Re: Questions about NSMatrix and NSTableView

[Alex Perez]

Benoit Astruc wrote:
> Hi,
>
>     First let me present myself, I am a french Mac OS X user (and 
> developer). I came to GNUstep by reading the articles of Nicolas Roard 
> in Linux Magazine.
>     I have developed a few little apps that I want to port on GNUstep. 
> The first of them is WRP 
> (http://benoit.astruc.free.fr/weymery/WRP/index.html), a little support 
> app for players of Weymery (http://www.weymery.com), a french pbem.

I'm glad you have taken an interestin in porting them to GNUste and I 
thank you for taking the time to give it a shot.

>     Well, I have been able to recompile the whole app on GNUstep but I 
> have troubles with the GUI.

Yes, recompilation is the easy part, currently.
>     In my app I use some NSTableView, on Mac OS X, without coding 
> anything the user can move from one cell to the other simply by pressing 
> the down or up key. But on GNUstep it doesn't work :-(. So my question : 
> will NSTableView in GNUstep one day have this enable by default and if 
> not how can i do enable it ?

This may or may not have been a feature of the original OpenStep spec. 
It doesn't sound that difficult to implement, though, so I suggest that, 
in general, when you find minor behavioral inconsistencies between OS X 
and GNUstep implementations of a given class, you file an enhancement 
request/bugreport at 
https://savannah.gnu.org/bugs/?func=additem&group=gnustep

>     This code create the cells for one row, and in the same manner I 
> create cells for others rows if the user prefs ask for them. You can see 
> the result on Mac OS X here : 
>
>     But on GNUstep all the NSCell are created but all on the bottom of 
> the NSMatrix and only the first created appears ??? What can I do ?

As for this bug, also please file a bug report. This sounds a bit more 
like a real bug, something that's more serious and probably wrong on our 
side.

>     Well enough of my problems for this mail, one thing which hurt 
> GNUstep is the lack of applications. One way to have more apps would be 
> to port a lot of them from Mac OS X to GNUstep, so I think it would be a 
> good idea to make it easy for Mac OS X developers to port their apps.

Yes, I agree with you on this point, but the only way to find these 
implementation differences is to attempt to port things and discover the 
differences/inconsistencies, so thanks for bearing with us. The more of 
these inconsistencies we discover, the fewer there will be in the future 
for porters who follow in your footsteps!

Cheers,
Alex Perez