IECore::ConstInternedStringVectorDataPtr SceneReader::computeChildNames( const ScenePath &path, const Gaffer::Context *context, const ScenePlug *parent ) const
{
ConstSceneInterfacePtr s = scene( path );
if( !s )
{
return parent->childNamesPlug()->defaultValue();
}
// get the child names
InternedStringVectorDataPtr resultData = new InternedStringVectorData;
vector<InternedString> &result = resultData->writable();
s->childNames( result );
// filter out any which don't have the right tags
std::string tagsString = tagsPlug()->getValue();
if( !tagsString.empty() )
{
typedef boost::tokenizer<boost::char_separator<char> > Tokenizer;
Tokenizer tagsTokenizer( tagsString, boost::char_separator<char>( " " ) );
vector<InternedString> tags;
std::copy( tagsTokenizer.begin(), tagsTokenizer.end(), back_inserter( tags ) );
vector<InternedString>::iterator newResultEnd = result.begin();
SceneInterface::NameList childTags;
for( vector<InternedString>::const_iterator cIt = result.begin(), cEIt = result.end(); cIt != cEIt; ++cIt )
{
ConstSceneInterfacePtr child = s->child( *cIt );
childTags.clear();
child->readTags( childTags, IECore::SceneInterface::EveryTag );
bool childMatches = false;
for( SceneInterface::NameList::const_iterator tIt = childTags.begin(), tEIt = childTags.end(); tIt != tEIt; ++tIt )
{
if( find( tags.begin(), tags.end(), *tIt ) != tags.end() )
{
childMatches = true;
break;
}
}
if( childMatches )
{
*newResultEnd++ = *cIt;
}
}
result.erase( newResultEnd, result.end() );
}
return resultData;
}
IECore::ConstInternedStringVectorDataPtr SceneReader::computeChildNames( const ScenePath &path, const Gaffer::Context *context, const ScenePlug *parent ) const
{
std::string fileName = fileNamePlug()->getValue();
if( !fileName.size() )
{
return parent->childNamesPlug()->defaultValue();
}
ConstSceneInterfacePtr s = SharedSceneInterfaces::get( fileName );
s = s->scene( path );
InternedStringVectorDataPtr result = new InternedStringVectorData;
s->childNames( result->writable() );
return result;
}