Is there a document which describes how columns interact with enclosed cells when dealing with bindings?
There's a message flow going on that I'm not aware of. setObjectValue is passed different things for the same binding depending on if my class subclasses NSTextFieldCell or NSButtonCell. I don't see a way to fake it out without seeing more of the message flow. Too bad the source code isn't available. In the Java world, if worse comes to worse you can read the source to understand how framework classes interact. I've also read about a delegate method on NSOutlineView, outlineView:willDisplayCell:forTableColumn:item: Is this a more appropriate way to solve the problem? Should I be able to modify the title of a button cell through this delegate method? On Fri, May 16, 2008 at 1:58 AM, Kyle Sluder < [EMAIL PROTECTED] <[EMAIL PROTECTED]>> wrote: > On Thu, May 15, 2008 at 1:39 PM, David <[EMAIL PROTECTED]> wrote: > > I do not understand how the column in the NSOutlineView knows how to set > the > > property to the cell. How are the cell and column related? How do they > > interact? > > You bind the value of the column to a property, and then the column > loops N times, where N is the number of rows, setting the cell's value > and then drawing the cell in each row. It's non-obvious until you > really understand how the view/cell dichotomy works. > > > Is this the best approach? Is there some other preferred approach to this > > common problem? > > I'm hesitant to suggest this because it seems like bad form (reminds > me of the magic \t character in Windows menus that separates the menu > item name from its accelerator key) but you could probably use a > custom cell and override its -setObjectValue: method to parse your > string and then call -setTitle: as appropriate. > > --Kyle Sluder > _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) 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]
