kc3-lang/ftgl/src/FTCharmap.cpp

Branch : - branch - master - tag -

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  Commit

• Author : henry
  Date : 2002-06-21 08:20:08
  Hash : 157770a9
  Message : Remove <map> replaced with FTCharToGlyphIndexMap

• src/FTCharmap.cpp

• #include    "FTCharmap.h"
  
  
  FTCharmap::FTCharmap( FT_Face face)
  :   ftFace( face),
      err(0)
  {
      // Check that the default is valid
      if( !face->charmap)
      {
          FT_Set_Charmap( ftFace, ftFace->charmaps[0]);
      }
      
      ftEncoding = face->charmap->encoding;
  }
  
  
  FTCharmap::~FTCharmap()
  {
      charMap.clear();
  }
  
  
  bool FTCharmap::CharMap( FT_Encoding encoding)
  {
      if( ftEncoding == encoding)
      {
          return true;
      }
      
      err = FT_Select_Charmap( ftFace, encoding );
      
      if( !err)
      {
          ftEncoding = encoding;
          charMap.clear();
      }
      
      return !err;
  }
  
  
  bool FTCharmap::CharMap( FT_UShort platform, FT_UShort encoding)
  {
      FT_CharMap  found = 0;
      FT_CharMap  charmap;
   
      for( int n = 0; n < ftFace->num_charmaps; n++ )
      {
          charmap = ftFace->charmaps[n];
  
          if( charmap->platform_id == platform && charmap->encoding_id == encoding)
          {
              found = charmap;
              break;
          }
      }
   
      if( !found )
      {
          return false;
      }
   
      if( ftEncoding == found->encoding)
      {
          return true;
      }
      
      /* now, select the charmap for the face object */
      err = FT_Set_Charmap( ftFace, found );
      
      if( !err)
      {
          ftEncoding = found->encoding;
          charMap.clear();
      }
      
      return !err;
  }
  
  
  unsigned int FTCharmap::CharIndex( unsigned int index )
  {
      const CharacterMap::GlyphIndex *result = charMap.find(index);
      
      if( !result)
      {
          unsigned int glyph = FT_Get_Char_Index( ftFace, index);
          charMap.insert( index, glyph);
          return glyph;
      }
      else
      {
          return *result;
      }
  }