Creates a copy of the given color with the specified transparency - Java 2D Graphics

Java examples for 2D Graphics:Color

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Description

Creates a copy of the given color with the specified transparency

Demo Code

/* Copyright (c) 2011 Danish Maritime Authority.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.//from   ww  w . ja va2 s . co m
 */
//package com.java2s;

import java.awt.Color;

public class Main {
    /**
     * Creates a copy of the given color with the specified transparency
     * 
     * @param color the color to create a transparent copy of
     * @param transparency the transparency, between 0 and 255.
     * @return the transparent version of the color
     */
    public static Color transparentColor(Color color, int transparency) {
        if (color == null) {
            return null;
        }
        transparency = Math.min(Math.max(0, transparency), 255);
        return new Color(color.getRed(), color.getGreen(), color.getBlue(),
                transparency);
    }
}

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