src/Tools/jEdit/src/session_dockable.scala
author wenzelm
Mon Sep 19 21:53:07 2011 +0200 (2011-09-19)
changeset 44990 3aa261a3c7d6
parent 44989 5450ab3c677e
child 44991 d88f7fc62a40
permissions -rw-r--r--
tuned;
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/*  Title:      Tools/jEdit/src/session_dockable.scala
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    Author:     Makarius
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Dockable window for prover session management.
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*/
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package isabelle.jedit
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import isabelle._
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import scala.actors.Actor._
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import scala.swing.{FlowPanel, Button, TextArea, Label, ListView, Alignment,
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  ScrollPane, TabbedPane, Component, Swing}
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import scala.swing.event.{ButtonClicked, SelectionChanged}
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import java.lang.System
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import java.awt.{BorderLayout, Graphics2D, Insets}
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import javax.swing.{JList, DefaultListCellRenderer, BorderFactory}
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import javax.swing.border.{BevelBorder, SoftBevelBorder}
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import org.gjt.sp.jedit.{View, jEdit}
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class Session_Dockable(view: View, position: String) extends Dockable(view: View, position: String)
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{
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  /* main tabs */
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  private val readme = new HTML_Panel("SansSerif", 14)
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  readme.render_document(Isabelle_System.try_read(List(Path.explode("$JEDIT_HOME/README.html"))))
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  val status = new ListView(Nil: List[Document.Node.Name])
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  status.peer.setLayoutOrientation(JList.VERTICAL_WRAP)
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  status.selection.intervalMode = ListView.IntervalMode.Single
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  private val syslog = new TextArea(Isabelle.session.syslog())
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  private val tabs = new TabbedPane {
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    pages += new TabbedPane.Page("README", Component.wrap(readme))
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    pages += new TabbedPane.Page("Theory Status", new ScrollPane(status))
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    pages += new TabbedPane.Page("System Log", new ScrollPane(syslog))
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    selection.index =
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    {
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      val index = Isabelle.Int_Property("session-panel.selection", 0)
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      if (index >= pages.length) 0 else index
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    }
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    listenTo(selection)
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    reactions += {
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      case SelectionChanged(_) =>
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        Isabelle.Int_Property("session-panel.selection") = selection.index
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    }
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  }
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  set_content(tabs)
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  /* controls */
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  val session_phase = new Label(Isabelle.session.phase.toString)
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  session_phase.border = new SoftBevelBorder(BevelBorder.LOWERED)
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  session_phase.tooltip = "Prover status"
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  private val cancel = new Button("Cancel") {
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    reactions += { case ButtonClicked(_) => Isabelle.cancel_execution() }
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  }
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  cancel.tooltip = jEdit.getProperty("isabelle.cancel-execution.label")
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  private val check = new Button("Check") {
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    reactions += { case ButtonClicked(_) => Isabelle.check_buffer(view.getBuffer) }
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  }
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  check.tooltip = jEdit.getProperty("isabelle.check-buffer.label")
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  private val logic = Isabelle.logic_selector(Isabelle.Property("logic"))
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  logic.listenTo(logic.selection)
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  logic.reactions += {
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    case SelectionChanged(_) => Isabelle.Property("logic") = logic.selection.item.name
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  }
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  private val controls =
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    new FlowPanel(FlowPanel.Alignment.Right)(check, cancel, session_phase, logic)
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  add(controls.peer, BorderLayout.NORTH)
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  /* component state -- owned by Swing thread */
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  private var nodes_status: Map[Document.Node.Name, Isar_Document.Node_Status] = Map.empty
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  private object Node_Renderer_Component extends Label
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  {
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    opaque = false
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    xAlignment = Alignment.Leading
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    border = BorderFactory.createEmptyBorder(2, 2, 2, 2)
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    var node_name = Document.Node.Name.empty
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    override def paintComponent(gfx: Graphics2D)
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    {
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      nodes_status.get(node_name) match {
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        case Some(st) if st.total > 0 =>
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          val size = peer.getSize()
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          val insets = border.getBorderInsets(this.peer)
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          val w = size.width - insets.left - insets.right
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          val h = size.height - insets.top - insets.bottom
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          var end = size.width - insets.right
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          for {
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            (n, color) <- List(
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              (st.unprocessed, Isabelle_Markup.unprocessed1_color),
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              (st.running, Isabelle_Markup.running_color),
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              (st.failed, Isabelle_Markup.error_color)) }
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          {
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            gfx.setColor(color)
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            val v = (n * w / st.total) max (if (n > 0) 2 else 0)
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            gfx.fillRect(end - v, insets.top, v, h)
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            end -= v
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          }
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        case _ =>
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      }
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      super.paintComponent(gfx)
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    }
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  }
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  private class Node_Renderer extends ListView.Renderer[Document.Node.Name]
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  {
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    def componentFor(list: ListView[_], isSelected: Boolean, focused: Boolean,
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      name: Document.Node.Name, index: Int): Component =
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    {
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      val component = Node_Renderer_Component
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      component.node_name = name
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      component.text = name.theory
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      component
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    }
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  }
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  status.renderer = new Node_Renderer
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  private def handle_changed(changed_nodes: Set[Document.Node.Name])
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  {
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    Swing_Thread.now {
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      // FIXME correlation to changed_nodes!?
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      val snapshot = Isabelle.session.snapshot()
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      var nodes_status1 = nodes_status
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      for {
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        name <- changed_nodes
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        node <- snapshot.version.nodes.get(name)
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        val status = Isar_Document.node_status(snapshot.state, snapshot.version, node)
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      } nodes_status1 += (name -> status)
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      if (nodes_status != nodes_status1) {
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        nodes_status = nodes_status1
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        status.listData =
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          snapshot.version.topological_order.filter(
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            (name: Document.Node.Name) => nodes_status.isDefinedAt(name))
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      }
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    }
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  }
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  /* main actor */
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  private val main_actor = actor {
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    loop {
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      react {
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        case result: Isabelle_Process.Result =>
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          if (result.is_syslog)
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            Swing_Thread.now {
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              val text = Isabelle.session.syslog()
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              if (text != syslog.text) {
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                syslog.text = text
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              }
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            }
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        case phase: Session.Phase =>
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          Swing_Thread.now { session_phase.text = " " + phase.toString + " " }
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        case changed: Session.Commands_Changed => handle_changed(changed.nodes)
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        case bad => System.err.println("Session_Dockable: ignoring bad message " + bad)
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      }
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    }
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  }
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  override def init() {
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    Isabelle.session.syslog_messages += main_actor
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    Isabelle.session.phase_changed += main_actor
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    Isabelle.session.commands_changed += main_actor
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  }
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  override def exit() {
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    Isabelle.session.syslog_messages -= main_actor
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    Isabelle.session.phase_changed -= main_actor
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    Isabelle.session.commands_changed -= main_actor
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  }
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}