From f911ba985aa7fe0096c386c5be385ac5825ea527 Mon Sep 17 00:00:00 2001 From: Tom Tromey Date: Sat, 16 Jul 2005 00:30:23 +0000 Subject: Initial revision From-SVN: r102074 --- libjava/classpath/java/awt/Composite.java | 73 +++++++++++++++++++++++++++++++ 1 file changed, 73 insertions(+) create mode 100644 libjava/classpath/java/awt/Composite.java (limited to 'libjava/classpath/java/awt/Composite.java') diff --git a/libjava/classpath/java/awt/Composite.java b/libjava/classpath/java/awt/Composite.java new file mode 100644 index 0000000..ca3abe4 --- /dev/null +++ b/libjava/classpath/java/awt/Composite.java @@ -0,0 +1,73 @@ +/* Composite.java -- graphics formed from composite layers + Copyright (C) 2002, 2005 Free Software Foundation, Inc. + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath 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 for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + + +package java.awt; + +import java.awt.image.ColorModel; + +/** + * This interface is for graphics which are formed as composites of others. + * It combines {@link Graphics2D} shapes according to defined rules to form + * the new image. Implementations of this interface must be immutable, because + * they are not cloned when a Graphics2D container is cloned. + * + *

Since this can expose pixels to untrusted code, there is a security + * check on custom objects, readDisplayPixels, to prevent leaking + * restricted information graphically. + * + * @author Eric Blake (ebb9@email.byu.edu) + * @see AlphaComposite + * @see CompositeContext + * @see Graphics2D#setComposite(Composite) + * @since 1.2 + * @status updated to 1.4 + */ +public interface Composite +{ + /** + * Create a context state for performing the compositing operation. Several + * contexts may exist for this object, in a multi-threaded environment. + * + * @param srcColorModel the color model of the source + * @param dstColorModel the color model of the destination + * @param hints hints for choosing between rendering alternatives + */ + CompositeContext createContext(ColorModel srcColorModel, + ColorModel dstColorModel, + RenderingHints hints); +} // interface Composite -- cgit v1.1