cant read data from my model of QIdentityProxyModel

[KillGabio]

I modified the code, now it paints red the values i want but i cant change the font because i cant feth the value:

QVariant MyModelView::data(const QModelIndex &proxyIndex, int role) const{
    if (role == Qt::BackgroundRole && proxyIndex.column()==1){
        int value= proxyIndex.model()->data(proxyIndex.model()->index(proxyIndex.row(),1),Qt::DisplayRole).toInt();
        if (value < 6){
            //proxyIndex.model()->setData(proxyIndex.model()->index(proxyIndex.row(),0), QFont("Courier", 8, QFont::Bold, true), Qt::FontRole);
            return QBrush(Qt::red);
        }
    }
    /*if (role == Qt::FontRole && proxyIndex.column()==0){
        int value= proxyIndex.model()->data(proxyIndex.model()->index(proxyIndex.row(),1),Qt::DisplayRole).toInt();
        if (value < 6){
            return QFont("Courier", 8, QFont::Bold, true);
        }
    }*/
    return QIdentityProxyModel::data(proxyIndex, role);
}

QVariant MyModelView::data(const QModelIndex &proxyIndex, int role) const{
    if (role == Qt::BackgroundRole && proxyIndex.column()==1){
        int value= proxyIndex.model()->data(proxyIndex.model()->index(proxyIndex.row(),1),Qt::DisplayRole).toInt();
        if (value < 6){
            //proxyIndex.model()->setData(proxyIndex.model()->index(proxyIndex.row(),0), QFont("Courier", 8, QFont::Bold, true), Qt::FontRole);
            return QBrush(Qt::red);
        }
    }
    /*if (role == Qt::FontRole && proxyIndex.column()==0){
        int value= proxyIndex.model()->data(proxyIndex.model()->index(proxyIndex.row(),1),Qt::DisplayRole).toInt();
        if (value < 6){
            return QFont("Courier", 8, QFont::Bold, true);
        }
    }*/
    return QIdentityProxyModel::data(proxyIndex, role);
}

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(I want to make the commented "if" to work ->when executed it throws segmentation faul)

[Santosh Reddy]

try this

QVariant data(const QModelIndex & proxyIndex, int role) const
{
    if((role == Qt::BackgroundRole) && (proxyIndex.column() == 1))
    {
        int value = QIdentityProxyModel::data(index(proxyIndex.row(), 1), Qt::DisplayRole).toInt();
        if(value < 6)
            return QBrush(Qt::red);
    }
 
    if((role == Qt::FontRole) && (proxyIndex.column() == 0))
    {
        int value = QIdentityProxyModel::data(index(proxyIndex.row(), 1), Qt::DisplayRole).toInt();
        if(value < 6)
            return QFont("Courier", 8, QFont::Bold, true);
    }
 
    return QIdentityProxyModel::data(proxyIndex, role);
}

QVariant data(const QModelIndex & proxyIndex, int role) const
{
    if((role == Qt::BackgroundRole) && (proxyIndex.column() == 1))
    {
        int value = QIdentityProxyModel::data(index(proxyIndex.row(), 1), Qt::DisplayRole).toInt();
        if(value < 6)
            return QBrush(Qt::red);
    }

    if((role == Qt::FontRole) && (proxyIndex.column() == 0))
    {
        int value = QIdentityProxyModel::data(index(proxyIndex.row(), 1), Qt::DisplayRole).toInt();
        if(value < 6)
            return QFont("Courier", 8, QFont::Bold, true);
    }

    return QIdentityProxyModel::data(proxyIndex, role);
}

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[KillGabio]

If you were from Argentina, i d be yelling: "GROSOOOOO"