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