gtk2/tests/testvolumebutton.c

/* testvolumebutton.c
 * Copyright (C) 2007  Red Hat, Inc.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */

#include <gtk/gtk.h>

static void
value_changed (GtkWidget *button,
	       gdouble volume,
	       gpointer user_data)
{
	g_message ("volume changed to %f", volume);
}

static void
response_cb (GtkDialog *dialog,
	     gint       arg1,
	     gpointer   user_data)
{
	gtk_widget_destroy (GTK_WIDGET (dialog));
}

static gboolean
show_error (gpointer data)
{
	GtkWindow *window = (GtkWindow *) data;
	GtkWidget *dialog;

	g_message ("showing error");

	dialog = gtk_message_dialog_new (window,
					 GTK_DIALOG_MODAL,
					 GTK_MESSAGE_INFO,
					 GTK_BUTTONS_CLOSE,
					 "This should have unbroken the grab");
	g_signal_connect (G_OBJECT (dialog),
			  "response",
			  G_CALLBACK (response_cb), NULL);
	gtk_widget_show (dialog);

	return FALSE;
}

int main (int argc, char **argv)
{
	GtkWidget *window;
	GtkWidget *button;
	GtkWidget *button2;
	GtkWidget *box;

	gtk_init (&argc, &argv);

	window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
	button = gtk_volume_button_new ();
	button2 = gtk_volume_button_new ();
 	box = gtk_hbox_new (FALSE, 0);      
  
	g_signal_connect (G_OBJECT (button),
			  "value-changed",
			  G_CALLBACK (value_changed), NULL);
	gtk_container_add (GTK_CONTAINER (window), box);
	gtk_container_add (GTK_CONTAINER (box), button);
	gtk_container_add (GTK_CONTAINER (box), button2);

	gtk_widget_show_all (window);
	gtk_button_clicked (GTK_BUTTON (button));
	g_timeout_add (4000, (GSourceFunc) show_error, window);

	gtk_main ();

	return 0;
}