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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; |
928811d8 KL |
52 | import jexer.menu.TMenu; |
53 | import jexer.menu.TMenuItem; | |
4328bb42 KL |
54 | import static jexer.TCommand.*; |
55 | import static jexer.TKeypress.*; | |
56 | ||
7d4115a5 KL |
57 | /** |
58 | * TApplication sets up a full Text User Interface application. | |
59 | */ | |
60 | public class TApplication { | |
61 | ||
62 | /** | |
4328bb42 KL |
63 | * Access to the physical screen, keyboard, and mouse. |
64 | */ | |
7b5261bc | 65 | private Backend backend; |
4328bb42 | 66 | |
48e27807 KL |
67 | /** |
68 | * Get the Screen. | |
69 | * | |
70 | * @return the Screen | |
71 | */ | |
72 | public final Screen getScreen() { | |
73 | return backend.getScreen(); | |
74 | } | |
75 | ||
4328bb42 | 76 | /** |
7b5261bc | 77 | * Actual mouse coordinate X. |
4328bb42 KL |
78 | */ |
79 | private int mouseX; | |
80 | ||
81 | /** | |
7b5261bc | 82 | * Actual mouse coordinate Y. |
4328bb42 KL |
83 | */ |
84 | private int mouseY; | |
85 | ||
86 | /** | |
7b5261bc | 87 | * Event queue that will be drained by either primary or secondary Fiber. |
4328bb42 KL |
88 | */ |
89 | private List<TInputEvent> eventQueue; | |
90 | ||
fca67db0 KL |
91 | /** |
92 | * Top-level menus in this application. | |
93 | */ | |
94 | private List<TMenu> menus; | |
95 | ||
96 | /** | |
97 | * Stack of activated sub-menus in this application. | |
98 | */ | |
99 | private List<TMenu> subMenus; | |
100 | ||
101 | /** | |
102 | * The currently acive menu. | |
103 | */ | |
104 | private TMenu activeMenu = null; | |
105 | ||
4328bb42 KL |
106 | /** |
107 | * Windows and widgets pull colors from this ColorTheme. | |
108 | */ | |
7b5261bc KL |
109 | private ColorTheme theme; |
110 | ||
111 | /** | |
112 | * Get the color theme. | |
113 | * | |
114 | * @return the theme | |
115 | */ | |
116 | public final ColorTheme getTheme() { | |
117 | return theme; | |
118 | } | |
4328bb42 | 119 | |
a06459bd KL |
120 | /** |
121 | * The top-level windows (but not menus). | |
122 | */ | |
fca67db0 | 123 | private List<TWindow> windows; |
a06459bd | 124 | |
4328bb42 KL |
125 | /** |
126 | * When true, exit the application. | |
127 | */ | |
48e27807 | 128 | private boolean quit = false; |
4328bb42 KL |
129 | |
130 | /** | |
131 | * When true, repaint the entire screen. | |
132 | */ | |
48e27807 KL |
133 | private boolean repaint = true; |
134 | ||
135 | /** | |
136 | * Request full repaint on next screen refresh. | |
137 | */ | |
fca67db0 | 138 | public final void setRepaint() { |
48e27807 KL |
139 | repaint = true; |
140 | } | |
4328bb42 KL |
141 | |
142 | /** | |
143 | * When true, just flush updates from the screen. | |
7d4115a5 | 144 | */ |
48e27807 | 145 | private boolean flush = false; |
4328bb42 KL |
146 | |
147 | /** | |
7b5261bc KL |
148 | * Y coordinate of the top edge of the desktop. For now this is a |
149 | * constant. Someday it would be nice to have a multi-line menu or | |
150 | * toolbars. | |
4328bb42 | 151 | */ |
48e27807 KL |
152 | private static final int desktopTop = 1; |
153 | ||
154 | /** | |
155 | * Get Y coordinate of the top edge of the desktop. | |
156 | * | |
157 | * @return Y coordinate of the top edge of the desktop | |
158 | */ | |
159 | public final int getDesktopTop() { | |
160 | return desktopTop; | |
161 | } | |
4328bb42 KL |
162 | |
163 | /** | |
164 | * Y coordinate of the bottom edge of the desktop. | |
165 | */ | |
48e27807 KL |
166 | private int desktopBottom; |
167 | ||
168 | /** | |
169 | * Get Y coordinate of the bottom edge of the desktop. | |
170 | * | |
171 | * @return Y coordinate of the bottom edge of the desktop | |
172 | */ | |
173 | public final int getDesktopBottom() { | |
174 | return desktopBottom; | |
175 | } | |
4328bb42 KL |
176 | |
177 | /** | |
178 | * Public constructor. | |
179 | * | |
180 | * @param input an InputStream connected to the remote user, or null for | |
181 | * System.in. If System.in is used, then on non-Windows systems it will | |
182 | * be put in raw mode; shutdown() will (blindly!) put System.in in cooked | |
183 | * mode. input is always converted to a Reader with UTF-8 encoding. | |
184 | * @param output an OutputStream connected to the remote user, or null | |
185 | * for System.out. output is always converted to a Writer with UTF-8 | |
186 | * encoding. | |
7b5261bc KL |
187 | * @throws UnsupportedEncodingException if an exception is thrown when |
188 | * creating the InputStreamReader | |
4328bb42 | 189 | */ |
7b5261bc KL |
190 | public TApplication(final InputStream input, |
191 | final OutputStream output) throws UnsupportedEncodingException { | |
4328bb42 | 192 | |
7b5261bc KL |
193 | backend = new ECMA48Backend(input, output); |
194 | theme = new ColorTheme(); | |
a06459bd | 195 | desktopBottom = getScreen().getHeight() - 1; |
7b5261bc | 196 | eventQueue = new LinkedList<TInputEvent>(); |
a06459bd | 197 | windows = new LinkedList<TWindow>(); |
fca67db0 KL |
198 | menus = new LinkedList<TMenu>(); |
199 | subMenus = new LinkedList<TMenu>(); | |
4328bb42 KL |
200 | } |
201 | ||
202 | /** | |
203 | * Invert the cell at the mouse pointer position. | |
204 | */ | |
205 | private void drawMouse() { | |
a06459bd | 206 | CellAttributes attr = getScreen().getAttrXY(mouseX, mouseY); |
7b5261bc KL |
207 | attr.setForeColor(attr.getForeColor().invert()); |
208 | attr.setBackColor(attr.getBackColor().invert()); | |
a06459bd | 209 | getScreen().putAttrXY(mouseX, mouseY, attr, false); |
7b5261bc KL |
210 | flush = true; |
211 | ||
a06459bd | 212 | if (windows.size() == 0) { |
7b5261bc KL |
213 | repaint = true; |
214 | } | |
4328bb42 KL |
215 | } |
216 | ||
217 | /** | |
218 | * Draw everything. | |
219 | */ | |
7b5261bc KL |
220 | public final void drawAll() { |
221 | if ((flush) && (!repaint)) { | |
222 | backend.flushScreen(); | |
223 | flush = false; | |
224 | return; | |
225 | } | |
226 | ||
227 | if (!repaint) { | |
228 | return; | |
229 | } | |
230 | ||
231 | // If true, the cursor is not visible | |
232 | boolean cursor = false; | |
233 | ||
234 | // Start with a clean screen | |
a06459bd | 235 | getScreen().clear(); |
7b5261bc KL |
236 | |
237 | // Draw the background | |
238 | CellAttributes background = theme.getColor("tapplication.background"); | |
a06459bd | 239 | getScreen().putAll(GraphicsChars.HATCH, background); |
7b5261bc | 240 | |
7b5261bc | 241 | // Draw each window in reverse Z order |
a06459bd KL |
242 | List<TWindow> sorted = new LinkedList<TWindow>(windows); |
243 | Collections.sort(sorted); | |
244 | Collections.reverse(sorted); | |
245 | for (TWindow window: sorted) { | |
246 | window.drawChildren(); | |
7b5261bc KL |
247 | } |
248 | ||
249 | // Draw the blank menubar line - reset the screen clipping first so | |
250 | // it won't trim it out. | |
a06459bd KL |
251 | getScreen().resetClipping(); |
252 | getScreen().hLineXY(0, 0, getScreen().getWidth(), ' ', | |
7b5261bc KL |
253 | theme.getColor("tmenu")); |
254 | // Now draw the menus. | |
255 | int x = 1; | |
fca67db0 | 256 | for (TMenu menu: menus) { |
7b5261bc KL |
257 | CellAttributes menuColor; |
258 | CellAttributes menuMnemonicColor; | |
fca67db0 | 259 | if (menu.getActive()) { |
7b5261bc KL |
260 | menuColor = theme.getColor("tmenu.highlighted"); |
261 | menuMnemonicColor = theme.getColor("tmenu.mnemonic.highlighted"); | |
262 | } else { | |
263 | menuColor = theme.getColor("tmenu"); | |
264 | menuMnemonicColor = theme.getColor("tmenu.mnemonic"); | |
265 | } | |
266 | // Draw the menu title | |
fca67db0 | 267 | getScreen().hLineXY(x, 0, menu.getTitle().length() + 2, ' ', |
7b5261bc | 268 | menuColor); |
fca67db0 | 269 | getScreen().putStrXY(x + 1, 0, menu.getTitle(), menuColor); |
7b5261bc | 270 | // Draw the highlight character |
fca67db0 KL |
271 | getScreen().putCharXY(x + 1 + menu.getMnemonic().getShortcutIdx(), |
272 | 0, menu.getMnemonic().getShortcut(), menuMnemonicColor); | |
7b5261bc | 273 | |
fca67db0 | 274 | if (menu.getActive()) { |
a06459bd | 275 | menu.drawChildren(); |
7b5261bc | 276 | // Reset the screen clipping so we can draw the next title. |
a06459bd | 277 | getScreen().resetClipping(); |
7b5261bc | 278 | } |
fca67db0 | 279 | x += menu.getTitle().length() + 2; |
7b5261bc KL |
280 | } |
281 | ||
a06459bd | 282 | for (TMenu menu: subMenus) { |
7b5261bc | 283 | // Reset the screen clipping so we can draw the next sub-menu. |
a06459bd KL |
284 | getScreen().resetClipping(); |
285 | menu.drawChildren(); | |
7b5261bc | 286 | } |
7b5261bc KL |
287 | |
288 | // Draw the mouse pointer | |
289 | drawMouse(); | |
290 | ||
7b5261bc KL |
291 | // Place the cursor if it is visible |
292 | TWidget activeWidget = null; | |
a06459bd KL |
293 | if (sorted.size() > 0) { |
294 | activeWidget = sorted.get(sorted.size() - 1).getActiveChild(); | |
295 | if (activeWidget.visibleCursor()) { | |
296 | getScreen().putCursor(true, activeWidget.getCursorAbsoluteX(), | |
7b5261bc KL |
297 | activeWidget.getCursorAbsoluteY()); |
298 | cursor = true; | |
299 | } | |
300 | } | |
301 | ||
302 | // Kill the cursor | |
fca67db0 | 303 | if (!cursor) { |
a06459bd | 304 | getScreen().hideCursor(); |
7b5261bc | 305 | } |
7b5261bc KL |
306 | |
307 | // Flush the screen contents | |
308 | backend.flushScreen(); | |
309 | ||
310 | repaint = false; | |
311 | flush = false; | |
4328bb42 KL |
312 | } |
313 | ||
314 | /** | |
7b5261bc | 315 | * Run this application until it exits. |
4328bb42 KL |
316 | */ |
317 | public final void run() { | |
7b5261bc KL |
318 | List<TInputEvent> events = new LinkedList<TInputEvent>(); |
319 | ||
320 | while (!quit) { | |
321 | // Timeout is in milliseconds, so default timeout after 1 second | |
322 | // of inactivity. | |
323 | int timeout = getSleepTime(1000); | |
324 | ||
325 | if (eventQueue.size() > 0) { | |
326 | // Do not wait if there are definitely events waiting to be | |
327 | // processed or a screen redraw to do. | |
328 | timeout = 0; | |
329 | } | |
330 | ||
331 | // Pull any pending input events | |
332 | backend.getEvents(events, timeout); | |
333 | metaHandleEvents(events); | |
334 | events.clear(); | |
335 | ||
336 | // Process timers and call doIdle()'s | |
337 | doIdle(); | |
338 | ||
339 | // Update the screen | |
340 | drawAll(); | |
341 | } | |
342 | ||
343 | /* | |
344 | ||
345 | // Shutdown the fibers | |
346 | eventQueue.length = 0; | |
347 | if (secondaryEventFiber !is null) { | |
348 | assert(secondaryEventReceiver !is null); | |
349 | secondaryEventReceiver = null; | |
350 | if (secondaryEventFiber.state == Fiber.State.HOLD) { | |
351 | // Wake up the secondary handler so that it can exit. | |
352 | secondaryEventFiber.call(); | |
353 | } | |
354 | } | |
355 | ||
356 | if (primaryEventFiber.state == Fiber.State.HOLD) { | |
357 | // Wake up the primary handler so that it can exit. | |
358 | primaryEventFiber.call(); | |
359 | } | |
360 | */ | |
361 | ||
362 | backend.shutdown(); | |
4328bb42 KL |
363 | } |
364 | ||
365 | /** | |
366 | * Peek at certain application-level events, add to eventQueue, and wake | |
367 | * up the consuming Fiber. | |
368 | * | |
369 | * @param events the input events to consume | |
370 | */ | |
7b5261bc KL |
371 | private void metaHandleEvents(final List<TInputEvent> events) { |
372 | ||
373 | for (TInputEvent event: events) { | |
374 | ||
375 | /* | |
376 | System.err.printf(String.format("metaHandleEvents event: %s\n", | |
377 | event)); System.err.flush(); | |
378 | */ | |
379 | ||
380 | if (quit) { | |
381 | // Do no more processing if the application is already trying | |
382 | // to exit. | |
383 | return; | |
384 | } | |
385 | ||
386 | // DEBUG | |
387 | if (event instanceof TKeypressEvent) { | |
388 | TKeypressEvent keypress = (TKeypressEvent) event; | |
b299e69c | 389 | if (keypress.equals(kbAltX)) { |
7b5261bc KL |
390 | quit = true; |
391 | return; | |
392 | } | |
393 | } | |
394 | // DEBUG | |
395 | ||
396 | // Special application-wide events ------------------------------- | |
397 | ||
398 | // Abort everything | |
399 | if (event instanceof TCommandEvent) { | |
400 | TCommandEvent command = (TCommandEvent) event; | |
401 | if (command.getCmd().equals(cmAbort)) { | |
402 | quit = true; | |
403 | return; | |
404 | } | |
405 | } | |
406 | ||
407 | // Screen resize | |
408 | if (event instanceof TResizeEvent) { | |
409 | TResizeEvent resize = (TResizeEvent) event; | |
a06459bd | 410 | getScreen().setDimensions(resize.getWidth(), |
7b5261bc | 411 | resize.getHeight()); |
a06459bd | 412 | desktopBottom = getScreen().getHeight() - 1; |
7b5261bc KL |
413 | repaint = true; |
414 | mouseX = 0; | |
415 | mouseY = 0; | |
416 | continue; | |
417 | } | |
418 | ||
419 | // Peek at the mouse position | |
420 | if (event instanceof TMouseEvent) { | |
421 | TMouseEvent mouse = (TMouseEvent) event; | |
d4a29741 KL |
422 | if ((mouseX != mouse.getX()) || (mouseY != mouse.getY())) { |
423 | mouseX = mouse.getX(); | |
424 | mouseY = mouse.getY(); | |
7b5261bc KL |
425 | drawMouse(); |
426 | } | |
427 | } | |
428 | ||
a06459bd | 429 | // TODO: change to two separate threads |
fca67db0 KL |
430 | primaryHandleEvent(event); |
431 | ||
7b5261bc KL |
432 | /* |
433 | ||
434 | // Put into the main queue | |
435 | addEvent(event); | |
436 | ||
437 | // Have one of the two consumer Fibers peel the events off | |
438 | // the queue. | |
439 | if (secondaryEventFiber !is null) { | |
440 | assert(secondaryEventFiber.state == Fiber.State.HOLD); | |
441 | ||
442 | // Wake up the secondary handler for these events | |
443 | secondaryEventFiber.call(); | |
444 | } else { | |
445 | assert(primaryEventFiber.state == Fiber.State.HOLD); | |
446 | ||
447 | // Wake up the primary handler for these events | |
448 | primaryEventFiber.call(); | |
449 | } | |
450 | */ | |
451 | ||
452 | } // for (TInputEvent event: events) | |
4328bb42 KL |
453 | |
454 | } | |
455 | ||
a06459bd KL |
456 | /** |
457 | * Dispatch one event to the appropriate widget or application-level | |
fca67db0 KL |
458 | * event handler. This is the primary event handler, it has the normal |
459 | * application-wide event handling. | |
a06459bd KL |
460 | * |
461 | * @param event the input event to consume | |
fca67db0 | 462 | * @see #secondaryHandleEvent(TInputEvent event) |
a06459bd | 463 | */ |
fca67db0 KL |
464 | private void primaryHandleEvent(final TInputEvent event) { |
465 | ||
466 | // System.err.printf("Handle event: %s\n", event); | |
467 | ||
468 | // Special application-wide events ----------------------------------- | |
469 | ||
470 | // Peek at the mouse position | |
471 | if (event instanceof TMouseEvent) { | |
472 | // See if we need to switch focus to another window or the menu | |
473 | checkSwitchFocus((TMouseEvent) event); | |
474 | } | |
475 | ||
476 | // Handle menu events | |
477 | if ((activeMenu != null) && !(event instanceof TCommandEvent)) { | |
478 | TMenu menu = activeMenu; | |
479 | ||
480 | if (event instanceof TMouseEvent) { | |
481 | TMouseEvent mouse = (TMouseEvent) event; | |
482 | ||
483 | while (subMenus.size() > 0) { | |
484 | TMenu subMenu = subMenus.get(subMenus.size() - 1); | |
485 | if (subMenu.mouseWouldHit(mouse)) { | |
486 | break; | |
487 | } | |
488 | if ((mouse.getType() == TMouseEvent.Type.MOUSE_MOTION) | |
489 | && (!mouse.getMouse1()) | |
490 | && (!mouse.getMouse2()) | |
491 | && (!mouse.getMouse3()) | |
492 | && (!mouse.getMouseWheelUp()) | |
493 | && (!mouse.getMouseWheelDown()) | |
494 | ) { | |
495 | break; | |
496 | } | |
497 | // We navigated away from a sub-menu, so close it | |
498 | closeSubMenu(); | |
499 | } | |
500 | ||
501 | // Convert the mouse relative x/y to menu coordinates | |
502 | assert (mouse.getX() == mouse.getAbsoluteX()); | |
503 | assert (mouse.getY() == mouse.getAbsoluteY()); | |
504 | if (subMenus.size() > 0) { | |
505 | menu = subMenus.get(subMenus.size() - 1); | |
506 | } | |
507 | mouse.setX(mouse.getX() - menu.getX()); | |
508 | mouse.setY(mouse.getY() - menu.getY()); | |
509 | } | |
510 | menu.handleEvent(event); | |
511 | return; | |
512 | } | |
a06459bd KL |
513 | |
514 | /* | |
fca67db0 KL |
515 | TODO |
516 | ||
517 | if (event instanceof TKeypressEvent) { | |
518 | TKeypressEvent keypress = (TKeypressEvent) event; | |
519 | // See if this key matches an accelerator, and if so dispatch the | |
520 | // menu event. | |
521 | TKeypress keypressLowercase = keypress.getKey().toLowerCase(); | |
522 | TMenuItem item = accelerators.get(keypressLowercase); | |
523 | if (item != null) { | |
524 | // Let the menu item dispatch | |
525 | item.dispatch(); | |
526 | return; | |
527 | } else { | |
528 | // Handle the keypress | |
529 | if (onKeypress(keypress)) { | |
530 | return; | |
531 | } | |
532 | } | |
533 | } | |
a06459bd KL |
534 | */ |
535 | ||
fca67db0 KL |
536 | if (event instanceof TCommandEvent) { |
537 | if (onCommand((TCommandEvent) event)) { | |
538 | return; | |
539 | } | |
540 | } | |
541 | ||
542 | if (event instanceof TMenuEvent) { | |
543 | if (onMenu((TMenuEvent) event)) { | |
544 | return; | |
545 | } | |
546 | } | |
547 | ||
548 | // Dispatch events to the active window ------------------------------- | |
549 | for (TWindow window: windows) { | |
550 | if (window.getActive()) { | |
a06459bd KL |
551 | if (event instanceof TMouseEvent) { |
552 | TMouseEvent mouse = (TMouseEvent) event; | |
fca67db0 KL |
553 | // Convert the mouse relative x/y to window coordinates |
554 | assert (mouse.getX() == mouse.getAbsoluteX()); | |
555 | assert (mouse.getY() == mouse.getAbsoluteY()); | |
556 | mouse.setX(mouse.getX() - window.getX()); | |
557 | mouse.setY(mouse.getY() - window.getY()); | |
558 | } | |
559 | // System.err("TApplication dispatch event: %s\n", event); | |
560 | window.handleEvent(event); | |
561 | break; | |
562 | } | |
563 | } | |
564 | } | |
565 | /** | |
566 | * Dispatch one event to the appropriate widget or application-level | |
567 | * event handler. This is the secondary event handler used by certain | |
568 | * special dialogs (currently TMessageBox and TFileOpenBox). | |
569 | * | |
570 | * @param event the input event to consume | |
571 | * @see #primaryHandleEvent(TInputEvent event) | |
572 | */ | |
573 | private void secondaryHandleEvent(final TInputEvent event) { | |
574 | // TODO | |
a06459bd KL |
575 | } |
576 | ||
4328bb42 KL |
577 | /** |
578 | * Do stuff when there is no user input. | |
579 | */ | |
580 | private void doIdle() { | |
7b5261bc | 581 | /* |
a06459bd | 582 | TODO |
7b5261bc KL |
583 | // Now run any timers that have timed out |
584 | auto now = Clock.currTime; | |
585 | TTimer [] keepTimers; | |
586 | foreach (t; timers) { | |
587 | if (t.nextTick < now) { | |
588 | t.tick(); | |
589 | if (t.recurring == true) { | |
590 | keepTimers ~= t; | |
591 | } | |
592 | } else { | |
593 | keepTimers ~= t; | |
594 | } | |
595 | } | |
596 | timers = keepTimers; | |
597 | ||
598 | // Call onIdle's | |
599 | foreach (w; windows) { | |
600 | w.onIdle(); | |
601 | } | |
602 | */ | |
4328bb42 | 603 | } |
7d4115a5 | 604 | |
4328bb42 KL |
605 | /** |
606 | * Get the amount of time I can sleep before missing a Timer tick. | |
607 | * | |
608 | * @param timeout = initial (maximum) timeout | |
609 | * @return number of milliseconds between now and the next timer event | |
610 | */ | |
7b5261bc KL |
611 | protected int getSleepTime(final int timeout) { |
612 | /* | |
613 | auto now = Clock.currTime; | |
614 | auto sleepTime = dur!("msecs")(timeout); | |
615 | foreach (t; timers) { | |
616 | if (t.nextTick < now) { | |
617 | return 0; | |
618 | } | |
619 | if ((t.nextTick > now) && | |
620 | ((t.nextTick - now) < sleepTime) | |
621 | ) { | |
622 | sleepTime = t.nextTick - now; | |
623 | } | |
624 | } | |
625 | assert(sleepTime.total!("msecs")() >= 0); | |
626 | return cast(uint)sleepTime.total!("msecs")(); | |
627 | */ | |
628 | // TODO: fix timers. Until then, come back after 250 millis. | |
629 | return 250; | |
7d4115a5 | 630 | } |
4328bb42 | 631 | |
48e27807 KL |
632 | /** |
633 | * Close window. Note that the window's destructor is NOT called by this | |
634 | * method, instead the GC is assumed to do the cleanup. | |
635 | * | |
636 | * @param window the window to remove | |
637 | */ | |
638 | public final void closeWindow(final TWindow window) { | |
fca67db0 KL |
639 | int z = window.getZ(); |
640 | window.setZ(-1); | |
641 | Collections.sort(windows); | |
642 | windows.remove(0); | |
48e27807 | 643 | TWindow activeWindow = null; |
fca67db0 KL |
644 | for (TWindow w: windows) { |
645 | if (w.getZ() > z) { | |
646 | w.setZ(w.getZ() - 1); | |
647 | if (w.getZ() == 0) { | |
648 | w.setActive(true); | |
649 | assert (activeWindow == null); | |
48e27807 KL |
650 | activeWindow = w; |
651 | } else { | |
fca67db0 | 652 | w.setActive(false); |
48e27807 KL |
653 | } |
654 | } | |
655 | } | |
656 | ||
657 | // Perform window cleanup | |
658 | window.onClose(); | |
659 | ||
660 | // Refresh screen | |
661 | repaint = true; | |
662 | ||
fca67db0 KL |
663 | /* |
664 | TODO | |
665 | ||
666 | ||
48e27807 KL |
667 | // Check if we are closing a TMessageBox or similar |
668 | if (secondaryEventReceiver !is null) { | |
669 | assert(secondaryEventFiber !is null); | |
670 | ||
671 | // Do not send events to the secondaryEventReceiver anymore, the | |
672 | // window is closed. | |
673 | secondaryEventReceiver = null; | |
674 | ||
675 | // Special case: if this is called while executing on a | |
676 | // secondaryEventFiber, call it so that widgetEventHandler() can | |
677 | // terminate. | |
678 | if (secondaryEventFiber.state == Fiber.State.HOLD) { | |
679 | secondaryEventFiber.call(); | |
680 | } | |
681 | secondaryEventFiber = null; | |
682 | ||
683 | // Unfreeze the logic in handleEvent() | |
684 | if (primaryEventFiber.state == Fiber.State.HOLD) { | |
685 | primaryEventFiber.call(); | |
686 | } | |
687 | } | |
688 | */ | |
689 | } | |
690 | ||
691 | /** | |
692 | * Switch to the next window. | |
693 | * | |
694 | * @param forward if true, then switch to the next window in the list, | |
695 | * otherwise switch to the previous window in the list | |
696 | */ | |
697 | public final void switchWindow(final boolean forward) { | |
48e27807 | 698 | // Only switch if there are multiple windows |
fca67db0 | 699 | if (windows.size() < 2) { |
48e27807 KL |
700 | return; |
701 | } | |
702 | ||
fca67db0 KL |
703 | // Swap z/active between active window and the next in the list |
704 | int activeWindowI = -1; | |
705 | for (int i = 0; i < windows.size(); i++) { | |
706 | if (windows.get(i).getActive()) { | |
48e27807 KL |
707 | activeWindowI = i; |
708 | break; | |
709 | } | |
710 | } | |
fca67db0 | 711 | assert (activeWindowI >= 0); |
48e27807 KL |
712 | |
713 | // Do not switch if a window is modal | |
fca67db0 | 714 | if (windows.get(activeWindowI).isModal()) { |
48e27807 KL |
715 | return; |
716 | } | |
717 | ||
fca67db0 | 718 | int nextWindowI; |
48e27807 | 719 | if (forward) { |
fca67db0 | 720 | nextWindowI = (activeWindowI + 1) % windows.size(); |
48e27807 KL |
721 | } else { |
722 | if (activeWindowI == 0) { | |
fca67db0 | 723 | nextWindowI = windows.size() - 1; |
48e27807 KL |
724 | } else { |
725 | nextWindowI = activeWindowI - 1; | |
726 | } | |
727 | } | |
fca67db0 KL |
728 | windows.get(activeWindowI).setActive(false); |
729 | windows.get(activeWindowI).setZ(windows.get(nextWindowI).getZ()); | |
730 | windows.get(nextWindowI).setZ(0); | |
731 | windows.get(nextWindowI).setActive(true); | |
48e27807 KL |
732 | |
733 | // Refresh | |
734 | repaint = true; | |
48e27807 KL |
735 | } |
736 | ||
737 | /** | |
738 | * Add a window to my window list and make it active. | |
739 | * | |
740 | * @param window new window to add | |
741 | */ | |
742 | public final void addWindow(final TWindow window) { | |
48e27807 | 743 | // Do not allow a modal window to spawn a non-modal window |
a06459bd KL |
744 | if ((windows.size() > 0) && (windows.get(0).isModal())) { |
745 | assert (window.isModal()); | |
48e27807 | 746 | } |
a06459bd | 747 | for (TWindow w: windows) { |
fca67db0 | 748 | w.setActive(false); |
a06459bd | 749 | w.setZ(w.getZ() + 1); |
48e27807 | 750 | } |
a06459bd | 751 | windows.add(window); |
fca67db0 | 752 | window.setActive(true); |
a06459bd | 753 | window.setZ(0); |
48e27807 KL |
754 | } |
755 | ||
fca67db0 KL |
756 | /** |
757 | * Check if there is a system-modal window on top. | |
758 | * | |
759 | * @return true if the active window is modal | |
760 | */ | |
761 | private boolean modalWindowActive() { | |
762 | if (windows.size() == 0) { | |
763 | return false; | |
764 | } | |
765 | return windows.get(windows.size() - 1).isModal(); | |
766 | } | |
767 | ||
768 | /** | |
769 | * Check if a mouse event would hit either the active menu or any open | |
770 | * sub-menus. | |
771 | * | |
772 | * @param mouse mouse event | |
773 | * @return true if the mouse would hit the active menu or an open | |
774 | * sub-menu | |
775 | */ | |
776 | private boolean mouseOnMenu(final TMouseEvent mouse) { | |
777 | assert (activeMenu != null); | |
778 | List<TMenu> menus = new LinkedList<TMenu>(subMenus); | |
779 | Collections.reverse(menus); | |
780 | for (TMenu menu: menus) { | |
781 | if (menu.mouseWouldHit(mouse)) { | |
782 | return true; | |
783 | } | |
784 | } | |
785 | return activeMenu.mouseWouldHit(mouse); | |
786 | } | |
787 | ||
788 | /** | |
789 | * See if we need to switch window or activate the menu based on | |
790 | * a mouse click. | |
791 | * | |
792 | * @param mouse mouse event | |
793 | */ | |
794 | private void checkSwitchFocus(final TMouseEvent mouse) { | |
795 | ||
796 | if ((mouse.getType() == TMouseEvent.Type.MOUSE_DOWN) | |
797 | && (activeMenu != null) | |
798 | && (mouse.getAbsoluteY() != 0) | |
799 | && (!mouseOnMenu(mouse)) | |
800 | ) { | |
801 | // They clicked outside the active menu, turn it off | |
802 | activeMenu.setActive(false); | |
803 | activeMenu = null; | |
804 | for (TMenu menu: subMenus) { | |
805 | menu.setActive(false); | |
806 | } | |
807 | subMenus.clear(); | |
808 | // Continue checks | |
809 | } | |
810 | ||
811 | // See if they hit the menu bar | |
812 | if ((mouse.getType() == TMouseEvent.Type.MOUSE_DOWN) | |
813 | && (mouse.getMouse1()) | |
814 | && (!modalWindowActive()) | |
815 | && (mouse.getAbsoluteY() == 0) | |
816 | ) { | |
817 | ||
818 | for (TMenu menu: subMenus) { | |
819 | menu.setActive(false); | |
820 | } | |
821 | subMenus.clear(); | |
822 | ||
823 | // They selected the menu, go activate it | |
824 | for (TMenu menu: menus) { | |
825 | if ((mouse.getAbsoluteX() >= menu.getX()) | |
826 | && (mouse.getAbsoluteX() < menu.getX() | |
827 | + menu.getTitle().length() + 2) | |
828 | ) { | |
829 | menu.setActive(true); | |
830 | activeMenu = menu; | |
831 | } else { | |
832 | menu.setActive(false); | |
833 | } | |
834 | } | |
835 | repaint = true; | |
836 | return; | |
837 | } | |
838 | ||
839 | // See if they hit the menu bar | |
840 | if ((mouse.getType() == TMouseEvent.Type.MOUSE_MOTION) | |
841 | && (mouse.getMouse1()) | |
842 | && (activeMenu != null) | |
843 | && (mouse.getAbsoluteY() == 0) | |
844 | ) { | |
845 | ||
846 | TMenu oldMenu = activeMenu; | |
847 | for (TMenu menu: subMenus) { | |
848 | menu.setActive(false); | |
849 | } | |
850 | subMenus.clear(); | |
851 | ||
852 | // See if we should switch menus | |
853 | for (TMenu menu: menus) { | |
854 | if ((mouse.getAbsoluteX() >= menu.getX()) | |
855 | && (mouse.getAbsoluteX() < menu.getX() | |
856 | + menu.getTitle().length() + 2) | |
857 | ) { | |
858 | menu.setActive(true); | |
859 | activeMenu = menu; | |
860 | } | |
861 | } | |
862 | if (oldMenu != activeMenu) { | |
863 | // They switched menus | |
864 | oldMenu.setActive(false); | |
865 | } | |
866 | repaint = true; | |
867 | return; | |
868 | } | |
869 | ||
870 | // Only switch if there are multiple windows | |
871 | if (windows.size() < 2) { | |
872 | return; | |
873 | } | |
874 | ||
875 | // Switch on the upclick | |
876 | if (mouse.getType() != TMouseEvent.Type.MOUSE_UP) { | |
877 | return; | |
878 | } | |
879 | ||
880 | Collections.sort(windows); | |
881 | if (windows.get(0).isModal()) { | |
882 | // Modal windows don't switch | |
883 | return; | |
884 | } | |
885 | ||
886 | for (TWindow window: windows) { | |
887 | assert (!window.isModal()); | |
888 | if (window.mouseWouldHit(mouse)) { | |
889 | if (window == windows.get(0)) { | |
890 | // Clicked on the same window, nothing to do | |
891 | return; | |
892 | } | |
893 | ||
894 | // We will be switching to another window | |
895 | assert (windows.get(0).getActive()); | |
896 | assert (!window.getActive()); | |
897 | windows.get(0).setActive(false); | |
898 | windows.get(0).setZ(window.getZ()); | |
899 | window.setZ(0); | |
900 | window.setActive(true); | |
901 | repaint = true; | |
902 | return; | |
903 | } | |
904 | } | |
905 | ||
906 | // Clicked on the background, nothing to do | |
907 | return; | |
908 | } | |
909 | ||
910 | /** | |
911 | * Turn off the menu. | |
912 | */ | |
928811d8 | 913 | public final void closeMenu() { |
fca67db0 KL |
914 | if (activeMenu != null) { |
915 | activeMenu.setActive(false); | |
916 | activeMenu = null; | |
917 | for (TMenu menu: subMenus) { | |
918 | menu.setActive(false); | |
919 | } | |
920 | subMenus.clear(); | |
921 | } | |
922 | repaint = true; | |
923 | } | |
924 | ||
925 | /** | |
926 | * Turn off a sub-menu. | |
927 | */ | |
928811d8 | 928 | public final void closeSubMenu() { |
fca67db0 KL |
929 | assert (activeMenu != null); |
930 | TMenu item = subMenus.get(subMenus.size() - 1); | |
931 | assert (item != null); | |
932 | item.setActive(false); | |
933 | subMenus.remove(subMenus.size() - 1); | |
934 | repaint = true; | |
935 | } | |
936 | ||
937 | /** | |
938 | * Switch to the next menu. | |
939 | * | |
940 | * @param forward if true, then switch to the next menu in the list, | |
941 | * otherwise switch to the previous menu in the list | |
942 | */ | |
928811d8 | 943 | public final void switchMenu(final boolean forward) { |
fca67db0 KL |
944 | assert (activeMenu != null); |
945 | ||
946 | for (TMenu menu: subMenus) { | |
947 | menu.setActive(false); | |
948 | } | |
949 | subMenus.clear(); | |
950 | ||
951 | for (int i = 0; i < menus.size(); i++) { | |
952 | if (activeMenu == menus.get(i)) { | |
953 | if (forward) { | |
954 | if (i < menus.size() - 1) { | |
955 | i++; | |
956 | } | |
957 | } else { | |
958 | if (i > 0) { | |
959 | i--; | |
960 | } | |
961 | } | |
962 | activeMenu.setActive(false); | |
963 | activeMenu = menus.get(i); | |
964 | activeMenu.setActive(true); | |
965 | repaint = true; | |
966 | return; | |
967 | } | |
968 | } | |
969 | } | |
970 | ||
971 | /** | |
972 | * Method that TApplication subclasses can override to handle menu or | |
973 | * posted command events. | |
974 | * | |
975 | * @param command command event | |
976 | * @return if true, this event was consumed | |
977 | */ | |
978 | protected boolean onCommand(final TCommandEvent command) { | |
979 | /* | |
980 | TODO | |
981 | // Default: handle cmExit | |
982 | if (command.equals(cmExit)) { | |
983 | if (messageBox("Confirmation", "Exit application?", | |
984 | TMessageBox.Type.YESNO).result == TMessageBox.Result.YES) { | |
985 | quit = true; | |
986 | } | |
987 | repaint = true; | |
988 | return true; | |
989 | } | |
990 | ||
991 | if (command.equals(cmShell)) { | |
992 | openTerminal(0, 0, TWindow.Flag.RESIZABLE); | |
993 | repaint = true; | |
994 | return true; | |
995 | } | |
996 | ||
997 | if (command.equals(cmTile)) { | |
998 | tileWindows(); | |
999 | repaint = true; | |
1000 | return true; | |
1001 | } | |
1002 | if (command.equals(cmCascade)) { | |
1003 | cascadeWindows(); | |
1004 | repaint = true; | |
1005 | return true; | |
1006 | } | |
1007 | if (command.equals(cmCloseAll)) { | |
1008 | closeAllWindows(); | |
1009 | repaint = true; | |
1010 | return true; | |
1011 | } | |
1012 | */ | |
1013 | return false; | |
1014 | } | |
1015 | ||
1016 | /** | |
1017 | * Method that TApplication subclasses can override to handle menu | |
1018 | * events. | |
1019 | * | |
1020 | * @param menu menu event | |
1021 | * @return if true, this event was consumed | |
1022 | */ | |
1023 | protected boolean onMenu(final TMenuEvent menu) { | |
1024 | ||
1025 | /* | |
1026 | TODO | |
1027 | // Default: handle MID_EXIT | |
1028 | if (menu.id == TMenu.MID_EXIT) { | |
1029 | if (messageBox("Confirmation", "Exit application?", | |
1030 | TMessageBox.Type.YESNO).result == TMessageBox.Result.YES) { | |
1031 | quit = true; | |
1032 | } | |
1033 | // System.err.printf("onMenu MID_EXIT result: quit = %s\n", quit); | |
1034 | repaint = true; | |
1035 | return true; | |
1036 | } | |
1037 | ||
1038 | if (menu.id == TMenu.MID_SHELL) { | |
1039 | openTerminal(0, 0, TWindow.Flag.RESIZABLE); | |
1040 | repaint = true; | |
1041 | return true; | |
1042 | } | |
1043 | ||
1044 | if (menu.id == TMenu.MID_TILE) { | |
1045 | tileWindows(); | |
1046 | repaint = true; | |
1047 | return true; | |
1048 | } | |
1049 | if (menu.id == TMenu.MID_CASCADE) { | |
1050 | cascadeWindows(); | |
1051 | repaint = true; | |
1052 | return true; | |
1053 | } | |
1054 | if (menu.id == TMenu.MID_CLOSE_ALL) { | |
1055 | closeAllWindows(); | |
1056 | repaint = true; | |
1057 | return true; | |
1058 | } | |
1059 | */ | |
1060 | return false; | |
1061 | } | |
1062 | ||
1063 | /** | |
1064 | * Method that TApplication subclasses can override to handle keystrokes. | |
1065 | * | |
1066 | * @param keypress keystroke event | |
1067 | * @return if true, this event was consumed | |
1068 | */ | |
1069 | protected boolean onKeypress(final TKeypressEvent keypress) { | |
1070 | // Default: only menu shortcuts | |
1071 | ||
1072 | // Process Alt-F, Alt-E, etc. menu shortcut keys | |
1073 | if (!keypress.getKey().getIsKey() | |
1074 | && keypress.getKey().getAlt() | |
1075 | && !keypress.getKey().getCtrl() | |
1076 | && (activeMenu == null) | |
1077 | ) { | |
1078 | ||
1079 | assert (subMenus.size() == 0); | |
1080 | ||
1081 | for (TMenu menu: menus) { | |
1082 | if (Character.toLowerCase(menu.getMnemonic().getShortcut()) | |
1083 | == Character.toLowerCase(keypress.getKey().getCh()) | |
1084 | ) { | |
1085 | activeMenu = menu; | |
1086 | menu.setActive(true); | |
1087 | repaint = true; | |
1088 | return true; | |
1089 | } | |
1090 | } | |
1091 | } | |
1092 | ||
1093 | return false; | |
1094 | } | |
48e27807 | 1095 | |
928811d8 KL |
1096 | /** |
1097 | * Add a keyboard accelerator to the global hash. | |
1098 | * | |
1099 | * @param item menu item this accelerator relates to | |
1100 | * @param keypress keypress that will dispatch a TMenuEvent | |
1101 | */ | |
1102 | public final void addAccelerator(final TMenuItem item, | |
1103 | final TKeypress keypress) { | |
1104 | /* | |
1105 | TODO | |
1106 | assert((keypress in accelerators) is null); | |
1107 | accelerators[keypress] = item; | |
1108 | */ | |
1109 | } | |
1110 | ||
1111 | /** | |
1112 | * Recompute menu x positions based on their title length. | |
1113 | */ | |
1114 | public final void recomputeMenuX() { | |
1115 | int x = 0; | |
1116 | for (TMenu menu: menus) { | |
1117 | menu.setX(x); | |
1118 | x += menu.getTitle().length() + 2; | |
1119 | } | |
1120 | } | |
1121 | ||
1122 | /** | |
1123 | * Post an event to process and turn off the menu. | |
1124 | * | |
1125 | * @param event new event to add to the queue | |
1126 | */ | |
1127 | public final void addMenuEvent(final TInputEvent event) { | |
1128 | /* | |
1129 | TODO - synchronize correctly | |
1130 | eventQueue ~= event; | |
1131 | */ | |
1132 | closeMenu(); | |
1133 | } | |
1134 | ||
1135 | /** | |
1136 | * Add a sub-menu to the list of open sub-menus. | |
1137 | * | |
1138 | * @param menu sub-menu | |
1139 | */ | |
1140 | public final void addSubMenu(final TMenu menu) { | |
1141 | subMenus.add(menu); | |
1142 | } | |
1143 | ||
7d4115a5 | 1144 | } |