- Qt 5.3
- Qt Multimedia
- Spectrum Example
- tonegeneratordialog.h Example File
- Qt 5.3.2 Reference Documentation

# tonegeneratordialog.h Example File

spectrum/app/tonegeneratordialog.h

    /****************************************************************************
    **
    ** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
    ** Contact: http://www.qt-project.org/legal
    **
    ** This file is part of the examples of the Qt Toolkit.
    **
    ** $QT_BEGIN_LICENSE:BSD$
    ** You may use this file under the terms of the BSD license as follows:
    **
    ** "Redistribution and use in source and binary forms, with or without
    ** modification, are permitted provided that the following conditions are
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    **     the documentation and/or other materials provided with the
    **     distribution.
    **   * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
    **     of its contributors may be used to endorse or promote products derived
    **     from this software without specific prior written permission.
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    #ifndef TONEGENERATORDIALOG_H
    #define TONEGENERATORDIALOG_H

    #include "spectrum.h"
    #include <QAudioDeviceInfo>
    #include <QDialog>

    class QCheckBox;
    class QSlider;
    class QSpinBox;
    class QGridLayout;

    /**
     * Dialog which controls the parameters of the tone generator.
     */
    class ToneGeneratorDialog : public QDialog
    {
        Q_OBJECT

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

        bool isFrequencySweepEnabled() const;
        qreal frequency() const;
        qreal amplitude() const;

    private slots:
        void frequencySweepEnabled(bool enabled);

    private:
        QCheckBox *m_toneGeneratorSweepCheckBox;
        bool m_frequencySweepEnabled;
        QWidget *m_toneGeneratorControl;
        QWidget *m_toneGeneratorFrequencyControl;
        QSlider *m_frequencySlider;
        QSpinBox *m_frequencySpinBox;
        qreal m_frequency;
        QSlider *m_amplitudeSlider;
    };

    #endif // TONEGENERATORDIALOG_H