Re: Why isn't sizeToFit being called?
Re: Why isn't sizeToFit being called?
- Subject: Re: Why isn't sizeToFit being called?
- From: Ricky Sharp <email@hidden>
- Date: Tue, 7 Dec 2004 19:39:42 -0600
On Dec 7, 2004, at 5:29 PM, Ricky Sharp wrote:
Some of my custom widgets derive from NSControl and so I provided an
implementation of sizeToFit that will do the right thing. This works
out well.
The remainder of my widgets derive from NSView. But when I implement
sizeToFit, it's never called from within IB.
I know that other NSView derivatives implement sizeToFit and they work
a-ok in IB (e.g. NSBox).
AFAIK, there's no special protocol to implement.
OK, things get even crazier. I just created a new IBPalette and
whipped up an extremely simple object derived from NSBox. By simple, I
mean that I overrode nothing except for sizeToFit.
But my sizeToFit isn't being called. What makes matters worse is that
the base classes's sizeToFit is being called instead. I know this
because the view resizes as if it were a standard NSBox.
Furthermore, I noticed several other wacky things with this simple
NSBox derivative.
I swear that deriving from Apple's widgets is evil :P
I think I may have to e-mail DTS on this one as only an IB engineer
would know what's really going on. My guess is that there's code in
there that is hard-wired to work with only specific classes.
I would have assumed that IB would have queried if a particular object
responded to sizeToFit and call that object's implementation if it
existed. But this doesn't seem to be the case.
___________________________________________________________
Ricky A. Sharp mailto:email@hidden
Instant Interactive(tm) http://www.instantinteractive.com
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