Fix several language selection issues (#994)

src/gui/CemuApp.cpp

@@ -99,29 +99,7 @@ bool CemuApp::OnInit()
 
 	wxInitAllImageHandlers();
 
-
+	LocalizeUI();
-	m_languages = GetAvailableLanguages();
-
-	const sint32 language = GetConfig().language;
-	const auto it = std::find_if(m_languages.begin(), m_languages.end(), [language](const wxLanguageInfo* info) { return info->Language == language; });
-	if (it != m_languages.end() && wxLocale::IsAvailable(language))
-	{
-		if (m_locale.Init(language))
-		{
-			m_locale.AddCatalogLookupPathPrefix(ActiveSettings::GetDataPath("resources").generic_string());
-			m_locale.AddCatalog("cemu");
-		}
-	}
-
-	if (!m_locale.IsOk())
-	{
-		if (!wxLocale::IsAvailable(wxLANGUAGE_DEFAULT) || !m_locale.Init(wxLANGUAGE_DEFAULT))
-		{
-            m_locale.Init(wxLANGUAGE_ENGLISH);
-            m_locale.AddCatalogLookupPathPrefix(ActiveSettings::GetDataPath("resources").generic_string());
-            m_locale.AddCatalog("cemu");
-		}
-	}
 
 	// fill colour db
 	wxTheColourDatabase->AddColour("ERROR", wxColour(0xCC, 0, 0));
@@ -231,33 +209,44 @@ int CemuApp::FilterEvent(wxEvent& event)
 	return wxApp::FilterEvent(event);
 }
 
-std::vector<const wxLanguageInfo*> CemuApp::GetAvailableLanguages()
+std::vector<const wxLanguageInfo *> CemuApp::GetLanguages() const {
+	std::vector availableLanguages(m_availableTranslations);
+	availableLanguages.insert(availableLanguages.begin(), wxLocale::GetLanguageInfo(wxLANGUAGE_ENGLISH));
+	return availableLanguages;
+}
+
+void CemuApp::LocalizeUI()
 {
-	const auto path = ActiveSettings::GetDataPath("resources");
+	std::unique_ptr<wxTranslations> translationsMgr(new wxTranslations());
-	if (!exists(path))
+	m_availableTranslations = GetAvailableTranslationLanguages(translationsMgr.get());
-		return {};
 
-	std::vector<const wxLanguageInfo*> result;
+	const sint32 configuredLanguage = GetConfig().language;
-	for (const auto& p : fs::directory_iterator(path))
+	bool isTranslationAvailable = std::any_of(m_availableTranslations.begin(), m_availableTranslations.end(),
+											  [configuredLanguage](const wxLanguageInfo* info) { return info->Language == configuredLanguage; });
+	if (configuredLanguage == wxLANGUAGE_DEFAULT || isTranslationAvailable)
 	{
-		if (!fs::is_directory(p))
+		translationsMgr->SetLanguage(static_cast<wxLanguage>(configuredLanguage));
-			continue;
+		translationsMgr->AddCatalog("cemu");
 
-		const auto& path = p.path();
+		if (translationsMgr->IsLoaded("cemu") && wxLocale::IsAvailable(configuredLanguage))
-		auto filename = path.filename();
+			m_locale.Init(configuredLanguage);
 
-		const auto* lang_info = wxLocale::FindLanguageInfo(filename.c_str());
+		// This must be run after wxLocale::Init, as the latter sets up its own wxTranslations instance which we want to override
-		if (!lang_info)
+		wxTranslations::Set(translationsMgr.release());
-			continue;
-
-		const auto language_file = path / "cemu.mo";
-		if (!fs::exists(language_file))
-			continue;
-
-		result.emplace_back(lang_info);
 	}
+}
 
-	return result;
+std::vector<const wxLanguageInfo*> CemuApp::GetAvailableTranslationLanguages(wxTranslations* translationsMgr)
+{
+	wxFileTranslationsLoader::AddCatalogLookupPathPrefix(wxHelper::FromPath(ActiveSettings::GetDataPath("resources")));
+	std::vector<const wxLanguageInfo*> languages;
+	for (const auto& langName : translationsMgr->GetAvailableTranslations("cemu"))
+	{
+		const auto* langInfo = wxLocale::FindLanguageInfo(langName);
+		if (langInfo)
+			languages.emplace_back(langInfo);
+	}
+	return languages;
 }
 
 void CemuApp::CreateDefaultFiles(bool first_start)

src/gui/CemuApp.h

@@ -13,8 +13,7 @@ public:
 	void OnAssertFailure(const wxChar* file, int line, const wxChar* func, const wxChar* cond, const wxChar* msg) override;
 	int FilterEvent(wxEvent& event) override;
 
-	const std::vector<const wxLanguageInfo*>& GetLanguages() const { return m_languages; }
+	std::vector<const wxLanguageInfo*> GetLanguages() const;
-	static std::vector<const wxLanguageInfo*> GetAvailableLanguages();
 
 	static void CreateDefaultFiles(bool first_start = false);
 	static bool TrySelectMLCPath(fs::path path);
@@ -22,11 +21,13 @@ public:
 
 private:
 	void ActivateApp(wxActivateEvent& event);
+	void LocalizeUI();
+	static std::vector<const wxLanguageInfo*> GetAvailableTranslationLanguages(wxTranslations* translationsMgr);
 
 	MainWindow* m_mainFrame = nullptr;
 
 	wxLocale m_locale;
-	std::vector<const wxLanguageInfo*> m_languages;
+	std::vector<const wxLanguageInfo*> m_availableTranslations;
 };
 
 wxDECLARE_APP(CemuApp);

src/gui/GeneralSettings2.cpp

@@ -123,7 +123,7 @@ wxPanel* GeneralSettings2::AddGeneralPage(wxNotebook* notebook)
 
 			first_row->Add(new wxStaticText(box, wxID_ANY, _("Language"), wxDefaultPosition, wxDefaultSize, 0), 0, wxALIGN_CENTER_VERTICAL | wxALL, 5);
 
-			wxString language_choices[] = { _("Default"), "English" };
+			wxString language_choices[] = { _("Default") };
 			m_language = new wxChoice(box, wxID_ANY, wxDefaultPosition, wxDefaultSize, std::size(language_choices), language_choices);
 			m_language->SetSelection(0);
 			m_language->SetToolTip(_("Changes the interface language of Cemu\nAvailable languages are stored in the translation directory\nA restart will be required after changing the language"));
@@ -928,8 +928,6 @@ void GeneralSettings2::StoreConfig()
 	auto selection = m_language->GetSelection();
 	if (selection == 0)
 		GetConfig().language = wxLANGUAGE_DEFAULT;
-	else if (selection == 1)
-		GetConfig().language = wxLANGUAGE_ENGLISH;
 	else
 	{
 		const auto language = m_language->GetStringSelection();

src/gui/components/wxGameList.cpp

@@ -1027,7 +1027,7 @@ void wxGameList::OnGameEntryUpdatedByTitleId(wxTitleIdEvent& event)
 				if (playTimeStat.last_played.year != 0)
 				{
 					const wxDateTime tmp((wxDateTime::wxDateTime_t)playTimeStat.last_played.day, (wxDateTime::Month)playTimeStat.last_played.month, (wxDateTime::wxDateTime_t)playTimeStat.last_played.year, 0, 0, 0, 0);
-					SetItem(index, ColumnGameStarted, tmp.FormatISODate());
+					SetItem(index, ColumnGameStarted, tmp.FormatDate());
 				}
 				else
 					SetItem(index, ColumnGameStarted, _("never"));