JDK8/Java8源码在线阅读

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * 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).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
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package java.awt;

import java.lang.annotation.Native;

/**
 * The <code>Transparency</code> interface defines the common transparency
 * modes for implementing classes.
 */
public interface Transparency {

    /**
     * Represents image data that is guaranteed to be completely opaque,
     * meaning that all pixels have an alpha value of 1.0.
     */
    @Native public final static int OPAQUE            = 1;

    /**
     * Represents image data that is guaranteed to be either completely
     * opaque, with an alpha value of 1.0, or completely transparent,
     * with an alpha value of 0.0.
     */
    @Native public final static int BITMASK = 2;

    /**
     * Represents image data that contains or might contain arbitrary
     * alpha values between and including 0.0 and 1.0.
     */
    @Native public final static int TRANSLUCENT        = 3;

    /**

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