mirror of
https://github.com/nzbget/nzbget.git
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52 lines
1.3 KiB
C++
52 lines
1.3 KiB
C++
/*
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* This file if part of nzbget
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*
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* Copyright (C) 2004 Sven Henkel <sidddy@users.sourceforge.net>
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* Copyright (C) 2007-2014 Andrey Prygunkov <hugbug@users.sourceforge.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* $Revision$
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* $Date$
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*
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*/
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#ifndef OBSERVER_H
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#define OBSERVER_H
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class Observer;
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class Subject
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{
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private:
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std::list<Observer*> m_observers;
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public:
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Subject();
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void Attach(Observer* observer);
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void Detach(Observer* observer);
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void Notify(void* aspect);
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};
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class Observer
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{
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protected:
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virtual void Update(Subject* caller, void* aspect) = 0;
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friend class Subject;
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};
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#endif
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