Method onPlotTabAdded

pj_app/src/MainWindow.cpp:1840–1863

}

void MainWindow::onPlotTabAdded(PlotDocker* docker) {
  if (docker == nullptr) {
    return;
  }
  connect(docker, &PlotDocker::plotWidgetAdded, this, &MainWindow::onPlotAdded, Qt::UniqueConnection);
  // ADS focus is the single source of truth for "which widget is active":
  // it fires on canvas click and on tab-titlebar click. PlotDocker re-emits
  // it as dockFocused(DockWidget*) so MainWindow can route to the right
  // sidepanel page (plot config / 2D / 3D) without pulling in ADS types.
  connect(docker, &PlotDocker::dockFocused, this, &MainWindow::onDockFocused, Qt::UniqueConnection);
  // Placeholder 2D/3D icon click → build + adopt the empty scene dock here (the
  // shell owns the family→kind mapping). The first topic dropped into such an
  // empty dock seeds streaming playback, matching the placeholder→drop path.
  connect(docker, &PlotDocker::objectFamilyRequested, this, &MainWindow::onObjectFamilyRequested, Qt::UniqueConnection);
  connect(
      docker, &PlotDocker::firstObjectTopicAdded, this, &MainWindow::seedStreamingPlaybackFromDrop,
      Qt::UniqueConnection);
  for (int index = 0; index < docker->plotCount(); ++index) {
    if (DockWidget* dock = docker->plotAt(index)) {
      onPlotAdded(dock->plotWidget());
    }
  }
  bindEditorToPlot(firstPlotOfActiveTab());
}

void MainWindow::onPlotAdded(PlotWidget* plot) {
  if (plot == nullptr) {