Lighten up a color. - Java 2D Graphics

Java examples for 2D Graphics:Color

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Description

Lighten up a color.

Demo Code

/*//from  ww w.ja  v a 2 s . com
 * This class contains various graphics and color utility methods.
 *
 * Copyright (C) 1999 Thomas Studer
 * mailto:tstuder@datacomm.ch
 * http://www.datacomm.ch/tstuder
 *
 * This class is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This class 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this class; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
//package com.java2s;
import java.awt.Color;

public class Main {
    private static final Color WHITE_BRIGHTER = new Color(200, 200, 200);
    private static final Color BLACK_BRIGHTER = new Color(125, 125, 125);
    private static final double FACTOR = 0.5;

    /**
     * Lighten up a color.
     *
     * @return A new, brighter variant of the Color passed in the 'color' parameter.
     * @param color The color to lighten up.
     */
    public static Color brighter(Color color) {

        if (color.equals(Color.white))
            return WHITE_BRIGHTER;
        else if (color.equals(Color.black))
            return BLACK_BRIGHTER;
        else {
            // Brighten up dark colors very
            // quickly; lighten up bright colors only a bit.
            int red = color.getRed();
            red += (int) ((255 - red) * FACTOR);
            int blue = color.getBlue();
            blue += (int) ((255 - blue) * FACTOR);
            int green = color.getGreen();
            green += (int) ((255 - green) * FACTOR);

            return new Color(Math.min(red, 255), Math.min(green, 255),
                    Math.min(blue, 255));
        }
    }
}

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