/*
 * A Java program that demonstrates use of transforms
 *
 * Ben Bederson, April 2, 2002
 */

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

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

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

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

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

class TransformCanvas extends JComponent {
    public void paintComponent(Graphics graphics) {
        Graphics2D g2 = (Graphics2D) graphics;
	AffineTransform tempAT = g2.getTransform();
	AffineTransform at = new AffineTransform();

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

	g2.setColor(Color.red);
	g2.fillRect(0, 0, 20, 20);


	tempAT.rotate(30.0 * Math.PI / 180.0);
	g2.setTransform(tempAT);
	g2.setColor(Color.orange);
	g2.fillRect(0, 0, 20, 20);

	tempAT.translate(100, 0);
	g2.setTransform(tempAT);
	g2.setColor(Color.blue);
	g2.fillRect(0, 0, 20, 20);
    }
}