Refresh button

2 files changed, 53 insertions, 23 deletions

diff --git a/README.md b/README.md
new file mode 100644
index 0000000..e3da8d7
--- /dev/null
+++ b/README.md
@@ -0,0 +1,12 @@
+# Directional Audio Visualizer (For Deaf People)
+The main goal of this project is to help people with SSD (single sided deafness) have stereo.
+
+### Dependancies:
+- portaudio
+- gtk4
+
+#### Arch Linux:
+```sh
+pacman -S portaudio gtk4
+make run
+```
diff --git a/src/main.c b/src/main.c
index e5b7988..f5db2de 100644
--- a/src/main.c
+++ b/src/main.c
@@ -82,11 +82,47 @@ static void draw(cairo_t *cr, GtkWidget *area)
 static void draw_cb(GtkDrawingArea *drawing_area, cairo_t *cr, int width, int height, gpointer data)
 {
 	cairo_paint(cr);
-	draw(cr, data);
+	draw(cr, (GtkWidget*)data);
 }
 
-static void refresh()
+static void refresh(GtkWidget* grid)
 {
+	Pa_Terminate();
+	Pa_Initialize();
+	GtkWidget *button;
+	int numDevices = Pa_GetDeviceCount();
+
+	if (numDevices < 0) {
+		printf("Error getting device count.\n");
+		exit(EXIT_FAILURE);
+	} else if (numDevices == 0) {
+		printf("There are no available audio devices on this machine.\n");
+		exit(EXIT_SUCCESS);
+	}
+
+	for (int i = 0; i < numDevices; i++) {
+		const PaDeviceInfo *deviceInfo = Pa_GetDeviceInfo(i);
+		struct data *d = (struct data*)malloc(sizeof(struct data));
+		d->device_num = i;
+		button = gtk_button_new_with_label(deviceInfo->name);
+		g_signal_connect(button, "clicked", G_CALLBACK(select_device), d);
+		gtk_grid_attach(GTK_GRID(grid), button, 0, numDevices - i - 1, 1, 1);
+	}
+
+	gtk_widget_queue_draw(grid);
+}
+
+static void close_window(GtkWindow* window)
+{
+	if (stream != NULL) {
+		Pa_StopStream(stream);
+		Pa_CloseStream(stream);
+		stream = NULL;
+	}
+
+	Pa_Terminate();
+
+	gtk_window_destroy(window);
 }
 
 static void activate(GtkApplication *app, gpointer user_data)
@@ -111,34 +147,16 @@ static void activate(GtkApplication *app, gpointer user_data)
 
 	// init audio devices
 	Pa_Initialize();
-	int numDevices = Pa_GetDeviceCount();
-
-	if (numDevices < 0) {
-		printf("Error getting device count.\n");
-		exit(EXIT_FAILURE);
-	} else if (numDevices == 0) {
-		printf("There are no available audio devices on this machine.\n");
-		exit(EXIT_SUCCESS);
-	}
-
-	// init button for every audio device
-	for (int i = 0; i < numDevices; i++) {
-		const PaDeviceInfo *deviceInfo = Pa_GetDeviceInfo(i);
-		struct data *d = malloc(sizeof(struct data));
-		d->device_num = i;
-		button = gtk_button_new_with_label(deviceInfo->name);
-		g_signal_connect(button, "clicked", G_CALLBACK(select_device), d);
-		gtk_grid_attach(GTK_GRID(grid), button, 0, numDevices - i - 1, 1, 1);
-	}
+	refresh(grid);
 
 	// init button for refresh
 	button = gtk_button_new_with_label("Refresh");
-	g_signal_connect_swapped(button, "clicked", G_CALLBACK(refresh), window);
+	g_signal_connect_swapped(button, "clicked", G_CALLBACK(refresh), grid);
 	gtk_grid_attach(GTK_GRID(grid), button, 1, 0, 1, 1);
 
 	// init button for quit
 	button = gtk_button_new_with_label("Quit");
-	g_signal_connect_swapped(button, "clicked", G_CALLBACK(gtk_window_destroy), window);
+	g_signal_connect_swapped(button, "clicked", G_CALLBACK(close_window), window);
 	gtk_grid_attach(GTK_GRID(grid), button, 1, 1, 1, 1);
 
 	// set window