代号一个来自互联网来源的圆角图像

Question

但是我似乎不明白为什么在标签上调用setmask也不起作用。

   // Create MASK

    Image maskImage = Image.createImage(w, l);
    Graphics g = maskImage.getGraphics();
    g.setAntiAliased(true);
    g.setColor(0x000000);
    g.fillRect(0, 0, w, l);
    g.setColor(0xffffff);
    g.fillArc(0, 0, w, l, 0, 360);
    Object mask = maskImage.createMask();



    // GET IMAGE
    com.cloudinary.Cloudinary cloudinary = new com.cloudinary.Cloudinary(ObjectUtils.asMap(
            "cloud_name", "REMOVED",
            "api_key", "REMOVED",
            "api_secret", "REMOVED"));
    // Disable private CDN URLs as this doesn't seem to work with free accounts
    cloudinary.config.privateCdn = false;
    Image placeholder = Image.createImage(150, 150);
    EncodedImage encImage = EncodedImage.createFromImage(placeholder, false);
    Image img2 = cloudinary.url()
            .type("fetch") // Says we are fetching an image
            .format("jpg") // We want it to be a jpg
            .transformation(
                    new Transformation()
                    .radius("max").width(150).height(150).crop("thumb").gravity("faces").image(encImage, "http://upload.wikimedia.org/wikipedia/commons/4/46/Jennifer_Lawrence_at_the_83rd_Academy_Awards.jpg");

    Label label = new Label(img2);
    label.setMask(mask);  // also tried to do img2.applyMask(mask); before passing img2 

Answer 1

所以我尝试了各种各样的事情：

1）移除通过cloudinary设置的掩膜--这不起作用

2）将掩码应用于占位符&编码图像（正如预期的那样，这些掩码不会影响即将发布的最终版本）

    Label label = new Label();
    img2.applyMask(mask);  // If you remove this line , the image will no longer be displayed, I will only see a rounded white circle ! I am not sure what this is doing, it might be simply stalling the process until the image is downloaded? or maybe somehow calling repaint or revalidate
    label.setIcon( img2.applyMask(mask));

        //CREATE MASK
    Image maskImage = Image.createImage(w, l);
    Graphics g = maskImage.getGraphics();
    g.setAntiAliased(true);
    g.setColor(0x000000);
    g.fillRect(0, 0, w, l);
    g.setColor(0xffffff);
    g.fillArc(0, 0, w, l, 0, 360);
    Object mask = maskImage.createMask();

    //CONNECT TO CLOUDINARY 
    com.cloudinary.Cloudinary cloudinary = new com.cloudinary.Cloudinary(ObjectUtils.asMap(
            "cloud_name", "REMOVED",
            "api_key", "REMOVED",
            "api_secret", "REMOVED"));
    // Disable private CDN URLs as this doesn't seem to work with free accounts
    cloudinary.config.privateCdn = false;

    //CREATE IMAGE PLACEHOLDERS 
    Image placeholder = Image.createImage(w, l);
    EncodedImage encImage = EncodedImage.createFromImage(placeholder, false);

    //DOWNLOAD IMAGE
    Image img2 = cloudinary.url()
            .type("fetch") // Says we are fetching an image
            .format("jpg") // We want it to be a jpg
            .transformation(
                    new Transformation()
                    .crop("thumb").gravity("faces")
                    .image(encImage, url);


    // Add the image to a label and place it on the form.
    //GetCircleImage(img2);
    Label label = new Label();
    img2.applyMask(mask);   // If you remove this line , the image will no longer be displayed, I will only see a rounded white circle ! I am not sure what this is doing, it might be simply stalling the process until the image is downloaded? or maybe somehow calling repaint or revalidate
    label.setIcon( img2.applyMask(mask));