How to render a internal image on a swing component using html?

Question

I have the following code:

public static void main(String[] args) {
    JFrame frm = new JFrame();
    JEditorPane pane = new JEditorPane(\"text/html\", \"&l         


        

Answer 1

An other way to hook an ImageView:

public class Base64ImageView extends ImageView {

private URL url;

public Base64ImageView(Element elem) {
    super(elem);

    populateImage();
}

private void populateImage() {
    Dictionary cache = (Dictionary) getDocument()
            .getProperty("imageCache");
    if (cache == null) {
        cache = new Hashtable();
        getDocument().putProperty("imageCache", cache);
    }

    URL src = getImageURL();
    cache.put(src, loadImage());

}

private Image loadImage() {
    String b64 = getBASE64Image();
    BufferedImage newImage = null;
    ByteArrayInputStream bais = null;
    try {
        bais = new ByteArrayInputStream(
                Base64.decodeBase64(b64.getBytes()));
        newImage = ImageIO.read(bais);
    } catch (Throwable ex) {
    }
    return newImage;
}

private String getBASE64Image() {
    String src = (String) getElement().getAttributes()
            .getAttribute(HTML.Attribute.SRC);
    if (!isBase64Encoded(src)) {
        return null;
    }
    return src.substring(src.indexOf("base64,") + 7, src.length() - 1);
}

@Override
public URL getImageURL() {
    String src = (String) getElement().getAttributes()
            .getAttribute(HTML.Attribute.SRC);
    if (isBase64Encoded(src)) {

        this.url = Base64ImageView.class.getProtectionDomain()
                .getCodeSource().getLocation();

        return this.url;
    }
    return super.getImageURL();
}

private boolean isBase64Encoded(String src) {
    return src != null && src.contains("base64,");
}

}