// Copyright (c) 2005  Tel-Aviv University (Israel).
// All rights reserved.
//
// This file is part of CGAL (www.cgal.org).
//
// $URL: https://github.com/CGAL/cgal/blob/v6.1/Boolean_set_operations_2/include/CGAL/General_polygon_set_2.h $
// $Id: include/CGAL/General_polygon_set_2.h b26b07a1242 $
// SPDX-License-Identifier: GPL-3.0-or-later OR LicenseRef-Commercial
//
// Author(s)     : Baruch Zukerman <baruchzu@post.tau.ac.il>
//                 Efi Fogel <efif@post.tau.ac.il>

#ifndef CGAL_GENERAL_POLYGON_SET_2_H
#define CGAL_GENERAL_POLYGON_SET_2_H

#include <CGAL/license/Boolean_set_operations_2.h>

#include <CGAL/disable_warnings.h>

#include <CGAL/basic.h>

#include <CGAL/Boolean_set_operations_2/Gps_default_dcel.h>
#include <CGAL/General_polygon_set_on_surface_2.h>
#include <CGAL/Arrangement_2/Arr_default_planar_topology.h>
#include <CGAL/Arrangement_2.h>

namespace CGAL {

// General_polygon_set_2
template <class Traits_, class Dcel_ = Gps_default_dcel<Traits_> >
class General_polygon_set_2 : public General_polygon_set_on_surface_2
  <Traits_, typename Default_planar_topology<Traits_, Dcel_>::Traits>
{
protected:
  typedef General_polygon_set_2<Traits_, Dcel_>           Self;

public:
  typedef Traits_                                         Traits_2;
  typedef Dcel_                                           Dcel;

  typedef General_polygon_set_on_surface_2 <Traits_2,
    typename Default_planar_topology<Traits_2, Dcel >::Traits>
                                                          Base;

  typedef CGAL::Arrangement_2<Traits_2, Dcel>             Arrangement_2;

  typedef typename Base::Polygon_2                        Polygon_2;
  typedef typename Base::Polygon_with_holes_2             Polygon_with_holes_2;

  // default constructor
  General_polygon_set_2() : Base() {}

  // constructor from a traits object
  General_polygon_set_2(const Traits_2& traits) : Base(traits) {}

  // constructor from a polygon
  explicit General_polygon_set_2(const Polygon_2& pgn) : Base(pgn) {}

  // constructor from a polygon with holes
  explicit General_polygon_set_2(const Polygon_with_holes_2& pwh) : Base(pwh) {}

  // constructor from a polygon and a traits object
  explicit General_polygon_set_2(const Polygon_2& pgn, const Traits_2& traits) :
    Base(pgn, traits)
  {}

  // constructor from a polygon with holes and a traits object
  explicit General_polygon_set_2(const Polygon_with_holes_2& pwh,
                                 const Traits_2& traits) :
    Base(pwh, traits)
  {}

  // For some reason the below functions (the ones that we call "using" for)
  // are hidden by the function in this class and are not found in the parent's
  // class (General_polygon_set_on_surface_2) when they are called on an
  // object of type General_polygon_set_2.
  // Check in the Vandervoorde / Stroustrup books what is the exact reason.
  // (There may be a better and more correct solution.)
  using Base::intersection;
  using Base::join;
  using Base::symmetric_difference;

  inline void intersection(const Self& ps1, const Self& ps2)
  {
    Base::intersection(static_cast<const Base&>(ps1),
                       static_cast<const Base&>(ps2));
  }

  inline void join(const Self& ps1, const Self& ps2)
  {
    Base::join(static_cast<const Base&>(ps1), static_cast<const Base&>(ps2));
  }

  inline void symmetric_difference(const Self& ps1, const Self& ps2)
  {
    Base::symmetric_difference(static_cast<const Base&>(ps1),
                               static_cast<const Base&>(ps2));
  }

  //@{

  /*! Obtain a const reference to the underlying arrangement
   * \return the underlying arrangement.
   */
  const Arrangement_2& arrangement() const
  { return *(static_cast<const Arrangement_2*>(this->m_arr)); }

  /*! Obtain a reference to the underlying arrangement
   * \return the underlying arrangement.
   */
  Arrangement_2& arrangement()
  { return *(static_cast<Arrangement_2*>(this->m_arr)); }

  //@}
};

} //namespace CGAL

#include <CGAL/enable_warnings.h>

#endif

