106 lines
2.6 KiB
C
106 lines
2.6 KiB
C
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//-----------------------------------------------------------------------------
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// File: flexscrollbar.h
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//
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// Desc: Implements CFlexScrollBar (derived from CFlexWnd), a scroll bar
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// control similar to a Windows scroll bar.
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//
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// Copyright (C) 1999-2000 Microsoft Corporation. All Rights Reserved.
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//-----------------------------------------------------------------------------
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#ifndef __FLEXSCROLLBAR_H__
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#define __FLEXSCROLLBAR_H__
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#include "flexwnd.h"
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#define FSBF_HORZ 0
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#define FSBF_VERT 1
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struct FLEXSCROLLBARCREATESTRUCT {
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DWORD dwSize;
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DWORD dwFlags;
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int min, max, page, pos;
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HWND hWndParent;
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HWND hWndNotify;
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RECT rect;
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BOOL bVisible;
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};
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class CFlexScrollBar : public CFlexWnd
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{
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public:
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CFlexScrollBar();
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~CFlexScrollBar();
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BOOL Create(FLEXSCROLLBARCREATESTRUCT *);
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void SetColors(COLORREF bk, COLORREF fill, COLORREF line);
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void SetValues(int, int, int, int);
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void SetValues(int min, int max, int page) {SetRange(min, max, page);}
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void SetValues(int min, int max) {SetRange(min, max);}
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void SetRange(int min, int max, int page) {SetValues(min, max, page, GetPos());}
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void SetRange(int min, int max) {SetRange(min, max, GetPage());}
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void SetMin(int v) {SetValues(v, GetMax(), GetPage(), GetPos());}
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void SetMax(int v) {SetValues(GetMin(), v, GetPage(), GetPos());}
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void SetPage(int v) {SetValues(GetMin(), GetMax(), v, GetPos());}
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void SetPos(int v) {SetValues(GetMin(), GetMax(), GetPage(), v);}
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int GetMin() {return m_nMin;}
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int GetMax() {return m_nMax;}
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int GetPage() {return m_nPage;}
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int GetPos() {return m_nPos;}
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int GetThumbPos() {return m_bDragging ? m_nThumbPos : -1;}
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void AdjustPos(int adj, BOOL bForceCalc = FALSE);
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protected:
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virtual void OnPaint(HDC hDC);
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virtual LRESULT WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
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private:
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int m_nMin, m_nMax, m_nPage, m_nPos;
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BOOL m_bVert;
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HWND m_hWndNotify;
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COLORREF m_rgbBk, m_rgbFill, m_rgbLine;
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// ui rects... calced by Calc
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RECT m_rectLineUp;
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RECT m_rectPageUp;
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RECT m_rectTrack;
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RECT m_rectThumb;
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RECT m_rectPageDown;
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RECT m_rectLineDown;
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BOOL Calc();
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BOOL FailCalc(BOOL);
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BOOL m_bValid; // true only when we have been created and hav valid values
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// and calc has been called and returned successfully.
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void InternalPaint(HDC hDC);
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POINT m_point, m_startpoint;
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int m_nThumbPos, m_nPreDragPos;
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int m_code;
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int m_startcode;
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BOOL m_bCapture;
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BOOL m_bDragging;
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int HitTest(POINT point);
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void Notify(int code);
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int GetLineAdjust();
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int GetPageAdjust();
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};
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CFlexScrollBar *CreateFlexScrollBar(FLEXSCROLLBARCREATESTRUCT *pcs);
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#endif //__FLEXSCROLLBAR_H__
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