/** {@inheritDoc} */
  @Override
  public void readPreferences(final UserSettings aSettings) {
    // Issue #114: avoid setting illegal values...
    setComboBoxIndex(this.rxd, aSettings, "rxd");
    setComboBoxIndex(this.txd, aSettings, "txd");
    setComboBoxIndex(this.cts, aSettings, "cts");
    setComboBoxIndex(this.rts, aSettings, "rts");
    setComboBoxIndex(this.dtr, aSettings, "dtr");
    setComboBoxIndex(this.dsr, aSettings, "dsr");
    setComboBoxIndex(this.dcd, aSettings, "dcd");
    setComboBoxIndex(this.ri, aSettings, "ri");

    this.parity.setSelectedIndex(aSettings.getInt("parity", this.parity.getSelectedIndex()));
    this.bits.setSelectedIndex(aSettings.getInt("bits", this.bits.getSelectedIndex()));
    this.stop.setSelectedIndex(aSettings.getInt("stop", this.stop.getSelectedIndex()));
    this.idleLevel.setSelectedIndex(
        aSettings.getInt("idle-state", this.idleLevel.getSelectedIndex()));
    this.bitEncoding.setSelectedIndex(
        aSettings.getInt("bit-encoding", this.bitEncoding.getSelectedIndex()));
    this.bitOrder.setSelectedIndex(aSettings.getInt("bit-order", this.bitOrder.getSelectedIndex()));
    this.baudrate.setSelectedItem(Integer.valueOf(aSettings.getInt("baudrate", 9600)));
    this.autoDetectBaudRate.setSelected(
        aSettings.getBoolean("auto-baudrate", this.autoDetectBaudRate.isSelected()));
  }