In this article we will see how we can check if the QCalendarWidget is ancestor of the given widget or not. In order todo so we use isAncestorOf
method, this method returns true if the calendar is a parent, (or grandparent and so on to any level), of the given child, and both widgets are within the same window; otherwise returns false.
In order to do this we will use
isAncestorOf
method with the QCalendarWidget object.Syntax : calendar.isAncestorOf(query)
Argument : It takes QWidget object as argument
Return : It return bool
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
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
self .calendar = QCalendarWidget( self )
# setting geometry to the calendar
self .calendar.setGeometry( 50 , 10 , 400 , 250 )
# setting cursor
self .calendar.setCursor(Qt.PointingHandCursor)
# creating label to show the properties
self .label = QLabel( self )
# setting geometry to the label
self .label.setGeometry( 100 , 280 , 250 , 60 )
# making label multi line
self .label.setWordWrap( True )
# getting third child of the calendar
child = self .calendar.children()[ 3 ]
# checking if the calendar is ancestor of the child
value = self .calendar.isAncestorOf(child)
# setting text to the label
self .label.setText( "Ancestor ? : " + 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: