cocoa - Xcode IB: Inexplicable area? -


i wondering if knew why ib has inexplicable high lighted areas on odd nib here , there..

below example:

unexplained area within red highlighted area.

what mean light area within area marked out in red...

there's no views below split view, there's no bounds correspond , far there's nothing complaining "misplaced views" etc... it?

update: worked out when last happened that weird "area" same size rightmost nsview (whether embedded in nssplitview or 2 nsviews side side.

many thanks

adrian s

it's due bug in xcode interface builder. , in experiments it's been predictable according following explanation:

the lighter colored area intended highlight container view of current selection. have nstextfield within nsbox, , select text field, box highlighted. it's purpose dim out outside scope can make constraints in.

you can see it's dimming down of outside box, if nothing selected, whole ib view port displayed in lighter shade.

the bug when make selection, ib clips area of container view what's visible, , adds highlight rounded box 8 pixels larger. when scroll or resize ib viewport, clipped area isn't updated. rounded highlight box seen not cover whole of container view, clipped part (plus 8 pixels) of it.


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