public LayerData(LayerTreeNode treeNode, NlmTreeListView listView, HandleMap handleMap)
{
ParentIDs = new List <Guid>();
// Node Properties
ID = treeNode.ID;
if (treeNode.Parent == null)
{
ParentIDs.Add(new Guid());
}
else
{
ParentIDs.Add(treeNode.Parent.ID);
}
foreach (LayerTreeNode instanceParent in handleMap.GetTreeNodesByHandle(treeNode.Handle))
{
if (instanceParent != treeNode)
{
if (instanceParent.Parent == null)
{
ParentIDs.Add(new Guid());
}
else
{
ParentIDs.Add(instanceParent.Parent.ID);
}
}
}
// Column Properties
Visible = treeNode.Visible;
Freeze = treeNode.Freeze;
Render = treeNode.Render;
Box = treeNode.Box;
Expanded = listView.IsExpanded(treeNode);
}
/// <summary>
/// Deletes the selected treenodes, including associated max nodes.
/// All children of selection are also deleted.
/// Max nodes will not be deleted if not all instanced nodes are selected.
/// If every layer 0 instance is selected, nothing will happen.
/// </summary>
public void DeleteSelection()
{
#if DEBUG
System.Diagnostics.Stopwatch stopwatch = new System.Diagnostics.Stopwatch();
stopwatch.Start();
#endif
ListView.NodeControl.MaxEvents.NodeEvents.Unregister();
ListView.NodeControl.MaxEvents.LayerEvents.LayerDeleted.UnregisterNotification();
// Don't do anything if every single layer 0 is selected.
IILayer layer0 = MaxLayers.GetLayer(0);
UIntPtr layer0handle = MaxAnimatable.GetHandleByAnim(layer0);
List <BaseTreeNode> layerTreeNodes = HandleMap.GetTreeNodesByHandle(layer0handle);
if (layerTreeNodes.All(x => NodeQuery.SelectionAndAllChildNodes.Contains(x)))
{
return;
}
// Collect the selection IEnumerables to use.
HashSet <BaseTreeNode> selectionAndAllChildren = new HashSet <BaseTreeNode>
(NodeQuery.SelectionAndAllChildNodes);
// Calculate layer and object handles.
IEnumerable <UIntPtr> objectHandles = selectionAndAllChildren.Where
(x => x is ObjectTreeNode).Cast <ObjectTreeNode>().Select(x => x.Handle);
IEnumerable <UIntPtr> layerHandles = selectionAndAllChildren.Where
(x => x is LayerTreeNode).Cast <LayerTreeNode>().Select(x => x.Handle);
// Delete handles from max.
foreach (UIntPtr handle in objectHandles)
{
List <BaseTreeNode> instances = HandleMap.GetTreeNodesByHandle(handle);
if (instances.Count() > 1)
{
if (!instances.All(x => selectionAndAllChildren.Contains(x)))
{
continue;
}
}
MaxNodes.DeleteNode(handle);
}
foreach (UIntPtr handle in layerHandles)
{
List <BaseTreeNode> instances = HandleMap.GetTreeNodesByHandle(handle);
if (instances.Count() > 1)
{
if (!instances.All(x => selectionAndAllChildren.Contains(x)))
{
continue;
}
}
MaxLayers.DeleteLayer(handle);
}
// And now to delete the tree nodes now there are no max nodes.
DeleteTreeNodes(selectionAndAllChildren);
// The default behaviour of the listview is to maintain selection based on item index.
// This is not very desirable, as the selection should be nothing.
ListView.SelectedObjects = new Object[] {};
ListView.NodeControl.MaxEvents.LayerEvents.LayerDeleted.RegisterNotification();
ListView.NodeControl.MaxEvents.NodeEvents.Register();
#if DEBUG
stopwatch.Stop();
MaxListener.PrintToListener("DeleteSelection completed in: " + stopwatch.ElapsedMilliseconds);
#endif
}