+ChatView *ChatScene::chatView() const {
+ return _chatView;
+}
+
+ColumnHandleItem *ChatScene::firstColumnHandle() const {
+ return _firstColHandle;
+}
+
+ColumnHandleItem *ChatScene::secondColumnHandle() const {
+ return _secondColHandle;
+}
+
+ChatLine *ChatScene::chatLine(MsgId msgId, bool matchExact, bool ignoreDayChange) const {
+ if(!_lines.count())
+ return 0;
+
+ QList<ChatLine*>::ConstIterator start = _lines.begin();
+ QList<ChatLine*>::ConstIterator end = _lines.end();
+ QList<ChatLine*>::ConstIterator middle;
+
+ int n = int(end - start);
+ int half;
+
+ while(n > 0) {
+ half = n >> 1;
+ middle = start + half;
+ if((*middle)->msgId() < msgId) {
+ start = middle + 1;
+ n -= half + 1;
+ } else {
+ n = half;
+ }
+ }
+
+ if(start != end && (*start)->msgId() == msgId && (ignoreDayChange? (*start)->msgType() != Message::DayChange : true))
+ return *start;
+
+ if(matchExact)
+ return 0;
+
+ if(start == _lines.begin()) // not (yet?) in our scene
+ return 0;
+
+ // if we didn't find the exact msgId, take the next-lower one (this makes sense for lastSeen)
+
+ if(start == end) { // higher than last element
+ if(!ignoreDayChange)
+ return _lines.last();
+
+ for(int i = _lines.count() -1; i >= 0; i--) {
+ if(_lines.at(i)->msgType() != Message::DayChange)
+ return _lines.at(i);
+ }
+ return 0;
+ }
+
+ // return the next-lower line
+ if(!ignoreDayChange)
+ return *(--start);
+
+ do {
+ if((*(--start))->msgType() != Message::DayChange)
+ return *start;
+ } while(start != _lines.begin());
+ return 0;
+}
+
+ChatItem *ChatScene::chatItemAt(const QPointF &scenePos) const {
+ foreach(QGraphicsItem *item, items(scenePos, Qt::IntersectsItemBoundingRect, Qt::AscendingOrder)) {
+ ChatLine *line = qgraphicsitem_cast<ChatLine*>(item);
+ if(line)
+ return line->itemAt(line->mapFromScene(scenePos));
+ }
+ return 0;
+}
+
+bool ChatScene::containsBuffer(const BufferId &id) const {
+ MessageFilter *filter = qobject_cast<MessageFilter*>(model());
+ if(filter)
+ return filter->containsBuffer(id);
+ else
+ return false;
+}
+
+void ChatScene::setMarkerLineVisible(bool visible) {
+ _markerLineVisible = visible;
+ if(visible && _markerLineValid)
+ markerLine()->setVisible(true);
+ else
+ markerLine()->setVisible(false);
+}
+
+void ChatScene::setMarkerLine(MsgId msgId) {
+ if(!isSingleBufferScene())
+ return;
+
+ if(!msgId.isValid())
+ msgId = Client::markerLine(singleBufferId());
+
+ if(msgId.isValid()) {
+ ChatLine *line = chatLine(msgId, false, true);
+ if(line) {
+ markerLine()->setChatLine(line);
+ // if this was the last line, we won't see it because it's outside the sceneRect
+ // .. which is exactly what we want :)
+ markerLine()->setPos(line->pos() + QPointF(0, line->height()));
+
+ // DayChange messages might have been hidden outside the scene rect, don't make the markerline visible then!
+ if(markerLine()->pos().y() >= sceneRect().y()) {
+ _markerLineValid = true;
+ if(_markerLineVisible)
+ markerLine()->setVisible(true);
+ if(_markerLineJumpPending) {
+ _markerLineJumpPending = false;
+ if(markerLine()->isVisible()) {
+ markerLine()->ensureVisible(QRectF(), 50, 50);
+ }
+ }
+ return;
+ }
+ }
+ }
+ _markerLineValid = false;
+ markerLine()->setVisible(false);
+}
+
+void ChatScene::jumpToMarkerLine(bool requestBacklog) {
+ if(!isSingleBufferScene())
+ return;
+
+ if(markerLine()->isVisible()) {
+ markerLine()->ensureVisible(QRectF(), 50, 50);
+ return;
+ }
+ if(!_markerLineValid && requestBacklog) {
+ MsgId msgId = Client::markerLine(singleBufferId());
+ if(msgId.isValid()) {
+ _markerLineJumpPending = true;
+ Client::backlogManager()->requestBacklog(singleBufferId(), msgId, -1, -1, 0);
+
+ // If we filtered out the lastSeenMsg (by changing filters after setting it), we'd never jump because the above request
+ // won't fetch any prior lines. Thus, trigger a dynamic backlog request just in case, so repeated
+ // jump tries will eventually cause enough backlog to be fetched.
+ // This is a bit hackish, but not wasteful, as jumping to the top of the ChatView would trigger a dynamic fetch anyway.
+ this->requestBacklog();
+ }
+ }
+}
+