324 lines
8.3 KiB
C++
324 lines
8.3 KiB
C++
/*
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* @doc INTERNAL
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*
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* @module _RTFCONV.H -- RichEdit RTF Converter Base Class Definition |
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*
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* Description:
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* This file contains the type declarations used by both the RTF reader
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* and writer for the RICHEDIT control
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*
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* Authors: <nl>
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* Original RichEdit 1.0 RTF converter: Anthony Francisco <nl>
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* Conversion to C++ and RichEdit 2.0: Murray Sargent
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*
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* @devnote
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* sz's in the RTF*.? files usually refer to LPSTRs, not LPWSTRs
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*
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* Copyright (c) 1995-2002, Microsoft Corporation. All rights reserved.
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*/
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#ifndef __RTFCONV_H
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#define __RTFCONV_H
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#include "_edit.h"
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#include "_array.h"
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#include "_range.h"
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#include "_rtext.h"
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#include "tokens.h"
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extern const KEYWORD rgKeyword[];
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extern const KEYWORD rgShapeKeyword[];
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#define LBRACE TEXT('{')
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#define BSLASH TEXT('\\')
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#define RBRACE TEXT('}')
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#define ZERO TEXT('0')
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// Character property bits like an ASCII-only ANSI C LC_CTYPE types
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#define fUC 0x01 // A-Z
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#define fLC 0x02 // a-z
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#define fDG 0x04 // 0-9
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#define fSP 0x08 // Space chars
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#define fPN 0x10 // Punctuation chars
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#define fCT 0x20 // Control chars
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#define fBL 0x40 // Blank chars
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#define fHX 0x80 // 0-9, a-f, or A-F
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#define fAlpha (fUC + fLC)
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#define fAlphaNum (fAlpha + fDG)
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extern const BYTE rgbCharClass[256];
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#define Classify(_ch) (rgbCharClass[_ch])
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#define IsLC(_ch) ((Classify(_ch) & fLC))
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#define IsASCIIAlpha(_ch) ((Classify(_ch) & fAlpha))
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#define IsDigit(_ch) ((Classify(_ch) & fDG))
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#define IsXDigit(_ch) ((Classify(_ch) & fHX))
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#define IsAlphaNum(_ch) ((Classify(_ch) & fAlphaNum))
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#define IsAlphaNumBlank(_ch) ((Classify(_ch) & (fAlphaNum + fBL)))
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template <class T> unsigned int DiffPtrs(T *pA, T *pB)
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{
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return pA - pB;
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}
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//#define DiffPtrs(_pA, _pB, _type) ((UINT) (((_type *) (_pA)) - ((_type *) (_pB))))
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extern INT cKeywords;
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extern INT cShapeKeywords;
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extern const COLORREF g_Colors[];
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extern const char szEndGroupCRLF[];
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#define szaCRLF (BYTE *)&szEndGroupCRLF[1]
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/*
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* Converter Error Codes
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*/
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enum
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{
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ecNoError = 0, // Success
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ecCantUnicode,
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ecColorTableOverflow,
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ecExpectingRtfKeyword,
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ecExpectingStartGroup,
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ecFontTableOverflow,
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ecGeneralFailure,
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ecKeywordTooLong,
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ecLexInitFailed,
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ecNoMemory,
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ecParserBusy,
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ecPutCharFailed,
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ecStackOverflow,
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ecStackUnderflow,
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ecUnexpectedChar,
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ecUnexpectedEOF,
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ecUnexpectedToken,
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ecUnGetCharFailed,
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ecTextMax,
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ecStreamOutObj,
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ecStreamInObj,
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ecTruncateAtCRLF,
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ecFormatCache,
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ecUTF8NotUsed,
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ecAbort,
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ecLastError // Total error messages
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};
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typedef INT EC;
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/*
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* @struct RTFOBJECT |
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* Object data transfer structure
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*/
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typedef struct _rtfobject
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{
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SHORT sType; // @field object type (ROT_*)
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SHORT sPictureType; // @field specific type of sPicture
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SHORT cBitsPerPixel; // @field # bits per pixel, if bitmap
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SHORT cColorPlanes; // @field # color planes, if bitmap
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SHORT cBytesPerLine; // @field # bytes per raster line, if bitmap
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BOOL fSetSize; // @field Let client tell server the size
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LONG xExt, yExt; // @field dimensions in pixels for pictures, twips for
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// for objects
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LONG xScale, yScale; // @field scaling percentage along axes
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SHORT xExtGoal, yExtGoal; // @field desired dimensions in twips for pictures
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RECT rectCrop; // @field cropping information in twips
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WCHAR * szClass; // @field object class
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WCHAR * szName; // @field object name
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// On RTF generation
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LONG xExtPict, yExtPict; // @field metafile dimensions
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LPBYTE pbResult; // metafile depiction of the object
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ULONG cbResult;
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} RTFOBJECT;
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/*
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* @enum ROTYPE | The values for OBJECT.sType
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*
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* Keep this in sync with rgszROT in rtfwrit.cpp
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*/
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enum ROTYPE
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{
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ROT_Bitmap, // @emem Bitmap
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ROT_Metafile, // @emem Metafile
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ROT_DIB, // @emem Device-Independent Bitmap
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ROT_JPEG, // @emem JPEG blip
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ROT_PNG, // @emem PNG blip
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ROT_Embedded, // @emem Embedded Object
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ROT_Link, // @emem Linked Object
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ROT_AutoLink, // @emem Autolink
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ROT_MacEdition, // @emem Mac object
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ROT_EBookImage, // @emem Ebook Image object
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};
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/*
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* DEFINE's
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*/
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#define cachBufferMost 4096
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#define cachTextMax ( 512 + 1 )
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#define cachKeywordMax ( 32 + 1 )
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#define cachParamMax ( 11 + 1 )
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#define cFooChunk 8
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#define MAXTABLENEST 16
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// Characters to give to RichEdit
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#if ( cachTextMax - 1 ) % 2 == 1
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#error "cachTextMax - 1 MUST be even"
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#endif
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#if ( cachParamMax - 1 ) < 11
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#error "cachParamMax MUST be >= 11"
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#endif
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/*
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* Some RTF defaults
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*/
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#ifdef NEVER
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// we don't care about margins, just indents
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#define dxDefaultLeftMargin 1800
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#define dxDefaultRightMargin 1800
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#else
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#define dxDefaultLeftMargin 0
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#define dxDefaultRightMargin 0
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#endif
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// next two in half points
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#define yDefaultFontSize ( 12 * 2 )
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#define dyDefaultSuperscript 6
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#define RESERVED_FONT_HANDLES 0x800
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/*
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* @struct TEXTFONT |
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* text font structure
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*/
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typedef struct _textfont
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{
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SHORT sHandle; // @field RTF input font handle
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BYTE iCharRep; // @field Font character repertoire
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BYTE bPitchAndFamily; // @field Font family
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SHORT iFont; // @field Font name index
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WCHAR szName[LF_FACESIZE+1]; // @field Font name
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SHORT sCodePage; // @field Code page for font
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// (INVALID_CODEPAGE == not set)
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BYTE fNameIsDBCS; // @field Indicates if szName is DBCS stuffed into Unicode buffer
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BYTE fCpgFromSystem; // @field Indicates is cpg was
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// retrieved from system based
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// on font name.
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} TEXTFONT;
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/*
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* Global variables for the scope of the entire parser/reader
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*/
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#ifdef DEBUG
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extern CHAR * rgszParseError[];
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extern CHAR * szDest[];
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#endif
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#define cchMaxNumText 16
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// tagged font info
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typedef struct _tfi
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{
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WCHAR *szNormalName;
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WCHAR *szTaggedName;
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BYTE iCharRep;
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} TFI;
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typedef CArray<TEXTFONT> TEXTFONTS;
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typedef CArray<COLORREF> COLORREFS;
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const short INVALID_CODEPAGE = -1;
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const short INVALID_LANGUAGE = -1;
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// default value for \ucN tag
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const int iUnicodeCChDefault = 1;
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/*
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* CRTFConverter
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*
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* @class RTF converter base class used by CRTFRead and CRTFWrite
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*/
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class CRTFConverter
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{
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//@access Protected Data Members
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protected:
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TEXTFONTS _fonts; // @cmember Font table
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COLORREFS _colors; // @cmember Color table
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EC _ecParseError; // @cmember Error code
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CTxtEdit * _ped; // @cmember CTxtEdit
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CTxtRange * _prg; // @cmember CTxtRange to replace/write from
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EDITSTREAM *_pes; // @cmember EDITSTREAM to use
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DWORD _dwFlags; // @cmember See #defines below
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CCharFormat _CF; // @cmember Character formatting info
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BYTE _iCharRep; // @cmember Converter char set (ANSI, UTF7, UTF8)
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char _bTableLevel; // @cmember Table level (0 for no table)
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char _bTableLevelIP; // @cmember Table level at insertion point
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static TFI *_rgtfi; // @cmember Pointer to the first font substitute record
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static INT _ctfi; // @cmember Number of the font substitute records
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static WCHAR *_pchFontSubInfo; // @cmember Font strings for substitutions
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//@access Protected Functions
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void ReadFontSubInfo(void);
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enum PARSEFONTNAME { PFN_SUCCESS, PFN_FAIL, PFN_EOF };
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PARSEFONTNAME ParseFontName(WCHAR *pchBuf,
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WCHAR *pchBufMax,
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WCHAR chDelimiter,
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WCHAR **pszName,
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BYTE &iCharRep,
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BOOL &fSetCharSet,
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WCHAR **ppchBufNew) const;
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BOOL FontSubstitute(WCHAR *szTaggedName,
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WCHAR *szNormalName,
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BYTE *piCharRep);
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BOOL FindTaggedFont(const WCHAR *szNormalName, BYTE iCharRep, WCHAR **ppchTaggedName);
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// @cmember Find font name with additional special tag
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// corresponding to szNormalName & iCharRep
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BOOL IsTaggedFont(const WCHAR *szName, BYTE *piCharRep, WCHAR **ppchNormalName);
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// @cmember Figure out is szName font name with additional tag
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// corresponding to piCharRep
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//@access Public Functions
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public:
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CRTFConverter(CTxtRange *prg, EDITSTREAM *pes, DWORD dwFlags, BOOL fRead);
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inline ~CRTFConverter();
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static void FreeFontSubInfo();
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protected:
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#if defined(DEBUG)
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// for capturing RTF as its read from or written to a file
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HANDLE _hfileCapture;
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#endif
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};
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#define fRTFNoObjs 1
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#define fRTFFE 8 // Check this
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#define IsUTF8 ((_dwFlags & (0xFFFF0000 | SF_USECODEPAGE)) \
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== ((CP_UTF8 << 16) | SF_USECODEPAGE))
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/*
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* CRTFConverter::~CRTFConverter()
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*
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* @mfunc
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* RTF Converter destructor
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*/
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inline CRTFConverter::~CRTFConverter()
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{
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#if defined(DEBUG)
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if(_hfileCapture)
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{
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CloseHandle(_hfileCapture);
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_hfileCapture = NULL;
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}
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#endif
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}
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#endif // __RTFCONV_H
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