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Thread: Creating button from image and selecting clickable area

  1. #1
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    Default Creating button from image and selecting clickable area

    Maybe it is not possible, but i'm just wonderring, if it's possible and if there is an easy to do this : i have a button with icon, and my icon is in circle shape, but button is quadratic, so i would like to leave visible only icon, and make clickable only the icon, not the whole hidden button. Is it possible ? And if it is, maybe there is another easy way to do this ?
    I.e., i have a button http://s23.postimg.org/bf7n6j397/aaa.png , red is my icon, and blue is the rest of the button, and want to make a blue area unclickable, only red would act as a button. The point is that i want a circle button.

    My code is something like that :

    import javax.swing.JButton;
    import javax.swing.ImageIcon;
    import java.awt.Insets;
     
    class ImageButton extends JButton {
     
      public ImageButton(String img) {
        this(new ImageIcon(img));
      }
     
      public ImageButton(ImageIcon icon) {
        setIcon(icon);
        setMargin(new Insets(0, 0, 0, 0));
        setIconTextGap(0);
        setBorderPainted(false);
        setOpaque(false);
        setBorder(null);
        setText(null);
        setSize(icon.getImage().getWidth(null), icon.getImage().getHeight(null));
      }
     
    }
     
    final ImageButton button = new ImageButton("http://www.javaprogrammingforums.com/images/Default.png");


  2. #2
    Crazy Cat Lady KevinWorkman's Avatar
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    Default Re: Creating button from image and selecting clickable area

    Check out the API for the JButton class for useful functions including setting the border and the background. If that doesn't work, you can always provide your own custom UI or extend JButton.

    --- Update ---

    Edit: I see what you're doing now. You might want to think about overriding the getBounds() function so it only returns the area of your image.
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