##// END OF EJS Templates
Uses new iterator in DataSeries.cpp...
Uses new iterator in DataSeries.cpp The code of the old iterator is deleted. The new iterator is now built from the Implementation of DataSeriesIteratorValue :: Impl for a DataSeries

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ColorUtils.cpp
29 lines | 1.0 KiB | text/x-c | CppLexer
#include "Common/ColorUtils.h"
#include <QtGui/QColor>
std::vector<QColor> ColorUtils::colors(const QColor &minColor, const QColor &maxColor,
int nbColors) noexcept
{
auto result = std::vector<QColor>{};
if (nbColors == 1) {
result.push_back(minColor);
}
else if (nbColors > 0) {
const auto nbSteps = static_cast<double>(nbColors - 1);
const auto colorHStep = (maxColor.hue() - minColor.hue()) / nbSteps;
const auto colorSStep = (maxColor.saturation() - minColor.saturation()) / nbSteps;
const auto colorVStep = (maxColor.value() - minColor.value()) / nbSteps;
const auto colorAStep = (maxColor.alpha() - minColor.alpha()) / nbSteps;
for (auto i = 0; i < nbColors; ++i) {
result.push_back(QColor::fromHsv(
minColor.hue() + i * colorHStep, minColor.saturation() + i * colorSStep,
minColor.value() + i * colorVStep, minColor.alpha() + i * colorAStep));
}
}
return result;
}