private static void Register(UTinyEntityView view)
{
if (ActiveViews.Add(view) && ActiveViews.Count == 1)
{
Undo.postprocessModifications += HandlePostProcessModification;
}
}
private void ActiveViews_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
switch (e.Action)
{
case NotifyCollectionChangedAction.Add:
ActiveViews.Add(e.NewItems[0].ToString());
break;
case NotifyCollectionChangedAction.Remove:
ActiveViews.Remove(e.OldItems[0].ToString());
break;
case NotifyCollectionChangedAction.Replace:
break;
case NotifyCollectionChangedAction.Move:
break;
case NotifyCollectionChangedAction.Reset:
ActiveViews.Clear();
foreach (var view in region.ActiveViews)
{
ActiveViews.Add(view.ToString());
}
break;
default:
break;
}
RemoveActiveViewCommand.RaiseCanExecuteChanged();
SelectedViewName = ActiveViews.FirstOrDefault();
}
public void RemoveAllViews()
{
foreach (IView view in Views)
{
Deactivate(view);
ActiveViews.Remove(view);
Views.Remove(view);
}
}
/// <summary>
/// Marks the specified view as active.
/// </summary>
/// <param name="view">The view to activate.</param>
/// <remarks>If there is an active view before calling this method,
/// that view will be deactivated automatically.</remarks>
public override void Activate(object view)
{
object currentActiveView = ActiveViews.FirstOrDefault();
if (currentActiveView != null && currentActiveView != view && this.Views.Contains(currentActiveView))
{
base.Deactivate(currentActiveView);
}
base.Activate(view);
}
/// <summary>
/// Marks the specified view as active.
/// </summary>
/// <param name="view">The view to activate.</param>
/// <remarks>If there is an active view before calling this method,
/// that view will be deactivated automatically.</remarks>
public override void Activate(VisualElement view)
{
var currentActiveView = ActiveViews.FirstOrDefault();
if (currentActiveView != null && currentActiveView != view && Views.Contains(currentActiveView))
{
base.Deactivate(currentActiveView);
}
base.Activate(view);
}
/// <summary>
/// Marks the specified view as inactive.
/// </summary>
/// <param name="view">The view to deactivate.</param>
public virtual void Deactivate(IView view)
{
if (view == null)
{
throw new ArgumentNullException(Resources.ViewShouldNotBeNull);
}
if (GetView(view.Name) == null)
{
throw new ArgumentException(Resources.ViewNotInRegionException);
}
ActiveViews.Remove(view);
}
private static void Unregister(UTinyEntityView view)
{
if (!ActiveViews.Remove(view))
{
return;
}
if (ActiveViews.Count == 0)
{
Undo.postprocessModifications -= HandlePostProcessModification;
}
// From this point, we know that the entity view is being destroyed. What we do not know is if the view is
// being destroyed because we are unloading the scene or if the user deleted the entity through the hierarchy
// or the scene view.
var entity = view.EntityRef.Dereference(Registry);
if (entity?.EntityGroup == null)
{
return;
}
var entityGroupRef = (UTinyEntityGroup.Reference)entity.EntityGroup;
if (UnloadingEntityGroups.Contains(entityGroupRef))
{
return;
}
entity.View = null;
var graph = EntityGroupManager.GetSceneGraph(entityGroupRef);
if (null == graph)
{
return;
}
graph.Delete(graph.FindNode(view.EntityRef));
UTinyHierarchyWindow.InvalidateSceneGraph();
}
/// <summary>
/// Removes the specified view from the region.
/// </summary>
/// <param name="view">The view to remove.</param>
public virtual void Remove(IView view)
{
this.ItemMetadataCollection.Remove(view);
ActiveViews.Remove(view);
Views.Remove(view);
}
public static void AddActiveView(IHotReloadableView view) => ActiveViews.Add(view);
