Commit | Line | Data |
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4ed46869 | 1 | /* Fontset handler. |
85b0dba0 | 2 | Copyright (C) 2004 Free Software Foundation, Inc. |
0d407d77 | 3 | Copyright (C) 1995, 1997, 2000 Electrotechnical Laboratory, JAPAN. |
75c8c592 | 4 | Licensed to the Free Software Foundation. |
4ed46869 | 5 | |
369314dc KH |
6 | This file is part of GNU Emacs. |
7 | ||
8 | GNU Emacs is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2, or (at your option) | |
11 | any later version. | |
4ed46869 | 12 | |
369314dc KH |
13 | GNU Emacs is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
4ed46869 | 17 | |
369314dc KH |
18 | You should have received a copy of the GNU General Public License |
19 | along with GNU Emacs; see the file COPYING. If not, write to | |
20 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
21 | Boston, MA 02111-1307, USA. */ | |
4ed46869 | 22 | |
0d407d77 KH |
23 | /* #define FONTSET_DEBUG */ |
24 | ||
4ed46869 | 25 | #include <config.h> |
0d407d77 KH |
26 | |
27 | #ifdef FONTSET_DEBUG | |
28 | #include <stdio.h> | |
29 | #endif | |
30 | ||
4ed46869 | 31 | #include "lisp.h" |
1ff005e1 | 32 | #include "buffer.h" |
4ed46869 KH |
33 | #include "charset.h" |
34 | #include "ccl.h" | |
2538fae4 | 35 | #include "keyboard.h" |
4ed46869 | 36 | #include "frame.h" |
0d407d77 | 37 | #include "dispextern.h" |
3541bb8f | 38 | #include "fontset.h" |
0d407d77 | 39 | #include "window.h" |
e5bc082b KH |
40 | #ifdef HAVE_X_WINDOWS |
41 | #include "xterm.h" | |
42 | #endif | |
43 | #ifdef WINDOWSNT | |
44 | #include "w32term.h" | |
45 | #endif | |
46 | #ifdef MAC_OS | |
47 | #include "macterm.h" | |
48 | #endif | |
0d407d77 KH |
49 | |
50 | #ifdef FONTSET_DEBUG | |
51 | #undef xassert | |
52 | #define xassert(X) do {if (!(X)) abort ();} while (0) | |
53 | #undef INLINE | |
54 | #define INLINE | |
55 | #endif | |
56 | ||
57 | ||
58 | /* FONTSET | |
59 | ||
60 | A fontset is a collection of font related information to give | |
61 | similar appearance (style, size, etc) of characters. There are two | |
62 | kinds of fontsets; base and realized. A base fontset is created by | |
63 | new-fontset from Emacs Lisp explicitly. A realized fontset is | |
64 | created implicitly when a face is realized for ASCII characters. A | |
65 | face is also realized for multibyte characters based on an ASCII | |
66 | face. All of the multibyte faces based on the same ASCII face | |
67 | share the same realized fontset. | |
fc8865fc | 68 | |
0d407d77 KH |
69 | A fontset object is implemented by a char-table. |
70 | ||
71 | An element of a base fontset is: | |
72 | (INDEX . FONTNAME) or | |
73 | (INDEX . (FOUNDRY . REGISTRY )) | |
74 | FONTNAME is a font name pattern for the corresponding character. | |
fc8865fc | 75 | FOUNDRY and REGISTRY are respectively foundry and registry fields of |
0d407d77 KH |
76 | a font name for the corresponding character. INDEX specifies for |
77 | which character (or generic character) the element is defined. It | |
78 | may be different from an index to access this element. For | |
79 | instance, if a fontset defines some font for all characters of | |
80 | charset `japanese-jisx0208', INDEX is the generic character of this | |
81 | charset. REGISTRY is the | |
82 | ||
83 | An element of a realized fontset is FACE-ID which is a face to use | |
fc8865fc | 84 | for displaying the corresponding character. |
0d407d77 | 85 | |
fc8865fc | 86 | All single byte characters (ASCII and 8bit-unibyte) share the same |
11d9bd93 KH |
87 | element in a fontset. The element is stored in the first element |
88 | of the fontset. | |
0d407d77 KH |
89 | |
90 | To access or set each element, use macros FONTSET_REF and | |
91 | FONTSET_SET respectively for efficiency. | |
92 | ||
93 | A fontset has 3 extra slots. | |
94 | ||
95 | The 1st slot is an ID number of the fontset. | |
96 | ||
97 | The 2nd slot is a name of the fontset. This is nil for a realized | |
98 | face. | |
99 | ||
100 | The 3rd slot is a frame that the fontset belongs to. This is nil | |
101 | for a default face. | |
102 | ||
103 | A parent of a base fontset is nil. A parent of a realized fontset | |
104 | is a base fontset. | |
105 | ||
afe93d01 | 106 | All fontsets are recorded in Vfontset_table. |
0d407d77 KH |
107 | |
108 | ||
109 | DEFAULT FONTSET | |
110 | ||
111 | There's a special fontset named `default fontset' which defines a | |
afe93d01 KH |
112 | default fontname pattern. When a base fontset doesn't specify a |
113 | font for a specific character, the corresponding value in the | |
114 | default fontset is used. The format is the same as a base fontset. | |
0d407d77 | 115 | |
afe93d01 KH |
116 | The parent of a realized fontset created for such a face that has |
117 | no fontset is the default fontset. | |
0d407d77 KH |
118 | |
119 | ||
120 | These structures are hidden from the other codes than this file. | |
121 | The other codes handle fontsets only by their ID numbers. They | |
122 | usually use variable name `fontset' for IDs. But, in this file, we | |
fc8865fc | 123 | always use variable name `id' for IDs, and name `fontset' for the |
0d407d77 KH |
124 | actual fontset objects. |
125 | ||
126 | */ | |
127 | ||
128 | /********** VARIABLES and FUNCTION PROTOTYPES **********/ | |
129 | ||
130 | extern Lisp_Object Qfont; | |
131 | Lisp_Object Qfontset; | |
132 | ||
133 | /* Vector containing all fontsets. */ | |
134 | static Lisp_Object Vfontset_table; | |
135 | ||
fc8865fc | 136 | /* Next possibly free fontset ID. Usually this keeps the minimum |
0d407d77 KH |
137 | fontset ID not yet used. */ |
138 | static int next_fontset_id; | |
139 | ||
140 | /* The default fontset. This gives default FAMILY and REGISTRY of | |
141 | font for each characters. */ | |
142 | static Lisp_Object Vdefault_fontset; | |
4ed46869 | 143 | |
2f65c7b5 KH |
144 | /* Alist of font specifications. It override the font specification |
145 | in the default fontset. */ | |
146 | static Lisp_Object Voverriding_fontspec_alist; | |
147 | ||
4ed46869 | 148 | Lisp_Object Vfont_encoding_alist; |
6a7e6d80 | 149 | Lisp_Object Vuse_default_ascent; |
2aeafb78 | 150 | Lisp_Object Vignore_relative_composition; |
01d4b817 | 151 | Lisp_Object Valternate_fontname_alist; |
1c283e35 | 152 | Lisp_Object Vfontset_alias_alist; |
810abb87 | 153 | Lisp_Object Vvertical_centering_font_regexp; |
4ed46869 | 154 | |
0d407d77 KH |
155 | /* The following six are declarations of callback functions depending |
156 | on window system. See the comments in src/fontset.h for more | |
157 | detail. */ | |
4ed46869 KH |
158 | |
159 | /* Return a pointer to struct font_info of font FONT_IDX of frame F. */ | |
5771dcf4 | 160 | struct font_info *(*get_font_info_func) P_ ((FRAME_PTR f, int font_idx)); |
4ed46869 | 161 | |
fc8865fc PJ |
162 | /* Return a list of font names which matches PATTERN. See the documentation |
163 | of `x-list-fonts' for more details. */ | |
3541bb8f KH |
164 | Lisp_Object (*list_fonts_func) P_ ((struct frame *f, |
165 | Lisp_Object pattern, | |
166 | int size, | |
167 | int maxnames)); | |
4ed46869 KH |
168 | |
169 | /* Load a font named NAME for frame F and return a pointer to the | |
170 | information of the loaded font. If loading is failed, return 0. */ | |
5771dcf4 | 171 | struct font_info *(*load_font_func) P_ ((FRAME_PTR f, char *name, int)); |
4ed46869 KH |
172 | |
173 | /* Return a pointer to struct font_info of a font named NAME for frame F. */ | |
5771dcf4 | 174 | struct font_info *(*query_font_func) P_ ((FRAME_PTR f, char *name)); |
4ed46869 KH |
175 | |
176 | /* Additional function for setting fontset or changing fontset | |
177 | contents of frame F. */ | |
5771dcf4 AS |
178 | void (*set_frame_fontset_func) P_ ((FRAME_PTR f, Lisp_Object arg, |
179 | Lisp_Object oldval)); | |
4ed46869 | 180 | |
727fb790 KH |
181 | /* To find a CCL program, fs_load_font calls this function. |
182 | The argument is a pointer to the struct font_info. | |
fc8865fc | 183 | This function set the member `encoder' of the structure. */ |
727fb790 KH |
184 | void (*find_ccl_program_func) P_ ((struct font_info *)); |
185 | ||
4ed46869 | 186 | /* Check if any window system is used now. */ |
5771dcf4 | 187 | void (*check_window_system_func) P_ ((void)); |
4ed46869 | 188 | |
0d407d77 KH |
189 | |
190 | /* Prototype declarations for static functions. */ | |
191 | static Lisp_Object fontset_ref P_ ((Lisp_Object, int)); | |
2f65c7b5 | 192 | static Lisp_Object lookup_overriding_fontspec P_ ((Lisp_Object, int)); |
0d407d77 KH |
193 | static void fontset_set P_ ((Lisp_Object, int, Lisp_Object)); |
194 | static Lisp_Object make_fontset P_ ((Lisp_Object, Lisp_Object, Lisp_Object)); | |
195 | static int fontset_id_valid_p P_ ((int)); | |
196 | static Lisp_Object fontset_pattern_regexp P_ ((Lisp_Object)); | |
8d04974a | 197 | static Lisp_Object font_family_registry P_ ((Lisp_Object, int)); |
4ce2719d | 198 | static Lisp_Object regularize_fontname P_ ((Lisp_Object)); |
0d407d77 KH |
199 | |
200 | \f | |
201 | /********** MACROS AND FUNCTIONS TO HANDLE FONTSET **********/ | |
202 | ||
0d407d77 KH |
203 | /* Return the fontset with ID. No check of ID's validness. */ |
204 | #define FONTSET_FROM_ID(id) AREF (Vfontset_table, id) | |
205 | ||
afe93d01 | 206 | /* Macros to access special values of FONTSET. */ |
0d407d77 KH |
207 | #define FONTSET_ID(fontset) XCHAR_TABLE (fontset)->extras[0] |
208 | #define FONTSET_NAME(fontset) XCHAR_TABLE (fontset)->extras[1] | |
209 | #define FONTSET_FRAME(fontset) XCHAR_TABLE (fontset)->extras[2] | |
11d9bd93 | 210 | #define FONTSET_ASCII(fontset) XCHAR_TABLE (fontset)->contents[0] |
0d407d77 KH |
211 | #define FONTSET_BASE(fontset) XCHAR_TABLE (fontset)->parent |
212 | ||
213 | #define BASE_FONTSET_P(fontset) NILP (FONTSET_BASE(fontset)) | |
214 | ||
215 | ||
216 | /* Return the element of FONTSET (char-table) at index C (character). */ | |
217 | ||
218 | #define FONTSET_REF(fontset, c) fontset_ref (fontset, c) | |
219 | ||
afe93d01 | 220 | static Lisp_Object |
0d407d77 KH |
221 | fontset_ref (fontset, c) |
222 | Lisp_Object fontset; | |
223 | int c; | |
224 | { | |
225 | int charset, c1, c2; | |
226 | Lisp_Object elt, defalt; | |
0d407d77 KH |
227 | |
228 | if (SINGLE_BYTE_CHAR_P (c)) | |
229 | return FONTSET_ASCII (fontset); | |
230 | ||
f55d03b1 | 231 | SPLIT_CHAR (c, charset, c1, c2); |
0d407d77 KH |
232 | elt = XCHAR_TABLE (fontset)->contents[charset + 128]; |
233 | if (!SUB_CHAR_TABLE_P (elt)) | |
234 | return elt; | |
235 | defalt = XCHAR_TABLE (elt)->defalt; | |
236 | if (c1 < 32 | |
237 | || (elt = XCHAR_TABLE (elt)->contents[c1], | |
238 | NILP (elt))) | |
239 | return defalt; | |
240 | if (!SUB_CHAR_TABLE_P (elt)) | |
241 | return elt; | |
242 | defalt = XCHAR_TABLE (elt)->defalt; | |
243 | if (c2 < 32 | |
244 | || (elt = XCHAR_TABLE (elt)->contents[c2], | |
245 | NILP (elt))) | |
246 | return defalt; | |
247 | return elt; | |
248 | } | |
249 | ||
250 | ||
2f65c7b5 KH |
251 | static Lisp_Object |
252 | lookup_overriding_fontspec (frame, c) | |
253 | Lisp_Object frame; | |
254 | int c; | |
255 | { | |
256 | Lisp_Object tail; | |
257 | ||
258 | for (tail = Voverriding_fontspec_alist; CONSP (tail); tail = XCDR (tail)) | |
259 | { | |
260 | Lisp_Object val, target, elt; | |
261 | ||
262 | val = XCAR (tail); | |
263 | target = XCAR (val); | |
264 | val = XCDR (val); | |
265 | /* Now VAL is (NO-FRAME-LIST OK-FRAME-LIST CHAR FONTNAME). */ | |
266 | if (NILP (Fmemq (frame, XCAR (val))) | |
267 | && (CHAR_TABLE_P (target) | |
268 | ? ! NILP (CHAR_TABLE_REF (target, c)) | |
269 | : XINT (target) == CHAR_CHARSET (c))) | |
270 | { | |
271 | val = XCDR (val); | |
272 | elt = XCDR (val); | |
273 | if (NILP (Fmemq (frame, XCAR (val)))) | |
274 | { | |
275 | if (! face_font_available_p (XFRAME (frame), XCDR (elt))) | |
276 | { | |
277 | val = XCDR (XCAR (tail)); | |
278 | XSETCAR (val, Fcons (frame, XCAR (val))); | |
279 | continue; | |
280 | } | |
281 | XSETCAR (val, Fcons (frame, XCAR (val))); | |
282 | } | |
283 | if (NILP (XCAR (elt))) | |
284 | XSETCAR (elt, make_number (c)); | |
285 | return elt; | |
286 | } | |
287 | } | |
288 | return Qnil; | |
289 | } | |
290 | ||
0d407d77 KH |
291 | #define FONTSET_REF_VIA_BASE(fontset, c) fontset_ref_via_base (fontset, &c) |
292 | ||
afe93d01 | 293 | static Lisp_Object |
0d407d77 KH |
294 | fontset_ref_via_base (fontset, c) |
295 | Lisp_Object fontset; | |
296 | int *c; | |
297 | { | |
298 | int charset, c1, c2; | |
299 | Lisp_Object elt; | |
0d407d77 KH |
300 | |
301 | if (SINGLE_BYTE_CHAR_P (*c)) | |
302 | return FONTSET_ASCII (fontset); | |
303 | ||
2f65c7b5 KH |
304 | elt = Qnil; |
305 | if (! EQ (FONTSET_BASE (fontset), Vdefault_fontset)) | |
306 | elt = FONTSET_REF (FONTSET_BASE (fontset), *c); | |
307 | if (NILP (elt)) | |
308 | elt = lookup_overriding_fontspec (FONTSET_FRAME (fontset), *c); | |
9da88f37 | 309 | if (NILP (elt)) |
11d9bd93 | 310 | elt = FONTSET_REF (Vdefault_fontset, *c); |
0d407d77 KH |
311 | if (NILP (elt)) |
312 | return Qnil; | |
313 | ||
314 | *c = XINT (XCAR (elt)); | |
f55d03b1 | 315 | SPLIT_CHAR (*c, charset, c1, c2); |
0d407d77 KH |
316 | elt = XCHAR_TABLE (fontset)->contents[charset + 128]; |
317 | if (c1 < 32) | |
318 | return (SUB_CHAR_TABLE_P (elt) ? XCHAR_TABLE (elt)->defalt : elt); | |
319 | if (!SUB_CHAR_TABLE_P (elt)) | |
320 | return Qnil; | |
321 | elt = XCHAR_TABLE (elt)->contents[c1]; | |
322 | if (c2 < 32) | |
323 | return (SUB_CHAR_TABLE_P (elt) ? XCHAR_TABLE (elt)->defalt : elt); | |
324 | if (!SUB_CHAR_TABLE_P (elt)) | |
325 | return Qnil; | |
326 | elt = XCHAR_TABLE (elt)->contents[c2]; | |
327 | return elt; | |
328 | } | |
329 | ||
330 | ||
afe93d01 | 331 | /* Store into the element of FONTSET at index C the value NEWELT. */ |
0d407d77 KH |
332 | #define FONTSET_SET(fontset, c, newelt) fontset_set(fontset, c, newelt) |
333 | ||
334 | static void | |
335 | fontset_set (fontset, c, newelt) | |
336 | Lisp_Object fontset; | |
337 | int c; | |
338 | Lisp_Object newelt; | |
339 | { | |
340 | int charset, code[3]; | |
1337ac77 EZ |
341 | Lisp_Object *elt; |
342 | int i; | |
0d407d77 KH |
343 | |
344 | if (SINGLE_BYTE_CHAR_P (c)) | |
345 | { | |
346 | FONTSET_ASCII (fontset) = newelt; | |
347 | return; | |
348 | } | |
349 | ||
f55d03b1 | 350 | SPLIT_CHAR (c, charset, code[0], code[1]); |
0d407d77 KH |
351 | code[2] = 0; /* anchor */ |
352 | elt = &XCHAR_TABLE (fontset)->contents[charset + 128]; | |
353 | for (i = 0; code[i] > 0; i++) | |
354 | { | |
355 | if (!SUB_CHAR_TABLE_P (*elt)) | |
356 | *elt = make_sub_char_table (*elt); | |
357 | elt = &XCHAR_TABLE (*elt)->contents[code[i]]; | |
358 | } | |
359 | if (SUB_CHAR_TABLE_P (*elt)) | |
360 | XCHAR_TABLE (*elt)->defalt = newelt; | |
361 | else | |
362 | *elt = newelt; | |
363 | } | |
364 | ||
365 | ||
366 | /* Return a newly created fontset with NAME. If BASE is nil, make a | |
367 | base fontset. Otherwise make a realized fontset whose parent is | |
368 | BASE. */ | |
369 | ||
370 | static Lisp_Object | |
371 | make_fontset (frame, name, base) | |
372 | Lisp_Object frame, name, base; | |
4ed46869 | 373 | { |
1337ac77 | 374 | Lisp_Object fontset; |
0d407d77 KH |
375 | int size = ASIZE (Vfontset_table); |
376 | int id = next_fontset_id; | |
0d407d77 KH |
377 | |
378 | /* Find a free slot in Vfontset_table. Usually, next_fontset_id is | |
379 | the next available fontset ID. So it is expected that this loop | |
380 | terminates quickly. In addition, as the last element of | |
fc8865fc | 381 | Vfontset_table is always nil, we don't have to check the range of |
0d407d77 KH |
382 | id. */ |
383 | while (!NILP (AREF (Vfontset_table, id))) id++; | |
384 | ||
385 | if (id + 1 == size) | |
386 | { | |
387 | Lisp_Object tem; | |
fc8865fc | 388 | int i; |
4ed46869 | 389 | |
0d407d77 KH |
390 | tem = Fmake_vector (make_number (size + 8), Qnil); |
391 | for (i = 0; i < size; i++) | |
392 | AREF (tem, i) = AREF (Vfontset_table, i); | |
393 | Vfontset_table = tem; | |
394 | } | |
4ed46869 | 395 | |
11d9bd93 | 396 | fontset = Fmake_char_table (Qfontset, Qnil); |
0d407d77 KH |
397 | |
398 | FONTSET_ID (fontset) = make_number (id); | |
399 | FONTSET_NAME (fontset) = name; | |
400 | FONTSET_FRAME (fontset) = frame; | |
401 | FONTSET_BASE (fontset) = base; | |
402 | ||
403 | AREF (Vfontset_table, id) = fontset; | |
404 | next_fontset_id = id + 1; | |
405 | return fontset; | |
4ed46869 KH |
406 | } |
407 | ||
0d407d77 KH |
408 | |
409 | /* Return 1 if ID is a valid fontset id, else return 0. */ | |
410 | ||
411 | static INLINE int | |
412 | fontset_id_valid_p (id) | |
413 | int id; | |
414 | { | |
415 | return (id >= 0 && id < ASIZE (Vfontset_table) - 1); | |
416 | } | |
417 | ||
418 | ||
8d04974a KH |
419 | /* Extract `family' and `registry' string from FONTNAME and a cons of |
420 | them. Actually, `family' may also contain `foundry', `registry' | |
421 | may also contain `encoding' of FONTNAME. But, if FONTNAME doesn't | |
422 | conform to XLFD nor explicitely specifies the other fields | |
423 | (i.e. not using wildcard `*'), return FONTNAME. If FORCE is | |
424 | nonzero, specifications of the other fields are ignored, and return | |
425 | a cons as far as FONTNAME conform to XLFD. */ | |
0d407d77 KH |
426 | |
427 | static Lisp_Object | |
8d04974a | 428 | font_family_registry (fontname, force) |
0d407d77 | 429 | Lisp_Object fontname; |
8d04974a | 430 | int force; |
0d407d77 KH |
431 | { |
432 | Lisp_Object family, registry; | |
637ddd32 KR |
433 | const char *p = SDATA (fontname); |
434 | const char *sep[15]; | |
0d407d77 | 435 | int i = 0; |
fc8865fc | 436 | |
8d04974a KH |
437 | while (*p && i < 15) |
438 | if (*p++ == '-') | |
439 | { | |
440 | if (!force && i >= 2 && i <= 11 && *p != '*' && p[1] != '-') | |
441 | return fontname; | |
442 | sep[i++] = p; | |
443 | } | |
0d407d77 KH |
444 | if (i != 14) |
445 | return fontname; | |
446 | ||
447 | family = make_unibyte_string (sep[0], sep[2] - 1 - sep[0]); | |
448 | registry = make_unibyte_string (sep[12], p - sep[12]); | |
449 | return Fcons (family, registry); | |
450 | } | |
451 | ||
452 | \f | |
fc8865fc | 453 | /********** INTERFACES TO xfaces.c and dispextern.h **********/ |
0d407d77 KH |
454 | |
455 | /* Return name of the fontset with ID. */ | |
456 | ||
457 | Lisp_Object | |
458 | fontset_name (id) | |
459 | int id; | |
460 | { | |
461 | Lisp_Object fontset; | |
462 | fontset = FONTSET_FROM_ID (id); | |
463 | return FONTSET_NAME (fontset); | |
464 | } | |
465 | ||
466 | ||
467 | /* Return ASCII font name of the fontset with ID. */ | |
468 | ||
469 | Lisp_Object | |
470 | fontset_ascii (id) | |
471 | int id; | |
472 | { | |
473 | Lisp_Object fontset, elt; | |
474 | fontset= FONTSET_FROM_ID (id); | |
475 | elt = FONTSET_ASCII (fontset); | |
476 | return XCDR (elt); | |
477 | } | |
478 | ||
479 | ||
480 | /* Free fontset of FACE. Called from free_realized_face. */ | |
481 | ||
4ed46869 | 482 | void |
0d407d77 KH |
483 | free_face_fontset (f, face) |
484 | FRAME_PTR f; | |
485 | struct face *face; | |
4ed46869 | 486 | { |
0d407d77 | 487 | if (fontset_id_valid_p (face->fontset)) |
4ed46869 | 488 | { |
0d407d77 KH |
489 | AREF (Vfontset_table, face->fontset) = Qnil; |
490 | if (face->fontset < next_fontset_id) | |
491 | next_fontset_id = face->fontset; | |
492 | } | |
493 | } | |
18998710 | 494 | |
0d407d77 KH |
495 | |
496 | /* Return 1 iff FACE is suitable for displaying character C. | |
497 | Otherwise return 0. Called from the macro FACE_SUITABLE_FOR_CHAR_P | |
498 | when C is not a single byte character.. */ | |
499 | ||
500 | int | |
501 | face_suitable_for_char_p (face, c) | |
502 | struct face *face; | |
503 | int c; | |
504 | { | |
505 | Lisp_Object fontset, elt; | |
506 | ||
507 | if (SINGLE_BYTE_CHAR_P (c)) | |
508 | return (face == face->ascii_face); | |
509 | ||
510 | xassert (fontset_id_valid_p (face->fontset)); | |
511 | fontset = FONTSET_FROM_ID (face->fontset); | |
512 | xassert (!BASE_FONTSET_P (fontset)); | |
513 | ||
514 | elt = FONTSET_REF_VIA_BASE (fontset, c); | |
515 | return (!NILP (elt) && face->id == XFASTINT (elt)); | |
516 | } | |
517 | ||
518 | ||
519 | /* Return ID of face suitable for displaying character C on frame F. | |
520 | The selection of face is done based on the fontset of FACE. FACE | |
521 | should already have been realized for ASCII characters. Called | |
522 | from the macro FACE_FOR_CHAR when C is not a single byte character. */ | |
523 | ||
524 | int | |
525 | face_for_char (f, face, c) | |
526 | FRAME_PTR f; | |
527 | struct face *face; | |
528 | int c; | |
529 | { | |
530 | Lisp_Object fontset, elt; | |
531 | int face_id; | |
532 | ||
533 | xassert (fontset_id_valid_p (face->fontset)); | |
534 | fontset = FONTSET_FROM_ID (face->fontset); | |
535 | xassert (!BASE_FONTSET_P (fontset)); | |
536 | ||
537 | elt = FONTSET_REF_VIA_BASE (fontset, c); | |
538 | if (!NILP (elt)) | |
539 | return XINT (elt); | |
540 | ||
541 | /* No face is recorded for C in the fontset of FACE. Make a new | |
542 | realized face for C that has the same fontset. */ | |
543 | face_id = lookup_face (f, face->lface, c, face); | |
fc8865fc | 544 | |
0d407d77 KH |
545 | /* Record the face ID in FONTSET at the same index as the |
546 | information in the base fontset. */ | |
547 | FONTSET_SET (fontset, c, make_number (face_id)); | |
548 | return face_id; | |
549 | } | |
550 | ||
551 | ||
552 | /* Make a realized fontset for ASCII face FACE on frame F from the | |
553 | base fontset BASE_FONTSET_ID. If BASE_FONTSET_ID is -1, use the | |
554 | default fontset as the base. Value is the id of the new fontset. | |
555 | Called from realize_x_face. */ | |
556 | ||
557 | int | |
558 | make_fontset_for_ascii_face (f, base_fontset_id) | |
559 | FRAME_PTR f; | |
560 | int base_fontset_id; | |
561 | { | |
1337ac77 | 562 | Lisp_Object base_fontset, fontset, frame; |
0d407d77 KH |
563 | |
564 | XSETFRAME (frame, f); | |
565 | if (base_fontset_id >= 0) | |
566 | { | |
567 | base_fontset = FONTSET_FROM_ID (base_fontset_id); | |
568 | if (!BASE_FONTSET_P (base_fontset)) | |
569 | base_fontset = FONTSET_BASE (base_fontset); | |
570 | xassert (BASE_FONTSET_P (base_fontset)); | |
4ed46869 | 571 | } |
0d407d77 KH |
572 | else |
573 | base_fontset = Vdefault_fontset; | |
574 | ||
575 | fontset = make_fontset (frame, Qnil, base_fontset); | |
f3231837 | 576 | return XINT (FONTSET_ID (fontset)); |
0d407d77 KH |
577 | } |
578 | ||
579 | ||
580 | /* Return the font name pattern for C that is recorded in the fontset | |
8d04974a KH |
581 | with ID. If a font name pattern is specified (instead of a cons of |
582 | family and registry), check if a font can be opened by that pattern | |
583 | to get the fullname. If a font is opened, return that name. | |
584 | Otherwise, return nil. If ID is -1, or the fontset doesn't contain | |
0d407d77 KH |
585 | information about C, get the registry and encoding of C from the |
586 | default fontset. Called from choose_face_font. */ | |
587 | ||
588 | Lisp_Object | |
589 | fontset_font_pattern (f, id, c) | |
590 | FRAME_PTR f; | |
591 | int id, c; | |
592 | { | |
593 | Lisp_Object fontset, elt; | |
594 | struct font_info *fontp; | |
fc8865fc | 595 | |
0d407d77 KH |
596 | elt = Qnil; |
597 | if (fontset_id_valid_p (id)) | |
598 | { | |
599 | fontset = FONTSET_FROM_ID (id); | |
600 | xassert (!BASE_FONTSET_P (fontset)); | |
601 | fontset = FONTSET_BASE (fontset); | |
07836f47 KH |
602 | if (! EQ (fontset, Vdefault_fontset)) |
603 | elt = FONTSET_REF (fontset, c); | |
0d407d77 | 604 | } |
2f65c7b5 KH |
605 | if (NILP (elt)) |
606 | { | |
607 | Lisp_Object frame; | |
608 | ||
609 | XSETFRAME (frame, f); | |
610 | elt = lookup_overriding_fontspec (frame, c); | |
611 | } | |
11d9bd93 | 612 | if (NILP (elt)) |
0d407d77 KH |
613 | elt = FONTSET_REF (Vdefault_fontset, c); |
614 | ||
615 | if (!CONSP (elt)) | |
616 | return Qnil; | |
617 | if (CONSP (XCDR (elt))) | |
618 | return XCDR (elt); | |
619 | ||
620 | /* The fontset specifies only a font name pattern (not cons of | |
8d04974a KH |
621 | family and registry). If a font can be opened by that pattern, |
622 | return the name of opened font. Otherwise return nil. The | |
623 | exception is a font for single byte characters. In that case, we | |
624 | return a cons of FAMILY and REGISTRY extracted from the opened | |
625 | font name. */ | |
0d407d77 KH |
626 | elt = XCDR (elt); |
627 | xassert (STRINGP (elt)); | |
d5db4077 | 628 | fontp = FS_LOAD_FONT (f, c, SDATA (elt), -1); |
0d407d77 KH |
629 | if (!fontp) |
630 | return Qnil; | |
4ed46869 | 631 | |
8d04974a KH |
632 | return font_family_registry (build_string (fontp->full_name), |
633 | SINGLE_BYTE_CHAR_P (c)); | |
4ed46869 KH |
634 | } |
635 | ||
d5e7d534 | 636 | |
97f4db8c AI |
637 | #if defined(WINDOWSNT) && defined (_MSC_VER) |
638 | #pragma optimize("", off) | |
639 | #endif | |
640 | ||
0d407d77 KH |
641 | /* Load a font named FONTNAME to display character C on frame F. |
642 | Return a pointer to the struct font_info of the loaded font. If | |
643 | loading fails, return NULL. If FACE is non-zero and a fontset is | |
644 | assigned to it, record FACE->id in the fontset for C. If FONTNAME | |
645 | is NULL, the name is taken from the fontset of FACE or what | |
646 | specified by ID. */ | |
4ed46869 KH |
647 | |
648 | struct font_info * | |
0d407d77 | 649 | fs_load_font (f, c, fontname, id, face) |
4ed46869 | 650 | FRAME_PTR f; |
0d407d77 | 651 | int c; |
4ed46869 | 652 | char *fontname; |
0d407d77 KH |
653 | int id; |
654 | struct face *face; | |
4ed46869 | 655 | { |
0d407d77 | 656 | Lisp_Object fontset; |
6e1b0d8c | 657 | Lisp_Object list, elt, fullname; |
4ed46869 | 658 | int size = 0; |
4ed46869 | 659 | struct font_info *fontp; |
0d407d77 KH |
660 | int charset = CHAR_CHARSET (c); |
661 | ||
662 | if (face) | |
663 | id = face->fontset; | |
664 | if (id < 0) | |
665 | fontset = Qnil; | |
666 | else | |
667 | fontset = FONTSET_FROM_ID (id); | |
4ed46869 | 668 | |
0d407d77 KH |
669 | if (!NILP (fontset) |
670 | && !BASE_FONTSET_P (fontset)) | |
4ed46869 | 671 | { |
0d407d77 KH |
672 | elt = FONTSET_REF_VIA_BASE (fontset, c); |
673 | if (!NILP (elt)) | |
674 | { | |
675 | /* A suitable face for C is already recorded, which means | |
676 | that a proper font is already loaded. */ | |
677 | int face_id = XINT (elt); | |
4ed46869 | 678 | |
0d407d77 KH |
679 | xassert (face_id == face->id); |
680 | face = FACE_FROM_ID (f, face_id); | |
681 | return (*get_font_info_func) (f, face->font_info_id); | |
682 | } | |
4ed46869 | 683 | |
0d407d77 | 684 | if (!fontname && charset == CHARSET_ASCII) |
afbee0fa | 685 | { |
0d407d77 | 686 | elt = FONTSET_ASCII (fontset); |
d5db4077 | 687 | fontname = SDATA (XCDR (elt)); |
afbee0fa | 688 | } |
afbee0fa | 689 | } |
4ed46869 | 690 | |
0d407d77 KH |
691 | if (!fontname) |
692 | /* No way to get fontname. */ | |
693 | return 0; | |
4ed46869 | 694 | |
0d407d77 | 695 | fontp = (*load_font_func) (f, fontname, size); |
4ed46869 | 696 | if (!fontp) |
0d407d77 | 697 | return 0; |
4ed46869 | 698 | |
0d407d77 KH |
699 | /* Fill in members (charset, vertical_centering, encoding, etc) of |
700 | font_info structure that are not set by (*load_font_func). */ | |
4ed46869 KH |
701 | fontp->charset = charset; |
702 | ||
6e1b0d8c | 703 | fullname = build_string (fontp->full_name); |
810abb87 KH |
704 | fontp->vertical_centering |
705 | = (STRINGP (Vvertical_centering_font_regexp) | |
6e1b0d8c KH |
706 | && (fast_string_match_ignore_case |
707 | (Vvertical_centering_font_regexp, fullname) >= 0)); | |
810abb87 | 708 | |
afbee0fa | 709 | if (fontp->encoding[1] != FONT_ENCODING_NOT_DECIDED) |
4ed46869 KH |
710 | { |
711 | /* The font itself tells which code points to be used. Use this | |
712 | encoding for all other charsets. */ | |
713 | int i; | |
714 | ||
715 | fontp->encoding[0] = fontp->encoding[1]; | |
467e7675 | 716 | for (i = MIN_CHARSET_OFFICIAL_DIMENSION1; i <= MAX_CHARSET; i++) |
4ed46869 KH |
717 | fontp->encoding[i] = fontp->encoding[1]; |
718 | } | |
719 | else | |
720 | { | |
0d407d77 | 721 | /* The font itself doesn't have information about encoding. */ |
4ed46869 KH |
722 | int i; |
723 | ||
40292c8a KH |
724 | /* By default, encoding of ASCII chars is 0 (i.e. 0x00..0x7F), |
725 | others is 1 (i.e. 0x80..0xFF). */ | |
726 | fontp->encoding[0] = 0; | |
467e7675 | 727 | for (i = MIN_CHARSET_OFFICIAL_DIMENSION1; i <= MAX_CHARSET; i++) |
4ed46869 KH |
728 | fontp->encoding[i] = 1; |
729 | /* Then override them by a specification in Vfont_encoding_alist. */ | |
7539e11f | 730 | for (list = Vfont_encoding_alist; CONSP (list); list = XCDR (list)) |
4ed46869 | 731 | { |
7539e11f | 732 | elt = XCAR (list); |
4ed46869 | 733 | if (CONSP (elt) |
7539e11f | 734 | && STRINGP (XCAR (elt)) && CONSP (XCDR (elt)) |
6e1b0d8c | 735 | && (fast_string_match_ignore_case (XCAR (elt), fullname) >= 0)) |
4ed46869 KH |
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 | { | |
6e1b0d8c | 849 | Lisp_Object fontset, this_name; |
0d407d77 KH |
850 | |
851 | fontset = FONTSET_FROM_ID (i); | |
852 | if (NILP (fontset) | |
853 | || !BASE_FONTSET_P (fontset)) | |
854 | continue; | |
855 | ||
6e1b0d8c | 856 | this_name = FONTSET_NAME (fontset); |
0d407d77 | 857 | if (regexpp |
6e1b0d8c KH |
858 | ? fast_string_match (name, this_name) >= 0 |
859 | : !strcmp (SDATA (name), SDATA (this_name))) | |
0d407d77 KH |
860 | return i; |
861 | } | |
862 | return -1; | |
863 | } | |
864 | ||
865 | ||
727fb790 | 866 | DEFUN ("query-fontset", Fquery_fontset, Squery_fontset, 1, 2, 0, |
335c5470 PJ |
867 | doc: /* Return the name of a fontset that matches PATTERN. |
868 | The value is nil if there is no matching fontset. | |
869 | PATTERN can contain `*' or `?' as a wildcard | |
870 | just as X font name matching algorithm allows. | |
871 | If REGEXPP is non-nil, PATTERN is a regular expression. */) | |
872 | (pattern, regexpp) | |
727fb790 | 873 | Lisp_Object pattern, regexpp; |
4ed46869 | 874 | { |
0d407d77 KH |
875 | Lisp_Object fontset; |
876 | int id; | |
4ed46869 KH |
877 | |
878 | (*check_window_system_func) (); | |
879 | ||
b7826503 | 880 | CHECK_STRING (pattern); |
4ed46869 | 881 | |
d5db4077 | 882 | if (SCHARS (pattern) == 0) |
4ed46869 KH |
883 | return Qnil; |
884 | ||
0d407d77 KH |
885 | id = fs_query_fontset (pattern, !NILP (regexpp)); |
886 | if (id < 0) | |
887 | return Qnil; | |
4ed46869 | 888 | |
0d407d77 KH |
889 | fontset = FONTSET_FROM_ID (id); |
890 | return FONTSET_NAME (fontset); | |
4ed46869 KH |
891 | } |
892 | ||
0d407d77 KH |
893 | /* Return a list of base fontset names matching PATTERN on frame F. |
894 | If SIZE is not 0, it is the size (maximum bound width) of fontsets | |
fc8865fc | 895 | to be listed. */ |
4ed46869 KH |
896 | |
897 | Lisp_Object | |
898 | list_fontsets (f, pattern, size) | |
899 | FRAME_PTR f; | |
900 | Lisp_Object pattern; | |
901 | int size; | |
902 | { | |
1337ac77 | 903 | Lisp_Object frame, regexp, val; |
0d407d77 | 904 | int id; |
4ed46869 | 905 | |
0d407d77 | 906 | XSETFRAME (frame, f); |
4ed46869 | 907 | |
0d407d77 | 908 | regexp = fontset_pattern_regexp (pattern); |
4ed46869 | 909 | val = Qnil; |
4ed46869 | 910 | |
0d407d77 KH |
911 | for (id = 0; id < ASIZE (Vfontset_table); id++) |
912 | { | |
6e1b0d8c | 913 | Lisp_Object fontset, name; |
0d407d77 KH |
914 | |
915 | fontset = FONTSET_FROM_ID (id); | |
916 | if (NILP (fontset) | |
917 | || !BASE_FONTSET_P (fontset) | |
918 | || !EQ (frame, FONTSET_FRAME (fontset))) | |
919 | continue; | |
6e1b0d8c | 920 | name = FONTSET_NAME (fontset); |
0d407d77 KH |
921 | |
922 | if (!NILP (regexp) | |
6e1b0d8c KH |
923 | ? (fast_string_match (regexp, name) < 0) |
924 | : strcmp (SDATA (pattern), SDATA (name))) | |
0d407d77 KH |
925 | continue; |
926 | ||
927 | if (size) | |
4ed46869 | 928 | { |
0d407d77 KH |
929 | struct font_info *fontp; |
930 | fontp = FS_LOAD_FONT (f, 0, NULL, id); | |
931 | if (!fontp || size != fontp->size) | |
932 | continue; | |
4ed46869 | 933 | } |
0d407d77 | 934 | val = Fcons (Fcopy_sequence (FONTSET_NAME (fontset)), val); |
4ed46869 KH |
935 | } |
936 | ||
937 | return val; | |
938 | } | |
939 | ||
940 | DEFUN ("new-fontset", Fnew_fontset, Snew_fontset, 2, 2, 0, | |
335c5470 PJ |
941 | doc: /* Create a new fontset NAME that contains font information in FONTLIST. |
942 | FONTLIST is an alist of charsets vs corresponding font name patterns. */) | |
943 | (name, fontlist) | |
4ed46869 KH |
944 | Lisp_Object name, fontlist; |
945 | { | |
0d407d77 KH |
946 | Lisp_Object fontset, elements, ascii_font; |
947 | Lisp_Object tem, tail, elt; | |
4ed46869 KH |
948 | |
949 | (*check_window_system_func) (); | |
950 | ||
b7826503 PJ |
951 | CHECK_STRING (name); |
952 | CHECK_LIST (fontlist); | |
4ed46869 | 953 | |
0d407d77 KH |
954 | name = Fdowncase (name); |
955 | tem = Fquery_fontset (name, Qnil); | |
956 | if (!NILP (tem)) | |
9af3dc47 | 957 | error ("Fontset `%s' matches the existing fontset `%s'", |
d5db4077 | 958 | SDATA (name), SDATA (tem)); |
4ed46869 | 959 | |
0d407d77 KH |
960 | /* Check the validity of FONTLIST while creating a template for |
961 | fontset elements. */ | |
962 | elements = ascii_font = Qnil; | |
7539e11f | 963 | for (tail = fontlist; CONSP (tail); tail = XCDR (tail)) |
4ed46869 | 964 | { |
0d407d77 | 965 | int c, charset; |
4ed46869 | 966 | |
0d407d77 | 967 | tem = XCAR (tail); |
4ed46869 | 968 | if (!CONSP (tem) |
7539e11f | 969 | || (charset = get_charset_id (XCAR (tem))) < 0 |
41d79f4d KH |
970 | || (!STRINGP (XCDR (tem)) && !CONSP (XCDR (tem)))) |
971 | error ("Elements of fontlist must be a cons of charset and font name pattern"); | |
0d407d77 | 972 | |
41d79f4d KH |
973 | tem = XCDR (tem); |
974 | if (STRINGP (tem)) | |
975 | tem = Fdowncase (tem); | |
976 | else | |
977 | tem = Fcons (Fdowncase (Fcar (tem)), Fdowncase (Fcdr (tem))); | |
0d407d77 KH |
978 | if (charset == CHARSET_ASCII) |
979 | ascii_font = tem; | |
980 | else | |
981 | { | |
982 | c = MAKE_CHAR (charset, 0, 0); | |
983 | elements = Fcons (Fcons (make_number (c), tem), elements); | |
984 | } | |
4ed46869 KH |
985 | } |
986 | ||
0d407d77 KH |
987 | if (NILP (ascii_font)) |
988 | error ("No ASCII font in the fontlist"); | |
4ed46869 | 989 | |
0d407d77 KH |
990 | fontset = make_fontset (Qnil, name, Qnil); |
991 | FONTSET_ASCII (fontset) = Fcons (make_number (0), ascii_font); | |
992 | for (; CONSP (elements); elements = XCDR (elements)) | |
993 | { | |
994 | elt = XCAR (elements); | |
41d79f4d KH |
995 | tem = XCDR (elt); |
996 | if (STRINGP (tem)) | |
997 | tem = font_family_registry (tem, 0); | |
998 | tem = Fcons (XCAR (elt), tem); | |
0d407d77 KH |
999 | FONTSET_SET (fontset, XINT (XCAR (elt)), tem); |
1000 | } | |
4ed46869 KH |
1001 | |
1002 | return Qnil; | |
1003 | } | |
1004 | ||
4ed46869 | 1005 | |
0d407d77 KH |
1006 | /* Clear all elements of FONTSET for multibyte characters. */ |
1007 | ||
1008 | static void | |
1009 | clear_fontset_elements (fontset) | |
1010 | Lisp_Object fontset; | |
4ed46869 | 1011 | { |
0d407d77 | 1012 | int i; |
4ed46869 | 1013 | |
0d407d77 KH |
1014 | for (i = CHAR_TABLE_SINGLE_BYTE_SLOTS; i < CHAR_TABLE_ORDINARY_SLOTS; i++) |
1015 | XCHAR_TABLE (fontset)->contents[i] = Qnil; | |
1016 | } | |
4ed46869 | 1017 | |
4ed46869 | 1018 | |
0d407d77 KH |
1019 | /* Check validity of NAME as a fontset name and return the |
1020 | corresponding fontset. If not valid, signal an error. | |
e2b45cf9 | 1021 | If NAME is nil, return Vdefault_fontset. */ |
0d407d77 KH |
1022 | |
1023 | static Lisp_Object | |
1024 | check_fontset_name (name) | |
1025 | Lisp_Object name; | |
1026 | { | |
1027 | int id; | |
1028 | ||
e2b45cf9 | 1029 | if (EQ (name, Qnil)) |
0d407d77 | 1030 | return Vdefault_fontset; |
4ed46869 | 1031 | |
b7826503 | 1032 | CHECK_STRING (name); |
0d407d77 KH |
1033 | id = fs_query_fontset (name, 0); |
1034 | if (id < 0) | |
d5db4077 | 1035 | error ("Fontset `%s' does not exist", SDATA (name)); |
0d407d77 KH |
1036 | return FONTSET_FROM_ID (id); |
1037 | } | |
4ed46869 | 1038 | |
2f65c7b5 KH |
1039 | /* Downcase FONTNAME or car and cdr of FONTNAME. If FONTNAME is a |
1040 | string, maybe change FONTNAME to (FAMILY . REGISTRY). */ | |
1041 | ||
1042 | static Lisp_Object | |
4ce2719d | 1043 | regularize_fontname (Lisp_Object fontname) |
2f65c7b5 KH |
1044 | { |
1045 | Lisp_Object family, registry; | |
1046 | ||
1047 | if (STRINGP (fontname)) | |
1048 | return font_family_registry (Fdowncase (fontname), 0); | |
1049 | ||
1050 | CHECK_CONS (fontname); | |
1051 | family = XCAR (fontname); | |
1052 | registry = XCDR (fontname); | |
1053 | if (!NILP (family)) | |
1054 | { | |
1055 | CHECK_STRING (family); | |
1056 | family = Fdowncase (family); | |
1057 | } | |
1058 | if (!NILP (registry)) | |
1059 | { | |
1060 | CHECK_STRING (registry); | |
1061 | registry = Fdowncase (registry); | |
1062 | } | |
1063 | return Fcons (family, registry); | |
1064 | } | |
1065 | ||
bad421f7 | 1066 | DEFUN ("set-fontset-font", Fset_fontset_font, Sset_fontset_font, 3, 4, 0, |
335c5470 PJ |
1067 | doc: /* Modify fontset NAME to use FONTNAME for CHARACTER. |
1068 | ||
0134e6da | 1069 | If NAME is nil, modify the default fontset. |
335c5470 PJ |
1070 | CHARACTER may be a cons; (FROM . TO), where FROM and TO are |
1071 | non-generic characters. In that case, use FONTNAME | |
1072 | for all characters in the range FROM and TO (inclusive). | |
f83d92b2 | 1073 | CHARACTER may be a charset. In that case, use FONTNAME |
335c5470 PJ |
1074 | for all character in the charsets. |
1075 | ||
1076 | FONTNAME may be a cons; (FAMILY . REGISTRY), where FAMILY is a family | |
fc8865fc | 1077 | name of a font, REGISTRY is a registry name of a font. */) |
335c5470 | 1078 | (name, character, fontname, frame) |
4ea5775b | 1079 | Lisp_Object name, character, fontname, frame; |
0d407d77 KH |
1080 | { |
1081 | Lisp_Object fontset, elt; | |
1082 | Lisp_Object realized; | |
1083 | int from, to; | |
1084 | int id; | |
1085 | ||
1086 | fontset = check_fontset_name (name); | |
1087 | ||
4ea5775b | 1088 | if (CONSP (character)) |
0d407d77 KH |
1089 | { |
1090 | /* CH should be (FROM . TO) where FROM and TO are non-generic | |
1091 | characters. */ | |
b7826503 PJ |
1092 | CHECK_NUMBER_CAR (character); |
1093 | CHECK_NUMBER_CDR (character); | |
4ea5775b KH |
1094 | from = XINT (XCAR (character)); |
1095 | to = XINT (XCDR (character)); | |
0d407d77 | 1096 | if (!char_valid_p (from, 0) || !char_valid_p (to, 0)) |
7c402969 | 1097 | error ("Character range should be by non-generic characters"); |
0d407d77 KH |
1098 | if (!NILP (name) |
1099 | && (SINGLE_BYTE_CHAR_P (from) || SINGLE_BYTE_CHAR_P (to))) | |
1100 | error ("Can't change font for a single byte character"); | |
1101 | } | |
0890801b KH |
1102 | else if (SYMBOLP (character)) |
1103 | { | |
1104 | elt = Fget (character, Qcharset); | |
1105 | if (!VECTORP (elt) || ASIZE (elt) < 1 || !NATNUMP (AREF (elt, 0))) | |
20cddf4e | 1106 | error ("Invalid charset: %s", SDATA (SYMBOL_NAME (character))); |
0890801b KH |
1107 | from = MAKE_CHAR (XINT (AREF (elt, 0)), 0, 0); |
1108 | to = from; | |
1109 | } | |
0d407d77 | 1110 | else |
4ed46869 | 1111 | { |
b7826503 | 1112 | CHECK_NUMBER (character); |
4ea5775b | 1113 | from = XINT (character); |
0d407d77 KH |
1114 | to = from; |
1115 | } | |
1116 | if (!char_valid_p (from, 1)) | |
1117 | invalid_character (from); | |
1118 | if (SINGLE_BYTE_CHAR_P (from)) | |
1119 | error ("Can't change font for a single byte character"); | |
1120 | if (from < to) | |
1121 | { | |
1122 | if (!char_valid_p (to, 1)) | |
1123 | invalid_character (to); | |
1124 | if (SINGLE_BYTE_CHAR_P (to)) | |
1125 | error ("Can't change font for a single byte character"); | |
1126 | } | |
4ed46869 | 1127 | |
0d407d77 KH |
1128 | /* The arg FRAME is kept for backward compatibility. We only check |
1129 | the validity. */ | |
1130 | if (!NILP (frame)) | |
b7826503 | 1131 | CHECK_LIVE_FRAME (frame); |
4ed46869 | 1132 | |
4ce2719d | 1133 | elt = Fcons (make_number (from), regularize_fontname (fontname)); |
0d407d77 KH |
1134 | for (; from <= to; from++) |
1135 | FONTSET_SET (fontset, from, elt); | |
1136 | Foptimize_char_table (fontset); | |
4ed46869 | 1137 | |
0d407d77 KH |
1138 | /* If there's a realized fontset REALIZED whose parent is FONTSET, |
1139 | clear all the elements of REALIZED and free all multibyte faces | |
1140 | whose fontset is REALIZED. This way, the specified character(s) | |
1141 | are surely redisplayed by a correct font. */ | |
1142 | for (id = 0; id < ASIZE (Vfontset_table); id++) | |
1143 | { | |
1144 | realized = AREF (Vfontset_table, id); | |
1145 | if (!NILP (realized) | |
1146 | && !BASE_FONTSET_P (realized) | |
1147 | && EQ (FONTSET_BASE (realized), fontset)) | |
4ed46869 | 1148 | { |
0d407d77 KH |
1149 | FRAME_PTR f = XFRAME (FONTSET_FRAME (realized)); |
1150 | clear_fontset_elements (realized); | |
1151 | free_realized_multibyte_face (f, id); | |
4ed46869 | 1152 | } |
0d407d77 | 1153 | } |
4ed46869 KH |
1154 | |
1155 | return Qnil; | |
1156 | } | |
1157 | ||
1158 | DEFUN ("font-info", Ffont_info, Sfont_info, 1, 2, 0, | |
335c5470 PJ |
1159 | doc: /* Return information about a font named NAME on frame FRAME. |
1160 | If FRAME is omitted or nil, use the selected frame. | |
1161 | The returned value is a vector of OPENED-NAME, FULL-NAME, CHARSET, SIZE, | |
1162 | HEIGHT, BASELINE-OFFSET, RELATIVE-COMPOSE, and DEFAULT-ASCENT, | |
1163 | where | |
1164 | OPENED-NAME is the name used for opening the font, | |
1165 | FULL-NAME is the full name of the font, | |
1166 | SIZE is the maximum bound width of the font, | |
1167 | HEIGHT is the height of the font, | |
1168 | BASELINE-OFFSET is the upward offset pixels from ASCII baseline, | |
1169 | RELATIVE-COMPOSE and DEFAULT-ASCENT are the numbers controlling | |
1170 | how to compose characters. | |
1171 | If the named font is not yet loaded, return nil. */) | |
1172 | (name, frame) | |
4ed46869 KH |
1173 | Lisp_Object name, frame; |
1174 | { | |
1175 | FRAME_PTR f; | |
1176 | struct font_info *fontp; | |
1177 | Lisp_Object info; | |
1178 | ||
1179 | (*check_window_system_func) (); | |
1180 | ||
b7826503 | 1181 | CHECK_STRING (name); |
0d407d77 | 1182 | name = Fdowncase (name); |
4ed46869 | 1183 | if (NILP (frame)) |
18f39d0e | 1184 | frame = selected_frame; |
b7826503 | 1185 | CHECK_LIVE_FRAME (frame); |
18f39d0e | 1186 | f = XFRAME (frame); |
4ed46869 KH |
1187 | |
1188 | if (!query_font_func) | |
1189 | error ("Font query function is not supported"); | |
1190 | ||
d5db4077 | 1191 | fontp = (*query_font_func) (f, SDATA (name)); |
4ed46869 KH |
1192 | if (!fontp) |
1193 | return Qnil; | |
1194 | ||
0d407d77 | 1195 | info = Fmake_vector (make_number (7), Qnil); |
4ed46869 KH |
1196 | |
1197 | XVECTOR (info)->contents[0] = build_string (fontp->name); | |
1198 | XVECTOR (info)->contents[1] = build_string (fontp->full_name); | |
0d407d77 KH |
1199 | XVECTOR (info)->contents[2] = make_number (fontp->size); |
1200 | XVECTOR (info)->contents[3] = make_number (fontp->height); | |
1201 | XVECTOR (info)->contents[4] = make_number (fontp->baseline_offset); | |
1202 | XVECTOR (info)->contents[5] = make_number (fontp->relative_compose); | |
1203 | XVECTOR (info)->contents[6] = make_number (fontp->default_ascent); | |
4ed46869 KH |
1204 | |
1205 | return info; | |
1206 | } | |
1207 | ||
1ff005e1 | 1208 | |
e5bc082b KH |
1209 | /* Return a cons (FONT-NAME . GLYPH-CODE). |
1210 | FONT-NAME is the font name for the character at POSITION in the current | |
1ff005e1 | 1211 | buffer. This is computed from all the text properties and overlays |
cf14fd6e KH |
1212 | that apply to POSITION. POSTION may be nil, in which case, |
1213 | FONT-NAME is the font name for display the character CH with the | |
1214 | default face. | |
1215 | ||
e5bc082b KH |
1216 | GLYPH-CODE is the glyph code in the font to use for the character. |
1217 | ||
1218 | If the 2nd optional arg CH is non-nil, it is a character to check | |
1219 | the font instead of the character at POSITION. | |
1220 | ||
1221 | It returns nil in the following cases: | |
1ff005e1 KH |
1222 | |
1223 | (1) The window system doesn't have a font for the character (thus | |
1224 | it is displayed by an empty box). | |
1225 | ||
1226 | (2) The character code is invalid. | |
1227 | ||
cf14fd6e KH |
1228 | (3) If POSITION is not nil, and the current buffer is not displayed |
1229 | in any window. | |
1ff005e1 KH |
1230 | |
1231 | In addition, the returned font name may not take into account of | |
1232 | such redisplay engine hooks as what used in jit-lock-mode if | |
1233 | POSITION is currently not visible. */ | |
1234 | ||
1235 | ||
e5bc082b | 1236 | DEFUN ("internal-char-font", Finternal_char_font, Sinternal_char_font, 1, 2, 0, |
335c5470 | 1237 | doc: /* For internal use only. */) |
e5bc082b KH |
1238 | (position, ch) |
1239 | Lisp_Object position, ch; | |
1ff005e1 KH |
1240 | { |
1241 | int pos, pos_byte, dummy; | |
1242 | int face_id; | |
e5bc082b | 1243 | int c, code; |
1ff005e1 KH |
1244 | struct frame *f; |
1245 | struct face *face; | |
1246 | ||
cf14fd6e | 1247 | if (NILP (position)) |
e5bc082b KH |
1248 | { |
1249 | CHECK_NATNUM (ch); | |
1250 | c = XINT (ch); | |
cf14fd6e KH |
1251 | f = XFRAME (selected_frame); |
1252 | face_id = DEFAULT_FACE_ID; | |
1253 | } | |
1254 | else | |
1255 | { | |
1256 | Lisp_Object window; | |
1257 | struct window *w; | |
1258 | ||
1259 | CHECK_NUMBER_COERCE_MARKER (position); | |
1260 | pos = XINT (position); | |
1261 | if (pos < BEGV || pos >= ZV) | |
1262 | args_out_of_range_3 (position, make_number (BEGV), make_number (ZV)); | |
1263 | pos_byte = CHAR_TO_BYTE (pos); | |
1264 | if (NILP (ch)) | |
1265 | c = FETCH_CHAR (pos_byte); | |
1266 | else | |
1267 | { | |
1268 | CHECK_NATNUM (ch); | |
1269 | c = XINT (ch); | |
1270 | } | |
1271 | window = Fget_buffer_window (Fcurrent_buffer (), Qnil); | |
1272 | if (NILP (window)) | |
1273 | return Qnil; | |
1274 | w = XWINDOW (window); | |
1275 | f = XFRAME (w->frame); | |
1276 | face_id = face_at_buffer_position (w, pos, -1, -1, &dummy, pos + 100, 0); | |
e5bc082b | 1277 | } |
1ff005e1 KH |
1278 | if (! CHAR_VALID_P (c, 0)) |
1279 | return Qnil; | |
1ff005e1 KH |
1280 | face_id = FACE_FOR_CHAR (f, FACE_FROM_ID (f, face_id), c); |
1281 | face = FACE_FROM_ID (f, face_id); | |
e5bc082b KH |
1282 | if (! face->font || ! face->font_name) |
1283 | return Qnil; | |
1284 | ||
1285 | { | |
1286 | struct font_info *fontp = (*get_font_info_func) (f, face->font_info_id); | |
1287 | XChar2b char2b; | |
1288 | int c1, c2, charset; | |
1289 | ||
1290 | SPLIT_CHAR (c, charset, c1, c2); | |
1291 | if (c2 > 0) | |
1292 | STORE_XCHAR2B (&char2b, c1, c2); | |
1293 | else | |
1294 | STORE_XCHAR2B (&char2b, 0, c1); | |
1295 | rif->encode_char (c, &char2b, fontp, NULL); | |
1296 | code = (XCHAR2B_BYTE1 (&char2b) << 8) | XCHAR2B_BYTE2 (&char2b); | |
1297 | } | |
1298 | return Fcons (build_string (face->font_name), make_number (code)); | |
1ff005e1 KH |
1299 | } |
1300 | ||
1301 | ||
e2b45cf9 KH |
1302 | /* Called from Ffontset_info via map_char_table on each leaf of |
1303 | fontset. ARG is a copy of the default fontset. The current leaf | |
1304 | is indexed by CHARACTER and has value ELT. This function override | |
1305 | the copy by ELT if ELT is not nil. */ | |
1306 | ||
1307 | static void | |
1308 | override_font_info (fontset, character, elt) | |
1309 | Lisp_Object fontset, character, elt; | |
1310 | { | |
1311 | if (! NILP (elt)) | |
1312 | Faset (fontset, character, elt); | |
1313 | } | |
1314 | ||
1ff005e1 KH |
1315 | /* Called from Ffontset_info via map_char_table on each leaf of |
1316 | fontset. ARG is a list (LAST FONT-INFO ...), where LAST is `(last | |
1317 | ARG)' and FONT-INFOs have this form: | |
1318 | (CHAR FONT-SPEC) or ((FROM . TO) FONT-SPEC) | |
1319 | The current leaf is indexed by CHARACTER and has value ELT. This | |
1320 | function add the information of the current leaf to ARG by | |
e2b45cf9 | 1321 | appending a new element or modifying the last element. */ |
1ff005e1 KH |
1322 | |
1323 | static void | |
1324 | accumulate_font_info (arg, character, elt) | |
1325 | Lisp_Object arg, character, elt; | |
1326 | { | |
1337ac77 | 1327 | Lisp_Object last, last_char, last_elt; |
1ff005e1 | 1328 | |
11d9bd93 KH |
1329 | if (!CONSP (elt) && !SINGLE_BYTE_CHAR_P (XINT (character))) |
1330 | elt = FONTSET_REF (Vdefault_fontset, XINT (character)); | |
1ff005e1 KH |
1331 | if (!CONSP (elt)) |
1332 | return; | |
1333 | last = XCAR (arg); | |
1334 | last_char = XCAR (XCAR (last)); | |
1335 | last_elt = XCAR (XCDR (XCAR (last))); | |
1336 | elt = XCDR (elt); | |
1337 | if (!NILP (Fequal (elt, last_elt))) | |
1338 | { | |
1339 | int this_charset = CHAR_CHARSET (XINT (character)); | |
1340 | ||
1341 | if (CONSP (last_char)) /* LAST_CHAR == (FROM . TO) */ | |
1342 | { | |
1343 | if (this_charset == CHAR_CHARSET (XINT (XCAR (last_char)))) | |
1344 | { | |
f3fbd155 | 1345 | XSETCDR (last_char, character); |
1ff005e1 KH |
1346 | return; |
1347 | } | |
1348 | } | |
11d9bd93 KH |
1349 | else if (XINT (last_char) == XINT (character)) |
1350 | return; | |
1351 | else if (this_charset == CHAR_CHARSET (XINT (last_char))) | |
1ff005e1 | 1352 | { |
f3fbd155 | 1353 | XSETCAR (XCAR (last), Fcons (last_char, character)); |
11d9bd93 | 1354 | return; |
1ff005e1 KH |
1355 | } |
1356 | } | |
f3fbd155 KR |
1357 | XSETCDR (last, Fcons (Fcons (character, Fcons (elt, Qnil)), Qnil)); |
1358 | XSETCAR (arg, XCDR (last)); | |
1ff005e1 KH |
1359 | } |
1360 | ||
1361 | ||
4ed46869 | 1362 | DEFUN ("fontset-info", Ffontset_info, Sfontset_info, 1, 2, 0, |
335c5470 | 1363 | doc: /* Return information about a fontset named NAME on frame FRAME. |
0134e6da | 1364 | If NAME is nil, return information about the default fontset. |
335c5470 PJ |
1365 | The value is a vector: |
1366 | [ SIZE HEIGHT ((CHARSET-OR-RANGE FONT-SPEC OPENED ...) ...) ], | |
1367 | where, | |
1368 | SIZE is the maximum bound width of ASCII font in the fontset, | |
1369 | HEIGHT is the maximum bound height of ASCII font in the fontset, | |
1370 | CHARSET-OR-RANGE is a charset, a character (may be a generic character) | |
1371 | or a cons of two characters specifying the range of characters. | |
1372 | FONT-SPEC is a fontname pattern string or a cons (FAMILY . REGISTRY), | |
1373 | where FAMILY is a `FAMILY' field of a XLFD font name, | |
fc8865fc PJ |
1374 | REGISTRY is a `CHARSET_REGISTRY' field of a XLFD font name. |
1375 | FAMILY may contain a `FOUNDRY' field at the head. | |
335c5470 PJ |
1376 | REGISTRY may contain a `CHARSET_ENCODING' field at the tail. |
1377 | OPENEDs are names of fonts actually opened. | |
1378 | If the ASCII font is not yet opened, SIZE and HEIGHT are 0. | |
1379 | If FRAME is omitted, it defaults to the currently selected frame. */) | |
1380 | (name, frame) | |
4ed46869 KH |
1381 | Lisp_Object name, frame; |
1382 | { | |
1ff005e1 | 1383 | Lisp_Object fontset; |
4ed46869 | 1384 | FRAME_PTR f; |
1ff005e1 KH |
1385 | Lisp_Object indices[3]; |
1386 | Lisp_Object val, tail, elt; | |
1387 | Lisp_Object *realized; | |
a921395d | 1388 | struct font_info *fontp = NULL; |
1ff005e1 | 1389 | int n_realized = 0; |
4ed46869 | 1390 | int i; |
fc8865fc | 1391 | |
4ed46869 KH |
1392 | (*check_window_system_func) (); |
1393 | ||
0d407d77 KH |
1394 | fontset = check_fontset_name (name); |
1395 | ||
4ed46869 | 1396 | if (NILP (frame)) |
18f39d0e | 1397 | frame = selected_frame; |
b7826503 | 1398 | CHECK_LIVE_FRAME (frame); |
18f39d0e | 1399 | f = XFRAME (frame); |
4ed46869 | 1400 | |
11d9bd93 | 1401 | /* Recode realized fontsets whose base is FONTSET in the table |
1ff005e1 KH |
1402 | `realized'. */ |
1403 | realized = (Lisp_Object *) alloca (sizeof (Lisp_Object) | |
1404 | * ASIZE (Vfontset_table)); | |
0d407d77 KH |
1405 | for (i = 0; i < ASIZE (Vfontset_table); i++) |
1406 | { | |
1ff005e1 KH |
1407 | elt = FONTSET_FROM_ID (i); |
1408 | if (!NILP (elt) | |
1409 | && EQ (FONTSET_BASE (elt), fontset)) | |
1410 | realized[n_realized++] = elt; | |
0d407d77 | 1411 | } |
4ed46869 | 1412 | |
e2b45cf9 KH |
1413 | if (! EQ (fontset, Vdefault_fontset)) |
1414 | { | |
1415 | /* Merge FONTSET onto the default fontset. */ | |
1416 | val = Fcopy_sequence (Vdefault_fontset); | |
6117a9cd | 1417 | map_char_table (override_font_info, Qnil, fontset, fontset, val, 0, indices); |
e2b45cf9 KH |
1418 | fontset = val; |
1419 | } | |
1420 | ||
1ff005e1 KH |
1421 | /* Accumulate information of the fontset in VAL. The format is |
1422 | (LAST FONT-INFO FONT-INFO ...), where FONT-INFO is (CHAR-OR-RANGE | |
1423 | FONT-SPEC). See the comment for accumulate_font_info for the | |
1424 | detail. */ | |
1425 | val = Fcons (Fcons (make_number (0), | |
1426 | Fcons (XCDR (FONTSET_ASCII (fontset)), Qnil)), | |
0d407d77 | 1427 | Qnil); |
1ff005e1 | 1428 | val = Fcons (val, val); |
6117a9cd | 1429 | map_char_table (accumulate_font_info, Qnil, fontset, fontset, val, 0, indices); |
1ff005e1 KH |
1430 | val = XCDR (val); |
1431 | ||
1432 | /* For each FONT-INFO, if CHAR_OR_RANGE (car part) is a generic | |
11d9bd93 | 1433 | character for a charset, replace it with the charset symbol. If |
1ff005e1 KH |
1434 | fonts are opened for FONT-SPEC, append the names of the fonts to |
1435 | FONT-SPEC. */ | |
1436 | for (tail = val; CONSP (tail); tail = XCDR (tail)) | |
0d407d77 | 1437 | { |
1ff005e1 KH |
1438 | int c; |
1439 | elt = XCAR (tail); | |
1440 | if (INTEGERP (XCAR (elt))) | |
0d407d77 | 1441 | { |
1ff005e1 KH |
1442 | int charset, c1, c2; |
1443 | c = XINT (XCAR (elt)); | |
1444 | SPLIT_CHAR (c, charset, c1, c2); | |
1445 | if (c1 == 0) | |
f3fbd155 | 1446 | XSETCAR (elt, CHARSET_SYMBOL (charset)); |
1ff005e1 KH |
1447 | } |
1448 | else | |
1449 | c = XINT (XCAR (XCAR (elt))); | |
1450 | for (i = 0; i < n_realized; i++) | |
1451 | { | |
1452 | Lisp_Object face_id, font; | |
0d407d77 KH |
1453 | struct face *face; |
1454 | ||
1ff005e1 KH |
1455 | face_id = FONTSET_REF_VIA_BASE (realized[i], c); |
1456 | if (INTEGERP (face_id)) | |
0d407d77 | 1457 | { |
1ff005e1 | 1458 | face = FACE_FROM_ID (f, XINT (face_id)); |
dbcf3c03 | 1459 | if (face && face->font && face->font_name) |
1ff005e1 KH |
1460 | { |
1461 | font = build_string (face->font_name); | |
1462 | if (NILP (Fmember (font, XCDR (XCDR (elt))))) | |
f3fbd155 | 1463 | XSETCDR (XCDR (elt), Fcons (font, XCDR (XCDR (elt)))); |
1ff005e1 | 1464 | } |
0d407d77 | 1465 | } |
0d407d77 KH |
1466 | } |
1467 | } | |
a921395d KH |
1468 | |
1469 | elt = Fcdr (Fcdr (Fassq (CHARSET_SYMBOL (CHARSET_ASCII), val))); | |
1470 | if (CONSP (elt)) | |
1471 | { | |
1472 | elt = XCAR (elt); | |
d5db4077 | 1473 | fontp = (*query_font_func) (f, SDATA (elt)); |
a921395d KH |
1474 | } |
1475 | val = Fmake_vector (make_number (3), val); | |
1476 | AREF (val, 0) = fontp ? make_number (fontp->size) : make_number (0); | |
1477 | AREF (val, 1) = fontp ? make_number (fontp->height) : make_number (0); | |
1478 | return val; | |
4ed46869 KH |
1479 | } |
1480 | ||
0d407d77 | 1481 | DEFUN ("fontset-font", Ffontset_font, Sfontset_font, 2, 2, 0, |
335c5470 | 1482 | doc: /* Return a font name pattern for character CH in fontset NAME. |
0134e6da | 1483 | If NAME is nil, find a font name pattern in the default fontset. */) |
335c5470 | 1484 | (name, ch) |
0d407d77 KH |
1485 | Lisp_Object name, ch; |
1486 | { | |
1337ac77 | 1487 | int c; |
0d407d77 KH |
1488 | Lisp_Object fontset, elt; |
1489 | ||
1490 | fontset = check_fontset_name (name); | |
1491 | ||
b7826503 | 1492 | CHECK_NUMBER (ch); |
0d407d77 KH |
1493 | c = XINT (ch); |
1494 | if (!char_valid_p (c, 1)) | |
1495 | invalid_character (c); | |
1496 | ||
1497 | elt = FONTSET_REF (fontset, c); | |
1498 | if (CONSP (elt)) | |
1499 | elt = XCDR (elt); | |
1500 | ||
1501 | return elt; | |
1502 | } | |
0d407d77 KH |
1503 | |
1504 | DEFUN ("fontset-list", Ffontset_list, Sfontset_list, 0, 0, 0, | |
335c5470 PJ |
1505 | doc: /* Return a list of all defined fontset names. */) |
1506 | () | |
0d407d77 KH |
1507 | { |
1508 | Lisp_Object fontset, list; | |
1509 | int i; | |
1510 | ||
1511 | list = Qnil; | |
1512 | for (i = 0; i < ASIZE (Vfontset_table); i++) | |
1513 | { | |
1514 | fontset = FONTSET_FROM_ID (i); | |
1515 | if (!NILP (fontset) | |
1516 | && BASE_FONTSET_P (fontset)) | |
1517 | list = Fcons (FONTSET_NAME (fontset), list); | |
1518 | } | |
1ff005e1 | 1519 | |
0d407d77 KH |
1520 | return list; |
1521 | } | |
1522 | ||
2f65c7b5 KH |
1523 | DEFUN ("set-overriding-fontspec-internal", Fset_overriding_fontspec_internal, |
1524 | Sset_overriding_fontspec_internal, 1, 1, 0, | |
1525 | doc: /* Internal use only. | |
1526 | ||
1527 | FONTLIST is an alist of TARGET vs FONTNAME, where TARGET is a charset | |
1528 | or a char-table, FONTNAME have the same meanings as in | |
1529 | `set-fontset-font'. | |
1530 | ||
1531 | It overrides the font specifications for each TARGET in the default | |
1532 | fontset by the corresponding FONTNAME. | |
1533 | ||
1534 | If TARGET is a charset, targets are all characters in the charset. If | |
1535 | TARGET is a char-table, targets are characters whose value is non-nil | |
1536 | in the table. | |
1537 | ||
1538 | It is intended that this function is called only from | |
1539 | `set-language-environment'. */) | |
1540 | (fontlist) | |
1541 | Lisp_Object fontlist; | |
1542 | { | |
1543 | Lisp_Object tail; | |
1544 | ||
1545 | fontlist = Fcopy_sequence (fontlist); | |
1546 | /* Now FONTLIST is ((TARGET . FONTNAME) ...). Reform it to ((TARGET | |
1547 | nil nil nil FONTSPEC) ...), where TARGET is a charset-id or a | |
1548 | char-table. */ | |
1549 | for (tail = fontlist; CONSP (tail); tail = XCDR (tail)) | |
1550 | { | |
1551 | Lisp_Object elt, target; | |
1552 | ||
1553 | elt = XCAR (tail); | |
1554 | target = Fcar (elt); | |
4ce2719d | 1555 | elt = Fcons (Qnil, regularize_fontname (Fcdr (elt))); |
2f65c7b5 KH |
1556 | if (! CHAR_TABLE_P (target)) |
1557 | { | |
1558 | int charset, c; | |
1559 | ||
1560 | CHECK_SYMBOL (target); | |
1561 | charset = get_charset_id (target); | |
1562 | if (charset < 0) | |
1563 | error ("Invalid charset %s", SDATA (SYMBOL_NAME (target))); | |
1564 | target = make_number (charset); | |
1565 | c = MAKE_CHAR (charset, 0, 0); | |
1566 | XSETCAR (elt, make_number (c)); | |
1567 | } | |
1568 | elt = Fcons (target, Fcons (Qnil, Fcons (Qnil, elt))); | |
1569 | XSETCAR (tail, elt); | |
1570 | } | |
1571 | Voverriding_fontspec_alist = fontlist; | |
1572 | clear_face_cache (0); | |
1573 | ++windows_or_buffers_changed; | |
1574 | return Qnil; | |
1575 | } | |
1576 | ||
dfcf069d | 1577 | void |
4ed46869 KH |
1578 | syms_of_fontset () |
1579 | { | |
4ed46869 KH |
1580 | if (!load_font_func) |
1581 | /* Window system initializer should have set proper functions. */ | |
1582 | abort (); | |
1583 | ||
6a7e6d80 | 1584 | Qfontset = intern ("fontset"); |
4ed46869 | 1585 | staticpro (&Qfontset); |
0d407d77 | 1586 | Fput (Qfontset, Qchar_table_extra_slots, make_number (3)); |
4ed46869 KH |
1587 | |
1588 | Vcached_fontset_data = Qnil; | |
1589 | staticpro (&Vcached_fontset_data); | |
1590 | ||
0d407d77 KH |
1591 | Vfontset_table = Fmake_vector (make_number (32), Qnil); |
1592 | staticpro (&Vfontset_table); | |
0d407d77 KH |
1593 | |
1594 | Vdefault_fontset = Fmake_char_table (Qfontset, Qnil); | |
1595 | staticpro (&Vdefault_fontset); | |
1ff005e1 KH |
1596 | FONTSET_ID (Vdefault_fontset) = make_number (0); |
1597 | FONTSET_NAME (Vdefault_fontset) | |
1598 | = build_string ("-*-*-*-*-*-*-*-*-*-*-*-*-fontset-default"); | |
e0f712ba | 1599 | #if defined (MAC_OS) |
1a578e9b AC |
1600 | FONTSET_ASCII (Vdefault_fontset) |
1601 | = Fcons (make_number (0), | |
f00691a3 | 1602 | build_string ("-apple-monaco-medium-r-*--*-120-*-*-*-*-mac-roman")); |
82d9a3b9 JR |
1603 | #elif defined (WINDOWSNT) |
1604 | FONTSET_ASCII (Vdefault_fontset) | |
1605 | = Fcons (make_number (0), | |
842c80a3 | 1606 | build_string ("-*-courier new-normal-r-*-*-*-100-*-*-*-*-iso8859-1")); |
1a578e9b | 1607 | #else |
0d407d77 | 1608 | FONTSET_ASCII (Vdefault_fontset) |
afc125e1 KH |
1609 | = Fcons (make_number (0), |
1610 | build_string ("-adobe-courier-medium-r-*-*-*-120-*-*-*-*-iso8859-1")); | |
1a578e9b | 1611 | #endif |
1ff005e1 KH |
1612 | AREF (Vfontset_table, 0) = Vdefault_fontset; |
1613 | next_fontset_id = 1; | |
4ed46869 | 1614 | |
2f65c7b5 KH |
1615 | Voverriding_fontspec_alist = Qnil; |
1616 | staticpro (&Voverriding_fontspec_alist); | |
1617 | ||
4ed46869 | 1618 | DEFVAR_LISP ("font-encoding-alist", &Vfont_encoding_alist, |
335c5470 PJ |
1619 | doc: /* Alist of fontname patterns vs corresponding encoding info. |
1620 | Each element looks like (REGEXP . ENCODING-INFO), | |
1621 | where ENCODING-INFO is an alist of CHARSET vs ENCODING. | |
1622 | ENCODING is one of the following integer values: | |
1623 | 0: code points 0x20..0x7F or 0x2020..0x7F7F are used, | |
1624 | 1: code points 0xA0..0xFF or 0xA0A0..0xFFFF are used, | |
1625 | 2: code points 0x20A0..0x7FFF are used, | |
1626 | 3: code points 0xA020..0xFF7F are used. */); | |
4ed46869 | 1627 | Vfont_encoding_alist = Qnil; |
77c49b4c KH |
1628 | Vfont_encoding_alist |
1629 | = Fcons (Fcons (build_string ("JISX0201"), | |
1630 | Fcons (Fcons (intern ("latin-jisx0201"), make_number (0)), | |
1631 | Qnil)), | |
1632 | Vfont_encoding_alist); | |
1633 | Vfont_encoding_alist | |
1634 | = Fcons (Fcons (build_string ("ISO8859-1"), | |
1635 | Fcons (Fcons (intern ("ascii"), make_number (0)), | |
1636 | Qnil)), | |
1637 | Vfont_encoding_alist); | |
4ed46869 | 1638 | |
6a7e6d80 | 1639 | DEFVAR_LISP ("use-default-ascent", &Vuse_default_ascent, |
335c5470 PJ |
1640 | doc: /* Char table of characters whose ascent values should be ignored. |
1641 | If an entry for a character is non-nil, the ascent value of the glyph | |
1642 | is assumed to be what specified by _MULE_DEFAULT_ASCENT property of a font. | |
1643 | ||
1644 | This affects how a composite character which contains | |
1645 | such a character is displayed on screen. */); | |
2aeafb78 KH |
1646 | Vuse_default_ascent = Qnil; |
1647 | ||
1648 | DEFVAR_LISP ("ignore-relative-composition", &Vignore_relative_composition, | |
335c5470 PJ |
1649 | doc: /* Char table of characters which is not composed relatively. |
1650 | If an entry for a character is non-nil, a composition sequence | |
1651 | which contains that character is displayed so that | |
1652 | the glyph of that character is put without considering | |
1653 | an ascent and descent value of a previous character. */); | |
810abb87 | 1654 | Vignore_relative_composition = Qnil; |
6a7e6d80 | 1655 | |
01d4b817 | 1656 | DEFVAR_LISP ("alternate-fontname-alist", &Valternate_fontname_alist, |
335c5470 PJ |
1657 | doc: /* Alist of fontname vs list of the alternate fontnames. |
1658 | When a specified font name is not found, the corresponding | |
1659 | alternate fontnames (if any) are tried instead. */); | |
01d4b817 | 1660 | Valternate_fontname_alist = Qnil; |
8c83e4f9 | 1661 | |
1c283e35 | 1662 | DEFVAR_LISP ("fontset-alias-alist", &Vfontset_alias_alist, |
335c5470 | 1663 | doc: /* Alist of fontset names vs the aliases. */); |
1ff005e1 KH |
1664 | Vfontset_alias_alist = Fcons (Fcons (FONTSET_NAME (Vdefault_fontset), |
1665 | build_string ("fontset-default")), | |
1666 | Qnil); | |
1c283e35 | 1667 | |
810abb87 KH |
1668 | DEFVAR_LISP ("vertical-centering-font-regexp", |
1669 | &Vvertical_centering_font_regexp, | |
335c5470 PJ |
1670 | doc: /* *Regexp matching font names that require vertical centering on display. |
1671 | When a character is displayed with such fonts, the character is displayed | |
fc8865fc | 1672 | at the vertical center of lines. */); |
810abb87 KH |
1673 | Vvertical_centering_font_regexp = Qnil; |
1674 | ||
4ed46869 KH |
1675 | defsubr (&Squery_fontset); |
1676 | defsubr (&Snew_fontset); | |
1677 | defsubr (&Sset_fontset_font); | |
1678 | defsubr (&Sfont_info); | |
1ff005e1 | 1679 | defsubr (&Sinternal_char_font); |
4ed46869 | 1680 | defsubr (&Sfontset_info); |
0d407d77 KH |
1681 | defsubr (&Sfontset_font); |
1682 | defsubr (&Sfontset_list); | |
2f65c7b5 | 1683 | defsubr (&Sset_overriding_fontspec_internal); |
4ed46869 | 1684 | } |
ab5796a9 MB |
1685 | |
1686 | /* arch-tag: ea861585-2f5f-4e5b-9849-d04a9c3a3537 | |
1687 | (do not change this comment) */ |