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comparison src/fontcolor-xlike-inc.c @ 5176:8b2f75cecb89

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rename objects* (.c, .h and .el files) to fontcolor* -------------------- ChangeLog entries follow: -------------------- etc/ChangeLog addition: 2010-02-22 Ben Wing <ben@xemacs.org> * dbxrc.in: Rename objects.c -> fontcolor.c. lisp/ChangeLog addition: 2010-02-22 Ben Wing <ben@xemacs.org> * dumped-lisp.el (preloaded-file-list): * font.el (font-tty-find-closest-color): * fontcolor.el: * fontcolor.el (ws-object-property-1): Removed. * fontcolor.el (fontcolor-property-1): New. * fontcolor.el (font-name): * fontcolor.el (font-ascent): * fontcolor.el (font-descent): * fontcolor.el (font-width): * fontcolor.el (font-height): * fontcolor.el (font-proportional-p): * fontcolor.el (font-properties): * fontcolor.el (font-truename): * fontcolor.el (color-name): * fontcolor.el (color-rgb-components): * x-faces.el: Rename objects.el -> fontcolor.el. lwlib/ChangeLog addition: 2010-02-22 Ben Wing <ben@xemacs.org> * lwlib-colors.h: objects*.h -> fontcolor*.h. man/ChangeLog addition: 2010-02-22 Ben Wing <ben@xemacs.org> * internals/internals.texi (A Summary of the Various XEmacs Modules): * internals/internals.texi (Modules for other Display-Related Lisp Objects): objects*.[ch] -> fontcolor*.[ch]. nt/ChangeLog addition: 2010-02-22 Ben Wing <ben@xemacs.org> * xemacs.dsp: * xemacs.mak: * xemacs.mak (OPT_OBJS): objects*.[ch] -> fontcolor*.[ch]. src/ChangeLog addition: 2010-02-22 Ben Wing <ben@xemacs.org> * EmacsFrame.c: * Makefile.in.in (x_objs): * Makefile.in.in (mswindows_objs): * Makefile.in.in (tty_objs): * Makefile.in.in (gtk_objs): * Makefile.in.in (objs): * console-tty.h: * console-x-impl.h: * console-x-impl.h (struct x_device): * console-x.h: * console-xlike-inc.h: * depend: * device-gtk.c: * device-msw.c: * device-x.c: * device-x.c (x_init_device): * device-x.c (x_finish_init_device): * device.c: * devslots.h (MARKED_SLOT): * emacs.c (main_1): * event-Xt.c: * event-gtk.c: * event-msw.c: * faces.c: * font-mgr.c: * fontcolor-gtk-impl.h: * fontcolor-gtk.c: * fontcolor-gtk.c (syms_of_fontcolor_gtk): * fontcolor-gtk.c (console_type_create_fontcolor_gtk): * fontcolor-gtk.c (vars_of_fontcolor_gtk): * fontcolor-gtk.h: * fontcolor-impl.h: * fontcolor-msw-impl.h: * fontcolor-msw.c: * fontcolor-msw.c (syms_of_fontcolor_mswindows): * fontcolor-msw.c (console_type_create_fontcolor_mswindows): * fontcolor-msw.c (reinit_vars_of_fontcolor_mswindows): * fontcolor-msw.c (vars_of_fontcolor_mswindows): * fontcolor-msw.h: * fontcolor-msw.h (mswindows_color_to_string): * fontcolor-tty-impl.h: * fontcolor-tty.c: * fontcolor-tty.c (syms_of_fontcolor_tty): * fontcolor-tty.c (console_type_create_fontcolor_tty): * fontcolor-tty.c (vars_of_fontcolor_tty): * fontcolor-tty.h: * fontcolor-x-impl.h: * fontcolor-x.c: * fontcolor-x.c (syms_of_fontcolor_x): * fontcolor-x.c (console_type_create_fontcolor_x): * fontcolor-x.c (vars_of_fontcolor_x): * fontcolor-x.c (Xatoms_of_fontcolor_x): * fontcolor-x.h: * fontcolor.c: * fontcolor.c (syms_of_fontcolor): * fontcolor.c (specifier_type_create_fontcolor): * fontcolor.c (reinit_specifier_type_create_fontcolor): * fontcolor.c (reinit_vars_of_fontcolor): * fontcolor.c (vars_of_fontcolor): * fontcolor.h: * fontcolor.h (set_face_boolean_attached_to): * frame-gtk.c: * frame-x.c: * glyphs-eimage.c: * glyphs-gtk.c: * glyphs-msw.c: * glyphs-widget.c: * glyphs-x.c: * glyphs.c: * gtk-glue.c: * gtk-glue.c (xemacs_type_register): * gtk-xemacs.c: * inline.c: * intl-win32.c: * lisp.h: * lrecord.h: * mule-charset.c: * native-gtk-toolbar.c: * redisplay-msw.c: * redisplay-tty.c: * redisplay.c: * select-x.c: * select.c: * symsinit.h: * toolbar-msw.c: * toolbar-msw.c (TOOLBAR_ITEM_ID_BITS): * toolbar-x.c: * ui-gtk.c: * window.c: Rename objects*.[ch] -> fontcolor*.[ch]. Fix up all references to the old files (e.g. in #include statements, Makefiles, functions like syms_of_objects_x(), etc.). tests/ChangeLog addition: 2010-02-22 Ben Wing <ben@xemacs.org> * reproduce-crashes.el (8): objects*.[ch] -> fontcolor*.[ch].
author Ben Wing <ben@xemacs.org>
date Mon, 22 Feb 2010 06:49:30 -0600
parents src/objects-xlike-inc.c@d95c102a96d3
children b65692aa90d8
comparison
equal deleted inserted replaced
5175:dc94bf0afa37 5176:8b2f75cecb89
1 /* Common code between X and GTK -- fonts and colors.
2 Copyright (C) 1991-5, 1997 Free Software Foundation, Inc.
3 Copyright (C) 1995 Sun Microsystems, Inc.
4 Copyright (C) 1996, 2001, 2002, 2003, 2010 Ben Wing.
5
6 This file is part of XEmacs.
7
8 XEmacs is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published by the
10 Free Software Foundation; either version 2, or (at your option) any
11 later version.
12
13 XEmacs is distributed in the hope that it will be useful, but WITHOUT
14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with XEmacs; see the file COPYING. If not, write to
20 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
21 Boston, MA 02111-1307, USA. */
22
23 /* Synched up with: Not in FSF. */
24
25 /* Before including this file, you need to define either THIS_IS_X or
26 THIS_IS_GTK. */
27
28 /* See comment at top of console-xlike-inc.h for an explanation of
29 how this file works. */
30
31 /* Pango is ready for prime-time now, as far as I understand it. The GTK
32 people should be using that. Oh well. (Aidan Kehoe, Sat Nov 4 12:41:12
33 CET 2006) */
34
35 #include "console-xlike-inc.h"
36
37 #if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901)
38
39 #ifdef DEBUG_XEMACS
40 # define DEBUG_OBJECTS(FORMAT, ...) \
41 do { if (debug_x_objects) stderr_out(FORMAT, __VA_ARGS__); } while (0)
42 #else /* DEBUG_XEMACS */
43 # define DEBUG_OBJECTS(format, ...)
44 #endif /* DEBUG_XEMACS */
45
46 #elif defined(__GNUC__)
47
48 #ifdef DEBUG_XEMACS
49 # define DEBUG_OBJECTS(format, args...) \
50 do { if (debug_x_objects) stderr_out(format, args ); } while (0)
51 #else /* DEBUG_XEMACS */
52 # define DEBUG_OBJECTS(format, args...)
53 #endif /* DEBUG_XEMACS */
54
55 #else /* defined(__STDC_VERSION__) [...] */
56 # define DEBUG_OBJECTS (void)
57 #endif
58
59 #ifdef MULE
60
61 /* For some code it's reasonable to have only one copy and conditionalize
62 at run-time. For other code it isn't. */
63
64 static int
65 count_hyphens(const Ibyte *str, Bytecount length, Ibyte **last_hyphen)
66 {
67 int hyphen_count = 0;
68 const Ibyte *hyphening = str;
69 const Ibyte *new_hyphening;
70
71 for (hyphen_count = 0;
72 NULL != (new_hyphening = (Ibyte *) memchr((const void *)hyphening, '-', length));
73 hyphen_count++)
74 {
75 ++new_hyphening;
76 length -= new_hyphening - hyphening;
77 hyphening = new_hyphening;
78 }
79
80 if (NULL != last_hyphen)
81 {
82 *last_hyphen = (Ibyte *)hyphening;
83 }
84
85 return hyphen_count;
86 }
87
88 static int
89 XFUN (font_spec_matches_charset) (struct device * USED_IF_XFT (d),
90 Lisp_Object charset,
91 const Ibyte *nonreloc, Lisp_Object reloc,
92 Bytecount offset, Bytecount length,
93 enum font_specifier_matchspec_stages stage)
94 {
95 Lisp_Object registries = Qnil;
96 long i, registries_len;
97 const Ibyte *the_nonreloc;
98 Bytecount the_length;
99
100 the_nonreloc = nonreloc;
101 the_length = length;
102
103 if (!the_nonreloc)
104 the_nonreloc = XSTRING_DATA (reloc);
105 fixup_internal_substring (nonreloc, reloc, offset, &the_length);
106 the_nonreloc += offset;
107
108 #ifdef USE_XFT
109 if (stage == STAGE_FINAL)
110 {
111 Display *dpy = DEVICE_X_DISPLAY (d);
112 Extbyte *extname;
113 XftFont *rf;
114 const Ibyte *the_nonreloc;
115
116 if (!NILP(reloc))
117 {
118 the_nonreloc = XSTRING_DATA (reloc);
119 extname = LISP_STRING_TO_EXTERNAL (reloc, Qx_font_name_encoding);
120 rf = xft_open_font_by_name (dpy, extname);
121 return 0; /* #### maybe this will compile and run ;) */
122 /* Jesus, Stephen, what the fuck? */
123 }
124 }
125 #endif
126
127 /* Hmm, this smells bad. */
128 if (NILP (charset))
129 return 1;
130
131 /* Hack! Short font names don't have the registry in them,
132 so we just assume the user knows what they're doing in the
133 case of ASCII. For other charsets, you gotta give the
134 long form; sorry buster.
135 #### FMH: this screws fontconfig/Xft?
136 STRATEGY: use fontconfig's ability to hack languages and character
137 sets (lang and charset properties).
138 #### Maybe we can use the fontconfig model to eliminate the difference
139 between faces and fonts? No - it looks like that would be an abuse
140 (fontconfig doesn't know about colors, although Xft does).
141 */
142 if (EQ (charset, Vcharset_ascii) &&
143 (!memchr (the_nonreloc, '*', the_length))
144 && (5 > (count_hyphens(the_nonreloc, the_length, NULL))))
145 {
146 return 1;
147 }
148
149 if (STAGE_FINAL == stage)
150 {
151 registries = Qunicode_registries;
152 }
153 else if (STAGE_INITIAL == stage)
154 {
155 registries = XCHARSET_REGISTRIES (charset);
156 if (NILP(registries))
157 {
158 return 0;
159 }
160 }
161 else assert(0);
162
163 CHECK_VECTOR (registries);
164 registries_len = XVECTOR_LENGTH(registries);
165
166 for (i = 0; i < registries_len; ++i)
167 {
168 if (!(STRINGP(XVECTOR_DATA(registries)[i]))
169 || (XSTRING_LENGTH(XVECTOR_DATA(registries)[i]) > the_length))
170 {
171 continue;
172 }
173
174 /* Check if the font spec ends in the registry specified. X11 says
175 this comparison is case insensitive: XLFD, section 3.11:
176
177 "Alphabetic case distinctions are allowed but are for human
178 readability concerns only. Conforming X servers will perform
179 matching on font name query or open requests independent of case." */
180 if (0 == qxestrcasecmp(XSTRING_DATA(XVECTOR_DATA(registries)[i]),
181 the_nonreloc + (the_length -
182 XSTRING_LENGTH
183 (XVECTOR_DATA(registries)[i]))))
184 {
185 return 1;
186 }
187 }
188 return 0;
189 }
190
191 static Lisp_Object
192 xlistfonts_checking_charset (Lisp_Object device, const Extbyte *xlfd,
193 Lisp_Object charset,
194 enum font_specifier_matchspec_stages stage)
195 {
196 Extbyte **names;
197 Lisp_Object result = Qnil;
198 int count = 0, i;
199 DECLARE_EISTRING(ei_single_result);
200
201 names = XListFonts (GET_XLIKE_DISPLAY (XDEVICE (device)),
202 xlfd, MAX_FONT_COUNT, &count);
203
204 for (i = 0; i < count; ++i)
205 {
206 eireset(ei_single_result);
207 eicpy_ext(ei_single_result, names[i], Qx_font_name_encoding);
208
209 if (DEVMETH_OR_GIVEN(XDEVICE (device), font_spec_matches_charset,
210 (XDEVICE (device), charset,
211 eidata(ei_single_result), Qnil, 0,
212 -1, stage), 0))
213 {
214 result = eimake_string(ei_single_result);
215 DEBUG_OBJECTS ("in xlistfonts_checking_charset, returning %s\n",
216 eidata(ei_single_result));
217 break;
218 }
219 }
220
221 if (names)
222 {
223 XFreeFontNames (names);
224 }
225
226 return result;
227 }
228
229 #ifdef USE_XFT
230 /* #### debug functions: find a better place for us */
231 const char *FcResultToString (FcResult r);
232 const char *
233 FcResultToString (FcResult r)
234 {
235 static char buffer[256];
236 switch (r)
237 {
238 case FcResultMatch:
239 return "FcResultMatch";
240 case FcResultNoMatch:
241 return "FcResultNoMatch";
242 case FcResultTypeMismatch:
243 return "FcResultTypeMismatch";
244 case FcResultNoId:
245 return "FcResultNoId";
246 default:
247 snprintf (buffer, 255, "FcResultUndocumentedValue (%d)", r);
248 return buffer;
249 }
250 }
251
252 const char *FcTypeOfValueToString (FcValue v);
253 const char *
254 FcTypeOfValueToString (FcValue v)
255 {
256 static char buffer[256];
257 switch (v.type)
258 {
259 case FcTypeMatrix:
260 return "FcTypeMatrix";
261 case FcTypeString:
262 return "FcTypeString";
263 case FcTypeVoid:
264 return "FcTypeVoid";
265 case FcTypeDouble:
266 return "FcTypeDouble";
267 case FcTypeInteger:
268 return "FcTypeInteger";
269 case FcTypeBool:
270 return "FcTypeBool";
271 case FcTypeCharSet:
272 return "FcTypeCharSet";
273 case FcTypeLangSet:
274 return "FcTypeLangSet";
275 /* #### There is no union member of this type, but there are void* and
276 FcPattern* members, as of fontconfig.h FC_VERSION 10002 */
277 case FcTypeFTFace:
278 return "FcTypeFTFace";
279 default:
280 snprintf (buffer, 255, "FcTypeUndocumentedType (%d)", v.type);
281 return buffer;
282 }
283 }
284
285 static FcCharSet *
286 mule_to_fc_charset (Lisp_Object cs)
287 {
288 int ucode, i, j;
289 FcCharSet *fccs;
290
291 CHECK_CHARSET (cs);
292 fccs = FcCharSetCreate ();
293 /* #### do we also need to deal with 94 vs. 96 charsets?
294 ie, how are SP and DEL treated in ASCII? non-graphic should return -1 */
295 if (1 == XCHARSET_DIMENSION (cs))
296 /* Unicode tables are indexed by offsets from ASCII SP, not by ASCII */
297 for (i = 0; i < 96; i++)
298 {
299 ucode = ((int *) XCHARSET_TO_UNICODE_TABLE (cs))[i];
300 if (ucode >= 0)
301 /* #### should check for allocation failure */
302 FcCharSetAddChar (fccs, (FcChar32) ucode);
303 }
304 else if (2 == XCHARSET_DIMENSION (cs))
305 /* Unicode tables are indexed by offsets from ASCII SP, not by ASCII */
306 for (i = 0; i < 96; i++)
307 for (j = 0; j < 96; j++)
308 {
309 ucode = ((int **) XCHARSET_TO_UNICODE_TABLE (cs))[i][j];
310 if (ucode >= 0)
311 /* #### should check for allocation failure */
312 FcCharSetAddChar (fccs, (FcChar32) ucode);
313 }
314 else
315 {
316 FcCharSetDestroy (fccs);
317 fccs = NULL;
318 }
319 return fccs;
320 }
321
322 struct charset_reporter {
323 Lisp_Object *charset;
324 /* This is a debug facility, require ASCII. */
325 const Ascbyte *language; /* ASCII, please */
326 /* Technically this is FcChar8, but fsckin' GCC 4 bitches.
327 RFC 3066 is a combination of ISO 639 and ISO 3166. */
328 const Ascbyte *rfc3066; /* ASCII, please */
329 };
330
331 static struct charset_reporter charset_table[] =
332 {
333 /* #### It's my branch, my favorite charsets get checked first!
334 That's a joke, Son.
335 Ie, I don't know what I'm doing, so my charsets first is as good as
336 any other arbitrary order. If you have a better idea, speak up! */
337 { &Vcharset_ascii, "English", "en" },
338 { &Vcharset_japanese_jisx0208, "Japanese", "ja" },
339 { &Vcharset_japanese_jisx0212, "Japanese", "ja" },
340 { &Vcharset_katakana_jisx0201, "Japanese", "ja" },
341 { &Vcharset_latin_jisx0201, "Japanese", "ja" },
342 { &Vcharset_japanese_jisx0208_1978, "Japanese", "ja" },
343 { &Vcharset_greek_iso8859_7, "Greek", "el" },
344 /* #### all the Chinese need checking
345 Damn the blood-sucking ISO anyway. */
346 { &Vcharset_chinese_gb2312, "simplified Chinese", "zh-cn" },
347 { &Vcharset_korean_ksc5601, "Korean", "ko" },
348 { &Vcharset_chinese_cns11643_1, "traditional Chinese", "zh-tw" },
349 { &Vcharset_chinese_cns11643_2, "traditional Chinese", "zh-tw" },
350 /* #### not obvious how to handle these
351 We could (for experimental purposes) make the last element into
352 an array of ISO 639 codes, and check for all of them. If a font
353 provides some but not others, warn. */
354 { &Vcharset_latin_iso8859_1, NULL, NULL },
355 { &Vcharset_latin_iso8859_2, NULL, NULL },
356 { &Vcharset_latin_iso8859_3, NULL, NULL },
357 { &Vcharset_latin_iso8859_4, NULL, NULL },
358 { &Vcharset_latin_iso8859_9, NULL, NULL },
359 { &Vcharset_latin_iso8859_15, NULL, NULL },
360 { &Vcharset_thai_tis620, "Thai", "th" },
361 /* We don't have an arabic charset. bidi issues, I guess? */
362 /* { &Vcharset_arabic_iso8859_6, "Arabic", "ar" }, */
363 { &Vcharset_hebrew_iso8859_8, "Hebrew", "he" },
364 /* #### probably close enough for Ukraine? */
365 { &Vcharset_cyrillic_iso8859_5, "Russian", "ru" },
366 /* #### these probably are not quite right */
367 { &Vcharset_chinese_big5_1, "traditional Chinese", "zh-tw" },
368 { &Vcharset_chinese_big5_2, "traditional Chinese", "zh-tw" },
369 { NULL, NULL, NULL }
370 };
371
372 /* Choose appropriate font name for debug messages.
373 Use only in the top half of next function (enforced with #undef). */
374 #define DECLARE_DEBUG_FONTNAME(__xemacs_name) \
375 Eistring *__xemacs_name; \
376 do \
377 { \
378 __xemacs_name = debug_xft > 2 ? eistr_fullname \
379 : debug_xft > 1 ? eistr_longname \
380 : eistr_shortname; \
381 } while (0)
382
383 static Lisp_Object
384 xft_find_charset_font (Lisp_Object font, Lisp_Object charset,
385 enum font_specifier_matchspec_stages stage)
386 {
387 const Extbyte *patternext;
388 Lisp_Object result = Qnil;
389
390 /* #### with Xft need to handle second stage here -- sjt
391 Hm. Or maybe not. That would be cool. :-) */
392 if (stage == STAGE_FINAL)
393 return Qnil;
394
395 /* Fontconfig converts all FreeType names to UTF-8 before passing them
396 back to callers---see fcfreetype.c (FcFreeTypeQuery).
397 I don't believe this is documented. */
398
399 DEBUG_XFT1 (1, "confirming charset for font instance %s\n",
400 XSTRING_DATA(font));
401
402 /* #### this looks like a fair amount of work, but the basic design
403 has never been rethought, and it should be
404
405 what really should happen here is that we use FcFontSort (FcFontList?)
406 to get a list of matching fonts, then pick the first (best) one that
407 gives language or repertoire coverage.
408 */
409
410 FcInit (); /* No-op if already initialized.
411 In fontconfig 2.3.2, this cannot return
412 failure, but that looks like a bug. We
413 check for it with FcGetCurrentConfig(),
414 which *can* fail. */
415 if (!FcConfigGetCurrent())
416 stderr_out ("Failed fontconfig initialization\n");
417 else
418 {
419 FcPattern *fontxft; /* long-lived, freed at end of this block */
420 FcResult fcresult;
421 FcConfig *fcc;
422 const Ascbyte *lang = "en";
423 FcCharSet *fccs = NULL;
424 DECLARE_EISTRING (eistr_shortname); /* user-friendly nickname */
425 DECLARE_EISTRING (eistr_longname); /* omit FC_LANG and FC_CHARSET */
426 DECLARE_EISTRING (eistr_fullname); /* everything */
427
428 patternext = LISP_STRING_TO_EXTERNAL (font, Qfc_font_name_encoding);
429 fcc = FcConfigGetCurrent ();
430
431 /* parse the name, do the substitutions, and match the font */
432
433 {
434 FcPattern *p = FcNameParse ((FcChar8 *) patternext);
435 PRINT_XFT_PATTERN (3, "FcNameParse'ed name is %s\n", p);
436 /* #### Next two return FcBool, but what does the return mean? */
437 /* The order is correct according the fontconfig docs. */
438 FcConfigSubstitute (fcc, p, FcMatchPattern);
439 PRINT_XFT_PATTERN (2, "FcConfigSubstitute'ed name is %s\n", p);
440 FcDefaultSubstitute (p);
441 PRINT_XFT_PATTERN (3, "FcDefaultSubstitute'ed name is %s\n", p);
442 /* #### check fcresult of following match? */
443 fcresult = FcResultMatch;
444 fontxft = FcFontMatch (fcc, p, &fcresult);
445 switch (fcresult)
446 {
447 /* case FcResultOutOfMemory: */
448 case FcResultNoMatch:
449 case FcResultTypeMismatch:
450 case FcResultNoId:
451 break;
452 case FcResultMatch:
453 /* this prints the long fontconfig name */
454 PRINT_XFT_PATTERN (1, "FcFontMatch'ed name is %s\n", fontxft);
455 break;
456 }
457 FcPatternDestroy (p);
458 }
459
460 /* heuristic to give reasonable-length names for debug reports
461
462 I considered #ifdef SUPPORT_FULL_FONTCONFIG_NAME etc but that's
463 pointless. We're just going to remove this code once the font/
464 face refactoring is done, but until then it could be very useful.
465 */
466 {
467 FcPattern *p = FcFontRenderPrepare (fcc, fontxft, fontxft);
468 Extbyte *name;
469
470 /* full name, including language coverage and repertoire */
471 name = (Extbyte *) FcNameUnparse (p);
472 eicpy_ext (eistr_fullname,
473 (name ? name : "NOT FOUND"),
474 Qfc_font_name_encoding);
475 if (name) free (name);
476
477 /* long name, omitting coverage and repertoire, plus a number
478 of rarely useful properties */
479 FcPatternDel (p, FC_CHARSET);
480 FcPatternDel (p, FC_LANG);
481 #ifdef FC_WIDTH
482 FcPatternDel (p, FC_WIDTH);
483 #endif
484 FcPatternDel (p, FC_SPACING);
485 FcPatternDel (p, FC_HINTING);
486 FcPatternDel (p, FC_VERTICAL_LAYOUT);
487 FcPatternDel (p, FC_AUTOHINT);
488 FcPatternDel (p, FC_GLOBAL_ADVANCE);
489 FcPatternDel (p, FC_INDEX);
490 FcPatternDel (p, FC_SCALE);
491 FcPatternDel (p, FC_FONTVERSION);
492 name = (Extbyte *) FcNameUnparse (p);
493 eicpy_ext (eistr_longname,
494 (name ? name : "NOT FOUND"),
495 Qfc_font_name_encoding);
496 if (name) free (name);
497
498 /* nickname, just family and size, but
499 "family" names usually have style, slant, and weight */
500 FcPatternDel (p, FC_FOUNDRY);
501 FcPatternDel (p, FC_STYLE);
502 FcPatternDel (p, FC_SLANT);
503 FcPatternDel (p, FC_WEIGHT);
504 FcPatternDel (p, FC_PIXEL_SIZE);
505 FcPatternDel (p, FC_OUTLINE);
506 FcPatternDel (p, FC_SCALABLE);
507 FcPatternDel (p, FC_DPI);
508 name = (Extbyte *) FcNameUnparse (p);
509 eicpy_ext (eistr_shortname,
510 (name ? name : "NOT FOUND"),
511 Qfc_font_name_encoding);
512 if (name) free (name);
513
514 FcPatternDestroy (p);
515 }
516
517 /* The language approach may better in the long run, but we can't use
518 it based on Mule charsets; fontconfig doesn't provide a way to test
519 for unions of languages, etc. That will require support from the
520 text module.
521
522 Optimization: cache the generated FcCharSet in the Mule charset.
523 Don't forget to destroy it if the Mule charset gets deallocated. */
524
525 {
526 /* This block possibly should be a function, but it generates
527 multiple values. I find the "pass an address to return the
528 value in" idiom opaque, so prefer a block. */
529 struct charset_reporter *cr;
530 for (cr = charset_table;
531 cr->charset && !EQ (*(cr->charset), charset);
532 cr++)
533 ;
534
535 if (cr->rfc3066)
536 {
537 DECLARE_DEBUG_FONTNAME (name);
538 CHECKING_LANG (0, eidata(name), cr->language);
539 lang = cr->rfc3066;
540 }
541 else if (cr->charset)
542 {
543 /* what the hey, build 'em on the fly */
544 /* #### in the case of error this could return NULL! */
545 fccs = mule_to_fc_charset (charset);
546 /* #### Bad idea here */
547 lang = (const Ascbyte *) XSTRING_DATA (XSYMBOL (XCHARSET_NAME
548 (charset))->name);
549 }
550 else
551 {
552 /* OK, we fell off the end of the table */
553 warn_when_safe_lispobj (intern ("xft"), intern ("alert"),
554 list2 (build_ascstring ("unchecked charset"),
555 charset));
556 /* default to "en"
557 #### THIS IS WRONG, WRONG, WRONG!!
558 It is why we never fall through to XLFD-checking. */
559 }
560
561 ASSERT_ASCTEXT_ASCII (lang);
562
563 if (fccs)
564 {
565 /* check for character set coverage */
566 int i = 0;
567 FcCharSet *v;
568 FcResult r = FcPatternGetCharSet (fontxft, FC_CHARSET, i, &v);
569
570 if (r == FcResultTypeMismatch)
571 {
572 DEBUG_XFT0 (0, "Unexpected type return in charset value\n");
573 result = Qnil;
574 }
575 else if (r == FcResultMatch && FcCharSetIsSubset (fccs, v))
576 {
577 /* The full pattern with the bitmap coverage is massively
578 unwieldy, but the shorter names are just *wrong*. We
579 should have the full thing internally as truename, and
580 filter stuff the client doesn't want to see on output.
581 Should we just store it into the truename right here? */
582 DECLARE_DEBUG_FONTNAME (name);
583 DEBUG_XFT2 (0, "Xft font %s supports %s\n",
584 eidata(name), lang);
585 #ifdef RETURN_LONG_FONTCONFIG_NAMES
586 result = eimake_string(eistr_fullname);
587 #else
588 result = eimake_string(eistr_longname);
589 #endif
590 }
591 else
592 {
593 DECLARE_DEBUG_FONTNAME (name);
594 DEBUG_XFT2 (0, "Xft font %s doesn't support %s\n",
595 eidata(name), lang);
596 result = Qnil;
597 }
598
599 /* clean up */
600 FcCharSetDestroy (fccs);
601 }
602 else
603 {
604 /* check for language coverage */
605 int i = 0;
606 FcValue v;
607 /* the main event */
608 FcResult r = FcPatternGet (fontxft, FC_LANG, i, &v);
609
610 if (r == FcResultMatch)
611 {
612 if (v.type != FcTypeLangSet) /* excessive paranoia */
613 {
614 ASSERT_ASCTEXT_ASCII(FcTypeOfValueToString(v));
615 /* Urk! Fall back and punt to core font. */
616 DEBUG_XFT1 (0, "Unexpected type of lang value (%s)\n",
617 FcTypeOfValueToString (v));
618 result = Qnil;
619 }
620 else if (FcLangSetHasLang (v.u.l, (FcChar8 *) lang)
621 != FcLangDifferentLang)
622 {
623 DECLARE_DEBUG_FONTNAME (name);
624 DEBUG_XFT2 (0, "Xft font %s supports %s\n",
625 eidata(name), lang);
626 #ifdef RETURN_LONG_FONTCONFIG_NAMES
627 result = eimake_string(eistr_fullname);
628 #else
629 result = eimake_string(eistr_longname);
630 #endif
631 }
632 else
633 {
634 DECLARE_DEBUG_FONTNAME (name);
635 DEBUG_XFT2 (0, "Xft font %s doesn't support %s\n",
636 eidata(name), lang);
637 result = Qnil;
638 }
639 }
640 else
641 {
642 ASSERT_ASCTEXT_ASCII(FcResultToString(r));
643 DEBUG_XFT1 (0, "Getting lang: unexpected result=%s\n",
644 FcResultToString (r));
645 result = Qnil;
646 }
647 }
648
649 /* clean up and maybe return */
650 FcPatternDestroy (fontxft);
651 if (!UNBOUNDP (result))
652 return result;
653 }
654 }
655 return Qnil;
656 }
657 #undef DECLARE_DEBUG_FONTNAME
658
659 #endif /* USE_XFT */
660
661 /* find a font spec that matches font spec FONT and also matches
662 (the registry of) CHARSET. */
663 static Lisp_Object
664 XFUN (find_charset_font) (Lisp_Object device, Lisp_Object font,
665 Lisp_Object charset,
666 enum font_specifier_matchspec_stages stage)
667 {
668 Lisp_Object result = Qnil, registries = Qnil;
669 int j, hyphen_count, registries_len = 0;
670 Ibyte *hyphening, *new_hyphening;
671 Bytecount xlfd_length;
672
673 DECLARE_EISTRING(ei_xlfd_without_registry);
674 DECLARE_EISTRING(ei_xlfd);
675
676 #ifdef USE_XFT
677 result = xft_find_charset_font(font, charset, stage);
678 if (!NILP(result))
679 {
680 return result;
681 }
682 #endif
683
684 switch (stage)
685 {
686 case STAGE_INITIAL:
687 {
688 if (!(NILP(XCHARSET_REGISTRIES(charset)))
689 && VECTORP(XCHARSET_REGISTRIES(charset)))
690 {
691 registries_len = XVECTOR_LENGTH(XCHARSET_REGISTRIES(charset));
692 registries = XCHARSET_REGISTRIES(charset);
693 }
694 break;
695 }
696 case STAGE_FINAL:
697 {
698 registries_len = 1;
699 registries = Qunicode_registries;
700 break;
701 }
702 default:
703 {
704 assert(0);
705 break;
706 }
707 }
708
709 eicpy_lstr(ei_xlfd, font);
710 hyphening = eidata(ei_xlfd);
711 xlfd_length = eilen(ei_xlfd);
712
713 /* Count the hyphens in the string, moving new_hyphening to just after the
714 last one. */
715 hyphen_count = count_hyphens(hyphening, xlfd_length, &new_hyphening);
716
717 if (0 == registries_len || (5 > hyphen_count &&
718 !(1 == xlfd_length && '*' == *hyphening)))
719 {
720 /* No proper XLFD specified, or we can't modify the pattern to change
721 the registry and encoding to match what we want, or we have no
722 information on the registry needed. */
723 eito_external(ei_xlfd, Qx_font_name_encoding);
724 DEBUG_OBJECTS ("about to xlistfonts_checking_charset, XLFD %s\n",
725 eidata(ei_xlfd));
726 result = xlistfonts_checking_charset (device, eiextdata(ei_xlfd),
727 charset, stage);
728 /* No need to loop through the available registries; return
729 immediately. */
730 return result;
731 }
732 else if (1 == xlfd_length && '*' == *hyphening)
733 {
734 /* It's a single asterisk. We can add the registry directly to the
735 end. */
736 eicpy_ch(ei_xlfd_without_registry, '*');
737 }
738 else
739 {
740 /* It's a fully-specified XLFD. Work out where the registry and
741 encoding are, and initialise ei_xlfd_without_registry to the string
742 without them. */
743
744 /* count_hyphens has set new_hyphening to just after the last
745 hyphen. Move back to just after the hyphen before it. */
746
747 for (new_hyphening -= 2; new_hyphening > hyphening
748 && '-' != *new_hyphening; --new_hyphening)
749 ;
750 ++new_hyphening;
751
752 eicpy_ei(ei_xlfd_without_registry, ei_xlfd);
753
754 /* Manipulate ei_xlfd_without_registry, using the information about
755 ei_xlfd, to which it's identical. */
756 eidel(ei_xlfd_without_registry, new_hyphening - hyphening, -1,
757 eilen(ei_xlfd) - (new_hyphening - hyphening), -1);
758
759 }
760
761 /* Now, loop through the registries and encodings defined for this
762 charset, doing an XListFonts each time with the pattern modified to
763 specify the regisry and encoding. This avoids huge amounts of IPC and
764 duplicated searching; now we use the searching the X server was doing
765 anyway, where before the X server did its search, transferred huge
766 amounts of data, and then we proceeded to do a regexp search on that
767 data. */
768 for (j = 0; j < registries_len && NILP(result); ++j)
769 {
770 eireset(ei_xlfd);
771 eicpy_ei(ei_xlfd, ei_xlfd_without_registry);
772
773 eicat_lstr(ei_xlfd, XVECTOR_DATA(registries)[j]);
774
775 eito_external(ei_xlfd, Qx_font_name_encoding);
776
777 DEBUG_OBJECTS ("about to xlistfonts_checking_charset, XLFD %s\n",
778 eidata(ei_xlfd));
779 result = xlistfonts_checking_charset (device, eiextdata(ei_xlfd),
780 charset, stage);
781 }
782
783 /* In the event that the charset is ASCII and we haven't matched
784 anything up to now, even with a pattern of "*", add "iso8859-1"
785 to the charset's registry and try again. Not returning a result
786 for ASCII means our frame geometry calculations are
787 inconsistent, and that we may crash. */
788
789 if (1 == xlfd_length && EQ(charset, Vcharset_ascii) && NILP(result)
790 && ('*' == eigetch(ei_xlfd_without_registry, 0)))
791
792 {
793 int have_latin1 = 0;
794
795 /* Set this to, for example, is08859-1 if you want to see the
796 error behaviour. */
797
798 #define FALLBACK_ASCII_REGISTRY "iso8859-1"
799
800 for (j = 0; j < registries_len; ++j)
801 {
802 if (0 == qxestrcasecmp(XSTRING_DATA(XVECTOR_DATA(registries)[j]),
803 (Ibyte *) FALLBACK_ASCII_REGISTRY))
804 {
805 have_latin1 = 1;
806 break;
807 }
808 }
809
810 if (!have_latin1)
811 {
812 Lisp_Object new_registries = make_vector(registries_len + 1, Qnil);
813
814 XVECTOR_DATA(new_registries)[0]
815 = build_ascstring(FALLBACK_ASCII_REGISTRY);
816
817 memcpy(XVECTOR_DATA(new_registries) + 1,
818 XVECTOR_DATA(registries),
819 sizeof XVECTOR_DATA(registries)[0] *
820 XVECTOR_LENGTH(registries));
821
822 /* Calling set_charset_registries instead of overwriting the
823 value directly, to allow the charset font caches to be
824 invalidated and a change to the default face to be
825 noted. */
826 set_charset_registries(charset, new_registries);
827
828 warn_when_safe (Qface, Qwarning,
829 "Your ASCII charset registries contain nothing "
830 "sensible. Adding `" FALLBACK_ASCII_REGISTRY "'.");
831
832 /* And recurse. */
833 result =
834 DEVMETH_OR_GIVEN (XDEVICE (device), find_charset_font,
835 (device, font, charset, stage),
836 result);
837 }
838 else
839 {
840 DECLARE_EISTRING (ei_connection_name);
841
842 /* We preserve a copy of the connection name for the error message
843 after the device is deleted. */
844 eicpy_lstr (ei_connection_name,
845 DEVICE_CONNECTION (XDEVICE(device)));
846
847 stderr_out ("Cannot find a font for ASCII, deleting device on %s\n",
848 eidata (ei_connection_name));
849
850 io_error_delete_device (device);
851
852 /* Do a normal warning in the event that we have other, non-X
853 frames available. (If we don't, io_error_delete_device will
854 have exited.) */
855 warn_when_safe
856 (Qface, Qerror,
857 "Cannot find a font for ASCII, deleting device on %s.\n"
858 "\n"
859 "Your X server fonts appear to be inconsistent; fix them, or\n"
860 "the next frame you create on that DISPLAY will crash this\n"
861 "XEmacs. At a minimum, provide one font with an XLFD ending\n"
862 "in `" FALLBACK_ASCII_REGISTRY "', so we can work out what size\n"
863 "a frame should be. ",
864 eidata (ei_connection_name));
865 }
866
867 }
868
869 /* This function used to return the font spec, in the case where a font
870 didn't exist on the X server but it did match the charset. We're not
871 doing that any more, because none of the other platform code does, and
872 the old behaviour was badly-judged in other respects, so I don't trust
873 the original author to have had a good reason for it. */
874
875 return result;
876 }
877
878 #endif /* MULE */