| 1 | /* Font back-end driver for the NeXT/Open/GNUstep and MacOSX window system. |
| 2 | See font.h |
| 3 | Copyright (C) 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of GNU Emacs. |
| 6 | |
| 7 | GNU Emacs is free software: you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation, either version 3 of the License, or |
| 10 | (at your option) any later version. |
| 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 |
| 18 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
| 19 | |
| 20 | Author: Adrian Robert (arobert@cogsci.ucsd.edu) |
| 21 | */ |
| 22 | |
| 23 | /* This should be the first include, as it may set up #defines affecting |
| 24 | interpretation of even the system includes. */ |
| 25 | #include <config.h> |
| 26 | #include <setjmp.h> |
| 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" |
| 40 | |
| 41 | /* TODO: Drop once we can assume gnustep-gui 0.17.1. */ |
| 42 | #ifdef NS_IMPL_GNUSTEP |
| 43 | #import <AppKit/NSFontDescriptor.h> |
| 44 | #endif |
| 45 | |
| 46 | #define NSFONT_TRACE 0 |
| 47 | |
| 48 | extern Lisp_Object Qns; |
| 49 | extern Lisp_Object Qnormal, Qbold, Qitalic, Qcondensed, Qexpanded; |
| 50 | static Lisp_Object Vns_reg_to_script; |
| 51 | static Lisp_Object Qapple, Qroman, Qmedium; |
| 52 | extern Lisp_Object Qappend; |
| 53 | extern Lisp_Object ns_antialias_text; |
| 54 | extern float ns_antialias_threshold; |
| 55 | extern int ns_tmp_flags; |
| 56 | extern struct nsfont_info *ns_tmp_font; |
| 57 | |
| 58 | /* font glyph and metrics caching functions, implemented at end */ |
| 59 | static void ns_uni_to_glyphs (struct nsfont_info *font_info, |
| 60 | unsigned char block); |
| 61 | static void ns_glyph_metrics (struct nsfont_info *font_info, |
| 62 | unsigned char block); |
| 63 | |
| 64 | |
| 65 | /* ========================================================================== |
| 66 | |
| 67 | Utilities |
| 68 | |
| 69 | ========================================================================== */ |
| 70 | |
| 71 | |
| 72 | /* Replace spaces w/another character so emacs core font parsing routines |
| 73 | aren't thrown off. */ |
| 74 | static void |
| 75 | ns_escape_name (char *name) |
| 76 | { |
| 77 | int i =0, len =strlen (name); |
| 78 | for ( ; i<len; i++) |
| 79 | if (name[i] == ' ') |
| 80 | name[i] = '_'; |
| 81 | } |
| 82 | |
| 83 | |
| 84 | /* Reconstruct spaces in a font family name passed through emacs. */ |
| 85 | static void |
| 86 | ns_unescape_name (char *name) |
| 87 | { |
| 88 | int i =0, len =strlen (name); |
| 89 | for ( ; i<len; i++) |
| 90 | if (name[i] == '_') |
| 91 | name[i] = ' '; |
| 92 | } |
| 93 | |
| 94 | |
| 95 | /* Extract family name from a font spec. */ |
| 96 | static NSString * |
| 97 | ns_get_family (Lisp_Object font_spec) |
| 98 | { |
| 99 | Lisp_Object tem = AREF (font_spec, FONT_FAMILY_INDEX); |
| 100 | if (NILP (tem)) |
| 101 | return nil; |
| 102 | else |
| 103 | { |
| 104 | char *tmp = strdup (SDATA (SYMBOL_NAME (tem))); |
| 105 | NSString *family; |
| 106 | ns_unescape_name (tmp); |
| 107 | family = [NSString stringWithUTF8String: tmp]; |
| 108 | free (tmp); |
| 109 | return family; |
| 110 | } |
| 111 | } |
| 112 | |
| 113 | |
| 114 | /* Return 0 if attr not set, else value (which might also be 0). |
| 115 | On Leopard 0 gets returned even on descriptors where the attribute |
| 116 | was never set, so there's no way to distinguish between unspecified |
| 117 | and set to not have. Callers should assume 0 means unspecified. */ |
| 118 | static float |
| 119 | ns_attribute_fvalue (NSFontDescriptor *fdesc, NSString *trait) |
| 120 | { |
| 121 | NSDictionary *tdict = [fdesc objectForKey: NSFontTraitsAttribute]; |
| 122 | NSNumber *val = [tdict objectForKey: trait]; |
| 123 | return val == nil ? 0.0 : [val floatValue]; |
| 124 | } |
| 125 | |
| 126 | |
| 127 | /* Converts FONT_WEIGHT, FONT_SLANT, FONT_WIDTH, plus family and script/lang |
| 128 | to NSFont descriptor. Information under extra only needed for matching. */ |
| 129 | #define STYLE_REF 100 |
| 130 | static NSFontDescriptor |
| 131 | *ns_spec_to_descriptor(Lisp_Object font_spec) |
| 132 | { |
| 133 | NSFontDescriptor *fdesc; |
| 134 | NSMutableDictionary *fdAttrs = [NSMutableDictionary new]; |
| 135 | NSMutableDictionary *tdict = [NSMutableDictionary new]; |
| 136 | NSString *family = ns_get_family (font_spec); |
| 137 | float n; |
| 138 | |
| 139 | /* add each attr in font_spec to fdAttrs.. */ |
| 140 | n = min (FONT_WEIGHT_NUMERIC (font_spec), 200); |
| 141 | if (n != -1 && n != STYLE_REF) |
| 142 | [tdict setObject: [NSNumber numberWithFloat: (n - 100.0) / 100.0] |
| 143 | forKey: NSFontWeightTrait]; |
| 144 | n = min (FONT_SLANT_NUMERIC (font_spec), 200); |
| 145 | if (n != -1 && n != STYLE_REF) |
| 146 | [tdict setObject: [NSNumber numberWithFloat: (n - 100.0) / 100.0] |
| 147 | forKey: NSFontSlantTrait]; |
| 148 | n = min (FONT_WIDTH_NUMERIC (font_spec), 200); |
| 149 | if (n > -1 && (n > STYLE_REF + 10 || n < STYLE_REF - 10)) |
| 150 | [tdict setObject: [NSNumber numberWithFloat: (n - 100.0) / 100.0] |
| 151 | forKey: NSFontWidthTrait]; |
| 152 | if ([tdict count] > 0) |
| 153 | [fdAttrs setObject: tdict forKey: NSFontTraitsAttribute]; |
| 154 | |
| 155 | fdesc = [NSFontDescriptor fontDescriptorWithFontAttributes: fdAttrs]; |
| 156 | if (family != nil) |
| 157 | fdesc = [fdesc fontDescriptorWithFamily: family]; |
| 158 | return fdesc; |
| 159 | } |
| 160 | |
| 161 | |
| 162 | /* Converts NSFont descriptor to FONT_WEIGHT, FONT_SLANT, FONT_WIDTH, etc.. */ |
| 163 | static Lisp_Object |
| 164 | ns_descriptor_to_entity (NSFontDescriptor *desc, Lisp_Object extra, char *style) |
| 165 | { |
| 166 | Lisp_Object font_entity = font_make_entity (); |
| 167 | /* NSString *psName = [desc postscriptName]; */ |
| 168 | NSString *family = [desc objectForKey: NSFontFamilyAttribute]; |
| 169 | unsigned int traits = [desc symbolicTraits]; |
| 170 | char *escapedFamily; |
| 171 | |
| 172 | /* Shouldn't happen, but on Tiger fallback desc gets name but no family. */ |
| 173 | if (family == nil) |
| 174 | family = [desc objectForKey: NSFontNameAttribute]; |
| 175 | if (family == nil) |
| 176 | family = [[NSFont userFixedPitchFontOfSize: 0] familyName]; |
| 177 | |
| 178 | escapedFamily = strdup ([family UTF8String]); |
| 179 | ns_escape_name (escapedFamily); |
| 180 | |
| 181 | ASET (font_entity, FONT_TYPE_INDEX, Qns); |
| 182 | ASET (font_entity, FONT_FOUNDRY_INDEX, Qapple); |
| 183 | ASET (font_entity, FONT_FAMILY_INDEX, intern (escapedFamily)); |
| 184 | ASET (font_entity, FONT_ADSTYLE_INDEX, style ? intern (style) : Qnil); |
| 185 | ASET (font_entity, FONT_REGISTRY_INDEX, Qiso10646_1); |
| 186 | |
| 187 | FONT_SET_STYLE (font_entity, FONT_WEIGHT_INDEX, |
| 188 | traits & NSFontBoldTrait ? Qbold : Qmedium); |
| 189 | /* FONT_SET_STYLE (font_entity, FONT_WEIGHT_INDEX, |
| 190 | make_number (100 + 100 |
| 191 | * ns_attribute_fvalue (desc, NSFontWeightTrait)));*/ |
| 192 | FONT_SET_STYLE (font_entity, FONT_SLANT_INDEX, |
| 193 | traits & NSFontItalicTrait ? Qitalic : Qnormal); |
| 194 | /* FONT_SET_STYLE (font_entity, FONT_SLANT_INDEX, |
| 195 | make_number (100 + 100 |
| 196 | * ns_attribute_fvalue (desc, NSFontSlantTrait)));*/ |
| 197 | FONT_SET_STYLE (font_entity, FONT_WIDTH_INDEX, |
| 198 | traits & NSFontCondensedTrait ? Qcondensed : |
| 199 | traits & NSFontExpandedTrait ? Qexpanded : Qnormal); |
| 200 | /* FONT_SET_STYLE (font_entity, FONT_WIDTH_INDEX, |
| 201 | make_number (100 + 100 |
| 202 | * ns_attribute_fvalue (desc, NSFontWidthTrait)));*/ |
| 203 | |
| 204 | ASET (font_entity, FONT_SIZE_INDEX, make_number (0)); |
| 205 | ASET (font_entity, FONT_AVGWIDTH_INDEX, make_number (0)); |
| 206 | ASET (font_entity, FONT_SPACING_INDEX, |
| 207 | make_number([desc symbolicTraits] & NSFontMonoSpaceTrait |
| 208 | ? FONT_SPACING_MONO : FONT_SPACING_PROPORTIONAL)); |
| 209 | |
| 210 | ASET (font_entity, FONT_EXTRA_INDEX, extra); |
| 211 | ASET (font_entity, FONT_OBJLIST_INDEX, Qnil); |
| 212 | |
| 213 | if (NSFONT_TRACE) |
| 214 | { |
| 215 | fprintf (stderr, "created font_entity:\n "); |
| 216 | debug_print (font_entity); |
| 217 | } |
| 218 | |
| 219 | free (escapedFamily); |
| 220 | return font_entity; |
| 221 | } |
| 222 | |
| 223 | |
| 224 | /* Default font entity. */ |
| 225 | static Lisp_Object |
| 226 | ns_fallback_entity () |
| 227 | { |
| 228 | return ns_descriptor_to_entity ([[NSFont userFixedPitchFontOfSize: 0] |
| 229 | fontDescriptor], Qnil, NULL); |
| 230 | } |
| 231 | |
| 232 | |
| 233 | /* Utility: get width of a char c in screen font sfont */ |
| 234 | static float |
| 235 | ns_char_width (NSFont *sfont, int c) |
| 236 | { |
| 237 | float w; |
| 238 | NSString *cstr = [NSString stringWithFormat: @"%c", c]; |
| 239 | #ifdef NS_IMPL_COCOA |
| 240 | NSGlyph glyph = [sfont glyphWithName: cstr]; |
| 241 | if (glyph) |
| 242 | { |
| 243 | float w = [sfont advancementForGlyph: glyph].width; |
| 244 | if (w >= 1.5) |
| 245 | return w; |
| 246 | } |
| 247 | #endif |
| 248 | { |
| 249 | NSDictionary *attrsDictionary = |
| 250 | [NSDictionary dictionaryWithObject: sfont forKey: NSFontAttributeName]; |
| 251 | w = [cstr sizeWithAttributes: attrsDictionary].width; |
| 252 | } |
| 253 | return max (w, 2.0); |
| 254 | } |
| 255 | |
| 256 | |
| 257 | /* Return whether set1 covers set2 to a reasonable extent given by pct. |
| 258 | We check, out of each 16 unicode char range containing chars in set2, |
| 259 | whether at least one character is present in set1. |
| 260 | This must be true for pct of the pairs to consider it covering. */ |
| 261 | static BOOL |
| 262 | ns_charset_covers(NSCharacterSet *set1, NSCharacterSet *set2, float pct) |
| 263 | { |
| 264 | const unsigned short *bytes1 = [[set1 bitmapRepresentation] bytes]; |
| 265 | const unsigned short *bytes2 = [[set2 bitmapRepresentation] bytes]; |
| 266 | int i, off = 0, tot = 0; |
| 267 | |
| 268 | for (i=0; i<4096; i++, bytes1++, bytes2++) |
| 269 | if (*bytes2) |
| 270 | { |
| 271 | tot++; |
| 272 | if (*bytes1 == 0) // *bytes1 & *bytes2 != *bytes2 |
| 273 | off++; |
| 274 | } |
| 275 | //fprintf(stderr, "off = %d\ttot = %d\n", off,tot); |
| 276 | return (float)off / tot < 1.0 - pct; |
| 277 | } |
| 278 | |
| 279 | |
| 280 | /* Convert :lang property to a script. Use of :lang property by font backend |
| 281 | seems to be limited for now (2009/05) to ja, zh, and ko. */ |
| 282 | static NSString |
| 283 | *ns_lang_to_script (Lisp_Object lang) |
| 284 | { |
| 285 | if (!strcmp (SDATA (SYMBOL_NAME (lang)), "ja")) |
| 286 | return @"han"; |
| 287 | /* NOTE: ja given for any hanzi that's also a kanji, but Chinese fonts |
| 288 | have more characters. */ |
| 289 | else if (!strcmp (SDATA (SYMBOL_NAME (lang)), "zh")) |
| 290 | return @"han"; |
| 291 | else if (!strcmp (SDATA (SYMBOL_NAME (lang)), "ko")) |
| 292 | return @"hangul"; |
| 293 | else |
| 294 | return @""; |
| 295 | } |
| 296 | |
| 297 | |
| 298 | /* Convert OTF 4-letter script code to emacs script name. (Why can't |
| 299 | everyone just use some standard unicode names for these?) */ |
| 300 | static NSString |
| 301 | *ns_otf_to_script (Lisp_Object otf) |
| 302 | { |
| 303 | Lisp_Object script = assq_no_quit (XCAR (otf), Votf_script_alist); |
| 304 | return CONSP (script) |
| 305 | ? [NSString stringWithUTF8String: SDATA (SYMBOL_NAME XCDR ((script)))] |
| 306 | : @""; |
| 307 | } |
| 308 | |
| 309 | |
| 310 | /* Convert a font registry, such as */ |
| 311 | static NSString |
| 312 | *ns_registry_to_script (char *reg) |
| 313 | { |
| 314 | Lisp_Object script, r, rts = Vns_reg_to_script; |
| 315 | while CONSP (rts) |
| 316 | { |
| 317 | r = XCAR (XCAR (rts)); |
| 318 | if (!strncmp(SDATA(r), reg, strlen(SDATA(r)))) |
| 319 | { |
| 320 | script = XCDR (XCAR (rts)); |
| 321 | return [NSString stringWithUTF8String: SDATA (SYMBOL_NAME (script))]; |
| 322 | } |
| 323 | rts = XCDR (rts); |
| 324 | } |
| 325 | return @""; |
| 326 | } |
| 327 | |
| 328 | |
| 329 | /* Searches the :script, :lang, and :otf extra-bundle properties of the spec, |
| 330 | plus registry regular property, for something that can be mapped to a |
| 331 | unicode script. Empty string returned if no script spec found. */ |
| 332 | static NSString |
| 333 | *ns_get_req_script (Lisp_Object font_spec) |
| 334 | { |
| 335 | Lisp_Object reg = AREF (font_spec, FONT_REGISTRY_INDEX); |
| 336 | Lisp_Object extra = AREF (font_spec, FONT_EXTRA_INDEX); |
| 337 | |
| 338 | /* The extra-bundle properties have priority. */ |
| 339 | for ( ; CONSP (extra); extra = XCDR (extra)) |
| 340 | { |
| 341 | Lisp_Object tmp = XCAR (extra); |
| 342 | if (CONSP (tmp)) |
| 343 | { |
| 344 | Lisp_Object key = XCAR (tmp), val = XCDR (tmp); |
| 345 | if (EQ (key, QCscript) && SYMBOLP (val)) |
| 346 | return [NSString stringWithUTF8String: |
| 347 | SDATA (SYMBOL_NAME (val))]; |
| 348 | if (EQ (key, QClang) && SYMBOLP (val)) |
| 349 | return ns_lang_to_script (val); |
| 350 | if (EQ (key, QCotf) && CONSP (val) && SYMBOLP (XCAR (val))) |
| 351 | return ns_otf_to_script (val); |
| 352 | } |
| 353 | } |
| 354 | |
| 355 | /* If we get here, check the charset portion of the registry. */ |
| 356 | if (! NILP (reg)) |
| 357 | { |
| 358 | /* XXX: iso10646 is passed in for non-ascii latin-1 characters |
| 359 | (which causes box rendering if we don't treat it like iso8858-1) |
| 360 | but also for ascii (which causes unnecessary font substitution). */ |
| 361 | #if 0 |
| 362 | if (EQ (reg, Qiso10646_1)) |
| 363 | reg = Qiso8859_1; |
| 364 | #endif |
| 365 | return ns_registry_to_script (SDATA (SYMBOL_NAME (reg))); |
| 366 | } |
| 367 | |
| 368 | return @""; |
| 369 | } |
| 370 | |
| 371 | |
| 372 | /* This small function is static in fontset.c. If it can be made public for |
| 373 | all ports, remove this, but otherwise it doesn't seem worth the ifdefs. */ |
| 374 | static void |
| 375 | accumulate_script_ranges (Lisp_Object arg, Lisp_Object range, Lisp_Object val) |
| 376 | { |
| 377 | if (EQ (XCAR (arg), val)) |
| 378 | { |
| 379 | if (CONSP (range)) |
| 380 | XSETCDR (arg, Fcons (Fcons (XCAR (range), XCDR (range)), XCDR (arg))); |
| 381 | else |
| 382 | XSETCDR (arg, Fcons (Fcons (range, range), XCDR (arg))); |
| 383 | } |
| 384 | } |
| 385 | |
| 386 | |
| 387 | /* Use the unicode range information in Vchar_script_table to convert a script |
| 388 | name into an NSCharacterSet. */ |
| 389 | static NSCharacterSet |
| 390 | *ns_script_to_charset (NSString *scriptName) |
| 391 | { |
| 392 | NSMutableCharacterSet *charset = [NSMutableCharacterSet new]; |
| 393 | Lisp_Object script = intern ([scriptName UTF8String]); |
| 394 | Lisp_Object script_list = XCHAR_TABLE (Vchar_script_table)->extras[0]; |
| 395 | |
| 396 | if (! NILP (Fmemq (script, script_list))) |
| 397 | { |
| 398 | Lisp_Object ranges, range_list; |
| 399 | |
| 400 | ranges = Fcons (script, Qnil); |
| 401 | map_char_table (accumulate_script_ranges, Qnil, Vchar_script_table, |
| 402 | ranges); |
| 403 | range_list = Fnreverse (XCDR (ranges)); |
| 404 | if (! NILP (range_list)) |
| 405 | { |
| 406 | for (; CONSP (range_list); range_list = XCDR (range_list)) |
| 407 | { |
| 408 | int start = XINT (XCAR (XCAR (range_list))); |
| 409 | int end = XINT (XCDR (XCAR (range_list))); |
| 410 | if (NSFONT_TRACE) |
| 411 | debug_print (XCAR (range_list)); |
| 412 | if (end < 0x10000) |
| 413 | [charset addCharactersInRange: |
| 414 | NSMakeRange (start, end-start)]; |
| 415 | } |
| 416 | } |
| 417 | } |
| 418 | return charset; |
| 419 | } |
| 420 | |
| 421 | |
| 422 | /* Return an array of font families containing characters for the given |
| 423 | script, for the given coverage criterion, including at least LastResort. |
| 424 | Results are cached by script for faster access. |
| 425 | If none are found, we reduce the percentage and try again, until 5%. |
| 426 | This provides a font with at least some characters if such can be found. |
| 427 | We don't use isSupersetOfSet: because (a) it doesn't work on Tiger, and |
| 428 | (b) need approximate match as fonts covering full unicode ranges are rare. */ |
| 429 | static NSSet |
| 430 | *ns_get_covering_families (NSString *script, float pct) |
| 431 | { |
| 432 | static NSMutableDictionary *scriptToFamilies = nil; |
| 433 | NSMutableSet *families; |
| 434 | |
| 435 | if (NSFONT_TRACE) |
| 436 | NSLog(@"Request covering families for script: '%@'", script); |
| 437 | |
| 438 | if (scriptToFamilies == nil) |
| 439 | scriptToFamilies = [[NSMutableDictionary alloc] init]; |
| 440 | |
| 441 | if ((families = [scriptToFamilies objectForKey: script]) == nil) |
| 442 | { |
| 443 | NSFontManager *fontMgr = [NSFontManager sharedFontManager]; |
| 444 | NSArray *allFamilies = [fontMgr availableFontFamilies]; |
| 445 | |
| 446 | if ([script length] == 0) |
| 447 | families = [NSMutableSet setWithArray: allFamilies]; |
| 448 | else |
| 449 | { |
| 450 | NSCharacterSet *charset = ns_script_to_charset (script); |
| 451 | NSString *family; |
| 452 | families = [NSMutableSet setWithCapacity: 10]; |
| 453 | while (1) |
| 454 | { |
| 455 | NSEnumerator *allFamiliesEnum = [allFamilies objectEnumerator]; |
| 456 | while (family = [allFamiliesEnum nextObject]) |
| 457 | { |
| 458 | NSCharacterSet *fset = [[fontMgr fontWithFamily: family |
| 459 | traits: 0 weight: 5 size: 12.0] coveredCharacterSet]; |
| 460 | /* Some fonts on OS X, maybe many on GNUstep, return nil. */ |
| 461 | if (fset == nil) |
| 462 | fset = [NSCharacterSet characterSetWithRange: |
| 463 | NSMakeRange (0, 127)]; |
| 464 | if (ns_charset_covers(fset, charset, pct)) |
| 465 | [families addObject: family]; |
| 466 | } |
| 467 | pct -= 0.2; |
| 468 | if ([families count] > 0 || pct < 0.05) |
| 469 | break; |
| 470 | } |
| 471 | } |
| 472 | #ifdef NS_IMPL_COCOA |
| 473 | if ([families count] == 0) |
| 474 | [families addObject: @"LastResort"]; |
| 475 | #endif |
| 476 | [scriptToFamilies setObject: families forKey: script]; |
| 477 | } |
| 478 | |
| 479 | if (NSFONT_TRACE) |
| 480 | NSLog(@" returning %d families", [families count]); |
| 481 | return families; |
| 482 | } |
| 483 | |
| 484 | |
| 485 | /* Implementation for list() and match(). List() can return nil, match() |
| 486 | must return something. Strategy is to drop family name from attribute |
| 487 | matching set for match. */ |
| 488 | static Lisp_Object |
| 489 | ns_findfonts (Lisp_Object font_spec, BOOL isMatch) |
| 490 | { |
| 491 | Lisp_Object tem, list = Qnil; |
| 492 | NSFontDescriptor *fdesc, *desc; |
| 493 | NSMutableSet *fkeys; |
| 494 | NSArray *matchingDescs; |
| 495 | NSEnumerator *dEnum; |
| 496 | NSString *family; |
| 497 | NSSet *cFamilies; |
| 498 | BOOL foundItal = NO; |
| 499 | |
| 500 | if (NSFONT_TRACE) |
| 501 | { |
| 502 | fprintf (stderr, "nsfont: %s for fontspec:\n ", |
| 503 | (isMatch ? "match" : "list")); |
| 504 | debug_print (font_spec); |
| 505 | } |
| 506 | |
| 507 | cFamilies = ns_get_covering_families (ns_get_req_script (font_spec), 0.90); |
| 508 | |
| 509 | fdesc = ns_spec_to_descriptor (font_spec); |
| 510 | fkeys = [NSMutableSet setWithArray: [[fdesc fontAttributes] allKeys]]; |
| 511 | if (isMatch) |
| 512 | [fkeys removeObject: NSFontFamilyAttribute]; |
| 513 | |
| 514 | matchingDescs = [fdesc matchingFontDescriptorsWithMandatoryKeys: fkeys]; |
| 515 | if (NSFONT_TRACE) |
| 516 | NSLog(@"Got desc %@ and found %d matching fonts from it: ", fdesc, |
| 517 | [matchingDescs count]); |
| 518 | |
| 519 | for (dEnum = [matchingDescs objectEnumerator]; desc = [dEnum nextObject]; ) |
| 520 | { |
| 521 | if (![cFamilies containsObject: |
| 522 | [desc objectForKey: NSFontFamilyAttribute]]) |
| 523 | continue; |
| 524 | tem = ns_descriptor_to_entity (desc, |
| 525 | AREF (font_spec, FONT_EXTRA_INDEX), |
| 526 | NULL); |
| 527 | if (isMatch) |
| 528 | return tem; |
| 529 | list = Fcons (tem, list); |
| 530 | if (fabs (ns_attribute_fvalue (desc, NSFontSlantTrait)) > 0.05) |
| 531 | foundItal = YES; |
| 532 | } |
| 533 | |
| 534 | /* Add synthItal member if needed. */ |
| 535 | family = [fdesc objectForKey: NSFontFamilyAttribute]; |
| 536 | if (family != nil && !foundItal && XINT (Flength (list)) > 0) |
| 537 | { |
| 538 | NSFontDescriptor *sDesc = [[[NSFontDescriptor new] |
| 539 | fontDescriptorWithSymbolicTraits: NSFontItalicTrait] |
| 540 | fontDescriptorWithFamily: family]; |
| 541 | list = Fcons (ns_descriptor_to_entity (sDesc, |
| 542 | AREF (font_spec, FONT_EXTRA_INDEX), |
| 543 | "synthItal"), list); |
| 544 | } |
| 545 | |
| 546 | /* Return something if was a match and nothing found. */ |
| 547 | if (isMatch) |
| 548 | return ns_fallback_entity (); |
| 549 | |
| 550 | if (NSFONT_TRACE) |
| 551 | fprintf (stderr, " Returning %ld entities.\n", |
| 552 | (long) XINT (Flength (list))); |
| 553 | |
| 554 | return list; |
| 555 | } |
| 556 | |
| 557 | |
| 558 | |
| 559 | /* ========================================================================== |
| 560 | |
| 561 | Font driver implementation |
| 562 | |
| 563 | ========================================================================== */ |
| 564 | |
| 565 | |
| 566 | static Lisp_Object nsfont_get_cache (FRAME_PTR frame); |
| 567 | static Lisp_Object nsfont_list (Lisp_Object frame, Lisp_Object font_spec); |
| 568 | static Lisp_Object nsfont_match (Lisp_Object frame, Lisp_Object font_spec); |
| 569 | static Lisp_Object nsfont_list_family (Lisp_Object frame); |
| 570 | static Lisp_Object nsfont_open (FRAME_PTR f, Lisp_Object font_entity, |
| 571 | int pixel_size); |
| 572 | static void nsfont_close (FRAME_PTR f, struct font *font); |
| 573 | static int nsfont_has_char (Lisp_Object entity, int c); |
| 574 | static unsigned int nsfont_encode_char (struct font *font, int c); |
| 575 | static int nsfont_text_extents (struct font *font, unsigned int *code, |
| 576 | int nglyphs, struct font_metrics *metrics); |
| 577 | static int nsfont_draw (struct glyph_string *s, int from, int to, int x, int y, |
| 578 | int with_background); |
| 579 | |
| 580 | struct font_driver nsfont_driver = |
| 581 | { |
| 582 | 0, /* Qns */ |
| 583 | 1, /* case sensitive */ |
| 584 | nsfont_get_cache, |
| 585 | nsfont_list, |
| 586 | nsfont_match, |
| 587 | nsfont_list_family, |
| 588 | NULL, /*free_entity */ |
| 589 | nsfont_open, |
| 590 | nsfont_close, |
| 591 | NULL, /* prepare_face */ |
| 592 | NULL, /* done_face */ |
| 593 | nsfont_has_char, |
| 594 | nsfont_encode_char, |
| 595 | nsfont_text_extents, |
| 596 | nsfont_draw, |
| 597 | /* excluded: get_bitmap, free_bitmap, get_outline, free_outline, |
| 598 | anchor_point, otf_capability, otf_driver, |
| 599 | start_for_frame, end_for_frame, shape */ |
| 600 | }; |
| 601 | |
| 602 | |
| 603 | /* Return a cache of font-entities on FRAME. The cache must be a |
| 604 | cons whose cdr part is the actual cache area. */ |
| 605 | static Lisp_Object |
| 606 | nsfont_get_cache (FRAME_PTR frame) |
| 607 | { |
| 608 | Display_Info *dpyinfo = FRAME_NS_DISPLAY_INFO (frame); |
| 609 | return (dpyinfo->name_list_element); |
| 610 | } |
| 611 | |
| 612 | |
| 613 | /* List fonts exactly matching with FONT_SPEC on FRAME. The value is a |
| 614 | **list** of font-entities. This and match () are sole APIs that allocate |
| 615 | font-entities. Properties to be considered (2009/05/19) are: |
| 616 | regular: foundry, family, adstyle, registry |
| 617 | extended: script, lang, otf |
| 618 | "Extended" properties are not part of the vector but get stored as |
| 619 | lisp properties under FONT_EXTRA_INDEX. |
| 620 | |
| 621 | The returned entities should have type set (to 'ns), plus the following: |
| 622 | foundry, family, adstyle, registry, |
| 623 | weight, slant, width, size (0 if scalable), |
| 624 | dpi, spacing, avgwidth (0 if scalable) */ |
| 625 | static Lisp_Object |
| 626 | nsfont_list (Lisp_Object frame, Lisp_Object font_spec) |
| 627 | { |
| 628 | return ns_findfonts (font_spec, NO); |
| 629 | } |
| 630 | |
| 631 | |
| 632 | /* Return a font entity most closely maching with FONT_SPEC on |
| 633 | FRAME. The closeness is determined by the font backend, thus |
| 634 | `face-font-selection-order' is ignored here. |
| 635 | Properties to be considered are same as for list(). */ |
| 636 | static Lisp_Object |
| 637 | nsfont_match (Lisp_Object frame, Lisp_Object font_spec) |
| 638 | { |
| 639 | return ns_findfonts(font_spec, YES); |
| 640 | } |
| 641 | |
| 642 | |
| 643 | /* List available families. The value is a list of family names |
| 644 | (symbols). */ |
| 645 | static Lisp_Object |
| 646 | nsfont_list_family (Lisp_Object frame) |
| 647 | { |
| 648 | Lisp_Object list = Qnil; |
| 649 | NSEnumerator *families = |
| 650 | [[[NSFontManager sharedFontManager] availableFontFamilies] |
| 651 | objectEnumerator]; |
| 652 | NSString *family; |
| 653 | while (family = [families nextObject]) |
| 654 | list = Fcons (intern ([family UTF8String]), list); |
| 655 | /* FIXME: escape the name? */ |
| 656 | |
| 657 | if (NSFONT_TRACE) |
| 658 | fprintf (stderr, "nsfont: list families returning %ld entries\n", |
| 659 | (long) XINT (Flength (list))); |
| 660 | |
| 661 | return list; |
| 662 | } |
| 663 | |
| 664 | |
| 665 | /* Open a font specified by FONT_ENTITY on frame F. If the font is |
| 666 | scalable, open it with PIXEL_SIZE. */ |
| 667 | static Lisp_Object |
| 668 | nsfont_open (FRAME_PTR f, Lisp_Object font_entity, int pixel_size) |
| 669 | { |
| 670 | BOOL synthItal; |
| 671 | unsigned int traits = 0; |
| 672 | struct nsfont_info *font_info; |
| 673 | struct font *font; |
| 674 | NSFontDescriptor *fontDesc = ns_spec_to_descriptor (font_entity); |
| 675 | NSFontManager *fontMgr = [NSFontManager sharedFontManager]; |
| 676 | NSString *family; |
| 677 | NSFont *nsfont, *sfont; |
| 678 | Lisp_Object tem; |
| 679 | NSRect brect; |
| 680 | Lisp_Object font_object; |
| 681 | int i; |
| 682 | int fixLeopardBug; |
| 683 | static NSMutableDictionary *fontCache = nil; |
| 684 | NSNumber *cached; |
| 685 | |
| 686 | /* 2008/03/08: The same font may end up being requested for different |
| 687 | entities, due to small differences in numeric values or other issues, |
| 688 | or for different copies of the same entity. Therefore we cache to |
| 689 | avoid creating multiple struct font objects (with metrics cache, etc.) |
| 690 | for the same NSFont object. */ |
| 691 | if (fontCache == nil) |
| 692 | fontCache = [[NSMutableDictionary alloc] init]; |
| 693 | |
| 694 | if (NSFONT_TRACE) |
| 695 | { |
| 696 | fprintf (stderr, "nsfont: open size %d of fontentity:\n ", pixel_size); |
| 697 | debug_print (font_entity); |
| 698 | } |
| 699 | |
| 700 | if (pixel_size <= 0) |
| 701 | { |
| 702 | /* try to get it out of frame params */ |
| 703 | Lisp_Object tem = get_frame_param (f, Qfontsize); |
| 704 | pixel_size = NILP (tem) ? 0 : XFASTINT (tem); |
| 705 | } |
| 706 | |
| 707 | tem = AREF (font_entity, FONT_ADSTYLE_INDEX); |
| 708 | synthItal = !NILP (tem) && !strncmp ("synthItal", SDATA (SYMBOL_NAME (tem)), |
| 709 | 9); |
| 710 | family = ns_get_family (font_entity); |
| 711 | if (family == nil) |
| 712 | family = [[NSFont userFixedPitchFontOfSize: 0] familyName]; |
| 713 | /* Should be > 0.23 as some font descriptors (e.g. Terminus) set to that |
| 714 | when setting family in ns_spec_to_descriptor(). */ |
| 715 | if (ns_attribute_fvalue (fontDesc, NSFontWeightTrait) > 0.50) |
| 716 | traits |= NSBoldFontMask; |
| 717 | if (fabs (ns_attribute_fvalue (fontDesc, NSFontSlantTrait) > 0.05)) |
| 718 | traits |= NSItalicFontMask; |
| 719 | |
| 720 | /* see http://cocoadev.com/forums/comments.php?DiscussionID=74 */ |
| 721 | fixLeopardBug = traits & NSBoldFontMask ? 10 : 5; |
| 722 | nsfont = [fontMgr fontWithFamily: family |
| 723 | traits: traits weight: fixLeopardBug |
| 724 | size: pixel_size]; |
| 725 | /* if didn't find, try synthetic italic */ |
| 726 | if (nsfont == nil && synthItal) |
| 727 | { |
| 728 | nsfont = [fontMgr fontWithFamily: family |
| 729 | traits: traits & ~NSItalicFontMask |
| 730 | weight: fixLeopardBug size: pixel_size]; |
| 731 | } |
| 732 | #ifdef NS_IMPL_COCOA |
| 733 | /* LastResort not really a family */ |
| 734 | if (nsfont == nil && [@"LastResort" isEqualToString: family]) |
| 735 | nsfont = [NSFont fontWithName: @"LastResort" size: pixel_size]; |
| 736 | #endif |
| 737 | |
| 738 | if (nsfont == nil) |
| 739 | { |
| 740 | message_with_string ("*** Warning: font in family '%s' not found", |
| 741 | build_string ([family UTF8String]), 1); |
| 742 | nsfont = [NSFont userFixedPitchFontOfSize: pixel_size]; |
| 743 | } |
| 744 | |
| 745 | if (NSFONT_TRACE) |
| 746 | NSLog (@"%@\n", nsfont); |
| 747 | |
| 748 | /* Check the cache */ |
| 749 | cached = [fontCache objectForKey: nsfont]; |
| 750 | if (cached != nil && !synthItal) |
| 751 | { |
| 752 | if (NSFONT_TRACE) |
| 753 | fprintf(stderr, "*** nsfont_open CACHE HIT!\n"); |
| 754 | /* FIXME: Cast from (unsigned long) to Lisp_Object. */ |
| 755 | XHASH (font_object) = [cached unsignedLongValue]; |
| 756 | return font_object; |
| 757 | } |
| 758 | else |
| 759 | { |
| 760 | font_object = font_make_object (VECSIZE (struct nsfont_info), |
| 761 | font_entity, pixel_size); |
| 762 | if (!synthItal) |
| 763 | [fontCache setObject: [NSNumber numberWithUnsignedLong: |
| 764 | (unsigned long) XHASH (font_object)] |
| 765 | forKey: nsfont]; |
| 766 | } |
| 767 | |
| 768 | font_info = (struct nsfont_info *) XFONT_OBJECT (font_object); |
| 769 | font = (struct font *) font_info; |
| 770 | if (!font) |
| 771 | return Qnil; /* FIXME: other terms do, but return Qnil causes segfault */ |
| 772 | |
| 773 | font_info->glyphs = (unsigned short **) |
| 774 | xmalloc (0x100 * sizeof (unsigned short *)); |
| 775 | font_info->metrics = (struct font_metrics **) |
| 776 | xmalloc (0x100 * sizeof (struct font_metrics *)); |
| 777 | if (!font_info->glyphs || !font_info->metrics) |
| 778 | return Qnil; |
| 779 | memset (font_info->glyphs, 0, 0x100 * sizeof (unsigned short *)); |
| 780 | memset (font_info->metrics, 0, 0x100 * sizeof (struct font_metrics *)); |
| 781 | |
| 782 | BLOCK_INPUT; |
| 783 | |
| 784 | /* for metrics */ |
| 785 | sfont = [nsfont screenFont]; |
| 786 | if (sfont == nil) |
| 787 | sfont = nsfont; |
| 788 | |
| 789 | /* non-metric backend font struct fields */ |
| 790 | font = (struct font *) font_info; |
| 791 | font->pixel_size = [sfont pointSize]; |
| 792 | font->driver = &nsfont_driver; |
| 793 | font->encoding_type = FONT_ENCODING_NOT_DECIDED; |
| 794 | font->encoding_charset = -1; |
| 795 | font->repertory_charset = -1; |
| 796 | font->default_ascent = 0; |
| 797 | font->vertical_centering = 0; |
| 798 | font->baseline_offset = 0; |
| 799 | font->relative_compose = 0; |
| 800 | font->font_encoder = NULL; |
| 801 | |
| 802 | font->props[FONT_FORMAT_INDEX] = Qns; |
| 803 | font->props[FONT_FILE_INDEX] = Qnil; |
| 804 | |
| 805 | { |
| 806 | double expand, hshrink; |
| 807 | float full_height, min_height, hd; |
| 808 | const char *fontName = [[nsfont fontName] UTF8String]; |
| 809 | int len = strlen (fontName); |
| 810 | |
| 811 | #ifdef NS_IMPL_GNUSTEP |
| 812 | font_info->nsfont = sfont; |
| 813 | #else |
| 814 | font_info->nsfont = nsfont; |
| 815 | #endif |
| 816 | [font_info->nsfont retain]; |
| 817 | |
| 818 | /* set up ns_font (defined in nsgui.h) */ |
| 819 | font_info->name = (char *)xmalloc (strlen (fontName)+1); |
| 820 | strcpy (font_info->name, fontName); |
| 821 | font_info->bold = [fontMgr traitsOfFont: nsfont] & NSBoldFontMask; |
| 822 | font_info->ital = |
| 823 | synthItal || ([fontMgr traitsOfFont: nsfont] & NSItalicFontMask); |
| 824 | |
| 825 | /* Metrics etc.; some fonts return an unusually large max advance, so we |
| 826 | only use it for fonts that have wide characters. */ |
| 827 | font_info->width = ([sfont numberOfGlyphs] > 2000) ? |
| 828 | [sfont maximumAdvancement].width : ns_char_width (sfont, '0'); |
| 829 | |
| 830 | brect = [sfont boundingRectForFont]; |
| 831 | full_height = brect.size.height; |
| 832 | min_height = [sfont ascender] - [sfont descender]; |
| 833 | hd = full_height - min_height; |
| 834 | |
| 835 | /* standard height, similar to Carbon. Emacs.app: was 0.5 by default. */ |
| 836 | expand = 0.0; |
| 837 | hshrink = 1.0; |
| 838 | |
| 839 | font_info->underpos = 2; /*[sfont underlinePosition] is often clipped out */ |
| 840 | font_info->underwidth = [sfont underlineThickness]; |
| 841 | font_info->size = font->pixel_size; |
| 842 | font_info->voffset = lrint (hshrink * [sfont ascender] + expand * hd / 2); |
| 843 | |
| 844 | /* max bounds */ |
| 845 | font_info->max_bounds.ascent = |
| 846 | lrint (hshrink * [sfont ascender] + expand * hd/2); |
| 847 | /* [sfont descender] is usually negative. Use floor to avoid |
| 848 | clipping descenders. */ |
| 849 | font_info->max_bounds.descent = |
| 850 | -lrint (floor(hshrink* [sfont descender] - expand*hd/2)); |
| 851 | font_info->height = |
| 852 | font_info->max_bounds.ascent + font_info->max_bounds.descent; |
| 853 | font_info->max_bounds.width = lrint (font_info->width); |
| 854 | font_info->max_bounds.lbearing = lrint (brect.origin.x); |
| 855 | font_info->max_bounds.rbearing = |
| 856 | lrint (brect.size.width - font_info->width); |
| 857 | |
| 858 | #ifdef NS_IMPL_COCOA |
| 859 | /* set up synthItal and the CG font */ |
| 860 | font_info->synthItal = synthItal; |
| 861 | { |
| 862 | ATSFontRef atsFont = ATSFontFindFromPostScriptName |
| 863 | ((CFStringRef)[nsfont fontName], kATSOptionFlagsDefault); |
| 864 | |
| 865 | if (atsFont == kATSFontRefUnspecified) |
| 866 | { |
| 867 | /* see if we can get it by dropping italic (then synthesizing) */ |
| 868 | atsFont = ATSFontFindFromPostScriptName ((CFStringRef) |
| 869 | [[fontMgr convertFont: nsfont toNotHaveTrait: NSItalicFontMask] |
| 870 | fontName], kATSOptionFlagsDefault); |
| 871 | if (atsFont != kATSFontRefUnspecified) |
| 872 | font_info->synthItal = YES; |
| 873 | else |
| 874 | { |
| 875 | /* last resort fallback */ |
| 876 | atsFont = ATSFontFindFromPostScriptName |
| 877 | ((CFStringRef)@"Monaco", kATSOptionFlagsDefault); |
| 878 | } |
| 879 | } |
| 880 | font_info->cgfont = CGFontCreateWithPlatformFont ((void*)&atsFont); |
| 881 | } |
| 882 | #endif |
| 883 | |
| 884 | /* set up metrics portion of font struct */ |
| 885 | font->ascent = lrint([sfont ascender]); |
| 886 | font->descent = -lrint(floor([sfont descender])); |
| 887 | font->min_width = ns_char_width(sfont, '|'); |
| 888 | font->space_width = lrint (ns_char_width (sfont, ' ')); |
| 889 | font->average_width = lrint (font_info->width); |
| 890 | font->max_width = lrint (font_info->max_bounds.width); |
| 891 | font->height = lrint (font_info->height); |
| 892 | font->underline_position = lrint (font_info->underpos); |
| 893 | font->underline_thickness = lrint (font_info->underwidth); |
| 894 | |
| 895 | font->props[FONT_NAME_INDEX] = Ffont_xlfd_name (font_object, Qnil); |
| 896 | font->props[FONT_FULLNAME_INDEX] = |
| 897 | make_unibyte_string (font_info->name, strlen (font_info->name)); |
| 898 | } |
| 899 | UNBLOCK_INPUT; |
| 900 | |
| 901 | return font_object; |
| 902 | } |
| 903 | |
| 904 | |
| 905 | /* Close FONT on frame F. */ |
| 906 | static void |
| 907 | nsfont_close (FRAME_PTR f, struct font *font) |
| 908 | { |
| 909 | struct nsfont_info *font_info = (struct nsfont_info *)font; |
| 910 | int i; |
| 911 | |
| 912 | /* FIXME: this occurs apparently due to same failure to detect same font |
| 913 | that causes need for cache in nsfont_open () */ |
| 914 | if (!font_info) |
| 915 | return; |
| 916 | |
| 917 | for (i =0; i<0x100; i++) |
| 918 | { |
| 919 | xfree (font_info->glyphs[i]); |
| 920 | xfree (font_info->metrics[i]); |
| 921 | } |
| 922 | [font_info->nsfont release]; |
| 923 | #ifdef NS_IMPL_COCOA |
| 924 | CGFontRelease (font_info->cgfont); |
| 925 | #endif |
| 926 | xfree (font_info->name); |
| 927 | xfree (font_info); |
| 928 | } |
| 929 | |
| 930 | |
| 931 | /* If FONT_ENTITY has a glyph for character C (Unicode code point), |
| 932 | return 1. If not, return 0. If a font must be opened to check |
| 933 | it, return -1. */ |
| 934 | static int |
| 935 | nsfont_has_char (Lisp_Object entity, int c) |
| 936 | { |
| 937 | return -1; |
| 938 | } |
| 939 | |
| 940 | |
| 941 | /* Return a glyph code of FONT for character C (Unicode code point). |
| 942 | If FONT doesn't have such a glyph, return FONT_INVALID_CODE. */ |
| 943 | static unsigned int |
| 944 | nsfont_encode_char (struct font *font, int c) |
| 945 | { |
| 946 | struct nsfont_info *font_info = (struct nsfont_info *)font; |
| 947 | unsigned char high = (c & 0xff00) >> 8, low = c & 0x00ff; |
| 948 | unsigned short g; |
| 949 | |
| 950 | if (c > 0xFFFF) |
| 951 | return FONT_INVALID_CODE; |
| 952 | |
| 953 | /* did we already cache this block? */ |
| 954 | if (!font_info->glyphs[high]) |
| 955 | ns_uni_to_glyphs (font_info, high); |
| 956 | |
| 957 | g = font_info->glyphs[high][low]; |
| 958 | return g == 0xFFFF ? FONT_INVALID_CODE : g; |
| 959 | } |
| 960 | |
| 961 | |
| 962 | /* Perform the size computation of glyphs of FONT and fill in members |
| 963 | of METRICS. The glyphs are specified by their glyph codes in |
| 964 | CODE (length NGLYPHS). */ |
| 965 | static int |
| 966 | nsfont_text_extents (struct font *font, unsigned int *code, int nglyphs, |
| 967 | struct font_metrics *metrics) |
| 968 | { |
| 969 | struct nsfont_info *font_info = (struct nsfont_info *)font; |
| 970 | struct font_metrics *pcm; |
| 971 | unsigned char high, low; |
| 972 | int totalWidth = 0; |
| 973 | int i; |
| 974 | |
| 975 | memset (metrics, 0, sizeof (struct font_metrics)); |
| 976 | |
| 977 | for (i =0; i<nglyphs; i++) |
| 978 | { |
| 979 | /* get metrics for this glyph, filling cache if need be */ |
| 980 | /* TODO: get metrics for whole string from an NSLayoutManager |
| 981 | (if not too slow) */ |
| 982 | high = (code[i] & 0xFF00) >> 8; |
| 983 | low = code[i] & 0x00FF; |
| 984 | if (!font_info->metrics[high]) |
| 985 | ns_glyph_metrics (font_info, high); |
| 986 | pcm = &(font_info->metrics[high][low]); |
| 987 | |
| 988 | if (metrics->lbearing > totalWidth + pcm->lbearing) |
| 989 | metrics->lbearing = totalWidth + pcm->lbearing; |
| 990 | if (metrics->rbearing < totalWidth + pcm->rbearing) |
| 991 | metrics->rbearing = totalWidth + pcm->rbearing; |
| 992 | if (metrics->ascent < pcm->ascent) |
| 993 | metrics->ascent = pcm->ascent; |
| 994 | if (metrics->descent < pcm->descent) |
| 995 | metrics->descent = pcm->descent; |
| 996 | |
| 997 | totalWidth += pcm->width; |
| 998 | } |
| 999 | |
| 1000 | metrics->width = totalWidth; |
| 1001 | |
| 1002 | return totalWidth; /* not specified in doc, but xfont.c does it */ |
| 1003 | } |
| 1004 | |
| 1005 | |
| 1006 | /* Draw glyphs between FROM and TO of S->char2b at (X Y) pixel |
| 1007 | position of frame F with S->FACE and S->GC. If WITH_BACKGROUND |
| 1008 | is nonzero, fill the background in advance. It is assured that |
| 1009 | WITH_BACKGROUND is zero when (FROM > 0 || TO < S->nchars). */ |
| 1010 | static int |
| 1011 | nsfont_draw (struct glyph_string *s, int from, int to, int x, int y, |
| 1012 | int with_background) |
| 1013 | /* NOTE: focus and clip must be set |
| 1014 | also, currently assumed (true in nsterm.m call) from ==0, to ==nchars */ |
| 1015 | { |
| 1016 | static char cbuf[1024]; |
| 1017 | char *c = cbuf; |
| 1018 | #ifdef NS_IMPL_GNUSTEP |
| 1019 | static float advances[1024]; |
| 1020 | float *adv = advances; |
| 1021 | #else |
| 1022 | static CGSize advances[1024]; |
| 1023 | CGSize *adv = advances; |
| 1024 | #endif |
| 1025 | struct face *face; |
| 1026 | NSRect r; |
| 1027 | struct nsfont_info *font = ns_tmp_font; |
| 1028 | NSColor *col, *bgCol; |
| 1029 | unsigned short *t = s->char2b; |
| 1030 | int i, len; |
| 1031 | char isComposite = s->first_glyph->type == COMPOSITE_GLYPH; |
| 1032 | int end = isComposite ? s->cmp_to : s->nchars; |
| 1033 | |
| 1034 | /* Select face based on input flags */ |
| 1035 | switch (ns_tmp_flags) |
| 1036 | { |
| 1037 | case NS_DUMPGLYPH_CURSOR: |
| 1038 | face = s->face; |
| 1039 | break; |
| 1040 | case NS_DUMPGLYPH_MOUSEFACE: |
| 1041 | face = FACE_FROM_ID (s->f, |
| 1042 | FRAME_NS_DISPLAY_INFO (s->f)->mouse_face_face_id); |
| 1043 | if (!face) |
| 1044 | face = FACE_FROM_ID (s->f, MOUSE_FACE_ID); |
| 1045 | break; |
| 1046 | default: |
| 1047 | face = s->face; |
| 1048 | } |
| 1049 | |
| 1050 | r.origin.x = s->x; |
| 1051 | if (s->face->box != FACE_NO_BOX && s->first_glyph->left_box_line_p) |
| 1052 | r.origin.x += abs (s->face->box_line_width); |
| 1053 | |
| 1054 | r.origin.y = s->y; |
| 1055 | r.size.height = FONT_HEIGHT (font); |
| 1056 | |
| 1057 | /* Convert UTF-16 (?) to UTF-8 and determine advances. Note if we just ask |
| 1058 | NS to render the string, it will come out differently from the individual |
| 1059 | character widths added up because of layout processing. */ |
| 1060 | { |
| 1061 | XCharStruct *cs; |
| 1062 | int cwidth, twidth = 0; |
| 1063 | int hi, lo; |
| 1064 | /* FIXME: composition: no vertical displacement is considered. */ |
| 1065 | t += s->cmp_from; /* advance into composition */ |
| 1066 | for (i = s->cmp_from; i < end; i++, t++) |
| 1067 | { |
| 1068 | hi = (*t & 0xFF00) >> 8; |
| 1069 | lo = *t & 0x00FF; |
| 1070 | if (isComposite) |
| 1071 | { |
| 1072 | if (!s->first_glyph->u.cmp.automatic) |
| 1073 | cwidth = s->cmp->offsets[i * 2] /* (H offset) */ - twidth; |
| 1074 | else |
| 1075 | { |
| 1076 | Lisp_Object gstring = composition_gstring_from_id (s->cmp_id); |
| 1077 | Lisp_Object glyph = LGSTRING_GLYPH (gstring, i); |
| 1078 | if (NILP (LGLYPH_ADJUSTMENT (glyph))) |
| 1079 | cwidth = LGLYPH_WIDTH (glyph); |
| 1080 | else |
| 1081 | { |
| 1082 | cwidth = LGLYPH_WADJUST (glyph); |
| 1083 | #ifdef NS_IMPL_GNUSTEP |
| 1084 | *(adv-1) += LGLYPH_XOFF (glyph); |
| 1085 | #else |
| 1086 | (*(adv-1)).width += LGLYPH_XOFF (glyph); |
| 1087 | #endif |
| 1088 | } |
| 1089 | } |
| 1090 | } |
| 1091 | else |
| 1092 | { |
| 1093 | if (!font->metrics[hi]) /* FIXME: why/how can we need this now? */ |
| 1094 | ns_glyph_metrics (font, hi); |
| 1095 | cwidth = font->metrics[hi][lo].width; |
| 1096 | } |
| 1097 | twidth += cwidth; |
| 1098 | #ifdef NS_IMPL_GNUSTEP |
| 1099 | *adv++ = cwidth; |
| 1100 | CHAR_STRING_ADVANCE (*t, c); /* this converts the char to UTF-8 */ |
| 1101 | #else |
| 1102 | (*adv++).width = cwidth; |
| 1103 | #endif |
| 1104 | } |
| 1105 | len = adv - advances; |
| 1106 | r.size.width = twidth; |
| 1107 | *c = 0; |
| 1108 | } |
| 1109 | |
| 1110 | /* fill background if requested */ |
| 1111 | if (with_background && !isComposite) |
| 1112 | { |
| 1113 | NSRect br = r; |
| 1114 | int fibw = FRAME_INTERNAL_BORDER_WIDTH (s->f); |
| 1115 | int mbox_line_width = max (s->face->box_line_width, 0); |
| 1116 | |
| 1117 | if (s->row->full_width_p) |
| 1118 | { |
| 1119 | if (br.origin.x <= fibw + 1 + mbox_line_width) |
| 1120 | { |
| 1121 | br.size.width += br.origin.x - mbox_line_width; |
| 1122 | br.origin.x = mbox_line_width; |
| 1123 | } |
| 1124 | if (FRAME_PIXEL_WIDTH (s->f) - (br.origin.x + br.size.width) |
| 1125 | <= fibw+1) |
| 1126 | br.size.width += fibw; |
| 1127 | } |
| 1128 | if (s->face->box == FACE_NO_BOX) |
| 1129 | { |
| 1130 | /* expand unboxed top row over internal border */ |
| 1131 | if (br.origin.y <= fibw + 1 + mbox_line_width) |
| 1132 | { |
| 1133 | br.size.height += br.origin.y; |
| 1134 | br.origin.y = 0; |
| 1135 | } |
| 1136 | } |
| 1137 | else |
| 1138 | { |
| 1139 | int correction = abs (s->face->box_line_width)+1; |
| 1140 | br.origin.y += correction; |
| 1141 | br.size.height -= 2*correction; |
| 1142 | br.origin.x += correction; |
| 1143 | br.size.width -= 2*correction; |
| 1144 | } |
| 1145 | |
| 1146 | if (!s->face->stipple) |
| 1147 | [(NS_FACE_BACKGROUND (face) != 0 |
| 1148 | ? ns_lookup_indexed_color (NS_FACE_BACKGROUND (face), s->f) |
| 1149 | : FRAME_BACKGROUND_COLOR (s->f)) set]; |
| 1150 | else |
| 1151 | { |
| 1152 | struct ns_display_info *dpyinfo = FRAME_NS_DISPLAY_INFO (s->f); |
| 1153 | [[dpyinfo->bitmaps[face->stipple-1].img stippleMask] set]; |
| 1154 | } |
| 1155 | NSRectFill (br); |
| 1156 | } |
| 1157 | |
| 1158 | |
| 1159 | /* set up for character rendering */ |
| 1160 | r.origin.y += font->voffset + (s->height - font->height)/2; |
| 1161 | |
| 1162 | col = (NS_FACE_FOREGROUND (face) != 0 |
| 1163 | ? ns_lookup_indexed_color (NS_FACE_FOREGROUND (face), s->f) |
| 1164 | : FRAME_FOREGROUND_COLOR (s->f)); |
| 1165 | /* FIXME: find another way to pass this */ |
| 1166 | bgCol = (ns_tmp_flags != NS_DUMPGLYPH_FOREGROUND ? nil |
| 1167 | : (NS_FACE_BACKGROUND (face) != 0 |
| 1168 | ? ns_lookup_indexed_color (NS_FACE_BACKGROUND (face), s->f) |
| 1169 | : FRAME_BACKGROUND_COLOR (s->f))); |
| 1170 | |
| 1171 | /* render under GNUstep using DPS */ |
| 1172 | #ifdef NS_IMPL_GNUSTEP |
| 1173 | { |
| 1174 | NSGraphicsContext *context = GSCurrentContext (); |
| 1175 | |
| 1176 | DPSgsave (context); |
| 1177 | [font->nsfont set]; |
| 1178 | |
| 1179 | /* do erase if "foreground" mode */ |
| 1180 | if (bgCol != nil) |
| 1181 | { |
| 1182 | [bgCol set]; |
| 1183 | DPSmoveto (context, r.origin.x, r.origin.y); |
| 1184 | /*[context GSSetTextDrawingMode: GSTextFillStroke]; /// not implemented yet */ |
| 1185 | DPSxshow (context, cbuf, advances, len); |
| 1186 | DPSstroke (context); |
| 1187 | [col set]; |
| 1188 | /*[context GSSetTextDrawingMode: GSTextFill]; /// not implemented yet */ |
| 1189 | } |
| 1190 | |
| 1191 | /* do underline */ |
| 1192 | if (face->underline_p) |
| 1193 | { |
| 1194 | if (face->underline_color != 0) |
| 1195 | [ns_lookup_indexed_color (face->underline_color, s->f) set]; |
| 1196 | else |
| 1197 | [col set]; |
| 1198 | DPSmoveto (context, r.origin.x, r.origin.y + font->underpos); |
| 1199 | DPSlineto (context, r.origin.x+r.size.width, r.origin.y+font->underpos); |
| 1200 | if (face->underline_color != 0) |
| 1201 | [col set]; |
| 1202 | } |
| 1203 | else |
| 1204 | [col set]; |
| 1205 | |
| 1206 | /* draw with DPSxshow () */ |
| 1207 | DPSmoveto (context, r.origin.x, r.origin.y); |
| 1208 | DPSxshow (context, cbuf, advances, len); |
| 1209 | DPSstroke (context); |
| 1210 | |
| 1211 | DPSgrestore (context); |
| 1212 | return to-from; |
| 1213 | } |
| 1214 | |
| 1215 | #else /* NS_IMPL_COCOA */ |
| 1216 | { |
| 1217 | CGContextRef gcontext = |
| 1218 | [[NSGraphicsContext currentContext] graphicsPort]; |
| 1219 | static CGAffineTransform fliptf; |
| 1220 | static BOOL firstTime = YES; |
| 1221 | |
| 1222 | if (firstTime) |
| 1223 | { |
| 1224 | firstTime = NO; |
| 1225 | fliptf = CGAffineTransformMakeScale (1.0, -1.0); |
| 1226 | } |
| 1227 | |
| 1228 | CGContextSaveGState (gcontext); |
| 1229 | |
| 1230 | fliptf.c = font->synthItal ? Fix2X (kATSItalicQDSkew) : 0.0; |
| 1231 | |
| 1232 | CGContextSetFont (gcontext, font->cgfont); |
| 1233 | CGContextSetFontSize (gcontext, font->size); |
| 1234 | if (NILP (ns_antialias_text) || font->size <= ns_antialias_threshold) |
| 1235 | CGContextSetShouldAntialias (gcontext, 0); |
| 1236 | else |
| 1237 | CGContextSetShouldAntialias (gcontext, 1); |
| 1238 | |
| 1239 | CGContextSetTextMatrix (gcontext, fliptf); |
| 1240 | |
| 1241 | if (bgCol != nil) |
| 1242 | { |
| 1243 | /* foreground drawing; erase first to avoid overstrike */ |
| 1244 | [bgCol set]; |
| 1245 | CGContextSetTextDrawingMode (gcontext, kCGTextFillStroke); |
| 1246 | CGContextSetTextPosition (gcontext, r.origin.x, r.origin.y); |
| 1247 | CGContextShowGlyphsWithAdvances (gcontext, s->char2b, advances, len); |
| 1248 | CGContextSetTextDrawingMode (gcontext, kCGTextFill); |
| 1249 | } |
| 1250 | |
| 1251 | if (face->underline_p) |
| 1252 | { |
| 1253 | if (face->underline_color != 0) |
| 1254 | [ns_lookup_indexed_color (face->underline_color, s->f) set]; |
| 1255 | else |
| 1256 | [col set]; |
| 1257 | CGContextBeginPath (gcontext); |
| 1258 | CGContextMoveToPoint (gcontext, |
| 1259 | r.origin.x, r.origin.y + font->underpos); |
| 1260 | CGContextAddLineToPoint (gcontext, r.origin.x + r.size.width, |
| 1261 | r.origin.y + font->underpos); |
| 1262 | CGContextStrokePath (gcontext); |
| 1263 | if (face->underline_color != 0) |
| 1264 | [col set]; |
| 1265 | } |
| 1266 | else |
| 1267 | [col set]; |
| 1268 | |
| 1269 | CGContextSetTextPosition (gcontext, r.origin.x, r.origin.y); |
| 1270 | CGContextShowGlyphsWithAdvances (gcontext, s->char2b + s->cmp_from, |
| 1271 | advances, len); |
| 1272 | |
| 1273 | if (face->overstrike) |
| 1274 | { |
| 1275 | CGContextSetTextPosition (gcontext, r.origin.x+0.5, r.origin.y); |
| 1276 | CGContextShowGlyphsWithAdvances (gcontext, s->char2b + s->cmp_from, |
| 1277 | advances, len); |
| 1278 | } |
| 1279 | |
| 1280 | CGContextRestoreGState (gcontext); |
| 1281 | return; |
| 1282 | } |
| 1283 | #endif /* NS_IMPL_COCOA */ |
| 1284 | |
| 1285 | } |
| 1286 | |
| 1287 | |
| 1288 | |
| 1289 | /* ========================================================================== |
| 1290 | |
| 1291 | Font glyph and metrics caching functions |
| 1292 | |
| 1293 | ========================================================================== */ |
| 1294 | |
| 1295 | /* Find and cache corresponding glyph codes for unicode values in given |
| 1296 | hi-byte block of 256. */ |
| 1297 | static void |
| 1298 | ns_uni_to_glyphs (struct nsfont_info *font_info, unsigned char block) |
| 1299 | { |
| 1300 | #ifdef NS_IMPL_COCOA |
| 1301 | static EmacsGlyphStorage *glyphStorage; |
| 1302 | static char firstTime = 1; |
| 1303 | #endif |
| 1304 | unichar *unichars = xmalloc (0x101 * sizeof (unichar)); |
| 1305 | unsigned int i, g, idx; |
| 1306 | unsigned short *glyphs; |
| 1307 | |
| 1308 | if (NSFONT_TRACE) |
| 1309 | fprintf (stderr, "%p\tFinding glyphs for glyphs in block %d\n", |
| 1310 | font_info, block); |
| 1311 | |
| 1312 | BLOCK_INPUT; |
| 1313 | |
| 1314 | #ifdef NS_IMPL_COCOA |
| 1315 | if (firstTime) |
| 1316 | { |
| 1317 | firstTime = 0; |
| 1318 | glyphStorage = [[EmacsGlyphStorage alloc] initWithCapacity: 0x100]; |
| 1319 | } |
| 1320 | #endif |
| 1321 | |
| 1322 | font_info->glyphs[block] = xmalloc (0x100 * sizeof (unsigned short)); |
| 1323 | if (!unichars || !(font_info->glyphs[block])) |
| 1324 | abort (); |
| 1325 | |
| 1326 | /* create a string containing all unicode characters in this block */ |
| 1327 | for (idx = block<<8, i =0; i<0x100; idx++, i++) |
| 1328 | if (idx < 0xD800 || idx > 0xDFFF) |
| 1329 | unichars[i] = idx; |
| 1330 | else |
| 1331 | unichars[i] = 0xFEFF; |
| 1332 | unichars[0x100] = 0; |
| 1333 | |
| 1334 | { |
| 1335 | #ifdef NS_IMPL_COCOA |
| 1336 | NSString *allChars = [[NSString alloc] |
| 1337 | initWithCharactersNoCopy: unichars |
| 1338 | length: 0x100 |
| 1339 | freeWhenDone: NO]; |
| 1340 | NSGlyphGenerator *glyphGenerator = [NSGlyphGenerator sharedGlyphGenerator]; |
| 1341 | /*NSCharacterSet *coveredChars = [nsfont coveredCharacterSet]; */ |
| 1342 | unsigned int numGlyphs = [font_info->nsfont numberOfGlyphs]; |
| 1343 | NSUInteger gInd =0, cInd =0; |
| 1344 | |
| 1345 | [glyphStorage setString: allChars font: font_info->nsfont]; |
| 1346 | [glyphGenerator generateGlyphsForGlyphStorage: glyphStorage |
| 1347 | desiredNumberOfCharacters: glyphStorage->maxChar |
| 1348 | glyphIndex: &gInd characterIndex: &cInd]; |
| 1349 | #endif |
| 1350 | glyphs = font_info->glyphs[block]; |
| 1351 | for (i =0; i<0x100; i++, glyphs++) |
| 1352 | { |
| 1353 | #ifdef NS_IMPL_GNUSTEP |
| 1354 | g = unichars[i]; |
| 1355 | #else |
| 1356 | g = glyphStorage->cglyphs[i]; |
| 1357 | /* TODO: is this a good check? maybe need to use coveredChars.. */ |
| 1358 | if (g > numGlyphs) |
| 1359 | g = 0xFFFF; /* hopefully unused... */ |
| 1360 | #endif |
| 1361 | *glyphs = g; |
| 1362 | } |
| 1363 | |
| 1364 | #ifdef NS_IMPL_COCOA |
| 1365 | [allChars release]; |
| 1366 | #endif |
| 1367 | } |
| 1368 | |
| 1369 | UNBLOCK_INPUT; |
| 1370 | xfree (unichars); |
| 1371 | } |
| 1372 | |
| 1373 | |
| 1374 | /* Determine and cache metrics for corresponding glyph codes in given |
| 1375 | hi-byte block of 256. */ |
| 1376 | static void |
| 1377 | ns_glyph_metrics (struct nsfont_info *font_info, unsigned char block) |
| 1378 | { |
| 1379 | unsigned int i, g; |
| 1380 | unsigned int numGlyphs = [font_info->nsfont numberOfGlyphs]; |
| 1381 | NSFont *sfont; |
| 1382 | struct font_metrics *metrics; |
| 1383 | |
| 1384 | if (NSFONT_TRACE) |
| 1385 | fprintf (stderr, "%p\tComputing metrics for glyphs in block %d\n", |
| 1386 | font_info, block); |
| 1387 | |
| 1388 | #ifdef NS_IMPL_GNUSTEP |
| 1389 | /* not implemented yet (as of startup 0.18), so punt */ |
| 1390 | if (numGlyphs == 0) |
| 1391 | numGlyphs = 0x10000; |
| 1392 | #endif |
| 1393 | |
| 1394 | BLOCK_INPUT; |
| 1395 | sfont = [font_info->nsfont screenFont]; |
| 1396 | |
| 1397 | font_info->metrics[block] = xmalloc (0x100 * sizeof (struct font_metrics)); |
| 1398 | memset (font_info->metrics[block], 0, 0x100 * sizeof (struct font_metrics)); |
| 1399 | if (!(font_info->metrics[block])) |
| 1400 | abort (); |
| 1401 | |
| 1402 | metrics = font_info->metrics[block]; |
| 1403 | for (g = block<<8, i =0; i<0x100 && g < numGlyphs; g++, i++, metrics++) |
| 1404 | { |
| 1405 | float w, lb, rb; |
| 1406 | NSRect r = [sfont boundingRectForGlyph: g]; |
| 1407 | |
| 1408 | w = max ([sfont advancementForGlyph: g].width, 2.0); |
| 1409 | metrics->width = lrint (w); |
| 1410 | |
| 1411 | lb = r.origin.x; |
| 1412 | rb = r.size.width - w; |
| 1413 | if (lb < 0) |
| 1414 | metrics->lbearing = round (lb); |
| 1415 | if (font_info->ital) |
| 1416 | rb += 0.22 * font_info->height; |
| 1417 | metrics->rbearing = lrint (w + rb); |
| 1418 | |
| 1419 | metrics->descent = r.origin.y < 0 ? -r.origin.y : 0; |
| 1420 | /*lrint (hshrink * [sfont ascender] + expand * hd/2); */ |
| 1421 | metrics->ascent = r.size.height - metrics->descent; |
| 1422 | /*-lrint (hshrink* [sfont descender] - expand * hd/2); */ |
| 1423 | } |
| 1424 | UNBLOCK_INPUT; |
| 1425 | } |
| 1426 | |
| 1427 | |
| 1428 | #ifdef NS_IMPL_COCOA |
| 1429 | /* helper for font glyph setup */ |
| 1430 | @implementation EmacsGlyphStorage |
| 1431 | |
| 1432 | - init |
| 1433 | { |
| 1434 | return [self initWithCapacity: 1024]; |
| 1435 | } |
| 1436 | |
| 1437 | - initWithCapacity: (unsigned long) c |
| 1438 | { |
| 1439 | self = [super init]; |
| 1440 | maxChar = 0; |
| 1441 | maxGlyph = 0; |
| 1442 | dict = [NSMutableDictionary new]; |
| 1443 | cglyphs = (CGGlyph *)xmalloc (c * sizeof (CGGlyph)); |
| 1444 | return self; |
| 1445 | } |
| 1446 | |
| 1447 | - (void) dealloc |
| 1448 | { |
| 1449 | if (attrStr != nil) |
| 1450 | [attrStr release]; |
| 1451 | [dict release]; |
| 1452 | xfree (cglyphs); |
| 1453 | [super dealloc]; |
| 1454 | } |
| 1455 | |
| 1456 | - (void) setString: (NSString *)str font: (NSFont *)font |
| 1457 | { |
| 1458 | [dict setObject: font forKey: NSFontAttributeName]; |
| 1459 | attrStr = [[NSAttributedString alloc] initWithString: str attributes: dict]; |
| 1460 | maxChar = [str length]; |
| 1461 | maxGlyph = 0; |
| 1462 | } |
| 1463 | |
| 1464 | /* NSGlyphStorage protocol */ |
| 1465 | - (NSUInteger)layoutOptions |
| 1466 | { |
| 1467 | return 0; |
| 1468 | } |
| 1469 | |
| 1470 | - (NSAttributedString *)attributedString |
| 1471 | { |
| 1472 | return attrStr; |
| 1473 | } |
| 1474 | |
| 1475 | - (void)insertGlyphs: (const NSGlyph *)glyphs length: (NSUInteger)length |
| 1476 | forStartingGlyphAtIndex: (NSUInteger)glyphIndex |
| 1477 | characterIndex: (NSUInteger)charIndex |
| 1478 | { |
| 1479 | len = glyphIndex+length; |
| 1480 | for (i =glyphIndex; i<len; i++) |
| 1481 | cglyphs[i] = glyphs[i-glyphIndex]; |
| 1482 | if (len > maxGlyph) |
| 1483 | maxGlyph = len; |
| 1484 | } |
| 1485 | |
| 1486 | - (void)setIntAttribute: (NSInteger)attributeTag value: (NSInteger)val |
| 1487 | forGlyphAtIndex: (NSUInteger)glyphIndex |
| 1488 | { |
| 1489 | return; |
| 1490 | } |
| 1491 | |
| 1492 | @end |
| 1493 | #endif /* NS_IMPL_COCOA */ |
| 1494 | |
| 1495 | |
| 1496 | /* Debugging */ |
| 1497 | void |
| 1498 | ns_dump_glyphstring (struct glyph_string *s) |
| 1499 | { |
| 1500 | int i; |
| 1501 | |
| 1502 | fprintf (stderr, "Glyph string len = %d at (%d, %d) overhang (%d, %d)," |
| 1503 | "overlap = %d, bg_filled = %d:", |
| 1504 | s->nchars, s->x, s->y, s->left_overhang, s->right_overhang, |
| 1505 | s->row->overlapping_p, s->background_filled_p); |
| 1506 | for (i =0; i<s->nchars; i++) |
| 1507 | fprintf (stderr, "%c", s->first_glyph[i].u.ch); |
| 1508 | fprintf (stderr, "\n"); |
| 1509 | } |
| 1510 | |
| 1511 | |
| 1512 | void |
| 1513 | syms_of_nsfont () |
| 1514 | { |
| 1515 | nsfont_driver.type = Qns; |
| 1516 | register_font_driver (&nsfont_driver, NULL); |
| 1517 | DEFSYM (Qapple, "apple"); |
| 1518 | DEFSYM (Qroman, "roman"); |
| 1519 | DEFSYM (Qmedium, "medium"); |
| 1520 | DEFVAR_LISP ("ns-reg-to-script", &Vns_reg_to_script, |
| 1521 | doc: /* Internal use: maps font registry to unicode script. */); |
| 1522 | } |
| 1523 | |
| 1524 | // arch-tag: d6c3c6f0-62de-4978-8b1e-b7966fe02cae |