PyQt5 QColorDialog – 向其中添加额外的小部件

在本文中，我们将看到如何向 QColorDialog 添加额外的小部件。额外的小部件就像添加到颜色对话框的额外功能，它可以是标签按钮或其他任何东西，下面是额外小部件的外观

Implementation Steps: 
1. Create a main window class 
2. Inside the main window class create a QColorDialog object 
3. Add properties to the color dialog 
4. Create a label and set its properties 
5. Add this label to the layout of the dialog object 
6. Execute the dialog 
7. Delete the main window class
 

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 a QColorDialog object
        dialog = QColorDialog(self)
 
        # setting custom colors
        dialog.setCustomColor(1, Qt.red)
        dialog.setCustomColor(2, Qt.green)
        dialog.setCustomColor(3, Qt.yellow)
        dialog.setCustomColor(4, Qt.blue)
 
        # executing the dialog
        # dialog.exec_()
 
 
        # creating label
        label = QLabel("Geeks for Geeks", self)
 
        label.setAlignment(Qt.AlignCenter)
 
        # making label multi line
        label.setWordWrap(True)
 
        # setting stylesheet of the label
        label.setStyleSheet("QLabel"
                            "{"
                            "border : 5px solid black;"
                            "}")
 
 
        # getting the custom color
        color = dialog.customColor(4)
 
        # setting graphic effect to the label
        graphic = QGraphicsColorizeEffect(self)
 
        # setting color to the graphic
        graphic.setColor(color)
 
        # setting graphic to the label
        label.setGraphicsEffect(graphic)
 
        layout = dialog.layout()
 
        layout.addWidget(label)
 
        dialog.setLayout(layout)
 
        # getting dialog layout
        # value = dialog.layout()
 
        dialog.exec_()
 
        # setting text to the label
        # label.setText("Layout : " + str(value))
 
        self.deleteLater()
 
 
 
# create pyqt5 app
App = QApplication(sys.argv)
 
# create the instance of our Window
window = Window()
 
# start the app
sys.exit(App.exec())

输出 ：