diff --git a/src/Tools/jEdit/src/syntax_style.scala b/src/Tools/jEdit/src/syntax_style.scala --- a/src/Tools/jEdit/src/syntax_style.scala +++ b/src/Tools/jEdit/src/syntax_style.scala @@ -1,209 +1,209 @@ /* Title: Tools/jEdit/src/syntax_style.scala Author: Makarius Support for extended syntax styles: subscript, superscript, bold, user fonts. */ package isabelle.jedit import isabelle._ import java.util.{Map => JMap} import java.awt.{Font, Color} import java.awt.font.TextAttribute import java.awt.geom.AffineTransform import org.gjt.sp.util.SyntaxUtilities import org.gjt.sp.jedit.jEdit import org.gjt.sp.jedit.syntax.{Token => JEditToken, SyntaxStyle} import org.gjt.sp.jedit.textarea.TextArea object Syntax_Style { /* extended syntax styles */ private val plain_range: Int = JEditToken.ID_COUNT - private val full_range = 6 * plain_range + 1 + private val full_range: Int = 6 * plain_range private def check_range(i: Int): Unit = require(0 <= i && i < plain_range, "bad syntax style range") def subscript(i: Byte): Byte = { check_range(i); (i + plain_range).toByte } def superscript(i: Byte): Byte = { check_range(i); (i + 2 * plain_range).toByte } def bold(i: Byte): Byte = { check_range(i); (i + 3 * plain_range).toByte } def user_font(idx: Int, i: Byte): Byte = { check_range(i); (i + (4 + idx) * plain_range).toByte } - val hidden: Byte = (6 * plain_range).toByte + val hidden: Byte = full_range.toByte val control: Byte = (hidden + JEditToken.DIGIT).toByte private def font_style(style: SyntaxStyle, f: Font => Font): SyntaxStyle = new SyntaxStyle(style.getForegroundColor, style.getBackgroundColor, f(style.getFont)) private def script_style(style: SyntaxStyle, i: Int): SyntaxStyle = { font_style(style, font0 => { val font1 = font0.deriveFont(JMap.of(TextAttribute.SUPERSCRIPT, java.lang.Integer.valueOf(i))) def shift(y: Float): Font = GUI.transform_font(font1, AffineTransform.getTranslateInstance(0.0, y.toDouble)) val m0 = GUI.line_metrics(font0) val m1 = GUI.line_metrics(font1) val a = m1.getAscent - m0.getAscent val b = (m1.getDescent + m1.getLeading) - (m0.getDescent + m0.getLeading) if (a > 0.0f) shift(a) else if (b > 0.0f) shift(- b) else font1 }) } private def bold_style(style: SyntaxStyle): SyntaxStyle = font_style(style, font => font.deriveFont(if (font.isBold) Font.PLAIN else Font.BOLD)) val hidden_color: Color = new Color(255, 255, 255, 0) def set_extender(extender: SyntaxUtilities.StyleExtender): Unit = { SyntaxUtilities.setStyleExtender(extender) GUI_Thread.later { jEdit.propertiesChanged } } object Base_Extender extends SyntaxUtilities.StyleExtender { override def extendStyles(styles: Array[SyntaxStyle]): Array[SyntaxStyle] = { - val new_styles = new Array[SyntaxStyle](full_range) + val new_styles = Array.fill[SyntaxStyle](java.lang.Byte.MAX_VALUE)(styles(0)) for (i <- 0 until full_range) { new_styles(i) = styles(i % plain_range) } new_styles } } object Extender extends SyntaxUtilities.StyleExtender { val max_user_fonts = 2 if (Symbol.font_names.length > max_user_fonts) error("Too many user symbol fonts (" + max_user_fonts + " permitted): " + Symbol.font_names.mkString(", ")) override def extendStyles(styles: Array[SyntaxStyle]): Array[SyntaxStyle] = { val style0 = styles(0) val font0 = style0.getFont val new_styles = Array.fill[SyntaxStyle](java.lang.Byte.MAX_VALUE)(styles(0)) for (i <- 0 until plain_range) { val style = styles(i) new_styles(i) = style new_styles(subscript(i.toByte)) = script_style(style, -1) new_styles(superscript(i.toByte)) = script_style(style, 1) new_styles(bold(i.toByte)) = bold_style(style) for (idx <- 0 until max_user_fonts) new_styles(user_font(idx, i.toByte)) = style for ((family, idx) <- Symbol.font_index) new_styles(user_font(idx, i.toByte)) = font_style(style, GUI.imitate_font(_, family)) } new_styles(hidden) = new SyntaxStyle(hidden_color, null, GUI.transform_font(new Font(font0.getFamily, 0, 1), AffineTransform.getScaleInstance(2.0, font0.getSize.toDouble))) new_styles(control) = new SyntaxStyle(style0.getForegroundColor, style0.getBackgroundColor, { val font_style = (if (font0.isItalic) 0 else Font.ITALIC) | (if (font0.isBold) 0 else Font.BOLD) new Font(font0.getFamily, font_style, font0.getSize) }) new_styles } } private def control_style(sym: String): Option[Byte => Byte] = if (sym == Symbol.sub_decoded) Some(subscript) else if (sym == Symbol.sup_decoded) Some(superscript) else if (sym == Symbol.bold_decoded) Some(bold) else None def extended(text: CharSequence): Map[Text.Offset, Byte => Byte] = { var result = Map[Text.Offset, Byte => Byte]() def mark(start: Text.Offset, stop: Text.Offset, style: Byte => Byte): Unit = { for (i <- start until stop) result += (i -> style) } var offset = 0 var control_sym = "" for (sym <- Symbol.iterator(text)) { val end_offset = offset + sym.length if (control_style(sym).isDefined) control_sym = sym else if (control_sym != "") { if (Symbol.is_controllable(sym) && !Symbol.fonts.isDefinedAt(sym)) { mark(offset - control_sym.length, offset, _ => hidden) mark(offset, end_offset, control_style(control_sym).get) } control_sym = "" } if (Symbol.is_control_encoded(sym)) { val a = offset + Symbol.control_prefix.length val b = end_offset - Symbol.control_suffix.length mark(offset, a, _ => hidden) mark(a, b, _ => control) mark(b, end_offset, _ => hidden) } Symbol.lookup_font(sym) match { case Some(idx) => mark(offset, end_offset, user_font(idx, _)) case _ => } offset = end_offset } result } /* editing support for control symbols */ def edit_control_style(text_area: TextArea, control_sym: String): Unit = { GUI_Thread.assert {} val buffer = text_area.getBuffer val control_decoded = Isabelle_Encoding.perhaps_decode(buffer, control_sym) def update_style(text: String): String = { val result = new StringBuilder for (sym <- Symbol.iterator(text) if !HTML.is_control(sym)) { if (Symbol.is_controllable(sym)) result ++= control_decoded result ++= sym } result.toString } text_area.getSelection.foreach(sel => { val before = JEdit_Lib.point_range(buffer, sel.getStart - 1) JEdit_Lib.get_text(buffer, before) match { case Some(s) if HTML.is_control(s) => text_area.extendSelection(before.start, before.stop) case _ => } }) text_area.getSelection.toList match { case Nil => text_area.setSelectedText(control_decoded) case sels => JEdit_Lib.buffer_edit(buffer) { sels.foreach(sel => text_area.setSelectedText(sel, update_style(text_area.getSelectedText(sel)))) } } } }