示例#1
1
    // TODO: make this a method of SikuliDocument, no need to pass document as argument
    private void changeIndentation(DefaultStyledDocument doc, int linenum, int columns)
        throws BadLocationException {
      PreferencesUser pref = PreferencesUser.getInstance();
      boolean expandTab = pref.getExpandTab();
      int tabWidth = pref.getTabWidth();

      if (linenum < 0) {
        throw new BadLocationException("Negative line", -1);
      }
      Element map = doc.getDefaultRootElement();
      if (linenum >= map.getElementCount()) {
        throw new BadLocationException("No such line", doc.getLength() + 1);
      }
      if (columns == 0) {
        return;
      }

      Element lineElem = map.getElement(linenum);
      int lineStart = lineElem.getStartOffset();
      int lineLength = lineElem.getEndOffset() - lineStart;
      String line = doc.getText(lineStart, lineLength);

      // determine current indentation and number of whitespace characters
      int wsChars;
      int indentation = 0;
      for (wsChars = 0; wsChars < line.length(); wsChars++) {
        char c = line.charAt(wsChars);
        if (c == ' ') {
          indentation++;
        } else if (c == '\t') {
          indentation += tabWidth;
        } else {
          break;
        }
      }

      int newIndentation = indentation + columns;
      if (newIndentation <= 0) {
        doc.remove(lineStart, wsChars);
        return;
      }

      // build whitespace string for new indentation
      StringBuilder newWs = new StringBuilder(newIndentation / tabWidth + tabWidth - 1);
      int ind = 0;
      if (!expandTab) {
        for (; ind + tabWidth <= newIndentation; ind += tabWidth) {
          newWs.append('\t');
        }
      }
      for (; ind < newIndentation; ind++) {
        newWs.append(' ');
      }
      doc.replace(lineStart, wsChars, newWs.toString(), null);
    }
示例#2
0
  /**
   * Initializes the document.
   *
   * @param props the properties to obtain the setup from
   */
  public SyntaxDocument(Properties props) {
    m_Self = this;
    m_RootElement = m_Self.getDefaultRootElement();
    m_Keywords = new HashMap<String, MutableAttributeSet>();
    m_FontSize = DEFAULT_FONT_SIZE;
    m_FontName = DEFAULT_FONT_FAMILY;
    putProperty(DefaultEditorKit.EndOfLineStringProperty, "\n");

    setup(props);
  }