01 /*
02 * Copyright 2000-2001 Sun Microsystems, Inc. All Rights Reserved.
03 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
04 *
05 * This code is free software; you can redistribute it and/or modify it
06 * under the terms of the GNU General Public License version 2 only, as
07 * published by the Free Software Foundation. Sun designates this
08 * particular file as subject to the "Classpath" exception as provided
09 * 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 }
|