Re: [ROOT] Problems with TGPopupMenu::Associate()

From: Fons Rademakers (Fons.Rademakers@cern.ch)
Date: Fri Feb 08 2002 - 19:28:52 MET


Hi Brett,

  sound like a good idea. Could probably be implemented in such a way
that it is backward compatible (with a method like RecusiveAssociate()).
Would you mind to implement this and mail me this patch?

Cheers, Fons.



On Fri, 2002-02-08 at 18:53, Brett Viren wrote:
> Hi,
> 
> The need to use TGPopupMenu::Associate() makes it very difficult to
> construct any hierarchical menus since you have to know the top level
> widget (usually a TGMenuBar) in the context of each submenu creation.
> 
> It also makes it impossible to create a (working) menu hierarchy with
> out knowing where it will be used (ie, what TGMenuBar will eventually
> hold it).
> 
> I think the simplest solution is to have TGPopupMenu::Associate()
> recursively descend and call Associate() on all of its menu entries
> which are also TGPopupMenus.  This way a menu hierarchy could be built
> up, independent of where it will be used (data encapsulation!), and
> then the object which creates the top level menu can call Associate()
> with the parent object, and have this trickle down the hierarchy.
> 
> Alternatively, but probably a lot more work, is to pass the parent
> menu to a submenu's Associate() and then have TGPopupMenus know how to
> forward events up to the top level widget.
> 
> Comments?
> 
> -Brett.
> 
> 
> 
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