/* Title: Tools/jEdit/src/find_dockable.scala
Author: Makarius
Dockable window for "find" dialog.
*/
package isabelle.jedit
import isabelle._
import scala.actors.Actor._
import scala.swing.{Button, Component, TextField, CheckBox, Label, ComboBox}
import scala.swing.event.ButtonClicked
import java.awt.BorderLayout
import java.awt.event.{ComponentEvent, ComponentAdapter, KeyEvent}
import org.gjt.sp.jedit.View
class Find_Dockable(view: View, position: String) extends Dockable(view, position)
{
val pretty_text_area = new Pretty_Text_Area(view)
set_content(pretty_text_area)
/* query operation */
private val process_indicator = new Process_Indicator
private def consume_status(status: Query_Operation.Status.Value)
{
status match {
case Query_Operation.Status.WAITING =>
process_indicator.update("Waiting for evaluation of context ...", 5)
case Query_Operation.Status.RUNNING =>
process_indicator.update("Running find operation ...", 15)
case Query_Operation.Status.FINISHED =>
process_indicator.update(null, 0)
}
}
private val find_theorems =
new Query_Operation(PIDE.editor, view, "find_theorems", consume_status _,
(snapshot, results, body) =>
pretty_text_area.update(snapshot, results, Pretty.separate(body)))
/* resize */
private var zoom_factor = 100
private def handle_resize()
{
Swing_Thread.require()
pretty_text_area.resize(Rendering.font_family(),
(Rendering.font_size("jedit_font_scale") * zoom_factor / 100).round)
}
private val delay_resize =
Swing_Thread.delay_first(PIDE.options.seconds("editor_update_delay")) { handle_resize() }
addComponentListener(new ComponentAdapter {
override def componentResized(e: ComponentEvent) { delay_resize.invoke() }
})
/* main actor */
private val main_actor = actor {
loop {
react {
case _: Session.Global_Options =>
Swing_Thread.later { handle_resize() }
case bad =>
System.err.println("Find_Dockable: ignoring bad message " + bad)
}
}
}
override def init()
{
PIDE.session.global_options += main_actor
handle_resize()
find_theorems.activate()
}
override def exit()
{
find_theorems.deactivate()
PIDE.session.global_options -= main_actor
delay_resize.revoke()
}
/* controls */
private def clicked {
find_theorems.apply_query(
List(limit.text, allow_dups.selected.toString, context.selection.item.name, query.getText))
}
private val query_label = new Label("Search criteria:") {
tooltip =
GUI.tooltip_lines(List(
"Search criteria for find operation, e.g.",
"",
" \"_ = _\" \"op +\" name: Group -name: monoid"))
}
private val query = new Completion_Popup.History_Text_Field("isabelle-find-theorems") {
override def processKeyEvent(evt: KeyEvent)
{
if (evt.getID == KeyEvent.KEY_PRESSED && evt.getKeyCode == KeyEvent.VK_ENTER) clicked
super.processKeyEvent(evt)
}
{ val max = getPreferredSize; max.width = Integer.MAX_VALUE; setMaximumSize(max) }
setColumns(40)
setToolTipText(query_label.tooltip)
setFont(GUI.imitate_font(Rendering.font_family(), getFont, 1.2))
}
private case class Context_Entry(val name: String, val description: String)
{
override def toString = description
}
private val context_entries =
new Context_Entry("", "current context") ::
PIDE.thy_load.loaded_theories.toList.sorted.map(name => Context_Entry(name, name))
private val context = new ComboBox[Context_Entry](context_entries) {
tooltip = "Search in pre-loaded theory (default: context of current command)"
}
private val limit = new TextField(PIDE.options.int("find_theorems_limit").toString, 5) {
tooltip = "Limit of displayed results"
verifier = (s: String) =>
s match { case Properties.Value.Int(x) => x >= 0 case _ => false }
}
private val allow_dups = new CheckBox("Duplicates") {
tooltip = "Show all versions of matching theorems"
selected = false
}
private val apply_query = new Button("Apply") {
tooltip = "Find theorems meeting specified criteria"
reactions += { case ButtonClicked(_) => clicked }
}
private val zoom = new GUI.Zoom_Box(factor => { zoom_factor = factor; handle_resize() }) {
tooltip = "Zoom factor for output font size"
}
private val controls =
new Wrap_Panel(Wrap_Panel.Alignment.Right)(
query_label, Component.wrap(query), context, limit, allow_dups,
process_indicator.component, apply_query, zoom)
add(controls.peer, BorderLayout.NORTH)
override def focusOnDefaultComponent { query.requestFocus }
}