Re: best time to alter GUIs

FROM : Ken Thomases
DATE : Mon Mar 03 20:05:20 2008

On Mar 3, 2008, at 11:12 AM, Daniel Child wrote:

> On Mar 1, 2008, at 6:15 AM, Ken Thomases wrote:
>

>> Does your init method do anything else other than calling [super 
>> initWithWindowNibName:]?  In particular, if it calls [self 
>> window], that forces the loading (and awakening) of the NIB in 
>> order to reconstitute the window.

> My bad. I should have checked that, and assumed it simply passed 
> the address. If [self window] loads things, is there any way to 
> obtain the window's address without loading it?


That question is nonsensical.  There is no window until it's loaded, 
therefore there is nothing to have the address of.


> I found it useful to assign a (superfluous) instance variable since 
> I was doing so much with the window. I didn't want to have to use 
> [self window] each time, especially if [self window] actually tries 
> to load each time.


[self window] returns the window, loading it if necessary.  That is, 
it only loads it once.  This is all documented in the 
NSWindowController docs.  You can cache this value if you want, but 
that's redundant since NSWindowController is already "caching" it for 
you.  Also, you then run the risk of forcing the window to load 
before it's strictly necessary, as you've discovered.

Cheers,
Ken