def __init__(self):
super(Ui_MainWindow, self).__init__()
self.ui = uic.loadUi('my_grocery_pal.ui', self)
self.show()
self.uart = Uart()
self.name = ''
self.barcode = ''
self.received_barcode.textChanged.connect(self.get_barcode)
self.uart_timer = QtCore.QTimer()
self.uart_timer.timeout.connect(self.get_servings)
#self.uart_timer.start(5000)
self.screen_timeout = QtCore.QTimer()
self.screen_timeout.timeout.connect(self.blank_screen)
self.screen_timeout.start(120000)
def __init__(self):
super(Ui_MainWindow, self).__init__()
self.ui = uic.loadUi('my_grocery_pal.ui', self)
self.show()
self.uart = Uart()
self.name = ''
self.barcode = ''
self.received_barcode.textChanged.connect(self.get_barcode)
self.uart_timer = QtCore.QTimer()
self.uart_timer.timeout.connect(self.get_servings)
#self.uart_timer.start(5000)
self.screen_timeout = QtCore.QTimer()
self.screen_timeout.timeout.connect(self.blank_screen)
self.screen_timeout.start(120000)
class Ui_MainWindow(QtGui.QMainWindow):
def __init__(self):
super(Ui_MainWindow, self).__init__()
self.ui = uic.loadUi('my_grocery_pal.ui', self)
self.show()
self.uart = Uart()
self.name = ''
self.barcode = ''
self.received_barcode.textChanged.connect(self.get_barcode)
self.uart_timer = QtCore.QTimer()
self.uart_timer.timeout.connect(self.get_servings)
#self.uart_timer.start(5000)
self.screen_timeout = QtCore.QTimer()
self.screen_timeout.timeout.connect(self.blank_screen)
self.screen_timeout.start(120000)
def get_item_name(self, upc_dictionary):
try:
item_name = upc_dictionary['itemname']
description = upc_dictionary['description']
if item_name == '':
return description.title()
else:
return item_name.title()
except KeyError:
return None
def lookup_barcode(self, barcode):
# API doesn't accept the first int in the barcode
barcode = barcode[1:]
api_request = urllib2.Request(
'%s%s%s' % (UPC_DATABASE_URL, UPC_LOOKUP_API_KEY, barcode))
upc_database = urllib2.urlopen(api_request).read()
return json.loads(upc_database)
def get_barcode(self):
self.screen_timeout.stop()
try:
barcode = self.received_barcode.text()
except KeyboardInterrupt:
sys.exit(1)
if barcode is '':
return
self.barcode = barcode
upc_dictionary = self.lookup_barcode(barcode)
self.name = self.get_item_name(upc_dictionary)
if self.name is None:
self.update_text(self.ui.item_name, 'Item name not found')
else:
self.update_text(self.ui.item_name, self.name)
self.update_text(self.ui.serving_prompt, 'Enter Servings')
self.update_text(self.ui.servings_input, '')
self.uart_timer.start(200)
def get_servings(self):
self.screen_timeout.stop()
servings_package = self.uart.receive_uart_data(True)
self.uart_timer.stop()
number = servings_package.split('>')[1][1:]
in_out = servings_package.split('>')[2][1:]
self.update_servings_display(number, in_out)
time.sleep(0.25)
self.uart_timer.start(200)
self.screen_timeout.start(120000)
def update_servings_display(self, number, in_out):
if number is not '*' and number is not '#':
current = self.ui.servings_input.text()
self.ui.servings_input.setText('%s%s' % (current, number))
elif number is '*':
current = self.ui.servings_input.text()
if len(current) > 0:
self.ui.servings_input.setText(current[:-1])
elif number is '#': # Send via UART
self.uart_timer.stop()
current = self.ui.servings_input.text()
if len(current) is 0:
current = 1
uart_package = self.uart.create_barcode_package(
self.barcode, self.name, current)
self.save_file(current, in_out)
self.uart.send_uart_data(uart_package)
def update_text(self, widget, text):
widget.setText(text)
def blank_screen(self):
os.system('xset dpms force off')
def save_file(self, servings, in_out):
inventory = Inventory()
date = datetime.datetime.now()
date_string = '%d/%d/%d' % (date.month, date.day, date.year)
inv = inventory.update_file(self.barcode, servings, date_string,
self.name, in_out)
self.update_text(self.ui.status, '%s in inventory' % (inv))
time.sleep(3)
reset_settings()
def reset_settings(self):
self.barcode = ''
self.name = ''
self.ui.received_barcode.setText('')
class Ui_MainWindow(QtGui.QMainWindow):
def __init__(self):
super(Ui_MainWindow, self).__init__()
self.ui = uic.loadUi('my_grocery_pal.ui', self)
self.show()
self.uart = Uart()
self.name = ''
self.barcode = ''
self.received_barcode.textChanged.connect(self.get_barcode)
self.uart_timer = QtCore.QTimer()
self.uart_timer.timeout.connect(self.get_servings)
#self.uart_timer.start(5000)
self.screen_timeout = QtCore.QTimer()
self.screen_timeout.timeout.connect(self.blank_screen)
self.screen_timeout.start(120000)
def get_item_name(self, upc_dictionary):
try:
item_name = upc_dictionary['itemname']
description = upc_dictionary['description']
if item_name == '':
return description.title()
else:
return item_name.title()
except KeyError:
return None
def lookup_barcode(self, barcode):
# API doesn't accept the first int in the barcode
barcode = barcode[1:]
api_request = urllib2.Request('%s%s%s' % (UPC_DATABASE_URL,
UPC_LOOKUP_API_KEY,
barcode))
upc_database = urllib2.urlopen(api_request).read()
return json.loads(upc_database)
def get_barcode(self):
self.screen_timeout.stop()
try:
barcode = self.received_barcode.text()
except KeyboardInterrupt:
sys.exit(1)
if barcode is '':
return
self.barcode = barcode
upc_dictionary = self.lookup_barcode(barcode)
self.name = self.get_item_name(upc_dictionary)
if self.name is None:
self.update_text(self.ui.item_name, 'Item name not found')
else:
self.update_text(self.ui.item_name, self.name)
self.update_text(self.ui.serving_prompt, 'Enter Servings')
self.update_text(self.ui.servings_input, '')
self.uart_timer.start(200)
def get_servings(self):
self.screen_timeout.stop()
servings_package = self.uart.receive_uart_data(True)
self.uart_timer.stop()
number = servings_package.split('>')[1][1:]
in_out = servings_package.split('>')[2][1:]
self.update_servings_display(number, in_out)
time.sleep(0.25)
self.uart_timer.start(200)
self.screen_timeout.start(120000)
def update_servings_display(self, number, in_out):
if number is not '*' and number is not '#':
current = self.ui.servings_input.text()
self.ui.servings_input.setText('%s%s' %(current, number))
elif number is '*':
current = self.ui.servings_input.text()
if len(current) > 0:
self.ui.servings_input.setText(current[:-1])
elif number is '#': # Send via UART
self.uart_timer.stop()
current = self.ui.servings_input.text()
if len(current) is 0:
current = 1
uart_package = self.uart.create_barcode_package(self.barcode, self.name, current)
self.save_file(current, in_out)
self.uart.send_uart_data(uart_package)
def update_text(self, widget, text):
widget.setText(text)
def blank_screen(self):
os.system('xset dpms force off')
def save_file(self, servings, in_out):
inventory = Inventory()
date = datetime.datetime.now()
date_string = '%d/%d/%d' %(date.month, date.day, date.year)
inv = inventory.update_file(self.barcode, servings, date_string, self.name, in_out)
self.update_text(self.ui.status, '%s in inventory' %(inv))
time.sleep(3)
reset_settings()
def reset_settings(self):
self.barcode = ''
self.name = ''
self.ui.received_barcode.setText('')
