Exemplo n.º 1
0
 def get_description(self):
     # Quick workaround to avoid calling FiscalPrinter.setup(), since that
     # may send commands to the ECF, and we just need the description.
     # TODO: Improve stoqdrivers so we can get this easyer
     port = VirtualPort()
     port.setTimeout = lambda x: True
     port.setParity = lambda x: True
     port.setWriteTimeout = lambda x: True
     driver = BasePrinter(brand=self.brand, model=self.model, port=port)
     return driver.get_model_name()
Exemplo n.º 2
0
 def get_description(self):
     # Quick workaround to avoid calling FiscalPrinter.setup(), since that
     # may send commands to the ECF, and we just need the description.
     # TODO: Improve stoqdrivers so we can get this easyer
     port = VirtualPort()
     port.setTimeout = lambda x: True
     port.setParity = lambda x: True
     port.setWriteTimeout = lambda x: True
     driver = BasePrinter(brand=self.brand, model=self.model, port=port)
     return driver.get_model_name()
Exemplo n.º 3
0
    def get_interface(self):
        """ Based on the column values instantiate the stoqdrivers interface
        for the device itself.
        """
        if self.device_name == '/dev/null':
            interface = 'serial'
            port = VirtualPort()
            product_id = vendor_id = None
        elif self.device_name.startswith('usb:'):
            # USB device
            interface, vendor_id, product_id = self.device_name.split(':')
            vendor_id = int(vendor_id, 16)
            product_id = int(product_id, 16)
            port = None
        else:
            # Serial device
            interface = 'serial'
            port = self._get_serial_port()
            product_id = vendor_id = None

        if self.type == DeviceSettings.CHEQUE_PRINTER_DEVICE:
            return ChequePrinter(brand=self.brand, model=self.model, port=port)
        elif self.type == DeviceSettings.NON_FISCAL_PRINTER_DEVICE:
            return NonFiscalPrinter(brand=self.brand, model=self.model,
                                    port=port, interface=interface,
                                    product_id=product_id, vendor_id=vendor_id)
        elif self.type == DeviceSettings.SCALE_DEVICE:
            return Scale(brand=self.brand, model=self.model,
                         device=self.device_name, port=port)

        raise DatabaseInconsistency("The device type referred by this "
                                    "record (%r) is invalid, given %r."
                                    % (self, self.type))
Exemplo n.º 4
0
 def _create_port(self, baudrate):
     if self._device_name == '/dev/null':
         return VirtualPort()
     port = SerialPort(device=self._device_name, baudrate=baudrate)
     port.writeTimeout = 5
     if platform.system() != 'Windows':
         port.nonblocking()
     return port
Exemplo n.º 5
0
 def get_fiscal_driver(self):
     if self.brand == 'virtual':
         port = VirtualPort()
     else:
         port = SerialPort(device=self.device_name, baudrate=self.baudrate)
     return FiscalPrinter(brand=self.brand, model=self.model, port=port)