Method FilterEditorPanel

pj_plotting/widget/src/FilterEditorPanel.cpp:97–204

}  // namespace

FilterEditorPanel::FilterEditorPanel(
    SessionManager* session, CatalogModel* catalog, std::vector<CurveDescriptor> sources,
    QHash<QString, QColor> source_colors, QWidget* parent)
    : QWidget(parent),
      ui_(std::make_unique<Ui::FilterEditorPanel>()),
      session_(session),
      catalog_(catalog),
      sources_(std::move(sources)),
      source_colors_(std::move(source_colors)) {
  ui_->setupUi(this);

  populateSources();
  populateTransforms();

  connect(ui_->transform_list, &QListWidget::currentRowChanged, this, [this](int) { onTransformChanged(); });

  // Primary action: Apply (materialize + replace in place). "Generate time
  // series" (an additive new series) is deferred under the replace-in-place
  // model, so its button is hidden for now.
  ui_->save_btn->setText(tr("Apply"));
  connect(ui_->save_btn, &QPushButton::clicked, this, [this]() { applyToSelected(); });
  ui_->generate_btn->setVisible(false);

  ui_->cancel_btn->setText(tr("Close"));
  connect(ui_->cancel_btn, &QPushButton::clicked, this, [this]() { emit closed(); });

  // The generated parameter editor replaces the 7 hardcoded panel_* widgets. Its
  // schema comes from the bundled Luau filter classes (read once from the app
  // resource); M5 routes this through the FilterCatalogue instead.
  filter_engine_ = scripting::makeLuauEngine();
  if (QFile f(QStringLiteral(":/filters/builtin_filters.luau")); f.open(QIODevice::ReadOnly)) {
    if (auto classes = filter_engine_->inspectModule(f.readAll().toStdString(), "bundled"); classes.has_value()) {
      filter_classes_ = std::move(classes.value());
    }
  }
  if (filter_classes_.empty()) {  // the resource is embedded, so this is defensive
    ui_->status_label->setText(tr("Warning: built-in filter definitions failed to load"));
  }
  param_form_ = new ParameterForm(this);
  ui_->paramsLayout->insertWidget(0, param_form_);
  connect(param_form_, &ParameterForm::changed, this, [this]() { scheduleRefresh(); });

  // Copy / paste / apply-to-all of the visible filter parameters — icon buttons
  // in the parameters-column header (the params are what is copied), matching the
  // scene3d settings toolbar's SVGs and 20px sizing.
  const auto make_icon_button = [this](const QString& svg, const QString& tip) {
    auto* button = new QToolButton(this);
    button->setAutoRaise(true);
    button->setFocusPolicy(Qt::NoFocus);
    button->setIconSize(QSize(Style::kInputHeight, Style::kInputHeight));
    button->setFixedSize(Style::kInputHeight, Style::kInputHeight);  // 20x20, like every icon button
    button->setIcon(QIcon(loadSvg(svg, currentTheme())));
    button->setToolTip(tip);
    return button;
  };
  copy_button_ = make_icon_button(QStringLiteral(":/resources/svg/copy.svg"), tr("Copy parameters"));
  paste_button_ = make_icon_button(QStringLiteral(":/resources/svg/paste.svg"), tr("Paste parameters"));
  apply_all_button_ =