2 * Copyright (C) 2009-2010 Andy Spencer <andy753421@gmail.com>
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
19 * SECTION:gis-callback
20 * @short_description: Custom callback objects
22 * #GisCallback objects are used for custom drawing functions. A common example
23 * of this would be to render something which does not easily fit into a normal
24 * object. For instance, a Heads-Up-Display overlay.
28 #include "gis-callback.h"
31 G_DEFINE_TYPE(GisCallback, gis_callback, GIS_TYPE_OBJECT);
32 static void gis_callback_init(GisCallback *cb)
36 static void gis_callback_class_init(GisCallbackClass *klass)
42 * @callback: the function to call to draw the object
43 * @user_data: user data to pass to the drawing function
45 * Create a #GisCallback object with an associated function and user data.
47 * Returns: the new #GisCallback
49 GisCallback *gis_callback_new(GisCallbackFunc callback, gpointer user_data)
51 GisCallback *cb = g_object_new(GIS_TYPE_CALLBACK, NULL);
52 cb->callback = callback;
53 cb->user_data = user_data;