// Copyright (C) 2010, Guy Barrand. All rights reserved.
// See the file tools.license for terms.

#ifndef tools_sg_nodekit
#define tools_sg_nodekit

#include "pick_action"
#include "group"

namespace tools {
namespace sg {

inline void nodekit_pick(pick_action& a_action,node& a_sg,node* a_node) {
  if(a_action.stop_at_first()){
    a_sg.pick(a_action);
    if(a_action.done()) {
      a_action.set_node(a_node);
      a_action.save_state(a_action.state());
    }
  } else {
    // have a local pick_action to override node in the found pick list.
    pick_action action(a_action);
    a_sg.pick(action);
    typedef pick_action::pick_t pick_t;
    const std::vector<pick_t>& pks = action.picks();
    std::vector<pick_t>::const_iterator it;
    for(it=pks.begin();it!=pks.end();++it) {
      a_action.add_pick(*a_node,(*it).zs(),(*it).ws(),(*it).state());
    }
  }
}

}}

#include "render_action"
#include "bbox_action"

namespace tools {
namespace sg {

class nodekit : public node {
  TOOLS_HEADER(nodekit,tools::sg::nodekit,node)
public:
  virtual void update_sg(std::ostream&) = 0;
public:
  virtual void render(render_action& a_action) {
    update_if_touched(a_action.out());
    m_group.render(a_action);
  }
  virtual void search(search_action& a_action) {
    update_if_touched(a_action.out());
    parent::search(a_action);
    if(a_action.done()) return;
    m_group.search(a_action);
  }
  virtual void bbox(bbox_action& a_action) {
    update_if_touched(a_action.out());
    m_group.bbox(a_action);
  }

public:
  nodekit()
  :parent()
  {}
  virtual ~nodekit(){}
public:
  nodekit(const nodekit& a_from)
  :parent(a_from)
  {}
  nodekit& operator=(const nodekit& a_from){
    parent::operator=(a_from);
    return *this;
  }
protected:
  void update_if_touched(std::ostream& a_out) {
    if(touched()) {
      update_sg(a_out);
      reset_touched();
    }
  }
protected:
  group m_group;
};

}}

#endif