RMG: hook up state callback

Source/RMG/Callbacks.cpp

@@ -36,11 +36,12 @@ bool CoreCallbacks::Init(void)
 {
     // needed for Qt
     qRegisterMetaType<CoreDebugMessageType>("CoreDebugMessageType");
+    qRegisterMetaType<CoreDebugMessageType>("CoreStateCallbackType");
 
     this->LoadSettings();
 
     l_CoreCallbacks = this;
-    return CoreSetupCallbacks(this->coreDebugCallback);
+    return CoreSetupCallbacks(this->coreDebugCallback, this->coreStateCallback);
 }
 
 void CoreCallbacks::Stop(void)
@@ -78,3 +79,13 @@ void CoreCallbacks::coreDebugCallback(CoreDebugMessageType type, std::string con
 
     emit l_CoreCallbacks->OnCoreDebugCallback(type, QString::fromStdString(context), QString::fromStdString(message));
 }
+
+void CoreCallbacks::coreStateCallback(CoreStateCallbackType type, int value)
+{
+    if (l_CoreCallbacks == nullptr)
+    {
+        return;
+    }
+
+    emit l_CoreCallbacks->OnCoreStateCallback(type, value);
+}

Source/RMG/Callbacks.hpp

@@ -31,9 +31,11 @@ public:
 
 private:
     static void coreDebugCallback(CoreDebugMessageType type, std::string context, std::string message);
+    static void coreStateCallback(CoreStateCallbackType type, int value);
 
 signals:
     void OnCoreDebugCallback(CoreDebugMessageType type, QString context, QString message);
+    void OnCoreStateCallback(CoreStateCallbackType type, int value);
 };
 
 #endif // RMG_CALLBACKS_HPP

Source/RMG/UserInterface/MainWindow.cpp

@@ -94,6 +94,7 @@ bool MainWindow::Init(QApplication* app, bool showUI)
 
     connect(coreCallBacks, &CoreCallbacks::OnCoreDebugCallback, this, &MainWindow::on_Core_DebugCallback);
     connect(coreCallBacks, &CoreCallbacks::OnCoreDebugCallback, &this->logDialog, &Dialog::LogDialog::AddLogLine);
+    connect(coreCallBacks, &CoreCallbacks::OnCoreStateCallback, this, &MainWindow::on_Core_StateCallback);
     connect(app, &QGuiApplication::applicationStateChanged, this, &MainWindow::on_QGuiApplication_applicationStateChanged);
 
     return true;
@@ -2019,3 +2020,21 @@ void MainWindow::on_Core_DebugCallback(CoreDebugMessageType type, QString contex
     }
     this->ui_TimerId = this->startTimer(this->ui_TimerTimeout * 1000);
 }
+
+void MainWindow::on_Core_StateCallback(CoreStateCallbackType type, int value)
+{
+    if (type == CoreStateCallbackType::SaveStateLoaded)
+    {
+        if (value == 0)
+        {
+            OnScreenDisplaySetMessage("Failed to load save state.");
+        }
+    }
+    else if (type == CoreStateCallbackType::SaveStateSaved)
+    {
+        if (value == 0)
+        {
+            OnScreenDisplaySetMessage("Failed to save state.");
+        }
+    }
+}

Source/RMG/UserInterface/MainWindow.hpp

@@ -198,6 +198,7 @@ class MainWindow : public QMainWindow, private Ui::MainWindow
     void on_VidExt_ToggleFS(bool fullscreen);
 
     void on_Core_DebugCallback(CoreDebugMessageType type, QString context, QString message);
+    void on_Core_StateCallback(CoreStateCallbackType type, int value);
 };
 } // namespace UserInterface