From 193b3fe67eaadf291ae77f689362d87861c26118 Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Thu, 20 Jan 2022 23:17:17 +0800
Subject: ...

---
 include/cru/ui/mapper/MapperRegistry.hpp | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'include/cru/ui/mapper/MapperRegistry.hpp')

diff --git a/include/cru/ui/mapper/MapperRegistry.hpp b/include/cru/ui/mapper/MapperRegistry.hpp
index a170440d..94643ce0 100644
--- a/include/cru/ui/mapper/MapperRegistry.hpp
+++ b/include/cru/ui/mapper/MapperRegistry.hpp
@@ -8,6 +8,8 @@
 namespace cru::ui::mapper {
 class CRU_UI_API MapperRegistry {
  public:
+  static MapperRegistry* GetInstance();
+
   MapperRegistry();
 
   CRU_DELETE_COPY(MapperRegistry)
@@ -17,6 +19,16 @@ class CRU_UI_API MapperRegistry {
 
   const std::vector<MapperBase*>& GetAllMappers() const { return mapper_list_; }
 
+  template <typename T>
+  BasicMapper<T>* GetMapper() const {
+    for (auto mapper : mapper_list_) {
+      if (mapper->GetTypeIndex() == typeid(T)) {
+        return static_cast<BasicMapper<T>*>(mapper);
+      }
+    }
+    return nullptr;
+  }
+
   void RegisterMapper(MapperBase* mapper);
   void UnregisterMapper(MapperBase* mapper);
 
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