foamgridleveliterator.hh

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#ifndef DUNE_FOAMGRID_LEVELITERATOR_HH
#define DUNE_FOAMGRID_LEVELITERATOR_HH
 
namespace Dune {
 
//**********************************************************************
//
// --FoamGridLevelIterator
template<int codim, PartitionIteratorType pitype, class GridImp>
class FoamGridLevelIterator
{
    enum {dimgrid  = GridImp::dimension};
    enum {dimworld = GridImp::dimensionworld};
 
    using EntityImp = FoamGridEntityImp<dimgrid-codim, dimgrid, dimworld, typename GridImp::ctype>;
 
public:
 
    using Entity = typename GridImp::template Codim<codim>::Entity;
    enum { codimension = codim };
 
    explicit FoamGridLevelIterator(const typename std::list<EntityImp>::const_iterator& it)
    : levelIterator_(it)
    {
        virtualEntity_.impl().setToTarget(&(*levelIterator_));
    }
 
    void increment() {
        ++levelIterator_;
        virtualEntity_.impl().setToTarget(&(*levelIterator_));
    }
 
    const Entity& dereference() const { return virtualEntity_; }
 
    bool equals(const FoamGridLevelIterator<codim, pitype, GridImp>& other) const {
      return virtualEntity_ == other.virtualEntity_;
    }
 
 
private:
    Entity virtualEntity_;
 
    typename std::list<EntityImp>::const_iterator levelIterator_;
 
};
 
 
}  // namespace Dune
 
#endif