ui->horizontalLayout->addWidget(bsReader.settingsWidget(), 1);

    connect(&bsReader, SIGNAL(numOfChannelsChanged(unsigned)),

            this, SIGNAL(numOfChannelsChanged(unsigned)));

    // initalize reader selection buttons

    connect(ui->rbBinary, &QRadioButton::toggled, [this](bool checked)

            {

                if (checked) selectReader(&bsReader);

            });

    connect(ui->rbAscii, &QRadioButton::toggled, [this](bool checked)

            {

                if (checked) selectReader(&asciiReader);

            });

    connect(ui->rbFramed, &QRadioButton::toggled, [this](bool checked)

            {

                if (checked) selectReader(&framedReader);

            });

}

DataFormatPanel::~DataFormatPanel()

{

    delete ui;

}

unsigned DataFormatPanel::numChannels() const

{

    return currentReader->numChannels();

}

Source* DataFormatPanel::activeSource()

{

    return currentReader;

}

void DataFormatPanel::pause(bool enabled)

{

    paused = enabled;

    currentReader->pause(enabled);

    demoReader.pause(enabled);

}

void DataFormatPanel::enableDemo(bool enabled)

{

    if (enabled)

    {

        readerBeforeDemo = currentReader;

        selectReader(&demoReader);

    }

    else

    {

        Q_ASSERT(readerBeforeDemo != nullptr);

        selectReader(readerBeforeDemo);

    }

    demoEnabled = enabled;

    // disable/enable reader selection buttons during/after demo

    ui->rbAscii->setDisabled(demoEnabled);

    ui->rbBinary->setDisabled(demoEnabled);

    ui->rbFramed->setDisabled(demoEnabled);

}

void DataFormatPanel::selectReader(AbstractReader* reader)

{

    currentReader->enable(false);

    reader->enable();

    // re-connect signals

    disconnect(currentReader, 0, this, 0);

    connect(reader, SIGNAL(numOfChannelsChanged(unsigned)),

            this, SIGNAL(numOfChannelsChanged(unsigned)));

    // switch the settings widget

    ui->horizontalLayout->removeWidget(currentReader->settingsWidget());

    currentReader->settingsWidget()->hide();

    ui->horizontalLayout->addWidget(reader->settingsWidget(), 1);

    reader->settingsWidget()->show();

    // notify if number of channels is different

    if (currentReader->numChannels() != reader->numChannels())

    {

        emit numOfChannelsChanged(reader->numChannels());

    }

    reader->pause(paused);

    currentReader = reader;

    emit sourceChanged(currentReader);

}

void DataFormatPanel::saveSettings(QSettings* settings)

{

    settings->beginGroup(SettingGroup_DataFormat);