// ======================================================================
//
// Copyright (c) 1999 The CGAL Consortium
//
// This software and related documentation is part of an INTERNAL release
// of the Computational Geometry Algorithms Library (CGAL). It is not
// intended for general use.
//
// ----------------------------------------------------------------------
// 
// release       : 
// release_date  : 
// 
// file          : Point_2.h
// package       : _2
// revision      : $Revision$
// revision_date : $Date$
// author(s)     : Andreas Fabri, Stefan Schirra
//
// coordinator   : MPI, Saarbruecken
// ======================================================================

#ifndef CGAL_POINT_2_H
#define CGAL_POINT_2_H

CGAL_BEGIN_NAMESPACE

class Origin;

template <class R_>
class Point_2 : public R_::Kernel_base::Point_2
{
  typedef typename R_::RT                    RT;
  typedef typename R_::Vector_2       Vector_2;
  typedef typename R_::Kernel_base::Point_2  RPoint_2;
public:
  typedef  R_   R;

  Point_2()
  {}

  Point_2(const Origin& o)
    : RPoint_2(o)
  {}

  Point_2(const CGAL::Point_2<R>& p)
    : RPoint_2(static_cast<const RPoint_2&>(p))
  {}

  Point_2(const RPoint_2& p)
    : RPoint_2(p)
  {}

  Point_2(const RT& hx, const RT& hy)
    : RPoint_2(hx, hy)
  {}

  Point_2(const RT& hx, const RT& hy, const RT& hw)
    : RPoint_2(hx, hy, hw)
  {}
};

#ifndef CGAL_NO_OSTREAM_INSERT_POINT_2
template < class R >
std::ostream&
operator<<(std::ostream& os, const Point_2<R>& p)
{
  typedef typename  R::Kernel_base::Point_2  RPoint_2;
  return os << static_cast<const RPoint_2&>(p);
}
#endif // CGAL_NO_OSTREAM_INSERT_POINT_2

#ifndef CGAL_NO_ISTREAM_EXTRACT_POINT_2
template < class R >
std::istream&
operator>>(std::istream& is, Point_2<R>& p)
{
  typedef typename  R::Kernel_base::Point_2  RPoint_2;
  return is >> static_cast<RPoint_2&>(p);
}
#endif // CGAL_NO_ISTREAM_EXTRACT_POINT_2

CGAL_END_NAMESPACE

#endif // CGAL_POINT_2_H