src/work/deba/edge_map_registry.h
changeset 337 6e1b7efa577f
child 340 a2ce3c4780b7
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/work/deba/edge_map_registry.h	Fri Apr 16 12:15:17 2004 +0000
     1.3 @@ -0,0 +1,53 @@
     1.4 +#ifndef EDGE_MAP_REGISTRY_H
     1.5 +#define EDGE_MAP_REGISTRY_H
     1.6 +
     1.7 +#include <vector>
     1.8 +
     1.9 +template <typename G, typename E>
    1.10 +class EdgeMapRegistry {
    1.11 +public:
    1.12 +	typedef G Graph;
    1.13 +	typedef E Edge
    1.14 +	
    1.15 +	typedef EdgeMapBase<Graph, Edge> EdgeMapBase;
    1.16 +
    1.17 +protected:
    1.18 +	typedef std::vector<EdgeMapBase*> Container; 
    1.19 +	
    1.20 +	Container container;
    1.21 +	
    1.22 +	void add(EdgeMapBase& map_base) {
    1.23 +		if (map_base.graph) {
    1.24 +			map_base.graph->edge_maps.erase(map_base);
    1.25 +		}
    1.26 +		container.push_back(&map_base);
    1.27 +		map_base.graph = this;
    1.28 +		map_base.graph_index = container.size()-1;
    1.29 +	} 
    1.30 +	
    1.31 +	void erase(EdgeMapBase& map_base) {
    1.32 +		if (map_base.graph != this) return;
    1.33 +		container.back()->graph_index = map_base.graph_index; 
    1.34 +		container[map_base.graph_index] = container.back();
    1.35 +		container.pop_back();
    1.36 +		map_base.graph = 0;
    1.37 +	}
    1.38 +	
    1.39 +	void addEdge(Edge& edge) {
    1.40 +		typename Container::iterator it;
    1.41 +		for (it = container.begin(); it != container.end(); ++it) {
    1.42 +			(*it)->add(edge);
    1.43 +		}
    1.44 +	}
    1.45 +	
    1.46 +	void eraseEdge(Edge& edge) {
    1.47 +		typename Container::iterator it;
    1.48 +		for (it = container.begin(); it != container.end(); ++it) {
    1.49 +			(*it)->erase(edge);
    1.50 +		}
    1.51 +	}
    1.52 +
    1.53 +	friend class EdgeMapBase;
    1.54 +};
    1.55 +
    1.56 +#endif