In this article we will see how we can implement the change event for the QCalendarWidget. This event handler can be reimplemented to handle state changes. The state being changed in this event can be retrieved through the event supplied. State change can be the layout direction, language change etc.
Below is the Calendar class code
# QCalendarWidget Class class Calendar(QCalendarWidget): # constructor def __init__(self, parent=None): super(Calendar, self).__init__(parent) # overriding the changeEvent method def changeEvent(self, event): # setting text to the label print("Change Event Called")
Implementation steps:
1. Create a Calendar class that inherits the QCalendarWidget
2. Inside the Calendar class override the changeEvent 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. Change the direction of the 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 changeEvent method
def changeEvent( self , event):
# setting text to the label
print ( "Change Event Called" )
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)
# setting direction right to left
self .calendar.setLayoutDirection( 1 )
# create pyqt5 app App = QApplication(sys.argv)
# create the instance of our Window window = Window()
# start the app sys.exit(App. exec ())
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Output :
Change Event Called