1 /* GTK - The GIMP Toolkit
2 * gtkfilechooserembed.h: Abstract sizing interface for file selector implementations
3 * Copyright (C) 2004, Red Hat, Inc.
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.
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.
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the
17 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 * Boston, MA 02111-1307, USA.
22 #include "gtkfilechooserembed.h"
23 #include "gtkmarshalers.h"
27 static void gtk_file_chooser_embed_class_init (gpointer g_iface);
28 static void delegate_get_default_size (GtkFileChooserEmbed *chooser_embed,
30 gint *default_height);
31 static gboolean delegate_should_respond (GtkFileChooserEmbed *chooser_embed);
32 static void delegate_initial_focus (GtkFileChooserEmbed *chooser_embed);
33 static void delegate_default_size_changed (GtkFileChooserEmbed *chooser_embed,
35 static void delegate_response_requested (GtkFileChooserEmbed *chooser_embed,
38 static GtkFileChooserEmbed *
39 get_delegate (GtkFileChooserEmbed *receiver)
41 return g_object_get_data (G_OBJECT (receiver), "gtk-file-chooser-embed-delegate");
45 * _gtk_file_chooser_embed_delegate_iface_init:
46 * @iface: a #GtkFileChoserEmbedIface structure
48 * An interface-initialization function for use in cases where an object is
49 * simply delegating the methods, signals of the #GtkFileChooserEmbed interface
50 * to another object. _gtk_file_chooser_embed_set_delegate() must be called on
51 * each instance of the object so that the delegate object can be found.
54 _gtk_file_chooser_embed_delegate_iface_init (GtkFileChooserEmbedIface *iface)
56 iface->get_default_size = delegate_get_default_size;
57 iface->should_respond = delegate_should_respond;
58 iface->initial_focus = delegate_initial_focus;
62 * _gtk_file_chooser_embed_set_delegate:
63 * @receiver: a GOobject implementing #GtkFileChooserEmbed
64 * @delegate: another GObject implementing #GtkFileChooserEmbed
66 * Establishes that calls on @receiver for #GtkFileChooser methods should be
67 * delegated to @delegate, and that #GtkFileChooser signals emitted on @delegate
68 * should be forwarded to @receiver. Must be used in conjunction with
69 * _gtk_file_chooser_embed_delegate_iface_init().
72 _gtk_file_chooser_embed_set_delegate (GtkFileChooserEmbed *receiver,
73 GtkFileChooserEmbed *delegate)
75 g_return_if_fail (GTK_IS_FILE_CHOOSER_EMBED (receiver));
76 g_return_if_fail (GTK_IS_FILE_CHOOSER_EMBED (delegate));
78 g_object_set_data (G_OBJECT (receiver), I_("gtk-file-chooser-embed-delegate"), delegate);
80 g_signal_connect (delegate, "default-size-changed",
81 G_CALLBACK (delegate_default_size_changed), receiver);
82 g_signal_connect (delegate, "response-requested",
83 G_CALLBACK (delegate_response_requested), receiver);
89 delegate_get_default_size (GtkFileChooserEmbed *chooser_embed,
93 _gtk_file_chooser_embed_get_default_size (get_delegate (chooser_embed), default_width, default_height);
97 delegate_should_respond (GtkFileChooserEmbed *chooser_embed)
99 return _gtk_file_chooser_embed_should_respond (get_delegate (chooser_embed));
103 delegate_initial_focus (GtkFileChooserEmbed *chooser_embed)
105 _gtk_file_chooser_embed_initial_focus (get_delegate (chooser_embed));
109 delegate_default_size_changed (GtkFileChooserEmbed *chooser_embed,
112 g_signal_emit_by_name (data, "default-size-changed");
116 delegate_response_requested (GtkFileChooserEmbed *chooser_embed,
119 g_signal_emit_by_name (data, "response-requested");
123 /* publicly callable functions */
126 _gtk_file_chooser_embed_get_type (void)
128 static GType file_chooser_embed_type = 0;
130 if (!file_chooser_embed_type)
132 const GTypeInfo file_chooser_embed_info =
134 sizeof (GtkFileChooserEmbedIface), /* class_size */
135 NULL, /* base_init */
136 NULL, /* base_finalize */
137 (GClassInitFunc)gtk_file_chooser_embed_class_init, /* class_init */
140 file_chooser_embed_type = g_type_register_static (G_TYPE_INTERFACE,
141 I_("GtkFileChooserEmbed"),
142 &file_chooser_embed_info, 0);
144 g_type_interface_add_prerequisite (file_chooser_embed_type, GTK_TYPE_WIDGET);
147 return file_chooser_embed_type;
151 gtk_file_chooser_embed_class_init (gpointer g_iface)
153 GType iface_type = G_TYPE_FROM_INTERFACE (g_iface);
155 g_signal_new (I_("default-size-changed"),
158 G_STRUCT_OFFSET (GtkFileChooserEmbedIface, default_size_changed),
160 _gtk_marshal_VOID__VOID,
162 g_signal_new (I_("response-requested"),
165 G_STRUCT_OFFSET (GtkFileChooserEmbedIface, response_requested),
167 _gtk_marshal_VOID__VOID,
172 _gtk_file_chooser_embed_get_default_size (GtkFileChooserEmbed *chooser_embed,
174 gint *default_height)
176 g_return_if_fail (GTK_IS_FILE_CHOOSER_EMBED (chooser_embed));
177 g_return_if_fail (default_width != NULL);
178 g_return_if_fail (default_height != NULL);
180 GTK_FILE_CHOOSER_EMBED_GET_IFACE (chooser_embed)->get_default_size (chooser_embed, default_width, default_height);
184 _gtk_file_chooser_embed_should_respond (GtkFileChooserEmbed *chooser_embed)
186 g_return_val_if_fail (GTK_IS_FILE_CHOOSER_EMBED (chooser_embed), FALSE);
188 return GTK_FILE_CHOOSER_EMBED_GET_IFACE (chooser_embed)->should_respond (chooser_embed);
192 _gtk_file_chooser_embed_initial_focus (GtkFileChooserEmbed *chooser_embed)
194 g_return_if_fail (GTK_IS_FILE_CHOOSER_EMBED (chooser_embed));
196 GTK_FILE_CHOOSER_EMBED_GET_IFACE (chooser_embed)->initial_focus (chooser_embed);