planargraph/DirectedEdgeStar.h

/**********************************************************************
 *
 * GEOS - Geometry Engine Open Source
 * http://geos.osgeo.org
 *
 * Copyright (C) 2001-2002 Vivid Solutions Inc.
 * Copyright (C) 2005-2006 Refractions Research Inc.
 *
 * This is free software; you can redistribute and/or modify it under
 * the terms of the GNU Lesser General Public Licence as published
 * by the Free Software Foundation. 
 * See the COPYING file for more information.
 *
 **********************************************************************/
 
#ifndef GEOS_PLANARGRAPH_DIRECTEDEDGESTAR_H
#define GEOS_PLANARGRAPH_DIRECTEDEDGESTAR_H
 
#include <geos/export.h>
 
#include <vector>
 
#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable: 4251) // warning C4251: needs to have dll-interface to be used by clients of class
#endif
 
// Forward declarations
namespace geos {
        namespace geom {
                class Coordinate;
        }
        namespace planargraph {
                class DirectedEdge;
                class Edge;
        }
}
 
namespace geos {
namespace planargraph { // geos.planargraph

class GEOS_DLL DirectedEdgeStar {
protected:
 
private:
        mutable std::vector<DirectedEdge*> outEdges;
        mutable bool sorted;
        void sortEdges() const;
 
public:
        DirectedEdgeStar(): sorted(false) {}
 
        virtual ~DirectedEdgeStar() {}

        void add(DirectedEdge *de);

        void remove(DirectedEdge *de);

        std::vector<DirectedEdge*>::iterator iterator() { return begin(); }
        std::vector<DirectedEdge*>::iterator begin();

        std::vector<DirectedEdge*>::iterator end();

        std::vector<DirectedEdge*>::const_iterator begin() const;

        std::vector<DirectedEdge*>::const_iterator end() const;

         std::size_t getDegree() const { return outEdges.size(); }

        geom::Coordinate& getCoordinate() const;

        std::vector<DirectedEdge*>& getEdges();

        int getIndex(const Edge *edge);
  
        int getIndex(const DirectedEdge *dirEdge);

        int getIndex(int i) const;

        DirectedEdge* getNextEdge(DirectedEdge *dirEdge);
};
 
} // namespace geos::planargraph
} // namespace geos
 
#ifdef _MSC_VER
#pragma warning(pop)
#endif
 
#endif // GEOS_PLANARGRAPH_DIRECTEDEDGESTAR_H