Bug 189847 [DND] Combo/Text on Linux does not fire Drop event.
examples/org.eclipse.swt.examples/src/org/eclipse/swt/examples/dnd/DNDExample.java
Label label = new Label(parent, SWT.BORDER);
			label.setText(prefix+" Label");
			return label;
		}
		case LIST: {
			List list = new List(parent, SWT.BORDER);
			list.setItems(new String[] {prefix+" Item a", prefix+" Item b",  prefix+" Item c",  prefix+" Item d"});
			return list;
		}
		default:
			throw new SWTError(SWT.ERROR_NOT_IMPLEMENTED);
	}
}
public void open(Display display) {
	Shell shell = new Shell(display);
	shell.setText("Drag and Drop Example");
	shell.setLayout(new FillLayout());
	
	ScrolledComposite sc = new ScrolledComposite(shell, SWT.H_SCROLL | SWT.V_SCROLL);
	Composite parent = new Composite(sc, SWT.NONE);
	sc.setContent(parent);
	parent.setLayout(new FormLayout());
	
	Label dragLabel = new Label(parent, SWT.LEFT);
	dragLabel.setText("Drag Source:");
	
	Group dragWidgetGroup = new Group(parent, SWT.NONE);
	dragWidgetGroup.setText("Widget");
	createDragWidget(dragWidgetGroup);