bool ParameterisedHolder<B>::setParameterisedValuesWalk( bool lazy, IECore::ParameterPtr parameter, MStatus &status )
{
MFnDependencyNode fnDN( B::thisMObject() );
// traverse child parameters if we have them
bool childParametersWereSet = false;
if( parameter->isInstanceOf( CompoundParameter::staticTypeId() ) )
{
CompoundParameterPtr compoundParameter = boost::static_pointer_cast<CompoundParameter>( parameter );
const CompoundParameter::ParameterVector &childParameters = compoundParameter->orderedParameters();
for( CompoundParameter::ParameterVector::const_iterator cIt=childParameters.begin(); cIt!=childParameters.end(); cIt++ )
{
bool b = setParameterisedValuesWalk( lazy, *cIt, status );
childParametersWereSet = childParametersWereSet || b;
}
}
// then set this parameter if necessary
bool thisParameterWasSet = false;
if( parameter->name()!="" && (!lazy || m_dirtyParameters.find( parameter )!=m_dirtyParameters.end()) )
{
ParameterToAttributeNameMap::const_iterator nIt = m_parametersToAttributeNames.find( parameter );
if( nIt==m_parametersToAttributeNames.end() )
{
msg( Msg::Error, "ParameterisedHolder::setParameterisedValues", boost::format( "Unable to find plug name for parameter %s" ) % parameter->name() );
status = MS::kFailure;
}
else
{
MPlug p = fnDN.findPlug( nIt->second );
if( p.isNull() )
{
msg( Msg::Error, "ParameterisedHolder::setParameterisedValues", boost::format( "Unable to find plug for parameter %s" ) % parameter->name() );
status = MS::kFailure;
}
else
{
try
{
MStatus s = ParameterHandler::setValue( p, parameter );
if( !s )
{
msg( Msg::Error, "ParameterisedHolder::setParameterisedValues", boost::format( "Failed to set parameter value from %s" ) % p.name().asChar() );
status = s;
}
else
{
m_dirtyParameters.erase( parameter );
thisParameterWasSet = true;
}
}
catch( std::exception &e )
{
msg( Msg::Error, "ParameterisedHolder::setParameterisedValues", boost::format( "Caught exception while setting parameter value from %s : %s" ) % p.name().asChar() % e.what());
status = MS::kFailure;
}
catch( ... )
{
msg( Msg::Error, "ParameterisedHolder::setParameterisedValues", boost::format( "Caught unknown exception while setting parameter value from %s" ) % p.name().asChar() );
status = MS::kFailure;
}
}
}
}
// increment the updateCount if necessary
if( thisParameterWasSet || childParametersWereSet )
{
CompoundObjectPtr userData = parameter->userData();
IntDataPtr updateCount = userData->member<IntData>( "updateCount" );
if( !updateCount )
{
updateCount = new IntData( 0 );
userData->members()["updateCount"] = updateCount;
}
else
{
updateCount->writable()++;
}
}
return childParametersWereSet || thisParameterWasSet;
}
