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/* Title: Tools/jEdit/src/state_dockable.scala
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Author: Makarius
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Dockable window for proof state output.
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*/
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package isabelle.jedit
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import isabelle._
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import scala.swing.{Button, CheckBox}
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import scala.swing.event.ButtonClicked
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import java.awt.BorderLayout
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import java.awt.event.{ComponentEvent, ComponentAdapter}
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import org.gjt.sp.jedit.View
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class State_Dockable(view: View, position: String) extends Dockable(view, position)
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{
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GUI_Thread.require {}
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/* text area */
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val pretty_text_area = new Pretty_Text_Area(view)
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set_content(pretty_text_area)
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override def detach_operation = pretty_text_area.detach_operation
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private val print_state =
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new Query_Operation(JEdit_Editor, view, "print_state", _ => (),
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(snapshot, results, body) =>
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pretty_text_area.update(snapshot, results, Pretty.separate(body)))
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/* resize */
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private val delay_resize =
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GUI_Thread.delay_first(PIDE.options.seconds("editor_update_delay")) { handle_resize() }
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addComponentListener(new ComponentAdapter {
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override def componentResized(e: ComponentEvent) { delay_resize.invoke() }
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override def componentShown(e: ComponentEvent) { delay_resize.invoke() }
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})
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private def handle_resize()
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{
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GUI_Thread.require {}
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pretty_text_area.resize(
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Font_Info.main(PIDE.options.real("jedit_font_scale") * zoom.factor / 100))
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}
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/* update */
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def update_request(): Unit =
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GUI_Thread.require { print_state.apply_query(Nil) }
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def update()
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{
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GUI_Thread.require {}
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Document_Model.get(view.getBuffer).map(_.snapshot()) match {
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case Some(snapshot) =>
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(JEdit_Editor.current_command(view, snapshot), print_state.get_location) match {
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case (Some(command1), Some(command2)) if command1.id == command2.id =>
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case _ => update_request()
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}
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case None =>
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}
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}
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/* auto update */
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private var auto_update_enabled = true
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private def auto_update(): Unit =
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GUI_Thread.require { if (auto_update_enabled) update() }
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/* controls */
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private val auto_update_button = new CheckBox("Auto update") {
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tooltip = "Indicate automatic update following cursor movement"
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reactions += { case ButtonClicked(_) => auto_update_enabled = this.selected; auto_update() }
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selected = auto_update_enabled
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}
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private val update_button = new Button("<html><b>Update</b></html>") {
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tooltip = "Update display according to the command at cursor position"
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reactions += { case ButtonClicked(_) => update_request() }
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}
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private val locate_button = new Button("Locate") {
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tooltip = "Locate printed command within source text"
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reactions += { case ButtonClicked(_) => print_state.locate_query() }
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}
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private val zoom = new Font_Info.Zoom_Box { def changed = handle_resize() }
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private val controls =
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new Wrap_Panel(Wrap_Panel.Alignment.Right)(auto_update_button, update_button,
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locate_button, pretty_text_area.search_label, pretty_text_area.search_field, zoom)
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add(controls.peer, BorderLayout.NORTH)
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/* main */
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private val main =
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Session.Consumer[Any](getClass.getName) {
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case _: Session.Global_Options =>
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GUI_Thread.later { handle_resize() }
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case changed: Session.Commands_Changed =>
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if (changed.assignment) GUI_Thread.later { auto_update() }
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case Session.Caret_Focus =>
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GUI_Thread.later { auto_update() }
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}
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override def init()
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{
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PIDE.session.global_options += main
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PIDE.session.commands_changed += main
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PIDE.session.caret_focus += main
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handle_resize()
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print_state.activate()
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auto_update()
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}
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override def exit()
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{
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print_state.deactivate()
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PIDE.session.caret_focus -= main
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PIDE.session.global_options -= main
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PIDE.session.commands_changed -= main
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delay_resize.revoke()
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}
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}
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