Java Color Alpha changeAlpha(Color c, int alpha)

Description

Changes the alpha of a given color.

License

Open Source License

Parameter

Parameter	Description
c	The color to modify.
alpha	The alpha to set it as.

Return

The changed color. Could be null.

Declaration

public static Color changeAlpha(Color c, int alpha) 

Method Source Code

//package com.java2s;
/*//from   ww w  . ja  va  2  s.  c  om
 * Copyright (C) 2012 JPII and contributors
 *
 * 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 java.awt.Color;

public class Main {
    /**
     * Changes the alpha of a given color.
     * @param c The color to modify.
     * @param alpha The alpha to set it as.
     * @return The changed color. Could be null.
     */
    public static Color changeAlpha(Color c, int alpha) {
        if (c == null)
            return null;
        return new Color(c.getRed(), c.getGreen(), c.getBlue(), alpha);
    }
}

Related

1. applyColorFilter(Image image, Color color, float alpha)
2. buildColorRamp(Color startColor, Color endColor, int numColors, int alpha)
3. changeAlpha(Color c, double alpha)
4. changeAlpha(Color c, double newAlpha)
5. changeColorAlpha(@Nonnull Color color, int newAlpha)
6. deriveWithAlpha(Color color, int alpha)
7. newColourWithAlpha(Color color, double alpha)
8. noAlpha(final Color col)