Method dereference

src/Mod/Material/App/MaterialLoader.cpp:471–536

void MaterialLoader::dereference(
    const std::shared_ptr<std::map<QString, std::shared_ptr<Material>>>& materialMap,
    const std::shared_ptr<Material>& material)
{
    // Avoid recursion
    if (material->getDereferenced()) {
        return;
    }

    auto parentUUID = material->getParentUUID();
    if (parentUUID.size() > 0) {
        std::shared_ptr<Material> parent;
        try {
            parent = materialMap->at(parentUUID);
        }
        catch (std::out_of_range&) {
            Base::Console().log(
                "Unable to apply inheritance for material '%s', parent '%s' not found.\n",
                material->getName().toStdString().c_str(),
                parentUUID.toStdString().c_str());
            return;
        }

        // Ensure the parent has been dereferenced
        dereference(materialMap, parent);

        // Add physical models
        auto modelVector = parent->getPhysicalModels();
        for (auto& model : *modelVector) {
            if (!material->hasPhysicalModel(model)) {
                material->addPhysical(model);
            }
        }

        // Add appearance models
        modelVector = parent->getAppearanceModels();
        for (auto& model : *modelVector) {
            if (!material->hasAppearanceModel(model)) {
                material->addAppearance(model);
            }
        }

        // Add values
        auto properties = parent->getPhysicalProperties();
        for (auto& itp : properties) {
            auto name = itp.first;
            auto property = itp.second;

            if (material->getPhysicalProperty(name)->isNull()) {
                material->getPhysicalProperty(name)->setValue(property->getValue());
            }
        }

        properties = parent->getAppearanceProperties();
        for (auto& itp : properties) {
            auto name = itp.first;
            auto property = itp.second;