void BranchCreator::hashBranchChildNames( const ScenePath &parentPath, const ScenePath &branchPath, const Gaffer::Context *context, IECore::MurmurHash &h ) const
{
const InternedStringVectorData *fullPathData = context->get<InternedStringVectorData>( ScenePlug::scenePathContextName, NULL );
if( fullPathData )
{
// In the common case, the full path is in the context already (and we just decomposed it
// into parentPath and branchPath for the convenience of derived classes).
SceneProcessor::hashChildNames( fullPathData->readable(), context, inPlug(), h );
}
else
{
// In the rare case that we're being called from from our own globals computation
// via hashMapping(), the full path isn't in the context, so we need to
// construct it ourselves.
ScenePath fullPath( parentPath );
fullPath.insert( fullPath.end(), branchPath.begin(), branchPath.end() );
SceneProcessor::hashChildNames( fullPath, context, inPlug(), h );
}
}
Gaffer::ContextPtr Instancer::instanceContext( const Gaffer::Context *parentContext, const ScenePath &branchPath ) const
{
if( branchPath.size() == 0 )
{
return 0;
}
ContextPtr result = new Context( *parentContext );
InternedStringVectorDataPtr instancePath = new InternedStringVectorData;
instancePath->writable().insert( instancePath->writable().end(), branchPath.begin() + 1, branchPath.end() );
result->set( ScenePlug::scenePathContextName, instancePath.get() );
result->set( "instancer:id", instanceIndex( branchPath ) );
return result;
}
void Duplicate::sourcePath( const ScenePath &branchPath, ScenePath &source ) const
{
assert( branchPath.size() );
ScenePlug::stringToPath( targetPlug()->getValue(), source );
copy( ++branchPath.begin(), branchPath.end(), back_inserter( source ) );
}