Re: -[NSMenu popUpContextMenu:withEvent:forView:] crashing in __isSystemFont on 10.5.2
Re: -[NSMenu popUpContextMenu:withEvent:forView:] crashing in __isSystemFont on 10.5.2
- Subject: Re: -[NSMenu popUpContextMenu:withEvent:forView:] crashing in __isSystemFont on 10.5.2
- From: Aki Inoue <email@hidden>
- Date: Fri, 7 Mar 2008 14:11:04 -0800
One of the biggest changes in Leopard is that NSFont instances are now
under normal memory management rules.
They deallocate/finalize just as other objects.
Up until Tiger, they never got deallocated (and was one of the biggest
headaches in resource management).
This is an excerpt from AppKit release note.
Aki
NSFont
The AppKit framework no longer retains NSFont instances, and they are
subject to the standard retain/release scheme. For debugging purpose,
you can use the NSDisableFontDeallocation key. When the value is YES,
font instances are not deallocated. Also, by setting NSFontDebugLevel
to non-0 value, memory space previously occupied by NSFont is more
aggressively reclaimed to allow finding over-released instances easily.
On 2008/03/07, at 13:57, Ben Lachman wrote:
EXC_BAD_ACCESS. But I think I found the issue. I wasn't retaining
the font returned by menuFontForSize:. What threw me off was that
this never caused a problem in Tiger (perhaps it is a static
instance that is returned there) but did on Leopard. No idea of the
reason for the change though.
Thanks,
->Ben
--
Ben Lachman
Acacia Tree Software
http://acaciatreesoftware.com
email@hidden
740.590.0009
On Mar 7, 2008, at 4:49 PM, Kyle Sluder wrote:
On Fri, Mar 7, 2008 at 4:31 PM, Ben Lachman <email@hidden> wrote:
In my custom view I call [NSMenu popUpContextMenu:contextMenu
withEvent:theEvent forView:self] during mousDown: in some cases. It
sometimes crashes during this call in [NSFont __isSystemFont]. The
menu I'm giving it has multiple sizes of the default menu font in
it.
Any ideas why this is happening? Same code works fine on Tiger.
What's the actual crash?
--Kyle Sluder
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