Fix coding style for various things

src/app/cmdoptions.cpp

@@ -486,7 +486,7 @@ CommandLineParameterError::CommandLineParameterError(const QString &messageForUs
 {
 }
 
-const QString& CommandLineParameterError::messageForUser() const
+const QString &CommandLineParameterError::messageForUser() const
 {
     return m_messageForUser;
 }

src/app/main.cpp

@@ -202,7 +202,7 @@ int main(int argc, char *argv[])
         // this is the default in Qt6
         app->setAttribute(Qt::AA_DisableWindowContextHelpButton);
 #endif
-#endif
+#endif // Q_OS_WIN
 
 #if defined(Q_OS_MAC)
         // Since Apple made difficult for users to set PATH, we set here for convenience.

src/app/upgrade.h

@@ -83,7 +83,7 @@ bool userAcceptsUpgrade()
     msgBox.move(Utils::Misc::screenCenter(&msgBox));
     if (msgBox.exec() == QMessageBox::Ok)
         return true;
-#endif
+#endif // DISABLE_GUI
 
     return false;
 }

src/base/bittorrent/session.cpp

@@ -469,7 +469,7 @@ Session::Session(QObject *parent)
     });
 
     configurePeerClasses();
-#endif
+#endif // LIBTORRENT_VERSION_NUM < 10100
 
     // Enabling plugins
     //m_nativeSession->add_extension(&libt::create_metadata_plugin);
@@ -1253,7 +1253,7 @@ void Session::configure(libtorrent::settings_pack &settingsPack)
         }
 #else
         settingsPack.set_str(libt::settings_pack::outgoing_interfaces, networkInterface().toStdString());
-#endif
+#endif // Q_OS_WIN
         m_listenInterfaceChanged = false;
     }
 
@@ -1462,7 +1462,7 @@ void Session::configurePeerClasses()
                    , 1 << libt::session::global_peer_class_id);
     }
     catch (std::exception &) {}
-#endif
+#endif // TORRENT_USE_IPV6
     if (ignoreLimitsOnLAN()) {
         // local networks
         f.add_rule(libt::address_v4::from_string("10.0.0.0")
@@ -1501,7 +1501,7 @@ void Session::configurePeerClasses()
                        , 1 << libt::session::local_peer_class_id);
         }
         catch (std::exception &) {}
-#endif
+#endif // TORRENT_USE_IPV6
     }
     m_nativeSession->set_peer_class_filter(f);
 
@@ -1518,7 +1518,7 @@ void Session::configurePeerClasses()
     m_nativeSession->set_peer_class_type_filter(peerClassTypeFilter);
 }
 
-#else
+#else // LIBTORRENT_VERSION_NUM >= 10100
 
 void Session::adjustLimits(libt::session_settings &sessionSettings)
 {
@@ -1735,7 +1735,7 @@ void Session::configure(libtorrent::session_settings &sessionSettings)
         break;
     }
 }
-#endif
+#endif // LIBTORRENT_VERSION_NUM >= 10100
 
 void Session::enableTracker(bool enable)
 {
@@ -1983,8 +1983,8 @@ void Session::increaseTorrentsPriority(const QStringList &hashes)
             std::greater<QPair<int, TorrentHandle *>>> torrentQueue;
 
     // Sort torrents by priority
-    foreach (const InfoHash &hash, hashes) {
+    foreach (const InfoHash &infoHash, hashes) {
-        TorrentHandle *const torrent = m_torrents.value(hash);
+        TorrentHandle *const torrent = m_torrents.value(infoHash);
         if (torrent && !torrent->isSeed())
             torrentQueue.push(qMakePair(torrent->queuePosition(), torrent));
     }
@@ -2006,8 +2006,8 @@ void Session::decreaseTorrentsPriority(const QStringList &hashes)
             std::less<QPair<int, TorrentHandle *>>> torrentQueue;
 
     // Sort torrents by priority
-    foreach (const InfoHash &hash, hashes) {
+    foreach (const InfoHash &infoHash, hashes) {
-        TorrentHandle *const torrent = m_torrents.value(hash);
+        TorrentHandle *const torrent = m_torrents.value(infoHash);
         if (torrent && !torrent->isSeed())
             torrentQueue.push(qMakePair(torrent->queuePosition(), torrent));
     }
@@ -2032,8 +2032,8 @@ void Session::topTorrentsPriority(const QStringList &hashes)
             std::greater<QPair<int, TorrentHandle *>>> torrentQueue;
 
     // Sort torrents by priority
-    foreach (const InfoHash &hash, hashes) {
+    foreach (const InfoHash &infoHash, hashes) {
-        TorrentHandle *const torrent = m_torrents.value(hash);
+        TorrentHandle *const torrent = m_torrents.value(infoHash);
         if (torrent && !torrent->isSeed())
             torrentQueue.push(qMakePair(torrent->queuePosition(), torrent));
     }
@@ -2055,8 +2055,8 @@ void Session::bottomTorrentsPriority(const QStringList &hashes)
             std::less<QPair<int, TorrentHandle *>>> torrentQueue;
 
     // Sort torrents by priority
-    foreach (const InfoHash &hash, hashes) {
+    foreach (const InfoHash &infoHash, hashes) {
-        TorrentHandle *const torrent = m_torrents.value(hash);
+        TorrentHandle *const torrent = m_torrents.value(infoHash);
         if (torrent && !torrent->isSeed())
             torrentQueue.push(qMakePair(torrent->queuePosition(), torrent));
     }
@@ -2397,7 +2397,7 @@ void Session::saveResumeData()
             break;
         }
 
-        for (const auto a: alerts) {
+        for (const auto a : alerts) {
             switch (a->type()) {
             case libt::save_resume_data_failed_alert::alert_type:
             case libt::save_resume_data_alert::alert_type:
@@ -2598,7 +2598,7 @@ void Session::configureListeningInterface()
 #else
     m_listenInterfaceChanged = true;
     configureDeferred();
-#endif
+#endif // LIBTORRENT_VERSION_NUM < 10100
 }
 
 int Session::globalDownloadSpeedLimit() const
@@ -3011,7 +3011,7 @@ void Session::setMaxConnectionsPerTorrent(int max)
         m_maxConnectionsPerTorrent = max;
 
         // Apply this to all session torrents
-        for (const auto &handle: m_nativeSession->get_torrents()) {
+        for (const auto &handle : m_nativeSession->get_torrents()) {
             if (!handle.is_valid()) continue;
             try {
                 handle.set_max_connections(max);
@@ -3033,7 +3033,7 @@ void Session::setMaxUploadsPerTorrent(int max)
         m_maxUploadsPerTorrent = max;
 
         // Apply this to all session torrents
-        for (const auto &handle: m_nativeSession->get_torrents()) {
+        for (const auto &handle : m_nativeSession->get_torrents()) {
             if (!handle.is_valid()) continue;
             try {
                 handle.set_max_uploads(max);
@@ -4095,7 +4095,7 @@ void Session::readAlerts()
     std::vector<libt::alert *> alerts;
     getPendingAlerts(alerts);
 
-    for (const auto a: alerts) {
+    for (const auto a : alerts) {
         handleAlert(a);
 #if LIBTORRENT_VERSION_NUM < 10100
         delete a;
@@ -4502,7 +4502,7 @@ void Session::handleSessionStatsAlert(libt::session_stats_alert *p)
 
     emit statsUpdated();
 }
-#else
+#else // LIBTORRENT_VERSION_NUM >= 10100
 void Session::updateStats()
 {
     libt::session_status ss = m_nativeSession->status();
@@ -4539,7 +4539,7 @@ void Session::updateStats()
 
     emit statsUpdated();
 }
-#endif
+#endif // LIBTORRENT_VERSION_NUM >= 10100
 
 void Session::handleStateUpdateAlert(libt::state_update_alert *p)
 {

src/base/bittorrent/session.h

@@ -237,7 +237,7 @@ namespace BitTorrent
             int diskJobTime = 0;
         } disk;
     };
-#endif
+#endif // LIBTORRENT_VERSION_NUM >= 10100
 
     class Session : public QObject
     {

src/base/bittorrent/torrenthandle.cpp

@@ -158,14 +158,14 @@ namespace
 {
     // new constructor is available
     template<typename T, typename std::enable_if<std::is_constructible<T, libt::torrent_info, bool>::value, int>::type = 0>
-    T makeTorrentCreator(const libtorrent::torrent_info & ti)
+    T makeTorrentCreator(const libtorrent::torrent_info &ti)
     {
         return T(ti, true);
     }
 
     // new constructor isn't available
     template<typename T, typename std::enable_if<!std::is_constructible<T, libt::torrent_info, bool>::value, int>::type = 0>
-    T makeTorrentCreator(const libtorrent::torrent_info & ti)
+    T makeTorrentCreator(const libtorrent::torrent_info &ti)
     {
         return T(ti);
     }

src/base/bittorrent/torrentinfo.cpp

@@ -350,7 +350,7 @@ void TorrentInfo::renameFile(const int index, const QString &newPath)
     nativeInfo()->rename_file(index, Utils::Fs::toNativePath(newPath).toStdString());
 }
 
-int BitTorrent::TorrentInfo::fileIndex(const QString& fileName) const
+int BitTorrent::TorrentInfo::fileIndex(const QString &fileName) const
 {
     // the check whether the object is valid is not needed here
     // because if filesCount() returns -1 the loop exits immediately

src/base/http/types.h

@@ -107,7 +107,7 @@ namespace Http
         uint code;
         QString text;
 
-        ResponseStatus(uint code = 200, const QString& text = "OK"): code(code), text(text) {}
+        ResponseStatus(uint code = 200, const QString &text = "OK"): code(code), text(text) {}
     };
 
     struct Response
@@ -116,7 +116,7 @@ namespace Http
         QStringMap headers;
         QByteArray content;
 
-        Response(uint code = 200, const QString& text = "OK"): status(code, text) {}
+        Response(uint code = 200, const QString &text = "OK"): status(code, text) {}
     };
 }
 

src/base/net/smtp.cpp

@@ -291,7 +291,7 @@ QByteArray Smtp::encodeMimeHeader(const QString &key, const QString &value, QTex
     if (!prefix.isEmpty()) line += prefix;
     if (!value.contains("=?") && latin1->canEncode(value)) {
         bool firstWord = true;
-        foreach (const QByteArray& word, value.toLatin1().split(' ')) {
+        foreach (const QByteArray &word, value.toLatin1().split(' ')) {
             if (line.size() > 78) {
                 rv = rv + line + "\r\n";
                 line.clear();

src/base/preferences.cpp

@@ -212,7 +212,7 @@ void Preferences::setCloseToTrayNotified(bool b)
 {
     setValue("Preferences/General/CloseToTrayNotified", b);
 }
-#endif
+#endif // Q_OS_MAC
 
 bool Preferences::isToolbarDisplayed() const
 {
@@ -293,7 +293,7 @@ void Preferences::setWinStartup(bool b)
         settings.remove("qBittorrent");
     }
 }
-#endif
+#endif // Q_OS_WIN
 
 // Downloads
 QString Preferences::lastLocationPath() const
@@ -967,7 +967,7 @@ void Preferences::setMagnetLinkAssoc(bool set)
 
     SHChangeNotify(SHCNE_ASSOCCHANGED, SHCNF_IDLIST, 0, 0);
 }
-#endif
+#endif // Q_OS_WIN
 
 #ifdef Q_OS_MAC
 namespace
@@ -1023,7 +1023,7 @@ void Preferences::setMagnetLinkAssoc()
     CFStringRef myBundleId = CFBundleGetIdentifier(CFBundleGetMainBundle());
     LSSetDefaultHandlerForURLScheme(magnetUrlScheme, myBundleId);
 }
-#endif
+#endif // Q_OS_MAC
 
 int Preferences::getTrackerPort() const
 {

src/base/preferences.h

@@ -299,7 +299,7 @@ public:
     void setCloseToTrayNotified(bool b);
     TrayIcon::Style trayIconStyle() const;
     void setTrayIconStyle(TrayIcon::Style style);
-#endif
+#endif // Q_OS_MAC
 
     // Stuff that don't appear in the Options GUI but are saved
     // in the same file.

src/base/rss/private/rss_parser.cpp

@@ -439,9 +439,9 @@ namespace
         int dayOfWeek = -1;
         if (!parts[nwday].isEmpty()) {
             // Look up the weekday name
-            while (++dayOfWeek < 7 && (shortDay[dayOfWeek] != parts[nwday]));
+            while ((++dayOfWeek < 7) && (shortDay[dayOfWeek] != parts[nwday]));
             if (dayOfWeek >= 7)
-                for (dayOfWeek = 0; dayOfWeek < 7 && (longDay[dayOfWeek] != parts[nwday]); ++dayOfWeek);
+                for (dayOfWeek = 0; (dayOfWeek < 7) && (longDay[dayOfWeek] != parts[nwday]); ++dayOfWeek);
         }
 
         //       if (month >= 12 || dayOfWeek >= 7
@@ -450,7 +450,7 @@ namespace
         int i = parts[nyear].size();
         if (i < 4) {
             // It's an obsolete year specification with less than 4 digits
-            year += (i == 2  &&  year < 50) ? 2000 : 1900;
+            year += ((i == 2) && (year < 50)) ? 2000 : 1900;
         }
 
         // Parse the UTC offset part
@@ -473,17 +473,17 @@ namespace
             else {
                 // Check for an obsolete time zone name
                 QByteArray zone = parts[10].toLatin1();
-                if (zone.length() == 1  &&  isalpha(zone[0])  &&  toupper(zone[0]) != 'J') {
+                if ((zone.length() == 1) && (isalpha(zone[0])) && (toupper(zone[0]) != 'J')) {
                     negOffset = true;    // military zone: RFC 2822 treats as '-0000'
                 }
-                else if (zone != "UT" && zone != "GMT") { // treated as '+0000'
+                else if ((zone != "UT") && (zone != "GMT")) { // treated as '+0000'
                     offset = (zone == "EDT")
                             ? -4 * 3600
                             : ((zone == "EST") || (zone == "CDT"))
                               ? -5 * 3600
                               : ((zone == "CST") || (zone == "MDT"))
                                 ? -6 * 3600
-                                : (zone == "MST" || zone == "PDT")
+                                : ((zone == "MST") || (zone == "PDT"))
                                   ? -7 * 3600
                                   : (zone == "PST")
                                     ? -8 * 3600
@@ -502,12 +502,12 @@ namespace
             }
         }
 
-        QDate qdate(year, month + 1, day);   // convert date, and check for out-of-range
+        QDate qDate(year, month + 1, day);   // convert date, and check for out-of-range
-        if (!qdate.isValid())
+        if (!qDate.isValid())
             return QDateTime::currentDateTime();
 
         QTime qTime(hour, minute, second);
-        QDateTime result(qdate, qTime, Qt::UTC);
+        QDateTime result(qDate, qTime, Qt::UTC);
         if (offset)
             result = result.addSecs(-offset);
         if (!result.isValid())

src/base/rss/rss_autodownloader.cpp

@@ -373,7 +373,7 @@ void AutoDownloader::addJobForArticle(Article *article)
 
 void AutoDownloader::processJob(const QSharedPointer<ProcessingJob> &job)
 {
-    for (AutoDownloadRule &rule: m_rules) {
+    for (AutoDownloadRule &rule : m_rules) {
         if (!rule.isEnabled()) continue;
         if (!rule.feedURLs().contains(job->feedURL)) continue;
         if (!rule.accepts(job->articleData)) continue;

src/base/rss/rss_autodownloadrule.cpp

@@ -246,7 +246,7 @@ bool AutoDownloadRule::matchesMustContainExpression(const QString &articleTitle)
     return false;
 }
 
-bool AutoDownloadRule::matchesMustNotContainExpression(const QString& articleTitle) const
+bool AutoDownloadRule::matchesMustNotContainExpression(const QString &articleTitle) const
 {
     if (m_dataPtr->mustNotContain.empty())
         return true;
@@ -262,7 +262,7 @@ bool AutoDownloadRule::matchesMustNotContainExpression(const QString& articleTit
     return true;
 }
 
-bool AutoDownloadRule::matchesEpisodeFilterExpression(const QString& articleTitle) const
+bool AutoDownloadRule::matchesEpisodeFilterExpression(const QString &articleTitle) const
 {
     // Reset the lastComputedEpisode, we don't want to leak it between matches
     m_dataPtr->lastComputedEpisode.clear();
@@ -332,7 +332,7 @@ bool AutoDownloadRule::matchesEpisodeFilterExpression(const QString& articleTitl
     return false;
 }
 
-bool AutoDownloadRule::matchesSmartEpisodeFilter(const QString& articleTitle) const
+bool AutoDownloadRule::matchesSmartEpisodeFilter(const QString &articleTitle) const
 {
     if (!useSmartFilter())
         return true;

src/base/rss/rss_folder.cpp

@@ -123,7 +123,7 @@ void Folder::addItem(Item *item)
     connect(item, &Item::articleAboutToBeRemoved, this, &Item::articleAboutToBeRemoved);
     connect(item, &Item::unreadCountChanged, this, &Folder::handleItemUnreadCountChanged);
 
-    for (auto article: copyAsConst(item->articles()))
+    for (auto article : copyAsConst(item->articles()))
         emit newArticle(article);
 
     if (item->unreadCount() > 0)
@@ -134,7 +134,7 @@ void Folder::removeItem(Item *item)
 {
     Q_ASSERT(m_items.contains(item));
 
-    for (auto article: copyAsConst(item->articles()))
+    for (auto article : copyAsConst(item->articles()))
         emit articleAboutToBeRemoved(article);
 
     item->disconnect(this);

src/base/utils/foreignapps.cpp

@@ -229,7 +229,7 @@ namespace
 
         return QString();
     }
-#endif
+#endif // Q_OS_WIN
 }
 
 bool Utils::ForeignApps::PythonInfo::isValid() const

src/base/utils/fs.cpp

@@ -329,7 +329,7 @@ bool Utils::Fs::isNetworkFileSystem(const QString &path)
     return ((strncmp(buf.f_fstypename, "cifs", sizeof(buf.f_fstypename)) == 0)
         || (strncmp(buf.f_fstypename, "nfs", sizeof(buf.f_fstypename)) == 0)
         || (strncmp(buf.f_fstypename, "smbfs", sizeof(buf.f_fstypename)) == 0));
-#else
+#else // Q_OS_WIN
     QString file = path;
     if (!file.endsWith('/'))
         file += '/';
@@ -351,6 +351,6 @@ bool Utils::Fs::isNetworkFileSystem(const QString &path)
     default:
         return false;
     }
-#endif
+#endif // Q_OS_WIN
 }
-#endif
+#endif // Q_OS_HAIKU

src/base/utils/misc.cpp

@@ -66,7 +66,7 @@
 #if defined(Q_OS_UNIX) && !defined(Q_OS_MAC)
 #include "base/utils/version.h"
 #endif
-#endif
+#endif // DISABLE_GUI
 
 #include "base/logger.h"
 #include "base/unicodestrings.h"

src/base/utils/misc.h

@@ -124,7 +124,7 @@ namespace Utils
             return reinterpret_cast<T>(
                 ::GetProcAddress(::LoadLibraryW(pathWchar.get()), funcName));
         }
-#endif
+#endif // Q_OS_WIN
     }
 }
 

src/gui/advancedsettings.cpp

@@ -425,7 +425,7 @@ void AdvancedSettings::loadAdvancedSettings()
     const QString currentInterface = session->networkInterface();
     bool interfaceExists = currentInterface.isEmpty();
     int i = 1;
-    foreach (const QNetworkInterface& iface, QNetworkInterface::allInterfaces()) {
+    foreach (const QNetworkInterface &iface, QNetworkInterface::allInterfaces()) {
         // This line fixes a Qt bug => https://bugreports.qt.io/browse/QTBUG-52633
         // Tested in Qt 5.6.0. For more info see:
         // https://github.com/qbittorrent/qBittorrent/issues/5131

src/gui/fspathedit.cpp

@@ -350,7 +350,7 @@ void FileSystemPathComboEdit::addItem(const QString &text)
     editWidget<WidgetType>()->addItem(Utils::Fs::toNativePath(text));
 }
 
-void FileSystemPathComboEdit::insertItem(int index, const QString& text)
+void FileSystemPathComboEdit::insertItem(int index, const QString &text)
 {
     editWidget<WidgetType>()->insertItem(index, Utils::Fs::toNativePath(text));
 }

src/gui/mainwindow.cpp

@@ -305,7 +305,7 @@ MainWindow::MainWindow(QWidget *parent)
         spacer->setMinimumWidth(8);
         m_ui->toolBar->addWidget(spacer);
     }
-#endif
+#endif // Q_OS_MAC
 
     // Transfer list slots
     connect(m_ui->actionStart, &QAction::triggered, m_transferListWidget, &TransferListWidget::startSelectedTorrents);
@@ -1110,7 +1110,7 @@ void MainWindow::toggleVisibility(const QSystemTrayIcon::ActivationReason reason
         break;
     }
 }
-#endif
+#endif // Q_OS_MAC
 
 // Display About Dialog
 void MainWindow::on_actionAbout_triggered()
@@ -1272,7 +1272,7 @@ bool MainWindow::event(QEvent *e)
     default:
         break;
     }
-#endif
+#endif // Q_OS_MAC
 
     return QMainWindow::event(e);
 }
@@ -1361,7 +1361,7 @@ void MainWindow::setupDockClickHandler()
     MacUtils::overrideDockClickHandler(dockClickHandler);
 }
 
-#endif
+#endif // Q_OS_MAC
 
 /*****************************************************
 *                                                   *

src/gui/optionsdialog.cpp

@@ -148,7 +148,7 @@ OptionsDialog::OptionsDialog(QWidget *parent)
     QList<QAbstractButton *> buttons = m_ui->buttonBox->buttons();
     foreach (QAbstractButton *button, buttons) {
         if (m_ui->buttonBox->buttonRole(button) == QDialogButtonBox::ApplyRole) {
-            applyButton = button;
+            m_applyButton = button;
             break;
         }
     }
@@ -410,13 +410,13 @@ OptionsDialog::OptionsDialog(QWidget *parent)
     connect(m_ui->btnEditRules, &QPushButton::clicked, this, [this]() { AutomatedRssDownloader(this).exec(); });
 
     // Disable apply Button
-    applyButton->setEnabled(false);
+    m_applyButton->setEnabled(false);
     // Tab selection mechanism
     connect(m_ui->tabSelection, &QListWidget::currentItemChanged, this, &ThisType::changePage);
     // Load Advanced settings
-    advancedSettings = new AdvancedSettings(m_ui->tabAdvancedPage);
+    m_advancedSettings = new AdvancedSettings(m_ui->tabAdvancedPage);
-    m_ui->advPageLayout->addWidget(advancedSettings);
+    m_ui->advPageLayout->addWidget(m_advancedSettings);
-    connect(advancedSettings, &AdvancedSettings::settingsChanged, this, &ThisType::enableApplyButton);
+    connect(m_advancedSettings, &AdvancedSettings::settingsChanged, this, &ThisType::enableApplyButton);
 
     m_ui->textFileLogPath->setDialogCaption(tr("Choose a save directory"));
     m_ui->textFileLogPath->setMode(FileSystemPathEdit::Mode::DirectorySave);
@@ -479,7 +479,7 @@ OptionsDialog::~OptionsDialog()
 
     saveWindowState();
 
-    foreach (const QString &path, addedScanDirs)
+    foreach (const QString &path, m_addedScanDirs)
         ScanFoldersModel::instance()->removePath(path);
     ScanFoldersModel::instance()->configure(); // reloads "removed" paths
     delete m_ui;
@@ -527,7 +527,7 @@ void OptionsDialog::saveWindowState() const
 
 void OptionsDialog::saveOptions()
 {
-    applyButton->setEnabled(false);
+    m_applyButton->setEnabled(false);
     Preferences *const pref = Preferences::instance();
     // Load the translation
     QString locale = getLocale();
@@ -611,11 +611,11 @@ void OptionsDialog::saveOptions()
     AddNewTorrentDialog::setTopLevel(m_ui->checkAdditionDialogFront->isChecked());
     session->setAddTorrentPaused(addTorrentsInPause());
     session->setCreateTorrentSubfolder(m_ui->checkCreateSubfolder->isChecked());
-    ScanFoldersModel::instance()->removeFromFSWatcher(removedScanDirs);
+    ScanFoldersModel::instance()->removeFromFSWatcher(m_removedScanDirs);
-    ScanFoldersModel::instance()->addToFSWatcher(addedScanDirs);
+    ScanFoldersModel::instance()->addToFSWatcher(m_addedScanDirs);
     ScanFoldersModel::instance()->makePersistent();
-    removedScanDirs.clear();
+    m_removedScanDirs.clear();
-    addedScanDirs.clear();
+    m_addedScanDirs.clear();
     session->setTorrentExportDirectory(getTorrentExportDir());
     session->setFinishedTorrentExportDirectory(getFinishedTorrentExportDir());
     pref->setMailNotificationEnabled(m_ui->groupMailNotification->isChecked());
@@ -734,7 +734,7 @@ void OptionsDialog::saveOptions()
     // End Web UI
     // End preferences
     // Save advanced settings
-    advancedSettings->saveAdvancedSettings();
+    m_advancedSettings->saveAdvancedSettings();
     // Assume that user changed multiple settings
     // so it's best to save immediately
     pref->apply();
@@ -1226,7 +1226,7 @@ int OptionsDialog::getMaxUploadsPerTorrent() const
 
 void OptionsDialog::on_buttonBox_accepted()
 {
-    if (applyButton->isEnabled()) {
+    if (m_applyButton->isEnabled()) {
         if (!schedTimesOk()) {
             m_ui->tabSelection->setCurrentRow(TAB_SPEED);
             return;
@@ -1235,7 +1235,7 @@ void OptionsDialog::on_buttonBox_accepted()
             m_ui->tabSelection->setCurrentRow(TAB_WEBUI);
             return;
         }
-        applyButton->setEnabled(false);
+        m_applyButton->setEnabled(false);
         this->hide();
         saveOptions();
     }
@@ -1245,7 +1245,7 @@ void OptionsDialog::on_buttonBox_accepted()
 
 void OptionsDialog::applySettings(QAbstractButton *button)
 {
-    if (button == applyButton) {
+    if (button == m_applyButton) {
         if (!schedTimesOk()) {
             m_ui->tabSelection->setCurrentRow(TAB_SPEED);
             return;
@@ -1277,7 +1277,7 @@ bool OptionsDialog::useAdditionDialog() const
 
 void OptionsDialog::enableApplyButton()
 {
-    applyButton->setEnabled(true);
+    m_applyButton->setEnabled(true);
 }
 
 void OptionsDialog::toggleComboRatioLimitAct()
@@ -1472,7 +1472,7 @@ void OptionsDialog::on_addScanFolderButton_clicked()
             break;
         default:
             pref->setScanDirsLastPath(dir);
-            addedScanDirs << dir;
+            m_addedScanDirs << dir;
             for (int i = 0; i < ScanFoldersModel::instance()->columnCount(); ++i)
                 m_ui->scanFoldersView->resizeColumnToContents(i);
             enableApplyButton();
@@ -1492,7 +1492,7 @@ void OptionsDialog::on_removeScanFolderButton_clicked()
     Q_ASSERT(selected.count() == ScanFoldersModel::instance()->columnCount());
     foreach (const QModelIndex &index, selected) {
         if (index.column() == ScanFoldersModel::WATCH)
-            removedScanDirs << index.data().toString();
+            m_removedScanDirs << index.data().toString();
     }
     ScanFoldersModel::instance()->removePath(selected.first().row(), false);
 }

src/gui/optionsdialog.h

@@ -176,11 +176,10 @@ private:
     QByteArray m_sslCert, m_sslKey;
 
     Ui::OptionsDialog *m_ui;
-    QButtonGroup choiceLanguage;
+    QAbstractButton *m_applyButton;
-    QAbstractButton *applyButton;
+    AdvancedSettings *m_advancedSettings;
-    AdvancedSettings *advancedSettings;
+    QList<QString> m_addedScanDirs;
-    QList<QString> addedScanDirs;
+    QList<QString> m_removedScanDirs;
-    QList<QString> removedScanDirs;
 };
 
 #endif // OPTIONSDIALOG_H

src/gui/programupdater.cpp

@@ -141,7 +141,7 @@ bool ProgramUpdater::isVersionMoreRecent(const QString &remoteVersion) const
         qDebug() << Q_FUNC_INFO << "local version:" << localVersion << "/" << QBT_VERSION;
         QStringList remoteParts = remoteVersion.split('.');
         QStringList localParts = localVersion.split('.');
-        for (int i = 0; i<qMin(remoteParts.size(), localParts.size()); ++i) {
+        for (int i = 0; i < qMin(remoteParts.size(), localParts.size()); ++i) {
             if (remoteParts[i].toInt() > localParts[i].toInt())
                 return true;
             if (remoteParts[i].toInt() < localParts[i].toInt())

src/gui/properties/peerlistwidget.cpp

@@ -103,7 +103,7 @@ PeerListWidget::PeerListWidget(PropertiesWidget *parent)
         hideColumn(PeerListDelegate::COUNTRY);
     // Ensure that at least one column is visible at all times
     bool atLeastOne = false;
-    for (unsigned int i = 0; i < PeerListDelegate::IP_HIDDEN; ++i) {
+    for (int i = 0; i < PeerListDelegate::IP_HIDDEN; ++i) {
         if (!isColumnHidden(i)) {
             atLeastOne = true;
             break;
@@ -114,7 +114,7 @@ PeerListWidget::PeerListWidget(PropertiesWidget *parent)
     // To also mitigate the above issue, we have to resize each column when
     // its size is 0, because explicitly 'showing' the column isn't enough
     // in the above scenario.
-    for (unsigned int i = 0; i < PeerListDelegate::IP_HIDDEN; ++i)
+    for (int i = 0; i < PeerListDelegate::IP_HIDDEN; ++i)
         if ((columnWidth(i) <= 0) && !isColumnHidden(i))
             resizeColumnToContents(i);
     // Context menu
@@ -169,7 +169,7 @@ void PeerListWidget::displayToggleColumnsMenu(const QPoint &)
         actions.append(myAct);
     }
     int visibleCols = 0;
-    for (unsigned int i = 0; i < PeerListDelegate::IP_HIDDEN; ++i) {
+    for (int i = 0; i < PeerListDelegate::IP_HIDDEN; ++i) {
         if (!isColumnHidden(i))
             ++visibleCols;
 

src/gui/properties/piecesbar.cpp

@@ -275,7 +275,7 @@ void PiecesBar::showToolTip(const QHelpEvent *e)
             DetailedTooltipRenderer renderer(stream, tooltipTitle);
 
             const bool isFileNameCorrectionNeeded = this->isFileNameCorrectionNeeded();
-            for (int f: files) {
+            for (int f : files) {
                 QString filePath {m_torrent->info().filePath(f)};
                 if (isFileNameCorrectionNeeded)
                     filePath.replace(QLatin1String("/.unwanted"), QString());

src/gui/search/searchsortmodel.cpp

@@ -126,7 +126,7 @@ bool SearchSortModel::filterAcceptsRow(int sourceRow, const QModelIndex &sourceP
     const QAbstractItemModel *const sourceModel = this->sourceModel();
     if (m_isNameFilterEnabled && !m_searchTerm.isEmpty()) {
         QString name = sourceModel->data(sourceModel->index(sourceRow, NAME, sourceParent)).toString();
-        for (const QString &word: m_searchTermWords) {
+        for (const QString &word : m_searchTermWords) {
             int i = name.indexOf(word, 0, Qt::CaseInsensitive);
             if (i == -1) {
                 return false;

src/gui/torrentcontentmodel.cpp

@@ -146,7 +146,7 @@ namespace
 #elif defined(Q_OS_MAC)
     // There is a similar bug on macOS, to be reported to Qt
     // https://github.com/qbittorrent/qBittorrent/pull/6156#issuecomment-316302615
-    class MacFileIconProvider final: public CachingFileIconProvider
+    class MacFileIconProvider final : public CachingFileIconProvider
     {
         QPixmap pixmapForExtension(const QString &ext) const override
         {
@@ -346,7 +346,7 @@ int TorrentContentModel::getFileIndex(const QModelIndex &index)
     return -1;
 }
 
-QVariant TorrentContentModel::data(const QModelIndex& index, int role) const
+QVariant TorrentContentModel::data(const QModelIndex &index, int role) const
 {
     if (!index.isValid())
         return QVariant();

src/gui/torrentcontentmodel.h

@@ -54,13 +54,13 @@ public:
     QVector<int> getFilePriorities() const;
     bool allFiltered() const;
     int columnCount(const QModelIndex &parent = QModelIndex()) const override;
-    bool setData(const QModelIndex &index, const QVariant& value, int role = Qt::EditRole) override;
+    bool setData(const QModelIndex &index, const QVariant &value, int role = Qt::EditRole) override;
     TorrentContentModelItem::ItemType itemType(const QModelIndex &index) const;
     int getFileIndex(const QModelIndex &index);
     QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
     Qt::ItemFlags flags(const QModelIndex &index) const override;
     QVariant headerData(int section, Qt::Orientation orientation, int role) const override;
-    QModelIndex index(int row, int column, const QModelIndex& parent = QModelIndex()) const override;
+    QModelIndex index(int row, int column, const QModelIndex &parent = QModelIndex()) const override;
     QModelIndex parent(const QModelIndex &index) const override;
     int rowCount(const QModelIndex &parent = QModelIndex()) const override;
     void clear();

src/gui/transferlistfilterswidget.cpp

@@ -404,7 +404,7 @@ void TrackerFiltersList::trackerWarning(const QString &hash, const QString &trac
         applyFilter(3);
 }
 
-void TrackerFiltersList::downloadFavicon(const QString& url)
+void TrackerFiltersList::downloadFavicon(const QString &url)
 {
     if (!m_downloadTrackerFavicon) return;
     Net::DownloadHandler *h = Net::DownloadManager::instance()->download(
@@ -416,7 +416,7 @@ void TrackerFiltersList::downloadFavicon(const QString& url)
             , &TrackerFiltersList::handleFavicoFailure);
 }
 
-void TrackerFiltersList::handleFavicoDownload(const QString& url, const QString& filePath)
+void TrackerFiltersList::handleFavicoDownload(const QString &url, const QString &filePath)
 {
     QString host = url.startsWith(GOOGLE_FAVICON_URL)
                             ? url.mid(GOOGLE_FAVICON_URL.size())

src/gui/transferlistmodel.h

@@ -83,7 +83,7 @@ public:
 
     explicit TransferListModel(QObject *parent = nullptr);
 
-    int rowCount(const QModelIndex& index = QModelIndex()) const override;
+    int rowCount(const QModelIndex &index = QModelIndex()) const override;
     int columnCount(const QModelIndex &parent=QModelIndex()) const override;
     QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
     bool setData(const QModelIndex &index, const QVariant &value, int role) override;

src/gui/transferlistwidget.cpp

@@ -582,7 +582,7 @@ void TransferListWidget::openSelectedTorrentsFolder() const
         }
         pathsList.insert(path);
     }
-#endif
+#endif // Q_OS_MAC
 }
 
 void TransferListWidget::previewSelectedTorrents()
@@ -595,16 +595,16 @@ void TransferListWidget::previewSelectedTorrents()
 
 void TransferListWidget::setDlLimitSelectedTorrents()
 {
-    QList<BitTorrent::TorrentHandle *> TorrentsList;
+    QList<BitTorrent::TorrentHandle *> torrentsList;
     foreach (BitTorrent::TorrentHandle *const torrent, getSelectedTorrents()) {
         if (torrent->isSeed())
             continue;
-        TorrentsList += torrent;
+        torrentsList += torrent;
     }
-    if (TorrentsList.empty()) return;
+    if (torrentsList.empty()) return;
 
-    int oldLimit = TorrentsList.first()->downloadLimit();
+    int oldLimit = torrentsList.first()->downloadLimit();
-    foreach (BitTorrent::TorrentHandle *const torrent, TorrentsList) {
+    foreach (BitTorrent::TorrentHandle *const torrent, torrentsList) {
         if (torrent->downloadLimit() != oldLimit) {
             oldLimit = -1;
             break;
@@ -617,7 +617,7 @@ void TransferListWidget::setDlLimitSelectedTorrents()
                 , BitTorrent::Session::instance()->globalDownloadSpeedLimit());
     if (!ok) return;
 
-    foreach (BitTorrent::TorrentHandle *const torrent, TorrentsList) {
+    foreach (BitTorrent::TorrentHandle *const torrent, torrentsList) {
         qDebug("Applying download speed limit of %ld Kb/s to torrent %s", (newLimit / 1024l), qUtf8Printable(torrent->hash()));
         torrent->setDownloadLimit(newLimit);
     }
@@ -625,11 +625,11 @@ void TransferListWidget::setDlLimitSelectedTorrents()
 
 void TransferListWidget::setUpLimitSelectedTorrents()
 {
-    QList<BitTorrent::TorrentHandle *> TorrentsList = getSelectedTorrents();
+    QList<BitTorrent::TorrentHandle *> torrentsList = getSelectedTorrents();
-    if (TorrentsList.empty()) return;
+    if (torrentsList.empty()) return;
 
-    int oldLimit = TorrentsList.first()->uploadLimit();
+    int oldLimit = torrentsList.first()->uploadLimit();
-    foreach (BitTorrent::TorrentHandle *const torrent, TorrentsList) {
+    foreach (BitTorrent::TorrentHandle *const torrent, torrentsList) {
         if (torrent->uploadLimit() != oldLimit) {
             oldLimit = -1;
             break;
@@ -642,7 +642,7 @@ void TransferListWidget::setUpLimitSelectedTorrents()
                 , BitTorrent::Session::instance()->globalUploadSpeedLimit());
     if (!ok) return;
 
-    foreach (BitTorrent::TorrentHandle *const torrent, TorrentsList) {
+    foreach (BitTorrent::TorrentHandle *const torrent, torrentsList) {
         qDebug("Applying upload speed limit of %ld Kb/s to torrent %s", (newLimit / 1024l), qUtf8Printable(torrent->hash()));
         torrent->setUploadLimit(newLimit);
     }
@@ -1144,7 +1144,7 @@ void TransferListWidget::displayListMenu(const QPoint&)
     }
 }
 
-void TransferListWidget::currentChanged(const QModelIndex& current, const QModelIndex&)
+void TransferListWidget::currentChanged(const QModelIndex &current, const QModelIndex&)
 {
     qDebug("CURRENT CHANGED");
     BitTorrent::TorrentHandle *torrent = nullptr;

src/gui/transferlistwidget.h

@@ -106,7 +106,7 @@ protected:
 protected slots:
     void torrentDoubleClicked();
     void displayListMenu(const QPoint&);
-    void currentChanged(const QModelIndex& current, const QModelIndex&) override;
+    void currentChanged(const QModelIndex &current, const QModelIndex&) override;
     void toggleSelectedTorrentsSuperSeeding() const;
     void toggleSelectedTorrentsSequentialDownload() const;
     void toggleSelectedFirstLastPiecePrio() const;