View.hpp

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

#include <map>
#include "Hierarchy.hpp"
#include "Subject.hpp"
#include "Observer.hpp"
#include "GraphException.hpp"


namespace gns {

  class Subject;

  class View : public ConstGraph, public Subject, public Observer
  {
    private:
      std::map<Node, Node> *hierarchynodes;
      std::map<Node, Node> *viewnodes;
      Hierarchy *hierarchy;
      bool own_hierarchy;


      void init(Hierarchy *h, PropertyFacility *p, int init_mode);


    public:
        const static int INIT_TOP = 1;    
        const static int INIT_BOTTOM = 2  ;

        View();
        View(Hierarchy *h, int init_mode = INIT_TOP, PropertyFacility *p = NULL);
        View(const View &v);

        virtual ~View();

        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);

        void expand(Node node);

        void collapse(Node node);

        Node hierarchy_node(const Node node) const;

        Node view_node(const Node node) const;

        Hierarchy* get_hierarchy() const;

        void set_hierarchy(Hierarchy *h, int init_mode = INIT_TOP);

    private:
        void get_graph_childs(Node parent, std::vector<Node>* nlist, bool do_ignore_node, Node ignore_node, bool do_ignore_edge, Edge ignore_edge);

        void add_node_edges(Node node, bool do_ignore_node, Node ignore_node, bool do_ignore_edge, Edge ignore_edge);

        void new_node_update(Subject *sub, Node node);

        void del_node_update(Subject *sub, Node node);

        void new_edge_update(Subject *sub, Edge edge);

        void del_edge_update(Subject *sub, Edge edge);
  };

  
}

#endif

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