package  test.swing;

 import  javax.swing.*;
 import  javax.swing.event.*;
 import  javax.swing.tree.*;
 import  java.awt.*;

/**
 * Author: agrasoff@rambler.ru
 * Date: 16.12.2005
 */
 public   class  TestDefaultTreeModel  extends  JFrame  implements  TreeExpansionListener {
   public  TestDefaultTreeModel() {
     super ("TestDefaultTreeModel");
    setDefaultCloseOperation(EXIT_ON_CLOSE);

    DefaultMutableTreeNode root =  new  DefaultMutableTreeNode("Root");
    DefaultMutableTreeNode one =  new  DefaultMutableTreeNode("One");
    DefaultMutableTreeNode oneOne =  new  DefaultMutableTreeNode("OneOne");
    DefaultMutableTreeNode two =  new  DefaultMutableTreeNode("Two");
    DefaultMutableTreeNode twoOne =  new  DefaultMutableTreeNode("TwoOne");

    root.add(one);
    root.add(two);
    one.add(oneOne);
    two.add(twoOne);

    DefaultTreeModel model =  new  DefaultTreeModel(root, true);

    JTree tree =  new  JTree(model);
    tree.addTreeExpansionListener( this );

    JPanel panel =  new  JPanel( new  BorderLayout( 3 ,  3 ));
    panel.setBorder(BorderFactory.createTitledBorder("jtree"));
    panel.add( new  JScrollPane(tree));
    setContentPane(panel);
    setSize( 300 ,  500 );
    setVisible(true);
  }

   public   static   void  main(String[] args) {
     new  TestDefaultTreeModel();
  }

   public   void  treeExpanded(TreeExpansionEvent event) {
    System.out.println(event.getPath().toString());
  }

   public   void  treeCollapsed(TreeExpansionEvent event) {
    System.out.println(event.getPath().toString());
  }
}