Name: krT82822 Date: 04/02/2000


4/2/2000 eval1127@eng -- filing a bug only because this represents a regression vs. 1.2.2. A workaround exists.

java version "1.3.0rc1"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.0rc1-T)
Java HotSpot(TM) Client VM (build 1.3.0rc1-S, mixed mode)

There has been a change in 1.3RC1 which results in the popup of a JMenu not
being sized correctly after a removeAll() is done on the menu. This worked
correctly in 1.2.2, 1.3beta and 1.3RA.

This also may be platform independent, but I only have 1.3RC1 available on the
NT systems I use.

The problem involves using removeAll() to clear a menu then filling it with
calls to add(). When doing this, the width of the menu doesn't change to reflect
the size of the new items. Here's the problem graphically:

### Before changning menu content menu looks like this
      ________________________
      | A long piece of text |
       -----------------------

### After calling removeAll() on the menu then calling add()
      ________________________
      | Hi |
       -----------------------


I think you can see that the width after the removeAll() should be MUCH
smaller. I'm at a loss how to correct this eye-sore and was hoping
someone could take the simple test program below and make it do what I
want. After invoking the test app click the "Test" menu button _FIRST_ to see
the size the menu item has initially. Then click the "Click to do the test"
button and look at the menu again ... :-(


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

public class MenuResize extends JFrame {
   public static void main(String[] args) {
      new MenuResize();
   }
   private JMenu m;

   public MenuResize() {
      addWindowListener(new WindowAdapter() {
         public void windowClosing(WindowEvent e) {
            System.exit(0);
         }}
      );
      JMenuBar mbar = new JMenuBar();
      setJMenuBar(mbar);

      m = new JMenu("Test");
      JMenuItem mi = new JMenuItem("This is a long piece of text");
      m.add(mi);
      JButton b = new JButton("Click to do the test");
      b.addActionListener(new ActionListener() {
         public void actionPerformed(ActionEvent e) {
            m.removeAll();
            m.add(new JMenuItem("Hi"));
         }}
      );
      mbar.add(m);
      mbar.add(b);
      pack();
      setBounds(300,300,300,300);
      setVisible(true);
   }
}
(Review ID: 102986)
======================================================================