Abstract some GdkWindow API into an interface that the backends must

2008-06-27  Emmanuele Bassi  <ebassi@gnome.org>

	Abstract some GdkWindow API into an interface that the backends
	must implement. (based on a patch by Alex Larsson)

	* gdk/Makefile.am: Add gdkwindowimpl.[ch]

	* gdk/gdk.symbols: Move symbols around.

	* gdk/gdkinternals.h:
	* gdk/gdkwindowimpl.[ch]: Move some of the GdkWindow API we require
	from the backends to a GInterface that the backends should implement
	instead.

	* gdk/gdkwindow.c: Provide some of the GdkWindow public API as a
	wrapper call around the GdkWindowImpl interface vtable.

	* gdk/x11/gdkevents-x11.c:
	* gdk/x11/gdkgeometry-x11.c:
	* gdk/x11/gdkprivate-x11.h:
	* gdk/x11/gdkwindow-x11.c:
	* gdk/x11/gdkwindow-x11.h: Update the X11 backend to implement
	the GdkWindowImpl interface.

svn path=/trunk/; revision=20695

1 files changed, 46 insertions, 0 deletions

diff --git a/gdk/gdkwindowimpl.c b/gdk/gdkwindowimpl.c
new file mode 100644
index 0000000000..22f59e0b41
--- /dev/null
+++ b/gdk/gdkwindowimpl.c
@@ -0,0 +1,46 @@
+/* GDK - The GIMP Drawing Kit
+ * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+/*
+ * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
+ * file for a list of people on the GTK+ Team.  See the ChangeLog
+ * files for a list of changes.  These files are distributed with
+ * GTK+ at ftp://ftp.gtk.org/pub/gtk/. 
+ */
+
+#include "config.h"
+#include "gdkwindowimpl.h"
+#include "gdkinternals.h"
+
+GType
+gdk_window_impl_get_type (void)
+{
+  static GType gtype = 0;
+
+  if (G_UNLIKELY (!gtype))
+    {
+      gtype = g_type_register_static_simple (G_TYPE_INTERFACE,
+                                             "GdkWindowImpl",
+                                             sizeof (GdkWindowImplIface),
+                                             NULL, 0, NULL, 0);
+      g_type_interface_add_prerequisite (gtype, G_TYPE_OBJECT);
+    }
+
+  return gtype;
+}