Add a member to check if the value node is invertible

[synfig.git] / synfig-core / trunk / src / synfig / valuenode_scale.h

diff --git a/synfig-core/trunk/src/synfig/valuenode_scale.h b/synfig-core/trunk/src/synfig/valuenode_scale.h
index a11f6e0..fba1aa0 100644 (file)
--- a/synfig-core/trunk/src/synfig/valuenode_scale.h
+++ b/synfig-core/trunk/src/synfig/valuenode_scale.h
@@ -65,7 +65,10 @@ public:
        virtual ValueBase operator()(Time t)const;
 
        //! Returns the modified Link to match the target value at time t
-       virtual ValueBase operator()(Time t, const synfig::Point &target_value) const;
+       ValueBase get_inverse(Time t, const synfig::Vector &target_value) const;
+       ValueBase get_inverse(Time t, const synfig::Angle &target_value) const;
+
+       bool is_invertible(Time t)const;
 
        virtual String get_name()const;