ListView problem with c++ model

[nick85]

FieldListModel::FieldListModel(IndexedFieldContainer * fieldContainer)
{
    _fieldContainer = fieldContainer;
 
    QHash<int, QByteArray> roles;
    roles[NameRole] = "name";
    roles[ValueRole] = "value";
    roles[DescriptionRole] = "description";
    setRoleNames(roles);
 
    IndexedFieldContainer::Iterator it = _fieldContainer->begin();
    for ( ; it != _fieldContainer->end(); ++it )
    {
        QObject::connect((*it), SIGNAL(fieldValueChanged(int)),
                         this, SLOT(fieldCurrentValueChanged(int)));
    }
}
 
QVariant FieldListModel::data(const QModelIndex & index, int role) const
{
    if ( !index.isValid() )
        return QVariant();
 
    if (index.row() < 0 || index.row() > _fieldContainer->count())
    {
        return QVariant();
    }
 
    DataModelBasicField * field = _fieldContainer->at(index.row());
 
    switch ( role )
    {
        case NameRole:
            return field->getName();
            break;
        case ValueRole:
            return field->toString();
            break;
        case DescriptionRole:
            return field->getDescription();
            break;
        default:
            return QVariant();
    }
 
    return QVariant();
}
 
int FieldListModel::rowCount(const QModelIndex & /* parent*/ ) const
{
    return _fieldContainer->count();
}
 
void FieldListModel::fieldCurrentValueChanged(int listIndex)
{
    QModelIndex index = createIndex(listIndex, listIndex);
    dataChanged(index,index);
}

FieldListModel::FieldListModel(IndexedFieldContainer * fieldContainer)
{
    _fieldContainer = fieldContainer;

    QHash<int, QByteArray> roles;
    roles[NameRole] = "name";
    roles[ValueRole] = "value";
    roles[DescriptionRole] = "description";
    setRoleNames(roles);

    IndexedFieldContainer::Iterator it = _fieldContainer->begin();
    for ( ; it != _fieldContainer->end(); ++it )
    {
        QObject::connect((*it), SIGNAL(fieldValueChanged(int)),
                         this, SLOT(fieldCurrentValueChanged(int)));
    }
}

QVariant FieldListModel::data(const QModelIndex & index, int role) const
{
    if ( !index.isValid() )
        return QVariant();

    if (index.row() < 0 || index.row() > _fieldContainer->count())
    {
        return QVariant();
    }

    DataModelBasicField * field = _fieldContainer->at(index.row());

    switch ( role )
    {
        case NameRole:
            return field->getName();
            break;
        case ValueRole:
            return field->toString();
            break;
        case DescriptionRole:
            return field->getDescription();
            break;
        default:
            return QVariant();
    }

    return QVariant();
}

int FieldListModel::rowCount(const QModelIndex & /* parent*/ ) const
{
    return _fieldContainer->count();
}

void FieldListModel::fieldCurrentValueChanged(int listIndex)
{
    QModelIndex index = createIndex(listIndex, listIndex);
    dataChanged(index,index);
}

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Do you need other things?

edit:

typedef QHash<QString, DataModelBasicField*> FieldContainer;
typedef QVector<DataModelBasicField*> IndexedFieldContainer;

typedef QHash<QString, DataModelBasicField*> FieldContainer;
typedef QVector<DataModelBasicField*> IndexedFieldContainer;

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[wysota]

What about setData(), insertRows(), etc.?