Listener Problem on TableItem

[Tommaso Nuccio]

Hi all,

I have a table with tableItems and each tableItem registers two Listeners:

ti.addListener(SWT.MouseHover, getTableListener());
ti.addListener(SWT.MouseMove, getTableListener());

Further I have a handleEvent(), like this:

private Listener getTableListener() {

if(this.userTableItemListener != null) {
return userTableItemListener;
} else {
userTableItemListener = new Listener() {
public void handleEvent(Event event) {
Shell tip = null;
Label label = null;
 
switch(event.type){
case SWT.MouseMove: {
          if (tip == null)
            break;
          tip.setVisible(false);
          tip.dispose();
          tip = null;
          label = null;
          break;
        }
case SWT.MouseHover: {
          TableItem item = userTable.getItem(new Point(event.x, event.y));
          if (item != null) {
            if (tip != null && !tip.isDisposed())
              tip.dispose();
            tip = new Shell(shell, SWT.ON_TOP | SWT.TOOL);
            tip.setLayout(new FillLayout());
            label = new Label(tip, SWT.NONE);
            label.setForeground(display.getSystemColor(SWT.COLOR_INFO_FOREGROUND));
            label.setBackground(display.getSystemColor(SWT.COLOR_INFO_BACKGROUND));
            label.setData("_TABLEITEM", item);
            label.setText(item.getText());
            Point size = tip.computeSize(SWT.DEFAULT, SWT.DEFAULT);
            Rectangle rect = item.getBounds(0);
            Point pt = userTable.toDisplay(rect.x, rect.y);
            tip.setBounds(pt.x, pt.y, size.x, size.y);
            tip.setVisible(true);
          }
}
}
}};

return userTableItemListener;
}

The MouseHover works and you get a Tooltip for each entry. But then the tooltip stays forever, because the MouseExit doesn't fire and the tooltip is not removed.

My question is, why does the MouseMove doesn't work?
Maybe the tableitems cannot register a MouseMove? When so, where can I find a list with a component <-> Listener relation?

Many thanks in advance.

Ciao,
Tommaso