PopupMenu

A popup menu component.

Example usage:

val popupMenu = new PopupMenu {
 contents += new Menu("menu 1") {
   contents += new RadioMenuItem("radio 1.1")
   contents += new RadioMenuItem("radio 1.2")
 }
 contents += new Menu("menu 2") {
   contents += new RadioMenuItem("radio 2.1")
   contents += new RadioMenuItem("radio 2.2")
 }
}
val button = new Button("Show Popup Menu")
reactions += {
 case e: ButtonClicked => popupMenu.show(button, 0, button.bounds.height)
}
listenTo(button)

The component publishes PopupMenuCanceled, PopupMenuWillBecomeInvisible and PopupMenuWillBecomeVisible events which can be used to determine when the menu is opened or closed.