source/glyphlist.h

   1 /* This file is part of Shapes.
   2  *
   3  * Shapes is free software: you can redistribute it and/or modify
   4  * it under the terms of the GNU General Public License as published by
   5  * the Free Software Foundation, either version 3 of the License, or
   6  * any later version.
   7  *
   8  * Shapes is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License
  14  * along with Shapes.  If not, see <http://www.gnu.org/licenses/>.
  15  *
  16  * Copyright 2008 Henrik Tidefelt
  17  */
  18
  19 #pragma once
  20
  21 #include "ptrowner.h"
  22 #include "charptrless.h"
  23
  24 #include <vector>
  25 #include <map>
  26 #include <iostream>
  27
  28 // This may not be the appropriate namespace...
  29 namespace FontMetrics
  30 {
  31
  32         class GlyphList
  33         {
  34         public:
  35                 // This shall be encoded as iconv's Helpers::theUCS4EncodingName.
  36                 // Please refer to charconverters.h for the exact meaning of this.
  37                 typedef uint32_t UnicodeType;
  38         private:
  39                 // This is only a memory, with no particular order of its items.
  40                 PtrOwner_back_Access< std::vector< const char * > > nameMem_;
  41
  42                 // This is idexed by size_t and maps to a name or a null pointer.
  43                 static const size_t TABLE_SIZE = 65536;
  44                 std::vector< const char * > namePtrs_;
  45                 std::map< UnicodeType, const char * > namePtrsWide_;
  46
  47                 // This is the reverse map.
  48                 std::map< const char *, UnicodeType, charPtrLess > nameMap_;
  49
  50         public:
  51                 GlyphList( std::istream & iFile );
  52                 ~GlyphList( );
  53
  54                 // Returns true on success.
  55                 bool UCS4_to_name( UnicodeType code, const char ** dst ) const;
  56                 bool UTF8_to_name( const char * code, const char ** dst ) const;
  57
  58                 // Returns true on success.
  59                 bool name_to_UCS4( const char * name, UnicodeType * dst ) const;
  60
  61                 size_t size( ) const;
  62
  63         private:
  64                 void readfile( std::istream & iFile );
  65         };
  66
  67 }