PointWithId.hpp

// Copyright 2021 Arnaud Becheler    <abechele@umich.edu>
 
/*********************************************************************** * This program is free software; you can
 *redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free
 *Software Foundation; either version 2 of the License, or    * (at your option) any later version. *
 *                                                                      *
 ***************************************************************************/
 
#ifndef __POINT_WITH_ID_H_INCLUDED__
#define __POINT_WITH_ID_H_INCLUDED__
 
namespace quetzal
{
namespace utils
{
template <typename Point> size_t getIndexOfPointInVector(Point const &p, std::vector<Point> const &vect)
{
    auto it = std::find(vect.begin(), vect.end(), p);
    assert(it != vect.end());
    return std::distance(vect.begin(), it);
}
template <typename Point> class PointWithId
{
  public:
    PointWithId(std::vector<Point> const &vect, size_t index) : m_vector{vect}, m_index{index}
    {
    }
    PointWithId(std::vector<Point> const &vect, Point const &p)
        : m_vector{vect}, m_index{getIndexOfPointInVector(p, vect)}
    {
    }
    Point getPoint() const
    {
        return m_vector[m_index];
    }
    size_t getId() const
    {
        return m_index;
    }
    bool operator==(PointWithId const &other) const
    {
        return getPoint() == other.getPoint();
    }
    bool operator!=(PointWithId const &other) const
    {
        return !(*this == other);
    }
 
  private:
    std::vector<Point> const &m_vector;
    size_t m_index;
}; // end PointWithId
} // namespace utils
} // namespace quetzal
#endif