Re: NSCollectionView mouseDown/drag is really slow.
Re: NSCollectionView mouseDown/drag is really slow.
- Subject: Re: NSCollectionView mouseDown/drag is really slow.
- From: Lee Ann Rucker <email@hidden>
- Date: Tue, 07 Feb 2012 10:52:11 -0800
On Feb 7, 2012, at 7:47 AM, Robert Monaghan wrote:
> Hi Everyone,
>
> I have just read all of the posts that I can find about the NSCollectionView and selecting an item (or items) for a drag operation. As others have pointed out, the selection takes about 1 second for a drag operation to be processed. This is a real sore spot when using the NSCollectionView in my app. My beta testers are actually logging this as a bug.
>
> Is there a technique that can be done in -mouseDown: to speed up the time for a drag operation? Or am I stuck with this?
>
> Thanks!
I've done a lot of digging into it and haven't found anything; NSCollectionView does all the processing in a loop triggered by mouseDown: instead of doing the mouseDragged:/mouseUp: approach, and replicating the entire mouseDown: in a subclass is not really viable. It is better in Lion and the users who filed bugs against my app in Snow Leopard seem happy with Lion.
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