Re: How to get data to an overridden function (NSMatrix->NSCell)

FROM : I. Savant
DATE : Fri Aug 11 17:21:19 2006

You could subclass NSMatrix and make it aware of the chosen color. 
When your cell's -highlightColorWithFrame... method is called, ask 
the "controlView" (which should be your subclassed NSMatrix) for the 
right color and use it as needed.

--
I.S.


On Aug 11, 2006, at 10:13 AM, Aaron Kobayashi wrote:

> Hi everyone,
>
> I'm overriding
>
> - (NSColor *)highlightColorWithFrame:(NSRect)cellFrame inView:
> (NSView *)controlView
>
> in a subclass of NSTextFieldCell which is contained in an NSMatrix 
> to change the highlight color.  This works stupendously. With the 
> machinery in place, I need to find a way to pipe data in to the 
> routine to make a decision on the color to highlight with.
>
> Essentially, I want to detect a mouse down on the matrix and store 
> a color.  Until mouse up, I want the highlightColorWithFrame 
> routine to return the color picked in the mouse down routine.  This 
> seems like a trivial thing to do, but I haven't been able to find a 
> way to pipe data into this method.
>
> Any suggestions?  Certainly other people have dealt with a similar 
> problem.
>
> Thanks,
> Aaron K.
>
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