def test_task(self): results = [] task = Task(function=QThread.currentThread) task.resultReady.connect(results.append) task.start() self.app.processEvents() self.assertSequenceEqual(results, [QThread.currentThread()]) thread = QThread() thread.start() try: task = Task(function=QThread.currentThread) task.moveToThread(thread) self.assertIsNot(task.thread(), QThread.currentThread()) self.assertIs(task.thread(), thread) results = Future() def record(value): # record the result value and the calling thread results.set_result((QThread.currentThread(), value)) task.resultReady.connect(record, Qt.DirectConnection) task.start() f = task.future() emit_thread, thread_ = results.result(3) self.assertIs(f.result(3), thread) self.assertIs(emit_thread, thread) self.assertIs(thread_, thread) finally: thread.quit() thread.wait()
def __init__(self, parent=None, signalManager=None, name="Databases update"): OWWidget.__init__(self, parent, signalManager, name, wantMainArea=False) self.searchString = "" fbox = gui.widgetBox(self.controlArea, "Filter") self.completer = TokenListCompleter( self, caseSensitivity=Qt.CaseInsensitive) self.lineEditFilter = QLineEdit(textChanged=self.SearchUpdate) self.lineEditFilter.setCompleter(self.completer) fbox.layout().addWidget(self.lineEditFilter) box = gui.widgetBox(self.controlArea, "Files") self.filesView = QTreeWidget(self) self.filesView.setHeaderLabels( ["", "Data Source", "Update", "Last Updated", "Size"]) self.filesView.setRootIsDecorated(False) self.filesView.setUniformRowHeights(True) self.filesView.setSelectionMode(QAbstractItemView.NoSelection) self.filesView.setSortingEnabled(True) self.filesView.sortItems(1, Qt.AscendingOrder) self.filesView.setItemDelegateForColumn( 0, UpdateOptionsItemDelegate(self.filesView)) self.filesView.model().layoutChanged.connect(self.SearchUpdate) box.layout().addWidget(self.filesView) box = gui.widgetBox(self.controlArea, orientation="horizontal") self.updateButton = gui.button( box, self, "Update all", callback=self.UpdateAll, tooltip="Update all updatable files", ) self.downloadButton = gui.button( box, self, "Download all", callback=self.DownloadFiltered, tooltip="Download all filtered files shown" ) self.cancelButton = gui.button( box, self, "Cancel", callback=self.Cancel, tooltip="Cancel scheduled downloads/updates." ) self.retryButton = gui.button( box, self, "Reconnect", callback=self.RetrieveFilesList ) self.retryButton.hide() gui.rubber(box) self.warning(0) box = gui.widgetBox(self.controlArea, orientation="horizontal") gui.rubber(box) self.infoLabel = QLabel() self.infoLabel.setAlignment(Qt.AlignCenter) self.controlArea.layout().addWidget(self.infoLabel) self.infoLabel.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Fixed) self.updateItems = [] self.resize(800, 600) self.progress = ProgressState(self, maximum=3) self.progress.valueChanged.connect(self._updateProgress) self.progress.rangeChanged.connect(self._updateProgress) self.executor = ThreadExecutor( threadPool=QThreadPool(maxThreadCount=2) ) task = Task(self, function=self.RetrieveFilesList) task.exceptionReady.connect(self.HandleError) task.start() self._tasks = [] self._haveProgress = False