Bug or feature: Hover-highlighting isn't reset if a QDialog is shown by a widget being hover-highlighted

l3u_

Hi :-)

This is probably some speacial case, so I'm not sure if what I see is only unexpected behavior or a bug.

I use a QRadioButton derived class which catches right mouse clicks. When being clicked by the right mouse button, the radio button is selected as if it was clicked by the left button, but additinally, a QDialog derived dialog is shown. I achieve this with the following code (stripped down to the relevant parts) inside my QRadioButton class:

void BoogerRadioButton::mousePressEvent(QMouseEvent *event)
{
    if (event->button() == Qt::RightButton) {
        if (! isChecked()) {
            setChecked(true);
            emit clicked();
        }
        emit scoreDialogRequested();
    } else {
        QRadioButton::mousePressEvent(event);
    }
}

The scoreDialogRequested signal triggers the dialog to be shown. The result is that the highlighting set by the mouse cursor hovering the radio button stays until the cursor re-enters the button and leaves it again. Here's a screenshot:

As a workaround, I call QWidget::mouseMoveEvent with a QMouseEvent taking part one pixel outside of the widget after emitting the signal triggering the dialog to show up, which makes the highlighting go away. Like this:

QMouseEvent ev(QEvent::MouseMove, QPointF(-1.0, -1.0), Qt::NoButton, Qt::NoButton, Qt::NoModifier);
mouseMoveEvent(&ev);

So … is this a bug or a feature?! ;-)

mpergand

Usely, the button is selected on mouse release and only if the mouse cursor is still inside the button.
On mouse press, the button is only highlighted.
You go against standard behavior and so the issue you describe

l3u_

Okay, so I should reimplement the mouseReleaseEvent rather than the mousePressEvent? I'll try that. I surely don't want to code against the default behavior.

l3u_

@mpergand Using mouseReleaseEvent instead of mousePressEvent actually fixes the highlight problem, thanks for the hint!

l3u_

This post is deleted!