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96 lines
3.2 KiB
C++
96 lines
3.2 KiB
C++
#ifndef _PDF_WRITER_SRC_TTWRITER_H
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#define _PDF_WRITER_SRC_TTWRITER_H
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#include "Streams.h"
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namespace PdfWriter
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{
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struct TrueTypeTable;
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struct TrueTypeCmap;
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//----------------------------------------------------------------------------------------
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// CFontFileBase
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//----------------------------------------------------------------------------------------
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class CFontFileBase
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{
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public:
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virtual ~CFontFileBase();
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protected:
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CFontFileBase(char *sFile, int nLen, bool bFreeFileData);
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static char *ReadFile(const std::wstring & wsFileName, int *pnFileLen);
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int GetS8(int nPos, bool *pbSuccess);
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int GetU8(int nPos, bool *pbSuccess);
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int GetS16BE(int nPos, bool *pbSuccess);
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int GetU16BE(int nPos, bool *pbSuccess);
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int GetS32BE(int nPos, bool *pbSuccess);
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unsigned int GetU32BE(int nPos, bool *pbSuccess);
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unsigned int GetUVarBE(int nPos, int nSize, bool *pbSuccess);
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bool CheckRegion(int nPos, int nSize);
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protected:
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unsigned char *m_sFileData;
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unsigned char *m_sFile;
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int m_nLen;
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bool m_bFreeFileData;
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};
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//----------------------------------------------------------------------------------------
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// CFontFileTrueType
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//----------------------------------------------------------------------------------------
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class CFontFileTrueType : public CFontFileBase
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{
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public:
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static CFontFileTrueType *LoadFromBuffer(char* sBuffer, int nLen, unsigned int unIndex);
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static CFontFileTrueType *LoadFromFile(const std::wstring& wsFileName, unsigned int unIndex);
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~CFontFileTrueType();
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// Записываем TrueTypeFont File, заполняя недостающие таблицы и корректируя
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// различные ошибки. Если задан парметр <sName>, в шрифте переписываем таблицу
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// 'name'. Если задан парамтре <pCodeToGID>, тогда в шрифте переписываем
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// таблицу 'cmap'.
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void WriteTTF(CStream* pOutputStream, char *sName = NULL, unsigned short *pCodeToGID = NULL, unsigned int unCodesCount = 0, unsigned char *pUseGlyfs = NULL, long lGlyfsCount = 0);
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void WriteOTF(CStream* pOutputStream, char *sName = NULL, unsigned short *pCodeToGID = NULL);
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int GetAscent();
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int GetDescent();
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int GetCapHeight();
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int* GetBBox();
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int GetWeight();
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private:
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CFontFileTrueType(char *sBuffer, int nLen, bool bFreeFileData, unsigned int unFontIndex);
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unsigned int ComputeTableChecksum(unsigned char *sData, int nLength);
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void Parse();
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int SeekTable(const char *sTag);
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void ReadOS2();
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private:
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unsigned int m_unFontIndex;
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TrueTypeTable* m_pTables;
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int m_nTablesCount;
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TrueTypeCmap* m_pCMaps;
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int m_nCMapsCount;
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int m_nGlyphs;
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int m_nLocaFormat;
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int m_arrBBox[4];
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bool m_bOpenTypeCFF;
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int m_nAscent;
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int m_nDescent;
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int m_nCapHeight;
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int m_nWeight;
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bool m_bSuccess;
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};
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}
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#endif // _PDF_WRITER_SRC_TTWRITER_H
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