code: protected void handleObjectPressed (final SceneObject scobj, int mx, int my)
      {
          String action = scobj.info.action;
          final ObjectActionHandler handler = ObjectActionHandler.lookup(action);
  
          // if there's no handler, just fire the action immediately
          if (handler == null) {
              fireObjectAction(null, scobj, new SceneObjectActionEvent(
                                   this, 0, action, 0, scobj));
              return;
          }
  
          // if the action's not allowed, pretend like we handled it
          if (!handler.actionAllowed(action)) {
              return;
          }
  
          // if there's no menu for this object, fire the action immediately
          RadialMenu menu = handler.handlePressed(scobj);
          if (menu == null) {
              fireObjectAction(handler, scobj, new SceneObjectActionEvent(
                                   this, 0, action, 0, scobj));
              return;
          }
  
          // make the menu surround the clicked object, but with consistent size
          Rectangle mbounds = getRadialMenuBounds(scobj);
  
          _activeMenu = menu;
          _activeMenu.addActionListener(new ActionListener() {
              public void actionPerformed (ActionEvent e) {
                  if (e instanceof CommandEvent) {
                      fireObjectAction(handler, scobj, e);
                  } else {
                      SceneObjectActionEvent event = new SceneObjectActionEvent(
                          e.getSource(), e.getID(), e.getActionCommand(),
                          e.getModifiers(), scobj);
                      fireObjectAction(handler, scobj, event);
                  }
              }
          });
          _activeMenu.activate(this, mbounds, scobj);
      }
docs: Called when the user presses the mouse button over an object.