javax.swing.text.Style#addAttribute ( )源码实例Demo

private Style[] createHeaderStyles(Font font) {
    String  family = font.getFamily();
    int     size   = font.getSize();
    int[]   sizes  = {size * 2, size * 3 / 2, size * 5 / 4, size, size * 7 / 8};
    int     count  = sizes.length;
    Style[] styles = new Style[count];
    for (int i = 0; i < count; i++) {
        Style h = addStyle("h" + (i + 1), null);
        h.addAttribute(StyleConstants.FontFamily, family);
        h.addAttribute(StyleConstants.FontSize, Integer.valueOf(sizes[i]));
        h.addAttribute(StyleConstants.Bold, Boolean.TRUE);
        h.addAttribute(StyleConstants.SpaceBelow, Float.valueOf(sizes[i] / 2.0f));
        styles[i] = h;
    }
    return styles;
}
 

protected Collection<MessageFragmentStyle> colorizeStackTraceRegex(final Style style, String text, Pattern regex, int group) {
  ArrayList<MessageFragmentStyle> list = new ArrayList<>();
  Matcher matcher = regex.matcher(text);
  Style styleToUse = style;
  while (matcher.find()) {
    LocationInfo locationInfo = LocationInfo.parse(matcher.group(0));
    if (locationInfo != null) {
      String name = styleToUse.getName();
      Style newStyle = styleContext.addStyle(name + "-" + locationInfo.toString(), styleToUse);
      newStyle.addAttribute(STYLE_ATTRIBUTE_LOCATION_INFO, locationInfo);
      StyleConstants.setForeground(newStyle, StyleConstants.getForeground(styleToUse));
      StyleConstants.setBold(newStyle, StyleConstants.isBold(styleToUse));
      StyleConstants.setItalic(newStyle, StyleConstants.isItalic(styleToUse));
      styleToUse = newStyle;
    }
    int start = matcher.start(group);
    int end = matcher.end(group);
    if (end - start > 0) {
      MessageFragmentStyle messageFragmentStyle = new MessageFragmentStyle(start, end - start, styleToUse, false);
      list.add(messageFragmentStyle);
    }
  }
  return list;
}
 

private static void underlineStacktraces(StyledDocument doc, JTextPane textPane, List<StackTracePosition> stacktraces, String comment) {
    Style defStyle = StyleContext.getDefaultStyleContext().getStyle(StyleContext.DEFAULT_STYLE);
    Style hlStyle = doc.addStyle("regularBlue-stacktrace", defStyle); // NOI18N
    hlStyle.addAttribute(HyperlinkSupport.STACKTRACE_ATTRIBUTE, new StackTraceAction());
    StyleConstants.setForeground(hlStyle, UIUtils.getLinkColor());
    StyleConstants.setUnderline(hlStyle, true);

    int last = 0;
    textPane.setText(""); // NOI18N
    for (StackTraceSupport.StackTracePosition stp : stacktraces) {
        int start = stp.getStartOffset();
        int end = stp.getEndOffset();

        if (last < start) {
            insertString(doc, comment, last, start, defStyle);
        }
        last = start;

        // for each line skip leading whitespaces (look bad underlined)
        boolean inStackTrace = (comment.charAt(start) > ' ');
        for (int i = start; i < end; i++) {
            char ch = comment.charAt(i);
            if ((inStackTrace && ch == '\n') || (!inStackTrace && ch > ' ')) {
                insertString(doc, comment, last, i, inStackTrace ? hlStyle : defStyle);
                inStackTrace = !inStackTrace;
                last = i;
            }
        }

        if (last < end) {
            insertString(doc, comment, last, end, inStackTrace ? hlStyle : defStyle);
        }
        last = end;
    }
    try {
        doc.insertString(doc.getLength(), comment.substring(last), defStyle);
    } catch (BadLocationException ex) {
        Support.LOG.log(Level.SEVERE, null, ex);
    }
}
 

private Style createBulletStyle(Font font) {
    Style style = addStyle("bullet", null);
    style.addAttribute(StyleConstants.FontFamily, font.getFamily());
    style.addAttribute(StyleConstants.FontSize, Integer.valueOf(font.getSize()));
    int indent = TextDrawing.getSimpleWidth(font, "• ");
    style.addAttribute(StyleConstants.FirstLineIndent, Float.valueOf(-indent));
    style.addAttribute(StyleConstants.LeftIndent, Float.valueOf(indent));
    return style;
}
 

protected Collection<MessageFragmentStyle> findExceptionNameAndMessage(final Style style, String subTextFragment) {
  final ArrayList<MessageFragmentStyle> result = new ArrayList<>();
  Matcher matcherMessage = exceptionNameAndMessage.matcher(subTextFragment);
  while (matcherMessage.find()) {
    final int beginIndex = matcherMessage.start(1);
    final int endIndex = matcherMessage.end(1);
    final String msg = subTextFragment.substring(beginIndex, endIndex).replaceFirst("Caused by: ", "");
    final Style style1 = styleContext.addStyle("exceptionMessage-" + msg, style);
    style1.addAttribute(STYLE_ATTRIBUTE_EXCEPTION_MSG, msg);
    result.add(new MessageFragmentStyle(beginIndex, endIndex - beginIndex, style1, false));
    System.out.println("Setting style with exceptionMessage " + style1);
  }
  return result;
}
 

Color apply(Object key, JButton button) {
    Style style = mainView.getStyledConsoleLogger().getStyle(level);
    Color tmp = (Color) style.getAttribute(key);

    Color color = JColorChooser.showDialog(mainView, Language.I18N.getString("pref.general.logging.title.select"), tmp);
    if (color != null) {
        style.addAttribute(key, color);
        button.setBackground(color);
        updatePreview();

        return color;
    } else
        return tmp;
}
 

void select(Color color, Color defaultColor, Object key, JCheckBox checkBox, JButton button) {
    Style style = mainView.getStyledConsoleLogger().getStyle(level);
    button.setEnabled(checkBox.isSelected());

    if (checkBox.isSelected()) {
        style.addAttribute(key, color != null ? color : defaultColor);
        button.setBackground(color != null ? color : defaultColor);
    } else {
        style.removeAttribute(key);
        button.setBackground(null);
    }

    updatePreview();
}
 

private void showDescription() {
    StyledDocument doc = descValue.getStyledDocument();
    final Boolean matchCase = matchCaseValue.isSelected();
    try {
        doc.remove(0, doc.getLength());
        ModuleDependency[] deps = getSelectedDependencies();
        if (deps.length != 1) {
            return;
        }
        String longDesc = deps[0].getModuleEntry().getLongDescription();
        if (longDesc != null) {
            doc.insertString(0, longDesc, null);
        }
        String filterText = filterValue.getText().trim();
        if (filterText.length() != 0 && !FILTER_DESCRIPTION.equals(filterText)) {
            doc.insertString(doc.getLength(), "\n\n", null); // NOI18N
            Style bold = doc.addStyle(null, null);
            bold.addAttribute(StyleConstants.Bold, Boolean.TRUE);
            doc.insertString(doc.getLength(), getMessage("TEXT_matching_filter_contents"), bold);
            doc.insertString(doc.getLength(), "\n", null); // NOI18N
            if (filterText.length() > 0) {
                String filterTextLC = matchCase?filterText:filterText.toLowerCase(Locale.US);
                Style match = doc.addStyle(null, null);
                match.addAttribute(StyleConstants.Background, UIManager.get("selection.highlight")!=null?
                        UIManager.get("selection.highlight"):new Color(246, 248, 139));
                boolean isEven = false;
                Style even = doc.addStyle(null, null);
                even.addAttribute(StyleConstants.Background, UIManager.get("Panel.background"));
                if (filterer == null) {
                    return; // #101776
                }
                for (String hit : filterer.getMatchesFor(filterText, deps[0])) {
                    int loc = doc.getLength();
                    doc.insertString(loc, hit, (isEven ? even : null));
                    int start = (matchCase?hit:hit.toLowerCase(Locale.US)).indexOf(filterTextLC);
                    while (start != -1) {
                        doc.setCharacterAttributes(loc + start, filterTextLC.length(), match, true);
                        start = hit.toLowerCase(Locale.US).indexOf(filterTextLC, start + 1);
                    }
                    doc.insertString(doc.getLength(), "\n", (isEven ? even : null)); // NOI18N
                    isEven ^= true;
                }
            } else {
                Style italics = doc.addStyle(null, null);
                italics.addAttribute(StyleConstants.Italic, Boolean.TRUE);
                doc.insertString(doc.getLength(), getMessage("TEXT_no_filter_specified"), italics);
            }
        }
        descValue.setCaretPosition(0);
    } catch (BadLocationException e) {
        Util.err.notify(ErrorManager.INFORMATIONAL, e);
    }
}
 

private Style createBodyStyle(Font font) {
    Style style = addStyle("body", null);
    style.addAttribute(StyleConstants.FontFamily, font.getFamily());
    style.addAttribute(StyleConstants.FontSize, Integer.valueOf(font.getSize()));
    return style;
}