Override: - (NSArray *)draggingImageComponents;
Apple uses it in its sample TableViewPlaygroud. I found it using br -n "-[NSDraggingImageComponent initWithKey:]". lldb and breakpoints can help you. Use hopper or class-dump to see method names (AppKit). Marek. On Fri, Dec 15, 2017 at 6:52 PM, David Catmull <davidcatm...@gmail.com> wrote: > In my table view, when you drag an item, the drag image it uses comes from > the column cell where the drag started, rather than using the cell from the > first column where I have the icon and name. How do I make it use the first > column? > > I'm looking at Apple's TableViewPlayground as an example, and the outline > view there works like I want, and I can't see what the key difference is. > > I'm tempted to try to fix it in tableView:updateDraggingItemsForDrag: but > the Apple sample only uses that to update the image for external drags. For > local drags, that method is essentially not used. If I comment that method > out, the first-column-image behavior I want still works in the sample. > > I have a simple example at https://github.com/Uncommon/TableTest - notice > that dragging from different columns yields different drag images even > though the data in the drag is the same. > _______________________________________________ > > 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: > https://lists.apple.com/mailman/options/cocoa-dev/xhruso00%40gmail.com > > This email sent to xhrus...@gmail.com > _______________________________________________ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
