Commit | Line | Data |
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07bf635f RS |
1 | /* A general interface to the widgets of different toolkits. |
2 | Copyright (C) 1992, 1993 Lucid, Inc. | |
3 | ||
4 | This file is part of the Lucid Widget Library. | |
5 | ||
6 | The Lucid Widget Library is free software; you can redistribute it and/or | |
7 | modify it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2, or (at your option) | |
9 | any later version. | |
10 | ||
11 | The Lucid Widget Library is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Emacs; see the file COPYING. If not, write to | |
18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
19 | ||
20 | #ifdef NeXT | |
21 | #undef __STRICT_BSD__ /* ick */ | |
22 | #endif | |
23 | ||
24 | #include <stdlib.h> | |
25 | #include <unistd.h> | |
26 | #include <sys/types.h> | |
27 | #include <string.h> | |
28 | #include <stdio.h> | |
5f61736f | 29 | #include <ctype.h> |
e7818b5a | 30 | #include "lwlib-int.h" |
07bf635f | 31 | #include "lwlib-utils.h" |
01492d1b | 32 | #include <X11/StringDefs.h> |
07bf635f RS |
33 | |
34 | #if defined(__GNUC__) && !defined(alloca) | |
35 | #define alloca __builtin_alloca | |
36 | #endif | |
37 | ||
9331cca8 | 38 | #if ((!__GNUC__) && !defined(__hpux)) && !defined(_AIX) |
07bf635f RS |
39 | #include <alloca.h> |
40 | #endif | |
41 | ||
9331cca8 | 42 | #if defined(_AIX) |
07bf635f RS |
43 | #pragma alloca |
44 | #endif | |
45 | ||
46 | #if defined (USE_LUCID) | |
47 | #include "lwlib-Xlw.h" | |
48 | #endif | |
49 | #if defined (USE_MOTIF) | |
50 | #include "lwlib-Xm.h" | |
51 | #endif | |
52 | #if defined (USE_OLIT) | |
53 | #include "lwlib-Xol.h" | |
54 | #endif | |
9331cca8 FP |
55 | #if defined (USE_XAW) |
56 | #include "lwlib-Xaw.h" | |
57 | #endif | |
07bf635f RS |
58 | |
59 | #if !defined (USE_LUCID) && !defined (USE_MOTIF) && !defined (USE_OLIT) | |
60 | ERROR! At least one of USE_LUCID, USE_MOTIF or USE_OLIT must be defined. | |
61 | #endif | |
62 | ||
63 | #if defined (USE_MOTIF) && defined (USE_OLIT) | |
64 | ERROR! no more than one of USE_MOTIF and USE_OLIT may be defined. | |
65 | #endif | |
66 | ||
67 | /* List of all widgets managed by the library. */ | |
68 | static widget_info* | |
69 | all_widget_info = NULL; | |
70 | ||
71 | \f/* Forward declarations */ | |
72 | static void | |
5f61736f | 73 | instanciate_widget_instance (/* widget_instance* instance */); |
07bf635f RS |
74 | |
75 | \f/* utility functions for widget_instance and widget_info */ | |
76 | static char * | |
5f61736f RS |
77 | safe_strdup (s) |
78 | char *s; | |
07bf635f RS |
79 | { |
80 | char *result; | |
81 | if (! s) return 0; | |
82 | result = (char *) malloc (strlen (s) + 1); | |
83 | if (! result) | |
84 | return 0; | |
85 | strcpy (result, s); | |
86 | return result; | |
87 | } | |
88 | ||
5f61736f RS |
89 | /* Like strcmp but ignore differences in case. */ |
90 | ||
91 | static int | |
ed9c1473 | 92 | my_strcasecmp (s1, s2) |
5f61736f RS |
93 | char *s1, *s2; |
94 | { | |
95 | while (1) | |
96 | { | |
97 | int c1 = *s1++; | |
98 | int c2 = *s2++; | |
99 | if (isupper (c1)) | |
100 | c1 = tolower (c1); | |
101 | if (isupper (c2)) | |
102 | c2 = tolower (c2); | |
103 | if (c1 != c2) | |
104 | return (c1 > c2 ? 1 : -1); | |
105 | if (c1 == 0) | |
106 | return 0; | |
107 | } | |
108 | } | |
109 | ||
07bf635f | 110 | static void |
5f61736f RS |
111 | safe_free_str (s) |
112 | char *s; | |
07bf635f RS |
113 | { |
114 | if (s) free (s); | |
115 | } | |
116 | ||
117 | static widget_value *widget_value_free_list = 0; | |
0b96f00b | 118 | static int malloc_cpt = 0; |
07bf635f RS |
119 | |
120 | widget_value * | |
121 | malloc_widget_value () | |
122 | { | |
123 | widget_value *wv; | |
124 | if (widget_value_free_list) | |
125 | { | |
126 | wv = widget_value_free_list; | |
127 | widget_value_free_list = wv->free_list; | |
128 | wv->free_list = 0; | |
129 | } | |
130 | else | |
131 | { | |
132 | wv = (widget_value *) malloc (sizeof (widget_value)); | |
0b96f00b | 133 | malloc_cpt++; |
07bf635f RS |
134 | } |
135 | memset (wv, 0, sizeof (widget_value)); | |
136 | return wv; | |
137 | } | |
138 | ||
139 | /* this is analagous to free(). It frees only what was allocated | |
140 | by malloc_widget_value(), and no substructures. | |
141 | */ | |
142 | void | |
143 | free_widget_value (wv) | |
144 | widget_value *wv; | |
145 | { | |
146 | if (wv->free_list) | |
147 | abort (); | |
0b96f00b | 148 | |
d2a5919f | 149 | if (malloc_cpt > 25) |
0b96f00b FP |
150 | { |
151 | /* When the number of already allocated cells is too big, | |
152 | We free it. */ | |
0b96f00b | 153 | free (wv); |
d2a5919f | 154 | malloc_cpt--; |
0b96f00b FP |
155 | } |
156 | else | |
157 | { | |
158 | wv->free_list = widget_value_free_list; | |
159 | widget_value_free_list = wv; | |
160 | } | |
07bf635f RS |
161 | } |
162 | ||
163 | static void | |
5f61736f RS |
164 | free_widget_value_tree (wv) |
165 | widget_value *wv; | |
07bf635f RS |
166 | { |
167 | if (!wv) | |
168 | return; | |
169 | ||
170 | if (wv->name) free (wv->name); | |
171 | if (wv->value) free (wv->value); | |
172 | if (wv->key) free (wv->key); | |
173 | ||
174 | wv->name = wv->value = wv->key = (char *) 0xDEADBEEF; | |
175 | ||
176 | if (wv->toolkit_data && wv->free_toolkit_data) | |
177 | { | |
178 | free (wv->toolkit_data); | |
179 | wv->toolkit_data = (void *) 0xDEADBEEF; | |
180 | } | |
181 | ||
182 | if (wv->contents && (wv->contents != (widget_value*)1)) | |
183 | { | |
184 | free_widget_value_tree (wv->contents); | |
185 | wv->contents = (widget_value *) 0xDEADBEEF; | |
186 | } | |
187 | if (wv->next) | |
188 | { | |
189 | free_widget_value_tree (wv->next); | |
190 | wv->next = (widget_value *) 0xDEADBEEF; | |
191 | } | |
192 | free_widget_value (wv); | |
193 | } | |
194 | ||
195 | static widget_value * | |
5f61736f RS |
196 | copy_widget_value_tree (val, change) |
197 | widget_value* val; | |
198 | change_type change; | |
07bf635f RS |
199 | { |
200 | widget_value* copy; | |
201 | ||
202 | if (!val) | |
203 | return NULL; | |
204 | if (val == (widget_value *) 1) | |
205 | return val; | |
206 | ||
207 | copy = malloc_widget_value (); | |
208 | copy->name = safe_strdup (val->name); | |
209 | copy->value = safe_strdup (val->value); | |
210 | copy->key = safe_strdup (val->key); | |
211 | copy->enabled = val->enabled; | |
212 | copy->selected = val->selected; | |
213 | copy->edited = False; | |
214 | copy->change = change; | |
215 | copy->contents = copy_widget_value_tree (val->contents, change); | |
216 | copy->call_data = val->call_data; | |
217 | copy->next = copy_widget_value_tree (val->next, change); | |
218 | copy->toolkit_data = NULL; | |
219 | copy->free_toolkit_data = False; | |
220 | return copy; | |
221 | } | |
222 | ||
223 | static widget_info * | |
5f61736f RS |
224 | allocate_widget_info (type, name, id, val, pre_activate_cb, selection_cb, post_activate_cb) |
225 | char* type; | |
226 | char* name; | |
227 | LWLIB_ID id; | |
228 | widget_value* val; | |
229 | lw_callback pre_activate_cb; | |
230 | lw_callback selection_cb; | |
231 | lw_callback post_activate_cb; | |
07bf635f RS |
232 | { |
233 | widget_info* info = (widget_info*)malloc (sizeof (widget_info)); | |
234 | info->type = safe_strdup (type); | |
235 | info->name = safe_strdup (name); | |
236 | info->id = id; | |
237 | info->val = copy_widget_value_tree (val, STRUCTURAL_CHANGE); | |
238 | info->busy = False; | |
239 | info->pre_activate_cb = pre_activate_cb; | |
240 | info->selection_cb = selection_cb; | |
241 | info->post_activate_cb = post_activate_cb; | |
242 | info->instances = NULL; | |
243 | ||
244 | info->next = all_widget_info; | |
245 | all_widget_info = info; | |
246 | ||
247 | return info; | |
248 | } | |
249 | ||
250 | static void | |
5f61736f RS |
251 | free_widget_info (info) |
252 | widget_info* info; | |
07bf635f RS |
253 | { |
254 | safe_free_str (info->type); | |
255 | safe_free_str (info->name); | |
256 | free_widget_value_tree (info->val); | |
257 | memset ((void*)info, 0xDEADBEEF, sizeof (widget_info)); | |
258 | free (info); | |
259 | } | |
260 | ||
261 | static void | |
5f61736f RS |
262 | mark_widget_destroyed (widget, closure, call_data) |
263 | Widget widget; | |
264 | XtPointer closure; | |
265 | XtPointer call_data; | |
07bf635f RS |
266 | { |
267 | widget_instance* instance = (widget_instance*)closure; | |
268 | ||
269 | /* be very conservative */ | |
270 | if (instance->widget == widget) | |
271 | instance->widget = NULL; | |
272 | } | |
273 | ||
274 | static widget_instance * | |
5f61736f RS |
275 | allocate_widget_instance (info, parent, pop_up_p) |
276 | widget_info* info; | |
277 | Widget parent; | |
278 | Boolean pop_up_p; | |
07bf635f RS |
279 | { |
280 | widget_instance* instance = | |
281 | (widget_instance*)malloc (sizeof (widget_instance)); | |
282 | instance->parent = parent; | |
283 | instance->pop_up_p = pop_up_p; | |
284 | instance->info = info; | |
285 | instance->next = info->instances; | |
286 | info->instances = instance; | |
287 | ||
288 | instanciate_widget_instance (instance); | |
289 | ||
290 | XtAddCallback (instance->widget, XtNdestroyCallback, | |
291 | mark_widget_destroyed, (XtPointer)instance); | |
292 | return instance; | |
293 | } | |
294 | ||
295 | static void | |
5f61736f RS |
296 | free_widget_instance (instance) |
297 | widget_instance* instance; | |
07bf635f RS |
298 | { |
299 | memset ((void*)instance, 0xDEADBEEF, sizeof (widget_instance)); | |
300 | free (instance); | |
301 | } | |
302 | ||
303 | static widget_info * | |
5f61736f RS |
304 | get_widget_info (id, remove_p) |
305 | LWLIB_ID id; | |
306 | Boolean remove_p; | |
07bf635f RS |
307 | { |
308 | widget_info* info; | |
309 | widget_info* prev; | |
310 | for (prev = NULL, info = all_widget_info; | |
311 | info; | |
312 | prev = info, info = info->next) | |
313 | if (info->id == id) | |
314 | { | |
315 | if (remove_p) | |
316 | { | |
317 | if (prev) | |
318 | prev->next = info->next; | |
319 | else | |
320 | all_widget_info = info->next; | |
321 | } | |
322 | return info; | |
323 | } | |
324 | return NULL; | |
325 | } | |
326 | ||
9331cca8 FP |
327 | /* Internal function used by the library dependent implementation to get the |
328 | widget_value for a given widget in an instance */ | |
329 | widget_info * | |
330 | lw_get_widget_info (LWLIB_ID id) | |
331 | { | |
332 | return get_widget_info (id, 0); | |
333 | } | |
334 | ||
07bf635f | 335 | static widget_instance * |
5f61736f RS |
336 | get_widget_instance (widget, remove_p) |
337 | Widget widget; | |
338 | Boolean remove_p; | |
07bf635f RS |
339 | { |
340 | widget_info* info; | |
341 | widget_instance* instance; | |
342 | widget_instance* prev; | |
343 | for (info = all_widget_info; info; info = info->next) | |
344 | for (prev = NULL, instance = info->instances; | |
345 | instance; | |
346 | prev = instance, instance = instance->next) | |
347 | if (instance->widget == widget) | |
348 | { | |
349 | if (remove_p) | |
350 | { | |
351 | if (prev) | |
352 | prev->next = instance->next; | |
353 | else | |
354 | info->instances = instance->next; | |
355 | } | |
356 | return instance; | |
357 | } | |
358 | return (widget_instance *) 0; | |
359 | } | |
360 | ||
361 | static widget_instance* | |
5f61736f RS |
362 | find_instance (id, parent, pop_up_p) |
363 | LWLIB_ID id; | |
364 | Widget parent; | |
365 | Boolean pop_up_p; | |
07bf635f RS |
366 | { |
367 | widget_info* info = get_widget_info (id, False); | |
368 | widget_instance* instance; | |
369 | ||
370 | if (info) | |
371 | for (instance = info->instances; instance; instance = instance->next) | |
372 | if (instance->parent == parent && instance->pop_up_p == pop_up_p) | |
373 | return instance; | |
374 | ||
375 | return NULL; | |
376 | } | |
377 | ||
378 | \f | |
379 | /* utility function for widget_value */ | |
380 | static Boolean | |
5f61736f RS |
381 | safe_strcmp (s1, s2) |
382 | char* s1; | |
383 | char* s2; | |
07bf635f RS |
384 | { |
385 | if (!!s1 ^ !!s2) return True; | |
386 | return (s1 && s2) ? strcmp (s1, s2) : s1 ? False : !!s2; | |
387 | } | |
388 | ||
389 | static int | |
5f61736f RS |
390 | max (i1, i2) |
391 | int i1; | |
392 | int i2; | |
07bf635f RS |
393 | { |
394 | return i1 > i2 ? i1 : i2; | |
395 | } | |
396 | ||
397 | ||
398 | #if 0 | |
399 | # define EXPLAIN(name, oc, nc, desc, a1, a2) \ | |
400 | printf ("Change: \"%s\"\tmax(%s=%d,%s=%d)\t%s %d %d\n", \ | |
401 | name, \ | |
402 | (oc == NO_CHANGE ? "none" : \ | |
403 | (oc == INVISIBLE_CHANGE ? "invisible" : \ | |
404 | (oc == VISIBLE_CHANGE ? "visible" : \ | |
405 | (oc == STRUCTURAL_CHANGE ? "structural" : "???")))), \ | |
406 | oc, \ | |
407 | (nc == NO_CHANGE ? "none" : \ | |
408 | (nc == INVISIBLE_CHANGE ? "invisible" : \ | |
409 | (nc == VISIBLE_CHANGE ? "visible" : \ | |
410 | (nc == STRUCTURAL_CHANGE ? "structural" : "???")))), \ | |
411 | nc, desc, a1, a2) | |
412 | #else | |
413 | # define EXPLAIN(name, oc, nc, desc, a1, a2) | |
414 | #endif | |
415 | ||
416 | ||
417 | static widget_value * | |
5f61736f RS |
418 | merge_widget_value (val1, val2, level) |
419 | widget_value* val1; | |
420 | widget_value* val2; | |
421 | int level; | |
07bf635f RS |
422 | { |
423 | change_type change; | |
424 | widget_value* merged_next; | |
425 | widget_value* merged_contents; | |
426 | ||
427 | if (!val1) | |
428 | { | |
429 | if (val2) | |
430 | return copy_widget_value_tree (val2, STRUCTURAL_CHANGE); | |
431 | else | |
432 | return NULL; | |
433 | } | |
434 | if (!val2) | |
435 | { | |
436 | free_widget_value_tree (val1); | |
437 | return NULL; | |
438 | } | |
439 | ||
440 | change = NO_CHANGE; | |
441 | ||
442 | if (safe_strcmp (val1->name, val2->name)) | |
443 | { | |
444 | EXPLAIN (val1->name, change, STRUCTURAL_CHANGE, "name change", | |
445 | val1->name, val2->name); | |
446 | change = max (change, STRUCTURAL_CHANGE); | |
447 | safe_free_str (val1->name); | |
448 | val1->name = safe_strdup (val2->name); | |
449 | } | |
450 | if (safe_strcmp (val1->value, val2->value)) | |
451 | { | |
452 | EXPLAIN (val1->name, change, VISIBLE_CHANGE, "value change", | |
453 | val1->value, val2->value); | |
454 | change = max (change, VISIBLE_CHANGE); | |
455 | safe_free_str (val1->value); | |
456 | val1->value = safe_strdup (val2->value); | |
457 | } | |
458 | if (safe_strcmp (val1->key, val2->key)) | |
459 | { | |
460 | EXPLAIN (val1->name, change, VISIBLE_CHANGE, "key change", | |
461 | val1->key, val2->key); | |
462 | change = max (change, VISIBLE_CHANGE); | |
463 | safe_free_str (val1->key); | |
464 | val1->key = safe_strdup (val2->key); | |
465 | } | |
466 | if (val1->enabled != val2->enabled) | |
467 | { | |
468 | EXPLAIN (val1->name, change, VISIBLE_CHANGE, "enablement change", | |
469 | val1->enabled, val2->enabled); | |
470 | change = max (change, VISIBLE_CHANGE); | |
471 | val1->enabled = val2->enabled; | |
472 | } | |
473 | if (val1->selected != val2->selected) | |
474 | { | |
475 | EXPLAIN (val1->name, change, VISIBLE_CHANGE, "selection change", | |
476 | val1->selected, val2->selected); | |
477 | change = max (change, VISIBLE_CHANGE); | |
478 | val1->selected = val2->selected; | |
479 | } | |
480 | if (val1->call_data != val2->call_data) | |
481 | { | |
482 | EXPLAIN (val1->name, change, INVISIBLE_CHANGE, "call-data change", | |
483 | val1->call_data, val2->call_data); | |
484 | change = max (change, INVISIBLE_CHANGE); | |
485 | val1->call_data = val2->call_data; | |
486 | } | |
487 | ||
488 | if (level > 0) | |
489 | { | |
490 | merged_contents = | |
491 | merge_widget_value (val1->contents, val2->contents, level - 1); | |
492 | ||
493 | if (val1->contents && !merged_contents) | |
494 | { | |
495 | EXPLAIN (val1->name, change, INVISIBLE_CHANGE, "(contents gone)", | |
496 | 0, 0); | |
497 | change = max (change, INVISIBLE_CHANGE); | |
498 | } | |
499 | else if (merged_contents && merged_contents->change != NO_CHANGE) | |
500 | { | |
501 | EXPLAIN (val1->name, change, INVISIBLE_CHANGE, "(contents change)", | |
502 | 0, 0); | |
503 | change = max (change, INVISIBLE_CHANGE); | |
504 | } | |
505 | ||
506 | val1->contents = merged_contents; | |
507 | } | |
508 | ||
509 | merged_next = merge_widget_value (val1->next, val2->next, level); | |
510 | ||
511 | if (val1->next && !merged_next) | |
512 | { | |
513 | EXPLAIN (val1->name, change, STRUCTURAL_CHANGE, "(following gone)", | |
514 | 0, 0); | |
515 | change = max (change, STRUCTURAL_CHANGE); | |
516 | } | |
517 | else if (merged_next) | |
518 | { | |
519 | if (merged_next->change) | |
520 | EXPLAIN (val1->name, change, merged_next->change, "(following change)", | |
521 | 0, 0); | |
522 | change = max (change, merged_next->change); | |
523 | } | |
524 | ||
525 | val1->next = merged_next; | |
526 | ||
527 | val1->change = change; | |
528 | ||
529 | if (change > NO_CHANGE && val1->toolkit_data) | |
530 | { | |
531 | if (val1->free_toolkit_data) | |
532 | free (val1->toolkit_data); | |
533 | val1->toolkit_data = NULL; | |
534 | } | |
535 | ||
536 | return val1; | |
537 | } | |
538 | ||
539 | \f | |
540 | /* modifying the widgets */ | |
541 | static Widget | |
5f61736f RS |
542 | name_to_widget (instance, name) |
543 | widget_instance* instance; | |
544 | char* name; | |
07bf635f RS |
545 | { |
546 | Widget widget = NULL; | |
547 | ||
548 | if (!instance->widget) | |
549 | return NULL; | |
550 | ||
551 | if (!strcmp (XtName (instance->widget), name)) | |
552 | widget = instance->widget; | |
553 | else | |
554 | { | |
555 | int length = strlen (name) + 2; | |
556 | char* real_name = (char *) alloca (length); | |
557 | real_name [0] = '*'; | |
558 | strcpy (real_name + 1, name); | |
559 | ||
560 | widget = XtNameToWidget (instance->widget, real_name); | |
561 | } | |
562 | return widget; | |
563 | } | |
564 | ||
565 | static void | |
5f61736f RS |
566 | set_one_value (instance, val, deep_p) |
567 | widget_instance* instance; | |
568 | widget_value* val; | |
569 | Boolean deep_p; | |
07bf635f RS |
570 | { |
571 | Widget widget = name_to_widget (instance, val->name); | |
572 | ||
573 | if (widget) | |
574 | { | |
575 | #if defined (USE_LUCID) | |
576 | if (lw_lucid_widget_p (instance->widget)) | |
577 | xlw_update_one_widget (instance, widget, val, deep_p); | |
578 | #endif | |
579 | #if defined (USE_MOTIF) | |
580 | if (lw_motif_widget_p (instance->widget)) | |
581 | xm_update_one_widget (instance, widget, val, deep_p); | |
582 | #endif | |
583 | #if defined (USE_OLIT) | |
584 | if (lw_olit_widget_p (instance->widget)) | |
585 | xol_update_one_widget (instance, widget, val, deep_p); | |
9331cca8 FP |
586 | #endif |
587 | #if defined (USE_XAW) | |
588 | if (lw_xaw_widget_p (instance->widget)) | |
589 | xaw_update_one_widget (instance, widget, val, deep_p); | |
07bf635f RS |
590 | #endif |
591 | } | |
592 | } | |
593 | ||
594 | static void | |
5f61736f RS |
595 | update_one_widget_instance (instance, deep_p) |
596 | widget_instance* instance; | |
597 | Boolean deep_p; | |
07bf635f RS |
598 | { |
599 | widget_value *val; | |
600 | ||
601 | if (!instance->widget) | |
602 | /* the widget was destroyed */ | |
603 | return; | |
604 | ||
605 | for (val = instance->info->val; val; val = val->next) | |
606 | if (val->change != NO_CHANGE) | |
607 | set_one_value (instance, val, deep_p); | |
608 | } | |
609 | ||
610 | static void | |
5f61736f RS |
611 | update_all_widget_values (info, deep_p) |
612 | widget_info* info; | |
613 | Boolean deep_p; | |
07bf635f RS |
614 | { |
615 | widget_instance* instance; | |
616 | widget_value* val; | |
617 | ||
618 | for (instance = info->instances; instance; instance = instance->next) | |
619 | update_one_widget_instance (instance, deep_p); | |
620 | ||
621 | for (val = info->val; val; val = val->next) | |
622 | val->change = NO_CHANGE; | |
623 | } | |
624 | ||
625 | void | |
5f61736f RS |
626 | lw_modify_all_widgets (id, val, deep_p) |
627 | LWLIB_ID id; | |
628 | widget_value* val; | |
629 | Boolean deep_p; | |
07bf635f RS |
630 | { |
631 | widget_info* info = get_widget_info (id, False); | |
632 | widget_value* new_val; | |
633 | widget_value* next_new_val; | |
634 | widget_value* cur; | |
635 | widget_value* prev; | |
636 | widget_value* next; | |
637 | int found; | |
638 | ||
639 | if (!info) | |
640 | return; | |
641 | ||
642 | for (new_val = val; new_val; new_val = new_val->next) | |
643 | { | |
644 | next_new_val = new_val->next; | |
645 | new_val->next = NULL; | |
646 | found = False; | |
647 | for (prev = NULL, cur = info->val; cur; prev = cur, cur = cur->next) | |
648 | if (!strcmp (cur->name, new_val->name)) | |
649 | { | |
650 | found = True; | |
651 | next = cur->next; | |
652 | cur->next = NULL; | |
653 | cur = merge_widget_value (cur, new_val, deep_p ? 1000 : 1); | |
654 | if (prev) | |
655 | prev->next = cur ? cur : next; | |
656 | else | |
657 | info->val = cur ? cur : next; | |
658 | if (cur) | |
659 | cur->next = next; | |
660 | break; | |
661 | } | |
662 | if (!found) | |
663 | { | |
664 | /* Could not find it, add it */ | |
665 | if (prev) | |
666 | prev->next = copy_widget_value_tree (new_val, STRUCTURAL_CHANGE); | |
667 | else | |
668 | info->val = copy_widget_value_tree (new_val, STRUCTURAL_CHANGE); | |
669 | } | |
670 | new_val->next = next_new_val; | |
671 | } | |
672 | ||
673 | update_all_widget_values (info, deep_p); | |
674 | } | |
675 | ||
676 | \f | |
677 | /* creating the widgets */ | |
678 | ||
679 | static void | |
5f61736f RS |
680 | initialize_widget_instance (instance) |
681 | widget_instance* instance; | |
07bf635f RS |
682 | { |
683 | widget_value* val; | |
684 | ||
685 | for (val = instance->info->val; val; val = val->next) | |
686 | val->change = STRUCTURAL_CHANGE; | |
687 | ||
688 | update_one_widget_instance (instance, True); | |
689 | ||
690 | for (val = instance->info->val; val; val = val->next) | |
691 | val->change = NO_CHANGE; | |
692 | } | |
693 | ||
694 | ||
695 | static widget_creation_function | |
5f61736f RS |
696 | find_in_table (type, table) |
697 | char* type; | |
698 | widget_creation_entry* table; | |
07bf635f RS |
699 | { |
700 | widget_creation_entry* cur; | |
701 | for (cur = table; cur->type; cur++) | |
ed9c1473 | 702 | if (!my_strcasecmp (type, cur->type)) |
07bf635f RS |
703 | return cur->function; |
704 | return NULL; | |
705 | } | |
706 | ||
707 | static Boolean | |
5f61736f RS |
708 | dialog_spec_p (name) |
709 | char* name; | |
07bf635f RS |
710 | { |
711 | /* return True if name matches [EILPQeilpq][1-9][Bb] or | |
712 | [EILPQeilpq][1-9][Bb][Rr][1-9] */ | |
713 | if (!name) | |
714 | return False; | |
715 | ||
716 | switch (name [0]) | |
717 | { | |
718 | case 'E': case 'I': case 'L': case 'P': case 'Q': | |
719 | case 'e': case 'i': case 'l': case 'p': case 'q': | |
720 | if (name [1] >= '0' && name [1] <= '9') | |
721 | { | |
722 | if (name [2] != 'B' && name [2] != 'b') | |
723 | return False; | |
724 | if (!name [3]) | |
725 | return True; | |
726 | if ((name [3] == 'T' || name [3] == 't') && !name [4]) | |
727 | return True; | |
728 | if ((name [3] == 'R' || name [3] == 'r') | |
729 | && name [4] >= '0' && name [4] <= '9' && !name [5]) | |
730 | return True; | |
731 | return False; | |
732 | } | |
733 | else | |
734 | return False; | |
735 | ||
736 | default: | |
737 | return False; | |
738 | } | |
739 | } | |
740 | ||
741 | static void | |
5f61736f RS |
742 | instanciate_widget_instance (instance) |
743 | widget_instance* instance; | |
07bf635f RS |
744 | { |
745 | widget_creation_function function = NULL; | |
746 | ||
747 | #if defined (USE_LUCID) | |
748 | if (!function) | |
749 | function = find_in_table (instance->info->type, xlw_creation_table); | |
750 | #endif | |
751 | #if defined(USE_MOTIF) | |
752 | if (!function) | |
753 | function = find_in_table (instance->info->type, xm_creation_table); | |
754 | #endif | |
755 | #if defined (USE_OLIT) | |
756 | if (!function) | |
757 | function = find_in_table (instance->info->type, xol_creation_table); | |
758 | #endif | |
9331cca8 FP |
759 | #if defined (USE_XAW) |
760 | if (!function) | |
761 | function = find_in_table (instance->info->type, xaw_creation_table); | |
762 | #endif | |
07bf635f RS |
763 | |
764 | if (!function) | |
765 | { | |
766 | if (dialog_spec_p (instance->info->type)) | |
767 | { | |
768 | #if defined (USE_LUCID) | |
769 | /* not yet */ | |
770 | #endif | |
771 | #if defined(USE_MOTIF) | |
772 | if (!function) | |
773 | function = xm_create_dialog; | |
774 | #endif | |
9331cca8 FP |
775 | #if defined (USE_XAW) |
776 | if (!function) | |
777 | function = xaw_create_dialog; | |
778 | #endif | |
07bf635f RS |
779 | #if defined (USE_OLIT) |
780 | /* not yet */ | |
781 | #endif | |
782 | } | |
783 | } | |
784 | ||
785 | if (!function) | |
786 | { | |
787 | printf ("No creation function for widget type %s\n", | |
788 | instance->info->type); | |
789 | abort (); | |
790 | } | |
791 | ||
792 | instance->widget = (*function) (instance); | |
793 | ||
794 | if (!instance->widget) | |
795 | abort (); | |
796 | ||
797 | /* XtRealizeWidget (instance->widget);*/ | |
798 | } | |
799 | ||
800 | void | |
5f61736f RS |
801 | lw_register_widget (type, name, id, val, pre_activate_cb, selection_cb, post_activate_cb) |
802 | char* type; | |
803 | char* name; | |
804 | LWLIB_ID id; | |
805 | widget_value* val; | |
806 | lw_callback pre_activate_cb; | |
807 | lw_callback selection_cb; | |
808 | lw_callback post_activate_cb; | |
07bf635f RS |
809 | { |
810 | if (!get_widget_info (id, False)) | |
811 | allocate_widget_info (type, name, id, val, pre_activate_cb, selection_cb, | |
812 | post_activate_cb); | |
813 | } | |
814 | ||
815 | Widget | |
5f61736f RS |
816 | lw_get_widget (id, parent, pop_up_p) |
817 | LWLIB_ID id; | |
818 | Widget parent; | |
819 | Boolean pop_up_p; | |
07bf635f RS |
820 | { |
821 | widget_instance* instance; | |
822 | ||
823 | instance = find_instance (id, parent, pop_up_p); | |
824 | return instance ? instance->widget : NULL; | |
825 | } | |
826 | ||
827 | Widget | |
5f61736f RS |
828 | lw_make_widget (id, parent, pop_up_p) |
829 | LWLIB_ID id; | |
830 | Widget parent; | |
831 | Boolean pop_up_p; | |
07bf635f RS |
832 | { |
833 | widget_instance* instance; | |
834 | widget_info* info; | |
835 | ||
836 | instance = find_instance (id, parent, pop_up_p); | |
837 | if (!instance) | |
838 | { | |
839 | info = get_widget_info (id, False); | |
840 | if (!info) | |
841 | return NULL; | |
842 | instance = allocate_widget_instance (info, parent, pop_up_p); | |
843 | initialize_widget_instance (instance); | |
844 | } | |
845 | if (!instance->widget) | |
846 | abort (); | |
847 | return instance->widget; | |
848 | } | |
849 | ||
850 | Widget | |
5f61736f RS |
851 | lw_create_widget (type, name, id, val, parent, pop_up_p, pre_activate_cb, selection_cb, post_activate_cb) |
852 | char* type; | |
853 | char* name; | |
854 | LWLIB_ID id; | |
855 | widget_value* val; | |
856 | Widget parent; | |
857 | Boolean pop_up_p; | |
858 | lw_callback pre_activate_cb; | |
859 | lw_callback selection_cb; | |
860 | lw_callback post_activate_cb; | |
07bf635f RS |
861 | { |
862 | lw_register_widget (type, name, id, val, pre_activate_cb, selection_cb, | |
863 | post_activate_cb); | |
864 | return lw_make_widget (id, parent, pop_up_p); | |
865 | } | |
866 | ||
867 | \f | |
868 | /* destroying the widgets */ | |
869 | static void | |
5f61736f RS |
870 | destroy_one_instance (instance) |
871 | widget_instance* instance; | |
07bf635f RS |
872 | { |
873 | /* Remove the destroy callback on the widget; that callback will try to | |
874 | dereference the instance object (to set its widget slot to 0, since the | |
875 | widget is dead.) Since the instance is now dead, we don't have to worry | |
876 | about the fact that its widget is dead too. | |
877 | ||
878 | This happens in the Phase2Destroy of the widget, so this callback would | |
879 | not have been run until arbitrarily long after the instance was freed. | |
880 | */ | |
881 | if (instance->widget) | |
882 | XtRemoveCallback (instance->widget, XtNdestroyCallback, | |
883 | mark_widget_destroyed, (XtPointer)instance); | |
884 | ||
885 | if (instance->widget) | |
886 | { | |
887 | /* The else are pretty tricky here, including the empty statement | |
888 | at the end because it would be very bad to destroy a widget | |
889 | twice. */ | |
890 | #if defined (USE_LUCID) | |
891 | if (lw_lucid_widget_p (instance->widget)) | |
892 | xlw_destroy_instance (instance); | |
893 | else | |
894 | #endif | |
895 | #if defined (USE_MOTIF) | |
896 | if (lw_motif_widget_p (instance->widget)) | |
897 | xm_destroy_instance (instance); | |
898 | else | |
899 | #endif | |
900 | #if defined (USE_OLIT) | |
901 | if (lw_olit_widget_p (instance->widget)) | |
902 | xol_destroy_instance (instance); | |
903 | else | |
9331cca8 FP |
904 | #endif |
905 | #if defined (USE_XAW) | |
906 | if (lw_xaw_widget_p (instance->widget)) | |
907 | xaw_destroy_instance (instance); | |
908 | else | |
07bf635f RS |
909 | #endif |
910 | /* do not remove the empty statement */ | |
911 | ; | |
912 | } | |
913 | ||
914 | free_widget_instance (instance); | |
915 | } | |
916 | ||
917 | void | |
5f61736f RS |
918 | lw_destroy_widget (w) |
919 | Widget w; | |
07bf635f RS |
920 | { |
921 | widget_instance* instance = get_widget_instance (w, True); | |
922 | ||
923 | if (instance) | |
924 | { | |
925 | widget_info *info = instance->info; | |
926 | /* instance has already been removed from the list; free it */ | |
927 | destroy_one_instance (instance); | |
928 | /* if there are no instances left, free the info too */ | |
929 | if (!info->instances) | |
930 | lw_destroy_all_widgets (info->id); | |
931 | } | |
932 | } | |
933 | ||
934 | void | |
5f61736f RS |
935 | lw_destroy_all_widgets (id) |
936 | LWLIB_ID id; | |
07bf635f RS |
937 | { |
938 | widget_info* info = get_widget_info (id, True); | |
939 | widget_instance* instance; | |
940 | widget_instance* next; | |
941 | ||
942 | if (info) | |
943 | { | |
944 | for (instance = info->instances; instance; ) | |
945 | { | |
946 | next = instance->next; | |
947 | destroy_one_instance (instance); | |
948 | instance = next; | |
949 | } | |
950 | free_widget_info (info); | |
951 | } | |
952 | } | |
953 | ||
954 | void | |
955 | lw_destroy_everything () | |
956 | { | |
957 | while (all_widget_info) | |
958 | lw_destroy_all_widgets (all_widget_info->id); | |
959 | } | |
960 | ||
961 | void | |
962 | lw_destroy_all_pop_ups () | |
963 | { | |
964 | widget_info* info; | |
965 | widget_info* next; | |
966 | widget_instance* instance; | |
967 | ||
968 | for (info = all_widget_info; info; info = next) | |
969 | { | |
970 | next = info->next; | |
971 | instance = info->instances; | |
972 | if (instance && instance->pop_up_p) | |
973 | lw_destroy_all_widgets (info->id); | |
974 | } | |
975 | } | |
976 | ||
977 | #ifdef USE_MOTIF | |
978 | extern Widget first_child (Widget); /* garbage */ | |
979 | #endif | |
980 | ||
981 | Widget | |
982 | lw_raise_all_pop_up_widgets () | |
983 | { | |
984 | widget_info* info; | |
985 | widget_instance* instance; | |
986 | Widget result = NULL; | |
987 | ||
988 | for (info = all_widget_info; info; info = info->next) | |
989 | for (instance = info->instances; instance; instance = instance->next) | |
990 | if (instance->pop_up_p) | |
991 | { | |
992 | Widget widget = instance->widget; | |
993 | if (widget) | |
994 | { | |
995 | if (XtIsManaged (widget) | |
996 | #ifdef USE_MOTIF | |
997 | /* What a complete load of crap!!!! | |
998 | When a dialogShell is on the screen, it is not managed! | |
999 | */ | |
1000 | || (lw_motif_widget_p (instance->widget) && | |
1001 | XtIsManaged (first_child (widget))) | |
1002 | #endif | |
1003 | ) | |
1004 | { | |
1005 | if (!result) | |
1006 | result = widget; | |
1007 | XMapRaised (XtDisplay (widget), XtWindow (widget)); | |
1008 | } | |
1009 | } | |
1010 | } | |
1011 | return result; | |
1012 | } | |
1013 | ||
1014 | static void | |
5f61736f RS |
1015 | lw_pop_all_widgets (id, up) |
1016 | LWLIB_ID id; | |
1017 | Boolean up; | |
07bf635f RS |
1018 | { |
1019 | widget_info* info = get_widget_info (id, False); | |
1020 | widget_instance* instance; | |
1021 | ||
1022 | if (info) | |
1023 | for (instance = info->instances; instance; instance = instance->next) | |
1024 | if (instance->pop_up_p && instance->widget) | |
1025 | { | |
07bf635f RS |
1026 | #if defined (USE_LUCID) |
1027 | if (lw_lucid_widget_p (instance->widget)) | |
9331cca8 FP |
1028 | { |
1029 | XtRealizeWidget (instance->widget); | |
1030 | xlw_pop_instance (instance, up); | |
1031 | } | |
07bf635f RS |
1032 | #endif |
1033 | #if defined (USE_MOTIF) | |
1034 | if (lw_motif_widget_p (instance->widget)) | |
9331cca8 FP |
1035 | { |
1036 | XtRealizeWidget (instance->widget); | |
1037 | xm_pop_instance (instance, up); | |
1038 | } | |
07bf635f RS |
1039 | #endif |
1040 | #if defined (USE_OLIT) | |
1041 | if (lw_olit_widget_p (instance->widget)) | |
9331cca8 FP |
1042 | { |
1043 | XtRealizeWidget (instance->widget); | |
1044 | xol_pop_instance (instance, up); | |
1045 | } | |
1046 | #endif | |
1047 | #if defined (USE_XAW) | |
1048 | if (lw_xaw_widget_p (instance->widget)) | |
1049 | { | |
1050 | XtRealizeWidget (XtParent (instance->widget)); | |
1051 | XtRealizeWidget (instance->widget); | |
1052 | xaw_pop_instance (instance, up); | |
1053 | } | |
07bf635f RS |
1054 | #endif |
1055 | } | |
1056 | } | |
1057 | ||
1058 | void | |
5f61736f RS |
1059 | lw_pop_up_all_widgets (id) |
1060 | LWLIB_ID id; | |
07bf635f RS |
1061 | { |
1062 | lw_pop_all_widgets (id, True); | |
1063 | } | |
1064 | ||
1065 | void | |
5f61736f RS |
1066 | lw_pop_down_all_widgets (id) |
1067 | LWLIB_ID id; | |
07bf635f RS |
1068 | { |
1069 | lw_pop_all_widgets (id, False); | |
1070 | } | |
1071 | ||
1072 | void | |
5f61736f RS |
1073 | lw_popup_menu (widget) |
1074 | Widget widget; | |
07bf635f RS |
1075 | { |
1076 | #if defined (USE_LUCID) | |
1077 | if (lw_lucid_widget_p (widget)) | |
1078 | xlw_popup_menu (widget); | |
1079 | #endif | |
1080 | #if defined (USE_MOTIF) | |
1081 | if (lw_motif_widget_p (widget)) | |
1082 | xm_popup_menu (widget); | |
1083 | #endif | |
1084 | #if defined (USE_OLIT) | |
1085 | if (lw_olit_widget_p (widget)) | |
1086 | xol_popup_menu (widget); | |
1087 | #endif | |
9331cca8 FP |
1088 | #if defined (USE_XAW) |
1089 | if (lw_xaw_widget_p (widget)) | |
1090 | xaw_popup_menu (widget); | |
1091 | #endif | |
07bf635f RS |
1092 | } |
1093 | ||
1094 | \f/* get the values back */ | |
1095 | static Boolean | |
5f61736f RS |
1096 | get_one_value (instance, val) |
1097 | widget_instance* instance; | |
1098 | widget_value* val; | |
07bf635f RS |
1099 | { |
1100 | Widget widget = name_to_widget (instance, val->name); | |
1101 | ||
1102 | if (widget) | |
1103 | { | |
1104 | #if defined (USE_LUCID) | |
1105 | if (lw_lucid_widget_p (instance->widget)) | |
1106 | xlw_update_one_value (instance, widget, val); | |
1107 | #endif | |
1108 | #if defined (USE_MOTIF) | |
1109 | if (lw_motif_widget_p (instance->widget)) | |
1110 | xm_update_one_value (instance, widget, val); | |
1111 | #endif | |
1112 | #if defined (USE_OLIT) | |
1113 | if (lw_olit_widget_p (instance->widget)) | |
1114 | xol_update_one_value (instance, widget, val); | |
9331cca8 FP |
1115 | #endif |
1116 | #if defined (USE_XAW) | |
1117 | if (lw_xaw_widget_p (instance->widget)) | |
1118 | xaw_update_one_value (instance, widget, val); | |
07bf635f RS |
1119 | #endif |
1120 | return True; | |
1121 | } | |
1122 | else | |
1123 | return False; | |
1124 | } | |
1125 | ||
1126 | Boolean | |
5f61736f RS |
1127 | lw_get_some_values (id, val_out) |
1128 | LWLIB_ID id; | |
1129 | widget_value* val_out; | |
07bf635f RS |
1130 | { |
1131 | widget_info* info = get_widget_info (id, False); | |
1132 | widget_instance* instance; | |
1133 | widget_value* val; | |
1134 | Boolean result = False; | |
1135 | ||
1136 | if (!info) | |
1137 | return False; | |
1138 | ||
1139 | instance = info->instances; | |
1140 | if (!instance) | |
1141 | return False; | |
1142 | ||
1143 | for (val = val_out; val; val = val->next) | |
1144 | if (get_one_value (instance, val)) | |
1145 | result = True; | |
1146 | ||
1147 | return result; | |
1148 | } | |
1149 | ||
1150 | widget_value* | |
5f61736f RS |
1151 | lw_get_all_values (id) |
1152 | LWLIB_ID id; | |
07bf635f RS |
1153 | { |
1154 | widget_info* info = get_widget_info (id, False); | |
1155 | widget_value* val = info->val; | |
1156 | if (lw_get_some_values (id, val)) | |
1157 | return val; | |
1158 | else | |
1159 | return NULL; | |
1160 | } | |
1161 | ||
1162 | /* internal function used by the library dependent implementation to get the | |
1163 | widget_value for a given widget in an instance */ | |
1164 | widget_value* | |
5f61736f RS |
1165 | lw_get_widget_value_for_widget (instance, w) |
1166 | widget_instance* instance; | |
1167 | Widget w; | |
07bf635f RS |
1168 | { |
1169 | char* name = XtName (w); | |
1170 | widget_value* cur; | |
1171 | for (cur = instance->info->val; cur; cur = cur->next) | |
1172 | if (!strcmp (cur->name, name)) | |
1173 | return cur; | |
1174 | return NULL; | |
1175 | } | |
1176 | ||
1177 | \f/* update other instances value when one thing changed */ | |
1178 | /* This function can be used as a an XtCallback for the widgets that get | |
1179 | modified to update other instances of the widgets. Closure should be the | |
1180 | widget_instance. */ | |
1181 | void | |
5f61736f RS |
1182 | lw_internal_update_other_instances (widget, closure, call_data) |
1183 | Widget widget; | |
1184 | XtPointer closure; | |
1185 | XtPointer call_data; | |
07bf635f RS |
1186 | { |
1187 | /* To forbid recursive calls */ | |
1188 | static Boolean updating; | |
1189 | ||
1190 | widget_instance* instance = (widget_instance*)closure; | |
1191 | char* name = XtName (widget); | |
1192 | widget_info* info; | |
1193 | widget_instance* cur; | |
1194 | widget_value* val; | |
1195 | ||
1196 | /* never recurse as this could cause infinite recursions. */ | |
1197 | if (updating) | |
1198 | return; | |
1199 | ||
1200 | /* protect against the widget being destroyed */ | |
1201 | if (XtWidgetBeingDestroyedP (widget)) | |
1202 | return; | |
1203 | ||
1204 | /* Return immediately if there are no other instances */ | |
1205 | info = instance->info; | |
1206 | if (!info->instances->next) | |
1207 | return; | |
1208 | ||
1209 | updating = True; | |
1210 | ||
1211 | for (val = info->val; val && strcmp (val->name, name); val = val->next); | |
1212 | ||
1213 | if (val && get_one_value (instance, val)) | |
1214 | for (cur = info->instances; cur; cur = cur->next) | |
1215 | if (cur != instance) | |
1216 | set_one_value (cur, val, True); | |
1217 | ||
1218 | updating = False; | |
1219 | } | |
1220 | ||
1221 | ||
1222 | \f/* get the id */ | |
1223 | ||
1224 | LWLIB_ID | |
5f61736f RS |
1225 | lw_get_widget_id (w) |
1226 | Widget w; | |
07bf635f RS |
1227 | { |
1228 | widget_instance* instance = get_widget_instance (w, False); | |
1229 | ||
1230 | return instance ? instance->info->id : 0; | |
1231 | } | |
1232 | ||
1233 | \f/* set the keyboard focus */ | |
1234 | void | |
5f61736f RS |
1235 | lw_set_keyboard_focus (parent, w) |
1236 | Widget parent; | |
1237 | Widget w; | |
07bf635f RS |
1238 | { |
1239 | #if defined (USE_MOTIF) | |
1240 | xm_set_keyboard_focus (parent, w); | |
1241 | #else | |
1242 | XtSetKeyboardFocus (parent, w); | |
1243 | #endif | |
1244 | } | |
1245 | ||
1246 | \f/* Show busy */ | |
1247 | static void | |
5f61736f RS |
1248 | show_one_widget_busy (w, flag) |
1249 | Widget w; | |
1250 | Boolean flag; | |
07bf635f RS |
1251 | { |
1252 | Pixel foreground = 0; | |
1253 | Pixel background = 1; | |
1254 | Widget widget_to_invert = XtNameToWidget (w, "*sheet"); | |
1255 | if (!widget_to_invert) | |
1256 | widget_to_invert = w; | |
1257 | ||
1258 | XtVaGetValues (widget_to_invert, | |
1259 | XtNforeground, &foreground, | |
1260 | XtNbackground, &background, | |
1261 | 0); | |
1262 | XtVaSetValues (widget_to_invert, | |
1263 | XtNforeground, background, | |
1264 | XtNbackground, foreground, | |
1265 | 0); | |
1266 | } | |
1267 | ||
1268 | void | |
5f61736f RS |
1269 | lw_show_busy (w, busy) |
1270 | Widget w; | |
1271 | Boolean busy; | |
07bf635f RS |
1272 | { |
1273 | widget_instance* instance = get_widget_instance (w, False); | |
1274 | widget_info* info; | |
1275 | widget_instance* next; | |
1276 | ||
1277 | if (instance) | |
1278 | { | |
1279 | info = instance->info; | |
1280 | if (info->busy != busy) | |
1281 | { | |
1282 | for (next = info->instances; next; next = next->next) | |
1283 | if (next->widget) | |
1284 | show_one_widget_busy (next->widget, busy); | |
1285 | info->busy = busy; | |
1286 | } | |
1287 | } | |
1288 | } |