intersectioniterator.hh

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#ifndef DUNE_MULTIDOMAINGRID_INTERSECTIONITERATOR_HH
#define DUNE_MULTIDOMAINGRID_INTERSECTIONITERATOR_HH
 
#include <dune/grid/common/intersectioniterator.hh>
 
#include <dune/grid/multidomaingrid/hostgridaccessor.hh>
 
#include <dune/grid/multidomaingrid/subdomaingrid/intersectioniterator.hh>
#include "intersection.hh"
 
namespace Dune {
 
namespace mdgrid {
 
template<typename GridImp, typename HostIntersectionIterator_>
class IntersectionIteratorWrapper {
 
  template<class, class, class>
  friend class Dune::IntersectionIterator;
 
  template<class, class>
  friend class Dune::Intersection;
 
  template<typename,typename,typename>
  friend class subdomain::IntersectionIteratorWrapper;
 
  template<typename>
  friend class LevelGridView;
 
  template<typename>
  friend class LeafGridView;
 
  using HostIntersectionIterator = HostIntersectionIterator_;
  using HostIntersection         = typename HostIntersectionIterator::Intersection;
  using IntersectionWrapper      = Dune::mdgrid::IntersectionWrapper<GridImp,HostIntersection>;
  using Intersection             = Dune::Intersection<GridImp,IntersectionWrapper>;
 
protected:
 
  IntersectionIteratorWrapper() = default;
 
  explicit IntersectionIteratorWrapper(const HostIntersectionIterator& hostIterator)
    : _hostIterator(hostIterator)
  {}
 
  explicit IntersectionIteratorWrapper(HostIntersectionIterator&& hostIterator)
    : _hostIterator(std::move(hostIterator))
  {}
 
private:
 
  const HostIntersectionIterator& hostIntersectionIterator() const {
    return _hostIterator;
  }
 
  bool equals(const IntersectionIteratorWrapper& rhs) const {
    return _hostIterator == rhs._hostIterator;
  }
 
  void increment() {
    ++_hostIterator;
  }
 
  Intersection dereference() const {
    return {IntersectionWrapper(*_hostIterator)};
  }
 
  HostIntersectionIterator _hostIterator;
 
};
 
} // namespace mdgrid
 
} // namespace Dune
 
#endif // DUNE_MULTIDOMAINGRID_INTERSECTIONITERATOR_HH