Image Filter problems

[Terence Doyle]

HI,
I'm having trouble with displaying part of an image in an applet. This is the code I'm trying:
[code]
// Image2 is declared elsewhere
Image2 = getImage( getDocumentBase() , "palm1.jpg" ) ;
Image2.CropImageFilter(xpos-20, ypos -20, 40, 40 );
[end of code]
The error message I get is:
cannot resolve symbol
symbol : method CropImageFilter(int,int,int,int)
location : java.awt.Image
Image2.CropImageFilter(xpos-20, ypos -20, 40, 40 );
^
Any ideas??
Thanks,
Terry

[Nathan Pruett]

CropImageFilter is not a method of the java.awt.Image class... it's a class in the java.awt.image package...

Here's an example program that shows how to use it... ( Replace "Washu.gif" with whatever image you are using... )

import java.awt.*;
import java.awt.event.*;
import java.awt.image.*;
 
public class ImageCropper extends Frame
{
    ImagePanel p1, p2;
 
    public ImageCropper()
    {
        setSize( 400, 400 );
        addWindowListener( new WindowAdapter() {
            public void windowClosing( WindowEvent e )
            {
                System.exit( 0 );
            }
        } );
 
        Image im = Toolkit.getDefaultToolkit().getImage( "Washu.gif" );
        ImageFilter cropFilter = new CropImageFilter( 25, 25, 100, 100 );
        Image croppedIm = createImage( new FilteredImageSource( im.getSource(), cropFilter ) );
 
        p1 = new ImagePanel( im );
        p2 = new ImagePanel( croppedIm );
 
        add( p1, BorderLayout.EAST );
        add( p2, BorderLayout.WEST );
 
        setVisible( true );
    }
 
    public static void main( String[] args )
    {
        new ImageCropper();
    }
 
    private class ImagePanel extends Panel
    {
        Image i;
 
        ImagePanel( Image i )
        {
            setImage( i );
        }
 
        public void paint( Graphics g )
        {
            g.drawImage( i, 0, 0, this );
        }
 
        public void setImage( Image i )
        {
            MediaTracker mt = new MediaTracker( this );
            mt.addImage( i, 0 );
            try
            {
                mt.waitForAll();
            }
            catch( InterruptedException x )
            {
                System.err.println( "MediaTracker interrupted!" );
            }
 
            this.i = i;
        }
 
        public Dimension getPreferredSize()
        {
            return( new Dimension( i.getWidth( this ), i.getHeight( this ) ) );
        }
    }
}

-Nate