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108 lines
3.3 KiB
Java
108 lines
3.3 KiB
Java
/* ImageCapabilities.java -- the capabilities of an image buffer
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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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/**
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* This class represents the capabilities of an image buffer. An
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* image buffer may be backed by accelerated graphics resources.
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* Those resources may or may not be volatile. This class is used to
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* describe these image buffer characteristics.
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*/
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public class ImageCapabilities implements Cloneable
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{
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/**
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* Whether or not this the image buffer uses accelerated graphics
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* resources.
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*/
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private final boolean accelerated;
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/**
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* Create a new image capability descriptor.
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*
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* @param accelerated true if the image buffer uses accelerated
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* graphics resources
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*/
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public ImageCapabilities(boolean accelerated)
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{
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this.accelerated = accelerated;
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}
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/**
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* Returns whether or not the image buffer uses accelerated graphics
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* resources.
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*
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* @return true if the image buffer uses accelerated graphics
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* resources; false otherwise
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*/
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public boolean isAccelerated()
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{
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return accelerated;
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}
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/**
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* Returns whether or not the image buffer's resources are volatile,
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* meaning that they can be reclaimed by the graphics system at any
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* time.
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*
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* @return true if the image buffer's resources are volatile; false
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* otherwise
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*/
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public boolean isTrueVolatile()
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{
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return true;
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}
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/**
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* Clone this image capability descriptor.
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*
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* @return a clone of this image capability descriptor
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*/
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public Object clone()
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{
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try
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{
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return super.clone();
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}
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catch (CloneNotSupportedException e)
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{
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throw (Error) new InternalError().initCause(e);
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}
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}
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}
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