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/**
* Copyright (C) 2004 Scott Wheeler <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.
*
* This program is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "playlistinterface.h"
////////////////////////////////////////////////////////////////////////////////
// Watched implementation
////////////////////////////////////////////////////////////////////////////////
void Watched::currentChanged()
{
foreach(PlaylistObserver *observer, m_observers)
observer->updateCurrent();
}
void Watched::dataChanged()
{
foreach(PlaylistObserver *observer, m_observers)
observer->updateData();
}
void Watched::addObserver(PlaylistObserver *observer)
{
m_observers.append(observer);
}
void Watched::removeObserver(PlaylistObserver *observer)
{
if(observer)
observer->clearWatched();
m_observers.removeAll(observer);
}
void Watched::clearObservers()
{
foreach(PlaylistObserver *observer, m_observers)
observer->clearWatched();
m_observers.clear();
}
Watched::~Watched()
{
clearObservers();
}
////////////////////////////////////////////////////////////////////////////////
// PlaylistObserver implementation
////////////////////////////////////////////////////////////////////////////////
PlaylistObserver::~PlaylistObserver()
{
if(m_playlist)
m_playlist->removeObserver(this);
}
PlaylistObserver::PlaylistObserver(PlaylistInterface *playlist) :
m_playlist(playlist)
{
if(m_playlist)
playlist->addObserver(this);
}
const PlaylistInterface *PlaylistObserver::playlist() const
{
return m_playlist;
}
// vim: set et sw=4 tw=0 sta:
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