QTreeView header text alignment

myUsername

Hello everybody!

I'm facing this strange problem: as you see in the image below, I'm working on a tree view and I cannot set the proper alignment on the header text. (On Qt 5.15.2)

I am using:

ui->treeView->header()->setDefaultAlignment(Qt::AlignBottom | Qt::AlignRight);

I am also increasing the default height of the lines and this is showing the issue clearer.
You can find my full code here: https://gitlab.com/lknth/myFileManager

How can I fix this?

Thanks in advance for your help!

Chris Kawa

The view's default alignment is only used if the model doesn't provide alignment for the header.
You need to implement the Qt::TextAlignmentRole in your headerData() to either return the alignment you want or an empty QVariant, in which case the view's default will be used

QVariant MyFileSystemProxyModel::headerData(int section, Qt::Orientation orientation, int role) const
{
    if (role == Qt::TextAlignmentRole)
        return QVariant();

    return QSortFilterProxyModel::headerData(section, orientation, role);
}

myUsername

@Chris-Kawa said in QTreeView header text alignment:

QVariant MyFileSystemProxyModel::headerData(int section, Qt::Orientation orientation, int role) const
{
if (role == Qt::TextAlignmentRole)
return QVariant();
return QSortFilterProxyModel::headerData(section, orientation, role);
}

Thank you very much! It works!