kc3-lang/ftgl/src/FTGlyphContainer.cpp

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• Hash : 56289ce6
  Author :
  Date : 2003-06-08T01:09:17
  

  Refactored FTGlyphContainer & FTCharmap. They now store FTGlyphs sequentially rather than by glyph index.

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• src/FTGlyphContainer.cpp

• #include    "FTGlyphContainer.h"
  #include    "FTGlyph.h"
  #include    "FTFace.h"
  #include    "FTCharmap.h"
  
  
  FTGlyphContainer::FTGlyphContainer( FTFace* f)
  :   face(f),
      charMap(0),
      err(0)
  {
      glyphs.push_back( NULL);
      charMap = new FTCharmap( face);
  }
  
  
  FTGlyphContainer::~FTGlyphContainer()
  {
      GlyphVector::iterator glyphIterator;
      for( glyphIterator = glyphs.begin(); glyphIterator != glyphs.end(); ++glyphIterator)
      {
          delete *glyphIterator;
      }
      
      glyphs.clear();
  }
  
  
  bool FTGlyphContainer::CharMap( FT_Encoding encoding)
  {
      bool result = charMap->CharMap( encoding);
      err = charMap->Error();
      return result;
  }
  
  
  unsigned int FTGlyphContainer::GlyphIndex( const unsigned int characterCode) const
  {
      return charMap->GlyphIndex( characterCode);
  }
  
  
  void FTGlyphContainer::Add( FTGlyph* tempGlyph, const unsigned int characterCode)
  {
      charMap->InsertIndex( characterCode, glyphs.size());
      glyphs.push_back( tempGlyph);
  }
  
  
  const FTGlyph* const FTGlyphContainer::Glyph( const unsigned int characterCode) const
  {
      unsigned int index = charMap->CharIndex( characterCode);
      return glyphs[index];
  }
  
  
  FTBBox FTGlyphContainer::BBox( const unsigned int characterCode) const
  {
      return glyphs[charMap->CharIndex( characterCode)]->BBox();
  }
  
  
  float FTGlyphContainer::Advance( const unsigned int characterCode, const unsigned int nextCharacterCode)
  {
      unsigned int left = charMap->GlyphIndex( characterCode);
      unsigned int right = charMap->GlyphIndex( nextCharacterCode);
      
      float width = face->KernAdvance( left, right).x;
      width += glyphs[charMap->CharIndex( characterCode)]->Advance();
      
      return width;
  }
  
  
  FTPoint FTGlyphContainer::Render( const unsigned int characterCode, const unsigned int nextCharacterCode, FTPoint penPosition)
  {
      FTPoint kernAdvance;
      float advance = 0;
      
      unsigned int left = charMap->GlyphIndex( characterCode);
      unsigned int right = charMap->GlyphIndex( nextCharacterCode);
      
      kernAdvance = face->KernAdvance( left, right);
          
      if( !face->Error())
      {
          advance = glyphs[charMap->CharIndex( characterCode)]->Render( penPosition);
      }
      
      kernAdvance.x = advance + kernAdvance.x;
  //  kernAdvance.y = advance.y + kernAdvance.y;
      return kernAdvance;
  }
  

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