int scale_activepoints(const synfigapp::ValueDesc& value_desc,const synfig::Time& old_begin,const synfig::Time& old_end,const synfig::Time& new_begin,const synfig::Time& new_end);
int scale_waypoints(const synfigapp::ValueDesc& value_desc,const synfig::Time& old_begin,const synfig::Time& old_end,const synfig::Time& new_begin,const synfig::Time& new_end);
int scale_activepoints(const synfigapp::ValueDesc& value_desc,const synfig::Time& old_begin,const synfig::Time& old_end,const synfig::Time& new_begin,const synfig::Time& new_end);
int scale_waypoints(const synfigapp::ValueDesc& value_desc,const synfig::Time& old_begin,const synfig::Time& old_end,const synfig::Time& new_begin,const synfig::Time& new_end);