In this article we will see how we can implement the timer event for the QCalendarWidget. A timer event is sent to the calendar when the calendars startTimer interval is over. This event handler can be reimplemented in a subclass to receive calendar startTimer 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 timer event # this will show the next month def timerEvent(self, event): # show the next month window.calendar.showNextMonth()
Implementation steps:
1. Create a Calendar class that inherits the QCalendarWidget
2. Inside the Calendar class override the timerEvent and inside the event show the next month of calendar
3. Create a main window class
4. Create a Calendar object inside the main window
5. Set various properties to the calendar
Below is the implementation
Python3
# 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 timer event # this will show the next month def timerEvent( self , event): # show the next month window.calendar.showNextMonth() 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) # starting the calendar timer # passing 1000 milliseconds as parameter timer_id = self .calendar.startTimer( 1000 ) # create pyqt5 app App = QApplication(sys.argv) # create the instance of our Window window = Window() # start the app sys.exit(App. exec ()) |
Output :