JComboBox.setLightWeightPopupEnabled() is supposed to allow a program to
instruct the combobox whether or not lightweight popups should be used.
This doesn't seem to work at all, ast he program below demonstrates:

import java.awt.*;
import com.sun.java.swing.*;

public class Test extends JFrame {

    public Test() {
       super("Mix Popup Test");

       Box box = Box.createVerticalBox();
       getContentPane().add("Center", box);

       // Create Lightweight Swing ComboBox
       JComboBox light = new JComboBox();
       light.setLightWeightPopupEnabled(false);
       light.addItem("Apple   ");
       light.addItem("Plum    ");
       light.addItem("Banana  ");
       light.addItem("Cherry  ");

       // Create Heavyweight AWT Button
       Button heavy = new Button("Heavyweight Button");

       // Add light & heavy components to box
       box.add(Box.createVerticalStrut(40));
       box.add(light);
       box.add(Box.createVerticalStrut(20));
       box.add(heavy);
       box.add(Box.createVerticalStrut(40));

       pack();
    }
    public static void main(String[] args) {
        Test t = new Test();
        t.show();
    }
}


erik.larsen@Eng 1998-06-09
webbug from ###@###.###

JPopupMenu.setLightWeightPopupEnabled(false) does not work on Solaris.  Popup menus are obscured by heavyweight components even when lightweight menus are turned off.  Under WinNT4, it works.  It fails under Solaris.

import java.awt.*;
import com.sun.java.swing.*;
public class MenuBug extends JFrame {
	public static void main(String args[]) {
		new MenuBug().setVisible(true);
	}
	public MenuBug() {
		getContentPane().add(new Canvas(), BorderLayout.CENTER);

		JMenuBar jcMenubar = new JMenuBar();
		JMenu jcMenu = new JMenu("File");
		jcMenu.getPopupMenu().setLightWeightPopupEnabled(false);
		jcMenu.add(new JMenuItem("Item 1"));
		jcMenu.add(new JMenuItem("Item 2"));
		jcMenu.add(new JMenuItem("Item 3"));
		jcMenu.add(new JMenuItem("Item 4"));
		jcMenubar.add(jcMenu);

		setJMenuBar(jcMenubar);

		setSize(300, 300);
	}
}