Fix a crash when converting an integer type to 'subtract'.

git-svn-id: http://svn.voria.com/code@709 1f10aa63-cdf2-0310-b900-c93c546f37ac

diff --git a/synfig-core/trunk/src/synfig/valuenode_subtract.cpp b/synfig-core/trunk/src/synfig/valuenode_subtract.cpp
index a541edc..cb43e95 100644 (file)
--- a/synfig-core/trunk/src/synfig/valuenode_subtract.cpp
+++ b/synfig-core/trunk/src/synfig/valuenode_subtract.cpp
@@ -197,7 +197,7 @@ synfig::ValueNode_Subtract::operator()(Time t)const
        if(get_type()==ValueBase::TYPE_COLOR)
                return ((*ref_a)(t).get(Color())-(*ref_b)(t).get(Color()))*(*scalar)(t).get(Real());
        if(get_type()==ValueBase::TYPE_INTEGER)
-               return ((*ref_a)(t).get(int())-(*ref_b)(t).get(int()))*(*scalar)(t).get(Real());
+               return static_cast<int>(((*ref_a)(t).get(int())-(*ref_b)(t).get(int()))*(*scalar)(t).get(Real()) + 0.5f);
        if(get_type()==ValueBase::TYPE_REAL)
                return ((*ref_a)(t).get(Vector::value_type())-(*ref_b)(t).get(Vector::value_type()))*(*scalar)(t).get(Real());
        if(get_type()==ValueBase::TYPE_VECTOR)