Re: Dragging

• Subject: Re: Dragging
• From: Scott Anguish <email@hidden>
• Date: Sat, 31 Jan 2004 16:27:21 -0500

On Jan 31, 2004, at 2:30 AM, Scott Anguish wrote:

On Jan 30, 2004, at 2:51 PM, mmalcolm crawford wrote:

Archiving the object covers the general case where the destination may be in a different application...

True, but that may not be applicable.

if you're doing strictly local dragging, there is no reason you can't set an instance variable somewhere to the object (objects) being dragged when the drag begins, and then get the object reference from that instance variable when the drag completes. This is often applicable when dealing with, oh, say an NSTableView.. :-)

For intra-table view dragging only, you can just stick the row indices onto the pasteboard like this:

- (BOOL)tableView:(NSTableView *)tableView writeRows:(NSArray*)rows toPasteboard:(NSPasteboard*)pboard {
[pboard declareTypes:[NSArray arrayWithObject:NSStringPboardType] owner:nil];
[pboard setPropertyList:rows forType:NSStringPboardType];
return YES;
}

Extract in the acceptDrop with [[info draggingPasteboard] propertyListForType:NSStringPboardType].

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