/// <summary>
/// Collapse the InsertionGroup into the scene
/// </summary>
public void Collapse()
{
// Drag operation has finished, we need to perform the collapse
var loadedItems = this.Children;
if (loadedItems.Count == 1)
{
var first = loadedItems.First();
if (first.GetType() == typeof(Object3D) &&
first.Mesh == null &&
first.Children.Count == 1)
{
// collapse our first child into this
this.Children.Modify(list =>
{
first.CollapseInto(list, false);
});
}
}
// Collapse our contents into the root of the scene
// of the scene when it loses focus
scene.Children.Modify(list =>
{
this.CollapseInto(list, false);
});
// Create and push the undo operation
foreach (var item in loadedItems)
{
view3DWidget.AddUndoOperation(new InsertCommand(scene, item));
}
if (scene.SelectedItem == this &&
loadedItems.Count > 0)
{
scene.ClearSelection();
foreach (var item in loadedItems)
{
scene.AddToSelection(item);
}
}
}
