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Once again the NSOutlineView

From: Andreas Heppel
Subject: Once again the NSOutlineView
Date: Thu, 12 Feb 2004 14:46:26 +0100

Hi list,
I have again stumbled across some strange behaviour in NSOutlineView. This time it has to do with reloading items. The method -reloadItem:reloadChildren is using another method called _findItem:childIndex:ofParent:. I suppose that this method is intended to return the parent and the index relative to this parent of the given item. Unfortunately, it is not, as the parameter 'parent' is not by reference. Furthermore, -reloadItem:reloadChildren does not update NSOutlineView's data structures _items and _levelOfItems, which leads to some more starnge behaviour in the case that the NSOutlineView's delegate does not simply return a changed item, but a new one. Maybe, this behaviour is intended, as the delegate is supposed to return the same, but changed item. However, fixing this is not difficult imho, thus, I'd prefer to change this behaviour. Attached is patch with a fix, containg a couple of detailed comments on what I did.
Please anyone comment on this. Thanks.



Andreas Heppel

Mail: aheppel at web dot de
Home: http://www.andreasheppel.de

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Attachment: NSOutlineView.diff
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