🚀 go-pugleaf

Tim McClarren writes
| I am experiencing a problem with the NXBrowser class under
| 3.0.  In effect, the manual page says to use the method "setCellClass:" to
| set the class of the cells that the Browser is to create inside the
| new columns it makes.  I then use the "addRow" method of class Matrix
| and it seems that the new cells are in fact NOT of the class I had
| specified.  I am subclassing NXBrowserCell, so that isn't the problem
| I don't think.  How do I get NXBrowser to behave properly without going
| around it's back and setting the cell prototype in the Matrix like the
| documentation specifically warns against doing?

I posted the answer to this on Sep 14, but it was perhaps obscured among some  
other answers - here is a short recap:

After MUCH experimentation under 2.1, I found that -appDidInit: and  
-setBrowserOutlet: were not reliable places to make the -setCellClass: call.  I  
subclassed NXBrowser and included the following class method:

+ initialize
{
	[super initialize];
	[NXBrowserSub setCellClass:[NXBrowserTextFieldCell class]]; // bogus?
	[self setCellClass:[NXBrowserTextFieldCell class]];
	return self;
}

This code looks redundant, but that is because I never went back to look at it  
until today.  I guess the old adage: "don't fix it if it ain't broke" applies  
here.  I would assume that either line would suffice, but I haven't tested  
anything but what appears above.

#mount _soap_box
This is a prime example of how NeXTanswers is nearly useless.  appkit.827 says  
to -setCellClass inside -initFrame:, appkit.816 says to -setCellClass in  
-appDidInit:, appkit.761 says that you must -setCellClass in +initialize  
because -init is too late, implying that -appDidInit would be far too late.  It  
took a great deal of experimentation and searching to figure out what worked.   
Of course the simpler approaches didn't work and they were what I tried first.
#dismount _soap_box
-- 
Brian Willoughby	Software Design Engineer, BSEE NCSU
BrianW@SoundS.WA.com	Sound Signal Processing Software and Consulting
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