Allow the 'subtract' convert type to work with times.

git-svn-id: http://svn.voria.com/code@779 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 94e564a..f90aed3 100644 (file)
--- a/synfig-core/trunk/src/synfig/valuenode_subtract.cpp
+++ b/synfig-core/trunk/src/synfig/valuenode_subtract.cpp
@@ -78,6 +78,10 @@ synfig::ValueNode_Subtract::ValueNode_Subtract(const ValueBase &value):
                set_link("lhs",ValueNode_Const::create(value.get(Real())));
                set_link("rhs",ValueNode_Const::create(Real(0)));
                break;
+       case ValueBase::TYPE_TIME:
+               set_link("lhs",ValueNode_Const::create(value.get(Time())));
+               set_link("rhs",ValueNode_Const::create(Time(0,0)));
+               break;
        case ValueBase::TYPE_VECTOR:
                set_link("lhs",ValueNode_Const::create(value.get(Vector())));
                set_link("rhs",ValueNode_Const::create(Vector(0,0)));
@@ -175,6 +179,8 @@ synfig::ValueNode_Subtract::operator()(Time t)const
        }
        case ValueBase::TYPE_REAL:
                return ((*ref_a)(t).get(Vector::value_type())-(*ref_b)(t).get(Vector::value_type()))*(*scalar)(t).get(Real());
+       case ValueBase::TYPE_TIME:
+               return ((*ref_a)(t).get(Time())-(*ref_b)(t).get(Time()))*(*scalar)(t).get(Real());
        case ValueBase::TYPE_VECTOR:
                return ((*ref_a)(t).get(Vector())-(*ref_b)(t).get(Vector()))*(*scalar)(t).get(Real());
        default:
@@ -279,5 +285,6 @@ ValueNode_Subtract::check_type(ValueBase::Type type)
                || type==ValueBase::TYPE_COLOR
                || type==ValueBase::TYPE_INTEGER
                || type==ValueBase::TYPE_REAL
+               || type==ValueBase::TYPE_TIME
                || type==ValueBase::TYPE_VECTOR;
 }