/**
     * Returns the state of the button. True if the
     * toggle button is selected, false if it's not.
     * @return true if the toggle button is selected, otherwise false
     */
    public boolean isSelected() {
        return model.isSelected();
    }
 
    /**
     * Sets the state of the button. Note that this method does not
     * trigger an <code>actionEvent</code>.
     * Call <code>doClick</code> to perform a programatic action change.
     *
     * @param b  true if the button is selected, otherwise false
     */
    public void setSelected(boolean b) {
        boolean oldValue = isSelected();

        // TIGER - 4840653
        // Removed code which fired an AccessibleState.SELECTED
        // PropertyChangeEvent since this resulted in two
        // identical events being fired since
        // AbstractButton.fireItemStateChanged also fires the
        // same event. This caused screen readers to speak the
        // name of the item twice.

        model.setSelected(b);
    }

    /**
     * Programmatically perform a "click". This does the same
     * thing as if the user had pressed and released the button.
     */
    public void doClick() {
        doClick(68);
    }

    /**
     * Programmatically perform a "click". This does the same
     * thing as if the user had pressed and released the button.
     * The button stays visually "pressed" for <code>pressTime</code>
     *  milliseconds.
     *
     * @param pressTime the time to "hold down" the button, in milliseconds
     */
    public void doClick(int pressTime) {
        Dimension size = getSize();
        model.setArmed(true);
        model.setPressed(true);
        paintImmediately(new Rectangle(0,0, size.width, size.height));
        try {
            Thread.currentThread().sleep(pressTime);
        } catch(InterruptedException ie) {
        }
        model.setPressed(false);
        model.setArmed(false);
    }

    /**
     * Sets space for margin between the button's border and
     * the label. Setting to <code>null</code> will cause the button to
     * use the default margin.  The button's default <code>Border</code>
     * object will use this value to create the proper margin.
     * However, if a non-default border is set on the button, 
     * it is that <code>Border</code> object's responsibility to create the
     * appropriate margin space (else this property will
     * effectively be ignored).
     *
     * @param m the space between the border and the label
     *
     * @beaninfo
     *        bound: true
     *    attribute: visualUpdate true
     *  description: The space between the button's border and the label.
     */
    public void setMargin(Insets m) {
        // Cache the old margin if it comes from the UI
        if(m instanceof UIResource) {
            defaultMargin = m;
        } else if(margin instanceof UIResource) {
            defaultMargin = margin;
        }
            
        // If the client passes in a null insets, restore the margin
        // from the UI if possible
        if(m == null && defaultMargin != null) {
            m = defaultMargin;
        }

        Insets old = margin;
        margin = m;
        firePropertyChange(MARGIN_CHANGED_PROPERTY, old, m);
        if (old == null || !old.equals(m)) {
            revalidate();
            repaint();
        }
    }