PyQt5 – Background image to lineedit part of non-editable ComboBox when mouse hover

In this article we will see how we can set background image to the line edit part of the non-editable combo box when mouse hover over it. Line edit is the part of combo box which is used to see the selected text and edit the text. In order to set and get the line edit object of the combo box we use setLineEdit and lineEdit method.

Note : When we add line edit to the combo box it make the combo box editable therefore there is a need to make line edit non-editable.

In order to do this we have to do the following

1. Craete a combo box
2. Add items to the combo box
3. Create a QLineEdit object
4. Add background image to the QLineEdit object when mouse hover over it
5. Make the line edit object non editable
6. Add line edit object to the combo box

Syntax :



# creating line edit object
line_edit = QLineEdit()

# setting style sheet of line edit
# adding background image when mouse hover over it
line_edit.setStyleSheet("QLineEdit::hover"
                        "{"
                        "background-image : url(logo.png);"
                        "border : 2px solid black;"
                        "}")

# making line edit object non editable
line_edit.setReadOnly(True)

# adding line edit to the combo box
combo_box.setLineEdit(line_edit)

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)
  
        # creating line edit object
        line_edit = QLineEdit()
  
        # setting style sheet of line edit
        # adding background image when mouse hover over it
        line_edit.setStyleSheet("QLineEdit::hover"
                                "{"
                                "background-image : url(logo.png);"
                                "border : 2px solid black;"
                                "}")
          
        # making line edit object non editable
        line_edit.setReadOnly(True)
  
        # adding line edit to the combo box
        self.combo_box.setLineEdit(line_edit)
  
# 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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