public BooleanAttribute(int d,
    Object s,
    String r) 
{
            super(d, s, r);
            swingDefault = false;
            rtfDefault = false;
}

 public BooleanAttribute(int d,
    Object s,
    String r,
    boolean ds,
    boolean dr) 
{
            
            super(d, s, r);
            swingDefault = ds;
            rtfDefault = dr;
}

 public boolean set(MutableAttributeSet target) 
{
            /* TODO: There's some ambiguity about whether this should
               *set* or *toggle* the attribute. */
            target.addAttribute(swingName, True);
            return true;  /* true indicates we were successful */
}

 public boolean set(MutableAttributeSet target,
    int parameter) 
{
            /* See above note in the case that parameter==1 */
            Boolean value = ( parameter != 0 ? True : False );
            target.addAttribute(swingName, value);
            return true; /* true indicates we were successful */
}

 public boolean setDefault(MutableAttributeSet target) 
{
            if (swingDefault != rtfDefault ||
                ( target.getAttribute(swingName) != null ) )
              target.addAttribute(swingName, Boolean.valueOf(rtfDefault));
            return true;
}

 public boolean writeValue(Object o_value,
    RTFGenerator target,
    boolean force) throws IOException 
{
            Boolean val;
            if (o_value == null)
              val = Boolean.valueOf(swingDefault);
            else
              val = (Boolean)o_value;
            if (force || (val.booleanValue() != rtfDefault)) {
                if (val.booleanValue()) {
                    target.writeControlWord(rtfName);
                } else {
                    target.writeControlWord(rtfName, 0);
                }
            }
            return true;
}