python类QApplication()的实例源码

def main():
    app = QApplication([])
    webview = QWebView()
    loop = QEventLoop()
    webview.loadFinished.connect(loop.quit)
    webview.load(QUrl('http://example.webscraping.com/search'))
    loop.exec_()

    webview.show()
    frame = webview.page().mainFrame()
    frame.findFirstElement('#search_term').setAttribute('value', '.')
    frame.findFirstElement('#page_size option:checked').setPlainText('1000')
    frame.findFirstElement('#search').evaluateJavaScript('this.click()')

    elements = None
    while not elements:
        app.processEvents()
        elements = frame.findAllElements('#results a')
    countries = [e.toPlainText().strip() for e in elements]
    print countries

def main():
    from PySide import QtGui
    from bar_widget import BarWidget

    app = QtGui.QApplication(sys.argv)
    widget = BarWidget()
    widget.setWindowTitle('Direction Of Arrival')
    widget.show()

    doa = DOA()

    quit_event = threading.Event()
    thread = threading.Thread(target=doa.start, args=(quit_event, widget.setBars))
    thread.start()

    app.exec_()

    quit_event.set()
    thread.join()

def main():
    from PySide import QtGui
    from bar_widget import BarWidget

    app = QtGui.QApplication(sys.argv)
    widget = BarWidget()
    widget.setWindowTitle('Direction Of Arrival')
    widget.show()

    doa = DOA()

    quit_event = threading.Event()
    thread = threading.Thread(target=doa.start, args=(quit_event, widget.setBars))
    thread.start()

    app.exec_()

    quit_event.set()
    thread.join()

def quickModKeyAsk(self):
        modifiers = QtWidgets.QApplication.queryKeyboardModifiers()
        clickMode = 0 # basic mode
        if modifiers == QtCore.Qt.ControlModifier:
            clickMode = 1 # ctrl
        elif modifiers == QtCore.Qt.ShiftModifier:
            clickMode = 2 # shift
        elif modifiers == QtCore.Qt.AltModifier:
            clickMode = 3 # alt
        elif modifiers == QtCore.Qt.ControlModifier | QtCore.Qt.ShiftModifier | QtCore.Qt.AltModifier:
            clickMode = 4 # ctrl+shift+alt
        elif modifiers == QtCore.Qt.ControlModifier | QtCore.Qt.AltModifier:
            clickMode = 5 # ctrl+alt
        elif modifiers == QtCore.Qt.ControlModifier | QtCore.Qt.ShiftModifier:
            clickMode = 6 # ctrl+shift
        elif modifiers == QtCore.Qt.AltModifier | QtCore.Qt.ShiftModifier:
            clickMode = 7 # alt+shift
        return clickMode

def quickModKeyAsk(self):
        modifiers = QtWidgets.QApplication.queryKeyboardModifiers()
        clickMode = 0 # basic mode
        if modifiers == QtCore.Qt.ControlModifier:
            clickMode = 1 # ctrl
        elif modifiers == QtCore.Qt.ShiftModifier:
            clickMode = 2 # shift
        elif modifiers == QtCore.Qt.AltModifier:
            clickMode = 3 # alt
        elif modifiers == QtCore.Qt.ControlModifier | QtCore.Qt.ShiftModifier | QtCore.Qt.AltModifier:
            clickMode = 4 # ctrl+shift+alt
        elif modifiers == QtCore.Qt.ControlModifier | QtCore.Qt.AltModifier:
            clickMode = 5 # ctrl+alt
        elif modifiers == QtCore.Qt.ControlModifier | QtCore.Qt.ShiftModifier:
            clickMode = 6 # ctrl+shift
        elif modifiers == QtCore.Qt.AltModifier | QtCore.Qt.ShiftModifier:
            clickMode = 7 # alt+shift
        return clickMode

def __init__(self, filename=None):
        QtGui.QApplication.__init__(self, ['Talpa'])
        splash_img = QtGui.QPixmap(
            get_resource('talpa_splash.png'))\
            .scaled(QtCore.QSize(400, 250), QtCore.Qt.KeepAspectRatio)
        self.splash = QtGui.QSplashScreen(
            splash_img, QtCore.Qt.WindowStaysOnTopHint)
        self.updateSplashMessage('')
        self.splash.show()
        self.processEvents()

        self.talpa_win = TalpaMainWindow(filename=filename)

        self.splash.finish(self.talpa_win)

        self.aboutToQuit.connect(self.splash.deleteLater)
        self.aboutToQuit.connect(self.deleteLater)

        self.talpa_win.show()
        rc = self.exec_()
        sys.exit(rc)

def save_file(self, fileName):
        '''(file open for writing)-> boolean
        '''
        fname = QtCore.QFile(fileName)

        if not fname.open(QtCore.QFile.WriteOnly | QtCore.QFile.Text):
            QtGui.QMessageBox.warning(self, "Application",
                    "Cannot write file %s:\n%s." % (fileName, fname.errorString()))
            return False

        outf = QtCore.QTextStream(fname)
        QtGui.QApplication.setOverrideCursor(QtCore.Qt.WaitCursor)
        outf << self.ui.textEdit.toPlainText()
        QtGui.QApplication.restoreOverrideCursor()

        # self.setCurrentFile(fileName);

        # QtGui.QMessageBox.about(self,'Information',"File saved")

def launchFinPlateController(osdagMainWindow):
    set_osdaglogger()
    rawLogger = logging.getLogger("raw")
    rawLogger.setLevel(logging.INFO)
    fh = logging.FileHandler("./Connections/Shear/Finplate/fin.log", mode="w")
    formatter = logging.Formatter('''%(message)s''')
    fh.setFormatter(formatter)
    rawLogger.addHandler(fh)
    rawLogger.info('''<link rel="stylesheet" type="text/css" href="./Connections/Shear/Finplate/log.css"/>''')

    # app = QtGui.QApplication(sys.argv)
    window = MainController()
    osdagMainWindow.hide()

    window.show()
    window.closed.connect(osdagMainWindow.show)

    # sys.exit(app.exec_())

def main(params, nb_cpu, nb_gpu, use_gpu, extension):

    logger        = init_logging(params.logfile)
    logger        = logging.getLogger('circus.merging')
    file_out_suff = params.get('data', 'file_out_suff')
    extension_in  = extension
    extension_out = '-merged'

    if comm.rank == 0:
        if (extension != '') and (os.path.exists(file_out_suff + '.result%s.hdf5' %extension_out)):
            erase = query_yes_no("Export already made! Do you want to erase everything?", default=None)
            if erase:
                purge(file_out_suff, extension)
                extension_in = ''

    comm.Barrier()

    if comm.rank == 0:
        app = QApplication([])
        try:
            pylab.style.use('ggplot')
        except Exception:
            pass
    else:
        app = None

    if comm.rank == 0:
        print_and_log(['Launching the merging GUI...'], 'debug', logger)
    mygui = gui.MergeWindow(params, app, extension_in, extension_out)
    sys.exit(app.exec_())

def qWait(msec):
                start = time.time()
                QtGui.QApplication.processEvents()
                while time.time() < start + msec * 0.001:
                    QtGui.QApplication.processEvents()

def qWait(msec):
                start = time.time()
                QtGui.QApplication.processEvents()
                while time.time() < start + msec * 0.001:
                    QtGui.QApplication.processEvents()

def getPaletteInfo():
    palette = QtGui.QApplication.palette()
    # build a dict with all the colors
    result = {}
    for role in roles:
        for group in groups:
            qGrp = getattr(QtGui.QPalette, group)
            qRl = getattr(QtGui.QPalette, role)
            result['%s:%s' % (role, group)] = palette.color(qGrp, qRl).rgba()
    return result

def setPaletteFromDct(dct):
    palette = QtGui.QPalette()
    for role in roles:
        for group in groups:
            color = QtGui.QColor(dct['%s:%s' % (role, group)])
            qGrp = getattr(QtGui.QPalette, group)
            qRl = getattr(QtGui.QPalette, role)
            palette.setColor(qGrp, qRl, color)
    QtGui.QApplication.setPalette(palette)

def startup(restart=False):
    app = QtGui.QApplication.instance()
    if not app:
        app = QtGui.QApplication([])
    # app = QtGui.QApplication(sys.argv)
    # app.setStyle("plastique")
    # setPaletteFromDct(palette)
    window = lib.ui_main_classes.Ui_Main()
    env.Inst.ui_standalone = window
    window.main_layout.setSpacing(6)
    window.main_layout.setContentsMargins(9, 9, 9, 0)
    window.statusBar()
    window.show()
    sys.exit(app.exec_())

def main():
    app = QtGui.QApplication(sys.argv)
    MainWindow = Window()
    app.exec_()

def __init__(self, argparser):
        from gramps.gen.dbstate import DbState
        from guiQML.viewmanager import ViewManager
        from gramps.cli.arghandler import ArgHandler

        from PySide import QtGui
        self.app = QtGui.QApplication(sys.argv)
        dbstate = DbState()
        self.vm = ViewManager(dbstate)

        #act based on the given arguments
        ah = ArgHandler(dbstate, argparser, self.vm, self.argerrorfunc,
                        gui=True)
        ah.handle_args_gui()
        if ah.open or ah.imp_db_path:
            # if we opened or imported something, only show the interface
            self.vm.post_init_interface()
        elif config.get('paths.recent-file') and config.get('behavior.autoload'):
            # if we need to autoload last seen file, do so
            filename = config.get('paths.recent-file')
            if os.path.isdir(filename) and \
                    os.path.isfile(os.path.join(filename, "name.txt")) and \
                    ah.check_db(filename):
                self.vm.open_activate(filename)
                self.vm.post_init_interface()
            else:
                self.vm.post_init_interface()
        else:
            # open without fam tree loaded
            self.vm.post_init_interface()

        #start the QT loop
        self.app.exec_()

def ensureQapp():
    global _qt_app
    if not globals().get("_qt_app"):
        _qt_app = QtGui.QApplication([])

def retranslateUi(self, Form):
        Form.setWindowTitle(QtGui.QApplication.translate(
            "Form", "Form", None, QtGui.QApplication.UnicodeUTF8))
        self.Username.setText(QtGui.QApplication.translate(
            "Form", "Username :", None, QtGui.QApplication.UnicodeUTF8))
        self.Password.setText(QtGui.QApplication.translate(
            "Form", "Password :", None, QtGui.QApplication.UnicodeUTF8))
        self.Login.setText(QtGui.QApplication.translate(
            "Form", "Log in", None, QtGui.QApplication.UnicodeUTF8))
        self.Captslog.setText(QtGui.QApplication.translate(
            "Form", "CAPTSLOG", None, QtGui.QApplication.UnicodeUTF8))
        self.Signup.setText(QtGui.QApplication.translate(
            "Form", "Sign Up", None, QtGui.QApplication.UnicodeUTF8))

def retranslateUi(self, Form):
        Form.setWindowTitle(QtGui.QApplication.translate("Form", "Form", None, QtGui.QApplication.UnicodeUTF8))
        self.username.setText(QtGui.QApplication.translate("Form", "Username :", None, QtGui.QApplication.UnicodeUTF8))
        self.password1.setText(QtGui.QApplication.translate("Form", "Password :", None, QtGui.QApplication.UnicodeUTF8))
        self.password2.setText(QtGui.QApplication.translate("Form", "Password :", None, QtGui.QApplication.UnicodeUTF8))
        self.label.setText(QtGui.QApplication.translate("Form", "Please enter your Username and Password (at least 4 characters)", None, QtGui.QApplication.UnicodeUTF8))

def launch_gui():
    global qApp
    global bitmaskd
    global browser

    if IS_WIN:
        freeze_support()
    bitmaskd = Process(target=run_bitmaskd)
    bitmaskd.start()

    qApp = QApplication([])
    try:
        browser = BrowserWindow(None)
    except NoAuthToken as e:
        print('ERROR: ' + e.message)
        sys.exit(1)

    browser.setupSysTray()

    qApp.setQuitOnLastWindowClosed(True)
    qApp.lastWindowClosed.connect(browser.shutdown)

    signal.signal(
        signal.SIGINT,
        partial(_handle_kill, win=browser))

    # Avoid code to get stuck inside c++ loop, returning control
    # to python land.
    timer = QtCore.QTimer()
    timer.timeout.connect(lambda: None)
    timer.start(500)

    browser.show()

    sys.exit(qApp.exec_())

def __init__(self, display=True):
        self.app = QApplication([])
        QWebView.__init__(self)
        if display:
            self.show() # show the browser

def runStandalone():
    app = QtWidgets.QApplication(sys.argv)
    panel = brontes_controller.Brontes()
    panel.show()
    app.exec_()

def copyToClipboard(self):
        sortedTasks = sorted([t for t in self.taskStore.tasks if t.index >= 0], key=lambda task: task.priority)
        if self.sortButton.isChecked():
            sortedTasks.reverse()

        clipboard = QtGui.QApplication.clipboard() 
        text = '\n'.join([str(t) for t in sortedTasks])
        clipboard.setText(text)

def _closeRunningInstances(self):
        '''Check if other instances are already runnign and close them before proceding.'''

        for widget in QtGui.QApplication.allWidgets():
            name = widget.objectName()
            if type(widget) == type(self):
                p = widget.parentWidget()
                while p:
                    if p.parent() and isinstance(p.parent(), QtGui.QStackedWidget):
                        p.parent().removeWidget(p) # THIS ASSUMES NUKE'S QSTACKEDWIDGET HOLDING THIS WIDGET
                        p = None
                    else:
                        p = p.parentWidget()

def inHiero():
    '''Return True if this is run from inside of Hiero, else return False'''
    return 'Hiero' in QtGui.QApplication.applicationName()

def findAndReload():
    '''
    find MainWindow amongst all Nuke widgets and reload unless widget already has a settings file
    This is for nuke's onScriptSaveCallback for cases where the widget was first called in a deactivated state (from an unsaved nuke script)
    and is then saved while the widget is visible.
    This is also triggered via onScriptLoad to guarntee refresh when a script is loaded.
    '''
    for widget in QtGui.QApplication.allWidgets():
        if str(widget) == 'OHUfx ToDoList Widget':
            if not widget.settingsFile:
                widget.rebuildTaskWidgets()

def main():
    args = _parsed_args()

    application = QtGui.QApplication(sys.argv)
    window = Main()

    if args.input is not None:
        window.load(args.input)

    window.show()
    window.raise_()
    application.exec_()

def main():
    app = QtGui.QApplication(sys.argv)
    read_formats = ', '.join([str(format).lower() \
                              for format in QtGui.QImageReader.supportedImageFormats()])
    print('Qt4 plugin paths: ' + str(list(app.libraryPaths())))
    print('Qt4 image read support: ' + read_formats)
    print('Qt4 Libraries path: ' + str(
        QtCore.QLibraryInfo.location(QtCore.QLibraryInfo.LibrariesPath)))
    ex = MyDialog()
    app.exec_()

def main():
    app = QtGui.QApplication(sys.argv)
    FBXGui = FBXConvertGUI()
    FBXGui.show()
    app.exec_()
    sys.exit()

def main():
    app = QtGui.QApplication(sys.argv)
    OBJGui = ConversionTypeSelection()
    OBJGui.show()
    app.exec_()
    sys.exit()