Re: Understanding layer-backed views
Re: Understanding layer-backed views
- Subject: Re: Understanding layer-backed views
- From: Scott Anguish <email@hidden>
- Date: Wed, 22 Jun 2011 03:02:19 -0400
> Yep, I'm aware of the setWantsLayer/setLayer order making a difference.
>
> In my case I want a layer-hosting view, not a layer-backed view.
>
> However, my question isn't really about that, but about what is done when you check the box next to the layer in Interface Builder, in the 'setWantsLayer' panel. Does this provide layer backing or layer hosting? My thoughts were that is provides layer hosting, but I'm not 100% sure. Proceeding on the basis that this is the case, it seems to work.
>
layer-backed.
>
>> Again this is not in line with my expectations, which is that the frame of a sublayer is expressed in the coordinate system of its superlayer, not the underlying window.
>
> I found the cause of this issue, which was that in my layer delegate, I was not saving, setting and restoring the context passed to drawLayer:inContext:. I was assuming that the context was set, but having found a code snippet in the docs that indicated it wasn't, I added these calls and my graphics are drawing in the right place now.
>
great!_______________________________________________
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