// Copyright (c) 2005  INRIA Sophia-Antipolis (France).
// All rights reserved.
//
// This file is part of CGAL (www.cgal.org).
//
// $URL: https://github.com/CGAL/cgal/blob/v6.1/Mesh_3/include/CGAL/Mesh_3/Mesher_level_default_implementations.h $
// $Id: include/CGAL/Mesh_3/Mesher_level_default_implementations.h b26b07a1242 $
// SPDX-License-Identifier: GPL-3.0-or-later OR LicenseRef-Commercial
//
//
// Author(s)     : Laurent RINEAU, Clement JAMIN

#ifndef CGAL_MESH_3_MESHER_LEVEL_DEFAULT_IMPLEMENTATIONS_H
#define CGAL_MESH_3_MESHER_LEVEL_DEFAULT_IMPLEMENTATIONS_H

#include <CGAL/license/Mesh_3.h>


#include <CGAL/Mesh_3/Mesher_level.h>

namespace CGAL { namespace Mesh_3 {

/** This class implements the two get_triangulation_ref() functions.
    \param Tr The triangulation type */
template <class Tr>
class Triangulation_ref_impl
{
  Tr& tr;
public:
  Triangulation_ref_impl(Tr& t) : tr(t)
  {
  }

  Tr& triangulation_ref_impl()
  {
    return tr;
  }
  const Tr& triangulation_ref_impl() const
  {
    return tr;
  }

}; // end class Triangulation_ref_impl<Tr>

/** This struct implements an empty private_test_point_conflict_impl()
    function. */
struct No_private_test_point_conflict
{
  template <typename Point, typename Zone>
  Mesher_level_conflict_status
  private_test_point_conflict_impl(const Point&, const Zone&) const
  {
    return NO_CONFLICT;
  }
}; // end No_private_test_point_conflict

/** This struct implements an empty test_point_conflict_from_superior_impl()
    function. */
struct No_test_point_conflict_from_superior
{
  // For sequential
  template <typename Point, typename Zone>
  Mesher_level_conflict_status
  test_point_conflict_from_superior_impl(const Point&, const Zone&) const
  {
    return NO_CONFLICT;
  }

  // For parallel
  template <typename Point, typename Zone, typename Mesh_visitor>
  Mesher_level_conflict_status
  test_point_conflict_from_superior_impl(const Point&, const Zone&,
                                         Mesh_visitor &) const
  {
    return NO_CONFLICT;
  }
}; // end No_test_point_conflict_from_superior

/** This struct implements empty functions:
      - private_test_point_conflict_impl() and
      - test_point_conflict_from_superior_impl().
*/
struct No_test_point_conflict :
  public No_private_test_point_conflict,
  public No_test_point_conflict_from_superior
{
};

/** This struct implements an empty before_insertion_impl()
    function. */
struct No_before_insertion
{
  template <typename Cell_handle, typename Point, typename Zone>
  void before_insertion_impl(const Cell_handle&, const Point&,
                             Zone& )
  {
  }
}; // end No_before_insertion

/** This struct implements an empty after_insertion_impl()
    function. */
struct No_after_insertion
{
  template <typename Vertex_handle>
  void after_insertion_impl(const Vertex_handle&)
  {
  }
}; // end No_after_insertion

/** This struct implements an empty after_insertion_impl()
    function. */
struct No_after_no_insertion
{
  template <typename Cell_handle, typename Point, typename Zone>
  void after_no_insertion_impl(const Cell_handle&, const Point&,
                               const Zone& )
  {
  }
}; // end No_after_no_insertion

/** This struct implements empty functions:
      - before_insertion_impl(),
      - after_insertion_impl(),
      - after_no_insertion_impl()
*/
struct No_before_after_insertion :
  public No_after_insertion,
  public No_before_insertion,
  public No_after_no_insertion
{
};

/** This struct implements an empty before_conflicts_impl() function. */
struct No_before_conflicts {
  template <typename Face_handle, typename Point>
  void before_conflicts_impl(const Face_handle&, const Point&)
  {
  }
};

} }  // end namespace CGAL::Mesh_3

#endif // CGAL_MESH_3_MESHER_LEVEL_DEFAULT_IMPLEMENTATIONS_H

