| 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 <sys/types.h> |
| 25 | #include <stdio.h> |
| 26 | #include <ctype.h> |
| 27 | #include "lwlib-int.h" |
| 28 | #include "lwlib-utils.h" |
| 29 | #include <X11/StringDefs.h> |
| 30 | |
| 31 | #ifdef __osf__ |
| 32 | #include <string.h> |
| 33 | #include <stdlib.h> |
| 34 | extern long *xmalloc(); |
| 35 | #endif |
| 36 | |
| 37 | #if defined (USE_LUCID) |
| 38 | #include "lwlib-Xlw.h" |
| 39 | #endif |
| 40 | #if defined (USE_MOTIF) |
| 41 | #include "lwlib-Xm.h" |
| 42 | #else /* not USE_MOTIF */ |
| 43 | #if defined (USE_LUCID) |
| 44 | #define USE_XAW |
| 45 | #endif /* not USE_MOTIF && USE_LUCID */ |
| 46 | #endif |
| 47 | #if defined (USE_OLIT) |
| 48 | #include "lwlib-Xol.h" |
| 49 | #endif |
| 50 | #if defined (USE_XAW) |
| 51 | #include "lwlib-Xaw.h" |
| 52 | #endif |
| 53 | |
| 54 | #if !defined (USE_LUCID) && !defined (USE_MOTIF) && !defined (USE_OLIT) |
| 55 | ERROR! At least one of USE_LUCID, USE_MOTIF or USE_OLIT must be defined. |
| 56 | #endif |
| 57 | |
| 58 | #if defined (USE_MOTIF) && defined (USE_OLIT) |
| 59 | ERROR! no more than one of USE_MOTIF and USE_OLIT may be defined. |
| 60 | #endif |
| 61 | |
| 62 | #ifndef max |
| 63 | #define max(x, y) ((x) > (y) ? (x) : (y)) |
| 64 | #endif |
| 65 | |
| 66 | /* List of all widgets managed by the library. */ |
| 67 | static widget_info* |
| 68 | all_widget_info = NULL; |
| 69 | |
| 70 | #ifdef USE_MOTIF |
| 71 | char *lwlib_toolkit_type = "motif"; |
| 72 | #else |
| 73 | char *lwlib_toolkit_type = "lucid"; |
| 74 | #endif |
| 75 | \f/* Forward declarations */ |
| 76 | static void |
| 77 | instanciate_widget_instance (/* widget_instance* instance */); |
| 78 | |
| 79 | lwlib_memset (address, value, length) |
| 80 | char *address; |
| 81 | int value; |
| 82 | int length; |
| 83 | { |
| 84 | int i; |
| 85 | |
| 86 | for (i = 0; i < length; i++) |
| 87 | address[i] = value; |
| 88 | } |
| 89 | |
| 90 | lwlib_bcopy (from, to, length) |
| 91 | char *from; |
| 92 | char *to; |
| 93 | int length; |
| 94 | { |
| 95 | int i; |
| 96 | |
| 97 | for (i = 0; i < length; i++) |
| 98 | to[i] = from[i]; |
| 99 | } |
| 100 | \f/* utility functions for widget_instance and widget_info */ |
| 101 | char * |
| 102 | safe_strdup (s) |
| 103 | char *s; |
| 104 | { |
| 105 | char *result; |
| 106 | if (! s) return 0; |
| 107 | result = (char *) malloc (strlen (s) + 1); |
| 108 | if (! result) |
| 109 | return 0; |
| 110 | strcpy (result, s); |
| 111 | return result; |
| 112 | } |
| 113 | |
| 114 | /* Like strcmp but ignore differences in case. */ |
| 115 | |
| 116 | static int |
| 117 | my_strcasecmp (s1, s2) |
| 118 | char *s1, *s2; |
| 119 | { |
| 120 | while (1) |
| 121 | { |
| 122 | int c1 = *s1++; |
| 123 | int c2 = *s2++; |
| 124 | if (isupper (c1)) |
| 125 | c1 = tolower (c1); |
| 126 | if (isupper (c2)) |
| 127 | c2 = tolower (c2); |
| 128 | if (c1 != c2) |
| 129 | return (c1 > c2 ? 1 : -1); |
| 130 | if (c1 == 0) |
| 131 | return 0; |
| 132 | } |
| 133 | } |
| 134 | |
| 135 | static void |
| 136 | safe_free_str (s) |
| 137 | char *s; |
| 138 | { |
| 139 | if (s) free (s); |
| 140 | } |
| 141 | |
| 142 | static widget_value *widget_value_free_list = 0; |
| 143 | static int malloc_cpt = 0; |
| 144 | |
| 145 | widget_value * |
| 146 | malloc_widget_value () |
| 147 | { |
| 148 | widget_value *wv; |
| 149 | if (widget_value_free_list) |
| 150 | { |
| 151 | wv = widget_value_free_list; |
| 152 | widget_value_free_list = wv->free_list; |
| 153 | wv->free_list = 0; |
| 154 | } |
| 155 | else |
| 156 | { |
| 157 | wv = (widget_value *) malloc (sizeof (widget_value)); |
| 158 | malloc_cpt++; |
| 159 | } |
| 160 | lwlib_memset (wv, 0, sizeof (widget_value)); |
| 161 | return wv; |
| 162 | } |
| 163 | |
| 164 | /* this is analagous to free(). It frees only what was allocated |
| 165 | by malloc_widget_value(), and no substructures. |
| 166 | */ |
| 167 | void |
| 168 | free_widget_value (wv) |
| 169 | widget_value *wv; |
| 170 | { |
| 171 | if (wv->free_list) |
| 172 | abort (); |
| 173 | |
| 174 | if (malloc_cpt > 25) |
| 175 | { |
| 176 | /* When the number of already allocated cells is too big, |
| 177 | We free it. */ |
| 178 | free (wv); |
| 179 | malloc_cpt--; |
| 180 | } |
| 181 | else |
| 182 | { |
| 183 | wv->free_list = widget_value_free_list; |
| 184 | widget_value_free_list = wv; |
| 185 | } |
| 186 | } |
| 187 | |
| 188 | static void |
| 189 | free_widget_value_tree (wv) |
| 190 | widget_value *wv; |
| 191 | { |
| 192 | if (!wv) |
| 193 | return; |
| 194 | |
| 195 | if (wv->name) free (wv->name); |
| 196 | if (wv->value) free (wv->value); |
| 197 | if (wv->key) free (wv->key); |
| 198 | |
| 199 | wv->name = wv->value = wv->key = (char *) 0xDEADBEEF; |
| 200 | |
| 201 | if (wv->toolkit_data && wv->free_toolkit_data) |
| 202 | { |
| 203 | free (wv->toolkit_data); |
| 204 | wv->toolkit_data = (void *) 0xDEADBEEF; |
| 205 | } |
| 206 | |
| 207 | if (wv->contents && (wv->contents != (widget_value*)1)) |
| 208 | { |
| 209 | free_widget_value_tree (wv->contents); |
| 210 | wv->contents = (widget_value *) 0xDEADBEEF; |
| 211 | } |
| 212 | if (wv->next) |
| 213 | { |
| 214 | free_widget_value_tree (wv->next); |
| 215 | wv->next = (widget_value *) 0xDEADBEEF; |
| 216 | } |
| 217 | free_widget_value (wv); |
| 218 | } |
| 219 | |
| 220 | static widget_value * |
| 221 | copy_widget_value_tree (val, change) |
| 222 | widget_value* val; |
| 223 | change_type change; |
| 224 | { |
| 225 | widget_value* copy; |
| 226 | |
| 227 | if (!val) |
| 228 | return NULL; |
| 229 | if (val == (widget_value *) 1) |
| 230 | return val; |
| 231 | |
| 232 | copy = malloc_widget_value (); |
| 233 | copy->name = safe_strdup (val->name); |
| 234 | copy->value = safe_strdup (val->value); |
| 235 | copy->key = safe_strdup (val->key); |
| 236 | copy->enabled = val->enabled; |
| 237 | copy->selected = val->selected; |
| 238 | copy->edited = False; |
| 239 | copy->change = change; |
| 240 | copy->contents = copy_widget_value_tree (val->contents, change); |
| 241 | copy->call_data = val->call_data; |
| 242 | copy->next = copy_widget_value_tree (val->next, change); |
| 243 | copy->toolkit_data = NULL; |
| 244 | copy->free_toolkit_data = False; |
| 245 | return copy; |
| 246 | } |
| 247 | |
| 248 | static widget_info * |
| 249 | allocate_widget_info (type, name, id, val, pre_activate_cb, selection_cb, post_activate_cb) |
| 250 | char* type; |
| 251 | char* name; |
| 252 | LWLIB_ID id; |
| 253 | widget_value* val; |
| 254 | lw_callback pre_activate_cb; |
| 255 | lw_callback selection_cb; |
| 256 | lw_callback post_activate_cb; |
| 257 | { |
| 258 | widget_info* info = (widget_info*)malloc (sizeof (widget_info)); |
| 259 | info->type = safe_strdup (type); |
| 260 | info->name = safe_strdup (name); |
| 261 | info->id = id; |
| 262 | info->val = copy_widget_value_tree (val, STRUCTURAL_CHANGE); |
| 263 | info->busy = False; |
| 264 | info->pre_activate_cb = pre_activate_cb; |
| 265 | info->selection_cb = selection_cb; |
| 266 | info->post_activate_cb = post_activate_cb; |
| 267 | info->instances = NULL; |
| 268 | |
| 269 | info->next = all_widget_info; |
| 270 | all_widget_info = info; |
| 271 | |
| 272 | return info; |
| 273 | } |
| 274 | |
| 275 | static void |
| 276 | free_widget_info (info) |
| 277 | widget_info* info; |
| 278 | { |
| 279 | safe_free_str (info->type); |
| 280 | safe_free_str (info->name); |
| 281 | free_widget_value_tree (info->val); |
| 282 | lwlib_memset ((void*)info, 0xDEADBEEF, sizeof (widget_info)); |
| 283 | free (info); |
| 284 | } |
| 285 | |
| 286 | static void |
| 287 | mark_widget_destroyed (widget, closure, call_data) |
| 288 | Widget widget; |
| 289 | XtPointer closure; |
| 290 | XtPointer call_data; |
| 291 | { |
| 292 | widget_instance* instance = (widget_instance*)closure; |
| 293 | |
| 294 | /* be very conservative */ |
| 295 | if (instance->widget == widget) |
| 296 | instance->widget = NULL; |
| 297 | } |
| 298 | |
| 299 | static widget_instance * |
| 300 | allocate_widget_instance (info, parent, pop_up_p) |
| 301 | widget_info* info; |
| 302 | Widget parent; |
| 303 | Boolean pop_up_p; |
| 304 | { |
| 305 | widget_instance* instance = |
| 306 | (widget_instance*)malloc (sizeof (widget_instance)); |
| 307 | instance->parent = parent; |
| 308 | instance->pop_up_p = pop_up_p; |
| 309 | instance->info = info; |
| 310 | instance->next = info->instances; |
| 311 | info->instances = instance; |
| 312 | |
| 313 | instanciate_widget_instance (instance); |
| 314 | |
| 315 | XtAddCallback (instance->widget, XtNdestroyCallback, |
| 316 | mark_widget_destroyed, (XtPointer)instance); |
| 317 | return instance; |
| 318 | } |
| 319 | |
| 320 | static void |
| 321 | free_widget_instance (instance) |
| 322 | widget_instance* instance; |
| 323 | { |
| 324 | lwlib_memset ((void*)instance, 0xDEADBEEF, sizeof (widget_instance)); |
| 325 | free (instance); |
| 326 | } |
| 327 | |
| 328 | static widget_info * |
| 329 | get_widget_info (id, remove_p) |
| 330 | LWLIB_ID id; |
| 331 | Boolean remove_p; |
| 332 | { |
| 333 | widget_info* info; |
| 334 | widget_info* prev; |
| 335 | for (prev = NULL, info = all_widget_info; |
| 336 | info; |
| 337 | prev = info, info = info->next) |
| 338 | if (info->id == id) |
| 339 | { |
| 340 | if (remove_p) |
| 341 | { |
| 342 | if (prev) |
| 343 | prev->next = info->next; |
| 344 | else |
| 345 | all_widget_info = info->next; |
| 346 | } |
| 347 | return info; |
| 348 | } |
| 349 | return NULL; |
| 350 | } |
| 351 | |
| 352 | /* Internal function used by the library dependent implementation to get the |
| 353 | widget_value for a given widget in an instance */ |
| 354 | widget_info * |
| 355 | lw_get_widget_info (id) |
| 356 | LWLIB_ID id; |
| 357 | { |
| 358 | return get_widget_info (id, 0); |
| 359 | } |
| 360 | |
| 361 | static widget_instance * |
| 362 | get_widget_instance (widget, remove_p) |
| 363 | Widget widget; |
| 364 | Boolean remove_p; |
| 365 | { |
| 366 | widget_info* info; |
| 367 | widget_instance* instance; |
| 368 | widget_instance* prev; |
| 369 | for (info = all_widget_info; info; info = info->next) |
| 370 | for (prev = NULL, instance = info->instances; |
| 371 | instance; |
| 372 | prev = instance, instance = instance->next) |
| 373 | if (instance->widget == widget) |
| 374 | { |
| 375 | if (remove_p) |
| 376 | { |
| 377 | if (prev) |
| 378 | prev->next = instance->next; |
| 379 | else |
| 380 | info->instances = instance->next; |
| 381 | } |
| 382 | return instance; |
| 383 | } |
| 384 | return (widget_instance *) 0; |
| 385 | } |
| 386 | |
| 387 | static widget_instance* |
| 388 | find_instance (id, parent, pop_up_p) |
| 389 | LWLIB_ID id; |
| 390 | Widget parent; |
| 391 | Boolean pop_up_p; |
| 392 | { |
| 393 | widget_info* info = get_widget_info (id, False); |
| 394 | widget_instance* instance; |
| 395 | |
| 396 | if (info) |
| 397 | for (instance = info->instances; instance; instance = instance->next) |
| 398 | if (instance->parent == parent && instance->pop_up_p == pop_up_p) |
| 399 | return instance; |
| 400 | |
| 401 | return NULL; |
| 402 | } |
| 403 | |
| 404 | \f |
| 405 | /* utility function for widget_value */ |
| 406 | static Boolean |
| 407 | safe_strcmp (s1, s2) |
| 408 | char* s1; |
| 409 | char* s2; |
| 410 | { |
| 411 | if (!!s1 ^ !!s2) return True; |
| 412 | return (s1 && s2) ? strcmp (s1, s2) : s1 ? False : !!s2; |
| 413 | } |
| 414 | |
| 415 | |
| 416 | #if 0 |
| 417 | # define EXPLAIN(name, oc, nc, desc, a1, a2) \ |
| 418 | printf ("Change: \"%s\"\tmax(%s=%d,%s=%d)\t%s %d %d\n", \ |
| 419 | name, \ |
| 420 | (oc == NO_CHANGE ? "none" : \ |
| 421 | (oc == INVISIBLE_CHANGE ? "invisible" : \ |
| 422 | (oc == VISIBLE_CHANGE ? "visible" : \ |
| 423 | (oc == STRUCTURAL_CHANGE ? "structural" : "???")))), \ |
| 424 | oc, \ |
| 425 | (nc == NO_CHANGE ? "none" : \ |
| 426 | (nc == INVISIBLE_CHANGE ? "invisible" : \ |
| 427 | (nc == VISIBLE_CHANGE ? "visible" : \ |
| 428 | (nc == STRUCTURAL_CHANGE ? "structural" : "???")))), \ |
| 429 | nc, desc, a1, a2) |
| 430 | #else |
| 431 | # define EXPLAIN(name, oc, nc, desc, a1, a2) |
| 432 | #endif |
| 433 | |
| 434 | |
| 435 | static widget_value * |
| 436 | merge_widget_value (val1, val2, level) |
| 437 | widget_value* val1; |
| 438 | widget_value* val2; |
| 439 | int level; |
| 440 | { |
| 441 | change_type change; |
| 442 | widget_value* merged_next; |
| 443 | widget_value* merged_contents; |
| 444 | |
| 445 | if (!val1) |
| 446 | { |
| 447 | if (val2) |
| 448 | return copy_widget_value_tree (val2, STRUCTURAL_CHANGE); |
| 449 | else |
| 450 | return NULL; |
| 451 | } |
| 452 | if (!val2) |
| 453 | { |
| 454 | free_widget_value_tree (val1); |
| 455 | return NULL; |
| 456 | } |
| 457 | |
| 458 | change = NO_CHANGE; |
| 459 | |
| 460 | if (safe_strcmp (val1->name, val2->name)) |
| 461 | { |
| 462 | EXPLAIN (val1->name, change, STRUCTURAL_CHANGE, "name change", |
| 463 | val1->name, val2->name); |
| 464 | change = max (change, STRUCTURAL_CHANGE); |
| 465 | safe_free_str (val1->name); |
| 466 | val1->name = safe_strdup (val2->name); |
| 467 | } |
| 468 | if (safe_strcmp (val1->value, val2->value)) |
| 469 | { |
| 470 | EXPLAIN (val1->name, change, VISIBLE_CHANGE, "value change", |
| 471 | val1->value, val2->value); |
| 472 | change = max (change, VISIBLE_CHANGE); |
| 473 | safe_free_str (val1->value); |
| 474 | val1->value = safe_strdup (val2->value); |
| 475 | } |
| 476 | if (safe_strcmp (val1->key, val2->key)) |
| 477 | { |
| 478 | EXPLAIN (val1->name, change, VISIBLE_CHANGE, "key change", |
| 479 | val1->key, val2->key); |
| 480 | change = max (change, VISIBLE_CHANGE); |
| 481 | safe_free_str (val1->key); |
| 482 | val1->key = safe_strdup (val2->key); |
| 483 | } |
| 484 | if (val1->enabled != val2->enabled) |
| 485 | { |
| 486 | EXPLAIN (val1->name, change, VISIBLE_CHANGE, "enablement change", |
| 487 | val1->enabled, val2->enabled); |
| 488 | change = max (change, VISIBLE_CHANGE); |
| 489 | val1->enabled = val2->enabled; |
| 490 | } |
| 491 | if (val1->selected != val2->selected) |
| 492 | { |
| 493 | EXPLAIN (val1->name, change, VISIBLE_CHANGE, "selection change", |
| 494 | val1->selected, val2->selected); |
| 495 | change = max (change, VISIBLE_CHANGE); |
| 496 | val1->selected = val2->selected; |
| 497 | } |
| 498 | if (val1->call_data != val2->call_data) |
| 499 | { |
| 500 | EXPLAIN (val1->name, change, INVISIBLE_CHANGE, "call-data change", |
| 501 | val1->call_data, val2->call_data); |
| 502 | change = max (change, INVISIBLE_CHANGE); |
| 503 | val1->call_data = val2->call_data; |
| 504 | } |
| 505 | |
| 506 | if (level > 0) |
| 507 | { |
| 508 | merged_contents = |
| 509 | merge_widget_value (val1->contents, val2->contents, level - 1); |
| 510 | |
| 511 | if (val1->contents && !merged_contents) |
| 512 | { |
| 513 | EXPLAIN (val1->name, change, INVISIBLE_CHANGE, "(contents gone)", |
| 514 | 0, 0); |
| 515 | change = max (change, INVISIBLE_CHANGE); |
| 516 | } |
| 517 | else if (merged_contents && merged_contents->change != NO_CHANGE) |
| 518 | { |
| 519 | EXPLAIN (val1->name, change, INVISIBLE_CHANGE, "(contents change)", |
| 520 | 0, 0); |
| 521 | change = max (change, INVISIBLE_CHANGE); |
| 522 | } |
| 523 | |
| 524 | val1->contents = merged_contents; |
| 525 | } |
| 526 | |
| 527 | merged_next = merge_widget_value (val1->next, val2->next, level); |
| 528 | |
| 529 | if (val1->next && !merged_next) |
| 530 | { |
| 531 | EXPLAIN (val1->name, change, STRUCTURAL_CHANGE, "(following gone)", |
| 532 | 0, 0); |
| 533 | change = max (change, STRUCTURAL_CHANGE); |
| 534 | } |
| 535 | else if (merged_next) |
| 536 | { |
| 537 | if (merged_next->change) |
| 538 | EXPLAIN (val1->name, change, merged_next->change, "(following change)", |
| 539 | 0, 0); |
| 540 | change = max (change, merged_next->change); |
| 541 | } |
| 542 | |
| 543 | val1->next = merged_next; |
| 544 | |
| 545 | val1->change = change; |
| 546 | |
| 547 | if (change > NO_CHANGE && val1->toolkit_data) |
| 548 | { |
| 549 | if (val1->free_toolkit_data) |
| 550 | free (val1->toolkit_data); |
| 551 | val1->toolkit_data = NULL; |
| 552 | } |
| 553 | |
| 554 | return val1; |
| 555 | } |
| 556 | |
| 557 | \f |
| 558 | /* modifying the widgets */ |
| 559 | static Widget |
| 560 | name_to_widget (instance, name) |
| 561 | widget_instance* instance; |
| 562 | char* name; |
| 563 | { |
| 564 | Widget widget = NULL; |
| 565 | |
| 566 | if (!instance->widget) |
| 567 | return NULL; |
| 568 | |
| 569 | if (!strcmp (XtName (instance->widget), name)) |
| 570 | widget = instance->widget; |
| 571 | else |
| 572 | { |
| 573 | int length = strlen (name) + 2; |
| 574 | char* real_name = (char *) xmalloc (length); |
| 575 | real_name [0] = '*'; |
| 576 | strcpy (real_name + 1, name); |
| 577 | |
| 578 | widget = XtNameToWidget (instance->widget, real_name); |
| 579 | |
| 580 | free (real_name); |
| 581 | } |
| 582 | return widget; |
| 583 | } |
| 584 | |
| 585 | static void |
| 586 | set_one_value (instance, val, deep_p) |
| 587 | widget_instance* instance; |
| 588 | widget_value* val; |
| 589 | Boolean deep_p; |
| 590 | { |
| 591 | Widget widget = name_to_widget (instance, val->name); |
| 592 | |
| 593 | if (widget) |
| 594 | { |
| 595 | #if defined (USE_LUCID) |
| 596 | if (lw_lucid_widget_p (instance->widget)) |
| 597 | xlw_update_one_widget (instance, widget, val, deep_p); |
| 598 | #endif |
| 599 | #if defined (USE_MOTIF) |
| 600 | if (lw_motif_widget_p (instance->widget)) |
| 601 | xm_update_one_widget (instance, widget, val, deep_p); |
| 602 | #endif |
| 603 | #if defined (USE_OLIT) |
| 604 | if (lw_olit_widget_p (instance->widget)) |
| 605 | xol_update_one_widget (instance, widget, val, deep_p); |
| 606 | #endif |
| 607 | #if defined (USE_XAW) |
| 608 | if (lw_xaw_widget_p (instance->widget)) |
| 609 | xaw_update_one_widget (instance, widget, val, deep_p); |
| 610 | #endif |
| 611 | } |
| 612 | } |
| 613 | |
| 614 | static void |
| 615 | update_one_widget_instance (instance, deep_p) |
| 616 | widget_instance* instance; |
| 617 | Boolean deep_p; |
| 618 | { |
| 619 | widget_value *val; |
| 620 | |
| 621 | if (!instance->widget) |
| 622 | /* the widget was destroyed */ |
| 623 | return; |
| 624 | |
| 625 | for (val = instance->info->val; val; val = val->next) |
| 626 | if (val->change != NO_CHANGE) |
| 627 | set_one_value (instance, val, deep_p); |
| 628 | } |
| 629 | |
| 630 | static void |
| 631 | update_all_widget_values (info, deep_p) |
| 632 | widget_info* info; |
| 633 | Boolean deep_p; |
| 634 | { |
| 635 | widget_instance* instance; |
| 636 | widget_value* val; |
| 637 | |
| 638 | for (instance = info->instances; instance; instance = instance->next) |
| 639 | update_one_widget_instance (instance, deep_p); |
| 640 | |
| 641 | for (val = info->val; val; val = val->next) |
| 642 | val->change = NO_CHANGE; |
| 643 | } |
| 644 | |
| 645 | void |
| 646 | lw_modify_all_widgets (id, val, deep_p) |
| 647 | LWLIB_ID id; |
| 648 | widget_value* val; |
| 649 | Boolean deep_p; |
| 650 | { |
| 651 | widget_info* info = get_widget_info (id, False); |
| 652 | widget_value* new_val; |
| 653 | widget_value* next_new_val; |
| 654 | widget_value* cur; |
| 655 | widget_value* prev; |
| 656 | widget_value* next; |
| 657 | int found; |
| 658 | |
| 659 | if (!info) |
| 660 | return; |
| 661 | |
| 662 | for (new_val = val; new_val; new_val = new_val->next) |
| 663 | { |
| 664 | next_new_val = new_val->next; |
| 665 | new_val->next = NULL; |
| 666 | found = False; |
| 667 | for (prev = NULL, cur = info->val; cur; prev = cur, cur = cur->next) |
| 668 | if (!strcmp (cur->name, new_val->name)) |
| 669 | { |
| 670 | found = True; |
| 671 | next = cur->next; |
| 672 | cur->next = NULL; |
| 673 | cur = merge_widget_value (cur, new_val, deep_p ? 1000 : 1); |
| 674 | if (prev) |
| 675 | prev->next = cur ? cur : next; |
| 676 | else |
| 677 | info->val = cur ? cur : next; |
| 678 | if (cur) |
| 679 | cur->next = next; |
| 680 | break; |
| 681 | } |
| 682 | if (!found) |
| 683 | { |
| 684 | /* Could not find it, add it */ |
| 685 | if (prev) |
| 686 | prev->next = copy_widget_value_tree (new_val, STRUCTURAL_CHANGE); |
| 687 | else |
| 688 | info->val = copy_widget_value_tree (new_val, STRUCTURAL_CHANGE); |
| 689 | } |
| 690 | new_val->next = next_new_val; |
| 691 | } |
| 692 | |
| 693 | update_all_widget_values (info, deep_p); |
| 694 | } |
| 695 | |
| 696 | \f |
| 697 | /* creating the widgets */ |
| 698 | |
| 699 | static void |
| 700 | initialize_widget_instance (instance) |
| 701 | widget_instance* instance; |
| 702 | { |
| 703 | widget_value* val; |
| 704 | |
| 705 | for (val = instance->info->val; val; val = val->next) |
| 706 | val->change = STRUCTURAL_CHANGE; |
| 707 | |
| 708 | update_one_widget_instance (instance, True); |
| 709 | |
| 710 | for (val = instance->info->val; val; val = val->next) |
| 711 | val->change = NO_CHANGE; |
| 712 | } |
| 713 | |
| 714 | |
| 715 | static widget_creation_function |
| 716 | find_in_table (type, table) |
| 717 | char* type; |
| 718 | widget_creation_entry* table; |
| 719 | { |
| 720 | widget_creation_entry* cur; |
| 721 | for (cur = table; cur->type; cur++) |
| 722 | if (!my_strcasecmp (type, cur->type)) |
| 723 | return cur->function; |
| 724 | return NULL; |
| 725 | } |
| 726 | |
| 727 | static Boolean |
| 728 | dialog_spec_p (name) |
| 729 | char* name; |
| 730 | { |
| 731 | /* return True if name matches [EILPQeilpq][1-9][Bb] or |
| 732 | [EILPQeilpq][1-9][Bb][Rr][1-9] */ |
| 733 | if (!name) |
| 734 | return False; |
| 735 | |
| 736 | switch (name [0]) |
| 737 | { |
| 738 | case 'E': case 'I': case 'L': case 'P': case 'Q': |
| 739 | case 'e': case 'i': case 'l': case 'p': case 'q': |
| 740 | if (name [1] >= '0' && name [1] <= '9') |
| 741 | { |
| 742 | if (name [2] != 'B' && name [2] != 'b') |
| 743 | return False; |
| 744 | if (!name [3]) |
| 745 | return True; |
| 746 | if ((name [3] == 'T' || name [3] == 't') && !name [4]) |
| 747 | return True; |
| 748 | if ((name [3] == 'R' || name [3] == 'r') |
| 749 | && name [4] >= '0' && name [4] <= '9' && !name [5]) |
| 750 | return True; |
| 751 | return False; |
| 752 | } |
| 753 | else |
| 754 | return False; |
| 755 | |
| 756 | default: |
| 757 | return False; |
| 758 | } |
| 759 | } |
| 760 | |
| 761 | static void |
| 762 | instanciate_widget_instance (instance) |
| 763 | widget_instance* instance; |
| 764 | { |
| 765 | widget_creation_function function = NULL; |
| 766 | |
| 767 | #if defined (USE_LUCID) |
| 768 | if (!function) |
| 769 | function = find_in_table (instance->info->type, xlw_creation_table); |
| 770 | #endif |
| 771 | #if defined(USE_MOTIF) |
| 772 | if (!function) |
| 773 | function = find_in_table (instance->info->type, xm_creation_table); |
| 774 | #endif |
| 775 | #if defined (USE_OLIT) |
| 776 | if (!function) |
| 777 | function = find_in_table (instance->info->type, xol_creation_table); |
| 778 | #endif |
| 779 | #if defined (USE_XAW) |
| 780 | if (!function) |
| 781 | function = find_in_table (instance->info->type, xaw_creation_table); |
| 782 | #endif |
| 783 | |
| 784 | if (!function) |
| 785 | { |
| 786 | if (dialog_spec_p (instance->info->type)) |
| 787 | { |
| 788 | #if defined (USE_LUCID) |
| 789 | /* not yet */ |
| 790 | #endif |
| 791 | #if defined(USE_MOTIF) |
| 792 | if (!function) |
| 793 | function = xm_create_dialog; |
| 794 | #endif |
| 795 | #if defined (USE_XAW) |
| 796 | if (!function) |
| 797 | function = xaw_create_dialog; |
| 798 | #endif |
| 799 | #if defined (USE_OLIT) |
| 800 | /* not yet */ |
| 801 | #endif |
| 802 | } |
| 803 | } |
| 804 | |
| 805 | if (!function) |
| 806 | { |
| 807 | printf ("No creation function for widget type %s\n", |
| 808 | instance->info->type); |
| 809 | abort (); |
| 810 | } |
| 811 | |
| 812 | instance->widget = (*function) (instance); |
| 813 | |
| 814 | if (!instance->widget) |
| 815 | abort (); |
| 816 | |
| 817 | /* XtRealizeWidget (instance->widget);*/ |
| 818 | } |
| 819 | |
| 820 | void |
| 821 | lw_register_widget (type, name, id, val, pre_activate_cb, selection_cb, post_activate_cb) |
| 822 | char* type; |
| 823 | char* name; |
| 824 | LWLIB_ID id; |
| 825 | widget_value* val; |
| 826 | lw_callback pre_activate_cb; |
| 827 | lw_callback selection_cb; |
| 828 | lw_callback post_activate_cb; |
| 829 | { |
| 830 | if (!get_widget_info (id, False)) |
| 831 | allocate_widget_info (type, name, id, val, pre_activate_cb, selection_cb, |
| 832 | post_activate_cb); |
| 833 | } |
| 834 | |
| 835 | Widget |
| 836 | lw_get_widget (id, parent, pop_up_p) |
| 837 | LWLIB_ID id; |
| 838 | Widget parent; |
| 839 | Boolean pop_up_p; |
| 840 | { |
| 841 | widget_instance* instance; |
| 842 | |
| 843 | instance = find_instance (id, parent, pop_up_p); |
| 844 | return instance ? instance->widget : NULL; |
| 845 | } |
| 846 | |
| 847 | Widget |
| 848 | lw_make_widget (id, parent, pop_up_p) |
| 849 | LWLIB_ID id; |
| 850 | Widget parent; |
| 851 | Boolean pop_up_p; |
| 852 | { |
| 853 | widget_instance* instance; |
| 854 | widget_info* info; |
| 855 | |
| 856 | instance = find_instance (id, parent, pop_up_p); |
| 857 | if (!instance) |
| 858 | { |
| 859 | info = get_widget_info (id, False); |
| 860 | if (!info) |
| 861 | return NULL; |
| 862 | instance = allocate_widget_instance (info, parent, pop_up_p); |
| 863 | initialize_widget_instance (instance); |
| 864 | } |
| 865 | if (!instance->widget) |
| 866 | abort (); |
| 867 | return instance->widget; |
| 868 | } |
| 869 | |
| 870 | Widget |
| 871 | lw_create_widget (type, name, id, val, parent, pop_up_p, pre_activate_cb, selection_cb, post_activate_cb) |
| 872 | char* type; |
| 873 | char* name; |
| 874 | LWLIB_ID id; |
| 875 | widget_value* val; |
| 876 | Widget parent; |
| 877 | Boolean pop_up_p; |
| 878 | lw_callback pre_activate_cb; |
| 879 | lw_callback selection_cb; |
| 880 | lw_callback post_activate_cb; |
| 881 | { |
| 882 | lw_register_widget (type, name, id, val, pre_activate_cb, selection_cb, |
| 883 | post_activate_cb); |
| 884 | return lw_make_widget (id, parent, pop_up_p); |
| 885 | } |
| 886 | |
| 887 | \f |
| 888 | /* destroying the widgets */ |
| 889 | static void |
| 890 | destroy_one_instance (instance) |
| 891 | widget_instance* instance; |
| 892 | { |
| 893 | /* Remove the destroy callback on the widget; that callback will try to |
| 894 | dereference the instance object (to set its widget slot to 0, since the |
| 895 | widget is dead.) Since the instance is now dead, we don't have to worry |
| 896 | about the fact that its widget is dead too. |
| 897 | |
| 898 | This happens in the Phase2Destroy of the widget, so this callback would |
| 899 | not have been run until arbitrarily long after the instance was freed. |
| 900 | */ |
| 901 | if (instance->widget) |
| 902 | XtRemoveCallback (instance->widget, XtNdestroyCallback, |
| 903 | mark_widget_destroyed, (XtPointer)instance); |
| 904 | |
| 905 | if (instance->widget) |
| 906 | { |
| 907 | /* The else are pretty tricky here, including the empty statement |
| 908 | at the end because it would be very bad to destroy a widget |
| 909 | twice. */ |
| 910 | #if defined (USE_LUCID) |
| 911 | if (lw_lucid_widget_p (instance->widget)) |
| 912 | xlw_destroy_instance (instance); |
| 913 | else |
| 914 | #endif |
| 915 | #if defined (USE_MOTIF) |
| 916 | if (lw_motif_widget_p (instance->widget)) |
| 917 | xm_destroy_instance (instance); |
| 918 | else |
| 919 | #endif |
| 920 | #if defined (USE_OLIT) |
| 921 | if (lw_olit_widget_p (instance->widget)) |
| 922 | xol_destroy_instance (instance); |
| 923 | else |
| 924 | #endif |
| 925 | #if defined (USE_XAW) |
| 926 | if (lw_xaw_widget_p (instance->widget)) |
| 927 | xaw_destroy_instance (instance); |
| 928 | else |
| 929 | #endif |
| 930 | /* do not remove the empty statement */ |
| 931 | ; |
| 932 | } |
| 933 | |
| 934 | free_widget_instance (instance); |
| 935 | } |
| 936 | |
| 937 | void |
| 938 | lw_destroy_widget (w) |
| 939 | Widget w; |
| 940 | { |
| 941 | widget_instance* instance = get_widget_instance (w, True); |
| 942 | |
| 943 | if (instance) |
| 944 | { |
| 945 | widget_info *info = instance->info; |
| 946 | /* instance has already been removed from the list; free it */ |
| 947 | destroy_one_instance (instance); |
| 948 | /* if there are no instances left, free the info too */ |
| 949 | if (!info->instances) |
| 950 | lw_destroy_all_widgets (info->id); |
| 951 | } |
| 952 | } |
| 953 | |
| 954 | void |
| 955 | lw_destroy_all_widgets (id) |
| 956 | LWLIB_ID id; |
| 957 | { |
| 958 | widget_info* info = get_widget_info (id, True); |
| 959 | widget_instance* instance; |
| 960 | widget_instance* next; |
| 961 | |
| 962 | if (info) |
| 963 | { |
| 964 | for (instance = info->instances; instance; ) |
| 965 | { |
| 966 | next = instance->next; |
| 967 | destroy_one_instance (instance); |
| 968 | instance = next; |
| 969 | } |
| 970 | free_widget_info (info); |
| 971 | } |
| 972 | } |
| 973 | |
| 974 | void |
| 975 | lw_destroy_everything () |
| 976 | { |
| 977 | while (all_widget_info) |
| 978 | lw_destroy_all_widgets (all_widget_info->id); |
| 979 | } |
| 980 | |
| 981 | void |
| 982 | lw_destroy_all_pop_ups () |
| 983 | { |
| 984 | widget_info* info; |
| 985 | widget_info* next; |
| 986 | widget_instance* instance; |
| 987 | |
| 988 | for (info = all_widget_info; info; info = next) |
| 989 | { |
| 990 | next = info->next; |
| 991 | instance = info->instances; |
| 992 | if (instance && instance->pop_up_p) |
| 993 | lw_destroy_all_widgets (info->id); |
| 994 | } |
| 995 | } |
| 996 | |
| 997 | #ifdef USE_MOTIF |
| 998 | extern Widget first_child (/* Widget */); /* garbage */ |
| 999 | #endif |
| 1000 | |
| 1001 | Widget |
| 1002 | lw_raise_all_pop_up_widgets () |
| 1003 | { |
| 1004 | widget_info* info; |
| 1005 | widget_instance* instance; |
| 1006 | Widget result = NULL; |
| 1007 | |
| 1008 | for (info = all_widget_info; info; info = info->next) |
| 1009 | for (instance = info->instances; instance; instance = instance->next) |
| 1010 | if (instance->pop_up_p) |
| 1011 | { |
| 1012 | Widget widget = instance->widget; |
| 1013 | if (widget) |
| 1014 | { |
| 1015 | if (XtIsManaged (widget) |
| 1016 | #ifdef USE_MOTIF |
| 1017 | /* What a complete load of crap!!!! |
| 1018 | When a dialogShell is on the screen, it is not managed! |
| 1019 | */ |
| 1020 | || (lw_motif_widget_p (instance->widget) && |
| 1021 | XtIsManaged (first_child (widget))) |
| 1022 | #endif |
| 1023 | ) |
| 1024 | { |
| 1025 | if (!result) |
| 1026 | result = widget; |
| 1027 | XMapRaised (XtDisplay (widget), XtWindow (widget)); |
| 1028 | } |
| 1029 | } |
| 1030 | } |
| 1031 | return result; |
| 1032 | } |
| 1033 | |
| 1034 | static void |
| 1035 | lw_pop_all_widgets (id, up) |
| 1036 | LWLIB_ID id; |
| 1037 | Boolean up; |
| 1038 | { |
| 1039 | widget_info* info = get_widget_info (id, False); |
| 1040 | widget_instance* instance; |
| 1041 | |
| 1042 | if (info) |
| 1043 | for (instance = info->instances; instance; instance = instance->next) |
| 1044 | if (instance->pop_up_p && instance->widget) |
| 1045 | { |
| 1046 | #if defined (USE_LUCID) |
| 1047 | if (lw_lucid_widget_p (instance->widget)) |
| 1048 | { |
| 1049 | XtRealizeWidget (instance->widget); |
| 1050 | xlw_pop_instance (instance, up); |
| 1051 | } |
| 1052 | #endif |
| 1053 | #if defined (USE_MOTIF) |
| 1054 | if (lw_motif_widget_p (instance->widget)) |
| 1055 | { |
| 1056 | XtRealizeWidget (instance->widget); |
| 1057 | xm_pop_instance (instance, up); |
| 1058 | } |
| 1059 | #endif |
| 1060 | #if defined (USE_OLIT) |
| 1061 | if (lw_olit_widget_p (instance->widget)) |
| 1062 | { |
| 1063 | XtRealizeWidget (instance->widget); |
| 1064 | xol_pop_instance (instance, up); |
| 1065 | } |
| 1066 | #endif |
| 1067 | #if defined (USE_XAW) |
| 1068 | if (lw_xaw_widget_p (instance->widget)) |
| 1069 | { |
| 1070 | XtRealizeWidget (XtParent (instance->widget)); |
| 1071 | XtRealizeWidget (instance->widget); |
| 1072 | xaw_pop_instance (instance, up); |
| 1073 | } |
| 1074 | #endif |
| 1075 | } |
| 1076 | } |
| 1077 | |
| 1078 | void |
| 1079 | lw_pop_up_all_widgets (id) |
| 1080 | LWLIB_ID id; |
| 1081 | { |
| 1082 | lw_pop_all_widgets (id, True); |
| 1083 | } |
| 1084 | |
| 1085 | void |
| 1086 | lw_pop_down_all_widgets (id) |
| 1087 | LWLIB_ID id; |
| 1088 | { |
| 1089 | lw_pop_all_widgets (id, False); |
| 1090 | } |
| 1091 | |
| 1092 | void |
| 1093 | lw_popup_menu (widget, event) |
| 1094 | Widget widget; |
| 1095 | XEvent *event; |
| 1096 | { |
| 1097 | #if defined (USE_LUCID) |
| 1098 | if (lw_lucid_widget_p (widget)) |
| 1099 | xlw_popup_menu (widget, event); |
| 1100 | #endif |
| 1101 | #if defined (USE_MOTIF) |
| 1102 | if (lw_motif_widget_p (widget)) |
| 1103 | xm_popup_menu (widget, event); |
| 1104 | #endif |
| 1105 | #if defined (USE_OLIT) |
| 1106 | if (lw_olit_widget_p (widget)) |
| 1107 | xol_popup_menu (widget, event); |
| 1108 | #endif |
| 1109 | #if defined (USE_XAW) |
| 1110 | if (lw_xaw_widget_p (widget)) |
| 1111 | xaw_popup_menu (widget, event); |
| 1112 | #endif |
| 1113 | } |
| 1114 | |
| 1115 | \f/* get the values back */ |
| 1116 | static Boolean |
| 1117 | get_one_value (instance, val) |
| 1118 | widget_instance* instance; |
| 1119 | widget_value* val; |
| 1120 | { |
| 1121 | Widget widget = name_to_widget (instance, val->name); |
| 1122 | |
| 1123 | if (widget) |
| 1124 | { |
| 1125 | #if defined (USE_LUCID) |
| 1126 | if (lw_lucid_widget_p (instance->widget)) |
| 1127 | xlw_update_one_value (instance, widget, val); |
| 1128 | #endif |
| 1129 | #if defined (USE_MOTIF) |
| 1130 | if (lw_motif_widget_p (instance->widget)) |
| 1131 | xm_update_one_value (instance, widget, val); |
| 1132 | #endif |
| 1133 | #if defined (USE_OLIT) |
| 1134 | if (lw_olit_widget_p (instance->widget)) |
| 1135 | xol_update_one_value (instance, widget, val); |
| 1136 | #endif |
| 1137 | #if defined (USE_XAW) |
| 1138 | if (lw_xaw_widget_p (instance->widget)) |
| 1139 | xaw_update_one_value (instance, widget, val); |
| 1140 | #endif |
| 1141 | return True; |
| 1142 | } |
| 1143 | else |
| 1144 | return False; |
| 1145 | } |
| 1146 | |
| 1147 | Boolean |
| 1148 | lw_get_some_values (id, val_out) |
| 1149 | LWLIB_ID id; |
| 1150 | widget_value* val_out; |
| 1151 | { |
| 1152 | widget_info* info = get_widget_info (id, False); |
| 1153 | widget_instance* instance; |
| 1154 | widget_value* val; |
| 1155 | Boolean result = False; |
| 1156 | |
| 1157 | if (!info) |
| 1158 | return False; |
| 1159 | |
| 1160 | instance = info->instances; |
| 1161 | if (!instance) |
| 1162 | return False; |
| 1163 | |
| 1164 | for (val = val_out; val; val = val->next) |
| 1165 | if (get_one_value (instance, val)) |
| 1166 | result = True; |
| 1167 | |
| 1168 | return result; |
| 1169 | } |
| 1170 | |
| 1171 | widget_value* |
| 1172 | lw_get_all_values (id) |
| 1173 | LWLIB_ID id; |
| 1174 | { |
| 1175 | widget_info* info = get_widget_info (id, False); |
| 1176 | widget_value* val = info->val; |
| 1177 | if (lw_get_some_values (id, val)) |
| 1178 | return val; |
| 1179 | else |
| 1180 | return NULL; |
| 1181 | } |
| 1182 | |
| 1183 | /* internal function used by the library dependent implementation to get the |
| 1184 | widget_value for a given widget in an instance */ |
| 1185 | widget_value* |
| 1186 | lw_get_widget_value_for_widget (instance, w) |
| 1187 | widget_instance* instance; |
| 1188 | Widget w; |
| 1189 | { |
| 1190 | char* name = XtName (w); |
| 1191 | widget_value* cur; |
| 1192 | for (cur = instance->info->val; cur; cur = cur->next) |
| 1193 | if (!strcmp (cur->name, name)) |
| 1194 | return cur; |
| 1195 | return NULL; |
| 1196 | } |
| 1197 | |
| 1198 | \f/* update other instances value when one thing changed */ |
| 1199 | /* This function can be used as a an XtCallback for the widgets that get |
| 1200 | modified to update other instances of the widgets. Closure should be the |
| 1201 | widget_instance. */ |
| 1202 | void |
| 1203 | lw_internal_update_other_instances (widget, closure, call_data) |
| 1204 | Widget widget; |
| 1205 | XtPointer closure; |
| 1206 | XtPointer call_data; |
| 1207 | { |
| 1208 | /* To forbid recursive calls */ |
| 1209 | static Boolean updating; |
| 1210 | |
| 1211 | widget_instance* instance = (widget_instance*)closure; |
| 1212 | char* name = XtName (widget); |
| 1213 | widget_info* info; |
| 1214 | widget_instance* cur; |
| 1215 | widget_value* val; |
| 1216 | |
| 1217 | /* never recurse as this could cause infinite recursions. */ |
| 1218 | if (updating) |
| 1219 | return; |
| 1220 | |
| 1221 | /* protect against the widget being destroyed */ |
| 1222 | if (XtWidgetBeingDestroyedP (widget)) |
| 1223 | return; |
| 1224 | |
| 1225 | /* Return immediately if there are no other instances */ |
| 1226 | info = instance->info; |
| 1227 | if (!info->instances->next) |
| 1228 | return; |
| 1229 | |
| 1230 | updating = True; |
| 1231 | |
| 1232 | for (val = info->val; val && strcmp (val->name, name); val = val->next); |
| 1233 | |
| 1234 | if (val && get_one_value (instance, val)) |
| 1235 | for (cur = info->instances; cur; cur = cur->next) |
| 1236 | if (cur != instance) |
| 1237 | set_one_value (cur, val, True); |
| 1238 | |
| 1239 | updating = False; |
| 1240 | } |
| 1241 | |
| 1242 | |
| 1243 | \f/* get the id */ |
| 1244 | |
| 1245 | LWLIB_ID |
| 1246 | lw_get_widget_id (w) |
| 1247 | Widget w; |
| 1248 | { |
| 1249 | widget_instance* instance = get_widget_instance (w, False); |
| 1250 | |
| 1251 | return instance ? instance->info->id : 0; |
| 1252 | } |
| 1253 | |
| 1254 | \f/* set the keyboard focus */ |
| 1255 | void |
| 1256 | lw_set_keyboard_focus (parent, w) |
| 1257 | Widget parent; |
| 1258 | Widget w; |
| 1259 | { |
| 1260 | #if defined (USE_MOTIF) |
| 1261 | xm_set_keyboard_focus (parent, w); |
| 1262 | #else |
| 1263 | XtSetKeyboardFocus (parent, w); |
| 1264 | #endif |
| 1265 | } |
| 1266 | |
| 1267 | \f/* Show busy */ |
| 1268 | static void |
| 1269 | show_one_widget_busy (w, flag) |
| 1270 | Widget w; |
| 1271 | Boolean flag; |
| 1272 | { |
| 1273 | Pixel foreground = 0; |
| 1274 | Pixel background = 1; |
| 1275 | Widget widget_to_invert = XtNameToWidget (w, "*sheet"); |
| 1276 | if (!widget_to_invert) |
| 1277 | widget_to_invert = w; |
| 1278 | |
| 1279 | XtVaGetValues (widget_to_invert, |
| 1280 | XtNforeground, &foreground, |
| 1281 | XtNbackground, &background, |
| 1282 | 0); |
| 1283 | XtVaSetValues (widget_to_invert, |
| 1284 | XtNforeground, background, |
| 1285 | XtNbackground, foreground, |
| 1286 | 0); |
| 1287 | } |
| 1288 | |
| 1289 | void |
| 1290 | lw_show_busy (w, busy) |
| 1291 | Widget w; |
| 1292 | Boolean busy; |
| 1293 | { |
| 1294 | widget_instance* instance = get_widget_instance (w, False); |
| 1295 | widget_info* info; |
| 1296 | widget_instance* next; |
| 1297 | |
| 1298 | if (instance) |
| 1299 | { |
| 1300 | info = instance->info; |
| 1301 | if (info->busy != busy) |
| 1302 | { |
| 1303 | for (next = info->instances; next; next = next->next) |
| 1304 | if (next->widget) |
| 1305 | show_one_widget_busy (next->widget, busy); |
| 1306 | info->busy = busy; |
| 1307 | } |
| 1308 | } |
| 1309 | } |
| 1310 | |
| 1311 | /* This hack exists because Lucid/Athena need to execute the strange |
| 1312 | function below to support geometry management. */ |
| 1313 | void |
| 1314 | lw_refigure_widget (w, doit) |
| 1315 | Widget w; |
| 1316 | Boolean doit; |
| 1317 | { |
| 1318 | #if defined (USE_XAW) |
| 1319 | XawPanedSetRefigureMode (w, doit); |
| 1320 | #endif |
| 1321 | #if defined (USE_MOTIF) |
| 1322 | if (doit) |
| 1323 | XtManageChild (w); |
| 1324 | else |
| 1325 | XtUnmanageChild (w); |
| 1326 | #endif |
| 1327 | } |
| 1328 | |
| 1329 | /* Toolkit independent way of determining if an event window is in the |
| 1330 | menubar. */ |
| 1331 | Boolean |
| 1332 | lw_window_is_in_menubar (win, menubar_widget) |
| 1333 | Window win; |
| 1334 | Widget menubar_widget; |
| 1335 | { |
| 1336 | return menubar_widget |
| 1337 | #if defined (USE_LUCID) |
| 1338 | && XtWindow (menubar_widget) == win; |
| 1339 | #endif |
| 1340 | #if defined (USE_MOTIF) |
| 1341 | && XtWindowToWidget (XtDisplay (menubar_widget), win) |
| 1342 | && (XtParent (XtWindowToWidget (XtDisplay (menubar_widget), win)) |
| 1343 | == menubar_widget); |
| 1344 | #endif |
| 1345 | } |
| 1346 | |
| 1347 | /* Motif hack to set the main window areas. */ |
| 1348 | void |
| 1349 | lw_set_main_areas (parent, menubar, work_area) |
| 1350 | Widget parent; |
| 1351 | Widget menubar; |
| 1352 | Widget work_area; |
| 1353 | { |
| 1354 | #if defined (USE_MOTIF) |
| 1355 | xm_set_main_areas (parent, menubar, work_area); |
| 1356 | #endif |
| 1357 | } |
| 1358 | |
| 1359 | /* Manage resizing for Motif. This disables resizing when the menubar |
| 1360 | is about to be modified. */ |
| 1361 | void |
| 1362 | lw_allow_resizing (w, flag) |
| 1363 | Widget w; |
| 1364 | Boolean flag; |
| 1365 | { |
| 1366 | #if defined (USE_MOTIF) |
| 1367 | xm_manage_resizing (w, flag); |
| 1368 | #endif |
| 1369 | } |