GUIMultitouchBehaviour.h

/*
* Copyright (C) TES Electronic Solutions GmbH,
* All Rights Reserved.
* Contact: info@guiliani.de
*
* This file is part of the Guiliani HMI framework
* for the development of graphical user interfaces on embedded systems.
*/
 
#ifndef __GUI_MULTITOUCH_BEHAVIOUR_H__
#define __GUI_MULTITOUCH_BEHAVIOUR_H__
 
#include "GUIBehaviourDecorator.h"
#include "GUIObjectHandleResource.h"
 
class CGUIMultitouchBehaviour : public CGUIBehaviourDecorator
{
public:
    enum MultitouchType_t
    {
        MT_SCALE, 
        MT_SCROLL 
    };
 
public:
    CGUIMultitouchBehaviour(
        const MultitouchType_t& eType,
        const eC_Bool& bKeepCenter,
        const eC_Value& vFactor);
 
    CGUIMultitouchBehaviour();
 
#if defined(GUILIANI_STREAM_GUI)
    virtual void ReadFromStream();
#endif
 
#if defined(GUILIANI_WRITE_GUI)
    virtual void WriteToStream(const eC_Bool bWriteClassID=false);
#endif
 
    void SetType(const MultitouchType_t& eType);
 
    MultitouchType_t GetType() const;
 
    void SetKeepCenter(const eC_Bool& bKeepCenter);
 
    eC_Bool GetKeepCenter() const;
 
    void SetFactor(const eC_Value& vFactor);
 
    eC_Value GetFactor() const;
 
protected:
    virtual eC_Bool DoScale(const eC_Value& vDelta);
 
    virtual eC_Bool DoScroll(
        const eC_Value& vAbsX,
        const eC_Value& vAbsY,
        const eC_Value& vDelta,
        const eC_Bool& bModifierActive);
 
private:
    MultitouchType_t m_eType;
    eC_Bool m_bKeepCenter;
    eC_Value m_vFactor;
};
 
#endif