1 /* 2 * Copyright (c) 1995, 2002, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 package java.awt; 26 27 import java.awt.event.*; 28 import java.io.*; 29 30 /** 31 * <b>NOTE:</b> The <code>Event</code> class is obsolete and is 32 * available only for backwards compatilibility. It has been replaced 33 * by the <code>AWTEvent</code> class and its subclasses. 34 * <p> 35 * <code>Event</code> is a platform-independent class that 36 * encapsulates events from the platform's Graphical User 37 * Interface in the Java 1.0 event model. In Java 1.1 38 * and later versions, the <code>Event</code> class is maintained 39 * only for backwards compatibilty. The information in this 40 * class description is provided to assist programmers in 41 * converting Java 1.0 programs to the new event model. 42 * <p> 43 * In the Java 1.0 event model, an event contains an 44 * {@link Event#id} field 45 * that indicates what type of event it is and which other 46 * <code>Event</code> variables are relevant for the event. 47 * <p> 48 * For keyboard events, {@link Event#key} 49 * contains a value indicating which key was activated, and 50 * {@link Event#modifiers} contains the 51 * modifiers for that event. For the KEY_PRESS and KEY_RELEASE 52 * event ids, the value of <code>key</code> is the unicode 53 * character code for the key. For KEY_ACTION and 54 * KEY_ACTION_RELEASE, the value of <code>key</code> is 55 * one of the defined action-key identifiers in the 56 * <code>Event</code> class (<code>PGUP</code>, 57 * <code>PGDN</code>, <code>F1</code>, <code>F2</code>, etc). 58 * 59 * @author Sami Shaio 60 * @since JDK1.0 61 */ 62 public class Event implements java.io.Serializable { 63 private transient long data; 64 65 /* Modifier constants */ 66 67 /** 68 * This flag indicates that the Shift key was down when the event 69 * occurred. 70 */ 71 public static final int SHIFT_MASK = 1 << 0; 72 73 /** 74 * This flag indicates that the Control key was down when the event 75 * occurred. 76 */ 77 public static final int CTRL_MASK = 1 << 1; 78 79 /** 80 * This flag indicates that the Meta key was down when the event 81 * occurred. For mouse events, this flag indicates that the right 82 * button was pressed or released. 83 */ 84 public static final int META_MASK = 1 << 2; 85 86 /** 87 * This flag indicates that the Alt key was down when 88 * the event occurred. For mouse events, this flag indicates that the 89 * middle mouse button was pressed or released. 90 */ 91 public static final int ALT_MASK = 1 << 3; 92 93 /* Action keys */ 94 95 /** 96 * The Home key, a non-ASCII action key. 97 */ 98 public static final int HOME = 1000; 99 100 /** 101 * The End key, a non-ASCII action key. 102 */ 103 public static final int END = 1001; 104 105 /** 106 * The Page Up key, a non-ASCII action key. 107 */ 108 public static final int PGUP = 1002; 109 110 /** 111 * The Page Down key, a non-ASCII action key. 112 */ 113 public static final int PGDN = 1003; 114 115 /** 116 * The Up Arrow key, a non-ASCII action key. 117 */ 118 public static final int UP = 1004; 119 120 /** 121 * The Down Arrow key, a non-ASCII action key. 122 */ 123 public static final int DOWN = 1005; 124 125 /** 126 * The Left Arrow key, a non-ASCII action key. 127 */ 128 public static final int LEFT = 1006; 129 130 /** 131 * The Right Arrow key, a non-ASCII action key. 132 */ 133 public static final int RIGHT = 1007; 134 135 /** 136 * The F1 function key, a non-ASCII action key. 137 */ 138 public static final int F1 = 1008; 139 140 /** 141 * The F2 function key, a non-ASCII action key. 142 */ 143 public static final int F2 = 1009; 144 145 /** 146 * The F3 function key, a non-ASCII action key. 147 */ 148 public static final int F3 = 1010; 149 150 /** 151 * The F4 function key, a non-ASCII action key. 152 */ 153 public static final int F4 = 1011; 154 155 /** 156 * The F5 function key, a non-ASCII action key. 157 */ 158 public static final int F5 = 1012; 159 160 /** 161 * The F6 function key, a non-ASCII action key. 162 */ 163 public static final int F6 = 1013; 164 165 /** 166 * The F7 function key, a non-ASCII action key. 167 */ 168 public static final int F7 = 1014; 169 170 /** 171 * The F8 function key, a non-ASCII action key. 172 */ 173 public static final int F8 = 1015; 174 175 /** 176 * The F9 function key, a non-ASCII action key. 177 */ 178 public static final int F9 = 1016; 179 180 /** 181 * The F10 function key, a non-ASCII action key. 182 */ 183 public static final int F10 = 1017; 184 185 /** 186 * The F11 function key, a non-ASCII action key. 187 */ 188 public static final int F11 = 1018; 189 190 /** 191 * The F12 function key, a non-ASCII action key. 192 */ 193 public static final int F12 = 1019; 194 195 /** 196 * The Print Screen key, a non-ASCII action key. 197 */ 198 public static final int PRINT_SCREEN = 1020; 199 200 /** 201 * The Scroll Lock key, a non-ASCII action key. 202 */ 203 public static final int SCROLL_LOCK = 1021; 204 205 /** 206 * The Caps Lock key, a non-ASCII action key. 207 */ 208 public static final int CAPS_LOCK = 1022; 209 210 /** 211 * The Num Lock key, a non-ASCII action key. 212 */ 213 public static final int NUM_LOCK = 1023; 214 215 /** 216 * The Pause key, a non-ASCII action key. 217 */ 218 public static final int PAUSE = 1024; 219 220 /** 221 * The Insert key, a non-ASCII action key. 222 */ 223 public static final int INSERT = 1025; 224 225 /* Non-action keys */ 226 227 /** 228 * The Enter key. 229 */ 230 public static final int ENTER = '\n'; 231 232 /** 233 * The BackSpace key. 234 */ 235 public static final int BACK_SPACE = '\b'; 236 237 /** 238 * The Tab key. 239 */ 240 public static final int TAB = '\t'; 241 242 /** 243 * The Escape key. 244 */ 245 public static final int ESCAPE = 27; 246 247 /** 248 * The Delete key. 249 */ 250 public static final int DELETE = 127; 251 252 253 /* Base for all window events. */ 254 private static final int WINDOW_EVENT = 200; 255 256 /** 257 * The user has asked the window manager to kill the window. 258 */ 259 public static final int WINDOW_DESTROY = 1 + WINDOW_EVENT; 260 261 /** 262 * The user has asked the window manager to expose the window. 263 */ 264 public static final int WINDOW_EXPOSE = 2 + WINDOW_EVENT; 265 266 /** 267 * The user has asked the window manager to iconify the window. 268 */ 269 public static final int WINDOW_ICONIFY = 3 + WINDOW_EVENT; 270 271 /** 272 * The user has asked the window manager to de-iconify the window. 273 */ 274 public static final int WINDOW_DEICONIFY = 4 + WINDOW_EVENT; 275 276 /** 277 * The user has asked the window manager to move the window. 278 */ 279 public static final int WINDOW_MOVED = 5 + WINDOW_EVENT; 280 281 /* Base for all keyboard events. */ 282 private static final int KEY_EVENT = 400; 283 284 /** 285 * The user has pressed a normal key. 286 */ 287 public static final int KEY_PRESS = 1 + KEY_EVENT; 288 289 /** 290 * The user has released a normal key. 291 */ 292 public static final int KEY_RELEASE = 2 + KEY_EVENT; 293 294 /** 295 * The user has pressed a non-ASCII <em>action</em> key. 296 * The <code>key</code> field contains a value that indicates 297 * that the event occurred on one of the action keys, which 298 * comprise the 12 function keys, the arrow (cursor) keys, 299 * Page Up, Page Down, Home, End, Print Screen, Scroll Lock, 300 * Caps Lock, Num Lock, Pause, and Insert. 301 */ 302 public static final int KEY_ACTION = 3 + KEY_EVENT; 303 304 /** 305 * The user has released a non-ASCII <em>action</em> key. 306 * The <code>key</code> field contains a value that indicates 307 * that the event occurred on one of the action keys, which 308 * comprise the 12 function keys, the arrow (cursor) keys, 309 * Page Up, Page Down, Home, End, Print Screen, Scroll Lock, 310 * Caps Lock, Num Lock, Pause, and Insert. 311 */ 312 public static final int KEY_ACTION_RELEASE = 4 + KEY_EVENT; 313 314 /* Base for all mouse events. */ 315 private static final int MOUSE_EVENT = 500; 316 317 /** 318 * The user has pressed the mouse button. The <code>ALT_MASK</code> 319 * flag indicates that the middle button has been pressed. 320 * The <code>META_MASK</code>flag indicates that the 321 * right button has been pressed. 322 * @see java.awt.Event#ALT_MASK 323 * @see java.awt.Event#META_MASK 324 */ 325 public static final int MOUSE_DOWN = 1 + MOUSE_EVENT; 326 327 /** 328 * The user has released the mouse button. The <code>ALT_MASK</code> 329 * flag indicates that the middle button has been released. 330 * The <code>META_MASK</code>flag indicates that the 331 * right button has been released. 332 * @see java.awt.Event#ALT_MASK 333 * @see java.awt.Event#META_MASK 334 */ 335 public static final int MOUSE_UP = 2 + MOUSE_EVENT; 336 337 /** 338 * The mouse has moved with no button pressed. 339 */ 340 public static final int MOUSE_MOVE = 3 + MOUSE_EVENT; 341 342 /** 343 * The mouse has entered a component. 344 */ 345 public static final int MOUSE_ENTER = 4 + MOUSE_EVENT; 346 347 /** 348 * The mouse has exited a component. 349 */ 350 public static final int MOUSE_EXIT = 5 + MOUSE_EVENT; 351 352 /** 353 * The user has moved the mouse with a button pressed. The 354 * <code>ALT_MASK</code> flag indicates that the middle 355 * button is being pressed. The <code>META_MASK</code> flag indicates 356 * that the right button is being pressed. 357 * @see java.awt.Event#ALT_MASK 358 * @see java.awt.Event#META_MASK 359 */ 360 public static final int MOUSE_DRAG = 6 + MOUSE_EVENT; 361 362 363 /* Scrolling events */ 364 private static final int SCROLL_EVENT = 600; 365 366 /** 367 * The user has activated the <em>line up</em> 368 * area of a scroll bar. 369 */ 370 public static final int SCROLL_LINE_UP = 1 + SCROLL_EVENT; 371 372 /** 373 * The user has activated the <em>line down</em> 374 * area of a scroll bar. 375 */ 376 public static final int SCROLL_LINE_DOWN = 2 + SCROLL_EVENT; 377 378 /** 379 * The user has activated the <em>page up</em> 380 * area of a scroll bar. 381 */ 382 public static final int SCROLL_PAGE_UP = 3 + SCROLL_EVENT; 383 384 /** 385 * The user has activated the <em>page down</em> 386 * area of a scroll bar. 387 */ 388 public static final int SCROLL_PAGE_DOWN = 4 + SCROLL_EVENT; 389 390 /** 391 * The user has moved the bubble (thumb) in a scroll bar, 392 * moving to an "absolute" position, rather than to 393 * an offset from the last postion. 394 */ 395 public static final int SCROLL_ABSOLUTE = 5 + SCROLL_EVENT; 396 397 /** 398 * The scroll begin event. 399 */ 400 public static final int SCROLL_BEGIN = 6 + SCROLL_EVENT; 401 402 /** 403 * The scroll end event. 404 */ 405 public static final int SCROLL_END = 7 + SCROLL_EVENT; 406 407 /* List Events */ 408 private static final int LIST_EVENT = 700; 409 410 /** 411 * An item in a list has been selected. 412 */ 413 public static final int LIST_SELECT = 1 + LIST_EVENT; 414 415 /** 416 * An item in a list has been deselected. 417 */ 418 public static final int LIST_DESELECT = 2 + LIST_EVENT; 419 420 /* Misc Event */ 421 private static final int MISC_EVENT = 1000; 422 423 /** 424 * This event indicates that the user wants some action to occur. 425 */ 426 public static final int ACTION_EVENT = 1 + MISC_EVENT; 427 428 /** 429 * A file loading event. 430 */ 431 public static final int LOAD_FILE = 2 + MISC_EVENT; 432 433 /** 434 * A file saving event. 435 */ 436 public static final int SAVE_FILE = 3 + MISC_EVENT; 437 438 /** 439 * A component gained the focus. 440 */ 441 public static final int GOT_FOCUS = 4 + MISC_EVENT; 442 443 /** 444 * A component lost the focus. 445 */ 446 public static final int LOST_FOCUS = 5 + MISC_EVENT; 447 448 /** 449 * The target component. This indicates the component over which the 450 * event occurred or with which the event is associated. 451 * This object has been replaced by AWTEvent.getSource() 452 * 453 * @serial 454 * @see java.awt.AWTEvent#getSource() 455 */ 456 public Object target; 457 458 /** 459 * The time stamp. 460 * Replaced by InputEvent.getWhen(). 461 * 462 * @serial 463 * @see java.awt.event.InputEvent#getWhen() 464 */ 465 public long when; 466 467 /** 468 * Indicates which type of event the event is, and which 469 * other <code>Event</code> variables are relevant for the event. 470 * This has been replaced by AWTEvent.getID() 471 * 472 * @serial 473 * @see java.awt.AWTEvent#getID() 474 */ 475 public int id; 476 477 /** 478 * The <i>x</i> coordinate of the event. 479 * Replaced by MouseEvent.getX() 480 * 481 * @serial 482 * @see java.awt.event.MouseEvent#getX() 483 */ 484 public int x; 485 486 /** 487 * The <i>y</i> coordinate of the event. 488 * Replaced by MouseEvent.getY() 489 * 490 * @serial 491 * @see java.awt.event.MouseEvent#getY() 492 */ 493 public int y; 494 495 /** 496 * The key code of the key that was pressed in a keyboard event. 497 * This has been replaced by KeyEvent.getKeyCode() 498 * 499 * @serial 500 * @see java.awt.event.KeyEvent#getKeyCode() 501 */ 502 public int key; 503 504 /** 505 * The key character that was pressed in a keyboard event. 506 */ 507 // public char keyChar; 508 509 /** 510 * The state of the modifier keys. 511 * This is replaced with InputEvent.getModifiers() 512 * In java 1.1 MouseEvent and KeyEvent are subclasses 513 * of InputEvent. 514 * 515 * @serial 516 * @see java.awt.event.InputEvent#getModifiers() 517 */ 518 public int modifiers; 519 520 /** 521 * For <code>MOUSE_DOWN</code> events, this field indicates the 522 * number of consecutive clicks. For other events, its value is 523 * <code>0</code>. 524 * This field has been replaced by MouseEvent.getClickCount(). 525 * 526 * @serial 527 * @see java.awt.event.MouseEvent#getClickCount() 528 */ 529 public int clickCount; 530 531 /** 532 * An arbitrary argument of the event. The value of this field 533 * depends on the type of event. 534 * <code>arg</code> has been replaced by event specific property. 535 * 536 * @serial 537 */ 538 public Object arg; 539 540 /** 541 * The next event. This field is set when putting events into a 542 * linked list. 543 * This has been replaced by EventQueue. 544 * 545 * @serial 546 * @see java.awt.EventQueue 547 */ 548 public Event evt; 549 550 /* table for mapping old Event action keys to KeyEvent virtual keys. */ 551 private static final int actionKeyCodes[][] = { 552 /* virtual key action key */ 553 { KeyEvent.VK_HOME, Event.HOME }, 554 { KeyEvent.VK_END, Event.END }, 555 { KeyEvent.VK_PAGE_UP, Event.PGUP }, 556 { KeyEvent.VK_PAGE_DOWN, Event.PGDN }, 557 { KeyEvent.VK_UP, Event.UP }, 558 { KeyEvent.VK_DOWN, Event.DOWN }, 559 { KeyEvent.VK_LEFT, Event.LEFT }, 560 { KeyEvent.VK_RIGHT, Event.RIGHT }, 561 { KeyEvent.VK_F1, Event.F1 }, 562 { KeyEvent.VK_F2, Event.F2 }, 563 { KeyEvent.VK_F3, Event.F3 }, 564 { KeyEvent.VK_F4, Event.F4 }, 565 { KeyEvent.VK_F5, Event.F5 }, 566 { KeyEvent.VK_F6, Event.F6 }, 567 { KeyEvent.VK_F7, Event.F7 }, 568 { KeyEvent.VK_F8, Event.F8 }, 569 { KeyEvent.VK_F9, Event.F9 }, 570 { KeyEvent.VK_F10, Event.F10 }, 571 { KeyEvent.VK_F11, Event.F11 }, 572 { KeyEvent.VK_F12, Event.F12 }, 573 { KeyEvent.VK_PRINTSCREEN, Event.PRINT_SCREEN }, 574 { KeyEvent.VK_SCROLL_LOCK, Event.SCROLL_LOCK }, 575 { KeyEvent.VK_CAPS_LOCK, Event.CAPS_LOCK }, 576 { KeyEvent.VK_NUM_LOCK, Event.NUM_LOCK }, 577 { KeyEvent.VK_PAUSE, Event.PAUSE }, 578 { KeyEvent.VK_INSERT, Event.INSERT } 579 }; 580 581 /** 582 * This field controls whether or not the event is sent back 583 * down to the peer once the target has processed it - 584 * false means it's sent to the peer, true means it's not. 585 * 586 * @serial 587 * @see #isConsumed() 588 */ 589 private boolean consumed = false; 590 591 /* 592 * JDK 1.1 serialVersionUID 593 */ 594 private static final long serialVersionUID = 5488922509400504703L; 595 596 static { 597 /* ensure that the necessary native libraries are loaded */ 598 Toolkit.loadLibraries(); 599 if (!GraphicsEnvironment.isHeadless()) { 600 initIDs(); 601 } 602 } 603 604 /** 605 * Initialize JNI field and method IDs for fields that may be 606 accessed from C. 607 */ 608 private static native void initIDs(); 609 610 /** 611 * <b>NOTE:</b> The <code>Event</code> class is obsolete and is 612 * available only for backwards compatilibility. It has been replaced 613 * by the <code>AWTEvent</code> class and its subclasses. 614 * <p> 615 * Creates an instance of <code>Event</code> with the specified target 616 * component, time stamp, event type, <i>x</i> and <i>y</i> 617 * coordinates, keyboard key, state of the modifier keys, and 618 * argument. 619 * @param target the target component. 620 * @param when the time stamp. 621 * @param id the event type. 622 * @param x the <i>x</i> coordinate. 623 * @param y the <i>y</i> coordinate. 624 * @param key the key pressed in a keyboard event. 625 * @param modifiers the state of the modifier keys. 626 * @param arg the specified argument. 627 */ 628 public Event(Object target, long when, int id, int x, int y, int key, 629 int modifiers, Object arg) { 630 this.target = target; 631 this.when = when; 632 this.id = id; 633 this.x = x; 634 this.y = y; 635 this.key = key; 636 this.modifiers = modifiers; 637 this.arg = arg; 638 this.data = 0; 639 this.clickCount = 0; 640 switch(id) { 641 case ACTION_EVENT: 642 case WINDOW_DESTROY: 643 case WINDOW_ICONIFY: 644 case WINDOW_DEICONIFY: 645 case WINDOW_MOVED: 646 case SCROLL_LINE_UP: 647 case SCROLL_LINE_DOWN: 648 case SCROLL_PAGE_UP: 649 case SCROLL_PAGE_DOWN: 650 case SCROLL_ABSOLUTE: 651 case SCROLL_BEGIN: 652 case SCROLL_END: 653 case LIST_SELECT: 654 case LIST_DESELECT: 655 consumed = true; // these types are not passed back to peer 656 break; 657 default: 658 } 659 } 660 661 /** 662 * <b>NOTE:</b> The <code>Event</code> class is obsolete and is 663 * available only for backwards compatilibility. It has been replaced 664 * by the <code>AWTEvent</code> class and its subclasses. 665 * <p> 666 * Creates an instance of <code>Event</code>, with the specified target 667 * component, time stamp, event type, <i>x</i> and <i>y</i> 668 * coordinates, keyboard key, state of the modifier keys, and an 669 * argument set to <code>null</code>. 670 * @param target the target component. 671 * @param when the time stamp. 672 * @param id the event type. 673 * @param x the <i>x</i> coordinate. 674 * @param y the <i>y</i> coordinate. 675 * @param key the key pressed in a keyboard event. 676 * @param modifiers the state of the modifier keys. 677 */ 678 public Event(Object target, long when, int id, int x, int y, int key, int modifiers) { 679 this(target, when, id, x, y, key, modifiers, null); 680 } 681 682 /** 683 * <b>NOTE:</b> The <code>Event</code> class is obsolete and is 684 * available only for backwards compatilibility. It has been replaced 685 * by the <code>AWTEvent</code> class and its subclasses. 686 * <p> 687 * Creates an instance of <code>Event</code> with the specified 688 * target component, event type, and argument. 689 * @param target the target component. 690 * @param id the event type. 691 * @param arg the specified argument. 692 */ 693 public Event(Object target, int id, Object arg) { 694 this(target, 0, id, 0, 0, 0, 0, arg); 695 } 696 697 /** 698 * <b>NOTE:</b> The <code>Event</code> class is obsolete and is 699 * available only for backwards compatilibility. It has been replaced 700 * by the <code>AWTEvent</code> class and its subclasses. 701 * <p> 702 * Translates this event so that its <i>x</i> and <i>y</i> 703 * coordinates are increased by <i>dx</i> and <i>dy</i>, 704 * respectively. 705 * <p> 706 * This method translates an event relative to the given component. 707 * This involves, at a minimum, translating the coordinates into the 708 * local coordinate system of the given component. It may also involve 709 * translating a region in the case of an expose event. 710 * @param dx the distance to translate the <i>x</i> coordinate. 711 * @param dy the distance to translate the <i>y</i> coordinate. 712 */ 713 public void translate(int dx, int dy) { 714 this.x += dx; 715 this.y += dy; 716 } 717 718 /** 719 * <b>NOTE:</b> The <code>Event</code> class is obsolete and is 720 * available only for backwards compatilibility. It has been replaced 721 * by the <code>AWTEvent</code> class and its subclasses. 722 * <p> 723 * Checks if the Shift key is down. 724 * @return <code>true</code> if the key is down; 725 * <code>false</code> otherwise. 726 * @see java.awt.Event#modifiers 727 * @see java.awt.Event#controlDown 728 * @see java.awt.Event#metaDown 729 */ 730 public boolean shiftDown() { 731 return (modifiers & SHIFT_MASK) != 0; 732 } 733 734 /** 735 * <b>NOTE:</b> The <code>Event</code> class is obsolete and is 736 * available only for backwards compatilibility. It has been replaced 737 * by the <code>AWTEvent</code> class and its subclasses. 738 * <p> 739 * Checks if the Control key is down. 740 * @return <code>true</code> if the key is down; 741 * <code>false</code> otherwise. 742 * @see java.awt.Event#modifiers 743 * @see java.awt.Event#shiftDown 744 * @see java.awt.Event#metaDown 745 */ 746 public boolean controlDown() { 747 return (modifiers & CTRL_MASK) != 0; 748 } 749 750 /** 751 * <b>NOTE:</b> The <code>Event</code> class is obsolete and is 752 * available only for backwards compatilibility. It has been replaced 753 * by the <code>AWTEvent</code> class and its subclasses. 754 * <p> 755 * Checks if the Meta key is down. 756 * 757 * @return <code>true</code> if the key is down; 758 * <code>false</code> otherwise. 759 * @see java.awt.Event#modifiers 760 * @see java.awt.Event#shiftDown 761 * @see java.awt.Event#controlDown 762 */ 763 public boolean metaDown() { 764 return (modifiers & META_MASK) != 0; 765 } 766 767 /** 768 * <b>NOTE:</b> The <code>Event</code> class is obsolete and is 769 * available only for backwards compatilibility. It has been replaced 770 * by the <code>AWTEvent</code> class and its subclasses. 771 */ 772 void consume() { 773 switch(id) { 774 case KEY_PRESS: 775 case KEY_RELEASE: 776 case KEY_ACTION: 777 case KEY_ACTION_RELEASE: 778 consumed = true; 779 break; 780 default: 781 // event type cannot be consumed 782 } 783 } 784 785 /** 786 * <b>NOTE:</b> The <code>Event</code> class is obsolete and is 787 * available only for backwards compatilibility. It has been replaced 788 * by the <code>AWTEvent</code> class and its subclasses. 789 */ 790 boolean isConsumed() { 791 return consumed; 792 } 793 794 /* 795 * <b>NOTE:</b> The <code>Event</code> class is obsolete and is 796 * available only for backwards compatilibility. It has been replaced 797 * by the <code>AWTEvent</code> class and its subclasses. 798 * <p> 799 * Returns the integer key-code associated with the key in this event, 800 * as described in java.awt.Event. 801 */ 802 static int getOldEventKey(KeyEvent e) { 803 int keyCode = e.getKeyCode(); 804 for (int i = 0; i < actionKeyCodes.length; i++) { 805 if (actionKeyCodes[i][0] == keyCode) { 806 return actionKeyCodes[i][1]; 807 } 808 } 809 return (int)e.getKeyChar(); 810 } 811 812 /* 813 * <b>NOTE:</b> The <code>Event</code> class is obsolete and is 814 * available only for backwards compatilibility. It has been replaced 815 * by the <code>AWTEvent</code> class and its subclasses. 816 * <p> 817 * Returns a new KeyEvent char which corresponds to the int key 818 * of this old event. 819 */ 820 char getKeyEventChar() { 821 for (int i = 0; i < actionKeyCodes.length; i++) { 822 if (actionKeyCodes[i][1] == key) { 823 return KeyEvent.CHAR_UNDEFINED; 824 } 825 } 826 return (char)key; 827 } 828 829 /** 830 * <b>NOTE:</b> The <code>Event</code> class is obsolete and is 831 * available only for backwards compatilibility. It has been replaced 832 * by the <code>AWTEvent</code> class and its subclasses. 833 * <p> 834 * Returns a string representing the state of this <code>Event</code>. 835 * This method is intended to be used only for debugging purposes, and the 836 * content and format of the returned string may vary between 837 * implementations. The returned string may be empty but may not be 838 * <code>null</code>. 839 * 840 * @return the parameter string of this event 841 */ 842 protected String paramString() { 843 String str = "id=" + id + ",x=" + x + ",y=" + y; 844 if (key != 0) { 845 str += ",key=" + key; 846 } 847 if (shiftDown()) { 848 str += ",shift"; 849 } 850 if (controlDown()) { 851 str += ",control"; 852 } 853 if (metaDown()) { 854 str += ",meta"; 855 } 856 if (target != null) { 857 str += ",target=" + target; 858 } 859 if (arg != null) { 860 str += ",arg=" + arg; 861 } 862 return str; 863 } 864 865 /** 866 * <b>NOTE:</b> The <code>Event</code> class is obsolete and is 867 * available only for backwards compatilibility. It has been replaced 868 * by the <code>AWTEvent</code> class and its subclasses. 869 * <p> 870 * Returns a representation of this event's values as a string. 871 * @return a string that represents the event and the values 872 * of its member fields. 873 * @see java.awt.Event#paramString 874 * @since JDK1.1 875 */ 876 public String toString() { 877 return getClass().getName() + "[" + paramString() + "]"; 878 } 879 }