PyQt5 QDockWidget - 获取图形效果对象

在本文中，我们将了解如何获取 QDockWidget 的图形效果对象。 QDockWidget 提供了停靠小部件的概念，也称为工具面板或实用程序窗口。停靠窗口是放置在 QMainWindow（原始窗口）中中央小部件周围的停靠小部件区域中的辅助窗口。图形效果可以是阴影、模糊、颜色甚至是自定义效果，用于使 Dock 小部件具有吸引力。默认没有图形效果，可以通过 setGraphicsEffect 方法设置。

In order to do this we will use graphicsEffect method with the dock widget object.
Syntax : dock.graphicsEffect()
Argument : It takes no argument
Return : It returns QGraphicEffect object

编程需要懂一点英语

下面是实现

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, 500, 400)
 
        # calling method
        self.UiComponents()
 
        # showing all the widgets
        self.show()
 
    # method for components
    def UiComponents(self):
 
        # creating dock widget
        dock = QDockWidget(self)
 
        # setting title to the dock widget
        dock.setWindowTitle("GfG Title")
 
        # creating a QWidget object
        widget = QWidget(self)
 
        # creating a vertical box layout
        layout = QVBoxLayout(self)
 
        # push button 1
        push1 = QPushButton("A", self)
 
        # push button 2
        push2 = QPushButton("B", self)
 
        # adding these buttons to the layout
        layout.addWidget(push1)
        layout.addWidget(push2)
 
        # setting the layout to the widget
        widget.setLayout(layout)
 
        # adding widget to the layout
        dock.setWidget(widget)
 
        # creating a label
        label = QLabel("GeesforGeeks", self)
 
        # setting geometry to the label
        label.setGeometry(100, 200, 300, 80)
 
        # making label multi line
        label.setWordWrap(True)
 
        # setting geometry tot he dock widget
        dock.setGeometry(100, 0, 200, 30)
 
 
        # color effect
        color = QGraphicsColorizeEffect(self)
 
        # setting green color to the effect
        color.setColor(Qt.darkGreen)
 
        # setting graphic effect to the dock
        dock.setGraphicsEffect(color)
 
        # getting graphic effect
        value = dock.graphicsEffect()
 
        # setting text to the label
        label.setText("Graphic Effect : " + str(value))
 
 
 
 
 
 
 
# create pyqt5 app
App = QApplication(sys.argv)
 
# create the instance of our Window
window = Window()
 
# start the app
sys.exit(App.exec())

输出：