diff options
Diffstat (limited to 'lib/lvgl/src/widgets')
34 files changed, 13979 insertions, 0 deletions
diff --git a/lib/lvgl b/lib/lvgl deleted file mode 160000 -Subproject 0732400e7b564dd0e7dc4a924619d8e19c5b23a diff --git a/lib/lvgl/src/widgets/lv_arc.c b/lib/lvgl/src/widgets/lv_arc.c new file mode 100644 index 00000000..6cab5f33 --- /dev/null +++ b/lib/lvgl/src/widgets/lv_arc.c @@ -0,0 +1,844 @@ +/** + * @file lv_arc.c + * + */ + +/********************* + * INCLUDES + *********************/ +#include "lv_arc.h" +#if LV_USE_ARC != 0 + +#include "../core/lv_group.h" +#include "../core/lv_indev.h" +#include "../misc/lv_assert.h" +#include "../misc/lv_math.h" +#include "../draw/lv_draw_arc.h" + +/********************* + * DEFINES + *********************/ +#define MY_CLASS &lv_arc_class + +#define VALUE_UNSET INT16_MIN + +/********************** + * TYPEDEFS + **********************/ + +/********************** + * STATIC PROTOTYPES + **********************/ + +static void lv_arc_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj); +static void lv_arc_draw(lv_event_t * e); +static void lv_arc_event(const lv_obj_class_t * class_p, lv_event_t * e); +static void inv_arc_area(lv_obj_t * arc, uint16_t start_angle, uint16_t end_angle, lv_part_t part); +static void inv_knob_area(lv_obj_t * obj); +static void get_center(const lv_obj_t * obj, lv_point_t * center, lv_coord_t * arc_r); +static lv_coord_t get_angle(const lv_obj_t * obj); +static void get_knob_area(lv_obj_t * arc, const lv_point_t * center, lv_coord_t r, lv_area_t * knob_area); +static void value_update(lv_obj_t * arc); + +/********************** + * STATIC VARIABLES + **********************/ +const lv_obj_class_t lv_arc_class = { + .constructor_cb = lv_arc_constructor, + .event_cb = lv_arc_event, + .instance_size = sizeof(lv_arc_t), + .editable = LV_OBJ_CLASS_EDITABLE_TRUE, + .base_class = &lv_obj_class +}; + +/********************** + * MACROS + **********************/ + +/********************** + * GLOBAL FUNCTIONS + **********************/ + +lv_obj_t * lv_arc_create(lv_obj_t * parent) +{ + LV_LOG_INFO("begin"); + lv_obj_t * obj = lv_obj_class_create_obj(MY_CLASS, parent); + lv_obj_class_init_obj(obj); + return obj; +} + +/*====================== + * Add/remove functions + *=====================*/ + +/* + * New object specific "add" or "remove" functions come here + */ + +/*===================== + * Setter functions + *====================*/ + +void lv_arc_set_start_angle(lv_obj_t * obj, uint16_t start) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + lv_arc_t * arc = (lv_arc_t *)obj; + + if(start > 360) start -= 360; + + int16_t old_delta = arc->indic_angle_end - arc->indic_angle_start; + int16_t new_delta = arc->indic_angle_end - start; + + if(old_delta < 0) old_delta = 360 + old_delta; + if(new_delta < 0) new_delta = 360 + new_delta; + + if(LV_ABS(new_delta - old_delta) > 180) lv_obj_invalidate(obj); + else if(new_delta < old_delta) inv_arc_area(obj, arc->indic_angle_start, start, LV_PART_INDICATOR); + else if(old_delta < new_delta) inv_arc_area(obj, start, arc->indic_angle_start, LV_PART_INDICATOR); + + inv_knob_area(obj); + + arc->indic_angle_start = start; + + inv_knob_area(obj); +} + +void lv_arc_set_end_angle(lv_obj_t * obj, uint16_t end) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + lv_arc_t * arc = (lv_arc_t *)obj; + if(end > 360) end -= 360; + + int16_t old_delta = arc->indic_angle_end - arc->indic_angle_start; + int16_t new_delta = end - arc->indic_angle_start; + + if(old_delta < 0) old_delta = 360 + old_delta; + if(new_delta < 0) new_delta = 360 + new_delta; + + if(LV_ABS(new_delta - old_delta) > 180) lv_obj_invalidate(obj); + else if(new_delta < old_delta) inv_arc_area(obj, end, arc->indic_angle_end, LV_PART_INDICATOR); + else if(old_delta < new_delta) inv_arc_area(obj, arc->indic_angle_end, end, LV_PART_INDICATOR); + + inv_knob_area(obj); + + arc->indic_angle_end = end; + + inv_knob_area(obj); +} + +void lv_arc_set_angles(lv_obj_t * obj, uint16_t start, uint16_t end) +{ + lv_arc_set_end_angle(obj, end); + lv_arc_set_start_angle(obj, start); +} + +void lv_arc_set_bg_start_angle(lv_obj_t * obj, uint16_t start) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + lv_arc_t * arc = (lv_arc_t *)obj; + + if(start > 360) start -= 360; + + int16_t old_delta = arc->bg_angle_end - arc->bg_angle_start; + int16_t new_delta = arc->bg_angle_end - start; + + if(old_delta < 0) old_delta = 360 + old_delta; + if(new_delta < 0) new_delta = 360 + new_delta; + + if(LV_ABS(new_delta - old_delta) > 180) lv_obj_invalidate(obj); + else if(new_delta < old_delta) inv_arc_area(obj, arc->bg_angle_start, start, LV_PART_MAIN); + else if(old_delta < new_delta) inv_arc_area(obj, start, arc->bg_angle_start, LV_PART_MAIN); + + arc->bg_angle_start = start; + + value_update(obj); +} + +void lv_arc_set_bg_end_angle(lv_obj_t * obj, uint16_t end) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + lv_arc_t * arc = (lv_arc_t *)obj; + + if(end > 360) end -= 360; + + int16_t old_delta = arc->bg_angle_end - arc->bg_angle_start; + int16_t new_delta = end - arc->bg_angle_start; + + if(old_delta < 0) old_delta = 360 + old_delta; + if(new_delta < 0) new_delta = 360 + new_delta; + + if(LV_ABS(new_delta - old_delta) > 180) lv_obj_invalidate(obj); + else if(new_delta < old_delta) inv_arc_area(obj, end, arc->bg_angle_end, LV_PART_MAIN); + else if(old_delta < new_delta) inv_arc_area(obj, arc->bg_angle_end, end, LV_PART_MAIN); + + arc->bg_angle_end = end; + + value_update(obj); +} + +void lv_arc_set_bg_angles(lv_obj_t * obj, uint16_t start, uint16_t end) +{ + lv_arc_set_bg_end_angle(obj, end); + lv_arc_set_bg_start_angle(obj, start); +} + +void lv_arc_set_rotation(lv_obj_t * obj, uint16_t rotation) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + lv_arc_t * arc = (lv_arc_t *)obj; + + arc->rotation = rotation; + + lv_obj_invalidate(obj); +} + +void lv_arc_set_mode(lv_obj_t * obj, lv_arc_mode_t type) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + lv_arc_t * arc = (lv_arc_t *)obj; + + int16_t val = arc->value; + + arc->type = type; + arc->value = -1; /** Force set_value handling*/ + + int16_t bg_midpoint, bg_end = arc->bg_angle_end; + if(arc->bg_angle_end < arc->bg_angle_start) bg_end = arc->bg_angle_end + 360; + + switch(arc->type) { + case LV_ARC_MODE_SYMMETRICAL: + bg_midpoint = (arc->bg_angle_start + bg_end) / 2; + lv_arc_set_start_angle(obj, bg_midpoint); + lv_arc_set_end_angle(obj, bg_midpoint); + break; + case LV_ARC_MODE_REVERSE: + lv_arc_set_end_angle(obj, arc->bg_angle_end); + break; + default: /** LV_ARC_TYPE_NORMAL*/ + lv_arc_set_start_angle(obj, arc->bg_angle_start); + } + + lv_arc_set_value(obj, val); +} + +void lv_arc_set_value(lv_obj_t * obj, int16_t value) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + lv_arc_t * arc = (lv_arc_t *)obj; + + if(arc->value == value) return; + + int16_t new_value; + new_value = value > arc->max_value ? arc->max_value : value; + new_value = new_value < arc->min_value ? arc->min_value : new_value; + + if(arc->value == new_value) return; + arc->value = new_value; + + value_update(obj); +} + +void lv_arc_set_range(lv_obj_t * obj, int16_t min, int16_t max) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + lv_arc_t * arc = (lv_arc_t *)obj; + + if(arc->min_value == min && arc->max_value == max) return; + + arc->min_value = min; + arc->max_value = max; + + if(arc->value < min) { + arc->value = min; + } + if(arc->value > max) { + arc->value = max; + } + + value_update(obj); /*value has changed relative to the new range*/ +} + +void lv_arc_set_change_rate(lv_obj_t * obj, uint16_t rate) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + lv_arc_t * arc = (lv_arc_t *)obj; + + arc->chg_rate = rate; +} + +/*===================== + * Getter functions + *====================*/ + +uint16_t lv_arc_get_angle_start(lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + return ((lv_arc_t *) obj)->indic_angle_start; +} + +uint16_t lv_arc_get_angle_end(lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + return ((lv_arc_t *) obj)->indic_angle_end; +} + +uint16_t lv_arc_get_bg_angle_start(lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + return ((lv_arc_t *) obj)->bg_angle_start; +} + +uint16_t lv_arc_get_bg_angle_end(lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + return ((lv_arc_t *) obj)->bg_angle_end; +} + +int16_t lv_arc_get_value(const lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + return ((lv_arc_t *) obj)->value; +} + +int16_t lv_arc_get_min_value(const lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + return ((lv_arc_t *) obj)->min_value; +} + +int16_t lv_arc_get_max_value(const lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + return ((lv_arc_t *) obj)->max_value; +} + +lv_arc_mode_t lv_arc_get_mode(const lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + return ((lv_arc_t *) obj)->type; +} + +/*===================== + * Other functions + *====================*/ + + +void lv_arc_align_obj_to_angle(const lv_obj_t * obj, lv_obj_t * obj_to_align, lv_coord_t r_offset) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + LV_ASSERT_NULL(obj_to_align); + + lv_obj_update_layout(obj); + + lv_point_t center; + lv_coord_t arc_r; + get_center(obj, ¢er, &arc_r); + lv_coord_t indic_width = lv_obj_get_style_arc_width(obj, LV_PART_INDICATOR); + lv_coord_t indic_width_half = indic_width / 2; + arc_r -= indic_width_half; + arc_r += r_offset; + + uint16_t angle = get_angle(obj); + lv_coord_t knob_x = (arc_r * lv_trigo_sin(angle + 90)) >> LV_TRIGO_SHIFT; + lv_coord_t knob_y = (arc_r * lv_trigo_sin(angle)) >> LV_TRIGO_SHIFT; + lv_obj_align_to(obj_to_align, obj, LV_ALIGN_CENTER, knob_x, knob_y); +} + +void lv_arc_rotate_obj_to_angle(const lv_obj_t * obj, lv_obj_t * obj_to_rotate, lv_coord_t r_offset) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + LV_ASSERT_NULL(obj_to_rotate); + + lv_obj_update_layout(obj); + + lv_point_t center; + lv_coord_t arc_r; + get_center(obj, ¢er, &arc_r); + lv_coord_t indic_width = lv_obj_get_style_arc_width(obj, LV_PART_INDICATOR); + lv_coord_t indic_width_half = indic_width / 2; + arc_r -= indic_width_half; + + arc_r += r_offset; + lv_obj_align_to(obj_to_rotate, obj, LV_ALIGN_CENTER, 0, -arc_r); + + lv_obj_update_layout(obj); + + uint16_t angle = get_angle(obj); + lv_coord_t pivot_x = obj_to_rotate->coords.x1 - center.x; + lv_coord_t pivot_y = obj_to_rotate->coords.y1 - center.y; + lv_obj_set_style_transform_pivot_x(obj_to_rotate, -pivot_x, 0); + lv_obj_set_style_transform_pivot_y(obj_to_rotate, -pivot_y, 0); + lv_obj_set_style_transform_angle(obj_to_rotate, angle * 10 + 900, 0); +} + + +/********************** + * STATIC FUNCTIONS + **********************/ + +static void lv_arc_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj) +{ + LV_UNUSED(class_p); + LV_TRACE_OBJ_CREATE("begin"); + + lv_arc_t * arc = (lv_arc_t *)obj; + + /*Initialize the allocated 'ext'*/ + arc->rotation = 0; + arc->bg_angle_start = 135; + arc->bg_angle_end = 45; + arc->indic_angle_start = 135; + arc->indic_angle_end = 270; + arc->type = LV_ARC_MODE_NORMAL; + arc->value = VALUE_UNSET; + arc->min_close = 1; + arc->min_value = 0; + arc->max_value = 100; + arc->dragging = false; + arc->chg_rate = 720; + arc->last_tick = lv_tick_get(); + arc->last_angle = arc->indic_angle_end; + + lv_obj_add_flag(obj, LV_OBJ_FLAG_CLICKABLE); + lv_obj_clear_flag(obj, LV_OBJ_FLAG_SCROLL_CHAIN | LV_OBJ_FLAG_SCROLLABLE); + lv_obj_set_ext_click_area(obj, LV_DPI_DEF / 10); + + + LV_TRACE_OBJ_CREATE("finished"); +} + +static void lv_arc_event(const lv_obj_class_t * class_p, lv_event_t * e) +{ + LV_UNUSED(class_p); + + lv_res_t res; + + /*Call the ancestor's event handler*/ + res = lv_obj_event_base(MY_CLASS, e); + if(res != LV_RES_OK) return; + + lv_event_code_t code = lv_event_get_code(e); + lv_obj_t * obj = lv_event_get_target(e); + lv_arc_t * arc = (lv_arc_t *)lv_event_get_target(e); + if(code == LV_EVENT_PRESSING) { + lv_indev_t * indev = lv_indev_get_act(); + if(indev == NULL) return; + + /*Handle only pointers here*/ + lv_indev_type_t indev_type = lv_indev_get_type(indev); + if(indev_type != LV_INDEV_TYPE_POINTER) return; + + lv_point_t p; + lv_indev_get_point(indev, &p); + + /*Make point relative to the arc's center*/ + lv_point_t center; + lv_coord_t r; + get_center(obj, ¢er, &r); + + p.x -= center.x; + p.y -= center.y; + + /*Enter dragging mode if pressed out of the knob*/ + if(arc->dragging == false) { + lv_coord_t indic_width = lv_obj_get_style_arc_width(obj, LV_PART_INDICATOR); + r -= indic_width; + /*Add some more sensitive area if there is no advanced git testing. + * (Advanced hit testing is more precise)*/ + if(lv_obj_has_flag(obj, LV_OBJ_FLAG_ADV_HITTEST)) { + r -= indic_width; + + } + else { + r -= LV_MAX(r / 4, indic_width); + } + if(r < 1) r = 1; + + if(p.x * p.x + p.y * p.y > r * r) { + arc->dragging = true; + arc->last_tick = lv_tick_get(); /*Capture timestamp at dragging start*/ + } + } + + /*It must be in "dragging" mode to turn the arc*/ + if(arc->dragging == false) return; + + /*No angle can be determined if exactly the middle of the arc is being pressed*/ + if(p.x == 0 && p.y == 0) return; + + /*Calculate the angle of the pressed point*/ + int16_t angle; + int16_t bg_end = arc->bg_angle_end; + if(arc->bg_angle_end < arc->bg_angle_start) { + bg_end = arc->bg_angle_end + 360; + } + + angle = lv_atan2(p.y, p.x); + angle -= arc->rotation; + angle -= arc->bg_angle_start; /*Make the angle relative to the start angle*/ + + if(angle < 0) angle += 360; + + int16_t deg_range = bg_end - arc->bg_angle_start; + + int16_t last_angle_rel = arc->last_angle - arc->bg_angle_start; + int16_t delta_angle = angle - last_angle_rel; + + /*Do not allow big jumps. + *It's mainly to avoid jumping to the opposite end if the "dead" range between min. and max. is crossed. + *Check which end was closer on the last valid press (arc->min_close) and prefer that end*/ + if(LV_ABS(delta_angle) > 280) { + if(arc->min_close) angle = 0; + else angle = deg_range; + } + else { + if(angle < deg_range / 2)arc->min_close = 1; + else arc->min_close = 0; + } + + /*Calculate the slew rate limited angle based on change rate (degrees/sec)*/ + delta_angle = angle - last_angle_rel; + uint32_t delta_tick = lv_tick_elaps(arc->last_tick); + int16_t delta_angle_max = (arc->chg_rate * delta_tick) / 1000; + + if(delta_angle > delta_angle_max) { + delta_angle = delta_angle_max; + } + else if(delta_angle < -delta_angle_max) { + delta_angle = -delta_angle_max; + } + + angle = last_angle_rel + delta_angle; /*Apply the limited angle change*/ + + /*Rounding for symmetry*/ + int32_t round = ((bg_end - arc->bg_angle_start) * 8) / (arc->max_value - arc->min_value); + round = (round + 4) >> 4; + angle += round; + + angle += arc->bg_angle_start; /*Make the angle absolute again*/ + + /*Set the new value*/ + int16_t old_value = arc->value; + int16_t new_value = lv_map(angle, arc->bg_angle_start, bg_end, arc->min_value, arc->max_value); + if(new_value != lv_arc_get_value(obj)) { + arc->last_tick = lv_tick_get(); /*Cache timestamp for the next iteration*/ + lv_arc_set_value(obj, new_value); /*set_value caches the last_angle for the next iteration*/ + if(new_value != old_value) { + res = lv_event_send(obj, LV_EVENT_VALUE_CHANGED, NULL); + if(res != LV_RES_OK) return; + } + } + + /*Don't let the elapsed time become too big while sitting on an end point*/ + if(new_value == arc->min_value || new_value == arc->max_value) { + arc->last_tick = lv_tick_get(); /*Cache timestamp for the next iteration*/ + } + } + else if(code == LV_EVENT_RELEASED || code == LV_EVENT_PRESS_LOST) { + arc->dragging = false; + + /*Leave edit mode if released. (No need to wait for LONG_PRESS)*/ + lv_group_t * g = lv_obj_get_group(obj); + bool editing = lv_group_get_editing(g); + lv_indev_type_t indev_type = lv_indev_get_type(lv_indev_get_act()); + if(indev_type == LV_INDEV_TYPE_ENCODER) { + if(editing) lv_group_set_editing(g, false); + } + + } + else if(code == LV_EVENT_KEY) { + char c = *((char *)lv_event_get_param(e)); + + int16_t old_value = arc->value; + if(c == LV_KEY_RIGHT || c == LV_KEY_UP) { + lv_arc_set_value(obj, lv_arc_get_value(obj) + 1); + } + else if(c == LV_KEY_LEFT || c == LV_KEY_DOWN) { + lv_arc_set_value(obj, lv_arc_get_value(obj) - 1); + } + + if(old_value != arc->value) { + res = lv_event_send(obj, LV_EVENT_VALUE_CHANGED, NULL); + if(res != LV_RES_OK) return; + } + } + else if(code == LV_EVENT_HIT_TEST) { + lv_hit_test_info_t * info = lv_event_get_param(e);; + + lv_point_t p; + lv_coord_t r; + get_center(obj, &p, &r); + + lv_coord_t ext_click_area = 0; + if(obj->spec_attr) ext_click_area = obj->spec_attr->ext_click_pad; + + lv_coord_t w = lv_obj_get_style_arc_width(obj, LV_PART_MAIN); + r -= w + ext_click_area; + + lv_area_t a; + /*Invalid if clicked inside*/ + lv_area_set(&a, p.x - r, p.y - r, p.x + r, p.y + r); + if(_lv_area_is_point_on(&a, info->point, LV_RADIUS_CIRCLE)) { + info->res = false; + return; + } + + /*Valid if no clicked outside*/ + lv_area_increase(&a, w + ext_click_area * 2, w + ext_click_area * 2); + info->res = _lv_area_is_point_on(&a, info->point, LV_RADIUS_CIRCLE); + } + else if(code == LV_EVENT_REFR_EXT_DRAW_SIZE) { + lv_coord_t bg_left = lv_obj_get_style_pad_left(obj, LV_PART_MAIN); + lv_coord_t bg_right = lv_obj_get_style_pad_right(obj, LV_PART_MAIN); + lv_coord_t bg_top = lv_obj_get_style_pad_top(obj, LV_PART_MAIN); + lv_coord_t bg_bottom = lv_obj_get_style_pad_bottom(obj, LV_PART_MAIN); + lv_coord_t bg_pad = LV_MAX4(bg_left, bg_right, bg_top, bg_bottom); + + lv_coord_t knob_left = lv_obj_get_style_pad_left(obj, LV_PART_KNOB); + lv_coord_t knob_right = lv_obj_get_style_pad_right(obj, LV_PART_KNOB); + lv_coord_t knob_top = lv_obj_get_style_pad_top(obj, LV_PART_KNOB); + lv_coord_t knob_bottom = lv_obj_get_style_pad_bottom(obj, LV_PART_KNOB); + lv_coord_t knob_pad = LV_MAX4(knob_left, knob_right, knob_top, knob_bottom) + 2; + + lv_coord_t * s = lv_event_get_param(e); + *s = LV_MAX(*s, knob_pad - bg_pad); + } + else if(code == LV_EVENT_DRAW_MAIN) { + lv_arc_draw(e); + } +} + +static void lv_arc_draw(lv_event_t * e) +{ + lv_obj_t * obj = lv_event_get_target(e); + lv_arc_t * arc = (lv_arc_t *)obj; + + lv_draw_ctx_t * draw_ctx = lv_event_get_draw_ctx(e); + + lv_point_t center; + lv_coord_t arc_r; + get_center(obj, ¢er, &arc_r); + + lv_obj_draw_part_dsc_t part_draw_dsc; + lv_obj_draw_dsc_init(&part_draw_dsc, draw_ctx); + + /*Draw the background arc*/ + lv_draw_arc_dsc_t arc_dsc; + if(arc_r > 0) { + lv_draw_arc_dsc_init(&arc_dsc); + lv_obj_init_draw_arc_dsc(obj, LV_PART_MAIN, &arc_dsc); + + part_draw_dsc.part = LV_PART_MAIN; + part_draw_dsc.class_p = MY_CLASS; + part_draw_dsc.type = LV_ARC_DRAW_PART_BACKGROUND; + part_draw_dsc.p1 = ¢er; + part_draw_dsc.radius = arc_r; + part_draw_dsc.arc_dsc = &arc_dsc; + lv_event_send(obj, LV_EVENT_DRAW_PART_BEGIN, &part_draw_dsc); + + lv_draw_arc(draw_ctx, &arc_dsc, ¢er, part_draw_dsc.radius, arc->bg_angle_start + arc->rotation, + arc->bg_angle_end + arc->rotation); + + lv_event_send(obj, LV_EVENT_DRAW_PART_END, &part_draw_dsc); + } + + /*Make the indicator arc smaller or larger according to its greatest padding value*/ + lv_coord_t left_indic = lv_obj_get_style_pad_left(obj, LV_PART_INDICATOR); + lv_coord_t right_indic = lv_obj_get_style_pad_right(obj, LV_PART_INDICATOR); + lv_coord_t top_indic = lv_obj_get_style_pad_top(obj, LV_PART_INDICATOR); + lv_coord_t bottom_indic = lv_obj_get_style_pad_bottom(obj, LV_PART_INDICATOR); + lv_coord_t indic_r = arc_r - LV_MAX4(left_indic, right_indic, top_indic, bottom_indic); + + if(indic_r > 0) { + lv_draw_arc_dsc_init(&arc_dsc); + lv_obj_init_draw_arc_dsc(obj, LV_PART_INDICATOR, &arc_dsc); + + part_draw_dsc.part = LV_PART_INDICATOR; + part_draw_dsc.class_p = MY_CLASS; + part_draw_dsc.type = LV_ARC_DRAW_PART_FOREGROUND; + part_draw_dsc.p1 = ¢er; + part_draw_dsc.radius = indic_r; + part_draw_dsc.arc_dsc = &arc_dsc; + lv_event_send(obj, LV_EVENT_DRAW_PART_BEGIN, &part_draw_dsc); + + if(arc_dsc.width > part_draw_dsc.radius) arc_dsc.width = part_draw_dsc.radius; + lv_draw_arc(draw_ctx, &arc_dsc, ¢er, part_draw_dsc.radius, arc->indic_angle_start + arc->rotation, + arc->indic_angle_end + arc->rotation); + + lv_event_send(obj, LV_EVENT_DRAW_PART_END, &part_draw_dsc); + } + + lv_area_t knob_area; + get_knob_area(obj, ¢er, arc_r, &knob_area); + + lv_draw_rect_dsc_t knob_rect_dsc; + lv_draw_rect_dsc_init(&knob_rect_dsc); + lv_obj_init_draw_rect_dsc(obj, LV_PART_KNOB, &knob_rect_dsc); + + part_draw_dsc.part = LV_PART_KNOB; + part_draw_dsc.class_p = MY_CLASS; + part_draw_dsc.type = LV_ARC_DRAW_PART_KNOB; + part_draw_dsc.draw_area = &knob_area; + part_draw_dsc.rect_dsc = &knob_rect_dsc; + lv_event_send(obj, LV_EVENT_DRAW_PART_BEGIN, &part_draw_dsc); + + lv_draw_rect(draw_ctx, &knob_rect_dsc, &knob_area); + + lv_event_send(obj, LV_EVENT_DRAW_PART_END, &part_draw_dsc); +} + +static void inv_arc_area(lv_obj_t * obj, uint16_t start_angle, uint16_t end_angle, lv_part_t part) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + /*Skip this complicated invalidation if the arc is not visible*/ + if(lv_obj_is_visible(obj) == false) return; + + lv_arc_t * arc = (lv_arc_t *)obj; + + if(start_angle == end_angle) return; + + if(start_angle > 360) start_angle -= 360; + if(end_angle > 360) end_angle -= 360; + + start_angle += arc->rotation; + end_angle += arc->rotation; + + if(start_angle > 360) start_angle -= 360; + if(end_angle > 360) end_angle -= 360; + + lv_coord_t r; + lv_point_t c; + get_center(obj, &c, &r); + + lv_coord_t w = lv_obj_get_style_arc_width(obj, part); + lv_coord_t rounded = lv_obj_get_style_arc_rounded(obj, part); + + lv_area_t inv_area; + lv_draw_arc_get_area(c.x, c.y, r, start_angle, end_angle, w, rounded, &inv_area); + lv_obj_invalidate_area(obj, &inv_area); +} + +static void inv_knob_area(lv_obj_t * obj) +{ + lv_point_t c; + lv_coord_t r; + get_center(obj, &c, &r); + + lv_area_t a; + get_knob_area(obj, &c, r, &a); + lv_obj_invalidate_area(obj, &a); +} + +static void get_center(const lv_obj_t * obj, lv_point_t * center, lv_coord_t * arc_r) +{ + lv_coord_t left_bg = lv_obj_get_style_pad_left(obj, LV_PART_MAIN); + lv_coord_t right_bg = lv_obj_get_style_pad_right(obj, LV_PART_MAIN); + lv_coord_t top_bg = lv_obj_get_style_pad_top(obj, LV_PART_MAIN); + lv_coord_t bottom_bg = lv_obj_get_style_pad_bottom(obj, LV_PART_MAIN); + + lv_coord_t r = (LV_MIN(lv_obj_get_width(obj) - left_bg - right_bg, + lv_obj_get_height(obj) - top_bg - bottom_bg)) / 2; + + center->x = obj->coords.x1 + r + left_bg; + center->y = obj->coords.y1 + r + top_bg; + + if(arc_r) *arc_r = r; +} + +static lv_coord_t get_angle(const lv_obj_t * obj) +{ + lv_arc_t * arc = (lv_arc_t *)obj; + uint16_t angle = arc->rotation; + if(arc->type == LV_ARC_MODE_NORMAL) { + angle += arc->indic_angle_end; + } + else if(arc->type == LV_ARC_MODE_REVERSE) { + angle += arc->indic_angle_start; + } + else if(arc->type == LV_ARC_MODE_SYMMETRICAL) { + int16_t bg_end = arc->bg_angle_end; + if(arc->bg_angle_end < arc->bg_angle_start) bg_end = arc->bg_angle_end + 360; + int16_t indic_end = arc->indic_angle_end; + if(arc->indic_angle_end < arc->indic_angle_start) indic_end = arc->indic_angle_end + 360; + + int32_t angle_midpoint = (int32_t)(arc->bg_angle_start + bg_end) / 2; + if(arc->indic_angle_start < angle_midpoint) angle += arc->indic_angle_start; + else if(indic_end > angle_midpoint) angle += arc->indic_angle_end; + else angle += angle_midpoint; + } + + return angle; +} + + +static void get_knob_area(lv_obj_t * obj, const lv_point_t * center, lv_coord_t r, lv_area_t * knob_area) +{ + lv_coord_t indic_width = lv_obj_get_style_arc_width(obj, LV_PART_INDICATOR); + lv_coord_t indic_width_half = indic_width / 2; + r -= indic_width_half; + + lv_coord_t angle = get_angle(obj); + lv_coord_t knob_x = (r * lv_trigo_sin(angle + 90)) >> LV_TRIGO_SHIFT; + lv_coord_t knob_y = (r * lv_trigo_sin(angle)) >> LV_TRIGO_SHIFT; + + lv_coord_t left_knob = lv_obj_get_style_pad_left(obj, LV_PART_KNOB); + lv_coord_t right_knob = lv_obj_get_style_pad_right(obj, LV_PART_KNOB); + lv_coord_t top_knob = lv_obj_get_style_pad_top(obj, LV_PART_KNOB); + lv_coord_t bottom_knob = lv_obj_get_style_pad_bottom(obj, LV_PART_KNOB); + + knob_area->x1 = center->x + knob_x - left_knob - indic_width_half; + knob_area->x2 = center->x + knob_x + right_knob + indic_width_half; + knob_area->y1 = center->y + knob_y - top_knob - indic_width_half; + knob_area->y2 = center->y + knob_y + bottom_knob + indic_width_half; +} + +/** + * Used internally to update arc angles after a value change + * @param arc pointer to an arc object + */ +static void value_update(lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + lv_arc_t * arc = (lv_arc_t *)obj; + + /*If the value is still not set to any value do not update*/ + if(arc->value == VALUE_UNSET) return; + + int16_t bg_midpoint, range_midpoint, bg_end = arc->bg_angle_end; + if(arc->bg_angle_end < arc->bg_angle_start) bg_end = arc->bg_angle_end + 360; + + int16_t angle; + switch(arc->type) { + case LV_ARC_MODE_SYMMETRICAL: + bg_midpoint = (arc->bg_angle_start + bg_end) / 2; + range_midpoint = (int32_t)(arc->min_value + arc->max_value) / 2; + + if(arc->value < range_midpoint) { + angle = lv_map(arc->value, arc->min_value, range_midpoint, arc->bg_angle_start, bg_midpoint); + lv_arc_set_start_angle(obj, angle); + lv_arc_set_end_angle(obj, bg_midpoint); + } + else { + angle = lv_map(arc->value, range_midpoint, arc->max_value, bg_midpoint, bg_end); + lv_arc_set_start_angle(obj, bg_midpoint); + lv_arc_set_end_angle(obj, angle); + } + break; + case LV_ARC_MODE_REVERSE: + angle = lv_map(arc->value, arc->min_value, arc->max_value, bg_end, arc->bg_angle_start); + lv_arc_set_angles(obj, angle, arc->bg_angle_end); + break; + case LV_ARC_MODE_NORMAL: + angle = lv_map(arc->value, arc->min_value, arc->max_value, arc->bg_angle_start, bg_end); + lv_arc_set_angles(obj, arc->bg_angle_start, angle); + + break; + default: + LV_LOG_WARN("Invalid mode: %d", arc->type); + return; + } + arc->last_angle = angle; /*Cache angle for slew rate limiting*/ +} + +#endif diff --git a/lib/lvgl/src/widgets/lv_arc.h b/lib/lvgl/src/widgets/lv_arc.h new file mode 100644 index 00000000..fd53fc15 --- /dev/null +++ b/lib/lvgl/src/widgets/lv_arc.h @@ -0,0 +1,256 @@ +/** + * @file lv_arc.h + * + */ + +#ifndef LV_ARC_H +#define LV_ARC_H + +#ifdef __cplusplus +extern "C" { +#endif + +/********************* + * INCLUDES + *********************/ +#include "../lv_conf_internal.h" + +#if LV_USE_ARC != 0 + +#include "../core/lv_obj.h" + +/********************* + * DEFINES + *********************/ + +/********************** + * TYPEDEFS + **********************/ + +enum { + LV_ARC_MODE_NORMAL, + LV_ARC_MODE_SYMMETRICAL, + LV_ARC_MODE_REVERSE +}; +typedef uint8_t lv_arc_mode_t; + +typedef struct { + lv_obj_t obj; + uint16_t rotation; + uint16_t indic_angle_start; + uint16_t indic_angle_end; + uint16_t bg_angle_start; + uint16_t bg_angle_end; + int16_t value; /*Current value of the arc*/ + int16_t min_value; /*Minimum value of the arc*/ + int16_t max_value; /*Maximum value of the arc*/ + uint16_t dragging : 1; + uint16_t type : 2; + uint16_t min_close : 1; /*1: the last pressed angle was closer to minimum end*/ + uint16_t chg_rate; /*Drag angle rate of change of the arc (degrees/sec)*/ + uint32_t last_tick; /*Last dragging event timestamp of the arc*/ + int16_t last_angle; /*Last dragging angle of the arc*/ +} lv_arc_t; + +extern const lv_obj_class_t lv_arc_class; + +/** + * `type` field in `lv_obj_draw_part_dsc_t` if `class_p = lv_arc_class` + * Used in `LV_EVENT_DRAW_PART_BEGIN` and `LV_EVENT_DRAW_PART_END` + */ +typedef enum { + LV_ARC_DRAW_PART_BACKGROUND, /**< The background arc*/ + LV_ARC_DRAW_PART_FOREGROUND, /**< The foreground arc*/ + LV_ARC_DRAW_PART_KNOB, /**< The knob*/ +} lv_arc_draw_part_type_t; + +/********************** + * GLOBAL PROTOTYPES + **********************/ + +/** + * Create an arc object + * @param parent pointer to an object, it will be the parent of the new arc + * @return pointer to the created arc + */ +lv_obj_t * lv_arc_create(lv_obj_t * parent); + +/*====================== + * Add/remove functions + *=====================*/ + +/*===================== + * Setter functions + *====================*/ + +/** + * Set the start angle of an arc. 0 deg: right, 90 bottom, etc. + * @param obj pointer to an arc object + * @param start the start angle + */ +void lv_arc_set_start_angle(lv_obj_t * obj, uint16_t start); + +/** + * Set the end angle of an arc. 0 deg: right, 90 bottom, etc. + * @param obj pointer to an arc object + * @param end the end angle + */ +void lv_arc_set_end_angle(lv_obj_t * obj, uint16_t end); + +/** + * Set the start and end angles + * @param obj pointer to an arc object + * @param start the start angle + * @param end the end angle + */ +void lv_arc_set_angles(lv_obj_t * obj, uint16_t start, uint16_t end); + +/** + * Set the start angle of an arc background. 0 deg: right, 90 bottom, etc. + * @param obj pointer to an arc object + * @param start the start angle + */ +void lv_arc_set_bg_start_angle(lv_obj_t * obj, uint16_t start); + +/** + * Set the start angle of an arc background. 0 deg: right, 90 bottom etc. + * @param obj pointer to an arc object + * @param end the end angle + */ +void lv_arc_set_bg_end_angle(lv_obj_t * obj, uint16_t end); + +/** + * Set the start and end angles of the arc background + * @param obj pointer to an arc object + * @param start the start angle + * @param end the end angle + */ +void lv_arc_set_bg_angles(lv_obj_t * obj, uint16_t start, uint16_t end); + +/** + * Set the rotation for the whole arc + * @param obj pointer to an arc object + * @param rotation rotation angle + */ +void lv_arc_set_rotation(lv_obj_t * obj, uint16_t rotation); + +/** + * Set the type of arc. + * @param obj pointer to arc object + * @param mode arc's mode + */ +void lv_arc_set_mode(lv_obj_t * obj, lv_arc_mode_t type); + +/** + * Set a new value on the arc + * @param obj pointer to an arc object + * @param value new value + */ +void lv_arc_set_value(lv_obj_t * obj, int16_t value); + +/** + * Set minimum and the maximum values of an arc + * @param obj pointer to the arc object + * @param min minimum value + * @param max maximum value + */ +void lv_arc_set_range(lv_obj_t * obj, int16_t min, int16_t max); + +/** + * Set a change rate to limit the speed how fast the arc should reach the pressed point. + * @param obj pointer to an arc object + * @param rate the change rate + */ +void lv_arc_set_change_rate(lv_obj_t * obj, uint16_t rate); + +/*===================== + * Getter functions + *====================*/ + +/** + * Get the start angle of an arc. + * @param obj pointer to an arc object + * @return the start angle [0..360] + */ +uint16_t lv_arc_get_angle_start(lv_obj_t * obj); + +/** + * Get the end angle of an arc. + * @param obj pointer to an arc object + * @return the end angle [0..360] + */ +uint16_t lv_arc_get_angle_end(lv_obj_t * obj); + +/** + * Get the start angle of an arc background. + * @param obj pointer to an arc object + * @return the start angle [0..360] + */ +uint16_t lv_arc_get_bg_angle_start(lv_obj_t * obj); + +/** + * Get the end angle of an arc background. + * @param obj pointer to an arc object + * @return the end angle [0..360] + */ +uint16_t lv_arc_get_bg_angle_end(lv_obj_t * obj); + +/** + * Get the value of an arc + * @param obj pointer to an arc object + * @return the value of the arc + */ +int16_t lv_arc_get_value(const lv_obj_t * obj); + +/** + * Get the minimum value of an arc + * @param obj pointer to an arc object + * @return the minimum value of the arc + */ +int16_t lv_arc_get_min_value(const lv_obj_t * obj); + +/** + * Get the maximum value of an arc + * @param obj pointer to an arc object + * @return the maximum value of the arc + */ +int16_t lv_arc_get_max_value(const lv_obj_t * obj); + +/** + * Get whether the arc is type or not. + * @param obj pointer to an arc object + * @return arc's mode + */ +lv_arc_mode_t lv_arc_get_mode(const lv_obj_t * obj); + +/*===================== + * Other functions + *====================*/ + +/** + * Align an object to the current position of the arc (knob) + * @param obj pointer to an arc object + * @param obj_to_align pointer to an object to align + * @param r_offset consider the radius larger with this value (< 0: for smaller radius) + */ +void lv_arc_align_obj_to_angle(const lv_obj_t * obj, lv_obj_t * obj_to_align, lv_coord_t r_offset); + +/** + * Rotate an object to the current position of the arc (knob) + * @param obj pointer to an arc object + * @param obj_to_align pointer to an object to rotate + * @param r_offset consider the radius larger with this value (< 0: for smaller radius) + */ +void lv_arc_rotate_obj_to_angle(const lv_obj_t * obj, lv_obj_t * obj_to_rotate, lv_coord_t r_offset); + +/********************** + * MACROS + **********************/ + +#endif /*LV_USE_ARC*/ + +#ifdef __cplusplus +} /*extern "C"*/ +#endif + +#endif /*LV_ARC_H*/ diff --git a/lib/lvgl/src/widgets/lv_bar.c b/lib/lvgl/src/widgets/lv_bar.c new file mode 100644 index 00000000..0da2a987 --- /dev/null +++ b/lib/lvgl/src/widgets/lv_bar.c @@ -0,0 +1,611 @@ +/** + * @file lv_bar.c + * + */ + +/********************* + * INCLUDES + *********************/ +#include "lv_bar.h" +#if LV_USE_BAR != 0 + +#include "../misc/lv_assert.h" +#include "../draw/lv_draw.h" +#include "../misc/lv_anim.h" +#include "../misc/lv_math.h" + +/********************* + * DEFINES + *********************/ +#define MY_CLASS &lv_bar_class + +/** hor. pad and ver. pad cannot make the indicator smaller than this [px]*/ +#define LV_BAR_SIZE_MIN 4 + +#define LV_BAR_IS_ANIMATING(anim_struct) (((anim_struct).anim_state) != LV_BAR_ANIM_STATE_INV) +#define LV_BAR_GET_ANIM_VALUE(orig_value, anim_struct) (LV_BAR_IS_ANIMATING(anim_struct) ? ((anim_struct).anim_end) : (orig_value)) + +/** Bar animation start value. (Not the real value of the Bar just indicates process animation)*/ +#define LV_BAR_ANIM_STATE_START 0 + +/** Bar animation end value. (Not the real value of the Bar just indicates process animation)*/ +#define LV_BAR_ANIM_STATE_END 256 + +/** Mark no animation is in progress*/ +#define LV_BAR_ANIM_STATE_INV -1 + +/** log2(LV_BAR_ANIM_STATE_END) used to normalize data*/ +#define LV_BAR_ANIM_STATE_NORM 8 + +/********************** + * TYPEDEFS + **********************/ + +/********************** + * STATIC PROTOTYPES + **********************/ +static void lv_bar_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj); +static void lv_bar_destructor(const lv_obj_class_t * class_p, lv_obj_t * obj); +static void lv_bar_event(const lv_obj_class_t * class_p, lv_event_t * e); +static void draw_indic(lv_event_t * e); +static void lv_bar_set_value_with_anim(lv_obj_t * obj, int32_t new_value, int32_t * value_ptr, + _lv_bar_anim_t * anim_info, lv_anim_enable_t en); +static void lv_bar_init_anim(lv_obj_t * bar, _lv_bar_anim_t * bar_anim); +static void lv_bar_anim(void * bar, int32_t value); +static void lv_bar_anim_ready(lv_anim_t * a); + +/********************** + * STATIC VARIABLES + **********************/ +const lv_obj_class_t lv_bar_class = { + .constructor_cb = lv_bar_constructor, + .destructor_cb = lv_bar_destructor, + .event_cb = lv_bar_event, + .width_def = LV_DPI_DEF * 2, + .height_def = LV_DPI_DEF / 10, + .instance_size = sizeof(lv_bar_t), + .base_class = &lv_obj_class +}; + +/********************** + * MACROS + **********************/ + +/********************** + * GLOBAL FUNCTIONS + **********************/ + +lv_obj_t * lv_bar_create(lv_obj_t * parent) +{ + LV_LOG_INFO("begin"); + lv_obj_t * obj = lv_obj_class_create_obj(MY_CLASS, parent); + lv_obj_class_init_obj(obj); + return obj; +} + +/*===================== + * Setter functions + *====================*/ + +void lv_bar_set_value(lv_obj_t * obj, int32_t value, lv_anim_enable_t anim) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + lv_bar_t * bar = (lv_bar_t *)obj; + + if(bar->cur_value == value) return; + + value = LV_CLAMP(bar->min_value, value, bar->max_value); + value = value < bar->start_value ? bar->start_value : value; /*Can't be smaller than the left value*/ + + if(bar->cur_value == value) return; + lv_bar_set_value_with_anim(obj, value, &bar->cur_value, &bar->cur_value_anim, anim); +} + +void lv_bar_set_start_value(lv_obj_t * obj, int32_t value, lv_anim_enable_t anim) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_bar_t * bar = (lv_bar_t *)obj; + + if(bar->mode != LV_BAR_MODE_RANGE) { + return; + } + + value = LV_CLAMP(bar->min_value, value, bar->max_value); + value = value > bar->cur_value ? bar->cur_value : value; /*Can't be greater than the right value*/ + + if(bar->start_value == value) return; + lv_bar_set_value_with_anim(obj, value, &bar->start_value, &bar->start_value_anim, anim); +} + +void lv_bar_set_range(lv_obj_t * obj, int32_t min, int32_t max) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_bar_t * bar = (lv_bar_t *)obj; + + if(bar->min_value == min && bar->max_value == max) return; + + bar->max_value = max; + bar->min_value = min; + + if(lv_bar_get_mode(obj) != LV_BAR_MODE_RANGE) + bar->start_value = min; + + if(bar->cur_value > max) { + bar->cur_value = max; + lv_bar_set_value(obj, bar->cur_value, LV_ANIM_OFF); + } + if(bar->cur_value < min) { + bar->cur_value = min; + lv_bar_set_value(obj, bar->cur_value, LV_ANIM_OFF); + } + lv_obj_invalidate(obj); +} + +void lv_bar_set_mode(lv_obj_t * obj, lv_bar_mode_t mode) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + lv_bar_t * bar = (lv_bar_t *)obj; + + bar->mode = mode; + if(bar->mode != LV_BAR_MODE_RANGE) { + bar->start_value = bar->min_value; + } + + lv_obj_invalidate(obj); +} + +/*===================== + * Getter functions + *====================*/ + +int32_t lv_bar_get_value(const lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + lv_bar_t * bar = (lv_bar_t *)obj; + + return LV_BAR_GET_ANIM_VALUE(bar->cur_value, bar->cur_value_anim); +} + +int32_t lv_bar_get_start_value(const lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + lv_bar_t * bar = (lv_bar_t *)obj; + + if(bar->mode != LV_BAR_MODE_RANGE) return bar->min_value; + + return LV_BAR_GET_ANIM_VALUE(bar->start_value, bar->start_value_anim); +} + +int32_t lv_bar_get_min_value(const lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + lv_bar_t * bar = (lv_bar_t *)obj; + return bar->min_value; +} + +int32_t lv_bar_get_max_value(const lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + lv_bar_t * bar = (lv_bar_t *)obj; + + return bar->max_value; +} + +lv_bar_mode_t lv_bar_get_mode(lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + lv_bar_t * bar = (lv_bar_t *)obj; + + return bar->mode; +} + +/********************** + * STATIC FUNCTIONS + **********************/ + +static void lv_bar_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj) +{ + LV_UNUSED(class_p); + LV_TRACE_OBJ_CREATE("begin"); + + lv_bar_t * bar = (lv_bar_t *)obj; + bar->min_value = 0; + bar->max_value = 100; + bar->start_value = 0; + bar->cur_value = 0; + bar->indic_area.x1 = 0; + bar->indic_area.x2 = 0; + bar->indic_area.y1 = 0; + bar->indic_area.y2 = 0; + bar->mode = LV_BAR_MODE_NORMAL; + + lv_bar_init_anim(obj, &bar->cur_value_anim); + lv_bar_init_anim(obj, &bar->start_value_anim); + + lv_obj_clear_flag(obj, LV_OBJ_FLAG_CHECKABLE); + lv_obj_clear_flag(obj, LV_OBJ_FLAG_SCROLLABLE); + lv_bar_set_value(obj, 0, LV_ANIM_OFF); + + LV_TRACE_OBJ_CREATE("finished"); +} + +static void lv_bar_destructor(const lv_obj_class_t * class_p, lv_obj_t * obj) +{ + LV_UNUSED(class_p); + lv_bar_t * bar = (lv_bar_t *)obj; + + lv_anim_del(&bar->cur_value_anim, NULL); + lv_anim_del(&bar->start_value_anim, NULL); +} + +static void draw_indic(lv_event_t * e) +{ + lv_obj_t * obj = lv_event_get_target(e); + lv_bar_t * bar = (lv_bar_t *)obj; + + lv_draw_ctx_t * draw_ctx = lv_event_get_draw_ctx(e); + + lv_area_t bar_coords; + lv_obj_get_coords(obj, &bar_coords); + + lv_coord_t transf_w = lv_obj_get_style_transform_width(obj, LV_PART_MAIN); + lv_coord_t transf_h = lv_obj_get_style_transform_height(obj, LV_PART_MAIN); + bar_coords.x1 -= transf_w; + bar_coords.x2 += transf_w; + bar_coords.y1 -= transf_h; + bar_coords.y2 += transf_h; + lv_coord_t barw = lv_area_get_width(&bar_coords); + lv_coord_t barh = lv_area_get_height(&bar_coords); + int32_t range = bar->max_value - bar->min_value; + bool hor = barw >= barh ? true : false; + bool sym = false; + if(bar->mode == LV_BAR_MODE_SYMMETRICAL && bar->min_value < 0 && bar->max_value > 0 && + bar->start_value == bar->min_value) sym = true; + + /*Calculate the indicator area*/ + lv_coord_t bg_left = lv_obj_get_style_pad_left(obj, LV_PART_MAIN); + lv_coord_t bg_right = lv_obj_get_style_pad_right(obj, LV_PART_MAIN); + lv_coord_t bg_top = lv_obj_get_style_pad_top(obj, LV_PART_MAIN); + lv_coord_t bg_bottom = lv_obj_get_style_pad_bottom(obj, LV_PART_MAIN); + /*Respect padding and minimum width/height too*/ + lv_area_copy(&bar->indic_area, &bar_coords); + bar->indic_area.x1 += bg_left; + bar->indic_area.x2 -= bg_right; + bar->indic_area.y1 += bg_top; + bar->indic_area.y2 -= bg_bottom; + + if(hor && lv_area_get_height(&bar->indic_area) < LV_BAR_SIZE_MIN) { + bar->indic_area.y1 = obj->coords.y1 + (barh / 2) - (LV_BAR_SIZE_MIN / 2); + bar->indic_area.y2 = bar->indic_area.y1 + LV_BAR_SIZE_MIN; + } + else if(!hor && lv_area_get_width(&bar->indic_area) < LV_BAR_SIZE_MIN) { + bar->indic_area.x1 = obj->coords.x1 + (barw / 2) - (LV_BAR_SIZE_MIN / 2); + bar->indic_area.x2 = bar->indic_area.x1 + LV_BAR_SIZE_MIN; + } + + lv_coord_t indicw = lv_area_get_width(&bar->indic_area); + lv_coord_t indich = lv_area_get_height(&bar->indic_area); + + /*Calculate the indicator length*/ + lv_coord_t anim_length = hor ? indicw : indich; + + lv_coord_t anim_cur_value_x, anim_start_value_x; + + lv_coord_t * axis1, * axis2; + lv_coord_t (*indic_length_calc)(const lv_area_t * area); + + if(hor) { + axis1 = &bar->indic_area.x1; + axis2 = &bar->indic_area.x2; + indic_length_calc = lv_area_get_width; + } + else { + axis1 = &bar->indic_area.y1; + axis2 = &bar->indic_area.y2; + indic_length_calc = lv_area_get_height; + } + + if(LV_BAR_IS_ANIMATING(bar->start_value_anim)) { + lv_coord_t anim_start_value_start_x = + (int32_t)((int32_t)anim_length * (bar->start_value_anim.anim_start - bar->min_value)) / range; + lv_coord_t anim_start_value_end_x = + (int32_t)((int32_t)anim_length * (bar->start_value_anim.anim_end - bar->min_value)) / range; + + anim_start_value_x = (((anim_start_value_end_x - anim_start_value_start_x) * bar->start_value_anim.anim_state) / + LV_BAR_ANIM_STATE_END); + + anim_start_value_x += anim_start_value_start_x; + } + else { + anim_start_value_x = (int32_t)((int32_t)anim_length * (bar->start_value - bar->min_value)) / range; + } + + if(LV_BAR_IS_ANIMATING(bar->cur_value_anim)) { + lv_coord_t anim_cur_value_start_x = + (int32_t)((int32_t)anim_length * (bar->cur_value_anim.anim_start - bar->min_value)) / range; + lv_coord_t anim_cur_value_end_x = + (int32_t)((int32_t)anim_length * (bar->cur_value_anim.anim_end - bar->min_value)) / range; + + anim_cur_value_x = anim_cur_value_start_x + (((anim_cur_value_end_x - anim_cur_value_start_x) * + bar->cur_value_anim.anim_state) / + LV_BAR_ANIM_STATE_END); + } + else { + anim_cur_value_x = (int32_t)((int32_t)anim_length * (bar->cur_value - bar->min_value)) / range; + } + + lv_base_dir_t base_dir = lv_obj_get_style_base_dir(obj, LV_PART_MAIN); + if(hor && base_dir == LV_BASE_DIR_RTL) { + /*Swap axes*/ + lv_coord_t * tmp; + tmp = axis1; + axis1 = axis2; + axis2 = tmp; + anim_cur_value_x = -anim_cur_value_x; + anim_start_value_x = -anim_start_value_x; + } + + /*Set the indicator length*/ + if(hor) { + *axis2 = *axis1 + anim_cur_value_x; + *axis1 += anim_start_value_x; + } + else { + *axis1 = *axis2 - anim_cur_value_x + 1; + *axis2 -= anim_start_value_x; + } + if(sym) { + lv_coord_t zero, shift; + shift = (-bar->min_value * anim_length) / range; + if(hor) { + zero = *axis1 + shift; + if(*axis2 > zero) + *axis1 = zero; + else { + *axis1 = *axis2; + *axis2 = zero; + } + } + else { + zero = *axis2 - shift + 1; + if(*axis1 > zero) + *axis2 = zero; + else { + *axis2 = *axis1; + *axis1 = zero; + } + if(*axis2 < *axis1) { + /*swap*/ + zero = *axis1; + *axis1 = *axis2; + *axis2 = zero; + } + } + } + + /*Do not draw a zero length indicator but at least call the draw part events*/ + if(!sym && indic_length_calc(&bar->indic_area) <= 1) { + + lv_obj_draw_part_dsc_t part_draw_dsc; + lv_obj_draw_dsc_init(&part_draw_dsc, draw_ctx); + part_draw_dsc.part = LV_PART_INDICATOR; + part_draw_dsc.class_p = MY_CLASS; + part_draw_dsc.type = LV_BAR_DRAW_PART_INDICATOR; + part_draw_dsc.draw_area = &bar->indic_area; + + lv_event_send(obj, LV_EVENT_DRAW_PART_BEGIN, &part_draw_dsc); + lv_event_send(obj, LV_EVENT_DRAW_PART_END, &part_draw_dsc); + return; + } + + lv_area_t indic_area; + lv_area_copy(&indic_area, &bar->indic_area); + + lv_draw_rect_dsc_t draw_rect_dsc; + lv_draw_rect_dsc_init(&draw_rect_dsc); + lv_obj_init_draw_rect_dsc(obj, LV_PART_INDICATOR, &draw_rect_dsc); + + lv_obj_draw_part_dsc_t part_draw_dsc; + lv_obj_draw_dsc_init(&part_draw_dsc, draw_ctx); + part_draw_dsc.part = LV_PART_INDICATOR; + part_draw_dsc.class_p = MY_CLASS; + part_draw_dsc.type = LV_BAR_DRAW_PART_INDICATOR; + part_draw_dsc.rect_dsc = &draw_rect_dsc; + part_draw_dsc.draw_area = &bar->indic_area; + + lv_event_send(obj, LV_EVENT_DRAW_PART_BEGIN, &part_draw_dsc); + + lv_coord_t bg_radius = lv_obj_get_style_radius(obj, LV_PART_MAIN); + lv_coord_t short_side = LV_MIN(barw, barh); + if(bg_radius > short_side >> 1) bg_radius = short_side >> 1; + + lv_coord_t indic_radius = draw_rect_dsc.radius; + short_side = LV_MIN(indicw, indich); + if(indic_radius > short_side >> 1) indic_radius = short_side >> 1; + + /*Draw only the shadow and outline only if the indicator is long enough. + *The radius of the bg and the indicator can make a strange shape where + *it'd be very difficult to draw shadow.*/ + if((hor && lv_area_get_width(&bar->indic_area) > indic_radius * 2) || + (!hor && lv_area_get_height(&bar->indic_area) > indic_radius * 2)) { + lv_opa_t bg_opa = draw_rect_dsc.bg_opa; + lv_opa_t bg_img_opa = draw_rect_dsc.bg_img_opa; + lv_opa_t border_opa = draw_rect_dsc.border_opa; + draw_rect_dsc.bg_opa = LV_OPA_TRANSP; + draw_rect_dsc.bg_img_opa = LV_OPA_TRANSP; + draw_rect_dsc.border_opa = LV_OPA_TRANSP; + + lv_draw_rect(draw_ctx, &draw_rect_dsc, &bar->indic_area); + + draw_rect_dsc.bg_opa = bg_opa; + draw_rect_dsc.bg_img_opa = bg_img_opa; + draw_rect_dsc.border_opa = border_opa; + } + +#if LV_DRAW_COMPLEX + lv_draw_mask_radius_param_t mask_bg_param; + lv_area_t bg_mask_area; + bg_mask_area.x1 = obj->coords.x1 + bg_left; + bg_mask_area.x2 = obj->coords.x2 - bg_right; + bg_mask_area.y1 = obj->coords.y1 + bg_top; + bg_mask_area.y2 = obj->coords.y2 - bg_bottom; + + lv_draw_mask_radius_init(&mask_bg_param, &bg_mask_area, bg_radius, false); + lv_coord_t mask_bg_id = lv_draw_mask_add(&mask_bg_param, NULL); +#endif + + /*Draw_only the background and background image*/ + lv_opa_t shadow_opa = draw_rect_dsc.shadow_opa; + lv_opa_t border_opa = draw_rect_dsc.border_opa; + draw_rect_dsc.border_opa = LV_OPA_TRANSP; + draw_rect_dsc.shadow_opa = LV_OPA_TRANSP; + + /*Get the max possible indicator area. The gradient should be applied on this*/ + lv_area_t mask_indic_max_area; + lv_area_copy(&mask_indic_max_area, &bar_coords); + mask_indic_max_area.x1 += bg_left; + mask_indic_max_area.y1 += bg_top; + mask_indic_max_area.x2 -= bg_right; + mask_indic_max_area.y2 -= bg_bottom; + if(hor && lv_area_get_height(&mask_indic_max_area) < LV_BAR_SIZE_MIN) { + mask_indic_max_area.y1 = obj->coords.y1 + (barh / 2) - (LV_BAR_SIZE_MIN / 2); + mask_indic_max_area.y2 = mask_indic_max_area.y1 + LV_BAR_SIZE_MIN; + } + else if(!hor && lv_area_get_width(&mask_indic_max_area) < LV_BAR_SIZE_MIN) { + mask_indic_max_area.x1 = obj->coords.x1 + (barw / 2) - (LV_BAR_SIZE_MIN / 2); + mask_indic_max_area.x2 = mask_indic_max_area.x1 + LV_BAR_SIZE_MIN; + } + +#if LV_DRAW_COMPLEX + /*Create a mask to the current indicator area to see only this part from the whole gradient.*/ + lv_draw_mask_radius_param_t mask_indic_param; + lv_draw_mask_radius_init(&mask_indic_param, &bar->indic_area, draw_rect_dsc.radius, false); + int16_t mask_indic_id = lv_draw_mask_add(&mask_indic_param, NULL); +#endif + + lv_draw_rect(draw_ctx, &draw_rect_dsc, &mask_indic_max_area); + draw_rect_dsc.border_opa = border_opa; + draw_rect_dsc.shadow_opa = shadow_opa; + + /*Draw the border*/ + draw_rect_dsc.bg_opa = LV_OPA_TRANSP; + draw_rect_dsc.bg_img_opa = LV_OPA_TRANSP; + draw_rect_dsc.shadow_opa = LV_OPA_TRANSP; + lv_draw_rect(draw_ctx, &draw_rect_dsc, &bar->indic_area); + +#if LV_DRAW_COMPLEX + lv_draw_mask_free_param(&mask_indic_param); + lv_draw_mask_free_param(&mask_bg_param); + lv_draw_mask_remove_id(mask_indic_id); + lv_draw_mask_remove_id(mask_bg_id); +#endif + + lv_event_send(obj, LV_EVENT_DRAW_PART_END, &part_draw_dsc); +} + +static void lv_bar_event(const lv_obj_class_t * class_p, lv_event_t * e) +{ + LV_UNUSED(class_p); + + lv_res_t res; + + /*Call the ancestor's event handler*/ + res = lv_obj_event_base(MY_CLASS, e); + if(res != LV_RES_OK) return; + + lv_event_code_t code = lv_event_get_code(e); + lv_obj_t * obj = lv_event_get_target(e); + + if(code == LV_EVENT_REFR_EXT_DRAW_SIZE) { + lv_coord_t indic_size; + indic_size = lv_obj_calculate_ext_draw_size(obj, LV_PART_INDICATOR); + + /*Bg size is handled by lv_obj*/ + lv_coord_t * s = lv_event_get_param(e); + *s = LV_MAX(*s, indic_size); + + /*Calculate the indicator area*/ + lv_coord_t bg_left = lv_obj_get_style_pad_left(obj, LV_PART_MAIN); + lv_coord_t bg_right = lv_obj_get_style_pad_right(obj, LV_PART_MAIN); + lv_coord_t bg_top = lv_obj_get_style_pad_top(obj, LV_PART_MAIN); + lv_coord_t bg_bottom = lv_obj_get_style_pad_bottom(obj, LV_PART_MAIN); + + lv_coord_t pad = LV_MIN4(bg_left, bg_right, bg_top, bg_bottom); + if(pad < 0) { + *s = LV_MAX(*s, -pad); + } + } + else if(code == LV_EVENT_PRESSED || code == LV_EVENT_RELEASED) { + lv_bar_t * bar = (lv_bar_t *)obj; + lv_obj_invalidate_area(obj, &bar->indic_area); + } + else if(code == LV_EVENT_DRAW_MAIN) { + draw_indic(e); + } +} + +static void lv_bar_anim(void * var, int32_t value) +{ + _lv_bar_anim_t * bar_anim = var; + bar_anim->anim_state = value; + lv_obj_invalidate(bar_anim->bar); +} + +static void lv_bar_anim_ready(lv_anim_t * a) +{ + _lv_bar_anim_t * var = a->var; + lv_obj_t * obj = (lv_obj_t *)var->bar; + lv_bar_t * bar = (lv_bar_t *)obj; + + var->anim_state = LV_BAR_ANIM_STATE_INV; + if(var == &bar->cur_value_anim) + bar->cur_value = var->anim_end; + else if(var == &bar->start_value_anim) + bar->start_value = var->anim_end; + lv_obj_invalidate(var->bar); +} + +static void lv_bar_set_value_with_anim(lv_obj_t * obj, int32_t new_value, int32_t * value_ptr, + _lv_bar_anim_t * anim_info, lv_anim_enable_t en) +{ + if(en == LV_ANIM_OFF) { + *value_ptr = new_value; + lv_obj_invalidate((lv_obj_t *)obj); + } + else { + /*No animation in progress -> simply set the values*/ + if(anim_info->anim_state == LV_BAR_ANIM_STATE_INV) { + anim_info->anim_start = *value_ptr; + anim_info->anim_end = new_value; + } + /*Animation in progress. Start from the animation end value*/ + else { + anim_info->anim_start = anim_info->anim_end; + anim_info->anim_end = new_value; + } + *value_ptr = new_value; + /*Stop the previous animation if it exists*/ + lv_anim_del(anim_info, NULL); + + lv_anim_t a; + lv_anim_init(&a); + lv_anim_set_var(&a, anim_info); + lv_anim_set_exec_cb(&a, lv_bar_anim); + lv_anim_set_values(&a, LV_BAR_ANIM_STATE_START, LV_BAR_ANIM_STATE_END); + lv_anim_set_ready_cb(&a, lv_bar_anim_ready); + lv_anim_set_time(&a, lv_obj_get_style_anim_time(obj, LV_PART_MAIN)); + lv_anim_start(&a); + } +} + +static void lv_bar_init_anim(lv_obj_t * obj, _lv_bar_anim_t * bar_anim) +{ + bar_anim->bar = obj; + bar_anim->anim_start = 0; + bar_anim->anim_end = 0; + bar_anim->anim_state = LV_BAR_ANIM_STATE_INV; +} + +#endif diff --git a/lib/lvgl/src/widgets/lv_bar.h b/lib/lvgl/src/widgets/lv_bar.h new file mode 100644 index 00000000..1726425b --- /dev/null +++ b/lib/lvgl/src/widgets/lv_bar.h @@ -0,0 +1,164 @@ +/** + * @file lv_bar.h + * + */ + +#ifndef LV_BAR_H +#define LV_BAR_H + +#ifdef __cplusplus +extern "C" { +#endif + +/********************* + * INCLUDES + *********************/ +#include "../lv_conf_internal.h" + +#if LV_USE_BAR != 0 + +#include "../core/lv_obj.h" +#include "../misc/lv_anim.h" +#include "lv_btn.h" +#include "lv_label.h" + +/********************* + * DEFINES + *********************/ + +/********************** + * TYPEDEFS + **********************/ + +enum { + LV_BAR_MODE_NORMAL, + LV_BAR_MODE_SYMMETRICAL, + LV_BAR_MODE_RANGE +}; +typedef uint8_t lv_bar_mode_t; + +typedef struct { + lv_obj_t * bar; + int32_t anim_start; + int32_t anim_end; + int32_t anim_state; +} _lv_bar_anim_t; + +typedef struct { + lv_obj_t obj; + int32_t cur_value; /**< Current value of the bar*/ + int32_t min_value; /**< Minimum value of the bar*/ + int32_t max_value; /**< Maximum value of the bar*/ + int32_t start_value; /**< Start value of the bar*/ + lv_area_t indic_area; /**< Save the indicator area. Might be used by derived types*/ + _lv_bar_anim_t cur_value_anim; + _lv_bar_anim_t start_value_anim; + lv_bar_mode_t mode : 2; /**< Type of bar*/ +} lv_bar_t; + +extern const lv_obj_class_t lv_bar_class; + +/** + * `type` field in `lv_obj_draw_part_dsc_t` if `class_p = lv_bar_class` + * Used in `LV_EVENT_DRAW_PART_BEGIN` and `LV_EVENT_DRAW_PART_END` + */ +typedef enum { + LV_BAR_DRAW_PART_INDICATOR, /**< The indicator*/ +} lv_bar_draw_part_type_t; + +/********************** + * GLOBAL PROTOTYPES + **********************/ + +/** + * Create a bar object + * @param parent pointer to an object, it will be the parent of the new bar + * @return pointer to the created bar + */ +lv_obj_t * lv_bar_create(lv_obj_t * parent); + +/*===================== + * Setter functions + *====================*/ + +/** + * Set a new value on the bar + * @param bar pointer to a bar object + * @param value new value + * @param anim LV_ANIM_ON: set the value with an animation; LV_ANIM_OFF: change the value immediately + */ +void lv_bar_set_value(lv_obj_t * obj, int32_t value, lv_anim_enable_t anim); + +/** + * Set a new start value on the bar + * @param obj pointer to a bar object + * @param value new start value + * @param anim LV_ANIM_ON: set the value with an animation; LV_ANIM_OFF: change the value immediately + */ +void lv_bar_set_start_value(lv_obj_t * obj, int32_t start_value, lv_anim_enable_t anim); + +/** + * Set minimum and the maximum values of a bar + * @param obj pointer to the bar object + * @param min minimum value + * @param max maximum value + */ +void lv_bar_set_range(lv_obj_t * obj, int32_t min, int32_t max); + +/** + * Set the type of bar. + * @param obj pointer to bar object + * @param mode bar type from ::lv_bar_mode_t + */ +void lv_bar_set_mode(lv_obj_t * obj, lv_bar_mode_t mode); + +/*===================== + * Getter functions + *====================*/ + +/** + * Get the value of a bar + * @param obj pointer to a bar object + * @return the value of the bar + */ +int32_t lv_bar_get_value(const lv_obj_t * obj); + +/** + * Get the start value of a bar + * @param obj pointer to a bar object + * @return the start value of the bar + */ +int32_t lv_bar_get_start_value(const lv_obj_t * obj); + +/** + * Get the minimum value of a bar + * @param obj pointer to a bar object + * @return the minimum value of the bar + */ +int32_t lv_bar_get_min_value(const lv_obj_t * obj); + +/** + * Get the maximum value of a bar + * @param obj pointer to a bar object + * @return the maximum value of the bar + */ +int32_t lv_bar_get_max_value(const lv_obj_t * obj); + +/** + * Get the type of bar. + * @param obj pointer to bar object + * @return bar type from ::lv_bar_mode_t + */ +lv_bar_mode_t lv_bar_get_mode(lv_obj_t * obj); + +/********************** + * MACROS + **********************/ + +#endif /*LV_USE_BAR*/ + +#ifdef __cplusplus +} /*extern "C"*/ +#endif + +#endif /*LV_BAR_H*/ diff --git a/lib/lvgl/src/widgets/lv_btn.c b/lib/lvgl/src/widgets/lv_btn.c new file mode 100644 index 00000000..5676dc7a --- /dev/null +++ b/lib/lvgl/src/widgets/lv_btn.c @@ -0,0 +1,72 @@ +/** + * @file lv_btn.c + * + */ + +/********************* + * INCLUDES + *********************/ + +#include "lv_btn.h" +#if LV_USE_BTN != 0 + +#include "../extra/layouts/flex/lv_flex.h" + +/********************* + * DEFINES + *********************/ +#define MY_CLASS &lv_btn_class + +/********************** + * TYPEDEFS + **********************/ + +/********************** + * STATIC PROTOTYPES + **********************/ +static void lv_btn_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj); + +/********************** + * STATIC VARIABLES + **********************/ +const lv_obj_class_t lv_btn_class = { + .constructor_cb = lv_btn_constructor, + .width_def = LV_SIZE_CONTENT, + .height_def = LV_SIZE_CONTENT, + .group_def = LV_OBJ_CLASS_GROUP_DEF_TRUE, + .instance_size = sizeof(lv_btn_t), + .base_class = &lv_obj_class +}; + +/********************** + * MACROS + **********************/ + +/********************** + * GLOBAL FUNCTIONS + **********************/ + +lv_obj_t * lv_btn_create(lv_obj_t * parent) +{ + LV_LOG_INFO("begin"); + lv_obj_t * obj = lv_obj_class_create_obj(MY_CLASS, parent); + lv_obj_class_init_obj(obj); + return obj; +} + +/********************** + * STATIC FUNCTIONS + **********************/ + +static void lv_btn_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj) +{ + LV_UNUSED(class_p); + LV_TRACE_OBJ_CREATE("begin"); + + lv_obj_clear_flag(obj, LV_OBJ_FLAG_SCROLLABLE); + lv_obj_add_flag(obj, LV_OBJ_FLAG_SCROLL_ON_FOCUS); + + LV_TRACE_OBJ_CREATE("finished"); +} + +#endif diff --git a/lib/lvgl/src/widgets/lv_btn.h b/lib/lvgl/src/widgets/lv_btn.h new file mode 100644 index 00000000..1d471f97 --- /dev/null +++ b/lib/lvgl/src/widgets/lv_btn.h @@ -0,0 +1,56 @@ +/** + * @file lv_btn.h + * + */ + +#ifndef LV_BTN_H +#define LV_BTN_H + +#ifdef __cplusplus +extern "C" { +#endif + +/********************* + * INCLUDES + *********************/ +#include "../lv_conf_internal.h" + +#if LV_USE_BTN != 0 +#include "../core/lv_obj.h" + +/********************* + * DEFINES + *********************/ + +/********************** + * TYPEDEFS + **********************/ + +typedef struct { + lv_obj_t obj; +} lv_btn_t; + +extern const lv_obj_class_t lv_btn_class; + +/********************** + * GLOBAL PROTOTYPES + **********************/ + +/** + * Create a button object + * @param parent pointer to an object, it will be the parent of the new button + * @return pointer to the created button + */ +lv_obj_t * lv_btn_create(lv_obj_t * parent); + +/********************** + * MACROS + **********************/ + +#endif /*LV_USE_BTN*/ + +#ifdef __cplusplus +} /*extern "C"*/ +#endif + +#endif /*LV_BTN_H*/ diff --git a/lib/lvgl/src/widgets/lv_btnmatrix.c b/lib/lvgl/src/widgets/lv_btnmatrix.c new file mode 100644 index 00000000..92a4d2fe --- /dev/null +++ b/lib/lvgl/src/widgets/lv_btnmatrix.c @@ -0,0 +1,1048 @@ +/** + * @file lv_btnmatrix.c + * + */ + +/********************* + * INCLUDES + *********************/ +#include "lv_btnmatrix.h" +#if LV_USE_BTNMATRIX != 0 + +#include "../misc/lv_assert.h" +#include "../core/lv_indev.h" +#include "../core/lv_group.h" +#include "../draw/lv_draw.h" +#include "../core/lv_refr.h" +#include "../misc/lv_txt.h" +#include "../misc/lv_txt_ap.h" + +/********************* + * DEFINES + *********************/ +#define MY_CLASS &lv_btnmatrix_class + +#define BTN_EXTRA_CLICK_AREA_MAX (LV_DPI_DEF / 10) +#define LV_BTNMATRIX_WIDTH_MASK 0x0007 + +/********************** + * TYPEDEFS + **********************/ + +/********************** + * STATIC PROTOTYPES + **********************/ +static void lv_btnmatrix_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj); +static void lv_btnmatrix_destructor(const lv_obj_class_t * class_p, lv_obj_t * obj); +static void lv_btnmatrix_event(const lv_obj_class_t * class_p, lv_event_t * e); +static void draw_main(lv_event_t * e); + +static uint8_t get_button_width(lv_btnmatrix_ctrl_t ctrl_bits); +static bool button_is_hidden(lv_btnmatrix_ctrl_t ctrl_bits); +static bool button_is_checked(lv_btnmatrix_ctrl_t ctrl_bits); +static bool button_is_repeat_disabled(lv_btnmatrix_ctrl_t ctrl_bits); +static bool button_is_inactive(lv_btnmatrix_ctrl_t ctrl_bits); +static bool button_is_click_trig(lv_btnmatrix_ctrl_t ctrl_bits); +static bool button_is_popover(lv_btnmatrix_ctrl_t ctrl_bits); +static bool button_is_checkable(lv_btnmatrix_ctrl_t ctrl_bits); +static bool button_is_recolor(lv_btnmatrix_ctrl_t ctrl_bits); +static bool button_get_checked(lv_btnmatrix_ctrl_t ctrl_bits); +static uint16_t get_button_from_point(lv_obj_t * obj, lv_point_t * p); +static void allocate_btn_areas_and_controls(const lv_obj_t * obj, const char ** map); +static void invalidate_button_area(const lv_obj_t * obj, uint16_t btn_idx); +static void make_one_button_checked(lv_obj_t * obj, uint16_t btn_idx); +static bool has_popovers_in_top_row(lv_obj_t * obj); + +/********************** + * STATIC VARIABLES + **********************/ +static const char * lv_btnmatrix_def_map[] = {"Btn1", "Btn2", "Btn3", "\n", "Btn4", "Btn5", ""}; + +const lv_obj_class_t lv_btnmatrix_class = { + .constructor_cb = lv_btnmatrix_constructor, + .destructor_cb = lv_btnmatrix_destructor, + .event_cb = lv_btnmatrix_event, + .width_def = LV_DPI_DEF * 2, + .height_def = LV_DPI_DEF, + .instance_size = sizeof(lv_btnmatrix_t), + .editable = LV_OBJ_CLASS_EDITABLE_TRUE, + .group_def = LV_OBJ_CLASS_GROUP_DEF_TRUE, + .base_class = &lv_obj_class +}; + +/********************** + * MACROS + **********************/ + +/********************** + * GLOBAL FUNCTIONS + **********************/ + +lv_obj_t * lv_btnmatrix_create(lv_obj_t * parent) +{ + LV_LOG_INFO("begin"); + lv_obj_t * obj = lv_obj_class_create_obj(MY_CLASS, parent); + lv_obj_class_init_obj(obj); + return obj; +} + +/*===================== + * Setter functions + *====================*/ + +void lv_btnmatrix_set_map(lv_obj_t * obj, const char * map[]) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + if(map == NULL) return; + + lv_btnmatrix_t * btnm = (lv_btnmatrix_t *)obj; + + /*Analyze the map and create the required number of buttons*/ + allocate_btn_areas_and_controls(obj, map); + btnm->map_p = map; + + lv_base_dir_t base_dir = lv_obj_get_style_base_dir(obj, LV_PART_MAIN); + + /*Set size and positions of the buttons*/ + lv_coord_t pleft = lv_obj_get_style_pad_left(obj, LV_PART_MAIN); + lv_coord_t ptop = lv_obj_get_style_pad_top(obj, LV_PART_MAIN); + lv_coord_t prow = lv_obj_get_style_pad_row(obj, LV_PART_MAIN); + lv_coord_t pcol = lv_obj_get_style_pad_column(obj, LV_PART_MAIN); + + lv_coord_t max_w = lv_obj_get_content_width(obj); + lv_coord_t max_h = lv_obj_get_content_height(obj); + + /*Calculate the position of each row*/ + lv_coord_t max_h_no_gap = max_h - (prow * (btnm->row_cnt - 1)); + + /*Count the units and the buttons in a line + *(A button can be 1,2,3... unit wide)*/ + uint32_t txt_tot_i = 0; /*Act. index in the str map*/ + uint32_t btn_tot_i = 0; /*Act. index of button areas*/ + const char ** map_row = map; + + /*Count the units and the buttons in a line*/ + uint32_t row; + for(row = 0; row < btnm->row_cnt; row++) { + uint16_t unit_cnt = 0; /*Number of units in a row*/ + uint16_t btn_cnt = 0; /*Number of buttons in a row*/ + /*Count the buttons and units in this row*/ + while(map_row[btn_cnt] && strcmp(map_row[btn_cnt], "\n") != 0 && map_row[btn_cnt][0] != '\0') { + unit_cnt += get_button_width(btnm->ctrl_bits[btn_tot_i + btn_cnt]); + btn_cnt++; + } + + /*Only deal with the non empty lines*/ + if(btn_cnt == 0) { + map_row = &map_row[btn_cnt + 1]; /*Set the map to the next row*/ + continue; + } + + lv_coord_t row_y1 = ptop + (max_h_no_gap * row) / btnm->row_cnt + row * prow; + lv_coord_t row_y2 = ptop + (max_h_no_gap * (row + 1)) / btnm->row_cnt + row * prow - 1; + + /*Set the button size and positions*/ + lv_coord_t max_w_no_gap = max_w - (pcol * (btn_cnt - 1)); + if(max_w_no_gap < 0) max_w_no_gap = 0; + + uint32_t row_unit_cnt = 0; /*The current unit position in the row*/ + uint32_t btn; + for(btn = 0; btn < btn_cnt; btn++, btn_tot_i++, txt_tot_i++) { + uint32_t btn_u = get_button_width(btnm->ctrl_bits[btn_tot_i]); + + lv_coord_t btn_x1 = (max_w_no_gap * row_unit_cnt) / unit_cnt + btn * pcol; + lv_coord_t btn_x2 = (max_w_no_gap * (row_unit_cnt + btn_u)) / unit_cnt + btn * pcol - 1; + + /*If RTL start from the right*/ + if(base_dir == LV_BASE_DIR_RTL) { + lv_coord_t tmp = btn_x1; + btn_x1 = btn_x2; + btn_x2 = tmp; + + btn_x1 = max_w - btn_x1; + btn_x2 = max_w - btn_x2; + } + + btn_x1 += pleft; + btn_x2 += pleft; + + lv_area_set(&btnm->button_areas[btn_tot_i], btn_x1, row_y1, btn_x2, row_y2); + + row_unit_cnt += btn_u; + } + + map_row = &map_row[btn_cnt + 1]; /*Set the map to the next line*/ + } + + /*Popovers in the top row will draw outside the widget and the extended draw size depends on + *the row height which may have changed when setting the new map*/ + lv_obj_refresh_ext_draw_size(obj); + + lv_obj_invalidate(obj); +} + +void lv_btnmatrix_set_ctrl_map(lv_obj_t * obj, const lv_btnmatrix_ctrl_t ctrl_map[]) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_btnmatrix_t * btnm = (lv_btnmatrix_t *)obj; + lv_memcpy(btnm->ctrl_bits, ctrl_map, sizeof(lv_btnmatrix_ctrl_t) * btnm->btn_cnt); + + lv_btnmatrix_set_map(obj, btnm->map_p); +} + +void lv_btnmatrix_set_selected_btn(lv_obj_t * obj, uint16_t btn_id) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_btnmatrix_t * btnm = (lv_btnmatrix_t *)obj; + + if(btn_id >= btnm->btn_cnt && btn_id != LV_BTNMATRIX_BTN_NONE) return; + + invalidate_button_area(obj, btnm->btn_id_sel); + btnm->btn_id_sel = btn_id; + invalidate_button_area(obj, btn_id); +} + +void lv_btnmatrix_set_btn_ctrl(lv_obj_t * obj, uint16_t btn_id, lv_btnmatrix_ctrl_t ctrl) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_btnmatrix_t * btnm = (lv_btnmatrix_t *)obj;; + + if(btn_id >= btnm->btn_cnt) return; + + if(btnm->one_check && (ctrl & LV_BTNMATRIX_CTRL_CHECKED)) { + lv_btnmatrix_clear_btn_ctrl_all(obj, LV_BTNMATRIX_CTRL_CHECKED); + } + + btnm->ctrl_bits[btn_id] |= ctrl; + invalidate_button_area(obj, btn_id); + + if(ctrl & LV_BTNMATRIX_CTRL_POPOVER) { + lv_obj_refresh_ext_draw_size(obj); + } +} + +void lv_btnmatrix_clear_btn_ctrl(lv_obj_t * obj, uint16_t btn_id, lv_btnmatrix_ctrl_t ctrl) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_btnmatrix_t * btnm = (lv_btnmatrix_t *)obj;; + + if(btn_id >= btnm->btn_cnt) return; + + btnm->ctrl_bits[btn_id] &= (~ctrl); + invalidate_button_area(obj, btn_id); + + if(ctrl & LV_BTNMATRIX_CTRL_POPOVER) { + lv_obj_refresh_ext_draw_size(obj); + } +} + +void lv_btnmatrix_set_btn_ctrl_all(lv_obj_t * obj, lv_btnmatrix_ctrl_t ctrl) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_btnmatrix_t * btnm = (lv_btnmatrix_t *)obj;; + uint16_t i; + for(i = 0; i < btnm->btn_cnt; i++) { + lv_btnmatrix_set_btn_ctrl(obj, i, ctrl); + } +} + +void lv_btnmatrix_clear_btn_ctrl_all(lv_obj_t * obj, lv_btnmatrix_ctrl_t ctrl) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_btnmatrix_t * btnm = (lv_btnmatrix_t *)obj;; + uint16_t i; + for(i = 0; i < btnm->btn_cnt; i++) { + lv_btnmatrix_clear_btn_ctrl(obj, i, ctrl); + } +} + +void lv_btnmatrix_set_btn_width(lv_obj_t * obj, uint16_t btn_id, uint8_t width) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_btnmatrix_t * btnm = (lv_btnmatrix_t *)obj;; + if(btn_id >= btnm->btn_cnt) return; + btnm->ctrl_bits[btn_id] &= (~LV_BTNMATRIX_WIDTH_MASK); + btnm->ctrl_bits[btn_id] |= (LV_BTNMATRIX_WIDTH_MASK & width); + + lv_btnmatrix_set_map(obj, btnm->map_p); +} + +void lv_btnmatrix_set_one_checked(lv_obj_t * obj, bool en) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_btnmatrix_t * btnm = (lv_btnmatrix_t *)obj;; + btnm->one_check = en; + + /*If more than one button is toggled only the first one should be*/ + make_one_button_checked(obj, 0); +} + +/*===================== + * Getter functions + *====================*/ + +const char ** lv_btnmatrix_get_map(const lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_btnmatrix_t * btnm = (lv_btnmatrix_t *)obj;; + return btnm->map_p; +} + +uint16_t lv_btnmatrix_get_selected_btn(const lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_btnmatrix_t * btnm = (lv_btnmatrix_t *)obj;; + return btnm->btn_id_sel; +} + +const char * lv_btnmatrix_get_btn_text(const lv_obj_t * obj, uint16_t btn_id) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + if(btn_id == LV_BTNMATRIX_BTN_NONE) return NULL; + + lv_btnmatrix_t * btnm = (lv_btnmatrix_t *)obj; + if(btn_id > btnm->btn_cnt) return NULL; + + uint16_t txt_i = 0; + uint16_t btn_i = 0; + + /*Search the text of btnm->btn_pr the buttons text in the map + *Skip "\n"-s*/ + while(btn_i != btn_id) { + btn_i++; + txt_i++; + if(strcmp(btnm->map_p[txt_i], "\n") == 0) txt_i++; + } + + if(btn_i == btnm->btn_cnt) return NULL; + + return btnm->map_p[txt_i]; +} + +bool lv_btnmatrix_has_btn_ctrl(lv_obj_t * obj, uint16_t btn_id, lv_btnmatrix_ctrl_t ctrl) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_btnmatrix_t * btnm = (lv_btnmatrix_t *)obj;; + if(btn_id >= btnm->btn_cnt) return false; + + return ((btnm->ctrl_bits[btn_id] & ctrl) == ctrl) ? true : false; +} + +bool lv_btnmatrix_get_one_checked(const lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_btnmatrix_t * btnm = (lv_btnmatrix_t *)obj;; + + return btnm->one_check; +} + +/********************** + * STATIC FUNCTIONS + **********************/ + +static void lv_btnmatrix_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj) +{ + LV_UNUSED(class_p); + LV_TRACE_OBJ_CREATE("begin"); + lv_btnmatrix_t * btnm = (lv_btnmatrix_t *)obj; + btnm->btn_cnt = 0; + btnm->row_cnt = 0; + btnm->btn_id_sel = LV_BTNMATRIX_BTN_NONE; + btnm->button_areas = NULL; + btnm->ctrl_bits = NULL; + btnm->map_p = NULL; + btnm->one_check = 0; + + lv_btnmatrix_set_map(obj, lv_btnmatrix_def_map); + + LV_TRACE_OBJ_CREATE("finished"); +} + +static void lv_btnmatrix_destructor(const lv_obj_class_t * class_p, lv_obj_t * obj) +{ + LV_TRACE_OBJ_CREATE("begin"); + LV_UNUSED(class_p); + lv_btnmatrix_t * btnm = (lv_btnmatrix_t *)obj; + lv_mem_free(btnm->button_areas); + lv_mem_free(btnm->ctrl_bits); + btnm->button_areas = NULL; + btnm->ctrl_bits = NULL; + LV_TRACE_OBJ_CREATE("finished"); +} + +static void lv_btnmatrix_event(const lv_obj_class_t * class_p, lv_event_t * e) +{ + LV_UNUSED(class_p); + + lv_res_t res; + + /*Call the ancestor's event handler*/ + res = lv_obj_event_base(MY_CLASS, e); + if(res != LV_RES_OK) return; + + lv_event_code_t code = lv_event_get_code(e); + lv_obj_t * obj = lv_event_get_target(e); + lv_btnmatrix_t * btnm = (lv_btnmatrix_t *)obj; + lv_point_t p; + + if(code == LV_EVENT_REFR_EXT_DRAW_SIZE) { + if(has_popovers_in_top_row(obj)) { + /*reserve one row worth of extra space to account for popovers in the top row*/ + lv_coord_t s = btnm->row_cnt > 0 ? lv_obj_get_content_height(obj) / btnm->row_cnt : 0; + lv_event_set_ext_draw_size(e, s); + } + } + if(code == LV_EVENT_STYLE_CHANGED) { + lv_btnmatrix_set_map(obj, btnm->map_p); + } + else if(code == LV_EVENT_SIZE_CHANGED) { + lv_btnmatrix_set_map(obj, btnm->map_p); + } + else if(code == LV_EVENT_PRESSED) { + void * param = lv_event_get_param(e); + invalidate_button_area(obj, btnm->btn_id_sel); + + lv_indev_type_t indev_type = lv_indev_get_type(lv_indev_get_act()); + if(indev_type == LV_INDEV_TYPE_POINTER || indev_type == LV_INDEV_TYPE_BUTTON) { + uint16_t btn_pr; + /*Search the pressed area*/ + lv_indev_get_point(param, &p); + btn_pr = get_button_from_point(obj, &p); + /*Handle the case where there is no button there*/ + if(btn_pr != LV_BTNMATRIX_BTN_NONE) { + if(button_is_inactive(btnm->ctrl_bits[btn_pr]) == false && + button_is_hidden(btnm->ctrl_bits[btn_pr]) == false) { + btnm->btn_id_sel = btn_pr; + invalidate_button_area(obj, btnm->btn_id_sel); /*Invalidate the new area*/ + } + } + } + + if(btnm->btn_id_sel != LV_BTNMATRIX_BTN_NONE) { + if(button_is_click_trig(btnm->ctrl_bits[btnm->btn_id_sel]) == false && + button_is_popover(btnm->ctrl_bits[btnm->btn_id_sel]) == false && + button_is_inactive(btnm->ctrl_bits[btnm->btn_id_sel]) == false && + button_is_hidden(btnm->ctrl_bits[btnm->btn_id_sel]) == false) { + uint32_t b = btnm->btn_id_sel; + res = lv_event_send(obj, LV_EVENT_VALUE_CHANGED, &b); + if(res != LV_RES_OK) return; + } + } + } + else if(code == LV_EVENT_PRESSING) { + void * param = lv_event_get_param(e); + uint16_t btn_pr = LV_BTNMATRIX_BTN_NONE; + /*Search the pressed area*/ + lv_indev_t * indev = lv_indev_get_act(); + lv_indev_type_t indev_type = lv_indev_get_type(indev); + if(indev_type == LV_INDEV_TYPE_ENCODER || indev_type == LV_INDEV_TYPE_KEYPAD) return; + + lv_indev_get_point(indev, &p); + btn_pr = get_button_from_point(obj, &p); + /*Invalidate to old and the new areas*/ + if(btn_pr != btnm->btn_id_sel) { + if(btnm->btn_id_sel != LV_BTNMATRIX_BTN_NONE) { + invalidate_button_area(obj, btnm->btn_id_sel); + } + + btnm->btn_id_sel = btn_pr; + + lv_indev_reset_long_press(param); /*Start the log press time again on the new button*/ + if(btn_pr != LV_BTNMATRIX_BTN_NONE && + button_is_inactive(btnm->ctrl_bits[btn_pr]) == false && + button_is_hidden(btnm->ctrl_bits[btn_pr]) == false) { + invalidate_button_area(obj, btn_pr); + /*Send VALUE_CHANGED for the newly pressed button*/ + if(button_is_click_trig(btnm->ctrl_bits[btn_pr]) == false && + button_is_popover(btnm->ctrl_bits[btnm->btn_id_sel]) == false) { + uint32_t b = btn_pr; + res = lv_event_send(obj, LV_EVENT_VALUE_CHANGED, &b); + if(res != LV_RES_OK) return; + } + } + } + } + else if(code == LV_EVENT_RELEASED) { + if(btnm->btn_id_sel != LV_BTNMATRIX_BTN_NONE) { + /*Toggle the button if enabled*/ + if(button_is_checkable(btnm->ctrl_bits[btnm->btn_id_sel]) && + !button_is_inactive(btnm->ctrl_bits[btnm->btn_id_sel])) { + if(button_get_checked(btnm->ctrl_bits[btnm->btn_id_sel]) && !btnm->one_check) { + btnm->ctrl_bits[btnm->btn_id_sel] &= (~LV_BTNMATRIX_CTRL_CHECKED); + } + else { + btnm->ctrl_bits[btnm->btn_id_sel] |= LV_BTNMATRIX_CTRL_CHECKED; + } + if(btnm->one_check) make_one_button_checked(obj, btnm->btn_id_sel); + } + + + if((button_is_click_trig(btnm->ctrl_bits[btnm->btn_id_sel]) == true || + button_is_popover(btnm->ctrl_bits[btnm->btn_id_sel]) == true) && + button_is_inactive(btnm->ctrl_bits[btnm->btn_id_sel]) == false && + button_is_hidden(btnm->ctrl_bits[btnm->btn_id_sel]) == false) { + uint32_t b = btnm->btn_id_sel; + res = lv_event_send(obj, LV_EVENT_VALUE_CHANGED, &b); + if(res != LV_RES_OK) return; + } + } + + /*Invalidate to old pressed area*/; + invalidate_button_area(obj, btnm->btn_id_sel); + + } + else if(code == LV_EVENT_LONG_PRESSED_REPEAT) { + if(btnm->btn_id_sel != LV_BTNMATRIX_BTN_NONE) { + if(button_is_repeat_disabled(btnm->ctrl_bits[btnm->btn_id_sel]) == false && + button_is_inactive(btnm->ctrl_bits[btnm->btn_id_sel]) == false && + button_is_hidden(btnm->ctrl_bits[btnm->btn_id_sel]) == false) { + uint32_t b = btnm->btn_id_sel; + res = lv_event_send(obj, LV_EVENT_VALUE_CHANGED, &b); + if(res != LV_RES_OK) return; + } + } + } + else if(code == LV_EVENT_PRESS_LOST) { + invalidate_button_area(obj, btnm->btn_id_sel); + btnm->btn_id_sel = LV_BTNMATRIX_BTN_NONE; + } + else if(code == LV_EVENT_FOCUSED) { + lv_indev_t * indev = lv_event_get_param(e); + lv_indev_type_t indev_type = lv_indev_get_type(indev); + + /*If not focused by an input device assume the last input device*/ + if(indev == NULL) { + indev = lv_indev_get_next(NULL); + indev_type = lv_indev_get_type(indev); + } + + bool editing = lv_group_get_editing(lv_obj_get_group(obj)); + /*Focus the first button if there is not selected button*/ + if(btnm->btn_id_sel == LV_BTNMATRIX_BTN_NONE) { + if(indev_type == LV_INDEV_TYPE_KEYPAD || (indev_type == LV_INDEV_TYPE_ENCODER && editing)) { + uint32_t b = 0; + if(btnm->one_check) { + while(button_is_hidden(btnm->ctrl_bits[b]) || button_is_inactive(btnm->ctrl_bits[b]) || + button_is_checked(btnm->ctrl_bits[b]) == false) b++; + } + else { + while(button_is_hidden(btnm->ctrl_bits[b]) || button_is_inactive(btnm->ctrl_bits[b])) b++; + } + + btnm->btn_id_sel = b; + } + else { + btnm->btn_id_sel = LV_BTNMATRIX_BTN_NONE; + } + } + } + else if(code == LV_EVENT_DEFOCUSED || code == LV_EVENT_LEAVE) { + if(btnm->btn_id_sel != LV_BTNMATRIX_BTN_NONE) invalidate_button_area(obj, btnm->btn_id_sel); + btnm->btn_id_sel = LV_BTNMATRIX_BTN_NONE; + } + else if(code == LV_EVENT_KEY) { + + invalidate_button_area(obj, btnm->btn_id_sel); + + char c = *((char *)lv_event_get_param(e)); + if(c == LV_KEY_RIGHT) { + if(btnm->btn_id_sel == LV_BTNMATRIX_BTN_NONE) btnm->btn_id_sel = 0; + else btnm->btn_id_sel++; + if(btnm->btn_id_sel >= btnm->btn_cnt) btnm->btn_id_sel = 0; + + while(button_is_hidden(btnm->ctrl_bits[btnm->btn_id_sel]) || button_is_inactive(btnm->ctrl_bits[btnm->btn_id_sel])) { + btnm->btn_id_sel++; + if(btnm->btn_id_sel >= btnm->btn_cnt) btnm->btn_id_sel = 0; + } + } + else if(c == LV_KEY_LEFT) { + if(btnm->btn_id_sel == LV_BTNMATRIX_BTN_NONE) btnm->btn_id_sel = 0; + + if(btnm->btn_id_sel == 0) btnm->btn_id_sel = btnm->btn_cnt - 1; + else if(btnm->btn_id_sel > 0) btnm->btn_id_sel--; + + while(button_is_hidden(btnm->ctrl_bits[btnm->btn_id_sel]) || button_is_inactive(btnm->ctrl_bits[btnm->btn_id_sel])) { + if(btnm->btn_id_sel > 0) btnm->btn_id_sel--; + else btnm->btn_id_sel = btnm->btn_cnt - 1; + } + } + else if(c == LV_KEY_DOWN) { + lv_coord_t col_gap = lv_obj_get_style_pad_column(obj, LV_PART_MAIN); + /*Find the area below the current*/ + if(btnm->btn_id_sel == LV_BTNMATRIX_BTN_NONE) { + btnm->btn_id_sel = 0; + while(button_is_hidden(btnm->ctrl_bits[btnm->btn_id_sel]) || button_is_inactive(btnm->ctrl_bits[btnm->btn_id_sel])) { + btnm->btn_id_sel++; + if(btnm->btn_id_sel >= btnm->btn_cnt) btnm->btn_id_sel = 0; + } + } + else { + uint16_t area_below; + lv_coord_t pr_center = + btnm->button_areas[btnm->btn_id_sel].x1 + (lv_area_get_width(&btnm->button_areas[btnm->btn_id_sel]) >> 1); + + for(area_below = btnm->btn_id_sel; area_below < btnm->btn_cnt; area_below++) { + if(btnm->button_areas[area_below].y1 > btnm->button_areas[btnm->btn_id_sel].y1 && + pr_center >= btnm->button_areas[area_below].x1 && + pr_center <= btnm->button_areas[area_below].x2 + col_gap && + button_is_inactive(btnm->ctrl_bits[area_below]) == false && + button_is_hidden(btnm->ctrl_bits[area_below]) == false) { + break; + } + } + + if(area_below < btnm->btn_cnt) btnm->btn_id_sel = area_below; + } + } + else if(c == LV_KEY_UP) { + lv_coord_t col_gap = lv_obj_get_style_pad_column(obj, LV_PART_MAIN); + /*Find the area below the current*/ + if(btnm->btn_id_sel == LV_BTNMATRIX_BTN_NONE) { + btnm->btn_id_sel = 0; + while(button_is_hidden(btnm->ctrl_bits[btnm->btn_id_sel]) || button_is_inactive(btnm->ctrl_bits[btnm->btn_id_sel])) { + btnm->btn_id_sel++; + if(btnm->btn_id_sel >= btnm->btn_cnt) btnm->btn_id_sel = 0; + } + } + else { + int16_t area_above; + lv_coord_t pr_center = + btnm->button_areas[btnm->btn_id_sel].x1 + (lv_area_get_width(&btnm->button_areas[btnm->btn_id_sel]) >> 1); + + for(area_above = btnm->btn_id_sel; area_above >= 0; area_above--) { + if(btnm->button_areas[area_above].y1 < btnm->button_areas[btnm->btn_id_sel].y1 && + pr_center >= btnm->button_areas[area_above].x1 - col_gap && + pr_center <= btnm->button_areas[area_above].x2 && + button_is_inactive(btnm->ctrl_bits[area_above]) == false && + button_is_hidden(btnm->ctrl_bits[area_above]) == false) { + break; + } + } + if(area_above >= 0) btnm->btn_id_sel = area_above; + } + } + + invalidate_button_area(obj, btnm->btn_id_sel); + } + else if(code == LV_EVENT_DRAW_MAIN) { + draw_main(e); + } + +} + +static void draw_main(lv_event_t * e) +{ + lv_obj_t * obj = lv_event_get_target(e); + lv_btnmatrix_t * btnm = (lv_btnmatrix_t *)obj; + if(btnm->btn_cnt == 0) return; + + lv_draw_ctx_t * draw_ctx = lv_event_get_draw_ctx(e); + obj->skip_trans = 1; + + lv_area_t area_obj; + lv_obj_get_coords(obj, &area_obj); + + lv_area_t btn_area; + + uint16_t btn_i = 0; + uint16_t txt_i = 0; + + lv_draw_rect_dsc_t draw_rect_dsc_act; + lv_draw_label_dsc_t draw_label_dsc_act; + + lv_draw_rect_dsc_t draw_rect_dsc_def; + lv_draw_label_dsc_t draw_label_dsc_def; + + lv_state_t state_ori = obj->state; + obj->state = LV_STATE_DEFAULT; + obj->skip_trans = 1; + lv_draw_rect_dsc_init(&draw_rect_dsc_def); + lv_draw_label_dsc_init(&draw_label_dsc_def); + lv_obj_init_draw_rect_dsc(obj, LV_PART_ITEMS, &draw_rect_dsc_def); + lv_obj_init_draw_label_dsc(obj, LV_PART_ITEMS, &draw_label_dsc_def); + obj->skip_trans = 0; + obj->state = state_ori; + + lv_coord_t ptop = lv_obj_get_style_pad_top(obj, LV_PART_MAIN); + lv_coord_t pbottom = lv_obj_get_style_pad_bottom(obj, LV_PART_MAIN); + lv_coord_t pleft = lv_obj_get_style_pad_left(obj, LV_PART_MAIN); + lv_coord_t pright = lv_obj_get_style_pad_right(obj, LV_PART_MAIN); + +#if LV_USE_ARABIC_PERSIAN_CHARS + const size_t txt_ap_size = 256 ; + char * txt_ap = lv_mem_buf_get(txt_ap_size); +#endif + + lv_obj_draw_part_dsc_t part_draw_dsc; + lv_obj_draw_dsc_init(&part_draw_dsc, draw_ctx); + part_draw_dsc.part = LV_PART_ITEMS; + part_draw_dsc.class_p = MY_CLASS; + part_draw_dsc.type = LV_BTNMATRIX_DRAW_PART_BTN; + part_draw_dsc.rect_dsc = &draw_rect_dsc_act; + part_draw_dsc.label_dsc = &draw_label_dsc_act; + + for(btn_i = 0; btn_i < btnm->btn_cnt; btn_i++, txt_i++) { + /*Search the next valid text in the map*/ + while(strcmp(btnm->map_p[txt_i], "\n") == 0) { + txt_i++; + } + + /*Skip hidden buttons*/ + if(button_is_hidden(btnm->ctrl_bits[btn_i])) continue; + + /*Get the state of the button*/ + lv_state_t btn_state = LV_STATE_DEFAULT; + if(button_get_checked(btnm->ctrl_bits[btn_i])) btn_state |= LV_STATE_CHECKED; + + if(button_is_inactive(btnm->ctrl_bits[btn_i])) btn_state |= LV_STATE_DISABLED; + else if(btn_i == btnm->btn_id_sel) { + if(state_ori & LV_STATE_PRESSED) btn_state |= LV_STATE_PRESSED; + if(state_ori & LV_STATE_FOCUSED) btn_state |= LV_STATE_FOCUSED; + if(state_ori & LV_STATE_FOCUS_KEY) btn_state |= LV_STATE_FOCUS_KEY; + if(state_ori & LV_STATE_EDITED) btn_state |= LV_STATE_EDITED; + } + + /*Get the button's area*/ + lv_area_copy(&btn_area, &btnm->button_areas[btn_i]); + btn_area.x1 += area_obj.x1; + btn_area.y1 += area_obj.y1; + btn_area.x2 += area_obj.x1; + btn_area.y2 += area_obj.y1; + + /*Set up the draw descriptors*/ + if(btn_state == LV_STATE_DEFAULT) { + lv_memcpy(&draw_rect_dsc_act, &draw_rect_dsc_def, sizeof(lv_draw_rect_dsc_t)); + lv_memcpy(&draw_label_dsc_act, &draw_label_dsc_def, sizeof(lv_draw_label_dsc_t)); + } + /*In other cases get the styles directly without caching them*/ + else { + obj->state = btn_state; + obj->skip_trans = 1; + lv_draw_rect_dsc_init(&draw_rect_dsc_act); + lv_draw_label_dsc_init(&draw_label_dsc_act); + lv_obj_init_draw_rect_dsc(obj, LV_PART_ITEMS, &draw_rect_dsc_act); + lv_obj_init_draw_label_dsc(obj, LV_PART_ITEMS, &draw_label_dsc_act); + obj->state = state_ori; + obj->skip_trans = 0; + } + + bool recolor = button_is_recolor(btnm->ctrl_bits[btn_i]); + if(recolor) draw_label_dsc_act.flag |= LV_TEXT_FLAG_RECOLOR; + else draw_label_dsc_act.flag &= ~LV_TEXT_FLAG_RECOLOR; + + + part_draw_dsc.draw_area = &btn_area; + part_draw_dsc.id = btn_i; + lv_event_send(obj, LV_EVENT_DRAW_PART_BEGIN, &part_draw_dsc); + + /*Remove borders on the edges if `LV_BORDER_SIDE_INTERNAL`*/ + if(draw_rect_dsc_act.border_side & LV_BORDER_SIDE_INTERNAL) { + draw_rect_dsc_act.border_side = LV_BORDER_SIDE_FULL; + if(btn_area.x1 == obj->coords.x1 + pleft) draw_rect_dsc_act.border_side &= ~LV_BORDER_SIDE_LEFT; + if(btn_area.x2 == obj->coords.x2 - pright) draw_rect_dsc_act.border_side &= ~LV_BORDER_SIDE_RIGHT; + if(btn_area.y1 == obj->coords.y1 + ptop) draw_rect_dsc_act.border_side &= ~LV_BORDER_SIDE_TOP; + if(btn_area.y2 == obj->coords.y2 - pbottom) draw_rect_dsc_act.border_side &= ~LV_BORDER_SIDE_BOTTOM; + } + + lv_coord_t btn_height = lv_area_get_height(&btn_area); + + if((btn_state & LV_STATE_PRESSED) && (btnm->ctrl_bits[btn_i] & LV_BTNMATRIX_CTRL_POPOVER)) { + /*Push up the upper boundary of the btn area to create the popover*/ + btn_area.y1 -= btn_height; + } + + /*Draw the background*/ + lv_draw_rect(draw_ctx, &draw_rect_dsc_act, &btn_area); + + /*Calculate the size of the text*/ + const lv_font_t * font = draw_label_dsc_act.font; + lv_coord_t letter_space = draw_label_dsc_act.letter_space; + lv_coord_t line_space = draw_label_dsc_act.line_space; + const char * txt = btnm->map_p[txt_i]; + +#if LV_USE_ARABIC_PERSIAN_CHARS + /*Get the size of the Arabic text and process it*/ + size_t len_ap = _lv_txt_ap_calc_bytes_cnt(txt); + if(len_ap < txt_ap_size) { + _lv_txt_ap_proc(txt, txt_ap); + txt = txt_ap; + } +#endif + lv_point_t txt_size; + lv_txt_get_size(&txt_size, txt, font, letter_space, + line_space, lv_area_get_width(&area_obj), draw_label_dsc_act.flag); + + btn_area.x1 += (lv_area_get_width(&btn_area) - txt_size.x) / 2; + btn_area.y1 += (lv_area_get_height(&btn_area) - txt_size.y) / 2; + btn_area.x2 = btn_area.x1 + txt_size.x; + btn_area.y2 = btn_area.y1 + txt_size.y; + + if((btn_state & LV_STATE_PRESSED) && (btnm->ctrl_bits[btn_i] & LV_BTNMATRIX_CTRL_POPOVER)) { + /*Push up the button text into the popover*/ + btn_area.y1 -= btn_height / 2; + btn_area.y2 -= btn_height / 2; + } + + /*Draw the text*/ + lv_draw_label(draw_ctx, &draw_label_dsc_act, &btn_area, txt, NULL); + + lv_event_send(obj, LV_EVENT_DRAW_PART_END, &part_draw_dsc); + } + + obj->skip_trans = 0; +#if LV_USE_ARABIC_PERSIAN_CHARS + lv_mem_buf_release(txt_ap); +#endif +} +/** + * Create the required number of buttons and control bytes according to a map + * @param obj pointer to button matrix object + * @param map_p pointer to a string array + */ +static void allocate_btn_areas_and_controls(const lv_obj_t * obj, const char ** map) +{ + lv_btnmatrix_t * btnm = (lv_btnmatrix_t *)obj; + btnm->row_cnt = 1; + /*Count the buttons in the map*/ + uint16_t btn_cnt = 0; + uint16_t i = 0; + while(map[i] && map[i][0] != '\0') { + if(strcmp(map[i], "\n") != 0) { /*Do not count line breaks*/ + btn_cnt++; + } + else { + btnm->row_cnt++; + } + i++; + } + + /*Do not allocate memory for the same amount of buttons*/ + if(btn_cnt == btnm->btn_cnt) return; + + if(btnm->button_areas != NULL) { + lv_mem_free(btnm->button_areas); + btnm->button_areas = NULL; + } + if(btnm->ctrl_bits != NULL) { + lv_mem_free(btnm->ctrl_bits); + btnm->ctrl_bits = NULL; + } + + btnm->button_areas = lv_mem_alloc(sizeof(lv_area_t) * btn_cnt); + LV_ASSERT_MALLOC(btnm->button_areas); + btnm->ctrl_bits = lv_mem_alloc(sizeof(lv_btnmatrix_ctrl_t) * btn_cnt); + LV_ASSERT_MALLOC(btnm->ctrl_bits); + if(btnm->button_areas == NULL || btnm->ctrl_bits == NULL) btn_cnt = 0; + + lv_memset_00(btnm->ctrl_bits, sizeof(lv_btnmatrix_ctrl_t) * btn_cnt); + + btnm->btn_cnt = btn_cnt; +} + +/** + * Get the width of a button in units (default is 1). + * @param ctrl_bits least significant 3 bits used (1..7 valid values) + * @return the width of the button in units + */ +static uint8_t get_button_width(lv_btnmatrix_ctrl_t ctrl_bits) +{ + uint8_t w = ctrl_bits & LV_BTNMATRIX_WIDTH_MASK; + return w != 0 ? w : 1; +} + +static bool button_is_hidden(lv_btnmatrix_ctrl_t ctrl_bits) +{ + return (ctrl_bits & LV_BTNMATRIX_CTRL_HIDDEN) ? true : false; +} + +static bool button_is_checked(lv_btnmatrix_ctrl_t ctrl_bits) +{ + return (ctrl_bits & LV_BTNMATRIX_CTRL_CHECKED) ? true : false; +} + +static bool button_is_repeat_disabled(lv_btnmatrix_ctrl_t ctrl_bits) +{ + return (ctrl_bits & LV_BTNMATRIX_CTRL_NO_REPEAT) ? true : false; +} + +static bool button_is_inactive(lv_btnmatrix_ctrl_t ctrl_bits) +{ + return (ctrl_bits & LV_BTNMATRIX_CTRL_DISABLED) ? true : false; +} + +static bool button_is_click_trig(lv_btnmatrix_ctrl_t ctrl_bits) +{ + return (ctrl_bits & LV_BTNMATRIX_CTRL_CLICK_TRIG) ? true : false; +} + +static bool button_is_popover(lv_btnmatrix_ctrl_t ctrl_bits) +{ + return (ctrl_bits & LV_BTNMATRIX_CTRL_POPOVER) ? true : false; +} + +static bool button_is_checkable(lv_btnmatrix_ctrl_t ctrl_bits) +{ + return (ctrl_bits & LV_BTNMATRIX_CTRL_CHECKABLE) ? true : false; +} + +static bool button_get_checked(lv_btnmatrix_ctrl_t ctrl_bits) +{ + return (ctrl_bits & LV_BTNMATRIX_CTRL_CHECKED) ? true : false; +} + +static bool button_is_recolor(lv_btnmatrix_ctrl_t ctrl_bits) +{ + return (ctrl_bits & LV_BTNMATRIX_CTRL_RECOLOR) ? true : false; +} +/** + * Gives the button id of a button under a given point + * @param obj pointer to a button matrix object + * @param p a point with absolute coordinates + * @return the id of the button or LV_BTNMATRIX_BTN_NONE. + */ +static uint16_t get_button_from_point(lv_obj_t * obj, lv_point_t * p) +{ + lv_area_t obj_cords; + lv_area_t btn_area; + lv_btnmatrix_t * btnm = (lv_btnmatrix_t *)obj;; + uint16_t i; + lv_obj_get_coords(obj, &obj_cords); + + lv_coord_t w = lv_obj_get_width(obj); + lv_coord_t h = lv_obj_get_height(obj); + lv_coord_t pleft = lv_obj_get_style_pad_left(obj, LV_PART_MAIN); + lv_coord_t pright = lv_obj_get_style_pad_right(obj, LV_PART_MAIN); + lv_coord_t ptop = lv_obj_get_style_pad_top(obj, LV_PART_MAIN); + lv_coord_t pbottom = lv_obj_get_style_pad_bottom(obj, LV_PART_MAIN); + lv_coord_t prow = lv_obj_get_style_pad_row(obj, LV_PART_MAIN); + lv_coord_t pcol = lv_obj_get_style_pad_column(obj, LV_PART_MAIN); + + /*Get the half gap. Button look larger with this value. (+1 for rounding error)*/ + prow = (prow / 2) + 1 + (prow & 1); + pcol = (pcol / 2) + 1 + (pcol & 1); + + prow = LV_MIN(prow, BTN_EXTRA_CLICK_AREA_MAX); + pcol = LV_MIN(pcol, BTN_EXTRA_CLICK_AREA_MAX); + pright = LV_MIN(pright, BTN_EXTRA_CLICK_AREA_MAX); + ptop = LV_MIN(ptop, BTN_EXTRA_CLICK_AREA_MAX); + pbottom = LV_MIN(pbottom, BTN_EXTRA_CLICK_AREA_MAX); + + for(i = 0; i < btnm->btn_cnt; i++) { + lv_area_copy(&btn_area, &btnm->button_areas[i]); + if(btn_area.x1 <= pleft) btn_area.x1 += obj_cords.x1 - LV_MIN(pleft, BTN_EXTRA_CLICK_AREA_MAX); + else btn_area.x1 += obj_cords.x1 - pcol; + + if(btn_area.y1 <= ptop) btn_area.y1 += obj_cords.y1 - LV_MIN(ptop, BTN_EXTRA_CLICK_AREA_MAX); + else btn_area.y1 += obj_cords.y1 - prow; + + if(btn_area.x2 >= w - pright - 2) btn_area.x2 += obj_cords.x1 + LV_MIN(pright, + BTN_EXTRA_CLICK_AREA_MAX); /*-2 for rounding error*/ + else btn_area.x2 += obj_cords.x1 + pcol; + + if(btn_area.y2 >= h - pbottom - 2) btn_area.y2 += obj_cords.y1 + LV_MIN(pbottom, + BTN_EXTRA_CLICK_AREA_MAX); /*-2 for rounding error*/ + else btn_area.y2 += obj_cords.y1 + prow; + + if(_lv_area_is_point_on(&btn_area, p, 0) != false) { + break; + } + } + + if(i == btnm->btn_cnt) i = LV_BTNMATRIX_BTN_NONE; + + return i; +} + +static void invalidate_button_area(const lv_obj_t * obj, uint16_t btn_idx) +{ + if(btn_idx == LV_BTNMATRIX_BTN_NONE) return; + + lv_area_t btn_area; + lv_area_t obj_area; + + lv_btnmatrix_t * btnm = (lv_btnmatrix_t *)obj;; + if(btn_idx >= btnm->btn_cnt) return; + + lv_area_copy(&btn_area, &btnm->button_areas[btn_idx]); + lv_obj_get_coords(obj, &obj_area); + + /*The buttons might have outline and shadow so make the invalidation larger with the gaps between the buttons. + *It assumes that the outline or shadow is smaller than the gaps*/ + lv_coord_t row_gap = lv_obj_get_style_pad_row(obj, LV_PART_MAIN); + lv_coord_t col_gap = lv_obj_get_style_pad_column(obj, LV_PART_MAIN); + + /*Be sure to have a minimal extra space if row/col_gap is small*/ + lv_coord_t dpi = lv_disp_get_dpi(lv_obj_get_disp(obj)); + row_gap = LV_MAX(row_gap, dpi / 10); + col_gap = LV_MAX(col_gap, dpi / 10); + + /*Convert relative coordinates to absolute*/ + btn_area.x1 += obj_area.x1 - row_gap; + btn_area.y1 += obj_area.y1 - col_gap; + btn_area.x2 += obj_area.x1 + row_gap; + btn_area.y2 += obj_area.y1 + col_gap; + + if((btn_idx == btnm->btn_id_sel) && (btnm->ctrl_bits[btn_idx] & LV_BTNMATRIX_CTRL_POPOVER)) { + /*Push up the upper boundary of the btn area to also invalidate the popover*/ + btn_area.y1 -= lv_area_get_height(&btn_area); + } + + lv_obj_invalidate_area(obj, &btn_area); +} + +/** + * Enforces a single button being toggled on the button matrix. + * It simply clears the toggle flag on other buttons. + * @param obj Button matrix object + * @param btn_idx Button that should remain toggled + */ +static void make_one_button_checked(lv_obj_t * obj, uint16_t btn_idx) +{ + /*Save whether the button was toggled*/ + bool was_toggled = lv_btnmatrix_has_btn_ctrl(obj, btn_idx, LV_BTNMATRIX_CTRL_CHECKED); + + lv_btnmatrix_clear_btn_ctrl_all(obj, LV_BTNMATRIX_CTRL_CHECKED); + + if(was_toggled) lv_btnmatrix_set_btn_ctrl(obj, btn_idx, LV_BTNMATRIX_CTRL_CHECKED); +} + +/** + * Check if any of the buttons in the first row has the LV_BTNMATRIX_CTRL_POPOVER control flag set. + * @param obj Button matrix object + * @return true if at least one button has the flag, false otherwise + */ +static bool has_popovers_in_top_row(lv_obj_t * obj) +{ + lv_btnmatrix_t * btnm = (lv_btnmatrix_t *)obj; + + if(btnm->row_cnt <= 0) { + return false; + } + + const char ** map_row = btnm->map_p; + uint16_t btn_cnt = 0; + + while(map_row[btn_cnt] && strcmp(map_row[btn_cnt], "\n") != 0 && map_row[btn_cnt][0] != '\0') { + if(button_is_popover(btnm->ctrl_bits[btn_cnt])) { + return true; + } + btn_cnt++; + } + + return false; +} + +#endif diff --git a/lib/lvgl/src/widgets/lv_btnmatrix.h b/lib/lvgl/src/widgets/lv_btnmatrix.h new file mode 100644 index 00000000..780d57b6 --- /dev/null +++ b/lib/lvgl/src/widgets/lv_btnmatrix.h @@ -0,0 +1,225 @@ +/** + * @file lv_btnmatrix.h + * + */ + +#ifndef LV_BTNMATRIX_H +#define LV_BTNMATRIX_H + +#ifdef __cplusplus +extern "C" { +#endif + +/********************* + * INCLUDES + *********************/ +#include "../lv_conf_internal.h" + +#if LV_USE_BTNMATRIX != 0 + +#include "../core/lv_obj.h" + +/********************* + * DEFINES + *********************/ +#define LV_BTNMATRIX_BTN_NONE 0xFFFF +LV_EXPORT_CONST_INT(LV_BTNMATRIX_BTN_NONE); + +/********************** + * TYPEDEFS + **********************/ + +/** Type to store button control bits (disabled, hidden etc.) + * The first 3 bits are used to store the width*/ +enum { + _LV_BTNMATRIX_WIDTH = 0x0007, /**< Reserved to stire the size units*/ + LV_BTNMATRIX_CTRL_HIDDEN = 0x0008, /**< Button hidden*/ + LV_BTNMATRIX_CTRL_NO_REPEAT = 0x0010, /**< Do not repeat press this button.*/ + LV_BTNMATRIX_CTRL_DISABLED = 0x0020, /**< Disable this button.*/ + LV_BTNMATRIX_CTRL_CHECKABLE = 0x0040, /**< The button can be toggled.*/ + LV_BTNMATRIX_CTRL_CHECKED = 0x0080, /**< Button is currently toggled (e.g. checked).*/ + LV_BTNMATRIX_CTRL_CLICK_TRIG = 0x0100, /**< 1: Send LV_EVENT_VALUE_CHANGE on CLICK, 0: Send LV_EVENT_VALUE_CHANGE on PRESS*/ + LV_BTNMATRIX_CTRL_POPOVER = 0x0200, /**< Show a popover when pressing this key*/ + LV_BTNMATRIX_CTRL_RECOLOR = 0x1000, /**< Enable text recoloring with `#color`*/ + _LV_BTNMATRIX_CTRL_RESERVED = 0x2000, /**< Reserved for later use*/ + LV_BTNMATRIX_CTRL_CUSTOM_1 = 0x4000, /**< Custom free to use flag*/ + LV_BTNMATRIX_CTRL_CUSTOM_2 = 0x8000, /**< Custom free to use flag*/ +}; + +typedef uint16_t lv_btnmatrix_ctrl_t; + +typedef bool (*lv_btnmatrix_btn_draw_cb_t)(lv_obj_t * btnm, uint32_t btn_id, const lv_area_t * draw_area, + const lv_area_t * clip_area); + +/*Data of button matrix*/ +typedef struct { + lv_obj_t obj; + const char ** map_p; /*Pointer to the current map*/ + lv_area_t * button_areas; /*Array of areas of buttons*/ + lv_btnmatrix_ctrl_t * ctrl_bits; /*Array of control bytes*/ + uint16_t btn_cnt; /*Number of button in 'map_p'(Handled by the library)*/ + uint16_t row_cnt; /*Number of rows in 'map_p'(Handled by the library)*/ + uint16_t btn_id_sel; /*Index of the active button (being pressed/released etc) or LV_BTNMATRIX_BTN_NONE*/ + uint8_t one_check : 1; /*Single button toggled at once*/ +} lv_btnmatrix_t; + +extern const lv_obj_class_t lv_btnmatrix_class; + +/** + * `type` field in `lv_obj_draw_part_dsc_t` if `class_p = lv_btnmatrix_class` + * Used in `LV_EVENT_DRAW_PART_BEGIN` and `LV_EVENT_DRAW_PART_END` + */ +typedef enum { + LV_BTNMATRIX_DRAW_PART_BTN, /**< The rectangle and label of buttons*/ +} lv_btnmatrix_draw_part_type_t; + +/********************** + * GLOBAL PROTOTYPES + **********************/ + +/** + * Create a button matrix object + * @param parent pointer to an object, it will be the parent of the new button matrix + * @return pointer to the created button matrix + */ +lv_obj_t * lv_btnmatrix_create(lv_obj_t * parent); + +/*===================== + * Setter functions + *====================*/ + +/** + * Set a new map. Buttons will be created/deleted according to the map. The + * button matrix keeps a reference to the map and so the string array must not + * be deallocated during the life of the matrix. + * @param obj pointer to a button matrix object + * @param map pointer a string array. The last string has to be: "". Use "\n" to make a line break. + */ +void lv_btnmatrix_set_map(lv_obj_t * obj, const char * map[]); + +/** + * Set the button control map (hidden, disabled etc.) for a button matrix. + * The control map array will be copied and so may be deallocated after this + * function returns. + * @param obj pointer to a button matrix object + * @param ctrl_map pointer to an array of `lv_btn_ctrl_t` control bytes. The + * length of the array and position of the elements must match + * the number and order of the individual buttons (i.e. excludes + * newline entries). + * An element of the map should look like e.g.: + * `ctrl_map[0] = width | LV_BTNMATRIX_CTRL_NO_REPEAT | LV_BTNMATRIX_CTRL_TGL_ENABLE` + */ +void lv_btnmatrix_set_ctrl_map(lv_obj_t * obj, const lv_btnmatrix_ctrl_t ctrl_map[]); + +/** + * Set the selected buttons + * @param obj pointer to button matrix object + * @param btn_id 0 based index of the button to modify. (Not counting new lines) + */ +void lv_btnmatrix_set_selected_btn(lv_obj_t * obj, uint16_t btn_id); + +/** + * Set the attributes of a button of the button matrix + * @param obj pointer to button matrix object + * @param btn_id 0 based index of the button to modify. (Not counting new lines) + * @param ctrl OR-ed attributs. E.g. `LV_BTNMATRIX_CTRL_NO_REPEAT | LV_BTNMATRIX_CTRL_CHECKABLE` + */ +void lv_btnmatrix_set_btn_ctrl(lv_obj_t * obj, uint16_t btn_id, lv_btnmatrix_ctrl_t ctrl); + +/** + * Clear the attributes of a button of the button matrix + * @param obj pointer to button matrix object + * @param btn_id 0 based index of the button to modify. (Not counting new lines) + * @param ctrl OR-ed attributs. E.g. `LV_BTNMATRIX_CTRL_NO_REPEAT | LV_BTNMATRIX_CTRL_CHECKABLE` + */ +void lv_btnmatrix_clear_btn_ctrl(lv_obj_t * obj, uint16_t btn_id, lv_btnmatrix_ctrl_t ctrl); + +/** + * Set attributes of all buttons of a button matrix + * @param obj pointer to a button matrix object + * @param ctrl attribute(s) to set from `lv_btnmatrix_ctrl_t`. Values can be ORed. + */ +void lv_btnmatrix_set_btn_ctrl_all(lv_obj_t * obj, lv_btnmatrix_ctrl_t ctrl); + +/** + * Clear the attributes of all buttons of a button matrix + * @param obj pointer to a button matrix object + * @param ctrl attribute(s) to set from `lv_btnmatrix_ctrl_t`. Values can be ORed. + * @param en true: set the attributes; false: clear the attributes + */ +void lv_btnmatrix_clear_btn_ctrl_all(lv_obj_t * obj, lv_btnmatrix_ctrl_t ctrl); + +/** + * Set a single button's relative width. + * This method will cause the matrix be regenerated and is a relatively + * expensive operation. It is recommended that initial width be specified using + * `lv_btnmatrix_set_ctrl_map` and this method only be used for dynamic changes. + * @param obj pointer to button matrix object + * @param btn_id 0 based index of the button to modify. + * @param width relative width compared to the buttons in the same row. [1..7] + */ +void lv_btnmatrix_set_btn_width(lv_obj_t * obj, uint16_t btn_id, uint8_t width); + +/** + * Make the button matrix like a selector widget (only one button may be checked at a time). + * `LV_BTNMATRIX_CTRL_CHECKABLE` must be enabled on the buttons to be selected using + * `lv_btnmatrix_set_ctrl()` or `lv_btnmatrix_set_btn_ctrl_all()`. + * @param obj pointer to a button matrix object + * @param en whether "one check" mode is enabled + */ +void lv_btnmatrix_set_one_checked(lv_obj_t * obj, bool en); + +/*===================== + * Getter functions + *====================*/ + +/** + * Get the current map of a button matrix + * @param obj pointer to a button matrix object + * @return the current map + */ +const char ** lv_btnmatrix_get_map(const lv_obj_t * obj); + +/** + * Get the index of the lastly "activated" button by the user (pressed, released, focused etc) + * Useful in the `event_cb` to get the text of the button, check if hidden etc. + * @param obj pointer to button matrix object + * @return index of the last released button (LV_BTNMATRIX_BTN_NONE: if unset) + */ +uint16_t lv_btnmatrix_get_selected_btn(const lv_obj_t * obj); + +/** + * Get the button's text + * @param obj pointer to button matrix object + * @param btn_id the index a button not counting new line characters. + * @return text of btn_index` button + */ +const char * lv_btnmatrix_get_btn_text(const lv_obj_t * obj, uint16_t btn_id); + +/** + * Get the whether a control value is enabled or disabled for button of a button matrix + * @param obj pointer to a button matrix object + * @param btn_id the index of a button not counting new line characters. + * @param ctrl control values to check (ORed value can be used) + * @return true: the control attribute is enabled false: disabled + */ +bool lv_btnmatrix_has_btn_ctrl(lv_obj_t * obj, uint16_t btn_id, lv_btnmatrix_ctrl_t ctrl); + +/** + * Tell whether "one check" mode is enabled or not. + * @param obj Button matrix object + * @return true: "one check" mode is enabled; false: disabled + */ +bool lv_btnmatrix_get_one_checked(const lv_obj_t * obj); + +/********************** + * MACROS + **********************/ + +#endif /*LV_USE_BTNMATRIX*/ + +#ifdef __cplusplus +} /*extern "C"*/ +#endif + +#endif /*LV_BTNMATRIX_H*/ diff --git a/lib/lvgl/src/widgets/lv_canvas.c b/lib/lvgl/src/widgets/lv_canvas.c new file mode 100644 index 00000000..1f949272 --- /dev/null +++ b/lib/lvgl/src/widgets/lv_canvas.c @@ -0,0 +1,836 @@ +/** + * @file lv_canvas.c + * + */ + +/********************* + * INCLUDES + *********************/ +#include "lv_canvas.h" +#include "../misc/lv_assert.h" +#include "../misc/lv_math.h" +#include "../draw/lv_draw.h" +#include "../core/lv_refr.h" + +#if LV_USE_CANVAS != 0 + +#include "../draw/sw/lv_draw_sw.h" + +/********************* + * DEFINES + *********************/ +#define MY_CLASS &lv_canvas_class + +/********************** + * TYPEDEFS + **********************/ + +/********************** + * STATIC PROTOTYPES + **********************/ +static void lv_canvas_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj); +static void lv_canvas_destructor(const lv_obj_class_t * class_p, lv_obj_t * obj); +static void init_fake_disp(lv_obj_t * canvas, lv_disp_t * disp, lv_disp_drv_t * drv, lv_area_t * clip_area); +static void deinit_fake_disp(lv_obj_t * canvas, lv_disp_t * disp); + +/********************** + * STATIC VARIABLES + **********************/ +const lv_obj_class_t lv_canvas_class = { + .constructor_cb = lv_canvas_constructor, + .destructor_cb = lv_canvas_destructor, + .instance_size = sizeof(lv_canvas_t), + .base_class = &lv_img_class +}; + +/********************** + * MACROS + **********************/ + +/********************** + * GLOBAL FUNCTIONS + **********************/ + +lv_obj_t * lv_canvas_create(lv_obj_t * parent) +{ + LV_LOG_INFO("begin"); + lv_obj_t * obj = lv_obj_class_create_obj(MY_CLASS, parent); + lv_obj_class_init_obj(obj); + return obj; +} + +/*===================== + * Setter functions + *====================*/ + +void lv_canvas_set_buffer(lv_obj_t * obj, void * buf, lv_coord_t w, lv_coord_t h, lv_img_cf_t cf) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + LV_ASSERT_NULL(buf); + + lv_canvas_t * canvas = (lv_canvas_t *)obj; + + canvas->dsc.header.cf = cf; + canvas->dsc.header.w = w; + canvas->dsc.header.h = h; + canvas->dsc.data = buf; + + lv_img_set_src(obj, &canvas->dsc); + lv_img_cache_invalidate_src(&canvas->dsc); +} + +void lv_canvas_set_px_color(lv_obj_t * obj, lv_coord_t x, lv_coord_t y, lv_color_t c) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_canvas_t * canvas = (lv_canvas_t *)obj; + + lv_img_buf_set_px_color(&canvas->dsc, x, y, c); + lv_obj_invalidate(obj); +} + +void lv_canvas_set_px_opa(lv_obj_t * obj, lv_coord_t x, lv_coord_t y, lv_opa_t opa) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_canvas_t * canvas = (lv_canvas_t *)obj; + + lv_img_buf_set_px_alpha(&canvas->dsc, x, y, opa); + lv_obj_invalidate(obj); +} + +void lv_canvas_set_palette(lv_obj_t * obj, uint8_t id, lv_color_t c) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_canvas_t * canvas = (lv_canvas_t *)obj; + + lv_img_buf_set_palette(&canvas->dsc, id, c); + lv_obj_invalidate(obj); +} + +/*===================== + * Getter functions + *====================*/ + +lv_color_t lv_canvas_get_px(lv_obj_t * obj, lv_coord_t x, lv_coord_t y) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_canvas_t * canvas = (lv_canvas_t *)obj; + lv_color_t color = lv_obj_get_style_img_recolor(obj, LV_PART_MAIN); + + return lv_img_buf_get_px_color(&canvas->dsc, x, y, color); +} + +lv_img_dsc_t * lv_canvas_get_img(lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_canvas_t * canvas = (lv_canvas_t *)obj; + return &canvas->dsc; +} + +/*===================== + * Other functions + *====================*/ + +void lv_canvas_copy_buf(lv_obj_t * obj, const void * to_copy, lv_coord_t x, lv_coord_t y, lv_coord_t w, lv_coord_t h) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + LV_ASSERT_NULL(to_copy); + + lv_canvas_t * canvas = (lv_canvas_t *)obj; + + if(x + w - 1 >= (lv_coord_t)canvas->dsc.header.w || y + h - 1 >= (lv_coord_t)canvas->dsc.header.h) { + LV_LOG_WARN("lv_canvas_copy_buf: x or y out of the canvas"); + return; + } + + uint32_t px_size = lv_img_cf_get_px_size(canvas->dsc.header.cf) >> 3; + uint32_t px = canvas->dsc.header.w * y * px_size + x * px_size; + uint8_t * to_copy8 = (uint8_t *)to_copy; + lv_coord_t i; + for(i = 0; i < h; i++) { + lv_memcpy((void *)&canvas->dsc.data[px], to_copy8, w * px_size); + px += canvas->dsc.header.w * px_size; + to_copy8 += w * px_size; + } +} + +void lv_canvas_transform(lv_obj_t * obj, lv_img_dsc_t * src_img, int16_t angle, uint16_t zoom, lv_coord_t offset_x, + lv_coord_t offset_y, + int32_t pivot_x, int32_t pivot_y, bool antialias) +{ +#if LV_DRAW_COMPLEX + LV_ASSERT_OBJ(obj, MY_CLASS); + LV_ASSERT_NULL(src_img); + + lv_canvas_t * canvas = (lv_canvas_t *)obj; + lv_img_dsc_t * dest_img = &canvas->dsc; + + int32_t x; + int32_t y; + + lv_draw_img_dsc_t draw_dsc; + lv_draw_img_dsc_init(&draw_dsc); + draw_dsc.angle = angle; + draw_dsc.zoom = zoom; + draw_dsc.pivot.x = pivot_x; + draw_dsc.pivot.y = pivot_y; + draw_dsc.antialias = antialias; + + lv_area_t dest_area; + dest_area.x1 = -offset_x; + dest_area.x2 = dest_area.x1 + dest_img->header.w - 1; + dest_area.y1 = -offset_y; + dest_area.y2 = -offset_y; + + lv_color_t * cbuf = lv_mem_alloc(dest_img->header.w * sizeof(lv_color_t)); + lv_opa_t * abuf = lv_mem_alloc(dest_img->header.w * sizeof(lv_opa_t)); + for(y = 0; y < dest_img->header.h; y++) { + if(y + offset_y >= 0) { + lv_draw_sw_transform(NULL, &dest_area, src_img->data, src_img->header.w, src_img->header.h, src_img->header.w, + &draw_dsc, canvas->dsc.header.cf, cbuf, abuf); + + for(x = 0; x < dest_img->header.w; x++) { + if(abuf[x]) { + lv_img_buf_set_px_color(dest_img, x, y, cbuf[x]); + lv_img_buf_set_px_alpha(dest_img, x, y, abuf[x]); + } + } + + dest_area.y1++; + dest_area.y2++; + } + } + lv_mem_free(cbuf); + lv_mem_free(abuf); + + lv_obj_invalidate(obj); + +#else + LV_UNUSED(obj); + LV_UNUSED(src_img); + LV_UNUSED(angle); + LV_UNUSED(zoom); + LV_UNUSED(offset_x); + LV_UNUSED(offset_y); + LV_UNUSED(pivot_x); + LV_UNUSED(pivot_y); + LV_UNUSED(antialias); + LV_LOG_WARN("Can't transform canvas with LV_DRAW_COMPLEX == 0"); +#endif +} + +void lv_canvas_blur_hor(lv_obj_t * obj, const lv_area_t * area, uint16_t r) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + if(r == 0) return; + + lv_canvas_t * canvas = (lv_canvas_t *)obj; + + lv_area_t a; + if(area) { + lv_area_copy(&a, area); + if(a.x1 < 0) a.x1 = 0; + if(a.y1 < 0) a.y1 = 0; + if(a.x2 > canvas->dsc.header.w - 1) a.x2 = canvas->dsc.header.w - 1; + if(a.y2 > canvas->dsc.header.h - 1) a.y2 = canvas->dsc.header.h - 1; + } + else { + a.x1 = 0; + a.y1 = 0; + a.x2 = canvas->dsc.header.w - 1; + a.y2 = canvas->dsc.header.h - 1; + } + + lv_color_t color = lv_obj_get_style_img_recolor(obj, LV_PART_MAIN); + + uint16_t r_back = r / 2; + uint16_t r_front = r / 2; + + if((r & 0x1) == 0) r_back--; + + bool has_alpha = lv_img_cf_has_alpha(canvas->dsc.header.cf); + + lv_coord_t line_w = lv_img_buf_get_img_size(canvas->dsc.header.w, 1, canvas->dsc.header.cf); + uint8_t * line_buf = lv_mem_buf_get(line_w); + + lv_img_dsc_t line_img; + line_img.data = line_buf; + line_img.header.always_zero = 0; + line_img.header.w = canvas->dsc.header.w; + line_img.header.h = 1; + line_img.header.cf = canvas->dsc.header.cf; + + lv_coord_t x; + lv_coord_t y; + lv_coord_t x_safe; + + for(y = a.y1; y <= a.y2; y++) { + uint32_t asum = 0; + uint32_t rsum = 0; + uint32_t gsum = 0; + uint32_t bsum = 0; + + lv_color_t c; + lv_opa_t opa = LV_OPA_TRANSP; + lv_memcpy(line_buf, &canvas->dsc.data[y * line_w], line_w); + + for(x = a.x1 - r_back; x <= a.x1 + r_front; x++) { + x_safe = x < 0 ? 0 : x; + x_safe = x_safe > canvas->dsc.header.w - 1 ? canvas->dsc.header.w - 1 : x_safe; + + c = lv_img_buf_get_px_color(&line_img, x_safe, 0, color); + if(has_alpha) opa = lv_img_buf_get_px_alpha(&line_img, x_safe, 0); + + rsum += c.ch.red; +#if LV_COLOR_DEPTH == 16 && LV_COLOR_16_SWAP + gsum += (c.ch.green_h << 3) + c.ch.green_l; +#else + gsum += c.ch.green; +#endif + bsum += c.ch.blue; + if(has_alpha) asum += opa; + } + + /*Just to indicate that the px is visible*/ + if(has_alpha == false) asum = LV_OPA_COVER; + + for(x = a.x1; x <= a.x2; x++) { + + if(asum) { + c.ch.red = rsum / r; +#if LV_COLOR_DEPTH == 16 && LV_COLOR_16_SWAP + uint8_t gtmp = gsum / r; + c.ch.green_h = gtmp >> 3; + c.ch.green_l = gtmp & 0x7; +#else + c.ch.green = gsum / r; +#endif + c.ch.blue = bsum / r; + if(has_alpha) opa = asum / r; + + lv_img_buf_set_px_color(&canvas->dsc, x, y, c); + } + if(has_alpha) lv_img_buf_set_px_alpha(&canvas->dsc, x, y, opa); + + x_safe = x - r_back; + x_safe = x_safe < 0 ? 0 : x_safe; + c = lv_img_buf_get_px_color(&line_img, x_safe, 0, color); + if(has_alpha) opa = lv_img_buf_get_px_alpha(&line_img, x_safe, 0); + + rsum -= c.ch.red; +#if LV_COLOR_DEPTH == 16 && LV_COLOR_16_SWAP + gsum -= (c.ch.green_h << 3) + c.ch.green_l; +#else + gsum -= c.ch.green; +#endif + bsum -= c.ch.blue; + if(has_alpha) asum -= opa; + + x_safe = x + 1 + r_front; + x_safe = x_safe > canvas->dsc.header.w - 1 ? canvas->dsc.header.w - 1 : x_safe; + c = lv_img_buf_get_px_color(&line_img, x_safe, 0, lv_color_white()); + if(has_alpha) opa = lv_img_buf_get_px_alpha(&line_img, x_safe, 0); + + rsum += c.ch.red; +#if LV_COLOR_DEPTH == 16 && LV_COLOR_16_SWAP + gsum += (c.ch.green_h << 3) + c.ch.green_l; +#else + gsum += c.ch.green; +#endif + bsum += c.ch.blue; + if(has_alpha) asum += opa; + } + } + lv_obj_invalidate(obj); + + lv_mem_buf_release(line_buf); +} + +void lv_canvas_blur_ver(lv_obj_t * obj, const lv_area_t * area, uint16_t r) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + if(r == 0) return; + + lv_canvas_t * canvas = (lv_canvas_t *)obj; + + lv_area_t a; + if(area) { + lv_area_copy(&a, area); + if(a.x1 < 0) a.x1 = 0; + if(a.y1 < 0) a.y1 = 0; + if(a.x2 > canvas->dsc.header.w - 1) a.x2 = canvas->dsc.header.w - 1; + if(a.y2 > canvas->dsc.header.h - 1) a.y2 = canvas->dsc.header.h - 1; + } + else { + a.x1 = 0; + a.y1 = 0; + a.x2 = canvas->dsc.header.w - 1; + a.y2 = canvas->dsc.header.h - 1; + } + + lv_color_t color = lv_obj_get_style_img_recolor(obj, LV_PART_MAIN); + + uint16_t r_back = r / 2; + uint16_t r_front = r / 2; + + if((r & 0x1) == 0) r_back--; + + bool has_alpha = lv_img_cf_has_alpha(canvas->dsc.header.cf); + lv_coord_t col_w = lv_img_buf_get_img_size(1, canvas->dsc.header.h, canvas->dsc.header.cf); + uint8_t * col_buf = lv_mem_buf_get(col_w); + lv_img_dsc_t line_img; + + line_img.data = col_buf; + line_img.header.always_zero = 0; + line_img.header.w = 1; + line_img.header.h = canvas->dsc.header.h; + line_img.header.cf = canvas->dsc.header.cf; + + lv_coord_t x; + lv_coord_t y; + lv_coord_t y_safe; + + for(x = a.x1; x <= a.x2; x++) { + uint32_t asum = 0; + uint32_t rsum = 0; + uint32_t gsum = 0; + uint32_t bsum = 0; + + lv_color_t c; + lv_opa_t opa = LV_OPA_COVER; + + for(y = a.y1 - r_back; y <= a.y1 + r_front; y++) { + y_safe = y < 0 ? 0 : y; + y_safe = y_safe > canvas->dsc.header.h - 1 ? canvas->dsc.header.h - 1 : y_safe; + + c = lv_img_buf_get_px_color(&canvas->dsc, x, y_safe, color); + if(has_alpha) opa = lv_img_buf_get_px_alpha(&canvas->dsc, x, y_safe); + + lv_img_buf_set_px_color(&line_img, 0, y_safe, c); + if(has_alpha) lv_img_buf_set_px_alpha(&line_img, 0, y_safe, opa); + + rsum += c.ch.red; +#if LV_COLOR_DEPTH == 16 && LV_COLOR_16_SWAP + gsum += (c.ch.green_h << 3) + c.ch.green_l; +#else + gsum += c.ch.green; +#endif + bsum += c.ch.blue; + if(has_alpha) asum += opa; + } + + /*Just to indicate that the px is visible*/ + if(has_alpha == false) asum = LV_OPA_COVER; + + for(y = a.y1; y <= a.y2; y++) { + if(asum) { + c.ch.red = rsum / r; +#if LV_COLOR_DEPTH == 16 && LV_COLOR_16_SWAP + uint8_t gtmp = gsum / r; + c.ch.green_h = gtmp >> 3; + c.ch.green_l = gtmp & 0x7; +#else + c.ch.green = gsum / r; +#endif + c.ch.blue = bsum / r; + if(has_alpha) opa = asum / r; + + lv_img_buf_set_px_color(&canvas->dsc, x, y, c); + } + if(has_alpha) lv_img_buf_set_px_alpha(&canvas->dsc, x, y, opa); + + y_safe = y - r_back; + y_safe = y_safe < 0 ? 0 : y_safe; + c = lv_img_buf_get_px_color(&line_img, 0, y_safe, color); + if(has_alpha) opa = lv_img_buf_get_px_alpha(&line_img, 0, y_safe); + + rsum -= c.ch.red; +#if LV_COLOR_DEPTH == 16 && LV_COLOR_16_SWAP + gsum -= (c.ch.green_h << 3) + c.ch.green_l; +#else + gsum -= c.ch.green; +#endif + bsum -= c.ch.blue; + if(has_alpha) asum -= opa; + + y_safe = y + 1 + r_front; + y_safe = y_safe > canvas->dsc.header.h - 1 ? canvas->dsc.header.h - 1 : y_safe; + + c = lv_img_buf_get_px_color(&canvas->dsc, x, y_safe, color); + if(has_alpha) opa = lv_img_buf_get_px_alpha(&canvas->dsc, x, y_safe); + + lv_img_buf_set_px_color(&line_img, 0, y_safe, c); + if(has_alpha) lv_img_buf_set_px_alpha(&line_img, 0, y_safe, opa); + + rsum += c.ch.red; +#if LV_COLOR_DEPTH == 16 && LV_COLOR_16_SWAP + gsum += (c.ch.green_h << 3) + c.ch.green_l; +#else + gsum += c.ch.green; +#endif + bsum += c.ch.blue; + if(has_alpha) asum += opa; + } + } + + lv_obj_invalidate(obj); + + lv_mem_buf_release(col_buf); +} + +void lv_canvas_fill_bg(lv_obj_t * canvas, lv_color_t color, lv_opa_t opa) +{ + LV_ASSERT_OBJ(canvas, MY_CLASS); + + lv_img_dsc_t * dsc = lv_canvas_get_img(canvas); + + if(dsc->header.cf == LV_IMG_CF_INDEXED_1BIT) { + uint32_t row_byte_cnt = (dsc->header.w + 7) >> 3; + /*+8 skip the palette*/ + lv_memset((uint8_t *)dsc->data + 8, color.full ? 0xff : 0x00, row_byte_cnt * dsc->header.h); + } + else if(dsc->header.cf == LV_IMG_CF_ALPHA_1BIT) { + uint32_t row_byte_cnt = (dsc->header.w + 7) >> 3; + lv_memset((uint8_t *)dsc->data, opa > LV_OPA_50 ? 0xff : 0x00, row_byte_cnt * dsc->header.h); + } + else { + uint32_t x; + uint32_t y; + for(y = 0; y < dsc->header.h; y++) { + for(x = 0; x < dsc->header.w; x++) { + lv_img_buf_set_px_color(dsc, x, y, color); + lv_img_buf_set_px_alpha(dsc, x, y, opa); + } + } + } + + lv_obj_invalidate(canvas); +} + +void lv_canvas_draw_rect(lv_obj_t * canvas, lv_coord_t x, lv_coord_t y, lv_coord_t w, lv_coord_t h, + const lv_draw_rect_dsc_t * draw_dsc) +{ + LV_ASSERT_OBJ(canvas, MY_CLASS); + + lv_img_dsc_t * dsc = lv_canvas_get_img(canvas); + + if(dsc->header.cf >= LV_IMG_CF_INDEXED_1BIT && dsc->header.cf <= LV_IMG_CF_INDEXED_8BIT) { + LV_LOG_WARN("lv_canvas_draw_rect: can't draw to LV_IMG_CF_INDEXED canvas"); + return; + } + + /*Create a dummy display to fool the lv_draw function. + *It will think it draws to real screen.*/ + lv_disp_t fake_disp; + lv_disp_drv_t driver; + lv_area_t clip_area; + init_fake_disp(canvas, &fake_disp, &driver, &clip_area); + + lv_disp_t * refr_ori = _lv_refr_get_disp_refreshing(); + _lv_refr_set_disp_refreshing(&fake_disp); + + /*Disable anti-aliasing if drawing with transparent color to chroma keyed canvas*/ + lv_color_t ctransp = LV_COLOR_CHROMA_KEY; + if(dsc->header.cf == LV_IMG_CF_TRUE_COLOR_CHROMA_KEYED && + draw_dsc->bg_color.full == ctransp.full) { + fake_disp.driver->antialiasing = 0; + } + + lv_area_t coords; + coords.x1 = x; + coords.y1 = y; + coords.x2 = x + w - 1; + coords.y2 = y + h - 1; + + lv_draw_rect(driver.draw_ctx, draw_dsc, &coords); + + _lv_refr_set_disp_refreshing(refr_ori); + + deinit_fake_disp(canvas, &fake_disp); + + lv_obj_invalidate(canvas); +} + +void lv_canvas_draw_text(lv_obj_t * canvas, lv_coord_t x, lv_coord_t y, lv_coord_t max_w, + lv_draw_label_dsc_t * draw_dsc, const char * txt) +{ + LV_ASSERT_OBJ(canvas, MY_CLASS); + + lv_img_dsc_t * dsc = lv_canvas_get_img(canvas); + + if(dsc->header.cf >= LV_IMG_CF_INDEXED_1BIT && dsc->header.cf <= LV_IMG_CF_INDEXED_8BIT) { + LV_LOG_WARN("lv_canvas_draw_text: can't draw to LV_IMG_CF_INDEXED canvas"); + return; + } + + /*Create a dummy display to fool the lv_draw function. + *It will think it draws to real screen.*/ + lv_disp_t fake_disp; + lv_disp_drv_t driver; + lv_area_t clip_area; + init_fake_disp(canvas, &fake_disp, &driver, &clip_area); + + lv_disp_t * refr_ori = _lv_refr_get_disp_refreshing(); + _lv_refr_set_disp_refreshing(&fake_disp); + + lv_area_t coords; + coords.x1 = x; + coords.y1 = y; + coords.x2 = x + max_w - 1; + coords.y2 = dsc->header.h - 1; + lv_draw_label(driver.draw_ctx, draw_dsc, &coords, txt, NULL); + + _lv_refr_set_disp_refreshing(refr_ori); + + deinit_fake_disp(canvas, &fake_disp); + + lv_obj_invalidate(canvas); +} + +void lv_canvas_draw_img(lv_obj_t * canvas, lv_coord_t x, lv_coord_t y, const void * src, + const lv_draw_img_dsc_t * draw_dsc) +{ + LV_ASSERT_OBJ(canvas, MY_CLASS); + + lv_img_dsc_t * dsc = lv_canvas_get_img(canvas); + + if(dsc->header.cf >= LV_IMG_CF_INDEXED_1BIT && dsc->header.cf <= LV_IMG_CF_INDEXED_8BIT) { + LV_LOG_WARN("lv_canvas_draw_img: can't draw to LV_IMG_CF_INDEXED canvas"); + return; + } + + lv_img_header_t header; + lv_res_t res = lv_img_decoder_get_info(src, &header); + if(res != LV_RES_OK) { + LV_LOG_WARN("lv_canvas_draw_img: Couldn't get the image data."); + return; + } + /*Create a dummy display to fool the lv_draw function. + *It will think it draws to real screen.*/ + lv_disp_t fake_disp; + lv_disp_drv_t driver; + lv_area_t clip_area; + init_fake_disp(canvas, &fake_disp, &driver, &clip_area); + + lv_disp_t * refr_ori = _lv_refr_get_disp_refreshing(); + _lv_refr_set_disp_refreshing(&fake_disp); + + lv_area_t coords; + coords.x1 = x; + coords.y1 = y; + coords.x2 = x + header.w - 1; + coords.y2 = y + header.h - 1; + + lv_draw_img(driver.draw_ctx, draw_dsc, &coords, src); + + _lv_refr_set_disp_refreshing(refr_ori); + + deinit_fake_disp(canvas, &fake_disp); + + lv_obj_invalidate(canvas); +} + +void lv_canvas_draw_line(lv_obj_t * canvas, const lv_point_t points[], uint32_t point_cnt, + const lv_draw_line_dsc_t * draw_dsc) +{ + LV_ASSERT_OBJ(canvas, MY_CLASS); + + lv_img_dsc_t * dsc = lv_canvas_get_img(canvas); + + if(dsc->header.cf >= LV_IMG_CF_INDEXED_1BIT && dsc->header.cf <= LV_IMG_CF_INDEXED_8BIT) { + LV_LOG_WARN("lv_canvas_draw_line: can't draw to LV_IMG_CF_INDEXED canvas"); + return; + } + + /*Create a dummy display to fool the lv_draw function. + *It will think it draws to real screen.*/ + lv_disp_t fake_disp; + lv_disp_drv_t driver; + lv_area_t clip_area; + init_fake_disp(canvas, &fake_disp, &driver, &clip_area); + + lv_disp_t * refr_ori = _lv_refr_get_disp_refreshing(); + _lv_refr_set_disp_refreshing(&fake_disp); + + + /*Disable anti-aliasing if drawing with transparent color to chroma keyed canvas*/ + lv_color_t ctransp = LV_COLOR_CHROMA_KEY; + if(dsc->header.cf == LV_IMG_CF_TRUE_COLOR_CHROMA_KEYED && + draw_dsc->color.full == ctransp.full) { + fake_disp.driver->antialiasing = 0; + } + + uint32_t i; + for(i = 0; i < point_cnt - 1; i++) { + lv_draw_line(driver.draw_ctx, draw_dsc, &points[i], &points[i + 1]); + } + + _lv_refr_set_disp_refreshing(refr_ori); + + deinit_fake_disp(canvas, &fake_disp); + + lv_obj_invalidate(canvas); +} + +void lv_canvas_draw_polygon(lv_obj_t * canvas, const lv_point_t points[], uint32_t point_cnt, + const lv_draw_rect_dsc_t * draw_dsc) +{ + LV_ASSERT_OBJ(canvas, MY_CLASS); + + lv_img_dsc_t * dsc = lv_canvas_get_img(canvas); + + if(dsc->header.cf >= LV_IMG_CF_INDEXED_1BIT && dsc->header.cf <= LV_IMG_CF_INDEXED_8BIT) { + LV_LOG_WARN("lv_canvas_draw_polygon: can't draw to LV_IMG_CF_INDEXED canvas"); + return; + } + + /*Create a dummy display to fool the lv_draw function. + *It will think it draws to real screen.*/ + lv_disp_t fake_disp; + lv_disp_drv_t driver; + lv_area_t clip_area; + init_fake_disp(canvas, &fake_disp, &driver, &clip_area); + + lv_disp_t * refr_ori = _lv_refr_get_disp_refreshing(); + _lv_refr_set_disp_refreshing(&fake_disp); + + /*Disable anti-aliasing if drawing with transparent color to chroma keyed canvas*/ + lv_color_t ctransp = LV_COLOR_CHROMA_KEY; + if(dsc->header.cf == LV_IMG_CF_TRUE_COLOR_CHROMA_KEYED && + draw_dsc->bg_color.full == ctransp.full) { + fake_disp.driver->antialiasing = 0; + } + + lv_draw_polygon(driver.draw_ctx, draw_dsc, points, point_cnt); + + _lv_refr_set_disp_refreshing(refr_ori); + + deinit_fake_disp(canvas, &fake_disp); + + lv_obj_invalidate(canvas); +} + +void lv_canvas_draw_arc(lv_obj_t * canvas, lv_coord_t x, lv_coord_t y, lv_coord_t r, int32_t start_angle, + int32_t end_angle, const lv_draw_arc_dsc_t * draw_dsc) +{ +#if LV_DRAW_COMPLEX + LV_ASSERT_OBJ(canvas, MY_CLASS); + + lv_img_dsc_t * dsc = lv_canvas_get_img(canvas); + + if(dsc->header.cf >= LV_IMG_CF_INDEXED_1BIT && dsc->header.cf <= LV_IMG_CF_INDEXED_8BIT) { + LV_LOG_WARN("lv_canvas_draw_arc: can't draw to LV_IMG_CF_INDEXED canvas"); + return; + } + + /*Create a dummy display to fool the lv_draw function. + *It will think it draws to real screen.*/ + lv_disp_t fake_disp; + lv_disp_drv_t driver; + lv_area_t clip_area; + init_fake_disp(canvas, &fake_disp, &driver, &clip_area); + + lv_disp_t * refr_ori = _lv_refr_get_disp_refreshing(); + _lv_refr_set_disp_refreshing(&fake_disp); + + lv_point_t p = {x, y}; + lv_draw_arc(driver.draw_ctx, draw_dsc, &p, r, start_angle, end_angle); + + _lv_refr_set_disp_refreshing(refr_ori); + + deinit_fake_disp(canvas, &fake_disp); + + lv_obj_invalidate(canvas); +#else + LV_UNUSED(canvas); + LV_UNUSED(x); + LV_UNUSED(y); + LV_UNUSED(r); + LV_UNUSED(start_angle); + LV_UNUSED(end_angle); + LV_UNUSED(draw_dsc); + LV_LOG_WARN("Can't draw arc with LV_DRAW_COMPLEX == 0"); +#endif +} + +/********************** + * STATIC FUNCTIONS + **********************/ + +static void lv_canvas_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj) +{ + LV_UNUSED(class_p); + LV_TRACE_OBJ_CREATE("begin"); + + lv_canvas_t * canvas = (lv_canvas_t *)obj; + + canvas->dsc.header.always_zero = 0; + canvas->dsc.header.cf = LV_IMG_CF_TRUE_COLOR; + canvas->dsc.header.h = 0; + canvas->dsc.header.w = 0; + canvas->dsc.data_size = 0; + canvas->dsc.data = NULL; + + lv_img_set_src(obj, &canvas->dsc); + + LV_TRACE_OBJ_CREATE("finished"); +} + +static void lv_canvas_destructor(const lv_obj_class_t * class_p, lv_obj_t * obj) +{ + LV_UNUSED(class_p); + LV_TRACE_OBJ_CREATE("begin"); + + lv_canvas_t * canvas = (lv_canvas_t *)obj; + lv_img_cache_invalidate_src(&canvas->dsc); +} + + +static void init_fake_disp(lv_obj_t * canvas, lv_disp_t * disp, lv_disp_drv_t * drv, lv_area_t * clip_area) +{ + lv_img_dsc_t * dsc = lv_canvas_get_img(canvas); + + clip_area->x1 = 0; + clip_area->x2 = dsc->header.w - 1; + clip_area->y1 = 0; + clip_area->y2 = dsc->header.h - 1; + + /*Allocate the fake driver on the stack as the entire display doesn't outlive this function*/ + lv_memset_00(disp, sizeof(lv_disp_t)); + disp->driver = drv; + + lv_disp_drv_init(disp->driver); + disp->driver->hor_res = dsc->header.w; + disp->driver->ver_res = dsc->header.h; + + lv_draw_ctx_t * draw_ctx = lv_mem_alloc(sizeof(lv_draw_sw_ctx_t)); + LV_ASSERT_MALLOC(draw_ctx); + if(draw_ctx == NULL) return; + lv_draw_sw_init_ctx(drv, draw_ctx); + disp->driver->draw_ctx = draw_ctx; + draw_ctx->clip_area = clip_area; + draw_ctx->buf_area = clip_area; + draw_ctx->buf = (void *)dsc->data; + + lv_disp_drv_use_generic_set_px_cb(disp->driver, dsc->header.cf); + if(LV_COLOR_SCREEN_TRANSP && dsc->header.cf != LV_IMG_CF_TRUE_COLOR_ALPHA) { + drv->screen_transp = 0; + } +} + +static void deinit_fake_disp(lv_obj_t * canvas, lv_disp_t * disp) +{ + LV_UNUSED(canvas); + lv_draw_sw_deinit_ctx(disp->driver, disp->driver->draw_ctx); + lv_mem_free(disp->driver->draw_ctx); +} + + + +#endif diff --git a/lib/lvgl/src/widgets/lv_canvas.h b/lib/lvgl/src/widgets/lv_canvas.h new file mode 100644 index 00000000..71f05161 --- /dev/null +++ b/lib/lvgl/src/widgets/lv_canvas.h @@ -0,0 +1,280 @@ +/** + * @file lv_canvas.h + * + */ + +#ifndef LV_CANVAS_H +#define LV_CANVAS_H + +#ifdef __cplusplus +extern "C" { +#endif + +/********************* + * INCLUDES + *********************/ +#include "../lv_conf_internal.h" + +#if LV_USE_CANVAS != 0 + +#include "../core/lv_obj.h" +#include "../widgets/lv_img.h" +#include "../draw/lv_draw_img.h" + +/********************* + * DEFINES + *********************/ + +/********************** + * TYPEDEFS + **********************/ +extern const lv_obj_class_t lv_canvas_class; + +/*Data of canvas*/ +typedef struct { + lv_img_t img; + lv_img_dsc_t dsc; +} lv_canvas_t; + +/********************** + * GLOBAL PROTOTYPES + **********************/ + +/** + * Create a canvas object + * @param parent pointer to an object, it will be the parent of the new canvas + * @return pointer to the created canvas + */ +lv_obj_t * lv_canvas_create(lv_obj_t * parent); + +/*===================== + * Setter functions + *====================*/ + +/** + * Set a buffer for the canvas. + * @param buf a buffer where the content of the canvas will be. + * The required size is (lv_img_color_format_get_px_size(cf) * w) / 8 * h) + * It can be allocated with `lv_mem_alloc()` or + * it can be statically allocated array (e.g. static lv_color_t buf[100*50]) or + * it can be an address in RAM or external SRAM + * @param canvas pointer to a canvas object + * @param w width of the canvas + * @param h height of the canvas + * @param cf color format. `LV_IMG_CF_...` + */ +void lv_canvas_set_buffer(lv_obj_t * canvas, void * buf, lv_coord_t w, lv_coord_t h, lv_img_cf_t cf); + +/** + * Set the color of a pixel on the canvas + * @param canvas + * @param x x coordinate of the point to set + * @param y x coordinate of the point to set + * @param c color of the pixel + */ +void lv_canvas_set_px_color(lv_obj_t * canvas, lv_coord_t x, lv_coord_t y, lv_color_t c); + +/** + * DEPRECATED: added only for backward compatibility + */ +static inline void lv_canvas_set_px(lv_obj_t * canvas, lv_coord_t x, lv_coord_t y, lv_color_t c) +{ + lv_canvas_set_px_color(canvas, x, y, c); +} + +/** + * Set the opacity of a pixel on the canvas + * @param canvas + * @param x x coordinate of the point to set + * @param y x coordinate of the point to set + * @param opa opacity of the pixel (0..255) + */ +void lv_canvas_set_px_opa(lv_obj_t * canvas, lv_coord_t x, lv_coord_t y, lv_opa_t opa); + + +/** + * Set the palette color of a canvas with index format. Valid only for `LV_IMG_CF_INDEXED1/2/4/8` + * @param canvas pointer to canvas object + * @param id the palette color to set: + * - for `LV_IMG_CF_INDEXED1`: 0..1 + * - for `LV_IMG_CF_INDEXED2`: 0..3 + * - for `LV_IMG_CF_INDEXED4`: 0..15 + * - for `LV_IMG_CF_INDEXED8`: 0..255 + * @param c the color to set + */ +void lv_canvas_set_palette(lv_obj_t * canvas, uint8_t id, lv_color_t c); + +/*===================== + * Getter functions + *====================*/ + +/** + * Get the color of a pixel on the canvas + * @param canvas + * @param x x coordinate of the point to set + * @param y x coordinate of the point to set + * @return color of the point + */ +lv_color_t lv_canvas_get_px(lv_obj_t * canvas, lv_coord_t x, lv_coord_t y); + +/** + * Get the image of the canvas as a pointer to an `lv_img_dsc_t` variable. + * @param canvas pointer to a canvas object + * @return pointer to the image descriptor. + */ +lv_img_dsc_t * lv_canvas_get_img(lv_obj_t * canvas); + +/*===================== + * Other functions + *====================*/ + +/** + * Copy a buffer to the canvas + * @param canvas pointer to a canvas object + * @param to_copy buffer to copy. The color format has to match with the canvas's buffer color + * format + * @param x left side of the destination position + * @param y top side of the destination position + * @param w width of the buffer to copy + * @param h height of the buffer to copy + */ +void lv_canvas_copy_buf(lv_obj_t * canvas, const void * to_copy, lv_coord_t x, lv_coord_t y, lv_coord_t w, + lv_coord_t h); + +/** + * Transform and image and store the result on a canvas. + * @param canvas pointer to a canvas object to store the result of the transformation. + * @param img pointer to an image descriptor to transform. + * Can be the image descriptor of an other canvas too (`lv_canvas_get_img()`). + * @param angle the angle of rotation (0..3600), 0.1 deg resolution + * @param zoom zoom factor (256 no zoom); + * @param offset_x offset X to tell where to put the result data on destination canvas + * @param offset_y offset X to tell where to put the result data on destination canvas + * @param pivot_x pivot X of rotation. Relative to the source canvas + * Set to `source width / 2` to rotate around the center + * @param pivot_y pivot Y of rotation. Relative to the source canvas + * Set to `source height / 2` to rotate around the center + * @param antialias apply anti-aliasing during the transformation. Looks better but slower. + */ +void lv_canvas_transform(lv_obj_t * canvas, lv_img_dsc_t * img, int16_t angle, uint16_t zoom, lv_coord_t offset_x, + lv_coord_t offset_y, + int32_t pivot_x, int32_t pivot_y, bool antialias); + +/** + * Apply horizontal blur on the canvas + * @param canvas pointer to a canvas object + * @param area the area to blur. If `NULL` the whole canvas will be blurred. + * @param r radius of the blur + */ +void lv_canvas_blur_hor(lv_obj_t * canvas, const lv_area_t * area, uint16_t r); + +/** + * Apply vertical blur on the canvas + * @param canvas pointer to a canvas object + * @param area the area to blur. If `NULL` the whole canvas will be blurred. + * @param r radius of the blur + */ +void lv_canvas_blur_ver(lv_obj_t * canvas, const lv_area_t * area, uint16_t r); + +/** + * Fill the canvas with color + * @param canvas pointer to a canvas + * @param color the background color + * @param opa the desired opacity + */ +void lv_canvas_fill_bg(lv_obj_t * canvas, lv_color_t color, lv_opa_t opa); + +/** + * Draw a rectangle on the canvas + * @param canvas pointer to a canvas object + * @param x left coordinate of the rectangle + * @param y top coordinate of the rectangle + * @param w width of the rectangle + * @param h height of the rectangle + * @param draw_dsc descriptor of the rectangle + */ +void lv_canvas_draw_rect(lv_obj_t * canvas, lv_coord_t x, lv_coord_t y, lv_coord_t w, lv_coord_t h, + const lv_draw_rect_dsc_t * draw_dsc); + +/** + * Draw a text on the canvas. + * @param canvas pointer to a canvas object + * @param x left coordinate of the text + * @param y top coordinate of the text + * @param max_w max width of the text. The text will be wrapped to fit into this size + * @param draw_dsc pointer to a valid label descriptor `lv_draw_label_dsc_t` + * @param txt text to display + */ +void lv_canvas_draw_text(lv_obj_t * canvas, lv_coord_t x, lv_coord_t y, lv_coord_t max_w, + lv_draw_label_dsc_t * draw_dsc, const char * txt); + +/** + * Draw an image on the canvas + * @param canvas pointer to a canvas object + * @param x left coordinate of the image + * @param y top coordinate of the image + * @param src image source. Can be a pointer an `lv_img_dsc_t` variable or a path an image. + * @param draw_dsc pointer to a valid label descriptor `lv_draw_img_dsc_t` + */ +void lv_canvas_draw_img(lv_obj_t * canvas, lv_coord_t x, lv_coord_t y, const void * src, + const lv_draw_img_dsc_t * draw_dsc); + +/** + * Draw a line on the canvas + * @param canvas pointer to a canvas object + * @param points point of the line + * @param point_cnt number of points + * @param draw_dsc pointer to an initialized `lv_draw_line_dsc_t` variable + */ +void lv_canvas_draw_line(lv_obj_t * canvas, const lv_point_t points[], uint32_t point_cnt, + const lv_draw_line_dsc_t * draw_dsc); + +/** + * Draw a polygon on the canvas + * @param canvas pointer to a canvas object + * @param points point of the polygon + * @param point_cnt number of points + * @param draw_dsc pointer to an initialized `lv_draw_rect_dsc_t` variable + */ +void lv_canvas_draw_polygon(lv_obj_t * canvas, const lv_point_t points[], uint32_t point_cnt, + const lv_draw_rect_dsc_t * draw_dsc); + +/** + * Draw an arc on the canvas + * @param canvas pointer to a canvas object + * @param x origo x of the arc + * @param y origo y of the arc + * @param r radius of the arc + * @param start_angle start angle in degrees + * @param end_angle end angle in degrees + * @param draw_dsc pointer to an initialized `lv_draw_line_dsc_t` variable + */ +void lv_canvas_draw_arc(lv_obj_t * canvas, lv_coord_t x, lv_coord_t y, lv_coord_t r, int32_t start_angle, + int32_t end_angle, const lv_draw_arc_dsc_t * draw_dsc); + +/********************** + * MACROS + **********************/ +#define LV_CANVAS_BUF_SIZE_TRUE_COLOR(w, h) LV_IMG_BUF_SIZE_TRUE_COLOR(w, h) +#define LV_CANVAS_BUF_SIZE_TRUE_COLOR_CHROMA_KEYED(w, h) LV_IMG_BUF_SIZE_TRUE_COLOR_CHROMA_KEYED(w, h) +#define LV_CANVAS_BUF_SIZE_TRUE_COLOR_ALPHA(w, h) LV_IMG_BUF_SIZE_TRUE_COLOR_ALPHA(w, h) + +/*+ 1: to be sure no fractional row*/ +#define LV_CANVAS_BUF_SIZE_ALPHA_1BIT(w, h) LV_IMG_BUF_SIZE_ALPHA_1BIT(w, h) +#define LV_CANVAS_BUF_SIZE_ALPHA_2BIT(w, h) LV_IMG_BUF_SIZE_ALPHA_2BIT(w, h) +#define LV_CANVAS_BUF_SIZE_ALPHA_4BIT(w, h) LV_IMG_BUF_SIZE_ALPHA_4BIT(w, h) +#define LV_CANVAS_BUF_SIZE_ALPHA_8BIT(w, h) LV_IMG_BUF_SIZE_ALPHA_8BIT(w, h) + +/*4 * X: for palette*/ +#define LV_CANVAS_BUF_SIZE_INDEXED_1BIT(w, h) LV_IMG_BUF_SIZE_INDEXED_1BIT(w, h) +#define LV_CANVAS_BUF_SIZE_INDEXED_2BIT(w, h) LV_IMG_BUF_SIZE_INDEXED_2BIT(w, h) +#define LV_CANVAS_BUF_SIZE_INDEXED_4BIT(w, h) LV_IMG_BUF_SIZE_INDEXED_4BIT(w, h) +#define LV_CANVAS_BUF_SIZE_INDEXED_8BIT(w, h) LV_IMG_BUF_SIZE_INDEXED_8BIT(w, h) + +#endif /*LV_USE_CANVAS*/ + +#ifdef __cplusplus +} /*extern "C"*/ +#endif + +#endif /*LV_CANVAS_H*/ diff --git a/lib/lvgl/src/widgets/lv_checkbox.c b/lib/lvgl/src/widgets/lv_checkbox.c new file mode 100644 index 00000000..dd3b3d15 --- /dev/null +++ b/lib/lvgl/src/widgets/lv_checkbox.c @@ -0,0 +1,262 @@ +/** + * @file lv_cb.c + * + */ + +/********************* + * INCLUDES + *********************/ +#include "lv_checkbox.h" +#if LV_USE_CHECKBOX != 0 + +#include "../misc/lv_assert.h" +#include "../misc/lv_txt_ap.h" +#include "../core/lv_group.h" +#include "../draw/lv_draw.h" + +/********************* + * DEFINES + *********************/ +#define MY_CLASS &lv_checkbox_class + +/********************** + * TYPEDEFS + **********************/ + +/********************** + * STATIC PROTOTYPES + **********************/ +static void lv_checkbox_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj); +static void lv_checkbox_destructor(const lv_obj_class_t * class_p, lv_obj_t * obj); +static void lv_checkbox_event(const lv_obj_class_t * class_p, lv_event_t * e); +static void lv_checkbox_draw(lv_event_t * e); + +/********************** + * STATIC VARIABLES + **********************/ +const lv_obj_class_t lv_checkbox_class = { + .constructor_cb = lv_checkbox_constructor, + .destructor_cb = lv_checkbox_destructor, + .event_cb = lv_checkbox_event, + .width_def = LV_SIZE_CONTENT, + .height_def = LV_SIZE_CONTENT, + .group_def = LV_OBJ_CLASS_GROUP_DEF_TRUE, + .instance_size = sizeof(lv_checkbox_t), + .base_class = &lv_obj_class +}; + +/********************** + * MACROS + **********************/ + +/********************** + * GLOBAL FUNCTIONS + **********************/ + +lv_obj_t * lv_checkbox_create(lv_obj_t * parent) +{ + LV_LOG_INFO("begin"); + lv_obj_t * obj = lv_obj_class_create_obj(MY_CLASS, parent); + lv_obj_class_init_obj(obj); + return obj; +} + +/*===================== + * Setter functions + *====================*/ + +void lv_checkbox_set_text(lv_obj_t * obj, const char * txt) +{ + lv_checkbox_t * cb = (lv_checkbox_t *)obj; +#if LV_USE_ARABIC_PERSIAN_CHARS + size_t len = _lv_txt_ap_calc_bytes_cnt(txt); +#else + size_t len = strlen(txt); +#endif + + if(!cb->static_txt) cb->txt = lv_mem_realloc(cb->txt, len + 1); + else cb->txt = lv_mem_alloc(len + 1); +#if LV_USE_ARABIC_PERSIAN_CHARS + _lv_txt_ap_proc(txt, cb->txt); +#else + strcpy(cb->txt, txt); +#endif + + cb->static_txt = 0; + + lv_obj_refresh_self_size(obj); + lv_obj_invalidate(obj); +} + +void lv_checkbox_set_text_static(lv_obj_t * obj, const char * txt) +{ + lv_checkbox_t * cb = (lv_checkbox_t *)obj; + + if(!cb->static_txt) lv_mem_free(cb->txt); + + cb->txt = (char *)txt; + cb->static_txt = 1; + + lv_obj_refresh_self_size(obj); + lv_obj_invalidate(obj); +} + +/*===================== + * Getter functions + *====================*/ + +const char * lv_checkbox_get_text(const lv_obj_t * obj) +{ + lv_checkbox_t * cb = (lv_checkbox_t *)obj; + return cb->txt; +} + +/********************** + * STATIC FUNCTIONS + **********************/ + +static void lv_checkbox_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj) +{ + LV_UNUSED(class_p); + LV_TRACE_OBJ_CREATE("begin"); + + lv_checkbox_t * cb = (lv_checkbox_t *)obj; + + cb->txt = "Check box"; + cb->static_txt = 1; + lv_obj_add_flag(obj, LV_OBJ_FLAG_CLICKABLE); + lv_obj_add_flag(obj, LV_OBJ_FLAG_CHECKABLE); + lv_obj_add_flag(obj, LV_OBJ_FLAG_SCROLL_ON_FOCUS); + + LV_TRACE_OBJ_CREATE("finished"); +} + +static void lv_checkbox_destructor(const lv_obj_class_t * class_p, lv_obj_t * obj) +{ + LV_UNUSED(class_p); + LV_TRACE_OBJ_CREATE("begin"); + + lv_checkbox_t * cb = (lv_checkbox_t *)obj; + if(!cb->static_txt) { + lv_mem_free(cb->txt); + cb->txt = NULL; + } + LV_TRACE_OBJ_CREATE("finished"); +} + +static void lv_checkbox_event(const lv_obj_class_t * class_p, lv_event_t * e) +{ + LV_UNUSED(class_p); + + lv_res_t res; + /*Call the ancestor's event handler*/ + res = lv_obj_event_base(MY_CLASS, e); + if(res != LV_RES_OK) return; + + lv_event_code_t code = lv_event_get_code(e); + lv_obj_t * obj = lv_event_get_target(e); + + if(code == LV_EVENT_GET_SELF_SIZE) { + lv_point_t * p = lv_event_get_param(e); + lv_checkbox_t * cb = (lv_checkbox_t *)obj; + + const lv_font_t * font = lv_obj_get_style_text_font(obj, LV_PART_MAIN); + lv_coord_t font_h = lv_font_get_line_height(font); + lv_coord_t line_space = lv_obj_get_style_text_line_space(obj, LV_PART_MAIN); + lv_coord_t letter_space = lv_obj_get_style_text_letter_space(obj, LV_PART_MAIN); + + lv_point_t txt_size; + lv_txt_get_size(&txt_size, cb->txt, font, letter_space, line_space, LV_COORD_MAX, LV_TEXT_FLAG_NONE); + + lv_coord_t bg_colp = lv_obj_get_style_pad_column(obj, LV_PART_MAIN); + lv_coord_t marker_leftp = lv_obj_get_style_pad_left(obj, LV_PART_INDICATOR); + lv_coord_t marker_rightp = lv_obj_get_style_pad_right(obj, LV_PART_INDICATOR); + lv_coord_t marker_topp = lv_obj_get_style_pad_top(obj, LV_PART_INDICATOR); + lv_coord_t marker_bottomp = lv_obj_get_style_pad_bottom(obj, LV_PART_INDICATOR); + lv_point_t marker_size; + marker_size.x = font_h + marker_leftp + marker_rightp; + marker_size.y = font_h + marker_topp + marker_bottomp; + + p->x = marker_size.x + txt_size.x + bg_colp; + p->y = LV_MAX(marker_size.y, txt_size.y); + } + else if(code == LV_EVENT_REFR_EXT_DRAW_SIZE) { + lv_coord_t * s = lv_event_get_param(e); + lv_coord_t m = lv_obj_calculate_ext_draw_size(obj, LV_PART_INDICATOR); + *s = LV_MAX(*s, m); + } + else if(code == LV_EVENT_DRAW_MAIN) { + lv_checkbox_draw(e); + } +} + +static void lv_checkbox_draw(lv_event_t * e) +{ + lv_obj_t * obj = lv_event_get_target(e); + lv_checkbox_t * cb = (lv_checkbox_t *)obj; + + lv_draw_ctx_t * draw_ctx = lv_event_get_draw_ctx(e); + const lv_font_t * font = lv_obj_get_style_text_font(obj, LV_PART_MAIN); + lv_coord_t font_h = lv_font_get_line_height(font); + + lv_coord_t bg_border = lv_obj_get_style_border_width(obj, LV_PART_MAIN); + lv_coord_t bg_topp = lv_obj_get_style_pad_top(obj, LV_PART_MAIN) + bg_border; + lv_coord_t bg_leftp = lv_obj_get_style_pad_left(obj, LV_PART_MAIN) + bg_border; + lv_coord_t bg_colp = lv_obj_get_style_pad_column(obj, LV_PART_MAIN); + + lv_coord_t marker_leftp = lv_obj_get_style_pad_left(obj, LV_PART_INDICATOR); + lv_coord_t marker_rightp = lv_obj_get_style_pad_right(obj, LV_PART_INDICATOR); + lv_coord_t marker_topp = lv_obj_get_style_pad_top(obj, LV_PART_INDICATOR); + lv_coord_t marker_bottomp = lv_obj_get_style_pad_bottom(obj, LV_PART_INDICATOR); + + lv_coord_t transf_w = lv_obj_get_style_transform_width(obj, LV_PART_INDICATOR); + lv_coord_t transf_h = lv_obj_get_style_transform_height(obj, LV_PART_INDICATOR); + + lv_draw_rect_dsc_t indic_dsc; + lv_draw_rect_dsc_init(&indic_dsc); + lv_obj_init_draw_rect_dsc(obj, LV_PART_INDICATOR, &indic_dsc); + lv_area_t marker_area; + marker_area.x1 = obj->coords.x1 + bg_leftp; + marker_area.x2 = marker_area.x1 + font_h + marker_leftp + marker_rightp - 1; + marker_area.y1 = obj->coords.y1 + bg_topp; + marker_area.y2 = marker_area.y1 + font_h + marker_topp + marker_bottomp - 1; + + lv_area_t marker_area_transf; + lv_area_copy(&marker_area_transf, &marker_area); + marker_area_transf.x1 -= transf_w; + marker_area_transf.x2 += transf_w; + marker_area_transf.y1 -= transf_h; + marker_area_transf.y2 += transf_h; + + lv_obj_draw_part_dsc_t part_draw_dsc; + lv_obj_draw_dsc_init(&part_draw_dsc, draw_ctx); + part_draw_dsc.rect_dsc = &indic_dsc; + part_draw_dsc.class_p = MY_CLASS; + part_draw_dsc.type = LV_CHECKBOX_DRAW_PART_BOX; + part_draw_dsc.draw_area = &marker_area_transf; + part_draw_dsc.part = LV_PART_INDICATOR; + + lv_event_send(obj, LV_EVENT_DRAW_PART_BEGIN, &part_draw_dsc); + lv_draw_rect(draw_ctx, &indic_dsc, &marker_area_transf); + lv_event_send(obj, LV_EVENT_DRAW_PART_END, &part_draw_dsc); + + lv_coord_t line_space = lv_obj_get_style_text_line_space(obj, LV_PART_MAIN); + lv_coord_t letter_space = lv_obj_get_style_text_letter_space(obj, LV_PART_MAIN); + + lv_point_t txt_size; + lv_txt_get_size(&txt_size, cb->txt, font, letter_space, line_space, LV_COORD_MAX, LV_TEXT_FLAG_NONE); + + lv_draw_label_dsc_t txt_dsc; + lv_draw_label_dsc_init(&txt_dsc); + lv_obj_init_draw_label_dsc(obj, LV_PART_MAIN, &txt_dsc); + + lv_coord_t y_ofs = (lv_area_get_height(&marker_area) - font_h) / 2; + lv_area_t txt_area; + txt_area.x1 = marker_area.x2 + bg_colp; + txt_area.x2 = txt_area.x1 + txt_size.x; + txt_area.y1 = obj->coords.y1 + bg_topp + y_ofs; + txt_area.y2 = txt_area.y1 + txt_size.y; + + lv_draw_label(draw_ctx, &txt_dsc, &txt_area, cb->txt, NULL); +} +#endif diff --git a/lib/lvgl/src/widgets/lv_checkbox.h b/lib/lvgl/src/widgets/lv_checkbox.h new file mode 100644 index 00000000..772f500d --- /dev/null +++ b/lib/lvgl/src/widgets/lv_checkbox.h @@ -0,0 +1,97 @@ +/** + * @file lv_cb.h + * + */ + +#ifndef LV_CHECKBOX_H +#define LV_CHECKBOX_H + +#ifdef __cplusplus +extern "C" { +#endif + +/********************* + * INCLUDES + *********************/ +#include "../lv_conf_internal.h" +#include "../core/lv_obj.h" + +#if LV_USE_CHECKBOX != 0 + +/********************* + * DEFINES + *********************/ + +/********************** + * TYPEDEFS + **********************/ + +typedef struct { + lv_obj_t obj; + char * txt; + uint32_t static_txt : 1; +} lv_checkbox_t; + +extern const lv_obj_class_t lv_checkbox_class; + +/** + * `type` field in `lv_obj_draw_part_dsc_t` if `class_p = lv_checkbox_class` + * Used in `LV_EVENT_DRAW_PART_BEGIN` and `LV_EVENT_DRAW_PART_END` + */ +typedef enum { + LV_CHECKBOX_DRAW_PART_BOX, /**< The tick box*/ +} lv_checkbox_draw_part_type_t; + +/********************** + * GLOBAL PROTOTYPES + **********************/ + +/** + * Create a check box object + * @param parent pointer to an object, it will be the parent of the new button + * @return pointer to the created check box + */ +lv_obj_t * lv_checkbox_create(lv_obj_t * parent); + +/*===================== + * Setter functions + *====================*/ + +/** + * Set the text of a check box. `txt` will be copied and may be deallocated + * after this function returns. + * @param cb pointer to a check box + * @param txt the text of the check box. NULL to refresh with the current text. + */ +void lv_checkbox_set_text(lv_obj_t * obj, const char * txt); + +/** + * Set the text of a check box. `txt` must not be deallocated during the life + * of this checkbox. + * @param cb pointer to a check box + * @param txt the text of the check box. + */ +void lv_checkbox_set_text_static(lv_obj_t * obj, const char * txt); + +/*===================== + * Getter functions + *====================*/ + +/** + * Get the text of a check box + * @param cb pointer to check box object + * @return pointer to the text of the check box + */ +const char * lv_checkbox_get_text(const lv_obj_t * obj); + +/********************** + * MACROS + **********************/ + +#endif /*LV_USE_CHECKBOX*/ + +#ifdef __cplusplus +} /*extern "C"*/ +#endif + +#endif /*LV_CHECKBOX_H*/ diff --git a/lib/lvgl/src/widgets/lv_dropdown.c b/lib/lvgl/src/widgets/lv_dropdown.c new file mode 100644 index 00000000..241d1777 --- /dev/null +++ b/lib/lvgl/src/widgets/lv_dropdown.c @@ -0,0 +1,1147 @@ +/** + * @file lv_dropdown.c + * + */ + +/********************* + * INCLUDES + *********************/ +#include "../core/lv_obj.h" +#include "lv_dropdown.h" +#if LV_USE_DROPDOWN != 0 + +#include "../misc/lv_assert.h" +#include "../draw/lv_draw.h" +#include "../core/lv_group.h" +#include "../core/lv_indev.h" +#include "../core/lv_disp.h" +#include "../font/lv_symbol_def.h" +#include "../misc/lv_anim.h" +#include "../misc/lv_math.h" +#include "../misc/lv_txt_ap.h" +#include <string.h> + +/********************* + * DEFINES + *********************/ +#define MY_CLASS &lv_dropdown_class +#define MY_CLASS_LIST &lv_dropdownlist_class + +#define LV_DROPDOWN_PR_NONE 0xFFFF + +/********************** + * TYPEDEFS + **********************/ + +/********************** + * STATIC PROTOTYPES + **********************/ +static lv_obj_t * lv_dropdown_list_create(lv_obj_t * parent); +static void lv_dropdown_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj); +static void lv_dropdown_destructor(const lv_obj_class_t * class_p, lv_obj_t * obj); +static void lv_dropdown_event(const lv_obj_class_t * class_p, lv_event_t * e); +static void draw_main(lv_event_t * e); + +static void lv_dropdownlist_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj); +static void lv_dropdownlist_destructor(const lv_obj_class_t * class_p, lv_obj_t * list_obj); +static void lv_dropdown_list_event(const lv_obj_class_t * class_p, lv_event_t * e); +static void draw_list(lv_event_t * e); + +static void draw_box(lv_obj_t * dropdown_obj, lv_draw_ctx_t * draw_ctx, uint16_t id, lv_state_t state); +static void draw_box_label(lv_obj_t * dropdown_obj, lv_draw_ctx_t * draw_ctx, uint16_t id, lv_state_t state); +static lv_res_t btn_release_handler(lv_obj_t * obj); +static lv_res_t list_release_handler(lv_obj_t * list_obj); +static void list_press_handler(lv_obj_t * page); +static uint16_t get_id_on_point(lv_obj_t * dropdown_obj, lv_coord_t y); +static void position_to_selected(lv_obj_t * obj); +static lv_obj_t * get_label(const lv_obj_t * obj); + +/********************** + * STATIC VARIABLES + **********************/ +const lv_obj_class_t lv_dropdown_class = { + .constructor_cb = lv_dropdown_constructor, + .destructor_cb = lv_dropdown_destructor, + .event_cb = lv_dropdown_event, + .width_def = LV_DPI_DEF, + .height_def = LV_SIZE_CONTENT, + .instance_size = sizeof(lv_dropdown_t), + .editable = LV_OBJ_CLASS_EDITABLE_TRUE, + .group_def = LV_OBJ_CLASS_GROUP_DEF_TRUE, + .base_class = &lv_obj_class +}; + +const lv_obj_class_t lv_dropdownlist_class = { + .constructor_cb = lv_dropdownlist_constructor, + .destructor_cb = lv_dropdownlist_destructor, + .event_cb = lv_dropdown_list_event, + .instance_size = sizeof(lv_dropdown_list_t), + .base_class = &lv_obj_class +}; + + +/********************** + * MACROS + **********************/ + +/********************** + * GLOBAL FUNCTIONS + **********************/ + +lv_obj_t * lv_dropdown_create(lv_obj_t * parent) +{ + LV_LOG_INFO("begin"); + lv_obj_t * obj = lv_obj_class_create_obj(&lv_dropdown_class, parent); + lv_obj_class_init_obj(obj); + return obj; +} + +/*===================== + * Setter functions + *====================*/ + +void lv_dropdown_set_text(lv_obj_t * obj, const char * txt) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + lv_dropdown_t * dropdown = (lv_dropdown_t *)obj; + if(dropdown->text == txt) return; + + dropdown->text = txt; + + lv_obj_invalidate(obj); +} + +void lv_dropdown_set_options(lv_obj_t * obj, const char * options) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + LV_ASSERT_NULL(options); + + lv_dropdown_t * dropdown = (lv_dropdown_t *)obj; + + /*Count the '\n'-s to determine the number of options*/ + dropdown->option_cnt = 0; + uint32_t i; + for(i = 0; options[i] != '\0'; i++) { + if(options[i] == '\n') dropdown->option_cnt++; + } + dropdown->option_cnt++; /*Last option has no `\n`*/ + dropdown->sel_opt_id = 0; + dropdown->sel_opt_id_orig = 0; + + /*Allocate space for the new text*/ +#if LV_USE_ARABIC_PERSIAN_CHARS == 0 + size_t len = strlen(options) + 1; +#else + size_t len = _lv_txt_ap_calc_bytes_cnt(options) + 1; +#endif + + if(dropdown->options != NULL && dropdown->static_txt == 0) { + lv_mem_free(dropdown->options); + dropdown->options = NULL; + } + + dropdown->options = lv_mem_alloc(len); + + LV_ASSERT_MALLOC(dropdown->options); + if(dropdown->options == NULL) return; + +#if LV_USE_ARABIC_PERSIAN_CHARS == 0 + strcpy(dropdown->options, options); +#else + _lv_txt_ap_proc(options, dropdown->options); +#endif + + /*Now the text is dynamically allocated*/ + dropdown->static_txt = 0; + + lv_obj_invalidate(obj); + if(dropdown->list) lv_obj_invalidate(dropdown->list); +} + +void lv_dropdown_set_options_static(lv_obj_t * obj, const char * options) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + LV_ASSERT_NULL(options); + + lv_dropdown_t * dropdown = (lv_dropdown_t *)obj; + + /*Count the '\n'-s to determine the number of options*/ + dropdown->option_cnt = 0; + uint32_t i; + for(i = 0; options[i] != '\0'; i++) { + if(options[i] == '\n') dropdown->option_cnt++; + } + dropdown->option_cnt++; /*Last option has no `\n`*/ + dropdown->sel_opt_id = 0; + dropdown->sel_opt_id_orig = 0; + + if(dropdown->static_txt == 0 && dropdown->options != NULL) { + lv_mem_free(dropdown->options); + dropdown->options = NULL; + } + + dropdown->static_txt = 1; + dropdown->options = (char *)options; + + lv_obj_invalidate(obj); + if(dropdown->list) lv_obj_invalidate(dropdown->list); +} + +void lv_dropdown_add_option(lv_obj_t * obj, const char * option, uint32_t pos) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + LV_ASSERT_NULL(option); + + lv_dropdown_t * dropdown = (lv_dropdown_t *)obj; + + /*Convert static options to dynamic*/ + if(dropdown->static_txt != 0) { + char * static_options = dropdown->options; + size_t len = strlen(static_options) + 1; + + dropdown->options = lv_mem_alloc(len); + LV_ASSERT_MALLOC(dropdown->options); + if(dropdown->options == NULL) return; + + strcpy(dropdown->options, static_options); + dropdown->static_txt = 0; + } + + /*Allocate space for the new option*/ + size_t old_len = (dropdown->options == NULL) ? 0 : strlen(dropdown->options); +#if LV_USE_ARABIC_PERSIAN_CHARS == 0 + size_t ins_len = strlen(option) + 1; +#else + size_t ins_len = _lv_txt_ap_calc_bytes_cnt(option) + 1; +#endif + + size_t new_len = ins_len + old_len + 2; /*+2 for terminating NULL and possible \n*/ + dropdown->options = lv_mem_realloc(dropdown->options, new_len + 1); + LV_ASSERT_MALLOC(dropdown->options); + if(dropdown->options == NULL) return; + + dropdown->options[old_len] = '\0'; + + /*Find the insert character position*/ + uint32_t insert_pos = old_len; + if(pos != LV_DROPDOWN_POS_LAST) { + uint32_t opcnt = 0; + for(insert_pos = 0; dropdown->options[insert_pos] != 0; insert_pos++) { + if(opcnt == pos) + break; + if(dropdown->options[insert_pos] == '\n') + opcnt++; + } + } + + /*Add delimiter to existing options*/ + if((insert_pos > 0) && (pos >= dropdown->option_cnt)) + _lv_txt_ins(dropdown->options, _lv_txt_encoded_get_char_id(dropdown->options, insert_pos++), "\n"); + + /*Insert the new option, adding \n if necessary*/ + char * ins_buf = lv_mem_buf_get(ins_len + 2); /*+ 2 for terminating NULL and possible \n*/ + LV_ASSERT_MALLOC(ins_buf); + if(ins_buf == NULL) return; +#if LV_USE_ARABIC_PERSIAN_CHARS == 0 + strcpy(ins_buf, option); +#else + _lv_txt_ap_proc(option, ins_buf); +#endif + if(pos < dropdown->option_cnt) strcat(ins_buf, "\n"); + + _lv_txt_ins(dropdown->options, _lv_txt_encoded_get_char_id(dropdown->options, insert_pos), ins_buf); + lv_mem_buf_release(ins_buf); + + dropdown->option_cnt++; + + lv_obj_invalidate(obj); + if(dropdown->list) lv_obj_invalidate(dropdown->list); +} + +void lv_dropdown_clear_options(lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + lv_dropdown_t * dropdown = (lv_dropdown_t *)obj; + if(dropdown->options == NULL) return; + + if(dropdown->static_txt == 0) + lv_mem_free(dropdown->options); + + dropdown->options = NULL; + dropdown->static_txt = 0; + dropdown->option_cnt = 0; + + lv_obj_invalidate(obj); + if(dropdown->list) lv_obj_invalidate(dropdown->list); +} + +void lv_dropdown_set_selected(lv_obj_t * obj, uint16_t sel_opt) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_dropdown_t * dropdown = (lv_dropdown_t *)obj; + if(dropdown->sel_opt_id == sel_opt) return; + + dropdown->sel_opt_id = sel_opt < dropdown->option_cnt ? sel_opt : dropdown->option_cnt - 1; + dropdown->sel_opt_id_orig = dropdown->sel_opt_id; + + lv_obj_invalidate(obj); +} + +void lv_dropdown_set_dir(lv_obj_t * obj, lv_dir_t dir) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_dropdown_t * dropdown = (lv_dropdown_t *)obj; + if(dropdown->dir == dir) return; + + dropdown->dir = dir; + + lv_obj_invalidate(obj); +} + +void lv_dropdown_set_symbol(lv_obj_t * obj, const void * symbol) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_dropdown_t * dropdown = (lv_dropdown_t *)obj; + dropdown->symbol = symbol; + lv_obj_invalidate(obj); +} + +void lv_dropdown_set_selected_highlight(lv_obj_t * obj, bool en) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_dropdown_t * dropdown = (lv_dropdown_t *)obj; + dropdown->selected_highlight = en; + if(dropdown->list) lv_obj_invalidate(dropdown->list); +} + +/*===================== + * Getter functions + *====================*/ + +lv_obj_t * lv_dropdown_get_list(lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + lv_dropdown_t * dropdown = (lv_dropdown_t *)obj; + + return dropdown->list; +} + +const char * lv_dropdown_get_text(lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + lv_dropdown_t * dropdown = (lv_dropdown_t *)obj; + + return dropdown->text; +} + +const char * lv_dropdown_get_options(const lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_dropdown_t * dropdown = (lv_dropdown_t *)obj; + return dropdown->options == NULL ? "" : dropdown->options; +} + +uint16_t lv_dropdown_get_selected(const lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_dropdown_t * dropdown = (lv_dropdown_t *)obj; + + return dropdown->sel_opt_id; +} + +uint16_t lv_dropdown_get_option_cnt(const lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_dropdown_t * dropdown = (lv_dropdown_t *)obj; + + return dropdown->option_cnt; +} + +void lv_dropdown_get_selected_str(const lv_obj_t * obj, char * buf, uint32_t buf_size) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_dropdown_t * dropdown = (lv_dropdown_t *)obj; + + uint32_t i; + uint32_t line = 0; + size_t txt_len; + + if(dropdown->options) { + txt_len = strlen(dropdown->options); + } + else { + buf[0] = '\0'; + return; + } + + for(i = 0; i < txt_len && line != dropdown->sel_opt_id_orig; i++) { + if(dropdown->options[i] == '\n') line++; + } + + uint32_t c; + for(c = 0; i < txt_len && dropdown->options[i] != '\n'; c++, i++) { + if(buf_size && c >= buf_size - 1) { + LV_LOG_WARN("lv_dropdown_get_selected_str: the buffer was too small"); + break; + } + buf[c] = dropdown->options[i]; + } + + buf[c] = '\0'; +} + +int32_t lv_dropdown_get_option_index(lv_obj_t * obj, const char * option) +{ + const char * opts = lv_dropdown_get_options(obj); + uint32_t char_i = 0; + uint32_t opt_i = 0; + const char * start = opts; + + while(start[char_i] != '\0') { + for(char_i = 0; (start[char_i] != '\n') && (start[char_i] != '\0'); char_i++); + + if(memcmp(start, option, LV_MIN(strlen(option), char_i)) == 0) return opt_i; + start = &start[char_i]; + if(start[0] == '\n') start++; + opt_i++; + } + + return -1; +} + + +const char * lv_dropdown_get_symbol(lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + lv_dropdown_t * dropdown = (lv_dropdown_t *)obj; + return dropdown->symbol; +} + +bool lv_dropdown_get_selected_highlight(lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + lv_dropdown_t * dropdown = (lv_dropdown_t *)obj; + return dropdown->selected_highlight; +} + +lv_dir_t lv_dropdown_get_dir(const lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + lv_dropdown_t * dropdown = (lv_dropdown_t *)obj; + return dropdown->dir; +} + +/*===================== + * Other functions + *====================*/ + +void lv_dropdown_open(lv_obj_t * dropdown_obj) +{ + LV_ASSERT_OBJ(dropdown_obj, MY_CLASS); + + lv_dropdown_t * dropdown = (lv_dropdown_t *)dropdown_obj; + + lv_obj_add_state(dropdown_obj, LV_STATE_CHECKED); + lv_obj_set_parent(dropdown->list, lv_obj_get_screen(dropdown_obj)); + lv_obj_move_to_index(dropdown->list, -1); + lv_obj_clear_flag(dropdown->list, LV_OBJ_FLAG_HIDDEN); + + /*To allow styling the list*/ + lv_event_send(dropdown_obj, LV_EVENT_READY, NULL); + + lv_obj_t * label = get_label(dropdown_obj); + lv_label_set_text_static(label, dropdown->options); + lv_obj_set_width(dropdown->list, LV_SIZE_CONTENT); + + lv_obj_update_layout(label); + /*Set smaller width to the width of the button*/ + if(lv_obj_get_width(dropdown->list) <= lv_obj_get_width(dropdown_obj) && + (dropdown->dir == LV_DIR_TOP || dropdown->dir == LV_DIR_BOTTOM)) { + lv_obj_set_width(dropdown->list, lv_obj_get_width(dropdown_obj)); + } + + lv_coord_t label_h = lv_obj_get_height(label); + lv_coord_t border_width = lv_obj_get_style_border_width(dropdown->list, LV_PART_MAIN); + lv_coord_t top = lv_obj_get_style_pad_top(dropdown->list, LV_PART_MAIN) + border_width; + lv_coord_t bottom = lv_obj_get_style_pad_bottom(dropdown->list, LV_PART_MAIN) + border_width; + + lv_coord_t list_fit_h = label_h + top + bottom; + lv_coord_t list_h = list_fit_h; + + lv_dir_t dir = dropdown->dir; + /*No space on the bottom? See if top is better.*/ + if(dropdown->dir == LV_DIR_BOTTOM) { + if(dropdown_obj->coords.y2 + list_h > LV_VER_RES) { + if(dropdown_obj->coords.y1 > LV_VER_RES - dropdown_obj->coords.y2) { + /*There is more space on the top, so make it drop up*/ + dir = LV_DIR_TOP; + list_h = dropdown_obj->coords.y1 - 1; + } + else { + list_h = LV_VER_RES - dropdown_obj->coords.y2 - 1 ; + } + } + } + /*No space on the top? See if bottom is better.*/ + else if(dropdown->dir == LV_DIR_TOP) { + if(dropdown_obj->coords.y1 - list_h < 0) { + if(dropdown_obj->coords.y1 < LV_VER_RES - dropdown_obj->coords.y2) { + /*There is more space on the top, so make it drop up*/ + dir = LV_DIR_BOTTOM; + list_h = LV_VER_RES - dropdown_obj->coords.y2; + } + else { + list_h = dropdown_obj->coords.y1; + } + } + } + + if(list_h > list_fit_h) list_h = list_fit_h; + lv_obj_set_height(dropdown->list, list_h); + + position_to_selected(dropdown_obj); + + if(dir == LV_DIR_BOTTOM) lv_obj_align_to(dropdown->list, dropdown_obj, LV_ALIGN_OUT_BOTTOM_LEFT, 0, 0); + else if(dir == LV_DIR_TOP) lv_obj_align_to(dropdown->list, dropdown_obj, LV_ALIGN_OUT_TOP_LEFT, 0, 0); + else if(dir == LV_DIR_LEFT) lv_obj_align_to(dropdown->list, dropdown_obj, LV_ALIGN_OUT_LEFT_TOP, 0, 0); + else if(dir == LV_DIR_RIGHT) lv_obj_align_to(dropdown->list, dropdown_obj, LV_ALIGN_OUT_RIGHT_TOP, 0, 0); + + lv_obj_update_layout(dropdown->list); + + if(dropdown->dir == LV_DIR_LEFT || dropdown->dir == LV_DIR_RIGHT) { + lv_coord_t y1 = lv_obj_get_y(dropdown->list); + lv_coord_t y2 = lv_obj_get_y2(dropdown->list); + if(y2 >= LV_VER_RES) { + lv_obj_set_y(dropdown->list, y1 - (y2 - LV_VER_RES) - 1); + } + } + + lv_text_align_t align = lv_obj_calculate_style_text_align(label, LV_PART_MAIN, dropdown->options); + + switch(align) { + default: + case LV_TEXT_ALIGN_LEFT: + lv_obj_align(label, LV_ALIGN_TOP_LEFT, 0, 0); + break; + case LV_TEXT_ALIGN_RIGHT: + lv_obj_align(label, LV_ALIGN_TOP_RIGHT, 0, 0); + break; + case LV_TEXT_ALIGN_CENTER: + lv_obj_align(label, LV_ALIGN_TOP_MID, 0, 0); + break; + + } +} + +void lv_dropdown_close(lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_obj_clear_state(obj, LV_STATE_CHECKED); + lv_dropdown_t * dropdown = (lv_dropdown_t *)obj; + + dropdown->pr_opt_id = LV_DROPDOWN_PR_NONE; + lv_obj_add_flag(dropdown->list, LV_OBJ_FLAG_HIDDEN); + + lv_event_send(obj, LV_EVENT_CANCEL, NULL); +} + +bool lv_dropdown_is_open(lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + lv_dropdown_t * dropdown = (lv_dropdown_t *)obj; + + return lv_obj_has_flag(dropdown->list, LV_OBJ_FLAG_HIDDEN) ? false : true; +} + +/********************** + * STATIC FUNCTIONS + **********************/ + +static lv_obj_t * lv_dropdown_list_create(lv_obj_t * parent) +{ + LV_LOG_INFO("begin"); + lv_obj_t * obj = lv_obj_class_create_obj(&lv_dropdownlist_class, parent); + lv_obj_class_init_obj(obj); + return obj; +} + +static void lv_dropdown_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj) +{ + LV_UNUSED(class_p); + LV_TRACE_OBJ_CREATE("begin"); + + lv_dropdown_t * dropdown = (lv_dropdown_t *)obj; + + /*Initialize the allocated 'ext'*/ + dropdown->list = NULL; + dropdown->options = NULL; + dropdown->symbol = LV_SYMBOL_DOWN; + dropdown->text = NULL; + dropdown->static_txt = 1; + dropdown->selected_highlight = 1; + dropdown->sel_opt_id = 0; + dropdown->sel_opt_id_orig = 0; + dropdown->pr_opt_id = LV_DROPDOWN_PR_NONE; + dropdown->option_cnt = 0; + dropdown->dir = LV_DIR_BOTTOM; + + lv_obj_add_flag(obj, LV_OBJ_FLAG_SCROLL_ON_FOCUS); + lv_dropdown_set_options_static(obj, "Option 1\nOption 2\nOption 3"); + + dropdown->list = lv_dropdown_list_create(lv_obj_get_screen(obj)); + lv_dropdown_list_t * list = (lv_dropdown_list_t *)dropdown->list; + list->dropdown = obj; + + LV_TRACE_OBJ_CREATE("finished"); +} + +static void lv_dropdown_destructor(const lv_obj_class_t * class_p, lv_obj_t * obj) +{ + LV_UNUSED(class_p); + lv_dropdown_t * dropdown = (lv_dropdown_t *)obj; + + if(dropdown->list) { + lv_obj_del(dropdown->list); + dropdown->list = NULL; + } + + if(!dropdown->static_txt) { + lv_mem_free(dropdown->options); + dropdown->options = NULL; + } +} + +static void lv_dropdownlist_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj) +{ + LV_UNUSED(class_p); + LV_TRACE_OBJ_CREATE("begin"); + + lv_obj_clear_flag(obj, LV_OBJ_FLAG_SCROLL_ON_FOCUS); + lv_obj_clear_flag(obj, LV_OBJ_FLAG_CLICK_FOCUSABLE); + lv_obj_add_flag(obj, LV_OBJ_FLAG_IGNORE_LAYOUT); + lv_obj_add_flag(obj, LV_OBJ_FLAG_HIDDEN); + + lv_label_create(obj); + + LV_TRACE_OBJ_CREATE("finished"); +} + +static void lv_dropdownlist_destructor(const lv_obj_class_t * class_p, lv_obj_t * list_obj) +{ + LV_UNUSED(class_p); + lv_dropdown_list_t * list = (lv_dropdown_list_t *)list_obj; + lv_obj_t * dropdown_obj = list->dropdown; + lv_dropdown_t * dropdown = (lv_dropdown_t *)dropdown_obj; + dropdown->list = NULL; +} + +static void lv_dropdown_event(const lv_obj_class_t * class_p, lv_event_t * e) +{ + LV_UNUSED(class_p); + + lv_res_t res; + + /*Call the ancestor's event handler*/ + res = lv_obj_event_base(MY_CLASS, e); + if(res != LV_RES_OK) return; + + lv_event_code_t code = lv_event_get_code(e); + lv_obj_t * obj = lv_event_get_target(e); + lv_dropdown_t * dropdown = (lv_dropdown_t *)obj; + + if(code == LV_EVENT_FOCUSED) { + lv_group_t * g = lv_obj_get_group(obj); + bool editing = lv_group_get_editing(g); + lv_indev_type_t indev_type = lv_indev_get_type(lv_indev_get_act()); + + /*Encoders need special handling*/ + if(indev_type == LV_INDEV_TYPE_ENCODER) { + /*Open the list if editing*/ + if(editing) { + lv_dropdown_open(obj); + } + /*Close the list if navigating*/ + else { + dropdown->sel_opt_id = dropdown->sel_opt_id_orig; + lv_dropdown_close(obj); + } + } + } + else if(code == LV_EVENT_DEFOCUSED || code == LV_EVENT_LEAVE) { + lv_dropdown_close(obj); + } + else if(code == LV_EVENT_RELEASED) { + res = btn_release_handler(obj); + if(res != LV_RES_OK) return; + } + else if(code == LV_EVENT_STYLE_CHANGED) { + lv_obj_refresh_self_size(obj); + } + else if(code == LV_EVENT_SIZE_CHANGED) { + lv_obj_refresh_self_size(obj); + } + else if(code == LV_EVENT_GET_SELF_SIZE) { + lv_point_t * p = lv_event_get_param(e); + const lv_font_t * font = lv_obj_get_style_text_font(obj, LV_PART_MAIN); + p->y = lv_font_get_line_height(font); + } + else if(code == LV_EVENT_KEY) { + char c = *((char *)lv_event_get_param(e)); + if(c == LV_KEY_RIGHT || c == LV_KEY_DOWN) { + if(!lv_dropdown_is_open(obj)) { + lv_dropdown_open(obj); + } + else if(dropdown->sel_opt_id + 1 < dropdown->option_cnt) { + dropdown->sel_opt_id++; + position_to_selected(obj); + } + } + else if(c == LV_KEY_LEFT || c == LV_KEY_UP) { + + if(!lv_dropdown_is_open(obj)) { + lv_dropdown_open(obj); + } + else if(dropdown->sel_opt_id > 0) { + dropdown->sel_opt_id--; + position_to_selected(obj); + } + } + else if(c == LV_KEY_ESC) { + dropdown->sel_opt_id = dropdown->sel_opt_id_orig; + lv_dropdown_close(obj); + } + else if(c == LV_KEY_ENTER) { + /* Handle the ENTER key only if it was send by an other object. + * Do no process it if ENTER is sent by the dropdown because it's handled in LV_EVENT_RELEASED */ + lv_obj_t * indev_obj = lv_indev_get_obj_act(); + if(indev_obj != obj) { + res = btn_release_handler(obj); + if(res != LV_RES_OK) return; + } + } + } + else if(code == LV_EVENT_DRAW_MAIN) { + draw_main(e); + } +} + +static void lv_dropdown_list_event(const lv_obj_class_t * class_p, lv_event_t * e) +{ + LV_UNUSED(class_p); + + lv_res_t res; + + /*Call the ancestor's event handler*/ + lv_event_code_t code = lv_event_get_code(e); + if(code != LV_EVENT_DRAW_POST) { + res = lv_obj_event_base(MY_CLASS_LIST, e); + if(res != LV_RES_OK) return; + } + lv_obj_t * list = lv_event_get_target(e); + lv_obj_t * dropdown_obj = ((lv_dropdown_list_t *)list)->dropdown; + lv_dropdown_t * dropdown = (lv_dropdown_t *)dropdown_obj; + + if(code == LV_EVENT_RELEASED) { + if(lv_indev_get_scroll_obj(lv_indev_get_act()) == NULL) { + list_release_handler(list); + } + } + else if(code == LV_EVENT_PRESSED) { + list_press_handler(list); + } + else if(code == LV_EVENT_SCROLL_BEGIN) { + dropdown->pr_opt_id = LV_DROPDOWN_PR_NONE; + lv_obj_invalidate(list); + } + else if(code == LV_EVENT_DRAW_POST) { + draw_list(e); + res = lv_obj_event_base(MY_CLASS_LIST, e); + if(res != LV_RES_OK) return; + } +} + + +static void draw_main(lv_event_t * e) +{ + lv_obj_t * obj = lv_event_get_target(e); + lv_dropdown_t * dropdown = (lv_dropdown_t *)obj; + lv_draw_ctx_t * draw_ctx = lv_event_get_draw_ctx(e); + + lv_coord_t border_width = lv_obj_get_style_border_width(obj, LV_PART_MAIN); + lv_coord_t left = lv_obj_get_style_pad_left(obj, LV_PART_MAIN) + border_width; + lv_coord_t right = lv_obj_get_style_pad_right(obj, LV_PART_MAIN) + border_width; + lv_coord_t top = lv_obj_get_style_pad_top(obj, LV_PART_MAIN) + border_width; + + lv_draw_label_dsc_t symbol_dsc; + lv_draw_label_dsc_init(&symbol_dsc); + lv_obj_init_draw_label_dsc(obj, LV_PART_INDICATOR, &symbol_dsc); + + /*If no text specified use the selected option*/ + const char * opt_txt; + if(dropdown->text) opt_txt = dropdown->text; + else { + char * buf = lv_mem_buf_get(128); + lv_dropdown_get_selected_str(obj, buf, 128); + opt_txt = buf; + } + + bool symbol_to_left = false; + if(dropdown->dir == LV_DIR_LEFT) symbol_to_left = true; + if(lv_obj_get_style_base_dir(obj, LV_PART_MAIN) == LV_BASE_DIR_RTL) symbol_to_left = true; + + if(dropdown->symbol) { + lv_img_src_t symbol_type = lv_img_src_get_type(dropdown->symbol); + lv_coord_t symbol_w; + lv_coord_t symbol_h; + if(symbol_type == LV_IMG_SRC_SYMBOL) { + lv_point_t size; + lv_txt_get_size(&size, dropdown->symbol, symbol_dsc.font, symbol_dsc.letter_space, symbol_dsc.line_space, LV_COORD_MAX, + symbol_dsc.flag); + symbol_w = size.x; + symbol_h = size.y; + } + else { + lv_img_header_t header; + lv_res_t res = lv_img_decoder_get_info(dropdown->symbol, &header); + if(res == LV_RES_OK) { + symbol_w = header.w; + symbol_h = header.h; + } + else { + symbol_w = -1; + symbol_h = -1; + } + } + + lv_area_t symbol_area; + if(symbol_to_left) { + symbol_area.x1 = obj->coords.x1 + left; + symbol_area.x2 = symbol_area.x1 + symbol_w - 1; + } + else { + symbol_area.x1 = obj->coords.x2 - right - symbol_w; + symbol_area.x2 = symbol_area.x1 + symbol_w - 1; + } + + if(symbol_type == LV_IMG_SRC_SYMBOL) { + symbol_area.y1 = obj->coords.y1 + top; + symbol_area.y2 = symbol_area.y1 + symbol_h - 1; + lv_draw_label(draw_ctx, &symbol_dsc, &symbol_area, dropdown->symbol, NULL); + } + else { + symbol_area.y1 = obj->coords.y1 + (lv_obj_get_height(obj) - symbol_h) / 2; + symbol_area.y2 = symbol_area.y1 + symbol_h - 1; + lv_draw_img_dsc_t img_dsc; + lv_draw_img_dsc_init(&img_dsc); + lv_obj_init_draw_img_dsc(obj, LV_PART_INDICATOR, &img_dsc); + img_dsc.pivot.x = symbol_w / 2; + img_dsc.pivot.y = symbol_h / 2; + img_dsc.angle = lv_obj_get_style_transform_angle(obj, LV_PART_INDICATOR); + lv_draw_img(draw_ctx, &img_dsc, &symbol_area, dropdown->symbol); + } + } + + lv_draw_label_dsc_t label_dsc; + lv_draw_label_dsc_init(&label_dsc); + lv_obj_init_draw_label_dsc(obj, LV_PART_MAIN, &label_dsc); + + lv_point_t size; + lv_txt_get_size(&size, opt_txt, label_dsc.font, label_dsc.letter_space, label_dsc.line_space, LV_COORD_MAX, + label_dsc.flag); + + lv_area_t txt_area; + txt_area.y1 = obj->coords.y1 + top; + txt_area.y2 = txt_area.y1 + size.y; + /*Center align the text if no symbol*/ + if(dropdown->symbol == NULL) { + txt_area.x1 = obj->coords.x1 + (lv_obj_get_width(obj) - size.x) / 2; + txt_area.x2 = txt_area.x1 + size.x; + } + else { + /*Text to the right*/ + if(symbol_to_left) { + txt_area.x1 = obj->coords.x2 - right - size.x; + txt_area.x2 = txt_area.x1 + size.x; + } + else { + txt_area.x1 = obj->coords.x1 + left; + txt_area.x2 = txt_area.x1 + size.x; + } + } + lv_draw_label(draw_ctx, &label_dsc, &txt_area, opt_txt, NULL); + + if(dropdown->text == NULL) { + lv_mem_buf_release((char *)opt_txt); + } +} + +static void draw_list(lv_event_t * e) +{ + lv_obj_t * list_obj = lv_event_get_target(e); + lv_dropdown_list_t * list = (lv_dropdown_list_t *)list_obj; + lv_obj_t * dropdown_obj = list->dropdown; + lv_dropdown_t * dropdown = (lv_dropdown_t *)dropdown_obj; + lv_draw_ctx_t * draw_ctx = lv_event_get_draw_ctx(e); + + /* Clip area might be too large too to shadow but + * the selected option can be drawn on only the background*/ + lv_area_t clip_area_core; + bool has_common; + has_common = _lv_area_intersect(&clip_area_core, draw_ctx->clip_area, &dropdown->list->coords); + if(has_common) { + const lv_area_t * clip_area_ori = draw_ctx->clip_area; + draw_ctx->clip_area = &clip_area_core; + if(dropdown->selected_highlight) { + if(dropdown->pr_opt_id == dropdown->sel_opt_id) { + draw_box(dropdown_obj, draw_ctx, dropdown->pr_opt_id, LV_STATE_CHECKED | LV_STATE_PRESSED); + draw_box_label(dropdown_obj, draw_ctx, dropdown->pr_opt_id, LV_STATE_CHECKED | LV_STATE_PRESSED); + } + else { + draw_box(dropdown_obj, draw_ctx, dropdown->pr_opt_id, LV_STATE_PRESSED); + draw_box_label(dropdown_obj, draw_ctx, dropdown->pr_opt_id, LV_STATE_PRESSED); + draw_box(dropdown_obj, draw_ctx, dropdown->sel_opt_id, LV_STATE_CHECKED); + draw_box_label(dropdown_obj, draw_ctx, dropdown->sel_opt_id, LV_STATE_CHECKED); + } + } + else { + draw_box(dropdown_obj, draw_ctx, dropdown->pr_opt_id, LV_STATE_PRESSED); + draw_box_label(dropdown_obj, draw_ctx, dropdown->pr_opt_id, LV_STATE_PRESSED); + } + draw_ctx->clip_area = clip_area_ori; + } +} + +static void draw_box(lv_obj_t * dropdown_obj, lv_draw_ctx_t * draw_ctx, uint16_t id, lv_state_t state) +{ + if(id == LV_DROPDOWN_PR_NONE) return; + + lv_dropdown_t * dropdown = (lv_dropdown_t *)dropdown_obj; + lv_obj_t * list_obj = dropdown->list; + lv_state_t state_ori = list_obj->state; + + if(state != list_obj->state) { + list_obj->state = state; + list_obj->skip_trans = 1; + } + + /*Draw a rectangle under the selected item*/ + const lv_font_t * font = lv_obj_get_style_text_font(list_obj, LV_PART_SELECTED); + lv_coord_t line_space = lv_obj_get_style_text_line_space(list_obj, LV_PART_SELECTED); + lv_coord_t font_h = lv_font_get_line_height(font); + + /*Draw the selected*/ + lv_obj_t * label = get_label(dropdown_obj); + lv_area_t rect_area; + rect_area.y1 = label->coords.y1; + rect_area.y1 += id * (font_h + line_space); + rect_area.y1 -= line_space / 2; + + rect_area.y2 = rect_area.y1 + font_h + line_space - 1; + rect_area.x1 = dropdown->list->coords.x1; + rect_area.x2 = dropdown->list->coords.x2; + + lv_draw_rect_dsc_t sel_rect; + lv_draw_rect_dsc_init(&sel_rect); + lv_obj_init_draw_rect_dsc(list_obj, LV_PART_SELECTED, &sel_rect); + lv_draw_rect(draw_ctx, &sel_rect, &rect_area); + + list_obj->state = state_ori; + list_obj->skip_trans = 0; +} + +static void draw_box_label(lv_obj_t * dropdown_obj, lv_draw_ctx_t * draw_ctx, uint16_t id, lv_state_t state) +{ + if(id == LV_DROPDOWN_PR_NONE) return; + + lv_dropdown_t * dropdown = (lv_dropdown_t *)dropdown_obj; + lv_obj_t * list_obj = dropdown->list; + lv_state_t state_orig = list_obj->state; + + if(state != list_obj->state) { + list_obj->state = state; + list_obj->skip_trans = 1; + } + + lv_draw_label_dsc_t label_dsc; + lv_draw_label_dsc_init(&label_dsc); + lv_obj_init_draw_label_dsc(list_obj, LV_PART_SELECTED, &label_dsc); + + label_dsc.line_space = lv_obj_get_style_text_line_space(list_obj, + LV_PART_SELECTED); /*Line space should come from the list*/ + + lv_obj_t * label = get_label(dropdown_obj); + if(label == NULL) return; + + lv_coord_t font_h = lv_font_get_line_height(label_dsc.font); + + lv_area_t area_sel; + area_sel.y1 = label->coords.y1; + area_sel.y1 += id * (font_h + label_dsc.line_space); + area_sel.y1 -= label_dsc.line_space / 2; + + area_sel.y2 = area_sel.y1 + font_h + label_dsc.line_space - 1; + area_sel.x1 = list_obj->coords.x1; + area_sel.x2 = list_obj->coords.x2; + lv_area_t mask_sel; + bool area_ok; + area_ok = _lv_area_intersect(&mask_sel, draw_ctx->clip_area, &area_sel); + if(area_ok) { + const lv_area_t * clip_area_ori = draw_ctx->clip_area; + draw_ctx->clip_area = &mask_sel; + lv_draw_label(draw_ctx, &label_dsc, &label->coords, lv_label_get_text(label), NULL); + draw_ctx->clip_area = clip_area_ori; + } + list_obj->state = state_orig; + list_obj->skip_trans = 0; +} + + +static lv_res_t btn_release_handler(lv_obj_t * obj) +{ + lv_dropdown_t * dropdown = (lv_dropdown_t *)obj; + lv_indev_t * indev = lv_indev_get_act(); + if(lv_indev_get_scroll_obj(indev) == NULL) { + if(lv_dropdown_is_open(obj)) { + lv_dropdown_close(obj); + if(dropdown->sel_opt_id_orig != dropdown->sel_opt_id) { + dropdown->sel_opt_id_orig = dropdown->sel_opt_id; + lv_res_t res; + uint32_t id = dropdown->sel_opt_id; /*Just to use uint32_t in event data*/ + res = lv_event_send(obj, LV_EVENT_VALUE_CHANGED, &id); + if(res != LV_RES_OK) return res; + lv_obj_invalidate(obj); + } + lv_indev_type_t indev_type = lv_indev_get_type(indev); + if(indev_type == LV_INDEV_TYPE_ENCODER) { + lv_group_set_editing(lv_obj_get_group(obj), false); + } + } + else { + lv_dropdown_open(obj); + } + } + else { + dropdown->sel_opt_id = dropdown->sel_opt_id_orig; + lv_obj_invalidate(obj); + } + return LV_RES_OK; +} + +/** + * Called when a drop down list is released to open it or set new option + * @param list pointer to the drop down list's list + * @return LV_RES_INV if the list is not being deleted in the user callback. Else LV_RES_OK + */ +static lv_res_t list_release_handler(lv_obj_t * list_obj) +{ + lv_dropdown_list_t * list = (lv_dropdown_list_t *) list_obj; + lv_obj_t * dropdown_obj = list->dropdown; + lv_dropdown_t * dropdown = (lv_dropdown_t *)dropdown_obj; + + lv_indev_t * indev = lv_indev_get_act(); + /*Leave edit mode once a new item is selected*/ + if(lv_indev_get_type(indev) == LV_INDEV_TYPE_ENCODER) { + dropdown->sel_opt_id_orig = dropdown->sel_opt_id; + lv_group_t * g = lv_obj_get_group(dropdown_obj); + if(lv_group_get_editing(g)) { + lv_group_set_editing(g, false); + } + } + + /*Search the clicked option (For KEYPAD and ENCODER the new value should be already set)*/ + if(lv_indev_get_type(indev) == LV_INDEV_TYPE_POINTER || lv_indev_get_type(indev) == LV_INDEV_TYPE_BUTTON) { + lv_point_t p; + lv_indev_get_point(indev, &p); + dropdown->sel_opt_id = get_id_on_point(dropdown_obj, p.y); + dropdown->sel_opt_id_orig = dropdown->sel_opt_id; + } + + lv_dropdown_close(dropdown_obj); + + /*Invalidate to refresh the text*/ + if(dropdown->text == NULL) lv_obj_invalidate(dropdown_obj); + + uint32_t id = dropdown->sel_opt_id; /*Just to use uint32_t in event data*/ + lv_res_t res = lv_event_send(dropdown_obj, LV_EVENT_VALUE_CHANGED, &id); + if(res != LV_RES_OK) return res; + + return LV_RES_OK; +} + +static void list_press_handler(lv_obj_t * list_obj) +{ + lv_dropdown_list_t * list = (lv_dropdown_list_t *) list_obj; + lv_obj_t * dropdown_obj = list->dropdown; + lv_dropdown_t * dropdown = (lv_dropdown_t *)dropdown_obj; + + lv_indev_t * indev = lv_indev_get_act(); + if(indev && (lv_indev_get_type(indev) == LV_INDEV_TYPE_POINTER || lv_indev_get_type(indev) == LV_INDEV_TYPE_BUTTON)) { + lv_point_t p; + lv_indev_get_point(indev, &p); + dropdown->pr_opt_id = get_id_on_point(dropdown_obj, p.y); + lv_obj_invalidate(list_obj); + } +} + +static uint16_t get_id_on_point(lv_obj_t * dropdown_obj, lv_coord_t y) +{ + lv_dropdown_t * dropdown = (lv_dropdown_t *)dropdown_obj; + lv_obj_t * label = get_label(dropdown_obj); + if(label == NULL) return 0; + y -= label->coords.y1; + + const lv_font_t * font = lv_obj_get_style_text_font(label, LV_PART_MAIN); + lv_coord_t font_h = lv_font_get_line_height(font); + lv_coord_t line_space = lv_obj_get_style_text_line_space(label, LV_PART_MAIN); + + y += line_space / 2; + lv_coord_t h = font_h + line_space; + + uint16_t opt = y / h; + + if(opt >= dropdown->option_cnt) opt = dropdown->option_cnt - 1; + return opt; +} + +/** + * Set the position of list when it is closed to show the selected item + * @param ddlist pointer to a drop down list + */ +static void position_to_selected(lv_obj_t * dropdown_obj) +{ + lv_dropdown_t * dropdown = (lv_dropdown_t *)dropdown_obj; + + lv_obj_t * label = get_label(dropdown_obj); + if(label == NULL) return; + + if(lv_obj_get_height(label) <= lv_obj_get_content_height(dropdown_obj)) return; + + const lv_font_t * font = lv_obj_get_style_text_font(label, LV_PART_MAIN); + lv_coord_t font_h = lv_font_get_line_height(font); + lv_coord_t line_space = lv_obj_get_style_text_line_space(label, LV_PART_MAIN); + lv_coord_t unit_h = font_h + line_space; + lv_coord_t line_y1 = dropdown->sel_opt_id * unit_h; + + /*Scroll to the selected option*/ + lv_obj_scroll_to_y(dropdown->list, line_y1, LV_ANIM_OFF); + lv_obj_invalidate(dropdown->list); +} + +static lv_obj_t * get_label(const lv_obj_t * obj) +{ + lv_dropdown_t * dropdown = (lv_dropdown_t *)obj; + if(dropdown->list == NULL) return NULL; + + return lv_obj_get_child(dropdown->list, 0); +} + +#endif diff --git a/lib/lvgl/src/widgets/lv_dropdown.h b/lib/lvgl/src/widgets/lv_dropdown.h new file mode 100644 index 00000000..0c55e862 --- /dev/null +++ b/lib/lvgl/src/widgets/lv_dropdown.h @@ -0,0 +1,254 @@ +/** + * @file lv_dropdown.h + * + */ + +#ifndef LV_DROPDOWN_H +#define LV_DROPDOWN_H + +#ifdef __cplusplus +extern "C" { +#endif + +/********************* + * INCLUDES + *********************/ +#include "../lv_conf_internal.h" + +#if LV_USE_DROPDOWN != 0 + +/*Testing of dependencies*/ + +#if LV_USE_LABEL == 0 +#error "lv_dropdown: lv_label is required. Enable it in lv_conf.h (LV_USE_LABEL 1)" +#endif + +#include "../widgets/lv_label.h" + +/********************* + * DEFINES + *********************/ +#define LV_DROPDOWN_POS_LAST 0xFFFF +LV_EXPORT_CONST_INT(LV_DROPDOWN_POS_LAST); + +/********************** + * TYPEDEFS + **********************/ + +typedef struct { + lv_obj_t obj; + lv_obj_t * list; /**< The dropped down list*/ + const char * text; /**< Text to display on the dropdown's button*/ + const void * symbol; /**< Arrow or other icon when the drop-down list is closed*/ + char * options; /**< Options in a '\n' separated list*/ + uint16_t option_cnt; /**< Number of options*/ + uint16_t sel_opt_id; /**< Index of the currently selected option*/ + uint16_t sel_opt_id_orig; /**< Store the original index on focus*/ + uint16_t pr_opt_id; /**< Index of the currently pressed option*/ + lv_dir_t dir : 4; /**< Direction in which the list should open*/ + uint8_t static_txt : 1; /**< 1: Only a pointer is saved in `options`*/ + uint8_t selected_highlight: 1; /**< 1: Make the selected option highlighted in the list*/ +} lv_dropdown_t; + +typedef struct { + lv_obj_t obj; + lv_obj_t * dropdown; +} lv_dropdown_list_t; + +extern const lv_obj_class_t lv_dropdown_class; +extern const lv_obj_class_t lv_dropdownlist_class; + +/********************** + * GLOBAL PROTOTYPES + **********************/ + +/** + * Create a drop-down list object + * @param parent pointer to an object, it will be the parent of the new drop-down list + * @return pointer to the created drop-down list + */ +lv_obj_t * lv_dropdown_create(lv_obj_t * parent); + +/*===================== + * Setter functions + *====================*/ + +/** + * Set text of the drop-down list's button. + * If set to `NULL` the selected option's text will be displayed on the button. + * If set to a specific text then that text will be shown regardless of the selected option. + * @param obj pointer to a drop-down list object + * @param txt the text as a string (Only its pointer is saved) + */ +void lv_dropdown_set_text(lv_obj_t * obj, const char * txt); + +/** + * Set the options in a drop-down list from a string. + * The options will be copied and saved in the object so the `options` can be destroyed after calling this function + * @param obj pointer to drop-down list object + * @param options a string with '\n' separated options. E.g. "One\nTwo\nThree" + */ +void lv_dropdown_set_options(lv_obj_t * obj, const char * options); + +/** + * Set the options in a drop-down list from a static string (global, static or dynamically allocated). + * Only the pointer of the option string will be saved. + * @param obj pointer to drop-down list object + * @param options a static string with '\n' separated options. E.g. "One\nTwo\nThree" + */ +void lv_dropdown_set_options_static(lv_obj_t * obj, const char * options); + +/** + * Add an options to a drop-down list from a string. Only works for non-static options. + * @param obj pointer to drop-down list object + * @param option a string without '\n'. E.g. "Four" + * @param pos the insert position, indexed from 0, LV_DROPDOWN_POS_LAST = end of string + */ +void lv_dropdown_add_option(lv_obj_t * obj, const char * option, uint32_t pos); + +/** + * Clear all options in a drop-down list. Works with both static and dynamic options. + * @param obj pointer to drop-down list object + */ +void lv_dropdown_clear_options(lv_obj_t * obj); + +/** + * Set the selected option + * @param obj pointer to drop-down list object + * @param sel_opt id of the selected option (0 ... number of option - 1); + */ +void lv_dropdown_set_selected(lv_obj_t * obj, uint16_t sel_opt); + +/** + * Set the direction of the a drop-down list + * @param obj pointer to a drop-down list object + * @param dir LV_DIR_LEFT/RIGHT/TOP/BOTTOM + */ +void lv_dropdown_set_dir(lv_obj_t * obj, lv_dir_t dir); + +/** + * Set an arrow or other symbol to display when on drop-down list's button. Typically a down caret or arrow. + * @param obj pointer to drop-down list object + * @param symbol a text like `LV_SYMBOL_DOWN`, an image (pointer or path) or NULL to not draw symbol icon + * @note angle and zoom transformation can be applied if the symbol is an image. + * E.g. when drop down is checked (opened) rotate the symbol by 180 degree + */ +void lv_dropdown_set_symbol(lv_obj_t * obj, const void * symbol); + +/** + * Set whether the selected option in the list should be highlighted or not + * @param obj pointer to drop-down list object + * @param en true: highlight enabled; false: disabled + */ +void lv_dropdown_set_selected_highlight(lv_obj_t * obj, bool en); + +/*===================== + * Getter functions + *====================*/ + +/** + * Get the list of a drop-down to allow styling or other modifications + * @param obj pointer to a drop-down list object + * @return pointer to the list of the drop-down + */ +lv_obj_t * lv_dropdown_get_list(lv_obj_t * obj); + +/** + * Get text of the drop-down list's button. + * @param obj pointer to a drop-down list object + * @return the text as string, `NULL` if no text + */ +const char * lv_dropdown_get_text(lv_obj_t * obj); + +/** + * Get the options of a drop-down list + * @param obj pointer to drop-down list object + * @return the options separated by '\n'-s (E.g. "Option1\nOption2\nOption3") + */ +const char * lv_dropdown_get_options(const lv_obj_t * obj); + +/** + * Get the index of the selected option + * @param obj pointer to drop-down list object + * @return index of the selected option (0 ... number of option - 1); + */ +uint16_t lv_dropdown_get_selected(const lv_obj_t * obj); + +/** + * Get the total number of options + * @param obj pointer to drop-down list object + * @return the total number of options in the list + */ +uint16_t lv_dropdown_get_option_cnt(const lv_obj_t * obj); + +/** + * Get the current selected option as a string + * @param obj pointer to drop-down object + * @param buf pointer to an array to store the string + * @param buf_size size of `buf` in bytes. 0: to ignore it. + */ +void lv_dropdown_get_selected_str(const lv_obj_t * obj, char * buf, uint32_t buf_size); + +/** + * Get the index of an option. + * @param obj pointer to drop-down object + * @param option an option as string + * @return index of `option` in the list of all options. -1 if not found. + */ +int32_t lv_dropdown_get_option_index(lv_obj_t * obj, const char * option); + +/** + * Get the symbol on the drop-down list. Typically a down caret or arrow. + * @param obj pointer to drop-down list object + * @return the symbol or NULL if not enabled + */ +const char * lv_dropdown_get_symbol(lv_obj_t * obj); + +/** + * Get whether the selected option in the list should be highlighted or not + * @param obj pointer to drop-down list object + * @return true: highlight enabled; false: disabled + */ +bool lv_dropdown_get_selected_highlight(lv_obj_t * obj); + +/** + * Get the direction of the drop-down list + * @param obj pointer to a drop-down list object + * @return LV_DIR_LEF/RIGHT/TOP/BOTTOM + */ +lv_dir_t lv_dropdown_get_dir(const lv_obj_t * obj); + +/*===================== + * Other functions + *====================*/ + +/** + * Open the drop.down list + * @param obj pointer to drop-down list object + */ +void lv_dropdown_open(lv_obj_t * dropdown_obj); + +/** + * Close (Collapse) the drop-down list + * @param obj pointer to drop-down list object + */ +void lv_dropdown_close(lv_obj_t * obj); + +/** + * Tells whether the list is opened or not + * @param obj pointer to a drop-down list object + * @return true if the list os opened + */ +bool lv_dropdown_is_open(lv_obj_t * obj); + +/********************** + * MACROS + **********************/ + +#endif /*LV_USE_DROPDOWN*/ + +#ifdef __cplusplus +} /*extern "C"*/ +#endif + +#endif /*LV_DROPDOWN_H*/ diff --git a/lib/lvgl/src/widgets/lv_img.c b/lib/lvgl/src/widgets/lv_img.c new file mode 100644 index 00000000..f47a789e --- /dev/null +++ b/lib/lvgl/src/widgets/lv_img.c @@ -0,0 +1,693 @@ +/** + * @file lv_img.c + * + */ + +/********************* + * INCLUDES + *********************/ +#include "lv_img.h" +#if LV_USE_IMG != 0 + +#include "../core/lv_disp.h" +#include "../misc/lv_assert.h" +#include "../draw/lv_img_decoder.h" +#include "../misc/lv_fs.h" +#include "../misc/lv_txt.h" +#include "../misc/lv_math.h" +#include "../misc/lv_log.h" + +/********************* + * DEFINES + *********************/ +#define MY_CLASS &lv_img_class + +/********************** + * TYPEDEFS + **********************/ + +/********************** + * STATIC PROTOTYPES + **********************/ +static void lv_img_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj); +static void lv_img_destructor(const lv_obj_class_t * class_p, lv_obj_t * obj); +static void lv_img_event(const lv_obj_class_t * class_p, lv_event_t * e); +static void draw_img(lv_event_t * e); + +/********************** + * STATIC VARIABLES + **********************/ +const lv_obj_class_t lv_img_class = { + .constructor_cb = lv_img_constructor, + .destructor_cb = lv_img_destructor, + .event_cb = lv_img_event, + .width_def = LV_SIZE_CONTENT, + .height_def = LV_SIZE_CONTENT, + .instance_size = sizeof(lv_img_t), + .base_class = &lv_obj_class +}; + +/********************** + * MACROS + **********************/ + +/********************** + * GLOBAL FUNCTIONS + **********************/ + +lv_obj_t * lv_img_create(lv_obj_t * parent) +{ + LV_LOG_INFO("begin"); + lv_obj_t * obj = lv_obj_class_create_obj(MY_CLASS, parent); + lv_obj_class_init_obj(obj); + return obj; +} + +/*===================== + * Setter functions + *====================*/ + +void lv_img_set_src(lv_obj_t * obj, const void * src) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_obj_invalidate(obj); + + lv_img_src_t src_type = lv_img_src_get_type(src); + lv_img_t * img = (lv_img_t *)obj; + +#if LV_USE_LOG && LV_LOG_LEVEL >= LV_LOG_LEVEL_INFO + switch(src_type) { + case LV_IMG_SRC_FILE: + LV_LOG_TRACE("lv_img_set_src: `LV_IMG_SRC_FILE` type found"); + break; + case LV_IMG_SRC_VARIABLE: + LV_LOG_TRACE("lv_img_set_src: `LV_IMG_SRC_VARIABLE` type found"); + break; + case LV_IMG_SRC_SYMBOL: + LV_LOG_TRACE("lv_img_set_src: `LV_IMG_SRC_SYMBOL` type found"); + break; + default: + LV_LOG_WARN("lv_img_set_src: unknown type"); + } +#endif + + /*If the new source type is unknown free the memories of the old source*/ + if(src_type == LV_IMG_SRC_UNKNOWN) { + LV_LOG_WARN("lv_img_set_src: unknown image type"); + if(img->src_type == LV_IMG_SRC_SYMBOL || img->src_type == LV_IMG_SRC_FILE) { + lv_mem_free((void *)img->src); + } + img->src = NULL; + img->src_type = LV_IMG_SRC_UNKNOWN; + return; + } + + lv_img_header_t header; + lv_img_decoder_get_info(src, &header); + + /*Save the source*/ + if(src_type == LV_IMG_SRC_VARIABLE) { + /*If memory was allocated because of the previous `src_type` then free it*/ + if(img->src_type == LV_IMG_SRC_FILE || img->src_type == LV_IMG_SRC_SYMBOL) { + lv_mem_free((void *)img->src); + } + img->src = src; + } + else if(src_type == LV_IMG_SRC_FILE || src_type == LV_IMG_SRC_SYMBOL) { + /*If the new and the old src are the same then it was only a refresh.*/ + if(img->src != src) { + const void * old_src = NULL; + /*If memory was allocated because of the previous `src_type` then save its pointer and free after allocation. + *It's important to allocate first to be sure the new data will be on a new address. + *Else `img_cache` wouldn't see the change in source.*/ + if(img->src_type == LV_IMG_SRC_FILE || img->src_type == LV_IMG_SRC_SYMBOL) { + old_src = img->src; + } + char * new_str = lv_mem_alloc(strlen(src) + 1); + LV_ASSERT_MALLOC(new_str); + if(new_str == NULL) return; + strcpy(new_str, src); + img->src = new_str; + + if(old_src) lv_mem_free((void *)old_src); + } + } + + if(src_type == LV_IMG_SRC_SYMBOL) { + /*`lv_img_dsc_get_info` couldn't set the width and height of a font so set it here*/ + const lv_font_t * font = lv_obj_get_style_text_font(obj, LV_PART_MAIN); + lv_coord_t letter_space = lv_obj_get_style_text_letter_space(obj, LV_PART_MAIN); + lv_coord_t line_space = lv_obj_get_style_text_line_space(obj, LV_PART_MAIN); + lv_point_t size; + lv_txt_get_size(&size, src, font, letter_space, line_space, LV_COORD_MAX, LV_TEXT_FLAG_NONE); + header.w = size.x; + header.h = size.y; + } + + img->src_type = src_type; + img->w = header.w; + img->h = header.h; + img->cf = header.cf; + img->pivot.x = header.w / 2; + img->pivot.y = header.h / 2; + + lv_obj_refresh_self_size(obj); + + /*Provide enough room for the rotated corners*/ + if(img->angle || img->zoom != LV_IMG_ZOOM_NONE) lv_obj_refresh_ext_draw_size(obj); + + lv_obj_invalidate(obj); +} + +void lv_img_set_offset_x(lv_obj_t * obj, lv_coord_t x) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_img_t * img = (lv_img_t *)obj; + + x = x % img->w; + + img->offset.x = x; + lv_obj_invalidate(obj); +} + +void lv_img_set_offset_y(lv_obj_t * obj, lv_coord_t y) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_img_t * img = (lv_img_t *)obj; + + y = y % img->h; + + img->offset.y = y; + lv_obj_invalidate(obj); +} + +void lv_img_set_angle(lv_obj_t * obj, int16_t angle) +{ + if(angle < 0 || angle >= 3600) angle = angle % 3600; + + lv_img_t * img = (lv_img_t *)obj; + if(angle == img->angle) return; + + lv_obj_update_layout(obj); /*Be sure the object's size is calculated*/ + lv_coord_t w = lv_obj_get_width(obj); + lv_coord_t h = lv_obj_get_height(obj); + lv_area_t a; + _lv_img_buf_get_transformed_area(&a, w, h, img->angle, img->zoom, &img->pivot); + a.x1 += obj->coords.x1; + a.y1 += obj->coords.y1; + a.x2 += obj->coords.x1; + a.y2 += obj->coords.y1; + lv_obj_invalidate_area(obj, &a); + + img->angle = angle; + + /* Disable invalidations because lv_obj_refresh_ext_draw_size would invalidate + * the whole ext draw area */ + lv_disp_t * disp = lv_obj_get_disp(obj); + lv_disp_enable_invalidation(disp, false); + lv_obj_refresh_ext_draw_size(obj); + lv_disp_enable_invalidation(disp, true); + + _lv_img_buf_get_transformed_area(&a, w, h, img->angle, img->zoom, &img->pivot); + a.x1 += obj->coords.x1; + a.y1 += obj->coords.y1; + a.x2 += obj->coords.x1; + a.y2 += obj->coords.y1; + lv_obj_invalidate_area(obj, &a); +} + +void lv_img_set_pivot(lv_obj_t * obj, lv_coord_t x, lv_coord_t y) +{ + lv_img_t * img = (lv_img_t *)obj; + if(img->pivot.x == x && img->pivot.y == y) return; + + lv_obj_update_layout(obj); /*Be sure the object's size is calculated*/ + lv_coord_t w = lv_obj_get_width(obj); + lv_coord_t h = lv_obj_get_height(obj); + lv_area_t a; + _lv_img_buf_get_transformed_area(&a, w, h, img->angle, img->zoom, &img->pivot); + a.x1 += obj->coords.x1; + a.y1 += obj->coords.y1; + a.x2 += obj->coords.x1; + a.y2 += obj->coords.y1; + lv_obj_invalidate_area(obj, &a); + + img->pivot.x = x; + img->pivot.y = y; + + /* Disable invalidations because lv_obj_refresh_ext_draw_size would invalidate + * the whole ext draw area */ + lv_disp_t * disp = lv_obj_get_disp(obj); + lv_disp_enable_invalidation(disp, false); + lv_obj_refresh_ext_draw_size(obj); + lv_disp_enable_invalidation(disp, true); + + _lv_img_buf_get_transformed_area(&a, w, h, img->angle, img->zoom, &img->pivot); + a.x1 += obj->coords.x1; + a.y1 += obj->coords.y1; + a.x2 += obj->coords.x1; + a.y2 += obj->coords.y1; + lv_obj_invalidate_area(obj, &a); +} + +void lv_img_set_zoom(lv_obj_t * obj, uint16_t zoom) +{ + lv_img_t * img = (lv_img_t *)obj; + if(zoom == img->zoom) return; + + if(zoom == 0) zoom = 1; + + lv_obj_update_layout(obj); /*Be sure the object's size is calculated*/ + lv_coord_t w = lv_obj_get_width(obj); + lv_coord_t h = lv_obj_get_height(obj); + lv_area_t a; + _lv_img_buf_get_transformed_area(&a, w, h, img->angle, img->zoom >> 8, &img->pivot); + a.x1 += obj->coords.x1 - 1; + a.y1 += obj->coords.y1 - 1; + a.x2 += obj->coords.x1 + 1; + a.y2 += obj->coords.y1 + 1; + lv_obj_invalidate_area(obj, &a); + + img->zoom = zoom; + + /* Disable invalidations because lv_obj_refresh_ext_draw_size would invalidate + * the whole ext draw area */ + lv_disp_t * disp = lv_obj_get_disp(obj); + lv_disp_enable_invalidation(disp, false); + lv_obj_refresh_ext_draw_size(obj); + lv_disp_enable_invalidation(disp, true); + + _lv_img_buf_get_transformed_area(&a, w, h, img->angle, img->zoom, &img->pivot); + a.x1 += obj->coords.x1 - 1; + a.y1 += obj->coords.y1 - 1; + a.x2 += obj->coords.x1 + 1; + a.y2 += obj->coords.y1 + 1; + lv_obj_invalidate_area(obj, &a); +} + +void lv_img_set_antialias(lv_obj_t * obj, bool antialias) +{ + lv_img_t * img = (lv_img_t *)obj; + if(antialias == img->antialias) return; + + img->antialias = antialias; + lv_obj_invalidate(obj); +} + +void lv_img_set_size_mode(lv_obj_t * obj, lv_img_size_mode_t mode) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + lv_img_t * img = (lv_img_t *)obj; + if(mode == img->obj_size_mode) return; + + img->obj_size_mode = mode; + lv_obj_invalidate(obj); +} + +/*===================== + * Getter functions + *====================*/ + +const void * lv_img_get_src(lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_img_t * img = (lv_img_t *)obj; + + return img->src; +} + +lv_coord_t lv_img_get_offset_x(lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_img_t * img = (lv_img_t *)obj; + + return img->offset.x; +} + +lv_coord_t lv_img_get_offset_y(lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_img_t * img = (lv_img_t *)obj; + + return img->offset.y; +} + +uint16_t lv_img_get_angle(lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_img_t * img = (lv_img_t *)obj; + + return img->angle; +} + +void lv_img_get_pivot(lv_obj_t * obj, lv_point_t * pivot) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_img_t * img = (lv_img_t *)obj; + + *pivot = img->pivot; +} + +uint16_t lv_img_get_zoom(lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_img_t * img = (lv_img_t *)obj; + + return img->zoom; +} + +bool lv_img_get_antialias(lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_img_t * img = (lv_img_t *)obj; + + return img->antialias ? true : false; +} + +lv_img_size_mode_t lv_img_get_size_mode(lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + lv_img_t * img = (lv_img_t *)obj; + return img->obj_size_mode; +} + +/********************** + * STATIC FUNCTIONS + **********************/ + +static void lv_img_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj) +{ + LV_UNUSED(class_p); + LV_TRACE_OBJ_CREATE("begin"); + + lv_img_t * img = (lv_img_t *)obj; + + img->src = NULL; + img->src_type = LV_IMG_SRC_UNKNOWN; + img->cf = LV_IMG_CF_UNKNOWN; + img->w = lv_obj_get_width(obj); + img->h = lv_obj_get_height(obj); + img->angle = 0; + img->zoom = LV_IMG_ZOOM_NONE; + img->antialias = LV_COLOR_DEPTH > 8 ? 1 : 0; + img->offset.x = 0; + img->offset.y = 0; + img->pivot.x = 0; + img->pivot.y = 0; + img->obj_size_mode = LV_IMG_SIZE_MODE_VIRTUAL; + + lv_obj_clear_flag(obj, LV_OBJ_FLAG_CLICKABLE); + lv_obj_add_flag(obj, LV_OBJ_FLAG_ADV_HITTEST); + + LV_TRACE_OBJ_CREATE("finished"); +} + +static void lv_img_destructor(const lv_obj_class_t * class_p, lv_obj_t * obj) +{ + LV_UNUSED(class_p); + lv_img_t * img = (lv_img_t *)obj; + if(img->src_type == LV_IMG_SRC_FILE || img->src_type == LV_IMG_SRC_SYMBOL) { + lv_mem_free((void *)img->src); + img->src = NULL; + img->src_type = LV_IMG_SRC_UNKNOWN; + } +} + +static lv_point_t lv_img_get_transformed_size(lv_obj_t * obj) +{ + lv_img_t * img = (lv_img_t *)obj; + + + lv_area_t area_transform; + _lv_img_buf_get_transformed_area(&area_transform, img->w, img->h, + img->angle, img->zoom, &img->pivot); + + return (lv_point_t) { + lv_area_get_width(&area_transform), lv_area_get_height(&area_transform) + }; +} + +static void lv_img_event(const lv_obj_class_t * class_p, lv_event_t * e) +{ + LV_UNUSED(class_p); + + lv_event_code_t code = lv_event_get_code(e); + + /*Ancestor events will be called during drawing*/ + if(code != LV_EVENT_DRAW_MAIN && code != LV_EVENT_DRAW_POST) { + /*Call the ancestor's event handler*/ + lv_res_t res = lv_obj_event_base(MY_CLASS, e); + if(res != LV_RES_OK) return; + } + + lv_obj_t * obj = lv_event_get_target(e); + lv_img_t * img = (lv_img_t *)obj; + + if(code == LV_EVENT_STYLE_CHANGED) { + /*Refresh the file name to refresh the symbol text size*/ + if(img->src_type == LV_IMG_SRC_SYMBOL) { + lv_img_set_src(obj, img->src); + } + else { + /*With transformation it might change*/ + lv_obj_refresh_ext_draw_size(obj); + } + } + else if(code == LV_EVENT_REFR_EXT_DRAW_SIZE) { + + lv_coord_t * s = lv_event_get_param(e); + + /*If the image has angle provide enough room for the rotated corners*/ + if(img->angle || img->zoom != LV_IMG_ZOOM_NONE) { + lv_area_t a; + lv_coord_t w = lv_obj_get_width(obj); + lv_coord_t h = lv_obj_get_height(obj); + _lv_img_buf_get_transformed_area(&a, w, h, img->angle, img->zoom, &img->pivot); + *s = LV_MAX(*s, -a.x1); + *s = LV_MAX(*s, -a.y1); + *s = LV_MAX(*s, a.x2 - w); + *s = LV_MAX(*s, a.y2 - h); + } + } + else if(code == LV_EVENT_HIT_TEST) { + lv_hit_test_info_t * info = lv_event_get_param(e); + + /*If the object is exactly image sized (not cropped, not mosaic) and transformed + *perform hit test on its transformed area*/ + if(img->w == lv_obj_get_width(obj) && img->h == lv_obj_get_height(obj) && + (img->zoom != LV_IMG_ZOOM_NONE || img->angle != 0 || img->pivot.x != img->w / 2 || img->pivot.y != img->h / 2)) { + + lv_coord_t w = lv_obj_get_width(obj); + lv_coord_t h = lv_obj_get_height(obj); + lv_area_t coords; + _lv_img_buf_get_transformed_area(&coords, w, h, img->angle, img->zoom, &img->pivot); + coords.x1 += obj->coords.x1; + coords.y1 += obj->coords.y1; + coords.x2 += obj->coords.x1; + coords.y2 += obj->coords.y1; + + info->res = _lv_area_is_point_on(&coords, info->point, 0); + } + else { + lv_area_t a; + lv_obj_get_click_area(obj, &a); + info->res = _lv_area_is_point_on(&a, info->point, 0); + } + } + else if(code == LV_EVENT_GET_SELF_SIZE) { + lv_point_t * p = lv_event_get_param(e); + if(img->obj_size_mode == LV_IMG_SIZE_MODE_REAL) { + *p = lv_img_get_transformed_size(obj); + } + else { + p->x = img->w; + p->y = img->h; + } + } + else if(code == LV_EVENT_DRAW_MAIN || code == LV_EVENT_DRAW_POST || code == LV_EVENT_COVER_CHECK) { + draw_img(e); + } +} + +static void draw_img(lv_event_t * e) +{ + lv_event_code_t code = lv_event_get_code(e); + lv_obj_t * obj = lv_event_get_target(e); + lv_img_t * img = (lv_img_t *)obj; + if(code == LV_EVENT_COVER_CHECK) { + lv_cover_check_info_t * info = lv_event_get_param(e); + if(info->res == LV_COVER_RES_MASKED) return; + if(img->src_type == LV_IMG_SRC_UNKNOWN || img->src_type == LV_IMG_SRC_SYMBOL) { + info->res = LV_COVER_RES_NOT_COVER; + return; + } + + /*Non true color format might have "holes"*/ + if(img->cf != LV_IMG_CF_TRUE_COLOR && img->cf != LV_IMG_CF_RAW) { + info->res = LV_COVER_RES_NOT_COVER; + return; + } + + /*With not LV_OPA_COVER images can't cover an area */ + if(lv_obj_get_style_img_opa(obj, LV_PART_MAIN) != LV_OPA_COVER) { + info->res = LV_COVER_RES_NOT_COVER; + return; + } + + if(img->angle != 0) { + info->res = LV_COVER_RES_NOT_COVER; + return; + } + + const lv_area_t * clip_area = lv_event_get_param(e); + if(img->zoom == LV_IMG_ZOOM_NONE) { + if(_lv_area_is_in(clip_area, &obj->coords, 0) == false) { + info->res = LV_COVER_RES_NOT_COVER; + return; + } + } + else { + lv_area_t a; + _lv_img_buf_get_transformed_area(&a, lv_obj_get_width(obj), lv_obj_get_height(obj), 0, img->zoom, &img->pivot); + a.x1 += obj->coords.x1; + a.y1 += obj->coords.y1; + a.x2 += obj->coords.x1; + a.y2 += obj->coords.y1; + + if(_lv_area_is_in(clip_area, &a, 0) == false) { + info->res = LV_COVER_RES_NOT_COVER; + return; + } + } + } + else if(code == LV_EVENT_DRAW_MAIN || code == LV_EVENT_DRAW_POST) { + + lv_coord_t obj_w = lv_obj_get_width(obj); + lv_coord_t obj_h = lv_obj_get_height(obj); + + lv_coord_t border_width = lv_obj_get_style_border_width(obj, LV_PART_MAIN); + lv_coord_t pleft = lv_obj_get_style_pad_left(obj, LV_PART_MAIN) + border_width; + lv_coord_t pright = lv_obj_get_style_pad_right(obj, LV_PART_MAIN) + border_width; + lv_coord_t ptop = lv_obj_get_style_pad_top(obj, LV_PART_MAIN) + border_width; + lv_coord_t pbottom = lv_obj_get_style_pad_bottom(obj, LV_PART_MAIN) + border_width; + + lv_point_t bg_pivot; + bg_pivot.x = img->pivot.x + pleft; + bg_pivot.y = img->pivot.y + ptop; + lv_area_t bg_coords; + + if(img->obj_size_mode == LV_IMG_SIZE_MODE_REAL) { + /*Object size equals to transformed image size*/ + lv_obj_get_coords(obj, &bg_coords); + } + else { + _lv_img_buf_get_transformed_area(&bg_coords, obj_w, obj_h, + img->angle, img->zoom, &bg_pivot); + + /*Modify the coordinates to draw the background for the rotated and scaled coordinates*/ + bg_coords.x1 += obj->coords.x1; + bg_coords.y1 += obj->coords.y1; + bg_coords.x2 += obj->coords.x1; + bg_coords.y2 += obj->coords.y1; + } + + lv_area_t ori_coords; + lv_area_copy(&ori_coords, &obj->coords); + lv_area_copy(&obj->coords, &bg_coords); + + lv_res_t res = lv_obj_event_base(MY_CLASS, e); + if(res != LV_RES_OK) return; + + lv_area_copy(&obj->coords, &ori_coords); + + if(code == LV_EVENT_DRAW_MAIN) { + if(img->h == 0 || img->w == 0) return; + if(img->zoom == 0) return; + + lv_draw_ctx_t * draw_ctx = lv_event_get_draw_ctx(e); + + lv_area_t img_max_area; + lv_area_copy(&img_max_area, &obj->coords); + + lv_point_t img_size_final = lv_img_get_transformed_size(obj); + + if(img->obj_size_mode == LV_IMG_SIZE_MODE_REAL) { + img_max_area.x1 -= ((img->w - img_size_final.x) + 1) / 2; + img_max_area.x2 -= ((img->w - img_size_final.x) + 1) / 2; + img_max_area.y1 -= ((img->h - img_size_final.y) + 1) / 2; + img_max_area.y2 -= ((img->h - img_size_final.y) + 1) / 2; + } + else { + img_max_area.x2 = img_max_area.x1 + lv_area_get_width(&bg_coords) - 1; + img_max_area.y2 = img_max_area.y1 + lv_area_get_height(&bg_coords) - 1; + } + + img_max_area.x1 += pleft; + img_max_area.y1 += ptop; + img_max_area.x2 -= pright; + img_max_area.y2 -= pbottom; + + if(img->src_type == LV_IMG_SRC_FILE || img->src_type == LV_IMG_SRC_VARIABLE) { + lv_draw_img_dsc_t img_dsc; + lv_draw_img_dsc_init(&img_dsc); + lv_obj_init_draw_img_dsc(obj, LV_PART_MAIN, &img_dsc); + + img_dsc.zoom = img->zoom; + img_dsc.angle = img->angle; + img_dsc.pivot.x = img->pivot.x; + img_dsc.pivot.y = img->pivot.y; + img_dsc.antialias = img->antialias; + + lv_area_t img_clip_area; + img_clip_area.x1 = bg_coords.x1 + pleft; + img_clip_area.y1 = bg_coords.y1 + ptop; + img_clip_area.x2 = bg_coords.x2 - pright; + img_clip_area.y2 = bg_coords.y2 - pbottom; + const lv_area_t * clip_area_ori = draw_ctx->clip_area; + + if(!_lv_area_intersect(&img_clip_area, draw_ctx->clip_area, &img_clip_area)) return; + draw_ctx->clip_area = &img_clip_area; + + lv_area_t coords_tmp; + coords_tmp.y1 = img_max_area.y1 + img->offset.y; + if(coords_tmp.y1 > img_max_area.y1) coords_tmp.y1 -= img->h; + coords_tmp.y2 = coords_tmp.y1 + img->h - 1; + + for(; coords_tmp.y1 < img_max_area.y2; coords_tmp.y1 += img_size_final.y, coords_tmp.y2 += img_size_final.y) { + coords_tmp.x1 = img_max_area.x1 + img->offset.x; + if(coords_tmp.x1 > img_max_area.x1) coords_tmp.x1 -= img->w; + coords_tmp.x2 = coords_tmp.x1 + img->w - 1; + + for(; coords_tmp.x1 < img_max_area.x2; coords_tmp.x1 += img_size_final.x, coords_tmp.x2 += img_size_final.x) { + lv_draw_img(draw_ctx, &img_dsc, &coords_tmp, img->src); + } + } + draw_ctx->clip_area = clip_area_ori; + } + else if(img->src_type == LV_IMG_SRC_SYMBOL) { + lv_draw_label_dsc_t label_dsc; + lv_draw_label_dsc_init(&label_dsc); + lv_obj_init_draw_label_dsc(obj, LV_PART_MAIN, &label_dsc); + + lv_draw_label(draw_ctx, &label_dsc, &obj->coords, img->src, NULL); + } + else { + /*Trigger the error handler of image draw*/ + LV_LOG_WARN("draw_img: image source type is unknown"); + lv_draw_img(draw_ctx, NULL, &obj->coords, NULL); + } + } + } +} + +#endif diff --git a/lib/lvgl/src/widgets/lv_img.h b/lib/lvgl/src/widgets/lv_img.h new file mode 100644 index 00000000..eb76c8d9 --- /dev/null +++ b/lib/lvgl/src/widgets/lv_img.h @@ -0,0 +1,234 @@ +/** + * @file lv_img.h + * + */ + +#ifndef LV_IMG_H +#define LV_IMG_H + +#ifdef __cplusplus +extern "C" { +#endif + +/********************* + * INCLUDES + *********************/ +#include "../lv_conf_internal.h" + +#if LV_USE_IMG != 0 + +/*Testing of dependencies*/ +#if LV_USE_LABEL == 0 +#error "lv_img: lv_label is required. Enable it in lv_conf.h (LV_USE_LABEL 1)" +#endif + +#include "../core/lv_obj.h" +#include "../misc/lv_fs.h" +#include "../draw/lv_draw.h" + +/********************* + * DEFINES + *********************/ + +/********************** + * TYPEDEFS + **********************/ + +/** + * Data of image + */ +typedef struct { + lv_obj_t obj; + const void * src; /*Image source: Pointer to an array or a file or a symbol*/ + lv_point_t offset; + lv_coord_t w; /*Width of the image (Handled by the library)*/ + lv_coord_t h; /*Height of the image (Handled by the library)*/ + uint16_t angle; /*rotation angle of the image*/ + lv_point_t pivot; /*rotation center of the image*/ + uint16_t zoom; /*256 means no zoom, 512 double size, 128 half size*/ + uint8_t src_type : 2; /*See: lv_img_src_t*/ + uint8_t cf : 5; /*Color format from `lv_img_color_format_t`*/ + uint8_t antialias : 1; /*Apply anti-aliasing in transformations (rotate, zoom)*/ + uint8_t obj_size_mode: 2; /*Image size mode when image size and object size is different.*/ +} lv_img_t; + +extern const lv_obj_class_t lv_img_class; + +/** + * Image size mode, when image size and object size is different + */ +enum { + /** Zoom doesn't affect the coordinates of the object, + * however if zoomed in the image is drawn out of the its coordinates. + * The layout's won't change on zoom */ + LV_IMG_SIZE_MODE_VIRTUAL = 0, + + /** If the object size is set to SIZE_CONTENT, then object size equals zoomed image size. + * It causes layout recalculation. + * If the object size is set explicitly, the image will be cropped when zoomed in.*/ + LV_IMG_SIZE_MODE_REAL, +}; + +typedef uint8_t lv_img_size_mode_t; + +/********************** + * GLOBAL PROTOTYPES + **********************/ + +/** + * Create an image object + * @param parent pointer to an object, it will be the parent of the new image + * @return pointer to the created image + */ +lv_obj_t * lv_img_create(lv_obj_t * parent); + +/*===================== + * Setter functions + *====================*/ + +/** + * Set the image data to display on the object + * @param obj pointer to an image object + * @param src_img 1) pointer to an ::lv_img_dsc_t descriptor (converted by LVGL's image converter) (e.g. &my_img) or + * 2) path to an image file (e.g. "S:/dir/img.bin")or + * 3) a SYMBOL (e.g. LV_SYMBOL_OK) + */ +void lv_img_set_src(lv_obj_t * obj, const void * src); + +/** + * Set an offset for the source of an image so the image will be displayed from the new origin. + * @param obj pointer to an image + * @param x the new offset along x axis. + */ +void lv_img_set_offset_x(lv_obj_t * obj, lv_coord_t x); + +/** + * Set an offset for the source of an image. + * so the image will be displayed from the new origin. + * @param obj pointer to an image + * @param y the new offset along y axis. + */ +void lv_img_set_offset_y(lv_obj_t * obj, lv_coord_t y); + + +/** + * Set the rotation angle of the image. + * The image will be rotated around the set pivot set by `lv_img_set_pivot()` + * Note that indexed and alpha only images can't be transformed. + * @param obj pointer to an image object + * @param angle rotation angle in degree with 0.1 degree resolution (0..3600: clock wise) + */ +void lv_img_set_angle(lv_obj_t * obj, int16_t angle); + +/** + * Set the rotation center of the image. + * The image will be rotated around this point. + * @param obj pointer to an image object + * @param x rotation center x of the image + * @param y rotation center y of the image + */ +void lv_img_set_pivot(lv_obj_t * obj, lv_coord_t x, lv_coord_t y); + + +/** + * Set the zoom factor of the image. + * Note that indexed and alpha only images can't be transformed. + * @param img pointer to an image object + * @param zoom the zoom factor. + * @example 256 or LV_ZOOM_IMG_NONE for no zoom + * @example <256: scale down + * @example >256 scale up + * @example 128 half size + * @example 512 double size + */ +void lv_img_set_zoom(lv_obj_t * obj, uint16_t zoom); + +/** + * Enable/disable anti-aliasing for the transformations (rotate, zoom) or not. + * The quality is better with anti-aliasing looks better but slower. + * @param obj pointer to an image object + * @param antialias true: anti-aliased; false: not anti-aliased + */ +void lv_img_set_antialias(lv_obj_t * obj, bool antialias); + +/** + * Set the image object size mode. + * + * @param obj pointer to an image object + * @param mode the new size mode. + */ +void lv_img_set_size_mode(lv_obj_t * obj, lv_img_size_mode_t mode); +/*===================== + * Getter functions + *====================*/ + +/** + * Get the source of the image + * @param obj pointer to an image object + * @return the image source (symbol, file name or ::lv-img_dsc_t for C arrays) + */ +const void * lv_img_get_src(lv_obj_t * obj); + +/** + * Get the offset's x attribute of the image object. + * @param img pointer to an image + * @return offset X value. + */ +lv_coord_t lv_img_get_offset_x(lv_obj_t * obj); + +/** + * Get the offset's y attribute of the image object. + * @param obj pointer to an image + * @return offset Y value. + */ +lv_coord_t lv_img_get_offset_y(lv_obj_t * obj); + +/** + * Get the rotation angle of the image. + * @param obj pointer to an image object + * @return rotation angle in 0.1 degrees (0..3600) + */ +uint16_t lv_img_get_angle(lv_obj_t * obj); + +/** + * Get the pivot (rotation center) of the image. + * @param img pointer to an image object + * @param pivot store the rotation center here + */ +void lv_img_get_pivot(lv_obj_t * obj, lv_point_t * pivot); + +/** + * Get the zoom factor of the image. + * @param obj pointer to an image object + * @return zoom factor (256: no zoom) + */ +uint16_t lv_img_get_zoom(lv_obj_t * obj); + +/** + * Get whether the transformations (rotate, zoom) are anti-aliased or not + * @param obj pointer to an image object + * @return true: anti-aliased; false: not anti-aliased + */ +bool lv_img_get_antialias(lv_obj_t * obj); + +/** + * Get the size mode of the image + * @param obj pointer to an image object + * @return element of @ref lv_img_size_mode_t + */ +lv_img_size_mode_t lv_img_get_size_mode(lv_obj_t * obj); + +/********************** + * MACROS + **********************/ + +/** Use this macro to declare an image in a C file*/ +#define LV_IMG_DECLARE(var_name) extern const lv_img_dsc_t var_name; + +#endif /*LV_USE_IMG*/ + +#ifdef __cplusplus +} /*extern "C"*/ +#endif + +#endif /*LV_IMG_H*/ diff --git a/lib/lvgl/src/widgets/lv_label.c b/lib/lvgl/src/widgets/lv_label.c new file mode 100644 index 00000000..f4fbe01a --- /dev/null +++ b/lib/lvgl/src/widgets/lv_label.c @@ -0,0 +1,1274 @@ +/** + * @file lv_label.c + * + */ + +/********************* + * INCLUDES + *********************/ +#include "lv_label.h" +#if LV_USE_LABEL != 0 +#include "../core/lv_obj.h" +#include "../misc/lv_assert.h" +#include "../core/lv_group.h" +#include "../draw/lv_draw.h" +#include "../misc/lv_color.h" +#include "../misc/lv_math.h" +#include "../misc/lv_bidi.h" +#include "../misc/lv_txt_ap.h" +#include "../misc/lv_printf.h" + +/********************* + * DEFINES + *********************/ +#define MY_CLASS &lv_label_class + +#define LV_LABEL_DEF_SCROLL_SPEED (lv_disp_get_dpi(lv_obj_get_disp(obj)) / 3) +#define LV_LABEL_SCROLL_DELAY 300 +#define LV_LABEL_DOT_END_INV 0xFFFFFFFF +#define LV_LABEL_HINT_HEIGHT_LIMIT 1024 /*Enable "hint" to buffer info about labels larger than this. (Speed up drawing)*/ + +/********************** + * TYPEDEFS + **********************/ + +/********************** + * STATIC PROTOTYPES + **********************/ +static void lv_label_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj); +static void lv_label_destructor(const lv_obj_class_t * class_p, lv_obj_t * obj); +static void lv_label_event(const lv_obj_class_t * class_p, lv_event_t * e); +static void draw_main(lv_event_t * e); + +static void lv_label_refr_text(lv_obj_t * obj); +static void lv_label_revert_dots(lv_obj_t * label); + +static bool lv_label_set_dot_tmp(lv_obj_t * label, char * data, uint32_t len); +static char * lv_label_get_dot_tmp(lv_obj_t * label); +static void lv_label_dot_tmp_free(lv_obj_t * label); +static void set_ofs_x_anim(void * obj, int32_t v); +static void set_ofs_y_anim(void * obj, int32_t v); + +/********************** + * STATIC VARIABLES + **********************/ +const lv_obj_class_t lv_label_class = { + .constructor_cb = lv_label_constructor, + .destructor_cb = lv_label_destructor, + .event_cb = lv_label_event, + .width_def = LV_SIZE_CONTENT, + .height_def = LV_SIZE_CONTENT, + .instance_size = sizeof(lv_label_t), + .base_class = &lv_obj_class +}; + +/********************** + * MACROS + **********************/ + +/********************** + * GLOBAL FUNCTIONS + **********************/ + +lv_obj_t * lv_label_create(lv_obj_t * parent) +{ + LV_LOG_INFO("begin"); + lv_obj_t * obj = lv_obj_class_create_obj(MY_CLASS, parent); + lv_obj_class_init_obj(obj); + return obj; +} + +/*===================== + * Setter functions + *====================*/ + +void lv_label_set_text(lv_obj_t * obj, const char * text) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + lv_label_t * label = (lv_label_t *)obj; + + lv_obj_invalidate(obj); + + /*If text is NULL then just refresh with the current text*/ + if(text == NULL) text = label->text; + + if(label->text == text && label->static_txt == 0) { + /*If set its own text then reallocate it (maybe its size changed)*/ +#if LV_USE_ARABIC_PERSIAN_CHARS + /*Get the size of the text and process it*/ + size_t len = _lv_txt_ap_calc_bytes_cnt(text); + + label->text = lv_mem_realloc(label->text, len); + LV_ASSERT_MALLOC(label->text); + if(label->text == NULL) return; + + _lv_txt_ap_proc(label->text, label->text); +#else + label->text = lv_mem_realloc(label->text, strlen(label->text) + 1); +#endif + + LV_ASSERT_MALLOC(label->text); + if(label->text == NULL) return; + } + else { + /*Free the old text*/ + if(label->text != NULL && label->static_txt == 0) { + lv_mem_free(label->text); + label->text = NULL; + } + +#if LV_USE_ARABIC_PERSIAN_CHARS + /*Get the size of the text and process it*/ + size_t len = _lv_txt_ap_calc_bytes_cnt(text); + + label->text = lv_mem_alloc(len); + LV_ASSERT_MALLOC(label->text); + if(label->text == NULL) return; + + _lv_txt_ap_proc(text, label->text); +#else + /*Get the size of the text*/ + size_t len = strlen(text) + 1; + + /*Allocate space for the new text*/ + label->text = lv_mem_alloc(len); + LV_ASSERT_MALLOC(label->text); + if(label->text == NULL) return; + strcpy(label->text, text); +#endif + + /*Now the text is dynamically allocated*/ + label->static_txt = 0; + } + + lv_label_refr_text(obj); +} + +void lv_label_set_text_fmt(lv_obj_t * obj, const char * fmt, ...) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + LV_ASSERT_NULL(fmt); + + lv_obj_invalidate(obj); + lv_label_t * label = (lv_label_t *)obj; + + /*If text is NULL then refresh*/ + if(fmt == NULL) { + lv_label_refr_text(obj); + return; + } + + if(label->text != NULL && label->static_txt == 0) { + lv_mem_free(label->text); + label->text = NULL; + } + + va_list args; + va_start(args, fmt); + label->text = _lv_txt_set_text_vfmt(fmt, args); + va_end(args); + label->static_txt = 0; /*Now the text is dynamically allocated*/ + + lv_label_refr_text(obj); +} + +void lv_label_set_text_static(lv_obj_t * obj, const char * text) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + lv_label_t * label = (lv_label_t *)obj; + + if(label->static_txt == 0 && label->text != NULL) { + lv_mem_free(label->text); + label->text = NULL; + } + + if(text != NULL) { + label->static_txt = 1; + label->text = (char *)text; + } + + lv_label_refr_text(obj); +} + +void lv_label_set_long_mode(lv_obj_t * obj, lv_label_long_mode_t long_mode) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_label_t * label = (lv_label_t *)obj; + + /*Delete the old animation (if exists)*/ + lv_anim_del(obj, set_ofs_x_anim); + lv_anim_del(obj, set_ofs_y_anim); + label->offset.x = 0; + label->offset.y = 0; + + if(long_mode == LV_LABEL_LONG_SCROLL || long_mode == LV_LABEL_LONG_SCROLL_CIRCULAR || long_mode == LV_LABEL_LONG_CLIP) + label->expand = 1; + else + label->expand = 0; + + /*Restore the character under the dots*/ + if(label->long_mode == LV_LABEL_LONG_DOT && label->dot_end != LV_LABEL_DOT_END_INV) { + lv_label_revert_dots(obj); + } + + label->long_mode = long_mode; + lv_label_refr_text(obj); +} + +void lv_label_set_recolor(lv_obj_t * obj, bool en) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_label_t * label = (lv_label_t *)obj; + if(label->recolor == en) return; + + label->recolor = en == false ? 0 : 1; + + /*Refresh the text because the potential color codes in text needs to be hidden or revealed*/ + lv_label_refr_text(obj); +} + +void lv_label_set_text_sel_start(lv_obj_t * obj, uint32_t index) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + +#if LV_LABEL_TEXT_SELECTION + lv_label_t * label = (lv_label_t *)obj; + label->sel_start = index; + lv_obj_invalidate(obj); +#else + LV_UNUSED(obj); /*Unused*/ + LV_UNUSED(index); /*Unused*/ +#endif +} + +void lv_label_set_text_sel_end(lv_obj_t * obj, uint32_t index) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + +#if LV_LABEL_TEXT_SELECTION + lv_label_t * label = (lv_label_t *)obj; + label->sel_end = index; + lv_obj_invalidate(obj); +#else + LV_UNUSED(obj); /*Unused*/ + LV_UNUSED(index); /*Unused*/ +#endif +} + +/*===================== + * Getter functions + *====================*/ + +char * lv_label_get_text(const lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + lv_label_t * label = (lv_label_t *)obj; + return label->text; +} + +lv_label_long_mode_t lv_label_get_long_mode(const lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + lv_label_t * label = (lv_label_t *)obj; + return label->long_mode; +} + +bool lv_label_get_recolor(const lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_label_t * label = (lv_label_t *)obj; + return label->recolor == 0 ? false : true; +} + +void lv_label_get_letter_pos(const lv_obj_t * obj, uint32_t char_id, lv_point_t * pos) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + LV_ASSERT_NULL(pos); + + lv_label_t * label = (lv_label_t *)obj; + const char * txt = lv_label_get_text(obj); + lv_text_align_t align = lv_obj_calculate_style_text_align(obj, LV_PART_MAIN, txt); + + if(txt[0] == '\0') { + pos->y = 0; + switch(align) { + case LV_TEXT_ALIGN_LEFT: + pos->x = 0; + break; + case LV_TEXT_ALIGN_RIGHT: + pos->x = lv_obj_get_content_width(obj); + break; + case LV_TEXT_ALIGN_CENTER: + pos->x = lv_obj_get_content_width(obj) / 2; + break; + } + return; + } + + lv_area_t txt_coords; + lv_obj_get_content_coords(obj, &txt_coords); + + uint32_t line_start = 0; + uint32_t new_line_start = 0; + lv_coord_t max_w = lv_area_get_width(&txt_coords); + const lv_font_t * font = lv_obj_get_style_text_font(obj, LV_PART_MAIN); + lv_coord_t line_space = lv_obj_get_style_text_line_space(obj, LV_PART_MAIN); + lv_coord_t letter_space = lv_obj_get_style_text_letter_space(obj, LV_PART_MAIN); + lv_coord_t letter_height = lv_font_get_line_height(font); + lv_coord_t y = 0; + lv_text_flag_t flag = LV_TEXT_FLAG_NONE; + + if(label->recolor != 0) flag |= LV_TEXT_FLAG_RECOLOR; + if(label->expand != 0) flag |= LV_TEXT_FLAG_EXPAND; + if(lv_obj_get_style_width(obj, LV_PART_MAIN) == LV_SIZE_CONTENT && !obj->w_layout) flag |= LV_TEXT_FLAG_FIT; + + uint32_t byte_id = _lv_txt_encoded_get_byte_id(txt, char_id); + + /*Search the line of the index letter*/; + while(txt[new_line_start] != '\0') { + new_line_start += _lv_txt_get_next_line(&txt[line_start], font, letter_space, max_w, NULL, flag); + if(byte_id < new_line_start || txt[new_line_start] == '\0') + break; /*The line of 'index' letter begins at 'line_start'*/ + + y += letter_height + line_space; + line_start = new_line_start; + } + + /*If the last character is line break then go to the next line*/ + if(byte_id > 0) { + if((txt[byte_id - 1] == '\n' || txt[byte_id - 1] == '\r') && txt[byte_id] == '\0') { + y += letter_height + line_space; + line_start = byte_id; + } + } + + const char * bidi_txt; + uint32_t visual_byte_pos; +#if LV_USE_BIDI + lv_base_dir_t base_dir = lv_obj_get_style_base_dir(obj, LV_PART_MAIN); + if(base_dir == LV_BASE_DIR_AUTO) base_dir = _lv_bidi_detect_base_dir(txt); + + char * mutable_bidi_txt = NULL; + /*Handle Bidi*/ + if(new_line_start == byte_id) { + visual_byte_pos = base_dir == LV_BASE_DIR_RTL ? 0 : byte_id - line_start; + bidi_txt = &txt[line_start]; + } + else { + uint32_t line_char_id = _lv_txt_encoded_get_char_id(&txt[line_start], byte_id - line_start); + + bool is_rtl; + uint32_t visual_char_pos = _lv_bidi_get_visual_pos(&txt[line_start], &mutable_bidi_txt, new_line_start - line_start, + base_dir, line_char_id, &is_rtl); + bidi_txt = mutable_bidi_txt; + if(is_rtl) visual_char_pos++; + + visual_byte_pos = _lv_txt_encoded_get_byte_id(bidi_txt, visual_char_pos); + } +#else + bidi_txt = &txt[line_start]; + visual_byte_pos = byte_id - line_start; +#endif + + /*Calculate the x coordinate*/ + lv_coord_t x = lv_txt_get_width(bidi_txt, visual_byte_pos, font, letter_space, flag); + if(char_id != line_start) x += letter_space; + + if(align == LV_TEXT_ALIGN_CENTER) { + lv_coord_t line_w; + line_w = lv_txt_get_width(bidi_txt, new_line_start - line_start, font, letter_space, flag); + x += lv_area_get_width(&txt_coords) / 2 - line_w / 2; + + } + else if(align == LV_TEXT_ALIGN_RIGHT) { + lv_coord_t line_w; + line_w = lv_txt_get_width(bidi_txt, new_line_start - line_start, font, letter_space, flag); + + x += lv_area_get_width(&txt_coords) - line_w; + } + pos->x = x; + pos->y = y; + +#if LV_USE_BIDI + if(mutable_bidi_txt) lv_mem_buf_release(mutable_bidi_txt); +#endif +} + +uint32_t lv_label_get_letter_on(const lv_obj_t * obj, lv_point_t * pos_in) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + LV_ASSERT_NULL(pos_in); + lv_label_t * label = (lv_label_t *)obj; + + lv_point_t pos; + pos.x = pos_in->x - lv_obj_get_style_pad_left(obj, LV_PART_MAIN); + pos.y = pos_in->y - lv_obj_get_style_pad_top(obj, LV_PART_MAIN); + + lv_area_t txt_coords; + lv_obj_get_content_coords(obj, &txt_coords); + const char * txt = lv_label_get_text(obj); + uint32_t line_start = 0; + uint32_t new_line_start = 0; + lv_coord_t max_w = lv_area_get_width(&txt_coords); + const lv_font_t * font = lv_obj_get_style_text_font(obj, LV_PART_MAIN); + lv_coord_t line_space = lv_obj_get_style_text_line_space(obj, LV_PART_MAIN); + lv_coord_t letter_space = lv_obj_get_style_text_letter_space(obj, LV_PART_MAIN); + lv_coord_t letter_height = lv_font_get_line_height(font); + lv_coord_t y = 0; + lv_text_flag_t flag = LV_TEXT_FLAG_NONE; + uint32_t logical_pos; + char * bidi_txt; + + if(label->recolor != 0) flag |= LV_TEXT_FLAG_RECOLOR; + if(label->expand != 0) flag |= LV_TEXT_FLAG_EXPAND; + if(lv_obj_get_style_width(obj, LV_PART_MAIN) == LV_SIZE_CONTENT && !obj->w_layout) flag |= LV_TEXT_FLAG_FIT; + + lv_text_align_t align = lv_obj_calculate_style_text_align(obj, LV_PART_MAIN, label->text); + + /*Search the line of the index letter*/; + while(txt[line_start] != '\0') { + new_line_start += _lv_txt_get_next_line(&txt[line_start], font, letter_space, max_w, NULL, flag); + + if(pos.y <= y + letter_height) { + /*The line is found (stored in 'line_start')*/ + /*Include the NULL terminator in the last line*/ + uint32_t tmp = new_line_start; + uint32_t letter; + letter = _lv_txt_encoded_prev(txt, &tmp); + if(letter != '\n' && txt[new_line_start] == '\0') new_line_start++; + break; + } + y += letter_height + line_space; + + line_start = new_line_start; + } + +#if LV_USE_BIDI + bidi_txt = lv_mem_buf_get(new_line_start - line_start + 1); + uint32_t txt_len = new_line_start - line_start; + if(new_line_start > 0 && txt[new_line_start - 1] == '\0' && txt_len > 0) txt_len--; + _lv_bidi_process_paragraph(txt + line_start, bidi_txt, txt_len, lv_obj_get_style_base_dir(obj, LV_PART_MAIN), NULL, 0); +#else + bidi_txt = (char *)txt + line_start; +#endif + + /*Calculate the x coordinate*/ + lv_coord_t x = 0; + if(align == LV_TEXT_ALIGN_CENTER) { + lv_coord_t line_w; + line_w = lv_txt_get_width(bidi_txt, new_line_start - line_start, font, letter_space, flag); + x += lv_area_get_width(&txt_coords) / 2 - line_w / 2; + } + else if(align == LV_TEXT_ALIGN_RIGHT) { + lv_coord_t line_w; + line_w = lv_txt_get_width(bidi_txt, new_line_start - line_start, font, letter_space, flag); + x += lv_area_get_width(&txt_coords) - line_w; + } + + lv_text_cmd_state_t cmd_state = LV_TEXT_CMD_STATE_WAIT; + + uint32_t i = 0; + uint32_t i_act = i; + + if(new_line_start > 0) { + while(i + line_start < new_line_start) { + /*Get the current letter and the next letter for kerning*/ + /*Be careful 'i' already points to the next character*/ + uint32_t letter; + uint32_t letter_next; + _lv_txt_encoded_letter_next_2(bidi_txt, &letter, &letter_next, &i); + + /*Handle the recolor command*/ + if((flag & LV_TEXT_FLAG_RECOLOR) != 0) { + if(_lv_txt_is_cmd(&cmd_state, bidi_txt[i]) != false) { + continue; /*Skip the letter if it is part of a command*/ + } + } + + lv_coord_t gw = lv_font_get_glyph_width(font, letter, letter_next); + + /*Finish if the x position or the last char of the next line is reached*/ + if(pos.x < x + gw || i + line_start == new_line_start || txt[i_act + line_start] == '\0') { + i = i_act; + break; + } + x += gw; + x += letter_space; + i_act = i; + } + } + +#if LV_USE_BIDI + /*Handle Bidi*/ + uint32_t cid = _lv_txt_encoded_get_char_id(bidi_txt, i); + if(txt[line_start + i] == '\0') { + logical_pos = i; + } + else { + bool is_rtl; + logical_pos = _lv_bidi_get_logical_pos(&txt[line_start], NULL, + txt_len, lv_obj_get_style_base_dir(obj, LV_PART_MAIN), cid, &is_rtl); + if(is_rtl) logical_pos++; + } + lv_mem_buf_release(bidi_txt); +#else + logical_pos = _lv_txt_encoded_get_char_id(bidi_txt, i); +#endif + + return logical_pos + _lv_txt_encoded_get_char_id(txt, line_start); +} + +bool lv_label_is_char_under_pos(const lv_obj_t * obj, lv_point_t * pos) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + LV_ASSERT_NULL(pos); + + lv_area_t txt_coords; + lv_obj_get_content_coords(obj, &txt_coords); + const char * txt = lv_label_get_text(obj); + lv_label_t * label = (lv_label_t *)obj; + uint32_t line_start = 0; + uint32_t new_line_start = 0; + lv_coord_t max_w = lv_area_get_width(&txt_coords); + const lv_font_t * font = lv_obj_get_style_text_font(obj, LV_PART_MAIN); + lv_coord_t line_space = lv_obj_get_style_text_line_space(obj, LV_PART_MAIN); + lv_coord_t letter_space = lv_obj_get_style_text_letter_space(obj, LV_PART_MAIN); + lv_coord_t letter_height = lv_font_get_line_height(font); + lv_text_align_t align = lv_obj_calculate_style_text_align(obj, LV_PART_MAIN, label->text); + + lv_coord_t y = 0; + lv_text_flag_t flag = LV_TEXT_FLAG_NONE; + + if(label->recolor != 0) flag |= LV_TEXT_FLAG_RECOLOR; + if(label->expand != 0) flag |= LV_TEXT_FLAG_EXPAND; + if(lv_obj_get_style_width(obj, LV_PART_MAIN) == LV_SIZE_CONTENT && !obj->w_layout) flag |= LV_TEXT_FLAG_FIT; + + /*Search the line of the index letter*/; + while(txt[line_start] != '\0') { + new_line_start += _lv_txt_get_next_line(&txt[line_start], font, letter_space, max_w, NULL, flag); + + if(pos->y <= y + letter_height) break; /*The line is found (stored in 'line_start')*/ + y += letter_height + line_space; + + line_start = new_line_start; + } + + /*Calculate the x coordinate*/ + lv_coord_t x = 0; + lv_coord_t last_x = 0; + if(align == LV_TEXT_ALIGN_CENTER) { + lv_coord_t line_w; + line_w = lv_txt_get_width(&txt[line_start], new_line_start - line_start, font, letter_space, flag); + x += lv_area_get_width(&txt_coords) / 2 - line_w / 2; + } + else if(align == LV_TEXT_ALIGN_RIGHT) { + lv_coord_t line_w; + line_w = lv_txt_get_width(&txt[line_start], new_line_start - line_start, font, letter_space, flag); + x += lv_area_get_width(&txt_coords) - line_w; + } + + lv_text_cmd_state_t cmd_state = LV_TEXT_CMD_STATE_WAIT; + + uint32_t i = line_start; + uint32_t i_current = i; + uint32_t letter = '\0'; + uint32_t letter_next = '\0'; + + if(new_line_start > 0) { + while(i <= new_line_start - 1) { + /*Get the current letter and the next letter for kerning*/ + /*Be careful 'i' already points to the next character*/ + _lv_txt_encoded_letter_next_2(txt, &letter, &letter_next, &i); + + /*Handle the recolor command*/ + if((flag & LV_TEXT_FLAG_RECOLOR) != 0) { + if(_lv_txt_is_cmd(&cmd_state, txt[i]) != false) { + continue; /*Skip the letter if it is part of a command*/ + } + } + last_x = x; + x += lv_font_get_glyph_width(font, letter, letter_next); + if(pos->x < x) { + i = i_current; + break; + } + x += letter_space; + i_current = i; + } + } + + int32_t max_diff = lv_font_get_glyph_width(font, letter, letter_next) + letter_space + 1; + return (pos->x >= (last_x - letter_space) && pos->x <= (last_x + max_diff)); +} + +uint32_t lv_label_get_text_selection_start(const lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + +#if LV_LABEL_TEXT_SELECTION + lv_label_t * label = (lv_label_t *)obj; + return label->sel_start; + +#else + LV_UNUSED(obj); /*Unused*/ + return LV_LABEL_TEXT_SELECTION_OFF; +#endif +} + +uint32_t lv_label_get_text_selection_end(const lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + +#if LV_LABEL_TEXT_SELECTION + lv_label_t * label = (lv_label_t *)obj; + return label->sel_end; +#else + LV_UNUSED(obj); /*Unused*/ + return LV_LABEL_TEXT_SELECTION_OFF; +#endif +} + +/*===================== + * Other functions + *====================*/ + +void lv_label_ins_text(lv_obj_t * obj, uint32_t pos, const char * txt) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + LV_ASSERT_NULL(txt); + + lv_label_t * label = (lv_label_t *)obj; + + /*Can not append to static text*/ + if(label->static_txt != 0) return; + + lv_obj_invalidate(obj); + + /*Allocate space for the new text*/ + size_t old_len = strlen(label->text); + size_t ins_len = strlen(txt); + size_t new_len = ins_len + old_len; + label->text = lv_mem_realloc(label->text, new_len + 1); + LV_ASSERT_MALLOC(label->text); + if(label->text == NULL) return; + + if(pos == LV_LABEL_POS_LAST) { + pos = _lv_txt_get_encoded_length(label->text); + } + + _lv_txt_ins(label->text, pos, txt); + lv_label_set_text(obj, NULL); +} + +void lv_label_cut_text(lv_obj_t * obj, uint32_t pos, uint32_t cnt) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + lv_label_t * label = (lv_label_t *)obj; + + /*Can not append to static text*/ + if(label->static_txt != 0) return; + + lv_obj_invalidate(obj); + + char * label_txt = lv_label_get_text(obj); + /*Delete the characters*/ + _lv_txt_cut(label_txt, pos, cnt); + + /*Refresh the label*/ + lv_label_refr_text(obj); +} + +/********************** + * STATIC FUNCTIONS + **********************/ + +static void lv_label_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj) +{ + LV_UNUSED(class_p); + LV_TRACE_OBJ_CREATE("begin"); + + lv_label_t * label = (lv_label_t *)obj; + + label->text = NULL; + label->static_txt = 0; + label->recolor = 0; + label->dot_end = LV_LABEL_DOT_END_INV; + label->long_mode = LV_LABEL_LONG_WRAP; + label->offset.x = 0; + label->offset.y = 0; + +#if LV_LABEL_LONG_TXT_HINT + label->hint.line_start = -1; + label->hint.coord_y = 0; + label->hint.y = 0; +#endif + +#if LV_LABEL_TEXT_SELECTION + label->sel_start = LV_DRAW_LABEL_NO_TXT_SEL; + label->sel_end = LV_DRAW_LABEL_NO_TXT_SEL; +#endif + label->dot.tmp_ptr = NULL; + label->dot_tmp_alloc = 0; + + lv_obj_clear_flag(obj, LV_OBJ_FLAG_CLICKABLE); + lv_label_set_long_mode(obj, LV_LABEL_LONG_WRAP); + lv_label_set_text(obj, "Text"); + + + LV_TRACE_OBJ_CREATE("finished"); +} + +static void lv_label_destructor(const lv_obj_class_t * class_p, lv_obj_t * obj) +{ + LV_UNUSED(class_p); + lv_label_t * label = (lv_label_t *)obj; + + lv_label_dot_tmp_free(obj); + if(!label->static_txt) lv_mem_free(label->text); + label->text = NULL; +} + +static void lv_label_event(const lv_obj_class_t * class_p, lv_event_t * e) +{ + LV_UNUSED(class_p); + + lv_res_t res; + + /*Call the ancestor's event handler*/ + res = lv_obj_event_base(MY_CLASS, e); + if(res != LV_RES_OK) return; + + lv_event_code_t code = lv_event_get_code(e); + lv_obj_t * obj = lv_event_get_target(e); + + if(code == LV_EVENT_STYLE_CHANGED) { + /*Revert dots for proper refresh*/ + lv_label_revert_dots(obj); + lv_label_refr_text(obj); + } + else if(code == LV_EVENT_REFR_EXT_DRAW_SIZE) { + /* Italic or other non-typical letters can be drawn of out of the object. + * It happens if box_w + ofs_x > adw_w in the glyph. + * To avoid this add some extra draw area. + * font_h / 4 is an empirical value. */ + const lv_font_t * font = lv_obj_get_style_text_font(obj, LV_PART_MAIN); + lv_coord_t font_h = lv_font_get_line_height(font); + lv_event_set_ext_draw_size(e, font_h / 4); + } + else if(code == LV_EVENT_SIZE_CHANGED) { + lv_label_revert_dots(obj); + lv_label_refr_text(obj); + } + else if(code == LV_EVENT_GET_SELF_SIZE) { + lv_point_t size; + lv_label_t * label = (lv_label_t *)obj; + const lv_font_t * font = lv_obj_get_style_text_font(obj, LV_PART_MAIN); + lv_coord_t letter_space = lv_obj_get_style_text_letter_space(obj, LV_PART_MAIN); + lv_coord_t line_space = lv_obj_get_style_text_line_space(obj, LV_PART_MAIN); + lv_text_flag_t flag = LV_TEXT_FLAG_NONE; + if(label->recolor != 0) flag |= LV_TEXT_FLAG_RECOLOR; + if(label->expand != 0) flag |= LV_TEXT_FLAG_EXPAND; + + lv_coord_t w = lv_obj_get_content_width(obj); + if(lv_obj_get_style_width(obj, LV_PART_MAIN) == LV_SIZE_CONTENT && !obj->w_layout) w = LV_COORD_MAX; + else w = lv_obj_get_content_width(obj); + + lv_txt_get_size(&size, label->text, font, letter_space, line_space, w, flag); + + lv_point_t * self_size = lv_event_get_param(e); + self_size->x = LV_MAX(self_size->x, size.x); + self_size->y = LV_MAX(self_size->y, size.y); + } + else if(code == LV_EVENT_DRAW_MAIN) { + draw_main(e); + } +} + + +static void draw_main(lv_event_t * e) +{ + lv_obj_t * obj = lv_event_get_target(e); + lv_label_t * label = (lv_label_t *)obj; + lv_draw_ctx_t * draw_ctx = lv_event_get_draw_ctx(e); + + lv_area_t txt_coords; + lv_obj_get_content_coords(obj, &txt_coords); + + lv_text_flag_t flag = LV_TEXT_FLAG_NONE; + if(label->recolor != 0) flag |= LV_TEXT_FLAG_RECOLOR; + if(label->expand != 0) flag |= LV_TEXT_FLAG_EXPAND; + if(lv_obj_get_style_width(obj, LV_PART_MAIN) == LV_SIZE_CONTENT && !obj->w_layout) flag |= LV_TEXT_FLAG_FIT; + + lv_draw_label_dsc_t label_draw_dsc; + lv_draw_label_dsc_init(&label_draw_dsc); + + label_draw_dsc.ofs_x = label->offset.x; + label_draw_dsc.ofs_y = label->offset.y; + + label_draw_dsc.flag = flag; + lv_obj_init_draw_label_dsc(obj, LV_PART_MAIN, &label_draw_dsc); + lv_bidi_calculate_align(&label_draw_dsc.align, &label_draw_dsc.bidi_dir, label->text); + + label_draw_dsc.sel_start = lv_label_get_text_selection_start(obj); + label_draw_dsc.sel_end = lv_label_get_text_selection_end(obj); + if(label_draw_dsc.sel_start != LV_DRAW_LABEL_NO_TXT_SEL && label_draw_dsc.sel_end != LV_DRAW_LABEL_NO_TXT_SEL) { + label_draw_dsc.sel_color = lv_obj_get_style_text_color_filtered(obj, LV_PART_SELECTED); + label_draw_dsc.sel_bg_color = lv_obj_get_style_bg_color(obj, LV_PART_SELECTED); + } + + /* In SCROLL and SCROLL_CIRCULAR mode the CENTER and RIGHT are pointless, so remove them. + * (In addition, they will create misalignment in this situation)*/ + if((label->long_mode == LV_LABEL_LONG_SCROLL || label->long_mode == LV_LABEL_LONG_SCROLL_CIRCULAR) && + (label_draw_dsc.align == LV_TEXT_ALIGN_CENTER || label_draw_dsc.align == LV_TEXT_ALIGN_RIGHT)) { + lv_point_t size; + lv_txt_get_size(&size, label->text, label_draw_dsc.font, label_draw_dsc.letter_space, label_draw_dsc.line_space, + LV_COORD_MAX, flag); + if(size.x > lv_area_get_width(&txt_coords)) { + label_draw_dsc.align = LV_TEXT_ALIGN_LEFT; + } + } +#if LV_LABEL_LONG_TXT_HINT + lv_draw_label_hint_t * hint = &label->hint; + if(label->long_mode == LV_LABEL_LONG_SCROLL_CIRCULAR || lv_area_get_height(&txt_coords) < LV_LABEL_HINT_HEIGHT_LIMIT) + hint = NULL; + +#else + /*Just for compatibility*/ + lv_draw_label_hint_t * hint = NULL; +#endif + + lv_area_t txt_clip; + bool is_common = _lv_area_intersect(&txt_clip, &txt_coords, draw_ctx->clip_area); + if(!is_common) return; + + if(label->long_mode == LV_LABEL_LONG_WRAP) { + lv_coord_t s = lv_obj_get_scroll_top(obj); + lv_area_move(&txt_coords, 0, -s); + txt_coords.y2 = obj->coords.y2; + } + if(label->long_mode == LV_LABEL_LONG_SCROLL || label->long_mode == LV_LABEL_LONG_SCROLL_CIRCULAR) { + const lv_area_t * clip_area_ori = draw_ctx->clip_area; + draw_ctx->clip_area = &txt_clip; + lv_draw_label(draw_ctx, &label_draw_dsc, &txt_coords, label->text, hint); + draw_ctx->clip_area = clip_area_ori; + } + else { + lv_draw_label(draw_ctx, &label_draw_dsc, &txt_coords, label->text, hint); + } + + const lv_area_t * clip_area_ori = draw_ctx->clip_area; + draw_ctx->clip_area = &txt_clip; + + if(label->long_mode == LV_LABEL_LONG_SCROLL_CIRCULAR) { + lv_point_t size; + lv_txt_get_size(&size, label->text, label_draw_dsc.font, label_draw_dsc.letter_space, label_draw_dsc.line_space, + LV_COORD_MAX, flag); + + /*Draw the text again on label to the original to make a circular effect */ + if(size.x > lv_area_get_width(&txt_coords)) { + label_draw_dsc.ofs_x = label->offset.x + size.x + + lv_font_get_glyph_width(label_draw_dsc.font, ' ', ' ') * LV_LABEL_WAIT_CHAR_COUNT; + label_draw_dsc.ofs_y = label->offset.y; + + lv_draw_label(draw_ctx, &label_draw_dsc, &txt_coords, label->text, hint); + } + + /*Draw the text again below the original to make a circular effect */ + if(size.y > lv_area_get_height(&txt_coords)) { + label_draw_dsc.ofs_x = label->offset.x; + label_draw_dsc.ofs_y = label->offset.y + size.y + lv_font_get_line_height(label_draw_dsc.font); + + lv_draw_label(draw_ctx, &label_draw_dsc, &txt_coords, label->text, hint); + } + } + + draw_ctx->clip_area = clip_area_ori; +} + +/** + * Refresh the label with its text stored in its extended data + * @param label pointer to a label object + */ +static void lv_label_refr_text(lv_obj_t * obj) +{ + lv_label_t * label = (lv_label_t *)obj; + if(label->text == NULL) return; +#if LV_LABEL_LONG_TXT_HINT + label->hint.line_start = -1; /*The hint is invalid if the text changes*/ +#endif + + lv_area_t txt_coords; + lv_obj_get_content_coords(obj, &txt_coords); + lv_coord_t max_w = lv_area_get_width(&txt_coords); + const lv_font_t * font = lv_obj_get_style_text_font(obj, LV_PART_MAIN); + lv_coord_t line_space = lv_obj_get_style_text_line_space(obj, LV_PART_MAIN); + lv_coord_t letter_space = lv_obj_get_style_text_letter_space(obj, LV_PART_MAIN); + + /*Calc. the height and longest line*/ + lv_point_t size; + lv_text_flag_t flag = LV_TEXT_FLAG_NONE; + if(label->recolor != 0) flag |= LV_TEXT_FLAG_RECOLOR; + if(label->expand != 0) flag |= LV_TEXT_FLAG_EXPAND; + if(lv_obj_get_style_width(obj, LV_PART_MAIN) == LV_SIZE_CONTENT && !obj->w_layout) flag |= LV_TEXT_FLAG_FIT; + + lv_txt_get_size(&size, label->text, font, letter_space, line_space, max_w, flag); + + lv_obj_refresh_self_size(obj); + + /*In scroll mode start an offset animation*/ + if(label->long_mode == LV_LABEL_LONG_SCROLL) { + uint16_t anim_speed = lv_obj_get_style_anim_speed(obj, LV_PART_MAIN); + if(anim_speed == 0) anim_speed = LV_LABEL_DEF_SCROLL_SPEED; + lv_anim_t a; + lv_anim_init(&a); + lv_anim_set_var(&a, obj); + lv_anim_set_repeat_count(&a, LV_ANIM_REPEAT_INFINITE); + lv_anim_set_playback_delay(&a, LV_LABEL_SCROLL_DELAY); + lv_anim_set_repeat_delay(&a, a.playback_delay); + + bool hor_anim = false; + if(size.x > lv_area_get_width(&txt_coords)) { +#if LV_USE_BIDI + int32_t start, end; + lv_base_dir_t base_dir = lv_obj_get_style_base_dir(obj, LV_PART_MAIN); + + if(base_dir == LV_BASE_DIR_AUTO) + base_dir = _lv_bidi_detect_base_dir(label->text); + + if(base_dir == LV_BASE_DIR_RTL) { + start = lv_area_get_width(&txt_coords) - size.x; + end = 0; + } + else { + start = 0; + end = lv_area_get_width(&txt_coords) - size.x; + } + + lv_anim_set_values(&a, start, end); +#else + lv_anim_set_values(&a, 0, lv_area_get_width(&txt_coords) - size.x); + lv_anim_set_exec_cb(&a, set_ofs_x_anim); +#endif + lv_anim_set_exec_cb(&a, set_ofs_x_anim); + + lv_anim_t * anim_cur = lv_anim_get(obj, set_ofs_x_anim); + int32_t act_time = 0; + bool playback_now = false; + if(anim_cur) { + act_time = anim_cur->act_time; + playback_now = anim_cur->playback_now; + } + if(act_time < a.time) { + a.act_time = act_time; /*To keep the old position*/ + a.early_apply = 0; + if(playback_now) { + a.playback_now = 1; + /*Swap the start and end values*/ + int32_t tmp; + tmp = a.start_value; + a.start_value = a.end_value; + a.end_value = tmp; + } + } + + lv_anim_set_time(&a, lv_anim_speed_to_time(anim_speed, a.start_value, a.end_value)); + lv_anim_set_playback_time(&a, a.time); + lv_anim_start(&a); + hor_anim = true; + } + else { + /*Delete the offset animation if not required*/ + lv_anim_del(obj, set_ofs_x_anim); + label->offset.x = 0; + } + + if(size.y > lv_area_get_height(&txt_coords) && hor_anim == false) { + lv_anim_set_values(&a, 0, lv_area_get_height(&txt_coords) - size.y - (lv_font_get_line_height(font))); + lv_anim_set_exec_cb(&a, set_ofs_y_anim); + + lv_anim_t * anim_cur = lv_anim_get(obj, set_ofs_y_anim); + int32_t act_time = 0; + bool playback_now = false; + if(anim_cur) { + act_time = anim_cur->act_time; + playback_now = anim_cur->playback_now; + } + if(act_time < a.time) { + a.act_time = act_time; /*To keep the old position*/ + a.early_apply = 0; + if(playback_now) { + a.playback_now = 1; + /*Swap the start and end values*/ + int32_t tmp; + tmp = a.start_value; + a.start_value = a.end_value; + a.end_value = tmp; + } + } + + lv_anim_set_time(&a, lv_anim_speed_to_time(anim_speed, a.start_value, a.end_value)); + lv_anim_set_playback_time(&a, a.time); + lv_anim_start(&a); + } + else { + /*Delete the offset animation if not required*/ + lv_anim_del(obj, set_ofs_y_anim); + label->offset.y = 0; + } + } + /*In roll inf. mode keep the size but start offset animations*/ + else if(label->long_mode == LV_LABEL_LONG_SCROLL_CIRCULAR) { + const lv_anim_t * anim_template = lv_obj_get_style_anim(obj, LV_PART_MAIN); + uint16_t anim_speed = lv_obj_get_style_anim_speed(obj, LV_PART_MAIN); + if(anim_speed == 0) anim_speed = LV_LABEL_DEF_SCROLL_SPEED; + lv_anim_t a; + lv_anim_init(&a); + lv_anim_set_var(&a, obj); + lv_anim_set_repeat_count(&a, LV_ANIM_REPEAT_INFINITE); + + bool hor_anim = false; + if(size.x > lv_area_get_width(&txt_coords)) { +#if LV_USE_BIDI + int32_t start, end; + lv_base_dir_t base_dir = lv_obj_get_style_base_dir(obj, LV_PART_MAIN); + + if(base_dir == LV_BASE_DIR_AUTO) + base_dir = _lv_bidi_detect_base_dir(label->text); + + if(base_dir == LV_BASE_DIR_RTL) { + start = -size.x - lv_font_get_glyph_width(font, ' ', ' ') * LV_LABEL_WAIT_CHAR_COUNT; + end = 0; + } + else { + start = 0; + end = -size.x - lv_font_get_glyph_width(font, ' ', ' ') * LV_LABEL_WAIT_CHAR_COUNT; + } + + lv_anim_set_values(&a, start, end); +#else + lv_anim_set_values(&a, 0, -size.x - lv_font_get_glyph_width(font, ' ', ' ') * LV_LABEL_WAIT_CHAR_COUNT); +#endif + lv_anim_set_exec_cb(&a, set_ofs_x_anim); + lv_anim_set_time(&a, lv_anim_speed_to_time(anim_speed, a.start_value, a.end_value)); + + lv_anim_t * anim_cur = lv_anim_get(obj, set_ofs_x_anim); + int32_t act_time = anim_cur ? anim_cur->act_time : 0; + + /*If a template animation exists, consider it's start delay and repeat delay*/ + if(anim_template) { + a.act_time = anim_template->act_time; + a.repeat_delay = anim_template->repeat_delay; + } + else if(act_time < a.time) { + a.act_time = act_time; /*To keep the old position when the label text is updated mid-scrolling*/ + a.early_apply = 0; + } + + lv_anim_start(&a); + hor_anim = true; + } + else { + /*Delete the offset animation if not required*/ + lv_anim_del(obj, set_ofs_x_anim); + label->offset.x = 0; + } + + if(size.y > lv_area_get_height(&txt_coords) && hor_anim == false) { + lv_anim_set_values(&a, 0, -size.y - (lv_font_get_line_height(font))); + lv_anim_set_exec_cb(&a, set_ofs_y_anim); + lv_anim_set_time(&a, lv_anim_speed_to_time(anim_speed, a.start_value, a.end_value)); + + lv_anim_t * anim_cur = lv_anim_get(obj, set_ofs_y_anim); + int32_t act_time = anim_cur ? anim_cur->act_time : 0; + + /*If a template animation exists, consider it's start delay and repeat delay*/ + if(anim_template) { + a.act_time = anim_template->act_time; + a.repeat_delay = anim_template->repeat_delay; + } + else if(act_time < a.time) { + a.act_time = act_time; /*To keep the old position when the label text is updated mid-scrolling*/ + a.early_apply = 0; + } + + lv_anim_start(&a); + } + else { + /*Delete the offset animation if not required*/ + lv_anim_del(obj, set_ofs_y_anim); + label->offset.y = 0; + } + } + else if(label->long_mode == LV_LABEL_LONG_DOT) { + if(size.y <= lv_area_get_height(&txt_coords)) { /*No dots are required, the text is short enough*/ + label->dot_end = LV_LABEL_DOT_END_INV; + } + else if(size.y <= lv_font_get_line_height(font)) { /*No dots are required for one-line texts*/ + label->dot_end = LV_LABEL_DOT_END_INV; + } + else if(_lv_txt_get_encoded_length(label->text) <= LV_LABEL_DOT_NUM) { /*Don't turn to dots all the characters*/ + label->dot_end = LV_LABEL_DOT_END_INV; + } + else { + lv_point_t p; + lv_coord_t y_overed; + p.x = lv_area_get_width(&txt_coords) - + (lv_font_get_glyph_width(font, '.', '.') + letter_space) * + LV_LABEL_DOT_NUM; /*Shrink with dots*/ + p.y = lv_area_get_height(&txt_coords); + y_overed = p.y % + (lv_font_get_line_height(font) + line_space); /*Round down to the last line*/ + if(y_overed >= lv_font_get_line_height(font)) { + p.y -= y_overed; + p.y += lv_font_get_line_height(font); + } + else { + p.y -= y_overed; + p.y -= line_space; + } + + uint32_t letter_id = lv_label_get_letter_on(obj, &p); + + /*Be sure there is space for the dots*/ + size_t txt_len = strlen(label->text); + uint32_t byte_id = _lv_txt_encoded_get_byte_id(label->text, letter_id); + while(byte_id + LV_LABEL_DOT_NUM > txt_len) { + _lv_txt_encoded_prev(label->text, &byte_id); + letter_id--; + } + + /*Save letters under the dots and replace them with dots*/ + uint32_t byte_id_ori = byte_id; + uint32_t i; + uint8_t len = 0; + for(i = 0; i <= LV_LABEL_DOT_NUM; i++) { + len += _lv_txt_encoded_size(&label->text[byte_id]); + _lv_txt_encoded_next(label->text, &byte_id); + if(len > LV_LABEL_DOT_NUM || byte_id > txt_len) { + break; + } + } + + if(lv_label_set_dot_tmp(obj, &label->text[byte_id_ori], len)) { + for(i = 0; i < LV_LABEL_DOT_NUM; i++) { + label->text[byte_id_ori + i] = '.'; + } + label->text[byte_id_ori + LV_LABEL_DOT_NUM] = '\0'; + label->dot_end = letter_id + LV_LABEL_DOT_NUM; + } + } + } + else if(label->long_mode == LV_LABEL_LONG_CLIP) { + /*Do nothing*/ + } + + lv_obj_invalidate(obj); +} + + +static void lv_label_revert_dots(lv_obj_t * obj) +{ + + lv_label_t * label = (lv_label_t *)obj; + + if(label->long_mode != LV_LABEL_LONG_DOT) return; + if(label->dot_end == LV_LABEL_DOT_END_INV) return; + uint32_t letter_i = label->dot_end - LV_LABEL_DOT_NUM; + uint32_t byte_i = _lv_txt_encoded_get_byte_id(label->text, letter_i); + + /*Restore the characters*/ + uint8_t i = 0; + char * dot_tmp = lv_label_get_dot_tmp(obj); + while(label->text[byte_i + i] != '\0') { + label->text[byte_i + i] = dot_tmp[i]; + i++; + } + label->text[byte_i + i] = dot_tmp[i]; + lv_label_dot_tmp_free(obj); + + label->dot_end = LV_LABEL_DOT_END_INV; +} + +/** + * Store `len` characters from `data`. Allocates space if necessary. + * + * @param label pointer to label object + * @param len Number of characters to store. + * @return true on success. + */ +static bool lv_label_set_dot_tmp(lv_obj_t * obj, char * data, uint32_t len) +{ + + lv_label_t * label = (lv_label_t *)obj; + lv_label_dot_tmp_free(obj); /*Deallocate any existing space*/ + if(len > sizeof(char *)) { + /*Memory needs to be allocated. Allocates an additional byte + *for a NULL-terminator so it can be copied.*/ + label->dot.tmp_ptr = lv_mem_alloc(len + 1); + if(label->dot.tmp_ptr == NULL) { + LV_LOG_ERROR("Failed to allocate memory for dot_tmp_ptr"); + return false; + } + lv_memcpy(label->dot.tmp_ptr, data, len); + label->dot.tmp_ptr[len] = '\0'; + label->dot_tmp_alloc = true; + } + else { + /*Characters can be directly stored in object*/ + label->dot_tmp_alloc = false; + lv_memcpy(label->dot.tmp, data, len); + } + return true; +} + +/** + * Get the stored dot_tmp characters + * @param label pointer to label object + * @return char pointer to a stored characters. Is *not* necessarily NULL-terminated. + */ +static char * lv_label_get_dot_tmp(lv_obj_t * obj) +{ + lv_label_t * label = (lv_label_t *)obj; + if(label->dot_tmp_alloc) { + return label->dot.tmp_ptr; + } + else { + return label->dot.tmp; + } +} + +/** + * Free the dot_tmp_ptr field if it was previously allocated. + * Always clears the field + * @param label pointer to label object. + */ +static void lv_label_dot_tmp_free(lv_obj_t * obj) +{ + lv_label_t * label = (lv_label_t *)obj; + if(label->dot_tmp_alloc && label->dot.tmp_ptr) { + lv_mem_free(label->dot.tmp_ptr); + } + label->dot_tmp_alloc = false; + label->dot.tmp_ptr = NULL; +} + + +static void set_ofs_x_anim(void * obj, int32_t v) +{ + lv_label_t * label = (lv_label_t *)obj; + label->offset.x = v; + lv_obj_invalidate(obj); +} + +static void set_ofs_y_anim(void * obj, int32_t v) +{ + lv_label_t * label = (lv_label_t *)obj; + label->offset.y = v; + lv_obj_invalidate(obj); +} + + +#endif diff --git a/lib/lvgl/src/widgets/lv_label.h b/lib/lvgl/src/widgets/lv_label.h new file mode 100644 index 00000000..b31a63e5 --- /dev/null +++ b/lib/lvgl/src/widgets/lv_label.h @@ -0,0 +1,246 @@ +/** + * @file lv_label.h + * + */ + +#ifndef LV_LABEL_H +#define LV_LABEL_H + +#ifdef __cplusplus +extern "C" { +#endif + +/********************* + * INCLUDES + *********************/ +#include "../lv_conf_internal.h" + +#if LV_USE_LABEL != 0 + +#include <stdarg.h> +#include "../core/lv_obj.h" +#include "../font/lv_font.h" +#include "../font/lv_symbol_def.h" +#include "../misc/lv_txt.h" +#include "../draw/lv_draw.h" + +/********************* + * DEFINES + *********************/ +#define LV_LABEL_WAIT_CHAR_COUNT 3 +#define LV_LABEL_DOT_NUM 3 +#define LV_LABEL_POS_LAST 0xFFFF +#define LV_LABEL_TEXT_SELECTION_OFF LV_DRAW_LABEL_NO_TXT_SEL + +LV_EXPORT_CONST_INT(LV_LABEL_DOT_NUM); +LV_EXPORT_CONST_INT(LV_LABEL_POS_LAST); +LV_EXPORT_CONST_INT(LV_LABEL_TEXT_SELECTION_OFF); + +/********************** + * TYPEDEFS + **********************/ + +/** Long mode behaviors. Used in 'lv_label_ext_t'*/ +enum { + LV_LABEL_LONG_WRAP, /**< Keep the object width, wrap the too long lines and expand the object height*/ + LV_LABEL_LONG_DOT, /**< Keep the size and write dots at the end if the text is too long*/ + LV_LABEL_LONG_SCROLL, /**< Keep the size and roll the text back and forth*/ + LV_LABEL_LONG_SCROLL_CIRCULAR, /**< Keep the size and roll the text circularly*/ + LV_LABEL_LONG_CLIP, /**< Keep the size and clip the text out of it*/ +}; +typedef uint8_t lv_label_long_mode_t; + +typedef struct { + lv_obj_t obj; + char * text; + union { + char * tmp_ptr; /*Pointer to the allocated memory containing the character replaced by dots*/ + char tmp[LV_LABEL_DOT_NUM + 1]; /*Directly store the characters if <=4 characters*/ + } dot; + uint32_t dot_end; /*The real text length, used in dot mode*/ + +#if LV_LABEL_LONG_TXT_HINT + lv_draw_label_hint_t hint; +#endif + +#if LV_LABEL_TEXT_SELECTION + uint32_t sel_start; + uint32_t sel_end; +#endif + + lv_point_t offset; /*Text draw position offset*/ + lv_label_long_mode_t long_mode : 3; /*Determine what to do with the long texts*/ + uint8_t static_txt : 1; /*Flag to indicate the text is static*/ + uint8_t recolor : 1; /*Enable in-line letter re-coloring*/ + uint8_t expand : 1; /*Ignore real width (used by the library with LV_LABEL_LONG_SCROLL)*/ + uint8_t dot_tmp_alloc : 1; /*1: dot is allocated, 0: dot directly holds up to 4 chars*/ +} lv_label_t; + +extern const lv_obj_class_t lv_label_class; + +/********************** + * GLOBAL PROTOTYPES + **********************/ + +/** + * Create a label object + * @param parent pointer to an object, it will be the parent of the new label. + * @return pointer to the created button + */ +lv_obj_t * lv_label_create(lv_obj_t * parent); + +/*===================== + * Setter functions + *====================*/ + +/** + * Set a new text for a label. Memory will be allocated to store the text by the label. + * @param obj pointer to a label object + * @param text '\0' terminated character string. NULL to refresh with the current text. + */ +void lv_label_set_text(lv_obj_t * obj, const char * text); + +/** + * Set a new formatted text for a label. Memory will be allocated to store the text by the label. + * @param obj pointer to a label object + * @param fmt `printf`-like format + * @example lv_label_set_text_fmt(label1, "%d user", user_num); + */ +void lv_label_set_text_fmt(lv_obj_t * obj, const char * fmt, ...) LV_FORMAT_ATTRIBUTE(2, 3); + +/** + * Set a static text. It will not be saved by the label so the 'text' variable + * has to be 'alive' while the label exists. + * @param obj pointer to a label object + * @param text pointer to a text. NULL to refresh with the current text. + */ +void lv_label_set_text_static(lv_obj_t * obj, const char * text); + +/** + * Set the behavior of the label with longer text then the object size + * @param obj pointer to a label object + * @param long_mode the new mode from 'lv_label_long_mode' enum. + * In LV_LONG_WRAP/DOT/SCROLL/SCROLL_CIRC the size of the label should be set AFTER this function + */ +void lv_label_set_long_mode(lv_obj_t * obj, lv_label_long_mode_t long_mode); + +/** + * Enable the recoloring by in-line commands + * @param obj pointer to a label object + * @param en true: enable recoloring, false: disable + * @example "This is a #ff0000 red# word" + */ +void lv_label_set_recolor(lv_obj_t * obj, bool en); + +/** + * Set where text selection should start + * @param obj pointer to a label object + * @param index character index from where selection should start. `LV_LABEL_TEXT_SELECTION_OFF` for no selection + */ +void lv_label_set_text_sel_start(lv_obj_t * obj, uint32_t index); + +/** + * Set where text selection should end + * @param obj pointer to a label object + * @param index character index where selection should end. `LV_LABEL_TEXT_SELECTION_OFF` for no selection + */ +void lv_label_set_text_sel_end(lv_obj_t * obj, uint32_t index); + +/*===================== + * Getter functions + *====================*/ + +/** + * Get the text of a label + * @param obj pointer to a label object + * @return the text of the label + */ +char * lv_label_get_text(const lv_obj_t * obj); + +/** + * Get the long mode of a label + * @param obj pointer to a label object + * @return the current long mode + */ +lv_label_long_mode_t lv_label_get_long_mode(const lv_obj_t * obj); + +/** + * Get the recoloring attribute + * @param obj pointer to a label object + * @return true: recoloring is enabled, false: disable + */ +bool lv_label_get_recolor(const lv_obj_t * obj); + +/** + * Get the relative x and y coordinates of a letter + * @param obj pointer to a label object + * @param index index of the character [0 ... text length - 1]. + * Expressed in character index, not byte index (different in UTF-8) + * @param pos store the result here (E.g. index = 0 gives 0;0 coordinates if the text if aligned to the left) + */ +void lv_label_get_letter_pos(const lv_obj_t * obj, uint32_t char_id, lv_point_t * pos); + +/** + * Get the index of letter on a relative point of a label. + * @param obj pointer to label object + * @param pos pointer to point with coordinates on a the label + * @return The index of the letter on the 'pos_p' point (E.g. on 0;0 is the 0. letter if aligned to the left) + * Expressed in character index and not byte index (different in UTF-8) + */ +uint32_t lv_label_get_letter_on(const lv_obj_t * obj, lv_point_t * pos_in); + +/** + * Check if a character is drawn under a point. + * @param obj pointer to a label object + * @param pos Point to check for character under + * @return whether a character is drawn under the point + */ +bool lv_label_is_char_under_pos(const lv_obj_t * obj, lv_point_t * pos); + +/** + * @brief Get the selection start index. + * @param obj pointer to a label object. + * @return selection start index. `LV_LABEL_TEXT_SELECTION_OFF` if nothing is selected. + */ +uint32_t lv_label_get_text_selection_start(const lv_obj_t * obj); + +/** + * @brief Get the selection end index. + * @param obj pointer to a label object. + * @return selection end index. `LV_LABEL_TXT_SEL_OFF` if nothing is selected. + */ +uint32_t lv_label_get_text_selection_end(const lv_obj_t * obj); + +/*===================== + * Other functions + *====================*/ + +/** + * Insert a text to a label. The label text can not be static. + * @param obj pointer to a label object + * @param pos character index to insert. Expressed in character index and not byte index. + * 0: before first char. LV_LABEL_POS_LAST: after last char. + * @param txt pointer to the text to insert + */ +void lv_label_ins_text(lv_obj_t * obj, uint32_t pos, const char * txt); + +/** + * Delete characters from a label. The label text can not be static. + * @param obj pointer to a label object + * @param pos character index from where to cut. Expressed in character index and not byte index. + * 0: start in from of the first character + * @param cnt number of characters to cut + */ +void lv_label_cut_text(lv_obj_t * obj, uint32_t pos, uint32_t cnt); + +/********************** + * MACROS + **********************/ + +#endif /*LV_USE_LABEL*/ + +#ifdef __cplusplus +} /*extern "C"*/ +#endif + +#endif /*LV_LABEL_H*/ diff --git a/lib/lvgl/src/widgets/lv_line.c b/lib/lvgl/src/widgets/lv_line.c new file mode 100644 index 00000000..df32bd05 --- /dev/null +++ b/lib/lvgl/src/widgets/lv_line.c @@ -0,0 +1,201 @@ +/** + * @file lv_line.c + * + */ + +/********************* + * INCLUDES + *********************/ +#include "lv_line.h" + +#if LV_USE_LINE != 0 +#include "../misc/lv_assert.h" +#include "../draw/lv_draw.h" +#include "../misc/lv_math.h" +#include <stdbool.h> +#include <stdint.h> +#include <string.h> + +/********************* + * DEFINES + *********************/ +#define MY_CLASS &lv_line_class + +/********************** + * TYPEDEFS + **********************/ + +/********************** + * STATIC PROTOTYPES + **********************/ +static void lv_line_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj); +static void lv_line_event(const lv_obj_class_t * class_p, lv_event_t * e); + +/********************** + * STATIC VARIABLES + **********************/ +const lv_obj_class_t lv_line_class = { + .constructor_cb = lv_line_constructor, + .event_cb = lv_line_event, + .width_def = LV_SIZE_CONTENT, + .height_def = LV_SIZE_CONTENT, + .instance_size = sizeof(lv_line_t), + .base_class = &lv_obj_class +}; + +/********************** + * MACROS + **********************/ + +/********************** + * GLOBAL FUNCTIONS + **********************/ + +lv_obj_t * lv_line_create(lv_obj_t * parent) +{ + LV_LOG_INFO("begin"); + lv_obj_t * obj = lv_obj_class_create_obj(MY_CLASS, parent); + lv_obj_class_init_obj(obj); + return obj; +} + +/*===================== + * Setter functions + *====================*/ + +void lv_line_set_points(lv_obj_t * obj, const lv_point_t points[], uint16_t point_num) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_line_t * line = (lv_line_t *)obj; + line->point_array = points; + line->point_num = point_num; + + lv_obj_refresh_self_size(obj); + + lv_obj_invalidate(obj); +} + +void lv_line_set_y_invert(lv_obj_t * obj, bool en) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_line_t * line = (lv_line_t *)obj; + if(line->y_inv == en) return; + + line->y_inv = en ? 1U : 0U; + + lv_obj_invalidate(obj); +} + +/*===================== + * Getter functions + *====================*/ + +bool lv_line_get_y_invert(const lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_line_t * line = (lv_line_t *)obj; + + return line->y_inv == 1U; +} + +/********************** + * STATIC FUNCTIONS + **********************/ + +static void lv_line_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj) +{ + LV_UNUSED(class_p); + LV_TRACE_OBJ_CREATE("begin"); + + lv_line_t * line = (lv_line_t *)obj; + + line->point_num = 0; + line->point_array = NULL; + line->y_inv = 0; + + lv_obj_clear_flag(obj, LV_OBJ_FLAG_CLICKABLE); + + LV_TRACE_OBJ_CREATE("finished"); +} + +static void lv_line_event(const lv_obj_class_t * class_p, lv_event_t * e) +{ + LV_UNUSED(class_p); + + lv_res_t res; + + /*Call the ancestor's event handler*/ + res = lv_obj_event_base(MY_CLASS, e); + if(res != LV_RES_OK) return; + + lv_event_code_t code = lv_event_get_code(e); + lv_obj_t * obj = lv_event_get_target(e); + + if(code == LV_EVENT_REFR_EXT_DRAW_SIZE) { + /*The corner of the skew lines is out of the intended area*/ + lv_coord_t line_width = lv_obj_get_style_line_width(obj, LV_PART_MAIN); + lv_coord_t * s = lv_event_get_param(e); + if(*s < line_width) *s = line_width; + } + else if(code == LV_EVENT_GET_SELF_SIZE) { + lv_line_t * line = (lv_line_t *)obj; + + if(line->point_num == 0 || line->point_array == NULL) return; + + lv_point_t * p = lv_event_get_param(e); + lv_coord_t w = 0; + lv_coord_t h = 0; + + uint16_t i; + for(i = 0; i < line->point_num; i++) { + w = LV_MAX(line->point_array[i].x, w); + h = LV_MAX(line->point_array[i].y, h); + } + + lv_coord_t line_width = lv_obj_get_style_line_width(obj, LV_PART_MAIN); + w += line_width; + h += line_width; + p->x = w; + p->y = h; + } + else if(code == LV_EVENT_DRAW_MAIN) { + lv_line_t * line = (lv_line_t *)obj; + lv_draw_ctx_t * draw_ctx = lv_event_get_draw_ctx(e); + + if(line->point_num == 0 || line->point_array == NULL) return; + + lv_area_t area; + lv_obj_get_coords(obj, &area); + lv_coord_t x_ofs = area.x1 - lv_obj_get_scroll_x(obj); + lv_coord_t y_ofs = area.y1 - lv_obj_get_scroll_y(obj); + lv_coord_t h = lv_obj_get_height(obj); + + lv_draw_line_dsc_t line_dsc; + lv_draw_line_dsc_init(&line_dsc); + lv_obj_init_draw_line_dsc(obj, LV_PART_MAIN, &line_dsc); + + /*Read all points and draw the lines*/ + uint16_t i; + for(i = 0; i < line->point_num - 1; i++) { + lv_point_t p1; + lv_point_t p2; + p1.x = line->point_array[i].x + x_ofs; + p2.x = line->point_array[i + 1].x + x_ofs; + + if(line->y_inv == 0) { + p1.y = line->point_array[i].y + y_ofs; + p2.y = line->point_array[i + 1].y + y_ofs; + } + else { + p1.y = h - line->point_array[i].y + y_ofs; + p2.y = h - line->point_array[i + 1].y + y_ofs; + } + lv_draw_line(draw_ctx, &line_dsc, &p1, &p2); + line_dsc.round_start = 0; /*Draw the rounding only on the end points after the first line*/ + } + } +} +#endif diff --git a/lib/lvgl/src/widgets/lv_line.h b/lib/lvgl/src/widgets/lv_line.h new file mode 100644 index 00000000..54fa248b --- /dev/null +++ b/lib/lvgl/src/widgets/lv_line.h @@ -0,0 +1,93 @@ +/** + * @file lv_line.h + * + */ + +#ifndef LV_LINE_H +#define LV_LINE_H + +#ifdef __cplusplus +extern "C" { +#endif + +/********************* + * INCLUDES + *********************/ +#include "../lv_conf_internal.h" + +#if LV_USE_LINE != 0 + +#include "../core/lv_obj.h" + +/********************* + * DEFINES + *********************/ + +/********************** + * TYPEDEFS + **********************/ + +/*Data of line*/ +typedef struct { + lv_obj_t obj; + const lv_point_t * point_array; /**< Pointer to an array with the points of the line*/ + uint16_t point_num; /**< Number of points in 'point_array'*/ + uint8_t y_inv : 1; /**< 1: y == 0 will be on the bottom*/ +} lv_line_t; + +extern const lv_obj_class_t lv_line_class; + +/********************** + * GLOBAL PROTOTYPES + **********************/ + +/** + * Create a line object + * @param parent pointer to an object, it will be the parent of the new line + * @return pointer to the created line + */ +lv_obj_t * lv_line_create(lv_obj_t * parent); + +/*===================== + * Setter functions + *====================*/ + +/** + * Set an array of points. The line object will connect these points. + * @param obj pointer to a line object + * @param points an array of points. Only the address is saved, so the array needs to be alive while the line exists + * @param point_num number of points in 'point_a' + */ +void lv_line_set_points(lv_obj_t * obj, const lv_point_t points[], uint16_t point_num); + +/** + * Enable (or disable) the y coordinate inversion. + * If enabled then y will be subtracted from the height of the object, + * therefore the y = 0 coordinate will be on the bottom. + * @param obj pointer to a line object + * @param en true: enable the y inversion, false:disable the y inversion + */ +void lv_line_set_y_invert(lv_obj_t * obj, bool en); + +/*===================== + * Getter functions + *====================*/ + +/** + * Get the y inversion attribute + * @param obj pointer to a line object + * @return true: y inversion is enabled, false: disabled + */ +bool lv_line_get_y_invert(const lv_obj_t * obj); + +/********************** + * MACROS + **********************/ + +#endif /*LV_USE_LINE*/ + +#ifdef __cplusplus +} /*extern "C"*/ +#endif + +#endif /*LV_LINE_H*/ diff --git a/lib/lvgl/src/widgets/lv_objx_templ.c b/lib/lvgl/src/widgets/lv_objx_templ.c new file mode 100644 index 00000000..91565466 --- /dev/null +++ b/lib/lvgl/src/widgets/lv_objx_templ.c @@ -0,0 +1,140 @@ +/** + * @file lv_templ.c + * + */ + +/** + * TODO Remove these instructions + * Search and replace: templ -> object short name with lower case(e.g. btn, label etc) + * TEMPL -> object short name with upper case (e.g. BTN, LABEL etc.) + * + * You can remove the defined() clause from the #if statement below. This exists because + * LV_USE_TEMPL is not in lv_conf.h or lv_conf_template.h by default. + */ + +/********************* + * INCLUDES + *********************/ +//#include "lv_templ.h" /*TODO uncomment this*/ + +#if defined(LV_USE_TEMPL) && LV_USE_TEMPL != 0 + +/********************* + * DEFINES + *********************/ +#define MY_CLASS &lv_templ_class + +/********************** + * TYPEDEFS + **********************/ + +/********************** + * STATIC PROTOTYPES + **********************/ +static void lv_templ_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj); +static void lv_templ_destructor(const lv_obj_class_t * class_p, lv_obj_t * obj); +static void lv_templ_event(const lv_obj_class_t * class_p, lv_event_t * e); + +/********************** + * STATIC VARIABLES + **********************/ +const lv_obj_class_t lv_templ_class = { + .constructor_cb = lv_templ_constructor, + .destructor_cb = lv_templ_destructor, + .event_cb = lv_templ_event, + .width_def = LV_DPI_DEF, + .height_def = LV_DPI_DEF, + .instance_size = sizeof(lv_templ_t), + .group_def = LV_OBJ_CLASS_GROUP_DEF_INHERIT, + .editable = LV_OBJ_CLASS_EDITABLE_INHERIT, + .base_class = &lv_templ_class +}; + +/********************** + * MACROS + **********************/ + +/********************** + * GLOBAL FUNCTIONS + **********************/ + +lv_obj_t * lv_templ_create(lv_obj_t * parent) +{ + + LV_LOG_INFO("begin"); + lv_obj_t * obj = lv_obj_class_create_obj(MY_CLASS, parent); + lv_obj_class_init_obj(obj); + return obj; +} + +/*====================== + * Add/remove functions + *=====================*/ + +/* + * New object specific "add" or "remove" functions come here + */ + +/*===================== + * Setter functions + *====================*/ + +/* + * New object specific "set" functions come here + */ + +/*===================== + * Getter functions + *====================*/ + +/* + * New object specific "get" functions come here + */ + +/*===================== + * Other functions + *====================*/ + +/* + * New object specific "other" functions come here + */ + +/********************** + * STATIC FUNCTIONS + **********************/ + +static void lv_templ_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj) +{ + LV_UNUSED(class_p); + LV_TRACE_OBJ_CREATE("begin"); + + lv_templ_t * templ = (lv_templ_t *)obj; + /*Initialize the widget's data*/ + + LV_TRACE_OBJ_CREATE("finished"); +} + +static void lv_templ_destructor(const lv_obj_class_t * class_p, lv_obj_t * obj) +{ + lv_templ_t * templ = (lv_templ_t *)obj; + /*Free the widget specific data*/ +} + +static void lv_templ_event(const lv_obj_class_t * class_p, lv_event_t * e) +{ + LV_UNUSED(class_p); + + lv_res_t res; + + /*Call the ancestor's event handler*/ + res = lv_obj_event_base(MY_CLASS, e); + if(res != LV_RES_OK) return; + + /*Add the widget specific event handling here*/ +} + +#else /*Enable this file at the top*/ + +/*This dummy typedef exists purely to silence -Wpedantic.*/ +typedef int keep_pedantic_happy; +#endif diff --git a/lib/lvgl/src/widgets/lv_objx_templ.h b/lib/lvgl/src/widgets/lv_objx_templ.h new file mode 100644 index 00000000..9de5285b --- /dev/null +++ b/lib/lvgl/src/widgets/lv_objx_templ.h @@ -0,0 +1,81 @@ +/** + * @file lv_templ.h + * + */ + +/** + * TODO Remove these instructions + * Search and replace: templ -> object short name with lower case(e.g. btn, label etc) + * TEMPL -> object short name with upper case (e.g. BTN, LABEL etc.) + * + */ + +#ifndef LV_TEMPL_H +#define LV_TEMPL_H + +#ifdef __cplusplus +extern "C" { +#endif + +/********************* + * INCLUDES + *********************/ +#include "../lv_conf_internal.h" + +#if LV_USE_TEMPL != 0 + +#include "../core/lv_obj.h" + +/********************* + * DEFINES + *********************/ + +/********************** + * TYPEDEFS + **********************/ +/*Data of template*/ +typedef struct { + lv_ANCESTOR_t ancestor; /*The ancestor widget, e.g. lv_slider_t slider*/ + /*New data for this type*/ +} lv_templ_t; + +extern const lv_obj_class_t lv_templ_class; + +/********************** + * GLOBAL PROTOTYPES + **********************/ + +/** + * Create a templ object + * @param parent pointer to an object, it will be the parent of the new templ + * @return pointer to the created bar + */ +lv_obj_t * lv_templ_create(lv_obj_t * parent); + +/*====================== + * Add/remove functions + *=====================*/ + +/*===================== + * Setter functions + *====================*/ + +/*===================== + * Getter functions + *====================*/ + +/*===================== + * Other functions + *====================*/ + +/********************** + * MACROS + **********************/ + +#endif /*LV_USE_TEMPL*/ + +#ifdef __cplusplus +} /*extern "C"*/ +#endif + +#endif /*LV_TEMPL_H*/ diff --git a/lib/lvgl/src/widgets/lv_roller.c b/lib/lvgl/src/widgets/lv_roller.c new file mode 100644 index 00000000..fd9b3948 --- /dev/null +++ b/lib/lvgl/src/widgets/lv_roller.c @@ -0,0 +1,786 @@ +/** + * @file lv_roller.c + * + */ + +/********************* + * INCLUDES + *********************/ +#include "lv_roller.h" +#if LV_USE_ROLLER != 0 + +#include "../misc/lv_assert.h" +#include "../draw/lv_draw.h" +#include "../core/lv_group.h" +#include "../core/lv_indev.h" +#include "../core/lv_indev_scroll.h" + +/********************* + * DEFINES + *********************/ +#define MY_CLASS &lv_roller_class +#define MY_CLASS_LABEL &lv_roller_label_class + +/********************** + * TYPEDEFS + **********************/ + +/********************** + * STATIC PROTOTYPES + **********************/ +static void lv_roller_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj); +static void lv_roller_event(const lv_obj_class_t * class_p, lv_event_t * e); +static void lv_roller_label_event(const lv_obj_class_t * class_p, lv_event_t * e); +static void draw_main(lv_event_t * e); +static void draw_label(lv_event_t * e); +static void get_sel_area(lv_obj_t * obj, lv_area_t * sel_area); +static void refr_position(lv_obj_t * obj, lv_anim_enable_t animen); +static lv_res_t release_handler(lv_obj_t * obj); +static void inf_normalize(lv_obj_t * obj_scrl); +static lv_obj_t * get_label(const lv_obj_t * obj); +static lv_coord_t get_selected_label_width(const lv_obj_t * obj); +static void scroll_anim_ready_cb(lv_anim_t * a); +static void set_y_anim(void * obj, int32_t v); + +/********************** + * STATIC VARIABLES + **********************/ +const lv_obj_class_t lv_roller_class = { + .constructor_cb = lv_roller_constructor, + .event_cb = lv_roller_event, + .width_def = LV_SIZE_CONTENT, + .height_def = LV_DPI_DEF, + .instance_size = sizeof(lv_roller_t), + .editable = LV_OBJ_CLASS_EDITABLE_TRUE, + .group_def = LV_OBJ_CLASS_GROUP_DEF_TRUE, + .base_class = &lv_obj_class +}; + +const lv_obj_class_t lv_roller_label_class = { + .event_cb = lv_roller_label_event, + .instance_size = sizeof(lv_label_t), + .base_class = &lv_label_class +}; + +/********************** + * MACROS + **********************/ + +/********************** + * GLOBAL FUNCTIONS + **********************/ + +/** + * Create a roller object + * @param parent pointer to an object, it will be the parent of the new roller + * @return pointer to the created roller + */ +lv_obj_t * lv_roller_create(lv_obj_t * parent) +{ + LV_LOG_INFO("begin"); + lv_obj_t * obj = lv_obj_class_create_obj(MY_CLASS, parent); + lv_obj_class_init_obj(obj); + return obj; +} + +/*===================== + * Setter functions + *====================*/ + +/** + * Set the options on a roller + * @param roller pointer to roller object + * @param options a string with '\n' separated options. E.g. "One\nTwo\nThree" + * @param mode `LV_ROLLER_MODE_NORMAL` or `LV_ROLLER_MODE_INFINITE` + */ +void lv_roller_set_options(lv_obj_t * obj, const char * options, lv_roller_mode_t mode) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + LV_ASSERT_NULL(options); + + lv_roller_t * roller = (lv_roller_t *)obj; + lv_obj_t * label = get_label(obj); + + roller->sel_opt_id = 0; + roller->sel_opt_id_ori = 0; + + /*Count the '\n'-s to determine the number of options*/ + roller->option_cnt = 0; + uint32_t cnt; + for(cnt = 0; options[cnt] != '\0'; cnt++) { + if(options[cnt] == '\n') roller->option_cnt++; + } + roller->option_cnt++; /*Last option has no `\n`*/ + + if(mode == LV_ROLLER_MODE_NORMAL) { + roller->mode = LV_ROLLER_MODE_NORMAL; + lv_label_set_text(label, options); + } + else { + roller->mode = LV_ROLLER_MODE_INFINITE; + + size_t opt_len = strlen(options) + 1; /*+1 to add '\n' after option lists*/ + char * opt_extra = lv_mem_buf_get(opt_len * LV_ROLLER_INF_PAGES); + uint8_t i; + for(i = 0; i < LV_ROLLER_INF_PAGES; i++) { + strcpy(&opt_extra[opt_len * i], options); + opt_extra[opt_len * (i + 1) - 1] = '\n'; + } + opt_extra[opt_len * LV_ROLLER_INF_PAGES - 1] = '\0'; + lv_label_set_text(label, opt_extra); + lv_mem_buf_release(opt_extra); + + roller->sel_opt_id = ((LV_ROLLER_INF_PAGES / 2) + 0) * roller->option_cnt; + + roller->option_cnt = roller->option_cnt * LV_ROLLER_INF_PAGES; + inf_normalize(obj); + } + + roller->sel_opt_id_ori = roller->sel_opt_id; + + /*If the selected text has larger font the label needs some extra draw padding to draw it.*/ + lv_obj_refresh_ext_draw_size(label); + +} + +/** + * Set the selected option + * @param roller pointer to a roller object + * @param sel_opt id of the selected option (0 ... number of option - 1); + * @param anim_en LV_ANIM_ON: set with animation; LV_ANOM_OFF set immediately + */ +void lv_roller_set_selected(lv_obj_t * obj, uint16_t sel_opt, lv_anim_enable_t anim) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + /*Set the value even if it's the same as the current value because + *if moving to the next option with an animation which was just deleted in the PRESS Call the ancestor's event handler + *nothing will continue the animation.*/ + + lv_roller_t * roller = (lv_roller_t *)obj; + + /*In infinite mode interpret the new ID relative to the currently visible "page"*/ + if(roller->mode == LV_ROLLER_MODE_INFINITE) { + uint32_t real_option_cnt = roller->option_cnt / LV_ROLLER_INF_PAGES; + uint16_t current_page = roller->sel_opt_id / real_option_cnt; + /*Set by the user to e.g. 0, 1, 2, 3... + *Upscale the value to the current page*/ + if(sel_opt < real_option_cnt) { + uint16_t act_opt = roller->sel_opt_id - current_page * real_option_cnt; + int32_t sel_opt_signed = sel_opt; + /*Huge jump? Probably from last to first or first to last option.*/ + if(LV_ABS((int16_t)act_opt - sel_opt) > real_option_cnt / 2) { + if(act_opt > sel_opt) sel_opt_signed += real_option_cnt; + else sel_opt_signed -= real_option_cnt; + } + sel_opt = sel_opt_signed + real_option_cnt * current_page; + } + } + + roller->sel_opt_id = sel_opt < roller->option_cnt ? sel_opt : roller->option_cnt - 1; + roller->sel_opt_id_ori = roller->sel_opt_id; + + refr_position(obj, anim); +} + +/** + * Set the height to show the given number of rows (options) + * @param roller pointer to a roller object + * @param row_cnt number of desired visible rows + */ +void lv_roller_set_visible_row_count(lv_obj_t * obj, uint8_t row_cnt) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + const lv_font_t * font = lv_obj_get_style_text_font(obj, LV_PART_MAIN); + lv_coord_t line_space = lv_obj_get_style_text_line_space(obj, LV_PART_MAIN); + lv_coord_t border_width = lv_obj_get_style_border_width(obj, LV_PART_MAIN); + lv_obj_set_height(obj, (lv_font_get_line_height(font) + line_space) * row_cnt + 2 * border_width); +} + +/*===================== + * Getter functions + *====================*/ + +/** + * Get the id of the selected option + * @param roller pointer to a roller object + * @return id of the selected option (0 ... number of option - 1); + */ +uint16_t lv_roller_get_selected(const lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_roller_t * roller = (lv_roller_t *)obj; + if(roller->mode == LV_ROLLER_MODE_INFINITE) { + uint16_t real_id_cnt = roller->option_cnt / LV_ROLLER_INF_PAGES; + return roller->sel_opt_id % real_id_cnt; + } + else { + return roller->sel_opt_id; + } +} + +/** + * Get the current selected option as a string + * @param ddlist pointer to ddlist object + * @param buf pointer to an array to store the string + * @param buf_size size of `buf` in bytes. 0: to ignore it. + */ +void lv_roller_get_selected_str(const lv_obj_t * obj, char * buf, uint32_t buf_size) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_roller_t * roller = (lv_roller_t *)obj; + lv_obj_t * label = get_label(obj); + uint32_t i; + uint16_t line = 0; + const char * opt_txt = lv_label_get_text(label); + size_t txt_len = strlen(opt_txt); + + for(i = 0; i < txt_len && line != roller->sel_opt_id; i++) { + if(opt_txt[i] == '\n') line++; + } + + uint32_t c; + for(c = 0; i < txt_len && opt_txt[i] != '\n'; c++, i++) { + if(buf_size && c >= buf_size - 1) { + LV_LOG_WARN("lv_dropdown_get_selected_str: the buffer was too small"); + break; + } + buf[c] = opt_txt[i]; + } + + buf[c] = '\0'; +} + + +/** + * Get the options of a roller + * @param roller pointer to roller object + * @return the options separated by '\n'-s (E.g. "Option1\nOption2\nOption3") + */ +const char * lv_roller_get_options(const lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + return lv_label_get_text(get_label(obj)); +} + + +/** + * Get the total number of options + * @param roller pointer to a roller object + * @return the total number of options + */ +uint16_t lv_roller_get_option_cnt(const lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_roller_t * roller = (lv_roller_t *)obj; + if(roller->mode == LV_ROLLER_MODE_INFINITE) { + return roller->option_cnt / LV_ROLLER_INF_PAGES; + } + else { + return roller->option_cnt; + } +} + +/********************** + * STATIC FUNCTIONS + **********************/ + + +static void lv_roller_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj) +{ + LV_UNUSED(class_p); + lv_roller_t * roller = (lv_roller_t *)obj; + + roller->mode = LV_ROLLER_MODE_NORMAL; + roller->option_cnt = 0; + roller->sel_opt_id = 0; + roller->sel_opt_id_ori = 0; + + lv_obj_clear_flag(obj, LV_OBJ_FLAG_SCROLLABLE); + lv_obj_clear_flag(obj, LV_OBJ_FLAG_SCROLL_CHAIN_VER); + + LV_LOG_INFO("begin"); + lv_obj_t * label = lv_obj_class_create_obj(&lv_roller_label_class, obj); + lv_obj_class_init_obj(label); + lv_roller_set_options(obj, "Option 1\nOption 2\nOption 3\nOption 4\nOption 5", LV_ROLLER_MODE_NORMAL); + + LV_LOG_TRACE("finshed"); +} + +static void lv_roller_event(const lv_obj_class_t * class_p, lv_event_t * e) +{ + LV_UNUSED(class_p); + + lv_res_t res; + + /*Call the ancestor's event handler*/ + res = lv_obj_event_base(MY_CLASS, e); + if(res != LV_RES_OK) return; + + lv_event_code_t code = lv_event_get_code(e); + lv_obj_t * obj = lv_event_get_target(e); + lv_roller_t * roller = (lv_roller_t *)obj; + + if(code == LV_EVENT_GET_SELF_SIZE) { + lv_point_t * p = lv_event_get_param(e); + p->x = get_selected_label_width(obj); + } + else if(code == LV_EVENT_STYLE_CHANGED) { + lv_obj_t * label = get_label(obj); + /*Be sure the label's style is updated before processing the roller*/ + if(label) lv_event_send(label, LV_EVENT_STYLE_CHANGED, NULL); + lv_obj_refresh_self_size(obj); + refr_position(obj, LV_ANIM_OFF); + } + else if(code == LV_EVENT_SIZE_CHANGED) { + refr_position(obj, LV_ANIM_OFF); + } + else if(code == LV_EVENT_PRESSED) { + roller->moved = 0; + lv_anim_del(get_label(obj), set_y_anim); + } + else if(code == LV_EVENT_PRESSING) { + lv_indev_t * indev = lv_indev_get_act(); + lv_point_t p; + lv_indev_get_vect(indev, &p); + if(p.y) { + lv_obj_t * label = get_label(obj); + lv_obj_set_y(label, lv_obj_get_y(label) + p.y); + roller->moved = 1; + } + } + else if(code == LV_EVENT_RELEASED || code == LV_EVENT_PRESS_LOST) { + release_handler(obj); + } + else if(code == LV_EVENT_FOCUSED) { + lv_group_t * g = lv_obj_get_group(obj); + bool editing = lv_group_get_editing(g); + lv_indev_type_t indev_type = lv_indev_get_type(lv_indev_get_act()); + + /*Encoders need special handling*/ + if(indev_type == LV_INDEV_TYPE_ENCODER) { + /*In navigate mode revert the original value*/ + if(!editing) { + if(roller->sel_opt_id != roller->sel_opt_id_ori) { + roller->sel_opt_id = roller->sel_opt_id_ori; + refr_position(obj, LV_ANIM_ON); + } + } + /*Save the current state when entered to edit mode*/ + else { + roller->sel_opt_id_ori = roller->sel_opt_id; + } + } + else { + roller->sel_opt_id_ori = roller->sel_opt_id; /*Save the current value. Used to revert this state if + ENTER won't be pressed*/ + } + } + else if(code == LV_EVENT_DEFOCUSED) { + /*Revert the original state*/ + if(roller->sel_opt_id != roller->sel_opt_id_ori) { + roller->sel_opt_id = roller->sel_opt_id_ori; + refr_position(obj, LV_ANIM_ON); + } + } + else if(code == LV_EVENT_KEY) { + char c = *((char *)lv_event_get_param(e)); + if(c == LV_KEY_RIGHT || c == LV_KEY_DOWN) { + if(roller->sel_opt_id + 1 < roller->option_cnt) { + uint16_t ori_id = roller->sel_opt_id_ori; /*lv_roller_set_selected will overwrite this*/ + lv_roller_set_selected(obj, roller->sel_opt_id + 1, LV_ANIM_ON); + roller->sel_opt_id_ori = ori_id; + } + } + else if(c == LV_KEY_LEFT || c == LV_KEY_UP) { + if(roller->sel_opt_id > 0) { + uint16_t ori_id = roller->sel_opt_id_ori; /*lv_roller_set_selected will overwrite this*/ + + lv_roller_set_selected(obj, roller->sel_opt_id - 1, LV_ANIM_ON); + roller->sel_opt_id_ori = ori_id; + } + } + } + else if(code == LV_EVENT_REFR_EXT_DRAW_SIZE) { + lv_obj_t * label = get_label(obj); + lv_obj_refresh_ext_draw_size(label); + } + else if(code == LV_EVENT_DRAW_MAIN || code == LV_EVENT_DRAW_POST) { + draw_main(e); + } +} + +static void lv_roller_label_event(const lv_obj_class_t * class_p, lv_event_t * e) +{ + LV_UNUSED(class_p); + + lv_res_t res; + + lv_event_code_t code = lv_event_get_code(e); + /*LV_EVENT_DRAW_MAIN will be called in the draw function*/ + if(code != LV_EVENT_DRAW_MAIN) { + /* Call the ancestor's event handler */ + res = lv_obj_event_base(MY_CLASS_LABEL, e); + if(res != LV_RES_OK) return; + } + + lv_obj_t * label = lv_event_get_target(e); + if(code == LV_EVENT_REFR_EXT_DRAW_SIZE) { + /*If the selected text has a larger font it needs some extra space to draw it*/ + lv_coord_t * s = lv_event_get_param(e); + lv_obj_t * obj = lv_obj_get_parent(label); + lv_coord_t sel_w = get_selected_label_width(obj); + lv_coord_t label_w = lv_obj_get_width(label); + *s = LV_MAX(*s, sel_w - label_w); + } + else if(code == LV_EVENT_SIZE_CHANGED) { + refr_position(lv_obj_get_parent(label), LV_ANIM_OFF); + } + else if(code == LV_EVENT_DRAW_MAIN) { + draw_label(e); + } +} + + +static void draw_main(lv_event_t * e) +{ + lv_event_code_t code = lv_event_get_code(e); + lv_obj_t * obj = lv_event_get_target(e); + if(code == LV_EVENT_DRAW_MAIN) { + /*Draw the selected rectangle*/ + lv_draw_ctx_t * draw_ctx = lv_event_get_draw_ctx(e); + lv_area_t sel_area; + get_sel_area(obj, &sel_area); + lv_draw_rect_dsc_t sel_dsc; + lv_draw_rect_dsc_init(&sel_dsc); + lv_obj_init_draw_rect_dsc(obj, LV_PART_SELECTED, &sel_dsc); + lv_draw_rect(draw_ctx, &sel_dsc, &sel_area); + } + /*Post draw when the children are drawn*/ + else if(code == LV_EVENT_DRAW_POST) { + lv_draw_ctx_t * draw_ctx = lv_event_get_draw_ctx(e); + + lv_draw_label_dsc_t label_dsc; + lv_draw_label_dsc_init(&label_dsc); + lv_obj_init_draw_label_dsc(obj, LV_PART_SELECTED, &label_dsc); + + /*Redraw the text on the selected area*/ + lv_area_t sel_area; + get_sel_area(obj, &sel_area); + lv_area_t mask_sel; + bool area_ok; + area_ok = _lv_area_intersect(&mask_sel, draw_ctx->clip_area, &sel_area); + if(area_ok) { + lv_obj_t * label = get_label(obj); + + /*Get the size of the "selected text"*/ + lv_point_t res_p; + lv_txt_get_size(&res_p, lv_label_get_text(label), label_dsc.font, label_dsc.letter_space, label_dsc.line_space, + lv_obj_get_width(obj), LV_TEXT_FLAG_EXPAND); + + /*Move the selected label proportionally with the background label*/ + lv_coord_t roller_h = lv_obj_get_height(obj); + int32_t label_y_prop = label->coords.y1 - (roller_h / 2 + + obj->coords.y1); /*label offset from the middle line of the roller*/ + label_y_prop = (label_y_prop * 16384) / lv_obj_get_height( + label); /*Proportional position from the middle line (upscaled by << 14)*/ + + /*Apply a correction with different line heights*/ + const lv_font_t * normal_label_font = lv_obj_get_style_text_font(obj, LV_PART_MAIN); + lv_coord_t corr = (label_dsc.font->line_height - normal_label_font->line_height) / 2; + + /*Apply the proportional position to the selected text*/ + res_p.y -= corr; + int32_t label_sel_y = roller_h / 2 + obj->coords.y1; + label_sel_y += (label_y_prop * res_p.y) >> 14; + label_sel_y -= corr; + + lv_coord_t bwidth = lv_obj_get_style_border_width(obj, LV_PART_MAIN); + lv_coord_t pleft = lv_obj_get_style_pad_left(obj, LV_PART_MAIN); + lv_coord_t pright = lv_obj_get_style_pad_right(obj, LV_PART_MAIN); + + /*Draw the selected text*/ + lv_area_t label_sel_area; + label_sel_area.x1 = obj->coords.x1 + pleft + bwidth; + label_sel_area.y1 = label_sel_y; + label_sel_area.x2 = obj->coords.x2 - pright - bwidth; + label_sel_area.y2 = label_sel_area.y1 + res_p.y; + + label_dsc.flag |= LV_TEXT_FLAG_EXPAND; + const lv_area_t * clip_area_ori = draw_ctx->clip_area; + draw_ctx->clip_area = &mask_sel; + lv_draw_label(draw_ctx, &label_dsc, &label_sel_area, lv_label_get_text(label), NULL); + draw_ctx->clip_area = clip_area_ori; + } + } +} + +static void draw_label(lv_event_t * e) +{ + /* Split the drawing of the label into an upper (above the selected area) + * and a lower (below the selected area)*/ + lv_obj_t * label_obj = lv_event_get_target(e); + lv_obj_t * roller = lv_obj_get_parent(label_obj); + lv_draw_label_dsc_t label_draw_dsc; + lv_draw_label_dsc_init(&label_draw_dsc); + lv_obj_init_draw_label_dsc(roller, LV_PART_MAIN, &label_draw_dsc); + lv_draw_ctx_t * draw_ctx = lv_event_get_draw_ctx(e); + + /*If the roller has shadow or outline it has some ext. draw size + *therefore the label can overflow the roller's boundaries. + *To solve this limit the clip area to the "plain" roller.*/ + const lv_area_t * clip_area_ori = draw_ctx->clip_area; + lv_area_t roller_clip_area; + if(!_lv_area_intersect(&roller_clip_area, draw_ctx->clip_area, &roller->coords)) return; + draw_ctx->clip_area = &roller_clip_area; + + lv_area_t sel_area; + get_sel_area(roller, &sel_area); + + lv_area_t clip2; + clip2.x1 = label_obj->coords.x1; + clip2.y1 = label_obj->coords.y1; + clip2.x2 = label_obj->coords.x2; + clip2.y2 = sel_area.y1; + if(_lv_area_intersect(&clip2, draw_ctx->clip_area, &clip2)) { + const lv_area_t * clip_area_ori2 = draw_ctx->clip_area; + draw_ctx->clip_area = &clip2; + lv_draw_label(draw_ctx, &label_draw_dsc, &label_obj->coords, lv_label_get_text(label_obj), NULL); + draw_ctx->clip_area = clip_area_ori2; + } + + clip2.x1 = label_obj->coords.x1; + clip2.y1 = sel_area.y2; + clip2.x2 = label_obj->coords.x2; + clip2.y2 = label_obj->coords.y2; + if(_lv_area_intersect(&clip2, draw_ctx->clip_area, &clip2)) { + const lv_area_t * clip_area_ori2 = draw_ctx->clip_area; + draw_ctx->clip_area = &clip2; + lv_draw_label(draw_ctx, &label_draw_dsc, &label_obj->coords, lv_label_get_text(label_obj), NULL); + draw_ctx->clip_area = clip_area_ori2; + } + + draw_ctx->clip_area = clip_area_ori; +} + +static void get_sel_area(lv_obj_t * obj, lv_area_t * sel_area) +{ + + const lv_font_t * font_main = lv_obj_get_style_text_font(obj, LV_PART_MAIN); + const lv_font_t * font_sel = lv_obj_get_style_text_font(obj, LV_PART_SELECTED); + lv_coord_t font_main_h = lv_font_get_line_height(font_main); + lv_coord_t font_sel_h = lv_font_get_line_height(font_sel); + lv_coord_t line_space = lv_obj_get_style_text_line_space(obj, LV_PART_MAIN); + lv_coord_t d = (font_sel_h + font_main_h) / 2 + line_space; + sel_area->y1 = obj->coords.y1 + lv_obj_get_height(obj) / 2 - d / 2; + sel_area->y2 = sel_area->y1 + d; + lv_area_t roller_coords; + lv_obj_get_coords(obj, &roller_coords); + + sel_area->x1 = roller_coords.x1; + sel_area->x2 = roller_coords.x2; + +} + +/** + * Refresh the position of the roller. It uses the id stored in: roller->ddlist.selected_option_id + * @param roller pointer to a roller object + * @param anim_en LV_ANIM_ON: refresh with animation; LV_ANOM_OFF: without animation + */ +static void refr_position(lv_obj_t * obj, lv_anim_enable_t anim_en) +{ + lv_obj_t * label = get_label(obj); + if(label == NULL) return; + + lv_text_align_t align = lv_obj_calculate_style_text_align(label, LV_PART_MAIN, lv_label_get_text(label)); + + switch(align) { + case LV_TEXT_ALIGN_CENTER: + lv_obj_set_x(label, (lv_obj_get_content_width(obj) - lv_obj_get_width(label)) / 2); + break; + case LV_TEXT_ALIGN_RIGHT: + lv_obj_set_x(label, lv_obj_get_content_width(obj) - lv_obj_get_width(label)); + break; + case LV_TEXT_ALIGN_LEFT: + lv_obj_set_x(label, 0); + break; + } + + lv_roller_t * roller = (lv_roller_t *)obj; + const lv_font_t * font = lv_obj_get_style_text_font(obj, LV_PART_MAIN); + lv_coord_t line_space = lv_obj_get_style_text_line_space(obj, LV_PART_MAIN); + lv_coord_t font_h = lv_font_get_line_height(font); + lv_coord_t h = lv_obj_get_content_height(obj); + uint16_t anim_time = lv_obj_get_style_anim_time(obj, LV_PART_MAIN); + + /*Normally the animation's `end_cb` sets correct position of the roller if infinite. + *But without animations do it manually*/ + if(anim_en == LV_ANIM_OFF || anim_time == 0) { + inf_normalize(obj); + } + + int32_t id = roller->sel_opt_id; + lv_coord_t sel_y1 = id * (font_h + line_space); + lv_coord_t mid_y1 = h / 2 - font_h / 2; + + lv_coord_t new_y = mid_y1 - sel_y1; + + if(anim_en == LV_ANIM_OFF || anim_time == 0) { + lv_anim_del(label, set_y_anim); + lv_obj_set_y(label, new_y); + } + else { + lv_anim_t a; + lv_anim_init(&a); + lv_anim_set_var(&a, label); + lv_anim_set_exec_cb(&a, set_y_anim); + lv_anim_set_values(&a, lv_obj_get_y(label), new_y); + lv_anim_set_time(&a, anim_time); + lv_anim_set_ready_cb(&a, scroll_anim_ready_cb); + lv_anim_set_path_cb(&a, lv_anim_path_ease_out); + lv_anim_start(&a); + } +} + +static lv_res_t release_handler(lv_obj_t * obj) +{ + lv_obj_t * label = get_label(obj); + if(label == NULL) return LV_RES_OK; + + lv_indev_t * indev = lv_indev_get_act(); + lv_roller_t * roller = (lv_roller_t *)obj; + + /*Leave edit mode once a new option is selected*/ + lv_indev_type_t indev_type = lv_indev_get_type(indev); + if(indev_type == LV_INDEV_TYPE_ENCODER || indev_type == LV_INDEV_TYPE_KEYPAD) { + roller->sel_opt_id_ori = roller->sel_opt_id; + + if(indev_type == LV_INDEV_TYPE_ENCODER) { + lv_group_t * g = lv_obj_get_group(obj); + if(lv_group_get_editing(g)) { + lv_group_set_editing(g, false); + } + } + } + + if(lv_indev_get_type(indev) == LV_INDEV_TYPE_POINTER || lv_indev_get_type(indev) == LV_INDEV_TYPE_BUTTON) { + /*Search the clicked option (For KEYPAD and ENCODER the new value should be already set)*/ + int16_t new_opt = -1; + if(roller->moved == 0) { + new_opt = 0; + lv_point_t p; + lv_indev_get_point(indev, &p); + p.y -= label->coords.y1; + p.x -= label->coords.x1; + uint32_t letter_i; + letter_i = lv_label_get_letter_on(label, &p); + + const char * txt = lv_label_get_text(label); + uint32_t i = 0; + uint32_t i_prev = 0; + + uint32_t letter_cnt = 0; + for(letter_cnt = 0; letter_cnt < letter_i; letter_cnt++) { + uint32_t letter = _lv_txt_encoded_next(txt, &i); + /*Count he lines to reach the clicked letter. But ignore the last '\n' because it + * still belongs to the clicked line*/ + if(letter == '\n' && i_prev != letter_i) new_opt++; + i_prev = i; + } + } + else { + /*If dragged then align the list to have an element in the middle*/ + const lv_font_t * font = lv_obj_get_style_text_font(obj, LV_PART_MAIN); + lv_coord_t line_space = lv_obj_get_style_text_line_space(obj, LV_PART_MAIN); + lv_coord_t font_h = lv_font_get_line_height(font); + + lv_coord_t label_unit = font_h + line_space; + lv_coord_t mid = obj->coords.y1 + (obj->coords.y2 - obj->coords.y1) / 2; + lv_coord_t label_y1 = label->coords.y1 + lv_indev_scroll_throw_predict(indev, LV_DIR_VER); + int32_t id = (mid - label_y1) / label_unit; + + if(id < 0) id = 0; + if(id >= roller->option_cnt) id = roller->option_cnt - 1; + + new_opt = id; + } + + if(new_opt >= 0) { + lv_roller_set_selected(obj, new_opt, LV_ANIM_ON); + } + } + + uint32_t id = roller->sel_opt_id; /*Just to use uint32_t in event data*/ + lv_res_t res = lv_event_send(obj, LV_EVENT_VALUE_CHANGED, &id); + return res; +} + +/** + * Set the middle page for the roller if infinite is enabled + * @param roller pointer to a roller object + */ +static void inf_normalize(lv_obj_t * obj) +{ + lv_roller_t * roller = (lv_roller_t *)obj; + + if(roller->mode == LV_ROLLER_MODE_INFINITE) { + uint16_t real_id_cnt = roller->option_cnt / LV_ROLLER_INF_PAGES; + roller->sel_opt_id = roller->sel_opt_id % real_id_cnt; + roller->sel_opt_id += (LV_ROLLER_INF_PAGES / 2) * real_id_cnt; /*Select the middle page*/ + + roller->sel_opt_id_ori = roller->sel_opt_id % real_id_cnt; + roller->sel_opt_id_ori += (LV_ROLLER_INF_PAGES / 2) * real_id_cnt; /*Select the middle page*/ + + /*Move to the new id*/ + const lv_font_t * font = lv_obj_get_style_text_font(obj, LV_PART_MAIN); + lv_coord_t line_space = lv_obj_get_style_text_line_space(obj, LV_PART_MAIN); + lv_coord_t font_h = lv_font_get_line_height(font); + lv_coord_t h = lv_obj_get_content_height(obj); + + lv_obj_t * label = get_label(obj); + + + lv_coord_t sel_y1 = roller->sel_opt_id * (font_h + line_space); + lv_coord_t mid_y1 = h / 2 - font_h / 2; + lv_coord_t new_y = mid_y1 - sel_y1; + lv_obj_set_y(label, new_y); + } +} + +static lv_obj_t * get_label(const lv_obj_t * obj) +{ + return lv_obj_get_child(obj, 0); +} + + +static lv_coord_t get_selected_label_width(const lv_obj_t * obj) +{ + lv_obj_t * label = get_label(obj); + if(label == NULL) return 0; + + const lv_font_t * font = lv_obj_get_style_text_font(obj, LV_PART_SELECTED); + lv_coord_t letter_space = lv_obj_get_style_text_letter_space(obj, LV_PART_SELECTED); + const char * txt = lv_label_get_text(label); + lv_point_t size; + lv_txt_get_size(&size, txt, font, letter_space, 0, LV_COORD_MAX, LV_TEXT_FLAG_NONE); + return size.x; +} + +static void scroll_anim_ready_cb(lv_anim_t * a) +{ + lv_obj_t * obj = lv_obj_get_parent(a->var); /*The label is animated*/ + inf_normalize(obj); +} + + +static void set_y_anim(void * obj, int32_t v) +{ + lv_obj_set_y(obj, v); +} + +#endif diff --git a/lib/lvgl/src/widgets/lv_roller.h b/lib/lvgl/src/widgets/lv_roller.h new file mode 100644 index 00000000..14411dea --- /dev/null +++ b/lib/lvgl/src/widgets/lv_roller.h @@ -0,0 +1,138 @@ +/** + * @file lv_roller.h + * + */ + +#ifndef LV_ROLLER_H +#define LV_ROLLER_H + +#ifdef __cplusplus +extern "C" { +#endif + +/********************* + * INCLUDES + *********************/ +#include "../lv_conf_internal.h" + +#if LV_USE_ROLLER != 0 + +/*Testing of dependencies*/ +#if LV_USE_LABEL == 0 +#error "lv_roller: lv_label is required. Enable it in lv_conf.h (LV_USE_ROLLER 1)" +#endif + +#include "../core/lv_obj.h" +#include "lv_label.h" + +/********************* + * DEFINES + *********************/ + +/********************** + * TYPEDEFS + **********************/ + +/** Roller mode.*/ +enum { + LV_ROLLER_MODE_NORMAL, /**< Normal mode (roller ends at the end of the options).*/ + LV_ROLLER_MODE_INFINITE, /**< Infinite mode (roller can be scrolled forever).*/ +}; + +typedef uint8_t lv_roller_mode_t; + +typedef struct { + lv_obj_t obj; + uint16_t option_cnt; /**< Number of options*/ + uint16_t sel_opt_id; /**< Index of the current option*/ + uint16_t sel_opt_id_ori; /**< Store the original index on focus*/ + lv_roller_mode_t mode : 1; + uint32_t moved : 1; +} lv_roller_t; + +extern const lv_obj_class_t lv_roller_class; + + +/********************** + * GLOBAL PROTOTYPES + **********************/ + +/** + * Create a roller object + * @param parent pointer to an object, it will be the parent of the new roller. + * @return pointer to the created roller + */ +lv_obj_t * lv_roller_create(lv_obj_t * parent); + +/*===================== + * Setter functions + *====================*/ + +/** + * Set the options on a roller + * @param obj pointer to roller object + * @param options a string with '\n' separated options. E.g. "One\nTwo\nThree" + * @param mode `LV_ROLLER_MODE_NORMAL` or `LV_ROLLER_MODE_INFINITE` + */ +void lv_roller_set_options(lv_obj_t * obj, const char * options, lv_roller_mode_t mode); + +/** + * Set the selected option + * @param obj pointer to a roller object + * @param sel_opt index of the selected option (0 ... number of option - 1); + * @param anim_en LV_ANIM_ON: set with animation; LV_ANOM_OFF set immediately + */ +void lv_roller_set_selected(lv_obj_t * obj, uint16_t sel_opt, lv_anim_enable_t anim); + +/** + * Set the height to show the given number of rows (options) + * @param obj pointer to a roller object + * @param row_cnt number of desired visible rows + */ +void lv_roller_set_visible_row_count(lv_obj_t * obj, uint8_t row_cnt); + +/*===================== + * Getter functions + *====================*/ + +/** + * Get the index of the selected option + * @param obj pointer to a roller object + * @return index of the selected option (0 ... number of option - 1); + */ +uint16_t lv_roller_get_selected(const lv_obj_t * obj); + +/** + * Get the current selected option as a string. + * @param obj pointer to ddlist object + * @param buf pointer to an array to store the string + * @param buf_size size of `buf` in bytes. 0: to ignore it. + */ +void lv_roller_get_selected_str(const lv_obj_t * obj, char * buf, uint32_t buf_size); + + +/** + * Get the options of a roller + * @param obj pointer to roller object + * @return the options separated by '\n'-s (E.g. "Option1\nOption2\nOption3") + */ +const char * lv_roller_get_options(const lv_obj_t * obj); + +/** + * Get the total number of options + * @param obj pointer to a roller object + * @return the total number of options + */ +uint16_t lv_roller_get_option_cnt(const lv_obj_t * obj); + +/********************** + * MACROS + **********************/ + +#endif /*LV_USE_ROLLER*/ + +#ifdef __cplusplus +} /*extern "C"*/ +#endif + +#endif /*LV_ROLLER_H*/ diff --git a/lib/lvgl/src/widgets/lv_slider.c b/lib/lvgl/src/widgets/lv_slider.c new file mode 100644 index 00000000..3f85efc2 --- /dev/null +++ b/lib/lvgl/src/widgets/lv_slider.c @@ -0,0 +1,443 @@ +/** + * @file lv_slider.c + * + */ + +/********************* + * INCLUDES + *********************/ +#include "lv_slider.h" +#if LV_USE_SLIDER != 0 + +#include "../misc/lv_assert.h" +#include "../core/lv_group.h" +#include "../core/lv_indev.h" +#include "../draw/lv_draw.h" +#include "../misc/lv_math.h" +#include "../core/lv_disp.h" +#include "lv_img.h" + +/********************* + * DEFINES + *********************/ +#define MY_CLASS &lv_slider_class + +#define LV_SLIDER_KNOB_COORD(is_rtl, area) (is_rtl ? area.x1 : area.x2) + +/********************** + * TYPEDEFS + **********************/ + +/********************** + * STATIC PROTOTYPES + **********************/ +static void lv_slider_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj); +static void lv_slider_event(const lv_obj_class_t * class_p, lv_event_t * e); +static void position_knob(lv_obj_t * obj, lv_area_t * knob_area, const lv_coord_t knob_size, const bool hor); +static void draw_knob(lv_event_t * e); +static bool is_slider_horizontal(lv_obj_t * obj); + +/********************** + * STATIC VARIABLES + **********************/ +const lv_obj_class_t lv_slider_class = { + .constructor_cb = lv_slider_constructor, + .event_cb = lv_slider_event, + .editable = LV_OBJ_CLASS_EDITABLE_TRUE, + .group_def = LV_OBJ_CLASS_GROUP_DEF_TRUE, + .instance_size = sizeof(lv_slider_t), + .base_class = &lv_bar_class +}; + +/********************** + * MACROS + **********************/ + +/********************** + * GLOBAL FUNCTIONS + **********************/ + +lv_obj_t * lv_slider_create(lv_obj_t * parent) +{ + LV_LOG_INFO("begin"); + lv_obj_t * obj = lv_obj_class_create_obj(MY_CLASS, parent); + lv_obj_class_init_obj(obj); + return obj; +} + +bool lv_slider_is_dragged(const lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + lv_slider_t * slider = (lv_slider_t *)obj; + + return slider->dragging ? true : false; +} + +/********************** + * STATIC FUNCTIONS + **********************/ + +static void lv_slider_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj) +{ + LV_UNUSED(class_p); + lv_slider_t * slider = (lv_slider_t *)obj; + + /*Initialize the allocated 'slider'*/ + slider->value_to_set = NULL; + slider->dragging = 0U; + slider->left_knob_focus = 0U; + + lv_obj_clear_flag(obj, LV_OBJ_FLAG_SCROLL_CHAIN); + lv_obj_clear_flag(obj, LV_OBJ_FLAG_SCROLLABLE); + lv_obj_set_ext_click_area(obj, LV_DPX(8)); +} + +static void lv_slider_event(const lv_obj_class_t * class_p, lv_event_t * e) +{ + LV_UNUSED(class_p); + + lv_res_t res; + + /*Call the ancestor's event handler*/ + res = lv_obj_event_base(MY_CLASS, e); + if(res != LV_RES_OK) return; + + lv_event_code_t code = lv_event_get_code(e); + lv_obj_t * obj = lv_event_get_target(e); + lv_slider_t * slider = (lv_slider_t *)obj; + lv_slider_mode_t type = lv_slider_get_mode(obj); + + /*Advanced hit testing: react only on dragging the knob(s)*/ + if(code == LV_EVENT_HIT_TEST) { + lv_hit_test_info_t * info = lv_event_get_param(e); + lv_coord_t ext_click_area = obj->spec_attr ? obj->spec_attr->ext_click_pad : 0; + + /*Ordinary slider: was the knob area hit?*/ + lv_area_t a; + lv_area_copy(&a, &slider->right_knob_area); + lv_area_increase(&a, ext_click_area, ext_click_area); + info->res = _lv_area_is_point_on(&a, info->point, 0); + + /*There's still a chance that there is a hit if there is another knob*/ + if((info->res == false) && (type == LV_SLIDER_MODE_RANGE)) { + lv_area_copy(&a, &slider->left_knob_area); + lv_area_increase(&a, ext_click_area, ext_click_area); + info->res = _lv_area_is_point_on(&a, info->point, 0); + } + } + else if(code == LV_EVENT_PRESSED) { + lv_obj_invalidate(obj); + + lv_point_t p; + slider->dragging = true; + if(type == LV_SLIDER_MODE_NORMAL || type == LV_SLIDER_MODE_SYMMETRICAL) { + slider->value_to_set = &slider->bar.cur_value; + } + else if(type == LV_SLIDER_MODE_RANGE) { + lv_indev_get_point(lv_indev_get_act(), &p); + bool hor = lv_obj_get_width(obj) >= lv_obj_get_height(obj); + lv_base_dir_t base_dir = lv_obj_get_style_base_dir(obj, LV_PART_MAIN); + + lv_coord_t dist_left, dist_right; + if(hor) { + if((base_dir != LV_BASE_DIR_RTL && p.x > slider->right_knob_area.x2) || (base_dir == LV_BASE_DIR_RTL && + p.x < slider->right_knob_area.x1)) { + slider->value_to_set = &slider->bar.cur_value; + } + else if((base_dir != LV_BASE_DIR_RTL && p.x < slider->left_knob_area.x1) || (base_dir == LV_BASE_DIR_RTL && + p.x > slider->left_knob_area.x2)) { + slider->value_to_set = &slider->bar.start_value; + } + else { + /*Calculate the distance from each knob*/ + dist_left = LV_ABS((slider->left_knob_area.x1 + (slider->left_knob_area.x2 - slider->left_knob_area.x1) / 2) - p.x); + dist_right = LV_ABS((slider->right_knob_area.x1 + (slider->right_knob_area.x2 - slider->right_knob_area.x1) / 2) - p.x); + + /*Use whichever one is closer*/ + if(dist_right < dist_left) { + slider->value_to_set = &slider->bar.cur_value; + slider->left_knob_focus = 0; + } + else { + slider->value_to_set = &slider->bar.start_value; + slider->left_knob_focus = 1; + } + } + } + else { + if(p.y < slider->right_knob_area.y1) { + slider->value_to_set = &slider->bar.cur_value; + } + else if(p.y > slider->left_knob_area.y2) { + slider->value_to_set = &slider->bar.start_value; + } + else { + /*Calculate the distance from each knob*/ + dist_left = LV_ABS((slider->left_knob_area.y1 + (slider->left_knob_area.y2 - slider->left_knob_area.y1) / 2) - p.y); + dist_right = LV_ABS((slider->right_knob_area.y1 + (slider->right_knob_area.y2 - slider->right_knob_area.y1) / 2) - p.y); + + /*Use whichever one is closer*/ + if(dist_right < dist_left) { + slider->value_to_set = &slider->bar.cur_value; + slider->left_knob_focus = 0; + } + else { + slider->value_to_set = &slider->bar.start_value; + slider->left_knob_focus = 1; + } + } + } + } + } + else if(code == LV_EVENT_PRESSING && slider->value_to_set != NULL) { + lv_indev_t * indev = lv_indev_get_act(); + if(lv_indev_get_type(indev) != LV_INDEV_TYPE_POINTER) return; + + lv_point_t p; + lv_indev_get_point(indev, &p); + int32_t new_value = 0; + + const int32_t range = slider->bar.max_value - slider->bar.min_value; + if(is_slider_horizontal(obj)) { + const lv_coord_t bg_left = lv_obj_get_style_pad_left(obj, LV_PART_MAIN); + const lv_coord_t bg_right = lv_obj_get_style_pad_right(obj, LV_PART_MAIN); + const lv_coord_t w = lv_obj_get_width(obj); + const lv_coord_t indic_w = w - bg_left - bg_right; + + if(lv_obj_get_style_base_dir(obj, LV_PART_MAIN) == LV_BASE_DIR_RTL) { + /*Make the point relative to the indicator*/ + new_value = (obj->coords.x2 - bg_right) - p.x; + } + else { + /*Make the point relative to the indicator*/ + new_value = p.x - (obj->coords.x1 + bg_left); + } + new_value = (new_value * range + indic_w / 2) / indic_w; + new_value += slider->bar.min_value; + } + else { + const lv_coord_t bg_top = lv_obj_get_style_pad_top(obj, LV_PART_MAIN); + const lv_coord_t bg_bottom = lv_obj_get_style_pad_bottom(obj, LV_PART_MAIN); + const lv_coord_t h = lv_obj_get_height(obj); + const lv_coord_t indic_h = h - bg_bottom - bg_top; + + /*Make the point relative to the indicator*/ + new_value = p.y - (obj->coords.y2 + bg_bottom); + new_value = (-new_value * range + indic_h / 2) / indic_h; + new_value += slider->bar.min_value; + } + + int32_t real_max_value = slider->bar.max_value; + int32_t real_min_value = slider->bar.min_value; + /*Figure out the min. and max. for this mode*/ + if(slider->value_to_set == &slider->bar.start_value) { + real_max_value = slider->bar.cur_value; + } + else { + real_min_value = slider->bar.start_value; + } + + new_value = LV_CLAMP(real_min_value, new_value, real_max_value); + if(*slider->value_to_set != new_value) { + *slider->value_to_set = new_value; + lv_obj_invalidate(obj); + res = lv_event_send(obj, LV_EVENT_VALUE_CHANGED, NULL); + if(res != LV_RES_OK) return; + } + + } + else if(code == LV_EVENT_RELEASED || code == LV_EVENT_PRESS_LOST) { + slider->dragging = false; + slider->value_to_set = NULL; + + lv_obj_invalidate(obj); + + /*Leave edit mode if released. (No need to wait for LONG_PRESS)*/ + lv_group_t * g = lv_obj_get_group(obj); + bool editing = lv_group_get_editing(g); + lv_indev_type_t indev_type = lv_indev_get_type(lv_indev_get_act()); + if(indev_type == LV_INDEV_TYPE_ENCODER) { + if(editing) { + if(lv_slider_get_mode(obj) == LV_SLIDER_MODE_RANGE) { + if(slider->left_knob_focus == 0) slider->left_knob_focus = 1; + else { + slider->left_knob_focus = 0; + lv_group_set_editing(g, false); + } + } + else { + lv_group_set_editing(g, false); + } + } + } + + } + else if(code == LV_EVENT_FOCUSED) { + lv_indev_type_t indev_type = lv_indev_get_type(lv_indev_get_act()); + if(indev_type == LV_INDEV_TYPE_ENCODER || indev_type == LV_INDEV_TYPE_KEYPAD) { + slider->left_knob_focus = 0; + } + } + else if(code == LV_EVENT_SIZE_CHANGED) { + lv_obj_refresh_ext_draw_size(obj); + } + else if(code == LV_EVENT_REFR_EXT_DRAW_SIZE) { + lv_coord_t knob_left = lv_obj_get_style_pad_left(obj, LV_PART_KNOB); + lv_coord_t knob_right = lv_obj_get_style_pad_right(obj, LV_PART_KNOB); + lv_coord_t knob_top = lv_obj_get_style_pad_top(obj, LV_PART_KNOB); + lv_coord_t knob_bottom = lv_obj_get_style_pad_bottom(obj, LV_PART_KNOB); + + /*The smaller size is the knob diameter*/ + lv_coord_t zoom = lv_obj_get_style_transform_zoom(obj, LV_PART_KNOB); + lv_coord_t trans_w = lv_obj_get_style_transform_width(obj, LV_PART_KNOB); + lv_coord_t trans_h = lv_obj_get_style_transform_height(obj, LV_PART_KNOB); + lv_coord_t knob_size = LV_MIN(lv_obj_get_width(obj) + 2 * trans_w, lv_obj_get_height(obj) + 2 * trans_h) >> 1; + knob_size = (knob_size * zoom) >> 8; + knob_size += LV_MAX(LV_MAX(knob_left, knob_right), LV_MAX(knob_bottom, knob_top)); + knob_size += 2; /*For rounding error*/ + knob_size += lv_obj_calculate_ext_draw_size(obj, LV_PART_KNOB); + + /*Indic. size is handled by bar*/ + lv_coord_t * s = lv_event_get_param(e); + *s = LV_MAX(*s, knob_size); + + } + else if(code == LV_EVENT_KEY) { + char c = *((char *)lv_event_get_param(e)); + + if(c == LV_KEY_RIGHT || c == LV_KEY_UP) { + if(!slider->left_knob_focus) lv_slider_set_value(obj, lv_slider_get_value(obj) + 1, LV_ANIM_ON); + else lv_slider_set_left_value(obj, lv_slider_get_left_value(obj) + 1, LV_ANIM_ON); + } + else if(c == LV_KEY_LEFT || c == LV_KEY_DOWN) { + if(!slider->left_knob_focus) lv_slider_set_value(obj, lv_slider_get_value(obj) - 1, LV_ANIM_ON); + else lv_slider_set_left_value(obj, lv_slider_get_left_value(obj) - 1, LV_ANIM_ON); + } + else { + return; + } + + res = lv_event_send(obj, LV_EVENT_VALUE_CHANGED, NULL); + if(res != LV_RES_OK) return; + } + else if(code == LV_EVENT_DRAW_MAIN) { + draw_knob(e); + } +} + +static void draw_knob(lv_event_t * e) +{ + lv_obj_t * obj = lv_event_get_target(e); + lv_slider_t * slider = (lv_slider_t *)obj; + lv_draw_ctx_t * draw_ctx = lv_event_get_draw_ctx(e); + + const bool is_rtl = LV_BASE_DIR_RTL == lv_obj_get_style_base_dir(obj, LV_PART_MAIN); + const bool is_horizontal = is_slider_horizontal(obj); + + lv_area_t knob_area; + lv_coord_t knob_size; + bool is_symmetrical = false; + if(slider->bar.mode == LV_BAR_MODE_SYMMETRICAL && slider->bar.min_value < 0 && + slider->bar.max_value > 0) is_symmetrical = true; + + if(is_horizontal) { + knob_size = lv_obj_get_height(obj); + if(is_symmetrical && slider->bar.cur_value < 0) knob_area.x1 = slider->bar.indic_area.x1; + else knob_area.x1 = LV_SLIDER_KNOB_COORD(is_rtl, slider->bar.indic_area); + } + else { + knob_size = lv_obj_get_width(obj); + if(is_symmetrical && slider->bar.cur_value < 0) knob_area.y1 = slider->bar.indic_area.y2; + else knob_area.y1 = slider->bar.indic_area.y1; + } + + lv_draw_rect_dsc_t knob_rect_dsc; + lv_draw_rect_dsc_init(&knob_rect_dsc); + lv_obj_init_draw_rect_dsc(obj, LV_PART_KNOB, &knob_rect_dsc); + /* Update knob area with knob style */ + position_knob(obj, &knob_area, knob_size, is_horizontal); + /* Update right knob area with calculated knob area */ + lv_area_copy(&slider->right_knob_area, &knob_area); + + lv_obj_draw_part_dsc_t part_draw_dsc; + lv_obj_draw_dsc_init(&part_draw_dsc, draw_ctx); + part_draw_dsc.part = LV_PART_KNOB; + part_draw_dsc.class_p = MY_CLASS; + part_draw_dsc.type = LV_SLIDER_DRAW_PART_KNOB; + part_draw_dsc.id = 0; + part_draw_dsc.draw_area = &slider->right_knob_area; + part_draw_dsc.rect_dsc = &knob_rect_dsc; + + if(lv_slider_get_mode(obj) != LV_SLIDER_MODE_RANGE) { + lv_event_send(obj, LV_EVENT_DRAW_PART_BEGIN, &part_draw_dsc); + lv_draw_rect(draw_ctx, &knob_rect_dsc, &slider->right_knob_area); + lv_event_send(obj, LV_EVENT_DRAW_PART_END, &part_draw_dsc); + } + else { + /*Save the draw part_draw_dsc. because it can be modified in the event*/ + lv_draw_rect_dsc_t knob_rect_dsc_tmp; + lv_memcpy(&knob_rect_dsc_tmp, &knob_rect_dsc, sizeof(lv_draw_rect_dsc_t)); + /* Draw the right knob */ + lv_event_send(obj, LV_EVENT_DRAW_PART_BEGIN, &part_draw_dsc); + lv_draw_rect(draw_ctx, &knob_rect_dsc, &slider->right_knob_area); + lv_event_send(obj, LV_EVENT_DRAW_PART_END, &part_draw_dsc); + + /*Calculate the second knob area*/ + if(is_horizontal) { + /*use !is_rtl to get the other knob*/ + knob_area.x1 = LV_SLIDER_KNOB_COORD(!is_rtl, slider->bar.indic_area); + } + else { + knob_area.y1 = slider->bar.indic_area.y2; + } + position_knob(obj, &knob_area, knob_size, is_horizontal); + lv_area_copy(&slider->left_knob_area, &knob_area); + + lv_memcpy(&knob_rect_dsc, &knob_rect_dsc_tmp, sizeof(lv_draw_rect_dsc_t)); + part_draw_dsc.type = LV_SLIDER_DRAW_PART_KNOB_LEFT; + part_draw_dsc.draw_area = &slider->left_knob_area; + part_draw_dsc.rect_dsc = &knob_rect_dsc; + part_draw_dsc.id = 1; + + lv_event_send(obj, LV_EVENT_DRAW_PART_BEGIN, &part_draw_dsc); + lv_draw_rect(draw_ctx, &knob_rect_dsc, &slider->left_knob_area); + lv_event_send(obj, LV_EVENT_DRAW_PART_END, &part_draw_dsc); + } +} + +static void position_knob(lv_obj_t * obj, lv_area_t * knob_area, const lv_coord_t knob_size, const bool hor) +{ + if(hor) { + knob_area->x1 -= (knob_size >> 1); + knob_area->x2 = knob_area->x1 + knob_size - 1; + knob_area->y1 = obj->coords.y1; + knob_area->y2 = obj->coords.y2; + } + else { + knob_area->y1 -= (knob_size >> 1); + knob_area->y2 = knob_area->y1 + knob_size - 1; + knob_area->x1 = obj->coords.x1; + knob_area->x2 = obj->coords.x2; + } + + lv_coord_t knob_left = lv_obj_get_style_pad_left(obj, LV_PART_KNOB); + lv_coord_t knob_right = lv_obj_get_style_pad_right(obj, LV_PART_KNOB); + lv_coord_t knob_top = lv_obj_get_style_pad_top(obj, LV_PART_KNOB); + lv_coord_t knob_bottom = lv_obj_get_style_pad_bottom(obj, LV_PART_KNOB); + + lv_coord_t transf_w = lv_obj_get_style_transform_width(obj, LV_PART_KNOB); + lv_coord_t transf_h = lv_obj_get_style_transform_height(obj, LV_PART_KNOB); + + /*Apply the paddings on the knob area*/ + knob_area->x1 -= knob_left + transf_w; + knob_area->x2 += knob_right + transf_w; + knob_area->y1 -= knob_top + transf_h; + knob_area->y2 += knob_bottom + transf_h; +} + +static bool is_slider_horizontal(lv_obj_t * obj) +{ + return lv_obj_get_width(obj) >= lv_obj_get_height(obj); +} + +#endif diff --git a/lib/lvgl/src/widgets/lv_slider.h b/lib/lvgl/src/widgets/lv_slider.h new file mode 100644 index 00000000..386950ce --- /dev/null +++ b/lib/lvgl/src/widgets/lv_slider.h @@ -0,0 +1,195 @@ +/** + * @file lv_slider.h + * + */ + +#ifndef LV_SLIDER_H +#define LV_SLIDER_H + +#ifdef __cplusplus +extern "C" { +#endif + +/********************* + * INCLUDES + *********************/ +#include "../lv_conf_internal.h" + +#if LV_USE_SLIDER != 0 + +/*Testing of dependencies*/ +#if LV_USE_BAR == 0 +#error "lv_slider: lv_bar is required. Enable it in lv_conf.h (LV_USE_BAR 1)" +#endif + +#include "../core/lv_obj.h" +#include "lv_bar.h" + +/********************* + * DEFINES + *********************/ + +/********************** + * TYPEDEFS + **********************/ + +enum { + LV_SLIDER_MODE_NORMAL = LV_BAR_MODE_NORMAL, + LV_SLIDER_MODE_SYMMETRICAL = LV_BAR_MODE_SYMMETRICAL, + LV_SLIDER_MODE_RANGE = LV_BAR_MODE_RANGE +}; +typedef uint8_t lv_slider_mode_t; + +typedef struct { + lv_bar_t bar; /*Add the ancestor's type first*/ + lv_area_t left_knob_area; + lv_area_t right_knob_area; + int32_t * value_to_set; /*Which bar value to set*/ + uint8_t dragging : 1; /*1: the slider is being dragged*/ + uint8_t left_knob_focus : 1; /*1: with encoder now the right knob can be adjusted*/ +} lv_slider_t; + +extern const lv_obj_class_t lv_slider_class; + +/** + * `type` field in `lv_obj_draw_part_dsc_t` if `class_p = lv_slider_class` + * Used in `LV_EVENT_DRAW_PART_BEGIN` and `LV_EVENT_DRAW_PART_END` + */ +typedef enum { + LV_SLIDER_DRAW_PART_KNOB, /**< The main (right) knob's rectangle*/ + LV_SLIDER_DRAW_PART_KNOB_LEFT, /**< The left knob's rectangle*/ +} lv_slider_draw_part_type_t; + +/********************** + * GLOBAL PROTOTYPES + **********************/ + +/** + * Create a slider object + * @param parent pointer to an object, it will be the parent of the new slider. + * @return pointer to the created slider + */ +lv_obj_t * lv_slider_create(lv_obj_t * parent); + +/*===================== + * Setter functions + *====================*/ + +/** + * Set a new value on the slider + * @param obj pointer to a slider object + * @param value the new value + * @param anim LV_ANIM_ON: set the value with an animation; LV_ANIM_OFF: change the value immediately + */ +static inline void lv_slider_set_value(lv_obj_t * obj, int32_t value, lv_anim_enable_t anim) +{ + lv_bar_set_value(obj, value, anim); +} + +/** + * Set a new value for the left knob of a slider + * @param obj pointer to a slider object + * @param value new value + * @param anim LV_ANIM_ON: set the value with an animation; LV_ANIM_OFF: change the value immediately + */ +static inline void lv_slider_set_left_value(lv_obj_t * obj, int32_t value, lv_anim_enable_t anim) +{ + lv_bar_set_start_value(obj, value, anim); +} + +/** + * Set minimum and the maximum values of a bar + * @param obj pointer to the slider object + * @param min minimum value + * @param max maximum value + */ +static inline void lv_slider_set_range(lv_obj_t * obj, int32_t min, int32_t max) +{ + lv_bar_set_range(obj, min, max); +} + +/** + * Set the mode of slider. + * @param obj pointer to a slider object + * @param mode the mode of the slider. See ::lv_slider_mode_t + */ +static inline void lv_slider_set_mode(lv_obj_t * obj, lv_slider_mode_t mode) +{ + lv_bar_set_mode(obj, (lv_bar_mode_t)mode); +} + +/*===================== + * Getter functions + *====================*/ + +/** + * Get the value of the main knob of a slider + * @param obj pointer to a slider object + * @return the value of the main knob of the slider + */ +static inline int32_t lv_slider_get_value(const lv_obj_t * obj) +{ + return lv_bar_get_value(obj); +} + +/** + * Get the value of the left knob of a slider + * @param obj pointer to a slider object + * @return the value of the left knob of the slider + */ +static inline int32_t lv_slider_get_left_value(const lv_obj_t * obj) +{ + return lv_bar_get_start_value(obj); +} + +/** + * Get the minimum value of a slider + * @param obj pointer to a slider object + * @return the minimum value of the slider + */ +static inline int32_t lv_slider_get_min_value(const lv_obj_t * obj) +{ + return lv_bar_get_min_value(obj); +} + +/** + * Get the maximum value of a slider + * @param obj pointer to a slider object + * @return the maximum value of the slider + */ +static inline int32_t lv_slider_get_max_value(const lv_obj_t * obj) +{ + return lv_bar_get_max_value(obj); +} + +/** + * Give the slider is being dragged or not + * @param obj pointer to a slider object + * @return true: drag in progress false: not dragged + */ +bool lv_slider_is_dragged(const lv_obj_t * obj); + +/** + * Get the mode of the slider. + * @param obj pointer to a bar object + * @return see ::lv_slider_mode_t + */ +static inline lv_slider_mode_t lv_slider_get_mode(lv_obj_t * slider) +{ + lv_bar_mode_t mode = lv_bar_get_mode(slider); + if(mode == LV_BAR_MODE_SYMMETRICAL) return LV_SLIDER_MODE_SYMMETRICAL; + else if(mode == LV_BAR_MODE_RANGE) return LV_SLIDER_MODE_RANGE; + else return LV_SLIDER_MODE_NORMAL; +} + +/********************** + * MACROS + **********************/ + +#endif /*LV_USE_SLIDER*/ + +#ifdef __cplusplus +} /*extern "C"*/ +#endif + +#endif /*LV_SLIDER_H*/ diff --git a/lib/lvgl/src/widgets/lv_switch.c b/lib/lvgl/src/widgets/lv_switch.c new file mode 100644 index 00000000..b3286104 --- /dev/null +++ b/lib/lvgl/src/widgets/lv_switch.c @@ -0,0 +1,277 @@ +/** + * @file lv_sw.c + * + */ + +/********************* + * INCLUDES + *********************/ +#include "lv_switch.h" + +#if LV_USE_SWITCH != 0 + +#include "../misc/lv_assert.h" +#include "../misc/lv_math.h" +#include "../misc/lv_anim.h" +#include "../core/lv_indev.h" +#include "../core/lv_disp.h" +#include "lv_img.h" + +/********************* + * DEFINES + *********************/ +#define MY_CLASS &lv_switch_class + +#define LV_SWITCH_IS_ANIMATING(sw) (((sw)->anim_state) != LV_SWITCH_ANIM_STATE_INV) + +/** Switch animation start value. (Not the real value of the switch just indicates process animation)*/ +#define LV_SWITCH_ANIM_STATE_START 0 + +/** Switch animation end value. (Not the real value of the switch just indicates process animation)*/ +#define LV_SWITCH_ANIM_STATE_END 256 + +/** Mark no animation is in progress*/ +#define LV_SWITCH_ANIM_STATE_INV -1 + +/********************** + * TYPEDEFS + **********************/ + +/********************** + * STATIC PROTOTYPES + **********************/ +static void lv_switch_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj); +static void lv_switch_destructor(const lv_obj_class_t * class_p, lv_obj_t * obj); +static void lv_switch_event(const lv_obj_class_t * class_p, lv_event_t * e); +static void draw_main(lv_event_t * e); + +static void lv_switch_anim_exec_cb(void * sw, int32_t value); +static void lv_switch_trigger_anim(lv_obj_t * obj); +static void lv_switch_anim_ready(lv_anim_t * a); +/********************** + * STATIC VARIABLES + **********************/ +const lv_obj_class_t lv_switch_class = { + .constructor_cb = lv_switch_constructor, + .destructor_cb = lv_switch_destructor, + .event_cb = lv_switch_event, + .width_def = (4 * LV_DPI_DEF) / 10, + .height_def = (4 * LV_DPI_DEF) / 17, + .group_def = LV_OBJ_CLASS_GROUP_DEF_TRUE, + .instance_size = sizeof(lv_switch_t), + .base_class = &lv_obj_class +}; + +/********************** + * MACROS + **********************/ + +/********************** + * GLOBAL FUNCTIONS + **********************/ + +lv_obj_t * lv_switch_create(lv_obj_t * parent) +{ + LV_LOG_INFO("begin"); + lv_obj_t * obj = lv_obj_class_create_obj(MY_CLASS, parent); + lv_obj_class_init_obj(obj); + return obj; +} + +/********************** + * STATIC FUNCTIONS + **********************/ + +static void lv_switch_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj) +{ + LV_UNUSED(class_p); + LV_TRACE_OBJ_CREATE("begin"); + + lv_switch_t * sw = (lv_switch_t *)obj; + + sw->anim_state = LV_SWITCH_ANIM_STATE_INV; + + lv_obj_clear_flag(obj, LV_OBJ_FLAG_SCROLLABLE); + lv_obj_add_flag(obj, LV_OBJ_FLAG_CHECKABLE); + lv_obj_add_flag(obj, LV_OBJ_FLAG_SCROLL_ON_FOCUS); + + LV_TRACE_OBJ_CREATE("finished"); +} + +static void lv_switch_destructor(const lv_obj_class_t * class_p, lv_obj_t * obj) +{ + LV_UNUSED(class_p); + lv_switch_t * sw = (lv_switch_t *)obj; + + lv_anim_del(sw, NULL); +} + +static void lv_switch_event(const lv_obj_class_t * class_p, lv_event_t * e) +{ + LV_UNUSED(class_p); + + lv_res_t res; + + /*Call the ancestor's event handler*/ + res = lv_obj_event_base(MY_CLASS, e); + if(res != LV_RES_OK) return; + + lv_event_code_t code = lv_event_get_code(e); + lv_obj_t * obj = lv_event_get_target(e); + + if(code == LV_EVENT_REFR_EXT_DRAW_SIZE) { + lv_coord_t knob_left = lv_obj_get_style_pad_left(obj, LV_PART_KNOB); + lv_coord_t knob_right = lv_obj_get_style_pad_right(obj, LV_PART_KNOB); + lv_coord_t knob_top = lv_obj_get_style_pad_top(obj, LV_PART_KNOB); + lv_coord_t knob_bottom = lv_obj_get_style_pad_bottom(obj, LV_PART_KNOB); + + /*The smaller size is the knob diameter*/ + lv_coord_t knob_size = LV_MAX4(knob_left, knob_right, knob_bottom, knob_top); + knob_size += _LV_SWITCH_KNOB_EXT_AREA_CORRECTION; + knob_size += lv_obj_calculate_ext_draw_size(obj, LV_PART_KNOB); + + lv_coord_t * s = lv_event_get_param(e); + *s = LV_MAX(*s, knob_size); + *s = LV_MAX(*s, lv_obj_calculate_ext_draw_size(obj, LV_PART_INDICATOR)); + } + else if(code == LV_EVENT_VALUE_CHANGED) { + lv_switch_trigger_anim(obj); + lv_obj_invalidate(obj); + } + else if(code == LV_EVENT_DRAW_MAIN) { + draw_main(e); + } +} + +static void draw_main(lv_event_t * e) +{ + lv_obj_t * obj = lv_event_get_target(e); + lv_switch_t * sw = (lv_switch_t *)obj; + + lv_draw_ctx_t * draw_ctx = lv_event_get_draw_ctx(e); + + /*Calculate the indicator area*/ + lv_coord_t bg_left = lv_obj_get_style_pad_left(obj, LV_PART_MAIN); + lv_coord_t bg_right = lv_obj_get_style_pad_right(obj, LV_PART_MAIN); + lv_coord_t bg_top = lv_obj_get_style_pad_top(obj, LV_PART_MAIN); + lv_coord_t bg_bottom = lv_obj_get_style_pad_bottom(obj, LV_PART_MAIN); + + /*Draw the indicator*/ + /*Respect the background's padding*/ + lv_area_t indic_area; + lv_area_copy(&indic_area, &obj->coords); + indic_area.x1 += bg_left; + indic_area.x2 -= bg_right; + indic_area.y1 += bg_top; + indic_area.y2 -= bg_bottom; + + lv_draw_rect_dsc_t draw_indic_dsc; + lv_draw_rect_dsc_init(&draw_indic_dsc); + lv_obj_init_draw_rect_dsc(obj, LV_PART_INDICATOR, &draw_indic_dsc); + lv_draw_rect(draw_ctx, &draw_indic_dsc, &indic_area); + + /*Draw the knob*/ + lv_coord_t anim_value_x = 0; + lv_coord_t knob_size = lv_obj_get_height(obj); + lv_coord_t anim_length = lv_area_get_width(&obj->coords) - knob_size; + + if(LV_SWITCH_IS_ANIMATING(sw)) { + /* Use the animation's coordinate */ + anim_value_x = (anim_length * sw->anim_state) / LV_SWITCH_ANIM_STATE_END; + } + else { + /* Use LV_STATE_CHECKED to decide the coordinate */ + bool chk = lv_obj_get_state(obj) & LV_STATE_CHECKED; + anim_value_x = chk ? anim_length : 0; + } + + if(LV_BASE_DIR_RTL == lv_obj_get_style_base_dir(obj, LV_PART_MAIN)) { + anim_value_x = anim_length - anim_value_x; + } + + lv_area_t knob_area; + knob_area.x1 = obj->coords.x1 + anim_value_x; + knob_area.x2 = knob_area.x1 + knob_size; + + knob_area.y1 = obj->coords.y1; + knob_area.y2 = obj->coords.y2; + + lv_coord_t knob_left = lv_obj_get_style_pad_left(obj, LV_PART_KNOB); + lv_coord_t knob_right = lv_obj_get_style_pad_right(obj, LV_PART_KNOB); + lv_coord_t knob_top = lv_obj_get_style_pad_top(obj, LV_PART_KNOB); + lv_coord_t knob_bottom = lv_obj_get_style_pad_bottom(obj, LV_PART_KNOB); + + /*Apply the paddings on the knob area*/ + knob_area.x1 -= knob_left; + knob_area.x2 += knob_right; + knob_area.y1 -= knob_top; + knob_area.y2 += knob_bottom; + + lv_draw_rect_dsc_t knob_rect_dsc; + lv_draw_rect_dsc_init(&knob_rect_dsc); + lv_obj_init_draw_rect_dsc(obj, LV_PART_KNOB, &knob_rect_dsc); + + lv_draw_rect(draw_ctx, &knob_rect_dsc, &knob_area); +} + +static void lv_switch_anim_exec_cb(void * var, int32_t value) +{ + lv_switch_t * sw = var; + sw->anim_state = value; + lv_obj_invalidate((lv_obj_t *)sw); +} + +/** + * Resets the switch's animation state to "no animation in progress". + */ +static void lv_switch_anim_ready(lv_anim_t * a) +{ + lv_switch_t * sw = a->var; + sw->anim_state = LV_SWITCH_ANIM_STATE_INV; + lv_obj_invalidate((lv_obj_t *)sw); +} + +/** + * Starts an animation for the switch knob. if the anim_time style property is greater than 0 + * @param obj the switch to animate + */ +static void lv_switch_trigger_anim(lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + lv_switch_t * sw = (lv_switch_t *)obj; + + uint32_t anim_dur_full = lv_obj_get_style_anim_time(obj, LV_PART_MAIN); + + if(anim_dur_full > 0) { + bool chk = lv_obj_get_state(obj) & LV_STATE_CHECKED; + int32_t anim_start; + int32_t anim_end; + /*No animation in progress -> simply set the values*/ + if(sw->anim_state == LV_SWITCH_ANIM_STATE_INV) { + anim_start = chk ? LV_SWITCH_ANIM_STATE_START : LV_SWITCH_ANIM_STATE_END; + anim_end = chk ? LV_SWITCH_ANIM_STATE_END : LV_SWITCH_ANIM_STATE_START; + } + /*Animation in progress. Start from the animation end value*/ + else { + anim_start = sw->anim_state; + anim_end = chk ? LV_SWITCH_ANIM_STATE_END : LV_SWITCH_ANIM_STATE_START; + } + /*Calculate actual animation duration*/ + uint32_t anim_dur = (anim_dur_full * LV_ABS(anim_start - anim_end)) / LV_SWITCH_ANIM_STATE_END; + + /*Stop the previous animation if it exists*/ + lv_anim_del(sw, NULL); + + lv_anim_t a; + lv_anim_init(&a); + lv_anim_set_var(&a, sw); + lv_anim_set_exec_cb(&a, lv_switch_anim_exec_cb); + lv_anim_set_values(&a, anim_start, anim_end); + lv_anim_set_ready_cb(&a, lv_switch_anim_ready); + lv_anim_set_time(&a, anim_dur); + lv_anim_start(&a); + } +} + + +#endif diff --git a/lib/lvgl/src/widgets/lv_switch.h b/lib/lvgl/src/widgets/lv_switch.h new file mode 100644 index 00000000..83ca81bc --- /dev/null +++ b/lib/lvgl/src/widgets/lv_switch.h @@ -0,0 +1,61 @@ +/** + * @file lv_switch.h + * + */ + +#ifndef LV_SWITCH_H +#define LV_SWITCH_H + +#ifdef __cplusplus +extern "C" { +#endif + +/********************* + * INCLUDES + *********************/ +#include "../lv_conf_internal.h" + +#if LV_USE_SWITCH != 0 + +#include "../core/lv_obj.h" + +/********************* + * DEFINES + *********************/ + +/** Switch knob extra area correction factor */ +#define _LV_SWITCH_KNOB_EXT_AREA_CORRECTION 2 + +/********************** + * TYPEDEFS + **********************/ + +typedef struct { + lv_obj_t obj; + int32_t anim_state; +} lv_switch_t; + +extern const lv_obj_class_t lv_switch_class; + +/********************** + * GLOBAL PROTOTYPES + **********************/ + +/** + * Create a switch object + * @param parent pointer to an object, it will be the parent of the new switch + * @return pointer to the created switch + */ +lv_obj_t * lv_switch_create(lv_obj_t * parent); + +/********************** + * MACROS + **********************/ + +#endif /*LV_USE_SWITCH*/ + +#ifdef __cplusplus +} /*extern "C"*/ +#endif + +#endif /*LV_SWITCH_H*/ diff --git a/lib/lvgl/src/widgets/lv_table.c b/lib/lvgl/src/widgets/lv_table.c new file mode 100644 index 00000000..5ff65ab2 --- /dev/null +++ b/lib/lvgl/src/widgets/lv_table.c @@ -0,0 +1,1007 @@ +/** + * @file lv_table.c + * + */ + +/********************* + * INCLUDES + *********************/ +#include "lv_table.h" +#if LV_USE_TABLE != 0 + +#include "../core/lv_indev.h" +#include "../misc/lv_assert.h" +#include "../misc/lv_txt.h" +#include "../misc/lv_txt_ap.h" +#include "../misc/lv_math.h" +#include "../misc/lv_printf.h" +#include "../draw/lv_draw.h" + +/********************* + * DEFINES + *********************/ +#define MY_CLASS &lv_table_class + +/********************** + * TYPEDEFS + **********************/ + +/********************** + * STATIC PROTOTYPES + **********************/ +static void lv_table_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj); +static void lv_table_destructor(const lv_obj_class_t * class_p, lv_obj_t * obj); +static void lv_table_event(const lv_obj_class_t * class_p, lv_event_t * e); +static void draw_main(lv_event_t * e); +static lv_coord_t get_row_height(lv_obj_t * obj, uint16_t row_id, const lv_font_t * font, + lv_coord_t letter_space, lv_coord_t line_space, + lv_coord_t cell_left, lv_coord_t cell_right, lv_coord_t cell_top, lv_coord_t cell_bottom); +static void refr_size_form_row(lv_obj_t * obj, uint32_t start_row); +static void refr_cell_size(lv_obj_t * obj, uint32_t row, uint32_t col); +static lv_res_t get_pressed_cell(lv_obj_t * obj, uint16_t * row, uint16_t * col); +static size_t get_cell_txt_len(const char * txt); +static void copy_cell_txt(char * dst, const char * txt); +static void get_cell_area(lv_obj_t * obj, uint16_t row, uint16_t col, lv_area_t * area); + +static inline bool is_cell_empty(void * cell) +{ + return cell == NULL; +} + +/********************** + * STATIC VARIABLES + **********************/ +const lv_obj_class_t lv_table_class = { + .constructor_cb = lv_table_constructor, + .destructor_cb = lv_table_destructor, + .event_cb = lv_table_event, + .width_def = LV_SIZE_CONTENT, + .height_def = LV_SIZE_CONTENT, + .base_class = &lv_obj_class, + .editable = LV_OBJ_CLASS_EDITABLE_TRUE, + .group_def = LV_OBJ_CLASS_GROUP_DEF_TRUE, + .instance_size = sizeof(lv_table_t), +}; +/********************** + * MACROS + **********************/ + +/********************** + * GLOBAL FUNCTIONS + **********************/ + +lv_obj_t * lv_table_create(lv_obj_t * parent) +{ + LV_LOG_INFO("begin"); + lv_obj_t * obj = lv_obj_class_create_obj(MY_CLASS, parent); + lv_obj_class_init_obj(obj); + return obj; +} + +/*===================== + * Setter functions + *====================*/ + +void lv_table_set_cell_value(lv_obj_t * obj, uint16_t row, uint16_t col, const char * txt) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + LV_ASSERT_NULL(txt); + + lv_table_t * table = (lv_table_t *)obj; + + /*Auto expand*/ + if(col >= table->col_cnt) lv_table_set_col_cnt(obj, col + 1); + if(row >= table->row_cnt) lv_table_set_row_cnt(obj, row + 1); + + uint32_t cell = row * table->col_cnt + col; + lv_table_cell_ctrl_t ctrl = 0; + + /*Save the control byte*/ + if(table->cell_data[cell]) ctrl = table->cell_data[cell][0]; + + size_t to_allocate = get_cell_txt_len(txt); + + table->cell_data[cell] = lv_mem_realloc(table->cell_data[cell], to_allocate); + LV_ASSERT_MALLOC(table->cell_data[cell]); + if(table->cell_data[cell] == NULL) return; + + copy_cell_txt(table->cell_data[cell], txt); + + table->cell_data[cell][0] = ctrl; + refr_cell_size(obj, row, col); +} + +void lv_table_set_cell_value_fmt(lv_obj_t * obj, uint16_t row, uint16_t col, const char * fmt, ...) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + LV_ASSERT_NULL(fmt); + + lv_table_t * table = (lv_table_t *)obj; + if(col >= table->col_cnt) { + lv_table_set_col_cnt(obj, col + 1); + } + + /*Auto expand*/ + if(row >= table->row_cnt) { + lv_table_set_row_cnt(obj, row + 1); + } + + uint32_t cell = row * table->col_cnt + col; + lv_table_cell_ctrl_t ctrl = 0; + + /*Save the control byte*/ + if(table->cell_data[cell]) ctrl = table->cell_data[cell][0]; + + va_list ap, ap2; + va_start(ap, fmt); + va_copy(ap2, ap); + + /*Allocate space for the new text by using trick from C99 standard section 7.19.6.12*/ + uint32_t len = lv_vsnprintf(NULL, 0, fmt, ap); + va_end(ap); + +#if LV_USE_ARABIC_PERSIAN_CHARS + /*Put together the text according to the format string*/ + char * raw_txt = lv_mem_buf_get(len + 1); + LV_ASSERT_MALLOC(raw_txt); + if(raw_txt == NULL) { + va_end(ap2); + return; + } + + lv_vsnprintf(raw_txt, len + 1, fmt, ap2); + + /*Get the size of the Arabic text and process it*/ + size_t len_ap = _lv_txt_ap_calc_bytes_cnt(raw_txt); + table->cell_data[cell] = lv_mem_realloc(table->cell_data[cell], len_ap + 1); + LV_ASSERT_MALLOC(table->cell_data[cell]); + if(table->cell_data[cell] == NULL) { + va_end(ap2); + return; + } + _lv_txt_ap_proc(raw_txt, &table->cell_data[cell][1]); + + lv_mem_buf_release(raw_txt); +#else + table->cell_data[cell] = lv_mem_realloc(table->cell_data[cell], len + 2); /*+1: trailing '\0; +1: format byte*/ + LV_ASSERT_MALLOC(table->cell_data[cell]); + if(table->cell_data[cell] == NULL) { + va_end(ap2); + return; + } + + table->cell_data[cell][len + 1] = 0; /*Ensure NULL termination*/ + + lv_vsnprintf(&table->cell_data[cell][1], len + 1, fmt, ap2); +#endif + + va_end(ap2); + + table->cell_data[cell][0] = ctrl; + + refr_cell_size(obj, row, col); +} + +void lv_table_set_row_cnt(lv_obj_t * obj, uint16_t row_cnt) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_table_t * table = (lv_table_t *)obj; + + if(table->row_cnt == row_cnt) return; + + uint16_t old_row_cnt = table->row_cnt; + table->row_cnt = row_cnt; + + table->row_h = lv_mem_realloc(table->row_h, table->row_cnt * sizeof(table->row_h[0])); + LV_ASSERT_MALLOC(table->row_h); + if(table->row_h == NULL) return; + + /*Free the unused cells*/ + if(old_row_cnt > row_cnt) { + uint16_t old_cell_cnt = old_row_cnt * table->col_cnt; + uint32_t new_cell_cnt = table->col_cnt * table->row_cnt; + uint32_t i; + for(i = new_cell_cnt; i < old_cell_cnt; i++) { + lv_mem_free(table->cell_data[i]); + } + } + + table->cell_data = lv_mem_realloc(table->cell_data, table->row_cnt * table->col_cnt * sizeof(char *)); + LV_ASSERT_MALLOC(table->cell_data); + if(table->cell_data == NULL) return; + + /*Initialize the new fields*/ + if(old_row_cnt < row_cnt) { + uint32_t old_cell_cnt = old_row_cnt * table->col_cnt; + uint32_t new_cell_cnt = table->col_cnt * table->row_cnt; + lv_memset_00(&table->cell_data[old_cell_cnt], (new_cell_cnt - old_cell_cnt) * sizeof(table->cell_data[0])); + } + + refr_size_form_row(obj, 0); +} + +void lv_table_set_col_cnt(lv_obj_t * obj, uint16_t col_cnt) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_table_t * table = (lv_table_t *)obj; + + if(table->col_cnt == col_cnt) return; + + uint16_t old_col_cnt = table->col_cnt; + table->col_cnt = col_cnt; + + char ** new_cell_data = lv_mem_alloc(table->row_cnt * table->col_cnt * sizeof(char *)); + LV_ASSERT_MALLOC(new_cell_data); + if(new_cell_data == NULL) return; + uint32_t new_cell_cnt = table->col_cnt * table->row_cnt; + + lv_memset_00(new_cell_data, new_cell_cnt * sizeof(table->cell_data[0])); + + /*The new column(s) messes up the mapping of `cell_data`*/ + uint32_t old_col_start; + uint32_t new_col_start; + uint32_t min_col_cnt = LV_MIN(old_col_cnt, col_cnt); + uint32_t row; + for(row = 0; row < table->row_cnt; row++) { + old_col_start = row * old_col_cnt; + new_col_start = row * col_cnt; + + lv_memcpy_small(&new_cell_data[new_col_start], &table->cell_data[old_col_start], + sizeof(new_cell_data[0]) * min_col_cnt); + + /*Free the old cells (only if the table becomes smaller)*/ + int32_t i; + for(i = 0; i < (int32_t)old_col_cnt - col_cnt; i++) { + uint32_t idx = old_col_start + min_col_cnt + i; + lv_mem_free(table->cell_data[idx]); + table->cell_data[idx] = NULL; + } + } + + lv_mem_free(table->cell_data); + table->cell_data = new_cell_data; + + /*Initialize the new column widths if any*/ + table->col_w = lv_mem_realloc(table->col_w, col_cnt * sizeof(table->col_w[0])); + LV_ASSERT_MALLOC(table->col_w); + if(table->col_w == NULL) return; + + uint32_t col; + for(col = old_col_cnt; col < col_cnt; col++) { + table->col_w[col] = LV_DPI_DEF; + } + + + refr_size_form_row(obj, 0) ; +} + +void lv_table_set_col_width(lv_obj_t * obj, uint16_t col_id, lv_coord_t w) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_table_t * table = (lv_table_t *)obj; + + /*Auto expand*/ + if(col_id >= table->col_cnt) lv_table_set_col_cnt(obj, col_id + 1); + + table->col_w[col_id] = w; + refr_size_form_row(obj, 0); +} + +void lv_table_add_cell_ctrl(lv_obj_t * obj, uint16_t row, uint16_t col, lv_table_cell_ctrl_t ctrl) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_table_t * table = (lv_table_t *)obj; + + /*Auto expand*/ + if(col >= table->col_cnt) lv_table_set_col_cnt(obj, col + 1); + if(row >= table->row_cnt) lv_table_set_row_cnt(obj, row + 1); + + uint32_t cell = row * table->col_cnt + col; + + if(is_cell_empty(table->cell_data[cell])) { + table->cell_data[cell] = lv_mem_alloc(2); /*+1: trailing '\0; +1: format byte*/ + LV_ASSERT_MALLOC(table->cell_data[cell]); + if(table->cell_data[cell] == NULL) return; + + table->cell_data[cell][0] = 0; + table->cell_data[cell][1] = '\0'; + } + + table->cell_data[cell][0] |= ctrl; +} + +void lv_table_clear_cell_ctrl(lv_obj_t * obj, uint16_t row, uint16_t col, lv_table_cell_ctrl_t ctrl) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_table_t * table = (lv_table_t *)obj; + + /*Auto expand*/ + if(col >= table->col_cnt) lv_table_set_col_cnt(obj, col + 1); + if(row >= table->row_cnt) lv_table_set_row_cnt(obj, row + 1); + + uint32_t cell = row * table->col_cnt + col; + + if(is_cell_empty(table->cell_data[cell])) { + table->cell_data[cell] = lv_mem_alloc(2); /*+1: trailing '\0; +1: format byte*/ + LV_ASSERT_MALLOC(table->cell_data[cell]); + if(table->cell_data[cell] == NULL) return; + + table->cell_data[cell][0] = 0; + table->cell_data[cell][1] = '\0'; + } + + table->cell_data[cell][0] &= (~ctrl); +} + +/*===================== + * Getter functions + *====================*/ + +const char * lv_table_get_cell_value(lv_obj_t * obj, uint16_t row, uint16_t col) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_table_t * table = (lv_table_t *)obj; + if(row >= table->row_cnt || col >= table->col_cnt) { + LV_LOG_WARN("invalid row or column"); + return ""; + } + uint32_t cell = row * table->col_cnt + col; + + if(is_cell_empty(table->cell_data[cell])) return ""; + + return &table->cell_data[cell][1]; /*Skip the format byte*/ +} + +uint16_t lv_table_get_row_cnt(lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_table_t * table = (lv_table_t *)obj; + return table->row_cnt; +} + +uint16_t lv_table_get_col_cnt(lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_table_t * table = (lv_table_t *)obj; + return table->col_cnt; +} + +lv_coord_t lv_table_get_col_width(lv_obj_t * obj, uint16_t col) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_table_t * table = (lv_table_t *)obj; + + if(col >= table->col_cnt) { + LV_LOG_WARN("lv_table_set_col_width: too big 'col_id'. Must be < LV_TABLE_COL_MAX."); + return 0; + } + + return table->col_w[col]; +} + +bool lv_table_has_cell_ctrl(lv_obj_t * obj, uint16_t row, uint16_t col, lv_table_cell_ctrl_t ctrl) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_table_t * table = (lv_table_t *)obj; + if(row >= table->row_cnt || col >= table->col_cnt) { + LV_LOG_WARN("lv_table_get_cell_crop: invalid row or column"); + return false; + } + uint32_t cell = row * table->col_cnt + col; + + if(is_cell_empty(table->cell_data[cell])) return false; + else return (table->cell_data[cell][0] & ctrl) == ctrl; +} + +void lv_table_get_selected_cell(lv_obj_t * obj, uint16_t * row, uint16_t * col) +{ + lv_table_t * table = (lv_table_t *)obj; + *row = table->row_act; + *col = table->col_act; +} + +/********************** + * STATIC FUNCTIONS + **********************/ + +static void lv_table_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj) +{ + LV_UNUSED(class_p); + LV_TRACE_OBJ_CREATE("begin"); + + lv_table_t * table = (lv_table_t *)obj; + + table->col_cnt = 1; + table->row_cnt = 1; + table->col_w = lv_mem_alloc(table->col_cnt * sizeof(table->col_w[0])); + table->row_h = lv_mem_alloc(table->row_cnt * sizeof(table->row_h[0])); + table->col_w[0] = LV_DPI_DEF; + table->row_h[0] = LV_DPI_DEF; + table->cell_data = lv_mem_realloc(table->cell_data, table->row_cnt * table->col_cnt * sizeof(char *)); + table->cell_data[0] = NULL; + + LV_TRACE_OBJ_CREATE("finished"); +} + +static void lv_table_destructor(const lv_obj_class_t * class_p, lv_obj_t * obj) +{ + LV_UNUSED(class_p); + lv_table_t * table = (lv_table_t *)obj; + /*Free the cell texts*/ + uint16_t i; + for(i = 0; i < table->col_cnt * table->row_cnt; i++) { + if(table->cell_data[i]) { + lv_mem_free(table->cell_data[i]); + table->cell_data[i] = NULL; + } + } + + if(table->cell_data) lv_mem_free(table->cell_data); + if(table->row_h) lv_mem_free(table->row_h); + if(table->col_w) lv_mem_free(table->col_w); +} + +static void lv_table_event(const lv_obj_class_t * class_p, lv_event_t * e) +{ + LV_UNUSED(class_p); + + lv_res_t res; + + /*Call the ancestor's event handler*/ + res = lv_obj_event_base(MY_CLASS, e); + if(res != LV_RES_OK) return; + + lv_event_code_t code = lv_event_get_code(e); + lv_obj_t * obj = lv_event_get_target(e); + lv_table_t * table = (lv_table_t *)obj; + + if(code == LV_EVENT_STYLE_CHANGED) { + refr_size_form_row(obj, 0); + } + else if(code == LV_EVENT_GET_SELF_SIZE) { + lv_point_t * p = lv_event_get_param(e); + uint32_t i; + lv_coord_t w = 0; + for(i = 0; i < table->col_cnt; i++) w += table->col_w[i]; + + lv_coord_t h = 0; + for(i = 0; i < table->row_cnt; i++) h += table->row_h[i]; + + p->x = w - 1; + p->y = h - 1; + } + else if(code == LV_EVENT_PRESSED || code == LV_EVENT_PRESSING) { + uint16_t col; + uint16_t row; + lv_res_t pr_res = get_pressed_cell(obj, &row, &col); + + if(pr_res == LV_RES_OK && (table->col_act != col || table->row_act != row)) { + table->col_act = col; + table->row_act = row; + lv_obj_invalidate(obj); + } + } + else if(code == LV_EVENT_RELEASED) { + lv_obj_invalidate(obj); + lv_indev_t * indev = lv_indev_get_act(); + lv_obj_t * scroll_obj = lv_indev_get_scroll_obj(indev); + if(table->col_act != LV_TABLE_CELL_NONE && table->row_act != LV_TABLE_CELL_NONE && scroll_obj == NULL) { + res = lv_event_send(obj, LV_EVENT_VALUE_CHANGED, NULL); + if(res != LV_RES_OK) return; + } + + lv_indev_type_t indev_type = lv_indev_get_type(lv_indev_get_act()); + if(indev_type == LV_INDEV_TYPE_POINTER || indev_type == LV_INDEV_TYPE_BUTTON) { + table->col_act = LV_TABLE_CELL_NONE; + table->row_act = LV_TABLE_CELL_NONE; + } + } + else if(code == LV_EVENT_FOCUSED) { + lv_obj_invalidate(obj); + } + else if(code == LV_EVENT_KEY) { + int32_t c = *((int32_t *)lv_event_get_param(e)); + int32_t col = table->col_act; + int32_t row = table->row_act; + if(col == LV_TABLE_CELL_NONE || row == LV_TABLE_CELL_NONE) { + table->col_act = 0; + table->row_act = 0; + lv_obj_invalidate(obj); + return; + } + + if(col >= table->col_cnt) col = 0; + if(row >= table->row_cnt) row = 0; + + if(c == LV_KEY_LEFT) col--; + else if(c == LV_KEY_RIGHT) col++; + else if(c == LV_KEY_UP) row--; + else if(c == LV_KEY_DOWN) row++; + else return; + + if(col >= table->col_cnt) { + if(row < table->row_cnt - 1) { + col = 0; + row++; + } + else { + col = table->col_cnt - 1; + } + } + else if(col < 0) { + if(row != 0) { + col = table->col_cnt - 1; + row--; + } + else { + col = 0; + } + } + + if(row >= table->row_cnt) { + row = table->row_cnt - 1; + } + else if(row < 0) { + row = 0; + } + + if(table->col_act != col || table->row_act != row) { + table->col_act = col; + table->row_act = row; + lv_obj_invalidate(obj); + + res = lv_event_send(obj, LV_EVENT_VALUE_CHANGED, NULL); + if(res != LV_RES_OK) return; + } + } + else if(code == LV_EVENT_DRAW_MAIN) { + draw_main(e); + } +} + + +static void draw_main(lv_event_t * e) +{ + lv_obj_t * obj = lv_event_get_target(e); + lv_table_t * table = (lv_table_t *)obj; + lv_draw_ctx_t * draw_ctx = lv_event_get_draw_ctx(e); + lv_area_t clip_area; + if(!_lv_area_intersect(&clip_area, &obj->coords, draw_ctx->clip_area)) return; + + const lv_area_t * clip_area_ori = draw_ctx->clip_area; + draw_ctx->clip_area = &clip_area; + + lv_point_t txt_size; + lv_area_t cell_area; + + lv_coord_t border_width = lv_obj_get_style_border_width(obj, LV_PART_MAIN); + lv_coord_t bg_top = lv_obj_get_style_pad_top(obj, LV_PART_MAIN); + lv_coord_t bg_bottom = lv_obj_get_style_pad_bottom(obj, LV_PART_MAIN); + lv_coord_t bg_left = lv_obj_get_style_pad_left(obj, LV_PART_MAIN); + lv_coord_t bg_right = lv_obj_get_style_pad_right(obj, LV_PART_MAIN); + + lv_state_t state_ori = obj->state; + obj->state = LV_STATE_DEFAULT; + obj->skip_trans = 1; + lv_draw_rect_dsc_t rect_dsc_def; + lv_draw_rect_dsc_t rect_dsc_act; /*Passed to the event to modify it*/ + lv_draw_rect_dsc_init(&rect_dsc_def); + lv_obj_init_draw_rect_dsc(obj, LV_PART_ITEMS, &rect_dsc_def); + + lv_draw_label_dsc_t label_dsc_def; + lv_draw_label_dsc_t label_dsc_act; /*Passed to the event to modify it*/ + lv_draw_label_dsc_init(&label_dsc_def); + lv_obj_init_draw_label_dsc(obj, LV_PART_ITEMS, &label_dsc_def); + obj->state = state_ori; + obj->skip_trans = 0; + + uint16_t col; + uint16_t row; + uint16_t cell = 0; + + cell_area.y2 = obj->coords.y1 + bg_top - 1 - lv_obj_get_scroll_y(obj) + border_width; + lv_coord_t scroll_x = lv_obj_get_scroll_x(obj) ; + bool rtl = lv_obj_get_style_base_dir(obj, LV_PART_MAIN) == LV_BASE_DIR_RTL; + + /*Handle custom drawer*/ + lv_obj_draw_part_dsc_t part_draw_dsc; + lv_obj_draw_dsc_init(&part_draw_dsc, draw_ctx); + part_draw_dsc.part = LV_PART_ITEMS; + part_draw_dsc.class_p = MY_CLASS; + part_draw_dsc.type = LV_TABLE_DRAW_PART_CELL; + part_draw_dsc.rect_dsc = &rect_dsc_act; + part_draw_dsc.label_dsc = &label_dsc_act; + + for(row = 0; row < table->row_cnt; row++) { + lv_coord_t h_row = table->row_h[row]; + + cell_area.y1 = cell_area.y2 + 1; + cell_area.y2 = cell_area.y1 + h_row - 1; + + if(cell_area.y1 > clip_area.y2) break; + + if(rtl) cell_area.x1 = obj->coords.x2 - bg_right - 1 - scroll_x - border_width; + else cell_area.x2 = obj->coords.x1 + bg_left - 1 - scroll_x + border_width; + + for(col = 0; col < table->col_cnt; col++) { + lv_table_cell_ctrl_t ctrl = 0; + if(table->cell_data[cell]) ctrl = table->cell_data[cell][0]; + + if(rtl) { + cell_area.x2 = cell_area.x1 - 1; + cell_area.x1 = cell_area.x2 - table->col_w[col] + 1; + } + else { + cell_area.x1 = cell_area.x2 + 1; + cell_area.x2 = cell_area.x1 + table->col_w[col] - 1; + } + + uint16_t col_merge = 0; + for(col_merge = 0; col_merge + col < table->col_cnt - 1; col_merge++) { + char * next_cell_data = table->cell_data[cell + col_merge]; + + if(is_cell_empty(next_cell_data)) break; + + lv_table_cell_ctrl_t merge_ctrl = (lv_table_cell_ctrl_t) next_cell_data[0]; + if(merge_ctrl & LV_TABLE_CELL_CTRL_MERGE_RIGHT) { + lv_coord_t offset = table->col_w[col + col_merge + 1]; + + if(rtl) cell_area.x1 -= offset; + else cell_area.x2 += offset; + } + else { + break; + } + } + + if(cell_area.y2 < clip_area.y1) { + cell += col_merge + 1; + col += col_merge; + continue; + } + + /*Expand the cell area with a half border to avoid drawing 2 borders next to each other*/ + lv_area_t cell_area_border; + lv_area_copy(&cell_area_border, &cell_area); + if((rect_dsc_def.border_side & LV_BORDER_SIDE_LEFT) && cell_area_border.x1 > obj->coords.x1 + bg_left) { + cell_area_border.x1 -= rect_dsc_def.border_width / 2; + } + if((rect_dsc_def.border_side & LV_BORDER_SIDE_TOP) && cell_area_border.y1 > obj->coords.y1 + bg_top) { + cell_area_border.y1 -= rect_dsc_def.border_width / 2; + } + if((rect_dsc_def.border_side & LV_BORDER_SIDE_RIGHT) && cell_area_border.x2 < obj->coords.x2 - bg_right - 1) { + cell_area_border.x2 += rect_dsc_def.border_width / 2 + (rect_dsc_def.border_width & 0x1); + } + if((rect_dsc_def.border_side & LV_BORDER_SIDE_BOTTOM) && + cell_area_border.y2 < obj->coords.y2 - bg_bottom - 1) { + cell_area_border.y2 += rect_dsc_def.border_width / 2 + (rect_dsc_def.border_width & 0x1); + } + + lv_state_t cell_state = LV_STATE_DEFAULT; + if(row == table->row_act && col == table->col_act) { + if(!(obj->state & LV_STATE_SCROLLED) && (obj->state & LV_STATE_PRESSED)) cell_state |= LV_STATE_PRESSED; + if(obj->state & LV_STATE_FOCUSED) cell_state |= LV_STATE_FOCUSED; + if(obj->state & LV_STATE_FOCUS_KEY) cell_state |= LV_STATE_FOCUS_KEY; + if(obj->state & LV_STATE_EDITED) cell_state |= LV_STATE_EDITED; + } + + /*Set up the draw descriptors*/ + if(cell_state == LV_STATE_DEFAULT) { + lv_memcpy(&rect_dsc_act, &rect_dsc_def, sizeof(lv_draw_rect_dsc_t)); + lv_memcpy(&label_dsc_act, &label_dsc_def, sizeof(lv_draw_label_dsc_t)); + } + /*In other cases get the styles directly without caching them*/ + else { + obj->state = cell_state; + obj->skip_trans = 1; + lv_draw_rect_dsc_init(&rect_dsc_act); + lv_draw_label_dsc_init(&label_dsc_act); + lv_obj_init_draw_rect_dsc(obj, LV_PART_ITEMS, &rect_dsc_act); + lv_obj_init_draw_label_dsc(obj, LV_PART_ITEMS, &label_dsc_act); + obj->state = state_ori; + obj->skip_trans = 0; + } + + part_draw_dsc.draw_area = &cell_area_border; + part_draw_dsc.id = row * table->col_cnt + col; + lv_event_send(obj, LV_EVENT_DRAW_PART_BEGIN, &part_draw_dsc); + + lv_draw_rect(draw_ctx, &rect_dsc_act, &cell_area_border); + + if(table->cell_data[cell]) { + const lv_coord_t cell_left = lv_obj_get_style_pad_left(obj, LV_PART_ITEMS); + const lv_coord_t cell_right = lv_obj_get_style_pad_right(obj, LV_PART_ITEMS); + const lv_coord_t cell_top = lv_obj_get_style_pad_top(obj, LV_PART_ITEMS); + const lv_coord_t cell_bottom = lv_obj_get_style_pad_bottom(obj, LV_PART_ITEMS); + lv_text_flag_t txt_flags = LV_TEXT_FLAG_NONE; + lv_area_t txt_area; + + txt_area.x1 = cell_area.x1 + cell_left; + txt_area.x2 = cell_area.x2 - cell_right; + txt_area.y1 = cell_area.y1 + cell_top; + txt_area.y2 = cell_area.y2 - cell_bottom; + + /*Align the content to the middle if not cropped*/ + bool crop = ctrl & LV_TABLE_CELL_CTRL_TEXT_CROP ? true : false; + if(crop) txt_flags = LV_TEXT_FLAG_EXPAND; + + lv_txt_get_size(&txt_size, table->cell_data[cell] + 1, label_dsc_def.font, + label_dsc_act.letter_space, label_dsc_act.line_space, + lv_area_get_width(&txt_area), txt_flags); + + /*Align the content to the middle if not cropped*/ + if(!crop) { + txt_area.y1 = cell_area.y1 + h_row / 2 - txt_size.y / 2; + txt_area.y2 = cell_area.y1 + h_row / 2 + txt_size.y / 2; + } + + lv_area_t label_clip_area; + bool label_mask_ok; + label_mask_ok = _lv_area_intersect(&label_clip_area, &clip_area, &cell_area); + if(label_mask_ok) { + draw_ctx->clip_area = &label_clip_area; + lv_draw_label(draw_ctx, &label_dsc_act, &txt_area, table->cell_data[cell] + 1, NULL); + draw_ctx->clip_area = &clip_area; + } + } + + lv_event_send(obj, LV_EVENT_DRAW_PART_END, &part_draw_dsc); + + cell += col_merge + 1; + col += col_merge; + } + } + + draw_ctx->clip_area = clip_area_ori; +} + +/* Refreshes size of the table starting from @start_row row */ +static void refr_size_form_row(lv_obj_t * obj, uint32_t start_row) +{ + const lv_coord_t cell_pad_left = lv_obj_get_style_pad_left(obj, LV_PART_ITEMS); + const lv_coord_t cell_pad_right = lv_obj_get_style_pad_right(obj, LV_PART_ITEMS); + const lv_coord_t cell_pad_top = lv_obj_get_style_pad_top(obj, LV_PART_ITEMS); + const lv_coord_t cell_pad_bottom = lv_obj_get_style_pad_bottom(obj, LV_PART_ITEMS); + + lv_coord_t letter_space = lv_obj_get_style_text_letter_space(obj, LV_PART_ITEMS); + lv_coord_t line_space = lv_obj_get_style_text_line_space(obj, LV_PART_ITEMS); + const lv_font_t * font = lv_obj_get_style_text_font(obj, LV_PART_ITEMS); + + const lv_coord_t minh = lv_obj_get_style_min_height(obj, LV_PART_ITEMS); + const lv_coord_t maxh = lv_obj_get_style_max_height(obj, LV_PART_ITEMS); + + lv_table_t * table = (lv_table_t *)obj; + uint32_t i; + for(i = start_row; i < table->row_cnt; i++) { + lv_coord_t calculated_height = get_row_height(obj, i, font, letter_space, line_space, + cell_pad_left, cell_pad_right, cell_pad_top, cell_pad_bottom); + table->row_h[i] = LV_CLAMP(minh, calculated_height, maxh); + } + + lv_obj_refresh_self_size(obj); + lv_obj_invalidate(obj); +} + + +static void refr_cell_size(lv_obj_t * obj, uint32_t row, uint32_t col) +{ + const lv_coord_t cell_pad_left = lv_obj_get_style_pad_left(obj, LV_PART_ITEMS); + const lv_coord_t cell_pad_right = lv_obj_get_style_pad_right(obj, LV_PART_ITEMS); + const lv_coord_t cell_pad_top = lv_obj_get_style_pad_top(obj, LV_PART_ITEMS); + const lv_coord_t cell_pad_bottom = lv_obj_get_style_pad_bottom(obj, LV_PART_ITEMS); + + lv_coord_t letter_space = lv_obj_get_style_text_letter_space(obj, LV_PART_ITEMS); + lv_coord_t line_space = lv_obj_get_style_text_line_space(obj, LV_PART_ITEMS); + const lv_font_t * font = lv_obj_get_style_text_font(obj, LV_PART_ITEMS); + + const lv_coord_t minh = lv_obj_get_style_min_height(obj, LV_PART_ITEMS); + const lv_coord_t maxh = lv_obj_get_style_max_height(obj, LV_PART_ITEMS); + + lv_table_t * table = (lv_table_t *)obj; + lv_coord_t calculated_height = get_row_height(obj, row, font, letter_space, line_space, + cell_pad_left, cell_pad_right, cell_pad_top, cell_pad_bottom); + + lv_coord_t prev_row_size = table->row_h[row]; + table->row_h[row] = LV_CLAMP(minh, calculated_height, maxh); + + /*If the row height havn't changed invalidate only this cell*/ + if(prev_row_size == table->row_h[row]) { + lv_area_t cell_area; + get_cell_area(obj, row, col, &cell_area); + lv_area_move(&cell_area, obj->coords.x1, obj->coords.y1); + lv_obj_invalidate_area(obj, &cell_area); + } + else { + lv_obj_refresh_self_size(obj); + lv_obj_invalidate(obj); + } +} + +static lv_coord_t get_row_height(lv_obj_t * obj, uint16_t row_id, const lv_font_t * font, + lv_coord_t letter_space, lv_coord_t line_space, + lv_coord_t cell_left, lv_coord_t cell_right, lv_coord_t cell_top, lv_coord_t cell_bottom) +{ + lv_table_t * table = (lv_table_t *)obj; + + lv_coord_t h_max = lv_font_get_line_height(font) + cell_top + cell_bottom; + /* Calculate the cell_data index where to start */ + uint16_t row_start = row_id * table->col_cnt; + + /* Traverse the cells in the row_id row */ + uint16_t cell; + uint16_t col; + for(cell = row_start, col = 0; cell < row_start + table->col_cnt; cell++, col++) { + char * cell_data = table->cell_data[cell]; + + if(is_cell_empty(cell_data)) { + continue; + } + + lv_coord_t txt_w = table->col_w[col]; + + /* Traverse the current row from the first until the penultimate column. + * Increment the text width if the cell has the LV_TABLE_CELL_CTRL_MERGE_RIGHT control, + * exit the traversal when the current cell control is not LV_TABLE_CELL_CTRL_MERGE_RIGHT */ + uint16_t col_merge = 0; + for(col_merge = 0; col_merge + col < table->col_cnt - 1; col_merge++) { + char * next_cell_data = table->cell_data[cell + col_merge]; + + if(is_cell_empty(next_cell_data)) break; + + lv_table_cell_ctrl_t ctrl = (lv_table_cell_ctrl_t) next_cell_data[0]; + if(ctrl & LV_TABLE_CELL_CTRL_MERGE_RIGHT) { + txt_w += table->col_w[col + col_merge + 1]; + } + else { + break; + } + } + + lv_table_cell_ctrl_t ctrl = (lv_table_cell_ctrl_t) cell_data[0]; + + /*When cropping the text we can assume the row height is equal to the line height*/ + if(ctrl & LV_TABLE_CELL_CTRL_TEXT_CROP) { + h_max = LV_MAX(lv_font_get_line_height(font) + cell_top + cell_bottom, + h_max); + } + /*Else we have to calculate the height of the cell text*/ + else { + lv_point_t txt_size; + txt_w -= cell_left + cell_right; + + lv_txt_get_size(&txt_size, table->cell_data[cell] + 1, font, + letter_space, line_space, txt_w, LV_TEXT_FLAG_NONE); + + h_max = LV_MAX(txt_size.y + cell_top + cell_bottom, h_max); + /*Skip until one element after the last merged column*/ + cell += col_merge; + col += col_merge; + } + } + + return h_max; +} + +static lv_res_t get_pressed_cell(lv_obj_t * obj, uint16_t * row, uint16_t * col) +{ + lv_table_t * table = (lv_table_t *)obj; + + lv_indev_type_t type = lv_indev_get_type(lv_indev_get_act()); + if(type != LV_INDEV_TYPE_POINTER && type != LV_INDEV_TYPE_BUTTON) { + if(col) *col = LV_TABLE_CELL_NONE; + if(row) *row = LV_TABLE_CELL_NONE; + return LV_RES_INV; + } + + lv_point_t p; + lv_indev_get_point(lv_indev_get_act(), &p); + + lv_coord_t tmp; + if(col) { + lv_coord_t x = p.x + lv_obj_get_scroll_x(obj); + + if(lv_obj_get_style_base_dir(obj, LV_PART_MAIN) == LV_BASE_DIR_RTL) { + x = obj->coords.x2 - lv_obj_get_style_pad_right(obj, LV_PART_MAIN) - x; + } + else { + x -= obj->coords.x1; + x -= lv_obj_get_style_pad_left(obj, LV_PART_MAIN); + } + + *col = 0; + tmp = 0; + for(*col = 0; *col < table->col_cnt; (*col)++) { + tmp += table->col_w[*col]; + if(x < tmp) break; + } + } + + if(row) { + lv_coord_t y = p.y + lv_obj_get_scroll_y(obj);; + y -= obj->coords.y1; + y -= lv_obj_get_style_pad_top(obj, LV_PART_MAIN); + + *row = 0; + tmp = 0; + + for(*row = 0; *row < table->row_cnt; (*row)++) { + tmp += table->row_h[*row]; + if(y < tmp) break; + } + } + + return LV_RES_OK; +} + +/* Returns number of bytes to allocate based on chars configuration */ +static size_t get_cell_txt_len(const char * txt) +{ + size_t retval = 0; + +#if LV_USE_ARABIC_PERSIAN_CHARS + retval = _lv_txt_ap_calc_bytes_cnt(txt) + 1; +#else + /* cell_data layout: [ctrl][txt][trailing '\0' terminator] + * +2 because of the trailing '\0' and the ctrl */ + retval = strlen(txt) + 2; +#endif + + return retval; +} + +/* Copy txt into dst skipping the format byte */ +static void copy_cell_txt(char * dst, const char * txt) +{ +#if LV_USE_ARABIC_PERSIAN_CHARS + _lv_txt_ap_proc(txt, &dst[1]); +#else + strcpy(&dst[1], txt); +#endif +} + +static void get_cell_area(lv_obj_t * obj, uint16_t row, uint16_t col, lv_area_t * area) +{ + lv_table_t * table = (lv_table_t *)obj; + + uint32_t c; + area->x1 = 0; + for(c = 0; c < col; c++) { + area->x1 += table->col_w[c]; + } + + bool rtl = lv_obj_get_style_base_dir(obj, LV_PART_MAIN) == LV_BASE_DIR_RTL; + if(rtl) { + area->x1 += lv_obj_get_scroll_x(obj); + lv_coord_t w = lv_obj_get_width(obj); + area->x2 = w - area->x1 - lv_obj_get_style_pad_right(obj, 0); + area->x1 = area->x2 - table->col_w[col]; + } + else { + area->x1 -= lv_obj_get_scroll_x(obj); + area->x1 += lv_obj_get_style_pad_left(obj, 0); + area->x2 = area->x1 + table->col_w[col] - 1; + } + + uint32_t r; + area->y1 = 0; + for(r = 0; r < row; r++) { + area->y1 += table->row_h[r]; + } + + area->y1 += lv_obj_get_style_pad_top(obj, 0); + area->y1 -= lv_obj_get_scroll_y(obj); + area->y2 = area->y1 + table->row_h[row] - 1; + +} + +#endif diff --git a/lib/lvgl/src/widgets/lv_table.h b/lib/lvgl/src/widgets/lv_table.h new file mode 100644 index 00000000..91062708 --- /dev/null +++ b/lib/lvgl/src/widgets/lv_table.h @@ -0,0 +1,210 @@ +/** + * @file lv_table.h + * + */ + +#ifndef LV_TABLE_H +#define LV_TABLE_H + +#ifdef __cplusplus +extern "C" { +#endif + +/********************* + * INCLUDES + *********************/ +#include "../lv_conf_internal.h" + +#if LV_USE_TABLE != 0 + +/*Testing of dependencies*/ +#if LV_USE_LABEL == 0 +#error "lv_table: lv_label is required. Enable it in lv_conf.h (LV_USE_LABEL 1)" +#endif + +#include "../core/lv_obj.h" +#include "lv_label.h" + +/********************* + * DEFINES + *********************/ +#define LV_TABLE_CELL_NONE 0XFFFF +LV_EXPORT_CONST_INT(LV_TABLE_CELL_NONE); + +/********************** + * TYPEDEFS + **********************/ + +enum { + LV_TABLE_CELL_CTRL_MERGE_RIGHT = 1 << 0, + LV_TABLE_CELL_CTRL_TEXT_CROP = 1 << 1, + LV_TABLE_CELL_CTRL_CUSTOM_1 = 1 << 4, + LV_TABLE_CELL_CTRL_CUSTOM_2 = 1 << 5, + LV_TABLE_CELL_CTRL_CUSTOM_3 = 1 << 6, + LV_TABLE_CELL_CTRL_CUSTOM_4 = 1 << 7, +}; + +typedef uint8_t lv_table_cell_ctrl_t; + +/*Data of table*/ +typedef struct { + lv_obj_t obj; + uint16_t col_cnt; + uint16_t row_cnt; + char ** cell_data; + lv_coord_t * row_h; + lv_coord_t * col_w; + uint16_t col_act; + uint16_t row_act; +} lv_table_t; + +extern const lv_obj_class_t lv_table_class; + +/** + * `type` field in `lv_obj_draw_part_dsc_t` if `class_p = lv_table_class` + * Used in `LV_EVENT_DRAW_PART_BEGIN` and `LV_EVENT_DRAW_PART_END` + */ +typedef enum { + LV_TABLE_DRAW_PART_CELL, /**< A cell*/ +} lv_table_draw_part_type_t; + +/********************** + * GLOBAL PROTOTYPES + **********************/ + +/** + * Create a table object + * @param parent pointer to an object, it will be the parent of the new table + * @return pointer to the created table + */ +lv_obj_t * lv_table_create(lv_obj_t * parent); + +/*===================== + * Setter functions + *====================*/ + +/** + * Set the value of a cell. + * @param obj pointer to a Table object + * @param row id of the row [0 .. row_cnt -1] + * @param col id of the column [0 .. col_cnt -1] + * @param txt text to display in the cell. It will be copied and saved so this variable is not required after this function call. + * @note New roes/columns are added automatically if required + */ +void lv_table_set_cell_value(lv_obj_t * obj, uint16_t row, uint16_t col, const char * txt); + +/** + * Set the value of a cell. Memory will be allocated to store the text by the table. + * @param obj pointer to a Table object + * @param row id of the row [0 .. row_cnt -1] + * @param col id of the column [0 .. col_cnt -1] + * @param fmt `printf`-like format + * @note New roes/columns are added automatically if required + */ +void lv_table_set_cell_value_fmt(lv_obj_t * obj, uint16_t row, uint16_t col, const char * fmt, ...); + +/** + * Set the number of rows + * @param obj table pointer to a Table object + * @param row_cnt number of rows + */ +void lv_table_set_row_cnt(lv_obj_t * obj, uint16_t row_cnt); + +/** + * Set the number of columns + * @param obj table pointer to a Table object + * @param col_cnt number of columns. + */ +void lv_table_set_col_cnt(lv_obj_t * obj, uint16_t col_cnt); + +/** + * Set the width of a column + * @param obj table pointer to a Table object + * @param col_id id of the column [0 .. LV_TABLE_COL_MAX -1] + * @param w width of the column + */ +void lv_table_set_col_width(lv_obj_t * obj, uint16_t col_id, lv_coord_t w); + +/** + * Add control bits to the cell. + * @param obj pointer to a Table object + * @param row id of the row [0 .. row_cnt -1] + * @param col id of the column [0 .. col_cnt -1] + * @param ctrl OR-ed values from ::lv_table_cell_ctrl_t + */ +void lv_table_add_cell_ctrl(lv_obj_t * obj, uint16_t row, uint16_t col, lv_table_cell_ctrl_t ctrl); + + +/** + * Clear control bits of the cell. + * @param obj pointer to a Table object + * @param row id of the row [0 .. row_cnt -1] + * @param col id of the column [0 .. col_cnt -1] + * @param ctrl OR-ed values from ::lv_table_cell_ctrl_t + */ +void lv_table_clear_cell_ctrl(lv_obj_t * obj, uint16_t row, uint16_t col, lv_table_cell_ctrl_t ctrl); + +/*===================== + * Getter functions + *====================*/ + +/** + * Get the value of a cell. + * @param obj pointer to a Table object + * @param row id of the row [0 .. row_cnt -1] + * @param col id of the column [0 .. col_cnt -1] + * @return text in the cell + */ +const char * lv_table_get_cell_value(lv_obj_t * obj, uint16_t row, uint16_t col); + +/** + * Get the number of rows. + * @param obj table pointer to a Table object + * @return number of rows. + */ +uint16_t lv_table_get_row_cnt(lv_obj_t * obj); + +/** + * Get the number of columns. + * @param obj table pointer to a Table object + * @return number of columns. + */ +uint16_t lv_table_get_col_cnt(lv_obj_t * obj); + +/** + * Get the width of a column + * @param obj table pointer to a Table object + * @param col id of the column [0 .. LV_TABLE_COL_MAX -1] + * @return width of the column + */ +lv_coord_t lv_table_get_col_width(lv_obj_t * obj, uint16_t col); + +/** + * Get whether a cell has the control bits + * @param obj pointer to a Table object + * @param row id of the row [0 .. row_cnt -1] + * @param col id of the column [0 .. col_cnt -1] + * @param ctrl OR-ed values from ::lv_table_cell_ctrl_t + * @return true: all control bits are set; false: not all control bits are set + */ +bool lv_table_has_cell_ctrl(lv_obj_t * obj, uint16_t row, uint16_t col, lv_table_cell_ctrl_t ctrl); + +/** + * Get the selected cell (pressed and or focused) + * @param obj pointer to a table object + * @param row pointer to variable to store the selected row (LV_TABLE_CELL_NONE: if no cell selected) + * @param col pointer to variable to store the selected column (LV_TABLE_CELL_NONE: if no cell selected) + */ +void lv_table_get_selected_cell(lv_obj_t * obj, uint16_t * row, uint16_t * col); + +/********************** + * MACROS + **********************/ + +#endif /*LV_USE_TABLE*/ + +#ifdef __cplusplus +} /*extern "C"*/ +#endif + +#endif /*LV_TABLE_H*/ diff --git a/lib/lvgl/src/widgets/lv_textarea.c b/lib/lvgl/src/widgets/lv_textarea.c new file mode 100644 index 00000000..4d497e66 --- /dev/null +++ b/lib/lvgl/src/widgets/lv_textarea.c @@ -0,0 +1,1370 @@ +/** + * @file lv_ta.c + * + */ + +/********************* + * INCLUDES + *********************/ +#include "lv_textarea.h" +#if LV_USE_TEXTAREA != 0 + +#include <string.h> +#include "../misc/lv_assert.h" +#include "../core/lv_group.h" +#include "../core/lv_refr.h" +#include "../core/lv_indev.h" +#include "../draw/lv_draw.h" +#include "../misc/lv_anim.h" +#include "../misc/lv_txt.h" +#include "../misc/lv_math.h" + +/********************* + * DEFINES + *********************/ +#define MY_CLASS &lv_textarea_class + +/*Test configuration*/ +#ifndef LV_TEXTAREA_DEF_CURSOR_BLINK_TIME + #define LV_TEXTAREA_DEF_CURSOR_BLINK_TIME 400 /*ms*/ +#endif + +#ifndef LV_TEXTAREA_DEF_PWD_SHOW_TIME + #define LV_TEXTAREA_DEF_PWD_SHOW_TIME 1500 /*ms*/ +#endif + +#define LV_TEXTAREA_PWD_BULLET_UNICODE 0x2022 +#define IGNORE_KERNING '\0' + +/********************** + * TYPEDEFS + **********************/ + +/********************** + * STATIC PROTOTYPES + **********************/ +static void lv_textarea_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj); +static void lv_textarea_destructor(const lv_obj_class_t * class_p, lv_obj_t * obj); +static void lv_textarea_event(const lv_obj_class_t * class_p, lv_event_t * e); +static void label_event_cb(lv_event_t * e); +static void cursor_blink_anim_cb(void * obj, int32_t show); +static void pwd_char_hider_anim(void * obj, int32_t x); +static void pwd_char_hider_anim_ready(lv_anim_t * a); +static void pwd_char_hider(lv_obj_t * obj); +static bool char_is_accepted(lv_obj_t * obj, uint32_t c); +static void start_cursor_blink(lv_obj_t * obj); +static void refr_cursor_area(lv_obj_t * obj); +static void update_cursor_position_on_click(lv_event_t * e); +static lv_res_t insert_handler(lv_obj_t * obj, const char * txt); +static void draw_placeholder(lv_event_t * e); +static void draw_cursor(lv_event_t * e); +static void auto_hide_characters(lv_obj_t * obj); +static inline bool is_valid_but_non_printable_char(const uint32_t letter); + +/********************** + * STATIC VARIABLES + **********************/ +const lv_obj_class_t lv_textarea_class = { + .constructor_cb = lv_textarea_constructor, + .destructor_cb = lv_textarea_destructor, + .event_cb = lv_textarea_event, + .group_def = LV_OBJ_CLASS_GROUP_DEF_TRUE, + .width_def = LV_DPI_DEF * 2, + .height_def = LV_DPI_DEF, + .instance_size = sizeof(lv_textarea_t), + .base_class = &lv_obj_class +}; + +static const char * ta_insert_replace; + +/********************** + * MACROS + **********************/ + +/********************** + * GLOBAL FUNCTIONS + **********************/ + +lv_obj_t * lv_textarea_create(lv_obj_t * parent) +{ + LV_LOG_INFO("begin"); + lv_obj_t * obj = lv_obj_class_create_obj(MY_CLASS, parent); + lv_obj_class_init_obj(obj); + return obj; +} + +/*====================== + * Add/remove functions + *=====================*/ + +void lv_textarea_add_char(lv_obj_t * obj, uint32_t c) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_textarea_t * ta = (lv_textarea_t *)obj; + + if(ta->one_line && (c == '\n' || c == '\r')) { + LV_LOG_INFO("Text area: line break ignored in one-line mode"); + return; + } + + uint32_t u32_buf[2]; + u32_buf[0] = c; + u32_buf[1] = 0; + + const char * letter_buf = (char *)&u32_buf; + +#if LV_BIG_ENDIAN_SYSTEM + if(c != 0) while(*letter_buf == 0) ++letter_buf; +#endif + + lv_res_t res = insert_handler(obj, letter_buf); + if(res != LV_RES_OK) return; + + uint32_t c_uni = _lv_txt_encoded_next((const char *)&c, NULL); + + if(char_is_accepted(obj, c_uni) == false) { + LV_LOG_INFO("Character is not accepted by the text area (too long text or not in the accepted list)"); + return; + } + + if(ta->pwd_mode) pwd_char_hider(obj); /*Make sure all the current text contains only '*'*/ + + /*If the textarea is empty, invalidate it to hide the placeholder*/ + if(ta->placeholder_txt) { + const char * txt = lv_label_get_text(ta->label); + if(txt[0] == '\0') lv_obj_invalidate(obj); + } + + lv_label_ins_text(ta->label, ta->cursor.pos, letter_buf); /*Insert the character*/ + lv_textarea_clear_selection(obj); /*Clear selection*/ + + if(ta->pwd_mode) { + /*+2: the new char + \0*/ + size_t realloc_size = strlen(ta->pwd_tmp) + strlen(letter_buf) + 1; + ta->pwd_tmp = lv_mem_realloc(ta->pwd_tmp, realloc_size); + LV_ASSERT_MALLOC(ta->pwd_tmp); + if(ta->pwd_tmp == NULL) return; + + _lv_txt_ins(ta->pwd_tmp, ta->cursor.pos, (const char *)letter_buf); + + /*Auto hide characters*/ + auto_hide_characters(obj); + } + + /*Move the cursor after the new character*/ + lv_textarea_set_cursor_pos(obj, lv_textarea_get_cursor_pos(obj) + 1); + + lv_event_send(obj, LV_EVENT_VALUE_CHANGED, NULL); +} + +void lv_textarea_add_text(lv_obj_t * obj, const char * txt) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + LV_ASSERT_NULL(txt); + + lv_textarea_t * ta = (lv_textarea_t *)obj; + + if(ta->pwd_mode) pwd_char_hider(obj); /*Make sure all the current text contains only '*'*/ + + /*Add the character one-by-one if not all characters are accepted or there is character limit.*/ + if(lv_textarea_get_accepted_chars(obj) || lv_textarea_get_max_length(obj)) { + uint32_t i = 0; + while(txt[i] != '\0') { + uint32_t c = _lv_txt_encoded_next(txt, &i); + lv_textarea_add_char(obj, _lv_txt_unicode_to_encoded(c)); + } + return; + } + + lv_res_t res = insert_handler(obj, txt); + if(res != LV_RES_OK) return; + + /*If the textarea is empty, invalidate it to hide the placeholder*/ + if(ta->placeholder_txt) { + const char * txt_act = lv_label_get_text(ta->label); + if(txt_act[0] == '\0') lv_obj_invalidate(obj); + } + + /*Insert the text*/ + lv_label_ins_text(ta->label, ta->cursor.pos, txt); + lv_textarea_clear_selection(obj); + + if(ta->pwd_mode) { + size_t realloc_size = strlen(ta->pwd_tmp) + strlen(txt) + 1; + ta->pwd_tmp = lv_mem_realloc(ta->pwd_tmp, realloc_size); + LV_ASSERT_MALLOC(ta->pwd_tmp); + if(ta->pwd_tmp == NULL) return; + + _lv_txt_ins(ta->pwd_tmp, ta->cursor.pos, txt); + + /*Auto hide characters*/ + auto_hide_characters(obj); + } + + /*Move the cursor after the new text*/ + lv_textarea_set_cursor_pos(obj, lv_textarea_get_cursor_pos(obj) + _lv_txt_get_encoded_length(txt)); + + lv_event_send(obj, LV_EVENT_VALUE_CHANGED, NULL); +} + +void lv_textarea_del_char(lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_textarea_t * ta = (lv_textarea_t *)obj; + uint32_t cur_pos = ta->cursor.pos; + + if(cur_pos == 0) return; + + char del_buf[2] = {LV_KEY_DEL, '\0'}; + + lv_res_t res = insert_handler(obj, del_buf); + if(res != LV_RES_OK) return; + + char * label_txt = lv_label_get_text(ta->label); + + /*Delete a character*/ + _lv_txt_cut(label_txt, ta->cursor.pos - 1, 1); + + /*Refresh the label*/ + lv_label_set_text(ta->label, label_txt); + lv_textarea_clear_selection(obj); + + /*If the textarea became empty, invalidate it to hide the placeholder*/ + if(ta->placeholder_txt) { + const char * txt = lv_label_get_text(ta->label); + if(txt[0] == '\0') lv_obj_invalidate(obj); + } + + if(ta->pwd_mode) { + _lv_txt_cut(ta->pwd_tmp, ta->cursor.pos - 1, 1); + + ta->pwd_tmp = lv_mem_realloc(ta->pwd_tmp, strlen(ta->pwd_tmp) + 1); + LV_ASSERT_MALLOC(ta->pwd_tmp); + if(ta->pwd_tmp == NULL) return; + } + + /*Move the cursor to the place of the deleted character*/ + lv_textarea_set_cursor_pos(obj, ta->cursor.pos - 1); + + lv_event_send(obj, LV_EVENT_VALUE_CHANGED, NULL); + +} + +void lv_textarea_del_char_forward(lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + uint32_t cp = lv_textarea_get_cursor_pos(obj); + lv_textarea_set_cursor_pos(obj, cp + 1); + if(cp != lv_textarea_get_cursor_pos(obj)) lv_textarea_del_char(obj); +} + +/*===================== + * Setter functions + *====================*/ + +void lv_textarea_set_text(lv_obj_t * obj, const char * txt) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + LV_ASSERT_NULL(txt); + + lv_textarea_t * ta = (lv_textarea_t *)obj; + + /*Clear the existing selection*/ + lv_textarea_clear_selection(obj); + + /*Add the character one-by-one if not all characters are accepted or there is character limit.*/ + if(lv_textarea_get_accepted_chars(obj) || lv_textarea_get_max_length(obj)) { + lv_label_set_text(ta->label, ""); + lv_textarea_set_cursor_pos(obj, LV_TEXTAREA_CURSOR_LAST); + if(ta->pwd_mode) { + ta->pwd_tmp[0] = '\0'; /*Clear the password too*/ + } + uint32_t i = 0; + while(txt[i] != '\0') { + uint32_t c = _lv_txt_encoded_next(txt, &i); + lv_textarea_add_char(obj, _lv_txt_unicode_to_encoded(c)); + } + } + else { + lv_label_set_text(ta->label, txt); + lv_textarea_set_cursor_pos(obj, LV_TEXTAREA_CURSOR_LAST); + } + + /*If the textarea is empty, invalidate it to hide the placeholder*/ + if(ta->placeholder_txt) { + const char * txt_act = lv_label_get_text(ta->label); + if(txt_act[0] == '\0') lv_obj_invalidate(obj); + } + + if(ta->pwd_mode) { + ta->pwd_tmp = lv_mem_realloc(ta->pwd_tmp, strlen(txt) + 1); + LV_ASSERT_MALLOC(ta->pwd_tmp); + if(ta->pwd_tmp == NULL) return; + strcpy(ta->pwd_tmp, txt); + + /*Auto hide characters*/ + auto_hide_characters(obj); + } + + lv_event_send(obj, LV_EVENT_VALUE_CHANGED, NULL); +} + +void lv_textarea_set_placeholder_text(lv_obj_t * obj, const char * txt) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + LV_ASSERT_NULL(txt); + + lv_textarea_t * ta = (lv_textarea_t *)obj; + + size_t txt_len = strlen(txt); + if((txt_len == 0) && (ta->placeholder_txt)) { + lv_mem_free(ta->placeholder_txt); + ta->placeholder_txt = NULL; + } + else { + /*Allocate memory for the placeholder_txt text*/ + /*NOTE: Using special realloc behavior, malloc-like when data_p is NULL*/ + ta->placeholder_txt = lv_mem_realloc(ta->placeholder_txt, txt_len + 1); + LV_ASSERT_MALLOC(ta->placeholder_txt); + if(ta->placeholder_txt == NULL) { + LV_LOG_ERROR("lv_textarea_set_placeholder_text: couldn't allocate memory for placeholder"); + return; + } + + strcpy(ta->placeholder_txt, txt); + ta->placeholder_txt[txt_len] = '\0'; + } + + lv_obj_invalidate(obj); +} + +void lv_textarea_set_cursor_pos(lv_obj_t * obj, int32_t pos) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_textarea_t * ta = (lv_textarea_t *)obj; + if((uint32_t)ta->cursor.pos == (uint32_t)pos) return; + + uint32_t len = _lv_txt_get_encoded_length(lv_label_get_text(ta->label)); + + if(pos < 0) pos = len + pos; + + if(pos > (int32_t)len || pos == LV_TEXTAREA_CURSOR_LAST) pos = len; + + ta->cursor.pos = pos; + + /*Position the label to make the cursor visible*/ + lv_obj_update_layout(obj); + + lv_point_t cur_pos; + const lv_font_t * font = lv_obj_get_style_text_font(obj, LV_PART_MAIN); + lv_label_get_letter_pos(ta->label, pos, &cur_pos); + + /*The text area needs to have it's final size to see if the cursor is out of the area or not*/ + + /*Check the top*/ + lv_coord_t font_h = lv_font_get_line_height(font); + if(cur_pos.y < lv_obj_get_scroll_top(obj)) { + lv_obj_scroll_to_y(obj, cur_pos.y, LV_ANIM_ON); + } + /*Check the bottom*/ + lv_coord_t h = lv_obj_get_content_height(obj); + if(cur_pos.y + font_h - lv_obj_get_scroll_top(obj) > h) { + lv_obj_scroll_to_y(obj, cur_pos.y - h + font_h, LV_ANIM_ON); + } + + /*Check the left*/ + if(cur_pos.x < lv_obj_get_scroll_left(obj)) { + lv_obj_scroll_to_x(obj, cur_pos.x, LV_ANIM_ON); + } + /*Check the right*/ + lv_coord_t w = lv_obj_get_content_width(obj); + if(cur_pos.x + font_h - lv_obj_get_scroll_left(obj) > w) { + lv_obj_scroll_to_x(obj, cur_pos.x - w + font_h, LV_ANIM_ON); + } + + ta->cursor.valid_x = cur_pos.x; + + start_cursor_blink(obj); + + refr_cursor_area(obj); +} + +void lv_textarea_set_cursor_click_pos(lv_obj_t * obj, bool en) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_textarea_t * ta = (lv_textarea_t *)obj; + ta->cursor.click_pos = en ? 1U : 0U; +} + +void lv_textarea_set_password_mode(lv_obj_t * obj, bool en) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_textarea_t * ta = (lv_textarea_t *)obj; + if(ta->pwd_mode == en) return; + + ta->pwd_mode = en ? 1U : 0U; + /*Pwd mode is now enabled*/ + if(en) { + char * txt = lv_label_get_text(ta->label); + size_t len = strlen(txt); + + ta->pwd_tmp = lv_mem_alloc(len + 1); + LV_ASSERT_MALLOC(ta->pwd_tmp); + if(ta->pwd_tmp == NULL) return; + + strcpy(ta->pwd_tmp, txt); + + pwd_char_hider(obj); + + lv_textarea_clear_selection(obj); + } + /*Pwd mode is now disabled*/ + else { + lv_textarea_clear_selection(obj); + lv_label_set_text(ta->label, ta->pwd_tmp); + lv_mem_free(ta->pwd_tmp); + ta->pwd_tmp = NULL; + } + + refr_cursor_area(obj); +} + +void lv_textarea_set_password_bullet(lv_obj_t * obj, const char * bullet) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + LV_ASSERT_NULL(bullet); + + lv_textarea_t * ta = (lv_textarea_t *)obj; + + if(!bullet && (ta->pwd_bullet)) { + lv_mem_free(ta->pwd_bullet); + ta->pwd_bullet = NULL; + } + else { + size_t txt_len = strlen(bullet); + + /*Allocate memory for the pwd_bullet text*/ + /*NOTE: Using special realloc behavior, malloc-like when data_p is NULL*/ + ta->pwd_bullet = lv_mem_realloc(ta->pwd_bullet, txt_len + 1); + LV_ASSERT_MALLOC(ta->pwd_bullet); + if(ta->pwd_bullet == NULL) { + LV_LOG_ERROR("lv_textarea_set_password_bullet: couldn't allocate memory for bullet"); + return; + } + + strcpy(ta->pwd_bullet, bullet); + ta->pwd_bullet[txt_len] = '\0'; + } + + lv_obj_invalidate(obj); +} + +void lv_textarea_set_one_line(lv_obj_t * obj, bool en) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_textarea_t * ta = (lv_textarea_t *)obj; + if(ta->one_line == en) return; + + ta->one_line = en ? 1U : 0U; + lv_coord_t width = en ? LV_SIZE_CONTENT : lv_pct(100); + lv_coord_t min_width_value = en ? lv_pct(100) : 0; + + lv_obj_set_width(ta->label, width); + lv_obj_set_style_min_width(ta->label, min_width_value, 0); + + if(en) { + lv_obj_set_height(obj, LV_SIZE_CONTENT); + } + else { + lv_obj_remove_local_style_prop(obj, LV_STYLE_HEIGHT, LV_PART_MAIN); + } + + lv_obj_scroll_to(obj, 0, 0, LV_ANIM_OFF); +} + +void lv_textarea_set_accepted_chars(lv_obj_t * obj, const char * list) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_textarea_t * ta = (lv_textarea_t *)obj; + + ta->accepted_chars = list; +} + +void lv_textarea_set_max_length(lv_obj_t * obj, uint32_t num) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_textarea_t * ta = (lv_textarea_t *)obj; + + ta->max_length = num; +} + +void lv_textarea_set_insert_replace(lv_obj_t * obj, const char * txt) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + LV_UNUSED(obj); + ta_insert_replace = txt; +} + +void lv_textarea_set_text_selection(lv_obj_t * obj, bool en) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + +#if LV_LABEL_TEXT_SELECTION + lv_textarea_t * ta = (lv_textarea_t *)obj; + + ta->text_sel_en = en; + + if(!en) lv_textarea_clear_selection(obj); +#else + LV_UNUSED(obj); /*Unused*/ + LV_UNUSED(en); /*Unused*/ +#endif +} + +void lv_textarea_set_password_show_time(lv_obj_t * obj, uint16_t time) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_textarea_t * ta = (lv_textarea_t *)obj; + ta->pwd_show_time = time; +} + +void lv_textarea_set_align(lv_obj_t * obj, lv_text_align_t align) +{ + LV_LOG_WARN("Deprecated: use the normal text_align style property instead"); + lv_obj_set_style_text_align(obj, align, 0); + + switch(align) { + default: + case LV_TEXT_ALIGN_LEFT: + lv_obj_align(lv_textarea_get_label(obj), LV_ALIGN_TOP_LEFT, 0, 0); + break; + case LV_TEXT_ALIGN_RIGHT: + lv_obj_align(lv_textarea_get_label(obj), LV_ALIGN_TOP_RIGHT, 0, 0); + break; + case LV_TEXT_ALIGN_CENTER: + lv_obj_align(lv_textarea_get_label(obj), LV_ALIGN_TOP_MID, 0, 0); + break; + } +} + +/*===================== + * Getter functions + *====================*/ + +const char * lv_textarea_get_text(const lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_textarea_t * ta = (lv_textarea_t *)obj; + + const char * txt; + if(ta->pwd_mode == 0) { + txt = lv_label_get_text(ta->label); + } + else { + txt = ta->pwd_tmp; + } + + return txt; +} + +const char * lv_textarea_get_placeholder_text(lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_textarea_t * ta = (lv_textarea_t *)obj; + if(ta->placeholder_txt) return ta->placeholder_txt; + else return ""; +} + +lv_obj_t * lv_textarea_get_label(const lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_textarea_t * ta = (lv_textarea_t *)obj; + return ta->label; +} + +uint32_t lv_textarea_get_cursor_pos(const lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_textarea_t * ta = (lv_textarea_t *)obj; + return ta->cursor.pos; +} + +bool lv_textarea_get_cursor_click_pos(lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_textarea_t * ta = (lv_textarea_t *)obj; + return ta->cursor.click_pos ? true : false; +} + +bool lv_textarea_get_password_mode(const lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_textarea_t * ta = (lv_textarea_t *)obj; + return ta->pwd_mode == 1U; +} + +const char * lv_textarea_get_password_bullet(lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_textarea_t * ta = (lv_textarea_t *)obj; + + if(ta->pwd_bullet) return ta->pwd_bullet; + + lv_font_glyph_dsc_t g; + const lv_font_t * font = lv_obj_get_style_text_font(obj, LV_PART_MAIN); + + /*If the textarea's font has the bullet character use it else fallback to "*"*/ + if(lv_font_get_glyph_dsc(font, &g, LV_TEXTAREA_PWD_BULLET_UNICODE, 0)) + return LV_SYMBOL_BULLET; + return "*"; +} + +bool lv_textarea_get_one_line(const lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_textarea_t * ta = (lv_textarea_t *)obj; + return ta->one_line == 1U; +} + +const char * lv_textarea_get_accepted_chars(lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_textarea_t * ta = (lv_textarea_t *)obj; + + return ta->accepted_chars; +} + +uint32_t lv_textarea_get_max_length(lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_textarea_t * ta = (lv_textarea_t *)obj; + return ta->max_length; +} + +bool lv_textarea_text_is_selected(const lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + +#if LV_LABEL_TEXT_SELECTION + lv_textarea_t * ta = (lv_textarea_t *)obj; + + if((lv_label_get_text_selection_start(ta->label) != LV_DRAW_LABEL_NO_TXT_SEL || + lv_label_get_text_selection_end(ta->label) != LV_DRAW_LABEL_NO_TXT_SEL)) { + return true; + } + else { + return false; + } +#else + LV_UNUSED(obj); /*Unused*/ + return false; +#endif +} + +bool lv_textarea_get_text_selection(lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + +#if LV_LABEL_TEXT_SELECTION + lv_textarea_t * ta = (lv_textarea_t *)obj; + return ta->text_sel_en; +#else + LV_UNUSED(obj); /*Unused*/ + return false; +#endif +} + +uint16_t lv_textarea_get_password_show_time(lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_textarea_t * ta = (lv_textarea_t *)obj; + + return ta->pwd_show_time; +} + +/*===================== + * Other functions + *====================*/ + +void lv_textarea_clear_selection(lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + +#if LV_LABEL_TEXT_SELECTION + lv_textarea_t * ta = (lv_textarea_t *)obj; + + if(lv_label_get_text_selection_start(ta->label) != LV_DRAW_LABEL_NO_TXT_SEL || + lv_label_get_text_selection_end(ta->label) != LV_DRAW_LABEL_NO_TXT_SEL) { + lv_label_set_text_sel_start(ta->label, LV_DRAW_LABEL_NO_TXT_SEL); + lv_label_set_text_sel_end(ta->label, LV_DRAW_LABEL_NO_TXT_SEL); + } +#else + LV_UNUSED(obj); /*Unused*/ +#endif +} + +void lv_textarea_cursor_right(lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + uint32_t cp = lv_textarea_get_cursor_pos(obj); + cp++; + lv_textarea_set_cursor_pos(obj, cp); +} + +void lv_textarea_cursor_left(lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + uint32_t cp = lv_textarea_get_cursor_pos(obj); + if(cp > 0) { + cp--; + lv_textarea_set_cursor_pos(obj, cp); + } +} + +void lv_textarea_cursor_down(lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_textarea_t * ta = (lv_textarea_t *)obj; + lv_point_t pos; + + /*Get the position of the current letter*/ + lv_label_get_letter_pos(ta->label, lv_textarea_get_cursor_pos(obj), &pos); + + /*Increment the y with one line and keep the valid x*/ + + lv_coord_t line_space = lv_obj_get_style_text_line_space(obj, LV_PART_MAIN); + const lv_font_t * font = lv_obj_get_style_text_font(obj, LV_PART_MAIN); + lv_coord_t font_h = lv_font_get_line_height(font); + pos.y += font_h + line_space + 1; + pos.x = ta->cursor.valid_x; + + /*Do not go below the last line*/ + if(pos.y < lv_obj_get_height(ta->label)) { + /*Get the letter index on the new cursor position and set it*/ + uint32_t new_cur_pos = lv_label_get_letter_on(ta->label, &pos); + + lv_coord_t cur_valid_x_tmp = ta->cursor.valid_x; /*Cursor position set overwrites the valid position*/ + lv_textarea_set_cursor_pos(obj, new_cur_pos); + ta->cursor.valid_x = cur_valid_x_tmp; + } +} + +void lv_textarea_cursor_up(lv_obj_t * obj) +{ + LV_ASSERT_OBJ(obj, MY_CLASS); + + lv_textarea_t * ta = (lv_textarea_t *)obj; + lv_point_t pos; + + /*Get the position of the current letter*/ + lv_label_get_letter_pos(ta->label, lv_textarea_get_cursor_pos(obj), &pos); + + /*Decrement the y with one line and keep the valid x*/ + lv_coord_t line_space = lv_obj_get_style_text_line_space(obj, LV_PART_MAIN); + const lv_font_t * font = lv_obj_get_style_text_font(obj, LV_PART_MAIN); + lv_coord_t font_h = lv_font_get_line_height(font); + pos.y -= font_h + line_space - 1; + pos.x = ta->cursor.valid_x; + + /*Get the letter index on the new cursor position and set it*/ + uint32_t new_cur_pos = lv_label_get_letter_on(ta->label, &pos); + lv_coord_t cur_valid_x_tmp = ta->cursor.valid_x; /*Cursor position set overwrites the valid position*/ + lv_textarea_set_cursor_pos(obj, new_cur_pos); + ta->cursor.valid_x = cur_valid_x_tmp; +} + +/********************** + * STATIC FUNCTIONS + **********************/ + +static void lv_textarea_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj) +{ + LV_UNUSED(class_p); + LV_TRACE_OBJ_CREATE("begin"); + + lv_textarea_t * ta = (lv_textarea_t *)obj; + + ta->pwd_mode = 0; + ta->pwd_tmp = NULL; + ta->pwd_bullet = NULL; + ta->pwd_show_time = LV_TEXTAREA_DEF_PWD_SHOW_TIME; + ta->accepted_chars = NULL; + ta->max_length = 0; + ta->cursor.show = 1; + /*It will be set to zero later (with zero value lv_textarea_set_cursor_pos(obj, 0); wouldn't do anything as there is no difference)*/ + ta->cursor.pos = 1; + ta->cursor.click_pos = 1; + ta->cursor.valid_x = 0; + ta->one_line = 0; +#if LV_LABEL_TEXT_SELECTION + ta->text_sel_en = 0; +#endif + ta->label = NULL; + ta->placeholder_txt = NULL; + + ta->label = lv_label_create(obj); + lv_obj_set_width(ta->label, lv_pct(100)); + lv_label_set_text(ta->label, ""); + lv_obj_add_event_cb(ta->label, label_event_cb, LV_EVENT_ALL, NULL); + lv_obj_add_flag(obj, LV_OBJ_FLAG_SCROLL_ON_FOCUS); + lv_textarea_set_cursor_pos(obj, 0); + + start_cursor_blink(obj); + + LV_TRACE_OBJ_CREATE("finished"); +} + +static void lv_textarea_destructor(const lv_obj_class_t * class_p, lv_obj_t * obj) +{ + LV_UNUSED(class_p); + + lv_textarea_t * ta = (lv_textarea_t *)obj; + if(ta->pwd_tmp != NULL) { + lv_mem_free(ta->pwd_tmp); + ta->pwd_tmp = NULL; + } + if(ta->pwd_bullet != NULL) { + lv_mem_free(ta->pwd_bullet); + ta->pwd_bullet = NULL; + } + if(ta->placeholder_txt != NULL) { + lv_mem_free(ta->placeholder_txt); + ta->placeholder_txt = NULL; + } +} + +static void lv_textarea_event(const lv_obj_class_t * class_p, lv_event_t * e) +{ + LV_UNUSED(class_p); + + lv_res_t res; + /*Call the ancestor's event handler*/ + res = lv_obj_event_base(MY_CLASS, e); + if(res != LV_RES_OK) return; + + lv_event_code_t code = lv_event_get_code(e); + lv_obj_t * obj = lv_event_get_target(e); + + if(code == LV_EVENT_FOCUSED) { + start_cursor_blink(obj); + } + else if(code == LV_EVENT_KEY) { + uint32_t c = *((uint32_t *)lv_event_get_param(e)); /*uint32_t because can be UTF-8*/ + if(c == LV_KEY_RIGHT) + lv_textarea_cursor_right(obj); + else if(c == LV_KEY_LEFT) + lv_textarea_cursor_left(obj); + else if(c == LV_KEY_UP) + lv_textarea_cursor_up(obj); + else if(c == LV_KEY_DOWN) + lv_textarea_cursor_down(obj); + else if(c == LV_KEY_BACKSPACE) + lv_textarea_del_char(obj); + else if(c == LV_KEY_DEL) + lv_textarea_del_char_forward(obj); + else if(c == LV_KEY_HOME) + lv_textarea_set_cursor_pos(obj, 0); + else if(c == LV_KEY_END) + lv_textarea_set_cursor_pos(obj, LV_TEXTAREA_CURSOR_LAST); + else if(c == LV_KEY_ENTER && lv_textarea_get_one_line(obj)) + lv_event_send(obj, LV_EVENT_READY, NULL); + else { + lv_textarea_add_char(obj, c); + } + } + else if(code == LV_EVENT_PRESSED || code == LV_EVENT_PRESSING || code == LV_EVENT_PRESS_LOST || + code == LV_EVENT_RELEASED) { + update_cursor_position_on_click(e); + } + else if(code == LV_EVENT_DRAW_MAIN) { + draw_placeholder(e); + } + else if(code == LV_EVENT_DRAW_POST) { + draw_cursor(e); + } +} + +static void label_event_cb(lv_event_t * e) +{ + lv_event_code_t code = lv_event_get_code(e); + lv_obj_t * label = lv_event_get_target(e); + lv_obj_t * ta = lv_obj_get_parent(label); + + if(code == LV_EVENT_STYLE_CHANGED || code == LV_EVENT_SIZE_CHANGED) { + lv_label_set_text(label, NULL); + refr_cursor_area(ta); + start_cursor_blink(ta); + } +} + + + +/** + * Called to blink the cursor + * @param ta pointer to a text area + * @param hide 1: hide the cursor, 0: show it + */ +static void cursor_blink_anim_cb(void * obj, int32_t show) +{ + lv_textarea_t * ta = (lv_textarea_t *)obj; + if(show != ta->cursor.show) { + ta->cursor.show = show ? 1U : 0U; + lv_area_t area_tmp; + lv_area_copy(&area_tmp, &ta->cursor.area); + area_tmp.x1 += ta->label->coords.x1; + area_tmp.y1 += ta->label->coords.y1; + area_tmp.x2 += ta->label->coords.x1; + area_tmp.y2 += ta->label->coords.y1; + lv_obj_invalidate_area(obj, &area_tmp); + } +} + +/** + * Dummy function to animate char hiding in pwd mode. + * Does nothing, but a function is required in car hiding anim. + * (pwd_char_hider callback do the real job) + * @param ta unused + * @param x unused + */ +static void pwd_char_hider_anim(void * obj, int32_t x) +{ + LV_UNUSED(obj); + LV_UNUSED(x); +} + +/** + * Call when an animation is ready to convert all characters to '*' + * @param a pointer to the animation + */ +static void pwd_char_hider_anim_ready(lv_anim_t * a) +{ + lv_obj_t * obj = a->var; + pwd_char_hider(obj); +} + +/** + * Hide all characters (convert them to '*') + * @param ta pointer to text area object + */ +static void pwd_char_hider(lv_obj_t * obj) +{ + lv_textarea_t * ta = (lv_textarea_t *)obj; + if(ta->pwd_mode == 0) { + return; + } + + /* When ta->label is empty we get 0 back */ + char * txt = lv_label_get_text(ta->label); + uint32_t enc_len = _lv_txt_get_encoded_length(txt); + if(enc_len == 0) return; + + const char * bullet = lv_textarea_get_password_bullet(obj); + const size_t bullet_len = strlen(bullet); + char * txt_tmp = lv_mem_buf_get(enc_len * bullet_len + 1); + + uint32_t i; + for(i = 0; i < enc_len; i++) { + lv_memcpy(&txt_tmp[i * bullet_len], bullet, bullet_len); + } + txt_tmp[i * bullet_len] = '\0'; + + lv_label_set_text(ta->label, txt_tmp); + lv_mem_buf_release(txt_tmp); + + refr_cursor_area(obj); +} + +/** + * Test a unicode character if it is accepted or not. Checks max length and accepted char list. + * @param ta pointer to a test area object + * @param c a unicode character + * @return true: accepted; false: rejected + */ +static bool char_is_accepted(lv_obj_t * obj, uint32_t c) +{ + lv_textarea_t * ta = (lv_textarea_t *)obj; + + /*Too many characters?*/ + if(ta->max_length > 0 && _lv_txt_get_encoded_length(lv_textarea_get_text(obj)) >= ta->max_length) { + return false; + } + + if(ta->accepted_chars == NULL || ta->accepted_chars[0] == '\0') return true; + /*Accepted character?*/ + uint32_t i = 0; + + while(ta->accepted_chars[i] != '\0') { + uint32_t a = _lv_txt_encoded_next(ta->accepted_chars, &i); + if(a == c) return true; /*Accepted*/ + } + + return false; /*The character wasn't in the list*/ +} + +static void start_cursor_blink(lv_obj_t * obj) +{ + lv_textarea_t * ta = (lv_textarea_t *)obj; + uint32_t blink_time = lv_obj_get_style_anim_time(obj, LV_PART_CURSOR); + if(blink_time == 0) { + lv_anim_del(obj, cursor_blink_anim_cb); + ta->cursor.show = 1; + } + else { + lv_anim_t a; + lv_anim_init(&a); + lv_anim_set_var(&a, ta); + lv_anim_set_exec_cb(&a, cursor_blink_anim_cb); + lv_anim_set_time(&a, blink_time); + lv_anim_set_playback_time(&a, blink_time); + lv_anim_set_values(&a, 1, 0); + lv_anim_set_path_cb(&a, lv_anim_path_step); + lv_anim_set_repeat_count(&a, LV_ANIM_REPEAT_INFINITE); + lv_anim_start(&a); + } +} + +static void refr_cursor_area(lv_obj_t * obj) +{ + lv_textarea_t * ta = (lv_textarea_t *)obj; + + const lv_font_t * font = lv_obj_get_style_text_font(obj, LV_PART_MAIN); + lv_coord_t line_space = lv_obj_get_style_text_line_space(obj, LV_PART_MAIN); + + uint32_t cur_pos = lv_textarea_get_cursor_pos(obj); + const char * txt = lv_label_get_text(ta->label); + + uint32_t byte_pos = _lv_txt_encoded_get_byte_id(txt, cur_pos); + uint32_t letter = _lv_txt_encoded_next(&txt[byte_pos], NULL); + + /* Letter height and width */ + const lv_coord_t letter_h = lv_font_get_line_height(font); + /*Set letter_w (set not 0 on non printable but valid chars)*/ + uint32_t letter_space = letter; + if(is_valid_but_non_printable_char(letter)) { + letter_space = ' '; + } + lv_coord_t letter_w = lv_font_get_glyph_width(font, letter_space, IGNORE_KERNING); + + lv_point_t letter_pos; + lv_label_get_letter_pos(ta->label, cur_pos, &letter_pos); + + lv_text_align_t align = lv_obj_calculate_style_text_align(ta->label, LV_PART_MAIN, lv_label_get_text(ta->label)); + + /*If the cursor is out of the text (most right) draw it to the next line*/ + if(((letter_pos.x + ta->label->coords.x1) + letter_w > ta->label->coords.x2) && + (ta->one_line == 0 && align != LV_TEXT_ALIGN_RIGHT)) { + + letter_pos.x = 0; + letter_pos.y += letter_h + line_space; + + if(letter != '\0') { + byte_pos += _lv_txt_encoded_size(&txt[byte_pos]); + letter = _lv_txt_encoded_next(&txt[byte_pos], NULL); + } + + uint32_t tmp = letter; + if(is_valid_but_non_printable_char(letter)) { + tmp = ' '; + } + letter_w = lv_font_get_glyph_width(font, tmp, IGNORE_KERNING); + } + + /*Save the byte position. It is required to draw `LV_CURSOR_BLOCK`*/ + ta->cursor.txt_byte_pos = byte_pos; + + /*Calculate the cursor according to its type*/ + lv_coord_t border_width = lv_obj_get_style_border_width(obj, LV_PART_CURSOR); + lv_coord_t top = lv_obj_get_style_pad_top(obj, LV_PART_CURSOR) + border_width; + lv_coord_t bottom = lv_obj_get_style_pad_bottom(obj, LV_PART_CURSOR) + border_width; + lv_coord_t left = lv_obj_get_style_pad_left(obj, LV_PART_CURSOR) + border_width; + lv_coord_t right = lv_obj_get_style_pad_right(obj, LV_PART_CURSOR) + border_width; + + lv_area_t cur_area; + cur_area.x1 = letter_pos.x - left; + cur_area.y1 = letter_pos.y - top; + cur_area.x2 = letter_pos.x + right + letter_w - 1; + cur_area.y2 = letter_pos.y + bottom + letter_h - 1; + + /*Save the new area*/ + lv_area_t area_tmp; + lv_area_copy(&area_tmp, &ta->cursor.area); + area_tmp.x1 += ta->label->coords.x1; + area_tmp.y1 += ta->label->coords.y1; + area_tmp.x2 += ta->label->coords.x1; + area_tmp.y2 += ta->label->coords.y1; + lv_obj_invalidate_area(obj, &area_tmp); + + lv_area_copy(&ta->cursor.area, &cur_area); + + lv_area_copy(&area_tmp, &ta->cursor.area); + area_tmp.x1 += ta->label->coords.x1; + area_tmp.y1 += ta->label->coords.y1; + area_tmp.x2 += ta->label->coords.x1; + area_tmp.y2 += ta->label->coords.y1; + lv_obj_invalidate_area(obj, &area_tmp); +} + +static void update_cursor_position_on_click(lv_event_t * e) +{ + lv_indev_t * click_source = lv_indev_get_act(); + if(click_source == NULL) return; + + lv_obj_t * obj = lv_event_get_target(e); + lv_textarea_t * ta = (lv_textarea_t *)obj; + if(ta->cursor.click_pos == 0) return; + + if(lv_indev_get_type(click_source) == LV_INDEV_TYPE_KEYPAD || + lv_indev_get_type(click_source) == LV_INDEV_TYPE_ENCODER) { + return; + } + + lv_area_t label_coords; + lv_obj_get_coords(ta->label, &label_coords); + + lv_point_t point_act, vect_act; + lv_indev_get_point(click_source, &point_act); + lv_indev_get_vect(click_source, &vect_act); + + if(point_act.x < 0 || point_act.y < 0) return; /*Ignore event from keypad*/ + lv_point_t rel_pos; + rel_pos.x = point_act.x - label_coords.x1; + rel_pos.y = point_act.y - label_coords.y1; + + const lv_event_code_t code = lv_event_get_code(e); + + lv_coord_t label_width = lv_obj_get_width(ta->label); + uint16_t char_id_at_click = 0; + +#if LV_LABEL_TEXT_SELECTION + lv_label_t * label_data = (lv_label_t *)ta->label; + bool click_outside_label = false; + /*Check if the click happened on the left side of the area outside the label*/ + if(rel_pos.x < 0) { + char_id_at_click = 0; + click_outside_label = true; + } + /*Check if the click happened on the right side of the area outside the label*/ + else if(rel_pos.x >= label_width) { + char_id_at_click = LV_TEXTAREA_CURSOR_LAST; + click_outside_label = true; + } + else { + char_id_at_click = lv_label_get_letter_on(ta->label, &rel_pos); + click_outside_label = !lv_label_is_char_under_pos(ta->label, &rel_pos); + } + + if(ta->text_sel_en) { + if(!ta->text_sel_in_prog && !click_outside_label && code == LV_EVENT_PRESSED) { + /*Input device just went down. Store the selection start position*/ + ta->sel_start = char_id_at_click; + ta->sel_end = LV_LABEL_TEXT_SELECTION_OFF; + ta->text_sel_in_prog = 1; + lv_obj_clear_flag(obj, LV_OBJ_FLAG_SCROLL_CHAIN); + } + else if(ta->text_sel_in_prog && code == LV_EVENT_PRESSING) { + /*Input device may be moving. Store the end position*/ + ta->sel_end = char_id_at_click; + } + else if(ta->text_sel_in_prog && (code == LV_EVENT_PRESS_LOST || code == LV_EVENT_RELEASED)) { + /*Input device is released. Check if anything was selected.*/ + lv_obj_add_flag(obj, LV_OBJ_FLAG_SCROLL_CHAIN); + } + } + + if(ta->text_sel_in_prog || code == LV_EVENT_PRESSED) lv_textarea_set_cursor_pos(obj, char_id_at_click); + + if(ta->text_sel_in_prog) { + /*If the selected area has changed then update the real values and*/ + + /*Invalidate the text area.*/ + if(ta->sel_start > ta->sel_end) { + if(label_data->sel_start != ta->sel_end || label_data->sel_end != ta->sel_start) { + label_data->sel_start = ta->sel_end; + label_data->sel_end = ta->sel_start; + lv_obj_invalidate(obj); + } + } + else if(ta->sel_start < ta->sel_end) { + if(label_data->sel_start != ta->sel_start || label_data->sel_end != ta->sel_end) { + label_data->sel_start = ta->sel_start; + label_data->sel_end = ta->sel_end; + lv_obj_invalidate(obj); + } + } + else { + if(label_data->sel_start != LV_DRAW_LABEL_NO_TXT_SEL || label_data->sel_end != LV_DRAW_LABEL_NO_TXT_SEL) { + label_data->sel_start = LV_DRAW_LABEL_NO_TXT_SEL; + label_data->sel_end = LV_DRAW_LABEL_NO_TXT_SEL; + lv_obj_invalidate(obj); + } + } + /*Finish selection if necessary*/ + if(code == LV_EVENT_PRESS_LOST || code == LV_EVENT_RELEASED) { + ta->text_sel_in_prog = 0; + } + } +#else + /*Check if the click happened on the left side of the area outside the label*/ + if(rel_pos.x < 0) { + char_id_at_click = 0; + } + /*Check if the click happened on the right side of the area outside the label*/ + else if(rel_pos.x >= label_width) { + char_id_at_click = LV_TEXTAREA_CURSOR_LAST; + } + else { + char_id_at_click = lv_label_get_letter_on(ta->label, &rel_pos); + } + + if(code == LV_EVENT_PRESSED) lv_textarea_set_cursor_pos(obj, char_id_at_click); +#endif +} + +/* Returns LV_RES_OK when no operation were performed + * Returns LV_RES_INV when a user defined text was inserted */ +static lv_res_t insert_handler(lv_obj_t * obj, const char * txt) +{ + ta_insert_replace = NULL; + lv_event_send(obj, LV_EVENT_INSERT, (char *)txt); + + /* Drop txt if insert replace is set to '\0' */ + if(ta_insert_replace && ta_insert_replace[0] == '\0') + return LV_RES_INV; + + if(ta_insert_replace) { + /*Add the replaced text directly it's different from the original*/ + if(strcmp(ta_insert_replace, txt)) { + lv_textarea_add_text(obj, ta_insert_replace); + return LV_RES_INV; + } + } + + return LV_RES_OK; +} + +static void draw_placeholder(lv_event_t * e) +{ + lv_obj_t * obj = lv_event_get_target(e); + lv_textarea_t * ta = (lv_textarea_t *)obj; + lv_draw_ctx_t * draw_ctx = lv_event_get_draw_ctx(e); + const char * txt = lv_label_get_text(ta->label); + + /*Draw the place holder*/ + if(txt[0] == '\0' && ta->placeholder_txt && ta->placeholder_txt[0] != 0) { + lv_draw_label_dsc_t ph_dsc; + lv_draw_label_dsc_init(&ph_dsc); + lv_obj_init_draw_label_dsc(obj, LV_PART_TEXTAREA_PLACEHOLDER, &ph_dsc); + + if(ta->one_line) ph_dsc.flag |= LV_TEXT_FLAG_EXPAND; + + lv_coord_t left = lv_obj_get_style_pad_left(obj, LV_PART_MAIN); + lv_coord_t top = lv_obj_get_style_pad_top(obj, LV_PART_MAIN); + lv_coord_t border_width = lv_obj_get_style_border_width(obj, LV_PART_MAIN); + lv_area_t ph_coords; + lv_area_copy(&ph_coords, &obj->coords); + lv_area_move(&ph_coords, left + border_width, top + border_width); + lv_draw_label(draw_ctx, &ph_dsc, &ph_coords, ta->placeholder_txt, NULL); + } +} + +static void draw_cursor(lv_event_t * e) +{ + lv_obj_t * obj = lv_event_get_target(e); + lv_textarea_t * ta = (lv_textarea_t *)obj; + lv_draw_ctx_t * draw_ctx = lv_event_get_draw_ctx(e); + const char * txt = lv_label_get_text(ta->label); + + if(ta->cursor.show == 0) return; + + lv_draw_rect_dsc_t cur_dsc; + lv_draw_rect_dsc_init(&cur_dsc); + lv_obj_init_draw_rect_dsc(obj, LV_PART_CURSOR, &cur_dsc); + + /*Draw he cursor according to the type*/ + lv_area_t cur_area; + lv_area_copy(&cur_area, &ta->cursor.area); + + + cur_area.x1 += ta->label->coords.x1; + cur_area.y1 += ta->label->coords.y1; + cur_area.x2 += ta->label->coords.x1; + cur_area.y2 += ta->label->coords.y1; + + lv_draw_rect(draw_ctx, &cur_dsc, &cur_area); + + lv_coord_t border_width = lv_obj_get_style_border_width(obj, LV_PART_CURSOR); + lv_coord_t left = lv_obj_get_style_pad_left(obj, LV_PART_CURSOR) + border_width; + lv_coord_t top = lv_obj_get_style_pad_top(obj, LV_PART_CURSOR) + border_width; + char letter_buf[8] = {0}; + lv_memcpy(letter_buf, &txt[ta->cursor.txt_byte_pos], _lv_txt_encoded_size(&txt[ta->cursor.txt_byte_pos])); + + cur_area.x1 += left; + cur_area.y1 += top; + + /*Draw the letter over the cursor only if + *the cursor has background or the letter has different color than the original. + *Else the original letter is drawn twice which makes it look bolder*/ + lv_color_t label_color = lv_obj_get_style_text_color(ta->label, 0); + lv_draw_label_dsc_t cur_label_dsc; + lv_draw_label_dsc_init(&cur_label_dsc); + lv_obj_init_draw_label_dsc(obj, LV_PART_CURSOR, &cur_label_dsc); + if(cur_dsc.bg_opa > LV_OPA_MIN || cur_label_dsc.color.full != label_color.full) { + lv_draw_label(draw_ctx, &cur_label_dsc, &cur_area, letter_buf, NULL); + } +} + +static void auto_hide_characters(lv_obj_t * obj) +{ + lv_textarea_t * ta = (lv_textarea_t *) obj; + + if(ta->pwd_show_time == 0) { + pwd_char_hider(obj); + } + else { + lv_anim_t a; + lv_anim_init(&a); + lv_anim_set_var(&a, ta); + lv_anim_set_exec_cb(&a, pwd_char_hider_anim); + lv_anim_set_time(&a, ta->pwd_show_time); + lv_anim_set_values(&a, 0, 1); + lv_anim_set_path_cb(&a, lv_anim_path_step); + lv_anim_set_ready_cb(&a, pwd_char_hider_anim_ready); + lv_anim_start(&a); + } +} + +static inline bool is_valid_but_non_printable_char(const uint32_t letter) +{ + if(letter == '\0' || letter == '\n' || letter == '\r') { + return true; + } + + return false; +} + +#endif diff --git a/lib/lvgl/src/widgets/lv_textarea.h b/lib/lvgl/src/widgets/lv_textarea.h new file mode 100644 index 00000000..4b3289b4 --- /dev/null +++ b/lib/lvgl/src/widgets/lv_textarea.h @@ -0,0 +1,358 @@ +/** + * @file lv_textarea.h + * + */ + +#ifndef LV_TEXTAREA_H +#define LV_TEXTAREA_H + +#ifdef __cplusplus +extern "C" { +#endif + +/********************* + * INCLUDES + *********************/ +#include "../lv_conf_internal.h" + +#if LV_USE_TEXTAREA != 0 + +/*Testing of dependencies*/ +#if LV_USE_LABEL == 0 +#error "lv_ta: lv_label is required. Enable it in lv_conf.h (LV_USE_LABEL 1)" +#endif + +#include "../core/lv_obj.h" +#include "lv_label.h" + +/********************* + * DEFINES + *********************/ +#define LV_TEXTAREA_CURSOR_LAST (0x7FFF) /*Put the cursor after the last character*/ + +LV_EXPORT_CONST_INT(LV_TEXTAREA_CURSOR_LAST); + +/********************** + * TYPEDEFS + **********************/ + +/*Data of text area*/ +typedef struct { + lv_obj_t obj; + lv_obj_t * label; /*Label of the text area*/ + char * placeholder_txt; /*Place holder label. only visible if text is an empty string*/ + char * pwd_tmp; /*Used to store the original text in password mode*/ + char * pwd_bullet; /*Replacement characters displayed in password mode*/ + const char * accepted_chars; /*Only these characters will be accepted. NULL: accept all*/ + uint32_t max_length; /*The max. number of characters. 0: no limit*/ + uint16_t pwd_show_time; /*Time to show characters in password mode before change them to '*'*/ + struct { + lv_coord_t valid_x; /*Used when stepping up/down to a shorter line. + *(Used by the library)*/ + uint32_t pos; /*The current cursor position + *(0: before 1st letter; 1: before 2nd letter ...)*/ + lv_area_t area; /*Cursor area relative to the Text Area*/ + uint32_t txt_byte_pos; /*Byte index of the letter after (on) the cursor*/ + uint8_t show : 1; /*Cursor is visible now or not (Handled by the library)*/ + uint8_t click_pos : 1; /*1: Enable positioning the cursor by clicking the text area*/ + } cursor; +#if LV_LABEL_TEXT_SELECTION + uint32_t sel_start; /*Temporary values for text selection*/ + uint32_t sel_end; + uint8_t text_sel_in_prog : 1; /*User is in process of selecting*/ + uint8_t text_sel_en : 1; /*Text can be selected on this text area*/ +#endif + uint8_t pwd_mode : 1; /*Replace characters with '*'*/ + uint8_t one_line : 1; /*One line mode (ignore line breaks)*/ +} lv_textarea_t; + +extern const lv_obj_class_t lv_textarea_class; + +enum { + LV_PART_TEXTAREA_PLACEHOLDER = LV_PART_CUSTOM_FIRST, +}; + +/********************** + * GLOBAL PROTOTYPES + **********************/ + +/** + * Create a text area object + * @param parent pointer to an object, it will be the parent of the new text area + * @return pointer to the created text area + */ +lv_obj_t * lv_textarea_create(lv_obj_t * parent); + +/*====================== + * Add/remove functions + *=====================*/ + +/** + * Insert a character to the current cursor position. + * To add a wide char, e.g. 'Á' use `_lv_txt_encoded_conv_wc('Á')` + * @param obj pointer to a text area object + * @param c a character (e.g. 'a') + */ +void lv_textarea_add_char(lv_obj_t * obj, uint32_t c); + +/** + * Insert a text to the current cursor position + * @param obj pointer to a text area object + * @param txt a '\0' terminated string to insert + */ +void lv_textarea_add_text(lv_obj_t * obj, const char * txt); + +/** + * Delete a the left character from the current cursor position + * @param obj pointer to a text area object + */ +void lv_textarea_del_char(lv_obj_t * obj); + +/** + * Delete the right character from the current cursor position + * @param obj pointer to a text area object + */ +void lv_textarea_del_char_forward(lv_obj_t * obj); + +/*===================== + * Setter functions + *====================*/ + +/** + * Set the text of a text area + * @param obj pointer to a text area object + * @param txt pointer to the text + */ +void lv_textarea_set_text(lv_obj_t * obj, const char * txt); + +/** + * Set the placeholder text of a text area + * @param obj pointer to a text area object + * @param txt pointer to the text + */ +void lv_textarea_set_placeholder_text(lv_obj_t * obj, const char * txt); + +/** + * Set the cursor position + * @param obj pointer to a text area object + * @param pos the new cursor position in character index + * < 0 : index from the end of the text + * LV_TEXTAREA_CURSOR_LAST: go after the last character + */ +void lv_textarea_set_cursor_pos(lv_obj_t * obj, int32_t pos); + +/** + * Enable/Disable the positioning of the cursor by clicking the text on the text area. + * @param obj pointer to a text area object + * @param en true: enable click positions; false: disable + */ +void lv_textarea_set_cursor_click_pos(lv_obj_t * obj, bool en); + +/** + * Enable/Disable password mode + * @param obj pointer to a text area object + * @param en true: enable, false: disable + */ +void lv_textarea_set_password_mode(lv_obj_t * obj, bool en); + +/** + * Set the replacement characters to show in password mode + * @param obj pointer to a text area object + * @param bullet pointer to the replacement text + */ +void lv_textarea_set_password_bullet(lv_obj_t * obj, const char * bullet); + +/** + * Configure the text area to one line or back to normal + * @param obj pointer to a text area object + * @param en true: one line, false: normal + */ +void lv_textarea_set_one_line(lv_obj_t * obj, bool en); + +/** + * Set a list of characters. Only these characters will be accepted by the text area + * @param obj pointer to a text area object + * @param list list of characters. Only the pointer is saved. E.g. "+-.,0123456789" + */ +void lv_textarea_set_accepted_chars(lv_obj_t * obj, const char * list); + +/** + * Set max length of a Text Area. + * @param obj pointer to a text area object + * @param num the maximal number of characters can be added (`lv_textarea_set_text` ignores it) + */ +void lv_textarea_set_max_length(lv_obj_t * obj, uint32_t num); + +/** + * In `LV_EVENT_INSERT` the text which planned to be inserted can be replaced by an other text. + * It can be used to add automatic formatting to the text area. + * @param obj pointer to a text area object + * @param txt pointer to a new string to insert. If `""` no text will be added. + * The variable must be live after the `event_cb` exists. (Should be `global` or `static`) + */ +void lv_textarea_set_insert_replace(lv_obj_t * obj, const char * txt); + +/** + * Enable/disable selection mode. + * @param obj pointer to a text area object + * @param en true or false to enable/disable selection mode + */ +void lv_textarea_set_text_selection(lv_obj_t * obj, bool en); + +/** + * Set how long show the password before changing it to '*' + * @param obj pointer to a text area object + * @param time show time in milliseconds. 0: hide immediately. + */ +void lv_textarea_set_password_show_time(lv_obj_t * obj, uint16_t time); + +/** + * Deprecated: use the normal text_align style property instead + * Set the label's alignment. + * It sets where the label is aligned (in one line mode it can be smaller than the text area) + * and how the lines of the area align in case of multiline text area + * @param obj pointer to a text area object + * @param align the align mode from ::lv_text_align_t + */ +void lv_textarea_set_align(lv_obj_t * obj, lv_text_align_t align); + +/*===================== + * Getter functions + *====================*/ + +/** + * Get the text of a text area. In password mode it gives the real text (not '*'s). + * @param obj pointer to a text area object + * @return pointer to the text + */ +const char * lv_textarea_get_text(const lv_obj_t * obj); + +/** + * Get the placeholder text of a text area + * @param obj pointer to a text area object + * @return pointer to the text + */ +const char * lv_textarea_get_placeholder_text(lv_obj_t * obj); + +/** + * Get the label of a text area + * @param obj pointer to a text area object + * @return pointer to the label object + */ +lv_obj_t * lv_textarea_get_label(const lv_obj_t * obj); + +/** + * Get the current cursor position in character index + * @param obj pointer to a text area object + * @return the cursor position + */ +uint32_t lv_textarea_get_cursor_pos(const lv_obj_t * obj); + +/** + * Get whether the cursor click positioning is enabled or not. + * @param obj pointer to a text area object + * @return true: enable click positions; false: disable + */ +bool lv_textarea_get_cursor_click_pos(lv_obj_t * obj); + +/** + * Get the password mode attribute + * @param obj pointer to a text area object + * @return true: password mode is enabled, false: disabled + */ +bool lv_textarea_get_password_mode(const lv_obj_t * obj); + +/** + * Get the replacement characters to show in password mode + * @param obj pointer to a text area object + * @return pointer to the replacement text + */ +const char * lv_textarea_get_password_bullet(lv_obj_t * obj); + +/** + * Get the one line configuration attribute + * @param obj pointer to a text area object + * @return true: one line configuration is enabled, false: disabled + */ +bool lv_textarea_get_one_line(const lv_obj_t * obj); + +/** + * Get a list of accepted characters. + * @param obj pointer to a text area object + * @return list of accented characters. + */ +const char * lv_textarea_get_accepted_chars(lv_obj_t * obj); + +/** + * Get max length of a Text Area. + * @param obj pointer to a text area object + * @return the maximal number of characters to be add + */ +uint32_t lv_textarea_get_max_length(lv_obj_t * obj); + +/** + * Find whether text is selected or not. + * @param obj pointer to a text area object + * @return whether text is selected or not + */ +bool lv_textarea_text_is_selected(const lv_obj_t * obj); + +/** + * Find whether selection mode is enabled. + * @param obj pointer to a text area object + * @return true: selection mode is enabled, false: disabled + */ +bool lv_textarea_get_text_selection(lv_obj_t * obj); + +/** + * Set how long show the password before changing it to '*' + * @param obj pointer to a text area object + * @return show time in milliseconds. 0: hide immediately. + */ +uint16_t lv_textarea_get_password_show_time(lv_obj_t * obj); + +/*===================== + * Other functions + *====================*/ + +/** + * Clear the selection on the text area. + * @param obj pointer to a text area object + */ +void lv_textarea_clear_selection(lv_obj_t * obj); + +/** + * Move the cursor one character right + * @param obj pointer to a text area object + */ +void lv_textarea_cursor_right(lv_obj_t * obj); + +/** + * Move the cursor one character left + * @param obj pointer to a text area object + */ +void lv_textarea_cursor_left(lv_obj_t * obj); + +/** + * Move the cursor one line down + * @param obj pointer to a text area object + */ +void lv_textarea_cursor_down(lv_obj_t * obj); + +/** + * Move the cursor one line up + * @param obj pointer to a text area object + */ +void lv_textarea_cursor_up(lv_obj_t * obj); + +/********************** + * MACROS + **********************/ + +#endif /*LV_USE_TEXTAREA_H*/ + +#ifdef __cplusplus +} /*extern "C"*/ +#endif + +#endif /*LV_TEXTAREA_H*/ diff --git a/lib/lvgl/src/widgets/lv_widgets.mk b/lib/lvgl/src/widgets/lv_widgets.mk new file mode 100644 index 00000000..4e62dc58 --- /dev/null +++ b/lib/lvgl/src/widgets/lv_widgets.mk @@ -0,0 +1,20 @@ +CSRCS += lv_arc.c +CSRCS += lv_bar.c +CSRCS += lv_btn.c +CSRCS += lv_btnmatrix.c +CSRCS += lv_canvas.c +CSRCS += lv_checkbox.c +CSRCS += lv_dropdown.c +CSRCS += lv_img.c +CSRCS += lv_label.c +CSRCS += lv_line.c +CSRCS += lv_roller.c +CSRCS += lv_slider.c +CSRCS += lv_switch.c +CSRCS += lv_table.c +CSRCS += lv_textarea.c + +DEPPATH += --dep-path $(LVGL_DIR)/$(LVGL_DIR_NAME)/src/widgets +VPATH += :$(LVGL_DIR)/$(LVGL_DIR_NAME)/src/widgets + +CFLAGS += "-I$(LVGL_DIR)/$(LVGL_DIR_NAME)/src/widgets" |