Re: Custom control and cells
Re: Custom control and cells
- Subject: Re: Custom control and cells
- From: Georg Seifert <email@hidden>
- Date: Sat, 10 Jul 2010 20:07:42 +0200
Am 10.07.2010 um 03:42 schrieb Michael Ash:
> On Fri, Jul 9, 2010 at 6:22 PM, Georg Seifert <email@hidden> wrote:
>> Hi,
>> The thing is, I want to replicate the NSCollectionView but using cells instead of views. The NSCollectionView has a lot of problems like performance and I couldn’t find a way to get the rect of the view of an item (both fixed in Snow Leopard but I have to support Leopard).
>
> If I were writing this today, I would use views. I would make it so
> that it only had enough subviews to occupy the currently visible area.
> The rest of the collection view would be empty. As the user scrolled,
> I would create new views for the newly exposed items and add them
> dynamically. If view creation is too slow for this, I would implement
> some sort of view reuse mechanism that could load new data into the
> views that have scrolled off screen. This is basically how UITableView
> works on the iPhone, and if it can get good performance on that
> platform, you ought to be able to do great on any Mac that can run OS
> X.
>
I understand.
Jumping through some more holes, I did manage to implement most things I needed.
On thing I can’t figure out, is how to implement extending the selection with the shift key. Only the command modifier works by default.
Georg
> Mike
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