GraphViewChange GraphViewChanged(GraphViewChange graphViewChange)
{
if (graphViewChange.edgesToCreate != null)
{
foreach (var edge in graphViewChange.edgesToCreate)
{
var leftSlot = edge.output.GetSlot();
var rightSlot = edge.input.GetSlot();
if (leftSlot != null && rightSlot != null)
{
m_Graph.owner.RegisterCompleteObjectUndo("Connect Edge");
m_Graph.Connect(leftSlot.slotReference, rightSlot.slotReference);
}
}
graphViewChange.edgesToCreate.Clear();
}
if (graphViewChange.movedElements != null)
{
foreach (var element in graphViewChange.movedElements)
{
var node = element.userData as INode;
if (node == null)
{
continue;
}
var drawState = node.drawState;
drawState.position = element.GetPosition();
node.drawState = drawState;
}
}
var nodesToUpdate = m_NodeViewHashSet;
nodesToUpdate.Clear();
if (graphViewChange.elementsToRemove != null)
{
m_Graph.owner.RegisterCompleteObjectUndo("Remove Elements");
m_Graph.RemoveElements(graphViewChange.elementsToRemove.OfType <MaterialNodeView>().Select(v => (INode)v.node),
graphViewChange.elementsToRemove.OfType <Edge>().Select(e => (IEdge)e.userData));
foreach (var edge in graphViewChange.elementsToRemove.OfType <Edge>())
{
if (edge.input != null)
{
var materialNodeView = edge.input.node as MaterialNodeView;
if (materialNodeView != null)
{
nodesToUpdate.Add(materialNodeView);
}
}
if (edge.output != null)
{
var materialNodeView = edge.output.node as MaterialNodeView;
if (materialNodeView != null)
{
nodesToUpdate.Add(materialNodeView);
}
}
}
}
foreach (var node in nodesToUpdate)
{
node.UpdatePortInputVisibilities();
}
UpdateEdgeColors(nodesToUpdate);
return(graphViewChange);
}