+}
+
+
+bool chatLinePtrLessThan(ChatLine *one, ChatLine *other)
+{
+ return one->row() < other->row();
+}
+
+
+// TODO: figure out if it's cheaper to use a cached list (that we'd need to keep updated)
+QSet<ChatLine *> ChatView::visibleChatLines(Qt::ItemSelectionMode mode) const
+{
+ QSet<ChatLine *> result;
+ foreach(QGraphicsItem *item, items(viewport()->rect().adjusted(-1, -1, 1, 1), mode)) {
+ ChatLine *line = qgraphicsitem_cast<ChatLine *>(item);
+ if (line)
+ result.insert(line);
+ }
+ return result;
+}
+
+
+QList<ChatLine *> ChatView::visibleChatLinesSorted(Qt::ItemSelectionMode mode) const
+{
+ QList<ChatLine *> result = visibleChatLines(mode).toList();
+ qSort(result.begin(), result.end(), chatLinePtrLessThan);
+ return result;
+}
+
+
+ChatLine *ChatView::lastVisibleChatLine(bool ignoreDayChange) const
+{
+ if (!scene())
+ return 0;
+
+ QAbstractItemModel *model = scene()->model();
+ if (!model || model->rowCount() == 0)
+ return 0;
+
+ int row = -1;
+
+ QSet<ChatLine *> visibleLines = visibleChatLines(Qt::ContainsItemBoundingRect);
+ foreach(ChatLine *line, visibleLines) {
+ if (line->row() > row && (ignoreDayChange ? line->msgType() != Message::DayChange : true))
+ row = line->row();
+ }
+
+ if (row >= 0)
+ return scene()->chatLine(row);
+
+ return 0;
+}
+
+
+void ChatView::setMarkerLineVisible(bool visible)
+{
+ scene()->setMarkerLineVisible(visible);
+}
+
+
+void ChatView::setMarkerLine(MsgId msgId)
+{
+ if (!scene()->isSingleBufferScene())
+ return;
+
+ BufferId bufId = scene()->singleBufferId();
+ Client::setMarkerLine(bufId, msgId);
+}
+
+
+void ChatView::markerLineSet(BufferId buffer, MsgId msgId)
+{
+ if (!scene()->isSingleBufferScene() || scene()->singleBufferId() != buffer)
+ return;
+
+ scene()->setMarkerLine(msgId);
+ scene()->setMarkerLineVisible(true);
+}
+
+
+void ChatView::jumpToMarkerLine(bool requestBacklog)
+{
+ scene()->jumpToMarkerLine(requestBacklog);
+}
+