How to add checkable QComboBox in a QTableWidget header

[Piyush]

Hi,

I want to add a dynamic checkable QComboBox in QTableWdiget header. The QTableWidget contains data which updates frequently on certain logic. So, the checkable combobox should show updated value in it. Can somebody please help?

[VRonin]

You'll have to reimplement QHeaderView and then call QTableWdiget::setVerticalHeader/QTableWdiget::setHorizontalHeader to apply it to the table

[Piyush]

I am bit new to PyQt. I tried implementing it in the following way. However, I cannot add QComboBox in the header. But we surely can add text and format background colour.

I guess implementing QHeaderView is mandatory, like you mentioned. Could you please share a code snippet of how I can achieve this?

import sys
from PyQt5 import QtGui, QtWidgets

class MyFrame(QtWidgets.QFrame):
    def __init__(self, parent=None,initials=None):
        QtWidgets.QFrame.__init__(self, parent)
        self.table = QtWidgets.QTableWidget(5,3,self)
        self.table.move(30,30)
        self.table.resize(400,300)
        self.combo_counterp = ['a', 'b', 'c', 'd']
        combobox_counterp = QtWidgets.QComboBox()
        
        for val in self.combo_counterp:
            combobox_counterp.addItem(val)
         
        item1 = QtWidgets.QTableWidgetItem(self.table.setCellWidget(-1,-1,combobox_counterp))
        item1.setBackground(QtGui.QColor(255, 0, 0))
        
        self.table.setHorizontalHeaderItem(0,item1)

        item2 = QtWidgets.QTableWidgetItem('green')
        item2.setBackground(QtGui.QColor(0, 255, 0))
        self.table.setHorizontalHeaderItem(1,item2)

if __name__ == '__main__':
    app = QtWidgets.QApplication.instance()
    if app is None:
        app = QtWidgets.QApplication(sys.argv)
    app.aboutToQuit.connect(app.deleteLater)
    app.setStyle(QtWidgets.QStyleFactory.create('Fusion')) # won't work on windows style.
    Frame = MyFrame(None)
    Frame.resize(500,400)
    Frame.show()
    app.exec_()