Merge pull request #245 from Chrezm/244/add-starting-up-argument-nosc…

…aling

Added -noscaling argument option

src/main.cpp

@@ -2,13 +2,37 @@
 
 #include "lobby.h"
 
+#include <QDebug>
+
 int main(int argc, char *argv[])
 {
-#if QT_VERSION >= QT_VERSION_CHECK(5, 6, 0)
   // High-DPI support is for Qt version >=5.6.
-  // However, many Linux distros still haven't brought their stable/LTS
-  // packages up to Qt 5.6, so this is conditional.
-  AOApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
+#if QT_VERSION >= QT_VERSION_CHECK(5, 6, 0)
+  bool l_dpi_scaling = true;
+
+  for (int i = 0; i < argc; ++i)
+  {
+    const QString l_arg(argv[i]);
+
+    if (l_arg == "-noscaling")
+    {
+      l_dpi_scaling = false;
+    }
+  }
+
+  if (l_dpi_scaling)
+  {
+    QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
+  }
+  else
+  {
+    qputenv("QT_FONT_DPI", "96");
+    qputenv("QT_SCALE_FACTOR", "1");
+    qputenv("QT_AUTO_SCREEN_SCALE_FACTOR", "0");
+
+    QCoreApplication::setAttribute(Qt::AA_DisableHighDpiScaling);
+    QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling, false);
+  }
 #endif
 
 #ifdef Q_OS_MACOS