Re: intercepting NSBrowser multiple selection extension with shift down/up arrow
Re: intercepting NSBrowser multiple selection extension with shift down/up arrow
- Subject: Re: intercepting NSBrowser multiple selection extension with shift down/up arrow
- From: "Martin Redington" <email@hidden>
- Date: Tue, 14 Oct 2008 05:45:13 +0100
On Tue, Oct 14, 2008 at 5:25 AM, Andy Lee <email@hidden> wrote:
> On Oct 13, 2008, at 11:16 PM, Martin Redington wrote:
>>
>> I've got an NSBrowser, and a secondary view whose value depends on the
>> current selection in the NSBrowser.
>
> [...]
>>
>> I seem to be capturing everything so far, except for the case where
>> the selection is extended by holding down shift and the up or down
>> arrow key.
>
> It sounds like you're subclassing NSMatrix and using -setMatrixClass: on the
> browser?
Yep. Sorry, I should have made that clearer. I have a custom NSMatrix class.
It was more by trial and error than anything else that I ended up
over-riding the NSMatrix methods - they were just the ones that seemed
to work.
> You might be able to get it to work by also overriding
> -highlightCell:atRow:column:, but this seems like a lot of work.
That sounds nasty. I really just want to post this notification
whenever the selection changes.
> How about if you leave the matrix class alone and do [myBrowser
> setSendsActionOnArrowKeys:YES]? Then give the browser a target and action,
> and in the action method do whatever you have to do.
That sounds promising, although a bit disappointing and possibly still
a tiny bit hacky.
Surely it shouldn't really be that hard to capture/intercept selection
changes - to have to resort to trial and error over-riding of
selectXXX, et al. methods is a bit irksome.
I'd kind of hoped that I'd simply missed some method that I could
over-ride to cover my broken cases.
> I would think there's an even simpler solution using bindings, but I don't
> know bindings so I can't help you there.
I'm not using bindings in this context, although if anyone does know
it might be of interest for the record.
cheers,
m.
>
> --Andy
>
>
>
>
--
http://www.mildmanneredindustries.com/
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