/****************************************************************************
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** Foundation and appearing in the file LICENSE.LGPL included in the
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****************************************************************************/

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists for the convenience
// of other Qt classes.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//

#ifndef QMULTITOUCH_MAC_P_H
#define QMULTITOUCH_MAC_P_H

#ifdef QT_MAC_USE_COCOA
#import <Cocoa/Cocoa.h>
#endif

#include <qevent.h>
#include <qhash.h>
#include <QtCore>

#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_6

QT_BEGIN_NAMESPACE

#ifdef QT_MAC_USE_COCOA

class QCocoaTouch
{
    public:
        static QList<QTouchEvent::TouchPoint> getCurrentTouchPointList(NSEvent *event, bool acceptSingleTouch);
        static void setMouseInDraggingState(bool inDraggingState);

    private:
        static QHash<qint64, QCocoaTouch*> _currentTouches;
        static QPointF _screenReferencePos;
        static QPointF _trackpadReferencePos;
        static int _idAssignmentCount;
        static int _touchCount;
        static bool _updateInternalStateOnly;

        QTouchEvent::TouchPoint _touchPoint;
        qint64 _identity;

        QCocoaTouch(NSTouch *nstouch);
        ~QCocoaTouch();

        void updateTouchData(NSTouch *nstouch, NSTouchPhase phase);
        static QCocoaTouch *findQCocoaTouch(NSTouch *nstouch);
        static Qt::TouchPointState toTouchPointState(NSTouchPhase nsState);
};

#endif // QT_MAC_USE_COCOA

QT_END_NAMESPACE

#endif // MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_6

#endif // QMULTITOUCH_MAC_P_H

