You might have already figured this out, but in case it helps... Be careful not to confuse the TableView delegate with the DataSource delegate. Check out the TableView programming guide: http://developer.apple.com/documentation/Cocoa/Conceptual/TableView/TableView.html
You can use two different sets of delegate messages to customize an NSTableView. The datasource delegate methods get called in order to populate the table with data. The TableView delegate methods get called in response to user-generated events. The DataSource informal protocol: http://developer.apple.com/documentation/Cocoa/Reference/ApplicationKit/Protocols/NSTableDataSource_Protocol/Reference/Reference.html#//apple_ref/occ/cat/NSTableDataSource delegate methods specific for a TableView: http://developer.apple.com/documentation/Cocoa/Conceptual/TableView/Tasks/UsingTableDelegate.html#//apple_ref/doc/uid/20000116-CJBDHFIC Your tableview delegate can also respond to delegate messages for NSControl and NSView (its superclasses). In your list below, > #is not delegated to > def tableView(tv, setObjectValue:anObject, forTableColumn:col, row:row) > NSLog("tableView setObject") > #edit data here > end > #is not delegated to > def numberOfRowsInTableView(tv) > NSLog("numberOfRowsInTableView") > 0 #test 0 > end > #is not delegated to > def tableView(tv, objectValueForTableColumn:col, row:row) > NSLog("objectValueForTableColumn") > val = "richard" > end These methods are sent to the 'dataSource' delegate, not the 'delegate' (view delegate). In order for your dataSource delegate methods to be called, you need to either: 1. Define the methods in a separate class, and assign an instance of that class as: @tableView.dataSource = myDataSource 2. Define the methods in your TableView Controller class, set the dataSource delegate to self: @tableView.dataSource = self You _must_ set the tableView delegate in order to receive the messages, even if you have everything in one class and you just want to set them to 'self'. For simple cases, you can implement both the 'dataSource' and view 'delegate' classes in your TableView controller and set both delegates to self. For an example of this, see the FlickrDemo example app in macruby-examples dir. Also, since it was mentioned, you should be able to leave the 'target' property unset (or set it to nil). In cocoa, nil targeted actions do _not_ go into the void. Instead, they sent are passed along the responder chain so that the next appropriate control can handle the message. This is useful for when you want to the same action to be performed as a result of different inputs (i.e. menu, button or click in row, ect..). You can just define the action methods in a class that is part of the responder chain and send a nil targeted actions from your controls. There is must-listen Mac-Developer Network podcast interview with Aaron Hillegass on the Responder Chain: http://www.mac-developer-network.com/shows/podcasts/lnc/lnc009/ Brian 2009/4/1 John Shea <johnmacs...@gmail.com>: > Hi Dave, > thanks for your answer. > > On Apr 1, 2009, at 14:39 , Dave Baldwin wrote: > > I haven't had any problems using delegate methods. For example I do: > @tableView.delegate = self > and define a delegate method: > def tableView (table, shouldEditTableColumn: c, row: r) > false > end > > Thats the first thing I tried - but for the tableView(table, setObjectValue > .. method which was not delegated to. > Unfortunately as it was the first one i tried (because i wanted to edit > table fields) - that sent me on a wild goose chase trying to figure out why > the delegate was not working as it was in all of my non-hotcocoa code. > So thanks for pointing out that some of them are actually delegated to. > For me: > > #works > def controlTextDidChange(notification) > NSLog("controlTextDidChange #{notification.object}") > NSLog(@mv_table_view.selectedRow.to_s) > end > > #works > def tableView(tv, willDisplayCell:cell, forTableColumn:col, row:the_row) > NSLog("willDisplayCell") > end > #works > def tableViewSelectionDidChange(notification) > NSLog("tableViewSelectionDidChange") > end > #is not delegated to > def tableView(tv, setObjectValue:anObject, forTableColumn:col, row:row) > NSLog("tableView setObject") > #edit data here > end > #is not delegated to > def numberOfRowsInTableView(tv) > NSLog("numberOfRowsInTableView") > 0 #test 0 > end > #is not delegated to > def tableView(tv, objectValueForTableColumn:col, row:row) > NSLog("objectValueForTableColumn") > val = "richard" > end > > I could probably do a work around with controlTextDidChange - but it seems a > bit dodgy. > Or another option would be to edit not within the table, but in another > form. > I suppose there is some simple explanation - but I am missing it for the > moment. > Cheers, > J > > > > > > _______________________________________________ > 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
