Use localized language names from ICU rather than English names

src/aegisublocale.cpp

@@ -35,14 +35,13 @@
 #include "aegisublocale.h"
 
 #include "options.h"
+#include "utils.h"
 
 #include <libaegisub/path.h>
 
 #include <algorithm>
-#include <boost/locale.hpp>
 #include <clocale>
 #include <functional>
-
 #include <wx/intl.h>
 #include <wx/choicdlg.h> // Keep this last so wxUSE_CHOICEDLG is set.
 
@@ -78,6 +77,7 @@ wxString AegisubLocale::PickLanguage() {
 	}
 
 	wxArrayString langs = GetTranslations()->GetAvailableTranslations(AEGISUB_CATALOG);
+
 	// No translations available, so don't bother asking the user
 	if (langs.empty() && !active_language)
 		return "en_US";
@@ -94,13 +94,8 @@ wxString AegisubLocale::PickLanguage() {
 
 	// Generate names
 	wxArrayString langNames;
-	for (auto const& lang : langs) {
-		const wxLanguageInfo *info = wxLocale::FindLanguageInfo(lang);
-		if (info)
-			langNames.push_back(wxLocale::GetLanguageName(info->Language));
-		else
-			langNames.push_back(lang);
-	}
+	for (auto const& lang : langs)
+		langNames.push_back(LocalizedLanguageName(lang));
 
 	long style = wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER | wxOK | wxCENTRE;
 	if (!active_language.empty())

src/subs_edit_ctrl.cpp

@@ -444,10 +444,8 @@ wxMenu *SubsTextEditCtrl::GetLanguagesMenu(int base_id, wxString const& curLang,
 	auto languageMenu = new wxMenu;
 	languageMenu->AppendRadioItem(base_id, _("Disable"))->Check(curLang.empty());
 
-	for (size_t i = 0; i < langs.size(); ++i) {
-		const wxLanguageInfo *info = wxLocale::FindLanguageInfo(langs[i]);
-		languageMenu->AppendRadioItem(base_id + i + 1, info ? info->Description : langs[i])->Check(langs[i] == curLang);
-	}
+	for (size_t i = 0; i < langs.size(); ++i)
+		languageMenu->AppendRadioItem(base_id + i + 1, LocalizedLanguageName(langs[i]))->Check(langs[i] == curLang);
 
 	return languageMenu;
 }

src/utils.cpp

@@ -49,7 +49,7 @@
 #include <boost/filesystem.hpp>
 #include <boost/format.hpp>
 #include <map>
-
+#include <unicode/locid.h>
 #include <wx/clipbrd.h>
 #include <wx/filedlg.h>
 #include <wx/stdpaths.h>
@@ -267,3 +267,16 @@ agi::fs::path OpenFileSelector(wxString const& message, std::string const& optio
 agi::fs::path SaveFileSelector(wxString const& message, std::string const& option_name, std::string const& default_filename, std::string const& default_extension, wxString const& wildcard, wxWindow *parent) {
 	return FileSelector(message, option_name, default_filename, default_extension, wildcard, wxFD_SAVE | wxFD_OVERWRITE_PROMPT, parent);
 }
+
+wxString LocalizedLanguageName(wxString const& lang) {
+	Locale iculoc(lang.c_str());
+	if (!iculoc.isBogus()) {
+		UnicodeString ustr;
+		iculoc.getDisplayName(iculoc, ustr);
+		return wxString(ustr.getBuffer());
+	}
+
+	if (auto info = wxLocale::FindLanguageInfo(lang))
+		return info->Description;
+	return lang;
+}

src/utils.h

@@ -112,3 +112,5 @@ wxString FontFace(std::string opt_prefix);
 
 agi::fs::path OpenFileSelector(wxString const& message, std::string const& option_name, std::string const& default_filename, std::string const& default_extension, wxString const& wildcard, wxWindow *parent);
 agi::fs::path SaveFileSelector(wxString const& message, std::string const& option_name, std::string const& default_filename, std::string const& default_extension, wxString const& wildcard, wxWindow *parent);
+
+wxString LocalizedLanguageName(wxString const& lang);