diff --git a/src/app/application.cpp b/src/app/application.cpp
index 88076b7f4..d91ed50db 100644
--- a/src/app/application.cpp
+++ b/src/app/application.cpp
@@ -31,10 +31,6 @@
 
 #include <algorithm>
 
-#ifdef Q_OS_WIN
-#include <memory>
-#endif
-
 #include <QAtomicInt>
 #include <QDebug>
 #include <QFileInfo>
@@ -43,6 +39,29 @@
 #include <QProcess>
 #include <QSysInfo>
 
+#ifdef Q_OS_WIN
+#include <memory>
+#include <Shellapi.h>
+#endif
+
+#ifndef DISABLE_GUI
+#ifdef Q_OS_WIN
+#include <QSessionManager>
+#include <QSharedMemory>
+#endif // Q_OS_WIN
+#ifdef Q_OS_MAC
+#include <QFileOpenEvent>
+#include <QFont>
+#include <QUrl>
+#endif // Q_OS_MAC
+#include "addnewtorrentdialog.h"
+#include "gui/guiiconprovider.h"
+#include "mainwindow.h"
+#include "shutdownconfirmdlg.h"
+#else // DISABLE_GUI
+#include <cstdio>
+#endif // DISABLE_GUI
+
 #include "base/bittorrent/session.h"
 #include "base/bittorrent/torrenthandle.h"
 #include "base/iconprovider.h"
@@ -62,28 +81,6 @@
 #include "base/utils/string.h"
 #include "filelogger.h"
 
-#ifndef DISABLE_GUI
-#ifdef Q_OS_WIN
-#include <QSessionManager>
-#include <QSharedMemory>
-#endif // Q_OS_WIN
-#ifdef Q_OS_MAC
-#include <QFileOpenEvent>
-#include <QFont>
-#include <QUrl>
-#endif // Q_OS_MAC
-#include "addnewtorrentdialog.h"
-#include "gui/guiiconprovider.h"
-#include "mainwindow.h"
-#include "shutdownconfirmdlg.h"
-#else // DISABLE_GUI
-#include <cstdio>
-#endif // DISABLE_GUI
-
-#ifdef Q_OS_WIN
-#include <Shellapi.h>
-#endif
-
 #ifndef DISABLE_WEBUI
 #include "webui/webui.h"
 #endif
@@ -102,7 +99,7 @@ namespace
     const QString KEY_FILELOGGER_AGE = FILELOGGER_SETTINGS_KEY("Age");
     const QString KEY_FILELOGGER_AGETYPE = FILELOGGER_SETTINGS_KEY("AgeType");
 
-    //just a shortcut
+    // just a shortcut
     inline SettingsStorage *settings() { return  SettingsStorage::instance(); }
 
     const QString LOG_FOLDER("logs");
@@ -261,12 +258,12 @@ void Application::setFileLoggerAge(const int value)
 int Application::fileLoggerAgeType() const
 {
     int val = settings()->loadValue(KEY_FILELOGGER_AGETYPE, 1).toInt();
-    return (val < 0 || val > 2) ? 1 : val;
+    return ((val < 0) || (val > 2)) ? 1 : val;
 }
 
 void Application::setFileLoggerAgeType(const int value)
 {
-    settings()->storeValue(KEY_FILELOGGER_AGETYPE, (value < 0 || value > 2) ? 1 : value);
+    settings()->storeValue(KEY_FILELOGGER_AGETYPE, ((value < 0) || (value > 2)) ? 1 : value);
 }
 
 void Application::processMessage(const QString &message)
@@ -338,12 +335,12 @@ void Application::runExternalProgram(const BitTorrent::TorrentHandle *torrent) c
 void Application::sendNotificationEmail(const BitTorrent::TorrentHandle *torrent)
 {
     // Prepare mail content
-    const QString content = tr("Torrent name: %1").arg(torrent->name()) + "\n"
-        + tr("Torrent size: %1").arg(Utils::Misc::friendlyUnit(torrent->wantedSize())) + "\n"
+    const QString content = tr("Torrent name: %1").arg(torrent->name()) + '\n'
+        + tr("Torrent size: %1").arg(Utils::Misc::friendlyUnit(torrent->wantedSize())) + '\n'
         + tr("Save path: %1").arg(torrent->savePath()) + "\n\n"
         + tr("The torrent was downloaded in %1.", "The torrent was downloaded in 1 hour and 20 seconds")
             .arg(Utils::Misc::userFriendlyDuration(torrent->activeTime())) + "\n\n\n"
-        + tr("Thank you for using qBittorrent.") + "\n";
+        + tr("Thank you for using qBittorrent.") + '\n';
 
     // Send the notification email
     const Preferences *pref = Preferences::instance();
@@ -523,7 +520,7 @@ int Application::exec(const QStringList &params)
 
 #ifdef DISABLE_GUI
 #ifndef DISABLE_WEBUI
-    Preferences* const pref = Preferences::instance();
+    Preferences *const pref = Preferences::instance();
     // Display some information to the user
     const QString mesg = QString("\n******** %1 ********\n").arg(tr("Information"))
         + tr("To control qBittorrent, access the Web UI at %1")
@@ -619,7 +616,7 @@ bool Application::notify(QObject *receiver, QEvent *event)
 
 void Application::initializeTranslation()
 {
-    Preferences* const pref = Preferences::instance();
+    Preferences *const pref = Preferences::instance();
     // Load translation
     QString localeStr = pref->getLocale();
 
@@ -685,7 +682,7 @@ void Application::cleanup()
 
 #ifndef DISABLE_GUI
     if (m_window) {
-        // Hide the window and not leave it on screen as
+        // Hide the window and don't leave it on screen as
         // unresponsive. Also for Windows take the WinId
         // after it's hidden, because hide() may cause a
         // WinId change.
diff --git a/src/app/application.h b/src/app/application.h
index 13517f48b..a36d72721 100644
--- a/src/app/application.h
+++ b/src/app/application.h
@@ -40,15 +40,13 @@ typedef QtSingleApplication BaseApplication;
 class MainWindow;
 
 #ifdef Q_OS_WIN
-QT_BEGIN_NAMESPACE
 class QSessionManager;
-QT_END_NAMESPACE
 #endif // Q_OS_WIN
 
 #else
 #include "qtsinglecoreapplication.h"
 typedef QtSingleCoreApplication BaseApplication;
-#endif
+#endif // DISABLE_GUI
 
 #include "base/utils/misc.h"
 #include "cmdoptions.h"
@@ -112,7 +110,7 @@ protected:
 #ifdef Q_OS_MAC
     bool event(QEvent *) override;
 #endif
-    bool notify(QObject* receiver, QEvent* event) override;
+    bool notify(QObject *receiver, QEvent *event) override;
 #endif
 
 private slots:
diff --git a/src/app/cmdoptions.cpp b/src/app/cmdoptions.cpp
index 3486ff20f..da831d654 100644
--- a/src/app/cmdoptions.cpp
+++ b/src/app/cmdoptions.cpp
@@ -2,7 +2,7 @@
  * Bittorrent Client using Qt and libtorrent.
  * Copyright (C) 2016  Eugene Shalygin <eugene.shalygin@gmail.com>
  * Copyright (C) 2014  Vladimir Golovnev <glassez@yandex.ru>
- * Copyright (C) 2006  Christophe Dumez
+ * Copyright (C) 2006  Christophe Dumez <chris@qbittorrent.org>
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -26,8 +26,6 @@
  * modify file(s), you may extend this exception to your version of the file(s),
  * but you are not obligated to do so. If you do not wish to do so, delete this
  * exception statement from your version.
- *
- * Contact : chris@qbittorrent.org
  */
 
 #include "cmdoptions.h"
@@ -100,7 +98,7 @@ namespace
     };
 
     // Boolean option.
-    class BoolOption: protected Option
+    class BoolOption : protected Option
     {
     public:
         constexpr BoolOption(const char *name, char shortcut = 0)
@@ -118,7 +116,7 @@ namespace
         {
             QString val = env.value(envVarName());
             // we accept "1" and "true" (upper or lower cased) as boolean 'true' values
-            return (val == QLatin1String("1") || val.toUpper() == QLatin1String("TRUE"));
+            return ((val == QLatin1String("1")) || (val.toUpper() == QLatin1String("TRUE")));
         }
 
         QString usage() const
@@ -137,7 +135,7 @@ namespace
     }
 
     // Option with string value. May not have a shortcut
-    struct StringOption: protected Option
+    struct StringOption : protected Option
     {
     public:
         constexpr StringOption(const char *name)
@@ -184,7 +182,7 @@ namespace
     }
 
     // Option with integer value. May not have a shortcut
-    class IntOption: protected StringOption
+    class IntOption : protected StringOption
     {
     public:
         constexpr IntOption(const char *name)
@@ -230,7 +228,7 @@ namespace
 
     // Option that is explicitly set to true or false, and whose value is undefined when unspecified.
     // May not have a shortcut.
-    class TriStateBoolOption: protected Option
+    class TriStateBoolOption : protected Option
     {
     public:
         constexpr TriStateBoolOption(const char *name, bool defaultValue)
@@ -260,10 +258,10 @@ namespace
             else if (parts.size() == 2) {
                 QString val = parts[1];
 
-                if (val.toUpper() == QLatin1String("TRUE") || val == QLatin1String("1")) {
+                if ((val.toUpper() == QLatin1String("TRUE")) || (val == QLatin1String("1"))) {
                     return TriStateBool::True;
                 }
-                else if (val.toUpper() == QLatin1String("FALSE") || val == QLatin1String("0")) {
+                else if ((val.toUpper() == QLatin1String("FALSE")) || (val == QLatin1String("0"))) {
                     return TriStateBool::False;
                 }
             }
@@ -285,10 +283,10 @@ namespace
             else if (val == QLatin1String("-1")) {
                 return TriStateBool::Undefined;
             }
-            else if (val.toUpper() == QLatin1String("TRUE") || val == QLatin1String("1")) {
+            else if ((val.toUpper() == QLatin1String("TRUE")) || (val == QLatin1String("1"))) {
                 return TriStateBool::True;
             }
-            else if (val.toUpper() == QLatin1String("FALSE") || val == QLatin1String("0")) {
+            else if ((val.toUpper() == QLatin1String("FALSE")) || (val == QLatin1String("0"))) {
                 return TriStateBool::False;
             }
             else {
@@ -360,7 +358,7 @@ QStringList QBtCommandLineParameters::paramList() const
     // the user has specified. Here we place special strings that are
     // almost certainly not going to collide with a file path or URL
     // specified by the user, and placing them at the beginning of the
-    // string listr so that they will be processed before the list of
+    // string list so that they will be processed before the list of
     // torrent paths or URLs.
 
     if (!savePath.isEmpty())
@@ -406,7 +404,7 @@ QBtCommandLineParameters parseCommandLine(const QStringList &args)
         if ((arg.startsWith("--") && !arg.endsWith(".torrent"))
             || (arg.startsWith("-") && (arg.size() == 2))) {
             // Parse known parameters
-            if ((arg == SHOW_HELP_OPTION)) {
+            if (arg == SHOW_HELP_OPTION) {
                 result.showHelp = true;
             }
 #ifndef Q_OS_WIN
@@ -509,7 +507,7 @@ QString wrapText(const QString &text, int initialIndentation = USAGE_TEXT_COLUMN
         }
     }
 
-    return lines.join("\n");
+    return lines.join('\n');
 }
 
 QString makeUsage(const QString &prgName)
diff --git a/src/app/cmdoptions.h b/src/app/cmdoptions.h
index 0a406cb6c..fcd89e0dc 100644
--- a/src/app/cmdoptions.h
+++ b/src/app/cmdoptions.h
@@ -2,7 +2,7 @@
  * Bittorrent Client using Qt and libtorrent.
  * Copyright (C) 2016  Eugene Shalygin <eugene.shalygin@gmail.com>
  * Copyright (C) 2014  Vladimir Golovnev <glassez@yandex.ru>
- * Copyright (C) 2006  Christophe Dumez
+ * Copyright (C) 2006  Christophe Dumez <chris@qbittorrent.org>
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -26,8 +26,6 @@
  * modify file(s), you may extend this exception to your version of the file(s),
  * but you are not obligated to do so. If you do not wish to do so, delete this
  * exception statement from your version.
- *
- * Contact : chris@qbittorrent.org
  */
 
 #ifndef APP_OPTIONS_H
@@ -62,11 +60,11 @@ struct QBtCommandLineParameters
     QStringList paramList() const;
 };
 
-class CommandLineParameterError: public std::runtime_error
+class CommandLineParameterError : public std::runtime_error
 {
 public:
     CommandLineParameterError(const QString &messageForUser);
-    const QString& messageForUser() const;
+    const QString &messageForUser() const;
 
 private:
     const QString m_messageForUser;
diff --git a/src/app/filelogger.cpp b/src/app/filelogger.cpp
index 39b2d68f4..b317a66cc 100644
--- a/src/app/filelogger.cpp
+++ b/src/app/filelogger.cpp
@@ -1,6 +1,6 @@
 /*
  * Bittorrent Client using Qt and libtorrent.
- * Copyright (C) 2016  sledgehammer999 <hammered999@gmail.com>
+ * Copyright (C) 2016  sledgehammer999 <sledgehammer999@qbittorrent.org>
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -26,11 +26,13 @@
  * exception statement from your version.
  */
 
+#include "filelogger.h"
+
 #include <QDateTime>
 #include <QDir>
 #include <QFile>
 #include <QTextStream>
-#include "filelogger.h"
+
 #include "base/logger.h"
 #include "base/utils/fs.h"
 
@@ -47,8 +49,8 @@ FileLogger::FileLogger(const QString &path, const bool backup, const int maxSize
     if (deleteOld)
         this->deleteOld(age, ageType);
 
-    const Logger* const logger = Logger::instance();
-    foreach (const Log::Msg& msg, logger->getMessages())
+    const Logger *const logger = Logger::instance();
+    foreach (const Log::Msg &msg, logger->getMessages())
         addLogMessage(msg);
 
     connect(logger, &Logger::newLogMessage, this, &FileLogger::addLogMessage);
@@ -61,7 +63,7 @@ FileLogger::~FileLogger()
     delete m_logFile;
 }
 
-void FileLogger::changePath(const QString& newPath)
+void FileLogger::changePath(const QString &newPath)
 {
     QString tmpPath = Utils::Fs::fromNativePath(newPath);
     QDir dir(tmpPath);
diff --git a/src/app/filelogger.h b/src/app/filelogger.h
index 423b7a625..a5d2a5efa 100644
--- a/src/app/filelogger.h
+++ b/src/app/filelogger.h
@@ -1,6 +1,6 @@
 /*
  * Bittorrent Client using Qt and libtorrent.
- * Copyright (C) 2016  sledgehammer999 <hammered999@gmail.com>
+ * Copyright (C) 2016  sledgehammer999 <sledgehammer999@qbittorrent.org>
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -76,4 +76,3 @@ private:
 };
 
 #endif // FILELOGGER_H
-
diff --git a/src/app/main.cpp b/src/app/main.cpp
index 524b80036..75267ec6a 100644
--- a/src/app/main.cpp
+++ b/src/app/main.cpp
@@ -1,7 +1,7 @@
 /*
  * Bittorrent Client using Qt and libtorrent.
  * Copyright (C) 2014  Vladimir Golovnev <glassez@yandex.ru>
- * Copyright (C) 2006  Christophe Dumez
+ * Copyright (C) 2006  Christophe Dumez <chris@qbittorrent.org>
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -25,8 +25,6 @@
  * modify file(s), you may extend this exception to your version of the file(s),
  * but you are not obligated to do so. If you do not wish to do so, delete this
  * exception statement from your version.
- *
- * Contact : chris@qbittorrent.org
  */
 
 #include <cstdlib>
@@ -67,10 +65,10 @@ Q_IMPORT_PLUGIN(QICOPlugin)
 #endif // Q_OS_UNIX
 #endif //STACKTRACE
 
-#include "application.h"
+#include "base/preferences.h"
 #include "base/profile.h"
 #include "base/utils/misc.h"
-#include "base/preferences.h"
+#include "application.h"
 #include "cmdoptions.h"
 #include "upgrade.h"
 
@@ -95,7 +93,7 @@ const char *sysSigName[] = {
 };
 
 #if !defined Q_OS_WIN && !defined Q_OS_HAIKU
-void reportToUser(const char* str);
+void reportToUser(const char *str);
 #endif
 
 void displayVersion();
@@ -269,7 +267,7 @@ int main(int argc, char *argv[])
 }
 
 #if !defined Q_OS_WIN && !defined Q_OS_HAIKU
-void reportToUser(const char* str)
+void reportToUser(const char *str)
 {
     const size_t strLen = strlen(str);
     if (write(STDERR_FILENO, str, strLen) < static_cast<ssize_t>(strLen)) {
@@ -347,7 +345,7 @@ void displayVersion()
     printf("%s %s\n", qUtf8Printable(qApp->applicationName()), QBT_VERSION);
 }
 
-void displayBadArgMessage(const QString& message)
+void displayBadArgMessage(const QString &message)
 {
     QString help = QObject::tr("Run application with -h option to read about command line parameters.");
 #ifdef Q_OS_WIN
@@ -366,7 +364,7 @@ void displayBadArgMessage(const QString& message)
 
 bool userAgreesWithLegalNotice()
 {
-    Preferences* const pref = Preferences::instance();
+    Preferences *const pref = Preferences::instance();
     if (pref->getAcceptedLegal()) // Already accepted once
         return true;
 
@@ -397,7 +395,7 @@ bool userAgreesWithLegalNotice()
         pref->setAcceptedLegal(true);
         return true;
     }
-#endif
+#endif // DISABLE_GUI
 
     return false;
 }
diff --git a/src/app/upgrade.h b/src/app/upgrade.h
index 06657f71f..eeefc8678 100644
--- a/src/app/upgrade.h
+++ b/src/app/upgrade.h
@@ -299,6 +299,6 @@ void migrateRSS()
         qBTRSSLegacy->remove("old_items");
     }
 }
-#endif
+#endif // DISABLE_GUI
 
 #endif // UPGRADE_H
diff --git a/src/gui/powermanagement/powermanagement.cpp b/src/gui/powermanagement/powermanagement.cpp
index c51b22974..dbb7cf436 100644
--- a/src/gui/powermanagement/powermanagement.cpp
+++ b/src/gui/powermanagement/powermanagement.cpp
@@ -1,5 +1,5 @@
 /*
- * Bittorrent Client using Qt4 and libtorrent.
+ * Bittorrent Client using Qt and libtorrent.
  * Copyright (C) 2011  Vladimir Golovnev <glassez@yandex.ru>
  *
  * This program is free software; you can redistribute it and/or
@@ -24,16 +24,15 @@
  * modify file(s), you may extend this exception to your version of the file(s),
  * but you are not obligated to do so. If you do not wish to do so, delete this
  * exception statement from your version.
- *
- * Contact : chris@qbittorrent.org
  */
 
+#include "powermanagement.h"
+
 #include <QtGlobal>
 
 #if (defined(Q_OS_UNIX) && !defined(Q_OS_MAC)) && defined(QT_DBUS_LIB)
 #include "powermanagement_x11.h"
 #endif
-#include "powermanagement.h"
 
 #ifdef Q_OS_MAC
 #include <IOKit/pwr_mgt/IOPMLib.h>
@@ -43,7 +42,9 @@
 #include <windows.h>
 #endif
 
-PowerManagement::PowerManagement(QObject *parent) : QObject(parent), m_busy(false)
+PowerManagement::PowerManagement(QObject *parent)
+    : QObject(parent)
+    , m_busy(false)
 {
 #if (defined(Q_OS_UNIX) && !defined(Q_OS_MAC)) && defined(QT_DBUS_LIB)
     m_inhibitor = new PowerManagementInhibitor(this);
@@ -56,8 +57,10 @@ PowerManagement::~PowerManagement()
 
 void PowerManagement::setActivityState(bool busy)
 {
-    if (busy) setBusy();
-    else setIdle();
+    if (busy)
+        setBusy();
+    else
+        setIdle();
 }
 
 void PowerManagement::setBusy()
@@ -68,10 +71,11 @@ void PowerManagement::setBusy()
 #ifdef Q_OS_WIN
     SetThreadExecutionState(ES_CONTINUOUS | ES_SYSTEM_REQUIRED);
 #elif (defined(Q_OS_UNIX) && !defined(Q_OS_MAC)) && defined(QT_DBUS_LIB)
-    m_inhibitor->RequestBusy();
+    m_inhibitor->requestBusy();
 #elif defined(Q_OS_MAC)
     IOReturn success = IOPMAssertionCreate(kIOPMAssertionTypeNoIdleSleep, kIOPMAssertionLevelOn, &m_assertionID);
-    if (success != kIOReturnSuccess) m_busy = false;
+    if (success != kIOReturnSuccess)
+        m_busy = false;
 #endif
 }
 
@@ -83,7 +87,7 @@ void PowerManagement::setIdle()
 #ifdef Q_OS_WIN
     SetThreadExecutionState(ES_CONTINUOUS);
 #elif (defined(Q_OS_UNIX) && !defined(Q_OS_MAC)) && defined(QT_DBUS_LIB)
-    m_inhibitor->RequestIdle();
+    m_inhibitor->requestIdle();
 #elif defined(Q_OS_MAC)
     IOPMAssertionRelease(m_assertionID);
 #endif
diff --git a/src/gui/powermanagement/powermanagement.h b/src/gui/powermanagement/powermanagement.h
index dca50d0f7..5271d319c 100644
--- a/src/gui/powermanagement/powermanagement.h
+++ b/src/gui/powermanagement/powermanagement.h
@@ -1,5 +1,5 @@
 /*
- * Bittorrent Client using Qt4 and libtorrent.
+ * Bittorrent Client using Qt and libtorrent.
  * Copyright (C) 2011  Vladimir Golovnev <glassez@yandex.ru>
  *
  * This program is free software; you can redistribute it and/or
@@ -24,8 +24,6 @@
  * modify file(s), you may extend this exception to your version of the file(s),
  * but you are not obligated to do so. If you do not wish to do so, delete this
  * exception statement from your version.
- *
- * Contact : chris@qbittorrent.org
  */
 
 #ifndef POWERMANAGEMENT_H
diff --git a/src/gui/powermanagement/powermanagement_x11.cpp b/src/gui/powermanagement/powermanagement_x11.cpp
index 3e5f4e407..f293e8ef3 100644
--- a/src/gui/powermanagement/powermanagement_x11.cpp
+++ b/src/gui/powermanagement/powermanagement_x11.cpp
@@ -1,5 +1,5 @@
 /*
- * Bittorrent Client using Qt4 and libtorrent.
+ * Bittorrent Client using Qt and libtorrent.
  * Copyright (C) 2011  Vladimir Golovnev <glassez@yandex.ru>
  *
  * This program is free software; you can redistribute it and/or
@@ -24,48 +24,45 @@
  * modify file(s), you may extend this exception to your version of the file(s),
  * but you are not obligated to do so. If you do not wish to do so, delete this
  * exception statement from your version.
- *
- * Contact : chris@qbittorrent.org
  */
 
+#include "powermanagement_x11.h"
+
 #include <QDBusConnection>
 #include <QDBusMessage>
 #include <QDBusPendingCall>
 #include <QDBusPendingReply>
 
-#include "powermanagement_x11.h"
-
-PowerManagementInhibitor::PowerManagementInhibitor(QObject *parent) : QObject(parent)
+PowerManagementInhibitor::PowerManagementInhibitor(QObject *parent)
+    : QObject(parent)
 {
-    if (!QDBusConnection::sessionBus().isConnected())
-    {
+    if (!QDBusConnection::sessionBus().isConnected()) {
         qDebug("D-Bus: Could not connect to session bus");
-        m_state = error;
+        m_state = Error;
     }
-    else
-    {
-        m_state = idle;
+    else {
+        m_state = Idle;
     }
 
-    m_intended_state = idle;
+    m_intendedState = Idle;
     m_cookie = 0;
-    m_use_gsm = false;
+    m_useGSM = false;
 }
 
 PowerManagementInhibitor::~PowerManagementInhibitor()
 {
 }
 
-void PowerManagementInhibitor::RequestIdle()
+void PowerManagementInhibitor::requestIdle()
 {
-    m_intended_state = idle;
-    if (m_state == error || m_state == idle || m_state == request_idle || m_state == request_busy)
+    m_intendedState = Idle;
+    if ((m_state == Error) || (m_state == Idle) || (m_state == RequestIdle) || (m_state == RequestBusy))
         return;
 
     qDebug("D-Bus: PowerManagementInhibitor: Requesting idle");
 
     QDBusMessage call;
-    if (!m_use_gsm)
+    if (!m_useGSM)
         call = QDBusMessage::createMethodCall(
                 "org.freedesktop.PowerManagement",
                 "/org/freedesktop/PowerManagement/Inhibit",
@@ -78,7 +75,7 @@ void PowerManagementInhibitor::RequestIdle()
                 "org.gnome.SessionManager",
                 "Uninhibit");
 
-    m_state = request_idle;
+    m_state = RequestIdle;
 
     QList<QVariant> args;
     args << m_cookie;
@@ -86,20 +83,20 @@ void PowerManagementInhibitor::RequestIdle()
 
     QDBusPendingCall pcall = QDBusConnection::sessionBus().asyncCall(call, 1000);
     QDBusPendingCallWatcher *watcher = new QDBusPendingCallWatcher(pcall, this);
-    connect(watcher, &QDBusPendingCallWatcher::finished, this, &PowerManagementInhibitor::OnAsyncReply);
+    connect(watcher, &QDBusPendingCallWatcher::finished, this, &PowerManagementInhibitor::onAsyncReply);
 }
 
 
-void PowerManagementInhibitor::RequestBusy()
+void PowerManagementInhibitor::requestBusy()
 {
-    m_intended_state = busy;
-    if (m_state == error || m_state == busy || m_state == request_busy || m_state == request_idle)
+    m_intendedState = Busy;
+    if ((m_state == Error) || (m_state == Busy) || (m_state == RequestBusy) || (m_state == RequestIdle))
         return;
 
     qDebug("D-Bus: PowerManagementInhibitor: Requesting busy");
 
     QDBusMessage call;
-    if (!m_use_gsm)
+    if (!m_useGSM)
         call = QDBusMessage::createMethodCall(
                 "org.freedesktop.PowerManagement",
                 "/org/freedesktop/PowerManagement/Inhibit",
@@ -112,71 +109,64 @@ void PowerManagementInhibitor::RequestBusy()
                 "org.gnome.SessionManager",
                 "Inhibit");
 
-    m_state = request_busy;
+    m_state = RequestBusy;
 
     QList<QVariant> args;
     args << "qBittorrent";
-    if (m_use_gsm) args << 0u;
+    if (m_useGSM) args << 0u;
     args << "Active torrents are presented";
-    if (m_use_gsm) args << 8u;
+    if (m_useGSM) args << 8u;
     call.setArguments(args);
 
     QDBusPendingCall pcall = QDBusConnection::sessionBus().asyncCall(call, 1000);
     QDBusPendingCallWatcher *watcher = new QDBusPendingCallWatcher(pcall, this);
-    connect(watcher, &QDBusPendingCallWatcher::finished, this, &PowerManagementInhibitor::OnAsyncReply);
+    connect(watcher, &QDBusPendingCallWatcher::finished, this, &PowerManagementInhibitor::onAsyncReply);
 }
 
-void PowerManagementInhibitor::OnAsyncReply(QDBusPendingCallWatcher *call)
+void PowerManagementInhibitor::onAsyncReply(QDBusPendingCallWatcher *call)
 {
-    if (m_state == request_idle)
-    {
+    if (m_state == RequestIdle) {
         QDBusPendingReply<> reply = *call;
 
-        if (reply.isError())
-        {
+        if (reply.isError()) {
             qDebug("D-Bus: Reply: Error: %s", qUtf8Printable(reply.error().message()));
-            m_state = error;
+            m_state = Error;
         }
-        else
-        {
-            m_state = idle;
+        else {
+            m_state = Idle;
             qDebug("D-Bus: PowerManagementInhibitor: Request successful");
-            if (m_intended_state == busy) RequestBusy();
+            if (m_intendedState == Busy)
+                requestBusy();
         }
     }
-    else if (m_state == request_busy)
-    {
+    else if (m_state == RequestBusy) {
         QDBusPendingReply<uint> reply = *call;
 
-        if (reply.isError())
-        {
+        if (reply.isError()) {
             qDebug("D-Bus: Reply: Error: %s", qUtf8Printable(reply.error().message()));
 
-            if (!m_use_gsm)
-            {
+            if (!m_useGSM) {
                 qDebug("D-Bus: Falling back to org.gnome.SessionManager");
-                m_use_gsm = true;
-                m_state = idle;
-                if (m_intended_state == busy)
-                    RequestBusy();
+                m_useGSM = true;
+                m_state = Idle;
+                if (m_intendedState == Busy)
+                    requestBusy();
             }
-            else
-            {
-                m_state = error;
+            else {
+                m_state = Error;
             }
         }
-        else
-        {
-            m_state = busy;
+        else {
+            m_state = Busy;
             m_cookie = reply.value();
             qDebug("D-Bus: PowerManagementInhibitor: Request successful, cookie is %d", m_cookie);
-            if (m_intended_state == idle) RequestIdle();
+            if (m_intendedState == Idle)
+                requestIdle();
         }
     }
-    else
-    {
+    else {
         qDebug("D-Bus: Unexpected reply in state %d", m_state);
-        m_state = error;
+        m_state = Error;
     }
 
     call->deleteLater();
diff --git a/src/gui/powermanagement/powermanagement_x11.h b/src/gui/powermanagement/powermanagement_x11.h
index 8e5f327f3..6e8b77aae 100644
--- a/src/gui/powermanagement/powermanagement_x11.h
+++ b/src/gui/powermanagement/powermanagement_x11.h
@@ -1,5 +1,5 @@
 /*
- * Bittorrent Client using Qt4 and libtorrent.
+ * Bittorrent Client using Qt and libtorrent.
  * Copyright (C) 2011  Vladimir Golovnev <glassez@yandex.ru>
  *
  * This program is free software; you can redistribute it and/or
@@ -24,8 +24,6 @@
  * modify file(s), you may extend this exception to your version of the file(s),
  * but you are not obligated to do so. If you do not wish to do so, delete this
  * exception statement from your version.
- *
- * Contact : chris@qbittorrent.org
  */
 
 #ifndef POWERMANAGEMENTINHIBITOR_H
@@ -33,9 +31,7 @@
 
 #include <QObject>
 
-QT_BEGIN_NAMESPACE
 class QDBusPendingCallWatcher;
-QT_END_NAMESPACE
 
 class PowerManagementInhibitor : public QObject
 {
@@ -45,27 +41,27 @@ public:
     PowerManagementInhibitor(QObject *parent = nullptr);
     virtual ~PowerManagementInhibitor();
 
-    void RequestIdle();
-    void RequestBusy();
+    void requestIdle();
+    void requestBusy();
 
 private slots:
-    void OnAsyncReply(QDBusPendingCallWatcher *call);
+    void onAsyncReply(QDBusPendingCallWatcher *call);
 
 private:
-    enum _state
+    enum State
     {
-        error,
-        idle,
-        request_busy,
-        busy,
-        request_idle
+        Error,
+        Idle,
+        RequestBusy,
+        Busy,
+        RequestIdle
     };
 
-    enum _state m_state;
-    enum _state m_intended_state;
+    enum State m_state;
+    enum State m_intendedState;
     unsigned int m_cookie;
 
-    bool m_use_gsm;
+    bool m_useGSM;
 };
 
 #endif // POWERMANAGEMENTINHIBITOR_H
diff --git a/src/gui/rss/articlelistwidget.h b/src/gui/rss/articlelistwidget.h
index 6c35892b0..1dfadbb97 100644
--- a/src/gui/rss/articlelistwidget.h
+++ b/src/gui/rss/articlelistwidget.h
@@ -38,7 +38,7 @@ namespace RSS
     class Item;
 }
 
-class ArticleListWidget: public QListWidget
+class ArticleListWidget : public QListWidget
 {
     Q_OBJECT
 
diff --git a/src/gui/rss/automatedrssdownloader.cpp b/src/gui/rss/automatedrssdownloader.cpp
index 4fd05440e..6575b5b97 100644
--- a/src/gui/rss/automatedrssdownloader.cpp
+++ b/src/gui/rss/automatedrssdownloader.cpp
@@ -50,8 +50,8 @@
 #include "base/rss/rss_session.h"
 #include "base/utils/fs.h"
 #include "base/utils/string.h"
-#include "guiiconprovider.h"
 #include "autoexpandabledialog.h"
+#include "guiiconprovider.h"
 #include "ui_automatedrssdownloader.h"
 #include "utils.h"
 
@@ -579,7 +579,7 @@ void AutomatedRssDownloader::updateMatchingArticles()
                                        : RSS::AutoDownloader::instance()->ruleByName(ruleItem->text()));
         foreach (const QString &feedURL, rule.feedURLs()) {
             auto feed = RSS::Session::instance()->feedByURL(feedURL);
-            if (!feed) continue; // feed doesn't exists
+            if (!feed) continue; // feed doesn't exist
 
             QStringList matchingArticles;
             foreach (auto article, feed->articles())
diff --git a/src/gui/rss/automatedrssdownloader.h b/src/gui/rss/automatedrssdownloader.h
index 5d24fe315..26c4f70d8 100644
--- a/src/gui/rss/automatedrssdownloader.h
+++ b/src/gui/rss/automatedrssdownloader.h
@@ -51,7 +51,7 @@ namespace RSS
     class Feed;
 }
 
-class AutomatedRssDownloader: public QDialog
+class AutomatedRssDownloader : public QDialog
 {
     Q_OBJECT
 
diff --git a/src/gui/rss/feedlistwidget.h b/src/gui/rss/feedlistwidget.h
index f7667a275..ec82ea592 100644
--- a/src/gui/rss/feedlistwidget.h
+++ b/src/gui/rss/feedlistwidget.h
@@ -41,7 +41,7 @@ namespace RSS
     class Item;
 }
 
-class FeedListWidget: public QTreeWidget
+class FeedListWidget : public QTreeWidget
 {
     Q_OBJECT
 
diff --git a/src/gui/rss/rsswidget.cpp b/src/gui/rss/rsswidget.cpp
index 8a78f9a43..a772978a3 100644
--- a/src/gui/rss/rsswidget.cpp
+++ b/src/gui/rss/rsswidget.cpp
@@ -308,7 +308,7 @@ void RSSWidget::loadFoldersOpenState()
     const QStringList openedFolders = Preferences::instance()->getRssOpenFolders();
     foreach (const QString &varPath, openedFolders) {
         QTreeWidgetItem *parent = nullptr;
-        foreach (const QString &name, varPath.split("\\")) {
+        foreach (const QString &name, varPath.split('\\')) {
             int nbChildren = (parent ? parent->childCount() : m_feedListWidget->topLevelItemCount());
             for (int i = 0; i < nbChildren; ++i) {
                 QTreeWidgetItem *child = (parent ? parent->child(i) : m_feedListWidget->topLevelItem(i));
@@ -414,7 +414,7 @@ void RSSWidget::copySelectedFeedsURL()
         if (auto feed = qobject_cast<RSS::Feed *>(m_feedListWidget->getRSSItem(item)))
             URLs << feed->url();
     }
-    qApp->clipboard()->setText(URLs.join("\n"));
+    qApp->clipboard()->setText(URLs.join('\n'));
 }
 
 void RSSWidget::handleCurrentFeedItemChanged(QTreeWidgetItem *currentItem)
diff --git a/src/gui/rss/rsswidget.h b/src/gui/rss/rsswidget.h
index 6c88e1cc3..6bd150eb9 100644
--- a/src/gui/rss/rsswidget.h
+++ b/src/gui/rss/rsswidget.h
@@ -44,7 +44,7 @@ namespace Ui
     class RSSWidget;
 }
 
-class RSSWidget: public QWidget
+class RSSWidget : public QWidget
 {
     Q_OBJECT
 
diff --git a/src/gui/search/pluginselectdlg.cpp b/src/gui/search/pluginselectdlg.cpp
index 4d6491d6d..79d9d562a 100644
--- a/src/gui/search/pluginselectdlg.cpp
+++ b/src/gui/search/pluginselectdlg.cpp
@@ -25,8 +25,6 @@
  * modify file(s), you may extend this exception to your version of the file(s),
  * but you are not obligated to do so. If you do not wish to do so, delete this
  * exception statement from your version.
- *
- * Contact : chris@qbittorrent.org
  */
 
 #include "pluginselectdlg.h"
@@ -41,11 +39,11 @@
 #include <QMimeData>
 #include <QTableView>
 
-#include "autoexpandabledialog.h"
 #include "base/net/downloadhandler.h"
 #include "base/net/downloadmanager.h"
 #include "base/utils/fs.h"
 #include "base/utils/misc.h"
+#include "autoexpandabledialog.h"
 #include "guiiconprovider.h"
 #include "pluginsourcedlg.h"
 #include "searchwidget.h"
@@ -252,7 +250,7 @@ QList<QTreeWidgetItem*> PluginSelectDlg::findItemsWithUrl(QString url)
     return res;
 }
 
-QTreeWidgetItem* PluginSelectDlg::findItemWithID(QString id)
+QTreeWidgetItem *PluginSelectDlg::findItemWithID(QString id)
 {
     for (int i = 0; i < m_ui->pluginsTree->topLevelItemCount(); ++i) {
         QTreeWidgetItem *item = m_ui->pluginsTree->topLevelItem(i);
diff --git a/src/gui/search/pluginselectdlg.h b/src/gui/search/pluginselectdlg.h
index 4c1722a4a..fa657df5e 100644
--- a/src/gui/search/pluginselectdlg.h
+++ b/src/gui/search/pluginselectdlg.h
@@ -25,8 +25,6 @@
  * modify file(s), you may extend this exception to your version of the file(s),
  * but you are not obligated to do so. If you do not wish to do so, delete this
  * exception statement from your version.
- *
- * Contact : chris@qbittorrent.org
  */
 
 #ifndef PLUGINSELECTDLG_H
@@ -45,7 +43,7 @@ namespace Ui
     class PluginSelectDlg;
 }
 
-class PluginSelectDlg: public QDialog
+class PluginSelectDlg : public QDialog
 {
     Q_OBJECT
 
@@ -54,7 +52,7 @@ public:
     ~PluginSelectDlg();
 
     QList<QTreeWidgetItem*> findItemsWithUrl(QString url);
-    QTreeWidgetItem* findItemWithID(QString id);
+    QTreeWidgetItem *findItemWithID(QString id);
 
 protected:
     void dropEvent(QDropEvent *event);
@@ -67,7 +65,7 @@ private slots:
     void on_closeButton_clicked();
     void togglePluginState(QTreeWidgetItem*, int);
     void setRowColor(int row, QString color);
-    void displayContextMenu(const QPoint& pos);
+    void displayContextMenu(const QPoint &pos);
     void enableSelection(bool enable);
     void askForLocalPlugin();
     void askForPluginUrl();
diff --git a/src/gui/search/pluginsourcedlg.cpp b/src/gui/search/pluginsourcedlg.cpp
index 387666e42..3f3558147 100644
--- a/src/gui/search/pluginsourcedlg.cpp
+++ b/src/gui/search/pluginsourcedlg.cpp
@@ -1,6 +1,6 @@
 /*
  * Bittorrent Client using Qt and libtorrent.
- * Copyright (C) 2006  Christophe Dumez
+ * Copyright (C) 2006  Christophe Dumez <chris@qbittorrent.org>
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -24,8 +24,6 @@
  * modify file(s), you may extend this exception to your version of the file(s),
  * but you are not obligated to do so. If you do not wish to do so, delete this
  * exception statement from your version.
- *
- * Contact : chris@qbittorrent.org
  */
 
 #include "pluginsourcedlg.h"
diff --git a/src/gui/search/pluginsourcedlg.h b/src/gui/search/pluginsourcedlg.h
index 3ae0a4efd..ef3ef2b5f 100644
--- a/src/gui/search/pluginsourcedlg.h
+++ b/src/gui/search/pluginsourcedlg.h
@@ -1,6 +1,6 @@
 /*
  * Bittorrent Client using Qt and libtorrent.
- * Copyright (C) 2006  Christophe Dumez
+ * Copyright (C) 2006  Christophe Dumez <chris@qbittorrent.org>
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -24,8 +24,6 @@
  * modify file(s), you may extend this exception to your version of the file(s),
  * but you are not obligated to do so. If you do not wish to do so, delete this
  * exception statement from your version.
- *
- * Contact : chris@qbittorrent.org
  */
 
 #ifndef PLUGINSOURCEDLG_H
@@ -38,7 +36,7 @@ namespace Ui
     class PluginSourceDlg;
 }
 
-class PluginSourceDlg: public QDialog
+class PluginSourceDlg : public QDialog
 {
     Q_OBJECT
 
diff --git a/src/gui/search/searchlistdelegate.h b/src/gui/search/searchlistdelegate.h
index 1af6e19ce..9a14ac1f8 100644
--- a/src/gui/search/searchlistdelegate.h
+++ b/src/gui/search/searchlistdelegate.h
@@ -1,6 +1,6 @@
 /*
  * Bittorrent Client using Qt and libtorrent.
- * Copyright (C) 2006  Christophe Dumez
+ * Copyright (C) 2006  Christophe Dumez <chris@qbittorrent.org>
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -24,8 +24,6 @@
  * modify file(s), you may extend this exception to your version of the file(s),
  * but you are not obligated to do so. If you do not wish to do so, delete this
  * exception statement from your version.
- *
- * Contact : chris@qbittorrent.org
  */
 
 #ifndef SEARCHLISTDELEGATE_H
@@ -33,7 +31,7 @@
 
 #include <QItemDelegate>
 
-class SearchListDelegate: public QItemDelegate
+class SearchListDelegate : public QItemDelegate
 {
 public:
     explicit SearchListDelegate(QObject *parent);
@@ -42,4 +40,4 @@ public:
     QWidget *createEditor(QWidget *, const QStyleOptionViewItem &, const QModelIndex &) const override;
 };
 
-#endif
+#endif // SEARCHLISTDELEGATE_H
diff --git a/src/gui/search/searchsortmodel.cpp b/src/gui/search/searchsortmodel.cpp
index a41be4a68..a93c2ac85 100644
--- a/src/gui/search/searchsortmodel.cpp
+++ b/src/gui/search/searchsortmodel.cpp
@@ -1,6 +1,6 @@
 /*
  * Bittorrent Client using Qt and libtorrent.
- * Copyright (C) 2013  sledgehammer999 <hammered999@gmail.com>
+ * Copyright (C) 2013  sledgehammer999 <sledgehammer999@qbittorrent.org>
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -123,10 +123,10 @@ bool SearchSortModel::lessThan(const QModelIndex &left, const QModelIndex &right
 
 bool SearchSortModel::filterAcceptsRow(int sourceRow, const QModelIndex &sourceParent) const
 {
-    const QAbstractItemModel* const sourceModel = this->sourceModel();
+    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;
@@ -134,26 +134,26 @@ bool SearchSortModel::filterAcceptsRow(int sourceRow, const QModelIndex &sourceP
         }
     }
 
-    if (m_minSize > 0 || m_maxSize >= 0) {
+    if ((m_minSize > 0) || (m_maxSize >= 0)) {
         qlonglong size = sourceModel->data(sourceModel->index(sourceRow, SIZE, sourceParent)).toLongLong();
-        if ((m_minSize > 0 && size < m_minSize)
-            ||  (m_maxSize > 0 && size > m_maxSize)) {
+        if (((m_minSize > 0) && (size < m_minSize))
+            || ((m_maxSize > 0) && (size > m_maxSize))) {
             return false;
         }
     }
 
-    if (m_minSeeds > 0 || m_maxSeeds >= 0) {
+    if ((m_minSeeds > 0) || (m_maxSeeds >= 0)) {
         int seeds = sourceModel->data(sourceModel->index(sourceRow, SEEDS, sourceParent)).toInt();
-        if ((m_minSeeds > 0 && seeds < m_minSeeds)
-            ||  (m_maxSeeds > 0 && seeds > m_maxSeeds)) {
+        if (((m_minSeeds > 0) && (seeds < m_minSeeds))
+            || ((m_maxSeeds > 0) && (seeds > m_maxSeeds))) {
             return false;
         }
     }
 
-    if (m_minLeeches > 0 || m_maxLeeches >= 0) {
+    if ((m_minLeeches > 0) || (m_maxLeeches >= 0)) {
         int leeches = sourceModel->data(sourceModel->index(sourceRow, LEECHES, sourceParent)).toInt();
-        if ((m_minLeeches > 0 && leeches < m_minLeeches)
-            ||  (m_maxLeeches > 0 && leeches > m_maxLeeches)) {
+        if (((m_minLeeches > 0) && (leeches < m_minLeeches))
+            || ((m_maxLeeches > 0) && (leeches > m_maxLeeches))) {
             return false;
         }
     }
diff --git a/src/gui/search/searchsortmodel.h b/src/gui/search/searchsortmodel.h
index 75d80cff7..af71480e8 100644
--- a/src/gui/search/searchsortmodel.h
+++ b/src/gui/search/searchsortmodel.h
@@ -1,6 +1,6 @@
 /*
  * Bittorrent Client using Qt and libtorrent.
- * Copyright (C) 2013  sledgehammer999 <hammered999@gmail.com>
+ * Copyright (C) 2013  sledgehammer999 <sledgehammer999@qbittorrent.org>
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -33,7 +33,7 @@
 #include <QStringList>
 #include "base/utils/string.h"
 
-class SearchSortModel: public QSortFilterProxyModel
+class SearchSortModel : public QSortFilterProxyModel
 {
     using base = QSortFilterProxyModel;
 
@@ -53,7 +53,7 @@ public:
     explicit SearchSortModel(QObject *parent = nullptr);
 
     void enableNameFilter(bool enabled);
-    void setNameFilter(const QString& searchTerm = QString());
+    void setNameFilter(const QString &searchTerm = QString());
 
     //! \brief Sets parameters for filtering by size
     //! \param minSize minimal size in bytes
diff --git a/src/gui/search/searchtab.cpp b/src/gui/search/searchtab.cpp
index a75040919..6f157be2c 100644
--- a/src/gui/search/searchtab.cpp
+++ b/src/gui/search/searchtab.cpp
@@ -102,7 +102,7 @@ SearchTab::SearchTab(SearchHandler *searchHandler, QWidget *parent)
     m_ui->resultsBrowser->setAllColumnsShowFocus(true);
     m_ui->resultsBrowser->setSortingEnabled(true);
 
-    //Ensure that at least one column is visible at all times
+    // Ensure that at least one column is visible at all times
     bool atLeastOne = false;
     for (unsigned int i = 0; i < SearchSortModel::DL_LINK; i++) {
         if (!m_ui->resultsBrowser->isColumnHidden(i)) {
@@ -112,9 +112,9 @@ SearchTab::SearchTab(SearchHandler *searchHandler, QWidget *parent)
     }
     if (!atLeastOne)
         m_ui->resultsBrowser->setColumnHidden(SearchSortModel::NAME, false);
-    //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.
+    // 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 < SearchSortModel::DL_LINK; i++)
         if ((m_ui->resultsBrowser->columnWidth(i) <= 0) && !m_ui->resultsBrowser->isColumnHidden(i))
             m_ui->resultsBrowser->resizeColumnToContents(i);
@@ -229,7 +229,7 @@ void SearchTab::copyTorrentURLs()
 
     if (!urls.empty()) {
         QClipboard *clipboard = QApplication::clipboard();
-        clipboard->setText(urls.join("\n"));
+        clipboard->setText(urls.join('\n'));
     }
 }
 
@@ -327,7 +327,7 @@ void SearchTab::fillFilterComboBoxes()
 
     QVariant selectedMode = static_cast<int>(nameFilteringModeSetting().value());
     int index = m_ui->filterMode->findData(selectedMode);
-    m_ui->filterMode->setCurrentIndex(index == -1 ? 0 : index);
+    m_ui->filterMode->setCurrentIndex((index == -1) ? 0 : index);
 }
 
 QString SearchTab::statusText(SearchTab::Status st)
diff --git a/src/gui/search/searchtab.h b/src/gui/search/searchtab.h
index 465909a5c..4c3357638 100644
--- a/src/gui/search/searchtab.h
+++ b/src/gui/search/searchtab.h
@@ -34,9 +34,9 @@
 #define ENGINE_URL_COLUMN 4
 #define URL_COLUMN 5
 
+class QHeaderView;
 class QLabel;
 class QModelIndex;
-class QHeaderView;
 class QStandardItem;
 class QStandardItemModel;
 class QVBoxLayout;
@@ -44,8 +44,8 @@ class QVBoxLayout;
 template <typename T> class CachedSettingValue;
 
 class SearchHandler;
-class SearchSortModel;
 class SearchListDelegate;
+class SearchSortModel;
 struct SearchResult;
 
 namespace Ui
@@ -110,7 +110,7 @@ private:
     void setRowColor(int row, const QColor &color);
 
     static QString statusText(Status st);
-    static CachedSettingValue<NameFilteringMode>& nameFilteringModeSetting();
+    static CachedSettingValue<NameFilteringMode> &nameFilteringModeSetting();
 
     Ui::SearchTab *m_ui;
     SearchHandler *m_searchHandler;
diff --git a/src/gui/search/searchwidget.cpp b/src/gui/search/searchwidget.cpp
index 4ac7bbe01..391910988 100644
--- a/src/gui/search/searchwidget.cpp
+++ b/src/gui/search/searchwidget.cpp
@@ -254,7 +254,7 @@ void SearchWidget::tabChanged(int index)
 {
     // when we switch from a tab that is not empty to another that is empty
     // the download button doesn't have to be available
-    m_currentSearchTab = (index < 0 ? nullptr : m_allTabs.at(m_ui->tabWidget->currentIndex()));
+    m_currentSearchTab = ((index < 0) ? nullptr : m_allTabs.at(m_ui->tabWidget->currentIndex()));
     updateButtons();
 }
 
@@ -308,10 +308,14 @@ void SearchWidget::on_searchButton_clicked()
     }
 
     QStringList plugins;
-    if (selectedPlugin() == "all") plugins = SearchPluginManager::instance()->allPlugins();
-    else if (selectedPlugin() == "enabled") plugins = SearchPluginManager::instance()->enabledPlugins();
-    else if (selectedPlugin() == "multi") plugins = SearchPluginManager::instance()->enabledPlugins();
-    else plugins << selectedPlugin();
+    if (selectedPlugin() == "all")
+        plugins = SearchPluginManager::instance()->allPlugins();
+    else if (selectedPlugin() == "enabled")
+        plugins = SearchPluginManager::instance()->enabledPlugins();
+    else if (selectedPlugin() == "multi")
+        plugins = SearchPluginManager::instance()->enabledPlugins();
+    else
+        plugins << selectedPlugin();
 
     qDebug("Search with category: %s", qUtf8Printable(selectedCategory()));