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 2.1 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__ */ 100