Commit | Line | Data |
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4ed46869 | 1 | /* Fontset handler. |
76b6f707 | 2 | Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 |
429ab54e | 3 | Free Software Foundation, Inc. |
7976eda0 | 4 | Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, |
76b6f707 | 5 | 2005, 2006, 2007, 2008, 2009 |
ce03bf76 KH |
6 | National Institute of Advanced Industrial Science and Technology (AIST) |
7 | Registration Number H14PRO021 | |
8aa07a8d | 8 | Copyright (C) 2003, 2006 |
06f76f0d KH |
9 | National Institute of Advanced Industrial Science and Technology (AIST) |
10 | Registration Number H13PRO009 | |
eb152aa9 | 11 | |
369314dc KH |
12 | This file is part of GNU Emacs. |
13 | ||
9ec0b715 | 14 | GNU Emacs is free software: you can redistribute it and/or modify |
369314dc | 15 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
16 | the Free Software Foundation, either version 3 of the License, or |
17 | (at your option) any later version. | |
4ed46869 | 18 | |
369314dc KH |
19 | GNU Emacs is distributed in the hope that it will be useful, |
20 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
21 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
22 | GNU General Public License for more details. | |
4ed46869 | 23 | |
369314dc | 24 | You should have received a copy of the GNU General Public License |
9ec0b715 | 25 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
4ed46869 | 26 | |
0d407d77 KH |
27 | /* #define FONTSET_DEBUG */ |
28 | ||
4ed46869 | 29 | #include <config.h> |
0d407d77 | 30 | #include <stdio.h> |
0d407d77 | 31 | |
4ed46869 | 32 | #include "lisp.h" |
06f76f0d | 33 | #include "blockinput.h" |
1ff005e1 | 34 | #include "buffer.h" |
06f76f0d | 35 | #include "character.h" |
4ed46869 KH |
36 | #include "charset.h" |
37 | #include "ccl.h" | |
2538fae4 | 38 | #include "keyboard.h" |
4ed46869 | 39 | #include "frame.h" |
0d407d77 | 40 | #include "dispextern.h" |
e1a14cdc | 41 | #include "intervals.h" |
3541bb8f | 42 | #include "fontset.h" |
0d407d77 | 43 | #include "window.h" |
92c15c34 KH |
44 | #ifdef HAVE_X_WINDOWS |
45 | #include "xterm.h" | |
46 | #endif | |
47 | #ifdef WINDOWSNT | |
48 | #include "w32term.h" | |
49 | #endif | |
edfda783 AR |
50 | #ifdef HAVE_NS |
51 | #include "nsterm.h" | |
52 | #endif | |
fa971ac3 | 53 | #include "termhooks.h" |
0d407d77 | 54 | |
8aa07a8d | 55 | #include "font.h" |
8aa07a8d | 56 | |
0d407d77 | 57 | #undef xassert |
8f924df7 | 58 | #ifdef FONTSET_DEBUG |
0d407d77 KH |
59 | #define xassert(X) do {if (!(X)) abort ();} while (0) |
60 | #undef INLINE | |
61 | #define INLINE | |
8f924df7 KH |
62 | #else /* not FONTSET_DEBUG */ |
63 | #define xassert(X) (void) 0 | |
64 | #endif /* not FONTSET_DEBUG */ | |
0d407d77 | 65 | |
a980c932 | 66 | EXFUN (Fclear_face_cache, 1); |
0d407d77 KH |
67 | |
68 | /* FONTSET | |
69 | ||
70 | A fontset is a collection of font related information to give | |
1d5d7200 KH |
71 | similar appearance (style, etc) of characters. A fontset has two |
72 | roles. One is to use for the frame parameter `font' as if it is an | |
73 | ASCII font. In that case, Emacs uses the font specified for | |
74 | `ascii' script for the frame's default font. | |
75 | ||
76 | Another role, the more important one, is to provide information | |
77 | about which font to use for each non-ASCII character. | |
78 | ||
79 | There are two kinds of fontsets; base and realized. A base fontset | |
80 | is created by `new-fontset' from Emacs Lisp explicitly. A realized | |
81 | fontset is created implicitly when a face is realized for ASCII | |
82 | characters. A face is also realized for non-ASCII characters based | |
83 | on an ASCII face. All of non-ASCII faces based on the same ASCII | |
84 | face share the same realized fontset. | |
8f924df7 | 85 | |
06f76f0d KH |
86 | A fontset object is implemented by a char-table whose default value |
87 | and parent are always nil. | |
fc8865fc | 88 | |
1d5d7200 KH |
89 | An element of a base fontset is a vector of FONT-DEFs which itself |
90 | is a vector [ FONT-SPEC ENCODING REPERTORY ]. | |
91 | ||
f088b054 KH |
92 | An element of a realized fontset is nil, t, 0, or a vector of this |
93 | form: | |
7e1a1cd9 | 94 | |
581f7ac7 KH |
95 | [ CHARSET-ORDERED-LIST-TICK PREFERRED-RFONT-DEF |
96 | RFONT-DEF0 RFONT-DEF1 ... ] | |
0d407d77 | 97 | |
7e1a1cd9 | 98 | RFONT-DEFn (i.e. Realized FONT-DEF) has this form: |
0d407d77 | 99 | |
581f7ac7 | 100 | [ FACE-ID FONT-DEF FONT-OBJECT SORTING-SCORE ] |
0d407d77 | 101 | |
581f7ac7 | 102 | RFONT-DEFn are automatically reordered by the current charset |
1d5d7200 | 103 | priority list. |
0d407d77 | 104 | |
7e1a1cd9 KH |
105 | The value nil means that we have not yet generated the above vector |
106 | from the base of the fontset. | |
0d407d77 | 107 | |
1d5d7200 KH |
108 | The value t means that no font is available for the corresponding |
109 | range of characters. | |
0d407d77 | 110 | |
f088b054 KH |
111 | The value 0 means that no font is available for the corresponding |
112 | range of characters in this fontset, but may be available in the | |
113 | default fontset. | |
114 | ||
0d407d77 | 115 | |
eb36588a | 116 | A fontset has 9 extra slots. |
0d407d77 | 117 | |
1d5d7200 | 118 | The 1st slot: the ID number of the fontset |
0d407d77 | 119 | |
1d5d7200 KH |
120 | The 2nd slot: |
121 | base: the name of the fontset | |
122 | realized: nil | |
0d407d77 | 123 | |
1d5d7200 | 124 | The 3rd slot: |
d6aaac9e | 125 | base: nil |
1d5d7200 | 126 | realized: the base fontset |
06f76f0d | 127 | |
1d5d7200 KH |
128 | The 4th slot: |
129 | base: nil | |
130 | realized: the frame that the fontset belongs to | |
0d407d77 | 131 | |
1d5d7200 KH |
132 | The 5th slot: |
133 | base: the font name for ASCII characters | |
134 | realized: nil | |
0d407d77 | 135 | |
1d5d7200 KH |
136 | The 6th slot: |
137 | base: nil | |
138 | realized: the ID number of a face to use for characters that | |
139 | has no font in a realized fontset. | |
0d407d77 | 140 | |
1d5d7200 KH |
141 | The 7th slot: |
142 | base: nil | |
143 | realized: Alist of font index vs the corresponding repertory | |
144 | char-table. | |
eb152aa9 | 145 | |
d6aaac9e KH |
146 | The 8th slot: |
147 | base: nil | |
148 | realized: If the base is not the default fontset, a fontset | |
149 | realized from the default fontset, else nil. | |
1d5d7200 | 150 | |
eb36588a | 151 | The 9th slot: |
cc7b6145 KH |
152 | base: Same as element value (but for fallback fonts). |
153 | realized: Likewise. | |
eb36588a | 154 | |
1d5d7200 | 155 | All fontsets are recorded in the vector Vfontset_table. |
0d407d77 KH |
156 | |
157 | ||
158 | DEFAULT FONTSET | |
159 | ||
1d5d7200 KH |
160 | There's a special base fontset named `default fontset' which |
161 | defines the default font specifications. When a base fontset | |
162 | doesn't specify a font for a specific character, the corresponding | |
163 | value in the default fontset is used. | |
0d407d77 | 164 | |
afe93d01 KH |
165 | The parent of a realized fontset created for such a face that has |
166 | no fontset is the default fontset. | |
0d407d77 KH |
167 | |
168 | ||
169 | These structures are hidden from the other codes than this file. | |
170 | The other codes handle fontsets only by their ID numbers. They | |
06f76f0d KH |
171 | usually use the variable name `fontset' for IDs. But, in this |
172 | file, we always use varialbe name `id' for IDs, and name `fontset' | |
1d5d7200 | 173 | for an actual fontset object, i.e., char-table. |
0d407d77 KH |
174 | |
175 | */ | |
176 | ||
177 | /********** VARIABLES and FUNCTION PROTOTYPES **********/ | |
178 | ||
179 | extern Lisp_Object Qfont; | |
d6aaac9e KH |
180 | static Lisp_Object Qfontset; |
181 | static Lisp_Object Qfontset_info; | |
1d5d7200 | 182 | static Lisp_Object Qprepend, Qappend; |
c3fb88cc | 183 | static Lisp_Object Qlatin; |
0d407d77 KH |
184 | |
185 | /* Vector containing all fontsets. */ | |
186 | static Lisp_Object Vfontset_table; | |
187 | ||
fc8865fc | 188 | /* Next possibly free fontset ID. Usually this keeps the minimum |
0d407d77 KH |
189 | fontset ID not yet used. */ |
190 | static int next_fontset_id; | |
191 | ||
192 | /* The default fontset. This gives default FAMILY and REGISTRY of | |
06f76f0d | 193 | font for each character. */ |
0d407d77 | 194 | static Lisp_Object Vdefault_fontset; |
4ed46869 | 195 | |
28e2436a | 196 | Lisp_Object Vfont_encoding_charset_alist; |
6a7e6d80 | 197 | Lisp_Object Vuse_default_ascent; |
2aeafb78 | 198 | Lisp_Object Vignore_relative_composition; |
01d4b817 | 199 | Lisp_Object Valternate_fontname_alist; |
1c283e35 | 200 | Lisp_Object Vfontset_alias_alist; |
810abb87 | 201 | Lisp_Object Vvertical_centering_font_regexp; |
21ff5ed6 | 202 | Lisp_Object Votf_script_alist; |
4ed46869 | 203 | |
4ed46869 | 204 | /* Check if any window system is used now. */ |
5771dcf4 | 205 | void (*check_window_system_func) P_ ((void)); |
4ed46869 | 206 | |
0d407d77 KH |
207 | |
208 | /* Prototype declarations for static functions. */ | |
b11a4ed7 DL |
209 | static Lisp_Object fontset_add P_ ((Lisp_Object, Lisp_Object, Lisp_Object, |
210 | Lisp_Object)); | |
581f7ac7 KH |
211 | static Lisp_Object fontset_find_font P_ ((Lisp_Object, int, struct face *, |
212 | int, int)); | |
41ad6003 | 213 | static void reorder_font_vector P_ ((Lisp_Object, struct font *)); |
7e1a1cd9 | 214 | static Lisp_Object fontset_font P_ ((Lisp_Object, int, struct face *, int)); |
0d407d77 | 215 | static Lisp_Object make_fontset P_ ((Lisp_Object, Lisp_Object, Lisp_Object)); |
0d407d77 | 216 | static Lisp_Object fontset_pattern_regexp P_ ((Lisp_Object)); |
1d5d7200 KH |
217 | static void accumulate_script_ranges P_ ((Lisp_Object, Lisp_Object, |
218 | Lisp_Object)); | |
8aa07a8d | 219 | Lisp_Object find_font_encoding P_ ((Lisp_Object)); |
0d407d77 | 220 | |
2449d4d0 KH |
221 | static void set_fontset_font P_ ((Lisp_Object, Lisp_Object)); |
222 | ||
556383ac KH |
223 | #ifdef FONTSET_DEBUG |
224 | ||
225 | /* Return 1 if ID is a valid fontset id, else return 0. */ | |
226 | ||
227 | static int | |
228 | fontset_id_valid_p (id) | |
229 | int id; | |
230 | { | |
231 | return (id >= 0 && id < ASIZE (Vfontset_table) - 1); | |
232 | } | |
233 | ||
234 | #endif | |
235 | ||
0d407d77 KH |
236 | |
237 | \f | |
238 | /********** MACROS AND FUNCTIONS TO HANDLE FONTSET **********/ | |
239 | ||
0d407d77 KH |
240 | /* Return the fontset with ID. No check of ID's validness. */ |
241 | #define FONTSET_FROM_ID(id) AREF (Vfontset_table, id) | |
242 | ||
afe93d01 | 243 | /* Macros to access special values of FONTSET. */ |
0d407d77 | 244 | #define FONTSET_ID(fontset) XCHAR_TABLE (fontset)->extras[0] |
06f76f0d KH |
245 | |
246 | /* Macros to access special values of (base) FONTSET. */ | |
0d407d77 | 247 | #define FONTSET_NAME(fontset) XCHAR_TABLE (fontset)->extras[1] |
06f76f0d | 248 | #define FONTSET_ASCII(fontset) XCHAR_TABLE (fontset)->extras[4] |
581f7ac7 | 249 | #define FONTSET_SPEC(fontset) XCHAR_TABLE (fontset)->extras[5] |
06f76f0d | 250 | |
06f76f0d KH |
251 | /* Macros to access special values of (realized) FONTSET. */ |
252 | #define FONTSET_BASE(fontset) XCHAR_TABLE (fontset)->extras[2] | |
253 | #define FONTSET_FRAME(fontset) XCHAR_TABLE (fontset)->extras[3] | |
9459b1e9 | 254 | #define FONTSET_OBJLIST(fontset) XCHAR_TABLE (fontset)->extras[4] |
1d5d7200 KH |
255 | #define FONTSET_NOFONT_FACE(fontset) XCHAR_TABLE (fontset)->extras[5] |
256 | #define FONTSET_REPERTORY(fontset) XCHAR_TABLE (fontset)->extras[6] | |
eb36588a KH |
257 | #define FONTSET_DEFAULT(fontset) XCHAR_TABLE (fontset)->extras[7] |
258 | ||
cc7b6145 | 259 | /* For both base and realized fontset. */ |
eb36588a | 260 | #define FONTSET_FALLBACK(fontset) XCHAR_TABLE (fontset)->extras[8] |
0d407d77 | 261 | |
e3400864 | 262 | #define BASE_FONTSET_P(fontset) (NILP (FONTSET_BASE (fontset))) |
0d407d77 KH |
263 | |
264 | ||
581f7ac7 KH |
265 | /* Macros for FONT-DEF and RFONT-DEF of fontset. */ |
266 | #define FONT_DEF_NEW(font_def, font_spec, encoding, repertory) \ | |
267 | do { \ | |
268 | (font_def) = Fmake_vector (make_number (3), (font_spec)); \ | |
269 | ASET ((font_def), 1, encoding); \ | |
270 | ASET ((font_def), 2, repertory); \ | |
271 | } while (0) | |
272 | ||
273 | #define FONT_DEF_SPEC(font_def) AREF (font_def, 0) | |
274 | #define FONT_DEF_ENCODING(font_def) AREF (font_def, 1) | |
275 | #define FONT_DEF_REPERTORY(font_def) AREF (font_def, 2) | |
276 | ||
277 | #define RFONT_DEF_FACE(rfont_def) AREF (rfont_def, 0) | |
278 | #define RFONT_DEF_SET_FACE(rfont_def, face_id) \ | |
279 | ASET ((rfont_def), 0, make_number (face_id)) | |
280 | #define RFONT_DEF_FONT_DEF(rfont_def) AREF (rfont_def, 1) | |
281 | #define RFONT_DEF_SPEC(rfont_def) FONT_DEF_SPEC (AREF (rfont_def, 1)) | |
282 | #define RFONT_DEF_REPERTORY(rfont_def) FONT_DEF_REPERTORY (AREF (rfont_def, 1)) | |
283 | #define RFONT_DEF_OBJECT(rfont_def) AREF (rfont_def, 2) | |
284 | #define RFONT_DEF_SET_OBJECT(rfont_def, object) \ | |
285 | ASET ((rfont_def), 2, (object)) | |
286 | #define RFONT_DEF_SCORE(rfont_def) XINT (AREF (rfont_def, 3)) | |
287 | #define RFONT_DEF_SET_SCORE(rfont_def, score) \ | |
288 | ASET ((rfont_def), 3, make_number (score)) | |
289 | #define RFONT_DEF_NEW(rfont_def, font_def) \ | |
290 | do { \ | |
291 | (rfont_def) = Fmake_vector (make_number (4), Qnil); \ | |
292 | ASET ((rfont_def), 1, (font_def)); \ | |
293 | RFONT_DEF_SET_SCORE ((rfont_def), 0); \ | |
294 | } while (0) | |
295 | ||
296 | ||
1d5d7200 KH |
297 | /* Return the element of FONTSET for the character C. If FONTSET is a |
298 | base fontset other then the default fontset and FONTSET doesn't | |
299 | contain information for C, return the information in the default | |
300 | fontset. */ | |
0d407d77 | 301 | |
1d5d7200 KH |
302 | #define FONTSET_REF(fontset, c) \ |
303 | (EQ (fontset, Vdefault_fontset) \ | |
304 | ? CHAR_TABLE_REF (fontset, c) \ | |
305 | : fontset_ref ((fontset), (c))) | |
0d407d77 | 306 | |
afe93d01 | 307 | static Lisp_Object |
0d407d77 KH |
308 | fontset_ref (fontset, c) |
309 | Lisp_Object fontset; | |
310 | int c; | |
311 | { | |
06f76f0d KH |
312 | Lisp_Object elt; |
313 | ||
1d5d7200 KH |
314 | elt = CHAR_TABLE_REF (fontset, c); |
315 | if (NILP (elt) && ! EQ (fontset, Vdefault_fontset) | |
316 | /* Don't check Vdefault_fontset for a realized fontset. */ | |
317 | && NILP (FONTSET_BASE (fontset))) | |
318 | elt = CHAR_TABLE_REF (Vdefault_fontset, c); | |
0d407d77 KH |
319 | return elt; |
320 | } | |
321 | ||
1d5d7200 KH |
322 | /* Set elements of FONTSET for characters in RANGE to the value ELT. |
323 | RANGE is a cons (FROM . TO), where FROM and TO are character codes | |
324 | specifying a range. */ | |
325 | ||
326 | #define FONTSET_SET(fontset, range, elt) \ | |
327 | Fset_char_table_range ((fontset), (range), (elt)) | |
328 | ||
0d407d77 | 329 | |
1d5d7200 | 330 | /* Modify the elements of FONTSET for characters in RANGE by replacing |
6bad8007 | 331 | with ELT or adding ELT. RANGE is a cons (FROM . TO), where FROM |
1d5d7200 KH |
332 | and TO are character codes specifying a range. If ADD is nil, |
333 | replace with ELT, if ADD is `prepend', prepend ELT, otherwise, | |
334 | append ELT. */ | |
335 | ||
cc7b6145 KH |
336 | #define FONTSET_ADD(fontset, range, elt, add) \ |
337 | (NILP (add) \ | |
338 | ? (NILP (range) \ | |
339 | ? (FONTSET_FALLBACK (fontset) = Fmake_vector (make_number (1), (elt))) \ | |
340 | : Fset_char_table_range ((fontset), (range), \ | |
341 | Fmake_vector (make_number (1), (elt)))) \ | |
1d5d7200 | 342 | : fontset_add ((fontset), (range), (elt), (add))) |
0d407d77 | 343 | |
b11a4ed7 | 344 | static Lisp_Object |
1d5d7200 | 345 | fontset_add (fontset, range, elt, add) |
00c4da0f | 346 | Lisp_Object fontset, range, elt, add; |
06f76f0d | 347 | { |
eb36588a KH |
348 | Lisp_Object args[2]; |
349 | int idx = (EQ (add, Qappend) ? 0 : 1); | |
350 | ||
351 | args[1 - idx] = Fmake_vector (make_number (1), elt); | |
352 | ||
353 | if (CONSP (range)) | |
354 | { | |
355 | int from = XINT (XCAR (range)); | |
356 | int to = XINT (XCDR (range)); | |
357 | int from1, to1; | |
358 | ||
359 | do { | |
5b30be1a | 360 | from1 = from, to1 = to; |
eb36588a | 361 | args[idx] = char_table_ref_and_range (fontset, from, &from1, &to1); |
eb36588a KH |
362 | char_table_set_range (fontset, from, to1, |
363 | NILP (args[idx]) ? args[1 - idx] | |
364 | : Fvconcat (2, args)); | |
365 | from = to1 + 1; | |
366 | } while (from < to); | |
367 | } | |
368 | else | |
369 | { | |
370 | args[idx] = FONTSET_FALLBACK (fontset); | |
371 | FONTSET_FALLBACK (fontset) | |
372 | = NILP (args[idx]) ? args[1 - idx] : Fvconcat (2, args); | |
373 | } | |
b11a4ed7 | 374 | return Qnil; |
1d5d7200 KH |
375 | } |
376 | ||
581f7ac7 KH |
377 | static int |
378 | fontset_compare_rfontdef (val1, val2) | |
379 | const void *val1, *val2; | |
380 | { | |
41ad6003 KH |
381 | return (RFONT_DEF_SCORE (*(Lisp_Object *) val1) |
382 | - RFONT_DEF_SCORE (*(Lisp_Object *) val2)); | |
581f7ac7 | 383 | } |
1d5d7200 | 384 | |
ea0162a6 | 385 | /* Update FONT-GROUP which has this form: |
581f7ac7 KH |
386 | [ CHARSET-ORDERED-LIST-TICK PREFERRED-RFONT-DEF |
387 | RFONT-DEF0 RFONT-DEF1 ... ] | |
20746fe4 | 388 | Reorder RFONT-DEFs according to the current language, and update |
581f7ac7 KH |
389 | CHARSET-ORDERED-LIST-TICK. |
390 | ||
391 | If PREFERRED_FAMILY is not nil, that family has the higher priority | |
392 | if the encoding charsets or languages in font-specs are the same. */ | |
393 | ||
394 | extern Lisp_Object Fassoc_string (); | |
0d407d77 KH |
395 | |
396 | static void | |
41ad6003 | 397 | reorder_font_vector (font_group, font) |
ea0162a6 | 398 | Lisp_Object font_group; |
41ad6003 | 399 | struct font *font; |
1d5d7200 | 400 | { |
41ad6003 | 401 | Lisp_Object vec, font_object; |
1d5d7200 | 402 | int size; |
581f7ac7 KH |
403 | int i; |
404 | int score_changed = 0; | |
1d5d7200 | 405 | |
41ad6003 KH |
406 | if (font) |
407 | XSETFONT (font_object, font); | |
408 | else | |
409 | font_object = Qnil; | |
410 | ||
411 | vec = XCDR (font_group); | |
412 | size = ASIZE (vec); | |
413 | /* Exclude the tailing nil element from the reordering. */ | |
414 | if (NILP (AREF (vec, size - 1))) | |
415 | size--; | |
581f7ac7 KH |
416 | |
417 | for (i = 0; i < size; i++) | |
6bad8007 | 418 | { |
41ad6003 | 419 | Lisp_Object rfont_def = AREF (vec, i); |
581f7ac7 KH |
420 | Lisp_Object font_def = RFONT_DEF_FONT_DEF (rfont_def); |
421 | Lisp_Object font_spec = FONT_DEF_SPEC (font_def); | |
41ad6003 | 422 | int score = RFONT_DEF_SCORE (rfont_def) & 0xFF; |
581f7ac7 | 423 | |
41ad6003 | 424 | if (! font_match_p (font_spec, font_object)) |
eb152aa9 | 425 | { |
cd872f08 | 426 | Lisp_Object encoding = FONT_DEF_ENCODING (font_def); |
581f7ac7 | 427 | |
cd872f08 | 428 | if (! NILP (encoding)) |
41ad6003 KH |
429 | { |
430 | Lisp_Object tail; | |
581f7ac7 | 431 | |
41ad6003 KH |
432 | for (tail = Vcharset_ordered_list; |
433 | ! EQ (tail, Vcharset_non_preferred_head) && CONSP (tail); | |
434 | score += 0x100, tail = XCDR (tail)) | |
cd872f08 | 435 | if (EQ (encoding, XCAR (tail))) |
41ad6003 KH |
436 | break; |
437 | } | |
438 | else | |
439 | { | |
440 | Lisp_Object lang = Ffont_get (font_spec, QClang); | |
441 | ||
442 | if (! NILP (lang) | |
443 | && ! EQ (lang, Vcurrent_iso639_language) | |
444 | && (! CONSP (Vcurrent_iso639_language) | |
445 | || NILP (Fmemq (lang, Vcurrent_iso639_language)))) | |
446 | score |= 0x100; | |
447 | } | |
ea0162a6 | 448 | } |
581f7ac7 | 449 | if (RFONT_DEF_SCORE (rfont_def) != score) |
ea0162a6 | 450 | { |
581f7ac7 KH |
451 | RFONT_DEF_SET_SCORE (rfont_def, score); |
452 | score_changed = 1; | |
ea0162a6 | 453 | } |
6bad8007 | 454 | } |
1d5d7200 | 455 | |
581f7ac7 | 456 | if (score_changed) |
41ad6003 | 457 | qsort (XVECTOR (vec)->contents, size, sizeof (Lisp_Object), |
581f7ac7 | 458 | fontset_compare_rfontdef); |
41ad6003 KH |
459 | XSETCAR (font_group, make_number (charset_ordered_list_tick)); |
460 | } | |
461 | ||
462 | static Lisp_Object | |
3cba9369 | 463 | fontset_get_font_group (Lisp_Object fontset, int c) |
41ad6003 KH |
464 | { |
465 | Lisp_Object font_group; | |
466 | Lisp_Object base_fontset; | |
5b30be1a | 467 | int from = 0, to = MAX_CHAR, i; |
28e2436a | 468 | |
41ad6003 KH |
469 | xassert (! BASE_FONTSET_P (fontset)); |
470 | if (c >= 0) | |
471 | font_group = CHAR_TABLE_REF (fontset, c); | |
472 | else | |
473 | font_group = FONTSET_FALLBACK (fontset); | |
474 | if (! NILP (font_group)) | |
475 | return font_group; | |
476 | base_fontset = FONTSET_BASE (fontset); | |
477 | if (c >= 0) | |
478 | font_group = char_table_ref_and_range (base_fontset, c, &from, &to); | |
479 | else | |
480 | font_group = FONTSET_FALLBACK (base_fontset); | |
481 | if (NILP (font_group)) | |
f088b054 KH |
482 | { |
483 | if (c >= 0) | |
484 | char_table_set_range (fontset, from, to, make_number (0)); | |
485 | return Qnil; | |
486 | } | |
41ad6003 KH |
487 | font_group = Fcopy_sequence (font_group); |
488 | for (i = 0; i < ASIZE (font_group); i++) | |
489 | if (! NILP (AREF (font_group, i))) | |
490 | { | |
491 | Lisp_Object rfont_def; | |
492 | ||
493 | RFONT_DEF_NEW (rfont_def, AREF (font_group, i)); | |
494 | /* Remember the original order. */ | |
495 | RFONT_DEF_SET_SCORE (rfont_def, i); | |
496 | ASET (font_group, i, rfont_def); | |
497 | } | |
498 | font_group = Fcons (make_number (-1), font_group); | |
499 | if (c >= 0) | |
500 | char_table_set_range (fontset, from, to, font_group); | |
501 | else | |
502 | FONTSET_FALLBACK (fontset) = font_group; | |
503 | return font_group; | |
0d407d77 KH |
504 | } |
505 | ||
7e1a1cd9 | 506 | /* Return RFONT-DEF (vector) in the realized fontset FONTSET for the |
d67f7f1a KH |
507 | character C. If no font is found, return Qnil if there's a |
508 | possibility that the default fontset or the fallback font groups | |
509 | have a proper font, and return Qt if not. | |
510 | ||
511 | If a font is found but is not yet opened, open it (if FACE is not | |
512 | NULL) or return Qnil (if FACE is NULL). | |
513 | ||
1c82b4b3 KH |
514 | ID is a charset-id that must be preferred, or -1 meaning no |
515 | preference. | |
d67f7f1a | 516 | |
ea0162a6 | 517 | If FALLBACK is nonzero, search only fallback fonts. */ |
0d407d77 | 518 | |
7e1a1cd9 | 519 | static Lisp_Object |
1c82b4b3 | 520 | fontset_find_font (fontset, c, face, id, fallback) |
0d407d77 KH |
521 | Lisp_Object fontset; |
522 | int c; | |
1d5d7200 | 523 | struct face *face; |
1c82b4b3 | 524 | int id, fallback; |
0d407d77 | 525 | { |
162f5458 | 526 | Lisp_Object vec, font_group; |
f3d29551 CY |
527 | int i, charset_matched = -1; |
528 | FRAME_PTR f = (FRAMEP (FONTSET_FRAME (fontset))) | |
529 | ? XFRAME (selected_frame) : XFRAME (FONTSET_FRAME (fontset)); | |
0d407d77 | 530 | |
41ad6003 KH |
531 | font_group = fontset_get_font_group (fontset, fallback ? -1 : c); |
532 | if (! CONSP (font_group)) | |
bf86d09c | 533 | return font_group; |
41ad6003 KH |
534 | vec = XCDR (font_group); |
535 | if (ASIZE (vec) == 0) | |
536 | return Qnil; | |
eaa0402c | 537 | |
41ad6003 | 538 | if (ASIZE (vec) > 1) |
1d5d7200 | 539 | { |
41ad6003 KH |
540 | if (XINT (XCAR (font_group)) != charset_ordered_list_tick) |
541 | /* We have just created the font-group, | |
542 | or the charset priorities were changed. */ | |
543 | reorder_font_vector (font_group, face->ascii_face->font); | |
544 | if (id >= 0) | |
545 | /* Find a spec matching with the charset ID to try at | |
546 | first. */ | |
547 | for (i = 0; i < ASIZE (vec); i++) | |
548 | { | |
549 | Lisp_Object rfont_def = AREF (vec, i); | |
550 | Lisp_Object repertory | |
551 | = FONT_DEF_REPERTORY (RFONT_DEF_FONT_DEF (rfont_def)); | |
552 | ||
553 | if (XINT (repertory) == id) | |
eaa0402c | 554 | { |
41ad6003 | 555 | charset_matched = i; |
581f7ac7 | 556 | break; |
41ad6003 KH |
557 | } |
558 | } | |
581f7ac7 | 559 | } |
1d5d7200 | 560 | |
7e1a1cd9 | 561 | /* Find the first available font in the vector of RFONT-DEF. */ |
41ad6003 | 562 | for (i = 0; i < ASIZE (vec); i++) |
0d407d77 | 563 | { |
162f5458 | 564 | Lisp_Object rfont_def, font_def; |
dbf46ba6 | 565 | Lisp_Object font_entity, font_object; |
581f7ac7 | 566 | |
41ad6003 KH |
567 | if (i == 0 && charset_matched >= 0) |
568 | { | |
569 | /* Try the element matching with the charset ID at first. */ | |
162f5458 | 570 | rfont_def = AREF (vec, charset_matched); |
41ad6003 KH |
571 | charset_matched = -1; |
572 | i--; | |
573 | } | |
574 | else if (i != charset_matched) | |
162f5458 | 575 | rfont_def = AREF (vec, i); |
41ad6003 KH |
576 | else |
577 | continue; | |
578 | ||
162f5458 | 579 | if (NILP (rfont_def)) |
41ad6003 | 580 | /* This is a sign of not to try the other fonts. */ |
eaa0402c | 581 | return Qt; |
162f5458 KH |
582 | if (INTEGERP (RFONT_DEF_FACE (rfont_def)) |
583 | && XINT (RFONT_DEF_FACE (rfont_def)) < 0) | |
1d5d7200 KH |
584 | /* We couldn't open this font last time. */ |
585 | continue; | |
586 | ||
162f5458 | 587 | font_object = RFONT_DEF_OBJECT (rfont_def); |
581f7ac7 | 588 | if (NILP (font_object)) |
8aa07a8d | 589 | { |
162f5458 | 590 | font_def = RFONT_DEF_FONT_DEF (rfont_def); |
d67f7f1a | 591 | |
581f7ac7 KH |
592 | if (! face) |
593 | /* We have not yet opened the font. */ | |
594 | return Qnil; | |
162f5458 KH |
595 | /* Find a font best-matching with the spec without checking |
596 | the support of the character C. That checking is costly, | |
597 | and even without the checking, the found font supports C | |
598 | in high possibility. */ | |
581f7ac7 KH |
599 | font_entity = font_find_for_lface (f, face->lface, |
600 | FONT_DEF_SPEC (font_def), -1); | |
d67f7f1a | 601 | if (NILP (font_entity)) |
8b67c40a | 602 | { |
581f7ac7 | 603 | /* Record that no font matches the spec. */ |
162f5458 | 604 | RFONT_DEF_SET_FACE (rfont_def, -1); |
581f7ac7 | 605 | continue; |
d67f7f1a | 606 | } |
ca2b2cde KH |
607 | font_object = font_open_for_lface (f, font_entity, face->lface, |
608 | FONT_DEF_SPEC (font_def)); | |
581f7ac7 | 609 | if (NILP (font_object)) |
d67f7f1a | 610 | { |
162f5458 KH |
611 | /* Something strange happened, perhaps because of a |
612 | Font-backend problem. Too avoid crashing, record | |
613 | that this spec is unsable. It may be better to find | |
614 | another font of the same spec, but currently we don't | |
615 | have such an API. */ | |
616 | RFONT_DEF_SET_FACE (rfont_def, -1); | |
581f7ac7 | 617 | continue; |
8aa07a8d | 618 | } |
162f5458 | 619 | RFONT_DEF_SET_OBJECT (rfont_def, font_object); |
8aa07a8d | 620 | } |
eb152aa9 | 621 | |
581f7ac7 | 622 | if (font_has_char (f, font_object, c)) |
162f5458 | 623 | return rfont_def; |
581f7ac7 | 624 | |
162f5458 KH |
625 | /* Find a font already opened, maching with the current spec, |
626 | and supporting C. */ | |
627 | font_def = RFONT_DEF_FONT_DEF (rfont_def); | |
581f7ac7 | 628 | for (i++; i < ASIZE (vec); i++) |
57e13af9 | 629 | { |
162f5458 KH |
630 | rfont_def = AREF (vec, i); |
631 | if (! EQ (RFONT_DEF_FONT_DEF (rfont_def), font_def)) | |
581f7ac7 | 632 | break; |
162f5458 | 633 | font_object = RFONT_DEF_OBJECT (AREF (vec, i)); |
69a8e484 | 634 | if (! NILP (font_object) && font_has_char (f, font_object, c)) |
162f5458 | 635 | return rfont_def; |
57e13af9 | 636 | } |
162f5458 KH |
637 | |
638 | /* Find a font-entity with the current spec and supporting C. */ | |
581f7ac7 KH |
639 | font_entity = font_find_for_lface (f, face->lface, |
640 | FONT_DEF_SPEC (font_def), c); | |
641 | if (! NILP (font_entity)) | |
1d5d7200 | 642 | { |
162f5458 KH |
643 | /* We found a font. Open it and insert a new element for |
644 | that font in VEC. */ | |
645 | Lisp_Object new_vec; | |
581f7ac7 | 646 | int j; |
1d5d7200 | 647 | |
581f7ac7 KH |
648 | font_object = font_open_for_lface (f, font_entity, face->lface, |
649 | Qnil); | |
162f5458 KH |
650 | if (NILP (font_object)) |
651 | continue; | |
581f7ac7 KH |
652 | RFONT_DEF_NEW (rfont_def, font_def); |
653 | RFONT_DEF_SET_OBJECT (rfont_def, font_object); | |
162f5458 | 654 | RFONT_DEF_SET_SCORE (rfont_def, RFONT_DEF_SCORE (rfont_def)); |
581f7ac7 KH |
655 | new_vec = Fmake_vector (make_number (ASIZE (vec) + 1), Qnil); |
656 | for (j = 0; j < i; j++) | |
657 | ASET (new_vec, j, AREF (vec, j)); | |
658 | ASET (new_vec, j, rfont_def); | |
659 | for (j++; j < ASIZE (new_vec); j++) | |
660 | ASET (new_vec, j, AREF (vec, j - 1)); | |
162f5458 | 661 | XSETCDR (font_group, new_vec); |
581f7ac7 | 662 | return rfont_def; |
1d5d7200 | 663 | } |
162f5458 KH |
664 | |
665 | /* No font of the current spec for C. Try the next spec. */ | |
581f7ac7 | 666 | i--; |
0d407d77 | 667 | } |
d67f7f1a | 668 | |
581f7ac7 | 669 | FONTSET_SET (fontset, make_number (c), make_number (0)); |
eaa0402c | 670 | return Qnil; |
1c82b4b3 | 671 | } |
0d407d77 | 672 | |
cc7b6145 | 673 | |
1c82b4b3 KH |
674 | static Lisp_Object |
675 | fontset_font (fontset, c, face, id) | |
676 | Lisp_Object fontset; | |
677 | int c; | |
678 | struct face *face; | |
679 | int id; | |
680 | { | |
681 | Lisp_Object rfont_def; | |
682 | Lisp_Object base_fontset; | |
cc7b6145 | 683 | |
41ad6003 | 684 | /* Try a font-group of FONTSET. */ |
1c82b4b3 | 685 | rfont_def = fontset_find_font (fontset, c, face, id, 0); |
eaa0402c KH |
686 | if (VECTORP (rfont_def)) |
687 | return rfont_def; | |
688 | if (EQ (rfont_def, Qt)) | |
689 | return Qnil; | |
41ad6003 KH |
690 | |
691 | /* Try a font-group of the default fontset. */ | |
692 | base_fontset = FONTSET_BASE (fontset); | |
693 | if (! EQ (base_fontset, Vdefault_fontset)) | |
694 | { | |
695 | if (NILP (FONTSET_DEFAULT (fontset))) | |
696 | FONTSET_DEFAULT (fontset) | |
697 | = make_fontset (FONTSET_FRAME (fontset), Qnil, Vdefault_fontset); | |
698 | rfont_def = fontset_find_font (FONTSET_DEFAULT (fontset), c, face, id, 0); | |
699 | if (VECTORP (rfont_def)) | |
700 | return rfont_def; | |
701 | if (EQ (rfont_def, Qt)) | |
702 | return Qnil; | |
703 | } | |
704 | ||
705 | /* Try a fallback font-group of FONTSET. */ | |
1c82b4b3 | 706 | rfont_def = fontset_find_font (fontset, c, face, id, 1); |
dbf46ba6 KH |
707 | if (VECTORP (rfont_def)) |
708 | return rfont_def; | |
709 | if (EQ (rfont_def, Qt)) | |
710 | return Qnil; | |
d67f7f1a | 711 | |
dbf46ba6 | 712 | /* Try a fallback font-group of the default fontset . */ |
41ad6003 KH |
713 | if (! EQ (base_fontset, Vdefault_fontset)) |
714 | { | |
715 | rfont_def = fontset_find_font (FONTSET_DEFAULT (fontset), c, face, id, 1); | |
716 | if (VECTORP (rfont_def)) | |
717 | return rfont_def; | |
718 | } | |
719 | ||
8657206e | 720 | /* Remember that we have no font for C. */ |
41ad6003 | 721 | FONTSET_SET (fontset, make_number (c), Qt); |
d67f7f1a | 722 | |
41ad6003 | 723 | return Qnil; |
0d407d77 KH |
724 | } |
725 | ||
0d407d77 | 726 | /* Return a newly created fontset with NAME. If BASE is nil, make a |
06f76f0d | 727 | base fontset. Otherwise make a realized fontset whose base is |
0d407d77 KH |
728 | BASE. */ |
729 | ||
730 | static Lisp_Object | |
731 | make_fontset (frame, name, base) | |
732 | Lisp_Object frame, name, base; | |
4ed46869 | 733 | { |
1337ac77 | 734 | Lisp_Object fontset; |
0d407d77 KH |
735 | int size = ASIZE (Vfontset_table); |
736 | int id = next_fontset_id; | |
0d407d77 KH |
737 | |
738 | /* Find a free slot in Vfontset_table. Usually, next_fontset_id is | |
739 | the next available fontset ID. So it is expected that this loop | |
740 | terminates quickly. In addition, as the last element of | |
fc8865fc | 741 | Vfontset_table is always nil, we don't have to check the range of |
0d407d77 KH |
742 | id. */ |
743 | while (!NILP (AREF (Vfontset_table, id))) id++; | |
744 | ||
745 | if (id + 1 == size) | |
63655c83 | 746 | Vfontset_table = larger_vector (Vfontset_table, size + 32, Qnil); |
4ed46869 | 747 | |
11d9bd93 | 748 | fontset = Fmake_char_table (Qfontset, Qnil); |
0d407d77 KH |
749 | |
750 | FONTSET_ID (fontset) = make_number (id); | |
06f76f0d KH |
751 | if (NILP (base)) |
752 | { | |
753 | FONTSET_NAME (fontset) = name; | |
754 | } | |
755 | else | |
756 | { | |
757 | FONTSET_NAME (fontset) = Qnil; | |
758 | FONTSET_FRAME (fontset) = frame; | |
759 | FONTSET_BASE (fontset) = base; | |
760 | } | |
0d407d77 | 761 | |
06f76f0d | 762 | ASET (Vfontset_table, id, fontset); |
0d407d77 KH |
763 | next_fontset_id = id + 1; |
764 | return fontset; | |
4ed46869 KH |
765 | } |
766 | ||
0d407d77 | 767 | |
2cdd4f88 MB |
768 | /* Set the ASCII font of the default fontset to FONTNAME if that is |
769 | not yet set. */ | |
770 | void | |
771 | set_default_ascii_font (fontname) | |
0d407d77 KH |
772 | Lisp_Object fontname; |
773 | { | |
d7fb7b91 | 774 | if (! STRINGP (FONTSET_ASCII (Vdefault_fontset))) |
2cdd4f88 MB |
775 | { |
776 | int id = fs_query_fontset (fontname, 2); | |
777 | ||
778 | if (id >= 0) | |
d7fb7b91 KH |
779 | fontname = FONTSET_ASCII (FONTSET_FROM_ID (id)); |
780 | FONTSET_ASCII (Vdefault_fontset)= fontname; | |
2cdd4f88 | 781 | } |
0d407d77 KH |
782 | } |
783 | ||
784 | \f | |
1d5d7200 | 785 | /********** INTERFACES TO xfaces.c, xfns.c, and dispextern.h **********/ |
0d407d77 | 786 | |
1d5d7200 | 787 | /* Return the name of the fontset who has ID. */ |
0d407d77 KH |
788 | |
789 | Lisp_Object | |
790 | fontset_name (id) | |
791 | int id; | |
792 | { | |
793 | Lisp_Object fontset; | |
06f76f0d | 794 | |
0d407d77 KH |
795 | fontset = FONTSET_FROM_ID (id); |
796 | return FONTSET_NAME (fontset); | |
797 | } | |
798 | ||
799 | ||
1d5d7200 | 800 | /* Return the ASCII font name of the fontset who has ID. */ |
0d407d77 KH |
801 | |
802 | Lisp_Object | |
803 | fontset_ascii (id) | |
804 | int id; | |
805 | { | |
806 | Lisp_Object fontset, elt; | |
06f76f0d | 807 | |
0d407d77 KH |
808 | fontset= FONTSET_FROM_ID (id); |
809 | elt = FONTSET_ASCII (fontset); | |
8aa07a8d KH |
810 | if (CONSP (elt)) |
811 | elt = XCAR (elt); | |
1d5d7200 | 812 | return elt; |
0d407d77 KH |
813 | } |
814 | ||
9459b1e9 KH |
815 | void |
816 | free_realized_fontset (f, fontset) | |
817 | FRAME_PTR f; | |
818 | Lisp_Object fontset; | |
819 | { | |
9459b1e9 KH |
820 | Lisp_Object tail; |
821 | ||
822 | return; | |
823 | for (tail = FONTSET_OBJLIST (fontset); CONSP (tail); tail = XCDR (tail)) | |
824 | { | |
825 | xassert (FONT_OBJECT_P (XCAR (tail))); | |
826 | font_close_object (f, XCAR (tail)); | |
827 | } | |
828 | } | |
0d407d77 | 829 | |
06f76f0d KH |
830 | /* Free fontset of FACE defined on frame F. Called from |
831 | free_realized_face. */ | |
0d407d77 | 832 | |
4ed46869 | 833 | void |
0d407d77 KH |
834 | free_face_fontset (f, face) |
835 | FRAME_PTR f; | |
836 | struct face *face; | |
4ed46869 | 837 | { |
452a78e0 KH |
838 | Lisp_Object fontset; |
839 | ||
ff7a2223 | 840 | fontset = FONTSET_FROM_ID (face->fontset); |
581f7ac7 KH |
841 | if (NILP (fontset)) |
842 | return; | |
843 | xassert (! BASE_FONTSET_P (fontset)); | |
452a78e0 | 844 | xassert (f == XFRAME (FONTSET_FRAME (fontset))); |
9459b1e9 | 845 | free_realized_fontset (f, fontset); |
1d5d7200 | 846 | ASET (Vfontset_table, face->fontset, Qnil); |
06f76f0d KH |
847 | if (face->fontset < next_fontset_id) |
848 | next_fontset_id = face->fontset; | |
eb36588a | 849 | if (! NILP (FONTSET_DEFAULT (fontset))) |
452a78e0 | 850 | { |
e1a14cdc | 851 | int id = XINT (FONTSET_ID (FONTSET_DEFAULT (fontset))); |
eb152aa9 | 852 | |
452a78e0 KH |
853 | fontset = AREF (Vfontset_table, id); |
854 | xassert (!NILP (fontset) && ! BASE_FONTSET_P (fontset)); | |
855 | xassert (f == XFRAME (FONTSET_FRAME (fontset))); | |
9459b1e9 | 856 | free_realized_fontset (f, fontset); |
452a78e0 KH |
857 | ASET (Vfontset_table, id, Qnil); |
858 | if (id < next_fontset_id) | |
859 | next_fontset_id = face->fontset; | |
860 | } | |
581f7ac7 | 861 | face->fontset = -1; |
0d407d77 | 862 | } |
18998710 | 863 | |
0d407d77 | 864 | |
e0f24100 | 865 | /* Return 1 if FACE is suitable for displaying character C. |
0d407d77 | 866 | Otherwise return 0. Called from the macro FACE_SUITABLE_FOR_CHAR_P |
06f76f0d | 867 | when C is not an ASCII character. */ |
0d407d77 KH |
868 | |
869 | int | |
870 | face_suitable_for_char_p (face, c) | |
871 | struct face *face; | |
872 | int c; | |
873 | { | |
7e1a1cd9 | 874 | Lisp_Object fontset, rfont_def; |
0d407d77 | 875 | |
0d407d77 | 876 | fontset = FONTSET_FROM_ID (face->fontset); |
7e1a1cd9 KH |
877 | rfont_def = fontset_font (fontset, c, NULL, -1); |
878 | return (VECTORP (rfont_def) | |
581f7ac7 KH |
879 | && INTEGERP (RFONT_DEF_FACE (rfont_def)) |
880 | && face->id == XINT (RFONT_DEF_FACE (rfont_def))); | |
0d407d77 KH |
881 | } |
882 | ||
883 | ||
884 | /* Return ID of face suitable for displaying character C on frame F. | |
1d5d7200 KH |
885 | FACE must be reazlied for ASCII characters in advance. Called from |
886 | the macro FACE_FOR_CHAR. */ | |
0d407d77 KH |
887 | |
888 | int | |
6bad8007 | 889 | face_for_char (f, face, c, pos, object) |
0d407d77 KH |
890 | FRAME_PTR f; |
891 | struct face *face; | |
6bad8007 KH |
892 | int c, pos; |
893 | Lisp_Object object; | |
0d407d77 | 894 | { |
303d5190 | 895 | Lisp_Object fontset, rfont_def, charset; |
7e1a1cd9 | 896 | int face_id; |
6bad8007 | 897 | int id; |
1d5d7200 | 898 | |
ea217c11 KH |
899 | /* If face->fontset is negative (that happens when no font is found |
900 | for face), just return face->ascii_face because we can't do | |
901 | anything. Perhaps, we should fix the callers to assure | |
902 | that face->fontset is always valid. */ | |
903 | if (ASCII_CHAR_P (c) || face->fontset < 0) | |
1d5d7200 | 904 | return face->ascii_face->id; |
0d407d77 KH |
905 | |
906 | xassert (fontset_id_valid_p (face->fontset)); | |
907 | fontset = FONTSET_FROM_ID (face->fontset); | |
908 | xassert (!BASE_FONTSET_P (fontset)); | |
41ad6003 | 909 | |
6bad8007 | 910 | if (pos < 0) |
303d5190 KH |
911 | { |
912 | id = -1; | |
913 | charset = Qnil; | |
914 | } | |
6bad8007 KH |
915 | else |
916 | { | |
917 | charset = Fget_char_property (make_number (pos), Qcharset, object); | |
b1bde622 | 918 | if (CHARSETP (charset)) |
28e2436a KH |
919 | { |
920 | Lisp_Object val; | |
921 | ||
a124bbb6 | 922 | val = assq_no_quit (charset, Vfont_encoding_charset_alist); |
28e2436a KH |
923 | if (CONSP (val) && CHARSETP (XCDR (val))) |
924 | charset = XCDR (val); | |
925 | id = XINT (CHARSET_SYMBOL_ID (charset)); | |
926 | } | |
b1bde622 KH |
927 | else |
928 | id = -1; | |
6bad8007 | 929 | } |
b59e66b3 | 930 | |
cd872f08 | 931 | font_deferred_log ("font for", Fcons (make_number (c), charset), Qnil); |
7e1a1cd9 KH |
932 | rfont_def = fontset_font (fontset, c, face, id); |
933 | if (VECTORP (rfont_def)) | |
934 | { | |
581f7ac7 KH |
935 | if (INTEGERP (RFONT_DEF_FACE (rfont_def))) |
936 | face_id = XINT (RFONT_DEF_FACE (rfont_def)); | |
8aa07a8d | 937 | else |
7e1a1cd9 | 938 | { |
581f7ac7 | 939 | Lisp_Object font_object; |
7e1a1cd9 | 940 | |
581f7ac7 KH |
941 | font_object = RFONT_DEF_OBJECT (rfont_def); |
942 | face_id = face_for_font (f, font_object, face); | |
943 | RFONT_DEF_SET_FACE (rfont_def, face_id); | |
7e1a1cd9 | 944 | } |
7e1a1cd9 | 945 | } |
581f7ac7 | 946 | else |
7e1a1cd9 | 947 | { |
581f7ac7 KH |
948 | if (INTEGERP (FONTSET_NOFONT_FACE (fontset))) |
949 | face_id = XINT (FONTSET_NOFONT_FACE (fontset)); | |
950 | else | |
951 | { | |
952 | face_id = face_for_font (f, Qnil, face); | |
953 | FONTSET_NOFONT_FACE (fontset) = make_number (face_id); | |
954 | } | |
7e1a1cd9 | 955 | } |
581f7ac7 KH |
956 | xassert (face_id >= 0); |
957 | return face_id; | |
0d407d77 KH |
958 | } |
959 | ||
960 | ||
514cf218 KH |
961 | Lisp_Object |
962 | font_for_char (face, c, pos, object) | |
963 | struct face *face; | |
964 | int c, pos; | |
965 | Lisp_Object object; | |
966 | { | |
967 | Lisp_Object fontset, rfont_def, charset; | |
968 | int face_id; | |
969 | int id; | |
970 | ||
971 | if (ASCII_CHAR_P (c)) | |
972 | { | |
973 | Lisp_Object font_object; | |
974 | ||
975 | XSETFONT (font_object, face->ascii_face->font); | |
976 | return font_object; | |
977 | } | |
978 | ||
979 | xassert (fontset_id_valid_p (face->fontset)); | |
980 | fontset = FONTSET_FROM_ID (face->fontset); | |
981 | xassert (!BASE_FONTSET_P (fontset)); | |
982 | if (pos < 0) | |
983 | { | |
984 | id = -1; | |
985 | charset = Qnil; | |
986 | } | |
987 | else | |
988 | { | |
989 | charset = Fget_char_property (make_number (pos), Qcharset, object); | |
b1bde622 | 990 | if (CHARSETP (charset)) |
514cf218 KH |
991 | { |
992 | Lisp_Object val; | |
993 | ||
9fe78804 | 994 | val = assq_no_quit (charset, Vfont_encoding_charset_alist); |
514cf218 KH |
995 | if (CONSP (val) && CHARSETP (XCDR (val))) |
996 | charset = XCDR (val); | |
997 | id = XINT (CHARSET_SYMBOL_ID (charset)); | |
998 | } | |
b1bde622 KH |
999 | else |
1000 | id = -1; | |
514cf218 KH |
1001 | } |
1002 | ||
1003 | font_deferred_log ("font for", Fcons (make_number (c), charset), Qnil); | |
1004 | rfont_def = fontset_font (fontset, c, face, id); | |
1005 | return (VECTORP (rfont_def) | |
1006 | ? RFONT_DEF_OBJECT (rfont_def) | |
1007 | : Qnil); | |
1008 | } | |
1009 | ||
1010 | ||
0d407d77 KH |
1011 | /* Make a realized fontset for ASCII face FACE on frame F from the |
1012 | base fontset BASE_FONTSET_ID. If BASE_FONTSET_ID is -1, use the | |
1013 | default fontset as the base. Value is the id of the new fontset. | |
1014 | Called from realize_x_face. */ | |
1015 | ||
1016 | int | |
1d5d7200 | 1017 | make_fontset_for_ascii_face (f, base_fontset_id, face) |
0d407d77 KH |
1018 | FRAME_PTR f; |
1019 | int base_fontset_id; | |
1d5d7200 | 1020 | struct face *face; |
0d407d77 | 1021 | { |
1337ac77 | 1022 | Lisp_Object base_fontset, fontset, frame; |
0d407d77 KH |
1023 | |
1024 | XSETFRAME (frame, f); | |
1025 | if (base_fontset_id >= 0) | |
1026 | { | |
1027 | base_fontset = FONTSET_FROM_ID (base_fontset_id); | |
1028 | if (!BASE_FONTSET_P (base_fontset)) | |
1029 | base_fontset = FONTSET_BASE (base_fontset); | |
1d5d7200 KH |
1030 | if (! BASE_FONTSET_P (base_fontset)) |
1031 | abort (); | |
4ed46869 | 1032 | } |
0d407d77 KH |
1033 | else |
1034 | base_fontset = Vdefault_fontset; | |
1035 | ||
1036 | fontset = make_fontset (frame, Qnil, base_fontset); | |
f3231837 | 1037 | return XINT (FONTSET_ID (fontset)); |
0d407d77 KH |
1038 | } |
1039 | ||
0d407d77 | 1040 | \f |
1d5d7200 | 1041 | |
4ed46869 KH |
1042 | /* Cache data used by fontset_pattern_regexp. The car part is a |
1043 | pattern string containing at least one wild card, the cdr part is | |
1044 | the corresponding regular expression. */ | |
1045 | static Lisp_Object Vcached_fontset_data; | |
1046 | ||
dbf46ba6 | 1047 | #define CACHED_FONTSET_NAME ((char *) SDATA (XCAR (Vcached_fontset_data))) |
7539e11f | 1048 | #define CACHED_FONTSET_REGEX (XCDR (Vcached_fontset_data)) |
4ed46869 KH |
1049 | |
1050 | /* If fontset name PATTERN contains any wild card, return regular | |
1051 | expression corresponding to PATTERN. */ | |
1052 | ||
0d407d77 | 1053 | static Lisp_Object |
4ed46869 KH |
1054 | fontset_pattern_regexp (pattern) |
1055 | Lisp_Object pattern; | |
1056 | { | |
dbf46ba6 KH |
1057 | if (!index ((char *) SDATA (pattern), '*') |
1058 | && !index ((char *) SDATA (pattern), '?')) | |
4ed46869 | 1059 | /* PATTERN does not contain any wild cards. */ |
1c283e35 | 1060 | return Qnil; |
4ed46869 KH |
1061 | |
1062 | if (!CONSP (Vcached_fontset_data) | |
dbf46ba6 | 1063 | || strcmp ((char *) SDATA (pattern), CACHED_FONTSET_NAME)) |
4ed46869 KH |
1064 | { |
1065 | /* We must at first update the cached data. */ | |
6cc06608 | 1066 | unsigned char *regex, *p0, *p1; |
821bc4db | 1067 | int ndashes = 0, nstars = 0, nescs = 0; |
6cc06608 | 1068 | |
fc1062f5 KH |
1069 | for (p0 = SDATA (pattern); *p0; p0++) |
1070 | { | |
1071 | if (*p0 == '-') | |
1072 | ndashes++; | |
a653f812 | 1073 | else if (*p0 == '*') |
fc1062f5 | 1074 | nstars++; |
821bc4db KH |
1075 | else if (*p0 == '[' |
1076 | || *p0 == '.' || *p0 == '\\' | |
8510724d | 1077 | || *p0 == '+' || *p0 == '^' |
821bc4db KH |
1078 | || *p0 == '$') |
1079 | nescs++; | |
fc1062f5 KH |
1080 | } |
1081 | ||
1082 | /* If PATTERN is not full XLFD we conert "*" to ".*". Otherwise | |
1083 | we convert "*" to "[^-]*" which is much faster in regular | |
1084 | expression matching. */ | |
1085 | if (ndashes < 14) | |
821bc4db | 1086 | p1 = regex = (unsigned char *) alloca (SBYTES (pattern) + 2 * nstars + 2 * nescs + 1); |
fc1062f5 | 1087 | else |
821bc4db | 1088 | p1 = regex = (unsigned char *) alloca (SBYTES (pattern) + 5 * nstars + 2 * nescs + 1); |
4ed46869 | 1089 | |
1c283e35 | 1090 | *p1++ = '^'; |
6cc06608 | 1091 | for (p0 = SDATA (pattern); *p0; p0++) |
4ed46869 | 1092 | { |
a653f812 | 1093 | if (*p0 == '*') |
4ed46869 | 1094 | { |
fc1062f5 KH |
1095 | if (ndashes < 14) |
1096 | *p1++ = '.'; | |
1097 | else | |
1098 | *p1++ = '[', *p1++ = '^', *p1++ = '-', *p1++ = ']'; | |
1c283e35 | 1099 | *p1++ = '*'; |
4ed46869 | 1100 | } |
1c283e35 | 1101 | else if (*p0 == '?') |
d96d677d | 1102 | *p1++ = '.'; |
821bc4db KH |
1103 | else if (*p0 == '[' |
1104 | || *p0 == '.' || *p0 == '\\' | |
8510724d | 1105 | || *p0 == '+' || *p0 == '^' |
821bc4db KH |
1106 | || *p0 == '$') |
1107 | *p1++ = '\\', *p1++ = *p0; | |
1c283e35 KH |
1108 | else |
1109 | *p1++ = *p0; | |
4ed46869 KH |
1110 | } |
1111 | *p1++ = '$'; | |
1112 | *p1++ = 0; | |
1113 | ||
dbf46ba6 KH |
1114 | Vcached_fontset_data = Fcons (build_string ((char *) SDATA (pattern)), |
1115 | build_string ((char *) regex)); | |
4ed46869 KH |
1116 | } |
1117 | ||
1118 | return CACHED_FONTSET_REGEX; | |
1119 | } | |
1120 | ||
0d407d77 | 1121 | /* Return ID of the base fontset named NAME. If there's no such |
a653f812 KH |
1122 | fontset, return -1. NAME_PATTERN specifies how to treat NAME as this: |
1123 | 0: pattern containing '*' and '?' as wildcards | |
1124 | 1: regular expression | |
1125 | 2: literal fontset name | |
1126 | */ | |
0d407d77 KH |
1127 | |
1128 | int | |
a653f812 | 1129 | fs_query_fontset (name, name_pattern) |
0d407d77 | 1130 | Lisp_Object name; |
a653f812 | 1131 | int name_pattern; |
0d407d77 | 1132 | { |
1337ac77 | 1133 | Lisp_Object tem; |
0d407d77 KH |
1134 | int i; |
1135 | ||
1136 | name = Fdowncase (name); | |
a653f812 | 1137 | if (name_pattern != 1) |
0d407d77 KH |
1138 | { |
1139 | tem = Frassoc (name, Vfontset_alias_alist); | |
6bad8007 KH |
1140 | if (NILP (tem)) |
1141 | tem = Fassoc (name, Vfontset_alias_alist); | |
0d407d77 KH |
1142 | if (CONSP (tem) && STRINGP (XCAR (tem))) |
1143 | name = XCAR (tem); | |
a653f812 | 1144 | else if (name_pattern == 0) |
0d407d77 KH |
1145 | { |
1146 | tem = fontset_pattern_regexp (name); | |
1147 | if (STRINGP (tem)) | |
1148 | { | |
1149 | name = tem; | |
a653f812 | 1150 | name_pattern = 1; |
0d407d77 KH |
1151 | } |
1152 | } | |
1153 | } | |
1154 | ||
1155 | for (i = 0; i < ASIZE (Vfontset_table); i++) | |
1156 | { | |
6e1b0d8c | 1157 | Lisp_Object fontset, this_name; |
0d407d77 KH |
1158 | |
1159 | fontset = FONTSET_FROM_ID (i); | |
1160 | if (NILP (fontset) | |
1161 | || !BASE_FONTSET_P (fontset)) | |
1162 | continue; | |
1163 | ||
6e1b0d8c | 1164 | this_name = FONTSET_NAME (fontset); |
a653f812 | 1165 | if (name_pattern == 1 |
581f7ac7 | 1166 | ? fast_string_match_ignore_case (name, this_name) >= 0 |
05131107 | 1167 | : !xstrcasecmp (SDATA (name), SDATA (this_name))) |
0d407d77 KH |
1168 | return i; |
1169 | } | |
1170 | return -1; | |
1171 | } | |
1172 | ||
1173 | ||
727fb790 | 1174 | DEFUN ("query-fontset", Fquery_fontset, Squery_fontset, 1, 2, 0, |
335c5470 PJ |
1175 | doc: /* Return the name of a fontset that matches PATTERN. |
1176 | The value is nil if there is no matching fontset. | |
1177 | PATTERN can contain `*' or `?' as a wildcard | |
1178 | just as X font name matching algorithm allows. | |
1179 | If REGEXPP is non-nil, PATTERN is a regular expression. */) | |
1180 | (pattern, regexpp) | |
727fb790 | 1181 | Lisp_Object pattern, regexpp; |
4ed46869 | 1182 | { |
0d407d77 KH |
1183 | Lisp_Object fontset; |
1184 | int id; | |
4ed46869 KH |
1185 | |
1186 | (*check_window_system_func) (); | |
1187 | ||
b7826503 | 1188 | CHECK_STRING (pattern); |
4ed46869 | 1189 | |
d5db4077 | 1190 | if (SCHARS (pattern) == 0) |
4ed46869 KH |
1191 | return Qnil; |
1192 | ||
0d407d77 KH |
1193 | id = fs_query_fontset (pattern, !NILP (regexpp)); |
1194 | if (id < 0) | |
1195 | return Qnil; | |
4ed46869 | 1196 | |
0d407d77 KH |
1197 | fontset = FONTSET_FROM_ID (id); |
1198 | return FONTSET_NAME (fontset); | |
4ed46869 KH |
1199 | } |
1200 | ||
06f76f0d | 1201 | /* Return a list of base fontset names matching PATTERN on frame F. */ |
4ed46869 KH |
1202 | |
1203 | Lisp_Object | |
1204 | list_fontsets (f, pattern, size) | |
1205 | FRAME_PTR f; | |
1206 | Lisp_Object pattern; | |
1207 | int size; | |
1208 | { | |
1337ac77 | 1209 | Lisp_Object frame, regexp, val; |
0d407d77 | 1210 | int id; |
4ed46869 | 1211 | |
0d407d77 | 1212 | XSETFRAME (frame, f); |
4ed46869 | 1213 | |
0d407d77 | 1214 | regexp = fontset_pattern_regexp (pattern); |
4ed46869 | 1215 | val = Qnil; |
4ed46869 | 1216 | |
0d407d77 KH |
1217 | for (id = 0; id < ASIZE (Vfontset_table); id++) |
1218 | { | |
6e1b0d8c | 1219 | Lisp_Object fontset, name; |
0d407d77 KH |
1220 | |
1221 | fontset = FONTSET_FROM_ID (id); | |
1222 | if (NILP (fontset) | |
1223 | || !BASE_FONTSET_P (fontset) | |
1224 | || !EQ (frame, FONTSET_FRAME (fontset))) | |
1225 | continue; | |
6e1b0d8c | 1226 | name = FONTSET_NAME (fontset); |
0d407d77 | 1227 | |
1d5d7200 | 1228 | if (STRINGP (regexp) |
6e1b0d8c | 1229 | ? (fast_string_match (regexp, name) < 0) |
dbf46ba6 | 1230 | : strcmp ((char *) SDATA (pattern), (char *) SDATA (name))) |
0d407d77 KH |
1231 | continue; |
1232 | ||
0d407d77 | 1233 | val = Fcons (Fcopy_sequence (FONTSET_NAME (fontset)), val); |
4ed46869 KH |
1234 | } |
1235 | ||
1236 | return val; | |
1237 | } | |
1238 | ||
4ed46869 | 1239 | |
8f924df7 | 1240 | /* Free all realized fontsets whose base fontset is BASE. */ |
4ed46869 | 1241 | |
06f76f0d KH |
1242 | static void |
1243 | free_realized_fontsets (base) | |
1244 | Lisp_Object base; | |
1245 | { | |
1246 | int id; | |
4ed46869 | 1247 | |
2f034212 | 1248 | #if 0 |
27e20b2f KH |
1249 | /* For the moment, this doesn't work because free_realized_face |
1250 | doesn't remove FACE from a cache. Until we find a solution, we | |
1251 | suppress this code, and simply use Fclear_face_cache even though | |
1252 | that is not efficient. */ | |
06f76f0d KH |
1253 | BLOCK_INPUT; |
1254 | for (id = 0; id < ASIZE (Vfontset_table); id++) | |
4ed46869 | 1255 | { |
06f76f0d | 1256 | Lisp_Object this = AREF (Vfontset_table, id); |
0d407d77 | 1257 | |
06f76f0d | 1258 | if (EQ (FONTSET_BASE (this), base)) |
0d407d77 | 1259 | { |
06f76f0d | 1260 | Lisp_Object tail; |
4ed46869 | 1261 | |
06f76f0d KH |
1262 | for (tail = FONTSET_FACE_ALIST (this); CONSP (tail); |
1263 | tail = XCDR (tail)) | |
1264 | { | |
1265 | FRAME_PTR f = XFRAME (FONTSET_FRAME (this)); | |
1266 | int face_id = XINT (XCDR (XCAR (tail))); | |
1267 | struct face *face = FACE_FROM_ID (f, face_id); | |
4ed46869 | 1268 | |
06f76f0d KH |
1269 | /* Face THIS itself is also freed by the following call. */ |
1270 | free_realized_face (f, face); | |
1271 | } | |
1272 | } | |
0d407d77 | 1273 | } |
06f76f0d | 1274 | UNBLOCK_INPUT; |
27e20b2f | 1275 | #else /* not 0 */ |
2f034212 KH |
1276 | /* But, we don't have to call Fclear_face_cache if no fontset has |
1277 | been realized from BASE. */ | |
1278 | for (id = 0; id < ASIZE (Vfontset_table); id++) | |
1279 | { | |
1280 | Lisp_Object this = AREF (Vfontset_table, id); | |
1281 | ||
985773c9 | 1282 | if (CHAR_TABLE_P (this) && EQ (FONTSET_BASE (this), base)) |
2f034212 KH |
1283 | { |
1284 | Fclear_face_cache (Qt); | |
1285 | break; | |
1286 | } | |
1287 | } | |
27e20b2f | 1288 | #endif /* not 0 */ |
0d407d77 | 1289 | } |
4ed46869 | 1290 | |
4ed46869 | 1291 | |
0d407d77 KH |
1292 | /* Check validity of NAME as a fontset name and return the |
1293 | corresponding fontset. If not valid, signal an error. | |
1294 | If NAME is t, return Vdefault_fontset. */ | |
1295 | ||
1296 | static Lisp_Object | |
1297 | check_fontset_name (name) | |
1298 | Lisp_Object name; | |
1299 | { | |
1300 | int id; | |
1301 | ||
1302 | if (EQ (name, Qt)) | |
1303 | return Vdefault_fontset; | |
4ed46869 | 1304 | |
b7826503 | 1305 | CHECK_STRING (name); |
a653f812 KH |
1306 | /* First try NAME as literal. */ |
1307 | id = fs_query_fontset (name, 2); | |
1308 | if (id < 0) | |
1309 | /* For backward compatibility, try again NAME as pattern. */ | |
1310 | id = fs_query_fontset (name, 0); | |
0d407d77 | 1311 | if (id < 0) |
d5db4077 | 1312 | error ("Fontset `%s' does not exist", SDATA (name)); |
0d407d77 KH |
1313 | return FONTSET_FROM_ID (id); |
1314 | } | |
4ed46869 | 1315 | |
1d5d7200 KH |
1316 | static void |
1317 | accumulate_script_ranges (arg, range, val) | |
1318 | Lisp_Object arg, range, val; | |
1319 | { | |
1320 | if (EQ (XCAR (arg), val)) | |
1321 | { | |
1322 | if (CONSP (range)) | |
1323 | XSETCDR (arg, Fcons (Fcons (XCAR (range), XCDR (range)), XCDR (arg))); | |
1324 | else | |
1325 | XSETCDR (arg, Fcons (Fcons (range, range), XCDR (arg))); | |
1326 | } | |
1327 | } | |
1328 | ||
1329 | ||
d6aaac9e | 1330 | /* Return an ASCII font name generated from fontset name NAME and |
7ff614ed | 1331 | font-spec ASCII_SPEC. NAME is a string conforming to XLFD. */ |
d6aaac9e KH |
1332 | |
1333 | static INLINE Lisp_Object | |
1334 | generate_ascii_font_name (name, ascii_spec) | |
1335 | Lisp_Object name, ascii_spec; | |
1336 | { | |
7ff614ed | 1337 | Lisp_Object font_spec = Ffont_spec (0, NULL); |
d6aaac9e | 1338 | int i; |
7ff614ed | 1339 | char xlfd[256]; |
d6aaac9e | 1340 | |
dbf46ba6 | 1341 | if (font_parse_xlfd ((char *) SDATA (name), font_spec) < 0) |
7ff614ed | 1342 | error ("Not an XLFD font name: %s", SDATA (name)); |
581f7ac7 | 1343 | for (i = FONT_FOUNDRY_INDEX; i < FONT_EXTRA_INDEX; i++) |
d6aaac9e | 1344 | if (! NILP (AREF (ascii_spec, i))) |
7ff614ed KH |
1345 | ASET (font_spec, i, AREF (ascii_spec, i)); |
1346 | i = font_unparse_xlfd (font_spec, 0, xlfd, 256); | |
1347 | if (i < 0) | |
1348 | error ("Not an XLFD font name: %s", SDATA (name)); | |
1349 | return make_unibyte_string (xlfd, i); | |
d6aaac9e KH |
1350 | } |
1351 | ||
fb78e2ed KH |
1352 | /* Variables referred in set_fontset_font. They are set before |
1353 | map_charset_chars is called in Fset_fontset_font. */ | |
1354 | static Lisp_Object font_def_arg, add_arg; | |
1355 | static int from_arg, to_arg; | |
1356 | ||
1357 | /* Callback function for map_charset_chars in Fset_fontset_font. In | |
1358 | FONTSET, set font_def_arg in a fashion specified by add_arg for | |
1359 | characters in RANGE while ignoring the range between from_arg and | |
1360 | to_arg. */ | |
1361 | ||
2449d4d0 | 1362 | static void |
fb78e2ed KH |
1363 | set_fontset_font (fontset, range) |
1364 | Lisp_Object fontset, range; | |
2449d4d0 | 1365 | { |
fb78e2ed KH |
1366 | if (from_arg < to_arg) |
1367 | { | |
1368 | int from = XINT (XCAR (range)), to = XINT (XCDR (range)); | |
2449d4d0 | 1369 | |
fb78e2ed KH |
1370 | if (from < from_arg) |
1371 | { | |
1372 | if (to > to_arg) | |
1373 | { | |
1374 | Lisp_Object range2; | |
1375 | ||
1376 | range2 = Fcons (make_number (to_arg), XCDR (range)); | |
1377 | FONTSET_ADD (fontset, range, font_def_arg, add_arg); | |
1378 | to = to_arg; | |
1379 | } | |
1380 | if (to > from_arg) | |
1381 | range = Fcons (XCAR (range), make_number (from_arg)); | |
1382 | } | |
1383 | else if (to <= to_arg) | |
1384 | return; | |
1385 | else | |
1386 | { | |
1387 | if (from < to_arg) | |
1388 | range = Fcons (make_number (to_arg), XCDR (range)); | |
1389 | } | |
1390 | } | |
1391 | FONTSET_ADD (fontset, range, font_def_arg, add_arg); | |
2449d4d0 KH |
1392 | } |
1393 | ||
8b67c40a | 1394 | extern Lisp_Object QCfamily, QCregistry; |
d6490542 KH |
1395 | static void update_auto_fontset_alist P_ ((Lisp_Object, Lisp_Object)); |
1396 | ||
d6aaac9e | 1397 | |
1d5d7200 | 1398 | DEFUN ("set-fontset-font", Fset_fontset_font, Sset_fontset_font, 3, 5, 0, |
8f924df7 | 1399 | doc: /* |
eb36588a | 1400 | Modify fontset NAME to use FONT-SPEC for TARGET characters. |
335c5470 | 1401 | |
eb36588a KH |
1402 | TARGET may be a cons; (FROM . TO), where FROM and TO are characters. |
1403 | In that case, use FONT-SPEC for all characters in the range FROM and | |
1404 | TO (inclusive). | |
06f76f0d | 1405 | |
eb36588a KH |
1406 | TARGET may be a script name symbol. In that case, use FONT-SPEC for |
1407 | all characters that belong to the script. | |
06f76f0d | 1408 | |
eb36588a | 1409 | TARGET may be a charset. In that case, use FONT-SPEC for all |
95318a38 | 1410 | characters in the charset. |
1d5d7200 | 1411 | |
eb36588a KH |
1412 | TARGET may be nil. In that case, use FONT-SPEC for any characters for |
1413 | that no FONT-SPEC is specified. | |
1414 | ||
0fdf26e6 | 1415 | FONT-SPEC may one of these: |
581f7ac7 | 1416 | * A font-spec object made by the function `font-spec' (which see). |
3dcd48dd | 1417 | * A cons (FAMILY . REGISTRY), where FAMILY is a font family name and |
581f7ac7 KH |
1418 | REGISTRY is a font registry name. FAMILY may contain foundry |
1419 | name, and REGISTRY may contain encoding name. | |
00c4da0f | 1420 | * A font name string. |
eaa0402c | 1421 | * nil, which explicitly specifies that there's no font for TARGET. |
1d5d7200 KH |
1422 | |
1423 | Optional 4th argument FRAME, if non-nil, is a frame. This argument is | |
1424 | kept for backward compatibility and has no meaning. | |
1425 | ||
1426 | Optional 5th argument ADD, if non-nil, specifies how to add FONT-SPEC | |
eb36588a | 1427 | to the font specifications for TARGET previously set. If it is |
1d5d7200 KH |
1428 | `prepend', FONT-SPEC is prepended. If it is `append', FONT-SPEC is |
1429 | appended. By default, FONT-SPEC overrides the previous settings. */) | |
eb36588a KH |
1430 | (name, target, font_spec, frame, add) |
1431 | Lisp_Object name, target, font_spec, frame, add; | |
0d407d77 | 1432 | { |
06f76f0d | 1433 | Lisp_Object fontset; |
9683749a | 1434 | Lisp_Object font_def, registry, family; |
1d5d7200 | 1435 | Lisp_Object range_list; |
fb78e2ed | 1436 | struct charset *charset = NULL; |
d6490542 KH |
1437 | Lisp_Object fontname; |
1438 | int ascii_changed = 0; | |
0d407d77 KH |
1439 | |
1440 | fontset = check_fontset_name (name); | |
1441 | ||
1d5d7200 KH |
1442 | /* The arg FRAME is kept for backward compatibility. We only check |
1443 | the validity. */ | |
1444 | if (!NILP (frame)) | |
1445 | CHECK_LIVE_FRAME (frame); | |
1446 | ||
d6490542 | 1447 | fontname = Qnil; |
581f7ac7 | 1448 | if (CONSP (font_spec)) |
0d407d77 | 1449 | { |
581f7ac7 | 1450 | Lisp_Object spec = Ffont_spec (0, NULL); |
1d5d7200 | 1451 | |
581f7ac7 KH |
1452 | font_parse_family_registry (XCAR (font_spec), XCDR (font_spec), spec); |
1453 | font_spec = spec; | |
d6490542 | 1454 | fontname = Ffont_xlfd_name (font_spec, Qnil); |
0890801b | 1455 | } |
d67f7f1a | 1456 | else if (STRINGP (font_spec)) |
4ed46869 | 1457 | { |
ea0162a6 | 1458 | Lisp_Object args[2]; |
581f7ac7 | 1459 | extern Lisp_Object QCname; |
ea0162a6 | 1460 | |
d6490542 | 1461 | fontname = font_spec; |
ea0162a6 KH |
1462 | args[0] = QCname; |
1463 | args[1] = font_spec; | |
1464 | font_spec = Ffont_spec (2, args); | |
0d407d77 | 1465 | } |
d6490542 KH |
1466 | else if (FONT_SPEC_P (font_spec)) |
1467 | fontname = Ffont_xlfd_name (font_spec, Qnil); | |
1468 | else if (! NILP (font_spec)) | |
581f7ac7 | 1469 | Fsignal (Qfont, list2 (build_string ("Invalid font-spec"), font_spec)); |
1d5d7200 | 1470 | |
d67f7f1a | 1471 | if (! NILP (font_spec)) |
57e13af9 | 1472 | { |
581f7ac7 KH |
1473 | Lisp_Object encoding, repertory; |
1474 | ||
d67f7f1a | 1475 | family = AREF (font_spec, FONT_FAMILY_INDEX); |
581f7ac7 | 1476 | if (! NILP (family) ) |
d67f7f1a KH |
1477 | family = SYMBOL_NAME (family); |
1478 | registry = AREF (font_spec, FONT_REGISTRY_INDEX); | |
581f7ac7 KH |
1479 | if (! NILP (registry)) |
1480 | registry = Fdowncase (SYMBOL_NAME (registry)); | |
1481 | encoding = find_font_encoding (concat3 (family, build_string ("-"), | |
1482 | registry)); | |
d67f7f1a KH |
1483 | if (NILP (encoding)) |
1484 | encoding = Qascii; | |
1485 | ||
1486 | if (SYMBOLP (encoding)) | |
1487 | { | |
1488 | CHECK_CHARSET (encoding); | |
1489 | encoding = repertory = CHARSET_SYMBOL_ID (encoding); | |
1490 | } | |
1491 | else | |
57e13af9 | 1492 | { |
d67f7f1a KH |
1493 | repertory = XCDR (encoding); |
1494 | encoding = XCAR (encoding); | |
1495 | CHECK_CHARSET (encoding); | |
1496 | encoding = CHARSET_SYMBOL_ID (encoding); | |
1497 | if (! NILP (repertory) && SYMBOLP (repertory)) | |
1498 | { | |
1499 | CHECK_CHARSET (repertory); | |
1500 | repertory = CHARSET_SYMBOL_ID (repertory); | |
1501 | } | |
57e13af9 | 1502 | } |
581f7ac7 | 1503 | FONT_DEF_NEW (font_def, font_spec, encoding, repertory); |
0d407d77 | 1504 | } |
d67f7f1a KH |
1505 | else |
1506 | font_def = Qnil; | |
4ed46869 | 1507 | |
eb36588a | 1508 | if (CHARACTERP (target)) |
d6490542 KH |
1509 | { |
1510 | if (XFASTINT (target) < 0x80) | |
1511 | error ("Can't set a font for partial ASCII range."); | |
1512 | range_list = Fcons (Fcons (target, target), Qnil); | |
1513 | } | |
eb36588a | 1514 | else if (CONSP (target)) |
0d407d77 | 1515 | { |
06f76f0d KH |
1516 | Lisp_Object from, to; |
1517 | ||
eb36588a KH |
1518 | from = Fcar (target); |
1519 | to = Fcdr (target); | |
06f76f0d KH |
1520 | CHECK_CHARACTER (from); |
1521 | CHECK_CHARACTER (to); | |
d6490542 KH |
1522 | if (XFASTINT (from) < 0x80) |
1523 | { | |
1524 | if (XFASTINT (from) != 0 || XFASTINT (to) < 0x7F) | |
1525 | error ("Can't set a font for partial ASCII range."); | |
1526 | ascii_changed = 1; | |
1527 | } | |
eb36588a | 1528 | range_list = Fcons (target, Qnil); |
4ed46869 | 1529 | } |
eb36588a | 1530 | else if (SYMBOLP (target) && !NILP (target)) |
8a9be3ac | 1531 | { |
1d5d7200 KH |
1532 | Lisp_Object script_list; |
1533 | Lisp_Object val; | |
0d407d77 | 1534 | |
1d5d7200 KH |
1535 | range_list = Qnil; |
1536 | script_list = XCHAR_TABLE (Vchar_script_table)->extras[0]; | |
eb36588a | 1537 | if (! NILP (Fmemq (target, script_list))) |
afe93d01 | 1538 | { |
d6490542 KH |
1539 | if (EQ (target, Qlatin)) |
1540 | ascii_changed = 1; | |
eb36588a | 1541 | val = Fcons (target, Qnil); |
1d5d7200 | 1542 | map_char_table (accumulate_script_ranges, Qnil, Vchar_script_table, |
8f924df7 KH |
1543 | val); |
1544 | range_list = XCDR (val); | |
afe93d01 | 1545 | } |
fb78e2ed | 1546 | if (CHARSETP (target)) |
afe93d01 | 1547 | { |
d6490542 KH |
1548 | CHECK_CHARSET_GET_CHARSET (target, charset); |
1549 | if (charset->ascii_compatible_p) | |
1550 | ascii_changed = 1; | |
afe93d01 | 1551 | } |
fb78e2ed | 1552 | else if (NILP (range_list)) |
1d5d7200 | 1553 | error ("Invalid script or charset name: %s", |
eb36588a | 1554 | SDATA (SYMBOL_NAME (target))); |
8a9be3ac | 1555 | } |
eb36588a KH |
1556 | else if (NILP (target)) |
1557 | range_list = Fcons (Qnil, Qnil); | |
1558 | else | |
1559 | error ("Invalid target for setting a font"); | |
0d407d77 | 1560 | |
d6490542 KH |
1561 | if (NILP (font_spec) && ascii_changed) |
1562 | error ("Can't set ASCII font to nil"); | |
fb78e2ed KH |
1563 | |
1564 | if (charset) | |
1565 | { | |
1566 | font_def_arg = font_def; | |
1567 | add_arg = add; | |
1568 | if (NILP (range_list)) | |
1569 | from_arg = to_arg = 0; | |
1570 | else | |
1571 | from_arg = XINT (XCAR (XCAR (range_list))), | |
1572 | to_arg = XINT (XCDR (XCAR (range_list))); | |
1573 | ||
1574 | map_charset_chars (set_fontset_font, Qnil, fontset, charset, | |
1575 | CHARSET_MIN_CODE (charset), | |
1576 | CHARSET_MAX_CODE (charset)); | |
1577 | } | |
1d5d7200 KH |
1578 | for (; CONSP (range_list); range_list = XCDR (range_list)) |
1579 | FONTSET_ADD (fontset, XCAR (range_list), font_def, add); | |
4ed46869 | 1580 | |
06f76f0d KH |
1581 | /* Free all realized fontsets whose base is FONTSET. This way, the |
1582 | specified character(s) are surely redisplayed by a correct | |
1583 | font. */ | |
1584 | free_realized_fontsets (fontset); | |
4ed46869 | 1585 | |
d6490542 KH |
1586 | if (ascii_changed) |
1587 | { | |
1588 | Lisp_Object tail, frame, alist; | |
1589 | int fontset_id = XINT (FONTSET_ID (fontset)); | |
1590 | ||
1591 | alist = Qnil; | |
1592 | FONTSET_ASCII (fontset) = fontname; | |
1593 | name = FONTSET_NAME (fontset); | |
1594 | FOR_EACH_FRAME (tail, frame) | |
1595 | { | |
1596 | FRAME_PTR f = XFRAME (frame); | |
1597 | Lisp_Object font_object; | |
1598 | ||
1599 | if (FRAME_INITIAL_P(f) || FRAME_TERMCAP_P (f)) | |
1600 | continue; | |
1601 | if (fontset_id != FRAME_FONTSET (f)) | |
1602 | continue; | |
1603 | font_object = font_open_by_spec (f, font_spec); | |
1604 | if (! NILP (font_object)) | |
1605 | { | |
1606 | update_auto_fontset_alist (font_object, fontset); | |
1607 | if (NILP (alist)) | |
1608 | alist = Fcons (Fcons (Qfont, name), Qnil); | |
1609 | Fmodify_frame_parameters (frame, alist); | |
1610 | } | |
1611 | } | |
1612 | } | |
1613 | ||
4ed46869 KH |
1614 | return Qnil; |
1615 | } | |
1616 | ||
06f76f0d KH |
1617 | |
1618 | DEFUN ("new-fontset", Fnew_fontset, Snew_fontset, 2, 2, 0, | |
1619 | doc: /* Create a new fontset NAME from font information in FONTLIST. | |
1620 | ||
1d5d7200 | 1621 | FONTLIST is an alist of scripts vs the corresponding font specification list. |
d6aaac9e KH |
1622 | Each element of FONTLIST has the form (SCRIPT FONT-SPEC ...), where a |
1623 | character of SCRIPT is displayed by a font that matches one of | |
1624 | FONT-SPEC. | |
06f76f0d | 1625 | |
d6aaac9e KH |
1626 | SCRIPT is a symbol that appears in the first extra slot of the |
1627 | char-table `char-script-table'. | |
06f76f0d | 1628 | |
1d5d7200 KH |
1629 | FONT-SPEC is a vector, a cons, or a string. See the documentation of |
1630 | `set-fontset-font' for the meaning. */) | |
06f76f0d KH |
1631 | (name, fontlist) |
1632 | Lisp_Object name, fontlist; | |
1633 | { | |
1d5d7200 | 1634 | Lisp_Object fontset; |
1d5d7200 | 1635 | int id; |
06f76f0d KH |
1636 | |
1637 | CHECK_STRING (name); | |
1638 | CHECK_LIST (fontlist); | |
1639 | ||
581f7ac7 | 1640 | name = Fdowncase (name); |
1d5d7200 KH |
1641 | id = fs_query_fontset (name, 0); |
1642 | if (id < 0) | |
0d407d77 | 1643 | { |
581f7ac7 KH |
1644 | Lisp_Object font_spec = Ffont_spec (0, NULL); |
1645 | Lisp_Object short_name; | |
5f2d79e0 | 1646 | char xlfd[256]; |
581f7ac7 KH |
1647 | int len; |
1648 | ||
dbf46ba6 | 1649 | if (font_parse_xlfd ((char *) SDATA (name), font_spec) < 0) |
d6aaac9e | 1650 | error ("Fontset name must be in XLFD format"); |
581f7ac7 | 1651 | short_name = AREF (font_spec, FONT_REGISTRY_INDEX); |
dbf46ba6 | 1652 | if (strncmp ((char *) SDATA (SYMBOL_NAME (short_name)), "fontset-", 8) |
581f7ac7 KH |
1653 | || SBYTES (SYMBOL_NAME (short_name)) < 9) |
1654 | error ("Registry field of fontset name must be \"fontset-*\""); | |
1655 | Vfontset_alias_alist = Fcons (Fcons (name, SYMBOL_NAME (short_name)), | |
1656 | Vfontset_alias_alist); | |
1657 | ASET (font_spec, FONT_REGISTRY_INDEX, Qiso8859_1); | |
d6aaac9e | 1658 | fontset = make_fontset (Qnil, name, Qnil); |
5f2d79e0 KH |
1659 | len = font_unparse_xlfd (font_spec, 0, xlfd, 256); |
1660 | if (len < 0) | |
1661 | error ("Invalid fontset name (perhaps too long): %s", SDATA (name)); | |
581f7ac7 | 1662 | FONTSET_ASCII (fontset) = make_unibyte_string (xlfd, len); |
d6aaac9e | 1663 | } |
1d5d7200 KH |
1664 | else |
1665 | { | |
8510724d | 1666 | fontset = FONTSET_FROM_ID (id); |
1d5d7200 KH |
1667 | free_realized_fontsets (fontset); |
1668 | Fset_char_table_range (fontset, Qt, Qnil); | |
0d407d77 | 1669 | } |
4ed46869 | 1670 | |
1d5d7200 KH |
1671 | for (; ! NILP (fontlist); fontlist = Fcdr (fontlist)) |
1672 | { | |
1673 | Lisp_Object elt, script; | |
1674 | ||
1675 | elt = Fcar (fontlist); | |
1676 | script = Fcar (elt); | |
cc36ddbf KH |
1677 | elt = Fcdr (elt); |
1678 | if (CONSP (elt) && (NILP (XCDR (elt)) || CONSP (XCDR (elt)))) | |
1679 | for (; CONSP (elt); elt = XCDR (elt)) | |
1680 | Fset_fontset_font (name, script, XCAR (elt), Qnil, Qappend); | |
1681 | else | |
1682 | Fset_fontset_font (name, script, elt, Qnil, Qappend); | |
1d5d7200 | 1683 | } |
06f76f0d KH |
1684 | return name; |
1685 | } | |
1686 | ||
1687 | ||
452a78e0 | 1688 | /* Alist of automatically created fontsets. Each element is a cons |
581f7ac7 | 1689 | (FONT-SPEC . FONTSET-ID). */ |
452a78e0 | 1690 | static Lisp_Object auto_fontset_alist; |
d6aaac9e | 1691 | |
d6490542 KH |
1692 | /* Number of automatically created fontsets. */ |
1693 | static int num_auto_fontsets; | |
1694 | ||
1695 | /* Retun a fontset synthesized from FONT-OBJECT. */ | |
1696 | ||
d6aaac9e | 1697 | int |
581f7ac7 | 1698 | fontset_from_font (font_object) |
8aa07a8d KH |
1699 | Lisp_Object font_object; |
1700 | { | |
03ef560c | 1701 | Lisp_Object font_name = font_get_name (font_object); |
581f7ac7 | 1702 | Lisp_Object font_spec = Fcopy_font_spec (font_object); |
d6490542 | 1703 | Lisp_Object registry = AREF (font_spec, FONT_REGISTRY_INDEX); |
581f7ac7 KH |
1704 | Lisp_Object fontset_spec, alias, name, fontset; |
1705 | Lisp_Object val; | |
1706 | int i; | |
8aa07a8d | 1707 | |
581f7ac7 KH |
1708 | val = assoc_no_quit (font_spec, auto_fontset_alist); |
1709 | if (CONSP (val)) | |
1710 | return XINT (FONTSET_ID (XCDR (val))); | |
d6490542 | 1711 | if (num_auto_fontsets++ == 0) |
581f7ac7 | 1712 | alias = intern ("fontset-startup"); |
03ef560c KH |
1713 | else |
1714 | { | |
1715 | char temp[32]; | |
8aa07a8d | 1716 | |
d6490542 | 1717 | sprintf (temp, "fontset-auto%d", num_auto_fontsets - 1); |
581f7ac7 | 1718 | alias = intern (temp); |
03ef560c | 1719 | } |
581f7ac7 KH |
1720 | fontset_spec = Fcopy_font_spec (font_spec); |
1721 | ASET (fontset_spec, FONT_REGISTRY_INDEX, alias); | |
7ae2e7f0 | 1722 | name = Ffont_xlfd_name (fontset_spec, Qnil); |
03ef560c | 1723 | if (NILP (name)) |
581f7ac7 | 1724 | abort (); |
03ef560c | 1725 | fontset = make_fontset (Qnil, name, Qnil); |
581f7ac7 KH |
1726 | Vfontset_alias_alist = Fcons (Fcons (name, SYMBOL_NAME (alias)), |
1727 | Vfontset_alias_alist); | |
1728 | alias = Fdowncase (AREF (font_object, FONT_NAME_INDEX)); | |
1729 | Vfontset_alias_alist = Fcons (Fcons (name, alias), Vfontset_alias_alist); | |
1730 | auto_fontset_alist = Fcons (Fcons (font_spec, fontset), auto_fontset_alist); | |
9b9cd864 | 1731 | font_spec = Fcopy_font_spec (font_spec); |
41ad6003 | 1732 | ASET (font_spec, FONT_REGISTRY_INDEX, Qiso10646_1); |
581f7ac7 KH |
1733 | for (i = FONT_WEIGHT_INDEX; i < FONT_EXTRA_INDEX; i++) |
1734 | ASET (font_spec, i, Qnil); | |
38aaf336 | 1735 | Fset_fontset_font (name, Qlatin, font_spec, Qnil, Qnil); |
1c82b4b3 | 1736 | Fset_fontset_font (name, Qnil, font_spec, Qnil, Qnil); |
d6490542 KH |
1737 | if (registry != Qiso10646_1) |
1738 | { | |
1739 | ASET (font_spec, FONT_REGISTRY_INDEX, registry); | |
1740 | Fset_fontset_font (name, Qascii, font_spec, Qnil, Qnil); | |
1741 | } | |
1742 | FONTSET_ASCII (fontset) = font_name; | |
edfda783 AR |
1743 | |
1744 | #ifdef HAVE_NS | |
1745 | nsfont_make_fontset_for_font(name, font_object); | |
1746 | #endif | |
1747 | ||
03ef560c | 1748 | return XINT (FONTSET_ID (fontset)); |
8aa07a8d KH |
1749 | } |
1750 | ||
d6490542 KH |
1751 | |
1752 | /* Update auto_fontset_alist for FONTSET. When an ASCII font of | |
1753 | FONTSET is changed, we delete an entry of FONTSET if any from | |
1754 | auto_fontset_alist so that FONTSET is not re-used by | |
1755 | fontset_from_font. */ | |
1756 | ||
1757 | static void | |
1758 | update_auto_fontset_alist (font_object, fontset) | |
1759 | Lisp_Object font_object, fontset; | |
1760 | { | |
1761 | Lisp_Object prev, tail; | |
1762 | ||
1763 | for (prev = Qnil, tail = auto_fontset_alist; CONSP (tail); | |
1764 | prev = tail, tail = XCDR (tail)) | |
1765 | if (EQ (fontset, XCDR (XCAR (tail)))) | |
1766 | { | |
1767 | if (NILP (prev)) | |
1768 | auto_fontset_alist = XCDR (tail); | |
1769 | else | |
1770 | XSETCDR (prev, XCDR (tail)); | |
1771 | break; | |
1772 | } | |
1773 | } | |
1774 | ||
1775 | ||
fe44f009 KH |
1776 | /* Return a cons (FONT-OBJECT . GLYPH-CODE). |
1777 | FONT-OBJECT is the font for the character at POSITION in the current | |
1ff005e1 | 1778 | buffer. This is computed from all the text properties and overlays |
cf14fd6e | 1779 | that apply to POSITION. POSTION may be nil, in which case, |
fe44f009 | 1780 | FONT-SPEC is the font for displaying the character CH with the |
cf14fd6e KH |
1781 | default face. |
1782 | ||
92c15c34 KH |
1783 | GLYPH-CODE is the glyph code in the font to use for the character. |
1784 | ||
1785 | If the 2nd optional arg CH is non-nil, it is a character to check | |
1786 | the font instead of the character at POSITION. | |
1787 | ||
1788 | It returns nil in the following cases: | |
1ff005e1 KH |
1789 | |
1790 | (1) The window system doesn't have a font for the character (thus | |
1791 | it is displayed by an empty box). | |
1792 | ||
1793 | (2) The character code is invalid. | |
1794 | ||
cf14fd6e KH |
1795 | (3) If POSITION is not nil, and the current buffer is not displayed |
1796 | in any window. | |
1ff005e1 KH |
1797 | |
1798 | In addition, the returned font name may not take into account of | |
1799 | such redisplay engine hooks as what used in jit-lock-mode if | |
1800 | POSITION is currently not visible. */ | |
1801 | ||
1802 | ||
92c15c34 | 1803 | DEFUN ("internal-char-font", Finternal_char_font, Sinternal_char_font, 1, 2, 0, |
335c5470 | 1804 | doc: /* For internal use only. */) |
92c15c34 KH |
1805 | (position, ch) |
1806 | Lisp_Object position, ch; | |
1ff005e1 | 1807 | { |
0f8b27ea | 1808 | EMACS_INT pos, pos_byte, dummy; |
1ff005e1 KH |
1809 | int face_id; |
1810 | int c; | |
1ff005e1 KH |
1811 | struct frame *f; |
1812 | struct face *face; | |
f0be8ea0 | 1813 | int cs_id; |
1ff005e1 | 1814 | |
cf14fd6e | 1815 | if (NILP (position)) |
92c15c34 KH |
1816 | { |
1817 | CHECK_CHARACTER (ch); | |
1818 | c = XINT (ch); | |
cf14fd6e | 1819 | f = XFRAME (selected_frame); |
f2cec7a9 | 1820 | face_id = lookup_basic_face (f, DEFAULT_FACE_ID); |
327719ee | 1821 | pos = -1; |
f0be8ea0 | 1822 | cs_id = -1; |
cf14fd6e KH |
1823 | } |
1824 | else | |
1825 | { | |
2f80c0a2 | 1826 | Lisp_Object window, charset; |
cf14fd6e KH |
1827 | struct window *w; |
1828 | ||
1829 | CHECK_NUMBER_COERCE_MARKER (position); | |
1830 | pos = XINT (position); | |
1831 | if (pos < BEGV || pos >= ZV) | |
1832 | args_out_of_range_3 (position, make_number (BEGV), make_number (ZV)); | |
1833 | pos_byte = CHAR_TO_BYTE (pos); | |
1834 | if (NILP (ch)) | |
1835 | c = FETCH_CHAR (pos_byte); | |
1836 | else | |
1837 | { | |
1838 | CHECK_NATNUM (ch); | |
1839 | c = XINT (ch); | |
1840 | } | |
1841 | window = Fget_buffer_window (Fcurrent_buffer (), Qnil); | |
1842 | if (NILP (window)) | |
1843 | return Qnil; | |
1844 | w = XWINDOW (window); | |
1845 | f = XFRAME (w->frame); | |
1846 | face_id = face_at_buffer_position (w, pos, -1, -1, &dummy, pos + 100, 0); | |
2f80c0a2 KH |
1847 | charset = Fget_char_property (position, Qcharset, Qnil); |
1848 | if (CHARSETP (charset)) | |
f0be8ea0 | 1849 | cs_id = XINT (CHARSET_SYMBOL_ID (charset)); |
2f80c0a2 | 1850 | else |
f0be8ea0 | 1851 | cs_id = -1; |
92c15c34 | 1852 | } |
1ff005e1 | 1853 | if (! CHAR_VALID_P (c, 0)) |
1ff005e1 | 1854 | return Qnil; |
327719ee | 1855 | face_id = FACE_FOR_CHAR (f, FACE_FROM_ID (f, face_id), c, pos, Qnil); |
1ff005e1 | 1856 | face = FACE_FROM_ID (f, face_id); |
581f7ac7 | 1857 | if (face->font) |
8aa07a8d | 1858 | { |
fe44f009 KH |
1859 | unsigned code = face->font->driver->encode_char (face->font, c); |
1860 | Lisp_Object font_object; | |
581f7ac7 KH |
1861 | /* Assignment to EMACS_INT stops GCC whining about limited range |
1862 | of data type. */ | |
1863 | EMACS_INT cod = code; | |
1864 | ||
1865 | if (code == FONT_INVALID_CODE) | |
1866 | return Qnil; | |
fe44f009 | 1867 | XSETFONT (font_object, face->font); |
581f7ac7 | 1868 | if (cod <= MOST_POSITIVE_FIXNUM) |
fe44f009 KH |
1869 | return Fcons (font_object, make_number (code)); |
1870 | return Fcons (font_object, Fcons (make_number (code >> 16), | |
581f7ac7 | 1871 | make_number (code & 0xFFFF))); |
92c15c34 KH |
1872 | } |
1873 | return Qnil; | |
1ff005e1 KH |
1874 | } |
1875 | ||
1876 | ||
1d5d7200 KH |
1877 | DEFUN ("fontset-info", Ffontset_info, Sfontset_info, 1, 2, 0, |
1878 | doc: /* Return information about a fontset FONTSET on frame FRAME. | |
eb152aa9 | 1879 | The value is a char-table whose elements have this form: |
e2b45cf9 | 1880 | |
1d5d7200 | 1881 | ((FONT-PATTERN OPENED-FONT ...) ...) |
1ff005e1 | 1882 | |
1d5d7200 | 1883 | FONT-PATTERN is a vector: |
1ff005e1 | 1884 | |
1d5d7200 | 1885 | [ FAMILY WEIGHT SLANT SWIDTH ADSTYLE REGISTRY ] |
1ff005e1 | 1886 | |
1d5d7200 | 1887 | or a string of font name pattern. |
1ff005e1 | 1888 | |
d6aaac9e | 1889 | OPENED-FONT is a name of a font actually opened. |
1ff005e1 | 1890 | |
d6aaac9e KH |
1891 | The char-table has one extra slot. The value is a char-table |
1892 | containing the information about the derived fonts from the default | |
eb152aa9 | 1893 | fontset. The format is the same as above. */) |
1d5d7200 KH |
1894 | (fontset, frame) |
1895 | Lisp_Object fontset, frame; | |
4ed46869 KH |
1896 | { |
1897 | FRAME_PTR f; | |
cc7b6145 KH |
1898 | Lisp_Object *realized[2], fontsets[2], tables[2]; |
1899 | Lisp_Object val, elt; | |
1900 | int c, i, j, k; | |
fc8865fc | 1901 | |
4ed46869 KH |
1902 | (*check_window_system_func) (); |
1903 | ||
1d5d7200 | 1904 | fontset = check_fontset_name (fontset); |
0d407d77 | 1905 | |
4ed46869 | 1906 | if (NILP (frame)) |
18f39d0e | 1907 | frame = selected_frame; |
b7826503 | 1908 | CHECK_LIVE_FRAME (frame); |
18f39d0e | 1909 | f = XFRAME (frame); |
4ed46869 | 1910 | |
1d5d7200 KH |
1911 | /* Recode fontsets realized on FRAME from the base fontset FONTSET |
1912 | in the table `realized'. */ | |
cc7b6145 KH |
1913 | realized[0] = (Lisp_Object *) alloca (sizeof (Lisp_Object) |
1914 | * ASIZE (Vfontset_table)); | |
1915 | for (i = j = 0; i < ASIZE (Vfontset_table); i++) | |
0d407d77 | 1916 | { |
1ff005e1 KH |
1917 | elt = FONTSET_FROM_ID (i); |
1918 | if (!NILP (elt) | |
1d5d7200 KH |
1919 | && EQ (FONTSET_BASE (elt), fontset) |
1920 | && EQ (FONTSET_FRAME (elt), frame)) | |
cc7b6145 | 1921 | realized[0][j++] = elt; |
0d407d77 | 1922 | } |
cc7b6145 | 1923 | realized[0][j] = Qnil; |
4ed46869 | 1924 | |
cc7b6145 KH |
1925 | realized[1] = (Lisp_Object *) alloca (sizeof (Lisp_Object) |
1926 | * ASIZE (Vfontset_table)); | |
1927 | for (i = j = 0; ! NILP (realized[0][i]); i++) | |
1928 | { | |
1929 | elt = FONTSET_DEFAULT (realized[0][i]); | |
1930 | if (! NILP (elt)) | |
1931 | realized[1][j++] = elt; | |
1932 | } | |
1933 | realized[1][j] = Qnil; | |
1934 | ||
1935 | tables[0] = Fmake_char_table (Qfontset_info, Qnil); | |
1936 | tables[1] = Fmake_char_table (Qnil, Qnil); | |
1937 | XCHAR_TABLE (tables[0])->extras[0] = tables[1]; | |
1938 | fontsets[0] = fontset; | |
1939 | fontsets[1] = Vdefault_fontset; | |
e2b45cf9 | 1940 | |
1d5d7200 KH |
1941 | /* Accumulate information of the fontset in TABLE. The format of |
1942 | each element is ((FONT-SPEC OPENED-FONT ...) ...). */ | |
cc7b6145 | 1943 | for (k = 0; k <= 1; k++) |
0d407d77 | 1944 | { |
cc7b6145 | 1945 | for (c = 0; c <= MAX_CHAR; ) |
d6aaac9e | 1946 | { |
5b30be1a | 1947 | int from = c, to = MAX_5_BYTE_CHAR; |
0d407d77 | 1948 | |
cc7b6145 KH |
1949 | if (c <= MAX_5_BYTE_CHAR) |
1950 | { | |
1951 | val = char_table_ref_and_range (fontsets[k], c, &from, &to); | |
cc7b6145 KH |
1952 | } |
1953 | else | |
1954 | { | |
1955 | val = FONTSET_FALLBACK (fontsets[k]); | |
1956 | to = MAX_CHAR; | |
1957 | } | |
d6aaac9e | 1958 | if (VECTORP (val)) |
0d407d77 | 1959 | { |
d6aaac9e KH |
1960 | Lisp_Object alist; |
1961 | ||
1962 | /* At first, set ALIST to ((FONT-SPEC) ...). */ | |
1963 | for (alist = Qnil, i = 0; i < ASIZE (val); i++) | |
581f7ac7 KH |
1964 | if (! NILP (AREF (val, i))) |
1965 | alist = Fcons (Fcons (FONT_DEF_SPEC (AREF (val, i)), Qnil), | |
1966 | alist); | |
d6aaac9e KH |
1967 | alist = Fnreverse (alist); |
1968 | ||
660100f3 | 1969 | /* Then store opened font names to cdr of each elements. */ |
cc7b6145 | 1970 | for (i = 0; ! NILP (realized[k][i]); i++) |
1ff005e1 | 1971 | { |
cc7b6145 KH |
1972 | if (c <= MAX_5_BYTE_CHAR) |
1973 | val = FONTSET_REF (realized[k][i], c); | |
1974 | else | |
1975 | val = FONTSET_FALLBACK (realized[k][i]); | |
1976 | if (! VECTORP (val)) | |
d6aaac9e | 1977 | continue; |
581f7ac7 KH |
1978 | /* VAL: [int ? [FACE-ID FONT-DEF FONT-OBJECT int] ... ] */ |
1979 | for (j = 2; j < ASIZE (val); j++) | |
3d4448a8 | 1980 | { |
581f7ac7 KH |
1981 | elt = AREF (val, j); |
1982 | if (FONT_OBJECT_P (RFONT_DEF_OBJECT (elt))) | |
1983 | { | |
1984 | Lisp_Object font_object = RFONT_DEF_OBJECT (elt); | |
1985 | Lisp_Object slot, name; | |
1986 | ||
1987 | slot = Fassq (RFONT_DEF_SPEC (elt), alist); | |
1988 | name = AREF (font_object, FONT_NAME_INDEX); | |
1989 | if (NILP (Fmember (name, XCDR (slot)))) | |
1990 | nconc2 (slot, Fcons (name, Qnil)); | |
1991 | } | |
3d4448a8 | 1992 | } |
1ff005e1 | 1993 | } |
d6aaac9e KH |
1994 | |
1995 | /* Store ALIST in TBL for characters C..TO. */ | |
cc7b6145 KH |
1996 | if (c <= MAX_5_BYTE_CHAR) |
1997 | char_table_set_range (tables[k], c, to, alist); | |
1998 | else | |
1999 | XCHAR_TABLE (tables[k])->defalt = alist; | |
581f7ac7 KH |
2000 | |
2001 | /* At last, change each elements to font names. */ | |
2002 | for (; CONSP (alist); alist = XCDR (alist)) | |
2003 | { | |
2004 | elt = XCAR (alist); | |
7ae2e7f0 | 2005 | XSETCAR (elt, Ffont_xlfd_name (XCAR (elt), Qnil)); |
581f7ac7 | 2006 | } |
0d407d77 | 2007 | } |
d6aaac9e | 2008 | c = to + 1; |
0d407d77 KH |
2009 | } |
2010 | } | |
a921395d | 2011 | |
cc7b6145 | 2012 | return tables[0]; |
4ed46869 KH |
2013 | } |
2014 | ||
1d5d7200 | 2015 | |
0fdf26e6 | 2016 | DEFUN ("fontset-font", Ffontset_font, Sfontset_font, 2, 3, 0, |
335c5470 | 2017 | doc: /* Return a font name pattern for character CH in fontset NAME. |
0fdf26e6 KH |
2018 | If NAME is t, find a pattern in the default fontset. |
2019 | ||
2020 | The value has the form (FAMILY . REGISTRY), where FAMILY is a font | |
2021 | family name and REGISTRY is a font registry name. This is actually | |
2022 | the first font name pattern for CH in the fontset or in the default | |
2023 | fontset. | |
2024 | ||
2025 | If the 2nd optional arg ALL is non-nil, return a list of all font name | |
2026 | patterns. */) | |
2027 | (name, ch, all) | |
2028 | Lisp_Object name, ch, all; | |
0d407d77 | 2029 | { |
1337ac77 | 2030 | int c; |
0fdf26e6 KH |
2031 | Lisp_Object fontset, elt, list, repertory, val; |
2032 | int i, j; | |
0d407d77 KH |
2033 | |
2034 | fontset = check_fontset_name (name); | |
2035 | ||
06f76f0d | 2036 | CHECK_CHARACTER (ch); |
0d407d77 | 2037 | c = XINT (ch); |
0fdf26e6 KH |
2038 | list = Qnil; |
2039 | while (1) | |
2040 | { | |
2041 | for (i = 0, elt = FONTSET_REF (fontset, c); i < 2; | |
2042 | i++, elt = FONTSET_FALLBACK (fontset)) | |
2043 | if (VECTORP (elt)) | |
2044 | for (j = 0; j < ASIZE (elt); j++) | |
2045 | { | |
a124bbb6 KH |
2046 | Lisp_Object family, registry; |
2047 | ||
0fdf26e6 KH |
2048 | val = AREF (elt, j); |
2049 | repertory = AREF (val, 1); | |
2050 | if (INTEGERP (repertory)) | |
2051 | { | |
2052 | struct charset *charset = CHARSET_FROM_ID (XINT (repertory)); | |
2053 | ||
2054 | if (! CHAR_CHARSET_P (c, charset)) | |
2055 | continue; | |
2056 | } | |
2057 | else if (CHAR_TABLE_P (repertory)) | |
2058 | { | |
2059 | if (NILP (CHAR_TABLE_REF (repertory, c))) | |
2060 | continue; | |
2061 | } | |
2062 | val = AREF (val, 0); | |
a124bbb6 KH |
2063 | /* VAL is a FONT-SPEC */ |
2064 | family = AREF (val, FONT_FAMILY_INDEX); | |
2065 | if (! NILP (family)) | |
2066 | family = SYMBOL_NAME (family); | |
2067 | registry = AREF (val, FONT_REGISTRY_INDEX); | |
2068 | if (! NILP (registry)) | |
2069 | registry = SYMBOL_NAME (registry); | |
2070 | val = Fcons (family, registry); | |
0fdf26e6 KH |
2071 | if (NILP (all)) |
2072 | return val; | |
2073 | list = Fcons (val, list); | |
2074 | } | |
2075 | if (EQ (fontset, Vdefault_fontset)) | |
2076 | break; | |
2077 | fontset = Vdefault_fontset; | |
2078 | } | |
2079 | return (Fnreverse (list)); | |
0d407d77 | 2080 | } |
0d407d77 KH |
2081 | |
2082 | DEFUN ("fontset-list", Ffontset_list, Sfontset_list, 0, 0, 0, | |
335c5470 PJ |
2083 | doc: /* Return a list of all defined fontset names. */) |
2084 | () | |
0d407d77 KH |
2085 | { |
2086 | Lisp_Object fontset, list; | |
2087 | int i; | |
2088 | ||
2089 | list = Qnil; | |
2090 | for (i = 0; i < ASIZE (Vfontset_table); i++) | |
2091 | { | |
2092 | fontset = FONTSET_FROM_ID (i); | |
2093 | if (!NILP (fontset) | |
2094 | && BASE_FONTSET_P (fontset)) | |
2095 | list = Fcons (FONTSET_NAME (fontset), list); | |
2096 | } | |
1ff005e1 | 2097 | |
0d407d77 KH |
2098 | return list; |
2099 | } | |
2100 | ||
452a78e0 KH |
2101 | |
2102 | #ifdef FONTSET_DEBUG | |
2103 | ||
2104 | Lisp_Object | |
2105 | dump_fontset (fontset) | |
2106 | Lisp_Object fontset; | |
2107 | { | |
2108 | Lisp_Object vec; | |
2109 | ||
2110 | vec = Fmake_vector (make_number (3), Qnil); | |
2111 | ASET (vec, 0, FONTSET_ID (fontset)); | |
2112 | ||
2113 | if (BASE_FONTSET_P (fontset)) | |
2114 | { | |
2115 | ASET (vec, 1, FONTSET_NAME (fontset)); | |
2116 | } | |
2117 | else | |
2118 | { | |
2119 | Lisp_Object frame; | |
2120 | ||
2121 | frame = FONTSET_FRAME (fontset); | |
2122 | if (FRAMEP (frame)) | |
2123 | { | |
2124 | FRAME_PTR f = XFRAME (frame); | |
2125 | ||
2126 | if (FRAME_LIVE_P (f)) | |
1c82b4b3 KH |
2127 | ASET (vec, 1, |
2128 | Fcons (FONTSET_NAME (FONTSET_BASE (fontset)), f->name)); | |
452a78e0 | 2129 | else |
1c82b4b3 KH |
2130 | ASET (vec, 1, |
2131 | Fcons (FONTSET_NAME (FONTSET_BASE (fontset)), Qnil)); | |
452a78e0 | 2132 | } |
eb36588a KH |
2133 | if (!NILP (FONTSET_DEFAULT (fontset))) |
2134 | ASET (vec, 2, FONTSET_ID (FONTSET_DEFAULT (fontset))); | |
452a78e0 KH |
2135 | } |
2136 | return vec; | |
2137 | } | |
2138 | ||
2139 | DEFUN ("fontset-list-all", Ffontset_list_all, Sfontset_list_all, 0, 0, 0, | |
2140 | doc: /* Return a brief summary of all fontsets for debug use. */) | |
2141 | () | |
2142 | { | |
2143 | Lisp_Object val; | |
2144 | int i; | |
2145 | ||
2146 | for (i = 0, val = Qnil; i < ASIZE (Vfontset_table); i++) | |
2147 | if (! NILP (AREF (Vfontset_table, i))) | |
2148 | val = Fcons (dump_fontset (AREF (Vfontset_table, i)), val); | |
2149 | return (Fnreverse (val)); | |
2150 | } | |
2151 | #endif /* FONTSET_DEBUG */ | |
2152 | ||
dfcf069d | 2153 | void |
4ed46869 KH |
2154 | syms_of_fontset () |
2155 | { | |
1d5d7200 | 2156 | DEFSYM (Qfontset, "fontset"); |
eb36588a | 2157 | Fput (Qfontset, Qchar_table_extra_slots, make_number (9)); |
d6aaac9e KH |
2158 | DEFSYM (Qfontset_info, "fontset-info"); |
2159 | Fput (Qfontset_info, Qchar_table_extra_slots, make_number (1)); | |
4ed46869 | 2160 | |
1d5d7200 KH |
2161 | DEFSYM (Qprepend, "prepend"); |
2162 | DEFSYM (Qappend, "append"); | |
c3fb88cc | 2163 | DEFSYM (Qlatin, "latin"); |
4ed46869 KH |
2164 | |
2165 | Vcached_fontset_data = Qnil; | |
2166 | staticpro (&Vcached_fontset_data); | |
2167 | ||
0d407d77 KH |
2168 | Vfontset_table = Fmake_vector (make_number (32), Qnil); |
2169 | staticpro (&Vfontset_table); | |
0d407d77 KH |
2170 | |
2171 | Vdefault_fontset = Fmake_char_table (Qfontset, Qnil); | |
2172 | staticpro (&Vdefault_fontset); | |
1ff005e1 KH |
2173 | FONTSET_ID (Vdefault_fontset) = make_number (0); |
2174 | FONTSET_NAME (Vdefault_fontset) | |
2175 | = build_string ("-*-*-*-*-*-*-*-*-*-*-*-*-fontset-default"); | |
ff7a2223 | 2176 | ASET (Vfontset_table, 0, Vdefault_fontset); |
1ff005e1 | 2177 | next_fontset_id = 1; |
4ed46869 | 2178 | |
452a78e0 KH |
2179 | auto_fontset_alist = Qnil; |
2180 | staticpro (&auto_fontset_alist); | |
2181 | ||
28e2436a KH |
2182 | DEFVAR_LISP ("font-encoding-charset-alist", &Vfont_encoding_charset_alist, |
2183 | doc: /* | |
2184 | Alist of charsets vs the charsets to determine the preferred font encoding. | |
eb152aa9 | 2185 | Each element looks like (CHARSET . ENCODING-CHARSET), |
28e2436a KH |
2186 | where ENCODING-CHARSET is a charset registered in the variable |
2187 | `font-encoding-alist' as ENCODING. | |
2188 | ||
2189 | When a text has a property `charset' and the value is CHARSET, a font | |
2190 | whose encoding corresponds to ENCODING-CHARSET is preferred. */); | |
2191 | Vfont_encoding_charset_alist = Qnil; | |
2192 | ||
6a7e6d80 | 2193 | DEFVAR_LISP ("use-default-ascent", &Vuse_default_ascent, |
1d5d7200 KH |
2194 | doc: /* |
2195 | Char table of characters whose ascent values should be ignored. | |
335c5470 | 2196 | If an entry for a character is non-nil, the ascent value of the glyph |
eb152aa9 | 2197 | is assumed to be specified by _MULE_DEFAULT_ASCENT property of a font. |
335c5470 PJ |
2198 | |
2199 | This affects how a composite character which contains | |
2200 | such a character is displayed on screen. */); | |
2aeafb78 KH |
2201 | Vuse_default_ascent = Qnil; |
2202 | ||
2203 | DEFVAR_LISP ("ignore-relative-composition", &Vignore_relative_composition, | |
1d5d7200 | 2204 | doc: /* |
eb152aa9 | 2205 | Char table of characters which are not composed relatively. |
335c5470 PJ |
2206 | If an entry for a character is non-nil, a composition sequence |
2207 | which contains that character is displayed so that | |
2208 | the glyph of that character is put without considering | |
2209 | an ascent and descent value of a previous character. */); | |
810abb87 | 2210 | Vignore_relative_composition = Qnil; |
6a7e6d80 | 2211 | |
01d4b817 | 2212 | DEFVAR_LISP ("alternate-fontname-alist", &Valternate_fontname_alist, |
335c5470 PJ |
2213 | doc: /* Alist of fontname vs list of the alternate fontnames. |
2214 | When a specified font name is not found, the corresponding | |
2215 | alternate fontnames (if any) are tried instead. */); | |
01d4b817 | 2216 | Valternate_fontname_alist = Qnil; |
8c83e4f9 | 2217 | |
1c283e35 | 2218 | DEFVAR_LISP ("fontset-alias-alist", &Vfontset_alias_alist, |
335c5470 | 2219 | doc: /* Alist of fontset names vs the aliases. */); |
1ff005e1 KH |
2220 | Vfontset_alias_alist = Fcons (Fcons (FONTSET_NAME (Vdefault_fontset), |
2221 | build_string ("fontset-default")), | |
2222 | Qnil); | |
1c283e35 | 2223 | |
810abb87 KH |
2224 | DEFVAR_LISP ("vertical-centering-font-regexp", |
2225 | &Vvertical_centering_font_regexp, | |
335c5470 PJ |
2226 | doc: /* *Regexp matching font names that require vertical centering on display. |
2227 | When a character is displayed with such fonts, the character is displayed | |
fc8865fc | 2228 | at the vertical center of lines. */); |
810abb87 KH |
2229 | Vvertical_centering_font_regexp = Qnil; |
2230 | ||
21ff5ed6 KH |
2231 | DEFVAR_LISP ("otf-script-alist", &Votf_script_alist, |
2232 | doc: /* Alist of OpenType script tags vs the corresponding script names. */); | |
2233 | Votf_script_alist = Qnil; | |
2234 | ||
4ed46869 KH |
2235 | defsubr (&Squery_fontset); |
2236 | defsubr (&Snew_fontset); | |
2237 | defsubr (&Sset_fontset_font); | |
1ff005e1 | 2238 | defsubr (&Sinternal_char_font); |
4ed46869 | 2239 | defsubr (&Sfontset_info); |
0d407d77 KH |
2240 | defsubr (&Sfontset_font); |
2241 | defsubr (&Sfontset_list); | |
452a78e0 KH |
2242 | #ifdef FONTSET_DEBUG |
2243 | defsubr (&Sfontset_list_all); | |
2244 | #endif | |
e3400864 | 2245 | } |
92c15c34 KH |
2246 | |
2247 | /* arch-tag: ea861585-2f5f-4e5b-9849-d04a9c3a3537 | |
2248 | (do not change this comment) */ |