Question

I would like to add java’s default questionIcon to a corner button in a Scrollpane, however the image doesn’t fit correctly (since the button is very small). What should i do to make the icon fit correctly?

Here is the code, It works, so you can try it out and see for yourselfs the problem 🙂

import javax.swing.*;

public class CornerButton extends JFrame 
{
    public CornerButton()
    {

        JTextArea area = new JTextArea(20, 20);
        JScrollPane scroll = new JScrollPane(area);
        JButton btn = new JButton(UIManager.getIcon("OptionPane.questionIcon"));
        scroll.setCorner(ScrollPaneConstants.LOWER_RIGHT_CORNER, btn);
        this.add(scroll);
    }

    public static void main(String[] args) 
    {
        // TODO Auto-generated method stub
        CornerButton mainFrame = new CornerButton();

        mainFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        mainFrame.setVisible(true);
        mainFrame.setSize(200,200);
    }
}

NB. I posted the same question on Sun’s forums but no one answered, hope I find some help from here 🙂

thanks in advance.

Answer 1

You could try increasing the width of the JScrollBars so that the button has more room to be displayed. For example:

scroll.getVerticalScrollBar().setPreferredSize(new Dimension(30, 30));
scroll.getHorizontalScrollBar().setPreferredSize(new Dimension(30, 30));