From b4cb4fb7552d35c267bdb66913e4c822f16346ab Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Thu, 29 Oct 2020 00:29:04 +0800
Subject: ...

---
 include/cru/ui/render/RenderObject.hpp | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'include/cru/ui/render')

diff --git a/include/cru/ui/render/RenderObject.hpp b/include/cru/ui/render/RenderObject.hpp
index 4e5c9060..20e095fa 100644
--- a/include/cru/ui/render/RenderObject.hpp
+++ b/include/cru/ui/render/RenderObject.hpp
@@ -74,6 +74,8 @@ class RenderObject : public Object {
   void AddChild(RenderObject* render_object, Index position);
   void RemoveChild(Index position);
 
+  void TraverseDescendants(const std::function<void(RenderObject*)>& action);
+
   // Offset from parent's lefttop to lefttop of this render object. Margin is
   // accounted for.
   Point GetOffset() const { return offset_; }
-- 
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