def serialport_selected(self, selected_port):
logging.debug('Selected port {}'.format(selected_port))
if selected_port == SerialPortSelector.EMULATOR:
self.communicator = EmulatedCommunicator()
else:
try:
self.communicator = SerialPortCommunicator(selected_port)
except SerialException as e:
QtWidgets.QMessageBox.critical(
self,
'Error!',
'Could not connect to serial port {}<br><br>The error was: {}'.format(selected_port, e.strerror)
)
QtCore.QTimer.singleShot(0, self.close)
return
self.communicator.received_message.connect(self.reader_received_message)
self.communicator.sent_message.connect(self.writer_sent_message)
self.communicator.send_message(PingMessage())
self.init_gui()
del self.serialport_selector
class MainWindow(QtWidgets.QMainWindow):
parameters_widget = None
SETTINGS_MAINWINDOW_GEOMETRY = "main_window_geometry"
def __init__(self):
super().__init__()
self.settings = QSettings('olle-orks.org', 'Bodenpython')
self.setWindowTitle('Mikrokopter Bodenpython')
self.communicator = None
self.list_widget = None
self.pingpong_widget = None
self.serialport_selector = None
saved_geometry = self.settings.value(self.SETTINGS_MAINWINDOW_GEOMETRY)
if saved_geometry:
self.restoreGeometry(saved_geometry)
self.serialport_selector = SerialPortSelector(self.settings)
self.serialport_selector.accepted.connect(self.serialport_selected)
self.serialport_selector.rejected.connect(self.close)
selector_layout = QHBoxLayout()
selector_layout.addStretch()
selector_layout.addWidget(self.serialport_selector)
selector_layout.addStretch()
central_widget = QWidget()
central_layout = QVBoxLayout()
central_layout.addStretch()
central_layout.addLayout(selector_layout)
central_layout.addStretch()
central_widget.setLayout(central_layout)
self.setCentralWidget(central_widget)
QTimer.singleShot(0, self.set_window_icon)
@pyqtSlot()
def set_window_icon(self):
self.setWindowIcon(QtGui.QIcon(':/icons/app-icon'))
QtWidgets.qApp.setWindowIcon(QtGui.QIcon(':/icons/app-icon'))
@pyqtSlot(BaseMessage)
def reader_received_message(self, message):
if isinstance(message, NopMessage) or isinstance(message, ConfirmationMessage):
return
if isinstance(message, CurParameterMessage):
self.parameters_widget.update_parameter(message.parameter,
message.parameter_value)
self.list_widget.addMessage('in', message)
@pyqtSlot(BaseMessage)
def writer_sent_message(self, message):
if isinstance(message, NopMessage) or isinstance(message, ConfirmationMessage):
return
self.list_widget.addMessage('out', message)
@pyqtSlot('QString')
def serialport_selected(self, selected_port):
logging.debug('Selected port {}'.format(selected_port))
if selected_port == SerialPortSelector.EMULATOR:
self.communicator = EmulatedCommunicator()
else:
try:
self.communicator = SerialPortCommunicator(selected_port)
except SerialException as e:
QtWidgets.QMessageBox.critical(
self,
'Error!',
'Could not connect to serial port {}<br><br>The error was: {}'.format(selected_port, e.strerror)
)
QtCore.QTimer.singleShot(0, self.close)
return
self.communicator.received_message.connect(self.reader_received_message)
self.communicator.sent_message.connect(self.writer_sent_message)
self.communicator.send_message(PingMessage())
self.init_gui()
del self.serialport_selector
def init_gui(self):
self.list_widget = MessageListWidget(self)
self.pingpong_widget = PingPongWidget(self.communicator, self)
self.parameters_widget = ParametersWidget(self.communicator, self)
size_policy = self.parameters_widget.sizePolicy()
size_policy.setVerticalPolicy(QSizePolicy.Fixed)
self.parameters_widget.setSizePolicy(size_policy)
list_and_ping_layout = QHBoxLayout()
list_and_ping_layout.addWidget(self.list_widget)
list_and_ping_layout.addWidget(self.pingpong_widget)
layout = QVBoxLayout()
layout.addLayout(list_and_ping_layout)
layout.addWidget(self.parameters_widget)
widget = QWidget()
widget.setLayout(layout)
self.setCentralWidget(widget)
def closeEvent(self, event):
if self.communicator is not None:
logger = logging.getLogger()
logger.debug("Stopping communicator")
self.communicator.stop()
self.settings.setValue(self.SETTINGS_MAINWINDOW_GEOMETRY,
self.saveGeometry())
super().closeEvent(event)