JIRA TANGODEVIC-774

src/CslHexapodApi/Observer.cpp

+#include "Observer.h"
+
+namespace CslHexapodApi
+{
+
+  Observer::~Observer ()
+  {
+    //pour chaque objet observ, 
+    //on lui dit qu'on doit supprimer l'Observer courant
+    const_iterator ite = m_list.end();
+
+    for(iterator itb = m_list.begin(); itb!=ite; ++itb)
+    {
+      (*itb)->DelObs (this);
+    }
+  }
+
+  void Observer::AddObs (Observable * obs)
+  {
+    m_list.push_back (obs);
+  }
+
+  void Observer::DelObs(Observable * obs)
+  {
+    //on enlve l'objet observ.
+    iterator it = std::find (m_list.begin(), m_list.end(), obs);
+    if (it != m_list.end ())
+      m_list.erase (it);
+  }
+
+  void Observable::AddObs (Observer * obs)
+  {
+    //on ajoute l'Observer  notre liste 
+    m_list.push_back (obs);
+
+    //et on lui donne un nouvel objet observ.
+    obs->AddObs (this);
+  }
+
+  void Observable::DelObs (Observer * obs)
+  {
+    //mme chose que dans Observer::DelObs
+    iterator it = find(m_list.begin(), m_list.end(), obs);
+    if(it != m_list.end ())
+      m_list.erase (it);
+  }
+
+  void Observable::Notify (void)
+  {
+    //on prvient chaque Observer que l'on change de valeur
+    iterator itb = m_list.begin ();
+    const_iterator ite = m_list.end ();
+   
+   for(; itb != ite ; ++itb)
+   {
+     (*itb)->Update ();
+   }
+  }
+
+  Observable::~Observable ()
+  {
+    //mme chose qu'avec Observer::~Observer
+    std::cout << "Observable::~Observable () <-" << std::endl;
+    iterator itb = m_list.begin ();
+    const_iterator ite = m_list.end ();
+
+    for(; itb != ite ; ++itb)
+    {
+      (*itb)->DelObs (this);
+    }
+  }
+} //- namespace

src/CslHexapodApi/Observer.h

+
+#ifndef __OBSERVER_H
+#define __OBSERVER_H
+
+#include <iostream>
+#include <list>
+#include <iterator>
+#include <algorithm>
+#include <string>
+
+
+namespace CslHexapodApi
+{
+typedef double Info;
+
+class Observable;
+//*******************************************************************
+//
+//		Class Observer : Read Pattern Description 
+//
+//	http://en.wikipedia.org/wiki/Observer_pattern
+//
+//*******************************************************************
+
+class Observer
+{
+protected:
+  //- ce n'est pas necessaire  pour nous
+  std::list<Observable*> m_list;
+  typedef std::list<Observable*>::iterator iterator; 
+  typedef std::list<Observable*>::const_iterator const_iterator;
+  virtual ~Observer() = 0;
+public:
+  Observer ()
+  {
+  };
+  virtual void Update() = 0;
+  void AddObs(Observable* obs);
+  void DelObs(Observable* obs);
+};
+//*******************************************************************
+//
+//		Class Observable : Read Pattern Description 
+//
+//	http://en.wikipedia.org/wiki/Observer_pattern
+//
+//*******************************************************************
+
+class Observable
+{
+  std::list<Observer*> m_list;
+  typedef std::list<Observer*>::iterator iterator; 
+  typedef std::list<Observer*>::const_iterator const_iterator;
+
+public:
+  Observable ()
+  {
+  };
+   void AddObs (Observer* obs);
+   void DelObs (Observer* obs);
+   virtual ~Observable();
+protected:
+   void Notify (void);
+private : 
+
+};
+
+} //- namespace
+
+
+#endif //- __OBSERVER_H
+
+