TreePath: pathByAddingChild(Object child) : TreePath « javax.swing.tree « Java by API

1. Java by API
2. javax.swing.tree
3. TreePath

TreePath: pathByAddingChild(Object child)

  

import java.util.Enumeration;

import javax.swing.JTree;
import javax.swing.tree.TreeNode;
import javax.swing.tree.TreePath;

public class Main {
  public static void main(String[] argv) throws Exception {
    JTree tree = new JTree();
    TreePath path = findByName(tree, new String[] { "JTree", "A", "a" });
  }
  public static TreePath findByName(JTree tree, String[] names) {
    TreeNode root = (TreeNode) tree.getModel().getRoot();
    return find(tree, new TreePath(root), names, 0);
  }

  private static TreePath find(JTree tree, TreePath parent, Object[] nodes, int depth) {
    TreeNode node = (TreeNode) parent.getLastPathComponent();
    Object o = node;

    if (o.equals(nodes[depth])) {
      if (depth == nodes.length - 1) {
        return parent;
      }
      if (node.getChildCount() >= 0) {
        for (Enumeration e = node.children(); e.hasMoreElements();) {
          TreeNode n = (TreeNode) e.nextElement();
          TreePath path = parent.pathByAddingChild(n);
          TreePath result = find(tree, path, nodes, depth + 1);
          if (result != null) {
            return result;
          }
        }
      }
    }
    return null;
  }
}

   
    
  

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