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7d4115a5 | 1 | /** |
7b5261bc | 2 | * Jexer - Java Text User Interface |
7d4115a5 KL |
3 | * |
4 | * License: LGPLv3 or later | |
5 | * | |
7b5261bc KL |
6 | * This module is licensed under the GNU Lesser General Public License |
7 | * Version 3. Please see the file "COPYING" in this directory for more | |
8 | * information about the GNU Lesser General Public License Version 3. | |
7d4115a5 KL |
9 | * |
10 | * Copyright (C) 2015 Kevin Lamonte | |
11 | * | |
12 | * This program is free software; you can redistribute it and/or | |
13 | * modify it under the terms of the GNU Lesser General Public License | |
14 | * as published by the Free Software Foundation; either version 3 of | |
15 | * the License, or (at your option) any later version. | |
16 | * | |
17 | * This program is distributed in the hope that it will be useful, but | |
18 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
20 | * General Public License for more details. | |
21 | * | |
22 | * You should have received a copy of the GNU Lesser General Public | |
23 | * License along with this program; if not, see | |
24 | * http://www.gnu.org/licenses/, or write to the Free Software | |
25 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA | |
26 | * 02110-1301 USA | |
7b5261bc KL |
27 | * |
28 | * @author Kevin Lamonte [kevin.lamonte@gmail.com] | |
29 | * @version 1 | |
7d4115a5 KL |
30 | */ |
31 | package jexer; | |
32 | ||
4328bb42 KL |
33 | import java.io.InputStream; |
34 | import java.io.OutputStream; | |
35 | import java.io.UnsupportedEncodingException; | |
a06459bd | 36 | import java.util.Collections; |
d502a0e9 | 37 | import java.util.Date; |
e826b451 | 38 | import java.util.HashMap; |
c6940ed9 | 39 | import java.util.ArrayList; |
4328bb42 KL |
40 | import java.util.LinkedList; |
41 | import java.util.List; | |
e826b451 | 42 | import java.util.Map; |
4328bb42 KL |
43 | |
44 | import jexer.bits.CellAttributes; | |
45 | import jexer.bits.ColorTheme; | |
46 | import jexer.bits.GraphicsChars; | |
47 | import jexer.event.TCommandEvent; | |
48 | import jexer.event.TInputEvent; | |
49 | import jexer.event.TKeypressEvent; | |
fca67db0 | 50 | import jexer.event.TMenuEvent; |
4328bb42 KL |
51 | import jexer.event.TMouseEvent; |
52 | import jexer.event.TResizeEvent; | |
53 | import jexer.backend.Backend; | |
1ac2ccb1 | 54 | import jexer.backend.AWTBackend; |
4328bb42 | 55 | import jexer.backend.ECMA48Backend; |
48e27807 | 56 | import jexer.io.Screen; |
928811d8 KL |
57 | import jexer.menu.TMenu; |
58 | import jexer.menu.TMenuItem; | |
4328bb42 KL |
59 | import static jexer.TCommand.*; |
60 | import static jexer.TKeypress.*; | |
61 | ||
7d4115a5 KL |
62 | /** |
63 | * TApplication sets up a full Text User Interface application. | |
64 | */ | |
65 | public class TApplication { | |
66 | ||
99144c71 KL |
67 | /** |
68 | * If true, emit thread stuff to System.err. | |
69 | */ | |
70 | private static final boolean debugThreads = false; | |
71 | ||
a83fea2b KL |
72 | /** |
73 | * If true, emit events being processed to System.err. | |
74 | */ | |
75 | private static final boolean debugEvents = false; | |
76 | ||
c6940ed9 KL |
77 | /** |
78 | * WidgetEventHandler is the main event consumer loop. There are at most | |
79 | * two such threads in existence: the primary for normal case and a | |
80 | * secondary that is used for TMessageBox, TInputBox, and similar. | |
81 | */ | |
82 | private class WidgetEventHandler implements Runnable { | |
83 | /** | |
84 | * The main application. | |
85 | */ | |
86 | private TApplication application; | |
87 | ||
88 | /** | |
89 | * Whether or not this WidgetEventHandler is the primary or secondary | |
90 | * thread. | |
91 | */ | |
92 | private boolean primary = true; | |
93 | ||
94 | /** | |
95 | * Public constructor. | |
96 | * | |
97 | * @param application the main application | |
98 | * @param primary if true, this is the primary event handler thread | |
99 | */ | |
100 | public WidgetEventHandler(final TApplication application, | |
101 | final boolean primary) { | |
102 | ||
103 | this.application = application; | |
104 | this.primary = primary; | |
105 | } | |
106 | ||
107 | /** | |
108 | * The consumer loop. | |
109 | */ | |
110 | public void run() { | |
111 | ||
112 | // Loop forever | |
113 | while (!application.quit) { | |
114 | ||
115 | // Wait until application notifies me | |
116 | while (!application.quit) { | |
117 | try { | |
118 | synchronized (application.drainEventQueue) { | |
119 | if (application.drainEventQueue.size() > 0) { | |
120 | break; | |
121 | } | |
122 | } | |
92554d64 KL |
123 | |
124 | synchronized (this) { | |
bd8d51fa KL |
125 | if (debugThreads) { |
126 | System.err.printf("%s %s sleep\n", this, | |
127 | primary ? "primary" : "secondary"); | |
128 | } | |
92554d64 KL |
129 | |
130 | this.wait(); | |
131 | ||
bd8d51fa KL |
132 | if (debugThreads) { |
133 | System.err.printf("%s %s AWAKE\n", this, | |
134 | primary ? "primary" : "secondary"); | |
135 | } | |
92554d64 | 136 | |
c6940ed9 KL |
137 | if ((!primary) |
138 | && (application.secondaryEventReceiver == null) | |
139 | ) { | |
92554d64 KL |
140 | // Secondary thread, emergency exit. If we |
141 | // got here then something went wrong with | |
142 | // the handoff between yield() and | |
143 | // closeWindow(). | |
92554d64 KL |
144 | synchronized (application.primaryEventHandler) { |
145 | application.primaryEventHandler.notify(); | |
146 | } | |
147 | application.secondaryEventHandler = null; | |
bd8d51fa KL |
148 | throw new RuntimeException( |
149 | "secondary exited at wrong time"); | |
c6940ed9 KL |
150 | } |
151 | break; | |
152 | } | |
153 | } catch (InterruptedException e) { | |
154 | // SQUASH | |
155 | } | |
156 | } | |
157 | ||
158 | // Pull all events off the queue | |
159 | for (;;) { | |
160 | TInputEvent event = null; | |
161 | synchronized (application.drainEventQueue) { | |
162 | if (application.drainEventQueue.size() == 0) { | |
163 | break; | |
164 | } | |
165 | event = application.drainEventQueue.remove(0); | |
166 | } | |
99144c71 KL |
167 | // Wait for drawAll() or doIdle() to be done, then handle |
168 | // the event. | |
169 | boolean oldLock = lockHandleEvent(); | |
170 | assert (oldLock == false); | |
bd8d51fa | 171 | application.repaint = true; |
c6940ed9 KL |
172 | if (primary) { |
173 | primaryHandleEvent(event); | |
174 | } else { | |
175 | secondaryHandleEvent(event); | |
176 | } | |
177 | if ((!primary) | |
178 | && (application.secondaryEventReceiver == null) | |
179 | ) { | |
99144c71 KL |
180 | // Secondary thread, time to exit. |
181 | ||
182 | // DO NOT UNLOCK. Primary thread just came back from | |
183 | // primaryHandleEvent() and will unlock in the else | |
92554d64 KL |
184 | // block below. Just wake it up. |
185 | synchronized (application.primaryEventHandler) { | |
186 | application.primaryEventHandler.notify(); | |
187 | } | |
188 | // Now eliminate my reference so that | |
189 | // wakeEventHandler() resumes working on the primary. | |
190 | application.secondaryEventHandler = null; | |
191 | ||
192 | // All done! | |
c6940ed9 | 193 | return; |
99144c71 KL |
194 | } else { |
195 | // Unlock. Either I am primary thread, or I am | |
196 | // secondary thread and still running. | |
197 | oldLock = unlockHandleEvent(); | |
198 | assert (oldLock == true); | |
c6940ed9 | 199 | } |
92554d64 KL |
200 | } // for (;;) |
201 | ||
202 | // I have done some work of some kind. Tell the main run() | |
203 | // loop to wake up now. | |
204 | synchronized (application) { | |
205 | application.notify(); | |
c6940ed9 | 206 | } |
92554d64 | 207 | |
c6940ed9 KL |
208 | } // while (true) (main runnable loop) |
209 | } | |
210 | } | |
211 | ||
212 | /** | |
213 | * The primary event handler thread. | |
214 | */ | |
92554d64 | 215 | private volatile WidgetEventHandler primaryEventHandler; |
c6940ed9 KL |
216 | |
217 | /** | |
218 | * The secondary event handler thread. | |
219 | */ | |
92554d64 | 220 | private volatile WidgetEventHandler secondaryEventHandler; |
c6940ed9 KL |
221 | |
222 | /** | |
223 | * The widget receiving events from the secondary event handler thread. | |
224 | */ | |
92554d64 | 225 | private volatile TWidget secondaryEventReceiver; |
c6940ed9 | 226 | |
99144c71 KL |
227 | /** |
228 | * Spinlock for the primary and secondary event handlers. | |
229 | * WidgetEventHandler.run() is responsible for setting this value. | |
230 | */ | |
231 | private volatile boolean insideHandleEvent = false; | |
232 | ||
92554d64 KL |
233 | /** |
234 | * Wake the sleeping active event handler. | |
235 | */ | |
236 | private void wakeEventHandler() { | |
237 | if (secondaryEventHandler != null) { | |
238 | synchronized (secondaryEventHandler) { | |
239 | secondaryEventHandler.notify(); | |
240 | } | |
241 | } else { | |
242 | assert (primaryEventHandler != null); | |
243 | synchronized (primaryEventHandler) { | |
244 | primaryEventHandler.notify(); | |
245 | } | |
246 | } | |
247 | } | |
248 | ||
99144c71 KL |
249 | /** |
250 | * Set the insideHandleEvent flag to true. lockoutEventHandlers() will | |
251 | * spin indefinitely until unlockHandleEvent() is called. | |
252 | * | |
253 | * @return the old value of insideHandleEvent | |
254 | */ | |
255 | private boolean lockHandleEvent() { | |
256 | if (debugThreads) { | |
257 | System.err.printf(" >> lockHandleEvent(): oldValue %s", | |
258 | insideHandleEvent); | |
259 | } | |
260 | boolean oldValue = true; | |
261 | ||
262 | synchronized (this) { | |
263 | // Wait for TApplication.run() to finish using the global state | |
264 | // before allowing further event processing. | |
bd8d51fa | 265 | while (lockoutHandleEvent == true) {} |
99144c71 KL |
266 | |
267 | oldValue = insideHandleEvent; | |
268 | insideHandleEvent = true; | |
269 | } | |
270 | ||
271 | if (debugThreads) { | |
272 | System.err.printf(" ***\n"); | |
273 | } | |
274 | return oldValue; | |
275 | } | |
276 | ||
277 | /** | |
278 | * Set the insideHandleEvent flag to false. lockoutEventHandlers() will | |
279 | * spin indefinitely until unlockHandleEvent() is called. | |
280 | * | |
281 | * @return the old value of insideHandleEvent | |
282 | */ | |
283 | private boolean unlockHandleEvent() { | |
284 | if (debugThreads) { | |
285 | System.err.printf(" << unlockHandleEvent(): oldValue %s\n", | |
286 | insideHandleEvent); | |
287 | } | |
288 | synchronized (this) { | |
289 | boolean oldValue = insideHandleEvent; | |
290 | insideHandleEvent = false; | |
291 | return oldValue; | |
292 | } | |
293 | } | |
294 | ||
295 | /** | |
296 | * Spinlock for the primary and secondary event handlers. When true, the | |
297 | * event handlers will spinlock wait before calling handleEvent(). | |
298 | */ | |
299 | private volatile boolean lockoutHandleEvent = false; | |
300 | ||
301 | /** | |
302 | * TApplication.run() needs to be able rely on the global data structures | |
303 | * being intact when calling doIdle() and drawAll(). Tell the event | |
304 | * handlers to wait for an unlock before handling their events. | |
305 | */ | |
306 | private void stopEventHandlers() { | |
307 | if (debugThreads) { | |
308 | System.err.printf(">> stopEventHandlers()"); | |
309 | } | |
310 | ||
311 | lockoutHandleEvent = true; | |
312 | // Wait for the last event to finish processing before returning | |
313 | // control to TApplication.run(). | |
bd8d51fa | 314 | while (insideHandleEvent == true) {} |
99144c71 KL |
315 | |
316 | if (debugThreads) { | |
317 | System.err.printf(" XXX\n"); | |
318 | } | |
319 | } | |
320 | ||
321 | /** | |
322 | * TApplication.run() needs to be able rely on the global data structures | |
323 | * being intact when calling doIdle() and drawAll(). Tell the event | |
324 | * handlers that it is now OK to handle their events. | |
325 | */ | |
326 | private void startEventHandlers() { | |
327 | if (debugThreads) { | |
328 | System.err.printf("<< startEventHandlers()\n"); | |
329 | } | |
330 | lockoutHandleEvent = false; | |
331 | } | |
332 | ||
7d4115a5 | 333 | /** |
4328bb42 KL |
334 | * Access to the physical screen, keyboard, and mouse. |
335 | */ | |
7b5261bc | 336 | private Backend backend; |
4328bb42 | 337 | |
48e27807 KL |
338 | /** |
339 | * Get the Screen. | |
340 | * | |
341 | * @return the Screen | |
342 | */ | |
343 | public final Screen getScreen() { | |
344 | return backend.getScreen(); | |
345 | } | |
346 | ||
4328bb42 | 347 | /** |
7b5261bc | 348 | * Actual mouse coordinate X. |
4328bb42 KL |
349 | */ |
350 | private int mouseX; | |
351 | ||
352 | /** | |
7b5261bc | 353 | * Actual mouse coordinate Y. |
4328bb42 KL |
354 | */ |
355 | private int mouseY; | |
356 | ||
bd8d51fa KL |
357 | /** |
358 | * Old version of mouse coordinate X. | |
359 | */ | |
360 | private int oldMouseX; | |
361 | ||
362 | /** | |
363 | * Old version mouse coordinate Y. | |
364 | */ | |
365 | private int oldMouseY; | |
366 | ||
4328bb42 | 367 | /** |
8e688b92 | 368 | * Event queue that is filled by run(). |
4328bb42 | 369 | */ |
8e688b92 KL |
370 | private List<TInputEvent> fillEventQueue; |
371 | ||
372 | /** | |
373 | * Event queue that will be drained by either primary or secondary | |
374 | * Thread. | |
375 | */ | |
376 | private List<TInputEvent> drainEventQueue; | |
4328bb42 | 377 | |
fca67db0 KL |
378 | /** |
379 | * Top-level menus in this application. | |
380 | */ | |
381 | private List<TMenu> menus; | |
382 | ||
383 | /** | |
384 | * Stack of activated sub-menus in this application. | |
385 | */ | |
386 | private List<TMenu> subMenus; | |
387 | ||
388 | /** | |
389 | * The currently acive menu. | |
390 | */ | |
391 | private TMenu activeMenu = null; | |
392 | ||
e826b451 KL |
393 | /** |
394 | * Active keyboard accelerators. | |
395 | */ | |
396 | private Map<TKeypress, TMenuItem> accelerators; | |
397 | ||
4328bb42 KL |
398 | /** |
399 | * Windows and widgets pull colors from this ColorTheme. | |
400 | */ | |
7b5261bc KL |
401 | private ColorTheme theme; |
402 | ||
403 | /** | |
404 | * Get the color theme. | |
405 | * | |
406 | * @return the theme | |
407 | */ | |
408 | public final ColorTheme getTheme() { | |
409 | return theme; | |
410 | } | |
4328bb42 | 411 | |
a06459bd KL |
412 | /** |
413 | * The top-level windows (but not menus). | |
414 | */ | |
fca67db0 | 415 | private List<TWindow> windows; |
a06459bd | 416 | |
d502a0e9 KL |
417 | /** |
418 | * Timers that are being ticked. | |
419 | */ | |
420 | private List<TTimer> timers; | |
421 | ||
4328bb42 KL |
422 | /** |
423 | * When true, exit the application. | |
424 | */ | |
92554d64 | 425 | private volatile boolean quit = false; |
4328bb42 KL |
426 | |
427 | /** | |
428 | * When true, repaint the entire screen. | |
429 | */ | |
92554d64 | 430 | private volatile boolean repaint = true; |
4328bb42 | 431 | |
4328bb42 | 432 | /** |
7b5261bc KL |
433 | * Y coordinate of the top edge of the desktop. For now this is a |
434 | * constant. Someday it would be nice to have a multi-line menu or | |
435 | * toolbars. | |
4328bb42 | 436 | */ |
48e27807 KL |
437 | private static final int desktopTop = 1; |
438 | ||
439 | /** | |
440 | * Get Y coordinate of the top edge of the desktop. | |
441 | * | |
442 | * @return Y coordinate of the top edge of the desktop | |
443 | */ | |
444 | public final int getDesktopTop() { | |
445 | return desktopTop; | |
446 | } | |
4328bb42 KL |
447 | |
448 | /** | |
449 | * Y coordinate of the bottom edge of the desktop. | |
450 | */ | |
48e27807 KL |
451 | private int desktopBottom; |
452 | ||
453 | /** | |
454 | * Get Y coordinate of the bottom edge of the desktop. | |
455 | * | |
456 | * @return Y coordinate of the bottom edge of the desktop | |
457 | */ | |
458 | public final int getDesktopBottom() { | |
459 | return desktopBottom; | |
460 | } | |
4328bb42 KL |
461 | |
462 | /** | |
463 | * Public constructor. | |
464 | * | |
465 | * @param input an InputStream connected to the remote user, or null for | |
466 | * System.in. If System.in is used, then on non-Windows systems it will | |
467 | * be put in raw mode; shutdown() will (blindly!) put System.in in cooked | |
468 | * mode. input is always converted to a Reader with UTF-8 encoding. | |
469 | * @param output an OutputStream connected to the remote user, or null | |
470 | * for System.out. output is always converted to a Writer with UTF-8 | |
471 | * encoding. | |
7b5261bc KL |
472 | * @throws UnsupportedEncodingException if an exception is thrown when |
473 | * creating the InputStreamReader | |
4328bb42 | 474 | */ |
7b5261bc KL |
475 | public TApplication(final InputStream input, |
476 | final OutputStream output) throws UnsupportedEncodingException { | |
4328bb42 | 477 | |
30bd4abd KL |
478 | // AWT is the default backend on Windows unless explicitly overridden |
479 | // by jexer.AWT. | |
480 | boolean useAWT = false; | |
481 | if (System.getProperty("os.name").startsWith("Windows")) { | |
482 | useAWT = true; | |
483 | } | |
484 | if (System.getProperty("jexer.AWT") != null) { | |
485 | if (System.getProperty("jexer.AWT", "false").equals("true")) { | |
486 | useAWT = true; | |
487 | } else { | |
488 | useAWT = false; | |
489 | } | |
490 | } | |
491 | ||
492 | ||
493 | if (useAWT) { | |
92554d64 | 494 | backend = new AWTBackend(this); |
1ac2ccb1 | 495 | } else { |
92554d64 | 496 | backend = new ECMA48Backend(this, input, output); |
1ac2ccb1 | 497 | } |
8e688b92 KL |
498 | theme = new ColorTheme(); |
499 | desktopBottom = getScreen().getHeight() - 1; | |
c6940ed9 KL |
500 | fillEventQueue = new ArrayList<TInputEvent>(); |
501 | drainEventQueue = new ArrayList<TInputEvent>(); | |
8e688b92 KL |
502 | windows = new LinkedList<TWindow>(); |
503 | menus = new LinkedList<TMenu>(); | |
504 | subMenus = new LinkedList<TMenu>(); | |
d502a0e9 | 505 | timers = new LinkedList<TTimer>(); |
e826b451 | 506 | accelerators = new HashMap<TKeypress, TMenuItem>(); |
c6940ed9 KL |
507 | |
508 | // Setup the main consumer thread | |
509 | primaryEventHandler = new WidgetEventHandler(this, true); | |
510 | (new Thread(primaryEventHandler)).start(); | |
4328bb42 KL |
511 | } |
512 | ||
513 | /** | |
bd8d51fa KL |
514 | * Invert the cell color at a position. This is used to track the mouse. |
515 | * | |
516 | * @param x column position | |
517 | * @param y row position | |
4328bb42 | 518 | */ |
bd8d51fa KL |
519 | private void invertCell(final int x, final int y) { |
520 | synchronized (getScreen()) { | |
521 | CellAttributes attr = getScreen().getAttrXY(x, y); | |
522 | attr.setForeColor(attr.getForeColor().invert()); | |
523 | attr.setBackColor(attr.getBackColor().invert()); | |
524 | getScreen().putAttrXY(x, y, attr, false); | |
7b5261bc | 525 | } |
4328bb42 KL |
526 | } |
527 | ||
528 | /** | |
529 | * Draw everything. | |
530 | */ | |
7b5261bc | 531 | public final void drawAll() { |
99144c71 KL |
532 | if (debugThreads) { |
533 | System.err.printf("drawAll() enter\n"); | |
534 | } | |
535 | ||
bd8d51fa KL |
536 | if (!repaint) { |
537 | synchronized (getScreen()) { | |
538 | if ((oldMouseX != mouseX) || (oldMouseY != mouseY)) { | |
539 | // The only thing that has happened is the mouse moved. | |
540 | // Clear the old position and draw the new position. | |
541 | invertCell(oldMouseX, oldMouseY); | |
542 | invertCell(mouseX, mouseY); | |
543 | oldMouseX = mouseX; | |
544 | oldMouseY = mouseY; | |
545 | } | |
546 | } | |
547 | if (getScreen().isDirty()) { | |
548 | backend.flushScreen(); | |
549 | } | |
7b5261bc KL |
550 | return; |
551 | } | |
552 | ||
99144c71 KL |
553 | if (debugThreads) { |
554 | System.err.printf("drawAll() REDRAW\n"); | |
555 | } | |
556 | ||
7b5261bc KL |
557 | // If true, the cursor is not visible |
558 | boolean cursor = false; | |
559 | ||
560 | // Start with a clean screen | |
a06459bd | 561 | getScreen().clear(); |
7b5261bc KL |
562 | |
563 | // Draw the background | |
564 | CellAttributes background = theme.getColor("tapplication.background"); | |
a06459bd | 565 | getScreen().putAll(GraphicsChars.HATCH, background); |
7b5261bc | 566 | |
7b5261bc | 567 | // Draw each window in reverse Z order |
a06459bd KL |
568 | List<TWindow> sorted = new LinkedList<TWindow>(windows); |
569 | Collections.sort(sorted); | |
570 | Collections.reverse(sorted); | |
571 | for (TWindow window: sorted) { | |
572 | window.drawChildren(); | |
7b5261bc KL |
573 | } |
574 | ||
575 | // Draw the blank menubar line - reset the screen clipping first so | |
576 | // it won't trim it out. | |
a06459bd KL |
577 | getScreen().resetClipping(); |
578 | getScreen().hLineXY(0, 0, getScreen().getWidth(), ' ', | |
7b5261bc KL |
579 | theme.getColor("tmenu")); |
580 | // Now draw the menus. | |
581 | int x = 1; | |
fca67db0 | 582 | for (TMenu menu: menus) { |
7b5261bc KL |
583 | CellAttributes menuColor; |
584 | CellAttributes menuMnemonicColor; | |
fca67db0 | 585 | if (menu.getActive()) { |
7b5261bc KL |
586 | menuColor = theme.getColor("tmenu.highlighted"); |
587 | menuMnemonicColor = theme.getColor("tmenu.mnemonic.highlighted"); | |
588 | } else { | |
589 | menuColor = theme.getColor("tmenu"); | |
590 | menuMnemonicColor = theme.getColor("tmenu.mnemonic"); | |
591 | } | |
592 | // Draw the menu title | |
fca67db0 | 593 | getScreen().hLineXY(x, 0, menu.getTitle().length() + 2, ' ', |
7b5261bc | 594 | menuColor); |
fca67db0 | 595 | getScreen().putStrXY(x + 1, 0, menu.getTitle(), menuColor); |
7b5261bc | 596 | // Draw the highlight character |
fca67db0 KL |
597 | getScreen().putCharXY(x + 1 + menu.getMnemonic().getShortcutIdx(), |
598 | 0, menu.getMnemonic().getShortcut(), menuMnemonicColor); | |
7b5261bc | 599 | |
fca67db0 | 600 | if (menu.getActive()) { |
a06459bd | 601 | menu.drawChildren(); |
7b5261bc | 602 | // Reset the screen clipping so we can draw the next title. |
a06459bd | 603 | getScreen().resetClipping(); |
7b5261bc | 604 | } |
fca67db0 | 605 | x += menu.getTitle().length() + 2; |
7b5261bc KL |
606 | } |
607 | ||
a06459bd | 608 | for (TMenu menu: subMenus) { |
7b5261bc | 609 | // Reset the screen clipping so we can draw the next sub-menu. |
a06459bd KL |
610 | getScreen().resetClipping(); |
611 | menu.drawChildren(); | |
7b5261bc | 612 | } |
7b5261bc KL |
613 | |
614 | // Draw the mouse pointer | |
bd8d51fa | 615 | invertCell(mouseX, mouseY); |
7b5261bc | 616 | |
7b5261bc KL |
617 | // Place the cursor if it is visible |
618 | TWidget activeWidget = null; | |
a06459bd KL |
619 | if (sorted.size() > 0) { |
620 | activeWidget = sorted.get(sorted.size() - 1).getActiveChild(); | |
621 | if (activeWidget.visibleCursor()) { | |
622 | getScreen().putCursor(true, activeWidget.getCursorAbsoluteX(), | |
7b5261bc KL |
623 | activeWidget.getCursorAbsoluteY()); |
624 | cursor = true; | |
625 | } | |
626 | } | |
627 | ||
628 | // Kill the cursor | |
fca67db0 | 629 | if (!cursor) { |
a06459bd | 630 | getScreen().hideCursor(); |
7b5261bc | 631 | } |
7b5261bc KL |
632 | |
633 | // Flush the screen contents | |
634 | backend.flushScreen(); | |
635 | ||
636 | repaint = false; | |
4328bb42 KL |
637 | } |
638 | ||
639 | /** | |
7b5261bc | 640 | * Run this application until it exits. |
4328bb42 KL |
641 | */ |
642 | public final void run() { | |
7b5261bc KL |
643 | while (!quit) { |
644 | // Timeout is in milliseconds, so default timeout after 1 second | |
645 | // of inactivity. | |
92554d64 KL |
646 | long timeout = 0; |
647 | ||
648 | // If I've got no updates to render, wait for something from the | |
649 | // backend or a timer. | |
bd8d51fa KL |
650 | if (!repaint |
651 | && ((mouseX == oldMouseX) && (mouseY == oldMouseY)) | |
652 | ) { | |
92554d64 KL |
653 | // Never sleep longer than 100 millis, to get windows with |
654 | // background tasks an opportunity to update the display. | |
655 | timeout = getSleepTime(100); | |
656 | ||
657 | // See if there are any definitely events waiting to be | |
658 | // processed. If so, do not wait -- either there is I/O | |
659 | // coming in or the primary/secondary threads are still | |
660 | // working. | |
661 | synchronized (drainEventQueue) { | |
662 | if (drainEventQueue.size() > 0) { | |
663 | timeout = 0; | |
664 | } | |
665 | } | |
666 | synchronized (fillEventQueue) { | |
667 | if (fillEventQueue.size() > 0) { | |
668 | timeout = 0; | |
669 | } | |
8e688b92 KL |
670 | } |
671 | } | |
92554d64 KL |
672 | |
673 | if (timeout > 0) { | |
674 | // As of now, I've got nothing to do: no I/O, nothing from | |
675 | // the consumer threads, no timers that need to run ASAP. So | |
676 | // wait until either the backend or the consumer threads have | |
677 | // something to do. | |
678 | try { | |
679 | synchronized (this) { | |
680 | this.wait(timeout); | |
681 | } | |
682 | } catch (InterruptedException e) { | |
683 | // I'm awake and don't care why, let's see what's going | |
684 | // on out there. | |
8e688b92 | 685 | } |
bd8d51fa | 686 | repaint = true; |
7b5261bc KL |
687 | } |
688 | ||
8e688b92 | 689 | // Pull any pending I/O events |
92554d64 | 690 | backend.getEvents(fillEventQueue); |
8e688b92 KL |
691 | |
692 | // Dispatch each event to the appropriate handler, one at a time. | |
693 | for (;;) { | |
694 | TInputEvent event = null; | |
695 | synchronized (fillEventQueue) { | |
696 | if (fillEventQueue.size() == 0) { | |
697 | break; | |
698 | } | |
699 | event = fillEventQueue.remove(0); | |
700 | } | |
701 | metaHandleEvent(event); | |
702 | } | |
7b5261bc | 703 | |
92554d64 KL |
704 | // Wake a consumer thread if we have any pending events. |
705 | synchronized (drainEventQueue) { | |
706 | if (drainEventQueue.size() > 0) { | |
707 | wakeEventHandler(); | |
708 | } | |
709 | } | |
710 | ||
99144c71 KL |
711 | // Prevent stepping on the primary or secondary event handler. |
712 | stopEventHandlers(); | |
713 | ||
7b5261bc KL |
714 | // Process timers and call doIdle()'s |
715 | doIdle(); | |
716 | ||
717 | // Update the screen | |
87a17f3c KL |
718 | synchronized (getScreen()) { |
719 | drawAll(); | |
720 | } | |
99144c71 KL |
721 | |
722 | // Let the event handlers run again. | |
723 | startEventHandlers(); | |
7b5261bc | 724 | |
92554d64 KL |
725 | } // while (!quit) |
726 | ||
727 | // Shutdown the event consumer threads | |
728 | if (secondaryEventHandler != null) { | |
729 | synchronized (secondaryEventHandler) { | |
730 | secondaryEventHandler.notify(); | |
731 | } | |
732 | } | |
733 | if (primaryEventHandler != null) { | |
734 | synchronized (primaryEventHandler) { | |
735 | primaryEventHandler.notify(); | |
736 | } | |
7b5261bc KL |
737 | } |
738 | ||
92554d64 | 739 | // Shutdown the user I/O thread(s) |
7b5261bc | 740 | backend.shutdown(); |
92554d64 KL |
741 | |
742 | // Close all the windows. This gives them an opportunity to release | |
743 | // resources. | |
744 | closeAllWindows(); | |
745 | ||
4328bb42 KL |
746 | } |
747 | ||
748 | /** | |
749 | * Peek at certain application-level events, add to eventQueue, and wake | |
8e688b92 | 750 | * up the consuming Thread. |
4328bb42 | 751 | * |
8e688b92 | 752 | * @param event the input event to consume |
4328bb42 | 753 | */ |
8e688b92 | 754 | private void metaHandleEvent(final TInputEvent event) { |
7b5261bc | 755 | |
a83fea2b KL |
756 | if (debugEvents) { |
757 | System.err.printf(String.format("metaHandleEvents event: %s\n", | |
758 | event)); System.err.flush(); | |
759 | } | |
7b5261bc | 760 | |
8e688b92 KL |
761 | if (quit) { |
762 | // Do no more processing if the application is already trying | |
763 | // to exit. | |
764 | return; | |
765 | } | |
7b5261bc | 766 | |
8e688b92 | 767 | // Special application-wide events ------------------------------- |
7b5261bc | 768 | |
8e688b92 KL |
769 | // Abort everything |
770 | if (event instanceof TCommandEvent) { | |
771 | TCommandEvent command = (TCommandEvent) event; | |
772 | if (command.getCmd().equals(cmAbort)) { | |
773 | quit = true; | |
774 | return; | |
7b5261bc | 775 | } |
8e688b92 | 776 | } |
7b5261bc | 777 | |
8e688b92 KL |
778 | // Screen resize |
779 | if (event instanceof TResizeEvent) { | |
780 | TResizeEvent resize = (TResizeEvent) event; | |
bd8d51fa KL |
781 | synchronized (getScreen()) { |
782 | getScreen().setDimensions(resize.getWidth(), | |
783 | resize.getHeight()); | |
784 | desktopBottom = getScreen().getHeight() - 1; | |
785 | mouseX = 0; | |
786 | mouseY = 0; | |
787 | oldMouseX = 0; | |
788 | oldMouseY = 0; | |
789 | } | |
8e688b92 KL |
790 | return; |
791 | } | |
7b5261bc | 792 | |
8e688b92 KL |
793 | // Peek at the mouse position |
794 | if (event instanceof TMouseEvent) { | |
795 | TMouseEvent mouse = (TMouseEvent) event; | |
bd8d51fa KL |
796 | synchronized (getScreen()) { |
797 | if ((mouseX != mouse.getX()) || (mouseY != mouse.getY())) { | |
798 | oldMouseX = mouseX; | |
799 | oldMouseY = mouseY; | |
800 | mouseX = mouse.getX(); | |
801 | mouseY = mouse.getY(); | |
802 | } | |
7b5261bc | 803 | } |
8e688b92 | 804 | } |
7b5261bc | 805 | |
bd8d51fa | 806 | // Put into the main queue |
c6940ed9 KL |
807 | synchronized (drainEventQueue) { |
808 | drainEventQueue.add(event); | |
809 | } | |
4328bb42 KL |
810 | } |
811 | ||
a06459bd KL |
812 | /** |
813 | * Dispatch one event to the appropriate widget or application-level | |
fca67db0 KL |
814 | * event handler. This is the primary event handler, it has the normal |
815 | * application-wide event handling. | |
a06459bd KL |
816 | * |
817 | * @param event the input event to consume | |
fca67db0 | 818 | * @see #secondaryHandleEvent(TInputEvent event) |
a06459bd | 819 | */ |
fca67db0 KL |
820 | private void primaryHandleEvent(final TInputEvent event) { |
821 | ||
a83fea2b KL |
822 | if (debugEvents) { |
823 | System.err.printf("Handle event: %s\n", event); | |
824 | } | |
fca67db0 KL |
825 | |
826 | // Special application-wide events ----------------------------------- | |
827 | ||
828 | // Peek at the mouse position | |
829 | if (event instanceof TMouseEvent) { | |
830 | // See if we need to switch focus to another window or the menu | |
831 | checkSwitchFocus((TMouseEvent) event); | |
832 | } | |
833 | ||
834 | // Handle menu events | |
835 | if ((activeMenu != null) && !(event instanceof TCommandEvent)) { | |
836 | TMenu menu = activeMenu; | |
837 | ||
838 | if (event instanceof TMouseEvent) { | |
839 | TMouseEvent mouse = (TMouseEvent) event; | |
840 | ||
841 | while (subMenus.size() > 0) { | |
842 | TMenu subMenu = subMenus.get(subMenus.size() - 1); | |
843 | if (subMenu.mouseWouldHit(mouse)) { | |
844 | break; | |
845 | } | |
846 | if ((mouse.getType() == TMouseEvent.Type.MOUSE_MOTION) | |
847 | && (!mouse.getMouse1()) | |
848 | && (!mouse.getMouse2()) | |
849 | && (!mouse.getMouse3()) | |
850 | && (!mouse.getMouseWheelUp()) | |
851 | && (!mouse.getMouseWheelDown()) | |
852 | ) { | |
853 | break; | |
854 | } | |
855 | // We navigated away from a sub-menu, so close it | |
856 | closeSubMenu(); | |
857 | } | |
858 | ||
859 | // Convert the mouse relative x/y to menu coordinates | |
860 | assert (mouse.getX() == mouse.getAbsoluteX()); | |
861 | assert (mouse.getY() == mouse.getAbsoluteY()); | |
862 | if (subMenus.size() > 0) { | |
863 | menu = subMenus.get(subMenus.size() - 1); | |
864 | } | |
865 | mouse.setX(mouse.getX() - menu.getX()); | |
866 | mouse.setY(mouse.getY() - menu.getY()); | |
867 | } | |
868 | menu.handleEvent(event); | |
869 | return; | |
870 | } | |
a06459bd | 871 | |
fca67db0 KL |
872 | if (event instanceof TKeypressEvent) { |
873 | TKeypressEvent keypress = (TKeypressEvent) event; | |
e826b451 | 874 | |
fca67db0 KL |
875 | // See if this key matches an accelerator, and if so dispatch the |
876 | // menu event. | |
877 | TKeypress keypressLowercase = keypress.getKey().toLowerCase(); | |
e826b451 KL |
878 | TMenuItem item = null; |
879 | synchronized (accelerators) { | |
880 | item = accelerators.get(keypressLowercase); | |
881 | } | |
fca67db0 | 882 | if (item != null) { |
bd8d51fa KL |
883 | if (item.getEnabled()) { |
884 | // Let the menu item dispatch | |
885 | item.dispatch(); | |
fca67db0 KL |
886 | return; |
887 | } | |
888 | } | |
bd8d51fa KL |
889 | // Handle the keypress |
890 | if (onKeypress(keypress)) { | |
891 | return; | |
892 | } | |
fca67db0 | 893 | } |
a06459bd | 894 | |
fca67db0 KL |
895 | if (event instanceof TCommandEvent) { |
896 | if (onCommand((TCommandEvent) event)) { | |
897 | return; | |
898 | } | |
899 | } | |
900 | ||
901 | if (event instanceof TMenuEvent) { | |
902 | if (onMenu((TMenuEvent) event)) { | |
903 | return; | |
904 | } | |
905 | } | |
906 | ||
907 | // Dispatch events to the active window ------------------------------- | |
908 | for (TWindow window: windows) { | |
909 | if (window.getActive()) { | |
a06459bd KL |
910 | if (event instanceof TMouseEvent) { |
911 | TMouseEvent mouse = (TMouseEvent) event; | |
fca67db0 KL |
912 | // Convert the mouse relative x/y to window coordinates |
913 | assert (mouse.getX() == mouse.getAbsoluteX()); | |
914 | assert (mouse.getY() == mouse.getAbsoluteY()); | |
915 | mouse.setX(mouse.getX() - window.getX()); | |
916 | mouse.setY(mouse.getY() - window.getY()); | |
917 | } | |
a83fea2b KL |
918 | if (debugEvents) { |
919 | System.err.printf("TApplication dispatch event: %s\n", | |
920 | event); | |
921 | } | |
fca67db0 KL |
922 | window.handleEvent(event); |
923 | break; | |
924 | } | |
925 | } | |
926 | } | |
927 | /** | |
928 | * Dispatch one event to the appropriate widget or application-level | |
929 | * event handler. This is the secondary event handler used by certain | |
930 | * special dialogs (currently TMessageBox and TFileOpenBox). | |
931 | * | |
932 | * @param event the input event to consume | |
933 | * @see #primaryHandleEvent(TInputEvent event) | |
934 | */ | |
935 | private void secondaryHandleEvent(final TInputEvent event) { | |
c6940ed9 KL |
936 | secondaryEventReceiver.handleEvent(event); |
937 | } | |
938 | ||
939 | /** | |
940 | * Enable a widget to override the primary event thread. | |
941 | * | |
942 | * @param widget widget that will receive events | |
943 | */ | |
944 | public final void enableSecondaryEventReceiver(final TWidget widget) { | |
945 | assert (secondaryEventReceiver == null); | |
946 | assert (secondaryEventHandler == null); | |
947 | assert (widget instanceof TMessageBox); | |
948 | secondaryEventReceiver = widget; | |
949 | secondaryEventHandler = new WidgetEventHandler(this, false); | |
950 | (new Thread(secondaryEventHandler)).start(); | |
c6940ed9 KL |
951 | } |
952 | ||
953 | /** | |
954 | * Yield to the secondary thread. | |
955 | */ | |
956 | public final void yield() { | |
957 | assert (secondaryEventReceiver != null); | |
99144c71 KL |
958 | // This is where we handoff the event handler lock from the primary |
959 | // to secondary thread. We unlock here, and in a future loop the | |
960 | // secondary thread locks again. When it gives up, we have the | |
961 | // single lock back. | |
962 | boolean oldLock = unlockHandleEvent(); | |
963 | assert (oldLock == true); | |
964 | ||
c6940ed9 | 965 | while (secondaryEventReceiver != null) { |
92554d64 | 966 | synchronized (primaryEventHandler) { |
c6940ed9 | 967 | try { |
92554d64 | 968 | primaryEventHandler.wait(); |
c6940ed9 KL |
969 | } catch (InterruptedException e) { |
970 | // SQUASH | |
971 | } | |
972 | } | |
973 | } | |
a06459bd KL |
974 | } |
975 | ||
4328bb42 KL |
976 | /** |
977 | * Do stuff when there is no user input. | |
978 | */ | |
979 | private void doIdle() { | |
99144c71 KL |
980 | if (debugThreads) { |
981 | System.err.printf("doIdle()\n"); | |
982 | } | |
983 | ||
7b5261bc | 984 | // Now run any timers that have timed out |
d502a0e9 KL |
985 | Date now = new Date(); |
986 | List<TTimer> keepTimers = new LinkedList<TTimer>(); | |
987 | for (TTimer timer: timers) { | |
92554d64 | 988 | if (timer.getNextTick().getTime() <= now.getTime()) { |
d502a0e9 | 989 | timer.tick(); |
c6940ed9 | 990 | if (timer.recurring) { |
d502a0e9 | 991 | keepTimers.add(timer); |
7b5261bc KL |
992 | } |
993 | } else { | |
d502a0e9 | 994 | keepTimers.add(timer); |
7b5261bc KL |
995 | } |
996 | } | |
997 | timers = keepTimers; | |
998 | ||
999 | // Call onIdle's | |
d502a0e9 KL |
1000 | for (TWindow window: windows) { |
1001 | window.onIdle(); | |
7b5261bc | 1002 | } |
4328bb42 | 1003 | } |
7d4115a5 | 1004 | |
4328bb42 KL |
1005 | /** |
1006 | * Get the amount of time I can sleep before missing a Timer tick. | |
1007 | * | |
92554d64 | 1008 | * @param timeout = initial (maximum) timeout in millis |
4328bb42 KL |
1009 | * @return number of milliseconds between now and the next timer event |
1010 | */ | |
bd8d51fa | 1011 | private long getSleepTime(final long timeout) { |
d502a0e9 | 1012 | Date now = new Date(); |
92554d64 | 1013 | long nowTime = now.getTime(); |
d502a0e9 KL |
1014 | long sleepTime = timeout; |
1015 | for (TTimer timer: timers) { | |
92554d64 KL |
1016 | long nextTickTime = timer.getNextTick().getTime(); |
1017 | if (nextTickTime < nowTime) { | |
7b5261bc KL |
1018 | return 0; |
1019 | } | |
92554d64 KL |
1020 | |
1021 | long timeDifference = nextTickTime - nowTime; | |
1022 | if (timeDifference < sleepTime) { | |
1023 | sleepTime = timeDifference; | |
7b5261bc KL |
1024 | } |
1025 | } | |
d502a0e9 | 1026 | assert (sleepTime >= 0); |
92554d64 KL |
1027 | assert (sleepTime <= timeout); |
1028 | return sleepTime; | |
7d4115a5 | 1029 | } |
4328bb42 | 1030 | |
48e27807 KL |
1031 | /** |
1032 | * Close window. Note that the window's destructor is NOT called by this | |
1033 | * method, instead the GC is assumed to do the cleanup. | |
1034 | * | |
1035 | * @param window the window to remove | |
1036 | */ | |
1037 | public final void closeWindow(final TWindow window) { | |
bb35d919 KL |
1038 | synchronized (windows) { |
1039 | int z = window.getZ(); | |
1040 | window.setZ(-1); | |
1041 | Collections.sort(windows); | |
1042 | windows.remove(0); | |
1043 | TWindow activeWindow = null; | |
1044 | for (TWindow w: windows) { | |
1045 | if (w.getZ() > z) { | |
1046 | w.setZ(w.getZ() - 1); | |
1047 | if (w.getZ() == 0) { | |
1048 | w.setActive(true); | |
1049 | assert (activeWindow == null); | |
1050 | activeWindow = w; | |
1051 | } else { | |
1052 | w.setActive(false); | |
1053 | } | |
48e27807 KL |
1054 | } |
1055 | } | |
1056 | } | |
1057 | ||
1058 | // Perform window cleanup | |
1059 | window.onClose(); | |
1060 | ||
48e27807 | 1061 | // Check if we are closing a TMessageBox or similar |
c6940ed9 KL |
1062 | if (secondaryEventReceiver != null) { |
1063 | assert (secondaryEventHandler != null); | |
48e27807 KL |
1064 | |
1065 | // Do not send events to the secondaryEventReceiver anymore, the | |
1066 | // window is closed. | |
1067 | secondaryEventReceiver = null; | |
1068 | ||
92554d64 KL |
1069 | // Wake the secondary thread, it will wake the primary as it |
1070 | // exits. | |
1071 | synchronized (secondaryEventHandler) { | |
1072 | secondaryEventHandler.notify(); | |
48e27807 KL |
1073 | } |
1074 | } | |
48e27807 KL |
1075 | } |
1076 | ||
1077 | /** | |
1078 | * Switch to the next window. | |
1079 | * | |
1080 | * @param forward if true, then switch to the next window in the list, | |
1081 | * otherwise switch to the previous window in the list | |
1082 | */ | |
1083 | public final void switchWindow(final boolean forward) { | |
48e27807 | 1084 | // Only switch if there are multiple windows |
fca67db0 | 1085 | if (windows.size() < 2) { |
48e27807 KL |
1086 | return; |
1087 | } | |
1088 | ||
bb35d919 KL |
1089 | synchronized (windows) { |
1090 | ||
1091 | // Swap z/active between active window and the next in the list | |
1092 | int activeWindowI = -1; | |
1093 | for (int i = 0; i < windows.size(); i++) { | |
1094 | if (windows.get(i).getActive()) { | |
1095 | activeWindowI = i; | |
1096 | break; | |
1097 | } | |
48e27807 | 1098 | } |
bb35d919 | 1099 | assert (activeWindowI >= 0); |
48e27807 | 1100 | |
bb35d919 KL |
1101 | // Do not switch if a window is modal |
1102 | if (windows.get(activeWindowI).isModal()) { | |
1103 | return; | |
1104 | } | |
48e27807 | 1105 | |
bb35d919 KL |
1106 | int nextWindowI; |
1107 | if (forward) { | |
1108 | nextWindowI = (activeWindowI + 1) % windows.size(); | |
48e27807 | 1109 | } else { |
bb35d919 KL |
1110 | if (activeWindowI == 0) { |
1111 | nextWindowI = windows.size() - 1; | |
1112 | } else { | |
1113 | nextWindowI = activeWindowI - 1; | |
1114 | } | |
48e27807 | 1115 | } |
bb35d919 KL |
1116 | windows.get(activeWindowI).setActive(false); |
1117 | windows.get(activeWindowI).setZ(windows.get(nextWindowI).getZ()); | |
1118 | windows.get(nextWindowI).setZ(0); | |
1119 | windows.get(nextWindowI).setActive(true); | |
1120 | ||
1121 | } // synchronized (windows) | |
48e27807 | 1122 | |
48e27807 KL |
1123 | } |
1124 | ||
1125 | /** | |
1126 | * Add a window to my window list and make it active. | |
1127 | * | |
1128 | * @param window new window to add | |
1129 | */ | |
1130 | public final void addWindow(final TWindow window) { | |
bb35d919 KL |
1131 | synchronized (windows) { |
1132 | // Do not allow a modal window to spawn a non-modal window | |
1133 | if ((windows.size() > 0) && (windows.get(0).isModal())) { | |
1134 | assert (window.isModal()); | |
1135 | } | |
1136 | for (TWindow w: windows) { | |
1137 | w.setActive(false); | |
1138 | w.setZ(w.getZ() + 1); | |
1139 | } | |
1140 | windows.add(window); | |
1141 | window.setActive(true); | |
1142 | window.setZ(0); | |
48e27807 | 1143 | } |
48e27807 KL |
1144 | } |
1145 | ||
fca67db0 KL |
1146 | /** |
1147 | * Check if there is a system-modal window on top. | |
1148 | * | |
1149 | * @return true if the active window is modal | |
1150 | */ | |
1151 | private boolean modalWindowActive() { | |
1152 | if (windows.size() == 0) { | |
1153 | return false; | |
1154 | } | |
1155 | return windows.get(windows.size() - 1).isModal(); | |
1156 | } | |
1157 | ||
1158 | /** | |
1159 | * Check if a mouse event would hit either the active menu or any open | |
1160 | * sub-menus. | |
1161 | * | |
1162 | * @param mouse mouse event | |
1163 | * @return true if the mouse would hit the active menu or an open | |
1164 | * sub-menu | |
1165 | */ | |
1166 | private boolean mouseOnMenu(final TMouseEvent mouse) { | |
1167 | assert (activeMenu != null); | |
1168 | List<TMenu> menus = new LinkedList<TMenu>(subMenus); | |
1169 | Collections.reverse(menus); | |
1170 | for (TMenu menu: menus) { | |
1171 | if (menu.mouseWouldHit(mouse)) { | |
1172 | return true; | |
1173 | } | |
1174 | } | |
1175 | return activeMenu.mouseWouldHit(mouse); | |
1176 | } | |
1177 | ||
1178 | /** | |
1179 | * See if we need to switch window or activate the menu based on | |
1180 | * a mouse click. | |
1181 | * | |
1182 | * @param mouse mouse event | |
1183 | */ | |
1184 | private void checkSwitchFocus(final TMouseEvent mouse) { | |
1185 | ||
1186 | if ((mouse.getType() == TMouseEvent.Type.MOUSE_DOWN) | |
1187 | && (activeMenu != null) | |
1188 | && (mouse.getAbsoluteY() != 0) | |
1189 | && (!mouseOnMenu(mouse)) | |
1190 | ) { | |
1191 | // They clicked outside the active menu, turn it off | |
1192 | activeMenu.setActive(false); | |
1193 | activeMenu = null; | |
1194 | for (TMenu menu: subMenus) { | |
1195 | menu.setActive(false); | |
1196 | } | |
1197 | subMenus.clear(); | |
1198 | // Continue checks | |
1199 | } | |
1200 | ||
1201 | // See if they hit the menu bar | |
1202 | if ((mouse.getType() == TMouseEvent.Type.MOUSE_DOWN) | |
1203 | && (mouse.getMouse1()) | |
1204 | && (!modalWindowActive()) | |
1205 | && (mouse.getAbsoluteY() == 0) | |
1206 | ) { | |
1207 | ||
1208 | for (TMenu menu: subMenus) { | |
1209 | menu.setActive(false); | |
1210 | } | |
1211 | subMenus.clear(); | |
1212 | ||
1213 | // They selected the menu, go activate it | |
1214 | for (TMenu menu: menus) { | |
1215 | if ((mouse.getAbsoluteX() >= menu.getX()) | |
1216 | && (mouse.getAbsoluteX() < menu.getX() | |
1217 | + menu.getTitle().length() + 2) | |
1218 | ) { | |
1219 | menu.setActive(true); | |
1220 | activeMenu = menu; | |
1221 | } else { | |
1222 | menu.setActive(false); | |
1223 | } | |
1224 | } | |
fca67db0 KL |
1225 | return; |
1226 | } | |
1227 | ||
1228 | // See if they hit the menu bar | |
1229 | if ((mouse.getType() == TMouseEvent.Type.MOUSE_MOTION) | |
1230 | && (mouse.getMouse1()) | |
1231 | && (activeMenu != null) | |
1232 | && (mouse.getAbsoluteY() == 0) | |
1233 | ) { | |
1234 | ||
1235 | TMenu oldMenu = activeMenu; | |
1236 | for (TMenu menu: subMenus) { | |
1237 | menu.setActive(false); | |
1238 | } | |
1239 | subMenus.clear(); | |
1240 | ||
1241 | // See if we should switch menus | |
1242 | for (TMenu menu: menus) { | |
1243 | if ((mouse.getAbsoluteX() >= menu.getX()) | |
1244 | && (mouse.getAbsoluteX() < menu.getX() | |
1245 | + menu.getTitle().length() + 2) | |
1246 | ) { | |
1247 | menu.setActive(true); | |
1248 | activeMenu = menu; | |
1249 | } | |
1250 | } | |
1251 | if (oldMenu != activeMenu) { | |
1252 | // They switched menus | |
1253 | oldMenu.setActive(false); | |
1254 | } | |
fca67db0 KL |
1255 | return; |
1256 | } | |
1257 | ||
1258 | // Only switch if there are multiple windows | |
1259 | if (windows.size() < 2) { | |
1260 | return; | |
1261 | } | |
1262 | ||
1263 | // Switch on the upclick | |
1264 | if (mouse.getType() != TMouseEvent.Type.MOUSE_UP) { | |
1265 | return; | |
1266 | } | |
1267 | ||
bb35d919 KL |
1268 | synchronized (windows) { |
1269 | Collections.sort(windows); | |
1270 | if (windows.get(0).isModal()) { | |
1271 | // Modal windows don't switch | |
1272 | return; | |
1273 | } | |
fca67db0 | 1274 | |
bb35d919 KL |
1275 | for (TWindow window: windows) { |
1276 | assert (!window.isModal()); | |
1277 | if (window.mouseWouldHit(mouse)) { | |
1278 | if (window == windows.get(0)) { | |
1279 | // Clicked on the same window, nothing to do | |
1280 | return; | |
1281 | } | |
1282 | ||
1283 | // We will be switching to another window | |
1284 | assert (windows.get(0).getActive()); | |
1285 | assert (!window.getActive()); | |
1286 | windows.get(0).setActive(false); | |
1287 | windows.get(0).setZ(window.getZ()); | |
1288 | window.setZ(0); | |
1289 | window.setActive(true); | |
fca67db0 KL |
1290 | return; |
1291 | } | |
fca67db0 KL |
1292 | } |
1293 | } | |
1294 | ||
1295 | // Clicked on the background, nothing to do | |
1296 | return; | |
1297 | } | |
1298 | ||
1299 | /** | |
1300 | * Turn off the menu. | |
1301 | */ | |
928811d8 | 1302 | public final void closeMenu() { |
fca67db0 KL |
1303 | if (activeMenu != null) { |
1304 | activeMenu.setActive(false); | |
1305 | activeMenu = null; | |
1306 | for (TMenu menu: subMenus) { | |
1307 | menu.setActive(false); | |
1308 | } | |
1309 | subMenus.clear(); | |
1310 | } | |
fca67db0 KL |
1311 | } |
1312 | ||
1313 | /** | |
1314 | * Turn off a sub-menu. | |
1315 | */ | |
928811d8 | 1316 | public final void closeSubMenu() { |
fca67db0 KL |
1317 | assert (activeMenu != null); |
1318 | TMenu item = subMenus.get(subMenus.size() - 1); | |
1319 | assert (item != null); | |
1320 | item.setActive(false); | |
1321 | subMenus.remove(subMenus.size() - 1); | |
fca67db0 KL |
1322 | } |
1323 | ||
1324 | /** | |
1325 | * Switch to the next menu. | |
1326 | * | |
1327 | * @param forward if true, then switch to the next menu in the list, | |
1328 | * otherwise switch to the previous menu in the list | |
1329 | */ | |
928811d8 | 1330 | public final void switchMenu(final boolean forward) { |
fca67db0 KL |
1331 | assert (activeMenu != null); |
1332 | ||
1333 | for (TMenu menu: subMenus) { | |
1334 | menu.setActive(false); | |
1335 | } | |
1336 | subMenus.clear(); | |
1337 | ||
1338 | for (int i = 0; i < menus.size(); i++) { | |
1339 | if (activeMenu == menus.get(i)) { | |
1340 | if (forward) { | |
1341 | if (i < menus.size() - 1) { | |
1342 | i++; | |
1343 | } | |
1344 | } else { | |
1345 | if (i > 0) { | |
1346 | i--; | |
1347 | } | |
1348 | } | |
1349 | activeMenu.setActive(false); | |
1350 | activeMenu = menus.get(i); | |
1351 | activeMenu.setActive(true); | |
fca67db0 KL |
1352 | return; |
1353 | } | |
1354 | } | |
1355 | } | |
1356 | ||
1357 | /** | |
1358 | * Method that TApplication subclasses can override to handle menu or | |
1359 | * posted command events. | |
1360 | * | |
1361 | * @param command command event | |
1362 | * @return if true, this event was consumed | |
1363 | */ | |
1364 | protected boolean onCommand(final TCommandEvent command) { | |
fca67db0 KL |
1365 | // Default: handle cmExit |
1366 | if (command.equals(cmExit)) { | |
1367 | if (messageBox("Confirmation", "Exit application?", | |
c6940ed9 | 1368 | TMessageBox.Type.YESNO).getResult() == TMessageBox.Result.YES) { |
fca67db0 KL |
1369 | quit = true; |
1370 | } | |
fca67db0 KL |
1371 | return true; |
1372 | } | |
1373 | ||
1374 | if (command.equals(cmShell)) { | |
34a42e78 | 1375 | openTerminal(0, 0, TWindow.RESIZABLE); |
fca67db0 KL |
1376 | return true; |
1377 | } | |
1378 | ||
1379 | if (command.equals(cmTile)) { | |
1380 | tileWindows(); | |
fca67db0 KL |
1381 | return true; |
1382 | } | |
1383 | if (command.equals(cmCascade)) { | |
1384 | cascadeWindows(); | |
fca67db0 KL |
1385 | return true; |
1386 | } | |
1387 | if (command.equals(cmCloseAll)) { | |
1388 | closeAllWindows(); | |
fca67db0 KL |
1389 | return true; |
1390 | } | |
c6940ed9 | 1391 | |
fca67db0 KL |
1392 | return false; |
1393 | } | |
1394 | ||
1395 | /** | |
1396 | * Method that TApplication subclasses can override to handle menu | |
1397 | * events. | |
1398 | * | |
1399 | * @param menu menu event | |
1400 | * @return if true, this event was consumed | |
1401 | */ | |
1402 | protected boolean onMenu(final TMenuEvent menu) { | |
1403 | ||
fca67db0 | 1404 | // Default: handle MID_EXIT |
8e688b92 | 1405 | if (menu.getId() == TMenu.MID_EXIT) { |
fca67db0 | 1406 | if (messageBox("Confirmation", "Exit application?", |
c6940ed9 | 1407 | TMessageBox.Type.YESNO).getResult() == TMessageBox.Result.YES) { |
fca67db0 KL |
1408 | quit = true; |
1409 | } | |
fca67db0 KL |
1410 | return true; |
1411 | } | |
1412 | ||
34a42e78 KL |
1413 | if (menu.getId() == TMenu.MID_SHELL) { |
1414 | openTerminal(0, 0, TWindow.RESIZABLE); | |
fca67db0 KL |
1415 | return true; |
1416 | } | |
1417 | ||
8e688b92 | 1418 | if (menu.getId() == TMenu.MID_TILE) { |
fca67db0 | 1419 | tileWindows(); |
fca67db0 KL |
1420 | return true; |
1421 | } | |
8e688b92 | 1422 | if (menu.getId() == TMenu.MID_CASCADE) { |
fca67db0 | 1423 | cascadeWindows(); |
fca67db0 KL |
1424 | return true; |
1425 | } | |
8e688b92 | 1426 | if (menu.getId() == TMenu.MID_CLOSE_ALL) { |
fca67db0 | 1427 | closeAllWindows(); |
fca67db0 KL |
1428 | return true; |
1429 | } | |
fca67db0 KL |
1430 | return false; |
1431 | } | |
1432 | ||
1433 | /** | |
1434 | * Method that TApplication subclasses can override to handle keystrokes. | |
1435 | * | |
1436 | * @param keypress keystroke event | |
1437 | * @return if true, this event was consumed | |
1438 | */ | |
1439 | protected boolean onKeypress(final TKeypressEvent keypress) { | |
1440 | // Default: only menu shortcuts | |
1441 | ||
1442 | // Process Alt-F, Alt-E, etc. menu shortcut keys | |
1443 | if (!keypress.getKey().getIsKey() | |
1444 | && keypress.getKey().getAlt() | |
1445 | && !keypress.getKey().getCtrl() | |
1446 | && (activeMenu == null) | |
1447 | ) { | |
1448 | ||
1449 | assert (subMenus.size() == 0); | |
1450 | ||
1451 | for (TMenu menu: menus) { | |
1452 | if (Character.toLowerCase(menu.getMnemonic().getShortcut()) | |
1453 | == Character.toLowerCase(keypress.getKey().getCh()) | |
1454 | ) { | |
1455 | activeMenu = menu; | |
1456 | menu.setActive(true); | |
fca67db0 KL |
1457 | return true; |
1458 | } | |
1459 | } | |
1460 | } | |
1461 | ||
1462 | return false; | |
1463 | } | |
48e27807 | 1464 | |
928811d8 KL |
1465 | /** |
1466 | * Add a keyboard accelerator to the global hash. | |
1467 | * | |
1468 | * @param item menu item this accelerator relates to | |
1469 | * @param keypress keypress that will dispatch a TMenuEvent | |
1470 | */ | |
1471 | public final void addAccelerator(final TMenuItem item, | |
1472 | final TKeypress keypress) { | |
e826b451 | 1473 | |
e826b451 KL |
1474 | synchronized (accelerators) { |
1475 | assert (accelerators.get(keypress) == null); | |
1476 | accelerators.put(keypress, item); | |
1477 | } | |
928811d8 KL |
1478 | } |
1479 | ||
1480 | /** | |
1481 | * Recompute menu x positions based on their title length. | |
1482 | */ | |
1483 | public final void recomputeMenuX() { | |
1484 | int x = 0; | |
1485 | for (TMenu menu: menus) { | |
1486 | menu.setX(x); | |
1487 | x += menu.getTitle().length() + 2; | |
1488 | } | |
1489 | } | |
1490 | ||
1491 | /** | |
1492 | * Post an event to process and turn off the menu. | |
1493 | * | |
1494 | * @param event new event to add to the queue | |
1495 | */ | |
1496 | public final void addMenuEvent(final TInputEvent event) { | |
8e688b92 KL |
1497 | synchronized (fillEventQueue) { |
1498 | fillEventQueue.add(event); | |
1499 | } | |
928811d8 KL |
1500 | closeMenu(); |
1501 | } | |
1502 | ||
1503 | /** | |
1504 | * Add a sub-menu to the list of open sub-menus. | |
1505 | * | |
1506 | * @param menu sub-menu | |
1507 | */ | |
1508 | public final void addSubMenu(final TMenu menu) { | |
1509 | subMenus.add(menu); | |
1510 | } | |
1511 | ||
8e688b92 KL |
1512 | /** |
1513 | * Convenience function to add a top-level menu. | |
1514 | * | |
1515 | * @param title menu title | |
1516 | * @return the new menu | |
1517 | */ | |
87a17f3c | 1518 | public final TMenu addMenu(final String title) { |
8e688b92 KL |
1519 | int x = 0; |
1520 | int y = 0; | |
1521 | TMenu menu = new TMenu(this, x, y, title); | |
1522 | menus.add(menu); | |
1523 | recomputeMenuX(); | |
1524 | return menu; | |
1525 | } | |
1526 | ||
1527 | /** | |
1528 | * Convenience function to add a default "File" menu. | |
1529 | * | |
1530 | * @return the new menu | |
1531 | */ | |
1532 | public final TMenu addFileMenu() { | |
1533 | TMenu fileMenu = addMenu("&File"); | |
1534 | fileMenu.addDefaultItem(TMenu.MID_OPEN_FILE); | |
1535 | fileMenu.addSeparator(); | |
1536 | fileMenu.addDefaultItem(TMenu.MID_SHELL); | |
1537 | fileMenu.addDefaultItem(TMenu.MID_EXIT); | |
1538 | return fileMenu; | |
1539 | } | |
1540 | ||
1541 | /** | |
1542 | * Convenience function to add a default "Edit" menu. | |
1543 | * | |
1544 | * @return the new menu | |
1545 | */ | |
1546 | public final TMenu addEditMenu() { | |
1547 | TMenu editMenu = addMenu("&Edit"); | |
1548 | editMenu.addDefaultItem(TMenu.MID_CUT); | |
1549 | editMenu.addDefaultItem(TMenu.MID_COPY); | |
1550 | editMenu.addDefaultItem(TMenu.MID_PASTE); | |
1551 | editMenu.addDefaultItem(TMenu.MID_CLEAR); | |
1552 | return editMenu; | |
1553 | } | |
1554 | ||
1555 | /** | |
1556 | * Convenience function to add a default "Window" menu. | |
1557 | * | |
1558 | * @return the new menu | |
1559 | */ | |
c6940ed9 | 1560 | public final TMenu addWindowMenu() { |
8e688b92 KL |
1561 | TMenu windowMenu = addMenu("&Window"); |
1562 | windowMenu.addDefaultItem(TMenu.MID_TILE); | |
1563 | windowMenu.addDefaultItem(TMenu.MID_CASCADE); | |
1564 | windowMenu.addDefaultItem(TMenu.MID_CLOSE_ALL); | |
1565 | windowMenu.addSeparator(); | |
1566 | windowMenu.addDefaultItem(TMenu.MID_WINDOW_MOVE); | |
1567 | windowMenu.addDefaultItem(TMenu.MID_WINDOW_ZOOM); | |
1568 | windowMenu.addDefaultItem(TMenu.MID_WINDOW_NEXT); | |
1569 | windowMenu.addDefaultItem(TMenu.MID_WINDOW_PREVIOUS); | |
1570 | windowMenu.addDefaultItem(TMenu.MID_WINDOW_CLOSE); | |
1571 | return windowMenu; | |
1572 | } | |
1573 | ||
1574 | /** | |
1575 | * Close all open windows. | |
1576 | */ | |
1577 | private void closeAllWindows() { | |
1578 | // Don't do anything if we are in the menu | |
1579 | if (activeMenu != null) { | |
1580 | return; | |
1581 | } | |
bb35d919 KL |
1582 | |
1583 | synchronized (windows) { | |
1584 | for (TWindow window: windows) { | |
1585 | closeWindow(window); | |
1586 | } | |
8e688b92 KL |
1587 | } |
1588 | } | |
1589 | ||
1590 | /** | |
1591 | * Re-layout the open windows as non-overlapping tiles. This produces | |
1592 | * almost the same results as Turbo Pascal 7.0's IDE. | |
1593 | */ | |
1594 | private void tileWindows() { | |
bb35d919 KL |
1595 | synchronized (windows) { |
1596 | // Don't do anything if we are in the menu | |
1597 | if (activeMenu != null) { | |
1598 | return; | |
8e688b92 | 1599 | } |
bb35d919 KL |
1600 | int z = windows.size(); |
1601 | if (z == 0) { | |
1602 | return; | |
1603 | } | |
1604 | int a = 0; | |
1605 | int b = 0; | |
1606 | a = (int)(Math.sqrt(z)); | |
1607 | int c = 0; | |
1608 | while (c < a) { | |
1609 | b = (z - c) / a; | |
1610 | if (((a * b) + c) == z) { | |
1611 | break; | |
1612 | } | |
1613 | c++; | |
8e688b92 | 1614 | } |
bb35d919 KL |
1615 | assert (a > 0); |
1616 | assert (b > 0); | |
1617 | assert (c < a); | |
1618 | int newWidth = (getScreen().getWidth() / a); | |
1619 | int newHeight1 = ((getScreen().getHeight() - 1) / b); | |
1620 | int newHeight2 = ((getScreen().getHeight() - 1) / (b + c)); | |
1621 | ||
1622 | List<TWindow> sorted = new LinkedList<TWindow>(windows); | |
1623 | Collections.sort(sorted); | |
1624 | Collections.reverse(sorted); | |
1625 | for (int i = 0; i < sorted.size(); i++) { | |
1626 | int logicalX = i / b; | |
1627 | int logicalY = i % b; | |
1628 | if (i >= ((a - 1) * b)) { | |
1629 | logicalX = a - 1; | |
1630 | logicalY = i - ((a - 1) * b); | |
1631 | } | |
8e688b92 | 1632 | |
bb35d919 KL |
1633 | TWindow w = sorted.get(i); |
1634 | w.setX(logicalX * newWidth); | |
1635 | w.setWidth(newWidth); | |
1636 | if (i >= ((a - 1) * b)) { | |
1637 | w.setY((logicalY * newHeight2) + 1); | |
1638 | w.setHeight(newHeight2); | |
1639 | } else { | |
1640 | w.setY((logicalY * newHeight1) + 1); | |
1641 | w.setHeight(newHeight1); | |
1642 | } | |
8e688b92 KL |
1643 | } |
1644 | } | |
1645 | } | |
1646 | ||
1647 | /** | |
1648 | * Re-layout the open windows as overlapping cascaded windows. | |
1649 | */ | |
1650 | private void cascadeWindows() { | |
bb35d919 KL |
1651 | synchronized (windows) { |
1652 | // Don't do anything if we are in the menu | |
1653 | if (activeMenu != null) { | |
1654 | return; | |
8e688b92 | 1655 | } |
bb35d919 KL |
1656 | int x = 0; |
1657 | int y = 1; | |
1658 | List<TWindow> sorted = new LinkedList<TWindow>(windows); | |
1659 | Collections.sort(sorted); | |
1660 | Collections.reverse(sorted); | |
1661 | for (TWindow window: sorted) { | |
1662 | window.setX(x); | |
1663 | window.setY(y); | |
1664 | x++; | |
1665 | y++; | |
1666 | if (x > getScreen().getWidth()) { | |
1667 | x = 0; | |
1668 | } | |
1669 | if (y >= getScreen().getHeight()) { | |
1670 | y = 1; | |
1671 | } | |
8e688b92 KL |
1672 | } |
1673 | } | |
1674 | } | |
1675 | ||
d502a0e9 KL |
1676 | /** |
1677 | * Convenience function to add a timer. | |
1678 | * | |
1679 | * @param duration number of milliseconds to wait between ticks | |
1680 | * @param recurring if true, re-schedule this timer after every tick | |
1681 | * @param action function to call when button is pressed | |
c6940ed9 | 1682 | * @return the timer |
d502a0e9 KL |
1683 | */ |
1684 | public final TTimer addTimer(final long duration, final boolean recurring, | |
1685 | final TAction action) { | |
1686 | ||
1687 | TTimer timer = new TTimer(duration, recurring, action); | |
1688 | synchronized (timers) { | |
1689 | timers.add(timer); | |
1690 | } | |
1691 | return timer; | |
1692 | } | |
1693 | ||
1694 | /** | |
1695 | * Convenience function to remove a timer. | |
1696 | * | |
1697 | * @param timer timer to remove | |
1698 | */ | |
1699 | public final void removeTimer(final TTimer timer) { | |
1700 | synchronized (timers) { | |
1701 | timers.remove(timer); | |
1702 | } | |
1703 | } | |
1704 | ||
c6940ed9 KL |
1705 | /** |
1706 | * Convenience function to spawn a message box. | |
1707 | * | |
1708 | * @param title window title, will be centered along the top border | |
1709 | * @param caption message to display. Use embedded newlines to get a | |
1710 | * multi-line box. | |
1711 | * @return the new message box | |
1712 | */ | |
1713 | public final TMessageBox messageBox(final String title, | |
1714 | final String caption) { | |
1715 | ||
1716 | return new TMessageBox(this, title, caption, TMessageBox.Type.OK); | |
1717 | } | |
1718 | ||
1719 | /** | |
1720 | * Convenience function to spawn a message box. | |
1721 | * | |
1722 | * @param title window title, will be centered along the top border | |
1723 | * @param caption message to display. Use embedded newlines to get a | |
1724 | * multi-line box. | |
1725 | * @param type one of the TMessageBox.Type constants. Default is | |
1726 | * Type.OK. | |
1727 | * @return the new message box | |
1728 | */ | |
1729 | public final TMessageBox messageBox(final String title, | |
1730 | final String caption, final TMessageBox.Type type) { | |
1731 | ||
1732 | return new TMessageBox(this, title, caption, type); | |
1733 | } | |
1734 | ||
1735 | /** | |
1736 | * Convenience function to spawn an input box. | |
1737 | * | |
1738 | * @param title window title, will be centered along the top border | |
1739 | * @param caption message to display. Use embedded newlines to get a | |
1740 | * multi-line box. | |
1741 | * @return the new input box | |
1742 | */ | |
1743 | public final TInputBox inputBox(final String title, final String caption) { | |
1744 | ||
1745 | return new TInputBox(this, title, caption); | |
1746 | } | |
1747 | ||
1748 | /** | |
1749 | * Convenience function to spawn an input box. | |
1750 | * | |
1751 | * @param title window title, will be centered along the top border | |
1752 | * @param caption message to display. Use embedded newlines to get a | |
1753 | * multi-line box. | |
1754 | * @param text initial text to seed the field with | |
1755 | * @return the new input box | |
1756 | */ | |
1757 | public final TInputBox inputBox(final String title, final String caption, | |
1758 | final String text) { | |
1759 | ||
1760 | return new TInputBox(this, title, caption, text); | |
1761 | } | |
1ac2ccb1 | 1762 | |
34a42e78 KL |
1763 | /** |
1764 | * Convenience function to open a terminal window. | |
1765 | * | |
1766 | * @param x column relative to parent | |
1767 | * @param y row relative to parent | |
1768 | * @return the terminal new window | |
1769 | */ | |
1770 | public final TTerminalWindow openTerminal(final int x, final int y) { | |
1771 | return openTerminal(x, y, TWindow.RESIZABLE); | |
1772 | } | |
1773 | ||
1774 | /** | |
1775 | * Convenience function to open a terminal window. | |
1776 | * | |
1777 | * @param x column relative to parent | |
1778 | * @param y row relative to parent | |
1779 | * @param flags mask of CENTERED, MODAL, or RESIZABLE | |
1780 | * @return the terminal new window | |
1781 | */ | |
1782 | public final TTerminalWindow openTerminal(final int x, final int y, | |
1783 | final int flags) { | |
1784 | ||
1785 | return new TTerminalWindow(this, x, y, flags); | |
1786 | } | |
1787 | ||
7d4115a5 | 1788 | } |