inherritence problem

[twin yan]

hello all

well , basicly what i'm trying to do is adding another small method to an excisting java class (ImageIcon)
any ideas if it's possible and in which direction should i go ?
thanks to all helpers!

[Ivan Jozsef Balazs]

Did you write that class?

[twin yan]

well i tried this :

import java.awt.Image;
import javax.swing.ImageIcon;

public class img extends ImageIcon{
    
      public ImageIcon scale(ImageIcon img1, int width, int height) {
        Image img = img1.getImage();
        Image newimg = img.getScaledInstance(width, height, java.awt.Image.SCALE_SMOOTH);
        img1 = new ImageIcon(newimg);
        return img1;
        
    }
    
}

but no go, i'm missing something

[Ivan Jozsef Balazs]

What do you actually want to achieve?

[Bear Bibeault]

Maybe you could expand on what "no go" means?

[twin yan]

trying to get a method in there that will scale the photo to a certain height and width , the ImageIcon img1 is unneccesery just delete that

and i want that method to work on ImageIcons in my project
that's the goal

[Winston Gutkowski]

twin yan wrote:trying to get a method in there that will scale the photo to a certain height and width...
and i want that method to work on ImageIcons in my project ... that's the goal

OK, but I'm not quite sure how extending the class will help, unless you plan to make every Icon in your project "scaleable".

You've also written the method as if it was static. If you're writing it as an instance method for a 'ScalableIcon' class, then surely the method will act on the instance it's called on, so the signature should be:

public ImageIcon scale(int width, int height) {
   // code to scale 'this'
...

There's nothing basically wrong with what you've done, but to me it looks more like a static "utility" method; so if it was me, I'd probably put it in something like an 'ImageUtils' class.

HIH

Winston