Re: NSTextView causes lockups when appending too quickly and/or scrolling
Re: NSTextView causes lockups when appending too quickly and/or scrolling
- Subject: Re: NSTextView causes lockups when appending too quickly and/or scrolling
- From: Steven Moore <email@hidden>
- Date: Tue, 3 Jun 2008 18:25:50 -0700
It looks like most of the calls are coming from [NSArray
indexOfObjectIdenticalTo:], half of which are from [NSSubTextStorage
release] and [NSTextStorage removeLayoutManager:]. I'm not exactly
sure why, as I didn't think I was directly touching the layout
manager.. is it being re-created every time I update the string or
something?
On Jun 3, 2008, at 5:51 PM, Nick Zitzmann wrote:
On Jun 3, 2008, at 6:43 PM, Steven Moore wrote:
I'm trying to use an NSTextView to display the output of a shell
script, but when my script outputs too much data, too quickly (on
the order of a dozen lines nearly simultaneously), my app gives up
with a pinwheel. I'm using an NSPipe to get the data,
readInBackgroundAndNotify to know when to put it in my view, and
[[[myTextView] textStorage] appendAttributedString:] to do the
actual view updating. After a while, when my view starts to contain
thousands of lines or so, attempting to do any scrolling causes a
pinwheel for some length of time. Any ideas on how I could do this
better?
Have you tried using Shark or Spin Control to find out why this is
happening?
Nick Zitzmann
<http://www.chronosnet.com/>
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