EngineHandler.h

/* EngineHandler.h */
 
/* Copyright (C) 2011-2024 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 ENGINEHANDLER_H_
#define ENGINEHANDLER_H_
 
#include "Utils/Pimpl.h"
 
#include "Interfaces/CoverDataProvider.h"
#include "Interfaces/AudioDataProvider.h"
#include "Interfaces/Engine/SoundModifier.h"
 
#include <QObject>
 
#define EngineHandler_change_track_md static_cast<void (EngineHandler::*) (const MetaData& md)>(&EngineHandler::change_track)
 
class PlayManager;
 
namespace Tagging
{
    class TagWriter;
}
 
namespace Util
{
    class FileSystem;
}
 
namespace Engine
{
    class PipelineFactory;
    class Handler :
        public QObject,
        public CoverDataProvider,
        public LevelDataProvider,
        public SpectrumDataProvider,
        public RawAudioDataProvider,
        public SoundModifier
    {
        Q_OBJECT
        PIMPL(Handler)
 
        public:
            Handler(const std::shared_ptr<Util::FileSystem>& track,
                    const std::shared_ptr<Tagging::TagWriter>& tagWriter,
                    const std::shared_ptr<PipelineFactory>& pipelineFactory,
                    PlayManager* playManager);
            ~Handler() override;
 
            [[nodiscard]] bool isValid() const;
 
            void registerLevelReceiver(LevelDataReceiver* receiver) override;
            void unregisterLevelReceiver(LevelDataReceiver* levelReceiver) override;
            void levelActiveChanged(bool b) override;
 
            void registerSpectrumReceiver(SpectrumDataReceiver* receiver) override;
            void unregisterSpectrumReceiver(SpectrumDataReceiver* spectrumReceiver) override;
            void spectrumActiveChanged(bool b) override;
 
            void registerCoverReceiver(CoverDataReceiver* coverReceiver) override;
            void unregisterCoverReceiver(CoverDataReceiver* coverReceiver) override;
 
            void registerAudioDataReceiver(RawAudioDataReceiver* receiver) override;
            void unregisterAudioDataReceiver(RawAudioDataReceiver* receiver) override;
 
            void setEqualizer(int band, int value) override;
 
        private slots:
            void playstateChanged(PlayState state);
 
            void spectrumChanged();
            void levelChanged();
 
        private: // NOLINT(readability-redundant-access-specifiers)
            void reloadReceivers();
            void setAudioData(const QByteArray& data) override;
            void setLevelData(float left, float right) override;
            void setSpectrumData(const std::vector<float>& spectrum) override;
            void setCoverData(const QByteArray& imageData, const QString& mimeData) override;
    };
}
 
#endif