Commit | Line | Data |
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f7a84cb4 | 1 | /* Font backend for the Microsoft W32 API. |
7e14d905 | 2 | Copyright (C) 2007, 2008 Free Software Foundation, Inc. |
f7a84cb4 JR |
3 | |
4 | This file is part of GNU Emacs. | |
5 | ||
6 | GNU Emacs is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
7e14d905 | 8 | the Free Software Foundation; either version 3, or (at your option) |
f7a84cb4 JR |
9 | any later version. |
10 | ||
11 | GNU Emacs is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Emacs; see the file COPYING. If not, write to | |
18 | the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | |
19 | Boston, MA 02110-1301, USA. */ | |
20 | ||
c6900278 JR |
21 | #ifdef USE_FONT_BACKEND |
22 | ||
f7a84cb4 JR |
23 | #include <config.h> |
24 | #include <windows.h> | |
09fe06b7 | 25 | #include <math.h> |
f7a84cb4 JR |
26 | |
27 | #include "lisp.h" | |
28 | #include "w32term.h" | |
29 | #include "frame.h" | |
30 | #include "dispextern.h" | |
31 | #include "character.h" | |
32 | #include "charset.h" | |
33 | #include "fontset.h" | |
34 | #include "font.h" | |
46fd1ded | 35 | #include "w32font.h" |
f7a84cb4 | 36 | |
91583281 JR |
37 | /* Cleartype available on Windows XP, cleartype_natural from XP SP1. |
38 | The latter does not try to fit cleartype smoothed fonts into the | |
39 | same bounding box as the non-antialiased version of the font. | |
40 | */ | |
41 | #ifndef CLEARTYPE_QUALITY | |
42 | #define CLEARTYPE_QUALITY 5 | |
43 | #endif | |
44 | #ifndef CLEARTYPE_NATURAL_QUALITY | |
45 | #define CLEARTYPE_NATURAL_QUALITY 6 | |
46 | #endif | |
47 | ||
f7a84cb4 JR |
48 | extern struct font_driver w32font_driver; |
49 | ||
91583281 | 50 | Lisp_Object Qgdi; |
34fd2d28 JR |
51 | Lisp_Object Quniscribe; |
52 | static Lisp_Object QCformat; | |
9e1a2995 JR |
53 | static Lisp_Object Qmonospace, Qsansserif, Qmono, Qsans, Qsans_serif; |
54 | static Lisp_Object Qserif, Qscript, Qdecorative; | |
55 | static Lisp_Object Qraster, Qoutline, Qunknown; | |
d205d43b | 56 | |
91583281 JR |
57 | /* antialiasing */ |
58 | extern Lisp_Object QCantialias; /* defined in font.c */ | |
59 | extern Lisp_Object Qnone; /* reuse from w32fns.c */ | |
60 | static Lisp_Object Qstandard, Qsubpixel, Qnatural; | |
61 | ||
d205d43b JR |
62 | /* scripts */ |
63 | static Lisp_Object Qlatin, Qgreek, Qcoptic, Qcyrillic, Qarmenian, Qhebrew; | |
64 | static Lisp_Object Qarabic, Qsyriac, Qnko, Qthaana, Qdevanagari, Qbengali; | |
65 | static Lisp_Object Qgurmukhi, Qgujarati, Qoriya, Qtamil, Qtelugu; | |
66 | static Lisp_Object Qkannada, Qmalayalam, Qsinhala, Qthai, Qlao; | |
67 | static Lisp_Object Qtibetan, Qmyanmar, Qgeorgian, Qhangul, Qethiopic; | |
68 | static Lisp_Object Qcherokee, Qcanadian_aboriginal, Qogham, Qrunic; | |
69 | static Lisp_Object Qkhmer, Qmongolian, Qsymbol, Qbraille, Qhan; | |
70 | static Lisp_Object Qideographic_description, Qcjk_misc, Qkana, Qbopomofo; | |
71 | static Lisp_Object Qkanbun, Qyi, Qbyzantine_musical_symbol; | |
72 | static Lisp_Object Qmusical_symbol, Qmathematical; | |
73 | ||
74 | /* Font spacing symbols - defined in font.c. */ | |
75 | extern Lisp_Object Qc, Qp, Qm; | |
f7a84cb4 JR |
76 | |
77 | static void fill_in_logfont P_ ((FRAME_PTR f, LOGFONT *logfont, | |
78 | Lisp_Object font_spec)); | |
79 | ||
91583281 JR |
80 | static BYTE w32_antialias_type P_ ((Lisp_Object type)); |
81 | static Lisp_Object lispy_antialias_type P_ ((BYTE type)); | |
82 | ||
d205d43b | 83 | static Lisp_Object font_supported_scripts P_ ((FONTSIGNATURE * sig)); |
67997c79 JR |
84 | static int w32font_full_name P_ ((LOGFONT * font, Lisp_Object font_obj, |
85 | int pixel_size, char *name, int nbytes)); | |
54efdcd1 | 86 | static void recompute_cached_metrics P_ ((HDC dc, struct w32font_info * font)); |
f7a84cb4 | 87 | |
c960bff8 | 88 | static Lisp_Object w32_registry P_ ((LONG w32_charset, DWORD font_type)); |
f7a84cb4 JR |
89 | |
90 | /* EnumFontFamiliesEx callbacks. */ | |
91 | static int CALLBACK add_font_entity_to_list P_ ((ENUMLOGFONTEX *, | |
92 | NEWTEXTMETRICEX *, | |
93 | DWORD, LPARAM)); | |
94 | static int CALLBACK add_one_font_entity_to_list P_ ((ENUMLOGFONTEX *, | |
95 | NEWTEXTMETRICEX *, | |
96 | DWORD, LPARAM)); | |
97 | static int CALLBACK add_font_name_to_list P_ ((ENUMLOGFONTEX *, | |
98 | NEWTEXTMETRICEX *, | |
99 | DWORD, LPARAM)); | |
100 | ||
d205d43b JR |
101 | /* struct passed in as LPARAM arg to EnumFontFamiliesEx, for keeping track |
102 | of what we really want. */ | |
103 | struct font_callback_data | |
104 | { | |
105 | /* The logfont we are matching against. EnumFontFamiliesEx only matches | |
106 | face name and charset, so we need to manually match everything else | |
107 | in the callback function. */ | |
108 | LOGFONT pattern; | |
109 | /* The original font spec or entity. */ | |
110 | Lisp_Object orig_font_spec; | |
111 | /* The frame the font is being loaded on. */ | |
112 | Lisp_Object frame; | |
113 | /* The list to add matches to. */ | |
114 | Lisp_Object list; | |
46fd1ded JR |
115 | /* Whether to match only opentype fonts. */ |
116 | int opentype_only; | |
d205d43b JR |
117 | }; |
118 | ||
119 | /* Handles the problem that EnumFontFamiliesEx will not return all | |
120 | style variations if the font name is not specified. */ | |
a74ddbda | 121 | static void list_all_matching_fonts P_ ((struct font_callback_data *match)); |
d205d43b | 122 | |
34fd2d28 JR |
123 | /* From old font code in w32fns.c */ |
124 | char * w32_to_x_charset P_ ((int charset, char * matching)); | |
d205d43b | 125 | |
f7a84cb4 JR |
126 | |
127 | static int | |
128 | memq_no_quit (elt, list) | |
129 | Lisp_Object elt, list; | |
130 | { | |
131 | while (CONSP (list) && ! EQ (XCAR (list), elt)) | |
132 | list = XCDR (list); | |
133 | return (CONSP (list)); | |
134 | } | |
135 | ||
136 | /* w32 implementation of get_cache for font backend. | |
137 | Return a cache of font-entities on FRAME. The cache must be a | |
138 | cons whose cdr part is the actual cache area. */ | |
46fd1ded | 139 | Lisp_Object |
a4c71909 KH |
140 | w32font_get_cache (f) |
141 | FRAME_PTR f; | |
f7a84cb4 | 142 | { |
a4c71909 | 143 | struct w32_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); |
f7a84cb4 JR |
144 | |
145 | return (dpyinfo->name_list_element); | |
146 | } | |
147 | ||
148 | /* w32 implementation of list for font backend. | |
149 | List fonts exactly matching with FONT_SPEC on FRAME. The value | |
150 | is a vector of font-entities. This is the sole API that | |
151 | allocates font-entities. */ | |
20399669 JR |
152 | static Lisp_Object |
153 | w32font_list (frame, font_spec) | |
154 | Lisp_Object frame, font_spec; | |
f7a84cb4 | 155 | { |
46fd1ded | 156 | return w32font_list_internal (frame, font_spec, 0); |
f7a84cb4 JR |
157 | } |
158 | ||
159 | /* w32 implementation of match for font backend. | |
160 | Return a font entity most closely matching with FONT_SPEC on | |
161 | FRAME. The closeness is detemined by the font backend, thus | |
162 | `face-font-selection-order' is ignored here. */ | |
20399669 JR |
163 | static Lisp_Object |
164 | w32font_match (frame, font_spec) | |
165 | Lisp_Object frame, font_spec; | |
f7a84cb4 | 166 | { |
46fd1ded | 167 | return w32font_match_internal (frame, font_spec, 0); |
f7a84cb4 JR |
168 | } |
169 | ||
f7a84cb4 JR |
170 | /* w32 implementation of list_family for font backend. |
171 | List available families. The value is a list of family names | |
172 | (symbols). */ | |
20399669 JR |
173 | static Lisp_Object |
174 | w32font_list_family (frame) | |
175 | Lisp_Object frame; | |
f7a84cb4 JR |
176 | { |
177 | Lisp_Object list = Qnil; | |
178 | LOGFONT font_match_pattern; | |
179 | HDC dc; | |
180 | FRAME_PTR f = XFRAME (frame); | |
181 | ||
182 | bzero (&font_match_pattern, sizeof (font_match_pattern)); | |
183 | ||
184 | dc = get_frame_dc (f); | |
185 | ||
186 | EnumFontFamiliesEx (dc, &font_match_pattern, | |
187 | (FONTENUMPROC) add_font_name_to_list, | |
188 | (LPARAM) &list, 0); | |
189 | release_frame_dc (f, dc); | |
190 | ||
191 | return list; | |
192 | } | |
193 | ||
194 | /* w32 implementation of open for font backend. | |
195 | Open a font specified by FONT_ENTITY on frame F. | |
196 | If the font is scalable, open it with PIXEL_SIZE. */ | |
f0121ad2 | 197 | static struct font * |
20399669 JR |
198 | w32font_open (f, font_entity, pixel_size) |
199 | FRAME_PTR f; | |
200 | Lisp_Object font_entity; | |
201 | int pixel_size; | |
f7a84cb4 | 202 | { |
f7a84cb4 JR |
203 | struct w32font_info *w32_font = xmalloc (sizeof (struct w32font_info)); |
204 | ||
f0121ad2 | 205 | if (w32_font == NULL) |
f7a84cb4 JR |
206 | return NULL; |
207 | ||
f0121ad2 | 208 | if (!w32font_open_internal (f, font_entity, pixel_size, w32_font)) |
f7a84cb4 JR |
209 | { |
210 | xfree (w32_font); | |
211 | return NULL; | |
212 | } | |
213 | ||
f0121ad2 | 214 | return (struct font *) w32_font; |
f7a84cb4 JR |
215 | } |
216 | ||
217 | /* w32 implementation of close for font_backend. | |
218 | Close FONT on frame F. */ | |
46fd1ded | 219 | void |
20399669 JR |
220 | w32font_close (f, font) |
221 | FRAME_PTR f; | |
222 | struct font *font; | |
f7a84cb4 JR |
223 | { |
224 | if (font->font.font) | |
225 | { | |
226 | W32FontStruct *old_w32_font = (W32FontStruct *)font->font.font; | |
e9a15283 | 227 | DeleteObject (old_w32_font->hfont); |
f7a84cb4 JR |
228 | xfree (old_w32_font); |
229 | font->font.font = 0; | |
230 | } | |
231 | ||
5ace1ec1 JR |
232 | if (font->font.full_name && font->font.full_name != font->font.name) |
233 | xfree (font->font.full_name); | |
234 | ||
f7a84cb4 JR |
235 | if (font->font.name) |
236 | xfree (font->font.name); | |
5ace1ec1 | 237 | |
f7a84cb4 JR |
238 | xfree (font); |
239 | } | |
240 | ||
241 | /* w32 implementation of has_char for font backend. | |
242 | Optional. | |
243 | If FONT_ENTITY has a glyph for character C (Unicode code point), | |
244 | return 1. If not, return 0. If a font must be opened to check | |
245 | it, return -1. */ | |
46fd1ded | 246 | int |
20399669 JR |
247 | w32font_has_char (entity, c) |
248 | Lisp_Object entity; | |
249 | int c; | |
f7a84cb4 | 250 | { |
d205d43b | 251 | Lisp_Object supported_scripts, extra, script; |
f7a84cb4 JR |
252 | DWORD mask; |
253 | ||
01dbeb0b JR |
254 | extra = AREF (entity, FONT_EXTRA_INDEX); |
255 | if (!CONSP (extra)) | |
256 | return -1; | |
257 | ||
d205d43b JR |
258 | supported_scripts = assq_no_quit (QCscript, extra); |
259 | if (!CONSP (supported_scripts)) | |
f7a84cb4 JR |
260 | return -1; |
261 | ||
d205d43b | 262 | supported_scripts = XCDR (supported_scripts); |
f7a84cb4 | 263 | |
d205d43b | 264 | script = CHAR_TABLE_REF (Vchar_script_table, c); |
f7a84cb4 | 265 | |
34fd2d28 | 266 | return (memq_no_quit (script, supported_scripts)) ? -1 : 0; |
f7a84cb4 JR |
267 | } |
268 | ||
269 | /* w32 implementation of encode_char for font backend. | |
270 | Return a glyph code of FONT for characer C (Unicode code point). | |
271 | If FONT doesn't have such a glyph, return FONT_INVALID_CODE. */ | |
34fd2d28 | 272 | static unsigned |
20399669 JR |
273 | w32font_encode_char (font, c) |
274 | struct font *font; | |
275 | int c; | |
f7a84cb4 | 276 | { |
34fd2d28 JR |
277 | struct frame *f; |
278 | HDC dc; | |
279 | HFONT old_font; | |
280 | DWORD retval; | |
281 | GCP_RESULTSW result; | |
282 | wchar_t in[2]; | |
283 | wchar_t out[2]; | |
284 | int len; | |
285 | struct w32font_info *w32_font = (struct w32font_info *) font; | |
286 | ||
287 | /* If glyph indexing is not working for this font, just return the | |
288 | unicode code-point. */ | |
289 | if (!w32_font->glyph_idx) | |
290 | return c; | |
291 | ||
292 | if (c > 0xFFFF) | |
293 | { | |
294 | /* TODO: Encode as surrogate pair and lookup the glyph. */ | |
295 | return FONT_INVALID_CODE; | |
296 | } | |
297 | else | |
298 | { | |
299 | in[0] = (wchar_t) c; | |
300 | len = 1; | |
301 | } | |
302 | ||
303 | bzero (&result, sizeof (result)); | |
304 | result.lStructSize = sizeof (result); | |
305 | result.lpGlyphs = out; | |
306 | result.nGlyphs = 2; | |
307 | ||
308 | f = XFRAME (selected_frame); | |
309 | ||
310 | dc = get_frame_dc (f); | |
311 | old_font = SelectObject (dc, ((W32FontStruct *) (font->font.font))->hfont); | |
312 | ||
313 | retval = GetCharacterPlacementW (dc, in, len, 0, &result, 0); | |
314 | ||
315 | SelectObject (dc, old_font); | |
316 | release_frame_dc (f, dc); | |
317 | ||
318 | if (retval) | |
319 | { | |
320 | if (result.nGlyphs != 1 || !result.lpGlyphs[0]) | |
321 | return FONT_INVALID_CODE; | |
322 | return result.lpGlyphs[0]; | |
323 | } | |
324 | else | |
325 | { | |
326 | int i; | |
327 | /* Mark this font as not supporting glyph indices. This can happen | |
328 | on Windows9x, and maybe with non-Truetype fonts on NT etc. */ | |
329 | w32_font->glyph_idx = 0; | |
54efdcd1 | 330 | recompute_cached_metrics (dc, w32_font); |
34fd2d28 JR |
331 | |
332 | return c; | |
333 | } | |
f7a84cb4 JR |
334 | } |
335 | ||
336 | /* w32 implementation of text_extents for font backend. | |
337 | Perform the size computation of glyphs of FONT and fillin members | |
338 | of METRICS. The glyphs are specified by their glyph codes in | |
78573c57 | 339 | CODE (length NGLYPHS). Apparently metrics can be NULL, in this |
f7a84cb4 | 340 | case just return the overall width. */ |
46fd1ded | 341 | int |
20399669 JR |
342 | w32font_text_extents (font, code, nglyphs, metrics) |
343 | struct font *font; | |
344 | unsigned *code; | |
345 | int nglyphs; | |
346 | struct font_metrics *metrics; | |
f7a84cb4 JR |
347 | { |
348 | int i; | |
2a36efcf JR |
349 | HFONT old_font = NULL; |
350 | HDC dc = NULL; | |
46fd1ded | 351 | struct frame * f; |
f7a84cb4 | 352 | int total_width = 0; |
f7a84cb4 | 353 | WORD *wcode = alloca(nglyphs * sizeof (WORD)); |
d205d43b | 354 | SIZE size; |
f7a84cb4 | 355 | |
46a923ac JR |
356 | /* TODO: Frames can come and go, and their fonts outlive them. So we |
357 | can't cache the frame in the font structure. Use selected_frame | |
358 | until the API is updated to pass in a frame. */ | |
9e1a2995 | 359 | f = XFRAME (selected_frame); |
859a9fdf | 360 | |
f7a84cb4 JR |
361 | if (metrics) |
362 | { | |
363 | GLYPHMETRICS gm; | |
d205d43b | 364 | MAT2 transform; |
34fd2d28 | 365 | struct w32font_info *w32_font = (struct w32font_info *) font; |
d205d43b JR |
366 | |
367 | /* Set transform to the identity matrix. */ | |
368 | bzero (&transform, sizeof (transform)); | |
369 | transform.eM11.value = 1; | |
370 | transform.eM22.value = 1; | |
78573c57 JR |
371 | metrics->width = 0; |
372 | metrics->ascent = 0; | |
373 | metrics->descent = 0; | |
46a923ac | 374 | metrics->lbearing = 0; |
f7a84cb4 JR |
375 | |
376 | for (i = 0; i < nglyphs; i++) | |
377 | { | |
34fd2d28 | 378 | if (*(code + i) < 128) |
46a923ac JR |
379 | { |
380 | /* Use cached metrics for ASCII. */ | |
381 | struct font_metrics *char_metric | |
34fd2d28 | 382 | = &w32_font->ascii_metrics[*(code+i)]; |
46a923ac JR |
383 | |
384 | /* If we couldn't get metrics when caching, use fallback. */ | |
385 | if (char_metric->width == 0) | |
386 | break; | |
387 | ||
388 | metrics->lbearing = max (metrics->lbearing, | |
389 | char_metric->lbearing - metrics->width); | |
390 | metrics->rbearing = max (metrics->rbearing, | |
391 | metrics->width + char_metric->rbearing); | |
392 | metrics->width += char_metric->width; | |
393 | metrics->ascent = max (metrics->ascent, char_metric->ascent); | |
394 | metrics->descent = max (metrics->descent, char_metric->descent); | |
395 | } | |
f7a84cb4 JR |
396 | else |
397 | { | |
2a36efcf JR |
398 | if (dc == NULL) |
399 | { | |
400 | dc = get_frame_dc (f); | |
401 | old_font = SelectObject (dc, ((W32FontStruct *) | |
402 | (font->font.font))->hfont); | |
403 | } | |
34fd2d28 JR |
404 | if (GetGlyphOutlineW (dc, *(code + i), |
405 | GGO_METRICS | |
406 | | w32_font->glyph_idx | |
407 | ? GGO_GLYPH_INDEX : 0, | |
408 | &gm, 0, NULL, &transform) != GDI_ERROR) | |
2a36efcf JR |
409 | { |
410 | int new_val = metrics->width + gm.gmBlackBoxX | |
411 | + gm.gmptGlyphOrigin.x; | |
412 | metrics->rbearing = max (metrics->rbearing, new_val); | |
413 | new_val = -gm.gmptGlyphOrigin.x - metrics->width; | |
414 | metrics->lbearing = max (metrics->lbearing, new_val); | |
415 | metrics->width += gm.gmCellIncX; | |
416 | new_val = -gm.gmptGlyphOrigin.y; | |
417 | metrics->ascent = max (metrics->ascent, new_val); | |
418 | new_val = gm.gmBlackBoxY + gm.gmptGlyphOrigin.y; | |
419 | metrics->descent = max (metrics->descent, new_val); | |
420 | } | |
421 | else | |
422 | { | |
34fd2d28 JR |
423 | if (w32_font->glyph_idx) |
424 | { | |
425 | /* Disable glyph indexing for this font, as we can't | |
426 | handle the metrics. Abort this run, our recovery | |
427 | strategies rely on having unicode code points here. | |
428 | This will cause a glitch in display, but in practice, | |
429 | any problems should be caught when initialising the | |
430 | metrics cache. */ | |
431 | w32_font->glyph_idx = 0; | |
54efdcd1 | 432 | recompute_cached_metrics (dc, w32_font); |
34fd2d28 JR |
433 | SelectObject (dc, old_font); |
434 | release_frame_dc (f, dc); | |
435 | return 0; | |
436 | } | |
2a36efcf JR |
437 | /* Rely on an estimate based on the overall font metrics. */ |
438 | break; | |
439 | } | |
f7a84cb4 JR |
440 | } |
441 | } | |
78573c57 JR |
442 | |
443 | /* If we got through everything, return. */ | |
444 | if (i == nglyphs) | |
445 | { | |
2a36efcf JR |
446 | if (dc != NULL) |
447 | { | |
448 | /* Restore state and release DC. */ | |
449 | SelectObject (dc, old_font); | |
450 | release_frame_dc (f, dc); | |
451 | } | |
78573c57 JR |
452 | |
453 | return metrics->width; | |
454 | } | |
f7a84cb4 | 455 | } |
78573c57 JR |
456 | |
457 | for (i = 0; i < nglyphs; i++) | |
f7a84cb4 | 458 | { |
78573c57 JR |
459 | if (code[i] < 0x10000) |
460 | wcode[i] = code[i]; | |
461 | else | |
462 | { | |
463 | /* TODO: Convert to surrogate, reallocating array if needed */ | |
464 | wcode[i] = 0xffff; | |
465 | } | |
f7a84cb4 JR |
466 | } |
467 | ||
2a36efcf JR |
468 | if (dc == NULL) |
469 | { | |
470 | dc = get_frame_dc (f); | |
471 | old_font = SelectObject (dc, ((W32FontStruct *) | |
472 | (font->font.font))->hfont); | |
473 | } | |
474 | ||
d205d43b | 475 | if (GetTextExtentPoint32W (dc, wcode, nglyphs, &size)) |
f7a84cb4 | 476 | { |
d205d43b | 477 | total_width = size.cx; |
f7a84cb4 JR |
478 | } |
479 | ||
d205d43b | 480 | if (!total_width) |
f7a84cb4 JR |
481 | { |
482 | RECT rect; | |
483 | rect.top = 0; rect.bottom = font->font.height; rect.left = 0; rect.right = 1; | |
484 | DrawTextW (dc, wcode, nglyphs, &rect, | |
485 | DT_CALCRECT | DT_NOPREFIX | DT_SINGLELINE); | |
486 | total_width = rect.right; | |
487 | } | |
d205d43b | 488 | |
78573c57 JR |
489 | if (metrics) |
490 | { | |
491 | metrics->width = total_width; | |
492 | metrics->ascent = font->ascent; | |
493 | metrics->descent = font->descent; | |
494 | metrics->lbearing = 0; | |
495 | metrics->rbearing = total_width | |
496 | + ((struct w32font_info *) font)->metrics.tmOverhang; | |
497 | } | |
498 | ||
f7a84cb4 JR |
499 | /* Restore state and release DC. */ |
500 | SelectObject (dc, old_font); | |
46fd1ded | 501 | release_frame_dc (f, dc); |
f7a84cb4 JR |
502 | |
503 | return total_width; | |
504 | } | |
505 | ||
506 | /* w32 implementation of draw for font backend. | |
507 | Optional. | |
508 | Draw glyphs between FROM and TO of S->char2b at (X Y) pixel | |
509 | position of frame F with S->FACE and S->GC. If WITH_BACKGROUND | |
510 | is nonzero, fill the background in advance. It is assured that | |
a74ddbda JR |
511 | WITH_BACKGROUND is zero when (FROM > 0 || TO < S->nchars). |
512 | ||
513 | TODO: Currently this assumes that the colors and fonts are already | |
514 | set in the DC. This seems to be true now, but maybe only due to | |
515 | the old font code setting it up. It may be safer to resolve faces | |
516 | and fonts in here and set them explicitly | |
517 | */ | |
518 | ||
46fd1ded | 519 | int |
20399669 JR |
520 | w32font_draw (s, from, to, x, y, with_background) |
521 | struct glyph_string *s; | |
522 | int from, to, x, y, with_background; | |
f7a84cb4 | 523 | { |
34fd2d28 | 524 | UINT options; |
5c2c9c79 | 525 | HRGN orig_clip; |
34fd2d28 JR |
526 | struct w32font_info *w32font = (struct w32font_info *) s->face->font_info; |
527 | ||
528 | options = w32font->glyph_idx; | |
5c2c9c79 JR |
529 | |
530 | /* Save clip region for later restoration. */ | |
531 | GetClipRgn(s->hdc, orig_clip); | |
532 | ||
533 | if (s->num_clips > 0) | |
534 | { | |
535 | HRGN new_clip = CreateRectRgnIndirect (s->clip); | |
536 | ||
537 | if (s->num_clips > 1) | |
538 | { | |
539 | HRGN clip2 = CreateRectRgnIndirect (s->clip + 1); | |
540 | ||
541 | CombineRgn (new_clip, new_clip, clip2, RGN_OR); | |
542 | DeleteObject (clip2); | |
543 | } | |
544 | ||
545 | SelectClipRgn (s->hdc, new_clip); | |
546 | DeleteObject (new_clip); | |
547 | } | |
f7a84cb4 | 548 | |
fb3b8017 JR |
549 | /* Using OPAQUE background mode can clear more background than expected |
550 | when Cleartype is used. Draw the background manually to avoid this. */ | |
551 | SetBkMode (s->hdc, TRANSPARENT); | |
f7a84cb4 JR |
552 | if (with_background) |
553 | { | |
1065a502 JR |
554 | HBRUSH brush; |
555 | RECT rect; | |
fb3b8017 | 556 | struct font *font = (struct font *) s->face->font_info; |
1065a502 JR |
557 | |
558 | brush = CreateSolidBrush (s->gc->background); | |
559 | rect.left = x; | |
fb3b8017 | 560 | rect.top = y - font->ascent; |
1065a502 | 561 | rect.right = x + s->width; |
fb3b8017 | 562 | rect.bottom = y + font->descent; |
1065a502 | 563 | FillRect (s->hdc, &rect, brush); |
f2b25c0e | 564 | DeleteObject (brush); |
f7a84cb4 | 565 | } |
040fe918 | 566 | |
de63f07f KH |
567 | if (s->padding_p) |
568 | { | |
569 | int len = to - from, i; | |
570 | ||
571 | for (i = 0; i < len; i++) | |
572 | ExtTextOutW (s->hdc, x + i, y, options, NULL, | |
8501c48b | 573 | s->char2b + from + i, 1, NULL); |
de63f07f KH |
574 | } |
575 | else | |
576 | ExtTextOutW (s->hdc, x, y, options, NULL, s->char2b + from, to - from, NULL); | |
5c2c9c79 JR |
577 | |
578 | /* Restore clip region. */ | |
579 | if (s->num_clips > 0) | |
580 | { | |
581 | SelectClipRgn (s->hdc, orig_clip); | |
582 | } | |
f7a84cb4 JR |
583 | } |
584 | ||
585 | /* w32 implementation of free_entity for font backend. | |
586 | Optional (if FONT_EXTRA_INDEX is not Lisp_Save_Value). | |
587 | Free FONT_EXTRA_INDEX field of FONT_ENTITY. | |
20399669 JR |
588 | static void |
589 | w32font_free_entity (Lisp_Object entity); | |
f7a84cb4 JR |
590 | */ |
591 | ||
592 | /* w32 implementation of prepare_face for font backend. | |
593 | Optional (if FACE->extra is not used). | |
594 | Prepare FACE for displaying characters by FONT on frame F by | |
595 | storing some data in FACE->extra. If successful, return 0. | |
596 | Otherwise, return -1. | |
20399669 JR |
597 | static int |
598 | w32font_prepare_face (FRAME_PTR f, struct face *face); | |
f7a84cb4 JR |
599 | */ |
600 | /* w32 implementation of done_face for font backend. | |
601 | Optional. | |
602 | Done FACE for displaying characters by FACE->font on frame F. | |
20399669 JR |
603 | static void |
604 | w32font_done_face (FRAME_PTR f, struct face *face); */ | |
f7a84cb4 JR |
605 | |
606 | /* w32 implementation of get_bitmap for font backend. | |
607 | Optional. | |
608 | Store bitmap data for glyph-code CODE of FONT in BITMAP. It is | |
f2b25c0e | 609 | intended that this method is called from the other font-driver |
f7a84cb4 | 610 | for actual drawing. |
20399669 JR |
611 | static int |
612 | w32font_get_bitmap (struct font *font, unsigned code, | |
613 | struct font_bitmap *bitmap, int bits_per_pixel); | |
f7a84cb4 JR |
614 | */ |
615 | /* w32 implementation of free_bitmap for font backend. | |
616 | Optional. | |
617 | Free bitmap data in BITMAP. | |
20399669 JR |
618 | static void |
619 | w32font_free_bitmap (struct font *font, struct font_bitmap *bitmap); | |
f7a84cb4 JR |
620 | */ |
621 | /* w32 implementation of get_outline for font backend. | |
622 | Optional. | |
623 | Return an outline data for glyph-code CODE of FONT. The format | |
624 | of the outline data depends on the font-driver. | |
20399669 JR |
625 | static void * |
626 | w32font_get_outline (struct font *font, unsigned code); | |
f7a84cb4 JR |
627 | */ |
628 | /* w32 implementation of free_outline for font backend. | |
629 | Optional. | |
630 | Free OUTLINE (that is obtained by the above method). | |
20399669 JR |
631 | static void |
632 | w32font_free_outline (struct font *font, void *outline); | |
f7a84cb4 JR |
633 | */ |
634 | /* w32 implementation of anchor_point for font backend. | |
635 | Optional. | |
636 | Get coordinates of the INDEXth anchor point of the glyph whose | |
637 | code is CODE. Store the coordinates in *X and *Y. Return 0 if | |
638 | the operations was successfull. Otherwise return -1. | |
20399669 JR |
639 | static int |
640 | w32font_anchor_point (struct font *font, unsigned code, | |
f7a84cb4 JR |
641 | int index, int *x, int *y); |
642 | */ | |
643 | /* w32 implementation of otf_capability for font backend. | |
644 | Optional. | |
645 | Return a list describing which scripts/languages FONT | |
646 | supports by which GSUB/GPOS features of OpenType tables. | |
20399669 JR |
647 | static Lisp_Object |
648 | w32font_otf_capability (struct font *font); | |
f7a84cb4 JR |
649 | */ |
650 | /* w32 implementation of otf_drive for font backend. | |
651 | Optional. | |
652 | Apply FONT's OTF-FEATURES to the glyph string. | |
653 | ||
654 | FEATURES specifies which OTF features to apply in this format: | |
655 | (SCRIPT LANGSYS GSUB-FEATURE GPOS-FEATURE) | |
656 | See the documentation of `font-drive-otf' for the detail. | |
657 | ||
658 | This method applies the specified features to the codes in the | |
659 | elements of GSTRING-IN (between FROMth and TOth). The output | |
660 | codes are stored in GSTRING-OUT at the IDXth element and the | |
661 | following elements. | |
662 | ||
663 | Return the number of output codes. If none of the features are | |
664 | applicable to the input data, return 0. If GSTRING-OUT is too | |
665 | short, return -1. | |
20399669 JR |
666 | static int |
667 | w32font_otf_drive (struct font *font, Lisp_Object features, | |
668 | Lisp_Object gstring_in, int from, int to, | |
669 | Lisp_Object gstring_out, int idx, | |
670 | int alternate_subst); | |
f7a84cb4 JR |
671 | */ |
672 | ||
46fd1ded JR |
673 | /* Internal implementation of w32font_list. |
674 | Additional parameter opentype_only restricts the returned fonts to | |
675 | opentype fonts, which can be used with the Uniscribe backend. */ | |
676 | Lisp_Object | |
677 | w32font_list_internal (frame, font_spec, opentype_only) | |
678 | Lisp_Object frame, font_spec; | |
679 | int opentype_only; | |
680 | { | |
681 | struct font_callback_data match_data; | |
682 | HDC dc; | |
683 | FRAME_PTR f = XFRAME (frame); | |
684 | ||
685 | match_data.orig_font_spec = font_spec; | |
686 | match_data.list = Qnil; | |
687 | match_data.frame = frame; | |
688 | ||
689 | bzero (&match_data.pattern, sizeof (LOGFONT)); | |
690 | fill_in_logfont (f, &match_data.pattern, font_spec); | |
691 | ||
692 | match_data.opentype_only = opentype_only; | |
693 | if (opentype_only) | |
694 | match_data.pattern.lfOutPrecision = OUT_OUTLINE_PRECIS; | |
695 | ||
696 | if (match_data.pattern.lfFaceName[0] == '\0') | |
697 | { | |
698 | /* EnumFontFamiliesEx does not take other fields into account if | |
699 | font name is blank, so need to use two passes. */ | |
700 | list_all_matching_fonts (&match_data); | |
701 | } | |
702 | else | |
703 | { | |
704 | dc = get_frame_dc (f); | |
705 | ||
706 | EnumFontFamiliesEx (dc, &match_data.pattern, | |
707 | (FONTENUMPROC) add_font_entity_to_list, | |
708 | (LPARAM) &match_data, 0); | |
709 | release_frame_dc (f, dc); | |
710 | } | |
711 | ||
712 | return NILP (match_data.list) ? null_vector : Fvconcat (1, &match_data.list); | |
713 | } | |
714 | ||
715 | /* Internal implementation of w32font_match. | |
716 | Additional parameter opentype_only restricts the returned fonts to | |
717 | opentype fonts, which can be used with the Uniscribe backend. */ | |
718 | Lisp_Object | |
719 | w32font_match_internal (frame, font_spec, opentype_only) | |
720 | Lisp_Object frame, font_spec; | |
721 | int opentype_only; | |
722 | { | |
723 | struct font_callback_data match_data; | |
724 | HDC dc; | |
725 | FRAME_PTR f = XFRAME (frame); | |
726 | ||
727 | match_data.orig_font_spec = font_spec; | |
728 | match_data.frame = frame; | |
729 | match_data.list = Qnil; | |
730 | ||
731 | bzero (&match_data.pattern, sizeof (LOGFONT)); | |
732 | fill_in_logfont (f, &match_data.pattern, font_spec); | |
733 | ||
734 | match_data.opentype_only = opentype_only; | |
735 | if (opentype_only) | |
736 | match_data.pattern.lfOutPrecision = OUT_OUTLINE_PRECIS; | |
737 | ||
738 | dc = get_frame_dc (f); | |
739 | ||
740 | EnumFontFamiliesEx (dc, &match_data.pattern, | |
741 | (FONTENUMPROC) add_one_font_entity_to_list, | |
742 | (LPARAM) &match_data, 0); | |
743 | release_frame_dc (f, dc); | |
744 | ||
745 | return NILP (match_data.list) ? Qnil : XCAR (match_data.list); | |
746 | } | |
747 | ||
f0121ad2 JR |
748 | int |
749 | w32font_open_internal (f, font_entity, pixel_size, w32_font) | |
750 | FRAME_PTR f; | |
751 | Lisp_Object font_entity; | |
752 | int pixel_size; | |
753 | struct w32font_info *w32_font; | |
754 | { | |
755 | int len, size; | |
756 | LOGFONT logfont; | |
757 | HDC dc; | |
758 | HFONT hfont, old_font; | |
759 | Lisp_Object val, extra; | |
760 | /* For backwards compatibility. */ | |
761 | W32FontStruct *compat_w32_font; | |
762 | ||
763 | struct font * font = (struct font *) w32_font; | |
764 | if (!font) | |
765 | return 0; | |
766 | ||
767 | bzero (&logfont, sizeof (logfont)); | |
768 | fill_in_logfont (f, &logfont, font_entity); | |
769 | ||
770 | size = XINT (AREF (font_entity, FONT_SIZE_INDEX)); | |
771 | if (!size) | |
772 | size = pixel_size; | |
773 | ||
774 | logfont.lfHeight = -size; | |
775 | hfont = CreateFontIndirect (&logfont); | |
776 | ||
777 | if (hfont == NULL) | |
778 | return 0; | |
779 | ||
f0121ad2 JR |
780 | /* Get the metrics for this font. */ |
781 | dc = get_frame_dc (f); | |
782 | old_font = SelectObject (dc, hfont); | |
783 | ||
784 | GetTextMetrics (dc, &w32_font->metrics); | |
785 | ||
54efdcd1 | 786 | w32_font->glyph_idx = ETO_GLYPH_INDEX; |
7145be81 JR |
787 | |
788 | /* Cache ASCII metrics. */ | |
54efdcd1 JR |
789 | recompute_cached_metrics (dc, w32_font); |
790 | ||
f0121ad2 JR |
791 | SelectObject (dc, old_font); |
792 | release_frame_dc (f, dc); | |
34fd2d28 | 793 | |
f0121ad2 JR |
794 | /* W32FontStruct - we should get rid of this, and use the w32font_info |
795 | struct for any W32 specific fields. font->font.font can then be hfont. */ | |
796 | font->font.font = xmalloc (sizeof (W32FontStruct)); | |
797 | compat_w32_font = (W32FontStruct *) font->font.font; | |
798 | bzero (compat_w32_font, sizeof (W32FontStruct)); | |
799 | compat_w32_font->font_type = UNICODE_FONT; | |
800 | /* Duplicate the text metrics. */ | |
801 | bcopy (&w32_font->metrics, &compat_w32_font->tm, sizeof (TEXTMETRIC)); | |
802 | compat_w32_font->hfont = hfont; | |
803 | ||
804 | len = strlen (logfont.lfFaceName); | |
805 | font->font.name = (char *) xmalloc (len + 1); | |
806 | bcopy (logfont.lfFaceName, font->font.name, len); | |
807 | font->font.name[len] = '\0'; | |
5ace1ec1 JR |
808 | |
809 | { | |
810 | char *name; | |
811 | ||
812 | /* We don't know how much space we need for the full name, so start with | |
813 | 96 bytes and go up in steps of 32. */ | |
814 | len = 96; | |
e3a77b22 | 815 | name = xmalloc (len); |
67997c79 JR |
816 | while (name && w32font_full_name (&logfont, font_entity, pixel_size, |
817 | name, len) < 0) | |
5ace1ec1 | 818 | { |
e3a77b22 | 819 | char *new = xrealloc (name, len += 32); |
5ace1ec1 JR |
820 | |
821 | if (! new) | |
e3a77b22 | 822 | xfree (name); |
5ace1ec1 JR |
823 | name = new; |
824 | } | |
825 | if (name) | |
826 | font->font.full_name = name; | |
827 | else | |
828 | font->font.full_name = font->font.name; | |
829 | } | |
f0121ad2 JR |
830 | font->font.charset = 0; |
831 | font->font.codepage = 0; | |
832 | font->font.size = w32_font->metrics.tmMaxCharWidth; | |
833 | font->font.height = w32_font->metrics.tmHeight | |
834 | + w32_font->metrics.tmExternalLeading; | |
835 | font->font.space_width = font->font.average_width | |
836 | = w32_font->metrics.tmAveCharWidth; | |
837 | ||
838 | font->font.vertical_centering = 0; | |
839 | font->font.encoding_type = 0; | |
840 | font->font.baseline_offset = 0; | |
841 | font->font.relative_compose = 0; | |
842 | font->font.default_ascent = w32_font->metrics.tmAscent; | |
843 | font->font.font_encoder = NULL; | |
844 | font->entity = font_entity; | |
845 | font->pixel_size = size; | |
846 | font->driver = &w32font_driver; | |
34fd2d28 JR |
847 | /* Use format cached during list, as the information we have access to |
848 | here is incomplete. */ | |
849 | extra = AREF (font_entity, FONT_EXTRA_INDEX); | |
850 | if (CONSP (extra)) | |
851 | { | |
852 | val = assq_no_quit (QCformat, extra); | |
853 | if (CONSP (val)) | |
854 | font->format = XCDR (val); | |
855 | else | |
856 | font->format = Qunknown; | |
857 | } | |
858 | else | |
859 | font->format = Qunknown; | |
860 | ||
f0121ad2 JR |
861 | font->file_name = NULL; |
862 | font->encoding_charset = -1; | |
863 | font->repertory_charset = -1; | |
04b65d2b JR |
864 | /* TODO: do we really want the minimum width here, which could be negative? */ |
865 | font->min_width = font->font.space_width; | |
f0121ad2 JR |
866 | font->ascent = w32_font->metrics.tmAscent; |
867 | font->descent = w32_font->metrics.tmDescent; | |
868 | font->scalable = w32_font->metrics.tmPitchAndFamily & TMPF_VECTOR; | |
869 | ||
04b65d2b JR |
870 | /* Set global flag fonts_changed_p to non-zero if the font loaded |
871 | has a character with a smaller width than any other character | |
872 | before, or if the font loaded has a smaller height than any other | |
873 | font loaded before. If this happens, it will make a glyph matrix | |
874 | reallocation necessary. */ | |
875 | { | |
876 | struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f); | |
877 | dpyinfo->n_fonts++; | |
878 | ||
879 | if (dpyinfo->n_fonts == 1) | |
880 | { | |
881 | dpyinfo->smallest_font_height = font->font.height; | |
882 | dpyinfo->smallest_char_width = font->min_width; | |
883 | } | |
884 | else | |
885 | { | |
886 | if (dpyinfo->smallest_font_height > font->font.height) | |
887 | { | |
888 | dpyinfo->smallest_font_height = font->font.height; | |
889 | fonts_changed_p |= 1; | |
890 | } | |
891 | if (dpyinfo->smallest_char_width > font->min_width) | |
892 | { | |
893 | dpyinfo->smallest_char_width = font->min_width; | |
894 | fonts_changed_p |= 1; | |
895 | } | |
896 | } | |
897 | } | |
898 | ||
f0121ad2 JR |
899 | return 1; |
900 | } | |
901 | ||
f7a84cb4 JR |
902 | /* Callback function for EnumFontFamiliesEx. |
903 | * Adds the name of a font to a Lisp list (passed in as the lParam arg). */ | |
20399669 JR |
904 | static int CALLBACK |
905 | add_font_name_to_list (logical_font, physical_font, font_type, list_object) | |
906 | ENUMLOGFONTEX *logical_font; | |
907 | NEWTEXTMETRICEX *physical_font; | |
908 | DWORD font_type; | |
909 | LPARAM list_object; | |
f7a84cb4 JR |
910 | { |
911 | Lisp_Object* list = (Lisp_Object *) list_object; | |
20a2b756 JR |
912 | Lisp_Object family; |
913 | ||
914 | /* Skip vertical fonts (intended only for printing) */ | |
915 | if (logical_font->elfLogFont.lfFaceName[0] == '@') | |
916 | return 1; | |
917 | ||
918 | family = intern_downcase (logical_font->elfLogFont.lfFaceName, | |
919 | strlen (logical_font->elfLogFont.lfFaceName)); | |
f7a84cb4 JR |
920 | if (! memq_no_quit (family, *list)) |
921 | *list = Fcons (family, *list); | |
922 | ||
923 | return 1; | |
924 | } | |
925 | ||
926 | /* Convert an enumerated Windows font to an Emacs font entity. */ | |
20399669 | 927 | static Lisp_Object |
91583281 | 928 | w32_enumfont_pattern_entity (frame, logical_font, physical_font, |
34fd2d28 | 929 | font_type, requested_font, backend) |
d205d43b | 930 | Lisp_Object frame; |
20399669 JR |
931 | ENUMLOGFONTEX *logical_font; |
932 | NEWTEXTMETRICEX *physical_font; | |
933 | DWORD font_type; | |
91583281 | 934 | LOGFONT *requested_font; |
34fd2d28 | 935 | Lisp_Object backend; |
f7a84cb4 JR |
936 | { |
937 | Lisp_Object entity, tem; | |
938 | LOGFONT *lf = (LOGFONT*) logical_font; | |
939 | BYTE generic_type; | |
34fd2d28 | 940 | BYTE full_type = physical_font->ntmTm.ntmFlags; |
f7a84cb4 | 941 | |
d205d43b | 942 | entity = Fmake_vector (make_number (FONT_ENTITY_MAX), Qnil); |
f7a84cb4 | 943 | |
34fd2d28 | 944 | ASET (entity, FONT_TYPE_INDEX, backend); |
d205d43b | 945 | ASET (entity, FONT_FRAME_INDEX, frame); |
c960bff8 | 946 | ASET (entity, FONT_REGISTRY_INDEX, w32_registry (lf->lfCharSet, font_type)); |
f7a84cb4 JR |
947 | ASET (entity, FONT_OBJLIST_INDEX, Qnil); |
948 | ||
949 | /* Foundry is difficult to get in readable form on Windows. | |
d205d43b JR |
950 | But Emacs crashes if it is not set, so set it to something more |
951 | generic. Thes values make xflds compatible with Emacs 22. */ | |
952 | if (lf->lfOutPrecision == OUT_STRING_PRECIS) | |
953 | tem = Qraster; | |
954 | else if (lf->lfOutPrecision == OUT_STROKE_PRECIS) | |
955 | tem = Qoutline; | |
956 | else | |
957 | tem = Qunknown; | |
958 | ||
959 | ASET (entity, FONT_FOUNDRY_INDEX, tem); | |
960 | ||
961 | /* Save the generic family in the extra info, as it is likely to be | |
962 | useful to users looking for a close match. */ | |
f7a84cb4 JR |
963 | generic_type = physical_font->ntmTm.tmPitchAndFamily & 0xF0; |
964 | if (generic_type == FF_DECORATIVE) | |
965 | tem = Qdecorative; | |
966 | else if (generic_type == FF_MODERN) | |
9e1a2995 | 967 | tem = Qmono; |
f7a84cb4 | 968 | else if (generic_type == FF_ROMAN) |
d205d43b | 969 | tem = Qserif; |
f7a84cb4 JR |
970 | else if (generic_type == FF_SCRIPT) |
971 | tem = Qscript; | |
972 | else if (generic_type == FF_SWISS) | |
9e1a2995 | 973 | tem = Qsans; |
f7a84cb4 | 974 | else |
9e1a2995 JR |
975 | tem = null_string; |
976 | ||
977 | ASET (entity, FONT_ADSTYLE_INDEX, tem); | |
f7a84cb4 | 978 | |
d205d43b JR |
979 | if (physical_font->ntmTm.tmPitchAndFamily & 0x01) |
980 | font_put_extra (entity, QCspacing, make_number (FONT_SPACING_PROPORTIONAL)); | |
981 | else | |
982 | font_put_extra (entity, QCspacing, make_number (FONT_SPACING_MONO)); | |
f7a84cb4 | 983 | |
91583281 JR |
984 | if (requested_font->lfQuality != DEFAULT_QUALITY) |
985 | { | |
986 | font_put_extra (entity, QCantialias, | |
987 | lispy_antialias_type (requested_font->lfQuality)); | |
988 | } | |
f7a84cb4 JR |
989 | ASET (entity, FONT_FAMILY_INDEX, |
990 | intern_downcase (lf->lfFaceName, strlen (lf->lfFaceName))); | |
991 | ||
992 | ASET (entity, FONT_WEIGHT_INDEX, make_number (lf->lfWeight)); | |
993 | ASET (entity, FONT_SLANT_INDEX, make_number (lf->lfItalic ? 200 : 100)); | |
d205d43b JR |
994 | /* TODO: PANOSE struct has this info, but need to call GetOutlineTextMetrics |
995 | to get it. */ | |
996 | ASET (entity, FONT_WIDTH_INDEX, make_number (100)); | |
f7a84cb4 | 997 | |
040fe918 JR |
998 | if (font_type & RASTER_FONTTYPE) |
999 | ASET (entity, FONT_SIZE_INDEX, make_number (physical_font->ntmTm.tmHeight)); | |
1000 | else | |
1001 | ASET (entity, FONT_SIZE_INDEX, make_number (0)); | |
f7a84cb4 JR |
1002 | |
1003 | /* Cache unicode codepoints covered by this font, as there is no other way | |
1004 | of getting this information easily. */ | |
040fe918 | 1005 | if (font_type & TRUETYPE_FONTTYPE) |
f7a84cb4 | 1006 | { |
d205d43b JR |
1007 | font_put_extra (entity, QCscript, |
1008 | font_supported_scripts (&physical_font->ntmFontSig)); | |
f7a84cb4 | 1009 | } |
d205d43b | 1010 | |
34fd2d28 JR |
1011 | /* This information is not fully available when opening fonts, so |
1012 | save it here. Only Windows 2000 and later return information | |
1013 | about opentype and type1 fonts, so need a fallback for detecting | |
1014 | truetype so that this information is not any worse than we could | |
1015 | have obtained later. */ | |
1016 | if (full_type & NTM_TT_OPENTYPE || font_type & TRUETYPE_FONTTYPE) | |
1017 | tem = intern ("truetype"); | |
1018 | else if (full_type & NTM_TYPE1) | |
1019 | tem = intern ("type1"); | |
1020 | else if (full_type & NTM_PS_OPENTYPE) | |
1021 | tem = intern ("postscript"); | |
1022 | else if (font_type & RASTER_FONTTYPE) | |
1023 | tem = intern ("w32bitmap"); | |
1024 | else | |
1025 | tem = intern ("w32vector"); | |
1026 | ||
1027 | font_put_extra (entity, QCformat, tem); | |
1028 | ||
f7a84cb4 JR |
1029 | return entity; |
1030 | } | |
1031 | ||
d205d43b JR |
1032 | |
1033 | /* Convert generic families to the family portion of lfPitchAndFamily. */ | |
1034 | BYTE | |
1035 | w32_generic_family (Lisp_Object name) | |
1036 | { | |
1037 | /* Generic families. */ | |
1038 | if (EQ (name, Qmonospace) || EQ (name, Qmono)) | |
1039 | return FF_MODERN; | |
9e1a2995 | 1040 | else if (EQ (name, Qsans) || EQ (name, Qsans_serif) || EQ (name, Qsansserif)) |
d205d43b JR |
1041 | return FF_SWISS; |
1042 | else if (EQ (name, Qserif)) | |
1043 | return FF_ROMAN; | |
1044 | else if (EQ (name, Qdecorative)) | |
1045 | return FF_DECORATIVE; | |
1046 | else if (EQ (name, Qscript)) | |
1047 | return FF_SCRIPT; | |
1048 | else | |
1049 | return FF_DONTCARE; | |
1050 | } | |
1051 | ||
1052 | static int | |
1053 | logfonts_match (font, pattern) | |
1054 | LOGFONT *font, *pattern; | |
1055 | { | |
1056 | /* Only check height for raster fonts. */ | |
1057 | if (pattern->lfHeight && font->lfOutPrecision == OUT_STRING_PRECIS | |
1058 | && font->lfHeight != pattern->lfHeight) | |
1059 | return 0; | |
1060 | ||
1061 | /* Have some flexibility with weights. */ | |
1062 | if (pattern->lfWeight | |
1063 | && ((font->lfWeight < (pattern->lfWeight - 150)) | |
1064 | || font->lfWeight > (pattern->lfWeight + 150))) | |
1065 | return 0; | |
1066 | ||
1067 | /* Charset and face should be OK. Italic has to be checked | |
1068 | against the original spec, in case we don't have any preference. */ | |
1069 | return 1; | |
1070 | } | |
1071 | ||
1072 | static int | |
1073 | font_matches_spec (type, font, spec) | |
1074 | DWORD type; | |
1075 | NEWTEXTMETRICEX *font; | |
1076 | Lisp_Object spec; | |
1077 | { | |
1078 | Lisp_Object extra, val; | |
1079 | ||
1080 | /* Check italic. Can't check logfonts, since it is a boolean field, | |
1081 | so there is no difference between "non-italic" and "don't care". */ | |
1082 | val = AREF (spec, FONT_SLANT_INDEX); | |
1083 | if (INTEGERP (val)) | |
1084 | { | |
1085 | int slant = XINT (val); | |
1086 | if ((slant > 150 && !font->ntmTm.tmItalic) | |
1087 | || (slant <= 150 && font->ntmTm.tmItalic)) | |
d205d43b | 1088 | return 0; |
d205d43b JR |
1089 | } |
1090 | ||
4f2a2ee2 JR |
1091 | /* Check adstyle against generic family. */ |
1092 | val = AREF (spec, FONT_ADSTYLE_INDEX); | |
1093 | if (!NILP (val)) | |
1094 | { | |
1095 | BYTE family = w32_generic_family (val); | |
1096 | if (family != FF_DONTCARE | |
1097 | && family != (font->ntmTm.tmPitchAndFamily & 0xF0)) | |
1098 | return 0; | |
1099 | } | |
1100 | ||
d205d43b JR |
1101 | /* Check extra parameters. */ |
1102 | for (extra = AREF (spec, FONT_EXTRA_INDEX); | |
1103 | CONSP (extra); extra = XCDR (extra)) | |
1104 | { | |
1105 | Lisp_Object extra_entry; | |
1106 | extra_entry = XCAR (extra); | |
1107 | if (CONSP (extra_entry)) | |
1108 | { | |
1109 | Lisp_Object key = XCAR (extra_entry); | |
1110 | val = XCDR (extra_entry); | |
9e1a2995 | 1111 | if (EQ (key, QCspacing)) |
d205d43b JR |
1112 | { |
1113 | int proportional; | |
1114 | if (INTEGERP (val)) | |
1115 | { | |
1116 | int spacing = XINT (val); | |
1117 | proportional = (spacing < FONT_SPACING_MONO); | |
1118 | } | |
1119 | else if (EQ (val, Qp)) | |
1120 | proportional = 1; | |
1121 | else if (EQ (val, Qc) || EQ (val, Qm)) | |
1122 | proportional = 0; | |
1123 | else | |
1124 | return 0; /* Bad font spec. */ | |
1125 | ||
1126 | if ((proportional && !(font->ntmTm.tmPitchAndFamily & 0x01)) | |
1127 | || (!proportional && (font->ntmTm.tmPitchAndFamily & 0x01))) | |
1128 | return 0; | |
1129 | } | |
1130 | else if (EQ (key, QCscript) && SYMBOLP (val)) | |
1131 | { | |
1132 | /* Only truetype fonts will have information about what | |
1133 | scripts they support. This probably means the user | |
1134 | will have to force Emacs to use raster, postscript | |
1135 | or atm fonts for non-ASCII text. */ | |
1136 | if (type & TRUETYPE_FONTTYPE) | |
1137 | { | |
1138 | Lisp_Object support | |
1139 | = font_supported_scripts (&font->ntmFontSig); | |
1140 | if (! memq_no_quit (val, support)) | |
1141 | return 0; | |
1142 | } | |
1143 | else | |
1144 | { | |
1145 | /* Return specific matches, but play it safe. Fonts | |
1146 | that cover more than their charset would suggest | |
1147 | are likely to be truetype or opentype fonts, | |
1148 | covered above. */ | |
1149 | if (EQ (val, Qlatin)) | |
1150 | { | |
1151 | /* Although every charset but symbol, thai and | |
1152 | arabic contains the basic ASCII set of latin | |
1153 | characters, Emacs expects much more. */ | |
1154 | if (font->ntmTm.tmCharSet != ANSI_CHARSET) | |
1155 | return 0; | |
1156 | } | |
1157 | else if (EQ (val, Qsymbol)) | |
1158 | { | |
1159 | if (font->ntmTm.tmCharSet != SYMBOL_CHARSET) | |
1160 | return 0; | |
1161 | } | |
1162 | else if (EQ (val, Qcyrillic)) | |
1163 | { | |
1164 | if (font->ntmTm.tmCharSet != RUSSIAN_CHARSET) | |
1165 | return 0; | |
1166 | } | |
1167 | else if (EQ (val, Qgreek)) | |
1168 | { | |
1169 | if (font->ntmTm.tmCharSet != GREEK_CHARSET) | |
1170 | return 0; | |
1171 | } | |
1172 | else if (EQ (val, Qarabic)) | |
1173 | { | |
1174 | if (font->ntmTm.tmCharSet != ARABIC_CHARSET) | |
1175 | return 0; | |
1176 | } | |
1177 | else if (EQ (val, Qhebrew)) | |
1178 | { | |
1179 | if (font->ntmTm.tmCharSet != HEBREW_CHARSET) | |
1180 | return 0; | |
1181 | } | |
1182 | else if (EQ (val, Qthai)) | |
1183 | { | |
1184 | if (font->ntmTm.tmCharSet != THAI_CHARSET) | |
1185 | return 0; | |
1186 | } | |
1187 | else if (EQ (val, Qkana)) | |
1188 | { | |
1189 | if (font->ntmTm.tmCharSet != SHIFTJIS_CHARSET) | |
1190 | return 0; | |
1191 | } | |
1192 | else if (EQ (val, Qbopomofo)) | |
1193 | { | |
1194 | if (font->ntmTm.tmCharSet != CHINESEBIG5_CHARSET) | |
1195 | return 0; | |
1196 | } | |
1197 | else if (EQ (val, Qhangul)) | |
1198 | { | |
1199 | if (font->ntmTm.tmCharSet != HANGUL_CHARSET | |
1200 | && font->ntmTm.tmCharSet != JOHAB_CHARSET) | |
1201 | return 0; | |
1202 | } | |
1203 | else if (EQ (val, Qhan)) | |
1204 | { | |
1205 | if (font->ntmTm.tmCharSet != CHINESEBIG5_CHARSET | |
1206 | && font->ntmTm.tmCharSet != GB2312_CHARSET | |
1207 | && font->ntmTm.tmCharSet != HANGUL_CHARSET | |
1208 | && font->ntmTm.tmCharSet != JOHAB_CHARSET | |
1209 | && font->ntmTm.tmCharSet != SHIFTJIS_CHARSET) | |
1210 | return 0; | |
1211 | } | |
1212 | else | |
1213 | /* Other scripts unlikely to be handled. */ | |
1214 | return 0; | |
1215 | } | |
1216 | } | |
1217 | } | |
1218 | } | |
1219 | return 1; | |
1220 | } | |
1221 | ||
c960bff8 JR |
1222 | static int |
1223 | w32font_coverage_ok (coverage, charset) | |
1224 | FONTSIGNATURE * coverage; | |
1225 | BYTE charset; | |
1226 | { | |
1227 | DWORD subrange1 = coverage->fsUsb[1]; | |
1228 | ||
1229 | #define SUBRANGE1_HAN_MASK 0x08000000 | |
1230 | #define SUBRANGE1_HANGEUL_MASK 0x01000000 | |
1231 | #define SUBRANGE1_JAPANESE_MASK (0x00060000 | SUBRANGE1_HAN_MASK) | |
1232 | ||
1233 | if (charset == GB2312_CHARSET || charset == CHINESEBIG5_CHARSET) | |
1234 | { | |
1235 | return (subrange1 & SUBRANGE1_HAN_MASK) == SUBRANGE1_HAN_MASK; | |
1236 | } | |
1237 | else if (charset == SHIFTJIS_CHARSET) | |
1238 | { | |
1239 | return (subrange1 & SUBRANGE1_JAPANESE_MASK) == SUBRANGE1_JAPANESE_MASK; | |
1240 | } | |
1241 | else if (charset == HANGEUL_CHARSET) | |
1242 | { | |
1243 | return (subrange1 & SUBRANGE1_HANGEUL_MASK) == SUBRANGE1_HANGEUL_MASK; | |
1244 | } | |
1245 | ||
1246 | return 1; | |
1247 | } | |
1248 | ||
f7a84cb4 | 1249 | /* Callback function for EnumFontFamiliesEx. |
d205d43b JR |
1250 | * Checks if a font matches everything we are trying to check agaist, |
1251 | * and if so, adds it to a list. Both the data we are checking against | |
1252 | * and the list to which the fonts are added are passed in via the | |
1253 | * lparam argument, in the form of a font_callback_data struct. */ | |
20399669 | 1254 | static int CALLBACK |
d205d43b | 1255 | add_font_entity_to_list (logical_font, physical_font, font_type, lParam) |
20399669 JR |
1256 | ENUMLOGFONTEX *logical_font; |
1257 | NEWTEXTMETRICEX *physical_font; | |
1258 | DWORD font_type; | |
d205d43b | 1259 | LPARAM lParam; |
f7a84cb4 | 1260 | { |
d205d43b JR |
1261 | struct font_callback_data *match_data |
1262 | = (struct font_callback_data *) lParam; | |
f7a84cb4 | 1263 | |
46fd1ded JR |
1264 | if ((!match_data->opentype_only |
1265 | || (physical_font->ntmTm.ntmFlags & NTMFLAGS_OPENTYPE)) | |
1266 | && logfonts_match (&logical_font->elfLogFont, &match_data->pattern) | |
d205d43b | 1267 | && font_matches_spec (font_type, physical_font, |
4f2a2ee2 | 1268 | match_data->orig_font_spec) |
c960bff8 JR |
1269 | && w32font_coverage_ok (&physical_font->ntmFontSig, |
1270 | match_data->pattern.lfCharSet) | |
4f2a2ee2 JR |
1271 | /* Avoid substitutions involving raster fonts (eg Helv -> MS Sans Serif) |
1272 | We limit this to raster fonts, because the test can catch some | |
1273 | genuine fonts (eg the full name of DejaVu Sans Mono Light is actually | |
1274 | DejaVu Sans Mono ExtraLight). Helvetica -> Arial substitution will | |
1275 | therefore get through this test. Since full names can be prefixed | |
1276 | by a foundry, we accept raster fonts if the font name is found | |
1277 | anywhere within the full name. */ | |
1278 | && (logical_font->elfLogFont.lfOutPrecision != OUT_STRING_PRECIS | |
1279 | || strstr (logical_font->elfFullName, | |
1280 | logical_font->elfLogFont.lfFaceName))) | |
d205d43b JR |
1281 | { |
1282 | Lisp_Object entity | |
1283 | = w32_enumfont_pattern_entity (match_data->frame, logical_font, | |
91583281 | 1284 | physical_font, font_type, |
34fd2d28 JR |
1285 | &match_data->pattern, |
1286 | match_data->opentype_only | |
1287 | ? Quniscribe : Qgdi); | |
d205d43b JR |
1288 | if (!NILP (entity)) |
1289 | match_data->list = Fcons (entity, match_data->list); | |
1290 | } | |
f7a84cb4 JR |
1291 | return 1; |
1292 | } | |
1293 | ||
1294 | /* Callback function for EnumFontFamiliesEx. | |
d205d43b | 1295 | * Terminates the search once we have a match. */ |
20399669 | 1296 | static int CALLBACK |
d205d43b | 1297 | add_one_font_entity_to_list (logical_font, physical_font, font_type, lParam) |
20399669 JR |
1298 | ENUMLOGFONTEX *logical_font; |
1299 | NEWTEXTMETRICEX *physical_font; | |
1300 | DWORD font_type; | |
d205d43b | 1301 | LPARAM lParam; |
f7a84cb4 | 1302 | { |
d205d43b JR |
1303 | struct font_callback_data *match_data |
1304 | = (struct font_callback_data *) lParam; | |
1305 | add_font_entity_to_list (logical_font, physical_font, font_type, lParam); | |
1306 | ||
1307 | /* If we have a font in the list, terminate the search. */ | |
1308 | return !NILP (match_data->list); | |
f7a84cb4 JR |
1309 | } |
1310 | ||
1311 | /* Convert a Lisp font registry (symbol) to a windows charset. */ | |
20399669 JR |
1312 | static LONG |
1313 | registry_to_w32_charset (charset) | |
1314 | Lisp_Object charset; | |
f7a84cb4 JR |
1315 | { |
1316 | if (EQ (charset, Qiso10646_1) || EQ (charset, Qunicode_bmp) | |
1317 | || EQ (charset, Qunicode_sip)) | |
1318 | return DEFAULT_CHARSET; /* UNICODE_CHARSET not defined in MingW32 */ | |
1319 | else if (EQ (charset, Qiso8859_1)) | |
1320 | return ANSI_CHARSET; | |
040fe918 JR |
1321 | else if (SYMBOLP (charset)) |
1322 | return x_to_w32_charset (SDATA (SYMBOL_NAME (charset))); | |
f7a84cb4 JR |
1323 | else if (STRINGP (charset)) |
1324 | return x_to_w32_charset (SDATA (charset)); | |
1325 | else | |
1326 | return DEFAULT_CHARSET; | |
1327 | } | |
1328 | ||
20399669 | 1329 | static Lisp_Object |
c960bff8 | 1330 | w32_registry (w32_charset, font_type) |
20399669 | 1331 | LONG w32_charset; |
c960bff8 | 1332 | DWORD font_type; |
f7a84cb4 | 1333 | { |
c960bff8 JR |
1334 | /* If charset is defaulted, use ANSI (unicode for truetype fonts). */ |
1335 | if (w32_charset == DEFAULT_CHARSET) | |
1336 | w32_charset = ANSI_CHARSET; | |
1337 | ||
1338 | if (font_type == TRUETYPE_FONTTYPE && w32_charset == ANSI_CHARSET) | |
d205d43b | 1339 | return Qiso10646_1; |
f7a84cb4 | 1340 | else |
040fe918 JR |
1341 | { |
1342 | char * charset = w32_to_x_charset (w32_charset, NULL); | |
1343 | return intern_downcase (charset, strlen(charset)); | |
1344 | } | |
f7a84cb4 JR |
1345 | } |
1346 | ||
f7a84cb4 | 1347 | /* Fill in all the available details of LOGFONT from FONT_SPEC. */ |
20399669 JR |
1348 | static void |
1349 | fill_in_logfont (f, logfont, font_spec) | |
1350 | FRAME_PTR f; | |
1351 | LOGFONT *logfont; | |
1352 | Lisp_Object font_spec; | |
f7a84cb4 | 1353 | { |
d205d43b | 1354 | Lisp_Object tmp, extra; |
f7a84cb4 JR |
1355 | int dpi = FRAME_W32_DISPLAY_INFO (f)->resy; |
1356 | ||
d205d43b JR |
1357 | extra = AREF (font_spec, FONT_EXTRA_INDEX); |
1358 | /* Allow user to override dpi settings. */ | |
1359 | if (CONSP (extra)) | |
1360 | { | |
1361 | tmp = assq_no_quit (QCdpi, extra); | |
1362 | if (CONSP (tmp) && INTEGERP (XCDR (tmp))) | |
1363 | { | |
1364 | dpi = XINT (XCDR (tmp)); | |
1365 | } | |
1366 | else if (CONSP (tmp) && FLOATP (XCDR (tmp))) | |
1367 | { | |
1368 | dpi = (int) (XFLOAT_DATA (XCDR (tmp)) + 0.5); | |
1369 | } | |
1370 | } | |
f7a84cb4 JR |
1371 | |
1372 | /* Height */ | |
1373 | tmp = AREF (font_spec, FONT_SIZE_INDEX); | |
1374 | if (INTEGERP (tmp)) | |
040fe918 | 1375 | logfont->lfHeight = -1 * XINT (tmp); |
f7a84cb4 | 1376 | else if (FLOATP (tmp)) |
d205d43b | 1377 | logfont->lfHeight = (int) (-1.0 * dpi * XFLOAT_DATA (tmp) / 72.27 + 0.5); |
f7a84cb4 JR |
1378 | |
1379 | /* Escapement */ | |
1380 | ||
1381 | /* Orientation */ | |
1382 | ||
1383 | /* Weight */ | |
1384 | tmp = AREF (font_spec, FONT_WEIGHT_INDEX); | |
1385 | if (INTEGERP (tmp)) | |
1386 | logfont->lfWeight = XINT (tmp); | |
1387 | ||
1388 | /* Italic */ | |
1389 | tmp = AREF (font_spec, FONT_SLANT_INDEX); | |
1390 | if (INTEGERP (tmp)) | |
1391 | { | |
1392 | int slant = XINT (tmp); | |
1393 | logfont->lfItalic = slant > 150 ? 1 : 0; | |
1394 | } | |
1395 | ||
1396 | /* Underline */ | |
1397 | ||
1398 | /* Strikeout */ | |
1399 | ||
1400 | /* Charset */ | |
1401 | tmp = AREF (font_spec, FONT_REGISTRY_INDEX); | |
1402 | if (! NILP (tmp)) | |
d205d43b | 1403 | logfont->lfCharSet = registry_to_w32_charset (tmp); |
f7a84cb4 JR |
1404 | |
1405 | /* Out Precision */ | |
91583281 | 1406 | |
f7a84cb4 | 1407 | /* Clip Precision */ |
91583281 JR |
1408 | |
1409 | /* Quality */ | |
040fe918 JR |
1410 | logfont->lfQuality = DEFAULT_QUALITY; |
1411 | ||
d205d43b JR |
1412 | /* Generic Family and Face Name */ |
1413 | logfont->lfPitchAndFamily = FF_DONTCARE | DEFAULT_PITCH; | |
1414 | ||
f7a84cb4 | 1415 | tmp = AREF (font_spec, FONT_FAMILY_INDEX); |
d205d43b JR |
1416 | if (! NILP (tmp)) |
1417 | { | |
1418 | logfont->lfPitchAndFamily = w32_generic_family (tmp) | DEFAULT_PITCH; | |
1419 | if ((logfont->lfPitchAndFamily & 0xF0) != FF_DONTCARE) | |
1420 | ; /* Font name was generic, don't fill in font name. */ | |
1421 | /* Font families are interned, but allow for strings also in case of | |
1422 | user input. */ | |
1423 | else if (SYMBOLP (tmp)) | |
1424 | strncpy (logfont->lfFaceName, SDATA (SYMBOL_NAME (tmp)), LF_FACESIZE); | |
1425 | else if (STRINGP (tmp)) | |
1426 | strncpy (logfont->lfFaceName, SDATA (tmp), LF_FACESIZE); | |
1427 | } | |
f7a84cb4 | 1428 | |
9e1a2995 JR |
1429 | tmp = AREF (font_spec, FONT_ADSTYLE_INDEX); |
1430 | if (!NILP (tmp)) | |
1431 | { | |
1432 | /* Override generic family. */ | |
1433 | BYTE family = w32_generic_family (tmp); | |
1434 | if (family != FF_DONTCARE) | |
1435 | logfont->lfPitchAndFamily = family | DEFAULT_PITCH; | |
1436 | } | |
1437 | ||
d205d43b JR |
1438 | /* Process EXTRA info. */ |
1439 | for ( ; CONSP (extra); extra = XCDR (extra)) | |
1440 | { | |
1441 | tmp = XCAR (extra); | |
1442 | if (CONSP (tmp)) | |
1443 | { | |
1444 | Lisp_Object key, val; | |
1445 | key = XCAR (tmp), val = XCDR (tmp); | |
9e1a2995 | 1446 | if (EQ (key, QCspacing)) |
d205d43b JR |
1447 | { |
1448 | /* Set pitch based on the spacing property. */ | |
1449 | if (INTEGERP (val)) | |
1450 | { | |
1451 | int spacing = XINT (val); | |
1452 | if (spacing < FONT_SPACING_MONO) | |
1453 | logfont->lfPitchAndFamily | |
1454 | = logfont->lfPitchAndFamily & 0xF0 | VARIABLE_PITCH; | |
1455 | else | |
1456 | logfont->lfPitchAndFamily | |
1457 | = logfont->lfPitchAndFamily & 0xF0 | FIXED_PITCH; | |
1458 | } | |
1459 | else if (EQ (val, Qp)) | |
1460 | logfont->lfPitchAndFamily | |
1461 | = logfont->lfPitchAndFamily & 0xF0 | VARIABLE_PITCH; | |
1462 | else if (EQ (val, Qc) || EQ (val, Qm)) | |
1463 | logfont->lfPitchAndFamily | |
1464 | = logfont->lfPitchAndFamily & 0xF0 | FIXED_PITCH; | |
1465 | } | |
1466 | /* Only use QCscript if charset is not provided, or is unicode | |
1467 | and a single script is specified. This is rather crude, | |
1468 | and is only used to narrow down the fonts returned where | |
1469 | there is a definite match. Some scripts, such as latin, han, | |
1470 | cjk-misc match multiple lfCharSet values, so we can't pre-filter | |
1471 | them. */ | |
1472 | else if (EQ (key, QCscript) | |
1473 | && logfont->lfCharSet == DEFAULT_CHARSET | |
1474 | && SYMBOLP (val)) | |
1475 | { | |
1476 | if (EQ (val, Qgreek)) | |
1477 | logfont->lfCharSet = GREEK_CHARSET; | |
1478 | else if (EQ (val, Qhangul)) | |
1479 | logfont->lfCharSet = HANGUL_CHARSET; | |
1480 | else if (EQ (val, Qkana) || EQ (val, Qkanbun)) | |
1481 | logfont->lfCharSet = SHIFTJIS_CHARSET; | |
1482 | else if (EQ (val, Qbopomofo)) | |
1483 | logfont->lfCharSet = CHINESEBIG5_CHARSET; | |
1484 | /* GB 18030 supports tibetan, yi, mongolian, | |
1485 | fonts that support it should show up if we ask for | |
1486 | GB2312 fonts. */ | |
1487 | else if (EQ (val, Qtibetan) || EQ (val, Qyi) | |
1488 | || EQ (val, Qmongolian)) | |
1489 | logfont->lfCharSet = GB2312_CHARSET; | |
1490 | else if (EQ (val, Qhebrew)) | |
1491 | logfont->lfCharSet = HEBREW_CHARSET; | |
1492 | else if (EQ (val, Qarabic)) | |
1493 | logfont->lfCharSet = ARABIC_CHARSET; | |
1494 | else if (EQ (val, Qthai)) | |
1495 | logfont->lfCharSet = THAI_CHARSET; | |
1496 | else if (EQ (val, Qsymbol)) | |
1497 | logfont->lfCharSet = SYMBOL_CHARSET; | |
1498 | } | |
91583281 JR |
1499 | else if (EQ (key, QCantialias) && SYMBOLP (val)) |
1500 | { | |
1501 | logfont->lfQuality = w32_antialias_type (val); | |
1502 | } | |
d205d43b JR |
1503 | } |
1504 | } | |
f7a84cb4 JR |
1505 | } |
1506 | ||
20399669 | 1507 | static void |
d205d43b JR |
1508 | list_all_matching_fonts (match_data) |
1509 | struct font_callback_data *match_data; | |
f7a84cb4 JR |
1510 | { |
1511 | HDC dc; | |
d205d43b JR |
1512 | Lisp_Object families = w32font_list_family (match_data->frame); |
1513 | struct frame *f = XFRAME (match_data->frame); | |
f7a84cb4 JR |
1514 | |
1515 | dc = get_frame_dc (f); | |
1516 | ||
1517 | while (!NILP (families)) | |
1518 | { | |
d205d43b JR |
1519 | /* TODO: Use the Unicode versions of the W32 APIs, so we can |
1520 | handle non-ASCII font names. */ | |
1521 | char *name; | |
f7a84cb4 JR |
1522 | Lisp_Object family = CAR (families); |
1523 | families = CDR (families); | |
d205d43b JR |
1524 | if (NILP (family)) |
1525 | continue; | |
1526 | else if (STRINGP (family)) | |
1527 | name = SDATA (family); | |
1528 | else | |
1529 | name = SDATA (SYMBOL_NAME (family)); | |
1530 | ||
1531 | strncpy (match_data->pattern.lfFaceName, name, LF_FACESIZE); | |
1532 | match_data->pattern.lfFaceName[LF_FACESIZE - 1] = '\0'; | |
1533 | ||
1534 | EnumFontFamiliesEx (dc, &match_data->pattern, | |
1535 | (FONTENUMPROC) add_font_entity_to_list, | |
1536 | (LPARAM) match_data, 0); | |
f7a84cb4 JR |
1537 | } |
1538 | ||
1539 | release_frame_dc (f, dc); | |
1540 | } | |
1541 | ||
91583281 JR |
1542 | static Lisp_Object |
1543 | lispy_antialias_type (type) | |
1544 | BYTE type; | |
1545 | { | |
1546 | Lisp_Object lispy; | |
1547 | ||
1548 | switch (type) | |
1549 | { | |
1550 | case NONANTIALIASED_QUALITY: | |
1551 | lispy = Qnone; | |
1552 | break; | |
1553 | case ANTIALIASED_QUALITY: | |
1554 | lispy = Qstandard; | |
1555 | break; | |
1556 | case CLEARTYPE_QUALITY: | |
1557 | lispy = Qsubpixel; | |
1558 | break; | |
1559 | case CLEARTYPE_NATURAL_QUALITY: | |
1560 | lispy = Qnatural; | |
1561 | break; | |
1562 | default: | |
1563 | lispy = Qnil; | |
1564 | break; | |
1565 | } | |
1566 | return lispy; | |
1567 | } | |
1568 | ||
1569 | /* Convert antialiasing symbols to lfQuality */ | |
1570 | static BYTE | |
1571 | w32_antialias_type (type) | |
1572 | Lisp_Object type; | |
1573 | { | |
1574 | if (EQ (type, Qnone)) | |
1575 | return NONANTIALIASED_QUALITY; | |
1576 | else if (EQ (type, Qstandard)) | |
1577 | return ANTIALIASED_QUALITY; | |
1578 | else if (EQ (type, Qsubpixel)) | |
1579 | return CLEARTYPE_QUALITY; | |
1580 | else if (EQ (type, Qnatural)) | |
1581 | return CLEARTYPE_NATURAL_QUALITY; | |
1582 | else | |
1583 | return DEFAULT_QUALITY; | |
1584 | } | |
1585 | ||
d205d43b JR |
1586 | /* Return a list of all the scripts that the font supports. */ |
1587 | static Lisp_Object | |
1588 | font_supported_scripts (FONTSIGNATURE * sig) | |
f7a84cb4 | 1589 | { |
d205d43b JR |
1590 | DWORD * subranges = sig->fsUsb; |
1591 | Lisp_Object supported = Qnil; | |
1592 | ||
1593 | /* Match a single subrange. SYM is set if bit N is set in subranges. */ | |
1594 | #define SUBRANGE(n,sym) \ | |
1595 | if (subranges[(n) / 32] & (1 << ((n) % 32))) \ | |
1596 | supported = Fcons ((sym), supported) | |
1597 | ||
1598 | /* Match multiple subranges. SYM is set if any MASK bit is set in | |
1599 | subranges[0 - 3]. */ | |
1600 | #define MASK_ANY(mask0,mask1,mask2,mask3,sym) \ | |
1601 | if ((subranges[0] & (mask0)) || (subranges[1] & (mask1)) \ | |
1602 | || (subranges[2] & (mask2)) || (subranges[3] & (mask3))) \ | |
1603 | supported = Fcons ((sym), supported) | |
1604 | ||
1605 | SUBRANGE (0, Qlatin); /* There are many others... */ | |
1606 | ||
1607 | SUBRANGE (7, Qgreek); | |
1608 | SUBRANGE (8, Qcoptic); | |
1609 | SUBRANGE (9, Qcyrillic); | |
1610 | SUBRANGE (10, Qarmenian); | |
1611 | SUBRANGE (11, Qhebrew); | |
1612 | SUBRANGE (13, Qarabic); | |
1613 | SUBRANGE (14, Qnko); | |
1614 | SUBRANGE (15, Qdevanagari); | |
1615 | SUBRANGE (16, Qbengali); | |
1616 | SUBRANGE (17, Qgurmukhi); | |
1617 | SUBRANGE (18, Qgujarati); | |
1618 | SUBRANGE (19, Qoriya); | |
1619 | SUBRANGE (20, Qtamil); | |
1620 | SUBRANGE (21, Qtelugu); | |
1621 | SUBRANGE (22, Qkannada); | |
1622 | SUBRANGE (23, Qmalayalam); | |
1623 | SUBRANGE (24, Qthai); | |
1624 | SUBRANGE (25, Qlao); | |
1625 | SUBRANGE (26, Qgeorgian); | |
1626 | ||
1627 | SUBRANGE (48, Qcjk_misc); | |
1628 | SUBRANGE (51, Qbopomofo); | |
1629 | SUBRANGE (54, Qkanbun); /* Is this right? */ | |
1630 | SUBRANGE (56, Qhangul); | |
1631 | ||
1632 | SUBRANGE (59, Qhan); /* There are others, but this is the main one. */ | |
1633 | SUBRANGE (59, Qideographic_description); /* Windows lumps this in */ | |
1634 | ||
1635 | SUBRANGE (70, Qtibetan); | |
1636 | SUBRANGE (71, Qsyriac); | |
1637 | SUBRANGE (72, Qthaana); | |
1638 | SUBRANGE (73, Qsinhala); | |
1639 | SUBRANGE (74, Qmyanmar); | |
1640 | SUBRANGE (75, Qethiopic); | |
1641 | SUBRANGE (76, Qcherokee); | |
1642 | SUBRANGE (77, Qcanadian_aboriginal); | |
1643 | SUBRANGE (78, Qogham); | |
1644 | SUBRANGE (79, Qrunic); | |
1645 | SUBRANGE (80, Qkhmer); | |
1646 | SUBRANGE (81, Qmongolian); | |
1647 | SUBRANGE (82, Qbraille); | |
1648 | SUBRANGE (83, Qyi); | |
1649 | ||
1650 | SUBRANGE (88, Qbyzantine_musical_symbol); | |
1651 | SUBRANGE (88, Qmusical_symbol); /* Windows doesn't distinguish these. */ | |
1652 | ||
1653 | SUBRANGE (89, Qmathematical); | |
1654 | ||
1655 | /* Match either katakana or hiragana for kana. */ | |
1656 | MASK_ANY (0, 0x00060000, 0, 0, Qkana); | |
1657 | ||
1658 | /* There isn't really a main symbol range, so include symbol if any | |
1659 | relevant range is set. */ | |
1660 | MASK_ANY (0x8000000, 0x0000FFFF, 0, 0, Qsymbol); | |
1661 | ||
1662 | #undef SUBRANGE | |
1663 | #undef MASK_ANY | |
1664 | ||
1665 | return supported; | |
f7a84cb4 JR |
1666 | } |
1667 | ||
67997c79 JR |
1668 | /* Generate a full name for a Windows font. |
1669 | The full name is in fcname format, with weight, slant and antialiasing | |
1670 | specified if they are not "normal". */ | |
1671 | static int | |
1672 | w32font_full_name (font, font_obj, pixel_size, name, nbytes) | |
1673 | LOGFONT * font; | |
1674 | Lisp_Object font_obj; | |
1675 | int pixel_size; | |
1676 | char *name; | |
1677 | int nbytes; | |
1678 | { | |
a823468b | 1679 | int len, height, outline; |
67997c79 JR |
1680 | char *p; |
1681 | Lisp_Object antialiasing, weight = Qnil; | |
1682 | ||
a823468b JR |
1683 | len = strlen (font->lfFaceName); |
1684 | ||
1685 | outline = EQ (AREF (font_obj, FONT_FOUNDRY_INDEX), Qoutline); | |
1686 | ||
1687 | /* Represent size of scalable fonts by point size. But use pixelsize for | |
1688 | raster fonts to indicate that they are exactly that size. */ | |
1689 | if (outline) | |
1690 | len += 11; /* -SIZE */ | |
1691 | else | |
1692 | len = strlen (font->lfFaceName) + 21; | |
67997c79 JR |
1693 | |
1694 | if (font->lfItalic) | |
1695 | len += 7; /* :italic */ | |
1696 | ||
1697 | if (font->lfWeight && font->lfWeight != FW_NORMAL) | |
1698 | { | |
1699 | weight = font_symbolic_weight (font_obj); | |
1700 | len += 8 + SBYTES (SYMBOL_NAME (weight)); /* :weight=NAME */ | |
1701 | } | |
1702 | ||
1703 | antialiasing = lispy_antialias_type (font->lfQuality); | |
1704 | if (! NILP (antialiasing)) | |
1705 | len += 11 + SBYTES (SYMBOL_NAME (antialiasing)); /* :antialias=NAME */ | |
1706 | ||
1707 | /* Check that the buffer is big enough */ | |
1708 | if (len > nbytes) | |
1709 | return -1; | |
1710 | ||
1711 | p = name; | |
1712 | p += sprintf (p, "%s", font->lfFaceName); | |
1713 | ||
a823468b JR |
1714 | height = font->lfHeight ? eabs (font->lfHeight) : pixel_size; |
1715 | ||
1716 | if (height > 0) | |
1717 | { | |
1718 | if (outline) | |
1719 | { | |
1720 | float pointsize = height * 72.0 / one_w32_display_info.resy; | |
7145be81 JR |
1721 | /* Round to nearest half point. floor is used, since round is not |
1722 | supported in MS library. */ | |
1723 | pointsize = floor (pointsize * 2 + 0.5) / 2; | |
a823468b JR |
1724 | p += sprintf (p, "-%1.1f", pointsize); |
1725 | } | |
1726 | else | |
1727 | p += sprintf (p, ":pixelsize=%d", height); | |
1728 | } | |
67997c79 JR |
1729 | |
1730 | if (font->lfItalic) | |
1731 | p += sprintf (p, ":italic"); | |
1732 | ||
1733 | if (SYMBOLP (weight) && ! NILP (weight)) | |
1734 | p += sprintf (p, ":weight=%s", SDATA (SYMBOL_NAME (weight))); | |
1735 | ||
1736 | if (SYMBOLP (antialiasing) && ! NILP (antialiasing)) | |
1737 | p += sprintf (p, ":antialias=%s", SDATA (SYMBOL_NAME (antialiasing))); | |
1738 | ||
1739 | return (p - name); | |
1740 | } | |
f7a84cb4 | 1741 | |
34fd2d28 JR |
1742 | |
1743 | static void | |
54efdcd1 | 1744 | recompute_cached_metrics (dc, w32_font) |
34fd2d28 | 1745 | HDC dc; |
54efdcd1 | 1746 | struct w32font_info *w32_font; |
34fd2d28 JR |
1747 | { |
1748 | GLYPHMETRICS gm; | |
1749 | MAT2 transform; | |
54efdcd1 | 1750 | unsigned int i; |
34fd2d28 JR |
1751 | |
1752 | bzero (&transform, sizeof (transform)); | |
1753 | transform.eM11.value = 1; | |
1754 | transform.eM22.value = 1; | |
1755 | ||
1756 | for (i = 0; i < 128; i++) | |
1757 | { | |
1758 | struct font_metrics* char_metric = &w32_font->ascii_metrics[i]; | |
54efdcd1 JR |
1759 | unsigned int options = GGO_METRICS; |
1760 | if (w32_font->glyph_idx) | |
1761 | options |= GGO_GLYPH_INDEX; | |
34fd2d28 | 1762 | |
54efdcd1 JR |
1763 | if (GetGlyphOutlineW (dc, i, options, &gm, 0, NULL, &transform) |
1764 | != GDI_ERROR) | |
34fd2d28 JR |
1765 | { |
1766 | char_metric->lbearing = -gm.gmptGlyphOrigin.x; | |
1767 | char_metric->rbearing = gm.gmBlackBoxX + gm.gmptGlyphOrigin.x; | |
1768 | char_metric->width = gm.gmCellIncX; | |
1769 | char_metric->ascent = -gm.gmptGlyphOrigin.y; | |
1770 | char_metric->descent = gm.gmBlackBoxY + gm.gmptGlyphOrigin.y; | |
1771 | } | |
1772 | else | |
1773 | char_metric->width = 0; | |
1774 | } | |
1775 | } | |
1776 | ||
f7a84cb4 JR |
1777 | struct font_driver w32font_driver = |
1778 | { | |
8eac0c84 | 1779 | 0, /* Qgdi */ |
f7a84cb4 JR |
1780 | w32font_get_cache, |
1781 | w32font_list, | |
1782 | w32font_match, | |
1783 | w32font_list_family, | |
1784 | NULL, /* free_entity */ | |
1785 | w32font_open, | |
1786 | w32font_close, | |
1787 | NULL, /* prepare_face */ | |
1788 | NULL, /* done_face */ | |
1789 | w32font_has_char, | |
1790 | w32font_encode_char, | |
1791 | w32font_text_extents, | |
1792 | w32font_draw, | |
1793 | NULL, /* get_bitmap */ | |
1794 | NULL, /* free_bitmap */ | |
1795 | NULL, /* get_outline */ | |
1796 | NULL, /* free_outline */ | |
1797 | NULL, /* anchor_point */ | |
1798 | NULL, /* otf_capability */ | |
5b0c3446 JR |
1799 | NULL, /* otf_drive */ |
1800 | NULL, /* start_for_frame */ | |
1801 | NULL, /* end_for_frame */ | |
1802 | NULL /* shape */ | |
f7a84cb4 JR |
1803 | }; |
1804 | ||
f7a84cb4 JR |
1805 | |
1806 | /* Initialize state that does not change between invocations. This is only | |
1807 | called when Emacs is dumped. */ | |
20399669 JR |
1808 | void |
1809 | syms_of_w32font () | |
f7a84cb4 | 1810 | { |
8eac0c84 | 1811 | DEFSYM (Qgdi, "gdi"); |
34fd2d28 JR |
1812 | DEFSYM (Quniscribe, "uniscribe"); |
1813 | DEFSYM (QCformat, ":format"); | |
d205d43b JR |
1814 | |
1815 | /* Generic font families. */ | |
1816 | DEFSYM (Qmonospace, "monospace"); | |
1817 | DEFSYM (Qserif, "serif"); | |
9e1a2995 | 1818 | DEFSYM (Qsansserif, "sansserif"); |
f7a84cb4 | 1819 | DEFSYM (Qscript, "script"); |
d205d43b JR |
1820 | DEFSYM (Qdecorative, "decorative"); |
1821 | /* Aliases. */ | |
9e1a2995 | 1822 | DEFSYM (Qsans_serif, "sans_serif"); |
d205d43b JR |
1823 | DEFSYM (Qsans, "sans"); |
1824 | DEFSYM (Qmono, "mono"); | |
1825 | ||
1826 | /* Fake foundries. */ | |
1827 | DEFSYM (Qraster, "raster"); | |
1828 | DEFSYM (Qoutline, "outline"); | |
f7a84cb4 | 1829 | DEFSYM (Qunknown, "unknown"); |
d205d43b | 1830 | |
91583281 JR |
1831 | /* Antialiasing. */ |
1832 | DEFSYM (Qstandard, "standard"); | |
1833 | DEFSYM (Qsubpixel, "subpixel"); | |
1834 | DEFSYM (Qnatural, "natural"); | |
d205d43b JR |
1835 | |
1836 | /* Scripts */ | |
1837 | DEFSYM (Qlatin, "latin"); | |
1838 | DEFSYM (Qgreek, "greek"); | |
1839 | DEFSYM (Qcoptic, "coptic"); | |
1840 | DEFSYM (Qcyrillic, "cyrillic"); | |
1841 | DEFSYM (Qarmenian, "armenian"); | |
1842 | DEFSYM (Qhebrew, "hebrew"); | |
1843 | DEFSYM (Qarabic, "arabic"); | |
1844 | DEFSYM (Qsyriac, "syriac"); | |
1845 | DEFSYM (Qnko, "nko"); | |
1846 | DEFSYM (Qthaana, "thaana"); | |
1847 | DEFSYM (Qdevanagari, "devanagari"); | |
1848 | DEFSYM (Qbengali, "bengali"); | |
1849 | DEFSYM (Qgurmukhi, "gurmukhi"); | |
1850 | DEFSYM (Qgujarati, "gujarati"); | |
1851 | DEFSYM (Qoriya, "oriya"); | |
1852 | DEFSYM (Qtamil, "tamil"); | |
1853 | DEFSYM (Qtelugu, "telugu"); | |
1854 | DEFSYM (Qkannada, "kannada"); | |
1855 | DEFSYM (Qmalayalam, "malayalam"); | |
1856 | DEFSYM (Qsinhala, "sinhala"); | |
1857 | DEFSYM (Qthai, "thai"); | |
1858 | DEFSYM (Qlao, "lao"); | |
1859 | DEFSYM (Qtibetan, "tibetan"); | |
1860 | DEFSYM (Qmyanmar, "myanmar"); | |
1861 | DEFSYM (Qgeorgian, "georgian"); | |
1862 | DEFSYM (Qhangul, "hangul"); | |
1863 | DEFSYM (Qethiopic, "ethiopic"); | |
1864 | DEFSYM (Qcherokee, "cherokee"); | |
1865 | DEFSYM (Qcanadian_aboriginal, "canadian-aboriginal"); | |
1866 | DEFSYM (Qogham, "ogham"); | |
1867 | DEFSYM (Qrunic, "runic"); | |
1868 | DEFSYM (Qkhmer, "khmer"); | |
1869 | DEFSYM (Qmongolian, "mongolian"); | |
1870 | DEFSYM (Qsymbol, "symbol"); | |
1871 | DEFSYM (Qbraille, "braille"); | |
1872 | DEFSYM (Qhan, "han"); | |
1873 | DEFSYM (Qideographic_description, "ideographic-description"); | |
1874 | DEFSYM (Qcjk_misc, "cjk-misc"); | |
1875 | DEFSYM (Qkana, "kana"); | |
1876 | DEFSYM (Qbopomofo, "bopomofo"); | |
1877 | DEFSYM (Qkanbun, "kanbun"); | |
1878 | DEFSYM (Qyi, "yi"); | |
1879 | DEFSYM (Qbyzantine_musical_symbol, "byzantine-musical-symbol"); | |
1880 | DEFSYM (Qmusical_symbol, "musical-symbol"); | |
1881 | DEFSYM (Qmathematical, "mathematical"); | |
1882 | ||
8eac0c84 | 1883 | w32font_driver.type = Qgdi; |
f7a84cb4 JR |
1884 | register_font_driver (&w32font_driver, NULL); |
1885 | } | |
c6900278 | 1886 | #endif /* USE_FONT_BACKEND */ |
6d8c85b5 MB |
1887 | |
1888 | /* arch-tag: 65b8a3cd-46aa-4c0d-a1f3-99e75b9c07ee | |
1889 | (do not change this comment) */ |