[2031] | 1 | /* -*- C++ -*- |
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| 2 | * |
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| 3 | * This file is a part of LEMON, a generic C++ optimization library |
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| 4 | * |
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| 5 | * Copyright (C) 2003-2006 |
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| 6 | * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport |
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| 7 | * (Egervary Research Group on Combinatorial Optimization, EGRES). |
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| 8 | * |
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| 9 | * Permission to use, modify and distribute this software is granted |
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| 10 | * provided that this copyright notice appears in all copies. For |
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| 11 | * precise terms see the accompanying LICENSE file. |
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| 12 | * |
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| 13 | * This software is provided "AS IS" with no warranty of any kind, |
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| 14 | * express or implied, and with no claim as to its suitability for any |
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| 15 | * purpose. |
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| 16 | * |
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| 17 | */ |
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| 18 | |
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| 19 | #ifndef LEMON_BPUGRAPH_ADAPTOR_H |
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| 20 | #define LEMON_BPUGRAPH_ADAPTOR_H |
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| 21 | |
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| 22 | #include <lemon/bits/invalid.h> |
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| 23 | #include <lemon/maps.h> |
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| 24 | |
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| 25 | #include <lemon/bits/graph_adaptor_extender.h> |
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| 26 | |
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| 27 | #include <lemon/bits/traits.h> |
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| 28 | |
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| 29 | #include <iostream> |
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| 30 | |
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| 31 | ///\ingroup graph_adaptors |
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| 32 | ///\file |
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| 33 | ///\brief Several graph adaptors. |
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| 34 | /// |
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| 35 | ///This file contains several useful bpugraph adaptor functions. |
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| 36 | /// |
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| 37 | ///\author Balazs Dezso |
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| 38 | |
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| 39 | namespace lemon { |
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| 40 | |
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| 41 | /// \ingroup graph_adaptors |
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| 42 | /// |
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| 43 | /// \brief Base type for the Bipartite Undirected Graph Adaptors |
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| 44 | /// |
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| 45 | /// This is the base type for most of LEMON bpugraph adaptors. |
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| 46 | /// This class implements a trivial graph adaptor i.e. it only wraps the |
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| 47 | /// functions and types of the graph. The purpose of this class is to |
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| 48 | /// make easier implementing graph adaptors. E.g. if an adaptor is |
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| 49 | /// considered which differs from the wrapped graph only in some of its |
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| 50 | /// functions or types, then it can be derived from BpUGraphAdaptor, and |
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| 51 | /// only the differences should be implemented. |
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| 52 | /// |
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| 53 | /// \author Balazs Dezso |
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| 54 | template<typename _BpUGraph> |
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| 55 | class BpUGraphAdaptorBase { |
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| 56 | public: |
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| 57 | typedef _BpUGraph Graph; |
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| 58 | typedef Graph ParentGraph; |
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| 59 | |
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| 60 | protected: |
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| 61 | Graph* graph; |
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| 62 | |
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| 63 | BpUGraphAdaptorBase() : graph(0) {} |
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| 64 | |
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| 65 | void setGraph(Graph& _graph) { graph = &_graph; } |
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| 66 | |
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| 67 | Graph& getGraph() { return *graph; } |
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| 68 | const Graph& getGraph() const { return *graph; } |
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| 69 | |
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| 70 | public: |
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| 71 | |
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| 72 | BpUGraphAdaptorBase(Graph& _graph) : graph(&_graph) {} |
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| 73 | |
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| 74 | typedef typename Graph::Node Node; |
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| 75 | typedef typename Graph::ANode ANode; |
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| 76 | typedef typename Graph::BNode BNode; |
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| 77 | typedef typename Graph::Edge Edge; |
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| 78 | typedef typename Graph::UEdge UEdge; |
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| 79 | |
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| 80 | void first(Node& i) const { graph->first(i); } |
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| 81 | void firstANode(Node& i) const { graph->firstANode(i); } |
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| 82 | void firstBNode(Node& i) const { graph->firstBNode(i); } |
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| 83 | void first(Edge& i) const { graph->first(i); } |
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| 84 | void first(UEdge& i) const { graph->first(i); } |
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| 85 | void firstIn(Edge& i, const Node& n) const { graph->firstIn(i, n); } |
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| 86 | void firstOut(Edge& i, const Node& n ) const { graph->firstOut(i, n); } |
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| 87 | void firstInc(UEdge &i, bool &d, const Node &n) const { |
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| 88 | graph->firstInc(i, d, n); |
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| 89 | } |
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| 90 | |
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| 91 | void next(Node& i) const { graph->next(i); } |
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| 92 | void nextANode(Node& i) const { graph->nextANode(i); } |
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| 93 | void nextBNode(Node& i) const { graph->nextBNode(i); } |
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| 94 | void next(Edge& i) const { graph->next(i); } |
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| 95 | void next(UEdge& i) const { graph->next(i); } |
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| 96 | void nextIn(Edge& i) const { graph->nextIn(i); } |
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| 97 | void nextOut(Edge& i) const { graph->nextOut(i); } |
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| 98 | void nextInc(UEdge &i, bool &d) const { graph->nextInc(i, d); } |
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| 99 | |
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| 100 | Node source(const UEdge& e) const { return graph->source(e); } |
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| 101 | Node target(const UEdge& e) const { return graph->target(e); } |
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| 102 | |
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| 103 | Node source(const Edge& e) const { return graph->source(e); } |
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| 104 | Node target(const Edge& e) const { return graph->target(e); } |
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| 105 | |
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| 106 | typedef NodeNumTagIndicator<Graph> NodeNumTag; |
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| 107 | int nodeNum() const { return graph->nodeNum(); } |
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| 108 | int aNodeNum() const { return graph->aNodeNum(); } |
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| 109 | int bNodeNum() const { return graph->bNodeNum(); } |
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| 110 | |
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| 111 | typedef EdgeNumTagIndicator<Graph> EdgeNumTag; |
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| 112 | int edgeNum() const { return graph->edgeNum(); } |
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| 113 | int uEdgeNum() const { return graph->uEdgeNum(); } |
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| 114 | |
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| 115 | typedef FindEdgeTagIndicator<Graph> FindEdgeTag; |
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| 116 | Edge findEdge(const Node& source, const Node& target, |
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| 117 | const Edge& prev = INVALID) { |
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| 118 | return graph->findEdge(source, target, prev); |
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| 119 | } |
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| 120 | UEdge findUEdge(const Node& source, const Node& target, |
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| 121 | const UEdge& prev = INVALID) { |
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| 122 | return graph->findUEdge(source, target, prev); |
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| 123 | } |
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| 124 | |
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| 125 | Node addNode() const { return graph->addNode(); } |
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| 126 | UEdge addEdge(const Node& source, const Node& target) const { |
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| 127 | return graph->addEdge(source, target); |
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| 128 | } |
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| 129 | |
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| 130 | void erase(const Node& i) const { graph->erase(i); } |
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| 131 | void erase(const UEdge& i) const { graph->erase(i); } |
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| 132 | |
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| 133 | void clear() const { graph->clear(); } |
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| 134 | |
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| 135 | bool direction(const Edge& e) const { return graph->direction(e); } |
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| 136 | Edge direct(const UEdge& e, bool d) const { return graph->direct(e, d); } |
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| 137 | |
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| 138 | int id(const Node& v) const { return graph->id(v); } |
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| 139 | int id(const ANode& v) const { return graph->id(v); } |
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| 140 | int id(const BNode& v) const { return graph->id(v); } |
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| 141 | int id(const Edge& e) const { return graph->id(e); } |
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| 142 | int id(const UEdge& e) const { return graph->id(e); } |
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| 143 | |
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| 144 | Node fromNodeId(int id) const { return graph->fromNodeId(id); } |
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| 145 | ANode fromANodeId(int id) const { return graph->fromANodeId(id); } |
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| 146 | BNode fromBNodeId(int id) const { return graph->fromBNodeId(id); } |
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| 147 | Edge fromEdgeId(int id) const { return graph->fromEdgeId(id); } |
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| 148 | UEdge fromUEdgeId(int id) const { return graph->fromUEdgeId(id); } |
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| 149 | |
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| 150 | int maxNodeId() const { return graph->maxNodeId(); } |
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| 151 | int maxANodeId() const { return graph->maxANodeId(); } |
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| 152 | int maxBNodeId() const { return graph->maxBNodeId(); } |
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| 153 | int maxEdgeId() const { return graph->maxEdgeId(); } |
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| 154 | int maxUEdgeId() const { return graph->maxEdgeId(); } |
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| 155 | |
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| 156 | typedef typename ItemSetTraits<Graph, Node>::ItemNotifier NodeNotifier; |
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| 157 | NodeNotifier& getNotifier(Node) const { |
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| 158 | return graph->getNotifier(Node()); |
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| 159 | } |
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| 160 | |
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| 161 | typedef typename ItemSetTraits<Graph, ANode>::ItemNotifier ANodeNotifier; |
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| 162 | ANodeNotifier& getNotifier(ANode) const { |
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| 163 | return graph->getNotifier(ANode()); |
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| 164 | } |
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| 165 | |
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| 166 | typedef typename ItemSetTraits<Graph, BNode>::ItemNotifier BNodeNotifier; |
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| 167 | BNodeNotifier& getNotifier(BNode) const { |
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| 168 | return graph->getNotifier(BNode()); |
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| 169 | } |
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| 170 | |
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| 171 | typedef typename ItemSetTraits<Graph, Edge>::ItemNotifier EdgeNotifier; |
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| 172 | EdgeNotifier& getNotifier(Edge) const { |
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| 173 | return graph->getNotifier(Edge()); |
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| 174 | } |
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| 175 | |
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| 176 | typedef typename ItemSetTraits<Graph, UEdge>::ItemNotifier UEdgeNotifier; |
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| 177 | UEdgeNotifier& getNotifier(UEdge) const { |
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| 178 | return graph->getNotifier(UEdge()); |
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| 179 | } |
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| 180 | |
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| 181 | template <typename _Value> |
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| 182 | class NodeMap : public Graph::template NodeMap<_Value> { |
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| 183 | public: |
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| 184 | typedef typename Graph::template NodeMap<_Value> Parent; |
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| 185 | explicit NodeMap(const BpUGraphAdaptorBase<Graph>& ga) |
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| 186 | : Parent(*ga.graph) {} |
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| 187 | NodeMap(const BpUGraphAdaptorBase<Graph>& ga, const _Value& value) |
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| 188 | : Parent(*ga.graph, value) {} |
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| 189 | |
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| 190 | NodeMap& operator=(const NodeMap& cmap) { |
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| 191 | return operator=<NodeMap>(cmap); |
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| 192 | } |
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| 193 | |
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| 194 | template <typename CMap> |
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| 195 | NodeMap& operator=(const CMap& cmap) { |
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| 196 | Parent::operator=(cmap); |
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| 197 | return *this; |
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| 198 | } |
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| 199 | }; |
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| 200 | |
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| 201 | template <typename _Value> |
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| 202 | class ANodeMap : public Graph::template ANodeMap<_Value> { |
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| 203 | public: |
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| 204 | typedef typename Graph::template ANodeMap<_Value> Parent; |
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| 205 | explicit ANodeMap(const BpUGraphAdaptorBase& ga) |
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| 206 | : Parent(*ga.graph) {} |
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| 207 | ANodeMap(const BpUGraphAdaptorBase& ga, const _Value& value) |
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| 208 | : Parent(*ga.graph, value) {} |
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| 209 | |
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| 210 | ANodeMap& operator=(const ANodeMap& cmap) { |
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| 211 | return operator=<ANodeMap>(cmap); |
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| 212 | } |
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| 213 | |
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| 214 | template <typename CMap> |
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| 215 | ANodeMap& operator=(const CMap& cmap) { |
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| 216 | Parent::operator=(cmap); |
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| 217 | return *this; |
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| 218 | } |
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| 219 | }; |
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| 220 | |
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| 221 | template <typename _Value> |
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| 222 | class BNodeMap : public Graph::template BNodeMap<_Value> { |
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| 223 | public: |
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| 224 | typedef typename Graph::template BNodeMap<_Value> Parent; |
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| 225 | explicit BNodeMap(const BpUGraphAdaptorBase<Graph>& ga) |
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| 226 | : Parent(*ga.graph) {} |
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| 227 | BNodeMap(const BpUGraphAdaptorBase<Graph>& ga, const _Value& value) |
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| 228 | : Parent(*ga.graph, value) {} |
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| 229 | |
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| 230 | BNodeMap& operator=(const BNodeMap& cmap) { |
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| 231 | return operator=<BNodeMap>(cmap); |
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| 232 | } |
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| 233 | |
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| 234 | template <typename CMap> |
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| 235 | BNodeMap& operator=(const CMap& cmap) { |
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| 236 | Parent::operator=(cmap); |
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| 237 | return *this; |
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| 238 | } |
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| 239 | }; |
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| 240 | |
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| 241 | template <typename _Value> |
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| 242 | class EdgeMap : public Graph::template EdgeMap<_Value> { |
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| 243 | public: |
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| 244 | typedef typename Graph::template EdgeMap<_Value> Parent; |
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| 245 | explicit EdgeMap(const BpUGraphAdaptorBase<Graph>& ga) |
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| 246 | : Parent(*ga.graph) {} |
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| 247 | EdgeMap(const BpUGraphAdaptorBase<Graph>& ga, const _Value& value) |
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| 248 | : Parent(*ga.graph, value) {} |
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| 249 | |
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| 250 | EdgeMap& operator=(const EdgeMap& cmap) { |
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| 251 | return operator=<EdgeMap>(cmap); |
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| 252 | } |
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| 253 | |
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| 254 | template <typename CMap> |
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| 255 | EdgeMap& operator=(const CMap& cmap) { |
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| 256 | Parent::operator=(cmap); |
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| 257 | return *this; |
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| 258 | } |
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| 259 | }; |
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| 260 | |
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| 261 | template <typename _Value> |
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| 262 | class UEdgeMap : public Graph::template UEdgeMap<_Value> { |
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| 263 | public: |
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| 264 | typedef typename Graph::template UEdgeMap<_Value> Parent; |
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| 265 | explicit UEdgeMap(const BpUGraphAdaptorBase<Graph>& ga) |
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| 266 | : Parent(*ga.graph) {} |
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| 267 | UEdgeMap(const BpUGraphAdaptorBase<Graph>& ga, const _Value& value) |
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| 268 | : Parent(*ga.graph, value) {} |
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| 269 | |
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| 270 | UEdgeMap& operator=(const UEdgeMap& cmap) { |
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| 271 | return operator=<UEdgeMap>(cmap); |
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| 272 | } |
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| 273 | |
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| 274 | template <typename CMap> |
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| 275 | UEdgeMap& operator=(const CMap& cmap) { |
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| 276 | Parent::operator=(cmap); |
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| 277 | return *this; |
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| 278 | } |
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| 279 | }; |
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| 280 | |
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| 281 | }; |
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| 282 | |
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| 283 | /// \ingroup graph_adaptors |
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| 284 | template <typename _BpUGraph> |
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| 285 | class BpUGraphAdaptor |
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| 286 | : public BpUGraphAdaptorExtender< BpUGraphAdaptorBase<_BpUGraph> > { |
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| 287 | public: |
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| 288 | typedef _BpUGraph Graph; |
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| 289 | typedef BpUGraphAdaptorExtender<BpUGraphAdaptorBase<_BpUGraph> > Parent; |
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| 290 | protected: |
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| 291 | BpUGraphAdaptor() : Parent() {} |
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| 292 | |
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| 293 | public: |
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| 294 | explicit BpUGraphAdaptor(Graph& _graph) { setGraph(_graph); } |
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| 295 | }; |
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| 296 | |
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| 297 | template <typename _BpUGraph> |
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| 298 | class SwapBpUGraphAdaptorBase : public BpUGraphAdaptorBase<_BpUGraph> { |
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| 299 | public: |
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| 300 | |
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| 301 | typedef _BpUGraph Graph; |
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| 302 | typedef BpUGraphAdaptorBase<_BpUGraph> Parent; |
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| 303 | |
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| 304 | protected: |
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| 305 | |
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| 306 | SwapBpUGraphAdaptorBase() {} |
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| 307 | |
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| 308 | public: |
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| 309 | |
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| 310 | typedef typename Parent::Node Node; |
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| 311 | typedef typename Parent::BNode ANode; |
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| 312 | typedef typename Parent::ANode BNode; |
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| 313 | |
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| 314 | void firstANode(Node& i) const { Parent::firstBNode(i); } |
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| 315 | void firstBNode(Node& i) const { Parent::firstANode(i); } |
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| 316 | |
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| 317 | void nextANode(Node& i) const { Parent::nextBNode(i); } |
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| 318 | void nextBNode(Node& i) const { Parent::nextANode(i); } |
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| 319 | |
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| 320 | int id(const ANode& v) const { return Parent::id(v); } |
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| 321 | int id(const BNode& v) const { return Parent::id(v); } |
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| 322 | |
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| 323 | ANode fromANodeId(int id) const { return Parent::fromBNodeId(id); } |
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| 324 | BNode fromBNodeId(int id) const { return Parent::fromANodeId(id); } |
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| 325 | |
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| 326 | int maxANodeId() const { return Parent::maxBNodeId(); } |
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| 327 | int maxBNodeId() const { return Parent::maxANodeId(); } |
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| 328 | |
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| 329 | int aNodeNum() const { return Parent::bNodeNum(); } |
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| 330 | int bNodeNum() const { return Parent::aNodeNum(); } |
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| 331 | |
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| 332 | typedef typename Parent::BNodeNotifier ANodeNotifier; |
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| 333 | ANodeNotifier& getNotifier(ANode) const { |
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| 334 | return Parent::getNotifier(typename Parent::BNode()); |
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| 335 | } |
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| 336 | |
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| 337 | typedef typename Parent::ANodeNotifier BNodeNotifier; |
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| 338 | BNodeNotifier& getNotifier(BNode) const { |
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| 339 | return Parent::getNotifier(typename Parent::ANode()); |
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| 340 | } |
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| 341 | |
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| 342 | template <typename _Value> |
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| 343 | class ANodeMap : public Graph::template BNodeMap<_Value> { |
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| 344 | public: |
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| 345 | typedef typename Graph::template BNodeMap<_Value> Parent; |
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| 346 | explicit ANodeMap(const SwapBpUGraphAdaptorBase& ga) |
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| 347 | : Parent(*ga.graph) {} |
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| 348 | ANodeMap(const SwapBpUGraphAdaptorBase& ga, const _Value& value) |
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| 349 | : Parent(*ga.graph, value) {} |
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| 350 | |
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| 351 | ANodeMap& operator=(const ANodeMap& cmap) { |
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| 352 | return operator=<ANodeMap>(cmap); |
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| 353 | } |
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| 354 | |
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| 355 | template <typename CMap> |
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| 356 | ANodeMap& operator=(const CMap& cmap) { |
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| 357 | Parent::operator=(cmap); |
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| 358 | return *this; |
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| 359 | } |
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| 360 | }; |
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| 361 | |
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| 362 | template <typename _Value> |
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| 363 | class BNodeMap : public Graph::template ANodeMap<_Value> { |
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| 364 | public: |
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| 365 | typedef typename Graph::template ANodeMap<_Value> Parent; |
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| 366 | explicit BNodeMap(const SwapBpUGraphAdaptorBase<Graph>& ga) |
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| 367 | : Parent(*ga.graph) {} |
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| 368 | BNodeMap(const SwapBpUGraphAdaptorBase<Graph>& ga, const _Value& value) |
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| 369 | : Parent(*ga.graph, value) {} |
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| 370 | |
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| 371 | BNodeMap& operator=(const BNodeMap& cmap) { |
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| 372 | return operator=<BNodeMap>(cmap); |
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| 373 | } |
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| 374 | |
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| 375 | template <typename CMap> |
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| 376 | BNodeMap& operator=(const CMap& cmap) { |
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| 377 | Parent::operator=(cmap); |
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| 378 | return *this; |
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| 379 | } |
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| 380 | }; |
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| 381 | |
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| 382 | }; |
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| 383 | |
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| 384 | /// \ingroup graph_adaptors |
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| 385 | /// |
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| 386 | /// \brief Bipartite graph adaptor which swaps the two nodeset. |
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| 387 | /// |
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| 388 | /// Bipartite graph adaptor which swaps the two nodeset. The adaptor's |
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| 389 | /// a-nodeset will be the original graph's b-nodeset and the adaptor's |
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| 390 | /// b-nodeset will be the original graph's a-nodeset. |
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| 391 | template <typename _BpUGraph> |
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| 392 | class SwapBpUGraphAdaptor |
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| 393 | : public BpUGraphAdaptorExtender<SwapBpUGraphAdaptorBase<_BpUGraph> > { |
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| 394 | public: |
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| 395 | |
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| 396 | typedef _BpUGraph Graph; |
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| 397 | typedef BpUGraphAdaptorExtender<SwapBpUGraphAdaptorBase<_BpUGraph> > |
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| 398 | Parent; |
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| 399 | |
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| 400 | protected: |
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| 401 | SwapBpUGraphAdaptor() : Parent() {} |
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| 402 | |
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| 403 | public: |
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| 404 | |
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| 405 | explicit SwapBpUGraphAdaptor(Graph& _graph) { setGraph(_graph); } |
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| 406 | |
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| 407 | }; |
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| 408 | |
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| 409 | |
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| 410 | } |
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| 411 | |
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| 412 | #endif |
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