PlanarSubgraphModule.h

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/*
 * $Revision: 2299 $
 * 
 * last checkin:
 *   $Author: gutwenger $ 
 *   $Date: 2012-05-07 15:57:08 +0200 (Mon, 07 May 2012) $ 
 ***************************************************************/
 
#ifdef _MSC_VER
#pragma once
#endif

#ifndef OGDF_PLANAR_SUBGRAPH_MODULE_H
#define OGDF_PLANAR_SUBGRAPH_MODULE_H



#include <ogdf/planarity/PlanRepUML.h>
#include <ogdf/basic/Module.h>
#include <ogdf/basic/Logger.h>
#include <ogdf/basic/Timeouter.h>


namespace ogdf {

class OGDF_EXPORT PlanarSubgraphModule : public Module, public Timeouter {
public:
    PlanarSubgraphModule() { }

    // destruction
    virtual ~PlanarSubgraphModule() { }

    ReturnType call(const Graph &G,
        const List<edge> &preferedEdges,
        List<edge> &delEdges,
        bool preferedImplyPlanar = false)
    {
        return doCall(G,preferedEdges,delEdges,0,preferedImplyPlanar);
    }


    ReturnType call(const Graph &G, const EdgeArray<int> &cost, List<edge> &delEdges) {
        List<edge> preferedEdges;
        return doCall(G,preferedEdges,delEdges, &cost);
    }

    ReturnType call(const Graph &G, List<edge> &delEdges) {
        List<edge> preferedEdges;
        return doCall(G,preferedEdges,delEdges);
    }


    ReturnType operator()(const Graph &G,
        const List<edge> &preferedEdges,
        List<edge> &delEdges,
        bool preferedImplyPlanar = false)
    {
        return call(G,preferedEdges,delEdges,preferedImplyPlanar);
    }

    ReturnType operator()(const Graph &G, List<edge> &delEdges) {
        return call(G,delEdges);
    }


    ReturnType callAndDelete(GraphCopy &GC,
        const List<edge> &preferedEdges,
        List<edge> &delOrigEdges,
        bool preferedImplyPlanar = false);

    ReturnType callAndDelete(GraphCopy &GC, List<edge> &delOrigEdges) {
        List<edge> preferedEdges;
        return callAndDelete(GC,preferedEdges,delOrigEdges);
    }

protected:
    // computes set of edges delEdges, which have to be deleted
    // in order to get a planar subgraph; edges in preferedEdges
    // should be contained in planar subgraph
    // must be implemented by derived classes!
    virtual ReturnType doCall(const Graph &G,
        const List<edge> &preferedEdges,
        List<edge> &delEdges,
        const EdgeArray<int>  *pCost = 0,
        bool preferedImplyPlanar = false) = 0;



    OGDF_MALLOC_NEW_DELETE
};

} // end namespace ogdf

#endif