From 0fdd7d3f7dfa72bc267b2f5c063121d553688444 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20Gr=C3=A4=C3=9Flin?= <mgraesslin@kde.org>
Date: Mon, 24 Jun 2013 08:13:29 +0200
Subject: [PATCH] Resize effect supports QPainter compositing

---
 effects/resize/resize.cpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/effects/resize/resize.cpp b/effects/resize/resize.cpp
index a24e1241f7..86b106f653 100644
--- a/effects/resize/resize.cpp
+++ b/effects/resize/resize.cpp
@@ -30,6 +30,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include <KColorScheme>
 
 #include <QtGui/QVector2D>
+#include <QPainter>
 
 namespace KWin
 {
@@ -118,6 +119,15 @@ void ResizeEffect::paintWindow(EffectWindow* w, int mask, QRegion region, Window
                                            rects.count(), rects.constData());
             }
 #endif
+            if (effects->compositingType() == QPainterCompositing) {
+                QPainter *painter = effects->scenePainter();
+                painter->save();
+                color.setAlphaF(alpha);
+                foreach (const QRect &r, paintRegion.rects()) {
+                    painter->fillRect(r, color);
+                }
+                painter->restore();
+            }
         }
     } else {
         AnimationEffect::paintWindow(w, mask, region, data);