HG_REPOSITORIES/LPP/INSTRUMENTATION/USERS/JEANDET/qtcharts Files · demos/audio/widget.cpp

Adding metatype declarations in qml plugin for Qt5...

Adding metatype declarations in qml plugin for Qt5 Not sure why they are needed for Qt5. Definetly NOT needed for Qt4.

Tero Ahola - - Load All Authors

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r2239:7132c010391a


                r2257:b97c592cff78

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             widget.cpp
        
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             / demos / audio / widget.cpp
          
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        Marek Rosa
    
Added audio input demo

              r2155
            
      #include "widget.h"

      #include <QAudioDeviceInfo>

      #include <QAudioInput>

      #include <QChartView>

      #include <QLineSeries>

      #include <QChart>

      #include <QVBoxLayout>

      #include <QValueAxis>

      #include "xyseriesiodevice.h"

      QTCOMMERCIALCHART_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;

        Marek Rosa
    
Added axes titles to audio example and decreased the number of samples on chart to 2000

              r2214
            
          axisX->setRange(0, 2000);

          axisX->setLabelFormat("%g");

          axisX->setTitle("Samples");

        Marek Rosa
    
Added audio input demo

              r2155
            
          QValueAxis *axisY = new QValueAxis;

        Marek Rosa
    
Added axes titles to audio example and decreased the number of samples on chart to 2000

              r2214
            
          axisY->setRange(-1, 1);

          axisY->setTitle("Audio level");

          m_chart->setAxisX(axisX, m_series);    

        Marek Rosa
    
Added audio input demo

              r2155
            
          m_chart->setAxisY(axisY, m_series);

        Marek Rosa
    
Audio example now takes every other value from mic input

              r2159
            
          m_chart->legend()->hide();

        Marek Rosa
    
Added axes titles to audio example and decreased the number of samples on chart to 2000

              r2214
            
          m_chart->setTitle("Data from the microphone");

        Marek Rosa
    
Added audio input demo

              r2155
            
          QVBoxLayout *mainLayout = new QVBoxLayout;

          mainLayout->addWidget(chartView);

          setLayout(mainLayout);

          QAudioFormat formatAudio;

        Tero Ahola
    
Qt5 build fixes

              r2239
            
          formatAudio.setSampleRate(8000);

          formatAudio.setChannelCount(1);

        Marek Rosa
    
Added audio input demo

              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();

      }

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Marek Rosa Added audio input demo	r2155	#include "widget.h"
		#include <QAudioDeviceInfo>
		#include <QAudioInput>
		#include <QChartView>
		#include <QLineSeries>
		#include <QChart>
		#include <QVBoxLayout>
		#include <QValueAxis>
		#include "xyseriesiodevice.h"

		QTCOMMERCIALCHART_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;
Marek Rosa Added axes titles to audio example and decreased the number of samples on chart to 2000	r2214	axisX->setRange(0, 2000);
		axisX->setLabelFormat("%g");
		axisX->setTitle("Samples");
Marek Rosa Added audio input demo	r2155	QValueAxis *axisY = new QValueAxis;
Marek Rosa Added axes titles to audio example and decreased the number of samples on chart to 2000	r2214	axisY->setRange(-1, 1);
		axisY->setTitle("Audio level");
		m_chart->setAxisX(axisX, m_series);
Marek Rosa Added audio input demo	r2155	m_chart->setAxisY(axisY, m_series);
Marek Rosa Audio example now takes every other value from mic input	r2159	m_chart->legend()->hide();
Marek Rosa Added axes titles to audio example and decreased the number of samples on chart to 2000	r2214	m_chart->setTitle("Data from the microphone");
Marek Rosa Added audio input demo	r2155
		QVBoxLayout *mainLayout = new QVBoxLayout;
		mainLayout->addWidget(chartView);
		setLayout(mainLayout);

		QAudioFormat formatAudio;
Tero Ahola Qt5 build fixes	r2239	formatAudio.setSampleRate(8000);
		formatAudio.setChannelCount(1);
Marek Rosa Added audio input demo	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();
		}