Removing focus from a node

Question

I have a frame in which a scrollpane hold a jtree.
I picked up the following code from the forum for making sure that only when the right click is on a node, the popupmenu is displayed.
public void mouseReleased(MouseEvent e) {
            if (e.getButton() == MouseEvent.BUTTON3) {
                TreePath closestTreePath = tree.getClosestPathForLocation(e.getPoint(), e.getPoint());
                if (closestTreePath != null) {
                    tree.setSelectionPath(closestTreePath);
                     // select the row in the tree for the path
                    selectedRow = tree.getRowForPath(closestTreePath);
                    YourNode node = (YourNode) closestTreePath.getLastPathComponent();
                   // assuming your popup menu is already created somewhere else
                   popupMenu.show(deviceTree, pt.x, pt.y);
                    selectedRow = -1;
}by codecraig
But now the problem is that whenever i do right click anywhere on the tree a node gets selected and the popupmenu is displyed. i want to display the right click is on the node.
here is my code
import javax.swing.*;
import javax.swing.tree.*;
import java.awt.event.*;
public class tree_right_click
     //JPopupMenu popupmenu = new JPopupMenu();
     JTree mytree;
     SysPopupListener s = new SysPopupListener();
     public tree_right_click()
          DefaultMutableTreeNode root = new DefaultMutableTreeNode("root");
          DefaultMutableTreeNode l1 = new DefaultMutableTreeNode("level1");
          DefaultMutableTreeNode l2 = new DefaultMutableTreeNode("level2");
          mytree=new JTree(root);
          mytree.addMouseListener(s);
          root.add(l1);
          l1.add(l2);
          JScrollPane treeview = new JScrollPane(mytree);
          JFrame fr = new JFrame("My Frame");
          fr.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          fr.getContentPane().add(treeview);
          fr.setSize(300,300);
          fr.setVisible(true);
          public static void main(String args[])
          new tree_right_click();
class SysPopupListener extends MouseAdapter
     JPopupMenu popupmenu = new JPopupMenu();
     SysPopupListener()
          JMenuItem part = new JMenuItem("Add detail 1");
          JMenuItem part2 = new JMenuItem("Add detail 2");
          part.addMouseListener(this);
          part2.addMouseListener(this);
          popupmenu.add(part);
          popupmenu.add(part2);
     public void mousePressed(MouseEvent e)
          maybeshowpopup(e);
     public void mouseReleased(MouseEvent e)
          maybeshowpopup(e);
     void maybeshowpopup(MouseEvent e)
          if(e.isPopupTrigger())
               JTree t = (JTree)e.getComponent();
               TreePath closestTreePath = t.getClosestPathForLocation(e.getX(), e.getY());
            if (closestTreePath != null) {
                t.setSelectionPath(closestTreePath);
                 // select the row in the tree for the path
                int selectedRow = t.getRowForPath(closestTreePath);
                DefaultMutableTreeNode n = (DefaultMutableTreeNode) closestTreePath.getLastPathComponent();
                System.out.print(n);
               // assuming your popup menu is already created somewhere else
                popupmenu.show(e.getComponent(),e.getX(),e.getY());
                selectedRow = -1;
}Please help,
thanks in advance,
Puneet

Answer 1

I made some changes to your code and seems to be working like this:
          if(e.isPopupTrigger()) {
               JTree t = (JTree)e.getComponent();
               TreePath closestTreePath = t.getClosestPathForLocation(e.getX(), e.getY());
               if (closestTreePath != null) {
                    t.setSelectionPath(closestTreePath);
                    // select the row in the tree for the path
                    int selectedRow = t.getRowForPath(closestTreePath);
                    DefaultMutableTreeNode n = (DefaultMutableTreeNode) closestTreePath.getLastPathComponent();
                    System.out.print(n);
                    // assuming your popup menu is already created somewhere else
                    popupmenu.show(e.getComponent(),e.getX(),e.getY());
                    selectedRow = -1;
               JTree t = (JTree)e.getComponent();
               TreePath path = t.getPathForLocation(e.getX(), e.getY());
               if (path != null) {
                    popupmenu.show(e.getComponent(),e.getX(),e.getY());
          }