Remove all uses of QTextCodec

src/core/song.cpp

@@ -50,7 +50,6 @@
 #include <QUrl>
 #include <QImage>
 #include <QIcon>
-#include <QTextCodec>
 #include <QSqlQuery>
 #include <QStandardPaths>
 #include <QtDebug>
@@ -745,14 +744,6 @@ void Song::set_genre_id3(int id) {
   set_genre(TStringToQString(TagLib::ID3v1::genre(id)));
 }
 
-QString Song::Decode(const QString &tag, const QTextCodec *codec) {
-  if (!codec) {
-    return tag;
-  }
-
-  return codec->toUnicode(tag.toUtf8());
-}
-
 void Song::InitFromProtobuf(const pb::tagreader::SongMetadata &pb) {
 
   if (d->source_ == Source_Unknown) d->source_ = Source_LocalFile;

src/core/song.h

@@ -38,7 +38,6 @@
 #include <QImage>
 #include <QIcon>
 
-class QTextCodec;
 class QSqlQuery;
 
 namespace Engine {
@@ -177,8 +176,6 @@ class Song {
   // Useful when you want updated tags from disk but you want to keep user stats.
   void MergeUserSetData(const Song &other);
 
-  static QString Decode(const QString &tag, const QTextCodec *codec = nullptr);
-
   // Save
   void BindToQuery(QSqlQuery *query) const;
   void BindToFtsQuery(QSqlQuery *query) const;

src/covermanager/musixmatchcoverprovider.cpp

@@ -26,7 +26,6 @@
 #include <QUrl>
 #include <QUrlQuery>
 #include <QRegularExpression>
-#include <QTextCodec>
 #include <QNetworkAccessManager>
 #include <QNetworkRequest>
 #include <QNetworkReply>
@@ -122,14 +121,7 @@ void MusixmatchCoverProvider::HandleSearchReply(QNetworkReply *reply, const int
     emit SearchFinished(id, results);
     return;
   }
-
-  QTextCodec *codec = QTextCodec::codecForName("utf-8");
-  if (!codec) {
-    emit SearchFinished(id, results);
-    return;
-  }
-  QString content = codec->toUnicode(data);
-
+  QString content = data;
   QString data_begin = "var __mxmState = ";
   QString data_end = ";</script>";
   int begin_idx = content.indexOf(data_begin);

src/lyrics/geniuslyricsprovider.cpp

@@ -33,7 +33,6 @@
 #include <QNetworkRequest>
 #include <QNetworkReply>
 #include <QSslError>
-#include <QTextCodec>
 #include <QDesktopServices>
 #include <QCryptographicHash>
 #include <QRegularExpression>
@@ -496,13 +495,7 @@ void GeniusLyricsProvider::HandleLyricReply(QNetworkReply *reply, const int sear
     EndSearch(search, lyric);
     return;
   }
-
-  QTextCodec *codec = QTextCodec::codecForName("utf-8");
-  if (!codec) {
-    EndSearch(search, lyric);
-    return;
-  }
-  QString content = codec->toUnicode(data);
+  QString content = data;
 
   // Extract the lyrics from HTML.
 

src/lyrics/musixmatchlyricsprovider.cpp

@@ -26,7 +26,6 @@
 #include <QUrl>
 #include <QUrlQuery>
 #include <QRegularExpression>
-#include <QTextCodec>
 #include <QNetworkAccessManager>
 #include <QNetworkRequest>
 #include <QNetworkReply>
@@ -122,13 +121,7 @@ void MusixmatchLyricsProvider::HandleSearchReply(QNetworkReply *reply, const qui
     return;
   }
 
-  QTextCodec *codec = QTextCodec::codecForName("utf-8");
-  if (!codec) {
-    emit SearchFinished(id, results);
-    return;
-  }
-  QString content = codec->toUnicode(data);
-
+  QString content = data;
   QString data_begin = "var __mxmState = ";
   QString data_end = ";</script>";
   int begin_idx = content.indexOf(data_begin);

src/playlistparsers/cueparser.cpp

@@ -29,7 +29,6 @@
 #include <QStringList>
 #include <QRegularExpression>
 #include <QRegularExpressionMatch>
-#include <QTextCodec>
 #include <QTextStream>
 #include <QtDebug>
 
@@ -63,9 +62,6 @@ SongList CueParser::Load(QIODevice *device, const QString &playlist_path, const
   SongList ret;
 
   QTextStream text_stream(device);
-#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
-  text_stream.setCodec(QTextCodec::codecForUtfText(device->peek(1024), QTextCodec::codecForName("UTF-8")));
-#endif
 
   QString dir_path = dir.absolutePath();
   // read the first line already