1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497
| import java.awt.AlphaComposite;
import java.awt.BasicStroke;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Cursor;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.GridBagLayout;
import java.awt.Image;
import java.awt.Insets;
import java.awt.Point;
import java.awt.Rectangle;
import java.awt.Shape;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;
import java.awt.event.MouseWheelEvent;
import java.awt.event.MouseWheelListener;
import java.awt.geom.AffineTransform;
import java.awt.geom.Ellipse2D;
import java.awt.geom.NoninvertibleTransformException;
import java.awt.image.ImageObserver;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;
import java.util.function.BiConsumer;
import javax.imageio.ImageIO;
import javax.swing.BorderFactory;
import javax.swing.JCheckBox;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.event.EventListenerList;
public class ScaleAdaptablePanel extends JPanel {
private static final long serialVersionUID = 1L;
private boolean proportional;
private boolean adaptable;
private final BiConsumer<Graphics2D,ImageObserver> painter;
private final Dimension drawsize;
private EventListenerList eventlisteners;
public ScaleAdaptablePanel(BiConsumer<Graphics2D,ImageObserver> painter, int width, int height) {
this.eventlisteners = new EventListenerList();
this.painter=painter;
this.proportional=true;
this.adaptable=true;
this.drawsize = new Dimension(width, height);
MouseAdapter mouseAdapter = new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
propagate(e, getMouseListeners(), MouseListener::mouseClicked);
}
@Override
public void mousePressed(MouseEvent e) {
propagate(e, getMouseListeners(), MouseListener::mousePressed);
}
@Override
public void mouseReleased(MouseEvent e) {
propagate(e, getMouseListeners(), MouseListener::mousePressed);
}
@Override
public void mouseEntered(MouseEvent e) {
propagate(e, getMouseListeners(), MouseListener::mouseEntered);
}
@Override
public void mouseExited(MouseEvent e) {
propagate(e, getMouseListeners(), MouseListener::mouseExited);
}
@Override
public void mouseMoved(MouseEvent e) {
propagate(e, getMouseMotionListeners(), MouseMotionListener::mouseMoved);
}
@Override
public void mouseDragged(MouseEvent e) {
propagate(e, getMouseMotionListeners(), MouseMotionListener::mouseDragged);
}
@Override
public void mouseWheelMoved(MouseWheelEvent e) {
propagate(e, getMouseWheelListeners(), MouseWheelListener::mouseWheelMoved);
}
private void propagate(MouseEvent mouseEvent, MouseListener[] listeners, BiConsumer<MouseListener, MouseEvent> distatcher) {
Point mousePoint = mouseEvent.getPoint();
try {
convertMouse(mousePoint);
MouseEvent newEvent = createMouseEvent(mouseEvent, mousePoint);
synchronized (ScaleAdaptablePanel.this) {
Arrays.stream(listeners).forEach(listener->distatcher.accept(listener,newEvent));
}
} catch (NoninvertibleTransformException e1) {
e1.printStackTrace();
}
}
private void propagate(MouseEvent mouseEvent, MouseMotionListener[] listeners, BiConsumer<MouseMotionListener, MouseEvent> distatcher) {
Point mousePoint = mouseEvent.getPoint();
try {
convertMouse(mousePoint);
MouseEvent newEvent = createMouseEvent(mouseEvent, mousePoint);
synchronized (ScaleAdaptablePanel.this) {
Arrays.stream(listeners).forEach(listener->distatcher.accept(listener,newEvent));
}
} catch (NoninvertibleTransformException e1) {
e1.printStackTrace();
}
}
private void propagate(MouseWheelEvent mouseEvent, MouseWheelListener[] listeners, BiConsumer<MouseWheelListener, MouseWheelEvent> distatcher) {
Point mousePoint = mouseEvent.getPoint();
try {
convertMouse(mousePoint);
MouseWheelEvent newEvent = createMouseEvent(mouseEvent, mousePoint);
synchronized (ScaleAdaptablePanel.this) {
Arrays.stream(listeners).forEach(listener->distatcher.accept(listener,newEvent));
}
} catch (NoninvertibleTransformException e1) {
e1.printStackTrace();
}
}
private MouseEvent createMouseEvent(MouseEvent e, Point p) {
return new MouseEvent(e.getComponent(), e.getID(), e.getWhen(), e.getModifiers(), p.x, p.y, e.getXOnScreen(), e.getYOnScreen(), e.getClickCount(), e.isPopupTrigger(), e.getButton());
}
private MouseWheelEvent createMouseEvent(MouseWheelEvent e, Point p) {
return new MouseWheelEvent(e.getComponent(), e.getID(), e.getWhen(), e.getModifiers(), p.x, p.y, e.getXOnScreen(), e.getYOnScreen(), e.getClickCount(), e.isPopupTrigger(), e.getScrollType(), e.getScrollAmount(), e.getWheelRotation(), e.getPreciseWheelRotation());
}
};
super.addMouseListener(mouseAdapter);
super.addMouseMotionListener(mouseAdapter);
super.addMouseWheelListener(mouseAdapter);
}
public void addComponentMouseListener(MouseListener listener) {
super.addMouseListener(listener);
}
public void removeComponentMouseListener(MouseListener l) {
super.removeMouseListener(l);
}
public void addComponentMotionListener(MouseMotionListener listener) {
super.addMouseMotionListener(listener);
}
public void removeComponentMotionListener(MouseMotionListener listener) {
super.removeMouseMotionListener(listener);
}
public void addComponentMouseWheelListener(MouseWheelListener listener) {
super.addMouseWheelListener(listener);
}
public void removeComponentMouseWheelListener(MouseWheelListener listener) {
super.removeMouseWheelListener(listener);
}
@Override
public synchronized MouseListener[] getMouseListeners() {
return eventlisteners.getListeners(MouseListener.class);
}
@Override
public synchronized void addMouseListener(MouseListener l) {
if (l == null) {
return;
}
eventlisteners.add(MouseListener.class, l);
}
@Override
public synchronized void removeMouseListener(MouseListener l) {
if (l == null) {
return;
}
eventlisteners.remove(MouseListener.class, l);
}
@Override
public synchronized MouseMotionListener[] getMouseMotionListeners() {
return eventlisteners.getListeners(MouseMotionListener.class);
}
@Override
public synchronized void addMouseMotionListener(MouseMotionListener l) {
if (l == null) {
return;
}
eventlisteners.add(MouseMotionListener.class, l);
}
@Override
public synchronized void removeMouseMotionListener(MouseMotionListener l) {
if (l == null) {
return;
}
eventlisteners.remove(MouseMotionListener.class, l);
}
@Override
public synchronized MouseWheelListener[] getMouseWheelListeners() {
return eventlisteners.getListeners(MouseWheelListener.class);
}
@Override
public synchronized void addMouseWheelListener(MouseWheelListener l) {
if (l == null) {
return;
}
eventlisteners.add(MouseWheelListener.class, l);
}
@Override
public synchronized void removeMouseWheelListener(MouseWheelListener l) {
if (l == null) {
return;
}
eventlisteners.remove(MouseWheelListener.class, l);
}
public void setProportional(boolean proportional) {
boolean old = this.proportional;
this.proportional=proportional;
if ( old!=proportional ) {
firePropertyChange("PROPORTIONAL", old, proportional);
repaint();
}
}
public boolean isProportional() {
return proportional;
}
public Point getAdapterMousePoint() {
Point point = getMousePosition();
try {
convertMouse(point);
} catch (NoninvertibleTransformException e) {
e.printStackTrace();
}
return point;
}
public void setAdaptable(boolean adaptable) {
boolean old = this.adaptable;
this.adaptable=adaptable;
if ( old!=adaptable ) {
firePropertyChange("ADAPTABLE", old, adaptable);
repaint();
}
}
public boolean isAdaptable() {
return adaptable;
}
private Dimension getInnerDimension(Dimension dimension) {
Insets insets=getInsets();
return new Dimension(Math.max(0, dimension.width-insets.left-insets.right),
Math.max(0, dimension.height-insets.top-insets.bottom));
}
@Override
public void paint(Graphics g) {
super.paint(g);
if ( painter!=null) {
Graphics2D g2D = (Graphics2D) g.create();
Insets insets=getInsets();
g2D.transform(AffineTransform.getTranslateInstance(insets.left, insets.top));
if ( adaptable ) {
adapt(g2D);
}
painter.accept(g2D,this);
g2D.dispose();
}
}
private void adapt(Graphics2D g2d) {
proportionalAffineTransform(g2d, getInnerDimension(drawsize), getInnerDimension(getPreferredSize()));
if ( proportional ) {
adaptProportional(g2d);
}
else {
affineTransform(g2d, getInnerDimension(drawsize), getInnerDimension(getSize()));
}
}
private void adaptProportional(Graphics2D g2d) {
proportionalAffineTransform(g2d, getInnerDimension(drawsize), getInnerDimension(getSize()));
}
private void affineTransform(Graphics2D g2d, Dimension fromsize, Dimension tosize) {
g2d.transform(affineTransform(fromsize, tosize));
}
private AffineTransform affineTransform(Dimension fromsize, Dimension tosize) {
double sx = tosize.getWidth()/fromsize.getWidth();
double sy = tosize.getHeight()/fromsize.getHeight();
return AffineTransform.getScaleInstance(sx, sy);
}
private void proportionalAffineTransform(Graphics2D g2d, Dimension fromsize, Dimension tosize) {
g2d.transform(proportionalAffineTransform(fromsize,tosize));
}
private AffineTransform proportionalAffineTransform(Dimension fromsize, Dimension tosize) {
double sx = tosize.getWidth()/fromsize.getWidth();
double height = fromsize.getHeight()*sx;
if ( height > tosize.getHeight() ) {
sx = tosize.getHeight()/fromsize.getHeight();
}
return AffineTransform.getScaleInstance(sx, sx);
}
protected void convertMouse(Point point) throws NoninvertibleTransformException {
Insets insets=getInsets();
AffineTransform transform = AffineTransform.getTranslateInstance(insets.left, insets.top);
if ( adaptable ) {
transform.concatenate(proportionalAffineTransform(getInnerDimension(drawsize), getInnerDimension(getPreferredSize())));
if ( proportional ) {
transform.concatenate(proportionalAffineTransform(getInnerDimension(drawsize), getInnerDimension(getSize())));
}
else {
transform.concatenate(affineTransform(getInnerDimension(drawsize), getInnerDimension(getSize())));
}
}
transform.inverseTransform(point, point);
}
// démo
public static void main(String[] args) {
JFrame frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JPanel main = new JPanel(new BorderLayout());
Dimension dimension = new Dimension(260,180);
ScaleAdaptablePanel panel = new ScaleAdaptablePanel(ScaleAdaptablePanel::paint,dimension.width,dimension.height);
panel.setBorder(BorderFactory.createMatteBorder(10, 10, 10, 10,panel.getBackground()));
panel.setBackground(Color.WHITE);
panel.setPreferredSize(dimension);
panel.setEnabled(true);
MouseAdapter mouseAdapter = new MouseAdapter() {
Rectangle rectangle = new Rectangle(120, 80, 100, 40);
Ellipse2D oval = new Ellipse2D.Double(130, 20, 50, 50);
Rectangle imageBounds = image==null?null:new Rectangle(10,50, image.getWidth(panel), image.getHeight(panel));
@Override
public void mouseMoved(MouseEvent e) {
rectangleHover = rectangle.contains(e.getPoint());
ovalHover = oval.contains(e.getPoint());
int cursor;
if ( rectangleHover ) {
cursor = Cursor.HAND_CURSOR;
}
else if ( ovalHover ) {
cursor = Cursor.HAND_CURSOR;
}
else if ( imageBounds!=null && imageBounds.contains(e.getPoint()) ) {
cursor = Cursor.HAND_CURSOR;
}
else {
cursor = Cursor.getDefaultCursor().getType();
}
panel.setCursor(Cursor.getPredefinedCursor(cursor));
panel.repaint();
}
@Override
public void mouseClicked(MouseEvent e) {
if ( e.getClickCount()==1 && e.getButton()==MouseEvent.BUTTON1 ) {
toggleSelection(rectangle, e);
toggleSelection(oval, e);
toggleSelection(imageBounds, e);
panel.repaint();
}
}
private void toggleSelection(Shape shape, MouseEvent e) {
if ( shape!=null && shape.contains(e.getPoint()) ) {
if ( selection.contains(shape) ) {
selection.remove(shape);
}
else {
selection.add(shape);
}
}
}
};
panel.addMouseListener(mouseAdapter);
panel.addMouseMotionListener(mouseAdapter);
main.add(panel);
JPanel ui = new JPanel(new GridBagLayout());
JCheckBox checkboxProportional = new JCheckBox("Adaptation proportionelle");
checkboxProportional.setSelected(panel.isProportional());
checkboxProportional.addActionListener(e->panel.setProportional(checkboxProportional.isSelected()));
ui.add(checkboxProportional);
JCheckBox checkboxAdaptable = new JCheckBox("Adaptation");
checkboxAdaptable.setSelected(panel.isAdaptable());
checkboxAdaptable.addActionListener(e->panel.setAdaptable(checkboxAdaptable.isSelected()));
ui.add(checkboxAdaptable);
main.add(ui, BorderLayout.SOUTH);
frame.add(main);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
private static Image image = loadImage();
private static Image loadImage() {
try {
return ImageIO.read(ScaleAdaptablePanel.class.getResource("suricate.jpg"));
} catch (Throwable e) {
return null;
}
}
private static Font font = new Font("SansSerif",Font.PLAIN,40);
private static boolean rectangleHover;
private static boolean ovalHover;
private static Set<Shape> selection = new HashSet<>();
private static void paint(Graphics2D g, ImageObserver observable) {
/*g.setColor(Color.LIGHT_GRAY);
g.drawRect(0,0,240,160);*/
g.setColor(Color.BLUE);
g.setFont(font);
g.drawString("Hello", 20,30);
g.setColor(Color.RED);
g.drawRect(120, 80, 100, 40);
if ( !ovalHover ) {
g.setColor(Color.ORANGE);
g.fillOval(130, 20, 50, 50);
}
if( image!=null) {
g.drawImage(image,10,50,observable);
}
if ( !selection.isEmpty() ) {
g.setColor(Color.MAGENTA);
AlphaComposite alpha = AlphaComposite.SrcOver.derive(0.5f);
Graphics2D g2d = (Graphics2D) g.create();
try {
g2d.setStroke(new BasicStroke(3));
for(Shape selected : selection) {
g2d.draw(selected);
}
g2d.setComposite(alpha);
for(Shape selected : selection) {
g2d.fill(selected);
}
}
finally {
g2d.dispose();
}
}
if ( rectangleHover ) {
g.setColor(Color.YELLOW);
g.fillRect(120+1, 80+1, 100-2, 40-2);
}
if ( ovalHover ) {
g.setColor(Color.GREEN);
g.fillOval(130, 20, 50, 50);
}
}
// fin démo
} |
Partager