Converting All Nodes in a JTree Component to a TreePath Array : Tree « Swing JFC « Java






  1. Java
  2. Swing JFC
  3. Tree

Converting All Nodes in a JTree Component to a TreePath Array

    

import java.util.ArrayList;
import java.util.Enumeration;
import java.util.List;

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

public class Main {
  public TreePath[] getPaths(JTree tree, boolean expanded) {
    TreeNode root = (TreeNode) tree.getModel().getRoot();
    List<TreePath> list = new ArrayList<TreePath>();
    getPaths(tree, new TreePath(root), expanded, list);

    return (TreePath[]) list.toArray(new TreePath[list.size()]);
  }

  public void getPaths(JTree tree, TreePath parent, boolean expanded, List<TreePath> list) {
    if (expanded && !tree.isVisible(parent)) {
      return;
    }
    list.add(parent);
    TreeNode node = (TreeNode) parent.getLastPathComponent();
    if (node.getChildCount() >= 0) {
      for (Enumeration e = node.children(); e.hasMoreElements();) {
        TreeNode n = (TreeNode) e.nextElement();
        TreePath path = parent.pathByAddingChild(n);
        getPaths(tree, path, expanded, list);
      }
    }
  }
}








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