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#ifndef QSEQUENTIALANIMATIONGROUP_P_H

#define QSEQUENTIALANIMATIONGROUP_P_H

//

//  W A R N I N G

//  -------------

//

// This file is not part of the Qt API.  It exists for the convenience

// of QIODevice. This header file may change from version to

// version without notice, or even be removed.

//

// We mean it.

//

#include "qsequentialanimationgroup.h"

#include "private/qanimationgroup_p.h"

#ifndef QT_NO_ANIMATION

QT_BEGIN_NAMESPACE

class QSequentialAnimationGroupPrivate : public QAnimationGroupPrivate

{

    Q_DECLARE_PUBLIC(QSequentialAnimationGroup)

public:

    QSequentialAnimationGroupPrivate()

        : currentAnimation(0), currentAnimationIndex(-1), lastLoop(0)

    { }

    struct AnimationIndex

    {

        AnimationIndex() : index(0), timeOffset(0) {}

        // index points to the animation at timeOffset, skipping 0 duration animations.

        // Note that the index semantic is slightly different depending on the direction.

        int index; // the index of the animation in timeOffset

        int timeOffset; // time offset when the animation at index starts.

    };

    int animationActualTotalDuration(int index) const;

    AnimationIndex indexForCurrentTime() const;

    void setCurrentAnimation(int index, bool intermediate = false);

    void activateCurrentAnimation(bool intermediate = false);

    void animationInsertedAt(int index);

    bool atEnd() const;

    QAbstractAnimation *currentAnimation;

    int currentAnimationIndex;

    // this is the actual duration of uncontrolled animations

    // it helps seeking and even going forward

    QList<int> actualDuration;

    void restart();

    int lastLoop;

    // handle time changes

    void rewindForwards(const AnimationIndex &newAnimationIndex);

    void advanceForwards(const AnimationIndex &newAnimationIndex);

    // private slot

    void _q_uncontrolledAnimationFinished();

};

QT_END_NAMESPACE

#endif //QT_NO_ANIMATION

#endif //QSEQUENTIALANIMATIONGROUP_P_H