webengine/webkitutils/stmgesturefw/inc/genericsimplegesture.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 02 Feb 2010 00:56:45 +0200
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/*
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* Copyright (c) 2008 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 the License "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:  Gesture Definitions
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*
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*/
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#ifndef GENERICSIMPLEGESTURE_H_
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#define GENERICSIMPLEGESTURE_H_
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#include <rt_gestureif.h>
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#include <rt_uievent.h>
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namespace stmGesture
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{
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/*!
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 * Class for creating a simple gesture for notifying the listener.
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 * If the basic features are enough for the gesture, then this class
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 * is enough to be instantiated; there is the location and speed
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 * determined from the UI event; also type can be specified as well
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 * as integer detail data.
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 */
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NONSHARABLE_CLASS( TGenericSimpleGesture ): public MGestureIf
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{
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public:
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    TGenericSimpleGesture(
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        TGestureUid uid, const TPoint& loc, int type = 0,
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        const stmUiEventEngine::MUiEventSpeed* speedIf = NULL);
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public: // implementation of MGestureIf
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    TGestureUid gestureUid() const { return m_uid; }
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    void setDetails(int aDetails) { m_details = aDetails;}  // additional info can be passed here.
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    /*!
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     * MGestureIf methods
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     */
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    virtual TPoint getLocation() const  ;  // Location where the gesture happened (if applicable)
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    virtual int getType() const ;         // If the gesture can have different types
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    virtual float getSpeedX() const __SOFTFP
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    {
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        return m_speed ? m_speed->speedX() : 0.f;
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    }
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    virtual float getSpeedY() const __SOFTFP
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    {
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        return m_speed ? m_speed->speedY() : 0.f;
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    }
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    virtual int getDetails() const  ;    // Other possible details....
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    virtual void setName(const TDesC8& aName) ;
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    virtual TPtrC8 getGestureName() ;       // String name for gesture
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public:
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    void setType(int aType)
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        {
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        m_type = aType;
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        }
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protected:
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    TPoint m_location ;
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    TGestureUid m_uid;
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    int m_type ;
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    // What would be the other details?
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    int m_details ;
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    const stmUiEventEngine::MUiEventSpeed* m_speed ;
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    TPtrC8 m_name ;
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};
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NONSHARABLE_CLASS( TDirectionalGesture ): public TGenericSimpleGesture
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{
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public:
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    TDirectionalGesture(
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        TGestureUid uid, const TPoint& loc, const TPoint& prevLoc,
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        const stmUiEventEngine::MUiEventSpeed* speedIf = NULL, bool logging = false);
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    void setVector(const TPoint& last, const TPoint& previous) ;
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    void setLogging(bool enabled) { m_loggingEnabled = enabled; }
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    TPoint getLengthAndDirection() const {return m_vector;}
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    TGestureDirection getDirection() const ;
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    TInt getLength() const
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    {
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        return ((m_vector.iX*m_vector.iX)+(m_vector.iY*m_vector.iY)) ;
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    }
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protected:
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    TPoint m_vector ;
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    bool m_loggingEnabled ;
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};
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NONSHARABLE_CLASS( TTwoPointGesture ): public TDirectionalGesture
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{
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public:
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    TTwoPointGesture(TGestureUid uid, const TPoint& pos1, const TPoint& pos2);
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    TPoint getPinchEndPos() const { return m_location2; }
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private:
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    TPoint m_location2 ;
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};
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} // namespace
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#endif /* GENERICSIMPLEGESTURE_H_ */