private void SetSelectionAndExpandedState(List <ISceneGraphNode> nodes)
{
var ids = AsInstanceIds(nodes.Select(n => n.Parent))
.Concat(nodes.Where(n => null == n.Parent).Select(n => n.Graph).OfType <SceneGraph>().Select(g => g.Scene.SceneGuid.GetHashCode()))
.Distinct()
.ToArray();
IdsToExpand.AddRange(ids);
Selection.instanceIDs = AsInstanceIds(nodes).ToArray();
}
public void TransferSelection(List <Guid> guids)
{
var references = guids.Select(g => m_ComponentCache.GetEntityReference(g)).Where(r => r && null != r).ToList();
Selection.instanceIDs = references.Select(r => r.gameObject.GetInstanceID()).ToArray();
IdsToExpand.AddRange(references
.Select(e => e.transform.parent)
.Where(p => p && null != p)
.Select(p => p.gameObject.GetInstanceID()));
}
private DragAndDropVisualMode DoHandleSingleObjectDrop <TObject>(DragAndDropArgs args, TObject o, int offset)
{
var handler = HierarchyDragAndDrop <TObject, Key> .SingleObjectDrop;
if (null == handler)
{
return(DragAndDropVisualMode.Rejected);
}
var item = GetDragAndDropItem(args);
var result = DragAndDropVisualMode.Rejected;
ISceneGraphNode resultNode = null;
if (item is SceneItem sceneItem)
{
if (null != (resultNode = handler(m_Session, o, sceneItem.Graph, null,
args.dragAndDropPosition == DragAndDropPosition.BetweenItems ? args.insertAtIndex : -1)))
{
IdsToExpand.Add(sceneItem.id);
result = DragAndDropVisualMode.Link;
}
}
if (item is EntityItem entityItem)
{
var node = entityItem.Node;
if (null != (resultNode = handler(m_Session, o, node.Graph as SceneGraph, node,
args.dragAndDropPosition == DragAndDropPosition.BetweenItems ? args.insertAtIndex : -1)))
{
IdsToExpand.Add(entityItem.id);
result = DragAndDropVisualMode.Link;
}
}
if (null == resultNode)
{
return(DragAndDropVisualMode.Rejected);
}
if (result == DragAndDropVisualMode.Link)
{
if (resultNode is EntityNode entityNode)
{
EntityHierarchyWindow.SelectOnNextPaint(entityNode.Guid);
}
}
return(result);
}
public override void OnGUI(Rect rect)
{
if (ShouldReload)
{
Reload();
}
if (IdsToExpand.Count > 0)
{
ForceExpanded(IdsToExpand);
IdsToExpand.Clear();
}
base.OnGUI(rect);
}
