I played around with what Uli seemed to be hinting at, and indeed it
does seem that NSOutlineView is not particularly thread safe. If you
update the content for the NSTreeController that is the data source
for the outline view outside of the main thread it blows up as I
described, and does so pretty consistently. Once I forced the update
to be done only on the main thread the issue went away.
Jeff
On Oct 3, 2008, at 10:48 PM, Jeff Wilcox wrote:
Not explicitly, but maybe. This seems to be taking place when the
content for the NSTreeController is changing (explicitly) in one
thread, causing a reload in the outline view, and in another thread
the NSOutlineView's drawrect is getting called. I can't say for
sure that this accounts for all of the cases but that seems like a
common theme.
Thoughts?
On Oct 3, 2008, at 6:10 PM, Uli Kusterer wrote:
On 04.10.2008, at 03:00, Jeff Wilcox wrote:
I seemed to be able to make this go away by subclassing the
outline view and locking it down before starting a reload or
evaluating the number of rows (found mostly by lots or trial and
error) with the following:
Wait, you're not calling numberOfRows and reloadData on an outline
view from another thread, are you?
Cheers,
-- Uli Kusterer
"The Witnesses of TeachText are everywhere..."
http://www.zathras.de
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