本文整理汇总了Python中PySide2.QtCore.QObject.installEventFilter方法的典型用法代码示例。如果您正苦于以下问题：Python QObject.installEventFilter方法的具体用法？Python QObject.installEventFilter怎么用？Python QObject.installEventFilter使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类PySide2.QtCore.QObject的用法示例。
在下文中一共展示了QObject.installEventFilter方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: testRefCount
# 需要导入模块: from PySide2.QtCore import QObject [as 别名]
# 或者: from PySide2.QtCore.QObject import installEventFilter [as 别名]
def testRefCount(self):
o = QObject()
filt = MyFilter()
o.installEventFilter(filt)
self.assertEqual(sys.getrefcount(o), 2)
o.installEventFilter(filt)
self.assertEqual(sys.getrefcount(o), 2)
o.removeEventFilter(filt)
self.assertEqual(sys.getrefcount(o), 2)示例2: testInstallEventFilterRefCountAfterDelete
# 需要导入模块: from PySide2.QtCore import QObject [as 别名]
# 或者: from PySide2.QtCore.QObject import installEventFilter [as 别名]
def testInstallEventFilterRefCountAfterDelete(self):
'''Bug 910 - installEventFilter() increments reference count on target object
http://bugs.pyside.org/show_bug.cgi?id=910'''
obj = QObject()
filt = QObject()
self.assertEqual(sys.getrefcount(obj), 2)
self.assertEqual(sys.getrefcount(filt), 2)
obj.installEventFilter(filt)
self.assertEqual(sys.getrefcount(obj), 2)
self.assertEqual(sys.getrefcount(filt), 2)
wref = weakref.ref(obj)
del obj
self.assertEqual(wref(), None)示例3: testInstallEventFilterRefCountAfterRemove
# 需要导入模块: from PySide2.QtCore import QObject [as 别名]
# 或者: from PySide2.QtCore.QObject import installEventFilter [as 别名]
def testInstallEventFilterRefCountAfterRemove(self):
# Bug 910
obj = QObject()
filt = QObject()
self.assertEqual(sys.getrefcount(obj), 2)
self.assertEqual(sys.getrefcount(filt), 2)
obj.installEventFilter(filt)
self.assertEqual(sys.getrefcount(obj), 2)
self.assertEqual(sys.getrefcount(filt), 2)
obj.removeEventFilter(filt)
self.assertEqual(sys.getrefcount(obj), 2)
self.assertEqual(sys.getrefcount(filt), 2)
wref = weakref.ref(obj)
del obj
self.assertEqual(wref(), None)