/*
  Copyright 2008 Intel Corporation

  Use, modification and distribution are subject to the Boost Software License,
  Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
  http://www.boost.org/LICENSE_1_0.txt).
*/
#ifndef BOOST_POLYGON_SEGMENT_DATA_HPP
#define BOOST_POLYGON_SEGMENT_DATA_HPP

#include "isotropy.hpp"

namespace boost { namespace polygon{
  template <typename T>
  class segment_data {
  public:
    typedef T coordinate_type;
    typedef point_data<T> point_type;

    inline segment_data()
#ifndef BOOST_POLYGON_MSVC
      :points_()
#endif
    {}

    inline segment_data(const point_type& low, const point_type& high)
#ifndef BOOST_POLYGON_MSVC
      :points_()
#endif
    {
      points_[LOW] = low; points_[HIGH] = high;
    }

    inline segment_data(const segment_data& that)
#ifndef BOOST_POLYGON_MSVC
      :points_()
#endif
    {
      (*this) = that;
    }

    inline segment_data& operator=(const segment_data& that) {
      points_[0] = that.points_[0];
      points_[1] = that.points_[1];
      return *this;
    }

    template <typename Segment>
    inline segment_data& operator=(const Segment& that);

    inline point_type get(direction_1d dir) const {
      return points_[dir.to_int()];
    }

    inline void set(direction_1d dir, const point_type& point) {
      points_[dir.to_int()] = point;
    }

    inline point_type low() const { return points_[0]; }

    inline segment_data& low(const point_type& point) {
      points_[0] = point;
      return *this;
    }

    inline point_type high() const {return points_[1]; }

    inline segment_data& high(const point_type& point) {
      points_[1] = point;
      return *this;
    }

    inline bool operator==(const segment_data& that) const {
      return low() == that.low() && high() == that.high();
    }

    inline bool operator!=(const segment_data& that) const {
      return low() != that.low() || high() != that.high();
    }

    inline bool operator<(const segment_data& that) const {
      if (points_[0] < that.points_[0])
        return true;
      if (points_[0] > that.points_[0])
        return false;
      return points_[1] < that.points_[1];
    }

    inline bool operator<=(const segment_data& that) const {
      return !(that < *this);
    }

    inline bool operator>(const segment_data& that) const {
      return that < *this;
    }

    inline bool operator>=(const segment_data& that) const {
      return !((*this) < that);
    }

  private:
    point_type points_[2];
};
}
}
#endif
