diff -r 000000000000 -r bde4ae8d615e os/graphics/windowing/windowserver/nonnga/SERVER/backedupwindow.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/os/graphics/windowing/windowserver/nonnga/SERVER/backedupwindow.h	Fri Jun 15 03:10:57 2012 +0200
@@ -0,0 +1,65 @@
+// Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+// CWsWindowRedraw and associated classes definitions
+// 
+//
+
+#ifndef __BACKEDUPWINDOW_H__
+#define __BACKEDUPWINDOW_H__
+
+#include "wnredraw.h"
+#include "window.h"
+
+class CWsBackedUpWindow : public CWsWindowRedraw
+	{
+public:
+	static void StaticInitL();
+	static void StaticDestroy();
+public:
+	CWsBackedUpWindow(CWsWindow *aWin, TDisplayMode aDisplayMode);
+	void ConstructL();
+	~CWsBackedUpWindow();
+	TBool CommandL(TInt aOpcode, TWsWinCmdUnion &aCmd);
+	void Resize(const TSize &aSize, const TSize &aOldSize);
+	inline TDisplayMode DisplayMode() const;
+	void PrepareForResizeL(const TSize &aSize, TSize &aOldSize);
+	void DrawWindow();
+	virtual CFbsDevice* OutputDevice() const;
+	virtual TBool DrawCommand(CWsGc*,const TAny*);
+	
+private:
+	void ActivateGc();
+	void SetSizeInTwips();
+	
+	//from CWsWindowRedraw
+	TRgb BackColor() const;
+	TBool NeedsRedraw() const;
+	TBool GetRedrawRect(TRect &aRect) const;
+	CWsBackedUpWindow *Backup() const;
+	void Scroll(const TRect &aClipRect, const TPoint &aOffset,const TRect &aRect);
+	
+private:
+	static CFbsBitGc *iBitGc;
+	TBool iGcActive;
+	CFbsBitmapDevice *iBitmapDevice;
+	CFbsBitmap *iBitmap;
+	TDisplayMode iDisplayMode;
+	};
+
+inline TDisplayMode CWsBackedUpWindow::DisplayMode() const
+	{
+	return iDisplayMode;
+	}
+
+#endif