[1979] | 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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[1996] | 19 | #ifndef LEMON_BITS_GRAPH_ADAPTOR_EXTENDER_H |
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| 20 | #define LEMON_BITS_GRAPH_ADAPTOR_EXTENDER_H |
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[1979] | 21 | |
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[1996] | 22 | #include <lemon/bits/invalid.h> |
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| 23 | #include <lemon/error.h> |
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[1979] | 24 | |
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[1996] | 25 | #include <lemon/bits/default_map.h> |
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| 26 | |
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| 27 | |
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| 28 | ///\ingroup graphbits |
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| 29 | ///\file |
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| 30 | ///\brief Extenders for the graph adaptor types |
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[1979] | 31 | namespace lemon { |
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| 32 | |
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[1996] | 33 | /// \ingroup graphbits |
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| 34 | /// |
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| 35 | /// \brief Extender for the GraphAdaptors |
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[2031] | 36 | template <typename _Graph> |
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| 37 | class GraphAdaptorExtender : public _Graph { |
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[1979] | 38 | public: |
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| 39 | |
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[2031] | 40 | typedef _Graph Parent; |
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| 41 | typedef _Graph Graph; |
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| 42 | typedef GraphAdaptorExtender Adaptor; |
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[1979] | 43 | |
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| 44 | // Base extensions |
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| 45 | |
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| 46 | typedef typename Parent::Node Node; |
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| 47 | typedef typename Parent::Edge Edge; |
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| 48 | |
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| 49 | int maxId(Node) const { |
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| 50 | return Parent::maxNodeId(); |
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| 51 | } |
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| 52 | |
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| 53 | int maxId(Edge) const { |
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| 54 | return Parent::maxEdgeId(); |
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| 55 | } |
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| 56 | |
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| 57 | Node fromId(int id, Node) const { |
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| 58 | return Parent::nodeFromId(id); |
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| 59 | } |
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| 60 | |
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| 61 | Edge fromId(int id, Edge) const { |
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| 62 | return Parent::edgeFromId(id); |
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| 63 | } |
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| 64 | |
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| 65 | Node oppositeNode(const Node &n, const Edge &e) const { |
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| 66 | if (n == Parent::source(e)) |
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| 67 | return Parent::target(e); |
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| 68 | else if(n==Parent::target(e)) |
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| 69 | return Parent::source(e); |
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| 70 | else |
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| 71 | return INVALID; |
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| 72 | } |
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| 73 | |
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| 74 | class NodeIt : public Node { |
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[2031] | 75 | const Adaptor* graph; |
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[1979] | 76 | public: |
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| 77 | |
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| 78 | NodeIt() {} |
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| 79 | |
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| 80 | NodeIt(Invalid i) : Node(i) { } |
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| 81 | |
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[2031] | 82 | explicit NodeIt(const Adaptor& _graph) : graph(&_graph) { |
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| 83 | _graph.first(static_cast<Node&>(*this)); |
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[1979] | 84 | } |
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| 85 | |
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[2031] | 86 | NodeIt(const Adaptor& _graph, const Node& node) |
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[1979] | 87 | : Node(node), graph(&_graph) {} |
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| 88 | |
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| 89 | NodeIt& operator++() { |
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| 90 | graph->next(*this); |
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| 91 | return *this; |
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| 92 | } |
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| 93 | |
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| 94 | }; |
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| 95 | |
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| 96 | |
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| 97 | class EdgeIt : public Edge { |
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[2031] | 98 | const Adaptor* graph; |
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[1979] | 99 | public: |
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| 100 | |
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| 101 | EdgeIt() { } |
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| 102 | |
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| 103 | EdgeIt(Invalid i) : Edge(i) { } |
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| 104 | |
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[2031] | 105 | explicit EdgeIt(const Adaptor& _graph) : graph(&_graph) { |
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| 106 | _graph.first(static_cast<Edge&>(*this)); |
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[1979] | 107 | } |
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| 108 | |
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[2031] | 109 | EdgeIt(const Adaptor& _graph, const Edge& e) : |
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[1979] | 110 | Edge(e), graph(&_graph) { } |
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| 111 | |
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| 112 | EdgeIt& operator++() { |
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| 113 | graph->next(*this); |
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| 114 | return *this; |
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| 115 | } |
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| 116 | |
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| 117 | }; |
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| 118 | |
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| 119 | |
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| 120 | class OutEdgeIt : public Edge { |
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[2031] | 121 | const Adaptor* graph; |
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[1979] | 122 | public: |
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| 123 | |
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| 124 | OutEdgeIt() { } |
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| 125 | |
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| 126 | OutEdgeIt(Invalid i) : Edge(i) { } |
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| 127 | |
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[2031] | 128 | OutEdgeIt(const Adaptor& _graph, const Node& node) |
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[1979] | 129 | : graph(&_graph) { |
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| 130 | _graph.firstOut(*this, node); |
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| 131 | } |
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| 132 | |
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[2031] | 133 | OutEdgeIt(const Adaptor& _graph, const Edge& edge) |
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[1979] | 134 | : Edge(edge), graph(&_graph) {} |
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| 135 | |
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| 136 | OutEdgeIt& operator++() { |
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| 137 | graph->nextOut(*this); |
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| 138 | return *this; |
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| 139 | } |
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| 140 | |
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| 141 | }; |
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| 142 | |
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| 143 | |
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| 144 | class InEdgeIt : public Edge { |
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[2031] | 145 | const Adaptor* graph; |
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[1979] | 146 | public: |
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| 147 | |
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| 148 | InEdgeIt() { } |
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| 149 | |
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| 150 | InEdgeIt(Invalid i) : Edge(i) { } |
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| 151 | |
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[2031] | 152 | InEdgeIt(const Adaptor& _graph, const Node& node) |
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[1979] | 153 | : graph(&_graph) { |
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| 154 | _graph.firstIn(*this, node); |
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| 155 | } |
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| 156 | |
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[2031] | 157 | InEdgeIt(const Adaptor& _graph, const Edge& edge) : |
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[1979] | 158 | Edge(edge), graph(&_graph) {} |
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| 159 | |
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| 160 | InEdgeIt& operator++() { |
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| 161 | graph->nextIn(*this); |
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| 162 | return *this; |
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| 163 | } |
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| 164 | |
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| 165 | }; |
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| 166 | |
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| 167 | /// \brief Base node of the iterator |
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| 168 | /// |
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| 169 | /// Returns the base node (ie. the source in this case) of the iterator |
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| 170 | Node baseNode(const OutEdgeIt &e) const { |
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| 171 | return Parent::source(e); |
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| 172 | } |
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| 173 | /// \brief Running node of the iterator |
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| 174 | /// |
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| 175 | /// Returns the running node (ie. the target in this case) of the |
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| 176 | /// iterator |
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| 177 | Node runningNode(const OutEdgeIt &e) const { |
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| 178 | return Parent::target(e); |
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| 179 | } |
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| 180 | |
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| 181 | /// \brief Base node of the iterator |
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| 182 | /// |
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| 183 | /// Returns the base node (ie. the target in this case) of the iterator |
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| 184 | Node baseNode(const InEdgeIt &e) const { |
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| 185 | return Parent::target(e); |
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| 186 | } |
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| 187 | /// \brief Running node of the iterator |
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| 188 | /// |
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| 189 | /// Returns the running node (ie. the source in this case) of the |
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| 190 | /// iterator |
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| 191 | Node runningNode(const InEdgeIt &e) const { |
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| 192 | return Parent::source(e); |
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| 193 | } |
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| 194 | |
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| 195 | }; |
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| 196 | |
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| 197 | |
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[1996] | 198 | /// \ingroup graphbits |
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| 199 | /// |
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| 200 | /// \brief Extender for the UGraphAdaptors |
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[2031] | 201 | template <typename _UGraph> |
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| 202 | class UGraphAdaptorExtender : public _UGraph { |
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[1979] | 203 | public: |
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| 204 | |
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[2031] | 205 | typedef _UGraph Parent; |
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| 206 | typedef _UGraph UGraph; |
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| 207 | typedef UGraphAdaptorExtender Adaptor; |
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[1979] | 208 | |
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| 209 | typedef typename Parent::Node Node; |
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| 210 | typedef typename Parent::Edge Edge; |
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| 211 | typedef typename Parent::UEdge UEdge; |
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| 212 | |
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| 213 | // UGraph extension |
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| 214 | |
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| 215 | int maxId(Node) const { |
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| 216 | return Parent::maxNodeId(); |
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| 217 | } |
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| 218 | |
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| 219 | int maxId(Edge) const { |
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| 220 | return Parent::maxEdgeId(); |
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| 221 | } |
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| 222 | |
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| 223 | int maxId(UEdge) const { |
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| 224 | return Parent::maxUEdgeId(); |
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| 225 | } |
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| 226 | |
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| 227 | Node fromId(int id, Node) const { |
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| 228 | return Parent::nodeFromId(id); |
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| 229 | } |
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| 230 | |
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| 231 | Edge fromId(int id, Edge) const { |
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| 232 | return Parent::edgeFromId(id); |
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| 233 | } |
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| 234 | |
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| 235 | UEdge fromId(int id, UEdge) const { |
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| 236 | return Parent::uEdgeFromId(id); |
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| 237 | } |
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| 238 | |
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| 239 | Node oppositeNode(const Node &n, const UEdge &e) const { |
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| 240 | if( n == Parent::source(e)) |
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| 241 | return Parent::target(e); |
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| 242 | else if( n == Parent::target(e)) |
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| 243 | return Parent::source(e); |
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| 244 | else |
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| 245 | return INVALID; |
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| 246 | } |
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| 247 | |
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| 248 | Edge oppositeEdge(const Edge &e) const { |
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| 249 | return Parent::direct(e, !Parent::direction(e)); |
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| 250 | } |
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| 251 | |
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| 252 | using Parent::direct; |
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| 253 | Edge direct(const UEdge &ue, const Node &s) const { |
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| 254 | return Parent::direct(ue, Parent::source(ue) == s); |
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| 255 | } |
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| 256 | |
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| 257 | |
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| 258 | class NodeIt : public Node { |
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[2031] | 259 | const Adaptor* graph; |
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[1979] | 260 | public: |
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| 261 | |
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| 262 | NodeIt() {} |
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| 263 | |
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| 264 | NodeIt(Invalid i) : Node(i) { } |
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| 265 | |
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[2031] | 266 | explicit NodeIt(const Adaptor& _graph) : graph(&_graph) { |
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| 267 | _graph.first(static_cast<Node&>(*this)); |
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[1979] | 268 | } |
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| 269 | |
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[2031] | 270 | NodeIt(const Adaptor& _graph, const Node& node) |
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[1979] | 271 | : Node(node), graph(&_graph) {} |
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| 272 | |
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| 273 | NodeIt& operator++() { |
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| 274 | graph->next(*this); |
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| 275 | return *this; |
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| 276 | } |
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| 277 | |
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| 278 | }; |
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| 279 | |
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| 280 | |
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| 281 | class EdgeIt : public Edge { |
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[2031] | 282 | const Adaptor* graph; |
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[1979] | 283 | public: |
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| 284 | |
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| 285 | EdgeIt() { } |
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| 286 | |
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| 287 | EdgeIt(Invalid i) : Edge(i) { } |
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| 288 | |
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[2031] | 289 | explicit EdgeIt(const Adaptor& _graph) : graph(&_graph) { |
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| 290 | _graph.first(static_cast<Edge&>(*this)); |
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[1979] | 291 | } |
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| 292 | |
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[2031] | 293 | EdgeIt(const Adaptor& _graph, const Edge& e) : |
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[1979] | 294 | Edge(e), graph(&_graph) { } |
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| 295 | |
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| 296 | EdgeIt& operator++() { |
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| 297 | graph->next(*this); |
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| 298 | return *this; |
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| 299 | } |
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| 300 | |
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| 301 | }; |
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| 302 | |
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| 303 | |
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| 304 | class OutEdgeIt : public Edge { |
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[2031] | 305 | const Adaptor* graph; |
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[1979] | 306 | public: |
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| 307 | |
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| 308 | OutEdgeIt() { } |
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| 309 | |
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| 310 | OutEdgeIt(Invalid i) : Edge(i) { } |
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| 311 | |
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[2031] | 312 | OutEdgeIt(const Adaptor& _graph, const Node& node) |
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[1979] | 313 | : graph(&_graph) { |
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| 314 | _graph.firstOut(*this, node); |
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| 315 | } |
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| 316 | |
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[2031] | 317 | OutEdgeIt(const Adaptor& _graph, const Edge& edge) |
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[1979] | 318 | : Edge(edge), graph(&_graph) {} |
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| 319 | |
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| 320 | OutEdgeIt& operator++() { |
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| 321 | graph->nextOut(*this); |
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| 322 | return *this; |
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| 323 | } |
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| 324 | |
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| 325 | }; |
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| 326 | |
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| 327 | |
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| 328 | class InEdgeIt : public Edge { |
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[2031] | 329 | const Adaptor* graph; |
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[1979] | 330 | public: |
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| 331 | |
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| 332 | InEdgeIt() { } |
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| 333 | |
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| 334 | InEdgeIt(Invalid i) : Edge(i) { } |
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| 335 | |
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[2031] | 336 | InEdgeIt(const Adaptor& _graph, const Node& node) |
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[1979] | 337 | : graph(&_graph) { |
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| 338 | _graph.firstIn(*this, node); |
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| 339 | } |
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| 340 | |
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[2031] | 341 | InEdgeIt(const Adaptor& _graph, const Edge& edge) : |
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[1979] | 342 | Edge(edge), graph(&_graph) {} |
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| 343 | |
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| 344 | InEdgeIt& operator++() { |
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| 345 | graph->nextIn(*this); |
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| 346 | return *this; |
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| 347 | } |
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| 348 | |
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| 349 | }; |
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| 350 | |
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| 351 | class UEdgeIt : public Parent::UEdge { |
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[2031] | 352 | const Adaptor* graph; |
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[1979] | 353 | public: |
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| 354 | |
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| 355 | UEdgeIt() { } |
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| 356 | |
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| 357 | UEdgeIt(Invalid i) : UEdge(i) { } |
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| 358 | |
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[2031] | 359 | explicit UEdgeIt(const Adaptor& _graph) : graph(&_graph) { |
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| 360 | _graph.first(static_cast<UEdge&>(*this)); |
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[1979] | 361 | } |
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| 362 | |
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[2031] | 363 | UEdgeIt(const Adaptor& _graph, const UEdge& e) : |
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[1979] | 364 | UEdge(e), graph(&_graph) { } |
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| 365 | |
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| 366 | UEdgeIt& operator++() { |
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| 367 | graph->next(*this); |
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| 368 | return *this; |
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| 369 | } |
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| 370 | |
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| 371 | }; |
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| 372 | |
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| 373 | class IncEdgeIt : public Parent::UEdge { |
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| 374 | friend class UGraphAdaptorExtender; |
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[2031] | 375 | const Adaptor* graph; |
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[1979] | 376 | bool direction; |
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| 377 | public: |
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| 378 | |
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| 379 | IncEdgeIt() { } |
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| 380 | |
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| 381 | IncEdgeIt(Invalid i) : UEdge(i), direction(false) { } |
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| 382 | |
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[2031] | 383 | IncEdgeIt(const Adaptor& _graph, const Node &n) : graph(&_graph) { |
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[1979] | 384 | _graph.firstInc(static_cast<UEdge&>(*this), direction, n); |
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| 385 | } |
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| 386 | |
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[2031] | 387 | IncEdgeIt(const Adaptor& _graph, const UEdge &ue, const Node &n) |
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[1979] | 388 | : graph(&_graph), UEdge(ue) { |
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| 389 | direction = (_graph.source(ue) == n); |
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| 390 | } |
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| 391 | |
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| 392 | IncEdgeIt& operator++() { |
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| 393 | graph->nextInc(*this, direction); |
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| 394 | return *this; |
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| 395 | } |
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| 396 | }; |
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| 397 | |
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| 398 | /// \brief Base node of the iterator |
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| 399 | /// |
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| 400 | /// Returns the base node (ie. the source in this case) of the iterator |
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| 401 | Node baseNode(const OutEdgeIt &e) const { |
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| 402 | return Parent::source((Edge)e); |
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| 403 | } |
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| 404 | /// \brief Running node of the iterator |
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| 405 | /// |
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| 406 | /// Returns the running node (ie. the target in this case) of the |
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| 407 | /// iterator |
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| 408 | Node runningNode(const OutEdgeIt &e) const { |
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| 409 | return Parent::target((Edge)e); |
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| 410 | } |
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| 411 | |
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| 412 | /// \brief Base node of the iterator |
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| 413 | /// |
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| 414 | /// Returns the base node (ie. the target in this case) of the iterator |
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| 415 | Node baseNode(const InEdgeIt &e) const { |
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| 416 | return Parent::target((Edge)e); |
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| 417 | } |
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| 418 | /// \brief Running node of the iterator |
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| 419 | /// |
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| 420 | /// Returns the running node (ie. the source in this case) of the |
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| 421 | /// iterator |
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| 422 | Node runningNode(const InEdgeIt &e) const { |
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| 423 | return Parent::source((Edge)e); |
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| 424 | } |
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| 425 | |
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| 426 | /// Base node of the iterator |
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| 427 | /// |
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| 428 | /// Returns the base node of the iterator |
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| 429 | Node baseNode(const IncEdgeIt &e) const { |
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| 430 | return e.direction ? source(e) : target(e); |
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| 431 | } |
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| 432 | /// Running node of the iterator |
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| 433 | /// |
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| 434 | /// Returns the running node of the iterator |
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| 435 | Node runningNode(const IncEdgeIt &e) const { |
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| 436 | return e.direction ? target(e) : source(e); |
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| 437 | } |
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| 438 | |
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| 439 | }; |
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| 440 | |
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[2031] | 441 | /// \ingroup graphbits |
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| 442 | /// |
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| 443 | /// \brief Extender for the BpUGraphAdaptors |
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| 444 | template <typename Base> |
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| 445 | class BpUGraphAdaptorExtender : public Base { |
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| 446 | public: |
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| 447 | typedef Base Parent; |
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| 448 | typedef BpUGraphAdaptorExtender Graph; |
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| 449 | |
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| 450 | typedef typename Parent::Node Node; |
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| 451 | typedef typename Parent::BNode BNode; |
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| 452 | typedef typename Parent::ANode ANode; |
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| 453 | typedef typename Parent::Edge Edge; |
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| 454 | typedef typename Parent::UEdge UEdge; |
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| 455 | |
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| 456 | Node oppositeNode(const UEdge& edge, const Node& node) const { |
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| 457 | return source(edge) == node ? |
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| 458 | target(edge) : source(edge); |
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| 459 | } |
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| 460 | |
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| 461 | |
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| 462 | int maxId(Node) const { |
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| 463 | return Parent::maxNodeId(); |
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| 464 | } |
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| 465 | int maxId(BNode) const { |
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| 466 | return Parent::maxBNodeId(); |
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| 467 | } |
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| 468 | int maxId(ANode) const { |
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| 469 | return Parent::maxANodeId(); |
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| 470 | } |
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| 471 | int maxId(Edge) const { |
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| 472 | return Parent::maxEdgeId(); |
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| 473 | } |
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| 474 | int maxId(UEdge) const { |
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| 475 | return Parent::maxUEdgeId(); |
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| 476 | } |
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| 477 | |
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| 478 | |
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| 479 | Node fromId(int id, Node) const { |
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| 480 | return Parent::nodeFromId(id); |
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| 481 | } |
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| 482 | ANode fromId(int id, ANode) const { |
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| 483 | return Parent::fromANodeId(id); |
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| 484 | } |
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| 485 | BNode fromId(int id, BNode) const { |
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| 486 | return Parent::fromBNodeId(id); |
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| 487 | } |
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| 488 | Edge fromId(int id, Edge) const { |
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| 489 | return Parent::edgeFromId(id); |
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| 490 | } |
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| 491 | UEdge fromId(int id, UEdge) const { |
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| 492 | return Parent::uEdgeFromId(id); |
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| 493 | } |
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| 494 | |
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| 495 | class NodeIt : public Node { |
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| 496 | const Graph* graph; |
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| 497 | public: |
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| 498 | |
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| 499 | NodeIt() { } |
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| 500 | |
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| 501 | NodeIt(Invalid i) : Node(INVALID) { } |
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| 502 | |
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| 503 | explicit NodeIt(const Graph& _graph) : graph(&_graph) { |
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| 504 | graph->first(static_cast<Node&>(*this)); |
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| 505 | } |
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| 506 | |
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| 507 | NodeIt(const Graph& _graph, const Node& node) |
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| 508 | : Node(node), graph(&_graph) { } |
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| 509 | |
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| 510 | NodeIt& operator++() { |
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| 511 | graph->next(*this); |
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| 512 | return *this; |
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| 513 | } |
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| 514 | |
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| 515 | }; |
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| 516 | |
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| 517 | class ANodeIt : public Node { |
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| 518 | friend class BpUGraphAdaptorExtender; |
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| 519 | const Graph* graph; |
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| 520 | public: |
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| 521 | |
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| 522 | ANodeIt() { } |
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| 523 | |
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| 524 | ANodeIt(Invalid i) : Node(INVALID) { } |
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| 525 | |
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| 526 | explicit ANodeIt(const Graph& _graph) : graph(&_graph) { |
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| 527 | graph->firstANode(static_cast<Node&>(*this)); |
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| 528 | } |
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| 529 | |
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| 530 | ANodeIt(const Graph& _graph, const Node& node) |
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| 531 | : Node(node), graph(&_graph) {} |
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| 532 | |
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| 533 | ANodeIt& operator++() { |
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| 534 | graph->nextANode(*this); |
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| 535 | return *this; |
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| 536 | } |
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| 537 | }; |
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| 538 | |
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| 539 | class BNodeIt : public Node { |
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| 540 | friend class BpUGraphAdaptorExtender; |
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| 541 | const Graph* graph; |
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| 542 | public: |
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| 543 | |
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| 544 | BNodeIt() { } |
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| 545 | |
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| 546 | BNodeIt(Invalid i) : Node(INVALID) { } |
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| 547 | |
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| 548 | explicit BNodeIt(const Graph& _graph) : graph(&_graph) { |
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| 549 | graph->firstBNode(static_cast<Node&>(*this)); |
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| 550 | } |
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| 551 | |
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| 552 | BNodeIt(const Graph& _graph, const Node& node) |
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| 553 | : Node(node), graph(&_graph) {} |
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| 554 | |
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| 555 | BNodeIt& operator++() { |
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| 556 | graph->nextBNode(*this); |
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| 557 | return *this; |
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| 558 | } |
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| 559 | }; |
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| 560 | |
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| 561 | class EdgeIt : public Edge { |
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| 562 | friend class BpUGraphAdaptorExtender; |
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| 563 | const Graph* graph; |
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| 564 | public: |
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| 565 | |
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| 566 | EdgeIt() { } |
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| 567 | |
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| 568 | EdgeIt(Invalid i) : Edge(INVALID) { } |
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| 569 | |
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| 570 | explicit EdgeIt(const Graph& _graph) : graph(&_graph) { |
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| 571 | graph->first(static_cast<Edge&>(*this)); |
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| 572 | } |
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| 573 | |
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| 574 | EdgeIt(const Graph& _graph, const Edge& edge) |
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| 575 | : Edge(edge), graph(&_graph) { } |
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| 576 | |
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| 577 | EdgeIt& operator++() { |
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| 578 | graph->next(*this); |
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| 579 | return *this; |
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| 580 | } |
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| 581 | |
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| 582 | }; |
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| 583 | |
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| 584 | class UEdgeIt : public UEdge { |
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| 585 | friend class BpUGraphAdaptorExtender; |
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| 586 | const Graph* graph; |
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| 587 | public: |
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| 588 | |
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| 589 | UEdgeIt() { } |
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| 590 | |
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| 591 | UEdgeIt(Invalid i) : UEdge(INVALID) { } |
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| 592 | |
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| 593 | explicit UEdgeIt(const Graph& _graph) : graph(&_graph) { |
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| 594 | graph->first(static_cast<UEdge&>(*this)); |
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| 595 | } |
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| 596 | |
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| 597 | UEdgeIt(const Graph& _graph, const UEdge& edge) |
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| 598 | : UEdge(edge), graph(&_graph) { } |
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| 599 | |
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| 600 | UEdgeIt& operator++() { |
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| 601 | graph->next(*this); |
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| 602 | return *this; |
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| 603 | } |
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| 604 | }; |
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| 605 | |
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| 606 | class OutEdgeIt : public Edge { |
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| 607 | friend class BpUGraphAdaptorExtender; |
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| 608 | const Graph* graph; |
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| 609 | public: |
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| 610 | |
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| 611 | OutEdgeIt() { } |
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| 612 | |
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| 613 | OutEdgeIt(Invalid i) : Edge(i) { } |
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| 614 | |
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| 615 | OutEdgeIt(const Graph& _graph, const Node& node) |
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| 616 | : graph(&_graph) { |
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| 617 | graph->firstOut(*this, node); |
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| 618 | } |
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| 619 | |
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| 620 | OutEdgeIt(const Graph& _graph, const Edge& edge) |
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| 621 | : Edge(edge), graph(&_graph) {} |
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| 622 | |
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| 623 | OutEdgeIt& operator++() { |
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| 624 | graph->nextOut(*this); |
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| 625 | return *this; |
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| 626 | } |
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| 627 | |
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| 628 | }; |
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| 629 | |
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| 630 | |
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| 631 | class InEdgeIt : public Edge { |
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| 632 | friend class BpUGraphAdaptorExtender; |
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| 633 | const Graph* graph; |
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| 634 | public: |
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| 635 | |
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| 636 | InEdgeIt() { } |
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| 637 | |
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| 638 | InEdgeIt(Invalid i) : Edge(i) { } |
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| 639 | |
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| 640 | InEdgeIt(const Graph& _graph, const Node& node) |
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| 641 | : graph(&_graph) { |
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| 642 | graph->firstIn(*this, node); |
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| 643 | } |
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| 644 | |
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| 645 | InEdgeIt(const Graph& _graph, const Edge& edge) : |
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| 646 | Edge(edge), graph(&_graph) {} |
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| 647 | |
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| 648 | InEdgeIt& operator++() { |
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| 649 | graph->nextIn(*this); |
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| 650 | return *this; |
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| 651 | } |
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| 652 | |
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| 653 | }; |
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| 654 | |
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| 655 | /// \brief Base node of the iterator |
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| 656 | /// |
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| 657 | /// Returns the base node (ie. the source in this case) of the iterator |
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| 658 | Node baseNode(const OutEdgeIt &e) const { |
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| 659 | return Parent::source((Edge&)e); |
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| 660 | } |
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| 661 | /// \brief Running node of the iterator |
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| 662 | /// |
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| 663 | /// Returns the running node (ie. the target in this case) of the |
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| 664 | /// iterator |
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| 665 | Node runningNode(const OutEdgeIt &e) const { |
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| 666 | return Parent::target((Edge&)e); |
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| 667 | } |
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| 668 | |
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| 669 | /// \brief Base node of the iterator |
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| 670 | /// |
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| 671 | /// Returns the base node (ie. the target in this case) of the iterator |
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| 672 | Node baseNode(const InEdgeIt &e) const { |
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| 673 | return Parent::target((Edge&)e); |
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| 674 | } |
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| 675 | /// \brief Running node of the iterator |
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| 676 | /// |
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| 677 | /// Returns the running node (ie. the source in this case) of the |
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| 678 | /// iterator |
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| 679 | Node runningNode(const InEdgeIt &e) const { |
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| 680 | return Parent::source((Edge&)e); |
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| 681 | } |
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| 682 | |
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| 683 | class IncEdgeIt : public Parent::UEdge { |
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| 684 | friend class BpUGraphAdaptorExtender; |
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| 685 | const Graph* graph; |
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| 686 | bool direction; |
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| 687 | public: |
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| 688 | |
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| 689 | IncEdgeIt() { } |
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| 690 | |
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| 691 | IncEdgeIt(Invalid i) : UEdge(i), direction(true) { } |
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| 692 | |
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| 693 | IncEdgeIt(const Graph& _graph, const Node &n) : graph(&_graph) { |
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| 694 | graph->firstInc(*this, direction, n); |
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| 695 | } |
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| 696 | |
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| 697 | IncEdgeIt(const Graph& _graph, const UEdge &ue, const Node &n) |
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| 698 | : graph(&_graph), UEdge(ue) { |
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| 699 | direction = (graph->source(ue) == n); |
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| 700 | } |
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| 701 | |
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| 702 | IncEdgeIt& operator++() { |
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| 703 | graph->nextInc(*this, direction); |
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| 704 | return *this; |
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| 705 | } |
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| 706 | }; |
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| 707 | |
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| 708 | |
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| 709 | /// Base node of the iterator |
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| 710 | /// |
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| 711 | /// Returns the base node of the iterator |
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| 712 | Node baseNode(const IncEdgeIt &e) const { |
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| 713 | return e.direction ? source(e) : target(e); |
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| 714 | } |
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| 715 | |
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| 716 | /// Running node of the iterator |
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| 717 | /// |
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| 718 | /// Returns the running node of the iterator |
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| 719 | Node runningNode(const IncEdgeIt &e) const { |
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| 720 | return e.direction ? target(e) : source(e); |
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| 721 | } |
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| 722 | |
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[2041] | 723 | Node oppositeNode(const Node &n, const UEdge &e) const { |
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| 724 | if( n == Parent::source(e)) |
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| 725 | return Parent::target(e); |
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| 726 | else if( n == Parent::target(e)) |
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| 727 | return Parent::source(e); |
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| 728 | else |
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| 729 | return INVALID; |
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| 730 | } |
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| 731 | |
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| 732 | Edge oppositeEdge(const Edge &e) const { |
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| 733 | return Parent::direct(e, !Parent::direction(e)); |
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| 734 | } |
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| 735 | |
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| 736 | using Parent::direct; |
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| 737 | Edge direct(const UEdge &ue, const Node &s) const { |
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| 738 | return Parent::direct(ue, Parent::source(ue) == s); |
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| 739 | } |
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| 740 | |
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[2031] | 741 | }; |
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| 742 | |
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[1979] | 743 | |
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| 744 | } |
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| 745 | |
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| 746 | |
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| 747 | #endif |
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