Drag and Drop: New Data Transfer Capabilities in the JavaTM 2 Platform, Standard Edition (J2SETM), version 1.4

Drag and Drop: New Data Transfer Capabilities in the JavaTM 2 Platform, Standard Edition (J2SETM), version 1.4(9) Here's just sUCh a class definition that works with all AbstractButton subclasses and the JLabel component.

import Java.awt.*;import Java.awt.datatransfer.*;import Java.io.*;import Javax.swing.*;public class ImageSelection extends TransferHandler implements Transferable {private static final DataFlavor flavors[] ={DataFlavor.imageFlavor};private Image image;public int getSourceActions(JComponent c) { return TransferHandler.COPY;}public boolean canImport(JComponent comp, DataFlavorflavor[]) { if (!(comp instanceof JLabel)  (comp instanceof AbstractButton)) {return false; } for (int i=0, n=flavor.length; i<n; i++) {if (flavor[i].equals(flavors[0])) {return true;} } return false;}public Transferable createTransferable(JComponentcomp) { // Clear image = null; Icon icon = null; if (comp instanceof JLabel) {JLabel label = (JLabel)comp;icon = label.getIcon(); } else if (comp instanceof AbstractButton) {AbstractButton button = (AbstractButton)comp;icon = button.getIcon(); } if (icon instanceof ImageIcon) {image = ((ImageIcon)icon).getImage();return this; } return null;}public boolean importData(JComponent comp,Transferable t) { ImageIcon icon = null; try {if (t.isDataFlavorSupported(flavors[0])) {image = (Image)t.getTransferData(flavors[0]);icon = new ImageIcon(image);}if (comp instanceof JLabel) {JLabel label = (JLabel)comp;label.setIcon(icon);return true;} else if (comp instanceof AbstractButton) {AbstractButton button = (AbstractButton)comp;button.setIcon(icon);return true;} } catch (UnsupportedFlavorException ignored) { } catch (IOException ignored) { } return false;}// Transferablepublic Object getTransferData(DataFlavor flavor) { if (isDataFlavorSupported(flavor)) {return image; } return null;}public DataFlavor[] getTransferDataFlavors() { return flavors;}public boolean isDataFlavorSupported(DataFlavorflavor) { return flavor.equals(flavors[0]);}}