Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright (C) 2011,2012  Southern Storm Software, Pty Ltd.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

import android.graphics.Color;

public class Main {
    /**
     * Lighten a color by a specific factor.
     * 
     * @param color the color to lighten
     * @param factor the factor to apply; e.g. 150 makes the color 50% brighter, 50
     * makes the color 50% darker, 100 makes no change.
     * 
     * @return the lightened version of the color
     */
    public static int lightenColor(int color, int factor) {
        float[] hsv = new float[3];
        Color.colorToHSV(color, hsv);
        float s = hsv[1];
        float v = hsv[2] * factor / 100.0f;
        if (v > 1.0f) {
            // Value has overflowed, so adjust the saturation instead.
            s -= v - 1.0f;
            if (s < 0)
                s = 0;
            v = 1.0f;
        }
        hsv[1] = s;
        hsv[2] = v;
        return Color.HSVToColor(hsv);
    }
}