void ChatView::lastLineChanged(QGraphicsItem *chatLine, qreal offset) {
Q_UNUSED(chatLine)
+ if(!scene()->isScrollingAllowed())
+ return;
+
QAbstractSlider *vbar = verticalScrollBar();
Q_ASSERT(vbar);
if(vbar->maximum() - vbar->value() <= (offset + 5) * _currentScaleFactor ) { // 5px grace area