Bump required Qt version to 5.12

.github/workflows/build.yml

@@ -305,7 +305,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        debian_version: [ 'buster', 'bullseye', 'bookworm' ]
+        debian_version: [ 'bullseye', 'bookworm' ]
     container:
       image: debian:${{matrix.debian_version}}
     steps:
@@ -350,12 +350,12 @@ jobs:
             libmtp-dev
             libgpod-dev
       - name: Install Qt 5
-        if: matrix.debian_version == 'buster' || matrix.debian_version == 'bullseye'
+        if: matrix.debian_version == 'bullseye'
         env:
           DEBIAN_FRONTEND: noninteractive
         run: apt install -y qtbase5-dev qtbase5-dev-tools qttools5-dev qttools5-dev-tools libqt5x11extras5-dev
       - name: Install Qt 6
-        if: matrix.debian_version != 'buster' && matrix.debian_version != 'bullseye'
+        if: matrix.debian_version != 'bullseye'
         env:
           DEBIAN_FRONTEND: noninteractive
         run: apt install -y qt6-base-dev qt6-base-dev-tools qt6-tools-dev qt6-tools-dev-tools qt6-l10n-tools
@@ -379,7 +379,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ubuntu_version: [ 'bionic', 'focal', 'jammy', 'kinetic', 'lunar' ]
+        ubuntu_version: [ 'focal', 'jammy', 'kinetic', 'lunar' ]
     container:
       image: ubuntu:${{matrix.ubuntu_version}}
     steps:
@@ -427,12 +427,12 @@ jobs:
             libmtp-dev
             libgpod-dev
       - name: Install Qt 5
-        if: matrix.ubuntu_version == 'bionic' || matrix.ubuntu_version == 'focal'
+        if: matrix.ubuntu_version == 'focal'
         env:
           DEBIAN_FRONTEND: noninteractive
         run: apt install -y qtbase5-dev qtbase5-dev-tools qttools5-dev qttools5-dev-tools libqt5x11extras5-dev
       - name: Install Qt 6
-        if: matrix.ubuntu_version != 'bionic' && matrix.ubuntu_version != 'focal'
+        if: matrix.ubuntu_version != 'focal'
         env:
           DEBIAN_FRONTEND: noninteractive
         run: apt install -y qt6-base-dev qt6-base-dev-tools qt6-tools-dev qt6-tools-dev-tools qt6-l10n-tools

3rdparty/singleapplication/singleapplication_p.cpp

@@ -62,11 +62,7 @@
 #include <QLocalServer>
 #include <QLocalSocket>
 #include <QElapsedTimer>
-#if QT_VERSION >= QT_VERSION_CHECK(5, 10, 0)
 #include <QRandomGenerator>
-#else
-#  include <QDateTime>
-#endif
 
 #include "singleapplication_t.h"
 #include "singleapplication_p.h"
@@ -113,11 +109,7 @@ QString SingleApplicationPrivateClass::getUsername() {
   }
 #endif
   if (username.isEmpty()) {
-#if QT_VERSION >= QT_VERSION_CHECK(5, 10, 0)
     username = qEnvironmentVariable("USER");
-#else
-    username = QString::fromLocal8Bit(qgetenv("USER"));
-#endif
   }
   return username;
 #endif
@@ -129,11 +121,7 @@ QString SingleApplicationPrivateClass::getUsername() {
   if (GetUserNameW(username, &usernameLength)) {
     return QString::fromWCharArray(username);
   }
-#if QT_VERSION >= QT_VERSION_CHECK(5, 10, 0)
   return qEnvironmentVariable("USERNAME");
-#else
-  return QString::fromLocal8Bit(qgetenv("USERNAME"));
-#endif
 #endif
 
 }
@@ -512,11 +500,6 @@ void SingleApplicationPrivateClass::slotClientConnectionClosed(QLocalSocket *clo
 
 void SingleApplicationPrivateClass::randomSleep() {
 
-#if QT_VERSION >= QT_VERSION_CHECK(5, 10, 0)
   QThread::msleep(QRandomGenerator::global()->bounded(8U, 18U));
-#else
-  qsrand(QDateTime::currentMSecsSinceEpoch() % std::numeric_limits<uint>::max());
-  QThread::msleep(qrand() % 11 + 8);
-#endif
 
 }

CMakeLists.txt

@@ -179,7 +179,7 @@ if(DBUS_FOUND AND NOT WIN32)
   list(APPEND QT_COMPONENTS DBus)
 endif()
 set(QT_OPTIONAL_COMPONENTS Test)
-set(QT_MIN_VERSION 5.9)
+set(QT_MIN_VERSION 5.12)
 
 if(BUILD_WITH_QT6 OR QT_VERSION_MAJOR EQUAL 6)
   set(QT_VERSION_MAJOR 6 CACHE STRING "" FORCE)

README.md

@@ -73,7 +73,7 @@ To build Strawberry from source you need the following installed on your system
 * [pkg-config](https://www.freedesktop.org/wiki/Software/pkg-config/) or [pkgconf](https://github.com/pkgconf/pkgconf)
 * [Boost](https://www.boost.org/)
 * [GLib](https://developer.gnome.org/glib/)
-* [Qt 6 or Qt 5.9 or higher with components Core, Gui, Widgets, Concurrent, Network and Sql](https://www.qt.io/)
+* [Qt 6 or Qt 5.12 or higher with components Core, Gui, Widgets, Concurrent, Network and Sql](https://www.qt.io/)
 * [SQLite 3.9 or newer with FTS5](https://www.sqlite.org)
 * [Protobuf](https://developers.google.com/protocol-buffers/)
 * [ALSA (Required on Linux)](https://www.alsa-project.org/)
@@ -118,4 +118,3 @@ To compile on Windows with Visual Studio 2019 or 2022, see https://github.com/st
 ### :penguin:	Packaging status
 
 [![Packaging status](https://repology.org/badge/vertical-allrepos/strawberry.svg?exclude_unsupported=1)](https://repology.org/metapackage/strawberry/versions)
-

ext/libstrawberry-common/core/workerpool.h

@@ -37,9 +37,7 @@
 #include <QString>
 #include <QStringList>
 #include <QAtomicInt>
-#if QT_VERSION >= QT_VERSION_CHECK(5, 10, 0)
 #include <QRandomGenerator>
-#endif
 
 #include "core/logging.h"
 
@@ -294,11 +292,7 @@ void WorkerPool<HandlerType>::StartOneWorker(Worker *worker) {
 
   // Create a server, find an unused name and start listening
   forever {
-#if QT_VERSION >= QT_VERSION_CHECK(5, 10, 0)
     const quint32 unique_number = QRandomGenerator::global()->bounded(static_cast<quint32>(quint64(this) & 0xFFFFFFFF));
-#else
-    const quint32 unique_number = qrand() ^ (static_cast<quint32>(quint64(this) & 0xFFFFFFFF));
-#endif
     const QString name = QString("%1_%2").arg(local_server_name_).arg(unique_number);
 
     if (worker->local_server_->listen(name)) {

ext/libstrawberry-tagreader/tagreadertaglib.cpp

@@ -240,12 +240,9 @@ bool TagReaderTagLib::ReadFile(const QString &filename, spb::tagreader::SongMeta
   song->set_basefilename(basefilename.constData(), basefilename.length());
   song->set_url(url.constData(), url.size());
   song->set_filesize(fileinfo.size());
+
   song->set_mtime(fileinfo.lastModified().isValid() ? std::max(fileinfo.lastModified().toSecsSinceEpoch(), 0LL) : 0LL);
-#if (QT_VERSION >= QT_VERSION_CHECK(5, 10, 0))
   song->set_ctime(fileinfo.birthTime().isValid() ? std::max(fileinfo.birthTime().toSecsSinceEpoch(), 0LL) : fileinfo.lastModified().isValid() ? std::max(fileinfo.lastModified().toSecsSinceEpoch(), 0LL) : 0LL);
-#else
-  song->set_ctime(fileinfo.created().isValid() ? std::max(fileinfo.created().toSecsSinceEpoch(), 0LL) : fileinfo.lastModified().isValid() ? std::max(fileinfo.lastModified().toSecsSinceEpoch(), 0LL) : 0LL);
-#endif
 
   if (song->ctime() <= 0) {
     song->set_ctime(song->mtime());

ext/libstrawberry-tagreader/tagreadertagparser.cpp

@@ -108,12 +108,9 @@ bool TagReaderTagParser::ReadFile(const QString &filename, spb::tagreader::SongM
   song->set_basefilename(basefilename.constData(), basefilename.size());
   song->set_url(url.constData(), url.size());
   song->set_filesize(fileinfo.size());
+
   song->set_mtime(fileinfo.lastModified().isValid() ? std::max(fileinfo.lastModified().toSecsSinceEpoch(), 0LL) : 0LL);
-#if (QT_VERSION >= QT_VERSION_CHECK(5, 10, 0))
   song->set_ctime(fileinfo.birthTime().isValid() ? std::max(fileinfo.birthTime().toSecsSinceEpoch(), 0LL) : fileinfo.lastModified().isValid() ? std::max(fileinfo.lastModified().toSecsSinceEpoch(), 0LL) : 0LL);
-#else
-  song->set_ctime(fileinfo.created().isValid() ? std::max(fileinfo.created().toSecsSinceEpoch(), 0LL) : fileinfo.lastModified().isValid() ? std::max(fileinfo.lastModified().toSecsSinceEpoch(), 0LL) : 0LL);
-#endif
 
   if (song->ctime() <= 0) {
     song->set_ctime(song->mtime());

ext/strawberry-tagreader/main.cpp

@@ -20,9 +20,6 @@
 
 #include <QtGlobal>
 
-#if QT_VERSION < QT_VERSION_CHECK(5, 10, 0)
-#  include <sys/time.h>
-#endif
 #include <iostream>
 
 #include <QCoreApplication>
@@ -46,13 +43,6 @@ int main(int argc, char **argv) {
     return 1;
   }
 
-  // Seed random number generator
-#if QT_VERSION < QT_VERSION_CHECK(5, 10, 0)
-  timeval time;
-  gettimeofday(&time, nullptr);
-  qsrand((time.tv_sec * 1000) + (time.tv_usec / 1000));
-#endif
-
   logging::Init();
   qLog(Info) << "TagReader worker connecting to" << args[1];
 
@@ -67,4 +57,5 @@ int main(int argc, char **argv) {
   TagReaderWorker worker(&socket);
 
   return a.exec();
+  
 }

src/core/mainwindow.cpp

@@ -844,11 +844,7 @@ MainWindow::MainWindow(Application *app, std::shared_ptr<SystemTrayIcon> tray_ic
   QObject::connect(ui_->analyzer, &AnalyzerContainer::WheelEvent, this, &MainWindow::VolumeWheelEvent);
 
   // Statusbar widgets
-#if (QT_VERSION >= QT_VERSION_CHECK(5, 11, 0))
   ui_->playlist_summary->setMinimumWidth(QFontMetrics(font()).horizontalAdvance("WW selected of WW tracks - [ WW:WW ]"));
-#else
-  ui_->playlist_summary->setMinimumWidth(QFontMetrics(font()).width("WW selected of WW tracks - [ WW:WW ]"));
-#endif
   ui_->status_bar_stack->setCurrentWidget(ui_->playlist_summary_page);
   QObject::connect(ui_->multi_loading_indicator, &MultiLoadingIndicator::TaskCountChange, this, &MainWindow::TaskCountChanged);
 

src/covermanager/albumcoversearcher.cpp

@@ -92,11 +92,7 @@ void SizeOverlayDelegate::paint(QPainter *painter, const QStyleOptionViewItem &o
 
   const QFontMetrics metrics(font);
 
-#if (QT_VERSION >= QT_VERSION_CHECK(5, 11, 0))
   const int text_width = metrics.horizontalAdvance(text);
-#else
-  const int text_width = metrics.width(text);
-#endif
 
   const QRect icon_rect(option.rect.left(), option.rect.top(), option.rect.width(), option.rect.width());
 

src/equalizer/equalizerslider.cpp

@@ -38,12 +38,7 @@ EqualizerSlider::EqualizerSlider(const QString &label, QWidget *parent)
   ui_->band->setText(label);
 
   QFontMetrics fm = ui_->gain->fontMetrics();
-#if (QT_VERSION >= QT_VERSION_CHECK(5, 11, 0))
+  ui_->gain->setMinimumWidth(fm.horizontalAdvance(tr("%1 dB").arg(-99.99)));
-  int longestLabelWidth = fm.horizontalAdvance(tr("%1 dB").arg(-99.99));
-#else
-  int longestLabelWidth = fm.width(tr("%1 dB").arg(-99.99));
-#endif
-  ui_->gain->setMinimumWidth(longestLabelWidth);
   ui_->gain->setText(tr("%1 dB").arg(0));  // Gain [dB]
 
   ui_->slider->setValue(0);

src/internet/localredirectserver.cpp

@@ -46,9 +46,7 @@
 #include <QTcpSocket>
 #include <QSslSocket>
 #include <QDateTime>
-#if QT_VERSION >= QT_VERSION_CHECK(5, 10, 0)
 #include <QRandomGenerator>
-#endif
 
 LocalRedirectServer::LocalRedirectServer(QObject *parent)
     : QTcpServer(parent),
@@ -152,11 +150,7 @@ bool LocalRedirectServer::GenerateCertificate() {
     return false;
   }
 
-#if QT_VERSION >= QT_VERSION_CHECK(5, 10, 0)
+  const quint64 serial = 9999999 + QRandomGenerator::global()->bounded(1000000);
-  quint64 serial = 9999999 + QRandomGenerator::global()->bounded(1000000);
-#else
-  quint64 serial = (9999999 + qrand() % 1000000);
-#endif
 
   QByteArray q_serial;
   q_serial.setNum(serial);

src/main.cpp

@@ -175,9 +175,6 @@ int main(int argc, char *argv[]) {
   // Seed the random number generators.
   time_t t = time(nullptr);
   srand(t);
-#if QT_VERSION < QT_VERSION_CHECK(5, 10, 0)
-  qsrand(t);
-#endif
 
 #ifdef Q_OS_MACOS
   Utilities::IncreaseFDLimit();

src/osd/osddbus.cpp

@@ -84,11 +84,7 @@ QDBusArgument &operator<<(QDBusArgument &arg, const QImage &image) {
   qint32 bitspersample = i.depth() / channels;
   arg << bitspersample;
   arg << channels;
-#if (QT_VERSION >= QT_VERSION_CHECK(5, 10, 0))
   arg << QByteArray(reinterpret_cast<const char*>(i.constBits()), static_cast<int>(i.sizeInBytes()));
-#else
-  arg << QByteArray(reinterpret_cast<const char*>(i.constBits()), i.byteCount());
-#endif
   arg.endStructure();
 
   return arg;

src/osd/osdpretty.cpp

@@ -542,13 +542,7 @@ void OSDPretty::mouseReleaseEvent(QMouseEvent *) {
 
 QScreen *OSDPretty::current_screen(const QPoint pos) const {
 
-  QScreen *screen(nullptr);
+  QScreen *screen = QGuiApplication::screenAt(pos);
-#if (QT_VERSION >= QT_VERSION_CHECK(5, 10, 0))
-  screen = QGuiApplication::screenAt(pos);
-#else
-  Q_UNUSED(pos)
-  if (window() && window()->windowHandle()) screen = window()->windowHandle()->screen();
-#endif
   if (!screen) screen = QGuiApplication::primaryScreen();
 
   return screen;

src/playlist/playlistdelegates.cpp

@@ -110,11 +110,7 @@ void QueuedItemDelegate::DrawBox(QPainter *painter, const QRect line_rect, const
   smaller.setBold(true);
 
   if (width == -1) {
-#if (QT_VERSION >= QT_VERSION_CHECK(5, 11, 0))
     width = QFontMetrics(font).horizontalAdvance(text + "  ");
-#else
-    width = QFontMetrics(font).width(text + "  ");
-#endif
   }
 
   QRect rect(line_rect);

src/playlist/playlistview.cpp

@@ -99,11 +99,7 @@ void PlaylistProxyStyle::drawControl(ControlElement element, const QStyleOption
     const QFontMetrics &font_metrics = header_option->fontMetrics;
 
     // Spaces added to make transition less abrupt
-#if (QT_VERSION >= QT_VERSION_CHECK(5, 11, 0))
     if (rect.width() < font_metrics.horizontalAdvance(text + "  ")) {
-#else
-    if (rect.width() < font_metrics.width(text + "  ")) {
-#endif
       const Playlist::Column column = static_cast<Playlist::Column>(header_option->section);
       QStyleOptionHeader new_option(*header_option);
       new_option.text = Playlist::abbreviated_column_name(column);
@@ -183,9 +179,7 @@ PlaylistView::PlaylistView(QWidget *parent)
 
   setHeader(header_);
   header_->setSectionsMovable(true);
-#if QT_VERSION >= QT_VERSION_CHECK(5, 11, 0)
   header_->setFirstSectionMovable(true);
-#endif
   header_->setSortIndicator(Playlist::Column_Title, Qt::AscendingOrder);
 
   setStyle(style_);

src/qobuz/qobuzrequest.cpp

@@ -1358,7 +1358,7 @@ void QobuzRequest::AlbumCoverReceived(QNetworkReply *reply, const QUrl &cover_ur
     return;
   }
 
-  QByteArrayList format_list = ImageUtils::ImageFormatsForMimeType(mimetype.toUtf8());
+  QByteArrayList format_list = QImageReader::imageFormatsForMimeType(mimetype.toUtf8());
   char *format = nullptr;
   if (!format_list.isEmpty()) {
     format = format_list.first().data();

src/settings/backendsettingspage.cpp

@@ -70,13 +70,8 @@ BackendSettingsPage::BackendSettingsPage(SettingsDialog *dialog, QWidget *parent
   ui_->setupUi(this);
   setWindowIcon(IconLoader::Load("soundcard", true, 0, 32));
 
-#if (QT_VERSION >= QT_VERSION_CHECK(5, 11, 0))
   ui_->label_replaygainpreamp->setMinimumWidth(QFontMetrics(ui_->label_replaygainpreamp->font()).horizontalAdvance("-WW.W dB"));
   ui_->label_replaygainfallbackgain->setMinimumWidth(QFontMetrics(ui_->label_replaygainfallbackgain->font()).horizontalAdvance("-WW.W dB"));
-#else
-  ui_->label_replaygainpreamp->setMinimumWidth(QFontMetrics(ui_->label_replaygainpreamp->font()).width("-WW.W dB"));
-  ui_->label_replaygainfallbackgain->setMinimumWidth(QFontMetrics(ui_->label_replaygainfallbackgain->font()).width("-WW.W dB"));
-#endif
 
   QObject::connect(ui_->combobox_engine, QOverload<int>::of(&QComboBox::currentIndexChanged), this, &BackendSettingsPage::EngineChanged);
   QObject::connect(ui_->combobox_output, QOverload<int>::of(&QComboBox::currentIndexChanged), this, &BackendSettingsPage::OutputChanged);

src/smartplaylists/smartplaylistsearchtermwidget.cpp

@@ -486,11 +486,7 @@ void SmartPlaylistSearchTermWidget::Overlay::paintEvent(QPaintEvent*) {
 
   // Geometry
 
-#if (QT_VERSION >= QT_VERSION_CHECK(5, 11, 0))
   const QSize contents_size(kIconSize + kSpacing + fontMetrics().horizontalAdvance(text_), qMax(kIconSize, fontMetrics().height()));
-#else
-  const QSize contents_size(kIconSize + kSpacing + fontMetrics().width(text_), qMax(kIconSize, fontMetrics().height()));
-#endif
 
   const QRect contents(QPoint((width() - contents_size.width()) / 2, (height() - contents_size.height()) / 2), contents_size);
   const QRect icon(contents.topLeft(), QSize(kIconSize, kIconSize));

src/subsonic/subsonicrequest.cpp

@@ -819,7 +819,7 @@ void SubsonicRequest::AlbumCoverReceived(QNetworkReply *reply, const AlbumCoverR
     return;
   }
 
-  QByteArrayList format_list = ImageUtils::ImageFormatsForMimeType(mimetype.toUtf8());
+  QByteArrayList format_list = QImageReader::imageFormatsForMimeType(mimetype.toUtf8());
   char *format = nullptr;
   if (!format_list.isEmpty()) {
     format = format_list.first().data();

src/tidal/tidalfavoriterequest.cpp

@@ -253,11 +253,7 @@ void TidalFavoriteRequest::RemoveFavoritesRequest(const FavoriteType type, const
   QUrl url(QString(TidalService::kApiUrl) + QString("/") + "users/" + QString::number(service_->user_id()) + "/favorites/" + FavoriteText(type) + QString("/") + id);
   url.setQuery(url_query);
   QNetworkRequest req(url);
-#if QT_VERSION >= QT_VERSION_CHECK(5, 9, 0)
   req.setAttribute(QNetworkRequest::RedirectPolicyAttribute, QNetworkRequest::NoLessSafeRedirectPolicy);
-#else
-  req.setAttribute(QNetworkRequest::FollowRedirectsAttribute, true);
-#endif
   req.setHeader(QNetworkRequest::ContentTypeHeader, "application/x-www-form-urlencoded");
   if (oauth() && !access_token().isEmpty()) req.setRawHeader("authorization", "Bearer " + access_token().toUtf8());
   else if (!session_id().isEmpty()) req.setRawHeader("X-Tidal-SessionId", session_id().toUtf8());

src/tidal/tidalrequest.cpp

@@ -1294,7 +1294,7 @@ void TidalRequest::AlbumCoverReceived(QNetworkReply *reply, const QString &album
     return;
   }
 
-  QByteArrayList format_list = ImageUtils::ImageFormatsForMimeType(mimetype.toUtf8());
+  QByteArrayList format_list = QImageReader::imageFormatsForMimeType(mimetype.toUtf8());
   char *format = nullptr;
   if (!format_list.isEmpty()) {
     format = format_list.first().data();

src/utilities/imageutils.cpp

@@ -61,20 +61,6 @@ QStringList ImageUtils::SupportedImageFormats() {
 
 }
 
-QByteArrayList ImageUtils::ImageFormatsForMimeType(const QByteArray &mimetype) {
-
-#if (QT_VERSION >= QT_VERSION_CHECK(5, 12, 0))
-  return QImageReader::imageFormatsForMimeType(mimetype);
-#else
-  if (mimetype == "image/bmp") return QByteArrayList() << "BMP";
-  else if (mimetype == "image/gif") return QByteArrayList() << "GIF";
-  else if (mimetype == "image/jpeg") return QByteArrayList() << "JPG";
-  else if (mimetype == "image/png") return QByteArrayList() << "PNG";
-  else return QByteArrayList();
-#endif
-
-}
-
 QPixmap ImageUtils::TryLoadPixmap(const QUrl &art_automatic, const QUrl &art_manual, const QUrl &url) {
 
   QPixmap ret;

src/utilities/imageutils.h

@@ -37,7 +37,6 @@ class ImageUtils {
  public:
   static QStringList SupportedImageMimeTypes();
   static QStringList SupportedImageFormats();
-  static QByteArrayList ImageFormatsForMimeType(const QByteArray &mimetype);
   static QByteArray SaveImageToJpegData(const QImage &image = QImage());
   static QByteArray FileToJpegData(const QString &filename);
   static QPixmap TryLoadPixmap(const QUrl &automatic, const QUrl &manual, const QUrl &url = QUrl());

src/utilities/macaddrutils.cpp

@@ -36,11 +36,7 @@ QString MacAddress() {
         !(netif.flags() & QNetworkInterface::IsUp) ||
         !(netif.flags() & QNetworkInterface::IsRunning)
         ) { continue; }
-    if (ret.isEmpty()
+    if (ret.isEmpty() || netif.type() == QNetworkInterface::Ethernet || netif.type() == QNetworkInterface::Wifi) {
-#if (QT_VERSION >= QT_VERSION_CHECK(5, 11, 0))
-        || netif.type() == QNetworkInterface::Ethernet || netif.type() == QNetworkInterface::Wifi
-#endif
-    ) {
       ret = netif.hardwareAddress();
     }
   }

src/utilities/randutils.cpp

@@ -20,9 +20,7 @@
 #include <QString>
 #include <QChar>
 
-#if QT_VERSION >= QT_VERSION_CHECK(5, 10, 0)
 #include <QRandomGenerator>
-#endif
 
 #include "randutils.h"
 
@@ -47,11 +45,7 @@ QString GetRandomString(const int len, const QString &UseCharacters) {
 
   QString randstr;
   for (int i = 0; i < len; ++i) {
-#if QT_VERSION >= QT_VERSION_CHECK(5, 10, 0)
     const qint64 index = QRandomGenerator::global()->bounded(0, UseCharacters.length());
-#else
-    const int index = qrand() % UseCharacters.length();
-#endif
     QChar nextchar = UseCharacters.at(index);
     randstr.append(nextchar);
   }

src/widgets/freespacebar.cpp

@@ -196,11 +196,7 @@ void FreeSpaceBar::DrawText(QPainter *p, const QRect r) {
 
   int text_width = 0;
   for (const Label &label : labels) {
-#if (QT_VERSION >= QT_VERSION_CHECK(5, 11, 0))
     text_width += kLabelBoxSize + kLabelBoxPadding + kLabelSpacing + small_metrics.horizontalAdvance(label.text);
-#else
-    text_width += kLabelBoxSize + kLabelBoxPadding + kLabelSpacing + small_metrics.width(label.text);
-#endif
   }
 
   // Draw the text
@@ -215,18 +211,10 @@ void FreeSpaceBar::DrawText(QPainter *p, const QRect r) {
     p->setBrush(label.color);
     p->drawRect(box);
 
-#if (QT_VERSION >= QT_VERSION_CHECK(5, 11, 0))
     QRect text(x + kLabelBoxSize + kLabelBoxPadding, r.top(), small_metrics.horizontalAdvance(label.text), r.height());
-#else
-    QRect text(x + kLabelBoxSize + kLabelBoxPadding, r.top(), small_metrics.width(label.text), r.height());
-#endif
     p->setPen(light ? label.color.darker() : label.color);
     p->drawText(text, Qt::AlignCenter, label.text);
-#if (QT_VERSION >= QT_VERSION_CHECK(5, 11, 0))
     x += kLabelBoxSize + kLabelBoxPadding + kLabelSpacing + small_metrics.horizontalAdvance(label.text);
-#else
-    x += kLabelBoxSize + kLabelBoxPadding + kLabelSpacing + small_metrics.width(label.text);
-#endif
   }
 
 }

src/widgets/linetextedit.cpp

@@ -40,17 +40,15 @@ LineTextEdit::LineTextEdit(QWidget *parent) : QTextEdit(parent) {
 }
 
 QSize LineTextEdit::sizeHint() const {
+
   QFontMetrics fm(font());
 
   static const int kMargin = 5;
   int h = 2 * kMargin + qMax(fm.height(), 14);
-#if (QT_VERSION >= QT_VERSION_CHECK(5, 11, 0))
   int w = 2 * kMargin + fm.horizontalAdvance("W") * 15;
-#else
-  int w = 2 * kMargin + fm.width("W") * 15;
-#endif
 
   return QSize(w, h);
+
 }
 
 QSize LineTextEdit::minimumSizeHint() const {

src/widgets/multiloadingindicator.cpp

@@ -49,11 +49,7 @@ MultiLoadingIndicator::MultiLoadingIndicator(QWidget *parent)
 
 QSize MultiLoadingIndicator::sizeHint() const {
 
-#if (QT_VERSION >= QT_VERSION_CHECK(5, 11, 0))
   const int width = kHorizontalPadding * 2 + spinner_->sizeHint().width() + kSpacing + fontMetrics().horizontalAdvance(text_);
-#else
-  const int width = kHorizontalPadding * 2 + spinner_->sizeHint().width() + kSpacing + fontMetrics().width(text_);
-#endif
   const int height = kVerticalPadding * 2 + qMax(spinner_->sizeHint().height(), fontMetrics().height());
 
   return QSize(width, height);

src/widgets/tracksliderpopup.cpp

@@ -80,11 +80,7 @@ void TrackSliderPopup::paintEvent(QPaintEvent*) {
 
 void TrackSliderPopup::UpdatePixmap() {
 
-#if (QT_VERSION >= QT_VERSION_CHECK(5, 11, 0))
   const int text_width = qMax(font_metrics_.horizontalAdvance(text_), small_font_metrics_.horizontalAdvance(small_text_));
-#else
-  const int text_width = qMax(font_metrics_.width(text_), small_font_metrics_.width(small_text_));
-#endif
   const QRect text_rect1(static_cast<int>(kBlurRadius) + kTextMargin, static_cast<int>(kBlurRadius) + kTextMargin, text_width + 2, font_metrics_.height());
   const QRect text_rect2(static_cast<int>(kBlurRadius) + kTextMargin, text_rect1.bottom(), text_width, small_font_metrics_.height());