add PopupMenu.scala

src/main/scala/scala/swing/PopupMenu.scala

@@ -0,0 +1,51 @@
+/*                     __                                               *\
+**     ________ ___   / /  ___     Scala API                            **
+**    / __/ __// _ | / /  / _ |    (c) 2007-2010, LAMP/EPFL             **
+**  __\ \/ /__/ __ |/ /__/ __ |    http://scala-lang.org/               **
+** /____/\___/_/ |_/____/_/ | |                                         **
+**                          |/                                          **
+\*                                                                      */
+
+
+
+package scala.swing
+
+import javax.swing.JPopupMenu
+
+object PopupMenu {
+  private[PopupMenu] trait JPopupMenuMixin { def popupMenuWrapper: PopupMenu }
+}
+
+/**
+ * A popup menu.
+ * 
+ * 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)
+ * }}}
+ * 
+ * @see javax.swing.JPopupMenu
+ */
+class PopupMenu extends Component with SequentialContainer.Wrapper {
+
+  override lazy val peer: JPopupMenu = new JPopupMenu with PopupMenu.JPopupMenuMixin with SuperMixin {
+    def popupMenuWrapper = PopupMenu.this
+  }
+
+  def show(invoker: Component, x: Int, y: Int): Unit = peer.show(invoker.peer, x, y)
+}