A system of translations into different languages has been implemented. Added translations into Russian. Various UI fixes for valid internationalization

translator.h

@@ -0,0 +1,53 @@
+#ifndef TRANSLATOR_H
+#define TRANSLATOR_H
+
+#include <QObject>
+#include <QMap>
+
+class QQmlEngine;
+class QTranslator;
+
+class Translator : public QObject
+{
+    Q_OBJECT
+
+    Q_PROPERTY(Language currentLanguage READ currentLanguage WRITE setCurrentLanguage NOTIFY currentLanguageChanged)
+    Q_PROPERTY(QString currentLanguageName READ currentLanguageName NOTIFY currentLanguageNameChanged)
+    Q_PROPERTY(QString currentLanguageIcon READ currentLanguageIcon NOTIFY currentLanguageNameChanged)
+
+public:
+    enum class Language {
+        English,
+        Russian,
+        Italian
+    };
+    Q_ENUM(Language)
+
+    explicit Translator(QQmlEngine* engine, QObject *parent = nullptr);
+
+public slots:
+    QString languageName(Language language) const;
+    QString languageIcon(Language language) const;
+
+public:
+    Language currentLanguage() const;
+    void setCurrentLanguage(Language language);
+
+    QString currentLanguageName() const;
+    QString currentLanguageIcon() const;
+
+signals:
+    void currentLanguageChanged();
+    void currentLanguageNameChanged();
+    void currentLanguageIconChanged();
+
+private:
+    Language mCurrentLanguage = Language::English;
+    QQmlEngine* mQmlEngine = nullptr;
+    QTranslator* mCurrentTranslator = nullptr;
+    QMap<Language, QString> mNamesMap;
+    QMap<Language, QString> mIconsMap;
+    QMap<Language, QString> mTranslationsMap;
+};
+
+#endif // TRANSLATOR_H