Method for addition of formatted text field implemented

        return slider;

    }

    public JFormattedTextField addFormattedInputField(IntValueRange range, ActionListener inputAction) {

        GridBagConstraints c = new GridBagConstraints();

        c.gridwidth = 2;

        c.gridx = col;

        col += 2;

        c.gridy = row;

        c.anchor = GridBagConstraints.CENTER;

        c.fill = GridBagConstraints.BOTH;

        NumberFormatter formatter;

        if (range == null) { // percents in [0,1] => use two digit double

            NumberFormat format = DecimalFormat.getInstance(Locale.getDefault());

            format.setMinimumFractionDigits(1);

            format.setMaximumFractionDigits(NUMBER_OF_FRACTION_DIGITS);

            format.setRoundingMode(RoundingMode.HALF_UP);

            formatter = new NumberFormatter(format);

            formatter.setValueClass(Double.class);

            formatter.setMinimum(0.0);

            formatter.setMaximum(1.0);

        } else {

            NumberFormat format = NumberFormat.getInstance();

            formatter = new NumberFormatter(format);

            formatter.setValueClass(Integer.class);

            formatter.setMinimum(range.getMinimum());

            formatter.setMaximum(range.getMaximum());

        }

        formatter.setAllowsInvalid(false);

        JFormattedTextField input = new JFormattedTextField(formatter);

        input.setText("0");

        input.addActionListener(inputAction);

        controlPanel.add(input, c);

        return input;

    }

    /**

     * Adds a scrollable pane that carries the given panel as its content.

     *