On Mon, Feb 25, 2013, at 10:46 PM, Rick Mann wrote:
> Well, it's closer to working, but still not correct. If I don't pre-size
> the window, it never gets resized, even though all the constraints are
> above 500. Vertically it seems to be perfectly hugging my labels
> (verified by changing the font size in IB without re-adjusting the views
> in IB). But horizontally it's still not hugging. It looks like the labels
> aren't shrinking horizontally enough.
>
> The fixes space between the two labels also isn't the 5 it's specified to
> be.
>
> Frame: {{288, 0}, {96, 16}}
> view1: {{2, 1}, {34, 14}}
> view2: {{35, 1}, {59, 14}}
>
> Seems to be -1, for some reason.
You must still have an underspecified system of constraints in the
horizontal direction. Unfortunately, your description of your constraint
system lacks sufficient detail for debugging, which is already difficult
to do in textual form.
Graphics really are the best. You can use -[NSView
constraintsAffectingLayoutForOrientation:] to get an array of all(*) the
constraints determining a view's layout in that direction. Pass that
array to -[NSWindow visualizeConstraints:] and you get a big pink debug
window attached to your own, and all the constraints you passed will be
drawn on top of your window. If your layout is ambiguous, there will be
an "Exercise Ambiguity" button you can click to help you figure out
what's missing.
(*) It's not guaranteed to return all the constraints. But I've yet to
see it fail to return a constraint.
--Kyle Sluder
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