iterator.hh

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#ifndef DUNE_GRID_MULTIDOMAINGRID_ITERATOR_HH
#define DUNE_GRID_MULTIDOMAINGRID_ITERATOR_HH
 
#include <utility>
 
#include <dune/grid/common/gridenums.hh>
 
#include "entity.hh"
 
namespace Dune {
 
namespace mdgrid {
 
template<int codim, int dim, typename GridImp>
class EntityWrapper;
 
template<typename HostGridView, int codim, PartitionIteratorType pitype, typename GridImp>
class IteratorWrapper
{
 
  template<typename, typename>
  friend class MultiDomainGrid;
 
  template< int cd, class Grid, class IteratorImp >
  friend class Dune::EntityIterator;
 
  static const int codimension = codim;
 
  using HostIterator  = typename HostGridView::template Codim<codim>::template Partition<pitype>::Iterator;
 
public:
 
  // Entity must be public for iterator traits
  using Entity        = typename GridImp::template Codim<codim>::Entity;
 
private:
  using EntityWrapper        = Dune::mdgrid::EntityWrapper<codim,GridImp::dimension,GridImp>;
 
  IteratorWrapper() = default;
 
  explicit IteratorWrapper(const HostIterator& hostIterator)
    : _hostIterator(hostIterator)
  {}
 
  explicit IteratorWrapper(HostIterator&& hostIterator)
    : _hostIterator(std::move(hostIterator))
  {}
 
  void increment() {
    ++_hostIterator;
  }
 
  bool equals(const IteratorWrapper& r) const
  {
    return _hostIterator == r._hostIterator;
  }
 
  Entity dereference() const
  {
    return {EntityWrapper(*_hostIterator)};
  }
 
  int level() const
  {
    return _hostIterator.level();
  }
 
public:
 
private:
 
  HostIterator _hostIterator;
 
};
 
} // namespace mdgrid
 
} // namespace Dune
 
#endif // DUNE_GRID_MULTIDOMAINGRID_ITERATOR_HH