//-*-c++-*-
/**
 Authors: David Auber, Patrick Mary, Morgan Mathiaut
 from the LaBRI Visualization Team
 Email : auber@tulip-software.org
 Last modification : 22/01/2009 
 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by  
 the Free Software Foundation; either version 2 of the License, or     
 (at your option) any later version.
*/

#ifndef GLCIRCLE_H
#define GLCIRCLE_H

#include <tulip/Color.h>
#include <tulip/Coord.h>

#include "tulip/GlPolygon.h"

namespace tlp {

  /** \brief General class used to render circles as GlEntity.
   *
   * This class is a generic class to render circles as GlEntity.
   */
  class TLP_GL_SCOPE GlCircle : public GlPolygon {
  public:
    /**
     * Constructor
     */
    GlCircle(const Coord &center = Coord(0,0,0),
		float radius = 1.,
		const Color &outlineColor = Color(255, 0 , 0 , 255),
		const Color &fillColor = Color (0, 0, 255,255),
		bool filled = false,
		bool outlined = true,
		float startAngle = 0.0,
		unsigned int segments = 10);

    /**
     * Accessor in writing to the center, the radius and the startAngle of the circle
     */
    void set(const Coord &center, float radius, float startAngle);

    /**
     * return the fill color of the circle (i parameters is not use)
     * This function is write to overload the GlPolygon function
     */
    virtual const Color& fcolor(const unsigned int i) const {return GlPolygon::fcolor(0);}
    /**
     * return the fill color of the circle (i parameters is not use)
     * This function is write to overload the GlPolygon function
     */
    virtual Color& fcolor(const unsigned int i) {return GlPolygon::fcolor(0);}

    /**
     * return the outline color of the circle (i parameters is not use)
     * This function is write to overload the GlPolygon function
     */
    virtual const Color& ocolor(const unsigned int i) const {return GlPolygon::ocolor(0);}
    /**
     * return the outline color of the circle (i parameters is not use)
     * This function is write to overload the GlPolygon function
     */
    virtual Color& ocolor(const unsigned int i) {return GlPolygon::ocolor(0);}

    /**
     * Function to export data in XML
     */
    virtual void getXML(xmlNodePtr rootNode);
  };
}

#endif