cache filename extension translators: added target language name

Author: Blu3train

extensions/translatewrapper.cpp

@@ -25,11 +25,12 @@ extern const wchar_t* TOO_MANY_TRANS_REQUESTS;
 extern const char* TRANSLATION_PROVIDER;
 extern const char* GET_API_KEY_FROM;
 extern const QStringList languagesTo, languagesFrom;
+extern const std::unordered_map<std::wstring, std::wstring> codes;
 extern bool translateSelectedOnly, rateLimitAll, rateLimitSelected, useCache, useFilter;
 extern int tokenCount, rateLimitTimespan, maxSentenceSize;
 std::pair<bool, std::wstring> Translate(const std::wstring& text, TranslationParam tlp);
 
-const std::string TRANSLATION_CACHE_FILE = FormatString("%s Translation Cache.txt", TRANSLATION_PROVIDER);
+std::string TRANSLATION_CACHE_FILE = FormatString("%s Translation Cache.txt", TRANSLATION_PROVIDER);
 
 QFormLayout* display;
 Settings settings;
@@ -47,6 +48,19 @@ namespace
 		std::ofstream(TRANSLATION_CACHE_FILE, std::ios::binary | std::ios::trunc).write((const char*)allTranslations.c_str(), allTranslations.size() * sizeof(wchar_t));
 		savedSize = translationCache->size();
 	}
+	void LoadCache()
+	{
+		translationCache->clear();
+		std::ifstream stream(TRANSLATION_CACHE_FILE, std::ios::binary);
+		BlockMarkupIterator savedTranslations(stream, Array<std::wstring_view>{ L"|SENTENCE|", L"|TRANSLATION|" });
+		auto translationCache = ::translationCache.Acquire();
+		while (auto read = savedTranslations.Next())
+		{
+			auto& [sentence, translation] = read.value();
+			translationCache->try_emplace(std::move(sentence), std::move(translation));
+		}
+		savedSize = translationCache->size();
+	}
 }
 
 class Window : public QDialog, Localizer
@@ -117,16 +131,6 @@ class Window : public QDialog, Localizer
 
 		setWindowTitle(TRANSLATION_PROVIDER);
 		QMetaObject::invokeMethod(this, &QWidget::show, Qt::QueuedConnection);
-
-		std::ifstream stream(TRANSLATION_CACHE_FILE, std::ios::binary);
-		BlockMarkupIterator savedTranslations(stream, Array<std::wstring_view>{ L"|SENTENCE|", L"|TRANSLATION|" });
-		auto translationCache = ::translationCache.Acquire();
-		while (auto read = savedTranslations.Next())
-		{
-			auto& [sentence, translation] = read.value();
-			translationCache->try_emplace(std::move(sentence), std::move(translation));
-		}
-		savedSize = translationCache->size();
 	}
 
 	~Window()
@@ -138,6 +142,9 @@ class Window : public QDialog, Localizer
 	void SaveTranslateTo(QString language)
 	{
 		settings.setValue(TRANSLATE_TO, S(tlp->translateTo = S(language)));
+		if (translationCache->size() > savedSize) SaveCache();
+		TRANSLATION_CACHE_FILE = FormatString("%s Translation Cache (%ls).txt", TRANSLATION_PROVIDER, codes.at(S(language)));
+		LoadCache();
 	}
 	void SaveTranslateFrom(QString language)
 	{