Use link_count from children vocabulary and return the stored vocabulary if already...

[synfig.git] / synfig-core / src / synfig / valuenode_subtract.cpp

diff --git a/synfig-core/src/synfig/valuenode_subtract.cpp b/synfig-core/src/synfig/valuenode_subtract.cpp
index 7436551..34d9d56 100644 (file)
--- a/synfig-core/src/synfig/valuenode_subtract.cpp
+++ b/synfig-core/src/synfig/valuenode_subtract.cpp
@@ -60,6 +60,8 @@ using namespace synfig;
 synfig::ValueNode_Subtract::ValueNode_Subtract(const ValueBase &value):
        LinkableValueNode(value.get_type())
 {
+       Vocab ret(get_children_vocab());
+       set_children_vocab(ret);
        set_link("scalar",ValueNode_Const::create(Real(1.0)));
        ValueBase::Type id(value.get_type());
 
@@ -249,6 +251,9 @@ ValueNode_Subtract::check_type(ValueBase::Type type)
 LinkableValueNode::Vocab
 ValueNode_Subtract::get_children_vocab_vfunc()const
 {
+       if(children_vocab.size())
+               return children_vocab;
+
        LinkableValueNode::Vocab ret;
 
        ret.push_back(ParamDesc(ValueBase(),"lhs")