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

#ifndef QGESTURERECOGNIZER_H

#define QGESTURERECOGNIZER_H

#include <QtCore/qglobal.h>

#include <QtCore/qnamespace.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Gui)

class QObject;

class QEvent;

class QGesture;

class Q_GUI_EXPORT QGestureRecognizer

{

public:

    enum ResultFlag

    {

        Ignore           = 0x0001,

        MayBeGesture     = 0x0002,

        TriggerGesture   = 0x0004,

        FinishGesture    = 0x0008,

        CancelGesture    = 0x0010,

        ResultState_Mask = 0x00ff,

        ConsumeEventHint        = 0x0100,

        // StoreEventHint          = 0x0200,

        // ReplayStoredEventsHint  = 0x0400,

        // DiscardStoredEventsHint = 0x0800,

        ResultHint_Mask = 0xff00

    };

    Q_DECLARE_FLAGS(Result, ResultFlag)

    QGestureRecognizer();

    virtual ~QGestureRecognizer();

    virtual QGesture *create(QObject *target);

    virtual Result recognize(QGesture *state, QObject *watched,

                             QEvent *event) = 0;

    virtual void reset(QGesture *state);

    static Qt::GestureType registerRecognizer(QGestureRecognizer *recognizer);

    static void unregisterRecognizer(Qt::GestureType type);

};

Q_DECLARE_OPERATORS_FOR_FLAGS(QGestureRecognizer::Result)

QT_END_NAMESPACE

QT_END_HEADER

#endif // QGESTURERECOGNIZER_H