settingsdialog.h Example File

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  #ifndef SETTINGSDIALOG_H
  #define SETTINGSDIALOG_H

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

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

  /**
   * Dialog used to control settings such as the audio input / output device
   * and the windowing function.
   */
  class SettingsDialog : public QDialog
  {
      Q_OBJECT

  public:
      SettingsDialog(const QList<QAudioDeviceInfo> &availableInputDevices,
                     const QList<QAudioDeviceInfo> &availableOutputDevices,
                     QWidget *parent = 0);
      ~SettingsDialog();

      WindowFunction windowFunction() const { return m_windowFunction; }
      const QAudioDeviceInfo &inputDevice() const { return m_inputDevice; }
      const QAudioDeviceInfo &outputDevice() const { return m_outputDevice; }

  private slots:
      void windowFunctionChanged(int index);
      void inputDeviceChanged(int index);
      void outputDeviceChanged(int index);

  private:
      WindowFunction   m_windowFunction;
      QAudioDeviceInfo m_inputDevice;
      QAudioDeviceInfo m_outputDevice;

      QComboBox *m_inputDeviceComboBox;
      QComboBox *m_outputDeviceComboBox;
      QComboBox *m_windowFunctionComboBox;
  };

  #endif // SETTINGSDIALOG_H