[gtk+/layered-windows: 8/10] gdk: Fix repaint of layered region during raise

[Alexander Larsson <alexl src gnome org>]

commit 80a363adf880870372da29ac248411a3579efd50
Author: Alexander Larsson <alexl redhat com>
Date:   Thu Dec 1 16:44:51 2011 +0100

    gdk: Fix repaint of layered region during raise

 gdk/gdkwindow.c |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)
---
diff --git a/gdk/gdkwindow.c b/gdk/gdkwindow.c
index f37eb2e..0f53f23 100644
--- a/gdk/gdkwindow.c
+++ b/gdk/gdkwindow.c
@@ -5293,7 +5293,11 @@ gdk_window_raise (GdkWindow *window)
   old_region = NULL;
   if (gdk_window_is_viewable (window) &&
       !window->input_only)
-    old_region = cairo_region_copy (window->clip_region);
+    {
+      old_region = cairo_region_copy (window->clip_region);
+      /* Don't keep old region if it was layered */
+      cairo_region_subtract (old_region, window->layered_region);
+    }
 
   /* Keep children in (reverse) stacking order */
   gdk_window_raise_internal (window);