PyQt5 – Different curved Indicator corner in CheckBox

In this article we will see how to set different curves at the different corner of the indicator in check box, although with the help of changing radius we can make square indicator to round indicator.

Below is the representation of normal indicator vs the different curved indicator.

In order to this, we have to change the style sheet code of indicator and have to add different curves.

QCheckBox::indicator
{
border : 2px solid black; 
width : 20px;
height : 20px;
border-top-left-radius :10px;
border-top-right-radius : 1px; 
border-bottom-left-radius : 1px; 
border-bottom-right-radius : 11px
}

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 tristate check box
        checkbox.setTristate(True)

        # setting geometry of check box
        checkbox.setGeometry(200, 150, 100, 40)

        # adding border to the check box and padding
        # adding border to indicator and setting size
        # setting border radius for different corner
        checkbox.setStyleSheet("QCheckBox"
                               "{"
                               "border : 2px solid black;"
                               "padding : 10px;"
                               "}"
                               "QCheckBox::indicator"
                               "{"
                               "border : 2px solid black;"
                               "width : 20px;"
                               "height : 20px;"
                               "border-top-left-radius :10px;"
                               "border-top-right-radius : 1px; "
                               "border-bottom-left-radius : 1px; "
                               "border-bottom-right-radius : 11px"
                               "}")


# create pyqt5 app
App = QApplication(sys.argv)

# create the instance of our Window
window = Window()

# start the app
sys.exit(App.exec())

Output :