Examples of java.awt.Graphics.drawImage()

java.awt.Graphics.drawImage()
Draws as much of the specified image as is currently available. The image is drawn with its top-left corner at (x, y) in this graphics context's coordinate space. Transparent pixels in the image do not affect whatever pixels are already there.
This method returns immediately in all cases, even if the complete image has not yet been loaded, and it has not been dithered and converted for the current output device.
If the image has completely loaded and its pixels are no longer being changed, then drawImage returns true. Otherwise, drawImage returns false and as more of the image becomes available or it is time to draw another frame of animation, the process that loads the image notifies the specified image observer. @param img the specified image to be drawn. This method doesnothing if img is null. @param x the x coordinate. @param y the y coordinate. @param observer object to be notified as more of the image is converted. @return false if the image pixels are still changing;true otherwise. @see java.awt.Image @see java.awt.image.ImageObserver @see java.awt.image.ImageObserver#imageUpdate(java.awt.Image,int,int,int,int,int)

    if (myCurrentTile!=tileY) {
            int offsety = tileY*getTileHeight();
            BufferedImage tile = getChart(myTaskImage.getWidth(), offsety, getTileWidth(),getTileHeight(),  getWidth(), getHeight());
            Graphics g = tile.getGraphics();
            g.translate(0, -offsety);
            g.drawImage(myTaskImage,0,0,null);
            myCurrentRaster = tile.getRaster().createTranslatedChild(0, tileY*getTileHeight());
            myCurrentTile = tileY;
    }
    return myCurrentRaster;
    }

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                              new GrayFilter()));
                              UIUtil.waitFor(img, this);
                          }
                          
                          if (img != null) {
                              g.drawImage(img, px, py + ((itemHeight - img.getHeight(this)) / 2), this);
                              toff = imageTextGap + img.getWidth(this);
                          }
                      }
                      g.drawString(n, px + toff, py + fm.getHeight() - fm.getDescent() + ((itemHeight - fm.getHeight()) / 2));
                      py += itemHeight;

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        if (height != -1 && height != image.getHeight()) {
          int width = image.getWidth() * height / image.getHeight();
          // Create a scaled image not bound to original image to let the original image being garbage collected 
          BufferedImage scaledImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
          Graphics g = scaledImage.getGraphics();
          g.drawImage(image.getScaledInstance(width, height, Image.SCALE_SMOOTH), 0, 0, null);
          g.dispose();
          return new ImageIcon(scaledImage);
        } else {
          return new ImageIcon(image);
        }

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        BufferedImage offScreenImage = this.homeComponent3D.getOffScreenImage(
            2 * this.image.getWidth(), 2 * this.image.getHeight());


        checkLaunchingThreadIsntInterrupted();
        Graphics graphics = this.image.getGraphics();
        graphics.drawImage(offScreenImage.getScaledInstance(
            this.image.getWidth(), this.image.getHeight(), Image.SCALE_SMOOTH), 0, 0, null);
        graphics.dispose();
        checkLaunchingThreadIsntInterrupted();
        return this.image;
      } catch(InterruptedIOException ex) {

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        ((Graphics2D)memG).
          setRenderingHint(RenderingHints.KEY_ANTIALIASING,
                           RenderingHints.VALUE_ANTIALIAS_OFF);
      }


      g.drawImage(memImage, 0, 0, null);


    }
    isPainting = false;
  }

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    g.setClip(p);
    g.clipRect(oldClip.x, oldClip.y, oldClip.width, oldClip.height);
    
    // top border
    for (int i = x; i < x + width; i += imageWidth) {
      g.drawImage(topLeftImage, i, y, null);
    }
    // left border
    for (int i = y; i < y + height; i += imageHeight) {
      g.drawImage(topLeftImage, x, i, null);
    }

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    for (int i = x; i < x + width; i += imageWidth) {
      g.drawImage(topLeftImage, i, y, null);
    }
    // left border
    for (int i = y; i < y + height; i += imageHeight) {
      g.drawImage(topLeftImage, x, i, null);
    }
    
    // *** Clipping for bottom and right borders ***
    // We have the same number of vertices as before, so it's efficient to 
    // reuse the polygon

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    // tile border coincides to be inside the bottom border.
    int startY = y + height - borderWidth - (height - borderWidth) % imageHeight;
    int endY = y + height - height % imageHeight;
    for (int borderY = startY; borderY <= endY; borderY += imageHeight) {
      for (int i = x; i < x + width; i += imageWidth) {
        g.drawImage(bottomRightImage, i, borderY, null);
      }
    }
    // Right border. More than one x coordinate may be needed in case the
    // tile border coincides to be inside the right border.
    int startX = x + width - borderWidth - (width - borderWidth) % imageWidth;

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    // tile border coincides to be inside the right border.
    int startX = x + width - borderWidth - (width - borderWidth) % imageWidth;
    int endX = x + width - width % imageWidth;
    for (int borderX = startX; borderX <= endX; borderX += imageWidth) {
      for (int i = y; i < y + height; i += imageHeight) {
        g.drawImage(bottomRightImage, borderX, i, null);
      }
    }
    
    g.dispose();
  }

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    Image bg = createIconBackground(gc);
    
    // copy bg for drawing
    Image image = gc.createCompatibleImage(TITLEBAR_HEIGHT, TITLEBAR_HEIGHT, Transparency.OPAQUE);
    Graphics g = image.getGraphics();
    g.drawImage(bg, 0, 0, null);
    closeIcon = createCloseIcon(image);
    
    // now we can draw over the background image
    minimizeIcon = createMinimizeIcon(bg);
  }

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