On Feb 23, 2012, at 6:58 AM, William Squires wrote:
> I have a custom view with an NSBox containing an NSMatrix of button cells
> (radio buttons) When I created the NSMatrix, I told it I wanted 3 of them,
> but in the view hierarchy, I can see the NSMatrix under the NSBox, but it has
> 4 button cells under it, not the three I asked for - Is this an Xcode/IB
> screw-up, or do NSMatrix's always add one extra element when making a group
> of radio buttons? Should I delete the matrix and try again? When I vertically
> resize the matrix, I always see three cells, so I don't think there's one
> hidden under there.
The third (usually first in the list, however) cell is the cell prototype, as
every NSMatrix needs a cell prototype.
> Also, even though I set the tag for each button cell (the top one is 0, the
> next one down is 1, etc...), when I connect them to my
>
> -(IBAction)baseChanged:(id)sender
> {
> int choice = [sender tag];
> switch (choice)
> {
> case 0: // number base is 16 - hexadecimal
> NSLog(@"user chose hexadecimal");
> ...
> break;
>
> case 1: // number base is 2 - binary
> NSLog(@"user chose binary");
> ...
> break;
>
> case 2: // number base is 10 - decimal
> NSLog(@"user chose decimal");
> ...
> break;
> }
> self.numberBase = choice;
> }
>
> I always get, "user chose hexadecimal"! :( (all the buttons generate an
> action, so it's not that...)
Is it not? Have you inspected what the sender object truly is? Maybe it is the
matrix, and not the cell?
> Am I supposed to connect the NSMatrix to the action, and not the individual
> cells? If so, how do I ask for the cell's tag value?
Considering that the sender is the NSMatrix: [[sender selectedCell] tag]
HTH,
Keary Suska
Esoteritech, Inc.
"Demystifying technology for your home or business"
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