private void connectSpecialNodesInFace()

in graphLayout/jetbrains.mps.graphLayout.orthogonalLayout/source_gen/jetbrains/mps/graphLayout/flowOrthogonalLayout/EmbeddedGraphModifier.java [439:489]
51 lines of code
12 McCabe index (conditional complexity)

  private void connectSpecialNodesInFace(Face face, Iterable<Node> specialNodes) {
    List<Dart> darts = face.getDarts();
    Direction2D prevDir = MapSequence.fromMap(myDartDirections).get(ListSequence.fromList(darts).last());
    Node node = null;
    Direction2D dir = null;
    Dart dartToSplit = null;
    for (Dart dart : ListSequence.fromList(darts)) {
      node = dart.getSource();
      dir = MapSequence.fromMap(myDartDirections).get(dart);
      if (Sequence.fromIterable(specialNodes).contains(node) && prevDir == dir) {
        Direction2D opposite = MapSequence.fromMap(myDartDirections).get(dart).opposite();
        List<Dart> oppositeDarts = getDirectionDarts(face, opposite);
        if (ListSequence.fromList(oppositeDarts).count() == 1) {
          dartToSplit = ListSequence.fromList(oppositeDarts).first();
          break;
        }
      }
      prevDir = dir;
    }
    if (dartToSplit != null) {
      Edge edgeToSplit = dartToSplit.getEdge();
      for (Dart dart : ListSequence.fromList(myEmbeddedGraph.getDarts(edgeToSplit))) {
        MapSequence.fromMap(myDartDirections).removeKey(dart);
      }
      List<Edge> newEdges = ListSequence.fromList(new ArrayList<Edge>());
      Node newNode = myEmbeddedGraph.splitEdge(edgeToSplit, newEdges);
      for (Dart dart : ListSequence.fromList(newEdges).translate(new ITranslator2<Edge, Dart>() {
        public Iterable<Dart> translate(Edge it) {
          return myEmbeddedGraph.getDarts(it);
        }
      })) {
        if (myEmbeddedGraph.getFace(dart) == face) {
          MapSequence.fromMap(myDartDirections).put(dart, dir.opposite());
        } else {
          MapSequence.fromMap(myDartDirections).put(dart, dir);
        }
      }
      Edge splittingEdge = myGraph.connect(node, newNode);
      List<Face> newFaces = myEmbeddedGraph.splitFace(face, ListSequence.fromListAndArray(new ArrayList<Edge>(), splittingEdge), node, newNode);
      for (Dart dart : ListSequence.fromList(myEmbeddedGraph.getDarts(splittingEdge))) {
        if (dart.getSource() == node) {
          MapSequence.fromMap(myDartDirections).put(dart, dir.turnClockwise(1));
        } else {
          MapSequence.fromMap(myDartDirections).put(dart, dir.turnClockwise(1).opposite());
        }
      }
      for (Face newFace : ListSequence.fromList(newFaces)) {
        connectSpecialNodesInFace(newFace, specialNodes);
      }
    }
  }