X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2FRow.h;h=49513d32b970b63124ce6a3c5290283ab145b317;hb=08aef452e7d3d5901e42b5e6a38ecaf18cd38529;hp=a1fedd7e5da97d043f8e55936aa8e942903af27e;hpb=a71610b9d72d346ac694518d6dab634f02247e2b;p=lyx.git

diff --git a/src/Row.h b/src/Row.h
index a1fedd7e5d..49513d32b9 100644
--- a/src/Row.h
+++ b/src/Row.h
@@ -136,6 +136,29 @@ public:
 
 	///
 	Row();
+	/**
+	 * Helper function: set variable \c var to value \c val, and mark
+	 * row as changed is the values were different. This is intended
+	 * for use when changing members of the row object.
+	 */
+	template<class T1, class T2>
+	void change(T1 & var, T2 const val) {
+		if (var != val)
+			changed(true);
+		var = val;
+	}
+	/**
+	 * Helper function: set variable \c var to value \c val, and mark
+	 * row as changed is the values were different. This is intended
+	 * for use when changing members of the row object.
+	 * This is the const version, useful for mutable members.
+	 */
+	template<class T1, class T2>
+	void change(T1 & var, T2 const val) const {
+		if (var != val)
+			changed(true);
+		var = val;
+	}
 	///
 	bool changed() const { return changed_; }
 	///