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PyQt5 – Background image to non-editable ComboBox when mouse hover
  • Last Updated : 04 May, 2020

In this article we will see how we can set background image to the combo box when it is non-editable and mouse hover over it. By default combo box has no image although we can set image to it. Background image will appear only when combo box is in non-editable state and cursor is over the combo box. Normal combo box can be made editable wit the help of setEditable method.

In order to do this we have to change the style sheet associated with the combo box, below is the style sheet code

QComboBox::!editable:hover
{
background-image : url(image.png);
border : 2px solid black;
}

Below is the implementation –

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# 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)
  
        # making combo box editable
        # self.combo_box.setEditable(True)
  
        # setting geometry of combo box
        self.combo_box.setGeometry(200, 150, 200, 80)
  
        # 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 the combo box
        # adding background image to the combo box it is in non-editable state
        # and when mouse hover over it
        self.combo_box.setStyleSheet("QComboBox::! editable:hover"
                                     "{"
                                     "background-image : url(logo.png);"
                                     "border : 2px 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())

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Output :

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