def testIsValid(self):
self.assertTrue(shiboken.isValid(object()))
self.assertTrue(shiboken.isValid(None))
bb = BlackBox()
item = ObjectType()
ticket = bb.keepObjectType(item)
bb.disposeObjectType(ticket)
self.assertFalse(shiboken.isValid(item))
def update_data(self):
# TODO dump data
# NOTE 清理已经删除的对象
QtWidgets.QApplication.processEvents()
self.group_list = [grp for grp in self.group_list if isValid(grp)]
for grp in self.group_list:
grp.item_list = [item for item in grp.item_list if isValid(item)]
for item in grp.item_list:
print(item)
def testDelete(self):
obj = ObjectType()
child = ObjectType(obj)
self.assertTrue(shiboken.isValid(obj))
self.assertTrue(shiboken.isValid(child))
# Note: this test doesn't assure that the object dtor was really called
shiboken.delete(obj)
self.assertFalse(shiboken.isValid(obj))
self.assertFalse(shiboken.isValid(child))
def testIsValid(self):
self.assertTrue(shiboken.isValid(object()))
self.assertTrue(shiboken.isValid(None))
bb = BlackBox()
item = ObjectType()
ticket = bb.keepObjectType(item)
bb.disposeObjectType(ticket)
self.assertFalse(shiboken.isValid(item))
def testDelete(self):
obj = ObjectType()
child = ObjectType(obj)
self.assertTrue(shiboken.isValid(obj))
self.assertTrue(shiboken.isValid(child))
# Note: this test doesn't assure that the object dtor was really called
shiboken.delete(obj)
self.assertFalse(shiboken.isValid(obj))
self.assertFalse(shiboken.isValid(child))
def onThreadOutput(text):
if not shiboken.isValid(ui) or not shiboken.isValid(ui.progressText): return
ui.progressText.moveCursor(QTextCursor.End)
if text[0] == "\r":
#cursor = QTextCursor(ui.progressText.textCursor())
ui.progressText.moveCursor(QTextCursor.StartOfLine, QTextCursor.KeepAnchor)
ui.progressText.moveCursor(QTextCursor.PreviousCharacter, QTextCursor.KeepAnchor)
ui.progressText.insertHtml(text.replace('\n', '<br />'))
def _read_from_capture(self):
if self._is_stopped.isSet():
return
ret, frame = self.read()
if ret and shiboken2.isValid(self):
self.readFinished.emit(frame.copy())
def testNonCppWrapperClassDelete(self):
"""Would segfault when shiboken.delete called on obj not created from
Python """
obj = sample.ObjectType()
child = obj.createChild(None)
shiboken.delete(child)
assert not shiboken.isValid(child)
def testNonCppWrapperClassDelete(self):
"""Would segfault when shiboken.delete called on obj not created from
Python """
obj = sample.ObjectType()
child = obj.createChild(None)
shiboken.delete(child)
assert not shiboken.isValid(child)
def _addGraphView(self, subConfig):
g = subConfig.getGraph()
# remove already deleted graph views from internal list
valid_graphViews = []
for gv in self._graphViews:
if shiboken2.isValid(gv): # pylint: disable=no-member
valid_graphViews.append(gv)
self._graphViews = valid_graphViews
# check if graph view is already there
for gv in self._graphViews:
if gv.widget().scene().graph == g:
logger.info("Graph view already exists.")
return
# create new graph view
srv = Services.getService("MainWindow")
graphDw = srv.newDockWidget("Graph (%s)" % (subConfig.getName()),
parent=None,
defaultArea=Qt.RightDockWidgetArea,
allowedArea=Qt.RightDockWidgetArea
| Qt.BottomDockWidgetArea)
graphDw.setAttribute(Qt.WA_DeleteOnClose, True)
assert isinstance(graphDw, QDockWidget)
graphView = GraphEditorView(graphDw)
graphView.setScene(GraphScene(subConfig.getGraph(), graphDw))
graphDw.setWidget(graphView)
self._graphViews.append(graphDw)
graphDw.visibleChanged.connect(self._removeGraphViewFromList)
def isValidQtObject(obj):
"""
Does the Python object given contain a valid Qt reference pointer?
Only supports host 'maya'.
:param obj: Qt class object.
:returns: Is the given object valid in C++?
:rtype: bool
"""
v = None
host = getHostApplication()
if host == 'standalone':
raise NotImplementedError
elif host == 'maya':
try:
from shiboken2 import isValid
except ImportError:
from shiboken import isValid
v = isValid(obj)
else:
raise NotImplementedError
assert isinstance(v, bool) is True
return v
def items(self):
remove = []
for item in self.itemList:
if not shiboken2.isValid(item):
remove.append(item)
[self.itemList.remove(r) for r in remove]
return self.itemList
def eventFilter(self, obj, event):
if obj.isWidgetType() and event.type() == QEvent.MouseButtonPress \
and self.target in obj.window().findChildren(QWidget) \
and self.target.underMouse() and not self.target.isEnabled():
self.dispatch()
obj.setFocus()
if shiboken is not None and not shiboken.isValid(obj):
return False
return super().eventFilter(obj, event)
def for_loop_files(paths, interval=100, parent=None, objectName=""):
timer = QtCore.QTimer(parent=parent, singleShot=True, interval=interval)
if objectName:
timer.setObjectName(objectName)
loop = QtCore.QEventLoop(timer)
timer.timeout.connect(loop.quit)
timer.destroyed.connect(loop.quit)
for path in paths:
if shiboken2.isValid(timer):
timer.start()
loop.exec_()
yield path
def deleteChild(self, name):
"""
Remove a child collection.
:param name: the name of the collection.
:return: None
"""
assertMainThread()
cc = self.getChildCollection(name)
for c in cc.children():
if isinstance(c, PropertyCollectionImpl):
cc.deleteChild(c.objectName())
if shiboken2.isValid(cc): # pylint: disable=no-member
shiboken2.delete(cc) # pylint: disable=no-member
def kitsuInit(self):
if shiboken2.isValid(self.loadL):
self.loadL.hide()
if self.session == -1:
nuke.message("Please login to kitsu.")
elif self.session == -2:
nuke.message(
"Your kitsu account does not have the permission to create shots."
)
elif self.session:
self.session.onPostedComment[str].connect(self.onPostResult)
self.loadProjects()
self.loadTasks()
def update(self):
"""
Called periodically to synchronize model with added log records
:return: None
"""
assertMainThread()
if not shiboken2.isValid(self): # pylint: disable=no-member
return
if not self.queue.empty():
self._model.update(self.queue)
if self.follow:
self.scrollToBottom()
def getWidgetByName(name):
hasHandle = hasattr(hou.session, name)
if not hasHandle or (hasHandle and getattr(hou.session, name) and
not shiboken2.isValid(getattr(hou.session, name))):
allWidgets = QtWidgets.QApplication.allWidgets()
for w in allWidgets:
if name in w.windowTitle():
setattr(hou.session, name, w)
break
if not hasattr(hou.session, name):
return None
return getattr(hou.session, name)
def _dereferenceItem(self, item):
# Ask for object deletion if parented to the model
if shiboken2.isValid(item) and item.parent() == self:
# delay deletion until the next event loop
# This avoids warnings when the QML engine tries to evaluate (but should not)
# an object that has already been deleted
self.requestDeletion.emit(item)
if not self._keyAttrName:
return
key = getattr(item, self._keyAttrName, None)
if key is None:
return
assert key in self._objectByKey
del self._objectByKey[key]
def isObjectValid(objectToTestObjIn):
"""
Determine if `objectToTestObjIn` is valid
Args:
objectToTestObjIn (obj): Object to test
Returns:
(bool): Is the object valid
"""
if Qt.IsPySide:
import shiboken
return shiboken.isValid(objectToTestObjIn)
elif Qt.IsPySide2:
import shiboken2
return shiboken2.isValid(objectToTestObjIn)
def isValidQtObject(obj):
"""
Does a Python object contain a valid Qt reference pointer?
"""
v = None
host = getHostApplication()
if host == 'standalone':
raise NotImplementedError
elif host == 'maya':
try:
from shiboken2 import isValid
except ImportError:
from shiboken import isValid
v = isValid(obj)
else:
raise NotImplementedError
assert isinstance(v, bool) is True
return v
def is_valid_widget(widget):
"""
Checks if a widget is a valid in the backend
:param widget: QWidget
:return: bool, True if the widget still has a C++ object, False otherwise
"""
if widget is None:
return False
# Added try because Houdini does not includes Shiboken library by default
# TODO: When Houdini app class implemented, add cleaner way
try:
if not shiboken.isValid(widget):
return False
except Exception:
return True
return True
def is_deleted(obj) -> bool:
if qt.API == "pyside2":
import shiboken2
return not shiboken2.isValid(obj)
elif qt.API == "pyside6":
import shiboken6
return not shiboken6.isValid(obj)
elif qt.API == "pyqt5":
try:
from PyQt5 import sip
except ImportError:
import sip # type: ignore[import, no-redef]
return sip.isdeleted(obj)
else:
try:
from PyQt6 import sip
except ImportError:
import sip # type: ignore[import, no-redef]
return sip.isdeleted(obj)
def for_loop_files(path, interval=100, extensions=(), parent=None, objectName=""):
timer = QtCore.QTimer(parent=parent, singleShot=True, interval=interval)
if objectName:
timer.setObjectName(objectName)
loop = QtCore.QEventLoop(timer)
timer.timeout.connect(loop.quit)
timer.destroyed.connect(loop.quit)
for root, dirs, files in os.walk(path):
# print(files)
for name in files:
base, ext = os.path.splitext(name)
# print(ext)
if extensions:
if ext in extensions:
print(extensions)
if shiboken2.isValid(timer):
timer.start()
loop.exec_()
yield os.path.join(root, name)
else:
yield os.path.join(root, name)
def _isdeleted(obj):
return not shiboken2.isValid(obj)
def safeDelete(obj: QObject) -> None:
""" Calls deleteLater() on a QObject, doing nothing if the object was already deleted """
if obj and shiboken2.isValid(obj):
obj.deleteLater()
def testClear(self):
model = QStandardItemModel()
root = model.invisibleRootItem()
model.clear()
self.assertFalse(shiboken.isValid(root))
def _is_valid(obj):
if not shbkn.isValid(obj):
txm.txm_log().warning('%r IS INVALID !!', obj)
return False
return True
def getIsPointerValid(widget):
return shiboken.isValid(widget)
def is_object_deleted(widget_obj):
"""
checks if the object is deleted.
:return: <bool> True for yes. <bool> False for no.
"""
return isValid(widget_obj)
