kc3-lang/ftgl/include/FTExtrdGlyph.h

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• Hash : ccddd5df
  Author :
  Date : 2001-11-29T05:10:21
  

  Added Winding fuction to colc area for a full contour rather than part of one

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• include/FTExtrdGlyph.h

• #ifndef		__FTExtrdGlyph__
  #define		__FTExtrdGlyph__
  
  #include "FTGL.h"
  
  #include <ft2build.h>
  #include FT_FREETYPE_H
  #include FT_GLYPH_H
  
  #include "FTGlyph.h"
  
  class FTVectoriser;
  
  /**
   * FTPolyGlyph is a specialisation of FTGlyph for creating tessellated
   * polygon glyphs.
   * 
   * @see FTGlyphContainer
   * @see FTVectoriser
   *
   */
  class FTGL_EXPORT FTExtrdGlyph : public FTGlyph
  {
  	public:
  		/**
  		 * Constructor
  		 *
  		 * @param glyph	The Freetype glyph to be processed
  		 */
  		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 FT_Vector& pen);
  		
  	private:
  		/**
  		 * Calculate the winding direction of a contour.
  		 *
  		 * This uses the signed area of the contour. It is required because
  		 * freetype doesn't do this despite the docs saying it does:(
  		 */
  		bool Winding( int numPoints, double *points);
  		
  		/**
  		 * An object that helps convert freetype outlines into point
  		 * data
  		 */
  		FTVectoriser* vectoriser;
  
  		/**
  		 * The total number of points in the Freetype outline
  		 */
  		int numPoints;
  
  		/**
  		 * Pointer to the point data
  		 */
  		double* frontMesh;
  		double* backMesh;
  		double* sidemesh;
  		
  		/**
  		 * OpenGL display list
  		 */
  		GLuint glList;
  		
  		float depth;
  	
  };
  
  
  #endif	//	__FTExtrdGlyph__
  
  

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