Line number in JEditorPane

Question

I would like to know the line number of the current caret position in a JEditorPane. The getLineOfOffset(int offset) method in JTextArea offers exactly what I want. How come there's no method to find out about line number in JEditorPane?
As a workaround, I copied the Swing code from the JTextArea.getLineOfOffset method and used it in my class which extends from JEditorPane. It seems to work fine, but it feels like a bad hack. Will the JTextArea code always work in JEditorPane? Any alternatives? I just think that it's tedious and inefficient to deal with StringTokenizer or manually searching for new line charactors on CaretEvent's.
    public int getLineOfOffset(int offset) throws BadLocationException {
        Document doc = getDocument();
        if (offset < 0) {
            throw new BadLocationException("Can't translate offset to line", -1);
        } else if (offset > doc.getLength()) {
            throw new BadLocationException("Can't translate offset to line", doc.getLength()+1);
        } else {
            Element map = getDocument().getDefaultRootElement();
            return map.getElementIndex(offset);
    }

Answer 1

It's not a hack. Any document used with a Swing text component is supposed to have the same basic element structure, i.e., a default root element whose children represent logical lines. It's just that with some kinds of documents, like HTML, line numbers don't really mean anything. But JTextArea is hard-coded to use a PlainDocument, which means a logical line always represents a paragraph (or a line of code, or something meaningful), so it made sense for it to provide those convenience methods.