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#ifndef QABSTRACTANIMATION_P_H
#define QABSTRACTANIMATION_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 <QtCore/qbasictimer.h>
#include <QtCore/qdatetime.h>
#include <QtCore/qtimer.h>
#include <private/qobject_p.h>

#ifndef QT_NO_ANIMATION

QT_BEGIN_NAMESPACE

class QAnimationGroup;
class QAbstractAnimation;
class QAbstractAnimationPrivate : public QObjectPrivate
{
public:
    QAbstractAnimationPrivate()
        : state(QAbstractAnimation::Stopped),
          direction(QAbstractAnimation::Forward),
          deleteWhenStopped(false),
          totalCurrentTime(0),
          currentTime(0),
          loopCount(1),
          currentLoop(0),
          hasRegisteredTimer(false),
          group(0)
    {
    }

    virtual ~QAbstractAnimationPrivate() {}

    static QAbstractAnimationPrivate *get(QAbstractAnimation *q)
    {
        return q->d_func();
    }

    QAbstractAnimation::State state;
    QAbstractAnimation::Direction direction;
    bool deleteWhenStopped;
    void setState(QAbstractAnimation::State state);

    int totalCurrentTime;
    int currentTime;
    int loopCount;
    int currentLoop;

    bool hasRegisteredTimer;

    QAnimationGroup *group;

private:
    Q_DECLARE_PUBLIC(QAbstractAnimation)
};


class QUnifiedTimer : public QObject
{
private:
    QUnifiedTimer();

public:
    //XXX this is needed by dui
    static Q_CORE_EXPORT QUnifiedTimer *instance();

    void registerAnimation(QAbstractAnimation *animation);
    void unregisterAnimation(QAbstractAnimation *animation);

    //defines the timing interval. Default is DEFAULT_TIMER_INTERVAL
    void setTimingInterval(int interval)
    {
        timingInterval = interval;
        if (animationTimer.isActive()) {
            //we changed the timing interval
            animationTimer.start(timingInterval, this);
        }
    }

    /*
       this allows to have a consistent timer interval at each tick from the timer
       not taking the real time that passed into account.
    */
    void setConsistentTiming(bool consistent) { consistentTiming = consistent; }

    int elapsedTime() const { return lastTick; }

protected:
    void timerEvent(QTimerEvent *);

private:
    // timer used for all active animations
    QBasicTimer animationTimer;
    // timer used to delay the check if we should start/stop the global timer
    QBasicTimer startStopAnimationTimer;
    QTime time;
    int lastTick;
    int timingInterval;
    int currentAnimationIdx;
    bool consistentTiming;
    QList<QAbstractAnimation*> animations, animationsToStart;
};

QT_END_NAMESPACE

#endif //QT_NO_ANIMATION

#endif //QABSTRACTANIMATION_P_H