1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 23 24 #ifndef _SV_FONTSUBSET_HXX 25 #define _SV_FONTSUBSET_HXX 26 27 #include <tools/gen.hxx> 28 #include <tools/string.hxx> 29 #include <cstdio> 30 31 #include "vcl/dllapi.h" 32 33 namespace vcl { struct _TrueTypeFont; } // SFT's idea of a TTF font 34 35 class VCL_DLLPUBLIC FontSubsetInfo 36 { 37 public: 38 explicit FontSubsetInfo( void ); 39 virtual ~FontSubsetInfo( void ); 40 41 enum FontType { 42 NO_FONT = 0, 43 SFNT_TTF = 1<<1, // SFNT container with TrueType glyphs 44 SFNT_CFF = 1<<2, // SFNT container with CFF-container 45 TYPE1_PFA = 1<<3, // PSType1 Postscript Font Ascii 46 TYPE1_PFB = 1<<4, // PSType1 Postscript Font Binary 47 CFF_FONT = 1<<5, // CFF-container with PSType2 glyphs 48 TYPE3_FONT = 1<<6, // PSType3 Postscript font 49 TYPE42_FONT = 1<<7, // PSType42 wrapper for an SFNT_TTF 50 ANY_SFNT = SFNT_TTF | SFNT_CFF, 51 ANY_TYPE1 = TYPE1_PFA | TYPE1_PFB, 52 ANY_FONT = 0xFF 53 }; 54 55 bool LoadFont( FontType eInFontType, 56 const unsigned char* pFontBytes, int nByteLength ); 57 bool LoadFont( vcl::_TrueTypeFont* pSftTrueTypeFont ); 58 59 bool CreateFontSubset( int nOutFontTypeMask, 60 FILE* pOutFile, const char* pOutFontName, 61 const long* pReqGlyphIds, const sal_uInt8* pEncodedIds, 62 int nReqGlyphCount, sal_Int32* pOutGlyphWidths = NULL ); 63 64 public: // TODO: make subsetter results private and provide accessor methods instead 65 // subsetter-provided subset details needed by e.g. Postscript or PDF 66 String m_aPSName; 67 int m_nAscent; // all metrics in PS font units 68 int m_nDescent; 69 int m_nCapHeight; 70 Rectangle m_aFontBBox; 71 FontType m_nFontType; // font-type of subset result 72 73 private: 74 // input-font-specific details 75 unsigned const char* mpInFontBytes; 76 int mnInByteLength; 77 FontType meInFontType; // allowed mask of input font-types 78 vcl::_TrueTypeFont* mpSftTTFont; 79 80 // subset-request details 81 int mnReqFontTypeMask; // allowed subset-target font types 82 FILE* mpOutFile; 83 const char* mpReqFontName; 84 const long* mpReqGlyphIds; 85 const sal_uInt8* mpReqEncodedIds; 86 int mnReqGlyphCount; 87 88 protected: 89 bool CreateFontSubsetFromCff( sal_Int32* pOutGlyphWidths = NULL ); 90 bool CreateFontSubsetFromSfnt( sal_Int32* pOutGlyphWidths = NULL ); 91 bool CreateFontSubsetFromType1( sal_Int32* pOutGlyphWidths = NULL ); 92 }; 93 94 #endif // _SV_FONTSUBSET_HXX 95 96