Issue in QHeaderView section colors after qt release (5.11) in linux

Question

After qt 5.11 release QHeaderView section colors stopped showing in linux. In windows works correctly. Has anyone encountered this problem?

I use QTableView with QHeaderView. Can I override paintSection function and do something to fix this issue ?

Answer 1

If you're using QAbstractTableModel for your QTableView - try to override

QVariant headerData( 
        int _section
    ,   Qt::Orientation _orientation
    ,   int _role /*= Qt::DisplayRole */ 
) const override;

If you do so, you will be able to write into the method body a mechanism of painting background in color you want. Something like this:

QVariant headerData(
        int _section
    ,   Qt::Orientation _orientation
    ,   int _role
) const
{
    if( _role == Qt::DisplayRole )
    {
        if( _orientation == Qt::Horizontal )
        {
            // TODO: Return there your header value.
        }
    }
    else if( _role == Qt::BackgroundRole )
    {
        if( _orientation == Qt::Horizontal )
        {
            return QBrush( QColor( Qt::grey ) );
        }
    }

    return QVariant();
}

This should help.