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#ifndef SCROLLER_P_H

#define SCROLLER_P_H

//

//  W A R N I N G

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

//

// This file is not part of the Qt API.  It exists purely as an

// implementation detail.  This header file may change from version to

// version without notice, or even be removed.

//

// We mean it.

//

#include <QPoint>

#include <QTimer>

#include <QTime>

#include "scroller.h"

class AbstractScrollArea;

class ScrollerPrivate

{

    Q_DECLARE_PUBLIC(Scroller)

public:

    enum State  {

        Stopped,

        Started,

        ManualScrolling,

        AutoScrolling

    };

    ScrollerPrivate(Scroller *scroller);

    ~ScrollerPrivate();

    void stopScrolling();

    bool eventFilter(QObject *obj, QEvent *ev);

    AbstractScrollArea *m_scrollArea;

    qreal m_scrollFactor;

    QPoint m_cursorPos;

    QPointF m_speed;

    State m_state;

    QTime m_lastCursorTime;

    QTime m_lastFrameTime;

    QTimer m_scrollTimer;

    int m_scrollSlowAccum;

private Q_SLOTS:

    void updateScrolling();

private:

    Q_DISABLE_COPY(ScrollerPrivate)

    Scroller * const q_ptr;

    QPointF mapToScrollArea(const QPoint &point);

    QWidget *m_eventViewport;

};

#endif // SCROLLER_P_H