Re: PDFView focus ring
Re: PDFView focus ring
- Subject: Re: PDFView focus ring
- From: Graham Cox <email@hidden>
- Date: Sun, 05 Feb 2012 15:10:25 +1100
On 05/02/2012, at 12:20 PM, Quincey Morris wrote:
> The one issue this doesn't solve is that of making room around the view to draw the focus ring. If one or more edges of the view are flush with the edge of the window, the exterior ring looks ugly.
True, though if all edges are flush with the window, or an enclosing scrollview, it's not visible at all. The views I've done this for don't work that way so I didn't address the problem. I imagine the reason many views leave the whole focus ring drawing to you is that there is no single solution for whether it's drawing inside or outside.
> I think you also need to force an update when the app is deactivated. The window is still the key window, but the focus ring shouldn't be drawn.
What I usually do is have an 'active' state that is ANDed with the focus being true to determine whether to draw the ring. Then the focus ring goes away whenever inactive, including when the window isn't key but the app is still active. Usually other elements in the view would also be interested in that state (even if only to use a grey highlight instead of colour, for example). Of course you have to add additional code to make that refresh happen when the active state changes.
--Graham
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