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Re: core data, selected items and undo

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Re: core data, selected items and undo

Subject: Re: core data, selected items and undo
From: Martin Wennerberg <email@hidden>
Date: Wed, 17 Jan 2007 15:25:30 +0100


16 jan 2007 kl. 19.19 skrev Brian Williams:

When a graphic is selected it is placed into an array controller (selectedGraphicsArrayController).

How is it placed in that array controller, manually by you or by some bindings? It's very easy to get in trouble with if you keep any pointers to core data objects.

In MY drawing program (of sorts) I had all kinds of trouble with Undo, Save As and Revert until I redesigned to remove code that kept pointers directly or via KVO.

Martin
Norrkross Software

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  >core data, selected items and undo (From: Brian Williams <email@hidden>)




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