Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Apache License 

public class Main {
    /**
     * Returns the hue component of a color int.
     *
     * @return A value between 0.0f and 1.0f
     *
     * @hide Pending API council
     */
    public static float hue(int color) {
        int r = (color >> 16) & 0xFF;
        int g = (color >> 8) & 0xFF;
        int b = color & 0xFF;

        int V = Math.max(b, Math.max(r, g));
        int temp = Math.min(b, Math.min(r, g));

        float H;

        if (V == temp) {
            H = 0;
        } else {
            final float vtemp = (float) (V - temp);
            final float cr = (V - r) / vtemp;
            final float cg = (V - g) / vtemp;
            final float cb = (V - b) / vtemp;

            if (r == V) {
                H = cb - cg;
            } else if (g == V) {
                H = 2 + cr - cb;
            } else {
                H = 4 + cg - cr;
            }

            H /= 6.f;
            if (H < 0) {
                H++;
            }
        }

        return H;
    }
}