In this article we will see how we can set style sheet to the QScrollBar. QScrollBar is a control that enables the user to access parts of a document that is larger than the widget used to display it. Slider is the scroll-able object inside the bar. Style sheet is the properties which are used to make the appearance better i.e by creating customized design.
In order to do this we will use setStyleSheet method with the scroll bar object. Syntax : scroll.setStyleSheet(sheet) Argument : It takes string as argument Return : It returns None
Below is the example style sheet code
QScrollBar { background : lightgreen; } QScrollBar::handle { background : pink; } QScrollBar::handle::pressed { background : red; }
Below is the implementation
# 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 , 500 , 400 )
# calling method
self .UiComponents()
# showing all the widgets
self .show()
# method for components
def UiComponents( self ):
scroll = QScrollBar( self )
# setting geometry of the scroll bar
scroll.setGeometry( 100 , 50 , 30 , 200 )
# setting style sheet
scroll.setStyleSheet("QScrollBar"
"{"
"background : lightgreen;"
"}"
"QScrollBar::handle"
"{"
"background : pink;"
"}"
"QScrollBar::handle::pressed"
"{"
"background : red;"
"}"
)
# creating a label
label = QLabel("GeeksforGeeks", self )
# setting geometry to the label
label.setGeometry( 200 , 100 , 300 , 80 )
# making label multi line
label.setWordWrap( True )
# getting value changed signal
scroll.valueChanged.connect( lambda : do_action())
# method called when signal is emitted
def do_action():
# setting text to the label
label.setText("Current Value : " + str (scroll.value()))
# create pyqt5 app App = QApplication(sys.argv)
# create the instance of our Window window = Window()
# start the app sys.exit(App. exec ())
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Output :