QAbstractListModel and icon problem

[mchrk]

Hello,

I have created QAbstractListModel in the data function I check for the DecorationRole and when that is passed to the function I check for the right column and return a pixmap but I can't get it to work

QVariant 
ResultModel::data(const QModelIndex& index, int role) const
{
    if(!index.isValid())
        return QVariant();
 
    if(Qt::DisplayRole != role)
        return QVariant();
 
    ResultItem item = fItems.at(index.row());
 
 
    if(Qt::DisplayRole == role)
    {    
        if(kColumnFileName == index.column())
            return item.file().fileName();
 
        if(kColumnExpectedChecksum == index.column())
            return item.expectedChecksum();
 
        if(kColumnCalculatedChecksum == index.column())
            return item.calculatedChecksum();
 
    }
 
    // does not work
    // 
    else if(Qt::DecorationRole == role)
    {
        TRACE("Decoration column: %d\n", index.column());
 
        if(kColumnStatus == index.column())
        {
            int status = item.status();
 
            TRACE("Choosing error: %d\n", status);
 
            if(ResultItem::kStatusOk == status)
                return QPixmap(":/images/ok.png");
        }
    }
 
    return QVariant();
}

QVariant 
ResultModel::data(const QModelIndex& index, int role) const
{
    if(!index.isValid())
        return QVariant();
        
    if(Qt::DisplayRole != role)
        return QVariant();
            
    ResultItem item = fItems.at(index.row());
    
    
    if(Qt::DisplayRole == role)
    {    
        if(kColumnFileName == index.column())
            return item.file().fileName();
        
        if(kColumnExpectedChecksum == index.column())
            return item.expectedChecksum();
        
        if(kColumnCalculatedChecksum == index.column())
            return item.calculatedChecksum();
        
    }

    // does not work
    // 
    else if(Qt::DecorationRole == role)
    {
        TRACE("Decoration column: %d\n", index.column());
            
        if(kColumnStatus == index.column())
        {
            int status = item.status();
     
            TRACE("Choosing error: %d\n", status);
     
            if(ResultItem::kStatusOk == status)
                return QPixmap(":/images/ok.png");
        }
    }
    
    return QVariant();
}

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As you can see I print som trace message when the DecorationRole is suposed to run but I get nothing, it never runs. I know there isn't much info but what can I have done wrong?

[wysota]

Look at lines 6 and 7 of the snippet.

[mchrk]

Haha thank you, i feel so stupid right now