1 /* Generic Objects and Functions.
2 Copyright (C) 1995 Free Software Foundation, Inc.
3 Copyright (C) 1995 Board of Trustees, University of Illinois.
4 Copyright (C) 1995, 1996 Ben Wing.
6 This file is part of XEmacs.
8 XEmacs is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published by the
10 Free Software Foundation; either version 2, or (at your option) any
13 XEmacs is distributed in the hope that it will be useful, but WITHOUT
14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 You should have received a copy of the GNU General Public License
19 along with XEmacs; see the file COPYING. If not, write to
20 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
21 Boston, MA 02111-1307, USA. */
23 /* Synched up with: Not in FSF. */
33 #include "specifier.h"
36 /* Objects that are substituted when an instantiation fails.
37 If we leave in the Qunbound value, we will probably get crashes. */
38 Lisp_Object Vthe_null_color_instance, Vthe_null_font_instance;
40 /* Authors: Ben Wing, Chuck Thompson */
49 ("Can't dump an emacs containing window system objects", obj);
53 /****************************************************************************
54 * Color-Instance Object *
55 ****************************************************************************/
57 Lisp_Object Qcolor_instancep;
60 mark_color_instance (Lisp_Object obj)
62 Lisp_Color_Instance *c = XCOLOR_INSTANCE (obj);
63 mark_object (c->name);
64 if (!NILP (c->device)) /* Vthe_null_color_instance */
65 MAYBE_DEVMETH (XDEVICE (c->device), mark_color_instance, (c));
71 print_color_instance (Lisp_Object obj, Lisp_Object printcharfun,
75 Lisp_Color_Instance *c = XCOLOR_INSTANCE (obj);
77 error ("printing unreadable object #<color-instance 0x%x>",
79 write_c_string ("#<color-instance ", printcharfun);
80 print_internal (c->name, printcharfun, 0);
81 write_c_string (" on ", printcharfun);
82 print_internal (c->device, printcharfun, 0);
83 if (!NILP (c->device)) /* Vthe_null_color_instance */
84 MAYBE_DEVMETH (XDEVICE (c->device), print_color_instance,
85 (c, printcharfun, escapeflag));
86 sprintf (buf, " 0x%x>", c->header.uid);
87 write_c_string (buf, printcharfun);
91 finalize_color_instance (void *header, int for_disksave)
93 Lisp_Color_Instance *c = (Lisp_Color_Instance *) header;
95 if (!NILP (c->device))
97 if (for_disksave) finalose (c);
98 MAYBE_DEVMETH (XDEVICE (c->device), finalize_color_instance, (c));
103 color_instance_equal (Lisp_Object obj1, Lisp_Object obj2, int depth)
105 Lisp_Color_Instance *c1 = XCOLOR_INSTANCE (obj1);
106 Lisp_Color_Instance *c2 = XCOLOR_INSTANCE (obj2);
109 (EQ (c1->device, c2->device) &&
110 DEVICEP (c1->device) &&
111 HAS_DEVMETH_P (XDEVICE (c1->device), color_instance_equal) &&
112 DEVMETH (XDEVICE (c1->device), color_instance_equal, (c1, c2, depth)));
116 color_instance_hash (Lisp_Object obj, int depth)
118 Lisp_Color_Instance *c = XCOLOR_INSTANCE (obj);
119 struct device *d = DEVICEP (c->device) ? XDEVICE (c->device) : 0;
121 return HASH2 ((unsigned long) d,
123 : DEVMETH_OR_GIVEN (d, color_instance_hash, (c, depth),
127 DEFINE_LRECORD_IMPLEMENTATION ("color-instance", color_instance,
128 mark_color_instance, print_color_instance,
129 finalize_color_instance, color_instance_equal,
130 color_instance_hash, 0,
131 Lisp_Color_Instance);
133 DEFUN ("make-color-instance", Fmake_color_instance, 1, 3, 0, /*
134 Return a new `color-instance' object named NAME (a string).
136 Optional argument DEVICE specifies the device this object applies to
137 and defaults to the selected device.
139 An error is signaled if the color is unknown or cannot be allocated;
140 however, if optional argument NO-ERROR is non-nil, nil is simply
141 returned in this case. (And if NO-ERROR is other than t, a warning may
144 The returned object is a normal, first-class lisp object. The way you
145 `deallocate' the color is the way you deallocate any other lisp object:
146 you drop all pointers to it and allow it to be garbage collected. When
147 these objects are GCed, the underlying window-system data (e.g. X object)
148 is deallocated as well.
150 (name, device, no_error))
152 Lisp_Color_Instance *c;
157 XSETDEVICE (device, decode_device (device));
159 c = alloc_lcrecord_type (Lisp_Color_Instance, &lrecord_color_instance);
164 retval = MAYBE_INT_DEVMETH (XDEVICE (device), initialize_color_instance,
166 decode_error_behavior_flag (no_error)));
170 XSETCOLOR_INSTANCE (val, c);
174 DEFUN ("color-instance-p", Fcolor_instance_p, 1, 1, 0, /*
175 Return non-nil if OBJECT is a color instance.
179 return COLOR_INSTANCEP (object) ? Qt : Qnil;
182 DEFUN ("color-instance-name", Fcolor_instance_name, 1, 1, 0, /*
183 Return the name used to allocate COLOR-INSTANCE.
187 CHECK_COLOR_INSTANCE (color_instance);
188 return XCOLOR_INSTANCE (color_instance)->name;
191 DEFUN ("color-instance-rgb-components", Fcolor_instance_rgb_components, 1, 1, 0, /*
192 Return a three element list containing the red, green, and blue
193 color components of COLOR-INSTANCE, or nil if unknown.
194 Component values range from 0 to 65535.
198 Lisp_Color_Instance *c;
200 CHECK_COLOR_INSTANCE (color_instance);
201 c = XCOLOR_INSTANCE (color_instance);
203 if (NILP (c->device))
206 return MAYBE_LISP_DEVMETH (XDEVICE (c->device),
207 color_instance_rgb_components,
211 DEFUN ("valid-color-name-p", Fvalid_color_name_p, 1, 2, 0, /*
212 Return true if COLOR names a valid color for the current device.
214 Valid color names for X are listed in the file /usr/lib/X11/rgb.txt, or
215 whatever the equivalent is on your system.
217 Valid color names for TTY are those which have an ISO 6429 (ANSI) sequence.
218 In addition to being a color this may be one of a number of attributes
223 struct device *d = decode_device (device);
225 CHECK_STRING (color);
226 return MAYBE_INT_DEVMETH (d, valid_color_name_p, (d, color)) ? Qt : Qnil;
230 /***************************************************************************
231 * Font-Instance Object *
232 ***************************************************************************/
234 Lisp_Object Qfont_instancep;
236 static Lisp_Object font_instance_truename_internal (Lisp_Object xfont,
237 Error_behavior errb);
240 mark_font_instance (Lisp_Object obj)
242 Lisp_Font_Instance *f = XFONT_INSTANCE (obj);
244 mark_object (f->name);
245 if (!NILP (f->device)) /* Vthe_null_font_instance */
246 MAYBE_DEVMETH (XDEVICE (f->device), mark_font_instance, (f));
252 print_font_instance (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
255 Lisp_Font_Instance *f = XFONT_INSTANCE (obj);
257 error ("printing unreadable object #<font-instance 0x%x>", f->header.uid);
258 write_c_string ("#<font-instance ", printcharfun);
259 print_internal (f->name, printcharfun, 1);
260 write_c_string (" on ", printcharfun);
261 print_internal (f->device, printcharfun, 0);
262 if (!NILP (f->device))
263 MAYBE_DEVMETH (XDEVICE (f->device), print_font_instance,
264 (f, printcharfun, escapeflag));
265 sprintf (buf, " 0x%x>", f->header.uid);
266 write_c_string (buf, printcharfun);
270 finalize_font_instance (void *header, int for_disksave)
272 Lisp_Font_Instance *f = (Lisp_Font_Instance *) header;
274 if (!NILP (f->device))
276 if (for_disksave) finalose (f);
277 MAYBE_DEVMETH (XDEVICE (f->device), finalize_font_instance, (f));
281 /* Fonts are equal if they resolve to the same name.
282 Since we call `font-truename' to do this, and since font-truename is lazy,
283 this means the `equal' could cause XListFonts to be run the first time.
286 font_instance_equal (Lisp_Object obj1, Lisp_Object obj2, int depth)
288 /* #### should this be moved into a device method? */
289 return internal_equal (font_instance_truename_internal (obj1, ERROR_ME_NOT),
290 font_instance_truename_internal (obj2, ERROR_ME_NOT),
295 font_instance_hash (Lisp_Object obj, int depth)
297 return internal_hash (font_instance_truename_internal (obj, ERROR_ME_NOT),
301 DEFINE_LRECORD_IMPLEMENTATION ("font-instance", font_instance,
302 mark_font_instance, print_font_instance,
303 finalize_font_instance, font_instance_equal,
304 font_instance_hash, 0, Lisp_Font_Instance);
306 DEFUN ("make-font-instance", Fmake_font_instance, 1, 3, 0, /*
307 Return a new `font-instance' object named NAME.
308 DEVICE specifies the device this object applies to and defaults to the
309 selected device. An error is signalled if the font is unknown or cannot
310 be allocated; however, if NOERROR is non-nil, nil is simply returned in
313 The returned object is a normal, first-class lisp object. The way you
314 `deallocate' the font is the way you deallocate any other lisp object:
315 you drop all pointers to it and allow it to be garbage collected. When
316 these objects are GCed, the underlying X data is deallocated as well.
318 (name, device, no_error))
320 Lisp_Font_Instance *f;
323 Error_behavior errb = decode_error_behavior_flag (no_error);
325 if (ERRB_EQ (errb, ERROR_ME))
327 else if (!STRINGP (name))
330 XSETDEVICE (device, decode_device (device));
332 f = alloc_lcrecord_type (Lisp_Font_Instance, &lrecord_font_instance);
338 /* Stick some default values here ... */
339 f->ascent = f->height = 1;
342 f->proportional_p = 0;
344 retval = MAYBE_INT_DEVMETH (XDEVICE (device), initialize_font_instance,
345 (f, name, device, errb));
350 XSETFONT_INSTANCE (val, f);
354 DEFUN ("font-instance-p", Ffont_instance_p, 1, 1, 0, /*
355 Return non-nil if OBJECT is a font instance.
359 return FONT_INSTANCEP (object) ? Qt : Qnil;
362 DEFUN ("font-instance-name", Ffont_instance_name, 1, 1, 0, /*
363 Return the name used to allocate FONT-INSTANCE.
367 CHECK_FONT_INSTANCE (font_instance);
368 return XFONT_INSTANCE (font_instance)->name;
371 DEFUN ("font-instance-ascent", Ffont_instance_ascent, 1, 1, 0, /*
372 Return the ascent in pixels of FONT-INSTANCE.
373 The returned value is the maximum ascent for all characters in the font,
374 where a character's ascent is the number of pixels above (and including)
379 CHECK_FONT_INSTANCE (font_instance);
380 return make_int (XFONT_INSTANCE (font_instance)->ascent);
383 DEFUN ("font-instance-descent", Ffont_instance_descent, 1, 1, 0, /*
384 Return the descent in pixels of FONT-INSTANCE.
385 The returned value is the maximum descent for all characters in the font,
386 where a character's descent is the number of pixels below the baseline.
387 \(Many characters to do not have any descent. Typical characters with a
388 descent are lowercase p and lowercase g.)
392 CHECK_FONT_INSTANCE (font_instance);
393 return make_int (XFONT_INSTANCE (font_instance)->descent);
396 DEFUN ("font-instance-width", Ffont_instance_width, 1, 1, 0, /*
397 Return the width in pixels of FONT-INSTANCE.
398 The returned value is the average width for all characters in the font.
402 CHECK_FONT_INSTANCE (font_instance);
403 return make_int (XFONT_INSTANCE (font_instance)->width);
406 DEFUN ("font-instance-proportional-p", Ffont_instance_proportional_p, 1, 1, 0, /*
407 Return whether FONT-INSTANCE is proportional.
408 This means that different characters in the font have different widths.
412 CHECK_FONT_INSTANCE (font_instance);
413 return XFONT_INSTANCE (font_instance)->proportional_p ? Qt : Qnil;
417 font_instance_truename_internal (Lisp_Object font_instance,
420 Lisp_Font_Instance *f = XFONT_INSTANCE (font_instance);
422 if (NILP (f->device))
424 maybe_signal_simple_error ("Couldn't determine font truename",
425 font_instance, Qfont, errb);
429 return DEVMETH_OR_GIVEN (XDEVICE (f->device),
430 font_instance_truename, (f, errb), f->name);
433 DEFUN ("font-instance-truename", Ffont_instance_truename, 1, 1, 0, /*
434 Return the canonical name of FONT-INSTANCE.
435 Font names are patterns which may match any number of fonts, of which
436 the first found is used. This returns an unambiguous name for that font
437 \(but not necessarily its only unambiguous name).
441 CHECK_FONT_INSTANCE (font_instance);
442 return font_instance_truename_internal (font_instance, ERROR_ME);
445 DEFUN ("font-instance-properties", Ffont_instance_properties, 1, 1, 0, /*
446 Return the properties (an alist or nil) of FONT-INSTANCE.
450 Lisp_Font_Instance *f;
452 CHECK_FONT_INSTANCE (font_instance);
453 f = XFONT_INSTANCE (font_instance);
455 if (NILP (f->device))
458 return MAYBE_LISP_DEVMETH (XDEVICE (f->device),
459 font_instance_properties, (f));
462 DEFUN ("list-fonts", Flist_fonts, 1, 2, 0, /*
463 Return a list of font names matching the given pattern.
464 DEVICE specifies which device to search for names, and defaults to the
465 currently selected device.
469 CHECK_STRING (pattern);
470 XSETDEVICE (device, decode_device (device));
472 return MAYBE_LISP_DEVMETH (XDEVICE (device), list_fonts, (pattern, device));
476 /****************************************************************************
478 ***************************************************************************/
479 DEFINE_SPECIFIER_TYPE (color);
480 /* Qcolor defined in general.c */
483 color_create (Lisp_Object obj)
485 Lisp_Specifier *color = XCOLOR_SPECIFIER (obj);
487 COLOR_SPECIFIER_FACE (color) = Qnil;
488 COLOR_SPECIFIER_FACE_PROPERTY (color) = Qnil;
492 color_mark (Lisp_Object obj)
494 Lisp_Specifier *color = XCOLOR_SPECIFIER (obj);
496 mark_object (COLOR_SPECIFIER_FACE (color));
497 mark_object (COLOR_SPECIFIER_FACE_PROPERTY (color));
500 /* No equal or hash methods; ignore the face the color is based off
504 color_instantiate (Lisp_Object specifier, Lisp_Object matchspec,
505 Lisp_Object domain, Lisp_Object instantiator,
508 /* When called, we're inside of call_with_suspended_errors(),
509 so we can freely error. */
510 Lisp_Object device = DOMAIN_DEVICE (domain);
511 struct device *d = XDEVICE (device);
513 if (COLOR_INSTANCEP (instantiator))
515 /* If we are on the same device then we're done. Otherwise change
516 the instantiator to the name used to generate the pixel and let the
517 STRINGP case deal with it. */
518 if (NILP (device) /* Vthe_null_color_instance */
519 || EQ (device, XCOLOR_INSTANCE (instantiator)->device))
522 instantiator = Fcolor_instance_name (instantiator);
525 if (STRINGP (instantiator))
527 /* First, look to see if we can retrieve a cached value. */
528 Lisp_Object instance =
529 Fgethash (instantiator, d->color_instance_cache, Qunbound);
530 /* Otherwise, make a new one. */
531 if (UNBOUNDP (instance))
533 /* make sure we cache the failures, too. */
534 instance = Fmake_color_instance (instantiator, device, Qt);
535 Fputhash (instantiator, instance, d->color_instance_cache);
538 return NILP (instance) ? Qunbound : instance;
540 else if (VECTORP (instantiator))
542 switch (XVECTOR_LENGTH (instantiator))
545 if (DEVICE_TTY_P (d))
546 return Vthe_null_color_instance;
548 signal_simple_error ("Color instantiator [] only valid on TTY's",
552 if (NILP (COLOR_SPECIFIER_FACE (XCOLOR_SPECIFIER (specifier))))
553 signal_simple_error ("Color specifier not attached to a face",
555 return (FACE_PROPERTY_INSTANCE_1
556 (Fget_face (XVECTOR_DATA (instantiator)[0]),
557 COLOR_SPECIFIER_FACE_PROPERTY (XCOLOR_SPECIFIER (specifier)),
558 domain, ERROR_ME, 0, depth));
561 return (FACE_PROPERTY_INSTANCE_1
562 (Fget_face (XVECTOR_DATA (instantiator)[0]),
563 XVECTOR_DATA (instantiator)[1], domain, ERROR_ME, 0, depth));
569 else if (NILP (instantiator))
571 if (DEVICE_TTY_P (d))
572 return Vthe_null_color_instance;
574 signal_simple_error ("Color instantiator [] only valid on TTY's",
578 abort (); /* The spec validation routines are screwed up. */
584 color_validate (Lisp_Object instantiator)
586 if (COLOR_INSTANCEP (instantiator) || STRINGP (instantiator))
588 if (VECTORP (instantiator))
590 if (XVECTOR_LENGTH (instantiator) > 2)
591 signal_simple_error ("Inheritance vector must be of size 0 - 2",
593 else if (XVECTOR_LENGTH (instantiator) > 0)
595 Lisp_Object face = XVECTOR_DATA (instantiator)[0];
598 if (XVECTOR_LENGTH (instantiator) == 2)
600 Lisp_Object field = XVECTOR_DATA (instantiator)[1];
601 if (!EQ (field, Qforeground) && !EQ (field, Qbackground))
603 ("Inheritance field must be `foreground' or `background'",
609 signal_simple_error ("Invalid color instantiator", instantiator);
613 color_after_change (Lisp_Object specifier, Lisp_Object locale)
615 Lisp_Object face = COLOR_SPECIFIER_FACE (XCOLOR_SPECIFIER (specifier));
616 Lisp_Object property =
617 COLOR_SPECIFIER_FACE_PROPERTY (XCOLOR_SPECIFIER (specifier));
619 face_property_was_changed (face, property, locale);
623 set_color_attached_to (Lisp_Object obj, Lisp_Object face, Lisp_Object property)
625 Lisp_Specifier *color = XCOLOR_SPECIFIER (obj);
627 COLOR_SPECIFIER_FACE (color) = face;
628 COLOR_SPECIFIER_FACE_PROPERTY (color) = property;
631 DEFUN ("color-specifier-p", Fcolor_specifier_p, 1, 1, 0, /*
632 Return t if OBJECT is a color specifier.
634 See `make-color-specifier' for a description of possible color instantiators.
638 return COLOR_SPECIFIERP (object) ? Qt : Qnil;
642 /****************************************************************************
644 ***************************************************************************/
645 DEFINE_SPECIFIER_TYPE (font);
646 /* Qfont defined in general.c */
649 font_create (Lisp_Object obj)
651 Lisp_Specifier *font = XFONT_SPECIFIER (obj);
653 FONT_SPECIFIER_FACE (font) = Qnil;
654 FONT_SPECIFIER_FACE_PROPERTY (font) = Qnil;
658 font_mark (Lisp_Object obj)
660 Lisp_Specifier *font = XFONT_SPECIFIER (obj);
662 mark_object (FONT_SPECIFIER_FACE (font));
663 mark_object (FONT_SPECIFIER_FACE_PROPERTY (font));
666 /* No equal or hash methods; ignore the face the font is based off
672 font_spec_matches_charset (struct device *d, Lisp_Object charset,
673 const Bufbyte *nonreloc, Lisp_Object reloc,
674 Bytecount offset, Bytecount length)
676 return DEVMETH_OR_GIVEN (d, font_spec_matches_charset,
677 (d, charset, nonreloc, reloc, offset, length),
682 font_validate_matchspec (Lisp_Object matchspec)
684 Fget_charset (matchspec);
691 font_instantiate (Lisp_Object specifier, Lisp_Object matchspec,
692 Lisp_Object domain, Lisp_Object instantiator,
695 /* When called, we're inside of call_with_suspended_errors(),
696 so we can freely error. */
697 Lisp_Object device = DOMAIN_DEVICE (domain);
698 struct device *d = XDEVICE (device);
699 Lisp_Object instance;
702 if (!UNBOUNDP (matchspec))
703 matchspec = Fget_charset (matchspec);
706 if (FONT_INSTANCEP (instantiator))
709 || EQ (device, XFONT_INSTANCE (instantiator)->device))
712 if (font_spec_matches_charset (d, matchspec, 0,
713 Ffont_instance_truename
721 instantiator = Ffont_instance_name (instantiator);
724 if (STRINGP (instantiator))
727 if (!UNBOUNDP (matchspec))
729 /* The instantiator is a font spec that could match many
730 different fonts. We need to find one of those fonts
731 whose registry matches the registry of the charset in
732 MATCHSPEC. This is potentially a very slow operation,
733 as it involves doing an XListFonts() or equivalent to
734 iterate over all possible fonts, and a regexp match
735 on each one. So we cache the results. */
736 Lisp_Object matching_font = Qunbound;
737 Lisp_Object hash_table = Fgethash (matchspec, d->charset_font_cache,
739 if (UNBOUNDP (hash_table))
741 /* need to make a sub hash table. */
742 hash_table = make_lisp_hash_table (20, HASH_TABLE_KEY_WEAK,
744 Fputhash (matchspec, hash_table, d->charset_font_cache);
747 matching_font = Fgethash (instantiator, hash_table, Qunbound);
749 if (UNBOUNDP (matching_font))
751 /* make sure we cache the failures, too. */
753 DEVMETH_OR_GIVEN (d, find_charset_font,
754 (device, instantiator, matchspec),
756 Fputhash (instantiator, matching_font, hash_table);
758 if (NILP (matching_font))
760 instantiator = matching_font;
764 /* First, look to see if we can retrieve a cached value. */
765 instance = Fgethash (instantiator, d->font_instance_cache, Qunbound);
766 /* Otherwise, make a new one. */
767 if (UNBOUNDP (instance))
769 /* make sure we cache the failures, too. */
770 instance = Fmake_font_instance (instantiator, device, Qt);
771 Fputhash (instantiator, instance, d->font_instance_cache);
774 return NILP (instance) ? Qunbound : instance;
776 else if (VECTORP (instantiator))
778 assert (XVECTOR_LENGTH (instantiator) == 1);
779 return (face_property_matching_instance
780 (Fget_face (XVECTOR_DATA (instantiator)[0]), Qfont,
781 matchspec, domain, ERROR_ME, 0, depth));
783 else if (NILP (instantiator))
792 font_validate (Lisp_Object instantiator)
794 if (FONT_INSTANCEP (instantiator) || STRINGP (instantiator))
796 if (VECTORP (instantiator))
798 if (XVECTOR_LENGTH (instantiator) != 1)
801 ("Vector length must be one for font inheritance", instantiator);
803 Fget_face (XVECTOR_DATA (instantiator)[0]);
806 signal_simple_error ("Must be string, vector, or font-instance",
811 font_after_change (Lisp_Object specifier, Lisp_Object locale)
813 Lisp_Object face = FONT_SPECIFIER_FACE (XFONT_SPECIFIER (specifier));
814 Lisp_Object property =
815 FONT_SPECIFIER_FACE_PROPERTY (XFONT_SPECIFIER (specifier));
817 face_property_was_changed (face, property, locale);
821 set_font_attached_to (Lisp_Object obj, Lisp_Object face, Lisp_Object property)
823 Lisp_Specifier *font = XFONT_SPECIFIER (obj);
825 FONT_SPECIFIER_FACE (font) = face;
826 FONT_SPECIFIER_FACE_PROPERTY (font) = property;
829 DEFUN ("font-specifier-p", Ffont_specifier_p, 1, 1, 0, /*
830 Return non-nil if OBJECT is a font specifier.
832 See `make-font-specifier' for a description of possible font instantiators.
836 return FONT_SPECIFIERP (object) ? Qt : Qnil;
840 /*****************************************************************************
842 ****************************************************************************/
843 DEFINE_SPECIFIER_TYPE (face_boolean);
844 Lisp_Object Qface_boolean;
847 face_boolean_create (Lisp_Object obj)
849 Lisp_Specifier *face_boolean = XFACE_BOOLEAN_SPECIFIER (obj);
851 FACE_BOOLEAN_SPECIFIER_FACE (face_boolean) = Qnil;
852 FACE_BOOLEAN_SPECIFIER_FACE_PROPERTY (face_boolean) = Qnil;
856 face_boolean_mark (Lisp_Object obj)
858 Lisp_Specifier *face_boolean = XFACE_BOOLEAN_SPECIFIER (obj);
860 mark_object (FACE_BOOLEAN_SPECIFIER_FACE (face_boolean));
861 mark_object (FACE_BOOLEAN_SPECIFIER_FACE_PROPERTY (face_boolean));
864 /* No equal or hash methods; ignore the face the face-boolean is based off
868 face_boolean_instantiate (Lisp_Object specifier, Lisp_Object matchspec,
869 Lisp_Object domain, Lisp_Object instantiator,
872 /* When called, we're inside of call_with_suspended_errors(),
873 so we can freely error. */
874 if (NILP (instantiator) || EQ (instantiator, Qt))
876 else if (VECTORP (instantiator))
880 int instantiator_len = XVECTOR_LENGTH (instantiator);
882 assert (instantiator_len >= 1 && instantiator_len <= 3);
883 if (instantiator_len > 1)
884 prop = XVECTOR_DATA (instantiator)[1];
887 if (NILP (FACE_BOOLEAN_SPECIFIER_FACE
888 (XFACE_BOOLEAN_SPECIFIER (specifier))))
890 ("Face-boolean specifier not attached to a face", instantiator);
891 prop = FACE_BOOLEAN_SPECIFIER_FACE_PROPERTY
892 (XFACE_BOOLEAN_SPECIFIER (specifier));
895 retval = (FACE_PROPERTY_INSTANCE_1
896 (Fget_face (XVECTOR_DATA (instantiator)[0]),
897 prop, domain, ERROR_ME, 0, depth));
899 if (instantiator_len == 3 && !NILP (XVECTOR_DATA (instantiator)[2]))
900 retval = NILP (retval) ? Qt : Qnil;
911 face_boolean_validate (Lisp_Object instantiator)
913 if (NILP (instantiator) || EQ (instantiator, Qt))
915 else if (VECTORP (instantiator) &&
916 (XVECTOR_LENGTH (instantiator) >= 1 &&
917 XVECTOR_LENGTH (instantiator) <= 3))
919 Lisp_Object face = XVECTOR_DATA (instantiator)[0];
923 if (XVECTOR_LENGTH (instantiator) > 1)
925 Lisp_Object field = XVECTOR_DATA (instantiator)[1];
926 if (!EQ (field, Qunderline)
927 && !EQ (field, Qstrikethru)
928 && !EQ (field, Qhighlight)
930 && !EQ (field, Qblinking)
931 && !EQ (field, Qreverse))
932 signal_simple_error ("Invalid face-boolean inheritance field",
936 else if (VECTORP (instantiator))
937 signal_simple_error ("Wrong length for face-boolean inheritance spec",
940 signal_simple_error ("Face-boolean instantiator must be nil, t, or vector",
945 face_boolean_after_change (Lisp_Object specifier, Lisp_Object locale)
948 FACE_BOOLEAN_SPECIFIER_FACE (XFACE_BOOLEAN_SPECIFIER (specifier));
949 Lisp_Object property =
950 FACE_BOOLEAN_SPECIFIER_FACE_PROPERTY (XFACE_BOOLEAN_SPECIFIER (specifier));
952 face_property_was_changed (face, property, locale);
956 set_face_boolean_attached_to (Lisp_Object obj, Lisp_Object face,
957 Lisp_Object property)
959 Lisp_Specifier *face_boolean = XFACE_BOOLEAN_SPECIFIER (obj);
961 FACE_BOOLEAN_SPECIFIER_FACE (face_boolean) = face;
962 FACE_BOOLEAN_SPECIFIER_FACE_PROPERTY (face_boolean) = property;
965 DEFUN ("face-boolean-specifier-p", Fface_boolean_specifier_p, 1, 1, 0, /*
966 Return non-nil if OBJECT is a face-boolean specifier.
968 See `make-face-boolean-specifier' for a description of possible
969 face-boolean instantiators.
973 return FACE_BOOLEAN_SPECIFIERP (object) ? Qt : Qnil;
977 /************************************************************************/
979 /************************************************************************/
982 syms_of_objects (void)
984 INIT_LRECORD_IMPLEMENTATION (color_instance);
985 INIT_LRECORD_IMPLEMENTATION (font_instance);
987 DEFSUBR (Fcolor_specifier_p);
988 DEFSUBR (Ffont_specifier_p);
989 DEFSUBR (Fface_boolean_specifier_p);
991 defsymbol (&Qcolor_instancep, "color-instance-p");
992 DEFSUBR (Fmake_color_instance);
993 DEFSUBR (Fcolor_instance_p);
994 DEFSUBR (Fcolor_instance_name);
995 DEFSUBR (Fcolor_instance_rgb_components);
996 DEFSUBR (Fvalid_color_name_p);
998 defsymbol (&Qfont_instancep, "font-instance-p");
999 DEFSUBR (Fmake_font_instance);
1000 DEFSUBR (Ffont_instance_p);
1001 DEFSUBR (Ffont_instance_name);
1002 DEFSUBR (Ffont_instance_ascent);
1003 DEFSUBR (Ffont_instance_descent);
1004 DEFSUBR (Ffont_instance_width);
1005 DEFSUBR (Ffont_instance_proportional_p);
1006 DEFSUBR (Ffont_instance_truename);
1007 DEFSUBR (Ffont_instance_properties);
1008 DEFSUBR (Flist_fonts);
1010 /* Qcolor, Qfont defined in general.c */
1011 defsymbol (&Qface_boolean, "face-boolean");
1014 static const struct lrecord_description color_specifier_description[] = {
1015 { XD_LISP_OBJECT, specifier_data_offset + offsetof (struct color_specifier, face) },
1016 { XD_LISP_OBJECT, specifier_data_offset + offsetof (struct color_specifier, face_property) },
1020 static const struct lrecord_description font_specifier_description[] = {
1021 { XD_LISP_OBJECT, specifier_data_offset + offsetof (struct font_specifier, face) },
1022 { XD_LISP_OBJECT, specifier_data_offset + offsetof (struct font_specifier, face_property) },
1026 static const struct lrecord_description face_boolean_specifier_description[] = {
1027 { XD_LISP_OBJECT, specifier_data_offset + offsetof (struct face_boolean_specifier, face) },
1028 { XD_LISP_OBJECT, specifier_data_offset + offsetof (struct face_boolean_specifier, face_property) },
1033 specifier_type_create_objects (void)
1035 INITIALIZE_SPECIFIER_TYPE_WITH_DATA (color, "color", "color-specifier-p");
1036 INITIALIZE_SPECIFIER_TYPE_WITH_DATA (font, "font", "font-specifier-p");
1037 INITIALIZE_SPECIFIER_TYPE_WITH_DATA (face_boolean, "face-boolean",
1038 "face-boolean-specifier-p");
1040 SPECIFIER_HAS_METHOD (color, instantiate);
1041 SPECIFIER_HAS_METHOD (font, instantiate);
1042 SPECIFIER_HAS_METHOD (face_boolean, instantiate);
1044 SPECIFIER_HAS_METHOD (color, validate);
1045 SPECIFIER_HAS_METHOD (font, validate);
1046 SPECIFIER_HAS_METHOD (face_boolean, validate);
1048 SPECIFIER_HAS_METHOD (color, create);
1049 SPECIFIER_HAS_METHOD (font, create);
1050 SPECIFIER_HAS_METHOD (face_boolean, create);
1052 SPECIFIER_HAS_METHOD (color, mark);
1053 SPECIFIER_HAS_METHOD (font, mark);
1054 SPECIFIER_HAS_METHOD (face_boolean, mark);
1056 SPECIFIER_HAS_METHOD (color, after_change);
1057 SPECIFIER_HAS_METHOD (font, after_change);
1058 SPECIFIER_HAS_METHOD (face_boolean, after_change);
1061 SPECIFIER_HAS_METHOD (font, validate_matchspec);
1066 reinit_specifier_type_create_objects (void)
1068 REINITIALIZE_SPECIFIER_TYPE (color);
1069 REINITIALIZE_SPECIFIER_TYPE (font);
1070 REINITIALIZE_SPECIFIER_TYPE (face_boolean);
1074 reinit_vars_of_objects (void)
1076 staticpro_nodump (&Vthe_null_color_instance);
1078 Lisp_Color_Instance *c =
1079 alloc_lcrecord_type (Lisp_Color_Instance, &lrecord_color_instance);
1084 XSETCOLOR_INSTANCE (Vthe_null_color_instance, c);
1087 staticpro_nodump (&Vthe_null_font_instance);
1089 Lisp_Font_Instance *f =
1090 alloc_lcrecord_type (Lisp_Font_Instance, &lrecord_font_instance);
1095 f->ascent = f->height = 0;
1098 f->proportional_p = 0;
1100 XSETFONT_INSTANCE (Vthe_null_font_instance, f);
1105 vars_of_objects (void)
1107 reinit_vars_of_objects ();