Hi BJ, On Fri, May 21, 2010 at 2:44 PM, B.J. Buchalter <[email protected]> wrote:
> I read the NSImage and Cocoa drawing guide docs, which tends to indicate > that calling drawInRect:fromRect:operation:fraction: on an NSImage will > cause it to create a cached image rep that matches the scaled image so that > the next time it is drawn it does not need to be scaled again. > The docs haven't fully integrated new info from 10.6, when NSImage changed a bunch. Take a look at the AppKit release notes<http://developer.apple.com/mac/library/releasenotes/cocoa/appkit.html> . > > That is not what I am seeing here, and the scaling is definitely taking a > nontrivial amount of time when redrawing my views. I have played around with > setting the caching and scaling on the NSImage, but it doesn't appear to be > having any impact (the internal image rep for the image never changes). > Could you attach a test app please? There's more than one thing that could be the issue. > > What is the proper way to ensure that the NSImage is cached to match the > required drawing size? Do I need to build my own cache? > > Thanks! > > B.J. Buchalter > Metric Halo > http://www.mhlabs.com > > > > _______________________________________________ > > Cocoa-dev mailing list ([email protected]) > > Please do not post admin requests or moderator comments to the list. > Contact the moderators at cocoa-dev-admins(at)lists.apple.com > > Help/Unsubscribe/Update your Subscription: > http://lists.apple.com/mailman/options/cocoa-dev/kenferry%40gmail.com > > This email sent to [email protected] > _______________________________________________ Cocoa-dev mailing list ([email protected]) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [email protected]
