identitygridentitypointer.hh

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// -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
// vi: set et ts=4 sw=2 sts=2:
#ifndef DUNE_IDENTITYGRID_ENTITY_POINTER_HH
#define DUNE_IDENTITYGRID_ENTITY_POINTER_HH
 
#include "identitygridentity.hh"
 
namespace Dune {
 
 
  template<int codim, class GridImp, class HostGridEntityPointer_>
  class IdentityGridEntityPointer
  {
  private:
 
    enum { dim = GridImp::dimension };
 
    template<int, typename, typename>
    friend class IdentityGridEntityPointer;
 
 
  public:
 
    typedef IdentityGridEntityPointer EntityPointerImp;
 
    enum { codimension = codim };
 
    typedef typename GridImp::template Codim<codim>::Entity Entity;
 
    // The codimension of this entitypointer wrt the host grid
    enum {CodimInHostGrid = GridImp::HostGridType::dimension - GridImp::dimension + codim};
 
    // EntityPointer to the equivalent entity in the host grid
    typedef HostGridEntityPointer_ HostGridEntityPointer;
 
 
    IdentityGridEntityPointer (const GridImp* identityGrid, const HostGridEntityPointer& hostEntityPointer)
      : identityGrid_(identityGrid)
      , hostEntityPointer_(hostEntityPointer)
    {}
 
    template<typename ForeignHostGridEntityPointer>
    explicit IdentityGridEntityPointer (const IdentityGridEntityPointer<codim,GridImp,ForeignHostGridEntityPointer>& entityPointer)
      : identityGrid_(entityPointer.identityGrid_)
      , hostEntityPointer_(entityPointer.hostEntityPointer_)
    {}
 
    template<typename ForeignHostGridEntityPointer>
    IdentityGridEntityPointer& operator=(const IdentityGridEntityPointer<codim,GridImp,ForeignHostGridEntityPointer>& entityPointer)
    {
      hostEntityPointer_ = entityPointer.hostEntityPointer_;
      return *this;
    }
 
    IdentityGridEntityPointer (const GridImp* identityGrid, HostGridEntityPointer&& hostEntityPointer)
      : identityGrid_(identityGrid)
      , hostEntityPointer_(std::move(hostEntityPointer))
    {}
 
    IdentityGridEntityPointer (const IdentityGridEntity<codim,dim,GridImp>& entity)
      : identityGrid_(entity.identityGrid_)
      , hostEntityPointer_(entity.hostEntity_)
    {}
 
    bool equals(const IdentityGridEntityPointer& i) const {
      return hostEntityPointer_ == i.hostEntityPointer_;
    }
 
    template<typename ForeignHostGridEntityPointer>
    bool equals(const IdentityGridEntityPointer<codim,GridImp,ForeignHostGridEntityPointer>& entityPointer) const
    {
      return  hostEntityPointer_ == entityPointer.hostEntityPointer_;
    }
 
    Entity dereference() const {
      return Entity{{identityGrid_,*hostEntityPointer_}};
    }
 
    void compactify () {
      //virtualEntity_.getTarget().compactify();
    }
 
    int level () const {
      return hostEntityPointer_->level();
    }
 
 
  protected:
 
    const GridImp* identityGrid_;
 
    HostGridEntityPointer hostEntityPointer_;
 
 
  };
 
 
} // end namespace Dune
 
#endif