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
# importing libraries from PyQt5.QtWidgets import *
from PyQt5 import QtCore, QtGui
from PyQt5.QtGui import *
from PyQt5.QtCore import *
import sys
# 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" )
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 app App = QApplication(sys.argv)
# create the instance of our Window window = Window()
# start the app sys.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.