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JFace dynamic menu accelerators [message #467027]

Fri, 27 April 2007 09:00

Michael Baranov

Messages: 6
Registered: July 2009

Junior Member

Greetings!
...Please redirect me if I'm in the wrong group with this...

I'm trying to create a dynamic menu with JFace (no RCP). I'm using
MenuManager, the usual code for a dynamic menu. The problem is that
accelerators do not work unless the menu is displayed at least once.

Obviously, when the menu is displayed, it is recreated. After recreation
accelerators work. That's logical. But how to overcome this problem? I
would like the menu to be recreated on accelerator-key-press too.

Thank you!

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Re: JFace dynamic menu accelerators [message #467038 is a reply to message #467027]

Fri, 27 April 2007 11:53

Paul Webster

Messages: 6859
Registered: July 2009
Location: Ottawa

Senior Member

In SWT (and JFace) if you want to use accelerators (CTRL+SHIFT+T) you
normally have to instantiate a menu from the MenuManager. Once the menu
items have the accelerator text, then accelerators work ... but they
won't work until you create the menu. I think you can use MenuManager
API to force the create of the menu without actually showing it.

The other alternative is to put a KeyDown/Traverse filter on the Display
so you can react to *all* incoming key events ... but then you have to
manage that yourself somehow (in eclipse we use WorkbenchKeyboard).

Later,
PW

Paul Webster
http://wiki.eclipse.org/Platform_Command_Framework
http://wiki.eclipse.org/Command_Core_Expressions
http://wiki.eclipse.org/Menu_Contributions

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