MetaDataInfo.h

/* MetaDataInfo.h */
 
/* Copyright (C) 2011-2020 Michael Lugmair (Lucio Carreras)
 *
 * This file is part of sayonara player
 *
 * 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 3 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/>.
 */
 
#ifndef METADATAINFO_H
#define METADATAINFO_H
 
#include "Utils/Pimpl.h"
#include "Components/Covers/CoverLocation.h"
 
#include <QObject>
#include <QMap>
#include <QList>
 
class Genre;
class LibraryDatabase;
 
enum class InfoStrings : uint8_t
{
        nTracks = 0,        // set by MetaDataInfo
        nAlbums,        // set by ArtistInfo, AlbumInfo
        nArtists,        // set by ArtistInfo, AlbumInfo
        CreateDate,        // set by MetaDataInfo
        ModifyDate,        // set by MetaDataInfo
        Filesize,        // set by MetaDataInfo
        PlayingTime,    // set by MetaDataInfo
        Year,            // set by MetaDataInfo
        Sampler,        // set by AlbumInfo
        Bitrate,        // set by MetaDataInfo
        Genre,            // set by MetaDataInfo
        Filetype,        // set by MetaDataInfo
        Comment            // set by MetaDataInfo
};
 
class MetaDataInfo :
    public QObject
{
    PIMPL(MetaDataInfo)
 
    protected:
        QString mHeader;
        QString mSubheader;
        QMap<InfoStrings, QString> mInfo;
        QList<StringPair> mAdditionalInfo;
 
        QString calcTracknumString(TrackNum tracknum);
        QString calcArtistString() const;
        QString calcAlbumString();
 
        virtual void calcCoverLocation();
        virtual void calcSubheader();
        virtual void calcHeader();
 
        void insertPlayingTime(MilliSeconds ms);
        void insertGenre(const Util::Set<Genre>& genres);
        void insertFilesize(uint64_t filesize);
        void insertFiletype(const Util::Set<QString>& filetypes);
        void insertComment(const Util::Set<QString>& comments);
        void insertCreatedates(uint64_t minDate, uint64_t maxDate);
        void insertModifydates(uint64_t minDate, uint64_t maxDate);
 
        void insertIntervalInfoField(InfoStrings key, int min, int max);
        void insertNumericInfoField(InfoStrings key, int number);
 
    public:
        explicit MetaDataInfo(const MetaDataList& tracks);
        virtual ~MetaDataInfo();
 
        virtual QString header() const;
        virtual QString subheader() const;
        virtual QString infostring() const;
        virtual QList<StringPair> infostringMap() const;
 
        virtual Cover::Location coverLocation() const;
 
        const Util::Set<QString>& albums() const;
        const Util::Set<QString>& artists() const;
        const Util::Set<QString>& albumArtists() const;
 
        const Util::Set<AlbumId>& albumIds() const;
        const Util::Set<ArtistId>& artistIds() const;
        const Util::Set<ArtistId>& albumArtistIds() const;
 
        QStringList paths() const;
 
    private:
        void calcCoverLocation(const MetaDataList& tracks);
        void calcSubheader(quint16 tracknum);
        void calcHeader(const MetaDataList& tracks);
 
        QString getInfoString(InfoStrings idx) const;
};
 
#endif // METADATAINFO_H