446 lines
19 KiB
C
446 lines
19 KiB
C
/*
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* MIT License
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*
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* Copyright (c) 2022 Joey Castillo
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* Sunrise/sunset calculations are public domain code by Paul Schlyter, December 1992
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*
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*/
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#include <stdlib.h>
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#include <string.h>
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#include <math.h>
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#include "sunrise_sunset_face.h"
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#include "watch.h"
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#include "watch_utility.h"
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#include "sunriset.h"
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#if __EMSCRIPTEN__
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#include <emscripten.h>
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#endif
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static const uint8_t _location_count = sizeof(longLatPresets) / sizeof(long_lat_presets_t);
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static void _sunrise_sunset_set_expiration(sunrise_sunset_state_t *state, watch_date_time next_rise_set) {
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uint32_t timestamp = watch_utility_date_time_to_unix_time(next_rise_set, 0);
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state->rise_set_expires = watch_utility_date_time_from_unix_time(timestamp + 60, 0);
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}
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static void _sunrise_sunset_face_update(movement_settings_t *settings, sunrise_sunset_state_t *state) {
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char buf[11];
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double rise, set, minutes, seconds;
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bool show_next_match = false;
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movement_location_t movement_location;
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if (state->longLatToUse == 0 || _location_count <= 1)
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movement_location = (movement_location_t) watch_get_backup_data(1);
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else{
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movement_location.bit.latitude = longLatPresets[state->longLatToUse].latitude;
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movement_location.bit.longitude = longLatPresets[state->longLatToUse].longitude;
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}
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if (movement_location.reg == 0) {
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watch_display_string("RI no Loc", 0);
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return;
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}
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watch_date_time date_time = watch_rtc_get_date_time(); // the current local date / time
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watch_date_time utc_now = watch_utility_date_time_convert_zone(date_time, movement_timezone_offsets[settings->bit.time_zone] * 60, 0); // the current date / time in UTC
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watch_date_time scratch_time; // scratchpad, contains different values at different times
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scratch_time.reg = utc_now.reg;
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// Weird quirky unsigned things were happening when I tried to cast these directly to doubles below.
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// it looks redundant, but extracting them to local int16's seemed to fix it.
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int16_t lat_centi = (int16_t)movement_location.bit.latitude;
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int16_t lon_centi = (int16_t)movement_location.bit.longitude;
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double lat = (double)lat_centi / 100.0;
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double lon = (double)lon_centi / 100.0;
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// sunriset returns the rise/set times as signed decimal hours in UTC.
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// this can mean hours below 0 or above 31, which won't fit into a watch_date_time struct.
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// to deal with this, we set aside the offset in hours, and add it back before converting it to a watch_date_time.
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double hours_from_utc = ((double)movement_timezone_offsets[settings->bit.time_zone]) / 60.0;
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// we loop twice because if it's after sunset today, we need to recalculate to display values for tomorrow.
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for(int i = 0; i < 2; i++) {
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uint8_t result = sun_rise_set(scratch_time.unit.year + WATCH_RTC_REFERENCE_YEAR, scratch_time.unit.month, scratch_time.unit.day, lon, lat, &rise, &set);
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if (result != 0) {
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watch_clear_colon();
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watch_clear_indicator(WATCH_INDICATOR_PM);
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watch_clear_indicator(WATCH_INDICATOR_24H);
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snprintf(buf, sizeof(buf), "%s%2d none ", (result == 1) ? "SE" : "rI", scratch_time.unit.day);
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watch_display_string(buf, 0);
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return;
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}
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watch_set_colon();
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if (settings->bit.clock_mode_24h && !settings->bit.clock_24h_leading_zero) watch_set_indicator(WATCH_INDICATOR_24H);
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rise += hours_from_utc;
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set += hours_from_utc;
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minutes = 60.0 * fmod(rise, 1);
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seconds = 60.0 * fmod(minutes, 1);
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scratch_time.unit.hour = floor(rise);
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if (seconds < 30) scratch_time.unit.minute = floor(minutes);
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else scratch_time.unit.minute = ceil(minutes);
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if (scratch_time.unit.minute == 60) {
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scratch_time.unit.minute = 0;
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scratch_time.unit.hour = (scratch_time.unit.hour + 1) % 24;
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}
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if (date_time.reg < scratch_time.reg) _sunrise_sunset_set_expiration(state, scratch_time);
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if (date_time.reg < scratch_time.reg || show_next_match) {
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if (state->rise_index == 0 || show_next_match) {
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bool set_leading_zero = false;
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if (!settings->bit.clock_mode_24h) {
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if (watch_utility_convert_to_12_hour(&scratch_time)) watch_set_indicator(WATCH_INDICATOR_PM);
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else watch_clear_indicator(WATCH_INDICATOR_PM);
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} else if (settings->bit.clock_24h_leading_zero && scratch_time.unit.hour < 10) {
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set_leading_zero = true;
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}
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snprintf(buf, sizeof(buf), "rI%2d%2d%02d%s", scratch_time.unit.day, scratch_time.unit.hour, scratch_time.unit.minute,longLatPresets[state->longLatToUse].name);
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watch_display_string(buf, 0);
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if (set_leading_zero)
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watch_display_string("0", 4);
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return;
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} else {
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show_next_match = true;
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}
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}
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minutes = 60.0 * fmod(set, 1);
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seconds = 60.0 * fmod(minutes, 1);
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scratch_time.unit.hour = floor(set);
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if (seconds < 30) scratch_time.unit.minute = floor(minutes);
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else scratch_time.unit.minute = ceil(minutes);
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if (scratch_time.unit.minute == 60) {
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scratch_time.unit.minute = 0;
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scratch_time.unit.hour = (scratch_time.unit.hour + 1) % 24;
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}
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if (date_time.reg < scratch_time.reg) _sunrise_sunset_set_expiration(state, scratch_time);
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if (date_time.reg < scratch_time.reg || show_next_match) {
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if (state->rise_index == 0 || show_next_match) {
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bool set_leading_zero = false;
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if (!settings->bit.clock_mode_24h) {
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if (watch_utility_convert_to_12_hour(&scratch_time)) watch_set_indicator(WATCH_INDICATOR_PM);
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else watch_clear_indicator(WATCH_INDICATOR_PM);
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} else if (settings->bit.clock_24h_leading_zero && scratch_time.unit.hour < 10) {
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set_leading_zero = true;
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}
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snprintf(buf, sizeof(buf), "SE%2d%2d%02d%s", scratch_time.unit.day, scratch_time.unit.hour, scratch_time.unit.minute, longLatPresets[state->longLatToUse].name);
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watch_display_string(buf, 0);
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if (set_leading_zero)
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watch_display_string("0", 4);
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return;
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} else {
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show_next_match = true;
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}
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}
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// it's after sunset. we need to display sunrise/sunset for tomorrow.
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uint32_t timestamp = watch_utility_date_time_to_unix_time(utc_now, 0);
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timestamp += 86400;
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scratch_time = watch_utility_date_time_from_unix_time(timestamp, 0);
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}
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}
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static int16_t _sunrise_sunset_face_latlon_from_struct(sunrise_sunset_lat_lon_settings_t val) {
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int16_t retval = (val.sign ? -1 : 1) *
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(
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val.hundreds * 10000 +
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val.tens * 1000 +
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val.ones * 100 +
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val.tenths * 10 +
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val.hundredths
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);
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return retval;
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}
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static sunrise_sunset_lat_lon_settings_t _sunrise_sunset_face_struct_from_latlon(int16_t val) {
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sunrise_sunset_lat_lon_settings_t retval;
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retval.sign = val < 0;
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val = abs(val);
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retval.hundredths = val % 10;
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val /= 10;
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retval.tenths = val % 10;
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val /= 10;
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retval.ones = val % 10;
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val /= 10;
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retval.tens = val % 10;
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val /= 10;
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retval.hundreds = val % 10;
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return retval;
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}
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static void _sunrise_sunset_face_update_location_register(sunrise_sunset_state_t *state) {
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if (state->location_changed) {
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movement_location_t movement_location;
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int16_t lat = _sunrise_sunset_face_latlon_from_struct(state->working_latitude);
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int16_t lon = _sunrise_sunset_face_latlon_from_struct(state->working_longitude);
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movement_location.bit.latitude = lat;
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movement_location.bit.longitude = lon;
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watch_store_backup_data(movement_location.reg, 1);
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state->location_changed = false;
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}
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}
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static void _sunrise_sunset_face_update_settings_display(movement_event_t event, sunrise_sunset_state_t *state) {
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char buf[11];
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switch (state->page) {
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case 0:
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return;
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case 1:
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snprintf(buf, sizeof(buf), "LA %c %04d", state->working_latitude.sign ? '-' : '+', abs(_sunrise_sunset_face_latlon_from_struct(state->working_latitude)));
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break;
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case 2:
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snprintf(buf, sizeof(buf), "LO %c%05d", state->working_longitude.sign ? '-' : '+', abs(_sunrise_sunset_face_latlon_from_struct(state->working_longitude)));
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break;
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}
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if (event.subsecond % 2) {
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buf[state->active_digit + 4] = ' ';
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}
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watch_display_string(buf, 0);
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}
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static void _sunrise_sunset_face_advance_digit(sunrise_sunset_state_t *state) {
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state->location_changed = true;
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switch (state->page) {
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case 1: // latitude
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switch (state->active_digit) {
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case 0:
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state->working_latitude.sign++;
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break;
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case 1:
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// we skip this digit
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break;
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case 2:
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state->working_latitude.tens = (state->working_latitude.tens + 1) % 10;
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if (abs(_sunrise_sunset_face_latlon_from_struct(state->working_latitude)) > 9000) {
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// prevent latitude from going over ±90.
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// TODO: perform these checks when advancing the digit?
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state->working_latitude.ones = 0;
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state->working_latitude.tenths = 0;
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state->working_latitude.hundredths = 0;
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}
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break;
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case 3:
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state->working_latitude.ones = (state->working_latitude.ones + 1) % 10;
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if (abs(_sunrise_sunset_face_latlon_from_struct(state->working_latitude)) > 9000) state->working_latitude.ones = 0;
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break;
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case 4:
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state->working_latitude.tenths = (state->working_latitude.tenths + 1) % 10;
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if (abs(_sunrise_sunset_face_latlon_from_struct(state->working_latitude)) > 9000) state->working_latitude.tenths = 0;
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break;
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case 5:
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state->working_latitude.hundredths = (state->working_latitude.hundredths + 1) % 10;
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if (abs(_sunrise_sunset_face_latlon_from_struct(state->working_latitude)) > 9000) state->working_latitude.hundredths = 0;
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break;
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}
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break;
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case 2: // longitude
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switch (state->active_digit) {
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case 0:
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state->working_longitude.sign++;
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break;
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case 1:
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state->working_longitude.hundreds = (state->working_longitude.hundreds + 1) % 10;
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if (abs(_sunrise_sunset_face_latlon_from_struct(state->working_longitude)) > 18000) {
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// prevent longitude from going over ±180
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state->working_longitude.tens = 8;
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state->working_longitude.ones = 0;
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state->working_longitude.tenths = 0;
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state->working_longitude.hundredths = 0;
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}
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break;
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case 2:
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state->working_longitude.tens = (state->working_longitude.tens + 1) % 10;
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if (abs(_sunrise_sunset_face_latlon_from_struct(state->working_longitude)) > 18000) state->working_longitude.tens = 0;
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break;
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case 3:
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state->working_longitude.ones = (state->working_longitude.ones + 1) % 10;
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if (abs(_sunrise_sunset_face_latlon_from_struct(state->working_longitude)) > 18000) state->working_longitude.ones = 0;
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break;
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case 4:
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state->working_longitude.tenths = (state->working_longitude.tenths + 1) % 10;
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if (abs(_sunrise_sunset_face_latlon_from_struct(state->working_longitude)) > 18000) state->working_longitude.tenths = 0;
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break;
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case 5:
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state->working_longitude.hundredths = (state->working_longitude.hundredths + 1) % 10;
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if (abs(_sunrise_sunset_face_latlon_from_struct(state->working_longitude)) > 18000) state->working_longitude.hundredths = 0;
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break;
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}
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break;
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}
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}
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void sunrise_sunset_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr) {
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(void) settings;
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(void) watch_face_index;
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if (*context_ptr == NULL) {
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*context_ptr = malloc(sizeof(sunrise_sunset_state_t));
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memset(*context_ptr, 0, sizeof(sunrise_sunset_state_t));
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}
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}
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void sunrise_sunset_face_activate(movement_settings_t *settings, void *context) {
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(void) settings;
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if (watch_tick_animation_is_running()) watch_stop_tick_animation();
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#if __EMSCRIPTEN__
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int16_t browser_lat = EM_ASM_INT({
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return lat;
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});
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int16_t browser_lon = EM_ASM_INT({
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return lon;
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});
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if ((watch_get_backup_data(1) == 0) && (browser_lat || browser_lon)) {
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movement_location_t browser_loc;
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browser_loc.bit.latitude = browser_lat;
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browser_loc.bit.longitude = browser_lon;
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watch_store_backup_data(browser_loc.reg, 1);
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}
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#endif
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sunrise_sunset_state_t *state = (sunrise_sunset_state_t *)context;
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movement_location_t movement_location = (movement_location_t) watch_get_backup_data(1);
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state->working_latitude = _sunrise_sunset_face_struct_from_latlon(movement_location.bit.latitude);
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state->working_longitude = _sunrise_sunset_face_struct_from_latlon(movement_location.bit.longitude);
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}
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bool sunrise_sunset_face_loop(movement_event_t event, movement_settings_t *settings, void *context) {
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sunrise_sunset_state_t *state = (sunrise_sunset_state_t *)context;
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switch (event.event_type) {
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case EVENT_ACTIVATE:
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_sunrise_sunset_face_update(settings, state);
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break;
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case EVENT_LOW_ENERGY_UPDATE:
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case EVENT_TICK:
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if (state->page == 0) {
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// if entering low energy mode, start tick animation
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if (event.event_type == EVENT_LOW_ENERGY_UPDATE && !watch_tick_animation_is_running()) watch_start_tick_animation(1000);
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// check if we need to update the display
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watch_date_time date_time = watch_rtc_get_date_time();
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if (date_time.reg >= state->rise_set_expires.reg) {
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// and on the off chance that this happened before EVENT_TIMEOUT snapped us back to rise/set 0, go back now
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state->rise_index = 0;
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_sunrise_sunset_face_update(settings, state);
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}
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} else {
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_sunrise_sunset_face_update_settings_display(event, state);
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}
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break;
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case EVENT_LIGHT_BUTTON_DOWN:
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if (state->page) {
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state->active_digit++;
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if (state->page == 1 && state->active_digit == 1) state->active_digit++; // max latitude is +- 90, no hundreds place
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if (state->active_digit > 5) {
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state->active_digit = 0;
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state->page = (state->page + 1) % 3;
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_sunrise_sunset_face_update_location_register(state);
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}
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_sunrise_sunset_face_update_settings_display(event, context);
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} else if (_location_count <= 1) {
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movement_illuminate_led();
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}
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if (state->page == 0) {
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movement_request_tick_frequency(1);
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_sunrise_sunset_face_update(settings, state);
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}
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break;
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case EVENT_LIGHT_LONG_PRESS:
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if (_location_count <= 1) break;
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else if (!state->page) movement_illuminate_led();
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break;
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case EVENT_LIGHT_BUTTON_UP:
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if (state->page == 0 && _location_count > 1) {
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state->longLatToUse = (state->longLatToUse + 1) % _location_count;
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_sunrise_sunset_face_update(settings, state);
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}
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break;
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case EVENT_ALARM_BUTTON_UP:
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if (state->page) {
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_sunrise_sunset_face_advance_digit(state);
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_sunrise_sunset_face_update_settings_display(event, context);
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} else {
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state->rise_index = (state->rise_index + 1) % 2;
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_sunrise_sunset_face_update(settings, state);
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}
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break;
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case EVENT_ALARM_LONG_PRESS:
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if (state->page == 0) {
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if (state->longLatToUse != 0) {
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state->longLatToUse = 0;
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_sunrise_sunset_face_update(settings, state);
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break;
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}
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state->page++;
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state->active_digit = 0;
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watch_clear_display();
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movement_request_tick_frequency(4);
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_sunrise_sunset_face_update_settings_display(event, context);
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}
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else {
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state->active_digit = 0;
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state->page = 0;
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_sunrise_sunset_face_update_location_register(state);
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_sunrise_sunset_face_update(settings, state);
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}
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break;
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case EVENT_TIMEOUT:
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if (watch_get_backup_data(1) == 0) {
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// if no location set, return home
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movement_move_to_face(0);
|
|
} else if (state->page || state->rise_index) {
|
|
// otherwise on timeout, exit settings mode and return to the next sunrise or sunset
|
|
state->page = 0;
|
|
state->rise_index = 0;
|
|
movement_request_tick_frequency(1);
|
|
_sunrise_sunset_face_update(settings, state);
|
|
}
|
|
break;
|
|
default:
|
|
return movement_default_loop_handler(event, settings);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void sunrise_sunset_face_resign(movement_settings_t *settings, void *context) {
|
|
(void) settings;
|
|
sunrise_sunset_state_t *state = (sunrise_sunset_state_t *)context;
|
|
state->page = 0;
|
|
state->active_digit = 0;
|
|
state->rise_index = 0;
|
|
_sunrise_sunset_face_update_location_register(state);
|
|
}
|