src/Tools/jEdit/src/sledgehammer_dockable.scala

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/*  Title:      Tools/jEdit/src/sledgehammer_dockable.scala
    Author:     Makarius

Dockable window for Sledgehammer.
*/

package isabelle.jedit


import isabelle._

import scala.swing.{Component, Label}

import java.awt.BorderLayout
import java.awt.event.KeyEvent

import org.gjt.sp.jedit.View
import org.gjt.sp.jedit.gui.HistoryTextField


class Sledgehammer_Dockable(view: View, position: String) extends Dockable(view, position) {
  dockable =>

  GUI_Thread.require {}


  /* output text area */

  private val output: Output_Area = new Output_Area(view)

  override def detach_operation: Option[() => Unit] = output.pretty_text_area.detach_operation

  output.setup(dockable)
  set_content(output.text_pane)


  /* query operation */

  private val process_indicator = new Process_Indicator

  private def consume_status(status: Query_Operation.Status): Unit = {
    status match {
      case Query_Operation.Status.waiting =>
        process_indicator.update("Waiting for evaluation of context ...", 5)
      case Query_Operation.Status.running =>
        process_indicator.update("Sledgehammering ...", 15)
      case Query_Operation.Status.finished =>
        process_indicator.update(null, 0)
    }
  }

  private val sledgehammer =
    new Query_Operation(PIDE.editor, view, "sledgehammer", consume_status,
      output.pretty_text_area.update)


  /* controls */

  private def hammer(): Unit = {
    provers.addCurrentToHistory()
    PIDE.options.string("sledgehammer_provers") = provers.getText
    sledgehammer.apply_query(
      List(provers.getText, isar_proofs.selected.toString, try0.selected.toString))
  }

  private val provers_label = new Label("Provers:") {
    tooltip =
      GUI.tooltip_lines(
        "Automatic provers as space-separated list, e.g.\n" +
          PIDE.options.value.check_name("sledgehammer_provers").default_value)
  }

  private val provers = new HistoryTextField("isabelle-sledgehammer-provers") {
    override def processKeyEvent(evt: KeyEvent): Unit = {
      if (evt.getID == KeyEvent.KEY_PRESSED && evt.getKeyCode == KeyEvent.VK_ENTER) hammer()
      super.processKeyEvent(evt)
    }
    setToolTipText(provers_label.tooltip)
    setColumns(30)
  }

  private def update_provers(): Unit = {
    val new_provers = PIDE.options.string("sledgehammer_provers")
    if (new_provers != provers.getText) {
      provers.setText(new_provers)
      if (provers.getCaret != null)
        provers.getCaret.setDot(0)
    }
  }

  private val isar_proofs = new GUI.Check("Isar proofs") {
    tooltip = "Specify whether Isar proofs should be output in addition to \"by\" one-liner"
  }

  private val try0 = new GUI.Check("Try methods", init = true) {
    tooltip = "Try standard proof methods like \"auto\" and \"blast\" as alternatives to \"metis\""
  }

  private val apply_query = new GUI.Button(GUI.Style_HTML.enclose_bold("Apply")) {
    tooltip = "Search for first-order proof using automatic theorem provers"
    override def clicked(): Unit = hammer()
  }

  private val cancel_query = new GUI.Button("Cancel") {
    tooltip = "Interrupt unfinished sledgehammering"
    override def clicked(): Unit = sledgehammer.cancel_query()
  }

  private val locate_query = new GUI.Button("Locate") {
    tooltip = "Locate context of current query within source text"
    override def clicked(): Unit = sledgehammer.locate_query()
  }

  private val controls =
    Wrap_Panel(
      List(provers_label, Component.wrap(provers), isar_proofs, try0,
        process_indicator.component, apply_query, cancel_query, locate_query,
        output.pretty_text_area.zoom_component))

  add(controls.peer, BorderLayout.NORTH)

  override def focusOnDefaultComponent(): Unit = provers.requestFocus()


  /* main */

  private val main =
    Session.Consumer[Session.Global_Options](getClass.getName) {
      case _: Session.Global_Options =>
        GUI_Thread.later { update_provers(); output.handle_resize() }
    }

  override def init(): Unit = {
    PIDE.session.global_options += main
    update_provers()
    output.init()
    sledgehammer.activate()
  }

  override def exit(): Unit = {
    sledgehammer.deactivate()
    PIDE.session.global_options -= main
    output.exit()
  }
}