1 files changed, 14 insertions, 13 deletions
diff --git a/Swiften/Avatars/OfflineAvatarManager.h b/Swiften/Avatars/OfflineAvatarManager.h
index 2098990..11b1d5f 100644
--- a/Swiften/Avatars/OfflineAvatarManager.h
+++ b/Swiften/Avatars/OfflineAvatarManager.h
@@ -1,25 +1,26 @@
 /*
- * Copyright (c) 2010 Remko Tronçon
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
+ * Copyright (c) 2010-2015 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
  */
 
 #pragma once
 
 #include <Swiften/Avatars/AvatarProvider.h>
+#include <Swiften/Base/API.h>
 
 namespace Swift {
-	class AvatarStorage;
+    class AvatarStorage;
 
-	class OfflineAvatarManager : public AvatarProvider {
-		public:
-			OfflineAvatarManager(AvatarStorage*);
-			~OfflineAvatarManager();
+    class SWIFTEN_API OfflineAvatarManager : public AvatarProvider {
+        public:
+            OfflineAvatarManager(AvatarStorage*);
+            ~OfflineAvatarManager();
 
-			virtual std::string getAvatarHash(const JID&) const;
-			void setAvatar(const JID&, const std::string& hash);
+            virtual boost::optional<std::string> getAvatarHash(const JID&) const;
+            void setAvatar(const JID&, const std::string& hash);
 
-		private:
-			AvatarStorage* avatarStorage;
-	};
+        private:
+            AvatarStorage* avatarStorage;
+    };
 }