//
//  Filename         : LineRep.h
//  Author(s)        : Stephane Grabli
//  Purpose          : Class to define the representation of 3D Line.
//  Date of creation : 26/03/2002
//
///////////////////////////////////////////////////////////////////////////////


//
//  Copyright (C) : Please refer to the COPYRIGHT file distributed 
//   with this source distribution. 
//
//  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.
//
//  This program is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details.
//
//  You should have received a copy of the GNU General Public License
//  along with this program; if not, write to the Free Software
//  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
//
///////////////////////////////////////////////////////////////////////////////

#ifndef  LINEREP_H
# define LINEREP_H

# include <vector>
# include <list>
# include "Rep.h"
# include "../system/FreestyleConfig.h"

using namespace std;

/*! Base class for all lines objects */
class LIB_SCENE_GRAPH_EXPORT LineRep : public Rep
{
public:
  
  /*! Line description style */
  enum LINES_STYLE{LINES, LINE_STRIP, LINE_LOOP};
  inline LineRep() : Rep() {_width = 0.f;}

  /*! Builds a single line from 2 vertices
   *  v1
   *    first vertex
   *  v2
   *    second vertex
   */
  inline LineRep(const Vec3r& v1, const Vec3r& v2)
    : Rep()
  {
    setStyle(LINES);
    AddVertex(v1);
    AddVertex(v2);
    _width = 0.f;
  }

  /*! Builds a line rep from a vertex chain */
  inline LineRep(const vector<Vec3r>& vertices)
    : Rep()
  {
    _vertices = vertices;
    setStyle(LINE_STRIP);
    _width = 0.f;
  }

  /*! Builds a line rep from a vertex chain */
  inline LineRep(const list<Vec3r>& vertices)
    : Rep()
  {
    for(list<Vec3r>::const_iterator v=vertices.begin(), end=vertices.end();
    v!=end;
    v++)
    {
      _vertices.push_back(*v);
    }
    setStyle(LINE_STRIP);
    _width = 0.f;
  }

  virtual ~LineRep() 
  {
  _vertices.clear();
  } 

  /*! accessors */
  inline const LINES_STYLE style() const {return _Style;}
  inline const vector<Vec3r>& vertices() const {return _vertices;}
  inline float width() const {return _width;}

  /*! modifiers */
  inline void setStyle(const LINES_STYLE iStyle) {_Style = iStyle;}
  inline void AddVertex(const Vec3r& iVertex) {_vertices.push_back(iVertex);}
  inline void setVertices(const vector<Vec3r>& iVertices)
  {
    if(0 != _vertices.size())
    {
      _vertices.clear();
    }
    for(vector<Vec3r>::const_iterator v=iVertices.begin(), end=iVertices.end();
        v!=end;
        v++)
        {
          _vertices.push_back(*v);
        }
  }
  inline void setWidth(float iWidth) {_width=iWidth;}

  /*! Accept the corresponding visitor */
  virtual void accept(SceneVisitor& v) {
    Rep::accept(v);
    v.visitLineRep(*this);
  }

  /*! Computes the line bounding box.*/
  virtual void ComputeBBox();

private:
  LINES_STYLE _Style;
  vector<Vec3r> _vertices;
  float _width;
};

#endif // LINEREP_H