PyQt5 QSpinBox - Getting Stretch factor

Last Updated : 22 May, 2020

In this article we will see how we can set the stretch factor to the text of the spin box, stretching of text means expanding of text without changing their height only increasing their width. We can change the stretch factor with the help of setStretch method. The minimum stretch factor is 1, and the maximum stretch factor is 4000 In order to do this we use stretch method with the QFont object of the spin box.

Syntax : font.stretch() Argument : It takes no argument Return : It returns integer

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 range to the spin box
        self.spin.setRange(0, 999999)

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

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

        # getting font of the spin box
        font = self.spin.font()

        # setting stretch factor
        font.setStretch(200)

        # reassigning this font to the spin box
        self.spin.setFont(font)

        # creating a label
        label = QLabel(self)

        # setting geometry to the label
        label.setGeometry(100, 200, 300, 60)

        # getting stretch factor
        s_factor = font.stretch()

        # setting text to the label
        label.setText("Stretch Factor : " + str(s_factor))


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

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

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