qstmgesturelib/recognisers/qstmedgescrollgesturerecogniser.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 04 May 2010 12:39:35 +0300
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/*
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* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description: 
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*
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*/
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#ifndef QSTMEDGESCROLLGESTURERECOGNISER_H_
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#define QSTMEDGESCROLLGESTURERECOGNISER_H_
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#include <qstmgestureengine_if.h>
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#include <qstmgesture_if.h>
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#include <qstmgesturelistener_if.h>
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namespace qstmGesture
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{
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/*!
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 * QStm_EdgeScrollGestureRecogniser handles edge scroll gesture: Hold event near the edges of the window
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 *
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 */
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class QStm_EdgeScrollGestureRecogniser : public QObject, public QStm_GestureRecogniser
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{
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public:
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    static const QStm_GestureUid KUid = EGestureUidEdgeScroll;
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    QStm_EdgeScrollGestureRecogniser(QStm_GestureListenerIf* listener) ;
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    virtual ~QStm_EdgeScrollGestureRecogniser();
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    virtual QStm_GestureRecognitionState recognise(int numOfActiveStreams, QStm_GestureEngineIf* ge) ;
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    virtual void release(QStm_GestureEngineIf* ge) ;
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    virtual void enable(bool enabled) ;
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    virtual bool isEnabled() ;
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    virtual void setOwner(void* owner) ;
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    virtual QStm_GestureUid gestureUid() const { return KUid; }
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    void setArea(const QRect& theArea)  ;
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    /*!
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     * Define how close to the border the Hold UI event must be
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     * \param rangeInPixels
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     */
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    void setScrollRange(int rangeInPixels) ;
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    /*!
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     * for testing purposes we need to log the stuff somewhere...
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     */
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    virtual void enableLogging(bool loggingOn) ;
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    /*!
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     * The timer function to handle timeout for generating scroll events
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     */
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private:
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    bool      m_loggingenabled ;
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    void*     m_powner ; // The owning control for this gesture
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    QStm_GestureListenerIf* m_listener ;
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    bool      m_waitingforsecondtap ;
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    QRect     m_area ;
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    bool      m_gestureEnabled ;
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    int       m_rangesizeInPixels ;
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};
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} // namespace
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#endif /* QSTMEDGESCROLLGESTURERECOGNISER_H_ */