/*
 * A Java program that creates a custom component with its own renderer,
 * and demonstrates how to render regions.
 *
 * Ben Bederson, January 29, 2002
 */

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

public class BasicRegion extends JFrame {
    static public void main(String[] args) {
        new BasicRegion();
    }

    public BasicRegion() {
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        RegionCanvas canvas = new RegionCanvas();
        canvas.setPreferredSize(new Dimension(400, 400));

        getContentPane().add(canvas);
        pack();
        setVisible(true);
    }
}

class RegionCanvas extends JComponent {
    public void paintComponent(Graphics graphics) {
        Graphics2D g2 = (Graphics2D) graphics;

        g2.setColor(Color.white);
        g2.fillRect(getX(), getY(), getWidth(), getHeight());

        Paint paint = Color.blue;
        g2.setPaint(paint);
        Rectangle2D rect = new Rectangle2D.Double(10, 10, 100, 100);
        g2.fill(rect);

        Paint paint2 = new GradientPaint(100, 100, Color.red, 200, 200, Color.blue);
        Rectangle2D rect2 = new Rectangle2D.Double(100, 100, 100, 100);
        g2.setPaint(paint2);
        g2.fill(rect2);
    }
}