JPopupMenu goes behind main JFrame after checking/unchecking its Items.
I've written the following stand-alone code, which basically contains a JFrame that includes a combination of JPopupMenu's and JMenu's. If user right-clicks on the JFrame, a JPopupMenu will popup, which contains a JMenu. This JMenu also includes another JPopupMenu that contains 4 JCheckBoxMenuItems.
The problem that I'm facing is that, after I select one JCheckBoxMenuItem, the popup menu containing them, will go behind the JFrame. How can I get it to stay in front? Here's my SSCCE. I need to turn this in at work by tomorrow at the latest. So, if anyone has time, your help will be very much appreciated. Thanks!
import java.awt.Color;
import java.awt.Point;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.JButton;
import javax.swing.JCheckBoxMenuItem;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JPopupMenu;
import javax.swing.SwingUtilities;
publicclass MyPopupTest{
/**
* @param args
*/
public MyPopupTest(){}
publicvoid generateMenu()
{
final JFrame frame =new JFrame("My Frame");
frame.setSize(300,300);
final JPopupMenu popupMenu =new JPopupMenu();
final JMenu menu =new JMenu("My Menu");
final JPopupMenu itemsPopupMenu =new JPopupMenu();
final JButton okButton =new JButton("OK");
final JCheckBoxMenuItem item1 =new JCheckBoxMenuItem("Item 1",true);
final JCheckBoxMenuItem item2 =new JCheckBoxMenuItem("Item 2",false);
final JCheckBoxMenuItem item3 =new JCheckBoxMenuItem("Item 3",true);
final JCheckBoxMenuItem item4 =new JCheckBoxMenuItem("Item 4",false);
itemsPopupMenu.add(item1);
itemsPopupMenu.add(item2);
itemsPopupMenu.add(item3);
itemsPopupMenu.add(item4);
itemsPopupMenu.add(okButton);
menu.add(itemsPopupMenu);
popupMenu.add(menu);
frame.addMouseListener(new MouseAdapter()
{
publicvoid mouseClicked(MouseEvent e)
{
if(SwingUtilities.isRightMouseButton(e))
{
frame.getContentPane().add(popupMenu);
popupMenu.setLocation(e.getPoint().x+50,e.getPoint().y);
popupMenu.setVisible(true);
}
}
});
popupMenu.addMouseListener(new MouseAdapter()
{
publicvoid mouseEntered(MouseEvent e)
{
itemsPopupMenu.setLocation(new Point(popupMenu.getWidth()+menu.getLocationOnScreen().x, menu.getLocationOnScreen().y));
itemsPopupMenu.setVisible(true);
}
});
item1.addMouseListener(new MouseAdapter()
{
publicvoid mousePressed(MouseEvent e)
{
popupMenu.setVisible(true);
}
publicvoid mouseEntered(MouseEvent e)
{
item1.setBackground(Color.PINK);
}
publicvoid mouseExited(MouseEvent e)
{
item1.setBackground(popupMenu.getBackground());
}
});
item2.addMouseListener(new MouseAdapter()
{
publicvoid mousePressed(MouseEvent e)
{
popupMenu.setVisible(true);
}
publicvoid mouseEntered(MouseEvent e)
{
item2.setBackground(Color.PINK);
}
publicvoid mouseExited(MouseEvent e)
{
item2.setBackground(popupMenu.getBackground());
}
});
item3.addMouseListener(new MouseAdapter()
{
publicvoid mousePressed(MouseEvent e)
{
popupMenu.setVisible(true);
}
publicvoid mouseEntered(MouseEvent e)
{
item3.setBackground(Color.PINK);
}
publicvoid mouseExited(MouseEvent e)
{
item3.setBackground(popupMenu.getBackground());
}
});
item4.addMouseListener(new MouseAdapter()
{
publicvoid mousePressed(MouseEvent e)
{
popupMenu.setVisible(true);
}
publicvoid mouseEntered(MouseEvent e)
{
item4.setBackground(Color.PINK);
}
publicvoid mouseExited(MouseEvent e)
{
item4.setBackground(popupMenu.getBackground());
}
});
okButton.addMouseListener(new MouseAdapter()
{
publicvoid mousePressed(MouseEvent e)
{
popupMenu.setVisible(false);
itemsPopupMenu.setVisible(false);
}
});
frame.setVisible(true);
}
publicstaticvoid main(String [] args)
{
MyPopupTest test =new MyPopupTest();
test.generateMenu();
}
}
