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Re: Odd Behaviour with CALayer
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Re: Odd Behaviour with CALayer


  • Subject: Re: Odd Behaviour with CALayer
  • From: Kyle Sluder <email@hidden>
  • Date: Thu, 17 Jun 2010 18:35:20 -0700

On Thu, Jun 17, 2010 at 5:09 PM, Ajay Sabhaney <email@hidden> wrote:
> -The initializer initWithLayer: of my subclass of CALayer, MRWorkspaceItemLayer is being invoked, even though I never explicitly invoke this

The documentation for -[CALayer initWithLayer:] describes how this
method is used to create the layers for the presentation tree.

>
> -For when I handle the mouse down event, I tried changing my code from:
>
> CALayer *layer = [_rootLayer hitTest: where];
>
> to
>
> CALayer *presLayer = [_rootLayer presentationLayer];
> CALayer *layer = [presLayer hitTest: where];
>
> but now [[_rootLayer sublayers] indexOfObject:layer] is returning NSNotFound,but I'm still looking in to this part...

Of course, if _rootLayer is a model layer, it can't contain a
presentation layer as a sublayer.

Have you tried breaking on NSLog or perhaps write, to get a backtrace
for the specific line this message is coming from?

--Kyle Sluder
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  • Follow-Ups:
    • Re: Odd Behaviour with CALayer
      • From: Ajay Sabhaney <email@hidden>
References: 
 >Odd Behaviour with CALayer (From: Ajay Sabhaney <email@hidden>)
 >Re: Odd Behaviour with CALayer (From: David Duncan <email@hidden>)
 >Re: Odd Behaviour with CALayer (From: Ajay Sabhaney <email@hidden>)

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