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Qt.py
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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
import importlib
__version__ = "1.1.0.b1"
# 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.
Find or add excluded members in build_membership.py
"""
_common_members = {
"QtGui": [
"QAbstractTextDocumentLayout",
"QActionEvent",
"QBitmap",
"QBrush",
"QClipboard",
"QCloseEvent",
"QColor",
"QConicalGradient",
"QContextMenuEvent",
"QCursor",
"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",
"QTransform",
"QValidator",
"QVector2D",
"QVector3D",
"QVector4D",
"QWhatsThisClickedEvent",
"QWheelEvent",
"QWindowStateChangeEvent",
"qAlpha",
"qBlue",
"qGray",
"qGreen",
"qIsGray",
"qRed",
"qRgb",
"qRgb",
],
"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",
],
"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",
"QIODevice",
"QLibraryInfo",
"QLine",
"QLineF",
"QLocale",
"QMargins",
"QMetaClassInfo",
"QMetaEnum",
"QMetaMethod",
"QMetaObject",
"QMetaProperty",
"QMetaType",
"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",
"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",
],
"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"
],
"QtHelp": [
"QHelpContentItem",
"QHelpContentModel",
"QHelpContentWidget",
"QHelpEngine",
"QHelpEngineCore",
"QHelpIndexModel",
"QHelpIndexWidget",
"QHelpSearchEngine",
"QHelpSearchQuery",
"QHelpSearchQueryWidget",
"QHelpSearchResultWidget"
],
"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"
]
}
"""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",
},
"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",
},
"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",
},
"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",
}
}
def _apply_site_config():
try:
import QtSiteConfig
except ImportError:
# If no QtSiteConfig module found, no modifications
# to _common_members are needed.
pass
else:
# Update _common_members with any changes made by QtSiteConfig
QtSiteConfig.update_members(_common_members)
def _new_module(name):
return types.ModuleType(__name__ + "." + name)
def _setup(module, extras):
"""Install common submodules"""
Qt.__binding__ = module.__name__
for name in list(_common_members) + extras:
try:
submodule = importlib.import_module(
module.__name__ + "." + 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):
"""Parse `_misplaced_members` dict and remap
values based on the underlying binding.
:param str binding: Top level binding in _misplaced_members.
"""
for src, dst in _misplaced_members[binding].items():
src_module, src_member = src.split(".")
dst_module, dst_member = dst.split(".")
try:
src_object = getattr(Qt, dst_module)
except AttributeError:
# Skip reassignment of non-existing members.
# 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.
continue
dst_value = getattr(getattr(Qt, "_" + src_module), src_member)
setattr(
src_object,
dst_member,
dst_value
)
def _pyside2():
"""Initialise PySide2
These functions serve to test the existence of a binding
along with set it up in such a way that it aligns with
the final step; adding members from the original binding
to Qt.py
"""
import PySide2 as module
_setup(module, ["QtUiTools"])
Qt.__binding_version__ = module.__version__
try:
import shiboken2
Qt.QtCompat.wrapInstance = (
lambda ptr, base=None: _wrapinstance(
shiboken2.wrapInstance, ptr, base)
)
Qt.QtCompat.getCppPointer = lambda object: \
shiboken2.getCppPointer(object)[0]
except ImportError:
pass # Optional
if hasattr(Qt, "_QtUiTools"):
Qt.QtCompat.loadUi = _loadUi
if hasattr(Qt, "_QtCore"):
Qt.__qt_version__ = Qt._QtCore.qVersion()
Qt.QtCompat.translate = Qt._QtCore.QCoreApplication.translate
if hasattr(Qt, "_QtWidgets"):
Qt.QtCompat.setSectionResizeMode = \
Qt._QtWidgets.QHeaderView.setSectionResizeMode
_reassign_misplaced_members("pyside2")
def _pyside():
"""Initialise PySide"""
import PySide as module
_setup(module, ["QtUiTools"])
Qt.__binding_version__ = module.__version__
try:
import shiboken
Qt.QtCompat.wrapInstance = (
lambda ptr, base=None: _wrapinstance(
shiboken.wrapInstance, ptr, base)
)
Qt.QtCompat.getCppPointer = lambda object: \
shiboken.getCppPointer(object)[0]
except ImportError:
pass # Optional
if hasattr(Qt, "_QtUiTools"):
Qt.QtCompat.loadUi = _loadUi
if hasattr(Qt, "_QtGui"):
setattr(Qt, "QtWidgets", _new_module("QtWidgets"))
setattr(Qt, "_QtWidgets", Qt._QtGui)
Qt.QtCompat.setSectionResizeMode = Qt._QtGui.QHeaderView.setResizeMode
if hasattr(Qt, "_QtCore"):
Qt.__qt_version__ = Qt._QtCore.qVersion()
QCoreApplication = Qt._QtCore.QCoreApplication
Qt.QtCompat.translate = (
lambda context, sourceText, disambiguation, n:
QCoreApplication.translate(
context,
sourceText,
disambiguation,
QCoreApplication.CodecForTr,
n
)
)
_reassign_misplaced_members("pyside")
def _pyqt5():
"""Initialise PyQt5"""
import PyQt5 as module
_setup(module, ["uic"])
try:
import sip
Qt.QtCompat.wrapInstance = (
lambda ptr, base=None: _wrapinstance(
sip.wrapinstance, ptr, base)
)
Qt.QtCompat.getCppPointer = lambda object: \
sip.unwrapinstance(object)
except ImportError:
pass # Optional
if hasattr(Qt, "_uic"):
Qt.QtCompat.loadUi = _loadUi
if hasattr(Qt, "_QtCore"):
Qt.__binding_version__ = Qt._QtCore.PYQT_VERSION_STR
Qt.__qt_version__ = Qt._QtCore.QT_VERSION_STR
Qt.QtCompat.translate = Qt._QtCore.QCoreApplication.translate
if hasattr(Qt, "_QtWidgets"):
Qt.QtCompat.setSectionResizeMode = \
Qt._QtWidgets.QHeaderView.setSectionResizeMode
_reassign_misplaced_members("pyqt5")
def _pyqt4():
"""Initialise PyQt4"""
import sip
# Validation of envivornment variable. Prevents an error if
# the variable is invalid since it's just a hint.
try:
hint = int(QT_SIP_API_HINT)
except TypeError:
hint = None # Variable was None, i.e. not set.
except ValueError:
raise ImportError("QT_SIP_API_HINT=%s must be a 1 or 2")
for api in ("QString",
"QVariant",
"QDate",
"QDateTime",
"QTextStream",
"QTime",
"QUrl"):
try:
sip.setapi(api, hint or 2)
except AttributeError:
raise ImportError("PyQt4 < 4.6 isn't supported by Qt.py")
except ValueError:
actual = sip.getapi(api)
if not hint:
raise ImportError("API version already set to %d" % actual)
else:
# Having provided a hint indicates a soft constraint, one
# that doesn't throw an exception.
sys.stderr.write(
"Warning: API '%s' has already been set to %d.\n"
% (api, actual)
)
import PyQt4 as module
_setup(module, ["uic"])
try:
import sip
Qt.QtCompat.wrapInstance = (
lambda ptr, base=None: _wrapinstance(
sip.wrapinstance, ptr, base)
)
Qt.QtCompat.getCppPointer = lambda object: \
sip.unwrapinstance(object)
except ImportError:
pass # Optional
if hasattr(Qt, "_uic"):
Qt.QtCompat.loadUi = _loadUi
if hasattr(Qt, "_QtGui"):
setattr(Qt, "QtWidgets", _new_module("QtWidgets"))
setattr(Qt, "_QtWidgets", Qt._QtGui)
Qt.QtCompat.setSectionResizeMode = \
Qt._QtGui.QHeaderView.setResizeMode
if hasattr(Qt, "_QtCore"):
Qt.__binding_version__ = Qt._QtCore.PYQT_VERSION_STR
Qt.__qt_version__ = Qt._QtCore.QT_VERSION_STR
QCoreApplication = Qt._QtCore.QCoreApplication
Qt.QtCompat.translate = (
lambda context, sourceText, disambiguation, n:
QCoreApplication.translate(
context,
sourceText,
disambiguation,
QCoreApplication.CodecForTr,
n)
)
_reassign_misplaced_members("pyqt4")
def _none():
"""Internal option (used in installer)"""
Mock = type("Mock", (), {"__getattr__": lambda Qt, attr: None})
Qt.__binding__ = "None"
Qt.__qt_version__ = "0.0.0"
Qt.__binding_version__ = "0.0.0"
Qt.QtCompat.loadUi = lambda uifile, baseinstance=None: None
Qt.QtCompat.setSectionResizeMode = lambda *args, **kwargs: None
for submodule in _common_members.keys():
setattr(Qt, submodule, Mock())
setattr(Qt, "_" + submodule, Mock())
def _log(text):
if QT_VERBOSE:
sys.stdout.write(text + "\n")
def _loadUi(uifile, baseinstance=None):
"""Dynamically load a user interface from the given `uifile`
This function calls `uic.loadUi` if using PyQt bindings,
else it implements a comparable binding for PySide.
Documentation:
http://pyqt.sourceforge.net/Docs/PyQt5/designer.html#PyQt5.uic.loadUi
Arguments:
uifile (str): Absolute path to Qt Designer file.