blue_to_red_color.h

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#ifndef HEDGEHOG_BLUE_TO_RED_COLOR_H
#define HEDGEHOG_BLUE_TO_RED_COLOR_H
 
#include <cmath>
#include <sstream>
#include <iomanip>
 
#include "options/color_picker.h"
 
namespace hh {
 
class BlueToRedColor : public ColorPicker {
 public:
  BlueToRedColor() = default;
  ~BlueToRedColor() override = default;
 
  std::string getRGBFromRange(std::chrono::nanoseconds const &value,
                              std::chrono::nanoseconds const &min,
                              std::chrono::nanoseconds const &range) override {
 
    auto posRedToBlue = (uint64_t) std::round((double) (value.count() - min.count()) / (double) range.count() * 255);
    posRedToBlue = std::clamp(posRedToBlue, (uint64_t) 0, (uint64_t) 255);
    std::stringstream ss;
    ss << "\"#"
       << std::setfill('0') << std::setw(2) << std::hex << posRedToBlue
       << "00"
       << std::setfill('0') << std::setw(2) << std::hex << 255 - posRedToBlue
       << "\"";
 
    return ss.str();
  }
 
};
 
}
#endif //HEDGEHOG_BLUE_TO_RED_COLOR_H