From 9a08f99958484a653f90bb903524d6f65943abc7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fredrik=20H=C3=B6glund?= <fredrik@kde.org>
Date: Sun, 8 May 2011 11:51:23 +0200
Subject: [PATCH] kwin/blur: Fix a regression from a6bdff71

Subtract the screen-relative contents rect of the window from
the paint region, not the window relative rect.
---
 effects/blur/blur.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/effects/blur/blur.cpp b/effects/blur/blur.cpp
index be13edbacd..11de9fc780 100644
--- a/effects/blur/blur.cpp
+++ b/effects/blur/blur.cpp
@@ -243,7 +243,7 @@ void BlurEffect::prePaintScreen(ScreenPrePaintData &data, int time)
             continue;
 
         if (!window->hasAlpha()) {
-            paint -= window->contentsRect();
+            paint -= window->contentsRect().translated(window->pos());
             if (paint.isEmpty())
                 break;
         }