How to impliment Configure icon in a Chart

Hello,
How can i impliment a configure icon in a Chart like in Quicktickets demo?

Anyone have any clue how to do this?
 

Hi,

you can check out the full source code of  the Quicktickets demo on github.

Quicktickets Demo source 

regards

Johannes

This icon is not a part a chart. It's implemented with Vaadin menubar:

MenuBar tools = new MenuBar();
MenuItem root = tools.addItem("", FontAwesome.COG, null);
root.addItem("Configure", new Command() {
  @Override
  public void menuSelected(final MenuItem selectedItem) {
    Notification.show("Not implemented in this demo");
  }
});

Many thx for your help!!!