try to fix "hidden method" warning

diff --git a/src/live_effects/lpe-slant.h b/src/live_effects/lpe-slant.h
index ca4a404e57e7ac8ca830e59d29faae8bb3ba81ac..bdfe55383451f6f9c5a3aeb2ba8e0a6584a21733 100644 (file)
--- a/src/live_effects/lpe-slant.h
+++ b/src/live_effects/lpe-slant.h
@@ -24,8 +24,9 @@ public:
     LPESlant(LivePathEffectObject *lpeobject);
     virtual ~LPESlant();
 
-    void doEffect(SPCurve * curve);
-    
+    using Effect::doEffect;
+    virtual void doEffect(SPCurve * curve);
+
 private:
     ScalarParam factor;
     PointParam center;