fix up cheat toggle

src/frontend/qt_sdl/EmuInstance.cpp

@@ -1161,7 +1161,7 @@ std::optional<FATStorage> EmuInstance::loadSDCard(const string& key) noexcept
 void EmuInstance::enableCheats(bool enable)
 {
     cheatsOn = enable;
-    if (cheatFile)
+    if (cheatsOn && cheatFile)
         nds->AREngine.Cheats = cheatFile->GetCodes();
     else
         nds->AREngine.Cheats.clear();

src/frontend/qt_sdl/EmuThread.cpp

@@ -648,6 +648,10 @@ void EmuThread::handleMessages()
                 msgResult = 1;
             }
             break;
+
+        case msg_EnableCheats:
+            emuInstance->enableCheats(msg.param.value<bool>());
+            break;
         }
 
         msgSemaphore.release();
@@ -815,6 +819,12 @@ int EmuThread::importSavefile(const QString& filename)
     return msgResult;
 }
 
+void EmuThread::enableCheats(bool enable)
+{
+    sendMessage({.type = msg_EnableCheats, .param = enable});
+    waitMessage();
+}
+
 void EmuThread::updateRenderer()
 {
     if (videoRenderer != lastVideoRenderer)

src/frontend/qt_sdl/EmuThread.h

@@ -83,6 +83,8 @@ public:
         msg_UndoStateLoad,
 
         msg_ImportSavefile,
+
+        msg_EnableCheats,
     };
 
     struct Message
@@ -124,6 +126,8 @@ public:
 
     int importSavefile(const QString& filename);
 
+    void enableCheats(bool enable);
+
     bool emuIsRunning();
     bool emuIsActive();
 

src/frontend/qt_sdl/Window.cpp

@@ -1655,7 +1655,12 @@ void MainWindow::onOpenPowerManagement()
 void MainWindow::onEnableCheats(bool checked)
 {
     localCfg.SetBool("EnableCheats", checked);
-    emuInstance->enableCheats(checked);
+    emuThread->enableCheats(checked);
+
+    emuInstance->doOnAllWindows([=](MainWindow* win)
+    {
+        win->actEnableCheats->setChecked(checked);
+    }, windowID);
 }
 
 void MainWindow::onSetupCheats()