public async override Task Undo(Action <UndoObject> cb)
{
if (graph != null)
{
graph.TryAndLoadGraphStack(stack);
await Task.Delay(25);
App.Current.Dispatcher.Invoke(() =>
{
Tuple <string, Point, List <NodeConnection> > result = graph.RemoveNode(id);
if (result != null)
{
if (cb != null)
{
cb.Invoke(new DeleteNode(StackId, result.Item1, id, result.Item2, result.Item3, graph, stack));
}
return;
}
if (cb != null)
{
cb.Invoke(null);
}
});
return;
}
if (cb != null)
{
cb.Invoke(null);
}
}
public void RemoveUIGraphNode(UIGraphNode node)
{
Graph.RemoveNode(node);
DrawGraph(true);
}
public override UndoObject Redo()
{
if (graph != null)
{
Tuple <string, Point, List <Tuple <string, List <Nodes.NodeOutputConnection> > > > result = graph.RemoveNode(id);
if (result != null)
{
return(new UndoDeleteNode(StackId, result.Item1, result.Item2, result.Item3, graph));
}
}
return(null);
}