named_selection.h

// ---------------------------------------------------------------------
//
// Copyright (C) 2000 - 2018 by the deal.II authors
//
// This file is part of the deal.II library.
//
// The deal.II library is free software; you can use it, 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.
// The full text of the license can be found in the file LICENSE.md at
// the top level directory of deal.II.
//
// ---------------------------------------------------------------------

#ifndef dealii_named_selection_h
#define dealii_named_selection_h

#include <deal.II/base/config.h>

#include <deal.II/algorithms/any_data.h>

#include <string>

DEAL_II_NAMESPACE_OPEN

class NamedSelection
{
public:
  void
  add(const std::string &name);


  void
  initialize(const AnyData &data);


  unsigned int
  size() const;


  unsigned int
  operator()(unsigned int i) const;


private:
  std::vector<std::string> names;

  std::vector<unsigned int> indices;
};


inline unsigned int
NamedSelection::size() const
{
  return names.size();
}


inline void
NamedSelection::add(const std::string &s)
{
  names.push_back(s);
}


inline unsigned int
NamedSelection::operator()(unsigned int i) const
{
  Assert(indices.size() == names.size(), ExcNotInitialized());

  AssertIndexRange(i, size());

  return indices[i];
}

DEAL_II_NAMESPACE_CLOSE

#endif