[gtk+] Use G_DEFINE_INTERFACE macro in gtkactivatable

[Javier Jardón <jjardon src gnome org>]

commit 45e217668377cfb8bb0de23edf8c66549ec1b634
Author: Javier Jardón <jjardon gnome org>
Date:   Wed Apr 14 03:35:30 2010 +0200

    Use G_DEFINE_INTERFACE macro in gtkactivatable
    
    https://bugzilla.gnome.org/show_bug.cgi?id=605186

 gtk/gtkactivatable.c |   27 +++++----------------------
 1 files changed, 5 insertions(+), 22 deletions(-)
---
diff --git a/gtk/gtkactivatable.c b/gtk/gtkactivatable.c
index 77b019b..5f2bbea 100644
--- a/gtk/gtkactivatable.c
+++ b/gtk/gtkactivatable.c
@@ -268,28 +268,11 @@
 #include "gtkintl.h"
 
 
-static void gtk_activatable_class_init (gpointer g_iface);
-
-GType
-gtk_activatable_get_type (void)
-{
-  static GType activatable_type = 0;
-
-  if (!activatable_type) {
-    activatable_type =
-      g_type_register_static_simple (G_TYPE_INTERFACE, I_("GtkActivatable"),
-				     sizeof (GtkActivatableIface),
-				     (GClassInitFunc) gtk_activatable_class_init,
-				     0, NULL, 0);
-
-    g_type_interface_add_prerequisite (activatable_type, G_TYPE_OBJECT);
-  }
-
-  return activatable_type;
-}
+typedef GtkActivatableIface GtkActivatableInterface;
+G_DEFINE_INTERFACE (GtkActivatable, gtk_activatable, G_TYPE_OBJECT)
 
 static void
-gtk_activatable_class_init (gpointer g_iface)
+gtk_activatable_default_init (GtkActivatableInterface *iface)
 {
   /**
    * GtkActivatable:related-action:
@@ -302,7 +285,7 @@ gtk_activatable_class_init (gpointer g_iface)
    *
    * Since: 2.16
    */
-  g_object_interface_install_property (g_iface,
+  g_object_interface_install_property (iface,
 				       g_param_spec_object ("related-action",
 							    P_("Related Action"),
 							    P_("The action this activatable will activate and receive updates from"),
@@ -325,7 +308,7 @@ gtk_activatable_class_init (gpointer g_iface)
    *
    * Since: 2.16
    */
-  g_object_interface_install_property (g_iface,
+  g_object_interface_install_property (iface,
 				       g_param_spec_boolean ("use-action-appearance",
 							     P_("Use Action Appearance"),
 							     P_("Whether to use the related actions appearance properties"),