def setUpMainWindow(self):
        """Set up the GUI's main window."""
        header_label = QLabel("List of Users")

        # Create model and table objects
        model = QStandardItemModel()
        model.setColumnCount(3)
        model.setHorizontalHeaderLabels(["Name", "Birthdate", "Actions"])

        table_view = QTableView()
        table_view.setEditTriggers(
            QAbstractItemView.EditTrigger.NoEditTriggers)
        # NOTE: Uncomment for table cells to be unselectable
        #table_view.setSelectionMode(QAbstractItemView.SelectionMode.NoSelection)
        table_view.setModel(model)
        table_view.horizontalHeader().setSectionResizeMode(
            0, QHeaderView.ResizeMode.Stretch)

        names_list = ["Willman, Joshua", "Davis, Scott", "Garcia, Sky"]

        # Add items to each row in the table by looping over
        # the names_list and adding the date edit and button widgets
        for row, name in enumerate(names_list):
            model.setItem(row, QStandardItem(name))
            # Setting the widget at an index in a QTableView involves
            # acquiring the QModelIndex values of the current position.
            # One way to do this is to use the QAbstractItemModel.sibling()
            # method to retrieve the QModelIndex index from the specified
            # row and column (here the column is 1)
            index = table_view.model().sibling(row, 1, QModelIndex())
            date_edit = QDateEdit(QDate.currentDate(
            ))  # Create QDateEdit object that starts at current date
            date_edit.setDateRange(QDate(1900, 1, 1), QDate.currentDate())
            date_edit.setDisplayFormat("MM/dd/yyyy")
            date_edit.setAlignment(
                Qt.AlignmentFlag.AlignRight)  # Align the text
            date_edit.setAutoFillBackground(True)
            table_view.setIndexWidget(index, date_edit)
            # Set the widgets in the final column for each row
            index = table_view.model().sibling(row, 2, QModelIndex())
            table_view.setIndexWidget(index, EditCellWidget(table_view))

        # Set up main layout and container object for main window
        main_v_box = QVBoxLayout()
        main_v_box.addWidget(header_label)
        main_v_box.addWidget(table_view)

        container = QWidget()
        container.setLayout(main_v_box)
        self.setCentralWidget(container)
    def setUpMainWindow(self):
        """Set up the GUI's main window."""
        header_label = QLabel("List of Users")

        # Create model and table objects
        model = QStandardItemModel()
        model.setColumnCount(3)
        model.setHorizontalHeaderLabels(["Name", "Birthdate", "Actions"])

        table_view = QTableView()
        # NOTE: setEditTriggers() is not used so that the user
        # can double-click and edit cells
        table_view.setModel(model)
        table_view.horizontalHeader().setSectionResizeMode(
            0, QHeaderView.ResizeMode.Stretch)
        # Set the item delegate for a specific column, in this case column 1
        table_view.setItemDelegateForColumn(1, DateEditDelegate())

        names_list = ["Willman, Joshua", "Davis, Scott", "Garcia, Sky"]

        # Add items to each row in the table by looping over
        # the names_list and adding the date edit and button widgets
        for row, name in enumerate(names_list):
            model.setItem(row, QStandardItem(name))
            # Create an item and set the initial value for the second column.
            # Here the QDate values are converted to strings to make it easier
            # to align the text without having to subclass a model class
            date_item = QStandardItem(
                QDate.currentDate().toString("MM/dd/yyyy"))
            date_item.setTextAlignment(Qt.AlignmentFlag.AlignVCenter
                                       | Qt.AlignmentFlag.AlignRight)
            model.setItem(row, 1, date_item)
            # Set the widgets in the final column for each row
            index = model.index(row, 2, QModelIndex())
            table_view.setIndexWidget(index, EditCellWidget(table_view))

        # Set up main layout and container object for main window
        main_v_box = QVBoxLayout()
        main_v_box.addWidget(header_label)
        main_v_box.addWidget(table_view)

        container = QWidget()
        container.setLayout(main_v_box)
        self.setCentralWidget(container)