54 lines
1.8 KiB
C++
54 lines
1.8 KiB
C++
// Subject.hh for FbTk
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// Copyright (c) 2002 Henrik Kinnunen (fluxgen@fluxbox.org)
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the "Software"),
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// to deal in the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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// $Id: Subject.hh,v 1.1 2003/02/15 01:21:40 fluxgen Exp $
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#ifndef FBTK_SUBJECT_HH
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#define FBTK_SUBJECT_HH
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#include <list>
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namespace FbTk {
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class Observer;
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class Subject {
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public:
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Subject();
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virtual ~Subject();
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/// attach an observer
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void attach(Observer *obs);
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/// detach an observer
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void detach(Observer *obs);
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/// notify all attached observers
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void notify();
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static void removeObserver(Observer *obs);
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private:
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typedef std::list<Observer *> ObserverList;
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ObserverList m_observerlist;
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typedef std::list<Subject *> SubjectList;
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static SubjectList s_subjectlist;
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};
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}; // end namespace FbTk
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#endif // FBTK_SUBJECT_HH
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