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    1   /*
    2    * Copyright (c) 2000, 2001, Oracle and/or its affiliates. All rights reserved.
    3    * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
    4    *
    5    * This code is free software; you can redistribute it and/or modify it
    6    * under the terms of the GNU General Public License version 2 only, as
    7    * published by the Free Software Foundation.  Oracle designates this
    8    * particular file as subject to the "Classpath" exception as provided
    9    * by Oracle in the LICENSE file that accompanied this code.
   10    *
   11    * This code is distributed in the hope that it will be useful, but WITHOUT
   12    * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   13    * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
   14    * version 2 for more details (a copy is included in the LICENSE file that
   15    * accompanied this code).
   16    *
   17    * You should have received a copy of the GNU General Public License version
   18    * 2 along with this work; if not, write to the Free Software Foundation,
   19    * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   20    *
   21    * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
   22    * or visit www.oracle.com if you need additional information or have any
   23    * questions.
   24    */
   25   
   26   package java.awt;
   27   
   28   /**
   29    * Capabilities and properties of images.
   30    * @author Michael Martak
   31    * @since 1.4
   32    */
   33   public class ImageCapabilities implements Cloneable {
   34   
   35       private boolean accelerated = false;
   36   
   37       /**
   38        * Creates a new object for specifying image capabilities.
   39        * @param accelerated whether or not an accelerated image is desired
   40        */
   41       public ImageCapabilities(boolean accelerated) {
   42           this.accelerated = accelerated;
   43       }
   44   
   45       /**
   46        * Returns <code>true</code> if the object whose capabilities are
   47        * encapsulated in this <code>ImageCapabilities</code> can be or is
   48        * accelerated.
   49        * @return whether or not an image can be, or is, accelerated.  There are
   50        * various platform-specific ways to accelerate an image, including
   51        * pixmaps, VRAM, AGP.  This is the general acceleration method (as
   52        * opposed to residing in system memory).
   53        */
   54       public boolean isAccelerated() {
   55           return accelerated;
   56       }
   57   
   58       /**
   59        * Returns <code>true</code> if the <code>VolatileImage</code>
   60        * described by this <code>ImageCapabilities</code> can lose
   61        * its surfaces.
   62        * @return whether or not a volatile image is subject to losing its surfaces
   63        * at the whim of the operating system.
   64        */
   65       public boolean isTrueVolatile() {
   66           return false;
   67       }
   68   
   69       /**
   70        * @return a copy of this ImageCapabilities object.
   71        */
   72       public Object clone() {
   73           try {
   74               return super.clone();
   75           } catch (CloneNotSupportedException e) {
   76               // Since we implement Cloneable, this should never happen
   77               throw new InternalError();
   78           }
   79       }
   80   
   81   }

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