// 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