Re: Implementing a Slightly Unusual NSTableView

FROM : Corbin Dunn
DATE : Mon Apr 21 19:08:28 2008

>
>
> I seem to recall that in 10.5 there is new API, either in 
> NSTableView or NSActionCell, that makes this easy to do; but I just 
> looked through both headers and can't find it. Does anyone else 
> remember?


Yeah, I remember. The DragNDropOutlineView demo shows how.

Basically, you implement:

- (BOOL)tableView:(NSTableView *)tableView shouldTrackCell:(NSCell 
*)cell forTableColumn:(NSTableColumn *)tableColumn row:(NSInteger)row;

And return YES, even if you don't allow the row to be selected, or if 
the table refuses first responder. You could refuse first responder 
via -acceptsFirstResponder by looking at [NSApp currentEvent] and 
determining if it is hit in the given cell (The demo app does 
something like this for refusing to change the row).

corbin