#include "Layer.hh"

StackFactory * StackFactory::_instance = NULL;
StackFactory * StackFactory::getInstance(){
  return _instance ? _instance : _instance=new StackFactory();
}

void StackFactory::registerLayerFactory(const std::string & type, LayerFactory * f)
{
  _fs[type] = f;
}

Layer* StackFactory::createLayerStack(const char* str)
{
  std::string type;
  std::string param;
  // parse str
  LayerFactory * f = _fs[type];
  if(f){
    return f->createLayer(type, param);
  }
  return NULL;
}