message: Clamp the current event to the actually visible region
  The local eidAxisRect has its left edge moved due to panning, so use the
  member variable with original values instead.
diff: @@ -625,10 +625,10 @@ void TimelineBar::paintEvent(QPaintEvent *e)
  qreal realMiddle = currentRect.center().x();
  // clamp the position from the left or right side
  - if(currentRect.left() < eidAxisRect.left())
  - currentRect.moveLeft(eidAxisRect.left());
  - else if(currentRect.right() > eidAxisRect.right())
  - currentRect.moveRight(eidAxisRect.right());
  + if(currentRect.left() < m_eidAxisRect.left())
  + currentRect.moveLeft(m_eidAxisRect.left());
  + else if(currentRect.right() > m_eidAxisRect.right())
  + currentRect.moveRight(m_eidAxisRect.right());
  // re-add the top margin so the lines match up with the border around the EID axis
  QRectF currentBackRect = currentRect.marginsAdded(QMargins(0, margin, 0, 0));
  @@ -647,7 +647,7 @@ void TimelineBar::paintEvent(QPaintEvent *e)
  // draw a line from the bottom of the shadow downwards
  QPointF currentTop = currentRect.center();
  - currentTop.setX(int(qBound(eidAxisRect.left(), realMiddle, eidAxisRect.right() - 2.0)) + 0.5);
  + currentTop.setX(int(qBound(m_eidAxisRect.left(), realMiddle, m_eidAxisRect.right() - 2.0)) + 0.5);
  currentTop.setY(currentRect.bottom());
  QPointF currentBottom = currentTop;
  