2 files changed, 7 insertions, 3 deletions
diff --git a/src/lib/image_proxy.cc b/src/lib/image_proxy.cc
index c803e6bd0..0b079725d 100644
--- a/src/lib/image_proxy.cc
+++ b/src/lib/image_proxy.cc
@@ -46,3 +46,9 @@ image_proxy_factory (shared_ptr<cxml::Node> xml, shared_ptr<Socket> socket)
 
 	throw NetworkError (_("Unexpected image type received by server"));
 }
+
+bool
+ImageProxy::same (shared_ptr<const ImageProxy> other) const
+{
+	return image()->digest() == other->image()->digest();
+}
diff --git a/src/lib/image_proxy.h b/src/lib/image_proxy.h
index 39cbda27d..9367bc0a7 100644
--- a/src/lib/image_proxy.h
+++ b/src/lib/image_proxy.h
@@ -64,9 +64,7 @@ public:
 	virtual void add_metadata (xmlpp::Node *) const = 0;
 	virtual void send_binary (boost::shared_ptr<Socket>) const = 0;
 	/** @return true if our image is definitely the same as another, false if it is probably not */
-	virtual bool same (boost::shared_ptr<const ImageProxy>) const {
-		return false;
-	}
+	virtual bool same (boost::shared_ptr<const ImageProxy>) const;
 };
 
 boost::shared_ptr<ImageProxy> image_proxy_factory (boost::shared_ptr<cxml::Node> xml, boost::shared_ptr<Socket> socket);