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/**
* @file lv_calendar_header_arrow.c
*
*/
/*********************
* INCLUDES
*********************/
#include "lv_calendar_header_arrow.h"
#if LV_USE_CALENDAR && LV_USE_CALENDAR_HEADER_ARROW
#include "lv_calendar.h"
#include "../button/lv_button.h"
#include "../label/lv_label.h"
#include "../../layouts/flex/lv_flex.h"
#include "../../misc/lv_assert.h"
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
static void my_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj);
static void month_event_cb(lv_event_t * e);
static void value_changed_event_cb(lv_event_t * e);
/**********************
* STATIC VARIABLES
**********************/
const lv_obj_class_t lv_calendar_header_arrow_class = {
.base_class = &lv_obj_class,
.constructor_cb = my_constructor,
.width_def = LV_PCT(100),
.height_def = LV_DPI_DEF / 3,
.name = "calendar-header-arrow",
};
static const char * month_names_def[12] = LV_CALENDAR_DEFAULT_MONTH_NAMES;
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
lv_obj_t * lv_calendar_header_arrow_create(lv_obj_t * parent)
{
lv_obj_t * obj = lv_obj_class_create_obj(&lv_calendar_header_arrow_class, parent);
lv_obj_class_init_obj(obj);
return obj;
}
/**********************
* STATIC FUNCTIONS
**********************/
static void my_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj)
{
LV_TRACE_OBJ_CREATE("begin");
LV_UNUSED(class_p);
lv_obj_move_to_index(obj, 0);
lv_obj_set_flex_flow(obj, LV_FLEX_FLOW_ROW);
lv_obj_set_flex_align(obj, LV_FLEX_ALIGN_START, LV_FLEX_ALIGN_CENTER, LV_FLEX_ALIGN_START);
lv_obj_t * mo_prev = lv_button_create(obj);
lv_obj_set_style_bg_image_src(mo_prev, LV_SYMBOL_LEFT, 0);
lv_obj_set_height(mo_prev, lv_pct(100));
lv_obj_update_layout(mo_prev);
int32_t btn_size = lv_obj_get_height(mo_prev);
lv_obj_set_width(mo_prev, btn_size);
lv_obj_add_event_cb(mo_prev, month_event_cb, LV_EVENT_CLICKED, NULL);
lv_obj_remove_flag(mo_prev, LV_OBJ_FLAG_CLICK_FOCUSABLE);
lv_obj_t * label = lv_label_create(obj);
lv_label_set_long_mode(label, LV_LABEL_LONG_SCROLL_CIRCULAR);
lv_obj_set_style_text_align(label, LV_TEXT_ALIGN_CENTER, 0);
lv_obj_set_flex_grow(label, 1);
lv_obj_t * mo_next = lv_button_create(obj);
lv_obj_set_style_bg_image_src(mo_next, LV_SYMBOL_RIGHT, 0);
lv_obj_set_size(mo_next, btn_size, btn_size);
lv_obj_add_event_cb(mo_next, month_event_cb, LV_EVENT_CLICKED, NULL);
lv_obj_remove_flag(mo_next, LV_OBJ_FLAG_CLICK_FOCUSABLE);
lv_obj_add_event_cb(obj, value_changed_event_cb, LV_EVENT_VALUE_CHANGED, NULL);
/*Refresh the drop downs*/
lv_obj_send_event(obj, LV_EVENT_VALUE_CHANGED, NULL);
}
static void month_event_cb(lv_event_t * e)
{
lv_obj_t * btn = lv_event_get_current_target(e);
lv_obj_t * header = lv_obj_get_parent(btn);
lv_obj_t * calendar = lv_obj_get_parent(header);
const lv_calendar_date_t * d;
d = lv_calendar_get_showed_date(calendar);
lv_calendar_date_t newd = *d;
LV_ASSERT_FORMAT_MSG(newd.year >= 0 && newd.month >= 1 && newd.month <= 12,
"Invalid date: %d-%d", newd.year, newd.month);
/*The last child is the right button*/
if(lv_obj_get_child(header, 0) == btn) {
if(newd.month == 1) {
newd.month = 12;
newd.year --;
}
else {
newd.month --;
}
}
else {
if(newd.month == 12) {
newd.month = 1;
newd.year ++;
}
else {
newd.month ++;
}
}
lv_calendar_set_showed_date(calendar, newd.year, newd.month);
lv_obj_t * label = lv_obj_get_child(header, 1);
lv_label_set_text_fmt(label, "%d %s", newd.year, month_names_def[newd.month - 1]);
}
static void value_changed_event_cb(lv_event_t * e)
{
lv_obj_t * header = lv_event_get_current_target(e);
lv_obj_t * calendar = lv_obj_get_parent(header);
const lv_calendar_date_t * date = lv_calendar_get_showed_date(calendar);
LV_ASSERT_FORMAT_MSG(date->year >= 0 && date->month >= 1 && date->month <= 12,
"Invalid date: %d-%d", date->year, date->month);
lv_obj_t * label = lv_obj_get_child(header, 1);
lv_label_set_text_fmt(label, "%d %s", date->year, month_names_def[date->month - 1]);
}
#endif /*LV_USE_CALENDAR_HEADER_ARROW*/
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