Drawing at nodes

[shalini gnana]

I want to drawline against the parent node when its expanded and rectangle at all chil node....But its not showing any line...
How can i draw for each node?
Please help me..

    
/* * Reg.java * * Created on October 4, 2007, 3:12 PM * * To change this template, choose Tools | Template Manager * and open the template in the editor. */ 
package javaapplication2;
 import java.awt.BorderLayout;
import java.awt.Graphics;
import java.awt.Rectangle;
import java.util.Hashtable;
 import javax.swing.JApplet;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTree;
import javax.swing.UIManager;
import javax.swing.event.TreeSelectionEvent;
import javax.swing.event.TreeSelectionListener;
import javax.swing.tree.DefaultMutableTreeNode; 
import javax.swing.tree.TreePath;
/** * * @author 8563 */
 

public class reg extends JApplet 
{
    private JTree tree;
    private Drawing drawing; 
 
public DefaultMutableTreeNode createNodes()
{
    DefaultMutableTreeNode rootnode = new DefaultMutableTreeNode("RESOURCE"); 
    DefaultMutableTreeNode resource1 = new DefaultMutableTreeNode("RESOURCE1");
    DefaultMutableTreeNode resource2 = new DefaultMutableTreeNode("RESOURCE2");
    DefaultMutableTreeNode resource3 = new DefaultMutableTreeNode("RESOURCE3"); 
    rootnode.add(resource1);
    rootnode.add(resource2);
    rootnode.add(resource3); 
    resource1.add(new DefaultMutableTreeNode("task1"));
    resource1.add(new DefaultMutableTreeNode("task2"));
    resource1.add(new DefaultMutableTreeNode("task3")); 
    resource2.add(new DefaultMutableTreeNode("task1"));
    resource2.add(new DefaultMutableTreeNode("task2"));
    resource2.add(new DefaultMutableTreeNode("task3")); 
    resource3.add(new DefaultMutableTreeNode("task1"));
    resource3.add(new DefaultMutableTreeNode("task2"));
    resource3.add(new DefaultMutableTreeNode("task3")); 
    return rootnode;
} 
public void init() 
{  
    try 
    {
        UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
    } 
    catch (Exception evt) 
    {
        evt.printStackTrace();
    }
    drawing = new Drawing();
    tree = new JTree(createNodes());
    tree.addTreeSelectionListener(drawing); 
    JPanel p =  new JPanel();
    p.setLayout(new BorderLayout());
    p.add(tree, BorderLayout.WEST);
    p.add(drawing, BorderLayout.CENTER);
    getContentPane().add(new JScrollPane(p));
}  
private  class Drawing extends JPanel implements TreeSelectionListener 
{
    JTree tree = new JTree();
    public String selectedParent = " ";  
    private String selectedChildValue = "";
    private int selectedChildY = -1;
    private Hashtable nodeStates = new Hashtable();
    Object EXPANDED = new Object();
    TreePath path;
 
public void paintComponent (Graphics g)
{
    super.paintComponent(g);
 
    int x = 30;
    for (int i=0; i<4; i++)
    {
        x += 70;
        g.drawString(""+i,x,25+i*30);  
        g.drawRect(x,i*30,70,30)  ;
    }
    
    if(isExpanded(path)== true)
          
    {
        g.drawString(" ",5,selectedChildY);
    }
    if (!selectedChildValue.equals("")) 
    {
        g.drawString("Currently selected child: " + selectedChildValue + ".", 5, selectedChildY);
    }
} 
public void valueChanged(TreeSelectionEvent e) 
{
    DefaultMutableTreeNode node = (DefaultMutableTreeNode)e.getPath().getLastPathComponent();
    boolean Path = e.isAddedPath(); 
    System.out.println("node is : " + node);
    System.out.println("userobj : " + node.getUserObject());
    if(e.isAddedPath() == true)
    {
        repaint();
    }
        if (Path == true)
            {
                selectedChildValue = (String)node.getUserObject();
                JTree tree = (JTree)e.getSource();
                Rectangle bounds = tree.getPathBounds(e.getPath());
                selectedChildY = bounds.y + bounds.height;
            }
       else
            {
                selectedChildValue = "";
                selectedChildY = -1;
            }
      if(!node.isRoot())
            {
                selectedParent  = (String)node.getUserObject();
                JTree tree = (JTree)e.getSource();
                Rectangle bounds = tree.getPathBounds(e.getPath());
                selectedChildY = bounds.y + bounds.x;
            }
     repaint();
}
public boolean isExpanded( TreePath path)
{
    if (path== null)
        return false;
    Object state = nodeStates.get(path);
    if ((state == null) || (state != EXPANDED))
        return false;
    TreePath Path = path.getParentPath();
    
        if(Path!= null)
        return isExpanded(Path);
        
   return true;
                   
    }
    
}
            
}

[Nathan Pruett]

Why start a new topic when this same post is already in the original thread? Closing this copy.