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namespace Ui {
    class qtPMK;
}

class qtPMK : public QMainWindow
{
    Q_OBJECT

public:
    explicit qtPMK(QWidget *parent = 0);
    ~qtPMK();
    Q_INVOKABLE void GoInSystem(QString,QString);
    Q_INVOKABLE QVariantMap GetCategoryes();
    Q_INVOKABLE int GetWidth(){
        return QApplication::desktop()->width();
    }
    Q_INVOKABLE int GetHeight(){
        return QApplication::desktop()->height();
    }
    Q_INVOKABLE void createOrder();

private slots:
    void authorized();
    void showMessageBox(const Error &e);

    void on_lineEditAuthEnterPassword_returnPressed();
private:
    enum { AUTH, CULINARY, SHOP, SYSTEM };
    DriverKkm *kassa;
    QRegExpValidator *passwordValidator;
    QDeclarativeView *ui;
    Config config;
    Cashier cashier;

    OrderSaver currentOrder;
    QList<Order*> orders;
    Module::DB::Abstract *db;
    Module::Auth::LoginPassword *loginPasswordAuth;
    QObject *Root;//корневой элемент QML модели
    void installValidators();
    void installData();
    void installSignalSlots();
};

DriverKkm::DriverKkm(QString port,KKM type,QByteArray passwordBytes)
{
    switch(type)
    {
        case FPRINT5200: kkm = new Fprint5200(port,passwordBytes);break;
    }
}

QString kkm_port = config.getOption<QString>("kkm_port");
kassa = new DriverKkm(kkm_port,FPRINT5200);

qtPMK::qtPMK
{
QString kkm_port = config.getOption<QString>("kkm_port");
kassa = new DriverKkm(kkm_port,FPRINT5200);// либо можно вообще так kassa = new DriverKkm("/dev/ttyUSB0",FPRINT5200);
}

class Test{
Test(){}
Test(QString str){
QDebug()<<str;
}
};
qtPMK::qtPMK
{
Test *testOut = new Test("Hello");
}