kc3-lang/ftgl/include/FTVectoriser.h

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  Commit

• Author : henry
  Date : 2001-09-16 21:31:38
  Hash : af2bc912
  Message : Minor tidy ups

• include/FTVectoriser.h

• #ifndef		__FTVectoriser__
  #define		__FTVectoriser__
  
  #include <vector>
  
  #include <ft2build.h>
  #include FT_FREETYPE_H
  #include FT_GLYPH_H
  
  #include "FTGlyph.h"
  
  using namespace std;
  
  class ftPoint
  {
  	public:
  		ftPoint()
  		: x(0), y(0), z(0)
  		{}
  		
  		ftPoint( const float X, const float Y, const float Z)
  		: x(X), y(Y), z(Z)
  		{}
  		
  		friend bool operator == ( const ftPoint &a, const ftPoint &b) 
  		{
  			return((a.x == b.x) && (a.y == b.y) && (a.z == b.z));
  		}
  
  		friend bool operator != ( const ftPoint &a, const ftPoint &b) 
  		{
  			return((a.x != b.x) || (a.y != b.y) || (a.z != b.z));
  		}
  		
  		float x, y, z; // FIXME make private
  		
  	private:
  };
  
  
  class FTContour
  {
  	public:
  		// methods
  		FTContour();
  		~FTContour();
  	
  		void AddPoint( const float x, const float y);
  		
  		int size() const { return pointList.size();}
  
  		// attributes
  		vector< ftPoint> pointList;
  		float ctrlPtArray[4][2];
  		
  	private:
  		// methods
  
  		// attributes
  		const unsigned int kMAXPOINTS;
  };
  
  
  class FTVectoriser
  {
  	public:
  		// methods
  		FTVectoriser( FT_Glyph glyph);
  		virtual ~FTVectoriser();
  		
  		bool Ingest();
  		void Output( double* d);
  		int points();
  		int contours() const { return contourList.size();}
  		int contourSize( int c) const { return contourList[c]->size();}
  		int ContourFlag() const { return contourFlag;}
  		
  		// attributes
  		
  	private:
  		// methods
  		int Conic( const int index, const int first, const int last);
  		int Cubic( const int index, const int first, const int last);
  		void deCasteljau( const float t, const int n);
  		void evaluateCurve( const int n);
  
  		// attributes
  		vector< const FTContour*> contourList;
  			
  		FTContour* contour;
  		int contourFlag;
  
  		FT_Outline ftOutline;
  		
  		 // Magic numbers -- #define MAX_DEG 4
  		float bValues[4][4][2];	//3D array storing values of de Casteljau algorithm.
  		float ctrlPtArray[4][2]; // Magic numbers
  		
  		const float kBSTEPSIZE;
  
  };
  
  
  #endif	//	__FTVectoriser__