kc3-lang/ftgl/include/FTExtrdGlyph.h

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• Hash : 74efb3e8
  Author :
  Date : 2002-12-16T23:25:41
  

  Changes to the outline code in FTVectoriser

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• include/FTExtrdGlyph.h

• #ifndef     __FTExtrdGlyph__
  #define     __FTExtrdGlyph__
  
  #include <ft2build.h>
  #include FT_FREETYPE_H
  #include FT_GLYPH_H
  
  #include "FTGL.h"
  #include "FTGlyph.h"
  
  class FTVectoriser;
  
  /**
   * FTExtrdGlyph is a specialisation of FTGlyph for creating tessellated
   * extruded polygon glyphs.
   * 
   * @see FTGlyphContainer
   * @see FTVectoriser
   *
   */
  class FTGL_EXPORT FTExtrdGlyph : public FTGlyph
  {
      public:
          /**
           * Constructor
           *
           * @param glyph The Freetype glyph to be processed
           * @param depth The distance along the z axis to extrude the glyph
           */
          FTExtrdGlyph( FT_Glyph glyph, float depth);
  
          /**
           * Destructor
           */
          virtual ~FTExtrdGlyph();
  
          /**
           * Renders this glyph at the current pen position.
           *
           * @param pen   The current pen position.
           * @return      The advance distance for this glyph.
           */
          virtual float Render( const FTPoint& pen);
          
      private:
          /**
           * Calculate the normal vector to 2 points. This is 2D and ignores
           * the z component. The normal will be normalised
           *
           * @param a
           * @param b
           * @return
           */
          FTPoint GetNormal( const FTPoint &a, const FTPoint &b);
          
          
          /**
           * OpenGL display list
           */
          GLuint glList;
          
          /**
           * Distance to extrude the glyph
           */
          float depth;
      
  };
  
  
  #endif  //  __FTExtrdGlyph__
  
  

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