146 lines
5.0 KiB
C++
146 lines
5.0 KiB
C++
/*
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* (c) Copyright Ascensio System SIA 2010-2023
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*
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* This program is a free software product. You can redistribute it and/or
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* modify it under the terms of the GNU Affero General Public License (AGPL)
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* version 3 as published by the Free Software Foundation. In accordance with
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* Section 7(a) of the GNU AGPL its Section 15 shall be amended to the effect
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* that Ascensio System SIA expressly excludes the warranty of non-infringement
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* of any third-party rights.
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*
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* This program is distributed WITHOUT ANY WARRANTY; without even the implied
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* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For
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* details, see the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
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*
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* You can contact Ascensio System SIA at 20A-6 Ernesta Birznieka-Upish
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* street, Riga, Latvia, EU, LV-1050.
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*
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* The interactive user interfaces in modified source and object code versions
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* of the Program must display Appropriate Legal Notices, as required under
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* Section 5 of the GNU AGPL version 3.
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*
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* Pursuant to Section 7(b) of the License you must retain the original Product
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* logo when distributing the program. Pursuant to Section 7(e) we decline to
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* grant you any rights under trademark law for use of our trademarks.
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*
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* All the Product's GUI elements, including illustrations and icon sets, as
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* well as technical writing content are licensed under the terms of the
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* Creative Commons Attribution-ShareAlike 4.0 International. See the License
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* terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
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*
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*/
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#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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{
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unsigned int unTag;
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unsigned int unChecksum;
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int nOffset;
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int nOrigOffset;
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int nLen;
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};
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struct TrueTypeCmap
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{
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int nPlatform;
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int nEncoding;
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int nOffset;
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int nLen;
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int nFormat;
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};
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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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void WriteCIDFontType0C(CStream* pOutputStream, unsigned short* pCodeToGID = NULL, unsigned int unCodesCount = 0);
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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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bool GetOpenTypeCFF();
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void SetName(const std::string& sName);
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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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std::string m_sName;
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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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