colorspace.h

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#ifndef COLOR_SPACE_H
#define COLOR_SPACE_H
 
#include "utils.h"
 
namespace lampda {
namespace utils {
 
namespace ColorSpace {
 
class Base
{
public:
  virtual ~Base() = default;
  virtual COLOR get_rgb() const = 0;
};
 
class XYZ : public Base
{
public:
  XYZ(const COLOR& c) { from_rgb(c); };
  XYZ(double x, double y, double z) : x(x), y(y), z(z) {};
  static XYZ get_white()
  {
    static const XYZ white(95.047, 100.000, 108.883);
    return white;
  }
 
  COLOR get_rgb() const override;
  void from_rgb(const COLOR& rgb);
 
  double x; 
  double y; 
  double z; 
};
 
class RGB : public Base
{
public:
  RGB(uint8_t red, uint8_t green, uint8_t blue)
  {
    _color.red = red;
    _color.green = green;
    _color.blue = blue;
  }
  RGB(const uint32_t color) { _color.color = color; }
  COLOR get_rgb() const override { return _color; }
 
private:
  COLOR _color;
};
 
// define some colors
static const RGB RED(255, 0, 0);
static const RGB GREEN(0, 255, 0);
static const RGB BLUE(0, 0, 255);
static const RGB WHITE(255, 255, 255);
 
static const RGB BLACK(0, 0, 0);
static const RGB FUSHIA(255, 0, 255);
static const RGB TEAL(0, 255, 255);
static const RGB YELLOW(200, 255, 0);
static const RGB PINK(255, 20, 147);
static const RGB TOMATO(255, 99, 71);
static const RGB ORANGE(255, 140, 0);
static const RGB DARK_ORANGE(255, 90, 0);
static const RGB PURPLE(128, 0, 128);
 
class HSV : public Base
{
public:
  HSV(const COLOR& c) { from_rgb(c); };
  HSV(double h, double s, double v) : h(h), s(s), v(v) {};
 
  COLOR get_rgb() const override;
  void from_rgb(const COLOR& rgb);
 
  uint16_t get_scaled_hue() const { return static_cast<uint16_t>(h / 360.0 * UINT16_MAX); }
 
  double h; 
  double s; 
  double v; 
};
 
class LAB : public Base
{
public:
  LAB(const COLOR& c) { from_rgb(c); };
  LAB(const double l, const double a, const double b) : l(l), a(a), b(b) {};
 
  COLOR get_rgb() const override;
  void from_rgb(const COLOR& rgb);
 
  double l; 
  double a; 
  double b; 
};
 
class LCH : public Base
{
public:
  LCH(const COLOR& c) { from_rgb(c); };
  LCH(const double l, const double c, const double h) : l(l), c(c), h(h) {};
 
  COLOR get_rgb() const override;
  void from_rgb(const COLOR& rgb);
 
  uint16_t get_scaled_hue() const { return static_cast<uint16_t>(h / 360.0 * UINT16_MAX); }
 
  double l; 
  double c; 
  double h; 
};
 
class OKLAB : public Base
{
public:
  OKLAB(const COLOR& c) { from_rgb(c); };
  OKLAB(const double l, const double a, const double b) : l(l), a(a), b(b) {};
 
  COLOR get_rgb() const override;
 
  void from_rgb(const COLOR& rgb);
 
  double l; 
  double a; 
  double b; 
};
 
class OKLCH : public Base
{
public:
  OKLCH(const COLOR& c) { from_rgb(c); };
  OKLCH(const double l, const double c, const double h) : l(l), c(c), h(h) {};
 
  COLOR get_rgb() const override;
 
  void from_rgb(const COLOR& rgb);
 
  uint16_t get_scaled_hue() const { return static_cast<uint16_t>(h / 360.0 * UINT16_MAX); }
 
  double l; 
  double c; 
  double h; 
};
 
} // namespace ColorSpace
} // namespace utils
} // namespace lampda
 
#endif