kc3-lang/ftgl/src/FTFace.cpp

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• Hash : 9aa9fe44
  Author :
  Date : 2001-08-19T22:31:25
  

  Implemented charmap, CharIndex and kernAdvance functions. These are now wrappers for the freetype functions and the rest of FTGL should not call freetype directly.

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• src/FTFace.cpp

• #include	"FTFace.h"
  #include	"FTLibrary.h"
  #include	"FTGL.h"
  
  
  FTFace::FTFace()
  :	ftFace(0),
  	numCharMaps(0),
  	numGlyphs(0)
  {}
  
  
  FTFace::~FTFace()
  {
  	if( ftFace)
  	{
  		Close();
  		delete ftFace; // is this a prob?
  		ftFace = 0;
  	}
  }
  
  
  bool FTFace::Open( const char* filename)
  {
  	ftFace = new FT_Face;
  	err = FT_New_Face( *FTLibrary::Instance().GetLibrary(), filename, 0, ftFace);
  
  	if( err)
      {
  		delete ftFace;
  		ftFace = 0;
  	    return false;
      }
      else
      {
  		return true;
  	}
  }
  
  
  void FTFace::Close()
  {
  	FT_Done_Face( *ftFace);
  }
  
  
  FTSize& FTFace::Size( const int size, const int res )
  {
  	charSize.CharSize( ftFace, size, res, res);
  	return charSize;
  }
  
  
  bool FTFace::CharMap( FT_Encoding encoding )
  {
  // 	ft_encoding_none, 0, 0, 0, 0
  // 	ft_encoding_symbol,  's', 'y', 'm', 'b'
  // 	ft_encoding_unicode, 'u', 'n', 'i', 'c'
  // 	ft_encoding_latin_2, 'l', 'a', 't', '2'
  // 	ft_encoding_sjis,    's', 'j', 'i', 's'
  // 	ft_encoding_gb2312,  'g', 'b', ' ', ' '
  // 	ft_encoding_big5,    'b', 'i', 'g', '5'
  // 	ft_encoding_wansung, 'w', 'a', 'n', 's'
  // 	ft_encoding_johab,   'j', 'o', 'h', 'a'
  // 	ft_encoding_adobe_standard, 'A', 'D', 'O', 'B'
  // 	ft_encoding_adobe_expert,   'A', 'D', 'B', 'E'
  // 	ft_encoding_adobe_custom,   'A', 'D', 'B', 'C'
  // 	ft_encoding_apple_roman, 'a', 'r', 'm', 'n'
  	
  	err = FT_Select_Charmap( *ftFace, encoding );
  	return !err;
  }
  
  
  int FTFace::CharIndex( int index ) const
  {
  	return FT_Get_Char_Index( *ftFace, index);
  }
  
  
  FT_Vector& FTFace::KernAdvance( int index1, int index2 )
  {
  	kernAdvance.x = 0; kernAdvance.y = 0;
  	
  	if( FT_HAS_KERNING((*ftFace)) && index1 && index2)
  	{
  		err = FT_Get_Kerning( *ftFace, index1, index2, ft_kerning_unfitted, &kernAdvance);	
  	}
  	
  	return kernAdvance;
  }
  

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