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1 office 1 /* GIO - GLib Input, Output and Streaming Library
2 *
3 * Copyright (C) 2006-2007 Red Hat, Inc.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library 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 GNU
13 * Lesser General Public License for more details.
14 *
15 * You should have received a copy of the GNU Lesser General
16 * Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
17 *
18 * Author: Alexander Larsson <alexl@redhat.com>
19 */
20  
21 #ifndef __G_LOADABLE_ICON_H__
22 #define __G_LOADABLE_ICON_H__
23  
24 #if !defined (__GIO_GIO_H_INSIDE__) && !defined (GIO_COMPILATION)
25 #error "Only <gio/gio.h> can be included directly."
26 #endif
27  
28 #include <gio/giotypes.h>
29  
30 G_BEGIN_DECLS
31  
32 #define G_TYPE_LOADABLE_ICON (g_loadable_icon_get_type ())
33 #define G_LOADABLE_ICON(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), G_TYPE_LOADABLE_ICON, GLoadableIcon))
34 #define G_IS_LOADABLE_ICON(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), G_TYPE_LOADABLE_ICON))
35 #define G_LOADABLE_ICON_GET_IFACE(obj) (G_TYPE_INSTANCE_GET_INTERFACE ((obj), G_TYPE_LOADABLE_ICON, GLoadableIconIface))
36  
37 /**
38 * GLoadableIcon:
39 *
40 * Generic type for all kinds of icons that can be loaded
41 * as a stream.
42 **/
43 typedef struct _GLoadableIconIface GLoadableIconIface;
44  
45 /**
46 * GLoadableIconIface:
47 * @g_iface: The parent interface.
48 * @load: Loads an icon.
49 * @load_async: Loads an icon asynchronously.
50 * @load_finish: Finishes an asynchronous icon load.
51 *
52 * Interface for icons that can be loaded as a stream.
53 **/
54 struct _GLoadableIconIface
55 {
56 GTypeInterface g_iface;
57  
58 /* Virtual Table */
59  
60 GInputStream * (* load) (GLoadableIcon *icon,
61 int size,
62 char **type,
63 GCancellable *cancellable,
64 GError **error);
65 void (* load_async) (GLoadableIcon *icon,
66 int size,
67 GCancellable *cancellable,
68 GAsyncReadyCallback callback,
69 gpointer user_data);
70 GInputStream * (* load_finish) (GLoadableIcon *icon,
71 GAsyncResult *res,
72 char **type,
73 GError **error);
74 };
75  
76 GLIB_AVAILABLE_IN_ALL
77 GType g_loadable_icon_get_type (void) G_GNUC_CONST;
78  
79 GLIB_AVAILABLE_IN_ALL
80 GInputStream *g_loadable_icon_load (GLoadableIcon *icon,
81 int size,
82 char **type,
83 GCancellable *cancellable,
84 GError **error);
85 GLIB_AVAILABLE_IN_ALL
86 void g_loadable_icon_load_async (GLoadableIcon *icon,
87 int size,
88 GCancellable *cancellable,
89 GAsyncReadyCallback callback,
90 gpointer user_data);
91 GLIB_AVAILABLE_IN_ALL
92 GInputStream *g_loadable_icon_load_finish (GLoadableIcon *icon,
93 GAsyncResult *res,
94 char **type,
95 GError **error);
96  
97 G_END_DECLS
98  
99 #endif /* __G_LOADABLE_ICON_H__ */