void MPannableViewportScroller::stopScrolling(QGraphicsWidget *widget)
{
MPannableViewport *viewport = static_cast<MPannableViewport *>(widget);
// Scroll to current position. This is effectively same as stopping the animation.
viewport->d_func()->scrollTo(viewport->position(), 0);
}
void MPannableViewportScroller::applyScrolling(QGraphicsWidget *widget, const QPoint &contentsOffset,
int duration, const QEasingCurve &easingCurve)
{
MPannableViewport *viewport = static_cast<MPannableViewport *>(widget);
viewport->d_func()->scrollTo(viewport->position() - contentsOffset,
duration, easingCurve);
// Disables kinetic scrolling until next pointer event.
viewport->physics()->stop();
//TODO: After scrolling of every widget the topmost pannable viewport should make sure its range
// covers at least the sip.
}