Table with number of columns depending on row?

[Arghargh]

Hello,

finally after a year just reading my first post

I'm using Qt 4.3 and I want to create a table (QTableView) with a different number of columns per row, for example
Row 0: Col0 Col1
Row 1: Col0
Row 2: Col0 Col1 Col2

Is this even possible with a QTableView, or would I have to implement my own custom view?

If it is possible, how can I access the row number? I thought I could use a custom model and return different values in columnCount() depending on the row, but the ModelIndex just returns -1 as row number.

Thanks in advance,

Arghargh

[spud]

The QModelIndex argument of columnCount() doesn't mean anything in flat models, so the short answer to your question is no.
However you can reimplement QAbstractItemModel::flags() to differentiate empty cells from valid ones(returning 0 means a cell is not enabled, not selectable and not editable).

[jpn]

Notice also QTableView::setSpan().

[Arghargh]

Thank you for the answers.
At the moment I use a combination of your suggestions, a non-editable spanning widget with a BackgroundRole for the correct (grey) background color. I works fine, I just thought the code was a little ugly so I'm looking for another way to accomplish the special table, but I don't think a custom view would be worth the effort.

Arghargh