coordinate_traits.hpp

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/*
  CLAW - a C++ Library Absolutely Wonderful
 
  CLAW is a free library without any particular aim but being useful to
  anyone.
 
  Copyright (C) 2005-2011 Julien Jorge
 
  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
  version 2.1 of the License, or (at your option) any later version.
 
  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
  Lesser General Public License for more details.
 
  You should have received a copy of the GNU Lesser General Public
  License along with this library; if not, write to the Free Software
  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  contact: julien.jorge@stuff-o-matic.com
*/
#ifndef __CLAW_MATH_COORDINATE_TRAITS_HPP__
#define __CLAW_MATH_COORDINATE_TRAITS_HPP__
 
#include <claw/coordinate_2d.hpp>
#include <claw/vector_2d.hpp>
 
namespace claw
{
  namespace math
  {
    template <typename C>
    struct coordinate_traits;

    template <typename T>
    struct coordinate_traits<claw::math::coordinate_2d<T> >
    {
      typedef claw::math::coordinate_2d<T> coordinate_type;

      typedef typename coordinate_type::value_type value_type;

      static value_type get_x(const coordinate_type& c)
      {
        return c.x;
      }

      static value_type get_y(const coordinate_type& c)
      {
        return c.y;
      }

      static coordinate_type make_coordinate(value_type x, value_type y)
      {
        return coordinate_type(x, y);
      }
 
    }; // struct coordinate_traits [claw::math::coordinate_2d]

    template <typename T>
    struct coordinate_traits<claw::math::vector_2d<T> >
    {
      typedef claw::math::vector_2d<T> coordinate_type;

      typedef typename coordinate_type::value_type value_type;

      static value_type get_x(const coordinate_type& c)
      {
        return c.x;
      }

      static value_type get_y(const coordinate_type& c)
      {
        return c.y;
      }

      static coordinate_type make_coordinate(value_type x, value_type y)
      {
        return coordinate_type(x, y);
      }
 
    }; // struct coordinate_traits [claw::math::vector_2d]
 
  }
}
 
#endif // __CLAW_MATH_COORDINATE_TRAITS_HPP__