GuitarTuner::GuitarTuner(QWidget *parent) :
QMainWindow(parent)
{
// Set up the QML.
m_guitarTunerUI = new QDeclarativeView(QUrl("qrc:/src/application.qml"), this);
setCentralWidget(m_guitarTunerUI);
m_guitarTunerUI->setResizeMode(QDeclarativeView::SizeRootObjectToView);
qmlObject = m_guitarTunerUI->rootObject();
// Init audio output and input.
initAudioOutput();
initAudioInput();
// Connect the quit signal of m_guitarTunerUI
// into the close slot of this.
connect(m_guitarTunerUI->engine(), SIGNAL(quit()), SLOT(close()));
// Connect the signals from qmlObject into proper slots
// of this and m_voicegenerator.
connect(qmlObject, SIGNAL(muteStateChanged(bool)),
SLOT(muteStateChanged(bool)));
connect(qmlObject, SIGNAL(volumeChanged(qreal)),
m_voicegenerator, SLOT(setAmplitude(qreal)));
connect(qmlObject, SIGNAL(volumeChanged(qreal)),
SLOT(setMaxVolumeLevel(qreal)));
// Connect the modeChanged signal from qmlObject
// into modeChanged slot of this class.
connect(qmlObject, SIGNAL(modeChanged(bool)),
SLOT(modeChanged(bool)));
// Connect the microphoneSensitivityChanged signal from
// m_guitarTunerUI into setCutOffPercentage slot of m_analyzer class.
connect(qmlObject, SIGNAL(microphoneSensitivityChanged(qreal)),
m_analyzer, SLOT(setCutOffPercentage(qreal)));
// Connect the signals from m_analyzer into slots of qmlObject.
connect(m_analyzer, SIGNAL(lowVoice()),
qmlObject, SLOT(lowVoice()));
connect(m_analyzer, SIGNAL(correctFrequency()),
qmlObject, SLOT(correctFrequencyObtained()));
connect(m_analyzer, SIGNAL(voiceDifference(QVariant)),
qmlObject, SLOT(voiceDifferenceChanged(QVariant)));
// Initialise the MaximumVoiceDifference
// value of qmlObject with the value obtained from m_analyzer.
qmlObject->setProperty("maxVoiceDifference",
m_analyzer->getMaximumVoiceDifference());
// Connect the targetFrequencyChanged signal of qmlObject
// into targetFrequencyChanged slot of this class.
connect(qmlObject, SIGNAL(targetFrequencyChanged(qreal)),
SLOT(targetFrequencyChanged(qreal)));
// Start voice output or input by using the modeChanged function,
// depending of the current mode.
modeChanged(qmlObject->property("isInput").toBool());
}
/**
* Changes the tone according to the new index.
*/
void GuitarTunerUI::changeTone(int newIndex)
{
m_currentToneIndex = newIndex;
updateFrequencyByToneIndex(m_currentToneIndex);
qDebug() << "targetFrequencyChanged" << m_currentToneFrequency;
emit targetFrequencyChanged(m_currentToneFrequency);
}
