403 lines
12 KiB
C
403 lines
12 KiB
C
/**
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* @file lv_calendar.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.h"
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#include "lvgl.h"
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#if LV_USE_CALENDAR
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#include "../../../misc/lv_assert.h"
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/*********************
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* DEFINES
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*********************/
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#define LV_CALENDAR_CTRL_TODAY LV_BTNMATRIX_CTRL_CUSTOM_1
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#define LV_CALENDAR_CTRL_HIGHLIGHT LV_BTNMATRIX_CTRL_CUSTOM_2
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#define MY_CLASS &lv_calendar_class
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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 lv_calendar_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj);
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static void draw_part_begin_event_cb(lv_event_t * e);
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static uint8_t get_day_of_week(uint32_t year, uint32_t month, uint32_t day);
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static uint8_t get_month_length(int32_t year, int32_t month);
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static uint8_t is_leap_year(uint32_t year);
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static void highlight_update(lv_obj_t * calendar);
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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_class = {
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.constructor_cb = lv_calendar_constructor,
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.width_def = (LV_DPI_DEF * 3) / 2,
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.height_def = (LV_DPI_DEF * 3) / 2,
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.group_def = LV_OBJ_CLASS_GROUP_DEF_TRUE,
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.instance_size = sizeof(lv_calendar_t),
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.base_class = &lv_obj_class
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};
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static const char * day_names_def[7] = LV_CALENDAR_DEFAULT_DAY_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_create(lv_obj_t * parent)
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{
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LV_LOG_INFO("begin");
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lv_obj_t * obj = lv_obj_class_create_obj(&lv_calendar_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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* Setter functions
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*====================*/
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void lv_calendar_set_day_names(lv_obj_t * obj, const char * day_names[])
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{
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LV_ASSERT_OBJ(obj, MY_CLASS);
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lv_calendar_t * calendar = (lv_calendar_t *)obj;
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uint32_t i;
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for(i = 0; i < 7; i++) {
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calendar->map[i] = day_names[i];
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}
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lv_obj_invalidate(obj);
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}
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void lv_calendar_set_today_date(lv_obj_t * obj, uint32_t year, uint32_t month, uint32_t day)
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{
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LV_ASSERT_OBJ(obj, MY_CLASS);
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lv_calendar_t * calendar = (lv_calendar_t *)obj;
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calendar->today.year = year;
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calendar->today.month = month;
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calendar->today.day = day;
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highlight_update(obj);
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}
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void lv_calendar_set_highlighted_dates(lv_obj_t * obj, lv_calendar_date_t highlighted[], uint16_t date_num)
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{
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LV_ASSERT_NULL(highlighted);
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LV_ASSERT_OBJ(obj, MY_CLASS);
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lv_calendar_t * calendar = (lv_calendar_t *)obj;
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calendar->highlighted_dates = highlighted;
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calendar->highlighted_dates_num = date_num;
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highlight_update(obj);
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}
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void lv_calendar_set_showed_date(lv_obj_t * obj, uint32_t year, uint32_t month)
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{
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LV_ASSERT_OBJ(obj, MY_CLASS);
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lv_calendar_t * calendar = (lv_calendar_t *)obj;
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calendar->showed_date.year = year;
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calendar->showed_date.month = month;
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calendar->showed_date.day = 1;
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lv_calendar_date_t d;
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d.year = calendar->showed_date.year;
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d.month = calendar->showed_date.month;
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d.day = calendar->showed_date.day;
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uint8_t i;
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/*Remove the disabled state but revert it for day names*/
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lv_btnmatrix_clear_btn_ctrl_all(calendar->btnm, LV_BTNMATRIX_CTRL_DISABLED);
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for(i = 0; i < 7; i++) {
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lv_btnmatrix_set_btn_ctrl(calendar->btnm, i, LV_BTNMATRIX_CTRL_DISABLED);
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}
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uint8_t act_mo_len = get_month_length(d.year, d.month);
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uint8_t day_first = get_day_of_week(d.year, d.month, 1);
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uint8_t c;
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for(i = day_first, c = 1; i < act_mo_len + day_first; i++, c++) {
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lv_snprintf(calendar->nums[i], sizeof(calendar->nums[0]), "%d", c);
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}
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uint8_t prev_mo_len = get_month_length(d.year, d.month - 1);
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for(i = 0, c = prev_mo_len - day_first + 1; i < day_first; i++, c++) {
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lv_snprintf(calendar->nums[i], sizeof(calendar->nums[0]), "%d", c);
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lv_btnmatrix_set_btn_ctrl(calendar->btnm, i + 7, LV_BTNMATRIX_CTRL_DISABLED);
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}
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for(i = day_first + act_mo_len, c = 1; i < 6 * 7; i++, c++) {
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lv_snprintf(calendar->nums[i], sizeof(calendar->nums[0]), "%d", c);
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lv_btnmatrix_set_btn_ctrl(calendar->btnm, i + 7, LV_BTNMATRIX_CTRL_DISABLED);
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}
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highlight_update(obj);
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/*Reset the focused button if the days changes*/
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if(lv_btnmatrix_get_selected_btn(calendar->btnm) != LV_BTNMATRIX_BTN_NONE) {
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lv_btnmatrix_set_selected_btn(calendar->btnm, day_first + 7);
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}
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lv_obj_invalidate(obj);
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/* The children of the calendar are probably headers.
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* Notify them to let the headers updated to the new date*/
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uint32_t child_cnt = lv_obj_get_child_cnt(obj);
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for(i = 0; i < child_cnt; i++) {
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lv_obj_t * child = lv_obj_get_child(obj, i);
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if(child == calendar->btnm) continue;
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lv_event_send(child, LV_EVENT_VALUE_CHANGED, obj);
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}
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}
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/*=====================
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* Getter functions
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*====================*/
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lv_obj_t * lv_calendar_get_btnmatrix(const lv_obj_t * obj)
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{
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LV_ASSERT_OBJ(obj, MY_CLASS);
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const lv_calendar_t * calendar = (lv_calendar_t *)obj;
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return calendar->btnm;
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}
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const lv_calendar_date_t * lv_calendar_get_today_date(const lv_obj_t * obj)
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{
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LV_ASSERT_OBJ(obj, MY_CLASS);
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const lv_calendar_t * calendar = (lv_calendar_t *)obj;
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return &calendar->today;
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}
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const lv_calendar_date_t * lv_calendar_get_showed_date(const lv_obj_t * obj)
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{
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LV_ASSERT_OBJ(obj, MY_CLASS);
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const lv_calendar_t * calendar = (lv_calendar_t *)obj;
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return &calendar->showed_date;
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}
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lv_calendar_date_t * lv_calendar_get_highlighted_dates(const lv_obj_t * obj)
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{
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LV_ASSERT_OBJ(obj, MY_CLASS);
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lv_calendar_t * calendar = (lv_calendar_t *)obj;
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return calendar->highlighted_dates;
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}
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uint16_t lv_calendar_get_highlighted_dates_num(const lv_obj_t * obj)
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{
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LV_ASSERT_OBJ(obj, MY_CLASS);
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lv_calendar_t * calendar = (lv_calendar_t *)obj;
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return calendar->highlighted_dates_num;
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}
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lv_res_t lv_calendar_get_pressed_date(const lv_obj_t * obj, lv_calendar_date_t * date)
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{
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LV_ASSERT_OBJ(obj, MY_CLASS);
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lv_calendar_t * calendar = (lv_calendar_t *)obj;
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uint16_t d = lv_btnmatrix_get_selected_btn(calendar->btnm);
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if(d == LV_BTNMATRIX_BTN_NONE) {
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date->year = 0;
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date->month = 0;
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date->day = 0;
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return LV_RES_INV;
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}
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const char * txt = lv_btnmatrix_get_btn_text(calendar->btnm, lv_btnmatrix_get_selected_btn(calendar->btnm));
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if(txt[1] == 0) date->day = txt[0] - '0';
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else date->day = (txt[0] - '0') * 10 + (txt[1] - '0');
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date->year = calendar->showed_date.year;
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date->month = calendar->showed_date.month;
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return LV_RES_OK;
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}
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/**********************
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* STATIC FUNCTIONS
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**********************/
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static void lv_calendar_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj)
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{
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LV_UNUSED(class_p);
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lv_calendar_t * calendar = (lv_calendar_t *)obj;
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/*Initialize the allocated 'ext'*/
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calendar->today.year = 2020;
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calendar->today.month = 1;
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calendar->today.day = 1;
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calendar->showed_date.year = 2020;
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calendar->showed_date.month = 1;
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calendar->showed_date.day = 1;
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calendar->highlighted_dates = NULL;
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calendar->highlighted_dates_num = 0;
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lv_memset_00(calendar->nums, sizeof(calendar->nums));
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uint8_t i;
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uint8_t j = 0;
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for(i = 0; i < 8 * 7; i++) {
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/*Every 8th string is "\n"*/
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if(i != 0 && (i + 1) % 8 == 0) {
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calendar->map[i] = "\n";
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}
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else if(i < 8) {
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calendar->map[i] = day_names_def[i];
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}
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else {
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calendar->nums[j][0] = 'x';
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calendar->map[i] = calendar->nums[j];
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j++;
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}
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}
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calendar->map[8 * 7 - 1] = "";
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calendar->btnm = lv_btnmatrix_create(obj);
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lv_btnmatrix_set_map(calendar->btnm, calendar->map);
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lv_btnmatrix_set_btn_ctrl_all(calendar->btnm, LV_BTNMATRIX_CTRL_CLICK_TRIG | LV_BTNMATRIX_CTRL_NO_REPEAT);
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lv_obj_add_event_cb(calendar->btnm, draw_part_begin_event_cb, LV_EVENT_DRAW_PART_BEGIN, NULL);
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lv_obj_set_width(calendar->btnm, lv_pct(100));
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lv_obj_set_flex_flow(obj, LV_FLEX_FLOW_COLUMN);
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lv_obj_set_flex_grow(calendar->btnm, 1);
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lv_calendar_set_showed_date(obj, calendar->showed_date.year, calendar->showed_date.month);
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lv_calendar_set_today_date(obj, calendar->today.year, calendar->today.month, calendar->today.day);
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lv_obj_add_flag(calendar->btnm, LV_OBJ_FLAG_EVENT_BUBBLE);
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}
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static void draw_part_begin_event_cb(lv_event_t * e)
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{
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lv_obj_t * obj = lv_event_get_target(e);
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lv_obj_draw_part_dsc_t * dsc = lv_event_get_param(e);
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if(dsc->part == LV_PART_ITEMS) {
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/*Day name styles*/
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if(dsc->id < 7) {
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dsc->rect_dsc->bg_opa = LV_OPA_TRANSP;
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dsc->rect_dsc->border_opa = LV_OPA_TRANSP;
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}
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else if(lv_btnmatrix_has_btn_ctrl(obj, dsc->id, LV_BTNMATRIX_CTRL_DISABLED)) {
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dsc->rect_dsc->bg_opa = LV_OPA_TRANSP;
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dsc->rect_dsc->border_opa = LV_OPA_TRANSP;
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dsc->label_dsc->color = lv_palette_main(LV_PALETTE_GREY);
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}
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if(lv_btnmatrix_has_btn_ctrl(obj, dsc->id, LV_CALENDAR_CTRL_HIGHLIGHT)) {
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dsc->rect_dsc->bg_opa = LV_OPA_40;
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dsc->rect_dsc->bg_color = lv_theme_get_color_primary(obj);
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if(lv_btnmatrix_get_selected_btn(obj) == dsc->id) {
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dsc->rect_dsc->bg_opa = LV_OPA_70;
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}
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}
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if(lv_btnmatrix_has_btn_ctrl(obj, dsc->id, LV_CALENDAR_CTRL_TODAY)) {
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dsc->rect_dsc->border_opa = LV_OPA_COVER;
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dsc->rect_dsc->border_color = lv_theme_get_color_primary(obj);
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dsc->rect_dsc->border_width += 1;
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}
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}
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}
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/**
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* Get the number of days in a month
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* @param year a year
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* @param month a month. The range is basically [1..12] but [-11..0] or [13..24] is also
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* supported to handle next/prev. year
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* @return [28..31]
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*/
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static uint8_t get_month_length(int32_t year, int32_t month)
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{
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month--;
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if(month < 0) {
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year--; /*Already in the previous year (won't be less then -12 to skip a whole year)*/
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month = 12 + month; /*`month` is negative, the result will be < 12*/
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}
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if(month >= 12) {
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year++;
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month -= 12;
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}
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/*month == 1 is february*/
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return (month == 1) ? (28 + is_leap_year(year)) : 31 - month % 7 % 2;
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}
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/**
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* Tells whether a year is leap year or not
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* @param year a year
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* @return 0: not leap year; 1: leap year
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*/
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static uint8_t is_leap_year(uint32_t year)
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{
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return (year % 4) || ((year % 100 == 0) && (year % 400)) ? 0 : 1;
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}
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/**
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* Get the day of the week
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* @param year a year
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* @param month a month [1..12]
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* @param day a day [1..32]
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* @return [0..6] which means [Sun..Sat] or [Mon..Sun] depending on LV_CALENDAR_WEEK_STARTS_MONDAY
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*/
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static uint8_t get_day_of_week(uint32_t year, uint32_t month, uint32_t day)
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{
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uint32_t a = month < 3 ? 1 : 0;
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uint32_t b = year - a;
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#if LV_CALENDAR_WEEK_STARTS_MONDAY
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uint32_t day_of_week = (day + (31 * (month - 2 + 12 * a) / 12) + b + (b / 4) - (b / 100) + (b / 400) - 1) % 7;
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#else
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uint32_t day_of_week = (day + (31 * (month - 2 + 12 * a) / 12) + b + (b / 4) - (b / 100) + (b / 400)) % 7;
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#endif
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return day_of_week ;
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}
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static void highlight_update(lv_obj_t * obj)
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{
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lv_calendar_t * calendar = (lv_calendar_t *)obj;
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uint16_t i;
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/*Clear all kind of selection*/
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lv_btnmatrix_clear_btn_ctrl_all(calendar->btnm, LV_CALENDAR_CTRL_TODAY | LV_CALENDAR_CTRL_HIGHLIGHT);
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uint8_t day_first = get_day_of_week(calendar->showed_date.year, calendar->showed_date.month, 1);
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if(calendar->highlighted_dates) {
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for(i = 0; i < calendar->highlighted_dates_num; i++) {
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if(calendar->highlighted_dates[i].year == calendar->showed_date.year &&
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calendar->highlighted_dates[i].month == calendar->showed_date.month) {
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lv_btnmatrix_set_btn_ctrl(calendar->btnm, calendar->highlighted_dates[i].day - 1 + day_first + 7,
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LV_CALENDAR_CTRL_HIGHLIGHT);
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}
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}
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}
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if(calendar->showed_date.year == calendar->today.year && calendar->showed_date.month == calendar->today.month) {
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lv_btnmatrix_set_btn_ctrl(calendar->btnm, calendar->today.day - 1 + day_first + 7, LV_CALENDAR_CTRL_TODAY);
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}
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}
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#endif /*LV_USE_CALENDAR*/
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