35 * of this interface if it is implemented on the argument {@code Image} object
36 * in order to choose the best representation to use for each rendering operation.
37 * <p>
38 * The {@code MultiResolutionImage} interface should be implemented by any
39 * subclass of {@code java.awt.Image} whose instances are intended to provide
40 * image resolution variants according to the given image width and height.
41 * For convenience, toolkit images obtained from
42 * {@code Toolkit.getImage(String name)} and {@code Toolkit.getImage(URL url)}
43 * will implement this interface on platforms that support naming conventions
44 * for resolution variants of stored image media and the
45 * {@code AbstractMultiResolutionImage} and {@code BaseMultiResolutionImage}
46 * classes are provided to facilitate easy construction of custom multi-resolution
47 * images from a list of related images.
48 *
49 * @see java.awt.Image
50 * @see java.awt.image.AbstractMultiResolutionImage
51 * @see java.awt.image.BaseMultiResolutionImage
52 * @see java.awt.Toolkit#getImage(java.lang.String filename)
53 * @see java.awt.Toolkit#getImage(java.net.URL url)
54 *
55 * @since 1.9
56 */
57 public interface MultiResolutionImage {
58
59 /**
60 * Gets a specific image that is the best variant to represent
61 * this logical image at the indicated size.
62 *
63 * @param destImageWidth the width of the destination image, in pixels.
64 * @param destImageHeight the height of the destination image, in pixels.
65 * @return image resolution variant.
66 * @throws IllegalArgumentException if {@code destImageWidth} or
67 * {@code destImageHeight} is less than or equal to zero, infinity,
68 * or NaN.
69 *
70 * @since 1.9
71 */
72 Image getResolutionVariant(double destImageWidth, double destImageHeight);
73
74 /**
75 * Gets a readable list of all resolution variants.
76 * The list must be nonempty and contain at least one resolution variant.
77 * <p>
78 * Note that many implementations might return an unmodifiable list.
79 * <p>
80 * @return list of resolution variants.
81 * @since 1.9
82 */
83 public List<Image> getResolutionVariants();
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35 * of this interface if it is implemented on the argument {@code Image} object
36 * in order to choose the best representation to use for each rendering operation.
37 * <p>
38 * The {@code MultiResolutionImage} interface should be implemented by any
39 * subclass of {@code java.awt.Image} whose instances are intended to provide
40 * image resolution variants according to the given image width and height.
41 * For convenience, toolkit images obtained from
42 * {@code Toolkit.getImage(String name)} and {@code Toolkit.getImage(URL url)}
43 * will implement this interface on platforms that support naming conventions
44 * for resolution variants of stored image media and the
45 * {@code AbstractMultiResolutionImage} and {@code BaseMultiResolutionImage}
46 * classes are provided to facilitate easy construction of custom multi-resolution
47 * images from a list of related images.
48 *
49 * @see java.awt.Image
50 * @see java.awt.image.AbstractMultiResolutionImage
51 * @see java.awt.image.BaseMultiResolutionImage
52 * @see java.awt.Toolkit#getImage(java.lang.String filename)
53 * @see java.awt.Toolkit#getImage(java.net.URL url)
54 *
55 * @since 9
56 */
57 public interface MultiResolutionImage {
58
59 /**
60 * Gets a specific image that is the best variant to represent
61 * this logical image at the indicated size.
62 *
63 * @param destImageWidth the width of the destination image, in pixels.
64 * @param destImageHeight the height of the destination image, in pixels.
65 * @return image resolution variant.
66 * @throws IllegalArgumentException if {@code destImageWidth} or
67 * {@code destImageHeight} is less than or equal to zero, infinity,
68 * or NaN.
69 *
70 * @since 9
71 */
72 Image getResolutionVariant(double destImageWidth, double destImageHeight);
73
74 /**
75 * Gets a readable list of all resolution variants.
76 * The list must be nonempty and contain at least one resolution variant.
77 * <p>
78 * Note that many implementations might return an unmodifiable list.
79 * <p>
80 * @return list of resolution variants.
81 * @since 9
82 */
83 public List<Image> getResolutionVariants();
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