Method updateEntries

src/openms_gui/source/VISUAL/DIATreeTab.cpp:259–315

  }

  void DIATreeTab::updateEntries(LayerDataBase* layer)
  {
    if (layer == nullptr)
    {
      clear();
      return;
    }

    if (!dia_treewidget_->isVisible() || dia_treewidget_->signalsBlocked())
    {
      return;
    }
    auto* lp = dynamic_cast<const LayerDataChrom*>(layer);
    if (!lp) return;

    OSWData* data = lp->getChromatogramAnnotation().get();

    if (current_data_ == data)
    {
      // layer data is still the same as last time ..
      // do not repopulate the table for now, since the data should not have changed
      // Note: If we ever need to redraw, the tree's state (which subtress are expanded, which items are selected) will need to be remembered and restored
      return;
    }

    // update last data pointer
    current_data_ = data;

    dia_treewidget_->blockSignals(true);
    RAIICleanup clean([&]() { dia_treewidget_->blockSignals(false); });

    dia_treewidget_->clear();

    dia_treewidget_->setHeaders(Clmn::HEADER_NAMES);


    if (data == nullptr  // DIA tab is active, but the layer has no data to show...
        || data->getProteins().empty())
    {
      dia_treewidget_->setHeaders(QStringList() << "No data");
    }
    else
    {
      for (size_t prot_index = 0; prot_index < data->getProteins().size(); ++prot_index)
      {
        const auto& prot = data->getProteins()[prot_index];
        auto item_prot = createProt(prot, (int)prot_index);
        dia_treewidget_->addTopLevelItem(item_prot);
      }
    }
    
    populateSearchBox_();

    // automatically set column width, depending on data
    dia_treewidget_->header()->setStretchLastSection(false);
    dia_treewidget_->header()->setSectionResizeMode(QHeaderView::ResizeToContents);
  }