1 files changed, 82 insertions, 0 deletions
diff --git a/examples/charts/audio/widget.cpp b/examples/charts/audio/widget.cpp
new file mode 100644
index 00000000..6cd5d442
--- /dev/null
+++ b/examples/charts/audio/widget.cpp
@@ -0,0 +1,82 @@
+/****************************************************************************
+**
+** Copyright (C) 2014 Digia Plc
+** All rights reserved.
+** For any questions to Digia, please use contact form at http://qt.digia.com
+**
+** This file is part of the Qt Enterprise Charts Add-on.
+**
+** $QT_BEGIN_LICENSE$
+** Licensees holding valid Qt Enterprise licenses may use this file in
+** accordance with the Qt Enterprise License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.
+**
+** If you have questions regarding the use of this file, please use
+** contact form at http://qt.digia.com
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "widget.h"
+#include <QAudioDeviceInfo>
+#include <QAudioInput>
+#include <QChartView>
+#include <QLineSeries>
+#include <QChart>
+#include <QVBoxLayout>
+#include <QValueAxis>
+#include "xyseriesiodevice.h"
+
+QT_CHARTS_USE_NAMESPACE
+
+Widget::Widget(QWidget *parent)
+    : QWidget(parent),
+      m_device(0),
+      m_chart(0),
+      m_series(0),
+      m_audioInput(0)
+{
+    m_chart = new QChart;
+    QChartView *chartView = new QChartView(m_chart);
+    chartView->setMinimumSize(800, 600);
+    m_series = new QLineSeries;
+    m_chart->addSeries(m_series);
+    QValueAxis *axisX = new QValueAxis;
+    axisX->setRange(0, 2000);
+    axisX->setLabelFormat("%g");
+    axisX->setTitleText("Samples");
+    QValueAxis *axisY = new QValueAxis;
+    axisY->setRange(-1, 1);
+    axisY->setTitleText("Audio level");
+    m_chart->setAxisX(axisX, m_series);
+    m_chart->setAxisY(axisY, m_series);
+    m_chart->legend()->hide();
+    m_chart->setTitle("Data from the microphone");
+
+    QVBoxLayout *mainLayout = new QVBoxLayout;
+    mainLayout->addWidget(chartView);
+    setLayout(mainLayout);
+
+    QAudioFormat formatAudio;
+    formatAudio.setSampleRate(8000);
+    formatAudio.setChannelCount(1);
+    formatAudio.setSampleSize(8);
+    formatAudio.setCodec("audio/pcm");
+    formatAudio.setByteOrder(QAudioFormat::LittleEndian);
+    formatAudio.setSampleType(QAudioFormat::UnSignedInt);
+
+    QAudioDeviceInfo inputDevices = QAudioDeviceInfo::defaultInputDevice();
+    m_audioInput = new QAudioInput(inputDevices,formatAudio, this);
+
+    m_device = new XYSeriesIODevice(m_series, this);
+    m_device->open(QIODevice::WriteOnly);
+
+    m_audioInput->start(m_device);
+}
+
+Widget::~Widget()
+{
+    m_audioInput->stop();
+    m_device->close();
+}