BandPassPlugin.h

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/***************************************************************************
        BandPassPlugin.h  -  Plugin for band pass filtering
                             -------------------
    begin                : Thu Jun 19 2003
    copyright            : (C) 2003 by Dave Flogeras
    email                : d.flogeras@unb.ca
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   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.                                   *
 *                                                                         *
 ***************************************************************************/

#ifndef BAND_PASS_PLUGIN_H
#define BAND_PASS_PLUGIN_H

#include "config.h"

#include <QObject>
#include <QString>
#include <QStringList>

#include "libkwave/Plugin.h"
#include "libkwave/PluginSetupDialog.h"

#include "libgui/FilterPlugin.h"

namespace Kwave
{
    class KwaveSampleSource;

    class BandPassPlugin: public Kwave::FilterPlugin
    {
        Q_OBJECT

    public:

        BandPassPlugin(QObject *parent, const QVariantList &args);

        virtual ~BandPassPlugin() Q_DECL_OVERRIDE;

        virtual Kwave::PluginSetupDialog *createDialog(QWidget *parent)
            Q_DECL_OVERRIDE;

        virtual Kwave::SampleSource *createFilter(unsigned int tracks)
            Q_DECL_OVERRIDE;

        virtual bool paramsChanged() Q_DECL_OVERRIDE;

        virtual void updateFilter(Kwave::SampleSource *filter,
                                  bool force = false) Q_DECL_OVERRIDE;

        virtual QString actionName() Q_DECL_OVERRIDE;

    protected:

        virtual int interpreteParameters(QStringList &params) Q_DECL_OVERRIDE;

    protected slots:

        void setFreqValue(double frequency);

        void setBwValue(double bw);

    private:

        double m_frequency;

        double m_last_freq;

        double m_bw;

        double m_last_bw;

    };
}

#endif /* BAND_PASS_PLUGIN_H */

//***************************************************************************
//***************************************************************************