QThrobber

Customizable throbber widget for Qt that uses QPainter rather than gifs to provide a clean and undistorted indicator. The throbber rotates, shrinks and grows as a helpful way to indiciate a state of busyness, loading or processing.

Example

    QThrobber *throbber = new QThrobber(ui->widget);
    throbber->setFixedSize(150,150);
    throbber->setText("Loading");
    throbber->setSpeed(QThrobber::Normal);
    throbber->setIcon(QIcon(":/icons/icons8-temperature.svg"));
    ui->widget->layout()->addWidget(throbber);

    throbber->start(); //start animation

If desired, you can pass a configured QPen object to the setPen(...) method. Setting the pen will override the size and color set with setThrobberWidth(...) and setThrobberColor(...) methods.

This is the preferred way to use color gradiants and dash styles

    QPen pen;
    pen.setWidth(4);
    pen.setColor("#F1F44E");
    pen.setCapStyle(Qt::RoundCap);

    throbber->setPen(pen);

The icon passed to QThrobber can be set to animate it's scale and/or opacity with the setIconScaleAnimationEnabled(...) and setIconOpacityAnimationEnabled(...). By default, only the icon opacity animation is enabled

Included example uses an icon from Icons8.com