> Where would you observe changes to data? I think you should worry about one thing at a time (ie, leave the animation part for another day and concentrate on your bindings machinery first). Check out this page:
http://homepage.mac.com/mmalc/CocoaExamples/controllers.html Great examples of Bindings in action. You'll be interested in the "Graphics Bindings" and the "Manual Bindings" examples as they cover (among other things) the kind of approach you're likely to want. Hooking in the animation (because as you said, things can change) would be done taking the examples' approaches into account. Specifically, you'd handle the animation as you would without bindings ... only it's triggered within your observation code. You have a chance to examine the 'old' and the 'new' there and respond in kind. -- I.S. _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) 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]