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jenh
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 Posted: Sat Aug 16, 2008 11:13 pm Post subject: Conditionally disable a submenu |
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I have a class that is derived from CallableSystemAction. I am overriding
getMenuPresenter to return a JMenu. The JMenu has multiple JMenuItem
objects added to it so that it appears as a submenu of the top-level File
menu.
I want to conditionally disable the JMenu item (optimally), or
alternatively, to conditionally disable all the submenu items. For all my
other menu items I am able to override isEnabled in the derived
CallableSystemAction class, but for the submenu action the isEnabled
function is no longer called (I have no idea why).
How do I go about conditionally disabling the JMenu submenu?
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Tonny Kohar
Posted via mailing list.
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| Posted: Wed Aug 20, 2008 2:40 am Post subject: Conditionally disable a submenu |
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Hi,
On Sun, Aug 17, 2008 at 6:12 AM, jenh <higbie@beyond6-sigma.com> wrote:
| Quote: |
I have a class that is derived from CallableSystemAction. I am overriding
getMenuPresenter to return a JMenu. The JMenu has multiple JMenuItem
objects added to it so that it appears as a submenu of the top-level File
menu.
I want to conditionally disable the JMenu item (optimally), or
alternatively, to conditionally disable all the submenu items. For all my
other menu items I am able to override isEnabled in the derived
CallableSystemAction class, but for the submenu action the isEnabled
function is no longer called (I have no idea why).
How do I go about conditionally disabling the JMenu submenu?
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I do not know why it is not working in your case.
Another way to enable/disable menu item is by calling
setEnabled(boolean) rather than override the isEnabled(), because the
former method will fire appropriate property change listener, the
later is not. You can call the setEnabled(boolean) during
LookupListenerResultChanged or other event that appropriate for your
case.
Cheers
Tonny Kohar
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Citra FX Photo Effects
imagine, design, create ...
http://www.kiyut.com |
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