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// Subject.hh for FbTk
// Copyright (c) 2002-2003 Henrik Kinnunen (fluxgen at fluxbox dot org)
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
#ifndef FBTK_SUBJECT_HH
#define FBTK_SUBJECT_HH
#include "NotCopyable.hh"
#include <list>
namespace FbTk {
class Observer;
class Subject:private FbTk::NotCopyable {
public:
Subject();
virtual ~Subject();
/// attach an observer
void attach(Observer *obs);
/// detach an observer
void detach(Observer *obs);
/// notify all attached observers
void notify();
static void removeObserver(Observer *obs);
private:
bool m_notify_mode;
typedef std::list<Observer *> ObserverList;
ObserverList m_observerlist;
ObserverList m_dead_observers;
typedef std::list<Subject *> SubjectList;
static SubjectList s_subjectlist;
};
} // end namespace FbTk
#endif // FBTK_SUBJECT_HH
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