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Port close enough clock face to second-movement (#31)

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* Port over close enough clock face

* Clean up the code and comments
This commit is contained in:
Ruben Nic
2025-07-06 11:52:43 -04:00
committed by GitHub
parent d0f78aaa91
commit 55f8eaa257
5 changed files with 117 additions and 98 deletions
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250
watch-faces/clock/close_enough_face.c Normal file
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/*
* MIT License
*
* Copyright (c) 2025 Ruben Nic
*
* 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 <math.h>
#include "close_enough_face.h"
#include "watch.h"
#include "watch_utility.h"
#include "watch_common_display.h"
// 2.4 volts seems to offer adequate warning of a low battery condition?
// refined based on user reports and personal observations; may need further adjustment.
#ifndef CLOCK_FACE_LOW_BATTERY_VOLTAGE_THRESHOLD
#define CLOCK_FACE_LOW_BATTERY_VOLTAGE_THRESHOLD 2400
#endif
static const char *words[12] = {
" ",
" 5",
"10",
"15",
"20",
"25",
"30",
"35",
"40",
"45",
"50",
"55",
};
static const char *past_word = " P";
static const char *to_word = " 2";
static const char *oclock_word = "OC";
// sets when in the five minute period we switch
// from "X past HH" to "X to HH+1"
static const int hour_switch_index = 8;
static void clock_stop_tick_tock_animation(void) {
if (watch_sleep_animation_is_running()) {
watch_stop_sleep_animation();
watch_stop_blink();
}
}
static void clock_indicate(watch_indicator_t indicator, bool on) {
if (on) {
watch_set_indicator(indicator);
} else {
watch_clear_indicator(indicator);
}
}
void close_enough_face_setup(uint8_t watch_face_index, void ** context_ptr) {
(void) watch_face_index;
if (*context_ptr == NULL) {
*context_ptr = malloc(sizeof(close_enough_state_t));
memset(*context_ptr, 0, sizeof(close_enough_state_t));
}
}
void close_enough_face_activate(void *context) {
close_enough_state_t *state = (close_enough_state_t *)context;
clock_stop_tick_tock_animation();
clock_indicate(WATCH_INDICATOR_BELL, movement_alarm_enabled());
clock_indicate(WATCH_INDICATOR_24H, !!movement_clock_mode_24h());
// this ensures that none of the five_minute_periods will match, so we always rerender when the face activates
state->prev_five_minute_period = -1;
state->prev_min_checked = -1;
}
static void clock_check_battery_periodically(close_enough_state_t *state) {
// If the battery is low, skip the check. We have already indicated it.
if (state->battery_low) {
return;
}
watch_date_time_t date_time = movement_get_local_date_time();
if (date_time.unit.day == state->last_battery_check) { return; }
state->last_battery_check = date_time.unit.day;
uint16_t voltage = watch_get_vcc_voltage();
state->battery_low = voltage < CLOCK_FACE_LOW_BATTERY_VOLTAGE_THRESHOLD;
if (watch_get_lcd_type() == WATCH_LCD_TYPE_CUSTOM) {
// interlocking arrows imply "exchange" the battery.
clock_indicate(WATCH_INDICATOR_ARROWS, state->battery_low);
} else {
// LAP indicator on classic LCD is an adequate fallback.
clock_indicate(WATCH_INDICATOR_LAP, state->battery_low);
}
}
bool close_enough_face_loop(movement_event_t event, void *context) {
close_enough_state_t *state = (close_enough_state_t *)context;
watch_date_time_t date_time;
bool show_next_hour = false;
int prev_five_minute_period;
int prev_min_checked;
int close_enough_hour;
switch (event.event_type) {
case EVENT_ACTIVATE:
case EVENT_TICK:
case EVENT_LOW_ENERGY_UPDATE:
date_time = movement_get_local_date_time();
prev_five_minute_period = state->prev_five_minute_period;
prev_min_checked = state->prev_min_checked;
// check the battery voltage once a day...
clock_check_battery_periodically(state);
// same minute, skip update
if (date_time.unit.minute == prev_min_checked) {
break;
} else {
state->prev_min_checked = date_time.unit.minute;
}
int five_minute_period = (date_time.unit.minute / 5) % 12;
// Move to next five minute period if we are above 50% through the current five minute period (we are only checking the remainder)
if (fmodf(date_time.unit.minute / 5.0f, 1.0f) > 0.5f) {
// If we are on the last 5 interval and moving to the next period we need to display the next hour
if (five_minute_period == 11) {
show_next_hour = true;
}
five_minute_period = (five_minute_period + 1) % 12;
}
// same five_minute_period, skip update
if (five_minute_period == prev_five_minute_period) {
break;
}
close_enough_hour = date_time.unit.hour;
// move from "MM P HH" to "MM 2 HH+1"
if (five_minute_period >= hour_switch_index || show_next_hour) {
close_enough_hour = (close_enough_hour + 1) % 24;
show_next_hour = true;
}
if (movement_clock_mode_24h() != MOVEMENT_CLOCK_MODE_24H) {
// if we are at "MM 2 12", don't show the PM indicator
if (close_enough_hour < 12 || show_next_hour) {
watch_clear_indicator(WATCH_INDICATOR_PM);
} else {
watch_set_indicator(WATCH_INDICATOR_PM);
}
close_enough_hour %= 12;
if (close_enough_hour == 0) {
close_enough_hour = 12;
}
}
char first_word[3];
char second_word[3];
char third_word[3];
if (five_minute_period == 0) { // " HH OC",
sprintf(first_word, " ", 3);
sprintf(second_word, "%2d", close_enough_hour);
strncpy(third_word, oclock_word, 3);
} else { // "MM P HH" or "MM 2 HH+1"
int words_length = sizeof(words) / sizeof(words[0]);
strncpy(
first_word,
show_next_hour ?
words[words_length - five_minute_period] :
words[five_minute_period],
3
);
strncpy(
second_word,
show_next_hour ? to_word : past_word,
3
);
sprintf(third_word, "%2d", close_enough_hour);
}
watch_display_text_with_fallback(
WATCH_POSITION_TOP_LEFT,
watch_utility_get_long_weekday(date_time), watch_utility_get_weekday(date_time)
);
char day_buf[2 + 1];
sprintf(day_buf, "%2d", date_time.unit.day);
watch_display_text(
WATCH_POSITION_TOP_RIGHT,
day_buf
);
char words_buf[6 + 1];
sprintf(words_buf,
"%s%s%s",
first_word,
second_word,
third_word
);
watch_display_text(
WATCH_POSITION_BOTTOM,
words_buf
);
state->prev_five_minute_period = five_minute_period;
break;
default:
return movement_default_loop_handler(event);
}
return true;
}
void close_enough_face_resign(void *context) {
(void) context;
}

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watch-faces/clock/close_enough_face.h Normal file
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/*
* MIT License
*
* Copyright (c) 2025 Ruben Nic
*
* 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.
*/
#pragma once
#include "movement.h"
/*
* CLOSE ENOUGH CLOCK FACE
*
* Displays the current time; but only in periods of 5.
* Some examples:
* - 5:10 is "10 past 5" displayed as "10 P 5"
* - 5:45 is "15 to 6" displayed as "15 2 6"
* - 6:00 is "6 o'clock" displayed as "6 OC"
*/
typedef struct {
int prev_five_minute_period;
int prev_min_checked;
uint8_t last_battery_check;
bool battery_low;
} close_enough_state_t;
void close_enough_face_setup(uint8_t watch_face_index, void ** context_ptr);
void close_enough_face_activate(void *context);
bool close_enough_face_loop(movement_event_t event, void *context);
void close_enough_face_resign(void *context);
#define close_enough_face ((const watch_face_t){ \
close_enough_face_setup, \
close_enough_face_activate, \
close_enough_face_loop, \
close_enough_face_resign, \
NULL, \
})