public void Clear()
{
foreach (var g in BackGraphs.ToArray())
{
UnregisterBackGraph(g);
}
}
public void RegisterBackGraph(IGraph <TSourceItem, TSourceEdge> root)
{
if (!BackGraphs.Contains(root))
{
BackGraphs.Add(root);
root.GraphChange -= this.BackGraphChange;
root.GraphChange += this.BackGraphChange;
root.ChangeData -= this.BackGraphChangeData;
root.ChangeData += this.BackGraphChangeData;
}
}
public void UnregisterBackGraph(IGraph <TSourceItem, TSourceEdge> root, bool forced)
{
root = BackGraphsOf(root).FirstOrDefault();
var remove = forced || !ScenesOfBackGraph(root).Any();
if (root != null && remove)
{
root.GraphChange -= this.BackGraphChange;
root.ChangeData -= this.BackGraphChangeData;
BackGraphs.Remove(root);
}
}
public IEnumerable <IGraph <TSourceItem, TSourceEdge> > BackGraphsOf(IGraph <TSourceItem, TSourceEdge> graph)
{
return(BackGraphs.Where(g => g == graph || g.UnWrapped() == graph || g.RootSink() == graph));
}
