Java tutorial
/* Java Swing, 2nd Edition By Marc Loy, Robert Eckstein, Dave Wood, James Elliott, Brian Cole ISBN: 0-596-00408-7 Publisher: O'Reilly */ // GestureTest.java //A simple (?) test of the DragGesture classes to see if we //can recognize a simple drag gesture. // import java.awt.BorderLayout; import java.awt.dnd.DnDConstants; import java.awt.dnd.DragGestureEvent; import java.awt.dnd.DragGestureListener; import java.awt.dnd.DragGestureRecognizer; import java.awt.dnd.DragSource; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import javax.swing.JFrame; import javax.swing.JList; import javax.swing.JScrollPane; import javax.swing.ListSelectionModel; public class GestureTest extends JFrame implements DragGestureListener { DragSource ds; JList jl; String[] items = { "Java", "C", "C++", "Lisp", "Perl", "Python" }; public GestureTest() { super("Gesture Test"); setSize(200, 150); addWindowListener(new WindowAdapter() { public void windowClosing(WindowEvent we) { System.exit(0); } }); jl = new JList(items); jl.setSelectionMode(ListSelectionModel.SINGLE_SELECTION); getContentPane().add(new JScrollPane(jl), BorderLayout.CENTER); ds = new DragSource(); DragGestureRecognizer dgr = ds.createDefaultDragGestureRecognizer(jl, DnDConstants.ACTION_COPY, this); setVisible(true); } public void dragGestureRecognized(DragGestureEvent dge) { System.out.println("Drag Gesture Recognized!"); } public static void main(String args[]) { new GestureTest(); } }