[JAVA2D] getScaledInstance

[java2d]

Hello Forum !

Profiling one of our app I spotted Image.getScaledInstance() taking more time ! 
searched on web and found this:
http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6196792

I wrote utility method as follows for getting the same result as 
Image.getScaledInstance() but should be faster. it does not work :( shows half 
image in specified region !

public static javax.swing.ImageIcon getScaledImage(javax.swing.ImageIcon icon, 
int width, int height)
{
  // maintain the aspect ratio as in Image.getScaledInstance()

   int iconWidth = icon.getIconWidth();
   int iconHeight = icon.getIconHeight();
   if (width < 0) {
       if (height < 0) {
          width = iconWidth;
          height = iconHeight;
       }
       else {
          width = iconWidth * height / iconHeight;
       }
    }
    else if (height < 0) {
       height = iconHeight * width / iconWidth;
    }

    java.awt.Image image = icon.getImage();
    java.awt.image.BufferedImage bi = new java.awt.image.BufferedImage(width, 
height, java.awt.image.BufferedImage.TYPE_INT_RGB);

    java.awt.Graphics2D g2d = bi.createGraphics();
    g2d.setRenderingHint(java.awt.RenderingHints.KEY_INTERPOLATION, 
java.awt.RenderingHints.VALUE_INTERPOLATION_BILINEAR);
    g2d.drawImage(image, 0, 0, null);
    g2d.dispose();

    javax.swing.ImageIcon iImage = new javax.swing.ImageIcon(bi);
    return iImage;
}

Any ideas? Thank you.
Nitin
[Message sent by forum member 'nitinchauhan' (nitinchauhan)]

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