mainwidget.h Example File

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#ifndef MAINWIDGET_H #define MAINWIDGET_H #include <QAudio> #include <QIcon> #include <QWidget> class Engine; class FrequencySpectrum; class LevelMeter; class ProgressBar; class SettingsDialog; class Spectrograph; class ToneGeneratorDialog; class Waveform; class QAction; class QAudioFormat; class QLabel; class QMenu; class QPushButton; /** * Main application widget, responsible for connecting the various UI * elements to the Engine. */ class MainWidget : public QWidget { Q_OBJECT public: explicit MainWidget(QWidget *parent = 0); ~MainWidget(); // QObject void timerEvent(QTimerEvent *event) override; public slots: void stateChanged(QAudio::Mode mode, QAudio::State state); void formatChanged(const QAudioFormat &format); void spectrumChanged(qint64 position, qint64 length, const FrequencySpectrum &spectrum); void infoMessage(const QString &message, int timeoutMs); void errorMessage(const QString &heading, const QString &detail); void audioPositionChanged(qint64 position); void bufferLengthChanged(qint64 length); private slots: void showFileDialog(); void showSettingsDialog(); void showToneGeneratorDialog(); void initializeRecord(); void updateModeMenu(); void updateButtonStates(); private: void createUi(); void createMenus(); void connectUi(); void reset(); enum Mode { NoMode, RecordMode, GenerateToneMode, LoadFileMode }; void setMode(Mode mode); private: Mode m_mode; Engine* m_engine; #ifndef DISABLE_WAVEFORM Waveform* m_waveform; #endif ProgressBar* m_progressBar; Spectrograph* m_spectrograph; LevelMeter* m_levelMeter; QPushButton* m_modeButton; QPushButton* m_recordButton; QIcon m_recordIcon; QPushButton* m_pauseButton; QIcon m_pauseIcon; QPushButton* m_playButton; QIcon m_playIcon; QPushButton* m_settingsButton; QIcon m_settingsIcon; QLabel* m_infoMessage; int m_infoMessageTimerId; SettingsDialog* m_settingsDialog; ToneGeneratorDialog* m_toneGeneratorDialog; QMenu* m_modeMenu; QAction* m_loadFileAction; QAction* m_generateToneAction; QAction* m_recordAction; }; #endif // MAINWIDGET_H

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