import java.awt.*;
import java.awt.event.*;
import java.awt.dnd.*;
import java.awt.datatransfer.*;
import javax.swing.*;
import java.io.*;

public class Drag1 extends JFrame 
    implements DragGestureListener, DragSourceListener, DropTargetListener
{
    static String items[] = { "Item 1", "Item No. 2", "The Third Item!" };

    Container cpane;
    DropTarget mytarget;
    DragSource mysource;
    DragGestureRecognizer dgr;

    JLabel source1;
    JList  list1;
    JTextArea text1;
    DefaultListModel lmod;

    public Drag1() {
	super("Drag1 Test");
	cpane = getContentPane();
	cpane.setLayout(new BorderLayout());

	source1 = new JLabel("Drag Source Label - drag me!");
	lmod = new DefaultListModel();
	list1 = new JList(lmod);
	for(int i = 0; i < items.length; i++)
	    lmod.addElement(items[i]);
	text1 = new JTextArea("Drag from the label to\nthe list, then drop!", 
		5, 24);

	mysource = new DragSource();

	mytarget = new DropTarget(list1, 
		DnDConstants.ACTION_COPY_OR_MOVE, this);

	dgr = mysource.createDefaultDragGestureRecognizer(source1,
		DnDConstants.ACTION_COPY_OR_MOVE, this);
	
	cpane.add("North", source1);
	cpane.add("Center", list1);
	cpane.add("South", text1);
	text1.setBackground(Color.pink);
	setBounds(100, 100, 320, 460);
	setVisible(true);
    }

    public void dragGestureRecognized(DragGestureEvent e) {
	String sel = source1.getText();
	e.startDrag(DragSource.DefaultCopyDrop, 
		    new StringSelection(sel), this);
    }

    public void dragEnter(DropTargetDragEvent e) {
	System.out.println("dragEnter");
	e.acceptDrag(DnDConstants.ACTION_COPY_OR_MOVE);
    }
    public void drop(DropTargetDropEvent e) {
	System.out.println("drop");
	try {
	    if (e.isDataFlavorSupported(DataFlavor.stringFlavor)) {
		Transferable tr = e.getTransferable();
		e.acceptDrop(DnDConstants.ACTION_COPY_OR_MOVE);
		String s = (String)tr.getTransferData(DataFlavor.stringFlavor);
		lmod.addElement(s);
		e.dropComplete(true);
	    }
	    else {
		e.rejectDrop();
	    }
	}
	catch (Exception ex) {
	    System.out.println("Data transfer exception: " + ex);
	}
    }
    public void dragExit(DropTargetEvent e) { 
	System.out.println("dragExit");
    }
    public void dragOver(DropTargetDragEvent e) { 
	System.out.println("dragOver (drop)");
    }
    public void dropActionChanged(DropTargetDragEvent e) {
	System.out.println("dropActionChanged");
    }

    public void dragDropEnd(DragSourceDropEvent e) {
	System.out.println("dragDropEnd");
    }
    public void dragEnter(DragSourceDragEvent e) {
	System.out.println("dragEnter");
    }
    public void dragExit(DragSourceEvent e) {
	System.out.println("dragExit");
    }
    public void dragOver(DragSourceDragEvent e) {
	System.out.println("dragOver (drag)");
    }
    public void dropActionChanged(DragSourceDragEvent e) {
	System.out.println("dragActionChanged (drag)");
    }


    public static void main(String [] args) {
	Drag1 d1;
	d1 = new Drag1();
	d1.addWindowListener(new WindowAdapter() { 
		public void windowClosing(WindowEvent we) {
		    System.exit(0);
		} } );
    }
}