PyQt5 – 鼠标悬停时为中间的复选框设置皮肤

在这篇文章中，我们将看到如何为处于中间状态的复选框设置皮肤，并将鼠标悬停在它上面。默认情况下，没有图像与复选框相关联，这个皮肤只在鼠标悬停在中间复选框时出现。中间（不确定）状态是介于选中和未选中状态之间的第三种状态，可以通过setTristate方法添加到复选框中。为了设置皮肤，我们必须使用复选框的样式表代码，下面是样式表代码。

QCheckBox::indeterminate::hover
{
border-image : url(image.png);
}

以下是实施情况。

# 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
        checkbox1 = QCheckBox('Geek ?', self)
 
        # setting geometry of check box
        checkbox1.setGeometry(200, 150, 100, 40)
 
        # setting tri-state check box
        checkbox1.setTristate(True)
 
        # changing style sheet code of check box
        # adding skin to indeterminate check box when mouse hover over it
        checkbox1.setStyleSheet("QCheckBox::indeterminate:hover"
                                "{"
                                "border-image : url(image.png);"
                                "}")
 
 
# create pyqt5 app
App = QApplication(sys.argv)
 
# create the instance of our Window
window = Window()
 
# start the app
sys.exit(App.exec())