##// END OF EJS Templates
changing order of series in qmlweather example. This is a workaround to make axis values right. Should not be order dependant, like it is now
changing order of series in qmlweather example. This is a workaround to make axis values right. Should not be order dependant, like it is now

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r2214:0a3cbf6ad29b
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xyseriesiodevice.cpp
37 lines | 966 B | text/x-c | CppLexer
/ demos / audio / xyseriesiodevice.cpp
Marek Rosa
Added audio input demo
r2155 #include "xyseriesiodevice.h"
#include <QXYSeries>
XYSeriesIODevice::XYSeriesIODevice(QXYSeries * series, QObject *parent) :
QIODevice(parent),
m_series(series)
{
}
qint64 XYSeriesIODevice::readData(char * data, qint64 maxSize)
{
Q_UNUSED(data)
Q_UNUSED(maxSize)
return -1;
}
qint64 XYSeriesIODevice::writeData(const char * data, qint64 maxSize)
{
Marek Rosa
Added axes titles to audio example and decreased the number of samples on chart to 2000
r2214 qint64 range = 2000;
Marek Rosa
Added audio input demo
r2155 QList<QPointF> oldPoints = m_series->points();
QList<QPointF> points;
Marek Rosa
Added axes titles to audio example and decreased the number of samples on chart to 2000
r2214 int resolution = 4;
Marek Rosa
Added audio input demo
r2155
if (oldPoints.count() < range) {
points = m_series->points();
} else {
Marek Rosa
Added axes titles to audio example and decreased the number of samples on chart to 2000
r2214 for (int i = maxSize/resolution; i < oldPoints.count(); i++)
points.append(QPointF(i - maxSize/resolution, oldPoints.at(i).y()));
Marek Rosa
Added audio input demo
r2155 }
qint64 size = points.count();
Marek Rosa
Added axes titles to audio example and decreased the number of samples on chart to 2000
r2214 for (int k = 0; k < maxSize/resolution; k++)
points.append(QPointF(k + size, ((quint8)data[resolution * k] - 128)/128.0));
Marek Rosa
Added audio input demo
r2155
m_series->replace(points);
return maxSize;
}