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  • 将Image转化为BufferImage

    public class BufferedImageBuilder {

    private static final int DEFAULT_IMAGE_TYPE = BufferedImage.TYPE_INT_RGB;

    public BufferedImage bufferImage(Image image) {
    return bufferImage(image, DEFAULT_IMAGE_TYPE);
    }

    public BufferedImage bufferImage(Image image, int type) {
    BufferedImage bufferedImage = new BufferedImage(image.getWidth(null), image.getHeight(null), type);
    Graphics2D g = bufferedImage.createGraphics();
    g.drawImage(image, null, null);
    waitForImage(bufferedImage);
    return bufferedImage;
    }

    private void waitForImage(BufferedImage bufferedImage) {
    final ImageLoadStatus imageLoadStatus = new ImageLoadStatus();
    bufferedImage.getHeight(new ImageObserver() {
    public boolean imageUpdate(Image img, int infoflags, int x, int y, int width, int height) {
    if (infoflags == ALLBITS) {
    imageLoadStatus.heightDone = true;
    return true;
    }
    return false;
    }
    });
    bufferedImage.getWidth(new ImageObserver() {
    public boolean imageUpdate(Image img, int infoflags, int x, int y, int width, int height) {
    if (infoflags == ALLBITS) {
    imageLoadStatus.widthDone = true;
    return true;
    }
    return false;
    }
    });
    while (!imageLoadStatus.widthDone && !imageLoadStatus.heightDone) {
    try {
    Thread.sleep(300);
    } catch (InterruptedException e) {

    }
    }
    }

    class ImageLoadStatus {

    public boolean widthDone = false;
    public boolean heightDone = false;
    }

    }

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  • 原文地址:https://www.cnblogs.com/mafeng/p/4460617.html
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