isabelle: src/Tools/jEdit/src/jedit/html_panel.scala@8b4617ad1593 (annotated)

36760 b82a698ef6c9 tuned headers; wenzelm parents: 36735 diff changeset	1	/* Title: Tools/jEdit/src/jedit/html_panel.scala
b82a698ef6c9 tuned headers; wenzelm parents: 36735 diff changeset	2	Author: Makarius
b82a698ef6c9 tuned headers; wenzelm parents: 36735 diff changeset	3
b82a698ef6c9 tuned headers; wenzelm parents: 36735 diff changeset	4	HTML panel based on Lobo/Cobra.
b82a698ef6c9 tuned headers; wenzelm parents: 36735 diff changeset	5	*/
34765 63ba7f0931e2 generic HTML_Panel -- specific Results_Dockable; wenzelm parents: diff changeset	6
34871 e596a0b71f3c incorporate "proofdocument" part into main Isabelle/Pure.jar -- except for html_panel.scala, which depends on external library (Lobo/Cobra browser); wenzelm parents: 34823 diff changeset	7	package isabelle.jedit
34765 63ba7f0931e2 generic HTML_Panel -- specific Results_Dockable; wenzelm parents: diff changeset	8
63ba7f0931e2 generic HTML_Panel -- specific Results_Dockable; wenzelm parents: diff changeset	9
36015 6111de7c916a adapted to Scala 2.8.0 Beta 1; wenzelm parents: 34871 diff changeset	10	import isabelle._
6111de7c916a adapted to Scala 2.8.0 Beta 1; wenzelm parents: 34871 diff changeset	11
34765 63ba7f0931e2 generic HTML_Panel -- specific Results_Dockable; wenzelm parents: diff changeset	12	import java.io.StringReader
37164 8b4617ad1593 reuse main view.font from jEdit; wenzelm parents: 37069 diff changeset	13	import java.awt.{Font, BorderLayout, Dimension, GraphicsEnvironment, Toolkit, FontMetrics}
34775 49245d68f7e4 basic setup for HTML_Panel event handling; wenzelm parents: 34770 diff changeset	14	import java.awt.event.MouseEvent
49245d68f7e4 basic setup for HTML_Panel event handling; wenzelm parents: 34770 diff changeset	15
34765 63ba7f0931e2 generic HTML_Panel -- specific Results_Dockable; wenzelm parents: diff changeset	16	import java.util.logging.{Logger, Level}
63ba7f0931e2 generic HTML_Panel -- specific Results_Dockable; wenzelm parents: diff changeset	17
34775 49245d68f7e4 basic setup for HTML_Panel event handling; wenzelm parents: 34770 diff changeset	18	import org.w3c.dom.html2.HTMLElement
34765 63ba7f0931e2 generic HTML_Panel -- specific Results_Dockable; wenzelm parents: diff changeset	19
63ba7f0931e2 generic HTML_Panel -- specific Results_Dockable; wenzelm parents: diff changeset	20	import org.lobobrowser.html.parser.{DocumentBuilderImpl, InputSourceImpl}
63ba7f0931e2 generic HTML_Panel -- specific Results_Dockable; wenzelm parents: diff changeset	21	import org.lobobrowser.html.gui.HtmlPanel
63ba7f0931e2 generic HTML_Panel -- specific Results_Dockable; wenzelm parents: diff changeset	22	import org.lobobrowser.html.domimpl.{HTMLDocumentImpl, HTMLStyleElementImpl, NodeImpl}
63ba7f0931e2 generic HTML_Panel -- specific Results_Dockable; wenzelm parents: diff changeset	23	import org.lobobrowser.html.test.{SimpleHtmlRendererContext, SimpleUserAgentContext}
63ba7f0931e2 generic HTML_Panel -- specific Results_Dockable; wenzelm parents: diff changeset	24
63ba7f0931e2 generic HTML_Panel -- specific Results_Dockable; wenzelm parents: diff changeset	25	import scala.actors.Actor._
63ba7f0931e2 generic HTML_Panel -- specific Results_Dockable; wenzelm parents: diff changeset	26
63ba7f0931e2 generic HTML_Panel -- specific Results_Dockable; wenzelm parents: diff changeset	27
34775 49245d68f7e4 basic setup for HTML_Panel event handling; wenzelm parents: 34770 diff changeset	28	object HTML_Panel
49245d68f7e4 basic setup for HTML_Panel event handling; wenzelm parents: 34770 diff changeset	29	{
49245d68f7e4 basic setup for HTML_Panel event handling; wenzelm parents: 34770 diff changeset	30	sealed abstract class Event { val element: HTMLElement; val mouse: MouseEvent }
49245d68f7e4 basic setup for HTML_Panel event handling; wenzelm parents: 34770 diff changeset	31	case class Context_Menu(val element: HTMLElement, mouse: MouseEvent) extends Event
49245d68f7e4 basic setup for HTML_Panel event handling; wenzelm parents: 34770 diff changeset	32	case class Mouse_Click(val element: HTMLElement, mouse: MouseEvent) extends Event
49245d68f7e4 basic setup for HTML_Panel event handling; wenzelm parents: 34770 diff changeset	33	case class Double_Click(val element: HTMLElement, mouse: MouseEvent) extends Event
49245d68f7e4 basic setup for HTML_Panel event handling; wenzelm parents: 34770 diff changeset	34	case class Mouse_Over(val element: HTMLElement, mouse: MouseEvent) extends Event
49245d68f7e4 basic setup for HTML_Panel event handling; wenzelm parents: 34770 diff changeset	35	case class Mouse_Out(val element: HTMLElement, mouse: MouseEvent) extends Event
49245d68f7e4 basic setup for HTML_Panel event handling; wenzelm parents: 34770 diff changeset	36	}
49245d68f7e4 basic setup for HTML_Panel event handling; wenzelm parents: 34770 diff changeset	37
49245d68f7e4 basic setup for HTML_Panel event handling; wenzelm parents: 34770 diff changeset	38
37164 8b4617ad1593 reuse main view.font from jEdit; wenzelm parents: 37069 diff changeset	39	class HTML_Panel(
8b4617ad1593 reuse main view.font from jEdit; wenzelm parents: 37069 diff changeset	40	system: Isabelle_System,
8b4617ad1593 reuse main view.font from jEdit; wenzelm parents: 37069 diff changeset	41	initial_font_family: String,
8b4617ad1593 reuse main view.font from jEdit; wenzelm parents: 37069 diff changeset	42	initial_font_size: Int)
8b4617ad1593 reuse main view.font from jEdit; wenzelm parents: 37069 diff changeset	43	extends HtmlPanel
34765 63ba7f0931e2 generic HTML_Panel -- specific Results_Dockable; wenzelm parents: diff changeset	44	{
37034 9640f6546179 more systematic treatment of internal state, which belongs strictly to the main actor, not the Swing thread; wenzelm parents: 37016 diff changeset	45	/ Lobo setup /
9640f6546179 more systematic treatment of internal state, which belongs strictly to the main actor, not the Swing thread; wenzelm parents: 37016 diff changeset	46
9640f6546179 more systematic treatment of internal state, which belongs strictly to the main actor, not the Swing thread; wenzelm parents: 37016 diff changeset	47	/* global logging */
9640f6546179 more systematic treatment of internal state, which belongs strictly to the main actor, not the Swing thread; wenzelm parents: 37016 diff changeset	48
34765 63ba7f0931e2 generic HTML_Panel -- specific Results_Dockable; wenzelm parents: diff changeset	49	Logger.getLogger("org.lobobrowser").setLevel(Level.WARNING)
63ba7f0931e2 generic HTML_Panel -- specific Results_Dockable; wenzelm parents: diff changeset	50
63ba7f0931e2 generic HTML_Panel -- specific Results_Dockable; wenzelm parents: diff changeset	51
37034 9640f6546179 more systematic treatment of internal state, which belongs strictly to the main actor, not the Swing thread; wenzelm parents: 37016 diff changeset	52	/* pixel size -- cf. org.lobobrowser.html.style.HtmlValues.getFontSize */
36817 ed97e877ff2d more precise pretty printing based on actual font metrics; wenzelm parents: 36814 diff changeset	53
ed97e877ff2d more precise pretty printing based on actual font metrics; wenzelm parents: 36814 diff changeset	54	val screen_resolution =
ed97e877ff2d more precise pretty printing based on actual font metrics; wenzelm parents: 36814 diff changeset	55	if (GraphicsEnvironment.isHeadless()) 72
ed97e877ff2d more precise pretty printing based on actual font metrics; wenzelm parents: 36814 diff changeset	56	else Toolkit.getDefaultToolkit().getScreenResolution()
ed97e877ff2d more precise pretty printing based on actual font metrics; wenzelm parents: 36814 diff changeset	57
ed97e877ff2d more precise pretty printing based on actual font metrics; wenzelm parents: 36814 diff changeset	58	def lobo_px(raw_px: Int): Int = raw_px * 96 / screen_resolution
ed97e877ff2d more precise pretty printing based on actual font metrics; wenzelm parents: 36814 diff changeset	59	def raw_px(lobo_px: Int): Int = (lobo_px * screen_resolution + 95) / 96
ed97e877ff2d more precise pretty printing based on actual font metrics; wenzelm parents: 36814 diff changeset	60
ed97e877ff2d more precise pretty printing based on actual font metrics; wenzelm parents: 36814 diff changeset	61
37036 49559c4e85f9 HTML_Panel.handler as overridable method; wenzelm parents: 37034 diff changeset	62	/* contexts and event handling */
49559c4e85f9 HTML_Panel.handler as overridable method; wenzelm parents: 37034 diff changeset	63
49559c4e85f9 HTML_Panel.handler as overridable method; wenzelm parents: 37034 diff changeset	64	protected val handler: PartialFunction[HTML_Panel.Event, Unit] = Library.undefined
49559c4e85f9 HTML_Panel.handler as overridable method; wenzelm parents: 37034 diff changeset	65
36993 b7cce32953f0 more systematic treatment of physical document wrt. font size etc.; wenzelm parents: 36992 diff changeset	66	private val ucontext = new SimpleUserAgentContext
b7cce32953f0 more systematic treatment of physical document wrt. font size etc.; wenzelm parents: 36992 diff changeset	67	private val rcontext = new SimpleHtmlRendererContext(this, ucontext)
b7cce32953f0 more systematic treatment of physical document wrt. font size etc.; wenzelm parents: 36992 diff changeset	68	{
b7cce32953f0 more systematic treatment of physical document wrt. font size etc.; wenzelm parents: 36992 diff changeset	69	private def handle(event: HTML_Panel.Event): Boolean =
37036 49559c4e85f9 HTML_Panel.handler as overridable method; wenzelm parents: 37034 diff changeset	70	if (handler.isDefinedAt(event)) { handler(event); true }
36993 b7cce32953f0 more systematic treatment of physical document wrt. font size etc.; wenzelm parents: 36992 diff changeset	71	else false
b7cce32953f0 more systematic treatment of physical document wrt. font size etc.; wenzelm parents: 36992 diff changeset	72
b7cce32953f0 more systematic treatment of physical document wrt. font size etc.; wenzelm parents: 36992 diff changeset	73	override def onContextMenu(elem: HTMLElement, event: MouseEvent): Boolean =
b7cce32953f0 more systematic treatment of physical document wrt. font size etc.; wenzelm parents: 36992 diff changeset	74	handle(HTML_Panel.Context_Menu(elem, event))
b7cce32953f0 more systematic treatment of physical document wrt. font size etc.; wenzelm parents: 36992 diff changeset	75	override def onMouseClick(elem: HTMLElement, event: MouseEvent): Boolean =
b7cce32953f0 more systematic treatment of physical document wrt. font size etc.; wenzelm parents: 36992 diff changeset	76	handle(HTML_Panel.Mouse_Click(elem, event))
b7cce32953f0 more systematic treatment of physical document wrt. font size etc.; wenzelm parents: 36992 diff changeset	77	override def onDoubleClick(elem: HTMLElement, event: MouseEvent): Boolean =
b7cce32953f0 more systematic treatment of physical document wrt. font size etc.; wenzelm parents: 36992 diff changeset	78	handle(HTML_Panel.Double_Click(elem, event))
b7cce32953f0 more systematic treatment of physical document wrt. font size etc.; wenzelm parents: 36992 diff changeset	79	override def onMouseOver(elem: HTMLElement, event: MouseEvent)
b7cce32953f0 more systematic treatment of physical document wrt. font size etc.; wenzelm parents: 36992 diff changeset	80	{ handle(HTML_Panel.Mouse_Over(elem, event)) }
b7cce32953f0 more systematic treatment of physical document wrt. font size etc.; wenzelm parents: 36992 diff changeset	81	override def onMouseOut(elem: HTMLElement, event: MouseEvent)
b7cce32953f0 more systematic treatment of physical document wrt. font size etc.; wenzelm parents: 36992 diff changeset	82	{ handle(HTML_Panel.Mouse_Out(elem, event)) }
b7cce32953f0 more systematic treatment of physical document wrt. font size etc.; wenzelm parents: 36992 diff changeset	83	}
b7cce32953f0 more systematic treatment of physical document wrt. font size etc.; wenzelm parents: 36992 diff changeset	84
b7cce32953f0 more systematic treatment of physical document wrt. font size etc.; wenzelm parents: 36992 diff changeset	85	private val builder = new DocumentBuilderImpl(ucontext, rcontext)
b7cce32953f0 more systematic treatment of physical document wrt. font size etc.; wenzelm parents: 36992 diff changeset	86
b7cce32953f0 more systematic treatment of physical document wrt. font size etc.; wenzelm parents: 36992 diff changeset	87
37015 39207774a9b7 read style sheets only once; wenzelm parents: 37014 diff changeset	88	/* document template with style sheets */
34765 63ba7f0931e2 generic HTML_Panel -- specific Results_Dockable; wenzelm parents: diff changeset	89
37015 39207774a9b7 read style sheets only once; wenzelm parents: 37014 diff changeset	90	private val template_head =
34765 63ba7f0931e2 generic HTML_Panel -- specific Results_Dockable; wenzelm parents: diff changeset	91	"""<?xml version="1.0" encoding="utf-8"?>
63ba7f0931e2 generic HTML_Panel -- specific Results_Dockable; wenzelm parents: diff changeset	92	<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
63ba7f0931e2 generic HTML_Panel -- specific Results_Dockable; wenzelm parents: diff changeset	93	"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
63ba7f0931e2 generic HTML_Panel -- specific Results_Dockable; wenzelm parents: diff changeset	94	<html xmlns="http://www.w3.org/1999/xhtml">
63ba7f0931e2 generic HTML_Panel -- specific Results_Dockable; wenzelm parents: diff changeset	95	<head>
34770 0c630c52fc74 prefer options from running application; wenzelm parents: 34769 diff changeset	96	<style media="all" type="text/css">
0c630c52fc74 prefer options from running application; wenzelm parents: 34769 diff changeset	97	""" +
37058 c47653f3ec14 rendering information and style sheets via settings; wenzelm parents: 37040 diff changeset	98	system.try_read(system.getenv_strict("JEDIT_STYLE_SHEETS").split(":"))
37015 39207774a9b7 read style sheets only once; wenzelm parents: 37014 diff changeset	99
39207774a9b7 read style sheets only once; wenzelm parents: 37014 diff changeset	100	private val template_tail =
34765 63ba7f0931e2 generic HTML_Panel -- specific Results_Dockable; wenzelm parents: diff changeset	101	"""
63ba7f0931e2 generic HTML_Panel -- specific Results_Dockable; wenzelm parents: diff changeset	102	</style>
63ba7f0931e2 generic HTML_Panel -- specific Results_Dockable; wenzelm parents: diff changeset	103	</head>
63ba7f0931e2 generic HTML_Panel -- specific Results_Dockable; wenzelm parents: diff changeset	104	<body/>
63ba7f0931e2 generic HTML_Panel -- specific Results_Dockable; wenzelm parents: diff changeset	105	</html>
63ba7f0931e2 generic HTML_Panel -- specific Results_Dockable; wenzelm parents: diff changeset	106	"""
37015 39207774a9b7 read style sheets only once; wenzelm parents: 37014 diff changeset	107
37164 8b4617ad1593 reuse main view.font from jEdit; wenzelm parents: 37069 diff changeset	108	private def template(font_family: String, font_size: Int): String =
37015 39207774a9b7 read style sheets only once; wenzelm parents: 37014 diff changeset	109	template_head +
37164 8b4617ad1593 reuse main view.font from jEdit; wenzelm parents: 37069 diff changeset	110	"body { font-family: " + font_family + "; font-size: " + raw_px(font_size) + "px }" +
37015 39207774a9b7 read style sheets only once; wenzelm parents: 37014 diff changeset	111	template_tail
39207774a9b7 read style sheets only once; wenzelm parents: 37014 diff changeset	112
39207774a9b7 read style sheets only once; wenzelm parents: 37014 diff changeset	113
37034 9640f6546179 more systematic treatment of internal state, which belongs strictly to the main actor, not the Swing thread; wenzelm parents: 37016 diff changeset	114	/ main actor /
9640f6546179 more systematic treatment of internal state, which belongs strictly to the main actor, not the Swing thread; wenzelm parents: 37016 diff changeset	115
9640f6546179 more systematic treatment of internal state, which belongs strictly to the main actor, not the Swing thread; wenzelm parents: 37016 diff changeset	116	/* internal messages */
9640f6546179 more systematic treatment of internal state, which belongs strictly to the main actor, not the Swing thread; wenzelm parents: 37016 diff changeset	117
37164 8b4617ad1593 reuse main view.font from jEdit; wenzelm parents: 37069 diff changeset	118	private case class Resize(font_family: String, font_size: Int)
37034 9640f6546179 more systematic treatment of internal state, which belongs strictly to the main actor, not the Swing thread; wenzelm parents: 37016 diff changeset	119	private case class Render(body: List[XML.Tree])
9640f6546179 more systematic treatment of internal state, which belongs strictly to the main actor, not the Swing thread; wenzelm parents: 37016 diff changeset	120	private case object Refresh
34765 63ba7f0931e2 generic HTML_Panel -- specific Results_Dockable; wenzelm parents: diff changeset	121
37034 9640f6546179 more systematic treatment of internal state, which belongs strictly to the main actor, not the Swing thread; wenzelm parents: 37016 diff changeset	122	private val main_actor = actor {
9640f6546179 more systematic treatment of internal state, which belongs strictly to the main actor, not the Swing thread; wenzelm parents: 37016 diff changeset	123
9640f6546179 more systematic treatment of internal state, which belongs strictly to the main actor, not the Swing thread; wenzelm parents: 37016 diff changeset	124	/* internal state */
9640f6546179 more systematic treatment of internal state, which belongs strictly to the main actor, not the Swing thread; wenzelm parents: 37016 diff changeset	125
9640f6546179 more systematic treatment of internal state, which belongs strictly to the main actor, not the Swing thread; wenzelm parents: 37016 diff changeset	126	var current_font_metrics: FontMetrics = null
37164 8b4617ad1593 reuse main view.font from jEdit; wenzelm parents: 37069 diff changeset	127	var current_font_family = ""
37034 9640f6546179 more systematic treatment of internal state, which belongs strictly to the main actor, not the Swing thread; wenzelm parents: 37016 diff changeset	128	var current_font_size: Int = 0
9640f6546179 more systematic treatment of internal state, which belongs strictly to the main actor, not the Swing thread; wenzelm parents: 37016 diff changeset	129	var current_margin: Int = 0
9640f6546179 more systematic treatment of internal state, which belongs strictly to the main actor, not the Swing thread; wenzelm parents: 37016 diff changeset	130	var current_body: List[XML.Tree] = Nil
34765 63ba7f0931e2 generic HTML_Panel -- specific Results_Dockable; wenzelm parents: diff changeset	131
37164 8b4617ad1593 reuse main view.font from jEdit; wenzelm parents: 37069 diff changeset	132	def resize(font_family: String, font_size: Int)
36993 b7cce32953f0 more systematic treatment of physical document wrt. font size etc.; wenzelm parents: 36992 diff changeset	133	{
37164 8b4617ad1593 reuse main view.font from jEdit; wenzelm parents: 37069 diff changeset	134	val font = new Font(font_family, Font.PLAIN, lobo_px(raw_px(font_size)))
37034 9640f6546179 more systematic treatment of internal state, which belongs strictly to the main actor, not the Swing thread; wenzelm parents: 37016 diff changeset	135	val (font_metrics, margin) =
36993 b7cce32953f0 more systematic treatment of physical document wrt. font size etc.; wenzelm parents: 36992 diff changeset	136	Swing_Thread.now {
37164 8b4617ad1593 reuse main view.font from jEdit; wenzelm parents: 37069 diff changeset	137	val metrics = getFontMetrics(font)
37034 9640f6546179 more systematic treatment of internal state, which belongs strictly to the main actor, not the Swing thread; wenzelm parents: 37016 diff changeset	138	(metrics, (getWidth() / (metrics.charWidth(Symbol.spc) max 1) - 4) max 20)
36993 b7cce32953f0 more systematic treatment of physical document wrt. font size etc.; wenzelm parents: 36992 diff changeset	139	}
37034 9640f6546179 more systematic treatment of internal state, which belongs strictly to the main actor, not the Swing thread; wenzelm parents: 37016 diff changeset	140	if (current_font_metrics == null \|\|
37164 8b4617ad1593 reuse main view.font from jEdit; wenzelm parents: 37069 diff changeset	141	current_font_family != font_family \|\|
37034 9640f6546179 more systematic treatment of internal state, which belongs strictly to the main actor, not the Swing thread; wenzelm parents: 37016 diff changeset	142	current_font_size != font_size \|\|
9640f6546179 more systematic treatment of internal state, which belongs strictly to the main actor, not the Swing thread; wenzelm parents: 37016 diff changeset	143	current_margin != margin)
9640f6546179 more systematic treatment of internal state, which belongs strictly to the main actor, not the Swing thread; wenzelm parents: 37016 diff changeset	144	{
9640f6546179 more systematic treatment of internal state, which belongs strictly to the main actor, not the Swing thread; wenzelm parents: 37016 diff changeset	145	current_font_metrics = font_metrics
37164 8b4617ad1593 reuse main view.font from jEdit; wenzelm parents: 37069 diff changeset	146	current_font_family = font_family
37034 9640f6546179 more systematic treatment of internal state, which belongs strictly to the main actor, not the Swing thread; wenzelm parents: 37016 diff changeset	147	current_font_size = font_size
9640f6546179 more systematic treatment of internal state, which belongs strictly to the main actor, not the Swing thread; wenzelm parents: 37016 diff changeset	148	current_margin = margin
37014 1af0f718ffdc handle component resize for output / HTML panel; wenzelm parents: 36995 diff changeset	149	refresh()
36993 b7cce32953f0 more systematic treatment of physical document wrt. font size etc.; wenzelm parents: 36992 diff changeset	150	}
36814 dc85664dbf6d support Isabelle plugin properties with defaults; wenzelm parents: 36790 diff changeset	151	}
dc85664dbf6d support Isabelle plugin properties with defaults; wenzelm parents: 36790 diff changeset	152
37014 1af0f718ffdc handle component resize for output / HTML panel; wenzelm parents: 36995 diff changeset	153	def refresh() { render(current_body) }
1af0f718ffdc handle component resize for output / HTML panel; wenzelm parents: 36995 diff changeset	154
36993 b7cce32953f0 more systematic treatment of physical document wrt. font size etc.; wenzelm parents: 36992 diff changeset	155	def render(body: List[XML.Tree])
b7cce32953f0 more systematic treatment of physical document wrt. font size etc.; wenzelm parents: 36992 diff changeset	156	{
b7cce32953f0 more systematic treatment of physical document wrt. font size etc.; wenzelm parents: 36992 diff changeset	157	current_body = body
b7cce32953f0 more systematic treatment of physical document wrt. font size etc.; wenzelm parents: 36992 diff changeset	158	val html_body =
b7cce32953f0 more systematic treatment of physical document wrt. font size etc.; wenzelm parents: 36992 diff changeset	159	current_body.flatMap(div =>
37034 9640f6546179 more systematic treatment of internal state, which belongs strictly to the main actor, not the Swing thread; wenzelm parents: 37016 diff changeset	160	Pretty.formatted(List(div), current_margin, Pretty.font_metric(current_font_metrics))
37040 23b0b9986019 observe additional isabelle-jedit.css for component and user; wenzelm parents: 37036 diff changeset	161	.map(t => XML.Elem(HTML.PRE, List((Markup.CLASS, Markup.MESSAGE)), HTML.spans(t))))
37034 9640f6546179 more systematic treatment of internal state, which belongs strictly to the main actor, not the Swing thread; wenzelm parents: 37016 diff changeset	162	val doc =
9640f6546179 more systematic treatment of internal state, which belongs strictly to the main actor, not the Swing thread; wenzelm parents: 37016 diff changeset	163	builder.parse(
37164 8b4617ad1593 reuse main view.font from jEdit; wenzelm parents: 37069 diff changeset	164	new InputSourceImpl(
8b4617ad1593 reuse main view.font from jEdit; wenzelm parents: 37069 diff changeset	165	new StringReader(template(current_font_family, current_font_size)), "http://localhost"))
37034 9640f6546179 more systematic treatment of internal state, which belongs strictly to the main actor, not the Swing thread; wenzelm parents: 37016 diff changeset	166	doc.removeChild(doc.getLastChild())
9640f6546179 more systematic treatment of internal state, which belongs strictly to the main actor, not the Swing thread; wenzelm parents: 37016 diff changeset	167	doc.appendChild(XML.document_node(doc, XML.elem(HTML.BODY, html_body)))
9640f6546179 more systematic treatment of internal state, which belongs strictly to the main actor, not the Swing thread; wenzelm parents: 37016 diff changeset	168	Swing_Thread.later { setDocument(doc, rcontext) }
9640f6546179 more systematic treatment of internal state, which belongs strictly to the main actor, not the Swing thread; wenzelm parents: 37016 diff changeset	169	}
34775 49245d68f7e4 basic setup for HTML_Panel event handling; wenzelm parents: 34770 diff changeset	170
37034 9640f6546179 more systematic treatment of internal state, which belongs strictly to the main actor, not the Swing thread; wenzelm parents: 37016 diff changeset	171
9640f6546179 more systematic treatment of internal state, which belongs strictly to the main actor, not the Swing thread; wenzelm parents: 37016 diff changeset	172	/* main loop */
36993 b7cce32953f0 more systematic treatment of physical document wrt. font size etc.; wenzelm parents: 36992 diff changeset	173
37164 8b4617ad1593 reuse main view.font from jEdit; wenzelm parents: 37069 diff changeset	174	resize(initial_font_family, initial_font_size)
34775 49245d68f7e4 basic setup for HTML_Panel event handling; wenzelm parents: 34770 diff changeset	175
34765 63ba7f0931e2 generic HTML_Panel -- specific Results_Dockable; wenzelm parents: diff changeset	176	loop {
63ba7f0931e2 generic HTML_Panel -- specific Results_Dockable; wenzelm parents: diff changeset	177	react {
37164 8b4617ad1593 reuse main view.font from jEdit; wenzelm parents: 37069 diff changeset	178	case Resize(font_family, font_size) => resize(font_family, font_size)
37034 9640f6546179 more systematic treatment of internal state, which belongs strictly to the main actor, not the Swing thread; wenzelm parents: 37016 diff changeset	179	case Refresh => refresh()
9640f6546179 more systematic treatment of internal state, which belongs strictly to the main actor, not the Swing thread; wenzelm parents: 37016 diff changeset	180	case Render(body) => render(body)
34769 826525fc5285 more precise messages; wenzelm parents: 34766 diff changeset	181	case bad => System.err.println("main_actor: ignoring bad message " + bad)
34765 63ba7f0931e2 generic HTML_Panel -- specific Results_Dockable; wenzelm parents: diff changeset	182	}
63ba7f0931e2 generic HTML_Panel -- specific Results_Dockable; wenzelm parents: diff changeset	183	}
63ba7f0931e2 generic HTML_Panel -- specific Results_Dockable; wenzelm parents: diff changeset	184	}
63ba7f0931e2 generic HTML_Panel -- specific Results_Dockable; wenzelm parents: diff changeset	185
37034 9640f6546179 more systematic treatment of internal state, which belongs strictly to the main actor, not the Swing thread; wenzelm parents: 37016 diff changeset	186
9640f6546179 more systematic treatment of internal state, which belongs strictly to the main actor, not the Swing thread; wenzelm parents: 37016 diff changeset	187	/* external methods */
9640f6546179 more systematic treatment of internal state, which belongs strictly to the main actor, not the Swing thread; wenzelm parents: 37016 diff changeset	188
37164 8b4617ad1593 reuse main view.font from jEdit; wenzelm parents: 37069 diff changeset	189	def resize(font_family: String, font_size: Int) { main_actor ! Resize(font_family, font_size) }
37014 1af0f718ffdc handle component resize for output / HTML panel; wenzelm parents: 36995 diff changeset	190	def refresh() { main_actor ! Refresh }
36993 b7cce32953f0 more systematic treatment of physical document wrt. font size etc.; wenzelm parents: 36992 diff changeset	191	def render(body: List[XML.Tree]) { main_actor ! Render(body) }
34765 63ba7f0931e2 generic HTML_Panel -- specific Results_Dockable; wenzelm parents: diff changeset	192	}

author	wenzelm
	Fri, 28 May 2010 17:48:18 +0200
changeset 37164	8b4617ad1593
parent 37069	7d796b72099f
child 37202	382a56c9f295
permissions	-rw-r--r--