Verifies whether a given GraphicsConfiguration supports the PERPIXEL_TRANSLUCENT kind of translucency. - Java 2D Graphics

Java examples for 2D Graphics:Graphics

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Description

Verifies whether a given GraphicsConfiguration supports the PERPIXEL_TRANSLUCENT kind of translucency.

Demo Code

/*/*from   ww  w. jav a  2  s.  c  o m*/
 * Copyright (c) 2008, 2017, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code 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
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
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//package com.java2s;
import java.awt.*;

import sun.awt.SunToolkit;

public class Main {
    /**
     * Verifies whether a given GraphicsConfiguration supports
     * the PERPIXEL_TRANSLUCENT kind of translucency.
     * All windows that are intended to be used with the {@link #setWindowOpaque}
     * method must be created using a GraphicsConfiguration for which this method
     * returns true.
     * <p>Note that some native systems enable the per-pixel translucency
     * mode for any window created using a translucency-capable
     * graphics configuration. However, it is highly recommended to always
     * invoke the setWindowOpaque() method for these windows, at least
     * for the sake of cross-platform compatibility reasons.
     *
     * @param gc GraphicsConfiguration
     * @throws NullPointerException if the gc argument is null
     * @return whether the given GraphicsConfiguration supports
     *         the translucency effects.
     */
    public static boolean isTranslucencyCapable(GraphicsConfiguration gc) {
        if (gc == null) {
            throw new NullPointerException(
                    "The gc argument should not be null");
        }
        /*
        return gc.isTranslucencyCapable();
         */
        Toolkit curToolkit = Toolkit.getDefaultToolkit();
        if (!(curToolkit instanceof SunToolkit)) {
            return false;
        }
        return ((SunToolkit) curToolkit).isTranslucencyCapable(gc);
    }
}

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