kc3-lang/ftgl/src/FTGlyphContainer.cpp

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• Hash : 9013e3ec
  Author :
  Date : 2002-06-20T08:22:06
  

  Changes for VTK Removed tabs Removed mmgr Optimisations for loading pixel based fonts Minor changes

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• src/FTGlyphContainer.cpp

• #include	"FTGlyphContainer.h"
  #include	"FTGlyph.h"
  #include	"FTFace.h"
  
  
  FTGlyphContainer::FTGlyphContainer( FTFace* f, unsigned int g, bool p)
  :	preCache( p),
  	numGlyphs( g),
  	face( f),
  	err( 0)
  {
  	// Fill the glyphlist with null glyphs
  	glyphs.resize( g, NULL);
  }
  
  
  FTGlyphContainer::~FTGlyphContainer()
  {
  	vector<FTGlyph*>::iterator iter;
  	for( iter = glyphs.begin(); iter != glyphs.end(); ++iter)
  	{
  		if( *iter)
  		{
  			delete *iter;
  		}
  	}
  	
  	glyphs.clear();
  }
  
  
  bool FTGlyphContainer::Add( FTGlyph* tempGlyph, unsigned int g)
  {
  	glyphs[g] = tempGlyph;
  	return true;
  }
  
  
  FTGlyph* FTGlyphContainer::Glyph( const unsigned int c) const
  {
  	return glyphs[face->CharIndex( c)];
  }
  
  
  FTBBox FTGlyphContainer::BBox( const unsigned int index) const
  {
  	return glyphs[face->CharIndex( index)]->BBox();
  }
  
  
  float FTGlyphContainer::Advance( unsigned int index, unsigned int next)
  {
  	unsigned int left = face->CharIndex( index);
  	unsigned int right = face->CharIndex( next);
  	
  	float width = face->KernAdvance( left, right).x;
  	width += glyphs[left]->Advance();
  	
  	return width;
  }
  
  
  FT_Vector& FTGlyphContainer::render( unsigned int index, unsigned int next, FT_Vector pen)
  {
  	kernAdvance.x = 0; kernAdvance.y = 0;
  	
  	unsigned int left = face->CharIndex( index);
  	unsigned int right = face->CharIndex( next);
  	
  	kernAdvance = face->KernAdvance( left, right);
  		
  	if( !face->Error())
  	{
  		advance = glyphs[left]->Render( pen);
  	}
  	
  	kernAdvance.x = advance + kernAdvance.x;
  //	kernAdvance.y = advance.y + kernAdvance.y;
  	return kernAdvance;
  }
  

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