How to align data in QTableView?

CuriousPan

Hello. I have my table view with QAbstractTableModel and I want to align all the data to the right. How can I do it?
I found several tutorials on this topic, but all of them reimplement data() method which I use for returning data of the model. Am I misunderstanding the method or is there a way to do it in some another way?

JonB

@CuriousPan
You are misunderstanding the full power/usage of QVariant QAbstractItemModel::data(const QModelIndex &index, int role = Qt::DisplayRole) const. Go look at that, and at enum Qt::ItemDataRole.

Qt infrastructure calls the data() method multiple times to render each data item. It does so by passing in different values for the role parameter. Your job is to write a switch statement looking at roles value and return different types of information. When it is called with the (default) Qt::DisplayRole (or Qt::EditRole), and only then, you should return your item's data value. When it is called with Qt::TextAlignmentRole you should return your desired right-alignment value.

CuriousPan

@JonB. Thank you for the answer. I defenitely should read the documentation better.
Now I have one more question - I align data to the right, but it's in the right edge. Is there a way to align it to the right and vertically to the center?

CuriousPan

@CuriousPan, found an answer to my question. Thank you.

JonB

@CuriousPan
:)

While you are looking at enum Qt::ItemDataRole, see what other roles are defined. You can affect fonts, colors, tooltips.... You can also look at the passed-in QModelIndex and/or the type of QVariant returned from Qt::DisplayRole/EditRole to selectively return different values for these, e.g. only numbers should be right-aligned, strings should be left-aligned.