From 27b0c949eda95d0fc97615acee899dd9b67bf781 Mon Sep 17 00:00:00 2001
From: Adrian Kummerlaender
Date: Mon, 4 Feb 2019 22:50:53 +0100
Subject: Add support for calling a function for each subgrid of Grid2D

---
 src/refinement/grid2D.h  |  4 ++++
 src/refinement/grid2D.hh | 13 +++++++++++++
 2 files changed, 17 insertions(+)

(limited to 'src/refinement')

diff --git a/src/refinement/grid2D.h b/src/refinement/grid2D.h
index c90078b..adfcd55 100644
--- a/src/refinement/grid2D.h
+++ b/src/refinement/grid2D.h
@@ -26,6 +26,8 @@
 
 #include <memory>
 #include <vector>
+#include <string>
+#include <functional>
 
 #include "core/unitConverter.h"
 #include "core/superLattice2D.h"
@@ -142,6 +144,8 @@ public:
 
   RefiningGrid2D<T,DESCRIPTOR>& refine(Vector<T,2> origin, Vector<T,2> extend, bool addCouplers=true);
 
+  void forEachGrid(const std::string& id, std::function<void(Grid2D<T,DESCRIPTOR>&,const std::string&)>&& f);
+
   std::size_t getActiveVoxelN() const;
 
 };
diff --git a/src/refinement/grid2D.hh b/src/refinement/grid2D.hh
index 6e9405e..6d16648 100644
--- a/src/refinement/grid2D.hh
+++ b/src/refinement/grid2D.hh
@@ -258,6 +258,19 @@ Vector<T,2> Grid2D<T,DESCRIPTOR>::alignExtendToGrid(Vector<T,2> extend) const
   };
 }
 
+template <typename T, template<typename> class DESCRIPTOR>
+void Grid2D<T,DESCRIPTOR>::forEachGrid(
+  const std::string& id,
+  std::function<void(Grid2D<T,DESCRIPTOR>&,const std::string&)>&& f)
+{
+  f(*this, id);
+  for (std::size_t i = 0; i < _fineGrids.size(); ++i) {
+    _fineGrids[i]->forEachGrid(id + "_" + std::to_string(i),
+                               std::forward<decltype(f)>(f));
+
+  }
+}
+
 template <typename T, template<typename> class DESCRIPTOR>
 std::size_t Grid2D<T,DESCRIPTOR>::getActiveVoxelN() const
 {
-- 
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