tonegeneratordialog.h Example File

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 #ifndef TONEGENERATORDIALOG_H
 #define TONEGENERATORDIALOG_H

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

 QT_FORWARD_DECLARE_CLASS(QCheckBox)
 QT_FORWARD_DECLARE_CLASS(QSlider)
 QT_FORWARD_DECLARE_CLASS(QSpinBox)
 QT_FORWARD_DECLARE_CLASS(QGridLayout)

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