private void onLayerCreated(Object sender, SystemNotificationAnimEventArgs e)
{
#if DEBUG
MaxListener.PrintToListener("onLayerCreated");
#endif
List <LayerTreeNode> createdNodes = new List <LayerTreeNode>();
foreach (UIntPtr handle in e.Handles)
{
// TODO: Add handlemap ref to this class.
// LayerTreeNode newNode = NodeControl.Create.CreateTreeNode(NlmTreeNode.NodeClass.Layer, handle);
LayerTreeNode newNode = new LayerTreeNode(handle, NodeControl.HandleMap);
createdNodes.Add(newNode);
}
ListView.AddObjects(createdNodes);
ListView.Sort(ListView.NlmColumns.NameColumn, SortOrder.Ascending);
}
// TODO: Change List to IEnumerable
public void MoveTreeNodes(IEnumerable <BaseTreeNode> children, BaseTreeNode newParent)
{
// Removing root nodes is expensive.
// In order to speed things up, build an array of root nodes to delete.
List <BaseTreeNode> rootRemoveNodes = new List <BaseTreeNode>();
List <BaseTreeNode> rootAddNodes = new List <BaseTreeNode>();
foreach (BaseTreeNode child in children)
{
if (!(child.Parent == null && newParent == null))
{
// If the parent is null it's a root node.
// If there is a parent, remove it from children.
if (child.Parent == null)
{
rootRemoveNodes.Add(child);
}
else
{
child.Parent.Children.Remove(child);
}
// Set the child to the new parent.
child.Parent = newParent;
// If the new parent is null, it should become a root node.
// If newParent is not null, add it to the children.
if (newParent == null)
{
rootAddNodes.Add(child);
}
else
{
newParent.Children.Add(child);
}
}
}
// Finally, add all new root nodes to the listview and refresh nodes.
if (rootRemoveNodes.Count > 0)
{
ListView.RemoveObjects(rootRemoveNodes);
}
if (rootAddNodes.Count > 0)
{
ListView.AddObjects(rootAddNodes);
}
}
private void onSystemPostMerge(Object sender, SystemNotificationObjectEventArgs e)
{
#if DEBUG
MaxListener.PrintToListener("onSystemPostMerge");
#endif
try
{
ListView.BeginUpdate();
// Collect existing layer and folder nodes.
IEnumerable <FolderTreeNode> existingFolderNodes = NodeControl.Query.FolderNodes;
IEnumerable <LayerTreeNode> existingLayerNodes = NodeControl.Query.LayerNodes;
// Unfortunately no event is fired for nodes that are added to layers that already exist.
// For this reason we need to refresh the children in every layer.
NodeControl.Create.AddMissingChildObjects(existingLayerNodes);
ListView.RefreshObjects(existingLayerNodes.ToList());
// After merge, get all new layers that need to be added to NLM.
// Old layers are collected because no notification happens for nodes added to existing layers :/
List <IILayer> newLayers = new List <IILayer>();
foreach (IILayer layer in MaxLayers.Layers)
{
UIntPtr handle = MaxAnimatable.GetHandleByAnim(layer as IAnimatable);
if (!NodeControl.HandleMap.ContainsHandle(handle))
{
newLayers.Add(layer);
}
}
// Check each new layer for any folder data saved on the attribute.
// If any data exists, append it ot folderDataList.
List <BaseTreeNode> treeNodeList = new List <BaseTreeNode>();
List <FolderData> folderDataList = new List <FolderData>();
foreach (IILayer layer in newLayers)
{
List <FolderData> parentFolders = MaxIO.LoadParentFolderData(layer as IAnimatable, ListView);
if (parentFolders != null)
{
foreach (FolderData folderData in parentFolders)
{
if (!folderDataList.Contains(folderData))
{
folderDataList.Add(folderData);
}
}
}
}
// We only add new folders, so build a hashtable of already existing folder nodes.
// This hashtable is passed to the Build methods, which checks before creating a new node.
Hashtable folderNodeIdMap = new Hashtable();
foreach (FolderTreeNode folderNode in existingFolderNodes)
{
folderNodeIdMap.Add(folderNode.ID, folderNode);
}
// Build new folder and layer nodes, and append them to the treeNodeList.
NodeControl.Create.BuildFolderNodes(treeNodeList, folderDataList, folderNodeIdMap);
NodeControl.Create.BuildLayerAndObjectNodes(treeNodeList, newLayers, folderNodeIdMap);
// Finally, add the new objects.
ListView.AddObjects(treeNodeList);
}
catch
{
throw new Exception();
}
finally
{
ListView.EndUpdate();
}
}