How to disable a JPopupMenu
Hi,
I am using Java 6.
A JPopupMenu is set to a JTextField. Everytime the user right-clicks in the textfield the popup menu shows. However in some cases the popup menu shall not show. Please consider the following pseudo code:
JPopupMenu popup =new JPopupMenu();
popup.add(anAction);
JTextField tf =new JTextField();
tf.setComponentPopupMenu(popup);
If the textField is disabled the popup should not show when user right-clicks:
tf.setEnabled(false);
tf.getComponentPopupMenu().setEnabled(false);
I thought this would be the way to disable the popup but it does not work. Any help is appreciated.
Thx.
[809 byte] By [
squibbera] at [2007-11-27 9:53:26]
# 1
You may have to override the show and/or setVisible methods of the JPopupMenu to check if the component that invoked it is enabled before showing. Here is some pseudo code
JPopupMenu popup = new JPopupMenu() {
public void show(Component c, int x, int y) {
if(!c.isEnabled()) {
return;
}
super.show(c,x,y);
}
};
popup.add(anAction);
JTextField tf = new JTextField();
tf.setComponentPopupMenu(popup);
ICE
# 3
> actually it is not disabled by overriding the show method - it is just not shown
True that. I don't know if there is a "standard" way to disable a JPopupMenu, but I always say, it is not about standards when initially presented with a problem, but solutions. If it works for now fine, later if a standard and more efficient way of getting around the problem surfaces then we swtich to that.
ICE
