MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent)
{
    MiTabla *tabla = new MiTabla;
    tabla->setModel(new MiModelo());
    tabla->setItemDelegate(new MiDelegado());
    selectionModel = tabla->selectionModel();
    setCentralWidget(tabla);
    QObject::connect(selectionModel,&QItemSelectionModel::selectionChanged,[=]()
    {
        foreach (const QModelIndex& item, selectionModel->selectedIndexes())
        {
            if (item.column()!=tabla->indiceActual().column())
            {
                selectionModel->select(item,QItemSelectionModel::Deselect);
            }
        }
    });
}

MiTabla::MiTabla()
{
    miSelectionModel = selectionModel();
    QObject::connect(this,SIGNAL(pressed(QModelIndex)),this,SLOT(CambiarIndiceACtual(QModelIndex)));

    QObject::connect(miSelectionModel,&QItemSelectionModel::selectionChanged,[=]()
    {
        foreach (const QModelIndex& item, miSelectionModel->selectedIndexes())
        {
            if (item.column()!=m_indiceActual.column())
            {
                miSelectionModel->select(item,QItemSelectionModel::Deselect);
            }
        }
    });
}