NSOutline does actually preserve selected item if you (fully)
implement persistentObjectForItem: and itemForPersistentObject: That
might be overkill for what you're looking for though, and/or might
not do it the way you want....
Sandy
On 17 Jan 2008, at 8:52 PM, John Stiles wrote:
OK, you've got it!
rdar://5692750 [NSOutlineView] Selection should track items,
not rows
Thanks for your interest here.
I think it would make sense to have this be NO for existing outline
views, but in IB, newly-created outline views should set the
property to YES by default. That way, you won't break any old apps,
but newly written code would be able to take advantage of the
improved behavior. And of course, it'd be a checkbox in the IB
attributes so you could enable it if you want to use it with
existing code.
Corbin Dunn wrote:
On Jan 17, 2008, at 10:37 AM, John Stiles wrote:
Ooh, really? I figured that would be a problem for backwards
compatibility. I guess it could be an optional thing though...
[outlineView setSelectionTracksItems:YES] or something.
We have ways around compatibility problems :) (generally, they are
checks to see what version of the OS you link against). But, for
something like this, I'd probably make it opt-in, with a new
property.
I've actually filed a bug against the docs already, saying that
they should spell out the behavior better:
rdar://5692703 [Docs] NSOutlineView docs don't discuss
preservation of selected rows If you want me to file a separate
feature request against NSOutlineView as well, I will happily do it.
Please do log a new bug; I think both things are important to get
-- a documentation update (which happens more frequently than OS
releases with new API), and new API.
corbin
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