refobserver.h

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/* This software and supporting documentation are distributed by
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#ifndef ANATOMIST_REFERENCE_REFOBSERVER_H
#define ANATOMIST_REFERENCE_REFOBSERVER_H
 
#include <anatomist/observer/Observer.h>
 
 
namespace anatomist
{
  class Referential;
 
 
  class Referentiable
  {
  public:
    Referentiable( Referential* r );
    virtual ~Referentiable();
 
    const Referential* referential() const;
    Referential* referential();
 
  private:
    Referential      *_ref;
  };
 
 
  class ReferentialObserver: public Observer
  {
  public:
    ReferentialObserver( const Referential* observerRef, Observer* notify );
    virtual ~ReferentialObserver();
 
    void listenReferentiable( const Referentiable* o );
    void unregisterReferentiable( const Referentiable* o );
    void changeObserverReferential( const Referential* ref );
 
    virtual void update( const Observable* obs, void* arg );
 
  private:
    struct Private;
    Private     *d;
  };
 
 
  inline const Referential* Referentiable::referential() const
  {
    return _ref;
  }
 
 
  inline Referential* Referentiable::referential()
  {
    return _ref;
  }
 
}
 
#endif