示例#1
0
    def __init__(self, project_manager, parent=None, testing_mode=False):
        super().__init__(project_manager,
                         is_tx=False,
                         parent=parent,
                         testing_mode=testing_mode)

        self.graphics_view = self.ui.graphicsViewReceive
        self.update_interval = 1
        self.ui.stackedWidget.setCurrentWidget(self.ui.page_receive)
        self.hide_receive_ui_items()
        self.hide_send_ui_items()

        self.setWindowTitle("Spectrum analyzer")
        self.ui.btnStart.setToolTip(self.tr("Start"))
        self.ui.btnStop.setToolTip(self.tr("Stop"))

        self.scene_manager = FFTSceneManager(parent=self,
                                             graphic_view=self.graphics_view)

        self.graphics_view.setScene(self.scene_manager.scene)
        self.graphics_view.scene_manager = self.scene_manager

        self.init_device()
        self.set_bandwidth_status()

        self.gain_timer = QTimer()
        self.gain_timer.setSingleShot(True)
        self.gain_timer.timeout.connect(
            self.ui.spinBoxGain.editingFinished.emit)

        self.if_gain_timer = QTimer()
        self.if_gain_timer.setSingleShot(True)
        self.if_gain_timer.timeout.connect(
            self.ui.spinBoxIFGain.editingFinished.emit)

        self.bb_gain_timer = QTimer()
        self.bb_gain_timer.setSingleShot(True)
        self.bb_gain_timer.timeout.connect(
            self.ui.spinBoxBasebandGain.editingFinished.emit)

        self.create_connects()
示例#2
0
    def __init__(self,
                 freq,
                 samp_rate,
                 bw,
                 gain,
                 device: str,
                 parent=None,
                 testing_mode=False):
        self.is_rx = True
        super().__init__(freq,
                         samp_rate,
                         bw,
                         gain,
                         device,
                         parent=parent,
                         testing_mode=testing_mode)

        self.graphics_view = self.ui.graphicsViewReceive
        self.update_interval = 1
        self.ui.stackedWidget.setCurrentIndex(0)
        self.hide_receive_ui_items()
        self.hide_send_ui_items()

        self.setWindowTitle("Spectrum analyzer")

        self.scene_manager = FFTSceneManager(parent=self,
                                             graphic_view=self.graphics_view)

        self.graphics_view.setScene(self.scene_manager.scene)
        self.graphics_view.scene_manager = self.scene_manager

        # do not use network sdr plugin for spectrum analysis
        index = next((i for i in range(self.ui.cbDevice.count())
                      if self.ui.cbDevice.itemText(i) ==
                      NetworkSDRInterfacePlugin.NETWORK_SDR_NAME), None)
        if index is not None:
            self.ui.cbDevice.removeItem(index)

        self.init_device()

        self.create_connects()
示例#3
0
class SpectrumDialogController(SendRecvDialogController):
    def __init__(self, project_manager, parent=None, testing_mode=False):
        super().__init__(project_manager, is_tx=False, parent=parent, testing_mode=testing_mode)

        self.graphics_view = self.ui.graphicsViewReceive
        self.update_interval = 1
        self.ui.stackedWidget.setCurrentIndex(0)
        self.hide_receive_ui_items()
        self.hide_send_ui_items()

        self.setWindowTitle("Spectrum analyzer")
        self.ui.btnStart.setToolTip(self.tr("Start"))
        self.ui.btnStop.setToolTip(self.tr("Stop"))

        self.scene_manager = FFTSceneManager(parent=self, graphic_view=self.graphics_view)

        self.graphics_view.setScene(self.scene_manager.scene)
        self.graphics_view.scene_manager = self.scene_manager

        self.init_device()
        self.set_bandwidth_status()

        self.gain_timer = QTimer()
        self.gain_timer.setSingleShot(True)
        self.gain_timer.timeout.connect(self.ui.spinBoxGain.editingFinished.emit)

        self.if_gain_timer = QTimer()
        self.if_gain_timer.setSingleShot(True)
        self.if_gain_timer.timeout.connect(self.ui.spinBoxIFGain.editingFinished.emit)

        self.bb_gain_timer = QTimer()
        self.bb_gain_timer.setSingleShot(True)
        self.bb_gain_timer.timeout.connect(self.ui.spinBoxBasebandGain.editingFinished.emit)

        self.create_connects()

    def create_connects(self):
        super().create_connects()
        self.graphics_view.freq_clicked.connect(self.on_graphics_view_freq_clicked)

    def update_view(self):
        if super().update_view():
            x, y = self.device.spectrum
            if x is None or y is None:
                return
            self.scene_manager.scene.frequencies = x
            self.scene_manager.plot_data = y
            self.scene_manager.init_scene()
            self.scene_manager.show_full_scene()
            self.graphics_view.update()

    def init_device(self):
        device_name = self.ui.cbDevice.currentText()
        self.device = VirtualDevice(self.backend_handler, device_name, Mode.spectrum,
                                    device_ip="192.168.10.2", parent=self)
        self._create_device_connects()

    @pyqtSlot(float)
    def on_graphics_view_freq_clicked(self, freq: float):
        self.ui.spinBoxFreq.setValue(freq)
        self.ui.spinBoxFreq.editingFinished.emit()

    @pyqtSlot()
    def on_spinbox_frequency_editing_finished(self):
        self.device.frequency = self.ui.spinBoxFreq.value()
        self.scene_manager.scene.center_freq = self.ui.spinBoxFreq.value()
        self.scene_manager.clear_path()
        self.scene_manager.clear_peak()

    @pyqtSlot()
    def on_start_clicked(self):
        super().on_start_clicked()
        self.device.start()

    @pyqtSlot()
    def on_device_started(self):
        super().on_device_started()
        self.ui.btnClear.setEnabled(True)
        self.ui.spinBoxPort.setEnabled(False)
        self.ui.lineEditIP.setEnabled(False)
        self.ui.btnStart.setEnabled(False)

    @pyqtSlot()
    def on_clear_clicked(self):
        self.scene_manager.clear_path()
        self.scene_manager.clear_peak()

    @pyqtSlot(int)
    def on_slider_gain_value_changed(self, value: int):
        super().on_slider_gain_value_changed(value)
        self.gain_timer.start(250)

    @pyqtSlot(int)
    def on_slider_if_gain_value_changed(self, value: int):
        super().on_slider_if_gain_value_changed(value)
        self.if_gain_timer.start(250)

    @pyqtSlot(int)
    def on_slider_baseband_gain_value_changed(self, value: int):
        super().on_slider_baseband_gain_value_changed(value)
        self.bb_gain_timer.start(250)
示例#4
0
class SpectrumDialogController(SendRecvDialogController):
    def __init__(self,
                 freq,
                 samp_rate,
                 bw,
                 gain,
                 device: str,
                 parent=None,
                 testing_mode=False):
        self.is_rx = True
        super().__init__(freq,
                         samp_rate,
                         bw,
                         gain,
                         device,
                         parent=parent,
                         testing_mode=testing_mode)

        self.graphics_view = self.ui.graphicsViewReceive
        self.update_interval = 1
        self.ui.stackedWidget.setCurrentIndex(0)
        self.hide_receive_ui_items()
        self.hide_send_ui_items()

        self.setWindowTitle("Spectrum analyzer")
        self.ui.btnStart.setToolTip(self.tr("Start"))
        self.ui.btnStop.setToolTip(self.tr("Stop"))

        self.scene_manager = FFTSceneManager(parent=self,
                                             graphic_view=self.graphics_view)

        self.graphics_view.setScene(self.scene_manager.scene)
        self.graphics_view.scene_manager = self.scene_manager

        # do not use network sdr plugin for spectrum analysis
        index = next((i for i in range(self.ui.cbDevice.count())
                      if self.ui.cbDevice.itemText(i) ==
                      NetworkSDRInterfacePlugin.NETWORK_SDR_NAME), None)
        if index is not None:
            self.ui.cbDevice.removeItem(index)

        self.init_device()
        self.set_bandwidth_status()

        self.create_connects()

    def create_connects(self):
        super().create_connects()
        self.graphics_view.freq_clicked.connect(
            self.on_graphics_view_freq_clicked)

    def update_view(self):
        if super().update_view():
            x, y = self.device.spectrum
            if x is None or y is None:
                return
            self.scene_manager.scene.frequencies = x
            self.scene_manager.plot_data = y
            self.scene_manager.init_scene()
            self.scene_manager.show_full_scene()
            self.graphics_view.update()

    def init_device(self):
        device_name = self.ui.cbDevice.currentText()
        self.device = VirtualDevice(self.backend_handler,
                                    device_name,
                                    Mode.spectrum,
                                    bw=1e6,
                                    freq=433.92e6,
                                    gain=40,
                                    samp_rate=1e6,
                                    device_ip="192.168.10.2",
                                    parent=self)
        self._create_device_connects()

    @pyqtSlot(float)
    def on_graphics_view_freq_clicked(self, freq: float):
        self.ui.spinBoxFreq.setValue(freq)
        self.ui.spinBoxFreq.editingFinished.emit()

    @pyqtSlot()
    def on_freq_changed(self):
        self.device.frequency = self.ui.spinBoxFreq.value()
        self.scene_manager.scene.center_freq = self.ui.spinBoxFreq.value()
        self.scene_manager.clear_path()
        self.scene_manager.clear_peak()

    @pyqtSlot()
    def on_start_clicked(self):
        super().on_start_clicked()
        self.device.start()

    @pyqtSlot()
    def on_device_started(self):
        super().on_device_started()
        self.ui.btnClear.setEnabled(False)
        self.ui.btnStart.setEnabled(False)

    @pyqtSlot()
    def on_clear_clicked(self):
        self.scene_manager.clear_path()
        self.scene_manager.clear_peak()
    def __init__(self, freq, samp_rate, bw, gain, device: str, mode: Mode, modulated_data=None, parent=None):
        super().__init__(parent)
        self.ui = Ui_SendRecvDialog()
        self.ui.setupUi(self)
        self.setAttribute(Qt.WA_DeleteOnClose)

        self.graphics_view = self.ui.graphicsViewSend if mode == Mode.send else self.ui.graphicsViewReceive

        self.backend_handler = BackendHandler()
        if mode == Mode.spectrum:
            self.update_interval = 1
        else:
            self.update_interval = 50

        if mode == Mode.send and modulated_data is None:
            raise ValueError("I need modulated data to send!")

        if mode == Mode.receive or mode == Mode.spectrum:
            self.ui.spinBoxNRepeat.hide()
            self.ui.labelNRepeat.hide()
            self.ui.lblCurrentRepeatValue.hide()
            self.ui.lblRepeatText.hide()
            self.ui.lSamplesSentText.hide()
            self.ui.progressBar.hide()
            self.ui.stackedWidget.setCurrentIndex(0)
        else:
            self.ui.stackedWidget.setCurrentIndex(1)

        if mode == Mode.send or mode == Mode.spectrum:
            self.ui.lSamplesCaptured.hide()
            self.ui.lSamplesCapturedText.hide()
            self.ui.lSignalSize.hide()
            self.ui.lSignalSizeText.hide()
            self.ui.lTime.hide()
            self.ui.lTimeText.hide()
            self.ui.btnSave.hide()

        if mode == Mode.spectrum:
            self.setWindowTitle("Spectrum analyzer")

        if mode == Mode.send:
            self.ui.btnStart.setIcon(QIcon.fromTheme("media-playback-start"))
            self.setWindowTitle("Send signal")
            self.ui.btnStart.setToolTip("Send data")
            self.ui.btnStop.setToolTip("Stop sending")
            self.ui.progressBar.setMaximum(len(modulated_data))

        self.device_is_sending = False

        self.ui.btnStop.setEnabled(False)
        self.ui.btnClear.setEnabled(False)
        self.ui.btnSave.setEnabled(False)
        self.start = 0
        self.already_saved = True
        self.bw_sr_are_locked = constants.SETTINGS.value("lock_bandwidth_sample_rate", True, bool)

        self.ui.spinBoxFreq.setValue(freq)
        self.ui.spinBoxSampleRate.setValue(samp_rate)
        self.ui.spinBoxBandwidth.setValue(bw)
        self.ui.spinBoxGain.setValue(gain)
        self.ui.spinBoxNRepeat.setValue(constants.SETTINGS.value('num_sending_repeats', 1, type=int))

        self.ui.cbDevice.clear()
        items = []
        for device_name in self.backend_handler.DEVICE_NAMES:
            dev = self.backend_handler.device_backends[device_name.lower()]
            if mode == Mode.send and dev.is_enabled and dev.supports_tx:
                items.append(device_name)
            elif mode in (Mode.receive, Mode.spectrum) and dev.is_enabled and dev.supports_rx:
                items.append(device_name)

        if mode == Mode.send and PluginManager().is_plugin_enabled("NetworkSDRInterface"):
            items.append(NetworkSDRInterfacePlugin.NETWORK_SDR_NAME)

        self.ui.cbDevice.addItems(items)
        if device in items:
            self.ui.cbDevice.setCurrentIndex(items.index(device))

        dev_name = self.ui.cbDevice.currentText()
        nrep = self.ui.spinBoxNRepeat.value()
        self.device = VirtualDevice(self.backend_handler, dev_name, mode, bw, freq, gain, samp_rate,
                                    samples_to_send=modulated_data,
                                    device_ip=self.ui.lineEditIP.text(), sending_repeats=nrep, parent=self)
        self.ui.lineEditIP.setVisible(dev_name == "USRP")
        self.ui.labelIP.setVisible(dev_name == "USRP")

        self.recorded_files = []

        self.timer = QTimer(self)

        if mode == Mode.receive:
            self.scene_manager = LiveSceneManager(np.array([]), parent=self)  # set really in on_device_started
        elif mode == Mode.send:
            signal = Signal.from_samples(modulated_data, "Modulated Preview", samp_rate)
            self.scene_manager = SignalSceneManager(signal, parent=self)
            self.send_indicator = self.scene_manager.scene.addRect(0, -2, 0, 4,
                                                                   QPen(QColor(Qt.transparent), Qt.FlatCap),
                                                                   QBrush(constants.SEND_INDICATOR_COLOR))
            self.send_indicator.stackBefore(self.scene_manager.scene.selection_area)
            self.scene_manager.init_scene()
            self.graphics_view.set_signal(signal)
            self.graphics_view.sample_rate = samp_rate
        else:
            self.scene_manager = FFTSceneManager(parent=self, graphic_view=self.graphics_view)

        self.graphics_view.setScene(self.scene_manager.scene)
        self.graphics_view.scene_manager = self.scene_manager

        ipRange = "(?:[0-1]?[0-9]?[0-9]|2[0-4][0-9]|25[0-5])"
        ipRegex = QRegExp("^" + ipRange
                          + "\\." + ipRange
                          + "\\." + ipRange
                          + "\\." + ipRange + "$")
        self.ui.lineEditIP.setValidator(QRegExpValidator(ipRegex))
        self.create_connects()

        self.ui.btnLockBWSR.setChecked(self.bw_sr_are_locked)
        self.on_btn_lock_bw_sr_clicked()
示例#6
0
    def __init__(self,
                 freq,
                 samp_rate,
                 bw,
                 gain,
                 device,
                 mode: Mode,
                 modulated_data=None,
                 parent=None):
        super().__init__(parent)
        self.ui = Ui_SendRecvDialog()
        self.ui.setupUi(self)
        self.setAttribute(Qt.WA_DeleteOnClose)

        self.update_interval = 125

        self.mode = mode  # recv, send, or spectrum
        if self.mode == Mode.send and modulated_data is None:
            raise ValueError("I need modulated data to send!")

        if self.mode == Mode.receive or self.mode == Mode.spectrum:
            self.ui.spinBoxNRepeat.hide()
            self.ui.labelNRepeat.hide()
            self.ui.lblCurrentRepeatValue.hide()
            self.ui.lblRepeatText.hide()
            self.ui.lSamplesSentText.hide()
            self.ui.progressBar.hide()

        if self.mode == Mode.send or self.mode == Mode.spectrum:
            self.ui.lSamplesCaptured.hide()
            self.ui.lSamplesCapturedText.hide()
            self.ui.lSignalSize.hide()
            self.ui.lSignalSizeText.hide()
            self.ui.lTime.hide()
            self.ui.lTimeText.hide()
            self.ui.btnSave.hide()

        if self.mode == Mode.spectrum:
            self.ui.btnClear.hide()
            self.setWindowTitle("Spectrum analyzer")

        if self.mode == Mode.send:
            self.ui.btnStart.setIcon(QIcon.fromTheme("media-playback-start"))
            self.setWindowTitle("Send signal")
            self.ui.btnStart.setToolTip("Send data")

        self.ui.btnStop.setEnabled(False)
        self.ui.btnClear.setEnabled(False)
        self.ui.btnSave.setEnabled(False)
        self.start = 0
        self.already_saved = True

        self.ui.spinBoxFreq.setValue(freq)
        self.ui.spinBoxSampleRate.setValue(samp_rate)
        self.ui.spinBoxBandwidth.setValue(bw)
        self.ui.spinBoxGain.setValue(gain)
        self.ui.spinBoxNRepeat.setValue(
            constants.SETTINGS.value('num_sending_repeats', type=int))

        if self.mode == Mode.receive:
            self.device_thread = ReceiverThread(samp_rate,
                                                freq,
                                                gain,
                                                bw,
                                                parent=self)
        elif self.mode == Mode.send:
            self.device_thread = SenderThread(samp_rate,
                                              freq,
                                              gain,
                                              bw,
                                              parent=self)
            self.device_thread.data = modulated_data
            self.device_thread.samples_per_transmission = len(modulated_data)

            self.ui.progressBar.setMaximum(len(modulated_data))
        elif self.mode == Mode.spectrum:
            self.device_thread = SpectrumThread(samp_rate,
                                                freq,
                                                gain,
                                                bw,
                                                parent=self)

        self.device_thread.usrp_ip = self.ui.lineEditIP.text()

        self.ui.cbDevice.clear()
        items = []
        if constants.SETTINGS.value('usrp_available', type=bool):
            items.append("USRP")
        if constants.SETTINGS.value('hackrf_available', type=bool):
            items.append("HackRF")
        self.ui.cbDevice.addItems(items)
        if device in items:
            self.ui.cbDevice.setCurrentIndex(items.index(device))

        self.on_selected_device_changed()

        self.recorded_files = []

        self.timer = QTimer(self)

        if self.mode == Mode.receive or self.mode == Mode.send:
            self.scene_creator = LiveSceneManager(self.device_thread.data.real,
                                                  parent=self)
        else:
            self.scene_creator = FFTSceneManager(
                parent=self, graphic_view=self.ui.graphicsView)

        self.ui.graphicsView.setScene(self.scene_creator.scene)

        ipRange = "(?:[0-1]?[0-9]?[0-9]|2[0-4][0-9]|25[0-5])"
        ipRegex = QRegExp("^" + ipRange + "\\." + ipRange + "\\." + ipRange +
                          "\\." + ipRange + "$")
        self.ui.lineEditIP.setValidator(QRegExpValidator(ipRegex))
        self.create_connects()
示例#7
0
class SendRecvDialogController(QDialog):
    files_recorded = pyqtSignal(list)
    recording_parameters = pyqtSignal(str, str, str, str, str)

    def __init__(self,
                 freq,
                 samp_rate,
                 bw,
                 gain,
                 device,
                 mode: Mode,
                 modulated_data=None,
                 parent=None):
        super().__init__(parent)
        self.ui = Ui_SendRecvDialog()
        self.ui.setupUi(self)
        self.setAttribute(Qt.WA_DeleteOnClose)

        self.update_interval = 125

        self.mode = mode  # recv, send, or spectrum
        if self.mode == Mode.send and modulated_data is None:
            raise ValueError("I need modulated data to send!")

        if self.mode == Mode.receive or self.mode == Mode.spectrum:
            self.ui.spinBoxNRepeat.hide()
            self.ui.labelNRepeat.hide()
            self.ui.lblCurrentRepeatValue.hide()
            self.ui.lblRepeatText.hide()
            self.ui.lSamplesSentText.hide()
            self.ui.progressBar.hide()

        if self.mode == Mode.send or self.mode == Mode.spectrum:
            self.ui.lSamplesCaptured.hide()
            self.ui.lSamplesCapturedText.hide()
            self.ui.lSignalSize.hide()
            self.ui.lSignalSizeText.hide()
            self.ui.lTime.hide()
            self.ui.lTimeText.hide()
            self.ui.btnSave.hide()

        if self.mode == Mode.spectrum:
            self.ui.btnClear.hide()
            self.setWindowTitle("Spectrum analyzer")

        if self.mode == Mode.send:
            self.ui.btnStart.setIcon(QIcon.fromTheme("media-playback-start"))
            self.setWindowTitle("Send signal")
            self.ui.btnStart.setToolTip("Send data")

        self.ui.btnStop.setEnabled(False)
        self.ui.btnClear.setEnabled(False)
        self.ui.btnSave.setEnabled(False)
        self.start = 0
        self.already_saved = True

        self.ui.spinBoxFreq.setValue(freq)
        self.ui.spinBoxSampleRate.setValue(samp_rate)
        self.ui.spinBoxBandwidth.setValue(bw)
        self.ui.spinBoxGain.setValue(gain)
        self.ui.spinBoxNRepeat.setValue(
            constants.SETTINGS.value('num_sending_repeats', type=int))

        if self.mode == Mode.receive:
            self.device_thread = ReceiverThread(samp_rate,
                                                freq,
                                                gain,
                                                bw,
                                                parent=self)
        elif self.mode == Mode.send:
            self.device_thread = SenderThread(samp_rate,
                                              freq,
                                              gain,
                                              bw,
                                              parent=self)
            self.device_thread.data = modulated_data
            self.device_thread.samples_per_transmission = len(modulated_data)

            self.ui.progressBar.setMaximum(len(modulated_data))
        elif self.mode == Mode.spectrum:
            self.device_thread = SpectrumThread(samp_rate,
                                                freq,
                                                gain,
                                                bw,
                                                parent=self)

        self.device_thread.usrp_ip = self.ui.lineEditIP.text()

        self.ui.cbDevice.clear()
        items = []
        if constants.SETTINGS.value('usrp_available', type=bool):
            items.append("USRP")
        if constants.SETTINGS.value('hackrf_available', type=bool):
            items.append("HackRF")
        self.ui.cbDevice.addItems(items)
        if device in items:
            self.ui.cbDevice.setCurrentIndex(items.index(device))

        self.on_selected_device_changed()

        self.recorded_files = []

        self.timer = QTimer(self)

        if self.mode == Mode.receive or self.mode == Mode.send:
            self.scene_creator = LiveSceneManager(self.device_thread.data.real,
                                                  parent=self)
        else:
            self.scene_creator = FFTSceneManager(
                parent=self, graphic_view=self.ui.graphicsView)

        self.ui.graphicsView.setScene(self.scene_creator.scene)

        ipRange = "(?:[0-1]?[0-9]?[0-9]|2[0-4][0-9]|25[0-5])"
        ipRegex = QRegExp("^" + ipRange + "\\." + ipRange + "\\." + ipRange +
                          "\\." + ipRange + "$")
        self.ui.lineEditIP.setValidator(QRegExpValidator(ipRegex))
        self.create_connects()

    def create_connects(self):
        self.ui.btnStart.clicked.connect(self.on_start_clicked)
        self.ui.btnStop.clicked.connect(self.on_stop_clicked)
        self.ui.btnClear.clicked.connect(self.on_clear_clicked)
        self.ui.btnSave.clicked.connect(self.on_save_clicked)
        self.device_thread.stopped.connect(self.on_device_thread_stopped)
        self.device_thread.started.connect(self.on_device_thread_started)
        self.device_thread.sender_needs_restart.connect(
            self.__restart_device_thread)
        self.timer.timeout.connect(self.update_view)
        self.ui.spinBoxSampleRate.editingFinished.connect(
            self.on_sample_rate_changed)
        self.ui.spinBoxGain.editingFinished.connect(self.on_gain_changed)
        self.ui.spinBoxFreq.editingFinished.connect(self.on_freq_changed)
        self.ui.spinBoxBandwidth.editingFinished.connect(self.on_bw_changed)
        self.ui.lineEditIP.editingFinished.connect(self.on_usrp_ip_changed)
        self.ui.cbDevice.currentIndexChanged.connect(
            self.on_selected_device_changed)
        self.ui.spinBoxNRepeat.editingFinished.connect(self.on_nrepeat_changed)
        self.ui.sliderYscale.valueChanged.connect(
            self.on_slideyscale_value_changed)

        self.ui.graphicsView.zoomed.connect(
            self.handle_signal_zoomed_or_scrolled)
        self.ui.graphicsView.horizontalScrollBar().valueChanged.connect(
            self.handle_signal_zoomed_or_scrolled)

    @property
    def has_empty_device_list(self):
        return self.ui.cbDevice.count() == 0

    @pyqtSlot()
    def on_sample_rate_changed(self):
        self.device_thread.sample_rate = self.ui.spinBoxSampleRate.value()

    @pyqtSlot()
    def on_freq_changed(self):
        self.device_thread.freq = self.ui.spinBoxFreq.value()
        if self.mode == Mode.spectrum:
            self.scene_creator.scene.center_freq = self.ui.spinBoxFreq.value()

    @pyqtSlot()
    def on_bw_changed(self):
        self.device_thread.bandwidth = self.ui.spinBoxBandwidth.value()

    @pyqtSlot()
    def on_usrp_ip_changed(self):
        self.device_thread.usrp_ip = self.ui.lineEditIP.text()

    @pyqtSlot()
    def on_gain_changed(self):
        self.device_thread.gain = self.ui.spinBoxGain.value()

    @pyqtSlot()
    def on_selected_device_changed(self):
        dev = self.ui.cbDevice.currentText()
        self.device_thread.device = dev
        self.ui.lineEditIP.setVisible(dev == "USRP")
        self.ui.labelIP.setVisible(dev == "USRP")

    @pyqtSlot()
    def on_start_clicked(self):
        if self.mode == Mode.send and self.ui.progressBar.value(
        ) >= self.ui.progressBar.maximum() - 1:
            self.on_clear_clicked()

        self.ui.spinBoxFreq.editingFinished.emit()
        self.ui.lineEditIP.editingFinished.emit()
        self.ui.spinBoxBandwidth.editingFinished.emit()
        self.ui.spinBoxSampleRate.editingFinished.emit()
        self.ui.spinBoxNRepeat.editingFinished.emit()

        self.device_thread.setTerminationEnabled(True)
        self.device_thread.terminate()
        time.sleep(0.1)

        self.device_thread.start()

    @pyqtSlot()
    def on_nrepeat_changed(self):
        if not self.ui.spinBoxNRepeat.isVisible():
            return

        if self.device_thread.max_repeats != self.ui.spinBoxNRepeat.value():
            self.device_thread.max_repeats = self.ui.spinBoxNRepeat.value()
            self.device_thread.current_iteration = 0
        self.device_thread.repeat_endless = self.ui.spinBoxNRepeat.value() == 0

    @pyqtSlot()
    def on_stop_clicked(self):
        self.device_thread.stop("Stopped receiving due to user interaction")

    @pyqtSlot()
    def on_device_thread_stopped(self):
        self.ui.graphicsView.capturing_data = False
        self.ui.btnStart.setEnabled(True)
        self.ui.btnStop.setEnabled(False)
        self.ui.btnClear.setEnabled(True)
        self.ui.btnSave.setEnabled(self.device_thread.current_index > 0)
        self.ui.spinBoxSampleRate.setEnabled(True)
        self.ui.spinBoxFreq.setEnabled(True)
        self.ui.lineEditIP.setEnabled(True)
        self.ui.spinBoxBandwidth.setEnabled(True)
        self.ui.spinBoxGain.setEnabled(True)
        self.ui.cbDevice.setEnabled(True)
        self.ui.spinBoxNRepeat.setEnabled(True)
        self.timer.stop()
        self.scene_creator.set_text("")
        self.update_view()

    @pyqtSlot()
    def on_device_thread_started(self):
        self.ui.txtEditErrors.clear()
        self.scene_creator.set_text("Waiting for device..")
        self.ui.graphicsView.capturing_data = True
        self.ui.btnSave.setEnabled(False)
        self.ui.btnStart.setEnabled(False)
        self.ui.btnClear.setEnabled(False)
        self.ui.spinBoxNRepeat.setEnabled(False)
        self.ui.btnStop.setEnabled(True)

        if self.mode != Mode.spectrum:
            self.ui.spinBoxSampleRate.setDisabled(True)
            self.ui.spinBoxFreq.setDisabled(True)
            self.ui.spinBoxGain.setDisabled(True)
            self.ui.spinBoxBandwidth.setDisabled(True)

        self.ui.lineEditIP.setDisabled(True)
        self.ui.cbDevice.setDisabled(True)
        self.timer.start(self.update_interval)
        self.already_saved = False

    def update_view(self):
        txt = self.ui.txtEditErrors.toPlainText()
        new_errors = self.device_thread.read_errors()

        if "No devices found for" in new_errors:
            self.device_thread.stop("Could not establish connection to USRP")
            Errors.usrp_ip_not_found()

            self.on_clear_clicked()

        elif "FATAL: No supported devices found" in new_errors or \
                        "HACKRF_ERROR_NOT_FOUND" in new_errors or \
                        "HACKRF_ERROR_LIBUSB" in new_errors:
            self.device_thread.stop("Could not establish connection to HackRF")
            Errors.hackrf_not_found()
            self.on_clear_clicked()

        elif "No module named gnuradio" in new_errors:
            self.device_thread.stop("Did not find gnuradio.")
            Errors.gnuradio_not_installed()
            self.on_clear_clicked()

        elif "Address already in use" in new_errors:
            self.__restart_device_thread()

        if len(new_errors) > 1:
            self.ui.txtEditErrors.setPlainText(txt + new_errors)

        self.ui.progressBar.setValue(self.device_thread.current_index)

        self.ui.lSamplesCaptured.setText("{0:n}".format(
            self.device_thread.current_index))
        self.ui.lSignalSize.setText("{0:n}".format(
            (8 * self.device_thread.current_index) / (1024**2)))
        self.ui.lTime.setText(
            locale.format_string(
                "%.2f", self.device_thread.current_index /
                self.device_thread.sample_rate))
        if self.device_thread.current_iteration is not None:
            self.ui.lblCurrentRepeatValue.setText(
                str(self.device_thread.current_iteration + 1))
        else:
            self.ui.lblCurrentRepeatValue.setText("Done")

        if self.device_thread.current_index == 0:
            return

        if self.mode == Mode.send or self.mode == Mode.receive:
            self.ui.graphicsView.horizontalScrollBar().blockSignals(True)
            self.scene_creator.end = self.device_thread.current_index
        elif self.mode == Mode.spectrum:
            x, y = self.device_thread.x, self.device_thread.y
            self.scene_creator.scene.frequencies = x
            self.scene_creator.plot_data = y
            if x is None or y is None:
                return

        self.scene_creator.init_scene()
        self.scene_creator.show_full_scene()
        self.ui.graphicsView.update()

    def __restart_device_thread(self):
        self.device_thread.stop("Restarting thread with new port")
        QApplication.processEvents()

        self.device_thread.port = random.randint(1024, 65536)
        print("Retry with port " + str(self.device_thread.port))
        self.device_thread.setTerminationEnabled(True)
        self.device_thread.terminate()
        time.sleep(1)

        self.device_thread.start()
        QApplication.processEvents()

    @pyqtSlot()
    def on_clear_clicked(self):
        if self.mode != Mode.spectrum:
            self.ui.txtEditErrors.clear()
            self.device_thread.clear_data()
            self.scene_creator.clear_path()
            self.device_thread.current_iteration = 0
            self.ui.graphicsView.repaint()
            self.ui.lSamplesCaptured.setText("0")
            self.ui.lSignalSize.setText("0")
            self.ui.lTime.setText("0")
            self.ui.lblCurrentRepeatValue.setText("-")
            self.scene_creator.set_text("")
            self.ui.progressBar.setValue(0)
            self.ui.btnClear.setEnabled(False)
            self.ui.btnSave.setEnabled(False)

    def on_save_clicked(self):
        data = self.device_thread.data[:self.device_thread.current_index]
        filename = FileOperator.save_data_dialog("recorded", data, parent=self)
        self.already_saved = True
        if filename is not None and filename not in self.recorded_files:
            self.recorded_files.append(filename)

    def closeEvent(self, QCloseEvent):
        self.device_thread.stop("Dialog closed. Killing recording process.")
        if self.mode == Mode.receive and not self.already_saved and self.device_thread.current_index > 0:
            reply = QMessageBox.question(
                self, self.tr("Save data?"),
                self.tr(
                    "Do you want to save the data you have captured so far?"),
                QMessageBox.Yes | QMessageBox.No | QMessageBox.Abort)
            if reply == QMessageBox.Yes:
                self.on_save_clicked()
            elif reply == QMessageBox.Abort:
                QCloseEvent.ignore()
                return

        time.sleep(0.1)
        if self.mode == Mode.send:
            self.device_thread.socket.close()

        self.device_thread.data = None

        self.files_recorded.emit(self.recorded_files)
        self.recording_parameters.emit(str(self.device_thread.freq),
                                       str(self.device_thread.sample_rate),
                                       str(self.device_thread.bandwidth),
                                       str(self.device_thread.gain),
                                       str(self.device_thread.device))
        self.device_thread.quit()
        self.device_thread.deleteLater()

        QCloseEvent.accept()

    def handle_signal_zoomed_or_scrolled(self):
        if not self.ui.graphicsView.capturing_data:
            x1 = self.ui.graphicsView.view_rect().x()
            x2 = x1 + self.ui.graphicsView.view_rect().width()
            self.scene_creator.show_scene_section(x1, x2)

    @pyqtSlot(int)
    def on_slideyscale_value_changed(self, new_value: int):
        # Scale Up = Top Half, Scale Down = Lower Half
        middle = int((self.ui.sliderYscale.maximum() + 1 -
                      self.ui.sliderYscale.minimum()) / 2)
        scale_up = new_value >= middle
        current_factor = self.ui.graphicsView.sceneRect().height(
        ) / self.ui.graphicsView.view_rect().height()
        scale_factor = (
            new_value + 1 - middle
        ) / current_factor if scale_up else current_factor / new_value
        if scale_factor > 0:
            self.ui.graphicsView.scale(1, scale_factor)