Equalizer.h

/* Equalizer.h */
/*
 * Copyright (C) 2011-2024 Michael Lugmair
 *
 * 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 SAYONARA_PLAYER_EQUALIZER_H
#define SAYONARA_PLAYER_EQUALIZER_H
 
#include "Utils/Pimpl.h"
 
#include <QObject>
#include <QList>
 
class SoundModifier;
class EqualizerSetting;
class QString;
class Equalizer :
    public QObject
{
    Q_OBJECT
    PIMPL(Equalizer)
 
    signals:
        void sigValueChanged(int band, int value);
 
    public:
        enum RenameError
        {
            NoError = 0,
            DbError,
            EmptyName,
            NameAlreadyKnown,
            InvalidIndex
        };
 
        Equalizer(SoundModifier* soundModifier, QObject* parent = nullptr);
        ~Equalizer() noexcept;
 
        const EqualizerSetting& equalizerSetting(int index) const;
        EqualizerSetting& equalizerSetting(int index);
        const EqualizerSetting& currentSetting() const;
 
        QStringList names() const;
        QStringList defaultNames() const;
 
        void changeValue(int index, int band, int value);
        void resetPreset(int presetIndex);
        RenameError renamePreset(int index, const QString& newName);
        bool deletePreset(int presetIndex);
        RenameError saveCurrentEqualizerAs(const QString& name);
 
        int currentIndex() const;
        void setCurrentIndex(int index);
 
        int count() const;
 
        void setGaussEnabled(bool enabled);
        bool isGaussEnabled() const;
 
        void startValueChange();
        void endValueChange();
};
 
#endif //SAYONARA_PLAYER_EQUALIZER_H