utf8 pwiz problem fixed

src/input/identificationpwizreader.cpp

@@ -61,7 +61,12 @@ pwiz::identdata::IdentDataFile * getPwizIdentDataFile(const QString & filename)
     //qDebug() << " env=" << localeconv () << " lc->decimal_point " << lc->decimal_point;
     pwiz::identdata::IdentDataFile * dataFile;
     try {
-        dataFile = new pwiz::identdata::IdentDataFile(filename.toStdString());
+        QByteArray byte_array = filename.toLocal8Bit();
+        std::string res = "";
+        for (char c : byte_array) {
+            res += c;
+        }
+        dataFile = new pwiz::identdata::IdentDataFile(res);
     }
     catch (std::exception& error)
     {