Re: Tree for NSOutlineView?
Re: Tree for NSOutlineView?
- Subject: Re: Tree for NSOutlineView?
- From: Simon Stapleton <email@hidden>
- Date: Tue, 29 Oct 2002 09:29:51 +0100
From: "Keith Pritchard" <email@hidden>
I have a data set which lends itself totally to a tree structure.
I need to shuffle it around a fair deal to get it that way, but then
it's
pretty perfectly represented by NSOutlineView.
Ok, a tree could be said to be an array of arrays, but that lacks all
the
nice methods for counting/retrieving children etc which are needed.
Is there anything out there which I could use to store my data in a
tree
suitable for giving to NSOutlineView when it asks? Anything from Omni
or
some other folks?
NSTree is really so needed.... (or it is by me at least).
Well, you could quite easily wrap CFTree. See the CoreFoundation
documentation.
Alternatively, drop me a mail and I can drop you an alpha of my bridged
tree class in a few days - I'm having trouble getting it to bridge to
unknown versions of CF at the moment, but otherwise it seems to work.
Not sure how efficient it will be for OutlineView sourcing, but it
should be more efficient than using arrays of arrays and similar.
Oh, and drop a feature request on bugreporter for Apple to bridge
CFTree. If you don't ask officially, it won't get done ;-)
Simon
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