87 lines
3.2 KiB
C
87 lines
3.2 KiB
C
#include <stdlib.h>
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#include "simple_clock_widget.h"
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#include "watch.h"
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void simple_clock_widget_setup(LauncherSettings *settings, void ** context_ptr) {
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(void) settings;
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// the only context we need is the timestamp of the previous tick.
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*context_ptr = malloc(sizeof(uint32_t));
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}
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void simple_clock_widget_activate(LauncherSettings *settings, void *context) {
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if (settings->bit.clock_mode_24h) {
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watch_set_indicator(WATCH_INDICATOR_24H);
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}
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watch_set_colon();
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// this ensures that none of the timestamp fields will match, so we can re-render them all.
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*((uint32_t *)context) = 0xFFFFFFFF;
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}
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void simple_clock_widget_loop(LauncherEvent event, LauncherSettings *settings, uint8_t subsecond, void *context) {
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printf("simple_clock_widget_loop\n");
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(void) subsecond;
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const char weekdays[7][3] = {"SA", "SU", "MO", "TU", "WE", "TH", "FR"};
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char buf[11];
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uint8_t pos;
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watch_date_time date_time;
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uint32_t previous_date_time;
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switch (event) {
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case EVENT_TICK:
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case EVENT_ACTIVATE:
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date_time = watch_rtc_get_date_time();
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previous_date_time = *((uint32_t *)context);
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*((uint32_t *)context) = date_time.reg;
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if (date_time.reg >> 6 == previous_date_time >> 6) {
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// everything before seconds is the same, don't waste cycles setting those segments.
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pos = 8;
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sprintf(buf, "%02d", date_time.unit.second);
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} else if (date_time.reg >> 12 == previous_date_time >> 12) {
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// everything before minutes is the same.
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pos = 6;
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sprintf(buf, "%02d%02d", date_time.unit.minute, date_time.unit.second);
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} else {
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// other stuff changed; let's do it all.
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if (!settings->bit.clock_mode_24h) {
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// if we are in 12 hour mode, do some cleanup.
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if (date_time.unit.hour < 12) {
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watch_clear_indicator(WATCH_INDICATOR_PM);
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} else {
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watch_set_indicator(WATCH_INDICATOR_PM);
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}
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date_time.unit.hour %= 12;
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if (date_time.unit.hour == 0) date_time.unit.hour = 12;
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}
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pos = 0;
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sprintf(buf, "%s%2d%2d%02d%02d", weekdays[simple_clock_widget_get_weekday(date_time.unit.year, date_time.unit.month, date_time.unit.day)], date_time.unit.day, date_time.unit.hour, date_time.unit.minute, date_time.unit.second);
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}
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watch_display_string(buf, pos);
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break;
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case EVENT_MODE_BUTTON_UP:
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launcher_move_to_next_widget();
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return;
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case EVENT_LIGHT_BUTTON_UP:
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launcher_illuminate_led();
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break;
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case EVENT_ALARM_BUTTON_UP:
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break;
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default:
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break;
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}
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}
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void simple_clock_widget_resign(LauncherSettings *settings, void *context) {
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(void) settings;
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(void) context;
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}
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uint8_t simple_clock_widget_get_weekday(uint16_t year, uint16_t month, uint16_t day) {
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year += 20;
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if (month <= 2) {
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month += 12;
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year--;
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}
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return (day + 13 * (month + 1) / 5 + year + year / 4 + 525) % 7;
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}
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