gradient.h

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#ifndef UPDRAFT_SRC_LIBRARIES_UTIL_GRADIENT_H_
#define UPDRAFT_SRC_LIBRARIES_UTIL_GRADIENT_H_

#include <QColor>

#include "util.h"
#include "linearfunc.h"

namespace Updraft {
namespace Util {

class UTIL_EXPORT Gradient {
 public:
  Gradient(const QColor &c1, const QColor &c2, bool reverseHue = false);

  Gradient() {}

  QColor get(qreal t) const;

 protected:
  // static const double ACHROMATIC_THRESHOLD = 0.005;

  LinearFunc hue;
  LinearFunc sat;
  LinearFunc val;
  LinearFunc alpha;
};

}  // End namespace Util
}  // End namespace Updraft

#endif  // UPDRAFT_SRC_LIBRARIES_UTIL_GRADIENT_H_