Python PyQt5.QtCore.QFile.ReadOnly() Examples

def setPersepolisColorScheme(self, color_scheme):
        self.persepolis_color_scheme = color_scheme
        if color_scheme == 'Dark Fusion':
            dark_fusion = DarkFusionPalette()
            self.setPalette(dark_fusion)
            file = QFile(":/dark_style.qss")
            file.open(QFile.ReadOnly | QFile.Text)
            stream = QTextStream(file)
            self.setStyleSheet(stream.readAll())

        elif color_scheme == 'Light Fusion':
            dark_fusion = LightFusionPalette()
            self.setPalette(dark_fusion)
            file = QFile(":/light_style.qss")
            file.open(QFile.ReadOnly | QFile.Text)
            stream = QTextStream(file)
            self.setStyleSheet(stream.readAll())


# create  terminal arguments 

def set_theme(theme, prefs=None):
    if theme:
        theme = theme.replace(os.pardir, '').replace('.', '')
        theme = theme.join(theme.split()).lower()
        theme_style = resource_path('assets' + os.sep + theme + '_style.qss')
        if not os.path.exists(theme_style):
            theme_style = ':/assets/' + theme + '_style.qss'

        if prefs is not None:
            prefs.put('dwarf_ui_theme', theme)

        try:
            _app = QApplication.instance()
            style_s = QFile(theme_style)
            style_s.open(QFile.ReadOnly)
            style_content = QTextStream(style_s).readAll()
            _app.setStyleSheet(_app.styleSheet() + '\n' + style_content)
        except Exception as e:
            pass
            # err = self.dwarf.spawn(dwarf_args.package, dwarf_args.script) 

def load_stylesheet_pyqt5():
    """
    Load the stylesheet for use in a pyqt5 application.

    :param pyside: True to load the pyside rc file, False to load the PyQt rc file

    :return the stylesheet string
    """
    warnings.warn(
        "load_stylesheet_pyqt5() will be deprecated in version 3,"
        "set QtPy environment variable to specify the Qt binding and "
        "use load_stylesheet()",
        PendingDeprecationWarning
    )
    # Smart import of the rc file
    import qdarkstyle.pyqt5_style_rc

    # Load the stylesheet content from resources
    from PyQt5.QtCore import QFile, QTextStream

    f = QFile(":qdarkstyle/style.qss")
    if not f.exists():
        _logger().error("Unable to load stylesheet, file not found in "
                        "resources")
        return ""
    else:
        f.open(QFile.ReadOnly | QFile.Text)
        ts = QTextStream(f)
        stylesheet = ts.readAll()
        if platform.system().lower() == 'darwin':  # see issue #12 on github
            mac_fix = '''
            QDockWidget::title
            {
                background-color: #31363b;
                text-align: center;
                height: 12px;
            }
            '''
            stylesheet += mac_fix
        return stylesheet 

def load_stylesheet(pyside=True):
    """
    Loads the stylesheet. Takes care of importing the rc module.

    :param pyside: True to load the pyside rc file, False to load the PyQt rc file

    :return the stylesheet string
    """
    # Smart import of the rc file
    if pyside:
        import qdarkstyle.pyside_style_rc
    else:
        import qdarkstyle.pyqt_style_rc

    # Load the stylesheet content from resources
    if not pyside:
        from PyQt4.QtCore import QFile, QTextStream
    else:
        from PySide.QtCore import QFile, QTextStream

    f = QFile(":qdarkstyle/style.qss")
    if not f.exists():
        _logger().error("Unable to load stylesheet, file not found in "
                        "resources")
        return ""
    else:
        f.open(QFile.ReadOnly | QFile.Text)
        ts = QTextStream(f)
        stylesheet = ts.readAll()
        if platform.system().lower() == 'darwin':  # see issue #12 on github
            mac_fix = '''
            QDockWidget::title
            {
                background-color: #31363b;
                text-align: center;
                height: 12px;
            }
            '''
            stylesheet += mac_fix
        return stylesheet 

def load_stylesheet_pyqt5():
    """
    Loads the stylesheet for use in a pyqt5 application.

    :param pyside: True to load the pyside rc file, False to load the PyQt rc file

    :return the stylesheet string
    """
    # Smart import of the rc file
    import qdarkstyle.pyqt5_style_rc

    # Load the stylesheet content from resources
    from PyQt5.QtCore import QFile, QTextStream

    f = QFile(":qdarkstyle/style.qss")
    if not f.exists():
        _logger().error("Unable to load stylesheet, file not found in "
                        "resources")
        return ""
    else:
        f.open(QFile.ReadOnly | QFile.Text)
        ts = QTextStream(f)
        stylesheet = ts.readAll()
        if platform.system().lower() == 'darwin':  # see issue #12 on github
            mac_fix = '''
            QDockWidget::title
            {
                background-color: #31363b;
                text-align: center;
                height: 12px;
            }
            '''
            stylesheet += mac_fix
        return stylesheet 

def __init__(self, parent=None):
        super(Changelog, self).__init__(parent, Qt.Dialog | Qt.WindowCloseButtonHint)
        self.parent = parent
        self.setWindowTitle('{} changelog'.format(qApp.applicationName()))
        changelog = QFile(':/CHANGELOG')
        changelog.open(QFile.ReadOnly | QFile.Text)
        content = QTextStream(changelog).readAll()
        label = QLabel(content, self)
        label.setWordWrap(True)
        label.setTextFormat(Qt.PlainText)
        buttons = QDialogButtonBox(QDialogButtonBox.Close, self)
        buttons.rejected.connect(self.close)
        scrollarea = QScrollArea(self)
        scrollarea.setStyleSheet('QScrollArea { background:transparent; }')
        scrollarea.setWidgetResizable(True)
        scrollarea.setHorizontalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
        scrollarea.setFrameShape(QScrollArea.NoFrame)
        scrollarea.setWidget(label)
        if sys.platform in {'win32', 'darwin'}:
            scrollarea.setStyle(QStyleFactory.create('Fusion'))
        # noinspection PyUnresolvedReferences
        if parent.parent.stylename == 'fusion' or sys.platform in {'win32', 'darwin'}:
            self.setStyleSheet('''
            QScrollArea {{
                background-color: transparent;
                margin-bottom: 10px;
                border: none;
                border-right: 1px solid {};
            }}'''.format('#4D5355' if parent.theme == 'dark' else '#C0C2C3'))
        else:
            self.setStyleSheet('''
            QScrollArea {{
                background-color: transparent;
                margin-bottom: 10px;
                border: none;
            }}''')
        layout = QVBoxLayout()
        layout.addWidget(scrollarea)
        layout.addWidget(buttons)
        self.setLayout(layout)
        self.setMinimumSize(self.sizeHint()) 

def loadQSS(theme) -> None:
        filename = ':/styles/{}.qss'.format(theme)
        if QFileInfo(filename).exists():
            qssfile = QFile(filename)
            qssfile.open(QFile.ReadOnly | QFile.Text)
            content = QTextStream(qssfile).readAll()
            qApp.setStyleSheet(content) 

def __init__(self, parent):
        super(LicenseTab, self).__init__(parent)
        self.setObjectName('license')
        licensefile = QFile(':/license.html')
        licensefile.open(QFile.ReadOnly | QFile.Text)
        content = QTextStream(licensefile).readAll()
        self.setText(content)
        if sys.platform in {'win32', 'darwin'}:
            self.setStyle(QStyleFactory.create('Fusion')) 

def load_stylesheet(self, res=":/styles/styles/main.css"):
        rc = QFile(res)
        rc.open(QFile.ReadOnly)
        content = rc.readAll().data()
        self.setStyleSheet(str(content, "utf-8")) 

def _get_ui_qfile(name: str):
    """
    Returns an opened, read-only QFile for the given QtDesigner UI file name. Expects a plain name like "centralwidget".
    The file ending and resource path is added automatically.
    Raises FileNotFoundError, if the given ui file does not exist.
    :param name:
    :return:
    """
    file_path = RESOURCE_PATH_PREFIX + "/ui/{ui_file_name}.ui".format(ui_file_name=name)
    file = QFile(file_path)
    if not file.exists():
        raise FileNotFoundError("UI file not found: " + file_path)
    file.open(QFile.ReadOnly)
    return file 

def main():
    """
    Application entry point
    """
    logging.basicConfig(level=logging.DEBUG)
    # create the application and the main window
    app = QtWidgets.QApplication(sys.argv)
    #app.setStyle(QtWidgets.QStyleFactory.create("fusion"))
    window = QtWidgets.QMainWindow()

    # setup ui
    ui = example.Ui_MainWindow()
    ui.setupUi(window)
    ui.bt_delay_popup.addActions([
        ui.actionAction,
        ui.actionAction_C
    ])
    ui.bt_instant_popup.addActions([
        ui.actionAction,
        ui.actionAction_C
    ])
    ui.bt_menu_button_popup.addActions([
        ui.actionAction,
        ui.actionAction_C
    ])
    window.setWindowTitle("BreezeDark example")

    # tabify dock widgets to show bug #6
    window.tabifyDockWidget(ui.dockWidget1, ui.dockWidget2)

    # setup stylesheet
    file = QFile(":/dark.qss")
    file.open(QFile.ReadOnly | QFile.Text)
    stream = QTextStream(file)
    app.setStyleSheet(stream.readAll())

    # auto quit after 2s when testing on travis-ci
    if "--travis" in sys.argv:
        QtCore.QTimer.singleShot(2000, app.exit)

    # run
    window.show()
    app.exec_() 

def main():
    """
    Application entry point
    """
    logging.basicConfig(level=logging.DEBUG)
    # create the application and the main window
    app = QtWidgets.QApplication(sys.argv)
    #app.setStyle(QtWidgets.QStyleFactory.create("fusion"))
    window = QtWidgets.QMainWindow()

    # setup ui
    ui = example.Ui_MainWindow()
    ui.setupUi(window)
    ui.bt_delay_popup.addActions([
        ui.actionAction,
        ui.actionAction_C
    ])
    ui.bt_instant_popup.addActions([
        ui.actionAction,
        ui.actionAction_C
    ])
    ui.bt_menu_button_popup.addActions([
        ui.actionAction,
        ui.actionAction_C
    ])
    window.setWindowTitle("Breeze example")

    # tabify dock widgets to show bug #6
    window.tabifyDockWidget(ui.dockWidget1, ui.dockWidget2)

    # setup stylesheet
    file = QFile(":/light.qss")
    file.open(QFile.ReadOnly | QFile.Text)
    stream = QTextStream(file)
    app.setStyleSheet(stream.readAll())

    # auto quit after 2s when testing on travis-ci
    if "--travis" in sys.argv:
        QtCore.QTimer.singleShot(2000, app.exit)

    # run
    window.show()
    app.exec_() 

def load_stylesheet(pyside=True):
    """
    Load the stylesheet. Takes care of importing the rc module.

    :param pyside: True to load the pyside rc file, False to load the PyQt rc file

    :return the stylesheet string
    """
    warnings.warn(
        "load_stylesheet() will not receive pyside parameter in version 3. "
        "Set QtPy environment variable to specify the Qt binding insteady.",
        FutureWarning
    )
    # Smart import of the rc file
    if pyside:
        import qdarkstyle.pyside_style_rc
    else:
        import qdarkstyle.pyqt_style_rc

    # Load the stylesheet content from resources
    if not pyside:
        from PyQt4.QtCore import QFile, QTextStream
    else:
        from PySide.QtCore import QFile, QTextStream

    f = QFile(":qdarkstyle/style.qss")
    if not f.exists():
        _logger().error("Unable to load stylesheet, file not found in "
                        "resources")
        return ""
    else:
        f.open(QFile.ReadOnly | QFile.Text)
        ts = QTextStream(f)
        stylesheet = ts.readAll()
        if platform.system().lower() == 'darwin':  # see issue #12 on github
            mac_fix = '''
            QDockWidget::title
            {
                background-color: #31363b;
                text-align: center;
                height: 12px;
            }
            '''
            stylesheet += mac_fix
        return stylesheet 

def load_stylesheet_pyqt5(**kwargs):
    """
    Loads the stylesheet for use in a pyqt5 application.

    :param pyside: True to load the pyside rc file, False to load the PyQt rc file

    :return the stylesheet string
    """
    # Smart import of the rc file

    if kwargs["style"] == "style_Dark":
        import PyQt5_stylesheets.pyqt5_style_Dark_rc
    if kwargs["style"] == "style_DarkOrange":
        import PyQt5_stylesheets.pyqt5_style_DarkOrange_rc
    if kwargs["style"] == "style_Classic":
        import PyQt5_stylesheets.pyqt5_style_Classic_rc

    if kwargs["style"] == "style_navy":
        import PyQt5_stylesheets.pyqt5_style_navy_rc

    if kwargs["style"] == "style_gray":
        import PyQt5_stylesheets.pyqt5_style_gray_rc

    if kwargs["style"] == "style_blue":
        import PyQt5_stylesheets.pyqt5_style_blue_rc

    if kwargs["style"] == "style_black":
        import PyQt5_stylesheets.pyqt5_style_black_rc
    # Load the stylesheet content from resources
    from PyQt5.QtCore import QFile, QTextStream

    f = QFile(":PyQt5_stylesheets/%s.qss"%kwargs["style"])
    if not f.exists():
        f = QFile(":PyQt5_stylesheets/%s.css"%kwargs["style"])
    if not f.exists():
        _logger().error("Unable to load stylesheet, file not found in "
                        "resources")
        return ""
    else:
        f.open(QFile.ReadOnly | QFile.Text)
        ts = QTextStream(f)
        stylesheet = ts.readAll()
        if platform.system().lower() == 'darwin':  # see issue #12 on github
            mac_fix = '''
            QDockWidget::title
            {
                background-color: #31363b;
                text-align: center;
                height: 12px;
            }
            '''
            stylesheet += mac_fix
        return stylesheet 

def load_stylesheet(pyside=True):
    """
    Loads the stylesheet. Takes care of importing the rc module.

    :param pyside: True to load the pyside rc file, False to load the PyQt rc file

    :return the stylesheet string
    """
    # Smart import of the rc file
    if pyside:
        import qdarkstyle.pyside_style_rc
    else:
        import qdarkstyle.pyqt_style_rc

    # Load the stylesheet content from resources
    if not pyside:
        # PyQt 4/5 compatibility
        try:
            from PyQt4.QtCore import QFile, QTextStream
        except ImportError:
            from PyQt5.QtCore import QFile, QTextStream
    else:
        from PySide.QtCore import QFile, QTextStream

    f = QFile(":qdarkstyle/style.qss")
    if not f.exists():
        _logger().error("Unable to load stylesheet, file not found in "
                        "resources")
        return ""
    else:
        f.open(QFile.ReadOnly | QFile.Text)
        ts = QTextStream(f)
        stylesheet = ts.readAll()
        if platform.system().lower() == 'darwin':  # see issue #12 on github
            mac_fix = '''
            QDockWidget::title
            {
                background-color: #31363b;
                text-align: center;
                height: 12px;
            }
            '''
            stylesheet += mac_fix
        return stylesheet