intro.java

这是ACCP的JAVA ppt课件

            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]);