Examples of java.awt.image.BufferedImage

java.awt.image.BufferedImage
The BufferedImage subclass describes an {@link java.awt.Image Image} with an accessible buffer of image data.A BufferedImage is comprised of a {@link ColorModel} and a{@link Raster} of image data.The number and types of bands in the {@link SampleModel} of theRaster must match the number and types required by the ColorModel to represent its color and alpha components. All BufferedImage objects have an upper left corner coordinate of (0, 0). Any Raster used to construct a BufferedImage must therefore have minX=0 and minY=0.
This class relies on the data fetching and setting methods of Raster, and on the color characterization methods of ColorModel. @see ColorModel @see Raster @see WritableRaster @version 10 Feb 1997

   * @param width target width
   * @param height target height
   * @return new BI
   */
  protected BufferedImage createBufferedImage(int width, int height) {
    BufferedImage image = ImageUtil.createCompatibleBufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
    ImageUtil.clearImage(image);
    return image;
  }

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  }


  private void init(float dotsPerPoint, int dotsPerPixel) {
    this.dotsPerPoint = dotsPerPoint;


    BufferedImage outputImage = ImageUtil.createCompatibleBufferedImage(DEFAULT_DOTS_PER_POINT, DEFAULT_DOTS_PER_POINT);
    outputDevice = new Java2DOutputDevice(outputImage);


    UserAgentCallback userAgent = new NaiveUserAgent();
        sharedContext = newSharedContext(dotsPerPixel, userAgent);
        layoutContext = newLayoutContext();

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            - raPath.y);
        mGhostRect.setRect(ptOffset.x, ptOffset.y,
            lbl2.getPreferredSize().width, lbl2.getPreferredSize().height);


        lbl2.setSize(lbl2.getPreferredSize());
        mGhostImage = new BufferedImage(lbl2.getWidth(), lbl2
            .getHeight(), BufferedImage.TYPE_INT_ARGB_PRE);


        mTreeImage = new BufferedImage(this.getWidth(), this.getHeight(),
            BufferedImage.TYPE_INT_ARGB_PRE);
        Graphics2D g2t = mTreeImage.createGraphics();
        this.paint(g2t);
        g2t.dispose();

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                .getWidth(), mGhostImage.getHeight());


            Rectangle2D target = (Rectangle2D) old.clone();
            target.add(mGhostRect);


            BufferedImage bf = new BufferedImage((int) target.getWidth(),
                (int) target.getHeight(), BufferedImage.TYPE_INT_ARGB_PRE);
            Graphics2D g2b = bf.createGraphics();


            int width = ((int) (mTreeImage.getWidth() - (target.getX() + target
                .getWidth()))) > 0 ? (int) target.getWidth()
                : (int) (mTreeImage.getWidth() - (target.getX()));
            int height = ((int) (mTreeImage.getHeight() - (target.getY() + target

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        if(!img_dir.mkdirs())
          throw new IOException("Cannot make directory: " + img_dir.getParent());
      }
    }
    //�ж�ͼ��Ĵ�С��������Ҫ���е���
    BufferedImage orig_portrait = (BufferedImage)ImageIO.read(pFile.getInputStream());
    int preview_width = Math.min(PORTRAIT_WIDTH, orig_portrait.getWidth());
    int preview_height= Math.min(PORTRAIT_HEIGHT,orig_portrait.getHeight());
    if(preview_width != orig_portrait.getWidth() || preview_height!=orig_portrait.getHeight()){
      ImageUtils.createPreviewImage(pFile.getInputStream(), img_path,
          preview_width, preview_height);
    }
    else{
      ImageUtils.writeToFile(pFile, img_path);

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          }


          String text = node.getNodeFormatter().format((ProgramItem)node.getUserObject());


          // use an image to be able to display HTML content on the node
          BufferedImage textImage = getImage(bounds);
          Graphics lg = textImage.getGraphics();


          mProgramLabel.setFont(tree.getFont());
          mProgramLabel.setForeground(g.getColor());
          mProgramLabel.setBackground(UIManager.getColor("Tree.background"));
          mProgramLabel.setText(text);

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     * @param bounds
     * @return BufferedImage
     */
    private BufferedImage getImage(Rectangle bounds) {
      GraphicsConfiguration gc = getGraphicsConfiguration();
      BufferedImage textImage = gc.createCompatibleImage(bounds.width, bounds.height, Transparency.TRANSLUCENT);
      return textImage;
    }

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        try {
            Java2DRenderer j2d = new Java2DRenderer(page, width);


            // this renders and returns the image, which is stored in the J2R; will not
            // be re-rendered, calls to getImage() return the same instance
            BufferedImage img = j2d.getImage();


            // write it out, full size, PNG
            // FSImageWriter instance can be reused for different ../images,
            // defaults to PNG
            FSImageWriter imageWriter = new FSImageWriter();

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            throws Exception {
        Document doc = XMLUtil.documentFromFile(xhtml);
        Graphics2DRenderer renderer = new Graphics2DRenderer();
        renderer.setDocument(doc, new File(xhtml).toURI().toURL().toString());


        BufferedImage buff = new BufferedImage(width, height, BufferedImage.TYPE_4BYTE_ABGR);
        Graphics2D g = (Graphics2D) buff.getGraphics();


        Dimension dim = new Dimension(width, height);
        renderer.layout(g, dim);
        renderer.render(g);

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import java.io.File;


public class Graphics2DRendererTest {


    public static void main(String[] args) throws Exception {
        BufferedImage img = Graphics2DRenderer.renderToImageAutoSize(new File("demos/splash/splash.html").toURI().toURL().toExternalForm(),
                700, BufferedImage.TYPE_INT_ARGB);
        ImageIO.write(img, "png", new File("test.png"));
    }

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