You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
138 lines
4.1 KiB
C
138 lines
4.1 KiB
C
2 years ago
|
#include <furi.h>
|
||
|
#include <gui/gui.h>
|
||
|
#include <input/input.h>
|
||
|
#include <m-string.h>
|
||
|
#include <stdlib.h>
|
||
|
|
||
|
const double BPM_STEP_SIZE = 0.5;
|
||
|
|
||
|
typedef enum {
|
||
|
EventTypeTick,
|
||
|
EventTypeKey,
|
||
|
} EventType;
|
||
|
|
||
|
typedef struct {
|
||
|
EventType type;
|
||
|
InputEvent input;
|
||
|
} PluginEvent;
|
||
|
|
||
|
typedef struct {
|
||
|
double bpm;
|
||
|
bool playing;
|
||
|
} MetronomeState;
|
||
|
|
||
|
static void render_callback(Canvas* const canvas, void* ctx) {
|
||
|
const MetronomeState* metronome_state = acquire_mutex((ValueMutex*)ctx, 25);
|
||
|
if(metronome_state == NULL) {
|
||
|
return;
|
||
|
}
|
||
|
char* play_state;
|
||
|
string_t tempStr;
|
||
|
string_init(tempStr);
|
||
|
|
||
|
// border around the edge of the screen
|
||
|
canvas_draw_frame(canvas, 0, 0, 128, 64);
|
||
|
canvas_set_font(canvas, FontPrimary);
|
||
|
|
||
|
// draw playing state
|
||
|
if (metronome_state->playing) {
|
||
|
play_state = "Playing";
|
||
|
} else {
|
||
|
play_state = "Paused";
|
||
|
}
|
||
|
canvas_draw_str_aligned(canvas, 5, 10, AlignLeft, AlignBottom, play_state);
|
||
|
|
||
|
// draw BPM value
|
||
|
string_printf(tempStr, "%.2f", metronome_state->bpm);
|
||
|
canvas_set_font(canvas, FontBigNumbers);
|
||
|
canvas_draw_str_aligned(canvas, 64, 40, AlignCenter, AlignCenter, string_get_cstr(tempStr));
|
||
|
string_reset(tempStr);
|
||
|
|
||
|
string_clear(tempStr);
|
||
|
release_mutex((ValueMutex*)ctx, metronome_state);
|
||
|
}
|
||
|
|
||
|
static void input_callback(InputEvent* input_event, FuriMessageQueue* event_queue) {
|
||
|
furi_assert(event_queue);
|
||
|
|
||
|
PluginEvent event = {.type = EventTypeKey, .input = *input_event};
|
||
|
furi_message_queue_put(event_queue, &event, FuriWaitForever);
|
||
|
}
|
||
|
|
||
|
static void metronome_state_init(MetronomeState* const metronome_state) {
|
||
|
metronome_state->bpm = 120.0;
|
||
|
metronome_state->playing = false;
|
||
|
}
|
||
|
|
||
|
int32_t metronome_app() {
|
||
|
FuriMessageQueue* event_queue = furi_message_queue_alloc(8, sizeof(PluginEvent));
|
||
|
|
||
|
MetronomeState* metronome_state = malloc(sizeof(MetronomeState));
|
||
|
metronome_state_init(metronome_state);
|
||
|
|
||
|
ValueMutex state_mutex;
|
||
|
if(!init_mutex(&state_mutex, metronome_state, sizeof(MetronomeState))) {
|
||
|
FURI_LOG_E("Metronome", "cannot create mutex\r\n");
|
||
|
free(metronome_state);
|
||
|
return 255;
|
||
|
}
|
||
|
|
||
|
// Set system callbacks
|
||
|
ViewPort* view_port = view_port_alloc();
|
||
|
view_port_draw_callback_set(view_port, render_callback, &state_mutex);
|
||
|
view_port_input_callback_set(view_port, input_callback, event_queue);
|
||
|
|
||
|
// Open GUI and register view_port
|
||
|
Gui* gui = furi_record_open("gui");
|
||
|
gui_add_view_port(gui, view_port, GuiLayerFullscreen);
|
||
|
|
||
|
PluginEvent event;
|
||
|
for(bool processing = true; processing;) {
|
||
|
FuriStatus event_status = furi_message_queue_get(event_queue, &event, 100);
|
||
|
|
||
|
MetronomeState* metronome_state = (MetronomeState*)acquire_mutex_block(&state_mutex);
|
||
|
|
||
|
if(event_status == FuriStatusOk) {
|
||
|
// press events
|
||
|
if(event.type == EventTypeKey) {
|
||
|
if(event.input.type == InputTypePress) {
|
||
|
switch(event.input.key) {
|
||
|
case InputKeyUp:
|
||
|
break;
|
||
|
case InputKeyDown:
|
||
|
break;
|
||
|
case InputKeyRight:
|
||
|
metronome_state->bpm += BPM_STEP_SIZE;
|
||
|
break;
|
||
|
case InputKeyLeft:
|
||
|
metronome_state->bpm -= BPM_STEP_SIZE;
|
||
|
break;
|
||
|
case InputKeyOk:
|
||
|
metronome_state->playing = !metronome_state->playing;
|
||
|
break;
|
||
|
case InputKeyBack:
|
||
|
processing = false;
|
||
|
break;
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
} else {
|
||
|
FURI_LOG_D("Hello_world", "FuriMessageQueue: event timeout");
|
||
|
// event timeout
|
||
|
}
|
||
|
|
||
|
view_port_update(view_port);
|
||
|
release_mutex(&state_mutex, metronome_state);
|
||
|
}
|
||
|
|
||
|
view_port_enabled_set(view_port, false);
|
||
|
gui_remove_view_port(gui, view_port);
|
||
|
furi_record_close("gui");
|
||
|
view_port_free(view_port);
|
||
|
furi_message_queue_free(event_queue);
|
||
|
delete_mutex(&state_mutex);
|
||
|
free(metronome_state);
|
||
|
|
||
|
return 0;
|
||
|
}
|