我们从Python开源项目中，提取了以下23个代码示例，用于说明如何使用PyQt4.QtCore.pyqtSignal()。
def import_pyqt5(): """ Import PyQt5 ImportErrors rasied within this function are non-recoverable """ import sip from PyQt5 import QtCore, QtSvg, QtWidgets, QtGui # 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__) api = QT_API_PYQT5 return QtCore, QtGuiCompat, QtSvg, api
def _pyqt5(): import PyQt5.Qt from PyQt5 import QtCore, QtWidgets, uic _remap(QtCore, "Signal", QtCore.pyqtSignal) _remap(QtCore, "Slot", QtCore.pyqtSlot) _remap(QtCore, "Property", QtCore.pyqtProperty) _add(PyQt5, "__binding__", PyQt5.__name__) _add(PyQt5, "load_ui", lambda fname: uic.loadUi(fname)) _add(PyQt5, "translate", lambda context, sourceText, disambiguation, n: ( QtCore.QCoreApplication(context, sourceText, disambiguation, n))) _add(PyQt5, "setSectionResizeMode", QtWidgets.QHeaderView.setSectionResizeMode) _maintain_backwards_compatibility(PyQt5) return PyQt5
def __init__( self, messageManager, iface, settingsPrefix ): QObject.__init__( self ) self.iface = iface self.msg = messageManager self.settingsPrefix = settingsPrefix self.dictPartialSLOTs = {} self.listProviderExpressions = ['$id'] # Expressions that work when data is saved to provider QgsMapLayerRegistry.instance().layersAdded.connect( self.layersAddedSetAttributesAddedEvent ) QgsMapLayerRegistry.instance().layersAdded.connect( self.layersAddedEnableAutoFields ) # For any unknown reason, connecting to the SIGNAL layersRemoved gives segfault # In the meantime, using layerRemoved instead # To test layersRemoved, change pyqtSignal( str ) argument to list, # change AFM.disableAutoFields argument to layerIds and put its code into a for loop QgsMapLayerRegistry.instance().layerRemoved.connect( self.layersRemovedDisableAutoFields ) # Set AttributesAdded event for already existing layers self.layersAddedSetAttributesAddedEvent( QgsMapLayerRegistry.instance().mapLayers().values() ) self.afm = None
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
def pyqt5(): import PyQt5.Qt from PyQt5 import QtCore, uic remap(QtCore, "Signal", QtCore.pyqtSignal) remap(QtCore, "Slot", QtCore.pyqtSlot) remap(QtCore, "Property", QtCore.pyqtProperty) add(PyQt5, "__wrapper_version__", __version__) add(PyQt5, "__binding__", "PyQt5") add(PyQt5, "__binding_version__", QtCore.PYQT_VERSION_STR) add(PyQt5, "__qt_version__", QtCore.QT_VERSION_STR, safe=False) add(PyQt5, "__added__", __added__) add(PyQt5, "__remapped__", __remapped__) add(PyQt5, "__modified__", __modified__) add(PyQt5, "load_ui", lambda fname: uic.loadUi(fname)) return PyQt5
def load_pyqt4(): """Sets up PyQt4 nicely to be PySide-compatible as much as possible.""" # Kill off QString and QVariant to make it act properly like PySide import sip sip.setapi('QString', 2) sip.setapi('QVariant', 2) from PyQt4 import QtCore QtCore._QT_ENGINE = 'PyQt4' # Also rename the pyqt things for compatibility. QtCore.Signal = QtCore.pyqtSignal QtCore.Slot = QtCore.pyqtSlot QtCore.Property = QtCore.pyqtProperty global IS_PYQT4 IS_PYQT4 = True
def insert_property(classdict,name,property_placeholder): notify_name = name + '_changed' notify = QtCore.pyqtSignal(property_placeholder.property_type) classdict[notify_name] = notify getter = property_placeholder.create_getter(name) setter = property_placeholder.create_full_setter(name,notify_name) classdict[name] = QtCore.pyqtProperty(property_placeholder.property_type,fget=getter,fset=setter,notify=notify)
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
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
def _pyqt5(): import PyQt5.Qt from PyQt5 import QtCore, QtWidgets, uic _remap(QtCore, "Signal", QtCore.pyqtSignal) _remap(QtCore, "Slot", QtCore.pyqtSlot) _remap(QtCore, "Property", QtCore.pyqtProperty) _add(QtCompat, "__binding__", PyQt5.__name__) _add(QtCompat, "__binding_version__", PyQt5.QtCore.PYQT_VERSION_STR) _add(QtCompat, "__qt_version__", PyQt5.QtCore.QT_VERSION_STR) _add(QtCompat, "load_ui", lambda fname: uic.loadUi(fname)) _add(QtCompat, "translate", QtCore.QCoreApplication.translate) _add(QtCompat, "setSectionResizeMode", QtWidgets.QHeaderView.setSectionResizeMode) _maintain_backwards_compatibility(PyQt5) return PyQt5
def _pyqt4(): # Attempt to set sip API v2 (must be done prior to importing PyQt4) import sip try: sip.setapi("QString", 2) sip.setapi("QVariant", 2) sip.setapi("QDate", 2) sip.setapi("QDateTime", 2) sip.setapi("QTextStream", 2) sip.setapi("QTime", 2) sip.setapi("QUrl", 2) except AttributeError: raise ImportError # PyQt4 < v4.6 except ValueError: # API version already set to v1 raise ImportError import PyQt4.Qt from PyQt4 import QtCore, QtGui, uic _remap(PyQt4, "QtWidgets", QtGui) _remap(QtCore, "Signal", QtCore.pyqtSignal) _remap(QtCore, "Slot", QtCore.pyqtSlot) _remap(QtCore, "Property", QtCore.pyqtProperty) _remap(QtCore, "QItemSelection", QtGui.QItemSelection) _remap(QtCore, "QStringListModel", QtGui.QStringListModel) _remap(QtCore, "QItemSelectionModel", QtGui.QItemSelectionModel) _remap(QtCore, "QSortFilterProxyModel", QtGui.QSortFilterProxyModel) _remap(QtCore, "QAbstractProxyModel", QtGui.QAbstractProxyModel) try: from PyQt4 import QtWebKit _remap(PyQt4, "QtWebKitWidgets", QtWebKit) except ImportError: # QtWebkit is optional in Qt , therefore might not be available pass _add(PyQt4, "QtCompat", self) _add(PyQt4, "__binding__", PyQt4.__name__) _add(PyQt4, "load_ui", lambda fname: uic.loadUi(fname)) _add(PyQt4, "translate", lambda context, sourceText, disambiguation, n: ( QtCore.QCoreApplication(context, sourceText, disambiguation, None, n))) _add(PyQt4, "setSectionResizeMode", QtGui.QHeaderView.setResizeMode) _maintain_backwards_compatibility(PyQt4) return PyQt4
def pyqt4(): # Attempt to set sip API v2 (must be done prior to importing PyQt4) import sip try: sip.setapi("QString", 2) sip.setapi("QVariant", 2) sip.setapi("QDate", 2) sip.setapi("QDateTime", 2) sip.setapi("QTextStream", 2) sip.setapi("QTime", 2) sip.setapi("QUrl", 2) except AttributeError: raise ImportError # PyQt4 < v4.6 except ValueError: # API version already set to v1 raise ImportError import PyQt4.Qt from PyQt4 import QtCore, QtGui, uic remap(PyQt4, "QtWidgets", QtGui) remap(QtCore, "Signal", QtCore.pyqtSignal) remap(QtCore, "Slot", QtCore.pyqtSlot) remap(QtCore, "Property", QtCore.pyqtProperty) remap(QtCore, "QItemSelection", QtGui.QItemSelection) remap(QtCore, "QStringListModel", QtGui.QStringListModel) remap(QtCore, "QItemSelectionModel", QtGui.QItemSelectionModel) remap(QtCore, "QSortFilterProxyModel", QtGui.QSortFilterProxyModel) remap(QtCore, "QAbstractProxyModel", QtGui.QAbstractProxyModel) try: from PyQt4 import QtWebKit remap(PyQt4, "QtWebKitWidgets", QtWebKit) except ImportError: # QtWebkit is optional in Qt , therefore might not be available pass add(PyQt4, "__wrapper_version__", __version__) add(PyQt4, "__binding__", "PyQt4") add(PyQt4, "__binding_version__", QtCore.PYQT_VERSION_STR) add(PyQt4, "__qt_version__", QtCore.QT_VERSION_STR) add(PyQt4, "__added__", __added__) add(PyQt4, "__remapped__", __remapped__) add(PyQt4, "__modified__", __modified__) add(PyQt4, "load_ui", lambda fname: uic.loadUi(fname)) return PyQt4
def _pyqt4(): # Attempt to set sip API v2 (must be done prior to importing PyQt4) import sip try: sip.setapi("QString", 2) sip.setapi("QVariant", 2) sip.setapi("QDate", 2) sip.setapi("QDateTime", 2) sip.setapi("QTextStream", 2) sip.setapi("QTime", 2) sip.setapi("QUrl", 2) except AttributeError: raise ImportError # PyQt4 < v4.6 except ValueError: # API version already set to v1 raise ImportError import PyQt4.Qt from PyQt4 import QtCore, QtGui, uic _remap(PyQt4, "QtWidgets", QtGui) _remap(QtCore, "Signal", QtCore.pyqtSignal) _remap(QtCore, "Slot", QtCore.pyqtSlot) _remap(QtCore, "Property", QtCore.pyqtProperty) _remap(QtCore, "QItemSelection", QtGui.QItemSelection) _remap(QtCore, "QStringListModel", QtGui.QStringListModel) _remap(QtCore, "QItemSelectionModel", QtGui.QItemSelectionModel) _remap(QtCore, "QSortFilterProxyModel", QtGui.QSortFilterProxyModel) _remap(QtCore, "QAbstractProxyModel", QtGui.QAbstractProxyModel) try: from PyQt4 import QtWebKit _remap(PyQt4, "QtWebKitWidgets", QtWebKit) except ImportError: "QtWebkit is optional in Qt , therefore might not be available" _add(QtCompat, "__binding__", PyQt4.__name__) _add(QtCompat, "__binding_version__", PyQt4.QtCore.PYQT_VERSION_STR) _add(QtCompat, "__qt_version__", PyQt4.QtCore.QT_VERSION_STR) _add(QtCompat, "load_ui", lambda fname: uic.loadUi(fname)) _add(QtCompat, "setSectionResizeMode", QtGui.QHeaderView.setResizeMode) # PySide2 differs from Qt4 in that Qt4 has one extra argument # which is always `None`. The lambda arguments represents the PySide2 # interface, whereas the arguments passed to `.translate` represent # those expected of a Qt4 binding. _add(QtCompat, "translate", lambda context, sourceText, disambiguation, n: QtCore.QCoreApplication.translate(context, sourceText, disambiguation, QtCore.QCoreApplication.CodecForTr, n)) _maintain_backwards_compatibility(PyQt4) return PyQt4
