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a68fda4a AR |
1 | /* Font back-end driver for the NeXT/Open/GNUstep and MacOSX window system. |
2 | See font.h | |
73b0cd50 | 3 | Copyright (C) 2006-2011 Free Software Foundation, Inc. |
a68fda4a AR |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
32d235f8 | 7 | GNU Emacs is free software: you can redistribute it and/or modify |
a68fda4a | 8 | it under the terms of the GNU General Public License as published by |
32d235f8 GM |
9 | the Free Software Foundation, either version 3 of the License, or |
10 | (at your option) any later version. | |
a68fda4a AR |
11 | |
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
32d235f8 | 18 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
a68fda4a AR |
19 | |
20 | Author: Adrian Robert (arobert@cogsci.ucsd.edu) | |
21 | */ | |
22 | ||
5a06864f AR |
23 | /* This should be the first include, as it may set up #defines affecting |
24 | interpretation of even the system includes. */ | |
08a494a3 | 25 | #include <config.h> |
b024548b | 26 | #include <setjmp.h> |
a68fda4a AR |
27 | |
28 | #include "lisp.h" | |
29 | #include "dispextern.h" | |
30 | #include "composite.h" | |
31 | #include "blockinput.h" | |
32 | #include "charset.h" | |
33 | #include "frame.h" | |
34 | #include "window.h" | |
35 | #include "fontset.h" | |
36 | #include "nsterm.h" | |
37 | #include "frame.h" | |
38 | #include "character.h" | |
39 | #include "font.h" | |
80417b95 | 40 | #include "termchar.h" |
a68fda4a | 41 | |
6e2f42b4 | 42 | /* TODO: Drop once we can assume gnustep-gui 0.17.1. */ |
4e2f36cf AR |
43 | #ifdef NS_IMPL_GNUSTEP |
44 | #import <AppKit/NSFontDescriptor.h> | |
45 | #endif | |
46 | ||
a68fda4a AR |
47 | #define NSFONT_TRACE 0 |
48 | ||
49 | extern Lisp_Object Qns; | |
50 | extern Lisp_Object Qnormal, Qbold, Qitalic, Qcondensed, Qexpanded; | |
51 | static Lisp_Object Qapple, Qroman, Qmedium; | |
a68fda4a | 52 | extern Lisp_Object Qappend; |
a68fda4a AR |
53 | extern float ns_antialias_threshold; |
54 | extern int ns_tmp_flags; | |
55 | extern struct nsfont_info *ns_tmp_font; | |
56 | ||
57 | /* font glyph and metrics caching functions, implemented at end */ | |
58 | static void ns_uni_to_glyphs (struct nsfont_info *font_info, | |
59 | unsigned char block); | |
60 | static void ns_glyph_metrics (struct nsfont_info *font_info, | |
61 | unsigned char block); | |
62 | ||
63 | ||
64 | /* ========================================================================== | |
65 | ||
66 | Utilities | |
67 | ||
68 | ========================================================================== */ | |
69 | ||
70 | ||
71 | /* Replace spaces w/another character so emacs core font parsing routines | |
72 | aren't thrown off. */ | |
73 | static void | |
8840261a | 74 | ns_escape_name (char *name) |
a68fda4a AR |
75 | { |
76 | int i =0, len =strlen (name); | |
77 | for ( ; i<len; i++) | |
78 | if (name[i] == ' ') | |
79 | name[i] = '_'; | |
80 | } | |
81 | ||
82 | ||
83 | /* Reconstruct spaces in a font family name passed through emacs. */ | |
84 | static void | |
8840261a | 85 | ns_unescape_name (char *name) |
a68fda4a AR |
86 | { |
87 | int i =0, len =strlen (name); | |
88 | for ( ; i<len; i++) | |
89 | if (name[i] == '_') | |
90 | name[i] = ' '; | |
91 | } | |
92 | ||
93 | ||
94 | /* Extract family name from a font spec. */ | |
95 | static NSString * | |
8840261a | 96 | ns_get_family (Lisp_Object font_spec) |
a68fda4a AR |
97 | { |
98 | Lisp_Object tem = AREF (font_spec, FONT_FAMILY_INDEX); | |
99 | if (NILP (tem)) | |
100 | return nil; | |
101 | else | |
102 | { | |
6ca3801d | 103 | char *tmp = xstrdup (SDATA (SYMBOL_NAME (tem))); |
a68fda4a | 104 | NSString *family; |
8840261a | 105 | ns_unescape_name (tmp); |
a68fda4a | 106 | family = [NSString stringWithUTF8String: tmp]; |
613052cd | 107 | xfree (tmp); |
a68fda4a AR |
108 | return family; |
109 | } | |
110 | } | |
111 | ||
112 | ||
4b7f335c AR |
113 | /* Return 0 if attr not set, else value (which might also be 0). |
114 | On Leopard 0 gets returned even on descriptors where the attribute | |
115 | was never set, so there's no way to distinguish between unspecified | |
116 | and set to not have. Callers should assume 0 means unspecified. */ | |
8840261a AR |
117 | static float |
118 | ns_attribute_fvalue (NSFontDescriptor *fdesc, NSString *trait) | |
119 | { | |
4b7f335c AR |
120 | NSDictionary *tdict = [fdesc objectForKey: NSFontTraitsAttribute]; |
121 | NSNumber *val = [tdict objectForKey: trait]; | |
8840261a AR |
122 | return val == nil ? 0.0 : [val floatValue]; |
123 | } | |
a68fda4a | 124 | |
a68fda4a | 125 | |
8840261a AR |
126 | /* Converts FONT_WEIGHT, FONT_SLANT, FONT_WIDTH, plus family and script/lang |
127 | to NSFont descriptor. Information under extra only needed for matching. */ | |
128 | #define STYLE_REF 100 | |
129 | static NSFontDescriptor | |
130 | *ns_spec_to_descriptor(Lisp_Object font_spec) | |
131 | { | |
132 | NSFontDescriptor *fdesc; | |
133 | NSMutableDictionary *fdAttrs = [NSMutableDictionary new]; | |
134 | NSMutableDictionary *tdict = [NSMutableDictionary new]; | |
135 | NSString *family = ns_get_family (font_spec); | |
136 | float n; | |
137 | ||
138 | /* add each attr in font_spec to fdAttrs.. */ | |
139 | n = min (FONT_WEIGHT_NUMERIC (font_spec), 200); | |
140 | if (n != -1 && n != STYLE_REF) | |
141 | [tdict setObject: [NSNumber numberWithFloat: (n - 100.0) / 100.0] | |
142 | forKey: NSFontWeightTrait]; | |
143 | n = min (FONT_SLANT_NUMERIC (font_spec), 200); | |
144 | if (n != -1 && n != STYLE_REF) | |
145 | [tdict setObject: [NSNumber numberWithFloat: (n - 100.0) / 100.0] | |
146 | forKey: NSFontSlantTrait]; | |
147 | n = min (FONT_WIDTH_NUMERIC (font_spec), 200); | |
148 | if (n > -1 && (n > STYLE_REF + 10 || n < STYLE_REF - 10)) | |
149 | [tdict setObject: [NSNumber numberWithFloat: (n - 100.0) / 100.0] | |
150 | forKey: NSFontWidthTrait]; | |
151 | if ([tdict count] > 0) | |
152 | [fdAttrs setObject: tdict forKey: NSFontTraitsAttribute]; | |
153 | ||
154 | fdesc = [NSFontDescriptor fontDescriptorWithFontAttributes: fdAttrs]; | |
155 | if (family != nil) | |
156 | fdesc = [fdesc fontDescriptorWithFamily: family]; | |
157 | return fdesc; | |
a68fda4a AR |
158 | } |
159 | ||
160 | ||
8840261a | 161 | /* Converts NSFont descriptor to FONT_WEIGHT, FONT_SLANT, FONT_WIDTH, etc.. */ |
a68fda4a | 162 | static Lisp_Object |
9c5bd55a J |
163 | ns_descriptor_to_entity (NSFontDescriptor *desc, |
164 | Lisp_Object extra, | |
165 | const char *style) | |
a68fda4a | 166 | { |
8840261a AR |
167 | Lisp_Object font_entity = font_make_entity (); |
168 | /* NSString *psName = [desc postscriptName]; */ | |
169 | NSString *family = [desc objectForKey: NSFontFamilyAttribute]; | |
8840261a | 170 | unsigned int traits = [desc symbolicTraits]; |
b9173dc2 | 171 | char *escapedFamily; |
8840261a | 172 | |
b9173dc2 AR |
173 | /* Shouldn't happen, but on Tiger fallback desc gets name but no family. */ |
174 | if (family == nil) | |
175 | family = [desc objectForKey: NSFontNameAttribute]; | |
176 | if (family == nil) | |
177 | family = [[NSFont userFixedPitchFontOfSize: 0] familyName]; | |
178 | ||
6ca3801d | 179 | escapedFamily = xstrdup ([family UTF8String]); |
8840261a AR |
180 | ns_escape_name (escapedFamily); |
181 | ||
182 | ASET (font_entity, FONT_TYPE_INDEX, Qns); | |
183 | ASET (font_entity, FONT_FOUNDRY_INDEX, Qapple); | |
184 | ASET (font_entity, FONT_FAMILY_INDEX, intern (escapedFamily)); | |
185 | ASET (font_entity, FONT_ADSTYLE_INDEX, style ? intern (style) : Qnil); | |
186 | ASET (font_entity, FONT_REGISTRY_INDEX, Qiso10646_1); | |
187 | ||
188 | FONT_SET_STYLE (font_entity, FONT_WEIGHT_INDEX, | |
189 | traits & NSFontBoldTrait ? Qbold : Qmedium); | |
190 | /* FONT_SET_STYLE (font_entity, FONT_WEIGHT_INDEX, | |
191 | make_number (100 + 100 | |
192 | * ns_attribute_fvalue (desc, NSFontWeightTrait)));*/ | |
193 | FONT_SET_STYLE (font_entity, FONT_SLANT_INDEX, | |
194 | traits & NSFontItalicTrait ? Qitalic : Qnormal); | |
195 | /* FONT_SET_STYLE (font_entity, FONT_SLANT_INDEX, | |
196 | make_number (100 + 100 | |
197 | * ns_attribute_fvalue (desc, NSFontSlantTrait)));*/ | |
198 | FONT_SET_STYLE (font_entity, FONT_WIDTH_INDEX, | |
199 | traits & NSFontCondensedTrait ? Qcondensed : | |
200 | traits & NSFontExpandedTrait ? Qexpanded : Qnormal); | |
201 | /* FONT_SET_STYLE (font_entity, FONT_WIDTH_INDEX, | |
202 | make_number (100 + 100 | |
203 | * ns_attribute_fvalue (desc, NSFontWidthTrait)));*/ | |
204 | ||
205 | ASET (font_entity, FONT_SIZE_INDEX, make_number (0)); | |
206 | ASET (font_entity, FONT_AVGWIDTH_INDEX, make_number (0)); | |
207 | ASET (font_entity, FONT_SPACING_INDEX, | |
208 | make_number([desc symbolicTraits] & NSFontMonoSpaceTrait | |
209 | ? FONT_SPACING_MONO : FONT_SPACING_PROPORTIONAL)); | |
210 | ||
211 | ASET (font_entity, FONT_EXTRA_INDEX, extra); | |
212 | ASET (font_entity, FONT_OBJLIST_INDEX, Qnil); | |
213 | ||
214 | if (NSFONT_TRACE) | |
215 | { | |
216 | fprintf (stderr, "created font_entity:\n "); | |
217 | debug_print (font_entity); | |
218 | } | |
a68fda4a | 219 | |
613052cd | 220 | xfree (escapedFamily); |
8840261a AR |
221 | return font_entity; |
222 | } | |
a68fda4a | 223 | |
8840261a AR |
224 | |
225 | /* Default font entity. */ | |
226 | static Lisp_Object | |
3d608a86 | 227 | ns_fallback_entity (void) |
8840261a AR |
228 | { |
229 | return ns_descriptor_to_entity ([[NSFont userFixedPitchFontOfSize: 0] | |
230 | fontDescriptor], Qnil, NULL); | |
a68fda4a AR |
231 | } |
232 | ||
233 | ||
8840261a AR |
234 | /* Utility: get width of a char c in screen font sfont */ |
235 | static float | |
236 | ns_char_width (NSFont *sfont, int c) | |
a68fda4a | 237 | { |
8840261a AR |
238 | float w; |
239 | NSString *cstr = [NSString stringWithFormat: @"%c", c]; | |
240 | #ifdef NS_IMPL_COCOA | |
241 | NSGlyph glyph = [sfont glyphWithName: cstr]; | |
242 | if (glyph) | |
243 | { | |
244 | float w = [sfont advancementForGlyph: glyph].width; | |
245 | if (w >= 1.5) | |
246 | return w; | |
247 | } | |
248 | #endif | |
e28db5bc AR |
249 | { |
250 | NSDictionary *attrsDictionary = | |
251 | [NSDictionary dictionaryWithObject: sfont forKey: NSFontAttributeName]; | |
252 | w = [cstr sizeWithAttributes: attrsDictionary].width; | |
253 | } | |
8840261a AR |
254 | return max (w, 2.0); |
255 | } | |
256 | ||
257 | ||
258 | /* Return whether set1 covers set2 to a reasonable extent given by pct. | |
259 | We check, out of each 16 unicode char range containing chars in set2, | |
260 | whether at least one character is present in set1. | |
261 | This must be true for pct of the pairs to consider it covering. */ | |
262 | static BOOL | |
263 | ns_charset_covers(NSCharacterSet *set1, NSCharacterSet *set2, float pct) | |
264 | { | |
265 | const unsigned short *bytes1 = [[set1 bitmapRepresentation] bytes]; | |
266 | const unsigned short *bytes2 = [[set2 bitmapRepresentation] bytes]; | |
267 | int i, off = 0, tot = 0; | |
268 | ||
269 | for (i=0; i<4096; i++, bytes1++, bytes2++) | |
270 | if (*bytes2) | |
271 | { | |
272 | tot++; | |
273 | if (*bytes1 == 0) // *bytes1 & *bytes2 != *bytes2 | |
274 | off++; | |
275 | } | |
276 | //fprintf(stderr, "off = %d\ttot = %d\n", off,tot); | |
277 | return (float)off / tot < 1.0 - pct; | |
278 | } | |
279 | ||
280 | ||
281 | /* Convert :lang property to a script. Use of :lang property by font backend | |
282 | seems to be limited for now (2009/05) to ja, zh, and ko. */ | |
283 | static NSString | |
284 | *ns_lang_to_script (Lisp_Object lang) | |
285 | { | |
286 | if (!strcmp (SDATA (SYMBOL_NAME (lang)), "ja")) | |
287 | return @"han"; | |
288 | /* NOTE: ja given for any hanzi that's also a kanji, but Chinese fonts | |
289 | have more characters. */ | |
290 | else if (!strcmp (SDATA (SYMBOL_NAME (lang)), "zh")) | |
291 | return @"han"; | |
292 | else if (!strcmp (SDATA (SYMBOL_NAME (lang)), "ko")) | |
293 | return @"hangul"; | |
294 | else | |
295 | return @""; | |
296 | } | |
297 | ||
298 | ||
299 | /* Convert OTF 4-letter script code to emacs script name. (Why can't | |
300 | everyone just use some standard unicode names for these?) */ | |
301 | static NSString | |
302 | *ns_otf_to_script (Lisp_Object otf) | |
303 | { | |
304 | Lisp_Object script = assq_no_quit (XCAR (otf), Votf_script_alist); | |
305 | return CONSP (script) | |
306 | ? [NSString stringWithUTF8String: SDATA (SYMBOL_NAME XCDR ((script)))] | |
307 | : @""; | |
308 | } | |
309 | ||
310 | ||
87f66bd3 AR |
311 | /* Convert a font registry, such as */ |
312 | static NSString | |
313 | *ns_registry_to_script (char *reg) | |
314 | { | |
315 | Lisp_Object script, r, rts = Vns_reg_to_script; | |
316 | while CONSP (rts) | |
317 | { | |
318 | r = XCAR (XCAR (rts)); | |
319 | if (!strncmp(SDATA(r), reg, strlen(SDATA(r)))) | |
320 | { | |
321 | script = XCDR (XCAR (rts)); | |
322 | return [NSString stringWithUTF8String: SDATA (SYMBOL_NAME (script))]; | |
323 | } | |
324 | rts = XCDR (rts); | |
325 | } | |
326 | return @""; | |
327 | } | |
328 | ||
329 | ||
330 | /* Searches the :script, :lang, and :otf extra-bundle properties of the spec, | |
331 | plus registry regular property, for something that can be mapped to a | |
332 | unicode script. Empty string returned if no script spec found. */ | |
8840261a AR |
333 | static NSString |
334 | *ns_get_req_script (Lisp_Object font_spec) | |
335 | { | |
87f66bd3 | 336 | Lisp_Object reg = AREF (font_spec, FONT_REGISTRY_INDEX); |
8840261a AR |
337 | Lisp_Object extra = AREF (font_spec, FONT_EXTRA_INDEX); |
338 | ||
87f66bd3 | 339 | /* The extra-bundle properties have priority. */ |
8840261a AR |
340 | for ( ; CONSP (extra); extra = XCDR (extra)) |
341 | { | |
342 | Lisp_Object tmp = XCAR (extra); | |
343 | if (CONSP (tmp)) | |
344 | { | |
345 | Lisp_Object key = XCAR (tmp), val = XCDR (tmp); | |
346 | if (EQ (key, QCscript) && SYMBOLP (val)) | |
347 | return [NSString stringWithUTF8String: | |
348 | SDATA (SYMBOL_NAME (val))]; | |
349 | if (EQ (key, QClang) && SYMBOLP (val)) | |
350 | return ns_lang_to_script (val); | |
351 | if (EQ (key, QCotf) && CONSP (val) && SYMBOLP (XCAR (val))) | |
352 | return ns_otf_to_script (val); | |
353 | } | |
354 | } | |
87f66bd3 AR |
355 | |
356 | /* If we get here, check the charset portion of the registry. */ | |
357 | if (! NILP (reg)) | |
358 | { | |
359 | /* XXX: iso10646 is passed in for non-ascii latin-1 characters | |
360 | (which causes box rendering if we don't treat it like iso8858-1) | |
361 | but also for ascii (which causes unnecessary font substitution). */ | |
362 | #if 0 | |
363 | if (EQ (reg, Qiso10646_1)) | |
364 | reg = Qiso8859_1; | |
365 | #endif | |
366 | return ns_registry_to_script (SDATA (SYMBOL_NAME (reg))); | |
367 | } | |
368 | ||
8840261a AR |
369 | return @""; |
370 | } | |
371 | ||
372 | ||
373 | /* This small function is static in fontset.c. If it can be made public for | |
374 | all ports, remove this, but otherwise it doesn't seem worth the ifdefs. */ | |
375 | static void | |
376 | accumulate_script_ranges (Lisp_Object arg, Lisp_Object range, Lisp_Object val) | |
377 | { | |
378 | if (EQ (XCAR (arg), val)) | |
379 | { | |
380 | if (CONSP (range)) | |
381 | XSETCDR (arg, Fcons (Fcons (XCAR (range), XCDR (range)), XCDR (arg))); | |
382 | else | |
383 | XSETCDR (arg, Fcons (Fcons (range, range), XCDR (arg))); | |
384 | } | |
385 | } | |
386 | ||
387 | ||
388 | /* Use the unicode range information in Vchar_script_table to convert a script | |
389 | name into an NSCharacterSet. */ | |
390 | static NSCharacterSet | |
391 | *ns_script_to_charset (NSString *scriptName) | |
392 | { | |
393 | NSMutableCharacterSet *charset = [NSMutableCharacterSet new]; | |
394 | Lisp_Object script = intern ([scriptName UTF8String]); | |
395 | Lisp_Object script_list = XCHAR_TABLE (Vchar_script_table)->extras[0]; | |
396 | ||
397 | if (! NILP (Fmemq (script, script_list))) | |
398 | { | |
399 | Lisp_Object ranges, range_list; | |
400 | ||
401 | ranges = Fcons (script, Qnil); | |
402 | map_char_table (accumulate_script_ranges, Qnil, Vchar_script_table, | |
403 | ranges); | |
404 | range_list = Fnreverse (XCDR (ranges)); | |
405 | if (! NILP (range_list)) | |
406 | { | |
407 | for (; CONSP (range_list); range_list = XCDR (range_list)) | |
408 | { | |
409 | int start = XINT (XCAR (XCAR (range_list))); | |
410 | int end = XINT (XCDR (XCAR (range_list))); | |
411 | if (NSFONT_TRACE) | |
412 | debug_print (XCAR (range_list)); | |
413 | if (end < 0x10000) | |
414 | [charset addCharactersInRange: | |
415 | NSMakeRange (start, end-start)]; | |
416 | } | |
417 | } | |
418 | } | |
419 | return charset; | |
a68fda4a AR |
420 | } |
421 | ||
422 | ||
8840261a AR |
423 | /* Return an array of font families containing characters for the given |
424 | script, for the given coverage criterion, including at least LastResort. | |
425 | Results are cached by script for faster access. | |
426 | If none are found, we reduce the percentage and try again, until 5%. | |
427 | This provides a font with at least some characters if such can be found. | |
428 | We don't use isSupersetOfSet: because (a) it doesn't work on Tiger, and | |
429 | (b) need approximate match as fonts covering full unicode ranges are rare. */ | |
430 | static NSSet | |
431 | *ns_get_covering_families (NSString *script, float pct) | |
432 | { | |
433 | static NSMutableDictionary *scriptToFamilies = nil; | |
434 | NSMutableSet *families; | |
435 | ||
436 | if (NSFONT_TRACE) | |
437 | NSLog(@"Request covering families for script: '%@'", script); | |
438 | ||
439 | if (scriptToFamilies == nil) | |
e41820ee | 440 | scriptToFamilies = [[NSMutableDictionary alloc] init]; |
8840261a AR |
441 | |
442 | if ((families = [scriptToFamilies objectForKey: script]) == nil) | |
443 | { | |
444 | NSFontManager *fontMgr = [NSFontManager sharedFontManager]; | |
445 | NSArray *allFamilies = [fontMgr availableFontFamilies]; | |
446 | ||
447 | if ([script length] == 0) | |
448 | families = [NSMutableSet setWithArray: allFamilies]; | |
449 | else | |
450 | { | |
451 | NSCharacterSet *charset = ns_script_to_charset (script); | |
452 | NSString *family; | |
453 | families = [NSMutableSet setWithCapacity: 10]; | |
454 | while (1) | |
455 | { | |
456 | NSEnumerator *allFamiliesEnum = [allFamilies objectEnumerator]; | |
457 | while (family = [allFamiliesEnum nextObject]) | |
458 | { | |
459 | NSCharacterSet *fset = [[fontMgr fontWithFamily: family | |
460 | traits: 0 weight: 5 size: 12.0] coveredCharacterSet]; | |
461 | /* Some fonts on OS X, maybe many on GNUstep, return nil. */ | |
462 | if (fset == nil) | |
463 | fset = [NSCharacterSet characterSetWithRange: | |
464 | NSMakeRange (0, 127)]; | |
465 | if (ns_charset_covers(fset, charset, pct)) | |
466 | [families addObject: family]; | |
467 | } | |
468 | pct -= 0.2; | |
469 | if ([families count] > 0 || pct < 0.05) | |
470 | break; | |
471 | } | |
472 | } | |
473 | #ifdef NS_IMPL_COCOA | |
474 | if ([families count] == 0) | |
475 | [families addObject: @"LastResort"]; | |
476 | #endif | |
477 | [scriptToFamilies setObject: families forKey: script]; | |
478 | } | |
479 | ||
480 | if (NSFONT_TRACE) | |
481 | NSLog(@" returning %d families", [families count]); | |
482 | return families; | |
483 | } | |
484 | ||
485 | ||
486 | /* Implementation for list() and match(). List() can return nil, match() | |
487 | must return something. Strategy is to drop family name from attribute | |
488 | matching set for match. */ | |
a68fda4a | 489 | static Lisp_Object |
8840261a | 490 | ns_findfonts (Lisp_Object font_spec, BOOL isMatch) |
a68fda4a | 491 | { |
8840261a AR |
492 | Lisp_Object tem, list = Qnil; |
493 | NSFontDescriptor *fdesc, *desc; | |
494 | NSMutableSet *fkeys; | |
495 | NSArray *matchingDescs; | |
496 | NSEnumerator *dEnum; | |
497 | NSString *family; | |
498 | NSSet *cFamilies; | |
499 | BOOL foundItal = NO; | |
500 | ||
501 | if (NSFONT_TRACE) | |
502 | { | |
503 | fprintf (stderr, "nsfont: %s for fontspec:\n ", | |
504 | (isMatch ? "match" : "list")); | |
505 | debug_print (font_spec); | |
506 | } | |
507 | ||
8840261a AR |
508 | cFamilies = ns_get_covering_families (ns_get_req_script (font_spec), 0.90); |
509 | ||
510 | fdesc = ns_spec_to_descriptor (font_spec); | |
511 | fkeys = [NSMutableSet setWithArray: [[fdesc fontAttributes] allKeys]]; | |
512 | if (isMatch) | |
513 | [fkeys removeObject: NSFontFamilyAttribute]; | |
514 | ||
515 | matchingDescs = [fdesc matchingFontDescriptorsWithMandatoryKeys: fkeys]; | |
516 | if (NSFONT_TRACE) | |
517 | NSLog(@"Got desc %@ and found %d matching fonts from it: ", fdesc, | |
518 | [matchingDescs count]); | |
519 | ||
520 | for (dEnum = [matchingDescs objectEnumerator]; desc = [dEnum nextObject]; ) | |
521 | { | |
522 | if (![cFamilies containsObject: | |
523 | [desc objectForKey: NSFontFamilyAttribute]]) | |
524 | continue; | |
1586503c | 525 | tem = ns_descriptor_to_entity (desc, |
8840261a | 526 | AREF (font_spec, FONT_EXTRA_INDEX), |
1586503c AR |
527 | NULL); |
528 | if (isMatch) | |
529 | return tem; | |
530 | list = Fcons (tem, list); | |
e4e9c24b | 531 | if (fabs (ns_attribute_fvalue (desc, NSFontSlantTrait)) > 0.05) |
8840261a AR |
532 | foundItal = YES; |
533 | } | |
534 | ||
535 | /* Add synthItal member if needed. */ | |
536 | family = [fdesc objectForKey: NSFontFamilyAttribute]; | |
4b7f335c | 537 | if (family != nil && !foundItal && XINT (Flength (list)) > 0) |
8840261a AR |
538 | { |
539 | NSFontDescriptor *sDesc = [[[NSFontDescriptor new] | |
540 | fontDescriptorWithSymbolicTraits: NSFontItalicTrait] | |
541 | fontDescriptorWithFamily: family]; | |
542 | list = Fcons (ns_descriptor_to_entity (sDesc, | |
543 | AREF (font_spec, FONT_EXTRA_INDEX), | |
544 | "synthItal"), list); | |
545 | } | |
546 | ||
1395c6f5 | 547 | /* Return something if was a match and nothing found. */ |
1586503c AR |
548 | if (isMatch) |
549 | return ns_fallback_entity (); | |
1395c6f5 | 550 | |
8840261a | 551 | if (NSFONT_TRACE) |
e28db5bc | 552 | fprintf (stderr, " Returning %ld entities.\n", |
bf856382 | 553 | (long) XINT (Flength (list))); |
8840261a AR |
554 | |
555 | return list; | |
a68fda4a AR |
556 | } |
557 | ||
558 | ||
8840261a | 559 | |
a68fda4a AR |
560 | /* ========================================================================== |
561 | ||
562 | Font driver implementation | |
563 | ||
564 | ========================================================================== */ | |
565 | ||
8840261a | 566 | |
a68fda4a AR |
567 | static Lisp_Object nsfont_get_cache (FRAME_PTR frame); |
568 | static Lisp_Object nsfont_list (Lisp_Object frame, Lisp_Object font_spec); | |
569 | static Lisp_Object nsfont_match (Lisp_Object frame, Lisp_Object font_spec); | |
570 | static Lisp_Object nsfont_list_family (Lisp_Object frame); | |
571 | static Lisp_Object nsfont_open (FRAME_PTR f, Lisp_Object font_entity, | |
572 | int pixel_size); | |
573 | static void nsfont_close (FRAME_PTR f, struct font *font); | |
574 | static int nsfont_has_char (Lisp_Object entity, int c); | |
575 | static unsigned int nsfont_encode_char (struct font *font, int c); | |
576 | static int nsfont_text_extents (struct font *font, unsigned int *code, | |
577 | int nglyphs, struct font_metrics *metrics); | |
578 | static int nsfont_draw (struct glyph_string *s, int from, int to, int x, int y, | |
579 | int with_background); | |
580 | ||
581 | struct font_driver nsfont_driver = | |
582 | { | |
facfbbbd | 583 | 0, /* Qns */ |
a68fda4a AR |
584 | 1, /* case sensitive */ |
585 | nsfont_get_cache, | |
586 | nsfont_list, | |
587 | nsfont_match, | |
588 | nsfont_list_family, | |
589 | NULL, /*free_entity */ | |
590 | nsfont_open, | |
591 | nsfont_close, | |
592 | NULL, /* prepare_face */ | |
593 | NULL, /* done_face */ | |
594 | nsfont_has_char, | |
595 | nsfont_encode_char, | |
596 | nsfont_text_extents, | |
597 | nsfont_draw, | |
598 | /* excluded: get_bitmap, free_bitmap, get_outline, free_outline, | |
599 | anchor_point, otf_capability, otf_driver, | |
600 | start_for_frame, end_for_frame, shape */ | |
601 | }; | |
602 | ||
603 | ||
604 | /* Return a cache of font-entities on FRAME. The cache must be a | |
605 | cons whose cdr part is the actual cache area. */ | |
606 | static Lisp_Object | |
607 | nsfont_get_cache (FRAME_PTR frame) | |
608 | { | |
609 | Display_Info *dpyinfo = FRAME_NS_DISPLAY_INFO (frame); | |
610 | return (dpyinfo->name_list_element); | |
611 | } | |
612 | ||
613 | ||
8840261a AR |
614 | /* List fonts exactly matching with FONT_SPEC on FRAME. The value is a |
615 | **list** of font-entities. This and match () are sole APIs that allocate | |
616 | font-entities. Properties to be considered (2009/05/19) are: | |
617 | regular: foundry, family, adstyle, registry | |
618 | extended: script, lang, otf | |
619 | "Extended" properties are not part of the vector but get stored as | |
620 | lisp properties under FONT_EXTRA_INDEX. | |
621 | ||
622 | The returned entities should have type set (to 'ns), plus the following: | |
623 | foundry, family, adstyle, registry, | |
624 | weight, slant, width, size (0 if scalable), | |
625 | dpi, spacing, avgwidth (0 if scalable) */ | |
a68fda4a AR |
626 | static Lisp_Object |
627 | nsfont_list (Lisp_Object frame, Lisp_Object font_spec) | |
628 | { | |
8840261a | 629 | return ns_findfonts (font_spec, NO); |
a68fda4a AR |
630 | } |
631 | ||
632 | ||
633 | /* Return a font entity most closely maching with FONT_SPEC on | |
634 | FRAME. The closeness is determined by the font backend, thus | |
8840261a AR |
635 | `face-font-selection-order' is ignored here. |
636 | Properties to be considered are same as for list(). */ | |
a68fda4a AR |
637 | static Lisp_Object |
638 | nsfont_match (Lisp_Object frame, Lisp_Object font_spec) | |
639 | { | |
8840261a | 640 | return ns_findfonts(font_spec, YES); |
a68fda4a AR |
641 | } |
642 | ||
643 | ||
644 | /* List available families. The value is a list of family names | |
645 | (symbols). */ | |
646 | static Lisp_Object | |
647 | nsfont_list_family (Lisp_Object frame) | |
648 | { | |
649 | Lisp_Object list = Qnil; | |
650 | NSEnumerator *families = | |
651 | [[[NSFontManager sharedFontManager] availableFontFamilies] | |
652 | objectEnumerator]; | |
653 | NSString *family; | |
654 | while (family = [families nextObject]) | |
655 | list = Fcons (intern ([family UTF8String]), list); | |
df2142db | 656 | /* FIXME: escape the name? */ |
a68fda4a AR |
657 | |
658 | if (NSFONT_TRACE) | |
e28db5bc | 659 | fprintf (stderr, "nsfont: list families returning %ld entries\n", |
bf856382 | 660 | (long) XINT (Flength (list))); |
a68fda4a AR |
661 | |
662 | return list; | |
663 | } | |
664 | ||
665 | ||
a68fda4a AR |
666 | /* Open a font specified by FONT_ENTITY on frame F. If the font is |
667 | scalable, open it with PIXEL_SIZE. */ | |
668 | static Lisp_Object | |
669 | nsfont_open (FRAME_PTR f, Lisp_Object font_entity, int pixel_size) | |
670 | { | |
671 | BOOL synthItal; | |
8840261a | 672 | unsigned int traits = 0; |
a68fda4a AR |
673 | struct nsfont_info *font_info; |
674 | struct font *font; | |
8840261a | 675 | NSFontDescriptor *fontDesc = ns_spec_to_descriptor (font_entity); |
a68fda4a AR |
676 | NSFontManager *fontMgr = [NSFontManager sharedFontManager]; |
677 | NSString *family; | |
678 | NSFont *nsfont, *sfont; | |
679 | Lisp_Object tem; | |
680 | NSRect brect; | |
681 | Lisp_Object font_object; | |
682 | int i; | |
683 | int fixLeopardBug; | |
a68fda4a | 684 | static NSMutableDictionary *fontCache = nil; |
8d0e382e | 685 | NSNumber *cached; |
a68fda4a AR |
686 | |
687 | /* 2008/03/08: The same font may end up being requested for different | |
688 | entities, due to small differences in numeric values or other issues, | |
689 | or for different copies of the same entity. Therefore we cache to | |
690 | avoid creating multiple struct font objects (with metrics cache, etc.) | |
8840261a | 691 | for the same NSFont object. */ |
a68fda4a AR |
692 | if (fontCache == nil) |
693 | fontCache = [[NSMutableDictionary alloc] init]; | |
a68fda4a AR |
694 | |
695 | if (NSFONT_TRACE) | |
696 | { | |
697 | fprintf (stderr, "nsfont: open size %d of fontentity:\n ", pixel_size); | |
698 | debug_print (font_entity); | |
699 | } | |
700 | ||
701 | if (pixel_size <= 0) | |
702 | { | |
703 | /* try to get it out of frame params */ | |
704 | Lisp_Object tem = get_frame_param (f, Qfontsize); | |
705 | pixel_size = NILP (tem) ? 0 : XFASTINT (tem); | |
706 | } | |
707 | ||
708 | tem = AREF (font_entity, FONT_ADSTYLE_INDEX); | |
709 | synthItal = !NILP (tem) && !strncmp ("synthItal", SDATA (SYMBOL_NAME (tem)), | |
710 | 9); | |
8840261a | 711 | family = ns_get_family (font_entity); |
b9173dc2 AR |
712 | if (family == nil) |
713 | family = [[NSFont userFixedPitchFontOfSize: 0] familyName]; | |
e4e9c24b AR |
714 | /* Should be > 0.23 as some font descriptors (e.g. Terminus) set to that |
715 | when setting family in ns_spec_to_descriptor(). */ | |
716 | if (ns_attribute_fvalue (fontDesc, NSFontWeightTrait) > 0.50) | |
8840261a | 717 | traits |= NSBoldFontMask; |
e4e9c24b | 718 | if (fabs (ns_attribute_fvalue (fontDesc, NSFontSlantTrait) > 0.05)) |
8840261a | 719 | traits |= NSItalicFontMask; |
a68fda4a | 720 | |
8840261a | 721 | /* see http://cocoadev.com/forums/comments.php?DiscussionID=74 */ |
a68fda4a AR |
722 | fixLeopardBug = traits & NSBoldFontMask ? 10 : 5; |
723 | nsfont = [fontMgr fontWithFamily: family | |
724 | traits: traits weight: fixLeopardBug | |
725 | size: pixel_size]; | |
726 | /* if didn't find, try synthetic italic */ | |
8840261a | 727 | if (nsfont == nil && synthItal) |
a68fda4a AR |
728 | { |
729 | nsfont = [fontMgr fontWithFamily: family | |
730 | traits: traits & ~NSItalicFontMask | |
731 | weight: fixLeopardBug size: pixel_size]; | |
732 | } | |
733 | #ifdef NS_IMPL_COCOA | |
734 | /* LastResort not really a family */ | |
735 | if (nsfont == nil && [@"LastResort" isEqualToString: family]) | |
a68fda4a | 736 | nsfont = [NSFont fontWithName: @"LastResort" size: pixel_size]; |
a68fda4a AR |
737 | #endif |
738 | ||
739 | if (nsfont == nil) | |
740 | { | |
741 | message_with_string ("*** Warning: font in family '%s' not found", | |
742 | build_string ([family UTF8String]), 1); | |
743 | nsfont = [NSFont userFixedPitchFontOfSize: pixel_size]; | |
a68fda4a AR |
744 | } |
745 | ||
8d0e382e AR |
746 | if (NSFONT_TRACE) |
747 | NSLog (@"%@\n", nsfont); | |
1bc98b35 | 748 | |
8d0e382e AR |
749 | /* Check the cache */ |
750 | cached = [fontCache objectForKey: nsfont]; | |
751 | if (cached != nil && !synthItal) | |
752 | { | |
753 | if (NSFONT_TRACE) | |
754 | fprintf(stderr, "*** nsfont_open CACHE HIT!\n"); | |
8840261a | 755 | /* FIXME: Cast from (unsigned long) to Lisp_Object. */ |
86fa089e SM |
756 | XHASH (font_object) = [cached unsignedLongValue]; |
757 | return font_object; | |
8d0e382e AR |
758 | } |
759 | else | |
760 | { | |
761 | font_object = font_make_object (VECSIZE (struct nsfont_info), | |
762 | font_entity, pixel_size); | |
763 | if (!synthItal) | |
8840261a AR |
764 | [fontCache setObject: [NSNumber numberWithUnsignedLong: |
765 | (unsigned long) XHASH (font_object)] | |
766 | forKey: nsfont]; | |
8d0e382e AR |
767 | } |
768 | ||
769 | font_info = (struct nsfont_info *) XFONT_OBJECT (font_object); | |
8840261a | 770 | font = (struct font *) font_info; |
8d0e382e AR |
771 | if (!font) |
772 | return Qnil; /* FIXME: other terms do, but return Qnil causes segfault */ | |
a68fda4a | 773 | |
15034960 | 774 | font_info->glyphs = (unsigned short **) |
a68fda4a | 775 | xmalloc (0x100 * sizeof (unsigned short *)); |
15034960 | 776 | font_info->metrics = (struct font_metrics **) |
a68fda4a AR |
777 | xmalloc (0x100 * sizeof (struct font_metrics *)); |
778 | if (!font_info->glyphs || !font_info->metrics) | |
facfbbbd | 779 | return Qnil; |
72af86bd AS |
780 | memset (font_info->glyphs, 0, 0x100 * sizeof (unsigned short *)); |
781 | memset (font_info->metrics, 0, 0x100 * sizeof (struct font_metrics *)); | |
a68fda4a | 782 | |
8d0e382e | 783 | BLOCK_INPUT; |
a68fda4a AR |
784 | |
785 | /* for metrics */ | |
786 | sfont = [nsfont screenFont]; | |
787 | if (sfont == nil) | |
788 | sfont = nsfont; | |
789 | ||
790 | /* non-metric backend font struct fields */ | |
791 | font = (struct font *) font_info; | |
792 | font->pixel_size = [sfont pointSize]; | |
793 | font->driver = &nsfont_driver; | |
794 | font->encoding_type = FONT_ENCODING_NOT_DECIDED; | |
795 | font->encoding_charset = -1; | |
796 | font->repertory_charset = -1; | |
797 | font->default_ascent = 0; | |
798 | font->vertical_centering = 0; | |
799 | font->baseline_offset = 0; | |
800 | font->relative_compose = 0; | |
801 | font->font_encoder = NULL; | |
802 | ||
a68fda4a AR |
803 | font->props[FONT_FORMAT_INDEX] = Qns; |
804 | font->props[FONT_FILE_INDEX] = Qnil; | |
805 | ||
806 | { | |
7fa87f63 | 807 | double expand, hshrink; |
a68fda4a AR |
808 | float full_height, min_height, hd; |
809 | const char *fontName = [[nsfont fontName] UTF8String]; | |
810 | int len = strlen (fontName); | |
811 | ||
481ae085 JD |
812 | /* The values specified by fonts are not always exact. For |
813 | * example, a 6x8 font could specify that the descender is | |
814 | * -2.00000405... (represented by 0xc000000220000000). Without | |
815 | * adjustment, the code below would round the descender to -3, | |
816 | * resulting in a font that would be one pixel higher than | |
817 | * intended. */ | |
818 | CGFloat adjusted_descender = [sfont descender] + 0.0001; | |
819 | ||
a68fda4a AR |
820 | #ifdef NS_IMPL_GNUSTEP |
821 | font_info->nsfont = sfont; | |
822 | #else | |
823 | font_info->nsfont = nsfont; | |
824 | #endif | |
825 | [font_info->nsfont retain]; | |
826 | ||
827 | /* set up ns_font (defined in nsgui.h) */ | |
72af86bd AS |
828 | font_info->name = (char *)xmalloc (strlen (fontName)+1); |
829 | strcpy (font_info->name, fontName); | |
a68fda4a AR |
830 | font_info->bold = [fontMgr traitsOfFont: nsfont] & NSBoldFontMask; |
831 | font_info->ital = | |
832 | synthItal || ([fontMgr traitsOfFont: nsfont] & NSItalicFontMask); | |
833 | ||
834 | /* Metrics etc.; some fonts return an unusually large max advance, so we | |
835 | only use it for fonts that have wide characters. */ | |
836 | font_info->width = ([sfont numberOfGlyphs] > 2000) ? | |
8840261a | 837 | [sfont maximumAdvancement].width : ns_char_width (sfont, '0'); |
a68fda4a AR |
838 | |
839 | brect = [sfont boundingRectForFont]; | |
840 | full_height = brect.size.height; | |
481ae085 | 841 | min_height = [sfont ascender] - adjusted_descender; |
a68fda4a AR |
842 | hd = full_height - min_height; |
843 | ||
c6c62e78 | 844 | /* standard height, similar to Carbon. Emacs.app: was 0.5 by default. */ |
7fa87f63 | 845 | expand = 0.0; |
c6c62e78 | 846 | hshrink = 1.0; |
a68fda4a | 847 | |
a68fda4a AR |
848 | font_info->underpos = 2; /*[sfont underlinePosition] is often clipped out */ |
849 | font_info->underwidth = [sfont underlineThickness]; | |
850 | font_info->size = font->pixel_size; | |
851 | font_info->voffset = lrint (hshrink * [sfont ascender] + expand * hd / 2); | |
852 | ||
853 | /* max bounds */ | |
854 | font_info->max_bounds.ascent = | |
855 | lrint (hshrink * [sfont ascender] + expand * hd/2); | |
481ae085 | 856 | /* Descender is usually negative. Use floor to avoid |
14a225f9 | 857 | clipping descenders. */ |
a68fda4a | 858 | font_info->max_bounds.descent = |
481ae085 | 859 | -lrint (floor(hshrink* adjusted_descender - expand*hd/2)); |
a68fda4a AR |
860 | font_info->height = |
861 | font_info->max_bounds.ascent + font_info->max_bounds.descent; | |
862 | font_info->max_bounds.width = lrint (font_info->width); | |
863 | font_info->max_bounds.lbearing = lrint (brect.origin.x); | |
864 | font_info->max_bounds.rbearing = | |
865 | lrint (brect.size.width - font_info->width); | |
a68fda4a AR |
866 | |
867 | #ifdef NS_IMPL_COCOA | |
868 | /* set up synthItal and the CG font */ | |
869 | font_info->synthItal = synthItal; | |
870 | { | |
871 | ATSFontRef atsFont = ATSFontFindFromPostScriptName | |
872 | ((CFStringRef)[nsfont fontName], kATSOptionFlagsDefault); | |
873 | ||
874 | if (atsFont == kATSFontRefUnspecified) | |
875 | { | |
876 | /* see if we can get it by dropping italic (then synthesizing) */ | |
877 | atsFont = ATSFontFindFromPostScriptName ((CFStringRef) | |
878 | [[fontMgr convertFont: nsfont toNotHaveTrait: NSItalicFontMask] | |
879 | fontName], kATSOptionFlagsDefault); | |
880 | if (atsFont != kATSFontRefUnspecified) | |
881 | font_info->synthItal = YES; | |
882 | else | |
883 | { | |
884 | /* last resort fallback */ | |
885 | atsFont = ATSFontFindFromPostScriptName | |
886 | ((CFStringRef)@"Monaco", kATSOptionFlagsDefault); | |
887 | } | |
888 | } | |
889 | font_info->cgfont = CGFontCreateWithPlatformFont ((void*)&atsFont); | |
890 | } | |
891 | #endif | |
892 | ||
893 | /* set up metrics portion of font struct */ | |
14a225f9 | 894 | font->ascent = lrint([sfont ascender]); |
481ae085 | 895 | font->descent = -lrint(floor(adjusted_descender)); |
e28db5bc | 896 | font->min_width = ns_char_width(sfont, '|'); |
8840261a | 897 | font->space_width = lrint (ns_char_width (sfont, ' ')); |
a68fda4a AR |
898 | font->average_width = lrint (font_info->width); |
899 | font->max_width = lrint (font_info->max_bounds.width); | |
900 | font->height = lrint (font_info->height); | |
901 | font->underline_position = lrint (font_info->underpos); | |
902 | font->underline_thickness = lrint (font_info->underwidth); | |
903 | ||
904 | font->props[FONT_NAME_INDEX] = Ffont_xlfd_name (font_object, Qnil); | |
905 | font->props[FONT_FULLNAME_INDEX] = | |
906 | make_unibyte_string (font_info->name, strlen (font_info->name)); | |
907 | } | |
908 | UNBLOCK_INPUT; | |
909 | ||
910 | return font_object; | |
911 | } | |
912 | ||
913 | ||
914 | /* Close FONT on frame F. */ | |
915 | static void | |
916 | nsfont_close (FRAME_PTR f, struct font *font) | |
917 | { | |
918 | struct nsfont_info *font_info = (struct nsfont_info *)font; | |
919 | int i; | |
920 | ||
df2142db | 921 | /* FIXME: this occurs apparently due to same failure to detect same font |
8840261a | 922 | that causes need for cache in nsfont_open () */ |
a68fda4a AR |
923 | if (!font_info) |
924 | return; | |
925 | ||
926 | for (i =0; i<0x100; i++) | |
927 | { | |
5f445726 JM |
928 | xfree (font_info->glyphs[i]); |
929 | xfree (font_info->metrics[i]); | |
a68fda4a AR |
930 | } |
931 | [font_info->nsfont release]; | |
932 | #ifdef NS_IMPL_COCOA | |
8840261a | 933 | CGFontRelease (font_info->cgfont); |
a68fda4a | 934 | #endif |
8840261a AR |
935 | xfree (font_info->name); |
936 | xfree (font_info); | |
a68fda4a AR |
937 | } |
938 | ||
939 | ||
940 | /* If FONT_ENTITY has a glyph for character C (Unicode code point), | |
941 | return 1. If not, return 0. If a font must be opened to check | |
942 | it, return -1. */ | |
943 | static int | |
944 | nsfont_has_char (Lisp_Object entity, int c) | |
945 | { | |
946 | return -1; | |
947 | } | |
948 | ||
949 | ||
950 | /* Return a glyph code of FONT for character C (Unicode code point). | |
951 | If FONT doesn't have such a glyph, return FONT_INVALID_CODE. */ | |
952 | static unsigned int | |
953 | nsfont_encode_char (struct font *font, int c) | |
954 | { | |
955 | struct nsfont_info *font_info = (struct nsfont_info *)font; | |
956 | unsigned char high = (c & 0xff00) >> 8, low = c & 0x00ff; | |
957 | unsigned short g; | |
958 | ||
959 | if (c > 0xFFFF) | |
960 | return FONT_INVALID_CODE; | |
961 | ||
962 | /* did we already cache this block? */ | |
963 | if (!font_info->glyphs[high]) | |
964 | ns_uni_to_glyphs (font_info, high); | |
965 | ||
966 | g = font_info->glyphs[high][low]; | |
a68fda4a AR |
967 | return g == 0xFFFF ? FONT_INVALID_CODE : g; |
968 | } | |
969 | ||
970 | ||
971 | /* Perform the size computation of glyphs of FONT and fill in members | |
972 | of METRICS. The glyphs are specified by their glyph codes in | |
973 | CODE (length NGLYPHS). */ | |
974 | static int | |
975 | nsfont_text_extents (struct font *font, unsigned int *code, int nglyphs, | |
976 | struct font_metrics *metrics) | |
977 | { | |
978 | struct nsfont_info *font_info = (struct nsfont_info *)font; | |
979 | struct font_metrics *pcm; | |
980 | unsigned char high, low; | |
981 | int totalWidth = 0; | |
982 | int i; | |
983 | ||
72af86bd | 984 | memset (metrics, 0, sizeof (struct font_metrics)); |
a68fda4a AR |
985 | |
986 | for (i =0; i<nglyphs; i++) | |
987 | { | |
988 | /* get metrics for this glyph, filling cache if need be */ | |
df2142db AR |
989 | /* TODO: get metrics for whole string from an NSLayoutManager |
990 | (if not too slow) */ | |
a68fda4a AR |
991 | high = (code[i] & 0xFF00) >> 8; |
992 | low = code[i] & 0x00FF; | |
993 | if (!font_info->metrics[high]) | |
994 | ns_glyph_metrics (font_info, high); | |
995 | pcm = &(font_info->metrics[high][low]); | |
996 | ||
997 | if (metrics->lbearing > totalWidth + pcm->lbearing) | |
998 | metrics->lbearing = totalWidth + pcm->lbearing; | |
999 | if (metrics->rbearing < totalWidth + pcm->rbearing) | |
1000 | metrics->rbearing = totalWidth + pcm->rbearing; | |
1001 | if (metrics->ascent < pcm->ascent) | |
1002 | metrics->ascent = pcm->ascent; | |
1003 | if (metrics->descent < pcm->descent) | |
1004 | metrics->descent = pcm->descent; | |
1005 | ||
1006 | totalWidth += pcm->width; | |
1007 | } | |
1008 | ||
1009 | metrics->width = totalWidth; | |
1010 | ||
1011 | return totalWidth; /* not specified in doc, but xfont.c does it */ | |
1012 | } | |
1013 | ||
1014 | ||
1015 | /* Draw glyphs between FROM and TO of S->char2b at (X Y) pixel | |
1016 | position of frame F with S->FACE and S->GC. If WITH_BACKGROUND | |
1017 | is nonzero, fill the background in advance. It is assured that | |
1018 | WITH_BACKGROUND is zero when (FROM > 0 || TO < S->nchars). */ | |
1019 | static int | |
1020 | nsfont_draw (struct glyph_string *s, int from, int to, int x, int y, | |
1021 | int with_background) | |
1022 | /* NOTE: focus and clip must be set | |
1023 | also, currently assumed (true in nsterm.m call) from ==0, to ==nchars */ | |
1024 | { | |
1025 | static char cbuf[1024]; | |
1026 | char *c = cbuf; | |
1027 | #ifdef NS_IMPL_GNUSTEP | |
1028 | static float advances[1024]; | |
1029 | float *adv = advances; | |
1030 | #else | |
1031 | static CGSize advances[1024]; | |
1032 | CGSize *adv = advances; | |
1033 | #endif | |
1034 | struct face *face; | |
1035 | NSRect r; | |
1036 | struct nsfont_info *font = ns_tmp_font; | |
1037 | NSColor *col, *bgCol; | |
1038 | unsigned short *t = s->char2b; | |
1039 | int i, len; | |
8840261a AR |
1040 | char isComposite = s->first_glyph->type == COMPOSITE_GLYPH; |
1041 | int end = isComposite ? s->cmp_to : s->nchars; | |
a68fda4a AR |
1042 | |
1043 | /* Select face based on input flags */ | |
1044 | switch (ns_tmp_flags) | |
1045 | { | |
1046 | case NS_DUMPGLYPH_CURSOR: | |
1047 | face = s->face; | |
1048 | break; | |
1049 | case NS_DUMPGLYPH_MOUSEFACE: | |
80417b95 | 1050 | face = FACE_FROM_ID (s->f, MOUSE_HL_INFO (s->f)->mouse_face_face_id); |
a68fda4a AR |
1051 | if (!face) |
1052 | face = FACE_FROM_ID (s->f, MOUSE_FACE_ID); | |
1053 | break; | |
1054 | default: | |
1055 | face = s->face; | |
1056 | } | |
1057 | ||
1058 | r.origin.x = s->x; | |
1059 | if (s->face->box != FACE_NO_BOX && s->first_glyph->left_box_line_p) | |
1060 | r.origin.x += abs (s->face->box_line_width); | |
1061 | ||
1062 | r.origin.y = s->y; | |
1063 | r.size.height = FONT_HEIGHT (font); | |
1064 | ||
1065 | /* Convert UTF-16 (?) to UTF-8 and determine advances. Note if we just ask | |
1066 | NS to render the string, it will come out differently from the individual | |
1067 | character widths added up because of layout processing. */ | |
1068 | { | |
1069 | XCharStruct *cs; | |
1070 | int cwidth, twidth = 0; | |
1071 | int hi, lo; | |
df2142db | 1072 | /* FIXME: composition: no vertical displacement is considered. */ |
81cfe31c | 1073 | t += s->cmp_from; /* advance into composition */ |
8840261a | 1074 | for (i = s->cmp_from; i < end; i++, t++) |
a68fda4a AR |
1075 | { |
1076 | hi = (*t & 0xFF00) >> 8; | |
1077 | lo = *t & 0x00FF; | |
1078 | if (isComposite) | |
1079 | { | |
8840261a AR |
1080 | if (!s->first_glyph->u.cmp.automatic) |
1081 | cwidth = s->cmp->offsets[i * 2] /* (H offset) */ - twidth; | |
1082 | else | |
1083 | { | |
1084 | Lisp_Object gstring = composition_gstring_from_id (s->cmp_id); | |
1085 | Lisp_Object glyph = LGSTRING_GLYPH (gstring, i); | |
1086 | if (NILP (LGLYPH_ADJUSTMENT (glyph))) | |
1087 | cwidth = LGLYPH_WIDTH (glyph); | |
1088 | else | |
1089 | { | |
1090 | cwidth = LGLYPH_WADJUST (glyph); | |
1091 | #ifdef NS_IMPL_GNUSTEP | |
1092 | *(adv-1) += LGLYPH_XOFF (glyph); | |
1093 | #else | |
1094 | (*(adv-1)).width += LGLYPH_XOFF (glyph); | |
1095 | #endif | |
1096 | } | |
1097 | } | |
a68fda4a AR |
1098 | } |
1099 | else | |
1100 | { | |
df2142db | 1101 | if (!font->metrics[hi]) /* FIXME: why/how can we need this now? */ |
a68fda4a AR |
1102 | ns_glyph_metrics (font, hi); |
1103 | cwidth = font->metrics[hi][lo].width; | |
1104 | } | |
1105 | twidth += cwidth; | |
1106 | #ifdef NS_IMPL_GNUSTEP | |
1107 | *adv++ = cwidth; | |
1108 | CHAR_STRING_ADVANCE (*t, c); /* this converts the char to UTF-8 */ | |
1109 | #else | |
1110 | (*adv++).width = cwidth; | |
1111 | #endif | |
1112 | } | |
1113 | len = adv - advances; | |
1114 | r.size.width = twidth; | |
1115 | *c = 0; | |
1116 | } | |
1117 | ||
1118 | /* fill background if requested */ | |
8840261a | 1119 | if (with_background && !isComposite) |
a68fda4a AR |
1120 | { |
1121 | NSRect br = r; | |
1122 | int fibw = FRAME_INTERNAL_BORDER_WIDTH (s->f); | |
1123 | int mbox_line_width = max (s->face->box_line_width, 0); | |
1124 | ||
1125 | if (s->row->full_width_p) | |
1126 | { | |
1127 | if (br.origin.x <= fibw + 1 + mbox_line_width) | |
1128 | { | |
1129 | br.size.width += br.origin.x - mbox_line_width; | |
1130 | br.origin.x = mbox_line_width; | |
1131 | } | |
1132 | if (FRAME_PIXEL_WIDTH (s->f) - (br.origin.x + br.size.width) | |
1133 | <= fibw+1) | |
1134 | br.size.width += fibw; | |
1135 | } | |
1136 | if (s->face->box == FACE_NO_BOX) | |
1137 | { | |
1138 | /* expand unboxed top row over internal border */ | |
1139 | if (br.origin.y <= fibw + 1 + mbox_line_width) | |
1140 | { | |
1141 | br.size.height += br.origin.y; | |
1142 | br.origin.y = 0; | |
1143 | } | |
1144 | } | |
1145 | else | |
1146 | { | |
1147 | int correction = abs (s->face->box_line_width)+1; | |
1148 | br.origin.y += correction; | |
1149 | br.size.height -= 2*correction; | |
1150 | br.origin.x += correction; | |
1151 | br.size.width -= 2*correction; | |
1152 | } | |
1153 | ||
1154 | if (!s->face->stipple) | |
45d325c4 | 1155 | [(NS_FACE_BACKGROUND (face) != 0 |
a68fda4a AR |
1156 | ? ns_lookup_indexed_color (NS_FACE_BACKGROUND (face), s->f) |
1157 | : FRAME_BACKGROUND_COLOR (s->f)) set]; | |
1158 | else | |
1159 | { | |
1160 | struct ns_display_info *dpyinfo = FRAME_NS_DISPLAY_INFO (s->f); | |
1161 | [[dpyinfo->bitmaps[face->stipple-1].img stippleMask] set]; | |
1162 | } | |
1163 | NSRectFill (br); | |
1164 | } | |
1165 | ||
1166 | ||
1167 | /* set up for character rendering */ | |
1168 | r.origin.y += font->voffset + (s->height - font->height)/2; | |
1169 | ||
15034960 | 1170 | col = (NS_FACE_FOREGROUND (face) != 0 |
a68fda4a AR |
1171 | ? ns_lookup_indexed_color (NS_FACE_FOREGROUND (face), s->f) |
1172 | : FRAME_FOREGROUND_COLOR (s->f)); | |
df2142db | 1173 | /* FIXME: find another way to pass this */ |
a68fda4a | 1174 | bgCol = (ns_tmp_flags != NS_DUMPGLYPH_FOREGROUND ? nil |
45d325c4 | 1175 | : (NS_FACE_BACKGROUND (face) != 0 |
a68fda4a AR |
1176 | ? ns_lookup_indexed_color (NS_FACE_BACKGROUND (face), s->f) |
1177 | : FRAME_BACKGROUND_COLOR (s->f))); | |
1178 | ||
1179 | /* render under GNUstep using DPS */ | |
1180 | #ifdef NS_IMPL_GNUSTEP | |
1181 | { | |
1182 | NSGraphicsContext *context = GSCurrentContext (); | |
1183 | ||
1184 | DPSgsave (context); | |
1185 | [font->nsfont set]; | |
1186 | ||
1187 | /* do erase if "foreground" mode */ | |
1188 | if (bgCol != nil) | |
1189 | { | |
1190 | [bgCol set]; | |
1191 | DPSmoveto (context, r.origin.x, r.origin.y); | |
1192 | /*[context GSSetTextDrawingMode: GSTextFillStroke]; /// not implemented yet */ | |
1193 | DPSxshow (context, cbuf, advances, len); | |
1194 | DPSstroke (context); | |
1195 | [col set]; | |
1196 | /*[context GSSetTextDrawingMode: GSTextFill]; /// not implemented yet */ | |
1197 | } | |
1198 | ||
1199 | /* do underline */ | |
1200 | if (face->underline_p) | |
1201 | { | |
f2f7f42c | 1202 | if (face->underline_color != 0) |
a68fda4a AR |
1203 | [ns_lookup_indexed_color (face->underline_color, s->f) set]; |
1204 | else | |
1205 | [col set]; | |
1206 | DPSmoveto (context, r.origin.x, r.origin.y + font->underpos); | |
1207 | DPSlineto (context, r.origin.x+r.size.width, r.origin.y+font->underpos); | |
f2f7f42c | 1208 | if (face->underline_color != 0) |
a68fda4a AR |
1209 | [col set]; |
1210 | } | |
1211 | else | |
1212 | [col set]; | |
1213 | ||
1214 | /* draw with DPSxshow () */ | |
1215 | DPSmoveto (context, r.origin.x, r.origin.y); | |
1216 | DPSxshow (context, cbuf, advances, len); | |
1217 | DPSstroke (context); | |
1218 | ||
1219 | DPSgrestore (context); | |
a68fda4a AR |
1220 | } |
1221 | ||
1222 | #else /* NS_IMPL_COCOA */ | |
1223 | { | |
1224 | CGContextRef gcontext = | |
1225 | [[NSGraphicsContext currentContext] graphicsPort]; | |
1226 | static CGAffineTransform fliptf; | |
1227 | static BOOL firstTime = YES; | |
1228 | ||
1229 | if (firstTime) | |
1230 | { | |
1231 | firstTime = NO; | |
1232 | fliptf = CGAffineTransformMakeScale (1.0, -1.0); | |
1233 | } | |
1234 | ||
1235 | CGContextSaveGState (gcontext); | |
1236 | ||
1237 | fliptf.c = font->synthItal ? Fix2X (kATSItalicQDSkew) : 0.0; | |
1238 | ||
1239 | CGContextSetFont (gcontext, font->cgfont); | |
1240 | CGContextSetFontSize (gcontext, font->size); | |
cf2fdcfb | 1241 | if (NILP (ns_antialias_text) || font->size <= ns_antialias_threshold) |
a68fda4a AR |
1242 | CGContextSetShouldAntialias (gcontext, 0); |
1243 | else | |
1244 | CGContextSetShouldAntialias (gcontext, 1); | |
a68fda4a AR |
1245 | |
1246 | CGContextSetTextMatrix (gcontext, fliptf); | |
1247 | ||
1248 | if (bgCol != nil) | |
1249 | { | |
1250 | /* foreground drawing; erase first to avoid overstrike */ | |
1251 | [bgCol set]; | |
1252 | CGContextSetTextDrawingMode (gcontext, kCGTextFillStroke); | |
1253 | CGContextSetTextPosition (gcontext, r.origin.x, r.origin.y); | |
1254 | CGContextShowGlyphsWithAdvances (gcontext, s->char2b, advances, len); | |
1255 | CGContextSetTextDrawingMode (gcontext, kCGTextFill); | |
1256 | } | |
1257 | ||
1258 | if (face->underline_p) | |
1259 | { | |
15034960 | 1260 | if (face->underline_color != 0) |
a68fda4a AR |
1261 | [ns_lookup_indexed_color (face->underline_color, s->f) set]; |
1262 | else | |
1263 | [col set]; | |
1264 | CGContextBeginPath (gcontext); | |
1265 | CGContextMoveToPoint (gcontext, | |
1266 | r.origin.x, r.origin.y + font->underpos); | |
1267 | CGContextAddLineToPoint (gcontext, r.origin.x + r.size.width, | |
1268 | r.origin.y + font->underpos); | |
1269 | CGContextStrokePath (gcontext); | |
15034960 | 1270 | if (face->underline_color != 0) |
a68fda4a AR |
1271 | [col set]; |
1272 | } | |
1273 | else | |
1274 | [col set]; | |
1275 | ||
1276 | CGContextSetTextPosition (gcontext, r.origin.x, r.origin.y); | |
93c7fcf8 | 1277 | CGContextShowGlyphsWithAdvances (gcontext, s->char2b + s->cmp_from, |
a68fda4a AR |
1278 | advances, len); |
1279 | ||
1280 | if (face->overstrike) | |
1281 | { | |
1282 | CGContextSetTextPosition (gcontext, r.origin.x+0.5, r.origin.y); | |
93c7fcf8 | 1283 | CGContextShowGlyphsWithAdvances (gcontext, s->char2b + s->cmp_from, |
a68fda4a AR |
1284 | advances, len); |
1285 | } | |
1286 | ||
1287 | CGContextRestoreGState (gcontext); | |
a68fda4a AR |
1288 | } |
1289 | #endif /* NS_IMPL_COCOA */ | |
3fdebbf9 | 1290 | return to-from; |
a68fda4a AR |
1291 | } |
1292 | ||
1293 | ||
a68fda4a AR |
1294 | |
1295 | /* ========================================================================== | |
1296 | ||
1297 | Font glyph and metrics caching functions | |
1298 | ||
1299 | ========================================================================== */ | |
1300 | ||
1301 | /* Find and cache corresponding glyph codes for unicode values in given | |
1302 | hi-byte block of 256. */ | |
1303 | static void | |
1304 | ns_uni_to_glyphs (struct nsfont_info *font_info, unsigned char block) | |
1305 | { | |
1306 | #ifdef NS_IMPL_COCOA | |
1307 | static EmacsGlyphStorage *glyphStorage; | |
1308 | static char firstTime = 1; | |
1309 | #endif | |
1310 | unichar *unichars = xmalloc (0x101 * sizeof (unichar)); | |
1311 | unsigned int i, g, idx; | |
1312 | unsigned short *glyphs; | |
1313 | ||
1314 | if (NSFONT_TRACE) | |
1315 | fprintf (stderr, "%p\tFinding glyphs for glyphs in block %d\n", | |
1316 | font_info, block); | |
1317 | ||
1318 | BLOCK_INPUT; | |
1319 | ||
1320 | #ifdef NS_IMPL_COCOA | |
1321 | if (firstTime) | |
1322 | { | |
1323 | firstTime = 0; | |
1324 | glyphStorage = [[EmacsGlyphStorage alloc] initWithCapacity: 0x100]; | |
1325 | } | |
1326 | #endif | |
1327 | ||
1328 | font_info->glyphs[block] = xmalloc (0x100 * sizeof (unsigned short)); | |
1329 | if (!unichars || !(font_info->glyphs[block])) | |
1330 | abort (); | |
1331 | ||
1332 | /* create a string containing all unicode characters in this block */ | |
1333 | for (idx = block<<8, i =0; i<0x100; idx++, i++) | |
1334 | if (idx < 0xD800 || idx > 0xDFFF) | |
1335 | unichars[i] = idx; | |
1336 | else | |
1337 | unichars[i] = 0xFEFF; | |
1338 | unichars[0x100] = 0; | |
1339 | ||
1340 | { | |
1341 | #ifdef NS_IMPL_COCOA | |
1342 | NSString *allChars = [[NSString alloc] | |
1343 | initWithCharactersNoCopy: unichars | |
1344 | length: 0x100 | |
1345 | freeWhenDone: NO]; | |
1346 | NSGlyphGenerator *glyphGenerator = [NSGlyphGenerator sharedGlyphGenerator]; | |
1347 | /*NSCharacterSet *coveredChars = [nsfont coveredCharacterSet]; */ | |
1348 | unsigned int numGlyphs = [font_info->nsfont numberOfGlyphs]; | |
e28db5bc | 1349 | NSUInteger gInd =0, cInd =0; |
a68fda4a AR |
1350 | |
1351 | [glyphStorage setString: allChars font: font_info->nsfont]; | |
1352 | [glyphGenerator generateGlyphsForGlyphStorage: glyphStorage | |
1353 | desiredNumberOfCharacters: glyphStorage->maxChar | |
1354 | glyphIndex: &gInd characterIndex: &cInd]; | |
1355 | #endif | |
1356 | glyphs = font_info->glyphs[block]; | |
1357 | for (i =0; i<0x100; i++, glyphs++) | |
1358 | { | |
1359 | #ifdef NS_IMPL_GNUSTEP | |
1360 | g = unichars[i]; | |
1361 | #else | |
1362 | g = glyphStorage->cglyphs[i]; | |
df2142db | 1363 | /* TODO: is this a good check? maybe need to use coveredChars.. */ |
a68fda4a AR |
1364 | if (g > numGlyphs) |
1365 | g = 0xFFFF; /* hopefully unused... */ | |
1366 | #endif | |
1367 | *glyphs = g; | |
1368 | } | |
1369 | ||
1370 | #ifdef NS_IMPL_COCOA | |
1371 | [allChars release]; | |
1372 | #endif | |
1373 | } | |
1374 | ||
1375 | UNBLOCK_INPUT; | |
1376 | xfree (unichars); | |
1377 | } | |
1378 | ||
1379 | ||
1380 | /* Determine and cache metrics for corresponding glyph codes in given | |
1381 | hi-byte block of 256. */ | |
1382 | static void | |
1383 | ns_glyph_metrics (struct nsfont_info *font_info, unsigned char block) | |
1384 | { | |
1385 | unsigned int i, g; | |
1386 | unsigned int numGlyphs = [font_info->nsfont numberOfGlyphs]; | |
1387 | NSFont *sfont; | |
1388 | struct font_metrics *metrics; | |
1389 | ||
1390 | if (NSFONT_TRACE) | |
1391 | fprintf (stderr, "%p\tComputing metrics for glyphs in block %d\n", | |
1392 | font_info, block); | |
1393 | ||
1394 | #ifdef NS_IMPL_GNUSTEP | |
1395 | /* not implemented yet (as of startup 0.18), so punt */ | |
1396 | if (numGlyphs == 0) | |
1397 | numGlyphs = 0x10000; | |
1398 | #endif | |
1399 | ||
1400 | BLOCK_INPUT; | |
1401 | sfont = [font_info->nsfont screenFont]; | |
1402 | ||
1403 | font_info->metrics[block] = xmalloc (0x100 * sizeof (struct font_metrics)); | |
72af86bd | 1404 | memset (font_info->metrics[block], 0, 0x100 * sizeof (struct font_metrics)); |
a68fda4a AR |
1405 | if (!(font_info->metrics[block])) |
1406 | abort (); | |
1407 | ||
1408 | metrics = font_info->metrics[block]; | |
1409 | for (g = block<<8, i =0; i<0x100 && g < numGlyphs; g++, i++, metrics++) | |
1410 | { | |
1411 | float w, lb, rb; | |
1412 | NSRect r = [sfont boundingRectForGlyph: g]; | |
1413 | ||
6e2f42b4 | 1414 | w = max ([sfont advancementForGlyph: g].width, 2.0); |
a68fda4a AR |
1415 | metrics->width = lrint (w); |
1416 | ||
1417 | lb = r.origin.x; | |
1418 | rb = r.size.width - w; | |
1419 | if (lb < 0) | |
1420 | metrics->lbearing = round (lb); | |
1421 | if (font_info->ital) | |
1422 | rb += 0.22 * font_info->height; | |
1423 | metrics->rbearing = lrint (w + rb); | |
1424 | ||
1425 | metrics->descent = r.origin.y < 0 ? -r.origin.y : 0; | |
1426 | /*lrint (hshrink * [sfont ascender] + expand * hd/2); */ | |
1427 | metrics->ascent = r.size.height - metrics->descent; | |
1428 | /*-lrint (hshrink* [sfont descender] - expand * hd/2); */ | |
1429 | } | |
1430 | UNBLOCK_INPUT; | |
1431 | } | |
1432 | ||
1433 | ||
1434 | #ifdef NS_IMPL_COCOA | |
1435 | /* helper for font glyph setup */ | |
1436 | @implementation EmacsGlyphStorage | |
1437 | ||
1438 | - init | |
1439 | { | |
1440 | return [self initWithCapacity: 1024]; | |
1441 | } | |
1442 | ||
1443 | - initWithCapacity: (unsigned long) c | |
1444 | { | |
1445 | self = [super init]; | |
1446 | maxChar = 0; | |
1447 | maxGlyph = 0; | |
1448 | dict = [NSMutableDictionary new]; | |
1449 | cglyphs = (CGGlyph *)xmalloc (c * sizeof (CGGlyph)); | |
1450 | return self; | |
1451 | } | |
1452 | ||
1453 | - (void) dealloc | |
1454 | { | |
1455 | if (attrStr != nil) | |
1456 | [attrStr release]; | |
1457 | [dict release]; | |
1458 | xfree (cglyphs); | |
1459 | [super dealloc]; | |
1460 | } | |
1461 | ||
1462 | - (void) setString: (NSString *)str font: (NSFont *)font | |
1463 | { | |
1464 | [dict setObject: font forKey: NSFontAttributeName]; | |
1465 | attrStr = [[NSAttributedString alloc] initWithString: str attributes: dict]; | |
1466 | maxChar = [str length]; | |
1467 | maxGlyph = 0; | |
1468 | } | |
1469 | ||
1470 | /* NSGlyphStorage protocol */ | |
e28db5bc | 1471 | - (NSUInteger)layoutOptions |
a68fda4a AR |
1472 | { |
1473 | return 0; | |
1474 | } | |
1475 | ||
1476 | - (NSAttributedString *)attributedString | |
1477 | { | |
1478 | return attrStr; | |
1479 | } | |
1480 | ||
e28db5bc AR |
1481 | - (void)insertGlyphs: (const NSGlyph *)glyphs length: (NSUInteger)length |
1482 | forStartingGlyphAtIndex: (NSUInteger)glyphIndex | |
1483 | characterIndex: (NSUInteger)charIndex | |
a68fda4a AR |
1484 | { |
1485 | len = glyphIndex+length; | |
1486 | for (i =glyphIndex; i<len; i++) | |
1487 | cglyphs[i] = glyphs[i-glyphIndex]; | |
1488 | if (len > maxGlyph) | |
1489 | maxGlyph = len; | |
1490 | } | |
1491 | ||
e28db5bc AR |
1492 | - (void)setIntAttribute: (NSInteger)attributeTag value: (NSInteger)val |
1493 | forGlyphAtIndex: (NSUInteger)glyphIndex | |
a68fda4a AR |
1494 | { |
1495 | return; | |
1496 | } | |
1497 | ||
1498 | @end | |
1499 | #endif /* NS_IMPL_COCOA */ | |
1500 | ||
1501 | ||
1502 | /* Debugging */ | |
1503 | void | |
8840261a | 1504 | ns_dump_glyphstring (struct glyph_string *s) |
a68fda4a AR |
1505 | { |
1506 | int i; | |
1507 | ||
8840261a AR |
1508 | fprintf (stderr, "Glyph string len = %d at (%d, %d) overhang (%d, %d)," |
1509 | "overlap = %d, bg_filled = %d:", | |
a68fda4a AR |
1510 | s->nchars, s->x, s->y, s->left_overhang, s->right_overhang, |
1511 | s->row->overlapping_p, s->background_filled_p); | |
1512 | for (i =0; i<s->nchars; i++) | |
1513 | fprintf (stderr, "%c", s->first_glyph[i].u.ch); | |
1514 | fprintf (stderr, "\n"); | |
1515 | } | |
1516 | ||
1517 | ||
a68fda4a | 1518 | void |
3d608a86 | 1519 | syms_of_nsfont (void) |
a68fda4a AR |
1520 | { |
1521 | nsfont_driver.type = Qns; | |
1522 | register_font_driver (&nsfont_driver, NULL); | |
1523 | DEFSYM (Qapple, "apple"); | |
1524 | DEFSYM (Qroman, "roman"); | |
1525 | DEFSYM (Qmedium, "medium"); | |
fb9d0f5a | 1526 | DEFVAR_LISP ("ns-reg-to-script", Vns_reg_to_script, |
87f66bd3 | 1527 | doc: /* Internal use: maps font registry to unicode script. */); |
a68fda4a | 1528 | } |