I have an NSOutlineView on OS X 10.10. For non-group row, the indent appears to change where each row starts but the rounded rect surrounding each row always starts on the left margin. I want to modify it so that the left edge of the rectangle is indented (at least for certain children).

Existing: (pardon the ASCII-art)

( Text        )
(    Text     )
(       Text  )

Desired:

( Text        )
   ( Text     )
      ( Text  )

I tried subclassing NSOutlineView and catching frameOutlineOfCellAtRow, adding to theRect.origin.x and subtracting from theRect.size.width. This didn't seem to make a difference. I have verified that the overridden function is being called and theRect modified, but the rendered output doesn't vary.

Is there another way to do this?

(Also, is there a way to customise the rendered indent level on a per-row basis, rather than always indentationPerLevel ? )

Thanks

--
Andrew
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