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📜  PyQt5 - 中间复选框的背景颜色

📅  最后修改于: 2022-05-13 01:55:25.969000             🧑  作者: Mango

PyQt5 - 中间复选框的背景颜色

在本文中,我们将看到如何在复选框处于中间状态时为复选框(即标签部分)设置颜色。我们可以为复选框设置背景颜色,但对于所有状态都将保持不变。中间状态是介于已检查和未检查状态之间的状态状态,它是借助setTristate方法创建的第三种状态。

为了设置中间状态的背景颜色,我们必须更改处于不确定(中间)状态的标签部分的样式表。下面是样式表代码。

QCheckBox::indeterminate
{
background-color : cyan;
}

下面是实现。

# 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 the check-box
        checkbox = QCheckBox('Geek ?', self)
  
        # setting tristate check box
        checkbox.setTristate(True)
  
        # setting geometry of check box
        checkbox.setGeometry(200, 150, 100, 30)
  
        # adding background color to the pressed check box label part
        # when it is in intermediate state
        checkbox.setStyleSheet("QCheckBox:indeterminate"
                               "{"
                               "background-color : cyan;"
                               "}")
  
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
# start the app
sys.exit(App.exec())

输出 :