mapping_collection.h

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// ---------------------------------------------------------------------
//
// Copyright (C) 2005 - 2020 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_mapping_collection_h
#define dealii_mapping_collection_h

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

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

#include <deal.II/fe/fe.h>
#include <deal.II/fe/mapping_q1.h>

#include <memory>
#include <vector>

DEAL_II_NAMESPACE_OPEN

namespace hp
{
  template <int dim, int spacedim = dim>
  class MappingCollection : public Subscriptor
  {
  public:
    MappingCollection() = default;

    explicit MappingCollection(const Mapping<dim, spacedim> &mapping);

    MappingCollection(
      const MappingCollection<dim, spacedim> &mapping_collection);

    void
    push_back(const Mapping<dim, spacedim> &new_mapping);

    const Mapping<dim, spacedim> &operator[](const unsigned int index) const;

    unsigned int
    size() const;

    std::size_t
    memory_consumption() const;

  private:
    std::vector<std::shared_ptr<const Mapping<dim, spacedim>>> mappings;
  };


  template <int dim, int spacedim = dim>
  struct StaticMappingQ1
  {
  public:
    static MappingCollection<dim, spacedim> mapping_collection;
  };


  /* --------------- inline functions ------------------- */

  template <int dim, int spacedim>
  inline unsigned int
  MappingCollection<dim, spacedim>::size() const
  {
    return mappings.size();
  }



  template <int dim, int spacedim>
  inline const Mapping<dim, spacedim> &MappingCollection<dim, spacedim>::
                                       operator[](const unsigned int index) const
  {
    AssertIndexRange(index, mappings.size());
    return *mappings[index];
  }

} // namespace hp


DEAL_II_NAMESPACE_CLOSE

#endif