Commit | Line | Data |
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daa4106c | 1 | /* |
7b5261bc | 2 | * Jexer - Java Text User Interface |
7d4115a5 | 3 | * |
e16dda65 | 4 | * The MIT License (MIT) |
7d4115a5 | 5 | * |
e16dda65 | 6 | * Copyright (C) 2016 Kevin Lamonte |
7d4115a5 | 7 | * |
e16dda65 KL |
8 | * Permission is hereby granted, free of charge, to any person obtaining a |
9 | * copy of this software and associated documentation files (the "Software"), | |
10 | * to deal in the Software without restriction, including without limitation | |
11 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
12 | * and/or sell copies of the Software, and to permit persons to whom the | |
13 | * Software is furnished to do so, subject to the following conditions: | |
7d4115a5 | 14 | * |
e16dda65 KL |
15 | * The above copyright notice and this permission notice shall be included in |
16 | * all copies or substantial portions of the Software. | |
7d4115a5 | 17 | * |
e16dda65 KL |
18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
19 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
20 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
21 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
22 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | |
23 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER | |
24 | * DEALINGS IN THE SOFTWARE. | |
7b5261bc KL |
25 | * |
26 | * @author Kevin Lamonte [kevin.lamonte@gmail.com] | |
27 | * @version 1 | |
7d4115a5 KL |
28 | */ |
29 | package jexer; | |
30 | ||
4328bb42 | 31 | import java.io.InputStream; |
0d47c546 | 32 | import java.io.IOException; |
4328bb42 | 33 | import java.io.OutputStream; |
6985c572 KL |
34 | import java.io.PrintWriter; |
35 | import java.io.Reader; | |
4328bb42 | 36 | import java.io.UnsupportedEncodingException; |
a06459bd | 37 | import java.util.Collections; |
d502a0e9 | 38 | import java.util.Date; |
e826b451 | 39 | import java.util.HashMap; |
c6940ed9 | 40 | import java.util.ArrayList; |
4328bb42 KL |
41 | import java.util.LinkedList; |
42 | import java.util.List; | |
e826b451 | 43 | import java.util.Map; |
4328bb42 KL |
44 | |
45 | import jexer.bits.CellAttributes; | |
46 | import jexer.bits.ColorTheme; | |
47 | import jexer.bits.GraphicsChars; | |
48 | import jexer.event.TCommandEvent; | |
49 | import jexer.event.TInputEvent; | |
50 | import jexer.event.TKeypressEvent; | |
fca67db0 | 51 | import jexer.event.TMenuEvent; |
4328bb42 KL |
52 | import jexer.event.TMouseEvent; |
53 | import jexer.event.TResizeEvent; | |
54 | import jexer.backend.Backend; | |
a4406f4e | 55 | import jexer.backend.SwingBackend; |
4328bb42 | 56 | import jexer.backend.ECMA48Backend; |
48e27807 | 57 | import jexer.io.Screen; |
928811d8 KL |
58 | import jexer.menu.TMenu; |
59 | import jexer.menu.TMenuItem; | |
4328bb42 | 60 | import static jexer.TCommand.*; |
4328bb42 | 61 | |
7d4115a5 KL |
62 | /** |
63 | * TApplication sets up a full Text User Interface application. | |
64 | */ | |
a4406f4e | 65 | public class TApplication implements Runnable { |
7d4115a5 | 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 | ||
a4406f4e KL |
77 | /** |
78 | * Two backend types are available. | |
79 | */ | |
80 | public static enum BackendType { | |
81 | /** | |
82 | * A Swing JFrame. | |
83 | */ | |
84 | SWING, | |
85 | ||
86 | /** | |
87 | * An ECMA48 / ANSI X3.64 / XTERM style terminal. | |
88 | */ | |
89 | ECMA48, | |
90 | ||
91 | /** | |
329fd62e | 92 | * Synonym for ECMA48. |
a4406f4e KL |
93 | */ |
94 | XTERM | |
95 | } | |
96 | ||
c6940ed9 KL |
97 | /** |
98 | * WidgetEventHandler is the main event consumer loop. There are at most | |
99 | * two such threads in existence: the primary for normal case and a | |
100 | * secondary that is used for TMessageBox, TInputBox, and similar. | |
101 | */ | |
102 | private class WidgetEventHandler implements Runnable { | |
103 | /** | |
104 | * The main application. | |
105 | */ | |
106 | private TApplication application; | |
107 | ||
108 | /** | |
109 | * Whether or not this WidgetEventHandler is the primary or secondary | |
110 | * thread. | |
111 | */ | |
112 | private boolean primary = true; | |
113 | ||
114 | /** | |
115 | * Public constructor. | |
116 | * | |
117 | * @param application the main application | |
118 | * @param primary if true, this is the primary event handler thread | |
119 | */ | |
120 | public WidgetEventHandler(final TApplication application, | |
121 | final boolean primary) { | |
122 | ||
123 | this.application = application; | |
124 | this.primary = primary; | |
125 | } | |
126 | ||
127 | /** | |
128 | * The consumer loop. | |
129 | */ | |
130 | public void run() { | |
131 | ||
132 | // Loop forever | |
133 | while (!application.quit) { | |
134 | ||
135 | // Wait until application notifies me | |
136 | while (!application.quit) { | |
137 | try { | |
138 | synchronized (application.drainEventQueue) { | |
139 | if (application.drainEventQueue.size() > 0) { | |
140 | break; | |
141 | } | |
142 | } | |
92554d64 KL |
143 | |
144 | synchronized (this) { | |
bd8d51fa KL |
145 | if (debugThreads) { |
146 | System.err.printf("%s %s sleep\n", this, | |
147 | primary ? "primary" : "secondary"); | |
148 | } | |
92554d64 KL |
149 | |
150 | this.wait(); | |
151 | ||
bd8d51fa KL |
152 | if (debugThreads) { |
153 | System.err.printf("%s %s AWAKE\n", this, | |
154 | primary ? "primary" : "secondary"); | |
155 | } | |
92554d64 | 156 | |
c6940ed9 KL |
157 | if ((!primary) |
158 | && (application.secondaryEventReceiver == null) | |
159 | ) { | |
92554d64 KL |
160 | // Secondary thread, emergency exit. If we |
161 | // got here then something went wrong with | |
162 | // the handoff between yield() and | |
163 | // closeWindow(). | |
92554d64 KL |
164 | synchronized (application.primaryEventHandler) { |
165 | application.primaryEventHandler.notify(); | |
166 | } | |
167 | application.secondaryEventHandler = null; | |
bd8d51fa KL |
168 | throw new RuntimeException( |
169 | "secondary exited at wrong time"); | |
c6940ed9 KL |
170 | } |
171 | break; | |
172 | } | |
173 | } catch (InterruptedException e) { | |
174 | // SQUASH | |
175 | } | |
176 | } | |
177 | ||
ef368bd0 KL |
178 | // Wait for drawAll() or doIdle() to be done, then handle the |
179 | // events. | |
180 | boolean oldLock = lockHandleEvent(); | |
181 | assert (oldLock == false); | |
182 | ||
c6940ed9 KL |
183 | // Pull all events off the queue |
184 | for (;;) { | |
185 | TInputEvent event = null; | |
186 | synchronized (application.drainEventQueue) { | |
187 | if (application.drainEventQueue.size() == 0) { | |
188 | break; | |
189 | } | |
190 | event = application.drainEventQueue.remove(0); | |
191 | } | |
bd8d51fa | 192 | application.repaint = true; |
c6940ed9 KL |
193 | if (primary) { |
194 | primaryHandleEvent(event); | |
195 | } else { | |
196 | secondaryHandleEvent(event); | |
197 | } | |
198 | if ((!primary) | |
199 | && (application.secondaryEventReceiver == null) | |
200 | ) { | |
99144c71 KL |
201 | // Secondary thread, time to exit. |
202 | ||
203 | // DO NOT UNLOCK. Primary thread just came back from | |
204 | // primaryHandleEvent() and will unlock in the else | |
92554d64 KL |
205 | // block below. Just wake it up. |
206 | synchronized (application.primaryEventHandler) { | |
207 | application.primaryEventHandler.notify(); | |
208 | } | |
209 | // Now eliminate my reference so that | |
210 | // wakeEventHandler() resumes working on the primary. | |
211 | application.secondaryEventHandler = null; | |
212 | ||
213 | // All done! | |
c6940ed9 KL |
214 | return; |
215 | } | |
92554d64 KL |
216 | } // for (;;) |
217 | ||
ef368bd0 KL |
218 | // Unlock. Either I am primary thread, or I am secondary |
219 | // thread and still running. | |
220 | oldLock = unlockHandleEvent(); | |
221 | assert (oldLock == true); | |
222 | ||
92554d64 KL |
223 | // I have done some work of some kind. Tell the main run() |
224 | // loop to wake up now. | |
225 | synchronized (application) { | |
226 | application.notify(); | |
c6940ed9 | 227 | } |
92554d64 | 228 | |
c6940ed9 KL |
229 | } // while (true) (main runnable loop) |
230 | } | |
231 | } | |
232 | ||
233 | /** | |
234 | * The primary event handler thread. | |
235 | */ | |
92554d64 | 236 | private volatile WidgetEventHandler primaryEventHandler; |
c6940ed9 KL |
237 | |
238 | /** | |
239 | * The secondary event handler thread. | |
240 | */ | |
92554d64 | 241 | private volatile WidgetEventHandler secondaryEventHandler; |
c6940ed9 KL |
242 | |
243 | /** | |
244 | * The widget receiving events from the secondary event handler thread. | |
245 | */ | |
92554d64 | 246 | private volatile TWidget secondaryEventReceiver; |
c6940ed9 | 247 | |
99144c71 KL |
248 | /** |
249 | * Spinlock for the primary and secondary event handlers. | |
250 | * WidgetEventHandler.run() is responsible for setting this value. | |
251 | */ | |
252 | private volatile boolean insideHandleEvent = false; | |
253 | ||
92554d64 KL |
254 | /** |
255 | * Wake the sleeping active event handler. | |
256 | */ | |
257 | private void wakeEventHandler() { | |
258 | if (secondaryEventHandler != null) { | |
259 | synchronized (secondaryEventHandler) { | |
260 | secondaryEventHandler.notify(); | |
261 | } | |
262 | } else { | |
263 | assert (primaryEventHandler != null); | |
264 | synchronized (primaryEventHandler) { | |
265 | primaryEventHandler.notify(); | |
266 | } | |
267 | } | |
268 | } | |
269 | ||
99144c71 KL |
270 | /** |
271 | * Set the insideHandleEvent flag to true. lockoutEventHandlers() will | |
272 | * spin indefinitely until unlockHandleEvent() is called. | |
273 | * | |
274 | * @return the old value of insideHandleEvent | |
275 | */ | |
276 | private boolean lockHandleEvent() { | |
277 | if (debugThreads) { | |
278 | System.err.printf(" >> lockHandleEvent(): oldValue %s", | |
279 | insideHandleEvent); | |
280 | } | |
281 | boolean oldValue = true; | |
282 | ||
283 | synchronized (this) { | |
284 | // Wait for TApplication.run() to finish using the global state | |
285 | // before allowing further event processing. | |
ef368bd0 KL |
286 | while (lockoutHandleEvent == true) { |
287 | try { | |
288 | // Backoff so that the backend can finish its work. | |
289 | Thread.sleep(5); | |
290 | } catch (InterruptedException e) { | |
291 | // SQUASH | |
292 | } | |
293 | } | |
99144c71 KL |
294 | |
295 | oldValue = insideHandleEvent; | |
296 | insideHandleEvent = true; | |
297 | } | |
298 | ||
299 | if (debugThreads) { | |
300 | System.err.printf(" ***\n"); | |
301 | } | |
302 | return oldValue; | |
303 | } | |
304 | ||
305 | /** | |
306 | * Set the insideHandleEvent flag to false. lockoutEventHandlers() will | |
307 | * spin indefinitely until unlockHandleEvent() is called. | |
308 | * | |
309 | * @return the old value of insideHandleEvent | |
310 | */ | |
311 | private boolean unlockHandleEvent() { | |
312 | if (debugThreads) { | |
313 | System.err.printf(" << unlockHandleEvent(): oldValue %s\n", | |
314 | insideHandleEvent); | |
315 | } | |
316 | synchronized (this) { | |
317 | boolean oldValue = insideHandleEvent; | |
318 | insideHandleEvent = false; | |
319 | return oldValue; | |
320 | } | |
321 | } | |
322 | ||
323 | /** | |
324 | * Spinlock for the primary and secondary event handlers. When true, the | |
325 | * event handlers will spinlock wait before calling handleEvent(). | |
326 | */ | |
327 | private volatile boolean lockoutHandleEvent = false; | |
328 | ||
329 | /** | |
330 | * TApplication.run() needs to be able rely on the global data structures | |
331 | * being intact when calling doIdle() and drawAll(). Tell the event | |
332 | * handlers to wait for an unlock before handling their events. | |
333 | */ | |
334 | private void stopEventHandlers() { | |
335 | if (debugThreads) { | |
336 | System.err.printf(">> stopEventHandlers()"); | |
337 | } | |
338 | ||
339 | lockoutHandleEvent = true; | |
340 | // Wait for the last event to finish processing before returning | |
341 | // control to TApplication.run(). | |
ef368bd0 KL |
342 | while (insideHandleEvent == true) { |
343 | try { | |
344 | // Backoff so that the event handler can finish its work. | |
345 | Thread.sleep(1); | |
346 | } catch (InterruptedException e) { | |
347 | // SQUASH | |
348 | } | |
349 | } | |
99144c71 KL |
350 | |
351 | if (debugThreads) { | |
352 | System.err.printf(" XXX\n"); | |
353 | } | |
354 | } | |
355 | ||
356 | /** | |
357 | * TApplication.run() needs to be able rely on the global data structures | |
358 | * being intact when calling doIdle() and drawAll(). Tell the event | |
359 | * handlers that it is now OK to handle their events. | |
360 | */ | |
361 | private void startEventHandlers() { | |
362 | if (debugThreads) { | |
363 | System.err.printf("<< startEventHandlers()\n"); | |
364 | } | |
365 | lockoutHandleEvent = false; | |
366 | } | |
367 | ||
7d4115a5 | 368 | /** |
4328bb42 KL |
369 | * Access to the physical screen, keyboard, and mouse. |
370 | */ | |
7b5261bc | 371 | private Backend backend; |
4328bb42 | 372 | |
48e27807 KL |
373 | /** |
374 | * Get the Screen. | |
375 | * | |
376 | * @return the Screen | |
377 | */ | |
378 | public final Screen getScreen() { | |
379 | return backend.getScreen(); | |
380 | } | |
381 | ||
4328bb42 | 382 | /** |
7b5261bc | 383 | * Actual mouse coordinate X. |
4328bb42 KL |
384 | */ |
385 | private int mouseX; | |
386 | ||
387 | /** | |
7b5261bc | 388 | * Actual mouse coordinate Y. |
4328bb42 KL |
389 | */ |
390 | private int mouseY; | |
391 | ||
bd8d51fa KL |
392 | /** |
393 | * Old version of mouse coordinate X. | |
394 | */ | |
395 | private int oldMouseX; | |
396 | ||
397 | /** | |
398 | * Old version mouse coordinate Y. | |
399 | */ | |
400 | private int oldMouseY; | |
401 | ||
4328bb42 | 402 | /** |
8e688b92 | 403 | * Event queue that is filled by run(). |
4328bb42 | 404 | */ |
8e688b92 KL |
405 | private List<TInputEvent> fillEventQueue; |
406 | ||
407 | /** | |
408 | * Event queue that will be drained by either primary or secondary | |
409 | * Thread. | |
410 | */ | |
411 | private List<TInputEvent> drainEventQueue; | |
4328bb42 | 412 | |
fca67db0 KL |
413 | /** |
414 | * Top-level menus in this application. | |
415 | */ | |
416 | private List<TMenu> menus; | |
417 | ||
418 | /** | |
419 | * Stack of activated sub-menus in this application. | |
420 | */ | |
421 | private List<TMenu> subMenus; | |
422 | ||
423 | /** | |
424 | * The currently acive menu. | |
425 | */ | |
426 | private TMenu activeMenu = null; | |
427 | ||
e826b451 KL |
428 | /** |
429 | * Active keyboard accelerators. | |
430 | */ | |
431 | private Map<TKeypress, TMenuItem> accelerators; | |
432 | ||
efb7af1f KL |
433 | /** |
434 | * All menu items. | |
435 | */ | |
436 | private List<TMenuItem> menuItems; | |
437 | ||
4328bb42 KL |
438 | /** |
439 | * Windows and widgets pull colors from this ColorTheme. | |
440 | */ | |
7b5261bc KL |
441 | private ColorTheme theme; |
442 | ||
443 | /** | |
444 | * Get the color theme. | |
445 | * | |
446 | * @return the theme | |
447 | */ | |
448 | public final ColorTheme getTheme() { | |
449 | return theme; | |
450 | } | |
4328bb42 | 451 | |
a06459bd KL |
452 | /** |
453 | * The top-level windows (but not menus). | |
454 | */ | |
fca67db0 | 455 | private List<TWindow> windows; |
a06459bd | 456 | |
d502a0e9 KL |
457 | /** |
458 | * Timers that are being ticked. | |
459 | */ | |
460 | private List<TTimer> timers; | |
461 | ||
4328bb42 KL |
462 | /** |
463 | * When true, exit the application. | |
464 | */ | |
92554d64 | 465 | private volatile boolean quit = false; |
4328bb42 KL |
466 | |
467 | /** | |
468 | * When true, repaint the entire screen. | |
469 | */ | |
92554d64 | 470 | private volatile boolean repaint = true; |
4328bb42 | 471 | |
4328bb42 | 472 | /** |
7b5261bc KL |
473 | * Y coordinate of the top edge of the desktop. For now this is a |
474 | * constant. Someday it would be nice to have a multi-line menu or | |
475 | * toolbars. | |
4328bb42 | 476 | */ |
48e27807 KL |
477 | private static final int desktopTop = 1; |
478 | ||
479 | /** | |
480 | * Get Y coordinate of the top edge of the desktop. | |
481 | * | |
482 | * @return Y coordinate of the top edge of the desktop | |
483 | */ | |
484 | public final int getDesktopTop() { | |
485 | return desktopTop; | |
486 | } | |
4328bb42 KL |
487 | |
488 | /** | |
489 | * Y coordinate of the bottom edge of the desktop. | |
490 | */ | |
48e27807 KL |
491 | private int desktopBottom; |
492 | ||
493 | /** | |
494 | * Get Y coordinate of the bottom edge of the desktop. | |
495 | * | |
496 | * @return Y coordinate of the bottom edge of the desktop | |
497 | */ | |
498 | public final int getDesktopBottom() { | |
499 | return desktopBottom; | |
500 | } | |
4328bb42 KL |
501 | |
502 | /** | |
503 | * Public constructor. | |
504 | * | |
a4406f4e KL |
505 | * @param backendType BackendType.XTERM, BackendType.ECMA48 or |
506 | * BackendType.SWING | |
507 | * @throws UnsupportedEncodingException if an exception is thrown when | |
508 | * creating the InputStreamReader | |
509 | */ | |
510 | public TApplication(final BackendType backendType) | |
511 | throws UnsupportedEncodingException { | |
512 | ||
513 | switch (backendType) { | |
514 | case SWING: | |
515 | backend = new SwingBackend(this); | |
516 | break; | |
517 | case XTERM: | |
518 | // Fall through... | |
519 | case ECMA48: | |
520 | backend = new ECMA48Backend(this, null, null); | |
329fd62e KL |
521 | break; |
522 | default: | |
523 | throw new IllegalArgumentException("Invalid backend type: " | |
524 | + backendType); | |
a4406f4e KL |
525 | } |
526 | TApplicationImpl(); | |
527 | } | |
528 | ||
529 | /** | |
530 | * Public constructor. The backend type will be BackendType.ECMA48. | |
531 | * | |
4328bb42 KL |
532 | * @param input an InputStream connected to the remote user, or null for |
533 | * System.in. If System.in is used, then on non-Windows systems it will | |
534 | * be put in raw mode; shutdown() will (blindly!) put System.in in cooked | |
535 | * mode. input is always converted to a Reader with UTF-8 encoding. | |
536 | * @param output an OutputStream connected to the remote user, or null | |
537 | * for System.out. output is always converted to a Writer with UTF-8 | |
538 | * encoding. | |
7b5261bc KL |
539 | * @throws UnsupportedEncodingException if an exception is thrown when |
540 | * creating the InputStreamReader | |
4328bb42 | 541 | */ |
7b5261bc KL |
542 | public TApplication(final InputStream input, |
543 | final OutputStream output) throws UnsupportedEncodingException { | |
4328bb42 | 544 | |
a4406f4e KL |
545 | backend = new ECMA48Backend(this, input, output); |
546 | TApplicationImpl(); | |
547 | } | |
30bd4abd | 548 | |
6985c572 KL |
549 | /** |
550 | * Public constructor. The backend type will be BackendType.ECMA48. | |
551 | * | |
552 | * @param input the InputStream underlying 'reader'. Its available() | |
553 | * method is used to determine if reader.read() will block or not. | |
554 | * @param reader a Reader connected to the remote user. | |
555 | * @param writer a PrintWriter connected to the remote user. | |
556 | * @param setRawMode if true, set System.in into raw mode with stty. | |
557 | * This should in general not be used. It is here solely for Demo3, | |
558 | * which uses System.in. | |
559 | * @throws IllegalArgumentException if input, reader, or writer are null. | |
560 | */ | |
561 | public TApplication(final InputStream input, final Reader reader, | |
562 | final PrintWriter writer, final boolean setRawMode) { | |
563 | ||
564 | backend = new ECMA48Backend(this, input, reader, writer, setRawMode); | |
565 | TApplicationImpl(); | |
566 | } | |
567 | ||
568 | /** | |
569 | * Public constructor. The backend type will be BackendType.ECMA48. | |
570 | * | |
571 | * @param input the InputStream underlying 'reader'. Its available() | |
572 | * method is used to determine if reader.read() will block or not. | |
573 | * @param reader a Reader connected to the remote user. | |
574 | * @param writer a PrintWriter connected to the remote user. | |
575 | * @throws IllegalArgumentException if input, reader, or writer are null. | |
576 | */ | |
577 | public TApplication(final InputStream input, final Reader reader, | |
578 | final PrintWriter writer) { | |
579 | ||
580 | this(input, reader, writer, false); | |
581 | } | |
582 | ||
a4406f4e KL |
583 | /** |
584 | * Public constructor. This hook enables use with new non-Jexer | |
585 | * backends. | |
586 | * | |
587 | * @param backend a Backend that is already ready to go. | |
588 | */ | |
589 | public TApplication(final Backend backend) { | |
590 | this.backend = backend; | |
591 | TApplicationImpl(); | |
592 | } | |
30bd4abd | 593 | |
a4406f4e KL |
594 | /** |
595 | * Finish construction once the backend is set. | |
596 | */ | |
597 | private void TApplicationImpl() { | |
8e688b92 KL |
598 | theme = new ColorTheme(); |
599 | desktopBottom = getScreen().getHeight() - 1; | |
c6940ed9 KL |
600 | fillEventQueue = new ArrayList<TInputEvent>(); |
601 | drainEventQueue = new ArrayList<TInputEvent>(); | |
8e688b92 KL |
602 | windows = new LinkedList<TWindow>(); |
603 | menus = new LinkedList<TMenu>(); | |
604 | subMenus = new LinkedList<TMenu>(); | |
d502a0e9 | 605 | timers = new LinkedList<TTimer>(); |
e826b451 | 606 | accelerators = new HashMap<TKeypress, TMenuItem>(); |
efb7af1f | 607 | menuItems = new ArrayList<TMenuItem>(); |
c6940ed9 KL |
608 | |
609 | // Setup the main consumer thread | |
610 | primaryEventHandler = new WidgetEventHandler(this, true); | |
611 | (new Thread(primaryEventHandler)).start(); | |
4328bb42 KL |
612 | } |
613 | ||
614 | /** | |
bd8d51fa KL |
615 | * Invert the cell color at a position. This is used to track the mouse. |
616 | * | |
617 | * @param x column position | |
618 | * @param y row position | |
4328bb42 | 619 | */ |
bd8d51fa KL |
620 | private void invertCell(final int x, final int y) { |
621 | synchronized (getScreen()) { | |
622 | CellAttributes attr = getScreen().getAttrXY(x, y); | |
623 | attr.setForeColor(attr.getForeColor().invert()); | |
624 | attr.setBackColor(attr.getBackColor().invert()); | |
625 | getScreen().putAttrXY(x, y, attr, false); | |
7b5261bc | 626 | } |
4328bb42 KL |
627 | } |
628 | ||
629 | /** | |
630 | * Draw everything. | |
631 | */ | |
7c870d89 | 632 | private void drawAll() { |
99144c71 KL |
633 | if (debugThreads) { |
634 | System.err.printf("drawAll() enter\n"); | |
635 | } | |
636 | ||
bd8d51fa | 637 | if (!repaint) { |
ef368bd0 KL |
638 | if ((oldMouseX != mouseX) || (oldMouseY != mouseY)) { |
639 | // The only thing that has happened is the mouse moved. | |
640 | // Clear the old position and draw the new position. | |
641 | invertCell(oldMouseX, oldMouseY); | |
642 | invertCell(mouseX, mouseY); | |
643 | oldMouseX = mouseX; | |
644 | oldMouseY = mouseY; | |
bd8d51fa KL |
645 | } |
646 | if (getScreen().isDirty()) { | |
647 | backend.flushScreen(); | |
648 | } | |
7b5261bc KL |
649 | return; |
650 | } | |
651 | ||
99144c71 KL |
652 | if (debugThreads) { |
653 | System.err.printf("drawAll() REDRAW\n"); | |
654 | } | |
655 | ||
7b5261bc KL |
656 | // If true, the cursor is not visible |
657 | boolean cursor = false; | |
658 | ||
659 | // Start with a clean screen | |
a06459bd | 660 | getScreen().clear(); |
7b5261bc KL |
661 | |
662 | // Draw the background | |
663 | CellAttributes background = theme.getColor("tapplication.background"); | |
a06459bd | 664 | getScreen().putAll(GraphicsChars.HATCH, background); |
7b5261bc | 665 | |
7b5261bc | 666 | // Draw each window in reverse Z order |
a06459bd KL |
667 | List<TWindow> sorted = new LinkedList<TWindow>(windows); |
668 | Collections.sort(sorted); | |
669 | Collections.reverse(sorted); | |
670 | for (TWindow window: sorted) { | |
671 | window.drawChildren(); | |
7b5261bc KL |
672 | } |
673 | ||
674 | // Draw the blank menubar line - reset the screen clipping first so | |
675 | // it won't trim it out. | |
a06459bd KL |
676 | getScreen().resetClipping(); |
677 | getScreen().hLineXY(0, 0, getScreen().getWidth(), ' ', | |
7b5261bc KL |
678 | theme.getColor("tmenu")); |
679 | // Now draw the menus. | |
680 | int x = 1; | |
fca67db0 | 681 | for (TMenu menu: menus) { |
7b5261bc KL |
682 | CellAttributes menuColor; |
683 | CellAttributes menuMnemonicColor; | |
7c870d89 | 684 | if (menu.isActive()) { |
7b5261bc KL |
685 | menuColor = theme.getColor("tmenu.highlighted"); |
686 | menuMnemonicColor = theme.getColor("tmenu.mnemonic.highlighted"); | |
687 | } else { | |
688 | menuColor = theme.getColor("tmenu"); | |
689 | menuMnemonicColor = theme.getColor("tmenu.mnemonic"); | |
690 | } | |
691 | // Draw the menu title | |
fca67db0 | 692 | getScreen().hLineXY(x, 0, menu.getTitle().length() + 2, ' ', |
7b5261bc | 693 | menuColor); |
0d47c546 | 694 | getScreen().putStringXY(x + 1, 0, menu.getTitle(), menuColor); |
7b5261bc | 695 | // Draw the highlight character |
fca67db0 KL |
696 | getScreen().putCharXY(x + 1 + menu.getMnemonic().getShortcutIdx(), |
697 | 0, menu.getMnemonic().getShortcut(), menuMnemonicColor); | |
7b5261bc | 698 | |
7c870d89 | 699 | if (menu.isActive()) { |
a06459bd | 700 | menu.drawChildren(); |
7b5261bc | 701 | // Reset the screen clipping so we can draw the next title. |
a06459bd | 702 | getScreen().resetClipping(); |
7b5261bc | 703 | } |
fca67db0 | 704 | x += menu.getTitle().length() + 2; |
7b5261bc KL |
705 | } |
706 | ||
a06459bd | 707 | for (TMenu menu: subMenus) { |
7b5261bc | 708 | // Reset the screen clipping so we can draw the next sub-menu. |
a06459bd KL |
709 | getScreen().resetClipping(); |
710 | menu.drawChildren(); | |
7b5261bc | 711 | } |
7b5261bc KL |
712 | |
713 | // Draw the mouse pointer | |
bd8d51fa | 714 | invertCell(mouseX, mouseY); |
7b5261bc | 715 | |
7b5261bc KL |
716 | // Place the cursor if it is visible |
717 | TWidget activeWidget = null; | |
a06459bd KL |
718 | if (sorted.size() > 0) { |
719 | activeWidget = sorted.get(sorted.size() - 1).getActiveChild(); | |
7c870d89 | 720 | if (activeWidget.isCursorVisible()) { |
a06459bd | 721 | getScreen().putCursor(true, activeWidget.getCursorAbsoluteX(), |
7b5261bc KL |
722 | activeWidget.getCursorAbsoluteY()); |
723 | cursor = true; | |
724 | } | |
725 | } | |
726 | ||
727 | // Kill the cursor | |
fca67db0 | 728 | if (!cursor) { |
a06459bd | 729 | getScreen().hideCursor(); |
7b5261bc | 730 | } |
7b5261bc KL |
731 | |
732 | // Flush the screen contents | |
733 | backend.flushScreen(); | |
734 | ||
735 | repaint = false; | |
4328bb42 KL |
736 | } |
737 | ||
738 | /** | |
7b5261bc | 739 | * Run this application until it exits. |
4328bb42 | 740 | */ |
a4406f4e | 741 | public void run() { |
7b5261bc KL |
742 | while (!quit) { |
743 | // Timeout is in milliseconds, so default timeout after 1 second | |
744 | // of inactivity. | |
92554d64 KL |
745 | long timeout = 0; |
746 | ||
747 | // If I've got no updates to render, wait for something from the | |
748 | // backend or a timer. | |
bd8d51fa KL |
749 | if (!repaint |
750 | && ((mouseX == oldMouseX) && (mouseY == oldMouseY)) | |
751 | ) { | |
e3dfbd23 KL |
752 | // Never sleep longer than 50 millis. We need time for |
753 | // windows with background tasks to update the display, and | |
754 | // still flip buffers reasonably quickly in | |
755 | // backend.flushPhysical(). | |
756 | timeout = getSleepTime(50); | |
8e688b92 | 757 | } |
92554d64 KL |
758 | |
759 | if (timeout > 0) { | |
760 | // As of now, I've got nothing to do: no I/O, nothing from | |
761 | // the consumer threads, no timers that need to run ASAP. So | |
762 | // wait until either the backend or the consumer threads have | |
763 | // something to do. | |
764 | try { | |
765 | synchronized (this) { | |
766 | this.wait(timeout); | |
767 | } | |
768 | } catch (InterruptedException e) { | |
769 | // I'm awake and don't care why, let's see what's going | |
770 | // on out there. | |
8e688b92 | 771 | } |
bd8d51fa | 772 | repaint = true; |
7b5261bc KL |
773 | } |
774 | ||
ef368bd0 KL |
775 | // Prevent stepping on the primary or secondary event handler. |
776 | stopEventHandlers(); | |
777 | ||
8e688b92 | 778 | // Pull any pending I/O events |
92554d64 | 779 | backend.getEvents(fillEventQueue); |
8e688b92 KL |
780 | |
781 | // Dispatch each event to the appropriate handler, one at a time. | |
782 | for (;;) { | |
783 | TInputEvent event = null; | |
ef368bd0 KL |
784 | if (fillEventQueue.size() == 0) { |
785 | break; | |
8e688b92 | 786 | } |
ef368bd0 | 787 | event = fillEventQueue.remove(0); |
8e688b92 KL |
788 | metaHandleEvent(event); |
789 | } | |
7b5261bc | 790 | |
92554d64 | 791 | // Wake a consumer thread if we have any pending events. |
ef368bd0 KL |
792 | if (drainEventQueue.size() > 0) { |
793 | wakeEventHandler(); | |
92554d64 KL |
794 | } |
795 | ||
7b5261bc KL |
796 | // Process timers and call doIdle()'s |
797 | doIdle(); | |
798 | ||
799 | // Update the screen | |
87a17f3c KL |
800 | synchronized (getScreen()) { |
801 | drawAll(); | |
802 | } | |
99144c71 KL |
803 | |
804 | // Let the event handlers run again. | |
805 | startEventHandlers(); | |
7b5261bc | 806 | |
92554d64 KL |
807 | } // while (!quit) |
808 | ||
809 | // Shutdown the event consumer threads | |
810 | if (secondaryEventHandler != null) { | |
811 | synchronized (secondaryEventHandler) { | |
812 | secondaryEventHandler.notify(); | |
813 | } | |
814 | } | |
815 | if (primaryEventHandler != null) { | |
816 | synchronized (primaryEventHandler) { | |
817 | primaryEventHandler.notify(); | |
818 | } | |
7b5261bc KL |
819 | } |
820 | ||
92554d64 | 821 | // Shutdown the user I/O thread(s) |
7b5261bc | 822 | backend.shutdown(); |
92554d64 KL |
823 | |
824 | // Close all the windows. This gives them an opportunity to release | |
825 | // resources. | |
826 | closeAllWindows(); | |
827 | ||
4328bb42 KL |
828 | } |
829 | ||
830 | /** | |
831 | * Peek at certain application-level events, add to eventQueue, and wake | |
8e688b92 | 832 | * up the consuming Thread. |
4328bb42 | 833 | * |
8e688b92 | 834 | * @param event the input event to consume |
4328bb42 | 835 | */ |
8e688b92 | 836 | private void metaHandleEvent(final TInputEvent event) { |
7b5261bc | 837 | |
a83fea2b KL |
838 | if (debugEvents) { |
839 | System.err.printf(String.format("metaHandleEvents event: %s\n", | |
840 | event)); System.err.flush(); | |
841 | } | |
7b5261bc | 842 | |
8e688b92 KL |
843 | if (quit) { |
844 | // Do no more processing if the application is already trying | |
845 | // to exit. | |
846 | return; | |
847 | } | |
7b5261bc | 848 | |
8e688b92 | 849 | // Special application-wide events ------------------------------- |
7b5261bc | 850 | |
8e688b92 KL |
851 | // Abort everything |
852 | if (event instanceof TCommandEvent) { | |
853 | TCommandEvent command = (TCommandEvent) event; | |
854 | if (command.getCmd().equals(cmAbort)) { | |
855 | quit = true; | |
856 | return; | |
7b5261bc | 857 | } |
8e688b92 | 858 | } |
7b5261bc | 859 | |
8e688b92 KL |
860 | // Screen resize |
861 | if (event instanceof TResizeEvent) { | |
862 | TResizeEvent resize = (TResizeEvent) event; | |
bd8d51fa KL |
863 | synchronized (getScreen()) { |
864 | getScreen().setDimensions(resize.getWidth(), | |
865 | resize.getHeight()); | |
866 | desktopBottom = getScreen().getHeight() - 1; | |
867 | mouseX = 0; | |
868 | mouseY = 0; | |
869 | oldMouseX = 0; | |
870 | oldMouseY = 0; | |
871 | } | |
8e688b92 KL |
872 | return; |
873 | } | |
7b5261bc | 874 | |
8e688b92 KL |
875 | // Peek at the mouse position |
876 | if (event instanceof TMouseEvent) { | |
877 | TMouseEvent mouse = (TMouseEvent) event; | |
bd8d51fa KL |
878 | synchronized (getScreen()) { |
879 | if ((mouseX != mouse.getX()) || (mouseY != mouse.getY())) { | |
880 | oldMouseX = mouseX; | |
881 | oldMouseY = mouseY; | |
882 | mouseX = mouse.getX(); | |
883 | mouseY = mouse.getY(); | |
884 | } | |
7b5261bc | 885 | } |
8e688b92 | 886 | } |
7b5261bc | 887 | |
bd8d51fa | 888 | // Put into the main queue |
ef368bd0 | 889 | drainEventQueue.add(event); |
4328bb42 KL |
890 | } |
891 | ||
a06459bd KL |
892 | /** |
893 | * Dispatch one event to the appropriate widget or application-level | |
fca67db0 KL |
894 | * event handler. This is the primary event handler, it has the normal |
895 | * application-wide event handling. | |
a06459bd KL |
896 | * |
897 | * @param event the input event to consume | |
fca67db0 | 898 | * @see #secondaryHandleEvent(TInputEvent event) |
a06459bd | 899 | */ |
fca67db0 KL |
900 | private void primaryHandleEvent(final TInputEvent event) { |
901 | ||
a83fea2b KL |
902 | if (debugEvents) { |
903 | System.err.printf("Handle event: %s\n", event); | |
904 | } | |
fca67db0 KL |
905 | |
906 | // Special application-wide events ----------------------------------- | |
907 | ||
908 | // Peek at the mouse position | |
909 | if (event instanceof TMouseEvent) { | |
910 | // See if we need to switch focus to another window or the menu | |
911 | checkSwitchFocus((TMouseEvent) event); | |
912 | } | |
913 | ||
914 | // Handle menu events | |
915 | if ((activeMenu != null) && !(event instanceof TCommandEvent)) { | |
916 | TMenu menu = activeMenu; | |
917 | ||
918 | if (event instanceof TMouseEvent) { | |
919 | TMouseEvent mouse = (TMouseEvent) event; | |
920 | ||
921 | while (subMenus.size() > 0) { | |
922 | TMenu subMenu = subMenus.get(subMenus.size() - 1); | |
923 | if (subMenu.mouseWouldHit(mouse)) { | |
924 | break; | |
925 | } | |
926 | if ((mouse.getType() == TMouseEvent.Type.MOUSE_MOTION) | |
7c870d89 KL |
927 | && (!mouse.isMouse1()) |
928 | && (!mouse.isMouse2()) | |
929 | && (!mouse.isMouse3()) | |
930 | && (!mouse.isMouseWheelUp()) | |
931 | && (!mouse.isMouseWheelDown()) | |
fca67db0 KL |
932 | ) { |
933 | break; | |
934 | } | |
935 | // We navigated away from a sub-menu, so close it | |
936 | closeSubMenu(); | |
937 | } | |
938 | ||
939 | // Convert the mouse relative x/y to menu coordinates | |
940 | assert (mouse.getX() == mouse.getAbsoluteX()); | |
941 | assert (mouse.getY() == mouse.getAbsoluteY()); | |
942 | if (subMenus.size() > 0) { | |
943 | menu = subMenus.get(subMenus.size() - 1); | |
944 | } | |
945 | mouse.setX(mouse.getX() - menu.getX()); | |
946 | mouse.setY(mouse.getY() - menu.getY()); | |
947 | } | |
948 | menu.handleEvent(event); | |
949 | return; | |
950 | } | |
a06459bd | 951 | |
fca67db0 KL |
952 | if (event instanceof TKeypressEvent) { |
953 | TKeypressEvent keypress = (TKeypressEvent) event; | |
e826b451 | 954 | |
fca67db0 KL |
955 | // See if this key matches an accelerator, and if so dispatch the |
956 | // menu event. | |
957 | TKeypress keypressLowercase = keypress.getKey().toLowerCase(); | |
e826b451 KL |
958 | TMenuItem item = null; |
959 | synchronized (accelerators) { | |
960 | item = accelerators.get(keypressLowercase); | |
961 | } | |
fca67db0 | 962 | if (item != null) { |
7c870d89 | 963 | if (item.isEnabled()) { |
bd8d51fa KL |
964 | // Let the menu item dispatch |
965 | item.dispatch(); | |
fca67db0 KL |
966 | return; |
967 | } | |
968 | } | |
bd8d51fa KL |
969 | // Handle the keypress |
970 | if (onKeypress(keypress)) { | |
971 | return; | |
972 | } | |
fca67db0 | 973 | } |
a06459bd | 974 | |
fca67db0 KL |
975 | if (event instanceof TCommandEvent) { |
976 | if (onCommand((TCommandEvent) event)) { | |
977 | return; | |
978 | } | |
979 | } | |
980 | ||
981 | if (event instanceof TMenuEvent) { | |
982 | if (onMenu((TMenuEvent) event)) { | |
983 | return; | |
984 | } | |
985 | } | |
986 | ||
987 | // Dispatch events to the active window ------------------------------- | |
988 | for (TWindow window: windows) { | |
7c870d89 | 989 | if (window.isActive()) { |
a06459bd KL |
990 | if (event instanceof TMouseEvent) { |
991 | TMouseEvent mouse = (TMouseEvent) event; | |
fca67db0 KL |
992 | // Convert the mouse relative x/y to window coordinates |
993 | assert (mouse.getX() == mouse.getAbsoluteX()); | |
994 | assert (mouse.getY() == mouse.getAbsoluteY()); | |
995 | mouse.setX(mouse.getX() - window.getX()); | |
996 | mouse.setY(mouse.getY() - window.getY()); | |
997 | } | |
a83fea2b KL |
998 | if (debugEvents) { |
999 | System.err.printf("TApplication dispatch event: %s\n", | |
1000 | event); | |
1001 | } | |
fca67db0 KL |
1002 | window.handleEvent(event); |
1003 | break; | |
1004 | } | |
1005 | } | |
1006 | } | |
1007 | /** | |
1008 | * Dispatch one event to the appropriate widget or application-level | |
1009 | * event handler. This is the secondary event handler used by certain | |
1010 | * special dialogs (currently TMessageBox and TFileOpenBox). | |
1011 | * | |
1012 | * @param event the input event to consume | |
1013 | * @see #primaryHandleEvent(TInputEvent event) | |
1014 | */ | |
1015 | private void secondaryHandleEvent(final TInputEvent event) { | |
c6940ed9 KL |
1016 | secondaryEventReceiver.handleEvent(event); |
1017 | } | |
1018 | ||
1019 | /** | |
1020 | * Enable a widget to override the primary event thread. | |
1021 | * | |
1022 | * @param widget widget that will receive events | |
1023 | */ | |
1024 | public final void enableSecondaryEventReceiver(final TWidget widget) { | |
1025 | assert (secondaryEventReceiver == null); | |
1026 | assert (secondaryEventHandler == null); | |
a043164f KL |
1027 | assert ((widget instanceof TMessageBox) |
1028 | || (widget instanceof TFileOpenBox)); | |
c6940ed9 KL |
1029 | secondaryEventReceiver = widget; |
1030 | secondaryEventHandler = new WidgetEventHandler(this, false); | |
1031 | (new Thread(secondaryEventHandler)).start(); | |
c6940ed9 KL |
1032 | } |
1033 | ||
1034 | /** | |
1035 | * Yield to the secondary thread. | |
1036 | */ | |
1037 | public final void yield() { | |
1038 | assert (secondaryEventReceiver != null); | |
99144c71 KL |
1039 | // This is where we handoff the event handler lock from the primary |
1040 | // to secondary thread. We unlock here, and in a future loop the | |
1041 | // secondary thread locks again. When it gives up, we have the | |
1042 | // single lock back. | |
1043 | boolean oldLock = unlockHandleEvent(); | |
329fd62e | 1044 | assert (oldLock); |
99144c71 | 1045 | |
c6940ed9 | 1046 | while (secondaryEventReceiver != null) { |
92554d64 | 1047 | synchronized (primaryEventHandler) { |
c6940ed9 | 1048 | try { |
92554d64 | 1049 | primaryEventHandler.wait(); |
c6940ed9 KL |
1050 | } catch (InterruptedException e) { |
1051 | // SQUASH | |
1052 | } | |
1053 | } | |
1054 | } | |
a06459bd KL |
1055 | } |
1056 | ||
4328bb42 KL |
1057 | /** |
1058 | * Do stuff when there is no user input. | |
1059 | */ | |
1060 | private void doIdle() { | |
99144c71 KL |
1061 | if (debugThreads) { |
1062 | System.err.printf("doIdle()\n"); | |
1063 | } | |
1064 | ||
7b5261bc | 1065 | // Now run any timers that have timed out |
d502a0e9 KL |
1066 | Date now = new Date(); |
1067 | List<TTimer> keepTimers = new LinkedList<TTimer>(); | |
1068 | for (TTimer timer: timers) { | |
92554d64 | 1069 | if (timer.getNextTick().getTime() <= now.getTime()) { |
d502a0e9 | 1070 | timer.tick(); |
c6940ed9 | 1071 | if (timer.recurring) { |
d502a0e9 | 1072 | keepTimers.add(timer); |
7b5261bc KL |
1073 | } |
1074 | } else { | |
d502a0e9 | 1075 | keepTimers.add(timer); |
7b5261bc KL |
1076 | } |
1077 | } | |
1078 | timers = keepTimers; | |
1079 | ||
1080 | // Call onIdle's | |
d502a0e9 KL |
1081 | for (TWindow window: windows) { |
1082 | window.onIdle(); | |
7b5261bc | 1083 | } |
4328bb42 | 1084 | } |
7d4115a5 | 1085 | |
4328bb42 KL |
1086 | /** |
1087 | * Get the amount of time I can sleep before missing a Timer tick. | |
1088 | * | |
92554d64 | 1089 | * @param timeout = initial (maximum) timeout in millis |
4328bb42 KL |
1090 | * @return number of milliseconds between now and the next timer event |
1091 | */ | |
bd8d51fa | 1092 | private long getSleepTime(final long timeout) { |
d502a0e9 | 1093 | Date now = new Date(); |
92554d64 | 1094 | long nowTime = now.getTime(); |
d502a0e9 KL |
1095 | long sleepTime = timeout; |
1096 | for (TTimer timer: timers) { | |
92554d64 KL |
1097 | long nextTickTime = timer.getNextTick().getTime(); |
1098 | if (nextTickTime < nowTime) { | |
7b5261bc KL |
1099 | return 0; |
1100 | } | |
92554d64 KL |
1101 | |
1102 | long timeDifference = nextTickTime - nowTime; | |
1103 | if (timeDifference < sleepTime) { | |
1104 | sleepTime = timeDifference; | |
7b5261bc KL |
1105 | } |
1106 | } | |
d502a0e9 | 1107 | assert (sleepTime >= 0); |
92554d64 KL |
1108 | assert (sleepTime <= timeout); |
1109 | return sleepTime; | |
7d4115a5 | 1110 | } |
4328bb42 | 1111 | |
48e27807 KL |
1112 | /** |
1113 | * Close window. Note that the window's destructor is NOT called by this | |
1114 | * method, instead the GC is assumed to do the cleanup. | |
1115 | * | |
1116 | * @param window the window to remove | |
1117 | */ | |
1118 | public final void closeWindow(final TWindow window) { | |
bb35d919 KL |
1119 | synchronized (windows) { |
1120 | int z = window.getZ(); | |
1121 | window.setZ(-1); | |
efb7af1f | 1122 | window.onUnfocus(); |
bb35d919 KL |
1123 | Collections.sort(windows); |
1124 | windows.remove(0); | |
1125 | TWindow activeWindow = null; | |
1126 | for (TWindow w: windows) { | |
1127 | if (w.getZ() > z) { | |
1128 | w.setZ(w.getZ() - 1); | |
1129 | if (w.getZ() == 0) { | |
1130 | w.setActive(true); | |
efb7af1f | 1131 | w.onFocus(); |
bb35d919 KL |
1132 | assert (activeWindow == null); |
1133 | activeWindow = w; | |
1134 | } else { | |
efb7af1f KL |
1135 | if (w.isActive()) { |
1136 | w.setActive(false); | |
1137 | w.onUnfocus(); | |
1138 | } | |
bb35d919 | 1139 | } |
48e27807 KL |
1140 | } |
1141 | } | |
1142 | } | |
1143 | ||
1144 | // Perform window cleanup | |
1145 | window.onClose(); | |
1146 | ||
48e27807 | 1147 | // Check if we are closing a TMessageBox or similar |
c6940ed9 KL |
1148 | if (secondaryEventReceiver != null) { |
1149 | assert (secondaryEventHandler != null); | |
48e27807 KL |
1150 | |
1151 | // Do not send events to the secondaryEventReceiver anymore, the | |
1152 | // window is closed. | |
1153 | secondaryEventReceiver = null; | |
1154 | ||
92554d64 KL |
1155 | // Wake the secondary thread, it will wake the primary as it |
1156 | // exits. | |
1157 | synchronized (secondaryEventHandler) { | |
1158 | secondaryEventHandler.notify(); | |
48e27807 KL |
1159 | } |
1160 | } | |
48e27807 KL |
1161 | } |
1162 | ||
1163 | /** | |
1164 | * Switch to the next window. | |
1165 | * | |
1166 | * @param forward if true, then switch to the next window in the list, | |
1167 | * otherwise switch to the previous window in the list | |
1168 | */ | |
1169 | public final void switchWindow(final boolean forward) { | |
48e27807 | 1170 | // Only switch if there are multiple windows |
fca67db0 | 1171 | if (windows.size() < 2) { |
48e27807 KL |
1172 | return; |
1173 | } | |
1174 | ||
bb35d919 KL |
1175 | synchronized (windows) { |
1176 | ||
1177 | // Swap z/active between active window and the next in the list | |
1178 | int activeWindowI = -1; | |
1179 | for (int i = 0; i < windows.size(); i++) { | |
7c870d89 | 1180 | if (windows.get(i).isActive()) { |
bb35d919 KL |
1181 | activeWindowI = i; |
1182 | break; | |
1183 | } | |
48e27807 | 1184 | } |
bb35d919 | 1185 | assert (activeWindowI >= 0); |
48e27807 | 1186 | |
bb35d919 KL |
1187 | // Do not switch if a window is modal |
1188 | if (windows.get(activeWindowI).isModal()) { | |
1189 | return; | |
1190 | } | |
48e27807 | 1191 | |
bb35d919 KL |
1192 | int nextWindowI; |
1193 | if (forward) { | |
1194 | nextWindowI = (activeWindowI + 1) % windows.size(); | |
48e27807 | 1195 | } else { |
bb35d919 KL |
1196 | if (activeWindowI == 0) { |
1197 | nextWindowI = windows.size() - 1; | |
1198 | } else { | |
1199 | nextWindowI = activeWindowI - 1; | |
1200 | } | |
48e27807 | 1201 | } |
bb35d919 KL |
1202 | windows.get(activeWindowI).setActive(false); |
1203 | windows.get(activeWindowI).setZ(windows.get(nextWindowI).getZ()); | |
efb7af1f | 1204 | windows.get(activeWindowI).onUnfocus(); |
bb35d919 KL |
1205 | windows.get(nextWindowI).setZ(0); |
1206 | windows.get(nextWindowI).setActive(true); | |
efb7af1f | 1207 | windows.get(nextWindowI).onFocus(); |
bb35d919 KL |
1208 | |
1209 | } // synchronized (windows) | |
48e27807 | 1210 | |
48e27807 KL |
1211 | } |
1212 | ||
1213 | /** | |
1214 | * Add a window to my window list and make it active. | |
1215 | * | |
1216 | * @param window new window to add | |
1217 | */ | |
1218 | public final void addWindow(final TWindow window) { | |
bb35d919 KL |
1219 | synchronized (windows) { |
1220 | // Do not allow a modal window to spawn a non-modal window | |
1221 | if ((windows.size() > 0) && (windows.get(0).isModal())) { | |
1222 | assert (window.isModal()); | |
1223 | } | |
1224 | for (TWindow w: windows) { | |
efb7af1f KL |
1225 | if (w.isActive()) { |
1226 | w.setActive(false); | |
1227 | w.onUnfocus(); | |
1228 | } | |
bb35d919 KL |
1229 | w.setZ(w.getZ() + 1); |
1230 | } | |
1231 | windows.add(window); | |
bb35d919 | 1232 | window.setZ(0); |
efb7af1f KL |
1233 | window.setActive(true); |
1234 | window.onFocus(); | |
48e27807 | 1235 | } |
48e27807 KL |
1236 | } |
1237 | ||
fca67db0 KL |
1238 | /** |
1239 | * Check if there is a system-modal window on top. | |
1240 | * | |
1241 | * @return true if the active window is modal | |
1242 | */ | |
1243 | private boolean modalWindowActive() { | |
1244 | if (windows.size() == 0) { | |
1245 | return false; | |
1246 | } | |
1247 | return windows.get(windows.size() - 1).isModal(); | |
1248 | } | |
1249 | ||
1250 | /** | |
1251 | * Check if a mouse event would hit either the active menu or any open | |
1252 | * sub-menus. | |
1253 | * | |
1254 | * @param mouse mouse event | |
1255 | * @return true if the mouse would hit the active menu or an open | |
1256 | * sub-menu | |
1257 | */ | |
1258 | private boolean mouseOnMenu(final TMouseEvent mouse) { | |
1259 | assert (activeMenu != null); | |
1260 | List<TMenu> menus = new LinkedList<TMenu>(subMenus); | |
1261 | Collections.reverse(menus); | |
1262 | for (TMenu menu: menus) { | |
1263 | if (menu.mouseWouldHit(mouse)) { | |
1264 | return true; | |
1265 | } | |
1266 | } | |
1267 | return activeMenu.mouseWouldHit(mouse); | |
1268 | } | |
1269 | ||
1270 | /** | |
1271 | * See if we need to switch window or activate the menu based on | |
1272 | * a mouse click. | |
1273 | * | |
1274 | * @param mouse mouse event | |
1275 | */ | |
1276 | private void checkSwitchFocus(final TMouseEvent mouse) { | |
1277 | ||
1278 | if ((mouse.getType() == TMouseEvent.Type.MOUSE_DOWN) | |
1279 | && (activeMenu != null) | |
1280 | && (mouse.getAbsoluteY() != 0) | |
1281 | && (!mouseOnMenu(mouse)) | |
1282 | ) { | |
1283 | // They clicked outside the active menu, turn it off | |
1284 | activeMenu.setActive(false); | |
1285 | activeMenu = null; | |
1286 | for (TMenu menu: subMenus) { | |
1287 | menu.setActive(false); | |
1288 | } | |
1289 | subMenus.clear(); | |
1290 | // Continue checks | |
1291 | } | |
1292 | ||
1293 | // See if they hit the menu bar | |
1294 | if ((mouse.getType() == TMouseEvent.Type.MOUSE_DOWN) | |
7c870d89 | 1295 | && (mouse.isMouse1()) |
fca67db0 KL |
1296 | && (!modalWindowActive()) |
1297 | && (mouse.getAbsoluteY() == 0) | |
1298 | ) { | |
1299 | ||
1300 | for (TMenu menu: subMenus) { | |
1301 | menu.setActive(false); | |
1302 | } | |
1303 | subMenus.clear(); | |
1304 | ||
1305 | // They selected the menu, go activate it | |
1306 | for (TMenu menu: menus) { | |
1307 | if ((mouse.getAbsoluteX() >= menu.getX()) | |
1308 | && (mouse.getAbsoluteX() < menu.getX() | |
1309 | + menu.getTitle().length() + 2) | |
1310 | ) { | |
1311 | menu.setActive(true); | |
1312 | activeMenu = menu; | |
1313 | } else { | |
1314 | menu.setActive(false); | |
1315 | } | |
1316 | } | |
fca67db0 KL |
1317 | return; |
1318 | } | |
1319 | ||
1320 | // See if they hit the menu bar | |
1321 | if ((mouse.getType() == TMouseEvent.Type.MOUSE_MOTION) | |
7c870d89 | 1322 | && (mouse.isMouse1()) |
fca67db0 KL |
1323 | && (activeMenu != null) |
1324 | && (mouse.getAbsoluteY() == 0) | |
1325 | ) { | |
1326 | ||
1327 | TMenu oldMenu = activeMenu; | |
1328 | for (TMenu menu: subMenus) { | |
1329 | menu.setActive(false); | |
1330 | } | |
1331 | subMenus.clear(); | |
1332 | ||
1333 | // See if we should switch menus | |
1334 | for (TMenu menu: menus) { | |
1335 | if ((mouse.getAbsoluteX() >= menu.getX()) | |
1336 | && (mouse.getAbsoluteX() < menu.getX() | |
1337 | + menu.getTitle().length() + 2) | |
1338 | ) { | |
1339 | menu.setActive(true); | |
1340 | activeMenu = menu; | |
1341 | } | |
1342 | } | |
1343 | if (oldMenu != activeMenu) { | |
1344 | // They switched menus | |
1345 | oldMenu.setActive(false); | |
1346 | } | |
fca67db0 KL |
1347 | return; |
1348 | } | |
1349 | ||
1350 | // Only switch if there are multiple windows | |
1351 | if (windows.size() < 2) { | |
1352 | return; | |
1353 | } | |
1354 | ||
1355 | // Switch on the upclick | |
1356 | if (mouse.getType() != TMouseEvent.Type.MOUSE_UP) { | |
1357 | return; | |
1358 | } | |
1359 | ||
bb35d919 KL |
1360 | synchronized (windows) { |
1361 | Collections.sort(windows); | |
1362 | if (windows.get(0).isModal()) { | |
1363 | // Modal windows don't switch | |
1364 | return; | |
1365 | } | |
fca67db0 | 1366 | |
bb35d919 KL |
1367 | for (TWindow window: windows) { |
1368 | assert (!window.isModal()); | |
1369 | if (window.mouseWouldHit(mouse)) { | |
1370 | if (window == windows.get(0)) { | |
1371 | // Clicked on the same window, nothing to do | |
1372 | return; | |
1373 | } | |
1374 | ||
1375 | // We will be switching to another window | |
7c870d89 KL |
1376 | assert (windows.get(0).isActive()); |
1377 | assert (!window.isActive()); | |
efb7af1f | 1378 | windows.get(0).onUnfocus(); |
bb35d919 KL |
1379 | windows.get(0).setActive(false); |
1380 | windows.get(0).setZ(window.getZ()); | |
1381 | window.setZ(0); | |
1382 | window.setActive(true); | |
efb7af1f | 1383 | window.onFocus(); |
fca67db0 KL |
1384 | return; |
1385 | } | |
fca67db0 KL |
1386 | } |
1387 | } | |
1388 | ||
1389 | // Clicked on the background, nothing to do | |
1390 | return; | |
1391 | } | |
1392 | ||
1393 | /** | |
1394 | * Turn off the menu. | |
1395 | */ | |
928811d8 | 1396 | public final void closeMenu() { |
fca67db0 KL |
1397 | if (activeMenu != null) { |
1398 | activeMenu.setActive(false); | |
1399 | activeMenu = null; | |
1400 | for (TMenu menu: subMenus) { | |
1401 | menu.setActive(false); | |
1402 | } | |
1403 | subMenus.clear(); | |
1404 | } | |
fca67db0 KL |
1405 | } |
1406 | ||
1407 | /** | |
1408 | * Turn off a sub-menu. | |
1409 | */ | |
928811d8 | 1410 | public final void closeSubMenu() { |
fca67db0 KL |
1411 | assert (activeMenu != null); |
1412 | TMenu item = subMenus.get(subMenus.size() - 1); | |
1413 | assert (item != null); | |
1414 | item.setActive(false); | |
1415 | subMenus.remove(subMenus.size() - 1); | |
fca67db0 KL |
1416 | } |
1417 | ||
1418 | /** | |
1419 | * Switch to the next menu. | |
1420 | * | |
1421 | * @param forward if true, then switch to the next menu in the list, | |
1422 | * otherwise switch to the previous menu in the list | |
1423 | */ | |
928811d8 | 1424 | public final void switchMenu(final boolean forward) { |
fca67db0 KL |
1425 | assert (activeMenu != null); |
1426 | ||
1427 | for (TMenu menu: subMenus) { | |
1428 | menu.setActive(false); | |
1429 | } | |
1430 | subMenus.clear(); | |
1431 | ||
1432 | for (int i = 0; i < menus.size(); i++) { | |
1433 | if (activeMenu == menus.get(i)) { | |
1434 | if (forward) { | |
1435 | if (i < menus.size() - 1) { | |
1436 | i++; | |
1437 | } | |
1438 | } else { | |
1439 | if (i > 0) { | |
1440 | i--; | |
1441 | } | |
1442 | } | |
1443 | activeMenu.setActive(false); | |
1444 | activeMenu = menus.get(i); | |
1445 | activeMenu.setActive(true); | |
fca67db0 KL |
1446 | return; |
1447 | } | |
1448 | } | |
1449 | } | |
1450 | ||
1451 | /** | |
1452 | * Method that TApplication subclasses can override to handle menu or | |
1453 | * posted command events. | |
1454 | * | |
1455 | * @param command command event | |
1456 | * @return if true, this event was consumed | |
1457 | */ | |
1458 | protected boolean onCommand(final TCommandEvent command) { | |
fca67db0 KL |
1459 | // Default: handle cmExit |
1460 | if (command.equals(cmExit)) { | |
1461 | if (messageBox("Confirmation", "Exit application?", | |
c6940ed9 | 1462 | TMessageBox.Type.YESNO).getResult() == TMessageBox.Result.YES) { |
fca67db0 KL |
1463 | quit = true; |
1464 | } | |
fca67db0 KL |
1465 | return true; |
1466 | } | |
1467 | ||
1468 | if (command.equals(cmShell)) { | |
34a42e78 | 1469 | openTerminal(0, 0, TWindow.RESIZABLE); |
fca67db0 KL |
1470 | return true; |
1471 | } | |
1472 | ||
1473 | if (command.equals(cmTile)) { | |
1474 | tileWindows(); | |
fca67db0 KL |
1475 | return true; |
1476 | } | |
1477 | if (command.equals(cmCascade)) { | |
1478 | cascadeWindows(); | |
fca67db0 KL |
1479 | return true; |
1480 | } | |
1481 | if (command.equals(cmCloseAll)) { | |
1482 | closeAllWindows(); | |
fca67db0 KL |
1483 | return true; |
1484 | } | |
c6940ed9 | 1485 | |
fca67db0 KL |
1486 | return false; |
1487 | } | |
1488 | ||
1489 | /** | |
1490 | * Method that TApplication subclasses can override to handle menu | |
1491 | * events. | |
1492 | * | |
1493 | * @param menu menu event | |
1494 | * @return if true, this event was consumed | |
1495 | */ | |
1496 | protected boolean onMenu(final TMenuEvent menu) { | |
1497 | ||
fca67db0 | 1498 | // Default: handle MID_EXIT |
8e688b92 | 1499 | if (menu.getId() == TMenu.MID_EXIT) { |
fca67db0 | 1500 | if (messageBox("Confirmation", "Exit application?", |
c6940ed9 | 1501 | TMessageBox.Type.YESNO).getResult() == TMessageBox.Result.YES) { |
fca67db0 KL |
1502 | quit = true; |
1503 | } | |
fca67db0 KL |
1504 | return true; |
1505 | } | |
1506 | ||
34a42e78 KL |
1507 | if (menu.getId() == TMenu.MID_SHELL) { |
1508 | openTerminal(0, 0, TWindow.RESIZABLE); | |
fca67db0 KL |
1509 | return true; |
1510 | } | |
1511 | ||
8e688b92 | 1512 | if (menu.getId() == TMenu.MID_TILE) { |
fca67db0 | 1513 | tileWindows(); |
fca67db0 KL |
1514 | return true; |
1515 | } | |
8e688b92 | 1516 | if (menu.getId() == TMenu.MID_CASCADE) { |
fca67db0 | 1517 | cascadeWindows(); |
fca67db0 KL |
1518 | return true; |
1519 | } | |
8e688b92 | 1520 | if (menu.getId() == TMenu.MID_CLOSE_ALL) { |
fca67db0 | 1521 | closeAllWindows(); |
fca67db0 KL |
1522 | return true; |
1523 | } | |
fca67db0 KL |
1524 | return false; |
1525 | } | |
1526 | ||
1527 | /** | |
1528 | * Method that TApplication subclasses can override to handle keystrokes. | |
1529 | * | |
1530 | * @param keypress keystroke event | |
1531 | * @return if true, this event was consumed | |
1532 | */ | |
1533 | protected boolean onKeypress(final TKeypressEvent keypress) { | |
1534 | // Default: only menu shortcuts | |
1535 | ||
1536 | // Process Alt-F, Alt-E, etc. menu shortcut keys | |
7c870d89 KL |
1537 | if (!keypress.getKey().isFnKey() |
1538 | && keypress.getKey().isAlt() | |
1539 | && !keypress.getKey().isCtrl() | |
fca67db0 KL |
1540 | && (activeMenu == null) |
1541 | ) { | |
1542 | ||
1543 | assert (subMenus.size() == 0); | |
1544 | ||
1545 | for (TMenu menu: menus) { | |
1546 | if (Character.toLowerCase(menu.getMnemonic().getShortcut()) | |
7c870d89 | 1547 | == Character.toLowerCase(keypress.getKey().getChar()) |
fca67db0 KL |
1548 | ) { |
1549 | activeMenu = menu; | |
1550 | menu.setActive(true); | |
fca67db0 KL |
1551 | return true; |
1552 | } | |
1553 | } | |
1554 | } | |
1555 | ||
1556 | return false; | |
1557 | } | |
48e27807 | 1558 | |
928811d8 | 1559 | /** |
efb7af1f KL |
1560 | * Add a menu item to the global list. If it has a keyboard accelerator, |
1561 | * that will be added the global hash. | |
928811d8 | 1562 | * |
efb7af1f | 1563 | * @param item the menu item |
928811d8 | 1564 | */ |
efb7af1f KL |
1565 | public final void addMenuItem(final TMenuItem item) { |
1566 | menuItems.add(item); | |
1567 | ||
1568 | TKeypress key = item.getKey(); | |
1569 | if (key != null) { | |
1570 | synchronized (accelerators) { | |
1571 | assert (accelerators.get(key) == null); | |
1572 | accelerators.put(key.toLowerCase(), item); | |
1573 | } | |
1574 | } | |
1575 | } | |
1576 | ||
1577 | /** | |
1578 | * Disable one menu item. | |
1579 | * | |
1580 | * @param id the menu item ID | |
1581 | */ | |
1582 | public final void disableMenuItem(final int id) { | |
1583 | for (TMenuItem item: menuItems) { | |
1584 | if (item.getId() == id) { | |
1585 | item.setEnabled(false); | |
1586 | } | |
1587 | } | |
1588 | } | |
e826b451 | 1589 | |
efb7af1f KL |
1590 | /** |
1591 | * Disable the range of menu items with ID's between lower and upper, | |
1592 | * inclusive. | |
1593 | * | |
1594 | * @param lower the lowest menu item ID | |
1595 | * @param upper the highest menu item ID | |
1596 | */ | |
1597 | public final void disableMenuItems(final int lower, final int upper) { | |
1598 | for (TMenuItem item: menuItems) { | |
1599 | if ((item.getId() >= lower) && (item.getId() <= upper)) { | |
1600 | item.setEnabled(false); | |
1601 | } | |
1602 | } | |
1603 | } | |
1604 | ||
1605 | /** | |
1606 | * Enable one menu item. | |
1607 | * | |
1608 | * @param id the menu item ID | |
1609 | */ | |
1610 | public final void enableMenuItem(final int id) { | |
1611 | for (TMenuItem item: menuItems) { | |
1612 | if (item.getId() == id) { | |
1613 | item.setEnabled(true); | |
1614 | } | |
1615 | } | |
1616 | } | |
1617 | ||
1618 | /** | |
1619 | * Enable the range of menu items with ID's between lower and upper, | |
1620 | * inclusive. | |
1621 | * | |
1622 | * @param lower the lowest menu item ID | |
1623 | * @param upper the highest menu item ID | |
1624 | */ | |
1625 | public final void enableMenuItems(final int lower, final int upper) { | |
1626 | for (TMenuItem item: menuItems) { | |
1627 | if ((item.getId() >= lower) && (item.getId() <= upper)) { | |
1628 | item.setEnabled(true); | |
1629 | } | |
e826b451 | 1630 | } |
928811d8 KL |
1631 | } |
1632 | ||
1633 | /** | |
1634 | * Recompute menu x positions based on their title length. | |
1635 | */ | |
1636 | public final void recomputeMenuX() { | |
1637 | int x = 0; | |
1638 | for (TMenu menu: menus) { | |
1639 | menu.setX(x); | |
1640 | x += menu.getTitle().length() + 2; | |
1641 | } | |
1642 | } | |
1643 | ||
1644 | /** | |
1645 | * Post an event to process and turn off the menu. | |
1646 | * | |
1647 | * @param event new event to add to the queue | |
1648 | */ | |
1649 | public final void addMenuEvent(final TInputEvent event) { | |
8e688b92 KL |
1650 | synchronized (fillEventQueue) { |
1651 | fillEventQueue.add(event); | |
1652 | } | |
928811d8 KL |
1653 | closeMenu(); |
1654 | } | |
1655 | ||
1656 | /** | |
1657 | * Add a sub-menu to the list of open sub-menus. | |
1658 | * | |
1659 | * @param menu sub-menu | |
1660 | */ | |
1661 | public final void addSubMenu(final TMenu menu) { | |
1662 | subMenus.add(menu); | |
1663 | } | |
1664 | ||
8e688b92 KL |
1665 | /** |
1666 | * Convenience function to add a top-level menu. | |
1667 | * | |
1668 | * @param title menu title | |
1669 | * @return the new menu | |
1670 | */ | |
87a17f3c | 1671 | public final TMenu addMenu(final String title) { |
8e688b92 KL |
1672 | int x = 0; |
1673 | int y = 0; | |
1674 | TMenu menu = new TMenu(this, x, y, title); | |
1675 | menus.add(menu); | |
1676 | recomputeMenuX(); | |
1677 | return menu; | |
1678 | } | |
1679 | ||
1680 | /** | |
1681 | * Convenience function to add a default "File" menu. | |
1682 | * | |
1683 | * @return the new menu | |
1684 | */ | |
1685 | public final TMenu addFileMenu() { | |
1686 | TMenu fileMenu = addMenu("&File"); | |
1687 | fileMenu.addDefaultItem(TMenu.MID_OPEN_FILE); | |
1688 | fileMenu.addSeparator(); | |
1689 | fileMenu.addDefaultItem(TMenu.MID_SHELL); | |
1690 | fileMenu.addDefaultItem(TMenu.MID_EXIT); | |
1691 | return fileMenu; | |
1692 | } | |
1693 | ||
1694 | /** | |
1695 | * Convenience function to add a default "Edit" menu. | |
1696 | * | |
1697 | * @return the new menu | |
1698 | */ | |
1699 | public final TMenu addEditMenu() { | |
1700 | TMenu editMenu = addMenu("&Edit"); | |
1701 | editMenu.addDefaultItem(TMenu.MID_CUT); | |
1702 | editMenu.addDefaultItem(TMenu.MID_COPY); | |
1703 | editMenu.addDefaultItem(TMenu.MID_PASTE); | |
1704 | editMenu.addDefaultItem(TMenu.MID_CLEAR); | |
1705 | return editMenu; | |
1706 | } | |
1707 | ||
1708 | /** | |
1709 | * Convenience function to add a default "Window" menu. | |
1710 | * | |
1711 | * @return the new menu | |
1712 | */ | |
c6940ed9 | 1713 | public final TMenu addWindowMenu() { |
8e688b92 KL |
1714 | TMenu windowMenu = addMenu("&Window"); |
1715 | windowMenu.addDefaultItem(TMenu.MID_TILE); | |
1716 | windowMenu.addDefaultItem(TMenu.MID_CASCADE); | |
1717 | windowMenu.addDefaultItem(TMenu.MID_CLOSE_ALL); | |
1718 | windowMenu.addSeparator(); | |
1719 | windowMenu.addDefaultItem(TMenu.MID_WINDOW_MOVE); | |
1720 | windowMenu.addDefaultItem(TMenu.MID_WINDOW_ZOOM); | |
1721 | windowMenu.addDefaultItem(TMenu.MID_WINDOW_NEXT); | |
1722 | windowMenu.addDefaultItem(TMenu.MID_WINDOW_PREVIOUS); | |
1723 | windowMenu.addDefaultItem(TMenu.MID_WINDOW_CLOSE); | |
1724 | return windowMenu; | |
1725 | } | |
1726 | ||
1727 | /** | |
1728 | * Close all open windows. | |
1729 | */ | |
1730 | private void closeAllWindows() { | |
1731 | // Don't do anything if we are in the menu | |
1732 | if (activeMenu != null) { | |
1733 | return; | |
1734 | } | |
bb35d919 KL |
1735 | |
1736 | synchronized (windows) { | |
1737 | for (TWindow window: windows) { | |
1738 | closeWindow(window); | |
1739 | } | |
8e688b92 KL |
1740 | } |
1741 | } | |
1742 | ||
1743 | /** | |
1744 | * Re-layout the open windows as non-overlapping tiles. This produces | |
1745 | * almost the same results as Turbo Pascal 7.0's IDE. | |
1746 | */ | |
1747 | private void tileWindows() { | |
bb35d919 KL |
1748 | synchronized (windows) { |
1749 | // Don't do anything if we are in the menu | |
1750 | if (activeMenu != null) { | |
1751 | return; | |
8e688b92 | 1752 | } |
bb35d919 KL |
1753 | int z = windows.size(); |
1754 | if (z == 0) { | |
1755 | return; | |
1756 | } | |
1757 | int a = 0; | |
1758 | int b = 0; | |
1759 | a = (int)(Math.sqrt(z)); | |
1760 | int c = 0; | |
1761 | while (c < a) { | |
1762 | b = (z - c) / a; | |
1763 | if (((a * b) + c) == z) { | |
1764 | break; | |
1765 | } | |
1766 | c++; | |
8e688b92 | 1767 | } |
bb35d919 KL |
1768 | assert (a > 0); |
1769 | assert (b > 0); | |
1770 | assert (c < a); | |
1771 | int newWidth = (getScreen().getWidth() / a); | |
1772 | int newHeight1 = ((getScreen().getHeight() - 1) / b); | |
1773 | int newHeight2 = ((getScreen().getHeight() - 1) / (b + c)); | |
1774 | ||
1775 | List<TWindow> sorted = new LinkedList<TWindow>(windows); | |
1776 | Collections.sort(sorted); | |
1777 | Collections.reverse(sorted); | |
1778 | for (int i = 0; i < sorted.size(); i++) { | |
1779 | int logicalX = i / b; | |
1780 | int logicalY = i % b; | |
1781 | if (i >= ((a - 1) * b)) { | |
1782 | logicalX = a - 1; | |
1783 | logicalY = i - ((a - 1) * b); | |
1784 | } | |
8e688b92 | 1785 | |
bb35d919 KL |
1786 | TWindow w = sorted.get(i); |
1787 | w.setX(logicalX * newWidth); | |
1788 | w.setWidth(newWidth); | |
1789 | if (i >= ((a - 1) * b)) { | |
1790 | w.setY((logicalY * newHeight2) + 1); | |
1791 | w.setHeight(newHeight2); | |
1792 | } else { | |
1793 | w.setY((logicalY * newHeight1) + 1); | |
1794 | w.setHeight(newHeight1); | |
1795 | } | |
8e688b92 KL |
1796 | } |
1797 | } | |
1798 | } | |
1799 | ||
1800 | /** | |
1801 | * Re-layout the open windows as overlapping cascaded windows. | |
1802 | */ | |
1803 | private void cascadeWindows() { | |
bb35d919 KL |
1804 | synchronized (windows) { |
1805 | // Don't do anything if we are in the menu | |
1806 | if (activeMenu != null) { | |
1807 | return; | |
8e688b92 | 1808 | } |
bb35d919 KL |
1809 | int x = 0; |
1810 | int y = 1; | |
1811 | List<TWindow> sorted = new LinkedList<TWindow>(windows); | |
1812 | Collections.sort(sorted); | |
1813 | Collections.reverse(sorted); | |
1814 | for (TWindow window: sorted) { | |
1815 | window.setX(x); | |
1816 | window.setY(y); | |
1817 | x++; | |
1818 | y++; | |
1819 | if (x > getScreen().getWidth()) { | |
1820 | x = 0; | |
1821 | } | |
1822 | if (y >= getScreen().getHeight()) { | |
1823 | y = 1; | |
1824 | } | |
8e688b92 KL |
1825 | } |
1826 | } | |
1827 | } | |
1828 | ||
d502a0e9 KL |
1829 | /** |
1830 | * Convenience function to add a timer. | |
1831 | * | |
1832 | * @param duration number of milliseconds to wait between ticks | |
1833 | * @param recurring if true, re-schedule this timer after every tick | |
1834 | * @param action function to call when button is pressed | |
c6940ed9 | 1835 | * @return the timer |
d502a0e9 KL |
1836 | */ |
1837 | public final TTimer addTimer(final long duration, final boolean recurring, | |
1838 | final TAction action) { | |
1839 | ||
1840 | TTimer timer = new TTimer(duration, recurring, action); | |
1841 | synchronized (timers) { | |
1842 | timers.add(timer); | |
1843 | } | |
1844 | return timer; | |
1845 | } | |
1846 | ||
1847 | /** | |
1848 | * Convenience function to remove a timer. | |
1849 | * | |
1850 | * @param timer timer to remove | |
1851 | */ | |
1852 | public final void removeTimer(final TTimer timer) { | |
1853 | synchronized (timers) { | |
1854 | timers.remove(timer); | |
1855 | } | |
1856 | } | |
1857 | ||
c6940ed9 KL |
1858 | /** |
1859 | * Convenience function to spawn a message box. | |
1860 | * | |
1861 | * @param title window title, will be centered along the top border | |
1862 | * @param caption message to display. Use embedded newlines to get a | |
1863 | * multi-line box. | |
1864 | * @return the new message box | |
1865 | */ | |
1866 | public final TMessageBox messageBox(final String title, | |
1867 | final String caption) { | |
1868 | ||
1869 | return new TMessageBox(this, title, caption, TMessageBox.Type.OK); | |
1870 | } | |
1871 | ||
1872 | /** | |
1873 | * Convenience function to spawn a message box. | |
1874 | * | |
1875 | * @param title window title, will be centered along the top border | |
1876 | * @param caption message to display. Use embedded newlines to get a | |
1877 | * multi-line box. | |
1878 | * @param type one of the TMessageBox.Type constants. Default is | |
1879 | * Type.OK. | |
1880 | * @return the new message box | |
1881 | */ | |
1882 | public final TMessageBox messageBox(final String title, | |
1883 | final String caption, final TMessageBox.Type type) { | |
1884 | ||
1885 | return new TMessageBox(this, title, caption, type); | |
1886 | } | |
1887 | ||
1888 | /** | |
1889 | * Convenience function to spawn an input box. | |
1890 | * | |
1891 | * @param title window title, will be centered along the top border | |
1892 | * @param caption message to display. Use embedded newlines to get a | |
1893 | * multi-line box. | |
1894 | * @return the new input box | |
1895 | */ | |
1896 | public final TInputBox inputBox(final String title, final String caption) { | |
1897 | ||
1898 | return new TInputBox(this, title, caption); | |
1899 | } | |
1900 | ||
1901 | /** | |
1902 | * Convenience function to spawn an input box. | |
1903 | * | |
1904 | * @param title window title, will be centered along the top border | |
1905 | * @param caption message to display. Use embedded newlines to get a | |
1906 | * multi-line box. | |
1907 | * @param text initial text to seed the field with | |
1908 | * @return the new input box | |
1909 | */ | |
1910 | public final TInputBox inputBox(final String title, final String caption, | |
1911 | final String text) { | |
1912 | ||
1913 | return new TInputBox(this, title, caption, text); | |
1914 | } | |
1ac2ccb1 | 1915 | |
34a42e78 KL |
1916 | /** |
1917 | * Convenience function to open a terminal window. | |
1918 | * | |
1919 | * @param x column relative to parent | |
1920 | * @param y row relative to parent | |
1921 | * @return the terminal new window | |
1922 | */ | |
1923 | public final TTerminalWindow openTerminal(final int x, final int y) { | |
1924 | return openTerminal(x, y, TWindow.RESIZABLE); | |
1925 | } | |
1926 | ||
1927 | /** | |
1928 | * Convenience function to open a terminal window. | |
1929 | * | |
1930 | * @param x column relative to parent | |
1931 | * @param y row relative to parent | |
1932 | * @param flags mask of CENTERED, MODAL, or RESIZABLE | |
1933 | * @return the terminal new window | |
1934 | */ | |
1935 | public final TTerminalWindow openTerminal(final int x, final int y, | |
1936 | final int flags) { | |
1937 | ||
1938 | return new TTerminalWindow(this, x, y, flags); | |
1939 | } | |
1940 | ||
0d47c546 KL |
1941 | /** |
1942 | * Convenience function to spawn an file open box. | |
1943 | * | |
1944 | * @param path path of selected file | |
1945 | * @return the result of the new file open box | |
329fd62e | 1946 | * @throws IOException if java.io operation throws |
0d47c546 KL |
1947 | */ |
1948 | public final String fileOpenBox(final String path) throws IOException { | |
1949 | ||
1950 | TFileOpenBox box = new TFileOpenBox(this, path, TFileOpenBox.Type.OPEN); | |
1951 | return box.getFilename(); | |
1952 | } | |
1953 | ||
1954 | /** | |
1955 | * Convenience function to spawn an file open box. | |
1956 | * | |
1957 | * @param path path of selected file | |
1958 | * @param type one of the Type constants | |
1959 | * @return the result of the new file open box | |
329fd62e | 1960 | * @throws IOException if java.io operation throws |
0d47c546 KL |
1961 | */ |
1962 | public final String fileOpenBox(final String path, | |
1963 | final TFileOpenBox.Type type) throws IOException { | |
1964 | ||
1965 | TFileOpenBox box = new TFileOpenBox(this, path, type); | |
1966 | return box.getFilename(); | |
1967 | } | |
1968 | ||
7d4115a5 | 1969 | } |