Re: What changed in 10.10 scrollView / scrollPoint?
Re: What changed in 10.10 scrollView / scrollPoint?
- Subject: Re: What changed in 10.10 scrollView / scrollPoint?
- From: Gordon Apple <email@hidden>
- Date: Mon, 17 Nov 2014 14:24:19 -0500
- Thread-topic: What changed in 10.10 scrollView / scrollPoint?
I hope they haven¹t gone to layer backed views for text. If you have a
choice turn that off. We have a teleprompter app which scales formatted text
nicely on Mac, but was found to be unusable on iOS due to layer backing.
On 11/17/14 3:00 PM, "email@hidden"
<email@hidden> wrote:
> Hi, I have an app where I need to programmatically scroll the content of a
> full screen scroll view. I have always done this using scrollPoint on my view.
> I have been using this since 10.6. My view is not layer backed and has a
> single subview which is a layer *hosting* view. Now in Yosemite 10.10, this
> takes a *very* long time at 100% CPU, with a stack trace looking something
> like this: CoreGraphics`argb32_sample_argb32 + 621
> CoreGraphics`argb32_image_mark + 1696 CoreGraphics`RGBA32_image + 1156
> libRIP.A.dylib`ripl_Mark + 23 libRIP.A.dylib`RIPLayerBltImage + 1146
> libRIP.A.dylib`ripc_RenderImage + 265 libRIP.A.dylib`ripc_EndLayer + 1204
> CoreGraphics`CGContextEndTransparencyLayer + 53 QuartzCore`-[CALayer
> renderInContext:] + 1025 QuartzCore`-[CALayer _renderSublayersInContext:] +
> 479 QuartzCore`-[CALayer renderInContext:] + 1082 AppKit`-[NSView
> _layerBackedDisplayRectIgnoringOpacity:inContext:isRootView:flipContextIfNeede
> ed:] + 245 AppK
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