Animated GIF in JFace TableViewer

Data.java

public class Data {
  boolean busy;
  String firstName;
  String lastName;

  public Data(String firstName, String lastName, boolean busy) {
    this.firstName = firstName;
    this.lastName = lastName;
    this.busy = busy;
  }
}

TableViewerAnimation.java

public class TableViewerAnimation {

 /**
  * The label provider that will animate the GIF.
  */
 private class MyLabelProvider extends LabelProvider implements
   ITableLabelProvider {
  /**
   * The thread that will do the animation.
   */
  private class TableImageUpdater extends Thread {
   /** Items to update */
   private final ArrayList<TableItem> list = new ArrayList<TableItem>();
   /** The current image number */
   private int progress = 0;

   @Override
   public void run() {
    while (true) {
     long currentTime = System.currentTimeMillis();
     while (currentTime + delay[progress] * 10 > System
       .currentTimeMillis()) {
      try {
       Thread.sleep(delay[progress]);
      } catch (InterruptedException e) {
       e.printStackTrace();
      }
     }
     Display.getDefault().asyncExec(new Runnable() {
      @Override
      public void run() {
       progress++;
       if (progress >= images.length) {
        progress = 0;
       }
       for (TableItem item : list) {
        Data d = (Data) item.getData();
        if (d.busy) {
         item.setImage(images[progress]);
        }
       }
      }
     });
    }
   }
  }

  /** The delay between images */
  int[] delay;
  /** The progress images */
  Image[] images;
  /** Thread to update images */
  private TableImageUpdater updater;

  public MyLabelProvider() {
   initializeImages();
   installPainter();
  }

  public Image getColumnImage(Object element, int columnIndex) {
   if (columnIndex == 0 && ((Data) element).busy) {
    return images[0];
   }
   return null;
  }

  public String getColumnText(Object element, int columnIndex) {
   Data d = (Data) element;
   switch (columnIndex) {
   case 0:
    return d.firstName;
   case 1:
    return d.lastName;
   }
   return "";
  }

  private void initializeImages() {
   ImageLoader loader = new ImageLoader();
   loader.load(getClass().getResourceAsStream("PROGRESS.gif"));
   images = new Image[loader.data.length];
   delay = new int[loader.data.length];
   for (int x = 0; x < images.length; x++) {
    ImageData imageData = loader.data[x];
    delay[x] = loader.data[x].delayTime;
    images[x] = new Image(Display.getCurrent(), imageData);
   }
  }

  private void installPainter() {
   updater = new TableImageUpdater();
   updater.start();
   // Install the updater on each new item in the table as soon as the
   // data is set.
   viewer.getTable().addListener(SWT.SetData, new Listener() {
    public void handleEvent(Event event) {
     TableItem item = (TableItem) event.item;
     updater.list.add(item);
    }
   });
  }
 }

 public static void main(String[] args) {
  new TableViewerAnimation().run();
 }

 private final Shell shell;

 private final TableViewer viewer;

 public TableViewerAnimation() {
  super();

  shell = new Shell(Display.getDefault(), SWT.SHELL_TRIM);
  shell.setText("Famous generals");
  shell.setLayout(new FillLayout());
  // We use SWT.VIRTUAL here so that the SWT.SetData event will be called.
  Table table = new Table(shell, SWT.BORDER | SWT.SINGLE
    | SWT.FULL_SELECTION | SWT.VIRTUAL);
  table.setHeaderVisible(true);

  TableColumn column = new TableColumn(table, SWT.LEFT);
  column.setText("First Name");
  column.setWidth(80);

  column = new TableColumn(table, SWT.LEFT);
  column.setText("Last Name");
  column.setWidth(180);

  viewer = new TableViewer(table);

  viewer.setContentProvider(new ArrayContentProvider());
  viewer.setLabelProvider(new MyLabelProvider());
  shell.pack();
 }

 public void run() {
  Display display = Display.getCurrent();
  shell.pack();
  shell.open();

  Data[] data = new Data[] { new Data("Hannibal", "Barca", false),
    new Data("Alexander", "The Great", true),
    new Data("Julius", "Caesar", false),
    new Data("Napoleon", "Bonaparte", true),
    new Data("Sun", "Tzu", false) };

  viewer.setInput(data);

  while (!shell.isDisposed())
   if (!display.readAndDispatch())
    display.sleep();
  display.dispose();
 }

}