有没有办法将QTableWidget中的整数数据显示为十六进制？

#include <QApplication>
#include <QTableWidget>
#include <QStyledItemDelegate>
#include <QLineEdit>

class HexDelegate : public QStyledItemDelegate
{
public:
    QWidget* createEditor(QWidget* parent, const QStyleOptionViewItem& option, const QModelIndex& index) const override
    {
        Q_UNUSED(option);
        Q_UNUSED(index);

        QLineEdit* editor = new QLineEdit(parent);
        editor->setValidator(new QRegExpValidator(QRegExp("[0-9A-Fa-f]+"), editor));
        return editor;
    }

    void setEditorData(QWidget* editor, const QModelIndex& index) const override
    {
        QString value = index.model()->data(index, Qt::EditRole).toString();
        QLineEdit* lineEdit = static_cast<QLineEdit*>(editor);
        lineEdit->setText(QString::number(value.toInt(), 16));
    }

    void setModelData(QWidget* editor, QAbstractItemModel* model, const QModelIndex& index) const override
    {
        QLineEdit* lineEdit = static_cast<QLineEdit*>(editor);
        QString value = lineEdit->text();
        model->setData(index, value.toInt(nullptr, 16), Qt::EditRole);
    }

    void paint(QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index) const override
    {
        QString value = index.model()->data(index, Qt::DisplayRole).toString();
        painter->drawText(option.rect, Qt::AlignCenter, QString::number(value.toInt(), 16));
    }
};

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);

    QTableWidget tableWidget(1, 1);
    tableWidget.setItemDelegate(new HexDelegate);
    tableWidget.setItem(0, 0, new QTableWidgetItem("255"));

    tableWidget.show();

    return a.exec();
}