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Color.h

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// $Id: Color.h,v 1.3 2003/04/16 17:50:35 sponce Exp $
#ifndef VISSVC_COLOR_H 
#define VISSVC_COLOR_H 1

// Include files

class Color {
public:
  Color (); 
  Color (float R, float G, float B); 
  Color (float R, float G, float B, float A); 
  Color (const float [4]);

  const float* value() const;
  const float red () const;
  const float green () const;
  const float blue () const;
  const float alpha () const;

  bool isValid() const;
  bool operator== (const Color& c) const;
  bool operator!= (const Color& c) const;

protected:
  float vec[4];
};

inline Color::Color () {
  vec[0] = 2;
  vec[1] = 2;
  vec[2] = 2;
  vec[3] = 2;
}

inline Color::Color (float R, float G, float B) {
  vec[0] = R;
  vec[1] = G;
  vec[2] = B;
  vec[3] = 0;
}

inline Color::Color (float R, float G, float B, float A) {
  vec[0] = R;
  vec[1] = G;
  vec[2] = B;
  vec[3] = A;
}

inline const float* Color::value() const {
  return vec;
}

inline const float Color::red () const {
  return vec[0];
}

inline const float Color::green () const {
  return vec[1];
}

inline const float Color::blue () const {
  return vec[2];
}

inline const float Color::alpha () const {
  return vec[3];
}

inline bool Color::isValid() const {
  return vec[0] >= 0 && vec[0] <= 1 &&
    vec[1] >= 0 && vec[1] <= 1 &&
    vec[2] >= 0 && vec[2] <= 1 &&
    vec[3] >= 0 && vec[3] <= 1;
}

inline bool Color::operator==(const Color& c) const {
  return vec[0] == c.red() && vec[1] == c.green() &&
    vec[2] == c.blue() && vec[3] == c.alpha();
}

inline bool Color::operator!= (const Color& c) const {
  return !this->operator==(c);
}

#endif // VISSVC_COLOR_H

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