Examples of java.awt.Graphics2D.drawImage()

java.awt.Graphics2D.drawImage()
Renders an image, applying a transform from image space into user space before drawing. The transformation from user space into device space is done with the current Transform in the Graphics2D. The specified transformation is applied to the image before the transform attribute in the Graphics2D context is applied. The rendering attributes applied include the Clip, Transform, and Composite attributes. Note that no rendering is done if the specified transform is noninvertible. @param img the specified image to be rendered. This method does nothing if img is null. @param xform the transformation from image space into user space @param obs the {@link ImageObserver}to be notified as more of the Image is converted @return true if the Image is fully loaded and completely rendered, or if it's null; false if the Image is still being loaded. @see #transform @see #setTransform @see #setComposite @see #clip @see #setClip

       * Render the resultant image to our new rotatedImage buffer,
       * applying the AffineTransform that we calculated above during
       * rendering so the pixels from the old position to the new
       * transposed positions are mapped correctly.
       */
      g2d.drawImage(result, tx, null);
      g2d.dispose();


      /*
       * Before re-assigning the new result to be returned to our rotated
       * image, explicitly notify the VM that you are done with any

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    Graphics2D resultGraphics = result.createGraphics();


    // Scale the image to the new buffer using the specified rendering hint.
    resultGraphics.setRenderingHint(RenderingHints.KEY_INTERPOLATION,
        interpolationHintValue);
    resultGraphics.drawImage(src, 0, 0, targetWidth, targetHeight, null);


    // Just to be clean, explicitly dispose our temporary graphics object
    resultGraphics.dispose();


    // Return the scaled image to the caller.

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                treetable.paintImmediately(ghostImageRect.getBounds());
                // And remember where we are about to draw the new ghost image
                ghostImageRect.setRect(pt.x - offsetPoint.x, pt.y
                        - offsetPoint.y, ghostImage.getWidth(), ghostImage
                        .getHeight());
                g2.drawImage(ghostImage, AffineTransform.getTranslateInstance(
                        ghostImageRect.getX(), ghostImageRect.getY()), null);
            } else {
                // Just rub out the last cue line
                treetable.paintImmediately(cueLineRect.getBounds());
            }

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    Graphics2D g2 = (Graphics2D) result.getGraphics();


    g2.setColor(Color.WHITE);
    g2.fillRect(0, 0, result.getWidth(), result.getHeight());
    
    g2.drawImage(image, scaleTransform, null);


    return result;
  }


  private static BufferedImage scale(BufferedImage image, int height, int width, int quality, int imageType) {

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    g2.fillRect(0, 0, width, height);
    
    Canvas canvas = new Canvas();
    Image tImage = image.getScaledInstance(width, height, quality);


    g2.drawImage(tImage, 0, 0, canvas);


    return result;
  }


  /*public static void scaleAndWriteImage(String inImgURL, String outImgURL, String format, double xFactor, double yFactor ) throws IOException{

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                     BufferedImage.TYPE_INT_ARGB : BufferedImage.TYPE_INT_RGB;                  
               BufferedImage bImg = new BufferedImage(width, height, imageType);
               Graphics2D g2d = bImg.createGraphics();
               g2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION,
                     RenderingHints.VALUE_INTERPOLATION_BICUBIC);
               g2d.drawImage(icon.getImage(), 0, 0, width, height, null);
               g2d.dispose();
   
               String formatName = "";
               if (contentType != null && contentType.indexOf("png") != -1)
                  formatName = "png";

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        BufferedImage subimage = image.getSubimage(leftx, topy, width, height);
        int h = (int) (subimage.getHeight() / reduceFactor);
        int w = (int) (subimage.getWidth() / reduceFactor);


        g2d.drawImage(subimage, 0, 0, w, h, null);
        // int imgw = (int)pageFormat.getImageableWidth();
        // int imgh = (int)pageFormat.getImageableHeight();
        //    
        // int width=imgw+x<image.getWidth()?imgw:image.getWidth()-x;
        // int height=imgh+y<image.getHeight()?imgh:image.getHeight()-y;

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      // Center the 3D view in component
      g2D.translate(pageFormat.getImageableX() + (pageFormat.getImageableWidth() - printSize) / 2, 
          pageFormat.getImageableY() + (pageFormat.getImageableHeight() - printSize) / 2);
      double scale = printSize / printedImageSize;
      g2D.scale(scale, scale);
      g2D.drawImage(this.printedImage, 0, 0, this);
      g2D.dispose();


      return PAGE_EXISTS;
    } else {
      return NO_SUCH_PAGE;

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      if (composite != null) {
        g2D.setComposite(composite);
      }
      // Draw image with composite
      g2D.drawImage(this.image, 0, 0, this);
      g2D.setComposite(oldComposite);
      g2D.setTransform(oldTransform);
    }
  }

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        throw new IllegalArgumentException("Can't read pattern image " + pattern.getName());
      }
    }
    // Draw the pattern image with foreground color
    final int foregroundColorRgb = foregroundColor.getRGB() & 0xFFFFFF;
    imageGraphics.drawImage(Toolkit.getDefaultToolkit().createImage(
        new FilteredImageSource(patternImage.getSource(),
        new RGBImageFilter() {
          {
            this.canFilterIndexColorModel = true;
          }

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