Qt Reference Documentation

# settingsdialog.h Example File

demos/spectrum/app/settingsdialog.h

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     #ifndef SETTINGSDIALOG_H
     #define SETTINGSDIALOG_H

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

     QT_FORWARD_DECLARE_CLASS(QComboBox)
     QT_FORWARD_DECLARE_CLASS(QCheckBox)
     QT_FORWARD_DECLARE_CLASS(QSlider)
     QT_FORWARD_DECLARE_CLASS(QSpinBox)
     QT_FORWARD_DECLARE_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