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