Class Language

app/src/processing/app/Language.java:33–380

Internationalization (i18n)

 * Internationalization (i18n)
 */
public class Language {
  // Store the language information in a file separate from the preferences,
  // because preferences need the language on load time.
  static protected final String PREF_FILE = "language.txt";
  static protected final File prefFile = Base.getSettingsFile(PREF_FILE);

  /** Single instance of this Language class */
  static private volatile Language instance;

  /** The system language */
  private String language;

  /** Available languages */
  private HashMap<String, String> languages;

  private LanguageBundle bundle;


  private Language() {
    String systemLanguage = Locale.getDefault().getLanguage();
    language = loadLanguage();
    boolean writePrefs = false;

    if (language == null) {
      language = systemLanguage;
      writePrefs = true;
    }

    // Set available languages
    languages = new HashMap<String, String>();
    for (String code : listSupported()) {
      Locale locale = Locale.forLanguageTag(code);
      languages.put(code, locale.getDisplayLanguage(locale));
    }

    // Set default language
    if (!languages.containsKey(language)) {
      language = "en";
      writePrefs = true;
    }

    if (writePrefs) {
      saveLanguage(language);
    }

    // Get bundle with translations (processing.app.language.PDE)
    //bundle = ResourceBundle.getBundle(Language.FILE, new Locale(this.language), new UTF8Control());
    try {
      bundle = new LanguageBundle(language);
    } catch (IOException e) {
      e.printStackTrace();
    }
  }


  static private String[] listSupported() {
    // List of languages in alphabetical order. (Add yours here.)
    // Also remember to add it to build/shared/lib/languages/languages.txt.