Re: changing the color of JProgressBar

From:

Eric Sosman <Eric.Sosman@sun.com>

Newsgroups:

comp.lang.java.programmer

Date:

Fri, 21 Dec 2007 13:40:11 -0500

Message-ID:

<1198262411.913988@news1nwk>

Aryeh M. Friedman wrote:

On Dec 20, 4:53 pm, HightowerC <chris.highto...@gmail.com> wrote:

On Dec 20, 3:12 pm, "Aryeh M. Friedman" <Aryeh.Fried...@gmail.com>
wrote:

I have a JProgressBar that I want to be green if the underlaying
process has no errors and red if it does. I can't seem to find a way
of setting the color of the bar in the raw JProgressBar class... ideas?

Try JProgressBar.setForeground(Color c)

No effect

     Works for me.

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

class Bar extends JFrame {

     public static void main(String args[]) {
         EventQueue.invokeLater(new Runnable() {
             public void run() {
                 new Bar().setVisible(true);
             }
         });
     }

     private final JProgressBar pbar = new JProgressBar(0, 10);
     private final JButton butt = new JButton("Click Me");

     private Bar() {
         butt.addActionListener(new ActionListener() {
             public void actionPerformed(ActionEvent evt) {
                 BoundedRangeModel model = pbar.getModel();
                 int value = model.getValue();
                 if (value == 3)
                     pbar.setForeground(Color.GREEN);
                 else if (value == 7)
                     pbar.setForeground(Color.RED);
                 model.setValue(value + 1);
             }
         });

         setLayout(new FlowLayout());
         add(pbar);
         add(butt);
         pack();
     }
}

--
Eric.Sosman@sun.com