PyQt5 - 在关闭状态和鼠标悬停时将皮肤设置为组合框

在本文中，我们将了解如何在组合框处于关闭状态并将鼠标悬停在其上时为组合框设置外观。关闭状态基本上是列表视图部分未打开时。皮肤是根据组合框大小自行调整的背景图像。当组合框列表视图（项目视图）部分未打开且光标位于组合框上时，皮肤只会出现在组合框中。

为此，我们必须更改组合框的样式表代码，下面是样式表代码

QComboBox::!on:hover
{
border-image : url(image.png);
}

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 a check-able combo box object
        self.combo_box = QComboBox(self)
  
        # setting geometry of combo box
        self.combo_box.setGeometry(200, 150, 200, 80)
  
        # making combo box editable
        # self.combo_box.setEditable(True)
  
        # geek list
        geek_list = ["Sayian", "Super Sayian", "Super Sayian 2", "Super Sayian B"]
  
        # adding list of items to combo box
        self.combo_box.addItems(geek_list)
  
        # setting style sheet of combo box
        # adding skin to the combo box when it is in OFF state
        # and mouse hover over it
        self.combo_box.setStyleSheet("QComboBox::! on:hover"
                                     "{"
                                     "border-image : url(image.png);"
                                     "border : 1px solid black;"
                                     "}")
  
  
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
window.show()
  
# start the app
sys.exit(App.exec())

输出 ：