qmmarkmanager.cpp

可以播放MP3,wma等文件格式的播放器

/* qmmarkmanager.cpp
 *
 * $Id: qmmarkmanager.cpp,v 1.9 2002/03/07 03:44:16 mariuss Exp $
 *
 * Apollo sound player: http://www.apolloplayer.org
 * Copyright(C) 2000-2002 Apollo Team.  See CREDITS file.
 *
 * 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, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * The GNU General Public License is also available online at:
 *
 * http://www.gnu.org/copyleft/gpl.html
 */

#include "qmmarkmanager.h"

#include <qdir.h>
#include <qfile.h>

QmAutoPtr<QmMarkManager> QmMarkManager::s_Instance;

/**
 * @file qmmarkmanager.cpp
 * @brief Mark songs that mpg123 can't handle as bad
 */

/*!
  \class QmMarkManager qmmarkmanager.h
  \brief Class for managing song marks.

  This class is responsible for managing song marks.  Currently,
  a song can only be marked as bad.
*/


/*! \fn	void QmMarkManager::songInserted()
  Emitted whenever a song is inserted.
*/

/*! \fn void QmMarkManager::songRemoved()
  Emitted whenever a song is removed.
*/

/*!
  Loads the bad song list from disk.
*/

QmMarkManager::QmMarkManager()
{
	load();
}


/*!
  Saves the bad song list to disk.
*/

QmMarkManager::~QmMarkManager()
{
	save();
}


/*!
  \return The instance of the manager.
 */

QmMarkManager*
QmMarkManager::instance()
{
    if ( QmMarkManager::s_Instance.get() == 0 )
        s_Instance.reset( new QmMarkManager() );
	
    return (QmMarkManager *)QmMarkManager::s_Instance.get();
}


/*!
  Adds \a song if it does not already exist.  If the song was added,
  changed() will be emitted.
*/

void
QmMarkManager::insert(
	const QString &song)
{
	if(m_BadList.find(song) == m_BadList.end())
	{
		m_BadList.append(song);
		emit songInserted();
	}
}


/*!
  Removes \a song.  It is safe to call this function even
  if \a song was not previously added.  The changed() signal
  will be emitted.
*/

void
QmMarkManager::remove(
	const QString &song)
{
	m_BadList.remove(song);
//	emit changed(); // mainwindow->markmanager::remove()->markmanager::load() ... not good
	emit songRemoved();
}


/*!
  \return True if \a song is marked as bad, false otherwise.
 */

bool
QmMarkManager::isBad(
	const QString &song) const
{
	if(m_BadList.find(song) == m_BadList.end())
		return false;
	else
		return true;
}


/*!
  \return The list of bad songs (full paths).
 */

const QStringList&
QmMarkManager::badList() const
{
	return m_BadList;
}


/*!
  Loads the bad song list from disk.

  \warning This will erase the current set of bad songs.
*/

void
QmMarkManager::load()
{
	QString badlist = QDir::homeDirPath() + "/.apollo/badlist";
	QFile f(badlist);
	
	if(f.open( IO_ReadOnly ))
	{
		QDataStream str( &f );
		str >> m_BadList;
	}
}


/*!
  Saves the bad song list to disk.
*/

void
QmMarkManager::save()
{
	QString badlist = QDir::homeDirPath() + "/.apollo/badlist";
	QFile f(badlist);
	f.open( IO_WriteOnly );
	QDataStream str( &f );
	str << m_BadList;
}