diff --git a/src/kiwano/2d/Frame.h b/src/kiwano/2d/Frame.h
index 6e00f428..4154c8c2 100644
--- a/src/kiwano/2d/Frame.h
+++ b/src/kiwano/2d/Frame.h
@@ -96,6 +96,18 @@ public:
     /// @brief 获取裁剪矩形
     Rect const& GetCropRect() const;
 
+    /// \~chinese
+    /// @brief 获取图像原宽度
+    float GetSourceWidth() const;
+
+    /// \~chinese
+    /// @brief 获取图像原高度
+    float GetSourceHeight() const;
+
+    /// \~chinese
+    /// @brief 获取图像原大小
+    Size GetSourceSize() const;
+
     /// \~chinese
     /// @brief 获取纹理
     TexturePtr GetTexture() const;
@@ -135,6 +147,33 @@ inline Rect const& Frame::GetCropRect() const
     return crop_rect_;
 }
 
+inline float Frame::GetSourceWidth() const
+{
+    if (texture_)
+    {
+        return texture_->GetWidth();
+    }
+    return 0.0f;
+}
+
+inline float Frame::GetSourceHeight() const
+{
+    if (texture_)
+    {
+        return texture_->GetHeight();
+    }
+    return 0.0f;
+}
+
+inline Size Frame::GetSourceSize() const
+{
+    if (texture_)
+    {
+        return texture_->GetSize();
+    }
+    return Size();
+}
+
 inline TexturePtr Frame::GetTexture() const
 {
     return texture_;
diff --git a/src/kiwano/2d/Sprite.cpp b/src/kiwano/2d/Sprite.cpp
index 1cf477cd..66d17663 100644
--- a/src/kiwano/2d/Sprite.cpp
+++ b/src/kiwano/2d/Sprite.cpp
@@ -102,12 +102,47 @@ bool Sprite::Load(Resource const& res, bool autoresize)
     return false;
 }
 
+float Sprite::GetSourceWidth() const
+{
+    if (frame_)
+    {
+        return frame_->GetSourceWidth();
+    }
+    return 0.0f;
+}
+
+float Sprite::GetSourceHeight() const
+{
+    if (frame_)
+    {
+        return frame_->GetSourceHeight();
+    }
+    return 0.0f;
+}
+
+Size Sprite::GetSourceSize() const
+{
+    if (frame_)
+    {
+        return frame_->GetSourceSize();
+    }
+    return Size();
+}
+
+Rect Sprite::GetCropRect() const
+{
+    if (frame_)
+    {
+        return frame_->GetCropRect();
+    }
+    return Rect();
+}
+
 void Sprite::SetCropRect(const Rect& crop_rect)
 {
     if (frame_)
     {
         frame_->SetCropRect(crop_rect);
-        SetSize(Size{ frame_->GetWidth(), frame_->GetHeight() });
     }
 }
 
@@ -118,7 +153,7 @@ void Sprite::SetFrame(FramePtr frame, bool autoresize)
         frame_ = frame;
         if (frame_ && autoresize)
         {
-            SetSize(Size{ frame_->GetWidth(), frame_->GetHeight() });
+            SetSize(frame_->GetSize());
         }
     }
 }
diff --git a/src/kiwano/2d/Sprite.h b/src/kiwano/2d/Sprite.h
index 410b560c..2d163989 100644
--- a/src/kiwano/2d/Sprite.h
+++ b/src/kiwano/2d/Sprite.h
@@ -72,15 +72,31 @@ public:
     /// \~chinese
     /// @brief 加载本地图片
     /// @param file_path 本地图片路径
-    /// @param[in] autoresize 是否自动调整自身大小为图像大小
+    /// @param autoresize 是否自动调整自身大小为图像大小
     bool Load(String const& file_path, bool autoresize = true);
 
     /// \~chinese
     /// @brief 加载图像资源
     /// @param res 图片资源
-    /// @param[in] autoresize 是否自动调整自身大小为图像大小
+    /// @param autoresize 是否自动调整自身大小为图像大小
     bool Load(Resource const& res, bool autoresize = true);
 
+    /// \~chinese
+    /// @brief 获取图像原宽度
+    float GetSourceWidth() const;
+
+    /// \~chinese
+    /// @brief 获取图像原高度
+    float GetSourceHeight() const;
+
+    /// \~chinese
+    /// @brief 获取图像原大小
+    Size GetSourceSize() const;
+
+    /// \~chinese
+    /// @brief 获取裁剪矩形
+    Rect GetCropRect() const;
+
     /// \~chinese
     /// @brief 使用矩形区域裁剪精灵
     /// @param crop_rect 裁剪矩形
@@ -93,7 +109,7 @@ public:
     /// \~chinese
     /// @brief 设置图像帧
     /// @param[in] frame 图像帧
-    /// @param[in] autoresize 是否自动调整自身大小为图像大小
+    /// @param autoresize 是否自动调整自身大小为图像大小
     void SetFrame(FramePtr frame, bool autoresize = true);
 
     void OnRender(RenderContext& ctx) override;
diff --git a/src/kiwano/2d/action/ActionHelper.h b/src/kiwano/2d/action/ActionHelper.h
index ceba9ea7..fd4d169f 100644
--- a/src/kiwano/2d/action/ActionHelper.h
+++ b/src/kiwano/2d/action/ActionHelper.h
@@ -103,6 +103,11 @@ struct ActionHelper
         return ptr;
     }
 
+    inline ActionPtr operator->() const
+    {
+        return ptr;
+    }
+
 private:
     ActionPtr ptr;
 };
@@ -199,6 +204,11 @@ struct TweenHelper
         return ptr;
     }
 
+    inline ActionTweenPtr operator->() const
+    {
+        return ptr;
+    }
+
 private:
     ActionTweenPtr ptr;
 };