point2d.hh

// Copyright (C) 2001, 2002, 2003, 2004  EPITA Research and Development Laboratory
//
// This file is part of the Olena Library.  This library is free
// software; you can redistribute it and/or modify it under the terms
// of the GNU General Public License version 2 as published by the
// Free Software Foundation.
//
// This library 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 library; see the file COPYING.  If not, write to
// the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
// MA 02111-1307, USA.
//
// As a special exception, you may use this file as part of a free
// software library without restriction.  Specifically, if other files
// instantiate templates or use macros or inline functions from this
// file, or you compile this file and link it with other files to
// produce an executable, this file does not by itself cause the
// resulting executable to be covered by the GNU General Public
// License.  This exception does not however invalidate any other
// reasons why the executable file might be covered by the GNU General
// Public License.

#ifndef OLENA_CORE_POINT2D_HH
# define OLENA_CORE_POINT2D_HH

# include <oln/core/coord.hh>
# include <oln/core/point1d.hh>
# include <iostream>
namespace oln {

  // fwd decl
  class dpoint2d;
  class point2d;

  template<>
  struct point_traits<point2d>: public point_traits<abstract::point<point2d> >
  {
    enum { dim = 2 };
    typedef dpoint2d dpoint_type;
  };

  class point2d : public abstract::point<point2d >
  {
  public:

    typedef abstract::point< point2d >  super_type;
    typedef point_traits<point2d>::dpoint_type dpoint_type;

    friend class abstract::point< point2d >;

    point2d();


    point2d(coord row, coord col);


    point2d(const point1d& p, coord col);


    coord
    row() const;


    coord&
    row();


    coord
    col() const;


    coord&
    col();

    static std::string
    name()
    {
      return "point2d";
    }

  protected:

    point2d
    plus_dp(const dpoint2d& dp) const;

    point2d
    minus_dp(const dpoint2d& dp) const;

    point2d&
    plus_assign_dp(const dpoint2d& dp);

    point2d&
    minus_assign_dp(const dpoint2d& dp);

    dpoint2d
    minus_p(const point2d& p) const;

    point2d
    minus() const;

  };

  namespace internal
  {

    template<>
    struct default_less<point2d> :
      public default_less<point2d::super_type>
    {};
  } // internal

} // oln


inline std::ostream&
operator<<(std::ostream& o, const oln::point2d& p);

# include <oln/core/point2d.hxx>

#endif // ! OLENA_CORE_POINT2D_HH

---