PyQt5 Label – Accessing blur radius to shadow
In this article we will see how we can access the blur radius of the shadow of the label. The blur radius, if set to 0 the shadow will be sharp, the higher the number, the more blurred it will be, by default the blur radius is 0, we use setBlurRadius
method to set the blur radius
In order to access the blur radius of the shadow of label we use
blurRadius
methodSyntax : shadow.blurRadius(n)
Here shadow is the QGraphicsDropShadowEffect objectArgument : It takes no argument
Return : It returns float value
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 background color of window # self.setStyleSheet("background-color : black;") # 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 label label = QLabel( "Label" , self ) # setting alignment label.setAlignment(Qt.AlignCenter) # setting geometry to the label label.setGeometry( 200 , 100 , 150 , 60 ) # setting border label.setStyleSheet( "border : 8px solid black" ) # creating a QGraphicsDropShadowEffect object shadow = QGraphicsDropShadowEffect() # setting blur radius shadow.setBlurRadius( 15 ) # adding shadow to the label label.setGraphicsEffect(shadow) # creating label to show the blur radius result = QLabel( self ) # setting geometry result.setGeometry( 200 , 200 , 200 , 30 ) # getting blur radius b_radius = shadow.blurRadius() # showing text through label result.setText( "Blur Radius : " + str (b_radius)) # create pyqt5 app App = QApplication(sys.argv) # create the instance of our Window window = Window() # start the app sys.exit(App. exec ()) |
Output :