ClusterPQContainer.h

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#pragma once
 
#include <ogdf/basic/EdgeArray.h>
#include <ogdf/basic/NodeArray.h>
#include <ogdf/planarity/booth_lueker/EmbedPQTree.h>
 
namespace ogdf {
 
class CconnectClusterPlanarEmbed;
 
namespace cluster_planarity {
 
class ClusterPQContainer {
    friend class ogdf::CconnectClusterPlanarEmbed;
    using InfoLeafPtr = booth_lueker::PlanarLeafKey<booth_lueker::IndInfo*>*;
 
    // Definition
    // incoming edge of v: an edge e = (v,w) with number(v) < number(w)
 
    // Stores for every node v the keys corresponding to the incoming edges of v
    NodeArray<SListPure<InfoLeafPtr>>* m_inLeaves;
 
    // Stores for every node v the keys corresponding to the outgoing edges of v
    NodeArray<SListPure<InfoLeafPtr>>* m_outLeaves;
 
    // Stores for every node v the sequence of incoming edges of v according
    // to the embedding
    NodeArray<SListPure<edge>>* m_frontier;
 
    // Stores for every node v the nodes corresponding to the
    // opposed sink indicators found in the frontier of v.
    NodeArray<SListPure<node>>* m_opposed;
 
    // Stores for every node v the nodes corresponding to the
    // non opposed sink indicators found in the frontier of v.
    NodeArray<SListPure<node>>* m_nonOpposed;
 
    // Table to acces for every edge its corresponding key in the PQTree
    EdgeArray<InfoLeafPtr>* m_edge2Key;
 
    // Stores for every node its st-number
    NodeArray<int>* m_numbering;
 
    // Stores for every st-number the node
    Array<node>* m_tableNumber2Node;
 
    node m_superSink;
 
    // the subgraph that contains the biconnected component
    // NOT THE COPY OF THE BICONNECTED COMPONENT THAT WAS CONSTRUCTED
    // DURING PLANARITY TESTING. THIS HAS BEEN DELETED.
    Graph* m_subGraph;
    // corresponding PQTree
    booth_lueker::EmbedPQTree* m_T;
    // The leaf correpsonding to the edge (s,t).
    InfoLeafPtr m_stEdgeLeaf;
 
public:
    ClusterPQContainer()
        : m_inLeaves(nullptr)
        , m_outLeaves(nullptr)
        , m_frontier(nullptr)
        , m_opposed(nullptr)
        , m_nonOpposed(nullptr)
        , m_edge2Key(nullptr)
        , m_numbering(nullptr)
        , m_tableNumber2Node(nullptr)
        , m_superSink(nullptr)
        , m_subGraph(nullptr)
        , m_T(nullptr)
        , m_stEdgeLeaf(nullptr) { }
 
    ~ClusterPQContainer() { }
 
    void init(Graph* subGraph) {
        m_subGraph = subGraph;
        m_inLeaves = new NodeArray<SListPure<InfoLeafPtr>>(*subGraph);
 
        m_outLeaves = new NodeArray<SListPure<InfoLeafPtr>>(*subGraph);
 
        m_frontier = new NodeArray<SListPure<edge>>(*subGraph);
 
        m_opposed = new NodeArray<SListPure<node>>(*subGraph);
 
        m_nonOpposed = new NodeArray<SListPure<node>>(*subGraph);
 
        m_edge2Key = new EdgeArray<InfoLeafPtr>(*subGraph);
 
        m_numbering = new NodeArray<int>(*subGraph);
 
        m_tableNumber2Node = new Array<node>(subGraph->numberOfNodes() + 1);
    }
 
    void Cleanup() {
        delete m_inLeaves;
        if (m_outLeaves) {
            for (node v : m_subGraph->nodes) {
                while (!(*m_outLeaves)[v].empty()) {
                    InfoLeafPtr L = (*m_outLeaves)[v].popFrontRet();
                    delete L;
                }
            }
            delete m_outLeaves;
        }
        delete m_frontier;
        delete m_opposed;
        delete m_nonOpposed;
        delete m_edge2Key;
        if (m_T) {
            m_T->emptyAllPertinentNodes();
            delete m_T;
        }
        delete m_numbering;
        delete m_tableNumber2Node;
    }
};
 
}
}