Lots of UI Component Updates

src/dawn/scene/components/ui/UICanvas.hpp

@@ -5,6 +5,7 @@
 
 #pragma once
 #include "scene/SceneItemComponent.hpp"
+#include "display/RenderTarget.hpp"
 
 namespace Dawn {
   enum UIDrawType {
@@ -16,6 +17,13 @@ namespace Dawn {
   class UIComponent;
 
   class UICanvas : public SceneItemComponent {
+    protected:
+      void onBackBufferResize(
+        RenderTarget &target,
+        float_t width,
+        float_t height
+      );
+
     public:
       static std::shared_ptr<UICanvas> createCanvas(
         std::shared_ptr<Scene> scene
@@ -37,6 +45,8 @@ namespace Dawn {
       float_t getWidth();
       float_t getHeight();
 
-      void start() override;
+      void onStart() override;
+
+      ~UICanvas();
   };
 }