From b3c73b78682a4e1d1a86dbd8a15973ac1569b840 Mon Sep 17 00:00:00 2001
From: Chocobo1 <Chocobo1@users.noreply.github.com>
Date: Thu, 16 Mar 2017 21:58:43 +0800
Subject: [PATCH 1/4] Refactor

---
 src/app/application.cpp | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/src/app/application.cpp b/src/app/application.cpp
index 204550b5f..52108b368 100644
--- a/src/app/application.cpp
+++ b/src/app/application.cpp
@@ -133,14 +133,18 @@ Application::Application(const QString &id, int &argc, char **argv)
         QFont::insertSubstitution(".Lucida Grande UI", "Lucida Grande");
     }
 #endif
+
+    setApplicationName("qBittorrent");
     initializeTranslation();
-#ifndef DISABLE_GUI
+
+#if !defined(DISABLE_GUI)
     setAttribute(Qt::AA_UseHighDpiPixmaps, true);  // opt-in to the high DPI pixmap support
     setQuitOnLastWindowClosed(false);
-#ifdef Q_OS_WIN
+#endif
+
+#if defined(Q_OS_WIN) && !defined(DISABLE_GUI)
     connect(this, SIGNAL(commitDataRequest(QSessionManager &)), this, SLOT(shutdownCleanup(QSessionManager &)), Qt::DirectConnection);
-#endif // Q_OS_WIN
-#endif // DISABLE_GUI
+#endif
 
     connect(this, SIGNAL(messageReceived(const QString &)), SLOT(processMessage(const QString &)));
     connect(this, SIGNAL(aboutToQuit()), SLOT(cleanup()));

From a1cad86bbfb6f029c403fd126b0f1aad0cb70e34 Mon Sep 17 00:00:00 2001
From: Chocobo1 <Chocobo1@users.noreply.github.com>
Date: Thu, 16 Mar 2017 22:04:39 +0800
Subject: [PATCH 2/4] Remove workaround

Upstream confirmed bug fixed in Qt 5.2
---
 src/app/application.cpp | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/src/app/application.cpp b/src/app/application.cpp
index 52108b368..3a3acabdc 100644
--- a/src/app/application.cpp
+++ b/src/app/application.cpp
@@ -126,14 +126,6 @@ Application::Application(const QString &id, int &argc, char **argv)
         Preferences::instance()->setWebUiPort(m_commandLineArgs.webUiPort);
     }
 
-#if defined(Q_OS_MACX) && !defined(DISABLE_GUI)
-    if (QSysInfo::MacintoshVersion > QSysInfo::MV_10_8) {
-        // fix Mac OS X 10.9 (mavericks) font issue
-        // https://bugreports.qt-project.org/browse/QTBUG-32789
-        QFont::insertSubstitution(".Lucida Grande UI", "Lucida Grande");
-    }
-#endif
-
     setApplicationName("qBittorrent");
     initializeTranslation();
 

From 893ce32f1d99243d775a3f8e190681bbf7f1699e Mon Sep 17 00:00:00 2001
From: Chocobo1 <Chocobo1@users.noreply.github.com>
Date: Mon, 1 May 2017 00:45:27 +0800
Subject: [PATCH 3/4] Remove curly braces

---
 src/app/application.cpp | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/app/application.cpp b/src/app/application.cpp
index 3a3acabdc..4dc8b61dd 100644
--- a/src/app/application.cpp
+++ b/src/app/application.cpp
@@ -122,9 +122,8 @@ Application::Application(const QString &id, int &argc, char **argv)
     SettingsStorage::initInstance();
     Preferences::initInstance();
 
-    if (m_commandLineArgs.webUiPort > 0) { // it will be -1 when user did not set any value
+    if (m_commandLineArgs.webUiPort > 0) // it will be -1 when user did not set any value
         Preferences::instance()->setWebUiPort(m_commandLineArgs.webUiPort);
-    }
 
     setApplicationName("qBittorrent");
     initializeTranslation();

From 6bcb07649e5d04d8dc176031808ba05abc7a1811 Mon Sep 17 00:00:00 2001
From: Chocobo1 <Chocobo1@users.noreply.github.com>
Date: Mon, 20 Mar 2017 14:11:49 +0800
Subject: [PATCH 4/4] Setup DPI at startup

---
 src/app/main.cpp | 30 +++++++++++++++++++++++++-----
 1 file changed, 25 insertions(+), 5 deletions(-)

diff --git a/src/app/main.cpp b/src/app/main.cpp
index 7defc5293..c48ea9d59 100644
--- a/src/app/main.cpp
+++ b/src/app/main.cpp
@@ -41,6 +41,7 @@
 #include <QPen>
 #include <QPushButton>
 #include <QSplashScreen>
+
 #ifdef QBT_STATIC_QT
 #include <QtPlugin>
 Q_IMPORT_PLUGIN(QICOPlugin)
@@ -89,13 +90,18 @@ const char *sysSigName[] = {
 };
 #endif
 
-#ifndef DISABLE_GUI
-void showSplashScreen();
-#endif
 void displayVersion();
 bool userAgreesWithLegalNotice();
 void displayBadArgMessage(const QString &message);
 
+#if !defined(DISABLE_GUI)
+void showSplashScreen();
+
+#if defined(Q_OS_UNIX)
+void setupDpi();
+#endif  // Q_OS_UNIX
+#endif  // DISABLE_GUI
+
 // Main
 int main(int argc, char *argv[])
 {
@@ -108,15 +114,21 @@ int main(int argc, char *argv[])
     macMigratePlists();
 #endif
 
+#if !defined(DISABLE_GUI) && defined(Q_OS_UNIX)
+    setupDpi();
+#endif
+
     try {
         // Create Application
         QString appId = QLatin1String("qBittorrent-") + Utils::Misc::getUserIDString();
         QScopedPointer<Application> app(new Application(appId, argc, argv));
+
 #ifndef DISABLE_GUI
         // after the application object creation because we need a profile to be set already
         // for the migration
         migrateRSS();
 #endif
+
         const QBtCommandLineParameters &params = app->commandLineArgs();
 
         if (!params.unknownParameter.isEmpty()) {
@@ -280,7 +292,7 @@ void sigAbnormalHandler(int signum)
 }
 #endif // defined(Q_OS_UNIX) || defined(STACKTRACE_WIN)
 
-#ifndef DISABLE_GUI
+#if !defined(DISABLE_GUI)
 void showSplashScreen()
 {
     QPixmap splash_img(":/icons/skin/splash.png");
@@ -294,7 +306,15 @@ void showSplashScreen()
     QTimer::singleShot(1500, splash, SLOT(deleteLater()));
     qApp->processEvents();
 }
-#endif
+
+#if defined(Q_OS_UNIX)
+void setupDpi()
+{
+    if (qgetenv("QT_AUTO_SCREEN_SCALE_FACTOR").isEmpty())
+        qputenv("QT_AUTO_SCREEN_SCALE_FACTOR", "1");
+}
+#endif  // Q_OS_UNIX
+#endif  // DISABLE_GUI
 
 void displayVersion()
 {