GUIRangeSlider.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 GUIRANGESLIDER_H
#define GUIRANGESLIDER_H
 
#include "GUIAbstractBar.h"
#include "GUIRange.h"
#include "GUINinePatch.h"
#include "GUICommonEnums.h"
 
#include "GUIImageResource.h"
 
class CGUIRangeSlider : public CGUIAbstractBar
{
public:
    CGUIRangeSlider(
        CGUICompositeObject* const pkParent,
        const eC_Value& vX, const eC_Value& vY,
        const eC_Value& vWidth, const eC_Value& vHeight,
        const ObjectHandle_t &eID = NO_HANDLE);
 
    CGUIRangeSlider();
 
    virtual ~CGUIRangeSlider();
 
    void SetImages(
        const ImageResource_t& eBackgroundImage,
        const ImageResource_t& eHandle,
        const ImageResource_t& eRange);
 
    void GetImages(
        ImageResource_t& eBackgroundImage,
        ImageResource_t& eHandle,
        ImageResource_t& eRange) const;
 
    void SetOrientation(const CGUICommonEnums::Orientation_t& eOrientation);
 
    CGUICommonEnums::Orientation_t GetOrientation() const;
 
    void SetBackgroundMargin(const eC_Value& vBackgroundMargin);
 
    eC_Value GetBackgroundMargin() const;
 
    const CGUIRange& GetRange2() const;
 
    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 SetValue(const CGUIValue& rkValue);
 
    virtual eC_Bool SetValue2(const CGUIValue& rkValue);
 
    virtual void SetWidth(const eC_Value& vWidth);
    virtual void SetHeight(const eC_Value& vHeight);
 
#if defined(GUILIANI_STREAM_GUI)
    virtual void ReadFromStream();
#endif
 
#if defined(GUILIANI_WRITE_GUI)
    virtual void WriteToStream(const eC_Bool bWriteClassID = false);
#endif
 
    virtual eC_Bool IsHighlightable() const { return false; }
 
protected:
    virtual eC_Bool DoDraw();
 
private:
    enum MovingPart_t
    {
        MP_NONE,
        MP_HANDLE1,
        MP_HANDLE2,
        MP_MIDDLE
    };
 
    void Init();
 
    void DeInit();
 
    void CalculateImageSizes();
    void CalculateValues();
    void CalculateHandle();
 
    void MoveHandle(const eC_Value& vDeltaX, const eC_Value& vDeltaY, const eC_Value& vAbsX, const eC_Value& vAbsY);
 
private:
    // streamed members
    CGUICommonEnums::Orientation_t m_eOrientation;
    ImageResource_t m_eBackground;
    ImageResource_t m_eRange;
    ImageResource_t m_eHandle;
 
    eC_Value m_vBackgroundMargin;
 
    // internal members
    MovingPart_t m_eMovingHandle;
 
    CGUIRect m_kHandle1;
    CGUIRect m_kHandle2;
 
    eC_Value m_vHandleWidth;
    eC_Value m_vHandleHeight;
    eC_Value m_vRangeWidth;
    eC_Value m_vRangeHeight;
 
    eC_Value m_vBackgroundWidth;
    eC_Value m_vBackgroundHeight;
    eC_Value m_vBackgroundPosX;
    eC_Value m_vBackgroundPosY;
 
    CGUIRect m_kRangeRect;
 
    CGUIRange m_kRange2;
 
    eC_Bool m_bSelfUpdate;
};
 
#endif