public TreePathEventArgs(TreePath path)
{
if (path == null)
throw new ArgumentNullException();
_path = path;
}
public Node FindNode(TreePath path)
{
if (path.IsEmpty())
return _root;
else
return FindNode(_root, path, 0);
}
public System.Collections.IEnumerable GetChildren(TreePath treePath)
{
Node node = FindNode(treePath);
if (node != null)
foreach (Node n in node.Nodes)
yield return n;
else
yield break;
}
/// <summary>
///
/// </summary>
/// <param name="parent">Path to a parent node</param>
/// <param name="indices">Indices of children in parent nodes collection</param>
/// <param name="children">Child nodes</param>
public TreeModelEventArgs(TreePath parent, int[] indices, object[] children)
: base(parent)
{
if (children == null)
throw new ArgumentNullException();
if (indices != null && indices.Length != children.Length)
throw new ArgumentException("indices and children arrays must have the same length");
_indices = indices;
_children = children;
}
public TreePathEventArgs()
{
_path = new TreePath();
}
/// <summary>
///
/// </summary>
/// <param name="parent">Path to a parent node</param>
/// <param name="children">Child nodes</param>
public TreeModelEventArgs(TreePath parent, object[] children)
: this(parent, null, children)
{
}
public bool IsLeaf(TreePath treePath)
{
Node node = FindNode(treePath);
if (node != null)
return node.IsLeaf;
else
throw new ArgumentException("treePath");
}
private Node FindNode(Node root, TreePath path, int level)
{
foreach (Node node in root.Nodes)
if (node == path.FullPath[level])
{
if (level == path.FullPath.Length - 1)
return node;
else
return FindNode(node, path, level + 1);
}
return null;
}
