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Sensor-Watch/movement/watch_faces/clock/world_clock_face.c
Matheus Afonso Martins Moreira ac5bf8cfce Merge PR #470 - implement automatic DST toggling 
Implements logic to automatically offset daylight saving time settings
when calculating timezone offsets. This should make the DST functions
work automatically with no need for user input in most cases.

Reviewed-by: Matheus Afonso Martins Moreira <matheus@matheusmoreira.com>
GitHub-Pull-Request: https://github.com/joeycastillo/Sensor-Watch/pull/470
2024-09-08 13:41:52 -03:00

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/*
* MIT License
*
* Copyright (c) 2022 Joey Castillo
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <stdlib.h>
#include <string.h>
#include "world_clock_face.h"
#include "watch.h"
#include "watch_utility.h"
void world_clock_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr) {
(void) settings;
(void) watch_face_index;
if (*context_ptr == NULL) {
*context_ptr = malloc(sizeof(world_clock_state_t));
memset(*context_ptr, 0, sizeof(world_clock_state_t));
uint8_t backup_register = movement_claim_backup_register();
if (backup_register) {
world_clock_state_t *state = (world_clock_state_t *)*context_ptr;
state->settings.reg = watch_get_backup_data(backup_register);
state->backup_register = backup_register;
}
}
}
void world_clock_face_activate(movement_settings_t *settings, void *context) {
(void) settings;
world_clock_state_t *state = (world_clock_state_t *)context;
state->current_screen = 0;
if (watch_tick_animation_is_running()) watch_stop_tick_animation();
}
static bool world_clock_face_do_display_mode(movement_event_t event, movement_settings_t *settings, world_clock_state_t *state) {
char buf[11];
uint8_t pos;
uint32_t timestamp;
uint32_t previous_date_time;
watch_date_time date_time;
switch (event.event_type) {
case EVENT_ACTIVATE:
state->tz = get_timezone_offset(settings->bit.time_zone, watch_rtc_get_date_time());
if (settings->bit.clock_mode_24h) watch_set_indicator(WATCH_INDICATOR_24H);
watch_set_colon();
state->previous_date_time = 0xFFFFFFFF;
// fall through
case EVENT_TICK:
case EVENT_LOW_ENERGY_UPDATE:
date_time = watch_rtc_get_date_time();
timestamp = watch_utility_date_time_to_unix_time(date_time, state->tz * 60);
date_time = watch_utility_date_time_from_unix_time(timestamp, state->tz * 60);
previous_date_time = state->previous_date_time;
state->previous_date_time = date_time.reg;
bool set_leading_zero = false;
if ((date_time.reg >> 6) == (previous_date_time >> 6) && event.event_type != EVENT_LOW_ENERGY_UPDATE) {
// everything before seconds is the same, don't waste cycles setting those segments.
pos = 8;
sprintf(buf, "%02d", date_time.unit.second);
} else if ((date_time.reg >> 12) == (previous_date_time >> 12) && event.event_type != EVENT_LOW_ENERGY_UPDATE) {
// everything before minutes is the same.
pos = 6;
sprintf(buf, "%02d%02d", date_time.unit.minute, date_time.unit.second);
} else {
// other stuff changed; let's do it all.
if (!settings->bit.clock_mode_24h) {
// if we are in 12 hour mode, do some cleanup.
if (date_time.unit.hour < 12) {
watch_clear_indicator(WATCH_INDICATOR_PM);
} else {
watch_set_indicator(WATCH_INDICATOR_PM);
}
date_time.unit.hour %= 12;
if (date_time.unit.hour == 0) date_time.unit.hour = 12;
} else if (settings->bit.clock_24h_leading_zero && date_time.unit.hour < 10) {
set_leading_zero = true;
}
pos = 0;
if (event.event_type == EVENT_LOW_ENERGY_UPDATE) {
if (!watch_tick_animation_is_running()) watch_start_tick_animation(500);
sprintf(buf, "%c%c%2d%2d%02d ",
movement_valid_position_0_chars[state->settings.bit.char_0],
movement_valid_position_1_chars[state->settings.bit.char_1],
date_time.unit.day,
date_time.unit.hour,
date_time.unit.minute);
} else {
sprintf(buf, "%c%c%2d%2d%02d%02d",
movement_valid_position_0_chars[state->settings.bit.char_0],
movement_valid_position_1_chars[state->settings.bit.char_1],
date_time.unit.day,
date_time.unit.hour,
date_time.unit.minute,
date_time.unit.second);
}
}
watch_display_string(buf, pos);
if (set_leading_zero)
watch_display_string("0", 4);
break;
case EVENT_ALARM_LONG_PRESS:
movement_request_tick_frequency(4);
state->current_screen = 1;
break;
default:
return movement_default_loop_handler(event, settings);
}
return true;
}
static bool _world_clock_face_do_settings_mode(movement_event_t event, movement_settings_t *settings, world_clock_state_t *state) {
switch (event.event_type) {
case EVENT_MODE_BUTTON_UP:
if (state->backup_register) watch_store_backup_data(state->settings.reg, state->backup_register);
movement_move_to_next_face();
return false;
case EVENT_LIGHT_BUTTON_DOWN:
state->current_screen++;
if (state->current_screen > 3) {
movement_request_tick_frequency(1);
state->current_screen = 0;
if (state->backup_register) watch_store_backup_data(state->settings.reg, state->backup_register);
event.event_type = EVENT_ACTIVATE;
return world_clock_face_do_display_mode(event, settings, state);
}
break;
case EVENT_ALARM_BUTTON_DOWN:
switch (state->current_screen) {
case 1:
state->settings.bit.char_0++;
if (state->settings.bit.char_0 >= strlen(movement_valid_position_0_chars)) {
state->settings.bit.char_0 = 0;
}
break;
case 2:
state->settings.bit.char_1++;
if (state->settings.bit.char_1 >= strlen(movement_valid_position_1_chars)) {
state->settings.bit.char_1 = 0;
}
break;
case 3:
state->settings.bit.timezone_index++;
if (state->settings.bit.timezone_index > 40) state->settings.bit.timezone_index = 0;
break;
}
break;
case EVENT_TIMEOUT:
movement_move_to_face(0);
break;
default:
break;
}
char buf[13];
sprintf(buf, "%c%c %3d%02d ",
movement_valid_position_0_chars[state->settings.bit.char_0],
movement_valid_position_1_chars[state->settings.bit.char_1],
(int8_t) (state->tz / 60),
(int8_t) (state->tz % 60) * (state->tz < 0 ? -1 : 1));
watch_set_colon();
watch_clear_indicator(WATCH_INDICATOR_PM);
// blink up the parameter we're setting
if (event.subsecond % 2) {
switch (state->current_screen) {
case 1:
case 2:
buf[state->current_screen - 1] = '_';
break;
case 3:
watch_clear_colon();
sprintf(buf + 3, " ");
break;
}
}
watch_display_string(buf, 0);
return true;
}
bool world_clock_face_loop(movement_event_t event, movement_settings_t *settings, void *context) {
world_clock_state_t *state = (world_clock_state_t *)context;
if (state->current_screen == 0) {
return world_clock_face_do_display_mode(event, settings, state);
} else {
return _world_clock_face_do_settings_mode(event, settings, state);
}
}
void world_clock_face_resign(movement_settings_t *settings, void *context) {
(void) settings;
(void) context;
}
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