Subject: Re: NSView Redrawing Issue ...



On Wed, Mar 25, 2009 at 5:53 PM, Mic Pringle <micpringle@xxxxxxxxx> wrote:
> Hi,
>
> I've created a custom view to replicate the blue panel at the bottom
> of the iPod Summary page in iTunes. All is well except that when I add
> controls on top of this view (buttons etc) in IB, when the application
> is launched the controls have thick gray borders around them until I
> resize the window, at which point they disappear. If I then click any
> on these controls, it then reappears until I again resize the window.
>
> I know I can do [customview setNeedsDisplay:YES] but in order for this
> to work I would need to call it in every action connected to every
> control that's placed on the view, and also I'm not sure where to put
> it to get rid of the initial gray borders. Plus I want to update a
> label in the view using bindings from a CoreData object so I can
> really call setNeedsDisplay on that ??
>
> Surely there is something that I'm missing here to get the correct behavior ??

This is almost certainly due to misusing the parameter to your
-drawRect: method, as described here:

http://cocoadev.com/index.pl?DrawRect

Mike
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