ingrid.yao@Eng 1997-11-04

Due to replace Motif MainWindow widget by Motif Form widget to
fix many of the frame bugs, the menu-wrapping menubar (double menu bars)
feature is disappear because Form widget does not support this feature
and MainWindow widget did. The only workaround is that the user has to
resize the window, unfortunately he may not realize the menubar is truncated
thus losing access to functionality. And Oracle request this feature
be put back to JDK.


steps to reproduce the problem:
1. Bring up ChgLabel.
   The menu bar frame appears with four items labeled as First, Second,
   Third, and Fourth. And two buttons, Expand and Shrink centered right below
   the menu bar.
2. Click Expand.
   The menu items changed to FirstLongMenu, and SecondLongMenu.
   There is no ThirdLongMenu, and FourthLongMenu items.
   The menu bar frame appears to be correct.
3. Click Shrink.
   Menu items changed. Menu labels changed to: First, Second, Third,
   and Fourth. The items are nicely packed together.
4. Click Expand.
   Menu items displayed as in step 2.
5. Resize the window so that the width of the window is in the middle
   of the ThirdLongMenu menu item.
   Menu items showed FirstLongMenu, and SecondLongMenu. But the
   ThirdLongMenu, and FourthLongMenu disappeared.
   There was no wrapping around for menu items ThirdLongMenu,
   and FourthLongMenu, like it did in JDK1.1.5A.
   We would expect wrapping to occur as it did in JDK1.1.5A but without
   truncating of item labels with JDK1.1.5D.
 
copy bug#4071628 -

** Change the labels on a MenuBar to show the effect on Solaris.
**
** Click on the Expand Button, and the MenuBar labels are changed to be longer
** such that the menu extends past the end of the bar. Click on the Shrink
** Button and the labels are made shorter. Note that the MenuBar size (one
** vs. two lines) isn't correctly adjusted.
**
** Manually resizing the window will fix up the MenuBar size and appearance.
**
** So, click on Expand. The menu labels are made longer, but no additional
** space is provided for them, so all are displayed truncated. Manually
** expand the window width (very little), and the MenuBar expands to two
** lines with fully displayed menu labels. (I saw the fourth menu item overlap
** the right edge of the MenuBar, but this was minor.) Click on Shrink.
** The menu labels are restored to their original sizes, but the menu is
** displayed, centered, in the double height MenuBar.

Test case
=========

import java.applet.*;
import java.awt.*;
import java.awt.event.*;
import java.io.*;
 
public class ChgLabel extends Applet
    implements ActionListener
{
    Button mButton_Expand;
    Button mButton_Shrink;
    Frame mFrame;
    MenuBar mTopMenu;
    Menu mMenu1;
    Menu mMenu2;
    Menu mMenu3;
    Menu mMenu4;
 
    public ChgLabel(Frame frame)
    {
        mFrame = frame;
    }
 
    public static void main(String argv[])
    {
        Frame frame = new Frame("MenuBar label problems...");
        Applet tmp = new ChgLabel(frame);
        frame.add("Center", tmp);
        frame.setSize(300, 300);
        frame.show();
        tmp.start();
    }
 
 
    public void start()
    {
        mButton_Expand = new Button("Expand");
        mButton_Expand.addActionListener(this);
        add(mButton_Expand);
 
        mButton_Shrink = new Button("Shrink");
        mButton_Shrink.addActionListener(this);
        add(mButton_Shrink);
 
        mTopMenu = buildMenu();
        mFrame.setMenuBar(mTopMenu);
    }
 
 
    public MenuBar buildMenu()
    {
        MenuItem mMItem;
        MenuBar bar;
 
        bar = new MenuBar();
 
        mMItem = new MenuItem("Plain1");
        mMenu1 = new Menu("First");
        mMenu1.add(mMItem);
        bar.add(mMenu1);
 
        mMItem = new MenuItem("Plain2");
        mMenu2 = new Menu("Second");
        mMenu2.add(mMItem);
        bar.add(mMenu2);
 
        mMItem = new MenuItem("Plain3");
        mMenu3 = new Menu("Third");
        mMenu3.add(mMItem);
        bar.add(mMenu3);
 
        mMItem = new MenuItem("Plain4");
        mMenu4 = new Menu("Fourth");
        mMenu4.add(mMItem);
        bar.add(mMenu4);
 
        return bar;
    }
 
 
    public void actionPerformed(ActionEvent event)
    {
        if ( event.getSource() == mButton_Expand )
        {
            mMenu1.setLabel("FirstLongMenu");
            mMenu2.setLabel("SecondLongMenu");
            mMenu3.setLabel("ThirdLongMenu");
            mMenu4.setLabel("FourthLongMenu");
        }
        else if ( event.getSource() == mButton_Shrink )
        {
            mMenu1.setLabel("First");
            mMenu2.setLabel("Second");
            mMenu3.setLabel("Third");
            mMenu4.setLabel("Fourth");
        }
    }
}