Re: NSPopUpButton

[Pascal Bourguignon]

> Date: Tue,  9 Oct 2001 19:54:23 +0100
> From: Georg Fleischmann <georg@vhf.de>
> 
> Hi Axel, Hi Fred,
> >> Could anyone with access to MacOSX ask Georg for
> >> his test program and report the results on this mailing list?
> >send it to me and I can try it out.
> Actually, I have used the app, which I am porting to GNUstep,
> but now I have modified the popup example to do the tests.
> The attached source has two popups, one with the action set to
> NSPopupButton and one with the action on menu items.
> It NSLogs the sender of the action.
> Running the app on GNUstep will show most of the problems with popup buttons:
> - disabled items in one of the popup menus
> - returned index is wrong
> Georg
>    Press C-c C-c here for "application/zip; name=PopUpButtons.tar.gz; 
> x-unix-mode=0644" data


On the latest CVS GNUstep:

[pascal@thalassa PopUpButtons]$ PopUpButtons.app/PopUpButtons 
All the items in the "PopUpButton action" pop-up are disabled.
Oct 09 23:09:14 PopUpButtons[26520] buttonAction: sender = <NSMenuItem: 823f1c8>



On OPENSTEP 4.2:

[pascal@despina PopUpButtons]$ PopUpButtons.app/PopUpButtons 
Oct 09 23:27:04 PopUpButtons[368] buttonAction: sender = <NSPopUpButton: 
0xbaa20> index = 0
Oct 09 23:27:05 PopUpButtons[368] buttonAction: sender = <NSPopUpButton: 
0xbaa20> index = 1
Oct 09 23:27:07 PopUpButtons[368] buttonAction: sender = <NSPopUpButton: 
0xbaa20> index = 2
Oct 09 23:27:09 PopUpButtons[368] buttonAction: sender = <NSMatrix: 0xbe458>
Oct 09 23:27:11 PopUpButtons[368] buttonAction: sender = <NSMatrix: 0xbe458>
Oct 09 23:27:12 PopUpButtons[368] buttonAction: sender = <NSMatrix: 0xbe458>



I hope to be able to present results on MacOSX tomorrow.


Note about NSMatrix in NSPopUpButton:

   - in  the OpenStep  Specification dated  1994, NSPopUpButton  has a
     -(NSMatrix*)itemMatrix  method,  and  the  items  are  NSMenuCell
     instances.

   - in the  OPENSTEP 4.2, MacOSX and  actual GNUstep implementations,
     NSPopUpButton lost  this itemMatrix method and the  items are now
     higher level  NSMenuItem. MacOSX has a  NSMenuItemCell class, but
     OPENSTEP 4.2 did not have it (at least, not publicly).

Therefore  I  would  say  that  NSMatrix  should  not  appear  in  the
NSPopUpButton  API,  and  the  sender  of the  action  should  not  be
NSMatrix. I note that MacOSX  implementation of NSMenu does not have a
NSMatrix but a NSMutableArray of NSMenuItem.


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