one model for several viewings

[someralex]

Could somebody help me?
I have build a model based on QAbstractListModel with such inner structure:

QList <QPair<QString,QPair<QImage,QPair<QStringList,QStringList> > > > mainMap;

QList <QPair<QString,QPair<QImage,QPair<QStringList,QStringList> > > > mainMap;

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in data method of this model, I describe:

QVariant MainModel::data(const QModelIndex &index, int role) const 
{ 
    if (!index.isValid()) return QVariant(); 
    if (!index.row() >= mainMap.size()) return QVariant(); 
    if (role == Qt::DisplayRole) return mainMap.at(index.row()); 
        else return QVariant(); 
}

QVariant MainModel::data(const QModelIndex &index, int role) const 
{ 
    if (!index.isValid()) return QVariant(); 
    if (!index.row() >= mainMap.size()) return QVariant(); 
    if (role == Qt::DisplayRole) return mainMap.at(index.row()); 
        else return QVariant(); 
}

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In which method view (based on QAbstractItemView or QAbstractListView) I need to state what data from mainMap I need to use in order to show in view (for example, I need to show mainMap.at(index.row()).first in the first list, and mainMap.at(index.row()).second.second.first) in the second one)?