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/* -*- c++ -*- */
/*
* Copyright 2011 Alexandru Csete OZ9AEC.
*
* Gqrx 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, or (at your option)
* any later version.
*
* Gqrx 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 Gqrx; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifndef DOCKAUDIO_H
#define DOCKAUDIO_H

#include <QDockWidget>

namespace Ui {
    class DockAudio;
}


/*! \brief Dock window with audio options.
* \ingroup UI
*
* This dock widget encapsulates the audio options.
* The UI itself is in the dockaudio.ui file.
*
* This class also provides the signal/slot API necessary to connect
* the encapsulated widgets to the rest of the application.
*/
class DockAudio : public QDockWidget
{
    Q_OBJECT

public:
    explicit DockAudio(QWidget *parent = 0);
    ~DockAudio();

    void setFftRange(quint64 minf, quint64 maxf);
    void setNewFttData(double *fftData, int size);
    int fftRate() { return 10; }

    void setAudioGain(int gain);
    int audioGain();

    void setAudioRecButtonState(bool checked);
    void setAudioPlayButtonState(bool checked);


signals:
    /*! \brief Signal emitted when audio gain has changed. Gain is in dB. */
    void audioGainChanged(float gain);

    /*! \brief Signal emitted when audio recording is started. */
    void audioRecStarted(const QString filename);

    /*! \brief Signal emitted when audio recording is stopped. */
    void audioRecStopped();

    /*! \brief Signal emitted when audio playback is started. */
    void audioPlayStarted(const QString filename);

    /*! \brief Signal emitted when audio playback is stopped. */
    void audioPlayStopped();

    /*! \brief FFT rate changed. */
    void fftRateChanged(int fps);

private slots:
    void on_audioGainSlider_valueChanged(int value);
    void on_audioRecButton_clicked(bool checked);
    void on_audioPlayButton_clicked(bool checked);


private:
    Ui::DockAudio *ui;
    QString lastAudio; /*! Last audio recording. */
    bool autoSpan; /*! Whether to allow mode-dependent auto span. */
};

#endif // DOCKAUDIO_H
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