Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Rectangle;
import java.awt.RenderingHints;

import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JProgressBar;
import javax.swing.plaf.basic.BasicProgressBarUI;

public class Main extends JPanel {

    public Main() {
        JProgressBar jpb = new JProgressBar();
        jpb.setUI(new MyProgressUI());
        jpb.setForeground(Color.blue);
        jpb.setIndeterminate(true);
        this.add(jpb);

        JFrame f = new JFrame();
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.add(this);
        f.pack();
        f.setVisible(true);
    }

    public static void main(String[] args) {
        new Main();
    }
}

class MyProgressUI extends BasicProgressBarUI {
    Rectangle r = new Rectangle();

    @Override
    protected void paintIndeterminate(Graphics g, JComponent c) {
        Graphics2D g2d = (Graphics2D) g;
        g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
        r = getBox(r);
        g.setColor(progressBar.getForeground());
        g.fillOval(r.x, r.y, r.width, r.height);
    }
}