class Driver:
"""Driver class. For managing scanner hw"""
def __init__(self):
self.isConnected = False
#TODO: Callbacks to Observer pattern
self.beforeCallback = None
self.afterCallback = None
self.unplugged = False
self.board = Board(self)
self.camera = Camera(self)
def setCallbacks(self, before, after):
self.beforeCallback = before
self.afterCallback = after
def connect(self):
if self.beforeCallback is not None:
self.beforeCallback()
threading.Thread(target=self._connect,
args=(self.afterCallback, )).start()
def _connect(self, callback):
error = None
self.isConnected = False
try:
self.camera.connect()
self.board.connect()
except WrongFirmware:
error = Error.WrongFirmware
except BoardNotConnected:
error = Error.BoardNotConnected
except CameraNotConnected:
error = Error.CameraNotConnected
except WrongCamera:
error = Error.WrongCamera
except InvalidVideo:
error = Error.InvalidVideo
else:
self.isConnected = True
finally:
if error is None:
self.unplugged = False
response = (True, self.isConnected)
else:
response = (False, error)
self.disconnect()
if callback is not None:
callback(response)
def disconnect(self):
self.isConnected = False
self.camera.disconnect()
self.board.disconnect()
class Driver: """Driver class. For managing scanner hw""" def __init__(self): self.isConnected = False #TODO: Callbacks to Observer pattern self.beforeCallback = None self.afterCallback = None self.unplugged = False self.board = Board(self) self.camera = Camera(self) def setCallbacks(self, before, after): self.beforeCallback = before self.afterCallback = after def connect(self): if self.beforeCallback is not None: self.beforeCallback() threading.Thread(target=self._connect, args=(self.afterCallback,)).start() def _connect(self, callback): error = None self.isConnected = False try: self.camera.connect() self.board.connect() except WrongFirmware: error = Error.WrongFirmware except BoardNotConnected: error = Error.BoardNotConnected except CameraNotConnected: error = Error.CameraNotConnected except WrongCamera: error = Error.WrongCamera except InvalidVideo: error = Error.InvalidVideo else: self.isConnected = True finally: if error is None: self.unplugged = False response = (True, self.isConnected) else: response = (False, error) self.disconnect() if callback is not None: callback(response) def disconnect(self): self.isConnected = False self.camera.disconnect() self.board.disconnect()
def __init__(self):
self.isConnected = False
#TODO: Callbacks to Observer pattern
self.beforeCallback = None
self.afterCallback = None
self.unplugged = False
self.board = Board(self)
self.camera = Camera(self)
def __init__(self): self.isConnected = False #TODO: Callbacks to Observer pattern self.beforeCallback = None self.afterCallback = None self.unplugged = False self.board = Board(self) self.camera = Camera(self)
