PyQt5标签 – 访问阴影的偏移量

在这篇文章中，我们将看到如何访问标签阴影的偏移量，偏移量基本上是标签的阴影和标签之间的距离，默认的偏移量是8，尽管我们可以在setOffset方法的帮助下随时改变它。

为了做到这一点，我们使用offset方法

语法： shadow.offset()

这里shadow是QGraphicsDropShadowEffect对象。

参数： 它不需要参数

返回： 它返回QPointF对象作为参数。

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 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(20)
  
        # setting offset
        shadow.setOffset(100)
  
        # adding shadow to the label
        label.setGraphicsEffect(shadow)
  
        # creating label 
        result = QLabel(self)
  
        # setting geometry
        result.setGeometry(100, 200, 350, 30)
  
        # getting shadow offset
        offset = shadow.offset()
  
        # showing text through label
        result.setText("Offset : " + str(offset))
  
  
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
# start the app
sys.exit(App.exec())

输出 :

PyQt5标签 - 访问阴影的偏移量