public static void WrapWith(IObject3D originalItem, IObject3D wrapper, InteractiveScene scene)
{
using (originalItem.RebuildLock())
{
originalItem.Parent.Children.Modify(list =>
{
list.Remove(originalItem);
wrapper.Matrix = originalItem.Matrix;
originalItem.Matrix = Matrix4X4.Identity;
wrapper.Children.Add(originalItem);
list.Add(wrapper);
});
if (scene != null)
{
var topParent = wrapper.Ancestors().LastOrDefault(i => i.Parent != null);
UiThread.RunOnIdle(() =>
{
scene.SelectedItem = topParent ?? wrapper;
});
}
}
}
/// <summary>
/// Got the top of this objects parent tree and get change the name of the object if
/// required to make sure it is not the same as any other descendant
/// </summary>
/// <param name="root"></param>
public static void MakeNameNonColliding(this IObject3D item)
{
var topParent = item.Ancestors().LastOrDefault();
if (topParent != null)
{
var names = topParent.DescendantsAndSelf().Where((i) => i != item).Select((i2) => i2.Name).ToList();
if (string.IsNullOrEmpty(item.Name))
{
// Object3D authors should give their objects a simplified name, but if they fail to do so,
// fallback to a sane default before calling into GetNonCollidingName
item.Name = item.TypeName;
}
item.Name = agg_basics.GetNonCollidingName(item.Name, names);
}
}
public void Dispose()
{
if (selectedItem == null)
{
return;
}
// if the item we had selected is still in the scene, re-select it
if (scene.Children.Contains(selectedItem))
{
scene.SelectedItem = selectedItem;
return;
}
// if the previously selected item is not in the scene
if (!scene.Children.Contains(selectedItem))
{
// and we have only added one new item to the scene
var newItems = scene.Children.Where(c => !childrenAtStart.Contains(c));
// select it
if (newItems.Count() == 1)
{
scene.SelectedItem = newItems.First();
return;
}
else
{
scene.SelectedItem = null;
return;
}
}
// set the root item to the selection and then to the new item
var rootItem = selectedItem.Ancestors().Where(i => scene.Children.Contains(i)).FirstOrDefault();
if (rootItem != null)
{
scene.SelectedItem = rootItem;
scene.SelectedItem = selectedItem;
}
}
public static int Depth(this IObject3D item)
{
return(item.Ancestors().Count());
}