Make QGLWidget fullscreen when double clicked in Qt5

[mellow]

I'm trying to make a QGLWidget inside another window go fullscreen when double clicked then back to the parent window when double clicked again. I achieved this in Qt 4.8 with the following code:

@void GLVideoWidget::mouseDoubleClickEvent(QMouseEvent *e)
{
if(isFullScreen())
{
setWindowFlags(Qt::Widget);
showNormal();
}
else
{
setWindowFlags(Qt::Window);
showFullScreen();
}
}@

In Qt5 this doesn't work anymore. When first double clicked, the widget goes fullscreen, but when I double click it again, it just disappears and isn't part of the parent window anymore. Any thoughts?

[mellow]

I still need help with this, so if anyone could hep I would be thankful.

[SGaist]

Hi,

This can either be a regression or a new behavior. What exact version of Qt are you using and on what OS ?

[mellow]

[quote author="SGaist" date="1400707525"]Hi,

This can either be a regression or a new behavior. What exact version of Qt are you using and on what OS ?[/quote]

I'm using Qt 5.2.1 running on Ubuntu 14.04

[SGaist]

Then I would recommend getting a look at the "bug report system":http://bugreports.qt-project.org to see if something known. If not you could consider opening a new report providing a minimal compilable example that shows the change of behavior