private void lineWrap(LetterQuad l) {
        if (l.isHead() || l.isBlank())
            return;
        l.getPrevious().setEndOfLine();
        l.invalidate();
        l.update(block);
    }
Manage and align LetterQuads
@author YongHoon
jme3-core/src/main/java/com/jme3/font/Letters.java