/* * @(#)Rotate.java	1.26 04/07/26 *  * Copyright (c) 2004 Sun Microsystems, Inc. All Rights Reserved. *  * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: *  * -Redistribution of source code must retain the above copyright notice, this *  list of conditions and the following disclaimer. *  * -Redistribution in binary form must reproduce the above copyright notice,  *  this list of conditions and the following disclaimer in the documentation *  and/or other materials provided with the distribution. *  * Neither the name of Sun Microsystems, Inc. or the names of contributors may  * be used to endorse or promote products derived from this software without  * specific prior written permission. *  * This software is provided "AS IS," without a warranty of any kind. ALL  * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING * ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE * OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN MIDROSYSTEMS, INC. ("SUN") * AND ITS LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE * AS A RESULT OF USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS * DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST  * REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL,  * INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY  * OF LIABILITY, ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE,  * EVEN IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. *  * You acknowledge that this software is not designed, licensed or intended * for use in the design, construction, operation or maintenance of any * nuclear facility. *//* * @(#)Rotate.java	1.23 03/01/23 */package java2d.demos.Transforms;import java.awt.*;import java.awt.event.*;import java.awt.geom.Ellipse2D;import java.awt.geom.AffineTransform;import javax.swing.*;import java2d.ControlsSurface;import java2d.CustomControls;/** * Rotate ellipses with controls for increment and emphasis. * Emphasis is defined as which ellipses have a darker color and thicker stroke. */public class Rotate extends ControlsSurface {    protected double increment = 5.0;    protected int emphasis = 9;    public Rotate() {        setBackground(Color.white);        setControls(new Component[] { new DemoControls(this) });    }    public void render(int w, int h, Graphics2D g2) {        int size = Math.min(w, h);        float ew = size/4;        float eh = size-20;        Ellipse2D ellipse = new Ellipse2D.Float(-ew/2, -eh/2, ew, eh);        for (double angdeg = 0; angdeg < 360; angdeg+=increment) {            if (angdeg % emphasis == 0) {                g2.setColor(Color.gray);                g2.setStroke(new BasicStroke(2.0f));            } else {                g2.setColor(Color.lightGray);                g2.setStroke(new BasicStroke(0.5f));            }            AffineTransform at = AffineTransform.getTranslateInstance(w/2, h/2);            at.rotate(Math.toRadians(angdeg));            g2.draw(at.createTransformedShape(ellipse));        }        g2.setColor(Color.blue);        ellipse.setFrame(w/2-10,h/2-10,20,20);        g2.fill(ellipse);        g2.setColor(Color.gray);        g2.setStroke(new BasicStroke(6));        g2.draw(ellipse);        g2.setColor(Color.yellow);        g2.setStroke(new BasicStroke(4));        g2.draw(ellipse);        g2.setColor(Color.black);        g2.drawString("Rotate", 5, 15);    }    public static void main(String s[]) {        createDemoFrame(new Rotate());    }    static class DemoControls extends CustomControls implements ActionListener {        Rotate demo;        JTextField tf1, tf2;        public DemoControls(Rotate demo) {            super(demo.name);            this.demo = demo;            JLabel l = new JLabel("Increment:");            l.setForeground(Color.black);            add(l);            add(tf1 = new JTextField("5.0"));            tf1.setPreferredSize(new Dimension(30,24));            tf1.addActionListener(this);            add(l = new JLabel("  Emphasis:"));            l.setForeground(Color.black);            add(tf2 = new JTextField("9"));            tf2.setPreferredSize(new Dimension(30,24));            tf2.addActionListener(this);        }        public void actionPerformed(ActionEvent e) {            try {                 if (e.getSource().equals(tf1)) {                    demo.increment = Double.parseDouble(tf1.getText().trim());                    if (demo.increment < 1.0) {                        demo.increment = 1.0;                    }                } else {                    demo.emphasis = Integer.parseInt(tf2.getText().trim());                }                demo.repaint();            } catch (Exception ex) {}        }        public Dimension getPreferredSize() {            return new Dimension(200,39);        }        public void run() {            Thread me = Thread.currentThread();            while (thread == me) {                for (int i = 3; i < 13; i+=3) {                    try {                        thread.sleep(4444);                    } catch (InterruptedException e) { return; }                    tf1.setText(String.valueOf(i));                    demo.increment = i;                    demo.repaint();                }            }            thread = null;        }    } // End DemoControls class} // End Rotate class