On 25 Jun 2011, at 7:05 PM, Ari Black wrote:
> @implementation SpecialMatrix
>
> - (id)initWithFrame:(NSRect)frameRect mode:(NSMatrixMode)aMode
> prototype:(NSCell *)aCell numberOfRows:(NSInteger)numRows
> numberOfColumns:(NSInteger)numColumns {
> int x;
> x = 0; // I put a breakpoint here
>
> return self;
> }
>
> @end
You don't get to this point, so it's not the problem you have now, but I assume
your real code invokes [super initWithFrame:...]?
> This is in the implementation of the class that controls the window the
> browser is in:
>
> - (void)awakeFromNib {
> [browser setMatrixClass:[SpecialMatrix class]];
>
> [browser loadColumnZero];
>
> NSMatrix *matrix = [storyLine matrixInColumn:0]; // <- return nil
> matrix = [storyLine matrixInColumn:1]; // <- returns nil
> }
First step: Break in -awakeFromNib and verify that browser is not nil.
Second step: Maybe an NSBrowser doesn't instantiate any matrices until you have
responded to browser:numberOfRowsInColumn: with a non-zero value?
— F
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