kc3-lang/ftgl/include/FTContour.h

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• Hash : 1b2a2f13
  Author :
  Date : 2002-12-17T03:46:58
  

  Renamed 'Points' to 'PointCount'

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• include/FTContour.h

• #ifndef     __FTContour__
  #define     __FTContour__
  
  #include "FTPoint.h"
  #include "FTVector.h"
  #include "FTGL.h"
  
  
  /**
   * FTContour class is a container of points that describe a vector font
   * outline. It is used as a container for the output of the bezier curve
   * evaluator in FTVectoriser.
   *
   * @see FTOutlineGlyph
   * @see FTPolyGlyph
   * @see FTPoint
   */
  class FTGL_EXPORT FTContour
  {
      public:
          /**
           * Constructor
           *
           * @param contour
           * @param pointTags
           * @param numberOfPoints
           */
          FTContour( FT_Vector* contour, char* pointTags, unsigned int numberOfPoints);
  
          /**
           * Destructor
           */
          ~FTContour()
          {
              pointList.clear();
          }
          
          /**
           * Return a point at index.
           *
           * @param the index in the curve of the point.
           * @return const point reference
           */
          const FTPoint& Point( unsigned int index) const { return pointList[index];}
  
          /**
           * How many points define this contour
           *
           * @return the number of points in this contour
           */
          size_t PointCount() const { return pointList.size();}
  
      private:
          /**
           * Add a point to this contour. This function tests for duplicate
           * points.
           *
           * @param point The point to be added to the contour.
           */
          inline void AddPoint( FTPoint point);
          
          /**
           * De Casteljau (bezier) algorithm contributed by Jed Soane
           * Evaluates a quadratic or conic (second degree) curve
           */
          void evaluateQuadraticCurve();
  
          /**
           * De Casteljau (bezier) algorithm contributed by Jed Soane
           * Evaluates a cubic (third degree) curve
           */
          void evaluateCubicCurve();
  
          /**
           *  The list of points in this contour
           */
          typedef FTVector<FTPoint> PointVector;
          PointVector pointList;
          
          /**
           * 2D array storing values of de Casteljau algorithm.
           */
          float bValues[4][2];
  };
  
  #endif // __FTContour__
  

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