1 /*
   2  * Copyright (c) 2000, 2011, 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} if the object whose capabilities are
  47      * encapsulated in this {@code ImageCapabilities} 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} if the {@code VolatileImage}
  60      * described by this {@code ImageCapabilities} 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(e);
  78         }
  79     }
  80 
  81 }