static State MergeStack(State previousState, MergeStackAction action)
{
VSGraphModel graphModel = (VSGraphModel)previousState.CurrentGraphModel;
var stackModelA = (StackBaseModel)action.StackModelA;
var stackModelB = (StackBaseModel)action.StackModelB;
Undo.RegisterCompleteObjectUndo((Object)graphModel.AssetModel, "Move stacked nodes");
// Move all nodes from stackB to stackA
stackModelA.MoveStackedNodes(stackModelB.NodeModels.ToList(), -1, false);
// Move output connections of stackB to stackA
var previousEdgeConnections = graphModel.GetEdgesConnections(stackModelB.OutputPorts.First()).ToList();
foreach (var edge in previousEdgeConnections)
{
graphModel.CreateEdge(edge.InputPortModel, stackModelA.OutputPorts.First());
}
// Delete stackB
graphModel.DeleteNode(stackModelB, GraphModel.DeleteConnections.True);
previousState.MarkForUpdate(UpdateFlags.GraphTopology);
return(previousState);
}