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210af043 | 1 | /* Functions for handle font and other 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 | ||
08a494a3 | 20 | #include <config.h> |
210af043 | 21 | #include <limits.h> |
637fa988 JD |
22 | #include <setjmp.h> |
23 | #include <fcntl.h> | |
24 | #include "lisp.h" | |
25 | #include "xterm.h" | |
26 | #include "xsettings.h" | |
27 | #include "frame.h" | |
b87dd913 | 28 | #include "keyboard.h" |
637fa988 JD |
29 | #include "blockinput.h" |
30 | #include "termhooks.h" | |
31 | #include "termopts.h" | |
32 | ||
33 | #include <X11/Xproto.h> | |
34 | ||
35 | #ifdef HAVE_GCONF | |
36 | #include <gconf/gconf-client.h> | |
37 | #endif | |
38 | #ifdef HAVE_XFT | |
39 | #include <X11/Xft/Xft.h> | |
40 | #endif | |
41 | ||
42 | static char *current_mono_font; | |
99852628 | 43 | static char *current_font; |
637fa988 | 44 | static struct x_display_info *first_dpyinfo; |
f904c0f9 JD |
45 | static Lisp_Object Qmonospace_font_name, Qfont_name, Qfont_render, |
46 | Qtool_bar_style; | |
dfb3c4c6 | 47 | static int use_system_font; |
67477f30 | 48 | static Lisp_Object Vxft_settings; |
f904c0f9 | 49 | static Lisp_Object current_tool_bar_style; |
637fa988 JD |
50 | |
51 | #ifdef HAVE_GCONF | |
52 | static GConfClient *gconf_client; | |
53 | #endif | |
54 | ||
55 | ||
56 | static void | |
f904c0f9 | 57 | store_config_changed_event (arg, display_name) |
637fa988 JD |
58 | Lisp_Object arg; |
59 | Lisp_Object display_name; | |
60 | { | |
61 | struct input_event event; | |
62 | EVENT_INIT (event); | |
63 | event.kind = CONFIG_CHANGED_EVENT; | |
64 | event.frame_or_window = display_name; | |
65 | event.arg = arg; | |
66 | kbd_buffer_store_event (&event); | |
67 | } | |
68 | ||
f904c0f9 JD |
69 | #define XSETTINGS_FONT_NAME "Gtk/FontName" |
70 | #define XSETTINGS_TOOL_BAR_STYLE "Gtk/ToolbarStyle" | |
0269ef77 | 71 | |
f904c0f9 JD |
72 | enum { |
73 | SEEN_AA = 0x01, | |
74 | SEEN_HINTING = 0x02, | |
75 | SEEN_RGBA = 0x04, | |
76 | SEEN_LCDFILTER = 0x08, | |
77 | SEEN_HINTSTYLE = 0x10, | |
78 | SEEN_DPI = 0x20, | |
79 | SEEN_FONT = 0x40, | |
80 | SEEN_TB_STYLE = 0x80, | |
81 | }; | |
82 | struct xsettings | |
83 | { | |
84 | #ifdef HAVE_XFT | |
85 | FcBool aa, hinting; | |
86 | int rgba, lcdfilter, hintstyle; | |
87 | double dpi; | |
88 | #endif | |
89 | ||
90 | char *font; | |
91 | char *tb_style; | |
92 | ||
93 | unsigned seen; | |
94 | }; | |
95 | ||
31a01b90 JD |
96 | #ifdef HAVE_GCONF |
97 | ||
98 | #define SYSTEM_MONO_FONT "/desktop/gnome/interface/monospace_font_name" | |
99 | #define SYSTEM_FONT "/desktop/gnome/interface/font_name" | |
100 | ||
637fa988 JD |
101 | /* Callback called when something changed in GConf that we care about, |
102 | that is SYSTEM_MONO_FONT. */ | |
103 | ||
104 | static void | |
105 | something_changedCB (client, cnxn_id, entry, user_data) | |
106 | GConfClient *client; | |
107 | guint cnxn_id; | |
108 | GConfEntry *entry; | |
109 | gpointer user_data; | |
110 | { | |
111 | GConfValue *v = gconf_entry_get_value (entry); | |
112 | ||
113 | if (!v) return; | |
114 | if (v->type == GCONF_VALUE_STRING) | |
115 | { | |
116 | const char *value = gconf_value_get_string (v); | |
117 | int i; | |
118 | if (current_mono_font != NULL && strcmp (value, current_mono_font) == 0) | |
872870b2 | 119 | return; /* No change. */ |
637fa988 JD |
120 | |
121 | xfree (current_mono_font); | |
122 | current_mono_font = xstrdup (value); | |
123 | } | |
124 | ||
125 | ||
126 | if (first_dpyinfo != NULL) | |
127 | { | |
128 | /* Check if display still open */ | |
129 | struct x_display_info *dpyinfo; | |
130 | int found = 0; | |
131 | for (dpyinfo = x_display_list; !found && dpyinfo; dpyinfo = dpyinfo->next) | |
132 | found = dpyinfo == first_dpyinfo; | |
133 | ||
dfb3c4c6 | 134 | if (found && use_system_font) |
f904c0f9 JD |
135 | store_config_changed_event (Qmonospace_font_name, |
136 | XCAR (first_dpyinfo->name_list_element)); | |
637fa988 JD |
137 | } |
138 | } | |
139 | #endif /* HAVE_GCONF */ | |
140 | ||
141 | #ifdef HAVE_XFT | |
142 | ||
21050de1 JD |
143 | /* Older fontconfig versions don't have FC_LCD_*. */ |
144 | #ifndef FC_LCD_NONE | |
145 | #define FC_LCD_NONE 0 | |
146 | #endif | |
147 | #ifndef FC_LCD_DEFAULT | |
148 | #define FC_LCD_DEFAULT 1 | |
149 | #endif | |
150 | #ifndef FC_LCD_FILTER | |
151 | #define FC_LCD_FILTER "lcdfilter" | |
152 | #endif | |
153 | ||
f904c0f9 JD |
154 | #endif /* HAVE_XFT */ |
155 | ||
637fa988 JD |
156 | /* Find the window that contains the XSETTINGS property values. */ |
157 | ||
158 | static void | |
159 | get_prop_window (dpyinfo) | |
160 | struct x_display_info *dpyinfo; | |
161 | { | |
162 | Display *dpy = dpyinfo->display; | |
163 | ||
164 | XGrabServer (dpy); | |
165 | dpyinfo->xsettings_window = XGetSelectionOwner (dpy, | |
166 | dpyinfo->Xatom_xsettings_sel); | |
167 | if (dpyinfo->xsettings_window != None) | |
168 | /* Select events so we can detect if window is deleted or if settings | |
169 | are changed. */ | |
170 | XSelectInput (dpy, dpyinfo->xsettings_window, | |
171 | PropertyChangeMask|StructureNotifyMask); | |
172 | ||
173 | XUngrabServer (dpy); | |
174 | } | |
175 | ||
637fa988 JD |
176 | #define SWAP32(nr) (((nr) << 24) | (((nr) << 8) & 0xff0000) \ |
177 | | (((nr) >> 8) & 0xff00) | ((nr) >> 24)) | |
178 | #define SWAP16(nr) (((nr) << 8) | ((nr) >> 8)) | |
179 | #define PAD(nr) (((nr) + 3) & ~3) | |
180 | ||
181 | /* Parse xsettings and extract those that deal with Xft. | |
182 | See http://freedesktop.org/wiki/Specifications/XSettingsRegistry | |
183 | and http://standards.freedesktop.org/xsettings-spec/xsettings-spec-0.5.html. | |
184 | ||
185 | Layout of prop. First is a header: | |
186 | ||
187 | bytes type what | |
188 | ------------------------------------ | |
189 | 1 CARD8 byte-order | |
190 | 3 unused | |
191 | 4 CARD32 SERIAL | |
192 | 4 CARD32 N_SETTINGS | |
193 | ||
194 | Then N_SETTINGS records, with header: | |
195 | ||
196 | bytes type what | |
197 | ------------------------------------ | |
198 | 1 SETTING_TYPE type (0 = integer, 1 = string, 2 RGB color). | |
199 | 1 unused | |
200 | 2 CARD16 n == name-length | |
201 | n STRING8 name | |
202 | p unused, p=pad_to_even_4(n) | |
203 | 4 CARD32 last-change-serial | |
204 | ||
205 | and then the value, For string: | |
206 | ||
207 | bytes type what | |
208 | ------------------------------------ | |
209 | 4 CARD32 n = value-length | |
210 | n STRING8 value | |
211 | p unused, p=pad_to_even_4(n) | |
212 | ||
213 | For integer: | |
214 | ||
215 | bytes type what | |
216 | ------------------------------------ | |
217 | 4 INT32 value | |
218 | ||
219 | For RGB color: | |
220 | ||
221 | bytes type what | |
222 | ------------------------------------ | |
223 | 2 CARD16 red | |
224 | 2 CARD16 blue | |
225 | 2 CARD16 green | |
226 | 2 CARD16 alpha | |
227 | ||
3c055b77 | 228 | Returns non-zero if some Xft settings was seen, zero otherwise. |
637fa988 JD |
229 | */ |
230 | ||
231 | static int | |
f904c0f9 | 232 | parse_settings (prop, bytes, settings) |
637fa988 JD |
233 | unsigned char *prop; |
234 | unsigned long bytes; | |
235 | struct xsettings *settings; | |
236 | { | |
237 | Lisp_Object byteorder = Fbyteorder (); | |
238 | int my_bo = XFASTINT (byteorder) == 'B' ? MSBFirst : LSBFirst; | |
239 | int that_bo = prop[0]; | |
240 | CARD32 n_settings; | |
241 | int bytes_parsed = 0; | |
242 | int settings_seen = 0; | |
243 | int i = 0; | |
244 | ||
245 | /* First 4 bytes is a serial number, skip that. */ | |
246 | ||
247 | if (bytes < 12) return BadLength; | |
248 | memcpy (&n_settings, prop+8, 4); | |
249 | if (my_bo != that_bo) n_settings = SWAP32 (n_settings); | |
250 | bytes_parsed = 12; | |
251 | ||
252 | memset (settings, 0, sizeof (*settings)); | |
253 | ||
99852628 | 254 | while (bytes_parsed+4 < bytes && settings_seen < 7 |
637fa988 JD |
255 | && i < n_settings) |
256 | { | |
257 | int type = prop[bytes_parsed++]; | |
258 | CARD16 nlen; | |
259 | CARD32 vlen, ival = 0; | |
260 | char name[128]; /* The names we are looking for are not this long. */ | |
261 | char sval[128]; /* The values we are looking for are not this long. */ | |
99852628 | 262 | int want_this; |
637fa988 JD |
263 | int to_cpy; |
264 | ||
265 | sval[0] = '\0'; | |
266 | ++i; | |
267 | ++bytes_parsed; /* Padding */ | |
268 | ||
269 | memcpy (&nlen, prop+bytes_parsed, 2); | |
270 | bytes_parsed += 2; | |
271 | if (my_bo != that_bo) nlen = SWAP16 (nlen); | |
272 | if (bytes_parsed+nlen > bytes) return BadLength; | |
273 | to_cpy = nlen > 127 ? 127 : nlen; | |
274 | memcpy (name, prop+bytes_parsed, to_cpy); | |
275 | name[to_cpy] = '\0'; | |
276 | ||
277 | bytes_parsed += nlen; | |
278 | bytes_parsed = PAD (bytes_parsed); | |
279 | ||
280 | bytes_parsed += 4; /* Skip serial for this value */ | |
281 | if (bytes_parsed > bytes) return BadLength; | |
282 | ||
f904c0f9 JD |
283 | want_this = |
284 | #ifdef HAVE_XFT | |
285 | (nlen > 6 && strncmp (name, "Xft/", 4) == 0) | |
286 | || | |
287 | #endif | |
288 | (strcmp (XSETTINGS_FONT_NAME, name) == 0) | |
289 | || (strcmp (XSETTINGS_TOOL_BAR_STYLE, name) == 0); | |
637fa988 JD |
290 | |
291 | switch (type) | |
292 | { | |
293 | case 0: /* Integer */ | |
294 | if (bytes_parsed+4 > bytes) return BadLength; | |
99852628 | 295 | if (want_this) |
637fa988 JD |
296 | { |
297 | memcpy (&ival, prop+bytes_parsed, 4); | |
298 | if (my_bo != that_bo) ival = SWAP32 (ival); | |
299 | } | |
300 | bytes_parsed += 4; | |
301 | break; | |
302 | ||
303 | case 1: /* String */ | |
304 | if (bytes_parsed+4 > bytes) return BadLength; | |
305 | memcpy (&vlen, prop+bytes_parsed, 4); | |
306 | bytes_parsed += 4; | |
307 | if (my_bo != that_bo) vlen = SWAP32 (vlen); | |
99852628 | 308 | if (want_this) |
637fa988 JD |
309 | { |
310 | to_cpy = vlen > 127 ? 127 : vlen; | |
311 | memcpy (sval, prop+bytes_parsed, to_cpy); | |
312 | sval[to_cpy] = '\0'; | |
313 | } | |
314 | bytes_parsed += vlen; | |
315 | bytes_parsed = PAD (bytes_parsed); | |
316 | break; | |
317 | ||
318 | case 2: /* RGB value */ | |
319 | /* No need to parse this */ | |
320 | if (bytes_parsed+8 > bytes) return BadLength; | |
321 | bytes_parsed += 8; /* 4 values (r, b, g, alpha), 2 bytes each. */ | |
322 | break; | |
323 | ||
324 | default: /* Parse Error */ | |
325 | return BadValue; | |
326 | } | |
327 | ||
99852628 | 328 | if (want_this) |
637fa988 JD |
329 | { |
330 | ++settings_seen; | |
f904c0f9 JD |
331 | if (strcmp (name, XSETTINGS_FONT_NAME) == 0) |
332 | { | |
333 | settings->font = xstrdup (sval); | |
334 | settings->seen |= SEEN_FONT; | |
335 | } | |
336 | else if (strcmp (name, XSETTINGS_TOOL_BAR_STYLE) == 0) | |
337 | { | |
338 | settings->tb_style = xstrdup (sval); | |
339 | settings->seen |= SEEN_TB_STYLE; | |
340 | } | |
341 | #ifdef HAVE_XFT | |
342 | else if (strcmp (name, "Xft/Antialias") == 0) | |
3c055b77 JD |
343 | { |
344 | settings->seen |= SEEN_AA; | |
345 | settings->aa = ival != 0; | |
346 | } | |
637fa988 | 347 | else if (strcmp (name, "Xft/Hinting") == 0) |
3c055b77 JD |
348 | { |
349 | settings->seen |= SEEN_HINTING; | |
350 | settings->hinting = ival != 0; | |
351 | } | |
637fa988 JD |
352 | else if (strcmp (name, "Xft/HintStyle") == 0) |
353 | { | |
3c055b77 | 354 | settings->seen |= SEEN_HINTSTYLE; |
637fa988 JD |
355 | if (strcmp (sval, "hintnone") == 0) |
356 | settings->hintstyle = FC_HINT_NONE; | |
357 | else if (strcmp (sval, "hintslight") == 0) | |
358 | settings->hintstyle = FC_HINT_SLIGHT; | |
359 | else if (strcmp (sval, "hintmedium") == 0) | |
360 | settings->hintstyle = FC_HINT_MEDIUM; | |
361 | else if (strcmp (sval, "hintfull") == 0) | |
362 | settings->hintstyle = FC_HINT_FULL; | |
3c055b77 JD |
363 | else |
364 | settings->seen &= ~SEEN_HINTSTYLE; | |
637fa988 JD |
365 | } |
366 | else if (strcmp (name, "Xft/RGBA") == 0) | |
367 | { | |
3c055b77 | 368 | settings->seen |= SEEN_RGBA; |
637fa988 JD |
369 | if (strcmp (sval, "none") == 0) |
370 | settings->rgba = FC_RGBA_NONE; | |
371 | else if (strcmp (sval, "rgb") == 0) | |
372 | settings->rgba = FC_RGBA_RGB; | |
373 | else if (strcmp (sval, "bgr") == 0) | |
374 | settings->rgba = FC_RGBA_BGR; | |
375 | else if (strcmp (sval, "vrgb") == 0) | |
376 | settings->rgba = FC_RGBA_VRGB; | |
377 | else if (strcmp (sval, "vbgr") == 0) | |
378 | settings->rgba = FC_RGBA_VBGR; | |
3c055b77 JD |
379 | else |
380 | settings->seen &= ~SEEN_RGBA; | |
637fa988 JD |
381 | } |
382 | else if (strcmp (name, "Xft/DPI") == 0) | |
3c055b77 JD |
383 | { |
384 | settings->seen |= SEEN_DPI; | |
385 | settings->dpi = (double)ival/1024.0; | |
386 | } | |
637fa988 JD |
387 | else if (strcmp (name, "Xft/lcdfilter") == 0) |
388 | { | |
3c055b77 | 389 | settings->seen |= SEEN_LCDFILTER; |
637fa988 JD |
390 | if (strcmp (sval, "none") == 0) |
391 | settings->lcdfilter = FC_LCD_NONE; | |
392 | else if (strcmp (sval, "lcddefault") == 0) | |
393 | settings->lcdfilter = FC_LCD_DEFAULT; | |
3c055b77 JD |
394 | else |
395 | settings->seen &= ~SEEN_LCDFILTER; | |
637fa988 | 396 | } |
f904c0f9 | 397 | #endif /* HAVE_XFT */ |
637fa988 JD |
398 | } |
399 | } | |
400 | ||
3c055b77 | 401 | return settings_seen; |
637fa988 JD |
402 | } |
403 | ||
404 | static int | |
f904c0f9 | 405 | read_settings (dpyinfo, settings) |
637fa988 JD |
406 | struct x_display_info *dpyinfo; |
407 | struct xsettings *settings; | |
408 | { | |
409 | long long_len; | |
410 | Atom act_type; | |
411 | int act_form; | |
412 | unsigned long nitems, bytes_after; | |
413 | unsigned char *prop = NULL; | |
414 | Display *dpy = dpyinfo->display; | |
415 | int rc; | |
416 | ||
417 | x_catch_errors (dpy); | |
418 | rc = XGetWindowProperty (dpy, | |
419 | dpyinfo->xsettings_window, | |
420 | dpyinfo->Xatom_xsettings_prop, | |
421 | 0, LONG_MAX, False, AnyPropertyType, | |
422 | &act_type, &act_form, &nitems, &bytes_after, | |
423 | &prop); | |
424 | ||
425 | if (rc == Success && prop != NULL && act_form == 8 && nitems > 0 | |
426 | && act_type == dpyinfo->Xatom_xsettings_prop) | |
f904c0f9 | 427 | rc = parse_settings (prop, nitems, settings); |
637fa988 JD |
428 | |
429 | XFree (prop); | |
430 | ||
431 | x_uncatch_errors (); | |
432 | ||
3c055b77 | 433 | return rc != 0; |
637fa988 JD |
434 | } |
435 | ||
581e51e8 | 436 | |
637fa988 | 437 | static void |
f904c0f9 | 438 | apply_xft_settings (dpyinfo, send_event_p, settings) |
637fa988 JD |
439 | struct x_display_info *dpyinfo; |
440 | int send_event_p; | |
f904c0f9 | 441 | struct xsettings *settings; |
637fa988 | 442 | { |
f904c0f9 | 443 | #ifdef HAVE_XFT |
637fa988 | 444 | FcPattern *pat; |
f904c0f9 | 445 | struct xsettings oldsettings; |
637fa988 | 446 | int changed = 0; |
67477f30 | 447 | char buf[256]; |
637fa988 | 448 | |
637fa988 | 449 | memset (&oldsettings, 0, sizeof (oldsettings)); |
67477f30 | 450 | buf[0] = '\0'; |
637fa988 JD |
451 | pat = FcPatternCreate (); |
452 | XftDefaultSubstitute (dpyinfo->display, | |
453 | XScreenNumberOfScreen (dpyinfo->screen), | |
454 | pat); | |
455 | FcPatternGetBool (pat, FC_ANTIALIAS, 0, &oldsettings.aa); | |
456 | FcPatternGetBool (pat, FC_HINTING, 0, &oldsettings.hinting); | |
457 | FcPatternGetInteger (pat, FC_HINT_STYLE, 0, &oldsettings.hintstyle); | |
458 | FcPatternGetInteger (pat, FC_LCD_FILTER, 0, &oldsettings.lcdfilter); | |
459 | FcPatternGetInteger (pat, FC_RGBA, 0, &oldsettings.rgba); | |
460 | FcPatternGetDouble (pat, FC_DPI, 0, &oldsettings.dpi); | |
461 | ||
f904c0f9 | 462 | if ((settings->seen & SEEN_AA) != 0 && oldsettings.aa != settings->aa) |
637fa988 JD |
463 | { |
464 | FcPatternDel (pat, FC_ANTIALIAS); | |
f904c0f9 | 465 | FcPatternAddBool (pat, FC_ANTIALIAS, settings->aa); |
637fa988 | 466 | ++changed; |
f904c0f9 | 467 | oldsettings.aa = settings->aa; |
637fa988 | 468 | } |
67477f30 JD |
469 | sprintf (buf, "Antialias: %d", oldsettings.aa); |
470 | ||
f904c0f9 JD |
471 | if ((settings->seen & SEEN_HINTING) != 0 |
472 | && oldsettings.hinting != settings->hinting) | |
637fa988 JD |
473 | { |
474 | FcPatternDel (pat, FC_HINTING); | |
f904c0f9 | 475 | FcPatternAddBool (pat, FC_HINTING, settings->hinting); |
637fa988 | 476 | ++changed; |
f904c0f9 | 477 | oldsettings.hinting = settings->hinting; |
637fa988 | 478 | } |
67477f30 JD |
479 | if (strlen (buf) > 0) strcat (buf, ", "); |
480 | sprintf (buf+strlen (buf), "Hinting: %d", oldsettings.hinting); | |
f904c0f9 | 481 | if ((settings->seen & SEEN_RGBA) != 0 && oldsettings.rgba != settings->rgba) |
637fa988 JD |
482 | { |
483 | FcPatternDel (pat, FC_RGBA); | |
f904c0f9 JD |
484 | FcPatternAddInteger (pat, FC_RGBA, settings->rgba); |
485 | oldsettings.rgba = settings->rgba; | |
637fa988 JD |
486 | ++changed; |
487 | } | |
67477f30 JD |
488 | if (strlen (buf) > 0) strcat (buf, ", "); |
489 | sprintf (buf+strlen (buf), "RGBA: %d", oldsettings.rgba); | |
490 | ||
a6eb20d8 | 491 | /* Older fontconfig versions don't have FC_LCD_FILTER. */ |
f904c0f9 JD |
492 | if ((settings->seen & SEEN_LCDFILTER) != 0 |
493 | && oldsettings.lcdfilter != settings->lcdfilter) | |
637fa988 JD |
494 | { |
495 | FcPatternDel (pat, FC_LCD_FILTER); | |
f904c0f9 | 496 | FcPatternAddInteger (pat, FC_LCD_FILTER, settings->lcdfilter); |
637fa988 | 497 | ++changed; |
f904c0f9 | 498 | oldsettings.lcdfilter = settings->lcdfilter; |
637fa988 | 499 | } |
67477f30 JD |
500 | if (strlen (buf) > 0) strcat (buf, ", "); |
501 | sprintf (buf+strlen (buf), "LCDFilter: %d", oldsettings.lcdfilter); | |
502 | ||
f904c0f9 JD |
503 | if ((settings->seen & SEEN_HINTSTYLE) != 0 |
504 | && oldsettings.hintstyle != settings->hintstyle) | |
637fa988 JD |
505 | { |
506 | FcPatternDel (pat, FC_HINT_STYLE); | |
f904c0f9 | 507 | FcPatternAddInteger (pat, FC_HINT_STYLE, settings->hintstyle); |
637fa988 | 508 | ++changed; |
f904c0f9 | 509 | oldsettings.hintstyle = settings->hintstyle; |
637fa988 | 510 | } |
67477f30 JD |
511 | if (strlen (buf) > 0) strcat (buf, ", "); |
512 | sprintf (buf+strlen (buf), "Hintstyle: %d", oldsettings.hintstyle); | |
513 | ||
f904c0f9 JD |
514 | if ((settings->seen & SEEN_DPI) != 0 && oldsettings.dpi != settings->dpi |
515 | && settings->dpi > 0) | |
637fa988 JD |
516 | { |
517 | Lisp_Object frame, tail; | |
518 | ||
519 | FcPatternDel (pat, FC_DPI); | |
f904c0f9 | 520 | FcPatternAddDouble (pat, FC_DPI, settings->dpi); |
637fa988 | 521 | ++changed; |
f904c0f9 | 522 | oldsettings.dpi = settings->dpi; |
67477f30 | 523 | |
637fa988 | 524 | /* Change the DPI on this display and all frames on the display. */ |
f904c0f9 | 525 | dpyinfo->resy = dpyinfo->resx = settings->dpi; |
637fa988 JD |
526 | FOR_EACH_FRAME (tail, frame) |
527 | if (FRAME_X_P (XFRAME (frame)) | |
528 | && FRAME_X_DISPLAY_INFO (XFRAME (frame)) == dpyinfo) | |
f904c0f9 | 529 | XFRAME (frame)->resy = XFRAME (frame)->resx = settings->dpi; |
637fa988 JD |
530 | } |
531 | ||
67477f30 JD |
532 | if (strlen (buf) > 0) strcat (buf, ", "); |
533 | sprintf (buf+strlen (buf), "DPI: %lf", oldsettings.dpi); | |
534 | ||
637fa988 JD |
535 | if (changed) |
536 | { | |
537 | XftDefaultSet (dpyinfo->display, pat); | |
538 | if (send_event_p) | |
f904c0f9 JD |
539 | store_config_changed_event (Qfont_render, |
540 | XCAR (dpyinfo->name_list_element)); | |
67477f30 | 541 | Vxft_settings = make_string (buf, strlen (buf)); |
637fa988 JD |
542 | } |
543 | else | |
544 | FcPatternDestroy (pat); | |
f904c0f9 | 545 | #endif /* HAVE_XFT */ |
637fa988 JD |
546 | } |
547 | ||
f904c0f9 JD |
548 | static void |
549 | read_and_apply_settings (dpyinfo, send_event_p) | |
550 | struct x_display_info *dpyinfo; | |
551 | int send_event_p; | |
552 | { | |
553 | struct xsettings settings; | |
554 | Lisp_Object dpyname = XCAR (dpyinfo->name_list_element); | |
555 | ||
556 | if (!read_settings (dpyinfo, &settings)) | |
557 | return; | |
558 | ||
559 | apply_xft_settings (dpyinfo, True, &settings); | |
560 | if (settings.seen & SEEN_TB_STYLE) | |
561 | { | |
562 | Lisp_Object style = Qnil; | |
563 | if (strcmp (settings.tb_style, "both") == 0) | |
564 | style = Qboth; | |
565 | else if (strcmp (settings.tb_style, "both-horiz") == 0) | |
566 | style = Qboth_horiz; | |
567 | else if (strcmp (settings.tb_style, "icons") == 0) | |
568 | style = Qimage; | |
569 | else if (strcmp (settings.tb_style, "text") == 0) | |
570 | style = Qtext; | |
571 | if (!NILP (style) && !EQ (style, current_tool_bar_style)) | |
572 | { | |
573 | current_tool_bar_style = style; | |
574 | if (send_event_p) | |
575 | store_config_changed_event (Qtool_bar_style, dpyname); | |
576 | } | |
577 | free (settings.tb_style); | |
578 | } | |
579 | ||
580 | if (settings.seen & SEEN_FONT) | |
581 | { | |
a0d0b563 | 582 | if (!current_font || strcmp (current_font, settings.font) != 0) |
f904c0f9 JD |
583 | { |
584 | free (current_font); | |
585 | current_font = settings.font; | |
586 | if (send_event_p) | |
587 | store_config_changed_event (Qfont_name, dpyname); | |
588 | } | |
589 | else | |
590 | free (settings.font); | |
591 | } | |
592 | } | |
637fa988 JD |
593 | |
594 | void | |
595 | xft_settings_event (dpyinfo, event) | |
596 | struct x_display_info *dpyinfo; | |
597 | XEvent *event; | |
598 | { | |
637fa988 | 599 | int check_window_p = 0; |
f904c0f9 | 600 | int apply_settings = 0; |
637fa988 JD |
601 | |
602 | switch (event->type) | |
603 | { | |
604 | case DestroyNotify: | |
605 | if (dpyinfo->xsettings_window == event->xany.window) | |
606 | check_window_p = 1; | |
607 | break; | |
608 | ||
609 | case ClientMessage: | |
610 | if (event->xclient.message_type == dpyinfo->Xatom_xsettings_mgr | |
611 | && event->xclient.data.l[1] == dpyinfo->Xatom_xsettings_sel | |
612 | && event->xclient.window == dpyinfo->root_window) | |
613 | check_window_p = 1; | |
614 | break; | |
615 | ||
616 | case PropertyNotify: | |
617 | if (event->xproperty.window == dpyinfo->xsettings_window | |
618 | && event->xproperty.state == PropertyNewValue | |
619 | && event->xproperty.atom == dpyinfo->Xatom_xsettings_prop) | |
f904c0f9 | 620 | apply_settings = 1; |
637fa988 JD |
621 | break; |
622 | } | |
623 | ||
f904c0f9 | 624 | |
637fa988 JD |
625 | if (check_window_p) |
626 | { | |
627 | dpyinfo->xsettings_window = None; | |
628 | get_prop_window (dpyinfo); | |
629 | if (dpyinfo->xsettings_window != None) | |
f904c0f9 | 630 | apply_settings = 1; |
637fa988 | 631 | } |
f904c0f9 JD |
632 | |
633 | if (apply_settings) | |
634 | read_and_apply_settings (dpyinfo, True); | |
637fa988 JD |
635 | } |
636 | ||
637 | ||
638 | static void | |
639 | init_gconf () | |
640 | { | |
0d1d0d26 | 641 | #if defined (HAVE_GCONF) && defined (HAVE_XFT) |
637fa988 JD |
642 | int i; |
643 | char *s; | |
637fa988 JD |
644 | |
645 | g_type_init (); | |
646 | gconf_client = gconf_client_get_default (); | |
647 | s = gconf_client_get_string (gconf_client, SYSTEM_MONO_FONT, NULL); | |
648 | if (s) | |
649 | { | |
650 | current_mono_font = xstrdup (s); | |
651 | g_free (s); | |
652 | } | |
99852628 JD |
653 | s = gconf_client_get_string (gconf_client, SYSTEM_FONT, NULL); |
654 | if (s) | |
655 | { | |
656 | current_font = xstrdup (s); | |
657 | g_free (s); | |
658 | } | |
637fa988 JD |
659 | gconf_client_set_error_handling (gconf_client, GCONF_CLIENT_HANDLE_NONE); |
660 | gconf_client_add_dir (gconf_client, | |
661 | SYSTEM_MONO_FONT, | |
662 | GCONF_CLIENT_PRELOAD_ONELEVEL, | |
663 | NULL); | |
664 | gconf_client_notify_add (gconf_client, | |
665 | SYSTEM_MONO_FONT, | |
666 | something_changedCB, | |
667 | NULL, NULL, NULL); | |
0d1d0d26 | 668 | #endif /* HAVE_GCONF && HAVE_XFT */ |
637fa988 JD |
669 | } |
670 | ||
671 | static void | |
f904c0f9 | 672 | init_xsettings (dpyinfo) |
637fa988 JD |
673 | struct x_display_info *dpyinfo; |
674 | { | |
637fa988 JD |
675 | char sel[64]; |
676 | Display *dpy = dpyinfo->display; | |
677 | ||
678 | BLOCK_INPUT; | |
679 | ||
680 | sprintf (sel, "_XSETTINGS_S%d", XScreenNumberOfScreen (dpyinfo->screen)); | |
681 | dpyinfo->Xatom_xsettings_sel = XInternAtom (dpy, sel, False); | |
682 | dpyinfo->Xatom_xsettings_prop = XInternAtom (dpy, | |
683 | "_XSETTINGS_SETTINGS", | |
684 | False); | |
685 | dpyinfo->Xatom_xsettings_mgr = XInternAtom (dpy, "MANAGER", False); | |
686 | ||
687 | /* Select events so we can detect client messages sent when selection | |
688 | owner changes. */ | |
689 | XSelectInput (dpy, dpyinfo->root_window, StructureNotifyMask); | |
690 | ||
691 | get_prop_window (dpyinfo); | |
692 | if (dpyinfo->xsettings_window != None) | |
f904c0f9 | 693 | read_and_apply_settings (dpyinfo, False); |
637fa988 JD |
694 | |
695 | UNBLOCK_INPUT; | |
637fa988 JD |
696 | } |
697 | ||
698 | void | |
699 | xsettings_initialize (dpyinfo) | |
700 | struct x_display_info *dpyinfo; | |
701 | { | |
702 | if (first_dpyinfo == NULL) first_dpyinfo = dpyinfo; | |
703 | init_gconf (); | |
f904c0f9 | 704 | init_xsettings (dpyinfo); |
637fa988 JD |
705 | } |
706 | ||
0d1d0d26 JD |
707 | const char * |
708 | xsettings_get_system_font () | |
709 | { | |
710 | return current_mono_font; | |
711 | } | |
637fa988 | 712 | |
99852628 JD |
713 | const char * |
714 | xsettings_get_system_normal_font () | |
715 | { | |
716 | return current_font; | |
717 | } | |
718 | ||
719 | DEFUN ("font-get-system-normal-font", Ffont_get_system_normal_font, | |
720 | Sfont_get_system_normal_font, | |
721 | 0, 0, 0, | |
722 | doc: /* Get the system default font. */) | |
723 | () | |
724 | { | |
725 | return current_font && use_system_font | |
726 | ? make_string (current_font, strlen (current_font)) | |
727 | : Qnil; | |
728 | } | |
729 | ||
637fa988 JD |
730 | DEFUN ("font-get-system-font", Ffont_get_system_font, Sfont_get_system_font, |
731 | 0, 0, 0, | |
732 | doc: /* Get the system default monospaced font. */) | |
733 | () | |
734 | { | |
dfb3c4c6 | 735 | return current_mono_font && use_system_font |
637fa988 JD |
736 | ? make_string (current_mono_font, strlen (current_mono_font)) |
737 | : Qnil; | |
738 | } | |
739 | ||
f904c0f9 JD |
740 | DEFUN ("tool-bar-get-system-style", Ftool_bar_get_system_style, Stool_bar_get_system_style, |
741 | 0, 0, 0, | |
742 | doc: /* Get the system tool bar style. | |
4721152c | 743 | If no system tool bar style is known, return `tool-bar-style' if set to a |
f904c0f9 JD |
744 | known style. Otherwise return image. */) |
745 | () | |
746 | { | |
747 | if (EQ (Vtool_bar_style, Qimage) | |
748 | || EQ (Vtool_bar_style, Qtext) | |
749 | || EQ (Vtool_bar_style, Qboth) | |
750 | || EQ (Vtool_bar_style, Qboth_horiz)) | |
751 | return Vtool_bar_style; | |
752 | if (!NILP (current_tool_bar_style)) | |
753 | return current_tool_bar_style; | |
754 | return Qimage; | |
755 | } | |
756 | ||
637fa988 JD |
757 | void |
758 | syms_of_xsettings () | |
759 | { | |
760 | current_mono_font = NULL; | |
99852628 | 761 | current_font = NULL; |
637fa988 JD |
762 | first_dpyinfo = NULL; |
763 | #ifdef HAVE_GCONF | |
764 | gconf_client = NULL; | |
765 | #endif | |
766 | ||
f904c0f9 JD |
767 | Qmonospace_font_name = intern_c_string ("monospace-font-name"); |
768 | staticpro (&Qmonospace_font_name); | |
637fa988 JD |
769 | Qfont_name = intern_c_string ("font-name"); |
770 | staticpro (&Qfont_name); | |
771 | Qfont_render = intern_c_string ("font-render"); | |
772 | staticpro (&Qfont_render); | |
773 | defsubr (&Sfont_get_system_font); | |
99852628 | 774 | defsubr (&Sfont_get_system_normal_font); |
637fa988 | 775 | |
dfb3c4c6 JD |
776 | DEFVAR_BOOL ("font-use-system-font", &use_system_font, |
777 | doc: /* *Non-nil means to use the system defined font. */); | |
778 | use_system_font = 0; | |
779 | ||
67477f30 JD |
780 | DEFVAR_LISP ("xft-settings", &Vxft_settings, |
781 | doc: /* Font settings applied to Xft. */); | |
782 | Vxft_settings = make_string ("", 0); | |
783 | ||
0d1d0d26 JD |
784 | #ifdef HAVE_XFT |
785 | Fprovide (intern_c_string ("font-render-setting"), Qnil); | |
637fa988 JD |
786 | #ifdef HAVE_GCONF |
787 | Fprovide (intern_c_string ("system-font-setting"), Qnil); | |
788 | #endif | |
637fa988 | 789 | #endif |
f904c0f9 JD |
790 | |
791 | current_tool_bar_style = Qnil; | |
792 | Qtool_bar_style = intern_c_string ("tool-bar-style"); | |
793 | staticpro (&Qtool_bar_style); | |
794 | defsubr (&Stool_bar_get_system_style); | |
795 | ||
796 | Fprovide (intern_c_string ("dynamic-setting"), Qnil); | |
637fa988 | 797 | } |
964f5b2b MB |
798 | |
799 | /* arch-tag: 541716ed-2e6b-42e1-8212-3197e01ea61d | |
800 | (do not change this comment) */ |