Commit | Line | Data |
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4ff155dd GM |
1 | /* Functions for handling font and other changes dynamically. |
2 | ||
73b0cd50 | 3 | Copyright (C) 2009-2011 Free Software Foundation, Inc. |
637fa988 JD |
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> |
aaafe47a PE |
21 | |
22 | #include <float.h> | |
210af043 | 23 | #include <limits.h> |
637fa988 JD |
24 | #include <setjmp.h> |
25 | #include <fcntl.h> | |
26 | #include "lisp.h" | |
27 | #include "xterm.h" | |
28 | #include "xsettings.h" | |
29 | #include "frame.h" | |
b87dd913 | 30 | #include "keyboard.h" |
637fa988 JD |
31 | #include "blockinput.h" |
32 | #include "termhooks.h" | |
33 | #include "termopts.h" | |
34 | ||
35 | #include <X11/Xproto.h> | |
36 | ||
37 | #ifdef HAVE_GCONF | |
38 | #include <gconf/gconf-client.h> | |
39 | #endif | |
40 | #ifdef HAVE_XFT | |
41 | #include <X11/Xft/Xft.h> | |
42 | #endif | |
43 | ||
44 | static char *current_mono_font; | |
99852628 | 45 | static char *current_font; |
637fa988 | 46 | static struct x_display_info *first_dpyinfo; |
f904c0f9 JD |
47 | static Lisp_Object Qmonospace_font_name, Qfont_name, Qfont_render, |
48 | Qtool_bar_style; | |
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 | |
971de7fb | 57 | store_config_changed_event (Lisp_Object arg, Lisp_Object display_name) |
637fa988 JD |
58 | { |
59 | struct input_event event; | |
60 | EVENT_INIT (event); | |
61 | event.kind = CONFIG_CHANGED_EVENT; | |
62 | event.frame_or_window = display_name; | |
63 | event.arg = arg; | |
64 | kbd_buffer_store_event (&event); | |
65 | } | |
66 | ||
f904c0f9 JD |
67 | #define XSETTINGS_FONT_NAME "Gtk/FontName" |
68 | #define XSETTINGS_TOOL_BAR_STYLE "Gtk/ToolbarStyle" | |
0269ef77 | 69 | |
f904c0f9 JD |
70 | enum { |
71 | SEEN_AA = 0x01, | |
72 | SEEN_HINTING = 0x02, | |
73 | SEEN_RGBA = 0x04, | |
74 | SEEN_LCDFILTER = 0x08, | |
75 | SEEN_HINTSTYLE = 0x10, | |
76 | SEEN_DPI = 0x20, | |
77 | SEEN_FONT = 0x40, | |
78 | SEEN_TB_STYLE = 0x80, | |
79 | }; | |
af59aa6e | 80 | struct xsettings |
f904c0f9 JD |
81 | { |
82 | #ifdef HAVE_XFT | |
83 | FcBool aa, hinting; | |
84 | int rgba, lcdfilter, hintstyle; | |
85 | double dpi; | |
86 | #endif | |
87 | ||
88 | char *font; | |
89 | char *tb_style; | |
90 | ||
91 | unsigned seen; | |
92 | }; | |
93 | ||
31a01b90 JD |
94 | #ifdef HAVE_GCONF |
95 | ||
96 | #define SYSTEM_MONO_FONT "/desktop/gnome/interface/monospace_font_name" | |
97 | #define SYSTEM_FONT "/desktop/gnome/interface/font_name" | |
98 | ||
637fa988 JD |
99 | /* Callback called when something changed in GConf that we care about, |
100 | that is SYSTEM_MONO_FONT. */ | |
101 | ||
102 | static void | |
e4c8d29a J |
103 | something_changedCB (GConfClient *client, |
104 | guint cnxn_id, | |
105 | GConfEntry *entry, | |
106 | gpointer user_data) | |
637fa988 JD |
107 | { |
108 | GConfValue *v = gconf_entry_get_value (entry); | |
af59aa6e | 109 | |
637fa988 JD |
110 | if (!v) return; |
111 | if (v->type == GCONF_VALUE_STRING) | |
112 | { | |
113 | const char *value = gconf_value_get_string (v); | |
637fa988 | 114 | if (current_mono_font != NULL && strcmp (value, current_mono_font) == 0) |
872870b2 | 115 | return; /* No change. */ |
637fa988 JD |
116 | |
117 | xfree (current_mono_font); | |
118 | current_mono_font = xstrdup (value); | |
119 | } | |
120 | ||
121 | ||
122 | if (first_dpyinfo != NULL) | |
123 | { | |
124 | /* Check if display still open */ | |
125 | struct x_display_info *dpyinfo; | |
126 | int found = 0; | |
127 | for (dpyinfo = x_display_list; !found && dpyinfo; dpyinfo = dpyinfo->next) | |
128 | found = dpyinfo == first_dpyinfo; | |
129 | ||
dfb3c4c6 | 130 | if (found && use_system_font) |
f904c0f9 JD |
131 | store_config_changed_event (Qmonospace_font_name, |
132 | XCAR (first_dpyinfo->name_list_element)); | |
637fa988 JD |
133 | } |
134 | } | |
135 | #endif /* HAVE_GCONF */ | |
136 | ||
137 | #ifdef HAVE_XFT | |
138 | ||
21050de1 JD |
139 | /* Older fontconfig versions don't have FC_LCD_*. */ |
140 | #ifndef FC_LCD_NONE | |
141 | #define FC_LCD_NONE 0 | |
142 | #endif | |
143 | #ifndef FC_LCD_DEFAULT | |
144 | #define FC_LCD_DEFAULT 1 | |
145 | #endif | |
146 | #ifndef FC_LCD_FILTER | |
147 | #define FC_LCD_FILTER "lcdfilter" | |
148 | #endif | |
149 | ||
f904c0f9 JD |
150 | #endif /* HAVE_XFT */ |
151 | ||
637fa988 JD |
152 | /* Find the window that contains the XSETTINGS property values. */ |
153 | ||
154 | static void | |
971de7fb | 155 | get_prop_window (struct x_display_info *dpyinfo) |
637fa988 JD |
156 | { |
157 | Display *dpy = dpyinfo->display; | |
158 | ||
159 | XGrabServer (dpy); | |
160 | dpyinfo->xsettings_window = XGetSelectionOwner (dpy, | |
161 | dpyinfo->Xatom_xsettings_sel); | |
162 | if (dpyinfo->xsettings_window != None) | |
163 | /* Select events so we can detect if window is deleted or if settings | |
164 | are changed. */ | |
165 | XSelectInput (dpy, dpyinfo->xsettings_window, | |
166 | PropertyChangeMask|StructureNotifyMask); | |
167 | ||
168 | XUngrabServer (dpy); | |
169 | } | |
170 | ||
637fa988 JD |
171 | #define SWAP32(nr) (((nr) << 24) | (((nr) << 8) & 0xff0000) \ |
172 | | (((nr) >> 8) & 0xff00) | ((nr) >> 24)) | |
173 | #define SWAP16(nr) (((nr) << 8) | ((nr) >> 8)) | |
174 | #define PAD(nr) (((nr) + 3) & ~3) | |
175 | ||
176 | /* Parse xsettings and extract those that deal with Xft. | |
177 | See http://freedesktop.org/wiki/Specifications/XSettingsRegistry | |
178 | and http://standards.freedesktop.org/xsettings-spec/xsettings-spec-0.5.html. | |
179 | ||
180 | Layout of prop. First is a header: | |
181 | ||
182 | bytes type what | |
183 | ------------------------------------ | |
184 | 1 CARD8 byte-order | |
185 | 3 unused | |
186 | 4 CARD32 SERIAL | |
187 | 4 CARD32 N_SETTINGS | |
188 | ||
189 | Then N_SETTINGS records, with header: | |
190 | ||
191 | bytes type what | |
192 | ------------------------------------ | |
193 | 1 SETTING_TYPE type (0 = integer, 1 = string, 2 RGB color). | |
194 | 1 unused | |
195 | 2 CARD16 n == name-length | |
196 | n STRING8 name | |
197 | p unused, p=pad_to_even_4(n) | |
198 | 4 CARD32 last-change-serial | |
199 | ||
200 | and then the value, For string: | |
af59aa6e | 201 | |
637fa988 JD |
202 | bytes type what |
203 | ------------------------------------ | |
204 | 4 CARD32 n = value-length | |
205 | n STRING8 value | |
206 | p unused, p=pad_to_even_4(n) | |
207 | ||
208 | For integer: | |
209 | ||
210 | bytes type what | |
211 | ------------------------------------ | |
212 | 4 INT32 value | |
213 | ||
214 | For RGB color: | |
215 | ||
216 | bytes type what | |
217 | ------------------------------------ | |
218 | 2 CARD16 red | |
219 | 2 CARD16 blue | |
220 | 2 CARD16 green | |
221 | 2 CARD16 alpha | |
222 | ||
3c055b77 | 223 | Returns non-zero if some Xft settings was seen, zero otherwise. |
637fa988 JD |
224 | */ |
225 | ||
226 | static int | |
e4c8d29a J |
227 | parse_settings (unsigned char *prop, |
228 | long unsigned int bytes, | |
229 | struct xsettings *settings) | |
637fa988 JD |
230 | { |
231 | Lisp_Object byteorder = Fbyteorder (); | |
232 | int my_bo = XFASTINT (byteorder) == 'B' ? MSBFirst : LSBFirst; | |
233 | int that_bo = prop[0]; | |
234 | CARD32 n_settings; | |
235 | int bytes_parsed = 0; | |
236 | int settings_seen = 0; | |
237 | int i = 0; | |
238 | ||
239 | /* First 4 bytes is a serial number, skip that. */ | |
240 | ||
241 | if (bytes < 12) return BadLength; | |
242 | memcpy (&n_settings, prop+8, 4); | |
243 | if (my_bo != that_bo) n_settings = SWAP32 (n_settings); | |
244 | bytes_parsed = 12; | |
245 | ||
246 | memset (settings, 0, sizeof (*settings)); | |
247 | ||
99852628 | 248 | while (bytes_parsed+4 < bytes && settings_seen < 7 |
637fa988 JD |
249 | && i < n_settings) |
250 | { | |
251 | int type = prop[bytes_parsed++]; | |
252 | CARD16 nlen; | |
253 | CARD32 vlen, ival = 0; | |
254 | char name[128]; /* The names we are looking for are not this long. */ | |
255 | char sval[128]; /* The values we are looking for are not this long. */ | |
99852628 | 256 | int want_this; |
637fa988 JD |
257 | int to_cpy; |
258 | ||
259 | sval[0] = '\0'; | |
260 | ++i; | |
261 | ++bytes_parsed; /* Padding */ | |
262 | ||
263 | memcpy (&nlen, prop+bytes_parsed, 2); | |
264 | bytes_parsed += 2; | |
265 | if (my_bo != that_bo) nlen = SWAP16 (nlen); | |
266 | if (bytes_parsed+nlen > bytes) return BadLength; | |
267 | to_cpy = nlen > 127 ? 127 : nlen; | |
268 | memcpy (name, prop+bytes_parsed, to_cpy); | |
269 | name[to_cpy] = '\0'; | |
270 | ||
271 | bytes_parsed += nlen; | |
272 | bytes_parsed = PAD (bytes_parsed); | |
273 | ||
274 | bytes_parsed += 4; /* Skip serial for this value */ | |
275 | if (bytes_parsed > bytes) return BadLength; | |
276 | ||
f904c0f9 JD |
277 | want_this = |
278 | #ifdef HAVE_XFT | |
279 | (nlen > 6 && strncmp (name, "Xft/", 4) == 0) | |
280 | || | |
281 | #endif | |
282 | (strcmp (XSETTINGS_FONT_NAME, name) == 0) | |
283 | || (strcmp (XSETTINGS_TOOL_BAR_STYLE, name) == 0); | |
637fa988 | 284 | |
af59aa6e | 285 | switch (type) |
637fa988 JD |
286 | { |
287 | case 0: /* Integer */ | |
288 | if (bytes_parsed+4 > bytes) return BadLength; | |
99852628 | 289 | if (want_this) |
637fa988 JD |
290 | { |
291 | memcpy (&ival, prop+bytes_parsed, 4); | |
292 | if (my_bo != that_bo) ival = SWAP32 (ival); | |
293 | } | |
294 | bytes_parsed += 4; | |
295 | break; | |
296 | ||
297 | case 1: /* String */ | |
298 | if (bytes_parsed+4 > bytes) return BadLength; | |
299 | memcpy (&vlen, prop+bytes_parsed, 4); | |
300 | bytes_parsed += 4; | |
301 | if (my_bo != that_bo) vlen = SWAP32 (vlen); | |
99852628 | 302 | if (want_this) |
637fa988 JD |
303 | { |
304 | to_cpy = vlen > 127 ? 127 : vlen; | |
305 | memcpy (sval, prop+bytes_parsed, to_cpy); | |
306 | sval[to_cpy] = '\0'; | |
307 | } | |
308 | bytes_parsed += vlen; | |
309 | bytes_parsed = PAD (bytes_parsed); | |
310 | break; | |
311 | ||
312 | case 2: /* RGB value */ | |
313 | /* No need to parse this */ | |
314 | if (bytes_parsed+8 > bytes) return BadLength; | |
af59aa6e | 315 | bytes_parsed += 8; /* 4 values (r, b, g, alpha), 2 bytes each. */ |
637fa988 JD |
316 | break; |
317 | ||
318 | default: /* Parse Error */ | |
319 | return BadValue; | |
320 | } | |
321 | ||
af59aa6e | 322 | if (want_this) |
637fa988 JD |
323 | { |
324 | ++settings_seen; | |
f904c0f9 JD |
325 | if (strcmp (name, XSETTINGS_FONT_NAME) == 0) |
326 | { | |
327 | settings->font = xstrdup (sval); | |
328 | settings->seen |= SEEN_FONT; | |
329 | } | |
330 | else if (strcmp (name, XSETTINGS_TOOL_BAR_STYLE) == 0) | |
331 | { | |
332 | settings->tb_style = xstrdup (sval); | |
333 | settings->seen |= SEEN_TB_STYLE; | |
334 | } | |
335 | #ifdef HAVE_XFT | |
336 | else if (strcmp (name, "Xft/Antialias") == 0) | |
3c055b77 JD |
337 | { |
338 | settings->seen |= SEEN_AA; | |
339 | settings->aa = ival != 0; | |
340 | } | |
637fa988 | 341 | else if (strcmp (name, "Xft/Hinting") == 0) |
3c055b77 JD |
342 | { |
343 | settings->seen |= SEEN_HINTING; | |
344 | settings->hinting = ival != 0; | |
345 | } | |
af59aa6e | 346 | # ifdef FC_HINT_STYLE |
637fa988 JD |
347 | else if (strcmp (name, "Xft/HintStyle") == 0) |
348 | { | |
3c055b77 | 349 | settings->seen |= SEEN_HINTSTYLE; |
637fa988 JD |
350 | if (strcmp (sval, "hintnone") == 0) |
351 | settings->hintstyle = FC_HINT_NONE; | |
352 | else if (strcmp (sval, "hintslight") == 0) | |
353 | settings->hintstyle = FC_HINT_SLIGHT; | |
354 | else if (strcmp (sval, "hintmedium") == 0) | |
355 | settings->hintstyle = FC_HINT_MEDIUM; | |
356 | else if (strcmp (sval, "hintfull") == 0) | |
357 | settings->hintstyle = FC_HINT_FULL; | |
3c055b77 JD |
358 | else |
359 | settings->seen &= ~SEEN_HINTSTYLE; | |
637fa988 | 360 | } |
af59aa6e | 361 | # endif |
637fa988 JD |
362 | else if (strcmp (name, "Xft/RGBA") == 0) |
363 | { | |
3c055b77 | 364 | settings->seen |= SEEN_RGBA; |
637fa988 JD |
365 | if (strcmp (sval, "none") == 0) |
366 | settings->rgba = FC_RGBA_NONE; | |
367 | else if (strcmp (sval, "rgb") == 0) | |
368 | settings->rgba = FC_RGBA_RGB; | |
369 | else if (strcmp (sval, "bgr") == 0) | |
370 | settings->rgba = FC_RGBA_BGR; | |
371 | else if (strcmp (sval, "vrgb") == 0) | |
372 | settings->rgba = FC_RGBA_VRGB; | |
373 | else if (strcmp (sval, "vbgr") == 0) | |
374 | settings->rgba = FC_RGBA_VBGR; | |
3c055b77 JD |
375 | else |
376 | settings->seen &= ~SEEN_RGBA; | |
637fa988 JD |
377 | } |
378 | else if (strcmp (name, "Xft/DPI") == 0) | |
3c055b77 JD |
379 | { |
380 | settings->seen |= SEEN_DPI; | |
381 | settings->dpi = (double)ival/1024.0; | |
382 | } | |
637fa988 JD |
383 | else if (strcmp (name, "Xft/lcdfilter") == 0) |
384 | { | |
3c055b77 | 385 | settings->seen |= SEEN_LCDFILTER; |
637fa988 JD |
386 | if (strcmp (sval, "none") == 0) |
387 | settings->lcdfilter = FC_LCD_NONE; | |
388 | else if (strcmp (sval, "lcddefault") == 0) | |
389 | settings->lcdfilter = FC_LCD_DEFAULT; | |
3c055b77 JD |
390 | else |
391 | settings->seen &= ~SEEN_LCDFILTER; | |
637fa988 | 392 | } |
f904c0f9 | 393 | #endif /* HAVE_XFT */ |
637fa988 JD |
394 | } |
395 | } | |
396 | ||
3c055b77 | 397 | return settings_seen; |
637fa988 JD |
398 | } |
399 | ||
400 | static int | |
971de7fb | 401 | read_settings (struct x_display_info *dpyinfo, struct xsettings *settings) |
637fa988 | 402 | { |
637fa988 JD |
403 | Atom act_type; |
404 | int act_form; | |
405 | unsigned long nitems, bytes_after; | |
406 | unsigned char *prop = NULL; | |
407 | Display *dpy = dpyinfo->display; | |
408 | int rc; | |
409 | ||
410 | x_catch_errors (dpy); | |
411 | rc = XGetWindowProperty (dpy, | |
412 | dpyinfo->xsettings_window, | |
413 | dpyinfo->Xatom_xsettings_prop, | |
414 | 0, LONG_MAX, False, AnyPropertyType, | |
415 | &act_type, &act_form, &nitems, &bytes_after, | |
416 | &prop); | |
417 | ||
418 | if (rc == Success && prop != NULL && act_form == 8 && nitems > 0 | |
419 | && act_type == dpyinfo->Xatom_xsettings_prop) | |
f904c0f9 | 420 | rc = parse_settings (prop, nitems, settings); |
637fa988 JD |
421 | |
422 | XFree (prop); | |
423 | ||
424 | x_uncatch_errors (); | |
425 | ||
3c055b77 | 426 | return rc != 0; |
637fa988 JD |
427 | } |
428 | ||
581e51e8 | 429 | |
637fa988 | 430 | static void |
e4c8d29a J |
431 | apply_xft_settings (struct x_display_info *dpyinfo, |
432 | int send_event_p, | |
433 | struct xsettings *settings) | |
637fa988 | 434 | { |
f904c0f9 | 435 | #ifdef HAVE_XFT |
637fa988 | 436 | FcPattern *pat; |
f904c0f9 | 437 | struct xsettings oldsettings; |
637fa988 JD |
438 | int changed = 0; |
439 | ||
637fa988 | 440 | memset (&oldsettings, 0, sizeof (oldsettings)); |
637fa988 JD |
441 | pat = FcPatternCreate (); |
442 | XftDefaultSubstitute (dpyinfo->display, | |
443 | XScreenNumberOfScreen (dpyinfo->screen), | |
444 | pat); | |
445 | FcPatternGetBool (pat, FC_ANTIALIAS, 0, &oldsettings.aa); | |
446 | FcPatternGetBool (pat, FC_HINTING, 0, &oldsettings.hinting); | |
af59aa6e | 447 | # ifdef FC_HINT_STYLE |
637fa988 | 448 | FcPatternGetInteger (pat, FC_HINT_STYLE, 0, &oldsettings.hintstyle); |
af59aa6e | 449 | # endif |
637fa988 JD |
450 | FcPatternGetInteger (pat, FC_LCD_FILTER, 0, &oldsettings.lcdfilter); |
451 | FcPatternGetInteger (pat, FC_RGBA, 0, &oldsettings.rgba); | |
452 | FcPatternGetDouble (pat, FC_DPI, 0, &oldsettings.dpi); | |
453 | ||
f904c0f9 | 454 | if ((settings->seen & SEEN_AA) != 0 && oldsettings.aa != settings->aa) |
637fa988 JD |
455 | { |
456 | FcPatternDel (pat, FC_ANTIALIAS); | |
f904c0f9 | 457 | FcPatternAddBool (pat, FC_ANTIALIAS, settings->aa); |
637fa988 | 458 | ++changed; |
f904c0f9 | 459 | oldsettings.aa = settings->aa; |
637fa988 | 460 | } |
67477f30 | 461 | |
f904c0f9 JD |
462 | if ((settings->seen & SEEN_HINTING) != 0 |
463 | && oldsettings.hinting != settings->hinting) | |
637fa988 JD |
464 | { |
465 | FcPatternDel (pat, FC_HINTING); | |
f904c0f9 | 466 | FcPatternAddBool (pat, FC_HINTING, settings->hinting); |
637fa988 | 467 | ++changed; |
f904c0f9 | 468 | oldsettings.hinting = settings->hinting; |
637fa988 | 469 | } |
f904c0f9 | 470 | if ((settings->seen & SEEN_RGBA) != 0 && oldsettings.rgba != settings->rgba) |
637fa988 JD |
471 | { |
472 | FcPatternDel (pat, FC_RGBA); | |
f904c0f9 JD |
473 | FcPatternAddInteger (pat, FC_RGBA, settings->rgba); |
474 | oldsettings.rgba = settings->rgba; | |
637fa988 JD |
475 | ++changed; |
476 | } | |
67477f30 | 477 | |
a6eb20d8 | 478 | /* Older fontconfig versions don't have FC_LCD_FILTER. */ |
f904c0f9 JD |
479 | if ((settings->seen & SEEN_LCDFILTER) != 0 |
480 | && oldsettings.lcdfilter != settings->lcdfilter) | |
637fa988 JD |
481 | { |
482 | FcPatternDel (pat, FC_LCD_FILTER); | |
f904c0f9 | 483 | FcPatternAddInteger (pat, FC_LCD_FILTER, settings->lcdfilter); |
637fa988 | 484 | ++changed; |
f904c0f9 | 485 | oldsettings.lcdfilter = settings->lcdfilter; |
637fa988 | 486 | } |
67477f30 | 487 | |
af59aa6e | 488 | # ifdef FC_HINT_STYLE |
f904c0f9 JD |
489 | if ((settings->seen & SEEN_HINTSTYLE) != 0 |
490 | && oldsettings.hintstyle != settings->hintstyle) | |
637fa988 JD |
491 | { |
492 | FcPatternDel (pat, FC_HINT_STYLE); | |
f904c0f9 | 493 | FcPatternAddInteger (pat, FC_HINT_STYLE, settings->hintstyle); |
637fa988 | 494 | ++changed; |
f904c0f9 | 495 | oldsettings.hintstyle = settings->hintstyle; |
637fa988 | 496 | } |
af59aa6e | 497 | # endif |
67477f30 | 498 | |
f904c0f9 JD |
499 | if ((settings->seen & SEEN_DPI) != 0 && oldsettings.dpi != settings->dpi |
500 | && settings->dpi > 0) | |
637fa988 JD |
501 | { |
502 | Lisp_Object frame, tail; | |
503 | ||
504 | FcPatternDel (pat, FC_DPI); | |
f904c0f9 | 505 | FcPatternAddDouble (pat, FC_DPI, settings->dpi); |
637fa988 | 506 | ++changed; |
f904c0f9 | 507 | oldsettings.dpi = settings->dpi; |
af59aa6e | 508 | |
637fa988 | 509 | /* Change the DPI on this display and all frames on the display. */ |
f904c0f9 | 510 | dpyinfo->resy = dpyinfo->resx = settings->dpi; |
637fa988 JD |
511 | FOR_EACH_FRAME (tail, frame) |
512 | if (FRAME_X_P (XFRAME (frame)) | |
513 | && FRAME_X_DISPLAY_INFO (XFRAME (frame)) == dpyinfo) | |
f904c0f9 | 514 | XFRAME (frame)->resy = XFRAME (frame)->resx = settings->dpi; |
637fa988 JD |
515 | } |
516 | ||
517 | if (changed) | |
518 | { | |
aaafe47a PE |
519 | static char const format[] = |
520 | "Antialias: %d, Hinting: %d, RGBA: %d, LCDFilter: %d, " | |
521 | "Hintstyle: %d, DPI: %lf"; | |
522 | enum | |
523 | { | |
524 | d_formats = 5, | |
525 | d_growth = INT_BUFSIZE_BOUND (int) - sizeof "%d", | |
526 | lf_formats = 1, | |
527 | max_f_integer_digits = DBL_MAX_10_EXP + 1, | |
528 | f_precision = 6, | |
529 | lf_growth = (sizeof "-." + max_f_integer_digits + f_precision | |
530 | - sizeof "%lf") | |
531 | }; | |
532 | char buf[sizeof format + d_formats * d_growth + lf_formats * lf_growth]; | |
533 | ||
637fa988 JD |
534 | XftDefaultSet (dpyinfo->display, pat); |
535 | if (send_event_p) | |
f904c0f9 JD |
536 | store_config_changed_event (Qfont_render, |
537 | XCAR (dpyinfo->name_list_element)); | |
aaafe47a PE |
538 | sprintf (buf, format, oldsettings.aa, oldsettings.hinting, |
539 | oldsettings.rgba, oldsettings.lcdfilter, | |
540 | oldsettings.hintstyle, oldsettings.dpi); | |
541 | Vxft_settings = build_string (buf); | |
637fa988 JD |
542 | } |
543 | else | |
544 | FcPatternDestroy (pat); | |
f904c0f9 | 545 | #endif /* HAVE_XFT */ |
637fa988 JD |
546 | } |
547 | ||
f904c0f9 | 548 | static void |
971de7fb | 549 | read_and_apply_settings (struct x_display_info *dpyinfo, int send_event_p) |
f904c0f9 JD |
550 | { |
551 | struct xsettings settings; | |
552 | Lisp_Object dpyname = XCAR (dpyinfo->name_list_element); | |
553 | ||
554 | if (!read_settings (dpyinfo, &settings)) | |
555 | return; | |
556 | ||
557 | apply_xft_settings (dpyinfo, True, &settings); | |
558 | if (settings.seen & SEEN_TB_STYLE) | |
559 | { | |
560 | Lisp_Object style = Qnil; | |
561 | if (strcmp (settings.tb_style, "both") == 0) | |
562 | style = Qboth; | |
563 | else if (strcmp (settings.tb_style, "both-horiz") == 0) | |
564 | style = Qboth_horiz; | |
565 | else if (strcmp (settings.tb_style, "icons") == 0) | |
566 | style = Qimage; | |
567 | else if (strcmp (settings.tb_style, "text") == 0) | |
568 | style = Qtext; | |
569 | if (!NILP (style) && !EQ (style, current_tool_bar_style)) | |
570 | { | |
571 | current_tool_bar_style = style; | |
572 | if (send_event_p) | |
573 | store_config_changed_event (Qtool_bar_style, dpyname); | |
574 | } | |
baad03f0 | 575 | xfree (settings.tb_style); |
f904c0f9 JD |
576 | } |
577 | ||
578 | if (settings.seen & SEEN_FONT) | |
579 | { | |
af59aa6e | 580 | if (!current_font || strcmp (current_font, settings.font) != 0) |
f904c0f9 | 581 | { |
baad03f0 | 582 | xfree (current_font); |
f904c0f9 JD |
583 | current_font = settings.font; |
584 | if (send_event_p) | |
585 | store_config_changed_event (Qfont_name, dpyname); | |
586 | } | |
587 | else | |
baad03f0 | 588 | xfree (settings.font); |
f904c0f9 JD |
589 | } |
590 | } | |
637fa988 JD |
591 | |
592 | void | |
971de7fb | 593 | xft_settings_event (struct x_display_info *dpyinfo, XEvent *event) |
637fa988 | 594 | { |
637fa988 | 595 | int check_window_p = 0; |
f904c0f9 | 596 | int apply_settings = 0; |
637fa988 JD |
597 | |
598 | switch (event->type) | |
599 | { | |
600 | case DestroyNotify: | |
601 | if (dpyinfo->xsettings_window == event->xany.window) | |
602 | check_window_p = 1; | |
603 | break; | |
604 | ||
605 | case ClientMessage: | |
606 | if (event->xclient.message_type == dpyinfo->Xatom_xsettings_mgr | |
607 | && event->xclient.data.l[1] == dpyinfo->Xatom_xsettings_sel | |
608 | && event->xclient.window == dpyinfo->root_window) | |
609 | check_window_p = 1; | |
610 | break; | |
611 | ||
612 | case PropertyNotify: | |
613 | if (event->xproperty.window == dpyinfo->xsettings_window | |
614 | && event->xproperty.state == PropertyNewValue | |
615 | && event->xproperty.atom == dpyinfo->Xatom_xsettings_prop) | |
f904c0f9 | 616 | apply_settings = 1; |
637fa988 JD |
617 | break; |
618 | } | |
619 | ||
f904c0f9 | 620 | |
637fa988 JD |
621 | if (check_window_p) |
622 | { | |
623 | dpyinfo->xsettings_window = None; | |
624 | get_prop_window (dpyinfo); | |
625 | if (dpyinfo->xsettings_window != None) | |
f904c0f9 | 626 | apply_settings = 1; |
637fa988 | 627 | } |
f904c0f9 JD |
628 | |
629 | if (apply_settings) | |
630 | read_and_apply_settings (dpyinfo, True); | |
637fa988 JD |
631 | } |
632 | ||
633 | ||
634 | static void | |
971de7fb | 635 | init_gconf (void) |
637fa988 | 636 | { |
0d1d0d26 | 637 | #if defined (HAVE_GCONF) && defined (HAVE_XFT) |
637fa988 | 638 | char *s; |
637fa988 | 639 | |
1e600395 | 640 | #ifdef HAVE_G_TYPE_INIT |
637fa988 | 641 | g_type_init (); |
1e600395 | 642 | #endif |
637fa988 JD |
643 | gconf_client = gconf_client_get_default (); |
644 | s = gconf_client_get_string (gconf_client, SYSTEM_MONO_FONT, NULL); | |
645 | if (s) | |
646 | { | |
647 | current_mono_font = xstrdup (s); | |
648 | g_free (s); | |
649 | } | |
99852628 JD |
650 | s = gconf_client_get_string (gconf_client, SYSTEM_FONT, NULL); |
651 | if (s) | |
652 | { | |
653 | current_font = xstrdup (s); | |
654 | g_free (s); | |
655 | } | |
637fa988 JD |
656 | gconf_client_set_error_handling (gconf_client, GCONF_CLIENT_HANDLE_NONE); |
657 | gconf_client_add_dir (gconf_client, | |
658 | SYSTEM_MONO_FONT, | |
659 | GCONF_CLIENT_PRELOAD_ONELEVEL, | |
660 | NULL); | |
661 | gconf_client_notify_add (gconf_client, | |
662 | SYSTEM_MONO_FONT, | |
663 | something_changedCB, | |
664 | NULL, NULL, NULL); | |
0d1d0d26 | 665 | #endif /* HAVE_GCONF && HAVE_XFT */ |
637fa988 JD |
666 | } |
667 | ||
668 | static void | |
971de7fb | 669 | init_xsettings (struct x_display_info *dpyinfo) |
637fa988 | 670 | { |
637fa988 JD |
671 | Display *dpy = dpyinfo->display; |
672 | ||
673 | BLOCK_INPUT; | |
674 | ||
637fa988 JD |
675 | /* Select events so we can detect client messages sent when selection |
676 | owner changes. */ | |
677 | XSelectInput (dpy, dpyinfo->root_window, StructureNotifyMask); | |
678 | ||
679 | get_prop_window (dpyinfo); | |
680 | if (dpyinfo->xsettings_window != None) | |
f904c0f9 | 681 | read_and_apply_settings (dpyinfo, False); |
637fa988 JD |
682 | |
683 | UNBLOCK_INPUT; | |
637fa988 JD |
684 | } |
685 | ||
686 | void | |
971de7fb | 687 | xsettings_initialize (struct x_display_info *dpyinfo) |
637fa988 JD |
688 | { |
689 | if (first_dpyinfo == NULL) first_dpyinfo = dpyinfo; | |
690 | init_gconf (); | |
f904c0f9 | 691 | init_xsettings (dpyinfo); |
637fa988 JD |
692 | } |
693 | ||
0d1d0d26 | 694 | const char * |
971de7fb | 695 | xsettings_get_system_font (void) |
0d1d0d26 JD |
696 | { |
697 | return current_mono_font; | |
698 | } | |
637fa988 | 699 | |
e87b6180 | 700 | #ifdef USE_LUCID |
99852628 | 701 | const char * |
971de7fb | 702 | xsettings_get_system_normal_font (void) |
99852628 JD |
703 | { |
704 | return current_font; | |
705 | } | |
e87b6180 | 706 | #endif |
99852628 JD |
707 | |
708 | DEFUN ("font-get-system-normal-font", Ffont_get_system_normal_font, | |
709 | Sfont_get_system_normal_font, | |
710 | 0, 0, 0, | |
bf935339 | 711 | doc: /* Get the system default application font. */) |
5842a27b | 712 | (void) |
99852628 | 713 | { |
2674ddc8 | 714 | return current_font ? build_string (current_font) : Qnil; |
99852628 JD |
715 | } |
716 | ||
637fa988 JD |
717 | DEFUN ("font-get-system-font", Ffont_get_system_font, Sfont_get_system_font, |
718 | 0, 0, 0, | |
bf935339 | 719 | doc: /* Get the system default fixed width font. */) |
5842a27b | 720 | (void) |
637fa988 | 721 | { |
2674ddc8 | 722 | return current_mono_font ? build_string (current_mono_font) : Qnil; |
637fa988 JD |
723 | } |
724 | ||
a7ca3326 | 725 | DEFUN ("tool-bar-get-system-style", Ftool_bar_get_system_style, |
16a97296 | 726 | Stool_bar_get_system_style, 0, 0, 0, |
f904c0f9 | 727 | doc: /* Get the system tool bar style. |
4721152c | 728 | If no system tool bar style is known, return `tool-bar-style' if set to a |
f904c0f9 | 729 | known style. Otherwise return image. */) |
5842a27b | 730 | (void) |
f904c0f9 JD |
731 | { |
732 | if (EQ (Vtool_bar_style, Qimage) | |
733 | || EQ (Vtool_bar_style, Qtext) | |
734 | || EQ (Vtool_bar_style, Qboth) | |
8a52f00a JD |
735 | || EQ (Vtool_bar_style, Qboth_horiz) |
736 | || EQ (Vtool_bar_style, Qtext_image_horiz)) | |
f904c0f9 JD |
737 | return Vtool_bar_style; |
738 | if (!NILP (current_tool_bar_style)) | |
739 | return current_tool_bar_style; | |
740 | return Qimage; | |
741 | } | |
742 | ||
637fa988 | 743 | void |
971de7fb | 744 | syms_of_xsettings (void) |
637fa988 JD |
745 | { |
746 | current_mono_font = NULL; | |
99852628 | 747 | current_font = NULL; |
637fa988 JD |
748 | first_dpyinfo = NULL; |
749 | #ifdef HAVE_GCONF | |
750 | gconf_client = NULL; | |
751 | #endif | |
752 | ||
f904c0f9 JD |
753 | Qmonospace_font_name = intern_c_string ("monospace-font-name"); |
754 | staticpro (&Qmonospace_font_name); | |
637fa988 JD |
755 | Qfont_name = intern_c_string ("font-name"); |
756 | staticpro (&Qfont_name); | |
757 | Qfont_render = intern_c_string ("font-render"); | |
758 | staticpro (&Qfont_render); | |
759 | defsubr (&Sfont_get_system_font); | |
99852628 | 760 | defsubr (&Sfont_get_system_normal_font); |
637fa988 | 761 | |
29208e82 | 762 | DEFVAR_BOOL ("font-use-system-font", use_system_font, |
bf935339 J |
763 | doc: /* *Non-nil means to apply the system defined font dynamically. |
764 | When this is non-nil and the system defined fixed width font changes, we | |
765 | update frames dynamically. | |
766 | If this variable is nil, Emacs ignores system font changes. */); | |
dfb3c4c6 JD |
767 | use_system_font = 0; |
768 | ||
29208e82 | 769 | DEFVAR_LISP ("xft-settings", Vxft_settings, |
67477f30 JD |
770 | doc: /* Font settings applied to Xft. */); |
771 | Vxft_settings = make_string ("", 0); | |
772 | ||
0d1d0d26 JD |
773 | #ifdef HAVE_XFT |
774 | Fprovide (intern_c_string ("font-render-setting"), Qnil); | |
637fa988 JD |
775 | #ifdef HAVE_GCONF |
776 | Fprovide (intern_c_string ("system-font-setting"), Qnil); | |
777 | #endif | |
637fa988 | 778 | #endif |
f904c0f9 JD |
779 | |
780 | current_tool_bar_style = Qnil; | |
781 | Qtool_bar_style = intern_c_string ("tool-bar-style"); | |
782 | staticpro (&Qtool_bar_style); | |
783 | defsubr (&Stool_bar_get_system_style); | |
784 | ||
785 | Fprovide (intern_c_string ("dynamic-setting"), Qnil); | |
637fa988 | 786 | } |