Method OnInit

src/AudacityApp.cpp:1455–1535

The `main program' equivalent, creating the windows and returning the main frame

// The `main program' equivalent, creating the windows and returning the
// main frame
bool AudacityApp::OnInit()
{
   RegisterBuiltinEffects();

   // JKC: ANSWER-ME: Who actually added the event loop guarantor?
   // Although 'blame' says Leland, I think it came from a donated patch.

   // PRL:  It was added by LL at 54676a72285ba7ee3a69920e91fa390a71ef10c9 :
   // "   Ensure OnInit() has an event loop
   //     And allow events to flow so the splash window updates under GTK"
   // then mistakenly lost in the merge at
   // 37168ebbf67ae869ab71a3b5cbbf1d2a48e824aa
   // then restored at 7687972aa4b2199f0717165235f3ef68ade71e08

   // Ensure we have an event loop during initialization
   wxEventLoopGuarantor eventLoop;

   OnInit0();

   FileNames::InitializePathList();

   // Define languages for which we have translations, but that are not yet
   // supported by wxWidgets.
   //
   // TODO:  The whole Language initialization really need to be reworked.
   //        It's all over the place.
#if wxCHECK_VERSION(3, 0, 1) && !wxCHECK_VERSION(3, 1, 6)
   for (size_t i = 0, cnt = WXSIZEOF(userLangs); i < cnt; i++)
   {
      wxLocale::AddLanguage(userLangs[i]);
   }
#endif

   // Initialize preferences and language
   {
      InitPreferences(audacity::ApplicationSettings::Call());
      PopulatePreferences();
   }

   mThemeChangeSubscription = theTheme.Subscribe(OnThemeChange);

   {
      wxBusyCursor busy;
      theTheme.LoadPreferredTheme();
   }

   // AColor depends on theTheme.
   AColor::Init();

   // If this fails, we must exit the program.
   if (!InitTempDir()) {
      FinishPreferences();
      return false;
   }

   ThemeResources::Load();

#ifdef __WXMAC__