ImageCapabilities


1   /*
2    * @(#)ImageCapabilities.java   1.6 03/12/19
3    *
4    * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
5    * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
6    */
7   
8   package java.awt;
9   
10  /**
11   * Capabilities and properties of images.
12   * @author Michael Martak
13   * @since 1.4
14   */
15  public class ImageCapabilities implements Cloneable   {
16      
17      private boolean accelerated = false;
18      
19      /**
20       * Creates a new object for specifying image capabilities.
21       * @param accelerated whether or not an accelerated image is desired
22       */
23      public ImageCapabilities(boolean accelerated) {
24          this.accelerated = accelerated;
25      }
26      
27      /**
28       * Returns <code>true</code> if the object whose capabilities are
29       * encapsulated in this <code>ImageCapabilities</code> can be or is
30       * accelerated. 
31       * @return whether or not an image can be, or is, accelerated.  There are
32       * various platform-specific ways to accelerate an image, including
33       * pixmaps, VRAM, AGP.  This is the general acceleration method (as
34       * opposed to residing in system memory).
35       */
36      public boolean isAccelerated() {
37          return accelerated;
38      }
39      
40      /**
41       * Returns <code>true</code> if the <code>VolatileImage</code>
42       * described by this <code>ImageCapabilities</code> can lose
43       * its surfaces.
44       * @return whether or not a volatile image is subject to losing its surfaces
45       * at the whim of the operating system.
46       */
47      public boolean isTrueVolatile() {
48          return false;
49      }
50  
51      /**
52       * @return a copy of this ImageCapabilities object.
53       */
54      public Object   clone() {
55          try {
56              return super.clone();
57          } catch (CloneNotSupportedException   e) {
58              // Since we implement Cloneable, this should never happen
59              throw new InternalError  ();
60          }
61      }
62  
63  }
64
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