Re: Problem with tabViews in Renaissance

[Fred Kiefer]

On 14.10.2012 07:33, Germán A. Arias wrote:
> Using Renaissance with gnustep update to svn, the tabviews don't work as
> expected. Just run the tabview examples to see the problem.

I am able to reproduce this problem here and the reason seems to be a 
side effect of the changes Greg committed a few days ago. Now when 
adding the first item to a tab view this item gets selected by calling 
the proper method. Before that the code just set the selected item 
index, which is now gone (Or rather should be gone but isn't). If we 
remove this call things are back to normal.
Calling that method results in the frame of the tab view item being set 
to the, still negative, content bounds of the tab view. This also 
happens on Apple and Nicola has a comment and a workaround for this in 
his Renaissance tab view code. But for some reason that workaround isn't 
sufficient for GNUstep.
Looking more deeply into the Renaissance code I now understand that 
sizeToFitContent gets called for NSTabView at the end of the 
unarchiving. And the code there looks OK, still it results in wrong 
values for the subviews of the tab items. Most likely it's the negative 
size that we assign to some views in between that is causing the 
problem. But at the moment I don't see an easy way to resolve this.

Fred