metadatamanager.h

/***************************************************************************
 *   Copyright (C) 2009-2019 by Ilya Kotov                                 *
 *   forkotov02@ya.ru                                                      *
 *                                                                         *
 *   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.,                                       *
 *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.         *
 ***************************************************************************/
 
#ifndef METADATAMANAGER_H
#define METADATAMANAGER_H
 
#include <QList>
#include <QStringList>
#include <QPixmap>
#include <QDir>
#include <QMutex>
#include "trackinfo.h"
#include "metadatamodel.h"
 
class DecoderFactory;
class EngineFactory;
class InputSourceFactory;
class QmmpSettings;
 
 
class QMMP_EXPORT MetaDataManager
{
public:
    MetaDataManager();
    ~MetaDataManager();
    QList <TrackInfo *> createPlayList(const QString &path, TrackInfo::Parts parts = TrackInfo::AllParts, QStringList *ignoredPaths = 0) const;
    MetaDataModel* createMetaDataModel(const QString &url, bool readOnly) const;
    QStringList filters() const;
    QStringList nameFilters() const;
    QStringList protocols() const;
    bool supports(const QString &file) const;
    QPixmap getCover(const QString &url) const;
    QString getCoverPath(const QString &url) const;
    QString findCoverFile(const QString &fileName) const;
    void clearCoverCache();
    void prepareForAnotherThread();
    static MetaDataManager* instance();
    static void destroy();
 
private:
    struct CoverCacheItem
    {
        QString url;
        QString coverPath;
        QPixmap coverPixmap;
    };
 
    QFileInfoList findCoverFiles(QDir dir, int depth) const;
    CoverCacheItem *createCoverCacheItem(const QString &url) const;
    mutable QList <CoverCacheItem *> m_cover_cache;
    QmmpSettings *m_settings;
    mutable QMutex m_mutex;
 
    static MetaDataManager* m_instance;
};
 
#endif // METADATAMANAGER_H