You are right, I forgot to check the delegate methods. On 17 March 2010 14:41, Keith Blount <[email protected]> wrote:
> I might be missing something, but can you not just use the NSTextView > delegate message, -undoManagerForTextView:? This is what I do in my app. I > have a single text view that can have various text storage objects swapped > into it, and I have each of those text storages associated with a different > NSUndoManager. I use -undoManagerForTextView: to return whichever undo > manager corresponds to the current text object, so that the user's undoes > affect the currently loaded text and the user can load up a text he or she > worked on earlier and hitting undo will undo whatever they last did in that > particular text. > > Hope that helps. > All the best, > Keith > > --- original message --- > > Is there a way to bind the text view's undo manager to an instance of > NSUndoManager on my model object? > > I can get to the text view undo manager but I don't seem to be able to set > it. > > On 17 March 2010 13:34, Keary Suska <em...@hidden> wrote: > > > On Mar 16, 2010, at 6:09 PM, Rui Pacheco wrote: > > > > > I've a window with a fairly complex layout - one NSTextView and several > > > tables, all displaying different types of data. To keep things in > order, > > > I've created a model object that holds the data for all these interface > > > elements. The window may also hold several instances of the model > object > > and > > > I list them in a table. > > > > > > My problem is how to keep the undo manager for the text view > synchronised > > > with a particular instance of a model object. As the user switches > > between > > > model objects, I want him to be able to do cmd + z transparently with > the > > > window knowing what changed in that particular instance. > > > > > > Some research seems to indicate that using core data would give me this > > for > > > free - make my model objects extend NSManagedObject and I would have > undo > > > for free. Is this correct? > > > > More or less. You may want to keep in mind that "out of the box" that > undos > > will be tracked in the order they are registered across all objects. > I.e., > > user changes textfield value, tabs to textview and makes a change, then > hits > > undo twice, the textfield change will get undone. > > > > HTH, > > > > Keary Suska > > Esoteritech, Inc. > > "Demystifying technology for your home or business" > > > > > > > > > -- Best regards, Rui Pacheco _______________________________________________ Cocoa-dev mailing list ([email protected]) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [email protected]
