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/*
* Copyright (C) 2025 Reiner Herrmann
* SPDX-License-Identifier: GPL-3.0-or-later
*/
#include <pebble.h>
static Window *main_window;
static TextLayer *clock_text;
static TextLayer *date_text;
static TextLayer *header_text;
static TextLayer *mem_text;
static TextLayer *content_text;
static TextLayer *batt_text;
static GFont font;
static GFont font_small;
static Layer *background_layer;
#ifdef PBL_HEALTH
static TextLayer *steps_text;
static bool health_available = false;
#endif
#if PBL_DISPLAY_HEIGHT == 228
#define FONT_SIZE_LARGE 58
#define FONT_SIZE_SMALL 16
#define BORDER_PERCENT 5
#define HEADER "*** COMMODORE 64 ***"
#define DATE_FMT "%a %d. %b %Y"
#define STEPS_FMT "Steps:%d"
#elif PBL_DISPLAY_HEIGHT == 168
#define FONT_SIZE_LARGE 48
#define FONT_SIZE_SMALL 15
#define BORDER_PERCENT 3
#define HEADER "* COMMODORE 64 *"
#define DATE_FMT "%a %d.%b %y"
#define STEPS_FMT "S:%d"
#endif
#define FONT2(SIZE) (RESOURCE_ID_FONT_COMMODORE_ ## SIZE)
#define FONT(SIZE) FONT2(SIZE)
#define FONT_SMALL FONT(FONT_SIZE_SMALL)
#define FONT_LARGE FONT(FONT_SIZE_LARGE)
#define PALETTE_COLODORE
#if defined(PALETTE_COLODORE)
// https://www.colodore.com/
#define GColor_Red GColorFromHEX(0x813338)
#define GColor_Blue GColorFromHEX(0x2e2c9b)
#define GColor_Orange GColorFromHEX(0x8e5029)
#define GColor_Grey1 GColorFromHEX(0x4a4a4a)
#define GColor_Grey2 GColorFromHEX(0x7b7b7b)
#define GColor_LightBlue GColorFromHEX(0x6f6deb)
#define GColor_LightGrey GColorFromHEX(0xb2b2b2)
#elif defined(PALETTE_PEPTO)
// /usr/share/vice/C64/pepto-pal.vpl
#define GColor_Red GColorFromHEX(0x68372b)
#define GColor_Blue GColorFromHEX(0x352879)
#define GColor_Orange GColorFromHEX(0x6f4f25)
#define GColor_Grey1 GColorFromHEX(0x444444)
#define GColor_Grey2 GColorFromHEX(0x6c6c6c)
#define GColor_LightBlue GColorFromHEX(0x6c5eb5)
#define GColor_LightGrey GColorFromHEX(0x959595)
#elif defined(PALETTE_WIKIPEDIA)
// https://en.wikipedia.org/wiki/Commodore_64#Graphics
#define GColor_Red GColorFromHEX(0x9F4E44)
#define GColor_Blue GColorFromHEX(0x50459B)
#define GColor_Orange GColorFromHEX(0xA1683C)
#define GColor_Grey1 GColorFromHEX(0x626262)
#define GColor_Grey2 GColorFromHEX(0x898989)
#define GColor_LightBlue GColorFromHEX(0x887ECB)
#define GColor_LightGrey GColorFromHEX(0xADADAD)
#endif
#if defined(PBL_COLOR)
#define GColor_Border GColor_LightBlue
#define GColor_Background GColor_Blue
#define GColor_Text GColor_LightBlue
#define GColor_Clock GColor_LightGrey
#define GColor_Bat_Med GColor_Orange
#define GColor_Bat_Low GColor_Red
#elif defined(PBL_BW)
#define GColor_Border GColorWhite
#define GColor_Background GColorBlack
#define GColor_Text GColorWhite
#define GColor_Clock GColorWhite
#define GColor_Bat_Med GColorWhite
#define GColor_Bat_Low GColorWhite
#endif
static void background_update_proc(Layer *layer, GContext *ctx) {
GRect bounds = layer_get_bounds(layer);
graphics_context_set_fill_color(ctx, GColor_Background);
graphics_fill_rect(ctx, bounds, 0, GCornerNone);
}
static void main_window_load(Window *window) {
Layer *window_layer = window_get_root_layer(window);
GRect bounds = layer_get_unobstructed_bounds(window_layer);
font = fonts_load_custom_font(resource_get_handle(FONT_LARGE));
font_small = fonts_load_custom_font(resource_get_handle(FONT_SMALL));
/* inner background */
int16_t border_width = bounds.size.w * BORDER_PERCENT / 100;
GRect bg_bounds = GRect(border_width, border_width, bounds.size.w - 2*border_width, bounds.size.h - 2*border_width);
background_layer = layer_create(bg_bounds);
layer_set_update_proc(background_layer, background_update_proc);
layer_add_child(window_layer, background_layer);
/* header text */
header_text = text_layer_create(GRect(bg_bounds.origin.x, bg_bounds.origin.y, bg_bounds.size.w, FONT_SIZE_SMALL+2));
text_layer_set_background_color(header_text, GColorClear);
text_layer_set_text_color(header_text, GColor_Text);
text_layer_set_text_alignment(header_text, GTextAlignmentCenter);
text_layer_set_font(header_text, font_small);
text_layer_set_text(header_text, HEADER);
layer_add_child(window_layer, text_layer_get_layer(header_text));
/* free memory text */
mem_text = text_layer_create(GRect(bg_bounds.origin.x, bg_bounds.origin.y + FONT_SIZE_SMALL, bg_bounds.size.w, FONT_SIZE_SMALL+2));
text_layer_set_background_color(mem_text, GColorClear);
text_layer_set_text_color(mem_text, GColor_Text);
text_layer_set_text_alignment(mem_text, GTextAlignmentCenter);
text_layer_set_font(mem_text, font_small);
static char mem_buffer[20];
snprintf(mem_buffer, sizeof(mem_buffer), "%d bytes free", heap_bytes_free());
text_layer_set_text(mem_text, mem_buffer);
layer_add_child(window_layer, text_layer_get_layer(mem_text));
/* content text */
content_text = text_layer_create(GRect(bg_bounds.origin.x, bg_bounds.origin.y + 3*FONT_SIZE_SMALL, bg_bounds.size.w, FONT_SIZE_SMALL+2));
text_layer_set_background_color(content_text, GColorClear);
text_layer_set_text_color(content_text, GColor_Text);
text_layer_set_text_alignment(content_text, GTextAlignmentLeft);
text_layer_set_font(content_text, font_small);
text_layer_set_text(content_text, "READY.");
layer_add_child(window_layer, text_layer_get_layer(content_text));
/* clock text */
clock_text = text_layer_create(GRect(bg_bounds.origin.x, bounds.size.h/2 - FONT_SIZE_LARGE/2, bg_bounds.size.w, FONT_SIZE_LARGE+2));
text_layer_set_background_color(clock_text, GColorClear);
text_layer_set_text_color(clock_text, GColor_Clock);
text_layer_set_text_alignment(clock_text, GTextAlignmentCenter);
text_layer_set_font(clock_text, font);
layer_add_child(window_layer, text_layer_get_layer(clock_text));
/* date text */
date_text = text_layer_create(GRect(bg_bounds.origin.x, bounds.size.h/2 + FONT_SIZE_LARGE/2 + FONT_SIZE_SMALL, bg_bounds.size.w, FONT_SIZE_SMALL+2));
text_layer_set_background_color(date_text, GColorClear);
text_layer_set_text_color(date_text, GColor_Text);
text_layer_set_text_alignment(date_text, GTextAlignmentCenter);
text_layer_set_font(date_text, font_small);
layer_add_child(window_layer, text_layer_get_layer(date_text));
#ifdef PBL_HEALTH
/* step counter text */
steps_text = text_layer_create(GRect(bg_bounds.origin.x, bg_bounds.origin.y + bg_bounds.size.h - FONT_SIZE_SMALL - 2, bg_bounds.size.w, FONT_SIZE_SMALL+2));
text_layer_set_background_color(steps_text, GColorClear);
text_layer_set_text_color(steps_text, GColor_Text);
text_layer_set_text_alignment(steps_text, GTextAlignmentLeft);
text_layer_set_font(steps_text, font_small);
layer_add_child(window_layer, text_layer_get_layer(steps_text));
#endif
/* battery text */
batt_text = text_layer_create(GRect(bg_bounds.origin.x, bg_bounds.origin.y + bg_bounds.size.h - FONT_SIZE_SMALL - 2, bg_bounds.size.w, FONT_SIZE_SMALL+2));
text_layer_set_background_color(batt_text, GColorClear);
text_layer_set_text_color(batt_text, GColor_Text);
text_layer_set_text_alignment(batt_text, GTextAlignmentRight);
text_layer_set_font(batt_text, font_small);
layer_add_child(window_layer, text_layer_get_layer(batt_text));
}
static void main_window_unload(Window *window) {
text_layer_destroy(content_text);
text_layer_destroy(header_text);
text_layer_destroy(mem_text);
text_layer_destroy(clock_text);
text_layer_destroy(date_text);
text_layer_destroy(batt_text);
#ifdef PBL_HEALTH
text_layer_destroy(steps_text);
#endif
layer_destroy(background_layer);
fonts_unload_custom_font(font);
fonts_unload_custom_font(font_small);
}
static void update_time() {
time_t temp = time(NULL);
struct tm *tick_time = localtime(&temp);
static char buffer[8];
if (clock_is_24h_style()) {
strftime(buffer, sizeof(buffer), "%H:%M", tick_time);
} else {
strftime(buffer, sizeof(buffer), "%I:%M", tick_time);
}
text_layer_set_text(clock_text, buffer);
}
static void update_date() {
time_t temp = time(NULL);
struct tm *tick_time = localtime(&temp);
static char buffer[20];
strftime(buffer, sizeof(buffer), DATE_FMT, tick_time);
text_layer_set_text(date_text, buffer);
}
static void tick_handler(struct tm *tick_time, TimeUnits units_changed) {
if (units_changed & MINUTE_UNIT) {
update_time();
}
if (units_changed & DAY_UNIT) {
update_date();
}
}
static void battery_handler(BatteryChargeState charge) {
static char buffer[12];
const char *charge_indicator = charge.is_charging ? "^" : "";
snprintf(buffer, sizeof(buffer), "%sBat:%d%%", charge_indicator, charge.charge_percent);
if (charge.charge_percent <= 20) {
text_layer_set_text_color(batt_text, GColor_Bat_Med);
} else if (charge.charge_percent <= 10) {
text_layer_set_text_color(batt_text, GColor_Bat_Low);
} else {
text_layer_set_text_color(batt_text, GColor_Text);
}
text_layer_set_text(batt_text, buffer);
}
#ifdef PBL_HEALTH
static void health_handler(HealthEventType event, void *context) {
static char buffer[24];
HealthValue steps;
switch (event) {
case HealthEventSignificantUpdate:
case HealthEventMovementUpdate:
steps = health_service_sum_today(HealthMetricStepCount);
snprintf(buffer, sizeof(buffer), STEPS_FMT, (int) steps);
text_layer_set_text(steps_text, buffer);
break;
default:
break;
}
}
#endif
static void init() {
main_window = window_create();
window_set_window_handlers(main_window, (WindowHandlers) {
.load = main_window_load,
.unload = main_window_unload,
});
window_set_background_color(main_window, GColor_Border);
window_stack_push(main_window, true);
tick_timer_service_subscribe(MINUTE_UNIT | DAY_UNIT, tick_handler);
battery_state_service_subscribe(battery_handler);
#ifdef PBL_HEALTH
health_available = health_service_events_subscribe(health_handler, NULL);
#endif
/* initialize dynamic texts */
update_time();
update_date();
battery_handler(battery_state_service_peek());
}
static void deinit() {
#ifdef PBL_HEALTH
health_service_events_unsubscribe();
#endif
battery_state_service_unsubscribe();
tick_timer_service_unsubscribe();
window_destroy(main_window);
}
int main() {
init();
app_event_loop();
deinit();
}
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