1 /* scherzo - Music notation training
3 * Copyright © 2010 Carl Worth
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, either version 3 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see http://www.gnu.org/licenses/ .
21 #define unused(foo) foo __attribute__((unused))
24 on_delete_event_quit (unused (GtkWidget *widget),
25 unused (GdkEvent *event),
26 unused (gpointer user_data))
30 /* Returning FALSE allows the default handler for delete-event
31 * to proceed to cleanup the widget. */
36 on_expose_event_draw (GtkWidget *widget,
37 unused (GdkEventExpose *event),
38 unused (gpointer user_data))
41 GtkAllocation allocation;
43 gtk_widget_get_allocation (widget, &allocation);
45 cr = gdk_cairo_create (widget->window);
47 /* Paint in medium sea green */
48 cairo_set_source_rgb (cr, 60/255.0, 179/255.0, 113/255.0);
56 main (int argc, char *argv[])
59 GtkWidget *drawing_area;
61 gtk_init (&argc, &argv);
63 window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
65 gtk_window_set_default_size (GTK_WINDOW (window), 600, 400);
67 g_signal_connect (window, "delete-event",
68 G_CALLBACK (on_delete_event_quit), NULL);
70 drawing_area = gtk_drawing_area_new ();
72 gtk_container_add (GTK_CONTAINER (window), drawing_area);
74 g_signal_connect (drawing_area, "expose-event",
75 G_CALLBACK (on_expose_event_draw), NULL);
78 gtk_widget_show_all (window);