Rotate Image Created with createImage() ?

Question

I've been looking around online for a way to do this, but so far the only things I have found are 50+ lines of code. Surely there is a simple way to rotate an image created with the createImage() function?
Here's some example code with all the tedious stuff already written. Can someone show me a simple way to rotate my image?
import java.net.*;
import java.awt.*;
import java.awt.geom.*;
import java.awt.event.*;
import javax.swing.*;
public class RotImg extends JApplet implements MouseListener {
          URL base;
          MediaTracker mt;
          Image myimg;
     public void init() {
          try{ mt = new MediaTracker(this);
               base = getCodeBase(); }
          catch(Exception ex){}
          myimg = getImage(base, "myimg.gif");
          mt.addImage(myimg, 1);
          try{ mt.waitForAll(); }
          catch(Exception ex){}
          this.addMouseListener(this);
     public void paint(Graphics g){
          super.paint(g);
          Graphics2D g2 = (Graphics2D) g;
          g2.drawImage(myimg, 20, 20, this);
     public void mouseClicked(MouseEvent e){
          //***** SOME CODE HERE *****//
          // Rotate myimg by 5 degrees
          //******** END CODE ********//
          repaint();
     public void mouseEntered(MouseEvent e){}
     public void mouseExited(MouseEvent e){}
     public void mousePressed(MouseEvent e){}
     public void mouseReleased(MouseEvent e){}
}Thanks very much for your help!
null

Answer 1

//  <applet code="RotationApplet" width="400" height="400"></applet>
//  use: >appletviewer RotationApplet.java
import java.awt.*;
import java.awt.event.*;
import java.awt.geom.AffineTransform;
import java.awt.image.BufferedImage;
import javax.swing.*;
public class RotationApplet extends JApplet {
    RotationAppletPanel rotationPanel;
    public void init() {
        Image image = loadImage();
        rotationPanel = new RotationAppletPanel(image);
        setLayout(new BorderLayout());
        getContentPane().add(rotationPanel);
    private Image loadImage() {
        String path = "images/cougar.jpg";
        Image image = getImage(getCodeBase(), path);
        MediaTracker mt = new MediaTracker(this);
        mt.addImage(image, 0);
        try {
            mt.waitForID(0);
        } catch(InterruptedException e) {
            System.out.println("loading interrupted");
        return image;
class RotationAppletPanel extends JPanel {
    BufferedImage image;
    double theta = 0;
    final double thetaInc = Math.toRadians(5.0);
    public RotationAppletPanel(Image img) {
        image = convert(img);
        addMouseListener(ml);
    public void rotate() {
        theta += thetaInc;
        repaint();
    protected void paintComponent(Graphics g) {
        super.paintComponent(g);
        Graphics2D g2 = (Graphics2D)g;
        g2.setRenderingHint(RenderingHints.KEY_INTERPOLATION,
                            RenderingHints.VALUE_INTERPOLATION_BICUBIC);
        double x = (getWidth() - image.getWidth())/2;
        double y = (getHeight() - image.getHeight())/2;
        AffineTransform at = AffineTransform.getTranslateInstance(x,y);
        at.rotate(theta, image.getWidth()/2, image.getHeight()/2);
        g2.drawRenderedImage(image, at);
    private BufferedImage convert(Image src) {
        int w = src.getWidth(this);
        int h = src.getHeight(this);
        int type = BufferedImage.TYPE_INT_RGB; // options
        BufferedImage dest = new BufferedImage(w,h,type);
        Graphics2D g2 = dest.createGraphics();
        g2.drawImage(src,0,0,this);
        g2.dispose();
        return dest;
    private MouseListener ml = new MouseAdapter() {
        public void mousePressed(MouseEvent e) {
            rotate();
}