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PyQt5 Combo Box – Different border color to list view when mouse hover over it

  • Last Updated : 06 May, 2020

In this article we will see how we can set different border color to the list view of the combo box when mouse hover it, list view is the item view i.e where all the items are visible. When we press the down arrow of combo box list view is opened. We can change view object any time with the help of setView method.

There are two ways of doing this by creating our own view and changing the border of it then adding it to the combo box but it is the lengthy process as we have to add all the items to it and another way is to alter the style sheet of default view i.e list view.

Below is the stylesheet codes –
Code 1

QListView::hover
{
border : 8px solid;
border-color-top : red;
border-color-right : green;
border-color-bottom : blue;
border-color-left : yellow;
}

or

Code 2



QListView::hover
{
border : 5px solid;
border-color : red green blue yellow;
}

Below is the implementation




# 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, 150, 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
        # adding different border color to the list view when mouse hover
        self.combo_box.setStyleSheet("QListView"
                                     "{"
                                     "border : 8px solid black;"
                                     "}"
                                     "QListView::hover"
                                     "{"
                                     "border : 8px solid;"
                                     "border-color : red green blue yellow;"
                                     "}")
  
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
window.show()
  
# start the app
sys.exit(App.exec())

Output :

When list view is opened

When mouse hover over it

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