X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2FMetricsInfo.h;h=88dd39fd7d7e5958b5eba94972d9aa3adf7c7c53;hb=3bb588f4aaa810fa9cf00a93cf1bd6015cc4d8cf;hp=020b25f87428baa84e912aa915c518beb082177f;hpb=6d4709d46c750eaa31e06d0da18a98a1e71bdea2;p=lyx.git

diff --git a/src/MetricsInfo.h b/src/MetricsInfo.h
index 020b25f874..88dd39fd7d 100644
--- a/src/MetricsInfo.h
+++ b/src/MetricsInfo.h
@@ -18,7 +18,6 @@
 #include "FontInfo.h"
 
 #include "support/strfwd.h"
-#include "support/types.h"
 
 #include <string>
 
@@ -127,14 +126,16 @@ public:
 class TextMetricsInfo {};
 
 
-/// Generic base for temporarily changing things.
-/// The original state gets restored when the Changer is destructed.
+/// Generic base for temporarily changing things. The derived class is
+/// responsible for restoring the original state when the Changer is
+/// destructed.
 template <class Struct, class Temp = Struct>
 class Changer {
-public:
-	///
-	Changer(Struct & orig) : orig_(orig) {}
 protected:
+	///
+	Changer(Struct & orig, Temp const & save) : orig_(orig), save_(save) {}
+	///
+	Changer(Struct & orig) : orig_(orig), save_(orig) {}
 	///
 	Struct & orig_;
 	///