Qt WIdget inside ToolTip

Question

Is it, maybe by using some dirty hakish stuff, possible to use a QWidget as a tooltip or archive a similar mechanic? I want to have such a thing, because I have a list of some participants for a contest and would like to use a QListView for displaying everyone inside that contest when I hover the total participant count. I'm using Qt5.3.

Answer 1

A QToolTip can contain and display rich text, so you could create a the look of a table by using the HTML tags that are supported (see here).

If that does not suffice for your case, then you could always create your custom widget and display it at the right time by listening to the right events: QEvent::ToolTip would seem the right one. Overriding QWidget::event(QEvent *) would give you something like:

bool MyWidget::event(QEvent * event) override
{
    if ( event->type() == QEvent::ToolTip )
    {
        myToolTip_->show();
    }
}

But then you'd need to place your tooltip widget at the correct position, take care of hiding it when not needed anymore and so on... So I'd try the rich text version first.