PyQt: How to set Combobox Items be Checkable?

Question

To keep the GUI widgets number to minimum I need to find a way to give to user a choice of pull-down menu items that could be used to filter out the displayed in a listWidge

Answer 1

(Not an answere to the question, hence I used most of the code from here)

I added a function and changed the name to RadioComboBox if anyone else wants to have a class for a RadioComboBox.

from PyQt4 import QtCore
from PyQt4.QtGui import QComboBox, QStandardItemModel


class RadioComboBox(QComboBox):
    def __init__(self):
        super(RadioComboBox, self).__init__()
        self.view().pressed.connect(self.handle_item_pressed)
        self.setModel(QStandardItemModel(self))

    def handle_item_pressed(self, index):
        item = self.model().itemFromIndex(index)
        target_row = item.index().row()
        if item.checkState() != QtCore.Qt.Checked:
            item.setCheckState(QtCore.Qt.Checked)
        self.check_others(target_row)

    def check_others(self, target_row):
        for i in range(self.model().rowCount()):
            if i == target_row:
                continue
            else:
                item = self.model().item(i)
                item.setCheckState(QtCore.Qt.Unchecked)