MStatus OpHolder<B>::createResultAttribute()
{
IECore::OpPtr op = IECore::runTimeCast<IECore::Op>( ParameterisedHolder<B>::m_parameterised );
if( !op )
{
MString nodeName = ParameterisedHolder<B>::name();
msg( Msg::Error, "OpHolder::createResultAttribute", boost::format( "No Op found on node \"%s\"." ) % nodeName.asChar() );
return MStatus::kFailure;
}
MStatus s = ParameterisedHolder<B>::createOrUpdateAttribute( const_cast<IECore::Parameter *>( op->resultParameter() ), "result" );
if( !s )
{
MString nodeName = ParameterisedHolder<B>::name();
msg( Msg::Error, "OpHolder::createResultAttribute", boost::format( "Unable to update result attribute to represent class \"%s\" on node \"%s\"." ) % op->typeName() % nodeName.asChar() );
return s;
}
MFnDependencyNode fnDN( B::thisMObject() );
MObject attribute = fnDN.attribute( "result" );
MFnAttribute fnAttr( attribute );
fnAttr.setWritable( false );
fnAttr.setStorable( false );
return MStatus::kSuccess;
}
