1 /* GRAPHITE2 LICENSING 2 3 Copyright 2010, SIL International 4 All rights reserved. 5 6 This library is free software; you can redistribute it and/or modify 7 it under the terms of the GNU Lesser General Public License as published 8 by the Free Software Foundation; either version 2.1 of License, or 9 (at your option) any later version. 10 11 This program is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 Lesser General Public License for more details. 15 16 You should also have received a copy of the GNU Lesser General Public 17 License along with this library in the file named "LICENSE". 18 If not, write to the Free Software Foundation, 51 Franklin Street, 19 Suite 500, Boston, MA 02110-1335, USA or visit their web page on the 20 internet at http://www.fsf.org/licenses/lgpl.html. 21 22 Alternatively, the contents of this file may be used under the terms of the 23 Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public 24 License, as published by the Free Software Foundation, either version 2 25 of the License or (at your option) any later version. 26 */ 27 #pragma once 28 29 #include "graphite2/Font.h" 30 #include "inc/Main.h" 31 #include "inc/Pass.h" 32 33 namespace graphite2 { 34 35 class Face; 36 class Segment; 37 class FeatureVal; 38 class VMScratch; 39 class Error; 40 41 class Pseudo 42 { 43 public: 44 uint32 uid; 45 uint32 gid; 46 CLASS_NEW_DELETE; 47 }; 48 49 class Justinfo 50 { 51 public: Justinfo(uint8 stretch,uint8 shrink,uint8 step,uint8 weight)52 Justinfo(uint8 stretch, uint8 shrink, uint8 step, uint8 weight) : 53 m_astretch(stretch), m_ashrink(shrink), m_astep(step), 54 m_aweight(weight) {}; attrStretch()55 uint8 attrStretch() const { return m_astretch; } attrShrink()56 uint8 attrShrink() const { return m_ashrink; } attrStep()57 uint8 attrStep() const { return m_astep; } attrWeight()58 uint8 attrWeight() const { return m_aweight; } 59 60 private: 61 uint8 m_astretch; 62 uint8 m_ashrink; 63 uint8 m_astep; 64 uint8 m_aweight; 65 }; 66 67 class Silf 68 { 69 // Prevent copying 70 Silf(const Silf&); 71 Silf& operator=(const Silf&); 72 73 public: 74 Silf() throw(); 75 ~Silf() throw(); 76 77 bool readGraphite(const byte * const pSilf, size_t lSilf, Face &face, uint32 version); 78 bool runGraphite(Segment *seg, uint8 firstPass=0, uint8 lastPass=0, int dobidi = 0) const; 79 uint16 findClassIndex(uint16 cid, uint16 gid) const; 80 uint16 getClassGlyph(uint16 cid, unsigned int index) const; 81 uint16 findPseudo(uint32 uid) const; numUser()82 uint8 numUser() const { return m_aUser; } aPseudo()83 uint8 aPseudo() const { return m_aPseudo; } aBreak()84 uint8 aBreak() const { return m_aBreak; } aMirror()85 uint8 aMirror() const {return m_aMirror; } aPassBits()86 uint8 aPassBits() const { return m_aPassBits; } aBidi()87 uint8 aBidi() const { return m_aBidi; } aCollision()88 uint8 aCollision() const { return m_aCollision; } substitutionPass()89 uint8 substitutionPass() const { return m_sPass; } positionPass()90 uint8 positionPass() const { return m_pPass; } justificationPass()91 uint8 justificationPass() const { return m_jPass; } bidiPass()92 uint8 bidiPass() const { return m_bPass; } numPasses()93 uint8 numPasses() const { return m_numPasses; } maxCompPerLig()94 uint8 maxCompPerLig() const { return m_iMaxComp; } numClasses()95 uint16 numClasses() const { return m_nClass; } flags()96 byte flags() const { return m_flags; } dir()97 byte dir() const { return m_dir; } numJustLevels()98 uint8 numJustLevels() const { return m_numJusts; } justAttrs()99 Justinfo *justAttrs() const { return m_justs; } endLineGlyphid()100 uint16 endLineGlyphid() const { return m_gEndLine; } silfInfo()101 const gr_faceinfo *silfInfo() const { return &m_silfinfo; } 102 103 CLASS_NEW_DELETE; 104 105 private: 106 size_t readClassMap(const byte *p, size_t data_len, uint32 version, Error &e); 107 template<typename T> inline uint32 readClassOffsets(const byte *&p, size_t data_len, Error &e); 108 109 Pass * m_passes; 110 Pseudo * m_pseudos; 111 uint32 * m_classOffsets; 112 uint16 * m_classData; 113 Justinfo * m_justs; 114 uint8 m_numPasses; 115 uint8 m_numJusts; 116 uint8 m_sPass, m_pPass, m_jPass, m_bPass, 117 m_flags, m_dir; 118 119 uint8 m_aPseudo, m_aBreak, m_aUser, m_aBidi, m_aMirror, m_aPassBits, 120 m_iMaxComp, m_aCollision; 121 uint16 m_aLig, m_numPseudo, m_nClass, m_nLinear, 122 m_gEndLine; 123 gr_faceinfo m_silfinfo; 124 125 void releaseBuffers() throw(); 126 }; 127 128 } // namespace graphite2 129