Mercurial > hg > xemacs-beta
annotate lwlib/lwlib.c @ 5603:2b2f37e84792
Fixes for building native windows setup kits
| author | Vin Shelton <acs@xemacs.org> |
|---|---|
| date | Tue, 29 Nov 2011 09:05:36 -0500 |
| parents | ade4c7e2c6cb |
| children |
| rev | line source |
|---|---|
| 428 | 1 /* A general interface to the widgets of different toolkits. |
| 2 Copyright (C) 1992, 1993, 1994 Lucid, Inc. | |
| 3 Copyright (C) 1995 Tinker Systems and INS Engineering Corp. | |
| 4 | |
| 5 This file is part of the Lucid Widget Library. | |
| 6 | |
|
5422
ade4c7e2c6cb
Migrate lwlib/ to GPLv3.
Mike Sperber <sperber@deinprogramm.de>
parents:
4759
diff
changeset
|
7 The Lucid Widget Library is free software: you can redistribute it |
|
ade4c7e2c6cb
Migrate lwlib/ to GPLv3.
Mike Sperber <sperber@deinprogramm.de>
parents:
4759
diff
changeset
|
8 and/or modify it under the terms of the GNU General Public License as |
|
ade4c7e2c6cb
Migrate lwlib/ to GPLv3.
Mike Sperber <sperber@deinprogramm.de>
parents:
4759
diff
changeset
|
9 published by the Free Software Foundation, either version 3 of the |
|
ade4c7e2c6cb
Migrate lwlib/ to GPLv3.
Mike Sperber <sperber@deinprogramm.de>
parents:
4759
diff
changeset
|
10 License, or (at your option) any later version. |
| 428 | 11 |
|
5422
ade4c7e2c6cb
Migrate lwlib/ to GPLv3.
Mike Sperber <sperber@deinprogramm.de>
parents:
4759
diff
changeset
|
12 The Lucid Widget Library is distributed in the hope that it will be |
|
ade4c7e2c6cb
Migrate lwlib/ to GPLv3.
Mike Sperber <sperber@deinprogramm.de>
parents:
4759
diff
changeset
|
13 useful, but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
ade4c7e2c6cb
Migrate lwlib/ to GPLv3.
Mike Sperber <sperber@deinprogramm.de>
parents:
4759
diff
changeset
|
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
|
ade4c7e2c6cb
Migrate lwlib/ to GPLv3.
Mike Sperber <sperber@deinprogramm.de>
parents:
4759
diff
changeset
|
15 General Public License for more details. |
| 428 | 16 |
| 17 You should have received a copy of the GNU General Public License | |
|
5422
ade4c7e2c6cb
Migrate lwlib/ to GPLv3.
Mike Sperber <sperber@deinprogramm.de>
parents:
4759
diff
changeset
|
18 along with the Lucid Widget Library. If not, see |
|
ade4c7e2c6cb
Migrate lwlib/ to GPLv3.
Mike Sperber <sperber@deinprogramm.de>
parents:
4759
diff
changeset
|
19 <http://www.gnu.org/licenses/>. */ |
| 428 | 20 |
| 21 #include <config.h> | |
| 22 #include <stdio.h> | |
| 23 #include <stdlib.h> | |
| 24 #include <string.h> | |
| 25 #include <sys/types.h> | |
| 26 #ifdef HAVE_UNISTD_H | |
| 27 #include <unistd.h> | |
| 28 #endif | |
| 29 #include <X11/StringDefs.h> | |
| 30 #include "lwlib-internal.h" | |
| 31 #include "lwlib-utils.h" | |
| 32 | |
| 33 #ifdef NEED_LUCID | |
| 34 #include "lwlib-Xlw.h" | |
| 35 #endif | |
| 36 #ifdef NEED_MOTIF | |
| 37 #include "lwlib-Xm.h" | |
| 434 | 38 #ifdef LWLIB_WIDGETS_MOTIF |
| 39 #include <Xm/Xm.h> | |
| 40 #endif | |
| 428 | 41 #endif |
| 42 #ifdef NEED_ATHENA | |
| 43 #include "lwlib-Xaw.h" | |
| 44 #endif | |
| 45 | |
| 46 /* #### Does a check need to be put back in here to make sure we have | |
| 47 sufficient defines to function properly or are the checks in the | |
| 48 makefile sufficient? */ | |
| 49 | |
| 50 /* List of all widgets managed by the library. Note that each "widget" | |
| 51 listed here may actually be a tree of widgets; for example, a | |
| 52 single entry here might represent a single menubar or popup menu, | |
| 53 each of which might be implemented with a tree of widgets. | |
| 54 */ | |
| 55 static widget_info *all_widget_info = NULL; | |
| 56 | |
| 57 /* boolean flag indicating that the menubar is active */ | |
| 58 int lw_menu_active = 0; | |
| 59 | |
| 60 /* X11 menubar widget */ | |
| 61 Widget lw_menubar_widget = NULL; | |
| 62 | |
| 63 /* whether the last menu operation was a keyboard accelerator */ | |
| 64 int lw_menu_accelerate = False; | |
| 65 | |
| 66 | |
| 67 /* Forward declarations */ | |
| 434 | 68 static void instantiate_widget_instance (widget_instance *instance); |
| 69 static void free_widget_value_args (widget_value* wv); | |
| 428 | 70 |
| 71 | |
| 72 /* utility functions for widget_instance and widget_info */ | |
| 73 static char * | |
| 442 | 74 safe_strdup (const char *s) |
| 428 | 75 { |
| 76 char *result; | |
| 77 if (! s) return 0; | |
| 78 result = (char *) malloc (strlen (s) + 1); | |
| 79 if (! result) | |
| 80 return 0; | |
| 81 strcpy (result, s); | |
| 82 return result; | |
| 83 } | |
| 84 | |
| 85 static void | |
| 86 safe_free_str (char *s) | |
| 87 { | |
| 88 if (s) free (s); | |
| 89 } | |
| 90 | |
| 91 static widget_value *widget_value_free_list = 0; | |
| 92 | |
| 93 widget_value * | |
| 94 malloc_widget_value (void) | |
| 95 { | |
| 96 widget_value *wv; | |
| 97 if (widget_value_free_list) | |
| 98 { | |
| 99 wv = widget_value_free_list; | |
| 100 widget_value_free_list = wv->free_list; | |
| 101 wv->free_list = 0; | |
| 102 } | |
| 103 else | |
| 104 { | |
| 105 wv = (widget_value *) malloc (sizeof (widget_value)); | |
| 106 } | |
| 107 if (wv) | |
| 108 { | |
| 438 | 109 memset (wv, '\0', sizeof (widget_value)); |
| 428 | 110 } |
| 111 return wv; | |
| 112 } | |
| 113 | |
| 114 /* this is analogous to free(). It frees only what was allocated | |
| 115 by malloc_widget_value(), and no substructures. | |
| 116 */ | |
| 117 void | |
| 118 free_widget_value (widget_value *wv) | |
| 119 { | |
| 120 if (wv->free_list) | |
| 121 abort (); | |
| 122 wv->free_list = widget_value_free_list; | |
| 123 widget_value_free_list = wv; | |
| 124 } | |
| 125 | |
| 126 static void | |
| 127 free_widget_value_contents (widget_value *wv) | |
| 128 { | |
| 129 if (wv->name) free (wv->name); | |
| 130 if (wv->value) free (wv->value); | |
| 131 if (wv->key) free (wv->key); | |
| 132 | |
| 133 /* #### - all of this 0xDEADBEEF stuff should be unnecessary | |
| 134 in production code... it should be conditionalized. */ | |
| 135 wv->name = wv->value = wv->key = (char *) 0xDEADBEEF; | |
| 136 | |
| 137 if (wv->toolkit_data && wv->free_toolkit_data) | |
| 138 { | |
| 139 XtFree ((char *) wv->toolkit_data); | |
| 140 wv->toolkit_data = (void *) 0xDEADBEEF; | |
| 141 } | |
| 142 #ifdef NEED_SCROLLBARS | |
| 143 if (wv->scrollbar_data) | |
| 144 { | |
| 145 free (wv->scrollbar_data); | |
| 146 wv->scrollbar_data = NULL; | |
| 147 } | |
| 148 #endif | |
| 149 if (wv->contents && (wv->contents != (widget_value*)1)) | |
| 150 { | |
| 151 free_widget_value_tree (wv->contents); | |
| 152 wv->contents = (widget_value *) 0xDEADBEEF; | |
| 153 } | |
| 434 | 154 |
| 155 free_widget_value_args (wv); | |
| 156 | |
| 428 | 157 if (wv->next) |
| 158 { | |
| 159 free_widget_value_tree (wv->next); | |
| 160 wv->next = (widget_value *) 0xDEADBEEF; | |
| 161 } | |
| 162 } | |
| 163 | |
| 164 void | |
| 165 free_widget_value_tree (widget_value *wv) | |
| 166 { | |
| 167 if (!wv) | |
| 168 return; | |
| 169 | |
| 170 free_widget_value_contents (wv); | |
| 171 free_widget_value (wv); | |
| 172 } | |
| 173 | |
| 174 #ifdef NEED_SCROLLBARS | |
| 175 | |
| 176 static void | |
| 177 copy_scrollbar_values (widget_value *val, widget_value *copy) | |
| 178 { | |
| 179 if (!copy->scrollbar_data) | |
| 180 copy->scrollbar_data = | |
| 181 (scrollbar_values *) malloc (sizeof (scrollbar_values)); | |
| 182 | |
| 183 if (val->scrollbar_data) | |
| 184 *copy->scrollbar_data = *val->scrollbar_data; | |
| 185 else | |
| 438 | 186 memset (copy->scrollbar_data, '\0', sizeof (scrollbar_values)); |
| 428 | 187 } |
| 188 | |
| 189 /* | |
| 190 * Return true if old->scrollbar_data were not equivalent | |
| 3025 | 191 * to new_->scrollbar_data. |
| 428 | 192 */ |
| 193 static Boolean | |
| 1201 | 194 merge_scrollbar_values (widget_value *old, widget_value *new_) |
| 428 | 195 { |
| 196 Boolean changed = False; | |
| 197 | |
| 1201 | 198 if (new_->scrollbar_data && !old->scrollbar_data) |
| 428 | 199 { |
| 1201 | 200 copy_scrollbar_values (new_, old); |
| 428 | 201 changed = True; |
| 202 } | |
| 1201 | 203 else if (!new_->scrollbar_data && old->scrollbar_data) |
| 428 | 204 { |
| 205 free (old->scrollbar_data); | |
| 206 old->scrollbar_data = NULL; | |
| 207 } | |
| 1201 | 208 else if (new_->scrollbar_data && old->scrollbar_data) |
| 428 | 209 { |
| 210 scrollbar_values *old_sb = old->scrollbar_data; | |
| 1201 | 211 scrollbar_values *new_sb = new_->scrollbar_data; |
| 428 | 212 |
| 213 if ((old_sb->line_increment != new_sb->line_increment) || | |
| 214 (old_sb->page_increment != new_sb->page_increment) || | |
| 215 (old_sb->minimum != new_sb->minimum) || | |
| 216 (old_sb->maximum != new_sb->maximum) || | |
| 217 (old_sb->slider_size != new_sb->slider_size) || | |
| 218 (old_sb->slider_position != new_sb->slider_position) || | |
| 219 (old_sb->scrollbar_width != new_sb->scrollbar_width) || | |
| 220 (old_sb->scrollbar_height != new_sb->scrollbar_height) || | |
| 221 (old_sb->scrollbar_x != new_sb->scrollbar_x) || | |
| 222 (old_sb->scrollbar_y != new_sb->scrollbar_y)) | |
| 223 changed = True; | |
| 224 | |
| 225 *old_sb = *new_sb; | |
| 226 } | |
| 227 | |
| 228 return changed; | |
| 229 } | |
| 230 | |
| 231 #endif /* NEED_SCROLLBARS */ | |
| 232 | |
| 771 | 233 #ifdef HAVE_X_WIDGETS |
| 434 | 234 /* |
| 235 * Return true if old->args was not equivalent | |
| 3025 | 236 * to new_->args. |
| 434 | 237 */ |
| 238 static Boolean | |
| 3025 | 239 merge_widget_value_args (widget_value *old, widget_value *new_) |
| 434 | 240 { |
| 241 Boolean changed = False; | |
| 242 | |
| 3025 | 243 if (new_->args && !old->args) |
| 434 | 244 { |
| 3025 | 245 lw_copy_widget_value_args (new_, old); |
| 434 | 246 changed = True; |
| 247 } | |
| 248 /* Generally we don't want to lose values that are already in the | |
| 249 widget. */ | |
| 3025 | 250 else if (!new_->args && old->args) |
| 434 | 251 { |
| 3025 | 252 lw_copy_widget_value_args (old, new_); |
| 434 | 253 changed = True; |
| 254 } | |
| 3025 | 255 else if (new_->args && old->args && new_->args != old->args) |
| 434 | 256 { |
| 257 /* #### Do something more sensible here than just copying the | |
| 258 new values (like actually merging the values). */ | |
| 3025 | 259 lw_copy_widget_value_args (new_, old); |
| 434 | 260 changed = True; |
| 261 } | |
| 3025 | 262 else if (new_->args && new_->args == old->args && new_->args->args_changed == True) |
| 450 | 263 { |
| 264 changed = True; | |
| 265 } | |
| 434 | 266 |
| 267 return changed; | |
| 268 } | |
| 771 | 269 #endif /* HAVE_X_WIDGETS */ |
| 434 | 270 |
| 428 | 271 /* Make a complete copy of a widget_value tree. Store CHANGE into |
| 272 the widget_value tree's `change' field. */ | |
| 273 | |
| 442 | 274 widget_value * |
| 428 | 275 copy_widget_value_tree (widget_value *val, change_type change) |
| 276 { | |
| 277 widget_value *copy; | |
| 278 | |
| 279 if (!val) | |
| 280 return NULL; | |
| 281 if (val == (widget_value *) 1) | |
| 282 return val; | |
| 283 | |
| 284 copy = malloc_widget_value (); | |
| 285 if (copy) | |
| 286 { | |
| 287 /* #### - don't seg fault *here* if out of memory. Menus will be | |
| 288 truncated inexplicably. */ | |
| 289 copy->type = val->type; | |
| 290 copy->name = safe_strdup (val->name); | |
| 291 copy->value = safe_strdup (val->value); | |
| 292 copy->key = safe_strdup (val->key); | |
| 293 copy->accel = val->accel; | |
| 294 copy->enabled = val->enabled; | |
| 295 copy->selected = val->selected; | |
| 296 copy->edited = False; | |
| 297 copy->change = change; | |
| 298 copy->contents = copy_widget_value_tree (val->contents, change); | |
| 299 copy->call_data = val->call_data; | |
| 300 copy->next = copy_widget_value_tree (val->next, change); | |
| 301 copy->toolkit_data = NULL; | |
| 302 copy->free_toolkit_data = False; | |
| 434 | 303 |
| 304 lw_copy_widget_value_args (val, copy); | |
| 428 | 305 #ifdef NEED_SCROLLBARS |
| 306 copy_scrollbar_values (val, copy); | |
| 307 #endif | |
| 308 } | |
| 309 return copy; | |
| 310 } | |
| 311 | |
| 312 /* This function is used to implement incremental menu construction. */ | |
| 313 | |
| 314 widget_value * | |
| 315 replace_widget_value_tree (widget_value *node, widget_value *newtree) | |
| 316 { | |
| 317 widget_value *copy; | |
| 318 | |
| 319 if (!node || !newtree) | |
| 320 abort (); | |
| 321 | |
| 322 copy = copy_widget_value_tree (newtree, STRUCTURAL_CHANGE); | |
| 323 | |
| 324 free_widget_value_contents (node); | |
| 325 *node = *copy; | |
| 326 free_widget_value (copy); /* free the node, but not its contents. */ | |
| 327 return node; | |
| 328 } | |
| 329 | |
| 330 static widget_info * | |
| 442 | 331 allocate_widget_info (const char *type, const char *name, |
| 428 | 332 LWLIB_ID id, widget_value *val, |
| 333 lw_callback pre_activate_cb, lw_callback selection_cb, | |
| 334 lw_callback post_activate_cb) | |
| 335 { | |
| 336 widget_info *info = (widget_info *) malloc (sizeof (widget_info)); | |
| 337 info->type = safe_strdup (type); | |
| 338 info->name = safe_strdup (name); | |
| 339 info->id = id; | |
| 340 info->val = copy_widget_value_tree (val, STRUCTURAL_CHANGE); | |
| 341 info->busy = False; | |
| 342 info->pre_activate_cb = pre_activate_cb; | |
| 343 info->selection_cb = selection_cb; | |
| 344 info->post_activate_cb = post_activate_cb; | |
| 345 info->instances = NULL; | |
| 346 | |
| 347 info->next = all_widget_info; | |
| 348 all_widget_info = info; | |
| 349 | |
| 350 return info; | |
| 351 } | |
| 352 | |
| 353 static void | |
| 354 free_widget_info (widget_info *info) | |
| 355 { | |
| 356 safe_free_str (info->type); | |
| 357 safe_free_str (info->name); | |
| 358 free_widget_value_tree (info->val); | |
| 438 | 359 memset (info, '\0', sizeof (widget_info)); |
| 428 | 360 free (info); |
| 361 } | |
| 362 | |
| 363 static void | |
| 2286 | 364 mark_widget_destroyed (Widget widget, XtPointer closure, |
| 365 XtPointer UNUSED (call_data)) | |
| 428 | 366 { |
| 367 widget_instance *instance = (widget_instance*)closure; | |
| 368 | |
| 369 /* be very conservative */ | |
| 370 if (instance->widget == widget) | |
| 371 instance->widget = NULL; | |
| 372 } | |
| 373 | |
| 374 static widget_instance * | |
| 375 allocate_widget_instance (widget_info *info, Widget parent, Boolean pop_up_p) | |
| 376 { | |
| 377 widget_instance *instance = | |
| 378 (widget_instance *) malloc (sizeof (widget_instance)); | |
| 379 instance->parent = parent; | |
| 380 instance->pop_up_p = pop_up_p; | |
| 381 instance->info = info; | |
| 382 instance->next = info->instances; | |
| 383 info->instances = instance; | |
| 384 | |
| 385 instantiate_widget_instance (instance); | |
| 386 | |
| 387 XtAddCallback (instance->widget, XtNdestroyCallback, | |
| 388 mark_widget_destroyed, (XtPointer)instance); | |
| 389 return instance; | |
| 390 } | |
| 391 | |
| 392 static void | |
| 393 free_widget_instance (widget_instance *instance) | |
| 394 { | |
| 438 | 395 memset (instance, '\0', sizeof (widget_instance)); |
| 428 | 396 free (instance); |
| 397 } | |
| 398 | |
| 399 static widget_info * | |
| 400 get_widget_info (LWLIB_ID id, Boolean remove_p) | |
| 401 { | |
| 402 widget_info *info; | |
| 403 widget_info *prev; | |
| 404 for (prev = NULL, info = all_widget_info; | |
| 405 info; | |
| 406 prev = info, info = info->next) | |
| 407 if (info->id == id) | |
| 408 { | |
| 409 if (remove_p) | |
| 410 { | |
| 411 if (prev) | |
| 412 prev->next = info->next; | |
| 413 else | |
| 414 all_widget_info = info->next; | |
| 415 } | |
| 416 return info; | |
| 417 } | |
| 418 return NULL; | |
| 419 } | |
| 420 | |
| 421 /* Internal function used by the library dependent implementation to get the | |
| 422 widget_value for a given widget in an instance */ | |
| 423 widget_info * | |
| 424 lw_get_widget_info (LWLIB_ID id) | |
| 425 { | |
| 426 return get_widget_info (id, 0); | |
| 427 } | |
| 428 | |
| 429 static int | |
| 430 map_widget_values (widget_value *value, int (*mapfunc) (widget_value *value, | |
| 431 void *closure), | |
| 432 void *closure) | |
| 433 { | |
| 434 int retval = 0; | |
| 435 | |
| 436 if (value->contents) | |
| 437 retval = map_widget_values (value->contents, mapfunc, closure); | |
| 438 if (retval) | |
| 439 return retval; | |
| 440 | |
| 441 if (value->next) | |
| 442 retval = map_widget_values (value->next, mapfunc, closure); | |
| 443 if (retval) | |
| 444 return retval; | |
| 445 | |
| 446 return (mapfunc) (value, closure); | |
| 447 } | |
| 448 | |
| 449 int | |
| 450 lw_map_widget_values (LWLIB_ID id, int (*mapfunc) (widget_value *value, | |
| 451 void *closure), | |
| 452 void *closure) | |
| 453 { | |
| 454 widget_info *info = get_widget_info (id, 0); | |
| 455 | |
| 456 if (!info) | |
| 457 abort (); | |
| 458 | |
| 459 if (info->val) | |
| 460 return map_widget_values (info->val, mapfunc, closure); | |
| 461 return 0; | |
| 462 } | |
| 463 | |
| 464 static widget_instance * | |
| 465 get_widget_instance (Widget widget, Boolean remove_p) | |
| 466 { | |
| 467 widget_info *info; | |
| 468 widget_instance *instance; | |
| 469 widget_instance *prev; | |
| 470 for (info = all_widget_info; info; info = info->next) | |
| 471 for (prev = NULL, instance = info->instances; | |
| 472 instance; | |
| 473 prev = instance, instance = instance->next) | |
| 474 if (instance->widget == widget) | |
| 475 { | |
| 476 if (remove_p) | |
| 477 { | |
| 478 if (prev) | |
| 479 prev->next = instance->next; | |
| 480 else | |
| 481 info->instances = instance->next; | |
| 482 } | |
| 483 return instance; | |
| 484 } | |
| 485 return (widget_instance *) 0; | |
| 486 } | |
| 487 | |
| 488 static widget_instance* | |
| 489 find_instance (LWLIB_ID id, Widget parent, Boolean pop_up_p) | |
| 490 { | |
| 491 widget_info *info = get_widget_info (id, False); | |
| 492 widget_instance *instance; | |
| 493 | |
| 494 if (info) | |
| 495 for (instance = info->instances; instance; instance = instance->next) | |
| 496 if (instance->parent == parent && instance->pop_up_p == pop_up_p) | |
| 497 return instance; | |
| 498 | |
| 499 return NULL; | |
| 500 } | |
| 501 | |
| 502 | |
| 503 /* utility function for widget_value */ | |
| 504 static Boolean | |
| 442 | 505 safe_strcmp (const char *s1, const char *s2) |
| 428 | 506 { |
| 507 if (!!s1 ^ !!s2) return True; | |
| 508 return (s1 && s2) ? strcmp (s1, s2) : s1 ? False : !!s2; | |
| 509 } | |
| 510 | |
| 511 #if 0 | |
| 512 # define EXPLAIN(name, oc, nc, desc, a1, a2) \ | |
| 513 printf ("Change: \"%s\"\tmax(%s=%d,%s=%d)\t%s %d %d\n", \ | |
| 514 name, \ | |
| 515 (oc == NO_CHANGE ? "none" : \ | |
| 516 (oc == INVISIBLE_CHANGE ? "invisible" : \ | |
| 517 (oc == VISIBLE_CHANGE ? "visible" : \ | |
| 518 (oc == STRUCTURAL_CHANGE ? "structural" : "???")))), \ | |
| 519 oc, \ | |
| 520 (nc == NO_CHANGE ? "none" : \ | |
| 521 (nc == INVISIBLE_CHANGE ? "invisible" : \ | |
| 522 (nc == VISIBLE_CHANGE ? "visible" : \ | |
| 523 (nc == STRUCTURAL_CHANGE ? "structural" : "???")))), \ | |
| 524 nc, desc, a1, a2) | |
| 525 #else | |
| 526 # define EXPLAIN(name, oc, nc, desc, a1, a2) | |
| 527 #endif | |
| 528 | |
| 529 | |
| 530 static widget_value * | |
| 531 merge_widget_value (widget_value *val1, widget_value *val2, int level) | |
| 532 { | |
| 533 change_type change; | |
| 534 widget_value *merged_next; | |
| 535 widget_value *merged_contents; | |
| 536 | |
| 537 if (!val1) | |
| 538 { | |
| 539 if (val2) | |
| 540 return copy_widget_value_tree (val2, STRUCTURAL_CHANGE); | |
| 541 else | |
| 542 return NULL; | |
| 543 } | |
| 544 if (!val2) | |
| 545 { | |
| 546 free_widget_value_tree (val1); | |
| 547 return NULL; | |
| 548 } | |
| 549 | |
| 550 change = NO_CHANGE; | |
| 551 | |
| 552 if (val1->type != val2->type) | |
| 553 { | |
| 554 EXPLAIN (val1->name, change, STRUCTURAL_CHANGE, "type change", | |
| 555 val1->type, val2->type); | |
| 556 change = max (change, STRUCTURAL_CHANGE); | |
| 557 val1->type = val2->type; | |
| 558 } | |
| 559 if (safe_strcmp (val1->name, val2->name)) | |
| 560 { | |
| 561 EXPLAIN (val1->name, change, STRUCTURAL_CHANGE, "name change", | |
| 562 val1->name, val2->name); | |
| 563 change = max (change, STRUCTURAL_CHANGE); | |
| 564 safe_free_str (val1->name); | |
| 565 val1->name = safe_strdup (val2->name); | |
| 566 } | |
| 567 if (safe_strcmp (val1->value, val2->value)) | |
| 568 { | |
| 569 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "value change", | |
| 570 val1->value, val2->value); | |
| 571 change = max (change, VISIBLE_CHANGE); | |
| 572 safe_free_str (val1->value); | |
| 573 val1->value = safe_strdup (val2->value); | |
| 574 } | |
| 575 if (safe_strcmp (val1->key, val2->key)) | |
| 576 { | |
| 577 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "key change", | |
| 578 val1->key, val2->key); | |
| 579 change = max (change, VISIBLE_CHANGE); | |
| 580 safe_free_str (val1->key); | |
| 581 val1->key = safe_strdup (val2->key); | |
| 582 } | |
| 583 if (val1->accel != val2->accel) | |
| 584 { | |
| 585 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "accelerator change", | |
| 586 val1->accel, val2->accel); | |
| 587 change = max (change, VISIBLE_CHANGE); | |
| 588 val1->accel = val2->accel; | |
| 589 } | |
| 590 if (val1->enabled != val2->enabled) | |
| 591 { | |
| 592 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "enablement change", | |
| 593 val1->enabled, val2->enabled); | |
| 594 change = max (change, VISIBLE_CHANGE); | |
| 595 val1->enabled = val2->enabled; | |
| 596 } | |
| 597 if (val1->selected != val2->selected) | |
| 598 { | |
| 599 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "selection change", | |
| 600 val1->selected, val2->selected); | |
| 601 change = max (change, VISIBLE_CHANGE); | |
| 602 val1->selected = val2->selected; | |
| 603 } | |
| 604 if (val1->call_data != val2->call_data) | |
| 605 { | |
| 606 EXPLAIN (val1->name, change, INVISIBLE_CHANGE, "call-data change", | |
| 607 val1->call_data, val2->call_data); | |
| 608 change = max (change, INVISIBLE_CHANGE); | |
| 609 val1->call_data = val2->call_data; | |
| 610 } | |
| 771 | 611 #ifdef HAVE_X_WIDGETS |
| 434 | 612 if (merge_widget_value_args (val1, val2)) |
| 613 { | |
| 614 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "widget change", 0, 0); | |
| 615 change = max (change, VISIBLE_CHANGE); | |
| 616 } | |
| 617 #endif | |
| 618 | |
| 428 | 619 #ifdef NEED_SCROLLBARS |
| 620 if (merge_scrollbar_values (val1, val2)) | |
| 621 { | |
| 622 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "scrollbar change", 0, 0); | |
| 623 change = max (change, VISIBLE_CHANGE); | |
| 624 } | |
| 625 #endif | |
| 626 | |
| 627 if (level > 0) | |
| 628 { | |
| 629 merged_contents = | |
| 630 merge_widget_value (val1->contents, val2->contents, level - 1); | |
| 631 | |
| 632 if (val1->contents && !merged_contents) | |
| 633 { | |
| 634 EXPLAIN (val1->name, change, INVISIBLE_CHANGE, "(contents gone)", | |
| 635 0, 0); | |
| 636 change = max (change, INVISIBLE_CHANGE); | |
| 637 } | |
| 638 else if (merged_contents && merged_contents->change != NO_CHANGE) | |
| 639 { | |
| 640 EXPLAIN (val1->name, change, INVISIBLE_CHANGE, "(contents change)", | |
| 641 0, 0); | |
| 642 change = max (change, INVISIBLE_CHANGE); | |
| 643 } | |
| 644 | |
| 645 val1->contents = merged_contents; | |
| 646 } | |
| 647 | |
| 648 merged_next = merge_widget_value (val1->next, val2->next, level); | |
| 649 | |
| 650 if (val1->next && !merged_next) | |
| 651 { | |
| 652 EXPLAIN (val1->name, change, STRUCTURAL_CHANGE, "(following gone)", | |
| 653 0, 0); | |
| 654 change = max (change, STRUCTURAL_CHANGE); | |
| 655 } | |
| 656 else if (merged_next) | |
| 657 { | |
| 658 if (merged_next->change) | |
| 659 { | |
| 660 EXPLAIN (val1->name, change, merged_next->change, "(following change)", | |
| 661 0, 0); | |
| 2286 | 662 change = max (change, merged_next->change); |
| 428 | 663 } |
| 664 } | |
| 665 | |
| 666 val1->next = merged_next; | |
| 667 | |
| 668 val1->change = change; | |
| 669 | |
| 670 if (change > NO_CHANGE && val1->toolkit_data) | |
| 671 { | |
| 672 if (val1->free_toolkit_data) | |
| 673 XtFree ((char *) val1->toolkit_data); | |
| 674 val1->toolkit_data = NULL; | |
| 675 } | |
| 676 | |
| 677 return val1; | |
| 678 } | |
| 679 | |
| 680 | |
| 681 /* modifying the widgets */ | |
| 682 static Widget | |
| 442 | 683 name_to_widget (widget_instance *instance, const char *name) |
| 428 | 684 { |
| 685 Widget widget = NULL; | |
| 686 | |
| 687 if (!instance->widget) | |
| 688 return NULL; | |
| 689 | |
| 690 if (!strcmp (XtName (instance->widget), name)) | |
| 691 widget = instance->widget; | |
| 692 else | |
| 693 { | |
| 694 int length = strlen (name) + 2; | |
| 695 char *real_name = (char *) alloca (length); | |
| 696 real_name [0] = '*'; | |
| 697 strcpy (real_name + 1, name); | |
| 698 | |
| 699 widget = XtNameToWidget (instance->widget, real_name); | |
| 700 } | |
| 701 return widget; | |
| 702 } | |
| 703 | |
| 704 static void | |
| 705 set_one_value (widget_instance *instance, widget_value *val, Boolean deep_p) | |
| 706 { | |
| 707 Widget widget = name_to_widget (instance, val->name); | |
| 708 | |
| 709 if (widget) | |
| 710 { | |
| 711 #ifdef NEED_LUCID | |
| 712 if (lw_lucid_widget_p (instance->widget)) | |
| 713 xlw_update_one_widget (instance, widget, val, deep_p); | |
| 714 #endif | |
| 715 #ifdef NEED_MOTIF | |
| 716 if (lw_motif_widget_p (instance->widget)) | |
| 717 xm_update_one_widget (instance, widget, val, deep_p); | |
| 718 #endif | |
| 719 #ifdef NEED_ATHENA | |
| 720 if (lw_xaw_widget_p (instance->widget)) | |
| 721 xaw_update_one_widget (instance, widget, val, deep_p); | |
| 722 #endif | |
| 723 } | |
| 724 } | |
| 725 | |
| 726 static void | |
| 727 update_one_widget_instance (widget_instance *instance, Boolean deep_p) | |
| 728 { | |
| 729 widget_value *val; | |
| 730 | |
| 731 if (!instance->widget) | |
| 732 /* the widget was destroyed */ | |
| 733 return; | |
| 734 | |
| 735 for (val = instance->info->val; val; val = val->next) | |
| 736 if (val->change != NO_CHANGE) | |
| 737 set_one_value (instance, val, deep_p); | |
| 738 } | |
| 739 | |
| 740 static void | |
| 741 update_all_widget_values (widget_info *info, Boolean deep_p) | |
| 742 { | |
| 743 widget_instance *instance; | |
| 744 widget_value *val; | |
| 745 | |
| 746 for (instance = info->instances; instance; instance = instance->next) | |
| 747 update_one_widget_instance (instance, deep_p); | |
| 748 | |
| 749 for (val = info->val; val; val = val->next) | |
| 450 | 750 { |
| 751 val->change = NO_CHANGE; | |
| 752 if (val->args) | |
| 753 val->args->args_changed = False; | |
| 754 } | |
| 428 | 755 } |
| 756 | |
| 757 void | |
| 758 lw_modify_all_widgets (LWLIB_ID id, widget_value *val, Boolean deep_p) | |
| 759 { | |
| 760 widget_info *info = get_widget_info (id, False); | |
| 761 widget_value *new_val; | |
| 762 widget_value *next_new_val; | |
| 763 widget_value *cur; | |
| 764 widget_value *prev; | |
| 765 widget_value *next; | |
| 766 int found; | |
| 767 | |
| 768 if (!info) | |
| 769 return; | |
| 770 | |
| 771 for (new_val = val; new_val; new_val = new_val->next) | |
| 772 { | |
| 773 next_new_val = new_val->next; | |
| 774 new_val->next = NULL; | |
| 775 found = False; | |
| 776 for (prev = NULL, cur = info->val; cur; prev = cur, cur = cur->next) | |
| 777 if (!strcmp (cur->name, new_val->name)) | |
| 778 { | |
| 779 found = True; | |
| 780 next = cur->next; | |
| 781 cur->next = NULL; | |
| 782 cur = merge_widget_value (cur, new_val, deep_p ? 1000 : 1); | |
| 783 if (prev) | |
| 784 prev->next = cur ? cur : next; | |
| 785 else | |
| 786 info->val = cur ? cur : next; | |
| 787 if (cur) | |
| 788 cur->next = next; | |
| 789 break; | |
| 790 } | |
| 791 if (!found) | |
| 792 { | |
| 793 /* Could not find it, add it */ | |
| 794 if (prev) | |
| 795 prev->next = copy_widget_value_tree (new_val, STRUCTURAL_CHANGE); | |
| 796 else | |
| 797 info->val = copy_widget_value_tree (new_val, STRUCTURAL_CHANGE); | |
| 798 } | |
| 799 new_val->next = next_new_val; | |
| 800 } | |
| 801 | |
| 802 update_all_widget_values (info, deep_p); | |
| 803 } | |
| 804 | |
| 805 | |
| 806 /* creating the widgets */ | |
| 807 | |
| 808 static void | |
| 809 initialize_widget_instance (widget_instance *instance) | |
| 810 { | |
| 811 widget_value *val; | |
| 812 | |
| 813 for (val = instance->info->val; val; val = val->next) | |
| 814 val->change = STRUCTURAL_CHANGE; | |
| 815 | |
| 816 update_one_widget_instance (instance, True); | |
| 817 | |
| 818 for (val = instance->info->val; val; val = val->next) | |
| 450 | 819 { |
| 820 val->change = NO_CHANGE; | |
| 821 if (val->args) | |
| 822 val->args->args_changed = False; | |
| 823 } | |
| 428 | 824 } |
| 825 | |
| 1201 | 826 #if defined (NEED_LUCID) || defined (NEED_ATHENA) || defined (NEED_MOTIF) |
| 827 | |
| 442 | 828 /* strcasecmp() is not sufficiently portable or standard, |
| 829 and it's easier just to write our own. */ | |
| 830 static int | |
| 831 ascii_strcasecmp (const char *s1, const char *s2) | |
| 832 { | |
| 833 while (1) | |
| 834 { | |
| 835 char c1 = *s1++; | |
| 836 char c2 = *s2++; | |
| 837 if (c1 >= 'A' && c1 <= 'Z') c1 += 'a' - 'A'; | |
| 838 if (c2 >= 'A' && c2 <= 'Z') c2 += 'a' - 'A'; | |
| 839 if (c1 != c2) return c1 - c2; | |
| 840 if (c1 == '\0') return 0; | |
| 841 } | |
| 842 } | |
| 428 | 843 |
| 844 static widget_creation_function | |
| 450 | 845 find_in_table (const char *type, const widget_creation_entry table[]) |
| 428 | 846 { |
| 450 | 847 const widget_creation_entry *cur; |
| 428 | 848 for (cur = table; cur->type; cur++) |
| 442 | 849 if (!ascii_strcasecmp (type, cur->type)) |
| 428 | 850 return cur->function; |
| 851 return NULL; | |
| 852 } | |
| 853 | |
| 872 | 854 #endif |
| 855 | |
| 428 | 856 static Boolean |
| 442 | 857 dialog_spec_p (const char *name) |
| 428 | 858 { |
| 859 /* return True if name matches [EILPQeilpq][1-9][Bb] or | |
| 860 [EILPQeilpq][1-9][Bb][Rr][1-9] */ | |
| 861 if (!name) | |
| 862 return False; | |
| 863 | |
| 864 switch (name [0]) | |
| 865 { | |
| 866 case 'E': case 'I': case 'L': case 'P': case 'Q': | |
| 867 case 'e': case 'i': case 'l': case 'p': case 'q': | |
| 868 if (name [1] >= '0' && name [1] <= '9') | |
| 869 { | |
| 870 if (name [2] != 'B' && name [2] != 'b') | |
| 871 return False; | |
| 872 if (!name [3]) | |
| 873 return True; | |
| 874 if ((name [3] == 'T' || name [3] == 't') && !name [4]) | |
| 875 return True; | |
| 876 if ((name [3] == 'R' || name [3] == 'r') | |
| 877 && name [4] >= '0' && name [4] <= '9' && !name [5]) | |
| 878 return True; | |
| 879 return False; | |
| 880 } | |
| 881 else | |
| 882 return False; | |
| 883 | |
| 884 default: | |
| 885 return False; | |
| 886 } | |
| 887 } | |
| 888 | |
| 889 static void | |
| 890 instantiate_widget_instance (widget_instance *instance) | |
| 891 { | |
| 892 widget_creation_function function = NULL; | |
| 893 | |
| 894 #ifdef NEED_LUCID | |
| 895 if (!function) | |
| 896 function = find_in_table (instance->info->type, xlw_creation_table); | |
| 897 #endif | |
| 898 #ifdef NEED_MOTIF | |
| 899 if (!function) | |
| 900 function = find_in_table (instance->info->type, xm_creation_table); | |
| 901 #endif | |
| 902 #ifdef NEED_ATHENA | |
| 903 if (!function) | |
| 904 function = find_in_table (instance->info->type, xaw_creation_table); | |
| 905 #endif | |
| 906 | |
| 907 if (!function) | |
| 908 { | |
| 909 if (dialog_spec_p (instance->info->type)) | |
| 910 { | |
| 911 #ifdef LWLIB_DIALOGS_MOTIF | |
| 912 if (!function) | |
| 913 function = xm_create_dialog; | |
| 914 #endif | |
| 915 #ifdef LWLIB_DIALOGS_ATHENA | |
| 916 if (!function) | |
| 917 function = xaw_create_dialog; | |
| 918 #endif | |
| 919 #ifdef LWLIB_DIALOGS_LUCID | |
| 920 /* not yet (not ever?) */ | |
| 921 #endif | |
| 922 } | |
| 923 } | |
| 924 | |
| 925 if (!function) | |
| 926 { | |
| 927 fprintf (stderr, "No creation function for widget type %s\n", | |
| 928 instance->info->type); | |
| 929 abort (); | |
| 930 } | |
| 931 | |
| 932 instance->widget = (*function) (instance); | |
| 933 | |
| 934 if (!instance->widget) | |
| 935 abort (); | |
| 936 | |
| 937 /* XtRealizeWidget (instance->widget);*/ | |
| 938 } | |
| 939 | |
| 940 void | |
| 442 | 941 lw_register_widget (const char *type, const char *name, |
| 428 | 942 LWLIB_ID id, widget_value *val, |
| 943 lw_callback pre_activate_cb, lw_callback selection_cb, | |
| 944 lw_callback post_activate_cb) | |
| 945 { | |
| 946 if (!get_widget_info (id, False)) | |
| 947 allocate_widget_info (type, name, id, val, pre_activate_cb, selection_cb, | |
| 948 post_activate_cb); | |
| 949 } | |
| 950 | |
| 951 Widget | |
| 952 lw_get_widget (LWLIB_ID id, Widget parent, Boolean pop_up_p) | |
| 953 { | |
| 954 widget_instance *instance = find_instance (id, parent, pop_up_p); | |
| 955 return instance ? instance->widget : NULL; | |
| 956 } | |
| 957 | |
| 958 Widget | |
| 959 lw_make_widget (LWLIB_ID id, Widget parent, Boolean pop_up_p) | |
| 960 { | |
| 961 widget_instance *instance = find_instance (id, parent, pop_up_p); | |
| 962 | |
| 963 if (!instance) | |
| 964 { | |
| 965 widget_info *info = get_widget_info (id, False); | |
| 966 if (!info) | |
| 967 return NULL; | |
| 968 instance = allocate_widget_instance (info, parent, pop_up_p); | |
| 969 initialize_widget_instance (instance); | |
| 970 } | |
| 971 if (!instance->widget) | |
| 972 abort (); | |
| 973 return instance->widget; | |
| 974 } | |
| 975 | |
| 976 Widget | |
| 442 | 977 lw_create_widget (const char *type, const char *name, |
| 428 | 978 LWLIB_ID id, widget_value *val, |
| 979 Widget parent, Boolean pop_up_p, lw_callback pre_activate_cb, | |
| 980 lw_callback selection_cb, lw_callback post_activate_cb) | |
| 981 { | |
| 982 lw_register_widget (type, name, id, val, pre_activate_cb, selection_cb, | |
| 983 post_activate_cb); | |
| 984 return lw_make_widget (id, parent, pop_up_p); | |
| 985 } | |
| 986 | |
| 987 | |
| 988 /* destroying the widgets */ | |
| 989 static void | |
| 990 destroy_one_instance (widget_instance *instance) | |
| 991 { | |
| 992 /* Remove the destroy callback on the widget; that callback will try to | |
| 993 dereference the instance object (to set its widget slot to 0, since the | |
| 994 widget is dead.) Since the instance is now dead, we don't have to worry | |
| 995 about the fact that its widget is dead too. | |
| 996 | |
| 997 This happens in the Phase2Destroy of the widget, so this callback would | |
| 998 not have been run until arbitrarily long after the instance was freed. | |
| 999 */ | |
| 1000 if (instance->widget) | |
| 1001 XtRemoveCallback (instance->widget, XtNdestroyCallback, | |
| 1002 mark_widget_destroyed, (XtPointer)instance); | |
| 1003 | |
| 1004 if (instance->widget) | |
| 1005 { | |
| 1006 /* The else are pretty tricky here, including the empty statement | |
| 1007 at the end because it would be very bad to destroy a widget | |
| 1008 twice. */ | |
| 1009 #ifdef NEED_LUCID | |
| 1010 if (lw_lucid_widget_p (instance->widget)) | |
| 1011 xlw_destroy_instance (instance); | |
| 1012 else | |
| 1013 #endif | |
| 1014 #ifdef NEED_MOTIF | |
| 1015 if (lw_motif_widget_p (instance->widget)) | |
| 1016 xm_destroy_instance (instance); | |
| 1017 else | |
| 1018 #endif | |
| 1019 #ifdef NEED_ATHENA | |
| 1020 if (lw_xaw_widget_p (instance->widget)) | |
| 1021 xaw_destroy_instance (instance); | |
| 1022 else | |
| 1023 #endif | |
| 1024 { | |
| 1025 /* do not remove the empty statement */ | |
| 1026 ; | |
| 1027 } | |
| 1028 } | |
| 1029 | |
| 1030 free_widget_instance (instance); | |
| 1031 } | |
| 1032 | |
| 1033 void | |
| 1034 lw_destroy_widget (Widget w) | |
| 1035 { | |
| 1036 widget_instance *instance = get_widget_instance (w, True); | |
| 1037 | |
| 1038 if (instance) | |
| 1039 { | |
| 1040 widget_info *info = instance->info; | |
| 1041 /* instance has already been removed from the list; free it */ | |
| 1042 destroy_one_instance (instance); | |
| 1043 /* if there are no instances left, free the info too */ | |
| 1044 if (!info->instances) | |
| 1045 lw_destroy_all_widgets (info->id); | |
| 1046 } | |
| 1047 } | |
| 1048 | |
| 1049 void | |
| 1050 lw_destroy_all_widgets (LWLIB_ID id) | |
| 1051 { | |
| 1052 widget_info *info = get_widget_info (id, True); | |
| 1053 widget_instance *instance; | |
| 1054 widget_instance *next; | |
| 1055 | |
| 1056 if (info) | |
| 1057 { | |
| 1058 for (instance = info->instances; instance; ) | |
| 1059 { | |
| 1060 next = instance->next; | |
| 1061 destroy_one_instance (instance); | |
| 1062 instance = next; | |
| 1063 } | |
| 1064 free_widget_info (info); | |
| 1065 } | |
| 1066 } | |
| 1067 | |
| 1068 void | |
| 442 | 1069 lw_destroy_everything (void) |
| 428 | 1070 { |
| 1071 while (all_widget_info) | |
| 1072 lw_destroy_all_widgets (all_widget_info->id); | |
| 1073 } | |
| 1074 | |
| 1075 void | |
| 442 | 1076 lw_destroy_all_pop_ups (void) |
| 428 | 1077 { |
| 1078 widget_info *info; | |
| 1079 widget_info *next; | |
| 1080 widget_instance *instance; | |
| 1081 | |
| 1082 for (info = all_widget_info; info; info = next) | |
| 1083 { | |
| 1084 next = info->next; | |
| 1085 instance = info->instances; | |
| 1086 if (instance && instance->pop_up_p) | |
| 1087 lw_destroy_all_widgets (info->id); | |
| 1088 } | |
| 1089 } | |
| 1090 | |
| 1091 Widget | |
| 1092 lw_raise_all_pop_up_widgets (void) | |
| 1093 { | |
| 1094 widget_info *info; | |
| 1095 widget_instance *instance; | |
| 1096 Widget result = NULL; | |
| 1097 | |
| 1098 for (info = all_widget_info; info; info = info->next) | |
| 1099 for (instance = info->instances; instance; instance = instance->next) | |
| 1100 if (instance->pop_up_p) | |
| 1101 { | |
| 1102 Widget widget = instance->widget; | |
| 1103 if (widget) | |
| 1104 { | |
| 1105 if (XtIsManaged (widget) | |
| 1106 #ifdef NEED_MOTIF | |
| 1107 /* What a complete load of crap!!!! | |
| 1108 When a dialogShell is on the screen, it is not managed! | |
| 1109 */ | |
| 1110 || (lw_motif_widget_p (instance->widget) && | |
| 1111 XtIsManaged (first_child (widget))) | |
| 1112 #endif | |
| 1113 ) | |
| 1114 { | |
| 1115 if (!result) | |
| 1116 result = widget; | |
| 1117 XMapRaised (XtDisplay (widget), XtWindow (widget)); | |
| 1118 } | |
| 1119 } | |
| 1120 } | |
| 1121 return result; | |
| 1122 } | |
| 1123 | |
| 1124 static void | |
| 1125 lw_pop_all_widgets (LWLIB_ID id, Boolean up) | |
| 1126 { | |
| 1127 widget_info *info = get_widget_info (id, False); | |
| 1128 widget_instance *instance; | |
| 1129 | |
| 1130 if (info) | |
| 1131 for (instance = info->instances; instance; instance = instance->next) | |
| 1132 if (instance->pop_up_p && instance->widget) | |
| 1133 { | |
| 1134 #ifdef NEED_LUCID | |
| 1135 if (lw_lucid_widget_p (instance->widget)) | |
| 1136 { | |
| 1137 XtRealizeWidget (instance->widget); | |
| 1138 xlw_pop_instance (instance, up); | |
| 1139 } | |
| 1140 #endif | |
| 1141 #ifdef NEED_MOTIF | |
| 1142 if (lw_motif_widget_p (instance->widget)) | |
| 1143 { | |
| 1144 XtRealizeWidget (instance->widget); | |
| 1145 xm_pop_instance (instance, up); | |
| 1146 } | |
| 1147 #endif | |
| 1148 #ifdef NEED_ATHENA | |
| 1149 if (lw_xaw_widget_p (instance->widget)) | |
| 1150 { | |
| 1151 XtRealizeWidget (XtParent (instance->widget)); | |
| 1152 XtRealizeWidget (instance->widget); | |
| 1153 xaw_pop_instance (instance, up); | |
| 1154 } | |
| 1155 #endif | |
| 1156 } | |
| 1157 } | |
| 1158 | |
| 1159 void | |
| 1160 lw_pop_up_all_widgets (LWLIB_ID id) | |
| 1161 { | |
| 1162 lw_pop_all_widgets (id, True); | |
| 1163 } | |
| 1164 | |
| 1165 void | |
| 1166 lw_pop_down_all_widgets (LWLIB_ID id) | |
| 1167 { | |
| 1168 lw_pop_all_widgets (id, False); | |
| 1169 } | |
| 1170 | |
| 1171 void | |
| 1172 lw_popup_menu (Widget widget, XEvent *event) | |
| 1173 { | |
| 1174 #ifdef LWLIB_MENUBARS_LUCID | |
| 1175 if (lw_lucid_widget_p (widget)) | |
| 1176 xlw_popup_menu (widget, event); | |
| 1177 #endif | |
| 1178 #ifdef LWLIB_MENUBARS_MOTIF | |
| 1179 if (lw_motif_widget_p (widget)) | |
| 1180 xm_popup_menu (widget, event); | |
| 1181 #endif | |
| 1182 #ifdef LWLIB_MENUBARS_ATHENA | |
| 1183 if (lw_xaw_widget_p (widget)) | |
| 1184 xaw_popup_menu (widget, event); /* not implemented */ | |
| 1185 #endif | |
| 1186 } | |
| 1187 | |
| 1188 /* get the values back */ | |
| 1189 static Boolean | |
| 1190 get_one_value (widget_instance *instance, widget_value *val) | |
| 1191 { | |
| 1192 Widget widget = name_to_widget (instance, val->name); | |
| 1193 | |
| 1194 if (widget) | |
| 1195 { | |
| 1196 #ifdef NEED_LUCID | |
| 1197 if (lw_lucid_widget_p (instance->widget)) | |
| 1198 xlw_update_one_value (instance, widget, val); | |
| 1199 #endif | |
| 1200 #ifdef NEED_MOTIF | |
| 1201 if (lw_motif_widget_p (instance->widget)) | |
| 1202 xm_update_one_value (instance, widget, val); | |
| 1203 #endif | |
| 1204 #ifdef NEED_ATHENA | |
| 1205 if (lw_xaw_widget_p (instance->widget)) | |
| 1206 xaw_update_one_value (instance, widget, val); | |
| 1207 #endif | |
| 1208 return True; | |
| 1209 } | |
| 1210 else | |
| 1211 return False; | |
| 1212 } | |
| 1213 | |
| 1214 Boolean | |
| 1215 lw_get_some_values (LWLIB_ID id, widget_value *val_out) | |
| 1216 { | |
| 1217 widget_info *info = get_widget_info (id, False); | |
| 1218 widget_instance *instance; | |
| 1219 widget_value *val; | |
| 1220 Boolean result = False; | |
| 1221 | |
| 1222 if (!info) | |
| 1223 return False; | |
| 1224 | |
| 1225 instance = info->instances; | |
| 1226 if (!instance) | |
| 1227 return False; | |
| 1228 | |
| 1229 for (val = val_out; val; val = val->next) | |
| 1230 if (get_one_value (instance, val)) | |
| 1231 result = True; | |
| 1232 | |
| 1233 return result; | |
| 1234 } | |
| 1235 | |
| 1236 widget_value* | |
| 1237 lw_get_all_values (LWLIB_ID id) | |
| 1238 { | |
| 1239 widget_info *info = get_widget_info (id, False); | |
| 1240 widget_value *val = info->val; | |
| 1241 if (lw_get_some_values (id, val)) | |
| 1242 return val; | |
| 1243 else | |
| 1244 return NULL; | |
| 1245 } | |
| 1246 | |
| 1247 /* internal function used by the library dependent implementation to get the | |
| 1248 widget_value for a given widget in an instance */ | |
| 1249 widget_value* | |
| 1250 lw_get_widget_value_for_widget (widget_instance *instance, Widget w) | |
| 1251 { | |
| 1252 char *name = XtName (w); | |
| 1253 widget_value *cur; | |
| 1254 for (cur = instance->info->val; cur; cur = cur->next) | |
| 1255 if (!strcmp (cur->name, name)) | |
| 1256 return cur; | |
| 1257 return NULL; | |
| 1258 } | |
| 1259 | |
| 1260 | |
| 1261 /* update other instances value when one thing changed */ | |
| 1262 /* This function can be used as a an XtCallback for the widgets that get | |
| 1263 modified to update other instances of the widgets. Closure should be the | |
| 1264 widget_instance. */ | |
| 1265 void | |
| 1266 lw_internal_update_other_instances (Widget widget, XtPointer closure, | |
| 2286 | 1267 XtPointer UNUSED (call_data)) |
| 428 | 1268 { |
| 1269 /* To forbid recursive calls */ | |
| 1270 static Boolean updating; | |
| 1271 | |
| 1272 widget_instance *instance = (widget_instance*)closure; | |
| 1273 char *name = XtName (widget); | |
| 1274 widget_info *info; | |
| 1275 widget_instance *cur; | |
| 1276 widget_value *val; | |
| 1277 | |
| 1278 /* never recurse as this could cause infinite recursions. */ | |
| 1279 if (updating) | |
| 1280 return; | |
| 1281 | |
| 1282 /* protect against the widget being destroyed */ | |
| 1283 if (XtWidgetBeingDestroyedP (widget)) | |
| 1284 return; | |
| 1285 | |
| 1286 /* Return immediately if there are no other instances */ | |
| 1287 info = instance->info; | |
| 1288 if (!info->instances->next) | |
| 1289 return; | |
| 1290 | |
| 1291 updating = True; | |
| 1292 | |
| 1293 for (val = info->val; val && strcmp (val->name, name); val = val->next); | |
| 1294 | |
| 1295 if (val && get_one_value (instance, val)) | |
| 1296 for (cur = info->instances; cur; cur = cur->next) | |
| 1297 if (cur != instance) | |
| 1298 set_one_value (cur, val, True); | |
| 1299 | |
| 1300 updating = False; | |
| 1301 } | |
| 1302 | |
| 1303 | |
| 1304 | |
| 1305 /* get the id */ | |
| 1306 | |
| 1307 LWLIB_ID | |
| 1308 lw_get_widget_id (Widget w) | |
| 1309 { | |
| 1310 widget_instance *instance = get_widget_instance (w, False); | |
| 1311 | |
| 1312 return instance ? instance->info->id : 0; | |
| 1313 } | |
| 1314 | |
| 1315 | |
| 1316 /* set the keyboard focus */ | |
| 1317 void | |
| 1318 lw_set_keyboard_focus (Widget parent, Widget w) | |
| 1319 { | |
| 1320 #if defined(NEED_MOTIF) && !defined(LESSTIF_VERSION) | |
| 1321 /* This loses with Lesstif v0.75a */ | |
| 1322 xm_set_keyboard_focus (parent, w); | |
| 1323 #else | |
| 1324 XtSetKeyboardFocus (parent, w); | |
| 1325 #endif | |
| 1326 } | |
| 1327 | |
| 1328 | |
| 1329 /* Show busy */ | |
| 1330 static void | |
| 2286 | 1331 show_one_widget_busy (Widget w, Boolean UNUSED (flag)) |
| 428 | 1332 { |
| 1333 Pixel foreground = 0; | |
| 1334 Pixel background = 1; | |
| 1335 Widget widget_to_invert = XtNameToWidget (w, "*sheet"); | |
| 1336 Arg al [2]; | |
| 1337 | |
| 1338 if (!widget_to_invert) | |
| 1339 widget_to_invert = w; | |
| 1340 | |
| 1341 XtSetArg (al [0], XtNforeground, &foreground); | |
| 1342 XtSetArg (al [1], XtNbackground, &background); | |
| 1343 XtGetValues (widget_to_invert, al, 2); | |
| 1344 | |
| 1345 XtSetArg (al [0], XtNforeground, background); | |
| 1346 XtSetArg (al [1], XtNbackground, foreground); | |
| 1347 XtSetValues (widget_to_invert, al, 2); | |
| 1348 } | |
| 1349 | |
| 1350 void | |
| 1351 lw_show_busy (Widget w, Boolean busy) | |
| 1352 { | |
| 1353 widget_instance *instance = get_widget_instance (w, False); | |
| 1354 widget_info *info; | |
| 1355 widget_instance *next; | |
| 1356 | |
| 1357 if (instance) | |
| 1358 { | |
| 1359 info = instance->info; | |
| 1360 if (info->busy != busy) | |
| 1361 { | |
| 1362 for (next = info->instances; next; next = next->next) | |
| 1363 if (next->widget) | |
| 1364 show_one_widget_busy (next->widget, busy); | |
| 1365 info->busy = busy; | |
| 1366 } | |
| 1367 } | |
| 1368 } | |
| 1369 | |
| 1370 void lw_add_value_args_to_args (widget_value* wv, ArgList addto, int* offset) | |
| 1371 { | |
| 1372 int i; | |
| 434 | 1373 if (wv->args && wv->args->nargs) |
| 428 | 1374 { |
| 434 | 1375 for (i = 0; i<wv->args->nargs; i++) |
| 428 | 1376 { |
| 434 | 1377 addto[i + *offset] = wv->args->args[i]; |
| 428 | 1378 } |
| 434 | 1379 *offset += wv->args->nargs; |
| 428 | 1380 } |
| 1381 } | |
| 1382 | |
|
4528
726060ee587c
First draft of g++ 4.3 warning removal patch. Builds. *Needs ChangeLogs.*
Stephen J. Turnbull <stephen@xemacs.org>
parents:
4522
diff
changeset
|
1383 XtArgVal lw_get_value_arg (widget_value* wv, const String name) |
| 639 | 1384 { |
| 1385 int i; | |
| 1386 if (wv->args) | |
| 1387 { | |
| 1388 for (i = 0; i < wv->args->nargs; i++) | |
| 1389 { | |
| 1390 if (!strcmp (wv->args->args[i].name, name)) | |
| 1391 { | |
| 1392 return wv->args->args[i].value; | |
| 1393 } | |
| 1394 } | |
| 1395 } | |
| 1396 return (XtArgVal)0; | |
| 1397 } | |
| 1398 | |
| 434 | 1399 void lw_add_widget_value_arg (widget_value* wv, String name, XtArgVal value) |
| 1400 { | |
| 442 | 1401 int i = 0; |
| 434 | 1402 if (!wv->args) |
| 1403 { | |
| 1404 wv->args = (widget_args *) malloc (sizeof (widget_args)); | |
| 438 | 1405 memset (wv->args, '\0', sizeof (widget_args)); |
| 434 | 1406 wv->args->ref_count = 1; |
| 1407 wv->args->nargs = 0; | |
| 1408 wv->args->args = (ArgList) malloc (sizeof (Arg) * 10); | |
| 438 | 1409 memset (wv->args->args, '\0', sizeof (Arg) * 10); |
| 434 | 1410 } |
| 1411 | |
| 1412 if (wv->args->nargs > 10) | |
| 1413 return; | |
| 1414 | |
| 450 | 1415 /* Register the change. */ |
| 1416 wv->args->args_changed = True; | |
| 442 | 1417 /* If the arg is already there then we must replace it. */ |
| 1418 for (i = 0; i < wv->args->nargs; i++) | |
| 1419 { | |
| 1420 if (!strcmp (wv->args->args[i].name, name)) | |
| 1421 { | |
| 1422 XtSetArg (wv->args->args [i], name, value); | |
| 1423 break; | |
| 1424 } | |
| 1425 } | |
| 1426 if (i >= wv->args->nargs) | |
| 1427 { | |
| 1428 XtSetArg (wv->args->args [wv->args->nargs], name, value); wv->args->nargs++; | |
| 1429 } | |
| 434 | 1430 } |
| 1431 | |
| 1432 static void free_widget_value_args (widget_value* wv) | |
| 1433 { | |
| 1434 if (wv->args) | |
| 1435 { | |
| 1436 if (--wv->args->ref_count <= 0) | |
| 1437 { | |
| 1438 #ifdef LWLIB_WIDGETS_MOTIF | |
| 1439 int i; | |
| 1440 for (i = 0; i < wv->args->nargs; i++) | |
| 1441 { | |
| 1442 if (!strcmp (wv->args->args[i].name, XmNfontList)) | |
| 1443 XmFontListFree ((XmFontList)wv->args->args[i].value); | |
| 1444 } | |
| 1445 #endif | |
| 1446 free (wv->args->args); | |
| 1447 free (wv->args); | |
| 442 | 1448 wv->args = 0; |
| 434 | 1449 } |
| 1450 } | |
| 1451 } | |
| 1452 | |
| 1453 void lw_copy_widget_value_args (widget_value* val, widget_value* copy) | |
| 1454 { | |
| 442 | 1455 if (val == copy || val->args == copy->args) |
| 1456 return; | |
| 1457 | |
| 1458 if (copy->args) | |
| 434 | 1459 { |
| 442 | 1460 free_widget_value_args (copy); |
| 434 | 1461 } |
| 442 | 1462 |
| 1463 if (val->args) | |
| 434 | 1464 { |
| 1465 copy->args = val->args; | |
| 1466 copy->args->ref_count++; | |
| 1467 } | |
| 1468 } | |
| 1469 | |
| 442 | 1470 /* Remove %_ and convert %% to %. We can do this in-place because we |
| 1471 are always shortening, never lengthening, the string. */ | |
| 1472 void | |
| 1473 lw_remove_accelerator_spec (char *val) | |
| 1474 { | |
| 1475 char *foo = val, *bar = val; | |
| 1476 | |
| 1477 while (*bar) | |
| 1478 { | |
| 1479 if (*bar == '%' && *(bar+1) == '_') | |
| 1480 bar += 2; | |
| 1481 else if (*bar == '%' && *(bar+1) == '%') | |
| 1482 { | |
| 1483 *foo++ = *bar++; | |
| 1484 bar++; | |
| 1485 } | |
| 1486 else | |
| 1487 *foo++ = *bar++; | |
| 1488 } | |
| 1489 *foo = '\0'; | |
| 1490 } |