1 /* X-specific Lisp objects.
2 Copyright (C) 1993, 1994 Free Software Foundation, Inc.
3 Copyright (C) 1995 Board of Trustees, University of Illinois.
4 Copyright (C) 1995 Tinker Systems.
5 Copyright (C) 1995, 1996 Ben Wing.
6 Copyright (C) 1995 Sun Microsystems, Inc.
8 This file is part of XEmacs.
10 XEmacs is free software; you can redistribute it and/or modify it
11 under the terms of the GNU General Public License as published by the
12 Free Software Foundation; either version 2, or (at your option) any
15 XEmacs is distributed in the hope that it will be useful, but WITHOUT
16 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
17 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
20 You should have received a copy of the GNU General Public License
21 along with XEmacs; see the file COPYING. If not, write to
22 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
23 Boston, MA 02111-1307, USA. */
25 /* Synched up with: Not in FSF. */
27 /* Authors: Jamie Zawinski, Chuck Thompson, Ben Wing */
32 #include "console-x.h"
33 #include "objects-x.h"
39 int x_handle_non_fully_specified_fonts;
42 /************************************************************************/
44 /************************************************************************/
46 /* Replacement for XAllocColor() that tries to return the nearest
47 available color if the colormap is full. Original was from FSFmacs,
48 but rewritten by Jareth Hein <jareth@camelot-soft.com> 97/11/25
49 Modified by Lee Kindness <lkindness@csl.co.uk> 31/08/99 to handle previous
50 total failure which was due to a read/write colorcell being the nearest
51 match - tries the next nearest...
53 Return value is 1 for normal success, 2 for nearest color success,
54 3 for Non-deallocable sucess. */
56 allocate_nearest_color (Display *display, Colormap colormap, Visual *visual,
61 if (visual->class == DirectColor || visual->class == TrueColor)
63 if (XAllocColor (display, colormap, color_def) != 0)
69 /* We're dealing with a TrueColor/DirectColor visual, so play games
70 with the RGB values in the XColor struct. */
71 /* #### JH: I'm not sure how a call to XAllocColor can fail in a
72 TrueColor or DirectColor visual, so I will just reformat the
73 request to match the requirements of the visual, and re-issue
74 the request. If this fails for anybody, I wanna know about it
75 so I can come up with a better plan */
77 unsigned long rshift,gshift,bshift,rbits,gbits,bbits,junk;
78 junk = visual->red_mask;
80 while ((junk & 0x1) == 0) {
89 junk = visual->green_mask;
91 while ((junk & 0x1) == 0) {
100 junk = visual->blue_mask;
102 while ((junk & 0x1) == 0) {
112 color_def->red = color_def->red >> (16 - rbits);
113 color_def->green = color_def->green >> (16 - gbits);
114 color_def->blue = color_def->blue >> (16 - bbits);
115 if (XAllocColor (display, colormap, color_def) != 0)
120 /* #### JH: I'm punting here, knowing that doing this will at
121 least draw the color correctly. However, unless we convert
122 all of the functions that allocate colors (graphics
123 libraries, etc) to use this function doing this is very
124 likely to cause problems later... */
127 rd = color_def->red << (rbits - 8);
129 rd = color_def->red >> (8 - rbits);
131 gr = color_def->green << (gbits - 8);
133 gr = color_def->green >> (8 - gbits);
135 bl = color_def->blue << (bbits - 8);
137 bl = color_def->blue >> (8 - bbits);
138 color_def->pixel = (rd << rshift) | (gr << gshift) | (bl << bshift);
145 XColor *cells = NULL;
146 /* JH: I can't believe there's no way to go backwards from a
147 colormap ID and get its visual and number of entries, but X
148 apparently isn't built that way... */
149 int no_cells = visual->map_entries;
152 if (XAllocColor (display, colormap, color_def) != 0)
154 else while( status != 2 )
156 /* If we got to this point, the colormap is full, so we're
157 going to try and get the next closest color. The algorithm used
158 is a least-squares matching, which is what X uses for closest
159 color matching with StaticColor visuals. */
161 long nearest_delta, trial_delta;
166 cells = alloca_array (XColor, no_cells);
167 for (x = 0; x < no_cells; x++)
170 /* read the current colormap */
171 XQueryColors (display, colormap, cells, no_cells);
175 /* I'm assuming CSE so I'm not going to condense this. */
176 nearest_delta = ((((color_def->red >> 8) - (cells[0].red >> 8))
177 * ((color_def->red >> 8) - (cells[0].red >> 8)))
179 (((color_def->green >> 8) - (cells[0].green >> 8))
180 * ((color_def->green >> 8) - (cells[0].green >> 8)))
182 (((color_def->blue >> 8) - (cells[0].blue >> 8))
183 * ((color_def->blue >> 8) - (cells[0].blue >> 8))));
184 for (x = 1; x < no_cells; x++)
186 trial_delta = ((((color_def->red >> 8) - (cells[x].red >> 8))
187 * ((color_def->red >> 8) - (cells[x].red >> 8)))
189 (((color_def->green >> 8) - (cells[x].green >> 8))
190 * ((color_def->green >> 8) - (cells[x].green >> 8)))
192 (((color_def->blue >> 8) - (cells[x].blue >> 8))
193 * ((color_def->blue >> 8) - (cells[x].blue >> 8))));
195 /* less? Ignore cells marked as previously failing */
196 if( (trial_delta < nearest_delta) &&
197 (cells[x].pixel != ULONG_MAX) )
200 nearest_delta = trial_delta;
203 color_def->red = cells[nearest].red;
204 color_def->green = cells[nearest].green;
205 color_def->blue = cells[nearest].blue;
206 if (XAllocColor (display, colormap, color_def) != 0)
209 /* LSK: Either the colour map has changed since
210 * we read it, or the colour is allocated
211 * read/write... Mark this cmap entry so it's
212 * ignored in the next iteration.
214 cells[nearest].pixel = ULONG_MAX;
221 x_parse_nearest_color (struct device *d, XColor *color, Bufbyte *name,
222 Bytecount len, Error_behavior errb)
224 Display *dpy = DEVICE_X_DISPLAY (d);
225 Colormap cmap = DEVICE_X_COLORMAP (d);
226 Visual *visual = DEVICE_X_VISUAL (d);
231 const Extbyte *extname;
234 TO_EXTERNAL_FORMAT (DATA, (name, len),
235 ALLOCA, (extname, extnamelen),
237 result = XParseColor (dpy, cmap, (char *) extname, color);
241 maybe_signal_simple_error ("Unrecognized color", make_string (name, len),
245 result = allocate_nearest_color (dpy, cmap, visual, color);
248 maybe_signal_simple_error ("Couldn't allocate color",
249 make_string (name, len), Qcolor, errb);
257 x_initialize_color_instance (Lisp_Color_Instance *c, Lisp_Object name,
258 Lisp_Object device, Error_behavior errb)
263 result = x_parse_nearest_color (XDEVICE (device), &color,
265 XSTRING_LENGTH (name),
271 /* Don't allocate the data until we're sure that we will succeed,
272 or the finalize method may get fucked. */
273 c->data = xnew (struct x_color_instance_data);
275 COLOR_INSTANCE_X_DEALLOC (c) = 0;
277 COLOR_INSTANCE_X_DEALLOC (c) = 1;
278 COLOR_INSTANCE_X_COLOR (c) = color;
283 x_print_color_instance (Lisp_Color_Instance *c,
284 Lisp_Object printcharfun,
288 XColor color = COLOR_INSTANCE_X_COLOR (c);
289 sprintf (buf, " %ld=(%X,%X,%X)",
290 color.pixel, color.red, color.green, color.blue);
291 write_c_string (buf, printcharfun);
295 x_finalize_color_instance (Lisp_Color_Instance *c)
299 if (DEVICE_LIVE_P (XDEVICE (c->device)))
301 if (COLOR_INSTANCE_X_DEALLOC (c))
303 XFreeColors (DEVICE_X_DISPLAY (XDEVICE (c->device)), DEVICE_X_COLORMAP (XDEVICE (c->device)),
304 &COLOR_INSTANCE_X_COLOR (c).pixel, 1, 0);
312 /* Color instances are equal if they resolve to the same color on the
313 screen (have the same RGB values). I imagine that
314 "same RGB values" == "same cell in the colormap." Arguably we should
315 be comparing their names or pixel values instead. */
318 x_color_instance_equal (Lisp_Color_Instance *c1,
319 Lisp_Color_Instance *c2,
322 XColor color1 = COLOR_INSTANCE_X_COLOR (c1);
323 XColor color2 = COLOR_INSTANCE_X_COLOR (c2);
324 return ((color1.red == color2.red) &&
325 (color1.green == color2.green) &&
326 (color1.blue == color2.blue));
330 x_color_instance_hash (Lisp_Color_Instance *c, int depth)
332 XColor color = COLOR_INSTANCE_X_COLOR (c);
333 return HASH3 (color.red, color.green, color.blue);
337 x_color_instance_rgb_components (Lisp_Color_Instance *c)
339 XColor color = COLOR_INSTANCE_X_COLOR (c);
340 return (list3 (make_int (color.red),
341 make_int (color.green),
342 make_int (color.blue)));
346 x_valid_color_name_p (struct device *d, Lisp_Object color)
349 Display *dpy = DEVICE_X_DISPLAY (d);
350 Colormap cmap = DEVICE_X_COLORMAP (d);
354 TO_EXTERNAL_FORMAT (LISP_STRING, color, C_STRING_ALLOCA, extname, Qctext);
356 return XParseColor (dpy, cmap, extname, &c);
360 /************************************************************************/
362 /************************************************************************/
365 x_initialize_font_instance (Lisp_Font_Instance *f, Lisp_Object name,
366 Lisp_Object device, Error_behavior errb)
368 Display *dpy = DEVICE_X_DISPLAY (XDEVICE (device));
372 TO_EXTERNAL_FORMAT (LISP_STRING, f->name, C_STRING_ALLOCA, extname, Qctext);
373 xf = XLoadQueryFont (dpy, extname);
377 maybe_signal_simple_error ("Couldn't load font", f->name,
382 if (!xf->max_bounds.width)
384 /* yes, this has been known to happen. */
386 maybe_signal_simple_error ("X font is too small", f->name,
391 /* Don't allocate the data until we're sure that we will succeed,
392 or the finalize method may get fucked. */
393 f->data = xnew (struct x_font_instance_data);
394 FONT_INSTANCE_X_TRUENAME (f) = Qnil;
395 FONT_INSTANCE_X_FONT (f) = xf;
396 f->ascent = xf->ascent;
397 f->descent = xf->descent;
398 f->height = xf->ascent + xf->descent;
400 /* following change suggested by Ted Phelps <phelps@dstc.edu.au> */
401 unsigned int def_char = 'n'; /*xf->default_char;*/
402 unsigned int byte1, byte2;
405 byte1 = def_char >> 8;
406 byte2 = def_char & 0xFF;
410 /* Old versions of the R5 font server have garbage (>63k) as
411 def_char. 'n' might not be a valid character. */
412 if (byte1 < xf->min_byte1 ||
413 byte1 > xf->max_byte1 ||
414 byte2 < xf->min_char_or_byte2 ||
415 byte2 > xf->max_char_or_byte2)
418 f->width = xf->per_char[(byte1 - xf->min_byte1) *
419 (xf->max_char_or_byte2 -
420 xf->min_char_or_byte2 + 1) +
421 (byte2 - xf->min_char_or_byte2)].width;
424 f->width = xf->max_bounds.width;
426 /* Some fonts have a default char whose width is 0. This is no good.
427 If that's the case, first try 'n' as the default char, and if n has
428 0 width too (unlikely) then just use the max width. */
431 if (def_char == xf->default_char)
432 f->width = xf->max_bounds.width;
435 def_char = xf->default_char;
440 /* If all characters don't exist then there could potentially be
441 0-width characters lurking out there. Not setting this flag
442 trips an optimization that would make them appear to have width
443 to redisplay. This is bad. So we set it if not all characters
444 have the same width or if not all characters are defined.
446 /* #### This sucks. There is a measurable performance increase
447 when using proportional width fonts if this flag is not set.
448 Unfortunately so many of the fucking X fonts are not fully
449 defined that we could almost just get rid of this damn flag and
450 make it an assertion. */
451 f->proportional_p = (xf->min_bounds.width != xf->max_bounds.width ||
452 (x_handle_non_fully_specified_fonts &&
453 !xf->all_chars_exist));
459 x_mark_font_instance (Lisp_Font_Instance *f)
461 mark_object (FONT_INSTANCE_X_TRUENAME (f));
465 x_print_font_instance (Lisp_Font_Instance *f,
466 Lisp_Object printcharfun,
470 sprintf (buf, " 0x%lx", (unsigned long) FONT_INSTANCE_X_FONT (f)->fid);
471 write_c_string (buf, printcharfun);
475 x_finalize_font_instance (Lisp_Font_Instance *f)
480 if (DEVICE_LIVE_P (XDEVICE (f->device)))
482 Display *dpy = DEVICE_X_DISPLAY (XDEVICE (f->device));
484 XFreeFont (dpy, FONT_INSTANCE_X_FONT (f));
491 /* Determining the truename of a font is hard. (Big surprise.)
493 By "truename" we mean an XLFD-form name which contains no wildcards, yet
494 which resolves to *exactly* the same font as the one which we already have
495 the (probably wildcarded) name and `XFontStruct' of.
497 One might think that the first font returned by XListFonts would be the one
498 that XOpenFont would pick. Apparently this is the case on some servers,
499 but not on others. It would seem not to be specified.
501 The MIT R5 server sometimes appears to be picking the lexicographically
502 smallest font which matches the name (thus picking "adobe" fonts before
503 "bitstream" fonts even if the bitstream fonts are earlier in the path, and
504 also picking 100dpi adobe fonts over 75dpi adobe fonts even though the
505 75dpi are in the path earlier) but sometimes appears to be doing something
506 else entirely (for example, removing the bitsream fonts from the path will
507 cause the 75dpi adobe fonts to be used instead of the 100dpi, even though
508 their relative positions in the path (and their names!) have not changed).
510 The documentation for XSetFontPath() seems to indicate that the order of
511 entries in the font path means something, but it's pretty noncommital about
512 it, and the spirit of the law is apparently not being obeyed...
514 All the fonts I've seen have a property named `FONT' which contains the
515 truename of the font. However, there are two problems with using this: the
516 first is that the X Protocol Document is quite explicit that all properties
517 are optional, so we can't depend on it being there. The second is that
518 it's conceivable that this alleged truename isn't actually accessible as a
519 font, due to some difference of opinion between the font designers and
520 whoever installed the font on the system.
522 So, our first attempt is to look for a FONT property, and then verify that
523 the name there is a valid name by running XListFonts on it. There's still
524 the potential that this could be true but we could still be being lied to,
525 but that seems pretty remote.
527 Late breaking news: I've gotten reports that SunOS 4.1.3U1
528 with OpenWound 3.0 has a font whose truename is really
529 "-Adobe-Courier-Medium-R-Normal--12-120-75-75-M-70-ISO8859-1"
530 but whose FONT property contains "Courier".
532 So we disbelieve the FONT property unless it begins with a dash and
533 is more than 30 characters long. X Windows: The defacto substandard.
534 X Windows: Complex nonsolutions to simple nonproblems. X Windows:
537 If the FONT property doesn't exist, then we try and construct an XLFD name
538 out of the other font properties (FOUNDRY, FAMILY_NAME, WEIGHT_NAME, etc).
539 This is necessary at least for some versions of OpenWound. But who knows
540 what the future will bring.
542 If that doesn't work, then we use XListFonts and either take the first font
543 (which I think is the most sensible thing) or we find the lexicographically
544 least, depending on whether the preprocessor constant `XOPENFONT_SORTS' is
545 defined. This sucks because the two behaviors are a property of the server
546 being used, not the architecture on which emacs has been compiled. Also,
547 as I described above, sorting isn't ALWAYS what the server does. Really it
548 does something seemingly random. There is no reliable way to win if the
549 FONT property isn't present.
551 Another possibility which I haven't bothered to implement would be to map
552 over all of the matching fonts and find the first one that has the same
553 character metrics as the font we already have loaded. Even if this didn't
554 return exactly the same font, it would at least return one whose characters
555 were the same sizes, which would probably be good enough.
557 More late-breaking news: on RS/6000 AIX 3.2.4, the expression
558 XLoadQueryFont (dpy, "-*-Fixed-Medium-R-*-*-*-130-75-75-*-*-ISO8859-1")
559 actually returns the font
560 -Misc-Fixed-Medium-R-Normal--13-120-75-75-C-80-ISO8859-1
561 which is crazy, because that font doesn't even match that pattern! It is
562 also not included in the output produced by `xlsfonts' with that pattern.
564 So this is yet another example of XListFonts() and XOpenFont() using
565 completely different algorithms. This, however, is a goofier example of
566 this bug, because in this case, it's not just the search order that is
567 different -- the sets don't even intersect.
569 If anyone has any better ideas how to do this, or any insights on what it is
570 that the various servers are actually doing, please let me know! -- jwz. */
573 valid_x_font_name_p (Display *dpy, char *name)
575 /* Maybe this should be implemented by calling XLoadFont and trapping
576 the error. That would be a lot of work, and wasteful as hell, but
577 might be more correct.
583 names = XListFonts (dpy, name, 1, &nnames);
585 XFreeFontNames (names);
586 return (nnames != 0);
590 truename_via_FONT_prop (Display *dpy, XFontStruct *font)
592 unsigned long value = 0;
594 if (XGetFontProperty (font, XA_FONT, &value))
595 result = XGetAtomName (dpy, value);
596 /* result is now 0, or the string value of the FONT property. */
599 /* Verify that result is an XLFD name (roughly...) */
600 if (result [0] != '-' || strlen (result) < (unsigned int) 30)
606 return result; /* this must be freed by caller if non-0 */
610 truename_via_random_props (Display *dpy, XFontStruct *font)
612 struct device *d = get_device_from_display (dpy);
613 unsigned long value = 0;
614 char *foundry, *family, *weight, *slant, *setwidth, *add_style;
615 unsigned long pixel, point, res_x, res_y;
617 unsigned long avg_width;
618 char *registry, *encoding;
619 char composed_name [2048];
623 #define get_string(atom,var) \
624 if (XGetFontProperty (font, (atom), &value)) \
625 var = XGetAtomName (dpy, value); \
629 #define get_number(atom,var) \
630 if (!XGetFontProperty (font, (atom), &var) || \
634 foundry = family = weight = slant = setwidth = 0;
635 add_style = spacing = registry = encoding = 0;
637 get_string (DEVICE_XATOM_FOUNDRY (d), foundry);
638 get_string (DEVICE_XATOM_FAMILY_NAME (d), family);
639 get_string (DEVICE_XATOM_WEIGHT_NAME (d), weight);
640 get_string (DEVICE_XATOM_SLANT (d), slant);
641 get_string (DEVICE_XATOM_SETWIDTH_NAME (d), setwidth);
642 get_string (DEVICE_XATOM_ADD_STYLE_NAME (d), add_style);
643 get_number (DEVICE_XATOM_PIXEL_SIZE (d), pixel);
644 get_number (DEVICE_XATOM_POINT_SIZE (d), point);
645 get_number (DEVICE_XATOM_RESOLUTION_X (d), res_x);
646 get_number (DEVICE_XATOM_RESOLUTION_Y (d), res_y);
647 get_string (DEVICE_XATOM_SPACING (d), spacing);
648 get_number (DEVICE_XATOM_AVERAGE_WIDTH (d), avg_width);
649 get_string (DEVICE_XATOM_CHARSET_REGISTRY (d), registry);
650 get_string (DEVICE_XATOM_CHARSET_ENCODING (d), encoding);
654 sprintf (composed_name,
655 "-%s-%s-%s-%s-%s-%s-%ld-%ld-%ld-%ld-%s-%ld-%s-%s",
656 foundry, family, weight, slant, setwidth, add_style, pixel,
657 point, res_x, res_y, spacing, avg_width, registry, encoding);
663 int L = strlen (composed_name) + 1;
664 result = (char *) xmalloc (L);
665 strncpy (result, composed_name, L);
670 if (foundry) XFree (foundry);
671 if (family) XFree (family);
672 if (weight) XFree (weight);
673 if (slant) XFree (slant);
674 if (setwidth) XFree (setwidth);
675 if (add_style) XFree (add_style);
676 if (spacing) XFree (spacing);
677 if (registry) XFree (registry);
678 if (encoding) XFree (encoding);
683 /* Unbounded, for sufficiently small values of infinity... */
684 #define MAX_FONT_COUNT 5000
687 truename_via_XListFonts (Display *dpy, char *font_name)
693 #ifndef XOPENFONT_SORTS
694 /* In a sensible world, the first font returned by XListFonts()
695 would be the font that XOpenFont() would use. */
696 names = XListFonts (dpy, font_name, 1, &count);
697 if (count) result = names [0];
699 /* But the world I live in is much more perverse. */
700 names = XListFonts (dpy, font_name, MAX_FONT_COUNT, &count);
702 /* If names[count] is lexicographically less than result, use it.
703 (#### Should we be comparing case-insensitively?) */
704 if (result == 0 || (strcmp (result, names [count]) < 0))
705 result = names [count];
709 result = xstrdup (result);
711 XFreeFontNames (names);
713 return result; /* this must be freed by caller if non-0 */
717 x_font_truename (Display *dpy, char *name, XFontStruct *font)
719 char *truename_FONT = 0;
720 char *truename_random = 0;
723 /* The search order is:
724 - if FONT property exists, and is a valid name, return it.
725 - if the other props exist, and add up to a valid name, return it.
726 - if we find a matching name with XListFonts, return it.
727 - if FONT property exists, return it regardless.
728 - if other props exist, return the resultant name regardless.
732 truename = truename_FONT = truename_via_FONT_prop (dpy, font);
733 if (truename && !valid_x_font_name_p (dpy, truename))
736 truename = truename_random = truename_via_random_props (dpy, font);
737 if (truename && !valid_x_font_name_p (dpy, truename))
739 if (!truename && name)
740 truename = truename_via_XListFonts (dpy, name);
744 /* Gag - we weren't able to find a seemingly-valid truename.
745 Well, maybe we're on one of those braindead systems where
746 XListFonts() and XLoadFont() are in violent disagreement.
747 If we were able to compute a truename, try using that even
748 if evidence suggests that it's not a valid name - because
749 maybe it is, really, and that's better than nothing.
750 X Windows: You'll envy the dead.
753 truename = truename_FONT;
754 else if (truename_random)
755 truename = truename_random;
758 /* One or both of these are not being used - free them. */
759 if (truename_FONT && truename_FONT != truename)
760 XFree (truename_FONT);
761 if (truename_random && truename_random != truename)
762 XFree (truename_random);
766 Lisp_Object result = build_string (truename);
775 x_font_instance_truename (Lisp_Font_Instance *f, Error_behavior errb)
777 struct device *d = XDEVICE (f->device);
779 if (NILP (FONT_INSTANCE_X_TRUENAME (f)))
781 Display *dpy = DEVICE_X_DISPLAY (d);
782 char *name = (char *) XSTRING_DATA (f->name);
784 FONT_INSTANCE_X_TRUENAME (f) =
785 x_font_truename (dpy, name, FONT_INSTANCE_X_FONT (f));
787 if (NILP (FONT_INSTANCE_X_TRUENAME (f)))
789 Lisp_Object font_instance;
790 XSETFONT_INSTANCE (font_instance, f);
792 maybe_signal_simple_error ("Couldn't determine font truename",
793 font_instance, Qfont, errb);
794 /* Ok, just this once, return the font name as the truename.
795 (This is only used by Fequal() right now.) */
799 return (FONT_INSTANCE_X_TRUENAME (f));
803 x_font_instance_properties (Lisp_Font_Instance *f)
805 struct device *d = XDEVICE (f->device);
807 Lisp_Object result = Qnil;
811 dpy = DEVICE_X_DISPLAY (d);
812 props = FONT_INSTANCE_X_FONT (f)->properties;
813 for (i = FONT_INSTANCE_X_FONT (f)->n_properties - 1; i >= 0; i--)
817 Lisp_Object name, value;
818 Atom atom = props [i].name;
819 name_str = XGetAtomName (dpy, atom);
820 name = (name_str ? intern (name_str) : Qnil);
823 atom == DEVICE_XATOM_FOUNDRY (d) ||
824 atom == DEVICE_XATOM_FAMILY_NAME (d) ||
825 atom == DEVICE_XATOM_WEIGHT_NAME (d) ||
826 atom == DEVICE_XATOM_SLANT (d) ||
827 atom == DEVICE_XATOM_SETWIDTH_NAME (d) ||
828 atom == DEVICE_XATOM_ADD_STYLE_NAME (d) ||
829 atom == DEVICE_XATOM_SPACING (d) ||
830 atom == DEVICE_XATOM_CHARSET_REGISTRY (d) ||
831 atom == DEVICE_XATOM_CHARSET_ENCODING (d) ||
832 !strcmp (name_str, "CHARSET_COLLECTIONS") ||
833 !strcmp (name_str, "FONTNAME_REGISTRY") ||
834 !strcmp (name_str, "CLASSIFICATION") ||
835 !strcmp (name_str, "COPYRIGHT") ||
836 !strcmp (name_str, "DEVICE_FONT_NAME") ||
837 !strcmp (name_str, "FULL_NAME") ||
838 !strcmp (name_str, "MONOSPACED") ||
839 !strcmp (name_str, "QUALITY") ||
840 !strcmp (name_str, "RELATIVE_SET") ||
841 !strcmp (name_str, "RELATIVE_WEIGHT") ||
842 !strcmp (name_str, "STYLE")))
844 val_str = XGetAtomName (dpy, props [i].card32);
845 value = (val_str ? build_string (val_str) : Qnil);
848 value = make_int (props [i].card32);
849 if (name_str) XFree (name_str);
850 result = Fcons (Fcons (name, value), result);
856 x_list_fonts (Lisp_Object pattern, Lisp_Object device)
860 Lisp_Object result = Qnil;
861 const char *patternext;
863 TO_EXTERNAL_FORMAT (LISP_STRING, pattern,
864 C_STRING_ALLOCA, patternext,
867 names = XListFonts (DEVICE_X_DISPLAY (XDEVICE (device)),
868 patternext, MAX_FONT_COUNT, &count);
870 result = Fcons (build_ext_string (names [count], Qbinary), result);
872 XFreeFontNames (names);
879 x_font_spec_matches_charset (struct device *d, Lisp_Object charset,
880 const Bufbyte *nonreloc, Lisp_Object reloc,
881 Bytecount offset, Bytecount length)
883 if (UNBOUNDP (charset))
885 /* Hack! Short font names don't have the registry in them,
886 so we just assume the user knows what they're doing in the
887 case of ASCII. For other charsets, you gotta give the
888 long form; sorry buster.
890 if (EQ (charset, Vcharset_ascii))
892 const Bufbyte *the_nonreloc = nonreloc;
894 Bytecount the_length = length;
897 the_nonreloc = XSTRING_DATA (reloc);
898 fixup_internal_substring (nonreloc, reloc, offset, &the_length);
899 the_nonreloc += offset;
900 if (!memchr (the_nonreloc, '*', the_length))
904 const Bufbyte *new_nonreloc = (const Bufbyte *)
905 memchr (the_nonreloc, '-', the_length);
909 the_length -= new_nonreloc - the_nonreloc;
910 the_nonreloc = new_nonreloc;
913 /* If it has less than 5 dashes, it's a short font.
914 Of course, long fonts always have 14 dashes or so, but short
915 fonts never have more than 1 or 2 dashes, so this is some
916 sort of reasonable heuristic. */
922 return (fast_string_match (XCHARSET_REGISTRY (charset),
923 nonreloc, reloc, offset, length, 1,
927 /* find a font spec that matches font spec FONT and also matches
928 (the registry of) CHARSET. */
930 x_find_charset_font (Lisp_Object device, Lisp_Object font, Lisp_Object charset)
934 Lisp_Object result = Qnil;
935 const char *patternext;
938 TO_EXTERNAL_FORMAT (LISP_STRING, font,
939 C_STRING_ALLOCA, patternext,
942 names = XListFonts (DEVICE_X_DISPLAY (XDEVICE (device)),
943 patternext, MAX_FONT_COUNT, &count);
944 /* #### This code seems awfully bogus -- mrb */
945 for (i = 0; i < count; i ++)
949 TO_INTERNAL_FORMAT (C_STRING, names[i],
950 C_STRING_ALLOCA, intname,
952 if (x_font_spec_matches_charset (XDEVICE (device), charset,
953 (Bufbyte *) intname, Qnil, 0, -1))
955 result = build_string (intname);
961 XFreeFontNames (names);
963 /* Check for a short font name. */
965 && x_font_spec_matches_charset (XDEVICE (device), charset, 0,
975 /************************************************************************/
977 /************************************************************************/
980 syms_of_objects_x (void)
985 console_type_create_objects_x (void)
989 CONSOLE_HAS_METHOD (x, initialize_color_instance);
990 CONSOLE_HAS_METHOD (x, print_color_instance);
991 CONSOLE_HAS_METHOD (x, finalize_color_instance);
992 CONSOLE_HAS_METHOD (x, color_instance_equal);
993 CONSOLE_HAS_METHOD (x, color_instance_hash);
994 CONSOLE_HAS_METHOD (x, color_instance_rgb_components);
995 CONSOLE_HAS_METHOD (x, valid_color_name_p);
997 CONSOLE_HAS_METHOD (x, initialize_font_instance);
998 CONSOLE_HAS_METHOD (x, mark_font_instance);
999 CONSOLE_HAS_METHOD (x, print_font_instance);
1000 CONSOLE_HAS_METHOD (x, finalize_font_instance);
1001 CONSOLE_HAS_METHOD (x, font_instance_truename);
1002 CONSOLE_HAS_METHOD (x, font_instance_properties);
1003 CONSOLE_HAS_METHOD (x, list_fonts);
1005 CONSOLE_HAS_METHOD (x, find_charset_font);
1006 CONSOLE_HAS_METHOD (x, font_spec_matches_charset);
1011 vars_of_objects_x (void)
1013 DEFVAR_BOOL ("x-handle-non-fully-specified-fonts",
1014 &x_handle_non_fully_specified_fonts /*
1015 If this is true then fonts which do not have all characters specified
1016 will be considered to be proportional width even if they are actually
1017 fixed-width. If this is not done then characters which are supposed to
1018 have 0 width may appear to actually have some width.
1020 Note: While setting this to t guarantees correct output in all
1021 circumstances, it also causes a noticeable performance hit when using
1022 fixed-width fonts. Since most people don't use characters which could
1023 cause problems this is set to nil by default.
1025 x_handle_non_fully_specified_fonts = 0;
1029 Xatoms_of_objects_x (struct device *d)
1031 Display *D = DEVICE_X_DISPLAY (d);
1033 DEVICE_XATOM_FOUNDRY (d) = XInternAtom (D, "FOUNDRY", False);
1034 DEVICE_XATOM_FAMILY_NAME (d) = XInternAtom (D, "FAMILY_NAME", False);
1035 DEVICE_XATOM_WEIGHT_NAME (d) = XInternAtom (D, "WEIGHT_NAME", False);
1036 DEVICE_XATOM_SLANT (d) = XInternAtom (D, "SLANT", False);
1037 DEVICE_XATOM_SETWIDTH_NAME (d) = XInternAtom (D, "SETWIDTH_NAME", False);
1038 DEVICE_XATOM_ADD_STYLE_NAME (d) = XInternAtom (D, "ADD_STYLE_NAME", False);
1039 DEVICE_XATOM_PIXEL_SIZE (d) = XInternAtom (D, "PIXEL_SIZE", False);
1040 DEVICE_XATOM_POINT_SIZE (d) = XInternAtom (D, "POINT_SIZE", False);
1041 DEVICE_XATOM_RESOLUTION_X (d) = XInternAtom (D, "RESOLUTION_X", False);
1042 DEVICE_XATOM_RESOLUTION_Y (d) = XInternAtom (D, "RESOLUTION_Y", False);
1043 DEVICE_XATOM_SPACING (d) = XInternAtom (D, "SPACING", False);
1044 DEVICE_XATOM_AVERAGE_WIDTH (d) = XInternAtom (D, "AVERAGE_WIDTH", False);
1045 DEVICE_XATOM_CHARSET_REGISTRY(d) = XInternAtom (D, "CHARSET_REGISTRY",False);
1046 DEVICE_XATOM_CHARSET_ENCODING(d) = XInternAtom (D, "CHARSET_ENCODING",False);