Method update

src/openms_gui/source/VISUAL/LayerListView.cpp:44–110

  }

  void LayerListView::update(PlotWidget* active_widget)
  {
    // reset items
    this->clear();

    spectrum_widget_ = active_widget;
    // during program exit, this could be called after PlotWidgets are gone
    if (spectrum_widget_ == nullptr)
    {
      return;
    }
    PlotCanvas* cc = spectrum_widget_->canvas();
    if (cc == nullptr)
    {
      return;
    }

    // determine if this is a 1D view (for text color)
    bool is_1d_view = (dynamic_cast<Plot1DCanvas*>(cc) != nullptr);

    this->blockSignals(true);
    RAIICleanup cl([&]() { this->blockSignals(false); });

    for (Size i = 0; i < cc->getLayerCount(); ++i)
    {
      const LayerDataBase& layer = cc->getLayer(i);

      // add item
      QListWidgetItem* item = new QListWidgetItem(this);
      QString name = layer.getDecoratedName().toQString();

      item->setText(name);
      item->setToolTip(layer.filename.toQString());

      if (is_1d_view)
      {
        QPixmap icon(7, 7);
        icon.fill(QColor(String(layer.param.getValue("peak_color").toString()).toQString()));
        item->setIcon(icon);
      }
      else
      {  // 2D/3D map view
        switch (layer.type)
        {
        case LayerDataBase::DT_PEAK:
          item->setIcon(QIcon(":/peaks.png"));
          break;
        case LayerDataBase::DT_FEATURE:
          item->setIcon(QIcon(":/convexhull.png"));
          break;
        case LayerDataBase::DT_CONSENSUS:
          item->setIcon(QIcon(":/elements.png"));
          break;
        default:
          break;
        }
      }