/*

* Copyright (c) 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: 

*

*/

#ifndef __TNENGINESCALER_H__

#define __TNENGINESCALER_H__

#include <QObject>

#include <QPixmap>

namespace WRT {

class MTnEngineScalerCallback : public QObject

{

public:

    virtual void scalingCompleted(QPixmap& result, const QRect& targetRect) = 0;

};

class TnEngineScaler : public QObject

{

Q_OBJECT

public:

    static TnEngineScaler* initWithCallback(MTnEngineScalerCallback& callback);

    virtual ~TnEngineScaler();

public: // New functions

    void startScaling(QPixmap& source, const QRect& targetRect);

    bool isActive();

public slots:

    void run();

public:

    void cancel();

private:

    TnEngineScaler(MTnEngineScalerCallback& callback);

    void init();

    void deleteResultBitmap();

private:    // Data

    MTnEngineScalerCallback* m_callback;

    QPixmap* m_resultBitmap;

    QRect m_targetRect;

    QTimer* m_scalingTimer;

};

}

#endif // __TNENGINESCALER_H__

// End of File