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;
487 MPlist *font_groups[256], *plist;
488 int n_font_group = 0;
489 MRealizedFont *rfont;
492 if (preferred_charset
493 && (per_charset = mplist_get (realized->per_charset, charset)) != NULL)
494 font_groups[n_font_group++] = per_charset;
496 && ((per_script = mplist_find_by_key (realized->per_script, script))
499 /* The first loop is for matching language (if any), and the second
500 loop is for non-matching languages. */
501 if (language == Mnil)
503 for (i = 0; i < 2; i++)
505 MPLIST_DO (per_lang, MPLIST_PLIST (per_script))
506 if ((MPLIST_KEY (per_lang) == language) != i)
507 font_groups[n_font_group++] = MPLIST_PLIST (per_lang);
510 font_groups[n_font_group++] = realized->fallback;
512 if (n_font_group == 1)
514 /* As we only have a fallback font group, try all the other
516 MPLIST_DO (per_script, realized->per_script)
517 MPLIST_DO (per_lang, MPLIST_PLIST (per_script))
518 font_groups[n_font_group++] = MPLIST_PLIST (per_lang);
519 MPLIST_DO (per_charset, realized->per_charset)
520 font_groups[n_font_group++] = MPLIST_PLIST (per_charset);
523 for (i = 0; i < n_font_group; i++)
527 if (MPLIST_PLIST_P (font_groups[i]))
528 realize_font_group (frame, &realized->spec, font_groups[i], size);
530 MPLIST_DO (plist, font_groups[i])
532 rfont = (MRealizedFont *) MPLIST_VAL (plist);
533 if (rfont->status < 0)
535 /* Check if this font can display all glyphs. */
536 for (j = 0; j < *num; j++)
538 g[j].code = mfont__encode_char (rfont, g[j].c);
539 if (g[j].code == MCHAR_INVALID_CODE)
544 if (rfont->status > 0
545 || mfont__open (rfont) == 0)
546 /* We found a font that can display all glyphs. */
550 if (! MPLIST_TAIL_P (plist))
554 if (i < n_font_group)
557 /* We couldn't find a font that can display all glyphs. Find one
558 that can display at least the first glyph. */
559 for (i = 0; i < n_font_group; i++)
561 MPLIST_DO (plist, font_groups[i])
563 rfont = (MRealizedFont *) MPLIST_VAL (plist);
564 if (rfont->status < 0)
566 g->code = mfont__encode_char (rfont, g->c);
567 if (g->code != MCHAR_INVALID_CODE)
569 if (rfont->status > 0
570 || mfont__open (rfont) == 0)
574 if (! MPLIST_TAIL_P (plist))
577 return (i < n_font_group ? rfont : NULL);
581 #endif /* !FOR_DOXYGEN || DOXYGEN_INTERNAL_MODULE */
586 /*** @addtogroup m17nFontset */
591 @brief Return a fontset.
593 The mfontset () function returns a pointer to a fontset object of
594 name $NAME. If $NAME is @c NULL, it returns a pointer to the
597 If no fontset has the name $NAME, a new one is created. At that
598 time, if there exists a data \<@c fontset, $NAME\> in the m17n
599 database, the fontset contents are initialized according to the
600 data. If no such data exists, the fontset contents are left
603 The macro M17N_INIT () creates the default fontset. An
604 application program can modify it before the first call of
608 This function returns a pointer to the found or newly created
611 @brief ¥Õ¥©¥ó¥È¥»¥Ã¥È¤òÊÖ¤¹.
613 ´Ø¿ô mfontset () ¤Ï̾Á° $NAME ¤ò»ý¤Ä¥Õ¥©¥ó¥È¥»¥Ã¥È¥ª¥Ö¥¸¥§¥¯¥È¤Ø¤Î
614 ¥Ý¥¤¥ó¥¿¤òÊÖ¤¹¡£ $NAME ¤¬ @c NULL ¤Ê¤é¤Ð¡¢¥Ç¥Õ¥©¥ë¥È¥Õ¥©¥ó¥È¥»¥Ã¥È
617 $NAME ¤È¤¤¤¦Ì¾Á°¤ò»ý¤Ä¥Õ¥©¥ó¥È¥»¥Ã¥È¤¬¤Ê¤±¤ì¤Ð¡¢¿·¤·¤¤¤â¤Î¤¬ºî¤é¤ì
618 ¤ë¡£¤½¤ÎºÝ¡¢m17n ¥Ç¡¼¥¿¥Ù¡¼¥¹¤Ë \<@c fontset, $NAME\> ¤È¤¤¤¦¥Ç¡¼¥¿
619 ¤¬¤¢¤ì¤Ð¡¢¥Õ¥©¥ó¥È¥»¥Ã¥È¤Ï¤½¤Î¥Ç¡¼¥¿¤Ë±è¤Ã¤Æ½é´ü²½¤µ¤ì¤ë¡£¤Ê¤±¤ì¤Ð¡¢
622 ¥Þ¥¯¥í M17N_INIT () ¤Ï¥Ç¥Õ¥©¥ë¥È¤Î¥Õ¥©¥ó¥È¥»¥Ã¥È¤òºî¤ë¡£¥¢¥×¥ê¥±¡¼
623 ¥·¥ç¥ó¥×¥í¥°¥é¥à¤Ï mframe () ¤ò½é¤á¤Æ¸Æ¤Ö¤Þ¤Ç¤Ï¥Ç¥Õ¥©¥ë¥È¥Õ¥©¥ó¥È
624 ¥»¥Ã¥È¤òÊѹ¹¤¹¤ë¤³¤È¤¬¤Ç¤¤ë¡£
627 ¤³¤Î´Ø¿ô¤Ï¸«¤Ä¤«¤Ã¤¿¡¢¤¢¤ë¤¤¤Ïºî¤Ã¤¿¥Õ¥©¥ó¥È¥»¥Ã¥È¤Ø¤Î¥Ý¥¤¥ó¥¿¤òÊÖ¤¹¡£
631 mfontset (char *name)
637 fontset = default_fontset;
640 sym = msymbol (name);
641 fontset = mplist_get (fontset_list, sym);
644 M17N_OBJECT (fontset, free_fontset, MERROR_FONTSET);
646 fontset->mdb = mdatabase_find (Mfontset, sym, Mnil, Mnil);
649 fontset->per_script = mplist ();
650 fontset->per_charset = mplist ();
651 fontset->fallback = mplist ();
653 mplist_put (fontset_list, sym, fontset);
656 M17N_OBJECT_REF (fontset);
663 @brief Return the name of a fontset.
665 The mfontset_name () function returns the name of fontset $FONTSET. */
667 @brief ¥Õ¥©¥ó¥È¥»¥Ã¥È¤Î̾Á°¤òÊÖ¤¹.
669 ´Ø¿ô mfontset_name () ¤Ï¥Õ¥©¥ó¥È¥»¥Ã¥È $FONTSET ¤Î̾Á°¤òÊÖ¤¹¡£ */
671 mfontset_name (MFontset *fontset)
673 return fontset->name;
679 @brief Make a copy of a fontset.
681 The mfontset_copy () function makes a copy of fontset $FONTSET, gives it a
682 name $NAME, and returns a pointer to the created copy. $NAME must
683 not be a name of existing fontset. In such case, this function
684 returns NULL without making a copy. */
686 @brief ¥Õ¥©¥ó¥È¥»¥Ã¥È¤Î¥³¥Ô¡¼¤òºî¤ë.
688 ´Ø¿ô mfontset_copy () ¤Ï¥Õ¥©¥ó¥È¥»¥Ã¥È $FONTSET ¤Î¥³¥Ô¡¼¤òºî¤Ã¤Æ¡¢
689 ̾Á° $NAME ¤òÍ¿¤¨¡¢¤½¤Î¥³¥Ô¡¼¤Ø¤Î¥Ý¥¤¥ó¥¿¤òÊÖ¤¹¡£$NAME ¤Ï´û¸¤Î
690 ¥Õ¥©¥ó¥È¥»¥Ã¥È¤Î̾Á°¤Ç¤¢¤Ã¤Æ¤Ï¤Ê¤é¤Ê¤¤¡£¤½¤Î¾ì¹ç¤Ë¤Ï¥³¥Ô¡¼¤òºî¤é¤º
694 mfontset_copy (MFontset *fontset, char *name)
696 MSymbol sym = msymbol (name);
697 MFontset *copy = mplist_get (fontset_list, sym);
702 M17N_OBJECT (copy, free_fontset, MERROR_FONTSET);
705 if (fontset->per_script)
707 copy->per_script = mplist ();
708 MPLIST_DO (plist, fontset->per_script)
710 MPlist *new = mplist ();
712 MPLIST_DO (pl, MPLIST_PLIST (plist))
713 mplist_add (new, MPLIST_KEY (pl), mplist_copy (MPLIST_PLIST (pl)));
714 mplist_add (copy->per_script, MPLIST_KEY (plist), new);
717 if (fontset->per_charset)
719 copy->per_charset = mplist ();
720 MPLIST_DO (plist, fontset->per_charset)
721 mplist_add (copy->per_charset, MPLIST_KEY (plist),
722 mplist_copy (MPLIST_PLIST (plist)));
724 if (fontset->fallback)
725 copy->fallback = mplist_copy (fontset->fallback);
727 copy->font_spec_list = fontset->font_spec_list;
728 M17N_OBJECT_REF (copy->font_spec_list);
730 mplist_put (fontset_list, sym, copy);
731 M17N_OBJECT_REF (copy);
738 @brief Modify the contents of a fontset.
740 The mfontset_modify_entry () function associates, in fontset
741 $FONTSET, a copy of $FONT with the $SCRIPT / $LANGUAGE pair or
744 Each font in a fontset is associated with a particular
745 script/language pair, with a particular charset, or with the
746 symbol @c Mnil. The fonts that are associated with the same item
749 If $SCRIPT is not @c Mnil, it must be a symbol identifying a
750 script. In this case, $LANGUAGE is either a symbol identifying a
751 language or @c Mnil, and $FONT is associated with the $SCRIPT /
754 If $CHARSET is not @c Mnil, it must be a symbol representing a
755 charset object. In this case, $FONT is associated with that
758 If both $SCRIPT and $CHARSET are not @c Mnil, two copies of $FONT
759 are created. Then one is associated with the $SCRIPT / $LANGUAGE
760 pair and the other with that charset.
762 If both $SCRIPT and $CHARSET are @c Mnil, $FONT is associated with
763 @c Mnil. This kind of fonts are called @e fallback @e fonts.
765 The argument $HOW specifies the priority of $FONT. If $HOW is
766 positive, $FONT has the highest priority in the group of fonts
767 that are associated with the same item. If $HOW is negative,
768 $FONT has the lowest priority. If $HOW is zero, $FONT becomes the
769 only available font for the associated item; all the other fonts
770 are removed from the group.
772 If $LAYOUTER_NAME is not @c Mnil, it must be a symbol
773 representing a @ref flt. In that case, if $FONT is selected for
774 drawing an M-text, that font layout table is used to generate a
775 glyph code sequence from a character sequence.
778 If the operation was successful, mfontset_modify_entry () returns 0.
779 Otherwise it returns -1 and assigns an error code to the external
780 variable #merror_code. */
783 @brief ¥Õ¥©¥ó¥È¥»¥Ã¥È¤ÎÆâÍƤòÊѹ¹¤¹¤ë.
785 ´Ø¿ô mfontset_modify_entry () ¤Ï¡¢$LANGUAGE ¤È $SCRIPT ¤ÎÁȤ߹ç¤ï
786 ¤»¤Þ¤¿¤Ï $CHARSET ¤ËÂФ·¤Æ $FONT ¤Î¥³¥Ô¡¼¤ò»È¤¦¤è¤¦¤Ë¡¢¥Õ¥©¥ó¥È¥»¥Ã
787 ¥È $FONTSET ¤òÀßÄꤹ¤ë¡£
789 ¥Õ¥©¥ó¥È¥»¥Ã¥È¤Î³Æ¥Õ¥©¥ó¥È¤Ï¡¢ÆÃÄê¤Î¥¹¥¯¥ê¥×¥È¤È¸À¸ì¤Î¥Ú¥¢¡¢ÆÃÄê¤Î
790 ʸ»ú¥»¥Ã¥È¡¢¥·¥ó¥Ü¥ë @c Mnil ¤Î¤¤¤º¤ì¤«¤È´ØÏ¢ÉÕ¤±¤é¤ì¤Æ¤¤¤ë¡£Æ±¤¸
791 ¤â¤Î¤È´ØÏ¢ÉÕ¤±¤é¤ì¤¿¥Õ¥©¥ó¥È¤Ï¥°¥ë¡¼¥×¤ò¹½À®¤¹¤ë¡£
793 $SCRIPT ¤Ï @c Mnil ¤Ç¤¢¤ë¤«¡¢¥¹¥¯¥ê¥×¥È¤òÆÃÄꤹ¤ë¥·¥ó¥Ü¥ë¤Ç¤¢¤ë¡£
794 ¥·¥ó¥Ü¥ë¤Ç¤¢¤ë¾ì¹ç¤Ë¤Ï¡¢$LANGUAGE ¤Ï¸À¸ì¤òÆÃÄꤹ¤ë¥·¥ó¥Ü¥ë¤« @c
795 Mnil ¤Ç¤¢¤ê¡¢$FONT ¤Ïthe $SCRIPT / $LANGUAGE ¥Ú¥¢¤Ë´ØÏ¢ÉÕ¤±¤é¤ì¤ë¡£
797 $CHARSET ¤Ï @c Mnil ¤Ç¤¢¤ë¤«¡¢Ê¸»ú¥»¥Ã¥È¥ª¥Ö¥¸¥§¥¯¥È¤òɽ¤¹¥·¥ó¥Ü¥ë
798 ¤Ç¤¢¤ë¡£¥·¥ó¥Ü¥ë¤Ç¤¢¤ë¾ì¹ç¤Ë¤Ï $FONT ¤Ï¤½¤Îʸ»ú¥»¥Ã¥È¤È´ØÏ¢ÉÕ¤±¤é¤ì
801 $SCRIPT ¤È $CHARSET ¤ÎÁÐÊý¤¬ @c Mnil ¤Ç¤Ê¤¤¾ì¹ç¤Ë¤Ï $FONT ¤Î¥³¥Ô¡¼
802 ¤¬£²¤Äºî¤é¤ì¡¢¤½¤ì¤¾¤ì $SCRIPT / $LANGUAGE ¥Ú¥¢¤Èʸ»ú¥»¥Ã¥È¤Ë´ØÏ¢
805 $SCRIPT ¤È $CHARSET ¤ÎÁÐÊý¤¬ @c Mnil ¤Ê¤é¤Ð¡¢ $FONT ¤Ï @c Mnil ¤È
806 ´ØÏ¢ÉÕ¤±¤é¤ì¤ë¡£¤³¤Î¼ï¤Î¥Õ¥©¥ó¥È¤Ï @e fallback @e font ¤È¸Æ¤Ð¤ì¤ë¡£
808 °ú¿ô $HOW ¤Ï $FONT ¤ÎÍ¥ÀèÅÙ¤ò»ØÄꤹ¤ë¡£$HOW ¤¬Àµ¤Ê¤é¤Ð¡¢$FONT ¤ÏƱ
809 ¤¸¤â¤Î¤È´ØÏ¢ÉÕ¤±¤é¤ì¤¿¥°¥ë¡¼¥×Ãæ¤ÇºÇ¹â¤ÎÍ¥ÀèÅÙ¤ò»ý¤Ä¡£$HOW ¤¬Éé¤Ê
810 ¤é¤Ð¡¢ºÇÄã¤ÎÍ¥ÀèÅÙ¤ò»ý¤Ä¡£$HOW ¤¬ 0 ¤Ê¤é¤Ð¡¢$FONT ¤Ï´ØÏ¢ÉÕ¤±¤é¤ì¤¿
811 ¤â¤Î¤ËÂФ¹¤ëÍ£°ì¤ÎÍøÍѲÄǽ¤Ê¥Õ¥©¥ó¥È¤È¤Ê¤ê¡¢Â¾¤Î¥Õ¥©¥ó¥È¤Ï¥°¥ë¡¼¥×
814 $LAYOUTER_NAME ¤Ï @c Mnil ¤Ç¤¢¤ë¤«¡¢@ref flt ¤ò¼¨¤¹¥·¥ó¥Ü¥ë¤Ç¤¢¤ë¡£
815 ¥·¥ó¥Ü¥ë¤Ç¤¢¤ì¤Ð¡¢$FONT ¤òÍѤ¤¤ÆM-text ¤òɽ¼¨¤¹¤ëºÝ¤Ë¤Ï¡¢¤½¤Î FONT
816 LAYOUT TABLE ¤ò»È¤Ã¤Æʸ»úÎ󤫤饰¥ê¥Õ¥³¡¼¥ÉÎó¤òÀ¸À®¤¹¤ë¡£
819 ½èÍý¤¬À®¸ù¤·¤¿¤È¤¡¢mfontset_modify_entry () ¤Ï 0 ¤òÊÖ¤¹¡£
820 ¼ºÇÔ¤·¤¿¤È¤¤Ï -1 ¤òÊÖ¤·¡¢³°ÉôÊÑ¿ô #merror_code ¤Ë¥¨¥é¡¼¥³¡¼¥É¤ò
828 mfontset_modify_entry (MFontset *fontset,
829 MSymbol script, MSymbol language, MSymbol charset,
830 MFont *spec, MSymbol layouter_name,
833 MPlist *per_lang, *plist[3], *pl;
838 load_fontset_contents (fontset);
840 MPLIST_DO (pl, fontset->font_spec_list)
842 if (! memcmp (MPLIST_VAL (pl), spec, sizeof (MFont)))
844 font = MPLIST_VAL (pl);
852 mplist_add (fontset->font_spec_list, Mt, font);
858 if (language == Mnil)
860 per_lang = mplist_get (fontset->per_script, script);
862 mplist_add (fontset->per_script, script, per_lang = mplist ());
863 plist[i] = mplist_get (per_lang, language);
865 mplist_add (per_lang, language, plist[i] = mplist ());
870 plist[i] = mplist_get (fontset->per_charset, charset);
872 mplist_add (fontset->per_charset, charset, plist[i] = mplist ());
875 if (script == Mnil && charset == Mnil)
877 plist[i++] = fontset->fallback;
880 if (layouter_name == Mnil)
882 for (i--; i >= 0; i--)
885 mplist_push (plist[i], layouter_name, font);
887 mplist_add (plist[i], layouter_name, font);
890 mplist_set (plist[i], Mnil, NULL);
891 mplist_add (plist[i], layouter_name, font);
900 /*** @addtogroup m17nDebug */
905 @brief Dump a fontset.
907 The mdebug_dump_fontset () function prints fontset $FONTSET in a human readable
908 way to the stderr. $INDENT specifies how many columns to indent
909 the lines but the first one.
912 This function returns $FONTSET. */
914 @brief ¥Õ¥©¥ó¥È¥»¥Ã¥È¤ò¥À¥ó¥×¤¹¤ë.
916 ´Ø¿ô mdebug_dump_face () ¤Ï¥Õ¥©¥ó¥È¥»¥Ã¥È $FONTSET ¤ò stderr ¤Ë¿Í
917 ´Ö¤Ë²ÄÆɤʷÁ¤Ç°õºþ¤¹¤ë¡£ $INDENT ¤Ï£²¹ÔÌܰʹߤΥ¤¥ó¥Ç¥ó¥È¤ò»ØÄꤹ
921 ¤³¤Î´Ø¿ô¤Ï $FONTSET ¤òÊÖ¤¹¡£ */
924 mdebug_dump_fontset (MFontset *fontset, int indent)
926 char *prefix = (char *) alloca (indent + 1);
927 MPlist *plist, *pl, *p;
929 memset (prefix, 32, indent);
932 fprintf (stderr, "(fontset %s", fontset->name->name);
933 if (fontset->per_script)
934 MPLIST_DO (plist, fontset->per_script)
936 fprintf (stderr, "\n %s(%s", prefix, MPLIST_KEY (plist)->name);
937 MPLIST_DO (pl, MPLIST_PLIST (plist))
939 fprintf (stderr, "\n %s(%s", prefix, MPLIST_KEY (pl)->name);
940 MPLIST_DO (p, MPLIST_PLIST (pl))
942 fprintf (stderr, "\n %s(%s ", prefix,
943 MPLIST_KEY (p)->name);
944 mdebug_dump_font (MPLIST_VAL (p));
945 fprintf (stderr, ")");
947 fprintf (stderr, ")");
949 fprintf (stderr, ")");
951 if (fontset->per_charset)
952 MPLIST_DO (pl, fontset->per_charset)
954 fprintf (stderr, "\n %s(%s", prefix, MPLIST_KEY (pl)->name);
955 MPLIST_DO (p, MPLIST_PLIST (pl))
957 fprintf (stderr, "\n %s(%s ", prefix, MPLIST_KEY (p)->name);
958 mdebug_dump_font (MPLIST_VAL (p));
959 fprintf (stderr, ")");
961 fprintf (stderr, ")");
964 if (fontset->fallback)
965 MPLIST_DO (p, fontset->fallback)
967 fprintf (stderr, "\n %s(%s ", prefix, MPLIST_KEY (p)->name);
968 mdebug_dump_font (MPLIST_VAL (p));
969 fprintf (stderr, ")");
972 fprintf (stderr, ")");