connectionActionMap.put( propertyDialogAction, new ConnectionViewActionProxy( viewer, this,
new PropertiesAction() ) );
// DND support
dropConnectionListener = new DropConnectionListener();
dragConnectionListener = new DragConnectionListener( viewer );
int ops = DND.DROP_COPY | DND.DROP_MOVE;
Transfer[] transfers = new Transfer[]
{ ConnectionTransfer.getInstance() };
viewer.addDragSupport( ops, transfers, dragConnectionListener );
viewer.addDropSupport( ops, transfers, dropConnectionListener );