2362N/A * Copyright (c) 1997, 1998, Oracle and/or its affiliates. All rights reserved. 0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 0N/A * This code is free software; you can redistribute it and/or modify it 0N/A * under the terms of the GNU General Public License version 2 only, as 2362N/A * published by the Free Software Foundation. Oracle designates this 0N/A * particular file as subject to the "Classpath" exception as provided 2362N/A * by Oracle in the LICENSE file that accompanied this code. 0N/A * This code is distributed in the hope that it will be useful, but WITHOUT 0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 0N/A * version 2 for more details (a copy is included in the LICENSE file that 0N/A * accompanied this code). 0N/A * You should have received a copy of the GNU General Public License version 0N/A * 2 along with this work; if not, write to the Free Software Foundation, 0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 2362N/A * or visit www.oracle.com if you need additional information or have any 0N/A * The <code>Composite</code> interface, along with 0N/A * {@link CompositeContext}, defines the methods to compose a draw 0N/A * primitive with the underlying graphics area. 0N/A * After the <code>Composite</code> is set in the 0N/A * {@link Graphics2D} context, it combines a shape, text, or an image 0N/A * being rendered with the colors that have already been rendered 0N/A * according to pre-defined rules. The classes 0N/A * implementing this interface provide the rules and a method to create 0N/A * the context for a particular operation. 0N/A * <code>CompositeContext</code> is an environment used by the 0N/A * compositing operation, which is created by the <code>Graphics2D</code> 0N/A * prior to the start of the operation. <code>CompositeContext</code> 0N/A * contains private information and resources needed for a compositing 0N/A * operation. When the <code>CompositeContext</code> is no longer needed, 0N/A * the <code>Graphics2D</code> object disposes of it in order to reclaim 0N/A * resources allocated for the operation. 0N/A * Instances of classes implementing <code>Composite</code> must be 0N/A * immutable because the <code>Graphics2D</code> does not clone 0N/A * these objects when they are set as an attribute with the 0N/A * <code>setComposite</code> method or when the <code>Graphics2D</code> 0N/A * object is cloned. This is to avoid undefined rendering behavior of 0N/A * <code>Graphics2D</code>, resulting from the modification of 0N/A * the <code>Composite</code> object after it has been set in the 0N/A * <code>Graphics2D</code> context. 0N/A * Since this interface must expose the contents of pixels on the 0N/A * target device or image to potentially arbitrary code, the use of 0N/A * custom objects which implement this interface when rendering directly 0N/A * to a screen device is governed by the <code>readDisplayPixels</code> 0N/A * {@link AWTPermission}. The permission check will occur when such 0N/A * a custom object is passed to the <code>setComposite</code> method 0N/A * of a <code>Graphics2D</code> retrieved from a {@link Component}. 0N/A * @see AlphaComposite 0N/A * @see CompositeContext 0N/A * @see Graphics2D#setComposite 0N/A * Creates a context containing state that is used to perform 0N/A * the compositing operation. In a multi-threaded environment, 0N/A * several contexts can exist simultaneously for a single 0N/A * <code>Composite</code> object. 0N/A * @param srcColorModel the {@link ColorModel} of the source 0N/A * @param dstColorModel the <code>ColorModel</code> of the destination 0N/A * @param hints the hint that the context object uses to choose between 0N/A * rendering alternatives 0N/A * @return the <code>CompositeContext</code> object used to perform the 0N/A * compositing operation.