Mailing Lists: Apple Mailing Lists
Image of Mac OS face in stamp
 
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Optimizing NSView Performance

I'm using OS X 10.1.

I have an NSView with a hand tool that scrolls it around. It is very slow. I've optimized much of it using some slick buffering, but I know the real problem is that the entire thing is redrawn if it scrolls in both X and Y at the same time. Scrolling in one direction is just fine.

It seems that there must be some solution to this problem, but I'm baffled. I can't figure out what methods are being called to invalidate the view (the methods are undoubtedly undocumented methods). I recall discussion on the list much in the past on this subject, but I couldn't find any real answers.

I don't care if I have to reverse-engineer undocumented methods. What will help me is:

- a list of the undocumented NSView methods
- a method for logging all messages sent to an object, using an NSProxy perhaps (just a guess, I don't know if it would work in a view hierarchy, though it should)
- an information on how the NSView class keeps track of invalidated regions
- information on the differences between 10.1 and Jaguar, if any
- any experiences with this in the past
_______________________________________________
cocoa-dev mailing list | email@hidden
Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/cocoa-dev
Do not post admin requests to the list. They will be ignored.


Visit the Apple Store online or at retail locations.
1-800-MY-APPLE

Contact Apple | Terms of Use | Privacy Policy

Copyright © 2007 Apple Inc. All rights reserved.