PyQt5 QSpinBox - Getting base size

Last Updated : 17 May, 2020

In this article we will see how we can set the base size to the spin box, base size is used to calculate a proper spin box size if the spin box defines sizeIncrement. By default, for a newly-created spin box, this property contains a size with zero width and height.In order to set base size we use setBaseSize method. In order to get base size we use baseSize method.

Syntax : spin_box.baseSize() Argument : It takes no argument Return : It returns QSize object

Below is the implementation

Python3 1==

# 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 spin box
        self.spin = QSpinBox(self)

        # setting geometry to spin box
        self.spin.setGeometry(100, 100, 250, 40)

        # setting prefix to spin
        self.spin.setPrefix("Prefix ")

        # setting suffix to spin
        self.spin.setSuffix(" Suffix")

        # setting base size
        self.spin.setBaseSize(250, 40)

        # creating a label
        label = QLabel(self)

        # setting geometry to the label
        label.setGeometry(100, 200, 300, 30)

        # getting the base size
        base = self.baseSize()

        # setting text to the label
        label.setText(str(base))


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

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

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