java.awt.image.MultiResolutionImage#getResolutionVariant()源码实例Demo

下面列出了java.awt.image.MultiResolutionImage#getResolutionVariant() 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。

源代码1 项目： tutorials 文件： MultiResultionImageUnitTest.java

@Test
public void baseMultiResImageTest() {
    int baseIndex = 1;
    int length = 4;
    BufferedImage[] resolutionVariants = new BufferedImage[length];
    for (int i = 0; i < length; i++) {
        resolutionVariants[i] = createImage(i);
    }
    MultiResolutionImage bmrImage = new BaseMultiResolutionImage(baseIndex, resolutionVariants);
    List<Image> rvImageList = bmrImage.getResolutionVariants();
    assertEquals("MultiResoltion Image shoudl contain the same number of resolution variants!", rvImageList.size(), length);

    for (int i = 0; i < length; i++) {
        int imageSize = getSize(i);
        Image testRVImage = bmrImage.getResolutionVariant(imageSize, imageSize);
        assertSame("Images should be the same", testRVImage, resolutionVariants[i]);
    }

}

源代码2 项目： openjdk-jdk9 文件： BaseMultiResolutionImageTest.java

static void testRVSizes() {

        int imageSize = getSize(1);

        double[][] sizeArray = {
            {-imageSize, imageSize},
            {2 * imageSize, -2 * imageSize},
            {Double.POSITIVE_INFINITY, imageSize},
            {Double.POSITIVE_INFINITY, -imageSize},
            {imageSize, Double.NEGATIVE_INFINITY},
            {-imageSize, Double.NEGATIVE_INFINITY},
            {Double.NEGATIVE_INFINITY, Double.POSITIVE_INFINITY},
            {Double.NaN, imageSize},
            {imageSize, Double.NaN},
            {Double.NaN, Double.NaN},
            {Double.POSITIVE_INFINITY, Double.NaN}
        };

        for (double[] sizes : sizeArray) {
            try {
                MultiResolutionImage mrImage = new BaseMultiResolutionImage(
                        0, createRVImage(0), createRVImage(1));
                mrImage.getResolutionVariant(sizes[0], sizes[1]);
            } catch (IllegalArgumentException ignored) {
                continue;
            }

            throw new RuntimeException("IllegalArgumentException is not thrown!");
        }
    }

源代码3 项目： openjdk-jdk9 文件： BadHiDPIIcon.java

private static BufferedImage getBufferedImage(Image image) {
    if (image instanceof MultiResolutionImage) {
        MultiResolutionImage mrImage = (MultiResolutionImage) image;
        return (BufferedImage) mrImage.getResolutionVariant(32, 32);
    }
    return (BufferedImage) image;
}

源代码4 项目： jdk8u_jdk 文件： BaseMultiResolutionImageTest.java

static void testRVSizes() {

        int imageSize = getSize(1);

        double[][] sizeArray = {
            {-imageSize, imageSize},
            {2 * imageSize, -2 * imageSize},
            {Double.POSITIVE_INFINITY, imageSize},
            {Double.POSITIVE_INFINITY, -imageSize},
            {imageSize, Double.NEGATIVE_INFINITY},
            {-imageSize, Double.NEGATIVE_INFINITY},
            {Double.NEGATIVE_INFINITY, Double.POSITIVE_INFINITY},
            {Double.NaN, imageSize},
            {imageSize, Double.NaN},
            {Double.NaN, Double.NaN},
            {Double.POSITIVE_INFINITY, Double.NaN}
        };

        for (double[] sizes : sizeArray) {
            try {
                MultiResolutionImage mrImage = new BaseMultiResolutionImage(
                        0, createRVImage(0), createRVImage(1));
                mrImage.getResolutionVariant(sizes[0], sizes[1]);
            } catch (IllegalArgumentException ignored) {
                continue;
            }

            throw new RuntimeException("IllegalArgumentException is not thrown!");
        }
    }

源代码5 项目： demo-java-x 文件： Images.java

public static void main(String[] args) throws IOException {
	MultiResolutionImage tokio = loadTokio();
	int desiredImageWidth = ThreadLocalRandom.current().nextInt(1500);
	Image variant = tokio.getResolutionVariant(desiredImageWidth, 1);

	System.out.printf("Width of image for %d: %d%n", desiredImageWidth, variant.getWidth(null));
}

源代码6 项目： openjdk-jdk9 文件： MultiResolutionImageTest.java

static void testToolkitMultiResolutionImage(Image image,
    boolean enableImageScaling) throws Exception {

    MediaTracker tracker = new MediaTracker(new JPanel());
    tracker.addImage(image, 0);
    tracker.waitForID(0);
    if (tracker.isErrorAny()) {
        throw new RuntimeException("Error during image loading");
    }

    final BufferedImage bufferedImage1x = new BufferedImage(IMAGE_WIDTH,
        IMAGE_HEIGHT, BufferedImage.TYPE_INT_RGB);
    Graphics2D g1x = (Graphics2D) bufferedImage1x.getGraphics();
    setImageScalingHint(g1x, false);
    g1x.drawImage(image, 0, 0, null);
    checkColor(bufferedImage1x.getRGB(3 * IMAGE_WIDTH / 4,
        3 * IMAGE_HEIGHT / 4), false);

    Image resolutionVariant = ((MultiResolutionImage) image).
        getResolutionVariant(2 * IMAGE_WIDTH, 2 * IMAGE_HEIGHT);

    if (resolutionVariant == null) {
        throw new RuntimeException("Resolution variant is null");
    }

    MediaTracker tracker2x = new MediaTracker(new JPanel());
    tracker2x.addImage(resolutionVariant, 0);
    tracker2x.waitForID(0);
    if (tracker2x.isErrorAny()) {
        throw new RuntimeException("Error during scalable image loading");
    }

    final BufferedImage bufferedImage2x = new BufferedImage(2 * IMAGE_WIDTH,
        2 * IMAGE_HEIGHT, BufferedImage.TYPE_INT_RGB);
    Graphics2D g2x = (Graphics2D) bufferedImage2x.getGraphics();
    setImageScalingHint(g2x, enableImageScaling);
    g2x.drawImage(image, 0, 0, 2 * IMAGE_WIDTH,
        2 * IMAGE_HEIGHT, 0, 0, IMAGE_WIDTH, IMAGE_HEIGHT, null);
    checkColor(bufferedImage2x.getRGB(3 * IMAGE_WIDTH / 2,
        3 * IMAGE_HEIGHT / 2), enableImageScaling);

    if (!(image instanceof MultiResolutionImage)) {
        throw new RuntimeException("Not a MultiResolutionImage");
    }

    MultiResolutionImage multiResolutionImage
        = (MultiResolutionImage) image;

    Image image1x = multiResolutionImage.getResolutionVariant(
        IMAGE_WIDTH, IMAGE_HEIGHT);
    Image image2x = multiResolutionImage.getResolutionVariant(
        2 * IMAGE_WIDTH, 2 * IMAGE_HEIGHT);

    if (image1x.getWidth(null) * 2 != image2x.getWidth(null)
        || image1x.getHeight(null) * 2 != image2x.getHeight(null)) {
        throw new RuntimeException("Wrong resolution variant size");
    }
}

源代码7 项目： jdk8u_jdk 文件： MultiResolutionImageTest.java

static void testToolkitMultiResolutionImage(Image image,
    boolean enableImageScaling) throws Exception {

    MediaTracker tracker = new MediaTracker(new JPanel());
    tracker.addImage(image, 0);
    tracker.waitForID(0);
    if (tracker.isErrorAny()) {
        throw new RuntimeException("Error during image loading");
    }

    final BufferedImage bufferedImage1x = new BufferedImage(IMAGE_WIDTH,
        IMAGE_HEIGHT, BufferedImage.TYPE_INT_RGB);
    Graphics2D g1x = (Graphics2D) bufferedImage1x.getGraphics();
    setImageScalingHint(g1x, false);
    g1x.drawImage(image, 0, 0, null);
    checkColor(bufferedImage1x.getRGB(3 * IMAGE_WIDTH / 4,
        3 * IMAGE_HEIGHT / 4), false);

    Image resolutionVariant = ((MultiResolutionImage) image).
        getResolutionVariant(2 * IMAGE_WIDTH, 2 * IMAGE_HEIGHT);

    if (resolutionVariant == null) {
        throw new RuntimeException("Resolution variant is null");
    }

    MediaTracker tracker2x = new MediaTracker(new JPanel());
    tracker2x.addImage(resolutionVariant, 0);
    tracker2x.waitForID(0);
    if (tracker2x.isErrorAny()) {
        throw new RuntimeException("Error during scalable image loading");
    }

    final BufferedImage bufferedImage2x = new BufferedImage(2 * IMAGE_WIDTH,
        2 * IMAGE_HEIGHT, BufferedImage.TYPE_INT_RGB);
    Graphics2D g2x = (Graphics2D) bufferedImage2x.getGraphics();
    setImageScalingHint(g2x, enableImageScaling);
    g2x.drawImage(image, 0, 0, 2 * IMAGE_WIDTH,
        2 * IMAGE_HEIGHT, 0, 0, IMAGE_WIDTH, IMAGE_HEIGHT, null);
    checkColor(bufferedImage2x.getRGB(3 * IMAGE_WIDTH / 2,
        3 * IMAGE_HEIGHT / 2), enableImageScaling);

    if (!(image instanceof MultiResolutionImage)) {
        throw new RuntimeException("Not a MultiResolutionImage");
    }

    MultiResolutionImage multiResolutionImage
        = (MultiResolutionImage) image;

    Image image1x = multiResolutionImage.getResolutionVariant(
        IMAGE_WIDTH, IMAGE_HEIGHT);
    Image image2x = multiResolutionImage.getResolutionVariant(
        2 * IMAGE_WIDTH, 2 * IMAGE_HEIGHT);

    if (image1x.getWidth(null) * 2 != image2x.getWidth(null)
        || image1x.getHeight(null) * 2 != image2x.getHeight(null)) {
        throw new RuntimeException("Wrong resolution variant size");
    }
}

方法所在类

java.awt.image.MultiResolutionImage