...

1 files changed, 23 insertions, 0 deletions

diff --git a/include/cru/ui/render/SingleChildRenderObject.h b/include/cru/ui/render/SingleChildRenderObject.h
new file mode 100644
index 00000000..cc9e4126
--- /dev/null
+++ b/include/cru/ui/render/SingleChildRenderObject.h
@@ -0,0 +1,23 @@
+#pragma once
+#include "RenderObject.h"
+
+namespace cru::ui::render {
+class CRU_UI_API SingleChildRenderObject : public RenderObject {
+  CRU_DEFINE_CLASS_LOG_TAG(u"cru::ui::render::SingleChildRenderObject")
+
+ public:
+  SingleChildRenderObject() = default;
+  CRU_DELETE_COPY(SingleChildRenderObject)
+  CRU_DELETE_MOVE(SingleChildRenderObject)
+  ~SingleChildRenderObject() override = default;
+
+  RenderObject* GetChild() const { return child_; }
+  void SetChild(RenderObject* new_child);
+
+ protected:
+  virtual void OnChildChanged(RenderObject* old_child, RenderObject* new_child);
+
+ private:
+  RenderObject* child_ = nullptr;
+};
+}  // namespace cru::ui::render