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

**

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

** All rights reserved.

** Contact: Nokia Corporation (developer.feedback@nokia.com)

**

** This file is part of the HbCore module of the UI Extensions for Mobile.

**

** GNU Lesser General Public License Usage

** This file may be used under the terms of the GNU Lesser General Public

** License version 2.1 as published by the Free Software Foundation and

** appearing in the file LICENSE.LGPL included in the packaging of this file.

** Please review the following information to ensure the GNU Lesser General

** Public License version 2.1 requirements will be met:

** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

**

** In addition, as a special exception, Nokia gives you certain additional

** rights.  These rights are described in the Nokia Qt LGPL Exception

** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

**

** If you have questions regarding the use of this file, please contact

** Nokia at developer.feedback@nokia.com.

**

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

#ifndef HB_EFFECT_ANIMATION_P_H

#define HB_EFFECT_ANIMATION_P_H

#include "hbglobal.h"

#include <QVariantAnimation>

class HbEffectFxmlParamData;

class HbEffectGroup;

class HB_AUTOTEST_EXPORT HbEffectAnimation : public QVariantAnimation

{

    Q_OBJECT

public:

    HbEffectAnimation();

    virtual ~HbEffectAnimation();

    void addLooping(const HbEffectFxmlParamData *param, HbEffectGroup *group);

    virtual void handleAnimationUpdate(const QVariant &value) = 0;

    virtual void handleAnimationFinish() = 0;

protected:

    virtual QVariant interpolated(const QVariant &from, const QVariant &to, qreal progress) const;

private:

    void updateCurrentValue(const QVariant &value);

    inline bool looping() const {return mLoopEnd > 0;}

private slots:

    void handleFinished();

public:

    // The curve is stored here instead of setting it to QVariantAnimation so that it uses linear curve always

    // and does not mess up with applying the curve to each keyframe separately.

    QEasingCurve mCurve;

    int mLoopStart;

    int mLoopEnd;

    bool mInactive; // This is used to temporarily prevent the animation from reacting to false update requests

    bool mFinished;

};

#endif // HB_EFFECT_ANIMATION_P_H