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
def handle_barcode(db, data):
if data.startswith("@"):
license_data = decode_pdf417(data)
db.reg_set('license_data', license_data)
else:
db.reg_set('barcode_data', data)
handle_next_entry(db, data)
#######################################
if __name__ == '__main__':
logging.warning("start barcode scanner mule")
db = get_db()
log = logging.getLogger('barcode_scanner_mule')
scanner = BarcodeScanner()
open_state = True
port = None
poll_time = 0
while True:
if poll_time < time():
poll_time = time() + DB_POLL_INTERVAL
port = db.reg_get('serial_port_barcode')
if scanner.is_open() and scanner.port != port:
scanner.close()
elif scanner.is_open():
barcode_data = scanner.read()
if barcode_data is not None:
handle_barcode(db, barcode_data)
def handle_barcode(db, data):
if data.startswith("@"):
license_data = decode_pdf417(data)
db.reg_set('license_data', license_data)
else:
db.reg_set('barcode_data', data)
handle_next_entry(db, data)
#######################################
if __name__ == '__main__':
logging.warning("start barcode scanner mule")
db = get_db()
log = logging.getLogger('barcode_scanner_mule')
scanner = BarcodeScanner()
open_state = True
port = None
poll_time = 0
while True:
if poll_time < time():
poll_time = time() + DB_POLL_INTERVAL
port = db.reg_get('serial_port_barcode')
if scanner.is_open() and scanner.port != port:
scanner.close()
elif scanner.is_open():
barcode_data = scanner.read()
if barcode_data is not None:
handle_barcode(db, barcode_data)
#!/usr/bin/python
# coding=utf-8
from CharLCDPlate import NumberSelector, CharLCDPlate
from gaia.webservice.Webservice import Webservice
from gaia.webservice.Settings import Settings
from time import sleep
from barcode_scanner import BarcodeScanner
# Configuration
settings = Settings()
lcd = CharLCDPlate()
sel = NumberSelector(lcd)
scanner = BarcodeScanner.find_scanner()
# Create webservice and set last token from configuration
ws = Webservice(settings.get("url"))
ws.token = settings.get("token")
ws.username = settings.get("username")
ws.password = settings.get("password")
def packer_selected_callback(ws):
def callback(sel, number):
result = ws.call("Packaging", "getPackerInfo", {"packerId": number})
print(result)
lcd.clear()
if result["_success"]:
lcd.message("Hallo,\n%s!" % result["name"].encode("ascii", "replace"))