GUIScrollBarOwnerDrawn.h

#pragma once
#include "GUIDefinitions.h"
 
namespace FLImaging
{
    namespace GUI
    {
        class CGUIScrollBarOwnerDrawn
        {
        public:
            CGUIScrollBarOwnerDrawn(CWnd* pParentWnd, EOrientation eOrientation = EOrientation_Vertical);
            virtual ~CGUIScrollBarOwnerDrawn();
 
            virtual void SetOrientation(EOrientation eOrientation);
            virtual EOrientation GetOrientation() const;
 
            virtual void SetColorBackground(COLORREF clrBk, COLORREF clrBkHilight);
            virtual void GetColorBackground(COLORREF& clrBk, COLORREF& clrBkHilight) const;
 
            virtual void SetColorThumb(COLORREF clrThumb, COLORREF clrThumbHilight);
            virtual void GetColorThumb(COLORREF& clrThumb, COLORREF& clrThumbHilight) const;
 
            virtual void SetColorArrow(COLORREF clrArrow, COLORREF clrArrowHilight);
            virtual void GetColorArrow(COLORREF& clrArrow, COLORREF& clrArrowHilight) const;
 
            virtual const CResult CalcScrollBarRegion(CRect rect, int32_t i32ContentsSize);
 
            virtual EScrollBarArea HitTest(const CPoint& ptPoint) const;
 
            virtual void SetHitArea(EScrollBarArea eHitArea);
            virtual EScrollBarArea GetHitArea()const;
 
            virtual int32_t GetScrollPos() const;
            virtual void SetScrollPos(int32_t i32Pos);
 
            virtual double GetOffsetPerPixel() const;
 
            virtual const CRect GetScrollRect() const;
 
            virtual bool IsLButtonDown() const;
 
            virtual bool IsVisible() const;
            virtual void Show(bool bShow);
            
            virtual void UpdateScrollBar();
 
            virtual void OnLButtonDown(const CPoint& ptPoint);
            virtual void OnLButtonUp(const CPoint& ptPoint);
            virtual void OnMouseMove(const CPoint& ptPoint);
            virtual void OnMouseWheel(const CPoint& ptPoint, bool bUpWheel);
 
            virtual void Draw(CDC* pDC) const;
 
        protected:
            CWnd* m_pParentWnd;
 
            EScrollBarArea m_eScrollHit;
            EOrientation m_eOrientation;
 
            CPoint m_ptPointPrev;
            CPoint m_ptLButtonDown;
 
            POINT m_arrPtPrevArrow[3];
            POINT m_arrPtNextArrow[3];
 
            CRect m_rtBackground;
            CRect m_rtThumb;
            CRect m_rtPrevArrow;
            CRect m_rtNextArrow;
 
            int32_t m_i32ScrollRangeBegin;
            int32_t m_i32ScrollRangeEnd;
            int32_t m_i32ScrollRange;
            int32_t m_i32ThumbSize;
            int32_t m_i32ThumbSizeMin;
            int32_t m_i32Pos;
            int32_t m_i32PosOnLBtnDown;
 
            double m_f64OffsetPerPixel;
            bool m_bShow;
            bool m_bLButtonDown;
 
            mutable CPen m_penArrow;
            mutable CPen m_penArrowHilight;
            mutable CBrush m_brArrow;
            mutable CBrush m_brArrowHilight;
 
            COLORREF m_clrBackground;
            COLORREF m_clrBackgroundHilight;
            COLORREF m_clrThumb;
            COLORREF m_clrThumbHilight;
            COLORREF m_clrArrow;
            COLORREF m_clrArrowHilight;
        };
    }
}