Method lock

snap_drawing/src/snap_drawing/cpp/Text/FontManager.cpp:419–421

void FontManager::registerTypeface(const String& fontFamilyName,
                                   FontStyle fontStyle,
                                   bool canUseAsFallback,
                                   const Ref<LoadableTypeface>& loadableTypeface) {
    auto guard = lock(/* shouldInitIfNeeded */ false, nullptr);
    _typefaceRegistry.registerTypeface(fontFamilyName, fontStyle, canUseAsFallback, loadableTypeface);
    // Clear fallback font family cache, so that we can pickup our new typeface
    _fallbackFontFamilies.clear();