MOTabView extends NSTabView to add drag & drop support.
MOTabView extends NSTabView to add drag & drop support. The tab view's delegate can implement various new methods to support dragging of tabs and accepting drops. As a drag source, MOTabView allows tabs to be dragged. As a drag destination MOTabView supports drops either "onto" a tab or "between" tabs. In both cases, it is left to the delegate to deal with the actual pasteboard content.
dragImageForItem:event:dragImageOffset: |
- ( NSImage *) dragImageForItem: (NSTabViewItem *) dragItem event: (NSEvent *) dragEvent dragImageOffset: (NSPointPointer ) dragImageOffsetPtr;
Returns the image to use for dragging a tab. MOTabView will create a default image, but subclasses can override if they need to do something different. This method will be called with dragImageOffset set to NSZeroPoint, but it can be modified to re-position the returned image. A dragImageOffset of NSZeroPoint will cause the image to be centered under the mouse.
- dragItem
- The NSTabViewItem that will be dragged.
- dragEvent
- The event that started the drag.
- dragImageOffsetPtr
- A pointer to a point that can be filled in to provide an image offset.
setDropItemIndex:dropOperation: |
- ( void ) setDropItemIndex: (int ) itemIndex dropOperation: (MOTabViewDropOperation ) op;
Method to allow delegate to reposition a drop. To be used from tabView:validateDrop:proposedItemIndex:proposedDropOperation: if you wish to "re-target" the proposed drop. To specify a drop on the second item, one would specify itemIndex=1, and op=MOTabViewDropOnItem. To specify a drop after the last item, one would specify row=[[tabView tabViewItems] count], and op=MOTabViewDropBeforeItem.
- itemIndex
- The item index.
- op
- The drop operation.
(Last Updated 3/20/2005)