PyQt5 QCalendarWidget 获取信号阻塞状态

在这篇文章中，我们将看到如何检查与QCalendarWidget相关的信号是否处于阻断状态。有各种与日历相关的信号，如日期变化信号，页面变化信号等。行动只通过这些信号被添加到日历中。我们可以在blockSignals方法的帮助下屏蔽信号。

为了做到这一点，我们将使用QCalendarWidget对象的signalsBlocked方法。
语法： calendar.signalsBlocked()

参数： 它不需要参数

返回： 它返回bool

下面是实现

# importing libraries
from PyQt5.QtWidgets import *
from PyQt5 import QtCore, QtGui
from PyQt5.QtGui import *
from PyQt5.QtCore import *
import sys


class Window(QMainWindow):

    def __init__(self):
        super().__init__()

        # setting title
        self.setWindowTitle("Python ")

        # setting geometry
        self.setGeometry(100, 100, 600, 400)

        # calling method
        self.UiComponents()

        # showing all the widgets
        self.show()

    # method for components
    def UiComponents(self):

        # creating a QCalendarWidget object
        self.calendar = QCalendarWidget(self)

        # setting geometry to the calendar
        self.calendar.setGeometry(50, 10, 400, 250)

        # creating a label
        label = QLabel(self)

        # setting geometry
        label.setGeometry(120, 280, 200, 60)

        # making it multi line
        label.setWordWrap(True)

        # adding action to the calendar
        self.calendar.selectionChanged.connect(lambda: label.setText("Selection Changed Signal"))

        # adding action to the calendar
        self.calendar.currentPageChanged.connect(lambda: label.setText("Page Changed Signal"))

        # blocking the signals
        self.calendar.blockSignals(True)

        # getting signals blocked state
        value = self.calendar.signalsBlocked()

        # setting text to the label
        label.setText("Signals Blocked : " + str(value))



# create pyqt5 app
App = QApplication(sys.argv)

# create the instance of our Window
window = Window()


# start the app
sys.exit(App.exec())