76     ,   m_engine(new Engine(this))  in MainWidget()
91             m_engine->availableAudioInputDevices(),  in MainWidget()
92             m_engine->availableAudioOutputDevices(),  in MainWidget()
202         m_engine->loadFile(fileNames.front());  in showFileDialog()
213         m_engine->setAudioInputDevice(m_settingsDialog->inputDevice());  in showSettingsDialog()
214         m_engine->setAudioOutputDevice(m_settingsDialog->outputDevice());  in showSettingsDialog()
215         m_engine->setWindowFunction(m_settingsDialog->windowFunction());  in showSettingsDialog()
227             m_engine->generateSweptTone(amplitude);  in showToneGeneratorDialog()
231             m_engine->generateTone(tone);  in showToneGeneratorDialog()
243     if (m_engine->initializeRecord())  in initializeRecord()
343             m_engine, &Engine::startRecording);  in connectUi()
346             m_engine, &Engine::suspend);  in connectUi()
349             m_engine, &Engine::startPlayback);  in connectUi()
354     connect(m_engine, &Engine::stateChanged,  in connectUi()
357     connect(m_engine, &Engine::formatChanged,  in connectUi()
360     m_progressBar->bufferLengthChanged(m_engine->bufferLength());  in connectUi()
362     connect(m_engine, &Engine::bufferLengthChanged,  in connectUi()
365     connect(m_engine, &Engine::dataLengthChanged,  in connectUi()
368     connect(m_engine, &Engine::recordPositionChanged,  in connectUi()
371     connect(m_engine, &Engine::playPositionChanged,  in connectUi()
374     connect(m_engine, &Engine::recordPositionChanged,  in connectUi()
377     connect(m_engine, &Engine::playPositionChanged,  in connectUi()
380     connect(m_engine, &Engine::levelChanged,  in connectUi()
383 …connect(m_engine, QOverload<qint64, qint64, const FrequencySpectrum&>::of(&Engine::spectrumChanged…  in connectUi()
386     connect(m_engine, &Engine::infoMessage,  in connectUi()
389     connect(m_engine, &Engine::errorMessage,  in connectUi()
396     connect(m_engine, &Engine::bufferChanged,  in connectUi()
420     const bool recordEnabled = ((QAudio::AudioOutput == m_engine->mode() ||  in updateButtonStates()
421                                 (QAudio::ActiveState != m_engine->state() &&  in updateButtonStates()
422                                  QAudio::IdleState != m_engine->state())) &&  in updateButtonStates()
426     const bool pauseEnabled = (QAudio::ActiveState == m_engine->state() ||  in updateButtonStates()
427                                QAudio::IdleState == m_engine->state());  in updateButtonStates()
431                               (QAudio::AudioOutput != m_engine->mode() ||  in updateButtonStates()
432                                (QAudio::ActiveState != m_engine->state() &&  in updateButtonStates()
433                                 QAudio::IdleState != m_engine->state() &&  in updateButtonStates()
434                                 QAudio::InterruptedState != m_engine->state())));  in updateButtonStates()
443     m_engine->reset();  in reset()