LinePointRep.h

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/* -*- mode: c++ -*- */

#ifndef _LinePointRep_H_
#define _LinePointRep_H_

#include "PointRepBase.h"

namespace hippodraw {

class Rect;
class Point;

class MDL_HIPPOPLOT_API LinePointRep : public PointRepBase
{

private:

   // The drawing rectangle boundaries.
   double m_xmin, m_xmax, m_ymin, m_ymax;

   const Rect * m_user_rect;

  void transformValues ( const DataSource * source,
                         TransformBase * transform );

   bool outside_box(std::vector<double>::const_iterator ix,
                    std::vector<double>::const_iterator iy) const;

   bool straddles_x_boundary(std::vector<double>::const_iterator ix,
                             std::vector<double>::const_iterator iy,
                             Point & pt1, Point & pt2, 
                             double & distance) const;

   bool straddles_y_boundary(std::vector<double>::const_iterator ix,
                             std::vector<double>::const_iterator iy,
                             Point & pt1, Point & pt2, 
                             double & distance) const;

   bool cornerCase(std::vector<double>::const_iterator ix,
                   std::vector<double>::const_iterator iy,
                   std::vector<double> & x, std::vector<double> & y) const;

   double interpolate(double x, std::vector<double>::const_iterator ix,
                      std::vector<double>::const_iterator iy) const;

   double separation(const Point & pt1, const Point & pt2) const;

   void findEndPoints(std::vector<double>::const_iterator ix,
                      std::vector<double>::const_iterator iy,
                      Point & pt1, Point & pt2) const;
 
   void addEndPoints(std::vector<double>::const_iterator ix,
                     std::vector<double>::const_iterator iy,
                     std::vector<double> & x, std::vector<double> & y) const;

protected:

  std::vector< double > m_x;

  std::vector< double > m_y;

  hippodraw::Line::Style m_line_style;

  LinePointRep ( const char * name, float size );

  void drawValues ( ViewBase * view );

public:
  LinePointRep();

  LinePointRep ( float size );

  LinePointRep( const LinePointRep & point_rep );

  virtual ~LinePointRep();

  virtual RepBase * clone();

  virtual void setStyle ( unsigned int style );

  virtual unsigned int getStyle ( ) const;

  virtual void drawProjectedValues ( const DataSource * ntuple,
                                     TransformBase * transform,
                                     ViewBase * previews );

  virtual bool uses ( hippodraw::Line::Style ) const;

};

} // namespace hippodraw

#endif // _LinePointRep_H_