Attaching subclass of NSImageCel to a NSMatrix

FROM : Angelo Chen
DATE : Sat Jun 24 13:25:23 2006

Hi,

I use IB to create a NSMatrix containing of
NSImageCell, at runtime I use NSImageCell's setImage
to set the pictures, everything works. Now I like to
attach a subclass of NSImageCell to the NSMatrix, as a
testing I  made following changes to the program:

// ClipImage.h
@interface ClipImage : NSImageCell {
}

// ClipImage.m
- (void)setImage:(NSImage *)image
{
}

and in my Controller class I had:

- (void) awakeFromNib
{
  [myMatrix setCellClass: [ClipImage class]];
}

with the above changes I was expecting no image to be
displayed in the NSMatrix, but it still displays, why?
am I attaching the subClass wrongly?
Thanks.

Angelo




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