meshInfo.hh

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#ifndef dgMeshInfo_hh
#define dgMeshInfo_hh
 
#include "edgeInfo.hh"
 
// forward declaration
namespace concepts {
  class Mesh2;
}
 
namespace linDG2D {
 
  class MeshInfo {
  public:
    typedef concepts::Scan<EdgeInfo> Scanner;
    MeshInfo(concepts::Mesh2& mesh);
    Scanner* scan() const { return new S(edgeInfos_); }
    const EdgeInfo& edgeInfo(const concepts::Edge& edge) const {
      return edgeInfos_.find(edge.key())->second;
    }
  private:
    class S : public Scanner {
    public:
      inline S(const std::unordered_map<uint, EdgeInfo>& edgeInfos) :
        idx_(edgeInfos.begin()), edgeInfos_(edgeInfos) {}
      inline S(const S& scan) : idx_(scan.idx_), edgeInfos_(scan.edgeInfos_) {}
      inline bool eos() const { return idx_ == edgeInfos_.end(); }
      inline EdgeInfo& operator++(int) {
        return const_cast<EdgeInfo&>((*idx_++).second);
      }
      inline S* clone() const { return new S(*this); }
    private:
      std::unordered_map<uint, EdgeInfo>::const_iterator idx_;
      const std::unordered_map<uint, EdgeInfo>& edgeInfos_;
    };
    std::unordered_map<uint, EdgeInfo> edgeInfos_;
  };
 
} // namespace linDG2D
 
#endif // dgMeshInfo_hh