+ChatLine *ChatView::lastVisibleChatLine() 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)
+ row = line->row();
+ }
+
+ if(row >= 0)
+ return scene()->chatLine(row);
+
+ return 0;
+}
+
+void ChatView::setMarkerLineVisible(bool visible) {
+ if(visible != _markerLineVisible) {
+ _markerLineVisible = visible;
+ }
+}
+
+void ChatView::setMarkedLine(ChatLine *line) {
+ if(_markedLine == line)
+ return;
+
+ if(!scene()->isSingleBufferScene())
+ return;
+
+ if(line) {
+ BufferId bufId = scene()->singleBufferId();
+ Client::setMarkerLine(bufId, line->msgId());
+ }
+}
+
+void ChatView::markerLineSet(BufferId buffer, MsgId msg) {
+ if(!scene()->isSingleBufferScene() || scene()->singleBufferId() != buffer)
+ return;
+
+ ChatLine *newLine = scene()->chatLine(msg);
+ if(_markedLine == newLine)
+ return;
+
+ ChatLine *oldLine = _markedLine;
+ _markedLine = newLine;
+
+ if(oldLine)
+ oldLine->update();
+
+ if(newLine) {
+ setMarkerLineVisible(true);
+ newLine->update();
+ }
+}
+
+void ChatView::addActionsToMenu(QMenu *menu, const QPointF &pos) {
+ // zoom actions
+ BufferWidget *bw = qobject_cast<BufferWidget *>(bufferContainer());
+ if(bw) {
+ bw->addActionsToMenu(menu, pos);
+ menu->addSeparator();
+ }
+}
+
+void ChatView::zoomIn() {
+ _currentScaleFactor *= 1.2;
+ scale(1.2, 1.2);
+ scene()->setWidth(viewport()->width() / _currentScaleFactor - 2);
+}
+
+void ChatView::zoomOut() {
+ _currentScaleFactor /= 1.2;
+ scale(1 / 1.2, 1 / 1.2);
+ scene()->setWidth(viewport()->width() / _currentScaleFactor - 2);
+}
+
+void ChatView::zoomOriginal() {
+ scale(1/_currentScaleFactor, 1/_currentScaleFactor);
+ _currentScaleFactor = 1;
+ scene()->setWidth(viewport()->width() - 2);
+}
+
+void ChatView::invalidateFilter() {
+ // if this is the currently selected chatview
+ // invalidate immediately
+ if(isVisible()) {
+ _scene->filter()->invalidateFilter();
+ _invalidateFilter = false;
+ }
+ // otherwise invalidate whenever the view is shown
+ else {
+ _invalidateFilter = true;
+ }
+}