nodeparamview: implemented add button

app/node/distort/cornerpin/cornerpindistortnode.cpp

@@ -48,6 +48,9 @@ CornerPinDistortNode::CornerPinDistortNode()
   gizmo_resize_handle_[1] = AddDraggableGizmo<PointGizmo>({NodeKeyframeTrackReference(NodeInput(this, kTopRightInput), 0), NodeKeyframeTrackReference(NodeInput(this, kTopRightInput), 1)});
   gizmo_resize_handle_[2] = AddDraggableGizmo<PointGizmo>({NodeKeyframeTrackReference(NodeInput(this, kBottomRightInput), 0), NodeKeyframeTrackReference(NodeInput(this, kBottomRightInput), 1)});
   gizmo_resize_handle_[3] = AddDraggableGizmo<PointGizmo>({NodeKeyframeTrackReference(NodeInput(this, kBottomLeftInput), 0), NodeKeyframeTrackReference(NodeInput(this, kBottomLeftInput), 1)});
+
+  SetFlags(kVideoEffect);
+  SetEffectInput(kTextureInput);
 }
 
 void CornerPinDistortNode::Retranslate()

app/node/distort/crop/cropdistortnode.cpp

@@ -56,6 +56,9 @@ CropDistortNode::CropDistortNode()
   point_gizmo_[kGizmoScaleBottomRight] = AddDraggableGizmo<PointGizmo>({kRightInput, kBottomInput});
   point_gizmo_[kGizmoScaleCenterLeft] = AddDraggableGizmo<PointGizmo>({kLeftInput});
   point_gizmo_[kGizmoScaleCenterRight] = AddDraggableGizmo<PointGizmo>({kRightInput});
+
+  SetFlags(kVideoEffect);
+  SetEffectInput(kTextureInput);
 }
 
 void CropDistortNode::Retranslate()

app/node/distort/flip/flipdistortnode.cpp

@@ -33,6 +33,9 @@ FlipDistortNode::FlipDistortNode()
   AddInput(kHorizontalInput, NodeValue::kBoolean, false);
 
   AddInput(kVerticalInput, NodeValue::kBoolean, false);
+
+  SetFlags(kVideoEffect);
+  SetEffectInput(kTextureInput);
 }
 
 Node* FlipDistortNode::copy() const

app/node/distort/transform/transformdistortnode.cpp

@@ -64,6 +64,9 @@ TransformDistortNode::TransformDistortNode()
     point_gizmo_[i]->AddInput(NodeKeyframeTrackReference(NodeInput(this, kScaleInput), 1));
     point_gizmo_[i]->SetDragValueBehavior(PointGizmo::kAbsolute);
   }
+
+  SetFlags(kVideoEffect);
+  SetEffectInput(kTextureInput);
 }
 
 void TransformDistortNode::Retranslate()