generic HTML_Panel -- specific Results_Dockable;
authorwenzelm
Tue, 08 Dec 2009 20:14:08 +0100
changeset 34765 63ba7f0931e2
parent 34764 581e919c8730
child 34766 4f9bcd4b5bd1
generic HTML_Panel -- specific Results_Dockable;
src/Tools/jEdit/src/jedit/results_dockable.scala
src/Tools/jEdit/src/proofdocument/html_panel.scala
--- a/src/Tools/jEdit/src/jedit/results_dockable.scala	Tue Dec 08 20:13:07 2009 +0100
+++ b/src/Tools/jEdit/src/jedit/results_dockable.scala	Tue Dec 08 20:14:08 2009 +0100
@@ -1,38 +1,25 @@
 /*
- * Dockable window with rendered state output
+ * Dockable window with result message output
  *
- * @author Fabian Immler, TU Munich
- * @author Johannes Hölzl, TU Munich
+ * @author Makarius
  */
 
 package isabelle.jedit
 
 
-import isabelle.XML
+import isabelle.proofdocument.HTML_Panel
 
+import scala.io.Source
 import scala.swing.{BorderPanel, Component}
 
-import java.io.StringReader
-import java.awt.{BorderLayout, Dimension}
-import javax.swing.{JButton, JPanel, JScrollPane}
-import java.util.logging.{Logger, Level}
+import java.awt.Dimension
 
-import org.lobobrowser.html.parser._
-import org.lobobrowser.html.test._
-import org.lobobrowser.html.gui._
-import org.lobobrowser.html._
-import org.lobobrowser.html.style.CSSUtilities
-import org.lobobrowser.html.domimpl.{HTMLDocumentImpl, HTMLStyleElementImpl, NodeImpl}
-
-import org.gjt.sp.jedit.jEdit
 import org.gjt.sp.jedit.View
 import org.gjt.sp.jedit.gui.DockableWindowManager
-import org.gjt.sp.jedit.textarea.AntiAlias
-
-import scala.io.Source
 
 
-class Results_Dockable(view : View, position : String) extends BorderPanel
+
+class Results_Dockable(view: View, position: String) extends BorderPanel
 {
   // outer panel
 
@@ -40,74 +27,16 @@
     preferredSize = new Dimension(500, 250)
 
 
-  // global logging
-  
-  Logger.getLogger("org.lobobrowser").setLevel(Level.WARNING)
-
-
-  // document template with styles
-
-  private def try_file(name: String): String =
-  {
-    val file = Isabelle.system.platform_file(name)
-    if (file.exists) Source.fromFile(file).mkString else ""
-  }
-
-
   // HTML panel
 
-  val panel = new HtmlPanel
-  val ucontext = new SimpleUserAgentContext
-  val rcontext = new SimpleHtmlRendererContext(panel, ucontext)
-  val doc = {
-    val builder = new DocumentBuilderImpl(ucontext, rcontext)
-    builder.parse(new InputSourceImpl(new StringReader(
-      """<?xml version="1.0" encoding="utf-8"?>
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
-  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml">
-<head>
-<style media="all" type="text/css">
-""" +
-  try_file("$ISABELLE_HOME/lib/html/isabelle.css") + "\n" +
-"""
-body {
-  font-family: IsabelleText;
-  font-size: 14pt;
-}
-""" +
-  try_file("$ISABELLE_HOME_USER/etc/isabelle.css") + "\n" +
-"""
-</style>
-</head>
-</html>
-""")))
-  }
+  val html_panel = new HTML_Panel(Isabelle.system, Isabelle.Int_Property("font-size"))
+  add(Component.wrap(html_panel), BorderPanel.Position.Center)
 
-  val empty_body = XML.document_node(doc, XML.elem(HTML.BODY))
-  doc.appendChild(empty_body)
-
-  panel.setDocument(doc, rcontext)
-
-  add(Component.wrap(panel), BorderPanel.Position.Center)
-
-  
-  // register for state-view
   Isabelle.plugin.state_update += (cmd => {
     val theory_view = Isabelle.prover_setup(view.getBuffer).get.theory_view
-
-    Swing_Thread.later {
-      val node =
-        if (cmd == null) empty_body
-        else {
-          val xml = XML.elem(HTML.BODY,
-            cmd.results(theory_view.current_document).
-              map((t: XML.Tree) => XML.elem(HTML.PRE, HTML.spans(t))))
-          XML.document_node(doc, xml)
-        }
-      doc.removeChild(doc.getLastChild())
-      doc.appendChild(node)
-      panel.delayedRelayout(node.asInstanceOf[NodeImpl])
-    }
+    val body =
+      if (cmd == null) Nil  // FIXME ??
+      else cmd.results(theory_view.current_document)
+    html_panel.render(body)
   })
 }
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/Tools/jEdit/src/proofdocument/html_panel.scala	Tue Dec 08 20:14:08 2009 +0100
@@ -0,0 +1,104 @@
+/*
+ * HTML panel based on Lobo/Cobra
+ *
+ * @author Makarius
+ */
+
+package isabelle.proofdocument
+
+
+import java.io.StringReader
+import java.awt.{BorderLayout, Dimension}
+import javax.swing.{JButton, JPanel, JScrollPane}
+import java.util.logging.{Logger, Level}
+
+import org.w3c.dom.Document
+
+import org.lobobrowser.html.parser.{DocumentBuilderImpl, InputSourceImpl}
+import org.lobobrowser.html.gui.HtmlPanel
+import org.lobobrowser.html.domimpl.{HTMLDocumentImpl, HTMLStyleElementImpl, NodeImpl}
+import org.lobobrowser.html.test.{SimpleHtmlRendererContext, SimpleUserAgentContext}
+
+import scala.io.Source
+import scala.actors.Actor._
+
+
+class HTML_Panel(sys: Isabelle_System, initial_font_size: Int) extends HtmlPanel
+{
+  // global logging
+  Logger.getLogger("org.lobobrowser").setLevel(Level.WARNING)
+
+
+  /* document template */
+
+  private def try_file(name: String): String =
+  {
+    val file = sys.platform_file(name)
+    if (file.exists) Source.fromFile(file).mkString else ""
+  }
+
+  private def template(font_size: Int): String =
+    """<?xml version="1.0" encoding="utf-8"?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+<head>
+<style media="all" type="text/css">""" +
+  try_file("$ISABELLE_HOME/lib/html/isabelle.css") + "\n" +
+  "body { font-family: " + sys.font_family + "; font-size: " + font_size + "px }\n" +
+  try_file("$ISABELLE_HOME_USER/etc/isabelle.css") + "\n" +
+"""
+</style>
+</head>
+<body/>
+</html>
+"""
+
+
+  /* actor with local state */
+
+  private val ucontext = new SimpleUserAgentContext
+  private val rcontext = new SimpleHtmlRendererContext(this, ucontext)
+  private val builder = new DocumentBuilderImpl(ucontext, rcontext)
+
+  private case class Init(font_size: Int)
+  private case class Render(body: List[XML.Tree])
+
+  private val main_actor = actor {
+    // double buffering
+    var doc1: Document = null
+    var doc2: Document = null
+
+    loop {
+      react {
+        case Init(font_size) =>
+          val src = template(font_size)
+          def parse() = builder.parse(new InputSourceImpl(new StringReader(src)))
+          doc1 = parse()
+          doc2 = parse()
+          Swing_Thread.now { setDocument(doc1, rcontext) }
+          
+        case Render(body) =>
+          val doc = doc2
+          val node =
+            XML.document_node(doc,
+              XML.elem(HTML.BODY, body.map((t: XML.Tree) => XML.elem(HTML.PRE, HTML.spans(t)))))
+          doc.removeChild(doc.getLastChild())
+          doc.appendChild(node)
+          doc2 = doc1
+          doc1 = doc
+          Swing_Thread.now { setDocument(doc1, rcontext) }
+
+        case bad => System.err.println("prover: ignoring bad message " + bad)
+      }
+    }
+  }
+
+  main_actor ! Init(initial_font_size)
+  
+
+  /* main method wrappers */
+  
+  def init(font_size: Int) { main_actor ! Init(font_size) }
+  def render(body: List[XML.Tree]) { main_actor ! Render(body) }
+}