From 7d43fb0c10726be005325a4b5c79b3d7f7722c37 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Morten=20Johan=20S=C3=B8rvig?= <morten.sorvig@digia.com>
Date: Wed, 11 Mar 2015 13:03:43 +0100
Subject: Clear backingstore for windows with alpha channel.

Fixes painting artifacts in translucent windows.

Change-Id: I89c198e5636c5387e67ad8839d32dffdc0a149cb
Task-number: QTBUG-43017
Reviewed-by: Gunnar Sletta <gunnar@sletta.org>
Reviewed-by: Shawn Rutledge <shawn.rutledge@digia.com>
---
 src/plugins/platforms/cocoa/qcocoabackingstore.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'src/plugins/platforms/cocoa/qcocoabackingstore.h')

diff --git a/src/plugins/platforms/cocoa/qcocoabackingstore.h b/src/plugins/platforms/cocoa/qcocoabackingstore.h
index d012ede5f9..3737584c4c 100644
--- a/src/plugins/platforms/cocoa/qcocoabackingstore.h
+++ b/src/plugins/platforms/cocoa/qcocoabackingstore.h
@@ -54,6 +54,7 @@ public:
     QImage toImage() const;
     void resize (const QSize &size, const QRegion &);
     bool scroll(const QRegion &area, int dx, int dy);
+    void beginPaint(const QRegion &region);
     qreal getBackingStoreDevicePixelRatio();
 
 private:
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