In this article we will see how we can add border to the up arrow when it get pressed, we know there exist two buttons up and down in spin box and up arrow is the internal part of the up button. Up arrow is the subset of up button and up button is sub set of spin box. By default there is no border to the up arrow although we can add it, customized border will only appear when it get pressed. In order to do this we have to change the style sheet code associated with the spin box, below is the style sheet code
QSpinBox::up-arrow:pressed { border : 4px solid red; }
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() # showwing 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 , 60 ) # setting prefix to spin self .spin.setPrefix("Prefix ") # setting suffix to spin self .spin.setSuffix(" Suffix") # setting style sheet to the spin box # adding border to the up button # adding border to the up arrow # and when it get pressed self .spin.setStyleSheet("QSpinBox::up - button" "{" "border : 3px solid lightgreen;" "}" "QSpinBox::up - arrow:pressed" "{" "border : 4px solid red;" "}") # create pyqt5 app App = QApplication(sys.argv) # create the instance of our Window window = Window() # start the app sys.exit(App. exec ()) |
Output :