Pebble-Time-Watchface-Super.../src/main.c

264 lines
9.1 KiB
C

#include <pebble.h>
#define KEY_BG_COLOR 0
#define KEY_MINUTE_COLOR 1
#define KEY_HOUR_COLOR 2
#define KEY_PEG_COLOR 3
#define ANTIALIASING true
#define FINAL_RADIUS 88
#define HAND_WIDTH 7
#define DOT_RADIUS HAND_WIDTH/4
#define HAND_MARGIN_OUTER 10-(HAND_WIDTH/2)
#define HAND_MARGIN_INNER 0
#define ANIMATION_DURATION 600
#define ANIMATION_DELAY 150
uint8_t shadowtable[] = {192,192,192,192,192,192,192,192,192,192,192,192,192,192,192,192, \
192,192,192,192,192,192,192,192,192,192,192,192,192,192,192,192, \
192,192,192,192,192,192,192,192,192,192,192,192,192,192,192,192, \
192,192,192,192,192,192,192,192,192,192,192,192,192,192,192,192, \
192,192,192,193,192,192,192,193,192,192,192,193,196,196,196,197, \
192,192,192,193,192,192,192,193,192,192,192,193,196,196,196,197, \
192,192,192,193,192,192,192,193,192,192,192,193,196,196,196,197, \
208,208,208,209,208,208,208,209,208,208,208,209,212,212,212,213, \
192,192,193,194,192,192,193,194,196,196,197,198,200,200,201,202, \
192,192,193,194,192,192,193,194,196,196,197,198,200,200,201,202, \
208,208,209,210,208,208,209,210,212,212,213,214,216,216,217,218, \
224,224,225,226,224,224,225,226,228,228,229,230,232,232,233,234, \
192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207, \
208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223, \
224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239, \
240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255};
typedef struct {
int hours;
int minutes;
} Time;
static Window *s_main_window;
static Layer *s_canvas_layer;
static GPoint s_center;
static Time s_last_time;
static int s_radius = 0;
static bool s_animating = false;
static float anim_offset;
static GColor gcolorbg, gcolorm, gcolorh, gcolorp;
static void inbox_received_handler(DictionaryIterator *iter, void *context) {
Tuple *colorbg_t = dict_find(iter, KEY_BG_COLOR);
Tuple *colorm_t = dict_find(iter, KEY_MINUTE_COLOR);
Tuple *colorh_t = dict_find(iter, KEY_HOUR_COLOR);
Tuple *colorp_t = dict_find(iter, KEY_PEG_COLOR);
if(colorbg_t) {
int colorbg = colorbg_t->value->int32;
persist_write_int(KEY_BG_COLOR, colorbg);
gcolorbg = GColorFromHEX(colorbg);
}
if(colorm_t) {
int colorm = colorm_t->value->int32;
persist_write_int(KEY_MINUTE_COLOR, colorm);
gcolorm = GColorFromHEX(colorm);
}
if(colorh_t) {
int colorh = colorh_t->value->int32;
persist_write_int(KEY_HOUR_COLOR, colorh);
gcolorh = GColorFromHEX(colorh);
}
if(colorp_t) {
int colorp = colorp_t->value->int32;
persist_write_int(KEY_PEG_COLOR, colorp);
gcolorp = GColorFromHEX(colorp);
}
if(s_canvas_layer) {
layer_mark_dirty(s_canvas_layer);
}
}
/*************************** AnimationImplementation **************************/
static void animation_started(Animation *anim, void *context) {
s_animating = true;
}
static void animation_stopped(Animation *anim, bool stopped, void *context) {
s_animating = false;
}
static void animate(int duration, int delay, AnimationImplementation *implementation, bool handlers) {
Animation *anim = animation_create();
animation_set_duration(anim, duration);
animation_set_delay(anim, delay);
animation_set_curve(anim, AnimationCurveEaseInOut);
animation_set_implementation(anim, implementation);
if(handlers) {
animation_set_handlers(anim, (AnimationHandlers) {
.started = animation_started,
.stopped = animation_stopped
}, NULL);
}
animation_schedule(anim);
}
/************************************ UI **************************************/
static void tick_handler(struct tm *tick_time, TimeUnits changed) {
// Store time
s_last_time.hours = tick_time->tm_hour;
s_last_time.hours -= (s_last_time.hours > 12) ? 12 : 0;
s_last_time.minutes = tick_time->tm_min;
// Redraw
if(s_canvas_layer) {
layer_mark_dirty(s_canvas_layer);
}
}
static void update_proc(Layer *layer, GContext *ctx) {
// Color background?
GRect bounds = layer_get_bounds(layer);
graphics_context_set_fill_color(ctx, gcolorbg);
graphics_fill_rect(ctx, bounds, 0, GCornerNone);
graphics_context_set_antialiased(ctx, ANTIALIASING);
// Don't use current time while animating
Time mode_time = s_last_time;
// Adjust for minutes through the hour
float hour_angle = TRIG_MAX_ANGLE * mode_time.hours / 12;
float minute_angle = TRIG_MAX_ANGLE * mode_time.minutes / 60;
hour_angle += (minute_angle / TRIG_MAX_ANGLE) * (TRIG_MAX_ANGLE / 12);
if (s_animating) {
hour_angle += anim_offset;
minute_angle -= anim_offset;
}
// Plot hands
GPoint minute_hand_outer = (GPoint) {
.x = (int16_t)(sin_lookup(TRIG_MAX_ANGLE * mode_time.minutes / 60) * (int32_t)(s_radius - HAND_MARGIN_OUTER) / TRIG_MAX_RATIO) + s_center.x,
.y = (int16_t)(-cos_lookup(TRIG_MAX_ANGLE * mode_time.minutes / 60) * (int32_t)(s_radius - HAND_MARGIN_OUTER) / TRIG_MAX_RATIO) + s_center.y,
};
GPoint minute_hand_inner = (GPoint) {
.x = (int16_t)(sin_lookup(TRIG_MAX_ANGLE * mode_time.minutes / 60) * (int32_t)HAND_MARGIN_INNER / TRIG_MAX_RATIO) + s_center.x,
.y = (int16_t)(-cos_lookup(TRIG_MAX_ANGLE * mode_time.minutes / 60) * (int32_t)HAND_MARGIN_INNER / TRIG_MAX_RATIO) + s_center.y,
};
GPoint hour_hand_outer = (GPoint) {
.x = (int16_t)(sin_lookup(hour_angle) * (int32_t)(s_radius - HAND_MARGIN_OUTER - (0.3 * s_radius)) / TRIG_MAX_RATIO) + s_center.x,
.y = (int16_t)(-cos_lookup(hour_angle) * (int32_t)(s_radius - HAND_MARGIN_OUTER - (0.3 * s_radius)) / TRIG_MAX_RATIO) + s_center.y,
};
GPoint hour_hand_inner = (GPoint) {
.x = (int16_t)(sin_lookup(hour_angle) * (int32_t)HAND_MARGIN_INNER / TRIG_MAX_RATIO) + s_center.x,
.y = (int16_t)(-cos_lookup(hour_angle) * (int32_t)HAND_MARGIN_INNER / TRIG_MAX_RATIO) + s_center.y,
};
// Draw hands with positive length only
if((s_radius - HAND_MARGIN_OUTER) > HAND_MARGIN_INNER) {
if(s_radius > 2 * HAND_MARGIN_OUTER) {
graphics_context_set_stroke_color(ctx, gcolorh);
graphics_context_set_stroke_width(ctx, HAND_WIDTH);
graphics_draw_line(ctx, hour_hand_inner, hour_hand_outer);
}
if(s_radius > HAND_MARGIN_OUTER) {
graphics_context_set_stroke_color(ctx, gcolorm);
graphics_context_set_stroke_width(ctx, HAND_WIDTH);
graphics_draw_line(ctx, minute_hand_inner, minute_hand_outer);
}
}
graphics_context_set_fill_color(ctx, gcolorp);
graphics_fill_circle(ctx, s_center, DOT_RADIUS);
}
static void window_load(Window *window) {
Layer *window_layer = window_get_root_layer(window);
GRect window_bounds = layer_get_bounds(window_layer);
s_center = grect_center_point(&window_bounds);
if (persist_exists(KEY_BG_COLOR)) {
int colorbg = persist_read_int(KEY_BG_COLOR);
gcolorbg = GColorFromHEX(colorbg);
} else {
gcolorbg=GColorBlack;
}
if (persist_exists(KEY_MINUTE_COLOR)) {
int colorm = persist_read_int(KEY_MINUTE_COLOR);
gcolorm = GColorFromHEX(colorm);
} else {
gcolorm=GColorWhite;
}
if (persist_exists(KEY_HOUR_COLOR)) {
int colorh = persist_read_int(KEY_HOUR_COLOR);
gcolorh = GColorFromHEX(colorh);
} else {
gcolorh=GColorRed;
}
if (persist_exists(KEY_PEG_COLOR)) {
int colorp = persist_read_int(KEY_PEG_COLOR);
gcolorp = GColorFromHEX(colorp);
} else {
gcolorp=GColorDarkGray;
}
s_canvas_layer = layer_create(window_bounds);
layer_set_update_proc(s_canvas_layer, update_proc);
layer_add_child(window_layer, s_canvas_layer);
}
static void window_unload(Window *window) {
layer_destroy(s_canvas_layer);
}
/*********************************** App **************************************/
static int anim_percentage(AnimationProgress dist_normalized, int max) {
return (int)(float)(((float)dist_normalized / (float)ANIMATION_NORMALIZED_MAX) * (float)max);
}
static void radius_update(Animation *anim, AnimationProgress dist_normalized) {
s_radius = anim_percentage(dist_normalized, FINAL_RADIUS);
layer_mark_dirty(s_canvas_layer);
}
static void init() {
srand(time(NULL));
time_t t = time(NULL);
struct tm *time_now = localtime(&t);
tick_handler(time_now, MINUTE_UNIT);
s_main_window = window_create();
window_set_window_handlers(s_main_window, (WindowHandlers) {
.load = window_load,
.unload = window_unload,
});
window_stack_push(s_main_window, true);
tick_timer_service_subscribe(MINUTE_UNIT, tick_handler);
app_message_register_inbox_received(inbox_received_handler);
app_message_open(app_message_inbox_size_maximum(), app_message_outbox_size_maximum());
// Prepare animations
AnimationImplementation radius_impl = {
.update = radius_update
};
animate(ANIMATION_DURATION, ANIMATION_DELAY, &radius_impl, false);
}
static void deinit() {
window_destroy(s_main_window);
}
int main() {
init();
app_event_loop();
deinit();
}