CATransition push without fade

Question

I\'m making a navigation controller class for Mac OS X.

I want to replace the current view with a kCATransitionPush animation.
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Answer 1

The best way I've found to get smooth Core Animation transitions that works regardless of whether the view supports CA or not is to do the following:

1. Create an image of the view you are trying to animate, using NSView -cacheDisplayInRect:toBitmapImageRep or a similar method
2. Put that image in an NSImageView
3. Layer back the image view, which will draw fine without glitches when layer backed
4. Add the image view as a subview over the view that you are trying to transition
5. Animate the image view frame using NSView's animator proxy
6. Remove the image view once the animation has completed