The attached application creates a popup menu that contains checkbox
menuitems.

On Solaris, if one of the checkbox menuitems is clicked, an item event
is not generated.
On NT, an item event is generated in this situation.

To recreate, run the attached application, and click the right button
in the frame that comes up - this will bring up a popup menu that contains checkbox menuitems.
Item event info should be written out when any of the checkbox menuitems
contained in the popup menu is clicked.
==============================================================================

roger.lewis@Eng 1997-08-05

just add a checkboxmenu item to a popup and
try to see if you get any events. On NT it
gets the item events. On Solaris it gets neither.

Here's some source code.

import java.awt.*;
import java.awt.event.*;

public class checkboxtest implements MouseListener, ActionListener, ItemListener
{

    /**
     * Constructor.
     */
     Frame m_f = null;
    public checkboxtest () {
Frame f = new Frame();

f.addMouseListener(this);
m_f = f;
f.setSize(200,200);
f.setVisible(true);
PopupMenu pm = new PopupMenu("test");
CheckboxMenuItem cmi = new CheckboxMenuItem("test1");
cmi.addActionListener(this);
cmi.addItemListener(this);
pm.add(cmi);
m_f.add(pm);
m_pm = pm;
        }
    PopupMenu m_pm ;
    
    public static void main(String args[]) {
new checkboxtest();
    }

    public void mouseClicked(MouseEvent e)
    {
if (e.isPopupTrigger())
{

m_pm.show(m_f, e.getX(), e.getY());
}
    }

    public void actionPerformed(ActionEvent e)
    {
System.out.println("actione performed called");
    }
    
    public void itemStateChanged(ItemEvent e)
    {
System.out.println("itemStateChanged called");
    }
    
    public void mousePressed(MouseEvent e)
    {
if (e.isPopupTrigger())
{
m_pm.show(m_f, e.getX(), e.getY());
}
    }
    
    public void mouseReleased(MouseEvent e)
    {
if (e.isPopupTrigger())
{
m_pm.show(m_f, e.getX(), e.getY());
}
    }
    
    public void mouseEntered(MouseEvent e)
    {
    
    }
    
    public void mouseExited(MouseEvent e)
    {
    
    }
}

=================================================================

SOURCE CODE INCLUDED!


putting CheckboxMenuItems in a subclassed PopupMenu don't
return the ItemEvent as specified.

this works fine on WindowsNT4.0 however.

- the subclasses PopupMenu implements the ItemListener interface
- CheckboxMenuItems are added to this menu in it's constructor
- the subclassed PopupMenu is added as an ItemListener to
  each CheckboxMenuItem ( cmi.addItemListener(this); )
- the implemented itemStateChanged(ItemEvent e) method
  is supposed to process these events inside the subclassed
  PopupMenu, but these events never occur when using the
  Sun Solaris JDK 1.1.2

the exact same code works fine on Windows NT4.0 with JDK 1.1.2.
furthermore, CheckboxMenuItems in a regular Menu of a Frame return
ItemEvents just fine to the Frame (installed as the ItemListener)
for BOTH WinNT4.0 and Solaris

what gives?





//----- source code (1) -----------------
import java.awt.*;
import java.awt.event.*;

/**
* popup menu with checkbox menu items
*
* @author Norifumi Takaya
* @author copyright (c) 1997 Sony Corporation
*/
class CheckboxPopup extends PopupMenu implements ItemListener
{
/** check menu items */
private CheckboxMenuItem a,b,c;

/** constructor */
public CheckboxPopup(String name)
{
super(name);

a = new CheckboxMenuItem("item A",true);
a.addItemListener(this);
add(a);
b = new CheckboxMenuItem("item B",false);
b.addItemListener(this);
add(b);
c = new CheckboxMenuItem("item C",true);
c.addItemListener(this);
add(c);
}

/**
* the item state event handler.
* this routine reponds to changes in the checkbox menu item states
*
* @param e the item event
* @return none
*/
public void itemStateChanged(ItemEvent e)
{
System.out.print("1.1.2 item event from item ");
if(e.getSource().equals(a))
System.out.println("A!");
else if(e.getSource().equals(b))
System.out.println("B!");
else if(e.getSource().equals(c))
System.out.println("C!");
}

}


//-------- source code (2) ------------

import java.awt.*;
import java.awt.event.*;

/**
* test of popup menu with checkbox menu items
*
* @author Norifumi Takaya
* @author copyright (c) 1997 Sony Corporation
*/
public class CheckboxTest extends Frame implements WindowListener, ActionListener
{
public CheckboxPopup pop = null;

    public static void main(String args[])
{
        CheckboxTest d = new CheckboxTest("testing");
        d.setVisible(true);
    }

// constructor
// set up user interface
    public CheckboxTest(String title)
{
super(title);
addWindowListener(this);

Button go;

go = new Button("go");
go.addActionListener(this);
add(go);

setSize(400,300);
setLocation(100,100);

pop = new CheckboxPopup("pop!");
add(pop);
    }

public void windowActivated(WindowEvent e) {}
    public void windowClosed(WindowEvent e) {}
    public void windowDeactivated(WindowEvent e) {}
    public void windowDeiconified(WindowEvent e) {}
    public void windowIconified(WindowEvent e) {}
    public void windowOpened(WindowEvent e) {}

    public void windowClosing(WindowEvent e)
{
System.exit(0);
    }

public void actionPerformed(ActionEvent e)
{
pop.show(this,30,300);
}
}



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