color.h

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/*
 This file is part of the MinGfx Project.
 
 Copyright (c) 2017,2018 Regents of the University of Minnesota.
 All Rights Reserved.
 
 Original Author(s) of this File:
    Dan Keefe, 2018, University of Minnesota
    
 Author(s) of Significant Updates/Modifications to the File:
    ...
 */
 
#ifndef SRC_COLOR_H_
#define SRC_COLOR_H_
 
#include <iostream>
#include <vector>
 
namespace mingfx {
 
    
class Color {
public:  
    Color();
 
    Color(float red, float green, float blue, float alpha=1.0);
 
    Color(float *p);
 
    Color(const std::vector<float> &vals);
 
    Color(const Color& p);
 
    virtual ~Color();
 
    bool operator==(const Color& p) const;
 
    bool operator!=(const Color& p) const;
 
    Color& operator=(const Color& p);
 
    float operator[](const int i) const;
 
    float& operator[](const int i);
 
    const float * value_ptr() const;
    
    std::vector<float> ToVector() const;
 
    Color Lerp(const Color &b, float alpha) const;
    
    static Color Lerp(const Color &a, const Color &b, float alpha);
    
 
private:
    float c[4];
};
 
 
std::ostream & operator<< ( std::ostream &os, const Color &c);
std::istream & operator>> ( std::istream &is, Color &c);
 
 
} // namespace
 
#endif