def get_zpl_printer(self):
printer = StateManager.getInstance().printer_zpl
# print test request coming out
if printer.print_test_request:
self.push_task('printstatus')
printer.print_test_request = False
printer_device = None
try:
printer_device = Usb(printer.vendor_id, printer.product_id)
printer.status = Printer.STATUS_CONNECTED
return printer_device
except usb.core.USBError:
printer.status = Printer.STATUS_DISCONNECTED
finally:
if printer.status != self.current_printer_status:
self.current_printer_status = printer.status
if printer_device:
self.set_status(
'connected', "Connected to %s (in=0x%02x,out=0x%02x)" %
(printer.description, printer_device.in_ep,
printer_device.out_ep))
else:
self.set_status('disconnected', 'Printer Not Found')
# update status in GUI
self.printer_status_signal.emit(str(StateManager.ZPL_PRINTER),
str(printer.status))
return printer_device
def setup_log():
state = StateManager.getInstance()
logformat = '%(asctime)s - %(funcName)s - %(levelname)s: %(message)s'
if state.is_frozen is False:
logging.basicConfig(format=logformat,
level=state.log.level,
handlers=[logging.StreamHandler()])
else:
logging.basicConfig(format=logformat,
level=state.log.level,
filename=state.get_log().filename,
filemode='a')
def run(self):
app = HTTPServer()
def get_all_subclasses(cls):
all_subclasses = []
for subclass in cls.__subclasses__():
all_subclasses.append(subclass)
all_subclasses.extend(get_all_subclasses(subclass))
return all_subclasses
# register all controller
controllers = get_all_subclasses(Controller)
for controller in controllers:
controller.register(app)
app.install(EnableCorsPlugin())
app.install(JSONRPCPlugin())
port = StateManager.getInstance().web_service.port
app.run(host='0.0.0.0', port=port, debug=False)
def __init__(self, parent=None):
super(LinkBox, self).__init__(parent)
self.state = StateManager.getInstance()
self.state.set_dialog(self)
self.setupUi(self)
self.setWindowTitle('LinkBox')
self._register_thread()
self._register_signal()
# attribute registration
self.printer_zpl_model = QtGui.QStandardItemModel()
self.printer_escpos_model = QtGui.QStandardItemModel()
# update status
try:
self._init_ui()
except usb.core.NoBackendError as e:
QtWidgets.QMessageBox.question(self, 'System Error', str(e),
QtWidgets.QMessageBox.Close)
sys.exit()
def show_dialog(self):
StateManager.getInstance().show_dialog()
