From 402ea463323ebfd07ed336644bd1964c3b52736a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lubo=C5=A1=20Lu=C5=88=C3=A1k?= <l.lunak@kde.org>
Date: Wed, 1 Oct 2008 11:53:48 +0000
Subject: [PATCH] Avoid drawing corruptions caused by window geometry and shape
 being out of sync (bnc#430472).

svn path=/trunk/KDE/kdebase/workspace/; revision=866586
---
 scene.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/scene.cpp b/scene.cpp
index ea16c5b7e4..04b844768f 100644
--- a/scene.cpp
+++ b/scene.cpp
@@ -383,6 +383,8 @@ QRegion Scene::Window::shape() const
                     shape_region += QRegion( rects[ i ].x, rects[ i ].y,
                         rects[ i ].width, rects[ i ].height );
                 XFree(rects);
+                // make sure the shape is sane (X is async, maybe even XShape is broken)
+                shape_region &= QRegion( 0, 0, width(), height());
                 }
             else
                 shape_region = QRegion();