Easier way to find visible row of a QModelIndex in a QTreeView

Question

Is there a way to get "visual row" of a given QModelIndex?

Let's say we have a tree with some nodes expanded and some not. For example, take a partially expanded tree and click on a last item:

item1    # (visual) row 1
  item2  # 2
  item5  # 3
item7    # 4
  item8  # 5 <-- click here

I want to know that item I clicked is in the 5th row, programmatically. QModelIndex's rows and columns are not helpful, as there is hierarchy here.

possible duplicate of [Easier way to find (visual) position of QModelIndex in QTreeView](http://stackoverflow.com/questions/1739643/easier-way-to-find-visual-position-of-qmodelindex-in-qtreeview) — Marc Mutz - mmutz, Jun 24 '12 at 11:37

score 4 · Accepted Answer · answered Jun 23 '12 at 16:30

4

If all of your rows have the same height, you can compute the visual row like this:

int visual_row(const QTreeView *tv, const QModelIndex &mi)
{
    const QRect visualRect = tv->visualRect(mi);
    if (visualRect.isValid())
        return visualRect.y() / visualRect.height();
    else
        return -1; // invisible
}

answered Jun 23 '12 at 16:30

Marc Mutz - mmutz

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@DmitrySazonov: yes, that's what I said in the first sentence. – Marc Mutz - mmutz Nov 02 '13 at 16:15
Yes, agree. I'm blind. Voted up. – Dmitry Sazonov Nov 03 '13 at 21:09

Easier way to find visible row of a QModelIndex in a QTreeView

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