In this article we will see how to set background color to an indicator of check box when it is in intermediate state. By default the check box have only two states although we can make a third state as well which is not checked or unchecked. It is inbetween, both of these states refer as intermediate state with the help of setTristate
method.
In order to add background color to indicator in intermediate state we have to change the style sheet of the indicator for intermediate state below is the style sheet code.
QCheckBox::indicator:indeterminate { background-color : blue; }
Note : In order to see this we have to make third state first without that it will not work.
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 class Window(QMainWindow): def __init__( self ): super ().__init__() # setting title self .setWindowTitle( "Python " ) # setting geometry self .setGeometry( 100 , 100 , 600 , 400 ) # calling method self .UiComponents() # showing all the widgets self .show() # method for widgets def UiComponents( self ): # creating the check-box checkbox = QCheckBox( 'Geek ?' , self ) # setting geometry of check box checkbox.setGeometry( 200 , 150 , 100 , 30 ) # creating tri-state check box checkbox.setTristate( True ) # adding background color to the indicator # when it is in intermediate state checkbox.setStyleSheet( "QCheckBox::indicator:indeterminate" "{" "background-color : blue;" "}" ) # create pyqt5 app App = QApplication(sys.argv) # create the instance of our Window window = Window() # start the app sys.exit(App. exec ()) |
Output :