author | wenzelm |
Sun, 12 Jun 2011 20:08:49 +0200 | |
changeset 43369 | 4c86b3405010 |
child 43370 | 1d6ce56e9b2f |
permissions | -rw-r--r-- |
43369
4c86b3405010
separate isabelle.jedit.Text_Painter, which actually replaces the original TextAreaPainter$PaintText instance;
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parents:
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/* Title: Tools/jEdit/src/text_painter.scala |
4c86b3405010
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Author: Makarius |
4c86b3405010
separate isabelle.jedit.Text_Painter, which actually replaces the original TextAreaPainter$PaintText instance;
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separate isabelle.jedit.Text_Painter, which actually replaces the original TextAreaPainter$PaintText instance;
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Replacement painter for jEdit text area. |
4c86b3405010
separate isabelle.jedit.Text_Painter, which actually replaces the original TextAreaPainter$PaintText instance;
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*/ |
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separate isabelle.jedit.Text_Painter, which actually replaces the original TextAreaPainter$PaintText instance;
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separate isabelle.jedit.Text_Painter, which actually replaces the original TextAreaPainter$PaintText instance;
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package isabelle.jedit |
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separate isabelle.jedit.Text_Painter, which actually replaces the original TextAreaPainter$PaintText instance;
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4c86b3405010
separate isabelle.jedit.Text_Painter, which actually replaces the original TextAreaPainter$PaintText instance;
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import isabelle._ |
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import java.awt.{Graphics, Graphics2D} |
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import java.util.ArrayList |
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separate isabelle.jedit.Text_Painter, which actually replaces the original TextAreaPainter$PaintText instance;
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import org.gjt.sp.jedit.Debug |
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import org.gjt.sp.jedit.syntax.{DisplayTokenHandler, Chunk} |
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import org.gjt.sp.jedit.textarea.{JEditTextArea, TextAreaExtension, TextAreaPainter} |
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separate isabelle.jedit.Text_Painter, which actually replaces the original TextAreaPainter$PaintText instance;
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separate isabelle.jedit.Text_Painter, which actually replaces the original TextAreaPainter$PaintText instance;
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class Text_Painter(model: Document_Model, text_area: JEditTextArea) extends TextAreaExtension |
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{ |
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private val orig_text_painter: TextAreaExtension = |
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separate isabelle.jedit.Text_Painter, which actually replaces the original TextAreaPainter$PaintText instance;
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{ |
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val name = "org.gjt.sp.jedit.textarea.TextAreaPainter$PaintText" |
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text_area.getPainter.getExtensions.iterator.filter(x => x.getClass.getName == name).toList |
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separate isabelle.jedit.Text_Painter, which actually replaces the original TextAreaPainter$PaintText instance;
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match { |
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separate isabelle.jedit.Text_Painter, which actually replaces the original TextAreaPainter$PaintText instance;
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case List(x) => x |
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case _ => error("Expected exactly one " + name) |
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} |
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} |
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separate isabelle.jedit.Text_Painter, which actually replaces the original TextAreaPainter$PaintText instance;
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separate isabelle.jedit.Text_Painter, which actually replaces the original TextAreaPainter$PaintText instance;
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separate isabelle.jedit.Text_Painter, which actually replaces the original TextAreaPainter$PaintText instance;
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/* wrap_margin -- cf. org.gjt.sp.jedit.textarea.TextArea.propertiesChanged */ |
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separate isabelle.jedit.Text_Painter, which actually replaces the original TextAreaPainter$PaintText instance;
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private def wrap_margin(): Int = |
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separate isabelle.jedit.Text_Painter, which actually replaces the original TextAreaPainter$PaintText instance;
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{ |
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val buffer = text_area.getBuffer |
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separate isabelle.jedit.Text_Painter, which actually replaces the original TextAreaPainter$PaintText instance;
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val painter = text_area.getPainter |
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separate isabelle.jedit.Text_Painter, which actually replaces the original TextAreaPainter$PaintText instance;
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val font = painter.getFont |
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separate isabelle.jedit.Text_Painter, which actually replaces the original TextAreaPainter$PaintText instance;
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val font_context = painter.getFontRenderContext |
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separate isabelle.jedit.Text_Painter, which actually replaces the original TextAreaPainter$PaintText instance;
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separate isabelle.jedit.Text_Painter, which actually replaces the original TextAreaPainter$PaintText instance;
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val soft_wrap = buffer.getStringProperty("wrap") == "soft" |
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separate isabelle.jedit.Text_Painter, which actually replaces the original TextAreaPainter$PaintText instance;
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val max = buffer.getIntegerProperty("maxLineLen", 0) |
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separate isabelle.jedit.Text_Painter, which actually replaces the original TextAreaPainter$PaintText instance;
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if (max > 0) font.getStringBounds(" " * max, font_context).getWidth.toInt |
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separate isabelle.jedit.Text_Painter, which actually replaces the original TextAreaPainter$PaintText instance;
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else if (soft_wrap) |
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painter.getWidth - (font.getStringBounds(" ", font_context).getWidth.round.toInt) * 3 |
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else 0 |
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} |
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separate isabelle.jedit.Text_Painter, which actually replaces the original TextAreaPainter$PaintText instance;
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separate isabelle.jedit.Text_Painter, which actually replaces the original TextAreaPainter$PaintText instance;
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separate isabelle.jedit.Text_Painter, which actually replaces the original TextAreaPainter$PaintText instance;
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/* chunks */ |
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separate isabelle.jedit.Text_Painter, which actually replaces the original TextAreaPainter$PaintText instance;
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private def line_chunks(physical_lines: Set[Int]): Map[Text.Offset, Chunk] = |
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{ |
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import scala.collection.JavaConversions._ |
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separate isabelle.jedit.Text_Painter, which actually replaces the original TextAreaPainter$PaintText instance;
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val buffer = text_area.getBuffer |
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val painter = text_area.getPainter |
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val margin = wrap_margin().toFloat |
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val out = new ArrayList[Chunk] |
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val handler = new DisplayTokenHandler |
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var result = Map[Text.Offset, Chunk]() |
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for (line <- physical_lines) { |
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out.clear |
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handler.init(painter.getStyles, painter.getFontRenderContext, painter, out, margin) |
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buffer.markTokens(line, handler) |
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val line_start = buffer.getLineStartOffset(line) |
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for (chunk <- handler.getChunkList.iterator) |
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result += (line_start + chunk.offset -> chunk) |
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} |
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result |
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} |
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var use = false |
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override def paintScreenLineRange(gfx: Graphics2D, |
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first_line: Int, last_line: Int, physical_lines: Array[Int], |
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start: Array[Int], end: Array[Int], y: Int, line_height: Int) |
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{ |
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if (use) { |
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Isabelle.swing_buffer_lock(model.buffer) { |
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val painter = text_area.getPainter |
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val fm = painter.getFontMetrics |
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val all_chunks = line_chunks(Set[Int]() ++ physical_lines.iterator.filter(i => i != -1)) |
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val x0 = text_area.getHorizontalOffset |
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var y0 = y + fm.getHeight - (fm.getLeading + 1) - fm.getDescent |
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for (i <- 0 until physical_lines.length) { |
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if (physical_lines(i) != -1) { |
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all_chunks.get(start(i)) match { |
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case Some(chunk) => |
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Chunk.paintChunkList(chunk, gfx, x0, y0, !Debug.DISABLE_GLYPH_VECTOR) |
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case None => |
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} |
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} |
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y0 += line_height |
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} |
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} |
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} |
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else |
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orig_text_painter.paintScreenLineRange( |
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gfx, first_line, last_line, physical_lines, start, end, y, line_height) |
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} |
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separate isabelle.jedit.Text_Painter, which actually replaces the original TextAreaPainter$PaintText instance;
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112 |
/* activation */ |
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113 |
|
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114 |
def activate() |
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115 |
{ |
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separate isabelle.jedit.Text_Painter, which actually replaces the original TextAreaPainter$PaintText instance;
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116 |
val painter = text_area.getPainter |
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separate isabelle.jedit.Text_Painter, which actually replaces the original TextAreaPainter$PaintText instance;
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117 |
painter.removeExtension(orig_text_painter) |
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separate isabelle.jedit.Text_Painter, which actually replaces the original TextAreaPainter$PaintText instance;
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118 |
painter.addExtension(TextAreaPainter.TEXT_LAYER, this) |
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119 |
} |
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separate isabelle.jedit.Text_Painter, which actually replaces the original TextAreaPainter$PaintText instance;
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parents:
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120 |
|
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separate isabelle.jedit.Text_Painter, which actually replaces the original TextAreaPainter$PaintText instance;
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121 |
def deactivate() |
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122 |
{ |
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123 |
val painter = text_area.getPainter |
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separate isabelle.jedit.Text_Painter, which actually replaces the original TextAreaPainter$PaintText instance;
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parents:
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124 |
painter.removeExtension(this) |
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separate isabelle.jedit.Text_Painter, which actually replaces the original TextAreaPainter$PaintText instance;
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parents:
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125 |
painter.addExtension(TextAreaPainter.TEXT_LAYER, orig_text_painter) |
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126 |
} |
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127 |
} |
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128 |