1 /* fontset.c -- fontset module.
2 Copyright (C) 2003, 2004
3 National Institute of Advanced Industrial Science and Technology (AIST)
4 Registration Number H15PRO112
6 This file is part of the m17n library.
8 The m17n library is free software; you can redistribute it and/or
9 modify it under the terms of the GNU Lesser General Public License
10 as published by the Free Software Foundation; either version 2.1 of
11 the License, or (at your option) any later version.
13 The m17n library is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public
19 License along with the m17n library; if not, write to the Free
20 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
24 @addtogroup m17nFontset
25 @brief A fontset is an object that maps a character to fonts.
27 A @e fontset is an object of the type @c MFontset. When drawing an
28 M-text, a fontset provides rules to select a font for each
29 character in the M-text according to the following information.
31 @li The script character property of a character.
32 @li The language text property of a character.
33 @li The charset text property of a character.
35 The documentation of mdraw_text () describes how that information is
38 /***ja @addtogroup m17nFontset
40 @brief ¥Õ¥©¥ó¥È¥»¥Ã¥È¤Ïʸ»ú¤«¤é¥Õ¥©¥ó¥È¤Ø¤ÎÂбþÉÕ¤±¤ò¹Ô¤¦¥ª¥Ö¥¸¥§¥¯¥È¤Ç¤¢¤ë.
42 @e ¥Õ¥©¥ó¥È¥»¥Ã¥È ¤Ï @c MFontset ·¿¤Î¥ª¥Ö¥¸¥§¥¯¥È¤Ç¤¢¤ë¡£M-text ¤ò
43 ɽ¼¨¤¹¤ëºÝ¡¢¥Õ¥©¥ó¥È¥»¥Ã¥È¤Ï M-text Ãæ¤Î¸Ä¡¹¤Îʸ»ú¤ËÂФ·¤Æ¤É¤Î¥Õ¥©
44 ¥ó¥È¤òÍѤ¤¤ë¤«¤Îµ¬Â§¤ò¡¢°Ê²¼¤Î¾ðÊó¤Ë½¾¤Ã¤ÆÍ¿¤¨¤ë¡£
46 @li ʸ»ú¤Îʸ»ú¥×¥í¥Ñ¥Æ¥£ "¥¹¥¯¥ê¥×¥È"
47 @li ʸ»ú¤Î¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£ "¸À¸ì"
48 @li ʸ»ú¤Î¥Æ¥¥¹¥È¥×¥í¥Ñ¥Æ¥£ "ʸ»ú¥»¥Ã¥È"
50 ¤³¤ì¤é¤Î¾ðÊ󤬤ɤΤ褦¤ËÍѤ¤¤é¤ì¤ë¤«¤Ï mdraw_text () ¤ÎÀâÌÀ¤ò»²¾È
57 #if !defined (FOR_DOXYGEN) || defined (DOXYGEN_INTERNAL_MODULE)
58 /*** @addtogroup m17nInternal
67 #include "m17n-misc.h"
71 #include "character.h"
73 #include "internal-gui.h"
81 /* Name of the fontset. */
84 /* Initialized to 0, and incremented by one each time the fontset is
88 /* Database from which to load the contents of the fontset. Once
89 loaded, this member is set to NULL. */
92 /* SCRIPT vs PER-LANGUAGE (which is a plist LANGUAGE vs FONT-GROUP) */
95 /* CHARSET vs FONT-GROUP */
101 /* Plist of Mt vs font specs. */
102 MPlist *font_spec_list;
105 static MFontset *default_fontset;
107 static MPlist *fontset_list;
109 struct MRealizedFontset
111 /* Fontset from which the realized fontset is realized. */
114 /* Initialized to <fontset>->tick. */
117 /* Font spec extracted from a face. */
120 /* The frame on which the realized fontset is realized. */
132 load_font_group (MPlist *plist, MPlist *elt, MPlist *spec_list)
136 /* ELT ::= ( FONT-SPEC-LIST [ LAYOUTER ] ) ... */
138 MFont font, *spec = NULL;
139 MSymbol layouter_name;
141 if (! MPLIST_PLIST_P (elt))
142 MWARNING (MERROR_FONTSET);
143 elt2 = MPLIST_PLIST (elt);
144 if (! MPLIST_PLIST_P (elt2))
145 MWARNING (MERROR_FONTSET);
146 mfont__set_spec_from_plist (&font, MPLIST_PLIST (elt2));
147 MPLIST_DO (p, spec_list)
149 if (! memcmp (MPLIST_VAL (p), &font, sizeof (MFont)))
151 spec = MPLIST_VAL (p);
157 MSTRUCT_MALLOC (spec, MERROR_FONTSET);
159 mplist_add (spec_list, Mt, spec);
161 elt2 = MPLIST_NEXT (elt2);
163 if (MPLIST_SYMBOL_P (elt2))
164 layouter_name = MPLIST_SYMBOL (elt2);
165 if (layouter_name == Mnil)
167 plist = mplist_add (plist, layouter_name, spec);
170 /* ANSI-C requires some statement after a label. */
176 /* Load FONTSET->per_script from the data in FONTSET->mdb. */
179 load_fontset_contents (MFontset *fontset)
181 MPlist *per_script, *per_charset, *fallback, *spec_list, *font_group;
182 MSymbol script, lang;
183 MPlist *fontset_def, *plist;
185 fontset->per_script = per_script = mplist ();
186 fontset->per_charset = per_charset = mplist ();
187 fontset->fallback = fallback = mplist ();
188 fontset->font_spec_list = spec_list = mplist ();
189 if (! (fontset_def = (MPlist *) mdatabase_load (fontset->mdb)))
192 MPLIST_DO (plist, fontset_def)
194 /* PLIST ::= ( SCRIPT ( LANGUAGE FONT-SPEC-ELT ... ) ... )
195 | (CHARSET FONT-SPEC-ELT ...)
199 if (! MPLIST_PLIST_P (plist))
200 MWARNING (MERROR_FONTSET);
201 elt = MPLIST_PLIST (plist);
202 if (! MPLIST_SYMBOL_P (elt))
203 MWARNING (MERROR_FONTSET);
204 script = MPLIST_SYMBOL (elt);
205 elt = MPLIST_NEXT (elt);
206 if (! MPLIST_PLIST_P (elt))
207 MWARNING (MERROR_FONTSET);
209 fallback = load_font_group (fallback, elt, spec_list);
210 else if (MPLIST_PLIST_P (MPLIST_PLIST (elt)))
212 font_group = mplist_find_by_key (fontset->per_charset, script);
215 font_group = mplist ();
216 per_charset = mplist_add (per_charset, script, font_group);
218 load_font_group (font_group, elt, spec_list);
222 MPlist *per_lang = mplist_find_by_key (fontset->per_script, script);
226 per_lang = mplist ();
227 per_script = mplist_add (per_script, script, per_lang);
232 /* ELT ::= ( LANGUAGE FONT-DEF ...) ... */
235 if (! MPLIST_PLIST_P (elt))
236 MWARNING (MERROR_FONTSET);
237 elt2 = MPLIST_PLIST (elt);
238 if (! MPLIST_SYMBOL_P (elt2))
239 MWARNING (MERROR_FONTSET);
240 lang = MPLIST_SYMBOL (elt2);
243 font_group = mplist_find_by_key (per_lang, lang);
246 font_group = mplist ();
247 mplist_add (per_lang, lang, font_group);
249 elt2 = MPLIST_NEXT (elt2);
250 load_font_group (font_group, elt2, spec_list);
256 /* ANSI-C requires some statement after a label. */
260 M17N_OBJECT_UNREF (fontset_def);
265 free_fontset (void *object)
267 MFontset *fontset = (MFontset *) object;
268 MPlist *plist, *pl, *p;
270 if (fontset->per_script)
272 MPLIST_DO (plist, fontset->per_script)
274 MPLIST_DO (pl, MPLIST_PLIST (plist))
276 p = MPLIST_PLIST (pl);
277 M17N_OBJECT_UNREF (p);
279 pl = MPLIST_PLIST (plist);
280 M17N_OBJECT_UNREF (pl);
282 M17N_OBJECT_UNREF (fontset->per_script);
284 if (fontset->per_charset)
286 MPLIST_DO (plist, fontset->per_charset)
288 pl = MPLIST_PLIST (plist);
289 M17N_OBJECT_UNREF (pl);
291 M17N_OBJECT_UNREF (fontset->per_charset);
293 if (fontset->fallback)
294 M17N_OBJECT_UNREF (fontset->fallback);
295 plist = mplist_find_by_key (fontset_list, fontset->name);
299 if (fontset->font_spec_list)
301 if (((M17NObject *) (fontset->font_spec_list))->ref_count == 1)
302 MPLIST_DO (plist, fontset->font_spec_list)
303 free (MPLIST_VAL (plist));
304 M17N_OBJECT_UNREF (fontset->font_spec_list);
310 realize_font_group (MFrame *frame, MFont *request, MPlist *font_group,
313 MPlist *plist = MPLIST_VAL (font_group), *pl, *p;
315 mplist_set (font_group, Mnil, NULL);
316 MPLIST_DO (pl, plist)
318 MSymbol layouter = MPLIST_KEY (pl);
319 MFont this_request = *request;
320 MRealizedFont *rfont;
322 mfont__resize (MPLIST_VAL (pl), &this_request);
323 rfont = mfont__select (frame, MPLIST_VAL (pl), &this_request,
324 size, layouter == Mt ? Mnil : layouter);
328 MPLIST_DO (p, font_group)
329 if (((MRealizedFont *) (MPLIST_VAL (p)))->score > rfont->score)
331 mplist_push (p, Mt, rfont);
341 mfont__fontset_init ()
343 Mfontset = msymbol ("fontset");
344 Mfontset->managing_key = 1;
345 fontset_list = mplist ();
346 default_fontset = mfontset ("default");
347 if (! default_fontset->mdb)
352 mfont_put_prop (&font, Mregistry, msymbol ("iso8859-1"));
353 mfontset_modify_entry (default_fontset, Mnil, Mnil, Mnil,
355 mfont_put_prop (&font, Mregistry, msymbol ("iso10646-1"));
356 mfontset_modify_entry (default_fontset, Mnil, Mnil, Mnil,
364 mfont__fontset_fini ()
366 while (! MPLIST_TAIL_P (fontset_list))
367 free_fontset ((MFontset *) MPLIST_VAL (fontset_list));
368 M17N_OBJECT_UNREF (fontset_list);
374 mfont__realize_fontset (MFrame *frame, MFontset *fontset, MFace *face)
376 MRealizedFontset *realized;
378 MPlist *per_script, *per_lang, *per_charset, *font_group;
379 MPlist *plist, *pl, *p;
382 load_fontset_contents (fontset);
384 mfont__set_spec_from_face (&request, face);
385 if (request.property[MFONT_SIZE] <= 0)
388 request.property[MFONT_SIZE] = 120;
390 MPLIST_DO (p, frame->realized_fontset_list)
392 realized = (MRealizedFontset *) MPLIST_VAL (p);
393 if (fontset->name == MPLIST_KEY (p)
394 && ! memcmp (&request, &realized->spec, sizeof (request)))
398 MSTRUCT_MALLOC (realized, MERROR_FONTSET);
399 realized->fontset = fontset;
400 realized->tick = fontset->tick;
401 realized->spec = request;
402 realized->frame = frame;
403 realized->per_script = per_script = mplist ();
404 MPLIST_DO (plist, fontset->per_script)
406 per_lang = mplist ();
407 per_script = mplist_add (per_script, MPLIST_KEY (plist), per_lang);
408 MPLIST_DO (pl, MPLIST_PLIST (plist))
410 font_group = mplist ();
411 mplist_add (font_group, Mplist, MPLIST_VAL (pl));
412 per_lang = mplist_add (per_lang, MPLIST_KEY (pl), font_group);
416 realized->per_charset = per_charset = mplist ();
417 MPLIST_DO (plist, fontset->per_charset)
419 font_group = mplist ();
420 mplist_add (font_group, Mplist, MPLIST_VAL (plist));
421 per_charset = mplist_add (per_charset, MPLIST_KEY (plist), font_group);
424 realized->fallback = mplist ();
425 mplist_add (realized->fallback, Mplist, fontset->fallback);
427 mplist_add (frame->realized_fontset_list, fontset->name, realized);
433 mfont__free_realized_fontset (MRealizedFontset *realized)
435 MPlist *plist, *pl, *p;
436 MRealizedFont *rfont;
438 if (realized->per_script)
440 MPLIST_DO (plist, realized->per_script)
442 MPLIST_DO (pl, MPLIST_PLIST (plist))
444 MPLIST_DO (p, MPLIST_PLIST (pl))
445 if ((rfont = MPLIST_VAL (p)) && ! rfont->frame)
447 p = MPLIST_PLIST (pl);
448 M17N_OBJECT_UNREF (p);
450 pl = MPLIST_PLIST (plist);
451 M17N_OBJECT_UNREF (pl);
453 M17N_OBJECT_UNREF (realized->per_script);
455 if (realized->per_charset)
457 MPLIST_DO (plist, realized->per_charset)
459 MPLIST_DO (pl, MPLIST_PLIST (plist))
460 if ((rfont = MPLIST_VAL (pl)) && ! rfont->frame)
462 pl = MPLIST_PLIST (plist);
463 M17N_OBJECT_UNREF (pl);
465 M17N_OBJECT_UNREF (realized->per_charset);
467 if (realized->fallback)
469 MPLIST_DO (plist, realized->fallback)
470 if ((rfont = MPLIST_VAL (plist)) && ! rfont->frame)
472 M17N_OBJECT_UNREF (realized->fallback);
480 mfont__lookup_fontset (MRealizedFontset *realized, MGlyph *g, int *num,
481 MSymbol script, MSymbol language, MSymbol charset,
484 MFrame *frame = realized->frame;
485 MCharset *preferred_charset = (charset == Mnil ? NULL : MCHARSET (charset));
486 MPlist *per_charset, *per_script, *per_lang, *font_group;
487 MPlist *font_groups[256], *plist;
488 int n_font_group = 0;
489 MRealizedFont *first = NULL, *rfont;
493 if (preferred_charset
494 && (per_charset = mplist_get (realized->per_charset, charset)) != NULL)
495 font_groups[n_font_group++] = per_charset;
497 && ((per_script = mplist_find_by_key (realized->per_script, script))
500 /* The first loop is for matching language (if any), and the second
501 loop is for non-matching languages. */
502 if (language == Mnil)
504 for (i = 0; i < 2; i++)
506 MPLIST_DO (per_lang, MPLIST_PLIST (per_script))
507 if ((MPLIST_KEY (per_lang) == language) != i)
508 font_groups[n_font_group++] = MPLIST_PLIST (per_lang);
511 font_groups[n_font_group++] = realized->fallback;
513 if (n_font_group == 1)
515 /* As we only have a fallback font group, try all the other
517 MPLIST_DO (per_script, realized->per_script)
518 MPLIST_DO (per_lang, MPLIST_PLIST (per_script))
519 font_groups[n_font_group++] = MPLIST_PLIST (per_lang);
520 MPLIST_DO (per_charset, realized->per_charset)
521 font_groups[n_font_group++] = MPLIST_PLIST (per_charset);
524 for (i = 0; i < n_font_group; i++)
528 if (MPLIST_PLIST_P (font_groups[i]))
529 realize_font_group (frame, &realized->spec, font_groups[i], size);
531 MPLIST_DO (plist, font_groups[i])
533 rfont = (MRealizedFont *) MPLIST_VAL (plist);
534 g->code = mfont__encode_char (rfont, g->c);
535 if (g->code != MCHAR_INVALID_CODE)
538 if (MPLIST_TAIL_P (plist))
540 for (j = 1; j < *num; j++)
542 g[j].code = mfont__encode_char (rfont, g[j].c);
543 if (g[j].code == MCHAR_INVALID_CODE)
547 first = rfont, first_len = j;
549 /* We found a font that can display all requested
553 MPLIST_DO (plist, MPLIST_NEXT (plist))
555 rfont = (MRealizedFont *) MPLIST_VAL (plist);
556 for (j = 0; j < *num; j++)
558 g[j].code = mfont__encode_char (rfont, g[j].c);
559 if (g[j].code == MCHAR_INVALID_CODE)
565 if (! MPLIST_TAIL_P (plist))
569 if (i == n_font_group)
573 rfont = first, *num = first_len;
574 for (i = 0; i < *num; i++)
575 g[i].code = mfont__encode_char (rfont, g[i].c);
578 && mfont__open (rfont) < 0)
580 MPLIST_VAL (font_group) = NULL;
587 #endif /* !FOR_DOXYGEN || DOXYGEN_INTERNAL_MODULE */
592 /*** @addtogroup m17nFontset */
597 @brief Return a fontset.
599 The mfontset () function returns a pointer to a fontset object of
600 name $NAME. If $NAME is @c NULL, it returns a pointer to the
603 If no fontset has the name $NAME, a new one is created. At that
604 time, if there exists a data \<@c fontset, $NAME\> in the m17n
605 database, the fontset contents are initialized according to the
606 data. If no such data exists, the fontset contents are left
609 The macro M17N_INIT () creates the default fontset. An
610 application program can modify it before the first call of mframe
614 This function returns a pointer to the found or newly created
617 @brief ¥Õ¥©¥ó¥È¥»¥Ã¥È¤òÊÖ¤¹.
619 ´Ø¿ô mfontset ¤Ï̾Á°$ NAME ¤ò»ý¤Ä¥Õ¥©¥ó¥È¥»¥Ã¥È¥ª¥Ö¥¸¥§¥¯¥È¤Ø¤Î¥Ý¥¤
620 ¥ó¥¿¤òÊÖ¤¹¡£ $NAME ¤¬ @c NULL ¤Ê¤é¤Ð¡¢¥Ç¥Õ¥©¥ë¥È¥Õ¥©¥ó¥È¥»¥Ã¥È¤Ø¤Î
623 $NAME ¤È¤¤¤¦Ì¾Á°¤ò»ý¤Ä¥Õ¥©¥ó¥È¥»¥Ã¥È¤¬¤Ê¤±¤ì¤Ð¡¢¿·¤·¤¤¤â¤Î¤¬ºî¤é¤ì
624 ¤ë¡£¤½¤ÎºÝ¡¢m17n ¥Ç¡¼¥¿¥Ù¡¼¥¹¤Ë \<@c fontset, $NAME\> ¤È¤¤¤¦¥Ç¡¼¥¿
625 ¤¬¤¢¤ì¤Ð¡¢¥Õ¥©¥ó¥È¥»¥Ã¥È¤Ï¤½¤Î¥Ç¡¼¥¿¤Ë±è¤Ã¤Æ½é´ü²½¤µ¤ì¤ë¡£¤Ê¤±¤ì¤Ð¡¢
628 ¥Þ¥¯¥í M17N_INIT () ¤Ï¥Ç¥Õ¥©¥ë¥È¤Î¥Õ¥©¥ó¥È¥»¥Ã¥È¤òºî¤ë¡£¥¢¥×¥ê¥±¡¼
629 ¥·¥ç¥ó¥×¥í¥°¥é¥à¤Ï mframe () ¤ò½é¤á¤Æ¸Æ¤Ö¤Þ¤Ç¤Ï¥Ç¥Õ¥©¥ë¥È¥Õ¥©¥ó¥È
630 ¥»¥Ã¥È¤òÊѹ¹¤¹¤ë¤³¤È¤¬¤Ç¤¤ë¡£
633 ¤³¤Î´Ø¿ô¤Ï¸«¤Ä¤«¤Ã¤¿¡¢¤¢¤ë¤¤¤Ïºî¤Ã¤¿¥Õ¥©¥ó¥È¥»¥Ã¥È¤Ø¤Î¥Ý¥¤¥ó¥¿¤òÊÖ¤¹¡£
637 mfontset (char *name)
643 return default_fontset;
644 sym = msymbol (name);
645 fontset = mplist_get (fontset_list, sym);
648 M17N_OBJECT (fontset, free_fontset, MERROR_FONTSET);
650 fontset->mdb = mdatabase_find (Mfontset, sym, Mnil, Mnil);
653 fontset->per_script = mplist ();
654 fontset->per_charset = mplist ();
655 fontset->fallback = mplist ();
657 mplist_put (fontset_list, sym, fontset);
658 M17N_OBJECT_REF (fontset);
665 @brief Return the name of a fontset.
667 The mfontset_name () function returns the name of fontset$FONTSET. */
669 @brief ¥Õ¥©¥ó¥È¥»¥Ã¥È¤Î̾Á°¤òÊÖ¤¹.
671 ´Ø¿ô mfontset_name () ¤Ï¥Õ¥©¥ó¥È¥»¥Ã¥È $FONTSET ¤Î̾Á°¤òÊÖ¤¹¡£ */
673 mfontset_name (MFontset *fontset)
675 return fontset->name;
681 @brief Make a copy a fontset.
683 The mfontset_copy () function makes a copy of fontset $FONTSET, gives it a
684 name $NAME, and returns a pointer to the created copy. $NAME must
685 not be a name of existing fontset. In such case, this function
686 returns NULL without making a copy. */
688 @brief ¥Õ¥©¥ó¥È¥»¥Ã¥È¤Î¥³¥Ô¡¼¤òºî¤ë.
690 ´Ø¿ô mfontset_copy () ¤Ï¥Õ¥©¥ó¥È¥»¥Ã¥È $FONTSET ¤Î¥³¥Ô¡¼¤òºî¤Ã¤Æ¡¢
691 ̾Á° $NAME ¤òÍ¿¤¨¡¢¤½¤Î¥³¥Ô¡¼¤Ø¤Î¥Ý¥¤¥ó¥¿¤òÊÖ¤¹¡£$NAME ¤Ï´û¸¤Î
692 ¥Õ¥©¥ó¥È¥»¥Ã¥È¤Î̾Á°¤Ç¤¢¤Ã¤Æ¤Ï¤Ê¤é¤Ê¤¤¡£¤½¤Î¾ì¹ç¤Ë¤Ï¥³¥Ô¡¼¤òºî¤é¤º
696 mfontset_copy (MFontset *fontset, char *name)
698 MSymbol sym = msymbol (name);
699 MFontset *copy = mplist_get (fontset_list, sym);
704 M17N_OBJECT (copy, free_fontset, MERROR_FONTSET);
707 if (fontset->per_script)
709 copy->per_script = mplist ();
710 MPLIST_DO (plist, fontset->per_script)
712 MPlist *new = mplist ();
714 MPLIST_DO (pl, MPLIST_PLIST (plist))
715 mplist_add (new, MPLIST_KEY (pl), mplist_copy (MPLIST_PLIST (pl)));
716 mplist_add (copy->per_script, MPLIST_KEY (plist), new);
719 if (fontset->per_charset)
721 copy->per_charset = mplist ();
722 MPLIST_DO (plist, fontset->per_charset)
723 mplist_add (copy->per_charset, MPLIST_KEY (plist),
724 mplist_copy (MPLIST_PLIST (plist)));
726 if (fontset->fallback)
727 copy->fallback = mplist_copy (fontset->fallback);
729 copy->font_spec_list = fontset->font_spec_list;
730 M17N_OBJECT_REF (copy->font_spec_list);
732 mplist_put (fontset_list, sym, copy);
733 M17N_OBJECT_REF (copy);
740 @brief Modify the contents of a fontset.
742 The mfontset_modify_entry () function associates, in $FONTSET, a
743 copy of $FONT with the $SCRIPT / $LANGUAGE pair or with $CHARSET.
745 Each font in a fontset is associated with a particular
746 script/language pair, with a particular charset, or with the
747 symbol @c Mnil. The fonts that are associated with the same item
750 If $SCRIPT is not @c Mnil, it must be a symbol identifying a
751 script. In this case, $LANGUAGE is either a symbol identifying a
752 language or @c Mnil, and $FONT is associated with the $SCRIPT /
755 If $CHARSET is not @c Mnil, it must be a symbol representing a
756 charset object. In this case, $FONT is associated with that
759 If both $SCRIPT and $CHARSET are not @c Mnil, two copies of $FONT
760 are created. Then one is associated with the $SCRIPT / $LANGUAGE
761 pair and the other with that charset.
763 If both $SCRIPT and $CHARSET are @c Mnil, $FONT is associated with
764 @c Mnil. This kind of fonts are called @e fallback @e fonts.
766 The argument $HOW specifies the priority of $FONT. If $HOW is
767 positive, $FONT has the highest priority in the group of fonts
768 that are associated with the same item. If $HOW is negative,
769 $FONT has the lowest priority. If $HOW is zero, $FONT becomes the
770 only available font for the associated item; all the other fonts
771 are removed from the group.
773 If $LAYOUTER_NAME is not @c Mnil, it must be a symbol
774 representing a @ref flt. In that case, if $FONT is selected for
775 drawing an M-text, that font layout table is used to generate a
776 glyph code sequence from a character sequence.
779 If the operation was successful, mfontset_modify_entry () returns 0.
780 Otherwise it returns -1 and assigns an error code to the external
781 variable @c merror_code. */
784 @brief ¥Õ¥©¥ó¥È¥»¥Ã¥È¤ÎÆâÍƤòÊѹ¹¤¹¤ë.
786 ´Ø¿ô The mfontset_modify_entry () ¤Ï¡¢$LANGUAGE ¤È $SCRIPT ¤ÎÁȤß
787 ¹ç¤ï¤»¤Þ¤¿¤Ï $CHARSET ¤ËÂФ·¤Æ $FONT ¤Î¥³¥Ô¡¼¤ò»È¤¦¤è¤¦¤Ë¡¢¥Õ¥©¥ó
788 ¥È¥»¥Ã¥È $FONTSET ¤òÀßÄꤹ¤ë¡£
790 ¥Õ¥©¥ó¥È¥»¥Ã¥È¤Î³Æ¥Õ¥©¥ó¥È¤Ï¡¢ÆÃÄê¤Î¥¹¥¯¥ê¥×¥È¤È¸À¸ì¤Î¥Ú¥¢¡¢ÆÃÄê¤Î
791 ʸ»ú¥»¥Ã¥È¡¢¥·¥ó¥Ü¥ë @c Mnil ¤Î¤¤¤º¤ì¤«¤È´ØÏ¢ÉÕ¤±¤é¤ì¤Æ¤¤¤ë¡£Æ±¤¸
792 ¤â¤Î¤È´ØÏ¢ÉÕ¤±¤é¤ì¤¿¥Õ¥©¥ó¥È¤Ï¥°¥ë¡¼¥×¤ò¹½À®¤¹¤ë¡£
794 $SCRIPT ¤Ï @c Mnil ¤Ç¤¢¤ë¤«¡¢¥¹¥¯¥ê¥×¥È¤òÆÃÄꤹ¤ë¥·¥ó¥Ü¥ë¤Ç¤¢¤ë¡£
795 ¥·¥ó¥Ü¥ë¤Ç¤¢¤ë¾ì¹ç¤Ë¤Ï¡¢$LANGUAGE ¤Ï¸À¸ì¤òÆÃÄꤹ¤ë¥·¥ó¥Ü¥ë¤«@c
796 Mnil ¤Ç¤¢¤ê¡¢$FONT ¤Ïthe $SCRIPT / $LANGUAGE ¥Ú¥¢¤Ë´ØÏ¢ÉÕ¤±¤é¤ì¤ë¡£
798 $CHARSET ¤Ï @c Mnil ¤Ç¤¢¤ë¤«¡¢Ê¸»ú¥»¥Ã¥È¥ª¥Ö¥¸¥§¥¯¥È¤òɽ¤¹¥·¥ó¥Ü¥ë
799 ¤Ç¤¢¤ë¡£¥·¥ó¥Ü¥ë¤Ç¤¢¤ë¾ì¹ç¤Ë¤Ï$FONT ¤Ï¤½¤Îʸ»ú¥»¥Ã¥È¤È´ØÏ¢ÉÕ¤±¤é¤ì
802 $SCRIPT ¤È $CHARSET ¤ÎÁÐÊý¤¬ @c Mnil ¤Ç¤Ê¤¤¾ì¹ç¤Ë¤Ï $FONT ¤Î¥³¥Ô¡¼
803 ¤¬£²¤Äºî¤é¤ì¡¢¤½¤ì¤¾¤ì $SCRIPT / $LANGUAGE ¥Ú¥¢¤Èʸ»ú¥»¥Ã¥È¤Ë´ØÏ¢
806 $SCRIPT ¤È $CHARSET ¤ÎÁÐÊý¤¬ @c Mnil ¤Ê¤é¤Ð¡¢ $FONT ¤Ï@c Mnil ¤È´Ø
807 Ï¢ÉÕ¤±¤é¤ì¤ë¡£¤³¤Î¼ï¤Î¥Õ¥©¥ó¥È¤Ï @e fallback @e font ¤È¸Æ¤Ð¤ì¤ë¡£
809 °ú¿ô $HOW ¤Ï $FONT ¤ÎÍ¥ÀèÅÙ¤ò»ØÄꤹ¤ë¡£$HOW ¤¬Àµ¤Ê¤é¤Ð¡¢$FONT ¤ÏƱ
810 ¤¸¤â¤Î¤È´ØÏ¢ÉÕ¤±¤é¤ì¤¿¥°¥ë¡¼¥×Ãæ¤ÇºÇ¹â¤ÎÍ¥ÀèÅÙ¤ò»ý¤Ä¡£$HOW ¤¬Éé¤Ê
811 ¤é¤Ð¡¢ºÇÄã¤ÎÍ¥ÀèÅÙ¤ò»ý¤Ä¡£$HOW ¤¬ 0 ¤Ê¤é¤Ð¡¢$FONT ¤Ï´ØÏ¢ÉÕ¤±¤é¤ì¤¿
812 ¤â¤Î¤ËÂФ¹¤ëÍ£°ì¤ÎÍøÍѲÄǽ¤Ê¥Õ¥©¥ó¥È¤È¤Ê¤ê¡¢Â¾¤Î¥Õ¥©¥ó¥È¤Ï¥°¥ë¡¼¥×
815 $LAYOUTER_NAME ¤Ï @c Mnil ¤Ç¤¢¤ë¤«¡¢@ref flt ¤ò¼¨¤¹¥·¥ó¥Ü¥ë¤Ç¤¢¤ë¡£
816 ¥·¥ó¥Ü¥ë¤Ç¤¢¤ì¤Ð¡¢$FONT ¤òÍѤ¤¤ÆM-text ¤òɽ¼¨¤¹¤ëºÝ¤Ë¤Ï¡¢¤½¤Î font
817 layout table ¤ò»È¤Ã¤Æʸ»úÎ󤫤饰¥ê¥Õ¥³¡¼¥ÉÎó¤òÀ¸À®¤¹¤ë¡£
820 ½èÍý¤¬À®¸ù¤·¤¿¤È¤¡¢mfontset_modify_entry () ¤Ï 0 ¤òÊÖ¤¹¡£
821 ¼ºÇÔ¤·¤¿¤È¤¤Ï -1 ¤òÊÖ¤·¡¢³°ÉôÊÑ¿ô @c merror_code ¤Ë¥¨¥é¡¼¥³¡¼¥É¤ò
829 mfontset_modify_entry (MFontset *fontset,
830 MSymbol script, MSymbol language, MSymbol charset,
831 MFont *spec, MSymbol layouter_name,
834 MPlist *per_lang, *plist[3], *pl;
839 load_fontset_contents (fontset);
841 MPLIST_DO (pl, fontset->font_spec_list)
843 if (! memcmp (MPLIST_VAL (pl), spec, sizeof (MFont)))
845 font = MPLIST_VAL (pl);
853 mplist_add (fontset->font_spec_list, Mt, font);
859 if (language == Mnil)
861 per_lang = mplist_get (fontset->per_script, script);
863 mplist_add (fontset->per_script, script, per_lang = mplist ());
864 plist[i] = mplist_get (per_lang, language);
866 mplist_add (per_lang, language, plist[i] = mplist ());
871 plist[i] = mplist_get (fontset->per_charset, charset);
873 mplist_add (fontset->per_charset, charset, plist[i] = mplist ());
876 if (script == Mnil && charset == Mnil)
878 plist[i++] = fontset->fallback;
881 if (layouter_name == Mnil)
883 for (i--; i >= 0; i--)
886 mplist_push (plist[i], layouter_name, font);
888 mplist_add (plist[i], layouter_name, font);
891 mplist_set (plist[i], Mnil, NULL);
892 mplist_add (plist[i], layouter_name, font);
901 /*** @addtogroup m17nDebug */
906 @brief Dump a fontset.
908 The mdebug_dump_fontset () function prints fontset $FONTSET in a human readable
909 way to the stderr. $INDENT specifies how many columns to indent
910 the lines but the first one.
913 This function returns $FONTSET. */
915 @brief ¥Õ¥©¥ó¥È¥»¥Ã¥È¤ò¥À¥ó¥×¤¹¤ë.
917 ´Ø¿ô mdebug_dump_face () ¤Ï¥Õ¥©¥ó¥È¥»¥Ã¥È $FONTSET ¤ò stderr ¤Ë¿Í
918 ´Ö¤Ë²ÄÆɤʷÁ¤Ç°õºþ¤¹¤ë¡£ $INDENT ¤Ï£²¹ÔÌܰʹߤΥ¤¥ó¥Ç¥ó¥È¤ò»ØÄꤹ
922 ¤³¤Î´Ø¿ô¤Ï $FONTSET ¤òÊÖ¤¹¡£ */
925 mdebug_dump_fontset (MFontset *fontset, int indent)
927 char *prefix = (char *) alloca (indent + 1);
928 MPlist *plist, *pl, *p;
930 memset (prefix, 32, indent);
933 fprintf (stderr, "(fontset %s", fontset->name->name);
934 if (fontset->per_script)
935 MPLIST_DO (plist, fontset->per_script)
937 fprintf (stderr, "\n %s(%s", prefix, MPLIST_KEY (plist)->name);
938 MPLIST_DO (pl, MPLIST_PLIST (plist))
940 fprintf (stderr, "\n %s(%s", prefix, MPLIST_KEY (pl)->name);
941 MPLIST_DO (p, MPLIST_PLIST (pl))
943 fprintf (stderr, "\n %s(%s ", prefix,
944 MPLIST_KEY (p)->name);
945 mdebug_dump_font (MPLIST_VAL (p));
946 fprintf (stderr, ")");
948 fprintf (stderr, ")");
950 fprintf (stderr, ")");
952 if (fontset->per_charset)
953 MPLIST_DO (pl, fontset->per_charset)
955 fprintf (stderr, "\n %s(%s", prefix, MPLIST_KEY (pl)->name);
956 MPLIST_DO (p, MPLIST_PLIST (pl))
958 fprintf (stderr, "\n %s(%s ", prefix, MPLIST_KEY (p)->name);
959 mdebug_dump_font (MPLIST_VAL (p));
960 fprintf (stderr, ")");
962 fprintf (stderr, ")");
965 if (fontset->fallback)
966 MPLIST_DO (p, fontset->fallback)
968 fprintf (stderr, "\n %s(%s ", prefix, MPLIST_KEY (p)->name);
969 mdebug_dump_font (MPLIST_VAL (p));
970 fprintf (stderr, ")");
973 fprintf (stderr, ")");