| 1 | /* xfaces.c -- "Face" primitives. |
| 2 | |
| 3 | Copyright (C) 1993-1994, 1998-2012 Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of GNU Emacs. |
| 6 | |
| 7 | GNU Emacs is free software: you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation, either version 3 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | GNU Emacs is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
| 19 | |
| 20 | /* New face implementation by Gerd Moellmann <gerd@gnu.org>. */ |
| 21 | |
| 22 | /* Faces. |
| 23 | |
| 24 | When using Emacs with X, the display style of characters can be |
| 25 | changed by defining `faces'. Each face can specify the following |
| 26 | display attributes: |
| 27 | |
| 28 | 1. Font family name. |
| 29 | |
| 30 | 2. Font foundry name. |
| 31 | |
| 32 | 3. Relative proportionate width, aka character set width or set |
| 33 | width (swidth), e.g. `semi-compressed'. |
| 34 | |
| 35 | 4. Font height in 1/10pt. |
| 36 | |
| 37 | 5. Font weight, e.g. `bold'. |
| 38 | |
| 39 | 6. Font slant, e.g. `italic'. |
| 40 | |
| 41 | 7. Foreground color. |
| 42 | |
| 43 | 8. Background color. |
| 44 | |
| 45 | 9. Whether or not characters should be underlined, and in what color. |
| 46 | |
| 47 | 10. Whether or not characters should be displayed in inverse video. |
| 48 | |
| 49 | 11. A background stipple, a bitmap. |
| 50 | |
| 51 | 12. Whether or not characters should be overlined, and in what color. |
| 52 | |
| 53 | 13. Whether or not characters should be strike-through, and in what |
| 54 | color. |
| 55 | |
| 56 | 14. Whether or not a box should be drawn around characters, the box |
| 57 | type, and, for simple boxes, in what color. |
| 58 | |
| 59 | 15. Font-spec, or nil. This is a special attribute. |
| 60 | |
| 61 | A font-spec is a collection of font attributes (specs). |
| 62 | |
| 63 | When this attribute is specified, the face uses a font matching |
| 64 | with the specs as is except for what overwritten by the specs in |
| 65 | the fontset (see below). In addition, the other font-related |
| 66 | attributes (1st thru 5th) are updated from the spec. |
| 67 | |
| 68 | On the other hand, if one of the other font-related attributes are |
| 69 | specified, the corresponding specs in this attribute is set to nil. |
| 70 | |
| 71 | 15. A face name or list of face names from which to inherit attributes. |
| 72 | |
| 73 | 16. A specified average font width, which is invisible from Lisp, |
| 74 | and is used to ensure that a font specified on the command line, |
| 75 | for example, can be matched exactly. |
| 76 | |
| 77 | 17. A fontset name. This is another special attribute. |
| 78 | |
| 79 | A fontset is a mappings from characters to font-specs, and the |
| 80 | specs overwrite the font-spec in the 14th attribute. |
| 81 | |
| 82 | |
| 83 | Faces are frame-local by nature because Emacs allows to define the |
| 84 | same named face (face names are symbols) differently for different |
| 85 | frames. Each frame has an alist of face definitions for all named |
| 86 | faces. The value of a named face in such an alist is a Lisp vector |
| 87 | with the symbol `face' in slot 0, and a slot for each of the face |
| 88 | attributes mentioned above. |
| 89 | |
| 90 | There is also a global face alist `Vface_new_frame_defaults'. Face |
| 91 | definitions from this list are used to initialize faces of newly |
| 92 | created frames. |
| 93 | |
| 94 | A face doesn't have to specify all attributes. Those not specified |
| 95 | have a value of `unspecified'. Faces specifying all attributes but |
| 96 | the 14th are called `fully-specified'. |
| 97 | |
| 98 | |
| 99 | Face merging. |
| 100 | |
| 101 | The display style of a given character in the text is determined by |
| 102 | combining several faces. This process is called `face merging'. |
| 103 | Any aspect of the display style that isn't specified by overlays or |
| 104 | text properties is taken from the `default' face. Since it is made |
| 105 | sure that the default face is always fully-specified, face merging |
| 106 | always results in a fully-specified face. |
| 107 | |
| 108 | |
| 109 | Face realization. |
| 110 | |
| 111 | After all face attributes for a character have been determined by |
| 112 | merging faces of that character, that face is `realized'. The |
| 113 | realization process maps face attributes to what is physically |
| 114 | available on the system where Emacs runs. The result is a |
| 115 | `realized face' in form of a struct face which is stored in the |
| 116 | face cache of the frame on which it was realized. |
| 117 | |
| 118 | Face realization is done in the context of the character to display |
| 119 | because different fonts may be used for different characters. In |
| 120 | other words, for characters that have different font |
| 121 | specifications, different realized faces are needed to display |
| 122 | them. |
| 123 | |
| 124 | Font specification is done by fontsets. See the comment in |
| 125 | fontset.c for the details. In the current implementation, all ASCII |
| 126 | characters share the same font in a fontset. |
| 127 | |
| 128 | Faces are at first realized for ASCII characters, and, at that |
| 129 | time, assigned a specific realized fontset. Hereafter, we call |
| 130 | such a face as `ASCII face'. When a face for a multibyte character |
| 131 | is realized, it inherits (thus shares) a fontset of an ASCII face |
| 132 | that has the same attributes other than font-related ones. |
| 133 | |
| 134 | Thus, all realized faces have a realized fontset. |
| 135 | |
| 136 | |
| 137 | Unibyte text. |
| 138 | |
| 139 | Unibyte text (i.e. raw 8-bit characters) is displayed with the same |
| 140 | font as ASCII characters. That is because it is expected that |
| 141 | unibyte text users specify a font that is suitable both for ASCII |
| 142 | and raw 8-bit characters. |
| 143 | |
| 144 | |
| 145 | Font selection. |
| 146 | |
| 147 | Font selection tries to find the best available matching font for a |
| 148 | given (character, face) combination. |
| 149 | |
| 150 | If the face specifies a fontset name, that fontset determines a |
| 151 | pattern for fonts of the given character. If the face specifies a |
| 152 | font name or the other font-related attributes, a fontset is |
| 153 | realized from the default fontset. In that case, that |
| 154 | specification determines a pattern for ASCII characters and the |
| 155 | default fontset determines a pattern for multibyte characters. |
| 156 | |
| 157 | Available fonts on the system on which Emacs runs are then matched |
| 158 | against the font pattern. The result of font selection is the best |
| 159 | match for the given face attributes in this font list. |
| 160 | |
| 161 | Font selection can be influenced by the user. |
| 162 | |
| 163 | 1. The user can specify the relative importance he gives the face |
| 164 | attributes width, height, weight, and slant by setting |
| 165 | face-font-selection-order (faces.el) to a list of face attribute |
| 166 | names. The default is '(:width :height :weight :slant), and means |
| 167 | that font selection first tries to find a good match for the font |
| 168 | width specified by a face, then---within fonts with that |
| 169 | width---tries to find a best match for the specified font height, |
| 170 | etc. |
| 171 | |
| 172 | 2. Setting face-font-family-alternatives allows the user to |
| 173 | specify alternative font families to try if a family specified by a |
| 174 | face doesn't exist. |
| 175 | |
| 176 | 3. Setting face-font-registry-alternatives allows the user to |
| 177 | specify all alternative font registries to try for a face |
| 178 | specifying a registry. |
| 179 | |
| 180 | 4. Setting face-ignored-fonts allows the user to ignore specific |
| 181 | fonts. |
| 182 | |
| 183 | |
| 184 | Character composition. |
| 185 | |
| 186 | Usually, the realization process is already finished when Emacs |
| 187 | actually reflects the desired glyph matrix on the screen. However, |
| 188 | on displaying a composition (sequence of characters to be composed |
| 189 | on the screen), a suitable font for the components of the |
| 190 | composition is selected and realized while drawing them on the |
| 191 | screen, i.e. the realization process is delayed but in principle |
| 192 | the same. |
| 193 | |
| 194 | |
| 195 | Initialization of basic faces. |
| 196 | |
| 197 | The faces `default', `modeline' are considered `basic faces'. |
| 198 | When redisplay happens the first time for a newly created frame, |
| 199 | basic faces are realized for CHARSET_ASCII. Frame parameters are |
| 200 | used to fill in unspecified attributes of the default face. */ |
| 201 | |
| 202 | #include <config.h> |
| 203 | #include <stdio.h> |
| 204 | #include <sys/types.h> |
| 205 | #include <sys/stat.h> |
| 206 | #include <stdio.h> /* This needs to be before termchar.h */ |
| 207 | #include <setjmp.h> |
| 208 | |
| 209 | #include "lisp.h" |
| 210 | #include "character.h" |
| 211 | #include "charset.h" |
| 212 | #include "keyboard.h" |
| 213 | #include "frame.h" |
| 214 | #include "termhooks.h" |
| 215 | |
| 216 | #ifdef HAVE_X_WINDOWS |
| 217 | #include "xterm.h" |
| 218 | #ifdef USE_MOTIF |
| 219 | #include <Xm/Xm.h> |
| 220 | #include <Xm/XmStrDefs.h> |
| 221 | #endif /* USE_MOTIF */ |
| 222 | #endif /* HAVE_X_WINDOWS */ |
| 223 | |
| 224 | #ifdef MSDOS |
| 225 | #include "dosfns.h" |
| 226 | #endif |
| 227 | |
| 228 | #ifdef WINDOWSNT |
| 229 | #include "w32term.h" |
| 230 | #include "fontset.h" |
| 231 | /* Redefine X specifics to W32 equivalents to avoid cluttering the |
| 232 | code with #ifdef blocks. */ |
| 233 | #undef FRAME_X_DISPLAY_INFO |
| 234 | #define FRAME_X_DISPLAY_INFO FRAME_W32_DISPLAY_INFO |
| 235 | #define x_display_info w32_display_info |
| 236 | #define FRAME_X_FONT_TABLE FRAME_W32_FONT_TABLE |
| 237 | #define check_x check_w32 |
| 238 | #define GCGraphicsExposures 0 |
| 239 | #endif /* WINDOWSNT */ |
| 240 | |
| 241 | #ifdef HAVE_NS |
| 242 | #include "nsterm.h" |
| 243 | #undef FRAME_X_DISPLAY_INFO |
| 244 | #define FRAME_X_DISPLAY_INFO FRAME_NS_DISPLAY_INFO |
| 245 | #define x_display_info ns_display_info |
| 246 | #define FRAME_X_FONT_TABLE FRAME_NS_FONT_TABLE |
| 247 | #define check_x check_ns |
| 248 | #define GCGraphicsExposures 0 |
| 249 | #endif /* HAVE_NS */ |
| 250 | |
| 251 | #include "buffer.h" |
| 252 | #include "dispextern.h" |
| 253 | #include "blockinput.h" |
| 254 | #include "window.h" |
| 255 | #include "intervals.h" |
| 256 | #include "termchar.h" |
| 257 | |
| 258 | #include "font.h" |
| 259 | #ifdef HAVE_WINDOW_SYSTEM |
| 260 | #include "fontset.h" |
| 261 | #endif /* HAVE_WINDOW_SYSTEM */ |
| 262 | |
| 263 | #ifdef HAVE_X_WINDOWS |
| 264 | |
| 265 | /* Compensate for a bug in Xos.h on some systems, on which it requires |
| 266 | time.h. On some such systems, Xos.h tries to redefine struct |
| 267 | timeval and struct timezone if USG is #defined while it is |
| 268 | #included. */ |
| 269 | |
| 270 | #ifdef XOS_NEEDS_TIME_H |
| 271 | #include <time.h> |
| 272 | #undef USG |
| 273 | #include <X11/Xos.h> |
| 274 | #define USG |
| 275 | #define __TIMEVAL__ |
| 276 | #if defined USG || defined __TIMEVAL__ /* Don't warn about unused macros. */ |
| 277 | #endif |
| 278 | #else /* not XOS_NEEDS_TIME_H */ |
| 279 | #include <X11/Xos.h> |
| 280 | #endif /* not XOS_NEEDS_TIME_H */ |
| 281 | |
| 282 | #endif /* HAVE_X_WINDOWS */ |
| 283 | |
| 284 | #include <ctype.h> |
| 285 | |
| 286 | /* Number of pt per inch (from the TeXbook). */ |
| 287 | |
| 288 | #define PT_PER_INCH 72.27 |
| 289 | |
| 290 | /* Non-zero if face attribute ATTR is unspecified. */ |
| 291 | |
| 292 | #define UNSPECIFIEDP(ATTR) EQ ((ATTR), Qunspecified) |
| 293 | |
| 294 | /* Non-zero if face attribute ATTR is `ignore-defface'. */ |
| 295 | |
| 296 | #define IGNORE_DEFFACE_P(ATTR) EQ ((ATTR), QCignore_defface) |
| 297 | |
| 298 | /* Value is the number of elements of VECTOR. */ |
| 299 | |
| 300 | #define DIM(VECTOR) (sizeof (VECTOR) / sizeof *(VECTOR)) |
| 301 | |
| 302 | /* Size of hash table of realized faces in face caches (should be a |
| 303 | prime number). */ |
| 304 | |
| 305 | #define FACE_CACHE_BUCKETS_SIZE 1001 |
| 306 | |
| 307 | /* Keyword symbols used for face attribute names. */ |
| 308 | |
| 309 | Lisp_Object QCfamily, QCheight, QCweight, QCslant; |
| 310 | static Lisp_Object QCunderline; |
| 311 | static Lisp_Object QCinverse_video, QCstipple; |
| 312 | Lisp_Object QCforeground, QCbackground; |
| 313 | Lisp_Object QCwidth; |
| 314 | static Lisp_Object QCfont, QCbold, QCitalic; |
| 315 | static Lisp_Object QCreverse_video; |
| 316 | static Lisp_Object QCoverline, QCstrike_through, QCbox, QCinherit; |
| 317 | static Lisp_Object QCfontset; |
| 318 | |
| 319 | /* Symbols used for attribute values. */ |
| 320 | |
| 321 | Lisp_Object Qnormal; |
| 322 | Lisp_Object Qbold; |
| 323 | static Lisp_Object Qultra_light, Qextra_light, Qlight; |
| 324 | static Lisp_Object Qsemi_light, Qsemi_bold, Qextra_bold, Qultra_bold; |
| 325 | static Lisp_Object Qoblique, Qreverse_oblique, Qreverse_italic; |
| 326 | Lisp_Object Qitalic; |
| 327 | static Lisp_Object Qultra_condensed, Qextra_condensed; |
| 328 | Lisp_Object Qcondensed; |
| 329 | static Lisp_Object Qsemi_condensed, Qsemi_expanded, Qextra_expanded; |
| 330 | Lisp_Object Qexpanded; |
| 331 | static Lisp_Object Qultra_expanded; |
| 332 | static Lisp_Object Qreleased_button, Qpressed_button; |
| 333 | static Lisp_Object QCstyle, QCcolor, QCline_width; |
| 334 | Lisp_Object Qunspecified; /* used in dosfns.c */ |
| 335 | static Lisp_Object QCignore_defface; |
| 336 | |
| 337 | char unspecified_fg[] = "unspecified-fg", unspecified_bg[] = "unspecified-bg"; |
| 338 | |
| 339 | /* The name of the function to call when the background of the frame |
| 340 | has changed, frame_set_background_mode. */ |
| 341 | |
| 342 | static Lisp_Object Qframe_set_background_mode; |
| 343 | |
| 344 | /* Names of basic faces. */ |
| 345 | |
| 346 | Lisp_Object Qdefault, Qtool_bar, Qfringe; |
| 347 | static Lisp_Object Qregion; |
| 348 | Lisp_Object Qheader_line, Qscroll_bar, Qcursor; |
| 349 | static Lisp_Object Qborder, Qmouse, Qmenu; |
| 350 | Lisp_Object Qmode_line_inactive; |
| 351 | static Lisp_Object Qvertical_border; |
| 352 | |
| 353 | /* The symbol `face-alias'. A symbols having that property is an |
| 354 | alias for another face. Value of the property is the name of |
| 355 | the aliased face. */ |
| 356 | |
| 357 | static Lisp_Object Qface_alias; |
| 358 | |
| 359 | /* Alist of alternative font families. Each element is of the form |
| 360 | (FAMILY FAMILY1 FAMILY2 ...). If fonts of FAMILY can't be loaded, |
| 361 | try FAMILY1, then FAMILY2, ... */ |
| 362 | |
| 363 | Lisp_Object Vface_alternative_font_family_alist; |
| 364 | |
| 365 | /* Alist of alternative font registries. Each element is of the form |
| 366 | (REGISTRY REGISTRY1 REGISTRY2...). If fonts of REGISTRY can't be |
| 367 | loaded, try REGISTRY1, then REGISTRY2, ... */ |
| 368 | |
| 369 | Lisp_Object Vface_alternative_font_registry_alist; |
| 370 | |
| 371 | /* Allowed scalable fonts. A value of nil means don't allow any |
| 372 | scalable fonts. A value of t means allow the use of any scalable |
| 373 | font. Otherwise, value must be a list of regular expressions. A |
| 374 | font may be scaled if its name matches a regular expression in the |
| 375 | list. */ |
| 376 | |
| 377 | static Lisp_Object Qscalable_fonts_allowed; |
| 378 | |
| 379 | #define DEFAULT_FONT_LIST_LIMIT 100 |
| 380 | |
| 381 | /* The symbols `foreground-color' and `background-color' which can be |
| 382 | used as part of a `face' property. This is for compatibility with |
| 383 | Emacs 20.2. */ |
| 384 | |
| 385 | Lisp_Object Qforeground_color, Qbackground_color; |
| 386 | |
| 387 | /* The symbols `face' and `mouse-face' used as text properties. */ |
| 388 | |
| 389 | Lisp_Object Qface; |
| 390 | |
| 391 | /* Property for basic faces which other faces cannot inherit. */ |
| 392 | |
| 393 | static Lisp_Object Qface_no_inherit; |
| 394 | |
| 395 | /* Error symbol for wrong_type_argument in load_pixmap. */ |
| 396 | |
| 397 | static Lisp_Object Qbitmap_spec_p; |
| 398 | |
| 399 | /* The next ID to assign to Lisp faces. */ |
| 400 | |
| 401 | static int next_lface_id; |
| 402 | |
| 403 | /* A vector mapping Lisp face Id's to face names. */ |
| 404 | |
| 405 | static Lisp_Object *lface_id_to_name; |
| 406 | static ptrdiff_t lface_id_to_name_size; |
| 407 | |
| 408 | /* TTY color-related functions (defined in tty-colors.el). */ |
| 409 | |
| 410 | static Lisp_Object Qtty_color_desc, Qtty_color_by_index, Qtty_color_standard_values; |
| 411 | |
| 412 | /* The name of the function used to compute colors on TTYs. */ |
| 413 | |
| 414 | static Lisp_Object Qtty_color_alist; |
| 415 | |
| 416 | /* Counter for calls to clear_face_cache. If this counter reaches |
| 417 | CLEAR_FONT_TABLE_COUNT, and a frame has more than |
| 418 | CLEAR_FONT_TABLE_NFONTS load, unused fonts are freed. */ |
| 419 | |
| 420 | static int clear_font_table_count; |
| 421 | #define CLEAR_FONT_TABLE_COUNT 100 |
| 422 | #define CLEAR_FONT_TABLE_NFONTS 10 |
| 423 | |
| 424 | /* Non-zero means face attributes have been changed since the last |
| 425 | redisplay. Used in redisplay_internal. */ |
| 426 | |
| 427 | int face_change_count; |
| 428 | |
| 429 | /* Non-zero means don't display bold text if a face's foreground |
| 430 | and background colors are the inverse of the default colors of the |
| 431 | display. This is a kluge to suppress `bold black' foreground text |
| 432 | which is hard to read on an LCD monitor. */ |
| 433 | |
| 434 | static int tty_suppress_bold_inverse_default_colors_p; |
| 435 | |
| 436 | /* A list of the form `((x . y))' used to avoid consing in |
| 437 | Finternal_set_lisp_face_attribute. */ |
| 438 | |
| 439 | static Lisp_Object Vparam_value_alist; |
| 440 | |
| 441 | /* The total number of colors currently allocated. */ |
| 442 | |
| 443 | #if GLYPH_DEBUG |
| 444 | static int ncolors_allocated; |
| 445 | static int npixmaps_allocated; |
| 446 | static int ngcs; |
| 447 | #endif |
| 448 | |
| 449 | /* Non-zero means the definition of the `menu' face for new frames has |
| 450 | been changed. */ |
| 451 | |
| 452 | static int menu_face_changed_default; |
| 453 | |
| 454 | \f |
| 455 | /* Function prototypes. */ |
| 456 | |
| 457 | struct table_entry; |
| 458 | struct named_merge_point; |
| 459 | |
| 460 | static void map_tty_color (struct frame *, struct face *, |
| 461 | enum lface_attribute_index, int *); |
| 462 | static Lisp_Object resolve_face_name (Lisp_Object, int); |
| 463 | static void set_font_frame_param (Lisp_Object, Lisp_Object); |
| 464 | static int get_lface_attributes (struct frame *, Lisp_Object, Lisp_Object *, |
| 465 | int, struct named_merge_point *); |
| 466 | static ptrdiff_t load_pixmap (struct frame *, Lisp_Object, |
| 467 | unsigned *, unsigned *); |
| 468 | static struct frame *frame_or_selected_frame (Lisp_Object, int); |
| 469 | static void load_face_colors (struct frame *, struct face *, Lisp_Object *); |
| 470 | static void free_face_colors (struct frame *, struct face *); |
| 471 | static int face_color_gray_p (struct frame *, const char *); |
| 472 | static struct face *realize_face (struct face_cache *, Lisp_Object *, |
| 473 | int); |
| 474 | static struct face *realize_non_ascii_face (struct frame *, Lisp_Object, |
| 475 | struct face *); |
| 476 | static struct face *realize_x_face (struct face_cache *, Lisp_Object *); |
| 477 | static struct face *realize_tty_face (struct face_cache *, Lisp_Object *); |
| 478 | static int realize_basic_faces (struct frame *); |
| 479 | static int realize_default_face (struct frame *); |
| 480 | static void realize_named_face (struct frame *, Lisp_Object, int); |
| 481 | static int lface_fully_specified_p (Lisp_Object *); |
| 482 | static int lface_equal_p (Lisp_Object *, Lisp_Object *); |
| 483 | static unsigned hash_string_case_insensitive (Lisp_Object); |
| 484 | static unsigned lface_hash (Lisp_Object *); |
| 485 | static int lface_same_font_attributes_p (Lisp_Object *, Lisp_Object *); |
| 486 | static struct face_cache *make_face_cache (struct frame *); |
| 487 | static void clear_face_gcs (struct face_cache *); |
| 488 | static void free_face_cache (struct face_cache *); |
| 489 | static int face_fontset (Lisp_Object *); |
| 490 | static void merge_face_vectors (struct frame *, Lisp_Object *, Lisp_Object*, |
| 491 | struct named_merge_point *); |
| 492 | static int merge_face_ref (struct frame *, Lisp_Object, Lisp_Object *, |
| 493 | int, struct named_merge_point *); |
| 494 | static int set_lface_from_font (struct frame *, Lisp_Object, Lisp_Object, |
| 495 | int); |
| 496 | static Lisp_Object lface_from_face_name (struct frame *, Lisp_Object, int); |
| 497 | static struct face *make_realized_face (Lisp_Object *); |
| 498 | static void cache_face (struct face_cache *, struct face *, unsigned); |
| 499 | static void uncache_face (struct face_cache *, struct face *); |
| 500 | |
| 501 | #ifdef HAVE_WINDOW_SYSTEM |
| 502 | |
| 503 | static GC x_create_gc (struct frame *, unsigned long, XGCValues *); |
| 504 | static void x_free_gc (struct frame *, GC); |
| 505 | |
| 506 | #ifdef USE_X_TOOLKIT |
| 507 | static void x_update_menu_appearance (struct frame *); |
| 508 | |
| 509 | extern void free_frame_menubar (struct frame *); |
| 510 | #endif /* USE_X_TOOLKIT */ |
| 511 | |
| 512 | #endif /* HAVE_WINDOW_SYSTEM */ |
| 513 | |
| 514 | \f |
| 515 | /*********************************************************************** |
| 516 | Utilities |
| 517 | ***********************************************************************/ |
| 518 | |
| 519 | #ifdef HAVE_X_WINDOWS |
| 520 | |
| 521 | #ifdef DEBUG_X_COLORS |
| 522 | |
| 523 | /* The following is a poor mans infrastructure for debugging X color |
| 524 | allocation problems on displays with PseudoColor-8. Some X servers |
| 525 | like 3.3.5 XF86_SVGA with Matrox cards apparently don't implement |
| 526 | color reference counts completely so that they don't signal an |
| 527 | error when a color is freed whose reference count is already 0. |
| 528 | Other X servers do. To help me debug this, the following code |
| 529 | implements a simple reference counting schema of its own, for a |
| 530 | single display/screen. --gerd. */ |
| 531 | |
| 532 | /* Reference counts for pixel colors. */ |
| 533 | |
| 534 | int color_count[256]; |
| 535 | |
| 536 | /* Register color PIXEL as allocated. */ |
| 537 | |
| 538 | void |
| 539 | register_color (unsigned long pixel) |
| 540 | { |
| 541 | xassert (pixel < 256); |
| 542 | ++color_count[pixel]; |
| 543 | } |
| 544 | |
| 545 | |
| 546 | /* Register color PIXEL as deallocated. */ |
| 547 | |
| 548 | void |
| 549 | unregister_color (unsigned long pixel) |
| 550 | { |
| 551 | xassert (pixel < 256); |
| 552 | if (color_count[pixel] > 0) |
| 553 | --color_count[pixel]; |
| 554 | else |
| 555 | abort (); |
| 556 | } |
| 557 | |
| 558 | |
| 559 | /* Register N colors from PIXELS as deallocated. */ |
| 560 | |
| 561 | void |
| 562 | unregister_colors (unsigned long *pixels, int n) |
| 563 | { |
| 564 | int i; |
| 565 | for (i = 0; i < n; ++i) |
| 566 | unregister_color (pixels[i]); |
| 567 | } |
| 568 | |
| 569 | |
| 570 | DEFUN ("dump-colors", Fdump_colors, Sdump_colors, 0, 0, 0, |
| 571 | doc: /* Dump currently allocated colors to stderr. */) |
| 572 | (void) |
| 573 | { |
| 574 | int i, n; |
| 575 | |
| 576 | fputc ('\n', stderr); |
| 577 | |
| 578 | for (i = n = 0; i < sizeof color_count / sizeof color_count[0]; ++i) |
| 579 | if (color_count[i]) |
| 580 | { |
| 581 | fprintf (stderr, "%3d: %5d", i, color_count[i]); |
| 582 | ++n; |
| 583 | if (n % 5 == 0) |
| 584 | fputc ('\n', stderr); |
| 585 | else |
| 586 | fputc ('\t', stderr); |
| 587 | } |
| 588 | |
| 589 | if (n % 5 != 0) |
| 590 | fputc ('\n', stderr); |
| 591 | return Qnil; |
| 592 | } |
| 593 | |
| 594 | #endif /* DEBUG_X_COLORS */ |
| 595 | |
| 596 | |
| 597 | /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel |
| 598 | color values. Interrupt input must be blocked when this function |
| 599 | is called. */ |
| 600 | |
| 601 | void |
| 602 | x_free_colors (struct frame *f, long unsigned int *pixels, int npixels) |
| 603 | { |
| 604 | int class = FRAME_X_DISPLAY_INFO (f)->visual->class; |
| 605 | |
| 606 | /* If display has an immutable color map, freeing colors is not |
| 607 | necessary and some servers don't allow it. So don't do it. */ |
| 608 | if (class != StaticColor && class != StaticGray && class != TrueColor) |
| 609 | { |
| 610 | #ifdef DEBUG_X_COLORS |
| 611 | unregister_colors (pixels, npixels); |
| 612 | #endif |
| 613 | XFreeColors (FRAME_X_DISPLAY (f), FRAME_X_COLORMAP (f), |
| 614 | pixels, npixels, 0); |
| 615 | } |
| 616 | } |
| 617 | |
| 618 | |
| 619 | #ifdef USE_X_TOOLKIT |
| 620 | |
| 621 | /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel |
| 622 | color values. Interrupt input must be blocked when this function |
| 623 | is called. */ |
| 624 | |
| 625 | void |
| 626 | x_free_dpy_colors (Display *dpy, Screen *screen, Colormap cmap, |
| 627 | long unsigned int *pixels, int npixels) |
| 628 | { |
| 629 | struct x_display_info *dpyinfo = x_display_info_for_display (dpy); |
| 630 | int class = dpyinfo->visual->class; |
| 631 | |
| 632 | /* If display has an immutable color map, freeing colors is not |
| 633 | necessary and some servers don't allow it. So don't do it. */ |
| 634 | if (class != StaticColor && class != StaticGray && class != TrueColor) |
| 635 | { |
| 636 | #ifdef DEBUG_X_COLORS |
| 637 | unregister_colors (pixels, npixels); |
| 638 | #endif |
| 639 | XFreeColors (dpy, cmap, pixels, npixels, 0); |
| 640 | } |
| 641 | } |
| 642 | #endif /* USE_X_TOOLKIT */ |
| 643 | |
| 644 | /* Create and return a GC for use on frame F. GC values and mask |
| 645 | are given by XGCV and MASK. */ |
| 646 | |
| 647 | static inline GC |
| 648 | x_create_gc (struct frame *f, long unsigned int mask, XGCValues *xgcv) |
| 649 | { |
| 650 | GC gc; |
| 651 | BLOCK_INPUT; |
| 652 | gc = XCreateGC (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), mask, xgcv); |
| 653 | UNBLOCK_INPUT; |
| 654 | IF_DEBUG (++ngcs); |
| 655 | return gc; |
| 656 | } |
| 657 | |
| 658 | |
| 659 | /* Free GC which was used on frame F. */ |
| 660 | |
| 661 | static inline void |
| 662 | x_free_gc (struct frame *f, GC gc) |
| 663 | { |
| 664 | eassert (interrupt_input_blocked); |
| 665 | IF_DEBUG (xassert (--ngcs >= 0)); |
| 666 | XFreeGC (FRAME_X_DISPLAY (f), gc); |
| 667 | } |
| 668 | |
| 669 | #endif /* HAVE_X_WINDOWS */ |
| 670 | |
| 671 | #ifdef WINDOWSNT |
| 672 | /* W32 emulation of GCs */ |
| 673 | |
| 674 | static inline GC |
| 675 | x_create_gc (struct frame *f, unsigned long mask, XGCValues *xgcv) |
| 676 | { |
| 677 | GC gc; |
| 678 | BLOCK_INPUT; |
| 679 | gc = XCreateGC (NULL, FRAME_W32_WINDOW (f), mask, xgcv); |
| 680 | UNBLOCK_INPUT; |
| 681 | IF_DEBUG (++ngcs); |
| 682 | return gc; |
| 683 | } |
| 684 | |
| 685 | |
| 686 | /* Free GC which was used on frame F. */ |
| 687 | |
| 688 | static inline void |
| 689 | x_free_gc (struct frame *f, GC gc) |
| 690 | { |
| 691 | IF_DEBUG (xassert (--ngcs >= 0)); |
| 692 | xfree (gc); |
| 693 | } |
| 694 | |
| 695 | #endif /* WINDOWSNT */ |
| 696 | |
| 697 | #ifdef HAVE_NS |
| 698 | /* NS emulation of GCs */ |
| 699 | |
| 700 | static inline GC |
| 701 | x_create_gc (struct frame *f, |
| 702 | unsigned long mask, |
| 703 | XGCValues *xgcv) |
| 704 | { |
| 705 | GC gc = xmalloc (sizeof (*gc)); |
| 706 | if (gc) |
| 707 | memcpy (gc, xgcv, sizeof (XGCValues)); |
| 708 | return gc; |
| 709 | } |
| 710 | |
| 711 | static inline void |
| 712 | x_free_gc (struct frame *f, GC gc) |
| 713 | { |
| 714 | xfree (gc); |
| 715 | } |
| 716 | #endif /* HAVE_NS */ |
| 717 | |
| 718 | /* Like strcasecmp/stricmp. Used to compare parts of font names which |
| 719 | are in ISO8859-1. */ |
| 720 | |
| 721 | int |
| 722 | xstrcasecmp (const char *s1, const char *s2) |
| 723 | { |
| 724 | while (*s1 && *s2) |
| 725 | { |
| 726 | unsigned char b1 = *s1; |
| 727 | unsigned char b2 = *s2; |
| 728 | unsigned char c1 = tolower (b1); |
| 729 | unsigned char c2 = tolower (b2); |
| 730 | if (c1 != c2) |
| 731 | return c1 < c2 ? -1 : 1; |
| 732 | ++s1, ++s2; |
| 733 | } |
| 734 | |
| 735 | if (*s1 == 0) |
| 736 | return *s2 == 0 ? 0 : -1; |
| 737 | return 1; |
| 738 | } |
| 739 | |
| 740 | |
| 741 | /* If FRAME is nil, return a pointer to the selected frame. |
| 742 | Otherwise, check that FRAME is a live frame, and return a pointer |
| 743 | to it. NPARAM is the parameter number of FRAME, for |
| 744 | CHECK_LIVE_FRAME. This is here because it's a frequent pattern in |
| 745 | Lisp function definitions. */ |
| 746 | |
| 747 | static inline struct frame * |
| 748 | frame_or_selected_frame (Lisp_Object frame, int nparam) |
| 749 | { |
| 750 | if (NILP (frame)) |
| 751 | frame = selected_frame; |
| 752 | |
| 753 | CHECK_LIVE_FRAME (frame); |
| 754 | return XFRAME (frame); |
| 755 | } |
| 756 | |
| 757 | \f |
| 758 | /*********************************************************************** |
| 759 | Frames and faces |
| 760 | ***********************************************************************/ |
| 761 | |
| 762 | /* Initialize face cache and basic faces for frame F. */ |
| 763 | |
| 764 | void |
| 765 | init_frame_faces (struct frame *f) |
| 766 | { |
| 767 | /* Make a face cache, if F doesn't have one. */ |
| 768 | if (FRAME_FACE_CACHE (f) == NULL) |
| 769 | FRAME_FACE_CACHE (f) = make_face_cache (f); |
| 770 | |
| 771 | #ifdef HAVE_WINDOW_SYSTEM |
| 772 | /* Make the image cache. */ |
| 773 | if (FRAME_WINDOW_P (f)) |
| 774 | { |
| 775 | /* We initialize the image cache when creating the first frame |
| 776 | on a terminal, and not during terminal creation. This way, |
| 777 | `x-open-connection' on a tty won't create an image cache. */ |
| 778 | if (FRAME_IMAGE_CACHE (f) == NULL) |
| 779 | FRAME_IMAGE_CACHE (f) = make_image_cache (); |
| 780 | ++FRAME_IMAGE_CACHE (f)->refcount; |
| 781 | } |
| 782 | #endif /* HAVE_WINDOW_SYSTEM */ |
| 783 | |
| 784 | /* Realize basic faces. Must have enough information in frame |
| 785 | parameters to realize basic faces at this point. */ |
| 786 | #ifdef HAVE_X_WINDOWS |
| 787 | if (!FRAME_X_P (f) || FRAME_X_WINDOW (f)) |
| 788 | #endif |
| 789 | #ifdef WINDOWSNT |
| 790 | if (!FRAME_WINDOW_P (f) || FRAME_W32_WINDOW (f)) |
| 791 | #endif |
| 792 | #ifdef HAVE_NS |
| 793 | if (!FRAME_NS_P (f) || FRAME_NS_WINDOW (f)) |
| 794 | #endif |
| 795 | if (!realize_basic_faces (f)) |
| 796 | abort (); |
| 797 | } |
| 798 | |
| 799 | |
| 800 | /* Free face cache of frame F. Called from delete_frame. */ |
| 801 | |
| 802 | void |
| 803 | free_frame_faces (struct frame *f) |
| 804 | { |
| 805 | struct face_cache *face_cache = FRAME_FACE_CACHE (f); |
| 806 | |
| 807 | if (face_cache) |
| 808 | { |
| 809 | free_face_cache (face_cache); |
| 810 | FRAME_FACE_CACHE (f) = NULL; |
| 811 | } |
| 812 | |
| 813 | #ifdef HAVE_WINDOW_SYSTEM |
| 814 | if (FRAME_WINDOW_P (f)) |
| 815 | { |
| 816 | struct image_cache *image_cache = FRAME_IMAGE_CACHE (f); |
| 817 | if (image_cache) |
| 818 | { |
| 819 | --image_cache->refcount; |
| 820 | if (image_cache->refcount == 0) |
| 821 | free_image_cache (f); |
| 822 | } |
| 823 | } |
| 824 | #endif /* HAVE_WINDOW_SYSTEM */ |
| 825 | } |
| 826 | |
| 827 | |
| 828 | /* Clear face caches, and recompute basic faces for frame F. Call |
| 829 | this after changing frame parameters on which those faces depend, |
| 830 | or when realized faces have been freed due to changing attributes |
| 831 | of named faces. */ |
| 832 | |
| 833 | void |
| 834 | recompute_basic_faces (struct frame *f) |
| 835 | { |
| 836 | if (FRAME_FACE_CACHE (f)) |
| 837 | { |
| 838 | clear_face_cache (0); |
| 839 | if (!realize_basic_faces (f)) |
| 840 | abort (); |
| 841 | } |
| 842 | } |
| 843 | |
| 844 | |
| 845 | /* Clear the face caches of all frames. CLEAR_FONTS_P non-zero means |
| 846 | try to free unused fonts, too. */ |
| 847 | |
| 848 | void |
| 849 | clear_face_cache (int clear_fonts_p) |
| 850 | { |
| 851 | #ifdef HAVE_WINDOW_SYSTEM |
| 852 | Lisp_Object tail, frame; |
| 853 | |
| 854 | if (clear_fonts_p |
| 855 | || ++clear_font_table_count == CLEAR_FONT_TABLE_COUNT) |
| 856 | { |
| 857 | #if 0 |
| 858 | /* Not yet implemented. */ |
| 859 | clear_font_cache (frame); |
| 860 | #endif |
| 861 | |
| 862 | /* From time to time see if we can unload some fonts. This also |
| 863 | frees all realized faces on all frames. Fonts needed by |
| 864 | faces will be loaded again when faces are realized again. */ |
| 865 | clear_font_table_count = 0; |
| 866 | |
| 867 | FOR_EACH_FRAME (tail, frame) |
| 868 | { |
| 869 | struct frame *f = XFRAME (frame); |
| 870 | if (FRAME_WINDOW_P (f) |
| 871 | && FRAME_X_DISPLAY_INFO (f)->n_fonts > CLEAR_FONT_TABLE_NFONTS) |
| 872 | free_all_realized_faces (frame); |
| 873 | } |
| 874 | } |
| 875 | else |
| 876 | { |
| 877 | /* Clear GCs of realized faces. */ |
| 878 | FOR_EACH_FRAME (tail, frame) |
| 879 | { |
| 880 | struct frame *f = XFRAME (frame); |
| 881 | if (FRAME_WINDOW_P (f)) |
| 882 | clear_face_gcs (FRAME_FACE_CACHE (f)); |
| 883 | } |
| 884 | clear_image_caches (Qnil); |
| 885 | } |
| 886 | #endif /* HAVE_WINDOW_SYSTEM */ |
| 887 | } |
| 888 | |
| 889 | |
| 890 | DEFUN ("clear-face-cache", Fclear_face_cache, Sclear_face_cache, 0, 1, 0, |
| 891 | doc: /* Clear face caches on all frames. |
| 892 | Optional THOROUGHLY non-nil means try to free unused fonts, too. */) |
| 893 | (Lisp_Object thoroughly) |
| 894 | { |
| 895 | clear_face_cache (!NILP (thoroughly)); |
| 896 | ++face_change_count; |
| 897 | ++windows_or_buffers_changed; |
| 898 | return Qnil; |
| 899 | } |
| 900 | |
| 901 | \f |
| 902 | /*********************************************************************** |
| 903 | X Pixmaps |
| 904 | ***********************************************************************/ |
| 905 | |
| 906 | #ifdef HAVE_WINDOW_SYSTEM |
| 907 | |
| 908 | DEFUN ("bitmap-spec-p", Fbitmap_spec_p, Sbitmap_spec_p, 1, 1, 0, |
| 909 | doc: /* Value is non-nil if OBJECT is a valid bitmap specification. |
| 910 | A bitmap specification is either a string, a file name, or a list |
| 911 | \(WIDTH HEIGHT DATA) where WIDTH is the pixel width of the bitmap, |
| 912 | HEIGHT is its height, and DATA is a string containing the bits of |
| 913 | the pixmap. Bits are stored row by row, each row occupies |
| 914 | \(WIDTH + 7)/8 bytes. */) |
| 915 | (Lisp_Object object) |
| 916 | { |
| 917 | int pixmap_p = 0; |
| 918 | |
| 919 | if (STRINGP (object)) |
| 920 | /* If OBJECT is a string, it's a file name. */ |
| 921 | pixmap_p = 1; |
| 922 | else if (CONSP (object)) |
| 923 | { |
| 924 | /* Otherwise OBJECT must be (WIDTH HEIGHT DATA), WIDTH and |
| 925 | HEIGHT must be integers > 0, and DATA must be string large |
| 926 | enough to hold a bitmap of the specified size. */ |
| 927 | Lisp_Object width, height, data; |
| 928 | |
| 929 | height = width = data = Qnil; |
| 930 | |
| 931 | if (CONSP (object)) |
| 932 | { |
| 933 | width = XCAR (object); |
| 934 | object = XCDR (object); |
| 935 | if (CONSP (object)) |
| 936 | { |
| 937 | height = XCAR (object); |
| 938 | object = XCDR (object); |
| 939 | if (CONSP (object)) |
| 940 | data = XCAR (object); |
| 941 | } |
| 942 | } |
| 943 | |
| 944 | if (STRINGP (data) |
| 945 | && INTEGERP (width) && 0 < XINT (width) |
| 946 | && INTEGERP (height) && 0 < XINT (height)) |
| 947 | { |
| 948 | EMACS_INT bytes_per_row = ((XINT (width) + BITS_PER_CHAR - 1) |
| 949 | / BITS_PER_CHAR); |
| 950 | if (XINT (height) <= SBYTES (data) / bytes_per_row) |
| 951 | pixmap_p = 1; |
| 952 | } |
| 953 | } |
| 954 | |
| 955 | return pixmap_p ? Qt : Qnil; |
| 956 | } |
| 957 | |
| 958 | |
| 959 | /* Load a bitmap according to NAME (which is either a file name or a |
| 960 | pixmap spec) for use on frame F. Value is the bitmap_id (see |
| 961 | xfns.c). If NAME is nil, return with a bitmap id of zero. If |
| 962 | bitmap cannot be loaded, display a message saying so, and return |
| 963 | zero. Store the bitmap width in *W_PTR and its height in *H_PTR, |
| 964 | if these pointers are not null. */ |
| 965 | |
| 966 | static ptrdiff_t |
| 967 | load_pixmap (FRAME_PTR f, Lisp_Object name, unsigned int *w_ptr, |
| 968 | unsigned int *h_ptr) |
| 969 | { |
| 970 | ptrdiff_t bitmap_id; |
| 971 | |
| 972 | if (NILP (name)) |
| 973 | return 0; |
| 974 | |
| 975 | CHECK_TYPE (!NILP (Fbitmap_spec_p (name)), Qbitmap_spec_p, name); |
| 976 | |
| 977 | BLOCK_INPUT; |
| 978 | if (CONSP (name)) |
| 979 | { |
| 980 | /* Decode a bitmap spec into a bitmap. */ |
| 981 | |
| 982 | int h, w; |
| 983 | Lisp_Object bits; |
| 984 | |
| 985 | w = XINT (Fcar (name)); |
| 986 | h = XINT (Fcar (Fcdr (name))); |
| 987 | bits = Fcar (Fcdr (Fcdr (name))); |
| 988 | |
| 989 | bitmap_id = x_create_bitmap_from_data (f, SSDATA (bits), |
| 990 | w, h); |
| 991 | } |
| 992 | else |
| 993 | { |
| 994 | /* It must be a string -- a file name. */ |
| 995 | bitmap_id = x_create_bitmap_from_file (f, name); |
| 996 | } |
| 997 | UNBLOCK_INPUT; |
| 998 | |
| 999 | if (bitmap_id < 0) |
| 1000 | { |
| 1001 | add_to_log ("Invalid or undefined bitmap `%s'", name, Qnil); |
| 1002 | bitmap_id = 0; |
| 1003 | |
| 1004 | if (w_ptr) |
| 1005 | *w_ptr = 0; |
| 1006 | if (h_ptr) |
| 1007 | *h_ptr = 0; |
| 1008 | } |
| 1009 | else |
| 1010 | { |
| 1011 | #if GLYPH_DEBUG |
| 1012 | ++npixmaps_allocated; |
| 1013 | #endif |
| 1014 | if (w_ptr) |
| 1015 | *w_ptr = x_bitmap_width (f, bitmap_id); |
| 1016 | |
| 1017 | if (h_ptr) |
| 1018 | *h_ptr = x_bitmap_height (f, bitmap_id); |
| 1019 | } |
| 1020 | |
| 1021 | return bitmap_id; |
| 1022 | } |
| 1023 | |
| 1024 | #endif /* HAVE_WINDOW_SYSTEM */ |
| 1025 | |
| 1026 | |
| 1027 | \f |
| 1028 | /*********************************************************************** |
| 1029 | X Colors |
| 1030 | ***********************************************************************/ |
| 1031 | |
| 1032 | /* Parse RGB_LIST, and fill in the RGB fields of COLOR. |
| 1033 | RGB_LIST should contain (at least) 3 lisp integers. |
| 1034 | Return 0 if there's a problem with RGB_LIST, otherwise return 1. */ |
| 1035 | |
| 1036 | static int |
| 1037 | parse_rgb_list (Lisp_Object rgb_list, XColor *color) |
| 1038 | { |
| 1039 | #define PARSE_RGB_LIST_FIELD(field) \ |
| 1040 | if (CONSP (rgb_list) && INTEGERP (XCAR (rgb_list))) \ |
| 1041 | { \ |
| 1042 | color->field = XINT (XCAR (rgb_list)); \ |
| 1043 | rgb_list = XCDR (rgb_list); \ |
| 1044 | } \ |
| 1045 | else \ |
| 1046 | return 0; |
| 1047 | |
| 1048 | PARSE_RGB_LIST_FIELD (red); |
| 1049 | PARSE_RGB_LIST_FIELD (green); |
| 1050 | PARSE_RGB_LIST_FIELD (blue); |
| 1051 | |
| 1052 | return 1; |
| 1053 | } |
| 1054 | |
| 1055 | |
| 1056 | /* Lookup on frame F the color described by the lisp string COLOR. |
| 1057 | The resulting tty color is returned in TTY_COLOR; if STD_COLOR is |
| 1058 | non-zero, then the `standard' definition of the same color is |
| 1059 | returned in it. */ |
| 1060 | |
| 1061 | static int |
| 1062 | tty_lookup_color (struct frame *f, Lisp_Object color, XColor *tty_color, |
| 1063 | XColor *std_color) |
| 1064 | { |
| 1065 | Lisp_Object frame, color_desc; |
| 1066 | |
| 1067 | if (!STRINGP (color) || NILP (Ffboundp (Qtty_color_desc))) |
| 1068 | return 0; |
| 1069 | |
| 1070 | XSETFRAME (frame, f); |
| 1071 | |
| 1072 | color_desc = call2 (Qtty_color_desc, color, frame); |
| 1073 | if (CONSP (color_desc) && CONSP (XCDR (color_desc))) |
| 1074 | { |
| 1075 | Lisp_Object rgb; |
| 1076 | |
| 1077 | if (! INTEGERP (XCAR (XCDR (color_desc)))) |
| 1078 | return 0; |
| 1079 | |
| 1080 | tty_color->pixel = XINT (XCAR (XCDR (color_desc))); |
| 1081 | |
| 1082 | rgb = XCDR (XCDR (color_desc)); |
| 1083 | if (! parse_rgb_list (rgb, tty_color)) |
| 1084 | return 0; |
| 1085 | |
| 1086 | /* Should we fill in STD_COLOR too? */ |
| 1087 | if (std_color) |
| 1088 | { |
| 1089 | /* Default STD_COLOR to the same as TTY_COLOR. */ |
| 1090 | *std_color = *tty_color; |
| 1091 | |
| 1092 | /* Do a quick check to see if the returned descriptor is |
| 1093 | actually _exactly_ equal to COLOR, otherwise we have to |
| 1094 | lookup STD_COLOR separately. If it's impossible to lookup |
| 1095 | a standard color, we just give up and use TTY_COLOR. */ |
| 1096 | if ((!STRINGP (XCAR (color_desc)) |
| 1097 | || NILP (Fstring_equal (color, XCAR (color_desc)))) |
| 1098 | && !NILP (Ffboundp (Qtty_color_standard_values))) |
| 1099 | { |
| 1100 | /* Look up STD_COLOR separately. */ |
| 1101 | rgb = call1 (Qtty_color_standard_values, color); |
| 1102 | if (! parse_rgb_list (rgb, std_color)) |
| 1103 | return 0; |
| 1104 | } |
| 1105 | } |
| 1106 | |
| 1107 | return 1; |
| 1108 | } |
| 1109 | else if (NILP (Fsymbol_value (intern ("tty-defined-color-alist")))) |
| 1110 | /* We were called early during startup, and the colors are not |
| 1111 | yet set up in tty-defined-color-alist. Don't return a failure |
| 1112 | indication, since this produces the annoying "Unable to |
| 1113 | load color" messages in the *Messages* buffer. */ |
| 1114 | return 1; |
| 1115 | else |
| 1116 | /* tty-color-desc seems to have returned a bad value. */ |
| 1117 | return 0; |
| 1118 | } |
| 1119 | |
| 1120 | /* A version of defined_color for non-X frames. */ |
| 1121 | |
| 1122 | static int |
| 1123 | tty_defined_color (struct frame *f, const char *color_name, |
| 1124 | XColor *color_def, int alloc) |
| 1125 | { |
| 1126 | int status = 1; |
| 1127 | |
| 1128 | /* Defaults. */ |
| 1129 | color_def->pixel = FACE_TTY_DEFAULT_COLOR; |
| 1130 | color_def->red = 0; |
| 1131 | color_def->blue = 0; |
| 1132 | color_def->green = 0; |
| 1133 | |
| 1134 | if (*color_name) |
| 1135 | status = tty_lookup_color (f, build_string (color_name), color_def, NULL); |
| 1136 | |
| 1137 | if (color_def->pixel == FACE_TTY_DEFAULT_COLOR && *color_name) |
| 1138 | { |
| 1139 | if (strcmp (color_name, "unspecified-fg") == 0) |
| 1140 | color_def->pixel = FACE_TTY_DEFAULT_FG_COLOR; |
| 1141 | else if (strcmp (color_name, "unspecified-bg") == 0) |
| 1142 | color_def->pixel = FACE_TTY_DEFAULT_BG_COLOR; |
| 1143 | } |
| 1144 | |
| 1145 | if (color_def->pixel != FACE_TTY_DEFAULT_COLOR) |
| 1146 | status = 1; |
| 1147 | |
| 1148 | return status; |
| 1149 | } |
| 1150 | |
| 1151 | |
| 1152 | /* Decide if color named COLOR_NAME is valid for the display |
| 1153 | associated with the frame F; if so, return the rgb values in |
| 1154 | COLOR_DEF. If ALLOC is nonzero, allocate a new colormap cell. |
| 1155 | |
| 1156 | This does the right thing for any type of frame. */ |
| 1157 | |
| 1158 | static int |
| 1159 | defined_color (struct frame *f, const char *color_name, XColor *color_def, |
| 1160 | int alloc) |
| 1161 | { |
| 1162 | if (!FRAME_WINDOW_P (f)) |
| 1163 | return tty_defined_color (f, color_name, color_def, alloc); |
| 1164 | #ifdef HAVE_X_WINDOWS |
| 1165 | else if (FRAME_X_P (f)) |
| 1166 | return x_defined_color (f, color_name, color_def, alloc); |
| 1167 | #endif |
| 1168 | #ifdef WINDOWSNT |
| 1169 | else if (FRAME_W32_P (f)) |
| 1170 | return w32_defined_color (f, color_name, color_def, alloc); |
| 1171 | #endif |
| 1172 | #ifdef HAVE_NS |
| 1173 | else if (FRAME_NS_P (f)) |
| 1174 | return ns_defined_color (f, color_name, color_def, alloc, 1); |
| 1175 | #endif |
| 1176 | else |
| 1177 | abort (); |
| 1178 | } |
| 1179 | |
| 1180 | |
| 1181 | /* Given the index IDX of a tty color on frame F, return its name, a |
| 1182 | Lisp string. */ |
| 1183 | |
| 1184 | Lisp_Object |
| 1185 | tty_color_name (struct frame *f, int idx) |
| 1186 | { |
| 1187 | if (idx >= 0 && !NILP (Ffboundp (Qtty_color_by_index))) |
| 1188 | { |
| 1189 | Lisp_Object frame; |
| 1190 | Lisp_Object coldesc; |
| 1191 | |
| 1192 | XSETFRAME (frame, f); |
| 1193 | coldesc = call2 (Qtty_color_by_index, make_number (idx), frame); |
| 1194 | |
| 1195 | if (!NILP (coldesc)) |
| 1196 | return XCAR (coldesc); |
| 1197 | } |
| 1198 | #ifdef MSDOS |
| 1199 | /* We can have an MSDOG frame under -nw for a short window of |
| 1200 | opportunity before internal_terminal_init is called. DTRT. */ |
| 1201 | if (FRAME_MSDOS_P (f) && !inhibit_window_system) |
| 1202 | return msdos_stdcolor_name (idx); |
| 1203 | #endif |
| 1204 | |
| 1205 | if (idx == FACE_TTY_DEFAULT_FG_COLOR) |
| 1206 | return build_string (unspecified_fg); |
| 1207 | if (idx == FACE_TTY_DEFAULT_BG_COLOR) |
| 1208 | return build_string (unspecified_bg); |
| 1209 | |
| 1210 | return Qunspecified; |
| 1211 | } |
| 1212 | |
| 1213 | |
| 1214 | /* Return non-zero if COLOR_NAME is a shade of gray (or white or |
| 1215 | black) on frame F. |
| 1216 | |
| 1217 | The criterion implemented here is not a terribly sophisticated one. */ |
| 1218 | |
| 1219 | static int |
| 1220 | face_color_gray_p (struct frame *f, const char *color_name) |
| 1221 | { |
| 1222 | XColor color; |
| 1223 | int gray_p; |
| 1224 | |
| 1225 | if (defined_color (f, color_name, &color, 0)) |
| 1226 | gray_p = (/* Any color sufficiently close to black counts as gray. */ |
| 1227 | (color.red < 5000 && color.green < 5000 && color.blue < 5000) |
| 1228 | || |
| 1229 | ((eabs (color.red - color.green) |
| 1230 | < max (color.red, color.green) / 20) |
| 1231 | && (eabs (color.green - color.blue) |
| 1232 | < max (color.green, color.blue) / 20) |
| 1233 | && (eabs (color.blue - color.red) |
| 1234 | < max (color.blue, color.red) / 20))); |
| 1235 | else |
| 1236 | gray_p = 0; |
| 1237 | |
| 1238 | return gray_p; |
| 1239 | } |
| 1240 | |
| 1241 | |
| 1242 | /* Return non-zero if color COLOR_NAME can be displayed on frame F. |
| 1243 | BACKGROUND_P non-zero means the color will be used as background |
| 1244 | color. */ |
| 1245 | |
| 1246 | static int |
| 1247 | face_color_supported_p (struct frame *f, const char *color_name, |
| 1248 | int background_p) |
| 1249 | { |
| 1250 | Lisp_Object frame; |
| 1251 | XColor not_used; |
| 1252 | |
| 1253 | XSETFRAME (frame, f); |
| 1254 | return |
| 1255 | #ifdef HAVE_WINDOW_SYSTEM |
| 1256 | FRAME_WINDOW_P (f) |
| 1257 | ? (!NILP (Fxw_display_color_p (frame)) |
| 1258 | || xstrcasecmp (color_name, "black") == 0 |
| 1259 | || xstrcasecmp (color_name, "white") == 0 |
| 1260 | || (background_p |
| 1261 | && face_color_gray_p (f, color_name)) |
| 1262 | || (!NILP (Fx_display_grayscale_p (frame)) |
| 1263 | && face_color_gray_p (f, color_name))) |
| 1264 | : |
| 1265 | #endif |
| 1266 | tty_defined_color (f, color_name, ¬_used, 0); |
| 1267 | } |
| 1268 | |
| 1269 | |
| 1270 | DEFUN ("color-gray-p", Fcolor_gray_p, Scolor_gray_p, 1, 2, 0, |
| 1271 | doc: /* Return non-nil if COLOR is a shade of gray (or white or black). |
| 1272 | FRAME specifies the frame and thus the display for interpreting COLOR. |
| 1273 | If FRAME is nil or omitted, use the selected frame. */) |
| 1274 | (Lisp_Object color, Lisp_Object frame) |
| 1275 | { |
| 1276 | struct frame *f; |
| 1277 | |
| 1278 | CHECK_STRING (color); |
| 1279 | if (NILP (frame)) |
| 1280 | frame = selected_frame; |
| 1281 | else |
| 1282 | CHECK_FRAME (frame); |
| 1283 | f = XFRAME (frame); |
| 1284 | return face_color_gray_p (f, SSDATA (color)) ? Qt : Qnil; |
| 1285 | } |
| 1286 | |
| 1287 | |
| 1288 | DEFUN ("color-supported-p", Fcolor_supported_p, |
| 1289 | Scolor_supported_p, 1, 3, 0, |
| 1290 | doc: /* Return non-nil if COLOR can be displayed on FRAME. |
| 1291 | BACKGROUND-P non-nil means COLOR is used as a background. |
| 1292 | Otherwise, this function tells whether it can be used as a foreground. |
| 1293 | If FRAME is nil or omitted, use the selected frame. |
| 1294 | COLOR must be a valid color name. */) |
| 1295 | (Lisp_Object color, Lisp_Object frame, Lisp_Object background_p) |
| 1296 | { |
| 1297 | struct frame *f; |
| 1298 | |
| 1299 | CHECK_STRING (color); |
| 1300 | if (NILP (frame)) |
| 1301 | frame = selected_frame; |
| 1302 | else |
| 1303 | CHECK_FRAME (frame); |
| 1304 | f = XFRAME (frame); |
| 1305 | if (face_color_supported_p (f, SSDATA (color), !NILP (background_p))) |
| 1306 | return Qt; |
| 1307 | return Qnil; |
| 1308 | } |
| 1309 | |
| 1310 | |
| 1311 | /* Load color with name NAME for use by face FACE on frame F. |
| 1312 | TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX, |
| 1313 | LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX, |
| 1314 | LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the |
| 1315 | pixel color. If color cannot be loaded, display a message, and |
| 1316 | return the foreground, background or underline color of F, but |
| 1317 | record that fact in flags of the face so that we don't try to free |
| 1318 | these colors. */ |
| 1319 | |
| 1320 | unsigned long |
| 1321 | load_color (struct frame *f, struct face *face, Lisp_Object name, |
| 1322 | enum lface_attribute_index target_index) |
| 1323 | { |
| 1324 | XColor color; |
| 1325 | |
| 1326 | xassert (STRINGP (name)); |
| 1327 | xassert (target_index == LFACE_FOREGROUND_INDEX |
| 1328 | || target_index == LFACE_BACKGROUND_INDEX |
| 1329 | || target_index == LFACE_UNDERLINE_INDEX |
| 1330 | || target_index == LFACE_OVERLINE_INDEX |
| 1331 | || target_index == LFACE_STRIKE_THROUGH_INDEX |
| 1332 | || target_index == LFACE_BOX_INDEX); |
| 1333 | |
| 1334 | /* if the color map is full, defined_color will return a best match |
| 1335 | to the values in an existing cell. */ |
| 1336 | if (!defined_color (f, SSDATA (name), &color, 1)) |
| 1337 | { |
| 1338 | add_to_log ("Unable to load color \"%s\"", name, Qnil); |
| 1339 | |
| 1340 | switch (target_index) |
| 1341 | { |
| 1342 | case LFACE_FOREGROUND_INDEX: |
| 1343 | face->foreground_defaulted_p = 1; |
| 1344 | color.pixel = FRAME_FOREGROUND_PIXEL (f); |
| 1345 | break; |
| 1346 | |
| 1347 | case LFACE_BACKGROUND_INDEX: |
| 1348 | face->background_defaulted_p = 1; |
| 1349 | color.pixel = FRAME_BACKGROUND_PIXEL (f); |
| 1350 | break; |
| 1351 | |
| 1352 | case LFACE_UNDERLINE_INDEX: |
| 1353 | face->underline_defaulted_p = 1; |
| 1354 | color.pixel = FRAME_FOREGROUND_PIXEL (f); |
| 1355 | break; |
| 1356 | |
| 1357 | case LFACE_OVERLINE_INDEX: |
| 1358 | face->overline_color_defaulted_p = 1; |
| 1359 | color.pixel = FRAME_FOREGROUND_PIXEL (f); |
| 1360 | break; |
| 1361 | |
| 1362 | case LFACE_STRIKE_THROUGH_INDEX: |
| 1363 | face->strike_through_color_defaulted_p = 1; |
| 1364 | color.pixel = FRAME_FOREGROUND_PIXEL (f); |
| 1365 | break; |
| 1366 | |
| 1367 | case LFACE_BOX_INDEX: |
| 1368 | face->box_color_defaulted_p = 1; |
| 1369 | color.pixel = FRAME_FOREGROUND_PIXEL (f); |
| 1370 | break; |
| 1371 | |
| 1372 | default: |
| 1373 | abort (); |
| 1374 | } |
| 1375 | } |
| 1376 | #if GLYPH_DEBUG |
| 1377 | else |
| 1378 | ++ncolors_allocated; |
| 1379 | #endif |
| 1380 | |
| 1381 | return color.pixel; |
| 1382 | } |
| 1383 | |
| 1384 | |
| 1385 | #ifdef HAVE_WINDOW_SYSTEM |
| 1386 | |
| 1387 | /* Load colors for face FACE which is used on frame F. Colors are |
| 1388 | specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX |
| 1389 | of ATTRS. If the background color specified is not supported on F, |
| 1390 | try to emulate gray colors with a stipple from Vface_default_stipple. */ |
| 1391 | |
| 1392 | static void |
| 1393 | load_face_colors (struct frame *f, struct face *face, Lisp_Object *attrs) |
| 1394 | { |
| 1395 | Lisp_Object fg, bg; |
| 1396 | |
| 1397 | bg = attrs[LFACE_BACKGROUND_INDEX]; |
| 1398 | fg = attrs[LFACE_FOREGROUND_INDEX]; |
| 1399 | |
| 1400 | /* Swap colors if face is inverse-video. */ |
| 1401 | if (EQ (attrs[LFACE_INVERSE_INDEX], Qt)) |
| 1402 | { |
| 1403 | Lisp_Object tmp; |
| 1404 | tmp = fg; |
| 1405 | fg = bg; |
| 1406 | bg = tmp; |
| 1407 | } |
| 1408 | |
| 1409 | /* Check for support for foreground, not for background because |
| 1410 | face_color_supported_p is smart enough to know that grays are |
| 1411 | "supported" as background because we are supposed to use stipple |
| 1412 | for them. */ |
| 1413 | if (!face_color_supported_p (f, SSDATA (bg), 0) |
| 1414 | && !NILP (Fbitmap_spec_p (Vface_default_stipple))) |
| 1415 | { |
| 1416 | x_destroy_bitmap (f, face->stipple); |
| 1417 | face->stipple = load_pixmap (f, Vface_default_stipple, |
| 1418 | &face->pixmap_w, &face->pixmap_h); |
| 1419 | } |
| 1420 | |
| 1421 | face->background = load_color (f, face, bg, LFACE_BACKGROUND_INDEX); |
| 1422 | face->foreground = load_color (f, face, fg, LFACE_FOREGROUND_INDEX); |
| 1423 | } |
| 1424 | |
| 1425 | |
| 1426 | /* Free color PIXEL on frame F. */ |
| 1427 | |
| 1428 | void |
| 1429 | unload_color (struct frame *f, long unsigned int pixel) |
| 1430 | { |
| 1431 | #ifdef HAVE_X_WINDOWS |
| 1432 | if (pixel != -1) |
| 1433 | { |
| 1434 | BLOCK_INPUT; |
| 1435 | x_free_colors (f, &pixel, 1); |
| 1436 | UNBLOCK_INPUT; |
| 1437 | } |
| 1438 | #endif |
| 1439 | } |
| 1440 | |
| 1441 | |
| 1442 | /* Free colors allocated for FACE. */ |
| 1443 | |
| 1444 | static void |
| 1445 | free_face_colors (struct frame *f, struct face *face) |
| 1446 | { |
| 1447 | /* PENDING(NS): need to do something here? */ |
| 1448 | #ifdef HAVE_X_WINDOWS |
| 1449 | if (face->colors_copied_bitwise_p) |
| 1450 | return; |
| 1451 | |
| 1452 | BLOCK_INPUT; |
| 1453 | |
| 1454 | if (!face->foreground_defaulted_p) |
| 1455 | { |
| 1456 | x_free_colors (f, &face->foreground, 1); |
| 1457 | IF_DEBUG (--ncolors_allocated); |
| 1458 | } |
| 1459 | |
| 1460 | if (!face->background_defaulted_p) |
| 1461 | { |
| 1462 | x_free_colors (f, &face->background, 1); |
| 1463 | IF_DEBUG (--ncolors_allocated); |
| 1464 | } |
| 1465 | |
| 1466 | if (face->underline_p |
| 1467 | && !face->underline_defaulted_p) |
| 1468 | { |
| 1469 | x_free_colors (f, &face->underline_color, 1); |
| 1470 | IF_DEBUG (--ncolors_allocated); |
| 1471 | } |
| 1472 | |
| 1473 | if (face->overline_p |
| 1474 | && !face->overline_color_defaulted_p) |
| 1475 | { |
| 1476 | x_free_colors (f, &face->overline_color, 1); |
| 1477 | IF_DEBUG (--ncolors_allocated); |
| 1478 | } |
| 1479 | |
| 1480 | if (face->strike_through_p |
| 1481 | && !face->strike_through_color_defaulted_p) |
| 1482 | { |
| 1483 | x_free_colors (f, &face->strike_through_color, 1); |
| 1484 | IF_DEBUG (--ncolors_allocated); |
| 1485 | } |
| 1486 | |
| 1487 | if (face->box != FACE_NO_BOX |
| 1488 | && !face->box_color_defaulted_p) |
| 1489 | { |
| 1490 | x_free_colors (f, &face->box_color, 1); |
| 1491 | IF_DEBUG (--ncolors_allocated); |
| 1492 | } |
| 1493 | |
| 1494 | UNBLOCK_INPUT; |
| 1495 | #endif /* HAVE_X_WINDOWS */ |
| 1496 | } |
| 1497 | |
| 1498 | #endif /* HAVE_WINDOW_SYSTEM */ |
| 1499 | |
| 1500 | |
| 1501 | \f |
| 1502 | /*********************************************************************** |
| 1503 | XLFD Font Names |
| 1504 | ***********************************************************************/ |
| 1505 | |
| 1506 | /* An enumerator for each field of an XLFD font name. */ |
| 1507 | |
| 1508 | enum xlfd_field |
| 1509 | { |
| 1510 | XLFD_FOUNDRY, |
| 1511 | XLFD_FAMILY, |
| 1512 | XLFD_WEIGHT, |
| 1513 | XLFD_SLANT, |
| 1514 | XLFD_SWIDTH, |
| 1515 | XLFD_ADSTYLE, |
| 1516 | XLFD_PIXEL_SIZE, |
| 1517 | XLFD_POINT_SIZE, |
| 1518 | XLFD_RESX, |
| 1519 | XLFD_RESY, |
| 1520 | XLFD_SPACING, |
| 1521 | XLFD_AVGWIDTH, |
| 1522 | XLFD_REGISTRY, |
| 1523 | XLFD_ENCODING, |
| 1524 | XLFD_LAST |
| 1525 | }; |
| 1526 | |
| 1527 | /* An enumerator for each possible slant value of a font. Taken from |
| 1528 | the XLFD specification. */ |
| 1529 | |
| 1530 | enum xlfd_slant |
| 1531 | { |
| 1532 | XLFD_SLANT_UNKNOWN, |
| 1533 | XLFD_SLANT_ROMAN, |
| 1534 | XLFD_SLANT_ITALIC, |
| 1535 | XLFD_SLANT_OBLIQUE, |
| 1536 | XLFD_SLANT_REVERSE_ITALIC, |
| 1537 | XLFD_SLANT_REVERSE_OBLIQUE, |
| 1538 | XLFD_SLANT_OTHER |
| 1539 | }; |
| 1540 | |
| 1541 | /* Relative font weight according to XLFD documentation. */ |
| 1542 | |
| 1543 | enum xlfd_weight |
| 1544 | { |
| 1545 | XLFD_WEIGHT_UNKNOWN, |
| 1546 | XLFD_WEIGHT_ULTRA_LIGHT, /* 10 */ |
| 1547 | XLFD_WEIGHT_EXTRA_LIGHT, /* 20 */ |
| 1548 | XLFD_WEIGHT_LIGHT, /* 30 */ |
| 1549 | XLFD_WEIGHT_SEMI_LIGHT, /* 40: SemiLight, Book, ... */ |
| 1550 | XLFD_WEIGHT_MEDIUM, /* 50: Medium, Normal, Regular, ... */ |
| 1551 | XLFD_WEIGHT_SEMI_BOLD, /* 60: SemiBold, DemiBold, ... */ |
| 1552 | XLFD_WEIGHT_BOLD, /* 70: Bold, ... */ |
| 1553 | XLFD_WEIGHT_EXTRA_BOLD, /* 80: ExtraBold, Heavy, ... */ |
| 1554 | XLFD_WEIGHT_ULTRA_BOLD /* 90: UltraBold, Black, ... */ |
| 1555 | }; |
| 1556 | |
| 1557 | /* Relative proportionate width. */ |
| 1558 | |
| 1559 | enum xlfd_swidth |
| 1560 | { |
| 1561 | XLFD_SWIDTH_UNKNOWN, |
| 1562 | XLFD_SWIDTH_ULTRA_CONDENSED, /* 10 */ |
| 1563 | XLFD_SWIDTH_EXTRA_CONDENSED, /* 20 */ |
| 1564 | XLFD_SWIDTH_CONDENSED, /* 30: Condensed, Narrow, Compressed, ... */ |
| 1565 | XLFD_SWIDTH_SEMI_CONDENSED, /* 40: semicondensed */ |
| 1566 | XLFD_SWIDTH_MEDIUM, /* 50: Medium, Normal, Regular, ... */ |
| 1567 | XLFD_SWIDTH_SEMI_EXPANDED, /* 60: SemiExpanded, DemiExpanded, ... */ |
| 1568 | XLFD_SWIDTH_EXPANDED, /* 70: Expanded... */ |
| 1569 | XLFD_SWIDTH_EXTRA_EXPANDED, /* 80: ExtraExpanded, Wide... */ |
| 1570 | XLFD_SWIDTH_ULTRA_EXPANDED /* 90: UltraExpanded... */ |
| 1571 | }; |
| 1572 | |
| 1573 | /* Order by which font selection chooses fonts. The default values |
| 1574 | mean `first, find a best match for the font width, then for the |
| 1575 | font height, then for weight, then for slant.' This variable can be |
| 1576 | set via set-face-font-sort-order. */ |
| 1577 | |
| 1578 | static int font_sort_order[4]; |
| 1579 | |
| 1580 | #ifdef HAVE_WINDOW_SYSTEM |
| 1581 | |
| 1582 | static enum font_property_index font_props_for_sorting[FONT_SIZE_INDEX]; |
| 1583 | |
| 1584 | static int |
| 1585 | compare_fonts_by_sort_order (const void *v1, const void *v2) |
| 1586 | { |
| 1587 | Lisp_Object font1 = *(Lisp_Object *) v1; |
| 1588 | Lisp_Object font2 = *(Lisp_Object *) v2; |
| 1589 | int i; |
| 1590 | |
| 1591 | for (i = 0; i < FONT_SIZE_INDEX; i++) |
| 1592 | { |
| 1593 | enum font_property_index idx = font_props_for_sorting[i]; |
| 1594 | Lisp_Object val1 = AREF (font1, idx), val2 = AREF (font2, idx); |
| 1595 | int result; |
| 1596 | |
| 1597 | if (idx <= FONT_REGISTRY_INDEX) |
| 1598 | { |
| 1599 | if (STRINGP (val1)) |
| 1600 | result = STRINGP (val2) ? strcmp (SSDATA (val1), SSDATA (val2)) : -1; |
| 1601 | else |
| 1602 | result = STRINGP (val2) ? 1 : 0; |
| 1603 | } |
| 1604 | else |
| 1605 | { |
| 1606 | if (INTEGERP (val1)) |
| 1607 | result = INTEGERP (val2) ? XINT (val1) - XINT (val2) : -1; |
| 1608 | else |
| 1609 | result = INTEGERP (val2) ? 1 : 0; |
| 1610 | } |
| 1611 | if (result) |
| 1612 | return result; |
| 1613 | } |
| 1614 | return 0; |
| 1615 | } |
| 1616 | |
| 1617 | DEFUN ("x-family-fonts", Fx_family_fonts, Sx_family_fonts, 0, 2, 0, |
| 1618 | doc: /* Return a list of available fonts of family FAMILY on FRAME. |
| 1619 | If FAMILY is omitted or nil, list all families. |
| 1620 | Otherwise, FAMILY must be a string, possibly containing wildcards |
| 1621 | `?' and `*'. |
| 1622 | If FRAME is omitted or nil, use the selected frame. |
| 1623 | Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT |
| 1624 | SLANT FIXED-P FULL REGISTRY-AND-ENCODING]. |
| 1625 | FAMILY is the font family name. POINT-SIZE is the size of the |
| 1626 | font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the |
| 1627 | width, weight and slant of the font. These symbols are the same as for |
| 1628 | face attributes. FIXED-P is non-nil if the font is fixed-pitch. |
| 1629 | FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string |
| 1630 | giving the registry and encoding of the font. |
| 1631 | The result list is sorted according to the current setting of |
| 1632 | the face font sort order. */) |
| 1633 | (Lisp_Object family, Lisp_Object frame) |
| 1634 | { |
| 1635 | Lisp_Object font_spec, list, *drivers, vec; |
| 1636 | int i, nfonts, ndrivers; |
| 1637 | Lisp_Object result; |
| 1638 | |
| 1639 | if (NILP (frame)) |
| 1640 | frame = selected_frame; |
| 1641 | CHECK_LIVE_FRAME (frame); |
| 1642 | |
| 1643 | font_spec = Ffont_spec (0, NULL); |
| 1644 | if (!NILP (family)) |
| 1645 | { |
| 1646 | CHECK_STRING (family); |
| 1647 | font_parse_family_registry (family, Qnil, font_spec); |
| 1648 | } |
| 1649 | |
| 1650 | list = font_list_entities (frame, font_spec); |
| 1651 | if (NILP (list)) |
| 1652 | return Qnil; |
| 1653 | |
| 1654 | /* Sort the font entities. */ |
| 1655 | for (i = 0; i < 4; i++) |
| 1656 | switch (font_sort_order[i]) |
| 1657 | { |
| 1658 | case XLFD_SWIDTH: |
| 1659 | font_props_for_sorting[i] = FONT_WIDTH_INDEX; break; |
| 1660 | case XLFD_POINT_SIZE: |
| 1661 | font_props_for_sorting[i] = FONT_SIZE_INDEX; break; |
| 1662 | case XLFD_WEIGHT: |
| 1663 | font_props_for_sorting[i] = FONT_WEIGHT_INDEX; break; |
| 1664 | default: |
| 1665 | font_props_for_sorting[i] = FONT_SLANT_INDEX; break; |
| 1666 | } |
| 1667 | font_props_for_sorting[i++] = FONT_FAMILY_INDEX; |
| 1668 | font_props_for_sorting[i++] = FONT_FOUNDRY_INDEX; |
| 1669 | font_props_for_sorting[i++] = FONT_ADSTYLE_INDEX; |
| 1670 | font_props_for_sorting[i++] = FONT_REGISTRY_INDEX; |
| 1671 | |
| 1672 | ndrivers = XINT (Flength (list)); |
| 1673 | drivers = alloca (sizeof (Lisp_Object) * ndrivers); |
| 1674 | for (i = 0; i < ndrivers; i++, list = XCDR (list)) |
| 1675 | drivers[i] = XCAR (list); |
| 1676 | vec = Fvconcat (ndrivers, drivers); |
| 1677 | nfonts = ASIZE (vec); |
| 1678 | |
| 1679 | qsort (XVECTOR (vec)->contents, nfonts, sizeof (Lisp_Object), |
| 1680 | compare_fonts_by_sort_order); |
| 1681 | |
| 1682 | result = Qnil; |
| 1683 | for (i = nfonts - 1; i >= 0; --i) |
| 1684 | { |
| 1685 | Lisp_Object font = AREF (vec, i); |
| 1686 | Lisp_Object v = Fmake_vector (make_number (8), Qnil); |
| 1687 | int point; |
| 1688 | Lisp_Object spacing; |
| 1689 | |
| 1690 | ASET (v, 0, AREF (font, FONT_FAMILY_INDEX)); |
| 1691 | ASET (v, 1, FONT_WIDTH_SYMBOLIC (font)); |
| 1692 | point = PIXEL_TO_POINT (XINT (AREF (font, FONT_SIZE_INDEX)) * 10, |
| 1693 | XFRAME (frame)->resy); |
| 1694 | ASET (v, 2, make_number (point)); |
| 1695 | ASET (v, 3, FONT_WEIGHT_SYMBOLIC (font)); |
| 1696 | ASET (v, 4, FONT_SLANT_SYMBOLIC (font)); |
| 1697 | spacing = Ffont_get (font, QCspacing); |
| 1698 | ASET (v, 5, (NILP (spacing) || EQ (spacing, Qp)) ? Qnil : Qt); |
| 1699 | ASET (v, 6, Ffont_xlfd_name (font, Qnil)); |
| 1700 | ASET (v, 7, AREF (font, FONT_REGISTRY_INDEX)); |
| 1701 | |
| 1702 | result = Fcons (v, result); |
| 1703 | } |
| 1704 | |
| 1705 | return result; |
| 1706 | } |
| 1707 | |
| 1708 | DEFUN ("x-list-fonts", Fx_list_fonts, Sx_list_fonts, 1, 5, 0, |
| 1709 | doc: /* Return a list of the names of available fonts matching PATTERN. |
| 1710 | If optional arguments FACE and FRAME are specified, return only fonts |
| 1711 | the same size as FACE on FRAME. |
| 1712 | |
| 1713 | PATTERN should be a string containing a font name in the XLFD, |
| 1714 | Fontconfig, or GTK format. A font name given in the XLFD format may |
| 1715 | contain wildcard characters: |
| 1716 | the * character matches any substring, and |
| 1717 | the ? character matches any single character. |
| 1718 | PATTERN is case-insensitive. |
| 1719 | |
| 1720 | The return value is a list of strings, suitable as arguments to |
| 1721 | `set-face-font'. |
| 1722 | |
| 1723 | Fonts Emacs can't use may or may not be excluded |
| 1724 | even if they match PATTERN and FACE. |
| 1725 | The optional fourth argument MAXIMUM sets a limit on how many |
| 1726 | fonts to match. The first MAXIMUM fonts are reported. |
| 1727 | The optional fifth argument WIDTH, if specified, is a number of columns |
| 1728 | occupied by a character of a font. In that case, return only fonts |
| 1729 | the WIDTH times as wide as FACE on FRAME. */) |
| 1730 | (Lisp_Object pattern, Lisp_Object face, Lisp_Object frame, |
| 1731 | Lisp_Object maximum, Lisp_Object width) |
| 1732 | { |
| 1733 | struct frame *f; |
| 1734 | int size, avgwidth IF_LINT (= 0); |
| 1735 | |
| 1736 | check_x (); |
| 1737 | CHECK_STRING (pattern); |
| 1738 | |
| 1739 | if (! NILP (maximum)) |
| 1740 | CHECK_NATNUM (maximum); |
| 1741 | |
| 1742 | if (!NILP (width)) |
| 1743 | CHECK_NUMBER (width); |
| 1744 | |
| 1745 | /* We can't simply call check_x_frame because this function may be |
| 1746 | called before any frame is created. */ |
| 1747 | if (NILP (frame)) |
| 1748 | frame = selected_frame; |
| 1749 | f = frame_or_selected_frame (frame, 2); |
| 1750 | if (! FRAME_WINDOW_P (f)) |
| 1751 | { |
| 1752 | /* Perhaps we have not yet created any frame. */ |
| 1753 | f = NULL; |
| 1754 | frame = Qnil; |
| 1755 | face = Qnil; |
| 1756 | } |
| 1757 | |
| 1758 | /* Determine the width standard for comparison with the fonts we find. */ |
| 1759 | |
| 1760 | if (NILP (face)) |
| 1761 | size = 0; |
| 1762 | else |
| 1763 | { |
| 1764 | /* This is of limited utility since it works with character |
| 1765 | widths. Keep it for compatibility. --gerd. */ |
| 1766 | int face_id = lookup_named_face (f, face, 0); |
| 1767 | struct face *width_face = (face_id < 0 |
| 1768 | ? NULL |
| 1769 | : FACE_FROM_ID (f, face_id)); |
| 1770 | |
| 1771 | if (width_face && width_face->font) |
| 1772 | { |
| 1773 | size = width_face->font->pixel_size; |
| 1774 | avgwidth = width_face->font->average_width; |
| 1775 | } |
| 1776 | else |
| 1777 | { |
| 1778 | size = FRAME_FONT (f)->pixel_size; |
| 1779 | avgwidth = FRAME_FONT (f)->average_width; |
| 1780 | } |
| 1781 | if (!NILP (width)) |
| 1782 | avgwidth *= XINT (width); |
| 1783 | } |
| 1784 | |
| 1785 | { |
| 1786 | Lisp_Object font_spec; |
| 1787 | Lisp_Object args[2], tail; |
| 1788 | |
| 1789 | font_spec = font_spec_from_name (pattern); |
| 1790 | if (!FONTP (font_spec)) |
| 1791 | signal_error ("Invalid font name", pattern); |
| 1792 | |
| 1793 | if (size) |
| 1794 | { |
| 1795 | Ffont_put (font_spec, QCsize, make_number (size)); |
| 1796 | Ffont_put (font_spec, QCavgwidth, make_number (avgwidth)); |
| 1797 | } |
| 1798 | args[0] = Flist_fonts (font_spec, frame, maximum, font_spec); |
| 1799 | for (tail = args[0]; CONSP (tail); tail = XCDR (tail)) |
| 1800 | { |
| 1801 | Lisp_Object font_entity; |
| 1802 | |
| 1803 | font_entity = XCAR (tail); |
| 1804 | if ((NILP (AREF (font_entity, FONT_SIZE_INDEX)) |
| 1805 | || XINT (AREF (font_entity, FONT_SIZE_INDEX)) == 0) |
| 1806 | && ! NILP (AREF (font_spec, FONT_SIZE_INDEX))) |
| 1807 | { |
| 1808 | /* This is a scalable font. For backward compatibility, |
| 1809 | we set the specified size. */ |
| 1810 | font_entity = copy_font_spec (font_entity); |
| 1811 | ASET (font_entity, FONT_SIZE_INDEX, |
| 1812 | AREF (font_spec, FONT_SIZE_INDEX)); |
| 1813 | } |
| 1814 | XSETCAR (tail, Ffont_xlfd_name (font_entity, Qnil)); |
| 1815 | } |
| 1816 | if (NILP (frame)) |
| 1817 | /* We don't have to check fontsets. */ |
| 1818 | return args[0]; |
| 1819 | args[1] = list_fontsets (f, pattern, size); |
| 1820 | return Fnconc (2, args); |
| 1821 | } |
| 1822 | } |
| 1823 | |
| 1824 | #endif /* HAVE_WINDOW_SYSTEM */ |
| 1825 | |
| 1826 | \f |
| 1827 | /*********************************************************************** |
| 1828 | Lisp Faces |
| 1829 | ***********************************************************************/ |
| 1830 | |
| 1831 | /* Access face attributes of face LFACE, a Lisp vector. */ |
| 1832 | |
| 1833 | #define LFACE_FAMILY(LFACE) AREF ((LFACE), LFACE_FAMILY_INDEX) |
| 1834 | #define LFACE_FOUNDRY(LFACE) AREF ((LFACE), LFACE_FOUNDRY_INDEX) |
| 1835 | #define LFACE_HEIGHT(LFACE) AREF ((LFACE), LFACE_HEIGHT_INDEX) |
| 1836 | #define LFACE_WEIGHT(LFACE) AREF ((LFACE), LFACE_WEIGHT_INDEX) |
| 1837 | #define LFACE_SLANT(LFACE) AREF ((LFACE), LFACE_SLANT_INDEX) |
| 1838 | #define LFACE_UNDERLINE(LFACE) AREF ((LFACE), LFACE_UNDERLINE_INDEX) |
| 1839 | #define LFACE_INVERSE(LFACE) AREF ((LFACE), LFACE_INVERSE_INDEX) |
| 1840 | #define LFACE_FOREGROUND(LFACE) AREF ((LFACE), LFACE_FOREGROUND_INDEX) |
| 1841 | #define LFACE_BACKGROUND(LFACE) AREF ((LFACE), LFACE_BACKGROUND_INDEX) |
| 1842 | #define LFACE_STIPPLE(LFACE) AREF ((LFACE), LFACE_STIPPLE_INDEX) |
| 1843 | #define LFACE_SWIDTH(LFACE) AREF ((LFACE), LFACE_SWIDTH_INDEX) |
| 1844 | #define LFACE_OVERLINE(LFACE) AREF ((LFACE), LFACE_OVERLINE_INDEX) |
| 1845 | #define LFACE_STRIKE_THROUGH(LFACE) AREF ((LFACE), LFACE_STRIKE_THROUGH_INDEX) |
| 1846 | #define LFACE_BOX(LFACE) AREF ((LFACE), LFACE_BOX_INDEX) |
| 1847 | #define LFACE_FONT(LFACE) AREF ((LFACE), LFACE_FONT_INDEX) |
| 1848 | #define LFACE_INHERIT(LFACE) AREF ((LFACE), LFACE_INHERIT_INDEX) |
| 1849 | #define LFACE_FONTSET(LFACE) AREF ((LFACE), LFACE_FONTSET_INDEX) |
| 1850 | |
| 1851 | #if XASSERTS |
| 1852 | /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size |
| 1853 | LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */ |
| 1854 | |
| 1855 | #define LFACEP(LFACE) \ |
| 1856 | (VECTORP (LFACE) \ |
| 1857 | && ASIZE (LFACE) == LFACE_VECTOR_SIZE \ |
| 1858 | && EQ (AREF (LFACE, 0), Qface)) |
| 1859 | #endif |
| 1860 | |
| 1861 | |
| 1862 | #if GLYPH_DEBUG |
| 1863 | |
| 1864 | /* Check consistency of Lisp face attribute vector ATTRS. */ |
| 1865 | |
| 1866 | static void |
| 1867 | check_lface_attrs (Lisp_Object *attrs) |
| 1868 | { |
| 1869 | xassert (UNSPECIFIEDP (attrs[LFACE_FAMILY_INDEX]) |
| 1870 | || IGNORE_DEFFACE_P (attrs[LFACE_FAMILY_INDEX]) |
| 1871 | || STRINGP (attrs[LFACE_FAMILY_INDEX])); |
| 1872 | xassert (UNSPECIFIEDP (attrs[LFACE_FOUNDRY_INDEX]) |
| 1873 | || IGNORE_DEFFACE_P (attrs[LFACE_FOUNDRY_INDEX]) |
| 1874 | || STRINGP (attrs[LFACE_FOUNDRY_INDEX])); |
| 1875 | xassert (UNSPECIFIEDP (attrs[LFACE_SWIDTH_INDEX]) |
| 1876 | || IGNORE_DEFFACE_P (attrs[LFACE_SWIDTH_INDEX]) |
| 1877 | || SYMBOLP (attrs[LFACE_SWIDTH_INDEX])); |
| 1878 | xassert (UNSPECIFIEDP (attrs[LFACE_HEIGHT_INDEX]) |
| 1879 | || IGNORE_DEFFACE_P (attrs[LFACE_HEIGHT_INDEX]) |
| 1880 | || INTEGERP (attrs[LFACE_HEIGHT_INDEX]) |
| 1881 | || FLOATP (attrs[LFACE_HEIGHT_INDEX]) |
| 1882 | || FUNCTIONP (attrs[LFACE_HEIGHT_INDEX])); |
| 1883 | xassert (UNSPECIFIEDP (attrs[LFACE_WEIGHT_INDEX]) |
| 1884 | || IGNORE_DEFFACE_P (attrs[LFACE_WEIGHT_INDEX]) |
| 1885 | || SYMBOLP (attrs[LFACE_WEIGHT_INDEX])); |
| 1886 | xassert (UNSPECIFIEDP (attrs[LFACE_SLANT_INDEX]) |
| 1887 | || IGNORE_DEFFACE_P (attrs[LFACE_SLANT_INDEX]) |
| 1888 | || SYMBOLP (attrs[LFACE_SLANT_INDEX])); |
| 1889 | xassert (UNSPECIFIEDP (attrs[LFACE_UNDERLINE_INDEX]) |
| 1890 | || IGNORE_DEFFACE_P (attrs[LFACE_UNDERLINE_INDEX]) |
| 1891 | || SYMBOLP (attrs[LFACE_UNDERLINE_INDEX]) |
| 1892 | || STRINGP (attrs[LFACE_UNDERLINE_INDEX])); |
| 1893 | xassert (UNSPECIFIEDP (attrs[LFACE_OVERLINE_INDEX]) |
| 1894 | || IGNORE_DEFFACE_P (attrs[LFACE_OVERLINE_INDEX]) |
| 1895 | || SYMBOLP (attrs[LFACE_OVERLINE_INDEX]) |
| 1896 | || STRINGP (attrs[LFACE_OVERLINE_INDEX])); |
| 1897 | xassert (UNSPECIFIEDP (attrs[LFACE_STRIKE_THROUGH_INDEX]) |
| 1898 | || IGNORE_DEFFACE_P (attrs[LFACE_STRIKE_THROUGH_INDEX]) |
| 1899 | || SYMBOLP (attrs[LFACE_STRIKE_THROUGH_INDEX]) |
| 1900 | || STRINGP (attrs[LFACE_STRIKE_THROUGH_INDEX])); |
| 1901 | xassert (UNSPECIFIEDP (attrs[LFACE_BOX_INDEX]) |
| 1902 | || IGNORE_DEFFACE_P (attrs[LFACE_BOX_INDEX]) |
| 1903 | || SYMBOLP (attrs[LFACE_BOX_INDEX]) |
| 1904 | || STRINGP (attrs[LFACE_BOX_INDEX]) |
| 1905 | || INTEGERP (attrs[LFACE_BOX_INDEX]) |
| 1906 | || CONSP (attrs[LFACE_BOX_INDEX])); |
| 1907 | xassert (UNSPECIFIEDP (attrs[LFACE_INVERSE_INDEX]) |
| 1908 | || IGNORE_DEFFACE_P (attrs[LFACE_INVERSE_INDEX]) |
| 1909 | || SYMBOLP (attrs[LFACE_INVERSE_INDEX])); |
| 1910 | xassert (UNSPECIFIEDP (attrs[LFACE_FOREGROUND_INDEX]) |
| 1911 | || IGNORE_DEFFACE_P (attrs[LFACE_FOREGROUND_INDEX]) |
| 1912 | || STRINGP (attrs[LFACE_FOREGROUND_INDEX])); |
| 1913 | xassert (UNSPECIFIEDP (attrs[LFACE_BACKGROUND_INDEX]) |
| 1914 | || IGNORE_DEFFACE_P (attrs[LFACE_BACKGROUND_INDEX]) |
| 1915 | || STRINGP (attrs[LFACE_BACKGROUND_INDEX])); |
| 1916 | xassert (UNSPECIFIEDP (attrs[LFACE_INHERIT_INDEX]) |
| 1917 | || IGNORE_DEFFACE_P (attrs[LFACE_INHERIT_INDEX]) |
| 1918 | || NILP (attrs[LFACE_INHERIT_INDEX]) |
| 1919 | || SYMBOLP (attrs[LFACE_INHERIT_INDEX]) |
| 1920 | || CONSP (attrs[LFACE_INHERIT_INDEX])); |
| 1921 | #ifdef HAVE_WINDOW_SYSTEM |
| 1922 | xassert (UNSPECIFIEDP (attrs[LFACE_STIPPLE_INDEX]) |
| 1923 | || IGNORE_DEFFACE_P (attrs[LFACE_STIPPLE_INDEX]) |
| 1924 | || SYMBOLP (attrs[LFACE_STIPPLE_INDEX]) |
| 1925 | || !NILP (Fbitmap_spec_p (attrs[LFACE_STIPPLE_INDEX]))); |
| 1926 | xassert (UNSPECIFIEDP (attrs[LFACE_FONT_INDEX]) |
| 1927 | || IGNORE_DEFFACE_P (attrs[LFACE_FONT_INDEX]) |
| 1928 | || FONTP (attrs[LFACE_FONT_INDEX])); |
| 1929 | xassert (UNSPECIFIEDP (attrs[LFACE_FONTSET_INDEX]) |
| 1930 | || STRINGP (attrs[LFACE_FONTSET_INDEX]) |
| 1931 | || NILP (attrs[LFACE_FONTSET_INDEX])); |
| 1932 | #endif |
| 1933 | } |
| 1934 | |
| 1935 | |
| 1936 | /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */ |
| 1937 | |
| 1938 | static void |
| 1939 | check_lface (Lisp_Object lface) |
| 1940 | { |
| 1941 | if (!NILP (lface)) |
| 1942 | { |
| 1943 | xassert (LFACEP (lface)); |
| 1944 | check_lface_attrs (XVECTOR (lface)->contents); |
| 1945 | } |
| 1946 | } |
| 1947 | |
| 1948 | #else /* GLYPH_DEBUG == 0 */ |
| 1949 | |
| 1950 | #define check_lface_attrs(attrs) (void) 0 |
| 1951 | #define check_lface(lface) (void) 0 |
| 1952 | |
| 1953 | #endif /* GLYPH_DEBUG == 0 */ |
| 1954 | |
| 1955 | |
| 1956 | \f |
| 1957 | /* Face-merge cycle checking. */ |
| 1958 | |
| 1959 | enum named_merge_point_kind |
| 1960 | { |
| 1961 | NAMED_MERGE_POINT_NORMAL, |
| 1962 | NAMED_MERGE_POINT_REMAP |
| 1963 | }; |
| 1964 | |
| 1965 | /* A `named merge point' is simply a point during face-merging where we |
| 1966 | look up a face by name. We keep a stack of which named lookups we're |
| 1967 | currently processing so that we can easily detect cycles, using a |
| 1968 | linked- list of struct named_merge_point structures, typically |
| 1969 | allocated on the stack frame of the named lookup functions which are |
| 1970 | active (so no consing is required). */ |
| 1971 | struct named_merge_point |
| 1972 | { |
| 1973 | Lisp_Object face_name; |
| 1974 | enum named_merge_point_kind named_merge_point_kind; |
| 1975 | struct named_merge_point *prev; |
| 1976 | }; |
| 1977 | |
| 1978 | |
| 1979 | /* If a face merging cycle is detected for FACE_NAME, return 0, |
| 1980 | otherwise add NEW_NAMED_MERGE_POINT, which is initialized using |
| 1981 | FACE_NAME and NAMED_MERGE_POINT_KIND, as the head of the linked list |
| 1982 | pointed to by NAMED_MERGE_POINTS, and return 1. */ |
| 1983 | |
| 1984 | static inline int |
| 1985 | push_named_merge_point (struct named_merge_point *new_named_merge_point, |
| 1986 | Lisp_Object face_name, |
| 1987 | enum named_merge_point_kind named_merge_point_kind, |
| 1988 | struct named_merge_point **named_merge_points) |
| 1989 | { |
| 1990 | struct named_merge_point *prev; |
| 1991 | |
| 1992 | for (prev = *named_merge_points; prev; prev = prev->prev) |
| 1993 | if (EQ (face_name, prev->face_name)) |
| 1994 | { |
| 1995 | if (prev->named_merge_point_kind == named_merge_point_kind) |
| 1996 | /* A cycle, so fail. */ |
| 1997 | return 0; |
| 1998 | else if (prev->named_merge_point_kind == NAMED_MERGE_POINT_REMAP) |
| 1999 | /* A remap `hides ' any previous normal merge points |
| 2000 | (because the remap means that it's actually different face), |
| 2001 | so as we know the current merge point must be normal, we |
| 2002 | can just assume it's OK. */ |
| 2003 | break; |
| 2004 | } |
| 2005 | |
| 2006 | new_named_merge_point->face_name = face_name; |
| 2007 | new_named_merge_point->named_merge_point_kind = named_merge_point_kind; |
| 2008 | new_named_merge_point->prev = *named_merge_points; |
| 2009 | |
| 2010 | *named_merge_points = new_named_merge_point; |
| 2011 | |
| 2012 | return 1; |
| 2013 | } |
| 2014 | |
| 2015 | \f |
| 2016 | /* Resolve face name FACE_NAME. If FACE_NAME is a string, intern it |
| 2017 | to make it a symbol. If FACE_NAME is an alias for another face, |
| 2018 | return that face's name. |
| 2019 | |
| 2020 | Return default face in case of errors. */ |
| 2021 | |
| 2022 | static Lisp_Object |
| 2023 | resolve_face_name (Lisp_Object face_name, int signal_p) |
| 2024 | { |
| 2025 | Lisp_Object orig_face; |
| 2026 | Lisp_Object tortoise, hare; |
| 2027 | |
| 2028 | if (STRINGP (face_name)) |
| 2029 | face_name = intern (SSDATA (face_name)); |
| 2030 | |
| 2031 | if (NILP (face_name) || !SYMBOLP (face_name)) |
| 2032 | return face_name; |
| 2033 | |
| 2034 | orig_face = face_name; |
| 2035 | tortoise = hare = face_name; |
| 2036 | |
| 2037 | while (1) |
| 2038 | { |
| 2039 | face_name = hare; |
| 2040 | hare = Fget (hare, Qface_alias); |
| 2041 | if (NILP (hare) || !SYMBOLP (hare)) |
| 2042 | break; |
| 2043 | |
| 2044 | face_name = hare; |
| 2045 | hare = Fget (hare, Qface_alias); |
| 2046 | if (NILP (hare) || !SYMBOLP (hare)) |
| 2047 | break; |
| 2048 | |
| 2049 | tortoise = Fget (tortoise, Qface_alias); |
| 2050 | if (EQ (hare, tortoise)) |
| 2051 | { |
| 2052 | if (signal_p) |
| 2053 | xsignal1 (Qcircular_list, orig_face); |
| 2054 | return Qdefault; |
| 2055 | } |
| 2056 | } |
| 2057 | |
| 2058 | return face_name; |
| 2059 | } |
| 2060 | |
| 2061 | |
| 2062 | /* Return the face definition of FACE_NAME on frame F. F null means |
| 2063 | return the definition for new frames. FACE_NAME may be a string or |
| 2064 | a symbol (apparently Emacs 20.2 allowed strings as face names in |
| 2065 | face text properties; Ediff uses that). If SIGNAL_P is non-zero, |
| 2066 | signal an error if FACE_NAME is not a valid face name. If SIGNAL_P |
| 2067 | is zero, value is nil if FACE_NAME is not a valid face name. */ |
| 2068 | static inline Lisp_Object |
| 2069 | lface_from_face_name_no_resolve (struct frame *f, Lisp_Object face_name, |
| 2070 | int signal_p) |
| 2071 | { |
| 2072 | Lisp_Object lface; |
| 2073 | |
| 2074 | if (f) |
| 2075 | lface = assq_no_quit (face_name, f->face_alist); |
| 2076 | else |
| 2077 | lface = assq_no_quit (face_name, Vface_new_frame_defaults); |
| 2078 | |
| 2079 | if (CONSP (lface)) |
| 2080 | lface = XCDR (lface); |
| 2081 | else if (signal_p) |
| 2082 | signal_error ("Invalid face", face_name); |
| 2083 | |
| 2084 | check_lface (lface); |
| 2085 | |
| 2086 | return lface; |
| 2087 | } |
| 2088 | |
| 2089 | /* Return the face definition of FACE_NAME on frame F. F null means |
| 2090 | return the definition for new frames. FACE_NAME may be a string or |
| 2091 | a symbol (apparently Emacs 20.2 allowed strings as face names in |
| 2092 | face text properties; Ediff uses that). If FACE_NAME is an alias |
| 2093 | for another face, return that face's definition. If SIGNAL_P is |
| 2094 | non-zero, signal an error if FACE_NAME is not a valid face name. |
| 2095 | If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face |
| 2096 | name. */ |
| 2097 | static inline Lisp_Object |
| 2098 | lface_from_face_name (struct frame *f, Lisp_Object face_name, int signal_p) |
| 2099 | { |
| 2100 | face_name = resolve_face_name (face_name, signal_p); |
| 2101 | return lface_from_face_name_no_resolve (f, face_name, signal_p); |
| 2102 | } |
| 2103 | |
| 2104 | |
| 2105 | /* Get face attributes of face FACE_NAME from frame-local faces on |
| 2106 | frame F. Store the resulting attributes in ATTRS which must point |
| 2107 | to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P |
| 2108 | is non-zero, signal an error if FACE_NAME does not name a face. |
| 2109 | Otherwise, value is zero if FACE_NAME is not a face. */ |
| 2110 | |
| 2111 | static inline int |
| 2112 | get_lface_attributes_no_remap (struct frame *f, Lisp_Object face_name, |
| 2113 | Lisp_Object *attrs, int signal_p) |
| 2114 | { |
| 2115 | Lisp_Object lface; |
| 2116 | |
| 2117 | lface = lface_from_face_name_no_resolve (f, face_name, signal_p); |
| 2118 | |
| 2119 | if (! NILP (lface)) |
| 2120 | memcpy (attrs, XVECTOR (lface)->contents, |
| 2121 | LFACE_VECTOR_SIZE * sizeof *attrs); |
| 2122 | |
| 2123 | return !NILP (lface); |
| 2124 | } |
| 2125 | |
| 2126 | /* Get face attributes of face FACE_NAME from frame-local faces on frame |
| 2127 | F. Store the resulting attributes in ATTRS which must point to a |
| 2128 | vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If FACE_NAME is an |
| 2129 | alias for another face, use that face's definition. If SIGNAL_P is |
| 2130 | non-zero, signal an error if FACE_NAME does not name a face. |
| 2131 | Otherwise, value is zero if FACE_NAME is not a face. */ |
| 2132 | |
| 2133 | static inline int |
| 2134 | get_lface_attributes (struct frame *f, Lisp_Object face_name, |
| 2135 | Lisp_Object *attrs, int signal_p, |
| 2136 | struct named_merge_point *named_merge_points) |
| 2137 | { |
| 2138 | Lisp_Object face_remapping; |
| 2139 | |
| 2140 | face_name = resolve_face_name (face_name, signal_p); |
| 2141 | |
| 2142 | /* See if SYMBOL has been remapped to some other face (usually this |
| 2143 | is done buffer-locally). */ |
| 2144 | face_remapping = assq_no_quit (face_name, Vface_remapping_alist); |
| 2145 | if (CONSP (face_remapping)) |
| 2146 | { |
| 2147 | struct named_merge_point named_merge_point; |
| 2148 | |
| 2149 | if (push_named_merge_point (&named_merge_point, |
| 2150 | face_name, NAMED_MERGE_POINT_REMAP, |
| 2151 | &named_merge_points)) |
| 2152 | { |
| 2153 | int i; |
| 2154 | |
| 2155 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) |
| 2156 | attrs[i] = Qunspecified; |
| 2157 | |
| 2158 | return merge_face_ref (f, XCDR (face_remapping), attrs, |
| 2159 | signal_p, named_merge_points); |
| 2160 | } |
| 2161 | } |
| 2162 | |
| 2163 | /* Default case, no remapping. */ |
| 2164 | return get_lface_attributes_no_remap (f, face_name, attrs, signal_p); |
| 2165 | } |
| 2166 | |
| 2167 | |
| 2168 | /* Non-zero if all attributes in face attribute vector ATTRS are |
| 2169 | specified, i.e. are non-nil. */ |
| 2170 | |
| 2171 | static int |
| 2172 | lface_fully_specified_p (Lisp_Object *attrs) |
| 2173 | { |
| 2174 | int i; |
| 2175 | |
| 2176 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) |
| 2177 | if (i != LFACE_FONT_INDEX && i != LFACE_INHERIT_INDEX) |
| 2178 | if ((UNSPECIFIEDP (attrs[i]) || IGNORE_DEFFACE_P (attrs[i]))) |
| 2179 | break; |
| 2180 | |
| 2181 | return i == LFACE_VECTOR_SIZE; |
| 2182 | } |
| 2183 | |
| 2184 | #ifdef HAVE_WINDOW_SYSTEM |
| 2185 | |
| 2186 | /* Set font-related attributes of Lisp face LFACE from FONT-OBJECT. |
| 2187 | If FORCE_P is zero, set only unspecified attributes of LFACE. The |
| 2188 | exception is `font' attribute. It is set to FONT_OBJECT regardless |
| 2189 | of FORCE_P. */ |
| 2190 | |
| 2191 | static int |
| 2192 | set_lface_from_font (struct frame *f, Lisp_Object lface, |
| 2193 | Lisp_Object font_object, int force_p) |
| 2194 | { |
| 2195 | Lisp_Object val; |
| 2196 | struct font *font = XFONT_OBJECT (font_object); |
| 2197 | |
| 2198 | /* Set attributes only if unspecified, otherwise face defaults for |
| 2199 | new frames would never take effect. If the font doesn't have a |
| 2200 | specific property, set a normal value for that. */ |
| 2201 | |
| 2202 | if (force_p || UNSPECIFIEDP (LFACE_FAMILY (lface))) |
| 2203 | { |
| 2204 | Lisp_Object family = AREF (font_object, FONT_FAMILY_INDEX); |
| 2205 | |
| 2206 | LFACE_FAMILY (lface) = SYMBOL_NAME (family); |
| 2207 | } |
| 2208 | |
| 2209 | if (force_p || UNSPECIFIEDP (LFACE_FOUNDRY (lface))) |
| 2210 | { |
| 2211 | Lisp_Object foundry = AREF (font_object, FONT_FOUNDRY_INDEX); |
| 2212 | |
| 2213 | LFACE_FOUNDRY (lface) = SYMBOL_NAME (foundry); |
| 2214 | } |
| 2215 | |
| 2216 | if (force_p || UNSPECIFIEDP (LFACE_HEIGHT (lface))) |
| 2217 | { |
| 2218 | int pt = PIXEL_TO_POINT (font->pixel_size * 10, f->resy); |
| 2219 | |
| 2220 | xassert (pt > 0); |
| 2221 | LFACE_HEIGHT (lface) = make_number (pt); |
| 2222 | } |
| 2223 | |
| 2224 | if (force_p || UNSPECIFIEDP (LFACE_WEIGHT (lface))) |
| 2225 | { |
| 2226 | val = FONT_WEIGHT_FOR_FACE (font_object); |
| 2227 | LFACE_WEIGHT (lface) = ! NILP (val) ? val :Qnormal; |
| 2228 | } |
| 2229 | if (force_p || UNSPECIFIEDP (LFACE_SLANT (lface))) |
| 2230 | { |
| 2231 | val = FONT_SLANT_FOR_FACE (font_object); |
| 2232 | LFACE_SLANT (lface) = ! NILP (val) ? val : Qnormal; |
| 2233 | } |
| 2234 | if (force_p || UNSPECIFIEDP (LFACE_SWIDTH (lface))) |
| 2235 | { |
| 2236 | val = FONT_WIDTH_FOR_FACE (font_object); |
| 2237 | LFACE_SWIDTH (lface) = ! NILP (val) ? val : Qnormal; |
| 2238 | } |
| 2239 | |
| 2240 | LFACE_FONT (lface) = font_object; |
| 2241 | return 1; |
| 2242 | } |
| 2243 | |
| 2244 | #endif /* HAVE_WINDOW_SYSTEM */ |
| 2245 | |
| 2246 | |
| 2247 | /* Merges the face height FROM with the face height TO, and returns the |
| 2248 | merged height. If FROM is an invalid height, then INVALID is |
| 2249 | returned instead. FROM and TO may be either absolute face heights or |
| 2250 | `relative' heights; the returned value is always an absolute height |
| 2251 | unless both FROM and TO are relative. */ |
| 2252 | |
| 2253 | static Lisp_Object |
| 2254 | merge_face_heights (Lisp_Object from, Lisp_Object to, Lisp_Object invalid) |
| 2255 | { |
| 2256 | Lisp_Object result = invalid; |
| 2257 | |
| 2258 | if (INTEGERP (from)) |
| 2259 | /* FROM is absolute, just use it as is. */ |
| 2260 | result = from; |
| 2261 | else if (FLOATP (from)) |
| 2262 | /* FROM is a scale, use it to adjust TO. */ |
| 2263 | { |
| 2264 | if (INTEGERP (to)) |
| 2265 | /* relative X absolute => absolute */ |
| 2266 | result = make_number ((EMACS_INT)(XFLOAT_DATA (from) * XINT (to))); |
| 2267 | else if (FLOATP (to)) |
| 2268 | /* relative X relative => relative */ |
| 2269 | result = make_float (XFLOAT_DATA (from) * XFLOAT_DATA (to)); |
| 2270 | else if (UNSPECIFIEDP (to)) |
| 2271 | result = from; |
| 2272 | } |
| 2273 | else if (FUNCTIONP (from)) |
| 2274 | /* FROM is a function, which use to adjust TO. */ |
| 2275 | { |
| 2276 | /* Call function with current height as argument. |
| 2277 | From is the new height. */ |
| 2278 | Lisp_Object args[2]; |
| 2279 | |
| 2280 | args[0] = from; |
| 2281 | args[1] = to; |
| 2282 | result = safe_call (2, args); |
| 2283 | |
| 2284 | /* Ensure that if TO was absolute, so is the result. */ |
| 2285 | if (INTEGERP (to) && !INTEGERP (result)) |
| 2286 | result = invalid; |
| 2287 | } |
| 2288 | |
| 2289 | return result; |
| 2290 | } |
| 2291 | |
| 2292 | |
| 2293 | /* Merge two Lisp face attribute vectors on frame F, FROM and TO, and |
| 2294 | store the resulting attributes in TO, which must be already be |
| 2295 | completely specified and contain only absolute attributes. Every |
| 2296 | specified attribute of FROM overrides the corresponding attribute of |
| 2297 | TO; relative attributes in FROM are merged with the absolute value in |
| 2298 | TO and replace it. NAMED_MERGE_POINTS is used internally to detect |
| 2299 | loops in face inheritance/remapping; it should be 0 when called from |
| 2300 | other places. */ |
| 2301 | |
| 2302 | static inline void |
| 2303 | merge_face_vectors (struct frame *f, Lisp_Object *from, Lisp_Object *to, |
| 2304 | struct named_merge_point *named_merge_points) |
| 2305 | { |
| 2306 | int i; |
| 2307 | |
| 2308 | /* If FROM inherits from some other faces, merge their attributes into |
| 2309 | TO before merging FROM's direct attributes. Note that an :inherit |
| 2310 | attribute of `unspecified' is the same as one of nil; we never |
| 2311 | merge :inherit attributes, so nil is more correct, but lots of |
| 2312 | other code uses `unspecified' as a generic value for face attributes. */ |
| 2313 | if (!UNSPECIFIEDP (from[LFACE_INHERIT_INDEX]) |
| 2314 | && !NILP (from[LFACE_INHERIT_INDEX])) |
| 2315 | merge_face_ref (f, from[LFACE_INHERIT_INDEX], to, 0, named_merge_points); |
| 2316 | |
| 2317 | i = LFACE_FONT_INDEX; |
| 2318 | if (!UNSPECIFIEDP (from[i])) |
| 2319 | { |
| 2320 | if (!UNSPECIFIEDP (to[i])) |
| 2321 | to[i] = merge_font_spec (from[i], to[i]); |
| 2322 | else |
| 2323 | to[i] = copy_font_spec (from[i]); |
| 2324 | if (! NILP (AREF (to[i], FONT_FOUNDRY_INDEX))) |
| 2325 | to[LFACE_FOUNDRY_INDEX] = SYMBOL_NAME (AREF (to[i], FONT_FOUNDRY_INDEX)); |
| 2326 | if (! NILP (AREF (to[i], FONT_FAMILY_INDEX))) |
| 2327 | to[LFACE_FAMILY_INDEX] = SYMBOL_NAME (AREF (to[i], FONT_FAMILY_INDEX)); |
| 2328 | if (! NILP (AREF (to[i], FONT_WEIGHT_INDEX))) |
| 2329 | to[LFACE_WEIGHT_INDEX] = FONT_WEIGHT_FOR_FACE (to[i]); |
| 2330 | if (! NILP (AREF (to[i], FONT_SLANT_INDEX))) |
| 2331 | to[LFACE_SLANT_INDEX] = FONT_SLANT_FOR_FACE (to[i]); |
| 2332 | if (! NILP (AREF (to[i], FONT_WIDTH_INDEX))) |
| 2333 | to[LFACE_SWIDTH_INDEX] = FONT_WIDTH_FOR_FACE (to[i]); |
| 2334 | ASET (to[i], FONT_SIZE_INDEX, Qnil); |
| 2335 | } |
| 2336 | |
| 2337 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) |
| 2338 | if (!UNSPECIFIEDP (from[i])) |
| 2339 | { |
| 2340 | if (i == LFACE_HEIGHT_INDEX && !INTEGERP (from[i])) |
| 2341 | { |
| 2342 | to[i] = merge_face_heights (from[i], to[i], to[i]); |
| 2343 | font_clear_prop (to, FONT_SIZE_INDEX); |
| 2344 | } |
| 2345 | else if (i != LFACE_FONT_INDEX |
| 2346 | && ! EQ (to[i], from[i])) |
| 2347 | { |
| 2348 | to[i] = from[i]; |
| 2349 | if (i >= LFACE_FAMILY_INDEX && i <=LFACE_SLANT_INDEX) |
| 2350 | font_clear_prop (to, |
| 2351 | (i == LFACE_FAMILY_INDEX ? FONT_FAMILY_INDEX |
| 2352 | : i == LFACE_FOUNDRY_INDEX ? FONT_FOUNDRY_INDEX |
| 2353 | : i == LFACE_SWIDTH_INDEX ? FONT_WIDTH_INDEX |
| 2354 | : i == LFACE_HEIGHT_INDEX ? FONT_SIZE_INDEX |
| 2355 | : i == LFACE_WEIGHT_INDEX ? FONT_WEIGHT_INDEX |
| 2356 | : FONT_SLANT_INDEX)); |
| 2357 | } |
| 2358 | } |
| 2359 | |
| 2360 | /* TO is always an absolute face, which should inherit from nothing. |
| 2361 | We blindly copy the :inherit attribute above and fix it up here. */ |
| 2362 | to[LFACE_INHERIT_INDEX] = Qnil; |
| 2363 | } |
| 2364 | |
| 2365 | /* Merge the named face FACE_NAME on frame F, into the vector of face |
| 2366 | attributes TO. NAMED_MERGE_POINTS is used to detect loops in face |
| 2367 | inheritance. Returns true if FACE_NAME is a valid face name and |
| 2368 | merging succeeded. */ |
| 2369 | |
| 2370 | static int |
| 2371 | merge_named_face (struct frame *f, Lisp_Object face_name, Lisp_Object *to, |
| 2372 | struct named_merge_point *named_merge_points) |
| 2373 | { |
| 2374 | struct named_merge_point named_merge_point; |
| 2375 | |
| 2376 | if (push_named_merge_point (&named_merge_point, |
| 2377 | face_name, NAMED_MERGE_POINT_NORMAL, |
| 2378 | &named_merge_points)) |
| 2379 | { |
| 2380 | struct gcpro gcpro1; |
| 2381 | Lisp_Object from[LFACE_VECTOR_SIZE]; |
| 2382 | int ok = get_lface_attributes (f, face_name, from, 0, named_merge_points); |
| 2383 | |
| 2384 | if (ok) |
| 2385 | { |
| 2386 | GCPRO1 (named_merge_point.face_name); |
| 2387 | merge_face_vectors (f, from, to, named_merge_points); |
| 2388 | UNGCPRO; |
| 2389 | } |
| 2390 | |
| 2391 | return ok; |
| 2392 | } |
| 2393 | else |
| 2394 | return 0; |
| 2395 | } |
| 2396 | |
| 2397 | |
| 2398 | /* Merge face attributes from the lisp `face reference' FACE_REF on |
| 2399 | frame F into the face attribute vector TO. If ERR_MSGS is non-zero, |
| 2400 | problems with FACE_REF cause an error message to be shown. Return |
| 2401 | non-zero if no errors occurred (regardless of the value of ERR_MSGS). |
| 2402 | NAMED_MERGE_POINTS is used to detect loops in face inheritance or |
| 2403 | list structure; it may be 0 for most callers. |
| 2404 | |
| 2405 | FACE_REF may be a single face specification or a list of such |
| 2406 | specifications. Each face specification can be: |
| 2407 | |
| 2408 | 1. A symbol or string naming a Lisp face. |
| 2409 | |
| 2410 | 2. A property list of the form (KEYWORD VALUE ...) where each |
| 2411 | KEYWORD is a face attribute name, and value is an appropriate value |
| 2412 | for that attribute. |
| 2413 | |
| 2414 | 3. Conses or the form (FOREGROUND-COLOR . COLOR) or |
| 2415 | (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is |
| 2416 | for compatibility with 20.2. |
| 2417 | |
| 2418 | Face specifications earlier in lists take precedence over later |
| 2419 | specifications. */ |
| 2420 | |
| 2421 | static int |
| 2422 | merge_face_ref (struct frame *f, Lisp_Object face_ref, Lisp_Object *to, |
| 2423 | int err_msgs, struct named_merge_point *named_merge_points) |
| 2424 | { |
| 2425 | int ok = 1; /* Succeed without an error? */ |
| 2426 | |
| 2427 | if (CONSP (face_ref)) |
| 2428 | { |
| 2429 | Lisp_Object first = XCAR (face_ref); |
| 2430 | |
| 2431 | if (EQ (first, Qforeground_color) |
| 2432 | || EQ (first, Qbackground_color)) |
| 2433 | { |
| 2434 | /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR |
| 2435 | . COLOR). COLOR must be a string. */ |
| 2436 | Lisp_Object color_name = XCDR (face_ref); |
| 2437 | Lisp_Object color = first; |
| 2438 | |
| 2439 | if (STRINGP (color_name)) |
| 2440 | { |
| 2441 | if (EQ (color, Qforeground_color)) |
| 2442 | to[LFACE_FOREGROUND_INDEX] = color_name; |
| 2443 | else |
| 2444 | to[LFACE_BACKGROUND_INDEX] = color_name; |
| 2445 | } |
| 2446 | else |
| 2447 | { |
| 2448 | if (err_msgs) |
| 2449 | add_to_log ("Invalid face color", color_name, Qnil); |
| 2450 | ok = 0; |
| 2451 | } |
| 2452 | } |
| 2453 | else if (SYMBOLP (first) |
| 2454 | && *SDATA (SYMBOL_NAME (first)) == ':') |
| 2455 | { |
| 2456 | /* Assume this is the property list form. */ |
| 2457 | while (CONSP (face_ref) && CONSP (XCDR (face_ref))) |
| 2458 | { |
| 2459 | Lisp_Object keyword = XCAR (face_ref); |
| 2460 | Lisp_Object value = XCAR (XCDR (face_ref)); |
| 2461 | int err = 0; |
| 2462 | |
| 2463 | /* Specifying `unspecified' is a no-op. */ |
| 2464 | if (EQ (value, Qunspecified)) |
| 2465 | ; |
| 2466 | else if (EQ (keyword, QCfamily)) |
| 2467 | { |
| 2468 | if (STRINGP (value)) |
| 2469 | { |
| 2470 | to[LFACE_FAMILY_INDEX] = value; |
| 2471 | font_clear_prop (to, FONT_FAMILY_INDEX); |
| 2472 | } |
| 2473 | else |
| 2474 | err = 1; |
| 2475 | } |
| 2476 | else if (EQ (keyword, QCfoundry)) |
| 2477 | { |
| 2478 | if (STRINGP (value)) |
| 2479 | { |
| 2480 | to[LFACE_FOUNDRY_INDEX] = value; |
| 2481 | font_clear_prop (to, FONT_FOUNDRY_INDEX); |
| 2482 | } |
| 2483 | else |
| 2484 | err = 1; |
| 2485 | } |
| 2486 | else if (EQ (keyword, QCheight)) |
| 2487 | { |
| 2488 | Lisp_Object new_height = |
| 2489 | merge_face_heights (value, to[LFACE_HEIGHT_INDEX], Qnil); |
| 2490 | |
| 2491 | if (! NILP (new_height)) |
| 2492 | { |
| 2493 | to[LFACE_HEIGHT_INDEX] = new_height; |
| 2494 | font_clear_prop (to, FONT_SIZE_INDEX); |
| 2495 | } |
| 2496 | else |
| 2497 | err = 1; |
| 2498 | } |
| 2499 | else if (EQ (keyword, QCweight)) |
| 2500 | { |
| 2501 | if (SYMBOLP (value) && FONT_WEIGHT_NAME_NUMERIC (value) >= 0) |
| 2502 | { |
| 2503 | to[LFACE_WEIGHT_INDEX] = value; |
| 2504 | font_clear_prop (to, FONT_WEIGHT_INDEX); |
| 2505 | } |
| 2506 | else |
| 2507 | err = 1; |
| 2508 | } |
| 2509 | else if (EQ (keyword, QCslant)) |
| 2510 | { |
| 2511 | if (SYMBOLP (value) && FONT_SLANT_NAME_NUMERIC (value) >= 0) |
| 2512 | { |
| 2513 | to[LFACE_SLANT_INDEX] = value; |
| 2514 | font_clear_prop (to, FONT_SLANT_INDEX); |
| 2515 | } |
| 2516 | else |
| 2517 | err = 1; |
| 2518 | } |
| 2519 | else if (EQ (keyword, QCunderline)) |
| 2520 | { |
| 2521 | if (EQ (value, Qt) |
| 2522 | || NILP (value) |
| 2523 | || STRINGP (value)) |
| 2524 | to[LFACE_UNDERLINE_INDEX] = value; |
| 2525 | else |
| 2526 | err = 1; |
| 2527 | } |
| 2528 | else if (EQ (keyword, QCoverline)) |
| 2529 | { |
| 2530 | if (EQ (value, Qt) |
| 2531 | || NILP (value) |
| 2532 | || STRINGP (value)) |
| 2533 | to[LFACE_OVERLINE_INDEX] = value; |
| 2534 | else |
| 2535 | err = 1; |
| 2536 | } |
| 2537 | else if (EQ (keyword, QCstrike_through)) |
| 2538 | { |
| 2539 | if (EQ (value, Qt) |
| 2540 | || NILP (value) |
| 2541 | || STRINGP (value)) |
| 2542 | to[LFACE_STRIKE_THROUGH_INDEX] = value; |
| 2543 | else |
| 2544 | err = 1; |
| 2545 | } |
| 2546 | else if (EQ (keyword, QCbox)) |
| 2547 | { |
| 2548 | if (EQ (value, Qt)) |
| 2549 | value = make_number (1); |
| 2550 | if (INTEGERP (value) |
| 2551 | || STRINGP (value) |
| 2552 | || CONSP (value) |
| 2553 | || NILP (value)) |
| 2554 | to[LFACE_BOX_INDEX] = value; |
| 2555 | else |
| 2556 | err = 1; |
| 2557 | } |
| 2558 | else if (EQ (keyword, QCinverse_video) |
| 2559 | || EQ (keyword, QCreverse_video)) |
| 2560 | { |
| 2561 | if (EQ (value, Qt) || NILP (value)) |
| 2562 | to[LFACE_INVERSE_INDEX] = value; |
| 2563 | else |
| 2564 | err = 1; |
| 2565 | } |
| 2566 | else if (EQ (keyword, QCforeground)) |
| 2567 | { |
| 2568 | if (STRINGP (value)) |
| 2569 | to[LFACE_FOREGROUND_INDEX] = value; |
| 2570 | else |
| 2571 | err = 1; |
| 2572 | } |
| 2573 | else if (EQ (keyword, QCbackground)) |
| 2574 | { |
| 2575 | if (STRINGP (value)) |
| 2576 | to[LFACE_BACKGROUND_INDEX] = value; |
| 2577 | else |
| 2578 | err = 1; |
| 2579 | } |
| 2580 | else if (EQ (keyword, QCstipple)) |
| 2581 | { |
| 2582 | #if defined (HAVE_X_WINDOWS) || defined (HAVE_NS) |
| 2583 | Lisp_Object pixmap_p = Fbitmap_spec_p (value); |
| 2584 | if (!NILP (pixmap_p)) |
| 2585 | to[LFACE_STIPPLE_INDEX] = value; |
| 2586 | else |
| 2587 | err = 1; |
| 2588 | #endif |
| 2589 | } |
| 2590 | else if (EQ (keyword, QCwidth)) |
| 2591 | { |
| 2592 | if (SYMBOLP (value) && FONT_WIDTH_NAME_NUMERIC (value) >= 0) |
| 2593 | { |
| 2594 | to[LFACE_SWIDTH_INDEX] = value; |
| 2595 | font_clear_prop (to, FONT_WIDTH_INDEX); |
| 2596 | } |
| 2597 | else |
| 2598 | err = 1; |
| 2599 | } |
| 2600 | else if (EQ (keyword, QCinherit)) |
| 2601 | { |
| 2602 | /* This is not really very useful; it's just like a |
| 2603 | normal face reference. */ |
| 2604 | if (! merge_face_ref (f, value, to, |
| 2605 | err_msgs, named_merge_points)) |
| 2606 | err = 1; |
| 2607 | } |
| 2608 | else |
| 2609 | err = 1; |
| 2610 | |
| 2611 | if (err) |
| 2612 | { |
| 2613 | add_to_log ("Invalid face attribute %S %S", keyword, value); |
| 2614 | ok = 0; |
| 2615 | } |
| 2616 | |
| 2617 | face_ref = XCDR (XCDR (face_ref)); |
| 2618 | } |
| 2619 | } |
| 2620 | else |
| 2621 | { |
| 2622 | /* This is a list of face refs. Those at the beginning of the |
| 2623 | list take precedence over what follows, so we have to merge |
| 2624 | from the end backwards. */ |
| 2625 | Lisp_Object next = XCDR (face_ref); |
| 2626 | |
| 2627 | if (! NILP (next)) |
| 2628 | ok = merge_face_ref (f, next, to, err_msgs, named_merge_points); |
| 2629 | |
| 2630 | if (! merge_face_ref (f, first, to, err_msgs, named_merge_points)) |
| 2631 | ok = 0; |
| 2632 | } |
| 2633 | } |
| 2634 | else |
| 2635 | { |
| 2636 | /* FACE_REF ought to be a face name. */ |
| 2637 | ok = merge_named_face (f, face_ref, to, named_merge_points); |
| 2638 | if (!ok && err_msgs) |
| 2639 | add_to_log ("Invalid face reference: %s", face_ref, Qnil); |
| 2640 | } |
| 2641 | |
| 2642 | return ok; |
| 2643 | } |
| 2644 | |
| 2645 | |
| 2646 | DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face, |
| 2647 | Sinternal_make_lisp_face, 1, 2, 0, |
| 2648 | doc: /* Make FACE, a symbol, a Lisp face with all attributes nil. |
| 2649 | If FACE was not known as a face before, create a new one. |
| 2650 | If optional argument FRAME is specified, make a frame-local face |
| 2651 | for that frame. Otherwise operate on the global face definition. |
| 2652 | Value is a vector of face attributes. */) |
| 2653 | (Lisp_Object face, Lisp_Object frame) |
| 2654 | { |
| 2655 | Lisp_Object global_lface, lface; |
| 2656 | struct frame *f; |
| 2657 | int i; |
| 2658 | |
| 2659 | CHECK_SYMBOL (face); |
| 2660 | global_lface = lface_from_face_name (NULL, face, 0); |
| 2661 | |
| 2662 | if (!NILP (frame)) |
| 2663 | { |
| 2664 | CHECK_LIVE_FRAME (frame); |
| 2665 | f = XFRAME (frame); |
| 2666 | lface = lface_from_face_name (f, face, 0); |
| 2667 | } |
| 2668 | else |
| 2669 | f = NULL, lface = Qnil; |
| 2670 | |
| 2671 | /* Add a global definition if there is none. */ |
| 2672 | if (NILP (global_lface)) |
| 2673 | { |
| 2674 | global_lface = Fmake_vector (make_number (LFACE_VECTOR_SIZE), |
| 2675 | Qunspecified); |
| 2676 | ASET (global_lface, 0, Qface); |
| 2677 | Vface_new_frame_defaults = Fcons (Fcons (face, global_lface), |
| 2678 | Vface_new_frame_defaults); |
| 2679 | |
| 2680 | /* Assign the new Lisp face a unique ID. The mapping from Lisp |
| 2681 | face id to Lisp face is given by the vector lface_id_to_name. |
| 2682 | The mapping from Lisp face to Lisp face id is given by the |
| 2683 | property `face' of the Lisp face name. */ |
| 2684 | if (next_lface_id == lface_id_to_name_size) |
| 2685 | lface_id_to_name = |
| 2686 | xpalloc (lface_id_to_name, &lface_id_to_name_size, 1, |
| 2687 | min (INT_MAX, MOST_POSITIVE_FIXNUM), |
| 2688 | sizeof *lface_id_to_name); |
| 2689 | |
| 2690 | lface_id_to_name[next_lface_id] = face; |
| 2691 | Fput (face, Qface, make_number (next_lface_id)); |
| 2692 | ++next_lface_id; |
| 2693 | } |
| 2694 | else if (f == NULL) |
| 2695 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) |
| 2696 | ASET (global_lface, i, Qunspecified); |
| 2697 | |
| 2698 | /* Add a frame-local definition. */ |
| 2699 | if (f) |
| 2700 | { |
| 2701 | if (NILP (lface)) |
| 2702 | { |
| 2703 | lface = Fmake_vector (make_number (LFACE_VECTOR_SIZE), |
| 2704 | Qunspecified); |
| 2705 | ASET (lface, 0, Qface); |
| 2706 | f->face_alist = Fcons (Fcons (face, lface), f->face_alist); |
| 2707 | } |
| 2708 | else |
| 2709 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) |
| 2710 | ASET (lface, i, Qunspecified); |
| 2711 | } |
| 2712 | else |
| 2713 | lface = global_lface; |
| 2714 | |
| 2715 | /* Changing a named face means that all realized faces depending on |
| 2716 | that face are invalid. Since we cannot tell which realized faces |
| 2717 | depend on the face, make sure they are all removed. This is done |
| 2718 | by incrementing face_change_count. The next call to |
| 2719 | init_iterator will then free realized faces. */ |
| 2720 | if (NILP (Fget (face, Qface_no_inherit))) |
| 2721 | { |
| 2722 | ++face_change_count; |
| 2723 | ++windows_or_buffers_changed; |
| 2724 | } |
| 2725 | |
| 2726 | xassert (LFACEP (lface)); |
| 2727 | check_lface (lface); |
| 2728 | return lface; |
| 2729 | } |
| 2730 | |
| 2731 | |
| 2732 | DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p, |
| 2733 | Sinternal_lisp_face_p, 1, 2, 0, |
| 2734 | doc: /* Return non-nil if FACE names a face. |
| 2735 | FACE should be a symbol or string. |
| 2736 | If optional second argument FRAME is non-nil, check for the |
| 2737 | existence of a frame-local face with name FACE on that frame. |
| 2738 | Otherwise check for the existence of a global face. */) |
| 2739 | (Lisp_Object face, Lisp_Object frame) |
| 2740 | { |
| 2741 | Lisp_Object lface; |
| 2742 | |
| 2743 | face = resolve_face_name (face, 1); |
| 2744 | |
| 2745 | if (!NILP (frame)) |
| 2746 | { |
| 2747 | CHECK_LIVE_FRAME (frame); |
| 2748 | lface = lface_from_face_name (XFRAME (frame), face, 0); |
| 2749 | } |
| 2750 | else |
| 2751 | lface = lface_from_face_name (NULL, face, 0); |
| 2752 | |
| 2753 | return lface; |
| 2754 | } |
| 2755 | |
| 2756 | |
| 2757 | DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face, |
| 2758 | Sinternal_copy_lisp_face, 4, 4, 0, |
| 2759 | doc: /* Copy face FROM to TO. |
| 2760 | If FRAME is t, copy the global face definition of FROM. |
| 2761 | Otherwise, copy the frame-local definition of FROM on FRAME. |
| 2762 | If NEW-FRAME is a frame, copy that data into the frame-local |
| 2763 | definition of TO on NEW-FRAME. If NEW-FRAME is nil, |
| 2764 | FRAME controls where the data is copied to. |
| 2765 | |
| 2766 | The value is TO. */) |
| 2767 | (Lisp_Object from, Lisp_Object to, Lisp_Object frame, Lisp_Object new_frame) |
| 2768 | { |
| 2769 | Lisp_Object lface, copy; |
| 2770 | |
| 2771 | CHECK_SYMBOL (from); |
| 2772 | CHECK_SYMBOL (to); |
| 2773 | |
| 2774 | if (EQ (frame, Qt)) |
| 2775 | { |
| 2776 | /* Copy global definition of FROM. We don't make copies of |
| 2777 | strings etc. because 20.2 didn't do it either. */ |
| 2778 | lface = lface_from_face_name (NULL, from, 1); |
| 2779 | copy = Finternal_make_lisp_face (to, Qnil); |
| 2780 | } |
| 2781 | else |
| 2782 | { |
| 2783 | /* Copy frame-local definition of FROM. */ |
| 2784 | if (NILP (new_frame)) |
| 2785 | new_frame = frame; |
| 2786 | CHECK_LIVE_FRAME (frame); |
| 2787 | CHECK_LIVE_FRAME (new_frame); |
| 2788 | lface = lface_from_face_name (XFRAME (frame), from, 1); |
| 2789 | copy = Finternal_make_lisp_face (to, new_frame); |
| 2790 | } |
| 2791 | |
| 2792 | memcpy (XVECTOR (copy)->contents, XVECTOR (lface)->contents, |
| 2793 | LFACE_VECTOR_SIZE * sizeof (Lisp_Object)); |
| 2794 | |
| 2795 | /* Changing a named face means that all realized faces depending on |
| 2796 | that face are invalid. Since we cannot tell which realized faces |
| 2797 | depend on the face, make sure they are all removed. This is done |
| 2798 | by incrementing face_change_count. The next call to |
| 2799 | init_iterator will then free realized faces. */ |
| 2800 | if (NILP (Fget (to, Qface_no_inherit))) |
| 2801 | { |
| 2802 | ++face_change_count; |
| 2803 | ++windows_or_buffers_changed; |
| 2804 | } |
| 2805 | |
| 2806 | return to; |
| 2807 | } |
| 2808 | |
| 2809 | |
| 2810 | DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute, |
| 2811 | Sinternal_set_lisp_face_attribute, 3, 4, 0, |
| 2812 | doc: /* Set attribute ATTR of FACE to VALUE. |
| 2813 | FRAME being a frame means change the face on that frame. |
| 2814 | FRAME nil means change the face of the selected frame. |
| 2815 | FRAME t means change the default for new frames. |
| 2816 | FRAME 0 means change the face on all frames, and change the default |
| 2817 | for new frames. */) |
| 2818 | (Lisp_Object face, Lisp_Object attr, Lisp_Object value, Lisp_Object frame) |
| 2819 | { |
| 2820 | Lisp_Object lface; |
| 2821 | Lisp_Object old_value = Qnil; |
| 2822 | /* Set one of enum font_property_index (> 0) if ATTR is one of |
| 2823 | font-related attributes other than QCfont and QCfontset. */ |
| 2824 | enum font_property_index prop_index = 0; |
| 2825 | |
| 2826 | CHECK_SYMBOL (face); |
| 2827 | CHECK_SYMBOL (attr); |
| 2828 | |
| 2829 | face = resolve_face_name (face, 1); |
| 2830 | |
| 2831 | /* If FRAME is 0, change face on all frames, and change the |
| 2832 | default for new frames. */ |
| 2833 | if (INTEGERP (frame) && XINT (frame) == 0) |
| 2834 | { |
| 2835 | Lisp_Object tail; |
| 2836 | Finternal_set_lisp_face_attribute (face, attr, value, Qt); |
| 2837 | FOR_EACH_FRAME (tail, frame) |
| 2838 | Finternal_set_lisp_face_attribute (face, attr, value, frame); |
| 2839 | return face; |
| 2840 | } |
| 2841 | |
| 2842 | /* Set lface to the Lisp attribute vector of FACE. */ |
| 2843 | if (EQ (frame, Qt)) |
| 2844 | { |
| 2845 | lface = lface_from_face_name (NULL, face, 1); |
| 2846 | |
| 2847 | /* When updating face-new-frame-defaults, we put :ignore-defface |
| 2848 | where the caller wants `unspecified'. This forces the frame |
| 2849 | defaults to ignore the defface value. Otherwise, the defface |
| 2850 | will take effect, which is generally not what is intended. |
| 2851 | The value of that attribute will be inherited from some other |
| 2852 | face during face merging. See internal_merge_in_global_face. */ |
| 2853 | if (UNSPECIFIEDP (value)) |
| 2854 | value = QCignore_defface; |
| 2855 | } |
| 2856 | else |
| 2857 | { |
| 2858 | if (NILP (frame)) |
| 2859 | frame = selected_frame; |
| 2860 | |
| 2861 | CHECK_LIVE_FRAME (frame); |
| 2862 | lface = lface_from_face_name (XFRAME (frame), face, 0); |
| 2863 | |
| 2864 | /* If a frame-local face doesn't exist yet, create one. */ |
| 2865 | if (NILP (lface)) |
| 2866 | lface = Finternal_make_lisp_face (face, frame); |
| 2867 | } |
| 2868 | |
| 2869 | if (EQ (attr, QCfamily)) |
| 2870 | { |
| 2871 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
| 2872 | { |
| 2873 | CHECK_STRING (value); |
| 2874 | if (SCHARS (value) == 0) |
| 2875 | signal_error ("Invalid face family", value); |
| 2876 | } |
| 2877 | old_value = LFACE_FAMILY (lface); |
| 2878 | LFACE_FAMILY (lface) = value; |
| 2879 | prop_index = FONT_FAMILY_INDEX; |
| 2880 | } |
| 2881 | else if (EQ (attr, QCfoundry)) |
| 2882 | { |
| 2883 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
| 2884 | { |
| 2885 | CHECK_STRING (value); |
| 2886 | if (SCHARS (value) == 0) |
| 2887 | signal_error ("Invalid face foundry", value); |
| 2888 | } |
| 2889 | old_value = LFACE_FOUNDRY (lface); |
| 2890 | LFACE_FOUNDRY (lface) = value; |
| 2891 | prop_index = FONT_FOUNDRY_INDEX; |
| 2892 | } |
| 2893 | else if (EQ (attr, QCheight)) |
| 2894 | { |
| 2895 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
| 2896 | { |
| 2897 | if (EQ (face, Qdefault)) |
| 2898 | { |
| 2899 | /* The default face must have an absolute size. */ |
| 2900 | if (!INTEGERP (value) || XINT (value) <= 0) |
| 2901 | signal_error ("Default face height not absolute and positive", |
| 2902 | value); |
| 2903 | } |
| 2904 | else |
| 2905 | { |
| 2906 | /* For non-default faces, do a test merge with a random |
| 2907 | height to see if VALUE's ok. */ |
| 2908 | Lisp_Object test = merge_face_heights (value, |
| 2909 | make_number (10), |
| 2910 | Qnil); |
| 2911 | if (!INTEGERP (test) || XINT (test) <= 0) |
| 2912 | signal_error ("Face height does not produce a positive integer", |
| 2913 | value); |
| 2914 | } |
| 2915 | } |
| 2916 | |
| 2917 | old_value = LFACE_HEIGHT (lface); |
| 2918 | LFACE_HEIGHT (lface) = value; |
| 2919 | prop_index = FONT_SIZE_INDEX; |
| 2920 | } |
| 2921 | else if (EQ (attr, QCweight)) |
| 2922 | { |
| 2923 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
| 2924 | { |
| 2925 | CHECK_SYMBOL (value); |
| 2926 | if (FONT_WEIGHT_NAME_NUMERIC (value) < 0) |
| 2927 | signal_error ("Invalid face weight", value); |
| 2928 | } |
| 2929 | old_value = LFACE_WEIGHT (lface); |
| 2930 | LFACE_WEIGHT (lface) = value; |
| 2931 | prop_index = FONT_WEIGHT_INDEX; |
| 2932 | } |
| 2933 | else if (EQ (attr, QCslant)) |
| 2934 | { |
| 2935 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
| 2936 | { |
| 2937 | CHECK_SYMBOL (value); |
| 2938 | if (FONT_SLANT_NAME_NUMERIC (value) < 0) |
| 2939 | signal_error ("Invalid face slant", value); |
| 2940 | } |
| 2941 | old_value = LFACE_SLANT (lface); |
| 2942 | LFACE_SLANT (lface) = value; |
| 2943 | prop_index = FONT_SLANT_INDEX; |
| 2944 | } |
| 2945 | else if (EQ (attr, QCunderline)) |
| 2946 | { |
| 2947 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
| 2948 | if ((SYMBOLP (value) |
| 2949 | && !EQ (value, Qt) |
| 2950 | && !EQ (value, Qnil)) |
| 2951 | /* Underline color. */ |
| 2952 | || (STRINGP (value) |
| 2953 | && SCHARS (value) == 0)) |
| 2954 | signal_error ("Invalid face underline", value); |
| 2955 | |
| 2956 | old_value = LFACE_UNDERLINE (lface); |
| 2957 | LFACE_UNDERLINE (lface) = value; |
| 2958 | } |
| 2959 | else if (EQ (attr, QCoverline)) |
| 2960 | { |
| 2961 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
| 2962 | if ((SYMBOLP (value) |
| 2963 | && !EQ (value, Qt) |
| 2964 | && !EQ (value, Qnil)) |
| 2965 | /* Overline color. */ |
| 2966 | || (STRINGP (value) |
| 2967 | && SCHARS (value) == 0)) |
| 2968 | signal_error ("Invalid face overline", value); |
| 2969 | |
| 2970 | old_value = LFACE_OVERLINE (lface); |
| 2971 | LFACE_OVERLINE (lface) = value; |
| 2972 | } |
| 2973 | else if (EQ (attr, QCstrike_through)) |
| 2974 | { |
| 2975 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
| 2976 | if ((SYMBOLP (value) |
| 2977 | && !EQ (value, Qt) |
| 2978 | && !EQ (value, Qnil)) |
| 2979 | /* Strike-through color. */ |
| 2980 | || (STRINGP (value) |
| 2981 | && SCHARS (value) == 0)) |
| 2982 | signal_error ("Invalid face strike-through", value); |
| 2983 | |
| 2984 | old_value = LFACE_STRIKE_THROUGH (lface); |
| 2985 | LFACE_STRIKE_THROUGH (lface) = value; |
| 2986 | } |
| 2987 | else if (EQ (attr, QCbox)) |
| 2988 | { |
| 2989 | int valid_p; |
| 2990 | |
| 2991 | /* Allow t meaning a simple box of width 1 in foreground color |
| 2992 | of the face. */ |
| 2993 | if (EQ (value, Qt)) |
| 2994 | value = make_number (1); |
| 2995 | |
| 2996 | if (UNSPECIFIEDP (value) || IGNORE_DEFFACE_P (value)) |
| 2997 | valid_p = 1; |
| 2998 | else if (NILP (value)) |
| 2999 | valid_p = 1; |
| 3000 | else if (INTEGERP (value)) |
| 3001 | valid_p = XINT (value) != 0; |
| 3002 | else if (STRINGP (value)) |
| 3003 | valid_p = SCHARS (value) > 0; |
| 3004 | else if (CONSP (value)) |
| 3005 | { |
| 3006 | Lisp_Object tem; |
| 3007 | |
| 3008 | tem = value; |
| 3009 | while (CONSP (tem)) |
| 3010 | { |
| 3011 | Lisp_Object k, v; |
| 3012 | |
| 3013 | k = XCAR (tem); |
| 3014 | tem = XCDR (tem); |
| 3015 | if (!CONSP (tem)) |
| 3016 | break; |
| 3017 | v = XCAR (tem); |
| 3018 | tem = XCDR (tem); |
| 3019 | |
| 3020 | if (EQ (k, QCline_width)) |
| 3021 | { |
| 3022 | if (!INTEGERP (v) || XINT (v) == 0) |
| 3023 | break; |
| 3024 | } |
| 3025 | else if (EQ (k, QCcolor)) |
| 3026 | { |
| 3027 | if (!NILP (v) && (!STRINGP (v) || SCHARS (v) == 0)) |
| 3028 | break; |
| 3029 | } |
| 3030 | else if (EQ (k, QCstyle)) |
| 3031 | { |
| 3032 | if (!EQ (v, Qpressed_button) && !EQ (v, Qreleased_button)) |
| 3033 | break; |
| 3034 | } |
| 3035 | else |
| 3036 | break; |
| 3037 | } |
| 3038 | |
| 3039 | valid_p = NILP (tem); |
| 3040 | } |
| 3041 | else |
| 3042 | valid_p = 0; |
| 3043 | |
| 3044 | if (!valid_p) |
| 3045 | signal_error ("Invalid face box", value); |
| 3046 | |
| 3047 | old_value = LFACE_BOX (lface); |
| 3048 | LFACE_BOX (lface) = value; |
| 3049 | } |
| 3050 | else if (EQ (attr, QCinverse_video) |
| 3051 | || EQ (attr, QCreverse_video)) |
| 3052 | { |
| 3053 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
| 3054 | { |
| 3055 | CHECK_SYMBOL (value); |
| 3056 | if (!EQ (value, Qt) && !NILP (value)) |
| 3057 | signal_error ("Invalid inverse-video face attribute value", value); |
| 3058 | } |
| 3059 | old_value = LFACE_INVERSE (lface); |
| 3060 | LFACE_INVERSE (lface) = value; |
| 3061 | } |
| 3062 | else if (EQ (attr, QCforeground)) |
| 3063 | { |
| 3064 | /* Compatibility with 20.x. */ |
| 3065 | if (NILP (value)) |
| 3066 | value = Qunspecified; |
| 3067 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
| 3068 | { |
| 3069 | /* Don't check for valid color names here because it depends |
| 3070 | on the frame (display) whether the color will be valid |
| 3071 | when the face is realized. */ |
| 3072 | CHECK_STRING (value); |
| 3073 | if (SCHARS (value) == 0) |
| 3074 | signal_error ("Empty foreground color value", value); |
| 3075 | } |
| 3076 | old_value = LFACE_FOREGROUND (lface); |
| 3077 | LFACE_FOREGROUND (lface) = value; |
| 3078 | } |
| 3079 | else if (EQ (attr, QCbackground)) |
| 3080 | { |
| 3081 | /* Compatibility with 20.x. */ |
| 3082 | if (NILP (value)) |
| 3083 | value = Qunspecified; |
| 3084 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
| 3085 | { |
| 3086 | /* Don't check for valid color names here because it depends |
| 3087 | on the frame (display) whether the color will be valid |
| 3088 | when the face is realized. */ |
| 3089 | CHECK_STRING (value); |
| 3090 | if (SCHARS (value) == 0) |
| 3091 | signal_error ("Empty background color value", value); |
| 3092 | } |
| 3093 | old_value = LFACE_BACKGROUND (lface); |
| 3094 | LFACE_BACKGROUND (lface) = value; |
| 3095 | } |
| 3096 | else if (EQ (attr, QCstipple)) |
| 3097 | { |
| 3098 | #if defined (HAVE_X_WINDOWS) || defined (HAVE_NS) |
| 3099 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value) |
| 3100 | && !NILP (value) |
| 3101 | && NILP (Fbitmap_spec_p (value))) |
| 3102 | signal_error ("Invalid stipple attribute", value); |
| 3103 | old_value = LFACE_STIPPLE (lface); |
| 3104 | LFACE_STIPPLE (lface) = value; |
| 3105 | #endif /* HAVE_X_WINDOWS || HAVE_NS */ |
| 3106 | } |
| 3107 | else if (EQ (attr, QCwidth)) |
| 3108 | { |
| 3109 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
| 3110 | { |
| 3111 | CHECK_SYMBOL (value); |
| 3112 | if (FONT_WIDTH_NAME_NUMERIC (value) < 0) |
| 3113 | signal_error ("Invalid face width", value); |
| 3114 | } |
| 3115 | old_value = LFACE_SWIDTH (lface); |
| 3116 | LFACE_SWIDTH (lface) = value; |
| 3117 | prop_index = FONT_WIDTH_INDEX; |
| 3118 | } |
| 3119 | else if (EQ (attr, QCfont)) |
| 3120 | { |
| 3121 | #ifdef HAVE_WINDOW_SYSTEM |
| 3122 | if (EQ (frame, Qt) || FRAME_WINDOW_P (XFRAME (frame))) |
| 3123 | { |
| 3124 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
| 3125 | { |
| 3126 | FRAME_PTR f; |
| 3127 | |
| 3128 | old_value = LFACE_FONT (lface); |
| 3129 | if (! FONTP (value)) |
| 3130 | { |
| 3131 | if (STRINGP (value)) |
| 3132 | { |
| 3133 | Lisp_Object name = value; |
| 3134 | int fontset = fs_query_fontset (name, 0); |
| 3135 | |
| 3136 | if (fontset >= 0) |
| 3137 | name = fontset_ascii (fontset); |
| 3138 | value = font_spec_from_name (name); |
| 3139 | if (!FONTP (value)) |
| 3140 | signal_error ("Invalid font name", name); |
| 3141 | } |
| 3142 | else |
| 3143 | signal_error ("Invalid font or font-spec", value); |
| 3144 | } |
| 3145 | if (EQ (frame, Qt)) |
| 3146 | f = XFRAME (selected_frame); |
| 3147 | else |
| 3148 | f = XFRAME (frame); |
| 3149 | if (! FONT_OBJECT_P (value)) |
| 3150 | { |
| 3151 | Lisp_Object *attrs = XVECTOR (lface)->contents; |
| 3152 | Lisp_Object font_object; |
| 3153 | |
| 3154 | font_object = font_load_for_lface (f, attrs, value); |
| 3155 | if (NILP (font_object)) |
| 3156 | signal_error ("Font not available", value); |
| 3157 | value = font_object; |
| 3158 | } |
| 3159 | set_lface_from_font (f, lface, value, 1); |
| 3160 | } |
| 3161 | else |
| 3162 | LFACE_FONT (lface) = value; |
| 3163 | } |
| 3164 | #endif /* HAVE_WINDOW_SYSTEM */ |
| 3165 | } |
| 3166 | else if (EQ (attr, QCfontset)) |
| 3167 | { |
| 3168 | #ifdef HAVE_WINDOW_SYSTEM |
| 3169 | if (EQ (frame, Qt) || FRAME_WINDOW_P (XFRAME (frame))) |
| 3170 | { |
| 3171 | Lisp_Object tmp; |
| 3172 | |
| 3173 | old_value = LFACE_FONTSET (lface); |
| 3174 | tmp = Fquery_fontset (value, Qnil); |
| 3175 | if (NILP (tmp)) |
| 3176 | signal_error ("Invalid fontset name", value); |
| 3177 | LFACE_FONTSET (lface) = value = tmp; |
| 3178 | } |
| 3179 | #endif /* HAVE_WINDOW_SYSTEM */ |
| 3180 | } |
| 3181 | else if (EQ (attr, QCinherit)) |
| 3182 | { |
| 3183 | Lisp_Object tail; |
| 3184 | if (SYMBOLP (value)) |
| 3185 | tail = Qnil; |
| 3186 | else |
| 3187 | for (tail = value; CONSP (tail); tail = XCDR (tail)) |
| 3188 | if (!SYMBOLP (XCAR (tail))) |
| 3189 | break; |
| 3190 | if (NILP (tail)) |
| 3191 | LFACE_INHERIT (lface) = value; |
| 3192 | else |
| 3193 | signal_error ("Invalid face inheritance", value); |
| 3194 | } |
| 3195 | else if (EQ (attr, QCbold)) |
| 3196 | { |
| 3197 | old_value = LFACE_WEIGHT (lface); |
| 3198 | LFACE_WEIGHT (lface) = NILP (value) ? Qnormal : Qbold; |
| 3199 | prop_index = FONT_WEIGHT_INDEX; |
| 3200 | } |
| 3201 | else if (EQ (attr, QCitalic)) |
| 3202 | { |
| 3203 | attr = QCslant; |
| 3204 | old_value = LFACE_SLANT (lface); |
| 3205 | LFACE_SLANT (lface) = NILP (value) ? Qnormal : Qitalic; |
| 3206 | prop_index = FONT_SLANT_INDEX; |
| 3207 | } |
| 3208 | else |
| 3209 | signal_error ("Invalid face attribute name", attr); |
| 3210 | |
| 3211 | if (prop_index) |
| 3212 | { |
| 3213 | /* If a font-related attribute other than QCfont and QCfontset |
| 3214 | is specified, and if the original QCfont attribute has a font |
| 3215 | (font-spec or font-object), set the corresponding property in |
| 3216 | the font to nil so that the font selector doesn't think that |
| 3217 | the attribute is mandatory. Also, clear the average |
| 3218 | width. */ |
| 3219 | font_clear_prop (XVECTOR (lface)->contents, prop_index); |
| 3220 | } |
| 3221 | |
| 3222 | /* Changing a named face means that all realized faces depending on |
| 3223 | that face are invalid. Since we cannot tell which realized faces |
| 3224 | depend on the face, make sure they are all removed. This is done |
| 3225 | by incrementing face_change_count. The next call to |
| 3226 | init_iterator will then free realized faces. */ |
| 3227 | if (!EQ (frame, Qt) |
| 3228 | && NILP (Fget (face, Qface_no_inherit)) |
| 3229 | && NILP (Fequal (old_value, value))) |
| 3230 | { |
| 3231 | ++face_change_count; |
| 3232 | ++windows_or_buffers_changed; |
| 3233 | } |
| 3234 | |
| 3235 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value) |
| 3236 | && NILP (Fequal (old_value, value))) |
| 3237 | { |
| 3238 | Lisp_Object param; |
| 3239 | |
| 3240 | param = Qnil; |
| 3241 | |
| 3242 | if (EQ (face, Qdefault)) |
| 3243 | { |
| 3244 | #ifdef HAVE_WINDOW_SYSTEM |
| 3245 | /* Changed font-related attributes of the `default' face are |
| 3246 | reflected in changed `font' frame parameters. */ |
| 3247 | if (FRAMEP (frame) |
| 3248 | && (prop_index || EQ (attr, QCfont)) |
| 3249 | && lface_fully_specified_p (XVECTOR (lface)->contents)) |
| 3250 | set_font_frame_param (frame, lface); |
| 3251 | else |
| 3252 | #endif /* HAVE_WINDOW_SYSTEM */ |
| 3253 | |
| 3254 | if (EQ (attr, QCforeground)) |
| 3255 | param = Qforeground_color; |
| 3256 | else if (EQ (attr, QCbackground)) |
| 3257 | param = Qbackground_color; |
| 3258 | } |
| 3259 | #ifdef HAVE_WINDOW_SYSTEM |
| 3260 | #ifndef WINDOWSNT |
| 3261 | else if (EQ (face, Qscroll_bar)) |
| 3262 | { |
| 3263 | /* Changing the colors of `scroll-bar' sets frame parameters |
| 3264 | `scroll-bar-foreground' and `scroll-bar-background'. */ |
| 3265 | if (EQ (attr, QCforeground)) |
| 3266 | param = Qscroll_bar_foreground; |
| 3267 | else if (EQ (attr, QCbackground)) |
| 3268 | param = Qscroll_bar_background; |
| 3269 | } |
| 3270 | #endif /* not WINDOWSNT */ |
| 3271 | else if (EQ (face, Qborder)) |
| 3272 | { |
| 3273 | /* Changing background color of `border' sets frame parameter |
| 3274 | `border-color'. */ |
| 3275 | if (EQ (attr, QCbackground)) |
| 3276 | param = Qborder_color; |
| 3277 | } |
| 3278 | else if (EQ (face, Qcursor)) |
| 3279 | { |
| 3280 | /* Changing background color of `cursor' sets frame parameter |
| 3281 | `cursor-color'. */ |
| 3282 | if (EQ (attr, QCbackground)) |
| 3283 | param = Qcursor_color; |
| 3284 | } |
| 3285 | else if (EQ (face, Qmouse)) |
| 3286 | { |
| 3287 | /* Changing background color of `mouse' sets frame parameter |
| 3288 | `mouse-color'. */ |
| 3289 | if (EQ (attr, QCbackground)) |
| 3290 | param = Qmouse_color; |
| 3291 | } |
| 3292 | #endif /* HAVE_WINDOW_SYSTEM */ |
| 3293 | else if (EQ (face, Qmenu)) |
| 3294 | { |
| 3295 | /* Indicate that we have to update the menu bar when |
| 3296 | realizing faces on FRAME. FRAME t change the |
| 3297 | default for new frames. We do this by setting |
| 3298 | setting the flag in new face caches */ |
| 3299 | if (FRAMEP (frame)) |
| 3300 | { |
| 3301 | struct frame *f = XFRAME (frame); |
| 3302 | if (FRAME_FACE_CACHE (f) == NULL) |
| 3303 | FRAME_FACE_CACHE (f) = make_face_cache (f); |
| 3304 | FRAME_FACE_CACHE (f)->menu_face_changed_p = 1; |
| 3305 | } |
| 3306 | else |
| 3307 | menu_face_changed_default = 1; |
| 3308 | } |
| 3309 | |
| 3310 | if (!NILP (param)) |
| 3311 | { |
| 3312 | if (EQ (frame, Qt)) |
| 3313 | /* Update `default-frame-alist', which is used for new frames. */ |
| 3314 | { |
| 3315 | store_in_alist (&Vdefault_frame_alist, param, value); |
| 3316 | } |
| 3317 | else |
| 3318 | /* Update the current frame's parameters. */ |
| 3319 | { |
| 3320 | Lisp_Object cons; |
| 3321 | cons = XCAR (Vparam_value_alist); |
| 3322 | XSETCAR (cons, param); |
| 3323 | XSETCDR (cons, value); |
| 3324 | Fmodify_frame_parameters (frame, Vparam_value_alist); |
| 3325 | } |
| 3326 | } |
| 3327 | } |
| 3328 | |
| 3329 | return face; |
| 3330 | } |
| 3331 | |
| 3332 | |
| 3333 | /* Update the corresponding face when frame parameter PARAM on frame F |
| 3334 | has been assigned the value NEW_VALUE. */ |
| 3335 | |
| 3336 | void |
| 3337 | update_face_from_frame_parameter (struct frame *f, Lisp_Object param, |
| 3338 | Lisp_Object new_value) |
| 3339 | { |
| 3340 | Lisp_Object face = Qnil; |
| 3341 | Lisp_Object lface; |
| 3342 | |
| 3343 | /* If there are no faces yet, give up. This is the case when called |
| 3344 | from Fx_create_frame, and we do the necessary things later in |
| 3345 | face-set-after-frame-defaults. */ |
| 3346 | if (NILP (f->face_alist)) |
| 3347 | return; |
| 3348 | |
| 3349 | if (EQ (param, Qforeground_color)) |
| 3350 | { |
| 3351 | face = Qdefault; |
| 3352 | lface = lface_from_face_name (f, face, 1); |
| 3353 | LFACE_FOREGROUND (lface) = (STRINGP (new_value) |
| 3354 | ? new_value : Qunspecified); |
| 3355 | realize_basic_faces (f); |
| 3356 | } |
| 3357 | else if (EQ (param, Qbackground_color)) |
| 3358 | { |
| 3359 | Lisp_Object frame; |
| 3360 | |
| 3361 | /* Changing the background color might change the background |
| 3362 | mode, so that we have to load new defface specs. |
| 3363 | Call frame-update-face-colors to do that. */ |
| 3364 | XSETFRAME (frame, f); |
| 3365 | call1 (Qframe_set_background_mode, frame); |
| 3366 | |
| 3367 | face = Qdefault; |
| 3368 | lface = lface_from_face_name (f, face, 1); |
| 3369 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) |
| 3370 | ? new_value : Qunspecified); |
| 3371 | realize_basic_faces (f); |
| 3372 | } |
| 3373 | #ifdef HAVE_WINDOW_SYSTEM |
| 3374 | else if (EQ (param, Qborder_color)) |
| 3375 | { |
| 3376 | face = Qborder; |
| 3377 | lface = lface_from_face_name (f, face, 1); |
| 3378 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) |
| 3379 | ? new_value : Qunspecified); |
| 3380 | } |
| 3381 | else if (EQ (param, Qcursor_color)) |
| 3382 | { |
| 3383 | face = Qcursor; |
| 3384 | lface = lface_from_face_name (f, face, 1); |
| 3385 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) |
| 3386 | ? new_value : Qunspecified); |
| 3387 | } |
| 3388 | else if (EQ (param, Qmouse_color)) |
| 3389 | { |
| 3390 | face = Qmouse; |
| 3391 | lface = lface_from_face_name (f, face, 1); |
| 3392 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) |
| 3393 | ? new_value : Qunspecified); |
| 3394 | } |
| 3395 | #endif |
| 3396 | |
| 3397 | /* Changing a named face means that all realized faces depending on |
| 3398 | that face are invalid. Since we cannot tell which realized faces |
| 3399 | depend on the face, make sure they are all removed. This is done |
| 3400 | by incrementing face_change_count. The next call to |
| 3401 | init_iterator will then free realized faces. */ |
| 3402 | if (!NILP (face) |
| 3403 | && NILP (Fget (face, Qface_no_inherit))) |
| 3404 | { |
| 3405 | ++face_change_count; |
| 3406 | ++windows_or_buffers_changed; |
| 3407 | } |
| 3408 | } |
| 3409 | |
| 3410 | |
| 3411 | #ifdef HAVE_WINDOW_SYSTEM |
| 3412 | |
| 3413 | /* Set the `font' frame parameter of FRAME determined from the |
| 3414 | font-object set in `default' face attributes LFACE. */ |
| 3415 | |
| 3416 | static void |
| 3417 | set_font_frame_param (Lisp_Object frame, Lisp_Object lface) |
| 3418 | { |
| 3419 | struct frame *f = XFRAME (frame); |
| 3420 | Lisp_Object font; |
| 3421 | |
| 3422 | if (FRAME_WINDOW_P (f) |
| 3423 | /* Don't do anything if the font is `unspecified'. This can |
| 3424 | happen during frame creation. */ |
| 3425 | && (font = LFACE_FONT (lface), |
| 3426 | ! UNSPECIFIEDP (font))) |
| 3427 | { |
| 3428 | if (FONT_SPEC_P (font)) |
| 3429 | { |
| 3430 | font = font_load_for_lface (f, XVECTOR (lface)->contents, font); |
| 3431 | if (NILP (font)) |
| 3432 | return; |
| 3433 | LFACE_FONT (lface) = font; |
| 3434 | } |
| 3435 | f->default_face_done_p = 0; |
| 3436 | Fmodify_frame_parameters (frame, Fcons (Fcons (Qfont, font), Qnil)); |
| 3437 | } |
| 3438 | } |
| 3439 | |
| 3440 | |
| 3441 | /* Get the value of X resource RESOURCE, class CLASS for the display |
| 3442 | of frame FRAME. This is here because ordinary `x-get-resource' |
| 3443 | doesn't take a frame argument. */ |
| 3444 | |
| 3445 | DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource, |
| 3446 | Sinternal_face_x_get_resource, 3, 3, 0, doc: /* */) |
| 3447 | (Lisp_Object resource, Lisp_Object class, Lisp_Object frame) |
| 3448 | { |
| 3449 | Lisp_Object value = Qnil; |
| 3450 | CHECK_STRING (resource); |
| 3451 | CHECK_STRING (class); |
| 3452 | CHECK_LIVE_FRAME (frame); |
| 3453 | BLOCK_INPUT; |
| 3454 | value = display_x_get_resource (FRAME_X_DISPLAY_INFO (XFRAME (frame)), |
| 3455 | resource, class, Qnil, Qnil); |
| 3456 | UNBLOCK_INPUT; |
| 3457 | return value; |
| 3458 | } |
| 3459 | |
| 3460 | |
| 3461 | /* Return resource string VALUE as a boolean value, i.e. nil, or t. |
| 3462 | If VALUE is "on" or "true", return t. If VALUE is "off" or |
| 3463 | "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an |
| 3464 | error; if SIGNAL_P is zero, return 0. */ |
| 3465 | |
| 3466 | static Lisp_Object |
| 3467 | face_boolean_x_resource_value (Lisp_Object value, int signal_p) |
| 3468 | { |
| 3469 | Lisp_Object result = make_number (0); |
| 3470 | |
| 3471 | xassert (STRINGP (value)); |
| 3472 | |
| 3473 | if (xstrcasecmp (SSDATA (value), "on") == 0 |
| 3474 | || xstrcasecmp (SSDATA (value), "true") == 0) |
| 3475 | result = Qt; |
| 3476 | else if (xstrcasecmp (SSDATA (value), "off") == 0 |
| 3477 | || xstrcasecmp (SSDATA (value), "false") == 0) |
| 3478 | result = Qnil; |
| 3479 | else if (xstrcasecmp (SSDATA (value), "unspecified") == 0) |
| 3480 | result = Qunspecified; |
| 3481 | else if (signal_p) |
| 3482 | signal_error ("Invalid face attribute value from X resource", value); |
| 3483 | |
| 3484 | return result; |
| 3485 | } |
| 3486 | |
| 3487 | |
| 3488 | DEFUN ("internal-set-lisp-face-attribute-from-resource", |
| 3489 | Finternal_set_lisp_face_attribute_from_resource, |
| 3490 | Sinternal_set_lisp_face_attribute_from_resource, |
| 3491 | 3, 4, 0, doc: /* */) |
| 3492 | (Lisp_Object face, Lisp_Object attr, Lisp_Object value, Lisp_Object frame) |
| 3493 | { |
| 3494 | CHECK_SYMBOL (face); |
| 3495 | CHECK_SYMBOL (attr); |
| 3496 | CHECK_STRING (value); |
| 3497 | |
| 3498 | if (xstrcasecmp (SSDATA (value), "unspecified") == 0) |
| 3499 | value = Qunspecified; |
| 3500 | else if (EQ (attr, QCheight)) |
| 3501 | { |
| 3502 | value = Fstring_to_number (value, make_number (10)); |
| 3503 | if (XINT (value) <= 0) |
| 3504 | signal_error ("Invalid face height from X resource", value); |
| 3505 | } |
| 3506 | else if (EQ (attr, QCbold) || EQ (attr, QCitalic)) |
| 3507 | value = face_boolean_x_resource_value (value, 1); |
| 3508 | else if (EQ (attr, QCweight) || EQ (attr, QCslant) || EQ (attr, QCwidth)) |
| 3509 | value = intern (SSDATA (value)); |
| 3510 | else if (EQ (attr, QCreverse_video) || EQ (attr, QCinverse_video)) |
| 3511 | value = face_boolean_x_resource_value (value, 1); |
| 3512 | else if (EQ (attr, QCunderline) |
| 3513 | || EQ (attr, QCoverline) |
| 3514 | || EQ (attr, QCstrike_through)) |
| 3515 | { |
| 3516 | Lisp_Object boolean_value; |
| 3517 | |
| 3518 | /* If the result of face_boolean_x_resource_value is t or nil, |
| 3519 | VALUE does NOT specify a color. */ |
| 3520 | boolean_value = face_boolean_x_resource_value (value, 0); |
| 3521 | if (SYMBOLP (boolean_value)) |
| 3522 | value = boolean_value; |
| 3523 | } |
| 3524 | else if (EQ (attr, QCbox) || EQ (attr, QCinherit)) |
| 3525 | value = Fcar (Fread_from_string (value, Qnil, Qnil)); |
| 3526 | |
| 3527 | return Finternal_set_lisp_face_attribute (face, attr, value, frame); |
| 3528 | } |
| 3529 | |
| 3530 | #endif /* HAVE_WINDOW_SYSTEM */ |
| 3531 | |
| 3532 | \f |
| 3533 | /*********************************************************************** |
| 3534 | Menu face |
| 3535 | ***********************************************************************/ |
| 3536 | |
| 3537 | #if defined HAVE_X_WINDOWS && defined USE_X_TOOLKIT |
| 3538 | |
| 3539 | /* Make menus on frame F appear as specified by the `menu' face. */ |
| 3540 | |
| 3541 | static void |
| 3542 | x_update_menu_appearance (struct frame *f) |
| 3543 | { |
| 3544 | struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); |
| 3545 | XrmDatabase rdb; |
| 3546 | |
| 3547 | if (dpyinfo |
| 3548 | && (rdb = XrmGetDatabase (FRAME_X_DISPLAY (f)), |
| 3549 | rdb != NULL)) |
| 3550 | { |
| 3551 | char line[512]; |
| 3552 | char *buf = line; |
| 3553 | ptrdiff_t bufsize = sizeof line; |
| 3554 | Lisp_Object lface = lface_from_face_name (f, Qmenu, 1); |
| 3555 | struct face *face = FACE_FROM_ID (f, MENU_FACE_ID); |
| 3556 | const char *myname = SSDATA (Vx_resource_name); |
| 3557 | int changed_p = 0; |
| 3558 | #ifdef USE_MOTIF |
| 3559 | const char *popup_path = "popup_menu"; |
| 3560 | #else |
| 3561 | const char *popup_path = "menu.popup"; |
| 3562 | #endif |
| 3563 | |
| 3564 | if (STRINGP (LFACE_FOREGROUND (lface))) |
| 3565 | { |
| 3566 | exprintf (&buf, &bufsize, line, -1, "%s.%s*foreground: %s", |
| 3567 | myname, popup_path, |
| 3568 | SDATA (LFACE_FOREGROUND (lface))); |
| 3569 | XrmPutLineResource (&rdb, line); |
| 3570 | exprintf (&buf, &bufsize, line, -1, "%s.pane.menubar*foreground: %s", |
| 3571 | myname, SDATA (LFACE_FOREGROUND (lface))); |
| 3572 | XrmPutLineResource (&rdb, line); |
| 3573 | changed_p = 1; |
| 3574 | } |
| 3575 | |
| 3576 | if (STRINGP (LFACE_BACKGROUND (lface))) |
| 3577 | { |
| 3578 | exprintf (&buf, &bufsize, line, -1, "%s.%s*background: %s", |
| 3579 | myname, popup_path, |
| 3580 | SDATA (LFACE_BACKGROUND (lface))); |
| 3581 | XrmPutLineResource (&rdb, line); |
| 3582 | |
| 3583 | exprintf (&buf, &bufsize, line, -1, "%s.pane.menubar*background: %s", |
| 3584 | myname, SDATA (LFACE_BACKGROUND (lface))); |
| 3585 | XrmPutLineResource (&rdb, line); |
| 3586 | changed_p = 1; |
| 3587 | } |
| 3588 | |
| 3589 | if (face->font |
| 3590 | /* On Solaris 5.8, it's been reported that the `menu' face |
| 3591 | can be unspecified here, during startup. Why this |
| 3592 | happens remains unknown. -- cyd */ |
| 3593 | && FONTP (LFACE_FONT (lface)) |
| 3594 | && (!UNSPECIFIEDP (LFACE_FAMILY (lface)) |
| 3595 | || !UNSPECIFIEDP (LFACE_FOUNDRY (lface)) |
| 3596 | || !UNSPECIFIEDP (LFACE_SWIDTH (lface)) |
| 3597 | || !UNSPECIFIEDP (LFACE_WEIGHT (lface)) |
| 3598 | || !UNSPECIFIEDP (LFACE_SLANT (lface)) |
| 3599 | || !UNSPECIFIEDP (LFACE_HEIGHT (lface)))) |
| 3600 | { |
| 3601 | Lisp_Object xlfd = Ffont_xlfd_name (LFACE_FONT (lface), Qnil); |
| 3602 | #ifdef USE_MOTIF |
| 3603 | const char *suffix = "List"; |
| 3604 | Bool motif = True; |
| 3605 | #else |
| 3606 | #if defined HAVE_X_I18N |
| 3607 | |
| 3608 | const char *suffix = "Set"; |
| 3609 | #else |
| 3610 | const char *suffix = ""; |
| 3611 | #endif |
| 3612 | Bool motif = False; |
| 3613 | #endif |
| 3614 | |
| 3615 | if (! NILP (xlfd)) |
| 3616 | { |
| 3617 | #if defined HAVE_X_I18N |
| 3618 | char *fontsetname = xic_create_fontsetname (SSDATA (xlfd), motif); |
| 3619 | #else |
| 3620 | char *fontsetname = SSDATA (xlfd); |
| 3621 | #endif |
| 3622 | exprintf (&buf, &bufsize, line, -1, "%s.pane.menubar*font%s: %s", |
| 3623 | myname, suffix, fontsetname); |
| 3624 | XrmPutLineResource (&rdb, line); |
| 3625 | |
| 3626 | exprintf (&buf, &bufsize, line, -1, "%s.%s*font%s: %s", |
| 3627 | myname, popup_path, suffix, fontsetname); |
| 3628 | XrmPutLineResource (&rdb, line); |
| 3629 | changed_p = 1; |
| 3630 | if (fontsetname != SSDATA (xlfd)) |
| 3631 | xfree (fontsetname); |
| 3632 | } |
| 3633 | } |
| 3634 | |
| 3635 | if (changed_p && f->output_data.x->menubar_widget) |
| 3636 | free_frame_menubar (f); |
| 3637 | |
| 3638 | if (buf != line) |
| 3639 | xfree (buf); |
| 3640 | } |
| 3641 | } |
| 3642 | |
| 3643 | #endif /* HAVE_X_WINDOWS && USE_X_TOOLKIT */ |
| 3644 | |
| 3645 | |
| 3646 | DEFUN ("face-attribute-relative-p", Fface_attribute_relative_p, |
| 3647 | Sface_attribute_relative_p, |
| 3648 | 2, 2, 0, |
| 3649 | doc: /* Check whether a face attribute value is relative. |
| 3650 | Specifically, this function returns t if the attribute ATTRIBUTE |
| 3651 | with the value VALUE is relative. |
| 3652 | |
| 3653 | A relative value is one that doesn't entirely override whatever is |
| 3654 | inherited from another face. For most possible attributes, |
| 3655 | the only relative value that users see is `unspecified'. |
| 3656 | However, for :height, floating point values are also relative. */) |
| 3657 | (Lisp_Object attribute, Lisp_Object value) |
| 3658 | { |
| 3659 | if (EQ (value, Qunspecified) || (EQ (value, QCignore_defface))) |
| 3660 | return Qt; |
| 3661 | else if (EQ (attribute, QCheight)) |
| 3662 | return INTEGERP (value) ? Qnil : Qt; |
| 3663 | else |
| 3664 | return Qnil; |
| 3665 | } |
| 3666 | |
| 3667 | DEFUN ("merge-face-attribute", Fmerge_face_attribute, Smerge_face_attribute, |
| 3668 | 3, 3, 0, |
| 3669 | doc: /* Return face ATTRIBUTE VALUE1 merged with VALUE2. |
| 3670 | If VALUE1 or VALUE2 are absolute (see `face-attribute-relative-p'), then |
| 3671 | the result will be absolute, otherwise it will be relative. */) |
| 3672 | (Lisp_Object attribute, Lisp_Object value1, Lisp_Object value2) |
| 3673 | { |
| 3674 | if (EQ (value1, Qunspecified) || EQ (value1, QCignore_defface)) |
| 3675 | return value2; |
| 3676 | else if (EQ (attribute, QCheight)) |
| 3677 | return merge_face_heights (value1, value2, value1); |
| 3678 | else |
| 3679 | return value1; |
| 3680 | } |
| 3681 | |
| 3682 | |
| 3683 | DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute, |
| 3684 | Sinternal_get_lisp_face_attribute, |
| 3685 | 2, 3, 0, |
| 3686 | doc: /* Return face attribute KEYWORD of face SYMBOL. |
| 3687 | If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid |
| 3688 | face attribute name, signal an error. |
| 3689 | If the optional argument FRAME is given, report on face SYMBOL in that |
| 3690 | frame. If FRAME is t, report on the defaults for face SYMBOL (for new |
| 3691 | frames). If FRAME is omitted or nil, use the selected frame. */) |
| 3692 | (Lisp_Object symbol, Lisp_Object keyword, Lisp_Object frame) |
| 3693 | { |
| 3694 | Lisp_Object lface, value = Qnil; |
| 3695 | |
| 3696 | CHECK_SYMBOL (symbol); |
| 3697 | CHECK_SYMBOL (keyword); |
| 3698 | |
| 3699 | if (EQ (frame, Qt)) |
| 3700 | lface = lface_from_face_name (NULL, symbol, 1); |
| 3701 | else |
| 3702 | { |
| 3703 | if (NILP (frame)) |
| 3704 | frame = selected_frame; |
| 3705 | CHECK_LIVE_FRAME (frame); |
| 3706 | lface = lface_from_face_name (XFRAME (frame), symbol, 1); |
| 3707 | } |
| 3708 | |
| 3709 | if (EQ (keyword, QCfamily)) |
| 3710 | value = LFACE_FAMILY (lface); |
| 3711 | else if (EQ (keyword, QCfoundry)) |
| 3712 | value = LFACE_FOUNDRY (lface); |
| 3713 | else if (EQ (keyword, QCheight)) |
| 3714 | value = LFACE_HEIGHT (lface); |
| 3715 | else if (EQ (keyword, QCweight)) |
| 3716 | value = LFACE_WEIGHT (lface); |
| 3717 | else if (EQ (keyword, QCslant)) |
| 3718 | value = LFACE_SLANT (lface); |
| 3719 | else if (EQ (keyword, QCunderline)) |
| 3720 | value = LFACE_UNDERLINE (lface); |
| 3721 | else if (EQ (keyword, QCoverline)) |
| 3722 | value = LFACE_OVERLINE (lface); |
| 3723 | else if (EQ (keyword, QCstrike_through)) |
| 3724 | value = LFACE_STRIKE_THROUGH (lface); |
| 3725 | else if (EQ (keyword, QCbox)) |
| 3726 | value = LFACE_BOX (lface); |
| 3727 | else if (EQ (keyword, QCinverse_video) |
| 3728 | || EQ (keyword, QCreverse_video)) |
| 3729 | value = LFACE_INVERSE (lface); |
| 3730 | else if (EQ (keyword, QCforeground)) |
| 3731 | value = LFACE_FOREGROUND (lface); |
| 3732 | else if (EQ (keyword, QCbackground)) |
| 3733 | value = LFACE_BACKGROUND (lface); |
| 3734 | else if (EQ (keyword, QCstipple)) |
| 3735 | value = LFACE_STIPPLE (lface); |
| 3736 | else if (EQ (keyword, QCwidth)) |
| 3737 | value = LFACE_SWIDTH (lface); |
| 3738 | else if (EQ (keyword, QCinherit)) |
| 3739 | value = LFACE_INHERIT (lface); |
| 3740 | else if (EQ (keyword, QCfont)) |
| 3741 | value = LFACE_FONT (lface); |
| 3742 | else if (EQ (keyword, QCfontset)) |
| 3743 | value = LFACE_FONTSET (lface); |
| 3744 | else |
| 3745 | signal_error ("Invalid face attribute name", keyword); |
| 3746 | |
| 3747 | if (IGNORE_DEFFACE_P (value)) |
| 3748 | return Qunspecified; |
| 3749 | |
| 3750 | return value; |
| 3751 | } |
| 3752 | |
| 3753 | |
| 3754 | DEFUN ("internal-lisp-face-attribute-values", |
| 3755 | Finternal_lisp_face_attribute_values, |
| 3756 | Sinternal_lisp_face_attribute_values, 1, 1, 0, |
| 3757 | doc: /* Return a list of valid discrete values for face attribute ATTR. |
| 3758 | Value is nil if ATTR doesn't have a discrete set of valid values. */) |
| 3759 | (Lisp_Object attr) |
| 3760 | { |
| 3761 | Lisp_Object result = Qnil; |
| 3762 | |
| 3763 | CHECK_SYMBOL (attr); |
| 3764 | |
| 3765 | if (EQ (attr, QCunderline)) |
| 3766 | result = Fcons (Qt, Fcons (Qnil, Qnil)); |
| 3767 | else if (EQ (attr, QCoverline)) |
| 3768 | result = Fcons (Qt, Fcons (Qnil, Qnil)); |
| 3769 | else if (EQ (attr, QCstrike_through)) |
| 3770 | result = Fcons (Qt, Fcons (Qnil, Qnil)); |
| 3771 | else if (EQ (attr, QCinverse_video) || EQ (attr, QCreverse_video)) |
| 3772 | result = Fcons (Qt, Fcons (Qnil, Qnil)); |
| 3773 | |
| 3774 | return result; |
| 3775 | } |
| 3776 | |
| 3777 | |
| 3778 | DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face, |
| 3779 | Sinternal_merge_in_global_face, 2, 2, 0, |
| 3780 | doc: /* Add attributes from frame-default definition of FACE to FACE on FRAME. |
| 3781 | Default face attributes override any local face attributes. */) |
| 3782 | (Lisp_Object face, Lisp_Object frame) |
| 3783 | { |
| 3784 | int i; |
| 3785 | Lisp_Object global_lface, local_lface, *gvec, *lvec; |
| 3786 | struct frame *f = XFRAME (frame); |
| 3787 | |
| 3788 | CHECK_LIVE_FRAME (frame); |
| 3789 | global_lface = lface_from_face_name (NULL, face, 1); |
| 3790 | local_lface = lface_from_face_name (f, face, 0); |
| 3791 | if (NILP (local_lface)) |
| 3792 | local_lface = Finternal_make_lisp_face (face, frame); |
| 3793 | |
| 3794 | /* Make every specified global attribute override the local one. |
| 3795 | BEWARE!! This is only used from `face-set-after-frame-default' where |
| 3796 | the local frame is defined from default specs in `face-defface-spec' |
| 3797 | and those should be overridden by global settings. Hence the strange |
| 3798 | "global before local" priority. */ |
| 3799 | lvec = XVECTOR (local_lface)->contents; |
| 3800 | gvec = XVECTOR (global_lface)->contents; |
| 3801 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) |
| 3802 | if (IGNORE_DEFFACE_P (gvec[i])) |
| 3803 | lvec[i] = Qunspecified; |
| 3804 | else if (! UNSPECIFIEDP (gvec[i])) |
| 3805 | lvec[i] = gvec[i]; |
| 3806 | |
| 3807 | /* If the default face was changed, update the face cache and the |
| 3808 | `font' frame parameter. */ |
| 3809 | if (EQ (face, Qdefault)) |
| 3810 | { |
| 3811 | struct face_cache *c = FRAME_FACE_CACHE (f); |
| 3812 | struct face *newface, *oldface = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
| 3813 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
| 3814 | |
| 3815 | /* This can be NULL (e.g., in batch mode). */ |
| 3816 | if (oldface) |
| 3817 | { |
| 3818 | /* Ensure that the face vector is fully specified by merging |
| 3819 | the previously-cached vector. */ |
| 3820 | memcpy (attrs, oldface->lface, sizeof attrs); |
| 3821 | merge_face_vectors (f, lvec, attrs, 0); |
| 3822 | memcpy (lvec, attrs, sizeof attrs); |
| 3823 | newface = realize_face (c, lvec, DEFAULT_FACE_ID); |
| 3824 | |
| 3825 | if ((! UNSPECIFIEDP (gvec[LFACE_FAMILY_INDEX]) |
| 3826 | || ! UNSPECIFIEDP (gvec[LFACE_FOUNDRY_INDEX]) |
| 3827 | || ! UNSPECIFIEDP (gvec[LFACE_HEIGHT_INDEX]) |
| 3828 | || ! UNSPECIFIEDP (gvec[LFACE_WEIGHT_INDEX]) |
| 3829 | || ! UNSPECIFIEDP (gvec[LFACE_SLANT_INDEX]) |
| 3830 | || ! UNSPECIFIEDP (gvec[LFACE_SWIDTH_INDEX]) |
| 3831 | || ! UNSPECIFIEDP (gvec[LFACE_FONT_INDEX])) |
| 3832 | && newface->font) |
| 3833 | { |
| 3834 | Lisp_Object name = newface->font->props[FONT_NAME_INDEX]; |
| 3835 | Fmodify_frame_parameters (frame, Fcons (Fcons (Qfont, name), |
| 3836 | Qnil)); |
| 3837 | } |
| 3838 | |
| 3839 | if (STRINGP (gvec[LFACE_FOREGROUND_INDEX])) |
| 3840 | Fmodify_frame_parameters (frame, |
| 3841 | Fcons (Fcons (Qforeground_color, |
| 3842 | gvec[LFACE_FOREGROUND_INDEX]), |
| 3843 | Qnil)); |
| 3844 | |
| 3845 | if (STRINGP (gvec[LFACE_BACKGROUND_INDEX])) |
| 3846 | Fmodify_frame_parameters (frame, |
| 3847 | Fcons (Fcons (Qbackground_color, |
| 3848 | gvec[LFACE_BACKGROUND_INDEX]), |
| 3849 | Qnil)); |
| 3850 | } |
| 3851 | } |
| 3852 | |
| 3853 | return Qnil; |
| 3854 | } |
| 3855 | |
| 3856 | |
| 3857 | /* The following function is implemented for compatibility with 20.2. |
| 3858 | The function is used in x-resolve-fonts when it is asked to |
| 3859 | return fonts with the same size as the font of a face. This is |
| 3860 | done in fontset.el. */ |
| 3861 | |
| 3862 | DEFUN ("face-font", Fface_font, Sface_font, 1, 3, 0, |
| 3863 | doc: /* Return the font name of face FACE, or nil if it is unspecified. |
| 3864 | The font name is, by default, for ASCII characters. |
| 3865 | If the optional argument FRAME is given, report on face FACE in that frame. |
| 3866 | If FRAME is t, report on the defaults for face FACE (for new frames). |
| 3867 | The font default for a face is either nil, or a list |
| 3868 | of the form (bold), (italic) or (bold italic). |
| 3869 | If FRAME is omitted or nil, use the selected frame. And, in this case, |
| 3870 | if the optional third argument CHARACTER is given, |
| 3871 | return the font name used for CHARACTER. */) |
| 3872 | (Lisp_Object face, Lisp_Object frame, Lisp_Object character) |
| 3873 | { |
| 3874 | if (EQ (frame, Qt)) |
| 3875 | { |
| 3876 | Lisp_Object result = Qnil; |
| 3877 | Lisp_Object lface = lface_from_face_name (NULL, face, 1); |
| 3878 | |
| 3879 | if (!UNSPECIFIEDP (LFACE_WEIGHT (lface)) |
| 3880 | && !EQ (LFACE_WEIGHT (lface), Qnormal)) |
| 3881 | result = Fcons (Qbold, result); |
| 3882 | |
| 3883 | if (!UNSPECIFIEDP (LFACE_SLANT (lface)) |
| 3884 | && !EQ (LFACE_SLANT (lface), Qnormal)) |
| 3885 | result = Fcons (Qitalic, result); |
| 3886 | |
| 3887 | return result; |
| 3888 | } |
| 3889 | else |
| 3890 | { |
| 3891 | struct frame *f = frame_or_selected_frame (frame, 1); |
| 3892 | int face_id = lookup_named_face (f, face, 1); |
| 3893 | struct face *fface = FACE_FROM_ID (f, face_id); |
| 3894 | |
| 3895 | if (! fface) |
| 3896 | return Qnil; |
| 3897 | #ifdef HAVE_WINDOW_SYSTEM |
| 3898 | if (FRAME_WINDOW_P (f) && !NILP (character)) |
| 3899 | { |
| 3900 | CHECK_CHARACTER (character); |
| 3901 | face_id = FACE_FOR_CHAR (f, fface, XINT (character), -1, Qnil); |
| 3902 | fface = FACE_FROM_ID (f, face_id); |
| 3903 | } |
| 3904 | return (fface->font |
| 3905 | ? fface->font->props[FONT_NAME_INDEX] |
| 3906 | : Qnil); |
| 3907 | #else /* !HAVE_WINDOW_SYSTEM */ |
| 3908 | return build_string (FRAME_MSDOS_P (f) |
| 3909 | ? "ms-dos" |
| 3910 | : FRAME_W32_P (f) ? "w32term" |
| 3911 | :"tty"); |
| 3912 | #endif |
| 3913 | } |
| 3914 | } |
| 3915 | |
| 3916 | |
| 3917 | /* Compare face-attribute values v1 and v2 for equality. Value is non-zero if |
| 3918 | all attributes are `equal'. Tries to be fast because this function |
| 3919 | is called quite often. */ |
| 3920 | |
| 3921 | static inline int |
| 3922 | face_attr_equal_p (Lisp_Object v1, Lisp_Object v2) |
| 3923 | { |
| 3924 | /* Type can differ, e.g. when one attribute is unspecified, i.e. nil, |
| 3925 | and the other is specified. */ |
| 3926 | if (XTYPE (v1) != XTYPE (v2)) |
| 3927 | return 0; |
| 3928 | |
| 3929 | if (EQ (v1, v2)) |
| 3930 | return 1; |
| 3931 | |
| 3932 | switch (XTYPE (v1)) |
| 3933 | { |
| 3934 | case Lisp_String: |
| 3935 | if (SBYTES (v1) != SBYTES (v2)) |
| 3936 | return 0; |
| 3937 | |
| 3938 | return memcmp (SDATA (v1), SDATA (v2), SBYTES (v1)) == 0; |
| 3939 | |
| 3940 | case_Lisp_Int: |
| 3941 | case Lisp_Symbol: |
| 3942 | return 0; |
| 3943 | |
| 3944 | default: |
| 3945 | return !NILP (Fequal (v1, v2)); |
| 3946 | } |
| 3947 | } |
| 3948 | |
| 3949 | |
| 3950 | /* Compare face vectors V1 and V2 for equality. Value is non-zero if |
| 3951 | all attributes are `equal'. Tries to be fast because this function |
| 3952 | is called quite often. */ |
| 3953 | |
| 3954 | static inline int |
| 3955 | lface_equal_p (Lisp_Object *v1, Lisp_Object *v2) |
| 3956 | { |
| 3957 | int i, equal_p = 1; |
| 3958 | |
| 3959 | for (i = 1; i < LFACE_VECTOR_SIZE && equal_p; ++i) |
| 3960 | equal_p = face_attr_equal_p (v1[i], v2[i]); |
| 3961 | |
| 3962 | return equal_p; |
| 3963 | } |
| 3964 | |
| 3965 | |
| 3966 | DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p, |
| 3967 | Sinternal_lisp_face_equal_p, 2, 3, 0, |
| 3968 | doc: /* True if FACE1 and FACE2 are equal. |
| 3969 | If the optional argument FRAME is given, report on FACE1 and FACE2 in that frame. |
| 3970 | If FRAME is t, report on the defaults for FACE1 and FACE2 (for new frames). |
| 3971 | If FRAME is omitted or nil, use the selected frame. */) |
| 3972 | (Lisp_Object face1, Lisp_Object face2, Lisp_Object frame) |
| 3973 | { |
| 3974 | int equal_p; |
| 3975 | struct frame *f; |
| 3976 | Lisp_Object lface1, lface2; |
| 3977 | |
| 3978 | if (EQ (frame, Qt)) |
| 3979 | f = NULL; |
| 3980 | else |
| 3981 | /* Don't use check_x_frame here because this function is called |
| 3982 | before X frames exist. At that time, if FRAME is nil, |
| 3983 | selected_frame will be used which is the frame dumped with |
| 3984 | Emacs. That frame is not an X frame. */ |
| 3985 | f = frame_or_selected_frame (frame, 2); |
| 3986 | |
| 3987 | lface1 = lface_from_face_name (f, face1, 1); |
| 3988 | lface2 = lface_from_face_name (f, face2, 1); |
| 3989 | equal_p = lface_equal_p (XVECTOR (lface1)->contents, |
| 3990 | XVECTOR (lface2)->contents); |
| 3991 | return equal_p ? Qt : Qnil; |
| 3992 | } |
| 3993 | |
| 3994 | |
| 3995 | DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p, |
| 3996 | Sinternal_lisp_face_empty_p, 1, 2, 0, |
| 3997 | doc: /* True if FACE has no attribute specified. |
| 3998 | If the optional argument FRAME is given, report on face FACE in that frame. |
| 3999 | If FRAME is t, report on the defaults for face FACE (for new frames). |
| 4000 | If FRAME is omitted or nil, use the selected frame. */) |
| 4001 | (Lisp_Object face, Lisp_Object frame) |
| 4002 | { |
| 4003 | struct frame *f; |
| 4004 | Lisp_Object lface; |
| 4005 | int i; |
| 4006 | |
| 4007 | if (NILP (frame)) |
| 4008 | frame = selected_frame; |
| 4009 | CHECK_LIVE_FRAME (frame); |
| 4010 | f = XFRAME (frame); |
| 4011 | |
| 4012 | if (EQ (frame, Qt)) |
| 4013 | lface = lface_from_face_name (NULL, face, 1); |
| 4014 | else |
| 4015 | lface = lface_from_face_name (f, face, 1); |
| 4016 | |
| 4017 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) |
| 4018 | if (!UNSPECIFIEDP (AREF (lface, i))) |
| 4019 | break; |
| 4020 | |
| 4021 | return i == LFACE_VECTOR_SIZE ? Qt : Qnil; |
| 4022 | } |
| 4023 | |
| 4024 | |
| 4025 | DEFUN ("frame-face-alist", Fframe_face_alist, Sframe_face_alist, |
| 4026 | 0, 1, 0, |
| 4027 | doc: /* Return an alist of frame-local faces defined on FRAME. |
| 4028 | For internal use only. */) |
| 4029 | (Lisp_Object frame) |
| 4030 | { |
| 4031 | struct frame *f = frame_or_selected_frame (frame, 0); |
| 4032 | return f->face_alist; |
| 4033 | } |
| 4034 | |
| 4035 | |
| 4036 | /* Return a hash code for Lisp string STRING with case ignored. Used |
| 4037 | below in computing a hash value for a Lisp face. */ |
| 4038 | |
| 4039 | static inline unsigned |
| 4040 | hash_string_case_insensitive (Lisp_Object string) |
| 4041 | { |
| 4042 | const unsigned char *s; |
| 4043 | unsigned hash = 0; |
| 4044 | xassert (STRINGP (string)); |
| 4045 | for (s = SDATA (string); *s; ++s) |
| 4046 | hash = (hash << 1) ^ tolower (*s); |
| 4047 | return hash; |
| 4048 | } |
| 4049 | |
| 4050 | |
| 4051 | /* Return a hash code for face attribute vector V. */ |
| 4052 | |
| 4053 | static inline unsigned |
| 4054 | lface_hash (Lisp_Object *v) |
| 4055 | { |
| 4056 | return (hash_string_case_insensitive (v[LFACE_FAMILY_INDEX]) |
| 4057 | ^ hash_string_case_insensitive (v[LFACE_FOUNDRY_INDEX]) |
| 4058 | ^ hash_string_case_insensitive (v[LFACE_FOREGROUND_INDEX]) |
| 4059 | ^ hash_string_case_insensitive (v[LFACE_BACKGROUND_INDEX]) |
| 4060 | ^ XHASH (v[LFACE_WEIGHT_INDEX]) |
| 4061 | ^ XHASH (v[LFACE_SLANT_INDEX]) |
| 4062 | ^ XHASH (v[LFACE_SWIDTH_INDEX]) |
| 4063 | ^ XHASH (v[LFACE_HEIGHT_INDEX])); |
| 4064 | } |
| 4065 | |
| 4066 | |
| 4067 | /* Return non-zero if LFACE1 and LFACE2 specify the same font (without |
| 4068 | considering charsets/registries). They do if they specify the same |
| 4069 | family, point size, weight, width, slant, and font. Both |
| 4070 | LFACE1 and LFACE2 must be fully-specified. */ |
| 4071 | |
| 4072 | static inline int |
| 4073 | lface_same_font_attributes_p (Lisp_Object *lface1, Lisp_Object *lface2) |
| 4074 | { |
| 4075 | xassert (lface_fully_specified_p (lface1) |
| 4076 | && lface_fully_specified_p (lface2)); |
| 4077 | return (xstrcasecmp (SSDATA (lface1[LFACE_FAMILY_INDEX]), |
| 4078 | SSDATA (lface2[LFACE_FAMILY_INDEX])) == 0 |
| 4079 | && xstrcasecmp (SSDATA (lface1[LFACE_FOUNDRY_INDEX]), |
| 4080 | SSDATA (lface2[LFACE_FOUNDRY_INDEX])) == 0 |
| 4081 | && EQ (lface1[LFACE_HEIGHT_INDEX], lface2[LFACE_HEIGHT_INDEX]) |
| 4082 | && EQ (lface1[LFACE_SWIDTH_INDEX], lface2[LFACE_SWIDTH_INDEX]) |
| 4083 | && EQ (lface1[LFACE_WEIGHT_INDEX], lface2[LFACE_WEIGHT_INDEX]) |
| 4084 | && EQ (lface1[LFACE_SLANT_INDEX], lface2[LFACE_SLANT_INDEX]) |
| 4085 | && EQ (lface1[LFACE_FONT_INDEX], lface2[LFACE_FONT_INDEX]) |
| 4086 | && (EQ (lface1[LFACE_FONTSET_INDEX], lface2[LFACE_FONTSET_INDEX]) |
| 4087 | || (STRINGP (lface1[LFACE_FONTSET_INDEX]) |
| 4088 | && STRINGP (lface2[LFACE_FONTSET_INDEX]) |
| 4089 | && ! xstrcasecmp (SSDATA (lface1[LFACE_FONTSET_INDEX]), |
| 4090 | SSDATA (lface2[LFACE_FONTSET_INDEX])))) |
| 4091 | ); |
| 4092 | } |
| 4093 | |
| 4094 | |
| 4095 | \f |
| 4096 | /*********************************************************************** |
| 4097 | Realized Faces |
| 4098 | ***********************************************************************/ |
| 4099 | |
| 4100 | /* Allocate and return a new realized face for Lisp face attribute |
| 4101 | vector ATTR. */ |
| 4102 | |
| 4103 | static struct face * |
| 4104 | make_realized_face (Lisp_Object *attr) |
| 4105 | { |
| 4106 | struct face *face = (struct face *) xmalloc (sizeof *face); |
| 4107 | memset (face, 0, sizeof *face); |
| 4108 | face->ascii_face = face; |
| 4109 | memcpy (face->lface, attr, sizeof face->lface); |
| 4110 | return face; |
| 4111 | } |
| 4112 | |
| 4113 | |
| 4114 | /* Free realized face FACE, including its X resources. FACE may |
| 4115 | be null. */ |
| 4116 | |
| 4117 | static void |
| 4118 | free_realized_face (struct frame *f, struct face *face) |
| 4119 | { |
| 4120 | if (face) |
| 4121 | { |
| 4122 | #ifdef HAVE_WINDOW_SYSTEM |
| 4123 | if (FRAME_WINDOW_P (f)) |
| 4124 | { |
| 4125 | /* Free fontset of FACE if it is ASCII face. */ |
| 4126 | if (face->fontset >= 0 && face == face->ascii_face) |
| 4127 | free_face_fontset (f, face); |
| 4128 | if (face->gc) |
| 4129 | { |
| 4130 | BLOCK_INPUT; |
| 4131 | if (face->font) |
| 4132 | font_done_for_face (f, face); |
| 4133 | x_free_gc (f, face->gc); |
| 4134 | face->gc = 0; |
| 4135 | UNBLOCK_INPUT; |
| 4136 | } |
| 4137 | |
| 4138 | free_face_colors (f, face); |
| 4139 | x_destroy_bitmap (f, face->stipple); |
| 4140 | } |
| 4141 | #endif /* HAVE_WINDOW_SYSTEM */ |
| 4142 | |
| 4143 | xfree (face); |
| 4144 | } |
| 4145 | } |
| 4146 | |
| 4147 | |
| 4148 | /* Prepare face FACE for subsequent display on frame F. This |
| 4149 | allocated GCs if they haven't been allocated yet or have been freed |
| 4150 | by clearing the face cache. */ |
| 4151 | |
| 4152 | void |
| 4153 | prepare_face_for_display (struct frame *f, struct face *face) |
| 4154 | { |
| 4155 | #ifdef HAVE_WINDOW_SYSTEM |
| 4156 | xassert (FRAME_WINDOW_P (f)); |
| 4157 | |
| 4158 | if (face->gc == 0) |
| 4159 | { |
| 4160 | XGCValues xgcv; |
| 4161 | unsigned long mask = GCForeground | GCBackground | GCGraphicsExposures; |
| 4162 | |
| 4163 | xgcv.foreground = face->foreground; |
| 4164 | xgcv.background = face->background; |
| 4165 | #ifdef HAVE_X_WINDOWS |
| 4166 | xgcv.graphics_exposures = False; |
| 4167 | #endif |
| 4168 | |
| 4169 | BLOCK_INPUT; |
| 4170 | #ifdef HAVE_X_WINDOWS |
| 4171 | if (face->stipple) |
| 4172 | { |
| 4173 | xgcv.fill_style = FillOpaqueStippled; |
| 4174 | xgcv.stipple = x_bitmap_pixmap (f, face->stipple); |
| 4175 | mask |= GCFillStyle | GCStipple; |
| 4176 | } |
| 4177 | #endif |
| 4178 | face->gc = x_create_gc (f, mask, &xgcv); |
| 4179 | if (face->font) |
| 4180 | font_prepare_for_face (f, face); |
| 4181 | UNBLOCK_INPUT; |
| 4182 | } |
| 4183 | #endif /* HAVE_WINDOW_SYSTEM */ |
| 4184 | } |
| 4185 | |
| 4186 | \f |
| 4187 | /* Returns the `distance' between the colors X and Y. */ |
| 4188 | |
| 4189 | static int |
| 4190 | color_distance (XColor *x, XColor *y) |
| 4191 | { |
| 4192 | /* This formula is from a paper titled `Colour metric' by Thiadmer Riemersma. |
| 4193 | Quoting from that paper: |
| 4194 | |
| 4195 | This formula has results that are very close to L*u*v* (with the |
| 4196 | modified lightness curve) and, more importantly, it is a more even |
| 4197 | algorithm: it does not have a range of colors where it suddenly |
| 4198 | gives far from optimal results. |
| 4199 | |
| 4200 | See <http://www.compuphase.com/cmetric.htm> for more info. */ |
| 4201 | |
| 4202 | long r = (x->red - y->red) >> 8; |
| 4203 | long g = (x->green - y->green) >> 8; |
| 4204 | long b = (x->blue - y->blue) >> 8; |
| 4205 | long r_mean = (x->red + y->red) >> 9; |
| 4206 | |
| 4207 | return |
| 4208 | (((512 + r_mean) * r * r) >> 8) |
| 4209 | + 4 * g * g |
| 4210 | + (((767 - r_mean) * b * b) >> 8); |
| 4211 | } |
| 4212 | |
| 4213 | |
| 4214 | DEFUN ("color-distance", Fcolor_distance, Scolor_distance, 2, 3, 0, |
| 4215 | doc: /* Return an integer distance between COLOR1 and COLOR2 on FRAME. |
| 4216 | COLOR1 and COLOR2 may be either strings containing the color name, |
| 4217 | or lists of the form (RED GREEN BLUE). |
| 4218 | If FRAME is unspecified or nil, the current frame is used. */) |
| 4219 | (Lisp_Object color1, Lisp_Object color2, Lisp_Object frame) |
| 4220 | { |
| 4221 | struct frame *f; |
| 4222 | XColor cdef1, cdef2; |
| 4223 | |
| 4224 | if (NILP (frame)) |
| 4225 | frame = selected_frame; |
| 4226 | CHECK_LIVE_FRAME (frame); |
| 4227 | f = XFRAME (frame); |
| 4228 | |
| 4229 | if (!(CONSP (color1) && parse_rgb_list (color1, &cdef1)) |
| 4230 | && !(STRINGP (color1) && defined_color (f, SSDATA (color1), &cdef1, 0))) |
| 4231 | signal_error ("Invalid color", color1); |
| 4232 | if (!(CONSP (color2) && parse_rgb_list (color2, &cdef2)) |
| 4233 | && !(STRINGP (color2) && defined_color (f, SSDATA (color2), &cdef2, 0))) |
| 4234 | signal_error ("Invalid color", color2); |
| 4235 | |
| 4236 | return make_number (color_distance (&cdef1, &cdef2)); |
| 4237 | } |
| 4238 | |
| 4239 | \f |
| 4240 | /*********************************************************************** |
| 4241 | Face Cache |
| 4242 | ***********************************************************************/ |
| 4243 | |
| 4244 | /* Return a new face cache for frame F. */ |
| 4245 | |
| 4246 | static struct face_cache * |
| 4247 | make_face_cache (struct frame *f) |
| 4248 | { |
| 4249 | struct face_cache *c; |
| 4250 | int size; |
| 4251 | |
| 4252 | c = (struct face_cache *) xmalloc (sizeof *c); |
| 4253 | memset (c, 0, sizeof *c); |
| 4254 | size = FACE_CACHE_BUCKETS_SIZE * sizeof *c->buckets; |
| 4255 | c->buckets = (struct face **) xmalloc (size); |
| 4256 | memset (c->buckets, 0, size); |
| 4257 | c->size = 50; |
| 4258 | c->faces_by_id = (struct face **) xmalloc (c->size * sizeof *c->faces_by_id); |
| 4259 | c->f = f; |
| 4260 | c->menu_face_changed_p = menu_face_changed_default; |
| 4261 | return c; |
| 4262 | } |
| 4263 | |
| 4264 | |
| 4265 | /* Clear out all graphics contexts for all realized faces, except for |
| 4266 | the basic faces. This should be done from time to time just to avoid |
| 4267 | keeping too many graphics contexts that are no longer needed. */ |
| 4268 | |
| 4269 | static void |
| 4270 | clear_face_gcs (struct face_cache *c) |
| 4271 | { |
| 4272 | if (c && FRAME_WINDOW_P (c->f)) |
| 4273 | { |
| 4274 | #ifdef HAVE_WINDOW_SYSTEM |
| 4275 | int i; |
| 4276 | for (i = BASIC_FACE_ID_SENTINEL; i < c->used; ++i) |
| 4277 | { |
| 4278 | struct face *face = c->faces_by_id[i]; |
| 4279 | if (face && face->gc) |
| 4280 | { |
| 4281 | BLOCK_INPUT; |
| 4282 | if (face->font) |
| 4283 | font_done_for_face (c->f, face); |
| 4284 | x_free_gc (c->f, face->gc); |
| 4285 | face->gc = 0; |
| 4286 | UNBLOCK_INPUT; |
| 4287 | } |
| 4288 | } |
| 4289 | #endif /* HAVE_WINDOW_SYSTEM */ |
| 4290 | } |
| 4291 | } |
| 4292 | |
| 4293 | |
| 4294 | /* Free all realized faces in face cache C, including basic faces. |
| 4295 | C may be null. If faces are freed, make sure the frame's current |
| 4296 | matrix is marked invalid, so that a display caused by an expose |
| 4297 | event doesn't try to use faces we destroyed. */ |
| 4298 | |
| 4299 | static void |
| 4300 | free_realized_faces (struct face_cache *c) |
| 4301 | { |
| 4302 | if (c && c->used) |
| 4303 | { |
| 4304 | int i, size; |
| 4305 | struct frame *f = c->f; |
| 4306 | |
| 4307 | /* We must block input here because we can't process X events |
| 4308 | safely while only some faces are freed, or when the frame's |
| 4309 | current matrix still references freed faces. */ |
| 4310 | BLOCK_INPUT; |
| 4311 | |
| 4312 | for (i = 0; i < c->used; ++i) |
| 4313 | { |
| 4314 | free_realized_face (f, c->faces_by_id[i]); |
| 4315 | c->faces_by_id[i] = NULL; |
| 4316 | } |
| 4317 | |
| 4318 | c->used = 0; |
| 4319 | size = FACE_CACHE_BUCKETS_SIZE * sizeof *c->buckets; |
| 4320 | memset (c->buckets, 0, size); |
| 4321 | |
| 4322 | /* Must do a thorough redisplay the next time. Mark current |
| 4323 | matrices as invalid because they will reference faces freed |
| 4324 | above. This function is also called when a frame is |
| 4325 | destroyed. In this case, the root window of F is nil. */ |
| 4326 | if (WINDOWP (f->root_window)) |
| 4327 | { |
| 4328 | clear_current_matrices (f); |
| 4329 | ++windows_or_buffers_changed; |
| 4330 | } |
| 4331 | |
| 4332 | UNBLOCK_INPUT; |
| 4333 | } |
| 4334 | } |
| 4335 | |
| 4336 | |
| 4337 | /* Free all realized faces on FRAME or on all frames if FRAME is nil. |
| 4338 | This is done after attributes of a named face have been changed, |
| 4339 | because we can't tell which realized faces depend on that face. */ |
| 4340 | |
| 4341 | void |
| 4342 | free_all_realized_faces (Lisp_Object frame) |
| 4343 | { |
| 4344 | if (NILP (frame)) |
| 4345 | { |
| 4346 | Lisp_Object rest; |
| 4347 | FOR_EACH_FRAME (rest, frame) |
| 4348 | free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame))); |
| 4349 | } |
| 4350 | else |
| 4351 | free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame))); |
| 4352 | } |
| 4353 | |
| 4354 | |
| 4355 | /* Free face cache C and faces in it, including their X resources. */ |
| 4356 | |
| 4357 | static void |
| 4358 | free_face_cache (struct face_cache *c) |
| 4359 | { |
| 4360 | if (c) |
| 4361 | { |
| 4362 | free_realized_faces (c); |
| 4363 | xfree (c->buckets); |
| 4364 | xfree (c->faces_by_id); |
| 4365 | xfree (c); |
| 4366 | } |
| 4367 | } |
| 4368 | |
| 4369 | |
| 4370 | /* Cache realized face FACE in face cache C. HASH is the hash value |
| 4371 | of FACE. If FACE is for ASCII characters (i.e. FACE->ascii_face == |
| 4372 | FACE), insert the new face to the beginning of the collision list |
| 4373 | of the face hash table of C. Otherwise, add the new face to the |
| 4374 | end of the collision list. This way, lookup_face can quickly find |
| 4375 | that a requested face is not cached. */ |
| 4376 | |
| 4377 | static void |
| 4378 | cache_face (struct face_cache *c, struct face *face, unsigned int hash) |
| 4379 | { |
| 4380 | int i = hash % FACE_CACHE_BUCKETS_SIZE; |
| 4381 | |
| 4382 | face->hash = hash; |
| 4383 | |
| 4384 | if (face->ascii_face != face) |
| 4385 | { |
| 4386 | struct face *last = c->buckets[i]; |
| 4387 | if (last) |
| 4388 | { |
| 4389 | while (last->next) |
| 4390 | last = last->next; |
| 4391 | last->next = face; |
| 4392 | face->prev = last; |
| 4393 | face->next = NULL; |
| 4394 | } |
| 4395 | else |
| 4396 | { |
| 4397 | c->buckets[i] = face; |
| 4398 | face->prev = face->next = NULL; |
| 4399 | } |
| 4400 | } |
| 4401 | else |
| 4402 | { |
| 4403 | face->prev = NULL; |
| 4404 | face->next = c->buckets[i]; |
| 4405 | if (face->next) |
| 4406 | face->next->prev = face; |
| 4407 | c->buckets[i] = face; |
| 4408 | } |
| 4409 | |
| 4410 | /* Find a free slot in C->faces_by_id and use the index of the free |
| 4411 | slot as FACE->id. */ |
| 4412 | for (i = 0; i < c->used; ++i) |
| 4413 | if (c->faces_by_id[i] == NULL) |
| 4414 | break; |
| 4415 | face->id = i; |
| 4416 | |
| 4417 | #if GLYPH_DEBUG |
| 4418 | /* Check that FACE got a unique id. */ |
| 4419 | { |
| 4420 | int j, n; |
| 4421 | struct face *face1; |
| 4422 | |
| 4423 | for (j = n = 0; j < FACE_CACHE_BUCKETS_SIZE; ++j) |
| 4424 | for (face1 = c->buckets[j]; face1; face1 = face1->next) |
| 4425 | if (face1->id == i) |
| 4426 | ++n; |
| 4427 | |
| 4428 | xassert (n == 1); |
| 4429 | } |
| 4430 | #endif /* GLYPH_DEBUG */ |
| 4431 | |
| 4432 | /* Maybe enlarge C->faces_by_id. */ |
| 4433 | if (i == c->used) |
| 4434 | { |
| 4435 | if (c->used == c->size) |
| 4436 | c->faces_by_id = xpalloc (c->faces_by_id, &c->size, 1, MAX_FACE_ID, |
| 4437 | sizeof *c->faces_by_id); |
| 4438 | c->used++; |
| 4439 | } |
| 4440 | |
| 4441 | c->faces_by_id[i] = face; |
| 4442 | } |
| 4443 | |
| 4444 | |
| 4445 | /* Remove face FACE from cache C. */ |
| 4446 | |
| 4447 | static void |
| 4448 | uncache_face (struct face_cache *c, struct face *face) |
| 4449 | { |
| 4450 | int i = face->hash % FACE_CACHE_BUCKETS_SIZE; |
| 4451 | |
| 4452 | if (face->prev) |
| 4453 | face->prev->next = face->next; |
| 4454 | else |
| 4455 | c->buckets[i] = face->next; |
| 4456 | |
| 4457 | if (face->next) |
| 4458 | face->next->prev = face->prev; |
| 4459 | |
| 4460 | c->faces_by_id[face->id] = NULL; |
| 4461 | if (face->id == c->used) |
| 4462 | --c->used; |
| 4463 | } |
| 4464 | |
| 4465 | |
| 4466 | /* Look up a realized face with face attributes ATTR in the face cache |
| 4467 | of frame F. The face will be used to display ASCII characters. |
| 4468 | Value is the ID of the face found. If no suitable face is found, |
| 4469 | realize a new one. */ |
| 4470 | |
| 4471 | static inline int |
| 4472 | lookup_face (struct frame *f, Lisp_Object *attr) |
| 4473 | { |
| 4474 | struct face_cache *cache = FRAME_FACE_CACHE (f); |
| 4475 | unsigned hash; |
| 4476 | int i; |
| 4477 | struct face *face; |
| 4478 | |
| 4479 | xassert (cache != NULL); |
| 4480 | check_lface_attrs (attr); |
| 4481 | |
| 4482 | /* Look up ATTR in the face cache. */ |
| 4483 | hash = lface_hash (attr); |
| 4484 | i = hash % FACE_CACHE_BUCKETS_SIZE; |
| 4485 | |
| 4486 | for (face = cache->buckets[i]; face; face = face->next) |
| 4487 | { |
| 4488 | if (face->ascii_face != face) |
| 4489 | { |
| 4490 | /* There's no more ASCII face. */ |
| 4491 | face = NULL; |
| 4492 | break; |
| 4493 | } |
| 4494 | if (face->hash == hash |
| 4495 | && lface_equal_p (face->lface, attr)) |
| 4496 | break; |
| 4497 | } |
| 4498 | |
| 4499 | /* If not found, realize a new face. */ |
| 4500 | if (face == NULL) |
| 4501 | face = realize_face (cache, attr, -1); |
| 4502 | |
| 4503 | #if GLYPH_DEBUG |
| 4504 | xassert (face == FACE_FROM_ID (f, face->id)); |
| 4505 | #endif /* GLYPH_DEBUG */ |
| 4506 | |
| 4507 | return face->id; |
| 4508 | } |
| 4509 | |
| 4510 | #ifdef HAVE_WINDOW_SYSTEM |
| 4511 | /* Look up a realized face that has the same attributes as BASE_FACE |
| 4512 | except for the font in the face cache of frame F. If FONT-OBJECT |
| 4513 | is not nil, it is an already opened font. If FONT-OBJECT is nil, |
| 4514 | the face has no font. Value is the ID of the face found. If no |
| 4515 | suitable face is found, realize a new one. */ |
| 4516 | |
| 4517 | int |
| 4518 | face_for_font (struct frame *f, Lisp_Object font_object, struct face *base_face) |
| 4519 | { |
| 4520 | struct face_cache *cache = FRAME_FACE_CACHE (f); |
| 4521 | unsigned hash; |
| 4522 | int i; |
| 4523 | struct face *face; |
| 4524 | |
| 4525 | xassert (cache != NULL); |
| 4526 | base_face = base_face->ascii_face; |
| 4527 | hash = lface_hash (base_face->lface); |
| 4528 | i = hash % FACE_CACHE_BUCKETS_SIZE; |
| 4529 | |
| 4530 | for (face = cache->buckets[i]; face; face = face->next) |
| 4531 | { |
| 4532 | if (face->ascii_face == face) |
| 4533 | continue; |
| 4534 | if (face->ascii_face == base_face |
| 4535 | && face->font == (NILP (font_object) ? NULL |
| 4536 | : XFONT_OBJECT (font_object)) |
| 4537 | && lface_equal_p (face->lface, base_face->lface)) |
| 4538 | return face->id; |
| 4539 | } |
| 4540 | |
| 4541 | /* If not found, realize a new face. */ |
| 4542 | face = realize_non_ascii_face (f, font_object, base_face); |
| 4543 | return face->id; |
| 4544 | } |
| 4545 | #endif /* HAVE_WINDOW_SYSTEM */ |
| 4546 | |
| 4547 | /* Return the face id of the realized face for named face SYMBOL on |
| 4548 | frame F suitable for displaying ASCII characters. Value is -1 if |
| 4549 | the face couldn't be determined, which might happen if the default |
| 4550 | face isn't realized and cannot be realized. */ |
| 4551 | |
| 4552 | int |
| 4553 | lookup_named_face (struct frame *f, Lisp_Object symbol, int signal_p) |
| 4554 | { |
| 4555 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
| 4556 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; |
| 4557 | struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
| 4558 | |
| 4559 | if (default_face == NULL) |
| 4560 | { |
| 4561 | if (!realize_basic_faces (f)) |
| 4562 | return -1; |
| 4563 | default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
| 4564 | if (default_face == NULL) |
| 4565 | abort (); /* realize_basic_faces must have set it up */ |
| 4566 | } |
| 4567 | |
| 4568 | if (! get_lface_attributes (f, symbol, symbol_attrs, signal_p, 0)) |
| 4569 | return -1; |
| 4570 | |
| 4571 | memcpy (attrs, default_face->lface, sizeof attrs); |
| 4572 | merge_face_vectors (f, symbol_attrs, attrs, 0); |
| 4573 | |
| 4574 | return lookup_face (f, attrs); |
| 4575 | } |
| 4576 | |
| 4577 | |
| 4578 | /* Return the display face-id of the basic face who's canonical face-id |
| 4579 | is FACE_ID. The return value will usually simply be FACE_ID, unless that |
| 4580 | basic face has bee remapped via Vface_remapping_alist. This function is |
| 4581 | conservative: if something goes wrong, it will simply return FACE_ID |
| 4582 | rather than signal an error. */ |
| 4583 | |
| 4584 | int |
| 4585 | lookup_basic_face (struct frame *f, int face_id) |
| 4586 | { |
| 4587 | Lisp_Object name, mapping; |
| 4588 | int remapped_face_id; |
| 4589 | |
| 4590 | if (NILP (Vface_remapping_alist)) |
| 4591 | return face_id; /* Nothing to do. */ |
| 4592 | |
| 4593 | switch (face_id) |
| 4594 | { |
| 4595 | case DEFAULT_FACE_ID: name = Qdefault; break; |
| 4596 | case MODE_LINE_FACE_ID: name = Qmode_line; break; |
| 4597 | case MODE_LINE_INACTIVE_FACE_ID: name = Qmode_line_inactive; break; |
| 4598 | case HEADER_LINE_FACE_ID: name = Qheader_line; break; |
| 4599 | case TOOL_BAR_FACE_ID: name = Qtool_bar; break; |
| 4600 | case FRINGE_FACE_ID: name = Qfringe; break; |
| 4601 | case SCROLL_BAR_FACE_ID: name = Qscroll_bar; break; |
| 4602 | case BORDER_FACE_ID: name = Qborder; break; |
| 4603 | case CURSOR_FACE_ID: name = Qcursor; break; |
| 4604 | case MOUSE_FACE_ID: name = Qmouse; break; |
| 4605 | case MENU_FACE_ID: name = Qmenu; break; |
| 4606 | |
| 4607 | default: |
| 4608 | abort (); /* the caller is supposed to pass us a basic face id */ |
| 4609 | } |
| 4610 | |
| 4611 | /* Do a quick scan through Vface_remapping_alist, and return immediately |
| 4612 | if there is no remapping for face NAME. This is just an optimization |
| 4613 | for the very common no-remapping case. */ |
| 4614 | mapping = assq_no_quit (name, Vface_remapping_alist); |
| 4615 | if (NILP (mapping)) |
| 4616 | return face_id; /* Give up. */ |
| 4617 | |
| 4618 | /* If there is a remapping entry, lookup the face using NAME, which will |
| 4619 | handle the remapping too. */ |
| 4620 | remapped_face_id = lookup_named_face (f, name, 0); |
| 4621 | if (remapped_face_id < 0) |
| 4622 | return face_id; /* Give up. */ |
| 4623 | |
| 4624 | return remapped_face_id; |
| 4625 | } |
| 4626 | |
| 4627 | |
| 4628 | /* Return a face for charset ASCII that is like the face with id |
| 4629 | FACE_ID on frame F, but has a font that is STEPS steps smaller. |
| 4630 | STEPS < 0 means larger. Value is the id of the face. */ |
| 4631 | |
| 4632 | int |
| 4633 | smaller_face (struct frame *f, int face_id, int steps) |
| 4634 | { |
| 4635 | #ifdef HAVE_WINDOW_SYSTEM |
| 4636 | struct face *face; |
| 4637 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
| 4638 | int pt, last_pt, last_height; |
| 4639 | int delta; |
| 4640 | int new_face_id; |
| 4641 | struct face *new_face; |
| 4642 | |
| 4643 | /* If not called for an X frame, just return the original face. */ |
| 4644 | if (FRAME_TERMCAP_P (f)) |
| 4645 | return face_id; |
| 4646 | |
| 4647 | /* Try in increments of 1/2 pt. */ |
| 4648 | delta = steps < 0 ? 5 : -5; |
| 4649 | steps = eabs (steps); |
| 4650 | |
| 4651 | face = FACE_FROM_ID (f, face_id); |
| 4652 | memcpy (attrs, face->lface, sizeof attrs); |
| 4653 | pt = last_pt = XFASTINT (attrs[LFACE_HEIGHT_INDEX]); |
| 4654 | new_face_id = face_id; |
| 4655 | last_height = FONT_HEIGHT (face->font); |
| 4656 | |
| 4657 | while (steps |
| 4658 | && pt + delta > 0 |
| 4659 | /* Give up if we cannot find a font within 10pt. */ |
| 4660 | && eabs (last_pt - pt) < 100) |
| 4661 | { |
| 4662 | /* Look up a face for a slightly smaller/larger font. */ |
| 4663 | pt += delta; |
| 4664 | attrs[LFACE_HEIGHT_INDEX] = make_number (pt); |
| 4665 | new_face_id = lookup_face (f, attrs); |
| 4666 | new_face = FACE_FROM_ID (f, new_face_id); |
| 4667 | |
| 4668 | /* If height changes, count that as one step. */ |
| 4669 | if ((delta < 0 && FONT_HEIGHT (new_face->font) < last_height) |
| 4670 | || (delta > 0 && FONT_HEIGHT (new_face->font) > last_height)) |
| 4671 | { |
| 4672 | --steps; |
| 4673 | last_height = FONT_HEIGHT (new_face->font); |
| 4674 | last_pt = pt; |
| 4675 | } |
| 4676 | } |
| 4677 | |
| 4678 | return new_face_id; |
| 4679 | |
| 4680 | #else /* not HAVE_WINDOW_SYSTEM */ |
| 4681 | |
| 4682 | return face_id; |
| 4683 | |
| 4684 | #endif /* not HAVE_WINDOW_SYSTEM */ |
| 4685 | } |
| 4686 | |
| 4687 | |
| 4688 | /* Return a face for charset ASCII that is like the face with id |
| 4689 | FACE_ID on frame F, but has height HEIGHT. */ |
| 4690 | |
| 4691 | int |
| 4692 | face_with_height (struct frame *f, int face_id, int height) |
| 4693 | { |
| 4694 | #ifdef HAVE_WINDOW_SYSTEM |
| 4695 | struct face *face; |
| 4696 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
| 4697 | |
| 4698 | if (FRAME_TERMCAP_P (f) |
| 4699 | || height <= 0) |
| 4700 | return face_id; |
| 4701 | |
| 4702 | face = FACE_FROM_ID (f, face_id); |
| 4703 | memcpy (attrs, face->lface, sizeof attrs); |
| 4704 | attrs[LFACE_HEIGHT_INDEX] = make_number (height); |
| 4705 | font_clear_prop (attrs, FONT_SIZE_INDEX); |
| 4706 | face_id = lookup_face (f, attrs); |
| 4707 | #endif /* HAVE_WINDOW_SYSTEM */ |
| 4708 | |
| 4709 | return face_id; |
| 4710 | } |
| 4711 | |
| 4712 | |
| 4713 | /* Return the face id of the realized face for named face SYMBOL on |
| 4714 | frame F suitable for displaying ASCII characters, and use |
| 4715 | attributes of the face FACE_ID for attributes that aren't |
| 4716 | completely specified by SYMBOL. This is like lookup_named_face, |
| 4717 | except that the default attributes come from FACE_ID, not from the |
| 4718 | default face. FACE_ID is assumed to be already realized. */ |
| 4719 | |
| 4720 | int |
| 4721 | lookup_derived_face (struct frame *f, Lisp_Object symbol, int face_id, |
| 4722 | int signal_p) |
| 4723 | { |
| 4724 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
| 4725 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; |
| 4726 | struct face *default_face = FACE_FROM_ID (f, face_id); |
| 4727 | |
| 4728 | if (!default_face) |
| 4729 | abort (); |
| 4730 | |
| 4731 | if (!get_lface_attributes (f, symbol, symbol_attrs, signal_p, 0)) |
| 4732 | return -1; |
| 4733 | |
| 4734 | memcpy (attrs, default_face->lface, sizeof attrs); |
| 4735 | merge_face_vectors (f, symbol_attrs, attrs, 0); |
| 4736 | return lookup_face (f, attrs); |
| 4737 | } |
| 4738 | |
| 4739 | DEFUN ("face-attributes-as-vector", Fface_attributes_as_vector, |
| 4740 | Sface_attributes_as_vector, 1, 1, 0, |
| 4741 | doc: /* Return a vector of face attributes corresponding to PLIST. */) |
| 4742 | (Lisp_Object plist) |
| 4743 | { |
| 4744 | Lisp_Object lface; |
| 4745 | lface = Fmake_vector (make_number (LFACE_VECTOR_SIZE), |
| 4746 | Qunspecified); |
| 4747 | merge_face_ref (XFRAME (selected_frame), plist, XVECTOR (lface)->contents, |
| 4748 | 1, 0); |
| 4749 | return lface; |
| 4750 | } |
| 4751 | |
| 4752 | |
| 4753 | \f |
| 4754 | /*********************************************************************** |
| 4755 | Face capability testing |
| 4756 | ***********************************************************************/ |
| 4757 | |
| 4758 | |
| 4759 | /* If the distance (as returned by color_distance) between two colors is |
| 4760 | less than this, then they are considered the same, for determining |
| 4761 | whether a color is supported or not. The range of values is 0-65535. */ |
| 4762 | |
| 4763 | #define TTY_SAME_COLOR_THRESHOLD 10000 |
| 4764 | |
| 4765 | #ifdef HAVE_WINDOW_SYSTEM |
| 4766 | |
| 4767 | /* Return non-zero if all the face attributes in ATTRS are supported |
| 4768 | on the window-system frame F. |
| 4769 | |
| 4770 | The definition of `supported' is somewhat heuristic, but basically means |
| 4771 | that a face containing all the attributes in ATTRS, when merged with the |
| 4772 | default face for display, can be represented in a way that's |
| 4773 | |
| 4774 | \(1) different in appearance than the default face, and |
| 4775 | \(2) `close in spirit' to what the attributes specify, if not exact. */ |
| 4776 | |
| 4777 | static int |
| 4778 | x_supports_face_attributes_p (struct frame *f, Lisp_Object *attrs, |
| 4779 | struct face *def_face) |
| 4780 | { |
| 4781 | Lisp_Object *def_attrs = def_face->lface; |
| 4782 | |
| 4783 | /* Check that other specified attributes are different that the default |
| 4784 | face. */ |
| 4785 | if ((!UNSPECIFIEDP (attrs[LFACE_UNDERLINE_INDEX]) |
| 4786 | && face_attr_equal_p (attrs[LFACE_UNDERLINE_INDEX], |
| 4787 | def_attrs[LFACE_UNDERLINE_INDEX])) |
| 4788 | || (!UNSPECIFIEDP (attrs[LFACE_INVERSE_INDEX]) |
| 4789 | && face_attr_equal_p (attrs[LFACE_INVERSE_INDEX], |
| 4790 | def_attrs[LFACE_INVERSE_INDEX])) |
| 4791 | || (!UNSPECIFIEDP (attrs[LFACE_FOREGROUND_INDEX]) |
| 4792 | && face_attr_equal_p (attrs[LFACE_FOREGROUND_INDEX], |
| 4793 | def_attrs[LFACE_FOREGROUND_INDEX])) |
| 4794 | || (!UNSPECIFIEDP (attrs[LFACE_BACKGROUND_INDEX]) |
| 4795 | && face_attr_equal_p (attrs[LFACE_BACKGROUND_INDEX], |
| 4796 | def_attrs[LFACE_BACKGROUND_INDEX])) |
| 4797 | || (!UNSPECIFIEDP (attrs[LFACE_STIPPLE_INDEX]) |
| 4798 | && face_attr_equal_p (attrs[LFACE_STIPPLE_INDEX], |
| 4799 | def_attrs[LFACE_STIPPLE_INDEX])) |
| 4800 | || (!UNSPECIFIEDP (attrs[LFACE_OVERLINE_INDEX]) |
| 4801 | && face_attr_equal_p (attrs[LFACE_OVERLINE_INDEX], |
| 4802 | def_attrs[LFACE_OVERLINE_INDEX])) |
| 4803 | || (!UNSPECIFIEDP (attrs[LFACE_STRIKE_THROUGH_INDEX]) |
| 4804 | && face_attr_equal_p (attrs[LFACE_STRIKE_THROUGH_INDEX], |
| 4805 | def_attrs[LFACE_STRIKE_THROUGH_INDEX])) |
| 4806 | || (!UNSPECIFIEDP (attrs[LFACE_BOX_INDEX]) |
| 4807 | && face_attr_equal_p (attrs[LFACE_BOX_INDEX], |
| 4808 | def_attrs[LFACE_BOX_INDEX]))) |
| 4809 | return 0; |
| 4810 | |
| 4811 | /* Check font-related attributes, as those are the most commonly |
| 4812 | "unsupported" on a window-system (because of missing fonts). */ |
| 4813 | if (!UNSPECIFIEDP (attrs[LFACE_FAMILY_INDEX]) |
| 4814 | || !UNSPECIFIEDP (attrs[LFACE_FOUNDRY_INDEX]) |
| 4815 | || !UNSPECIFIEDP (attrs[LFACE_HEIGHT_INDEX]) |
| 4816 | || !UNSPECIFIEDP (attrs[LFACE_WEIGHT_INDEX]) |
| 4817 | || !UNSPECIFIEDP (attrs[LFACE_SLANT_INDEX]) |
| 4818 | || !UNSPECIFIEDP (attrs[LFACE_SWIDTH_INDEX])) |
| 4819 | { |
| 4820 | int face_id; |
| 4821 | struct face *face; |
| 4822 | Lisp_Object merged_attrs[LFACE_VECTOR_SIZE]; |
| 4823 | int i; |
| 4824 | |
| 4825 | memcpy (merged_attrs, def_attrs, sizeof merged_attrs); |
| 4826 | |
| 4827 | merge_face_vectors (f, attrs, merged_attrs, 0); |
| 4828 | |
| 4829 | face_id = lookup_face (f, merged_attrs); |
| 4830 | face = FACE_FROM_ID (f, face_id); |
| 4831 | |
| 4832 | if (! face) |
| 4833 | error ("Cannot make face"); |
| 4834 | |
| 4835 | /* If the font is the same, or no font is found, then not |
| 4836 | supported. */ |
| 4837 | if (face->font == def_face->font |
| 4838 | || ! face->font) |
| 4839 | return 0; |
| 4840 | for (i = FONT_TYPE_INDEX; i <= FONT_SIZE_INDEX; i++) |
| 4841 | if (! EQ (face->font->props[i], def_face->font->props[i])) |
| 4842 | { |
| 4843 | Lisp_Object s1, s2; |
| 4844 | |
| 4845 | if (i < FONT_FOUNDRY_INDEX || i > FONT_REGISTRY_INDEX |
| 4846 | || face->font->driver->case_sensitive) |
| 4847 | return 1; |
| 4848 | s1 = SYMBOL_NAME (face->font->props[i]); |
| 4849 | s2 = SYMBOL_NAME (def_face->font->props[i]); |
| 4850 | if (! EQ (Fcompare_strings (s1, make_number (0), Qnil, |
| 4851 | s2, make_number (0), Qnil, Qt), Qt)) |
| 4852 | return 1; |
| 4853 | } |
| 4854 | return 0; |
| 4855 | } |
| 4856 | |
| 4857 | /* Everything checks out, this face is supported. */ |
| 4858 | return 1; |
| 4859 | } |
| 4860 | |
| 4861 | #endif /* HAVE_WINDOW_SYSTEM */ |
| 4862 | |
| 4863 | /* Return non-zero if all the face attributes in ATTRS are supported |
| 4864 | on the tty frame F. |
| 4865 | |
| 4866 | The definition of `supported' is somewhat heuristic, but basically means |
| 4867 | that a face containing all the attributes in ATTRS, when merged |
| 4868 | with the default face for display, can be represented in a way that's |
| 4869 | |
| 4870 | \(1) different in appearance than the default face, and |
| 4871 | \(2) `close in spirit' to what the attributes specify, if not exact. |
| 4872 | |
| 4873 | Point (2) implies that a `:weight black' attribute will be satisfied |
| 4874 | by any terminal that can display bold, and a `:foreground "yellow"' as |
| 4875 | long as the terminal can display a yellowish color, but `:slant italic' |
| 4876 | will _not_ be satisfied by the tty display code's automatic |
| 4877 | substitution of a `dim' face for italic. */ |
| 4878 | |
| 4879 | static int |
| 4880 | tty_supports_face_attributes_p (struct frame *f, Lisp_Object *attrs, |
| 4881 | struct face *def_face) |
| 4882 | { |
| 4883 | int weight; |
| 4884 | Lisp_Object val, fg, bg; |
| 4885 | XColor fg_tty_color, fg_std_color; |
| 4886 | XColor bg_tty_color, bg_std_color; |
| 4887 | unsigned test_caps = 0; |
| 4888 | Lisp_Object *def_attrs = def_face->lface; |
| 4889 | |
| 4890 | |
| 4891 | /* First check some easy-to-check stuff; ttys support none of the |
| 4892 | following attributes, so we can just return false if any are requested |
| 4893 | (even if `nominal' values are specified, we should still return false, |
| 4894 | as that will be the same value that the default face uses). We |
| 4895 | consider :slant unsupportable on ttys, even though the face code |
| 4896 | actually `fakes' them using a dim attribute if possible. This is |
| 4897 | because the faked result is too different from what the face |
| 4898 | specifies. */ |
| 4899 | if (!UNSPECIFIEDP (attrs[LFACE_FAMILY_INDEX]) |
| 4900 | || !UNSPECIFIEDP (attrs[LFACE_FOUNDRY_INDEX]) |
| 4901 | || !UNSPECIFIEDP (attrs[LFACE_STIPPLE_INDEX]) |
| 4902 | || !UNSPECIFIEDP (attrs[LFACE_HEIGHT_INDEX]) |
| 4903 | || !UNSPECIFIEDP (attrs[LFACE_SWIDTH_INDEX]) |
| 4904 | || !UNSPECIFIEDP (attrs[LFACE_OVERLINE_INDEX]) |
| 4905 | || !UNSPECIFIEDP (attrs[LFACE_STRIKE_THROUGH_INDEX]) |
| 4906 | || !UNSPECIFIEDP (attrs[LFACE_BOX_INDEX]) |
| 4907 | || !UNSPECIFIEDP (attrs[LFACE_SLANT_INDEX])) |
| 4908 | return 0; |
| 4909 | |
| 4910 | |
| 4911 | /* Test for terminal `capabilities' (non-color character attributes). */ |
| 4912 | |
| 4913 | /* font weight (bold/dim) */ |
| 4914 | val = attrs[LFACE_WEIGHT_INDEX]; |
| 4915 | if (!UNSPECIFIEDP (val) |
| 4916 | && (weight = FONT_WEIGHT_NAME_NUMERIC (val), weight >= 0)) |
| 4917 | { |
| 4918 | int def_weight = FONT_WEIGHT_NAME_NUMERIC (def_attrs[LFACE_WEIGHT_INDEX]); |
| 4919 | |
| 4920 | if (weight > 100) |
| 4921 | { |
| 4922 | if (def_weight > 100) |
| 4923 | return 0; /* same as default */ |
| 4924 | test_caps = TTY_CAP_BOLD; |
| 4925 | } |
| 4926 | else if (weight < 100) |
| 4927 | { |
| 4928 | if (def_weight < 100) |
| 4929 | return 0; /* same as default */ |
| 4930 | test_caps = TTY_CAP_DIM; |
| 4931 | } |
| 4932 | else if (def_weight == 100) |
| 4933 | return 0; /* same as default */ |
| 4934 | } |
| 4935 | |
| 4936 | /* underlining */ |
| 4937 | val = attrs[LFACE_UNDERLINE_INDEX]; |
| 4938 | if (!UNSPECIFIEDP (val)) |
| 4939 | { |
| 4940 | if (STRINGP (val)) |
| 4941 | return 0; /* ttys can't use colored underlines */ |
| 4942 | else if (face_attr_equal_p (val, def_attrs[LFACE_UNDERLINE_INDEX])) |
| 4943 | return 0; /* same as default */ |
| 4944 | else |
| 4945 | test_caps |= TTY_CAP_UNDERLINE; |
| 4946 | } |
| 4947 | |
| 4948 | /* inverse video */ |
| 4949 | val = attrs[LFACE_INVERSE_INDEX]; |
| 4950 | if (!UNSPECIFIEDP (val)) |
| 4951 | { |
| 4952 | if (face_attr_equal_p (val, def_attrs[LFACE_INVERSE_INDEX])) |
| 4953 | return 0; /* same as default */ |
| 4954 | else |
| 4955 | test_caps |= TTY_CAP_INVERSE; |
| 4956 | } |
| 4957 | |
| 4958 | |
| 4959 | /* Color testing. */ |
| 4960 | |
| 4961 | /* Default the color indices in FG_TTY_COLOR and BG_TTY_COLOR, since |
| 4962 | we use them when calling `tty_capable_p' below, even if the face |
| 4963 | specifies no colors. */ |
| 4964 | fg_tty_color.pixel = FACE_TTY_DEFAULT_FG_COLOR; |
| 4965 | bg_tty_color.pixel = FACE_TTY_DEFAULT_BG_COLOR; |
| 4966 | |
| 4967 | /* Check if foreground color is close enough. */ |
| 4968 | fg = attrs[LFACE_FOREGROUND_INDEX]; |
| 4969 | if (STRINGP (fg)) |
| 4970 | { |
| 4971 | Lisp_Object def_fg = def_attrs[LFACE_FOREGROUND_INDEX]; |
| 4972 | |
| 4973 | if (face_attr_equal_p (fg, def_fg)) |
| 4974 | return 0; /* same as default */ |
| 4975 | else if (! tty_lookup_color (f, fg, &fg_tty_color, &fg_std_color)) |
| 4976 | return 0; /* not a valid color */ |
| 4977 | else if (color_distance (&fg_tty_color, &fg_std_color) |
| 4978 | > TTY_SAME_COLOR_THRESHOLD) |
| 4979 | return 0; /* displayed color is too different */ |
| 4980 | else |
| 4981 | /* Make sure the color is really different than the default. */ |
| 4982 | { |
| 4983 | XColor def_fg_color; |
| 4984 | if (tty_lookup_color (f, def_fg, &def_fg_color, 0) |
| 4985 | && (color_distance (&fg_tty_color, &def_fg_color) |
| 4986 | <= TTY_SAME_COLOR_THRESHOLD)) |
| 4987 | return 0; |
| 4988 | } |
| 4989 | } |
| 4990 | |
| 4991 | /* Check if background color is close enough. */ |
| 4992 | bg = attrs[LFACE_BACKGROUND_INDEX]; |
| 4993 | if (STRINGP (bg)) |
| 4994 | { |
| 4995 | Lisp_Object def_bg = def_attrs[LFACE_BACKGROUND_INDEX]; |
| 4996 | |
| 4997 | if (face_attr_equal_p (bg, def_bg)) |
| 4998 | return 0; /* same as default */ |
| 4999 | else if (! tty_lookup_color (f, bg, &bg_tty_color, &bg_std_color)) |
| 5000 | return 0; /* not a valid color */ |
| 5001 | else if (color_distance (&bg_tty_color, &bg_std_color) |
| 5002 | > TTY_SAME_COLOR_THRESHOLD) |
| 5003 | return 0; /* displayed color is too different */ |
| 5004 | else |
| 5005 | /* Make sure the color is really different than the default. */ |
| 5006 | { |
| 5007 | XColor def_bg_color; |
| 5008 | if (tty_lookup_color (f, def_bg, &def_bg_color, 0) |
| 5009 | && (color_distance (&bg_tty_color, &def_bg_color) |
| 5010 | <= TTY_SAME_COLOR_THRESHOLD)) |
| 5011 | return 0; |
| 5012 | } |
| 5013 | } |
| 5014 | |
| 5015 | /* If both foreground and background are requested, see if the |
| 5016 | distance between them is OK. We just check to see if the distance |
| 5017 | between the tty's foreground and background is close enough to the |
| 5018 | distance between the standard foreground and background. */ |
| 5019 | if (STRINGP (fg) && STRINGP (bg)) |
| 5020 | { |
| 5021 | int delta_delta |
| 5022 | = (color_distance (&fg_std_color, &bg_std_color) |
| 5023 | - color_distance (&fg_tty_color, &bg_tty_color)); |
| 5024 | if (delta_delta > TTY_SAME_COLOR_THRESHOLD |
| 5025 | || delta_delta < -TTY_SAME_COLOR_THRESHOLD) |
| 5026 | return 0; |
| 5027 | } |
| 5028 | |
| 5029 | |
| 5030 | /* See if the capabilities we selected above are supported, with the |
| 5031 | given colors. */ |
| 5032 | if (test_caps != 0 && |
| 5033 | ! tty_capable_p (FRAME_TTY (f), test_caps, fg_tty_color.pixel, |
| 5034 | bg_tty_color.pixel)) |
| 5035 | return 0; |
| 5036 | |
| 5037 | |
| 5038 | /* Hmmm, everything checks out, this terminal must support this face. */ |
| 5039 | return 1; |
| 5040 | } |
| 5041 | |
| 5042 | |
| 5043 | DEFUN ("display-supports-face-attributes-p", |
| 5044 | Fdisplay_supports_face_attributes_p, Sdisplay_supports_face_attributes_p, |
| 5045 | 1, 2, 0, |
| 5046 | doc: /* Return non-nil if all the face attributes in ATTRIBUTES are supported. |
| 5047 | The optional argument DISPLAY can be a display name, a frame, or |
| 5048 | nil (meaning the selected frame's display). |
| 5049 | |
| 5050 | The definition of `supported' is somewhat heuristic, but basically means |
| 5051 | that a face containing all the attributes in ATTRIBUTES, when merged |
| 5052 | with the default face for display, can be represented in a way that's |
| 5053 | |
| 5054 | \(1) different in appearance than the default face, and |
| 5055 | \(2) `close in spirit' to what the attributes specify, if not exact. |
| 5056 | |
| 5057 | Point (2) implies that a `:weight black' attribute will be satisfied by |
| 5058 | any display that can display bold, and a `:foreground \"yellow\"' as long |
| 5059 | as it can display a yellowish color, but `:slant italic' will _not_ be |
| 5060 | satisfied by the tty display code's automatic substitution of a `dim' |
| 5061 | face for italic. */) |
| 5062 | (Lisp_Object attributes, Lisp_Object display) |
| 5063 | { |
| 5064 | int supports = 0, i; |
| 5065 | Lisp_Object frame; |
| 5066 | struct frame *f; |
| 5067 | struct face *def_face; |
| 5068 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
| 5069 | |
| 5070 | if (noninteractive || !initialized) |
| 5071 | /* We may not be able to access low-level face information in batch |
| 5072 | mode, or before being dumped, and this function is not going to |
| 5073 | be very useful in those cases anyway, so just give up. */ |
| 5074 | return Qnil; |
| 5075 | |
| 5076 | if (NILP (display)) |
| 5077 | frame = selected_frame; |
| 5078 | else if (FRAMEP (display)) |
| 5079 | frame = display; |
| 5080 | else |
| 5081 | { |
| 5082 | /* Find any frame on DISPLAY. */ |
| 5083 | Lisp_Object fl_tail; |
| 5084 | |
| 5085 | frame = Qnil; |
| 5086 | for (fl_tail = Vframe_list; CONSP (fl_tail); fl_tail = XCDR (fl_tail)) |
| 5087 | { |
| 5088 | frame = XCAR (fl_tail); |
| 5089 | if (!NILP (Fequal (Fcdr (Fassq (Qdisplay, |
| 5090 | XFRAME (frame)->param_alist)), |
| 5091 | display))) |
| 5092 | break; |
| 5093 | } |
| 5094 | } |
| 5095 | |
| 5096 | CHECK_LIVE_FRAME (frame); |
| 5097 | f = XFRAME (frame); |
| 5098 | |
| 5099 | for (i = 0; i < LFACE_VECTOR_SIZE; i++) |
| 5100 | attrs[i] = Qunspecified; |
| 5101 | merge_face_ref (f, attributes, attrs, 1, 0); |
| 5102 | |
| 5103 | def_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
| 5104 | if (def_face == NULL) |
| 5105 | { |
| 5106 | if (! realize_basic_faces (f)) |
| 5107 | error ("Cannot realize default face"); |
| 5108 | def_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
| 5109 | if (def_face == NULL) |
| 5110 | abort (); /* realize_basic_faces must have set it up */ |
| 5111 | } |
| 5112 | |
| 5113 | /* Dispatch to the appropriate handler. */ |
| 5114 | if (FRAME_TERMCAP_P (f) || FRAME_MSDOS_P (f)) |
| 5115 | supports = tty_supports_face_attributes_p (f, attrs, def_face); |
| 5116 | #ifdef HAVE_WINDOW_SYSTEM |
| 5117 | else |
| 5118 | supports = x_supports_face_attributes_p (f, attrs, def_face); |
| 5119 | #endif |
| 5120 | |
| 5121 | return supports ? Qt : Qnil; |
| 5122 | } |
| 5123 | |
| 5124 | \f |
| 5125 | /*********************************************************************** |
| 5126 | Font selection |
| 5127 | ***********************************************************************/ |
| 5128 | |
| 5129 | DEFUN ("internal-set-font-selection-order", |
| 5130 | Finternal_set_font_selection_order, |
| 5131 | Sinternal_set_font_selection_order, 1, 1, 0, |
| 5132 | doc: /* Set font selection order for face font selection to ORDER. |
| 5133 | ORDER must be a list of length 4 containing the symbols `:width', |
| 5134 | `:height', `:weight', and `:slant'. Face attributes appearing |
| 5135 | first in ORDER are matched first, e.g. if `:height' appears before |
| 5136 | `:weight' in ORDER, font selection first tries to find a font with |
| 5137 | a suitable height, and then tries to match the font weight. |
| 5138 | Value is ORDER. */) |
| 5139 | (Lisp_Object order) |
| 5140 | { |
| 5141 | Lisp_Object list; |
| 5142 | int i; |
| 5143 | int indices[DIM (font_sort_order)]; |
| 5144 | |
| 5145 | CHECK_LIST (order); |
| 5146 | memset (indices, 0, sizeof indices); |
| 5147 | i = 0; |
| 5148 | |
| 5149 | for (list = order; |
| 5150 | CONSP (list) && i < DIM (indices); |
| 5151 | list = XCDR (list), ++i) |
| 5152 | { |
| 5153 | Lisp_Object attr = XCAR (list); |
| 5154 | int xlfd; |
| 5155 | |
| 5156 | if (EQ (attr, QCwidth)) |
| 5157 | xlfd = XLFD_SWIDTH; |
| 5158 | else if (EQ (attr, QCheight)) |
| 5159 | xlfd = XLFD_POINT_SIZE; |
| 5160 | else if (EQ (attr, QCweight)) |
| 5161 | xlfd = XLFD_WEIGHT; |
| 5162 | else if (EQ (attr, QCslant)) |
| 5163 | xlfd = XLFD_SLANT; |
| 5164 | else |
| 5165 | break; |
| 5166 | |
| 5167 | if (indices[i] != 0) |
| 5168 | break; |
| 5169 | indices[i] = xlfd; |
| 5170 | } |
| 5171 | |
| 5172 | if (!NILP (list) || i != DIM (indices)) |
| 5173 | signal_error ("Invalid font sort order", order); |
| 5174 | for (i = 0; i < DIM (font_sort_order); ++i) |
| 5175 | if (indices[i] == 0) |
| 5176 | signal_error ("Invalid font sort order", order); |
| 5177 | |
| 5178 | if (memcmp (indices, font_sort_order, sizeof indices) != 0) |
| 5179 | { |
| 5180 | memcpy (font_sort_order, indices, sizeof font_sort_order); |
| 5181 | free_all_realized_faces (Qnil); |
| 5182 | } |
| 5183 | |
| 5184 | font_update_sort_order (font_sort_order); |
| 5185 | |
| 5186 | return Qnil; |
| 5187 | } |
| 5188 | |
| 5189 | |
| 5190 | DEFUN ("internal-set-alternative-font-family-alist", |
| 5191 | Finternal_set_alternative_font_family_alist, |
| 5192 | Sinternal_set_alternative_font_family_alist, 1, 1, 0, |
| 5193 | doc: /* Define alternative font families to try in face font selection. |
| 5194 | ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries. |
| 5195 | Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can |
| 5196 | be found. Value is ALIST. */) |
| 5197 | (Lisp_Object alist) |
| 5198 | { |
| 5199 | Lisp_Object entry, tail, tail2; |
| 5200 | |
| 5201 | CHECK_LIST (alist); |
| 5202 | alist = Fcopy_sequence (alist); |
| 5203 | for (tail = alist; CONSP (tail); tail = XCDR (tail)) |
| 5204 | { |
| 5205 | entry = XCAR (tail); |
| 5206 | CHECK_LIST (entry); |
| 5207 | entry = Fcopy_sequence (entry); |
| 5208 | XSETCAR (tail, entry); |
| 5209 | for (tail2 = entry; CONSP (tail2); tail2 = XCDR (tail2)) |
| 5210 | XSETCAR (tail2, Fintern (XCAR (tail2), Qnil)); |
| 5211 | } |
| 5212 | |
| 5213 | Vface_alternative_font_family_alist = alist; |
| 5214 | free_all_realized_faces (Qnil); |
| 5215 | return alist; |
| 5216 | } |
| 5217 | |
| 5218 | |
| 5219 | DEFUN ("internal-set-alternative-font-registry-alist", |
| 5220 | Finternal_set_alternative_font_registry_alist, |
| 5221 | Sinternal_set_alternative_font_registry_alist, 1, 1, 0, |
| 5222 | doc: /* Define alternative font registries to try in face font selection. |
| 5223 | ALIST is an alist of (REGISTRY ALTERNATIVE1 ALTERNATIVE2 ...) entries. |
| 5224 | Each ALTERNATIVE is tried in order if no fonts of font registry REGISTRY can |
| 5225 | be found. Value is ALIST. */) |
| 5226 | (Lisp_Object alist) |
| 5227 | { |
| 5228 | Lisp_Object entry, tail, tail2; |
| 5229 | |
| 5230 | CHECK_LIST (alist); |
| 5231 | alist = Fcopy_sequence (alist); |
| 5232 | for (tail = alist; CONSP (tail); tail = XCDR (tail)) |
| 5233 | { |
| 5234 | entry = XCAR (tail); |
| 5235 | CHECK_LIST (entry); |
| 5236 | entry = Fcopy_sequence (entry); |
| 5237 | XSETCAR (tail, entry); |
| 5238 | for (tail2 = entry; CONSP (tail2); tail2 = XCDR (tail2)) |
| 5239 | XSETCAR (tail2, Fdowncase (XCAR (tail2))); |
| 5240 | } |
| 5241 | Vface_alternative_font_registry_alist = alist; |
| 5242 | free_all_realized_faces (Qnil); |
| 5243 | return alist; |
| 5244 | } |
| 5245 | |
| 5246 | |
| 5247 | #ifdef HAVE_WINDOW_SYSTEM |
| 5248 | |
| 5249 | /* Return the fontset id of the base fontset name or alias name given |
| 5250 | by the fontset attribute of ATTRS. Value is -1 if the fontset |
| 5251 | attribute of ATTRS doesn't name a fontset. */ |
| 5252 | |
| 5253 | static int |
| 5254 | face_fontset (Lisp_Object *attrs) |
| 5255 | { |
| 5256 | Lisp_Object name; |
| 5257 | |
| 5258 | name = attrs[LFACE_FONTSET_INDEX]; |
| 5259 | if (!STRINGP (name)) |
| 5260 | return -1; |
| 5261 | return fs_query_fontset (name, 0); |
| 5262 | } |
| 5263 | |
| 5264 | #endif /* HAVE_WINDOW_SYSTEM */ |
| 5265 | |
| 5266 | |
| 5267 | \f |
| 5268 | /*********************************************************************** |
| 5269 | Face Realization |
| 5270 | ***********************************************************************/ |
| 5271 | |
| 5272 | /* Realize basic faces on frame F. Value is zero if frame parameters |
| 5273 | of F don't contain enough information needed to realize the default |
| 5274 | face. */ |
| 5275 | |
| 5276 | static int |
| 5277 | realize_basic_faces (struct frame *f) |
| 5278 | { |
| 5279 | int success_p = 0; |
| 5280 | int count = SPECPDL_INDEX (); |
| 5281 | |
| 5282 | /* Block input here so that we won't be surprised by an X expose |
| 5283 | event, for instance, without having the faces set up. */ |
| 5284 | BLOCK_INPUT; |
| 5285 | specbind (Qscalable_fonts_allowed, Qt); |
| 5286 | |
| 5287 | if (realize_default_face (f)) |
| 5288 | { |
| 5289 | realize_named_face (f, Qmode_line, MODE_LINE_FACE_ID); |
| 5290 | realize_named_face (f, Qmode_line_inactive, MODE_LINE_INACTIVE_FACE_ID); |
| 5291 | realize_named_face (f, Qtool_bar, TOOL_BAR_FACE_ID); |
| 5292 | realize_named_face (f, Qfringe, FRINGE_FACE_ID); |
| 5293 | realize_named_face (f, Qheader_line, HEADER_LINE_FACE_ID); |
| 5294 | realize_named_face (f, Qscroll_bar, SCROLL_BAR_FACE_ID); |
| 5295 | realize_named_face (f, Qborder, BORDER_FACE_ID); |
| 5296 | realize_named_face (f, Qcursor, CURSOR_FACE_ID); |
| 5297 | realize_named_face (f, Qmouse, MOUSE_FACE_ID); |
| 5298 | realize_named_face (f, Qmenu, MENU_FACE_ID); |
| 5299 | realize_named_face (f, Qvertical_border, VERTICAL_BORDER_FACE_ID); |
| 5300 | |
| 5301 | /* Reflect changes in the `menu' face in menu bars. */ |
| 5302 | if (FRAME_FACE_CACHE (f)->menu_face_changed_p) |
| 5303 | { |
| 5304 | FRAME_FACE_CACHE (f)->menu_face_changed_p = 0; |
| 5305 | #ifdef USE_X_TOOLKIT |
| 5306 | if (FRAME_WINDOW_P (f)) |
| 5307 | x_update_menu_appearance (f); |
| 5308 | #endif |
| 5309 | } |
| 5310 | |
| 5311 | success_p = 1; |
| 5312 | } |
| 5313 | |
| 5314 | unbind_to (count, Qnil); |
| 5315 | UNBLOCK_INPUT; |
| 5316 | return success_p; |
| 5317 | } |
| 5318 | |
| 5319 | |
| 5320 | /* Realize the default face on frame F. If the face is not fully |
| 5321 | specified, make it fully-specified. Attributes of the default face |
| 5322 | that are not explicitly specified are taken from frame parameters. */ |
| 5323 | |
| 5324 | static int |
| 5325 | realize_default_face (struct frame *f) |
| 5326 | { |
| 5327 | struct face_cache *c = FRAME_FACE_CACHE (f); |
| 5328 | Lisp_Object lface; |
| 5329 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
| 5330 | struct face *face; |
| 5331 | |
| 5332 | /* If the `default' face is not yet known, create it. */ |
| 5333 | lface = lface_from_face_name (f, Qdefault, 0); |
| 5334 | if (NILP (lface)) |
| 5335 | { |
| 5336 | Lisp_Object frame; |
| 5337 | XSETFRAME (frame, f); |
| 5338 | lface = Finternal_make_lisp_face (Qdefault, frame); |
| 5339 | } |
| 5340 | |
| 5341 | #ifdef HAVE_WINDOW_SYSTEM |
| 5342 | if (FRAME_WINDOW_P (f)) |
| 5343 | { |
| 5344 | Lisp_Object font_object; |
| 5345 | |
| 5346 | XSETFONT (font_object, FRAME_FONT (f)); |
| 5347 | set_lface_from_font (f, lface, font_object, f->default_face_done_p); |
| 5348 | LFACE_FONTSET (lface) = fontset_name (FRAME_FONTSET (f)); |
| 5349 | f->default_face_done_p = 1; |
| 5350 | } |
| 5351 | #endif /* HAVE_WINDOW_SYSTEM */ |
| 5352 | |
| 5353 | if (!FRAME_WINDOW_P (f)) |
| 5354 | { |
| 5355 | LFACE_FAMILY (lface) = build_string ("default"); |
| 5356 | LFACE_FOUNDRY (lface) = LFACE_FAMILY (lface); |
| 5357 | LFACE_SWIDTH (lface) = Qnormal; |
| 5358 | LFACE_HEIGHT (lface) = make_number (1); |
| 5359 | if (UNSPECIFIEDP (LFACE_WEIGHT (lface))) |
| 5360 | LFACE_WEIGHT (lface) = Qnormal; |
| 5361 | if (UNSPECIFIEDP (LFACE_SLANT (lface))) |
| 5362 | LFACE_SLANT (lface) = Qnormal; |
| 5363 | if (UNSPECIFIEDP (LFACE_FONTSET (lface))) |
| 5364 | LFACE_FONTSET (lface) = Qnil; |
| 5365 | } |
| 5366 | |
| 5367 | if (UNSPECIFIEDP (LFACE_UNDERLINE (lface))) |
| 5368 | LFACE_UNDERLINE (lface) = Qnil; |
| 5369 | |
| 5370 | if (UNSPECIFIEDP (LFACE_OVERLINE (lface))) |
| 5371 | LFACE_OVERLINE (lface) = Qnil; |
| 5372 | |
| 5373 | if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface))) |
| 5374 | LFACE_STRIKE_THROUGH (lface) = Qnil; |
| 5375 | |
| 5376 | if (UNSPECIFIEDP (LFACE_BOX (lface))) |
| 5377 | LFACE_BOX (lface) = Qnil; |
| 5378 | |
| 5379 | if (UNSPECIFIEDP (LFACE_INVERSE (lface))) |
| 5380 | LFACE_INVERSE (lface) = Qnil; |
| 5381 | |
| 5382 | if (UNSPECIFIEDP (LFACE_FOREGROUND (lface))) |
| 5383 | { |
| 5384 | /* This function is called so early that colors are not yet |
| 5385 | set in the frame parameter list. */ |
| 5386 | Lisp_Object color = Fassq (Qforeground_color, f->param_alist); |
| 5387 | |
| 5388 | if (CONSP (color) && STRINGP (XCDR (color))) |
| 5389 | LFACE_FOREGROUND (lface) = XCDR (color); |
| 5390 | else if (FRAME_WINDOW_P (f)) |
| 5391 | return 0; |
| 5392 | else if (FRAME_INITIAL_P (f) || FRAME_TERMCAP_P (f) || FRAME_MSDOS_P (f)) |
| 5393 | LFACE_FOREGROUND (lface) = build_string (unspecified_fg); |
| 5394 | else |
| 5395 | abort (); |
| 5396 | } |
| 5397 | |
| 5398 | if (UNSPECIFIEDP (LFACE_BACKGROUND (lface))) |
| 5399 | { |
| 5400 | /* This function is called so early that colors are not yet |
| 5401 | set in the frame parameter list. */ |
| 5402 | Lisp_Object color = Fassq (Qbackground_color, f->param_alist); |
| 5403 | if (CONSP (color) && STRINGP (XCDR (color))) |
| 5404 | LFACE_BACKGROUND (lface) = XCDR (color); |
| 5405 | else if (FRAME_WINDOW_P (f)) |
| 5406 | return 0; |
| 5407 | else if (FRAME_INITIAL_P (f) || FRAME_TERMCAP_P (f) || FRAME_MSDOS_P (f)) |
| 5408 | LFACE_BACKGROUND (lface) = build_string (unspecified_bg); |
| 5409 | else |
| 5410 | abort (); |
| 5411 | } |
| 5412 | |
| 5413 | if (UNSPECIFIEDP (LFACE_STIPPLE (lface))) |
| 5414 | LFACE_STIPPLE (lface) = Qnil; |
| 5415 | |
| 5416 | /* Realize the face; it must be fully-specified now. */ |
| 5417 | xassert (lface_fully_specified_p (XVECTOR (lface)->contents)); |
| 5418 | check_lface (lface); |
| 5419 | memcpy (attrs, XVECTOR (lface)->contents, sizeof attrs); |
| 5420 | face = realize_face (c, attrs, DEFAULT_FACE_ID); |
| 5421 | |
| 5422 | #ifdef HAVE_WINDOW_SYSTEM |
| 5423 | #ifdef HAVE_X_WINDOWS |
| 5424 | if (FRAME_X_P (f) && face->font != FRAME_FONT (f)) |
| 5425 | { |
| 5426 | /* This can happen when making a frame on a display that does |
| 5427 | not support the default font. */ |
| 5428 | if (!face->font) |
| 5429 | return 0; |
| 5430 | |
| 5431 | /* Otherwise, the font specified for the frame was not |
| 5432 | acceptable as a font for the default face (perhaps because |
| 5433 | auto-scaled fonts are rejected), so we must adjust the frame |
| 5434 | font. */ |
| 5435 | x_set_font (f, LFACE_FONT (lface), Qnil); |
| 5436 | } |
| 5437 | #endif /* HAVE_X_WINDOWS */ |
| 5438 | #endif /* HAVE_WINDOW_SYSTEM */ |
| 5439 | return 1; |
| 5440 | } |
| 5441 | |
| 5442 | |
| 5443 | /* Realize basic faces other than the default face in face cache C. |
| 5444 | SYMBOL is the face name, ID is the face id the realized face must |
| 5445 | have. The default face must have been realized already. */ |
| 5446 | |
| 5447 | static void |
| 5448 | realize_named_face (struct frame *f, Lisp_Object symbol, int id) |
| 5449 | { |
| 5450 | struct face_cache *c = FRAME_FACE_CACHE (f); |
| 5451 | Lisp_Object lface = lface_from_face_name (f, symbol, 0); |
| 5452 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
| 5453 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; |
| 5454 | |
| 5455 | /* The default face must exist and be fully specified. */ |
| 5456 | get_lface_attributes_no_remap (f, Qdefault, attrs, 1); |
| 5457 | check_lface_attrs (attrs); |
| 5458 | xassert (lface_fully_specified_p (attrs)); |
| 5459 | |
| 5460 | /* If SYMBOL isn't know as a face, create it. */ |
| 5461 | if (NILP (lface)) |
| 5462 | { |
| 5463 | Lisp_Object frame; |
| 5464 | XSETFRAME (frame, f); |
| 5465 | lface = Finternal_make_lisp_face (symbol, frame); |
| 5466 | } |
| 5467 | |
| 5468 | /* Merge SYMBOL's face with the default face. */ |
| 5469 | get_lface_attributes_no_remap (f, symbol, symbol_attrs, 1); |
| 5470 | merge_face_vectors (f, symbol_attrs, attrs, 0); |
| 5471 | |
| 5472 | /* Realize the face. */ |
| 5473 | realize_face (c, attrs, id); |
| 5474 | } |
| 5475 | |
| 5476 | |
| 5477 | /* Realize the fully-specified face with attributes ATTRS in face |
| 5478 | cache CACHE for ASCII characters. If FORMER_FACE_ID is |
| 5479 | non-negative, it is an ID of face to remove before caching the new |
| 5480 | face. Value is a pointer to the newly created realized face. */ |
| 5481 | |
| 5482 | static struct face * |
| 5483 | realize_face (struct face_cache *cache, Lisp_Object *attrs, int former_face_id) |
| 5484 | { |
| 5485 | struct face *face; |
| 5486 | |
| 5487 | /* LFACE must be fully specified. */ |
| 5488 | xassert (cache != NULL); |
| 5489 | check_lface_attrs (attrs); |
| 5490 | |
| 5491 | if (former_face_id >= 0 && cache->used > former_face_id) |
| 5492 | { |
| 5493 | /* Remove the former face. */ |
| 5494 | struct face *former_face = cache->faces_by_id[former_face_id]; |
| 5495 | uncache_face (cache, former_face); |
| 5496 | free_realized_face (cache->f, former_face); |
| 5497 | SET_FRAME_GARBAGED (cache->f); |
| 5498 | } |
| 5499 | |
| 5500 | if (FRAME_WINDOW_P (cache->f)) |
| 5501 | face = realize_x_face (cache, attrs); |
| 5502 | else if (FRAME_TERMCAP_P (cache->f) || FRAME_MSDOS_P (cache->f)) |
| 5503 | face = realize_tty_face (cache, attrs); |
| 5504 | else if (FRAME_INITIAL_P (cache->f)) |
| 5505 | { |
| 5506 | /* Create a dummy face. */ |
| 5507 | face = make_realized_face (attrs); |
| 5508 | } |
| 5509 | else |
| 5510 | abort (); |
| 5511 | |
| 5512 | /* Insert the new face. */ |
| 5513 | cache_face (cache, face, lface_hash (attrs)); |
| 5514 | return face; |
| 5515 | } |
| 5516 | |
| 5517 | |
| 5518 | #ifdef HAVE_WINDOW_SYSTEM |
| 5519 | /* Realize the fully-specified face that uses FONT-OBJECT and has the |
| 5520 | same attributes as BASE_FACE except for the font on frame F. |
| 5521 | FONT-OBJECT may be nil, in which case, realized a face of |
| 5522 | no-font. */ |
| 5523 | |
| 5524 | static struct face * |
| 5525 | realize_non_ascii_face (struct frame *f, Lisp_Object font_object, |
| 5526 | struct face *base_face) |
| 5527 | { |
| 5528 | struct face_cache *cache = FRAME_FACE_CACHE (f); |
| 5529 | struct face *face; |
| 5530 | |
| 5531 | face = (struct face *) xmalloc (sizeof *face); |
| 5532 | *face = *base_face; |
| 5533 | face->gc = 0; |
| 5534 | face->extra = NULL; |
| 5535 | face->overstrike |
| 5536 | = (! NILP (font_object) |
| 5537 | && FONT_WEIGHT_NAME_NUMERIC (face->lface[LFACE_WEIGHT_INDEX]) > 100 |
| 5538 | && FONT_WEIGHT_NUMERIC (font_object) <= 100); |
| 5539 | |
| 5540 | /* Don't try to free the colors copied bitwise from BASE_FACE. */ |
| 5541 | face->colors_copied_bitwise_p = 1; |
| 5542 | face->font = NILP (font_object) ? NULL : XFONT_OBJECT (font_object); |
| 5543 | face->gc = 0; |
| 5544 | |
| 5545 | cache_face (cache, face, face->hash); |
| 5546 | |
| 5547 | return face; |
| 5548 | } |
| 5549 | #endif /* HAVE_WINDOW_SYSTEM */ |
| 5550 | |
| 5551 | |
| 5552 | /* Realize the fully-specified face with attributes ATTRS in face |
| 5553 | cache CACHE for ASCII characters. Do it for X frame CACHE->f. If |
| 5554 | the new face doesn't share font with the default face, a fontname |
| 5555 | is allocated from the heap and set in `font_name' of the new face, |
| 5556 | but it is not yet loaded here. Value is a pointer to the newly |
| 5557 | created realized face. */ |
| 5558 | |
| 5559 | static struct face * |
| 5560 | realize_x_face (struct face_cache *cache, Lisp_Object *attrs) |
| 5561 | { |
| 5562 | struct face *face = NULL; |
| 5563 | #ifdef HAVE_WINDOW_SYSTEM |
| 5564 | struct face *default_face; |
| 5565 | struct frame *f; |
| 5566 | Lisp_Object stipple, overline, strike_through, box; |
| 5567 | |
| 5568 | xassert (FRAME_WINDOW_P (cache->f)); |
| 5569 | |
| 5570 | /* Allocate a new realized face. */ |
| 5571 | face = make_realized_face (attrs); |
| 5572 | face->ascii_face = face; |
| 5573 | |
| 5574 | f = cache->f; |
| 5575 | |
| 5576 | /* Determine the font to use. Most of the time, the font will be |
| 5577 | the same as the font of the default face, so try that first. */ |
| 5578 | default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
| 5579 | if (default_face |
| 5580 | && lface_same_font_attributes_p (default_face->lface, attrs)) |
| 5581 | { |
| 5582 | face->font = default_face->font; |
| 5583 | face->fontset |
| 5584 | = make_fontset_for_ascii_face (f, default_face->fontset, face); |
| 5585 | } |
| 5586 | else |
| 5587 | { |
| 5588 | /* If the face attribute ATTRS specifies a fontset, use it as |
| 5589 | the base of a new realized fontset. Otherwise, use the same |
| 5590 | base fontset as of the default face. The base determines |
| 5591 | registry and encoding of a font. It may also determine |
| 5592 | foundry and family. The other fields of font name pattern |
| 5593 | are constructed from ATTRS. */ |
| 5594 | int fontset = face_fontset (attrs); |
| 5595 | |
| 5596 | /* If we are realizing the default face, ATTRS should specify a |
| 5597 | fontset. In other words, if FONTSET is -1, we are not |
| 5598 | realizing the default face, thus the default face should have |
| 5599 | already been realized. */ |
| 5600 | if (fontset == -1) |
| 5601 | { |
| 5602 | if (default_face) |
| 5603 | fontset = default_face->fontset; |
| 5604 | if (fontset == -1) |
| 5605 | abort (); |
| 5606 | } |
| 5607 | if (! FONT_OBJECT_P (attrs[LFACE_FONT_INDEX])) |
| 5608 | attrs[LFACE_FONT_INDEX] |
| 5609 | = font_load_for_lface (f, attrs, attrs[LFACE_FONT_INDEX]); |
| 5610 | if (FONT_OBJECT_P (attrs[LFACE_FONT_INDEX])) |
| 5611 | { |
| 5612 | face->font = XFONT_OBJECT (attrs[LFACE_FONT_INDEX]); |
| 5613 | face->fontset = make_fontset_for_ascii_face (f, fontset, face); |
| 5614 | } |
| 5615 | else |
| 5616 | { |
| 5617 | face->font = NULL; |
| 5618 | face->fontset = -1; |
| 5619 | } |
| 5620 | } |
| 5621 | |
| 5622 | if (face->font |
| 5623 | && FONT_WEIGHT_NAME_NUMERIC (attrs[LFACE_WEIGHT_INDEX]) > 100 |
| 5624 | && FONT_WEIGHT_NUMERIC (attrs[LFACE_FONT_INDEX]) <= 100) |
| 5625 | face->overstrike = 1; |
| 5626 | |
| 5627 | /* Load colors, and set remaining attributes. */ |
| 5628 | |
| 5629 | load_face_colors (f, face, attrs); |
| 5630 | |
| 5631 | /* Set up box. */ |
| 5632 | box = attrs[LFACE_BOX_INDEX]; |
| 5633 | if (STRINGP (box)) |
| 5634 | { |
| 5635 | /* A simple box of line width 1 drawn in color given by |
| 5636 | the string. */ |
| 5637 | face->box_color = load_color (f, face, attrs[LFACE_BOX_INDEX], |
| 5638 | LFACE_BOX_INDEX); |
| 5639 | face->box = FACE_SIMPLE_BOX; |
| 5640 | face->box_line_width = 1; |
| 5641 | } |
| 5642 | else if (INTEGERP (box)) |
| 5643 | { |
| 5644 | /* Simple box of specified line width in foreground color of the |
| 5645 | face. */ |
| 5646 | xassert (XINT (box) != 0); |
| 5647 | face->box = FACE_SIMPLE_BOX; |
| 5648 | face->box_line_width = XINT (box); |
| 5649 | face->box_color = face->foreground; |
| 5650 | face->box_color_defaulted_p = 1; |
| 5651 | } |
| 5652 | else if (CONSP (box)) |
| 5653 | { |
| 5654 | /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW |
| 5655 | being one of `raised' or `sunken'. */ |
| 5656 | face->box = FACE_SIMPLE_BOX; |
| 5657 | face->box_color = face->foreground; |
| 5658 | face->box_color_defaulted_p = 1; |
| 5659 | face->box_line_width = 1; |
| 5660 | |
| 5661 | while (CONSP (box)) |
| 5662 | { |
| 5663 | Lisp_Object keyword, value; |
| 5664 | |
| 5665 | keyword = XCAR (box); |
| 5666 | box = XCDR (box); |
| 5667 | |
| 5668 | if (!CONSP (box)) |
| 5669 | break; |
| 5670 | value = XCAR (box); |
| 5671 | box = XCDR (box); |
| 5672 | |
| 5673 | if (EQ (keyword, QCline_width)) |
| 5674 | { |
| 5675 | if (INTEGERP (value) && XINT (value) != 0) |
| 5676 | face->box_line_width = XINT (value); |
| 5677 | } |
| 5678 | else if (EQ (keyword, QCcolor)) |
| 5679 | { |
| 5680 | if (STRINGP (value)) |
| 5681 | { |
| 5682 | face->box_color = load_color (f, face, value, |
| 5683 | LFACE_BOX_INDEX); |
| 5684 | face->use_box_color_for_shadows_p = 1; |
| 5685 | } |
| 5686 | } |
| 5687 | else if (EQ (keyword, QCstyle)) |
| 5688 | { |
| 5689 | if (EQ (value, Qreleased_button)) |
| 5690 | face->box = FACE_RAISED_BOX; |
| 5691 | else if (EQ (value, Qpressed_button)) |
| 5692 | face->box = FACE_SUNKEN_BOX; |
| 5693 | } |
| 5694 | } |
| 5695 | } |
| 5696 | |
| 5697 | /* Text underline, overline, strike-through. */ |
| 5698 | |
| 5699 | if (EQ (attrs[LFACE_UNDERLINE_INDEX], Qt)) |
| 5700 | { |
| 5701 | /* Use default color (same as foreground color). */ |
| 5702 | face->underline_p = 1; |
| 5703 | face->underline_defaulted_p = 1; |
| 5704 | face->underline_color = 0; |
| 5705 | } |
| 5706 | else if (STRINGP (attrs[LFACE_UNDERLINE_INDEX])) |
| 5707 | { |
| 5708 | /* Use specified color. */ |
| 5709 | face->underline_p = 1; |
| 5710 | face->underline_defaulted_p = 0; |
| 5711 | face->underline_color |
| 5712 | = load_color (f, face, attrs[LFACE_UNDERLINE_INDEX], |
| 5713 | LFACE_UNDERLINE_INDEX); |
| 5714 | } |
| 5715 | else if (NILP (attrs[LFACE_UNDERLINE_INDEX])) |
| 5716 | { |
| 5717 | face->underline_p = 0; |
| 5718 | face->underline_defaulted_p = 0; |
| 5719 | face->underline_color = 0; |
| 5720 | } |
| 5721 | |
| 5722 | overline = attrs[LFACE_OVERLINE_INDEX]; |
| 5723 | if (STRINGP (overline)) |
| 5724 | { |
| 5725 | face->overline_color |
| 5726 | = load_color (f, face, attrs[LFACE_OVERLINE_INDEX], |
| 5727 | LFACE_OVERLINE_INDEX); |
| 5728 | face->overline_p = 1; |
| 5729 | } |
| 5730 | else if (EQ (overline, Qt)) |
| 5731 | { |
| 5732 | face->overline_color = face->foreground; |
| 5733 | face->overline_color_defaulted_p = 1; |
| 5734 | face->overline_p = 1; |
| 5735 | } |
| 5736 | |
| 5737 | strike_through = attrs[LFACE_STRIKE_THROUGH_INDEX]; |
| 5738 | if (STRINGP (strike_through)) |
| 5739 | { |
| 5740 | face->strike_through_color |
| 5741 | = load_color (f, face, attrs[LFACE_STRIKE_THROUGH_INDEX], |
| 5742 | LFACE_STRIKE_THROUGH_INDEX); |
| 5743 | face->strike_through_p = 1; |
| 5744 | } |
| 5745 | else if (EQ (strike_through, Qt)) |
| 5746 | { |
| 5747 | face->strike_through_color = face->foreground; |
| 5748 | face->strike_through_color_defaulted_p = 1; |
| 5749 | face->strike_through_p = 1; |
| 5750 | } |
| 5751 | |
| 5752 | stipple = attrs[LFACE_STIPPLE_INDEX]; |
| 5753 | if (!NILP (stipple)) |
| 5754 | face->stipple = load_pixmap (f, stipple, &face->pixmap_w, &face->pixmap_h); |
| 5755 | #endif /* HAVE_WINDOW_SYSTEM */ |
| 5756 | |
| 5757 | return face; |
| 5758 | } |
| 5759 | |
| 5760 | |
| 5761 | /* Map a specified color of face FACE on frame F to a tty color index. |
| 5762 | IDX is either LFACE_FOREGROUND_INDEX or LFACE_BACKGROUND_INDEX, and |
| 5763 | specifies which color to map. Set *DEFAULTED to 1 if mapping to the |
| 5764 | default foreground/background colors. */ |
| 5765 | |
| 5766 | static void |
| 5767 | map_tty_color (struct frame *f, struct face *face, |
| 5768 | enum lface_attribute_index idx, int *defaulted) |
| 5769 | { |
| 5770 | Lisp_Object frame, color, def; |
| 5771 | int foreground_p = idx == LFACE_FOREGROUND_INDEX; |
| 5772 | unsigned long default_pixel = |
| 5773 | foreground_p ? FACE_TTY_DEFAULT_FG_COLOR : FACE_TTY_DEFAULT_BG_COLOR; |
| 5774 | unsigned long pixel = default_pixel; |
| 5775 | #ifdef MSDOS |
| 5776 | unsigned long default_other_pixel = |
| 5777 | foreground_p ? FACE_TTY_DEFAULT_BG_COLOR : FACE_TTY_DEFAULT_FG_COLOR; |
| 5778 | #endif |
| 5779 | |
| 5780 | xassert (idx == LFACE_FOREGROUND_INDEX || idx == LFACE_BACKGROUND_INDEX); |
| 5781 | |
| 5782 | XSETFRAME (frame, f); |
| 5783 | color = face->lface[idx]; |
| 5784 | |
| 5785 | if (STRINGP (color) |
| 5786 | && SCHARS (color) |
| 5787 | && CONSP (Vtty_defined_color_alist) |
| 5788 | && (def = assq_no_quit (color, call1 (Qtty_color_alist, frame)), |
| 5789 | CONSP (def))) |
| 5790 | { |
| 5791 | /* Associations in tty-defined-color-alist are of the form |
| 5792 | (NAME INDEX R G B). We need the INDEX part. */ |
| 5793 | pixel = XINT (XCAR (XCDR (def))); |
| 5794 | } |
| 5795 | |
| 5796 | if (pixel == default_pixel && STRINGP (color)) |
| 5797 | { |
| 5798 | pixel = load_color (f, face, color, idx); |
| 5799 | |
| 5800 | #ifdef MSDOS |
| 5801 | /* If the foreground of the default face is the default color, |
| 5802 | use the foreground color defined by the frame. */ |
| 5803 | if (FRAME_MSDOS_P (f)) |
| 5804 | { |
| 5805 | if (pixel == default_pixel |
| 5806 | || pixel == FACE_TTY_DEFAULT_COLOR) |
| 5807 | { |
| 5808 | if (foreground_p) |
| 5809 | pixel = FRAME_FOREGROUND_PIXEL (f); |
| 5810 | else |
| 5811 | pixel = FRAME_BACKGROUND_PIXEL (f); |
| 5812 | face->lface[idx] = tty_color_name (f, pixel); |
| 5813 | *defaulted = 1; |
| 5814 | } |
| 5815 | else if (pixel == default_other_pixel) |
| 5816 | { |
| 5817 | if (foreground_p) |
| 5818 | pixel = FRAME_BACKGROUND_PIXEL (f); |
| 5819 | else |
| 5820 | pixel = FRAME_FOREGROUND_PIXEL (f); |
| 5821 | face->lface[idx] = tty_color_name (f, pixel); |
| 5822 | *defaulted = 1; |
| 5823 | } |
| 5824 | } |
| 5825 | #endif /* MSDOS */ |
| 5826 | } |
| 5827 | |
| 5828 | if (foreground_p) |
| 5829 | face->foreground = pixel; |
| 5830 | else |
| 5831 | face->background = pixel; |
| 5832 | } |
| 5833 | |
| 5834 | |
| 5835 | /* Realize the fully-specified face with attributes ATTRS in face |
| 5836 | cache CACHE for ASCII characters. Do it for TTY frame CACHE->f. |
| 5837 | Value is a pointer to the newly created realized face. */ |
| 5838 | |
| 5839 | static struct face * |
| 5840 | realize_tty_face (struct face_cache *cache, Lisp_Object *attrs) |
| 5841 | { |
| 5842 | struct face *face; |
| 5843 | int weight, slant; |
| 5844 | int face_colors_defaulted = 0; |
| 5845 | struct frame *f = cache->f; |
| 5846 | |
| 5847 | /* Frame must be a termcap frame. */ |
| 5848 | xassert (FRAME_TERMCAP_P (cache->f) || FRAME_MSDOS_P (cache->f)); |
| 5849 | |
| 5850 | /* Allocate a new realized face. */ |
| 5851 | face = make_realized_face (attrs); |
| 5852 | #if 0 |
| 5853 | face->font_name = FRAME_MSDOS_P (cache->f) ? "ms-dos" : "tty"; |
| 5854 | #endif |
| 5855 | |
| 5856 | /* Map face attributes to TTY appearances. We map slant to |
| 5857 | dimmed text because we want italic text to appear differently |
| 5858 | and because dimmed text is probably used infrequently. */ |
| 5859 | weight = FONT_WEIGHT_NAME_NUMERIC (attrs[LFACE_WEIGHT_INDEX]); |
| 5860 | slant = FONT_SLANT_NAME_NUMERIC (attrs[LFACE_SLANT_INDEX]); |
| 5861 | if (weight > 100) |
| 5862 | face->tty_bold_p = 1; |
| 5863 | if (weight < 100 || slant != 100) |
| 5864 | face->tty_dim_p = 1; |
| 5865 | if (!NILP (attrs[LFACE_UNDERLINE_INDEX])) |
| 5866 | face->tty_underline_p = 1; |
| 5867 | if (!NILP (attrs[LFACE_INVERSE_INDEX])) |
| 5868 | face->tty_reverse_p = 1; |
| 5869 | |
| 5870 | /* Map color names to color indices. */ |
| 5871 | map_tty_color (f, face, LFACE_FOREGROUND_INDEX, &face_colors_defaulted); |
| 5872 | map_tty_color (f, face, LFACE_BACKGROUND_INDEX, &face_colors_defaulted); |
| 5873 | |
| 5874 | /* Swap colors if face is inverse-video. If the colors are taken |
| 5875 | from the frame colors, they are already inverted, since the |
| 5876 | frame-creation function calls x-handle-reverse-video. */ |
| 5877 | if (face->tty_reverse_p && !face_colors_defaulted) |
| 5878 | { |
| 5879 | unsigned long tem = face->foreground; |
| 5880 | face->foreground = face->background; |
| 5881 | face->background = tem; |
| 5882 | } |
| 5883 | |
| 5884 | if (tty_suppress_bold_inverse_default_colors_p |
| 5885 | && face->tty_bold_p |
| 5886 | && face->background == FACE_TTY_DEFAULT_FG_COLOR |
| 5887 | && face->foreground == FACE_TTY_DEFAULT_BG_COLOR) |
| 5888 | face->tty_bold_p = 0; |
| 5889 | |
| 5890 | return face; |
| 5891 | } |
| 5892 | |
| 5893 | |
| 5894 | DEFUN ("tty-suppress-bold-inverse-default-colors", |
| 5895 | Ftty_suppress_bold_inverse_default_colors, |
| 5896 | Stty_suppress_bold_inverse_default_colors, 1, 1, 0, |
| 5897 | doc: /* Suppress/allow boldness of faces with inverse default colors. |
| 5898 | SUPPRESS non-nil means suppress it. |
| 5899 | This affects bold faces on TTYs whose foreground is the default background |
| 5900 | color of the display and whose background is the default foreground color. |
| 5901 | For such faces, the bold face attribute is ignored if this variable |
| 5902 | is non-nil. */) |
| 5903 | (Lisp_Object suppress) |
| 5904 | { |
| 5905 | tty_suppress_bold_inverse_default_colors_p = !NILP (suppress); |
| 5906 | ++face_change_count; |
| 5907 | return suppress; |
| 5908 | } |
| 5909 | |
| 5910 | |
| 5911 | \f |
| 5912 | /*********************************************************************** |
| 5913 | Computing Faces |
| 5914 | ***********************************************************************/ |
| 5915 | |
| 5916 | /* Return the ID of the face to use to display character CH with face |
| 5917 | property PROP on frame F in current_buffer. */ |
| 5918 | |
| 5919 | int |
| 5920 | compute_char_face (struct frame *f, int ch, Lisp_Object prop) |
| 5921 | { |
| 5922 | int face_id; |
| 5923 | |
| 5924 | if (NILP (BVAR (current_buffer, enable_multibyte_characters))) |
| 5925 | ch = 0; |
| 5926 | |
| 5927 | if (NILP (prop)) |
| 5928 | { |
| 5929 | struct face *face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
| 5930 | face_id = FACE_FOR_CHAR (f, face, ch, -1, Qnil); |
| 5931 | } |
| 5932 | else |
| 5933 | { |
| 5934 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
| 5935 | struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
| 5936 | memcpy (attrs, default_face->lface, sizeof attrs); |
| 5937 | merge_face_ref (f, prop, attrs, 1, 0); |
| 5938 | face_id = lookup_face (f, attrs); |
| 5939 | } |
| 5940 | |
| 5941 | return face_id; |
| 5942 | } |
| 5943 | |
| 5944 | /* Return the face ID associated with buffer position POS for |
| 5945 | displaying ASCII characters. Return in *ENDPTR the position at |
| 5946 | which a different face is needed, as far as text properties and |
| 5947 | overlays are concerned. W is a window displaying current_buffer. |
| 5948 | |
| 5949 | REGION_BEG, REGION_END delimit the region, so it can be |
| 5950 | highlighted. |
| 5951 | |
| 5952 | LIMIT is a position not to scan beyond. That is to limit the time |
| 5953 | this function can take. |
| 5954 | |
| 5955 | If MOUSE is non-zero, use the character's mouse-face, not its face. |
| 5956 | |
| 5957 | BASE_FACE_ID, if non-negative, specifies a base face id to use |
| 5958 | instead of DEFAULT_FACE_ID. |
| 5959 | |
| 5960 | The face returned is suitable for displaying ASCII characters. */ |
| 5961 | |
| 5962 | int |
| 5963 | face_at_buffer_position (struct window *w, EMACS_INT pos, |
| 5964 | EMACS_INT region_beg, EMACS_INT region_end, |
| 5965 | EMACS_INT *endptr, EMACS_INT limit, |
| 5966 | int mouse, int base_face_id) |
| 5967 | { |
| 5968 | struct frame *f = XFRAME (w->frame); |
| 5969 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
| 5970 | Lisp_Object prop, position; |
| 5971 | ptrdiff_t i, noverlays; |
| 5972 | Lisp_Object *overlay_vec; |
| 5973 | Lisp_Object frame; |
| 5974 | EMACS_INT endpos; |
| 5975 | Lisp_Object propname = mouse ? Qmouse_face : Qface; |
| 5976 | Lisp_Object limit1, end; |
| 5977 | struct face *default_face; |
| 5978 | |
| 5979 | /* W must display the current buffer. We could write this function |
| 5980 | to use the frame and buffer of W, but right now it doesn't. */ |
| 5981 | /* xassert (XBUFFER (w->buffer) == current_buffer); */ |
| 5982 | |
| 5983 | XSETFRAME (frame, f); |
| 5984 | XSETFASTINT (position, pos); |
| 5985 | |
| 5986 | endpos = ZV; |
| 5987 | if (pos < region_beg && region_beg < endpos) |
| 5988 | endpos = region_beg; |
| 5989 | |
| 5990 | /* Get the `face' or `mouse_face' text property at POS, and |
| 5991 | determine the next position at which the property changes. */ |
| 5992 | prop = Fget_text_property (position, propname, w->buffer); |
| 5993 | XSETFASTINT (limit1, (limit < endpos ? limit : endpos)); |
| 5994 | end = Fnext_single_property_change (position, propname, w->buffer, limit1); |
| 5995 | if (INTEGERP (end)) |
| 5996 | endpos = XINT (end); |
| 5997 | |
| 5998 | /* Look at properties from overlays. */ |
| 5999 | { |
| 6000 | EMACS_INT next_overlay; |
| 6001 | |
| 6002 | GET_OVERLAYS_AT (pos, overlay_vec, noverlays, &next_overlay, 0); |
| 6003 | if (next_overlay < endpos) |
| 6004 | endpos = next_overlay; |
| 6005 | } |
| 6006 | |
| 6007 | *endptr = endpos; |
| 6008 | |
| 6009 | { |
| 6010 | int face_id; |
| 6011 | |
| 6012 | if (base_face_id >= 0) |
| 6013 | face_id = base_face_id; |
| 6014 | else if (NILP (Vface_remapping_alist)) |
| 6015 | face_id = DEFAULT_FACE_ID; |
| 6016 | else |
| 6017 | face_id = lookup_basic_face (f, DEFAULT_FACE_ID); |
| 6018 | |
| 6019 | default_face = FACE_FROM_ID (f, face_id); |
| 6020 | } |
| 6021 | |
| 6022 | /* Optimize common cases where we can use the default face. */ |
| 6023 | if (noverlays == 0 |
| 6024 | && NILP (prop) |
| 6025 | && !(pos >= region_beg && pos < region_end)) |
| 6026 | return default_face->id; |
| 6027 | |
| 6028 | /* Begin with attributes from the default face. */ |
| 6029 | memcpy (attrs, default_face->lface, sizeof attrs); |
| 6030 | |
| 6031 | /* Merge in attributes specified via text properties. */ |
| 6032 | if (!NILP (prop)) |
| 6033 | merge_face_ref (f, prop, attrs, 1, 0); |
| 6034 | |
| 6035 | /* Now merge the overlay data. */ |
| 6036 | noverlays = sort_overlays (overlay_vec, noverlays, w); |
| 6037 | for (i = 0; i < noverlays; i++) |
| 6038 | { |
| 6039 | Lisp_Object oend; |
| 6040 | int oendpos; |
| 6041 | |
| 6042 | prop = Foverlay_get (overlay_vec[i], propname); |
| 6043 | if (!NILP (prop)) |
| 6044 | merge_face_ref (f, prop, attrs, 1, 0); |
| 6045 | |
| 6046 | oend = OVERLAY_END (overlay_vec[i]); |
| 6047 | oendpos = OVERLAY_POSITION (oend); |
| 6048 | if (oendpos < endpos) |
| 6049 | endpos = oendpos; |
| 6050 | } |
| 6051 | |
| 6052 | /* If in the region, merge in the region face. */ |
| 6053 | if (pos >= region_beg && pos < region_end) |
| 6054 | { |
| 6055 | merge_named_face (f, Qregion, attrs, 0); |
| 6056 | |
| 6057 | if (region_end < endpos) |
| 6058 | endpos = region_end; |
| 6059 | } |
| 6060 | |
| 6061 | *endptr = endpos; |
| 6062 | |
| 6063 | /* Look up a realized face with the given face attributes, |
| 6064 | or realize a new one for ASCII characters. */ |
| 6065 | return lookup_face (f, attrs); |
| 6066 | } |
| 6067 | |
| 6068 | /* Return the face ID at buffer position POS for displaying ASCII |
| 6069 | characters associated with overlay strings for overlay OVERLAY. |
| 6070 | |
| 6071 | Like face_at_buffer_position except for OVERLAY. Currently it |
| 6072 | simply disregards the `face' properties of all overlays. */ |
| 6073 | |
| 6074 | int |
| 6075 | face_for_overlay_string (struct window *w, EMACS_INT pos, |
| 6076 | EMACS_INT region_beg, EMACS_INT region_end, |
| 6077 | EMACS_INT *endptr, EMACS_INT limit, |
| 6078 | int mouse, Lisp_Object overlay) |
| 6079 | { |
| 6080 | struct frame *f = XFRAME (w->frame); |
| 6081 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
| 6082 | Lisp_Object prop, position; |
| 6083 | Lisp_Object frame; |
| 6084 | int endpos; |
| 6085 | Lisp_Object propname = mouse ? Qmouse_face : Qface; |
| 6086 | Lisp_Object limit1, end; |
| 6087 | struct face *default_face; |
| 6088 | |
| 6089 | /* W must display the current buffer. We could write this function |
| 6090 | to use the frame and buffer of W, but right now it doesn't. */ |
| 6091 | /* xassert (XBUFFER (w->buffer) == current_buffer); */ |
| 6092 | |
| 6093 | XSETFRAME (frame, f); |
| 6094 | XSETFASTINT (position, pos); |
| 6095 | |
| 6096 | endpos = ZV; |
| 6097 | if (pos < region_beg && region_beg < endpos) |
| 6098 | endpos = region_beg; |
| 6099 | |
| 6100 | /* Get the `face' or `mouse_face' text property at POS, and |
| 6101 | determine the next position at which the property changes. */ |
| 6102 | prop = Fget_text_property (position, propname, w->buffer); |
| 6103 | XSETFASTINT (limit1, (limit < endpos ? limit : endpos)); |
| 6104 | end = Fnext_single_property_change (position, propname, w->buffer, limit1); |
| 6105 | if (INTEGERP (end)) |
| 6106 | endpos = XINT (end); |
| 6107 | |
| 6108 | *endptr = endpos; |
| 6109 | |
| 6110 | default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
| 6111 | |
| 6112 | /* Optimize common cases where we can use the default face. */ |
| 6113 | if (NILP (prop) |
| 6114 | && !(pos >= region_beg && pos < region_end)) |
| 6115 | return DEFAULT_FACE_ID; |
| 6116 | |
| 6117 | /* Begin with attributes from the default face. */ |
| 6118 | memcpy (attrs, default_face->lface, sizeof attrs); |
| 6119 | |
| 6120 | /* Merge in attributes specified via text properties. */ |
| 6121 | if (!NILP (prop)) |
| 6122 | merge_face_ref (f, prop, attrs, 1, 0); |
| 6123 | |
| 6124 | /* If in the region, merge in the region face. */ |
| 6125 | if (pos >= region_beg && pos < region_end) |
| 6126 | { |
| 6127 | merge_named_face (f, Qregion, attrs, 0); |
| 6128 | |
| 6129 | if (region_end < endpos) |
| 6130 | endpos = region_end; |
| 6131 | } |
| 6132 | |
| 6133 | *endptr = endpos; |
| 6134 | |
| 6135 | /* Look up a realized face with the given face attributes, |
| 6136 | or realize a new one for ASCII characters. */ |
| 6137 | return lookup_face (f, attrs); |
| 6138 | } |
| 6139 | |
| 6140 | |
| 6141 | /* Compute the face at character position POS in Lisp string STRING on |
| 6142 | window W, for ASCII characters. |
| 6143 | |
| 6144 | If STRING is an overlay string, it comes from position BUFPOS in |
| 6145 | current_buffer, otherwise BUFPOS is zero to indicate that STRING is |
| 6146 | not an overlay string. W must display the current buffer. |
| 6147 | REGION_BEG and REGION_END give the start and end positions of the |
| 6148 | region; both are -1 if no region is visible. |
| 6149 | |
| 6150 | BASE_FACE_ID is the id of a face to merge with. For strings coming |
| 6151 | from overlays or the `display' property it is the face at BUFPOS. |
| 6152 | |
| 6153 | If MOUSE_P is non-zero, use the character's mouse-face, not its face. |
| 6154 | |
| 6155 | Set *ENDPTR to the next position where to check for faces in |
| 6156 | STRING; -1 if the face is constant from POS to the end of the |
| 6157 | string. |
| 6158 | |
| 6159 | Value is the id of the face to use. The face returned is suitable |
| 6160 | for displaying ASCII characters. */ |
| 6161 | |
| 6162 | int |
| 6163 | face_at_string_position (struct window *w, Lisp_Object string, |
| 6164 | EMACS_INT pos, EMACS_INT bufpos, |
| 6165 | EMACS_INT region_beg, EMACS_INT region_end, |
| 6166 | EMACS_INT *endptr, enum face_id base_face_id, |
| 6167 | int mouse_p) |
| 6168 | { |
| 6169 | Lisp_Object prop, position, end, limit; |
| 6170 | struct frame *f = XFRAME (WINDOW_FRAME (w)); |
| 6171 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
| 6172 | struct face *base_face; |
| 6173 | int multibyte_p = STRING_MULTIBYTE (string); |
| 6174 | Lisp_Object prop_name = mouse_p ? Qmouse_face : Qface; |
| 6175 | |
| 6176 | /* Get the value of the face property at the current position within |
| 6177 | STRING. Value is nil if there is no face property. */ |
| 6178 | XSETFASTINT (position, pos); |
| 6179 | prop = Fget_text_property (position, prop_name, string); |
| 6180 | |
| 6181 | /* Get the next position at which to check for faces. Value of end |
| 6182 | is nil if face is constant all the way to the end of the string. |
| 6183 | Otherwise it is a string position where to check faces next. |
| 6184 | Limit is the maximum position up to which to check for property |
| 6185 | changes in Fnext_single_property_change. Strings are usually |
| 6186 | short, so set the limit to the end of the string. */ |
| 6187 | XSETFASTINT (limit, SCHARS (string)); |
| 6188 | end = Fnext_single_property_change (position, prop_name, string, limit); |
| 6189 | if (INTEGERP (end)) |
| 6190 | *endptr = XFASTINT (end); |
| 6191 | else |
| 6192 | *endptr = -1; |
| 6193 | |
| 6194 | base_face = FACE_FROM_ID (f, base_face_id); |
| 6195 | xassert (base_face); |
| 6196 | |
| 6197 | /* Optimize the default case that there is no face property and we |
| 6198 | are not in the region. */ |
| 6199 | if (NILP (prop) |
| 6200 | && (base_face_id != DEFAULT_FACE_ID |
| 6201 | /* BUFPOS <= 0 means STRING is not an overlay string, so |
| 6202 | that the region doesn't have to be taken into account. */ |
| 6203 | || bufpos <= 0 |
| 6204 | || bufpos < region_beg |
| 6205 | || bufpos >= region_end) |
| 6206 | && (multibyte_p |
| 6207 | /* We can't realize faces for different charsets differently |
| 6208 | if we don't have fonts, so we can stop here if not working |
| 6209 | on a window-system frame. */ |
| 6210 | || !FRAME_WINDOW_P (f) |
| 6211 | || FACE_SUITABLE_FOR_ASCII_CHAR_P (base_face, 0))) |
| 6212 | return base_face->id; |
| 6213 | |
| 6214 | /* Begin with attributes from the base face. */ |
| 6215 | memcpy (attrs, base_face->lface, sizeof attrs); |
| 6216 | |
| 6217 | /* Merge in attributes specified via text properties. */ |
| 6218 | if (!NILP (prop)) |
| 6219 | merge_face_ref (f, prop, attrs, 1, 0); |
| 6220 | |
| 6221 | /* If in the region, merge in the region face. */ |
| 6222 | if (bufpos |
| 6223 | && bufpos >= region_beg |
| 6224 | && bufpos < region_end) |
| 6225 | merge_named_face (f, Qregion, attrs, 0); |
| 6226 | |
| 6227 | /* Look up a realized face with the given face attributes, |
| 6228 | or realize a new one for ASCII characters. */ |
| 6229 | return lookup_face (f, attrs); |
| 6230 | } |
| 6231 | |
| 6232 | |
| 6233 | /* Merge a face into a realized face. |
| 6234 | |
| 6235 | F is frame where faces are (to be) realized. |
| 6236 | |
| 6237 | FACE_NAME is named face to merge. |
| 6238 | |
| 6239 | If FACE_NAME is nil, FACE_ID is face_id of realized face to merge. |
| 6240 | |
| 6241 | If FACE_NAME is t, FACE_ID is lface_id of face to merge. |
| 6242 | |
| 6243 | BASE_FACE_ID is realized face to merge into. |
| 6244 | |
| 6245 | Return new face id. |
| 6246 | */ |
| 6247 | |
| 6248 | int |
| 6249 | merge_faces (struct frame *f, Lisp_Object face_name, EMACS_INT face_id, |
| 6250 | int base_face_id) |
| 6251 | { |
| 6252 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
| 6253 | struct face *base_face; |
| 6254 | |
| 6255 | base_face = FACE_FROM_ID (f, base_face_id); |
| 6256 | if (!base_face) |
| 6257 | return base_face_id; |
| 6258 | |
| 6259 | if (EQ (face_name, Qt)) |
| 6260 | { |
| 6261 | if (face_id < 0 || face_id >= lface_id_to_name_size) |
| 6262 | return base_face_id; |
| 6263 | face_name = lface_id_to_name[face_id]; |
| 6264 | /* When called during make-frame, lookup_derived_face may fail |
| 6265 | if the faces are uninitialized. Don't signal an error. */ |
| 6266 | face_id = lookup_derived_face (f, face_name, base_face_id, 0); |
| 6267 | return (face_id >= 0 ? face_id : base_face_id); |
| 6268 | } |
| 6269 | |
| 6270 | /* Begin with attributes from the base face. */ |
| 6271 | memcpy (attrs, base_face->lface, sizeof attrs); |
| 6272 | |
| 6273 | if (!NILP (face_name)) |
| 6274 | { |
| 6275 | if (!merge_named_face (f, face_name, attrs, 0)) |
| 6276 | return base_face_id; |
| 6277 | } |
| 6278 | else |
| 6279 | { |
| 6280 | struct face *face; |
| 6281 | if (face_id < 0) |
| 6282 | return base_face_id; |
| 6283 | face = FACE_FROM_ID (f, face_id); |
| 6284 | if (!face) |
| 6285 | return base_face_id; |
| 6286 | merge_face_vectors (f, face->lface, attrs, 0); |
| 6287 | } |
| 6288 | |
| 6289 | /* Look up a realized face with the given face attributes, |
| 6290 | or realize a new one for ASCII characters. */ |
| 6291 | return lookup_face (f, attrs); |
| 6292 | } |
| 6293 | |
| 6294 | \f |
| 6295 | |
| 6296 | #ifndef HAVE_X_WINDOWS |
| 6297 | DEFUN ("x-load-color-file", Fx_load_color_file, |
| 6298 | Sx_load_color_file, 1, 1, 0, |
| 6299 | doc: /* Create an alist of color entries from an external file. |
| 6300 | |
| 6301 | The file should define one named RGB color per line like so: |
| 6302 | R G B name |
| 6303 | where R,G,B are numbers between 0 and 255 and name is an arbitrary string. */) |
| 6304 | (Lisp_Object filename) |
| 6305 | { |
| 6306 | FILE *fp; |
| 6307 | Lisp_Object cmap = Qnil; |
| 6308 | Lisp_Object abspath; |
| 6309 | |
| 6310 | CHECK_STRING (filename); |
| 6311 | abspath = Fexpand_file_name (filename, Qnil); |
| 6312 | |
| 6313 | fp = fopen (SDATA (abspath), "rt"); |
| 6314 | if (fp) |
| 6315 | { |
| 6316 | char buf[512]; |
| 6317 | int red, green, blue; |
| 6318 | int num; |
| 6319 | |
| 6320 | BLOCK_INPUT; |
| 6321 | |
| 6322 | while (fgets (buf, sizeof (buf), fp) != NULL) { |
| 6323 | if (sscanf (buf, "%u %u %u %n", &red, &green, &blue, &num) == 3) |
| 6324 | { |
| 6325 | char *name = buf + num; |
| 6326 | num = strlen (name) - 1; |
| 6327 | if (num >= 0 && name[num] == '\n') |
| 6328 | name[num] = 0; |
| 6329 | cmap = Fcons (Fcons (build_string (name), |
| 6330 | #ifdef WINDOWSNT |
| 6331 | make_number (RGB (red, green, blue))), |
| 6332 | #else |
| 6333 | make_number ((red << 16) | (green << 8) | blue)), |
| 6334 | #endif |
| 6335 | cmap); |
| 6336 | } |
| 6337 | } |
| 6338 | fclose (fp); |
| 6339 | |
| 6340 | UNBLOCK_INPUT; |
| 6341 | } |
| 6342 | |
| 6343 | return cmap; |
| 6344 | } |
| 6345 | #endif |
| 6346 | |
| 6347 | \f |
| 6348 | /*********************************************************************** |
| 6349 | Tests |
| 6350 | ***********************************************************************/ |
| 6351 | |
| 6352 | #if GLYPH_DEBUG |
| 6353 | |
| 6354 | /* Print the contents of the realized face FACE to stderr. */ |
| 6355 | |
| 6356 | static void |
| 6357 | dump_realized_face (struct face *face) |
| 6358 | { |
| 6359 | fprintf (stderr, "ID: %d\n", face->id); |
| 6360 | #ifdef HAVE_X_WINDOWS |
| 6361 | fprintf (stderr, "gc: %ld\n", (long) face->gc); |
| 6362 | #endif |
| 6363 | fprintf (stderr, "foreground: 0x%lx (%s)\n", |
| 6364 | face->foreground, |
| 6365 | SDATA (face->lface[LFACE_FOREGROUND_INDEX])); |
| 6366 | fprintf (stderr, "background: 0x%lx (%s)\n", |
| 6367 | face->background, |
| 6368 | SDATA (face->lface[LFACE_BACKGROUND_INDEX])); |
| 6369 | if (face->font) |
| 6370 | fprintf (stderr, "font_name: %s (%s)\n", |
| 6371 | SDATA (face->font->props[FONT_NAME_INDEX]), |
| 6372 | SDATA (face->lface[LFACE_FAMILY_INDEX])); |
| 6373 | #ifdef HAVE_X_WINDOWS |
| 6374 | fprintf (stderr, "font = %p\n", face->font); |
| 6375 | #endif |
| 6376 | fprintf (stderr, "fontset: %d\n", face->fontset); |
| 6377 | fprintf (stderr, "underline: %d (%s)\n", |
| 6378 | face->underline_p, |
| 6379 | SDATA (Fsymbol_name (face->lface[LFACE_UNDERLINE_INDEX]))); |
| 6380 | fprintf (stderr, "hash: %d\n", face->hash); |
| 6381 | } |
| 6382 | |
| 6383 | |
| 6384 | DEFUN ("dump-face", Fdump_face, Sdump_face, 0, 1, 0, doc: /* */) |
| 6385 | (Lisp_Object n) |
| 6386 | { |
| 6387 | if (NILP (n)) |
| 6388 | { |
| 6389 | int i; |
| 6390 | |
| 6391 | fprintf (stderr, "font selection order: "); |
| 6392 | for (i = 0; i < DIM (font_sort_order); ++i) |
| 6393 | fprintf (stderr, "%d ", font_sort_order[i]); |
| 6394 | fprintf (stderr, "\n"); |
| 6395 | |
| 6396 | fprintf (stderr, "alternative fonts: "); |
| 6397 | debug_print (Vface_alternative_font_family_alist); |
| 6398 | fprintf (stderr, "\n"); |
| 6399 | |
| 6400 | for (i = 0; i < FRAME_FACE_CACHE (SELECTED_FRAME ())->used; ++i) |
| 6401 | Fdump_face (make_number (i)); |
| 6402 | } |
| 6403 | else |
| 6404 | { |
| 6405 | struct face *face; |
| 6406 | CHECK_NUMBER (n); |
| 6407 | face = FACE_FROM_ID (SELECTED_FRAME (), XINT (n)); |
| 6408 | if (face == NULL) |
| 6409 | error ("Not a valid face"); |
| 6410 | dump_realized_face (face); |
| 6411 | } |
| 6412 | |
| 6413 | return Qnil; |
| 6414 | } |
| 6415 | |
| 6416 | |
| 6417 | DEFUN ("show-face-resources", Fshow_face_resources, Sshow_face_resources, |
| 6418 | 0, 0, 0, doc: /* */) |
| 6419 | (void) |
| 6420 | { |
| 6421 | fprintf (stderr, "number of colors = %d\n", ncolors_allocated); |
| 6422 | fprintf (stderr, "number of pixmaps = %d\n", npixmaps_allocated); |
| 6423 | fprintf (stderr, "number of GCs = %d\n", ngcs); |
| 6424 | return Qnil; |
| 6425 | } |
| 6426 | |
| 6427 | #endif /* GLYPH_DEBUG != 0 */ |
| 6428 | |
| 6429 | |
| 6430 | \f |
| 6431 | /*********************************************************************** |
| 6432 | Initialization |
| 6433 | ***********************************************************************/ |
| 6434 | |
| 6435 | void |
| 6436 | syms_of_xfaces (void) |
| 6437 | { |
| 6438 | DEFSYM (Qface, "face"); |
| 6439 | DEFSYM (Qface_no_inherit, "face-no-inherit"); |
| 6440 | DEFSYM (Qbitmap_spec_p, "bitmap-spec-p"); |
| 6441 | DEFSYM (Qframe_set_background_mode, "frame-set-background-mode"); |
| 6442 | |
| 6443 | /* Lisp face attribute keywords. */ |
| 6444 | DEFSYM (QCfamily, ":family"); |
| 6445 | DEFSYM (QCheight, ":height"); |
| 6446 | DEFSYM (QCweight, ":weight"); |
| 6447 | DEFSYM (QCslant, ":slant"); |
| 6448 | DEFSYM (QCunderline, ":underline"); |
| 6449 | DEFSYM (QCinverse_video, ":inverse-video"); |
| 6450 | DEFSYM (QCreverse_video, ":reverse-video"); |
| 6451 | DEFSYM (QCforeground, ":foreground"); |
| 6452 | DEFSYM (QCbackground, ":background"); |
| 6453 | DEFSYM (QCstipple, ":stipple"); |
| 6454 | DEFSYM (QCwidth, ":width"); |
| 6455 | DEFSYM (QCfont, ":font"); |
| 6456 | DEFSYM (QCfontset, ":fontset"); |
| 6457 | DEFSYM (QCbold, ":bold"); |
| 6458 | DEFSYM (QCitalic, ":italic"); |
| 6459 | DEFSYM (QCoverline, ":overline"); |
| 6460 | DEFSYM (QCstrike_through, ":strike-through"); |
| 6461 | DEFSYM (QCbox, ":box"); |
| 6462 | DEFSYM (QCinherit, ":inherit"); |
| 6463 | |
| 6464 | /* Symbols used for Lisp face attribute values. */ |
| 6465 | DEFSYM (QCcolor, ":color"); |
| 6466 | DEFSYM (QCline_width, ":line-width"); |
| 6467 | DEFSYM (QCstyle, ":style"); |
| 6468 | DEFSYM (Qreleased_button, "released-button"); |
| 6469 | DEFSYM (Qpressed_button, "pressed-button"); |
| 6470 | DEFSYM (Qnormal, "normal"); |
| 6471 | DEFSYM (Qultra_light, "ultra-light"); |
| 6472 | DEFSYM (Qextra_light, "extra-light"); |
| 6473 | DEFSYM (Qlight, "light"); |
| 6474 | DEFSYM (Qsemi_light, "semi-light"); |
| 6475 | DEFSYM (Qsemi_bold, "semi-bold"); |
| 6476 | DEFSYM (Qbold, "bold"); |
| 6477 | DEFSYM (Qextra_bold, "extra-bold"); |
| 6478 | DEFSYM (Qultra_bold, "ultra-bold"); |
| 6479 | DEFSYM (Qoblique, "oblique"); |
| 6480 | DEFSYM (Qitalic, "italic"); |
| 6481 | DEFSYM (Qreverse_oblique, "reverse-oblique"); |
| 6482 | DEFSYM (Qreverse_italic, "reverse-italic"); |
| 6483 | DEFSYM (Qultra_condensed, "ultra-condensed"); |
| 6484 | DEFSYM (Qextra_condensed, "extra-condensed"); |
| 6485 | DEFSYM (Qcondensed, "condensed"); |
| 6486 | DEFSYM (Qsemi_condensed, "semi-condensed"); |
| 6487 | DEFSYM (Qsemi_expanded, "semi-expanded"); |
| 6488 | DEFSYM (Qexpanded, "expanded"); |
| 6489 | DEFSYM (Qextra_expanded, "extra-expanded"); |
| 6490 | DEFSYM (Qultra_expanded, "ultra-expanded"); |
| 6491 | DEFSYM (Qbackground_color, "background-color"); |
| 6492 | DEFSYM (Qforeground_color, "foreground-color"); |
| 6493 | DEFSYM (Qunspecified, "unspecified"); |
| 6494 | DEFSYM (QCignore_defface, ":ignore-defface"); |
| 6495 | |
| 6496 | DEFSYM (Qface_alias, "face-alias"); |
| 6497 | DEFSYM (Qdefault, "default"); |
| 6498 | DEFSYM (Qtool_bar, "tool-bar"); |
| 6499 | DEFSYM (Qregion, "region"); |
| 6500 | DEFSYM (Qfringe, "fringe"); |
| 6501 | DEFSYM (Qheader_line, "header-line"); |
| 6502 | DEFSYM (Qscroll_bar, "scroll-bar"); |
| 6503 | DEFSYM (Qmenu, "menu"); |
| 6504 | DEFSYM (Qcursor, "cursor"); |
| 6505 | DEFSYM (Qborder, "border"); |
| 6506 | DEFSYM (Qmouse, "mouse"); |
| 6507 | DEFSYM (Qmode_line_inactive, "mode-line-inactive"); |
| 6508 | DEFSYM (Qvertical_border, "vertical-border"); |
| 6509 | DEFSYM (Qtty_color_desc, "tty-color-desc"); |
| 6510 | DEFSYM (Qtty_color_standard_values, "tty-color-standard-values"); |
| 6511 | DEFSYM (Qtty_color_by_index, "tty-color-by-index"); |
| 6512 | DEFSYM (Qtty_color_alist, "tty-color-alist"); |
| 6513 | DEFSYM (Qscalable_fonts_allowed, "scalable-fonts-allowed"); |
| 6514 | |
| 6515 | Vparam_value_alist = Fcons (Fcons (Qnil, Qnil), Qnil); |
| 6516 | staticpro (&Vparam_value_alist); |
| 6517 | Vface_alternative_font_family_alist = Qnil; |
| 6518 | staticpro (&Vface_alternative_font_family_alist); |
| 6519 | Vface_alternative_font_registry_alist = Qnil; |
| 6520 | staticpro (&Vface_alternative_font_registry_alist); |
| 6521 | |
| 6522 | defsubr (&Sinternal_make_lisp_face); |
| 6523 | defsubr (&Sinternal_lisp_face_p); |
| 6524 | defsubr (&Sinternal_set_lisp_face_attribute); |
| 6525 | #ifdef HAVE_WINDOW_SYSTEM |
| 6526 | defsubr (&Sinternal_set_lisp_face_attribute_from_resource); |
| 6527 | #endif |
| 6528 | defsubr (&Scolor_gray_p); |
| 6529 | defsubr (&Scolor_supported_p); |
| 6530 | #ifndef HAVE_X_WINDOWS |
| 6531 | defsubr (&Sx_load_color_file); |
| 6532 | #endif |
| 6533 | defsubr (&Sface_attribute_relative_p); |
| 6534 | defsubr (&Smerge_face_attribute); |
| 6535 | defsubr (&Sinternal_get_lisp_face_attribute); |
| 6536 | defsubr (&Sinternal_lisp_face_attribute_values); |
| 6537 | defsubr (&Sinternal_lisp_face_equal_p); |
| 6538 | defsubr (&Sinternal_lisp_face_empty_p); |
| 6539 | defsubr (&Sinternal_copy_lisp_face); |
| 6540 | defsubr (&Sinternal_merge_in_global_face); |
| 6541 | defsubr (&Sface_font); |
| 6542 | defsubr (&Sframe_face_alist); |
| 6543 | defsubr (&Sdisplay_supports_face_attributes_p); |
| 6544 | defsubr (&Scolor_distance); |
| 6545 | defsubr (&Sinternal_set_font_selection_order); |
| 6546 | defsubr (&Sinternal_set_alternative_font_family_alist); |
| 6547 | defsubr (&Sinternal_set_alternative_font_registry_alist); |
| 6548 | defsubr (&Sface_attributes_as_vector); |
| 6549 | #if GLYPH_DEBUG |
| 6550 | defsubr (&Sdump_face); |
| 6551 | defsubr (&Sshow_face_resources); |
| 6552 | #endif /* GLYPH_DEBUG */ |
| 6553 | defsubr (&Sclear_face_cache); |
| 6554 | defsubr (&Stty_suppress_bold_inverse_default_colors); |
| 6555 | |
| 6556 | #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS |
| 6557 | defsubr (&Sdump_colors); |
| 6558 | #endif |
| 6559 | |
| 6560 | DEFVAR_LISP ("font-list-limit", Vfont_list_limit, |
| 6561 | doc: /* *Limit for font matching. |
| 6562 | If an integer > 0, font matching functions won't load more than |
| 6563 | that number of fonts when searching for a matching font. */); |
| 6564 | Vfont_list_limit = make_number (DEFAULT_FONT_LIST_LIMIT); |
| 6565 | |
| 6566 | DEFVAR_LISP ("face-new-frame-defaults", Vface_new_frame_defaults, |
| 6567 | doc: /* List of global face definitions (for internal use only.) */); |
| 6568 | Vface_new_frame_defaults = Qnil; |
| 6569 | |
| 6570 | DEFVAR_LISP ("face-default-stipple", Vface_default_stipple, |
| 6571 | doc: /* *Default stipple pattern used on monochrome displays. |
| 6572 | This stipple pattern is used on monochrome displays |
| 6573 | instead of shades of gray for a face background color. |
| 6574 | See `set-face-stipple' for possible values for this variable. */); |
| 6575 | Vface_default_stipple = make_pure_c_string ("gray3"); |
| 6576 | |
| 6577 | DEFVAR_LISP ("tty-defined-color-alist", Vtty_defined_color_alist, |
| 6578 | doc: /* An alist of defined terminal colors and their RGB values. |
| 6579 | See the docstring of `tty-color-alist' for the details. */); |
| 6580 | Vtty_defined_color_alist = Qnil; |
| 6581 | |
| 6582 | DEFVAR_LISP ("scalable-fonts-allowed", Vscalable_fonts_allowed, |
| 6583 | doc: /* Allowed scalable fonts. |
| 6584 | A value of nil means don't allow any scalable fonts. |
| 6585 | A value of t means allow any scalable font. |
| 6586 | Otherwise, value must be a list of regular expressions. A font may be |
| 6587 | scaled if its name matches a regular expression in the list. |
| 6588 | Note that if value is nil, a scalable font might still be used, if no |
| 6589 | other font of the appropriate family and registry is available. */); |
| 6590 | Vscalable_fonts_allowed = Qnil; |
| 6591 | |
| 6592 | DEFVAR_LISP ("face-ignored-fonts", Vface_ignored_fonts, |
| 6593 | doc: /* List of ignored fonts. |
| 6594 | Each element is a regular expression that matches names of fonts to |
| 6595 | ignore. */); |
| 6596 | Vface_ignored_fonts = Qnil; |
| 6597 | |
| 6598 | DEFVAR_LISP ("face-remapping-alist", Vface_remapping_alist, |
| 6599 | doc: /* Alist of face remappings. |
| 6600 | Each element is of the form: |
| 6601 | |
| 6602 | (FACE REPLACEMENT...), |
| 6603 | |
| 6604 | which causes display of the face FACE to use REPLACEMENT... instead. |
| 6605 | REPLACEMENT... is interpreted the same way as the value of a `face' |
| 6606 | text property: it may be (1) A face name, (2) A list of face names, |
| 6607 | (3) A property-list of face attribute/value pairs, or (4) A list of |
| 6608 | face names or lists containing face attribute/value pairs. |
| 6609 | |
| 6610 | Multiple entries in REPLACEMENT... are merged together to form the final |
| 6611 | result, with faces or attributes earlier in the list taking precedence |
| 6612 | over those that are later. |
| 6613 | |
| 6614 | Face-name remapping cycles are suppressed; recursive references use the |
| 6615 | underlying face instead of the remapped face. So a remapping of the form: |
| 6616 | |
| 6617 | (FACE EXTRA-FACE... FACE) |
| 6618 | |
| 6619 | or: |
| 6620 | |
| 6621 | (FACE (FACE-ATTR VAL ...) FACE) |
| 6622 | |
| 6623 | will cause EXTRA-FACE... or (FACE-ATTR VAL ...) to be _merged_ with the |
| 6624 | existing definition of FACE. Note that for the default face, this isn't |
| 6625 | necessary, as every face inherits from the default face. |
| 6626 | |
| 6627 | Making this variable buffer-local is a good way to allow buffer-specific |
| 6628 | face definitions. For instance, the mode my-mode could define a face |
| 6629 | `my-mode-default', and then in the mode setup function, do: |
| 6630 | |
| 6631 | (set (make-local-variable 'face-remapping-alist) |
| 6632 | '((default my-mode-default)))). |
| 6633 | |
| 6634 | Because Emacs normally only redraws screen areas when the underlying |
| 6635 | buffer contents change, you may need to call `redraw-display' after |
| 6636 | changing this variable for it to take effect. */); |
| 6637 | Vface_remapping_alist = Qnil; |
| 6638 | |
| 6639 | DEFVAR_LISP ("face-font-rescale-alist", Vface_font_rescale_alist, |
| 6640 | doc: /* Alist of fonts vs the rescaling factors. |
| 6641 | Each element is a cons (FONT-PATTERN . RESCALE-RATIO), where |
| 6642 | FONT-PATTERN is a font-spec or a regular expression matching a font name, and |
| 6643 | RESCALE-RATIO is a floating point number to specify how much larger |
| 6644 | \(or smaller) font we should use. For instance, if a face requests |
| 6645 | a font of 10 point, we actually use a font of 10 * RESCALE-RATIO point. */); |
| 6646 | Vface_font_rescale_alist = Qnil; |
| 6647 | |
| 6648 | #ifdef HAVE_WINDOW_SYSTEM |
| 6649 | defsubr (&Sbitmap_spec_p); |
| 6650 | defsubr (&Sx_list_fonts); |
| 6651 | defsubr (&Sinternal_face_x_get_resource); |
| 6652 | defsubr (&Sx_family_fonts); |
| 6653 | #endif |
| 6654 | } |