/*

* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

*

* This program is free software: you can redistribute it and/or modify

* it under the terms of the GNU Lesser General Public License as published by

* the Free Software Foundation, version 2.1 of the License.

* 

* This program is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

* GNU Lesser General Public License for more details.

*

* You should have received a copy of the GNU Lesser General Public License

* along with this program.  If not, 

* see "http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html/".

*

* Description:

*

*/

#ifndef QSTMMAYBETAPGESTURERECOGNISER_H_

#define QSTMAYBEMTAPGESTURERECOGNISER_H_

#include <qstmgestureengine_if.h>

#include <qstmgesture_if.h>

#include <qstmgesturelistener_if.h>

#include "uitimer.h"

namespace qstmGesture

{

class QStm_MaybeTapGestureRecogniser : public QStm_GestureRecogniser

{

	Q_OBJECT

public:

    static const QStm_GestureUid KUid = EGestureUidMaybeTap;

    virtual ~QStm_MaybeTapGestureRecogniser();

    virtual QStm_GestureRecognitionState recognise(int numOfActiveStreams, QStm_GestureEngineIf* ge) ;

    virtual void release(QStm_GestureEngineIf* ge) ;

    virtual void enable(bool enabled) ;

    virtual bool isEnabled() ;

    virtual void setOwner(void* owner) ;

    virtual QStm_GestureUid gestureUid() const { return KUid; }

    void addTapListener(QStm_GestureListenerIf* listener, void* listenerOwner) ;

    void removeTapListener(QStm_GestureListenerIf* listener, void* listenerOwner) ;

    virtual void enableLogging(bool loggingOn) ;

    void setTapRange(int rangeInMillimetres);

    QStm_MaybeTapGestureRecogniser(QStm_GestureListenerIf* listener) ;

private:

    bool m_loggingenabled ;

    bool isPointClose(const QPoint& firstPoint, const QPoint& secondPoint) ;

private:

    void* m_powner ; // The owning control for this gesture

    QPoint m_firstTapXY ;

    void* m_firstTapTarget ;

    float m_firstTapSpeed ;

    bool m_gestureEnabled ;

    int  m_rangesizeInPixels ;

    // use simple arrays to store the listeners and corresponding windows

    QList<QStm_GestureListenerIf*>  m_tapListeners ;

    QList<void*>                    m_tapListenerWindows ;

    int                             m_numOfActiveStreams;

};

} // namespace

#endif /* QSTMTAPGESTURERECOGNISER_H_ */