Commit | Line | Data |
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4ed46869 | 1 | /* Fontset handler. |
0d407d77 | 2 | Copyright (C) 1995, 1997, 2000 Electrotechnical Laboratory, JAPAN. |
75c8c592 | 3 | Licensed to the Free Software Foundation. |
06f76f0d KH |
4 | Copyright (C) 2001, 2002 |
5 | National Institute of Advanced Industrial Science and Technology (AIST) | |
6 | Registration Number H13PRO009 | |
4ed46869 | 7 | |
369314dc KH |
8 | This file is part of GNU Emacs. |
9 | ||
10 | GNU Emacs is free software; you can redistribute it and/or modify | |
11 | it under the terms of the GNU General Public License as published by | |
12 | the Free Software Foundation; either version 2, or (at your option) | |
13 | any later version. | |
4ed46869 | 14 | |
369314dc KH |
15 | GNU Emacs is distributed in the hope that it will be useful, |
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | GNU General Public License for more details. | |
4ed46869 | 19 | |
369314dc KH |
20 | You should have received a copy of the GNU General Public License |
21 | along with GNU Emacs; see the file COPYING. If not, write to | |
22 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
23 | Boston, MA 02111-1307, USA. */ | |
4ed46869 | 24 | |
0d407d77 KH |
25 | /* #define FONTSET_DEBUG */ |
26 | ||
4ed46869 | 27 | #include <config.h> |
0d407d77 KH |
28 | |
29 | #ifdef FONTSET_DEBUG | |
30 | #include <stdio.h> | |
31 | #endif | |
32 | ||
4ed46869 | 33 | #include "lisp.h" |
06f76f0d | 34 | #include "blockinput.h" |
1ff005e1 | 35 | #include "buffer.h" |
06f76f0d | 36 | #include "character.h" |
4ed46869 KH |
37 | #include "charset.h" |
38 | #include "ccl.h" | |
2538fae4 | 39 | #include "keyboard.h" |
4ed46869 | 40 | #include "frame.h" |
0d407d77 | 41 | #include "dispextern.h" |
3541bb8f | 42 | #include "fontset.h" |
0d407d77 KH |
43 | #include "window.h" |
44 | ||
45 | #ifdef FONTSET_DEBUG | |
46 | #undef xassert | |
47 | #define xassert(X) do {if (!(X)) abort ();} while (0) | |
48 | #undef INLINE | |
49 | #define INLINE | |
50 | #endif | |
51 | ||
a980c932 | 52 | EXFUN (Fclear_face_cache, 1); |
0d407d77 KH |
53 | |
54 | /* FONTSET | |
55 | ||
56 | A fontset is a collection of font related information to give | |
1d5d7200 KH |
57 | similar appearance (style, etc) of characters. A fontset has two |
58 | roles. One is to use for the frame parameter `font' as if it is an | |
59 | ASCII font. In that case, Emacs uses the font specified for | |
60 | `ascii' script for the frame's default font. | |
61 | ||
62 | Another role, the more important one, is to provide information | |
63 | about which font to use for each non-ASCII character. | |
64 | ||
65 | There are two kinds of fontsets; base and realized. A base fontset | |
66 | is created by `new-fontset' from Emacs Lisp explicitly. A realized | |
67 | fontset is created implicitly when a face is realized for ASCII | |
68 | characters. A face is also realized for non-ASCII characters based | |
69 | on an ASCII face. All of non-ASCII faces based on the same ASCII | |
70 | face share the same realized fontset. | |
06f76f0d KH |
71 | |
72 | A fontset object is implemented by a char-table whose default value | |
73 | and parent are always nil. | |
fc8865fc | 74 | |
1d5d7200 KH |
75 | An element of a base fontset is a vector of FONT-DEFs which itself |
76 | is a vector [ FONT-SPEC ENCODING REPERTORY ]. | |
77 | ||
78 | FONT-SPEC is: | |
79 | [ FAMILY WEIGHT SLANT SWIDTH ADSTYLE REGISTRY ] | |
06f76f0d | 80 | or |
1d5d7200 KH |
81 | FONT-NAME |
82 | where FAMILY, WEIGHT, SLANT, SWIDTH, ADSTYLE, REGISTRY, and | |
83 | FONT-NAME are strings. | |
84 | ||
85 | ENCODING is a charset ID or a char-table that can convert | |
86 | characters to glyph codes of the corresponding font. | |
87 | ||
88 | REPERTORY is a charset ID or nil. If REPERTORY is a charset ID, | |
89 | the repertory of the charset exactly matches with that of the font. | |
90 | If REPERTORY is nil, we consult with the font itself to get the | |
91 | repertory. | |
92 | ||
93 | ENCODING and REPERTORY are extracted from the variable | |
94 | Vfont_encoding_alist by using a font name generated form FONT-SPEC | |
95 | (if it is a vector) or FONT-NAME as a key. | |
96 | ||
97 | ||
98 | An element of a realized fontset is nil or t, or has this form: | |
99 | ||
100 | ( CHARSET-PRIORITY-LIST-TICK . FONT-VECTOR ) | |
101 | ||
102 | FONT-VECTOR is a vector whose elements have this form: | |
103 | ||
104 | [ FACE-ID FONT-INDEX FONT-DEF ] | |
0d407d77 | 105 | |
1d5d7200 KH |
106 | FONT-VECTOR is automatically reordered by the current charset |
107 | priority list. | |
0d407d77 | 108 | |
1d5d7200 KH |
109 | The value nil means that we have not yet generated FONT-VECTOR from |
110 | the base of the fontset. | |
0d407d77 | 111 | |
1d5d7200 KH |
112 | The value t means that no font is available for the corresponding |
113 | range of characters. | |
0d407d77 | 114 | |
0d407d77 | 115 | |
1d5d7200 | 116 | A fontset has 5 extra slots. |
0d407d77 | 117 | |
1d5d7200 | 118 | The 1st slot: the ID number of the fontset |
06f76f0d | 119 | |
1d5d7200 KH |
120 | The 2nd slot: |
121 | base: the name of the fontset | |
122 | realized: nil | |
06f76f0d | 123 | |
1d5d7200 KH |
124 | The 3rd slot: |
125 | base: nli | |
126 | realized: the base fontset | |
06f76f0d | 127 | |
1d5d7200 KH |
128 | The 4th slot: |
129 | base: nil | |
130 | realized: the frame that the fontset belongs to | |
0d407d77 | 131 | |
1d5d7200 KH |
132 | The 5th slot: |
133 | base: the font name for ASCII characters | |
134 | realized: nil | |
0d407d77 | 135 | |
1d5d7200 KH |
136 | The 6th slot: |
137 | base: nil | |
138 | realized: the ID number of a face to use for characters that | |
139 | has no font in a realized fontset. | |
0d407d77 | 140 | |
1d5d7200 KH |
141 | The 7th slot: |
142 | base: nil | |
143 | realized: Alist of font index vs the corresponding repertory | |
144 | char-table. | |
145 | ||
146 | ||
147 | All fontsets are recorded in the vector Vfontset_table. | |
0d407d77 KH |
148 | |
149 | ||
150 | DEFAULT FONTSET | |
151 | ||
1d5d7200 KH |
152 | There's a special base fontset named `default fontset' which |
153 | defines the default font specifications. When a base fontset | |
154 | doesn't specify a font for a specific character, the corresponding | |
155 | value in the default fontset is used. | |
0d407d77 | 156 | |
afe93d01 KH |
157 | The parent of a realized fontset created for such a face that has |
158 | no fontset is the default fontset. | |
0d407d77 KH |
159 | |
160 | ||
161 | These structures are hidden from the other codes than this file. | |
162 | The other codes handle fontsets only by their ID numbers. They | |
06f76f0d KH |
163 | usually use the variable name `fontset' for IDs. But, in this |
164 | file, we always use varialbe name `id' for IDs, and name `fontset' | |
1d5d7200 | 165 | for an actual fontset object, i.e., char-table. |
0d407d77 KH |
166 | |
167 | */ | |
168 | ||
169 | /********** VARIABLES and FUNCTION PROTOTYPES **********/ | |
170 | ||
171 | extern Lisp_Object Qfont; | |
172 | Lisp_Object Qfontset; | |
1d5d7200 | 173 | static Lisp_Object Qprepend, Qappend; |
0d407d77 KH |
174 | |
175 | /* Vector containing all fontsets. */ | |
176 | static Lisp_Object Vfontset_table; | |
177 | ||
fc8865fc | 178 | /* Next possibly free fontset ID. Usually this keeps the minimum |
0d407d77 KH |
179 | fontset ID not yet used. */ |
180 | static int next_fontset_id; | |
181 | ||
182 | /* The default fontset. This gives default FAMILY and REGISTRY of | |
06f76f0d | 183 | font for each character. */ |
0d407d77 | 184 | static Lisp_Object Vdefault_fontset; |
4ed46869 | 185 | |
4ed46869 | 186 | Lisp_Object Vfont_encoding_alist; |
6a7e6d80 | 187 | Lisp_Object Vuse_default_ascent; |
2aeafb78 | 188 | Lisp_Object Vignore_relative_composition; |
01d4b817 | 189 | Lisp_Object Valternate_fontname_alist; |
1c283e35 | 190 | Lisp_Object Vfontset_alias_alist; |
810abb87 | 191 | Lisp_Object Vvertical_centering_font_regexp; |
4ed46869 | 192 | |
0d407d77 KH |
193 | /* The following six are declarations of callback functions depending |
194 | on window system. See the comments in src/fontset.h for more | |
195 | detail. */ | |
4ed46869 KH |
196 | |
197 | /* Return a pointer to struct font_info of font FONT_IDX of frame F. */ | |
5771dcf4 | 198 | struct font_info *(*get_font_info_func) P_ ((FRAME_PTR f, int font_idx)); |
4ed46869 | 199 | |
fc8865fc PJ |
200 | /* Return a list of font names which matches PATTERN. See the documentation |
201 | of `x-list-fonts' for more details. */ | |
3541bb8f KH |
202 | Lisp_Object (*list_fonts_func) P_ ((struct frame *f, |
203 | Lisp_Object pattern, | |
204 | int size, | |
205 | int maxnames)); | |
4ed46869 KH |
206 | |
207 | /* Load a font named NAME for frame F and return a pointer to the | |
208 | information of the loaded font. If loading is failed, return 0. */ | |
5771dcf4 | 209 | struct font_info *(*load_font_func) P_ ((FRAME_PTR f, char *name, int)); |
4ed46869 KH |
210 | |
211 | /* Return a pointer to struct font_info of a font named NAME for frame F. */ | |
5771dcf4 | 212 | struct font_info *(*query_font_func) P_ ((FRAME_PTR f, char *name)); |
4ed46869 KH |
213 | |
214 | /* Additional function for setting fontset or changing fontset | |
215 | contents of frame F. */ | |
5771dcf4 AS |
216 | void (*set_frame_fontset_func) P_ ((FRAME_PTR f, Lisp_Object arg, |
217 | Lisp_Object oldval)); | |
4ed46869 | 218 | |
727fb790 KH |
219 | /* To find a CCL program, fs_load_font calls this function. |
220 | The argument is a pointer to the struct font_info. | |
fc8865fc | 221 | This function set the member `encoder' of the structure. */ |
727fb790 KH |
222 | void (*find_ccl_program_func) P_ ((struct font_info *)); |
223 | ||
1d5d7200 KH |
224 | Lisp_Object (*get_font_repertory_func) P_ ((struct frame *, |
225 | struct font_info *)); | |
226 | ||
4ed46869 | 227 | /* Check if any window system is used now. */ |
5771dcf4 | 228 | void (*check_window_system_func) P_ ((void)); |
4ed46869 | 229 | |
0d407d77 KH |
230 | |
231 | /* Prototype declarations for static functions. */ | |
b11a4ed7 DL |
232 | static Lisp_Object fontset_add P_ ((Lisp_Object, Lisp_Object, Lisp_Object, |
233 | Lisp_Object)); | |
0d407d77 | 234 | static Lisp_Object make_fontset P_ ((Lisp_Object, Lisp_Object, Lisp_Object)); |
0d407d77 | 235 | static Lisp_Object fontset_pattern_regexp P_ ((Lisp_Object)); |
1d5d7200 KH |
236 | static void accumulate_script_ranges P_ ((Lisp_Object, Lisp_Object, |
237 | Lisp_Object)); | |
6ab1fb6a | 238 | static Lisp_Object find_font_encoding P_ ((char *)); |
0d407d77 | 239 | |
556383ac KH |
240 | #ifdef FONTSET_DEBUG |
241 | ||
242 | /* Return 1 if ID is a valid fontset id, else return 0. */ | |
243 | ||
244 | static int | |
245 | fontset_id_valid_p (id) | |
246 | int id; | |
247 | { | |
248 | return (id >= 0 && id < ASIZE (Vfontset_table) - 1); | |
249 | } | |
250 | ||
251 | #endif | |
252 | ||
253 | ||
0d407d77 KH |
254 | \f |
255 | /********** MACROS AND FUNCTIONS TO HANDLE FONTSET **********/ | |
256 | ||
0d407d77 KH |
257 | /* Return the fontset with ID. No check of ID's validness. */ |
258 | #define FONTSET_FROM_ID(id) AREF (Vfontset_table, id) | |
259 | ||
afe93d01 | 260 | /* Macros to access special values of FONTSET. */ |
0d407d77 | 261 | #define FONTSET_ID(fontset) XCHAR_TABLE (fontset)->extras[0] |
06f76f0d KH |
262 | |
263 | /* Macros to access special values of (base) FONTSET. */ | |
0d407d77 | 264 | #define FONTSET_NAME(fontset) XCHAR_TABLE (fontset)->extras[1] |
06f76f0d KH |
265 | #define FONTSET_ASCII(fontset) XCHAR_TABLE (fontset)->extras[4] |
266 | ||
267 | #define BASE_FONTSET_P(fontset) STRINGP (FONTSET_NAME (fontset)) | |
0d407d77 | 268 | |
06f76f0d KH |
269 | /* Macros to access special values of (realized) FONTSET. */ |
270 | #define FONTSET_BASE(fontset) XCHAR_TABLE (fontset)->extras[2] | |
271 | #define FONTSET_FRAME(fontset) XCHAR_TABLE (fontset)->extras[3] | |
1d5d7200 KH |
272 | #define FONTSET_NOFONT_FACE(fontset) XCHAR_TABLE (fontset)->extras[5] |
273 | #define FONTSET_REPERTORY(fontset) XCHAR_TABLE (fontset)->extras[6] | |
0d407d77 KH |
274 | |
275 | ||
1d5d7200 KH |
276 | /* Return the element of FONTSET for the character C. If FONTSET is a |
277 | base fontset other then the default fontset and FONTSET doesn't | |
278 | contain information for C, return the information in the default | |
279 | fontset. */ | |
0d407d77 | 280 | |
1d5d7200 KH |
281 | #define FONTSET_REF(fontset, c) \ |
282 | (EQ (fontset, Vdefault_fontset) \ | |
283 | ? CHAR_TABLE_REF (fontset, c) \ | |
284 | : fontset_ref ((fontset), (c))) | |
0d407d77 | 285 | |
afe93d01 | 286 | static Lisp_Object |
0d407d77 KH |
287 | fontset_ref (fontset, c) |
288 | Lisp_Object fontset; | |
289 | int c; | |
290 | { | |
06f76f0d KH |
291 | Lisp_Object elt; |
292 | ||
1d5d7200 KH |
293 | elt = CHAR_TABLE_REF (fontset, c); |
294 | if (NILP (elt) && ! EQ (fontset, Vdefault_fontset) | |
295 | /* Don't check Vdefault_fontset for a realized fontset. */ | |
296 | && NILP (FONTSET_BASE (fontset))) | |
297 | elt = CHAR_TABLE_REF (Vdefault_fontset, c); | |
298 | return elt; | |
299 | } | |
300 | ||
301 | ||
302 | /* Return the element of FONTSET for the character C, set FROM and TO | |
303 | to the range of characters around C that have the same value as C. | |
304 | If FONTSET is a base fontset other then the default fontset and | |
305 | FONTSET doesn't contain information for C, return the information | |
306 | in the default fontset. */ | |
307 | ||
308 | #define FONTSET_REF_AND_RANGE(fontset, c, form, to) \ | |
309 | (EQ (fontset, Vdefault_fontset) \ | |
310 | ? char_table_ref_and_range (fontset, c, &from, &to) \ | |
311 | : fontset_ref_and_range (fontset, c, &from, &to)) | |
312 | ||
313 | static Lisp_Object | |
314 | fontset_ref_and_range (fontset, c, from, to) | |
315 | Lisp_Object fontset; | |
316 | int c; | |
317 | int *from, *to; | |
318 | { | |
319 | Lisp_Object elt; | |
320 | ||
321 | elt = char_table_ref_and_range (fontset, c, from, to); | |
322 | if (NILP (elt) && ! EQ (fontset, Vdefault_fontset) | |
323 | /* Don't check Vdefault_fontset for a realized fontset. */ | |
324 | && NILP (FONTSET_BASE (fontset))) | |
06f76f0d | 325 | { |
1d5d7200 | 326 | int from1, to1; |
06f76f0d | 327 | |
1d5d7200 KH |
328 | elt = char_table_ref_and_range (Vdefault_fontset, c, &from1, &to1); |
329 | if (*from < from1) | |
330 | *from = from1; | |
331 | if (*to > to1) | |
332 | *to = to1; | |
06f76f0d | 333 | } |
0d407d77 KH |
334 | return elt; |
335 | } | |
336 | ||
337 | ||
1d5d7200 KH |
338 | /* Set elements of FONTSET for characters in RANGE to the value ELT. |
339 | RANGE is a cons (FROM . TO), where FROM and TO are character codes | |
340 | specifying a range. */ | |
341 | ||
342 | #define FONTSET_SET(fontset, range, elt) \ | |
343 | Fset_char_table_range ((fontset), (range), (elt)) | |
344 | ||
0d407d77 | 345 | |
1d5d7200 KH |
346 | /* Modify the elements of FONTSET for characters in RANGE by replacing |
347 | with ELT or adding ETL. RANGE is a cons (FROM . TO), where FROM | |
348 | and TO are character codes specifying a range. If ADD is nil, | |
349 | replace with ELT, if ADD is `prepend', prepend ELT, otherwise, | |
350 | append ELT. */ | |
351 | ||
352 | #define FONTSET_ADD(fontset, range, elt, add) \ | |
353 | (NILP (add) \ | |
354 | ? Fset_char_table_range ((fontset), (range), \ | |
355 | Fmake_vector (make_number (1), (elt))) \ | |
356 | : fontset_add ((fontset), (range), (elt), (add))) | |
0d407d77 | 357 | |
b11a4ed7 | 358 | static Lisp_Object |
1d5d7200 | 359 | fontset_add (fontset, range, elt, add) |
00c4da0f | 360 | Lisp_Object fontset, range, elt, add; |
06f76f0d | 361 | { |
1d5d7200 KH |
362 | int from, to, from1, to1; |
363 | Lisp_Object elt1; | |
364 | ||
365 | from = XINT (XCAR (range)); | |
366 | to = XINT (XCDR (range)); | |
367 | do { | |
368 | elt1 = char_table_ref_and_range (fontset, from, &from1, &to1); | |
369 | if (NILP (elt1)) | |
370 | elt1 = Fmake_vector (make_number (1), elt); | |
371 | else | |
372 | { | |
373 | int i, i0 = 1, i1 = ASIZE (elt1) + 1; | |
374 | Lisp_Object new; | |
375 | ||
00c4da0f | 376 | new = Fmake_vector (make_number (i1), elt); |
1d5d7200 KH |
377 | if (EQ (add, Qappend)) |
378 | i0--, i1--; | |
379 | for (i = 0; i0 < i1; i++, i0++) | |
380 | ASET (new, i0, AREF (elt1, i)); | |
381 | elt1 = new; | |
382 | } | |
383 | char_table_set_range (fontset, from, to1, elt1); | |
384 | from = to1 + 1; | |
385 | } while (from < to); | |
b11a4ed7 | 386 | return Qnil; |
1d5d7200 KH |
387 | } |
388 | ||
389 | ||
390 | /* Update FONTSET_ELEMENT which has this form: | |
391 | ( CHARSET-PRIORITY-LIST-TICK . FONT-VECTOR). | |
392 | Reorder FONT-VECTOR according to the current order of charset | |
393 | (Vcharset_ordered_list), and update CHARSET-PRIORITY-LIST-TICK to | |
394 | the latest value. */ | |
395 | ||
396 | static void | |
397 | reorder_font_vector (fontset_element) | |
398 | Lisp_Object fontset_element; | |
399 | { | |
400 | Lisp_Object vec, list, *new_vec; | |
401 | int size; | |
402 | int *charset_id_table; | |
403 | int i, idx; | |
404 | ||
405 | XSETCAR (fontset_element, make_number (charset_ordered_list_tick)); | |
406 | vec = XCDR (fontset_element); | |
407 | size = ASIZE (vec); | |
408 | if (size < 2) | |
409 | /* No need of reordering VEC. */ | |
410 | return; | |
411 | charset_id_table = (int *) alloca (sizeof (int) * size); | |
412 | new_vec = (Lisp_Object *) alloca (sizeof (Lisp_Object) * size); | |
413 | /* At first, extract ENCODING (a chaset ID) from VEC. VEC has this | |
414 | form: | |
415 | [[FACE-ID FONT-INDEX [ FONT-SPEC ENCODING REPERTORY ]] ...] */ | |
416 | for (i = 0; i < size; i++) | |
417 | charset_id_table[i] = XINT (AREF (AREF (AREF (vec, i), 2), 1)); | |
418 | ||
419 | /* Then, store the elements of VEC in NEW_VEC in the correct | |
420 | order. */ | |
421 | idx = 0; | |
422 | for (list = Vcharset_ordered_list; CONSP (list); list = XCDR (list)) | |
06f76f0d | 423 | { |
1d5d7200 KH |
424 | for (i = 0; i < size; i++) |
425 | if (charset_id_table[i] == XINT (XCAR (list))) | |
426 | new_vec[idx++] = AREF (vec, i); | |
427 | if (idx == size) | |
428 | break; | |
06f76f0d | 429 | } |
0d407d77 | 430 | |
1d5d7200 KH |
431 | /* At last, update VEC. */ |
432 | for (i = 0; i < size; i++) | |
433 | ASET (vec, i, new_vec[i]); | |
434 | } | |
435 | ||
436 | ||
437 | /* Load a font matching the font related attributes in FACE->lface and | |
438 | font pattern in FONT_DEF of FONTSET, and return an index of the | |
439 | font. FONT_DEF has this form: | |
440 | [ FONT-SPEC ENCODING REPERTORY ] | |
441 | If REPERTORY is nil, generate a char-table representing the font | |
442 | repertory by looking into the font itself. */ | |
443 | ||
444 | static int | |
445 | load_font_get_repertory (f, face, font_def, fontset) | |
446 | FRAME_PTR f; | |
447 | struct face *face; | |
448 | Lisp_Object font_def; | |
449 | Lisp_Object fontset; | |
450 | { | |
451 | char *font_name; | |
452 | struct font_info *font_info; | |
453 | ||
454 | font_name = choose_face_font (f, face->lface, AREF (font_def, 0)); | |
455 | if (! (font_info = fs_load_font (f, font_name, XINT (AREF (font_def, 1))))) | |
456 | return -1; | |
457 | ||
458 | if (NILP (AREF (font_def, 2)) | |
459 | && NILP (Fassq (make_number (font_info->font_idx), | |
460 | FONTSET_REPERTORY (fontset)))) | |
461 | { | |
462 | /* We must look into the font to get the correct repertory as a | |
463 | char-table. */ | |
464 | Lisp_Object repertory; | |
465 | ||
466 | repertory = (*get_font_repertory_func) (f, font_info); | |
467 | FONTSET_REPERTORY (fontset) | |
468 | = Fcons (Fcons (make_number (font_info->font_idx), repertory), | |
469 | FONTSET_REPERTORY (fontset)); | |
06f76f0d | 470 | } |
1d5d7200 KH |
471 | |
472 | return font_info->font_idx; | |
0d407d77 KH |
473 | } |
474 | ||
475 | ||
1d5d7200 KH |
476 | /* Return a face ID registerd in the realized fontset FONTSET for the |
477 | character C. If FACE is NULL, return -1 if a face is not yet | |
478 | set. Otherwise, realize a proper face from FACE and return it. */ | |
0d407d77 | 479 | |
1d5d7200 KH |
480 | static int |
481 | fontset_face (fontset, c, face) | |
0d407d77 KH |
482 | Lisp_Object fontset; |
483 | int c; | |
1d5d7200 | 484 | struct face *face; |
0d407d77 | 485 | { |
1d5d7200 KH |
486 | Lisp_Object elt, vec; |
487 | int i, from, to; | |
488 | int font_idx; | |
489 | FRAME_PTR f = XFRAME (FONTSET_FRAME (fontset)); | |
0d407d77 | 490 | |
1d5d7200 | 491 | elt = CHAR_TABLE_REF (fontset, c); |
0d407d77 | 492 | |
1d5d7200 KH |
493 | if (EQ (elt, Qt)) |
494 | goto font_not_found; | |
06f76f0d | 495 | if (NILP (elt)) |
1d5d7200 KH |
496 | { |
497 | /* We have not yet decided a face for C. */ | |
498 | Lisp_Object base_fontset, range; | |
499 | ||
500 | if (! face) | |
501 | return -1; | |
502 | base_fontset = FONTSET_BASE (fontset); | |
503 | elt = FONTSET_REF_AND_RANGE (base_fontset, c, from, to); | |
504 | range = Fcons (make_number (from), make_number (to)); | |
505 | if (NILP (elt)) | |
506 | { | |
507 | /* Record that we have no font for characters of this | |
508 | range. */ | |
509 | FONTSET_SET (fontset, range, Qt); | |
510 | goto font_not_found; | |
511 | } | |
512 | elt = Fcopy_sequence (elt); | |
513 | /* Now ELT is a vector of FONT-DEFs. We at first change it to | |
514 | FONT-VECTOR, a vector of [ nil nil FONT-DEF ]. */ | |
515 | for (i = 0; i < ASIZE (elt); i++) | |
516 | { | |
517 | Lisp_Object tmp; | |
06f76f0d | 518 | |
1d5d7200 KH |
519 | tmp = Fmake_vector (make_number (3), Qnil); |
520 | ASET (tmp, 2, AREF (elt, i)); | |
521 | ASET (elt, i, tmp); | |
522 | } | |
523 | /* Then store (-1 . FONT-VECTOR) in the fontset. -1 is to force | |
524 | reordering of FONT-VECTOR. */ | |
525 | elt = Fcons (make_number (-1), elt); | |
526 | FONTSET_SET (fontset, range, elt); | |
527 | } | |
528 | ||
529 | if (XINT (XCAR (elt)) != charset_ordered_list_tick) | |
530 | /* The priority of charsets is changed after we selected a face | |
531 | for C last time. */ | |
532 | reorder_font_vector (elt); | |
533 | ||
534 | vec = XCDR (elt); | |
535 | /* Find the first available font in the font vector VEC. */ | |
536 | for (i = 0; i < ASIZE (vec); i++) | |
537 | { | |
538 | Lisp_Object font_def; | |
539 | ||
540 | elt = AREF (vec, i); | |
541 | /* ELT == [ FACE-ID FONT-INDEX [ FONT-SPEC ENCODING REPERTORY ] ] */ | |
542 | font_def = AREF (elt, 2); | |
543 | if (INTEGERP (AREF (elt, 1)) && XINT (AREF (elt, 1)) < 0) | |
544 | /* We couldn't open this font last time. */ | |
545 | continue; | |
546 | ||
547 | if (!face && (NILP (AREF (elt, 1)) || NILP (AREF (elt, 0)))) | |
548 | /* We have not yet opened the font, or we have not yet made a | |
549 | realized face for the font. */ | |
550 | return -1; | |
551 | ||
552 | if (INTEGERP (AREF (font_def, 2))) | |
553 | { | |
554 | /* The repertory is specified by charset ID. */ | |
555 | struct charset *charset | |
556 | = CHARSET_FROM_ID (XINT (AREF (font_def, 2))); | |
557 | ||
558 | if (! CHAR_CHARSET_P (c, charset)) | |
559 | /* This fond can't display C. */ | |
560 | continue; | |
561 | } | |
562 | else | |
563 | { | |
564 | Lisp_Object slot; | |
565 | ||
566 | if (! INTEGERP (AREF (elt, 1))) | |
567 | { | |
568 | /* We have not yet opened a font matching this spec. | |
569 | Open the best matching font now and register the | |
570 | repertory. */ | |
571 | font_idx = load_font_get_repertory (f, face, font_def, fontset); | |
572 | ASET (elt, 1, make_number (font_idx)); | |
573 | if (font_idx < 0) | |
574 | /* This means that we couldn't find a font matching | |
575 | FONT_DEF. */ | |
576 | continue; | |
577 | } | |
578 | ||
579 | slot = Fassq (AREF (elt, 1), FONTSET_REPERTORY (fontset)); | |
580 | if (! CONSP (slot)) | |
581 | abort (); | |
582 | if (NILP (CHAR_TABLE_REF (XCDR (slot), c))) | |
583 | /* This fond can't display C. */ | |
584 | continue; | |
585 | } | |
586 | ||
587 | /* Now we have decided to use this font spec to display C. */ | |
588 | if (INTEGERP (AREF (elt, 1))) | |
589 | font_idx = XINT (AREF (elt, 1)); | |
590 | else | |
591 | { | |
592 | /* But not yet opened the best matching font. */ | |
593 | font_idx = load_font_get_repertory (f, face, font_def, fontset); | |
594 | ASET (elt, 1, make_number (font_idx)); | |
595 | if (font_idx < 0) | |
596 | continue; | |
597 | } | |
598 | ||
599 | /* Now we have the opened font. */ | |
600 | if (NILP (AREF (elt, 0))) | |
601 | { | |
602 | /* But not yet made a realized face that uses this font. */ | |
603 | int face_id = lookup_non_ascii_face (f, font_idx, face); | |
604 | ||
605 | ASET (elt, 0, make_number (face_id)); | |
606 | } | |
607 | ||
608 | /* Ok, this face can display C. */ | |
609 | return XINT (AREF (elt, 0)); | |
610 | } | |
611 | ||
612 | font_not_found: | |
613 | /* We have tried all the fonts for C, but none of them can be opened | |
614 | nor can display C. */ | |
615 | if (NILP (FONTSET_NOFONT_FACE (fontset))) | |
616 | { | |
617 | int face_id; | |
618 | ||
619 | if (! face) | |
620 | return -1; | |
621 | face_id = lookup_non_ascii_face (f, -1, face); | |
622 | FONTSET_NOFONT_FACE (fontset) = make_number (face_id); | |
623 | } | |
624 | return XINT (FONTSET_NOFONT_FACE (fontset)); | |
0d407d77 KH |
625 | } |
626 | ||
627 | ||
628 | /* Return a newly created fontset with NAME. If BASE is nil, make a | |
06f76f0d | 629 | base fontset. Otherwise make a realized fontset whose base is |
0d407d77 KH |
630 | BASE. */ |
631 | ||
632 | static Lisp_Object | |
633 | make_fontset (frame, name, base) | |
634 | Lisp_Object frame, name, base; | |
4ed46869 | 635 | { |
1337ac77 | 636 | Lisp_Object fontset; |
0d407d77 KH |
637 | int size = ASIZE (Vfontset_table); |
638 | int id = next_fontset_id; | |
0d407d77 KH |
639 | |
640 | /* Find a free slot in Vfontset_table. Usually, next_fontset_id is | |
641 | the next available fontset ID. So it is expected that this loop | |
642 | terminates quickly. In addition, as the last element of | |
fc8865fc | 643 | Vfontset_table is always nil, we don't have to check the range of |
0d407d77 KH |
644 | id. */ |
645 | while (!NILP (AREF (Vfontset_table, id))) id++; | |
646 | ||
647 | if (id + 1 == size) | |
648 | { | |
1d5d7200 | 649 | /* We must grow Vfontset_table. */ |
0d407d77 | 650 | Lisp_Object tem; |
fc8865fc | 651 | int i; |
4ed46869 | 652 | |
06f76f0d | 653 | tem = Fmake_vector (make_number (size + 32), Qnil); |
0d407d77 KH |
654 | for (i = 0; i < size; i++) |
655 | AREF (tem, i) = AREF (Vfontset_table, i); | |
656 | Vfontset_table = tem; | |
657 | } | |
4ed46869 | 658 | |
11d9bd93 | 659 | fontset = Fmake_char_table (Qfontset, Qnil); |
0d407d77 KH |
660 | |
661 | FONTSET_ID (fontset) = make_number (id); | |
06f76f0d KH |
662 | if (NILP (base)) |
663 | { | |
664 | FONTSET_NAME (fontset) = name; | |
665 | } | |
666 | else | |
667 | { | |
668 | FONTSET_NAME (fontset) = Qnil; | |
669 | FONTSET_FRAME (fontset) = frame; | |
670 | FONTSET_BASE (fontset) = base; | |
671 | } | |
0d407d77 | 672 | |
06f76f0d | 673 | ASET (Vfontset_table, id, fontset); |
0d407d77 KH |
674 | next_fontset_id = id + 1; |
675 | return fontset; | |
4ed46869 KH |
676 | } |
677 | ||
0d407d77 | 678 | |
0d407d77 | 679 | \f |
1d5d7200 | 680 | /********** INTERFACES TO xfaces.c, xfns.c, and dispextern.h **********/ |
0d407d77 | 681 | |
1d5d7200 | 682 | /* Return the name of the fontset who has ID. */ |
0d407d77 KH |
683 | |
684 | Lisp_Object | |
685 | fontset_name (id) | |
686 | int id; | |
687 | { | |
688 | Lisp_Object fontset; | |
06f76f0d | 689 | |
0d407d77 KH |
690 | fontset = FONTSET_FROM_ID (id); |
691 | return FONTSET_NAME (fontset); | |
692 | } | |
693 | ||
694 | ||
1d5d7200 | 695 | /* Return the ASCII font name of the fontset who has ID. */ |
0d407d77 KH |
696 | |
697 | Lisp_Object | |
698 | fontset_ascii (id) | |
699 | int id; | |
700 | { | |
1d5d7200 | 701 | Lisp_Object fontset, elt; |
06f76f0d | 702 | |
0d407d77 | 703 | fontset= FONTSET_FROM_ID (id); |
1d5d7200 KH |
704 | elt = FONTSET_ASCII (fontset); |
705 | /* It is assured that ELT is always a string (i.e. fontname | |
706 | pattern). */ | |
707 | return elt; | |
0d407d77 KH |
708 | } |
709 | ||
710 | ||
06f76f0d KH |
711 | /* Free fontset of FACE defined on frame F. Called from |
712 | free_realized_face. */ | |
0d407d77 | 713 | |
4ed46869 | 714 | void |
0d407d77 KH |
715 | free_face_fontset (f, face) |
716 | FRAME_PTR f; | |
717 | struct face *face; | |
4ed46869 | 718 | { |
1d5d7200 | 719 | ASET (Vfontset_table, face->fontset, Qnil); |
06f76f0d KH |
720 | if (face->fontset < next_fontset_id) |
721 | next_fontset_id = face->fontset; | |
0d407d77 | 722 | } |
18998710 | 723 | |
0d407d77 KH |
724 | |
725 | /* Return 1 iff FACE is suitable for displaying character C. | |
726 | Otherwise return 0. Called from the macro FACE_SUITABLE_FOR_CHAR_P | |
06f76f0d | 727 | when C is not an ASCII character. */ |
0d407d77 KH |
728 | |
729 | int | |
730 | face_suitable_for_char_p (face, c) | |
731 | struct face *face; | |
732 | int c; | |
733 | { | |
06f76f0d | 734 | Lisp_Object fontset; |
0d407d77 | 735 | |
0d407d77 | 736 | fontset = FONTSET_FROM_ID (face->fontset); |
1d5d7200 | 737 | return (face->id == fontset_face (fontset, c, NULL)); |
0d407d77 KH |
738 | } |
739 | ||
740 | ||
741 | /* Return ID of face suitable for displaying character C on frame F. | |
1d5d7200 KH |
742 | FACE must be reazlied for ASCII characters in advance. Called from |
743 | the macro FACE_FOR_CHAR. */ | |
0d407d77 KH |
744 | |
745 | int | |
746 | face_for_char (f, face, c) | |
747 | FRAME_PTR f; | |
748 | struct face *face; | |
749 | int c; | |
750 | { | |
a980c932 | 751 | Lisp_Object fontset; |
1d5d7200 KH |
752 | |
753 | if (ASCII_CHAR_P (c)) | |
754 | return face->ascii_face->id; | |
0d407d77 KH |
755 | |
756 | xassert (fontset_id_valid_p (face->fontset)); | |
757 | fontset = FONTSET_FROM_ID (face->fontset); | |
758 | xassert (!BASE_FONTSET_P (fontset)); | |
1d5d7200 | 759 | return fontset_face (fontset, c, face); |
0d407d77 KH |
760 | } |
761 | ||
762 | ||
763 | /* Make a realized fontset for ASCII face FACE on frame F from the | |
764 | base fontset BASE_FONTSET_ID. If BASE_FONTSET_ID is -1, use the | |
765 | default fontset as the base. Value is the id of the new fontset. | |
766 | Called from realize_x_face. */ | |
767 | ||
768 | int | |
1d5d7200 | 769 | make_fontset_for_ascii_face (f, base_fontset_id, face) |
0d407d77 KH |
770 | FRAME_PTR f; |
771 | int base_fontset_id; | |
1d5d7200 | 772 | struct face *face; |
0d407d77 | 773 | { |
1337ac77 | 774 | Lisp_Object base_fontset, fontset, frame; |
0d407d77 KH |
775 | |
776 | XSETFRAME (frame, f); | |
777 | if (base_fontset_id >= 0) | |
778 | { | |
779 | base_fontset = FONTSET_FROM_ID (base_fontset_id); | |
780 | if (!BASE_FONTSET_P (base_fontset)) | |
781 | base_fontset = FONTSET_BASE (base_fontset); | |
782 | xassert (BASE_FONTSET_P (base_fontset)); | |
1d5d7200 KH |
783 | if (! BASE_FONTSET_P (base_fontset)) |
784 | abort (); | |
4ed46869 | 785 | } |
0d407d77 KH |
786 | else |
787 | base_fontset = Vdefault_fontset; | |
788 | ||
789 | fontset = make_fontset (frame, Qnil, base_fontset); | |
1d5d7200 KH |
790 | { |
791 | Lisp_Object elt; | |
792 | ||
793 | elt = FONTSET_REF (base_fontset, 0); | |
794 | elt = Fmake_vector (make_number (3), AREF (elt, 0)); | |
795 | ASET (elt, 0, make_number (face->id)); | |
796 | ASET (elt, 1, make_number (face->font_info_id)); | |
797 | elt = Fcons (make_number (charset_ordered_list_tick), | |
798 | Fmake_vector (make_number (1), elt)); | |
799 | char_table_set_range (fontset, 0, 127, elt); | |
800 | } | |
f3231837 | 801 | return XINT (FONTSET_ID (fontset)); |
0d407d77 KH |
802 | } |
803 | ||
804 | ||
97f4db8c AI |
805 | #if defined(WINDOWSNT) && defined (_MSC_VER) |
806 | #pragma optimize("", off) | |
807 | #endif | |
808 | ||
06f76f0d KH |
809 | /* Load a font named FONTNAME on frame F. Return a pointer to the |
810 | struct font_info of the loaded font. If loading fails, return | |
6ab1fb6a KH |
811 | NULL. CHARSET is an ID of charset to encode characters for this |
812 | font. If it is -1, find one from Vfont_encoding_alist. */ | |
4ed46869 KH |
813 | |
814 | struct font_info * | |
6ab1fb6a | 815 | fs_load_font (f, fontname, charset) |
4ed46869 | 816 | FRAME_PTR f; |
4ed46869 | 817 | char *fontname; |
6ab1fb6a | 818 | int charset; |
4ed46869 | 819 | { |
4ed46869 | 820 | struct font_info *fontp; |
4ed46869 | 821 | |
0d407d77 KH |
822 | if (!fontname) |
823 | /* No way to get fontname. */ | |
1d5d7200 | 824 | return NULL; |
4ed46869 | 825 | |
06f76f0d | 826 | fontp = (*load_font_func) (f, fontname, 0); |
6ab1fb6a KH |
827 | if (! fontp || fontp->charset >= 0) |
828 | return fontp; | |
4ed46869 | 829 | |
48728c92 | 830 | fontname = fontp->full_name; |
810abb87 | 831 | |
6ab1fb6a KH |
832 | if (charset < 0) |
833 | { | |
834 | Lisp_Object charset_symbol; | |
835 | ||
836 | charset_symbol = find_font_encoding (fontname); | |
837 | if (CONSP (charset_symbol)) | |
838 | charset_symbol = XCAR (charset_symbol); | |
839 | charset = XINT (CHARSET_SYMBOL_ID (charset_symbol)); | |
840 | } | |
841 | fontp->charset = charset; | |
1d5d7200 | 842 | fontp->vertical_centering = 0; |
06f76f0d | 843 | fontp->font_encoder = NULL; |
727fb790 | 844 | |
6ab1fb6a | 845 | if (charset != charset_ascii) |
1d5d7200 KH |
846 | { |
847 | fontp->vertical_centering | |
848 | = (STRINGP (Vvertical_centering_font_regexp) | |
849 | && (fast_c_string_match_ignore_case | |
850 | (Vvertical_centering_font_regexp, fontname) >= 0)); | |
851 | ||
852 | if (find_ccl_program_func) | |
853 | (*find_ccl_program_func) (fontp); | |
854 | } | |
4ed46869 | 855 | |
4ed46869 KH |
856 | return fontp; |
857 | } | |
858 | ||
97f4db8c AI |
859 | #if defined(WINDOWSNT) && defined (_MSC_VER) |
860 | #pragma optimize("", on) | |
861 | #endif | |
862 | ||
0d407d77 | 863 | \f |
6ab1fb6a KH |
864 | /* Return ENCODING or a cons of ENCODING and REPERTORY of the font |
865 | FONTNAME. ENCODING is a charset symbol that specifies the encoding | |
866 | of the font. REPERTORY is a charset symbol or nil. */ | |
1d5d7200 KH |
867 | |
868 | ||
869 | static Lisp_Object | |
870 | find_font_encoding (fontname) | |
871 | char *fontname; | |
872 | { | |
873 | Lisp_Object tail, elt; | |
874 | ||
875 | for (tail = Vfont_encoding_alist; CONSP (tail); tail = XCDR (tail)) | |
876 | { | |
877 | elt = XCAR (tail); | |
878 | if (CONSP (elt) | |
879 | && STRINGP (XCAR (elt)) | |
880 | && fast_c_string_match_ignore_case (XCAR (elt), fontname) >= 0 | |
881 | && (SYMBOLP (XCDR (elt)) | |
882 | ? CHARSETP (XCDR (elt)) | |
883 | : CONSP (XCDR (elt)) && CHARSETP (XCAR (XCDR (elt))))) | |
884 | return (XCDR (elt)); | |
885 | } | |
886 | /* We don't know the encoding of this font. Let's assume Unicode | |
887 | encoding. */ | |
888 | return Qunicode; | |
889 | } | |
890 | ||
891 | ||
4ed46869 KH |
892 | /* Cache data used by fontset_pattern_regexp. The car part is a |
893 | pattern string containing at least one wild card, the cdr part is | |
894 | the corresponding regular expression. */ | |
895 | static Lisp_Object Vcached_fontset_data; | |
896 | ||
7539e11f KR |
897 | #define CACHED_FONTSET_NAME (XSTRING (XCAR (Vcached_fontset_data))->data) |
898 | #define CACHED_FONTSET_REGEX (XCDR (Vcached_fontset_data)) | |
4ed46869 KH |
899 | |
900 | /* If fontset name PATTERN contains any wild card, return regular | |
901 | expression corresponding to PATTERN. */ | |
902 | ||
0d407d77 | 903 | static Lisp_Object |
4ed46869 KH |
904 | fontset_pattern_regexp (pattern) |
905 | Lisp_Object pattern; | |
906 | { | |
4ed46869 KH |
907 | if (!index (XSTRING (pattern)->data, '*') |
908 | && !index (XSTRING (pattern)->data, '?')) | |
909 | /* PATTERN does not contain any wild cards. */ | |
1c283e35 | 910 | return Qnil; |
4ed46869 KH |
911 | |
912 | if (!CONSP (Vcached_fontset_data) | |
913 | || strcmp (XSTRING (pattern)->data, CACHED_FONTSET_NAME)) | |
914 | { | |
915 | /* We must at first update the cached data. */ | |
5604ec34 | 916 | char *regex = (char *) alloca (XSTRING (pattern)->size * 2 + 3); |
4ed46869 KH |
917 | char *p0, *p1 = regex; |
918 | ||
1c283e35 KH |
919 | /* Convert "*" to ".*", "?" to ".". */ |
920 | *p1++ = '^'; | |
ea5239ec | 921 | for (p0 = (char *) XSTRING (pattern)->data; *p0; p0++) |
4ed46869 | 922 | { |
1c283e35 | 923 | if (*p0 == '*') |
4ed46869 | 924 | { |
1c283e35 KH |
925 | *p1++ = '.'; |
926 | *p1++ = '*'; | |
4ed46869 | 927 | } |
1c283e35 | 928 | else if (*p0 == '?') |
d96d677d | 929 | *p1++ = '.'; |
1c283e35 KH |
930 | else |
931 | *p1++ = *p0; | |
4ed46869 KH |
932 | } |
933 | *p1++ = '$'; | |
934 | *p1++ = 0; | |
935 | ||
936 | Vcached_fontset_data = Fcons (build_string (XSTRING (pattern)->data), | |
937 | build_string (regex)); | |
938 | } | |
939 | ||
940 | return CACHED_FONTSET_REGEX; | |
941 | } | |
942 | ||
0d407d77 KH |
943 | /* Return ID of the base fontset named NAME. If there's no such |
944 | fontset, return -1. */ | |
945 | ||
946 | int | |
947 | fs_query_fontset (name, regexpp) | |
948 | Lisp_Object name; | |
949 | int regexpp; | |
950 | { | |
1337ac77 | 951 | Lisp_Object tem; |
0d407d77 KH |
952 | int i; |
953 | ||
954 | name = Fdowncase (name); | |
955 | if (!regexpp) | |
956 | { | |
957 | tem = Frassoc (name, Vfontset_alias_alist); | |
958 | if (CONSP (tem) && STRINGP (XCAR (tem))) | |
959 | name = XCAR (tem); | |
960 | else | |
961 | { | |
962 | tem = fontset_pattern_regexp (name); | |
963 | if (STRINGP (tem)) | |
964 | { | |
965 | name = tem; | |
966 | regexpp = 1; | |
967 | } | |
968 | } | |
969 | } | |
970 | ||
971 | for (i = 0; i < ASIZE (Vfontset_table); i++) | |
972 | { | |
973 | Lisp_Object fontset; | |
974 | unsigned char *this_name; | |
975 | ||
976 | fontset = FONTSET_FROM_ID (i); | |
977 | if (NILP (fontset) | |
978 | || !BASE_FONTSET_P (fontset)) | |
979 | continue; | |
980 | ||
981 | this_name = XSTRING (FONTSET_NAME (fontset))->data; | |
982 | if (regexpp | |
983 | ? fast_c_string_match_ignore_case (name, this_name) >= 0 | |
984 | : !strcmp (XSTRING (name)->data, this_name)) | |
985 | return i; | |
986 | } | |
987 | return -1; | |
988 | } | |
989 | ||
990 | ||
727fb790 | 991 | DEFUN ("query-fontset", Fquery_fontset, Squery_fontset, 1, 2, 0, |
335c5470 PJ |
992 | doc: /* Return the name of a fontset that matches PATTERN. |
993 | The value is nil if there is no matching fontset. | |
994 | PATTERN can contain `*' or `?' as a wildcard | |
995 | just as X font name matching algorithm allows. | |
996 | If REGEXPP is non-nil, PATTERN is a regular expression. */) | |
997 | (pattern, regexpp) | |
727fb790 | 998 | Lisp_Object pattern, regexpp; |
4ed46869 | 999 | { |
0d407d77 KH |
1000 | Lisp_Object fontset; |
1001 | int id; | |
4ed46869 KH |
1002 | |
1003 | (*check_window_system_func) (); | |
1004 | ||
b7826503 | 1005 | CHECK_STRING (pattern); |
4ed46869 KH |
1006 | |
1007 | if (XSTRING (pattern)->size == 0) | |
1008 | return Qnil; | |
1009 | ||
0d407d77 KH |
1010 | id = fs_query_fontset (pattern, !NILP (regexpp)); |
1011 | if (id < 0) | |
1012 | return Qnil; | |
4ed46869 | 1013 | |
0d407d77 KH |
1014 | fontset = FONTSET_FROM_ID (id); |
1015 | return FONTSET_NAME (fontset); | |
4ed46869 KH |
1016 | } |
1017 | ||
06f76f0d | 1018 | /* Return a list of base fontset names matching PATTERN on frame F. */ |
4ed46869 KH |
1019 | |
1020 | Lisp_Object | |
1021 | list_fontsets (f, pattern, size) | |
1022 | FRAME_PTR f; | |
1023 | Lisp_Object pattern; | |
1024 | int size; | |
1025 | { | |
1337ac77 | 1026 | Lisp_Object frame, regexp, val; |
0d407d77 | 1027 | int id; |
4ed46869 | 1028 | |
0d407d77 | 1029 | XSETFRAME (frame, f); |
4ed46869 | 1030 | |
0d407d77 | 1031 | regexp = fontset_pattern_regexp (pattern); |
4ed46869 | 1032 | val = Qnil; |
4ed46869 | 1033 | |
0d407d77 KH |
1034 | for (id = 0; id < ASIZE (Vfontset_table); id++) |
1035 | { | |
1036 | Lisp_Object fontset; | |
1037 | unsigned char *name; | |
1038 | ||
1039 | fontset = FONTSET_FROM_ID (id); | |
1040 | if (NILP (fontset) | |
1041 | || !BASE_FONTSET_P (fontset) | |
1042 | || !EQ (frame, FONTSET_FRAME (fontset))) | |
1043 | continue; | |
1044 | name = XSTRING (FONTSET_NAME (fontset))->data; | |
1045 | ||
1d5d7200 | 1046 | if (STRINGP (regexp) |
0d407d77 KH |
1047 | ? (fast_c_string_match_ignore_case (regexp, name) < 0) |
1048 | : strcmp (XSTRING (pattern)->data, name)) | |
1049 | continue; | |
1050 | ||
0d407d77 | 1051 | val = Fcons (Fcopy_sequence (FONTSET_NAME (fontset)), val); |
4ed46869 KH |
1052 | } |
1053 | ||
1054 | return val; | |
1055 | } | |
1056 | ||
4ed46869 | 1057 | |
06f76f0d | 1058 | /* Free all realized fontsets whose base fontset is BASE. */ |
4ed46869 | 1059 | |
06f76f0d KH |
1060 | static void |
1061 | free_realized_fontsets (base) | |
1062 | Lisp_Object base; | |
1063 | { | |
a980c932 | 1064 | #if 0 |
06f76f0d | 1065 | int id; |
4ed46869 | 1066 | |
27e20b2f KH |
1067 | /* For the moment, this doesn't work because free_realized_face |
1068 | doesn't remove FACE from a cache. Until we find a solution, we | |
1069 | suppress this code, and simply use Fclear_face_cache even though | |
1070 | that is not efficient. */ | |
06f76f0d KH |
1071 | BLOCK_INPUT; |
1072 | for (id = 0; id < ASIZE (Vfontset_table); id++) | |
4ed46869 | 1073 | { |
06f76f0d | 1074 | Lisp_Object this = AREF (Vfontset_table, id); |
4ed46869 | 1075 | |
06f76f0d | 1076 | if (EQ (FONTSET_BASE (this), base)) |
0d407d77 | 1077 | { |
06f76f0d | 1078 | Lisp_Object tail; |
4ed46869 | 1079 | |
06f76f0d KH |
1080 | for (tail = FONTSET_FACE_ALIST (this); CONSP (tail); |
1081 | tail = XCDR (tail)) | |
1082 | { | |
1083 | FRAME_PTR f = XFRAME (FONTSET_FRAME (this)); | |
1084 | int face_id = XINT (XCDR (XCAR (tail))); | |
1085 | struct face *face = FACE_FROM_ID (f, face_id); | |
1086 | ||
1087 | /* Face THIS itself is also freed by the following call. */ | |
1088 | free_realized_face (f, face); | |
1089 | } | |
1090 | } | |
0d407d77 | 1091 | } |
06f76f0d | 1092 | UNBLOCK_INPUT; |
27e20b2f KH |
1093 | #else /* not 0 */ |
1094 | Fclear_face_cache (Qt); | |
1095 | #endif /* not 0 */ | |
0d407d77 | 1096 | } |
4ed46869 | 1097 | |
4ed46869 | 1098 | |
0d407d77 KH |
1099 | /* Check validity of NAME as a fontset name and return the |
1100 | corresponding fontset. If not valid, signal an error. | |
1101 | If NAME is t, return Vdefault_fontset. */ | |
1102 | ||
1103 | static Lisp_Object | |
1104 | check_fontset_name (name) | |
1105 | Lisp_Object name; | |
1106 | { | |
1107 | int id; | |
1108 | ||
1109 | if (EQ (name, Qt)) | |
1110 | return Vdefault_fontset; | |
4ed46869 | 1111 | |
b7826503 | 1112 | CHECK_STRING (name); |
0d407d77 KH |
1113 | id = fs_query_fontset (name, 0); |
1114 | if (id < 0) | |
9af3dc47 | 1115 | error ("Fontset `%s' does not exist", XSTRING (name)->data); |
0d407d77 KH |
1116 | return FONTSET_FROM_ID (id); |
1117 | } | |
4ed46869 | 1118 | |
1d5d7200 KH |
1119 | static void |
1120 | accumulate_script_ranges (arg, range, val) | |
1121 | Lisp_Object arg, range, val; | |
1122 | { | |
1123 | if (EQ (XCAR (arg), val)) | |
1124 | { | |
1125 | if (CONSP (range)) | |
1126 | XSETCDR (arg, Fcons (Fcons (XCAR (range), XCDR (range)), XCDR (arg))); | |
1127 | else | |
1128 | XSETCDR (arg, Fcons (Fcons (range, range), XCDR (arg))); | |
1129 | } | |
1130 | } | |
1131 | ||
1132 | ||
1133 | DEFUN ("set-fontset-font", Fset_fontset_font, Sset_fontset_font, 3, 5, 0, | |
1134 | doc: /* | |
1135 | Modify fontset NAME to use FONT-SPEC for CHARACTER. | |
1136 | ||
1137 | CHARACTER may be a cons; (FROM . TO), where FROM and TO are | |
1138 | characters. In that case, use FONT-SPEC for all characters in the | |
1139 | range FROM and TO (inclusive). | |
06f76f0d | 1140 | |
1d5d7200 KH |
1141 | CHARACTER may be a script name symbol. In that case, use FONT-SPEC |
1142 | for all characters that belong to the script. | |
06f76f0d | 1143 | |
00c4da0f | 1144 | CHARACTER may be a charset which has a :code-offset attribute and the |
1d5d7200 KH |
1145 | attribute value is greater than the maximum Unicode character |
1146 | \(#x10FFFF). In that case, use FONT-SPEC for all characters in the | |
1147 | charset. | |
1148 | ||
00c4da0f DL |
1149 | FONT-SPEC may be: |
1150 | * A vector [ FAMILY WEIGHT SLANT WIDTH ADSTYLE REGISTRY ]. | |
1151 | See the documentation of `set-face-attribute' for the detail of | |
1152 | these vector elements; | |
3dcd48dd | 1153 | * A cons (FAMILY . REGISTRY), where FAMILY is a font family name and |
00c4da0f DL |
1154 | REGISTRY is a font registry name; |
1155 | * A font name string. | |
1d5d7200 KH |
1156 | |
1157 | Optional 4th argument FRAME, if non-nil, is a frame. This argument is | |
1158 | kept for backward compatibility and has no meaning. | |
1159 | ||
1160 | Optional 5th argument ADD, if non-nil, specifies how to add FONT-SPEC | |
1161 | to the font specifications for RANGE previously set. If it is | |
1162 | `prepend', FONT-SPEC is prepended. If it is `append', FONT-SPEC is | |
1163 | appended. By default, FONT-SPEC overrides the previous settings. */) | |
1164 | (name, character, font_spec, frame, add) | |
1165 | Lisp_Object name, character, font_spec, frame, add; | |
0d407d77 | 1166 | { |
06f76f0d | 1167 | Lisp_Object fontset; |
1d5d7200 | 1168 | Lisp_Object font_def, registry; |
00c4da0f | 1169 | Lisp_Object encoding, repertory; |
1d5d7200 | 1170 | Lisp_Object range_list; |
0d407d77 KH |
1171 | |
1172 | fontset = check_fontset_name (name); | |
1173 | ||
1d5d7200 KH |
1174 | /* The arg FRAME is kept for backward compatibility. We only check |
1175 | the validity. */ | |
1176 | if (!NILP (frame)) | |
1177 | CHECK_LIVE_FRAME (frame); | |
1178 | ||
06f76f0d | 1179 | if (VECTORP (font_spec)) |
0890801b | 1180 | { |
1d5d7200 KH |
1181 | int j; |
1182 | ||
1183 | if (ASIZE (font_spec) != 6) | |
1184 | args_out_of_range (make_number (6), | |
1185 | make_number (ASIZE (font_spec))); | |
06f76f0d KH |
1186 | |
1187 | font_spec = Fcopy_sequence (font_spec); | |
1d5d7200 KH |
1188 | for (j = 0; j < 5; j++) |
1189 | if (! NILP (AREF (font_spec, j))) | |
1190 | { | |
1191 | CHECK_STRING (AREF (font_spec, j)); | |
1192 | ASET (font_spec, j, Fdowncase (AREF (font_spec, j))); | |
1193 | } | |
1194 | /* REGISTRY should not be omitted. */ | |
1195 | CHECK_STRING (AREF (font_spec, 5)); | |
1196 | registry = Fdowncase (AREF (font_spec, 5)); | |
1197 | ASET (font_spec, 5, registry); | |
1198 | ||
0d407d77 | 1199 | } |
06f76f0d | 1200 | else if (CONSP (font_spec)) |
0d407d77 | 1201 | { |
1d5d7200 KH |
1202 | Lisp_Object family; |
1203 | ||
06f76f0d KH |
1204 | family = XCAR (font_spec); |
1205 | registry = XCDR (font_spec); | |
1d5d7200 KH |
1206 | |
1207 | if (! NILP (family)) | |
06f76f0d KH |
1208 | { |
1209 | CHECK_STRING (family); | |
1d5d7200 | 1210 | family = Fdowncase (family); |
06f76f0d KH |
1211 | } |
1212 | CHECK_STRING (registry); | |
1d5d7200 KH |
1213 | registry = Fdowncase (registry); |
1214 | font_spec = Fmake_vector (make_number (6), Qnil); | |
1215 | ASET (font_spec, 0, family); | |
1216 | ASET (font_spec, 5, registry); | |
0d407d77 | 1217 | } |
1d5d7200 | 1218 | else |
0d407d77 | 1219 | { |
1d5d7200 KH |
1220 | CHECK_STRING (font_spec); |
1221 | font_spec = Fdowncase (font_spec); | |
1222 | registry = font_name_registry (font_spec); | |
1223 | if (NILP (registry)) | |
1224 | error ("No XLFD: %s", XSTRING (font_spec)->data); | |
4ed46869 | 1225 | } |
1d5d7200 KH |
1226 | |
1227 | if (STRINGP (font_spec)) | |
1228 | encoding = find_font_encoding ((char *) XSTRING (font_spec)->data); | |
0d407d77 | 1229 | else |
1d5d7200 KH |
1230 | encoding = find_font_encoding ((char *) XSTRING (registry)->data); |
1231 | if (SYMBOLP (encoding)) | |
1232 | encoding = repertory = CHARSET_SYMBOL_ID (encoding); | |
1233 | else | |
1234 | { | |
1235 | repertory = XCDR (encoding); | |
1236 | encoding = CHARSET_SYMBOL_ID (XCAR (encoding)); | |
1237 | } | |
1238 | font_def = Fmake_vector (make_number (3), font_spec); | |
1239 | ASET (font_def, 1, encoding); | |
1240 | ASET (font_def, 2, repertory); | |
1241 | ||
1242 | if (CHARACTERP (character)) | |
1243 | range_list = Fcons (Fcons (character, character), Qnil); | |
1244 | else if (CONSP (character)) | |
8a9be3ac | 1245 | { |
06f76f0d KH |
1246 | Lisp_Object from, to; |
1247 | ||
1d5d7200 KH |
1248 | from = Fcar (character); |
1249 | to = Fcdr (character); | |
06f76f0d KH |
1250 | CHECK_CHARACTER (from); |
1251 | CHECK_CHARACTER (to); | |
1d5d7200 | 1252 | range_list = Fcons (character, Qnil); |
8a9be3ac | 1253 | } |
1d5d7200 KH |
1254 | else |
1255 | { | |
1256 | Lisp_Object script_list; | |
1257 | Lisp_Object val; | |
0d407d77 | 1258 | |
1d5d7200 KH |
1259 | CHECK_SYMBOL (character); |
1260 | range_list = Qnil; | |
1261 | script_list = XCHAR_TABLE (Vchar_script_table)->extras[0]; | |
1262 | if (! NILP (Fmemq (character, script_list))) | |
1263 | { | |
1264 | val = Fcons (character, Qnil); | |
1265 | map_char_table (accumulate_script_ranges, Qnil, Vchar_script_table, | |
1266 | val, 0, NULL); | |
1267 | range_list = XCDR (val); | |
1d5d7200 KH |
1268 | } |
1269 | else if (CHARSETP (character)) | |
1270 | { | |
1271 | struct charset *charset; | |
1272 | ||
1273 | CHECK_CHARSET_GET_CHARSET (character, charset); | |
1274 | if (CHARSET_METHOD (charset) == CHARSET_METHOD_OFFSET) | |
1275 | range_list | |
1276 | = Fcons (Fcons (make_number (CHARSET_MIN_CHAR (charset)), | |
1277 | make_number (CHARSET_MAX_CHAR (charset))), | |
1278 | range_list); | |
862aa7f9 KH |
1279 | if (EQ (character, Qascii)) |
1280 | { | |
1281 | if (! STRINGP (font_spec)) | |
1282 | font_spec = generate_ascii_font_name (FONTSET_NAME (fontset), | |
1283 | font_spec); | |
1284 | FONTSET_ASCII (fontset) = font_spec; | |
1285 | } | |
1d5d7200 | 1286 | } |
4ed46869 | 1287 | |
1d5d7200 KH |
1288 | if (NILP (range_list)) |
1289 | error ("Invalid script or charset name: %s", | |
1290 | XSYMBOL (character)->name->data); | |
1291 | } | |
1292 | ||
1293 | for (; CONSP (range_list); range_list = XCDR (range_list)) | |
1294 | FONTSET_ADD (fontset, XCAR (range_list), font_def, add); | |
4ed46869 | 1295 | |
06f76f0d KH |
1296 | /* Free all realized fontsets whose base is FONTSET. This way, the |
1297 | specified character(s) are surely redisplayed by a correct | |
1298 | font. */ | |
1299 | free_realized_fontsets (fontset); | |
4ed46869 KH |
1300 | |
1301 | return Qnil; | |
1302 | } | |
1303 | ||
06f76f0d KH |
1304 | |
1305 | DEFUN ("new-fontset", Fnew_fontset, Snew_fontset, 2, 2, 0, | |
1306 | doc: /* Create a new fontset NAME from font information in FONTLIST. | |
1307 | ||
1d5d7200 KH |
1308 | FONTLIST is an alist of scripts vs the corresponding font specification list. |
1309 | Each element of FONTLIST has the form (SCRIPT FONT-SPEC ...), where | |
1310 | a character of SCRIPT is displayed by a font that matches FONT-SPEC. | |
06f76f0d | 1311 | |
1d5d7200 | 1312 | SCRIPT is a symbol that appears in the variable `script-alist'. |
06f76f0d | 1313 | |
1d5d7200 KH |
1314 | FONT-SPEC is a vector, a cons, or a string. See the documentation of |
1315 | `set-fontset-font' for the meaning. */) | |
06f76f0d KH |
1316 | (name, fontlist) |
1317 | Lisp_Object name, fontlist; | |
1318 | { | |
1d5d7200 KH |
1319 | Lisp_Object fontset; |
1320 | Lisp_Object val; | |
1321 | int id; | |
06f76f0d KH |
1322 | |
1323 | CHECK_STRING (name); | |
1324 | CHECK_LIST (fontlist); | |
1325 | ||
1d5d7200 KH |
1326 | /* Check if an ASCII font is specified in FONTLIST. */ |
1327 | val = Fcar (Fcdr (Fassq (Qascii, fontlist))); | |
1328 | if (NILP (val)) | |
06f76f0d | 1329 | error ("No ascii font specified"); |
06f76f0d | 1330 | |
1d5d7200 KH |
1331 | id = fs_query_fontset (name, 0); |
1332 | if (id < 0) | |
1333 | fontset = make_fontset (Qnil, Fdowncase (name), Qnil); | |
1334 | else | |
1335 | { | |
1336 | fontset = FONTSET_FROM_ID (id);; | |
1337 | free_realized_fontsets (fontset); | |
1338 | Fset_char_table_range (fontset, Qt, Qnil); | |
1339 | } | |
06f76f0d | 1340 | |
1d5d7200 KH |
1341 | for (; ! NILP (fontlist); fontlist = Fcdr (fontlist)) |
1342 | { | |
1343 | Lisp_Object elt, script; | |
1344 | ||
1345 | elt = Fcar (fontlist); | |
1346 | script = Fcar (elt); | |
1347 | elt = Fcdr (elt); | |
1348 | Fset_fontset_font (name, script, Fcar (elt), Qnil, Qnil); | |
1349 | for (elt = Fcdr (elt); ! NILP (elt); elt = Fcdr (elt)) | |
1350 | Fset_fontset_font (name, script, XCAR (elt), Qnil, Qappend); | |
1351 | } | |
06f76f0d KH |
1352 | return name; |
1353 | } | |
1354 | ||
1355 | ||
4ed46869 | 1356 | DEFUN ("font-info", Ffont_info, Sfont_info, 1, 2, 0, |
335c5470 PJ |
1357 | doc: /* Return information about a font named NAME on frame FRAME. |
1358 | If FRAME is omitted or nil, use the selected frame. | |
1359 | The returned value is a vector of OPENED-NAME, FULL-NAME, CHARSET, SIZE, | |
1360 | HEIGHT, BASELINE-OFFSET, RELATIVE-COMPOSE, and DEFAULT-ASCENT, | |
1361 | where | |
1362 | OPENED-NAME is the name used for opening the font, | |
1363 | FULL-NAME is the full name of the font, | |
1364 | SIZE is the maximum bound width of the font, | |
1365 | HEIGHT is the height of the font, | |
1366 | BASELINE-OFFSET is the upward offset pixels from ASCII baseline, | |
1367 | RELATIVE-COMPOSE and DEFAULT-ASCENT are the numbers controlling | |
1368 | how to compose characters. | |
1369 | If the named font is not yet loaded, return nil. */) | |
1370 | (name, frame) | |
4ed46869 KH |
1371 | Lisp_Object name, frame; |
1372 | { | |
1373 | FRAME_PTR f; | |
1374 | struct font_info *fontp; | |
1375 | Lisp_Object info; | |
1376 | ||
1377 | (*check_window_system_func) (); | |
1378 | ||
b7826503 | 1379 | CHECK_STRING (name); |
0d407d77 | 1380 | name = Fdowncase (name); |
4ed46869 | 1381 | if (NILP (frame)) |
18f39d0e | 1382 | frame = selected_frame; |
b7826503 | 1383 | CHECK_LIVE_FRAME (frame); |
18f39d0e | 1384 | f = XFRAME (frame); |
4ed46869 KH |
1385 | |
1386 | if (!query_font_func) | |
1387 | error ("Font query function is not supported"); | |
1388 | ||
1389 | fontp = (*query_font_func) (f, XSTRING (name)->data); | |
1390 | if (!fontp) | |
1391 | return Qnil; | |
1392 | ||
0d407d77 | 1393 | info = Fmake_vector (make_number (7), Qnil); |
4ed46869 KH |
1394 | |
1395 | XVECTOR (info)->contents[0] = build_string (fontp->name); | |
1396 | XVECTOR (info)->contents[1] = build_string (fontp->full_name); | |
0d407d77 KH |
1397 | XVECTOR (info)->contents[2] = make_number (fontp->size); |
1398 | XVECTOR (info)->contents[3] = make_number (fontp->height); | |
1399 | XVECTOR (info)->contents[4] = make_number (fontp->baseline_offset); | |
1400 | XVECTOR (info)->contents[5] = make_number (fontp->relative_compose); | |
1401 | XVECTOR (info)->contents[6] = make_number (fontp->default_ascent); | |
4ed46869 KH |
1402 | |
1403 | return info; | |
1404 | } | |
1405 | ||
1ff005e1 KH |
1406 | |
1407 | /* Return the font name for the character at POSITION in the current | |
1408 | buffer. This is computed from all the text properties and overlays | |
1409 | that apply to POSITION. It returns nil in the following cases: | |
1410 | ||
1411 | (1) The window system doesn't have a font for the character (thus | |
1412 | it is displayed by an empty box). | |
1413 | ||
1414 | (2) The character code is invalid. | |
1415 | ||
1416 | (3) The current buffer is not displayed in any window. | |
1417 | ||
1418 | In addition, the returned font name may not take into account of | |
1419 | such redisplay engine hooks as what used in jit-lock-mode if | |
1420 | POSITION is currently not visible. */ | |
1421 | ||
1422 | ||
1423 | DEFUN ("internal-char-font", Finternal_char_font, Sinternal_char_font, 1, 1, 0, | |
335c5470 PJ |
1424 | doc: /* For internal use only. */) |
1425 | (position) | |
1ff005e1 KH |
1426 | Lisp_Object position; |
1427 | { | |
1428 | int pos, pos_byte, dummy; | |
1429 | int face_id; | |
1430 | int c; | |
1431 | Lisp_Object window; | |
1432 | struct window *w; | |
1433 | struct frame *f; | |
1434 | struct face *face; | |
1435 | ||
b7826503 | 1436 | CHECK_NUMBER_COERCE_MARKER (position); |
1ff005e1 KH |
1437 | pos = XINT (position); |
1438 | if (pos < BEGV || pos >= ZV) | |
1439 | args_out_of_range_3 (position, make_number (BEGV), make_number (ZV)); | |
1440 | pos_byte = CHAR_TO_BYTE (pos); | |
1441 | c = FETCH_CHAR (pos_byte); | |
851ab85e | 1442 | window = Fget_buffer_window (Fcurrent_buffer (), Qnil); |
1ff005e1 KH |
1443 | if (NILP (window)) |
1444 | return Qnil; | |
1445 | w = XWINDOW (window); | |
1446 | f = XFRAME (w->frame); | |
1447 | face_id = face_at_buffer_position (w, pos, -1, -1, &dummy, pos + 100, 0); | |
1448 | face_id = FACE_FOR_CHAR (f, FACE_FROM_ID (f, face_id), c); | |
1449 | face = FACE_FROM_ID (f, face_id); | |
1450 | return (face->font && face->font_name | |
1451 | ? build_string (face->font_name) | |
1452 | : Qnil); | |
1453 | } | |
1454 | ||
1455 | ||
1d5d7200 KH |
1456 | DEFUN ("fontset-info", Ffontset_info, Sfontset_info, 1, 2, 0, |
1457 | doc: /* Return information about a fontset FONTSET on frame FRAME. | |
1458 | The value is a char-table of which elements has this form. | |
1ff005e1 | 1459 | |
1d5d7200 | 1460 | ((FONT-PATTERN OPENED-FONT ...) ...) |
1ff005e1 | 1461 | |
1d5d7200 | 1462 | FONT-PATTERN is a vector: |
1ff005e1 | 1463 | |
1d5d7200 | 1464 | [ FAMILY WEIGHT SLANT SWIDTH ADSTYLE REGISTRY ] |
1ff005e1 | 1465 | |
1d5d7200 KH |
1466 | or a string of font name pattern. |
1467 | ||
1468 | OPENED-FONT is a name of a font actually opened. */) | |
1469 | (fontset, frame) | |
1470 | Lisp_Object fontset, frame; | |
4ed46869 KH |
1471 | { |
1472 | FRAME_PTR f; | |
1d5d7200 | 1473 | Lisp_Object table, val, elt; |
1ff005e1 KH |
1474 | Lisp_Object *realized; |
1475 | int n_realized = 0; | |
1d5d7200 | 1476 | int c, i, j; |
fc8865fc | 1477 | |
4ed46869 KH |
1478 | (*check_window_system_func) (); |
1479 | ||
1d5d7200 | 1480 | fontset = check_fontset_name (fontset); |
0d407d77 | 1481 | |
4ed46869 | 1482 | if (NILP (frame)) |
18f39d0e | 1483 | frame = selected_frame; |
b7826503 | 1484 | CHECK_LIVE_FRAME (frame); |
18f39d0e | 1485 | f = XFRAME (frame); |
4ed46869 | 1486 | |
1d5d7200 KH |
1487 | /* Recode fontsets realized on FRAME from the base fontset FONTSET |
1488 | in the table `realized'. */ | |
1ff005e1 KH |
1489 | realized = (Lisp_Object *) alloca (sizeof (Lisp_Object) |
1490 | * ASIZE (Vfontset_table)); | |
0d407d77 KH |
1491 | for (i = 0; i < ASIZE (Vfontset_table); i++) |
1492 | { | |
1ff005e1 KH |
1493 | elt = FONTSET_FROM_ID (i); |
1494 | if (!NILP (elt) | |
1d5d7200 KH |
1495 | && EQ (FONTSET_BASE (elt), fontset) |
1496 | && EQ (FONTSET_FRAME (elt), frame)) | |
1ff005e1 | 1497 | realized[n_realized++] = elt; |
0d407d77 | 1498 | } |
4ed46869 | 1499 | |
1d5d7200 KH |
1500 | |
1501 | table = Fmake_char_table (Qnil, Qnil); | |
1502 | /* Accumulate information of the fontset in TABLE. The format of | |
1503 | each element is ((FONT-SPEC OPENED-FONT ...) ...). */ | |
1504 | for (c = 0; c <= MAX_CHAR; ) | |
06f76f0d | 1505 | { |
06f76f0d KH |
1506 | int from, to; |
1507 | ||
1d5d7200 KH |
1508 | val = FONTSET_REF_AND_RANGE (fontset, c, from, to); |
1509 | if (VECTORP (val)) | |
06f76f0d | 1510 | { |
1d5d7200 | 1511 | Lisp_Object alist; |
06f76f0d | 1512 | |
1d5d7200 KH |
1513 | /* At first, set ALIST to ((FONT-SPEC) ...). */ |
1514 | for (alist = Qnil, i = 0; i < ASIZE (val); i++) | |
1515 | alist = Fcons (Fcons (AREF (AREF (val, i), 0), Qnil), alist); | |
1516 | alist = Fnreverse (alist); | |
0d407d77 | 1517 | |
1d5d7200 KH |
1518 | /* Then store opend font names to cdr of each elements. */ |
1519 | for (i = 0; i < n_realized; i++) | |
0d407d77 | 1520 | { |
1d5d7200 KH |
1521 | val = FONTSET_REF (realized[i], c); |
1522 | if (NILP (val)) | |
1523 | continue; | |
1524 | val = XCDR (val); | |
1525 | /* Now VAL is [[FACE-ID FONT-INDEX FONT-DEF] ...]. | |
1526 | If a font of an element is already opened, | |
1527 | FONT-INDEX of the element is integer. */ | |
1528 | for (j = 0; j < ASIZE (val); j++) | |
1529 | if (INTEGERP (AREF (AREF (val, j), 0))) | |
1530 | { | |
1531 | Lisp_Object font_idx; | |
1532 | ||
1533 | font_idx = AREF (AREF (val, j), 1); | |
1534 | elt = Fassq (AREF (AREF (AREF (val, j), 2), 0), alist); | |
1535 | if (CONSP (elt) | |
1536 | && NILP (Fmemq (font_idx, XCDR(elt)))) | |
1537 | nconc2 (elt, Fcons (font_idx, Qnil)); | |
1538 | } | |
0d407d77 | 1539 | } |
1d5d7200 KH |
1540 | for (val = alist; CONSP (val); val = XCDR (val)) |
1541 | for (elt = XCDR (XCAR (val)); CONSP (elt); elt = XCDR (elt)) | |
1542 | { | |
1543 | struct font_info *font_info | |
1544 | = (*get_font_info_func) (f, XINT (XCAR (elt))); | |
1545 | XSETCAR (elt, build_string (font_info->full_name)); | |
1546 | } | |
1547 | ||
1548 | /* Store ALIST in TABLE for characters C..TO. */ | |
1549 | char_table_set_range (table, c, to, alist); | |
0d407d77 | 1550 | } |
1d5d7200 | 1551 | c = to + 1; |
0d407d77 | 1552 | } |
a921395d | 1553 | |
1d5d7200 | 1554 | return table; |
4ed46869 KH |
1555 | } |
1556 | ||
1d5d7200 | 1557 | |
0d407d77 | 1558 | DEFUN ("fontset-font", Ffontset_font, Sfontset_font, 2, 2, 0, |
335c5470 PJ |
1559 | doc: /* Return a font name pattern for character CH in fontset NAME. |
1560 | If NAME is t, find a font name pattern in the default fontset. */) | |
1561 | (name, ch) | |
0d407d77 KH |
1562 | Lisp_Object name, ch; |
1563 | { | |
1337ac77 | 1564 | int c; |
0d407d77 KH |
1565 | Lisp_Object fontset, elt; |
1566 | ||
1567 | fontset = check_fontset_name (name); | |
1568 | ||
06f76f0d | 1569 | CHECK_CHARACTER (ch); |
0d407d77 | 1570 | c = XINT (ch); |
1d5d7200 KH |
1571 | elt = FONTSET_REF (fontset, c); |
1572 | return Fcopy_sequence (elt); | |
0d407d77 | 1573 | } |
0d407d77 KH |
1574 | |
1575 | DEFUN ("fontset-list", Ffontset_list, Sfontset_list, 0, 0, 0, | |
335c5470 PJ |
1576 | doc: /* Return a list of all defined fontset names. */) |
1577 | () | |
0d407d77 KH |
1578 | { |
1579 | Lisp_Object fontset, list; | |
1580 | int i; | |
1581 | ||
1582 | list = Qnil; | |
1583 | for (i = 0; i < ASIZE (Vfontset_table); i++) | |
1584 | { | |
1585 | fontset = FONTSET_FROM_ID (i); | |
1586 | if (!NILP (fontset) | |
1587 | && BASE_FONTSET_P (fontset)) | |
1588 | list = Fcons (FONTSET_NAME (fontset), list); | |
1589 | } | |
1ff005e1 | 1590 | |
0d407d77 KH |
1591 | return list; |
1592 | } | |
1593 | ||
dfcf069d | 1594 | void |
4ed46869 KH |
1595 | syms_of_fontset () |
1596 | { | |
4ed46869 KH |
1597 | if (!load_font_func) |
1598 | /* Window system initializer should have set proper functions. */ | |
1599 | abort (); | |
1600 | ||
1d5d7200 | 1601 | DEFSYM (Qfontset, "fontset"); |
06f76f0d | 1602 | Fput (Qfontset, Qchar_table_extra_slots, make_number (7)); |
4ed46869 | 1603 | |
1d5d7200 KH |
1604 | DEFSYM (Qprepend, "prepend"); |
1605 | DEFSYM (Qappend, "append"); | |
1606 | ||
4ed46869 KH |
1607 | Vcached_fontset_data = Qnil; |
1608 | staticpro (&Vcached_fontset_data); | |
1609 | ||
0d407d77 KH |
1610 | Vfontset_table = Fmake_vector (make_number (32), Qnil); |
1611 | staticpro (&Vfontset_table); | |
0d407d77 KH |
1612 | |
1613 | Vdefault_fontset = Fmake_char_table (Qfontset, Qnil); | |
1614 | staticpro (&Vdefault_fontset); | |
1ff005e1 KH |
1615 | FONTSET_ID (Vdefault_fontset) = make_number (0); |
1616 | FONTSET_NAME (Vdefault_fontset) | |
1617 | = build_string ("-*-*-*-*-*-*-*-*-*-*-*-*-fontset-default"); | |
06f76f0d KH |
1618 | { |
1619 | Lisp_Object default_ascii_font; | |
1620 | ||
82d9a3b9 | 1621 | #if defined (macintosh) |
06f76f0d KH |
1622 | default_ascii_font |
1623 | = build_string ("-apple-monaco-medium-r-*--*-120-*-*-*-*-mac-roman"); | |
82d9a3b9 | 1624 | #elif defined (WINDOWSNT) |
06f76f0d KH |
1625 | default_ascii_font |
1626 | = build_string ("-*-courier new-normal-r-*-*-*-100-*-*-*-*-iso8859-1"); | |
1a578e9b | 1627 | #else |
06f76f0d KH |
1628 | default_ascii_font |
1629 | = build_string ("-adobe-courier-medium-r-*-*-*-120-*-*-*-*-iso8859-1"); | |
1a578e9b | 1630 | #endif |
06f76f0d KH |
1631 | FONTSET_ASCII (Vdefault_fontset) = default_ascii_font; |
1632 | } | |
1ff005e1 KH |
1633 | AREF (Vfontset_table, 0) = Vdefault_fontset; |
1634 | next_fontset_id = 1; | |
4ed46869 KH |
1635 | |
1636 | DEFVAR_LISP ("font-encoding-alist", &Vfont_encoding_alist, | |
1d5d7200 KH |
1637 | doc: /* |
1638 | Alist of fontname patterns vs the corresponding encoding and repertory info. | |
1639 | Each element looks like (REGEXP . (ENCODING . REPERTORY)), | |
1640 | where ENCODING is a charset or a char-table, | |
1641 | and REPERTORY is a charset, a char-table, or nil. | |
1642 | ||
1643 | ENCODING is for converting a character to a glyph code of the font. | |
1644 | If ENCODING is a charset, encoding a character by the charset gives | |
1645 | the corresponding glyph code. If ENCODING is a char-table, looking up | |
1646 | the table by a character gives the corresponding glyph code. | |
1647 | ||
1648 | REPERTORY specifies a repertory of characters supported by the font. | |
1649 | If REPERTORY is a charset, all characters beloging to the charset are | |
1650 | supported. If REPERTORY is a char-table, all characters who have a | |
1651 | non-nil value in the table are supported. It REPERTORY is nil, Emacs | |
1652 | gets the repertory information by an opened font and ENCODING. */); | |
4ed46869 KH |
1653 | Vfont_encoding_alist = Qnil; |
1654 | ||
6a7e6d80 | 1655 | DEFVAR_LISP ("use-default-ascent", &Vuse_default_ascent, |
1d5d7200 KH |
1656 | doc: /* |
1657 | Char table of characters whose ascent values should be ignored. | |
335c5470 PJ |
1658 | If an entry for a character is non-nil, the ascent value of the glyph |
1659 | is assumed to be what specified by _MULE_DEFAULT_ASCENT property of a font. | |
1660 | ||
1661 | This affects how a composite character which contains | |
1662 | such a character is displayed on screen. */); | |
2aeafb78 KH |
1663 | Vuse_default_ascent = Qnil; |
1664 | ||
1665 | DEFVAR_LISP ("ignore-relative-composition", &Vignore_relative_composition, | |
1d5d7200 KH |
1666 | doc: /* |
1667 | Char table of characters which is not composed relatively. | |
335c5470 PJ |
1668 | If an entry for a character is non-nil, a composition sequence |
1669 | which contains that character is displayed so that | |
1670 | the glyph of that character is put without considering | |
1671 | an ascent and descent value of a previous character. */); | |
810abb87 | 1672 | Vignore_relative_composition = Qnil; |
6a7e6d80 | 1673 | |
01d4b817 | 1674 | DEFVAR_LISP ("alternate-fontname-alist", &Valternate_fontname_alist, |
335c5470 PJ |
1675 | doc: /* Alist of fontname vs list of the alternate fontnames. |
1676 | When a specified font name is not found, the corresponding | |
1677 | alternate fontnames (if any) are tried instead. */); | |
01d4b817 | 1678 | Valternate_fontname_alist = Qnil; |
8c83e4f9 | 1679 | |
1c283e35 | 1680 | DEFVAR_LISP ("fontset-alias-alist", &Vfontset_alias_alist, |
335c5470 | 1681 | doc: /* Alist of fontset names vs the aliases. */); |
1ff005e1 KH |
1682 | Vfontset_alias_alist = Fcons (Fcons (FONTSET_NAME (Vdefault_fontset), |
1683 | build_string ("fontset-default")), | |
1684 | Qnil); | |
1c283e35 | 1685 | |
810abb87 KH |
1686 | DEFVAR_LISP ("vertical-centering-font-regexp", |
1687 | &Vvertical_centering_font_regexp, | |
335c5470 PJ |
1688 | doc: /* *Regexp matching font names that require vertical centering on display. |
1689 | When a character is displayed with such fonts, the character is displayed | |
fc8865fc | 1690 | at the vertical center of lines. */); |
810abb87 KH |
1691 | Vvertical_centering_font_regexp = Qnil; |
1692 | ||
4ed46869 KH |
1693 | defsubr (&Squery_fontset); |
1694 | defsubr (&Snew_fontset); | |
1695 | defsubr (&Sset_fontset_font); | |
1696 | defsubr (&Sfont_info); | |
1ff005e1 | 1697 | defsubr (&Sinternal_char_font); |
4ed46869 | 1698 | defsubr (&Sfontset_info); |
0d407d77 KH |
1699 | defsubr (&Sfontset_font); |
1700 | defsubr (&Sfontset_list); | |
4ed46869 | 1701 | } |