Only toggle fullscreen on RMB if no modifier keys are pressed

Author: kblaschke

src/RenderLoop.cpp

@@ -404,7 +404,10 @@ void RenderLoop::MouseDownEvent(const SDL_MouseButtonEvent& event)
             break;
 
         case SDL_BUTTON_RIGHT:
-            _sdlRenderingWindow.ToggleFullscreen();
+            if (!_keyStates.AnyPressed())
+            {
+                _sdlRenderingWindow.ToggleFullscreen();
+            }
             break;
 
         case SDL_BUTTON_MIDDLE:

src/RenderLoop.h

@@ -21,6 +21,11 @@ class RenderLoop
 
 protected:
     struct ModifierKeyStates {
+        bool AnyPressed() const
+        {
+            return _shiftPressed || _ctrlPressed || _altPressed || _metaPressed;
+        }
+
         bool _shiftPressed{false}; //!< L/R shift keys
         bool _ctrlPressed{false}; //!< L/R control keys
         bool _altPressed{false}; //!< L/R alt keys