Name: rl16235 Date: 06/16/2000


java version "1.3.0"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.0-C)
Classic VM (build 1.3.0-C, native threads, nojit)

I built up a JTree and added a new node at the bottom, under an already
extended parent-node. This new node could not be selected by a mouseclick or by
using the keyboard.

This testprogram shows such a JTree. To reproduce that problem you have to open
the TreeNode "c" and then use the button to fill in a new entry under TreeNode
"c".

The problem doesn't occur when either setRowHeight(21) or setLargeModel(true)
is not called.


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

public class EasyTreeTest2
{
    public static void main(String P_params[])
    {
        JFrame frame = new JFrame();
        frame.addWindowListener (new WindowAdapter()
        {
            public void windowClosing(WindowEvent e) { System.exit(0); }
        });

        frame.getContentPane().setLayout(new FlowLayout(FlowLayout.LEFT, 40,40));

        final JTree t = new JTree();

        t.setRowHeight(21);
        t.setLargeModel(true);

        t.setPreferredSize(new Dimension(100, 200));
        DefaultMutableTreeNode root = new DefaultMutableTreeNode("");
        t.setRootVisible(false);
        DefaultMutableTreeNode a = new DefaultMutableTreeNode("a");
        DefaultMutableTreeNode b = new DefaultMutableTreeNode("b");
        final DefaultMutableTreeNode c = new DefaultMutableTreeNode("c");
        root.add(a);
        root.add(b);
        root.add(c);
        c.add(new DefaultMutableTreeNode("c1"));
        c.add(new DefaultMutableTreeNode("c2"));
        t.setModel(new DefaultTreeModel(root, false));

        frame.getContentPane().add(t);

        final JTextField tf = new JTextField(10);
        JButton bu = new JButton("eini");
        bu.addActionListener(new ActionListener()
        {
            public void actionPerformed(ActionEvent e)
            {
                c.add(new DefaultMutableTreeNode(tf.getText()));
                ((DefaultTreeModel)t.getModel()).reload(c);
            }
        });
        frame.getContentPane().add(tf);
        frame.getContentPane().add(bu);

        frame.pack();
        frame.setVisible(true);
    }
}

###@###.### 2000-06-16
Reproduced.
(Review ID: 105098)
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