public Gtk.TreePath GetPathFromItem(TItem item)
{
var path = new Gtk.TreePath();
var parents = GetParents(item);
foreach (var parent in parents)
{
var items = (TStore)(object)parent;
var found = false;
for (int i = 0; i < items.Count; i++)
{
if (object.ReferenceEquals(items[i], item))
{
path.PrependIndex(i);
item = parent;
found = true;
break;
}
}
if (!found)
{
return(null);
}
}
return(path);
}
/// <summary>
/// Gets a Gtk.TreeIter for the node.
/// </summary>
/// <param name="iter">Receives the iterator to the node within the Gtk.TreeStore.</param>
/// <param name="treeStore">The tree store containing reference to this node.</param>
/// <returns><c>true</c>, if iter was successfully retrieved, or this node is the root, <c>false</c> otherwise.</returns>
/// <remarks>If this is the root node, <paramref name="iter"/> contains Gtk.TreeIter.Zero. Caller must check for this.</remarks>
internal bool GetIterForItem(out Gtk.TreeIter iter, Gtk.TreeStore treeStore)
{
iter = Gtk.TreeIter.Zero;
var path = new Gtk.TreePath();
var node = Model;
var parent = Parent;
while (parent != null)
{
var index = parent.IndexOfChild(node);
path.PrependIndex(index);
node = parent;
parent = node.Parent;
}
var succeeded = (path.Depth == 0) || treeStore.GetIter(out iter, path);
return(succeeded);
}