diff -r 000000000000 -r bde4ae8d615e os/graphics/windowing/windowserver/nga/SERVER/devicemap.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/os/graphics/windowing/windowserver/nga/SERVER/devicemap.h	Fri Jun 15 03:10:57 2012 +0200
@@ -0,0 +1,64 @@
+// Copyright (c) 2008-2009 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:
+// Class for mapping between twips and device-specific units (pixels).
+// 
+//
+
+
+#ifndef __DEVICEMAP_H__
+#define __DEVICEMAP_H__
+
+#include <e32std.h>
+#include <e32base.h>
+
+class MWsScreenDevice;
+
+class CGraphicsDeviceMap : public CBase
+	{
+public:
+	static CGraphicsDeviceMap* NewL(const MWsScreenDevice& aScreenDevice);
+	
+	TPoint TwipsToPixels(const TPoint& aTwipPoint) const;
+	TRect TwipsToPixels(const TRect& aTwipRect) const;
+	TPoint PixelsToTwips(const TPoint& aPixelPoint) const;
+	TRect PixelsToTwips(const TRect& aPixelRect) const;
+	/** Converts a horizontal dimension from twips to pixels.
+		
+	@param aTwips A horizontal dimension of a device in twips. 
+	@return A horizontal dimension of a device in pixels. */
+	TInt HorizontalTwipsToPixels(TInt aTwips) const;
+
+	/** Converts a vertical dimension from twips to pixels.
+	
+	@param aTwips A vertical dimension of a device in twips. 
+	@return A vertical dimension of a device in pixels. */
+	TInt VerticalTwipsToPixels(TInt aTwips) const;
+
+	/** Converts a horizontal dimension from pixels to twips.
+	
+	@param aPixels A horizontal dimension of a device in pixels. 
+	@return A horizontal dimension of a device in twips. */
+	TInt HorizontalPixelsToTwips(TInt aPixels) const;
+
+	/** Converts a vertical dimension from pixels to twips.
+		
+	@param aPixels A vertical dimension of a device in pixels. 
+	@return A vertical dimension of a device in twips. */
+	TInt VerticalPixelsToTwips(TInt aPixels) const;
+private:
+	CGraphicsDeviceMap(const MWsScreenDevice& aScreenDevice);
+private:
+	const MWsScreenDevice* iScreenDevice;
+	};
+#endif