Hierarchy.hpp

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// vim:sw=2:ts=8
#ifndef HIERARCHY__HPP
#define HIERARCHY__HPP

#include <map>
#include "ConstGraph.hpp"
#include "ObservableGraph.hpp"
#include "Subject.hpp"
#include "Observer.hpp"


namespace gns {

  class Hierarchy : public ConstGraph, public Subject, public Observer
  {
    private:
      std::hash_map<Node, Node> *graphnodes;
      std::hash_map<Node, Node> *hierarchynodes;
      ObservableGraph *obsgraph;
      bool own_obsgraph;

      void init(ObservableGraph *g, PropertyFacility *p);


    public:
        Hierarchy();
        Hierarchy(ObservableGraph *g, PropertyFacility *p = NULL);
        Hierarchy(const Hierarchy &h);

        virtual ~Hierarchy();

        using ConstGraph::node_id;
        using ConstGraph::edge_id;

        virtual void node_id(Node n, NodeID id);

        virtual void edge_id(Edge e, EdgeID id);

        void update(Subject *sub, long msg, Item item);

        Node step(std::vector<Node>::const_iterator children_begin,
            std::vector<Node>::const_iterator children_end, NodeID id = NodeID(""));

        Node step(std::vector<Node> *children, NodeID id = NodeID("")) {
          return this->step(children->begin(), children->end(), id);
        }

        void unstep(Node node);

        void connect(Node node, Node parent);

        void disconnect(Node node);

        Node hierarchy_node(const Node node) const;

        Node graph_node(const Node node) const;

        ObservableGraph* get_graph() const;

        void set_graph(ObservableGraph *g);

    private:
        void del_node_update(Node node);

  };

}

#endif

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