kc3-lang/ftgl/src/FTFace.cpp

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• Hash : 262b30a5
  Author :
  Date : 2001-09-17T20:59:34
  

  Implemented FTCharmap class

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• src/FTFace.cpp

• #include	"FTFace.h"
  #include	"FTLibrary.h"
  #include	"FTCharmap.h"
  #include	"FTGL.h"
  
  
  FTFace::FTFace()
  :	ftFace(0),
  	numCharMaps(0),
  	charMap(0),
  	numGlyphs(0),
  	err(0)
  {}
  
  
  FTFace::~FTFace()
  {
  	delete charMap;
  	Close();
  }
  
  
  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
      {
  		charMap = new FTCharmap( *ftFace);
  		return true;
  	}
  }
  
  
  void FTFace::Close()
  {
  	if( ftFace)
  	{
  		FT_Done_Face( *ftFace);
  		delete ftFace;
  		ftFace = 0;
  	}
  }
  
  
  FTSize& FTFace::Size( const unsigned int size, const unsigned int res)
  {
  	if( !charSize.CharSize( ftFace, size, res, res))
  	{
  		err = charSize.Error();
  	}
  	
  	return charSize;
  }
  
  
  bool FTFace::CharMap( FT_Encoding encoding)
  {
  	return charMap->CharMap( encoding);
  }
  
  
  unsigned int FTFace::CharIndex( unsigned int index) const
  {
  	return charMap->CharIndex( index);
  }
  
  
  FT_Vector& FTFace::KernAdvance( unsigned int index1, unsigned 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);
  		if( !err)
  		{	
  			kernAdvance.x /= 64; kernAdvance.y /= 64;
  		}
  	}
  	
  	return kernAdvance;
  }
  
  
  FT_Glyph* FTFace::Glyph( unsigned int index, FT_Int load_flags)
  {
  	err = FT_Load_Glyph( *ftFace, index, load_flags);	
  	err = FT_Get_Glyph( (*ftFace)->glyph, &ftGlyph);
  		
  	if( !err)
  	{
  		return &ftGlyph;
  	}
  	else
  	{
  		return NULL;
  	}
  }
  
  
  
  

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