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lv_calendar: add option to start week on Monday (#1589)

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Diego Herranz 2020-06-17 21:09:40 +01:00 committed by GitHub
parent 2dd84e6de1
commit 65d029279b
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 17 additions and 1 deletions
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3
lv_conf_template.h
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@ -536,6 +536,9 @@ typedef void * lv_obj_user_data_t;
/*Calendar (dependencies: -)*/
#define LV_USE_CALENDAR 1
#if LV_USE_CALENDAR
# define LV_CALENDAR_WEEK_STARTS_MONDAY 0
#endif
/*Canvas (dependencies: lv_img)*/
#define LV_USE_CANVAS 1

5
src/lv_conf_internal.h
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@ -799,6 +799,11 @@
#ifndef LV_USE_CALENDAR
#define LV_USE_CALENDAR 1
#endif
#if LV_USE_CALENDAR
#ifndef LV_CALENDAR_WEEK_STARTS_MONDAY
# define LV_CALENDAR_WEEK_STARTS_MONDAY 0
#endif
#endif
/*Canvas (dependencies: lv_img)*/
#ifndef LV_USE_CANVAS

10
src/lv_widgets/lv_calendar.c
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@ -57,7 +57,11 @@ static uint8_t is_leap_year(uint32_t year);
**********************/
static lv_signal_cb_t ancestor_signal;
static lv_design_cb_t ancestor_design;
#if LV_CALENDAR_WEEK_STARTS_MONDAY != 0
static const char * day_name[7] = {"Mo", "Tu", "We", "Th", "Fr", "Sa", "Su"};
#else
static const char * day_name[7] = {"Su", "Mo", "Tu", "We", "Th", "Fr", "Sa"};
#endif
static const char * month_name[12] = {"January", "February", "March", "April", "May", "June",
"July", "August", "September", "October", "November", "December"
};
@ -1057,14 +1061,18 @@ static uint8_t is_leap_year(uint32_t year)
* @param year a year
* @param month a month
* @param day a day
* @return [0..6] which means [Sun..Sat]
* @return [0..6] which means [Sun..Sat] or [Mon..Sun] depending on LV_CALENDAR_WEEK_STARTS_MONDAY
*/
static uint8_t get_day_of_week(uint32_t year, uint32_t month, uint32_t day)
{
uint32_t a = month < 3 ? 1 : 0;
uint32_t b = year - a;
#if LV_CALENDAR_WEEK_STARTS_MONDAY
uint32_t day_of_week = (day + (31 * (month - 2 + 12 * a) / 12) + b + (b / 4) - (b / 100) + (b / 400) - 1) % 7;
#else
uint32_t day_of_week = (day + (31 * (month - 2 + 12 * a) / 12) + b + (b / 4) - (b / 100) + (b / 400)) % 7;
#endif
return day_of_week;
}