Controller Remapping GUI v2 (#3144)

* Remapping GUI V2 - initial commit

* Unmap button with escape key

* Allow combination inputs

* Use separate class for SDL event signals so that i can work with the SDL window event loop

* Automatically pause game when GUI open to better manage event queue

* Move sd;_gamepad_added event from remap object to GUI object to avoid conflicts with sdl window

* Use signals on button/trigger to release to make GUI more responsive

* pause game while KBM window is open for consistency

* don't check gamepad when game is running to avoid conflicts

* Block all other sdl events instead of pausing game, automatic parse inputs after saving

* Don't block window restored or window exposed cases

* Properly exit event loop thread on exit

src/sdl_window.cpp

@@ -20,6 +20,10 @@
 #include "sdl_window.h"
 #include "video_core/renderdoc.h"
 
+#ifdef ENABLE_QT_GUI
+#include "qt_gui/sdl_event_wrapper.h"
+#endif
+
 #ifdef __APPLE__
 #include "SDL3/SDL_metal.h"
 #endif
@@ -340,6 +344,13 @@ void WindowSDL::WaitEvent() {
         return;
     }
 
+#ifdef ENABLE_QT_GUI
+    if (SdlEventWrapper::Wrapper::wrapperActive) {
+        if (SdlEventWrapper::Wrapper::GetInstance()->ProcessEvent(&event))
+            return;
+    }
+#endif
+
     if (ImGui::Core::ProcessEvent(&event)) {
         return;
     }