/*

* Copyright (c) 2005 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:

*

*/

#ifndef LCDTRANSFORM_H

#define LCDTRANSFORM_H

#include <gdi.h>

#include <lcdgdrv.h>

/**

 * Simple symmetry group + translation transformation.

 *

 *@internal

 */

class TLcdTransform

{

public:

    IMPORT_C TPoint operator()(const TPoint&) const;

    IMPORT_C TLcdTransform operator*(const TLcdTransform& aTransform) const;

    IMPORT_C TBool operator == (const TLcdTransform&) const;

    IMPORT_C TLcdTransform Inverse() const;

    TInt iDuDx;

    TInt iDuDy;

    TInt iDvDx;

    TInt iDvDy;

    TInt iU0;

    TInt iV0;

};

/**

 * Construct transform for given transform type.

 */

IMPORT_C TLcdTransform Transform(TTransformType aType, const TSize& aSize);

/**

 * Construct identity transformation.

 */

IMPORT_C TLcdTransform Identity();

/**

 * Construct vertical reflection.

 *

 * Maps from source (image) coords to destination (graphics) coords.

 */

IMPORT_C TLcdTransform ReflectVert(const TSize& aSize);

/**

 * Construct horizontal reflection.

 *

 * Maps from source (image) coords to destination (graphics) coords.

 */

IMPORT_C TLcdTransform ReflectHorz(const TSize& aSize);

/**

 * Construct diagonal reflection.

 *

 * Maps from source (image) coords to destination (graphics) coords.

 */

IMPORT_C TLcdTransform ReflectDiag();

/**

 * Construct translation.

 *

 * Maps from source (image) coords to destination (graphics) coords.

 *

 */

IMPORT_C TLcdTransform Translate(const TPoint& aPoint);

#endif // LCDTRANSFORM_H