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/*
* $Revision: 2523 $
*
* last checkin:
* $Author: gutwenger $
* $Date: 2012-07-02 20:59:27 +0200 (Mon, 02 Jul 2012) $
***************************************************************/
/** \file
* \brief Declaration of interface for upward planar subgraph
* algorithms.
*
* \author Carsten Gutwenger
*
* \par License:
* This file is part of the Open Graph Drawing Framework (OGDF).
*
* \par
* Copyright (C)<br>
* See README.txt in the root directory of the OGDF installation for details.
*
* \par
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* Version 2 or 3 as published by the Free Software Foundation;
* see the file LICENSE.txt included in the packaging of this file
* for details.
*
* \par
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* \par
* You should have received a copy of the GNU General Public
* License along with this program; if not, write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
* \see http://www.gnu.org/copyleft/gpl.html
***************************************************************/
#ifdef _MSC_VER
#pragma once
#endif
#ifndef OGDF_UPWARD_PLANAR_SUBGRAPH_MODULE_H
#define OGDF_UPWARD_PLANAR_SUBGRAPH_MODULE_H
#include <ogdf/basic/GraphCopy.h>
namespace ogdf {
/**
* \brief Interface for algorithms for computing an upward planar subgraph.
*/
class OGDF_EXPORT UpwardPlanarSubgraphModule {
public:
//! Initializes an upward planar subgraph module.
UpwardPlanarSubgraphModule() { }
// destruction
virtual ~UpwardPlanarSubgraphModule() { }
/**
* \brief Computes set of edges \a delEdges which have to be deleted to obtain the upward planar subgraph.
*
* Must be implemented by derived classes.
* @param G is the input graph.
* @param delEdges is assigned the set of edges which have to be deleted in \a G
* to obtain the upward planar subgraph.
*/
virtual void call(const Graph &G, List<edge> &delEdges) = 0;
//! Computes set of edges \a delEdges which have to be deleted to obtain the upward planar subgraph.
void operator()(const Graph &G, List<edge> &delEdges) {
call(G,delEdges);
}
/**
* \brief Makes \a GC upward planar by deleting edges.
* @param GC is a copy of the input graph.
* @param delOrigEdges is the set of original edges whose copies have been
* deleted in \a GC.
*/
void callAndDelete(GraphCopy &GC, List<edge> &delOrigEdges);
OGDF_MALLOC_NEW_DELETE
}; // class UpwardPlanarSubgraph
} // end namespace ogdf
#endif
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