J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1995-2002 Sun Microsystems, Inc. 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. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any 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 class is obsolete and is |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 | } |