Python 如何在PyQT中的类之间连接pyqtSignal
如何正确连接两个不同对象(类)之间的Python 如何在PyQT中的类之间连接pyqtSignal,python,pyqt,pyqt4,Python,Pyqt,Pyqt4,如何正确连接两个不同对象(类)之间的pyqtSignal?我指的是最佳实践 看看我为实现这个目标做了些什么:当Pot升高其温度时,温度计类会收到通知: from PyQt4 import QtCore class Pot(QtCore.QObject): temperatureRaisedSignal = QtCore.pyqtSignal() def __init__(self, parent=None): super(Pot, self).__init__
pyqtSignal
?我指的是最佳实践
看看我为实现这个目标做了些什么:当Pot
升高其温度时,温度计
类会收到通知:
from PyQt4 import QtCore
class Pot(QtCore.QObject):
temperatureRaisedSignal = QtCore.pyqtSignal()
def __init__(self, parent=None):
super(Pot, self).__init__(parent)
self.temperature = 1
def Boil(self):
self.temperature += 1
self.temperatureRaisedSignal.emit()
def RegisterSignal(self, obj):
self.temperatureRaisedSignal.connect(obj)
class Thermometer():
def __init__(self, pot):
self.pot = pot
self.pot.RegisterSignal(self.temperatureWarning)
def StartMeasure(self):
self.pot.Boil()
def temperatureWarning(self):
print("Too high temperature!")
if __name__ == '__main__':
pot = Pot()
th = Thermometer(pot)
th.StartMeasure()
或者有没有更简单/更好的方法
我还坚持(如果可能的话)使用“新”风格的PyQt信号
from PyQt4 import QtCore
class Pot(QtCore.QObject):
temperatureRaisedSignal = QtCore.pyqtSignal()
def __init__(self, parent=None):
QtCore.QObject.__init__(self)
self.temperature = 1
def Boil(self):
self.temperatureRaisedSignal.emit()
self.temperature += 1
class Thermometer():
def __init__(self, pot):
self.pot = pot
self.pot.temperatureRaisedSignal.connect(self.temperatureWarning)
def StartMeasure(self):
self.pot.Boil()
def temperatureWarning(self):
print("Too high temperature!")
if __name__ == '__main__':
pot = Pot()
th = Thermometer(pot)
th.StartMeasure()
根据文档,我会这样做: