In this article we will see how we can implement the action event for the QCalendarWidget. This event handler is called with the given event whenever the calendar’s actions are changed. This event handler can be reimplemented in a subclass to receive calendar actions events which are passed in the event parameter.
Below is the Calendar class code
# QCalendarWidget Class
class Calendar(QCalendarWidget):
# constructor
def __init__(self, parent=None):
super(Calendar, self).__init__(parent)
# overriding the actionEvent method
def actionEvent(self, event):
# printing the text
print("Action Changed")
Implementation steps:
1. Create a Calendar class that inherits the QCalendarWidget
2. Inside the Calendar class override the actionEvent and inside the event print the text
3. Create a main window class
4. Create a Calendar object inside the main window
5. Set various properties to the calendar
6. Add actions and delete the action of calendar
Below is the implementation
Python3
# importing librariesfrom PyQt5.QtWidgets import *from PyQt5 import QtCore, QtGuifrom PyQt5.QtGui import *from PyQt5.QtCore import *import sys# QCalendarWidget Classclass Calendar(QCalendarWidget): # constructor def __init__(self, parent = None): super(Calendar, self).__init__(parent) # overriding the actionEvent method def actionEvent(self, event): # printing the text print("Action Changed")class Window(QMainWindow): def __init__(self): super().__init__() # setting title self.setWindowTitle("Python ") # setting geometry self.setGeometry(100, 100, 650, 400) # calling method self.UiComponents() # showing all the widgets self.show() # method for components def UiComponents(self): # creating a QCalendarWidget object # as Calendar class inherits QCalendarWidget self.calendar = Calendar(self) # setting geometry to the calendar self.calendar.setGeometry(50, 10, 400, 250) # setting cursor self.calendar.setCursor(Qt.PointingHandCursor) # creating a QAction objects action1 = QAction("Geek", self) action2 = QAction("Python", self) # creating action list action_list = [action1, action2] # adding actions to calendar self.calendar.addActions(action_list) # removing action self.calendar.removeAction(action1) # creating label to show the properties self.label = QLabel(self) # setting geometry to the label self.label.setGeometry(100, 280, 300, 100) # making label multi line self.label.setWordWrap(True) # getting action of the calendar value = self.calendar.actions() # setting text to the label self.label.setText("Actions : " + str(value))# create pyqt5 appApp = QApplication(sys.argv)# create the instance of our Windowwindow = Window()# start the appsys.exit(App.exec()) |
Output :
Action Changed Action Changed Action Changed
“Action Changed” printed three times because two action are added and one action was deleted.
