kc3-lang/ftgl/src/FTOutlineGlyph.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/FTOutlineGlyph.cpp

• #include    "FTOutlineGlyph.h"
  #include    "FTVectoriser.h"
  
  
  FTOutlineGlyph::FTOutlineGlyph( FT_Glyph glyph)
  :   FTGlyph(),
      vectoriser(0),
      numPoints(0),
      numContours(0),
      contourLength(0),
      data(0),
      glList(0)
  {
      if( ft_glyph_format_outline != glyph->format)
      {
          return;
      }
  
      vectoriser = new FTVectoriser( glyph);
      
      vectoriser->Process();
      
      numPoints = vectoriser->points();
      numContours = vectoriser->contours();
      
      bBox = FTBBox( glyph);
      advance = glyph->advance.x >> 16;
      
      if ( ( numContours < 1) || ( numPoints < 3))
      {
          delete vectoriser;
          return;
      }
      
      contourLength = new int[ numContours];
      for( int cn = 0; cn < numContours; ++cn)
      {
          contourLength[cn] = vectoriser->contourSize( cn);
      }
      
      data = new FTGL_DOUBLE[ numPoints * 3];
      vectoriser->GetOutline( data);
      
      delete vectoriser;
      
      int d = 0;
      glList = glGenLists(1);
      glNewList( glList, GL_COMPILE);
          for( int c = 0; c < numContours; ++c)
          {
              glBegin( GL_LINE_LOOP);
              for( int p = 0; p < contourLength[c]; ++p)
              {
                  glVertex2dv( data + d);
                  d += 3;
              }
              glEnd();
          }
      glEndList();
  
      delete [] data; // FIXME
      delete [] contourLength; // FIXME
  
      // discard glyph image (bitmap or not)
      FT_Done_Glyph( glyph); // Why does this have to be HERE
  }
  
  
  FTOutlineGlyph::~FTOutlineGlyph()
  {
  //  delete [] data;
  //  delete [] contourLength;
  }
  
  
  float FTOutlineGlyph::Render( const FT_Vector& pen)
  {
      if( glList)
      {
          glTranslatef( pen.x, pen.y, 0);
              glCallList( glList);
          glTranslatef( -pen.x, -pen.y, 0);
      }
      
      return advance;
  }
  
  

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