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moved to FbTk

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fluxgen 2003-02-15 01:20:06 +00:00
parent e3b99d4e48
commit ab9cb939cf
4 changed files with 0 additions and 206 deletions
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33
src/Observer.cc
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// Observer.cc for FbTk
// Copyright (c) 2002 Henrik Kinnunen (fluxgen@fluxbox.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.
// $Id: Observer.cc,v 1.2 2002/12/01 13:41:58 rathnor Exp $
#include "Observer.hh"
#include "Subject.hh"
namespace FbTk {
Observer::~Observer() {
Subject::removeObserver(this); // make sure no subject has this observer attached
}
};

39
src/Observer.hh
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// Observer.hh for FbTk
// Copyright (c) 2002 Henrik Kinnunen (fluxgen@fluxbox.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.
// $Id: Observer.hh,v 1.2 2002/12/01 13:41:58 rathnor Exp $
#ifndef FBTK_OBSERVER_HH
#define FBTK_OBSERVER_HH
namespace FbTk {
class Subject;
class Observer {
public:
virtual ~Observer();
virtual void update(Subject *changedSubj) = 0;
};
}; // end namespace FBTK
#endif // FBTK_OBSERVER_HH

80
src/Subject.cc
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// Subject.cc for FbTk
// Copyright (c) 2002 Henrik Kinnunen (fluxgen@fluxbox.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.
// $Id: Subject.cc,v 1.2 2002/12/01 13:41:59 rathnor Exp $
#include "Subject.hh"
#include "Observer.hh"
#include <algorithm>
#include <functional>
namespace FbTk {
Subject::SubjectList Subject::s_subjectlist;
Subject::Subject() {
s_subjectlist.push_back(this);
}
Subject::~Subject() {
SubjectList::iterator it = s_subjectlist.begin();
SubjectList::iterator it_end = s_subjectlist.end();
for (; it != it_end; ++it) {
if (this == (*it)) {
s_subjectlist.erase(it);
break;
}
}
}
void Subject::attach(Observer *obj) {
m_observerlist.push_back(obj);
// no need to have more than one instance of an observer
std::unique(m_observerlist.begin(), m_observerlist.end());
}
void Subject::detach(Observer *obj) {
ObserverList::iterator it = m_observerlist.begin();
ObserverList::iterator it_end = m_observerlist.end();
for (; it != it_end; ++it) {
if (obj == (*it)) {
m_observerlist.erase(it);
break;
}
}
}
void Subject::notify() {
ObserverList::iterator it = m_observerlist.begin();
for (; it != m_observerlist.end(); ++it) {
(*it)->update(this);
}
}
void Subject::removeObserver(Observer *obj) {
SubjectList::iterator it = s_subjectlist.begin();
for(; it != s_subjectlist.end(); ++it) {
(*it)->detach(obj);
}
}
}; // end namespace FbTk

54
src/Subject.hh
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// Subject.hh for FbTk
// Copyright (c) 2002 Henrik Kinnunen (fluxgen@fluxbox.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.
// $Id: Subject.hh,v 1.2 2002/12/01 13:42:00 rathnor Exp $
#ifndef FBTK_SUBJECT_HH
#define FBTK_SUBJECT_HH
#include <vector>
namespace FbTk {
class Observer;
class Subject {
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:
typedef std::vector<Observer *> ObserverList;
ObserverList m_observerlist;
typedef std::vector<Subject *> SubjectList;
static SubjectList s_subjectlist;
};
}; // end namespace FbTk
#endif // FBTK_SUBJECT_HH