widget.cpp
80 lines
| 2.5 KiB
| text/x-c
|
CppLexer
Miikka Heikkinen
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r2435 | /**************************************************************************** | ||
| ** | ||||
Titta Heikkala
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r2776 | ** Copyright (C) 2015 The Qt Company Ltd | ||
|
Miikka Heikkinen
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r2435 | ** All rights reserved. | ||
|
Titta Heikkala
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r2776 | ** For any questions to The Qt Company, please use contact form at http://qt.io | ||
|
Miikka Heikkinen
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r2435 | ** | ||
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Titta Heikkala
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r2740 | ** This file is part of the Qt Charts module. | ||
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Miikka Heikkinen
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r2435 | ** | ||
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Titta Heikkala
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r2740 | ** Licensees holding valid commercial license for Qt may use this file in | ||
| ** accordance with the Qt License Agreement provided with the Software | ||||
| ** or, alternatively, in accordance with the terms contained in a written | ||||
|
Titta Heikkala
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r2776 | ** agreement between you and The Qt Company. | ||
|
Miikka Heikkinen
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r2435 | ** | ||
| ** If you have questions regarding the use of this file, please use | ||||
|
Titta Heikkala
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r2740 | ** contact form at http://qt.io | ||
|
Miikka Heikkinen
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r2435 | ** | ||
| ****************************************************************************/ | ||||
Marek Rosa
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r2155 | #include "widget.h" | ||
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Titta Heikkala
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r2714 | #include <QtMultimedia/QAudioDeviceInfo> | ||
| #include <QtMultimedia/QAudioInput> | ||||
| #include <QtCharts/QChartView> | ||||
| #include <QtCharts/QLineSeries> | ||||
| #include <QtCharts/QChart> | ||||
| #include <QtWidgets/QVBoxLayout> | ||||
| #include <QtCharts/QValueAxis> | ||||
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Marek Rosa
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r2155 | #include "xyseriesiodevice.h" | ||
Titta Heikkala
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r2712 | QT_CHARTS_USE_NAMESPACE | ||
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Marek Rosa
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r2155 | |||
| 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; | ||||
|
Marek Rosa
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r2214 | axisX->setRange(0, 2000); | ||
| axisX->setLabelFormat("%g"); | ||||
Michal Klocek
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r2273 | axisX->setTitleText("Samples"); | ||
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Marek Rosa
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r2155 | QValueAxis *axisY = new QValueAxis; | ||
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Marek Rosa
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r2214 | axisY->setRange(-1, 1); | ||
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Michal Klocek
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r2273 | axisY->setTitleText("Audio level"); | ||
| m_chart->setAxisX(axisX, m_series); | ||||
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Marek Rosa
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r2155 | m_chart->setAxisY(axisY, m_series); | ||
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Marek Rosa
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r2159 | m_chart->legend()->hide(); | ||
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Marek Rosa
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r2214 | m_chart->setTitle("Data from the microphone"); | ||
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Marek Rosa
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r2155 | |||
| QVBoxLayout *mainLayout = new QVBoxLayout; | ||||
| mainLayout->addWidget(chartView); | ||||
| setLayout(mainLayout); | ||||
| QAudioFormat formatAudio; | ||||
Tero Ahola
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r2239 | formatAudio.setSampleRate(8000); | ||
| formatAudio.setChannelCount(1); | ||||
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Marek Rosa
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r2155 | 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(); | ||||
| } | ||||