Python QtCore.Signal方法代碼示例

# 需要導入模塊: from PyQt4 import QtCore [as 別名]
# 或者: from PyQt4.QtCore import Signal [as 別名]
def _setup_pyqt5():
    global QtCore, QtGui, QtWidgets, __version__, is_pyqt5, _getSaveFileName

    if QT_API == QT_API_PYQT5:
        from PyQt5 import QtCore, QtGui, QtWidgets
        __version__ = QtCore.PYQT_VERSION_STR
        QtCore.Signal = QtCore.pyqtSignal
        QtCore.Slot = QtCore.pyqtSlot
        QtCore.Property = QtCore.pyqtProperty
    elif QT_API == QT_API_PYSIDE2:
        from PySide2 import QtCore, QtGui, QtWidgets, __version__
    else:
        raise ValueError("Unexpected value for the 'backend.qt5' rcparam")
    _getSaveFileName = QtWidgets.QFileDialog.getSaveFileName

    def is_pyqt5():
        return True 

# 需要導入模塊: from PyQt4 import QtCore [as 別名]
# 或者: from PyQt4.QtCore import Signal [as 別名]
def import_pyqt5():
    """
    Import PyQt5

    ImportErrors rasied within this function are non-recoverable
    """

    from PyQt5 import QtCore, QtSvg, QtWidgets, QtGui, QtPrintSupport

    import sip

    # Alias PyQt-specific functions for PySide compatibility.
    QtCore.Signal = QtCore.pyqtSignal
    QtCore.Slot = QtCore.pyqtSlot

    # Join QtGui and QtWidgets for Qt4 compatibility.
    QtGuiCompat = types.ModuleType('QtGuiCompat')
    QtGuiCompat.__dict__.update(QtGui.__dict__)
    QtGuiCompat.__dict__.update(QtWidgets.__dict__)
    QtGuiCompat.__dict__.update(QtPrintSupport.__dict__)

    api = QT_API_PYQT5
    return QtCore, QtGuiCompat, QtSvg, api 

# 需要導入模塊: from PyQt4 import QtCore [as 別名]
# 或者: from PyQt4.QtCore import Signal [as 別名]
def import_pyqt4(version=2):
    """
    Import PyQt4

    Parameters
    ----------
    version : 1, 2, or None
      Which QString/QVariant API to use. Set to None to use the system
      default

    ImportErrors rasied within this function are non-recoverable
    """
    # The new-style string API (version=2) automatically
    # converts QStrings to Unicode Python strings. Also, automatically unpacks
    # QVariants to their underlying objects.
    import sip

    if version is not None:
        sip.setapi('QString', version)
        sip.setapi('QVariant', version)

    from PyQt4 import QtGui, QtCore, QtSvg

    if not check_version(QtCore.PYQT_VERSION_STR, '4.7'):
        raise ImportError("IPython requires PyQt4 >= 4.7, found %s" %
                          QtCore.PYQT_VERSION_STR)

    # Alias PyQt-specific functions for PySide compatibility.
    QtCore.Signal = QtCore.pyqtSignal
    QtCore.Slot = QtCore.pyqtSlot

    # query for the API version (in case version == None)
    version = sip.getapi('QString')
    api = QT_API_PYQTv1 if version == 1 else QT_API_PYQT
    return QtCore, QtGui, QtSvg, api 

# 需要導入模塊: from PyQt4 import QtCore [as 別名]
# 或者: from PyQt4.QtCore import Signal [as 別名]
def import_pyqt4(version=2):
    """
    Import PyQt4

    Parameters
    ----------
    version : 1, 2, or None
      Which QString/QVariant API to use. Set to None to use the system
      default

    ImportErrors raised within this function are non-recoverable
    """
    # The new-style string API (version=2) automatically
    # converts QStrings to Unicode Python strings. Also, automatically unpacks
    # QVariants to their underlying objects.
    import sip

    if version is not None:
        sip.setapi('QString', version)
        sip.setapi('QVariant', version)

    from PyQt4 import QtGui, QtCore, QtSvg

    if not check_version(QtCore.PYQT_VERSION_STR, '4.7'):
        raise ImportError("IPython requires PyQt4 >= 4.7, found %s" %
                          QtCore.PYQT_VERSION_STR)

    # Alias PyQt-specific functions for PySide compatibility.
    QtCore.Signal = QtCore.pyqtSignal
    QtCore.Slot = QtCore.pyqtSlot

    # query for the API version (in case version == None)
    version = sip.getapi('QString')
    api = QT_API_PYQTv1 if version == 1 else QT_API_PYQT
    return QtCore, QtGui, QtSvg, api 

# 需要導入模塊: from PyQt4 import QtCore [as 別名]
# 或者: from PyQt4.QtCore import Signal [as 別名]
def import_pyqt5():
    """
    Import PyQt5

    ImportErrors raised within this function are non-recoverable
    """
    from PyQt5 import QtGui, QtCore, QtSvg

    # Alias PyQt-specific functions for PySide compatibility.
    QtCore.Signal = QtCore.pyqtSignal
    QtCore.Slot = QtCore.pyqtSlot

    return QtCore, QtGui, QtSvg, QT_API_PYQT5 

# 需要導入模塊: from PyQt4 import QtCore [as 別名]
# 或者: from PyQt4.QtCore import Signal [as 別名]
def import_pyqt4(version=2):
    """
    Import PyQt4

    Parameters
    ----------
    version : 1, 2, or None
      Which QString/QVariant API to use. Set to None to use the system
      default

    ImportErrors rasied within this function are non-recoverable
    """
    # The new-style string API (version=2) automatically
    # converts QStrings to Unicode Python strings. Also, automatically unpacks
    # QVariants to their underlying objects.
    import sip

    if version is not None:
        sip.setapi('QString', version)
        sip.setapi('QVariant', version)

    from PyQt4 import QtGui, QtCore, QtSvg

    if not check_version(QtCore.PYQT_VERSION_STR, '4.7'):
        raise ImportError("QtConsole requires PyQt4 >= 4.7, found %s" %
                          QtCore.PYQT_VERSION_STR)

    # Alias PyQt-specific functions for PySide compatibility.
    QtCore.Signal = QtCore.pyqtSignal
    QtCore.Slot = QtCore.pyqtSlot

    # query for the API version (in case version == None)
    version = sip.getapi('QString')
    api = QT_API_PYQTv1 if version == 1 else QT_API_PYQT
    return QtCore, QtGui, QtSvg, api 

# 需要導入模塊: from PyQt4 import QtCore [as 別名]
# 或者: from PyQt4.QtCore import Signal [as 別名]
def _setup_pyqt4():
    global QtCore, QtGui, QtWidgets, __version__, is_pyqt5, _getSaveFileName

    def _setup_pyqt4_internal(api):
        global QtCore, QtGui, QtWidgets, \
            __version__, is_pyqt5, _getSaveFileName
        # List of incompatible APIs:
        # http://pyqt.sourceforge.net/Docs/PyQt4/incompatible_apis.html
        _sip_apis = ["QDate", "QDateTime", "QString", "QTextStream", "QTime",
                     "QUrl", "QVariant"]
        try:
            import sip
        except ImportError:
            pass
        else:
            for _sip_api in _sip_apis:
                try:
                    sip.setapi(_sip_api, api)
                except ValueError:
                    pass
        from PyQt4 import QtCore, QtGui
        __version__ = QtCore.PYQT_VERSION_STR
        # PyQt 4.6 introduced getSaveFileNameAndFilter:
        # https://riverbankcomputing.com/news/pyqt-46
        if __version__ < LooseVersion("4.6"):
            raise ImportError("PyQt<4.6 is not supported")
        QtCore.Signal = QtCore.pyqtSignal
        QtCore.Slot = QtCore.pyqtSlot
        QtCore.Property = QtCore.pyqtProperty
        _getSaveFileName = QtGui.QFileDialog.getSaveFileNameAndFilter

    if QT_API == QT_API_PYQTv2:
        _setup_pyqt4_internal(api=2)
    elif QT_API == QT_API_PYSIDE:
        from PySide import QtCore, QtGui, __version__, __version_info__
        # PySide 1.0.3 fixed the following:
        # https://srinikom.github.io/pyside-bz-archive/809.html
        if __version_info__ < (1, 0, 3):
            raise ImportError("PySide<1.0.3 is not supported")
        _getSaveFileName = QtGui.QFileDialog.getSaveFileName
    elif QT_API == QT_API_PYQT:
        _setup_pyqt4_internal(api=1)
    else:
        raise ValueError("Unexpected value for the 'backend.qt4' rcparam")
    QtWidgets = QtGui

    def is_pyqt5():
        return False