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74 lines
3.0 KiB
Java
74 lines
3.0 KiB
Java
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/* Composite.java -- graphics formed from composite layers
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Copyright (C) 2002, 2005 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package java.awt;
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import java.awt.image.ColorModel;
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/**
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* This interface is for graphics which are formed as composites of others.
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* It combines {@link Graphics2D} shapes according to defined rules to form
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* the new image. Implementations of this interface must be immutable, because
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* they are not cloned when a Graphics2D container is cloned.
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*
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* <p>Since this can expose pixels to untrusted code, there is a security
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* check on custom objects, <code>readDisplayPixels</code>, to prevent leaking
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* restricted information graphically.
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*
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* @author Eric Blake (ebb9@email.byu.edu)
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* @see AlphaComposite
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* @see CompositeContext
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* @see Graphics2D#setComposite(Composite)
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* @since 1.2
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* @status updated to 1.4
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*/
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public interface Composite
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{
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/**
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* Create a context state for performing the compositing operation. Several
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* contexts may exist for this object, in a multi-threaded environment.
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*
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* @param srcColorModel the color model of the source
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* @param dstColorModel the color model of the destination
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* @param hints hints for choosing between rendering alternatives
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*/
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CompositeContext createContext(ColorModel srcColorModel,
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ColorModel dstColorModel,
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RenderingHints hints);
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} // interface Composite
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