_bufferContainer = 0;
_currentScaleFactor = 1;
_invalidateFilter = false;
- _markerLineVisible = true;
- _markedLine = 0;
setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
void ChatView::resizeEvent(QResizeEvent *event) {
QGraphicsView::resizeEvent(event);
+ // FIXME: do we really need to scroll down on resize?
+
// we can reduce viewport updates if we scroll to the bottom allready at the beginning
verticalScrollBar()->setValue(verticalScrollBar()->maximum());
scene()->updateForViewport(viewport()->width(), viewport()->height());
_lastScrollbarPos = verticalScrollBar()->maximum();
verticalScrollBar()->setValue(verticalScrollBar()->maximum());
+
+ checkChatLineCaches();
}
void ChatView::adjustSceneRect() {
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)) {
return result;
}
-ChatLine *ChatView::lastVisibleChatLine() const {
+ChatLine *ChatView::lastVisibleChatLine(bool ignoreDayChange) const {
if(!scene())
return 0;
QSet<ChatLine *> visibleLines = visibleChatLines(Qt::ContainsItemBoundingRect);
foreach(ChatLine *line, visibleLines) {
- if(line->row() > row)
+ if(line->row() > row && (ignoreDayChange? line->msgType() != Message::DayChange : true))
row = line->row();
}
}
void ChatView::setMarkerLineVisible(bool visible) {
- if(visible != _markerLineVisible) {
- _markerLineVisible = visible;
- }
+ scene()->setMarkerLineVisible(visible);
}
-void ChatView::setMarkedLine(ChatLine *line) {
- if(_markedLine == line)
- return;
-
+void ChatView::setMarkerLine(MsgId msgId) {
if(!scene()->isSingleBufferScene())
return;
- if(line) {
- BufferId bufId = scene()->singleBufferId();
- Client::setMarkerLine(bufId, line->msgId());
- }
+ BufferId bufId = scene()->singleBufferId();
+ Client::setMarkerLine(bufId, msgId);
}
-void ChatView::markerLineSet(BufferId buffer, MsgId msg) {
+void ChatView::markerLineSet(BufferId buffer, MsgId msgId) {
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();
+ scene()->setMarkerLine(msgId);
+ scene()->setMarkerLineVisible(true);
+}
- if(newLine) {
- setMarkerLineVisible(true);
- newLine->update();
- }
+void ChatView::jumpToMarkerLine(bool requestBacklog) {
+ scene()->jumpToMarkerLine(requestBacklog);
}
void ChatView::addActionsToMenu(QMenu *menu, const QPointF &pos) {
_invalidateFilter = true;
}
}
+
+void ChatView::scrollContentsBy(int dx, int dy) {
+ QGraphicsView::scrollContentsBy(dx, dy);
+ checkChatLineCaches();
+}
+
+void ChatView::setHasCache(ChatLine *line, bool hasCache) {
+ if(hasCache)
+ _linesWithCache.insert(line);
+ else
+ _linesWithCache.remove(line);
+}
+
+void ChatView::checkChatLineCaches() {
+ qreal top = mapToScene(viewport()->rect().topLeft()).y() - 10; // some grace area to avoid premature cleaning
+ qreal bottom = mapToScene(viewport()->rect().bottomRight()).y() + 10;
+ QSet<ChatLine *>::iterator iter = _linesWithCache.begin();
+ while(iter != _linesWithCache.end()) {
+ ChatLine *line = *iter;
+ if(line->pos().y() + line->height() < top || line->pos().y() > bottom) {
+ line->clearCache();
+ iter = _linesWithCache.erase(iter);
+ } else
+ ++iter;
+ }
+}