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annotate src/specifier.h @ 5118:e0db3c197671 ben-lisp-object
merge up to latest default branch, doesn't compile yet
| author | Ben Wing <ben@xemacs.org> |
|---|---|
| date | Sat, 26 Dec 2009 21:18:49 -0600 |
| parents | d00347ec8289 |
| children | d1247f3cc363 |
| rev | line source |
|---|---|
| 428 | 1 /* Generic specifier list implementation |
| 2 Copyright (C) 1994, 1995 Board of Trustees, University of Illinois. | |
| 826 | 3 Copyright (C) 1995, 1996, 2002 Ben Wing |
| 428 | 4 |
| 5 This file is part of XEmacs. | |
| 6 | |
| 7 XEmacs is free software; you can redistribute it and/or modify it | |
| 8 under the terms of the GNU General Public License as published by the | |
| 9 Free Software Foundation; either version 2, or (at your option) any | |
| 10 later version. | |
| 11 | |
| 12 XEmacs is distributed in the hope that it will be useful, but WITHOUT | |
| 13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 15 for more details. | |
| 16 | |
| 17 You should have received a copy of the GNU General Public License | |
| 18 along with XEmacs; see the file COPYING. If not, write to | |
| 19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 20 Boston, MA 02111-1307, USA. */ | |
| 21 | |
| 22 /* Synched up with: Not in FSF. */ | |
| 23 | |
| 440 | 24 #ifndef INCLUDED_specifier_h_ |
| 25 #define INCLUDED_specifier_h_ | |
| 428 | 26 |
| 27 /* | |
| 28 MAGIC SPECIFIERS | |
| 29 ================ | |
| 30 | |
| 31 Magic specifiers are used to provide fallback values for window | |
| 32 system provided specifications, reflecting user preferences on the | |
| 33 window system, such as default fonts, colors, scrollbar thickness | |
| 34 etc. | |
| 35 | |
| 36 A magic specifier consists of two specifier objects. The first one | |
| 37 behaves like a normal specifier in all senses. The second one, a | |
| 38 ghost specifier, is a fallback value for the first one, and contains | |
| 39 values provided by window system, resources etc. which reflect | |
| 40 default settings for values being specified. | |
| 41 | |
| 42 A magic specifier has an "ultimate" fallback value, as any usual | |
| 43 specifier does. This value, an inst-list, is stored in the fallback | |
| 44 slot of the ghost specifier object. | |
| 45 | |
| 46 Ghost specifiers have the following properties: | |
| 47 - Have back pointers to their parent specifiers. | |
| 48 - Do not have instance data. Instead, they share parent's instance | |
| 49 data. | |
| 50 - Have the same methods structure pointer. | |
| 51 - Share parent's caching scheme. | |
| 52 - Store fallback value instead of their parents. | |
| 53 | |
| 54 Ghost specifiers normally are not modifiable at the lisp level, and | |
| 55 only used to supply fallback instance values. They are accessible | |
| 56 via (specifier-fallback), but are read-only. Although, under | |
| 57 certain rare conditions, modification of ghost objects is allowed. | |
| 58 This behavior is controlled by the global variable | |
| 59 Vunlock_ghost_specifiers. It is not exposed to lisp, and is set | |
| 60 during calls to lisp functions which initialize global, device and | |
| 61 frame defaults, such as | |
| 62 init-{global,frame,device}-{faces,toolbars,etc}. | |
| 63 | |
| 64 Thus, values supplied by resources or other means of a window system | |
| 65 stored in externally unmodifiable ghost objects. Regular lisp code | |
| 66 may thus freely modify the normal part of a magic specifier, and | |
| 67 removing a specification for a particular domain causes the | |
| 68 specification to consider ghost-provided fallback values, or its own | |
| 69 fallback value. | |
| 70 | |
| 71 Rules of conduct for magic specifiers | |
| 72 ------------------------------------- | |
| 73 1. recompute_*() functions always operate on the whole specifier | |
| 74 when passed only a ghost object, by substituting it with their | |
| 75 parent bodily object. | |
| 76 2. All specifier methods, except for instantiate method, are passed | |
| 77 the bodily object of the magic specifier. Instantiate method is | |
| 78 passed the specifier being instantiated. | |
| 79 3. Only bodily objects are passed to set_specifier_caching function, | |
| 80 and only these may be cached. | |
| 81 4. All specifiers are added to Vall_specifiers list, both bodily and | |
| 82 ghost. The pair of objects is always removed from the list at the | |
| 83 same time. | |
| 84 */ | |
| 85 | |
| 1204 | 86 extern const struct sized_memory_description specifier_methods_description; |
| 428 | 87 |
| 88 struct specifier_methods | |
| 89 { | |
| 442 | 90 const char *name; |
| 428 | 91 Lisp_Object predicate_symbol; |
| 92 | |
| 93 /* Implementation specific methods: */ | |
| 94 | |
| 95 /* Create method: Initialize specifier data. Optional. */ | |
| 96 void (*create_method) (Lisp_Object specifier); | |
| 97 | |
| 98 /* Mark method: Mark any lisp object within specifier data | |
| 99 structure. Not required if no specifier data are Lisp_Objects. */ | |
| 100 void (*mark_method) (Lisp_Object specifier); | |
| 101 | |
| 102 /* Equal method: Compare two specifiers. This is called after | |
| 103 ensuring that the two specifiers are of the same type, and have | |
| 104 the same specs. Quit is inhibited during the call so it is safe | |
| 105 to call internal_equal(). | |
| 106 | |
| 107 If this function is not present, specifiers considered equal when | |
| 108 the above conditions are met, i.e. as if the method returned | |
| 109 non-zero. */ | |
| 110 int (*equal_method) (Lisp_Object sp1, Lisp_Object sp2, int depth); | |
| 111 | |
| 112 /* Hash method: Hash specifier instance data. This has to hash only | |
| 113 data structure of the specifier, as specs are hashed by the core | |
| 114 code. | |
| 115 | |
| 116 If this function is not present, hashing behaves as if it | |
| 117 returned zero. */ | |
| 2515 | 118 Hashcode (*hash_method) (Lisp_Object specifier, int depth); |
| 428 | 119 |
| 120 /* Validate method: Given an instantiator, verify that it's | |
| 121 valid for this specifier type. If not, signal an error. | |
| 122 | |
| 123 If this function is not present, all instantiators are considered | |
| 124 valid. */ | |
| 125 void (*validate_method) (Lisp_Object instantiator); | |
| 126 | |
| 434 | 127 |
| 128 /* Copy method: Given an instantiator, copy the bits that we need to | |
| 129 for this specifier type. | |
| 130 | |
| 131 If this function is not present, then Fcopy_tree is used. */ | |
| 132 Lisp_Object (*copy_instantiator_method) (Lisp_Object instantiator); | |
| 133 | |
| 428 | 134 /* Validate-matchspec method: Given a matchspec, verify that it's |
| 135 valid for this specifier type. If not, signal an error. | |
| 136 | |
| 137 If this function is not present, *no* matchspecs are considered | |
| 138 valid. Note that this differs from validate_method(). */ | |
| 139 void (*validate_matchspec_method) (Lisp_Object matchspec); | |
| 140 | |
| 141 /* Instantiate method: Return SPECIFIER instance in DOMAIN, | |
|
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142 specified by INSTANTIATOR. MATCHSPEC specifies additional |
| 428 | 143 constraints on the instance value (see the docstring for |
| 144 Fspecifier_matching_instance function). MATCHSPEC is passed | |
| 145 Qunbound when no matching constraints are imposed. The method is | |
| 146 called via call_with_suspended_errors(), so allowed to eval | |
| 147 safely. | |
| 148 | |
| 149 DEPTH is a lisp integer denoting current depth of instantiation | |
| 150 calls. This parameter should be passed as the initial depth value | |
| 151 to functions which also instantiate specifiers (of which I can | |
| 152 name specifier_instance) to avoid creating "external" | |
| 153 specification loops. | |
| 154 | |
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155 NO_FALLBACK indicates that the method should not try the fallbacks |
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156 (and thus simply return Qunbound) in case of a failure to instantiate. |
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157 |
| 442 | 158 This method must presume that both INSTANTIATOR and MATCHSPEC are |
| 428 | 159 already validated by the corresponding validate_* methods, and |
| 160 may abort if they are invalid. | |
| 161 | |
| 162 Return value is an instance, which is returned immediately to the | |
| 163 caller, or Qunbound to continue instantiation lookup chain. | |
| 164 | |
| 165 If this function is not present, INSTANTIATOR is used as the | |
| 166 specifier instance. This is the usual case for "simple" | |
| 167 specifiers, like integer and boolean. */ | |
| 168 Lisp_Object (*instantiate_method) (Lisp_Object specifier, | |
| 169 Lisp_Object matchspec, | |
| 170 Lisp_Object domain, | |
| 171 Lisp_Object instantiator, | |
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172 Lisp_Object depth, |
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173 int no_fallback); |
| 428 | 174 |
| 175 /* Going-to-add method: Called when an instantiator is about | |
| 176 to be added to a specifier. This function can specify | |
| 177 that different instantiators should be used instead by | |
| 178 returning an inst-list (possibly containing zero elements). | |
| 179 If the instantiator is fine as-is, return Qt. The | |
| 180 instantiator has been copied with copy-tree, so feel | |
| 181 free to reuse parts of it to create a new instantiator. | |
| 182 The tag-set, however, is not copied and is not canonicalized | |
| 183 (that will be done on the result of this function). */ | |
| 184 Lisp_Object (*going_to_add_method) (Lisp_Object specifier, | |
| 185 Lisp_Object locale, | |
| 186 Lisp_Object tag_set, | |
| 187 Lisp_Object instantiator); | |
| 188 | |
| 189 /* After-change method: Called when the SPECIFIER has just been | |
| 190 changed in LOCALE. The method is called upon: | |
| 191 * Removing and adding specs to/from the specifier; | |
| 192 * Changing the specifier fallback. | |
| 193 | |
| 194 #### The method may have called more than once per each specifier | |
| 195 change. | |
| 196 | |
| 197 #### Do not still know if this can safely eval. */ | |
| 198 void (*after_change_method) (Lisp_Object specifier, | |
| 199 Lisp_Object locale); | |
| 200 | |
| 1204 | 201 /* Specifier extra data: Specifier objects can have extra data, specific |
| 202 to the type of specifier, stored at the end of the object. To have | |
| 203 this, a specifier declares a structure of type `struct TYPE_specifier' | |
| 204 containing the data and uses DEFINE_SPECIFIER_TYPE_WITH_DATA and | |
| 205 INITIALIZE_SPECIFIER_TYPE_WITH_DATA instead of the plain versions. | |
| 206 Then, a pointer to the `struct TYPE_specifier' can be obtained from a | |
| 207 specifier object using SPECIFIER_TYPE_DATA. | |
| 771 | 208 |
| 1204 | 209 A data description of the extra data must also be provided, in the |
| 210 form of a memory_description named TYPE_specifier_description. */ | |
| 211 | |
| 212 /* Description of extra data structure; initialized when | |
| 771 | 213 INITIALIZE_SPECIFIER_TYPE_WITH_DATA is called. */ |
| 1204 | 214 const struct sized_memory_description *extra_description; |
| 771 | 215 |
| 216 /* Size of extra data structure; initialized when | |
| 217 INITIALIZE_SPECIFIER_TYPE_WITH_DATA is called. */ | |
| 428 | 218 int extra_data_size; |
| 219 }; | |
| 220 | |
| 221 struct Lisp_Specifier | |
| 222 { | |
| 3017 | 223 struct LCRECORD_HEADER header; |
| 428 | 224 struct specifier_methods *methods; |
| 225 | |
| 226 /* we keep a chained list of all current specifiers, for GC cleanup | |
| 227 purposes. Do NOT mark through this, or specifiers will never | |
| 228 be GC'd. */ | |
| 229 Lisp_Object next_specifier; | |
| 230 | |
| 231 /* This is a straight list of instantiators. */ | |
| 232 Lisp_Object global_specs; | |
| 233 | |
| 234 /* These are all assoc lists where the key is the type of object the | |
| 235 list represents (buffer, window, etc.) and the associated list is | |
| 236 the actual list of instantiators. */ | |
| 237 Lisp_Object device_specs; | |
| 238 Lisp_Object frame_specs; | |
| 239 /* window_specs is actually a key-assoc weak list. See specifier.c | |
| 240 for an explanation of why (it boils down to the fact that | |
| 241 dead windows can become live again through window configurations). | |
| 242 */ | |
| 243 Lisp_Object window_specs; | |
| 244 Lisp_Object buffer_specs; | |
| 245 | |
| 246 struct specifier_caching *caching; | |
| 247 | |
| 248 /* This can be either nil, for a plain, non-magic specifier object, | |
| 249 t for the normal part of the magic specifier, or #<specifier> for | |
| 250 the ghost part of the magic specifier, a pointer to its parent | |
| 251 object */ | |
| 252 Lisp_Object magic_parent; | |
| 253 | |
| 254 /* Fallback value. For magic specifiers, it is a pointer to the ghost. */ | |
| 255 Lisp_Object fallback; | |
| 256 | |
| 257 /* type-specific extra data attached to a specifier */ | |
| 456 | 258 max_align_t data[1]; |
| 428 | 259 }; |
| 440 | 260 typedef struct Lisp_Specifier Lisp_Specifier; |
| 428 | 261 |
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262 DECLARE_LISP_OBJECT (specifier, Lisp_Specifier); |
| 440 | 263 #define XSPECIFIER(x) XRECORD (x, specifier, Lisp_Specifier) |
| 617 | 264 #define wrap_specifier(p) wrap_record (p, specifier) |
| 428 | 265 #define SPECIFIERP(x) RECORDP (x, specifier) |
| 266 #define CHECK_SPECIFIER(x) CHECK_RECORD (x, specifier) | |
| 267 #define CONCHECK_SPECIFIER(x) CONCHECK_RECORD (x, specifier) | |
| 268 | |
| 269 /***** Calling a specifier method *****/ | |
| 270 | |
| 271 #define RAW_SPECMETH(sp, m) ((sp)->methods->m##_method) | |
| 272 #define HAS_SPECMETH_P(sp, m) (!!RAW_SPECMETH (sp, m)) | |
| 273 #define SPECMETH(sp, m, args) (((sp)->methods->m##_method) args) | |
| 274 | |
| 275 /* Call a void-returning specifier method, if it exists. */ | |
| 440 | 276 #define MAYBE_SPECMETH(sp, m, args) do { \ |
| 277 Lisp_Specifier *maybe_specmeth_sp = (sp); \ | |
| 278 if (HAS_SPECMETH_P (maybe_specmeth_sp, m)) \ | |
| 279 SPECMETH (maybe_specmeth_sp, m, args); \ | |
| 428 | 280 } while (0) |
| 281 | |
| 282 /***** Defining new specifier types *****/ | |
| 283 | |
| 1204 | 284 extern const struct sized_memory_description specifier_empty_extra_description; |
| 428 | 285 |
| 800 | 286 #ifdef ERROR_CHECK_TYPES |
| 428 | 287 #define DECLARE_SPECIFIER_TYPE(type) \ |
| 288 extern struct specifier_methods * type##_specifier_methods; \ | |
| 826 | 289 DECLARE_INLINE_HEADER ( \ |
| 290 struct type##_specifier * \ | |
| 440 | 291 error_check_##type##_specifier_data (Lisp_Specifier *sp) \ |
| 826 | 292 ) \ |
| 428 | 293 { \ |
| 294 if (SPECIFIERP (sp->magic_parent)) \ | |
| 295 { \ | |
| 296 assert (SPECIFIER_TYPE_P (sp, type)); \ | |
| 297 sp = XSPECIFIER (sp->magic_parent); \ | |
| 298 } \ | |
| 299 else \ | |
| 300 assert (NILP (sp->magic_parent) || EQ (sp->magic_parent, Qt)); \ | |
| 301 assert (SPECIFIER_TYPE_P (sp, type)); \ | |
| 302 return (struct type##_specifier *) sp->data; \ | |
| 303 } \ | |
| 826 | 304 DECLARE_INLINE_HEADER ( \ |
| 305 Lisp_Specifier * \ | |
| 438 | 306 error_check_##type##_specifier_type (Lisp_Object obj) \ |
| 826 | 307 ) \ |
| 438 | 308 { \ |
| 440 | 309 Lisp_Specifier *sp = XSPECIFIER (obj); \ |
| 438 | 310 assert (SPECIFIER_TYPE_P (sp, type)); \ |
| 311 return sp; \ | |
| 312 } \ | |
| 428 | 313 DECLARE_NOTHING |
| 314 #else | |
| 442 | 315 #define DECLARE_SPECIFIER_TYPE(type) \ |
| 428 | 316 extern struct specifier_methods * type##_specifier_methods |
| 800 | 317 #endif /* ERROR_CHECK_TYPES */ |
| 428 | 318 |
| 442 | 319 #define DEFINE_SPECIFIER_TYPE(type) \ |
| 428 | 320 struct specifier_methods * type##_specifier_methods |
| 321 | |
| 1204 | 322 #define DEFINE_SPECIFIER_TYPE_WITH_DATA(type) \ |
| 323 struct specifier_methods * type##_specifier_methods; \ | |
| 324 static const struct sized_memory_description type##_specifier_description_0 \ | |
| 325 = { \ | |
| 326 sizeof (struct type##_specifier), \ | |
| 327 type##_specifier_description \ | |
| 328 } | |
| 329 | |
| 771 | 330 #define INITIALIZE_SPECIFIER_TYPE(type, obj_name, pred_sym) do { \ |
| 331 type##_specifier_methods = xnew_and_zero (struct specifier_methods); \ | |
| 332 type##_specifier_methods->name = obj_name; \ | |
| 333 type##_specifier_methods->extra_description = \ | |
| 1204 | 334 &specifier_empty_extra_description; \ |
| 771 | 335 defsymbol_nodump (&type##_specifier_methods->predicate_symbol, pred_sym); \ |
| 336 add_entry_to_specifier_type_list (Q##type, type##_specifier_methods); \ | |
| 2367 | 337 dump_add_root_block_ptr (&type##_specifier_methods, \ |
| 771 | 338 &specifier_methods_description); \ |
| 428 | 339 } while (0) |
| 340 | |
| 442 | 341 #define REINITIALIZE_SPECIFIER_TYPE(type) do { \ |
| 428 | 342 staticpro_nodump (&type##_specifier_methods->predicate_symbol); \ |
| 343 } while (0) | |
| 344 | |
| 345 #define INITIALIZE_SPECIFIER_TYPE_WITH_DATA(type, obj_name, pred_sym) \ | |
| 346 do { \ | |
| 347 INITIALIZE_SPECIFIER_TYPE (type, obj_name, pred_sym); \ | |
| 348 type##_specifier_methods->extra_data_size = \ | |
| 349 sizeof (struct type##_specifier); \ | |
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350 type##_specifier_methods->extra_description = \ |
| 1204 | 351 &type##_specifier_description_0; \ |
| 428 | 352 } while (0) |
| 353 | |
| 354 /* Declare that specifier-type TYPE has method METH; used in | |
| 355 initialization routines */ | |
| 356 #define SPECIFIER_HAS_METHOD(type, meth) \ | |
| 357 (type##_specifier_methods->meth##_method = type##_##meth) | |
| 358 | |
| 359 /***** Macros for accessing specifier types *****/ | |
| 360 | |
| 361 #define SPECIFIER_TYPE_P(sp, type) \ | |
| 362 ((sp)->methods == type##_specifier_methods) | |
| 363 | |
| 364 /* Any of the two of the magic spec */ | |
| 365 #define MAGIC_SPECIFIER_P(sp) (!NILP((sp)->magic_parent)) | |
| 366 /* Normal part of the magic specifier */ | |
| 367 #define BODILY_SPECIFIER_P(sp) EQ ((sp)->magic_parent, Qt) | |
| 368 /* Ghost part of the magic specifier */ | |
| 369 #define GHOST_SPECIFIER_P(sp) SPECIFIERP((sp)->magic_parent) | |
| 370 | |
| 371 #define GHOST_SPECIFIER(sp) XSPECIFIER ((sp)->fallback) | |
| 372 | |
| 800 | 373 #ifdef ERROR_CHECK_TYPES |
| 428 | 374 # define SPECIFIER_TYPE_DATA(sp, type) \ |
| 375 error_check_##type##_specifier_data (sp) | |
| 376 #else | |
| 377 # define SPECIFIER_TYPE_DATA(sp, type) \ | |
| 378 ((struct type##_specifier *) \ | |
| 379 (GHOST_SPECIFIER_P(sp) \ | |
| 380 ? XSPECIFIER((sp)->magic_parent)->data \ | |
| 381 : (sp)->data)) | |
| 382 #endif | |
| 383 | |
| 800 | 384 #ifdef ERROR_CHECK_TYPES |
| 438 | 385 # define XSPECIFIER_TYPE(x, type) \ |
| 386 error_check_##type##_specifier_type (x) | |
| 387 #else | |
| 388 # define XSPECIFIER_TYPE(x, type) XSPECIFIER (x) | |
| 800 | 389 #endif /* ERROR_CHECK_TYPES */ |
| 428 | 390 |
| 442 | 391 #define SPECIFIER_TYPEP(x, type) \ |
| 428 | 392 (SPECIFIERP (x) && SPECIFIER_TYPE_P (XSPECIFIER (x), type)) |
| 393 #define CHECK_SPECIFIER_TYPE(x, type) do { \ | |
| 394 CHECK_SPECIFIER (x); \ | |
| 395 if (!SPECIFIER_TYPE_P (XSPECIFIER (x), type)) \ | |
| 396 dead_wrong_type_argument \ | |
| 397 (type##_specifier_methods->predicate_symbol, x); \ | |
| 398 } while (0) | |
| 399 #define CONCHECK_SPECIFIER_TYPE(x, type) do { \ | |
| 400 CONCHECK_SPECIFIER (x); \ | |
| 401 if (!(SPECIFIER_TYPEP (x, type))) \ | |
| 402 x = wrong_type_argument \ | |
| 403 (type##_specifier_methods->predicate_symbol, x); \ | |
| 404 } while (0) | |
| 405 | |
| 406 /***** Miscellaneous structures *****/ | |
| 407 | |
| 408 enum spec_locale_type | |
| 409 { | |
| 410 LOCALE_GLOBAL, | |
| 411 LOCALE_DEVICE, | |
| 412 LOCALE_FRAME, | |
| 413 LOCALE_WINDOW, | |
| 414 LOCALE_BUFFER | |
| 415 }; | |
| 416 | |
| 417 enum spec_add_meth | |
| 418 { | |
| 419 SPEC_PREPEND, | |
| 420 SPEC_APPEND, | |
| 421 SPEC_REMOVE_TAG_SET_PREPEND, | |
| 422 SPEC_REMOVE_TAG_SET_APPEND, | |
| 423 SPEC_REMOVE_LOCALE, | |
| 424 SPEC_REMOVE_LOCALE_TYPE, | |
| 425 SPEC_REMOVE_ALL | |
| 426 }; | |
| 427 | |
| 428 struct specifier_caching | |
| 429 { | |
| 3092 | 430 #ifdef NEW_GC |
| 431 struct lrecord_header header; | |
| 432 #endif /* NEW_GC */ | |
| 428 | 433 int offset_into_struct_window; |
| 434 void (*value_changed_in_window) (Lisp_Object specifier, struct window *w, | |
| 435 Lisp_Object oldval); | |
| 436 int offset_into_struct_frame; | |
| 437 void (*value_changed_in_frame) (Lisp_Object specifier, struct frame *f, | |
| 438 Lisp_Object oldval); | |
| 444 | 439 int always_recompute; |
| 428 | 440 }; |
| 441 | |
| 3092 | 442 #ifdef NEW_GC |
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443 DECLARE_LISP_OBJECT (specifier_caching, struct specifier_caching); |
| 3092 | 444 #define XSPECIFIER_CACHING(x) \ |
| 445 XRECORD (x, specifier_caching, struct specifier_caching) | |
| 446 #define wrap_specifier_caching(p) \ | |
| 447 wrap_record (p, specifier_caching) | |
| 448 #define SPECIFIER_CACHINGP(x) RECORDP (x, specifier_caching) | |
| 449 #define CHECK_SPECIFIER_CACHING(x) \ | |
| 450 CHECK_RECORD (x, specifier_caching) | |
| 451 #define CONCHECK_SPECIFIER_CACHING(x) \ | |
| 452 CONCHECK_RECORD (x, specifier_caching) | |
| 453 #endif /* NEW_GC */ | |
| 454 | |
| 442 | 455 /* #### get image instances out of domains! */ |
| 456 | |
| 2500 | 457 /* #### I think the following should ABORT() rather than return nil |
| 442 | 458 when an invalid domain is given; much more likely we'll catch design |
| 459 errors early. --ben */ | |
| 460 | |
| 461 /* This turns out to be used heavily so we make it a macro to make it | |
| 462 inline. Also, the majority of the time the object will turn out to | |
| 463 be a window so we move it from being checked last to being checked | |
| 464 first. */ | |
| 465 #define DOMAIN_DEVICE(obj) \ | |
| 466 (WINDOWP (obj) ? WINDOW_DEVICE (XWINDOW (obj)) \ | |
| 467 : (FRAMEP (obj) ? FRAME_DEVICE (XFRAME (obj)) \ | |
| 468 : (DEVICEP (obj) ? obj \ | |
| 469 : (IMAGE_INSTANCEP (obj) ? image_instance_device (obj) \ | |
| 470 : Qnil)))) | |
| 471 | |
| 472 #define DOMAIN_FRAME(obj) \ | |
| 473 (WINDOWP (obj) ? WINDOW_FRAME (XWINDOW (obj)) \ | |
| 474 : (FRAMEP (obj) ? obj \ | |
| 475 : (IMAGE_INSTANCEP (obj) ? image_instance_frame (obj) \ | |
| 476 : Qnil))) | |
| 477 | |
| 478 #define DOMAIN_WINDOW(obj) \ | |
| 479 (WINDOWP (obj) ? obj \ | |
| 480 : (IMAGE_INSTANCEP (obj) ? image_instance_window (obj) \ | |
| 481 : Qnil)) | |
| 482 | |
| 483 #define DOMAIN_LIVE_P(obj) \ | |
| 484 (WINDOWP (obj) ? WINDOW_LIVE_P (XWINDOW (obj)) \ | |
| 485 : (FRAMEP (obj) ? FRAME_LIVE_P (XFRAME (obj)) \ | |
| 486 : (DEVICEP (obj) ? DEVICE_LIVE_P (XDEVICE (obj)) \ | |
| 487 : (IMAGE_INSTANCEP (obj) ? image_instance_live_p (obj) \ | |
| 488 : 0)))) | |
| 489 | |
| 490 #define DOMAIN_XDEVICE(obj) \ | |
| 491 (XDEVICE (DOMAIN_DEVICE (obj))) | |
| 492 #define DOMAIN_XFRAME(obj) \ | |
| 493 (XFRAME (DOMAIN_FRAME (obj))) | |
| 494 #define DOMAIN_XWINDOW(obj) \ | |
| 495 (XWINDOW (DOMAIN_WINDOW (obj))) | |
| 496 | |
| 428 | 497 EXFUN (Fcopy_specifier, 6); |
| 498 EXFUN (Fmake_specifier, 1); | |
| 499 EXFUN (Fset_specifier_dirty_flag, 1); | |
| 500 EXFUN (Fspecifier_instance, 4); | |
| 501 EXFUN (Fvalid_specifier_locale_p, 1); | |
| 502 | |
| 503 extern Lisp_Object Qfallback, Qnatnum; | |
| 504 | |
| 505 Lisp_Object make_magic_specifier (Lisp_Object type); | |
| 506 Lisp_Object decode_locale_list (Lisp_Object locale); | |
| 507 extern enum spec_add_meth | |
| 508 decode_how_to_add_specification (Lisp_Object how_to_add); | |
| 509 Lisp_Object decode_specifier_tag_set (Lisp_Object tag_set); | |
| 442 | 510 Lisp_Object decode_domain (Lisp_Object domain); |
| 428 | 511 |
| 512 void add_entry_to_specifier_type_list (Lisp_Object symbol, | |
| 513 struct specifier_methods *meths); | |
| 514 void set_specifier_caching (Lisp_Object specifier, | |
| 515 int struct_window_offset, | |
| 516 void (*value_changed_in_window) | |
| 517 (Lisp_Object specifier, struct window *w, | |
| 518 Lisp_Object oldval), | |
| 519 int struct_frame_offset, | |
| 520 void (*value_changed_in_frame) | |
| 521 (Lisp_Object specifier, struct frame *f, | |
| 444 | 522 Lisp_Object oldval), |
| 523 int always_recompute); | |
| 428 | 524 void set_specifier_fallback (Lisp_Object specifier, |
| 525 Lisp_Object fallback); | |
| 526 void recompute_all_cached_specifiers_in_window (struct window *w); | |
| 527 void recompute_all_cached_specifiers_in_frame (struct frame *f); | |
| 528 | |
| 529 /* Counterparts of Fadd_spec_to_specifier and Fremove_specifier, which | |
| 530 operate directly on ghost objects given a magic specifier. */ | |
| 531 void add_spec_to_ghost_specifier (Lisp_Object specifier, Lisp_Object instantiator, | |
| 532 Lisp_Object locale, Lisp_Object tag_set, | |
| 533 Lisp_Object how_to_add); | |
| 534 void remove_ghost_specifier (Lisp_Object specifier, Lisp_Object locale, | |
| 535 Lisp_Object tag_set, Lisp_Object exact_p); | |
| 536 | |
| 537 int unlock_ghost_specifiers_protected (void); | |
| 538 | |
| 539 void cleanup_specifiers (void); | |
| 540 void prune_specifiers (void); | |
| 541 void setup_device_initial_specifier_tags (struct device *d); | |
| 3659 | 542 void setup_charset_initial_specifier_tags (Lisp_Object charset); |
| 428 | 543 void kill_specifier_buffer_locals (Lisp_Object buffer); |
| 544 | |
| 545 DECLARE_SPECIFIER_TYPE (generic); | |
| 546 #define XGENERIC_SPECIFIER(x) XSPECIFIER_TYPE (x, generic) | |
| 547 #define GENERIC_SPECIFIERP(x) SPECIFIER_TYPEP (x, generic) | |
| 548 #define CHECK_GENERIC_SPECIFIER(x) CHECK_SPECIFIER_TYPE (x, generic) | |
| 549 #define CONCHECK_GENERIC_SPECIFIER(x) CONCHECK_SPECIFIER_TYPE (x, generic) | |
| 550 | |
| 551 DECLARE_SPECIFIER_TYPE (integer); | |
| 552 #define XINTEGER_SPECIFIER(x) XSPECIFIER_TYPE (x, integer) | |
| 553 #define INTEGER_SPECIFIERP(x) SPECIFIER_TYPEP (x, integer) | |
| 554 #define CHECK_INTEGER_SPECIFIER(x) CHECK_SPECIFIER_TYPE (x, integer) | |
| 555 #define CONCHECK_INTEGER_SPECIFIER(x) CONCHECK_SPECIFIER_TYPE (x, integer) | |
| 556 | |
| 557 DECLARE_SPECIFIER_TYPE (natnum); | |
| 558 #define XNATNUM_SPECIFIER(x) XSPECIFIER_TYPE (x, natnum) | |
| 559 #define NATNUM_SPECIFIERP(x) SPECIFIER_TYPEP (x, natnum) | |
| 560 #define CHECK_NATNUM_SPECIFIER(x) CHECK_SPECIFIER_TYPE (x, natnum) | |
| 561 #define CONCHECK_NATNUM_SPECIFIER(x) CONCHECK_SPECIFIER_TYPE (x, natnum) | |
| 562 | |
| 563 DECLARE_SPECIFIER_TYPE (boolean); | |
| 564 #define XBOOLEAN_SPECIFIER(x) XSPECIFIER_TYPE (x, boolean) | |
| 565 #define BOOLEAN_SPECIFIERP(x) SPECIFIER_TYPEP (x, boolean) | |
| 566 #define CHECK_BOOLEAN_SPECIFIER(x) CHECK_SPECIFIER_TYPE (x, boolean) | |
| 567 #define CONCHECK_BOOLEAN_SPECIFIER(x) CONCHECK_SPECIFIER_TYPE (x, boolean) | |
| 568 | |
| 569 DECLARE_SPECIFIER_TYPE (display_table); | |
| 570 #define XDISPLAYTABLE_SPECIFIER(x) XSPECIFIER_TYPE (x, display_table) | |
| 571 #define DISPLAYTABLE_SPECIFIERP(x) SPECIFIER_TYPEP (x, display_table) | |
| 572 #define CHECK_DISPLAYTABLE_SPECIFIER(x) CHECK_SPECIFIER_TYPE (x, display_table) | |
| 573 #define CONCHECK_DISPLAYTABLE_SPECIFIER(x) CONCHECK_SPECIFIER_TYPE (x, display_table) | |
| 574 | |
| 3659 | 575 /* The various stages of font instantiation; initial means "find a font for |
| 576 CHARSET that matches the charset's registries" and final means "find a | |
| 577 font for CHARSET that matches iso10646-1, since we haven't found a font | |
| 578 that matches its registry." */ | |
| 579 enum font_specifier_matchspec_stages { | |
|
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580 initial, |
| 3659 | 581 final, |
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582 impossible, |
| 3659 | 583 }; |
| 584 | |
| 585 Lisp_Object define_specifier_tag(Lisp_Object tag, | |
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parents:
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diff
changeset
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586 Lisp_Object device_predicate, |
| 3659 | 587 Lisp_Object charset_predicate); |
| 588 | |
| 440 | 589 #endif /* INCLUDED_specifier_h_ */ |