How to open an URL in a QTableView

Question

What is the best way to present a clickable URL in a QTableView (or QTreeView, QListView, etc...)

Given a QStandardItemModel where some of the columns contain text with URLs I'd like them to become clickable and then handle the click by using QDesktopServices::openURL()

I was hoping there would be some easy way to leverage QLabel's textInteraction flags and to cram them into the table. I can't believe there's not an easier way to handle this. I really hope I'm missing something.

Answer 1

You'll need to create a delegate to do the painting. The code should look something like this:

void RenderLinkDelegate::paint(
           QPainter *painter,
           const QStyleOptionViewItem &option,
           const QModelIndex &index
           ) const
{
    QString text = index.data(Qt::DisplayRole).toString();
    if (text.isEmpty())
        return;

    painter->save();

    // I only wanted it for mouse over, but you'll probably want to remove
    // this condition
    if (option.state & QStyle::State_MouseOver)
    {
        QFont font = option.font;
        font.setUnderline(true);
        painter->setFont(font);
        painter->setPen(option.palette.link().color());
    }
    painter->drawText(option.rect, Qt::AlignLeft | Qt::AlignVCenter, text);

    painter->restore();
}