scala.swing.ButtonGroup.scala Maven / Gradle / Ivy
/* __ *\
** ________ ___ / / ___ Scala API **
** / __/ __// _ | / / / _ | (c) 2007-2013, LAMP/EPFL **
** __\ \/ /__/ __ |/ /__/ __ | http://scala-lang.org/ **
** /____/\___/_/ |_/____/_/ | | **
** |/ **
\* */
package scala.swing
import event._
import javax.swing.{AbstractButton => JAbstractButton,Icon}
import scala.collection.{ mutable, immutable }
/**
* A button mutex. At most one of its associated buttons is selected
* at a time.
*
* @see javax.swing.ButtonGroup
*/
class ButtonGroup(initialButtons: AbstractButton*) {
val peer: javax.swing.ButtonGroup = new javax.swing.ButtonGroup
val buttons: mutable.Set[AbstractButton] = new mutable.Set[AbstractButton] {
def -=(b: AbstractButton): this.type = { peer.remove(b.peer); this }
def +=(b: AbstractButton): this.type = { peer.add(b.peer); this }
def contains(b: AbstractButton) = this.iterator.contains(b)
override def size = peer.getButtonCount
def iterator: Iterator[AbstractButton] = new Iterator[AbstractButton] {
val enum = peer.getElements
def next = UIElement.cachedWrapper[AbstractButton](enum.nextElement)
def hasNext = enum.hasMoreElements
}
}
buttons ++= initialButtons
//1.6: def deselectAll() { peer.clearSelection }
def selected: Option[AbstractButton] = buttons.find(_.selected)
def select(b: AbstractButton) { peer.setSelected(b.peer.getModel, true) }
}