In this article we will see how we can set the background role to the spin box, there are basically two types of roles in spin box one is foreground and the other one is background. Background role defines the brush from the spin box’s palette that is used to render the background. If no explicit background role is set, the spin box inherits its parent widget’s background role.
In order to do this we use setBackgroundRole method
Syntax : spin_box.setBackgroundRole(color_object)
Argument : It takes QPalette.ColorRole object argument
Return : It returns None
Below is the implementation
Python3
# importing librariesfrom PyQt5.QtWidgets import *from PyQt5 import QtCore, QtGuifrom PyQt5.QtGui import *from PyQt5.QtCore import *import sysclass 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") # making auto fill background of spin box self.spin.setAutoFillBackground(True) # setting background role self.spin.setBackgroundRole(QPalette.Base) # getting palette and setting color to the background to it p = self.spin.palette() p.setColor(self.spin.backgroundRole(), Qt.darkGray) self.spin.setPalette(p) # create pyqt5 appApp = QApplication(sys.argv)# create the instance of our Windowwindow = Window()# start the appsys.exit(App.exec()) |
Output :
