/*!
* Initialize color map with some predefined colors.
* Useful colors: http://www.computerhope.com/htmcolor.htm
*/
ColorMap::ColorMap(void)
{
//the unspecified type
this->registerName(Pothos::DType().name(), Qt::gray);
//integer types
registerIntType<int8_t>(Qt::magenta);
registerIntType<int16_t>(Qt::yellow);
registerIntType<int32_t>(Qt::green);
static const QColor orange("#FF7F00");
registerIntType<int64_t>(orange);
//floating point
registerFloatType<float>(Qt::red);
static const QColor skyBlue("#6698FF");
registerFloatType<double>(skyBlue);
//strings
static const QColor cornYellow("#FFF380");
registerRType<std::string>(cornYellow);
registerRType<std::wstring>(cornYellow);
registerRType<QString>(cornYellow);
//boolean
static const QColor tiffBlue("#81D8D0");
registerRType<bool>(tiffBlue);
//finalize with the pastelize
for (auto &pair : *this) pair.second = pastelize(pair.second);
}
/***********************************************************************
* work functions
**********************************************************************/
void ConstellationDisplay::handleSamples(const Pothos::BufferChunk &buff)
{
if (_queueDepth.fetch_sub(1) != 1) return;
//create curve that it doesnt exist
if (not _curve)
{
_curve.reset(new QwtPlotCurve());
_curve->attach(_mainPlot);
_curve->setPen(pastelize(getDefaultCurveColor(0)), 2.0);
_curve->setStyle(QwtPlotCurve::Dots);
}
//convert to points and post to curve
const auto samps = buff.as<const std::complex<float> *>();
QVector<QPointF> points(buff.elements());
for (int i = 0; i < points.size(); i++)
{
points[i] = QPointF(samps[i].real(), samps[i].imag());
}
_curve->setSamples(points);
//replot
_mainPlot->replot();
}
static QColor __typeStrToColor(const QString &typeStr)
{
//This first part does nothing more than create 3 random 8bit numbers
//by mapping a chunk of a repeatable hash function to a color hex code.
QCryptographicHash hasher(QCryptographicHash::Md5);
hasher.addData(typeStr.toUtf8());
const auto hexHash = hasher.result().toHex();
QColor c("#" + QString(hexHash).mid(0, 6));
//Use the 3 random numbers to create a pastel color.
return pastelize(c);
}
