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40
41 package java2d.demos.Composite;
42
43 import static java.awt.Color  .*;
44 import java.awt.*;
45 import java.awt.geom.*;
46 import java.awt.image.*;
47 import java.awt.event.*;
48 import java.util.Vector ;
49 import javax.swing.*;
50 import javax.swing.event.*;
51 import javax.swing.border.*;
52 import java2d.AnimatingControlsSurface;
53 import java2d.CustomControls;
54
55
56
57
60 public class FadeAnim extends AnimatingControlsSurface {
61
62 private static TexturePaint texture;
63 static {
64 int w = 10; int h = 10;
65 BufferedImage bi = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
66 Graphics2D gi = bi.createGraphics();
67 Color oc = BLUE; Color ic = GREEN;
68 gi.setPaint(new GradientPaint(0,0,oc,w*.35f,h*.35f,ic));
69 gi.fillRect(0, 0, w/2, h/2);
70 gi.setPaint(new GradientPaint(w,0,oc,w*.65f,h*.35f,ic));
71 gi.fillRect(w/2, 0, w/2, h/2);
72 gi.setPaint(new GradientPaint(0,h,oc,w*.35f,h*.65f,ic));
73 gi.fillRect(0, h/2, w/2, h/2);
74 gi.setPaint(new GradientPaint(w,h,oc,w*.65f,h*.65f,ic));
75 gi.fillRect(w/2, h/2, w/2, h/2);
76 texture = new TexturePaint(bi,new Rectangle(0,0,w,h));
77 }
78 private static BasicStroke bs = new BasicStroke(6);
79 private static Font fonts[] = {
80 new Font("Times New Roman", Font.PLAIN, 64),
81 new Font("serif", Font.BOLD + Font.ITALIC, 24),
82 new Font("Courier", Font.BOLD, 36),
83 new Font("Arial", Font.BOLD + Font.ITALIC, 48),
84 new Font("Helvetica", Font.PLAIN, 52)};
85 private static String strings[] = {
86 "Alpha", "Composite", "Src", "SrcOver",
87 "SrcIn", "SrcOut", "Clear", "DstOver", "DstIn" };
88 private static String imgs[] = {
89 "jumptojavastrip.png", "duke.gif", "star7.gif" };
90 private static Paint paints[] = {
91 RED, BLUE, GREEN, MAGENTA,
92 ORANGE, PINK, CYAN, texture,
93 YELLOW, LIGHT_GRAY, WHITE};
94 private Vector vector = new Vector (20);
95 private int numShapes, numStrings, numImages;
96
97
98 public FadeAnim() {
99 setBackground(BLACK);
100 setStrings(2);
101 setImages(3);
102 setShapes(8);
103 setControls(new Component[] { new DemoControls(this) });
104 setConstraints(new String [] { BorderLayout.EAST });
105 }
106
107
108 public void setImages(int num) {
109
110 if (num < numImages) {
111 Vector v = new Vector (vector.size());
112 for (int i = 0; i < vector.size(); i++) {
113 if (((ObjectData) vector.get(i)).object instanceof Image) {
114 v.addElement(vector.get(i));
115 }
116 }
117 vector.removeAll(v);
118 v.setSize(num);
119 vector.addAll(v);
120 } else {
121 Dimension d = getSize();
122 for (int i = numImages; i < num; i++) {
123 Object obj = getImage(imgs[i % imgs.length]);
124 if (imgs[i % imgs.length].equals("jumptojavastrip.png")) {
125 int iw = ((Image) obj).getWidth(null);
126 int ih = ((Image) obj).getHeight(null);
127 BufferedImage bimg = new BufferedImage(iw, ih, BufferedImage.TYPE_INT_RGB);
128 bimg.createGraphics().drawImage((Image) obj, 0, 0, null);
129 obj = bimg;
130 }
131 ObjectData od = new ObjectData(obj, BLACK);
132 od.reset(d.width, d.height);
133 vector.addElement(od);
134 }
135 }
136 numImages = num;
137 }
138
139
140 public void setStrings(int num) {
141
142 if (num < numStrings) {
143 Vector v = new Vector (vector.size());
144 for (int i = 0; i < vector.size(); i++) {
145 if (((ObjectData) vector.get(i)).object instanceof TextData) {
146 v.addElement(vector.get(i));
147 }
148 }
149 vector.removeAll(v);
150 v.setSize(num);
151 vector.addAll(v);
152 } else {
153 Dimension d = getSize();
154 for (int i = numStrings; i < num; i++) {
155 int j = i % fonts.length;
156 int k = i % strings.length;
157 Object obj = new TextData(strings[k], fonts[j], this);
158 ObjectData od = new ObjectData(obj, paints[i%paints.length]);
159 od.reset(d.width, d.height);
160 vector.addElement(od);
161 }
162 }
163 numStrings = num;
164 }
165
166
167 public void setShapes(int num) {
168
169 if (num < numShapes) {
170 Vector v = new Vector (vector.size());
171 for (int i = 0; i < vector.size(); i++) {
172 if (((ObjectData) vector.get(i)).object instanceof Shape) {
173 v.addElement(vector.get(i));
174 }
175 }
176 vector.removeAll(v);
177 v.setSize(num);
178 vector.addAll(v);
179 } else {
180 Dimension d = getSize();
181 for (int i = numShapes; i < num; i++) {
182 Object obj = null;
183 switch (i % 7) {
184 case 0 : obj = new GeneralPath(); break;
185 case 1 : obj = new Rectangle2D.Double(); break;
186 case 2 : obj = new Ellipse2D.Double(); break;
187 case 3 : obj = new Arc2D.Double(); break;
188 case 4 : obj = new RoundRectangle2D.Double(); break;
189 case 5 : obj = new CubicCurve2D.Double(); break;
190 case 6 : obj = new QuadCurve2D.Double(); break;
191 }
192 ObjectData od = new ObjectData(obj, paints[i%paints.length]);
193 od.reset(d.width, d.height);
194 vector.addElement(od);
195 }
196 }
197 numShapes = num;
198 }
199
200
201 public void reset(int w, int h) {
202 for (int i = 0; i < vector.size(); i++) {
203 ((ObjectData) vector.get(i)).reset(w, h);
204 }
205 }
206
207
208 public void step(int w, int h) {
209 for (int i = 0; i < vector.size(); i++) {
210 ((ObjectData) vector.get(i)).step(w, h);
211 }
212 }
213
214
215 public void render(int w, int h, Graphics2D g2) {
216 for (int i = 0; i < vector.size(); i++) {
217 ObjectData od = (ObjectData) vector.get(i);
218 AlphaComposite ac = AlphaComposite.getInstance(
219 AlphaComposite.SRC_OVER, od.alpha);
220 g2.setComposite(ac);
221 g2.setPaint(od.paint);
222 g2.translate(od.x, od.y);
223
224 if (od.object instanceof Image) {
225 g2.drawImage((Image) od.object, 0, 0, this);
226 } else if (od.object instanceof TextData) {
227 g2.setFont(((TextData) od.object).font);
228 g2.drawString(((TextData) od.object).string, 0, 0);
229 } else if (od.object instanceof QuadCurve2D
230 || od.object instanceof CubicCurve2D)
231 {
232 g2.setStroke(bs);
233 g2.draw((Shape) od.object);
234 } else if (od.object instanceof Shape) {
235 g2.fill((Shape) od.object);
236 }
237 g2.translate(-od.x, -od.y);
238 }
239 }
240
241
242 public static void main(String argv[]) {
243 createDemoFrame(new FadeAnim());
244 }
245
246
247 static class TextData extends Object {
248
249 public String string;
250 public Font font;
251 public int width, height;
252
253 public TextData(String str, Font font, Component cmp) {
254 string = str;
255 this.font = font;
256 FontMetrics fm = cmp.getFontMetrics(font);
257 width = fm.stringWidth(str);
258 height = fm.getHeight();
259 }
260 }
261
262
263 static class ObjectData extends Object {
264 final int UP = 0;
265 final int DOWN = 1;
266 Object object;
267 BufferedImage bimg;
268 Paint paint;
269 double x, y;
270 float alpha;
271 int alphaDirection;
272 int imgX;
273
274 public ObjectData(Object object, Paint paint) {
275 this.object = object;
276 this.paint = paint;
277 if (object instanceof BufferedImage) {
278 bimg = (BufferedImage) object;
279 this.object = bimg.getSubimage(0, 0, 80, 80);
280 }
281 getRandomXY(300, 250);
282 alpha = (float) Math.random();
283 alphaDirection = Math.random() > 0.5 ? UP : DOWN;
284 }
285
286
287 private void getRandomXY(int w, int h) {
288 if (object instanceof TextData) {
289 x = Math.random() * (w - ((TextData) object).width);
290 y = Math.random() * h;
291 y = y < ((TextData) object).height ? ((TextData) object).height : y;
292 } else if (object instanceof Image) {
293 x = Math.random() * (w - ((Image) object).getWidth(null));
294 y = Math.random() * (h - ((Image) object).getHeight(null));
295 } else if (object instanceof Shape) {
296 Rectangle bounds = ((Shape) object).getBounds();
297 x = Math.random() * (w - bounds.width);
298 y = Math.random() * (h - bounds.height);
299 }
300 }
301
302
303 public void reset(int w, int h) {
304 getRandomXY(w, h);
305 double ww = 20 + Math.random()*((w == 0 ? 400 : w)/4);
306 double hh = 20 + Math.random()*((h == 0 ? 300 : h)/4);
307 if (object instanceof Ellipse2D) {
308 ((Ellipse2D) object).setFrame(0, 0, ww, hh);
309 } else if (object instanceof Rectangle2D) {
310 ((Rectangle2D) object).setRect(0, 0, ww, ww);
311 } else if (object instanceof RoundRectangle2D) {
312 ((RoundRectangle2D) object).setRoundRect(0, 0, hh, hh, 20, 20);
313 } else if (object instanceof Arc2D) {
314 ((Arc2D) object).setArc(0, 0, hh, hh, 45, 270, Arc2D.PIE);
315 } else if (object instanceof QuadCurve2D) {
316 ((QuadCurve2D) object).setCurve(0, 0, w*.2, h*.4, w*.4, 0);
317 } else if (object instanceof CubicCurve2D) {
318 ((CubicCurve2D) object).setCurve(0,0,30,-60,60,60,90,0);
319 } else if (object instanceof GeneralPath) {
320 GeneralPath p = new GeneralPath();
321 float size = (float) ww;
322 p.moveTo(- size / 2.0f, - size / 8.0f);
323 p.lineTo(+ size / 2.0f, - size / 8.0f);
324 p.lineTo(- size / 4.0f, + size / 2.0f);
325 p.lineTo(+ 0.0f, - size / 2.0f);
326 p.lineTo(+ size / 4.0f, + size / 2.0f);
327 p.closePath();
328 object = p;
329 }
330 }
331
332
333 public void step(int w, int h) {
334 if (object instanceof BufferedImage) {
335 if ((imgX += 80) == 800) {
336 imgX = 0;
337 }
338 object = bimg.getSubimage(imgX, 0, 80, 80);
339 }
340 if (alphaDirection == UP) {
341 if ((alpha += 0.05) > .99) {
342 alphaDirection = DOWN;
343 alpha = 1.0f;
344 }
345 } else if (alphaDirection == DOWN) {
346 if ((alpha -= .05) < 0.01) {
347 alphaDirection = UP;
348 alpha = 0;
349 getRandomXY(w, h);
350 }
351 }
352 }
353 }
354
355
356 static class DemoControls extends CustomControls implements ChangeListener {
357
358 FadeAnim demo;
359 JSlider shapeSlider, stringSlider, imageSlider;
360 Font font = new Font("serif", Font.BOLD, 10);
361
362 public DemoControls(FadeAnim demo) {
363 super(demo.name);
364 this.demo = demo;
365 setLayout(new BoxLayout(this, BoxLayout.Y_AXIS));
366 add(Box.createVerticalStrut(5));
367
368 JToolBar toolbar = new JToolBar(JToolBar.VERTICAL);
369 toolbar.setFloatable(false);
370 shapeSlider = new JSlider(JSlider.HORIZONTAL,0,20,demo.numShapes);
371 shapeSlider.addChangeListener(this);
372 TitledBorder tb = new TitledBorder(new EtchedBorder());
373 tb.setTitleFont(font);
374 tb.setTitle(String.valueOf(demo.numShapes) + " Shapes");
375 shapeSlider.setBorder(tb);
376 shapeSlider.setPreferredSize(new Dimension(80,45));
377 shapeSlider.setOpaque(true);
378 toolbar.addSeparator();
379 toolbar.add(shapeSlider);
380 toolbar.addSeparator();
381
382 stringSlider = new JSlider(JSlider.HORIZONTAL,0,10,demo.numStrings);
383 stringSlider.addChangeListener(this);
384 tb = new TitledBorder(new EtchedBorder());
385 tb.setTitleFont(font);
386 tb.setTitle(String.valueOf(demo.numStrings) + " Strings");
387 stringSlider.setBorder(tb);
388 stringSlider.setPreferredSize(new Dimension(80,45));
389 stringSlider.setOpaque(true);
390 toolbar.add(stringSlider);
391 toolbar.addSeparator();
392
393 imageSlider = new JSlider(JSlider.HORIZONTAL,0,10,demo.numImages);
394 imageSlider.addChangeListener(this);
395 tb = new TitledBorder(new EtchedBorder());
396 tb.setTitleFont(font);
397 tb.setTitle(String.valueOf(demo.numImages) + " Images");
398 imageSlider.setBorder(tb);
399 imageSlider.setPreferredSize(new Dimension(80,45));
400 imageSlider.setOpaque(true);
401 toolbar.add(imageSlider);
402 toolbar.addSeparator();
403
404 add(toolbar);
405 }
406
407
408 public void stateChanged(ChangeEvent e) {
409 JSlider slider = (JSlider) e.getSource();
410 int value = slider.getValue();
411 TitledBorder tb = (TitledBorder) slider.getBorder();
412 if (slider.equals(shapeSlider)) {
413 tb.setTitle(String.valueOf(value) + " Shapes");
414 demo.setShapes(value);
415 } else if (slider.equals(stringSlider)) {
416 tb.setTitle(String.valueOf(value) + " Strings");
417 demo.setStrings(value);
418 } else if (slider.equals(imageSlider)) {
419 tb.setTitle(String.valueOf(value) + " Images");
420 demo.setImages(value);
421 }
422 slider.repaint();
423 if (demo.animating.thread == null) {
424 demo.repaint();
425 }
426 }
427
428
429 public Dimension getPreferredSize() {
430 return new Dimension(80,0);
431 }
432
433
434 public void run() {
435 try {
436 thread.sleep(999);
437 } catch (InterruptedException e) { return; }
438 shapeSlider.setValue((int) (Math.random() * 5));
439 stringSlider.setValue(10);
440 thread = null;
441 }
442 } } |
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