ScalaでSwing メニュー

ScalaSwingMenu.scala

// ScalaでSwing メニュー

import scala.swing._
import scala.swing.event.WindowClosing
import java.awt.event.{ KeyEvent, InputEvent }
import javax.swing.{ KeyStroke, ImageIcon }

object ScalaSwingMenu extends SimpleGUIApplication {
  def top = new MainFrame {
    title = "ScalaでSwing メニュー"
    size = (600, 400)
//    contents = new Label() { icon = new ImageIcon("icon.png") }

    // メニュー
    val menuFile = new Menu("メニュー(M)")
    //TODO menuFile.mnemonic = Key.M
    val menuOpen = new MenuItem(new Action("開く(O)") {
      mnemonic = KeyEvent.VK_O
      accelerator = Some(KeyStroke.getKeyStroke(KeyEvent.VK_O, InputEvent.CTRL_DOWN_MASK))
      icon = new ImageIcon("build/icon.png")
      toolTip = "ファイルを開く"
      def apply() {}
    })
    val menuSave = new MenuItem(new Action("保存(S)") {
      mnemonic = KeyEvent.VK_S
      accelerator = Some(KeyStroke.getKeyStroke(KeyEvent.VK_S, InputEvent.CTRL_DOWN_MASK))
      enabled = false
      def apply() {}
    })
    val menuLine = new CheckMenuItem("行番号を表示")
    val menuLang = new Menu("言語(L)")
    val menuLangScala = new RadioMenuItem("Scala")
    val menuLangRuby = new RadioMenuItem("Ruby")
    val mutexLang = new ButtonGroup(menuLangScala, menuLangRuby)
    menuLang.contents ++= mutexLang.buttons
    val menuExit = new MenuItem(new Action("終了(X)") {
      mnemonic = KeyEvent.VK_X
      def apply() {
        top.publish(new WindowClosing(top))
      }
    })
    menuFile.contents += menuOpen
    menuFile.contents += menuSave
    menuFile.contents += menuLine
    menuFile.contents += menuLang
    menuFile.contents += new Separator
    menuFile.contents += menuExit

    menuBar = new MenuBar {
      contents += menuFile
    }
  }
}