lemon/bits/graph_extender.h
changeset 2148 ab368e0ab662
parent 2115 4cd528a30ec1
child 2203 5f1a83b565fb
equal deleted inserted replaced
19:59194476e414 20:47dc397870ae
    18 
    18 
    19 #ifndef LEMON_BITS_GRAPH_EXTENDER_H
    19 #ifndef LEMON_BITS_GRAPH_EXTENDER_H
    20 #define LEMON_BITS_GRAPH_EXTENDER_H
    20 #define LEMON_BITS_GRAPH_EXTENDER_H
    21 
    21 
    22 #include <lemon/bits/invalid.h>
    22 #include <lemon/bits/invalid.h>
       
    23 #include <lemon/error.h>
    23 
    24 
    24 #include <lemon/bits/map_extender.h>
    25 #include <lemon/bits/map_extender.h>
    25 #include <lemon/bits/default_map.h>
    26 #include <lemon/bits/default_map.h>
       
    27 
       
    28 #include <lemon/concept_check.h>
       
    29 #include <lemon/concept/maps.h>
    26 
    30 
    27 ///\ingroup graphbits
    31 ///\ingroup graphbits
    28 ///\file
    32 ///\file
    29 ///\brief Extenders for the graph types
    33 ///\brief Extenders for the graph types
    30 namespace lemon {
    34 namespace lemon {
   312       edge_notifier.clear();
   316       edge_notifier.clear();
   313       node_notifier.clear();
   317       node_notifier.clear();
   314     }
   318     }
   315   };
   319   };
   316 
   320 
       
   321   /// \ingroup graphbits
       
   322   ///
       
   323   /// \brief Extender for the UGraphs
       
   324   template <typename Base> 
       
   325   class UGraphExtender : public Base {
       
   326   public:
       
   327     
       
   328     typedef Base Parent;
       
   329     typedef UGraphExtender Graph;
       
   330 
       
   331     typedef typename Parent::Node Node;
       
   332     typedef typename Parent::Edge Edge;
       
   333     typedef typename Parent::UEdge UEdge;
       
   334 
       
   335     // UGraph extension    
       
   336 
       
   337     int maxId(Node) const {
       
   338       return Parent::maxNodeId();
       
   339     }
       
   340 
       
   341     int maxId(Edge) const {
       
   342       return Parent::maxEdgeId();
       
   343     }
       
   344 
       
   345     int maxId(UEdge) const {
       
   346       return Parent::maxUEdgeId();
       
   347     }
       
   348 
       
   349     Node fromId(int id, Node) const {
       
   350       return Parent::nodeFromId(id);
       
   351     }
       
   352 
       
   353     Edge fromId(int id, Edge) const {
       
   354       return Parent::edgeFromId(id);
       
   355     }
       
   356 
       
   357     UEdge fromId(int id, UEdge) const {
       
   358       return Parent::uEdgeFromId(id);
       
   359     }
       
   360 
       
   361     Node oppositeNode(const Node &n, const UEdge &e) const {
       
   362       if( n == Parent::source(e))
       
   363 	return Parent::target(e);
       
   364       else if( n == Parent::target(e))
       
   365 	return Parent::source(e);
       
   366       else
       
   367 	return INVALID;
       
   368     }
       
   369 
       
   370     Edge oppositeEdge(const Edge &e) const {
       
   371       return Parent::direct(e, !Parent::direction(e));
       
   372     }
       
   373 
       
   374     using Parent::direct;
       
   375     Edge direct(const UEdge &ue, const Node &s) const {
       
   376       return Parent::direct(ue, Parent::source(ue) == s);
       
   377     }
       
   378 
       
   379     // Alterable extension
       
   380 
       
   381     typedef AlterationNotifier<UGraphExtender, Node> NodeNotifier;
       
   382     typedef AlterationNotifier<UGraphExtender, Edge> EdgeNotifier;
       
   383     typedef AlterationNotifier<UGraphExtender, UEdge> UEdgeNotifier;
       
   384 
       
   385 
       
   386   protected:
       
   387 
       
   388     mutable NodeNotifier node_notifier;
       
   389     mutable EdgeNotifier edge_notifier;
       
   390     mutable UEdgeNotifier uedge_notifier;
       
   391 
       
   392   public:
       
   393 
       
   394     NodeNotifier& getNotifier(Node) const {
       
   395       return node_notifier;
       
   396     }
       
   397     
       
   398     EdgeNotifier& getNotifier(Edge) const {
       
   399       return edge_notifier;
       
   400     }
       
   401 
       
   402     UEdgeNotifier& getNotifier(UEdge) const {
       
   403       return uedge_notifier;
       
   404     }
       
   405 
       
   406 
       
   407 
       
   408     class NodeIt : public Node { 
       
   409       const Graph* graph;
       
   410     public:
       
   411 
       
   412       NodeIt() {}
       
   413 
       
   414       NodeIt(Invalid i) : Node(i) { }
       
   415 
       
   416       explicit NodeIt(const Graph& _graph) : graph(&_graph) {
       
   417 	_graph.first(static_cast<Node&>(*this));
       
   418       }
       
   419 
       
   420       NodeIt(const Graph& _graph, const Node& node) 
       
   421 	: Node(node), graph(&_graph) {}
       
   422 
       
   423       NodeIt& operator++() { 
       
   424 	graph->next(*this);
       
   425 	return *this; 
       
   426       }
       
   427 
       
   428     };
       
   429 
       
   430 
       
   431     class EdgeIt : public Edge { 
       
   432       const Graph* graph;
       
   433     public:
       
   434 
       
   435       EdgeIt() { }
       
   436 
       
   437       EdgeIt(Invalid i) : Edge(i) { }
       
   438 
       
   439       explicit EdgeIt(const Graph& _graph) : graph(&_graph) {
       
   440 	_graph.first(static_cast<Edge&>(*this));
       
   441       }
       
   442 
       
   443       EdgeIt(const Graph& _graph, const Edge& e) : 
       
   444 	Edge(e), graph(&_graph) { }
       
   445 
       
   446       EdgeIt& operator++() { 
       
   447 	graph->next(*this);
       
   448 	return *this; 
       
   449       }
       
   450 
       
   451     };
       
   452 
       
   453 
       
   454     class OutEdgeIt : public Edge { 
       
   455       const Graph* graph;
       
   456     public:
       
   457 
       
   458       OutEdgeIt() { }
       
   459 
       
   460       OutEdgeIt(Invalid i) : Edge(i) { }
       
   461 
       
   462       OutEdgeIt(const Graph& _graph, const Node& node) 
       
   463 	: graph(&_graph) {
       
   464 	_graph.firstOut(*this, node);
       
   465       }
       
   466 
       
   467       OutEdgeIt(const Graph& _graph, const Edge& edge) 
       
   468 	: Edge(edge), graph(&_graph) {}
       
   469 
       
   470       OutEdgeIt& operator++() { 
       
   471 	graph->nextOut(*this);
       
   472 	return *this; 
       
   473       }
       
   474 
       
   475     };
       
   476 
       
   477 
       
   478     class InEdgeIt : public Edge { 
       
   479       const Graph* graph;
       
   480     public:
       
   481 
       
   482       InEdgeIt() { }
       
   483 
       
   484       InEdgeIt(Invalid i) : Edge(i) { }
       
   485 
       
   486       InEdgeIt(const Graph& _graph, const Node& node) 
       
   487 	: graph(&_graph) {
       
   488 	_graph.firstIn(*this, node);
       
   489       }
       
   490 
       
   491       InEdgeIt(const Graph& _graph, const Edge& edge) : 
       
   492 	Edge(edge), graph(&_graph) {}
       
   493 
       
   494       InEdgeIt& operator++() { 
       
   495 	graph->nextIn(*this);
       
   496 	return *this; 
       
   497       }
       
   498 
       
   499     };
       
   500 
       
   501 
       
   502     class UEdgeIt : public Parent::UEdge { 
       
   503       const Graph* graph;
       
   504     public:
       
   505 
       
   506       UEdgeIt() { }
       
   507 
       
   508       UEdgeIt(Invalid i) : UEdge(i) { }
       
   509 
       
   510       explicit UEdgeIt(const Graph& _graph) : graph(&_graph) {
       
   511 	_graph.first(static_cast<UEdge&>(*this));
       
   512       }
       
   513 
       
   514       UEdgeIt(const Graph& _graph, const UEdge& e) : 
       
   515 	UEdge(e), graph(&_graph) { }
       
   516 
       
   517       UEdgeIt& operator++() { 
       
   518 	graph->next(*this);
       
   519 	return *this; 
       
   520       }
       
   521 
       
   522     };
       
   523 
       
   524     class IncEdgeIt : public Parent::UEdge {
       
   525       friend class UGraphExtender;
       
   526       const Graph* graph;
       
   527       bool direction;
       
   528     public:
       
   529 
       
   530       IncEdgeIt() { }
       
   531 
       
   532       IncEdgeIt(Invalid i) : UEdge(i), direction(false) { }
       
   533 
       
   534       IncEdgeIt(const Graph& _graph, const Node &n) : graph(&_graph) {
       
   535 	_graph.firstInc(*this, direction, n);
       
   536       }
       
   537 
       
   538       IncEdgeIt(const Graph& _graph, const UEdge &ue, const Node &n)
       
   539 	: graph(&_graph), UEdge(ue) {
       
   540 	direction = (_graph.source(ue) == n);
       
   541       }
       
   542 
       
   543       IncEdgeIt& operator++() {
       
   544 	graph->nextInc(*this, direction);
       
   545 	return *this; 
       
   546       }
       
   547     };
       
   548 
       
   549     /// \brief Base node of the iterator
       
   550     ///
       
   551     /// Returns the base node (ie. the source in this case) of the iterator
       
   552     Node baseNode(const OutEdgeIt &e) const {
       
   553       return Parent::source((Edge)e);
       
   554     }
       
   555     /// \brief Running node of the iterator
       
   556     ///
       
   557     /// Returns the running node (ie. the target in this case) of the
       
   558     /// iterator
       
   559     Node runningNode(const OutEdgeIt &e) const {
       
   560       return Parent::target((Edge)e);
       
   561     }
       
   562 
       
   563     /// \brief Base node of the iterator
       
   564     ///
       
   565     /// Returns the base node (ie. the target in this case) of the iterator
       
   566     Node baseNode(const InEdgeIt &e) const {
       
   567       return Parent::target((Edge)e);
       
   568     }
       
   569     /// \brief Running node of the iterator
       
   570     ///
       
   571     /// Returns the running node (ie. the source in this case) of the
       
   572     /// iterator
       
   573     Node runningNode(const InEdgeIt &e) const {
       
   574       return Parent::source((Edge)e);
       
   575     }
       
   576 
       
   577     /// Base node of the iterator
       
   578     ///
       
   579     /// Returns the base node of the iterator
       
   580     Node baseNode(const IncEdgeIt &e) const {
       
   581       return e.direction ? source(e) : target(e);
       
   582     }
       
   583     /// Running node of the iterator
       
   584     ///
       
   585     /// Returns the running node of the iterator
       
   586     Node runningNode(const IncEdgeIt &e) const {
       
   587       return e.direction ? target(e) : source(e);
       
   588     }
       
   589 
       
   590     // Mappable extension
       
   591 
       
   592     template <typename _Value>
       
   593     class NodeMap 
       
   594       : public MapExtender<DefaultMap<Graph, Node, _Value> > {
       
   595     public:
       
   596       typedef UGraphExtender Graph;
       
   597       typedef MapExtender<DefaultMap<Graph, Node, _Value> > Parent;
       
   598 
       
   599       NodeMap(const Graph& graph) 
       
   600 	: Parent(graph) {}
       
   601       NodeMap(const Graph& graph, const _Value& value) 
       
   602 	: Parent(graph, value) {}
       
   603 
       
   604       NodeMap& operator=(const NodeMap& cmap) {
       
   605 	return operator=<NodeMap>(cmap);
       
   606       }
       
   607 
       
   608       template <typename CMap>
       
   609       NodeMap& operator=(const CMap& cmap) {
       
   610         Parent::operator=(cmap);
       
   611 	return *this;
       
   612       }
       
   613 
       
   614     };
       
   615 
       
   616     template <typename _Value>
       
   617     class EdgeMap 
       
   618       : public MapExtender<DefaultMap<Graph, Edge, _Value> > {
       
   619     public:
       
   620       typedef UGraphExtender Graph;
       
   621       typedef MapExtender<DefaultMap<Graph, Edge, _Value> > Parent;
       
   622 
       
   623       EdgeMap(const Graph& graph) 
       
   624 	: Parent(graph) {}
       
   625       EdgeMap(const Graph& graph, const _Value& value) 
       
   626 	: Parent(graph, value) {}
       
   627 
       
   628       EdgeMap& operator=(const EdgeMap& cmap) {
       
   629 	return operator=<EdgeMap>(cmap);
       
   630       }
       
   631 
       
   632       template <typename CMap>
       
   633       EdgeMap& operator=(const CMap& cmap) {
       
   634         Parent::operator=(cmap);
       
   635 	return *this;
       
   636       }
       
   637     };
       
   638 
       
   639 
       
   640     template <typename _Value>
       
   641     class UEdgeMap 
       
   642       : public MapExtender<DefaultMap<Graph, UEdge, _Value> > {
       
   643     public:
       
   644       typedef UGraphExtender Graph;
       
   645       typedef MapExtender<DefaultMap<Graph, UEdge, _Value> > Parent;
       
   646 
       
   647       UEdgeMap(const Graph& graph) 
       
   648 	: Parent(graph) {}
       
   649 
       
   650       UEdgeMap(const Graph& graph, const _Value& value) 
       
   651 	: Parent(graph, value) {}
       
   652 
       
   653       UEdgeMap& operator=(const UEdgeMap& cmap) {
       
   654 	return operator=<UEdgeMap>(cmap);
       
   655       }
       
   656 
       
   657       template <typename CMap>
       
   658       UEdgeMap& operator=(const CMap& cmap) {
       
   659         Parent::operator=(cmap);
       
   660 	return *this;
       
   661       }
       
   662 
       
   663     };
       
   664 
       
   665     // Alteration extension
       
   666 
       
   667     Node addNode() {
       
   668       Node node = Parent::addNode();
       
   669       getNotifier(Node()).add(node);
       
   670       return node;
       
   671     }
       
   672 
       
   673     UEdge addEdge(const Node& from, const Node& to) {
       
   674       UEdge uedge = Parent::addEdge(from, to);
       
   675       getNotifier(UEdge()).add(uedge);
       
   676       getNotifier(Edge()).add(Parent::direct(uedge, true));
       
   677       getNotifier(Edge()).add(Parent::direct(uedge, false));
       
   678       return uedge;
       
   679     }
       
   680     
       
   681     void clear() {
       
   682       getNotifier(Edge()).clear();
       
   683       getNotifier(UEdge()).clear();
       
   684       getNotifier(Node()).clear();
       
   685       Parent::clear();
       
   686     }
       
   687 
       
   688     void erase(const Node& node) {
       
   689       Edge edge;
       
   690       Parent::firstOut(edge, node);
       
   691       while (edge != INVALID ) {
       
   692 	erase(edge);
       
   693 	Parent::firstOut(edge, node);
       
   694       } 
       
   695 
       
   696       Parent::firstIn(edge, node);
       
   697       while (edge != INVALID ) {
       
   698 	erase(edge);
       
   699 	Parent::firstIn(edge, node);
       
   700       }
       
   701 
       
   702       getNotifier(Node()).erase(node);
       
   703       Parent::erase(node);
       
   704     }
       
   705 
       
   706     void erase(const UEdge& uedge) {
       
   707       getNotifier(Edge()).erase(Parent::direct(uedge, true));
       
   708       getNotifier(Edge()).erase(Parent::direct(uedge, false));
       
   709       getNotifier(UEdge()).erase(uedge);
       
   710       Parent::erase(uedge);
       
   711     }
       
   712 
       
   713     UGraphExtender() {
       
   714       node_notifier.setContainer(*this); 
       
   715       edge_notifier.setContainer(*this);
       
   716       uedge_notifier.setContainer(*this);
       
   717     } 
       
   718 
       
   719     ~UGraphExtender() {
       
   720       uedge_notifier.clear();
       
   721       edge_notifier.clear();
       
   722       node_notifier.clear(); 
       
   723     } 
       
   724 
       
   725   };
       
   726 
       
   727   /// \ingroup graphbits
       
   728   ///
       
   729   /// \brief Extender for the BpUGraphs
       
   730   template <typename Base>
       
   731   class BpUGraphExtender : public Base {
       
   732   public:
       
   733     typedef Base Parent;
       
   734     typedef BpUGraphExtender Graph;
       
   735 
       
   736     typedef typename Parent::Node Node;
       
   737     typedef typename Parent::UEdge UEdge;
       
   738 
       
   739 
       
   740     using Parent::first;
       
   741     using Parent::next;
       
   742 
       
   743     using Parent::id;
       
   744 
       
   745     class ANode : public Node {
       
   746       friend class BpUGraphExtender;
       
   747     public:
       
   748       ANode() {}
       
   749       ANode(const Node& node) : Node(node) {
       
   750 	LEMON_ASSERT(Parent::aNode(node) || node == INVALID, 
       
   751 		     typename Parent::NodeSetError());
       
   752       }
       
   753       ANode(Invalid) : Node(INVALID) {}
       
   754     };
       
   755 
       
   756     void first(ANode& node) const {
       
   757       Parent::firstANode(static_cast<Node&>(node));
       
   758     }
       
   759     void next(ANode& node) const {
       
   760       Parent::nextANode(static_cast<Node&>(node));
       
   761     }
       
   762 
       
   763     int id(const ANode& node) const {
       
   764       return Parent::aNodeId(node);
       
   765     }
       
   766 
       
   767     class BNode : public Node {
       
   768       friend class BpUGraphExtender;
       
   769     public:
       
   770       BNode() {}
       
   771       BNode(const Node& node) : Node(node) {
       
   772 	LEMON_ASSERT(Parent::bNode(node) || node == INVALID,
       
   773 		     typename Parent::NodeSetError());
       
   774       }
       
   775       BNode(Invalid) : Node(INVALID) {}
       
   776     };
       
   777 
       
   778     void first(BNode& node) const {
       
   779       Parent::firstBNode(static_cast<Node&>(node));
       
   780     }
       
   781     void next(BNode& node) const {
       
   782       Parent::nextBNode(static_cast<Node&>(node));
       
   783     }
       
   784   
       
   785     int id(const BNode& node) const {
       
   786       return Parent::aNodeId(node);
       
   787     }
       
   788 
       
   789     Node source(const UEdge& edge) const {
       
   790       return aNode(edge);
       
   791     }
       
   792     Node target(const UEdge& edge) const {
       
   793       return bNode(edge);
       
   794     }
       
   795 
       
   796     void firstInc(UEdge& edge, bool& direction, const Node& node) const {
       
   797       if (Parent::aNode(node)) {
       
   798 	Parent::firstFromANode(edge, node);
       
   799 	direction = true;
       
   800       } else {
       
   801 	Parent::firstFromBNode(edge, node);
       
   802 	direction = static_cast<UEdge&>(edge) == INVALID;
       
   803       }
       
   804     }
       
   805     void nextInc(UEdge& edge, bool& direction) const {
       
   806       if (direction) {
       
   807 	Parent::nextFromANode(edge);
       
   808       } else {
       
   809 	Parent::nextFromBNode(edge);
       
   810 	if (edge == INVALID) direction = true;
       
   811       }
       
   812     }
       
   813 
       
   814     class Edge : public UEdge {
       
   815       friend class BpUGraphExtender;
       
   816     protected:
       
   817       bool forward;
       
   818 
       
   819       Edge(const UEdge& edge, bool _forward)
       
   820 	: UEdge(edge), forward(_forward) {}
       
   821 
       
   822     public:
       
   823       Edge() {}
       
   824       Edge (Invalid) : UEdge(INVALID), forward(true) {}
       
   825       bool operator==(const Edge& i) const {
       
   826 	return UEdge::operator==(i) && forward == i.forward;
       
   827       }
       
   828       bool operator!=(const Edge& i) const {
       
   829 	return UEdge::operator!=(i) || forward != i.forward;
       
   830       }
       
   831       bool operator<(const Edge& i) const {
       
   832 	return UEdge::operator<(i) || 
       
   833 	  (!(i.forward<forward) && UEdge(*this)<UEdge(i));
       
   834       }
       
   835     };
       
   836 
       
   837     void first(Edge& edge) const {
       
   838       Parent::first(static_cast<UEdge&>(edge));
       
   839       edge.forward = true;
       
   840     }
       
   841 
       
   842     void next(Edge& edge) const {
       
   843       if (!edge.forward) {
       
   844 	Parent::next(static_cast<UEdge&>(edge));
       
   845       }
       
   846       edge.forward = !edge.forward;
       
   847     }
       
   848 
       
   849     void firstOut(Edge& edge, const Node& node) const {
       
   850       if (Parent::aNode(node)) {
       
   851 	Parent::firstFromANode(edge, node);
       
   852 	edge.forward = true;
       
   853       } else {
       
   854 	Parent::firstFromBNode(edge, node);
       
   855 	edge.forward = static_cast<UEdge&>(edge) == INVALID;
       
   856       }
       
   857     }
       
   858     void nextOut(Edge& edge) const {
       
   859       if (edge.forward) {
       
   860 	Parent::nextFromANode(edge);
       
   861       } else {
       
   862 	Parent::nextFromBNode(edge);
       
   863         edge.forward = static_cast<UEdge&>(edge) == INVALID;
       
   864       }
       
   865     }
       
   866 
       
   867     void firstIn(Edge& edge, const Node& node) const {
       
   868       if (Parent::bNode(node)) {
       
   869 	Parent::firstFromBNode(edge, node);
       
   870 	edge.forward = true;	
       
   871       } else {
       
   872 	Parent::firstFromANode(edge, node);
       
   873 	edge.forward = static_cast<UEdge&>(edge) == INVALID;
       
   874       }
       
   875     }
       
   876     void nextIn(Edge& edge) const {
       
   877       if (edge.forward) {
       
   878 	Parent::nextFromBNode(edge);
       
   879       } else {
       
   880 	Parent::nextFromANode(edge);
       
   881 	edge.forward = static_cast<UEdge&>(edge) == INVALID;
       
   882       }
       
   883     }
       
   884 
       
   885     Node source(const Edge& edge) const {
       
   886       return edge.forward ? Parent::aNode(edge) : Parent::bNode(edge);
       
   887     }
       
   888     Node target(const Edge& edge) const {
       
   889       return edge.forward ? Parent::bNode(edge) : Parent::aNode(edge);
       
   890     }
       
   891 
       
   892     int id(const Edge& edge) const {
       
   893       return (Parent::id(static_cast<const UEdge&>(edge)) << 1) + 
       
   894         (edge.forward ? 0 : 1);
       
   895     }
       
   896     Edge edgeFromId(int id) const {
       
   897       return Edge(Parent::fromUEdgeId(id >> 1), (id & 1) == 0);
       
   898     }
       
   899     int maxEdgeId() const {
       
   900       return (Parent::maxUEdgeId(UEdge()) << 1) + 1;
       
   901     }
       
   902 
       
   903     bool direction(const Edge& edge) const {
       
   904       return edge.forward;
       
   905     }
       
   906 
       
   907     Edge direct(const UEdge& edge, bool direction) const {
       
   908       return Edge(edge, direction);
       
   909     }
       
   910 
       
   911     int edgeNum() const {
       
   912       return 2 * Parent::uEdgeNum();
       
   913     }
       
   914 
       
   915     int uEdgeNum() const {
       
   916       return Parent::uEdgeNum();
       
   917     }
       
   918 
       
   919     Node oppositeNode(const UEdge& edge, const Node& node) const {
       
   920       return source(edge) == node ? 
       
   921 	target(edge) : source(edge);
       
   922     }
       
   923 
       
   924     Edge direct(const UEdge& edge, const Node& node) const {
       
   925       return Edge(edge, node == Parent::source(edge));
       
   926     }
       
   927 
       
   928     Edge oppositeEdge(const Edge& edge) const {
       
   929       return Parent::direct(edge, !Parent::direction(edge));
       
   930     }
       
   931 
       
   932 
       
   933     int maxId(Node) const {
       
   934       return Parent::maxNodeId();
       
   935     }
       
   936     int maxId(BNode) const {
       
   937       return Parent::maxBNodeId();
       
   938     }
       
   939     int maxId(ANode) const {
       
   940       return Parent::maxANodeId();
       
   941     }
       
   942     int maxId(Edge) const {
       
   943       return maxEdgeId();
       
   944     }
       
   945     int maxId(UEdge) const {
       
   946       return Parent::maxUEdgeId();
       
   947     }
       
   948 
       
   949 
       
   950     Node fromId(int id, Node) const {
       
   951       return Parent::nodeFromId(id);
       
   952     }
       
   953     ANode fromId(int id, ANode) const {
       
   954       return Parent::fromANodeId(id);
       
   955     }
       
   956     BNode fromId(int id, BNode) const {
       
   957       return Parent::fromBNodeId(id);
       
   958     }
       
   959     Edge fromId(int id, Edge) const {
       
   960       return Parent::edgeFromId(id);
       
   961     }
       
   962     UEdge fromId(int id, UEdge) const {
       
   963       return Parent::uEdgeFromId(id);
       
   964     }  
       
   965   
       
   966     typedef AlterationNotifier<BpUGraphExtender, ANode> ANodeNotifier;
       
   967     typedef AlterationNotifier<BpUGraphExtender, BNode> BNodeNotifier;
       
   968     typedef AlterationNotifier<BpUGraphExtender, Node> NodeNotifier;
       
   969     typedef AlterationNotifier<BpUGraphExtender, Edge> EdgeNotifier;
       
   970     typedef AlterationNotifier<BpUGraphExtender, UEdge> UEdgeNotifier;
       
   971 
       
   972   protected:
       
   973 
       
   974     mutable ANodeNotifier anode_notifier;
       
   975     mutable BNodeNotifier bnode_notifier;
       
   976     mutable NodeNotifier node_notifier;
       
   977     mutable EdgeNotifier edge_notifier;
       
   978     mutable UEdgeNotifier uedge_notifier;
       
   979 
       
   980   public:
       
   981 
       
   982     NodeNotifier& getNotifier(Node) const {
       
   983       return node_notifier;
       
   984     }
       
   985 
       
   986     ANodeNotifier& getNotifier(ANode) const {
       
   987       return anode_notifier;
       
   988     }
       
   989 
       
   990     BNodeNotifier& getNotifier(BNode) const {
       
   991       return bnode_notifier;
       
   992     }
       
   993 
       
   994     EdgeNotifier& getNotifier(Edge) const {
       
   995       return edge_notifier;
       
   996     }
       
   997 
       
   998     UEdgeNotifier& getNotifier(UEdge) const {
       
   999       return uedge_notifier;
       
  1000     }
       
  1001 
       
  1002     class NodeIt : public Node { 
       
  1003       const Graph* graph;
       
  1004     public:
       
  1005     
       
  1006       NodeIt() { }
       
  1007     
       
  1008       NodeIt(Invalid i) : Node(INVALID) { }
       
  1009     
       
  1010       explicit NodeIt(const Graph& _graph) : graph(&_graph) {
       
  1011 	graph->first(static_cast<Node&>(*this));
       
  1012       }
       
  1013 
       
  1014       NodeIt(const Graph& _graph, const Node& node) 
       
  1015 	: Node(node), graph(&_graph) { }
       
  1016     
       
  1017       NodeIt& operator++() { 
       
  1018 	graph->next(*this);
       
  1019 	return *this; 
       
  1020       }
       
  1021 
       
  1022     };
       
  1023 
       
  1024     class ANodeIt : public Node { 
       
  1025       friend class BpUGraphExtender;
       
  1026       const Graph* graph;
       
  1027     public:
       
  1028     
       
  1029       ANodeIt() { }
       
  1030     
       
  1031       ANodeIt(Invalid i) : Node(INVALID) { }
       
  1032     
       
  1033       explicit ANodeIt(const Graph& _graph) : graph(&_graph) {
       
  1034 	graph->firstANode(static_cast<Node&>(*this));
       
  1035       }
       
  1036 
       
  1037       ANodeIt(const Graph& _graph, const Node& node) 
       
  1038 	: Node(node), graph(&_graph) {}
       
  1039     
       
  1040       ANodeIt& operator++() { 
       
  1041 	graph->nextANode(*this);
       
  1042 	return *this; 
       
  1043       }
       
  1044     };
       
  1045 
       
  1046     class BNodeIt : public Node { 
       
  1047       friend class BpUGraphExtender;
       
  1048       const Graph* graph;
       
  1049     public:
       
  1050     
       
  1051       BNodeIt() { }
       
  1052     
       
  1053       BNodeIt(Invalid i) : Node(INVALID) { }
       
  1054     
       
  1055       explicit BNodeIt(const Graph& _graph) : graph(&_graph) {
       
  1056 	graph->firstBNode(static_cast<Node&>(*this));
       
  1057       }
       
  1058 
       
  1059       BNodeIt(const Graph& _graph, const Node& node) 
       
  1060 	: Node(node), graph(&_graph) {}
       
  1061     
       
  1062       BNodeIt& operator++() { 
       
  1063 	graph->nextBNode(*this);
       
  1064 	return *this; 
       
  1065       }
       
  1066     };
       
  1067 
       
  1068     class EdgeIt : public Edge { 
       
  1069       friend class BpUGraphExtender;
       
  1070       const Graph* graph;
       
  1071     public:
       
  1072     
       
  1073       EdgeIt() { }
       
  1074     
       
  1075       EdgeIt(Invalid i) : Edge(INVALID) { }
       
  1076     
       
  1077       explicit EdgeIt(const Graph& _graph) : graph(&_graph) {
       
  1078 	graph->first(static_cast<Edge&>(*this));
       
  1079       }
       
  1080 
       
  1081       EdgeIt(const Graph& _graph, const Edge& edge) 
       
  1082 	: Edge(edge), graph(&_graph) { }
       
  1083     
       
  1084       EdgeIt& operator++() { 
       
  1085 	graph->next(*this);
       
  1086 	return *this; 
       
  1087       }
       
  1088 
       
  1089     };
       
  1090 
       
  1091     class UEdgeIt : public UEdge { 
       
  1092       friend class BpUGraphExtender;
       
  1093       const Graph* graph;
       
  1094     public:
       
  1095     
       
  1096       UEdgeIt() { }
       
  1097     
       
  1098       UEdgeIt(Invalid i) : UEdge(INVALID) { }
       
  1099     
       
  1100       explicit UEdgeIt(const Graph& _graph) : graph(&_graph) {
       
  1101 	graph->first(static_cast<UEdge&>(*this));
       
  1102       }
       
  1103 
       
  1104       UEdgeIt(const Graph& _graph, const UEdge& edge) 
       
  1105 	: UEdge(edge), graph(&_graph) { }
       
  1106     
       
  1107       UEdgeIt& operator++() { 
       
  1108 	graph->next(*this);
       
  1109 	return *this; 
       
  1110       }
       
  1111     };
       
  1112 
       
  1113     class OutEdgeIt : public Edge { 
       
  1114       friend class BpUGraphExtender;
       
  1115       const Graph* graph;
       
  1116     public:
       
  1117     
       
  1118       OutEdgeIt() { }
       
  1119     
       
  1120       OutEdgeIt(Invalid i) : Edge(i) { }
       
  1121     
       
  1122       OutEdgeIt(const Graph& _graph, const Node& node) 
       
  1123 	: graph(&_graph) {
       
  1124 	graph->firstOut(*this, node);
       
  1125       }
       
  1126     
       
  1127       OutEdgeIt(const Graph& _graph, const Edge& edge) 
       
  1128 	: Edge(edge), graph(&_graph) {}
       
  1129     
       
  1130       OutEdgeIt& operator++() { 
       
  1131 	graph->nextOut(*this);
       
  1132 	return *this; 
       
  1133       }
       
  1134 
       
  1135     };
       
  1136 
       
  1137 
       
  1138     class InEdgeIt : public Edge { 
       
  1139       friend class BpUGraphExtender;
       
  1140       const Graph* graph;
       
  1141     public:
       
  1142     
       
  1143       InEdgeIt() { }
       
  1144     
       
  1145       InEdgeIt(Invalid i) : Edge(i) { }
       
  1146     
       
  1147       InEdgeIt(const Graph& _graph, const Node& node) 
       
  1148 	: graph(&_graph) {
       
  1149 	graph->firstIn(*this, node);
       
  1150       }
       
  1151     
       
  1152       InEdgeIt(const Graph& _graph, const Edge& edge) : 
       
  1153 	Edge(edge), graph(&_graph) {}
       
  1154     
       
  1155       InEdgeIt& operator++() { 
       
  1156 	graph->nextIn(*this);
       
  1157 	return *this; 
       
  1158       }
       
  1159 
       
  1160     };
       
  1161   
       
  1162     /// \brief Base node of the iterator
       
  1163     ///
       
  1164     /// Returns the base node (ie. the source in this case) of the iterator
       
  1165     Node baseNode(const OutEdgeIt &e) const {
       
  1166       return Parent::source((Edge&)e);
       
  1167     }
       
  1168     /// \brief Running node of the iterator
       
  1169     ///
       
  1170     /// Returns the running node (ie. the target in this case) of the
       
  1171     /// iterator
       
  1172     Node runningNode(const OutEdgeIt &e) const {
       
  1173       return Parent::target((Edge&)e);
       
  1174     }
       
  1175   
       
  1176     /// \brief Base node of the iterator
       
  1177     ///
       
  1178     /// Returns the base node (ie. the target in this case) of the iterator
       
  1179     Node baseNode(const InEdgeIt &e) const {
       
  1180       return Parent::target((Edge&)e);
       
  1181     }
       
  1182     /// \brief Running node of the iterator
       
  1183     ///
       
  1184     /// Returns the running node (ie. the source in this case) of the
       
  1185     /// iterator
       
  1186     Node runningNode(const InEdgeIt &e) const {
       
  1187       return Parent::source((Edge&)e);
       
  1188     }
       
  1189   
       
  1190     class IncEdgeIt : public Parent::UEdge { 
       
  1191       friend class BpUGraphExtender;
       
  1192       const Graph* graph;
       
  1193       bool direction;
       
  1194     public:
       
  1195     
       
  1196       IncEdgeIt() { }
       
  1197     
       
  1198       IncEdgeIt(Invalid i) : UEdge(i), direction(true) { }
       
  1199     
       
  1200       IncEdgeIt(const Graph& _graph, const Node &n) : graph(&_graph) {
       
  1201 	graph->firstInc(*this, direction, n);
       
  1202       }
       
  1203 
       
  1204       IncEdgeIt(const Graph& _graph, const UEdge &ue, const Node &n)
       
  1205 	: graph(&_graph), UEdge(ue) {
       
  1206 	direction = (graph->source(ue) == n);
       
  1207       }
       
  1208 
       
  1209       IncEdgeIt& operator++() {
       
  1210 	graph->nextInc(*this, direction);
       
  1211 	return *this; 
       
  1212       }
       
  1213     };
       
  1214   
       
  1215 
       
  1216     /// Base node of the iterator
       
  1217     ///
       
  1218     /// Returns the base node of the iterator
       
  1219     Node baseNode(const IncEdgeIt &e) const {
       
  1220       return e.direction ? source(e) : target(e);
       
  1221     }
       
  1222 
       
  1223     /// Running node of the iterator
       
  1224     ///
       
  1225     /// Returns the running node of the iterator
       
  1226     Node runningNode(const IncEdgeIt &e) const {
       
  1227       return e.direction ? target(e) : source(e);
       
  1228     }
       
  1229 
       
  1230     template <typename _Value>
       
  1231     class ANodeMap 
       
  1232       : public MapExtender<DefaultMap<Graph, ANode, _Value> > {
       
  1233     public:
       
  1234       typedef BpUGraphExtender Graph;
       
  1235       typedef MapExtender<DefaultMap<Graph, ANode, _Value> > Parent;
       
  1236     
       
  1237       ANodeMap(const Graph& graph) 
       
  1238 	: Parent(graph) {}
       
  1239       ANodeMap(const Graph& graph, const _Value& value) 
       
  1240 	: Parent(graph, value) {}
       
  1241     
       
  1242       ANodeMap& operator=(const ANodeMap& cmap) {
       
  1243 	return operator=<ANodeMap>(cmap);
       
  1244       }
       
  1245     
       
  1246       template <typename CMap>
       
  1247       ANodeMap& operator=(const CMap& cmap) {
       
  1248         Parent::operator=(cmap);
       
  1249 	return *this;
       
  1250       }
       
  1251     
       
  1252     };
       
  1253 
       
  1254     template <typename _Value>
       
  1255     class BNodeMap 
       
  1256       : public MapExtender<DefaultMap<Graph, BNode, _Value> > {
       
  1257     public:
       
  1258       typedef BpUGraphExtender Graph;
       
  1259       typedef MapExtender<DefaultMap<Graph, BNode, _Value> > Parent;
       
  1260     
       
  1261       BNodeMap(const Graph& graph) 
       
  1262 	: Parent(graph) {}
       
  1263       BNodeMap(const Graph& graph, const _Value& value) 
       
  1264 	: Parent(graph, value) {}
       
  1265     
       
  1266       BNodeMap& operator=(const BNodeMap& cmap) {
       
  1267 	return operator=<BNodeMap>(cmap);
       
  1268       }
       
  1269     
       
  1270       template <typename CMap>
       
  1271       BNodeMap& operator=(const CMap& cmap) {
       
  1272         Parent::operator=(cmap);
       
  1273 	return *this;
       
  1274       }
       
  1275     
       
  1276     };
       
  1277 
       
  1278   public:
       
  1279 
       
  1280     template <typename _Value>
       
  1281     class NodeMap {
       
  1282     public:
       
  1283       typedef BpUGraphExtender Graph;
       
  1284 
       
  1285       typedef Node Key;
       
  1286       typedef _Value Value;
       
  1287 
       
  1288       /// The reference type of the map;
       
  1289       typedef typename ANodeMap<_Value>::Reference Reference;
       
  1290       /// The const reference type of the map;
       
  1291       typedef typename ANodeMap<_Value>::ConstReference ConstReference;
       
  1292 
       
  1293       typedef True ReferenceMapTag;
       
  1294 
       
  1295       NodeMap(const Graph& _graph) 
       
  1296 	: graph(_graph), aNodeMap(_graph), bNodeMap(_graph) {}
       
  1297       NodeMap(const Graph& _graph, const _Value& _value) 
       
  1298 	: graph(_graph), aNodeMap(_graph, _value), bNodeMap(_graph, _value) {}
       
  1299 
       
  1300       NodeMap& operator=(const NodeMap& cmap) {
       
  1301 	return operator=<NodeMap>(cmap);
       
  1302       }
       
  1303     
       
  1304       template <typename CMap>
       
  1305       NodeMap& operator=(const CMap& cmap) {
       
  1306 	checkConcept<concept::ReadMap<Node, _Value>, CMap>();
       
  1307 	const typename Parent::Notifier* notifier = Parent::getNotifier();
       
  1308 	Edge it;
       
  1309 	for (graph.first(it); it != INVALID; graph.next(it)) {
       
  1310 	  Parent::set(it, cmap[it]);
       
  1311 	}
       
  1312 	return *this;
       
  1313       }
       
  1314 
       
  1315       ConstReference operator[](const Key& node) const {
       
  1316 	if (Parent::aNode(node)) {
       
  1317 	  return aNodeMap[node];
       
  1318 	} else {
       
  1319 	  return bNodeMap[node];
       
  1320 	}
       
  1321       } 
       
  1322 
       
  1323       Reference operator[](const Key& node) {
       
  1324 	if (Parent::aNode(node)) {
       
  1325 	  return aNodeMap[node];
       
  1326 	} else {
       
  1327 	  return bNodeMap[node];
       
  1328 	}
       
  1329       }
       
  1330 
       
  1331       void set(const Key& node, const Value& value) {
       
  1332 	if (Parent::aNode(node)) {
       
  1333 	  aNodeMap.set(node, value);
       
  1334 	} else {
       
  1335 	  bNodeMap.set(node, value);
       
  1336 	}
       
  1337       }
       
  1338 
       
  1339       class MapIt : public NodeIt {
       
  1340       public:
       
  1341 
       
  1342         typedef NodeIt Parent;
       
  1343         
       
  1344         explicit MapIt(NodeMap& _map) 
       
  1345           : Parent(_map.graph), map(_map) {}
       
  1346         
       
  1347         typename MapTraits<NodeMap>::ConstReturnValue operator*() const {
       
  1348           return map[*this];
       
  1349         }
       
  1350         
       
  1351         typename MapTraits<NodeMap>::ReturnValue operator*() {
       
  1352           return map[*this];
       
  1353         }
       
  1354         
       
  1355         void set(const Value& value) {
       
  1356           map.set(*this, value);
       
  1357         }
       
  1358 
       
  1359       private:
       
  1360         NodeMap& map;
       
  1361       };
       
  1362 
       
  1363       class ConstMapIt : public NodeIt {
       
  1364       public:
       
  1365 
       
  1366         typedef NodeIt Parent;
       
  1367         
       
  1368         explicit ConstMapIt(const NodeMap& _map) 
       
  1369           : Parent(_map.graph), map(_map) {}
       
  1370         
       
  1371         typename MapTraits<NodeMap>::ConstReturnValue operator*() const {
       
  1372           return map[*this];
       
  1373         }
       
  1374         
       
  1375       private:
       
  1376         const NodeMap& map;
       
  1377       };
       
  1378 
       
  1379       class ItemIt : public NodeIt {
       
  1380       public:
       
  1381 
       
  1382         typedef NodeIt Parent;
       
  1383 
       
  1384         explicit ItemIt(const NodeMap& _map)
       
  1385           : Parent(_map.graph) {}
       
  1386         
       
  1387       };
       
  1388       
       
  1389     private:
       
  1390       const Graph& graph;
       
  1391       ANodeMap<_Value> aNodeMap;
       
  1392       BNodeMap<_Value> bNodeMap;
       
  1393     };
       
  1394     
       
  1395 
       
  1396     template <typename _Value>
       
  1397     class EdgeMap 
       
  1398       : public MapExtender<DefaultMap<Graph, Edge, _Value> > {
       
  1399     public:
       
  1400       typedef BpUGraphExtender Graph;
       
  1401       typedef MapExtender<DefaultMap<Graph, Edge, _Value> > Parent;
       
  1402     
       
  1403       EdgeMap(const Graph& graph) 
       
  1404 	: Parent(graph) {}
       
  1405       EdgeMap(const Graph& graph, const _Value& value) 
       
  1406 	: Parent(graph, value) {}
       
  1407     
       
  1408       EdgeMap& operator=(const EdgeMap& cmap) {
       
  1409 	return operator=<EdgeMap>(cmap);
       
  1410       }
       
  1411     
       
  1412       template <typename CMap>
       
  1413       EdgeMap& operator=(const CMap& cmap) {
       
  1414         Parent::operator=(cmap);
       
  1415 	return *this;
       
  1416       }
       
  1417     };
       
  1418 
       
  1419     template <typename _Value>
       
  1420     class UEdgeMap 
       
  1421       : public MapExtender<DefaultMap<Graph, UEdge, _Value> > {
       
  1422     public:
       
  1423       typedef BpUGraphExtender Graph;
       
  1424       typedef MapExtender<DefaultMap<Graph, UEdge, _Value> > Parent;
       
  1425     
       
  1426       UEdgeMap(const Graph& graph) 
       
  1427 	: Parent(graph) {}
       
  1428       UEdgeMap(const Graph& graph, const _Value& value) 
       
  1429 	: Parent(graph, value) {}
       
  1430     
       
  1431       UEdgeMap& operator=(const UEdgeMap& cmap) {
       
  1432 	return operator=<UEdgeMap>(cmap);
       
  1433       }
       
  1434     
       
  1435       template <typename CMap>
       
  1436       UEdgeMap& operator=(const CMap& cmap) {
       
  1437         Parent::operator=(cmap);
       
  1438 	return *this;
       
  1439       }
       
  1440     };
       
  1441 
       
  1442   
       
  1443     Node addANode() {
       
  1444       Node node = Parent::addANode();
       
  1445       getNotifier(ANode()).add(node);
       
  1446       getNotifier(Node()).add(node);
       
  1447       return node;
       
  1448     }
       
  1449 
       
  1450     Node addBNode() {
       
  1451       Node node = Parent::addBNode();
       
  1452       getNotifier(BNode()).add(node);
       
  1453       getNotifier(Node()).add(node);
       
  1454       return node;
       
  1455     }
       
  1456   
       
  1457     UEdge addEdge(const Node& source, const Node& target) {
       
  1458       UEdge uedge = Parent::addEdge(source, target);
       
  1459       getNotifier(UEdge()).add(uedge);
       
  1460     
       
  1461       std::vector<Edge> edges;
       
  1462       edges.push_back(direct(uedge, true));
       
  1463       edges.push_back(direct(uedge, false));
       
  1464       getNotifier(Edge()).add(edges);
       
  1465     
       
  1466       return uedge;
       
  1467     }
       
  1468 
       
  1469     void clear() {
       
  1470       getNotifier(Edge()).clear();
       
  1471       getNotifier(UEdge()).clear();
       
  1472       getNotifier(Node()).clear();
       
  1473       getNotifier(BNode()).clear();
       
  1474       getNotifier(ANode()).clear();
       
  1475       Parent::clear();
       
  1476     }
       
  1477 
       
  1478     void erase(const Node& node) {
       
  1479       UEdge uedge;
       
  1480       if (Parent::aNode(node)) {
       
  1481         Parent::firstFromANode(uedge, node);
       
  1482         while (uedge != INVALID) {
       
  1483           erase(uedge);
       
  1484           Parent::firstFromANode(uedge, node);
       
  1485         }
       
  1486       } else {
       
  1487         Parent::firstFromBNode(uedge, node);
       
  1488         while (uedge != INVALID) {
       
  1489           erase(uedge);
       
  1490           Parent::firstFromBNode(uedge, node);
       
  1491         }
       
  1492       }
       
  1493 
       
  1494       getNotifier(Node()).erase(node);
       
  1495       Parent::erase(node);
       
  1496     }
       
  1497     
       
  1498     void erase(const UEdge& uedge) {
       
  1499       std::vector<Edge> edges;
       
  1500       edges.push_back(direct(uedge, true));
       
  1501       edges.push_back(direct(uedge, false));
       
  1502       getNotifier(Edge()).erase(edges);
       
  1503       getNotifier(UEdge()).erase(uedge);
       
  1504       Parent::erase(uedge);
       
  1505     }
       
  1506 
       
  1507 
       
  1508     BpUGraphExtender() {
       
  1509       anode_notifier.setContainer(*this); 
       
  1510       bnode_notifier.setContainer(*this); 
       
  1511       node_notifier.setContainer(*this); 
       
  1512       edge_notifier.setContainer(*this); 
       
  1513       uedge_notifier.setContainer(*this);
       
  1514     } 
       
  1515 
       
  1516     ~BpUGraphExtender() {
       
  1517       uedge_notifier.clear();
       
  1518       edge_notifier.clear(); 
       
  1519       node_notifier.clear(); 
       
  1520       anode_notifier.clear(); 
       
  1521       bnode_notifier.clear(); 
       
  1522     }
       
  1523 
       
  1524 
       
  1525   };
       
  1526 
   317 }
  1527 }
   318 
  1528 
   319 #endif
  1529 #endif