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/***************************************************************************
copyright : (C) 2004 by Scott Wheeler
email : wheeler@kde.org
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#include "playlistinterface.h"
////////////////////////////////////////////////////////////////////////////////
// Watched implementation
////////////////////////////////////////////////////////////////////////////////
void Watched::currentChanged()
{
for(QValueList<PlaylistObserver *>::ConstIterator it = m_observers.begin();
it != m_observers.end();
++it)
{
(*it)->updateCurrent();
}
}
void Watched::dataChanged()
{
for(QValueList<PlaylistObserver *>::ConstIterator it = m_observers.begin();
it != m_observers.end();
++it)
{
(*it)->updateData();
}
}
void Watched::addObserver(PlaylistObserver *observer)
{
m_observers.append(observer);
}
void Watched::removeObserver(PlaylistObserver *observer)
{
m_observers.remove(observer);
}
Watched::~Watched()
{
for(QValueList<PlaylistObserver *>::Iterator it = m_observers.begin();
it != m_observers.end();
++it)
{
(*it)->clearWatched();
}
}
////////////////////////////////////////////////////////////////////////////////
// PlaylistObserver implementation
////////////////////////////////////////////////////////////////////////////////
PlaylistObserver::~PlaylistObserver()
{
if(m_playlist)
m_playlist->removeObserver(this);
}
PlaylistObserver::PlaylistObserver(PlaylistInterface *playlist) :
m_playlist(playlist)
{
playlist->addObserver(this);
}
const PlaylistInterface *PlaylistObserver::playlist() const
{
return m_playlist;
}
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