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#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 index of the point in the curve.
* @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
*/
unsigned int PointCount() const { return (unsigned int) 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);
inline void AddPoint( float x, float y);
/**
* De Casteljau (bezier) algorithm contributed by Jed Soane
* Evaluates a quadratic or conic (second degree) curve
*/
inline void evaluateQuadraticCurve();
/**
* De Casteljau (bezier) algorithm contributed by Jed Soane
* Evaluates a cubic (third degree) curve
*/
inline void evaluateCubicCurve();
/**
* The list of points in this contour
*/
typedef FTVector<FTPoint> PointVector;
PointVector pointList;
/**
* 2D array storing values of de Casteljau algorithm.
*/
float controlPoints[4][2];
};
#endif // __FTContour__
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