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/* -*- C++ -*-
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*
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* This file is a part of LEMON, a generic C++ optimization library
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*
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* Copyright (C) 2003-2008
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* Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
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* (Egervary Research Group on Combinatorial Optimization, EGRES).
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*
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* Permission to use, modify and distribute this software is granted
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* provided that this copyright notice appears in all copies. For
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* precise terms see the accompanying LICENSE file.
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*
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* This software is provided "AS IS" with no warranty of any kind,
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* express or implied, and with no claim as to its suitability for any
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* purpose.
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*
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*/
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#ifndef LEMON_BITS_GRAPH_ADAPTOR_EXTENDER_H
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#define LEMON_BITS_GRAPH_ADAPTOR_EXTENDER_H
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#include <lemon/core.h>
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#include <lemon/error.h>
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#include <lemon/bits/default_map.h>
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///\ingroup digraphbits
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///\file
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///\brief Extenders for the digraph adaptor types
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namespace lemon {
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/// \ingroup digraphbits
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///
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/// \brief Extender for the DigraphAdaptors
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template <typename _Digraph>
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class DigraphAdaptorExtender : public _Digraph {
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public:
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typedef _Digraph Parent;
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typedef _Digraph Digraph;
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typedef DigraphAdaptorExtender Adaptor;
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// Base extensions
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typedef typename Parent::Node Node;
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typedef typename Parent::Arc Arc;
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int maxId(Node) const {
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return Parent::maxNodeId();
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}
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int maxId(Arc) const {
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return Parent::maxArcId();
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}
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Node fromId(int id, Node) const {
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return Parent::nodeFromId(id);
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}
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Arc fromId(int id, Arc) const {
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return Parent::arcFromId(id);
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}
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Node oppositeNode(const Node &n, const Arc &e) const {
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if (n == Parent::source(e))
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return Parent::target(e);
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else if(n==Parent::target(e))
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return Parent::source(e);
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else
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return INVALID;
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}
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class NodeIt : public Node {
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const Adaptor* _adaptor;
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public:
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NodeIt() {}
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NodeIt(Invalid i) : Node(i) { }
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explicit NodeIt(const Adaptor& adaptor) : _adaptor(&adaptor) {
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_adaptor->first(static_cast<Node&>(*this));
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}
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NodeIt(const Adaptor& adaptor, const Node& node)
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: Node(node), _adaptor(&adaptor) {}
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NodeIt& operator++() {
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_adaptor->next(*this);
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return *this;
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}
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};
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class ArcIt : public Arc {
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const Adaptor* _adaptor;
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public:
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ArcIt() { }
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ArcIt(Invalid i) : Arc(i) { }
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explicit ArcIt(const Adaptor& adaptor) : _adaptor(&adaptor) {
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_adaptor->first(static_cast<Arc&>(*this));
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}
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ArcIt(const Adaptor& adaptor, const Arc& e) :
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Arc(e), _adaptor(&adaptor) { }
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ArcIt& operator++() {
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_adaptor->next(*this);
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return *this;
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}
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};
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class OutArcIt : public Arc {
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const Adaptor* _adaptor;
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public:
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OutArcIt() { }
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OutArcIt(Invalid i) : Arc(i) { }
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OutArcIt(const Adaptor& adaptor, const Node& node)
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: _adaptor(&adaptor) {
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_adaptor->firstOut(*this, node);
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}
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OutArcIt(const Adaptor& adaptor, const Arc& arc)
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: Arc(arc), _adaptor(&adaptor) {}
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OutArcIt& operator++() {
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_adaptor->nextOut(*this);
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return *this;
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}
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};
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class InArcIt : public Arc {
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const Adaptor* _adaptor;
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public:
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InArcIt() { }
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InArcIt(Invalid i) : Arc(i) { }
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InArcIt(const Adaptor& adaptor, const Node& node)
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: _adaptor(&adaptor) {
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_adaptor->firstIn(*this, node);
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}
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InArcIt(const Adaptor& adaptor, const Arc& arc) :
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Arc(arc), _adaptor(&adaptor) {}
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InArcIt& operator++() {
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_adaptor->nextIn(*this);
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return *this;
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}
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};
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/// \brief Base node of the iterator
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///
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/// Returns the base node (ie. the source in this case) of the iterator
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Node baseNode(const OutArcIt &e) const {
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return Parent::source(e);
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}
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/// \brief Running node of the iterator
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///
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/// Returns the running node (ie. the target in this case) of the
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/// iterator
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Node runningNode(const OutArcIt &e) const {
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return Parent::target(e);
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}
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/// \brief Base node of the iterator
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///
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/// Returns the base node (ie. the target in this case) of the iterator
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Node baseNode(const InArcIt &e) const {
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return Parent::target(e);
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}
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/// \brief Running node of the iterator
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///
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/// Returns the running node (ie. the source in this case) of the
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/// iterator
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Node runningNode(const InArcIt &e) const {
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return Parent::source(e);
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}
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};
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/// \ingroup digraphbits
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///
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/// \brief Extender for the GraphAdaptors
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template <typename _Graph>
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class GraphAdaptorExtender : public _Graph {
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public:
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typedef _Graph Parent;
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typedef _Graph Graph;
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typedef GraphAdaptorExtender Adaptor;
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typedef typename Parent::Node Node;
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typedef typename Parent::Arc Arc;
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typedef typename Parent::Edge Edge;
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// Graph extension
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int maxId(Node) const {
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return Parent::maxNodeId();
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}
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int maxId(Arc) const {
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return Parent::maxArcId();
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}
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int maxId(Edge) const {
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return Parent::maxEdgeId();
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}
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Node fromId(int id, Node) const {
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return Parent::nodeFromId(id);
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}
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Arc fromId(int id, Arc) const {
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return Parent::arcFromId(id);
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}
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Edge fromId(int id, Edge) const {
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return Parent::edgeFromId(id);
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}
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Node oppositeNode(const Node &n, const Edge &e) const {
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if( n == Parent::u(e))
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return Parent::v(e);
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else if( n == Parent::v(e))
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return Parent::u(e);
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else
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return INVALID;
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}
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Arc oppositeArc(const Arc &a) const {
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return Parent::direct(a, !Parent::direction(a));
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}
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using Parent::direct;
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Arc direct(const Edge &e, const Node &s) const {
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return Parent::direct(e, Parent::u(e) == s);
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}
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class NodeIt : public Node {
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const Adaptor* _adaptor;
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public:
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NodeIt() {}
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NodeIt(Invalid i) : Node(i) { }
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explicit NodeIt(const Adaptor& adaptor) : _adaptor(&adaptor) {
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_adaptor->first(static_cast<Node&>(*this));
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}
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NodeIt(const Adaptor& adaptor, const Node& node)
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: Node(node), _adaptor(&adaptor) {}
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NodeIt& operator++() {
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_adaptor->next(*this);
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return *this;
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}
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};
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class ArcIt : public Arc {
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const Adaptor* _adaptor;
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public:
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ArcIt() { }
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ArcIt(Invalid i) : Arc(i) { }
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explicit ArcIt(const Adaptor& adaptor) : _adaptor(&adaptor) {
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_adaptor->first(static_cast<Arc&>(*this));
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}
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ArcIt(const Adaptor& adaptor, const Arc& e) :
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Arc(e), _adaptor(&adaptor) { }
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ArcIt& operator++() {
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_adaptor->next(*this);
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return *this;
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}
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};
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class OutArcIt : public Arc {
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const Adaptor* _adaptor;
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public:
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OutArcIt() { }
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OutArcIt(Invalid i) : Arc(i) { }
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OutArcIt(const Adaptor& adaptor, const Node& node)
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: _adaptor(&adaptor) {
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_adaptor->firstOut(*this, node);
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}
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OutArcIt(const Adaptor& adaptor, const Arc& arc)
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: Arc(arc), _adaptor(&adaptor) {}
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OutArcIt& operator++() {
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_adaptor->nextOut(*this);
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return *this;
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}
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};
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class InArcIt : public Arc {
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const Adaptor* _adaptor;
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public:
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InArcIt() { }
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InArcIt(Invalid i) : Arc(i) { }
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InArcIt(const Adaptor& adaptor, const Node& node)
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: _adaptor(&adaptor) {
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_adaptor->firstIn(*this, node);
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}
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InArcIt(const Adaptor& adaptor, const Arc& arc) :
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Arc(arc), _adaptor(&adaptor) {}
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InArcIt& operator++() {
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deba@414
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_adaptor->nextIn(*this);
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return *this;
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}
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};
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class EdgeIt : public Parent::Edge {
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const Adaptor* _adaptor;
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public:
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EdgeIt() { }
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deba@414
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356 |
|
deba@414
|
357 |
EdgeIt(Invalid i) : Edge(i) { }
|
deba@414
|
358 |
|
deba@414
|
359 |
explicit EdgeIt(const Adaptor& adaptor) : _adaptor(&adaptor) {
|
deba@414
|
360 |
_adaptor->first(static_cast<Edge&>(*this));
|
deba@414
|
361 |
}
|
deba@414
|
362 |
|
deba@414
|
363 |
EdgeIt(const Adaptor& adaptor, const Edge& e) :
|
deba@414
|
364 |
Edge(e), _adaptor(&adaptor) { }
|
deba@414
|
365 |
|
deba@414
|
366 |
EdgeIt& operator++() {
|
deba@414
|
367 |
_adaptor->next(*this);
|
deba@414
|
368 |
return *this;
|
deba@414
|
369 |
}
|
deba@414
|
370 |
|
deba@414
|
371 |
};
|
deba@414
|
372 |
|
deba@414
|
373 |
class IncEdgeIt : public Edge {
|
deba@414
|
374 |
friend class GraphAdaptorExtender;
|
deba@414
|
375 |
const Adaptor* _adaptor;
|
deba@414
|
376 |
bool direction;
|
deba@414
|
377 |
public:
|
deba@414
|
378 |
|
deba@414
|
379 |
IncEdgeIt() { }
|
deba@414
|
380 |
|
deba@414
|
381 |
IncEdgeIt(Invalid i) : Edge(i), direction(false) { }
|
deba@414
|
382 |
|
deba@414
|
383 |
IncEdgeIt(const Adaptor& adaptor, const Node &n) : _adaptor(&adaptor) {
|
deba@414
|
384 |
_adaptor->firstInc(static_cast<Edge&>(*this), direction, n);
|
deba@414
|
385 |
}
|
deba@414
|
386 |
|
deba@414
|
387 |
IncEdgeIt(const Adaptor& adaptor, const Edge &e, const Node &n)
|
deba@414
|
388 |
: _adaptor(&adaptor), Edge(e) {
|
deba@414
|
389 |
direction = (_adaptor->u(e) == n);
|
deba@414
|
390 |
}
|
deba@414
|
391 |
|
deba@414
|
392 |
IncEdgeIt& operator++() {
|
deba@414
|
393 |
_adaptor->nextInc(*this, direction);
|
deba@414
|
394 |
return *this;
|
deba@414
|
395 |
}
|
deba@414
|
396 |
};
|
deba@414
|
397 |
|
deba@414
|
398 |
/// \brief Base node of the iterator
|
deba@414
|
399 |
///
|
deba@414
|
400 |
/// Returns the base node (ie. the source in this case) of the iterator
|
deba@414
|
401 |
Node baseNode(const OutArcIt &a) const {
|
deba@414
|
402 |
return Parent::source(a);
|
deba@414
|
403 |
}
|
deba@414
|
404 |
/// \brief Running node of the iterator
|
deba@414
|
405 |
///
|
deba@414
|
406 |
/// Returns the running node (ie. the target in this case) of the
|
deba@414
|
407 |
/// iterator
|
deba@414
|
408 |
Node runningNode(const OutArcIt &a) const {
|
deba@414
|
409 |
return Parent::target(a);
|
deba@414
|
410 |
}
|
deba@414
|
411 |
|
deba@414
|
412 |
/// \brief Base node of the iterator
|
deba@414
|
413 |
///
|
deba@414
|
414 |
/// Returns the base node (ie. the target in this case) of the iterator
|
deba@414
|
415 |
Node baseNode(const InArcIt &a) const {
|
deba@414
|
416 |
return Parent::target(a);
|
deba@414
|
417 |
}
|
deba@414
|
418 |
/// \brief Running node of the iterator
|
deba@414
|
419 |
///
|
deba@414
|
420 |
/// Returns the running node (ie. the source in this case) of the
|
deba@414
|
421 |
/// iterator
|
deba@414
|
422 |
Node runningNode(const InArcIt &a) const {
|
deba@414
|
423 |
return Parent::source(a);
|
deba@414
|
424 |
}
|
deba@414
|
425 |
|
deba@414
|
426 |
/// Base node of the iterator
|
deba@414
|
427 |
///
|
deba@414
|
428 |
/// Returns the base node of the iterator
|
deba@414
|
429 |
Node baseNode(const IncEdgeIt &e) const {
|
deba@414
|
430 |
return e.direction ? Parent::u(e) : Parent::v(e);
|
deba@414
|
431 |
}
|
deba@414
|
432 |
/// Running node of the iterator
|
deba@414
|
433 |
///
|
deba@414
|
434 |
/// Returns the running node of the iterator
|
deba@414
|
435 |
Node runningNode(const IncEdgeIt &e) const {
|
deba@414
|
436 |
return e.direction ? Parent::v(e) : Parent::u(e);
|
deba@414
|
437 |
}
|
deba@414
|
438 |
|
deba@414
|
439 |
};
|
deba@414
|
440 |
|
deba@414
|
441 |
}
|
deba@414
|
442 |
|
deba@414
|
443 |
|
deba@414
|
444 |
#endif
|