将Image转化为BufferImage

最新推荐文章于 2023-08-05 22:58:20 发布

转载最新推荐文章于 2023-08-05 22:58:20 发布 · 836 阅读

本文深入探讨了BufferedImageBuilder类的功能，展示了如何通过自定义参数构建高效的图像处理任务。重点介绍了宽度和高度等待机制，确保了图像加载的优化。

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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;
}

}