How to get TreePath from TreeNode?
I want to get treepath object of the jtree from one treenode of the jtree.
But i do not find this method from api.
If likes following :
treeNode is the jTree's TreeNode object.
then
TreePath path=new TreePath(treeNode);
Whether the "path" is the object of the jTree?(I think the "path" is not the object of the jTree's one treepath because the "new" .That will be a new object.)
if not ,is there another method tosolve it?
Thank's for help?
just get the code from the DefaultMutableTreeNode object
* Returns the path from the root, to get to this node. The last
* element in the path is this node.
* @return an array of TreeNode objects giving the path, where the
* first element in the path is the root and the last
* element is this node.
public TreeNode[] getPath() {
return getPathToRoot(this, 0);
* Builds the parents of node up to and including the root node,
* where the original node is the last element in the returned array.
* The length of the returned array gives the node's depth in the
* tree.
* @param aNode the TreeNode to get the path for
* @param depth an int giving the number of steps already taken towards
* the root (on recursive calls), used to size the returned array
* @return an array of TreeNodes giving the path from the root to the
* specified node
protected TreeNode[] getPathToRoot(TreeNode aNode, int depth) {
TreeNode[] retNodes;
/* Check for null, in case someone passed in a null node, or
they passed in an element that isn't rooted at root. */
if(aNode == null) {
if(depth == 0)
return null;
else
retNodes = new TreeNode[depth];
else {
depth++;
retNodes = getPathToRoot(aNode.getParent(), depth);
retNodes[retNodes.length - depth] = aNode;
return retNodes;
}
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