void StandardNodule::connection( const DragDropEvent &event, Gaffer::PlugPtr &input, Gaffer::PlugPtr &output )
{
Gaffer::PlugPtr dropPlug = IECore::runTimeCast<Gaffer::Plug>( event.data );
if( dropPlug )
{
Gaffer::PlugPtr thisPlug = plug();
if( thisPlug->node() != dropPlug->node() && thisPlug->direction()!=dropPlug->direction() )
{
if( thisPlug->direction()==Gaffer::Plug::In )
{
input = thisPlug;
output = dropPlug;
}
else
{
input = dropPlug;
output = thisPlug;
}
if( input->acceptsInput( output.get() ) )
{
// success
return;
}
}
}
input = output = 0;
return;
}
NodulePtr Nodule::create( Gaffer::PlugPtr plug )
{
IECore::ConstStringDataPtr noduleType = Gaffer::Metadata::plugValue<IECore::StringData>( plug.get(), "nodule:type" );
if( noduleType )
{
if( noduleType->readable() == "" )
{
return NULL;
}
const TypeNameCreatorMap &m = typeNameCreators();
TypeNameCreatorMap::const_iterator it = m.find( noduleType->readable() );
if( it != m.end() )
{
return it->second( plug );
}
else
{
IECore::msg( IECore::Msg::Warning, "Nodule::create", boost::format( "Nonexistent nodule type \"%s\" requested for plug \"%s\"" ) % noduleType->readable() % plug->fullName() );
}
}
const Gaffer::Node *node = plug->node();
if( node )
{
std::string plugPath = plug->relativeName( node );
const NamedCreatorMap &m = namedCreators();
IECore::TypeId t = node->typeId();
while( t!=IECore::InvalidTypeId )
{
NamedCreatorMap::const_iterator it = m.find( t );
if( it!=m.end() )
{
for( RegexAndCreatorVector::const_reverse_iterator nIt = it->second.rbegin(); nIt!=it->second.rend(); nIt++ )
{
if( boost::regex_match( plugPath, nIt->first ) )
{
return nIt->second( plug );
}
}
}
t = IECore::RunTimeTyped::baseTypeId( t );
}
}
const PlugCreatorMap &m = plugCreators();
IECore::TypeId t = plug->typeId();
while( t!=IECore::InvalidTypeId )
{
PlugCreatorMap::const_iterator it = m.find( t );
if( it!=m.end() )
{
return it->second( plug );
}
t = IECore::RunTimeTyped::baseTypeId( t );
}
return 0;
}
NodulePtr Nodule::create( Gaffer::PlugPtr plug )
{
if( !plug->getFlags( Gaffer::Plug::AcceptsInputs ) )
{
return 0;
}
Gaffer::ConstNodePtr node = plug->node();
if( node )
{
std::string plugPath = plug->relativeName( node );
const NamedCreatorMap &m = namedCreators();
IECore::TypeId t = node->typeId();
while( t!=IECore::InvalidTypeId )
{
NamedCreatorMap::const_iterator it = m.find( t );
if( it!=m.end() )
{
for( RegexAndCreatorVector::const_reverse_iterator nIt = it->second.rbegin(); nIt!=it->second.rend(); nIt++ )
{
if( boost::regex_match( plugPath, nIt->first ) )
{
return nIt->second( plug );
}
}
}
t = IECore::RunTimeTyped::baseTypeId( t );
}
}
CreatorMap &m = creators();
IECore::TypeId t = plug->typeId();
while( t!=IECore::InvalidTypeId )
{
CreatorMap::const_iterator it = m.find( t );
if( it!=m.end() )
{
return it->second( plug );
}
t = IECore::RunTimeTyped::baseTypeId( t );
}
return 0;
}