/*
 * Copyright (c) 2003 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:
 * 
 * -Redistributions of source code must retain the above copyright
 *  notice, this list of conditions and the following disclaimer.
 * 
 * -Redistribution in binary form must reproduct 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 AND ITS LICENSORS SHALL NOT
 * BE LIABLE FOR ANY DAMAGES OR LIABILITIES SUFFERED BY LICENSEE AS A RESULT
 * OF OR RELATING TO USE, MODIFICATION OR DISTRIBUTION OF THE 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 SOFTWARE, EVEN
 * IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
 * 
 * You acknowledge that Software is not designed, licensed or intended for
 * use in the design, construction, operation or maintenance of any nuclear
 * facility.
 */


package java2d;

import java.awt.*;
import java.awt.event.*;
import java.awt.geom.*;
import java.awt.image.BufferedImage;
import java.awt.image.DataBuffer;
import java.awt.font.*;
import javax.swing.*;
import javax.swing.border.*;
import javax.swing.table.*;
import javax.swing.event.*;
import java.util.Vector;
import java.util.List;
import java.util.Arrays;



/**
 * Introduction to the Java2Demo.  
 *
 * @version @(#)Intro.java  1.19 03/06/26
 * @author Brian Lichtenwalter
 */
public class Intro extends JPanel {

    static Color black = new Color(20, 20, 20); 
    static Color white = new Color(240, 240, 255); 
    static Color red = new Color(149, 43, 42);
    static Color blue = new Color(94, 105, 176); 
    static Color yellow = new Color(255, 255, 140);

    static Surface surface;
    private ScenesTable scenesTable;
    private boolean doTable;


    public Intro() {
        EmptyBorder eb = new EmptyBorder(80,110,80,110);
        BevelBorder bb = new BevelBorder(BevelBorder.LOWERED);
        setBorder(new CompoundBorder(eb,bb));
        setLayout(new BorderLayout());
        setBackground(Color.gray);
        setToolTipText("click for scene table");
        add(surface = new Surface());
        addMouseListener(new MouseAdapter() {
            public void mouseClicked(MouseEvent e) {
               removeAll();
               if ((doTable = !doTable)) {
                   setToolTipText("click for animation");
                   surface.stop();
                   if (scenesTable == null) {
                       scenesTable = new ScenesTable();
                   }
                   add(scenesTable);
               } else {
                   setToolTipText("click for scene table");
                   surface.start();
                   add(surface);
               }
               revalidate();
               repaint();
            }
        });
    }


    public void start() {
        if (!doTable) {
            surface.start();
        }
    }


    public void stop() {
        if (!doTable) {
           surface.stop();
        }
    }


    public static void main(String argv[]) {
        final Intro intro = new Intro();
        WindowListener l = new WindowAdapter() {
            public void windowClosing(WindowEvent e) {System.exit(0);}
            public void windowDeiconified(WindowEvent e) { intro.start(); }
            public void windowIconified(WindowEvent e) { intro.stop(); }
        };
        JFrame f = new JFrame("Java2D Demo - Intro");
        f.addWindowListener(l);
        f.getContentPane().add("Center", intro);
        f.pack();
        Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
        int w = 720;
        int h = 510;
        f.setLocation(screenSize.width/2 - w/2, screenSize.height/2 - h/2);
        f.setSize(w, h);
        f.setVisible(true);
        intro.start();
    }


    /**
     * ScenesTable is the list of scenes known to the Director.
     * Scene participation, scene name and scene pause amount columns.
     * Global animation delay for scene's steps.
     */
    static class ScenesTable extends JPanel implements ActionListener, ChangeListener {

        private JTable table;
        private TableModel dataModel;

        public ScenesTable() {
            setBackground(Color.white);
            setLayout(new BorderLayout());
            final String[] names = { "", "Scenes", "Pause" };
    
            dataModel = new AbstractTableModel() {
                public int getColumnCount() { return names.length; }
                public int getRowCount() { return surface.director.size();}
                public Object getValueAt(int row, int col) { 
                    Surface.Scene scene = (Surface.Scene) surface.director.get(row); 
                    if (col == 0) {
                        return scene.participate;
                    } else if (col == 1) {
                        return scene.name;
                    } else { 
                        return scene.pauseAmt;
                   }
                }
                public String getColumnName(int col) {return names[col]; }
                public Class getColumnClass(int c) {
                    return getValueAt(0, c).getClass();
                }
                public boolean isCellEditable(int row, int col) {
                    return col != 1 ? true : false;
                }
                public void setValueAt(Object aValue, int row, int col) {
                    Surface.Scene scene = (Surface.Scene) surface.director.get(row); 
                    if (col == 0) {
                        scene.participate = aValue;
                    } else if (col == 1) {
                        scene.name = aValue;
                    } else { 
                        scene.pauseAmt = aValue;
                    }
                }
            };
    
            table = new JTable(dataModel);
            TableColumn col = table.getColumn("");
            col.setWidth(16);
            col.setMinWidth(16);
            col.setMaxWidth(20);
            col = table.getColumn("Pause");
            col.setWidth(60);
            col.setMinWidth(60);
            col.setMaxWidth(60);
            table.sizeColumnsToFit(0);
        
            JScrollPane scrollpane = new JScrollPane(table);
            add(scrollpane);
 
            JPanel panel = new JPanel(new BorderLayout());
            JButton b = new JButton("Unselect All");
            b.setHorizontalAlignment(JButton.LEFT);
            Font font = new Font("serif", Font.PLAIN, 10);
            b.setFont(font);
            b.addActionListener(this);
            panel.add("West", b);

            JSlider slider = new JSlider(JSlider.HORIZONTAL, 0, 200, (int) surface.sleepAmt);
            slider.addChangeListener(this);
            TitledBorder tb = new TitledBorder(new EtchedBorder());
            tb.setTitleFont(font);
            tb.setTitle("Anim delay = " + String.valueOf(surface.sleepAmt) + " ms");
            slider.setBorder(tb);
            slider.setPreferredSize(new Dimension(140,40));
            slider.setMinimumSize(new Dimension(100,40));
            slider.setMaximumSize(new Dimension(180,40));
            panel.add("East", slider);

            add("South", panel);
        }


        public void actionPerformed(ActionEvent e) {
            JButton b = (JButton) e.getSource();
            b.setSelected(!b.isSelected());
            b.setText(b.isSelected() ? "Select All" : "Unselect All");
            for (int i = 0; i < surface.director.size(); i++) {
                Surface.Scene scene = (Surface.Scene) surface.director.get(i); 
                scene.participate = new Boolean(!b.isSelected());
            }
        table.tableChanged(new TableModelEvent(dataModel));
        }


        public void stateChanged(ChangeEvent e) {
            JSlider slider = (JSlider) e.getSource();
            int value = slider.getValue();
            TitledBorder tb = (TitledBorder) slider.getBorder();
            tb.setTitle("Anim delay = " + String.valueOf(value) + " ms");
            surface.sleepAmt = (long) value;
            slider.repaint();
        }
    }  // End ScenesTable class



    /**
     * Surface is the stage where the Director plays its scenes.
     */
    static class Surface extends JPanel implements Runnable {

        static Surface surf;
        static Image cupanim, java_logo;
        static BufferedImage bimg;
        public Director director;
        public int index;
        public long sleepAmt = 30;
        private Thread thread;


        public Surface() {
            surf = this;
            setBackground(black);
            setLayout(new BorderLayout());
            addMouseListener(new MouseAdapter() {
                public void mouseClicked(MouseEvent e) {
                    if (thread == null) start(); else stop();
                }
            });
            cupanim = DemoImages.getImage("cupanim.gif", this);
            java_logo = DemoImages.getImage("java_logo.png", this);
            director = new Director();
        }


        static FontMetrics getMetrics(Font font) {
            return surf.getFontMetrics(font);
        }


        public void paint(Graphics g) {
            Dimension d = getSize();
        if (d.width <= 0 || d.height <= 0) {
        return;
        }
            if (bimg == null || bimg.getWidth() != d.width || bimg.getHeight() != d.height) {
                bimg = getGraphicsConfiguration().createCompatibleImage(d.width, d.height);  
                // reset future scenes
                for (int i = index+1; i < director.size(); i++) {
                    ((Scene) director.get(i)).reset(d.width, d.height);
                }
            }

            Scene scene = (Scene) director.get(index);
            if (scene.index <= scene.length) {
                if (thread != null) {
                    scene.step(d.width, d.height);
                }

                Graphics2D g2 = bimg.createGraphics();
                g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, 
                                    RenderingHints.VALUE_ANTIALIAS_ON);
                g2.setBackground(getBackground());
                g2.clearRect(0, 0, d.width, d.height);
    
                scene.render(d.width, d.height, g2);

                if (thread != null) {
                    // increment scene.index after scene.render
                    scene.index++;      
                }
                g2.dispose();
            }
            g.drawImage(bimg, 0, 0, this);
        }



        public void start() {
            if (thread == null) {
                thread = new Thread(this);
                thread.setPriority(Thread.MIN_PRIORITY);
                thread.setName("Intro");
                thread.start();
            }
        }
    

        public synchronized void stop() {
            if (thread != null) {
                thread.interrupt();
            }
            thread = null;
            notifyAll();
        }


        public void reset() {
            index = 0;
            Dimension d = getSize();
            for (int i = 0; i < director.size(); i++) {
                ((Scene) director.get(i)).reset(d.width, d.height);
            }
        }

    
        public void run() {

            Thread me = Thread.currentThread();

            while (thread == me && !isShowing() || getSize().width <= 0) {
                try {
                    thread.sleep(500);
                } catch (InterruptedException e) { return; }
            }

            if (index == 0) {
                reset();
            }

            while (thread == me) {
                Scene scene = (Scene) director.get(index);
                if (((Boolean) scene.participate).booleanValue()) {
                    repaint();
                    try {
                        thread.sleep(sleepAmt);
                    } catch (InterruptedException e) { break; }
                    if (scene.index > scene.length) {
                        scene.pause(thread);
                        if (++index >= director.size()) {
                            reset();
                        }
                    }
                } else {
                   if (++index >= director.size()) {
                        reset();
                   }
                }
            }
            thread = null;
        }



        /**
         * Part is a piece of the scene.  Classes must implement Part
         * inorder to participate in a scene.
         */
        interface Part {
            public void reset(int newwidth, int newheight);
            public void step(int w, int h);
            public void render(int w, int h, Graphics2D g2);
            public int getBegin();
            public int getEnd();
        }



        /**
         * Director is the holder of the scenes, their names & pause amounts
         * between scenes.
         */
        static class Director extends Vector {

            GradientPaint gp = new GradientPaint(0,40,blue,38,2,black);
            Font f1 = new Font("serif", Font.PLAIN, 200);
            Font f2 = new Font("serif", Font.PLAIN, 120);
            Font f3 = new Font("serif", Font.PLAIN, 72);
            Object parts[][][] = {
               { { "J  -  scale text on gradient", "0" },
                 { new GpE(GpE.BURI, black, blue, 0, 20),
                   new TxE("J", f1, TxE.SCI, yellow, 2, 20) } },
               { { "2  -  scale & rotate text on gradient" , "0" },
                 { new GpE(GpE.BURI, blue, black, 0, 22),
                   new TxE("2", f1, TxE.RI | TxE.SCI, yellow, 2, 22) } },
               { { "D  -  scale text on gradient", "0" },
                 { new GpE(GpE.BURI, black, blue, 0, 20),
                   new TxE("D", f1, TxE.SCI, yellow, 2, 20) } },
               { { "Java2D  -  scale & rotate text on gradient", "1000" },
                 { new GpE(GpE.SIH, blue, black, 0, 40),
                   new TxE("Java2D", f2, TxE.RI | TxE.SCI, yellow, 0, 40) }},
               { { "Previous scene dither dissolve out", "0"},
                 { new DdE(0, 20, 1) }},
               { { "Graphics Features", "999" },
                 { new Temp(Temp.RECT, null, 0, 15),
                   new Temp(Temp.IMG, java_logo, 2, 15),
                   new Temp(Temp.RNA | Temp.INA, java_logo, 16, 130),
                   new Features(Features.GRAPHICS, 16, 130) }},
               { { "Java2D  -  texture text on gradient", "1000"},
                 { new GpE(GpE.WI, blue, black, 0, 20),
                   new GpE(GpE.WD, blue, black, 21, 40),
                   new TpE(TpE.OI | TpE.NF, black, yellow, 4, 0, 10),
                   new TpE(TpE.OD | TpE.NF, black, yellow, 4, 11, 20),
                   new TpE(TpE.OI | TpE.NF | TpE.HAF, black, yellow,5,21,40),
                   new TxE("Java2D", f2, 0, null, 0, 40) }},
               { { "Previous scene random close out", "0"},
                 { new CoE(CoE.RAND, 0, 20) } },
               { { "Text Features", "999" },
                 { new Temp(Temp.RECT, null, 0, 15),
                   new Temp(Temp.IMG, java_logo, 2, 15),
                   new Temp(Temp.RNA | Temp.INA, java_logo, 16, 130),
                   new Features(Features.TEXT, 16, 130) }},
               { { "Java2D  -  composite text on texture", "1000"},
                 { new TpE(TpE.RI, black, gp, 40, 0, 20),
                   new TpE(TpE.RD, black, gp, 40, 21, 40),
                   new TpE(TpE.RI, black, gp, 40, 41, 60),
                   new TxE("Java2D", f2, TxE.AC, yellow, 0, 60) }},
               { { "Previous scene dither dissolve out", "0"},
                 { new DdE(0, 20, 4) }},
               { { "Imaging Features", "999" },
                 { new Temp(Temp.RECT, null, 0, 15),
                   new Temp(Temp.IMG, java_logo, 2, 15),
                   new Temp(Temp.RNA | Temp.INA, java_logo, 16, 130),
                   new Features(Features.IMAGES, 16, 130) }},
               { { "Java2D  -  text on gradient", "1000" },
                 { new GpE(GpE.SDH, blue, black, 0, 20),
                   new GpE(GpE.SIH, blue, black, 21, 40),
                   new GpE(GpE.SDH, blue, black, 41, 50),
                   new GpE(GpE.INC | GpE.NF, red, yellow, 0, 50),
                   new TxE("Java2D", f2, TxE.NOP, null, 0, 50) }},
               { { "Previous scene ellipse close out", "0"},
                 { new CoE(CoE.OVAL, 0, 20) } },
               { { "Color Features", "999" },
                 { new Temp(Temp.RECT, null, 0, 15),
                   new Temp(Temp.IMG, java_logo, 2, 15),
                   new Temp(Temp.RNA | Temp.INA, java_logo, 16, 99),
                   new Features(Features.COLOR, 16, 99) }},
               { { "Java2D  -  composite and rotate text on paints", "2000" },
                 { new GpE(GpE.BURI, black, blue, 0, 20),
                   new GpE(GpE.BURD, black, blue, 21, 30),
                   new TpE(TpE.OI | TpE.HAF, black, blue, 10, 31, 40),
                   new TxE("Java2D", f2, TxE.AC | TxE.RI, yellow, 0, 40) }},
               { { "Previous scene subimage transform out", "0" },
                 { new SiE(60, 60, 0, 40) }},
               { { "CREDITS  -  transform in", "1000" },
                 { new LnE(LnE.ACI | LnE.ZOOMI | LnE.RI, 0, 60),
                   new TxE("CREDITS", f3, TxE.AC | TxE.SCI, Color.red,20,30),
                   new TxE("CREDITS", f3, TxE.SCXD, Color.red, 31, 38),
                   new TxE("CREDITS", f3, TxE.SCXI, Color.red, 39, 48),
                   new TxE("CREDITS", f3, TxE.SCXD, Color.red, 49, 54),
                   new TxE("CREDITS", f3, TxE.SCXI, Color.red, 55, 60) }},
               { { "CREDITS  -  transform out", "0" },
                 { new LnE(LnE.ACD | LnE.ZOOMD | LnE.RD, 0, 45),
                   new TxE("CREDITS", f3, 0, Color.red, 0, 9),
                   new TxE("CREDITS", f3, TxE.SCD | TxE.RD, Color.red,10,30)}},
               { { "Contributors", "1000" },
                 { new Temp(Temp.RECT, null, 0, 30),
                   new Temp(Temp.IMG, cupanim, 4, 30),
                   new Temp(Temp.RNA | Temp.INA, cupanim, 31, 200),
                   new Contributors(34, 200) } },
            };


            public Director() {
                for (int i = 0; i < parts.length; i++) {
                    Vector v = new Vector();
                    for (int j = 0; j < parts[i][1].length; j++) {
                        v.addElement(parts[i][1][j]);
                    }
                    addElement(new Scene(v, parts[i][0][0], parts[i][0][1]));
                }
            }
        }
        


        /**
         * Scene is the manager of the parts.
         */
        static class Scene extends Object {
            public Object name;
            public Object participate = new Boolean(true);
            public Object pauseAmt;
            public Vector parts;
            public int index;
            public int length;

            public Scene(Vector parts, Object name, Object pauseAmt) {
                this.name = name;
                this.parts = parts;
                this.pauseAmt = pauseAmt;
                for (int i = 0; i < parts.size(); i++) {
                    if (((Part) parts.get(i)).getEnd() > length) {
                        length = ((Part) parts.get(i)).getEnd();
                    }
                }
            }

            public void reset(int w, int h) {
                index = 0;
                for (int i = 0; i < parts.size(); i++) {
                    ((Part) parts.get(i)).reset(w, h);
                }
            }

            public void step(int w, int h) {
                for (int i = 0; i < parts.size(); i++) {
                    Part part = (Part) parts.get(i);
                    if (index >= part.getBegin() && index <= part.getEnd()) {
                        part.step(w, h);
                    }
                }
            }

            public void render(int w, int h, Graphics2D g2) {
                for (int i = 0; i < parts.size(); i++) {
                    Part part = (Part) parts.get(i);
                    if (index >= part.getBegin() && index <= part.getEnd()) {
                        part.render(w, h, g2);
                    }
                }
            }

            public void pause(Thread thread) {
                try {
                    thread.sleep(Long.parseLong((String) pauseAmt));
                } catch (Exception e) { }
                System.gc();
            }
        } // End Scene class



        /**
         * Text Effect.  Transformation of characters.  Clip or fill.
         */
        static class TxE implements Part {

            static final int INC  = 1;
            static final int DEC  = 2;
            static final int R    = 4;            // rotate
            static final int RI   = R | INC;
            static final int RD   = R | DEC;
            static final int SC   = 8;            // scale
            static final int SCI  = SC | INC;
            static final int SCD  = SC | DEC;    
            static final int SCX  = 16;           // scale invert x
            static final int SCXI = SCX | SC | INC;
            static final int SCXD = SCX | SC | DEC; 
            static final int SCY  = 32;           // scale invert y
            static final int SCYI = SCY | SC | INC;
            static final int SCYD = SCY | SC | DEC; 
            static final int AC   = 64;           // AlphaComposite
            static final int CLIP = 128;          // Clipping
            static final int NOP  = 512;          // No Paint 
            private int beginning, ending;
            private int type;
            private double rIncr, sIncr;
            private double sx, sy, rotate;
            private Shape shapes[], txShapes[];
            private int sw;
            private int numRev;
            private Paint paint;


            public TxE(String text, 
                           Font font, 
                           int type, 
                           Paint paint,
                           int beg, 
                           int end) {
                this.type = type;
                this.paint = paint;
                this.beginning = beg;
                this.ending = end;

                setIncrements(2);
                
                char[] chars = text.toCharArray();
                shapes = new Shape[chars.length];
                txShapes = new Shape[chars.length];
                FontRenderContext frc = new FontRenderContext(null,true,true);
                TextLayout tl = new TextLayout(text, font, frc);
                sw = (int) tl.getOutline(null).getBounds().getWidth();
                for (int j = 0; j < chars.length; j++) {
                    String s = String.valueOf(chars[j]);
                    shapes[j] = new TextLayout(s, font, frc).getOutline(null);
                }
            }


            public void setIncrements(double numRevolutions) {
                this.numRev = (int) numRevolutions;
                rIncr = 360.0 / ((ending - beginning) / numRevolutions);
                sIncr = 1.0 / (ending - beginning);
                if ((type & SCX) != 0 || (type & SCY) != 0) {
                    sIncr *= 2;
                }
                if ((type & DEC) != 0) {
                    rIncr = -rIncr;
                    sIncr = -sIncr;
                }
            }


            public void reset(int w, int h) {
                if (type == SCXI) {
                    sx = -1.0;  sy = 1.0;
                } else if (type == SCYI) {
                    sx = 1.0;  sy = -1.0;
                } else {
                    sx = sy = (type & DEC) != 0 ? 1.0 : 0.0;  
                }
                rotate = 0;
            }

       
            public void step(int w, int h) {
        
                float charWidth = w/2-sw/2;
        
                for (int i = 0; i < shapes.length; i++) {
                    AffineTransform at = new AffineTransform();
                    Rectangle2D maxBounds = shapes[i].getBounds();
                    at.translate(charWidth, h/2+maxBounds.getHeight()/2);
                    charWidth += (float) maxBounds.getWidth() + 1;
                    Shape shape = at.createTransformedShape(shapes[i]);
                    Rectangle2D b1 = shape.getBounds2D();
        
                    if ((type & R) != 0) {
                        at.rotate(Math.toRadians(rotate)); 
                    }
                    if ((type & SC) != 0) {
                        at.scale(sx, sy);
                    }
                    shape = at.createTransformedShape(shapes[i]);
                    Rectangle2D b2 = shape.getBounds2D();
      
                    double xx = (b1.getX()+b1.getWidth()/2)
                                - (b2.getX()+b2.getWidth()/2);
                    double yy = (b1.getY()+b1.getHeight()/2)
                                - (b2.getY()+b2.getHeight()/2);
                    AffineTransform toCenterAT = new AffineTransform();
                    toCenterAT.translate(xx, yy);
                    toCenterAT.concatenate(at);
                    txShapes[i] = toCenterAT.createTransformedShape(shapes[i]);
                }
                // avoid over rotation
                if (Math.abs(rotate) <= numRev * 360) {
                    rotate += rIncr;
                    if ((type & SCX) != 0) {
                        sx += sIncr;
                    } else if ((type & SCY) != 0) {
                        sy += sIncr;
                    } else {
                        sx += sIncr; sy += sIncr;
                    }
                }
            }


            public void render(int w, int h, Graphics2D g2) {
                Composite saveAC = null;
                if ((type & AC) != 0 && sx > 0 && sx < 1) {
                    saveAC = g2.getComposite();
                    g2.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, (float) sx));
                }
                GeneralPath path = null;
                if ((type & CLIP) != 0) {
                    path = new GeneralPath();
                }
                if (paint != null) {
                    g2.setPaint(paint);
                }
                for (int i = 0; i < txShapes.length; i++) {
                    if ((type & CLIP) != 0) {
                       path.append(txShapes[i], false);
                    } else {
                       g2.fill(txShapes[i]);
                    }
                }
                if ((type & CLIP) != 0) {
                    g2.clip(path);
                }
                if (saveAC != null) {
                   g2.setComposite(saveAC);
                }
            }


            public int getBegin() {
                return beginning;
            }

            public int getEnd() {
                return ending;
            }
        } // End TxE class




        /**
         * GradientPaint Effect.  Burst, split, horizontal and 
         * vertical gradient fill effects.
         */
        static class GpE implements Part {

            static final int INC = 1;             // increasing
            static final int DEC = 2;             // decreasing
            static final int CNT = 4;             // center
            static final int WID = 8;             // width 
            static final int WI  = WID | INC;             
            static final int WD  = WID | DEC;            
            static final int HEI = 16;            // height
            static final int HI  = HEI | INC;            
            static final int HD  = HEI | DEC;            
            static final int SPL = 32 | CNT;      // split 
            static final int SIW = SPL | INC | WID;
            static final int SDW = SPL | DEC | WID;
            static final int SIH = SPL | INC | HEI;
            static final int SDH = SPL | DEC | HEI;
            static final int BUR = 64 | CNT;     // burst 
            static final int BURI = BUR | INC;    
            static final int BURD = BUR | DEC;   
            static final int NF = 128;           // no fill
            private Color c1, c2;
            private int beginning, ending;
            private float incr, index;
            private Vector rect = new Vector();
            private Vector grad = new Vector();
            private int type;


            public GpE(int type, Color c1, Color c2, int beg, int end) {
                this.type = type;
                this.c1 = c1;
                this.c2 = c2;
                this.beginning = beg;
                this.ending = end;
            }


            public void reset(int w, int h) {
                incr = 1.0f / (ending - beginning);
                if ((type & CNT) != 0) {
                    incr /= 2.3f;
                }
                if ((type & CNT) != 0 && (type & INC) != 0) {
                    index = 0.5f;
                } else if ((type & DEC) != 0) {
                    index = 1.0f;
                    incr = -incr;
                } else {
                    index = 0.0f;
                }
                index += incr;
            }

       
            public void step(int w, int h) {
                rect.clear();
                grad.clear();

                if ((type & WID) != 0) {
                    float w2 = 0, x1 = 0, x2 = 0;
                    if ((type & SPL) != 0) {
                        w2 = w * 0.5f;
                        x1 = w * (1.0f - index);
                        x2 = w * index;
                    } else {
                        w2 = w * index;
                        x1 = x2 = w2;
                    }
                    rect.addElement(new Rectangle2D.Float(0, 0, w2, h));
                    rect.addElement(new Rectangle2D.Float(w2, 0, w-w2, h));
                    grad.addElement(new GradientPaint(0,0,c1,x1,0,c2));
                    grad.addElement(new GradientPaint(x2,0,c2,w,0,c1));
                } else if ((type & HEI) != 0) {
                    float h2 = 0, y1 = 0, y2 = 0;
                    if ((type & SPL) != 0) {
                        h2 = h * 0.5f;
                        y1 = h * (1.0f - index);
                        y2 = h * index;
                    } else {
                        h2 = h * index;
                        y1 = y2 = h2;
                    }
                    rect.addElement(new Rectangle2D.Float(0, 0, w, h2));
                    rect.addElement(new Rectangle2D.Float(0, h2, w, h-h2));
                    grad.addElement(new GradientPaint(0,0,c1,0,y1,c2));
                    grad.addElement(new GradientPaint(0,y2,c2,0,h,c1));
                } else if ((type & BUR) != 0) {

                    float w2 = w/2;
                    float h2 = h/2;

                    rect.addElement(new Rectangle2D.Float(0, 0, w2, h2));
                    rect.addElement(new Rectangle2D.Float(w2, 0, w2, h2));
                    rect.addElement(new Rectangle2D.Float(0, h2, w2, h2));
                    rect.addElement(new Rectangle2D.Float(w2, h2, w2, h2));

                    float x1 = w * (1.0f - index);
                    float x2 = w * index;
                    float y1 = h * (1.0f - index);
                    float y2 = h * index;

                    grad.addElement(new GradientPaint(0,0,c1,x1,y1,c2));
                    grad.addElement(new GradientPaint(w,0,c1,x2,y1,c2));
                    grad.addElement(new GradientPaint(0,h,c1,x1,y2,c2));
                    grad.addElement(new GradientPaint(w,h,c1,x2,y2,c2));
                } else if ((type & NF) != 0) {
                    float x = w * index;
                    float y = h * index;
                    grad.addElement(new GradientPaint(0,0,c1,0,y,c2));
                }

                if ((type & INC) != 0 || (type & DEC) != 0) {
                    index += incr;
                }
            }


            public void render(int w, int h, Graphics2D g2) {
                g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, 
                                RenderingHints.VALUE_ANTIALIAS_OFF);
                for (int i = 0; i < grad.size(); i++) {
                    g2.setPaint((GradientPaint) grad.get(i));
                    if ((type & NF) == 0) {
                        g2.fill((Rectangle2D) rect.get(i));
                    }
                }
                g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, 
                                RenderingHints.VALUE_ANTIALIAS_ON);
            }

            public int getBegin() {
                return beginning;
            }

            public int getEnd() {
                return ending;
            }
        } // End GpE class



        /**
         * TexturePaint Effect.  Expand and collapse a texture. 
         */
        static class TpE implements Part {

            static final int INC = 1;             // increasing
            static final int DEC = 2;             // decreasing
            static final int OVAL = 4;            // oval
            static final int RECT = 8;            // rectangle 
            static final int HAF = 16;            // half oval or rect size
            static final int OI = OVAL | INC; 
            static final int OD = OVAL | DEC;
            static final int RI = RECT | INC;
            static final int RD = RECT | DEC;
            static final int NF = 32;             // no fill 
            private Paint p1, p2;
            private int beginning, ending;
            private float incr, index;
            private TexturePaint texture;
            private int type;
            private int size;
            private BufferedImage bimg;
            private Rectangle rect;


            public TpE(int type, Paint p1, Paint p2, int size,
                                   int beg, int end) {
                this.type = type;
                this.p1 = p1;
                this.p2 = p2;
                this.beginning = beg;
                this.ending = end;
                setTextureSize(size);
            }


            public void setTextureSize(int size) {
                this.size = size;
                bimg = new BufferedImage(size,size,BufferedImage.TYPE_INT_RGB);
                rect = new Rectangle(0,0,size,size);
            }


            public void reset(int w, int h) {
                incr = (float) (size) / (float) (ending - beginning);
                if ((type & HAF) != 0) {
                   incr /= 2;
                }
                if ((type & DEC) != 0) {
                    index = size;
                    if ((type & HAF) != 0) {
                       index /= 2;
                    }
                    incr = -incr;
                } else {
                    index = 0.0f;
                }
                index += incr;
            }

       
            public void step(int w, int h) {
                Graphics2D g2 = bimg.createGraphics();
                g2.setPaint(p1);
                g2.fillRect(0,0,size,size);
                g2.setPaint(p2);
                if ((type & OVAL) != 0) {
                    g2.fill(new Ellipse2D.Float(0,0,index,index));
                } else if ((type & RECT) != 0) {
                    g2.fill(new Rectangle2D.Float(0,0,index,index));
                }
                texture = new TexturePaint(bimg, rect);
                g2.dispose();
                index += incr;
            }


            public void render(int w, int h, Graphics2D g2) {
                g2.setPaint(texture);
                if ((type & NF) == 0) {
                    g2.fillRect(0, 0, w, h);
                }
            }

            public int getBegin() {
                return beginning;
            }

            public int getEnd() {
                return ending;
            }
        } // End TpE class



        /**
         * Close out effect.  Close out the buffered image with different 
         * geometry shapes.
         */
        static class CoE implements Part {

            static final int WID  = 1;            
            static final int HEI  = 2;           
            static final int OVAL = 4;            
            static final int RECT = 8;           
            static final int RAND = 16;           
            static final int ARC  = 32;           
            private int type;
            private int beginning, ending;
            private BufferedImage bimg;
            private Shape shape;
            private double zoom, extent;
            private double zIncr, eIncr;
            private boolean doRandom;


            public CoE(int type, int beg, int end) {
                this.type = type;
                this.beginning = beg;
                this.ending = end;
                zIncr = -(2.0 / (ending - beginning));
                eIncr = 360.0 / (ending - beginning);
                doRandom = (type & RAND) != 0;
            }


            public void reset(int w, int h) {
                if (doRandom) {
                    int num = (int) (Math.random() * 5.0);
                    switch (num) {
                        case 0 : type = OVAL; break;
                        case 1 : type = RECT; break;
                        case 2 : type = RECT | WID; break;
                        case 3 : type = RECT | HEI; break;
                        case 4 : type = ARC; break;
                        default : type = OVAL; 
                    }
                }
                shape = null;
                bimg = null;
                extent = 360.0;
                zoom = 2.0;
            }


            public void step(int w, int h) {
                if (bimg == null) {
                    int biw = Surface.bimg.getWidth();
                    int bih = Surface.bimg.getHeight();
                    bimg = new BufferedImage(biw, bih, BufferedImage.TYPE_INT_RGB);
                    Graphics2D big = bimg.createGraphics();
                    big.drawImage(Surface.bimg, 0, 0, null);
                }
                double z = Math.min(w, h) * zoom;
                if ((type & OVAL) != 0) {
                    shape = new Ellipse2D.Double(w/2-z/2,h/2-z/2,z,z);
                } else if ((type & ARC) != 0) {
                    shape = new Arc2D.Double(-100,-100,w+200,h+200,90,extent,Arc2D.PIE);
                    extent -= eIncr;
                } else if ((type & RECT) != 0) {
                    if ((type & WID) != 0) {
                        shape = new Rectangle2D.Double(w/2-z/2,0,z,h);
                    } else if ((type & HEI) != 0) {
                        shape = new Rectangle2D.Double(0,h/2-z/2,w,z);
                    } else {
                        shape = new Rectangle2D.Double(w/2-z/2,h/2-z/2,z,z);
                    }
                }
                zoom += zIncr;
            }


            public void render(int w, int h, Graphics2D g2) {
                g2.clip(shape);
                g2.drawImage(bimg, 0, 0, null);
            }

            public int getBegin() {
                return beginning;
            }

            public int getEnd() {
                return ending;
            }
        } // End CoE class



        /**
         * Dither Dissolve Effect. For each successive step in the animation, 
         * a pseudo-random starting horizontal position is chosen using list, 
         * and then the corresponding points created from xlist and ylist are
         * blacked out for the current "chunk".  The x and y chunk starting
         * positions are each incremented by the associated chunk size, and 
         * this process is repeated for the number of "steps" in the 
         * animation, causing an equal number of pseudo-randomly picked 
         * "blocks" to be blacked out during each step of the animation.
         */
        static class DdE implements Part {

            private int beginning, ending;
            private BufferedImage bimg;
            private Graphics2D big;
            private List list, xlist, ylist;
            private int xeNum, yeNum;    // element number
            private int xcSize, ycSize;  // chunk size
            private int inc;
            private int blocksize;


            public DdE(int beg, int end, int blocksize) {
                this.beginning = beg;
                this.ending = end;
                this.blocksize = blocksize; 
            }

            private void createShuffledLists() {
                int width = bimg.getWidth();
                int height = bimg.getHeight();
                Integer xarray[] = new Integer[width];
                Integer yarray[] = new Integer[height];
                Integer array[] = new Integer[ending - beginning + 1];
                for (int i = 0; i < xarray.length; i++) {
                    xarray[i] = new Integer(i);
                }
                for (int j = 0; j < yarray.length; j++) {
                    yarray[j] = new Integer(j);
                }
                for (int k = 0; k < array.length; k++) {
                    array[k] = new Integer(k);
                } 
                java.util.Collections.shuffle(xlist = Arrays.asList(xarray));
                java.util.Collections.shuffle(ylist = Arrays.asList(yarray));
                java.util.Collections.shuffle(list = Arrays.asList(array));
            }

            public void reset(int w, int h) {
                bimg = null;
            }

            public void step(int w, int h) {
                if (bimg == null) {
                    int biw = Surface.bimg.getWidth();
                    int bih = Surface.bimg.getHeight();
                    bimg = new BufferedImage(biw, bih, BufferedImage.TYPE_INT_RGB);
                    createShuffledLists();
                    big = bimg.createGraphics();
                    big.drawImage(Surface.bimg, 0, 0, null);
                    xcSize = (xlist.size() / (ending - beginning)) + 1;
                    ycSize = (ylist.size() / (ending - beginning)) + 1;
                    xeNum = 0;
                    inc = 0;
                }
                xeNum = xcSize * ((Integer)list.get(inc)).intValue();
                yeNum = -ycSize;
                inc++;
            }


            public void render(int w, int h, Graphics2D g2) {
                big.setColor(black); 

                for (int k = 0; k <= (ending - beginning); k++) {
                    if ((xeNum + xcSize) > xlist.size()) {
                        xeNum = 0;
                    } else {
                        xeNum += xcSize;
                    }
                    yeNum += ycSize;

                    for (int i = xeNum; i < xeNum+xcSize && i < xlist.size(); i++) {
                        for (int j = yeNum; j < yeNum+ycSize && j < ylist.size(); j++) {   
                            int xval = ((Integer)xlist.get(i)).intValue();
                            int yval = ((Integer)ylist.get(j)).intValue();
                            if (((xval % blocksize) == 0) &&
                                ((yval % blocksize) == 0)) {
                                big.fillRect(xval, yval, blocksize, blocksize);
                            }
                        }
                    }
                }
           
                g2.drawImage(bimg, 0, 0, null);
            }

            public int getBegin() {
                return beginning;
            }

            public int getEnd() {
                return ending;
            }
        } // End DdE class


        /**
         * Subimage effect.  Subimage the scene's buffered
         * image then rotate and scale down the subimages.
         */
        static class SiE implements Part {

            private int beginning, ending;
            private BufferedImage bimg;
            private double rIncr, sIncr;
            private double scale, rotate;
            private int siw, sih;
            private Vector subs = new Vector(20);
            private Vector pts = new Vector(20);


            public SiE(int siw, int sih, int beg, int end) {
                this.siw = siw;
                this.sih = sih;
                this.beginning = beg;
                this.ending = end;
                rIncr = 360.0 / (ending - beginning);
                sIncr = 1.0 / (ending - beginning);
            }


            public void reset(int w, int h) {
                scale = 1.0;  
                rotate = 0.0;
                bimg = null;
                subs.clear();
                pts.clear();
            }


            public void step(int w, int h) {
                if (bimg == null) {
                    int biw = Surface.bimg.getWidth();
                    int bih = Surface.bimg.getHeight();
                    bimg = new BufferedImage(biw, bih, BufferedImage.TYPE_INT_RGB);
                    Graphics2D big = bimg.createGraphics();
                    big.drawImage(Surface.bimg, 0, 0, null);
                    for (int x = 0; x < w && scale > 0.0; x+=siw) {
                        int ww = x+siw < w ? siw : w-x;
                        for (int y = 0; y < h; y+=sih) {
                            int hh = y+sih < h ? sih : h-y;
                            subs.addElement(bimg.getSubimage(x,y,ww,hh));    
                            pts.addElement(new Point(x, y));
                        }
                    }
                }
                
                rotate += rIncr;
                scale -= sIncr;
            }


            public void render(int w, int h, Graphics2D g2) {
                AffineTransform saveTx = g2.getTransform();
                g2.setColor(blue);
                for (int i = 0; i < subs.size() && scale > 0.0; i++) {
                    BufferedImage bi = (BufferedImage) subs.get(i);
                    Point p = (Point) pts.get(i);
                    int ww = bi.getWidth();
                    int hh = bi.getHeight();
                    AffineTransform at = new AffineTransform();
                    at.rotate(Math.toRadians(rotate), p.x+ww/2, p.y+hh/2); 
                    at.translate(p.x, p.y);
                    at.scale(scale, scale);

                    Rectangle b1 = new Rectangle(0, 0, ww, hh);
                    Shape shape = at.createTransformedShape(b1);
                    Rectangle2D b2 = shape.getBounds2D();
                    double xx = (p.x+ww/2) - (b2.getX()+b2.getWidth()/2);
                    double yy = (p.y+hh/2) - (b2.getY()+b2.getHeight()/2);
                    AffineTransform toCenterAT = new AffineTransform();
                    toCenterAT.translate(xx, yy);
                    toCenterAT.concatenate(at);

                    g2.setTransform(toCenterAT);
                    g2.drawImage(bi, 0, 0, null);
                    g2.draw(b1);
                }
                g2.setTransform(saveTx);
            }

            public int getBegin() {
                return beginning;
            }

            public int getEnd() {
                return ending;
            }
        } // End SiE class




        /**
         * Line Effect.  Flattened ellipse with lines from the center 
         * to the edge.  Expand or collapse the ellipse.  Fade in or out 
         * the lines.
         */
        static class LnE implements Part {

            static final int INC  = 1;
            static final int DEC  = 2;
            static final int R    = 4;              // rotate
            static final int RI   = R | INC;
            static final int RD   = R | DEC;
            static final int ZOOM   = 8;            // zoom
            static final int ZOOMI  = ZOOM | INC;
            static final int ZOOMD  = ZOOM | DEC;    
            static final int AC   = 32;             // AlphaComposite
            static final int ACI   = 32 | INC;
            static final int ACD   = 32 | DEC; 
            private int beginning, ending;
            private double rIncr, rotate;
            private double zIncr, zoom;
            private Vector pts = new Vector();
            private float alpha, aIncr;
            private int type;


            public LnE(int type, int beg, int end) {
                this.type = type;
                this.beginning = beg;
                this.ending = end;
                rIncr = 360.0 / (ending - beginning);
                aIncr = 0.9f / (ending - beginning);
                zIncr = 2.0 / (ending - beginning);
                if ((type & DEC) != 0) {
                    rIncr = -rIncr;
                    aIncr = -aIncr;
                    zIncr = -zIncr;
                }
            }


            public void generatePts(int w, int h, double sizeF) {
                pts.clear();
                double size = Math.min(w, h) * sizeF;
                Ellipse2D ellipse = new Ellipse2D.Double(w/2-size/2,h/2-size/2,size,size);
                PathIterator pi = ellipse.getPathIterator(null, 0.8);
                while ( !pi.isDone() ) {
                    double[] pt = new double[6];
                    switch ( pi.currentSegment(pt) ) {
                        case FlatteningPathIterator.SEG_MOVETO:
                        case FlatteningPathIterator.SEG_LINETO:
                            pts.addElement(new Point2D.Double(pt[0], pt[1]));
                    }
                    pi.next();
                }
            }


            public void reset(int w, int h) {
                if ((type & DEC) != 0) {
                    rotate = 360;
                    alpha = 1.0f;
                    zoom = 2.0;
                } else {
                    rotate = alpha = 0;
                    zoom = 0;
                }
                if ((type & ZOOM) == 0) {
                    generatePts(w, h, 0.5);
                }
            }


            public void step(int w, int h) {
                if ((type & ZOOM) != 0) {
                    generatePts(w, h, zoom += zIncr);
                }
                if ((type & RI) != 0 || (type & RI) != 0) {
                   rotate += rIncr;
                }
                if ((type & ACI) != 0 || (type & ACD) != 0) {
                   alpha += aIncr;
                }
            }


            public void render(int w, int h, Graphics2D g2) {
                Composite saveAC = null;
                if ((type & AC) != 0 && alpha >= 0 && alpha <= 1) {
                    saveAC = g2.getComposite();
                    g2.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, alpha));
                }
                AffineTransform saveTx = null;
                if ((type & R) != 0) {
                    saveTx = g2.getTransform();
                    AffineTransform at = new AffineTransform();
                    at.rotate(Math.toRadians(rotate), w/2, h/2); 
                    g2.setTransform(at);
                }
                Point2D p1 = new Point2D.Double(w/2, h/2);
                g2.setColor(Color.yellow);
                for (int i = 0; i < pts.size()-1; i++) {
                    g2.draw(