175 lines
4.9 KiB
C++
175 lines
4.9 KiB
C++
/*
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* @doc INTERNAL
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*
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* @module _FRUNPTR.H -- CFormatRunPtr class declaration |
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*
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* Original Authors: <nl>
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* Original RichEdit code: David R. Fulmer <nl>
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* Christian Fortini <nl>
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* Murray Sargent <nl>
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*
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* History: <nl>
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* 06-25-95 alexgo cleanup and commenting
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*
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* Copyright (c) 1995-1997, Microsoft Corporation. All rights reserved.
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*/
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#ifndef _FRUNPTR_H
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#define _FRUNPTR_H
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#include "_array.h"
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#include "_text.h"
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#include "_runptr.h"
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#include "_format.h"
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#define CharFormat 0
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#define ParaFormat 1
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typedef enum {
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IGNORE_CURRENT_FONT = 0,
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MATCH_CURRENT_CHARSET = 1,
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MATCH_FONT_SIG = 2,
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MATCH_ASCII = 4
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} FONT_MATCHING;
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/*
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* CFormatRunPtr
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*
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* @class A Run pointer over an array of CFormatRun structures.
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* This pointer understands how to add remove character/paragraph
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* formatting
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*
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* @base public | CRunPtr<lt>CFormatRun<gt>
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*
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* @devnote The format run pointer has one extra interesting state
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* transistion beyond the normal CRunPtrBase transistions.
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*
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* If this run pointer is in the NULL state, then InitRuns may
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* be used to create or fetch the correct run array for the
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* run pointer. Note that if a run array is already allocated
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* it will be simply be fetched and used. This allows us to
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* treat unitialized run pointers the same as run pointers to
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* an uninitialized document.
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* @xref See also <mf CFormatRunPtr::InitRuns>
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*/
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class CFormatRunPtr : public CRunPtr<CFormatRun>
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{
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friend class CRchTxtPtr;
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friend class CTxtRange;
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friend class CReplaceFormattingAE;
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friend class CUniscribe;
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//@access Public Methods
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public:
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#ifdef DEBUG
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BOOL Invariant(void) const; //@cmember Invariant tests
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#endif
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CFormatRunPtr(const CFormatRunPtr &rp) //@cmember Copy Constructor
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: CRunPtr<CFormatRun>((CRunPtrBase&)rp) {}
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CFormatRunPtr(CFormatRuns *pfr) //@cmember Constructor
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: CRunPtr<CFormatRun>((CRunArray *)pfr) {}
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short GetFormat() const; //@cmember Get current format index
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void SetLevel (CBiDiLevel& level); //@cmember Set run's embedding level
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BYTE GetLevel (CBiDiLevel* pLevel = NULL);//@cmember Get run's embedding level
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BOOL SameLevel (CFormatRunPtr* prp)
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{
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return !(IsValid() && GetRun(0)->_level._value != prp->GetRun(0)->_level._value);
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}
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BOOL SameLevel (BYTE bLevel)
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{
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return !(IsValid() && GetRun(0)->_level._value != bLevel);
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}
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//@access Private Methods
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private:
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//@cmember Format Run Array management
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BOOL InitRuns(LONG ich, LONG cch, CFormatRuns **ppfrs);
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//@cmember Formatting replacement
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void Delete(LONG cch, IFormatCache *pf, LONG cchMove);
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//@cmember Formatting insertion
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LONG InsertFormat(LONG cch, LONG iformat, IFormatCache *pf);
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//@cmember Merge two adjacent formatting runs
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void MergeRuns(LONG iRun, IFormatCache *pf);
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//@cmember Split run
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void SplitFormat(IFormatCache *pf);
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//@cmember Sets the format for the current run
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LONG SetFormat(LONG ifmt, LONG cch, IFormatCache *pf, CBiDiLevel* pLevel = NULL);
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//@cmember Extends formatting from previous run
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void AdjustFormatting(LONG cch, IFormatCache *pf);
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//@cmember Remove <p cRun>
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void Remove (LONG cRun, IFormatCache *pf);
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};
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enum MASKOP
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{
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MO_OR = 0,
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MO_AND,
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MO_EXACT
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};
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class CTxtEdit;
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class CCFRunPtr : public CFormatRunPtr
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{
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friend class CRchTxtPtr;
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friend class CTxtRange;
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public:
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CTxtEdit *_ped;
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CCFRunPtr(const CRchTxtPtr &rtp); //@cmember Copy Constructor
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CCFRunPtr(const CFormatRunPtr &rp, CTxtEdit *ped);
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BOOL IsHidden() {return IsMask(CFE_HIDDEN);}
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BOOL IsMask(DWORD dwMask, MASKOP mo = MO_OR);
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BOOL IsInHidden(); //@cmember True if in hidden text
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LONG FindUnhidden(); //@cmember Find nearest unhidden CF
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LONG FindUnhiddenBackward();//@cmember Find previous unhidden CF
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LONG FindUnhiddenForward();//@cmember Find previous unhidden CF
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int MatchFormatSignature(const CCharFormat* pCF, int iScript, int fMatchCurrent, DWORD* pdwFontSig = NULL);
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//@member Get font info for code page
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bool GetPreferredFontInfo(
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int cpg,
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BYTE& bCharSet,
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SHORT& iFont,
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SHORT& yHeight,
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BYTE& bPitchAndFamily,
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int iFormat,
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int iMatchCurrent = MATCH_FONT_SIG
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);
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};
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class CPFRunPtr : public CFormatRunPtr
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{
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friend class CRchTxtPtr;
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friend class CTxtRange;
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public:
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CTxtEdit *_ped;
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CPFRunPtr(const CRchTxtPtr &rtp); //@cmember Copy Constructor
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//@cmember Find Heading before cpMost
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LONG FindHeading(LONG cch, LONG& lHeading);
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BOOL InTable(); //@cmember True if paraformat is in table
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BOOL IsCollapsed(); //@cmember True if paraformat is collapsed
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LONG FindExpanded(); //@cmember Find nearest expanded PF
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LONG FindExpandedBackward();//@cmember Find previous expanded PF
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LONG FindExpandedForward();//@cmember Find next expanded PF
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LONG GetOutlineLevel(); //@cmember Get outline level
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LONG GetStyle(); //@cmember Get style
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};
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#endif
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