diff options
Diffstat (limited to 'examples/audiooutput/audiooutput.cpp')
| -rw-r--r-- | examples/audiooutput/audiooutput.cpp | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/examples/audiooutput/audiooutput.cpp b/examples/audiooutput/audiooutput.cpp index 68fbbcc..b8193fb 100644 --- a/examples/audiooutput/audiooutput.cpp +++ b/examples/audiooutput/audiooutput.cpp @@ -51,6 +51,7 @@ const QString AudioTest::PushModeLabel(tr("Enable push mode")); const QString AudioTest::PullModeLabel(tr("Enable pull mode")); const QString AudioTest::SuspendLabel(tr("Suspend playback")); const QString AudioTest::ResumeLabel(tr("Resume playback")); +const QString AudioTest::VolumeLabel(tr("Volume:")); const int DurationSeconds = 1; const int ToneFrequencyHz = 600; @@ -190,6 +191,18 @@ void AudioTest::initializeWindow() connect(m_suspendResumeButton, SIGNAL(clicked()), SLOT(toggleSuspendResume())); layout->addWidget(m_suspendResumeButton); + QHBoxLayout *volumeBox = new QHBoxLayout; + m_volumeLabel = new QLabel; + m_volumeLabel->setText(VolumeLabel); + m_volumeSlider = new QSlider(Qt::Horizontal); + m_volumeSlider->setMinimum(0); + m_volumeSlider->setMaximum(100); + m_volumeSlider->setSingleStep(10); + connect(m_volumeSlider, SIGNAL(valueChanged(int)), this, SLOT(volumeChanged(int))); + volumeBox->addWidget(m_volumeLabel); + volumeBox->addWidget(m_volumeSlider); + layout->addLayout(volumeBox); + window->setLayout(layout.data()); layout.take(); // ownership transferred @@ -231,6 +244,7 @@ void AudioTest::createAudioOutput() connect(m_audioOutput, SIGNAL(stateChanged(QAudio::State)), SLOT(stateChanged(QAudio::State))); m_generator->start(); m_audioOutput->start(m_generator); + m_volumeSlider->setValue(int(m_audioOutput->volume()*100.0f)); } AudioTest::~AudioTest() @@ -248,6 +262,12 @@ void AudioTest::deviceChanged(int index) createAudioOutput(); } +void AudioTest::volumeChanged(int value) +{ + if (m_audioOutput) + m_audioOutput->setVolume(qreal(value/100.0f)); +} + void AudioTest::notified() { qWarning() << "bytesFree = " << m_audioOutput->bytesFree() |