icuSources/test/letest/cmaps.h

   1 // © 2016 and later: Unicode, Inc. and others.
   2 // License & terms of use: http://www.unicode.org/copyright.html
   3 /***************************************************************************
   4 *
   5 *   Copyright (C) 1998-2013, International Business Machines
   6 *   Corporation and others.  All Rights Reserved.
   7 *
   8 ************************************************************************/
   9
  10
  11 #ifndef __CMAPS_H
  12 #define __CMAPS_H
  13
  14 #include "layout/LETypes.h"
  15 //#include "letest.h"
  16 #include "sfnt.h"
  17
  18 class CMAPMapper
  19 {
  20 public:
  21     virtual LEGlyphID unicodeToGlyph(LEUnicode32 unicode32) const = 0;
  22
  23     virtual ~CMAPMapper();
  24
  25     static CMAPMapper *createUnicodeMapper(const CMAPTable *cmap);
  26
  27 protected:
  28     CMAPMapper(const CMAPTable *cmap);
  29
  30     CMAPMapper() {};
  31
  32 private:
  33     const CMAPTable *fcmap;
  34 };
  35
  36 class CMAPFormat4Mapper : public CMAPMapper
  37 {
  38 public:
  39     CMAPFormat4Mapper(const CMAPTable *cmap, const CMAPFormat4Encoding *header);
  40
  41     virtual ~CMAPFormat4Mapper();
  42
  43     virtual LEGlyphID unicodeToGlyph(LEUnicode32 unicode32) const;
  44
  45 protected:
  46     CMAPFormat4Mapper() {};
  47
  48 private:
  49     le_uint16       fEntrySelector;
  50     le_uint16       fRangeShift;
  51     const le_uint16 *fEndCodes;
  52     const le_uint16 *fStartCodes;
  53     const le_uint16 *fIdDelta;
  54     const le_uint16 *fIdRangeOffset;
  55 };
  56
  57 class CMAPGroupMapper : public CMAPMapper
  58 {
  59 public:
  60     CMAPGroupMapper(const CMAPTable *cmap, const CMAPGroup *groups, le_uint32 nGroups);
  61
  62     virtual ~CMAPGroupMapper();
  63
  64     virtual LEGlyphID unicodeToGlyph(LEUnicode32 unicode32) const;
  65
  66 protected:
  67     CMAPGroupMapper() {};
  68
  69 private:
  70     le_int32 fPower;
  71     le_int32 fRangeOffset;
  72     const CMAPGroup *fGroups;
  73 };
  74
  75 inline CMAPMapper::CMAPMapper(const CMAPTable *cmap)
  76     : fcmap(cmap)
  77 {
  78     // nothing else to do
  79 }
  80
  81 inline CMAPMapper::~CMAPMapper()
  82 {
  83     LE_DELETE_ARRAY(fcmap);
  84 }
  85
  86 #endif
  87