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 "salglyphid.hxx" 32 #include "vcl/dllapi.h" 33 34 namespace vcl { struct _TrueTypeFont; } // SFT's idea of a TTF font 35 36 class VCL_DLLPUBLIC FontSubsetInfo 37 { 38 public: 39 explicit FontSubsetInfo( void ); 40 virtual ~FontSubsetInfo( void ); 41 42 enum FontType { 43 NO_FONT = 0, 44 SFNT_TTF = 1<<1, // SFNT container with TrueType glyphs 45 SFNT_CFF = 1<<2, // SFNT container with CFF-container 46 TYPE1_PFA = 1<<3, // PSType1 Postscript Font Ascii 47 TYPE1_PFB = 1<<4, // PSType1 Postscript Font Binary 48 CFF_FONT = 1<<5, // CFF-container with PSType2 glyphs 49 TYPE3_FONT = 1<<6, // PSType3 Postscript font 50 TYPE42_FONT = 1<<7, // PSType42 wrapper for an SFNT_TTF 51 ANY_SFNT = SFNT_TTF | SFNT_CFF, 52 ANY_TYPE1 = TYPE1_PFA | TYPE1_PFB, 53 ANY_FONT = 0xFF 54 }; 55 56 bool LoadFont( FontType eInFontType, 57 const unsigned char* pFontBytes, int nByteLength ); 58 bool LoadFont( vcl::_TrueTypeFont* pSftTrueTypeFont ); 59 60 bool CreateFontSubset( int nOutFontTypeMask, 61 FILE* pOutFile, const char* pOutFontName, 62 const sal_GlyphId* pGlyphIds, const sal_uInt8* pEncodedIds, 63 int nReqGlyphCount, sal_Int32* pOutGlyphWidths = NULL ); 64 65 public: // TODO: make subsetter results private and provide accessor methods instead 66 // subsetter-provided subset details needed by e.g. Postscript or PDF 67 String m_aPSName; 68 int m_nAscent; // all metrics in PS font units 69 int m_nDescent; 70 int m_nCapHeight; 71 Rectangle m_aFontBBox; 72 FontType m_nFontType; // font-type of subset result 73 74 private: 75 // input-font-specific details 76 unsigned const char* mpInFontBytes; 77 int mnInByteLength; 78 FontType meInFontType; // allowed mask of input font-types 79 vcl::_TrueTypeFont* mpSftTTFont; 80 81 // subset-request details 82 int mnReqFontTypeMask; // allowed subset-target font types 83 FILE* mpOutFile; 84 const char* mpReqFontName; 85 const sal_GlyphId* mpReqGlyphIds; 86 const sal_uInt8* mpReqEncodedIds; 87 int mnReqGlyphCount; 88 89 protected: 90 bool CreateFontSubsetFromCff( sal_Int32* pOutGlyphWidths = NULL ); 91 bool CreateFontSubsetFromSfnt( sal_Int32* pOutGlyphWidths = NULL ); 92 bool CreateFontSubsetFromType1( sal_Int32* pOutGlyphWidths = NULL ); 93 }; 94 95 #endif // _SV_FONTSUBSET_HXX 96 97