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multiple UndoManagers
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multiple UndoManagers


  • Subject: multiple UndoManagers
  • From: Georg Seifert <email@hidden>
  • Date: Sat, 5 Jul 2008 13:07:45 +0200

Hello,

I have a rather complicated undo setting
My document Object has a Array of independent graphical items (containing some properties).


Each item should have its own undo/redo based of selection in the interface. So I select Item_1, modify it, select Item_2 and modify it, too. Then I want to be able to select item_1 again and undo its changes.

I know that this is very unusual and may confuse users but it needs to be this way.

I have a Instance of NSUndoManager in each of my items. But how do I tell the menu which undoManager is "active" (to display an appropriate actionName).

any suggestion is welcome.
Thanks in advance
Georg

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