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76ee07f61c
Co-authored-by: Alexander Trofimov <alexander.trofimov@onlyoffice.com> Co-committed-by: Alexander Trofimov <alexander.trofimov@onlyoffice.com>
149 lines
4.8 KiB
C++
149 lines
4.8 KiB
C++
/*
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* Copyright (C) Ascensio System SIA, 2009-2026
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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, together with the
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* additional terms provided in the LICENSE file.
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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: https://www.gnu.org/licenses/agpl-3.0.html
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*
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* You can contact Ascensio System SIA by email at info@onlyoffice.com
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* or by postal mail at 20A-6 Ernesta Birznieka-Upisha Street, Riga,
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* LV-1050, Latvia, European Union.
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*
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* The interactive user interfaces in modified versions of the Program
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* are required to display Appropriate Legal Notices in accordance with
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* Section 5 of the GNU AGPL version 3.
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*
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* No trademark rights are granted under this License.
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*
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* All non-code elements of the Product, including illustrations,
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* icon sets, and technical writing content, are licensed under the
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* Creative Commons Attribution-ShareAlike 4.0 International License:
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* https://creativecommons.org/licenses/by-sa/4.0/legalcode
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*
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* This license applies only to such non-code elements and does not
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* modify or replace the licensing terms applicable to the Program's
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* source code, which remains licensed under the GNU Affero General
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* Public License v3.
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*
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* SPDX-License-Identifier: AGPL-3.0-only
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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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// Write TrueTypeFont File, filling in missing tables and correcting
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// various errors. If <sName> parameter is specified, the 'name' table
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// is rewritten in the font. If <pCodeToGID> parameter is specified,
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// the 'cmap' table is rewritten in the font.
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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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