PyQt5标签–根据用户情况使阴影消失

在这篇文章中，我们将看到如何使阴影根据用户的需要而消失在标签上。当用户选中单选按钮时，阴影将显示并消失，当单选按钮未被选中时，阴影将出现。

为了做到这一点，我们使用setEnabled方法

语法： shadow.setEnabled(bool)

参数： 它需要bool作为参数

返回： 无

下面是实现方法

# 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 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
        self.shadow = QGraphicsDropShadowEffect()
 
        # setting blur radius
        self.shadow.setBlurRadius(30)
 
        # setting Xoffset
        self.shadow.setOffset(10)
 
        # adding shadow to the label
        label.setGraphicsEffect(self.shadow)
 
        # creating radio button
        self.button = QRadioButton("Hide Shadow", self)
 
        # setting geometry to the radio button
        self.button.setGeometry(200, 200, 100, 40)
 
        # adding action to the button
        self.button.clicked.connect(self.hide_shadow)
 
    def hide_shadow(self):
 
        if self.button.isChecked():
 
            # making shadow off
            self.shadow.setEnabled(False)
 
        else:
            # making shadow off
            self.shadow.setEnabled(True)
 
 
# create pyqt5 app
App = QApplication(sys.argv)
 
# create the instance of our Window
window = Window()
 
# start the app
sys.exit(App.exec())