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1 files changed, 40 insertions, 0 deletions

diff --git a/include/cru/ui/render/window_render_object.hpp b/include/cru/ui/render/window_render_object.hpp
new file mode 100644
index 00000000..63eb8588
--- /dev/null
+++ b/include/cru/ui/render/window_render_object.hpp
@@ -0,0 +1,40 @@
+#pragma once
+#include "pre.hpp"
+
+#include "render_object.hpp"
+
+namespace cru::ui {
+class Window;
+}
+
+namespace cru::ui::render {
+class WindowRenderObject : public RenderObject {
+ public:
+  WindowRenderObject(Window* window) : window_(window) {}
+  WindowRenderObject(const WindowRenderObject& other) = delete;
+  WindowRenderObject(WindowRenderObject&& other) = delete;
+  WindowRenderObject& operator=(const WindowRenderObject& other) = delete;
+  WindowRenderObject& operator=(WindowRenderObject&& other) = delete;
+  ~WindowRenderObject() override = default;
+
+  void MeasureAndLayout();
+
+  void Draw(ID2D1RenderTarget* render_target) override;
+
+  RenderObject* HitTest(const Point& point) override;
+
+ protected:
+  void OnAddChild(RenderObject* new_child, int position) override;
+
+  Size OnMeasureContent(const Size& available_size) override;
+  void OnLayoutContent(const Rect& content_rect) override;
+
+ private:
+  RenderObject* GetChild() const {
+    return GetChildren().empty() ? nullptr : GetChildren()[0];
+  }
+
+ private:
+  Window* window_;
+};
+}  // namespace cru::ui::render