Eclipse Community Forums: Standard Widget Toolkit (SWT) » Hide/Show MenuItems in a Menu

Search

Help

Login

Home » Eclipse Projects » Standard Widget Toolkit (SWT) » Hide/Show MenuItems in a Menu

Show: Today's Messages :: Show Polls :: Message Navigator

Switch to threaded view of this topic

Create a new topic

Submit Reply

Hide/Show MenuItems in a Menu [message #530265]

Thu, 29 April 2010 07:16

Missing name Mising name is currently offline

Missing name Mising name

Friend

Messages: 10
Registered: February 2010

Junior Member

Is there a way to hide/show MenuItems inside a Menu?
Neither Menu provides something like menu.setVisible (int index_of_menu_item) nor MenuItem provides anything like menuitem.setVisible (boolean)

Thus, for menus whose contents change depending on the context, the code for creating menu is repeated over and over again (during each pop-up of the menu) which involves adding listeners for menu selection too.
This is quite inefficient I guess.

Simple hide/show mechanism will enable create-once-use-forever approach which will be very efficient.

Report message to a moderator

Re: Hide/Show MenuItems in a Menu [message #530487 is a reply to message #530265]

Thu, 29 April 2010 18:46

Paul Webster is currently offline

Friend

Messages: 6859
Registered: July 2009
Location: Ottawa

Senior Member

paulweb515@gmail.com

you're correct, removing menu items means disposing them. Adding one
back in the correct place involves creating the MenuItem with the
correct index.

In the eclipse Platform we use MenuManager and ContributionItems that
manage the logic of when to dispose and when to recreate MenuItems.
They come from org.eclipse.jface.

PW

--
Paul Webster
http://wiki.eclipse.org/Platform_Command_Framework
http://wiki.eclipse.org/Command_Core_Expressions
http://wiki.eclipse.org/Menu_Contributions
http://wiki.eclipse.org/Menus_Extension_Mapping
http://help.eclipse.org/galileo/index.jsp?topic=/org.eclipse .platform.doc.isv/guide/workbench.htm

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

Report message to a moderator

Switch to threaded view of this topic

Create a new topic

Submit Reply

Previous Topic:	org.eclipse.swt.widgets.Text and Scroll bar
Next Topic:	Wrong cell color return in Linux

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

]

Current Time: Fri Apr 26 19:40:21 GMT 2024

Powered by FUDForum. Page generated in 0.34637 seconds

.:: Contact :: Home ::.

Powered by: FUDforum 3.0.2.
Copyright ©2001-2010 FUDforum Bulletin Board Software

Back to the top