Re: replacing NSViewAnimation with CoreAnimation

FROM : Scott Anguish
DATE : Wed Nov 21 23:17:31 2007

On Nov 21, 2007, at 4:05 PM, Christoph Vogelbusch wrote:

> Well the problem/question is:
> Is NSViewAnimation SLOWER then CoreAnimation (because it uses no 
> layers).
> If so I would use NSViewAnimation for Tiger and CoreAnimation for 
> Leopard.
> But there is no reason why Apple didn't rewrite some of the 
> NSViewAnimation code for Leopard. I'm technically it's teh same 
> thing I'm doing here. Intercepting ViewAnimations put them in a 
> animation context and fire them together.
>
> SO the Question is: Is NSViewAnimation under Leopard as fast as 
> CoreAnimation (and uses layers) or not?


As Nick said  NS*Animation isn't related to Core Animation.

View animation has never had a goal of running at a specified number 
of frames per second as far as I know. Core Animation on the other 
hand...

View animation is intended for resizing or moving views around in a 
UI, not animating all sorts of bits.

That said, no I don't believe it has been rewritten to use Core 
Animation. I doubt that NSViewAnimation changed at all to use the 
animatable properties support (which is where this would have migrated 
to, had it migrated.. not to Core Animation).

But the person who could definitively say isn't likely to read this 
message this week what with Thanksgiving and all (or perhaps ever, 
since there is no guarantee that anyone at Apple will read anything on 
the list)

Of course if you really want to know if it uses it you could always 
use the debugging tools.