Re: Clipping subview drawing to arbitrary path or image (iPhone)
Re: Clipping subview drawing to arbitrary path or image (iPhone)
- Subject: Re: Clipping subview drawing to arbitrary path or image (iPhone)
- From: David Duncan <email@hidden>
- Date: Fri, 15 Jan 2010 15:53:29 -0800
On Jan 15, 2010, at 2:31 PM, Rick Mann wrote:
> Hi. We have a requirement to clip a set of subviews' drawing to an arbitrary path or clip image specified by a containing (parent) view. Is there any way to accomplish this?
Do the subviews move? If not, it would seem that the best way to deal with that would be to pass the same clip to each of the subviews and have them apply that clip before they draw (with proper transforms of course).
If not, this could be done (with performance penalty) using the layer's mask property. Simplest way I can think is to make a new layer, assign the contents of the parent layer to that new layer's contents, then assign that layer as the mask of all subviews. This may require a bit of futzing around to get right however.
--
David Duncan
Apple DTS Animation and Printing
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