+bool ApiTraceModel::canFetchMore(const QModelIndex &parent) const
+{
+ if (parent.isValid()) {
+ ApiTraceEvent *event = item(parent);
+ if (event && event->type() == ApiTraceEvent::Frame) {
+ ApiTraceFrame *frame = static_cast<ApiTraceFrame*>(event);
+ return !frame->isLoaded() && !m_loadingFrames.contains(frame);
+ } else
+ return false;
+ } else {
+ return false;
+ }
+}
+
+void ApiTraceModel::fetchMore(const QModelIndex &parent)
+{
+ if (parent.isValid()) {
+ ApiTraceEvent *event = item(parent);
+ if (event && event->type() == ApiTraceEvent::Frame) {
+ ApiTraceFrame *frame = static_cast<ApiTraceFrame*>(event);
+ QModelIndex index = createIndex(frame->number, 0, frame);
+
+ Q_ASSERT(!frame->isLoaded());
+ m_loadingFrames.insert(frame);
+
+ m_trace->loadFrame(frame);
+ }
+ }
+}
+
+void ApiTraceModel::beginLoadingFrame(ApiTraceFrame *frame, int numAdded)
+{
+ QModelIndex index = createIndex(frame->number, 0, frame);
+ beginInsertRows(index, 0, numAdded - 1);
+}
+
+void ApiTraceModel::endLoadingFrame(ApiTraceFrame *frame)
+{
+ QModelIndex index = createIndex(frame->number, 0, frame);
+#if 0
+ qDebug()<<"Frame loaded = "<<frame->loaded();
+ qDebug()<<"\tframe idx = "<<frame->number;
+ qDebug()<<"\tis empty = "<<frame->isEmpty();
+ qDebug()<<"\tnum children = "<<frame->numChildren();
+ qDebug()<<"\tindex is "<<index;
+#endif
+
+ endInsertRows();
+
+ emit dataChanged(index, index);
+
+ m_loadingFrames.remove(frame);
+}
+