def search_scanner(self):
""" Called from the scanner thread, this will keep searching for a barcode scanner until it is found. """
self.scanner = None
while self.scanner is None:
sleep(1)
self.scanner = BarcodeScanner.get_scanner()
if self.quit_event.isSet():
return
self.add_event((self.EVENT_DEVICE, "plugged_in"))
def __init__(self, settings, lcd):
self.settings = settings
self.lcd = lcd
self.sel = NumberSelector(self.lcd)
self.sel.callback = self.select_packer_callback
self.menu = Menu(self.lcd)
self.menu.callback = self.menu_callback
self.scanner = BarcodeScanner.get_scanner()
self.mode = self.MODE_SELECT_PACKER
self.terminal_id = self.settings.get("terminal")
self.ws = Webservice(self.settings.get("url"))
self.ws.token = self.settings.get("token")
self.ws.username = self.settings.get("username")
self.ws.password = self.settings.get("password")
self.scanner_thread = Thread(target=self.scanner_thread, name="scanner_thread")
self.buttons_thread = Thread(target=self.buttons_thread, name="buttons_thread")
self.timer_thread = Thread(target=self.timer_thread, name="timer_thread")
self.scanner_thread.daemon = True
self.buttons_thread.daemon = True
self.timer_thread.daemon = True
self.lock = Lock()
self.semaphore = Semaphore()
self.timer_event = Event()
self.quit_event = Event()
self.event_stack = list()
# Tracking status variables
self.packer_id = None
self.invoice = None
self.start_time = None
self.order_info = None
# Saved previous modes for special cases
self.previous_mode_menu = None
