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. |
4ed46869 | 4 | |
369314dc KH |
5 | This file is part of GNU Emacs. |
6 | ||
7 | GNU Emacs is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2, or (at your option) | |
10 | any later version. | |
4ed46869 | 11 | |
369314dc KH |
12 | GNU Emacs is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
4ed46869 | 16 | |
369314dc KH |
17 | You should have received a copy of the GNU General Public License |
18 | along with GNU Emacs; 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. */ | |
4ed46869 | 21 | |
0d407d77 KH |
22 | /* #define FONTSET_DEBUG */ |
23 | ||
4ed46869 | 24 | #include <config.h> |
0d407d77 KH |
25 | |
26 | #ifdef FONTSET_DEBUG | |
27 | #include <stdio.h> | |
28 | #endif | |
29 | ||
4ed46869 | 30 | #include "lisp.h" |
1ff005e1 | 31 | #include "buffer.h" |
4ed46869 KH |
32 | #include "charset.h" |
33 | #include "ccl.h" | |
2538fae4 | 34 | #include "keyboard.h" |
4ed46869 | 35 | #include "frame.h" |
0d407d77 | 36 | #include "dispextern.h" |
3541bb8f | 37 | #include "fontset.h" |
0d407d77 | 38 | #include "window.h" |
e5bc082b KH |
39 | #ifdef HAVE_X_WINDOWS |
40 | #include "xterm.h" | |
41 | #endif | |
42 | #ifdef WINDOWSNT | |
43 | #include "w32term.h" | |
44 | #endif | |
45 | #ifdef MAC_OS | |
46 | #include "macterm.h" | |
47 | #endif | |
0d407d77 KH |
48 | |
49 | #ifdef FONTSET_DEBUG | |
50 | #undef xassert | |
51 | #define xassert(X) do {if (!(X)) abort ();} while (0) | |
52 | #undef INLINE | |
53 | #define INLINE | |
54 | #endif | |
55 | ||
56 | ||
57 | /* FONTSET | |
58 | ||
59 | A fontset is a collection of font related information to give | |
60 | similar appearance (style, size, etc) of characters. There are two | |
61 | kinds of fontsets; base and realized. A base fontset is created by | |
62 | new-fontset from Emacs Lisp explicitly. A realized fontset is | |
63 | created implicitly when a face is realized for ASCII characters. A | |
64 | face is also realized for multibyte characters based on an ASCII | |
65 | face. All of the multibyte faces based on the same ASCII face | |
66 | share the same realized fontset. | |
fc8865fc | 67 | |
0d407d77 KH |
68 | A fontset object is implemented by a char-table. |
69 | ||
70 | An element of a base fontset is: | |
71 | (INDEX . FONTNAME) or | |
72 | (INDEX . (FOUNDRY . REGISTRY )) | |
73 | FONTNAME is a font name pattern for the corresponding character. | |
fc8865fc | 74 | FOUNDRY and REGISTRY are respectively foundry and registry fields of |
0d407d77 KH |
75 | a font name for the corresponding character. INDEX specifies for |
76 | which character (or generic character) the element is defined. It | |
77 | may be different from an index to access this element. For | |
78 | instance, if a fontset defines some font for all characters of | |
79 | charset `japanese-jisx0208', INDEX is the generic character of this | |
80 | charset. REGISTRY is the | |
81 | ||
82 | An element of a realized fontset is FACE-ID which is a face to use | |
fc8865fc | 83 | for displaying the corresponding character. |
0d407d77 | 84 | |
fc8865fc | 85 | All single byte characters (ASCII and 8bit-unibyte) share the same |
11d9bd93 KH |
86 | element in a fontset. The element is stored in the first element |
87 | of the fontset. | |
0d407d77 KH |
88 | |
89 | To access or set each element, use macros FONTSET_REF and | |
90 | FONTSET_SET respectively for efficiency. | |
91 | ||
92 | A fontset has 3 extra slots. | |
93 | ||
94 | The 1st slot is an ID number of the fontset. | |
95 | ||
96 | The 2nd slot is a name of the fontset. This is nil for a realized | |
97 | face. | |
98 | ||
99 | The 3rd slot is a frame that the fontset belongs to. This is nil | |
100 | for a default face. | |
101 | ||
102 | A parent of a base fontset is nil. A parent of a realized fontset | |
103 | is a base fontset. | |
104 | ||
afe93d01 | 105 | All fontsets are recorded in Vfontset_table. |
0d407d77 KH |
106 | |
107 | ||
108 | DEFAULT FONTSET | |
109 | ||
110 | There's a special fontset named `default fontset' which defines a | |
afe93d01 KH |
111 | default fontname pattern. When a base fontset doesn't specify a |
112 | font for a specific character, the corresponding value in the | |
113 | default fontset is used. The format is the same as a base fontset. | |
0d407d77 | 114 | |
afe93d01 KH |
115 | The parent of a realized fontset created for such a face that has |
116 | no fontset is the default fontset. | |
0d407d77 KH |
117 | |
118 | ||
119 | These structures are hidden from the other codes than this file. | |
120 | The other codes handle fontsets only by their ID numbers. They | |
121 | usually use variable name `fontset' for IDs. But, in this file, we | |
fc8865fc | 122 | always use variable name `id' for IDs, and name `fontset' for the |
0d407d77 KH |
123 | actual fontset objects. |
124 | ||
125 | */ | |
126 | ||
127 | /********** VARIABLES and FUNCTION PROTOTYPES **********/ | |
128 | ||
129 | extern Lisp_Object Qfont; | |
130 | Lisp_Object Qfontset; | |
131 | ||
132 | /* Vector containing all fontsets. */ | |
133 | static Lisp_Object Vfontset_table; | |
134 | ||
fc8865fc | 135 | /* Next possibly free fontset ID. Usually this keeps the minimum |
0d407d77 KH |
136 | fontset ID not yet used. */ |
137 | static int next_fontset_id; | |
138 | ||
139 | /* The default fontset. This gives default FAMILY and REGISTRY of | |
140 | font for each characters. */ | |
141 | static Lisp_Object Vdefault_fontset; | |
4ed46869 | 142 | |
2f65c7b5 KH |
143 | /* Alist of font specifications. It override the font specification |
144 | in the default fontset. */ | |
145 | static Lisp_Object Voverriding_fontspec_alist; | |
146 | ||
4ed46869 | 147 | Lisp_Object Vfont_encoding_alist; |
6a7e6d80 | 148 | Lisp_Object Vuse_default_ascent; |
2aeafb78 | 149 | Lisp_Object Vignore_relative_composition; |
01d4b817 | 150 | Lisp_Object Valternate_fontname_alist; |
1c283e35 | 151 | Lisp_Object Vfontset_alias_alist; |
810abb87 | 152 | Lisp_Object Vvertical_centering_font_regexp; |
4ed46869 | 153 | |
0d407d77 KH |
154 | /* The following six are declarations of callback functions depending |
155 | on window system. See the comments in src/fontset.h for more | |
156 | detail. */ | |
4ed46869 KH |
157 | |
158 | /* Return a pointer to struct font_info of font FONT_IDX of frame F. */ | |
5771dcf4 | 159 | struct font_info *(*get_font_info_func) P_ ((FRAME_PTR f, int font_idx)); |
4ed46869 | 160 | |
fc8865fc PJ |
161 | /* Return a list of font names which matches PATTERN. See the documentation |
162 | of `x-list-fonts' for more details. */ | |
3541bb8f KH |
163 | Lisp_Object (*list_fonts_func) P_ ((struct frame *f, |
164 | Lisp_Object pattern, | |
165 | int size, | |
166 | int maxnames)); | |
4ed46869 KH |
167 | |
168 | /* Load a font named NAME for frame F and return a pointer to the | |
169 | information of the loaded font. If loading is failed, return 0. */ | |
5771dcf4 | 170 | struct font_info *(*load_font_func) P_ ((FRAME_PTR f, char *name, int)); |
4ed46869 KH |
171 | |
172 | /* Return a pointer to struct font_info of a font named NAME for frame F. */ | |
5771dcf4 | 173 | struct font_info *(*query_font_func) P_ ((FRAME_PTR f, char *name)); |
4ed46869 KH |
174 | |
175 | /* Additional function for setting fontset or changing fontset | |
176 | contents of frame F. */ | |
5771dcf4 AS |
177 | void (*set_frame_fontset_func) P_ ((FRAME_PTR f, Lisp_Object arg, |
178 | Lisp_Object oldval)); | |
4ed46869 | 179 | |
727fb790 KH |
180 | /* To find a CCL program, fs_load_font calls this function. |
181 | The argument is a pointer to the struct font_info. | |
fc8865fc | 182 | This function set the member `encoder' of the structure. */ |
727fb790 KH |
183 | void (*find_ccl_program_func) P_ ((struct font_info *)); |
184 | ||
4ed46869 | 185 | /* Check if any window system is used now. */ |
5771dcf4 | 186 | void (*check_window_system_func) P_ ((void)); |
4ed46869 | 187 | |
0d407d77 KH |
188 | |
189 | /* Prototype declarations for static functions. */ | |
190 | static Lisp_Object fontset_ref P_ ((Lisp_Object, int)); | |
2f65c7b5 | 191 | static Lisp_Object lookup_overriding_fontspec P_ ((Lisp_Object, int)); |
0d407d77 KH |
192 | static void fontset_set P_ ((Lisp_Object, int, Lisp_Object)); |
193 | static Lisp_Object make_fontset P_ ((Lisp_Object, Lisp_Object, Lisp_Object)); | |
194 | static int fontset_id_valid_p P_ ((int)); | |
195 | static Lisp_Object fontset_pattern_regexp P_ ((Lisp_Object)); | |
8d04974a | 196 | static Lisp_Object font_family_registry P_ ((Lisp_Object, int)); |
4ce2719d | 197 | static Lisp_Object regularize_fontname P_ ((Lisp_Object)); |
0d407d77 KH |
198 | |
199 | \f | |
200 | /********** MACROS AND FUNCTIONS TO HANDLE FONTSET **********/ | |
201 | ||
0d407d77 KH |
202 | /* Return the fontset with ID. No check of ID's validness. */ |
203 | #define FONTSET_FROM_ID(id) AREF (Vfontset_table, id) | |
204 | ||
afe93d01 | 205 | /* Macros to access special values of FONTSET. */ |
0d407d77 KH |
206 | #define FONTSET_ID(fontset) XCHAR_TABLE (fontset)->extras[0] |
207 | #define FONTSET_NAME(fontset) XCHAR_TABLE (fontset)->extras[1] | |
208 | #define FONTSET_FRAME(fontset) XCHAR_TABLE (fontset)->extras[2] | |
11d9bd93 | 209 | #define FONTSET_ASCII(fontset) XCHAR_TABLE (fontset)->contents[0] |
0d407d77 KH |
210 | #define FONTSET_BASE(fontset) XCHAR_TABLE (fontset)->parent |
211 | ||
212 | #define BASE_FONTSET_P(fontset) NILP (FONTSET_BASE(fontset)) | |
213 | ||
214 | ||
215 | /* Return the element of FONTSET (char-table) at index C (character). */ | |
216 | ||
217 | #define FONTSET_REF(fontset, c) fontset_ref (fontset, c) | |
218 | ||
afe93d01 | 219 | static Lisp_Object |
0d407d77 KH |
220 | fontset_ref (fontset, c) |
221 | Lisp_Object fontset; | |
222 | int c; | |
223 | { | |
224 | int charset, c1, c2; | |
225 | Lisp_Object elt, defalt; | |
0d407d77 KH |
226 | |
227 | if (SINGLE_BYTE_CHAR_P (c)) | |
228 | return FONTSET_ASCII (fontset); | |
229 | ||
f55d03b1 | 230 | SPLIT_CHAR (c, charset, c1, c2); |
0d407d77 KH |
231 | elt = XCHAR_TABLE (fontset)->contents[charset + 128]; |
232 | if (!SUB_CHAR_TABLE_P (elt)) | |
233 | return elt; | |
234 | defalt = XCHAR_TABLE (elt)->defalt; | |
235 | if (c1 < 32 | |
236 | || (elt = XCHAR_TABLE (elt)->contents[c1], | |
237 | NILP (elt))) | |
238 | return defalt; | |
239 | if (!SUB_CHAR_TABLE_P (elt)) | |
240 | return elt; | |
241 | defalt = XCHAR_TABLE (elt)->defalt; | |
242 | if (c2 < 32 | |
243 | || (elt = XCHAR_TABLE (elt)->contents[c2], | |
244 | NILP (elt))) | |
245 | return defalt; | |
246 | return elt; | |
247 | } | |
248 | ||
249 | ||
2f65c7b5 KH |
250 | static Lisp_Object |
251 | lookup_overriding_fontspec (frame, c) | |
252 | Lisp_Object frame; | |
253 | int c; | |
254 | { | |
255 | Lisp_Object tail; | |
256 | ||
257 | for (tail = Voverriding_fontspec_alist; CONSP (tail); tail = XCDR (tail)) | |
258 | { | |
259 | Lisp_Object val, target, elt; | |
260 | ||
261 | val = XCAR (tail); | |
262 | target = XCAR (val); | |
263 | val = XCDR (val); | |
264 | /* Now VAL is (NO-FRAME-LIST OK-FRAME-LIST CHAR FONTNAME). */ | |
265 | if (NILP (Fmemq (frame, XCAR (val))) | |
266 | && (CHAR_TABLE_P (target) | |
267 | ? ! NILP (CHAR_TABLE_REF (target, c)) | |
268 | : XINT (target) == CHAR_CHARSET (c))) | |
269 | { | |
270 | val = XCDR (val); | |
271 | elt = XCDR (val); | |
272 | if (NILP (Fmemq (frame, XCAR (val)))) | |
273 | { | |
274 | if (! face_font_available_p (XFRAME (frame), XCDR (elt))) | |
275 | { | |
276 | val = XCDR (XCAR (tail)); | |
277 | XSETCAR (val, Fcons (frame, XCAR (val))); | |
278 | continue; | |
279 | } | |
280 | XSETCAR (val, Fcons (frame, XCAR (val))); | |
281 | } | |
282 | if (NILP (XCAR (elt))) | |
283 | XSETCAR (elt, make_number (c)); | |
284 | return elt; | |
285 | } | |
286 | } | |
287 | return Qnil; | |
288 | } | |
289 | ||
0d407d77 KH |
290 | #define FONTSET_REF_VIA_BASE(fontset, c) fontset_ref_via_base (fontset, &c) |
291 | ||
afe93d01 | 292 | static Lisp_Object |
0d407d77 KH |
293 | fontset_ref_via_base (fontset, c) |
294 | Lisp_Object fontset; | |
295 | int *c; | |
296 | { | |
297 | int charset, c1, c2; | |
298 | Lisp_Object elt; | |
0d407d77 KH |
299 | |
300 | if (SINGLE_BYTE_CHAR_P (*c)) | |
301 | return FONTSET_ASCII (fontset); | |
302 | ||
2f65c7b5 KH |
303 | elt = Qnil; |
304 | if (! EQ (FONTSET_BASE (fontset), Vdefault_fontset)) | |
305 | elt = FONTSET_REF (FONTSET_BASE (fontset), *c); | |
306 | if (NILP (elt)) | |
307 | elt = lookup_overriding_fontspec (FONTSET_FRAME (fontset), *c); | |
9da88f37 | 308 | if (NILP (elt)) |
11d9bd93 | 309 | elt = FONTSET_REF (Vdefault_fontset, *c); |
0d407d77 KH |
310 | if (NILP (elt)) |
311 | return Qnil; | |
312 | ||
313 | *c = XINT (XCAR (elt)); | |
f55d03b1 | 314 | SPLIT_CHAR (*c, charset, c1, c2); |
0d407d77 KH |
315 | elt = XCHAR_TABLE (fontset)->contents[charset + 128]; |
316 | if (c1 < 32) | |
317 | return (SUB_CHAR_TABLE_P (elt) ? XCHAR_TABLE (elt)->defalt : elt); | |
318 | if (!SUB_CHAR_TABLE_P (elt)) | |
319 | return Qnil; | |
320 | elt = XCHAR_TABLE (elt)->contents[c1]; | |
321 | if (c2 < 32) | |
322 | return (SUB_CHAR_TABLE_P (elt) ? XCHAR_TABLE (elt)->defalt : elt); | |
323 | if (!SUB_CHAR_TABLE_P (elt)) | |
324 | return Qnil; | |
325 | elt = XCHAR_TABLE (elt)->contents[c2]; | |
326 | return elt; | |
327 | } | |
328 | ||
329 | ||
afe93d01 | 330 | /* Store into the element of FONTSET at index C the value NEWELT. */ |
0d407d77 KH |
331 | #define FONTSET_SET(fontset, c, newelt) fontset_set(fontset, c, newelt) |
332 | ||
333 | static void | |
334 | fontset_set (fontset, c, newelt) | |
335 | Lisp_Object fontset; | |
336 | int c; | |
337 | Lisp_Object newelt; | |
338 | { | |
339 | int charset, code[3]; | |
1337ac77 EZ |
340 | Lisp_Object *elt; |
341 | int i; | |
0d407d77 KH |
342 | |
343 | if (SINGLE_BYTE_CHAR_P (c)) | |
344 | { | |
345 | FONTSET_ASCII (fontset) = newelt; | |
346 | return; | |
347 | } | |
348 | ||
f55d03b1 | 349 | SPLIT_CHAR (c, charset, code[0], code[1]); |
0d407d77 KH |
350 | code[2] = 0; /* anchor */ |
351 | elt = &XCHAR_TABLE (fontset)->contents[charset + 128]; | |
352 | for (i = 0; code[i] > 0; i++) | |
353 | { | |
354 | if (!SUB_CHAR_TABLE_P (*elt)) | |
355 | *elt = make_sub_char_table (*elt); | |
356 | elt = &XCHAR_TABLE (*elt)->contents[code[i]]; | |
357 | } | |
358 | if (SUB_CHAR_TABLE_P (*elt)) | |
359 | XCHAR_TABLE (*elt)->defalt = newelt; | |
360 | else | |
361 | *elt = newelt; | |
362 | } | |
363 | ||
364 | ||
365 | /* Return a newly created fontset with NAME. If BASE is nil, make a | |
366 | base fontset. Otherwise make a realized fontset whose parent is | |
367 | BASE. */ | |
368 | ||
369 | static Lisp_Object | |
370 | make_fontset (frame, name, base) | |
371 | Lisp_Object frame, name, base; | |
4ed46869 | 372 | { |
1337ac77 | 373 | Lisp_Object fontset; |
0d407d77 KH |
374 | int size = ASIZE (Vfontset_table); |
375 | int id = next_fontset_id; | |
0d407d77 KH |
376 | |
377 | /* Find a free slot in Vfontset_table. Usually, next_fontset_id is | |
378 | the next available fontset ID. So it is expected that this loop | |
379 | terminates quickly. In addition, as the last element of | |
fc8865fc | 380 | Vfontset_table is always nil, we don't have to check the range of |
0d407d77 KH |
381 | id. */ |
382 | while (!NILP (AREF (Vfontset_table, id))) id++; | |
383 | ||
384 | if (id + 1 == size) | |
385 | { | |
386 | Lisp_Object tem; | |
fc8865fc | 387 | int i; |
4ed46869 | 388 | |
0d407d77 KH |
389 | tem = Fmake_vector (make_number (size + 8), Qnil); |
390 | for (i = 0; i < size; i++) | |
391 | AREF (tem, i) = AREF (Vfontset_table, i); | |
392 | Vfontset_table = tem; | |
393 | } | |
4ed46869 | 394 | |
11d9bd93 | 395 | fontset = Fmake_char_table (Qfontset, Qnil); |
0d407d77 KH |
396 | |
397 | FONTSET_ID (fontset) = make_number (id); | |
398 | FONTSET_NAME (fontset) = name; | |
399 | FONTSET_FRAME (fontset) = frame; | |
400 | FONTSET_BASE (fontset) = base; | |
401 | ||
402 | AREF (Vfontset_table, id) = fontset; | |
403 | next_fontset_id = id + 1; | |
404 | return fontset; | |
4ed46869 KH |
405 | } |
406 | ||
0d407d77 KH |
407 | |
408 | /* Return 1 if ID is a valid fontset id, else return 0. */ | |
409 | ||
410 | static INLINE int | |
411 | fontset_id_valid_p (id) | |
412 | int id; | |
413 | { | |
414 | return (id >= 0 && id < ASIZE (Vfontset_table) - 1); | |
415 | } | |
416 | ||
417 | ||
8d04974a KH |
418 | /* Extract `family' and `registry' string from FONTNAME and a cons of |
419 | them. Actually, `family' may also contain `foundry', `registry' | |
420 | may also contain `encoding' of FONTNAME. But, if FONTNAME doesn't | |
421 | conform to XLFD nor explicitely specifies the other fields | |
422 | (i.e. not using wildcard `*'), return FONTNAME. If FORCE is | |
423 | nonzero, specifications of the other fields are ignored, and return | |
424 | a cons as far as FONTNAME conform to XLFD. */ | |
0d407d77 KH |
425 | |
426 | static Lisp_Object | |
8d04974a | 427 | font_family_registry (fontname, force) |
0d407d77 | 428 | Lisp_Object fontname; |
8d04974a | 429 | int force; |
0d407d77 KH |
430 | { |
431 | Lisp_Object family, registry; | |
637ddd32 KR |
432 | const char *p = SDATA (fontname); |
433 | const char *sep[15]; | |
0d407d77 | 434 | int i = 0; |
fc8865fc | 435 | |
8d04974a KH |
436 | while (*p && i < 15) |
437 | if (*p++ == '-') | |
438 | { | |
439 | if (!force && i >= 2 && i <= 11 && *p != '*' && p[1] != '-') | |
440 | return fontname; | |
441 | sep[i++] = p; | |
442 | } | |
0d407d77 KH |
443 | if (i != 14) |
444 | return fontname; | |
445 | ||
446 | family = make_unibyte_string (sep[0], sep[2] - 1 - sep[0]); | |
447 | registry = make_unibyte_string (sep[12], p - sep[12]); | |
448 | return Fcons (family, registry); | |
449 | } | |
450 | ||
451 | \f | |
fc8865fc | 452 | /********** INTERFACES TO xfaces.c and dispextern.h **********/ |
0d407d77 KH |
453 | |
454 | /* Return name of the fontset with ID. */ | |
455 | ||
456 | Lisp_Object | |
457 | fontset_name (id) | |
458 | int id; | |
459 | { | |
460 | Lisp_Object fontset; | |
461 | fontset = FONTSET_FROM_ID (id); | |
462 | return FONTSET_NAME (fontset); | |
463 | } | |
464 | ||
465 | ||
466 | /* Return ASCII font name of the fontset with ID. */ | |
467 | ||
468 | Lisp_Object | |
469 | fontset_ascii (id) | |
470 | int id; | |
471 | { | |
472 | Lisp_Object fontset, elt; | |
473 | fontset= FONTSET_FROM_ID (id); | |
474 | elt = FONTSET_ASCII (fontset); | |
475 | return XCDR (elt); | |
476 | } | |
477 | ||
478 | ||
479 | /* Free fontset of FACE. Called from free_realized_face. */ | |
480 | ||
4ed46869 | 481 | void |
0d407d77 KH |
482 | free_face_fontset (f, face) |
483 | FRAME_PTR f; | |
484 | struct face *face; | |
4ed46869 | 485 | { |
0d407d77 | 486 | if (fontset_id_valid_p (face->fontset)) |
4ed46869 | 487 | { |
0d407d77 KH |
488 | AREF (Vfontset_table, face->fontset) = Qnil; |
489 | if (face->fontset < next_fontset_id) | |
490 | next_fontset_id = face->fontset; | |
491 | } | |
492 | } | |
18998710 | 493 | |
0d407d77 KH |
494 | |
495 | /* Return 1 iff FACE is suitable for displaying character C. | |
496 | Otherwise return 0. Called from the macro FACE_SUITABLE_FOR_CHAR_P | |
497 | when C is not a single byte character.. */ | |
498 | ||
499 | int | |
500 | face_suitable_for_char_p (face, c) | |
501 | struct face *face; | |
502 | int c; | |
503 | { | |
504 | Lisp_Object fontset, elt; | |
505 | ||
506 | if (SINGLE_BYTE_CHAR_P (c)) | |
507 | return (face == face->ascii_face); | |
508 | ||
509 | xassert (fontset_id_valid_p (face->fontset)); | |
510 | fontset = FONTSET_FROM_ID (face->fontset); | |
511 | xassert (!BASE_FONTSET_P (fontset)); | |
512 | ||
513 | elt = FONTSET_REF_VIA_BASE (fontset, c); | |
514 | return (!NILP (elt) && face->id == XFASTINT (elt)); | |
515 | } | |
516 | ||
517 | ||
518 | /* Return ID of face suitable for displaying character C on frame F. | |
519 | The selection of face is done based on the fontset of FACE. FACE | |
520 | should already have been realized for ASCII characters. Called | |
521 | from the macro FACE_FOR_CHAR when C is not a single byte character. */ | |
522 | ||
523 | int | |
524 | face_for_char (f, face, c) | |
525 | FRAME_PTR f; | |
526 | struct face *face; | |
527 | int c; | |
528 | { | |
529 | Lisp_Object fontset, elt; | |
530 | int face_id; | |
531 | ||
532 | xassert (fontset_id_valid_p (face->fontset)); | |
533 | fontset = FONTSET_FROM_ID (face->fontset); | |
534 | xassert (!BASE_FONTSET_P (fontset)); | |
535 | ||
536 | elt = FONTSET_REF_VIA_BASE (fontset, c); | |
537 | if (!NILP (elt)) | |
538 | return XINT (elt); | |
539 | ||
540 | /* No face is recorded for C in the fontset of FACE. Make a new | |
541 | realized face for C that has the same fontset. */ | |
542 | face_id = lookup_face (f, face->lface, c, face); | |
fc8865fc | 543 | |
0d407d77 KH |
544 | /* Record the face ID in FONTSET at the same index as the |
545 | information in the base fontset. */ | |
546 | FONTSET_SET (fontset, c, make_number (face_id)); | |
547 | return face_id; | |
548 | } | |
549 | ||
550 | ||
551 | /* Make a realized fontset for ASCII face FACE on frame F from the | |
552 | base fontset BASE_FONTSET_ID. If BASE_FONTSET_ID is -1, use the | |
553 | default fontset as the base. Value is the id of the new fontset. | |
554 | Called from realize_x_face. */ | |
555 | ||
556 | int | |
557 | make_fontset_for_ascii_face (f, base_fontset_id) | |
558 | FRAME_PTR f; | |
559 | int base_fontset_id; | |
560 | { | |
1337ac77 | 561 | Lisp_Object base_fontset, fontset, frame; |
0d407d77 KH |
562 | |
563 | XSETFRAME (frame, f); | |
564 | if (base_fontset_id >= 0) | |
565 | { | |
566 | base_fontset = FONTSET_FROM_ID (base_fontset_id); | |
567 | if (!BASE_FONTSET_P (base_fontset)) | |
568 | base_fontset = FONTSET_BASE (base_fontset); | |
569 | xassert (BASE_FONTSET_P (base_fontset)); | |
4ed46869 | 570 | } |
0d407d77 KH |
571 | else |
572 | base_fontset = Vdefault_fontset; | |
573 | ||
574 | fontset = make_fontset (frame, Qnil, base_fontset); | |
f3231837 | 575 | return XINT (FONTSET_ID (fontset)); |
0d407d77 KH |
576 | } |
577 | ||
578 | ||
579 | /* Return the font name pattern for C that is recorded in the fontset | |
8d04974a KH |
580 | with ID. If a font name pattern is specified (instead of a cons of |
581 | family and registry), check if a font can be opened by that pattern | |
582 | to get the fullname. If a font is opened, return that name. | |
583 | Otherwise, return nil. If ID is -1, or the fontset doesn't contain | |
0d407d77 KH |
584 | information about C, get the registry and encoding of C from the |
585 | default fontset. Called from choose_face_font. */ | |
586 | ||
587 | Lisp_Object | |
588 | fontset_font_pattern (f, id, c) | |
589 | FRAME_PTR f; | |
590 | int id, c; | |
591 | { | |
592 | Lisp_Object fontset, elt; | |
593 | struct font_info *fontp; | |
fc8865fc | 594 | |
0d407d77 KH |
595 | elt = Qnil; |
596 | if (fontset_id_valid_p (id)) | |
597 | { | |
598 | fontset = FONTSET_FROM_ID (id); | |
599 | xassert (!BASE_FONTSET_P (fontset)); | |
600 | fontset = FONTSET_BASE (fontset); | |
07836f47 KH |
601 | if (! EQ (fontset, Vdefault_fontset)) |
602 | elt = FONTSET_REF (fontset, c); | |
0d407d77 | 603 | } |
2f65c7b5 KH |
604 | if (NILP (elt)) |
605 | { | |
606 | Lisp_Object frame; | |
607 | ||
608 | XSETFRAME (frame, f); | |
609 | elt = lookup_overriding_fontspec (frame, c); | |
610 | } | |
11d9bd93 | 611 | if (NILP (elt)) |
0d407d77 KH |
612 | elt = FONTSET_REF (Vdefault_fontset, c); |
613 | ||
614 | if (!CONSP (elt)) | |
615 | return Qnil; | |
616 | if (CONSP (XCDR (elt))) | |
617 | return XCDR (elt); | |
618 | ||
619 | /* The fontset specifies only a font name pattern (not cons of | |
8d04974a KH |
620 | family and registry). If a font can be opened by that pattern, |
621 | return the name of opened font. Otherwise return nil. The | |
622 | exception is a font for single byte characters. In that case, we | |
623 | return a cons of FAMILY and REGISTRY extracted from the opened | |
624 | font name. */ | |
0d407d77 KH |
625 | elt = XCDR (elt); |
626 | xassert (STRINGP (elt)); | |
d5db4077 | 627 | fontp = FS_LOAD_FONT (f, c, SDATA (elt), -1); |
0d407d77 KH |
628 | if (!fontp) |
629 | return Qnil; | |
4ed46869 | 630 | |
8d04974a KH |
631 | return font_family_registry (build_string (fontp->full_name), |
632 | SINGLE_BYTE_CHAR_P (c)); | |
4ed46869 KH |
633 | } |
634 | ||
d5e7d534 | 635 | |
97f4db8c AI |
636 | #if defined(WINDOWSNT) && defined (_MSC_VER) |
637 | #pragma optimize("", off) | |
638 | #endif | |
639 | ||
0d407d77 KH |
640 | /* Load a font named FONTNAME to display character C on frame F. |
641 | Return a pointer to the struct font_info of the loaded font. If | |
642 | loading fails, return NULL. If FACE is non-zero and a fontset is | |
643 | assigned to it, record FACE->id in the fontset for C. If FONTNAME | |
644 | is NULL, the name is taken from the fontset of FACE or what | |
645 | specified by ID. */ | |
4ed46869 KH |
646 | |
647 | struct font_info * | |
0d407d77 | 648 | fs_load_font (f, c, fontname, id, face) |
4ed46869 | 649 | FRAME_PTR f; |
0d407d77 | 650 | int c; |
4ed46869 | 651 | char *fontname; |
0d407d77 KH |
652 | int id; |
653 | struct face *face; | |
4ed46869 | 654 | { |
0d407d77 | 655 | Lisp_Object fontset; |
4ed46869 | 656 | Lisp_Object list, elt; |
4ed46869 | 657 | int size = 0; |
4ed46869 | 658 | struct font_info *fontp; |
0d407d77 KH |
659 | int charset = CHAR_CHARSET (c); |
660 | ||
661 | if (face) | |
662 | id = face->fontset; | |
663 | if (id < 0) | |
664 | fontset = Qnil; | |
665 | else | |
666 | fontset = FONTSET_FROM_ID (id); | |
4ed46869 | 667 | |
0d407d77 KH |
668 | if (!NILP (fontset) |
669 | && !BASE_FONTSET_P (fontset)) | |
4ed46869 | 670 | { |
0d407d77 KH |
671 | elt = FONTSET_REF_VIA_BASE (fontset, c); |
672 | if (!NILP (elt)) | |
673 | { | |
674 | /* A suitable face for C is already recorded, which means | |
675 | that a proper font is already loaded. */ | |
676 | int face_id = XINT (elt); | |
4ed46869 | 677 | |
0d407d77 KH |
678 | xassert (face_id == face->id); |
679 | face = FACE_FROM_ID (f, face_id); | |
680 | return (*get_font_info_func) (f, face->font_info_id); | |
681 | } | |
4ed46869 | 682 | |
0d407d77 | 683 | if (!fontname && charset == CHARSET_ASCII) |
afbee0fa | 684 | { |
0d407d77 | 685 | elt = FONTSET_ASCII (fontset); |
d5db4077 | 686 | fontname = SDATA (XCDR (elt)); |
afbee0fa | 687 | } |
afbee0fa | 688 | } |
4ed46869 | 689 | |
0d407d77 KH |
690 | if (!fontname) |
691 | /* No way to get fontname. */ | |
692 | return 0; | |
4ed46869 | 693 | |
0d407d77 | 694 | fontp = (*load_font_func) (f, fontname, size); |
4ed46869 | 695 | if (!fontp) |
0d407d77 | 696 | return 0; |
4ed46869 | 697 | |
0d407d77 KH |
698 | /* Fill in members (charset, vertical_centering, encoding, etc) of |
699 | font_info structure that are not set by (*load_font_func). */ | |
4ed46869 KH |
700 | fontp->charset = charset; |
701 | ||
810abb87 KH |
702 | fontp->vertical_centering |
703 | = (STRINGP (Vvertical_centering_font_regexp) | |
fc8865fc | 704 | && (fast_c_string_match_ignore_case |
810abb87 KH |
705 | (Vvertical_centering_font_regexp, fontp->full_name) >= 0)); |
706 | ||
afbee0fa | 707 | if (fontp->encoding[1] != FONT_ENCODING_NOT_DECIDED) |
4ed46869 KH |
708 | { |
709 | /* The font itself tells which code points to be used. Use this | |
710 | encoding for all other charsets. */ | |
711 | int i; | |
712 | ||
713 | fontp->encoding[0] = fontp->encoding[1]; | |
467e7675 | 714 | for (i = MIN_CHARSET_OFFICIAL_DIMENSION1; i <= MAX_CHARSET; i++) |
4ed46869 KH |
715 | fontp->encoding[i] = fontp->encoding[1]; |
716 | } | |
717 | else | |
718 | { | |
0d407d77 | 719 | /* The font itself doesn't have information about encoding. */ |
4ed46869 KH |
720 | int i; |
721 | ||
40292c8a KH |
722 | fontname = fontp->full_name; |
723 | /* By default, encoding of ASCII chars is 0 (i.e. 0x00..0x7F), | |
724 | others is 1 (i.e. 0x80..0xFF). */ | |
725 | fontp->encoding[0] = 0; | |
467e7675 | 726 | for (i = MIN_CHARSET_OFFICIAL_DIMENSION1; i <= MAX_CHARSET; i++) |
4ed46869 KH |
727 | fontp->encoding[i] = 1; |
728 | /* Then override them by a specification in Vfont_encoding_alist. */ | |
7539e11f | 729 | for (list = Vfont_encoding_alist; CONSP (list); list = XCDR (list)) |
4ed46869 | 730 | { |
7539e11f | 731 | elt = XCAR (list); |
4ed46869 | 732 | if (CONSP (elt) |
7539e11f KR |
733 | && STRINGP (XCAR (elt)) && CONSP (XCDR (elt)) |
734 | && (fast_c_string_match_ignore_case (XCAR (elt), fontname) | |
4ed46869 KH |
735 | >= 0)) |
736 | { | |
737 | Lisp_Object tmp; | |
738 | ||
7539e11f KR |
739 | for (tmp = XCDR (elt); CONSP (tmp); tmp = XCDR (tmp)) |
740 | if (CONSP (XCAR (tmp)) | |
741 | && ((i = get_charset_id (XCAR (XCAR (tmp)))) | |
4ed46869 | 742 | >= 0) |
7539e11f KR |
743 | && INTEGERP (XCDR (XCAR (tmp))) |
744 | && XFASTINT (XCDR (XCAR (tmp))) < 4) | |
4ed46869 | 745 | fontp->encoding[i] |
7539e11f | 746 | = XFASTINT (XCDR (XCAR (tmp))); |
4ed46869 KH |
747 | } |
748 | } | |
749 | } | |
750 | ||
de5c0f39 | 751 | if (! fontp->font_encoder && find_ccl_program_func) |
727fb790 | 752 | (*find_ccl_program_func) (fontp); |
4ed46869 | 753 | |
1ff005e1 KH |
754 | /* If we loaded a font for a face that has fontset, record the face |
755 | ID in the fontset for C. */ | |
756 | if (face | |
757 | && !NILP (fontset) | |
758 | && !BASE_FONTSET_P (fontset)) | |
759 | FONTSET_SET (fontset, c, make_number (face->id)); | |
4ed46869 KH |
760 | return fontp; |
761 | } | |
762 | ||
97f4db8c AI |
763 | #if defined(WINDOWSNT) && defined (_MSC_VER) |
764 | #pragma optimize("", on) | |
765 | #endif | |
766 | ||
0d407d77 | 767 | \f |
4ed46869 KH |
768 | /* Cache data used by fontset_pattern_regexp. The car part is a |
769 | pattern string containing at least one wild card, the cdr part is | |
770 | the corresponding regular expression. */ | |
771 | static Lisp_Object Vcached_fontset_data; | |
772 | ||
d5db4077 | 773 | #define CACHED_FONTSET_NAME (SDATA (XCAR (Vcached_fontset_data))) |
7539e11f | 774 | #define CACHED_FONTSET_REGEX (XCDR (Vcached_fontset_data)) |
4ed46869 KH |
775 | |
776 | /* If fontset name PATTERN contains any wild card, return regular | |
777 | expression corresponding to PATTERN. */ | |
778 | ||
0d407d77 | 779 | static Lisp_Object |
4ed46869 KH |
780 | fontset_pattern_regexp (pattern) |
781 | Lisp_Object pattern; | |
782 | { | |
d5db4077 KR |
783 | if (!index (SDATA (pattern), '*') |
784 | && !index (SDATA (pattern), '?')) | |
4ed46869 | 785 | /* PATTERN does not contain any wild cards. */ |
1c283e35 | 786 | return Qnil; |
4ed46869 KH |
787 | |
788 | if (!CONSP (Vcached_fontset_data) | |
d5db4077 | 789 | || strcmp (SDATA (pattern), CACHED_FONTSET_NAME)) |
4ed46869 KH |
790 | { |
791 | /* We must at first update the cached data. */ | |
d5db4077 | 792 | char *regex = (char *) alloca (SCHARS (pattern) * 2 + 3); |
4ed46869 KH |
793 | char *p0, *p1 = regex; |
794 | ||
1c283e35 KH |
795 | /* Convert "*" to ".*", "?" to ".". */ |
796 | *p1++ = '^'; | |
d5db4077 | 797 | for (p0 = (char *) SDATA (pattern); *p0; p0++) |
4ed46869 | 798 | { |
1c283e35 | 799 | if (*p0 == '*') |
4ed46869 | 800 | { |
1c283e35 KH |
801 | *p1++ = '.'; |
802 | *p1++ = '*'; | |
4ed46869 | 803 | } |
1c283e35 | 804 | else if (*p0 == '?') |
d96d677d | 805 | *p1++ = '.'; |
1c283e35 KH |
806 | else |
807 | *p1++ = *p0; | |
4ed46869 KH |
808 | } |
809 | *p1++ = '$'; | |
810 | *p1++ = 0; | |
811 | ||
d5db4077 | 812 | Vcached_fontset_data = Fcons (build_string (SDATA (pattern)), |
4ed46869 KH |
813 | build_string (regex)); |
814 | } | |
815 | ||
816 | return CACHED_FONTSET_REGEX; | |
817 | } | |
818 | ||
0d407d77 KH |
819 | /* Return ID of the base fontset named NAME. If there's no such |
820 | fontset, return -1. */ | |
821 | ||
822 | int | |
823 | fs_query_fontset (name, regexpp) | |
824 | Lisp_Object name; | |
825 | int regexpp; | |
826 | { | |
1337ac77 | 827 | Lisp_Object tem; |
0d407d77 KH |
828 | int i; |
829 | ||
830 | name = Fdowncase (name); | |
831 | if (!regexpp) | |
832 | { | |
833 | tem = Frassoc (name, Vfontset_alias_alist); | |
834 | if (CONSP (tem) && STRINGP (XCAR (tem))) | |
835 | name = XCAR (tem); | |
836 | else | |
837 | { | |
838 | tem = fontset_pattern_regexp (name); | |
839 | if (STRINGP (tem)) | |
840 | { | |
841 | name = tem; | |
842 | regexpp = 1; | |
843 | } | |
844 | } | |
845 | } | |
846 | ||
847 | for (i = 0; i < ASIZE (Vfontset_table); i++) | |
848 | { | |
849 | Lisp_Object fontset; | |
637ddd32 | 850 | const unsigned char *this_name; |
0d407d77 KH |
851 | |
852 | fontset = FONTSET_FROM_ID (i); | |
853 | if (NILP (fontset) | |
854 | || !BASE_FONTSET_P (fontset)) | |
855 | continue; | |
856 | ||
d5db4077 | 857 | this_name = SDATA (FONTSET_NAME (fontset)); |
0d407d77 KH |
858 | if (regexpp |
859 | ? fast_c_string_match_ignore_case (name, this_name) >= 0 | |
d5db4077 | 860 | : !strcmp (SDATA (name), this_name)) |
0d407d77 KH |
861 | return i; |
862 | } | |
863 | return -1; | |
864 | } | |
865 | ||
866 | ||
727fb790 | 867 | DEFUN ("query-fontset", Fquery_fontset, Squery_fontset, 1, 2, 0, |
335c5470 PJ |
868 | doc: /* Return the name of a fontset that matches PATTERN. |
869 | The value is nil if there is no matching fontset. | |
870 | PATTERN can contain `*' or `?' as a wildcard | |
871 | just as X font name matching algorithm allows. | |
872 | If REGEXPP is non-nil, PATTERN is a regular expression. */) | |
873 | (pattern, regexpp) | |
727fb790 | 874 | Lisp_Object pattern, regexpp; |
4ed46869 | 875 | { |
0d407d77 KH |
876 | Lisp_Object fontset; |
877 | int id; | |
4ed46869 KH |
878 | |
879 | (*check_window_system_func) (); | |
880 | ||
b7826503 | 881 | CHECK_STRING (pattern); |
4ed46869 | 882 | |
d5db4077 | 883 | if (SCHARS (pattern) == 0) |
4ed46869 KH |
884 | return Qnil; |
885 | ||
0d407d77 KH |
886 | id = fs_query_fontset (pattern, !NILP (regexpp)); |
887 | if (id < 0) | |
888 | return Qnil; | |
4ed46869 | 889 | |
0d407d77 KH |
890 | fontset = FONTSET_FROM_ID (id); |
891 | return FONTSET_NAME (fontset); | |
4ed46869 KH |
892 | } |
893 | ||
0d407d77 KH |
894 | /* Return a list of base fontset names matching PATTERN on frame F. |
895 | If SIZE is not 0, it is the size (maximum bound width) of fontsets | |
fc8865fc | 896 | to be listed. */ |
4ed46869 KH |
897 | |
898 | Lisp_Object | |
899 | list_fontsets (f, pattern, size) | |
900 | FRAME_PTR f; | |
901 | Lisp_Object pattern; | |
902 | int size; | |
903 | { | |
1337ac77 | 904 | Lisp_Object frame, regexp, val; |
0d407d77 | 905 | int id; |
4ed46869 | 906 | |
0d407d77 | 907 | XSETFRAME (frame, f); |
4ed46869 | 908 | |
0d407d77 | 909 | regexp = fontset_pattern_regexp (pattern); |
4ed46869 | 910 | val = Qnil; |
4ed46869 | 911 | |
0d407d77 KH |
912 | for (id = 0; id < ASIZE (Vfontset_table); id++) |
913 | { | |
914 | Lisp_Object fontset; | |
637ddd32 | 915 | const unsigned char *name; |
0d407d77 KH |
916 | |
917 | fontset = FONTSET_FROM_ID (id); | |
918 | if (NILP (fontset) | |
919 | || !BASE_FONTSET_P (fontset) | |
920 | || !EQ (frame, FONTSET_FRAME (fontset))) | |
921 | continue; | |
d5db4077 | 922 | name = SDATA (FONTSET_NAME (fontset)); |
0d407d77 KH |
923 | |
924 | if (!NILP (regexp) | |
925 | ? (fast_c_string_match_ignore_case (regexp, name) < 0) | |
d5db4077 | 926 | : strcmp (SDATA (pattern), name)) |
0d407d77 KH |
927 | continue; |
928 | ||
929 | if (size) | |
4ed46869 | 930 | { |
0d407d77 KH |
931 | struct font_info *fontp; |
932 | fontp = FS_LOAD_FONT (f, 0, NULL, id); | |
933 | if (!fontp || size != fontp->size) | |
934 | continue; | |
4ed46869 | 935 | } |
0d407d77 | 936 | val = Fcons (Fcopy_sequence (FONTSET_NAME (fontset)), val); |
4ed46869 KH |
937 | } |
938 | ||
939 | return val; | |
940 | } | |
941 | ||
942 | DEFUN ("new-fontset", Fnew_fontset, Snew_fontset, 2, 2, 0, | |
335c5470 PJ |
943 | doc: /* Create a new fontset NAME that contains font information in FONTLIST. |
944 | FONTLIST is an alist of charsets vs corresponding font name patterns. */) | |
945 | (name, fontlist) | |
4ed46869 KH |
946 | Lisp_Object name, fontlist; |
947 | { | |
0d407d77 KH |
948 | Lisp_Object fontset, elements, ascii_font; |
949 | Lisp_Object tem, tail, elt; | |
4ed46869 KH |
950 | |
951 | (*check_window_system_func) (); | |
952 | ||
b7826503 PJ |
953 | CHECK_STRING (name); |
954 | CHECK_LIST (fontlist); | |
4ed46869 | 955 | |
0d407d77 KH |
956 | name = Fdowncase (name); |
957 | tem = Fquery_fontset (name, Qnil); | |
958 | if (!NILP (tem)) | |
9af3dc47 | 959 | error ("Fontset `%s' matches the existing fontset `%s'", |
d5db4077 | 960 | SDATA (name), SDATA (tem)); |
4ed46869 | 961 | |
0d407d77 KH |
962 | /* Check the validity of FONTLIST while creating a template for |
963 | fontset elements. */ | |
964 | elements = ascii_font = Qnil; | |
7539e11f | 965 | for (tail = fontlist; CONSP (tail); tail = XCDR (tail)) |
4ed46869 | 966 | { |
0d407d77 | 967 | int c, charset; |
4ed46869 | 968 | |
0d407d77 | 969 | tem = XCAR (tail); |
4ed46869 | 970 | if (!CONSP (tem) |
7539e11f | 971 | || (charset = get_charset_id (XCAR (tem))) < 0 |
41d79f4d KH |
972 | || (!STRINGP (XCDR (tem)) && !CONSP (XCDR (tem)))) |
973 | error ("Elements of fontlist must be a cons of charset and font name pattern"); | |
0d407d77 | 974 | |
41d79f4d KH |
975 | tem = XCDR (tem); |
976 | if (STRINGP (tem)) | |
977 | tem = Fdowncase (tem); | |
978 | else | |
979 | tem = Fcons (Fdowncase (Fcar (tem)), Fdowncase (Fcdr (tem))); | |
0d407d77 KH |
980 | if (charset == CHARSET_ASCII) |
981 | ascii_font = tem; | |
982 | else | |
983 | { | |
984 | c = MAKE_CHAR (charset, 0, 0); | |
985 | elements = Fcons (Fcons (make_number (c), tem), elements); | |
986 | } | |
4ed46869 KH |
987 | } |
988 | ||
0d407d77 KH |
989 | if (NILP (ascii_font)) |
990 | error ("No ASCII font in the fontlist"); | |
4ed46869 | 991 | |
0d407d77 KH |
992 | fontset = make_fontset (Qnil, name, Qnil); |
993 | FONTSET_ASCII (fontset) = Fcons (make_number (0), ascii_font); | |
994 | for (; CONSP (elements); elements = XCDR (elements)) | |
995 | { | |
996 | elt = XCAR (elements); | |
41d79f4d KH |
997 | tem = XCDR (elt); |
998 | if (STRINGP (tem)) | |
999 | tem = font_family_registry (tem, 0); | |
1000 | tem = Fcons (XCAR (elt), tem); | |
0d407d77 KH |
1001 | FONTSET_SET (fontset, XINT (XCAR (elt)), tem); |
1002 | } | |
4ed46869 KH |
1003 | |
1004 | return Qnil; | |
1005 | } | |
1006 | ||
4ed46869 | 1007 | |
0d407d77 KH |
1008 | /* Clear all elements of FONTSET for multibyte characters. */ |
1009 | ||
1010 | static void | |
1011 | clear_fontset_elements (fontset) | |
1012 | Lisp_Object fontset; | |
4ed46869 | 1013 | { |
0d407d77 | 1014 | int i; |
4ed46869 | 1015 | |
0d407d77 KH |
1016 | for (i = CHAR_TABLE_SINGLE_BYTE_SLOTS; i < CHAR_TABLE_ORDINARY_SLOTS; i++) |
1017 | XCHAR_TABLE (fontset)->contents[i] = Qnil; | |
1018 | } | |
4ed46869 | 1019 | |
4ed46869 | 1020 | |
0d407d77 KH |
1021 | /* Check validity of NAME as a fontset name and return the |
1022 | corresponding fontset. If not valid, signal an error. | |
e2b45cf9 | 1023 | If NAME is nil, return Vdefault_fontset. */ |
0d407d77 KH |
1024 | |
1025 | static Lisp_Object | |
1026 | check_fontset_name (name) | |
1027 | Lisp_Object name; | |
1028 | { | |
1029 | int id; | |
1030 | ||
e2b45cf9 | 1031 | if (EQ (name, Qnil)) |
0d407d77 | 1032 | return Vdefault_fontset; |
4ed46869 | 1033 | |
b7826503 | 1034 | CHECK_STRING (name); |
0d407d77 KH |
1035 | id = fs_query_fontset (name, 0); |
1036 | if (id < 0) | |
d5db4077 | 1037 | error ("Fontset `%s' does not exist", SDATA (name)); |
0d407d77 KH |
1038 | return FONTSET_FROM_ID (id); |
1039 | } | |
4ed46869 | 1040 | |
2f65c7b5 KH |
1041 | /* Downcase FONTNAME or car and cdr of FONTNAME. If FONTNAME is a |
1042 | string, maybe change FONTNAME to (FAMILY . REGISTRY). */ | |
1043 | ||
1044 | static Lisp_Object | |
4ce2719d | 1045 | regularize_fontname (Lisp_Object fontname) |
2f65c7b5 KH |
1046 | { |
1047 | Lisp_Object family, registry; | |
1048 | ||
1049 | if (STRINGP (fontname)) | |
1050 | return font_family_registry (Fdowncase (fontname), 0); | |
1051 | ||
1052 | CHECK_CONS (fontname); | |
1053 | family = XCAR (fontname); | |
1054 | registry = XCDR (fontname); | |
1055 | if (!NILP (family)) | |
1056 | { | |
1057 | CHECK_STRING (family); | |
1058 | family = Fdowncase (family); | |
1059 | } | |
1060 | if (!NILP (registry)) | |
1061 | { | |
1062 | CHECK_STRING (registry); | |
1063 | registry = Fdowncase (registry); | |
1064 | } | |
1065 | return Fcons (family, registry); | |
1066 | } | |
1067 | ||
bad421f7 | 1068 | DEFUN ("set-fontset-font", Fset_fontset_font, Sset_fontset_font, 3, 4, 0, |
335c5470 PJ |
1069 | doc: /* Modify fontset NAME to use FONTNAME for CHARACTER. |
1070 | ||
0134e6da | 1071 | If NAME is nil, modify the default fontset. |
335c5470 PJ |
1072 | CHARACTER may be a cons; (FROM . TO), where FROM and TO are |
1073 | non-generic characters. In that case, use FONTNAME | |
1074 | for all characters in the range FROM and TO (inclusive). | |
f83d92b2 | 1075 | CHARACTER may be a charset. In that case, use FONTNAME |
335c5470 PJ |
1076 | for all character in the charsets. |
1077 | ||
1078 | FONTNAME may be a cons; (FAMILY . REGISTRY), where FAMILY is a family | |
fc8865fc | 1079 | name of a font, REGISTRY is a registry name of a font. */) |
335c5470 | 1080 | (name, character, fontname, frame) |
4ea5775b | 1081 | Lisp_Object name, character, fontname, frame; |
0d407d77 KH |
1082 | { |
1083 | Lisp_Object fontset, elt; | |
1084 | Lisp_Object realized; | |
1085 | int from, to; | |
1086 | int id; | |
8a9be3ac | 1087 | Lisp_Object family, registry; |
0d407d77 KH |
1088 | |
1089 | fontset = check_fontset_name (name); | |
1090 | ||
4ea5775b | 1091 | if (CONSP (character)) |
0d407d77 KH |
1092 | { |
1093 | /* CH should be (FROM . TO) where FROM and TO are non-generic | |
1094 | characters. */ | |
b7826503 PJ |
1095 | CHECK_NUMBER_CAR (character); |
1096 | CHECK_NUMBER_CDR (character); | |
4ea5775b KH |
1097 | from = XINT (XCAR (character)); |
1098 | to = XINT (XCDR (character)); | |
0d407d77 | 1099 | if (!char_valid_p (from, 0) || !char_valid_p (to, 0)) |
7c402969 | 1100 | error ("Character range should be by non-generic characters"); |
0d407d77 KH |
1101 | if (!NILP (name) |
1102 | && (SINGLE_BYTE_CHAR_P (from) || SINGLE_BYTE_CHAR_P (to))) | |
1103 | error ("Can't change font for a single byte character"); | |
1104 | } | |
0890801b KH |
1105 | else if (SYMBOLP (character)) |
1106 | { | |
1107 | elt = Fget (character, Qcharset); | |
1108 | if (!VECTORP (elt) || ASIZE (elt) < 1 || !NATNUMP (AREF (elt, 0))) | |
20cddf4e | 1109 | error ("Invalid charset: %s", SDATA (SYMBOL_NAME (character))); |
0890801b KH |
1110 | from = MAKE_CHAR (XINT (AREF (elt, 0)), 0, 0); |
1111 | to = from; | |
1112 | } | |
0d407d77 | 1113 | else |
4ed46869 | 1114 | { |
b7826503 | 1115 | CHECK_NUMBER (character); |
4ea5775b | 1116 | from = XINT (character); |
0d407d77 KH |
1117 | to = from; |
1118 | } | |
1119 | if (!char_valid_p (from, 1)) | |
1120 | invalid_character (from); | |
1121 | if (SINGLE_BYTE_CHAR_P (from)) | |
1122 | error ("Can't change font for a single byte character"); | |
1123 | if (from < to) | |
1124 | { | |
1125 | if (!char_valid_p (to, 1)) | |
1126 | invalid_character (to); | |
1127 | if (SINGLE_BYTE_CHAR_P (to)) | |
1128 | error ("Can't change font for a single byte character"); | |
1129 | } | |
4ed46869 | 1130 | |
0d407d77 KH |
1131 | /* The arg FRAME is kept for backward compatibility. We only check |
1132 | the validity. */ | |
1133 | if (!NILP (frame)) | |
b7826503 | 1134 | CHECK_LIVE_FRAME (frame); |
4ed46869 | 1135 | |
4ce2719d | 1136 | elt = Fcons (make_number (from), regularize_fontname (fontname)); |
0d407d77 KH |
1137 | for (; from <= to; from++) |
1138 | FONTSET_SET (fontset, from, elt); | |
1139 | Foptimize_char_table (fontset); | |
4ed46869 | 1140 | |
0d407d77 KH |
1141 | /* If there's a realized fontset REALIZED whose parent is FONTSET, |
1142 | clear all the elements of REALIZED and free all multibyte faces | |
1143 | whose fontset is REALIZED. This way, the specified character(s) | |
1144 | are surely redisplayed by a correct font. */ | |
1145 | for (id = 0; id < ASIZE (Vfontset_table); id++) | |
1146 | { | |
1147 | realized = AREF (Vfontset_table, id); | |
1148 | if (!NILP (realized) | |
1149 | && !BASE_FONTSET_P (realized) | |
1150 | && EQ (FONTSET_BASE (realized), fontset)) | |
4ed46869 | 1151 | { |
0d407d77 KH |
1152 | FRAME_PTR f = XFRAME (FONTSET_FRAME (realized)); |
1153 | clear_fontset_elements (realized); | |
1154 | free_realized_multibyte_face (f, id); | |
4ed46869 | 1155 | } |
0d407d77 | 1156 | } |
4ed46869 KH |
1157 | |
1158 | return Qnil; | |
1159 | } | |
1160 | ||
1161 | DEFUN ("font-info", Ffont_info, Sfont_info, 1, 2, 0, | |
335c5470 PJ |
1162 | doc: /* Return information about a font named NAME on frame FRAME. |
1163 | If FRAME is omitted or nil, use the selected frame. | |
1164 | The returned value is a vector of OPENED-NAME, FULL-NAME, CHARSET, SIZE, | |
1165 | HEIGHT, BASELINE-OFFSET, RELATIVE-COMPOSE, and DEFAULT-ASCENT, | |
1166 | where | |
1167 | OPENED-NAME is the name used for opening the font, | |
1168 | FULL-NAME is the full name of the font, | |
1169 | SIZE is the maximum bound width of the font, | |
1170 | HEIGHT is the height of the font, | |
1171 | BASELINE-OFFSET is the upward offset pixels from ASCII baseline, | |
1172 | RELATIVE-COMPOSE and DEFAULT-ASCENT are the numbers controlling | |
1173 | how to compose characters. | |
1174 | If the named font is not yet loaded, return nil. */) | |
1175 | (name, frame) | |
4ed46869 KH |
1176 | Lisp_Object name, frame; |
1177 | { | |
1178 | FRAME_PTR f; | |
1179 | struct font_info *fontp; | |
1180 | Lisp_Object info; | |
1181 | ||
1182 | (*check_window_system_func) (); | |
1183 | ||
b7826503 | 1184 | CHECK_STRING (name); |
0d407d77 | 1185 | name = Fdowncase (name); |
4ed46869 | 1186 | if (NILP (frame)) |
18f39d0e | 1187 | frame = selected_frame; |
b7826503 | 1188 | CHECK_LIVE_FRAME (frame); |
18f39d0e | 1189 | f = XFRAME (frame); |
4ed46869 KH |
1190 | |
1191 | if (!query_font_func) | |
1192 | error ("Font query function is not supported"); | |
1193 | ||
d5db4077 | 1194 | fontp = (*query_font_func) (f, SDATA (name)); |
4ed46869 KH |
1195 | if (!fontp) |
1196 | return Qnil; | |
1197 | ||
0d407d77 | 1198 | info = Fmake_vector (make_number (7), Qnil); |
4ed46869 KH |
1199 | |
1200 | XVECTOR (info)->contents[0] = build_string (fontp->name); | |
1201 | XVECTOR (info)->contents[1] = build_string (fontp->full_name); | |
0d407d77 KH |
1202 | XVECTOR (info)->contents[2] = make_number (fontp->size); |
1203 | XVECTOR (info)->contents[3] = make_number (fontp->height); | |
1204 | XVECTOR (info)->contents[4] = make_number (fontp->baseline_offset); | |
1205 | XVECTOR (info)->contents[5] = make_number (fontp->relative_compose); | |
1206 | XVECTOR (info)->contents[6] = make_number (fontp->default_ascent); | |
4ed46869 KH |
1207 | |
1208 | return info; | |
1209 | } | |
1210 | ||
1ff005e1 | 1211 | |
e5bc082b KH |
1212 | /* Return a cons (FONT-NAME . GLYPH-CODE). |
1213 | FONT-NAME is the font name for the character at POSITION in the current | |
1ff005e1 | 1214 | buffer. This is computed from all the text properties and overlays |
cf14fd6e KH |
1215 | that apply to POSITION. POSTION may be nil, in which case, |
1216 | FONT-NAME is the font name for display the character CH with the | |
1217 | default face. | |
1218 | ||
e5bc082b KH |
1219 | GLYPH-CODE is the glyph code in the font to use for the character. |
1220 | ||
1221 | If the 2nd optional arg CH is non-nil, it is a character to check | |
1222 | the font instead of the character at POSITION. | |
1223 | ||
1224 | It returns nil in the following cases: | |
1ff005e1 KH |
1225 | |
1226 | (1) The window system doesn't have a font for the character (thus | |
1227 | it is displayed by an empty box). | |
1228 | ||
1229 | (2) The character code is invalid. | |
1230 | ||
cf14fd6e KH |
1231 | (3) If POSITION is not nil, and the current buffer is not displayed |
1232 | in any window. | |
1ff005e1 KH |
1233 | |
1234 | In addition, the returned font name may not take into account of | |
1235 | such redisplay engine hooks as what used in jit-lock-mode if | |
1236 | POSITION is currently not visible. */ | |
1237 | ||
1238 | ||
e5bc082b | 1239 | DEFUN ("internal-char-font", Finternal_char_font, Sinternal_char_font, 1, 2, 0, |
335c5470 | 1240 | doc: /* For internal use only. */) |
e5bc082b KH |
1241 | (position, ch) |
1242 | Lisp_Object position, ch; | |
1ff005e1 KH |
1243 | { |
1244 | int pos, pos_byte, dummy; | |
1245 | int face_id; | |
e5bc082b | 1246 | int c, code; |
1ff005e1 KH |
1247 | struct frame *f; |
1248 | struct face *face; | |
1249 | ||
cf14fd6e | 1250 | if (NILP (position)) |
e5bc082b KH |
1251 | { |
1252 | CHECK_NATNUM (ch); | |
1253 | c = XINT (ch); | |
cf14fd6e KH |
1254 | f = XFRAME (selected_frame); |
1255 | face_id = DEFAULT_FACE_ID; | |
1256 | } | |
1257 | else | |
1258 | { | |
1259 | Lisp_Object window; | |
1260 | struct window *w; | |
1261 | ||
1262 | CHECK_NUMBER_COERCE_MARKER (position); | |
1263 | pos = XINT (position); | |
1264 | if (pos < BEGV || pos >= ZV) | |
1265 | args_out_of_range_3 (position, make_number (BEGV), make_number (ZV)); | |
1266 | pos_byte = CHAR_TO_BYTE (pos); | |
1267 | if (NILP (ch)) | |
1268 | c = FETCH_CHAR (pos_byte); | |
1269 | else | |
1270 | { | |
1271 | CHECK_NATNUM (ch); | |
1272 | c = XINT (ch); | |
1273 | } | |
1274 | window = Fget_buffer_window (Fcurrent_buffer (), Qnil); | |
1275 | if (NILP (window)) | |
1276 | return Qnil; | |
1277 | w = XWINDOW (window); | |
1278 | f = XFRAME (w->frame); | |
1279 | face_id = face_at_buffer_position (w, pos, -1, -1, &dummy, pos + 100, 0); | |
e5bc082b | 1280 | } |
1ff005e1 KH |
1281 | if (! CHAR_VALID_P (c, 0)) |
1282 | return Qnil; | |
1ff005e1 KH |
1283 | face_id = FACE_FOR_CHAR (f, FACE_FROM_ID (f, face_id), c); |
1284 | face = FACE_FROM_ID (f, face_id); | |
e5bc082b KH |
1285 | if (! face->font || ! face->font_name) |
1286 | return Qnil; | |
1287 | ||
1288 | { | |
1289 | struct font_info *fontp = (*get_font_info_func) (f, face->font_info_id); | |
1290 | XChar2b char2b; | |
1291 | int c1, c2, charset; | |
1292 | ||
1293 | SPLIT_CHAR (c, charset, c1, c2); | |
1294 | if (c2 > 0) | |
1295 | STORE_XCHAR2B (&char2b, c1, c2); | |
1296 | else | |
1297 | STORE_XCHAR2B (&char2b, 0, c1); | |
1298 | rif->encode_char (c, &char2b, fontp, NULL); | |
1299 | code = (XCHAR2B_BYTE1 (&char2b) << 8) | XCHAR2B_BYTE2 (&char2b); | |
1300 | } | |
1301 | return Fcons (build_string (face->font_name), make_number (code)); | |
1ff005e1 KH |
1302 | } |
1303 | ||
1304 | ||
e2b45cf9 KH |
1305 | /* Called from Ffontset_info via map_char_table on each leaf of |
1306 | fontset. ARG is a copy of the default fontset. The current leaf | |
1307 | is indexed by CHARACTER and has value ELT. This function override | |
1308 | the copy by ELT if ELT is not nil. */ | |
1309 | ||
1310 | static void | |
1311 | override_font_info (fontset, character, elt) | |
1312 | Lisp_Object fontset, character, elt; | |
1313 | { | |
1314 | if (! NILP (elt)) | |
1315 | Faset (fontset, character, elt); | |
1316 | } | |
1317 | ||
1ff005e1 KH |
1318 | /* Called from Ffontset_info via map_char_table on each leaf of |
1319 | fontset. ARG is a list (LAST FONT-INFO ...), where LAST is `(last | |
1320 | ARG)' and FONT-INFOs have this form: | |
1321 | (CHAR FONT-SPEC) or ((FROM . TO) FONT-SPEC) | |
1322 | The current leaf is indexed by CHARACTER and has value ELT. This | |
1323 | function add the information of the current leaf to ARG by | |
e2b45cf9 | 1324 | appending a new element or modifying the last element. */ |
1ff005e1 KH |
1325 | |
1326 | static void | |
1327 | accumulate_font_info (arg, character, elt) | |
1328 | Lisp_Object arg, character, elt; | |
1329 | { | |
1337ac77 | 1330 | Lisp_Object last, last_char, last_elt; |
1ff005e1 | 1331 | |
11d9bd93 KH |
1332 | if (!CONSP (elt) && !SINGLE_BYTE_CHAR_P (XINT (character))) |
1333 | elt = FONTSET_REF (Vdefault_fontset, XINT (character)); | |
1ff005e1 KH |
1334 | if (!CONSP (elt)) |
1335 | return; | |
1336 | last = XCAR (arg); | |
1337 | last_char = XCAR (XCAR (last)); | |
1338 | last_elt = XCAR (XCDR (XCAR (last))); | |
1339 | elt = XCDR (elt); | |
1340 | if (!NILP (Fequal (elt, last_elt))) | |
1341 | { | |
1342 | int this_charset = CHAR_CHARSET (XINT (character)); | |
1343 | ||
1344 | if (CONSP (last_char)) /* LAST_CHAR == (FROM . TO) */ | |
1345 | { | |
1346 | if (this_charset == CHAR_CHARSET (XINT (XCAR (last_char)))) | |
1347 | { | |
f3fbd155 | 1348 | XSETCDR (last_char, character); |
1ff005e1 KH |
1349 | return; |
1350 | } | |
1351 | } | |
11d9bd93 KH |
1352 | else if (XINT (last_char) == XINT (character)) |
1353 | return; | |
1354 | else if (this_charset == CHAR_CHARSET (XINT (last_char))) | |
1ff005e1 | 1355 | { |
f3fbd155 | 1356 | XSETCAR (XCAR (last), Fcons (last_char, character)); |
11d9bd93 | 1357 | return; |
1ff005e1 KH |
1358 | } |
1359 | } | |
f3fbd155 KR |
1360 | XSETCDR (last, Fcons (Fcons (character, Fcons (elt, Qnil)), Qnil)); |
1361 | XSETCAR (arg, XCDR (last)); | |
1ff005e1 KH |
1362 | } |
1363 | ||
1364 | ||
4ed46869 | 1365 | DEFUN ("fontset-info", Ffontset_info, Sfontset_info, 1, 2, 0, |
335c5470 | 1366 | doc: /* Return information about a fontset named NAME on frame FRAME. |
0134e6da | 1367 | If NAME is nil, return information about the default fontset. |
335c5470 PJ |
1368 | The value is a vector: |
1369 | [ SIZE HEIGHT ((CHARSET-OR-RANGE FONT-SPEC OPENED ...) ...) ], | |
1370 | where, | |
1371 | SIZE is the maximum bound width of ASCII font in the fontset, | |
1372 | HEIGHT is the maximum bound height of ASCII font in the fontset, | |
1373 | CHARSET-OR-RANGE is a charset, a character (may be a generic character) | |
1374 | or a cons of two characters specifying the range of characters. | |
1375 | FONT-SPEC is a fontname pattern string or a cons (FAMILY . REGISTRY), | |
1376 | where FAMILY is a `FAMILY' field of a XLFD font name, | |
fc8865fc PJ |
1377 | REGISTRY is a `CHARSET_REGISTRY' field of a XLFD font name. |
1378 | FAMILY may contain a `FOUNDRY' field at the head. | |
335c5470 PJ |
1379 | REGISTRY may contain a `CHARSET_ENCODING' field at the tail. |
1380 | OPENEDs are names of fonts actually opened. | |
1381 | If the ASCII font is not yet opened, SIZE and HEIGHT are 0. | |
1382 | If FRAME is omitted, it defaults to the currently selected frame. */) | |
1383 | (name, frame) | |
4ed46869 KH |
1384 | Lisp_Object name, frame; |
1385 | { | |
1ff005e1 | 1386 | Lisp_Object fontset; |
4ed46869 | 1387 | FRAME_PTR f; |
1ff005e1 KH |
1388 | Lisp_Object indices[3]; |
1389 | Lisp_Object val, tail, elt; | |
1390 | Lisp_Object *realized; | |
a921395d | 1391 | struct font_info *fontp = NULL; |
1ff005e1 | 1392 | int n_realized = 0; |
4ed46869 | 1393 | int i; |
fc8865fc | 1394 | |
4ed46869 KH |
1395 | (*check_window_system_func) (); |
1396 | ||
0d407d77 KH |
1397 | fontset = check_fontset_name (name); |
1398 | ||
4ed46869 | 1399 | if (NILP (frame)) |
18f39d0e | 1400 | frame = selected_frame; |
b7826503 | 1401 | CHECK_LIVE_FRAME (frame); |
18f39d0e | 1402 | f = XFRAME (frame); |
4ed46869 | 1403 | |
11d9bd93 | 1404 | /* Recode realized fontsets whose base is FONTSET in the table |
1ff005e1 KH |
1405 | `realized'. */ |
1406 | realized = (Lisp_Object *) alloca (sizeof (Lisp_Object) | |
1407 | * ASIZE (Vfontset_table)); | |
0d407d77 KH |
1408 | for (i = 0; i < ASIZE (Vfontset_table); i++) |
1409 | { | |
1ff005e1 KH |
1410 | elt = FONTSET_FROM_ID (i); |
1411 | if (!NILP (elt) | |
1412 | && EQ (FONTSET_BASE (elt), fontset)) | |
1413 | realized[n_realized++] = elt; | |
0d407d77 | 1414 | } |
4ed46869 | 1415 | |
e2b45cf9 KH |
1416 | if (! EQ (fontset, Vdefault_fontset)) |
1417 | { | |
1418 | /* Merge FONTSET onto the default fontset. */ | |
1419 | val = Fcopy_sequence (Vdefault_fontset); | |
6117a9cd | 1420 | map_char_table (override_font_info, Qnil, fontset, fontset, val, 0, indices); |
e2b45cf9 KH |
1421 | fontset = val; |
1422 | } | |
1423 | ||
1ff005e1 KH |
1424 | /* Accumulate information of the fontset in VAL. The format is |
1425 | (LAST FONT-INFO FONT-INFO ...), where FONT-INFO is (CHAR-OR-RANGE | |
1426 | FONT-SPEC). See the comment for accumulate_font_info for the | |
1427 | detail. */ | |
1428 | val = Fcons (Fcons (make_number (0), | |
1429 | Fcons (XCDR (FONTSET_ASCII (fontset)), Qnil)), | |
0d407d77 | 1430 | Qnil); |
1ff005e1 | 1431 | val = Fcons (val, val); |
6117a9cd | 1432 | map_char_table (accumulate_font_info, Qnil, fontset, fontset, val, 0, indices); |
1ff005e1 KH |
1433 | val = XCDR (val); |
1434 | ||
1435 | /* For each FONT-INFO, if CHAR_OR_RANGE (car part) is a generic | |
11d9bd93 | 1436 | character for a charset, replace it with the charset symbol. If |
1ff005e1 KH |
1437 | fonts are opened for FONT-SPEC, append the names of the fonts to |
1438 | FONT-SPEC. */ | |
1439 | for (tail = val; CONSP (tail); tail = XCDR (tail)) | |
0d407d77 | 1440 | { |
1ff005e1 KH |
1441 | int c; |
1442 | elt = XCAR (tail); | |
1443 | if (INTEGERP (XCAR (elt))) | |
0d407d77 | 1444 | { |
1ff005e1 KH |
1445 | int charset, c1, c2; |
1446 | c = XINT (XCAR (elt)); | |
1447 | SPLIT_CHAR (c, charset, c1, c2); | |
1448 | if (c1 == 0) | |
f3fbd155 | 1449 | XSETCAR (elt, CHARSET_SYMBOL (charset)); |
1ff005e1 KH |
1450 | } |
1451 | else | |
1452 | c = XINT (XCAR (XCAR (elt))); | |
1453 | for (i = 0; i < n_realized; i++) | |
1454 | { | |
1455 | Lisp_Object face_id, font; | |
0d407d77 KH |
1456 | struct face *face; |
1457 | ||
1ff005e1 KH |
1458 | face_id = FONTSET_REF_VIA_BASE (realized[i], c); |
1459 | if (INTEGERP (face_id)) | |
0d407d77 | 1460 | { |
1ff005e1 | 1461 | face = FACE_FROM_ID (f, XINT (face_id)); |
dbcf3c03 | 1462 | if (face && face->font && face->font_name) |
1ff005e1 KH |
1463 | { |
1464 | font = build_string (face->font_name); | |
1465 | if (NILP (Fmember (font, XCDR (XCDR (elt))))) | |
f3fbd155 | 1466 | XSETCDR (XCDR (elt), Fcons (font, XCDR (XCDR (elt)))); |
1ff005e1 | 1467 | } |
0d407d77 | 1468 | } |
0d407d77 KH |
1469 | } |
1470 | } | |
a921395d KH |
1471 | |
1472 | elt = Fcdr (Fcdr (Fassq (CHARSET_SYMBOL (CHARSET_ASCII), val))); | |
1473 | if (CONSP (elt)) | |
1474 | { | |
1475 | elt = XCAR (elt); | |
d5db4077 | 1476 | fontp = (*query_font_func) (f, SDATA (elt)); |
a921395d KH |
1477 | } |
1478 | val = Fmake_vector (make_number (3), val); | |
1479 | AREF (val, 0) = fontp ? make_number (fontp->size) : make_number (0); | |
1480 | AREF (val, 1) = fontp ? make_number (fontp->height) : make_number (0); | |
1481 | return val; | |
4ed46869 KH |
1482 | } |
1483 | ||
0d407d77 | 1484 | DEFUN ("fontset-font", Ffontset_font, Sfontset_font, 2, 2, 0, |
335c5470 | 1485 | doc: /* Return a font name pattern for character CH in fontset NAME. |
0134e6da | 1486 | If NAME is nil, find a font name pattern in the default fontset. */) |
335c5470 | 1487 | (name, ch) |
0d407d77 KH |
1488 | Lisp_Object name, ch; |
1489 | { | |
1337ac77 | 1490 | int c; |
0d407d77 KH |
1491 | Lisp_Object fontset, elt; |
1492 | ||
1493 | fontset = check_fontset_name (name); | |
1494 | ||
b7826503 | 1495 | CHECK_NUMBER (ch); |
0d407d77 KH |
1496 | c = XINT (ch); |
1497 | if (!char_valid_p (c, 1)) | |
1498 | invalid_character (c); | |
1499 | ||
1500 | elt = FONTSET_REF (fontset, c); | |
1501 | if (CONSP (elt)) | |
1502 | elt = XCDR (elt); | |
1503 | ||
1504 | return elt; | |
1505 | } | |
0d407d77 KH |
1506 | |
1507 | DEFUN ("fontset-list", Ffontset_list, Sfontset_list, 0, 0, 0, | |
335c5470 PJ |
1508 | doc: /* Return a list of all defined fontset names. */) |
1509 | () | |
0d407d77 KH |
1510 | { |
1511 | Lisp_Object fontset, list; | |
1512 | int i; | |
1513 | ||
1514 | list = Qnil; | |
1515 | for (i = 0; i < ASIZE (Vfontset_table); i++) | |
1516 | { | |
1517 | fontset = FONTSET_FROM_ID (i); | |
1518 | if (!NILP (fontset) | |
1519 | && BASE_FONTSET_P (fontset)) | |
1520 | list = Fcons (FONTSET_NAME (fontset), list); | |
1521 | } | |
1ff005e1 | 1522 | |
0d407d77 KH |
1523 | return list; |
1524 | } | |
1525 | ||
2f65c7b5 KH |
1526 | DEFUN ("set-overriding-fontspec-internal", Fset_overriding_fontspec_internal, |
1527 | Sset_overriding_fontspec_internal, 1, 1, 0, | |
1528 | doc: /* Internal use only. | |
1529 | ||
1530 | FONTLIST is an alist of TARGET vs FONTNAME, where TARGET is a charset | |
1531 | or a char-table, FONTNAME have the same meanings as in | |
1532 | `set-fontset-font'. | |
1533 | ||
1534 | It overrides the font specifications for each TARGET in the default | |
1535 | fontset by the corresponding FONTNAME. | |
1536 | ||
1537 | If TARGET is a charset, targets are all characters in the charset. If | |
1538 | TARGET is a char-table, targets are characters whose value is non-nil | |
1539 | in the table. | |
1540 | ||
1541 | It is intended that this function is called only from | |
1542 | `set-language-environment'. */) | |
1543 | (fontlist) | |
1544 | Lisp_Object fontlist; | |
1545 | { | |
1546 | Lisp_Object tail; | |
1547 | ||
1548 | fontlist = Fcopy_sequence (fontlist); | |
1549 | /* Now FONTLIST is ((TARGET . FONTNAME) ...). Reform it to ((TARGET | |
1550 | nil nil nil FONTSPEC) ...), where TARGET is a charset-id or a | |
1551 | char-table. */ | |
1552 | for (tail = fontlist; CONSP (tail); tail = XCDR (tail)) | |
1553 | { | |
1554 | Lisp_Object elt, target; | |
1555 | ||
1556 | elt = XCAR (tail); | |
1557 | target = Fcar (elt); | |
4ce2719d | 1558 | elt = Fcons (Qnil, regularize_fontname (Fcdr (elt))); |
2f65c7b5 KH |
1559 | if (! CHAR_TABLE_P (target)) |
1560 | { | |
1561 | int charset, c; | |
1562 | ||
1563 | CHECK_SYMBOL (target); | |
1564 | charset = get_charset_id (target); | |
1565 | if (charset < 0) | |
1566 | error ("Invalid charset %s", SDATA (SYMBOL_NAME (target))); | |
1567 | target = make_number (charset); | |
1568 | c = MAKE_CHAR (charset, 0, 0); | |
1569 | XSETCAR (elt, make_number (c)); | |
1570 | } | |
1571 | elt = Fcons (target, Fcons (Qnil, Fcons (Qnil, elt))); | |
1572 | XSETCAR (tail, elt); | |
1573 | } | |
1574 | Voverriding_fontspec_alist = fontlist; | |
1575 | clear_face_cache (0); | |
1576 | ++windows_or_buffers_changed; | |
1577 | return Qnil; | |
1578 | } | |
1579 | ||
dfcf069d | 1580 | void |
4ed46869 KH |
1581 | syms_of_fontset () |
1582 | { | |
4ed46869 KH |
1583 | if (!load_font_func) |
1584 | /* Window system initializer should have set proper functions. */ | |
1585 | abort (); | |
1586 | ||
6a7e6d80 | 1587 | Qfontset = intern ("fontset"); |
4ed46869 | 1588 | staticpro (&Qfontset); |
0d407d77 | 1589 | Fput (Qfontset, Qchar_table_extra_slots, make_number (3)); |
4ed46869 KH |
1590 | |
1591 | Vcached_fontset_data = Qnil; | |
1592 | staticpro (&Vcached_fontset_data); | |
1593 | ||
0d407d77 KH |
1594 | Vfontset_table = Fmake_vector (make_number (32), Qnil); |
1595 | staticpro (&Vfontset_table); | |
0d407d77 KH |
1596 | |
1597 | Vdefault_fontset = Fmake_char_table (Qfontset, Qnil); | |
1598 | staticpro (&Vdefault_fontset); | |
1ff005e1 KH |
1599 | FONTSET_ID (Vdefault_fontset) = make_number (0); |
1600 | FONTSET_NAME (Vdefault_fontset) | |
1601 | = build_string ("-*-*-*-*-*-*-*-*-*-*-*-*-fontset-default"); | |
e0f712ba | 1602 | #if defined (MAC_OS) |
1a578e9b AC |
1603 | FONTSET_ASCII (Vdefault_fontset) |
1604 | = Fcons (make_number (0), | |
f00691a3 | 1605 | build_string ("-apple-monaco-medium-r-*--*-120-*-*-*-*-mac-roman")); |
82d9a3b9 JR |
1606 | #elif defined (WINDOWSNT) |
1607 | FONTSET_ASCII (Vdefault_fontset) | |
1608 | = Fcons (make_number (0), | |
842c80a3 | 1609 | build_string ("-*-courier new-normal-r-*-*-*-100-*-*-*-*-iso8859-1")); |
1a578e9b | 1610 | #else |
0d407d77 | 1611 | FONTSET_ASCII (Vdefault_fontset) |
afc125e1 KH |
1612 | = Fcons (make_number (0), |
1613 | build_string ("-adobe-courier-medium-r-*-*-*-120-*-*-*-*-iso8859-1")); | |
1a578e9b | 1614 | #endif |
1ff005e1 KH |
1615 | AREF (Vfontset_table, 0) = Vdefault_fontset; |
1616 | next_fontset_id = 1; | |
4ed46869 | 1617 | |
2f65c7b5 KH |
1618 | Voverriding_fontspec_alist = Qnil; |
1619 | staticpro (&Voverriding_fontspec_alist); | |
1620 | ||
4ed46869 | 1621 | DEFVAR_LISP ("font-encoding-alist", &Vfont_encoding_alist, |
335c5470 PJ |
1622 | doc: /* Alist of fontname patterns vs corresponding encoding info. |
1623 | Each element looks like (REGEXP . ENCODING-INFO), | |
1624 | where ENCODING-INFO is an alist of CHARSET vs ENCODING. | |
1625 | ENCODING is one of the following integer values: | |
1626 | 0: code points 0x20..0x7F or 0x2020..0x7F7F are used, | |
1627 | 1: code points 0xA0..0xFF or 0xA0A0..0xFFFF are used, | |
1628 | 2: code points 0x20A0..0x7FFF are used, | |
1629 | 3: code points 0xA020..0xFF7F are used. */); | |
4ed46869 | 1630 | Vfont_encoding_alist = Qnil; |
77c49b4c KH |
1631 | Vfont_encoding_alist |
1632 | = Fcons (Fcons (build_string ("JISX0201"), | |
1633 | Fcons (Fcons (intern ("latin-jisx0201"), make_number (0)), | |
1634 | Qnil)), | |
1635 | Vfont_encoding_alist); | |
1636 | Vfont_encoding_alist | |
1637 | = Fcons (Fcons (build_string ("ISO8859-1"), | |
1638 | Fcons (Fcons (intern ("ascii"), make_number (0)), | |
1639 | Qnil)), | |
1640 | Vfont_encoding_alist); | |
4ed46869 | 1641 | |
6a7e6d80 | 1642 | DEFVAR_LISP ("use-default-ascent", &Vuse_default_ascent, |
335c5470 PJ |
1643 | doc: /* Char table of characters whose ascent values should be ignored. |
1644 | If an entry for a character is non-nil, the ascent value of the glyph | |
1645 | is assumed to be what specified by _MULE_DEFAULT_ASCENT property of a font. | |
1646 | ||
1647 | This affects how a composite character which contains | |
1648 | such a character is displayed on screen. */); | |
2aeafb78 KH |
1649 | Vuse_default_ascent = Qnil; |
1650 | ||
1651 | DEFVAR_LISP ("ignore-relative-composition", &Vignore_relative_composition, | |
335c5470 PJ |
1652 | doc: /* Char table of characters which is not composed relatively. |
1653 | If an entry for a character is non-nil, a composition sequence | |
1654 | which contains that character is displayed so that | |
1655 | the glyph of that character is put without considering | |
1656 | an ascent and descent value of a previous character. */); | |
810abb87 | 1657 | Vignore_relative_composition = Qnil; |
6a7e6d80 | 1658 | |
01d4b817 | 1659 | DEFVAR_LISP ("alternate-fontname-alist", &Valternate_fontname_alist, |
335c5470 PJ |
1660 | doc: /* Alist of fontname vs list of the alternate fontnames. |
1661 | When a specified font name is not found, the corresponding | |
1662 | alternate fontnames (if any) are tried instead. */); | |
01d4b817 | 1663 | Valternate_fontname_alist = Qnil; |
8c83e4f9 | 1664 | |
1c283e35 | 1665 | DEFVAR_LISP ("fontset-alias-alist", &Vfontset_alias_alist, |
335c5470 | 1666 | doc: /* Alist of fontset names vs the aliases. */); |
1ff005e1 KH |
1667 | Vfontset_alias_alist = Fcons (Fcons (FONTSET_NAME (Vdefault_fontset), |
1668 | build_string ("fontset-default")), | |
1669 | Qnil); | |
1c283e35 | 1670 | |
810abb87 KH |
1671 | DEFVAR_LISP ("vertical-centering-font-regexp", |
1672 | &Vvertical_centering_font_regexp, | |
335c5470 PJ |
1673 | doc: /* *Regexp matching font names that require vertical centering on display. |
1674 | When a character is displayed with such fonts, the character is displayed | |
fc8865fc | 1675 | at the vertical center of lines. */); |
810abb87 KH |
1676 | Vvertical_centering_font_regexp = Qnil; |
1677 | ||
4ed46869 KH |
1678 | defsubr (&Squery_fontset); |
1679 | defsubr (&Snew_fontset); | |
1680 | defsubr (&Sset_fontset_font); | |
1681 | defsubr (&Sfont_info); | |
1ff005e1 | 1682 | defsubr (&Sinternal_char_font); |
4ed46869 | 1683 | defsubr (&Sfontset_info); |
0d407d77 KH |
1684 | defsubr (&Sfontset_font); |
1685 | defsubr (&Sfontset_list); | |
2f65c7b5 | 1686 | defsubr (&Sset_overriding_fontspec_internal); |
4ed46869 | 1687 | } |
ab5796a9 MB |
1688 | |
1689 | /* arch-tag: ea861585-2f5f-4e5b-9849-d04a9c3a3537 | |
1690 | (do not change this comment) */ |