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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; |
4328bb42 KL |
37 | import java.util.LinkedList; |
38 | import java.util.List; | |
39 | ||
40 | import jexer.bits.CellAttributes; | |
41 | import jexer.bits.ColorTheme; | |
42 | import jexer.bits.GraphicsChars; | |
43 | import jexer.event.TCommandEvent; | |
44 | import jexer.event.TInputEvent; | |
45 | import jexer.event.TKeypressEvent; | |
fca67db0 | 46 | import jexer.event.TMenuEvent; |
4328bb42 KL |
47 | import jexer.event.TMouseEvent; |
48 | import jexer.event.TResizeEvent; | |
49 | import jexer.backend.Backend; | |
50 | import jexer.backend.ECMA48Backend; | |
48e27807 | 51 | import jexer.io.Screen; |
4328bb42 KL |
52 | import static jexer.TCommand.*; |
53 | import static jexer.TKeypress.*; | |
54 | ||
7d4115a5 KL |
55 | /** |
56 | * TApplication sets up a full Text User Interface application. | |
57 | */ | |
58 | public class TApplication { | |
59 | ||
60 | /** | |
4328bb42 KL |
61 | * Access to the physical screen, keyboard, and mouse. |
62 | */ | |
7b5261bc | 63 | private Backend backend; |
4328bb42 | 64 | |
48e27807 KL |
65 | /** |
66 | * Get the Screen. | |
67 | * | |
68 | * @return the Screen | |
69 | */ | |
70 | public final Screen getScreen() { | |
71 | return backend.getScreen(); | |
72 | } | |
73 | ||
4328bb42 | 74 | /** |
7b5261bc | 75 | * Actual mouse coordinate X. |
4328bb42 KL |
76 | */ |
77 | private int mouseX; | |
78 | ||
79 | /** | |
7b5261bc | 80 | * Actual mouse coordinate Y. |
4328bb42 KL |
81 | */ |
82 | private int mouseY; | |
83 | ||
84 | /** | |
7b5261bc | 85 | * Event queue that will be drained by either primary or secondary Fiber. |
4328bb42 KL |
86 | */ |
87 | private List<TInputEvent> eventQueue; | |
88 | ||
fca67db0 KL |
89 | /** |
90 | * Top-level menus in this application. | |
91 | */ | |
92 | private List<TMenu> menus; | |
93 | ||
94 | /** | |
95 | * Stack of activated sub-menus in this application. | |
96 | */ | |
97 | private List<TMenu> subMenus; | |
98 | ||
99 | /** | |
100 | * The currently acive menu. | |
101 | */ | |
102 | private TMenu activeMenu = null; | |
103 | ||
4328bb42 KL |
104 | /** |
105 | * Windows and widgets pull colors from this ColorTheme. | |
106 | */ | |
7b5261bc KL |
107 | private ColorTheme theme; |
108 | ||
109 | /** | |
110 | * Get the color theme. | |
111 | * | |
112 | * @return the theme | |
113 | */ | |
114 | public final ColorTheme getTheme() { | |
115 | return theme; | |
116 | } | |
4328bb42 | 117 | |
a06459bd KL |
118 | /** |
119 | * The top-level windows (but not menus). | |
120 | */ | |
fca67db0 | 121 | private List<TWindow> windows; |
a06459bd | 122 | |
4328bb42 KL |
123 | /** |
124 | * When true, exit the application. | |
125 | */ | |
48e27807 | 126 | private boolean quit = false; |
4328bb42 KL |
127 | |
128 | /** | |
129 | * When true, repaint the entire screen. | |
130 | */ | |
48e27807 KL |
131 | private boolean repaint = true; |
132 | ||
133 | /** | |
134 | * Request full repaint on next screen refresh. | |
135 | */ | |
fca67db0 | 136 | public final void setRepaint() { |
48e27807 KL |
137 | repaint = true; |
138 | } | |
4328bb42 KL |
139 | |
140 | /** | |
141 | * When true, just flush updates from the screen. | |
7d4115a5 | 142 | */ |
48e27807 | 143 | private boolean flush = false; |
4328bb42 KL |
144 | |
145 | /** | |
7b5261bc KL |
146 | * Y coordinate of the top edge of the desktop. For now this is a |
147 | * constant. Someday it would be nice to have a multi-line menu or | |
148 | * toolbars. | |
4328bb42 | 149 | */ |
48e27807 KL |
150 | private static final int desktopTop = 1; |
151 | ||
152 | /** | |
153 | * Get Y coordinate of the top edge of the desktop. | |
154 | * | |
155 | * @return Y coordinate of the top edge of the desktop | |
156 | */ | |
157 | public final int getDesktopTop() { | |
158 | return desktopTop; | |
159 | } | |
4328bb42 KL |
160 | |
161 | /** | |
162 | * Y coordinate of the bottom edge of the desktop. | |
163 | */ | |
48e27807 KL |
164 | private int desktopBottom; |
165 | ||
166 | /** | |
167 | * Get Y coordinate of the bottom edge of the desktop. | |
168 | * | |
169 | * @return Y coordinate of the bottom edge of the desktop | |
170 | */ | |
171 | public final int getDesktopBottom() { | |
172 | return desktopBottom; | |
173 | } | |
4328bb42 KL |
174 | |
175 | /** | |
176 | * Public constructor. | |
177 | * | |
178 | * @param input an InputStream connected to the remote user, or null for | |
179 | * System.in. If System.in is used, then on non-Windows systems it will | |
180 | * be put in raw mode; shutdown() will (blindly!) put System.in in cooked | |
181 | * mode. input is always converted to a Reader with UTF-8 encoding. | |
182 | * @param output an OutputStream connected to the remote user, or null | |
183 | * for System.out. output is always converted to a Writer with UTF-8 | |
184 | * encoding. | |
7b5261bc KL |
185 | * @throws UnsupportedEncodingException if an exception is thrown when |
186 | * creating the InputStreamReader | |
4328bb42 | 187 | */ |
7b5261bc KL |
188 | public TApplication(final InputStream input, |
189 | final OutputStream output) throws UnsupportedEncodingException { | |
4328bb42 | 190 | |
7b5261bc KL |
191 | backend = new ECMA48Backend(input, output); |
192 | theme = new ColorTheme(); | |
a06459bd | 193 | desktopBottom = getScreen().getHeight() - 1; |
7b5261bc | 194 | eventQueue = new LinkedList<TInputEvent>(); |
a06459bd | 195 | windows = new LinkedList<TWindow>(); |
fca67db0 KL |
196 | menus = new LinkedList<TMenu>(); |
197 | subMenus = new LinkedList<TMenu>(); | |
4328bb42 KL |
198 | } |
199 | ||
200 | /** | |
201 | * Invert the cell at the mouse pointer position. | |
202 | */ | |
203 | private void drawMouse() { | |
a06459bd | 204 | CellAttributes attr = getScreen().getAttrXY(mouseX, mouseY); |
7b5261bc KL |
205 | attr.setForeColor(attr.getForeColor().invert()); |
206 | attr.setBackColor(attr.getBackColor().invert()); | |
a06459bd | 207 | getScreen().putAttrXY(mouseX, mouseY, attr, false); |
7b5261bc KL |
208 | flush = true; |
209 | ||
a06459bd | 210 | if (windows.size() == 0) { |
7b5261bc KL |
211 | repaint = true; |
212 | } | |
4328bb42 KL |
213 | } |
214 | ||
215 | /** | |
216 | * Draw everything. | |
217 | */ | |
7b5261bc KL |
218 | public final void drawAll() { |
219 | if ((flush) && (!repaint)) { | |
220 | backend.flushScreen(); | |
221 | flush = false; | |
222 | return; | |
223 | } | |
224 | ||
225 | if (!repaint) { | |
226 | return; | |
227 | } | |
228 | ||
229 | // If true, the cursor is not visible | |
230 | boolean cursor = false; | |
231 | ||
232 | // Start with a clean screen | |
a06459bd | 233 | getScreen().clear(); |
7b5261bc KL |
234 | |
235 | // Draw the background | |
236 | CellAttributes background = theme.getColor("tapplication.background"); | |
a06459bd | 237 | getScreen().putAll(GraphicsChars.HATCH, background); |
7b5261bc | 238 | |
7b5261bc | 239 | // Draw each window in reverse Z order |
a06459bd KL |
240 | List<TWindow> sorted = new LinkedList<TWindow>(windows); |
241 | Collections.sort(sorted); | |
242 | Collections.reverse(sorted); | |
243 | for (TWindow window: sorted) { | |
244 | window.drawChildren(); | |
7b5261bc KL |
245 | } |
246 | ||
247 | // Draw the blank menubar line - reset the screen clipping first so | |
248 | // it won't trim it out. | |
a06459bd KL |
249 | getScreen().resetClipping(); |
250 | getScreen().hLineXY(0, 0, getScreen().getWidth(), ' ', | |
7b5261bc KL |
251 | theme.getColor("tmenu")); |
252 | // Now draw the menus. | |
253 | int x = 1; | |
fca67db0 | 254 | for (TMenu menu: menus) { |
7b5261bc KL |
255 | CellAttributes menuColor; |
256 | CellAttributes menuMnemonicColor; | |
fca67db0 | 257 | if (menu.getActive()) { |
7b5261bc KL |
258 | menuColor = theme.getColor("tmenu.highlighted"); |
259 | menuMnemonicColor = theme.getColor("tmenu.mnemonic.highlighted"); | |
260 | } else { | |
261 | menuColor = theme.getColor("tmenu"); | |
262 | menuMnemonicColor = theme.getColor("tmenu.mnemonic"); | |
263 | } | |
264 | // Draw the menu title | |
fca67db0 | 265 | getScreen().hLineXY(x, 0, menu.getTitle().length() + 2, ' ', |
7b5261bc | 266 | menuColor); |
fca67db0 | 267 | getScreen().putStrXY(x + 1, 0, menu.getTitle(), menuColor); |
7b5261bc | 268 | // Draw the highlight character |
fca67db0 KL |
269 | getScreen().putCharXY(x + 1 + menu.getMnemonic().getShortcutIdx(), |
270 | 0, menu.getMnemonic().getShortcut(), menuMnemonicColor); | |
7b5261bc | 271 | |
fca67db0 | 272 | if (menu.getActive()) { |
a06459bd | 273 | menu.drawChildren(); |
7b5261bc | 274 | // Reset the screen clipping so we can draw the next title. |
a06459bd | 275 | getScreen().resetClipping(); |
7b5261bc | 276 | } |
fca67db0 | 277 | x += menu.getTitle().length() + 2; |
7b5261bc KL |
278 | } |
279 | ||
a06459bd | 280 | for (TMenu menu: subMenus) { |
7b5261bc | 281 | // Reset the screen clipping so we can draw the next sub-menu. |
a06459bd KL |
282 | getScreen().resetClipping(); |
283 | menu.drawChildren(); | |
7b5261bc | 284 | } |
7b5261bc KL |
285 | |
286 | // Draw the mouse pointer | |
287 | drawMouse(); | |
288 | ||
7b5261bc KL |
289 | // Place the cursor if it is visible |
290 | TWidget activeWidget = null; | |
a06459bd KL |
291 | if (sorted.size() > 0) { |
292 | activeWidget = sorted.get(sorted.size() - 1).getActiveChild(); | |
293 | if (activeWidget.visibleCursor()) { | |
294 | getScreen().putCursor(true, activeWidget.getCursorAbsoluteX(), | |
7b5261bc KL |
295 | activeWidget.getCursorAbsoluteY()); |
296 | cursor = true; | |
297 | } | |
298 | } | |
299 | ||
300 | // Kill the cursor | |
fca67db0 | 301 | if (!cursor) { |
a06459bd | 302 | getScreen().hideCursor(); |
7b5261bc | 303 | } |
7b5261bc KL |
304 | |
305 | // Flush the screen contents | |
306 | backend.flushScreen(); | |
307 | ||
308 | repaint = false; | |
309 | flush = false; | |
4328bb42 KL |
310 | } |
311 | ||
312 | /** | |
7b5261bc | 313 | * Run this application until it exits. |
4328bb42 KL |
314 | */ |
315 | public final void run() { | |
7b5261bc KL |
316 | List<TInputEvent> events = new LinkedList<TInputEvent>(); |
317 | ||
318 | while (!quit) { | |
319 | // Timeout is in milliseconds, so default timeout after 1 second | |
320 | // of inactivity. | |
321 | int timeout = getSleepTime(1000); | |
322 | ||
323 | if (eventQueue.size() > 0) { | |
324 | // Do not wait if there are definitely events waiting to be | |
325 | // processed or a screen redraw to do. | |
326 | timeout = 0; | |
327 | } | |
328 | ||
329 | // Pull any pending input events | |
330 | backend.getEvents(events, timeout); | |
331 | metaHandleEvents(events); | |
332 | events.clear(); | |
333 | ||
334 | // Process timers and call doIdle()'s | |
335 | doIdle(); | |
336 | ||
337 | // Update the screen | |
338 | drawAll(); | |
339 | } | |
340 | ||
341 | /* | |
342 | ||
343 | // Shutdown the fibers | |
344 | eventQueue.length = 0; | |
345 | if (secondaryEventFiber !is null) { | |
346 | assert(secondaryEventReceiver !is null); | |
347 | secondaryEventReceiver = null; | |
348 | if (secondaryEventFiber.state == Fiber.State.HOLD) { | |
349 | // Wake up the secondary handler so that it can exit. | |
350 | secondaryEventFiber.call(); | |
351 | } | |
352 | } | |
353 | ||
354 | if (primaryEventFiber.state == Fiber.State.HOLD) { | |
355 | // Wake up the primary handler so that it can exit. | |
356 | primaryEventFiber.call(); | |
357 | } | |
358 | */ | |
359 | ||
360 | backend.shutdown(); | |
4328bb42 KL |
361 | } |
362 | ||
363 | /** | |
364 | * Peek at certain application-level events, add to eventQueue, and wake | |
365 | * up the consuming Fiber. | |
366 | * | |
367 | * @param events the input events to consume | |
368 | */ | |
7b5261bc KL |
369 | private void metaHandleEvents(final List<TInputEvent> events) { |
370 | ||
371 | for (TInputEvent event: events) { | |
372 | ||
373 | /* | |
374 | System.err.printf(String.format("metaHandleEvents event: %s\n", | |
375 | event)); System.err.flush(); | |
376 | */ | |
377 | ||
378 | if (quit) { | |
379 | // Do no more processing if the application is already trying | |
380 | // to exit. | |
381 | return; | |
382 | } | |
383 | ||
384 | // DEBUG | |
385 | if (event instanceof TKeypressEvent) { | |
386 | TKeypressEvent keypress = (TKeypressEvent) event; | |
b299e69c | 387 | if (keypress.equals(kbAltX)) { |
7b5261bc KL |
388 | quit = true; |
389 | return; | |
390 | } | |
391 | } | |
392 | // DEBUG | |
393 | ||
394 | // Special application-wide events ------------------------------- | |
395 | ||
396 | // Abort everything | |
397 | if (event instanceof TCommandEvent) { | |
398 | TCommandEvent command = (TCommandEvent) event; | |
399 | if (command.getCmd().equals(cmAbort)) { | |
400 | quit = true; | |
401 | return; | |
402 | } | |
403 | } | |
404 | ||
405 | // Screen resize | |
406 | if (event instanceof TResizeEvent) { | |
407 | TResizeEvent resize = (TResizeEvent) event; | |
a06459bd | 408 | getScreen().setDimensions(resize.getWidth(), |
7b5261bc | 409 | resize.getHeight()); |
a06459bd | 410 | desktopBottom = getScreen().getHeight() - 1; |
7b5261bc KL |
411 | repaint = true; |
412 | mouseX = 0; | |
413 | mouseY = 0; | |
414 | continue; | |
415 | } | |
416 | ||
417 | // Peek at the mouse position | |
418 | if (event instanceof TMouseEvent) { | |
419 | TMouseEvent mouse = (TMouseEvent) event; | |
d4a29741 KL |
420 | if ((mouseX != mouse.getX()) || (mouseY != mouse.getY())) { |
421 | mouseX = mouse.getX(); | |
422 | mouseY = mouse.getY(); | |
7b5261bc KL |
423 | drawMouse(); |
424 | } | |
425 | } | |
426 | ||
a06459bd | 427 | // TODO: change to two separate threads |
fca67db0 KL |
428 | primaryHandleEvent(event); |
429 | ||
7b5261bc KL |
430 | /* |
431 | ||
432 | // Put into the main queue | |
433 | addEvent(event); | |
434 | ||
435 | // Have one of the two consumer Fibers peel the events off | |
436 | // the queue. | |
437 | if (secondaryEventFiber !is null) { | |
438 | assert(secondaryEventFiber.state == Fiber.State.HOLD); | |
439 | ||
440 | // Wake up the secondary handler for these events | |
441 | secondaryEventFiber.call(); | |
442 | } else { | |
443 | assert(primaryEventFiber.state == Fiber.State.HOLD); | |
444 | ||
445 | // Wake up the primary handler for these events | |
446 | primaryEventFiber.call(); | |
447 | } | |
448 | */ | |
449 | ||
450 | } // for (TInputEvent event: events) | |
4328bb42 KL |
451 | |
452 | } | |
453 | ||
a06459bd KL |
454 | /** |
455 | * Dispatch one event to the appropriate widget or application-level | |
fca67db0 KL |
456 | * event handler. This is the primary event handler, it has the normal |
457 | * application-wide event handling. | |
a06459bd KL |
458 | * |
459 | * @param event the input event to consume | |
fca67db0 | 460 | * @see #secondaryHandleEvent(TInputEvent event) |
a06459bd | 461 | */ |
fca67db0 KL |
462 | private void primaryHandleEvent(final TInputEvent event) { |
463 | ||
464 | // System.err.printf("Handle event: %s\n", event); | |
465 | ||
466 | // Special application-wide events ----------------------------------- | |
467 | ||
468 | // Peek at the mouse position | |
469 | if (event instanceof TMouseEvent) { | |
470 | // See if we need to switch focus to another window or the menu | |
471 | checkSwitchFocus((TMouseEvent) event); | |
472 | } | |
473 | ||
474 | // Handle menu events | |
475 | if ((activeMenu != null) && !(event instanceof TCommandEvent)) { | |
476 | TMenu menu = activeMenu; | |
477 | ||
478 | if (event instanceof TMouseEvent) { | |
479 | TMouseEvent mouse = (TMouseEvent) event; | |
480 | ||
481 | while (subMenus.size() > 0) { | |
482 | TMenu subMenu = subMenus.get(subMenus.size() - 1); | |
483 | if (subMenu.mouseWouldHit(mouse)) { | |
484 | break; | |
485 | } | |
486 | if ((mouse.getType() == TMouseEvent.Type.MOUSE_MOTION) | |
487 | && (!mouse.getMouse1()) | |
488 | && (!mouse.getMouse2()) | |
489 | && (!mouse.getMouse3()) | |
490 | && (!mouse.getMouseWheelUp()) | |
491 | && (!mouse.getMouseWheelDown()) | |
492 | ) { | |
493 | break; | |
494 | } | |
495 | // We navigated away from a sub-menu, so close it | |
496 | closeSubMenu(); | |
497 | } | |
498 | ||
499 | // Convert the mouse relative x/y to menu coordinates | |
500 | assert (mouse.getX() == mouse.getAbsoluteX()); | |
501 | assert (mouse.getY() == mouse.getAbsoluteY()); | |
502 | if (subMenus.size() > 0) { | |
503 | menu = subMenus.get(subMenus.size() - 1); | |
504 | } | |
505 | mouse.setX(mouse.getX() - menu.getX()); | |
506 | mouse.setY(mouse.getY() - menu.getY()); | |
507 | } | |
508 | menu.handleEvent(event); | |
509 | return; | |
510 | } | |
a06459bd KL |
511 | |
512 | /* | |
fca67db0 KL |
513 | TODO |
514 | ||
515 | if (event instanceof TKeypressEvent) { | |
516 | TKeypressEvent keypress = (TKeypressEvent) event; | |
517 | // See if this key matches an accelerator, and if so dispatch the | |
518 | // menu event. | |
519 | TKeypress keypressLowercase = keypress.getKey().toLowerCase(); | |
520 | TMenuItem item = accelerators.get(keypressLowercase); | |
521 | if (item != null) { | |
522 | // Let the menu item dispatch | |
523 | item.dispatch(); | |
524 | return; | |
525 | } else { | |
526 | // Handle the keypress | |
527 | if (onKeypress(keypress)) { | |
528 | return; | |
529 | } | |
530 | } | |
531 | } | |
a06459bd KL |
532 | */ |
533 | ||
fca67db0 KL |
534 | if (event instanceof TCommandEvent) { |
535 | if (onCommand((TCommandEvent) event)) { | |
536 | return; | |
537 | } | |
538 | } | |
539 | ||
540 | if (event instanceof TMenuEvent) { | |
541 | if (onMenu((TMenuEvent) event)) { | |
542 | return; | |
543 | } | |
544 | } | |
545 | ||
546 | // Dispatch events to the active window ------------------------------- | |
547 | for (TWindow window: windows) { | |
548 | if (window.getActive()) { | |
a06459bd KL |
549 | if (event instanceof TMouseEvent) { |
550 | TMouseEvent mouse = (TMouseEvent) event; | |
fca67db0 KL |
551 | // Convert the mouse relative x/y to window coordinates |
552 | assert (mouse.getX() == mouse.getAbsoluteX()); | |
553 | assert (mouse.getY() == mouse.getAbsoluteY()); | |
554 | mouse.setX(mouse.getX() - window.getX()); | |
555 | mouse.setY(mouse.getY() - window.getY()); | |
556 | } | |
557 | // System.err("TApplication dispatch event: %s\n", event); | |
558 | window.handleEvent(event); | |
559 | break; | |
560 | } | |
561 | } | |
562 | } | |
563 | /** | |
564 | * Dispatch one event to the appropriate widget or application-level | |
565 | * event handler. This is the secondary event handler used by certain | |
566 | * special dialogs (currently TMessageBox and TFileOpenBox). | |
567 | * | |
568 | * @param event the input event to consume | |
569 | * @see #primaryHandleEvent(TInputEvent event) | |
570 | */ | |
571 | private void secondaryHandleEvent(final TInputEvent event) { | |
572 | // TODO | |
a06459bd KL |
573 | } |
574 | ||
4328bb42 KL |
575 | /** |
576 | * Do stuff when there is no user input. | |
577 | */ | |
578 | private void doIdle() { | |
7b5261bc | 579 | /* |
a06459bd | 580 | TODO |
7b5261bc KL |
581 | // Now run any timers that have timed out |
582 | auto now = Clock.currTime; | |
583 | TTimer [] keepTimers; | |
584 | foreach (t; timers) { | |
585 | if (t.nextTick < now) { | |
586 | t.tick(); | |
587 | if (t.recurring == true) { | |
588 | keepTimers ~= t; | |
589 | } | |
590 | } else { | |
591 | keepTimers ~= t; | |
592 | } | |
593 | } | |
594 | timers = keepTimers; | |
595 | ||
596 | // Call onIdle's | |
597 | foreach (w; windows) { | |
598 | w.onIdle(); | |
599 | } | |
600 | */ | |
4328bb42 | 601 | } |
7d4115a5 | 602 | |
4328bb42 KL |
603 | /** |
604 | * Get the amount of time I can sleep before missing a Timer tick. | |
605 | * | |
606 | * @param timeout = initial (maximum) timeout | |
607 | * @return number of milliseconds between now and the next timer event | |
608 | */ | |
7b5261bc KL |
609 | protected int getSleepTime(final int timeout) { |
610 | /* | |
611 | auto now = Clock.currTime; | |
612 | auto sleepTime = dur!("msecs")(timeout); | |
613 | foreach (t; timers) { | |
614 | if (t.nextTick < now) { | |
615 | return 0; | |
616 | } | |
617 | if ((t.nextTick > now) && | |
618 | ((t.nextTick - now) < sleepTime) | |
619 | ) { | |
620 | sleepTime = t.nextTick - now; | |
621 | } | |
622 | } | |
623 | assert(sleepTime.total!("msecs")() >= 0); | |
624 | return cast(uint)sleepTime.total!("msecs")(); | |
625 | */ | |
626 | // TODO: fix timers. Until then, come back after 250 millis. | |
627 | return 250; | |
7d4115a5 | 628 | } |
4328bb42 | 629 | |
48e27807 KL |
630 | /** |
631 | * Close window. Note that the window's destructor is NOT called by this | |
632 | * method, instead the GC is assumed to do the cleanup. | |
633 | * | |
634 | * @param window the window to remove | |
635 | */ | |
636 | public final void closeWindow(final TWindow window) { | |
fca67db0 KL |
637 | int z = window.getZ(); |
638 | window.setZ(-1); | |
639 | Collections.sort(windows); | |
640 | windows.remove(0); | |
48e27807 | 641 | TWindow activeWindow = null; |
fca67db0 KL |
642 | for (TWindow w: windows) { |
643 | if (w.getZ() > z) { | |
644 | w.setZ(w.getZ() - 1); | |
645 | if (w.getZ() == 0) { | |
646 | w.setActive(true); | |
647 | assert (activeWindow == null); | |
48e27807 KL |
648 | activeWindow = w; |
649 | } else { | |
fca67db0 | 650 | w.setActive(false); |
48e27807 KL |
651 | } |
652 | } | |
653 | } | |
654 | ||
655 | // Perform window cleanup | |
656 | window.onClose(); | |
657 | ||
658 | // Refresh screen | |
659 | repaint = true; | |
660 | ||
fca67db0 KL |
661 | /* |
662 | TODO | |
663 | ||
664 | ||
48e27807 KL |
665 | // Check if we are closing a TMessageBox or similar |
666 | if (secondaryEventReceiver !is null) { | |
667 | assert(secondaryEventFiber !is null); | |
668 | ||
669 | // Do not send events to the secondaryEventReceiver anymore, the | |
670 | // window is closed. | |
671 | secondaryEventReceiver = null; | |
672 | ||
673 | // Special case: if this is called while executing on a | |
674 | // secondaryEventFiber, call it so that widgetEventHandler() can | |
675 | // terminate. | |
676 | if (secondaryEventFiber.state == Fiber.State.HOLD) { | |
677 | secondaryEventFiber.call(); | |
678 | } | |
679 | secondaryEventFiber = null; | |
680 | ||
681 | // Unfreeze the logic in handleEvent() | |
682 | if (primaryEventFiber.state == Fiber.State.HOLD) { | |
683 | primaryEventFiber.call(); | |
684 | } | |
685 | } | |
686 | */ | |
687 | } | |
688 | ||
689 | /** | |
690 | * Switch to the next window. | |
691 | * | |
692 | * @param forward if true, then switch to the next window in the list, | |
693 | * otherwise switch to the previous window in the list | |
694 | */ | |
695 | public final void switchWindow(final boolean forward) { | |
48e27807 | 696 | // Only switch if there are multiple windows |
fca67db0 | 697 | if (windows.size() < 2) { |
48e27807 KL |
698 | return; |
699 | } | |
700 | ||
fca67db0 KL |
701 | // Swap z/active between active window and the next in the list |
702 | int activeWindowI = -1; | |
703 | for (int i = 0; i < windows.size(); i++) { | |
704 | if (windows.get(i).getActive()) { | |
48e27807 KL |
705 | activeWindowI = i; |
706 | break; | |
707 | } | |
708 | } | |
fca67db0 | 709 | assert (activeWindowI >= 0); |
48e27807 KL |
710 | |
711 | // Do not switch if a window is modal | |
fca67db0 | 712 | if (windows.get(activeWindowI).isModal()) { |
48e27807 KL |
713 | return; |
714 | } | |
715 | ||
fca67db0 | 716 | int nextWindowI; |
48e27807 | 717 | if (forward) { |
fca67db0 | 718 | nextWindowI = (activeWindowI + 1) % windows.size(); |
48e27807 KL |
719 | } else { |
720 | if (activeWindowI == 0) { | |
fca67db0 | 721 | nextWindowI = windows.size() - 1; |
48e27807 KL |
722 | } else { |
723 | nextWindowI = activeWindowI - 1; | |
724 | } | |
725 | } | |
fca67db0 KL |
726 | windows.get(activeWindowI).setActive(false); |
727 | windows.get(activeWindowI).setZ(windows.get(nextWindowI).getZ()); | |
728 | windows.get(nextWindowI).setZ(0); | |
729 | windows.get(nextWindowI).setActive(true); | |
48e27807 KL |
730 | |
731 | // Refresh | |
732 | repaint = true; | |
48e27807 KL |
733 | } |
734 | ||
735 | /** | |
736 | * Add a window to my window list and make it active. | |
737 | * | |
738 | * @param window new window to add | |
739 | */ | |
740 | public final void addWindow(final TWindow window) { | |
48e27807 | 741 | // Do not allow a modal window to spawn a non-modal window |
a06459bd KL |
742 | if ((windows.size() > 0) && (windows.get(0).isModal())) { |
743 | assert (window.isModal()); | |
48e27807 | 744 | } |
a06459bd | 745 | for (TWindow w: windows) { |
fca67db0 | 746 | w.setActive(false); |
a06459bd | 747 | w.setZ(w.getZ() + 1); |
48e27807 | 748 | } |
a06459bd | 749 | windows.add(window); |
fca67db0 | 750 | window.setActive(true); |
a06459bd | 751 | window.setZ(0); |
48e27807 KL |
752 | } |
753 | ||
fca67db0 KL |
754 | /** |
755 | * Check if there is a system-modal window on top. | |
756 | * | |
757 | * @return true if the active window is modal | |
758 | */ | |
759 | private boolean modalWindowActive() { | |
760 | if (windows.size() == 0) { | |
761 | return false; | |
762 | } | |
763 | return windows.get(windows.size() - 1).isModal(); | |
764 | } | |
765 | ||
766 | /** | |
767 | * Check if a mouse event would hit either the active menu or any open | |
768 | * sub-menus. | |
769 | * | |
770 | * @param mouse mouse event | |
771 | * @return true if the mouse would hit the active menu or an open | |
772 | * sub-menu | |
773 | */ | |
774 | private boolean mouseOnMenu(final TMouseEvent mouse) { | |
775 | assert (activeMenu != null); | |
776 | List<TMenu> menus = new LinkedList<TMenu>(subMenus); | |
777 | Collections.reverse(menus); | |
778 | for (TMenu menu: menus) { | |
779 | if (menu.mouseWouldHit(mouse)) { | |
780 | return true; | |
781 | } | |
782 | } | |
783 | return activeMenu.mouseWouldHit(mouse); | |
784 | } | |
785 | ||
786 | /** | |
787 | * See if we need to switch window or activate the menu based on | |
788 | * a mouse click. | |
789 | * | |
790 | * @param mouse mouse event | |
791 | */ | |
792 | private void checkSwitchFocus(final TMouseEvent mouse) { | |
793 | ||
794 | if ((mouse.getType() == TMouseEvent.Type.MOUSE_DOWN) | |
795 | && (activeMenu != null) | |
796 | && (mouse.getAbsoluteY() != 0) | |
797 | && (!mouseOnMenu(mouse)) | |
798 | ) { | |
799 | // They clicked outside the active menu, turn it off | |
800 | activeMenu.setActive(false); | |
801 | activeMenu = null; | |
802 | for (TMenu menu: subMenus) { | |
803 | menu.setActive(false); | |
804 | } | |
805 | subMenus.clear(); | |
806 | // Continue checks | |
807 | } | |
808 | ||
809 | // See if they hit the menu bar | |
810 | if ((mouse.getType() == TMouseEvent.Type.MOUSE_DOWN) | |
811 | && (mouse.getMouse1()) | |
812 | && (!modalWindowActive()) | |
813 | && (mouse.getAbsoluteY() == 0) | |
814 | ) { | |
815 | ||
816 | for (TMenu menu: subMenus) { | |
817 | menu.setActive(false); | |
818 | } | |
819 | subMenus.clear(); | |
820 | ||
821 | // They selected the menu, go activate it | |
822 | for (TMenu menu: menus) { | |
823 | if ((mouse.getAbsoluteX() >= menu.getX()) | |
824 | && (mouse.getAbsoluteX() < menu.getX() | |
825 | + menu.getTitle().length() + 2) | |
826 | ) { | |
827 | menu.setActive(true); | |
828 | activeMenu = menu; | |
829 | } else { | |
830 | menu.setActive(false); | |
831 | } | |
832 | } | |
833 | repaint = true; | |
834 | return; | |
835 | } | |
836 | ||
837 | // See if they hit the menu bar | |
838 | if ((mouse.getType() == TMouseEvent.Type.MOUSE_MOTION) | |
839 | && (mouse.getMouse1()) | |
840 | && (activeMenu != null) | |
841 | && (mouse.getAbsoluteY() == 0) | |
842 | ) { | |
843 | ||
844 | TMenu oldMenu = activeMenu; | |
845 | for (TMenu menu: subMenus) { | |
846 | menu.setActive(false); | |
847 | } | |
848 | subMenus.clear(); | |
849 | ||
850 | // See if we should switch menus | |
851 | for (TMenu menu: menus) { | |
852 | if ((mouse.getAbsoluteX() >= menu.getX()) | |
853 | && (mouse.getAbsoluteX() < menu.getX() | |
854 | + menu.getTitle().length() + 2) | |
855 | ) { | |
856 | menu.setActive(true); | |
857 | activeMenu = menu; | |
858 | } | |
859 | } | |
860 | if (oldMenu != activeMenu) { | |
861 | // They switched menus | |
862 | oldMenu.setActive(false); | |
863 | } | |
864 | repaint = true; | |
865 | return; | |
866 | } | |
867 | ||
868 | // Only switch if there are multiple windows | |
869 | if (windows.size() < 2) { | |
870 | return; | |
871 | } | |
872 | ||
873 | // Switch on the upclick | |
874 | if (mouse.getType() != TMouseEvent.Type.MOUSE_UP) { | |
875 | return; | |
876 | } | |
877 | ||
878 | Collections.sort(windows); | |
879 | if (windows.get(0).isModal()) { | |
880 | // Modal windows don't switch | |
881 | return; | |
882 | } | |
883 | ||
884 | for (TWindow window: windows) { | |
885 | assert (!window.isModal()); | |
886 | if (window.mouseWouldHit(mouse)) { | |
887 | if (window == windows.get(0)) { | |
888 | // Clicked on the same window, nothing to do | |
889 | return; | |
890 | } | |
891 | ||
892 | // We will be switching to another window | |
893 | assert (windows.get(0).getActive()); | |
894 | assert (!window.getActive()); | |
895 | windows.get(0).setActive(false); | |
896 | windows.get(0).setZ(window.getZ()); | |
897 | window.setZ(0); | |
898 | window.setActive(true); | |
899 | repaint = true; | |
900 | return; | |
901 | } | |
902 | } | |
903 | ||
904 | // Clicked on the background, nothing to do | |
905 | return; | |
906 | } | |
907 | ||
908 | /** | |
909 | * Turn off the menu. | |
910 | */ | |
911 | private void closeMenu() { | |
912 | if (activeMenu != null) { | |
913 | activeMenu.setActive(false); | |
914 | activeMenu = null; | |
915 | for (TMenu menu: subMenus) { | |
916 | menu.setActive(false); | |
917 | } | |
918 | subMenus.clear(); | |
919 | } | |
920 | repaint = true; | |
921 | } | |
922 | ||
923 | /** | |
924 | * Turn off a sub-menu. | |
925 | */ | |
926 | private void closeSubMenu() { | |
927 | assert (activeMenu != null); | |
928 | TMenu item = subMenus.get(subMenus.size() - 1); | |
929 | assert (item != null); | |
930 | item.setActive(false); | |
931 | subMenus.remove(subMenus.size() - 1); | |
932 | repaint = true; | |
933 | } | |
934 | ||
935 | /** | |
936 | * Switch to the next menu. | |
937 | * | |
938 | * @param forward if true, then switch to the next menu in the list, | |
939 | * otherwise switch to the previous menu in the list | |
940 | */ | |
941 | private void switchMenu(final boolean forward) { | |
942 | assert (activeMenu != null); | |
943 | ||
944 | for (TMenu menu: subMenus) { | |
945 | menu.setActive(false); | |
946 | } | |
947 | subMenus.clear(); | |
948 | ||
949 | for (int i = 0; i < menus.size(); i++) { | |
950 | if (activeMenu == menus.get(i)) { | |
951 | if (forward) { | |
952 | if (i < menus.size() - 1) { | |
953 | i++; | |
954 | } | |
955 | } else { | |
956 | if (i > 0) { | |
957 | i--; | |
958 | } | |
959 | } | |
960 | activeMenu.setActive(false); | |
961 | activeMenu = menus.get(i); | |
962 | activeMenu.setActive(true); | |
963 | repaint = true; | |
964 | return; | |
965 | } | |
966 | } | |
967 | } | |
968 | ||
969 | /** | |
970 | * Method that TApplication subclasses can override to handle menu or | |
971 | * posted command events. | |
972 | * | |
973 | * @param command command event | |
974 | * @return if true, this event was consumed | |
975 | */ | |
976 | protected boolean onCommand(final TCommandEvent command) { | |
977 | /* | |
978 | TODO | |
979 | // Default: handle cmExit | |
980 | if (command.equals(cmExit)) { | |
981 | if (messageBox("Confirmation", "Exit application?", | |
982 | TMessageBox.Type.YESNO).result == TMessageBox.Result.YES) { | |
983 | quit = true; | |
984 | } | |
985 | repaint = true; | |
986 | return true; | |
987 | } | |
988 | ||
989 | if (command.equals(cmShell)) { | |
990 | openTerminal(0, 0, TWindow.Flag.RESIZABLE); | |
991 | repaint = true; | |
992 | return true; | |
993 | } | |
994 | ||
995 | if (command.equals(cmTile)) { | |
996 | tileWindows(); | |
997 | repaint = true; | |
998 | return true; | |
999 | } | |
1000 | if (command.equals(cmCascade)) { | |
1001 | cascadeWindows(); | |
1002 | repaint = true; | |
1003 | return true; | |
1004 | } | |
1005 | if (command.equals(cmCloseAll)) { | |
1006 | closeAllWindows(); | |
1007 | repaint = true; | |
1008 | return true; | |
1009 | } | |
1010 | */ | |
1011 | return false; | |
1012 | } | |
1013 | ||
1014 | /** | |
1015 | * Method that TApplication subclasses can override to handle menu | |
1016 | * events. | |
1017 | * | |
1018 | * @param menu menu event | |
1019 | * @return if true, this event was consumed | |
1020 | */ | |
1021 | protected boolean onMenu(final TMenuEvent menu) { | |
1022 | ||
1023 | /* | |
1024 | TODO | |
1025 | // Default: handle MID_EXIT | |
1026 | if (menu.id == TMenu.MID_EXIT) { | |
1027 | if (messageBox("Confirmation", "Exit application?", | |
1028 | TMessageBox.Type.YESNO).result == TMessageBox.Result.YES) { | |
1029 | quit = true; | |
1030 | } | |
1031 | // System.err.printf("onMenu MID_EXIT result: quit = %s\n", quit); | |
1032 | repaint = true; | |
1033 | return true; | |
1034 | } | |
1035 | ||
1036 | if (menu.id == TMenu.MID_SHELL) { | |
1037 | openTerminal(0, 0, TWindow.Flag.RESIZABLE); | |
1038 | repaint = true; | |
1039 | return true; | |
1040 | } | |
1041 | ||
1042 | if (menu.id == TMenu.MID_TILE) { | |
1043 | tileWindows(); | |
1044 | repaint = true; | |
1045 | return true; | |
1046 | } | |
1047 | if (menu.id == TMenu.MID_CASCADE) { | |
1048 | cascadeWindows(); | |
1049 | repaint = true; | |
1050 | return true; | |
1051 | } | |
1052 | if (menu.id == TMenu.MID_CLOSE_ALL) { | |
1053 | closeAllWindows(); | |
1054 | repaint = true; | |
1055 | return true; | |
1056 | } | |
1057 | */ | |
1058 | return false; | |
1059 | } | |
1060 | ||
1061 | /** | |
1062 | * Method that TApplication subclasses can override to handle keystrokes. | |
1063 | * | |
1064 | * @param keypress keystroke event | |
1065 | * @return if true, this event was consumed | |
1066 | */ | |
1067 | protected boolean onKeypress(final TKeypressEvent keypress) { | |
1068 | // Default: only menu shortcuts | |
1069 | ||
1070 | // Process Alt-F, Alt-E, etc. menu shortcut keys | |
1071 | if (!keypress.getKey().getIsKey() | |
1072 | && keypress.getKey().getAlt() | |
1073 | && !keypress.getKey().getCtrl() | |
1074 | && (activeMenu == null) | |
1075 | ) { | |
1076 | ||
1077 | assert (subMenus.size() == 0); | |
1078 | ||
1079 | for (TMenu menu: menus) { | |
1080 | if (Character.toLowerCase(menu.getMnemonic().getShortcut()) | |
1081 | == Character.toLowerCase(keypress.getKey().getCh()) | |
1082 | ) { | |
1083 | activeMenu = menu; | |
1084 | menu.setActive(true); | |
1085 | repaint = true; | |
1086 | return true; | |
1087 | } | |
1088 | } | |
1089 | } | |
1090 | ||
1091 | return false; | |
1092 | } | |
48e27807 | 1093 | |
7d4115a5 | 1094 | } |