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210 lines
7.6 KiB
210 lines
7.6 KiB
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/*
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* _RENDER.H
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*
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* Purpose:
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* CRenderer class
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*
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* Authors:
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* RichEdit 1.0 code: David R. Fulmer
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* Christian Fortini (initial conversion to C++)
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* Murray Sargent
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*
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* Copyright (c) 1995-2000, Microsoft Corporation. All rights reserved.
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*/
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#ifndef _RENDER_H
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#define _RENDER_H
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#include "_measure.h"
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#include "_rtext.h"
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#include "_osdc.h"
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BOOL IsTooSimilar(COLORREF cr1, COLORREF cr2);
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class CDisplay;
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// ========================== CRenderer ==================================
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// CRenderer - specialized text pointer used for rendering text
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class CRenderer : public CMeasurer
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{
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friend struct COls;
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friend struct CLsrun;
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#ifndef NOLINESERVICES
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friend LSERR OlsDrawGlyphs(POLS,PLSRUN,BOOL,BOOL,PCGINDEX,const int*,const int*,PGOFFSET,PGPROP,
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PCEXPTYPE,DWORD,LSTFLOW,UINT,const POINT*,PCHEIGHTS,long,long,const RECT*);
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friend LSERR WINAPI OlsOleDisplay(PDOBJ pdobj, PCDISPIN pcdispin);
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friend LSERR WINAPI OlsDrawTextRun(POLS, PLSRUN, BOOL, BOOL, const POINT *,LPCWSTR, const int *,DWORD,LSTFLOW,
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UINT, const POINT *, PCHEIGHTS, long, long, const RECT *);
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#endif
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private:
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RECTUV _rcView; // View rect (_hdc logical coords)
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RECTUV _rcRender; // Rendered rect (_hdc logical coords)
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RECTUV _rc; // Running clip/erase rect (_hdc logical coords)
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RECTUV _rcErase; // Rectangle to use for erasing iff _fEraseOnFirstDraw
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LONG _dupLine; // Total width of line REVIEW (keithcu) still needed
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LONG _cpAccelerator; // Accelerator cp if any (-1 if none).
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COLORREF _crBackground; // Default background color
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COLORREF _crForeDisabled; // Foreground color for disabled text
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COLORREF _crShadowDisabled; // Shadow color for disabled text
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COLORREF _crTextColor; // Default text color
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COLORREF _crCurBackground; // Current background color
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COLORREF _crCurTextColor; // Current text color
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COffscreenDC _osdc; // Manager for offscreen DC
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HDC _hdc; // Current hdc
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HDC _hdcBitmap; // Memory hdc for background BitBlts
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HBITMAP _hbitmapSave; // Saved hbitmap when _hdcMem being used
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SHORT _dxBitmap; // Background bitmap width
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SHORT _dyBitmap; // Background bitmap height
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union
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{
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DWORD _dwFlags; // All together now
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struct
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{
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DWORD _fDisabled:1; // Draw text with disabled effects?
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DWORD _fErase:1; // Erase background (non transparent)
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DWORD _fSelected:1; // Render run with selection colors
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DWORD _fLastChunk:1; // Rendering last chunk
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DWORD _fSelectToEOL:1; // Whether selection runs to end of line
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DWORD _fRenderSelection:1;// Render selection?
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DWORD _fBackgroundColor:1;// Some text in the line has non-default
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// background color.
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DWORD _fEnhancedMetafileDC:1; // Use ExtTextOutA to hack around all
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// sort of Win95FE EMF or font problems
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DWORD _fFEFontOnNonFEWin9x:1; // have to use ExtTextOutW even for EMF.
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DWORD _fSelectedPrev:1; // TRUE if prev run selected
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DWORD _fStrikeOut:1; // TRUE if current run is struckout
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DWORD _fEraseOnFirstDraw:1;//Draw opaquely for first run?
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DWORD _fDisplayDC:1; // Display dc
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};
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};
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LOGPALETTE *_plogpalette;
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POINTUV _ptCur; // Current rendering position on screen
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BYTE _bUnderlineType; // Underline type
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COLORREF _crUnderlineClr; // Underline color
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void Init(); // Initialize most members to zero
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void UpdatePalette(COleObject *pobj);
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void RenderText(const WCHAR* pch, LONG cch);
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BOOL SetNewFont();
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BOOL FindDrawEntry(LONG cp);
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//Rotation wrappers;
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void EraseTextOut(HDC hdc, const RECTUV *prc, BOOL fSimple = FALSE);
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BOOL RenderChunk(LONG &cchChunk, const WCHAR *pchRender, LONG cch);
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LONG RenderTabs(LONG cchChunk);
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BOOL RenderBullet();
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public:
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CRenderer (const CDisplay * const pdp);
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CRenderer (const CDisplay * const pdp, const CRchTxtPtr &rtp);
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~CRenderer ();
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void operator =(const CLine& li) {*(CLine*)this = li;}
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BOOL IsSimpleBackground() const;
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void RenderExtTextOut(POINTUV ptuv, UINT fuOptions, RECT *prc, PCWSTR pch, UINT cch, const INT *rgdxp);
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BOOL EraseRect(const RECTUV *prc, COLORREF crBack);
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void EraseLine();
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COLORREF GetDefaultBackColor() const {return _crBackground;}
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COLORREF GetDefaultTextColor() const {return _crTextColor;}
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COLORREF GetTextColor(const CCharFormat *pCF);
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void SetDefaultBackColor(COLORREF cr);
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void SetDefaultTextColor(COLORREF cr);
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void SetTextColor(COLORREF cr);
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void SetSelected(BOOL f) {_fSelected = f;}
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void SetErase(BOOL f) {_fErase = f;}
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const POINTUV& GetCurPoint() const {return _ptCur;}
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void SetCurPoint(const POINTUV &pt) {_ptCur = pt;}
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void SetRcView(const RECTUV *prcView){_rcView = *prcView; _rcRender = *prcView;}
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void SetRcViewTop(LONG top) {_rcView.top = top;}
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void SetRcBottoms(LONG botv, LONG botr) {_rcView.bottom = botv; _rcRender.bottom = botr;}
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const RECTUV& GetRcRender() {return _rcRender;}
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const RECTUV& GetRcView() {return _rcView;}
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const RECTUV& GetClipRect() const {return _rc;}
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void SetClipRect(void);
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void SetClipLeftRight(LONG dup);
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HDC GetDC() const {return _hdc;}
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BOOL StartRender(const RECTUV &rcView, const RECTUV &rcRender);
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LONG DrawTableBorders(const CParaFormat *pPF, LONG x, LONG yHeightRow,
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LONG iDrawBottomLine, LONG dulRow,
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const CParaFormat *pPFAbove);
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COLORREF GetColorFromIndex(LONG icr, BOOL fForeColor,
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const CParaFormat *pPF) const;
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COLORREF GetShadedColorFromIndices(LONG icrf, LONG icrb, LONG iShading, //@parm Shading in .01 percent
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const CParaFormat *pPF) const;
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void DrawWrappedObjects(CLine *pliFirst, CLine *pliLast, LONG cpFirst, const POINTUV &ptFirst);
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void EndRender(CLine *pliFirst, CLine *pliLast, LONG cpFirst, const POINTUV &ptFirst);
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void FillRectWithColor(const RECTUV *prc, COLORREF cr);
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void NewLine (const CLine &li);
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BOOL RenderLine(CLine &li, BOOL fLastLine);
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void RenderOffscreenBitmap(HDC hdc, LONG dup, LONG dvp);
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BOOL RenderOutlineSymbol();
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HDC StartLine(CLine &li, BOOL fLastLine, LONG &cpSelMin, LONG &cpSelMost, LONG &dup, LONG &dvp);
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void EraseToBottom();
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void EndLine(HDC hdcSave, LONG dup, LONG dvp);
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void RenderStrikeOut(LONG upStart, LONG vpStart, LONG dup, LONG dvp);
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void RenderUnderline(LONG upStart, LONG vpStart, LONG dup, LONG dvp);
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void DrawLine(const POINTUV &ptStart, const POINTUV &ptEnd);
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void SetFontAndColor(const CCharFormat *pCF);
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HDC SetupOffscreenDC(LONG& dup, LONG& dvp, BOOL fLastLine);
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void SetupUnderline(BYTE bULType, BYTE bULColorIdx, COLORREF crULColor = tomAutoColor);
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CONVERTMODE GetConvertMode();
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BOOL fFEFontOnNonFEWin9x() {return _fFEFontOnNonFEWin9x;}
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BOOL UseXOR(COLORREF cr);
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BOOL fDisplayDC() { return _fDisplayDC; }
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};
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/*
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* BottomOfRender (rcView, rcRender)
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*
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* @mfunc
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* Calculate maximum logical unit to render.
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*
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* @rdesc
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* Maximum pixel to render
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*
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* @devnote
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* This function exists to allow the renderer and dispml to be able
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* to calculate the maximum pixel for rendering in exactly the same
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* way.
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*/
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inline LONG BottomOfRender(const RECTUV& rcView, const RECTUV& rcRender)
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{
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return min(rcView.bottom, rcRender.bottom);
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}
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class CBrush
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{
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COLORREF _cr; // Current color
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HBRUSH _hbrushOld; // HBRUSH when CBrush is created
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HBRUSH _hbrush; // Current HBRUSH
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CRenderer * _pre; // Renderer to use (for rotation)
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public:
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CBrush(CRenderer *pre) {_pre = pre; _hbrush = 0;}
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~CBrush();
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void Draw(LONG u1, LONG v1, LONG u2, LONG v2, LONG dxpLine,
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COLORREF cr, BOOL fHideGridlines);
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};
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#endif
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