Python PyQt5.QtCore.QObject() Examples

def __init__(self, duration: Optional[int] = None, parent = None) -> None:
        """Create a duration object.

        :param duration: The duration in seconds. If this is None (the default), an invalid Duration object will be created.
        :param parent: The QObject parent.
        """

        super().__init__(parent)

        self._days = -1
        self._hours = -1
        self._minutes = -1
        self._seconds = -1

        if duration is not None:
            self.setDuration(duration) 

def get_all_objects(start_obj: QObject = None) -> str:
    """Get all children of an object recursively as a string."""
    output = ['']
    widget_lines = _get_widgets()
    widget_lines = ['    ' + e for e in widget_lines]
    widget_lines.insert(0, "Qt widgets - {} objects:".format(
        len(widget_lines)))
    output += widget_lines

    if start_obj is None:
        start_obj = QApplication.instance()

    pyqt_lines = []  # type: typing.List[str]
    _get_pyqt_objects(pyqt_lines, start_obj)
    pyqt_lines = ['    ' + e for e in pyqt_lines]
    pyqt_lines.insert(0, 'Qt objects - {} objects:'.format(len(pyqt_lines)))

    output += ['']
    output += pyqt_lines
    output += objreg.dump_objects()
    return '\n'.join(output) 

def __setitem__(self, name: _IndexType, obj: typing.Any) -> None:
        """Register an object in the object registry.

        Sets a slot to remove QObjects when they are destroyed.
        """
        if name is None:
            raise TypeError("Registering '{}' with name 'None'!".format(obj))
        if obj is None:
            raise TypeError("Registering object None with name '{}'!".format(
                name))

        self._disconnect_destroyed(name)

        if isinstance(obj, QObject):
            func = functools.partial(self.on_destroyed, name)
            obj.destroyed.connect(func)
            self._partial_objs[name] = func

        super().__setitem__(name, obj) 

def test_get_all_objects(self, stubs, monkeypatch):
        # pylint: disable=unused-variable
        widgets = [self.Object('Widget 1'), self.Object('Widget 2')]
        app = stubs.FakeQApplication(all_widgets=widgets)
        monkeypatch.setattr(debug, 'QApplication', app)

        root = QObject()
        o1 = self.Object('Object 1', root)
        o2 = self.Object('Object 2', o1)  # noqa: F841
        o3 = self.Object('Object 3', root)  # noqa: F841

        expected = textwrap.dedent("""
            Qt widgets - 2 objects:
                <Widget 1>
                <Widget 2>

            Qt objects - 3 objects:
                <Object 1>
                    <Object 2>
                <Object 3>

            global object registry - 0 objects:
        """).rstrip('\n')

        assert debug.get_all_objects(start_obj=root) == expected 

def __init__(self,
                 func: typing.Callable,
                 delay_ms: int,
                 parent: QObject = None) -> None:
        """Constructor.

        Args:
            delay_ms: The time to wait before allowing another call of the
                         function. -1 disables the wrapper.
            func: The function/method to call on __call__.
            parent: The parent object.
        """
        super().__init__(parent)
        self._delay_ms = delay_ms
        self._func = func
        self._pending_call = None  # type: typing.Optional[_CallArgs]
        self._last_call_ms = None  # type: typing.Optional[int]
        self._timer = usertypes.Timer(self, 'throttle-timer')
        self._timer.setSingleShot(True) 

def __init__(self, obj: QObject,
                 stylesheet: Optional[str], update: bool) -> None:
        super().__init__()
        self._obj = obj
        self._update = update

        # We only need to hang around if we are asked to update.
        if update:
            self.setParent(self._obj)
        if stylesheet is None:
            self._stylesheet = obj.STYLESHEET  # type: str
        else:
            self._stylesheet = stylesheet

        if update:
            self._options = jinja.template_config_variables(
                self._stylesheet)  # type: Optional[FrozenSet[str]]
        else:
            self._options = None 

def __init__(self, device_id, address: str, properties: Dict[bytes, bytes], connection_type: ConnectionType = ConnectionType.NetworkConnection, parent: QObject = None) -> None:
        super().__init__(device_id = device_id, connection_type = connection_type, parent = parent)
        self._manager = None    # type: Optional[QNetworkAccessManager]
        self._timeout_time = 10  # After how many seconds of no response should a timeout occur?

        self._last_response_time = None     # type: Optional[float]
        self._last_request_time = None      # type: Optional[float]

        self._api_prefix = ""
        self._address = address
        self._properties = properties
        self._user_agent = "%s/%s " % (CuraApplication.getInstance().getApplicationName(),
                                       CuraApplication.getInstance().getVersion())

        self._onFinishedCallbacks = {}      # type: Dict[str, Callable[[QNetworkReply], None]]
        self._authentication_state = AuthState.NotAuthenticated

        # QHttpMultiPart objects need to be kept alive and not garbage collected during the
        # HTTP which uses them. We hold references to these QHttpMultiPart objects here.
        self._kept_alive_multiparts = {}        # type: Dict[QNetworkReply, QHttpMultiPart]

        self._sending_gcode = False
        self._compressing_gcode = False
        self._gcode = []                    # type: List[str]
        self._connection_state_before_timeout = None    # type: Optional[ConnectionState] 

def __init__(self, application: "CuraApplication", parent: Optional["QObject"] = None) -> None:
        super().__init__(parent)

        self.addRoleName(self.IdRole, "id")
        self.addRoleName(self.PageUrlRole, "page_url")
        self.addRoleName(self.NextPageIdRole, "next_page_id")
        self.addRoleName(self.NextPageButtonTextRole, "next_page_button_text")
        self.addRoleName(self.PreviousPageButtonTextRole, "previous_page_button_text")

        self._application = application
        self._catalog = i18nCatalog("cura")

        self._default_next_button_text = self._catalog.i18nc("@action:button", "Next")

        self._pages = []  # type: List[Dict[str, Any]]

        self._current_page_index = 0
        # Store all the previous page indices so it can go back.
        self._previous_page_indices_stack = deque()  # type: deque

        # If the welcome flow should be shown. It can show the complete flow or just the changelog depending on the
        # specific case. See initialize() for how this variable is set.
        self._should_show_welcome_flow = False 

def __init__(self, application: "CuraApplication", parent: Optional["QObject"] = None) -> None:
        super().__init__(parent = parent)
        self._application = application
        self._container_registry = self._application.getContainerRegistry()

        # Keeps track of which machines have already been processed so we don't do that again.
        self._definition_ids_with_default_actions_added = set()  # type: Set[str]

        # Dict of all known machine actions
        self._machine_actions = {}  # type: Dict[str, MachineAction]
        # Dict of all required actions by definition ID
        self._required_actions = {}  # type: Dict[str, List[MachineAction]]
        # Dict of all supported actions by definition ID
        self._supported_actions = {}  # type: Dict[str, List[MachineAction]]
        # Dict of all actions that need to be done when first added by definition ID
        self._first_start_actions = {}  # type: Dict[str, List[MachineAction]] 

def __init__(self, parent: Optional[QObject] = None) -> None:
        super().__init__(parent)

        self.addRoleName(self.NameRole, "name")
        self.addRoleName(self.QualityTypeRole, "quality_type")
        self.addRoleName(self.LayerHeightRole, "layer_height")
        self.addRoleName(self.AvailableRole, "available")
        self.addRoleName(self.IntentRole, "intent_category")

        self._intent_category = "engineering"

        self._update_timer = QTimer()
        self._update_timer.setInterval(100)
        self._update_timer.setSingleShot(True)
        self._update_timer.timeout.connect(self._update)

        machine_manager = cura.CuraApplication.CuraApplication.getInstance().getMachineManager()
        machine_manager.globalContainerChanged.connect(self._updateDelayed)
        machine_manager.extruderChanged.connect(self._updateDelayed)  # We also need to update if an extruder gets disabled
        ContainerRegistry.getInstance().containerAdded.connect(self._onChanged)
        ContainerRegistry.getInstance().containerRemoved.connect(self._onChanged)
        self._layer_height_unit = ""  # This is cached
        self._update() 

def __init__(self, device_id: str, address: str, properties: Dict[bytes, bytes], parent=None) -> None:

        super().__init__(
            device_id=device_id,
            address=address,
            properties=properties,
            connection_type=ConnectionType.NetworkConnection,
            parent=parent
        )

        self._cluster_api = None  # type: Optional[ClusterApiClient]
        self._active_exported_job = None  # type: Optional[ExportFileJob]
        self._printer_select_dialog = None  # type: Optional[QObject]

        # We don't have authentication over local networking, so we're always authenticated.
        self.setAuthenticationState(AuthState.Authenticated)
        self._setInterfaceElements()
        self._active_camera_url = QUrl()  # type: QUrl 

def __init__(self, app: CuraApplication) -> None:
        super().__init__()
        self._presented = False
        """Whether present() has been called and state is expected to be initialized"""
        self._catalog = i18nCatalog("cura")
        self._dialog = None  # type: Optional[QObject]
        self._package_manager = app.getPackageManager()  # type: PackageManager
        # Emits List[Dict[str, [Any]] containing for example
        # [{ "package_id": "BarbarianPlugin", "package_path" : "/tmp/dg345as", "accepted" : True }]
        self.licenseAnswers = Signal()

        self._current_package_idx = 0
        self._package_models = []  # type: List[Dict]
        decline_button_text = self._catalog.i18nc("@button", "Decline and remove from account")
        self._license_model = LicenseModel(decline_button_text=decline_button_text)  # type: LicenseModel
        self._page_count = 0

        self._app = app

        self._compatibility_dialog_path = "resources/qml/dialogs/ToolboxLicenseDialog.qml" 

def __init__(self, parent: Optional["QObject"] = None) -> None:
        super().__init__("MachineSettingsAction", catalog.i18nc("@action", "Machine Settings"))
        self._qml_url = "MachineSettingsAction.qml"

        from cura.CuraApplication import CuraApplication
        self._application = CuraApplication.getInstance()

        from cura.Settings.CuraContainerStack import _ContainerIndexes
        self._store_container_index = _ContainerIndexes.DefinitionChanges

        self._container_registry = ContainerRegistry.getInstance()
        self._container_registry.containerAdded.connect(self._onContainerAdded)

        # The machine settings dialog blocks auto-slicing when it's shown, and re-enables it when it's finished.
        self._backend = self._application.getBackend()
        self.onFinished.connect(self._onFinished)

        # If the g-code flavour changes between UltiGCode and another flavour, we need to update the container tree.
        self._application.globalContainerStackChanged.connect(self._updateHasMaterialsInContainerTree)

    # Which container index in a stack to store machine setting changes. 

def __init__(self, model, parent):
        QtCore.QObject.__init__(self)
        self.sigCalculateWeightMatrix.connect(
            model.calculateWeightMatrix)

        diag = QtGui.QMessageBox.information(
            parent,
            'Calculate Full Weight Matrix',
            '''<html><head/><body><p>
This will calculate the quadtree's full weight matrix
(<span style='font-family: monospace'>Covariance.weight_matrix</span>)
for this noise/covariance configuration.</p><p>
The calculation is expensive and may take several minutes.
</p></body></html>
''', buttons=(QtGui.QMessageBox.Ok | QtGui.QMessageBox.Cancel))

        if diag == QtGui.QMessageBox.Ok:
            meta = model.metaObject()
            meta.invokeMethod(
                model, 'calculateWeightMatrix',
                QtCore.Qt.QueuedConnection) 

def __init__(self, sandbox_model=None, *args, **kwargs):
        QtCore.QObject.__init__(self)

        self.model = sandbox_model
        self.log = SceneLogModel(self)
        self.sources = SourceModel(self)
        self.cursor_tracker = CursorTracker(self)

        self._log_handler = logging.Handler()
        self._log_handler.setLevel(logging.DEBUG)
        self._log_handler.emit = self.sigLogRecord.emit

        logging.root.setLevel(logging.DEBUG)
        logging.root.addHandler(self._log_handler)

        self.worker_thread = QtCore.QThread()
        self.moveToThread(self.worker_thread)
        self.worker_thread.start()

        if self.model:
            self.setModel(self.model) 

def setActivePackage(self, package: QObject) -> None:
        if self._active_package != package:
            self._active_package = package
            self.activePackageChanged.emit() 

def _createDialog(self, qml_name: str) -> Optional[QObject]:
        Logger.log("d", "Marketplace: Creating dialog [%s].", qml_name)
        plugin_path = PluginRegistry.getInstance().getPluginPath(self.getPluginId())
        if not plugin_path:
            return None
        path = os.path.join(plugin_path, "resources", "qml", qml_name)

        dialog = self._application.createQmlComponent(path, {
            "toolbox": self,
            "handler": self,
            "licenseModel": self._license_model
        })
        if not dialog:
            return None
        return dialog 

def _on_destroyed(self, name: str) -> None:
        """Remove a destroyed QObject."""
        log.destroy.debug("removed: {}".format(name))
        if not hasattr(self, 'data'):
            # This sometimes seems to happen on CI during
            # test_history.test_adding_item_during_async_read
            # and I have no idea why...
            return
        try:
            del self[name]
            del self._partial_objs[name]
        except KeyError:
            pass 

def onDepthChanged(self, value):
        if self._ui_view and not self._disable_size_callbacks:
            if len(value) > 0:
                try:
                    self._depth = float(value.replace(",", "."))
                except ValueError:  # Can happen with incomplete numbers, such as "-".
                    self._depth = 0
            else:
                self._depth = 0

            self._width = self._depth * self._aspect
            self._disable_size_callbacks = True
            self._ui_view.findChild(QObject, "Width").setProperty("text", str(self._width))
            self._disable_size_callbacks = False 

def onWidthChanged(self, value):
        if self._ui_view and not self._disable_size_callbacks:
            if len(value) > 0:
                try:
                    self._width = float(value.replace(",", "."))
                except ValueError:  # Can happen with incomplete numbers, such as "-".
                    self._width = 0
            else:
                self._width = 0

            self._depth = self._width / self._aspect
            self._disable_size_callbacks = True
            self._ui_view.findChild(QObject, "Depth").setProperty("text", str(self._depth))
            self._disable_size_callbacks = False 

def __init__(self, queue, *args, **kwargs):
        """A QObject (to be run in a QThread) which sits waiting for data to come through a Queue.Queue().

        It blocks until data is available, and one it has got something from the _logging_update_queue, it sends
        it to the "MainThread" by emitting a Qt Signal.

        Attributes:
            is_running (boolean): set to False to stop the receiver.
        """
        super().__init__(*args, **kwargs)
        self.queue = queue
        self.is_running = True 

def _actualShowConfigUI(self):
        self._disable_size_callbacks = True

        if self._ui_view is None:
            self._createConfigUI()
        self._ui_view.show()

        self._ui_view.findChild(QObject, "Width").setProperty("text", str(self._width))
        self._ui_view.findChild(QObject, "Depth").setProperty("text", str(self._depth))
        self._disable_size_callbacks = False

        self._ui_view.findChild(QObject, "Base_Height").setProperty("text", str(self.base_height))
        self._ui_view.findChild(QObject, "Peak_Height").setProperty("text", str(self.peak_height))
        self._ui_view.findChild(QObject, "Transmittance").setProperty("text", str(self.transmittance_1mm))
        self._ui_view.findChild(QObject, "Smoothing").setProperty("value", self.smoothing) 

def _createViewFromQML(self) -> Optional["QObject"]:
        """Protected helper to create a view object based on provided QML."""

        plugin_path = PluginRegistry.getInstance().getPluginPath(self.getPluginId())
        if plugin_path is None:
            Logger.log("e", "Cannot create QML view: cannot find plugin path for plugin [%s]", self.getPluginId())
            return None
        path = os.path.join(plugin_path, self._qml_url)

        from cura.CuraApplication import CuraApplication
        view = CuraApplication.getInstance().createQmlComponent(path, {"manager": self})
        return view 

def __init__(self, parent: Optional["QObject"] = None) -> None:
        super().__init__(parent = parent)

    # Checks if the given string is a valid IPv4 address. 

def __init__(self, application: "QtApplication", parent: Optional["QObject"] = None) -> None:
        super().__init__(application, parent) 

def __init__(self, parent: Optional[QObject] = None) -> None:
        super().__init__(parent)

        self._global_stack = None

        self._has_errors = True  # Result of the error check, indicating whether there are errors in the stack
        self._error_keys = set()  # type: Set[str] # A set of settings keys that have errors
        self._error_keys_in_progress = set()  # type: Set[str]  # The variable that stores the results of the currently in progress check

        self._stacks_and_keys_to_check = None  # type: Optional[deque]  # a FIFO queue of tuples (stack, key) to check for errors

        self._need_to_check = False  # Whether we need to schedule a new check or not. This flag is set when a new
                                     # error check needs to take place while there is already one running at the moment.
        self._check_in_progress = False  # Whether there is an error check running in progress at the moment.

        self._application = cura.CuraApplication.CuraApplication.getInstance()
        self._machine_manager = self._application.getMachineManager()

        self._start_time = 0.  # measure checking time

        # This timer delays the starting of error check so we can react less frequently if the user is frequently
        # changing settings.
        self._error_check_timer = QTimer(self)
        self._error_check_timer.setInterval(100)
        self._error_check_timer.setSingleShot(True)

        self._keys_to_check = set()  # type: Set[str] 

def __init__(self, parent: Optional["QObject"] = None) -> None:
        super().__init__(parent)

        container_registry = cura.CuraApplication.CuraApplication.getInstance().getContainerRegistry()
        container_registry.containerAdded.connect(self._qualityChangesListChanged)
        container_registry.containerRemoved.connect(self._qualityChangesListChanged)
        container_registry.containerMetaDataChanged.connect(self._qualityChangesListChanged) 

def __init__(self, win_id: int, parent: QObject = None) -> None:
        """Constructor."""
        super().__init__(parent)
        self._win_id = win_id
        self._context = None  # type: typing.Optional[HintContext]
        self._word_hinter = WordHinter()

        self._actions = HintActions(win_id)

        mode_manager = modeman.instance(self._win_id)
        mode_manager.left.connect(self.on_mode_left) 

def __init__(self, parent: Optional["QObject"] = None) -> None:
        super().__init__(parent)

        self.addRoleName(self.NameRole, "name")
        self.addRoleName(self.IsReadOnlyRole, "is_read_only")
        self.addRoleName(self.QualityGroupRole, "quality_group")
        self.addRoleName(self.QualityTypeRole, "quality_type")
        self.addRoleName(self.QualityChangesGroupRole, "quality_changes_group")
        self.addRoleName(self.IntentCategoryRole, "intent_category")
        self.addRoleName(self.SectionNameRole, "section_name")

        application = cura.CuraApplication.CuraApplication.getInstance()
        container_registry = application.getContainerRegistry()
        self._machine_manager = application.getMachineManager()
        self._machine_manager.activeQualityGroupChanged.connect(self._onChange)
        self._machine_manager.activeStackChanged.connect(self._onChange)
        self._machine_manager.extruderChanged.connect(self._onChange)
        self._machine_manager.globalContainerChanged.connect(self._onChange)

        self._extruder_manager = application.getExtruderManager()
        self._extruder_manager.extrudersChanged.connect(self._onChange)

        container_registry.containerAdded.connect(self._qualityChangesListChanged)
        container_registry.containerRemoved.connect(self._qualityChangesListChanged)
        container_registry.containerMetaDataChanged.connect(self._qualityChangesListChanged)

        self._update_timer = QTimer()
        self._update_timer.setInterval(100)
        self._update_timer.setSingleShot(True)
        self._update_timer.timeout.connect(self._update)

        self._onChange() 

def activePackage(self) -> Optional[QObject]:
        """The active package is the package that is currently being downloaded"""

        return self._active_package