ILabelModelSourceObserver.h

// Copyright eeGeo Ltd (2012-2014), All Rights Reserved

#pragma once


#include "LabelModelRepository.h"
#include "ICallback.h"

namespace Eegeo
{
    namespace Labels
    {
        class ILabelModelSourceObserver : public ILabelModelRepository::ObserverType
        {
        public:
            typedef Helpers::ICallback1<const IAnchoredLabel> CallbackType;
            
            virtual ~ILabelModelSourceObserver() {;}
            
            virtual void RegisterLabelModelAddedCallback(CallbackType& callback) = 0;
            
            virtual void RegisterLabelModelRemovedCallback(CallbackType& callback) = 0;
            
            virtual void UnregisterLabelModelAddedCallback(CallbackType& callback) = 0;
            
            virtual void UnregisterLabelModelRemovedCallback(CallbackType& callback) = 0;
        };
        
    }
}