1 /* 2 ****************************************************************************** * 3 * 4 * Copyright (C) 1999-2003, International Business Machines 5 * Corporation and others. All Rights Reserved. 6 * 7 ****************************************************************************** * 8 * file name: cmaps.h 9 * 10 * created on: ??/??/2001 11 * created by: Eric R. Mader 12 */ 13 14 #ifndef __CMAPS_H 15 #define __CMAPS_H 16 17 #include "layout/LETypes.h" 18 #include "sfnt.h" 19 20 class CMAPMapper 21 { 22 public: 23 virtual LEGlyphID unicodeToGlyph(LEUnicode32 unicode32) const = 0; 24 25 virtual ~CMAPMapper(); 26 27 static CMAPMapper *createUnicodeMapper(const CMAPTable *cmap); 28 29 protected: 30 CMAPMapper(const CMAPTable *cmap); 31 CMAPMapper()32 CMAPMapper() {}; 33 34 private: 35 const CMAPTable *fcmap; 36 }; 37 38 class CMAPFormat4Mapper : public CMAPMapper 39 { 40 public: 41 CMAPFormat4Mapper(const CMAPTable *cmap, const CMAPFormat4Encoding *header); 42 43 virtual ~CMAPFormat4Mapper(); 44 45 virtual LEGlyphID unicodeToGlyph(LEUnicode32 unicode32) const; 46 47 protected: CMAPFormat4Mapper()48 CMAPFormat4Mapper() {}; 49 50 private: 51 le_uint16 fEntrySelector; 52 le_uint16 fRangeShift; 53 const le_uint16 *fEndCodes; 54 const le_uint16 *fStartCodes; 55 const le_uint16 *fIdDelta; 56 const le_uint16 *fIdRangeOffset; 57 }; 58 59 class CMAPGroupMapper : public CMAPMapper 60 { 61 public: 62 CMAPGroupMapper(const CMAPTable *cmap, const CMAPGroup *groups, le_uint32 nGroups); 63 64 virtual ~CMAPGroupMapper(); 65 66 virtual LEGlyphID unicodeToGlyph(LEUnicode32 unicode32) const; 67 68 protected: CMAPGroupMapper()69 CMAPGroupMapper() {}; 70 71 private: 72 le_int32 fPower; 73 le_int32 fRangeOffset; 74 const CMAPGroup *fGroups; 75 }; 76 CMAPMapper(const CMAPTable * cmap)77inline CMAPMapper::CMAPMapper(const CMAPTable *cmap) 78 : fcmap(cmap) 79 { 80 // nothing else to do 81 } 82 ~CMAPMapper()83inline CMAPMapper::~CMAPMapper() 84 { 85 LE_DELETE_ARRAY(fcmap); 86 } 87 88 #endif 89 90