author | wenzelm |
Thu, 04 Mar 2021 21:04:27 +0100 | |
changeset 73367 | 77ef8bef0593 |
parent 73340 | 0ffcad1f6130 |
child 75393 | 87ebf5a50283 |
permissions | -rw-r--r-- |
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alternative output panel, based on Pretty_Text_Area, based on JEditEmbeddedTextArea;
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/* Title: Tools/jEdit/src/pretty_text_area.scala |
0fa4389c04f9
alternative output panel, based on Pretty_Text_Area, based on JEditEmbeddedTextArea;
wenzelm
parents:
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2 |
Author: Makarius |
0fa4389c04f9
alternative output panel, based on Pretty_Text_Area, based on JEditEmbeddedTextArea;
wenzelm
parents:
diff
changeset
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|
50160 | 4 |
GUI component for pretty-printed text with markup, rendered like jEdit |
5 |
text area. |
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alternative output panel, based on Pretty_Text_Area, based on JEditEmbeddedTextArea;
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parents:
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*/ |
0fa4389c04f9
alternative output panel, based on Pretty_Text_Area, based on JEditEmbeddedTextArea;
wenzelm
parents:
diff
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7 |
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0fa4389c04f9
alternative output panel, based on Pretty_Text_Area, based on JEditEmbeddedTextArea;
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package isabelle.jedit |
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alternative output panel, based on Pretty_Text_Area, based on JEditEmbeddedTextArea;
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0fa4389c04f9
alternative output panel, based on Pretty_Text_Area, based on JEditEmbeddedTextArea;
wenzelm
parents:
diff
changeset
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10 |
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0fa4389c04f9
alternative output panel, based on Pretty_Text_Area, based on JEditEmbeddedTextArea;
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parents:
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import isabelle._ |
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58766 | 13 |
import java.awt.{Color, Font, Toolkit, Window} |
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import java.awt.event.{InputEvent, KeyEvent} |
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bypass input method for better imitation of read-only mode (cf. f26a4d5e82b5): e.g. relevant for composition of ALT-u u on Mac OS X;
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import java.awt.im.InputMethodRequests |
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import javax.swing.JTextField |
56885
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clarified GUI events, e.g. relevant for insert via completion;
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import javax.swing.event.{DocumentListener, DocumentEvent} |
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56907
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enable "PIDE" docking framework by default, and rely on its "Detach" menu item;
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import scala.swing.{Label, Component} |
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import scala.util.matching.Regex |
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dummy input handler to imitate former read-only mode, which has changed its meaning in jedit-5.3.0 as mere hint for saving;
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import org.gjt.sp.jedit.{jEdit, View, Registers, JEditBeanShellAction} |
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import org.gjt.sp.jedit.input.{DefaultInputHandlerProvider, TextAreaInputHandler} |
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alternative output panel, based on Pretty_Text_Area, based on JEditEmbeddedTextArea;
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import org.gjt.sp.jedit.textarea.{AntiAlias, JEditEmbeddedTextArea} |
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import org.gjt.sp.jedit.syntax.SyntaxStyle |
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import org.gjt.sp.jedit.gui.KeyEventTranslator |
50640 | 27 |
import org.gjt.sp.util.{SyntaxUtilities, Log} |
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alternative output panel, based on Pretty_Text_Area, based on JEditEmbeddedTextArea;
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50538
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init gutter according to view properties, which improves symmetry of windows and allows use of folds etc;
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class Pretty_Text_Area( |
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view: View, |
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close_action: () => Unit = () => (), |
50743
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propagate keys to enclosing view like org.gjt.sp.jedit.gui.CompletionPopup, but without its KeyEventInterceptor;
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propagate_keys: Boolean = false) extends JEditEmbeddedTextArea |
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alternative output panel, based on Pretty_Text_Area, based on JEditEmbeddedTextArea;
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{ |
49446 | 35 |
text_area => |
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||
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GUI_Thread.require {} |
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55826 | 39 |
private var current_font_info: Font_Info = Font_Info.main() |
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alternative output panel, based on Pretty_Text_Area, based on JEditEmbeddedTextArea;
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private var current_body: XML.Body = Nil |
52972 | 41 |
private var current_base_snapshot = Document.Snapshot.init |
50507 | 42 |
private var current_base_results = Command.Results.empty |
64621 | 43 |
private var current_rendering: JEdit_Rendering = |
72718 | 44 |
JEdit_Rendering.text(current_base_snapshot, Nil)._2 |
61561 | 45 |
private var future_refresh: Option[Future[Unit]] = None |
49398
0fa4389c04f9
alternative output panel, based on Pretty_Text_Area, based on JEditEmbeddedTextArea;
wenzelm
parents:
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50306 | 47 |
private val rich_text_area = |
50915
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wenzelm
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new Rich_Text_Area(view, text_area, () => current_rendering, close_action, |
63028 | 49 |
get_search_pattern _, () => (), caret_visible = false, enable_hovering = true) |
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common support for search field, which is actually a light-weight Highlighter;
wenzelm
parents:
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parents:
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private var current_search_pattern: Option[Regex] = None |
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def get_search_pattern(): Option[Regex] = GUI_Thread.require { current_search_pattern } |
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some actual rich text markup via XML.content_markup;
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recovered special background handling from 8d6e478934dc, particularly relevant for gutter border;
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def get_background(): Option[Color] = None |
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def refresh(): Unit = |
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parents:
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{ |
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GUI_Thread.require {} |
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alternative output panel, based on Pretty_Text_Area, based on JEditEmbeddedTextArea;
wenzelm
parents:
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55825 | 60 |
val font = current_font_info.font |
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getPainter.setFont(font) |
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getPainter.setAntiAlias(new AntiAlias(jEdit.getProperty("view.antiAlias"))) |
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no censorship of "view.fracFontMetrics", although it often degrades rendering quality;
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getPainter.setFractionalFontMetricsEnabled(jEdit.getBooleanProperty("view.fracFontMetrics")) |
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getPainter.setStyles( |
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SyntaxUtilities.loadStyles(current_font_info.family, current_font_info.size.round)) |
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56789 | 66 |
getPainter.setLineExtraSpacing(jEdit.getIntegerProperty("options.textarea.lineSpacing", 0)) |
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val fold_line_style = new Array[SyntaxStyle](4) |
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for (i <- 0 to 3) { |
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fold_line_style(i) = |
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SyntaxUtilities.parseStyle( |
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jEdit.getProperty("view.style.foldLine." + i), |
55825 | 73 |
current_font_info.family, current_font_info.size.round, true) |
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} |
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fold handling within Pretty_Text_Area, based on formal document content, which is static here;
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getPainter.setFoldLineStyle(fold_line_style) |
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76 |
|
51439
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getGutter.setForeground(jEdit.getColorProperty("view.gutter.fgColor")) |
b10b64679c5b
more precise tooltip window size (NB: dimensions are known after layout pack, before making content visible);
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getGutter.setBackground(jEdit.getColorProperty("view.gutter.bgColor")) |
72720 | 79 |
get_background().foreach(bg => { getPainter.setBackground(bg); getGutter.setBackground(bg) }) |
51439
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getGutter.setHighlightedForeground(jEdit.getColorProperty("view.gutter.highlightColor")) |
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81 |
getGutter.setFoldColor(jEdit.getColorProperty("view.gutter.foldColor")) |
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82 |
getGutter.setFont(jEdit.getFontProperty("view.gutter.font")) |
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parents:
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83 |
getGutter.setBorder(0, |
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84 |
jEdit.getColorProperty("view.gutter.focusBorderColor"), |
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jEdit.getColorProperty("view.gutter.noFocusBorderColor"), |
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getPainter.getBackground) |
60250
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proper fold painter according to jEdit options, not the hardwired default of JEditEmbeddedTextArea;
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87 |
getGutter.setFoldPainter(view.getTextArea.getFoldPainter) |
51439
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getGutter.setGutterEnabled(jEdit.getBooleanProperty("view.gutter.enabled")) |
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89 |
|
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take component width as indication if it is already visible/layed-out, to avoid multiple formatting with minimal margin;
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if (getWidth > 0) { |
51492
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more explicit Pretty.Metric, with clear distinction of unit (space width) vs. average char width (for visual adjustments) -- NB: Pretty formatting works via full space characters (despite a981a5c8a505 and 70f7483df9cb);
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val metric = JEdit_Lib.pretty_metric(getPainter) |
73122
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clarified pretty margin: attempt to avoid scrollbar;
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val margin = ((getPainter.getWidth.toDouble / metric.unit) max 20.0).floor |
49471
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text_rendering as managed task, with cancellation;
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93 |
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72718 | 94 |
val snapshot = current_base_snapshot |
95 |
val results = current_base_results |
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67547
aefe7a7b330a
clarified breakgain: keeping it constant avoids margin fluctuation in Pretty_Tooltip vs. Pretty_Text_Area;
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96 |
val formatted_body = Pretty.formatted(current_body, margin = margin, metric = metric) |
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alternative output panel, based on Pretty_Text_Area, based on JEditEmbeddedTextArea;
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73367 | 98 |
future_refresh.foreach(_.cancel()) |
61193 | 99 |
future_refresh = |
61561 | 100 |
Some(Future.fork { |
51498
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101 |
val (text, rendering) = |
72718 | 102 |
try { JEdit_Rendering.text(snapshot, formatted_body, results = results) } |
51498
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reverted most of 5944b20c41bf -- tends to cause race condition of synchronous vs. asynchronous version;
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103 |
catch { case exn: Throwable => Log.log(Log.ERROR, this, exn); throw exn } |
56860 | 104 |
Exn.Interrupt.expose() |
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|
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106 |
GUI_Thread.later { |
51498
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wenzelm
parents:
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107 |
current_rendering = rendering |
979592b765f8
reverted most of 5944b20c41bf -- tends to cause race condition of synchronous vs. asynchronous version;
wenzelm
parents:
51497
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108 |
JEdit_Lib.buffer_edit(getBuffer) { |
979592b765f8
reverted most of 5944b20c41bf -- tends to cause race condition of synchronous vs. asynchronous version;
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109 |
rich_text_area.active_reset() |
979592b765f8
reverted most of 5944b20c41bf -- tends to cause race condition of synchronous vs. asynchronous version;
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110 |
getBuffer.setFoldHandler(new Fold_Handling.Document_Fold_Handler(rendering)) |
68060
3931ed905e93
avoid output showing up in kill ring (via TextArea.setText, JEditBuffer.remove, UndoManager.contentRemoved), e.g. relevant for action "paste-deleted";
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111 |
JEdit_Lib.buffer_undo_in_progress(getBuffer, setText(text)) |
51498
979592b765f8
reverted most of 5944b20c41bf -- tends to cause race condition of synchronous vs. asynchronous version;
wenzelm
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112 |
setCaretPosition(0) |
979592b765f8
reverted most of 5944b20c41bf -- tends to cause race condition of synchronous vs. asynchronous version;
wenzelm
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113 |
} |
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reverted most of 5944b20c41bf -- tends to cause race condition of synchronous vs. asynchronous version;
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114 |
} |
56730
e723f041b6d0
tuned signature -- separate pool for JFuture tasks, which can be canceled;
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115 |
}) |
50166
2585c81d840a
take component width as indication if it is already visible/layed-out, to avoid multiple formatting with minimal margin;
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50160
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116 |
} |
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117 |
} |
0fa4389c04f9
alternative output panel, based on Pretty_Text_Area, based on JEditEmbeddedTextArea;
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118 |
|
73340 | 119 |
def resize(font_info: Font_Info): Unit = |
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120 |
{ |
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clarified module name: facilitate alternative GUI frameworks;
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121 |
GUI_Thread.require {} |
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alternative output panel, based on Pretty_Text_Area, based on JEditEmbeddedTextArea;
wenzelm
parents:
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122 |
|
55825 | 123 |
current_font_info = font_info |
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124 |
refresh() |
0fa4389c04f9
alternative output panel, based on Pretty_Text_Area, based on JEditEmbeddedTextArea;
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parents:
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125 |
} |
0fa4389c04f9
alternative output panel, based on Pretty_Text_Area, based on JEditEmbeddedTextArea;
wenzelm
parents:
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126 |
|
73340 | 127 |
def update( |
128 |
base_snapshot: Document.Snapshot, base_results: Command.Results, body: XML.Body): Unit = |
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alternative output panel, based on Pretty_Text_Area, based on JEditEmbeddedTextArea;
wenzelm
parents:
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129 |
{ |
57612
990ffb84489b
clarified module name: facilitate alternative GUI frameworks;
wenzelm
parents:
57042
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130 |
GUI_Thread.require {} |
73120
c3589f2dff31
more informative errors: simplify diagnosis of spurious failures reported by users;
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131 |
require(!base_snapshot.is_outdated, "document snapshot outdated") |
49398
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alternative output panel, based on Pretty_Text_Area, based on JEditEmbeddedTextArea;
wenzelm
parents:
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132 |
|
49419
e2726211f834
pass base_snapshot to enable hyperlinks into other nodes;
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diff
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133 |
current_base_snapshot = base_snapshot |
50501
6f41f1646617
more careful handling of Dialog_Result, with active area and color feedback;
wenzelm
parents:
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current_base_results = base_results |
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current_body = body |
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refresh() |
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} |
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|
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def detach: Unit = |
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{ |
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GUI_Thread.require {} |
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Info_Dockable(view, current_base_snapshot, current_base_results, current_body) |
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} |
|
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||
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def detach_operation: Option[() => Unit] = |
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if (current_body.isEmpty) None else Some(() => detach) |
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|
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/* common GUI components */ |
150 |
||
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val search_label: Component = new Label("Search:") { |
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tooltip = "Search and highlight output via regular expression" |
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} |
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|
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val search_field: Component = |
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Component.wrap(new Completion_Popup.History_Text_Field("isabelle-search") |
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{ |
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private val input_delay = |
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Delay.last(PIDE.options.seconds("editor_input_delay"), gui = true) { |
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search_action(this) |
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} |
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getDocument.addDocumentListener(new DocumentListener { |
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def changedUpdate(e: DocumentEvent): Unit = input_delay.invoke() |
164 |
def insertUpdate(e: DocumentEvent): Unit = input_delay.invoke() |
|
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def removeUpdate(e: DocumentEvent): Unit = input_delay.invoke() |
|
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}) |
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setColumns(20) |
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setToolTipText(search_label.tooltip) |
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setFont(GUI.imitate_font(getFont, scale = 1.2)) |
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}) |
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|
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private val search_field_foreground = search_field.foreground |
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|
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private def search_action(text_field: JTextField): Unit = |
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{ |
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val (pattern, ok) = |
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text_field.getText match { |
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case null | "" => (None, true) |
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case s => |
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val re = Library.make_regex(s) |
181 |
(re, re.isDefined) |
|
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} |
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if (current_search_pattern != pattern) { |
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current_search_pattern = pattern |
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text_area.getPainter.repaint() |
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186 |
} |
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text_field.setForeground( |
65911 | 188 |
if (ok) search_field_foreground |
189 |
else current_rendering.color(Rendering.Color.error)) |
|
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190 |
} |
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191 |
|
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|
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/* key handling */ |
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194 |
|
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195 |
override def getInputMethodRequests: InputMethodRequests = null |
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196 |
|
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inputHandlerProvider = |
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198 |
new DefaultInputHandlerProvider(new TextAreaInputHandler(text_area) { |
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override def getAction(action: String): JEditBeanShellAction = |
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text_area.getActionContext.getAction(action) |
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override def processKeyEvent(evt: KeyEvent, from: Int, global: Boolean): Unit = {} |
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override def handleKey(key: KeyEventTranslator.Key, dry_run: Boolean): Boolean = false |
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203 |
}) |
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204 |
|
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addKeyListener(JEdit_Lib.key_listener( |
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key_pressed = (evt: KeyEvent) => |
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{ |
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208 |
val strict_control = |
72899 | 209 |
JEdit_Lib.command_modifier(evt) && !JEdit_Lib.shift_modifier(evt) |
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210 |
|
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211 |
evt.getKeyCode match { |
58835 | 212 |
case KeyEvent.VK_C | KeyEvent.VK_INSERT |
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if strict_control && text_area.getSelectionCount != 0 => |
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214 |
Registers.copy(text_area, '$') |
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215 |
evt.consume |
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216 |
|
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217 |
case KeyEvent.VK_A |
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if strict_control => |
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text_area.selectAll |
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evt.consume |
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221 |
|
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case KeyEvent.VK_ESCAPE => |
65240 | 223 |
if (Isabelle.dismissed_popups(view)) evt.consume |
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224 |
|
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225 |
case _ => |
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226 |
} |
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227 |
if (propagate_keys) JEdit_Lib.propagate_key(view, evt) |
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228 |
}, |
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key_typed = (evt: KeyEvent) => |
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230 |
{ |
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231 |
if (propagate_keys) JEdit_Lib.propagate_key(view, evt) |
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232 |
} |
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233 |
) |
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234 |
) |
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235 |
|
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236 |
|
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237 |
/* init */ |
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238 |
|
49472 | 239 |
getPainter.setStructureHighlightEnabled(false) |
49475 | 240 |
getPainter.setLineHighlightEnabled(false) |
241 |
||
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242 |
getBuffer.setTokenMarker(Isabelle.mode_token_marker("isabelle-output").get) |
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243 |
getBuffer.setStringProperty("noWordSep", "_'?⇩") |
49475 | 244 |
|
49412 | 245 |
rich_text_area.activate() |
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} |