Method begin

src/SdCardFontSystem.cpp:18–45

}  // namespace

void SdCardFontSystem::begin(GfxRenderer& renderer) {
  registry_.discover();

  // Register this system as the SD font ID resolver in settings.
  // Uses a static trampoline since CrossPointSettings stores a plain function pointer.
  SETTINGS.sdFontIdResolver = [](void* ctx, const char* familyName, uint8_t fontSizeEnum) -> int {
    return static_cast<SdCardFontSystem*>(ctx)->resolveFontId(familyName, fontSizeEnum);
  };
  SETTINGS.sdFontResolverCtx = this;

  // If user has a saved SD font selection, load it
  if (SETTINGS.sdFontFamilyName[0] != '\0') {
    const auto* family = registry_.findFamily(SETTINGS.sdFontFamilyName);
    if (family) {
      if (manager_.loadFamily(*family, renderer, fontSizeEnumFromSettings())) {
        LOG_DBG("SDFS", "Loaded SD card font family: %s", SETTINGS.sdFontFamilyName);
      } else {
        LOG_ERR("SDFS", "Failed to load SD font family: %s (clearing)", SETTINGS.sdFontFamilyName);
        SETTINGS.sdFontFamilyName[0] = '\0';
      }
    } else {
      LOG_DBG("SDFS", "SD font family not found on card: %s (clearing)", SETTINGS.sdFontFamilyName);
      SETTINGS.sdFontFamilyName[0] = '\0';
    }
  }

  LOG_DBG("SDFS", "SD font system ready (%d families discovered)", registry_.getFamilyCount());
}

void SdCardFontSystem::ensureLoaded(GfxRenderer& renderer) {
  // If the web server (or another task) installed/deleted fonts, re-discover.