deba@1791: /* -*- C++ -*-
deba@1791:  *
alpar@1956:  * This file is a part of LEMON, a generic C++ optimization library
alpar@1956:  *
alpar@1956:  * Copyright (C) 2003-2006
alpar@1956:  * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
alpar@1956:  * (Egervary Research Group on Combinatorial Optimization, EGRES).
deba@1791:  *
deba@1791:  * Permission to use, modify and distribute this software is granted
deba@1791:  * provided that this copyright notice appears in all copies. For
deba@1791:  * precise terms see the accompanying LICENSE file.
deba@1791:  *
deba@1791:  * This software is provided "AS IS" with no warranty of any kind,
deba@1791:  * express or implied, and with no claim as to its suitability for any
deba@1791:  * purpose.
deba@1791:  *
deba@1791:  */
deba@1791: 
deba@1996: #ifndef LEMON_BITS_GRAPH_EXTENDER_H
deba@1996: #define LEMON_BITS_GRAPH_EXTENDER_H
deba@1791: 
deba@1993: #include <lemon/bits/invalid.h>
deba@2116: #include <lemon/error.h>
deba@1791: 
deba@1999: #include <lemon/bits/map_extender.h>
deba@1979: #include <lemon/bits/default_map.h>
deba@1979: 
deba@2116: #include <lemon/concept_check.h>
deba@2116: #include <lemon/concept/maps.h>
deba@2116: 
deba@1996: ///\ingroup graphbits
deba@1996: ///\file
deba@1996: ///\brief Extenders for the graph types
deba@1791: namespace lemon {
deba@1791: 
deba@1996:   /// \ingroup graphbits
deba@1996:   ///
deba@1996:   /// \brief Extender for the Graphs
deba@1979:   template <typename Base>
deba@1979:   class GraphExtender : public Base {
deba@1791:   public:
deba@1791: 
deba@1979:     typedef Base Parent;
deba@1791:     typedef GraphExtender Graph;
deba@1791: 
deba@1979:     // Base extensions
deba@1979: 
deba@1791:     typedef typename Parent::Node Node;
deba@1791:     typedef typename Parent::Edge Edge;
deba@1791: 
deba@1791:     int maxId(Node) const {
deba@1791:       return Parent::maxNodeId();
deba@1791:     }
deba@1791: 
deba@1791:     int maxId(Edge) const {
deba@1791:       return Parent::maxEdgeId();
deba@1791:     }
deba@1791: 
deba@1791:     Node fromId(int id, Node) const {
deba@1791:       return Parent::nodeFromId(id);
deba@1791:     }
deba@1791: 
deba@1791:     Edge fromId(int id, Edge) const {
deba@1791:       return Parent::edgeFromId(id);
deba@1791:     }
deba@1791: 
deba@1791:     Node oppositeNode(const Node &n, const Edge &e) const {
deba@1791:       if (n == Parent::source(e))
deba@1791: 	return Parent::target(e);
deba@1791:       else if(n==Parent::target(e))
deba@1791: 	return Parent::source(e);
deba@1791:       else
deba@1791: 	return INVALID;
deba@1791:     }
deba@1791: 
deba@1979:     // Alterable extension
deba@1791: 
deba@1999:     typedef AlterationNotifier<GraphExtender, Node> NodeNotifier;
deba@1999:     typedef AlterationNotifier<GraphExtender, Edge> EdgeNotifier;
deba@1979: 
deba@1979: 
deba@1979:   protected:
deba@1979: 
deba@1979:     mutable NodeNotifier node_notifier;
deba@1979:     mutable EdgeNotifier edge_notifier;
deba@1791: 
deba@1791:   public:
deba@1791: 
deba@1979:     NodeNotifier& getNotifier(Node) const {
deba@1979:       return node_notifier;
deba@1979:     }
deba@1979:     
deba@1979:     EdgeNotifier& getNotifier(Edge) const {
deba@1979:       return edge_notifier;
deba@1979:     }
deba@1979: 
deba@1979:     class NodeIt : public Node { 
deba@1979:       const Graph* graph;
deba@1979:     public:
deba@1979: 
deba@1979:       NodeIt() {}
deba@1979: 
deba@1979:       NodeIt(Invalid i) : Node(i) { }
deba@1979: 
deba@1979:       explicit NodeIt(const Graph& _graph) : graph(&_graph) {
deba@2031: 	_graph.first(static_cast<Node&>(*this));
deba@1979:       }
deba@1979: 
deba@1979:       NodeIt(const Graph& _graph, const Node& node) 
deba@1979: 	: Node(node), graph(&_graph) {}
deba@1979: 
deba@1979:       NodeIt& operator++() { 
deba@1979: 	graph->next(*this);
deba@1979: 	return *this; 
deba@1979:       }
deba@1979: 
deba@1979:     };
deba@1979: 
deba@1979: 
deba@1979:     class EdgeIt : public Edge { 
deba@1979:       const Graph* graph;
deba@1979:     public:
deba@1979: 
deba@1979:       EdgeIt() { }
deba@1979: 
deba@1979:       EdgeIt(Invalid i) : Edge(i) { }
deba@1979: 
deba@1979:       explicit EdgeIt(const Graph& _graph) : graph(&_graph) {
deba@2031: 	_graph.first(static_cast<Edge&>(*this));
deba@1979:       }
deba@1979: 
deba@1979:       EdgeIt(const Graph& _graph, const Edge& e) : 
deba@1979: 	Edge(e), graph(&_graph) { }
deba@1979: 
deba@1979:       EdgeIt& operator++() { 
deba@1979: 	graph->next(*this);
deba@1979: 	return *this; 
deba@1979:       }
deba@1979: 
deba@1979:     };
deba@1979: 
deba@1979: 
deba@1979:     class OutEdgeIt : public Edge { 
deba@1979:       const Graph* graph;
deba@1979:     public:
deba@1979: 
deba@1979:       OutEdgeIt() { }
deba@1979: 
deba@1979:       OutEdgeIt(Invalid i) : Edge(i) { }
deba@1979: 
deba@1979:       OutEdgeIt(const Graph& _graph, const Node& node) 
deba@1979: 	: graph(&_graph) {
deba@1979: 	_graph.firstOut(*this, node);
deba@1979:       }
deba@1979: 
deba@1979:       OutEdgeIt(const Graph& _graph, const Edge& edge) 
deba@1979: 	: Edge(edge), graph(&_graph) {}
deba@1979: 
deba@1979:       OutEdgeIt& operator++() { 
deba@1979: 	graph->nextOut(*this);
deba@1979: 	return *this; 
deba@1979:       }
deba@1979: 
deba@1979:     };
deba@1979: 
deba@1979: 
deba@1979:     class InEdgeIt : public Edge { 
deba@1979:       const Graph* graph;
deba@1979:     public:
deba@1979: 
deba@1979:       InEdgeIt() { }
deba@1979: 
deba@1979:       InEdgeIt(Invalid i) : Edge(i) { }
deba@1979: 
deba@1979:       InEdgeIt(const Graph& _graph, const Node& node) 
deba@1979: 	: graph(&_graph) {
deba@1979: 	_graph.firstIn(*this, node);
deba@1979:       }
deba@1979: 
deba@1979:       InEdgeIt(const Graph& _graph, const Edge& edge) : 
deba@1979: 	Edge(edge), graph(&_graph) {}
deba@1979: 
deba@1979:       InEdgeIt& operator++() { 
deba@1979: 	graph->nextIn(*this);
deba@1979: 	return *this; 
deba@1979:       }
deba@1979: 
deba@1979:     };
deba@1979: 
deba@1979:     /// \brief Base node of the iterator
deba@1979:     ///
athos@2102:     /// Returns the base node (i.e. the source in this case) of the iterator
deba@1979:     Node baseNode(const OutEdgeIt &e) const {
deba@1979:       return Parent::source(e);
deba@1979:     }
deba@1979:     /// \brief Running node of the iterator
deba@1979:     ///
athos@2102:     /// Returns the running node (i.e. the target in this case) of the
deba@1979:     /// iterator
deba@1979:     Node runningNode(const OutEdgeIt &e) const {
deba@1979:       return Parent::target(e);
deba@1979:     }
deba@1979: 
deba@1979:     /// \brief Base node of the iterator
deba@1979:     ///
athos@2102:     /// Returns the base node (i.e. the target in this case) of the iterator
deba@1979:     Node baseNode(const InEdgeIt &e) const {
deba@1979:       return Parent::target(e);
deba@1979:     }
deba@1979:     /// \brief Running node of the iterator
deba@1979:     ///
athos@2102:     /// Returns the running node (i.e. the source in this case) of the
deba@1979:     /// iterator
deba@1979:     Node runningNode(const InEdgeIt &e) const {
deba@1979:       return Parent::source(e);
deba@1979:     }
deba@1979: 
deba@1979:     
deba@1979:     template <typename _Value>
deba@1979:     class NodeMap 
deba@1999:       : public MapExtender<DefaultMap<Graph, Node, _Value> > {
deba@1979:     public:
deba@1979:       typedef GraphExtender Graph;
deba@1999:       typedef MapExtender<DefaultMap<Graph, Node, _Value> > Parent;
deba@1979: 
klao@2046:       explicit NodeMap(const Graph& graph) 
deba@1999: 	: Parent(graph) {}
deba@1999:       NodeMap(const Graph& graph, const _Value& value) 
deba@1999: 	: Parent(graph, value) {}
deba@1979: 
deba@1979:       NodeMap& operator=(const NodeMap& cmap) {
deba@1979: 	return operator=<NodeMap>(cmap);
deba@1979:       }
deba@1979: 
deba@1979:       template <typename CMap>
deba@1979:       NodeMap& operator=(const CMap& cmap) {
deba@2031:         Parent::operator=(cmap);
deba@1979: 	return *this;
deba@1979:       }
deba@1979: 
deba@1979:     };
deba@1979: 
deba@1979:     template <typename _Value>
deba@1979:     class EdgeMap 
deba@1999:       : public MapExtender<DefaultMap<Graph, Edge, _Value> > {
deba@1979:     public:
deba@1979:       typedef GraphExtender Graph;
deba@1999:       typedef MapExtender<DefaultMap<Graph, Edge, _Value> > Parent;
deba@1979: 
klao@2046:       explicit EdgeMap(const Graph& graph) 
deba@1999: 	: Parent(graph) {}
deba@1999:       EdgeMap(const Graph& graph, const _Value& value) 
deba@1999: 	: Parent(graph, value) {}
deba@1979: 
deba@1979:       EdgeMap& operator=(const EdgeMap& cmap) {
deba@1979: 	return operator=<EdgeMap>(cmap);
deba@1979:       }
deba@1979: 
deba@1979:       template <typename CMap>
deba@1979:       EdgeMap& operator=(const CMap& cmap) {
deba@2031:         Parent::operator=(cmap);
deba@1979: 	return *this;
deba@1979:       }
deba@1979:     };
deba@1979: 
deba@1979: 
deba@1979:     Node addNode() {
deba@1979:       Node node = Parent::addNode();
deba@1979:       getNotifier(Node()).add(node);
deba@1979:       return node;
deba@1979:     }
deba@1979:     
deba@1979:     Edge addEdge(const Node& from, const Node& to) {
deba@1979:       Edge edge = Parent::addEdge(from, to);
deba@1979:       getNotifier(Edge()).add(edge);
deba@1979:       return edge;
deba@1979:     }
deba@1979: 
deba@1979:     void clear() {
deba@1979:       getNotifier(Edge()).clear();
deba@1979:       getNotifier(Node()).clear();
deba@1979:       Parent::clear();
deba@1979:     }
deba@1979: 
deba@1979: 
deba@1979:     void erase(const Node& node) {
deba@1979:       Edge edge;
deba@1979:       Parent::firstOut(edge, node);
deba@1979:       while (edge != INVALID ) {
deba@1979: 	erase(edge);
deba@1979: 	Parent::firstOut(edge, node);
deba@1979:       } 
deba@1979: 
deba@1979:       Parent::firstIn(edge, node);
deba@1979:       while (edge != INVALID ) {
deba@1979: 	erase(edge);
deba@1979: 	Parent::firstIn(edge, node);
deba@1979:       }
deba@1979: 
deba@1979:       getNotifier(Node()).erase(node);
deba@1979:       Parent::erase(node);
deba@1979:     }
deba@1979:     
deba@1979:     void erase(const Edge& edge) {
deba@1979:       getNotifier(Edge()).erase(edge);
deba@1979:       Parent::erase(edge);
deba@1979:     }
deba@1979: 
deba@1999:     GraphExtender() {
deba@1999:       node_notifier.setContainer(*this);
deba@1999:       edge_notifier.setContainer(*this);
deba@1999:     } 
deba@1999:     
deba@1979: 
deba@1979:     ~GraphExtender() {
deba@1999:       edge_notifier.clear();
deba@1999:       node_notifier.clear();
deba@1979:     }
deba@1979:   };
deba@1979: 
deba@2116:   /// \ingroup graphbits
deba@2116:   ///
deba@2116:   /// \brief Extender for the UGraphs
deba@2116:   template <typename Base> 
deba@2116:   class UGraphExtender : public Base {
deba@2116:   public:
deba@2116:     
deba@2116:     typedef Base Parent;
deba@2116:     typedef UGraphExtender Graph;
deba@2116: 
deba@2116:     typedef typename Parent::Node Node;
deba@2116:     typedef typename Parent::Edge Edge;
deba@2116:     typedef typename Parent::UEdge UEdge;
deba@2116: 
deba@2116:     // UGraph extension    
deba@2116: 
deba@2116:     int maxId(Node) const {
deba@2116:       return Parent::maxNodeId();
deba@2116:     }
deba@2116: 
deba@2116:     int maxId(Edge) const {
deba@2116:       return Parent::maxEdgeId();
deba@2116:     }
deba@2116: 
deba@2116:     int maxId(UEdge) const {
deba@2116:       return Parent::maxUEdgeId();
deba@2116:     }
deba@2116: 
deba@2116:     Node fromId(int id, Node) const {
deba@2116:       return Parent::nodeFromId(id);
deba@2116:     }
deba@2116: 
deba@2116:     Edge fromId(int id, Edge) const {
deba@2116:       return Parent::edgeFromId(id);
deba@2116:     }
deba@2116: 
deba@2116:     UEdge fromId(int id, UEdge) const {
deba@2116:       return Parent::uEdgeFromId(id);
deba@2116:     }
deba@2116: 
deba@2116:     Node oppositeNode(const Node &n, const UEdge &e) const {
deba@2116:       if( n == Parent::source(e))
deba@2116: 	return Parent::target(e);
deba@2116:       else if( n == Parent::target(e))
deba@2116: 	return Parent::source(e);
deba@2116:       else
deba@2116: 	return INVALID;
deba@2116:     }
deba@2116: 
deba@2116:     Edge oppositeEdge(const Edge &e) const {
deba@2116:       return Parent::direct(e, !Parent::direction(e));
deba@2116:     }
deba@2116: 
deba@2116:     using Parent::direct;
deba@2116:     Edge direct(const UEdge &ue, const Node &s) const {
deba@2116:       return Parent::direct(ue, Parent::source(ue) == s);
deba@2116:     }
deba@2116: 
deba@2116:     // Alterable extension
deba@2116: 
deba@2116:     typedef AlterationNotifier<UGraphExtender, Node> NodeNotifier;
deba@2116:     typedef AlterationNotifier<UGraphExtender, Edge> EdgeNotifier;
deba@2116:     typedef AlterationNotifier<UGraphExtender, UEdge> UEdgeNotifier;
deba@2116: 
deba@2116: 
deba@2116:   protected:
deba@2116: 
deba@2116:     mutable NodeNotifier node_notifier;
deba@2116:     mutable EdgeNotifier edge_notifier;
deba@2116:     mutable UEdgeNotifier uedge_notifier;
deba@2116: 
deba@2116:   public:
deba@2116: 
deba@2116:     NodeNotifier& getNotifier(Node) const {
deba@2116:       return node_notifier;
deba@2116:     }
deba@2116:     
deba@2116:     EdgeNotifier& getNotifier(Edge) const {
deba@2116:       return edge_notifier;
deba@2116:     }
deba@2116: 
deba@2116:     UEdgeNotifier& getNotifier(UEdge) const {
deba@2116:       return uedge_notifier;
deba@2116:     }
deba@2116: 
deba@2116: 
deba@2116: 
deba@2116:     class NodeIt : public Node { 
deba@2116:       const Graph* graph;
deba@2116:     public:
deba@2116: 
deba@2116:       NodeIt() {}
deba@2116: 
deba@2116:       NodeIt(Invalid i) : Node(i) { }
deba@2116: 
deba@2116:       explicit NodeIt(const Graph& _graph) : graph(&_graph) {
deba@2116: 	_graph.first(static_cast<Node&>(*this));
deba@2116:       }
deba@2116: 
deba@2116:       NodeIt(const Graph& _graph, const Node& node) 
deba@2116: 	: Node(node), graph(&_graph) {}
deba@2116: 
deba@2116:       NodeIt& operator++() { 
deba@2116: 	graph->next(*this);
deba@2116: 	return *this; 
deba@2116:       }
deba@2116: 
deba@2116:     };
deba@2116: 
deba@2116: 
deba@2116:     class EdgeIt : public Edge { 
deba@2116:       const Graph* graph;
deba@2116:     public:
deba@2116: 
deba@2116:       EdgeIt() { }
deba@2116: 
deba@2116:       EdgeIt(Invalid i) : Edge(i) { }
deba@2116: 
deba@2116:       explicit EdgeIt(const Graph& _graph) : graph(&_graph) {
deba@2116: 	_graph.first(static_cast<Edge&>(*this));
deba@2116:       }
deba@2116: 
deba@2116:       EdgeIt(const Graph& _graph, const Edge& e) : 
deba@2116: 	Edge(e), graph(&_graph) { }
deba@2116: 
deba@2116:       EdgeIt& operator++() { 
deba@2116: 	graph->next(*this);
deba@2116: 	return *this; 
deba@2116:       }
deba@2116: 
deba@2116:     };
deba@2116: 
deba@2116: 
deba@2116:     class OutEdgeIt : public Edge { 
deba@2116:       const Graph* graph;
deba@2116:     public:
deba@2116: 
deba@2116:       OutEdgeIt() { }
deba@2116: 
deba@2116:       OutEdgeIt(Invalid i) : Edge(i) { }
deba@2116: 
deba@2116:       OutEdgeIt(const Graph& _graph, const Node& node) 
deba@2116: 	: graph(&_graph) {
deba@2116: 	_graph.firstOut(*this, node);
deba@2116:       }
deba@2116: 
deba@2116:       OutEdgeIt(const Graph& _graph, const Edge& edge) 
deba@2116: 	: Edge(edge), graph(&_graph) {}
deba@2116: 
deba@2116:       OutEdgeIt& operator++() { 
deba@2116: 	graph->nextOut(*this);
deba@2116: 	return *this; 
deba@2116:       }
deba@2116: 
deba@2116:     };
deba@2116: 
deba@2116: 
deba@2116:     class InEdgeIt : public Edge { 
deba@2116:       const Graph* graph;
deba@2116:     public:
deba@2116: 
deba@2116:       InEdgeIt() { }
deba@2116: 
deba@2116:       InEdgeIt(Invalid i) : Edge(i) { }
deba@2116: 
deba@2116:       InEdgeIt(const Graph& _graph, const Node& node) 
deba@2116: 	: graph(&_graph) {
deba@2116: 	_graph.firstIn(*this, node);
deba@2116:       }
deba@2116: 
deba@2116:       InEdgeIt(const Graph& _graph, const Edge& edge) : 
deba@2116: 	Edge(edge), graph(&_graph) {}
deba@2116: 
deba@2116:       InEdgeIt& operator++() { 
deba@2116: 	graph->nextIn(*this);
deba@2116: 	return *this; 
deba@2116:       }
deba@2116: 
deba@2116:     };
deba@2116: 
deba@2116: 
deba@2116:     class UEdgeIt : public Parent::UEdge { 
deba@2116:       const Graph* graph;
deba@2116:     public:
deba@2116: 
deba@2116:       UEdgeIt() { }
deba@2116: 
deba@2116:       UEdgeIt(Invalid i) : UEdge(i) { }
deba@2116: 
deba@2116:       explicit UEdgeIt(const Graph& _graph) : graph(&_graph) {
deba@2116: 	_graph.first(static_cast<UEdge&>(*this));
deba@2116:       }
deba@2116: 
deba@2116:       UEdgeIt(const Graph& _graph, const UEdge& e) : 
deba@2116: 	UEdge(e), graph(&_graph) { }
deba@2116: 
deba@2116:       UEdgeIt& operator++() { 
deba@2116: 	graph->next(*this);
deba@2116: 	return *this; 
deba@2116:       }
deba@2116: 
deba@2116:     };
deba@2116: 
deba@2116:     class IncEdgeIt : public Parent::UEdge {
deba@2116:       friend class UGraphExtender;
deba@2116:       const Graph* graph;
deba@2116:       bool direction;
deba@2116:     public:
deba@2116: 
deba@2116:       IncEdgeIt() { }
deba@2116: 
deba@2116:       IncEdgeIt(Invalid i) : UEdge(i), direction(false) { }
deba@2116: 
deba@2116:       IncEdgeIt(const Graph& _graph, const Node &n) : graph(&_graph) {
deba@2116: 	_graph.firstInc(*this, direction, n);
deba@2116:       }
deba@2116: 
deba@2116:       IncEdgeIt(const Graph& _graph, const UEdge &ue, const Node &n)
deba@2116: 	: graph(&_graph), UEdge(ue) {
deba@2116: 	direction = (_graph.source(ue) == n);
deba@2116:       }
deba@2116: 
deba@2116:       IncEdgeIt& operator++() {
deba@2116: 	graph->nextInc(*this, direction);
deba@2116: 	return *this; 
deba@2116:       }
deba@2116:     };
deba@2116: 
deba@2116:     /// \brief Base node of the iterator
deba@2116:     ///
deba@2116:     /// Returns the base node (ie. the source in this case) of the iterator
deba@2116:     Node baseNode(const OutEdgeIt &e) const {
deba@2116:       return Parent::source((Edge)e);
deba@2116:     }
deba@2116:     /// \brief Running node of the iterator
deba@2116:     ///
deba@2116:     /// Returns the running node (ie. the target in this case) of the
deba@2116:     /// iterator
deba@2116:     Node runningNode(const OutEdgeIt &e) const {
deba@2116:       return Parent::target((Edge)e);
deba@2116:     }
deba@2116: 
deba@2116:     /// \brief Base node of the iterator
deba@2116:     ///
deba@2116:     /// Returns the base node (ie. the target in this case) of the iterator
deba@2116:     Node baseNode(const InEdgeIt &e) const {
deba@2116:       return Parent::target((Edge)e);
deba@2116:     }
deba@2116:     /// \brief Running node of the iterator
deba@2116:     ///
deba@2116:     /// Returns the running node (ie. the source in this case) of the
deba@2116:     /// iterator
deba@2116:     Node runningNode(const InEdgeIt &e) const {
deba@2116:       return Parent::source((Edge)e);
deba@2116:     }
deba@2116: 
deba@2116:     /// Base node of the iterator
deba@2116:     ///
deba@2116:     /// Returns the base node of the iterator
deba@2116:     Node baseNode(const IncEdgeIt &e) const {
deba@2116:       return e.direction ? source(e) : target(e);
deba@2116:     }
deba@2116:     /// Running node of the iterator
deba@2116:     ///
deba@2116:     /// Returns the running node of the iterator
deba@2116:     Node runningNode(const IncEdgeIt &e) const {
deba@2116:       return e.direction ? target(e) : source(e);
deba@2116:     }
deba@2116: 
deba@2116:     // Mappable extension
deba@2116: 
deba@2116:     template <typename _Value>
deba@2116:     class NodeMap 
deba@2116:       : public MapExtender<DefaultMap<Graph, Node, _Value> > {
deba@2116:     public:
deba@2116:       typedef UGraphExtender Graph;
deba@2116:       typedef MapExtender<DefaultMap<Graph, Node, _Value> > Parent;
deba@2116: 
deba@2116:       NodeMap(const Graph& graph) 
deba@2116: 	: Parent(graph) {}
deba@2116:       NodeMap(const Graph& graph, const _Value& value) 
deba@2116: 	: Parent(graph, value) {}
deba@2116: 
deba@2116:       NodeMap& operator=(const NodeMap& cmap) {
deba@2116: 	return operator=<NodeMap>(cmap);
deba@2116:       }
deba@2116: 
deba@2116:       template <typename CMap>
deba@2116:       NodeMap& operator=(const CMap& cmap) {
deba@2116:         Parent::operator=(cmap);
deba@2116: 	return *this;
deba@2116:       }
deba@2116: 
deba@2116:     };
deba@2116: 
deba@2116:     template <typename _Value>
deba@2116:     class EdgeMap 
deba@2116:       : public MapExtender<DefaultMap<Graph, Edge, _Value> > {
deba@2116:     public:
deba@2116:       typedef UGraphExtender Graph;
deba@2116:       typedef MapExtender<DefaultMap<Graph, Edge, _Value> > Parent;
deba@2116: 
deba@2116:       EdgeMap(const Graph& graph) 
deba@2116: 	: Parent(graph) {}
deba@2116:       EdgeMap(const Graph& graph, const _Value& value) 
deba@2116: 	: Parent(graph, value) {}
deba@2116: 
deba@2116:       EdgeMap& operator=(const EdgeMap& cmap) {
deba@2116: 	return operator=<EdgeMap>(cmap);
deba@2116:       }
deba@2116: 
deba@2116:       template <typename CMap>
deba@2116:       EdgeMap& operator=(const CMap& cmap) {
deba@2116:         Parent::operator=(cmap);
deba@2116: 	return *this;
deba@2116:       }
deba@2116:     };
deba@2116: 
deba@2116: 
deba@2116:     template <typename _Value>
deba@2116:     class UEdgeMap 
deba@2116:       : public MapExtender<DefaultMap<Graph, UEdge, _Value> > {
deba@2116:     public:
deba@2116:       typedef UGraphExtender Graph;
deba@2116:       typedef MapExtender<DefaultMap<Graph, UEdge, _Value> > Parent;
deba@2116: 
deba@2116:       UEdgeMap(const Graph& graph) 
deba@2116: 	: Parent(graph) {}
deba@2116: 
deba@2116:       UEdgeMap(const Graph& graph, const _Value& value) 
deba@2116: 	: Parent(graph, value) {}
deba@2116: 
deba@2116:       UEdgeMap& operator=(const UEdgeMap& cmap) {
deba@2116: 	return operator=<UEdgeMap>(cmap);
deba@2116:       }
deba@2116: 
deba@2116:       template <typename CMap>
deba@2116:       UEdgeMap& operator=(const CMap& cmap) {
deba@2116:         Parent::operator=(cmap);
deba@2116: 	return *this;
deba@2116:       }
deba@2116: 
deba@2116:     };
deba@2116: 
deba@2116:     // Alteration extension
deba@2116: 
deba@2116:     Node addNode() {
deba@2116:       Node node = Parent::addNode();
deba@2116:       getNotifier(Node()).add(node);
deba@2116:       return node;
deba@2116:     }
deba@2116: 
deba@2116:     UEdge addEdge(const Node& from, const Node& to) {
deba@2116:       UEdge uedge = Parent::addEdge(from, to);
deba@2116:       getNotifier(UEdge()).add(uedge);
deba@2116:       getNotifier(Edge()).add(Parent::direct(uedge, true));
deba@2116:       getNotifier(Edge()).add(Parent::direct(uedge, false));
deba@2116:       return uedge;
deba@2116:     }
deba@2116:     
deba@2116:     void clear() {
deba@2116:       getNotifier(Edge()).clear();
deba@2116:       getNotifier(UEdge()).clear();
deba@2116:       getNotifier(Node()).clear();
deba@2116:       Parent::clear();
deba@2116:     }
deba@2116: 
deba@2116:     void erase(const Node& node) {
deba@2116:       Edge edge;
deba@2116:       Parent::firstOut(edge, node);
deba@2116:       while (edge != INVALID ) {
deba@2116: 	erase(edge);
deba@2116: 	Parent::firstOut(edge, node);
deba@2116:       } 
deba@2116: 
deba@2116:       Parent::firstIn(edge, node);
deba@2116:       while (edge != INVALID ) {
deba@2116: 	erase(edge);
deba@2116: 	Parent::firstIn(edge, node);
deba@2116:       }
deba@2116: 
deba@2116:       getNotifier(Node()).erase(node);
deba@2116:       Parent::erase(node);
deba@2116:     }
deba@2116: 
deba@2116:     void erase(const UEdge& uedge) {
deba@2116:       getNotifier(Edge()).erase(Parent::direct(uedge, true));
deba@2116:       getNotifier(Edge()).erase(Parent::direct(uedge, false));
deba@2116:       getNotifier(UEdge()).erase(uedge);
deba@2116:       Parent::erase(uedge);
deba@2116:     }
deba@2116: 
deba@2116:     UGraphExtender() {
deba@2116:       node_notifier.setContainer(*this); 
deba@2116:       edge_notifier.setContainer(*this);
deba@2116:       uedge_notifier.setContainer(*this);
deba@2116:     } 
deba@2116: 
deba@2116:     ~UGraphExtender() {
deba@2116:       uedge_notifier.clear();
deba@2116:       edge_notifier.clear();
deba@2116:       node_notifier.clear(); 
deba@2116:     } 
deba@2116: 
deba@2116:   };
deba@2116: 
deba@2116:   /// \ingroup graphbits
deba@2116:   ///
deba@2116:   /// \brief Extender for the BpUGraphs
deba@2116:   template <typename Base>
deba@2116:   class BpUGraphExtender : public Base {
deba@2116:   public:
deba@2116:     typedef Base Parent;
deba@2116:     typedef BpUGraphExtender Graph;
deba@2116: 
deba@2116:     typedef typename Parent::Node Node;
deba@2116:     typedef typename Parent::UEdge UEdge;
deba@2116: 
deba@2116: 
deba@2116:     using Parent::first;
deba@2116:     using Parent::next;
deba@2116: 
deba@2116:     using Parent::id;
deba@2116: 
deba@2116:     class ANode : public Node {
deba@2116:       friend class BpUGraphExtender;
deba@2116:     public:
deba@2116:       ANode() {}
deba@2116:       ANode(const Node& node) : Node(node) {
deba@2116: 	LEMON_ASSERT(Parent::aNode(node) || node == INVALID, 
deba@2116: 		     typename Parent::NodeSetError());
deba@2116:       }
deba@2116:       ANode(Invalid) : Node(INVALID) {}
deba@2116:     };
deba@2116: 
deba@2116:     void first(ANode& node) const {
deba@2116:       Parent::firstANode(static_cast<Node&>(node));
deba@2116:     }
deba@2116:     void next(ANode& node) const {
deba@2116:       Parent::nextANode(static_cast<Node&>(node));
deba@2116:     }
deba@2116: 
deba@2116:     int id(const ANode& node) const {
deba@2116:       return Parent::aNodeId(node);
deba@2116:     }
deba@2116: 
deba@2116:     class BNode : public Node {
deba@2116:       friend class BpUGraphExtender;
deba@2116:     public:
deba@2116:       BNode() {}
deba@2116:       BNode(const Node& node) : Node(node) {
deba@2116: 	LEMON_ASSERT(Parent::bNode(node) || node == INVALID,
deba@2116: 		     typename Parent::NodeSetError());
deba@2116:       }
deba@2116:       BNode(Invalid) : Node(INVALID) {}
deba@2116:     };
deba@2116: 
deba@2116:     void first(BNode& node) const {
deba@2116:       Parent::firstBNode(static_cast<Node&>(node));
deba@2116:     }
deba@2116:     void next(BNode& node) const {
deba@2116:       Parent::nextBNode(static_cast<Node&>(node));
deba@2116:     }
deba@2116:   
deba@2116:     int id(const BNode& node) const {
deba@2116:       return Parent::aNodeId(node);
deba@2116:     }
deba@2116: 
deba@2116:     Node source(const UEdge& edge) const {
deba@2116:       return aNode(edge);
deba@2116:     }
deba@2116:     Node target(const UEdge& edge) const {
deba@2116:       return bNode(edge);
deba@2116:     }
deba@2116: 
deba@2116:     void firstInc(UEdge& edge, bool& direction, const Node& node) const {
deba@2116:       if (Parent::aNode(node)) {
deba@2116: 	Parent::firstFromANode(edge, node);
deba@2116: 	direction = true;
deba@2116:       } else {
deba@2116: 	Parent::firstFromBNode(edge, node);
deba@2116: 	direction = static_cast<UEdge&>(edge) == INVALID;
deba@2116:       }
deba@2116:     }
deba@2116:     void nextInc(UEdge& edge, bool& direction) const {
deba@2116:       if (direction) {
deba@2116: 	Parent::nextFromANode(edge);
deba@2116:       } else {
deba@2116: 	Parent::nextFromBNode(edge);
deba@2116: 	if (edge == INVALID) direction = true;
deba@2116:       }
deba@2116:     }
deba@2116: 
deba@2116:     class Edge : public UEdge {
deba@2116:       friend class BpUGraphExtender;
deba@2116:     protected:
deba@2116:       bool forward;
deba@2116: 
deba@2116:       Edge(const UEdge& edge, bool _forward)
deba@2116: 	: UEdge(edge), forward(_forward) {}
deba@2116: 
deba@2116:     public:
deba@2116:       Edge() {}
deba@2116:       Edge (Invalid) : UEdge(INVALID), forward(true) {}
deba@2116:       bool operator==(const Edge& i) const {
deba@2116: 	return UEdge::operator==(i) && forward == i.forward;
deba@2116:       }
deba@2116:       bool operator!=(const Edge& i) const {
deba@2116: 	return UEdge::operator!=(i) || forward != i.forward;
deba@2116:       }
deba@2116:       bool operator<(const Edge& i) const {
deba@2116: 	return UEdge::operator<(i) || 
deba@2116: 	  (!(i.forward<forward) && UEdge(*this)<UEdge(i));
deba@2116:       }
deba@2116:     };
deba@2116: 
deba@2116:     void first(Edge& edge) const {
deba@2116:       Parent::first(static_cast<UEdge&>(edge));
deba@2116:       edge.forward = true;
deba@2116:     }
deba@2116: 
deba@2116:     void next(Edge& edge) const {
deba@2116:       if (!edge.forward) {
deba@2116: 	Parent::next(static_cast<UEdge&>(edge));
deba@2116:       }
deba@2116:       edge.forward = !edge.forward;
deba@2116:     }
deba@2116: 
deba@2116:     void firstOut(Edge& edge, const Node& node) const {
deba@2116:       if (Parent::aNode(node)) {
deba@2116: 	Parent::firstFromANode(edge, node);
deba@2116: 	edge.forward = true;
deba@2116:       } else {
deba@2116: 	Parent::firstFromBNode(edge, node);
deba@2116: 	edge.forward = static_cast<UEdge&>(edge) == INVALID;
deba@2116:       }
deba@2116:     }
deba@2116:     void nextOut(Edge& edge) const {
deba@2116:       if (edge.forward) {
deba@2116: 	Parent::nextFromANode(edge);
deba@2116:       } else {
deba@2116: 	Parent::nextFromBNode(edge);
deba@2116:         edge.forward = static_cast<UEdge&>(edge) == INVALID;
deba@2116:       }
deba@2116:     }
deba@2116: 
deba@2116:     void firstIn(Edge& edge, const Node& node) const {
deba@2116:       if (Parent::bNode(node)) {
deba@2116: 	Parent::firstFromBNode(edge, node);
deba@2116: 	edge.forward = true;	
deba@2116:       } else {
deba@2116: 	Parent::firstFromANode(edge, node);
deba@2116: 	edge.forward = static_cast<UEdge&>(edge) == INVALID;
deba@2116:       }
deba@2116:     }
deba@2116:     void nextIn(Edge& edge) const {
deba@2116:       if (edge.forward) {
deba@2116: 	Parent::nextFromBNode(edge);
deba@2116:       } else {
deba@2116: 	Parent::nextFromANode(edge);
deba@2116: 	edge.forward = static_cast<UEdge&>(edge) == INVALID;
deba@2116:       }
deba@2116:     }
deba@2116: 
deba@2116:     Node source(const Edge& edge) const {
deba@2116:       return edge.forward ? Parent::aNode(edge) : Parent::bNode(edge);
deba@2116:     }
deba@2116:     Node target(const Edge& edge) const {
deba@2116:       return edge.forward ? Parent::bNode(edge) : Parent::aNode(edge);
deba@2116:     }
deba@2116: 
deba@2116:     int id(const Edge& edge) const {
deba@2116:       return (Parent::id(static_cast<const UEdge&>(edge)) << 1) + 
deba@2116:         (edge.forward ? 0 : 1);
deba@2116:     }
deba@2116:     Edge edgeFromId(int id) const {
deba@2116:       return Edge(Parent::fromUEdgeId(id >> 1), (id & 1) == 0);
deba@2116:     }
deba@2116:     int maxEdgeId() const {
deba@2116:       return (Parent::maxUEdgeId(UEdge()) << 1) + 1;
deba@2116:     }
deba@2116: 
deba@2116:     bool direction(const Edge& edge) const {
deba@2116:       return edge.forward;
deba@2116:     }
deba@2116: 
deba@2116:     Edge direct(const UEdge& edge, bool direction) const {
deba@2116:       return Edge(edge, direction);
deba@2116:     }
deba@2116: 
deba@2116:     int edgeNum() const {
deba@2116:       return 2 * Parent::uEdgeNum();
deba@2116:     }
deba@2116: 
deba@2116:     int uEdgeNum() const {
deba@2116:       return Parent::uEdgeNum();
deba@2116:     }
deba@2116: 
deba@2116:     Node oppositeNode(const UEdge& edge, const Node& node) const {
deba@2116:       return source(edge) == node ? 
deba@2116: 	target(edge) : source(edge);
deba@2116:     }
deba@2116: 
deba@2116:     Edge direct(const UEdge& edge, const Node& node) const {
deba@2116:       return Edge(edge, node == Parent::source(edge));
deba@2116:     }
deba@2116: 
deba@2116:     Edge oppositeEdge(const Edge& edge) const {
deba@2116:       return Parent::direct(edge, !Parent::direction(edge));
deba@2116:     }
deba@2116: 
deba@2116: 
deba@2116:     int maxId(Node) const {
deba@2116:       return Parent::maxNodeId();
deba@2116:     }
deba@2116:     int maxId(BNode) const {
deba@2116:       return Parent::maxBNodeId();
deba@2116:     }
deba@2116:     int maxId(ANode) const {
deba@2116:       return Parent::maxANodeId();
deba@2116:     }
deba@2116:     int maxId(Edge) const {
deba@2116:       return maxEdgeId();
deba@2116:     }
deba@2116:     int maxId(UEdge) const {
deba@2116:       return Parent::maxUEdgeId();
deba@2116:     }
deba@2116: 
deba@2116: 
deba@2116:     Node fromId(int id, Node) const {
deba@2116:       return Parent::nodeFromId(id);
deba@2116:     }
deba@2116:     ANode fromId(int id, ANode) const {
deba@2116:       return Parent::fromANodeId(id);
deba@2116:     }
deba@2116:     BNode fromId(int id, BNode) const {
deba@2116:       return Parent::fromBNodeId(id);
deba@2116:     }
deba@2116:     Edge fromId(int id, Edge) const {
deba@2116:       return Parent::edgeFromId(id);
deba@2116:     }
deba@2116:     UEdge fromId(int id, UEdge) const {
deba@2116:       return Parent::uEdgeFromId(id);
deba@2116:     }  
deba@2116:   
deba@2116:     typedef AlterationNotifier<BpUGraphExtender, ANode> ANodeNotifier;
deba@2116:     typedef AlterationNotifier<BpUGraphExtender, BNode> BNodeNotifier;
deba@2116:     typedef AlterationNotifier<BpUGraphExtender, Node> NodeNotifier;
deba@2116:     typedef AlterationNotifier<BpUGraphExtender, Edge> EdgeNotifier;
deba@2116:     typedef AlterationNotifier<BpUGraphExtender, UEdge> UEdgeNotifier;
deba@2116: 
deba@2116:   protected:
deba@2116: 
deba@2116:     mutable ANodeNotifier anode_notifier;
deba@2116:     mutable BNodeNotifier bnode_notifier;
deba@2116:     mutable NodeNotifier node_notifier;
deba@2116:     mutable EdgeNotifier edge_notifier;
deba@2116:     mutable UEdgeNotifier uedge_notifier;
deba@2116: 
deba@2116:   public:
deba@2116: 
deba@2116:     NodeNotifier& getNotifier(Node) const {
deba@2116:       return node_notifier;
deba@2116:     }
deba@2116: 
deba@2116:     ANodeNotifier& getNotifier(ANode) const {
deba@2116:       return anode_notifier;
deba@2116:     }
deba@2116: 
deba@2116:     BNodeNotifier& getNotifier(BNode) const {
deba@2116:       return bnode_notifier;
deba@2116:     }
deba@2116: 
deba@2116:     EdgeNotifier& getNotifier(Edge) const {
deba@2116:       return edge_notifier;
deba@2116:     }
deba@2116: 
deba@2116:     UEdgeNotifier& getNotifier(UEdge) const {
deba@2116:       return uedge_notifier;
deba@2116:     }
deba@2116: 
deba@2116:     class NodeIt : public Node { 
deba@2116:       const Graph* graph;
deba@2116:     public:
deba@2116:     
deba@2116:       NodeIt() { }
deba@2116:     
deba@2116:       NodeIt(Invalid i) : Node(INVALID) { }
deba@2116:     
deba@2116:       explicit NodeIt(const Graph& _graph) : graph(&_graph) {
deba@2116: 	graph->first(static_cast<Node&>(*this));
deba@2116:       }
deba@2116: 
deba@2116:       NodeIt(const Graph& _graph, const Node& node) 
deba@2116: 	: Node(node), graph(&_graph) { }
deba@2116:     
deba@2116:       NodeIt& operator++() { 
deba@2116: 	graph->next(*this);
deba@2116: 	return *this; 
deba@2116:       }
deba@2116: 
deba@2116:     };
deba@2116: 
deba@2116:     class ANodeIt : public Node { 
deba@2116:       friend class BpUGraphExtender;
deba@2116:       const Graph* graph;
deba@2116:     public:
deba@2116:     
deba@2116:       ANodeIt() { }
deba@2116:     
deba@2116:       ANodeIt(Invalid i) : Node(INVALID) { }
deba@2116:     
deba@2116:       explicit ANodeIt(const Graph& _graph) : graph(&_graph) {
deba@2116: 	graph->firstANode(static_cast<Node&>(*this));
deba@2116:       }
deba@2116: 
deba@2116:       ANodeIt(const Graph& _graph, const Node& node) 
deba@2116: 	: Node(node), graph(&_graph) {}
deba@2116:     
deba@2116:       ANodeIt& operator++() { 
deba@2116: 	graph->nextANode(*this);
deba@2116: 	return *this; 
deba@2116:       }
deba@2116:     };
deba@2116: 
deba@2116:     class BNodeIt : public Node { 
deba@2116:       friend class BpUGraphExtender;
deba@2116:       const Graph* graph;
deba@2116:     public:
deba@2116:     
deba@2116:       BNodeIt() { }
deba@2116:     
deba@2116:       BNodeIt(Invalid i) : Node(INVALID) { }
deba@2116:     
deba@2116:       explicit BNodeIt(const Graph& _graph) : graph(&_graph) {
deba@2116: 	graph->firstBNode(static_cast<Node&>(*this));
deba@2116:       }
deba@2116: 
deba@2116:       BNodeIt(const Graph& _graph, const Node& node) 
deba@2116: 	: Node(node), graph(&_graph) {}
deba@2116:     
deba@2116:       BNodeIt& operator++() { 
deba@2116: 	graph->nextBNode(*this);
deba@2116: 	return *this; 
deba@2116:       }
deba@2116:     };
deba@2116: 
deba@2116:     class EdgeIt : public Edge { 
deba@2116:       friend class BpUGraphExtender;
deba@2116:       const Graph* graph;
deba@2116:     public:
deba@2116:     
deba@2116:       EdgeIt() { }
deba@2116:     
deba@2116:       EdgeIt(Invalid i) : Edge(INVALID) { }
deba@2116:     
deba@2116:       explicit EdgeIt(const Graph& _graph) : graph(&_graph) {
deba@2116: 	graph->first(static_cast<Edge&>(*this));
deba@2116:       }
deba@2116: 
deba@2116:       EdgeIt(const Graph& _graph, const Edge& edge) 
deba@2116: 	: Edge(edge), graph(&_graph) { }
deba@2116:     
deba@2116:       EdgeIt& operator++() { 
deba@2116: 	graph->next(*this);
deba@2116: 	return *this; 
deba@2116:       }
deba@2116: 
deba@2116:     };
deba@2116: 
deba@2116:     class UEdgeIt : public UEdge { 
deba@2116:       friend class BpUGraphExtender;
deba@2116:       const Graph* graph;
deba@2116:     public:
deba@2116:     
deba@2116:       UEdgeIt() { }
deba@2116:     
deba@2116:       UEdgeIt(Invalid i) : UEdge(INVALID) { }
deba@2116:     
deba@2116:       explicit UEdgeIt(const Graph& _graph) : graph(&_graph) {
deba@2116: 	graph->first(static_cast<UEdge&>(*this));
deba@2116:       }
deba@2116: 
deba@2116:       UEdgeIt(const Graph& _graph, const UEdge& edge) 
deba@2116: 	: UEdge(edge), graph(&_graph) { }
deba@2116:     
deba@2116:       UEdgeIt& operator++() { 
deba@2116: 	graph->next(*this);
deba@2116: 	return *this; 
deba@2116:       }
deba@2116:     };
deba@2116: 
deba@2116:     class OutEdgeIt : public Edge { 
deba@2116:       friend class BpUGraphExtender;
deba@2116:       const Graph* graph;
deba@2116:     public:
deba@2116:     
deba@2116:       OutEdgeIt() { }
deba@2116:     
deba@2116:       OutEdgeIt(Invalid i) : Edge(i) { }
deba@2116:     
deba@2116:       OutEdgeIt(const Graph& _graph, const Node& node) 
deba@2116: 	: graph(&_graph) {
deba@2116: 	graph->firstOut(*this, node);
deba@2116:       }
deba@2116:     
deba@2116:       OutEdgeIt(const Graph& _graph, const Edge& edge) 
deba@2116: 	: Edge(edge), graph(&_graph) {}
deba@2116:     
deba@2116:       OutEdgeIt& operator++() { 
deba@2116: 	graph->nextOut(*this);
deba@2116: 	return *this; 
deba@2116:       }
deba@2116: 
deba@2116:     };
deba@2116: 
deba@2116: 
deba@2116:     class InEdgeIt : public Edge { 
deba@2116:       friend class BpUGraphExtender;
deba@2116:       const Graph* graph;
deba@2116:     public:
deba@2116:     
deba@2116:       InEdgeIt() { }
deba@2116:     
deba@2116:       InEdgeIt(Invalid i) : Edge(i) { }
deba@2116:     
deba@2116:       InEdgeIt(const Graph& _graph, const Node& node) 
deba@2116: 	: graph(&_graph) {
deba@2116: 	graph->firstIn(*this, node);
deba@2116:       }
deba@2116:     
deba@2116:       InEdgeIt(const Graph& _graph, const Edge& edge) : 
deba@2116: 	Edge(edge), graph(&_graph) {}
deba@2116:     
deba@2116:       InEdgeIt& operator++() { 
deba@2116: 	graph->nextIn(*this);
deba@2116: 	return *this; 
deba@2116:       }
deba@2116: 
deba@2116:     };
deba@2116:   
deba@2116:     /// \brief Base node of the iterator
deba@2116:     ///
deba@2116:     /// Returns the base node (ie. the source in this case) of the iterator
deba@2116:     Node baseNode(const OutEdgeIt &e) const {
deba@2116:       return Parent::source((Edge&)e);
deba@2116:     }
deba@2116:     /// \brief Running node of the iterator
deba@2116:     ///
deba@2116:     /// Returns the running node (ie. the target in this case) of the
deba@2116:     /// iterator
deba@2116:     Node runningNode(const OutEdgeIt &e) const {
deba@2116:       return Parent::target((Edge&)e);
deba@2116:     }
deba@2116:   
deba@2116:     /// \brief Base node of the iterator
deba@2116:     ///
deba@2116:     /// Returns the base node (ie. the target in this case) of the iterator
deba@2116:     Node baseNode(const InEdgeIt &e) const {
deba@2116:       return Parent::target((Edge&)e);
deba@2116:     }
deba@2116:     /// \brief Running node of the iterator
deba@2116:     ///
deba@2116:     /// Returns the running node (ie. the source in this case) of the
deba@2116:     /// iterator
deba@2116:     Node runningNode(const InEdgeIt &e) const {
deba@2116:       return Parent::source((Edge&)e);
deba@2116:     }
deba@2116:   
deba@2116:     class IncEdgeIt : public Parent::UEdge { 
deba@2116:       friend class BpUGraphExtender;
deba@2116:       const Graph* graph;
deba@2116:       bool direction;
deba@2116:     public:
deba@2116:     
deba@2116:       IncEdgeIt() { }
deba@2116:     
deba@2116:       IncEdgeIt(Invalid i) : UEdge(i), direction(true) { }
deba@2116:     
deba@2116:       IncEdgeIt(const Graph& _graph, const Node &n) : graph(&_graph) {
deba@2116: 	graph->firstInc(*this, direction, n);
deba@2116:       }
deba@2116: 
deba@2116:       IncEdgeIt(const Graph& _graph, const UEdge &ue, const Node &n)
deba@2116: 	: graph(&_graph), UEdge(ue) {
deba@2116: 	direction = (graph->source(ue) == n);
deba@2116:       }
deba@2116: 
deba@2116:       IncEdgeIt& operator++() {
deba@2116: 	graph->nextInc(*this, direction);
deba@2116: 	return *this; 
deba@2116:       }
deba@2116:     };
deba@2116:   
deba@2116: 
deba@2116:     /// Base node of the iterator
deba@2116:     ///
deba@2116:     /// Returns the base node of the iterator
deba@2116:     Node baseNode(const IncEdgeIt &e) const {
deba@2116:       return e.direction ? source(e) : target(e);
deba@2116:     }
deba@2116: 
deba@2116:     /// Running node of the iterator
deba@2116:     ///
deba@2116:     /// Returns the running node of the iterator
deba@2116:     Node runningNode(const IncEdgeIt &e) const {
deba@2116:       return e.direction ? target(e) : source(e);
deba@2116:     }
deba@2116: 
deba@2116:     template <typename _Value>
deba@2116:     class ANodeMap 
deba@2116:       : public MapExtender<DefaultMap<Graph, ANode, _Value> > {
deba@2116:     public:
deba@2116:       typedef BpUGraphExtender Graph;
deba@2116:       typedef MapExtender<DefaultMap<Graph, ANode, _Value> > Parent;
deba@2116:     
deba@2116:       ANodeMap(const Graph& graph) 
deba@2116: 	: Parent(graph) {}
deba@2116:       ANodeMap(const Graph& graph, const _Value& value) 
deba@2116: 	: Parent(graph, value) {}
deba@2116:     
deba@2116:       ANodeMap& operator=(const ANodeMap& cmap) {
deba@2116: 	return operator=<ANodeMap>(cmap);
deba@2116:       }
deba@2116:     
deba@2116:       template <typename CMap>
deba@2116:       ANodeMap& operator=(const CMap& cmap) {
deba@2116:         Parent::operator=(cmap);
deba@2116: 	return *this;
deba@2116:       }
deba@2116:     
deba@2116:     };
deba@2116: 
deba@2116:     template <typename _Value>
deba@2116:     class BNodeMap 
deba@2116:       : public MapExtender<DefaultMap<Graph, BNode, _Value> > {
deba@2116:     public:
deba@2116:       typedef BpUGraphExtender Graph;
deba@2116:       typedef MapExtender<DefaultMap<Graph, BNode, _Value> > Parent;
deba@2116:     
deba@2116:       BNodeMap(const Graph& graph) 
deba@2116: 	: Parent(graph) {}
deba@2116:       BNodeMap(const Graph& graph, const _Value& value) 
deba@2116: 	: Parent(graph, value) {}
deba@2116:     
deba@2116:       BNodeMap& operator=(const BNodeMap& cmap) {
deba@2116: 	return operator=<BNodeMap>(cmap);
deba@2116:       }
deba@2116:     
deba@2116:       template <typename CMap>
deba@2116:       BNodeMap& operator=(const CMap& cmap) {
deba@2116:         Parent::operator=(cmap);
deba@2116: 	return *this;
deba@2116:       }
deba@2116:     
deba@2116:     };
deba@2116: 
deba@2116:   public:
deba@2116: 
deba@2116:     template <typename _Value>
deba@2116:     class NodeMap {
deba@2116:     public:
deba@2116:       typedef BpUGraphExtender Graph;
deba@2116: 
deba@2116:       typedef Node Key;
deba@2116:       typedef _Value Value;
deba@2116: 
deba@2116:       /// The reference type of the map;
deba@2116:       typedef typename ANodeMap<_Value>::Reference Reference;
deba@2116:       /// The const reference type of the map;
deba@2116:       typedef typename ANodeMap<_Value>::ConstReference ConstReference;
deba@2116: 
deba@2116:       typedef True ReferenceMapTag;
deba@2116: 
deba@2116:       NodeMap(const Graph& _graph) 
deba@2116: 	: graph(_graph), aNodeMap(_graph), bNodeMap(_graph) {}
deba@2116:       NodeMap(const Graph& _graph, const _Value& _value) 
deba@2116: 	: graph(_graph), aNodeMap(_graph, _value), bNodeMap(_graph, _value) {}
deba@2116: 
deba@2116:       NodeMap& operator=(const NodeMap& cmap) {
deba@2116: 	return operator=<NodeMap>(cmap);
deba@2116:       }
deba@2116:     
deba@2116:       template <typename CMap>
deba@2116:       NodeMap& operator=(const CMap& cmap) {
deba@2116: 	checkConcept<concept::ReadMap<Node, _Value>, CMap>();
deba@2116: 	const typename Parent::Notifier* notifier = Parent::getNotifier();
deba@2116: 	Edge it;
deba@2116: 	for (graph.first(it); it != INVALID; graph.next(it)) {
deba@2116: 	  Parent::set(it, cmap[it]);
deba@2116: 	}
deba@2116: 	return *this;
deba@2116:       }
deba@2116: 
deba@2116:       ConstReference operator[](const Key& node) const {
deba@2116: 	if (Parent::aNode(node)) {
deba@2116: 	  return aNodeMap[node];
deba@2116: 	} else {
deba@2116: 	  return bNodeMap[node];
deba@2116: 	}
deba@2116:       } 
deba@2116: 
deba@2116:       Reference operator[](const Key& node) {
deba@2116: 	if (Parent::aNode(node)) {
deba@2116: 	  return aNodeMap[node];
deba@2116: 	} else {
deba@2116: 	  return bNodeMap[node];
deba@2116: 	}
deba@2116:       }
deba@2116: 
deba@2116:       void set(const Key& node, const Value& value) {
deba@2116: 	if (Parent::aNode(node)) {
deba@2116: 	  aNodeMap.set(node, value);
deba@2116: 	} else {
deba@2116: 	  bNodeMap.set(node, value);
deba@2116: 	}
deba@2116:       }
deba@2116: 
deba@2116:       class MapIt : public NodeIt {
deba@2116:       public:
deba@2116: 
deba@2116:         typedef NodeIt Parent;
deba@2116:         
deba@2116:         explicit MapIt(NodeMap& _map) 
deba@2116:           : Parent(_map.graph), map(_map) {}
deba@2116:         
deba@2116:         typename MapTraits<NodeMap>::ConstReturnValue operator*() const {
deba@2116:           return map[*this];
deba@2116:         }
deba@2116:         
deba@2116:         typename MapTraits<NodeMap>::ReturnValue operator*() {
deba@2116:           return map[*this];
deba@2116:         }
deba@2116:         
deba@2116:         void set(const Value& value) {
deba@2116:           map.set(*this, value);
deba@2116:         }
deba@2116: 
deba@2116:       private:
deba@2116:         NodeMap& map;
deba@2116:       };
deba@2116: 
deba@2116:       class ConstMapIt : public NodeIt {
deba@2116:       public:
deba@2116: 
deba@2116:         typedef NodeIt Parent;
deba@2116:         
deba@2116:         explicit ConstMapIt(const NodeMap& _map) 
deba@2116:           : Parent(_map.graph), map(_map) {}
deba@2116:         
deba@2116:         typename MapTraits<NodeMap>::ConstReturnValue operator*() const {
deba@2116:           return map[*this];
deba@2116:         }
deba@2116:         
deba@2116:       private:
deba@2116:         const NodeMap& map;
deba@2116:       };
deba@2116: 
deba@2116:       class ItemIt : public NodeIt {
deba@2116:       public:
deba@2116: 
deba@2116:         typedef NodeIt Parent;
deba@2116: 
deba@2116:         explicit ItemIt(const NodeMap& _map)
deba@2116:           : Parent(_map.graph) {}
deba@2116:         
deba@2116:       };
deba@2116:       
deba@2116:     private:
deba@2116:       const Graph& graph;
deba@2116:       ANodeMap<_Value> aNodeMap;
deba@2116:       BNodeMap<_Value> bNodeMap;
deba@2116:     };
deba@2116:     
deba@2116: 
deba@2116:     template <typename _Value>
deba@2116:     class EdgeMap 
deba@2116:       : public MapExtender<DefaultMap<Graph, Edge, _Value> > {
deba@2116:     public:
deba@2116:       typedef BpUGraphExtender Graph;
deba@2116:       typedef MapExtender<DefaultMap<Graph, Edge, _Value> > Parent;
deba@2116:     
deba@2116:       EdgeMap(const Graph& graph) 
deba@2116: 	: Parent(graph) {}
deba@2116:       EdgeMap(const Graph& graph, const _Value& value) 
deba@2116: 	: Parent(graph, value) {}
deba@2116:     
deba@2116:       EdgeMap& operator=(const EdgeMap& cmap) {
deba@2116: 	return operator=<EdgeMap>(cmap);
deba@2116:       }
deba@2116:     
deba@2116:       template <typename CMap>
deba@2116:       EdgeMap& operator=(const CMap& cmap) {
deba@2116:         Parent::operator=(cmap);
deba@2116: 	return *this;
deba@2116:       }
deba@2116:     };
deba@2116: 
deba@2116:     template <typename _Value>
deba@2116:     class UEdgeMap 
deba@2116:       : public MapExtender<DefaultMap<Graph, UEdge, _Value> > {
deba@2116:     public:
deba@2116:       typedef BpUGraphExtender Graph;
deba@2116:       typedef MapExtender<DefaultMap<Graph, UEdge, _Value> > Parent;
deba@2116:     
deba@2116:       UEdgeMap(const Graph& graph) 
deba@2116: 	: Parent(graph) {}
deba@2116:       UEdgeMap(const Graph& graph, const _Value& value) 
deba@2116: 	: Parent(graph, value) {}
deba@2116:     
deba@2116:       UEdgeMap& operator=(const UEdgeMap& cmap) {
deba@2116: 	return operator=<UEdgeMap>(cmap);
deba@2116:       }
deba@2116:     
deba@2116:       template <typename CMap>
deba@2116:       UEdgeMap& operator=(const CMap& cmap) {
deba@2116:         Parent::operator=(cmap);
deba@2116: 	return *this;
deba@2116:       }
deba@2116:     };
deba@2116: 
deba@2116:   
deba@2116:     Node addANode() {
deba@2116:       Node node = Parent::addANode();
deba@2116:       getNotifier(ANode()).add(node);
deba@2116:       getNotifier(Node()).add(node);
deba@2116:       return node;
deba@2116:     }
deba@2116: 
deba@2116:     Node addBNode() {
deba@2116:       Node node = Parent::addBNode();
deba@2116:       getNotifier(BNode()).add(node);
deba@2116:       getNotifier(Node()).add(node);
deba@2116:       return node;
deba@2116:     }
deba@2116:   
deba@2116:     UEdge addEdge(const Node& source, const Node& target) {
deba@2116:       UEdge uedge = Parent::addEdge(source, target);
deba@2116:       getNotifier(UEdge()).add(uedge);
deba@2116:     
deba@2116:       std::vector<Edge> edges;
deba@2116:       edges.push_back(direct(uedge, true));
deba@2116:       edges.push_back(direct(uedge, false));
deba@2116:       getNotifier(Edge()).add(edges);
deba@2116:     
deba@2116:       return uedge;
deba@2116:     }
deba@2116: 
deba@2116:     void clear() {
deba@2116:       getNotifier(Edge()).clear();
deba@2116:       getNotifier(UEdge()).clear();
deba@2116:       getNotifier(Node()).clear();
deba@2116:       getNotifier(BNode()).clear();
deba@2116:       getNotifier(ANode()).clear();
deba@2116:       Parent::clear();
deba@2116:     }
deba@2116: 
deba@2116:     void erase(const Node& node) {
deba@2116:       UEdge uedge;
deba@2116:       if (Parent::aNode(node)) {
deba@2116:         Parent::firstFromANode(uedge, node);
deba@2116:         while (uedge != INVALID) {
deba@2116:           erase(uedge);
deba@2116:           Parent::firstFromANode(uedge, node);
deba@2116:         }
deba@2203:         getNotifier(ANode()).erase(node);
deba@2116:       } else {
deba@2116:         Parent::firstFromBNode(uedge, node);
deba@2116:         while (uedge != INVALID) {
deba@2116:           erase(uedge);
deba@2116:           Parent::firstFromBNode(uedge, node);
deba@2116:         }
deba@2203:         getNotifier(BNode()).erase(node);
deba@2116:       }
deba@2116: 
deba@2116:       getNotifier(Node()).erase(node);
deba@2116:       Parent::erase(node);
deba@2116:     }
deba@2116:     
deba@2116:     void erase(const UEdge& uedge) {
deba@2116:       std::vector<Edge> edges;
deba@2116:       edges.push_back(direct(uedge, true));
deba@2116:       edges.push_back(direct(uedge, false));
deba@2116:       getNotifier(Edge()).erase(edges);
deba@2116:       getNotifier(UEdge()).erase(uedge);
deba@2116:       Parent::erase(uedge);
deba@2116:     }
deba@2116: 
deba@2116: 
deba@2116:     BpUGraphExtender() {
deba@2116:       anode_notifier.setContainer(*this); 
deba@2116:       bnode_notifier.setContainer(*this); 
deba@2116:       node_notifier.setContainer(*this); 
deba@2116:       edge_notifier.setContainer(*this); 
deba@2116:       uedge_notifier.setContainer(*this);
deba@2116:     } 
deba@2116: 
deba@2116:     ~BpUGraphExtender() {
deba@2116:       uedge_notifier.clear();
deba@2116:       edge_notifier.clear(); 
deba@2116:       node_notifier.clear(); 
deba@2116:       anode_notifier.clear(); 
deba@2116:       bnode_notifier.clear(); 
deba@2116:     }
deba@2116: 
deba@2222:     Edge findEdge(Node u, Node v, Edge prev = INVALID) const {
deba@2222:       UEdge uedge = Parent::findUEdge(u, v, prev);
deba@2222:       if (uedge != INVALID) {
deba@2222:         return direct(uedge, Parent::aNode(u));
deba@2222:       } else {
deba@2222:         return INVALID;
deba@2222:       }
deba@2222:     }
deba@2116: 
deba@2116:   };
deba@2116: 
deba@1791: }
deba@1791: 
deba@1996: #endif