GUICircularSlider.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 _GUICIRCULARSLIDER_H_
#define _GUICIRCULARSLIDER_H_
 
#include "GUIAbstractBar.h"
#include "GUINinePatch.h"
#include "GUIRange.h"
 
#include "GUIPoint.h"
#include "GUIRect.h"
 
#include "GUIImageResource.h"
 
class CGUICircularSlider : public CGUIAbstractBar
{
public:
    CGUICircularSlider(
        CGUICompositeObject* const pkParent,
        const eC_Value& vX, const eC_Value& vY,
        const eC_Value& vWidth, const eC_Value& vHeight,
        const eC_Value& vRadius,
        const eC_Value& vStartAngle,
        const eC_Value& vEndAngle,
        const eC_Int& iValue,
        const eC_Int& iMin,
        const eC_Int& iMax,
        const eC_UInt& uiStepSize,
        const CGUIRange::Base_t& eBase = CGUIRange::BASE_AT_MINIMUM,
        const ObjectHandle_t& eID = NO_HANDLE);
 
    virtual ~CGUICircularSlider();
 
    void SetStandardImages();
 
    virtual eC_Bool DoButtonDown(const eC_Value& vAbsX, const eC_Value& vAbsY);
 
    virtual eC_Bool DoDrag(
        const eC_Value& vDeltaX,
        const eC_Value& vDeltaY,
        const eC_Value& vAbsX,
        const eC_Value& vAbsY);
 
    virtual eC_Bool DoDragEnd(
        const eC_Value& vAbsX,
        const eC_Value& vAbsY);
 
    virtual eC_Bool DoClick(
        const eC_Value& vAbsX,
        const eC_Value& vAbsY);
 
    virtual eC_Bool DoDraw();
 
    void CalculateKnobRect(const eC_Int& iValue);
 
    eC_Value GetAngle(const eC_Value& vAbsX, const eC_Value& vAbsY);
 
    void SetImages(
        const ImageResource_t& eSldBG,
        const ImageResource_t& eSldKnobNormal,
        const ImageResource_t& eSldKnobHighlighted,
        const ImageResource_t& eSldKnobPressed,
        const ImageResource_t& eSldKnobGrayedOut = DUMMY_IMAGE);
 
    // set functions
 
    void SetKnobSize(const eC_Value& vKnobSize);
 
    eC_Value GetKnobSize() const;
 
    void SetStartAngle(const eC_Value& vStartAngle);
 
    eC_Value GetStartAngle() const;
 
    void SetEndAngle(const eC_Value& vEndAngle);
 
    eC_Value GetEndAngle() const;
 
    void SetRadius(const eC_Value& vRadius);
 
    eC_Value GetRadius() const;
 
    virtual eC_Bool SetValue(const CGUIValue& rkValue);
 
    void SetRange(const eC_Int& iMin, const eC_Int& iMax);
 
    void SetSmoothControl(const eC_Bool& bSmoothControl);
 
    eC_Bool GetSmoothControl() const;
 
#ifdef GUILIANI_STREAM_GUI
    CGUICircularSlider();
 
    virtual void ReadFromStream();
#endif
#ifdef GUILIANI_WRITE_GUI
    virtual void WriteToStream(const eC_Bool bWriteClassID = false);
#endif
 
protected:
#ifndef GUILIANI_STREAM_GUI
    CGUICircularSlider();
#endif
 
private:
    void Init(
        const eC_Value& vRadius,
        const eC_Value& vStartAngle,
        const eC_Value& vEndAngle,
        const eC_Int& iValue,
        const eC_Int& iMin,
        const eC_Int& iMax,
        const eC_UInt& uiStepSize,
        const CGUIRange::Base_t& eBase);
 
    void DeInit();
 
    eC_Int GetSliderValue(const eC_Value& vAngle);
 
    void UpdateValue();
    void UpdateAngle();
 
private:
    CGUIRect m_kKnobRect;
 
    ImageResource_t m_eCSldBG;              
    ImageResource_t m_eCSldKnobNormal;      
    ImageResource_t m_eCSldKnobHighlighted; 
    ImageResource_t m_eCSldKnobPressed;     
    ImageResource_t m_eCSldKnobGrayedOut;   
 
    eC_Value m_vKnobSize;
 
    eC_Value m_vMinimumKnobSize;
 
    eC_Bool m_bSmoothControl; 
 
    //radius of ricle inside Rect Object class
    eC_Value m_vRadius;
 
    // angles for user input
    eC_Value m_vStartAngle;
    eC_Value m_vEndAngle;
 
    eC_Value m_vAngle;
};
#endif