1 /*

     2  * Copyright 2000-2001 Sun Microsystems, Inc.  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.  Sun designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    22  * CA 95054 USA or visit www.sun.com if you need additional information or

    23  * have any 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 }