CODEWITHSUNDEEP
objective-cmacoscocoaxcode4.2
Apollo
Apollo

Reputation: 1986

NSTableView drag & drop item to a new position

How do I start implementing the drag & drop capability in an NSTableView to re-order items like the one we see in OSX's Language & Text preferences panel?

I can't find any references online. Maybe I am looking for it with the wrong keywords?

Maybe it is not even NSTableView, maybe I need to extend NSTableColumn or NSCell.

I am using XCode 4.2 in Snow Leopard.

Any help appreciated!

I attach an image from the mentioned panel to give an idea (dragging item "Deutsch" to the last position):

enter image description here

Upvotes: 0

Views: 1132

Answers (1)

Hussain Shabbir
Hussain Shabbir

Reputation: 15035

Implement the following below method for drag and drop

1) - (BOOL)tableView:(NSTableView *)tv writeRows:(NSArray*)rows toPasteboard:(NSPasteboard*)pboard

2) - (NSArray *)namesOfPromisedFilesDroppedAtDestination:(NSURL *)dropDestination

3) - (void)draggedImage:(NSImage *)anImage endedAt:(NSPoint)aPoint operation:(NSDragOperation)operation

4) -(void)awakeFromNib
{
        [tableView registerForDraggedTypes: [NSArray arrayWithObjects:NSPasteboardTypeString, nil]];
        [tableView setDraggingSourceOperationMask:NSDragOperationEvery forLocal:NO];
}

Also in bindings connect your table to datasource of your fileowner

Upvotes: 2

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