entity.hh

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#ifndef DUNE_MULTIDOMAINGRID_ENTITY_HH
#define DUNE_MULTIDOMAINGRID_ENTITY_HH
 
#include <dune/grid/common/entity.hh>
#include <dune/grid/common/gridenums.hh>
 
namespace Dune {
 
namespace mdgrid {
 
template<int codim, int dim, typename GridImp>
class EntityWrapper;
 
template<typename GridImp>
class LeafIntersectionIteratorWrapper;
 
template<typename GridImp>
class LevelIntersectionIteratorWrapper;
 
template<typename GridImp>
class HierarchicIteratorWrapper;
 
template<typename, typename>
class IntersectionIteratorWrapper;
 
template<typename HostGrid, typename MDGridTraits>
class MultiDomainGrid;
 
template<typename>
class LevelGridView;
 
template<typename>
class LeafGridView;
 
 
template<typename HostES>
class EntitySeedWrapper
{
 
  typedef HostES HostEntitySeed;
 
  template<typename, typename>
  friend class MultiDomainGrid;
 
  template<int, int, typename>
  friend class EntityWrapper;
 
public:
 
  static const std::size_t codimension = HostEntitySeed::codimension;
 
  EntitySeedWrapper()
  {}
 
  EntitySeedWrapper(const HostEntitySeed& hostEntitySeed)
    : _hostEntitySeed(hostEntitySeed)
  {}
 
  const HostEntitySeed& hostEntitySeed() const
  {
    return _hostEntitySeed;
  }
 
  bool isValid() const
  {
    return _hostEntitySeed.isValid();
  }
 
  HostEntitySeed _hostEntitySeed;
 
};
 
 
template<int codim, int dim, typename GridImp>
class EntityWrapperBase :
    public EntityDefaultImplementation<codim,dim,GridImp,EntityWrapper>
{
 
  template<typename,typename>
  friend class MultiDomainGrid;
 
  typedef typename GridImp::HostGrid::Traits::template Codim<codim>::Entity HostEntity;
 
public:
 
  typedef typename GridImp::template Codim<codim>::Geometry Geometry;
 
  typedef EntitySeedWrapper<typename HostEntity::EntitySeed> EntitySeed;
 
  EntityWrapperBase()
  {}
 
  explicit EntityWrapperBase(const HostEntity& e)
    : _hostEntity(e)
  {}
 
  explicit EntityWrapperBase(HostEntity&& e)
    : _hostEntity(std::move(e))
  {}
 
  int level() const {
    return _hostEntity.level();
  }
 
  PartitionType partitionType() const {
    return _hostEntity.partitionType();
  }
 
  unsigned int subEntities(unsigned int codimSubEntitiy) const {
    return _hostEntity.subEntities(codimSubEntitiy);
  }
 
  Geometry geometry() const {
    return Geometry(_hostEntity.geometry());
  }
 
  EntitySeed seed() const {
    return EntitySeed(_hostEntity.seed());
  }
 
  bool equals(const EntityWrapperBase& other) const
  {
    return hostEntity() == other.hostEntity();
  }
 
private:
 
  HostEntity _hostEntity;
 
protected:
 
  const HostEntity& hostEntity() const {
    return _hostEntity;
  }
 
};
 
 
template<int codim, int dim, typename GridImp>
class EntityWrapper :
    public EntityWrapperBase<codim,dim,GridImp>
{
 
  using Base = EntityWrapperBase<codim,dim,GridImp>;
 
  template<typename,typename>
  friend class MultiDomainGrid;
 
public:
 
  // inherit constructors
  using Base::Base;
 
};
 
template<int dim, typename GridImp>
class EntityWrapper<0,dim,GridImp> :
    public EntityWrapperBase<0,dim,GridImp>
{
 
  using Base = EntityWrapperBase<0,dim,GridImp>;
 
  template<typename,typename>
  friend class MultiDomainGrid;
 
  template<typename>
  friend class LevelGridView;
 
  template<typename>
  friend class LeafGridView;
 
  using Base::hostEntity;
 
public:
 
  using LocalGeometry = typename GridImp::template Codim<0>::LocalGeometry;
  using LeafIntersectionIterator = typename GridImp::Traits::LeafIntersectionIterator;
  using LevelIntersectionIterator = typename GridImp::Traits::LevelIntersectionIterator;
  using HierarchicIterator = typename GridImp::Traits::HierarchicIterator;
 
  // inherit constructors
  using Base::Base;
 
  unsigned int subEntities(unsigned int codim) const {
    return hostEntity().subEntities(codim);
  }
 
  template<int cc>
  typename GridImp::template Codim<cc>::Entity subEntity(int i) const {
    return {EntityWrapper<cc,dim,GridImp>(hostEntity().template subEntity<cc>(i))};
  }
 
  typename GridImp::template Codim<0>::Entity father() const {
    return {EntityWrapper(hostEntity().father())};
  }
 
  bool hasFather() const {
    return hostEntity().hasFather();
  }
 
  bool isLeaf() const {
    return hostEntity().isLeaf();
  }
 
  bool isRegular() const {
    return hostEntity().isRegular();
  }
 
  LocalGeometry geometryInFather() const {
    return LocalGeometry(hostEntity().geometryInFather());
  }
 
  HierarchicIterator hbegin(int maxLevel) const {
    return HierarchicIteratorWrapper<GridImp>(hostEntity().hbegin(maxLevel));
  }
 
  HierarchicIterator hend(int maxLevel) const {
    return HierarchicIteratorWrapper<GridImp>(hostEntity().hend(maxLevel));
  }
 
  LevelIntersectionIterator ilevelbegin() const {
    return IntersectionIteratorWrapper<
      GridImp,
      typename GridImp::HostGrid::LevelGridView::IntersectionIterator
      >(
        hostEntity().ilevelbegin()
        );
  }
 
  LevelIntersectionIterator ilevelend() const {
    return IntersectionIteratorWrapper<
      GridImp,
      typename GridImp::HostGrid::LevelGridView::IntersectionIterator
      >(
        hostEntity().ilevelend()
        );
  }
 
  LeafIntersectionIterator ileafbegin() const {
    return IntersectionIteratorWrapper<
      GridImp,
      typename GridImp::HostGrid::LeafGridView::IntersectionIterator
      >(
        hostEntity().ileafbegin()
        );
  }
 
  LeafIntersectionIterator ileafend() const {
    return IntersectionIteratorWrapper<
      GridImp,
      typename GridImp::HostGrid::LeafGridView::IntersectionIterator
      >(
        hostEntity().ileafend()
        );
  }
 
  bool isNew() const {
    return hostEntity().isNew();
  }
 
  bool mightVanish() const {
    return hostEntity().mightVanish();
  }
 
  bool hasBoundaryIntersections () const
  {
    return hostEntity().hasBoundaryIntersections();
  }
 
};
 
} // namespace mdgrid
 
} // namespace Dune
 
#endif // DUNE_MULTIDOMAINGRID_ENTITY_HH