--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/Tools/Graphview/mutator_event.scala Tue Dec 30 14:11:06 2014 +0100
@@ -0,0 +1,35 @@
+/* Title: Tools/Graphview/mutator_event.scala
+ Author: Markus Kaiser, TU Muenchen
+
+Events for dialog synchronization.
+*/
+
+package isabelle.graphview
+
+
+import isabelle._
+
+import scala.collection.mutable
+
+import java.awt.Color
+
+
+object Mutator_Event
+{
+ type Mutator_Markup = (Boolean, Color, Mutator)
+
+ sealed abstract class Message
+ case class Add(m: Mutator_Markup) extends Message
+ case class NewList(m: List[Mutator_Markup]) extends Message
+
+ type Receiver = PartialFunction[Message, Unit]
+
+ class Bus
+ {
+ private val receivers = new mutable.ListBuffer[Receiver]
+
+ def += (r: Receiver) { GUI_Thread.require {}; receivers += r }
+ def -= (r: Receiver) { GUI_Thread.require {}; receivers -= r }
+ def event(x: Message) { GUI_Thread.require {}; receivers.foreach(r => r(x)) }
+ }
+}
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