private static ISceneInsertionPoint ComputeNewInsertionPoint(SceneViewModel viewModel, ISceneInsertionPoint insertionPoint, PastePackage pastePackage)
{
if (pastePackage.Elements.Count == 0 || viewModel.ElementSelectionSet.Count == 0 || !viewModel.ElementSelectionSet.PrimarySelection.IsAncestorOf((SceneNode)insertionPoint.SceneElement))
{
return(insertionPoint);
}
string copyElementToken = pastePackage.ClipboardCopyElementToken;
if (!string.IsNullOrEmpty(copyElementToken) && copyElementToken.Equals(PastePackage.GlobalCopyElementToken))
{
SceneElement parentElement = viewModel.ElementSelectionSet.PrimarySelection.ParentElement;
if (parentElement != null && parentElement.IsViewObjectValid && (viewModel.ActiveEditingContainer.IsAncestorOf((SceneNode)parentElement) && !ElementUtilities.HasVisualTreeAncestorOfType(parentElement.ViewObject.PlatformSpecificObject as DependencyObject, typeof(Viewport2DVisual3D))))
{
insertionPoint = parentElement.DefaultInsertionPoint;
}
}
return(insertionPoint);
}
