/*******************************************************************************

 * Copyright (c) 2008, 2010 Nokia Corporation and/or its subsidiary(-ies).

 * All rights reserved. This program and the accompanying materials

 * are made available under the terms of the Eclipse Public License v1.0

 * which accompanies this distribution, and is available at

 * http://www.eclipse.org/legal/epl-v10.html

 *

 * Contributors:

 *     Nokia Corporation - initial API and implementation

 *******************************************************************************/

#ifndef PALETTEDATAQT_H_

#define PALETTEDATAQT_H_

#include <QByteArray>

#include "graphics.h"

namespace Java { namespace GFX {

/**

 * Helper class for parsing <code>org.eclipse.swt.graphics.PaletteData</code>

 */

class IndexedPaletteDataWrapper : public PaletteDataWrapper

{

public:

    /**

     * Ctor

     */

    IndexedPaletteDataWrapper(QVector<QRgb>& aIndexedRgbData);

    /**

     * Dtor

     */

    virtual ~IndexedPaletteDataWrapper();

    /**

     * @see PaletteDataWrapper::isDirect

     */

    virtual inline bool isDirect()

    {

        return false;

    }

    /**

     * @see PaletteDataWrapper::getDirectData

     */

    virtual inline TDirectData* getDirectData()

    {

        return NULL;

    }

    /**

     * @see PaletteDataWrapper::getIndexedDataCount

     */

    virtual int getIndexedRgbCount()

    {

        return mIndexedRgbData.size();

    }

    virtual QVector<QRgb>* getIndexedPalette()

    {

        return &mIndexedRgbData;

    }

    /**

     * @see PaletteDataWrapper::getIndexedData

     */

    virtual TIndexedRgb getIndexedRgb(int aIndex);

protected:

    /**

     * Copy ctor. not implemented.

     */

    IndexedPaletteDataWrapper(const IndexedPaletteDataWrapper&);

    /**

     * Assignment operator, Not implemented.

     */

    IndexedPaletteDataWrapper& operator=(const IndexedPaletteDataWrapper&);

protected:

    QVector<QRgb> mIndexedRgbData;

};

/**

 * Helper class for parsing <code>org.eclipse.swt.graphics.PaletteData</code>

 */

class DirectPaletteDataWrapper : public PaletteDataWrapper

{

public:

    /**

     * Ctor

     */

    DirectPaletteDataWrapper(PaletteDataWrapper::TDirectData& aDirectData);

    /**

     * Dtor

     */

    virtual ~DirectPaletteDataWrapper();

    /**

     * @see PaletteDataWrapper::isDirect

     */

    virtual inline bool isDirect()

    {

        return true;

    }

    /**

     * @see PaletteDataWrapper::getDirectData

     */

    virtual inline TDirectData* getDirectData()

    {

        return &mDirectData;

    }

    /**

     * @see PaletteDataWrapper::getIndexedDataCount

     */

    virtual inline int getIndexedRgbCount()

    {

        return 0;

    }

    /**

     * @see PaletteDataWrapper::getIndexedData

     */

    virtual inline TIndexedRgb getIndexedRgb(int /*aIndex*/)

    {

        return TIndexedRgb();

    }

    virtual QVector<QRgb>* getIndexedPalette()

    {

        return 0;

    }

    /**

     * Shifts an integer by a certain number of bits.

     * @param value The integer whose bits are to be shifted

     * @param shift The number of bits to shift by; a positive value shifts

     * to the left, a negative value shifts to the right.

     */

    static inline int bitShift(int aValue, int aShift)

    {

        return (aShift >= 0) ? (aValue << aShift) : (aValue >> -aShift);

    }

protected:

    /**

     * Copy ctor. not implemented.

     */

    DirectPaletteDataWrapper(const DirectPaletteDataWrapper&);

    /**

     * Assignment operator, Not implemented.

     */

    DirectPaletteDataWrapper& operator=(const DirectPaletteDataWrapper&);

protected:

    TDirectData mDirectData;

};

} // namespace GFX

} // namespace Java

#endif /*PALETTEDATAQT_H_*/