Re: box system

[Helge Hess]

Hi Nicola,

great explanation. Of course the "width-expandable" thing can be easily 
discovered by trying out and indeed we only set the edges to be 
expandable. Sorry for mentioning otherwise.

So the following applies:

Nicola Pero wrote:
> if the buttons do not expand (ie, if you set the buttons autoresizing mask
> to NSViewMinXMargin | NSViewMaxXMargin, but no NSViewWidthSizable), then
> the button should not overlap, and the distance should be constant in
> time.

It is that way for some time, until the bug creeps in.

> Normally, if you want to check for rounding errors, you should resize the
> window a lot, then return it to the original size.  If the buttons return
> to the original position, there should be no rounding error.  If on OS X
> the buttons do *not* return to the original position, then well yes it's
> not just a weak API which can't manage serious autoresizing ... it's also
> a deadly broken implementation ... but I don't think it's that broken -
> seriously, it can't be. :-)

It is. The effect is, that the buttons start "jumping around". For some 
time it works well (as you describe), but at some point (rounding error 
?), the buttons are positioned totally wrong.

> Anyway - I'm of course curious (I don't have a OS X to test) to know if
> it's really broken or not. :-)

It is. Can you try on Richard's Powerbook ?

BTW: Is still don't understand why you don't override addSubview: for 
layout-containers since all subviews should be positioned by the 
container ? But I still have you read your other mail ;-) Eg that would 
do very nice with IB, since subviews dropped into a box would be 
autoresized :-)

Greetings
  Helge