Re: How to save and restore NSScrollView scroll position?
Re: How to save and restore NSScrollView scroll position?
- Subject: Re: How to save and restore NSScrollView scroll position?
- From: James Walker <email@hidden>
- Date: Fri, 02 Apr 2010 15:33:25 -0700
On 4/2/2010 1:47 PM, Quincey Morris wrote:
On Apr 2, 2010, at 13:15, James Walker wrote:
I have an NSScrollView containing an NSTableView whose content is
managed by an NSArrayController. I have a situation where I need to
temporarily set the array controller's content to nil, mess with the
content, and then hand it back to the array controller, and I'd like to
preserve the scrolling position. I thought I could just get the value of
the NSScroller before, and set it back after, but that results in the
scroll bar being out of sync with the actual scrolling state of the
table. How can I do it?
Maybe something like this (typed in Mail):
clipOrigin = tableView.enclosingScrollView.contentView.bounds.origin;
... change the table then put it back again ...
[tableView.enclosingScrollView.contentView scrollToPoint: clipOrigin];
This first line is kind of a guess, based on the documentation for 'scrollToPoint:'.
When I tried that, the table was in the right position, but the scroll
bar was wrong. If I do BOTH your trick and what I originally tried with
the NSScroller value, then it seems to work. Thanks.
--
James W. Walker, Innoventive Software LLC
<http://www.frameforge3d.com/>
_______________________________________________
Cocoa-dev mailing list (email@hidden)
Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden