Method removeDatasetData

pj_app/src/MainWindow.cpp:1573–1601

}

void MainWindow::removeDatasetData(DatasetId dataset_id) {
  if (dataset_id == active_streaming_dataset_id_) {
    if (streaming_manager_ != nullptr) {
      streaming_manager_->stopDatasetAndWait(dataset_id, tr("dataset removed"));
    }
    active_streaming_dataset_id_ = 0;
    streaming_playback_seeded_ = false;
  }
  // A REAL delete: erase the dataset's data from the object store AND the engine —
  // no tombstone — so a later load of the same source is a clean fresh load (mints
  // a new DatasetId), not a reattach to an emptied shell.
  //
  // Order matters. Invalidate the TF buffer first (it was built from these object
  // topics; invalidateDataset walks listTopics(dataset_id), empty once eviction
  // runs). Then evict the object payloads (so the catalog's itemsRemoved prunes
  // 2D/3D layers). Then drop the catalog items (tearing down every curve adapter).
  // ONLY THEN erase the engine's scalar storage: DataEngine::removeDataset requires
  // all readers/adapters invalidated first, which the synchronous teardown above guarantees.
  if (transform_service_ != nullptr) {
    transform_service_->invalidateDataset(dataset_id);
  }
  session_->sessionManager().evictDatasetObjects(dataset_id);
  session_->catalogModel().removeDataset(dataset_id, /*tombstone=*/false);
  session_->sessionManager().dataEngine().removeDataset(dataset_id);
  // Drop this dataset's file association (hygiene). Resurrection is prevented by
  // the layout-save liveness filter (appendDataSourceElement), not by mutating
  // loaded_sources_ — that list is kept whole so the quick-reload button still works.
  file_loader_->untrackDataset(dataset_id);
}

void MainWindow::onRemoveDatasetsRequested(const QList<DatasetId>& dataset_ids) {
  if (dataset_ids.isEmpty()) {