PyQt5 QSpinBox – Adding background image to down arrow for multiple states

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In this article we will see how we can set background image to the spin box’s up arrow for its various states. Spin box has two child one is the line edit and other are the up and down button. Up arrow is the internal component of the up button, up arrow is the place arrow displayed, there are basically three states of this one is normal state, second is the hover state i.e when cursor is on the down button and third is the pressed state. In order to do this we have to change the style sheet associated with the spin box, below is the style sheet code

QSpinBox::up-arrow
{
background-image : url(image1.png);
}
QSpinBox::up-arrow:hover
{
background-image : url(image2.png);
}
QSpinBox::up-arrow:pressed
{
background-image : url(image3.png);
}

This will add three different background image for each state of the up arrow, there are also some additional states like anti-hover (!hover) and anti-pressed(!pressed) these are opposite of hover and pressed state respectively. 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, 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, 9999)
 
        # setting prefix to spin
        self.spin.setPrefix("PREFIX ")
 
        # setting suffix to spin
        self.spin.setSuffix(" SUFFIX")
 
        # setting style sheet
        # adding background image to up arrow
        # adding background image to up arrow
        # for hover and pressed state
        self.spin.setStyleSheet("QSpinBox::up-arrow"
                                "{"
                                "background-image : url(image.png);"
                                "}"
                                "QSpinBox::up-arrow:hover"
                                "{"
                                "background-image : url(skin.png);"
                                "}"
                                "QSpinBox::up-arrow:pressed"
                                "{"
                                "background-image : url(logo.png);"
                                "}"
                                )
 
 
# create pyqt5 app
App = QApplication(sys.argv)
 
# create the instance of our Window
window = Window()
 
# start the app
sys.exit(App.exec())