Starting implementation of UI framework

src/Engine/UI/CMakeLists.txt

@@ -0,0 +1,6 @@
+target_sources(SeeleEngine
+    PRIVATE
+        UIComponent.h
+        UIComponent.cpp
+        UIRenderPath.h
+        UIRenderPath.cpp)

src/Engine/UI/UIComponent.h

@@ -0,0 +1,15 @@
+#pragma once
+#include "MinimalEngine.h"
+namespace Seele
+{
+DECLARE_REF(UIRenderPath)
+class UIComponent
+{
+public:
+    UIComponent(PUIRenderPath renderer);
+    virtual ~UIComponent();
+private:
+    PUIRenderPath renderer;
+};
+DEFINE_REF(UIComponent);
+} // namespace Seele

src/Engine/UI/UIRenderPath.h

@@ -0,0 +1,19 @@
+#pragma once
+#include "Window/RenderPath.h"
+#include "UIComponent.h"
+
+namespace Seele
+{
+class UIRenderPath : public RenderPath
+{
+public:
+    UIRenderPath();
+    virtual ~UIRenderPath();
+    virtual void beginFrame();
+    virtual void render();
+    virtual void endFrame();
+private:
+};
+DEFINE_REF(UIRenderPath);
+} // namespace Seele
+