QToolButton not receiving ToolTip events

ghutchis

Somehow widgets aren't getting tool tip events.

I've used setToolTip(...) on QAction that go into a QToolBar (although IIRC the default would set the tooltip to the action text).

The tool tips never show up.

I checked a few things with an event filter - the QToolBar and the QToolButton never seem to receive QEvent::ToolTip events.

I can copy action->toolTip() to action->setStatusTip( action->toolTip() ) and they show up as status tips.

I do see QEvent::Enter and QEvent::HoverMove events.. so I could, in principal use those to fire off tool tips. But I'd like to understand why I'm not getting QEvent::ToolTip on my widgets.

Any ideas? Any place to start debugging?

mchinand

What does action->associatedWidgets() return? QActions aren't widgets themselves but this will tell you what widget(s) the action is associated with.

SGaist

Hi,

Can you provide a minimal compilable example that shows that behaviour ?

ghutchis

@mchinand said in QToolButton not receiving ToolTip events:

action->associatedWidgets()

The actions are giving:

 action:  "Player" QToolBar
 action:  "Player" QToolButton

Should they also have an associated widget of the MainWindow?

@SGaist said in QToolButton not receiving ToolTip events:

Can you provide a minimal compilable example that shows that behaviour ?

I wish. Likely if I had a minimal example, I'd have figured out the problem, sorry.

SGaist

Then I would recommend making one to help you find the issue.

We do not have enough information to guess what is going on.

You may have an event filter somewhere or maybe some strange interaction with a style you are using etc.

The other way is to make your application barebones and only keep the code related directly to the tooltips to see if it's working and if so, gradually add back the rest until it fails.

ghutchis

@SGaist said in QToolButton not receiving ToolTip events:

You may have an event filter somewhere or maybe some strange interaction with a style you are using etc.

Just to be clear, those would be the most likely issues to prevent a ToolTip event, yes?

Thanks.

ghutchis

For now, I'm just fudging it - I installed an event filter for QEvent::Enter:

Not great, but it works:

 if (event->type() == QEvent::Enter) {
    QWidget* target = qobject_cast<QWidget*>(object);
    QEnterEvent* ee = dynamic_cast<QEnterEvent*>(event);
    if (target && ee) {
      QToolTip::showText(ee->globalPos(), target->toolTip(), target);
      return true;
    }
  }

  return false;