Re: Cocoa wizard & gurus, Help!!
Re: Cocoa wizard & gurus, Help!!
- Subject: Re: Cocoa wizard & gurus, Help!!
- From: Andrew Platzer <email@hidden>
- Date: Wed, 11 Feb 2004 14:53:47 -0800
On Feb 11, 2004, at 10:53 AM, Alexander Griekspoor wrote:
I haven't received many responses to my previous posting (one to be
precise), so I'll try it one more time. At least some people must be
able to help this poor soul. It's again about this NSImage caching
problem I have. It's quite a showstopper for our app on Jaguar. It all
comes down to one simple question: how do I draw a large NSImage
offscreen. I simply can't get it to work because of the sizelimit that
is present on the window that is created behind the scene and I get a
Can't create cache error. It's definitely a problem on Jaguar, but
also on Panther, although the limit seems to be higher there. The
reason to do this all, is to have my custom view in some cached form
to prevent unnecessary redrawing. Please help me with a solution to
the problem, or alternative ways for caching or ways to prevent
redrawing. Isn't there really a way to prevent the need of the
temporary window? I don't get it, you can have large NSImages, but you
can't draw one!?!? Help!
Is there any reason you can't break up your offscreen cache into
separate images and render the view in parts from the different cached
images?
As you noticed, the limit on offscreen image cache size was upped in
Panther. The limit is now based on Quartz limitations.
Andrew
_______________________________
Andrew Platzer
Application Frameworks
Apple Computer, Inc.
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