GIT_REPOSITORIES/LPP/Users/mperrinel/SciQLop-fork Files · gui/src/Common/ColorUtils.cpp

Handles rendering properties for spectrograms...

Handles rendering properties for spectrograms Spectrogram's colormap uses gradient and is associated to the color scale of the plot

Alexandre Leroux - - Load All Authors

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             ColorUtils.cpp
        
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      #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;

      }

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				#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;
				}