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/>.
18 #ifndef __GIS_CALLBACK_H__
19 #define __GIS_CALLBACK_H__
22 #include <glib-object.h>
23 #include "gis-object.h"
26 #define GIS_TYPE_CALLBACK (gis_callback_get_type())
27 #define GIS_CALLBACK(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), GIS_TYPE_CALLBACK, GisCallback))
28 #define GIS_IS_CALLBACK(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), GIS_TYPE_CALLBACK))
29 #define GIS_CALLBACK_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIS_TYPE_CALLBACK, GisCallbackClass))
30 #define GIS_IS_CALLBACK_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIS_TYPE_CALLBACK))
31 #define GIS_CALLBACK_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIS_TYPE_CALLBACK, GisCallbackClass))
33 typedef struct _GisCallback GisCallback;
34 typedef struct _GisCallbackClass GisCallbackClass;
38 * @callback: the callback object to be drawn
39 * @user_data: the user data associated with the callback
41 * A function to be called when the callback object is being rendered
43 typedef void (*GisCallbackFunc)(GisCallback *callback, gpointer user_data);
47 GisCallbackFunc callback;
51 struct _GisCallbackClass {
52 GisObjectClass parent_class;
55 GType gis_callback_get_type(void);
57 GisCallback *gis_callback_new(GisCallbackFunc callback, gpointer user_data);