Connecting a called pointer's signal

[Dummie1138]

Hi. I have a QLabel displaying a QMovie.

    QMovie *movie = new QMovie("images/Nope.gif");
    movie->setScaledSize(ui->loadingLabel->size());
    ui->loadingLabel->setMovie(movie);
    movie->start();
    movie->setPaused(true);

I have another function that is meant to stop the movie after a label is modified, which is the following.

void ApplicationSettings::on_combo_changeLabel_textActivated(const QString &arg1)
{
    QString currentText = arg1;
    qDebug() << ui->loadingLabel->movie() << "txtac";

    connect(ui->loadingLabel->movie(), SIGNAL(finished()), this, SLOT(setPaused()));
    ui->loadingLabel->movie()->start();
    qDebug() << "Thing connected";
}

void ApplicationSettings::setPaused(){
    ui->loadingLabel->movie()->setPaused(true);
    qDebug() << "in paused";
}

My output is:

QMovie(0x7c78428) txtac
Thing connected

I believe I have not properly connected the signal and the slot, but I am not sure how exactly did I mess up. It may be because I am calling the pointer that needs connected to, but I am not sure how this might affect things. Please let me know if more information is required.

[J.Hilk]

@Dummie1138 you're using old connect syntax, so do you have setPaused marked as a slot ? Inside your header,

Also check the return value of the connect call, see if its true or false

[Dummie1138]

@J-Hilk I do have setPaused marked in a private slot.

What exactly do you mean by return value of connect? Both functions and the signal are voids.

[jsulm]

@Dummie1138 said in Connecting a called pointer's signal:

What exactly do you mean by return value of connect?

connect() returns a boolean...

[Dummie1138]

@jsulm I did not even think of that, thanks!

In my case, my connect returns a true. According to the documentation I'm assuming the connection is valid then? In that case I will look into other potential reasons for the slot not being called.

[J.Hilk]

@Dummie1138 what does loopCount() return ? maybe its set to -1 Than QMovie probably never emits the finished signal, as it never finishes :D

[Dummie1138]

@J-Hilk Yeah, I just tried swapping to framechanged(int), which paused it right away. I'll try to mess with my QMovie or the gif so that it can actually know when to finish.