1 /*

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

     3 * All rights reserved.

     4 *

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

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

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

     8 * 

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

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

    11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    12 * GNU Lesser General Public License for more details.

    13 *

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

    15 * along with this program.  If not, 

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

    17 *

    18 * Description:

    19 *

    20 */

    21 

    22 #ifndef QSTMMAYBETAPGESTURERECOGNISER_H_

    23 #define QSTMAYBEMTAPGESTURERECOGNISER_H_

    24 

    25 #include <qstmgestureengine_if.h>

    26 #include <qstmgesture_if.h>

    27 #include <qstmgesturelistener_if.h>

    28 #include "uitimer.h"

    29 

    30 namespace qstmGesture

    31 {

    32 

    33 class QStm_MaybeTapGestureRecogniser : public QStm_GestureRecogniser

    34 {

    35 	Q_OBJECT

    36 public:

    37     static const QStm_GestureUid KUid = EGestureUidMaybeTap;

    38 

    39     virtual ~QStm_MaybeTapGestureRecogniser();

    40 

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

    42     virtual void release(QStm_GestureEngineIf* ge) ;

    43     virtual void enable(bool enabled) ;

    44     virtual bool isEnabled() ;

    45     virtual void setOwner(void* owner) ;

    46 

    47     virtual QStm_GestureUid gestureUid() const { return KUid; }

    48 

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

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

    51     virtual void enableLogging(bool loggingOn) ;

    52     void setTapRange(int rangeInMillimetres);

    53     QStm_MaybeTapGestureRecogniser(QStm_GestureListenerIf* listener) ;

    54     

    55 private:

    56     bool m_loggingenabled ;

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

    58 private:

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

    60 

    61     QPoint m_firstTapXY ;

    62     void* m_firstTapTarget ;

    63     float m_firstTapSpeed ;

    64     bool m_gestureEnabled ;

    65     int  m_rangesizeInPixels ;

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

    67     QList<QStm_GestureListenerIf*>  m_tapListeners ;

    68     QList<void*>                    m_tapListenerWindows ;

    69     int                             m_numOfActiveStreams;

    70 };

    71 

    72 } // namespace

    73 

    74 #endif /* QSTMTAPGESTURERECOGNISER_H_ */