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// Copyright (c) 2002 - 2005 Henrik Kinnunen (fluxgen at fluxbox dot org)
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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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// 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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// 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.cc 3864 2005-01-24 18:02:34Z mathias $
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#include "Observer.hh"
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Subject::SubjectList Subject::s_subjectlist;
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Subject::Subject():m_notify_mode(false) {
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s_subjectlist.push_back(this);
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s_subjectlist.erase(std::remove(s_subjectlist.begin(),
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s_subjectlist.end(), this));
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void Subject::attach(Observer *obj) {
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m_observerlist.push_back(obj);
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// no need to have more than one instance of an observer
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m_observerlist.erase(std::unique(m_observerlist.begin(), m_observerlist.end()),
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m_observerlist.end());
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void Subject::detach(Observer *obj) {
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m_dead_observers.push_back(obj);
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m_observerlist.erase(std::remove(m_observerlist.begin(),
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m_observerlist.end(), obj),
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m_observerlist.end());
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void Subject::notify() {
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std::for_each(m_observerlist.begin(), m_observerlist.end(),
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std::bind2nd(std::mem_fun(&Observer::update), this));
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m_notify_mode = false;
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// remove dead observers
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if (m_dead_observers.size()) {
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std::for_each(m_dead_observers.begin(),
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m_dead_observers.end(),
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std::bind1st(std::mem_fun(&Subject::detach), this));
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m_dead_observers.clear();
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void Subject::removeObserver(Observer *obj) {
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std::for_each(s_subjectlist.begin(), s_subjectlist.end(),
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std::bind2nd(std::mem_fun(&Subject::detach), obj));
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}; // end namespace FbTk
added
removed
src/FbTk/Subject.cc
