73 lines
1.5 KiB
C++
73 lines
1.5 KiB
C++
#pragma once
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//----------------------------------------------------------------
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//
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//
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//
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//----------------------------------------------------------------
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typedef struct
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{
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RECT rc;
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int GetWidth() {return rc.right - rc.left;}
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} CHARINFO;
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//----------------------------------------------------------------
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//
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//
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//
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//----------------------------------------------------------------
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typedef struct
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{
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UINT nPos;
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UINT nCnt;
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CHARINFO *prgCharInfo;
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} LINEINFO;
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//----------------------------------------------------------------
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//
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//
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//
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//----------------------------------------------------------------
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class CTextLayout
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{
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public:
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CTextLayout()
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{
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_prgLines = NULL;
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_nLineCnt = 0;
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_fCaret = FALSE;
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}
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~CTextLayout()
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{
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Clear();
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}
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BOOL Layout(HDC hdc, const WCHAR *psz, UINT nCnt);
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BOOL Render(HDC hdc, const WCHAR *psz, UINT nCnt, UINT nSelStart, UINT nSelEnd,
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UINT nCompStart, UINT nCompEnd,
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const BYTE *prgAttr, LONG lAttrSize, const LONG *prgClauseInfo, LONG lClauseInfo);
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BOOL RectFromCharPos(UINT nPos, RECT *prc);
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UINT CharPosFromPoint(POINT pt);
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UINT ExactCharPosFromPoint(POINT pt);
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UINT FineFirstEndCharPosInLine(UINT uCurPos, BOOL bFirst);
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void BlinkCaret(HDC hdc);
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int GetLineHeight() {return _nLineHeight;}
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private:
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void Clear();
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HPEN CreateUnderlinePen(BYTE bAttr, int nWidth);
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int _nLineHeight;
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LINEINFO *_prgLines;
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UINT _nLineCnt;
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BOOL _fCaret;
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RECT _rcCaret;
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};
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