Harden screen position check against missing monitors

src/aoapplication.cpp

@@ -52,7 +52,7 @@ void AOApplication::construct_lobby()
   w_lobby = new Lobby(this, net_manager);
 
   auto point = Options::getInstance().windowPosition("lobby");
-  if (!Options::getInstance().restoreWindowPositionEnabled() || !point.has_value())
+  if (!Options::getInstance().restoreWindowPositionEnabled() || !point.has_value() || !pointExistsOnScreen(point.value()))
   {
     QRect geometry = QGuiApplication::primaryScreen()->geometry();
     int x = (geometry.width() - w_lobby->width()) / 2;
@@ -233,6 +233,18 @@ void AOApplication::initBASS()
   }
 }
 
+bool AOApplication::pointExistsOnScreen(QPoint point)
+{
+  for (QScreen *screen : QApplication::screens())
+  {
+    if (screen->availableGeometry().contains(point))
+    {
+      return true;
+    }
+  }
+  return false;
+}
+
 #if (defined(_WIN32) || defined(_WIN64))
 void AOApplication::load_bass_plugins()
 {

src/aoapplication.h

@@ -325,6 +325,8 @@ public:
   // The file name of the log file in base/logs.
   QString log_filename;
 
+  bool pointExistsOnScreen(QPoint point);
+
   void initBASS();
   static void load_bass_plugins();
   static void CALLBACK BASSreset(HSTREAM handle, DWORD channel, DWORD data, void *user);

src/courtroom.cpp

@@ -1373,7 +1373,7 @@ void Courtroom::done_received()
   if (Options::getInstance().restoreWindowPositionEnabled())
   {
     auto maybe_point = Options::getInstance().windowPosition("courtroom");
-    if (maybe_point.has_value())
+    if (maybe_point.has_value() && ao_app->pointExistsOnScreen(maybe_point.value()))
     {
       qDebug() << maybe_point.value();
       QMainWindow::move(maybe_point.value());