Commit | Line | Data |
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637fa988 | 1 | /* Functions for handle font changes dynamically. |
114f9c96 | 2 | Copyright (C) 2009, 2010 |
637fa988 JD |
3 | 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 | #include "config.h" | |
21 | #include <setjmp.h> | |
22 | #include <fcntl.h> | |
23 | #include "lisp.h" | |
24 | #include "xterm.h" | |
25 | #include "xsettings.h" | |
26 | #include "frame.h" | |
b87dd913 | 27 | #include "keyboard.h" |
637fa988 JD |
28 | #include "blockinput.h" |
29 | #include "termhooks.h" | |
30 | #include "termopts.h" | |
31 | ||
32 | #include <X11/Xproto.h> | |
33 | ||
34 | #ifdef HAVE_GCONF | |
35 | #include <gconf/gconf-client.h> | |
36 | #endif | |
37 | #ifdef HAVE_XFT | |
38 | #include <X11/Xft/Xft.h> | |
39 | #endif | |
40 | ||
41 | static char *current_mono_font; | |
99852628 | 42 | static char *current_font; |
637fa988 | 43 | static struct x_display_info *first_dpyinfo; |
f904c0f9 JD |
44 | static Lisp_Object Qmonospace_font_name, Qfont_name, Qfont_render, |
45 | Qtool_bar_style; | |
dfb3c4c6 | 46 | static int use_system_font; |
67477f30 | 47 | static Lisp_Object Vxft_settings; |
f904c0f9 | 48 | static Lisp_Object current_tool_bar_style; |
637fa988 JD |
49 | |
50 | #ifdef HAVE_GCONF | |
51 | static GConfClient *gconf_client; | |
52 | #endif | |
53 | ||
54 | ||
55 | static void | |
f904c0f9 | 56 | store_config_changed_event (arg, display_name) |
637fa988 JD |
57 | Lisp_Object arg; |
58 | Lisp_Object display_name; | |
59 | { | |
60 | struct input_event event; | |
61 | EVENT_INIT (event); | |
62 | event.kind = CONFIG_CHANGED_EVENT; | |
63 | event.frame_or_window = display_name; | |
64 | event.arg = arg; | |
65 | kbd_buffer_store_event (&event); | |
66 | } | |
67 | ||
f904c0f9 JD |
68 | #define XSETTINGS_FONT_NAME "Gtk/FontName" |
69 | #define XSETTINGS_TOOL_BAR_STYLE "Gtk/ToolbarStyle" | |
0269ef77 | 70 | |
637fa988 JD |
71 | #ifdef HAVE_GCONF |
72 | ||
99852628 JD |
73 | #define SYSTEM_MONO_FONT "/desktop/gnome/interface/monospace_font_name" |
74 | #define SYSTEM_FONT "/desktop/gnome/interface/font_name" | |
637fa988 | 75 | |
f904c0f9 JD |
76 | enum { |
77 | SEEN_AA = 0x01, | |
78 | SEEN_HINTING = 0x02, | |
79 | SEEN_RGBA = 0x04, | |
80 | SEEN_LCDFILTER = 0x08, | |
81 | SEEN_HINTSTYLE = 0x10, | |
82 | SEEN_DPI = 0x20, | |
83 | SEEN_FONT = 0x40, | |
84 | SEEN_TB_STYLE = 0x80, | |
85 | }; | |
86 | struct xsettings | |
87 | { | |
88 | #ifdef HAVE_XFT | |
89 | FcBool aa, hinting; | |
90 | int rgba, lcdfilter, hintstyle; | |
91 | double dpi; | |
92 | #endif | |
93 | ||
94 | char *font; | |
95 | char *tb_style; | |
96 | ||
97 | unsigned seen; | |
98 | }; | |
99 | ||
637fa988 JD |
100 | /* Callback called when something changed in GConf that we care about, |
101 | that is SYSTEM_MONO_FONT. */ | |
102 | ||
103 | static void | |
104 | something_changedCB (client, cnxn_id, entry, user_data) | |
105 | GConfClient *client; | |
106 | guint cnxn_id; | |
107 | GConfEntry *entry; | |
108 | gpointer user_data; | |
109 | { | |
110 | GConfValue *v = gconf_entry_get_value (entry); | |
111 | ||
112 | if (!v) return; | |
113 | if (v->type == GCONF_VALUE_STRING) | |
114 | { | |
115 | const char *value = gconf_value_get_string (v); | |
116 | int i; | |
117 | if (current_mono_font != NULL && strcmp (value, current_mono_font) == 0) | |
872870b2 | 118 | return; /* No change. */ |
637fa988 JD |
119 | |
120 | xfree (current_mono_font); | |
121 | current_mono_font = xstrdup (value); | |
122 | } | |
123 | ||
124 | ||
125 | if (first_dpyinfo != NULL) | |
126 | { | |
127 | /* Check if display still open */ | |
128 | struct x_display_info *dpyinfo; | |
129 | int found = 0; | |
130 | for (dpyinfo = x_display_list; !found && dpyinfo; dpyinfo = dpyinfo->next) | |
131 | found = dpyinfo == first_dpyinfo; | |
132 | ||
dfb3c4c6 | 133 | if (found && use_system_font) |
f904c0f9 JD |
134 | store_config_changed_event (Qmonospace_font_name, |
135 | XCAR (first_dpyinfo->name_list_element)); | |
637fa988 JD |
136 | } |
137 | } | |
138 | #endif /* HAVE_GCONF */ | |
139 | ||
140 | #ifdef HAVE_XFT | |
141 | ||
21050de1 JD |
142 | /* Older fontconfig versions don't have FC_LCD_*. */ |
143 | #ifndef FC_LCD_NONE | |
144 | #define FC_LCD_NONE 0 | |
145 | #endif | |
146 | #ifndef FC_LCD_DEFAULT | |
147 | #define FC_LCD_DEFAULT 1 | |
148 | #endif | |
149 | #ifndef FC_LCD_FILTER | |
150 | #define FC_LCD_FILTER "lcdfilter" | |
151 | #endif | |
152 | ||
f904c0f9 JD |
153 | #endif /* HAVE_XFT */ |
154 | ||
637fa988 JD |
155 | /* Find the window that contains the XSETTINGS property values. */ |
156 | ||
157 | static void | |
158 | get_prop_window (dpyinfo) | |
159 | struct x_display_info *dpyinfo; | |
160 | { | |
161 | Display *dpy = dpyinfo->display; | |
162 | ||
163 | XGrabServer (dpy); | |
164 | dpyinfo->xsettings_window = XGetSelectionOwner (dpy, | |
165 | dpyinfo->Xatom_xsettings_sel); | |
166 | if (dpyinfo->xsettings_window != None) | |
167 | /* Select events so we can detect if window is deleted or if settings | |
168 | are changed. */ | |
169 | XSelectInput (dpy, dpyinfo->xsettings_window, | |
170 | PropertyChangeMask|StructureNotifyMask); | |
171 | ||
172 | XUngrabServer (dpy); | |
173 | } | |
174 | ||
637fa988 JD |
175 | #define SWAP32(nr) (((nr) << 24) | (((nr) << 8) & 0xff0000) \ |
176 | | (((nr) >> 8) & 0xff00) | ((nr) >> 24)) | |
177 | #define SWAP16(nr) (((nr) << 8) | ((nr) >> 8)) | |
178 | #define PAD(nr) (((nr) + 3) & ~3) | |
179 | ||
180 | /* Parse xsettings and extract those that deal with Xft. | |
181 | See http://freedesktop.org/wiki/Specifications/XSettingsRegistry | |
182 | and http://standards.freedesktop.org/xsettings-spec/xsettings-spec-0.5.html. | |
183 | ||
184 | Layout of prop. First is a header: | |
185 | ||
186 | bytes type what | |
187 | ------------------------------------ | |
188 | 1 CARD8 byte-order | |
189 | 3 unused | |
190 | 4 CARD32 SERIAL | |
191 | 4 CARD32 N_SETTINGS | |
192 | ||
193 | Then N_SETTINGS records, with header: | |
194 | ||
195 | bytes type what | |
196 | ------------------------------------ | |
197 | 1 SETTING_TYPE type (0 = integer, 1 = string, 2 RGB color). | |
198 | 1 unused | |
199 | 2 CARD16 n == name-length | |
200 | n STRING8 name | |
201 | p unused, p=pad_to_even_4(n) | |
202 | 4 CARD32 last-change-serial | |
203 | ||
204 | and then the value, For string: | |
205 | ||
206 | bytes type what | |
207 | ------------------------------------ | |
208 | 4 CARD32 n = value-length | |
209 | n STRING8 value | |
210 | p unused, p=pad_to_even_4(n) | |
211 | ||
212 | For integer: | |
213 | ||
214 | bytes type what | |
215 | ------------------------------------ | |
216 | 4 INT32 value | |
217 | ||
218 | For RGB color: | |
219 | ||
220 | bytes type what | |
221 | ------------------------------------ | |
222 | 2 CARD16 red | |
223 | 2 CARD16 blue | |
224 | 2 CARD16 green | |
225 | 2 CARD16 alpha | |
226 | ||
3c055b77 | 227 | Returns non-zero if some Xft settings was seen, zero otherwise. |
637fa988 JD |
228 | */ |
229 | ||
230 | static int | |
f904c0f9 | 231 | parse_settings (prop, bytes, settings) |
637fa988 JD |
232 | unsigned char *prop; |
233 | unsigned long bytes; | |
234 | struct xsettings *settings; | |
235 | { | |
236 | Lisp_Object byteorder = Fbyteorder (); | |
237 | int my_bo = XFASTINT (byteorder) == 'B' ? MSBFirst : LSBFirst; | |
238 | int that_bo = prop[0]; | |
239 | CARD32 n_settings; | |
240 | int bytes_parsed = 0; | |
241 | int settings_seen = 0; | |
242 | int i = 0; | |
243 | ||
244 | /* First 4 bytes is a serial number, skip that. */ | |
245 | ||
246 | if (bytes < 12) return BadLength; | |
247 | memcpy (&n_settings, prop+8, 4); | |
248 | if (my_bo != that_bo) n_settings = SWAP32 (n_settings); | |
249 | bytes_parsed = 12; | |
250 | ||
251 | memset (settings, 0, sizeof (*settings)); | |
252 | ||
99852628 | 253 | while (bytes_parsed+4 < bytes && settings_seen < 7 |
637fa988 JD |
254 | && i < n_settings) |
255 | { | |
256 | int type = prop[bytes_parsed++]; | |
257 | CARD16 nlen; | |
258 | CARD32 vlen, ival = 0; | |
259 | char name[128]; /* The names we are looking for are not this long. */ | |
260 | char sval[128]; /* The values we are looking for are not this long. */ | |
99852628 | 261 | int want_this; |
637fa988 JD |
262 | int to_cpy; |
263 | ||
264 | sval[0] = '\0'; | |
265 | ++i; | |
266 | ++bytes_parsed; /* Padding */ | |
267 | ||
268 | memcpy (&nlen, prop+bytes_parsed, 2); | |
269 | bytes_parsed += 2; | |
270 | if (my_bo != that_bo) nlen = SWAP16 (nlen); | |
271 | if (bytes_parsed+nlen > bytes) return BadLength; | |
272 | to_cpy = nlen > 127 ? 127 : nlen; | |
273 | memcpy (name, prop+bytes_parsed, to_cpy); | |
274 | name[to_cpy] = '\0'; | |
275 | ||
276 | bytes_parsed += nlen; | |
277 | bytes_parsed = PAD (bytes_parsed); | |
278 | ||
279 | bytes_parsed += 4; /* Skip serial for this value */ | |
280 | if (bytes_parsed > bytes) return BadLength; | |
281 | ||
f904c0f9 JD |
282 | want_this = |
283 | #ifdef HAVE_XFT | |
284 | (nlen > 6 && strncmp (name, "Xft/", 4) == 0) | |
285 | || | |
286 | #endif | |
287 | (strcmp (XSETTINGS_FONT_NAME, name) == 0) | |
288 | || (strcmp (XSETTINGS_TOOL_BAR_STYLE, name) == 0); | |
637fa988 JD |
289 | |
290 | switch (type) | |
291 | { | |
292 | case 0: /* Integer */ | |
293 | if (bytes_parsed+4 > bytes) return BadLength; | |
99852628 | 294 | if (want_this) |
637fa988 JD |
295 | { |
296 | memcpy (&ival, prop+bytes_parsed, 4); | |
297 | if (my_bo != that_bo) ival = SWAP32 (ival); | |
298 | } | |
299 | bytes_parsed += 4; | |
300 | break; | |
301 | ||
302 | case 1: /* String */ | |
303 | if (bytes_parsed+4 > bytes) return BadLength; | |
304 | memcpy (&vlen, prop+bytes_parsed, 4); | |
305 | bytes_parsed += 4; | |
306 | if (my_bo != that_bo) vlen = SWAP32 (vlen); | |
99852628 | 307 | if (want_this) |
637fa988 JD |
308 | { |
309 | to_cpy = vlen > 127 ? 127 : vlen; | |
310 | memcpy (sval, prop+bytes_parsed, to_cpy); | |
311 | sval[to_cpy] = '\0'; | |
312 | } | |
313 | bytes_parsed += vlen; | |
314 | bytes_parsed = PAD (bytes_parsed); | |
315 | break; | |
316 | ||
317 | case 2: /* RGB value */ | |
318 | /* No need to parse this */ | |
319 | if (bytes_parsed+8 > bytes) return BadLength; | |
320 | bytes_parsed += 8; /* 4 values (r, b, g, alpha), 2 bytes each. */ | |
321 | break; | |
322 | ||
323 | default: /* Parse Error */ | |
324 | return BadValue; | |
325 | } | |
326 | ||
99852628 | 327 | if (want_this) |
637fa988 JD |
328 | { |
329 | ++settings_seen; | |
f904c0f9 JD |
330 | if (strcmp (name, XSETTINGS_FONT_NAME) == 0) |
331 | { | |
332 | settings->font = xstrdup (sval); | |
333 | settings->seen |= SEEN_FONT; | |
334 | } | |
335 | else if (strcmp (name, XSETTINGS_TOOL_BAR_STYLE) == 0) | |
336 | { | |
337 | settings->tb_style = xstrdup (sval); | |
338 | settings->seen |= SEEN_TB_STYLE; | |
339 | } | |
340 | #ifdef HAVE_XFT | |
341 | else if (strcmp (name, "Xft/Antialias") == 0) | |
3c055b77 JD |
342 | { |
343 | settings->seen |= SEEN_AA; | |
344 | settings->aa = ival != 0; | |
345 | } | |
637fa988 | 346 | else if (strcmp (name, "Xft/Hinting") == 0) |
3c055b77 JD |
347 | { |
348 | settings->seen |= SEEN_HINTING; | |
349 | settings->hinting = ival != 0; | |
350 | } | |
637fa988 JD |
351 | else if (strcmp (name, "Xft/HintStyle") == 0) |
352 | { | |
3c055b77 | 353 | settings->seen |= SEEN_HINTSTYLE; |
637fa988 JD |
354 | if (strcmp (sval, "hintnone") == 0) |
355 | settings->hintstyle = FC_HINT_NONE; | |
356 | else if (strcmp (sval, "hintslight") == 0) | |
357 | settings->hintstyle = FC_HINT_SLIGHT; | |
358 | else if (strcmp (sval, "hintmedium") == 0) | |
359 | settings->hintstyle = FC_HINT_MEDIUM; | |
360 | else if (strcmp (sval, "hintfull") == 0) | |
361 | settings->hintstyle = FC_HINT_FULL; | |
3c055b77 JD |
362 | else |
363 | settings->seen &= ~SEEN_HINTSTYLE; | |
637fa988 JD |
364 | } |
365 | else if (strcmp (name, "Xft/RGBA") == 0) | |
366 | { | |
3c055b77 | 367 | settings->seen |= SEEN_RGBA; |
637fa988 JD |
368 | if (strcmp (sval, "none") == 0) |
369 | settings->rgba = FC_RGBA_NONE; | |
370 | else if (strcmp (sval, "rgb") == 0) | |
371 | settings->rgba = FC_RGBA_RGB; | |
372 | else if (strcmp (sval, "bgr") == 0) | |
373 | settings->rgba = FC_RGBA_BGR; | |
374 | else if (strcmp (sval, "vrgb") == 0) | |
375 | settings->rgba = FC_RGBA_VRGB; | |
376 | else if (strcmp (sval, "vbgr") == 0) | |
377 | settings->rgba = FC_RGBA_VBGR; | |
3c055b77 JD |
378 | else |
379 | settings->seen &= ~SEEN_RGBA; | |
637fa988 JD |
380 | } |
381 | else if (strcmp (name, "Xft/DPI") == 0) | |
3c055b77 JD |
382 | { |
383 | settings->seen |= SEEN_DPI; | |
384 | settings->dpi = (double)ival/1024.0; | |
385 | } | |
637fa988 JD |
386 | else if (strcmp (name, "Xft/lcdfilter") == 0) |
387 | { | |
3c055b77 | 388 | settings->seen |= SEEN_LCDFILTER; |
637fa988 JD |
389 | if (strcmp (sval, "none") == 0) |
390 | settings->lcdfilter = FC_LCD_NONE; | |
391 | else if (strcmp (sval, "lcddefault") == 0) | |
392 | settings->lcdfilter = FC_LCD_DEFAULT; | |
3c055b77 JD |
393 | else |
394 | settings->seen &= ~SEEN_LCDFILTER; | |
637fa988 | 395 | } |
f904c0f9 | 396 | #endif /* HAVE_XFT */ |
637fa988 JD |
397 | } |
398 | } | |
399 | ||
3c055b77 | 400 | return settings_seen; |
637fa988 JD |
401 | } |
402 | ||
403 | static int | |
f904c0f9 | 404 | read_settings (dpyinfo, settings) |
637fa988 JD |
405 | struct x_display_info *dpyinfo; |
406 | struct xsettings *settings; | |
407 | { | |
408 | long long_len; | |
409 | Atom act_type; | |
410 | int act_form; | |
411 | unsigned long nitems, bytes_after; | |
412 | unsigned char *prop = NULL; | |
413 | Display *dpy = dpyinfo->display; | |
414 | int rc; | |
415 | ||
416 | x_catch_errors (dpy); | |
417 | rc = XGetWindowProperty (dpy, | |
418 | dpyinfo->xsettings_window, | |
419 | dpyinfo->Xatom_xsettings_prop, | |
420 | 0, LONG_MAX, False, AnyPropertyType, | |
421 | &act_type, &act_form, &nitems, &bytes_after, | |
422 | &prop); | |
423 | ||
424 | if (rc == Success && prop != NULL && act_form == 8 && nitems > 0 | |
425 | && act_type == dpyinfo->Xatom_xsettings_prop) | |
f904c0f9 | 426 | rc = parse_settings (prop, nitems, settings); |
637fa988 JD |
427 | |
428 | XFree (prop); | |
429 | ||
430 | x_uncatch_errors (); | |
431 | ||
3c055b77 | 432 | return rc != 0; |
637fa988 JD |
433 | } |
434 | ||
581e51e8 | 435 | |
637fa988 | 436 | static void |
f904c0f9 | 437 | apply_xft_settings (dpyinfo, send_event_p, settings) |
637fa988 JD |
438 | struct x_display_info *dpyinfo; |
439 | int send_event_p; | |
f904c0f9 | 440 | struct xsettings *settings; |
637fa988 | 441 | { |
f904c0f9 | 442 | #ifdef HAVE_XFT |
637fa988 | 443 | FcPattern *pat; |
f904c0f9 | 444 | struct xsettings oldsettings; |
637fa988 | 445 | int changed = 0; |
67477f30 | 446 | char buf[256]; |
637fa988 | 447 | |
637fa988 | 448 | memset (&oldsettings, 0, sizeof (oldsettings)); |
67477f30 | 449 | buf[0] = '\0'; |
637fa988 JD |
450 | pat = FcPatternCreate (); |
451 | XftDefaultSubstitute (dpyinfo->display, | |
452 | XScreenNumberOfScreen (dpyinfo->screen), | |
453 | pat); | |
454 | FcPatternGetBool (pat, FC_ANTIALIAS, 0, &oldsettings.aa); | |
455 | FcPatternGetBool (pat, FC_HINTING, 0, &oldsettings.hinting); | |
456 | FcPatternGetInteger (pat, FC_HINT_STYLE, 0, &oldsettings.hintstyle); | |
457 | FcPatternGetInteger (pat, FC_LCD_FILTER, 0, &oldsettings.lcdfilter); | |
458 | FcPatternGetInteger (pat, FC_RGBA, 0, &oldsettings.rgba); | |
459 | FcPatternGetDouble (pat, FC_DPI, 0, &oldsettings.dpi); | |
460 | ||
f904c0f9 | 461 | if ((settings->seen & SEEN_AA) != 0 && oldsettings.aa != settings->aa) |
637fa988 JD |
462 | { |
463 | FcPatternDel (pat, FC_ANTIALIAS); | |
f904c0f9 | 464 | FcPatternAddBool (pat, FC_ANTIALIAS, settings->aa); |
637fa988 | 465 | ++changed; |
f904c0f9 | 466 | oldsettings.aa = settings->aa; |
637fa988 | 467 | } |
67477f30 JD |
468 | sprintf (buf, "Antialias: %d", oldsettings.aa); |
469 | ||
f904c0f9 JD |
470 | if ((settings->seen & SEEN_HINTING) != 0 |
471 | && oldsettings.hinting != settings->hinting) | |
637fa988 JD |
472 | { |
473 | FcPatternDel (pat, FC_HINTING); | |
f904c0f9 | 474 | FcPatternAddBool (pat, FC_HINTING, settings->hinting); |
637fa988 | 475 | ++changed; |
f904c0f9 | 476 | oldsettings.hinting = settings->hinting; |
637fa988 | 477 | } |
67477f30 JD |
478 | if (strlen (buf) > 0) strcat (buf, ", "); |
479 | sprintf (buf+strlen (buf), "Hinting: %d", oldsettings.hinting); | |
f904c0f9 | 480 | if ((settings->seen & SEEN_RGBA) != 0 && oldsettings.rgba != settings->rgba) |
637fa988 JD |
481 | { |
482 | FcPatternDel (pat, FC_RGBA); | |
f904c0f9 JD |
483 | FcPatternAddInteger (pat, FC_RGBA, settings->rgba); |
484 | oldsettings.rgba = settings->rgba; | |
637fa988 JD |
485 | ++changed; |
486 | } | |
67477f30 JD |
487 | if (strlen (buf) > 0) strcat (buf, ", "); |
488 | sprintf (buf+strlen (buf), "RGBA: %d", oldsettings.rgba); | |
489 | ||
a6eb20d8 | 490 | /* Older fontconfig versions don't have FC_LCD_FILTER. */ |
f904c0f9 JD |
491 | if ((settings->seen & SEEN_LCDFILTER) != 0 |
492 | && oldsettings.lcdfilter != settings->lcdfilter) | |
637fa988 JD |
493 | { |
494 | FcPatternDel (pat, FC_LCD_FILTER); | |
f904c0f9 | 495 | FcPatternAddInteger (pat, FC_LCD_FILTER, settings->lcdfilter); |
637fa988 | 496 | ++changed; |
f904c0f9 | 497 | oldsettings.lcdfilter = settings->lcdfilter; |
637fa988 | 498 | } |
67477f30 JD |
499 | if (strlen (buf) > 0) strcat (buf, ", "); |
500 | sprintf (buf+strlen (buf), "LCDFilter: %d", oldsettings.lcdfilter); | |
501 | ||
f904c0f9 JD |
502 | if ((settings->seen & SEEN_HINTSTYLE) != 0 |
503 | && oldsettings.hintstyle != settings->hintstyle) | |
637fa988 JD |
504 | { |
505 | FcPatternDel (pat, FC_HINT_STYLE); | |
f904c0f9 | 506 | FcPatternAddInteger (pat, FC_HINT_STYLE, settings->hintstyle); |
637fa988 | 507 | ++changed; |
f904c0f9 | 508 | oldsettings.hintstyle = settings->hintstyle; |
637fa988 | 509 | } |
67477f30 JD |
510 | if (strlen (buf) > 0) strcat (buf, ", "); |
511 | sprintf (buf+strlen (buf), "Hintstyle: %d", oldsettings.hintstyle); | |
512 | ||
f904c0f9 JD |
513 | if ((settings->seen & SEEN_DPI) != 0 && oldsettings.dpi != settings->dpi |
514 | && settings->dpi > 0) | |
637fa988 JD |
515 | { |
516 | Lisp_Object frame, tail; | |
517 | ||
518 | FcPatternDel (pat, FC_DPI); | |
f904c0f9 | 519 | FcPatternAddDouble (pat, FC_DPI, settings->dpi); |
637fa988 | 520 | ++changed; |
f904c0f9 | 521 | oldsettings.dpi = settings->dpi; |
67477f30 | 522 | |
637fa988 | 523 | /* Change the DPI on this display and all frames on the display. */ |
f904c0f9 | 524 | dpyinfo->resy = dpyinfo->resx = settings->dpi; |
637fa988 JD |
525 | FOR_EACH_FRAME (tail, frame) |
526 | if (FRAME_X_P (XFRAME (frame)) | |
527 | && FRAME_X_DISPLAY_INFO (XFRAME (frame)) == dpyinfo) | |
f904c0f9 | 528 | XFRAME (frame)->resy = XFRAME (frame)->resx = settings->dpi; |
637fa988 JD |
529 | } |
530 | ||
67477f30 JD |
531 | if (strlen (buf) > 0) strcat (buf, ", "); |
532 | sprintf (buf+strlen (buf), "DPI: %lf", oldsettings.dpi); | |
533 | ||
637fa988 JD |
534 | if (changed) |
535 | { | |
536 | XftDefaultSet (dpyinfo->display, pat); | |
537 | if (send_event_p) | |
f904c0f9 JD |
538 | store_config_changed_event (Qfont_render, |
539 | XCAR (dpyinfo->name_list_element)); | |
67477f30 | 540 | Vxft_settings = make_string (buf, strlen (buf)); |
637fa988 JD |
541 | } |
542 | else | |
543 | FcPatternDestroy (pat); | |
f904c0f9 | 544 | #endif /* HAVE_XFT */ |
637fa988 JD |
545 | } |
546 | ||
f904c0f9 JD |
547 | static void |
548 | read_and_apply_settings (dpyinfo, send_event_p) | |
549 | struct x_display_info *dpyinfo; | |
550 | int send_event_p; | |
551 | { | |
552 | struct xsettings settings; | |
553 | Lisp_Object dpyname = XCAR (dpyinfo->name_list_element); | |
554 | ||
555 | if (!read_settings (dpyinfo, &settings)) | |
556 | return; | |
557 | ||
558 | apply_xft_settings (dpyinfo, True, &settings); | |
559 | if (settings.seen & SEEN_TB_STYLE) | |
560 | { | |
561 | Lisp_Object style = Qnil; | |
562 | if (strcmp (settings.tb_style, "both") == 0) | |
563 | style = Qboth; | |
564 | else if (strcmp (settings.tb_style, "both-horiz") == 0) | |
565 | style = Qboth_horiz; | |
566 | else if (strcmp (settings.tb_style, "icons") == 0) | |
567 | style = Qimage; | |
568 | else if (strcmp (settings.tb_style, "text") == 0) | |
569 | style = Qtext; | |
570 | if (!NILP (style) && !EQ (style, current_tool_bar_style)) | |
571 | { | |
572 | current_tool_bar_style = style; | |
573 | if (send_event_p) | |
574 | store_config_changed_event (Qtool_bar_style, dpyname); | |
575 | } | |
576 | free (settings.tb_style); | |
577 | } | |
578 | ||
579 | if (settings.seen & SEEN_FONT) | |
580 | { | |
581 | if (strcmp (current_font, settings.font) != 0) | |
582 | { | |
583 | free (current_font); | |
584 | current_font = settings.font; | |
585 | if (send_event_p) | |
586 | store_config_changed_event (Qfont_name, dpyname); | |
587 | } | |
588 | else | |
589 | free (settings.font); | |
590 | } | |
591 | } | |
637fa988 JD |
592 | |
593 | void | |
594 | xft_settings_event (dpyinfo, event) | |
595 | struct x_display_info *dpyinfo; | |
596 | XEvent *event; | |
597 | { | |
637fa988 | 598 | int check_window_p = 0; |
f904c0f9 | 599 | int apply_settings = 0; |
637fa988 JD |
600 | |
601 | switch (event->type) | |
602 | { | |
603 | case DestroyNotify: | |
604 | if (dpyinfo->xsettings_window == event->xany.window) | |
605 | check_window_p = 1; | |
606 | break; | |
607 | ||
608 | case ClientMessage: | |
609 | if (event->xclient.message_type == dpyinfo->Xatom_xsettings_mgr | |
610 | && event->xclient.data.l[1] == dpyinfo->Xatom_xsettings_sel | |
611 | && event->xclient.window == dpyinfo->root_window) | |
612 | check_window_p = 1; | |
613 | break; | |
614 | ||
615 | case PropertyNotify: | |
616 | if (event->xproperty.window == dpyinfo->xsettings_window | |
617 | && event->xproperty.state == PropertyNewValue | |
618 | && event->xproperty.atom == dpyinfo->Xatom_xsettings_prop) | |
f904c0f9 | 619 | apply_settings = 1; |
637fa988 JD |
620 | break; |
621 | } | |
622 | ||
f904c0f9 | 623 | |
637fa988 JD |
624 | if (check_window_p) |
625 | { | |
626 | dpyinfo->xsettings_window = None; | |
627 | get_prop_window (dpyinfo); | |
628 | if (dpyinfo->xsettings_window != None) | |
f904c0f9 | 629 | apply_settings = 1; |
637fa988 | 630 | } |
f904c0f9 JD |
631 | |
632 | if (apply_settings) | |
633 | read_and_apply_settings (dpyinfo, True); | |
637fa988 JD |
634 | } |
635 | ||
636 | ||
637 | static void | |
638 | init_gconf () | |
639 | { | |
0d1d0d26 | 640 | #if defined (HAVE_GCONF) && defined (HAVE_XFT) |
637fa988 JD |
641 | int i; |
642 | char *s; | |
637fa988 JD |
643 | |
644 | g_type_init (); | |
645 | gconf_client = gconf_client_get_default (); | |
646 | s = gconf_client_get_string (gconf_client, SYSTEM_MONO_FONT, NULL); | |
647 | if (s) | |
648 | { | |
649 | current_mono_font = xstrdup (s); | |
650 | g_free (s); | |
651 | } | |
99852628 JD |
652 | s = gconf_client_get_string (gconf_client, SYSTEM_FONT, NULL); |
653 | if (s) | |
654 | { | |
655 | current_font = xstrdup (s); | |
656 | g_free (s); | |
657 | } | |
637fa988 JD |
658 | gconf_client_set_error_handling (gconf_client, GCONF_CLIENT_HANDLE_NONE); |
659 | gconf_client_add_dir (gconf_client, | |
660 | SYSTEM_MONO_FONT, | |
661 | GCONF_CLIENT_PRELOAD_ONELEVEL, | |
662 | NULL); | |
663 | gconf_client_notify_add (gconf_client, | |
664 | SYSTEM_MONO_FONT, | |
665 | something_changedCB, | |
666 | NULL, NULL, NULL); | |
0d1d0d26 | 667 | #endif /* HAVE_GCONF && HAVE_XFT */ |
637fa988 JD |
668 | } |
669 | ||
670 | static void | |
f904c0f9 | 671 | init_xsettings (dpyinfo) |
637fa988 JD |
672 | struct x_display_info *dpyinfo; |
673 | { | |
637fa988 JD |
674 | char sel[64]; |
675 | Display *dpy = dpyinfo->display; | |
676 | ||
677 | BLOCK_INPUT; | |
678 | ||
679 | sprintf (sel, "_XSETTINGS_S%d", XScreenNumberOfScreen (dpyinfo->screen)); | |
680 | dpyinfo->Xatom_xsettings_sel = XInternAtom (dpy, sel, False); | |
681 | dpyinfo->Xatom_xsettings_prop = XInternAtom (dpy, | |
682 | "_XSETTINGS_SETTINGS", | |
683 | False); | |
684 | dpyinfo->Xatom_xsettings_mgr = XInternAtom (dpy, "MANAGER", False); | |
685 | ||
686 | /* Select events so we can detect client messages sent when selection | |
687 | owner changes. */ | |
688 | XSelectInput (dpy, dpyinfo->root_window, StructureNotifyMask); | |
689 | ||
690 | get_prop_window (dpyinfo); | |
691 | if (dpyinfo->xsettings_window != None) | |
f904c0f9 | 692 | read_and_apply_settings (dpyinfo, False); |
637fa988 JD |
693 | |
694 | UNBLOCK_INPUT; | |
637fa988 JD |
695 | } |
696 | ||
697 | void | |
698 | xsettings_initialize (dpyinfo) | |
699 | struct x_display_info *dpyinfo; | |
700 | { | |
701 | if (first_dpyinfo == NULL) first_dpyinfo = dpyinfo; | |
702 | init_gconf (); | |
f904c0f9 | 703 | init_xsettings (dpyinfo); |
637fa988 JD |
704 | } |
705 | ||
0d1d0d26 JD |
706 | const char * |
707 | xsettings_get_system_font () | |
708 | { | |
709 | return current_mono_font; | |
710 | } | |
637fa988 | 711 | |
99852628 JD |
712 | const char * |
713 | xsettings_get_system_normal_font () | |
714 | { | |
715 | return current_font; | |
716 | } | |
717 | ||
718 | DEFUN ("font-get-system-normal-font", Ffont_get_system_normal_font, | |
719 | Sfont_get_system_normal_font, | |
720 | 0, 0, 0, | |
721 | doc: /* Get the system default font. */) | |
722 | () | |
723 | { | |
724 | return current_font && use_system_font | |
725 | ? make_string (current_font, strlen (current_font)) | |
726 | : Qnil; | |
727 | } | |
728 | ||
637fa988 JD |
729 | DEFUN ("font-get-system-font", Ffont_get_system_font, Sfont_get_system_font, |
730 | 0, 0, 0, | |
731 | doc: /* Get the system default monospaced font. */) | |
732 | () | |
733 | { | |
dfb3c4c6 | 734 | return current_mono_font && use_system_font |
637fa988 JD |
735 | ? make_string (current_mono_font, strlen (current_mono_font)) |
736 | : Qnil; | |
737 | } | |
738 | ||
f904c0f9 JD |
739 | DEFUN ("tool-bar-get-system-style", Ftool_bar_get_system_style, Stool_bar_get_system_style, |
740 | 0, 0, 0, | |
741 | doc: /* Get the system tool bar style. | |
742 | If no system tool bar style is known, return `tool-bar-style' is set to a | |
743 | known style. Otherwise return image. */) | |
744 | () | |
745 | { | |
746 | if (EQ (Vtool_bar_style, Qimage) | |
747 | || EQ (Vtool_bar_style, Qtext) | |
748 | || EQ (Vtool_bar_style, Qboth) | |
749 | || EQ (Vtool_bar_style, Qboth_horiz)) | |
750 | return Vtool_bar_style; | |
751 | if (!NILP (current_tool_bar_style)) | |
752 | return current_tool_bar_style; | |
753 | return Qimage; | |
754 | } | |
755 | ||
637fa988 JD |
756 | void |
757 | syms_of_xsettings () | |
758 | { | |
759 | current_mono_font = NULL; | |
99852628 | 760 | current_font = NULL; |
637fa988 JD |
761 | first_dpyinfo = NULL; |
762 | #ifdef HAVE_GCONF | |
763 | gconf_client = NULL; | |
764 | #endif | |
765 | ||
f904c0f9 JD |
766 | Qmonospace_font_name = intern_c_string ("monospace-font-name"); |
767 | staticpro (&Qmonospace_font_name); | |
637fa988 JD |
768 | Qfont_name = intern_c_string ("font-name"); |
769 | staticpro (&Qfont_name); | |
770 | Qfont_render = intern_c_string ("font-render"); | |
771 | staticpro (&Qfont_render); | |
772 | defsubr (&Sfont_get_system_font); | |
99852628 | 773 | defsubr (&Sfont_get_system_normal_font); |
637fa988 | 774 | |
dfb3c4c6 JD |
775 | DEFVAR_BOOL ("font-use-system-font", &use_system_font, |
776 | doc: /* *Non-nil means to use the system defined font. */); | |
777 | use_system_font = 0; | |
778 | ||
67477f30 JD |
779 | DEFVAR_LISP ("xft-settings", &Vxft_settings, |
780 | doc: /* Font settings applied to Xft. */); | |
781 | Vxft_settings = make_string ("", 0); | |
782 | ||
0d1d0d26 JD |
783 | #ifdef HAVE_XFT |
784 | Fprovide (intern_c_string ("font-render-setting"), Qnil); | |
637fa988 JD |
785 | #ifdef HAVE_GCONF |
786 | Fprovide (intern_c_string ("system-font-setting"), Qnil); | |
787 | #endif | |
637fa988 | 788 | #endif |
f904c0f9 JD |
789 | |
790 | current_tool_bar_style = Qnil; | |
791 | Qtool_bar_style = intern_c_string ("tool-bar-style"); | |
792 | staticpro (&Qtool_bar_style); | |
793 | defsubr (&Stool_bar_get_system_style); | |
794 | ||
795 | Fprovide (intern_c_string ("dynamic-setting"), Qnil); | |
637fa988 | 796 | } |
964f5b2b MB |
797 | |
798 | /* arch-tag: 541716ed-2e6b-42e1-8212-3197e01ea61d | |
799 | (do not change this comment) */ |