void RestoreExpandedState(ObjectValueNode node)
{
if (treeView.Controller.GetNodeWasExpandedAtLastCheckpoint(node))
{
if (TryGetValue(node, out var item))
{
treeView.ExpandItem(item);
}
}
}
public void Expand()
{
treeView.ExpandItem(treeView.ItemAtRow(0), false);
}
public void Replace(ObjectValueNode node, ObjectValueNode[] replacementNodes)
{
if (!TryGetValue(node, out var item))
{
return;
}
var parent = item.Parent;
int index = -1;
if (parent == null)
{
return;
}
for (int i = 0; i < parent.Children.Count; i++)
{
if (parent.Children[i] == item)
{
index = i;
break;
}
}
if (index == -1)
{
return;
}
parent.Children.RemoveAt(index);
mapping.Remove(item.Target);
item.Dispose();
treeView.BeginUpdates();
var indexes = new NSIndexSet(index);
if (parent.Target is RootObjectValueNode)
{
treeView.RemoveItems(indexes, null, NSTableViewAnimation.None);
}
else
{
treeView.RemoveItems(indexes, parent, NSTableViewAnimation.None);
}
if (replacementNodes.Length > 0)
{
for (int i = 0; i < replacementNodes.Length; i++)
{
Insert(parent, index + i, replacementNodes [i]);
}
var range = new NSRange(index, replacementNodes.Length);
indexes = NSIndexSet.FromNSRange(range);
if (parent.Target is RootObjectValueNode)
{
treeView.InsertItems(indexes, null, NSTableViewAnimation.None);
}
else
{
treeView.InsertItems(indexes, parent, NSTableViewAnimation.None);
}
foreach (var n in replacementNodes)
{
if (treeView.Controller.GetNodeWasExpandedAtLastCheckpoint(n))
{
if (TryGetValue(n, out MacObjectValueNode x))
{
treeView.ExpandItem(x);
}
}
}
}
treeView.EndUpdates();
}
