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Qt.py
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"""Minimal Python 2 & 3 shim around all Qt bindings
DOCUMENTATION
Qt.py was born in the film and visual effects industry to address
the growing need for the development of software capable of running
with more than one flavour of the Qt bindings for Python - PySide,
PySide2, PyQt4 and PyQt5.
1. Build for one, run with all
2. Explicit is better than implicit
3. Support co-existence
Default resolution order:
- PySide2
- PyQt5
- PySide
- PyQt4
Usage:
>> import sys
>> from Qt import QtWidgets
>> app = QtWidgets.QApplication(sys.argv)
>> button = QtWidgets.QPushButton("Hello World")
>> button.show()
>> app.exec_()
All members of PySide2 are mapped from other bindings, should they exist.
If no equivalent member exist, it is excluded from Qt.py and inaccessible.
The idea is to highlight members that exist across all supported binding,
and guarantee that code that runs on one binding runs on all others.
For more details, visit https://github.com/mottosso/Qt.py
LICENSE
See end of file for license (MIT, BSD) information.
"""
import os
import sys
import types
import shutil
__version__ = "1.1.0"
# Enable support for `from Qt import *`
__all__ = []
# Flags from environment variables
QT_VERBOSE = bool(os.getenv("QT_VERBOSE"))
QT_PREFERRED_BINDING = os.getenv("QT_PREFERRED_BINDING", "")
QT_SIP_API_HINT = os.getenv("QT_SIP_API_HINT")
# Reference to Qt.py
Qt = sys.modules[__name__]
Qt.QtCompat = types.ModuleType("QtCompat")
try:
long
except NameError:
# Python 3 compatibility
long = int
"""Common members of all bindings
This is where each member of Qt.py is explicitly defined.
It is based on a "lowest common denominator" of all bindings;
including members found in each of the 4 bindings.
The "_common_members" dictionary is generated using the
build_membership.sh script.
"""
_common_members = {
"QtCore": [
"QAbstractAnimation",
"QAbstractEventDispatcher",
"QAbstractItemModel",
"QAbstractListModel",
"QAbstractState",
"QAbstractTableModel",
"QAbstractTransition",
"QAnimationGroup",
"QBasicTimer",
"QBitArray",
"QBuffer",
"QByteArray",
"QByteArrayMatcher",
"QChildEvent",
"QCoreApplication",
"QCryptographicHash",
"QDataStream",
"QDate",
"QDateTime",
"QDir",
"QDirIterator",
"QDynamicPropertyChangeEvent",
"QEasingCurve",
"QElapsedTimer",
"QEvent",
"QEventLoop",
"QEventTransition",
"QFile",
"QFileInfo",
"QFileSystemWatcher",
"QFinalState",
"QGenericArgument",
"QGenericReturnArgument",
"QHistoryState",
"QItemSelectionRange",
"QIODevice",
"QLibraryInfo",
"QLine",
"QLineF",
"QLocale",
"QMargins",
"QMetaClassInfo",
"QMetaEnum",
"QMetaMethod",
"QMetaObject",
"QMetaProperty",
"QMimeData",
"QModelIndex",
"QMutex",
"QMutexLocker",
"QObject",
"QParallelAnimationGroup",
"QPauseAnimation",
"QPersistentModelIndex",
"QPluginLoader",
"QPoint",
"QPointF",
"QProcess",
"QProcessEnvironment",
"QPropertyAnimation",
"QReadLocker",
"QReadWriteLock",
"QRect",
"QRectF",
"QRegExp",
"QResource",
"QRunnable",
"QSemaphore",
"QSequentialAnimationGroup",
"QSettings",
"QSignalMapper",
"QSignalTransition",
"QSize",
"QSizeF",
"QSocketNotifier",
"QState",
"QStateMachine",
"QSysInfo",
"QSystemSemaphore",
"QT_TRANSLATE_NOOP",
"QT_TR_NOOP",
"QT_TR_NOOP_UTF8",
"QTemporaryFile",
"QTextBoundaryFinder",
"QTextCodec",
"QTextDecoder",
"QTextEncoder",
"QTextStream",
"QTextStreamManipulator",
"QThread",
"QThreadPool",
"QTime",
"QTimeLine",
"QTimer",
"QTimerEvent",
"QTranslator",
"QUrl",
"QVariantAnimation",
"QWaitCondition",
"QWriteLocker",
"QXmlStreamAttribute",
"QXmlStreamAttributes",
"QXmlStreamEntityDeclaration",
"QXmlStreamEntityResolver",
"QXmlStreamNamespaceDeclaration",
"QXmlStreamNotationDeclaration",
"QXmlStreamReader",
"QXmlStreamWriter",
"Qt",
"QtCriticalMsg",
"QtDebugMsg",
"QtFatalMsg",
"QtMsgType",
"QtSystemMsg",
"QtWarningMsg",
"qAbs",
"qAddPostRoutine",
"qChecksum",
"qCritical",
"qDebug",
"qFatal",
"qFuzzyCompare",
"qIsFinite",
"qIsInf",
"qIsNaN",
"qIsNull",
"qRegisterResourceData",
"qUnregisterResourceData",
"qVersion",
"qWarning",
"qrand",
"qsrand"
],
"QtGui": [
"QAbstractTextDocumentLayout",
"QActionEvent",
"QBitmap",
"QBrush",
"QClipboard",
"QCloseEvent",
"QColor",
"QConicalGradient",
"QContextMenuEvent",
"QCursor",
"QDesktopServices",
"QDoubleValidator",
"QDrag",
"QDragEnterEvent",
"QDragLeaveEvent",
"QDragMoveEvent",
"QDropEvent",
"QFileOpenEvent",
"QFocusEvent",
"QFont",
"QFontDatabase",
"QFontInfo",
"QFontMetrics",
"QFontMetricsF",
"QGradient",
"QHelpEvent",
"QHideEvent",
"QHoverEvent",
"QIcon",
"QIconDragEvent",
"QIconEngine",
"QImage",
"QImageIOHandler",
"QImageReader",
"QImageWriter",
"QInputEvent",
"QInputMethodEvent",
"QIntValidator",
"QKeyEvent",
"QKeySequence",
"QLinearGradient",
"QMatrix2x2",
"QMatrix2x3",
"QMatrix2x4",
"QMatrix3x2",
"QMatrix3x3",
"QMatrix3x4",
"QMatrix4x2",
"QMatrix4x3",
"QMatrix4x4",
"QMouseEvent",
"QMoveEvent",
"QMovie",
"QPaintDevice",
"QPaintEngine",
"QPaintEngineState",
"QPaintEvent",
"QPainter",
"QPainterPath",
"QPainterPathStroker",
"QPalette",
"QPen",
"QPicture",
"QPictureIO",
"QPixmap",
"QPixmapCache",
"QPolygon",
"QPolygonF",
"QQuaternion",
"QRadialGradient",
"QRegExpValidator",
"QRegion",
"QResizeEvent",
"QSessionManager",
"QShortcutEvent",
"QShowEvent",
"QStandardItem",
"QStandardItemModel",
"QStatusTipEvent",
"QSyntaxHighlighter",
"QTabletEvent",
"QTextBlock",
"QTextBlockFormat",
"QTextBlockGroup",
"QTextBlockUserData",
"QTextCharFormat",
"QTextCursor",
"QTextDocument",
"QTextDocumentFragment",
"QTextFormat",
"QTextFragment",
"QTextFrame",
"QTextFrameFormat",
"QTextImageFormat",
"QTextInlineObject",
"QTextItem",
"QTextLayout",
"QTextLength",
"QTextLine",
"QTextList",
"QTextListFormat",
"QTextObject",
"QTextObjectInterface",
"QTextOption",
"QTextTable",
"QTextTableCell",
"QTextTableCellFormat",
"QTextTableFormat",
"QTouchEvent",
"QTransform",
"QValidator",
"QVector2D",
"QVector3D",
"QVector4D",
"QWhatsThisClickedEvent",
"QWheelEvent",
"QWindowStateChangeEvent",
"qAlpha",
"qBlue",
"qGray",
"qGreen",
"qIsGray",
"qRed",
"qRgb",
"qRgba"
],
"QtHelp": [
"QHelpContentItem",
"QHelpContentModel",
"QHelpContentWidget",
"QHelpEngine",
"QHelpEngineCore",
"QHelpIndexModel",
"QHelpIndexWidget",
"QHelpSearchEngine",
"QHelpSearchQuery",
"QHelpSearchQueryWidget",
"QHelpSearchResultWidget"
],
"QtMultimedia": [
"QAbstractVideoBuffer",
"QAbstractVideoSurface",
"QAudio",
"QAudioDeviceInfo",
"QAudioFormat",
"QAudioInput",
"QAudioOutput",
"QVideoFrame",
"QVideoSurfaceFormat"
],
"QtNetwork": [
"QAbstractNetworkCache",
"QAbstractSocket",
"QAuthenticator",
"QHostAddress",
"QHostInfo",
"QLocalServer",
"QLocalSocket",
"QNetworkAccessManager",
"QNetworkAddressEntry",
"QNetworkCacheMetaData",
"QNetworkConfiguration",
"QNetworkConfigurationManager",
"QNetworkCookie",
"QNetworkCookieJar",
"QNetworkDiskCache",
"QNetworkInterface",
"QNetworkProxy",
"QNetworkProxyFactory",
"QNetworkProxyQuery",
"QNetworkReply",
"QNetworkRequest",
"QNetworkSession",
"QSsl",
"QTcpServer",
"QTcpSocket",
"QUdpSocket"
],
"QtOpenGL": [
"QGL",
"QGLContext",
"QGLFormat",
"QGLWidget"
],
"QtPrintSupport": [
"QAbstractPrintDialog",
"QPageSetupDialog",
"QPrintDialog",
"QPrintEngine",
"QPrintPreviewDialog",
"QPrintPreviewWidget",
"QPrinter",
"QPrinterInfo"
],
"QtSql": [
"QSql",
"QSqlDatabase",
"QSqlDriver",
"QSqlDriverCreatorBase",
"QSqlError",
"QSqlField",
"QSqlIndex",
"QSqlQuery",
"QSqlQueryModel",
"QSqlRecord",
"QSqlRelation",
"QSqlRelationalDelegate",
"QSqlRelationalTableModel",
"QSqlResult",
"QSqlTableModel"
],
"QtSvg": [
"QGraphicsSvgItem",
"QSvgGenerator",
"QSvgRenderer",
"QSvgWidget"
],
"QtTest": [
"QTest"
],
"QtWidgets": [
"QAbstractButton",
"QAbstractGraphicsShapeItem",
"QAbstractItemDelegate",
"QAbstractItemView",
"QAbstractScrollArea",
"QAbstractSlider",
"QAbstractSpinBox",
"QAction",
"QActionGroup",
"QApplication",
"QBoxLayout",
"QButtonGroup",
"QCalendarWidget",
"QCheckBox",
"QColorDialog",
"QColumnView",
"QComboBox",
"QCommandLinkButton",
"QCommonStyle",
"QCompleter",
"QDataWidgetMapper",
"QDateEdit",
"QDateTimeEdit",
"QDesktopWidget",
"QDial",
"QDialog",
"QDialogButtonBox",
"QDirModel",
"QDockWidget",
"QDoubleSpinBox",
"QErrorMessage",
"QFileDialog",
"QFileIconProvider",
"QFileSystemModel",
"QFocusFrame",
"QFontComboBox",
"QFontDialog",
"QFormLayout",
"QFrame",
"QGesture",
"QGestureEvent",
"QGestureRecognizer",
"QGraphicsAnchor",
"QGraphicsAnchorLayout",
"QGraphicsBlurEffect",
"QGraphicsColorizeEffect",
"QGraphicsDropShadowEffect",
"QGraphicsEffect",
"QGraphicsEllipseItem",
"QGraphicsGridLayout",
"QGraphicsItem",
"QGraphicsItemGroup",
"QGraphicsLayout",
"QGraphicsLayoutItem",
"QGraphicsLineItem",
"QGraphicsLinearLayout",
"QGraphicsObject",
"QGraphicsOpacityEffect",
"QGraphicsPathItem",
"QGraphicsPixmapItem",
"QGraphicsPolygonItem",
"QGraphicsProxyWidget",
"QGraphicsRectItem",
"QGraphicsRotation",
"QGraphicsScale",
"QGraphicsScene",
"QGraphicsSceneContextMenuEvent",
"QGraphicsSceneDragDropEvent",
"QGraphicsSceneEvent",
"QGraphicsSceneHelpEvent",
"QGraphicsSceneHoverEvent",
"QGraphicsSceneMouseEvent",
"QGraphicsSceneMoveEvent",
"QGraphicsSceneResizeEvent",
"QGraphicsSceneWheelEvent",
"QGraphicsSimpleTextItem",
"QGraphicsTextItem",
"QGraphicsTransform",
"QGraphicsView",
"QGraphicsWidget",
"QGridLayout",
"QGroupBox",
"QHBoxLayout",
"QHeaderView",
"QInputDialog",
"QItemDelegate",
"QItemEditorCreatorBase",
"QItemEditorFactory",
"QKeyEventTransition",
"QLCDNumber",
"QLabel",
"QLayout",
"QLayoutItem",
"QLineEdit",
"QListView",
"QListWidget",
"QListWidgetItem",
"QMainWindow",
"QMdiArea",
"QMdiSubWindow",
"QMenu",
"QMenuBar",
"QMessageBox",
"QMouseEventTransition",
"QPanGesture",
"QPinchGesture",
"QPlainTextDocumentLayout",
"QPlainTextEdit",
"QProgressBar",
"QProgressDialog",
"QPushButton",
"QRadioButton",
"QRubberBand",
"QScrollArea",
"QScrollBar",
"QShortcut",
"QSizeGrip",
"QSizePolicy",
"QSlider",
"QSpacerItem",
"QSpinBox",
"QSplashScreen",
"QSplitter",
"QSplitterHandle",
"QStackedLayout",
"QStackedWidget",
"QStatusBar",
"QStyle",
"QStyleFactory",
"QStyleHintReturn",
"QStyleHintReturnMask",
"QStyleHintReturnVariant",
"QStyleOption",
"QStyleOptionButton",
"QStyleOptionComboBox",
"QStyleOptionComplex",
"QStyleOptionDockWidget",
"QStyleOptionFocusRect",
"QStyleOptionFrame",
"QStyleOptionGraphicsItem",
"QStyleOptionGroupBox",
"QStyleOptionHeader",
"QStyleOptionMenuItem",
"QStyleOptionProgressBar",
"QStyleOptionRubberBand",
"QStyleOptionSizeGrip",
"QStyleOptionSlider",
"QStyleOptionSpinBox",
"QStyleOptionTab",
"QStyleOptionTabBarBase",
"QStyleOptionTabWidgetFrame",
"QStyleOptionTitleBar",
"QStyleOptionToolBar",
"QStyleOptionToolBox",
"QStyleOptionToolButton",
"QStyleOptionViewItem",
"QStylePainter",
"QStyledItemDelegate",
"QSwipeGesture",
"QSystemTrayIcon",
"QTabBar",
"QTabWidget",
"QTableView",
"QTableWidget",
"QTableWidgetItem",
"QTableWidgetSelectionRange",
"QTapAndHoldGesture",
"QTapGesture",
"QTextBrowser",
"QTextEdit",
"QTimeEdit",
"QToolBar",
"QToolBox",
"QToolButton",
"QToolTip",
"QTreeView",
"QTreeWidget",
"QTreeWidgetItem",
"QTreeWidgetItemIterator",
"QUndoCommand",
"QUndoGroup",
"QUndoStack",
"QUndoView",
"QVBoxLayout",
"QWhatsThis",
"QWidget",
"QWidgetAction",
"QWidgetItem",
"QWizard",
"QWizardPage"
],
"QtX11Extras": [
"QX11Info"
],
"QtXml": [
"QDomAttr",
"QDomCDATASection",
"QDomCharacterData",
"QDomComment",
"QDomDocument",
"QDomDocumentFragment",
"QDomDocumentType",
"QDomElement",
"QDomEntity",
"QDomEntityReference",
"QDomImplementation",
"QDomNamedNodeMap",
"QDomNode",
"QDomNodeList",
"QDomNotation",
"QDomProcessingInstruction",
"QDomText",
"QXmlAttributes",
"QXmlContentHandler",
"QXmlDTDHandler",
"QXmlDeclHandler",
"QXmlDefaultHandler",
"QXmlEntityResolver",
"QXmlErrorHandler",
"QXmlInputSource",
"QXmlLexicalHandler",
"QXmlLocator",
"QXmlNamespaceSupport",
"QXmlParseException",
"QXmlReader",
"QXmlSimpleReader"
],
"QtXmlPatterns": [
"QAbstractMessageHandler",
"QAbstractUriResolver",
"QAbstractXmlNodeModel",
"QAbstractXmlReceiver",
"QSourceLocation",
"QXmlFormatter",
"QXmlItem",
"QXmlName",
"QXmlNamePool",
"QXmlNodeModelIndex",
"QXmlQuery",
"QXmlResultItems",
"QXmlSchema",
"QXmlSchemaValidator",
"QXmlSerializer"
]
}
"""Misplaced members
These members from the original submodule are misplaced relative PySide2
"""
_misplaced_members = {
"PySide2": {
"QtGui.QStringListModel": "QtCore.QStringListModel",
"QtCore.Property": "QtCore.Property",
"QtCore.Signal": "QtCore.Signal",
"QtCore.Slot": "QtCore.Slot",
"QtCore.QAbstractProxyModel": "QtCore.QAbstractProxyModel",
"QtCore.QSortFilterProxyModel": "QtCore.QSortFilterProxyModel",
"QtCore.QItemSelection": "QtCore.QItemSelection",
"QtCore.QItemSelectionModel": "QtCore.QItemSelectionModel",
"QtCore.QItemSelectionRange": "QtCore.QItemSelectionRange",
},
"PyQt5": {
"QtCore.pyqtProperty": "QtCore.Property",
"QtCore.pyqtSignal": "QtCore.Signal",
"QtCore.pyqtSlot": "QtCore.Slot",
"QtCore.QAbstractProxyModel": "QtCore.QAbstractProxyModel",
"QtCore.QSortFilterProxyModel": "QtCore.QSortFilterProxyModel",
"QtCore.QStringListModel": "QtCore.QStringListModel",
"QtCore.QItemSelection": "QtCore.QItemSelection",
"QtCore.QItemSelectionModel": "QtCore.QItemSelectionModel",
"QtCore.QItemSelectionRange": "QtCore.QItemSelectionRange",
},
"PySide": {
"QtGui.QAbstractProxyModel": "QtCore.QAbstractProxyModel",
"QtGui.QSortFilterProxyModel": "QtCore.QSortFilterProxyModel",
"QtGui.QStringListModel": "QtCore.QStringListModel",
"QtGui.QItemSelection": "QtCore.QItemSelection",
"QtGui.QItemSelectionModel": "QtCore.QItemSelectionModel",
"QtCore.Property": "QtCore.Property",
"QtCore.Signal": "QtCore.Signal",
"QtCore.Slot": "QtCore.Slot",
"QtGui.QItemSelectionRange": "QtCore.QItemSelectionRange",
"QtGui.QAbstractPrintDialog": "QtPrintSupport.QAbstractPrintDialog",
"QtGui.QPageSetupDialog": "QtPrintSupport.QPageSetupDialog",
"QtGui.QPrintDialog": "QtPrintSupport.QPrintDialog",
"QtGui.QPrintEngine": "QtPrintSupport.QPrintEngine",
"QtGui.QPrintPreviewDialog": "QtPrintSupport.QPrintPreviewDialog",
"QtGui.QPrintPreviewWidget": "QtPrintSupport.QPrintPreviewWidget",
"QtGui.QPrinter": "QtPrintSupport.QPrinter",
"QtGui.QPrinterInfo": "QtPrintSupport.QPrinterInfo",
},
"PyQt4": {
"QtGui.QAbstractProxyModel": "QtCore.QAbstractProxyModel",
"QtGui.QSortFilterProxyModel": "QtCore.QSortFilterProxyModel",
"QtGui.QItemSelection": "QtCore.QItemSelection",
"QtGui.QStringListModel": "QtCore.QStringListModel",
"QtGui.QItemSelectionModel": "QtCore.QItemSelectionModel",
"QtCore.pyqtProperty": "QtCore.Property",
"QtCore.pyqtSignal": "QtCore.Signal",
"QtCore.pyqtSlot": "QtCore.Slot",
"QtGui.QItemSelectionRange": "QtCore.QItemSelectionRange",
"QtGui.QAbstractPrintDialog": "QtPrintSupport.QAbstractPrintDialog",
"QtGui.QPageSetupDialog": "QtPrintSupport.QPageSetupDialog",
"QtGui.QPrintDialog": "QtPrintSupport.QPrintDialog",
"QtGui.QPrintEngine": "QtPrintSupport.QPrintEngine",
"QtGui.QPrintPreviewDialog": "QtPrintSupport.QPrintPreviewDialog",
"QtGui.QPrintPreviewWidget": "QtPrintSupport.QPrintPreviewWidget",
"QtGui.QPrinter": "QtPrintSupport.QPrinter",
"QtGui.QPrinterInfo": "QtPrintSupport.QPrinterInfo",
}
}
""" Compatibility Members
This dictionary is used to build Qt.QtCompat objects that provide a consistent
interface for obsolete members, and differences in binding return values.
{
"binding": {
"classname": {
"targetname": "binding_namespace",
}
}
}
"""
_compatibility_members = {
"PySide2": {
"QHeaderView": {
"sectionsClickable": "QtWidgets.QHeaderView.sectionsClickable",
"setSectionsClickable":
"QtWidgets.QHeaderView.setSectionsClickable",
"sectionResizeMode": "QtWidgets.QHeaderView.sectionResizeMode",
"setSectionResizeMode":
"QtWidgets.QHeaderView.setSectionResizeMode",
"sectionsMovable": "QtWidgets.QHeaderView.sectionsMovable",
"setSectionsMovable": "QtWidgets.QHeaderView.setSectionsMovable",
},
"QFileDialog": {
"getOpenFileName": "QtWidgets.QFileDialog.getOpenFileName",
"getOpenFileNames": "QtWidgets.QFileDialog.getOpenFileNames",
"getSaveFileName": "QtWidgets.QFileDialog.getSaveFileName",
},
},
"PyQt5": {
"QHeaderView": {
"sectionsClickable": "QtWidgets.QHeaderView.sectionsClickable",
"setSectionsClickable":
"QtWidgets.QHeaderView.setSectionsClickable",
"sectionResizeMode": "QtWidgets.QHeaderView.sectionResizeMode",
"setSectionResizeMode":
"QtWidgets.QHeaderView.setSectionResizeMode",
"sectionsMovable": "QtWidgets.QHeaderView.sectionsMovable",
"setSectionsMovable": "QtWidgets.QHeaderView.setSectionsMovable",
},
"QFileDialog": {
"getOpenFileName": "QtWidgets.QFileDialog.getOpenFileName",
"getOpenFileNames": "QtWidgets.QFileDialog.getOpenFileNames",
"getSaveFileName": "QtWidgets.QFileDialog.getSaveFileName",
},
},
"PySide": {
"QHeaderView": {
"sectionsClickable": "QtWidgets.QHeaderView.isClickable",
"setSectionsClickable": "QtWidgets.QHeaderView.setClickable",
"sectionResizeMode": "QtWidgets.QHeaderView.resizeMode",
"setSectionResizeMode": "QtWidgets.QHeaderView.setResizeMode",
"sectionsMovable": "QtWidgets.QHeaderView.isMovable",
"setSectionsMovable": "QtWidgets.QHeaderView.setMovable",
},
"QFileDialog": {
"getOpenFileName": "QtWidgets.QFileDialog.getOpenFileName",
"getOpenFileNames": "QtWidgets.QFileDialog.getOpenFileNames",
"getSaveFileName": "QtWidgets.QFileDialog.getSaveFileName",
},
},
"PyQt4": {
"QHeaderView": {
"sectionsClickable": "QtWidgets.QHeaderView.isClickable",
"setSectionsClickable": "QtWidgets.QHeaderView.setClickable",
"sectionResizeMode": "QtWidgets.QHeaderView.resizeMode",
"setSectionResizeMode": "QtWidgets.QHeaderView.setResizeMode",
"sectionsMovable": "QtWidgets.QHeaderView.isMovable",
"setSectionsMovable": "QtWidgets.QHeaderView.setMovable",
},
"QFileDialog": {
"getOpenFileName": "QtWidgets.QFileDialog.getOpenFileName",
"getOpenFileNames": "QtWidgets.QFileDialog.getOpenFileNames",
"getSaveFileName": "QtWidgets.QFileDialog.getSaveFileName",
},
},
}
def _apply_site_config():
try:
import QtSiteConfig
except ImportError:
# If no QtSiteConfig module found, no modifications
# to _common_members are needed.
pass
else:
# Provide the ability to modify the dicts used to build Qt.py
if hasattr(QtSiteConfig, 'update_members'):
QtSiteConfig.update_members(_common_members)
if hasattr(QtSiteConfig, 'update_misplaced_members'):
QtSiteConfig.update_misplaced_members(members=_misplaced_members)
if hasattr(QtSiteConfig, 'update_compatibility_members'):
QtSiteConfig.update_compatibility_members(
members=_compatibility_members)
def _new_module(name):
return types.ModuleType(__name__ + "." + name)
def _import_sub_module(module, name):
"""import_sub_module will mimic the function of importlib.import_module"""
module = __import__(module.__name__ + "." + name)
for level in name.split("."):
module = getattr(module, level)
return module
def _setup(module, extras):
"""Install common submodules"""
Qt.__binding__ = module.__name__
for name in list(_common_members) + extras:
try:
submodule = _import_sub_module(
module, name)
except ImportError:
continue
setattr(Qt, "_" + name, submodule)
if name not in extras:
# Store reference to original binding,
# but don't store speciality modules
# such as uic or QtUiTools
setattr(Qt, name, _new_module(name))
def _wrapinstance(func, ptr, base=None):
"""Enable implicit cast of pointer to most suitable class
This behaviour is available in sip per default.
Based on http://nathanhorne.com/pyqtpyside-wrap-instance
Usage:
This mechanism kicks in under these circumstances.
1. Qt.py is using PySide 1 or 2.
2. A `base` argument is not provided.
See :func:`QtCompat.wrapInstance()`
Arguments:
func (function): Original function
ptr (long): Pointer to QObject in memory
base (QObject, optional): Base class to wrap with. Defaults to QObject,
which should handle anything.
"""
assert isinstance(ptr, long), "Argument 'ptr' must be of type <long>"
assert (base is None) or issubclass(base, Qt.QtCore.QObject), (
"Argument 'base' must be of type <QObject>")
if base is None:
q_object = func(long(ptr), Qt.QtCore.QObject)
meta_object = q_object.metaObject()
class_name = meta_object.className()
super_class_name = meta_object.superClass().className()
if hasattr(Qt.QtWidgets, class_name):
base = getattr(Qt.QtWidgets, class_name)
elif hasattr(Qt.QtWidgets, super_class_name):
base = getattr(Qt.QtWidgets, super_class_name)
else:
base = Qt.QtCore.QObject
return func(long(ptr), base)
def _reassign_misplaced_members(binding):
"""Apply misplaced members from `binding` to Qt.py
Arguments:
binding (dict): Misplaced members
"""
for src, dst in _misplaced_members[binding].items():
src_module, src_member = src.split(".")
dst_module, dst_member = dst.split(".")
# Get the member we want to store in the namesapce.
try:
dst_value = getattr(getattr(Qt, "_" + src_module), src_member)
except AttributeError:
# If the member we want to store in the namespace does not exist,
# there is no need to continue. This can happen if a request was
# made to rename a member that didn't exist, for example
# if QtWidgets isn't available on the target platform.
_log("Misplaced member has no source: {}".format(src))
continue
try:
src_object = getattr(Qt, dst_module)
except AttributeError:
if dst_module not in _common_members:
# Only create the Qt parent module if its listed in
# _common_members. Without this check, if you remove QtCore
# from _common_members, the default _misplaced_members will add
# Qt.QtCore so it can add Signal, Slot, etc.
msg = 'Not creating missing member module "{m}" for "{c}"'
_log(msg.format(m=dst_module, c=dst_member))
continue
# If the dst is valid but the Qt parent module does not exist
# then go ahead and create a new module to contain the member.
setattr(Qt, dst_module, _new_module(dst_module))
src_object = getattr(Qt, dst_module)
# Enable direct import of the new module
sys.modules[__name__ + "." + dst_module] = src_object
setattr(
src_object,
dst_member,
dst_value
)
def _build_compatibility_members(binding, decorators=None):
"""Apply `binding` to QtCompat
Arguments:
binding (str): Top level binding in _compatibility_members.
decorators (dict, optional): Provides the ability to decorate the
original Qt methods when needed by a binding. This can be used
to change the returned value to a standard value. The key should
be the classname, the value is a dict where the keys are the
target method names, and the values are the decorator functions.
"""
decorators = decorators or dict()
# Allow optional site-level customization of the compatibility members.
# This method does not need to be implemented in QtSiteConfig.
try:
import QtSiteConfig
except ImportError:
pass
else:
if hasattr(QtSiteConfig, 'update_compatibility_decorators'):
QtSiteConfig.update_compatibility_decorators(binding, decorators)
_QtCompat = type("QtCompat", (object,), {})