def notify(self, obj: Qt.QObject, event: Qt.QEvent) -> bool:
import sys
isex = False
try:
self.enter_count += 1
ret, time = cast(
Tuple[bool, float],
measure_exec_time_ms(Qt.QApplication.notify, True,
False)(self, obj, event))
if (type(event).__name__ == 'QEvent'
and event.type() in qevent_info):
event_name = qevent_info[event.type()][0]
else:
event_name = type(event).__name__
try:
obj_name = obj.objectName()
except RuntimeError:
obj_name = ''
if obj_name == '':
try:
if (obj.parent() is not None
and obj.parent().objectName() != ''):
obj_name = '(parent) ' + obj.parent().objectName()
except RuntimeError:
pass
recursive_indent = 2 * (self.enter_count - 1)
print(
f'{time:7.3f} ms, receiver: {type(obj).__name__:>25}, event: {event.type():3d} {" " * recursive_indent + event_name:<30}, name: {obj_name}'
)
self.enter_count -= 1
return ret
except Exception: # pylint: disable=broad-except
isex = True
logging.error('Application: unexpected error')
print(*sys.exc_info())
return False
finally:
if isex:
self.quit()
object5 = QObject()
object1.setParent(object0) # setParent设置对象的父类
object2.setParent(object0)
object3.setParent(object1)
object4.setParent(object1)
object5.setParent(object2)
print('objext0', object0)
print('objext1', object1)
print('objext2', object2)
print('objext3', object3)
print('objext4', object4)
print('objext5', object5)
print('objext1 parent ', object1.parent()) # object1.parent()返回object1的父类
print('objext5 parent ', object5.parent())
print(object0.findChild(object)) #返回一个子类
object2.setObjectName('b')
print(object0.findChild(object, 'b')) #返回一个ObjectName为b的子类
object3.setObjectName('n')
print(object0.findChild(object, 'n'))
print(object0.findChild(object, 'n', Qt.FindDirectChildrenOnly)) #只查找直接继承的子类
print(object0.findChildren(object)) #返回所有子类
#当父类删除时，其子类也被删除，释放内存
