Re: CALayer bounds with ResizeAspect mask?
Re: CALayer bounds with ResizeAspect mask?
- Subject: Re: CALayer bounds with ResizeAspect mask?
- From: Matt Long <email@hidden>
- Date: Wed, 8 Oct 2008 08:04:19 -0600
Colin,
Not sure I completely understand that issue, but in a QTMovieLayer,
the movie is tied to the layer dimensions. If you resize the layer,
you resize the movie. The layer itself has a frame and a bounds
property. All you should need to do is grab [myMovieLayer bounds] or
[myMovieLayer frame] to get the new width and height.
float newWidth = [myMovieLayer bounds].size.width;
float newHeight = [myMovieLayer bounds].size.height;
You should also take a look at:
http://developer.apple.com/documentation/Cocoa/Conceptual/CoreAnimation_guide/Articles/LayerTreeHierarchy.html#/
/apple_ref/doc/uid/TP40006083-SW9
Specifically the part about autoresizing sublayers.
-Matt
On Oct 8, 2008, at 3:01 AM, Colin Doncaster wrote:
Hi there,
I'm using a QTMovieLayer with
[myMovieLayer setContentsGravity:kCAGravityResizeAspect];
specified.
I have a second layer that I'd like to draw on that needs to match
the resized movie that is now scaled to maintain the correct aspect
ratio. Is there a way of retrieving the resized movie bounds?
I know I can compute it myself, but it seems like there would be a
way of accessing the resized movie dimensions. I tried the
CGImageRef, but it just returns the resolution of the QTMovie.
thanks.
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