public bool HideVertex(TVertex v, string tag)
{
HiddenCollection h = GetHiddenCollection(tag);
var eeh = new EdgeAction <TVertex, TEdge>(e => h.hiddenEdges.Add(e));
var veh = new VertexAction <TVertex>(vertex => h.hiddenVertices.Add(vertex));
EdgeHidden += eeh;
VertexHidden += veh;
bool ret = HideVertex(v);
EdgeHidden -= eeh;
VertexHidden -= veh;
return(ret);
}
/// <inheritdoc />
public bool HideVertex(TVertex vertex, string tag)
{
HiddenCollection collection = GetHiddenCollection(tag);
var hideEdgeHandler = new EdgeAction <TVertex, TEdge>(e => collection.HiddenEdges.Add(e));
var hideVertexHandler = new VertexAction <TVertex>(v => collection.HiddenVertices.Add(v));
EdgeHidden += hideEdgeHandler;
VertexHidden += hideVertexHandler;
bool hidden = HideVertex(vertex);
EdgeHidden -= hideEdgeHandler;
VertexHidden -= hideVertexHandler;
return(hidden);
}
public static VertexPredecessorRecorderObserver <TVertex, TEdge> GetPredecessors <TVertex, TEdge> (this IVertexListGraph <TVertex, TEdge> graph, TVertex obj, VertexAction <TVertex> onVertex) where TEdge : IEdge <TVertex>
{
var bfsa = new BreadthFirstSearchAlgorithm <TVertex, TEdge> (graph);
bfsa.ExamineVertex += (vertex) => {
onVertex?.Invoke(vertex);
};
var vertexPredecessorRecorderObserver = new VertexPredecessorRecorderObserver <TVertex, TEdge> ();
using (vertexPredecessorRecorderObserver.Attach(bfsa)) {
bfsa.Compute(obj);
}
return(vertexPredecessorRecorderObserver);
}