Steve, I am not sure what stage you are at with your example, I originally did this without using an array controller, and the undoing worked fine.
I just threw together a version with an array controller - and the insertObject(person, inEmployeesAtIndex:index) and remove methods are being called by the array controller - however they seem to be passing the index as a nil. Perhaps this is what Ernest was talking about - an unboxing issue?? Undoing initially works. Selecting the second row, and then pressing insert causes a crash into the debugger - so perhaps again some issue with what method the array controller is calling or trying to call (and the vars it is trying to pass) - as Ernest implied (?). Note that this experiment was still with 0.4. Perhaps it works ok in later versions? I personally have not come across this issue before because I never use the arraycontroller method insert and remove - I always have my own controller methods - usually I want to check other things before adding or removing (I believe later in the book the array controller methods are replaced with own methods). Not a solution but perhaps you can work around it, by using your own controller actions, and then exploring the undo aspects? Cheers, John On Mon, Oct 26, 2009 at 4:06 PM, s.ross <cwdi...@gmail.com> wrote: > John-- > > I've started a github repo at http://github.com/sxross/raiseman-rb, but it > doesn't yet reflect that I can now do initial editing of an inserted row, > but undo is not there yet. > > Thanks, > > Steve > > > On Oct 26, 2009, at 1:22 AM, John Shea wrote: > > Hi Steve, > did you solve this one? > if not perhaps you could post somewhere the MyDocument.rb code for us to > look at? > Cheers, > J > > On Sun, Oct 25, 2009 at 7:17 PM, s.ross <cwdi...@gmail.com> wrote: > >> I'm trying to implement the RaiseMan example from Aaron Hillegass's book >> in MacRuby. All has gone pretty well until I reached undo. The idea is to >> handle the insertObject message each time a Person is inserted and >> manipulate the undo stack. >> >> def insertObject(p, inEmployeesAtIndex:index) >> NSLog("adding #{p} to #{employees}") # <= Not called, huh? >> undo = @undoManager >> undo.prepareWithInvocationTarget(self, >> removeObjectFromEmployeesAtIndex:index) >> if !undo.isUndoing >> undo.setActionName("Insert Person") >> end >> employees.insertObject(p, atIndex:index) >> end >> >> The Objective-C signature for this is: >> >> - (void)insertObject:(Person *)p inEmployeesAtIndex:(int)index >> >> Works in Objective-C but in my Ruby, the method is not recognized as a >> handler to be invoked when a Person object is to be inserted in the >> employees array. I should note that I created the employees array using Ruby >> syntax: >> >> @employees ||= [] >> >> Changing this to: >> >> @employees ||= NSMutableArray.alloc.init >> >> makes no difference in this scenario. >> >> Any hints with respect to what I'm missing here? >> >> Thanks, >> >> Steve >> >> >> _______________________________________________ >> MacRuby-devel mailing list >> MacRuby-devel@lists.macosforge.org >> http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel >> >> > _______________________________________________ > MacRuby-devel mailing list > MacRuby-devel@lists.macosforge.org > http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel > > > > _______________________________________________ > MacRuby-devel mailing list > MacRuby-devel@lists.macosforge.org > http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel > >
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