Commit | Line | Data |
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4ed46869 | 1 | /* Fontset handler. |
429ab54e GM |
2 | Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007 |
3 | Free Software Foundation, Inc. | |
7976eda0 | 4 | Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, |
7cdc02a6 | 5 | 2005, 2006, 2007 |
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 | |
41882805 | 11 | |
369314dc KH |
12 | This file is part of GNU Emacs. |
13 | ||
14 | GNU Emacs is free software; you can redistribute it and/or modify | |
15 | it under the terms of the GNU General Public License as published by | |
1427aa65 | 16 | the Free Software Foundation; either version 3, or (at your option) |
369314dc | 17 | 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 KH |
24 | You should have received a copy of the GNU General Public License |
25 | along with GNU Emacs; see the file COPYING. If not, write to | |
4fc5845f LK |
26 | the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
27 | Boston, MA 02110-1301, USA. */ | |
4ed46869 | 28 | |
0d407d77 KH |
29 | /* #define FONTSET_DEBUG */ |
30 | ||
4ed46869 | 31 | #include <config.h> |
0d407d77 KH |
32 | |
33 | #ifdef FONTSET_DEBUG | |
34 | #include <stdio.h> | |
35 | #endif | |
36 | ||
4ed46869 | 37 | #include "lisp.h" |
06f76f0d | 38 | #include "blockinput.h" |
1ff005e1 | 39 | #include "buffer.h" |
06f76f0d | 40 | #include "character.h" |
4ed46869 KH |
41 | #include "charset.h" |
42 | #include "ccl.h" | |
2538fae4 | 43 | #include "keyboard.h" |
4ed46869 | 44 | #include "frame.h" |
0d407d77 | 45 | #include "dispextern.h" |
e1a14cdc | 46 | #include "intervals.h" |
3541bb8f | 47 | #include "fontset.h" |
0d407d77 | 48 | #include "window.h" |
92c15c34 KH |
49 | #ifdef HAVE_X_WINDOWS |
50 | #include "xterm.h" | |
51 | #endif | |
52 | #ifdef WINDOWSNT | |
53 | #include "w32term.h" | |
54 | #endif | |
55 | #ifdef MAC_OS | |
56 | #include "macterm.h" | |
57 | #endif | |
fa971ac3 | 58 | #include "termhooks.h" |
0d407d77 | 59 | |
8aa07a8d KH |
60 | #ifdef USE_FONT_BACKEND |
61 | #include "font.h" | |
62 | #endif /* USE_FONT_BACKEND */ | |
63 | ||
0d407d77 | 64 | #undef xassert |
8f924df7 | 65 | #ifdef FONTSET_DEBUG |
0d407d77 KH |
66 | #define xassert(X) do {if (!(X)) abort ();} while (0) |
67 | #undef INLINE | |
68 | #define INLINE | |
8f924df7 KH |
69 | #else /* not FONTSET_DEBUG */ |
70 | #define xassert(X) (void) 0 | |
71 | #endif /* not FONTSET_DEBUG */ | |
0d407d77 | 72 | |
a980c932 | 73 | EXFUN (Fclear_face_cache, 1); |
0d407d77 KH |
74 | |
75 | /* FONTSET | |
76 | ||
77 | A fontset is a collection of font related information to give | |
1d5d7200 KH |
78 | similar appearance (style, etc) of characters. A fontset has two |
79 | roles. One is to use for the frame parameter `font' as if it is an | |
80 | ASCII font. In that case, Emacs uses the font specified for | |
81 | `ascii' script for the frame's default font. | |
82 | ||
83 | Another role, the more important one, is to provide information | |
84 | about which font to use for each non-ASCII character. | |
85 | ||
86 | There are two kinds of fontsets; base and realized. A base fontset | |
87 | is created by `new-fontset' from Emacs Lisp explicitly. A realized | |
88 | fontset is created implicitly when a face is realized for ASCII | |
89 | characters. A face is also realized for non-ASCII characters based | |
90 | on an ASCII face. All of non-ASCII faces based on the same ASCII | |
91 | face share the same realized fontset. | |
8f924df7 | 92 | |
06f76f0d KH |
93 | A fontset object is implemented by a char-table whose default value |
94 | and parent are always nil. | |
fc8865fc | 95 | |
1d5d7200 KH |
96 | An element of a base fontset is a vector of FONT-DEFs which itself |
97 | is a vector [ FONT-SPEC ENCODING REPERTORY ]. | |
98 | ||
99 | FONT-SPEC is: | |
100 | [ FAMILY WEIGHT SLANT SWIDTH ADSTYLE REGISTRY ] | |
06f76f0d | 101 | or |
1d5d7200 KH |
102 | FONT-NAME |
103 | where FAMILY, WEIGHT, SLANT, SWIDTH, ADSTYLE, REGISTRY, and | |
104 | FONT-NAME are strings. | |
105 | ||
7e1a1cd9 KH |
106 | Note: Currently WEIGHT through ADSTYLE are ignored. |
107 | ||
57e13af9 KH |
108 | ENCODING is a charset ID that can convert characters to glyph codes |
109 | of the corresponding font. | |
1d5d7200 | 110 | |
57e13af9 KH |
111 | REPERTORY is a charset ID, a char-table, or nil. If REPERTORY is a |
112 | charset ID, the repertory of the charset exactly matches with that | |
113 | of the font. If REPERTORY is a char-table, all characters who have | |
114 | a non-nil value in the table are supported. If REPERTORY is nil, | |
115 | we consult with the font itself to get the repertory. | |
1d5d7200 KH |
116 | |
117 | ENCODING and REPERTORY are extracted from the variable | |
57e13af9 | 118 | Vfont_encoding_alist by using a font name generated from FONT-SPEC |
7e1a1cd9 | 119 | (if it is a vector) or FONT-NAME as a matching target. |
1d5d7200 KH |
120 | |
121 | ||
122 | An element of a realized fontset is nil or t, or has this form: | |
fc8865fc | 123 | |
7e1a1cd9 KH |
124 | [CHARSET-ORDERED-LIST-TICK PREFERRED-CHARSET-ID |
125 | PREFERRED-RFONT-DEF RFONT-DEF0 RFONT-DEF1 ...]. | |
0d407d77 | 126 | |
7e1a1cd9 | 127 | RFONT-DEFn (i.e. Realized FONT-DEF) has this form: |
0d407d77 | 128 | |
7e1a1cd9 | 129 | [ FACE-ID FONT-INDEX FONT-DEF OPENED-FONT-NAME ] |
0d407d77 | 130 | |
7e1a1cd9 | 131 | RFONT-DEFn is automatically reordered by the current charset |
1d5d7200 | 132 | priority list. |
0d407d77 | 133 | |
7e1a1cd9 KH |
134 | The value nil means that we have not yet generated the above vector |
135 | from the base of the fontset. | |
0d407d77 | 136 | |
1d5d7200 KH |
137 | The value t means that no font is available for the corresponding |
138 | range of characters. | |
0d407d77 | 139 | |
0d407d77 | 140 | |
eb36588a | 141 | A fontset has 9 extra slots. |
0d407d77 | 142 | |
1d5d7200 | 143 | The 1st slot: the ID number of the fontset |
0d407d77 | 144 | |
1d5d7200 KH |
145 | The 2nd slot: |
146 | base: the name of the fontset | |
147 | realized: nil | |
0d407d77 | 148 | |
1d5d7200 | 149 | The 3rd slot: |
d6aaac9e | 150 | base: nil |
1d5d7200 | 151 | realized: the base fontset |
06f76f0d | 152 | |
1d5d7200 KH |
153 | The 4th slot: |
154 | base: nil | |
155 | realized: the frame that the fontset belongs to | |
0d407d77 | 156 | |
1d5d7200 KH |
157 | The 5th slot: |
158 | base: the font name for ASCII characters | |
159 | realized: nil | |
0d407d77 | 160 | |
1d5d7200 KH |
161 | The 6th slot: |
162 | base: nil | |
163 | realized: the ID number of a face to use for characters that | |
164 | has no font in a realized fontset. | |
0d407d77 | 165 | |
1d5d7200 KH |
166 | The 7th slot: |
167 | base: nil | |
168 | realized: Alist of font index vs the corresponding repertory | |
169 | char-table. | |
170 | ||
d6aaac9e KH |
171 | The 8th slot: |
172 | base: nil | |
173 | realized: If the base is not the default fontset, a fontset | |
174 | realized from the default fontset, else nil. | |
1d5d7200 | 175 | |
eb36588a | 176 | The 9th slot: |
cc7b6145 KH |
177 | base: Same as element value (but for fallback fonts). |
178 | realized: Likewise. | |
eb36588a | 179 | |
1d5d7200 | 180 | All fontsets are recorded in the vector Vfontset_table. |
0d407d77 KH |
181 | |
182 | ||
183 | DEFAULT FONTSET | |
184 | ||
1d5d7200 KH |
185 | There's a special base fontset named `default fontset' which |
186 | defines the default font specifications. When a base fontset | |
187 | doesn't specify a font for a specific character, the corresponding | |
188 | value in the default fontset is used. | |
0d407d77 | 189 | |
afe93d01 KH |
190 | The parent of a realized fontset created for such a face that has |
191 | no fontset is the default fontset. | |
0d407d77 KH |
192 | |
193 | ||
194 | These structures are hidden from the other codes than this file. | |
195 | The other codes handle fontsets only by their ID numbers. They | |
06f76f0d KH |
196 | usually use the variable name `fontset' for IDs. But, in this |
197 | file, we always use varialbe name `id' for IDs, and name `fontset' | |
1d5d7200 | 198 | for an actual fontset object, i.e., char-table. |
0d407d77 KH |
199 | |
200 | */ | |
201 | ||
202 | /********** VARIABLES and FUNCTION PROTOTYPES **********/ | |
203 | ||
204 | extern Lisp_Object Qfont; | |
d6aaac9e KH |
205 | static Lisp_Object Qfontset; |
206 | static Lisp_Object Qfontset_info; | |
1d5d7200 | 207 | static Lisp_Object Qprepend, Qappend; |
c3fb88cc | 208 | static Lisp_Object Qlatin; |
0d407d77 KH |
209 | |
210 | /* Vector containing all fontsets. */ | |
211 | static Lisp_Object Vfontset_table; | |
212 | ||
fc8865fc | 213 | /* Next possibly free fontset ID. Usually this keeps the minimum |
0d407d77 KH |
214 | fontset ID not yet used. */ |
215 | static int next_fontset_id; | |
216 | ||
217 | /* The default fontset. This gives default FAMILY and REGISTRY of | |
06f76f0d | 218 | font for each character. */ |
0d407d77 | 219 | static Lisp_Object Vdefault_fontset; |
4ed46869 | 220 | |
4ed46869 | 221 | Lisp_Object Vfont_encoding_alist; |
6a7e6d80 | 222 | Lisp_Object Vuse_default_ascent; |
2aeafb78 | 223 | Lisp_Object Vignore_relative_composition; |
01d4b817 | 224 | Lisp_Object Valternate_fontname_alist; |
1c283e35 | 225 | Lisp_Object Vfontset_alias_alist; |
810abb87 | 226 | Lisp_Object Vvertical_centering_font_regexp; |
21ff5ed6 | 227 | Lisp_Object Votf_script_alist; |
4ed46869 | 228 | |
0d407d77 KH |
229 | /* The following six are declarations of callback functions depending |
230 | on window system. See the comments in src/fontset.h for more | |
231 | detail. */ | |
4ed46869 KH |
232 | |
233 | /* Return a pointer to struct font_info of font FONT_IDX of frame F. */ | |
5771dcf4 | 234 | struct font_info *(*get_font_info_func) P_ ((FRAME_PTR f, int font_idx)); |
4ed46869 | 235 | |
fc8865fc PJ |
236 | /* Return a list of font names which matches PATTERN. See the documentation |
237 | of `x-list-fonts' for more details. */ | |
3541bb8f KH |
238 | Lisp_Object (*list_fonts_func) P_ ((struct frame *f, |
239 | Lisp_Object pattern, | |
240 | int size, | |
241 | int maxnames)); | |
4ed46869 KH |
242 | |
243 | /* Load a font named NAME for frame F and return a pointer to the | |
244 | information of the loaded font. If loading is failed, return 0. */ | |
5771dcf4 | 245 | struct font_info *(*load_font_func) P_ ((FRAME_PTR f, char *name, int)); |
4ed46869 KH |
246 | |
247 | /* Return a pointer to struct font_info of a font named NAME for frame F. */ | |
5771dcf4 | 248 | struct font_info *(*query_font_func) P_ ((FRAME_PTR f, char *name)); |
4ed46869 KH |
249 | |
250 | /* Additional function for setting fontset or changing fontset | |
251 | contents of frame F. */ | |
5771dcf4 AS |
252 | void (*set_frame_fontset_func) P_ ((FRAME_PTR f, Lisp_Object arg, |
253 | Lisp_Object oldval)); | |
4ed46869 | 254 | |
727fb790 KH |
255 | /* To find a CCL program, fs_load_font calls this function. |
256 | The argument is a pointer to the struct font_info. | |
fc8865fc | 257 | This function set the member `encoder' of the structure. */ |
727fb790 KH |
258 | void (*find_ccl_program_func) P_ ((struct font_info *)); |
259 | ||
1d5d7200 KH |
260 | Lisp_Object (*get_font_repertory_func) P_ ((struct frame *, |
261 | struct font_info *)); | |
262 | ||
4ed46869 | 263 | /* Check if any window system is used now. */ |
5771dcf4 | 264 | void (*check_window_system_func) P_ ((void)); |
4ed46869 | 265 | |
0d407d77 KH |
266 | |
267 | /* Prototype declarations for static functions. */ | |
b11a4ed7 DL |
268 | static Lisp_Object fontset_add P_ ((Lisp_Object, Lisp_Object, Lisp_Object, |
269 | Lisp_Object)); | |
7e1a1cd9 | 270 | static Lisp_Object fontset_font P_ ((Lisp_Object, int, struct face *, int)); |
0d407d77 | 271 | static Lisp_Object make_fontset P_ ((Lisp_Object, Lisp_Object, Lisp_Object)); |
0d407d77 | 272 | static Lisp_Object fontset_pattern_regexp P_ ((Lisp_Object)); |
1d5d7200 KH |
273 | static void accumulate_script_ranges P_ ((Lisp_Object, Lisp_Object, |
274 | Lisp_Object)); | |
8aa07a8d | 275 | Lisp_Object find_font_encoding P_ ((Lisp_Object)); |
0d407d77 | 276 | |
2449d4d0 KH |
277 | static void set_fontset_font P_ ((Lisp_Object, Lisp_Object)); |
278 | ||
556383ac KH |
279 | #ifdef FONTSET_DEBUG |
280 | ||
281 | /* Return 1 if ID is a valid fontset id, else return 0. */ | |
282 | ||
283 | static int | |
284 | fontset_id_valid_p (id) | |
285 | int id; | |
286 | { | |
287 | return (id >= 0 && id < ASIZE (Vfontset_table) - 1); | |
288 | } | |
289 | ||
290 | #endif | |
291 | ||
0d407d77 KH |
292 | |
293 | \f | |
294 | /********** MACROS AND FUNCTIONS TO HANDLE FONTSET **********/ | |
295 | ||
0d407d77 KH |
296 | /* Return the fontset with ID. No check of ID's validness. */ |
297 | #define FONTSET_FROM_ID(id) AREF (Vfontset_table, id) | |
298 | ||
afe93d01 | 299 | /* Macros to access special values of FONTSET. */ |
0d407d77 | 300 | #define FONTSET_ID(fontset) XCHAR_TABLE (fontset)->extras[0] |
06f76f0d KH |
301 | |
302 | /* Macros to access special values of (base) FONTSET. */ | |
0d407d77 | 303 | #define FONTSET_NAME(fontset) XCHAR_TABLE (fontset)->extras[1] |
06f76f0d KH |
304 | #define FONTSET_ASCII(fontset) XCHAR_TABLE (fontset)->extras[4] |
305 | ||
06f76f0d KH |
306 | /* Macros to access special values of (realized) FONTSET. */ |
307 | #define FONTSET_BASE(fontset) XCHAR_TABLE (fontset)->extras[2] | |
308 | #define FONTSET_FRAME(fontset) XCHAR_TABLE (fontset)->extras[3] | |
1d5d7200 KH |
309 | #define FONTSET_NOFONT_FACE(fontset) XCHAR_TABLE (fontset)->extras[5] |
310 | #define FONTSET_REPERTORY(fontset) XCHAR_TABLE (fontset)->extras[6] | |
eb36588a KH |
311 | #define FONTSET_DEFAULT(fontset) XCHAR_TABLE (fontset)->extras[7] |
312 | ||
cc7b6145 | 313 | /* For both base and realized fontset. */ |
eb36588a | 314 | #define FONTSET_FALLBACK(fontset) XCHAR_TABLE (fontset)->extras[8] |
0d407d77 | 315 | |
e3400864 | 316 | #define BASE_FONTSET_P(fontset) (NILP (FONTSET_BASE (fontset))) |
0d407d77 KH |
317 | |
318 | ||
1d5d7200 KH |
319 | /* Return the element of FONTSET for the character C. If FONTSET is a |
320 | base fontset other then the default fontset and FONTSET doesn't | |
321 | contain information for C, return the information in the default | |
322 | fontset. */ | |
0d407d77 | 323 | |
1d5d7200 KH |
324 | #define FONTSET_REF(fontset, c) \ |
325 | (EQ (fontset, Vdefault_fontset) \ | |
326 | ? CHAR_TABLE_REF (fontset, c) \ | |
327 | : fontset_ref ((fontset), (c))) | |
0d407d77 | 328 | |
afe93d01 | 329 | static Lisp_Object |
0d407d77 KH |
330 | fontset_ref (fontset, c) |
331 | Lisp_Object fontset; | |
332 | int c; | |
333 | { | |
06f76f0d KH |
334 | Lisp_Object elt; |
335 | ||
1d5d7200 KH |
336 | elt = CHAR_TABLE_REF (fontset, c); |
337 | if (NILP (elt) && ! EQ (fontset, Vdefault_fontset) | |
338 | /* Don't check Vdefault_fontset for a realized fontset. */ | |
339 | && NILP (FONTSET_BASE (fontset))) | |
340 | elt = CHAR_TABLE_REF (Vdefault_fontset, c); | |
0d407d77 KH |
341 | return elt; |
342 | } | |
343 | ||
344 | ||
1d5d7200 KH |
345 | /* Return the element of FONTSET for the character C, set FROM and TO |
346 | to the range of characters around C that have the same value as C. | |
347 | If FONTSET is a base fontset other then the default fontset and | |
348 | FONTSET doesn't contain information for C, return the information | |
349 | in the default fontset. */ | |
350 | ||
351 | #define FONTSET_REF_AND_RANGE(fontset, c, form, to) \ | |
352 | (EQ (fontset, Vdefault_fontset) \ | |
353 | ? char_table_ref_and_range (fontset, c, &from, &to) \ | |
354 | : fontset_ref_and_range (fontset, c, &from, &to)) | |
0d407d77 | 355 | |
afe93d01 | 356 | static Lisp_Object |
1d5d7200 | 357 | fontset_ref_and_range (fontset, c, from, to) |
0d407d77 | 358 | Lisp_Object fontset; |
1d5d7200 KH |
359 | int c; |
360 | int *from, *to; | |
0d407d77 | 361 | { |
0d407d77 | 362 | Lisp_Object elt; |
0d407d77 | 363 | |
1d5d7200 KH |
364 | elt = char_table_ref_and_range (fontset, c, from, to); |
365 | if (NILP (elt) && ! EQ (fontset, Vdefault_fontset) | |
366 | /* Don't check Vdefault_fontset for a realized fontset. */ | |
367 | && NILP (FONTSET_BASE (fontset))) | |
06f76f0d | 368 | { |
1d5d7200 | 369 | int from1, to1; |
0d407d77 | 370 | |
1d5d7200 KH |
371 | elt = char_table_ref_and_range (Vdefault_fontset, c, &from1, &to1); |
372 | if (*from < from1) | |
373 | *from = from1; | |
374 | if (*to > to1) | |
375 | *to = to1; | |
06f76f0d | 376 | } |
0d407d77 KH |
377 | return elt; |
378 | } | |
379 | ||
380 | ||
1d5d7200 KH |
381 | /* Set elements of FONTSET for characters in RANGE to the value ELT. |
382 | RANGE is a cons (FROM . TO), where FROM and TO are character codes | |
383 | specifying a range. */ | |
384 | ||
385 | #define FONTSET_SET(fontset, range, elt) \ | |
386 | Fset_char_table_range ((fontset), (range), (elt)) | |
387 | ||
0d407d77 | 388 | |
1d5d7200 | 389 | /* Modify the elements of FONTSET for characters in RANGE by replacing |
6bad8007 | 390 | with ELT or adding ELT. RANGE is a cons (FROM . TO), where FROM |
1d5d7200 KH |
391 | and TO are character codes specifying a range. If ADD is nil, |
392 | replace with ELT, if ADD is `prepend', prepend ELT, otherwise, | |
393 | append ELT. */ | |
394 | ||
cc7b6145 KH |
395 | #define FONTSET_ADD(fontset, range, elt, add) \ |
396 | (NILP (add) \ | |
397 | ? (NILP (range) \ | |
398 | ? (FONTSET_FALLBACK (fontset) = Fmake_vector (make_number (1), (elt))) \ | |
399 | : Fset_char_table_range ((fontset), (range), \ | |
400 | Fmake_vector (make_number (1), (elt)))) \ | |
1d5d7200 | 401 | : fontset_add ((fontset), (range), (elt), (add))) |
0d407d77 | 402 | |
b11a4ed7 | 403 | static Lisp_Object |
1d5d7200 | 404 | fontset_add (fontset, range, elt, add) |
00c4da0f | 405 | Lisp_Object fontset, range, elt, add; |
06f76f0d | 406 | { |
eb36588a KH |
407 | Lisp_Object args[2]; |
408 | int idx = (EQ (add, Qappend) ? 0 : 1); | |
409 | ||
410 | args[1 - idx] = Fmake_vector (make_number (1), elt); | |
411 | ||
412 | if (CONSP (range)) | |
413 | { | |
414 | int from = XINT (XCAR (range)); | |
415 | int to = XINT (XCDR (range)); | |
416 | int from1, to1; | |
417 | ||
418 | do { | |
419 | args[idx] = char_table_ref_and_range (fontset, from, &from1, &to1); | |
420 | if (to < to1) | |
421 | to1 = to; | |
422 | char_table_set_range (fontset, from, to1, | |
423 | NILP (args[idx]) ? args[1 - idx] | |
424 | : Fvconcat (2, args)); | |
425 | from = to1 + 1; | |
426 | } while (from < to); | |
427 | } | |
428 | else | |
429 | { | |
430 | args[idx] = FONTSET_FALLBACK (fontset); | |
431 | FONTSET_FALLBACK (fontset) | |
432 | = NILP (args[idx]) ? args[1 - idx] : Fvconcat (2, args); | |
433 | } | |
b11a4ed7 | 434 | return Qnil; |
1d5d7200 KH |
435 | } |
436 | ||
437 | ||
438 | /* Update FONTSET_ELEMENT which has this form: | |
7e1a1cd9 KH |
439 | [CHARSET-ORDERED-LIST-TICK PREFERRED-CHARSET-ID PREFERRED-RFONT-DEF |
440 | RFONT-DEF0 RFONT-DEF1 ...]. | |
441 | Reorder RFONT-DEFs according to the current order of charset | |
442 | (Vcharset_ordered_list), and update CHARSET-ORDERED-LIST-TICK to | |
1d5d7200 | 443 | the latest value. */ |
0d407d77 KH |
444 | |
445 | static void | |
1d5d7200 KH |
446 | reorder_font_vector (fontset_element) |
447 | Lisp_Object fontset_element; | |
448 | { | |
0fdf26e6 | 449 | Lisp_Object list, *new_vec; |
6bad8007 | 450 | Lisp_Object font_def; |
1d5d7200 KH |
451 | int size; |
452 | int *charset_id_table; | |
453 | int i, idx; | |
454 | ||
6bad8007 KH |
455 | ASET (fontset_element, 0, make_number (charset_ordered_list_tick)); |
456 | size = ASIZE (fontset_element) - 3; | |
457 | if (size <= 1) | |
7e1a1cd9 | 458 | /* No need to reorder VEC. */ |
1d5d7200 KH |
459 | return; |
460 | charset_id_table = (int *) alloca (sizeof (int) * size); | |
461 | new_vec = (Lisp_Object *) alloca (sizeof (Lisp_Object) * size); | |
6bad8007 KH |
462 | |
463 | /* At first, extract ENCODING (a chaset ID) from each FONT-DEF. | |
464 | FONT-DEF has this form: | |
465 | [FACE-ID FONT-INDEX [ FONT-SPEC ENCODING REPERTORY ]] */ | |
1d5d7200 | 466 | for (i = 0; i < size; i++) |
6bad8007 KH |
467 | { |
468 | font_def = AREF (fontset_element, i + 3); | |
ae54cb3c KH |
469 | if (VECTORP (AREF (font_def, 2)) |
470 | && INTEGERP (AREF (AREF (font_def, 2), 1))) | |
02dacbbc KH |
471 | charset_id_table[i] = XINT (AREF (AREF (font_def, 2), 1)); |
472 | else | |
473 | charset_id_table[i] = -1; | |
6bad8007 | 474 | } |
1d5d7200 | 475 | |
6bad8007 KH |
476 | /* Then, store FONT-DEFs in NEW_VEC in the correct order. */ |
477 | for (idx = 0, list = Vcharset_ordered_list; | |
478 | idx < size && CONSP (list); list = XCDR (list)) | |
06f76f0d | 479 | { |
1d5d7200 KH |
480 | for (i = 0; i < size; i++) |
481 | if (charset_id_table[i] == XINT (XCAR (list))) | |
6bad8007 | 482 | new_vec[idx++] = AREF (fontset_element, i + 3); |
06f76f0d | 483 | } |
02dacbbc KH |
484 | for (i = 0; i < size; i++) |
485 | if (charset_id_table[i] < 0) | |
486 | new_vec[idx++] = AREF (fontset_element, i + 3); | |
0d407d77 | 487 | |
6bad8007 | 488 | /* At last, update FONT-DEFs. */ |
1d5d7200 | 489 | for (i = 0; i < size; i++) |
6bad8007 | 490 | ASET (fontset_element, i + 3, new_vec[i]); |
1d5d7200 KH |
491 | } |
492 | ||
493 | ||
494 | /* Load a font matching the font related attributes in FACE->lface and | |
495 | font pattern in FONT_DEF of FONTSET, and return an index of the | |
496 | font. FONT_DEF has this form: | |
497 | [ FONT-SPEC ENCODING REPERTORY ] | |
498 | If REPERTORY is nil, generate a char-table representing the font | |
499 | repertory by looking into the font itself. */ | |
500 | ||
501 | static int | |
502 | load_font_get_repertory (f, face, font_def, fontset) | |
503 | FRAME_PTR f; | |
504 | struct face *face; | |
505 | Lisp_Object font_def; | |
506 | Lisp_Object fontset; | |
507 | { | |
508 | char *font_name; | |
509 | struct font_info *font_info; | |
f7a9f116 | 510 | int charset; |
1d5d7200 | 511 | |
8f924df7 | 512 | font_name = choose_face_font (f, face->lface, AREF (font_def, 0), NULL); |
fb78e2ed | 513 | charset = XINT (AREF (font_def, 1)); |
f7a9f116 | 514 | if (! (font_info = fs_load_font (f, font_name, charset))) |
1d5d7200 KH |
515 | return -1; |
516 | ||
517 | if (NILP (AREF (font_def, 2)) | |
518 | && NILP (Fassq (make_number (font_info->font_idx), | |
519 | FONTSET_REPERTORY (fontset)))) | |
520 | { | |
521 | /* We must look into the font to get the correct repertory as a | |
522 | char-table. */ | |
523 | Lisp_Object repertory; | |
524 | ||
525 | repertory = (*get_font_repertory_func) (f, font_info); | |
526 | FONTSET_REPERTORY (fontset) | |
527 | = Fcons (Fcons (make_number (font_info->font_idx), repertory), | |
8f924df7 | 528 | FONTSET_REPERTORY (fontset)); |
06f76f0d | 529 | } |
1d5d7200 KH |
530 | |
531 | return font_info->font_idx; | |
0d407d77 KH |
532 | } |
533 | ||
1c82b4b3 KH |
534 | static Lisp_Object fontset_find_font P_ ((Lisp_Object, int, struct face *, |
535 | int, int)); | |
0d407d77 | 536 | |
7e1a1cd9 KH |
537 | /* Return RFONT-DEF (vector) in the realized fontset FONTSET for the |
538 | character C. If the corresponding font is not yet opened, open it | |
539 | (if FACE is not NULL) or return Qnil (if FACE is NULL). | |
1c82b4b3 KH |
540 | If no proper font is found for C, return Qnil. |
541 | ID is a charset-id that must be preferred, or -1 meaning no | |
542 | preference. | |
543 | If FALLBACK if nonzero, search only fallback fonts. */ | |
0d407d77 | 544 | |
7e1a1cd9 | 545 | static Lisp_Object |
1c82b4b3 | 546 | fontset_find_font (fontset, c, face, id, fallback) |
0d407d77 KH |
547 | Lisp_Object fontset; |
548 | int c; | |
1d5d7200 | 549 | struct face *face; |
1c82b4b3 | 550 | int id, fallback; |
0d407d77 | 551 | { |
ae54cb3c | 552 | Lisp_Object base_fontset, elt, vec, font_def; |
1d5d7200 KH |
553 | int i, from, to; |
554 | int font_idx; | |
555 | FRAME_PTR f = XFRAME (FONTSET_FRAME (fontset)); | |
0d407d77 | 556 | |
d6aaac9e | 557 | base_fontset = FONTSET_BASE (fontset); |
1c82b4b3 KH |
558 | if (! fallback) |
559 | vec = CHAR_TABLE_REF (fontset, c); | |
560 | else | |
561 | vec = FONTSET_FALLBACK (fontset); | |
cc7b6145 | 562 | if (NILP (vec)) |
1d5d7200 | 563 | { |
1c82b4b3 | 564 | /* We have not yet decided a font for C. */ |
d6aaac9e | 565 | Lisp_Object range; |
1d5d7200 KH |
566 | |
567 | if (! face) | |
7e1a1cd9 | 568 | return Qnil; |
1c82b4b3 KH |
569 | if (! fallback) |
570 | elt = FONTSET_REF_AND_RANGE (base_fontset, c, from, to); | |
571 | else | |
572 | elt = FONTSET_FALLBACK (base_fontset); | |
1d5d7200 KH |
573 | range = Fcons (make_number (from), make_number (to)); |
574 | if (NILP (elt)) | |
575 | { | |
1c82b4b3 | 576 | /* Qt means we have no font for characters of this range. */ |
cc7b6145 | 577 | vec = Qt; |
1d5d7200 | 578 | } |
02dacbbc | 579 | else |
1d5d7200 | 580 | { |
1c82b4b3 KH |
581 | /* Build a vector [ -1 -1 nil NEW-ELT0 NEW-ELT1 NEW-ELT2 ... ], |
582 | where the first -1 is to force reordering of NEW-ELTn, | |
583 | NEW-ELTn is [nil nil AREF (elt, n) nil]. */ | |
8aa07a8d | 584 | #ifdef USE_FONT_BACKEND |
1c82b4b3 KH |
585 | if (! fallback |
586 | && enable_font_backend | |
587 | && EQ (base_fontset, Vdefault_fontset)) | |
4582742d KH |
588 | /* Extra one element is for an automatically added |
589 | font-def specifying only a script. */ | |
1c82b4b3 | 590 | vec = Fmake_vector (make_number (ASIZE (elt) + 4), Qnil); |
8aa07a8d | 591 | else |
1c82b4b3 KH |
592 | #endif /* not USE_FONT_BACKEND */ |
593 | vec = Fmake_vector (make_number (ASIZE (elt) + 3), Qnil); | |
594 | ASET (vec, 0, make_number (-1)); | |
595 | ASET (vec, 1, make_number (-1)); | |
596 | for (i = 0; i < ASIZE (elt); i++) | |
597 | { | |
598 | Lisp_Object tmp; | |
599 | ||
600 | tmp = Fmake_vector (make_number (5), Qnil); | |
601 | ASET (tmp, 2, AREF (elt, i)); | |
602 | ASET (vec, 3 + i, tmp); | |
603 | } | |
02dacbbc | 604 | #ifdef USE_FONT_BACKEND |
1c82b4b3 KH |
605 | if (! fallback |
606 | && enable_font_backend | |
607 | && EQ (base_fontset, Vdefault_fontset)) | |
608 | { | |
ae54cb3c | 609 | Lisp_Object script, font_spec; |
1c82b4b3 KH |
610 | |
611 | script = CHAR_TABLE_REF (Vchar_script_table, c); | |
612 | if (NILP (script)) | |
613 | script = intern ("latin"); | |
614 | font_spec = Ffont_spec (0, NULL); | |
615 | ASET (font_spec, FONT_REGISTRY_INDEX, Qiso10646_1); | |
616 | ASET (font_spec, FONT_EXTRA_INDEX, | |
617 | Fcons (Fcons (QCscript, script), Qnil)); | |
ae54cb3c KH |
618 | font_def = Fmake_vector (make_number (3), Qnil); |
619 | ASET (font_def, 0, font_spec); | |
620 | elt = Fmake_vector (make_number (5), Qnil); | |
621 | ASET (elt, 2, font_def); | |
622 | ASET (vec, 3 + i, elt); | |
1c82b4b3 | 623 | } |
02dacbbc KH |
624 | #endif /* USE_FONT_BACKEND */ |
625 | ||
1c82b4b3 KH |
626 | /* Then store it in the fontset. */ |
627 | if (! fallback) | |
628 | FONTSET_SET (fontset, range, vec); | |
629 | else | |
630 | FONTSET_FALLBACK (fontset) = vec; | |
631 | } | |
1d5d7200 | 632 | } |
1c82b4b3 KH |
633 | if (EQ (vec, Qt)) |
634 | return Qnil; | |
0d407d77 | 635 | |
6bad8007 | 636 | if (XINT (AREF (vec, 0)) != charset_ordered_list_tick) |
1d5d7200 KH |
637 | /* The priority of charsets is changed after we selected a face |
638 | for C last time. */ | |
6bad8007 KH |
639 | reorder_font_vector (vec); |
640 | ||
641 | if (id < 0) | |
642 | i = 3; | |
643 | else if (id == XFASTINT (AREF (vec, 1))) | |
644 | i = 2; | |
645 | else | |
646 | { | |
647 | ASET (vec, 1, make_number (id)); | |
648 | for (i = 3; i < ASIZE (vec); i++) | |
649 | if (id == XFASTINT (AREF (AREF (AREF (vec, i), 2), 1))) | |
650 | break; | |
651 | if (i < ASIZE (vec)) | |
652 | { | |
653 | ASET (vec, 2, AREF (vec, i)); | |
654 | i = 2; | |
655 | } | |
656 | else | |
657 | { | |
658 | ASET (vec, 2, Qnil); | |
659 | i = 3; | |
660 | } | |
661 | } | |
1d5d7200 | 662 | |
7e1a1cd9 | 663 | /* Find the first available font in the vector of RFONT-DEF. */ |
6bad8007 | 664 | for (; i < ASIZE (vec); i++) |
0d407d77 | 665 | { |
1d5d7200 | 666 | elt = AREF (vec, i); |
6bad8007 KH |
667 | if (NILP (elt)) |
668 | continue; | |
7e1a1cd9 | 669 | /* ELT == [ FACE-ID FONT-INDEX FONT-DEF OPENED-FONT-NAME ] */ |
1d5d7200 KH |
670 | if (INTEGERP (AREF (elt, 1)) && XINT (AREF (elt, 1)) < 0) |
671 | /* We couldn't open this font last time. */ | |
672 | continue; | |
673 | ||
7e1a1cd9 KH |
674 | if (!face && NILP (AREF (elt, 1))) |
675 | /* We have not yet opened the font. */ | |
676 | return Qnil; | |
1d5d7200 | 677 | |
7e1a1cd9 KH |
678 | font_def = AREF (elt, 2); |
679 | /* FONT_DEF == [ FONT-SPEC ENCODING REPERTORY ] */ | |
8aa07a8d KH |
680 | |
681 | #ifdef USE_FONT_BACKEND | |
682 | if (enable_font_backend) | |
683 | { | |
684 | /* ELT == [ FACE-ID FONT-INDEX FONT-DEF FONT-ENTITY FONT-OBJECT ] */ | |
685 | Lisp_Object font_entity = AREF (elt, 3); | |
686 | Lisp_Object font_object = AREF (elt, 4); | |
4582742d | 687 | Lisp_Object font_spec = AREF (font_def, 0); |
8aa07a8d KH |
688 | int has_char; |
689 | ||
4582742d | 690 | if (NILP (font_entity)) |
8aa07a8d | 691 | { |
4582742d | 692 | if (! FONT_SPEC_P (font_spec)) |
8aa07a8d | 693 | { |
4582742d KH |
694 | /* FONT_SPEC is FONT-NAME or (FAMILY . REGISTRY). */ |
695 | font_spec = Ffont_spec (0, NULL); | |
696 | if (STRINGP (AREF (font_def, 0))) | |
697 | font_merge_old_spec (AREF (font_def, 0), Qnil, Qnil, | |
698 | font_spec); | |
699 | else | |
700 | { | |
701 | Lisp_Object family = AREF (AREF (font_def, 0), 0); | |
702 | Lisp_Object registry = AREF (AREF (font_def, 0), 5);; | |
703 | ||
704 | font_merge_old_spec (Qnil, family, registry, font_spec); | |
705 | } | |
706 | ASET (font_def, 0, font_spec); | |
8aa07a8d | 707 | } |
4582742d | 708 | font_entity = font_find_for_lface (f, face->lface, font_spec); |
8aa07a8d | 709 | ASET (elt, 3, font_entity); |
4582742d KH |
710 | if (NILP (font_entity)) |
711 | { | |
712 | ASET (elt, 1, make_number (-1)); | |
713 | continue; | |
714 | } | |
715 | font_object = Qnil; | |
8aa07a8d KH |
716 | } |
717 | has_char = font_has_char (f, font_entity, c); | |
718 | if (has_char == 0) | |
719 | continue; | |
8aa07a8d KH |
720 | if (NILP (font_object)) |
721 | { | |
4582742d KH |
722 | font_object = font_open_for_lface (f, font_entity, |
723 | face->lface, font_spec); | |
724 | ASET (elt, 4, font_object); | |
725 | if (NILP (font_object)) | |
726 | { | |
727 | ASET (elt, 1, make_number (-1)); | |
728 | continue; | |
729 | } | |
8aa07a8d KH |
730 | } |
731 | ASET (elt, 1, make_number (0)); | |
732 | ASET (elt, 4, font_object); | |
733 | if (has_char < 0 | |
734 | && font_encode_char (font_object, c) == FONT_INVALID_CODE) | |
735 | continue; | |
736 | } | |
737 | else | |
738 | #endif /* USE_FONT_BACKEND */ | |
739 | ||
1d5d7200 KH |
740 | if (INTEGERP (AREF (font_def, 2))) |
741 | { | |
742 | /* The repertory is specified by charset ID. */ | |
743 | struct charset *charset | |
744 | = CHARSET_FROM_ID (XINT (AREF (font_def, 2))); | |
745 | ||
746 | if (! CHAR_CHARSET_P (c, charset)) | |
d6aaac9e | 747 | /* This font can't display C. */ |
1d5d7200 KH |
748 | continue; |
749 | } | |
57e13af9 KH |
750 | else if (CHAR_TABLE_P (AREF (font_def, 2))) |
751 | { | |
752 | /* The repertory is specified by a char table. */ | |
753 | if (NILP (CHAR_TABLE_REF (AREF (font_def, 2), c))) | |
754 | /* This font can't display C. */ | |
755 | continue; | |
756 | } | |
1d5d7200 KH |
757 | else |
758 | { | |
759 | Lisp_Object slot; | |
760 | ||
761 | if (! INTEGERP (AREF (elt, 1))) | |
762 | { | |
763 | /* We have not yet opened a font matching this spec. | |
764 | Open the best matching font now and register the | |
765 | repertory. */ | |
7e1a1cd9 KH |
766 | struct font_info *font_info; |
767 | ||
1d5d7200 KH |
768 | font_idx = load_font_get_repertory (f, face, font_def, fontset); |
769 | ASET (elt, 1, make_number (font_idx)); | |
770 | if (font_idx < 0) | |
771 | /* This means that we couldn't find a font matching | |
772 | FONT_DEF. */ | |
773 | continue; | |
7e1a1cd9 KH |
774 | font_info = (*get_font_info_func) (f, font_idx); |
775 | ASET (elt, 3, build_string (font_info->full_name)); | |
1d5d7200 KH |
776 | } |
777 | ||
778 | slot = Fassq (AREF (elt, 1), FONTSET_REPERTORY (fontset)); | |
7e1a1cd9 | 779 | xassert (CONSP (slot)); |
1d5d7200 | 780 | if (NILP (CHAR_TABLE_REF (XCDR (slot), c))) |
7e1a1cd9 | 781 | /* This font can't display C. */ |
1d5d7200 KH |
782 | continue; |
783 | } | |
784 | ||
785 | /* Now we have decided to use this font spec to display C. */ | |
7e1a1cd9 | 786 | if (! INTEGERP (AREF (elt, 1))) |
1d5d7200 KH |
787 | { |
788 | /* But not yet opened the best matching font. */ | |
7e1a1cd9 KH |
789 | struct font_info *font_info; |
790 | ||
1d5d7200 KH |
791 | font_idx = load_font_get_repertory (f, face, font_def, fontset); |
792 | ASET (elt, 1, make_number (font_idx)); | |
793 | if (font_idx < 0) | |
7e1a1cd9 | 794 | /* Can't open it. Try the other one. */ |
1d5d7200 | 795 | continue; |
7e1a1cd9 KH |
796 | font_info = (*get_font_info_func) (f, font_idx); |
797 | ASET (elt, 3, build_string (font_info->full_name)); | |
1d5d7200 KH |
798 | } |
799 | ||
800 | /* Now we have the opened font. */ | |
7e1a1cd9 | 801 | return elt; |
0d407d77 | 802 | } |
1c82b4b3 KH |
803 | return Qnil; |
804 | } | |
0d407d77 | 805 | |
cc7b6145 | 806 | |
1c82b4b3 KH |
807 | static Lisp_Object |
808 | fontset_font (fontset, c, face, id) | |
809 | Lisp_Object fontset; | |
810 | int c; | |
811 | struct face *face; | |
812 | int id; | |
813 | { | |
814 | Lisp_Object rfont_def; | |
815 | Lisp_Object base_fontset; | |
cc7b6145 | 816 | |
1c82b4b3 KH |
817 | /* Try a font-group for C. */ |
818 | rfont_def = fontset_find_font (fontset, c, face, id, 0); | |
819 | if (! NILP (rfont_def)) | |
820 | return rfont_def; | |
821 | base_fontset = FONTSET_BASE (fontset); | |
822 | /* Try a font-group for C of the default fontset. */ | |
d6aaac9e | 823 | if (! EQ (base_fontset, Vdefault_fontset)) |
452a78e0 | 824 | { |
eb36588a KH |
825 | if (NILP (FONTSET_DEFAULT (fontset))) |
826 | FONTSET_DEFAULT (fontset) | |
452a78e0 | 827 | = make_fontset (FONTSET_FRAME (fontset), Qnil, Vdefault_fontset); |
1c82b4b3 | 828 | rfont_def = fontset_find_font (FONTSET_DEFAULT (fontset), c, face, id, 0); |
0d407d77 | 829 | } |
1c82b4b3 KH |
830 | if (! NILP (rfont_def)) |
831 | return rfont_def; | |
832 | /* Try a fallback font-group. */ | |
833 | rfont_def = fontset_find_font (fontset, c, face, id, 1); | |
834 | if (! NILP (rfont_def)) | |
835 | return rfont_def; | |
836 | /* Try a fallback font-group of the default fontset . */ | |
837 | if (! EQ (base_fontset, Vdefault_fontset)) | |
838 | rfont_def = fontset_find_font (FONTSET_DEFAULT (fontset), c, face, id, 1); | |
839 | return rfont_def; | |
0d407d77 KH |
840 | } |
841 | ||
0d407d77 | 842 | /* Return a newly created fontset with NAME. If BASE is nil, make a |
06f76f0d | 843 | base fontset. Otherwise make a realized fontset whose base is |
0d407d77 KH |
844 | BASE. */ |
845 | ||
846 | static Lisp_Object | |
847 | make_fontset (frame, name, base) | |
848 | Lisp_Object frame, name, base; | |
4ed46869 | 849 | { |
1337ac77 | 850 | Lisp_Object fontset; |
0d407d77 KH |
851 | int size = ASIZE (Vfontset_table); |
852 | int id = next_fontset_id; | |
0d407d77 KH |
853 | |
854 | /* Find a free slot in Vfontset_table. Usually, next_fontset_id is | |
855 | the next available fontset ID. So it is expected that this loop | |
856 | terminates quickly. In addition, as the last element of | |
fc8865fc | 857 | Vfontset_table is always nil, we don't have to check the range of |
0d407d77 KH |
858 | id. */ |
859 | while (!NILP (AREF (Vfontset_table, id))) id++; | |
860 | ||
861 | if (id + 1 == size) | |
63655c83 | 862 | Vfontset_table = larger_vector (Vfontset_table, size + 32, Qnil); |
4ed46869 | 863 | |
11d9bd93 | 864 | fontset = Fmake_char_table (Qfontset, Qnil); |
0d407d77 KH |
865 | |
866 | FONTSET_ID (fontset) = make_number (id); | |
06f76f0d KH |
867 | if (NILP (base)) |
868 | { | |
869 | FONTSET_NAME (fontset) = name; | |
870 | } | |
871 | else | |
872 | { | |
873 | FONTSET_NAME (fontset) = Qnil; | |
874 | FONTSET_FRAME (fontset) = frame; | |
875 | FONTSET_BASE (fontset) = base; | |
876 | } | |
0d407d77 | 877 | |
06f76f0d | 878 | ASET (Vfontset_table, id, fontset); |
0d407d77 KH |
879 | next_fontset_id = id + 1; |
880 | return fontset; | |
4ed46869 KH |
881 | } |
882 | ||
0d407d77 | 883 | |
2cdd4f88 MB |
884 | /* Set the ASCII font of the default fontset to FONTNAME if that is |
885 | not yet set. */ | |
886 | void | |
887 | set_default_ascii_font (fontname) | |
0d407d77 KH |
888 | Lisp_Object fontname; |
889 | { | |
d7fb7b91 | 890 | if (! STRINGP (FONTSET_ASCII (Vdefault_fontset))) |
2cdd4f88 MB |
891 | { |
892 | int id = fs_query_fontset (fontname, 2); | |
893 | ||
894 | if (id >= 0) | |
d7fb7b91 KH |
895 | fontname = FONTSET_ASCII (FONTSET_FROM_ID (id)); |
896 | FONTSET_ASCII (Vdefault_fontset)= fontname; | |
2cdd4f88 | 897 | } |
0d407d77 KH |
898 | } |
899 | ||
900 | \f | |
1d5d7200 | 901 | /********** INTERFACES TO xfaces.c, xfns.c, and dispextern.h **********/ |
0d407d77 | 902 | |
1d5d7200 | 903 | /* Return the name of the fontset who has ID. */ |
0d407d77 KH |
904 | |
905 | Lisp_Object | |
906 | fontset_name (id) | |
907 | int id; | |
908 | { | |
909 | Lisp_Object fontset; | |
06f76f0d | 910 | |
0d407d77 KH |
911 | fontset = FONTSET_FROM_ID (id); |
912 | return FONTSET_NAME (fontset); | |
913 | } | |
914 | ||
915 | ||
1d5d7200 | 916 | /* Return the ASCII font name of the fontset who has ID. */ |
0d407d77 KH |
917 | |
918 | Lisp_Object | |
919 | fontset_ascii (id) | |
920 | int id; | |
921 | { | |
922 | Lisp_Object fontset, elt; | |
06f76f0d | 923 | |
0d407d77 KH |
924 | fontset= FONTSET_FROM_ID (id); |
925 | elt = FONTSET_ASCII (fontset); | |
8aa07a8d KH |
926 | #ifdef USE_FONT_BACKEND |
927 | if (CONSP (elt)) | |
928 | elt = XCAR (elt); | |
929 | #endif /* USE_FONT_BACKEND */ | |
1d5d7200 KH |
930 | /* It is assured that ELT is always a string (i.e. fontname |
931 | pattern). */ | |
932 | return elt; | |
0d407d77 KH |
933 | } |
934 | ||
935 | ||
06f76f0d KH |
936 | /* Free fontset of FACE defined on frame F. Called from |
937 | free_realized_face. */ | |
0d407d77 | 938 | |
4ed46869 | 939 | void |
0d407d77 KH |
940 | free_face_fontset (f, face) |
941 | FRAME_PTR f; | |
942 | struct face *face; | |
4ed46869 | 943 | { |
452a78e0 KH |
944 | Lisp_Object fontset; |
945 | ||
946 | fontset = AREF (Vfontset_table, face->fontset); | |
947 | xassert (!NILP (fontset) && ! BASE_FONTSET_P (fontset)); | |
948 | xassert (f == XFRAME (FONTSET_FRAME (fontset))); | |
1d5d7200 | 949 | ASET (Vfontset_table, face->fontset, Qnil); |
06f76f0d KH |
950 | if (face->fontset < next_fontset_id) |
951 | next_fontset_id = face->fontset; | |
eb36588a | 952 | if (! NILP (FONTSET_DEFAULT (fontset))) |
452a78e0 | 953 | { |
e1a14cdc | 954 | int id = XINT (FONTSET_ID (FONTSET_DEFAULT (fontset))); |
452a78e0 KH |
955 | |
956 | fontset = AREF (Vfontset_table, id); | |
957 | xassert (!NILP (fontset) && ! BASE_FONTSET_P (fontset)); | |
958 | xassert (f == XFRAME (FONTSET_FRAME (fontset))); | |
959 | ASET (Vfontset_table, id, Qnil); | |
960 | if (id < next_fontset_id) | |
961 | next_fontset_id = face->fontset; | |
962 | } | |
0d407d77 | 963 | } |
18998710 | 964 | |
0d407d77 | 965 | |
e0f24100 | 966 | /* Return 1 if FACE is suitable for displaying character C. |
0d407d77 | 967 | Otherwise return 0. Called from the macro FACE_SUITABLE_FOR_CHAR_P |
06f76f0d | 968 | when C is not an ASCII character. */ |
0d407d77 KH |
969 | |
970 | int | |
971 | face_suitable_for_char_p (face, c) | |
972 | struct face *face; | |
973 | int c; | |
974 | { | |
7e1a1cd9 | 975 | Lisp_Object fontset, rfont_def; |
0d407d77 | 976 | |
0d407d77 | 977 | fontset = FONTSET_FROM_ID (face->fontset); |
7e1a1cd9 KH |
978 | rfont_def = fontset_font (fontset, c, NULL, -1); |
979 | return (VECTORP (rfont_def) | |
980 | && INTEGERP (AREF (rfont_def, 0)) | |
981 | && face->id == XINT (AREF (rfont_def, 0))); | |
0d407d77 KH |
982 | } |
983 | ||
984 | ||
985 | /* Return ID of face suitable for displaying character C on frame F. | |
1d5d7200 KH |
986 | FACE must be reazlied for ASCII characters in advance. Called from |
987 | the macro FACE_FOR_CHAR. */ | |
0d407d77 KH |
988 | |
989 | int | |
6bad8007 | 990 | face_for_char (f, face, c, pos, object) |
0d407d77 KH |
991 | FRAME_PTR f; |
992 | struct face *face; | |
6bad8007 KH |
993 | int c, pos; |
994 | Lisp_Object object; | |
0d407d77 | 995 | { |
7e1a1cd9 KH |
996 | Lisp_Object fontset, charset, rfont_def; |
997 | int face_id; | |
6bad8007 | 998 | int id; |
1d5d7200 KH |
999 | |
1000 | if (ASCII_CHAR_P (c)) | |
1001 | return face->ascii_face->id; | |
0d407d77 KH |
1002 | |
1003 | xassert (fontset_id_valid_p (face->fontset)); | |
1004 | fontset = FONTSET_FROM_ID (face->fontset); | |
1005 | xassert (!BASE_FONTSET_P (fontset)); | |
6bad8007 KH |
1006 | if (pos < 0) |
1007 | id = -1; | |
1008 | else | |
1009 | { | |
1010 | charset = Fget_char_property (make_number (pos), Qcharset, object); | |
1011 | if (NILP (charset)) | |
1012 | id = -1; | |
1013 | else if (CHARSETP (charset)) | |
1014 | id = XINT (CHARSET_SYMBOL_ID (charset)); | |
1015 | } | |
7e1a1cd9 KH |
1016 | rfont_def = fontset_font (fontset, c, face, id); |
1017 | if (VECTORP (rfont_def)) | |
1018 | { | |
8aa07a8d KH |
1019 | #ifdef USE_FONT_BACKEND |
1020 | if (enable_font_backend | |
1021 | && NILP (AREF (rfont_def, 0))) | |
1022 | { | |
1023 | struct font *font = XSAVE_VALUE (AREF (rfont_def, 4))->pointer; | |
1024 | ||
1025 | face_id = face_for_font (f, font, face); | |
1026 | ASET (rfont_def, 0, make_number (face_id)); | |
1027 | } | |
1028 | else | |
1029 | #endif /* USE_FONT_BACKEND */ | |
7e1a1cd9 KH |
1030 | if (NILP (AREF (rfont_def, 0))) |
1031 | { | |
1032 | /* We have not yet made a realized face that uses this font. */ | |
1033 | int font_idx = XINT (AREF (rfont_def, 1)); | |
1034 | ||
1035 | face_id = lookup_non_ascii_face (f, font_idx, face); | |
1036 | ASET (rfont_def, 0, make_number (face_id)); | |
1037 | } | |
1038 | return XINT (AREF (rfont_def, 0)); | |
1039 | } | |
1040 | ||
1041 | if (NILP (FONTSET_NOFONT_FACE (fontset))) | |
1042 | { | |
1043 | face_id = lookup_non_ascii_face (f, -1, face); | |
1044 | FONTSET_NOFONT_FACE (fontset) = make_number (face_id); | |
1045 | } | |
1046 | return XINT (FONTSET_NOFONT_FACE (fontset)); | |
0d407d77 KH |
1047 | } |
1048 | ||
1049 | ||
1050 | /* Make a realized fontset for ASCII face FACE on frame F from the | |
1051 | base fontset BASE_FONTSET_ID. If BASE_FONTSET_ID is -1, use the | |
1052 | default fontset as the base. Value is the id of the new fontset. | |
1053 | Called from realize_x_face. */ | |
1054 | ||
1055 | int | |
1d5d7200 | 1056 | make_fontset_for_ascii_face (f, base_fontset_id, face) |
0d407d77 KH |
1057 | FRAME_PTR f; |
1058 | int base_fontset_id; | |
1d5d7200 | 1059 | struct face *face; |
0d407d77 | 1060 | { |
1337ac77 | 1061 | Lisp_Object base_fontset, fontset, frame; |
0d407d77 KH |
1062 | |
1063 | XSETFRAME (frame, f); | |
1064 | if (base_fontset_id >= 0) | |
1065 | { | |
1066 | base_fontset = FONTSET_FROM_ID (base_fontset_id); | |
1067 | if (!BASE_FONTSET_P (base_fontset)) | |
1068 | base_fontset = FONTSET_BASE (base_fontset); | |
1069 | xassert (BASE_FONTSET_P (base_fontset)); | |
1d5d7200 KH |
1070 | if (! BASE_FONTSET_P (base_fontset)) |
1071 | abort (); | |
4ed46869 | 1072 | } |
0d407d77 KH |
1073 | else |
1074 | base_fontset = Vdefault_fontset; | |
1075 | ||
1076 | fontset = make_fontset (frame, Qnil, base_fontset); | |
1d5d7200 | 1077 | { |
1c82b4b3 | 1078 | Lisp_Object elt, rfont_def, val; |
1d5d7200 KH |
1079 | |
1080 | elt = FONTSET_REF (base_fontset, 0); | |
7e1a1cd9 | 1081 | xassert (VECTORP (elt) && ASIZE (elt) > 0); |
8aa07a8d KH |
1082 | #ifdef USE_FONT_BACKEND |
1083 | rfont_def = Fmake_vector (make_number (5), Qnil); | |
1084 | if (enable_font_backend && face->font_info) | |
1085 | { | |
1086 | struct font *font = (struct font *) face->font_info; | |
1087 | ||
1088 | ASET (rfont_def, 3, font->entity); | |
1089 | ASET (rfont_def, 4, font_find_object (font)); | |
1090 | } | |
ce4aada8 KH |
1091 | else |
1092 | #endif /* USE_FONT_BACKEND */ | |
8aa07a8d KH |
1093 | { |
1094 | rfont_def = Fmake_vector (make_number (4), Qnil); | |
1095 | ASET (rfont_def, 3, build_string (face->font_name)); | |
1096 | } | |
7e1a1cd9 KH |
1097 | ASET (rfont_def, 1, make_number (face->font_info_id)); |
1098 | ASET (rfont_def, 2, AREF (elt, 0)); | |
7e1a1cd9 | 1099 | elt = Fmake_vector (make_number (4), Qnil); |
6bad8007 | 1100 | ASET (elt, 0, make_number (charset_ordered_list_tick)); |
7e1a1cd9 KH |
1101 | ASET (elt, 1, make_number (charset_ascii)); |
1102 | ASET (elt, 2, rfont_def); | |
1103 | ASET (elt, 3, rfont_def); | |
1c82b4b3 KH |
1104 | |
1105 | val = Fcons (Qlatin, Qnil); | |
1106 | map_char_table (accumulate_script_ranges, Qnil, Vchar_script_table, val); | |
1107 | for (val = XCDR (val); CONSP (val); val = XCDR (val)) | |
1108 | char_table_set_range (fontset, XINT (XCAR (XCAR (val))), | |
1109 | XINT (XCDR (XCAR (val))), elt); | |
1110 | FONTSET_FALLBACK (fontset) = elt; | |
1d5d7200 | 1111 | } |
f3231837 | 1112 | return XINT (FONTSET_ID (fontset)); |
0d407d77 KH |
1113 | } |
1114 | ||
1115 | ||
97f4db8c AI |
1116 | #if defined(WINDOWSNT) && defined (_MSC_VER) |
1117 | #pragma optimize("", off) | |
1118 | #endif | |
1119 | ||
06f76f0d KH |
1120 | /* Load a font named FONTNAME on frame F. Return a pointer to the |
1121 | struct font_info of the loaded font. If loading fails, return | |
6ab1fb6a KH |
1122 | NULL. CHARSET is an ID of charset to encode characters for this |
1123 | font. If it is -1, find one from Vfont_encoding_alist. */ | |
4ed46869 KH |
1124 | |
1125 | struct font_info * | |
6ab1fb6a | 1126 | fs_load_font (f, fontname, charset) |
4ed46869 | 1127 | FRAME_PTR f; |
4ed46869 | 1128 | char *fontname; |
6ab1fb6a | 1129 | int charset; |
4ed46869 | 1130 | { |
4ed46869 | 1131 | struct font_info *fontp; |
71c54d6f | 1132 | Lisp_Object fullname; |
4ed46869 | 1133 | |
0d407d77 KH |
1134 | if (!fontname) |
1135 | /* No way to get fontname. */ | |
1d5d7200 | 1136 | return NULL; |
4ed46869 | 1137 | |
06f76f0d | 1138 | fontp = (*load_font_func) (f, fontname, 0); |
6ab1fb6a KH |
1139 | if (! fontp || fontp->charset >= 0) |
1140 | return fontp; | |
4ed46869 | 1141 | |
48728c92 | 1142 | fontname = fontp->full_name; |
71c54d6f | 1143 | fullname = build_string (fontp->full_name); |
4ed46869 | 1144 | |
6ab1fb6a | 1145 | if (charset < 0) |
4ed46869 | 1146 | { |
6ab1fb6a | 1147 | Lisp_Object charset_symbol; |
4ed46869 | 1148 | |
71c54d6f | 1149 | charset_symbol = find_font_encoding (fullname); |
6ab1fb6a KH |
1150 | if (CONSP (charset_symbol)) |
1151 | charset_symbol = XCAR (charset_symbol); | |
8aa07a8d KH |
1152 | if (NILP (charset_symbol)) |
1153 | charset_symbol = Qascii; | |
6ab1fb6a | 1154 | charset = XINT (CHARSET_SYMBOL_ID (charset_symbol)); |
4ed46869 | 1155 | } |
6ab1fb6a | 1156 | fontp->charset = charset; |
1d5d7200 | 1157 | fontp->vertical_centering = 0; |
06f76f0d | 1158 | fontp->font_encoder = NULL; |
727fb790 | 1159 | |
6ab1fb6a | 1160 | if (charset != charset_ascii) |
4ed46869 | 1161 | { |
1d5d7200 KH |
1162 | fontp->vertical_centering |
1163 | = (STRINGP (Vvertical_centering_font_regexp) | |
71c54d6f KH |
1164 | && (fast_string_match_ignore_case |
1165 | (Vvertical_centering_font_regexp, fullname) >= 0)); | |
4ed46869 | 1166 | |
1d5d7200 KH |
1167 | if (find_ccl_program_func) |
1168 | (*find_ccl_program_func) (fontp); | |
4ed46869 KH |
1169 | } |
1170 | ||
4ed46869 KH |
1171 | return fontp; |
1172 | } | |
1173 | ||
97f4db8c AI |
1174 | #if defined(WINDOWSNT) && defined (_MSC_VER) |
1175 | #pragma optimize("", on) | |
1176 | #endif | |
1177 | ||
0d407d77 | 1178 | \f |
6ab1fb6a KH |
1179 | /* Return ENCODING or a cons of ENCODING and REPERTORY of the font |
1180 | FONTNAME. ENCODING is a charset symbol that specifies the encoding | |
1181 | of the font. REPERTORY is a charset symbol or nil. */ | |
1d5d7200 KH |
1182 | |
1183 | ||
8aa07a8d | 1184 | Lisp_Object |
1d5d7200 | 1185 | find_font_encoding (fontname) |
71c54d6f | 1186 | Lisp_Object fontname; |
1d5d7200 KH |
1187 | { |
1188 | Lisp_Object tail, elt; | |
1189 | ||
1190 | for (tail = Vfont_encoding_alist; CONSP (tail); tail = XCDR (tail)) | |
1191 | { | |
1192 | elt = XCAR (tail); | |
1193 | if (CONSP (elt) | |
1194 | && STRINGP (XCAR (elt)) | |
71c54d6f | 1195 | && fast_string_match_ignore_case (XCAR (elt), fontname) >= 0 |
1d5d7200 KH |
1196 | && (SYMBOLP (XCDR (elt)) |
1197 | ? CHARSETP (XCDR (elt)) | |
1198 | : CONSP (XCDR (elt)) && CHARSETP (XCAR (XCDR (elt))))) | |
1199 | return (XCDR (elt)); | |
1200 | } | |
fb78e2ed KH |
1201 | /* We don't know the encoding of this font. Let's assume `ascii'. */ |
1202 | return Qascii; | |
1d5d7200 KH |
1203 | } |
1204 | ||
1205 | ||
4ed46869 KH |
1206 | /* Cache data used by fontset_pattern_regexp. The car part is a |
1207 | pattern string containing at least one wild card, the cdr part is | |
1208 | the corresponding regular expression. */ | |
1209 | static Lisp_Object Vcached_fontset_data; | |
1210 | ||
d5db4077 | 1211 | #define CACHED_FONTSET_NAME (SDATA (XCAR (Vcached_fontset_data))) |
7539e11f | 1212 | #define CACHED_FONTSET_REGEX (XCDR (Vcached_fontset_data)) |
4ed46869 KH |
1213 | |
1214 | /* If fontset name PATTERN contains any wild card, return regular | |
1215 | expression corresponding to PATTERN. */ | |
1216 | ||
0d407d77 | 1217 | static Lisp_Object |
4ed46869 KH |
1218 | fontset_pattern_regexp (pattern) |
1219 | Lisp_Object pattern; | |
1220 | { | |
d5db4077 KR |
1221 | if (!index (SDATA (pattern), '*') |
1222 | && !index (SDATA (pattern), '?')) | |
4ed46869 | 1223 | /* PATTERN does not contain any wild cards. */ |
1c283e35 | 1224 | return Qnil; |
4ed46869 KH |
1225 | |
1226 | if (!CONSP (Vcached_fontset_data) | |
d5db4077 | 1227 | || strcmp (SDATA (pattern), CACHED_FONTSET_NAME)) |
4ed46869 KH |
1228 | { |
1229 | /* We must at first update the cached data. */ | |
6cc06608 | 1230 | unsigned char *regex, *p0, *p1; |
fc1062f5 | 1231 | int ndashes = 0, nstars = 0; |
6cc06608 | 1232 | |
fc1062f5 KH |
1233 | for (p0 = SDATA (pattern); *p0; p0++) |
1234 | { | |
1235 | if (*p0 == '-') | |
1236 | ndashes++; | |
a653f812 | 1237 | else if (*p0 == '*') |
fc1062f5 KH |
1238 | nstars++; |
1239 | } | |
1240 | ||
1241 | /* If PATTERN is not full XLFD we conert "*" to ".*". Otherwise | |
1242 | we convert "*" to "[^-]*" which is much faster in regular | |
1243 | expression matching. */ | |
1244 | if (ndashes < 14) | |
6cc06608 | 1245 | p1 = regex = (unsigned char *) alloca (SBYTES (pattern) + 2 * nstars + 1); |
fc1062f5 | 1246 | else |
6cc06608 | 1247 | p1 = regex = (unsigned char *) alloca (SBYTES (pattern) + 5 * nstars + 1); |
4ed46869 | 1248 | |
1c283e35 | 1249 | *p1++ = '^'; |
6cc06608 | 1250 | for (p0 = SDATA (pattern); *p0; p0++) |
4ed46869 | 1251 | { |
a653f812 | 1252 | if (*p0 == '*') |
4ed46869 | 1253 | { |
fc1062f5 KH |
1254 | if (ndashes < 14) |
1255 | *p1++ = '.'; | |
1256 | else | |
1257 | *p1++ = '[', *p1++ = '^', *p1++ = '-', *p1++ = ']'; | |
1c283e35 | 1258 | *p1++ = '*'; |
4ed46869 | 1259 | } |
1c283e35 | 1260 | else if (*p0 == '?') |
d96d677d | 1261 | *p1++ = '.'; |
1c283e35 KH |
1262 | else |
1263 | *p1++ = *p0; | |
4ed46869 KH |
1264 | } |
1265 | *p1++ = '$'; | |
1266 | *p1++ = 0; | |
1267 | ||
d5db4077 | 1268 | Vcached_fontset_data = Fcons (build_string (SDATA (pattern)), |
4ed46869 KH |
1269 | build_string (regex)); |
1270 | } | |
1271 | ||
1272 | return CACHED_FONTSET_REGEX; | |
1273 | } | |
1274 | ||
0d407d77 | 1275 | /* Return ID of the base fontset named NAME. If there's no such |
a653f812 KH |
1276 | fontset, return -1. NAME_PATTERN specifies how to treat NAME as this: |
1277 | 0: pattern containing '*' and '?' as wildcards | |
1278 | 1: regular expression | |
1279 | 2: literal fontset name | |
1280 | */ | |
0d407d77 KH |
1281 | |
1282 | int | |
a653f812 | 1283 | fs_query_fontset (name, name_pattern) |
0d407d77 | 1284 | Lisp_Object name; |
a653f812 | 1285 | int name_pattern; |
0d407d77 | 1286 | { |
1337ac77 | 1287 | Lisp_Object tem; |
0d407d77 KH |
1288 | int i; |
1289 | ||
1290 | name = Fdowncase (name); | |
a653f812 | 1291 | if (name_pattern != 1) |
0d407d77 KH |
1292 | { |
1293 | tem = Frassoc (name, Vfontset_alias_alist); | |
6bad8007 KH |
1294 | if (NILP (tem)) |
1295 | tem = Fassoc (name, Vfontset_alias_alist); | |
0d407d77 KH |
1296 | if (CONSP (tem) && STRINGP (XCAR (tem))) |
1297 | name = XCAR (tem); | |
a653f812 | 1298 | else if (name_pattern == 0) |
0d407d77 KH |
1299 | { |
1300 | tem = fontset_pattern_regexp (name); | |
1301 | if (STRINGP (tem)) | |
1302 | { | |
1303 | name = tem; | |
a653f812 | 1304 | name_pattern = 1; |
0d407d77 KH |
1305 | } |
1306 | } | |
1307 | } | |
1308 | ||
1309 | for (i = 0; i < ASIZE (Vfontset_table); i++) | |
1310 | { | |
6e1b0d8c | 1311 | Lisp_Object fontset, this_name; |
0d407d77 KH |
1312 | |
1313 | fontset = FONTSET_FROM_ID (i); | |
1314 | if (NILP (fontset) | |
1315 | || !BASE_FONTSET_P (fontset)) | |
1316 | continue; | |
1317 | ||
6e1b0d8c | 1318 | this_name = FONTSET_NAME (fontset); |
a653f812 | 1319 | if (name_pattern == 1 |
6e1b0d8c KH |
1320 | ? fast_string_match (name, this_name) >= 0 |
1321 | : !strcmp (SDATA (name), SDATA (this_name))) | |
0d407d77 KH |
1322 | return i; |
1323 | } | |
1324 | return -1; | |
1325 | } | |
1326 | ||
1327 | ||
727fb790 | 1328 | DEFUN ("query-fontset", Fquery_fontset, Squery_fontset, 1, 2, 0, |
335c5470 PJ |
1329 | doc: /* Return the name of a fontset that matches PATTERN. |
1330 | The value is nil if there is no matching fontset. | |
1331 | PATTERN can contain `*' or `?' as a wildcard | |
1332 | just as X font name matching algorithm allows. | |
1333 | If REGEXPP is non-nil, PATTERN is a regular expression. */) | |
1334 | (pattern, regexpp) | |
727fb790 | 1335 | Lisp_Object pattern, regexpp; |
4ed46869 | 1336 | { |
0d407d77 KH |
1337 | Lisp_Object fontset; |
1338 | int id; | |
4ed46869 KH |
1339 | |
1340 | (*check_window_system_func) (); | |
1341 | ||
b7826503 | 1342 | CHECK_STRING (pattern); |
4ed46869 | 1343 | |
d5db4077 | 1344 | if (SCHARS (pattern) == 0) |
4ed46869 KH |
1345 | return Qnil; |
1346 | ||
0d407d77 KH |
1347 | id = fs_query_fontset (pattern, !NILP (regexpp)); |
1348 | if (id < 0) | |
1349 | return Qnil; | |
4ed46869 | 1350 | |
0d407d77 KH |
1351 | fontset = FONTSET_FROM_ID (id); |
1352 | return FONTSET_NAME (fontset); | |
4ed46869 KH |
1353 | } |
1354 | ||
06f76f0d | 1355 | /* Return a list of base fontset names matching PATTERN on frame F. */ |
4ed46869 KH |
1356 | |
1357 | Lisp_Object | |
1358 | list_fontsets (f, pattern, size) | |
1359 | FRAME_PTR f; | |
1360 | Lisp_Object pattern; | |
1361 | int size; | |
1362 | { | |
1337ac77 | 1363 | Lisp_Object frame, regexp, val; |
0d407d77 | 1364 | int id; |
4ed46869 | 1365 | |
0d407d77 | 1366 | XSETFRAME (frame, f); |
4ed46869 | 1367 | |
0d407d77 | 1368 | regexp = fontset_pattern_regexp (pattern); |
4ed46869 | 1369 | val = Qnil; |
4ed46869 | 1370 | |
0d407d77 KH |
1371 | for (id = 0; id < ASIZE (Vfontset_table); id++) |
1372 | { | |
6e1b0d8c | 1373 | Lisp_Object fontset, name; |
0d407d77 KH |
1374 | |
1375 | fontset = FONTSET_FROM_ID (id); | |
1376 | if (NILP (fontset) | |
1377 | || !BASE_FONTSET_P (fontset) | |
1378 | || !EQ (frame, FONTSET_FRAME (fontset))) | |
1379 | continue; | |
6e1b0d8c | 1380 | name = FONTSET_NAME (fontset); |
0d407d77 | 1381 | |
1d5d7200 | 1382 | if (STRINGP (regexp) |
6e1b0d8c KH |
1383 | ? (fast_string_match (regexp, name) < 0) |
1384 | : strcmp (SDATA (pattern), SDATA (name))) | |
0d407d77 KH |
1385 | continue; |
1386 | ||
0d407d77 | 1387 | val = Fcons (Fcopy_sequence (FONTSET_NAME (fontset)), val); |
4ed46869 KH |
1388 | } |
1389 | ||
1390 | return val; | |
1391 | } | |
1392 | ||
4ed46869 | 1393 | |
8f924df7 | 1394 | /* Free all realized fontsets whose base fontset is BASE. */ |
4ed46869 | 1395 | |
06f76f0d KH |
1396 | static void |
1397 | free_realized_fontsets (base) | |
1398 | Lisp_Object base; | |
1399 | { | |
1400 | int id; | |
4ed46869 | 1401 | |
2f034212 | 1402 | #if 0 |
27e20b2f KH |
1403 | /* For the moment, this doesn't work because free_realized_face |
1404 | doesn't remove FACE from a cache. Until we find a solution, we | |
1405 | suppress this code, and simply use Fclear_face_cache even though | |
1406 | that is not efficient. */ | |
06f76f0d KH |
1407 | BLOCK_INPUT; |
1408 | for (id = 0; id < ASIZE (Vfontset_table); id++) | |
4ed46869 | 1409 | { |
06f76f0d | 1410 | Lisp_Object this = AREF (Vfontset_table, id); |
0d407d77 | 1411 | |
06f76f0d | 1412 | if (EQ (FONTSET_BASE (this), base)) |
0d407d77 | 1413 | { |
06f76f0d | 1414 | Lisp_Object tail; |
4ed46869 | 1415 | |
06f76f0d KH |
1416 | for (tail = FONTSET_FACE_ALIST (this); CONSP (tail); |
1417 | tail = XCDR (tail)) | |
1418 | { | |
1419 | FRAME_PTR f = XFRAME (FONTSET_FRAME (this)); | |
1420 | int face_id = XINT (XCDR (XCAR (tail))); | |
1421 | struct face *face = FACE_FROM_ID (f, face_id); | |
4ed46869 | 1422 | |
06f76f0d KH |
1423 | /* Face THIS itself is also freed by the following call. */ |
1424 | free_realized_face (f, face); | |
1425 | } | |
1426 | } | |
0d407d77 | 1427 | } |
06f76f0d | 1428 | UNBLOCK_INPUT; |
27e20b2f | 1429 | #else /* not 0 */ |
2f034212 KH |
1430 | /* But, we don't have to call Fclear_face_cache if no fontset has |
1431 | been realized from BASE. */ | |
1432 | for (id = 0; id < ASIZE (Vfontset_table); id++) | |
1433 | { | |
1434 | Lisp_Object this = AREF (Vfontset_table, id); | |
1435 | ||
985773c9 | 1436 | if (CHAR_TABLE_P (this) && EQ (FONTSET_BASE (this), base)) |
2f034212 KH |
1437 | { |
1438 | Fclear_face_cache (Qt); | |
1439 | break; | |
1440 | } | |
1441 | } | |
27e20b2f | 1442 | #endif /* not 0 */ |
0d407d77 | 1443 | } |
4ed46869 | 1444 | |
4ed46869 | 1445 | |
0d407d77 KH |
1446 | /* Check validity of NAME as a fontset name and return the |
1447 | corresponding fontset. If not valid, signal an error. | |
1448 | If NAME is t, return Vdefault_fontset. */ | |
1449 | ||
1450 | static Lisp_Object | |
1451 | check_fontset_name (name) | |
1452 | Lisp_Object name; | |
1453 | { | |
1454 | int id; | |
1455 | ||
1456 | if (EQ (name, Qt)) | |
1457 | return Vdefault_fontset; | |
4ed46869 | 1458 | |
b7826503 | 1459 | CHECK_STRING (name); |
a653f812 KH |
1460 | /* First try NAME as literal. */ |
1461 | id = fs_query_fontset (name, 2); | |
1462 | if (id < 0) | |
1463 | /* For backward compatibility, try again NAME as pattern. */ | |
1464 | id = fs_query_fontset (name, 0); | |
0d407d77 | 1465 | if (id < 0) |
d5db4077 | 1466 | error ("Fontset `%s' does not exist", SDATA (name)); |
0d407d77 KH |
1467 | return FONTSET_FROM_ID (id); |
1468 | } | |
4ed46869 | 1469 | |
1d5d7200 KH |
1470 | static void |
1471 | accumulate_script_ranges (arg, range, val) | |
1472 | Lisp_Object arg, range, val; | |
1473 | { | |
1474 | if (EQ (XCAR (arg), val)) | |
1475 | { | |
1476 | if (CONSP (range)) | |
1477 | XSETCDR (arg, Fcons (Fcons (XCAR (range), XCDR (range)), XCDR (arg))); | |
1478 | else | |
1479 | XSETCDR (arg, Fcons (Fcons (range, range), XCDR (arg))); | |
1480 | } | |
1481 | } | |
1482 | ||
1483 | ||
d6aaac9e KH |
1484 | /* Return an ASCII font name generated from fontset name NAME and |
1485 | ASCII font specification ASCII_SPEC. NAME is a string conforming | |
1486 | to XLFD. ASCII_SPEC is a vector: | |
1487 | [FAMILY WEIGHT SLANT SWIDTH ADSTYLE REGISTRY]. */ | |
1488 | ||
1489 | static INLINE Lisp_Object | |
1490 | generate_ascii_font_name (name, ascii_spec) | |
1491 | Lisp_Object name, ascii_spec; | |
1492 | { | |
1493 | Lisp_Object vec; | |
1494 | int i; | |
1495 | ||
1496 | vec = split_font_name_into_vector (name); | |
1497 | for (i = FONT_SPEC_FAMILY_INDEX; i <= FONT_SPEC_ADSTYLE_INDEX; i++) | |
1498 | if (! NILP (AREF (ascii_spec, i))) | |
1499 | ASET (vec, 1 + i, AREF (ascii_spec, i)); | |
1500 | if (! NILP (AREF (ascii_spec, FONT_SPEC_REGISTRY_INDEX))) | |
1501 | ASET (vec, 12, AREF (ascii_spec, FONT_SPEC_REGISTRY_INDEX)); | |
1502 | return build_font_name_from_vector (vec); | |
1503 | } | |
1504 | ||
fb78e2ed KH |
1505 | /* Variables referred in set_fontset_font. They are set before |
1506 | map_charset_chars is called in Fset_fontset_font. */ | |
1507 | static Lisp_Object font_def_arg, add_arg; | |
1508 | static int from_arg, to_arg; | |
1509 | ||
1510 | /* Callback function for map_charset_chars in Fset_fontset_font. In | |
1511 | FONTSET, set font_def_arg in a fashion specified by add_arg for | |
1512 | characters in RANGE while ignoring the range between from_arg and | |
1513 | to_arg. */ | |
1514 | ||
2449d4d0 | 1515 | static void |
fb78e2ed KH |
1516 | set_fontset_font (fontset, range) |
1517 | Lisp_Object fontset, range; | |
2449d4d0 | 1518 | { |
fb78e2ed KH |
1519 | if (from_arg < to_arg) |
1520 | { | |
1521 | int from = XINT (XCAR (range)), to = XINT (XCDR (range)); | |
2449d4d0 | 1522 | |
fb78e2ed KH |
1523 | if (from < from_arg) |
1524 | { | |
1525 | if (to > to_arg) | |
1526 | { | |
1527 | Lisp_Object range2; | |
1528 | ||
1529 | range2 = Fcons (make_number (to_arg), XCDR (range)); | |
1530 | FONTSET_ADD (fontset, range, font_def_arg, add_arg); | |
1531 | to = to_arg; | |
1532 | } | |
1533 | if (to > from_arg) | |
1534 | range = Fcons (XCAR (range), make_number (from_arg)); | |
1535 | } | |
1536 | else if (to <= to_arg) | |
1537 | return; | |
1538 | else | |
1539 | { | |
1540 | if (from < to_arg) | |
1541 | range = Fcons (make_number (to_arg), XCDR (range)); | |
1542 | } | |
1543 | } | |
1544 | FONTSET_ADD (fontset, range, font_def_arg, add_arg); | |
2449d4d0 KH |
1545 | } |
1546 | ||
d6aaac9e | 1547 | |
1d5d7200 | 1548 | DEFUN ("set-fontset-font", Fset_fontset_font, Sset_fontset_font, 3, 5, 0, |
8f924df7 | 1549 | doc: /* |
eb36588a | 1550 | Modify fontset NAME to use FONT-SPEC for TARGET characters. |
335c5470 | 1551 | |
eb36588a KH |
1552 | TARGET may be a cons; (FROM . TO), where FROM and TO are characters. |
1553 | In that case, use FONT-SPEC for all characters in the range FROM and | |
1554 | TO (inclusive). | |
06f76f0d | 1555 | |
eb36588a KH |
1556 | TARGET may be a script name symbol. In that case, use FONT-SPEC for |
1557 | all characters that belong to the script. | |
06f76f0d | 1558 | |
eb36588a | 1559 | TARGET may be a charset. In that case, use FONT-SPEC for all |
95318a38 | 1560 | characters in the charset. |
1d5d7200 | 1561 | |
eb36588a KH |
1562 | TARGET may be nil. In that case, use FONT-SPEC for any characters for |
1563 | that no FONT-SPEC is specified. | |
1564 | ||
0fdf26e6 | 1565 | FONT-SPEC may one of these: |
3dcd48dd | 1566 | * A cons (FAMILY . REGISTRY), where FAMILY is a font family name and |
0fdf26e6 KH |
1567 | REGISTRY is a font registry name. FAMILY may contains foundry |
1568 | name, and REGISTRY may contains encoding name. | |
00c4da0f | 1569 | * A font name string. |
1d5d7200 KH |
1570 | |
1571 | Optional 4th argument FRAME, if non-nil, is a frame. This argument is | |
1572 | kept for backward compatibility and has no meaning. | |
1573 | ||
1574 | Optional 5th argument ADD, if non-nil, specifies how to add FONT-SPEC | |
eb36588a | 1575 | to the font specifications for TARGET previously set. If it is |
1d5d7200 KH |
1576 | `prepend', FONT-SPEC is prepended. If it is `append', FONT-SPEC is |
1577 | appended. By default, FONT-SPEC overrides the previous settings. */) | |
eb36588a KH |
1578 | (name, target, font_spec, frame, add) |
1579 | Lisp_Object name, target, font_spec, frame, add; | |
0d407d77 | 1580 | { |
06f76f0d | 1581 | Lisp_Object fontset; |
9683749a | 1582 | Lisp_Object font_def, registry, family; |
00c4da0f | 1583 | Lisp_Object encoding, repertory; |
1d5d7200 | 1584 | Lisp_Object range_list; |
fb78e2ed | 1585 | struct charset *charset = NULL; |
0d407d77 KH |
1586 | |
1587 | fontset = check_fontset_name (name); | |
1588 | ||
1d5d7200 KH |
1589 | /* The arg FRAME is kept for backward compatibility. We only check |
1590 | the validity. */ | |
1591 | if (!NILP (frame)) | |
1592 | CHECK_LIVE_FRAME (frame); | |
1593 | ||
06f76f0d | 1594 | if (VECTORP (font_spec)) |
0d407d77 | 1595 | { |
0fdf26e6 KH |
1596 | /* FONT_SPEC should have this form: |
1597 | [ FAMILY WEIGHT SLANT WIDTH ADSTYLE REGISTRY ] | |
1598 | This is a feature not yet documented because WEIGHT thru | |
1599 | ADSTYLE are ignored for the moment. */ | |
1d5d7200 KH |
1600 | int j; |
1601 | ||
d6aaac9e KH |
1602 | if (ASIZE (font_spec) != FONT_SPEC_MAX_INDEX) |
1603 | args_out_of_range (make_number (FONT_SPEC_MAX_INDEX), | |
1d5d7200 | 1604 | make_number (ASIZE (font_spec))); |
06f76f0d KH |
1605 | |
1606 | font_spec = Fcopy_sequence (font_spec); | |
d6aaac9e | 1607 | for (j = 0; j < FONT_SPEC_MAX_INDEX - 1; j++) |
1d5d7200 KH |
1608 | if (! NILP (AREF (font_spec, j))) |
1609 | { | |
1610 | CHECK_STRING (AREF (font_spec, j)); | |
1611 | ASET (font_spec, j, Fdowncase (AREF (font_spec, j))); | |
1612 | } | |
d19b3ee7 | 1613 | family = AREF (font_spec, FONT_SPEC_FAMILY_INDEX); |
1d5d7200 | 1614 | /* REGISTRY should not be omitted. */ |
d6aaac9e | 1615 | CHECK_STRING (AREF (font_spec, FONT_SPEC_REGISTRY_INDEX)); |
d19b3ee7 | 1616 | registry = AREF (font_spec, FONT_SPEC_REGISTRY_INDEX); |
0d407d77 | 1617 | } |
06f76f0d | 1618 | else if (CONSP (font_spec)) |
0890801b | 1619 | { |
06f76f0d KH |
1620 | family = XCAR (font_spec); |
1621 | registry = XCDR (font_spec); | |
1d5d7200 KH |
1622 | |
1623 | if (! NILP (family)) | |
06f76f0d KH |
1624 | { |
1625 | CHECK_STRING (family); | |
1d5d7200 | 1626 | family = Fdowncase (family); |
06f76f0d KH |
1627 | } |
1628 | CHECK_STRING (registry); | |
1d5d7200 | 1629 | registry = Fdowncase (registry); |
d6aaac9e KH |
1630 | font_spec = Fmake_vector (make_number (FONT_SPEC_MAX_INDEX), Qnil); |
1631 | ASET (font_spec, FONT_SPEC_FAMILY_INDEX, family); | |
1632 | ASET (font_spec, FONT_SPEC_REGISTRY_INDEX, registry); | |
0890801b | 1633 | } |
0d407d77 | 1634 | else |
4ed46869 | 1635 | { |
1d5d7200 KH |
1636 | CHECK_STRING (font_spec); |
1637 | font_spec = Fdowncase (font_spec); | |
0d407d77 | 1638 | } |
1d5d7200 KH |
1639 | |
1640 | if (STRINGP (font_spec)) | |
71c54d6f | 1641 | encoding = find_font_encoding (font_spec); |
0d407d77 | 1642 | else |
9683749a | 1643 | encoding = find_font_encoding (concat2 (family, registry)); |
8aa07a8d KH |
1644 | if (NILP (encoding)) |
1645 | encoding = Qascii; | |
1646 | ||
1d5d7200 | 1647 | if (SYMBOLP (encoding)) |
57e13af9 KH |
1648 | { |
1649 | CHECK_CHARSET (encoding); | |
1650 | encoding = repertory = CHARSET_SYMBOL_ID (encoding); | |
1651 | } | |
1d5d7200 | 1652 | else |
0d407d77 | 1653 | { |
1d5d7200 | 1654 | repertory = XCDR (encoding); |
57e13af9 KH |
1655 | encoding = XCAR (encoding); |
1656 | CHECK_CHARSET (encoding); | |
1657 | encoding = CHARSET_SYMBOL_ID (encoding); | |
1658 | if (! NILP (repertory) && SYMBOLP (repertory)) | |
1659 | { | |
1660 | CHECK_CHARSET (repertory); | |
1661 | repertory = CHARSET_SYMBOL_ID (repertory); | |
1662 | } | |
0d407d77 | 1663 | } |
1d5d7200 KH |
1664 | font_def = Fmake_vector (make_number (3), font_spec); |
1665 | ASET (font_def, 1, encoding); | |
1666 | ASET (font_def, 2, repertory); | |
4ed46869 | 1667 | |
eb36588a KH |
1668 | if (CHARACTERP (target)) |
1669 | range_list = Fcons (Fcons (target, target), Qnil); | |
1670 | else if (CONSP (target)) | |
0d407d77 | 1671 | { |
06f76f0d KH |
1672 | Lisp_Object from, to; |
1673 | ||
eb36588a KH |
1674 | from = Fcar (target); |
1675 | to = Fcdr (target); | |
06f76f0d KH |
1676 | CHECK_CHARACTER (from); |
1677 | CHECK_CHARACTER (to); | |
eb36588a | 1678 | range_list = Fcons (target, Qnil); |
4ed46869 | 1679 | } |
eb36588a | 1680 | else if (SYMBOLP (target) && !NILP (target)) |
8a9be3ac | 1681 | { |
1d5d7200 KH |
1682 | Lisp_Object script_list; |
1683 | Lisp_Object val; | |
0d407d77 | 1684 | |
1d5d7200 KH |
1685 | range_list = Qnil; |
1686 | script_list = XCHAR_TABLE (Vchar_script_table)->extras[0]; | |
eb36588a | 1687 | if (! NILP (Fmemq (target, script_list))) |
afe93d01 | 1688 | { |
eb36588a | 1689 | val = Fcons (target, Qnil); |
1d5d7200 | 1690 | map_char_table (accumulate_script_ranges, Qnil, Vchar_script_table, |
8f924df7 KH |
1691 | val); |
1692 | range_list = XCDR (val); | |
c3fb88cc KH |
1693 | if (EQ (target, Qlatin)) |
1694 | { | |
1695 | if (VECTORP (font_spec)) | |
1696 | val = generate_ascii_font_name (FONTSET_NAME (fontset), | |
1697 | font_spec); | |
1698 | else | |
1699 | val = font_spec; | |
1700 | FONTSET_ASCII (fontset) = val; | |
1701 | } | |
afe93d01 | 1702 | } |
fb78e2ed | 1703 | if (CHARSETP (target)) |
afe93d01 | 1704 | { |
eb36588a | 1705 | if (EQ (target, Qascii)) |
862aa7f9 | 1706 | { |
d6aaac9e | 1707 | if (VECTORP (font_spec)) |
862aa7f9 KH |
1708 | font_spec = generate_ascii_font_name (FONTSET_NAME (fontset), |
1709 | font_spec); | |
1710 | FONTSET_ASCII (fontset) = font_spec; | |
2449d4d0 KH |
1711 | range_list = Fcons (Fcons (make_number (0), make_number (127)), |
1712 | Qnil); | |
1713 | } | |
1714 | else | |
1715 | { | |
fb78e2ed | 1716 | CHECK_CHARSET_GET_CHARSET (target, charset); |
862aa7f9 | 1717 | } |
afe93d01 | 1718 | } |
fb78e2ed | 1719 | else if (NILP (range_list)) |
1d5d7200 | 1720 | error ("Invalid script or charset name: %s", |
eb36588a | 1721 | SDATA (SYMBOL_NAME (target))); |
8a9be3ac | 1722 | } |
eb36588a KH |
1723 | else if (NILP (target)) |
1724 | range_list = Fcons (Qnil, Qnil); | |
1725 | else | |
1726 | error ("Invalid target for setting a font"); | |
0d407d77 | 1727 | |
fb78e2ed KH |
1728 | |
1729 | if (charset) | |
1730 | { | |
1731 | font_def_arg = font_def; | |
1732 | add_arg = add; | |
1733 | if (NILP (range_list)) | |
1734 | from_arg = to_arg = 0; | |
1735 | else | |
1736 | from_arg = XINT (XCAR (XCAR (range_list))), | |
1737 | to_arg = XINT (XCDR (XCAR (range_list))); | |
1738 | ||
1739 | map_charset_chars (set_fontset_font, Qnil, fontset, charset, | |
1740 | CHARSET_MIN_CODE (charset), | |
1741 | CHARSET_MAX_CODE (charset)); | |
1742 | } | |
1d5d7200 KH |
1743 | for (; CONSP (range_list); range_list = XCDR (range_list)) |
1744 | FONTSET_ADD (fontset, XCAR (range_list), font_def, add); | |
4ed46869 | 1745 | |
06f76f0d KH |
1746 | /* Free all realized fontsets whose base is FONTSET. This way, the |
1747 | specified character(s) are surely redisplayed by a correct | |
1748 | font. */ | |
1749 | free_realized_fontsets (fontset); | |
4ed46869 | 1750 | |
4ed46869 KH |
1751 | return Qnil; |
1752 | } | |
1753 | ||
06f76f0d KH |
1754 | |
1755 | DEFUN ("new-fontset", Fnew_fontset, Snew_fontset, 2, 2, 0, | |
1756 | doc: /* Create a new fontset NAME from font information in FONTLIST. | |
1757 | ||
1d5d7200 | 1758 | FONTLIST is an alist of scripts vs the corresponding font specification list. |
d6aaac9e KH |
1759 | Each element of FONTLIST has the form (SCRIPT FONT-SPEC ...), where a |
1760 | character of SCRIPT is displayed by a font that matches one of | |
1761 | FONT-SPEC. | |
06f76f0d | 1762 | |
d6aaac9e KH |
1763 | SCRIPT is a symbol that appears in the first extra slot of the |
1764 | char-table `char-script-table'. | |
06f76f0d | 1765 | |
1d5d7200 KH |
1766 | FONT-SPEC is a vector, a cons, or a string. See the documentation of |
1767 | `set-fontset-font' for the meaning. */) | |
06f76f0d KH |
1768 | (name, fontlist) |
1769 | Lisp_Object name, fontlist; | |
1770 | { | |
1d5d7200 KH |
1771 | Lisp_Object fontset; |
1772 | Lisp_Object val; | |
1773 | int id; | |
06f76f0d KH |
1774 | |
1775 | CHECK_STRING (name); | |
1776 | CHECK_LIST (fontlist); | |
1777 | ||
1d5d7200 KH |
1778 | id = fs_query_fontset (name, 0); |
1779 | if (id < 0) | |
0d407d77 | 1780 | { |
d6aaac9e KH |
1781 | name = Fdowncase (name); |
1782 | val = split_font_name_into_vector (name); | |
df1e3c95 | 1783 | if (NILP (val) || NILP (AREF (val, 12)) || NILP (AREF (val, 13))) |
d6aaac9e | 1784 | error ("Fontset name must be in XLFD format"); |
8f924df7 | 1785 | if (strcmp (SDATA (AREF (val, 12)), "fontset")) |
d6aaac9e KH |
1786 | error ("Registry field of fontset name must be \"fontset\""); |
1787 | Vfontset_alias_alist | |
1788 | = Fcons (Fcons (name, | |
1789 | concat2 (concat2 (AREF (val, 12), build_string ("-")), | |
1790 | AREF (val, 13))), | |
1791 | Vfontset_alias_alist); | |
1792 | ASET (val, 12, build_string ("iso8859-1")); | |
1793 | fontset = make_fontset (Qnil, name, Qnil); | |
1794 | FONTSET_ASCII (fontset) = build_font_name_from_vector (val); | |
1795 | } | |
1d5d7200 KH |
1796 | else |
1797 | { | |
1798 | fontset = FONTSET_FROM_ID (id);; | |
1799 | free_realized_fontsets (fontset); | |
1800 | Fset_char_table_range (fontset, Qt, Qnil); | |
0d407d77 | 1801 | } |
4ed46869 | 1802 | |
1d5d7200 KH |
1803 | for (; ! NILP (fontlist); fontlist = Fcdr (fontlist)) |
1804 | { | |
1805 | Lisp_Object elt, script; | |
1806 | ||
1807 | elt = Fcar (fontlist); | |
1808 | script = Fcar (elt); | |
cc36ddbf KH |
1809 | elt = Fcdr (elt); |
1810 | if (CONSP (elt) && (NILP (XCDR (elt)) || CONSP (XCDR (elt)))) | |
1811 | for (; CONSP (elt); elt = XCDR (elt)) | |
1812 | Fset_fontset_font (name, script, XCAR (elt), Qnil, Qappend); | |
1813 | else | |
1814 | Fset_fontset_font (name, script, elt, Qnil, Qappend); | |
1d5d7200 | 1815 | } |
06f76f0d KH |
1816 | return name; |
1817 | } | |
1818 | ||
1819 | ||
452a78e0 KH |
1820 | /* Alist of automatically created fontsets. Each element is a cons |
1821 | (FONTNAME . FONTSET-ID). */ | |
1822 | static Lisp_Object auto_fontset_alist; | |
d6aaac9e KH |
1823 | |
1824 | int | |
1825 | new_fontset_from_font_name (Lisp_Object fontname) | |
1826 | { | |
452a78e0 | 1827 | Lisp_Object val; |
d6aaac9e KH |
1828 | Lisp_Object name; |
1829 | Lisp_Object vec; | |
452a78e0 | 1830 | int id; |
d6aaac9e KH |
1831 | |
1832 | fontname = Fdowncase (fontname); | |
452a78e0 KH |
1833 | val = Fassoc (fontname, auto_fontset_alist); |
1834 | if (CONSP (val)) | |
1835 | return XINT (XCDR (val)); | |
1836 | ||
d6aaac9e KH |
1837 | vec = split_font_name_into_vector (fontname); |
1838 | if ( NILP (vec)) | |
1839 | vec = Fmake_vector (make_number (14), build_string ("")); | |
1840 | ASET (vec, 12, build_string ("fontset")); | |
452a78e0 | 1841 | if (NILP (auto_fontset_alist)) |
d6aaac9e KH |
1842 | { |
1843 | ASET (vec, 13, build_string ("startup")); | |
1844 | name = build_font_name_from_vector (vec); | |
d6aaac9e KH |
1845 | } |
1846 | else | |
1847 | { | |
1848 | char temp[20]; | |
e1a14cdc | 1849 | int len = XINT (Flength (auto_fontset_alist)); |
d6aaac9e | 1850 | |
452a78e0 KH |
1851 | sprintf (temp, "auto%d", len); |
1852 | ASET (vec, 13, build_string (temp)); | |
1853 | name = build_font_name_from_vector (vec); | |
d6aaac9e | 1854 | } |
fb78e2ed KH |
1855 | name = Fnew_fontset (name, list2 (list2 (Qascii, fontname), |
1856 | list2 (Fcons (make_number (0), | |
2ec7fd70 | 1857 | make_number (MAX_CHAR)), |
fb78e2ed | 1858 | fontname))); |
452a78e0 KH |
1859 | id = fs_query_fontset (name, 0); |
1860 | auto_fontset_alist | |
1861 | = Fcons (Fcons (fontname, make_number (id)), auto_fontset_alist); | |
1862 | return id; | |
4ed46869 KH |
1863 | } |
1864 | ||
8aa07a8d KH |
1865 | #ifdef USE_FONT_BACKEND |
1866 | int | |
03ef560c | 1867 | new_fontset_from_font (font_object) |
8aa07a8d KH |
1868 | Lisp_Object font_object; |
1869 | { | |
03ef560c KH |
1870 | Lisp_Object font_name = font_get_name (font_object); |
1871 | Lisp_Object font_spec = font_get_spec (font_object); | |
1c82b4b3 | 1872 | Lisp_Object fontset_spec, short_name, name, fontset; |
8aa07a8d | 1873 | |
03ef560c KH |
1874 | if (NILP (auto_fontset_alist)) |
1875 | short_name = build_string ("fontset-startup"); | |
1876 | else | |
1877 | { | |
1878 | char temp[32]; | |
1879 | int len = XINT (Flength (auto_fontset_alist)); | |
8aa07a8d | 1880 | |
03ef560c KH |
1881 | sprintf (temp, "fontset-auto%d", len); |
1882 | short_name = build_string (temp); | |
1883 | } | |
1c82b4b3 KH |
1884 | fontset_spec = Fcopy_sequence (font_spec); |
1885 | ASET (fontset_spec, FONT_REGISTRY_INDEX, short_name); | |
1886 | name = Ffont_xlfd_name (fontset_spec); | |
03ef560c KH |
1887 | if (NILP (name)) |
1888 | { | |
1889 | int i; | |
1890 | ||
1891 | for (i = 0; i < FONT_SIZE_INDEX; i++) | |
1892 | if ((i != FONT_FAMILY_INDEX) && (i != FONT_REGISTRY_INDEX)) | |
1c82b4b3 KH |
1893 | ASET (fontset_spec, i, Qnil); |
1894 | name = Ffont_xlfd_name (fontset_spec); | |
03ef560c KH |
1895 | if (NILP (name)) |
1896 | abort (); | |
1897 | } | |
1898 | fontset = make_fontset (Qnil, name, Qnil); | |
1899 | FONTSET_ASCII (fontset) = font_name; | |
1c82b4b3 KH |
1900 | font_spec = Fcons (SYMBOL_NAME (AREF (font_spec, FONT_FAMILY_INDEX)), |
1901 | SYMBOL_NAME (AREF (font_spec, FONT_REGISTRY_INDEX))); | |
1902 | Fset_fontset_font (name, Qlatin, font_spec, Qnil, Qnil); | |
1903 | Fset_fontset_font (name, Qnil, font_spec, Qnil, Qnil); | |
03ef560c | 1904 | return XINT (FONTSET_ID (fontset)); |
8aa07a8d KH |
1905 | } |
1906 | ||
1907 | struct font * | |
1908 | fontset_ascii_font (f, id) | |
1909 | FRAME_PTR f; | |
1910 | int id; | |
1911 | { | |
1912 | Lisp_Object fontset = FONTSET_FROM_ID (id); | |
1913 | Lisp_Object ascii_slot = FONTSET_ASCII (fontset); | |
1914 | Lisp_Object val, font_object; | |
1915 | ||
1916 | if (CONSP (ascii_slot)) | |
1917 | { | |
1918 | Lisp_Object ascii_font_name = XCAR (ascii_slot); | |
1919 | ||
1920 | font_object = Qnil; | |
1921 | for (val = XCDR (ascii_slot); ! NILP (val); val = XCDR (val)) | |
1922 | { | |
1923 | Lisp_Object frame = font_get_frame (XCAR (val)); | |
1924 | ||
1925 | if (NILP (frame) || XFRAME (frame) == f) | |
1926 | { | |
1927 | font_object = XCAR (val); | |
1928 | if (XSAVE_VALUE (font_object)->integer == 0) | |
1929 | { | |
1930 | font_object = font_open_by_name (f, SDATA (ascii_font_name)); | |
1931 | XSETCAR (val, font_object); | |
1932 | } | |
1933 | break; | |
1934 | } | |
1935 | } | |
1936 | if (NILP (font_object)) | |
1937 | { | |
1938 | font_object = font_open_by_name (f, SDATA (ascii_font_name)); | |
1939 | XSETCDR (ascii_slot, Fcons (font_object, XCDR (ascii_slot))); | |
1940 | } | |
1941 | } | |
1942 | else | |
1943 | { | |
1944 | font_object = font_open_by_name (f, SDATA (ascii_slot)); | |
1945 | FONTSET_ASCII (fontset) = Fcons (ascii_slot, Fcons (font_object, Qnil)); | |
1946 | } | |
02dacbbc KH |
1947 | if (NILP (font_object)) |
1948 | return NULL; | |
8aa07a8d KH |
1949 | return XSAVE_VALUE (font_object)->pointer; |
1950 | } | |
1951 | ||
1952 | #endif /* USE_FONT_BACKEND */ | |
d6aaac9e | 1953 | |
4ed46869 | 1954 | DEFUN ("font-info", Ffont_info, Sfont_info, 1, 2, 0, |
335c5470 PJ |
1955 | doc: /* Return information about a font named NAME on frame FRAME. |
1956 | If FRAME is omitted or nil, use the selected frame. | |
1957 | The returned value is a vector of OPENED-NAME, FULL-NAME, CHARSET, SIZE, | |
1958 | HEIGHT, BASELINE-OFFSET, RELATIVE-COMPOSE, and DEFAULT-ASCENT, | |
1959 | where | |
1960 | OPENED-NAME is the name used for opening the font, | |
1961 | FULL-NAME is the full name of the font, | |
1962 | SIZE is the maximum bound width of the font, | |
1963 | HEIGHT is the height of the font, | |
1964 | BASELINE-OFFSET is the upward offset pixels from ASCII baseline, | |
1965 | RELATIVE-COMPOSE and DEFAULT-ASCENT are the numbers controlling | |
1966 | how to compose characters. | |
1967 | If the named font is not yet loaded, return nil. */) | |
1968 | (name, frame) | |
4ed46869 KH |
1969 | Lisp_Object name, frame; |
1970 | { | |
1971 | FRAME_PTR f; | |
1972 | struct font_info *fontp; | |
1973 | Lisp_Object info; | |
8aa07a8d | 1974 | Lisp_Object font_object; |
4ed46869 KH |
1975 | |
1976 | (*check_window_system_func) (); | |
1977 | ||
b7826503 | 1978 | CHECK_STRING (name); |
0d407d77 | 1979 | name = Fdowncase (name); |
4ed46869 | 1980 | if (NILP (frame)) |
18f39d0e | 1981 | frame = selected_frame; |
b7826503 | 1982 | CHECK_LIVE_FRAME (frame); |
18f39d0e | 1983 | f = XFRAME (frame); |
4ed46869 KH |
1984 | |
1985 | if (!query_font_func) | |
1986 | error ("Font query function is not supported"); | |
1987 | ||
8aa07a8d KH |
1988 | #ifdef USE_FONT_BACKEND |
1989 | if (enable_font_backend) | |
1990 | { | |
1991 | font_object = font_open_by_name (f, SDATA (name)); | |
1992 | if (NILP (font_object)) | |
1993 | fontp = NULL; | |
1994 | else | |
1995 | fontp = (struct font_info *) XSAVE_VALUE (font_object)->pointer; | |
1996 | } | |
1997 | else | |
1998 | #endif /* USE_FONT_BACKEND */ | |
d5db4077 | 1999 | fontp = (*query_font_func) (f, SDATA (name)); |
4ed46869 KH |
2000 | if (!fontp) |
2001 | return Qnil; | |
2002 | ||
0d407d77 | 2003 | info = Fmake_vector (make_number (7), Qnil); |
4ed46869 KH |
2004 | |
2005 | XVECTOR (info)->contents[0] = build_string (fontp->name); | |
2006 | XVECTOR (info)->contents[1] = build_string (fontp->full_name); | |
0d407d77 KH |
2007 | XVECTOR (info)->contents[2] = make_number (fontp->size); |
2008 | XVECTOR (info)->contents[3] = make_number (fontp->height); | |
2009 | XVECTOR (info)->contents[4] = make_number (fontp->baseline_offset); | |
2010 | XVECTOR (info)->contents[5] = make_number (fontp->relative_compose); | |
2011 | XVECTOR (info)->contents[6] = make_number (fontp->default_ascent); | |
4ed46869 | 2012 | |
8aa07a8d KH |
2013 | #ifdef USE_FONT_BACKEND |
2014 | if (! NILP (font_object)) | |
2015 | font_close_object (f, font_object); | |
2016 | #endif /* USE_FONT_BACKEND */ | |
4ed46869 KH |
2017 | return info; |
2018 | } | |
2019 | ||
1ff005e1 | 2020 | |
92c15c34 KH |
2021 | /* Return a cons (FONT-NAME . GLYPH-CODE). |
2022 | FONT-NAME is the font name for the character at POSITION in the current | |
1ff005e1 | 2023 | buffer. This is computed from all the text properties and overlays |
cf14fd6e KH |
2024 | that apply to POSITION. POSTION may be nil, in which case, |
2025 | FONT-NAME is the font name for display the character CH with the | |
2026 | default face. | |
2027 | ||
92c15c34 KH |
2028 | GLYPH-CODE is the glyph code in the font to use for the character. |
2029 | ||
2030 | If the 2nd optional arg CH is non-nil, it is a character to check | |
2031 | the font instead of the character at POSITION. | |
2032 | ||
2033 | It returns nil in the following cases: | |
1ff005e1 KH |
2034 | |
2035 | (1) The window system doesn't have a font for the character (thus | |
2036 | it is displayed by an empty box). | |
2037 | ||
2038 | (2) The character code is invalid. | |
2039 | ||
cf14fd6e KH |
2040 | (3) If POSITION is not nil, and the current buffer is not displayed |
2041 | in any window. | |
1ff005e1 KH |
2042 | |
2043 | In addition, the returned font name may not take into account of | |
2044 | such redisplay engine hooks as what used in jit-lock-mode if | |
2045 | POSITION is currently not visible. */ | |
2046 | ||
2047 | ||
92c15c34 | 2048 | DEFUN ("internal-char-font", Finternal_char_font, Sinternal_char_font, 1, 2, 0, |
335c5470 | 2049 | doc: /* For internal use only. */) |
92c15c34 KH |
2050 | (position, ch) |
2051 | Lisp_Object position, ch; | |
1ff005e1 KH |
2052 | { |
2053 | int pos, pos_byte, dummy; | |
2054 | int face_id; | |
2055 | int c; | |
1ff005e1 KH |
2056 | struct frame *f; |
2057 | struct face *face; | |
7e1a1cd9 | 2058 | Lisp_Object charset, rfont_def; |
f0be8ea0 | 2059 | int cs_id; |
1ff005e1 | 2060 | |
cf14fd6e | 2061 | if (NILP (position)) |
92c15c34 KH |
2062 | { |
2063 | CHECK_CHARACTER (ch); | |
2064 | c = XINT (ch); | |
cf14fd6e KH |
2065 | f = XFRAME (selected_frame); |
2066 | face_id = DEFAULT_FACE_ID; | |
327719ee | 2067 | pos = -1; |
f0be8ea0 | 2068 | cs_id = -1; |
cf14fd6e KH |
2069 | } |
2070 | else | |
2071 | { | |
2f80c0a2 | 2072 | Lisp_Object window, charset; |
cf14fd6e KH |
2073 | struct window *w; |
2074 | ||
2075 | CHECK_NUMBER_COERCE_MARKER (position); | |
2076 | pos = XINT (position); | |
2077 | if (pos < BEGV || pos >= ZV) | |
2078 | args_out_of_range_3 (position, make_number (BEGV), make_number (ZV)); | |
2079 | pos_byte = CHAR_TO_BYTE (pos); | |
2080 | if (NILP (ch)) | |
2081 | c = FETCH_CHAR (pos_byte); | |
2082 | else | |
2083 | { | |
2084 | CHECK_NATNUM (ch); | |
2085 | c = XINT (ch); | |
2086 | } | |
2087 | window = Fget_buffer_window (Fcurrent_buffer (), Qnil); | |
2088 | if (NILP (window)) | |
2089 | return Qnil; | |
2090 | w = XWINDOW (window); | |
2091 | f = XFRAME (w->frame); | |
2092 | face_id = face_at_buffer_position (w, pos, -1, -1, &dummy, pos + 100, 0); | |
2f80c0a2 KH |
2093 | charset = Fget_char_property (position, Qcharset, Qnil); |
2094 | if (CHARSETP (charset)) | |
f0be8ea0 | 2095 | cs_id = XINT (CHARSET_SYMBOL_ID (charset)); |
2f80c0a2 | 2096 | else |
f0be8ea0 | 2097 | cs_id = -1; |
92c15c34 | 2098 | } |
1ff005e1 | 2099 | if (! CHAR_VALID_P (c, 0)) |
1ff005e1 | 2100 | return Qnil; |
327719ee | 2101 | face_id = FACE_FOR_CHAR (f, FACE_FROM_ID (f, face_id), c, pos, Qnil); |
1ff005e1 | 2102 | face = FACE_FROM_ID (f, face_id); |
f0be8ea0 | 2103 | rfont_def = fontset_font (FONTSET_FROM_ID (face->fontset), c, face, cs_id); |
8aa07a8d KH |
2104 | #ifdef USE_FONT_BACKEND |
2105 | if (enable_font_backend) | |
2106 | { | |
8aa07a8d KH |
2107 | if (VECTORP (rfont_def) && ! NILP (AREF (rfont_def, 4))) |
2108 | { | |
2109 | Lisp_Object font_object = AREF (rfont_def, 4); | |
2110 | struct font *font = XSAVE_VALUE (font_object)->pointer; | |
2111 | unsigned code = font->driver->encode_char (font, c); | |
a49d705d | 2112 | Lisp_Object fontname = font_get_name (font_object); |
8aa07a8d KH |
2113 | |
2114 | if (code == FONT_INVALID_CODE) | |
2115 | return Fcons (fontname, Qnil); | |
2116 | if (code <= MOST_POSITIVE_FIXNUM) | |
2117 | return Fcons (fontname, make_number (code)); | |
2118 | return Fcons (fontname, Fcons (make_number (code >> 16), | |
2119 | make_number (code & 0xFFFF))); | |
2120 | } | |
2121 | return Qnil; | |
2122 | } | |
2123 | #endif /* USE_FONT_BACKEND */ | |
92c15c34 KH |
2124 | if (VECTORP (rfont_def) && STRINGP (AREF (rfont_def, 3))) |
2125 | { | |
2126 | Lisp_Object font_def; | |
2127 | struct font_info *fontp; | |
2128 | struct charset *charset; | |
2129 | XChar2b char2b; | |
2130 | int code; | |
2131 | ||
2132 | font_def = AREF (rfont_def, 2); | |
2133 | charset = CHARSET_FROM_ID (XINT (AREF (font_def, 1))); | |
2134 | code = ENCODE_CHAR (charset, c); | |
2135 | if (code == CHARSET_INVALID_CODE (charset)) | |
2136 | return (Fcons (AREF (rfont_def, 3), Qnil)); | |
2137 | STORE_XCHAR2B (&char2b, ((code >> 8) & 0xFF), (code & 0xFF)); | |
2138 | fontp = (*get_font_info_func) (f, XINT (AREF (rfont_def, 1))); | |
c73bd236 | 2139 | FRAME_RIF (f)->encode_char (c, &char2b, fontp, charset, NULL); |
92c15c34 KH |
2140 | code = (XCHAR2B_BYTE1 (&char2b) << 8) | XCHAR2B_BYTE2 (&char2b); |
2141 | return (Fcons (AREF (rfont_def, 3), make_number (code))); | |
2142 | } | |
2143 | return Qnil; | |
1ff005e1 KH |
2144 | } |
2145 | ||
2146 | ||
1d5d7200 KH |
2147 | DEFUN ("fontset-info", Ffontset_info, Sfontset_info, 1, 2, 0, |
2148 | doc: /* Return information about a fontset FONTSET on frame FRAME. | |
2149 | The value is a char-table of which elements has this form. | |
e2b45cf9 | 2150 | |
1d5d7200 | 2151 | ((FONT-PATTERN OPENED-FONT ...) ...) |
1ff005e1 | 2152 | |
1d5d7200 | 2153 | FONT-PATTERN is a vector: |
1ff005e1 | 2154 | |
1d5d7200 | 2155 | [ FAMILY WEIGHT SLANT SWIDTH ADSTYLE REGISTRY ] |
1ff005e1 | 2156 | |
1d5d7200 | 2157 | or a string of font name pattern. |
1ff005e1 | 2158 | |
d6aaac9e | 2159 | OPENED-FONT is a name of a font actually opened. |
1ff005e1 | 2160 | |
d6aaac9e KH |
2161 | The char-table has one extra slot. The value is a char-table |
2162 | containing the information about the derived fonts from the default | |
2163 | fontset. The format is the same as abobe. */) | |
1d5d7200 KH |
2164 | (fontset, frame) |
2165 | Lisp_Object fontset, frame; | |
4ed46869 KH |
2166 | { |
2167 | FRAME_PTR f; | |
cc7b6145 KH |
2168 | Lisp_Object *realized[2], fontsets[2], tables[2]; |
2169 | Lisp_Object val, elt; | |
2170 | int c, i, j, k; | |
fc8865fc | 2171 | |
4ed46869 KH |
2172 | (*check_window_system_func) (); |
2173 | ||
1d5d7200 | 2174 | fontset = check_fontset_name (fontset); |
0d407d77 | 2175 | |
4ed46869 | 2176 | if (NILP (frame)) |
18f39d0e | 2177 | frame = selected_frame; |
b7826503 | 2178 | CHECK_LIVE_FRAME (frame); |
18f39d0e | 2179 | f = XFRAME (frame); |
4ed46869 | 2180 | |
1d5d7200 KH |
2181 | /* Recode fontsets realized on FRAME from the base fontset FONTSET |
2182 | in the table `realized'. */ | |
cc7b6145 KH |
2183 | realized[0] = (Lisp_Object *) alloca (sizeof (Lisp_Object) |
2184 | * ASIZE (Vfontset_table)); | |
2185 | for (i = j = 0; i < ASIZE (Vfontset_table); i++) | |
0d407d77 | 2186 | { |
1ff005e1 KH |
2187 | elt = FONTSET_FROM_ID (i); |
2188 | if (!NILP (elt) | |
1d5d7200 KH |
2189 | && EQ (FONTSET_BASE (elt), fontset) |
2190 | && EQ (FONTSET_FRAME (elt), frame)) | |
cc7b6145 | 2191 | realized[0][j++] = elt; |
0d407d77 | 2192 | } |
cc7b6145 | 2193 | realized[0][j] = Qnil; |
4ed46869 | 2194 | |
cc7b6145 KH |
2195 | realized[1] = (Lisp_Object *) alloca (sizeof (Lisp_Object) |
2196 | * ASIZE (Vfontset_table)); | |
2197 | for (i = j = 0; ! NILP (realized[0][i]); i++) | |
2198 | { | |
2199 | elt = FONTSET_DEFAULT (realized[0][i]); | |
2200 | if (! NILP (elt)) | |
2201 | realized[1][j++] = elt; | |
2202 | } | |
2203 | realized[1][j] = Qnil; | |
2204 | ||
2205 | tables[0] = Fmake_char_table (Qfontset_info, Qnil); | |
2206 | tables[1] = Fmake_char_table (Qnil, Qnil); | |
2207 | XCHAR_TABLE (tables[0])->extras[0] = tables[1]; | |
2208 | fontsets[0] = fontset; | |
2209 | fontsets[1] = Vdefault_fontset; | |
e2b45cf9 | 2210 | |
1d5d7200 KH |
2211 | /* Accumulate information of the fontset in TABLE. The format of |
2212 | each element is ((FONT-SPEC OPENED-FONT ...) ...). */ | |
cc7b6145 | 2213 | for (k = 0; k <= 1; k++) |
0d407d77 | 2214 | { |
cc7b6145 | 2215 | for (c = 0; c <= MAX_CHAR; ) |
d6aaac9e KH |
2216 | { |
2217 | int from, to; | |
0d407d77 | 2218 | |
cc7b6145 KH |
2219 | if (c <= MAX_5_BYTE_CHAR) |
2220 | { | |
2221 | val = char_table_ref_and_range (fontsets[k], c, &from, &to); | |
2222 | if (to > MAX_5_BYTE_CHAR) | |
2223 | to = MAX_5_BYTE_CHAR; | |
2224 | } | |
2225 | else | |
2226 | { | |
2227 | val = FONTSET_FALLBACK (fontsets[k]); | |
2228 | to = MAX_CHAR; | |
2229 | } | |
d6aaac9e | 2230 | if (VECTORP (val)) |
0d407d77 | 2231 | { |
d6aaac9e KH |
2232 | Lisp_Object alist; |
2233 | ||
2234 | /* At first, set ALIST to ((FONT-SPEC) ...). */ | |
2235 | for (alist = Qnil, i = 0; i < ASIZE (val); i++) | |
2236 | alist = Fcons (Fcons (AREF (AREF (val, i), 0), Qnil), alist); | |
2237 | alist = Fnreverse (alist); | |
2238 | ||
2239 | /* Then store opend font names to cdr of each elements. */ | |
cc7b6145 | 2240 | for (i = 0; ! NILP (realized[k][i]); i++) |
1ff005e1 | 2241 | { |
cc7b6145 KH |
2242 | if (c <= MAX_5_BYTE_CHAR) |
2243 | val = FONTSET_REF (realized[k][i], c); | |
2244 | else | |
2245 | val = FONTSET_FALLBACK (realized[k][i]); | |
2246 | if (! VECTORP (val)) | |
d6aaac9e | 2247 | continue; |
7e1a1cd9 KH |
2248 | /* VAL is [int int ? |
2249 | [FACE-ID FONT-INDEX FONT-DEF FONT-NAME] ...]. | |
d6aaac9e | 2250 | If a font of an element is already opened, |
7e1a1cd9 | 2251 | FONT-NAME is the name of a opened font. */ |
6bad8007 | 2252 | for (j = 3; j < ASIZE (val); j++) |
7e1a1cd9 | 2253 | if (STRINGP (AREF (AREF (val, j), 3))) |
d6aaac9e KH |
2254 | { |
2255 | Lisp_Object font_idx; | |
2256 | ||
2257 | font_idx = AREF (AREF (val, j), 1); | |
2258 | elt = Fassq (AREF (AREF (AREF (val, j), 2), 0), alist); | |
2259 | if (CONSP (elt) | |
2260 | && NILP (Fmemq (font_idx, XCDR(elt)))) | |
2261 | nconc2 (elt, Fcons (font_idx, Qnil)); | |
2262 | } | |
1ff005e1 | 2263 | } |
d6aaac9e KH |
2264 | for (val = alist; CONSP (val); val = XCDR (val)) |
2265 | for (elt = XCDR (XCAR (val)); CONSP (elt); elt = XCDR (elt)) | |
1d5d7200 | 2266 | { |
d6aaac9e KH |
2267 | struct font_info *font_info |
2268 | = (*get_font_info_func) (f, XINT (XCAR (elt))); | |
2269 | XSETCAR (elt, build_string (font_info->full_name)); | |
1d5d7200 | 2270 | } |
d6aaac9e KH |
2271 | |
2272 | /* Store ALIST in TBL for characters C..TO. */ | |
cc7b6145 KH |
2273 | if (c <= MAX_5_BYTE_CHAR) |
2274 | char_table_set_range (tables[k], c, to, alist); | |
2275 | else | |
2276 | XCHAR_TABLE (tables[k])->defalt = alist; | |
0d407d77 | 2277 | } |
d6aaac9e | 2278 | c = to + 1; |
0d407d77 KH |
2279 | } |
2280 | } | |
a921395d | 2281 | |
cc7b6145 | 2282 | return tables[0]; |
4ed46869 KH |
2283 | } |
2284 | ||
1d5d7200 | 2285 | |
0fdf26e6 | 2286 | DEFUN ("fontset-font", Ffontset_font, Sfontset_font, 2, 3, 0, |
335c5470 | 2287 | doc: /* Return a font name pattern for character CH in fontset NAME. |
0fdf26e6 KH |
2288 | If NAME is t, find a pattern in the default fontset. |
2289 | ||
2290 | The value has the form (FAMILY . REGISTRY), where FAMILY is a font | |
2291 | family name and REGISTRY is a font registry name. This is actually | |
2292 | the first font name pattern for CH in the fontset or in the default | |
2293 | fontset. | |
2294 | ||
2295 | If the 2nd optional arg ALL is non-nil, return a list of all font name | |
2296 | patterns. */) | |
2297 | (name, ch, all) | |
2298 | Lisp_Object name, ch, all; | |
0d407d77 | 2299 | { |
1337ac77 | 2300 | int c; |
0fdf26e6 KH |
2301 | Lisp_Object fontset, elt, list, repertory, val; |
2302 | int i, j; | |
0d407d77 KH |
2303 | |
2304 | fontset = check_fontset_name (name); | |
2305 | ||
06f76f0d | 2306 | CHECK_CHARACTER (ch); |
0d407d77 | 2307 | c = XINT (ch); |
0fdf26e6 KH |
2308 | list = Qnil; |
2309 | while (1) | |
2310 | { | |
2311 | for (i = 0, elt = FONTSET_REF (fontset, c); i < 2; | |
2312 | i++, elt = FONTSET_FALLBACK (fontset)) | |
2313 | if (VECTORP (elt)) | |
2314 | for (j = 0; j < ASIZE (elt); j++) | |
2315 | { | |
2316 | val = AREF (elt, j); | |
2317 | repertory = AREF (val, 1); | |
2318 | if (INTEGERP (repertory)) | |
2319 | { | |
2320 | struct charset *charset = CHARSET_FROM_ID (XINT (repertory)); | |
2321 | ||
2322 | if (! CHAR_CHARSET_P (c, charset)) | |
2323 | continue; | |
2324 | } | |
2325 | else if (CHAR_TABLE_P (repertory)) | |
2326 | { | |
2327 | if (NILP (CHAR_TABLE_REF (repertory, c))) | |
2328 | continue; | |
2329 | } | |
2330 | val = AREF (val, 0); | |
2331 | val = Fcons (AREF (val, 0), AREF (val, 5)); | |
2332 | if (NILP (all)) | |
2333 | return val; | |
2334 | list = Fcons (val, list); | |
2335 | } | |
2336 | if (EQ (fontset, Vdefault_fontset)) | |
2337 | break; | |
2338 | fontset = Vdefault_fontset; | |
2339 | } | |
2340 | return (Fnreverse (list)); | |
0d407d77 | 2341 | } |
0d407d77 KH |
2342 | |
2343 | DEFUN ("fontset-list", Ffontset_list, Sfontset_list, 0, 0, 0, | |
335c5470 PJ |
2344 | doc: /* Return a list of all defined fontset names. */) |
2345 | () | |
0d407d77 KH |
2346 | { |
2347 | Lisp_Object fontset, list; | |
2348 | int i; | |
2349 | ||
2350 | list = Qnil; | |
2351 | for (i = 0; i < ASIZE (Vfontset_table); i++) | |
2352 | { | |
2353 | fontset = FONTSET_FROM_ID (i); | |
2354 | if (!NILP (fontset) | |
2355 | && BASE_FONTSET_P (fontset)) | |
2356 | list = Fcons (FONTSET_NAME (fontset), list); | |
2357 | } | |
1ff005e1 | 2358 | |
0d407d77 KH |
2359 | return list; |
2360 | } | |
2361 | ||
452a78e0 KH |
2362 | |
2363 | #ifdef FONTSET_DEBUG | |
2364 | ||
2365 | Lisp_Object | |
2366 | dump_fontset (fontset) | |
2367 | Lisp_Object fontset; | |
2368 | { | |
2369 | Lisp_Object vec; | |
2370 | ||
2371 | vec = Fmake_vector (make_number (3), Qnil); | |
2372 | ASET (vec, 0, FONTSET_ID (fontset)); | |
2373 | ||
2374 | if (BASE_FONTSET_P (fontset)) | |
2375 | { | |
2376 | ASET (vec, 1, FONTSET_NAME (fontset)); | |
2377 | } | |
2378 | else | |
2379 | { | |
2380 | Lisp_Object frame; | |
2381 | ||
2382 | frame = FONTSET_FRAME (fontset); | |
2383 | if (FRAMEP (frame)) | |
2384 | { | |
2385 | FRAME_PTR f = XFRAME (frame); | |
2386 | ||
2387 | if (FRAME_LIVE_P (f)) | |
1c82b4b3 KH |
2388 | ASET (vec, 1, |
2389 | Fcons (FONTSET_NAME (FONTSET_BASE (fontset)), f->name)); | |
452a78e0 | 2390 | else |
1c82b4b3 KH |
2391 | ASET (vec, 1, |
2392 | Fcons (FONTSET_NAME (FONTSET_BASE (fontset)), Qnil)); | |
452a78e0 | 2393 | } |
eb36588a KH |
2394 | if (!NILP (FONTSET_DEFAULT (fontset))) |
2395 | ASET (vec, 2, FONTSET_ID (FONTSET_DEFAULT (fontset))); | |
452a78e0 KH |
2396 | } |
2397 | return vec; | |
2398 | } | |
2399 | ||
2400 | DEFUN ("fontset-list-all", Ffontset_list_all, Sfontset_list_all, 0, 0, 0, | |
2401 | doc: /* Return a brief summary of all fontsets for debug use. */) | |
2402 | () | |
2403 | { | |
2404 | Lisp_Object val; | |
2405 | int i; | |
2406 | ||
2407 | for (i = 0, val = Qnil; i < ASIZE (Vfontset_table); i++) | |
2408 | if (! NILP (AREF (Vfontset_table, i))) | |
2409 | val = Fcons (dump_fontset (AREF (Vfontset_table, i)), val); | |
2410 | return (Fnreverse (val)); | |
2411 | } | |
2412 | #endif /* FONTSET_DEBUG */ | |
2413 | ||
dfcf069d | 2414 | void |
4ed46869 KH |
2415 | syms_of_fontset () |
2416 | { | |
4ed46869 KH |
2417 | if (!load_font_func) |
2418 | /* Window system initializer should have set proper functions. */ | |
2419 | abort (); | |
2420 | ||
1d5d7200 | 2421 | DEFSYM (Qfontset, "fontset"); |
eb36588a | 2422 | Fput (Qfontset, Qchar_table_extra_slots, make_number (9)); |
d6aaac9e KH |
2423 | DEFSYM (Qfontset_info, "fontset-info"); |
2424 | Fput (Qfontset_info, Qchar_table_extra_slots, make_number (1)); | |
4ed46869 | 2425 | |
1d5d7200 KH |
2426 | DEFSYM (Qprepend, "prepend"); |
2427 | DEFSYM (Qappend, "append"); | |
c3fb88cc | 2428 | DEFSYM (Qlatin, "latin"); |
4ed46869 KH |
2429 | |
2430 | Vcached_fontset_data = Qnil; | |
2431 | staticpro (&Vcached_fontset_data); | |
2432 | ||
0d407d77 KH |
2433 | Vfontset_table = Fmake_vector (make_number (32), Qnil); |
2434 | staticpro (&Vfontset_table); | |
0d407d77 KH |
2435 | |
2436 | Vdefault_fontset = Fmake_char_table (Qfontset, Qnil); | |
2437 | staticpro (&Vdefault_fontset); | |
1ff005e1 KH |
2438 | FONTSET_ID (Vdefault_fontset) = make_number (0); |
2439 | FONTSET_NAME (Vdefault_fontset) | |
2440 | = build_string ("-*-*-*-*-*-*-*-*-*-*-*-*-fontset-default"); | |
1ff005e1 KH |
2441 | AREF (Vfontset_table, 0) = Vdefault_fontset; |
2442 | next_fontset_id = 1; | |
4ed46869 | 2443 | |
452a78e0 KH |
2444 | auto_fontset_alist = Qnil; |
2445 | staticpro (&auto_fontset_alist); | |
2446 | ||
4ed46869 | 2447 | DEFVAR_LISP ("font-encoding-alist", &Vfont_encoding_alist, |
1d5d7200 KH |
2448 | doc: /* |
2449 | Alist of fontname patterns vs the corresponding encoding and repertory info. | |
2450 | Each element looks like (REGEXP . (ENCODING . REPERTORY)), | |
2451 | where ENCODING is a charset or a char-table, | |
8f924df7 | 2452 | and REPERTORY is a charset, a char-table, or nil. |
1d5d7200 KH |
2453 | |
2454 | ENCODING is for converting a character to a glyph code of the font. | |
2455 | If ENCODING is a charset, encoding a character by the charset gives | |
2456 | the corresponding glyph code. If ENCODING is a char-table, looking up | |
2457 | the table by a character gives the corresponding glyph code. | |
2458 | ||
2459 | REPERTORY specifies a repertory of characters supported by the font. | |
2460 | If REPERTORY is a charset, all characters beloging to the charset are | |
2461 | supported. If REPERTORY is a char-table, all characters who have a | |
2462 | non-nil value in the table are supported. It REPERTORY is nil, Emacs | |
2463 | gets the repertory information by an opened font and ENCODING. */); | |
4ed46869 KH |
2464 | Vfont_encoding_alist = Qnil; |
2465 | ||
6a7e6d80 | 2466 | DEFVAR_LISP ("use-default-ascent", &Vuse_default_ascent, |
1d5d7200 KH |
2467 | doc: /* |
2468 | Char table of characters whose ascent values should be ignored. | |
335c5470 PJ |
2469 | If an entry for a character is non-nil, the ascent value of the glyph |
2470 | is assumed to be what specified by _MULE_DEFAULT_ASCENT property of a font. | |
2471 | ||
2472 | This affects how a composite character which contains | |
2473 | such a character is displayed on screen. */); | |
2aeafb78 KH |
2474 | Vuse_default_ascent = Qnil; |
2475 | ||
2476 | DEFVAR_LISP ("ignore-relative-composition", &Vignore_relative_composition, | |
1d5d7200 KH |
2477 | doc: /* |
2478 | Char table of characters which is not composed relatively. | |
335c5470 PJ |
2479 | If an entry for a character is non-nil, a composition sequence |
2480 | which contains that character is displayed so that | |
2481 | the glyph of that character is put without considering | |
2482 | an ascent and descent value of a previous character. */); | |
810abb87 | 2483 | Vignore_relative_composition = Qnil; |
6a7e6d80 | 2484 | |
01d4b817 | 2485 | DEFVAR_LISP ("alternate-fontname-alist", &Valternate_fontname_alist, |
335c5470 PJ |
2486 | doc: /* Alist of fontname vs list of the alternate fontnames. |
2487 | When a specified font name is not found, the corresponding | |
2488 | alternate fontnames (if any) are tried instead. */); | |
01d4b817 | 2489 | Valternate_fontname_alist = Qnil; |
8c83e4f9 | 2490 | |
1c283e35 | 2491 | DEFVAR_LISP ("fontset-alias-alist", &Vfontset_alias_alist, |
335c5470 | 2492 | doc: /* Alist of fontset names vs the aliases. */); |
1ff005e1 KH |
2493 | Vfontset_alias_alist = Fcons (Fcons (FONTSET_NAME (Vdefault_fontset), |
2494 | build_string ("fontset-default")), | |
2495 | Qnil); | |
1c283e35 | 2496 | |
810abb87 KH |
2497 | DEFVAR_LISP ("vertical-centering-font-regexp", |
2498 | &Vvertical_centering_font_regexp, | |
335c5470 PJ |
2499 | doc: /* *Regexp matching font names that require vertical centering on display. |
2500 | When a character is displayed with such fonts, the character is displayed | |
fc8865fc | 2501 | at the vertical center of lines. */); |
810abb87 KH |
2502 | Vvertical_centering_font_regexp = Qnil; |
2503 | ||
21ff5ed6 KH |
2504 | DEFVAR_LISP ("otf-script-alist", &Votf_script_alist, |
2505 | doc: /* Alist of OpenType script tags vs the corresponding script names. */); | |
2506 | Votf_script_alist = Qnil; | |
2507 | ||
4ed46869 KH |
2508 | defsubr (&Squery_fontset); |
2509 | defsubr (&Snew_fontset); | |
2510 | defsubr (&Sset_fontset_font); | |
2511 | defsubr (&Sfont_info); | |
1ff005e1 | 2512 | defsubr (&Sinternal_char_font); |
4ed46869 | 2513 | defsubr (&Sfontset_info); |
0d407d77 KH |
2514 | defsubr (&Sfontset_font); |
2515 | defsubr (&Sfontset_list); | |
452a78e0 KH |
2516 | #ifdef FONTSET_DEBUG |
2517 | defsubr (&Sfontset_list_all); | |
2518 | #endif | |
e3400864 | 2519 | } |
92c15c34 KH |
2520 | |
2521 | /* arch-tag: ea861585-2f5f-4e5b-9849-d04a9c3a3537 | |
2522 | (do not change this comment) */ |