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Re: NSView autoresizing
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Re: NSView autoresizing


  • Subject: Re: NSView autoresizing
  • From: Andy Lee <email@hidden>
  • Date: Tue, 3 Apr 2007 17:56:39 -0400

On Apr 3, 2007, at 5:04 PM, Cathy Shive wrote:
The view stays centered until i
resize the window smaller than the view.  Then, when I expand the
window again, the view becomes stuck to one of the window's sides.  If
I repeat this action over and over, the view will unstick and stick to
different sides of the window.

It's a limitation of springs and struts as a way of specifying resize behavior. In your case, the superview scales the gaps around the subview to preserve their relative proportions. When your view hit the edge of the window (or, more precisely, the edge of its containing view, which was the content view of the window), its distance from that edge became zero. Thereafter, all scaling of that gap continued to return zero, so the subview stuck to that edge.


AFAIK the only way around this is to either give the window a minimum size that prevents the problem, or code your own workaround, as you did.

When I ran into the problem with *two* subviews of a superview that were getting mushed together, I wrote a custom view class to use as the superview. My custom view remembers the margins around and between its subviews, in its -awakeFromNib method. If you think this might be useful, it's in the source for AppKiDo (easy to Google) and it's called DIGSMarginView. It's not intended to be general-purpose -- it was just for my one particular need -- but anyway, you're welcome to it.

--Andy

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References: 
 >NSView autoresizing (From: "Cathy Shive" <email@hidden>)

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