add ::n_vcas() method to VCAManager

diff --git a/libs/ardour/ardour/vca_manager.h b/libs/ardour/ardour/vca_manager.h
index c23c322fed9c785face3faf521eaa76780360943..f4096c23b548507c95075d11a16d8cef87f3413a 100644 (file)
--- a/libs/ardour/ardour/vca_manager.h
+++ b/libs/ardour/ardour/vca_manager.h
@@ -49,6 +49,7 @@ class VCAManager : public SessionHandleRef, public PBD::StatefulDestructible
        boost::shared_ptr<VCA> vca_by_number(uint32_t) const;
 
        VCAList vcas() const;
+       VCAList::size_type n_vcas() const { return _vcas.size(); }
 
        PBD::Signal1<void,VCAList&> VCAAdded;