-void ChatView::clear()
-{
-}
-
-void ChatView::prependMsg(AbstractUiMsg *msg) {
- //ChatLine *line = dynamic_cast<ChatLine*>(msg);
- //Q_ASSERT(line);
- //prependChatLine(line);
-}
-
-void ChatView::prependChatLine(ChatLine *line) {
- //qDebug() << "prepending";
+void ChatView::verticalScrollbarChanged(int newPos) {
+ QAbstractSlider *vbar = verticalScrollBar();
+ Q_ASSERT(vbar);
+
+ // FIXME dirty hack to battle the "I just scroll up a pixel on hide()/show()" problem
+ if(vbar->maximum() - vbar->value() < 5) vbar->setValue(vbar->maximum());
+
+ if(newPos < _lastScrollbarPos) {
+ int relativePos = 100;
+ if(vbar->maximum() - vbar->minimum() != 0)
+ relativePos = (newPos - vbar->minimum()) * 100 / (vbar->maximum() - vbar->minimum());
+
+ if(relativePos < 20) {
+ scene()->requestBacklog();
+ }
+ }
+ _lastScrollbarPos = newPos;