117 lines
3.4 KiB
C
117 lines
3.4 KiB
C
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/*
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* _OLS.H
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*
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* Purpose:
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* COls Line Services object class used to connect RichEdit with
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* Line Services.
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*
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* Authors:
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* Original RichEdit LineServices code: Rick Sailor
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* Murray Sargent
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*
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* Copyright (c) 1997-1998, Microsoft Corporation. All rights reserved.
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*/
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#ifndef _OLS_H
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#define _OLS_H
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#include "_common.h"
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#include "_cfpf.h"
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#ifndef NOCOMPLEXSCRIPTS
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#include "usp10.h"
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#endif
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#define CP_BULLET 0x80000000
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// =============================== CLsrun =====================================
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// CLsrun - LineServices run structure
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struct CLsrun
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{
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LONG _cp; // the starting cp of the run
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const CCharFormat* _pCF; // pointer to the character formatting
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struct CLsrun* _pNext; // next linked (shaped together) run
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#ifndef NOCOMPLEXSCRIPTS
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SCRIPT_ANALYSIS _a; // run's analysis (will be 0 if non-complex script)
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#endif
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private:
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BYTE _fSelected:1; // Is this run selected?
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BYTE _fFallback:1; // Is font fallback applied?
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public:
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void SetSelected(BOOL fSelected) {_fSelected = fSelected;}
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BOOL IsSelected();
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BOOL IsBullet() {return _cp & CP_BULLET;}
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void SetFallback(BOOL fFallback) {_fFallback = fFallback;}
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BOOL IsFallback() {return _fFallback;}
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};
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// =============================== CLsrunChunk =====================================
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// CLsrunChunk - Manages a chunk of PLSRUNs
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class CLsrunChunk
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{
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public:
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PLSRUN _prglsrun;
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int _cel;
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};
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// =============================== COls =====================================
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// COls - LineServices object class
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class CTxtEdit;
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class CMeasurer;
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class CDispDim;
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struct COls
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{
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public:
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CMeasurer *_pme; // Active CMeasurer or CRenderer
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PLSLINE _plsline; // Line cache
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LONG _cp; // cpMin for _plsline
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const CDisplay *_pdp; // Current Display object, used to determine if display
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// object changed without receiving focus messages
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CArray<long> _rgcp; // Array for CP mapping
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CArray<CLsrunChunk> _rglsrunChunk; // Array of ClsrunChunks
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// Note: might be better to alloc the following only if needed
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LSTBD _rgTab[MAX_TAB_STOPS]; // Buffer used by pfnFetchTabs
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WCHAR _szAnm[CCHMAXNUMTOSTR + 4];//numbering + braces + space + end character
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WCHAR _rgchTemp[64]; // Temporary buffer for passwords and allcaps, etc.
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int _cchAnm; // cch in use
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CCharFormat _CFBullet; // Character formatting for anm run
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LONG _cEmit; // Brace emitting protection (0 - balance)
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COls() {}
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~COls();
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//CP matching, reverser brace support
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LONG GetCpLsFromCpRe(LONG cpRe);
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LONG GetCpReFromCpLs(LONG cpLs);
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LONG BracesBeforeCp(LONG cpLs);
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BOOL AddBraceCp(LONG cpLs);
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PLSRUN CreatePlsrun(void);
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void QueryLineInfo(LSLINFO &lslinfo, LONG *pupStart, LONG *pdupWidth);
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BOOL SetLsChp(DWORD dwObjId, PLSRUN plsrun, PLSCHP plschp);
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BOOL SetRun(PLSRUN plsrun);
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PLSRUN GetPlsrun(LONG cp, const CCharFormat *pCF, BOOL fAutoNumber);
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LSERR WINAPI FetchAnmRun(long cp, LPCWSTR *plpwchRun, DWORD *pcchRun,
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BOOL *pfHidden, PLSCHP plsChp, PLSRUN *pplsrun);
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void CchFromUp(POINTUV pt, CDispDim *pdispdim, LONG *pcpActual);
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void CreateOrGetLine();
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void DestroyLine(CDisplay *pdp);
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HRESULT Init(CMeasurer *pme);
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BOOL MeasureLine(CLine *pliTarget);
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LONG MeasureText(LONG cch, UINT taMode, CDispDim *pdispdim);
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BOOL RenderLine(CLine &li, BOOL fLastLine);
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CMeasurer * GetMeasurer() {return _pme;}
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CRenderer * GetRenderer() {return (CRenderer*) _pme;}
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};
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extern COls* g_pols;
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extern const LSIMETHODS vlsimethodsOle;
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extern CLineServices *g_plsc; // LineServices Context
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#endif
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