New private interface to help negotiate the default size of the widget.

Fri Feb 27 18:46:27 2004  Jonathan Blandford  <jrb@redhat.com>

        * gtk/gtkfilechooserembed.h: New private interface to help
        negotiate the default size of the widget.  Still a bit buggy, but
        better than the old behavior.

        * gtk/gtkfilechooserdefault.c: Implement the embed interface.

        * gtk/gtkfilechooserwidget.c: Proxy the embed interface.

        * gtk/gtkfilechooserdialog.c: Use the embed interface.

1 files changed, 163 insertions, 0 deletions

diff --git a/gtk/gtkfilechooserembed.c b/gtk/gtkfilechooserembed.c
new file mode 100644
index 0000000000..89637e3475
--- /dev/null
+++ b/gtk/gtkfilechooserembed.c
@@ -0,0 +1,163 @@
+#include "gtkfilechooserembed.h"
+#include "gtkmarshalers.h"
+
+static void gtk_file_chooser_embed_class_init (gpointer g_iface);
+static void delegate_get_default_size         (GtkFileChooserEmbed *chooser_embed,
+					       gint                *default_width,
+					       gint                *default_height);
+static void delegate_get_resizable_hints      (GtkFileChooserEmbed *chooser_embed,
+					       gboolean            *resize_horizontally,
+					       gboolean            *resize_vertically);
+static void delegate_default_size_changed     (GtkFileChooserEmbed *chooser_embed,
+					       gpointer             data);
+static void delegate_resizable_hints_changed  (GtkFileChooserEmbed *chooser_embed,
+					       gpointer             data);
+
+static GtkFileChooserEmbed *
+get_delegate (GtkFileChooserEmbed *receiver)
+{
+  return g_object_get_data (G_OBJECT (receiver), "gtk-file-chooser-embed-delegate");
+}
+
+/**
+ * _gtk_file_chooser_embed_delegate_iface_init:
+ * @iface: a #GtkFileChoserEmbedIface structure
+ * 
+ * An interface-initialization function for use in cases where an object is
+ * simply delegating the methods, signals of the #GtkFileChooserEmbed interface
+ * to another object.  _gtk_file_chooser_embed_set_delegate() must be called on
+ * each instance of the object so that the delegate object can be found.
+ **/
+void
+_gtk_file_chooser_embed_delegate_iface_init (GtkFileChooserEmbedIface *iface)
+{
+  iface->get_default_size = delegate_get_default_size;
+  iface->get_resizable_hints = delegate_get_resizable_hints;
+}
+
+/**
+ * _gtk_file_chooser_embed_set_delegate:
+ * @receiver: a GOobject implementing #GtkFileChooserEmbed
+ * @delegate: another GObject implementing #GtkFileChooserEmbed
+ *
+ * Establishes that calls on @receiver for #GtkFileChooser methods should be
+ * delegated to @delegate, and that #GtkFileChooser signals emitted on @delegate
+ * should be forwarded to @receiver. Must be used in confunction with
+ * _gtk_file_chooser_delegate_iface_init().
+ **/
+void
+_gtk_file_chooser_embed_set_delegate (GtkFileChooserEmbed *receiver,
+				      GtkFileChooserEmbed *delegate)
+{
+  g_return_if_fail (GTK_IS_FILE_CHOOSER_EMBED (receiver));
+  g_return_if_fail (GTK_IS_FILE_CHOOSER_EMBED (delegate));
+  
+  g_object_set_data (G_OBJECT (receiver), "gtk-file-chooser-embed-delegate", delegate);
+
+  g_signal_connect (delegate, "default_size_changed",
+		    G_CALLBACK (delegate_default_size_changed), receiver);
+  g_signal_connect (delegate, "resizable_hints_changed",
+		    G_CALLBACK (delegate_resizable_hints_changed), receiver);
+}
+
+
+
+static void
+delegate_get_default_size (GtkFileChooserEmbed *chooser_embed,
+			   gint                *default_width,
+			   gint                *default_height)
+{
+  _gtk_file_chooser_embed_get_default_size (get_delegate (chooser_embed), default_width, default_height);
+}
+     
+static void
+delegate_get_resizable_hints (GtkFileChooserEmbed *chooser_embed,
+			      gboolean            *resize_horizontally,
+			      gboolean            *resize_vertically)
+{
+  _gtk_file_chooser_embed_get_resizable_hints (get_delegate (chooser_embed), resize_horizontally, resize_vertically);
+}
+
+static void
+delegate_default_size_changed (GtkFileChooserEmbed *chooser_embed,
+			       gpointer             data)
+{
+  g_signal_emit_by_name (data, "default-size-changed");
+}
+
+static void
+delegate_resizable_hints_changed (GtkFileChooserEmbed *chooser_embed,
+				  gpointer             data)
+{
+  g_signal_emit_by_name (data, "resizable-hints-changed");
+}
+
+
+/* publicly callable functions */
+
+GType
+_gtk_file_chooser_embed_get_type (void)
+{
+  static GType file_chooser_embed_type = 0;
+
+  if (!file_chooser_embed_type)
+    {
+      static const GTypeInfo file_chooser_embed_info =
+      {
+	sizeof (GtkFileChooserEmbedIface),  /* class_size */
+	NULL,                          /* base_init */
+	NULL,			       /* base_finalize */
+	(GClassInitFunc)gtk_file_chooser_embed_class_init, /* class_init */
+      };
+
+      file_chooser_embed_type = g_type_register_static (G_TYPE_INTERFACE,
+							"GtkFileChooserEmbed",
+							&file_chooser_embed_info, 0);
+
+      g_type_interface_add_prerequisite (file_chooser_embed_type, GTK_TYPE_WIDGET);
+    }
+
+  return file_chooser_embed_type;
+}
+
+static void
+gtk_file_chooser_embed_class_init (gpointer g_iface)
+{
+  GType iface_type = G_TYPE_FROM_INTERFACE (g_iface);
+
+  g_signal_new ("default-size-changed",
+		iface_type,
+		G_SIGNAL_RUN_LAST,
+		G_STRUCT_OFFSET (GtkFileChooserEmbedIface, default_size_changed),
+		NULL, NULL,
+		_gtk_marshal_VOID__VOID,
+		G_TYPE_NONE, 0);
+  g_signal_new ("resizable-hints-changed",
+		iface_type,
+		G_SIGNAL_RUN_LAST,
+		G_STRUCT_OFFSET (GtkFileChooserEmbedIface, resizable_hints_changed),
+		NULL, NULL,
+		_gtk_marshal_VOID__VOID,
+		G_TYPE_NONE, 0);
+}
+
+void
+_gtk_file_chooser_embed_get_default_size (GtkFileChooserEmbed *chooser_embed,
+					 gint                *default_width,
+					 gint                *default_height)
+{
+  g_return_if_fail (GTK_IS_FILE_CHOOSER_EMBED (chooser_embed));
+
+  GTK_FILE_CHOOSER_EMBED_GET_IFACE (chooser_embed)->get_default_size (chooser_embed, default_width, default_height);
+}
+
+void
+_gtk_file_chooser_embed_get_resizable_hints (GtkFileChooserEmbed *chooser_embed,
+					    gboolean            *resize_horizontally,
+					    gboolean            *resize_vertically)
+{
+  g_return_if_fail (GTK_IS_FILE_CHOOSER_EMBED (chooser_embed));
+
+  GTK_FILE_CHOOSER_EMBED_GET_IFACE (chooser_embed)->get_resizable_hints (chooser_embed, resize_horizontally, resize_vertically);
+}
+