diff options
Diffstat (limited to 'lib/lvgl/src/widgets/lv_line.c')
| m--------- | lib/lvgl | 0 | ||||
| -rw-r--r-- | lib/lvgl/src/widgets/lv_line.c | 201 |
2 files changed, 201 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_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 |