Java Source Codes

image viewer bean

import java.awt.*;
import java.io.*;
import javax.swing.*;

public class ImageViewerBean extends JPanel
implements Serializable
{ public void setFileName(String f)
{ fileName = f;
image = Toolkit.getDefaultToolkit().getImage(fileName);
MediaTracker tracker = new MediaTracker(this);
tracker.addImage(image, 0);
try { tracker.waitForID(0); }
catch (InterruptedException e) {}
repaint();
}

public String getFileName()
{ return fileName;
}

public void paint(Graphics g)
{ if (image == null)
{ g.drawRect(0, 0, getWidth() - 1, getHeight() - 1);
}
else
g.drawImage(image, 0, 0, this);
}

public Dimension getPreferredSize()
{ if (image == null)
return new Dimension(MINSIZE, MINSIZE);
return new Dimension(image.getWidth(null),
image.getHeight(null));
}

private static final int MINSIZE = 50;
private Image image = null;
private String fileName = "";
}

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