Re: Odd Behaviour with CALayer
Re: Odd Behaviour with CALayer
- Subject: Re: Odd Behaviour with CALayer
- From: Ajay Sabhaney <email@hidden>
- Date: Fri, 18 Jun 2010 15:01:03 -0600
Well, the problem seems to have been fixed.
I tried replacing every instance of MRWorkspaceItemLayer with a regular CALayer instance, and it seemed to work fine, meaning my problem was actually in the MRWorkspaceItemLayer subclass. Seemed everytime I would unselect then select an item, the MRWorkspaceItemLayer would be destroyed, and then the message "expecting model layer not copy: MRWorkspaceItemLayer" would come up in the console. So I overrided -initWithLayer: and -hitTest: , and now it seems to be fine.
Thanks for your comments
-AJ
On 2010-06-17, at 7:35 PM, Kyle Sluder wrote:
> 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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