diff -r 1a0f25c38629 -r 9d34cfe1dbdf src/Tools/jEdit/src/output1_dockable.scala
--- a/src/Tools/jEdit/src/output1_dockable.scala	Thu Sep 27 18:58:15 2012 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,188 +0,0 @@
-/*  Title:      Tools/jEdit/src/output1_dockable.scala
-    Author:     Makarius
-
-Dockable window with result message output.
-*/
-
-package isabelle.jedit
-
-
-import isabelle._
-
-import scala.actors.Actor._
-
-import scala.swing.{FlowPanel, Button, CheckBox}
-import scala.swing.event.ButtonClicked
-
-import java.lang.System
-import java.awt.BorderLayout
-import java.awt.event.{ComponentEvent, ComponentAdapter}
-
-import org.gjt.sp.jedit.View
-
-
-class Output1_Dockable(view: View, position: String) extends Dockable(view, position)
-{
-  Swing_Thread.require()
-
-
-  /* component state -- owned by Swing thread */
-
-  private var zoom_factor = 100
-  private var show_tracing = false
-  private var do_update = true
-  private var current_state = Command.empty.init_state
-  private var current_body: XML.Body = Nil
-
-
-  /* HTML panel */
-
-  private val html_panel =
-    new HTML_Panel(Isabelle.font_family(), scala.math.round(Isabelle.font_size()))
-  {
-    override val handler: PartialFunction[HTML_Panel.Event, Unit] =
-    {
-      case HTML_Panel.Mouse_Click(elem, event)
-      if Protocol.Sendback.unapply(elem.getUserData(Markup.Data.name)).isDefined =>
-        val sendback = Protocol.Sendback.unapply(elem.getUserData(Markup.Data.name)).get
-        Document_View(view.getTextArea) match {
-          case Some(doc_view) =>
-            doc_view.rich_text_area.robust_body() {
-              val cmd = current_state.command
-              val model = doc_view.model
-              val buffer = model.buffer
-              val snapshot = model.snapshot()
-              snapshot.node.command_start(cmd) match {
-                case Some(start) if !snapshot.is_outdated =>
-                  val text = Pretty.string_of(sendback)
-                  try {
-                    buffer.beginCompoundEdit()
-                    buffer.remove(start, cmd.proper_range.length)
-                    buffer.insert(start, text)
-                  }
-                  finally { buffer.endCompoundEdit() }
-                case _ =>
-              }
-            }
-          case None =>
-        }
-    }
-  }
-
-  set_content(html_panel)
-
-
-  private def handle_resize()
-  {
-    Swing_Thread.require()
-
-    html_panel.resize(Isabelle.font_family(),
-      scala.math.round(Isabelle.font_size() * zoom_factor / 100))
-  }
-
-  private def handle_update(follow: Boolean, restriction: Option[Set[Command]])
-  {
-    Swing_Thread.require()
-
-    val new_state =
-      if (follow) {
-        Document_View(view.getTextArea) match {
-          case Some(doc_view) =>
-            val snapshot = doc_view.model.snapshot()
-            snapshot.node.command_at(doc_view.text_area.getCaretPosition).map(_._1) match {
-              case Some(cmd) => snapshot.state.command_state(snapshot.version, cmd)
-              case None => Command.empty.init_state
-            }
-          case None => Command.empty.init_state
-        }
-      }
-      else current_state
-
-    val new_body =
-      if (!restriction.isDefined || restriction.get.contains(new_state.command))
-        new_state.results.iterator.map(_._2)
-          .filter(msg => !Protocol.is_tracing(msg) || show_tracing).toList  // FIXME not scalable
-      else current_body
-
-    if (new_body != current_body) html_panel.render(new_body)
-
-    current_state = new_state
-    current_body = new_body
-  }
-
-
-  /* main actor */
-
-  private val main_actor = actor {
-    loop {
-      react {
-        case Session.Global_Options =>
-          Swing_Thread.later { handle_resize() }
-        case changed: Session.Commands_Changed =>
-          Swing_Thread.later { handle_update(do_update, Some(changed.commands)) }
-        case Session.Caret_Focus =>
-          Swing_Thread.later { handle_update(do_update, None) }
-        case bad => System.err.println("Output_Dockable: ignoring bad message " + bad)
-      }
-    }
-  }
-
-  override def init()
-  {
-    Swing_Thread.require()
-
-    Isabelle.session.global_options += main_actor
-    Isabelle.session.commands_changed += main_actor
-    Isabelle.session.caret_focus += main_actor
-    handle_update(true, None)
-  }
-
-  override def exit()
-  {
-    Swing_Thread.require()
-
-    Isabelle.session.global_options -= main_actor
-    Isabelle.session.commands_changed -= main_actor
-    Isabelle.session.caret_focus -= main_actor
-    delay_resize.revoke()
-  }
-
-
-  /* resize */
-
-  private val delay_resize =
-    Swing_Thread.delay_first(
-      Time.seconds(Isabelle.options.real("editor_update_delay"))) { handle_resize() }
-
-  addComponentListener(new ComponentAdapter {
-    override def componentResized(e: ComponentEvent) { delay_resize.invoke() }
-  })
-
-
-  /* controls */
-
-  private val zoom = new Library.Zoom_Box(factor => { zoom_factor = factor; handle_resize() })
-  zoom.tooltip = "Zoom factor for basic font size"
-
-  private val tracing = new CheckBox("Tracing") {
-    reactions += {
-      case ButtonClicked(_) => show_tracing = this.selected; handle_update(do_update, None) }
-  }
-  tracing.selected = show_tracing
-  tracing.tooltip = "Indicate output of tracing messages"
-
-  private val auto_update = new CheckBox("Auto update") {
-    reactions += {
-      case ButtonClicked(_) => do_update = this.selected; handle_update(do_update, None) }
-  }
-  auto_update.selected = do_update
-  auto_update.tooltip = "Indicate automatic update following cursor movement"
-
-  private val update = new Button("Update") {
-    reactions += { case ButtonClicked(_) => handle_update(true, None) }
-  }
-  update.tooltip = "Update display according to the command at cursor position"
-
-  private val controls = new FlowPanel(FlowPanel.Alignment.Right)(zoom, tracing, auto_update, update)
-  add(controls.peer, BorderLayout.NORTH)
-}