PyQt5 QColorDialog – 改变字体

在这篇文章中，我们将看到如何改变QColorDialog的字体。字体是颜色对话框中文本的样式，即属性。

注意： 尽管对话框的大小是固定的，但增加字体的大小将增加对话框的大小。

为了做到这一点，我们使用QColorDialog对象的setFont方法。

语法： dialog.setFont(font)

参数： 它需要QFont对象作为参数。

返回： 它返回无。

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, 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)
  
        # font
        font = QFont('Times', 12)
  
        # setting font to the dialog
        dialog.setFont(font)
  
        # 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)
  
  
        dialog.exec_()
  
        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 :