Commit | Line | Data |
---|---|---|
c22ca93b | 1 | /* Interface definitions for display code. |
95df8112 | 2 | |
ba318903 | 3 | Copyright (C) 1985, 1993-1994, 1997-2014 Free Software Foundation, Inc. |
c22ca93b JB |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
b9b1cc14 | 7 | GNU Emacs is free software: you can redistribute it and/or modify |
c22ca93b | 8 | it under the terms of the GNU General Public License as published by |
b9b1cc14 GM |
9 | the Free Software Foundation, either version 3 of the License, or |
10 | (at your option) any later version. | |
c22ca93b JB |
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 | |
b9b1cc14 | 18 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
c22ca93b | 19 | |
4d2036e4 | 20 | /* New redisplay written by Gerd Moellmann <gerd@gnu.org>. */ |
87485d6f | 21 | |
5f5c8ee5 GM |
22 | #ifndef DISPEXTERN_H_INCLUDED |
23 | #define DISPEXTERN_H_INCLUDED | |
c22ca93b | 24 | |
84575e67 PE |
25 | #include "character.h" |
26 | ||
c22ca93b | 27 | #ifdef HAVE_X_WINDOWS |
94e32607 | 28 | |
9f2279ad | 29 | #include <X11/Xlib.h> |
8317e104 GM |
30 | #ifdef USE_X_TOOLKIT |
31 | #include <X11/Intrinsic.h> | |
32 | #endif /* USE_X_TOOLKIT */ | |
94e32607 JB |
33 | |
34 | #else /* !HAVE_X_WINDOWS */ | |
35 | ||
9e6e9826 | 36 | /* X-related stuff used by non-X gui code. */ |
94e32607 JB |
37 | |
38 | typedef struct { | |
39 | unsigned long pixel; | |
40 | unsigned short red, green, blue; | |
41 | char flags; | |
42 | char pad; | |
43 | } XColor; | |
44 | ||
8317e104 | 45 | #endif /* HAVE_X_WINDOWS */ |
87485d6f MW |
46 | |
47 | #ifdef MSDOS | |
48 | #include "msdos.h" | |
49 | #endif | |
9f2279ad | 50 | |
f162bcc3 | 51 | INLINE_HEADER_BEGIN |
f162bcc3 | 52 | |
fee5959d | 53 | #include <c-strcase.h> |
00382e8b | 54 | INLINE int |
fee5959d PE |
55 | xstrcasecmp (char const *a, char const *b) |
56 | { | |
57 | return c_strcasecmp (a, b); | |
58 | } | |
59 | ||
d74b2553 | 60 | #ifdef HAVE_X_WINDOWS |
a6c2ee1b | 61 | #include <X11/Xresource.h> /* for XrmDatabase */ |
d74b2553 | 62 | typedef struct x_display_info Display_Info; |
6b61353c KH |
63 | typedef XImage * XImagePtr; |
64 | typedef XImagePtr XImagePtr_or_DC; | |
d74b2553 KS |
65 | #define NativeRectangle XRectangle |
66 | #endif | |
67 | ||
497fbd42 | 68 | #ifdef HAVE_NTGUI |
c0ac470c | 69 | #include "w32gui.h" |
d74b2553 | 70 | typedef struct w32_display_info Display_Info; |
6b61353c KH |
71 | typedef XImage *XImagePtr; |
72 | typedef HDC XImagePtr_or_DC; | |
497fbd42 GV |
73 | #endif |
74 | ||
edfda783 AR |
75 | #ifdef HAVE_NS |
76 | #include "nsgui.h" | |
7ee6a1d3 | 77 | /* Following typedef needed to accommodate the MSDOS port, believe it or not. */ |
edfda783 AR |
78 | typedef struct ns_display_info Display_Info; |
79 | typedef Pixmap XImagePtr; | |
80 | typedef XImagePtr XImagePtr_or_DC; | |
81 | #endif | |
82 | ||
d35af63c | 83 | #ifdef HAVE_WINDOW_SYSTEM |
43aac990 | 84 | # include <time.h> |
d35af63c PE |
85 | #endif |
86 | ||
7ea692f6 | 87 | #ifndef HAVE_WINDOW_SYSTEM |
d009ae66 EZ |
88 | typedef int Cursor; |
89 | #define No_Cursor (0) | |
90 | #endif | |
91 | ||
dfbe5d05 KS |
92 | #ifndef NativeRectangle |
93 | #define NativeRectangle int | |
94 | #endif | |
95 | ||
9997ec56 | 96 | /* Text cursor types. */ |
5f5c8ee5 | 97 | |
9997ec56 DA |
98 | enum text_cursor_kinds |
99 | { | |
100 | DEFAULT_CURSOR = -2, | |
101 | NO_CURSOR = -1, | |
102 | FILLED_BOX_CURSOR, | |
103 | HOLLOW_BOX_CURSOR, | |
104 | BAR_CURSOR, | |
105 | HBAR_CURSOR | |
106 | }; | |
5f5c8ee5 | 107 | |
d74b2553 KS |
108 | /* Values returned from coordinates_in_window. */ |
109 | ||
110 | enum window_part | |
111 | { | |
112 | ON_NOTHING, | |
113 | ON_TEXT, | |
114 | ON_MODE_LINE, | |
115 | ON_VERTICAL_BORDER, | |
116 | ON_HEADER_LINE, | |
117 | ON_LEFT_FRINGE, | |
118 | ON_RIGHT_FRINGE, | |
119 | ON_LEFT_MARGIN, | |
ab431b61 | 120 | ON_RIGHT_MARGIN, |
880e6158 MR |
121 | ON_SCROLL_BAR, |
122 | ON_RIGHT_DIVIDER, | |
123 | ON_BOTTOM_DIVIDER | |
d74b2553 KS |
124 | }; |
125 | ||
6b61353c | 126 | /* Number of bits allocated to store fringe bitmap numbers. */ |
b3b08f03 | 127 | #define FRINGE_ID_BITS 16 |
6b61353c | 128 | |
5a874e95 YM |
129 | /* Number of bits allocated to store fringe bitmap height. */ |
130 | #define FRINGE_HEIGHT_BITS 8 | |
d74b2553 | 131 | |
5f5c8ee5 | 132 | \f |
5f5c8ee5 GM |
133 | /*********************************************************************** |
134 | Debugging | |
135 | ***********************************************************************/ | |
136 | ||
e509cfa6 | 137 | /* If GLYPH_DEBUG is defined, additional checks are activated. */ |
5f5c8ee5 | 138 | |
e509cfa6 | 139 | /* Macros to include code only if GLYPH_DEBUG is defined. */ |
5f5c8ee5 | 140 | |
e509cfa6 | 141 | #ifdef GLYPH_DEBUG |
b4dd49e0 | 142 | #define IF_DEBUG(X) ((void) (X)) |
5f5c8ee5 | 143 | #else |
96c06863 | 144 | #define IF_DEBUG(X) ((void) 0) |
5f5c8ee5 GM |
145 | #endif |
146 | ||
147 | /* Macro for displaying traces of redisplay. If Emacs was compiled | |
e509cfa6 | 148 | with GLYPH_DEBUG defined, the variable trace_redisplay_p can be set to |
5f5c8ee5 GM |
149 | a non-zero value in debugging sessions to activate traces. */ |
150 | ||
e509cfa6 | 151 | #ifdef GLYPH_DEBUG |
5f5c8ee5 | 152 | |
96c06863 | 153 | extern bool trace_redisplay_p EXTERNALLY_VISIBLE; |
5f5c8ee5 GM |
154 | #include <stdio.h> |
155 | ||
156 | #define TRACE(X) \ | |
96c06863 | 157 | do { \ |
5f5c8ee5 GM |
158 | if (trace_redisplay_p) \ |
159 | fprintf X; \ | |
96c06863 | 160 | } while (false) |
5f5c8ee5 | 161 | |
e509cfa6 | 162 | #else /* not GLYPH_DEBUG */ |
5f5c8ee5 | 163 | |
96c06863 | 164 | #define TRACE(X) ((void) 0) |
5f5c8ee5 | 165 | |
e509cfa6 | 166 | #endif /* GLYPH_DEBUG */ |
5f5c8ee5 | 167 | |
177c0ea7 | 168 | |
5f5c8ee5 GM |
169 | \f |
170 | /*********************************************************************** | |
171 | Text positions | |
172 | ***********************************************************************/ | |
173 | ||
174 | /* Starting with Emacs 20.3, characters from strings and buffers have | |
175 | both a character and a byte position associated with them. The | |
176 | following structure holds such a pair of positions. */ | |
177c0ea7 | 177 | |
5f5c8ee5 GM |
178 | struct text_pos |
179 | { | |
180 | /* Character position. */ | |
d311d28c | 181 | ptrdiff_t charpos; |
5f5c8ee5 GM |
182 | |
183 | /* Corresponding byte position. */ | |
d311d28c | 184 | ptrdiff_t bytepos; |
5f5c8ee5 GM |
185 | }; |
186 | ||
187 | /* Access character and byte position of POS in a functional form. */ | |
188 | ||
189 | #define BYTEPOS(POS) (POS).bytepos | |
190 | #define CHARPOS(POS) (POS).charpos | |
191 | ||
192 | /* Set character position of POS to CHARPOS, byte position to BYTEPOS. */ | |
193 | ||
194 | #define SET_TEXT_POS(POS, CHARPOS, BYTEPOS) \ | |
195 | ((POS).charpos = (CHARPOS), (POS).bytepos = BYTEPOS) | |
196 | ||
197 | /* Increment text position POS. */ | |
198 | ||
7bed37e4 | 199 | #define INC_TEXT_POS(POS, MULTIBYTE_P) \ |
5f5c8ee5 GM |
200 | do \ |
201 | { \ | |
202 | ++(POS).charpos; \ | |
7bed37e4 GM |
203 | if (MULTIBYTE_P) \ |
204 | INC_POS ((POS).bytepos); \ | |
205 | else \ | |
206 | ++(POS).bytepos; \ | |
5f5c8ee5 | 207 | } \ |
96c06863 | 208 | while (false) |
5f5c8ee5 GM |
209 | |
210 | /* Decrement text position POS. */ | |
211 | ||
7bed37e4 | 212 | #define DEC_TEXT_POS(POS, MULTIBYTE_P) \ |
5f5c8ee5 GM |
213 | do \ |
214 | { \ | |
215 | --(POS).charpos; \ | |
7bed37e4 GM |
216 | if (MULTIBYTE_P) \ |
217 | DEC_POS ((POS).bytepos); \ | |
218 | else \ | |
219 | --(POS).bytepos; \ | |
5f5c8ee5 | 220 | } \ |
96c06863 | 221 | while (false) |
5f5c8ee5 GM |
222 | |
223 | /* Set text position POS from marker MARKER. */ | |
224 | ||
225 | #define SET_TEXT_POS_FROM_MARKER(POS, MARKER) \ | |
cf91889a DA |
226 | (CHARPOS (POS) = marker_position (MARKER), \ |
227 | BYTEPOS (POS) = marker_byte_position (MARKER)) | |
228 | ||
229 | /* Like above, but clip POS within accessible range. */ | |
230 | ||
231 | #define CLIP_TEXT_POS_FROM_MARKER(POS, MARKER) \ | |
232 | (CHARPOS (POS) = clip_to_bounds \ | |
233 | (BEGV, marker_position (MARKER), ZV), \ | |
234 | BYTEPOS (POS) = clip_to_bounds \ | |
235 | (BEGV_BYTE, marker_byte_position (MARKER), ZV_BYTE)) | |
5f5c8ee5 GM |
236 | |
237 | /* Set marker MARKER from text position POS. */ | |
238 | ||
239 | #define SET_MARKER_FROM_TEXT_POS(MARKER, POS) \ | |
240 | set_marker_both ((MARKER), Qnil, CHARPOS ((POS)), BYTEPOS ((POS))) | |
177c0ea7 | 241 | |
5f5c8ee5 GM |
242 | /* Value is non-zero if character and byte positions of POS1 and POS2 |
243 | are equal. */ | |
244 | ||
245 | #define TEXT_POS_EQUAL_P(POS1, POS2) \ | |
246 | ((POS1).charpos == (POS2).charpos \ | |
247 | && (POS1).bytepos == (POS2).bytepos) | |
248 | ||
249 | /* When rendering glyphs, redisplay scans string or buffer text, | |
250 | overlay strings in that text, and does display table or control | |
251 | character translations. The following structure captures a | |
252 | position taking all this into account. */ | |
253 | ||
254 | struct display_pos | |
255 | { | |
256 | /* Buffer or string position. */ | |
257 | struct text_pos pos; | |
258 | ||
259 | /* If this is a position in an overlay string, overlay_string_index | |
260 | is the index of that overlay string in the sequence of overlay | |
261 | strings at `pos' in the order redisplay processes them. A value | |
262 | < 0 means that this is not a position in an overlay string. */ | |
d311d28c | 263 | ptrdiff_t overlay_string_index; |
5f5c8ee5 GM |
264 | |
265 | /* If this is a position in an overlay string, string_pos is the | |
266 | position within that string. */ | |
267 | struct text_pos string_pos; | |
268 | ||
269 | /* If the character at the position above is a control character or | |
270 | has a display table entry, dpvec_index is an index in the display | |
271 | table or control character translation of that character. A | |
272 | value < 0 means this is not a position in such a translation. */ | |
273 | int dpvec_index; | |
274 | }; | |
275 | ||
276 | ||
277 | \f | |
278 | /*********************************************************************** | |
279 | Glyphs | |
280 | ***********************************************************************/ | |
281 | ||
84575e67 PE |
282 | /* The glyph datatype, used to represent characters on the display. |
283 | It consists of a char code and a face id. */ | |
284 | ||
285 | typedef struct { | |
286 | int ch; | |
287 | int face_id; | |
288 | } GLYPH; | |
289 | ||
290 | /* Return a glyph's character code. */ | |
00382e8b | 291 | INLINE int GLYPH_CHAR (GLYPH glyph) { return glyph.ch; } |
84575e67 PE |
292 | |
293 | /* Return a glyph's face ID. */ | |
00382e8b | 294 | INLINE int GLYPH_FACE (GLYPH glyph) { return glyph.face_id; } |
84575e67 PE |
295 | |
296 | #define SET_GLYPH_CHAR(glyph, char) ((glyph).ch = (char)) | |
297 | #define SET_GLYPH_FACE(glyph, face) ((glyph).face_id = (face)) | |
298 | #define SET_GLYPH(glyph, char, face) \ | |
299 | ((glyph).ch = (char), (glyph).face_id = (face)) | |
300 | ||
301 | /* The following are valid only if GLYPH_CODE_P (gc). */ | |
302 | ||
00382e8b | 303 | INLINE int |
84575e67 PE |
304 | GLYPH_CODE_CHAR (Lisp_Object gc) |
305 | { | |
306 | return (CONSP (gc) | |
307 | ? XINT (XCAR (gc)) | |
308 | : XINT (gc) & MAX_CHAR); | |
309 | } | |
310 | ||
00382e8b | 311 | INLINE int |
84575e67 PE |
312 | GLYPH_CODE_FACE (Lisp_Object gc) |
313 | { | |
314 | return CONSP (gc) ? XINT (XCDR (gc)) : XINT (gc) >> CHARACTERBITS; | |
315 | } | |
316 | ||
317 | #define SET_GLYPH_FROM_GLYPH_CODE(glyph, gc) \ | |
318 | do \ | |
319 | { \ | |
320 | if (CONSP (gc)) \ | |
321 | SET_GLYPH (glyph, XINT (XCAR (gc)), XINT (XCDR (gc))); \ | |
322 | else \ | |
323 | SET_GLYPH (glyph, (XINT (gc) & ((1 << CHARACTERBITS)-1)), \ | |
324 | (XINT (gc) >> CHARACTERBITS)); \ | |
325 | } \ | |
96c06863 | 326 | while (false) |
84575e67 PE |
327 | |
328 | /* The ID of the mode line highlighting face. */ | |
329 | enum { GLYPH_MODE_LINE_FACE = 1 }; | |
330 | ||
5f5c8ee5 GM |
331 | /* Enumeration of glyph types. Glyph structures contain a type field |
332 | containing one of the enumerators defined here. */ | |
333 | ||
334 | enum glyph_type | |
335 | { | |
336 | /* Glyph describes a character. */ | |
177c0ea7 | 337 | CHAR_GLYPH, |
5f5c8ee5 | 338 | |
a88c7fcd | 339 | /* Glyph describes a static composition. */ |
a90fbbf6 KH |
340 | COMPOSITE_GLYPH, |
341 | ||
b2cca856 KH |
342 | /* Glyph describes a glyphless character. */ |
343 | GLYPHLESS_GLYPH, | |
344 | ||
5f5c8ee5 GM |
345 | /* Glyph describes an image. */ |
346 | IMAGE_GLYPH, | |
347 | ||
348 | /* Glyph is a space of fractional width and/or height. */ | |
349 | STRETCH_GLYPH | |
350 | }; | |
351 | ||
352 | ||
0633d52c KS |
353 | /* Structure describing how to use partial glyphs (images slicing) */ |
354 | ||
355 | struct glyph_slice | |
356 | { | |
357 | unsigned x : 16; | |
358 | unsigned y : 16; | |
359 | unsigned width : 16; | |
360 | unsigned height : 16; | |
361 | }; | |
362 | ||
363 | ||
827503c6 GM |
364 | /* Glyphs. |
365 | ||
366 | Be extra careful when changing this structure! Esp. make sure that | |
d5cc60b8 | 367 | functions producing glyphs, like append_glyph, fill ALL of the |
827503c6 GM |
368 | glyph structure, and that GLYPH_EQUAL_P compares all |
369 | display-relevant members of glyphs (not to imply that these are the | |
370 | only things to check when you add a member). */ | |
5f5c8ee5 GM |
371 | |
372 | struct glyph | |
373 | { | |
374 | /* Position from which this glyph was drawn. If `object' below is a | |
9f899da0 EZ |
375 | Lisp string, this is an index into that string. If it is a |
376 | buffer, this is a position in that buffer. In addition, some | |
377 | special glyphs have special values for this: | |
378 | ||
379 | glyph standing for newline at end of line 0 | |
380 | empty space after the end of the line -1 | |
381 | overlay arrow on a TTY -1 | |
382 | glyph at EOB that ends in a newline -1 | |
383 | left truncation glyphs: -1 | |
384 | right truncation/continuation glyphs next buffer position | |
385 | glyph standing for newline of an empty line buffer position of newline | |
386 | stretch glyph at left edge of R2L lines buffer position of newline */ | |
d311d28c | 387 | ptrdiff_t charpos; |
5f5c8ee5 | 388 | |
7a3a7493 EZ |
389 | /* Lisp object source of this glyph. Currently either a buffer or a |
390 | string, if the glyph was produced from characters which came from | |
9f899da0 EZ |
391 | a buffer or a string; or Lisp integer zero (a.k.a. "null object") |
392 | if the glyph was inserted by redisplay for its own purposes, such | |
393 | as padding or truncation/continuation glyphs, or the | |
394 | overlay-arrow glyphs on TTYs. */ | |
5f5c8ee5 GM |
395 | Lisp_Object object; |
396 | ||
397 | /* Width in pixels. */ | |
398 | short pixel_width; | |
399 | ||
6b61353c KH |
400 | /* Ascent and descent in pixels. */ |
401 | short ascent, descent; | |
402 | ||
5f5c8ee5 GM |
403 | /* Vertical offset. If < 0, the glyph is displayed raised, if > 0 |
404 | the glyph is displayed lowered. */ | |
405 | short voffset; | |
406 | ||
407 | /* Which kind of glyph this is---character, image etc. Value | |
408 | should be an enumerator of type enum glyph_type. */ | |
b2cca856 | 409 | unsigned type : 3; |
5f5c8ee5 | 410 | |
96c06863 | 411 | /* True means this glyph was produced from multibyte text. False |
5f5c8ee5 GM |
412 | means it was produced from unibyte text, i.e. charsets aren't |
413 | applicable, and encoding is not performed. */ | |
96c06863 | 414 | bool_bf multibyte_p : 1; |
5f5c8ee5 | 415 | |
96c06863 | 416 | /* True means draw a box line at the left or right side of this |
5f5c8ee5 GM |
417 | glyph. This is part of the implementation of the face attribute |
418 | `:box'. */ | |
96c06863 PE |
419 | bool_bf left_box_line_p : 1; |
420 | bool_bf right_box_line_p : 1; | |
5f5c8ee5 | 421 | |
96c06863 | 422 | /* True means this glyph's physical ascent or descent is greater |
2febf6e0 GM |
423 | than its logical ascent/descent, i.e. it may potentially overlap |
424 | glyphs above or below it. */ | |
96c06863 | 425 | bool_bf overlaps_vertically_p : 1; |
2febf6e0 | 426 | |
96c06863 | 427 | /* For terminal frames, true means glyph is a padding glyph. Padding |
ae185452 KH |
428 | glyphs are used for characters whose visual shape consists of |
429 | more than one glyph (e.g. Asian characters). All but the first | |
430 | glyph of such a glyph sequence have the padding_p flag set. This | |
431 | flag is used only to minimize code changes. A better way would | |
432 | probably be to use the width field of glyphs to express padding. | |
433 | ||
96c06863 | 434 | For graphic frames, true means the pixel width of the glyph in a |
ae185452 KH |
435 | font is 0, but 1-pixel is padded on displaying for correct cursor |
436 | displaying. The member `pixel_width' above is set to 1. */ | |
96c06863 | 437 | bool_bf padding_p : 1; |
3305fc6a | 438 | |
96c06863 | 439 | /* True means the actual glyph is not available, draw using `struct |
0eb025fb EZ |
440 | glyphless' below instead. This can happen when a font couldn't |
441 | be loaded, or a character doesn't have a glyph in a font. */ | |
96c06863 | 442 | bool_bf glyph_not_available_p : 1; |
b3091a23 | 443 | |
96c06863 PE |
444 | /* True means don't display cursor here. */ |
445 | bool_bf avoid_cursor_p : 1; | |
c4f4682b | 446 | |
e69a9370 | 447 | /* Resolved bidirectional level of this character [0..63]. */ |
29e3d8d1 | 448 | unsigned resolved_level : 5; |
5e65aec0 EZ |
449 | |
450 | /* Resolved bidirectional type of this character, see enum | |
29e3d8d1 EZ |
451 | bidi_type_t below. Note that according to UAX#9, only some |
452 | values (STRONG_L, STRONG_R, WEAK_AN, WEAK_EN, WEAK_BN, and | |
453 | NEUTRAL_B) can appear in the resolved type, so we only reserve | |
454 | space for those that can. */ | |
455 | unsigned bidi_type : 3; | |
5e65aec0 | 456 | |
c4f4682b | 457 | #define FACE_ID_BITS 20 |
6b61353c | 458 | |
c68b9c2f RS |
459 | /* Face of the glyph. This is a realized face ID, |
460 | an index in the face cache of the frame. */ | |
6b61353c | 461 | unsigned face_id : FACE_ID_BITS; |
3305fc6a | 462 | |
d5cc60b8 | 463 | /* Type of font used to display the character glyph. May be used to |
b40b05b6 | 464 | determine which set of functions to use to obtain font metrics |
d5cc60b8 KS |
465 | for the glyph. On W32, value should be an enumerator of the type |
466 | w32_char_font_type. Otherwise it equals FONT_TYPE_UNKNOWN. */ | |
467 | unsigned font_type : 3; | |
b40b05b6 | 468 | |
4be9765d KH |
469 | /* A union of sub-structures for different glyph types. */ |
470 | union | |
471 | { | |
472 | /* Metrics of a partial glyph of an image (type == IMAGE_GLYPH). */ | |
473 | struct glyph_slice img; | |
e4769531 | 474 | /* Start and end indices of glyphs of a grapheme cluster of a |
4be9765d KH |
475 | composition (type == COMPOSITE_GLYPH). */ |
476 | struct { int from, to; } cmp; | |
b2cca856 KH |
477 | /* Pixel offsets for upper and lower part of the acronym. */ |
478 | struct { | |
479 | short upper_xoff, upper_yoff; | |
480 | short lower_xoff, lower_yoff; | |
481 | } glyphless; | |
4be9765d | 482 | } slice; |
0633d52c | 483 | |
5f5c8ee5 GM |
484 | /* A union of sub-structures for different glyph types. */ |
485 | union | |
486 | { | |
3305fc6a KH |
487 | /* Character code for character glyphs (type == CHAR_GLYPH). */ |
488 | unsigned ch; | |
5f5c8ee5 | 489 | |
4be9765d | 490 | /* Sub-structures for type == COMPOSITE_GLYPH. */ |
a88c7fcd KH |
491 | struct |
492 | { | |
493 | /* Flag to tell if the composition is automatic or not. */ | |
96c06863 | 494 | bool_bf automatic : 1; |
a88c7fcd | 495 | /* ID of the composition. */ |
4be9765d | 496 | unsigned id : 31; |
a88c7fcd | 497 | } cmp; |
a90fbbf6 | 498 | |
3305fc6a | 499 | /* Image ID for image glyphs (type == IMAGE_GLYPH). */ |
fdb0b28b | 500 | int img_id; |
5f5c8ee5 GM |
501 | |
502 | /* Sub-structure for type == STRETCH_GLYPH. */ | |
503 | struct | |
504 | { | |
505 | /* The height of the glyph. */ | |
3305fc6a | 506 | unsigned height : 16; |
5f5c8ee5 GM |
507 | |
508 | /* The ascent of the glyph. */ | |
3305fc6a | 509 | unsigned ascent : 16; |
5f5c8ee5 GM |
510 | } |
511 | stretch; | |
177c0ea7 | 512 | |
b2cca856 KH |
513 | /* Sub-stretch for type == GLYPHLESS_GLYPH. */ |
514 | struct | |
515 | { | |
516 | /* Value is an enum of the type glyphless_display_method. */ | |
517 | unsigned method : 2; | |
96c06863 PE |
518 | /* True iff this glyph is for a character of no font. */ |
519 | bool_bf for_no_font : 1; | |
b2cca856 KH |
520 | /* Length of acronym or hexadecimal code string (at most 8). */ |
521 | unsigned len : 4; | |
522 | /* Character to display. Actually we need only 22 bits. */ | |
679910f1 | 523 | unsigned ch : 25; |
b2cca856 KH |
524 | } glyphless; |
525 | ||
5f5c8ee5 GM |
526 | /* Used to compare all bit-fields above in one step. */ |
527 | unsigned val; | |
528 | } u; | |
529 | }; | |
530 | ||
531 | ||
d5cc60b8 KS |
532 | /* Default value of the glyph font_type field. */ |
533 | ||
534 | #define FONT_TYPE_UNKNOWN 0 | |
535 | ||
5f5c8ee5 GM |
536 | /* Is GLYPH a space? */ |
537 | ||
538 | #define CHAR_GLYPH_SPACE_P(GLYPH) \ | |
98329671 | 539 | ((GLYPH).u.ch == SPACEGLYPH && (GLYPH).face_id == DEFAULT_FACE_ID) |
5f5c8ee5 | 540 | |
4be9765d KH |
541 | /* Are glyph slices of glyphs *X and *Y equal? It assumes that both |
542 | glyphs have the same type. | |
543 | ||
544 | Note: for composition glyphs, we don't have to compare slice.cmp.to | |
545 | because they should be the same if and only if slice.cmp.from are | |
546 | the same. */ | |
547 | ||
548 | #define GLYPH_SLICE_EQUAL_P(X, Y) \ | |
549 | ((X)->type == IMAGE_GLYPH \ | |
550 | ? ((X)->slice.img.x == (Y)->slice.img.x \ | |
551 | && (X)->slice.img.y == (Y)->slice.img.y \ | |
552 | && (X)->slice.img.width == (Y)->slice.img.width \ | |
553 | && (X)->slice.img.height == (Y)->slice.img.height) \ | |
554 | : ((X)->type != COMPOSITE_GLYPH \ | |
555 | || (X)->slice.cmp.from == (Y)->slice.cmp.from)) | |
0633d52c | 556 | |
827503c6 | 557 | /* Are glyphs *X and *Y displayed equal? */ |
177c0ea7 | 558 | |
5f5c8ee5 GM |
559 | #define GLYPH_EQUAL_P(X, Y) \ |
560 | ((X)->type == (Y)->type \ | |
561 | && (X)->u.val == (Y)->u.val \ | |
0633d52c | 562 | && GLYPH_SLICE_EQUAL_P (X, Y) \ |
3305fc6a KH |
563 | && (X)->face_id == (Y)->face_id \ |
564 | && (X)->padding_p == (Y)->padding_p \ | |
5f5c8ee5 GM |
565 | && (X)->left_box_line_p == (Y)->left_box_line_p \ |
566 | && (X)->right_box_line_p == (Y)->right_box_line_p \ | |
726950c4 GM |
567 | && (X)->voffset == (Y)->voffset \ |
568 | && (X)->pixel_width == (Y)->pixel_width) | |
5f5c8ee5 | 569 | |
3305fc6a KH |
570 | /* Are character codes, faces, padding_ps of glyphs *X and *Y equal? */ |
571 | ||
572 | #define GLYPH_CHAR_AND_FACE_EQUAL_P(X, Y) \ | |
573 | ((X)->u.ch == (Y)->u.ch \ | |
574 | && (X)->face_id == (Y)->face_id \ | |
575 | && (X)->padding_p == (Y)->padding_p) | |
576 | ||
5f5c8ee5 GM |
577 | /* Fill a character glyph GLYPH. CODE, FACE_ID, PADDING_P correspond |
578 | to the bits defined for the typedef `GLYPH' in lisp.h. */ | |
177c0ea7 | 579 | |
5f5c8ee5 GM |
580 | #define SET_CHAR_GLYPH(GLYPH, CODE, FACE_ID, PADDING_P) \ |
581 | do \ | |
582 | { \ | |
3305fc6a KH |
583 | (GLYPH).u.ch = (CODE); \ |
584 | (GLYPH).face_id = (FACE_ID); \ | |
585 | (GLYPH).padding_p = (PADDING_P); \ | |
5f5c8ee5 | 586 | } \ |
96c06863 | 587 | while (false) |
5f5c8ee5 GM |
588 | |
589 | /* Fill a character type glyph GLYPH from a glyph typedef FROM as | |
590 | defined in lisp.h. */ | |
177c0ea7 | 591 | |
5f5c8ee5 GM |
592 | #define SET_CHAR_GLYPH_FROM_GLYPH(GLYPH, FROM) \ |
593 | SET_CHAR_GLYPH ((GLYPH), \ | |
652df850 KS |
594 | GLYPH_CHAR ((FROM)), \ |
595 | GLYPH_FACE ((FROM)), \ | |
96c06863 | 596 | false) |
5f5c8ee5 | 597 | |
3305fc6a KH |
598 | /* Construct a glyph code from a character glyph GLYPH. If the |
599 | character is multibyte, return -1 as we can't use glyph table for a | |
54bff0bd | 600 | multibyte character. */ |
177c0ea7 | 601 | |
652df850 KS |
602 | #define SET_GLYPH_FROM_CHAR_GLYPH(G, GLYPH) \ |
603 | do \ | |
604 | { \ | |
605 | if ((GLYPH).u.ch < 256) \ | |
606 | SET_GLYPH ((G), (GLYPH).u.ch, ((GLYPH).face_id)); \ | |
607 | else \ | |
608 | SET_GLYPH ((G), -1, 0); \ | |
609 | } \ | |
96c06863 | 610 | while (false) |
652df850 KS |
611 | |
612 | #define GLYPH_INVALID_P(GLYPH) (GLYPH_CHAR (GLYPH) < 0) | |
5f5c8ee5 GM |
613 | |
614 | /* Is GLYPH a padding glyph? */ | |
177c0ea7 | 615 | |
3305fc6a | 616 | #define CHAR_GLYPH_PADDING_P(GLYPH) (GLYPH).padding_p |
5f5c8ee5 GM |
617 | |
618 | ||
619 | ||
620 | \f | |
621 | /*********************************************************************** | |
622 | Glyph Pools | |
623 | ***********************************************************************/ | |
624 | ||
625 | /* Glyph Pool. | |
626 | ||
627 | Glyph memory for frame-based redisplay is allocated from the heap | |
628 | in one vector kept in a glyph pool structure which is stored with | |
629 | the frame. The size of the vector is made large enough to cover | |
630 | all windows on the frame. | |
631 | ||
632 | Both frame and window glyph matrices reference memory from a glyph | |
633 | pool in frame-based redisplay. | |
634 | ||
635 | In window-based redisplay, no glyphs pools exist; windows allocate | |
636 | and free their glyph memory themselves. */ | |
637 | ||
638 | struct glyph_pool | |
639 | { | |
640 | /* Vector of glyphs allocated from the heap. */ | |
641 | struct glyph *glyphs; | |
642 | ||
643 | /* Allocated size of `glyphs'. */ | |
ca9ce8f2 | 644 | ptrdiff_t nglyphs; |
5f5c8ee5 GM |
645 | |
646 | /* Number of rows and columns in a matrix. */ | |
647 | int nrows, ncolumns; | |
648 | }; | |
649 | ||
650 | ||
651 | \f | |
652 | /*********************************************************************** | |
653 | Glyph Matrix | |
654 | ***********************************************************************/ | |
655 | ||
656 | /* Glyph Matrix. | |
657 | ||
658 | Three kinds of glyph matrices exist: | |
659 | ||
660 | 1. Frame glyph matrices. These are used for terminal frames whose | |
661 | redisplay needs a view of the whole screen due to limited terminal | |
662 | capabilities. Frame matrices are used only in the update phase | |
663 | of redisplay. They are built in update_frame and not used after | |
664 | the update has been performed. | |
665 | ||
666 | 2. Window glyph matrices on frames having frame glyph matrices. | |
667 | Such matrices are sub-matrices of their corresponding frame matrix, | |
bad98418 PE |
668 | i.e., frame glyph matrices and window glyph matrices share the same |
669 | glyph memory, which is allocated in the form of a glyph_pool structure. | |
5f5c8ee5 GM |
670 | Glyph rows in such a window matrix are slices of frame matrix rows. |
671 | ||
880e6158 | 672 | 3. Free-standing window glyph matrices managing their own glyph |
5f5c8ee5 GM |
673 | storage. This form is used in window-based redisplay which |
674 | includes variable width and height fonts etc. | |
675 | ||
676 | The size of a window's row vector depends on the height of fonts | |
677 | defined on its frame. It is chosen so that the vector is large | |
678 | enough to describe all lines in a window when it is displayed in | |
679 | the smallest possible character size. When new fonts are loaded, | |
680 | or window sizes change, the row vector is adjusted accordingly. */ | |
681 | ||
682 | struct glyph_matrix | |
683 | { | |
684 | /* The pool from which glyph memory is allocated, if any. This is | |
685 | null for frame matrices and for window matrices managing their | |
686 | own storage. */ | |
687 | struct glyph_pool *pool; | |
688 | ||
689 | /* Vector of glyph row structures. The row at nrows - 1 is reserved | |
690 | for the mode line. */ | |
691 | struct glyph_row *rows; | |
692 | ||
693 | /* Number of elements allocated for the vector rows above. */ | |
0065d054 | 694 | ptrdiff_t rows_allocated; |
5f5c8ee5 GM |
695 | |
696 | /* The number of rows used by the window if all lines were displayed | |
697 | with the smallest possible character height. */ | |
698 | int nrows; | |
699 | ||
700 | /* Origin within the frame matrix if this is a window matrix on a | |
701 | frame having a frame matrix. Both values are zero for | |
702 | window-based redisplay. */ | |
703 | int matrix_x, matrix_y; | |
704 | ||
705 | /* Width and height of the matrix in columns and rows. */ | |
706 | int matrix_w, matrix_h; | |
707 | ||
6df72db9 | 708 | /* If this structure describes a window matrix of window W, |
880e6158 MR |
709 | window_pixel_left is the value of W->pixel_left, window_pixel_top |
710 | the value of W->pixel_top, window_height and window_width are width | |
711 | and height of W, as returned by window_box, and window_vscroll is | |
712 | the value of W->vscroll at the time the matrix was last adjusted. | |
87388f9d | 713 | Only set for window-based redisplay. */ |
880e6158 | 714 | int window_pixel_left, window_pixel_top; |
87388f9d KS |
715 | int window_height, window_width; |
716 | int window_vscroll; | |
5f5c8ee5 GM |
717 | |
718 | /* Number of glyphs reserved for left and right marginal areas when | |
719 | the matrix was last adjusted. */ | |
720 | int left_margin_glyphs, right_margin_glyphs; | |
721 | ||
722 | /* Flag indicating that scrolling should not be tried in | |
723 | update_window. This flag is set by functions like try_window_id | |
724 | which do their own scrolling. */ | |
96c06863 | 725 | bool_bf no_scrolling_p : 1; |
5f5c8ee5 | 726 | |
96c06863 | 727 | /* True means window displayed in this matrix has a header |
5f5c8ee5 | 728 | line. */ |
96c06863 | 729 | bool_bf header_line_p : 1; |
5f5c8ee5 | 730 | |
e509cfa6 | 731 | #ifdef GLYPH_DEBUG |
5f5c8ee5 GM |
732 | /* A string identifying the method used to display the matrix. */ |
733 | char method[512]; | |
734 | #endif | |
2201e367 | 735 | |
a36d22d2 GM |
736 | /* The buffer this matrix displays. Set in |
737 | mark_window_display_accurate_1. */ | |
2201e367 GM |
738 | struct buffer *buffer; |
739 | ||
a36d22d2 GM |
740 | /* Values of BEGV and ZV as of last redisplay. Set in |
741 | mark_window_display_accurate_1. */ | |
59ea14cd | 742 | ptrdiff_t begv, zv; |
5f5c8ee5 GM |
743 | }; |
744 | ||
745 | ||
746 | /* Check that glyph pointers stored in glyph rows of MATRIX are okay. | |
747 | This aborts if any pointer is found twice. */ | |
748 | ||
e509cfa6 | 749 | #ifdef GLYPH_DEBUG |
383e0970 | 750 | void check_matrix_pointer_lossage (struct glyph_matrix *); |
5f5c8ee5 GM |
751 | #define CHECK_MATRIX(MATRIX) check_matrix_pointer_lossage ((MATRIX)) |
752 | #else | |
96c06863 | 753 | #define CHECK_MATRIX(MATRIX) ((void) 0) |
5f5c8ee5 GM |
754 | #endif |
755 | ||
756 | ||
757 | \f | |
758 | /*********************************************************************** | |
759 | Glyph Rows | |
760 | ***********************************************************************/ | |
761 | ||
b782773b | 762 | /* Area in window glyph matrix. */ |
5f5c8ee5 GM |
763 | |
764 | enum glyph_row_area | |
765 | { | |
c3c4768d | 766 | ANY_AREA = -1, |
5f5c8ee5 GM |
767 | LEFT_MARGIN_AREA, |
768 | TEXT_AREA, | |
769 | RIGHT_MARGIN_AREA, | |
770 | LAST_AREA | |
771 | }; | |
772 | ||
773 | ||
774 | /* Rows of glyphs in a windows or frame glyph matrix. | |
775 | ||
776 | Each row is partitioned into three areas. The start and end of | |
777 | each area is recorded in a pointer as shown below. | |
177c0ea7 | 778 | |
5f5c8ee5 GM |
779 | +--------------------+-------------+---------------------+ |
780 | | left margin area | text area | right margin area | | |
781 | +--------------------+-------------+---------------------+ | |
782 | | | | | | |
783 | glyphs[LEFT_MARGIN_AREA] glyphs[RIGHT_MARGIN_AREA] | |
784 | | | | |
785 | glyphs[TEXT_AREA] | | |
177c0ea7 | 786 | glyphs[LAST_AREA] |
5f5c8ee5 GM |
787 | |
788 | Rows in frame matrices reference glyph memory allocated in a frame | |
789 | glyph pool (see the description of struct glyph_pool). Rows in | |
790 | window matrices on frames having frame matrices reference slices of | |
791 | the glyphs of corresponding rows in the frame matrix. | |
177c0ea7 | 792 | |
5f5c8ee5 GM |
793 | Rows in window matrices on frames having no frame matrices point to |
794 | glyphs allocated from the heap via xmalloc; | |
795 | glyphs[LEFT_MARGIN_AREA] is the start address of the allocated | |
ec7bc82f DA |
796 | glyph structure array. |
797 | ||
798 | NOTE: layout of first four members of this structure is important, | |
799 | see clear_glyph_row and copy_row_except_pointers to check why. */ | |
5f5c8ee5 GM |
800 | |
801 | struct glyph_row | |
802 | { | |
803 | /* Pointers to beginnings of areas. The end of an area A is found at | |
804 | A + 1 in the vector. The last element of the vector is the end | |
805 | of the whole row. | |
806 | ||
807 | Kludge alert: Even if used[TEXT_AREA] == 0, glyphs[TEXT_AREA][0]'s | |
808 | position field is used. It is -1 if this row does not correspond | |
809 | to any text; it is some buffer position if the row corresponds to | |
810 | an empty display line that displays a line end. This is what old | |
811 | redisplay used to do. (Except in code for terminal frames, this | |
54bff0bd | 812 | kludge is no longer used, I believe. --gerd). |
5f5c8ee5 GM |
813 | |
814 | See also start, end, displays_text_p and ends_at_zv_p for cleaner | |
815 | ways to do it. The special meaning of positions 0 and -1 will be | |
816 | removed some day, so don't use it in new code. */ | |
817 | struct glyph *glyphs[1 + LAST_AREA]; | |
818 | ||
ec7bc82f DA |
819 | /* Number of glyphs actually filled in areas. This could have size |
820 | LAST_AREA, but it's 1 + LAST_AREA to simplify offset calculations. */ | |
821 | short used[1 + LAST_AREA]; | |
822 | ||
823 | /* Hash code. This hash code is available as soon as the row | |
824 | is constructed, i.e. after a call to display_line. */ | |
825 | unsigned hash; | |
5f5c8ee5 GM |
826 | |
827 | /* Window-relative x and y-position of the top-left corner of this | |
1ea40aa2 | 828 | row. If y < 0, this means that eabs (y) pixels of the row are |
5f5c8ee5 | 829 | invisible because it is partially visible at the top of a window. |
1ea40aa2 | 830 | If x < 0, this means that eabs (x) pixels of the first glyph of |
5f5c8ee5 GM |
831 | the text area of the row are invisible because the glyph is |
832 | partially visible. */ | |
833 | int x, y; | |
834 | ||
835 | /* Width of the row in pixels without taking face extension at the | |
6332ca8a GM |
836 | end of the row into account, and without counting truncation |
837 | and continuation glyphs at the end of a row on ttys. */ | |
5f5c8ee5 GM |
838 | int pixel_width; |
839 | ||
2febf6e0 GM |
840 | /* Logical ascent/height of this line. The value of ascent is zero |
841 | and height is 1 on terminal frames. */ | |
5f5c8ee5 GM |
842 | int ascent, height; |
843 | ||
2febf6e0 GM |
844 | /* Physical ascent/height of this line. If max_ascent > ascent, |
845 | this line overlaps the line above it on the display. Otherwise, | |
846 | if max_height > height, this line overlaps the line beneath it. */ | |
847 | int phys_ascent, phys_height; | |
848 | ||
5f5c8ee5 GM |
849 | /* Portion of row that is visible. Partially visible rows may be |
850 | found at the top and bottom of a window. This is 1 for tty | |
851 | frames. It may be < 0 in case of completely invisible rows. */ | |
852 | int visible_height; | |
853 | ||
db0c5a7d KS |
854 | /* Extra line spacing added after this row. Do not consider this |
855 | in last row when checking if row is fully visible. */ | |
856 | int extra_line_spacing; | |
857 | ||
5f5c8ee5 GM |
858 | /* First position in this row. This is the text position, including |
859 | overlay position information etc, where the display of this row | |
d36fe237 EZ |
860 | started, and can thus be less than the position of the first |
861 | glyph (e.g. due to invisible text or horizontal scrolling). | |
862 | BIDI Note: In R2L rows, that have its reversed_p flag set, this | |
863 | position is at or beyond the right edge of the row. */ | |
5f5c8ee5 GM |
864 | struct display_pos start; |
865 | ||
866 | /* Text position at the end of this row. This is the position after | |
867 | the last glyph on this row. It can be greater than the last | |
d36fe237 EZ |
868 | glyph position + 1, due to a newline that ends the line, |
869 | truncation, invisible text etc. In an up-to-date display, this | |
870 | should always be equal to the start position of the next row. | |
871 | BIDI Note: In R2L rows, this position is at or beyond the left | |
872 | edge of the row. */ | |
5f5c8ee5 GM |
873 | struct display_pos end; |
874 | ||
d36fe237 EZ |
875 | /* The smallest and the largest buffer positions that contributed to |
876 | glyphs in this row. Note that due to bidi reordering, these are | |
877 | in general different from the text positions stored in `start' | |
878 | and `end' members above, and also different from the buffer | |
879 | positions recorded in the glyphs displayed the leftmost and | |
880 | rightmost on the screen. */ | |
881 | struct text_pos minpos, maxpos; | |
882 | ||
e937c046 KS |
883 | /* Non-zero means the overlay arrow bitmap is on this line. |
884 | -1 means use default overlay arrow bitmap, else | |
885 | it specifies actual fringe bitmap number. */ | |
886 | int overlay_arrow_bitmap; | |
887 | ||
6b61353c KH |
888 | /* Left fringe bitmap number (enum fringe_bitmap_type). */ |
889 | unsigned left_user_fringe_bitmap : FRINGE_ID_BITS; | |
890 | ||
6b61353c KH |
891 | /* Right fringe bitmap number (enum fringe_bitmap_type). */ |
892 | unsigned right_user_fringe_bitmap : FRINGE_ID_BITS; | |
893 | ||
6b61353c KH |
894 | /* Left fringe bitmap number (enum fringe_bitmap_type). */ |
895 | unsigned left_fringe_bitmap : FRINGE_ID_BITS; | |
896 | ||
6b61353c KH |
897 | /* Right fringe bitmap number (enum fringe_bitmap_type). */ |
898 | unsigned right_fringe_bitmap : FRINGE_ID_BITS; | |
899 | ||
b3b08f03 KS |
900 | /* Face of the left fringe glyph. */ |
901 | unsigned left_user_fringe_face_id : FACE_ID_BITS; | |
902 | ||
903 | /* Face of the right fringe glyph. */ | |
904 | unsigned right_user_fringe_face_id : FACE_ID_BITS; | |
905 | ||
906 | /* Face of the left fringe glyph. */ | |
907 | unsigned left_fringe_face_id : FACE_ID_BITS; | |
908 | ||
6b61353c KH |
909 | /* Face of the right fringe glyph. */ |
910 | unsigned right_fringe_face_id : FACE_ID_BITS; | |
911 | ||
5a874e95 YM |
912 | /* Vertical offset of the left fringe bitmap. */ |
913 | signed left_fringe_offset : FRINGE_HEIGHT_BITS; | |
914 | ||
915 | /* Vertical offset of the right fringe bitmap. */ | |
916 | signed right_fringe_offset : FRINGE_HEIGHT_BITS; | |
917 | ||
96c06863 | 918 | /* True means that at least one of the left and right fringe bitmaps is |
e61124cd | 919 | periodic and thus depends on the y-position of the row. */ |
96c06863 | 920 | bool_bf fringe_bitmap_periodic_p : 1; |
e61124cd | 921 | |
96c06863 PE |
922 | /* True means that we must draw the bitmaps of this row. */ |
923 | bool_bf redraw_fringe_bitmaps_p : 1; | |
6b61353c | 924 | |
96c06863 PE |
925 | /* In a desired matrix, true means that this row must be updated. In a |
926 | current matrix, false means that the row has been invalidated, i.e. | |
5f5c8ee5 GM |
927 | the row's contents do not agree with what is visible on the |
928 | screen. */ | |
96c06863 | 929 | bool_bf enabled_p : 1; |
5f5c8ee5 | 930 | |
96c06863 | 931 | /* True means row displays a text line that is truncated on the left or |
5f5c8ee5 | 932 | right side. */ |
96c06863 PE |
933 | bool_bf truncated_on_left_p : 1; |
934 | bool_bf truncated_on_right_p : 1; | |
5f5c8ee5 | 935 | |
96c06863 | 936 | /* True means that this row displays a continued line, i.e. it has a |
5f5c8ee5 | 937 | continuation mark at the right side. */ |
96c06863 | 938 | bool_bf continued_p : 1; |
5f5c8ee5 | 939 | |
96c06863 | 940 | /* False means that this row does not contain any text, i.e., it is |
5f5c8ee5 | 941 | a blank line at the window and buffer end. */ |
96c06863 | 942 | bool_bf displays_text_p : 1; |
5f5c8ee5 | 943 | |
96c06863 PE |
944 | /* True means that this line ends at ZV. */ |
945 | bool_bf ends_at_zv_p : 1; | |
5f5c8ee5 | 946 | |
96c06863 | 947 | /* True means the face of the last glyph in the text area is drawn to |
5f5c8ee5 GM |
948 | the right end of the window. This flag is used in |
949 | update_text_area to optimize clearing to the end of the area. */ | |
96c06863 | 950 | bool_bf fill_line_p : 1; |
5f5c8ee5 | 951 | |
96c06863 | 952 | /* True means display a bitmap on X frames indicating that this |
5f5c8ee5 | 953 | line contains no text and ends in ZV. */ |
96c06863 | 954 | bool_bf indicate_empty_line_p : 1; |
5f5c8ee5 | 955 | |
96c06863 | 956 | /* True means this row contains glyphs that overlap each other because |
5f5c8ee5 | 957 | of lbearing or rbearing. */ |
96c06863 | 958 | bool_bf contains_overlapping_glyphs_p : 1; |
5f5c8ee5 | 959 | |
96c06863 | 960 | /* True means this row is as wide as the window it is displayed in, including |
afb7aabb | 961 | scroll bars, fringes, and internal borders. This also |
5f5c8ee5 | 962 | implies that the row doesn't have marginal areas. */ |
96c06863 | 963 | bool_bf full_width_p : 1; |
5f5c8ee5 | 964 | |
96c06863 PE |
965 | /* True means row is a mode or header-line. */ |
966 | bool_bf mode_line_p : 1; | |
5f5c8ee5 | 967 | |
96c06863 PE |
968 | /* True in a current row means this row is overlapped by another row. */ |
969 | bool_bf overlapped_p : 1; | |
2febf6e0 | 970 | |
96c06863 | 971 | /* True means this line ends in the middle of a character consisting |
666852af GM |
972 | of more than one glyph. Some glyphs have been put in this row, |
973 | the rest are put in rows below this one. */ | |
96c06863 | 974 | bool_bf ends_in_middle_of_char_p : 1; |
177c0ea7 | 975 | |
96c06863 | 976 | /* True means this line starts in the middle of a character consisting |
666852af | 977 | of more than one glyph. Some glyphs have been put in the |
54bff0bd | 978 | previous row, the rest are put in this row. */ |
96c06863 | 979 | bool_bf starts_in_middle_of_char_p : 1; |
666852af | 980 | |
96c06863 PE |
981 | /* True in a current row means this row overlaps others. */ |
982 | bool_bf overlapping_p : 1; | |
2febf6e0 | 983 | |
96c06863 PE |
984 | /* True means some glyphs in this row are displayed in mouse-face. */ |
985 | bool_bf mouse_face_p : 1; | |
48b509fe | 986 | |
96c06863 PE |
987 | /* True means this row was ended by a newline from a string. */ |
988 | bool_bf ends_in_newline_from_string_p : 1; | |
257e3f57 | 989 | |
96c06863 | 990 | /* True means this row width is exactly the width of the window, and the |
6b61353c | 991 | final newline character is hidden in the right fringe. */ |
96c06863 | 992 | bool_bf exact_window_width_line_p : 1; |
6b61353c | 993 | |
96c06863 PE |
994 | /* True means this row currently shows the cursor in the right fringe. */ |
995 | bool_bf cursor_in_fringe_p : 1; | |
6b61353c | 996 | |
96c06863 PE |
997 | /* True means the last glyph in the row is part of an ellipsis. */ |
998 | bool_bf ends_in_ellipsis_p : 1; | |
b437860a | 999 | |
96c06863 | 1000 | /* True means display a bitmap on X frames indicating that this |
6b61353c | 1001 | the first line of the buffer. */ |
96c06863 | 1002 | bool_bf indicate_bob_p : 1; |
6b61353c | 1003 | |
96c06863 | 1004 | /* True means display a bitmap on X frames indicating that this |
6b61353c | 1005 | the top line of the window, but not start of the buffer. */ |
96c06863 | 1006 | bool_bf indicate_top_line_p : 1; |
6b61353c | 1007 | |
96c06863 | 1008 | /* True means display a bitmap on X frames indicating that this |
6b61353c | 1009 | the last line of the buffer. */ |
96c06863 | 1010 | bool_bf indicate_eob_p : 1; |
6b61353c | 1011 | |
96c06863 | 1012 | /* True means display a bitmap on X frames indicating that this |
6b61353c | 1013 | the bottom line of the window, but not end of the buffer. */ |
96c06863 | 1014 | bool_bf indicate_bottom_line_p : 1; |
6b61353c | 1015 | |
96c06863 | 1016 | /* True means the row was reversed to display text in a |
c143c213 | 1017 | right-to-left paragraph. */ |
96c06863 | 1018 | bool_bf reversed_p : 1; |
c143c213 | 1019 | |
5f5c8ee5 GM |
1020 | /* Continuation lines width at the start of the row. */ |
1021 | int continuation_lines_width; | |
7cd30fff | 1022 | |
3e88ae62 | 1023 | #ifdef HAVE_WINDOW_SYSTEM |
7cd30fff KH |
1024 | /* Non-NULL means the current clipping area. This is temporarily |
1025 | set while exposing a region. Coordinates are frame-relative. */ | |
1026 | XRectangle *clip; | |
3e88ae62 | 1027 | #endif |
5f5c8ee5 GM |
1028 | }; |
1029 | ||
1030 | ||
1031 | /* Get a pointer to row number ROW in matrix MATRIX. If GLYPH_DEBUG | |
e509cfa6 DA |
1032 | is defined, the function matrix_row checks that we don't try to |
1033 | access rows that are out of bounds. */ | |
5f5c8ee5 | 1034 | |
e509cfa6 | 1035 | #ifdef GLYPH_DEBUG |
383e0970 | 1036 | struct glyph_row *matrix_row (struct glyph_matrix *, int); |
5f5c8ee5 GM |
1037 | #define MATRIX_ROW(MATRIX, ROW) matrix_row ((MATRIX), (ROW)) |
1038 | #else | |
1039 | #define MATRIX_ROW(MATRIX, ROW) ((MATRIX)->rows + (ROW)) | |
1040 | #endif | |
1041 | ||
177c0ea7 | 1042 | /* Return a pointer to the row reserved for the mode line in MATRIX. |
5f5c8ee5 GM |
1043 | Row MATRIX->nrows - 1 is always reserved for the mode line. */ |
1044 | ||
1045 | #define MATRIX_MODE_LINE_ROW(MATRIX) \ | |
1046 | ((MATRIX)->rows + (MATRIX)->nrows - 1) | |
1047 | ||
54bff0bd | 1048 | /* Return a pointer to the row reserved for the header line in MATRIX. |
5f5c8ee5 GM |
1049 | This is always the first row in MATRIX because that's the only |
1050 | way that works in frame-based redisplay. */ | |
1051 | ||
045dee35 | 1052 | #define MATRIX_HEADER_LINE_ROW(MATRIX) (MATRIX)->rows |
5f5c8ee5 GM |
1053 | |
1054 | /* Return a pointer to first row in MATRIX used for text display. */ | |
1055 | ||
1056 | #define MATRIX_FIRST_TEXT_ROW(MATRIX) \ | |
1057 | ((MATRIX)->rows->mode_line_p ? (MATRIX)->rows + 1 : (MATRIX)->rows) | |
1058 | ||
1059 | /* Return a pointer to the first glyph in the text area of a row. | |
1060 | MATRIX is the glyph matrix accessed, and ROW is the row index in | |
1061 | MATRIX. */ | |
1062 | ||
1063 | #define MATRIX_ROW_GLYPH_START(MATRIX, ROW) \ | |
1064 | (MATRIX_ROW ((MATRIX), (ROW))->glyphs[TEXT_AREA]) | |
1065 | ||
1066 | /* Return the number of used glyphs in the text area of a row. */ | |
177c0ea7 | 1067 | |
5f5c8ee5 GM |
1068 | #define MATRIX_ROW_USED(MATRIX, ROW) \ |
1069 | (MATRIX_ROW ((MATRIX), (ROW))->used[TEXT_AREA]) | |
1070 | ||
1071 | /* Return the character/ byte position at which the display of ROW | |
9c82e145 EZ |
1072 | starts. BIDI Note: this is the smallest character/byte position |
1073 | among characters in ROW, i.e. the first logical-order character | |
1074 | displayed by ROW, which is not necessarily the smallest horizontal | |
1075 | position. */ | |
177c0ea7 | 1076 | |
d36fe237 EZ |
1077 | #define MATRIX_ROW_START_CHARPOS(ROW) ((ROW)->minpos.charpos) |
1078 | #define MATRIX_ROW_START_BYTEPOS(ROW) ((ROW)->minpos.bytepos) | |
5f5c8ee5 | 1079 | |
9c82e145 EZ |
1080 | /* Return the character/ byte position at which ROW ends. BIDI Note: |
1081 | this is the largest character/byte position among characters in | |
1082 | ROW, i.e. the last logical-order character displayed by ROW, which | |
1083 | is not necessarily the largest horizontal position. */ | |
177c0ea7 | 1084 | |
d36fe237 EZ |
1085 | #define MATRIX_ROW_END_CHARPOS(ROW) ((ROW)->maxpos.charpos) |
1086 | #define MATRIX_ROW_END_BYTEPOS(ROW) ((ROW)->maxpos.bytepos) | |
5f5c8ee5 GM |
1087 | |
1088 | /* Return the vertical position of ROW in MATRIX. */ | |
177c0ea7 | 1089 | |
5f5c8ee5 GM |
1090 | #define MATRIX_ROW_VPOS(ROW, MATRIX) ((ROW) - (MATRIX)->rows) |
1091 | ||
1092 | /* Return the last glyph row + 1 in MATRIX on window W reserved for | |
1093 | text. If W has a mode line, the last row in the matrix is reserved | |
1094 | for it. */ | |
177c0ea7 | 1095 | |
5f5c8ee5 GM |
1096 | #define MATRIX_BOTTOM_TEXT_ROW(MATRIX, W) \ |
1097 | ((MATRIX)->rows \ | |
1098 | + (MATRIX)->nrows \ | |
1099 | - (WINDOW_WANTS_MODELINE_P ((W)) ? 1 : 0)) | |
1100 | ||
1101 | /* Non-zero if the face of the last glyph in ROW's text area has | |
1102 | to be drawn to the end of the text area. */ | |
177c0ea7 | 1103 | |
5f5c8ee5 GM |
1104 | #define MATRIX_ROW_EXTENDS_FACE_P(ROW) ((ROW)->fill_line_p) |
1105 | ||
1106 | /* Set and query the enabled_p flag of glyph row ROW in MATRIX. */ | |
177c0ea7 | 1107 | |
5f5c8ee5 | 1108 | #define SET_MATRIX_ROW_ENABLED_P(MATRIX, ROW, VALUE) \ |
96c06863 | 1109 | (MATRIX_ROW (MATRIX, ROW)->enabled_p = (VALUE)) |
177c0ea7 | 1110 | |
5f5c8ee5 | 1111 | #define MATRIX_ROW_ENABLED_P(MATRIX, ROW) \ |
96c06863 | 1112 | (MATRIX_ROW (MATRIX, ROW)->enabled_p) |
5f5c8ee5 GM |
1113 | |
1114 | /* Non-zero if ROW displays text. Value is non-zero if the row is | |
1115 | blank but displays a line end. */ | |
177c0ea7 | 1116 | |
5f5c8ee5 GM |
1117 | #define MATRIX_ROW_DISPLAYS_TEXT_P(ROW) ((ROW)->displays_text_p) |
1118 | ||
db0c5a7d KS |
1119 | |
1120 | /* Helper macros */ | |
1121 | ||
1122 | #define MR_PARTIALLY_VISIBLE(ROW) \ | |
1123 | ((ROW)->height != (ROW)->visible_height) | |
1124 | ||
1125 | #define MR_PARTIALLY_VISIBLE_AT_TOP(W, ROW) \ | |
1126 | ((ROW)->y < WINDOW_HEADER_LINE_HEIGHT ((W))) | |
1127 | ||
1128 | #define MR_PARTIALLY_VISIBLE_AT_BOTTOM(W, ROW) \ | |
1129 | (((ROW)->y + (ROW)->height - (ROW)->extra_line_spacing) \ | |
1130 | > WINDOW_BOX_HEIGHT_NO_MODE_LINE ((W))) | |
1131 | ||
5f5c8ee5 | 1132 | /* Non-zero if ROW is not completely visible in window W. */ |
177c0ea7 | 1133 | |
db0c5a7d KS |
1134 | #define MATRIX_ROW_PARTIALLY_VISIBLE_P(W, ROW) \ |
1135 | (MR_PARTIALLY_VISIBLE ((ROW)) \ | |
1136 | && (MR_PARTIALLY_VISIBLE_AT_TOP ((W), (ROW)) \ | |
1137 | || MR_PARTIALLY_VISIBLE_AT_BOTTOM ((W), (ROW)))) | |
1138 | ||
1139 | ||
5f5c8ee5 GM |
1140 | |
1141 | /* Non-zero if ROW is partially visible at the top of window W. */ | |
177c0ea7 | 1142 | |
5f5c8ee5 | 1143 | #define MATRIX_ROW_PARTIALLY_VISIBLE_AT_TOP_P(W, ROW) \ |
db0c5a7d KS |
1144 | (MR_PARTIALLY_VISIBLE ((ROW)) \ |
1145 | && MR_PARTIALLY_VISIBLE_AT_TOP ((W), (ROW))) | |
5f5c8ee5 GM |
1146 | |
1147 | /* Non-zero if ROW is partially visible at the bottom of window W. */ | |
177c0ea7 | 1148 | |
db0c5a7d KS |
1149 | #define MATRIX_ROW_PARTIALLY_VISIBLE_AT_BOTTOM_P(W, ROW) \ |
1150 | (MR_PARTIALLY_VISIBLE ((ROW)) \ | |
1151 | && MR_PARTIALLY_VISIBLE_AT_BOTTOM ((W), (ROW))) | |
5f5c8ee5 GM |
1152 | |
1153 | /* Return the bottom Y + 1 of ROW. */ | |
177c0ea7 | 1154 | |
5f5c8ee5 GM |
1155 | #define MATRIX_ROW_BOTTOM_Y(ROW) ((ROW)->y + (ROW)->height) |
1156 | ||
1157 | /* Is ROW the last visible one in the display described by the | |
1158 | iterator structure pointed to by IT?. */ | |
177c0ea7 | 1159 | |
5f5c8ee5 GM |
1160 | #define MATRIX_ROW_LAST_VISIBLE_P(ROW, IT) \ |
1161 | (MATRIX_ROW_BOTTOM_Y ((ROW)) >= (IT)->last_visible_y) | |
1162 | ||
1163 | /* Non-zero if ROW displays a continuation line. */ | |
1164 | ||
1165 | #define MATRIX_ROW_CONTINUATION_LINE_P(ROW) \ | |
1166 | ((ROW)->continuation_lines_width > 0) | |
1167 | ||
1168 | /* Non-zero if ROW ends in the middle of a character. This is the | |
1169 | case for continued lines showing only part of a display table entry | |
1170 | or a control char, or an overlay string. */ | |
1171 | ||
1172 | #define MATRIX_ROW_ENDS_IN_MIDDLE_OF_CHAR_P(ROW) \ | |
e6fb381c | 1173 | ((ROW)->end.dpvec_index > 0 \ |
666852af GM |
1174 | || (ROW)->end.overlay_string_index >= 0 \ |
1175 | || (ROW)->ends_in_middle_of_char_p) | |
5f5c8ee5 GM |
1176 | |
1177 | /* Non-zero if ROW ends in the middle of an overlay string. */ | |
1178 | ||
1179 | #define MATRIX_ROW_ENDS_IN_OVERLAY_STRING_P(ROW) \ | |
1180 | ((ROW)->end.overlay_string_index >= 0) | |
1181 | ||
1182 | /* Non-zero if ROW starts in the middle of a character. See above. */ | |
177c0ea7 | 1183 | |
5f5c8ee5 | 1184 | #define MATRIX_ROW_STARTS_IN_MIDDLE_OF_CHAR_P(ROW) \ |
e6fb381c | 1185 | ((ROW)->start.dpvec_index > 0 \ |
666852af | 1186 | || (ROW)->starts_in_middle_of_char_p \ |
5f5c8ee5 GM |
1187 | || ((ROW)->start.overlay_string_index >= 0 \ |
1188 | && (ROW)->start.string_pos.charpos > 0)) | |
1189 | ||
96c06863 | 1190 | /* True means ROW overlaps its predecessor. */ |
2febf6e0 GM |
1191 | |
1192 | #define MATRIX_ROW_OVERLAPS_PRED_P(ROW) \ | |
1193 | ((ROW)->phys_ascent > (ROW)->ascent) | |
1194 | ||
96c06863 | 1195 | /* True means ROW overlaps its successor. */ |
2febf6e0 GM |
1196 | |
1197 | #define MATRIX_ROW_OVERLAPS_SUCC_P(ROW) \ | |
1198 | ((ROW)->phys_height - (ROW)->phys_ascent \ | |
1199 | > (ROW)->height - (ROW)->ascent) | |
1200 | ||
5f5c8ee5 GM |
1201 | /* A glyph for a space. */ |
1202 | ||
1203 | extern struct glyph space_glyph; | |
1204 | ||
96c06863 | 1205 | /* True means last display completed. False means it was preempted. */ |
5f5c8ee5 | 1206 | |
59ea14cd | 1207 | extern bool display_completed; |
5f5c8ee5 | 1208 | |
5f5c8ee5 GM |
1209 | |
1210 | \f | |
d5cc60b8 KS |
1211 | /************************************************************************ |
1212 | Glyph Strings | |
1213 | ************************************************************************/ | |
1214 | ||
1215 | /* Enumeration for overriding/changing the face to use for drawing | |
d74b2553 | 1216 | glyphs in draw_glyphs. */ |
d5cc60b8 KS |
1217 | |
1218 | enum draw_glyphs_face | |
1219 | { | |
1220 | DRAW_NORMAL_TEXT, | |
1221 | DRAW_INVERSE_VIDEO, | |
1222 | DRAW_CURSOR, | |
1223 | DRAW_MOUSE_FACE, | |
1224 | DRAW_IMAGE_RAISED, | |
1225 | DRAW_IMAGE_SUNKEN | |
1226 | }; | |
1227 | ||
79fa9e0f KS |
1228 | #ifdef HAVE_WINDOW_SYSTEM |
1229 | ||
d5cc60b8 KS |
1230 | /* A sequence of glyphs to be drawn in the same face. */ |
1231 | ||
1232 | struct glyph_string | |
1233 | { | |
1234 | /* X-origin of the string. */ | |
1235 | int x; | |
1236 | ||
1237 | /* Y-origin and y-position of the base line of this string. */ | |
1238 | int y, ybase; | |
1239 | ||
1240 | /* The width of the string, not including a face extension. */ | |
1241 | int width; | |
1242 | ||
1243 | /* The width of the string, including a face extension. */ | |
1244 | int background_width; | |
1245 | ||
1246 | /* The height of this string. This is the height of the line this | |
1247 | string is drawn in, and can be different from the height of the | |
1248 | font the string is drawn in. */ | |
1249 | int height; | |
1250 | ||
1251 | /* Number of pixels this string overwrites in front of its x-origin. | |
1252 | This number is zero if the string has an lbearing >= 0; it is | |
1253 | -lbearing, if the string has an lbearing < 0. */ | |
1254 | int left_overhang; | |
1255 | ||
1256 | /* Number of pixels this string overwrites past its right-most | |
1257 | nominal x-position, i.e. x + width. Zero if the string's | |
1258 | rbearing is <= its nominal width, rbearing - width otherwise. */ | |
1259 | int right_overhang; | |
1260 | ||
1261 | /* The frame on which the glyph string is drawn. */ | |
1262 | struct frame *f; | |
1263 | ||
1264 | /* The window on which the glyph string is drawn. */ | |
1265 | struct window *w; | |
1266 | ||
1267 | /* X display and window for convenience. */ | |
1268 | Display *display; | |
1269 | Window window; | |
1270 | ||
1271 | /* The glyph row for which this string was built. It determines the | |
1272 | y-origin and height of the string. */ | |
1273 | struct glyph_row *row; | |
1274 | ||
1275 | /* The area within row. */ | |
1276 | enum glyph_row_area area; | |
1277 | ||
1278 | /* Characters to be drawn, and number of characters. */ | |
1279 | XChar2b *char2b; | |
1280 | int nchars; | |
1281 | ||
1282 | /* A face-override for drawing cursors, mouse face and similar. */ | |
1283 | enum draw_glyphs_face hl; | |
1284 | ||
1285 | /* Face in which this string is to be drawn. */ | |
1286 | struct face *face; | |
1287 | ||
1288 | /* Font in which this string is to be drawn. */ | |
93cf902a | 1289 | struct font *font; |
d5cc60b8 | 1290 | |
a88c7fcd KH |
1291 | /* Non-null means this string describes (part of) a static |
1292 | composition. */ | |
d5cc60b8 KS |
1293 | struct composition *cmp; |
1294 | ||
a88c7fcd | 1295 | /* If not negative, this string describes a compos. */ |
ebfa62c0 | 1296 | ptrdiff_t cmp_id; |
a88c7fcd KH |
1297 | |
1298 | /* Start and end glyph indices in a glyph-string. */ | |
1299 | int cmp_from, cmp_to; | |
d5cc60b8 | 1300 | |
96c06863 | 1301 | /* True means this glyph strings face has to be drawn to the right end |
d5cc60b8 | 1302 | of the window's drawing area. */ |
96c06863 | 1303 | bool_bf extends_to_end_of_line_p : 1; |
d5cc60b8 | 1304 | |
96c06863 PE |
1305 | /* True means the background of this string has been drawn. */ |
1306 | bool_bf background_filled_p : 1; | |
d5cc60b8 | 1307 | |
96c06863 PE |
1308 | /* True means glyph string must be drawn with 16-bit functions. */ |
1309 | bool_bf two_byte_p : 1; | |
d5cc60b8 | 1310 | |
96c06863 | 1311 | /* True means that the original font determined for drawing this glyph |
d5cc60b8 KS |
1312 | string could not be loaded. The member `font' has been set to |
1313 | the frame's default font in this case. */ | |
96c06863 | 1314 | bool_bf font_not_found_p : 1; |
d5cc60b8 | 1315 | |
96c06863 | 1316 | /* True means that the face in which this glyph string is drawn has a |
d5cc60b8 | 1317 | stipple pattern. */ |
96c06863 | 1318 | bool_bf stippled_p : 1; |
d5cc60b8 | 1319 | |
10a07952 YM |
1320 | #define OVERLAPS_PRED (1 << 0) |
1321 | #define OVERLAPS_SUCC (1 << 1) | |
1322 | #define OVERLAPS_BOTH (OVERLAPS_PRED | OVERLAPS_SUCC) | |
1323 | #define OVERLAPS_ERASED_CURSOR (1 << 2) | |
1324 | /* Non-zero means only the foreground of this glyph string must be | |
1325 | drawn, and we should use the physical height of the line this | |
1326 | glyph string appears in as clip rect. If the value is | |
1327 | OVERLAPS_ERASED_CURSOR, the clip rect is restricted to the rect | |
1328 | of the erased cursor. OVERLAPS_PRED and OVERLAPS_SUCC mean we | |
1329 | draw overlaps with the preceding and the succeeding rows, | |
1330 | respectively. */ | |
1331 | unsigned for_overlaps : 3; | |
d5cc60b8 | 1332 | |
96c06863 | 1333 | /* True means that all glyphs in this glyph string has the flag |
ae185452 KH |
1334 | padding_p set, and thus must be drawn one by one to have 1-pixel |
1335 | width even though the logical width in the font is zero. */ | |
96c06863 | 1336 | bool_bf padding_p : 1; |
ae185452 | 1337 | |
d5cc60b8 | 1338 | /* The GC to use for drawing this glyph string. */ |
5e617bc2 | 1339 | #if defined (HAVE_X_WINDOWS) |
d5cc60b8 KS |
1340 | GC gc; |
1341 | #endif | |
5e617bc2 | 1342 | #if defined (HAVE_NTGUI) |
d5cc60b8 KS |
1343 | XGCValues *gc; |
1344 | HDC hdc; | |
1345 | #endif | |
1346 | ||
1347 | /* A pointer to the first glyph in the string. This glyph | |
1348 | corresponds to char2b[0]. Needed to draw rectangles if | |
96c06863 | 1349 | font_not_found_p is true. */ |
d5cc60b8 KS |
1350 | struct glyph *first_glyph; |
1351 | ||
1352 | /* Image, if any. */ | |
1353 | struct image *img; | |
1354 | ||
0633d52c KS |
1355 | /* Slice */ |
1356 | struct glyph_slice slice; | |
1357 | ||
8c2da0fa ST |
1358 | /* Non-null means the horizontal clipping region starts from the |
1359 | left edge of *clip_head, and ends with the right edge of | |
1360 | *clip_tail, not including their overhangs. */ | |
1361 | struct glyph_string *clip_head, *clip_tail; | |
1362 | ||
7cd30fff KH |
1363 | /* The current clipping areas. */ |
1364 | NativeRectangle clip[2]; | |
1365 | ||
1366 | /* Number of clipping areas. */ | |
1367 | int num_clips; | |
8443e69e | 1368 | |
93cf902a KH |
1369 | int underline_position; |
1370 | ||
1371 | int underline_thickness; | |
1372 | ||
d5cc60b8 KS |
1373 | struct glyph_string *next, *prev; |
1374 | }; | |
1375 | ||
79fa9e0f | 1376 | #endif /* HAVE_WINDOW_SYSTEM */ |
d5cc60b8 KS |
1377 | |
1378 | \f | |
5f5c8ee5 GM |
1379 | /************************************************************************ |
1380 | Display Dimensions | |
1381 | ************************************************************************/ | |
1382 | ||
1383 | /* Return the height of the mode line in glyph matrix MATRIX, or zero | |
1384 | if not known. This macro is called under circumstances where | |
1385 | MATRIX might not have been allocated yet. */ | |
1386 | ||
1387 | #define MATRIX_MODE_LINE_HEIGHT(MATRIX) \ | |
1388 | ((MATRIX) && (MATRIX)->rows \ | |
1389 | ? MATRIX_MODE_LINE_ROW (MATRIX)->height \ | |
1390 | : 0) | |
1391 | ||
54bff0bd | 1392 | /* Return the height of the header line in glyph matrix MATRIX, or zero |
5f5c8ee5 GM |
1393 | if not known. This macro is called under circumstances where |
1394 | MATRIX might not have been allocated yet. */ | |
1395 | ||
045dee35 | 1396 | #define MATRIX_HEADER_LINE_HEIGHT(MATRIX) \ |
5f5c8ee5 | 1397 | ((MATRIX) && (MATRIX)->rows \ |
045dee35 | 1398 | ? MATRIX_HEADER_LINE_ROW (MATRIX)->height \ |
5f5c8ee5 GM |
1399 | : 0) |
1400 | ||
a4610492 KS |
1401 | /* Return the desired face id for the mode line of a window, depending |
1402 | on whether the window is selected or not, or if the window is the | |
1403 | scrolling window for the currently active minibuffer window. | |
1404 | ||
1405 | Due to the way display_mode_lines manipulates with the contents of | |
1406 | selected_window, this macro needs three arguments: SELW which is | |
1407 | compared against the current value of selected_window, MBW which is | |
1408 | compared against minibuf_window (if SELW doesn't match), and SCRW | |
5705966b | 1409 | which is compared against minibuf_selected_window (if MBW matches). */ |
a4610492 KS |
1410 | |
1411 | #define CURRENT_MODE_LINE_FACE_ID_3(SELW, MBW, SCRW) \ | |
5f380a5b | 1412 | ((!mode_line_in_non_selected_windows \ |
a4610492 | 1413 | || (SELW) == XWINDOW (selected_window) \ |
5f380a5b | 1414 | || (minibuf_level > 0 \ |
5705966b | 1415 | && !NILP (minibuf_selected_window) \ |
5f380a5b | 1416 | && (MBW) == XWINDOW (minibuf_window) \ |
5705966b | 1417 | && (SCRW) == XWINDOW (minibuf_selected_window))) \ |
a4610492 KS |
1418 | ? MODE_LINE_FACE_ID \ |
1419 | : MODE_LINE_INACTIVE_FACE_ID) | |
1420 | ||
1421 | ||
1422 | /* Return the desired face id for the mode line of window W. */ | |
f6911ea7 KS |
1423 | |
1424 | #define CURRENT_MODE_LINE_FACE_ID(W) \ | |
a4610492 | 1425 | (CURRENT_MODE_LINE_FACE_ID_3((W), XWINDOW (selected_window), (W))) |
f6911ea7 | 1426 | |
b9695828 DA |
1427 | /* Return the current height of the mode line of window W. If not known |
1428 | from W->mode_line_height, look at W's current glyph matrix, or return | |
1429 | a default based on the height of the font of the face `mode-line'. */ | |
1430 | ||
1431 | #define CURRENT_MODE_LINE_HEIGHT(W) \ | |
1432 | (W->mode_line_height >= 0 \ | |
1433 | ? W->mode_line_height \ | |
1434 | : (W->mode_line_height \ | |
1435 | = (MATRIX_MODE_LINE_HEIGHT (W->current_matrix) \ | |
1436 | ? MATRIX_MODE_LINE_HEIGHT (W->current_matrix) \ | |
1437 | : estimate_mode_line_height \ | |
1438 | (XFRAME (W->frame), CURRENT_MODE_LINE_FACE_ID (W))))) | |
1439 | ||
1440 | /* Return the current height of the header line of window W. If not known | |
1441 | from W->header_line_height, look at W's current glyph matrix, or return | |
1442 | an estimation based on the height of the font of the face `header-line'. */ | |
e9e32f46 GM |
1443 | |
1444 | #define CURRENT_HEADER_LINE_HEIGHT(W) \ | |
b9695828 DA |
1445 | (W->header_line_height >= 0 \ |
1446 | ? W->header_line_height \ | |
1447 | : (W->header_line_height \ | |
1448 | = (MATRIX_HEADER_LINE_HEIGHT (W->current_matrix) \ | |
1449 | ? MATRIX_HEADER_LINE_HEIGHT (W->current_matrix) \ | |
1450 | : estimate_mode_line_height \ | |
1451 | (XFRAME (W->frame), HEADER_LINE_FACE_ID)))) | |
5f5c8ee5 GM |
1452 | |
1453 | /* Return the height of the desired mode line of window W. */ | |
1454 | ||
1455 | #define DESIRED_MODE_LINE_HEIGHT(W) \ | |
1456 | MATRIX_MODE_LINE_HEIGHT ((W)->desired_matrix) | |
1457 | ||
54bff0bd | 1458 | /* Return the height of the desired header line of window W. */ |
5f5c8ee5 | 1459 | |
045dee35 GM |
1460 | #define DESIRED_HEADER_LINE_HEIGHT(W) \ |
1461 | MATRIX_HEADER_LINE_HEIGHT ((W)->desired_matrix) | |
5f5c8ee5 | 1462 | |
880e6158 MR |
1463 | /* PXW: The height checks below serve to show at least one text line |
1464 | instead of a mode- and/or header line when a window gets very small. | |
1465 | But (1) the check fails when the mode- or header-line is taller than | |
1466 | the associated frame's line height and (2) we don't care much about | |
1467 | text visibility anyway when shrinking a frame containing a toolbar. | |
5f5c8ee5 | 1468 | |
880e6158 MR |
1469 | So maybe these checks should be removed and any clipping left to the |
1470 | window manager. */ | |
5f5c8ee5 | 1471 | |
f224e500 PE |
1472 | /* Value is true if window W wants a mode line and is large enough |
1473 | to accommodate it. */ | |
880e6158 | 1474 | #define WINDOW_WANTS_MODELINE_P(W) \ |
5bebd186 | 1475 | (BUFFERP ((W)->contents) \ |
880e6158 | 1476 | ? (!MINI_WINDOW_P (W) \ |
5bebd186 | 1477 | && !(W)->pseudo_window_p \ |
880e6158 MR |
1478 | && FRAME_WANTS_MODELINE_P (XFRAME (WINDOW_FRAME (W))) \ |
1479 | && !NILP (BVAR (XBUFFER ((W)->contents), mode_line_format)) \ | |
1480 | && WINDOW_PIXEL_HEIGHT (W) > WINDOW_FRAME_LINE_HEIGHT (W)) \ | |
96c06863 | 1481 | : false) |
d74b2553 | 1482 | |
f224e500 PE |
1483 | /* Value is true if window W wants a header line and is large enough |
1484 | to accommodate it. */ | |
880e6158 MR |
1485 | #define WINDOW_WANTS_HEADER_LINE_P(W) \ |
1486 | (BUFFERP ((W)->contents) \ | |
1487 | ? (!MINI_WINDOW_P (W) \ | |
1488 | && !(W)->pseudo_window_p \ | |
1489 | && FRAME_WANTS_MODELINE_P (XFRAME (WINDOW_FRAME (W))) \ | |
1490 | && !NILP (BVAR (XBUFFER ((W)->contents), header_line_format)) \ | |
1491 | && (WINDOW_PIXEL_HEIGHT (W) \ | |
1492 | > (WINDOW_WANTS_MODELINE_P (W) \ | |
1493 | ? (2 * WINDOW_FRAME_LINE_HEIGHT (W)) \ | |
1494 | : WINDOW_FRAME_LINE_HEIGHT (W)))) \ | |
96c06863 | 1495 | : false) |
880e6158 | 1496 | |
d74b2553 KS |
1497 | /* Return proper value to be used as baseline offset of font that has |
1498 | ASCENT and DESCENT to draw characters by the font at the vertical | |
1499 | center of the line of frame F. | |
1500 | ||
1501 | Here, our task is to find the value of BOFF in the following figure; | |
1502 | ||
1503 | -------------------------+-----------+- | |
1504 | -+-+---------+-+ | | | |
1505 | | | | | | | | |
1506 | | | | | F_ASCENT F_HEIGHT | |
1507 | | | | ASCENT | | | |
1508 | HEIGHT | | | | | | |
1509 | | | |-|-+------+-----------|------- baseline | |
1510 | | | | | BOFF | | | |
1511 | | |---------|-+-+ | | | |
1512 | | | | DESCENT | | | |
1513 | -+-+---------+-+ F_DESCENT | | |
1514 | -------------------------+-----------+- | |
1515 | ||
1516 | -BOFF + DESCENT + (F_HEIGHT - HEIGHT) / 2 = F_DESCENT | |
1517 | BOFF = DESCENT + (F_HEIGHT - HEIGHT) / 2 - F_DESCENT | |
1518 | DESCENT = FONT->descent | |
1519 | HEIGHT = FONT_HEIGHT (FONT) | |
87388f9d | 1520 | F_DESCENT = (FRAME_FONT (F)->descent |
6ed8eeff | 1521 | - F->terminal->output_data.x->baseline_offset) |
d74b2553 KS |
1522 | F_HEIGHT = FRAME_LINE_HEIGHT (F) |
1523 | */ | |
1524 | ||
1525 | #define VCENTER_BASELINE_OFFSET(FONT, F) \ | |
1526 | (FONT_DESCENT (FONT) \ | |
1527 | + (FRAME_LINE_HEIGHT ((F)) - FONT_HEIGHT ((FONT)) \ | |
1528 | + (FRAME_LINE_HEIGHT ((F)) > FONT_HEIGHT ((FONT)))) / 2 \ | |
1529 | - (FONT_DESCENT (FRAME_FONT (F)) - FRAME_BASELINE_OFFSET (F))) | |
1530 | ||
177c0ea7 | 1531 | \f |
5f5c8ee5 GM |
1532 | /*********************************************************************** |
1533 | Faces | |
1534 | ***********************************************************************/ | |
177c0ea7 | 1535 | |
5f5c8ee5 GM |
1536 | /* Indices of face attributes in Lisp face vectors. Slot zero is the |
1537 | symbol `face'. */ | |
1538 | ||
1539 | enum lface_attribute_index | |
1540 | { | |
1541 | LFACE_FAMILY_INDEX = 1, | |
ff63b086 | 1542 | LFACE_FOUNDRY_INDEX, |
5f5c8ee5 GM |
1543 | LFACE_SWIDTH_INDEX, |
1544 | LFACE_HEIGHT_INDEX, | |
1545 | LFACE_WEIGHT_INDEX, | |
1546 | LFACE_SLANT_INDEX, | |
1547 | LFACE_UNDERLINE_INDEX, | |
1548 | LFACE_INVERSE_INDEX, | |
1549 | LFACE_FOREGROUND_INDEX, | |
1550 | LFACE_BACKGROUND_INDEX, | |
1551 | LFACE_STIPPLE_INDEX, | |
1552 | LFACE_OVERLINE_INDEX, | |
1553 | LFACE_STRIKE_THROUGH_INDEX, | |
1554 | LFACE_BOX_INDEX, | |
b3091a23 | 1555 | LFACE_FONT_INDEX, |
cd68bbe8 | 1556 | LFACE_INHERIT_INDEX, |
0ba42da6 | 1557 | LFACE_FONTSET_INDEX, |
3c334c14 | 1558 | LFACE_DISTANT_FOREGROUND_INDEX, |
5f5c8ee5 GM |
1559 | LFACE_VECTOR_SIZE |
1560 | }; | |
1561 | ||
1562 | ||
1563 | /* Box types of faces. */ | |
1564 | ||
1565 | enum face_box_type | |
1566 | { | |
1567 | /* No box around text. */ | |
1568 | FACE_NO_BOX, | |
1569 | ||
1570 | /* Simple box of specified width and color. Default width is 1, and | |
1571 | default color is the foreground color of the face. */ | |
1572 | FACE_SIMPLE_BOX, | |
1573 | ||
1574 | /* Boxes with 3D shadows. Color equals the background color of the | |
1575 | face. Width is specified. */ | |
1576 | FACE_RAISED_BOX, | |
1577 | FACE_SUNKEN_BOX | |
1578 | }; | |
1579 | ||
9b0e3eba AA |
1580 | /* Underline type. */ |
1581 | ||
1582 | enum face_underline_type | |
1583 | { | |
1584 | FACE_UNDER_LINE, | |
1585 | FACE_UNDER_WAVE | |
1586 | }; | |
5f5c8ee5 GM |
1587 | |
1588 | /* Structure describing a realized face. | |
1589 | ||
1590 | For each Lisp face, 0..N realized faces can exist for different | |
1591 | frames and different charsets. Realized faces are built from Lisp | |
1592 | faces and text properties/overlays by merging faces and adding | |
1593 | unspecified attributes from the `default' face. */ | |
1594 | ||
9f2279ad | 1595 | struct face |
5f5c8ee5 | 1596 | { |
5d3311e5 DA |
1597 | /* The Lisp face attributes this face realizes. All attributes |
1598 | in this vector are non-nil. */ | |
1599 | Lisp_Object lface[LFACE_VECTOR_SIZE]; | |
1600 | ||
5f5c8ee5 GM |
1601 | /* The id of this face. The id equals the index of this face in the |
1602 | vector faces_by_id of its face cache. */ | |
1603 | int id; | |
1604 | ||
1605 | #ifdef HAVE_WINDOW_SYSTEM | |
177c0ea7 | 1606 | |
8016e514 EZ |
1607 | /* If non-zero, this is a GC that we can use without modification for |
1608 | drawing the characters in this face. */ | |
5f5c8ee5 | 1609 | GC gc; |
177c0ea7 | 1610 | |
831fefca GM |
1611 | /* Background stipple or bitmap used for this face. This is |
1612 | an id as returned from load_pixmap. */ | |
0766b489 | 1613 | ptrdiff_t stipple; |
5f5c8ee5 | 1614 | |
5f5c8ee5 GM |
1615 | #endif /* not HAVE_WINDOW_SYSTEM */ |
1616 | ||
1617 | /* Pixel value of foreground color for X frames. Color index | |
1618 | for tty frames. */ | |
1619 | unsigned long foreground; | |
177c0ea7 | 1620 | |
5f5c8ee5 GM |
1621 | /* Pixel value or color index of background color. */ |
1622 | unsigned long background; | |
1623 | ||
1624 | /* Pixel value or color index of underline color. */ | |
1625 | unsigned long underline_color; | |
1626 | ||
1627 | /* Pixel value or color index of overlined, strike-through, or box | |
1628 | color. */ | |
1629 | unsigned long overline_color; | |
1630 | unsigned long strike_through_color; | |
1631 | unsigned long box_color; | |
1632 | ||
93cf902a | 1633 | struct font *font; |
8443e69e | 1634 | |
da78062b KH |
1635 | /* Fontset ID if for this face's fontset. Non-ASCII faces derived |
1636 | from the same ASCII face have the same fontset. */ | |
5f5c8ee5 | 1637 | int fontset; |
177c0ea7 | 1638 | |
cbf8a8c7 EZ |
1639 | /* Non-zero means characters in this face have a box of that |
1640 | thickness around them. If this value is negative, its absolute | |
1641 | value indicates the thickness, and the horizontal (top and | |
1642 | bottom) borders of box are drawn inside of the character glyphs' | |
1643 | area. The vertical (left and right) borders of the box are drawn | |
1644 | in the same way as when this value is positive. */ | |
5f5c8ee5 GM |
1645 | int box_line_width; |
1646 | ||
1647 | /* Type of box drawn. A value of FACE_NO_BOX means no box is drawn | |
1648 | around text in this face. A value of FACE_SIMPLE_BOX means a box | |
1649 | of width box_line_width is drawn in color box_color. A value of | |
1650 | FACE_RAISED_BOX or FACE_SUNKEN_BOX means a 3D box is drawn with | |
1651 | shadow colors derived from the background color of the face. */ | |
5d3311e5 | 1652 | ENUM_BF (face_box_type) box : 2; |
5f5c8ee5 | 1653 | |
ad60824e | 1654 | /* Style of underlining. */ |
5d3311e5 | 1655 | ENUM_BF (face_underline_type) underline_type : 1; |
ad60824e | 1656 | |
96c06863 | 1657 | /* If `box' above specifies a 3D type, true means use box_color for |
5f5c8ee5 | 1658 | drawing shadows. */ |
96c06863 | 1659 | bool_bf use_box_color_for_shadows_p : 1; |
5f5c8ee5 | 1660 | |
5f5c8ee5 GM |
1661 | /* Non-zero if text in this face should be underlined, overlined, |
1662 | strike-through or have a box drawn around it. */ | |
96c06863 PE |
1663 | bool_bf underline_p : 1; |
1664 | bool_bf overline_p : 1; | |
1665 | bool_bf strike_through_p : 1; | |
5f5c8ee5 | 1666 | |
96c06863 | 1667 | /* True means that the colors specified for this face could not be |
5f5c8ee5 GM |
1668 | loaded, and were replaced by default colors, so they shouldn't be |
1669 | freed. */ | |
96c06863 PE |
1670 | bool_bf foreground_defaulted_p : 1; |
1671 | bool_bf background_defaulted_p : 1; | |
5f5c8ee5 | 1672 | |
96c06863 | 1673 | /* True means that either no color is specified for underlining or that |
28b927d8 | 1674 | the specified color couldn't be loaded. Use the foreground |
5f5c8ee5 | 1675 | color when drawing in that case. */ |
96c06863 | 1676 | bool_bf underline_defaulted_p : 1; |
5f5c8ee5 | 1677 | |
96c06863 | 1678 | /* True means that either no color is specified for the corresponding |
54bff0bd | 1679 | attribute or that the specified color couldn't be loaded. |
5f5c8ee5 | 1680 | Use the foreground color when drawing in that case. */ |
96c06863 PE |
1681 | bool_bf overline_color_defaulted_p : 1; |
1682 | bool_bf strike_through_color_defaulted_p : 1; | |
1683 | bool_bf box_color_defaulted_p : 1; | |
5f5c8ee5 | 1684 | |
cd4eb164 CY |
1685 | /* TTY appearances. Colors are found in `lface' with empty color |
1686 | string meaning the default color of the TTY. */ | |
96c06863 PE |
1687 | bool_bf tty_bold_p : 1; |
1688 | bool_bf tty_italic_p : 1; | |
1689 | bool_bf tty_underline_p : 1; | |
1690 | bool_bf tty_reverse_p : 1; | |
5f5c8ee5 | 1691 | |
96c06863 | 1692 | /* True means that colors of this face may not be freed because they |
dd387b25 GM |
1693 | have been copied bitwise from a base face (see |
1694 | realize_x_face). */ | |
96c06863 | 1695 | bool_bf colors_copied_bitwise_p : 1; |
dd387b25 | 1696 | |
11894ceb | 1697 | /* If non-zero, use overstrike (to simulate bold-face). */ |
96c06863 | 1698 | bool_bf overstrike : 1; |
11894ceb | 1699 | |
edfda783 AR |
1700 | /* NOTE: this is not used yet, but eventually this impl should be done |
1701 | similarly to overstrike */ | |
1702 | #ifdef HAVE_NS | |
1703 | /* If non-zero, use geometric rotation (to simulate italic). */ | |
96c06863 | 1704 | bool_bf synth_ital : 1; |
edfda783 AR |
1705 | #endif |
1706 | ||
31e0750e DN |
1707 | /* The hash value of this face. */ |
1708 | unsigned hash; | |
1709 | ||
5f5c8ee5 GM |
1710 | /* Next and previous face in hash collision list of face cache. */ |
1711 | struct face *next, *prev; | |
b3091a23 | 1712 | |
da78062b KH |
1713 | /* If this face is an ASCII face, this points to this face itself. |
1714 | Otherwise, this points to an ASCII face that has the same | |
1715 | attributes except the font. */ | |
b3091a23 | 1716 | struct face *ascii_face; |
8443e69e | 1717 | |
24ce6a02 | 1718 | #ifdef HAVE_XFT |
8443e69e KH |
1719 | /* Extra member that a font-driver uses privately. */ |
1720 | void *extra; | |
24ce6a02 | 1721 | #endif |
5f5c8ee5 GM |
1722 | }; |
1723 | ||
1724 | ||
1725 | /* Color index indicating that face uses a terminal's default color. */ | |
1726 | ||
1727 | #define FACE_TTY_DEFAULT_COLOR ((unsigned long) -1) | |
1728 | ||
f9d2fdc4 EZ |
1729 | /* Color index indicating that face uses an unknown foreground color. */ |
1730 | ||
1731 | #define FACE_TTY_DEFAULT_FG_COLOR ((unsigned long) -2) | |
1732 | ||
54bff0bd | 1733 | /* Color index indicating that face uses an unknown background color. */ |
f9d2fdc4 EZ |
1734 | |
1735 | #define FACE_TTY_DEFAULT_BG_COLOR ((unsigned long) -3) | |
1736 | ||
798aef02 PE |
1737 | /* True if COLOR is a specified (i.e., nondefault) foreground or |
1738 | background color for a tty face. */ | |
1739 | ||
1740 | INLINE bool | |
1741 | face_tty_specified_color (unsigned long color) | |
1742 | { | |
1743 | return color < FACE_TTY_DEFAULT_BG_COLOR; | |
1744 | } | |
1745 | ||
5f5c8ee5 GM |
1746 | /* Non-zero if FACE was realized for unibyte use. */ |
1747 | ||
1748 | #define FACE_UNIBYTE_P(FACE) ((FACE)->charset < 0) | |
1749 | ||
1750 | ||
1751 | /* IDs of important faces known by the C face code. These are the IDs | |
1752 | of the faces for CHARSET_ASCII. */ | |
1753 | ||
1754 | enum face_id | |
1755 | { | |
1756 | DEFAULT_FACE_ID, | |
1757 | MODE_LINE_FACE_ID, | |
f6911ea7 | 1758 | MODE_LINE_INACTIVE_FACE_ID, |
9ea173e8 | 1759 | TOOL_BAR_FACE_ID, |
afb7aabb | 1760 | FRINGE_FACE_ID, |
045dee35 | 1761 | HEADER_LINE_FACE_ID, |
76a6bc49 GM |
1762 | SCROLL_BAR_FACE_ID, |
1763 | BORDER_FACE_ID, | |
1764 | CURSOR_FACE_ID, | |
1765 | MOUSE_FACE_ID, | |
8317e104 | 1766 | MENU_FACE_ID, |
53abc3bf | 1767 | VERTICAL_BORDER_FACE_ID, |
880e6158 | 1768 | WINDOW_DIVIDER_FACE_ID, |
764ec9e5 MR |
1769 | WINDOW_DIVIDER_FIRST_PIXEL_FACE_ID, |
1770 | WINDOW_DIVIDER_LAST_PIXEL_FACE_ID, | |
5f5c8ee5 GM |
1771 | BASIC_FACE_ID_SENTINEL |
1772 | }; | |
1773 | ||
6b61353c | 1774 | #define MAX_FACE_ID ((1 << FACE_ID_BITS) - 1) |
5f5c8ee5 GM |
1775 | |
1776 | /* A cache of realized faces. Each frame has its own cache because | |
1777 | Emacs allows different frame-local face definitions. */ | |
1778 | ||
1779 | struct face_cache | |
1780 | { | |
1781 | /* Hash table of cached realized faces. */ | |
1782 | struct face **buckets; | |
177c0ea7 | 1783 | |
5f5c8ee5 GM |
1784 | /* Back-pointer to the frame this cache belongs to. */ |
1785 | struct frame *f; | |
1786 | ||
1787 | /* A vector of faces so that faces can be referenced by an ID. */ | |
1788 | struct face **faces_by_id; | |
1789 | ||
1790 | /* The allocated size, and number of used slots of faces_by_id. */ | |
0065d054 PE |
1791 | ptrdiff_t size; |
1792 | int used; | |
90893c55 GM |
1793 | |
1794 | /* Flag indicating that attributes of the `menu' face have been | |
1795 | changed. */ | |
96c06863 | 1796 | bool_bf menu_face_changed_p : 1; |
5f5c8ee5 GM |
1797 | }; |
1798 | ||
5f5c8ee5 GM |
1799 | /* Return a pointer to the face with ID on frame F, or null if such a |
1800 | face doesn't exist. */ | |
1801 | ||
1802 | #define FACE_FROM_ID(F, ID) \ | |
ea204efb | 1803 | (UNSIGNED_CMP (ID, <, FRAME_FACE_CACHE (F)->used) \ |
5f5c8ee5 GM |
1804 | ? FRAME_FACE_CACHE (F)->faces_by_id[ID] \ |
1805 | : NULL) | |
1806 | ||
ff1a0d8e KH |
1807 | #ifdef HAVE_WINDOW_SYSTEM |
1808 | ||
b3091a23 KH |
1809 | /* Non-zero if FACE is suitable for displaying character CHAR. */ |
1810 | ||
239f9db9 PE |
1811 | #define FACE_SUITABLE_FOR_ASCII_CHAR_P(FACE, CHAR) \ |
1812 | ((FACE) == (FACE)->ascii_face) | |
1813 | ||
5f5c8ee5 | 1814 | /* Return the id of the realized face on frame F that is like the face |
b3091a23 KH |
1815 | with id ID but is suitable for displaying character CHAR. |
1816 | This macro is only meaningful for multibyte character CHAR. */ | |
177c0ea7 | 1817 | |
83a90904 | 1818 | #define FACE_FOR_CHAR(F, FACE, CHAR, POS, OBJECT) \ |
397a32c1 | 1819 | face_for_char ((F), (FACE), (CHAR), (POS), (OBJECT)) |
5f5c8ee5 | 1820 | |
ff1a0d8e | 1821 | #else /* not HAVE_WINDOW_SYSTEM */ |
5f5c8ee5 | 1822 | |
96c06863 | 1823 | #define FACE_SUITABLE_FOR_ASCII_CHAR_P(FACE, CHAR) true |
83a90904 | 1824 | #define FACE_FOR_CHAR(F, FACE, CHAR, POS, OBJECT) ((FACE)->id) |
ff1a0d8e KH |
1825 | |
1826 | #endif /* not HAVE_WINDOW_SYSTEM */ | |
5f5c8ee5 | 1827 | |
84575e67 | 1828 | /* Return true if G contains a valid character code. */ |
00382e8b | 1829 | INLINE bool |
84575e67 PE |
1830 | GLYPH_CHAR_VALID_P (GLYPH g) |
1831 | { | |
1832 | return CHAR_VALID_P (GLYPH_CHAR (g)); | |
1833 | } | |
1834 | ||
1835 | /* The glyph code from a display vector may either be an integer which | |
1836 | encodes a char code in the lower CHARACTERBITS bits and a (very small) | |
1837 | face-id in the upper bits, or it may be a cons (CHAR . FACE-ID). */ | |
1838 | ||
00382e8b | 1839 | INLINE bool |
84575e67 PE |
1840 | GLYPH_CODE_P (Lisp_Object gc) |
1841 | { | |
1842 | return (CONSP (gc) | |
1843 | ? (CHARACTERP (XCAR (gc)) | |
1844 | && RANGED_INTEGERP (0, XCDR (gc), MAX_FACE_ID)) | |
1845 | : (RANGED_INTEGERP | |
1846 | (0, gc, | |
1847 | (MAX_FACE_ID < TYPE_MAXIMUM (EMACS_INT) >> CHARACTERBITS | |
1848 | ? ((EMACS_INT) MAX_FACE_ID << CHARACTERBITS) | MAX_CHAR | |
1849 | : TYPE_MAXIMUM (EMACS_INT))))); | |
1850 | } | |
1851 | ||
5f5c8ee5 GM |
1852 | /* Non-zero means face attributes have been changed since the last |
1853 | redisplay. Used in redisplay_internal. */ | |
1854 | ||
1855 | extern int face_change_count; | |
1856 | ||
e69a9370 | 1857 | /* For reordering of bidirectional text. */ |
b7b65b15 EZ |
1858 | #define BIDI_MAXLEVEL 64 |
1859 | ||
29e3d8d1 EZ |
1860 | /* Data type for describing the bidirectional character types. The |
1861 | first 7 must be at the beginning, because they are the only values | |
1862 | valid in the `bidi_type' member of `struct glyph'; we only reserve | |
c805dec0 KH |
1863 | 3 bits for it, so we cannot use there values larger than 7. |
1864 | ||
1865 | The order of members must be in sync with the 8th element of the | |
474a8465 | 1866 | member of unidata-prop-alist (in admin/unidata/unidata-gen.el) for |
c805dec0 | 1867 | Unicode character property `bidi-class'. */ |
b7b65b15 | 1868 | typedef enum { |
29e3d8d1 | 1869 | UNKNOWN_BT = 0, |
b7b65b15 EZ |
1870 | STRONG_L, /* strong left-to-right */ |
1871 | STRONG_R, /* strong right-to-left */ | |
29e3d8d1 EZ |
1872 | WEAK_EN, /* european number */ |
1873 | WEAK_AN, /* arabic number */ | |
1874 | WEAK_BN, /* boundary neutral */ | |
1875 | NEUTRAL_B, /* paragraph separator */ | |
b7b65b15 EZ |
1876 | STRONG_AL, /* arabic right-to-left letter */ |
1877 | LRE, /* left-to-right embedding */ | |
1878 | LRO, /* left-to-right override */ | |
1879 | RLE, /* right-to-left embedding */ | |
1880 | RLO, /* right-to-left override */ | |
1881 | PDF, /* pop directional format */ | |
ad826124 EZ |
1882 | LRI, /* left-to-right isolate */ |
1883 | RLI, /* right-to-left isolate */ | |
1884 | FSI, /* first strong isolate */ | |
1885 | PDI, /* pop directional isolate */ | |
b7b65b15 EZ |
1886 | WEAK_ES, /* european number separator */ |
1887 | WEAK_ET, /* european number terminator */ | |
b7b65b15 EZ |
1888 | WEAK_CS, /* common separator */ |
1889 | WEAK_NSM, /* non-spacing mark */ | |
b7b65b15 EZ |
1890 | NEUTRAL_S, /* segment separator */ |
1891 | NEUTRAL_WS, /* whitespace */ | |
1892 | NEUTRAL_ON /* other neutrals */ | |
1893 | } bidi_type_t; | |
1894 | ||
1895 | /* The basic directionality data type. */ | |
1896 | typedef enum { NEUTRAL_DIR, L2R, R2L } bidi_dir_t; | |
1897 | ||
1898 | /* Data type for storing information about characters we need to | |
1899 | remember. */ | |
1900 | struct bidi_saved_info { | |
d311d28c | 1901 | ptrdiff_t bytepos, charpos; /* character's buffer position */ |
89d3374a EZ |
1902 | bidi_type_t type; /* character's resolved bidi type */ |
1903 | bidi_type_t type_after_w1; /* original type of the character, after W1 */ | |
1904 | bidi_type_t orig_type; /* type as we found it in the buffer */ | |
b7b65b15 EZ |
1905 | }; |
1906 | ||
1907 | /* Data type for keeping track of saved embedding levels and override | |
1908 | status information. */ | |
1909 | struct bidi_stack { | |
1910 | int level; | |
1911 | bidi_dir_t override; | |
1912 | }; | |
1913 | ||
87e67904 EZ |
1914 | /* Data type for storing information about a string being iterated on. */ |
1915 | struct bidi_string_data { | |
bb269206 EZ |
1916 | Lisp_Object lstring; /* Lisp string to reorder, or nil */ |
1917 | const unsigned char *s; /* string data, or NULL if reordering buffer */ | |
d311d28c | 1918 | ptrdiff_t schars; /* the number of characters in the string, |
87e67904 | 1919 | excluding the terminating null */ |
d311d28c | 1920 | ptrdiff_t bufpos; /* buffer position of lstring, or 0 if N/A */ |
96c06863 | 1921 | bool_bf from_disp_str : 1; /* True means the string comes from a |
87e67904 | 1922 | display property */ |
96c06863 | 1923 | bool_bf unibyte : 1; /* True means the string is unibyte */ |
87e67904 EZ |
1924 | }; |
1925 | ||
182ce2d2 | 1926 | /* Data type for reordering bidirectional text. */ |
b7b65b15 | 1927 | struct bidi_it { |
d311d28c PE |
1928 | ptrdiff_t bytepos; /* iterator's position in buffer/string */ |
1929 | ptrdiff_t charpos; | |
182ce2d2 EZ |
1930 | int ch; /* character at that position, or u+FFFC |
1931 | ("object replacement character") for a run | |
1932 | of characters covered by a display string */ | |
d311d28c | 1933 | ptrdiff_t nchars; /* its "length", usually 1; it's > 1 for a run |
182ce2d2 | 1934 | of characters covered by a display string */ |
d311d28c | 1935 | ptrdiff_t ch_len; /* its length in bytes */ |
89d3374a EZ |
1936 | bidi_type_t type; /* bidi type of this character, after |
1937 | resolving weak and neutral types */ | |
1938 | bidi_type_t type_after_w1; /* original type, after overrides and W1 */ | |
1939 | bidi_type_t orig_type; /* original type, as found in the buffer */ | |
b7b65b15 | 1940 | int resolved_level; /* final resolved level of this character */ |
9c82e145 EZ |
1941 | int invalid_levels; /* how many PDFs to ignore */ |
1942 | int invalid_rl_levels; /* how many PDFs from RLE/RLO to ignore */ | |
9c82e145 | 1943 | struct bidi_saved_info prev; /* info about previous character */ |
b7b65b15 EZ |
1944 | struct bidi_saved_info last_strong; /* last-seen strong directional char */ |
1945 | struct bidi_saved_info next_for_neutral; /* surrounding characters for... */ | |
1946 | struct bidi_saved_info prev_for_neutral; /* ...resolving neutrals */ | |
1947 | struct bidi_saved_info next_for_ws; /* character after sequence of ws */ | |
cfc09582 | 1948 | ptrdiff_t next_en_pos; /* pos. of next char for determining ET type */ |
7b5d6677 | 1949 | bidi_type_t next_en_type; /* type of char at next_en_pos */ |
d311d28c | 1950 | ptrdiff_t ignore_bn_limit; /* position until which to ignore BNs */ |
b7b65b15 | 1951 | bidi_dir_t sor; /* direction of start-of-run in effect */ |
d36fe237 | 1952 | int scan_dir; /* direction of text scan, 1: forw, -1: back */ |
d311d28c | 1953 | ptrdiff_t disp_pos; /* position of display string after ch */ |
0c95fcf7 EZ |
1954 | int disp_prop; /* if non-zero, there really is a |
1955 | `display' property/string at disp_pos; | |
1956 | if 2, the property is a `space' spec */ | |
b7b65b15 | 1957 | int stack_idx; /* index of current data on the stack */ |
ad55bd46 | 1958 | /* Note: Everything from here on is not copied/saved when the bidi |
e69a9370 EZ |
1959 | iterator state is saved, pushed, or popped. So only put here |
1960 | stuff that is not part of the bidi iterator's state! */ | |
b7b65b15 | 1961 | struct bidi_stack level_stack[BIDI_MAXLEVEL]; /* stack of embedding levels */ |
87e67904 | 1962 | struct bidi_string_data string; /* string to reorder */ |
5bf97bfc | 1963 | struct window *w; /* the window being displayed */ |
e69a9370 | 1964 | bidi_dir_t paragraph_dir; /* current paragraph direction */ |
d311d28c | 1965 | ptrdiff_t separator_limit; /* where paragraph separator should end */ |
96c06863 PE |
1966 | bool_bf prev_was_pdf : 1; /* if true, previous char was PDF */ |
1967 | bool_bf first_elt : 1; /* if true, examine current char first */ | |
1968 | bool_bf new_paragraph : 1; /* if true, we expect a new paragraph */ | |
1969 | bool_bf frame_window_p : 1; /* true if displaying on a GUI frame */ | |
b7b65b15 EZ |
1970 | }; |
1971 | ||
e69a9370 EZ |
1972 | /* Value is non-zero when the bidi iterator is at base paragraph |
1973 | embedding level. */ | |
1974 | #define BIDI_AT_BASE_LEVEL(BIDI_IT) \ | |
241ab1c1 | 1975 | ((BIDI_IT).resolved_level == (BIDI_IT).level_stack[0].level) |
5f5c8ee5 GM |
1976 | |
1977 | \f | |
f4e1400d KS |
1978 | /*********************************************************************** |
1979 | Fringes | |
1980 | ***********************************************************************/ | |
1981 | ||
f4e1400d KS |
1982 | /* Structure used to describe where and how to draw a fringe bitmap. |
1983 | WHICH is the fringe bitmap to draw. WD and H is the (adjusted) | |
1984 | width and height of the bitmap, DH is the height adjustment (if | |
1985 | bitmap is periodic). X and Y are frame coordinates of the area to | |
1986 | display the bitmap, DY is relative offset of the bitmap into that | |
0633d52c | 1987 | area. BX, NX, BY, NY specifies the area to clear if the bitmap |
f4e1400d KS |
1988 | does not fill the entire area. FACE is the fringe face. */ |
1989 | ||
1990 | struct draw_fringe_bitmap_params | |
1991 | { | |
6b61353c KH |
1992 | int which; /* enum fringe_bitmap_type */ |
1993 | unsigned short *bits; | |
f4e1400d KS |
1994 | int wd, h, dh; |
1995 | int x, y; | |
1996 | int bx, nx, by, ny; | |
96c06863 PE |
1997 | bool_bf cursor_p : 1; |
1998 | bool_bf overlay_p : 1; | |
f4e1400d KS |
1999 | struct face *face; |
2000 | }; | |
2001 | ||
6b61353c | 2002 | #define MAX_FRINGE_BITMAPS (1<<FRINGE_ID_BITS) |
f4e1400d KS |
2003 | |
2004 | \f | |
5f5c8ee5 GM |
2005 | /*********************************************************************** |
2006 | Display Iterator | |
2007 | ***********************************************************************/ | |
2008 | ||
2009 | /* Iteration over things to display in current_buffer or in a string. | |
2010 | ||
2011 | The iterator handles: | |
2012 | ||
2013 | 1. Overlay strings (after-string, before-string). | |
2014 | 2. Face properties. | |
2015 | 3. Invisible text properties. | |
2016 | 4. Selective display. | |
2017 | 5. Translation of characters via display tables. | |
2018 | 6. Translation of control characters to the forms `\003' or `^C'. | |
2019 | 7. `glyph' and `space-width' properties. | |
2020 | ||
2021 | Iterators are initialized by calling init_iterator or one of the | |
2022 | equivalent functions below. A call to get_next_display_element | |
2023 | loads the iterator structure with information about what next to | |
2024 | display. A call to set_iterator_to_next increments the iterator's | |
2025 | position. | |
2026 | ||
2027 | Characters from overlay strings, display table entries or control | |
2028 | character translations are returned one at a time. For example, if | |
2029 | we have a text of `a\x01' where `a' has a display table definition | |
2030 | of `cd' and the control character is displayed with a leading | |
2031 | arrow, then the iterator will return: | |
2032 | ||
2033 | Call Return Source Call next | |
2034 | ----------------------------------------------------------------- | |
2035 | next c display table move | |
2036 | next d display table move | |
2037 | next ^ control char move | |
2038 | next A control char move | |
2039 | ||
2040 | The same mechanism is also used to return characters for ellipses | |
2041 | displayed at the end of invisible text. | |
2042 | ||
2043 | CAVEAT: Under some circumstances, move_.* functions can be called | |
2044 | asynchronously, e.g. when computing a buffer position from an x and | |
2045 | y pixel position. This means that these functions and functions | |
2046 | called from them SHOULD NOT USE xmalloc and alike. See also the | |
2047 | comment at the start of xdisp.c. */ | |
2048 | ||
2049 | /* Enumeration describing what kind of display element an iterator is | |
2050 | loaded with after a call to get_next_display_element. */ | |
2051 | ||
2052 | enum display_element_type | |
2053 | { | |
2054 | /* A normal character. */ | |
2055 | IT_CHARACTER, | |
2056 | ||
a88c7fcd | 2057 | /* A composition (static and automatic). */ |
a90fbbf6 KH |
2058 | IT_COMPOSITION, |
2059 | ||
b2cca856 KH |
2060 | /* A glyphless character (e.g. ZWNJ, LRE). */ |
2061 | IT_GLYPHLESS, | |
2062 | ||
5f5c8ee5 GM |
2063 | /* An image. */ |
2064 | IT_IMAGE, | |
2065 | ||
2066 | /* A flexible width and height space. */ | |
2067 | IT_STRETCH, | |
2068 | ||
2069 | /* End of buffer or string. */ | |
2070 | IT_EOB, | |
2071 | ||
2072 | /* Truncation glyphs. Never returned by get_next_display_element. | |
2073 | Used to get display information about truncation glyphs via | |
2074 | produce_glyphs. */ | |
2075 | IT_TRUNCATION, | |
2076 | ||
2077 | /* Continuation glyphs. See the comment for IT_TRUNCATION. */ | |
2078 | IT_CONTINUATION | |
2079 | }; | |
2080 | ||
2081 | ||
2082 | /* An enumerator for each text property that has a meaning for display | |
2083 | purposes. */ | |
2084 | ||
2085 | enum prop_idx | |
2086 | { | |
2087 | FONTIFIED_PROP_IDX, | |
2088 | FACE_PROP_IDX, | |
2089 | INVISIBLE_PROP_IDX, | |
2090 | DISPLAY_PROP_IDX, | |
a90fbbf6 | 2091 | COMPOSITION_PROP_IDX, |
5f5c8ee5 GM |
2092 | |
2093 | /* Not a property. Used to indicate changes in overlays. */ | |
2094 | OVERLAY_PROP_IDX, | |
2095 | ||
2096 | /* Sentinel. */ | |
2097 | LAST_PROP_IDX | |
2098 | }; | |
2099 | ||
bf7a8847 CY |
2100 | /* An enumerator for the method of wrapping long lines. */ |
2101 | ||
2102 | enum line_wrap_method | |
2103 | { | |
2104 | TRUNCATE, | |
2105 | WORD_WRAP, | |
2106 | WINDOW_WRAP | |
2107 | }; | |
5f5c8ee5 | 2108 | |
b2cca856 KH |
2109 | /* An enumerator for the method of displaying glyphless characters. */ |
2110 | ||
2111 | enum glyphless_display_method | |
2112 | { | |
0eb025fb EZ |
2113 | /* Display a thin (1-pixel width) space. On a TTY, display a |
2114 | 1-character width space. */ | |
b2cca856 KH |
2115 | GLYPHLESS_DISPLAY_THIN_SPACE, |
2116 | /* Display an empty box of proper width. */ | |
2117 | GLYPHLESS_DISPLAY_EMPTY_BOX, | |
2118 | /* Display an acronym string in a box. */ | |
2119 | GLYPHLESS_DISPLAY_ACRONYM, | |
0eb025fb EZ |
2120 | /* Display the hexadecimal code of the character in a box. */ |
2121 | GLYPHLESS_DISPLAY_HEX_CODE | |
b2cca856 KH |
2122 | }; |
2123 | ||
0633d52c KS |
2124 | struct it_slice |
2125 | { | |
2126 | Lisp_Object x; | |
2127 | Lisp_Object y; | |
2128 | Lisp_Object width; | |
2129 | Lisp_Object height; | |
2130 | }; | |
2131 | ||
490943fe RS |
2132 | /* Input sources for fetching characters or data to display. |
2133 | The input source is found in the `method' field. */ | |
2134 | ||
6a88f968 KS |
2135 | enum it_method { |
2136 | GET_FROM_BUFFER = 0, | |
2137 | GET_FROM_DISPLAY_VECTOR, | |
6a88f968 KS |
2138 | GET_FROM_STRING, |
2139 | GET_FROM_C_STRING, | |
2140 | GET_FROM_IMAGE, | |
2141 | GET_FROM_STRETCH, | |
2142 | NUM_IT_METHODS | |
2143 | }; | |
0633d52c | 2144 | |
b4bf28b7 | 2145 | /* FIXME: What is this? Why 5? */ |
90fcfd71 | 2146 | #define IT_STACK_SIZE 5 |
946a79d0 | 2147 | |
a88c7fcd KH |
2148 | /* Iterator for composition (both for static and automatic). */ |
2149 | struct composition_it | |
2150 | { | |
2151 | /* Next position at which to check the composition. */ | |
d311d28c | 2152 | ptrdiff_t stop_pos; |
a88c7fcd KH |
2153 | /* ID number of the composition or glyph-string. If negative, we |
2154 | are not iterating over a composition now. */ | |
ebfa62c0 | 2155 | ptrdiff_t id; |
a88c7fcd | 2156 | /* If non-negative, character that triggers the automatic |
10f72a37 | 2157 | composition at `stop_pos', and this is an automatic composition. |
6450412d KH |
2158 | If negative, this is a static composition. This is set to -2 |
2159 | temporarily if searching of composition reach a limit or a | |
2160 | newline. */ | |
a88c7fcd | 2161 | int ch; |
10f72a37 KH |
2162 | /* If this is an automatic composition, index of a rule for making |
2163 | the automatic composition. Provided that ELT is an element of | |
2164 | Vcomposition_function_table for CH, (nth ELT RULE_IDX) is the | |
2165 | rule for the composition. */ | |
2166 | int rule_idx; | |
2167 | /* If this is an automatic composition, how many characters to look | |
2168 | back from the position where a character triggering the | |
2169 | composition exists. */ | |
d311d28c | 2170 | ptrdiff_t lookback; |
a88c7fcd KH |
2171 | /* If non-negative, number of glyphs of the glyph-string. */ |
2172 | int nglyphs; | |
59ea14cd | 2173 | /* True iff the composition is created while buffer is scanned in |
10f72a37 KH |
2174 | reverse order, and thus the grapheme clusters must be rendered |
2175 | from the last to the first. */ | |
59ea14cd | 2176 | bool reversed_p; |
10f72a37 KH |
2177 | |
2178 | /** The following members contain information about the current | |
2179 | grapheme cluster. */ | |
2180 | /* Position of the first character of the current grapheme cluster. */ | |
d311d28c | 2181 | ptrdiff_t charpos; |
a88c7fcd KH |
2182 | /* Number of characters and bytes of the current grapheme cluster. */ |
2183 | int nchars, nbytes; | |
2184 | /* Indices of the glyphs for the current grapheme cluster. */ | |
2185 | int from, to; | |
397e886f EZ |
2186 | /* Width of the current grapheme cluster in units of columns it will |
2187 | occupy on display; see CHAR_WIDTH. */ | |
a88c7fcd KH |
2188 | int width; |
2189 | }; | |
2190 | ||
5f5c8ee5 GM |
2191 | struct it |
2192 | { | |
2193 | /* The window in which we iterate over current_buffer (or a string). */ | |
2194 | Lisp_Object window; | |
2195 | struct window *w; | |
2196 | ||
2197 | /* The window's frame. */ | |
2198 | struct frame *f; | |
2199 | ||
6a88f968 KS |
2200 | /* Method to use to load this structure with the next display element. */ |
2201 | enum it_method method; | |
5f5c8ee5 GM |
2202 | |
2203 | /* The next position at which to check for face changes, invisible | |
2204 | text, overlay strings, end of text etc., which see. */ | |
d311d28c | 2205 | ptrdiff_t stop_charpos; |
5f5c8ee5 | 2206 | |
e69a9370 | 2207 | /* Previous stop position, i.e. the last one before the current |
241ab1c1 | 2208 | iterator position in `current'. */ |
d311d28c | 2209 | ptrdiff_t prev_stop; |
e69a9370 | 2210 | |
8eef7665 EZ |
2211 | /* Last stop position iterated across whose bidi embedding level is |
2212 | equal to the current paragraph's base embedding level. */ | |
d311d28c | 2213 | ptrdiff_t base_level_stop; |
e69a9370 | 2214 | |
5f5c8ee5 GM |
2215 | /* Maximum string or buffer position + 1. ZV when iterating over |
2216 | current_buffer. */ | |
d311d28c | 2217 | ptrdiff_t end_charpos; |
5f5c8ee5 GM |
2218 | |
2219 | /* C string to iterate over. Non-null means get characters from | |
2220 | this string, otherwise characters are read from current_buffer | |
2221 | or it->string. */ | |
675e2c69 | 2222 | const unsigned char *s; |
5f5c8ee5 GM |
2223 | |
2224 | /* Number of characters in the string (s, or it->string) we iterate | |
aa1fe812 EZ |
2225 | over. Used only in display_string and its subroutines; never |
2226 | used for overlay strings and strings from display properties. */ | |
d311d28c | 2227 | ptrdiff_t string_nchars; |
5f5c8ee5 | 2228 | |
5f5c8ee5 | 2229 | /* Position at which redisplay end trigger functions should be run. */ |
d311d28c | 2230 | ptrdiff_t redisplay_end_trigger_charpos; |
5f5c8ee5 | 2231 | |
96c06863 PE |
2232 | /* True means multibyte characters are enabled. */ |
2233 | bool_bf multibyte_p : 1; | |
5f5c8ee5 | 2234 | |
96c06863 PE |
2235 | /* True means window has a mode line at its top. */ |
2236 | bool_bf header_line_p : 1; | |
5f5c8ee5 | 2237 | |
96c06863 | 2238 | /* True means `string' is the value of a `display' property. |
5f5c8ee5 | 2239 | Don't handle some `display' properties in these strings. */ |
96c06863 | 2240 | bool_bf string_from_display_prop_p : 1; |
5f5c8ee5 | 2241 | |
96c06863 | 2242 | /* True means `string' comes from a `line-prefix' or `wrap-prefix' |
9f851fbd | 2243 | property. */ |
96c06863 | 2244 | bool_bf string_from_prefix_prop_p : 1; |
9f851fbd | 2245 | |
96c06863 | 2246 | /* True means we are iterating an object that came from a value of a |
a2eaa31d | 2247 | `display' property. */ |
96c06863 | 2248 | bool_bf from_disp_prop_p : 1; |
a2eaa31d | 2249 | |
b437860a | 2250 | /* When METHOD == next_element_from_display_vector, |
96c06863 PE |
2251 | this is true if we're doing an ellipsis. Otherwise meaningless. */ |
2252 | bool_bf ellipsis_p : 1; | |
b437860a | 2253 | |
c4f4682b | 2254 | /* True means cursor shouldn't be displayed here. */ |
96c06863 | 2255 | bool_bf avoid_cursor_p : 1; |
c4f4682b | 2256 | |
5f5c8ee5 GM |
2257 | /* Display table in effect or null for none. */ |
2258 | struct Lisp_Char_Table *dp; | |
2259 | ||
2260 | /* Current display table vector to return characters from and its | |
2261 | end. dpvec null means we are not returning characters from a | |
2262 | display table entry; current.dpvec_index gives the current index | |
2263 | into dpvec. This same mechanism is also used to return | |
2264 | characters from translated control characters, i.e. `\003' or | |
2265 | `^C'. */ | |
2266 | Lisp_Object *dpvec, *dpend; | |
2267 | ||
2268 | /* Length in bytes of the char that filled dpvec. A value of zero | |
0c22566f EZ |
2269 | means that no such character is involved. A negative value means |
2270 | the rest of the line from the current iterator position onwards | |
2271 | is hidden by selective display or ellipsis. */ | |
5f5c8ee5 GM |
2272 | int dpvec_char_len; |
2273 | ||
888ca1e7 KS |
2274 | /* Face id to use for all characters in display vector. -1 if unused. */ |
2275 | int dpvec_face_id; | |
2276 | ||
5f5c8ee5 GM |
2277 | /* Face id of the iterator saved in case a glyph from dpvec contains |
2278 | a face. The face is restored when all glyphs from dpvec have | |
2279 | been delivered. */ | |
2280 | int saved_face_id; | |
2281 | ||
2282 | /* Vector of glyphs for control character translation. The pointer | |
4659838f KH |
2283 | dpvec is set to ctl_chars when a control character is translated. |
2284 | This vector is also used for incomplete multibyte character | |
8d5b986d GM |
2285 | translation (e.g \222\244). Such a character is at most 4 bytes, |
2286 | thus we need at most 16 bytes here. */ | |
2287 | Lisp_Object ctl_chars[16]; | |
5f5c8ee5 | 2288 | |
6b61353c KH |
2289 | /* Initial buffer or string position of the iterator, before skipping |
2290 | over display properties and invisible text. */ | |
2291 | struct display_pos start; | |
2292 | ||
5f5c8ee5 GM |
2293 | /* Current buffer or string position of the iterator, including |
2294 | position in overlay strings etc. */ | |
2295 | struct display_pos current; | |
2296 | ||
c69a28f1 | 2297 | /* Total number of overlay strings to process. This can be > |
2517bc14 EZ |
2298 | OVERLAY_STRING_CHUNK_SIZE. Value is dependable only when |
2299 | current.overlay_string_index >= 0. Use the latter to determine | |
2300 | whether an overlay string is being iterated over, because | |
2301 | n_overlay_strings can be positive even when we are not rendering | |
2302 | an overlay string. */ | |
d311d28c | 2303 | ptrdiff_t n_overlay_strings; |
c69a28f1 | 2304 | |
d8b2a962 CY |
2305 | /* The charpos where n_overlay_strings was calculated. This should |
2306 | be set at the same time as n_overlay_strings. It is needed | |
2307 | because we show before-strings at the start of invisible text; | |
2308 | see handle_invisible_prop in xdisp.c. */ | |
d311d28c | 2309 | ptrdiff_t overlay_strings_charpos; |
d8b2a962 | 2310 | |
5f5c8ee5 GM |
2311 | /* Vector of overlays to process. Overlay strings are processed |
2312 | OVERLAY_STRING_CHUNK_SIZE at a time. */ | |
e9323aed | 2313 | #define OVERLAY_STRING_CHUNK_SIZE 16 |
5f5c8ee5 GM |
2314 | Lisp_Object overlay_strings[OVERLAY_STRING_CHUNK_SIZE]; |
2315 | ||
c69a28f1 | 2316 | /* For each overlay string, the overlay it came from. */ |
c69a28f1 | 2317 | Lisp_Object string_overlays[OVERLAY_STRING_CHUNK_SIZE]; |
5f5c8ee5 GM |
2318 | |
2319 | /* If non-nil, a Lisp string being processed. If | |
2320 | current.overlay_string_index >= 0, this is an overlay string from | |
31ca4639 CY |
2321 | pos. Use STRINGP (it.string) to test whether we are rendering a |
2322 | string or something else; do NOT use BUFFERP (it.object). */ | |
5f5c8ee5 GM |
2323 | Lisp_Object string; |
2324 | ||
c69a28f1 RS |
2325 | /* If non-nil, we are processing a string that came |
2326 | from a `display' property given by an overlay. */ | |
2327 | Lisp_Object from_overlay; | |
2328 | ||
5f5c8ee5 GM |
2329 | /* Stack of saved values. New entries are pushed when we begin to |
2330 | process an overlay string or a string from a `glyph' property. | |
2331 | Entries are popped when we return to deliver display elements | |
2332 | from what we previously had. */ | |
2333 | struct iterator_stack_entry | |
9f2279ad | 2334 | { |
128ce5c6 KS |
2335 | Lisp_Object string; |
2336 | int string_nchars; | |
d311d28c PE |
2337 | ptrdiff_t end_charpos; |
2338 | ptrdiff_t stop_charpos; | |
2339 | ptrdiff_t prev_stop; | |
2340 | ptrdiff_t base_level_stop; | |
a88c7fcd | 2341 | struct composition_it cmp_it; |
5f5c8ee5 | 2342 | int face_id; |
128ce5c6 KS |
2343 | |
2344 | /* Save values specific to a given method. */ | |
fd00a1e8 | 2345 | union { |
128ce5c6 | 2346 | /* method == GET_FROM_IMAGE */ |
fd00a1e8 KS |
2347 | struct { |
2348 | Lisp_Object object; | |
2349 | struct it_slice slice; | |
13464394 | 2350 | ptrdiff_t image_id; |
fd00a1e8 | 2351 | } image; |
128ce5c6 | 2352 | /* method == GET_FROM_COMPOSITION */ |
fd00a1e8 KS |
2353 | struct { |
2354 | Lisp_Object object; | |
fd00a1e8 | 2355 | } comp; |
128ce5c6 | 2356 | /* method == GET_FROM_STRETCH */ |
fd00a1e8 KS |
2357 | struct { |
2358 | Lisp_Object object; | |
2359 | } stretch; | |
2360 | } u; | |
128ce5c6 | 2361 | |
9e6e9826 | 2362 | /* Current text and display positions. */ |
128ce5c6 KS |
2363 | struct text_pos position; |
2364 | struct display_pos current; | |
c69a28f1 | 2365 | Lisp_Object from_overlay; |
5f5c8ee5 | 2366 | enum glyph_row_area area; |
946a79d0 | 2367 | enum it_method method; |
a1344e7d | 2368 | bidi_dir_t paragraph_embedding; |
96c06863 PE |
2369 | bool_bf multibyte_p : 1; |
2370 | bool_bf string_from_display_prop_p : 1; | |
2371 | bool_bf string_from_prefix_prop_p : 1; | |
2372 | bool_bf display_ellipsis_p : 1; | |
2373 | bool_bf avoid_cursor_p : 1; | |
2374 | bool_bf bidi_p : 1; | |
2375 | bool_bf from_disp_prop_p : 1; | |
e966384d | 2376 | enum line_wrap_method line_wrap; |
128ce5c6 | 2377 | |
9e6e9826 SM |
2378 | /* Properties from display property that are reset by another display |
2379 | property. */ | |
85c66abe | 2380 | short voffset; |
5f5c8ee5 | 2381 | Lisp_Object space_width; |
5f5c8ee5 GM |
2382 | Lisp_Object font_height; |
2383 | } | |
946a79d0 | 2384 | stack[IT_STACK_SIZE]; |
dfbb1e90 | 2385 | |
5f5c8ee5 GM |
2386 | /* Stack pointer. */ |
2387 | int sp; | |
177c0ea7 | 2388 | |
5f5c8ee5 GM |
2389 | /* -1 means selective display hides everything between a \r and the |
2390 | next newline; > 0 means hide lines indented more than that value. */ | |
d311d28c | 2391 | ptrdiff_t selective; |
5f5c8ee5 GM |
2392 | |
2393 | /* An enumeration describing what the next display element is | |
2394 | after a call to get_next_display_element. */ | |
2395 | enum display_element_type what; | |
dfbb1e90 | 2396 | |
5f5c8ee5 GM |
2397 | /* Face to use. */ |
2398 | int face_id; | |
2399 | ||
c69a28f1 | 2400 | /* Setting of buffer-local variable selective-display-ellipsis. */ |
96c06863 | 2401 | bool_bf selective_display_ellipsis_p : 1; |
c69a28f1 | 2402 | |
96c06863 | 2403 | /* True means control characters are translated into the form `^C' |
c69a28f1 | 2404 | where the `^' can be replaced by a display table entry. */ |
96c06863 | 2405 | bool_bf ctl_arrow_p : 1; |
c69a28f1 | 2406 | |
96c06863 PE |
2407 | /* True means that the current face has a box. */ |
2408 | bool_bf face_box_p : 1; | |
5f5c8ee5 GM |
2409 | |
2410 | /* Non-null means that the current character is the first in a run | |
2411 | of characters with box face. */ | |
96c06863 | 2412 | bool_bf start_of_box_run_p : 1; |
177c0ea7 | 2413 | |
96c06863 | 2414 | /* True means that the current character is the last in a run |
5f5c8ee5 | 2415 | of characters with box face. */ |
96c06863 | 2416 | bool_bf end_of_box_run_p : 1; |
5f5c8ee5 | 2417 | |
96c06863 PE |
2418 | /* True means overlay strings at end_charpos have been processed. */ |
2419 | bool_bf overlay_strings_at_end_processed_p : 1; | |
5f5c8ee5 | 2420 | |
96c06863 | 2421 | /* True means to ignore overlay strings at current pos, as they have |
fcc38f6d | 2422 | already been processed. */ |
96c06863 | 2423 | bool_bf ignore_overlay_strings_at_pos_p : 1; |
fcc38f6d | 2424 | |
96c06863 | 2425 | /* True means the actual glyph is not available in the current |
b3091a23 | 2426 | system. */ |
96c06863 | 2427 | bool_bf glyph_not_available_p : 1; |
666852af | 2428 | |
96c06863 | 2429 | /* True means the next line in display_line continues a character |
666852af GM |
2430 | consisting of more than one glyph, and some glyphs of this |
2431 | character have been put on the previous line. */ | |
96c06863 | 2432 | bool_bf starts_in_middle_of_char_p : 1; |
b3091a23 | 2433 | |
96c06863 | 2434 | /* If true, saved_face_id contains the id of the face in front of text |
4d2036e4 | 2435 | skipped due to selective display. */ |
96c06863 | 2436 | bool_bf face_before_selective_p : 1; |
4d2036e4 | 2437 | |
96c06863 | 2438 | /* If true, adjust current glyph so it does not increase current row |
7293ac29 | 2439 | descent/ascent (line-height property). Reset after this glyph. */ |
96c06863 | 2440 | bool_bf constrain_row_ascent_descent_p : 1; |
0633d52c | 2441 | |
85c66abe DN |
2442 | enum line_wrap_method line_wrap; |
2443 | ||
5f5c8ee5 | 2444 | /* The ID of the default face to use. One of DEFAULT_FACE_ID, |
4d2036e4 | 2445 | MODE_LINE_FACE_ID, etc, depending on what we are displaying. */ |
5f5c8ee5 GM |
2446 | int base_face_id; |
2447 | ||
940afb59 EZ |
2448 | /* If `what' == IT_CHARACTER, the character and the length in bytes |
2449 | of its multibyte sequence. The character comes from a buffer or | |
2450 | a string. It may be different from the character displayed in | |
2451 | case that unibyte_display_via_language_environment is set. | |
2452 | ||
2453 | If `what' == IT_COMPOSITION, the first component of a composition | |
2454 | and length in bytes of the composition. | |
2455 | ||
98092630 | 2456 | If `what' is anything else, these two are undefined (will |
940afb59 EZ |
2457 | probably hold values for the last IT_CHARACTER or IT_COMPOSITION |
2458 | traversed by the iterator. | |
2459 | ||
2460 | The values are updated by get_next_display_element, so they are | |
2461 | out of sync with the value returned by IT_CHARPOS between the | |
2462 | time set_iterator_to_next advances the position and the time | |
2463 | get_next_display_element loads the new values into c and len. */ | |
5f5c8ee5 GM |
2464 | int c, len; |
2465 | ||
a88c7fcd KH |
2466 | /* If what == IT_COMPOSITION, iterator substructure for the |
2467 | composition. */ | |
2468 | struct composition_it cmp_it; | |
a90fbbf6 | 2469 | |
d419e1d9 KH |
2470 | /* The character to display, possibly translated to multibyte if |
2471 | multibyte_p is zero or unibyte_display_via_language_environment | |
2472 | is set. This is set after get_next_display_element has been | |
2473 | called. If we are setting it->C directly before calling | |
2474 | PRODUCE_GLYPHS, this should be set beforehand too. */ | |
5f5c8ee5 GM |
2475 | int char_to_display; |
2476 | ||
b2cca856 KH |
2477 | /* If what == IT_GLYPHLESS, the method to display such a |
2478 | character. */ | |
2479 | enum glyphless_display_method glyphless_method; | |
2480 | ||
5f5c8ee5 | 2481 | /* If what == IT_IMAGE, the id of the image to display. */ |
13464394 | 2482 | ptrdiff_t image_id; |
5f5c8ee5 | 2483 | |
0633d52c KS |
2484 | /* Values from `slice' property. */ |
2485 | struct it_slice slice; | |
2486 | ||
5f5c8ee5 GM |
2487 | /* Value of the `space-width' property, if any; nil if none. */ |
2488 | Lisp_Object space_width; | |
2489 | ||
2490 | /* Computed from the value of the `raise' property. */ | |
2491 | short voffset; | |
2492 | ||
85c66abe DN |
2493 | /* Number of columns per \t. */ |
2494 | short tab_width; | |
2495 | ||
5f5c8ee5 GM |
2496 | /* Value of the `height' property, if any; nil if none. */ |
2497 | Lisp_Object font_height; | |
2498 | ||
2499 | /* Object and position where the current display element came from. | |
3341db62 EZ |
2500 | Object is normally the buffer which is being rendered, but it can |
2501 | also be a Lisp string in case the current display element comes | |
2502 | from an overlay string or from a display string (before- or | |
2503 | after-string). It may also be nil when a C string is being | |
2504 | rendered, e.g., during mode-line or header-line update. It can | |
2505 | also be a cons cell of the form `(space ...)', when we produce a | |
2506 | stretch glyph from a `display' specification. Finally, it can be | |
2507 | a zero-valued Lisp integer, but only temporarily, when we are | |
2508 | producing special glyphs for display purposes, like truncation | |
2509 | and continuation glyphs, or blanks that extend each line to the | |
2510 | edge of the window on a TTY. | |
2511 | ||
2517bc14 EZ |
2512 | Do NOT use !BUFFERP (it.object) as a test whether we are |
2513 | iterating over a string; use STRINGP (it.string) instead. | |
2514 | ||
3341db62 | 2515 | Position is the current iterator position in object. */ |
5f5c8ee5 GM |
2516 | Lisp_Object object; |
2517 | struct text_pos position; | |
2518 | ||
5f5c8ee5 GM |
2519 | /* Width in pixels of truncation and continuation glyphs. */ |
2520 | short truncation_pixel_width, continuation_pixel_width; | |
2521 | ||
2522 | /* First and last visible x-position in the display area. If window | |
87388f9d | 2523 | is hscrolled by n columns, first_visible_x == n * FRAME_COLUMN_WIDTH |
5f5c8ee5 GM |
2524 | (f), and last_visible_x == pixel width of W + first_visible_x. */ |
2525 | int first_visible_x, last_visible_x; | |
2526 | ||
2527 | /* Last visible y-position + 1 in the display area without a mode | |
2528 | line, if the window has one. */ | |
2529 | int last_visible_y; | |
2530 | ||
db0c5a7d KS |
2531 | /* Default amount of additional space in pixels between lines (for |
2532 | window systems only.) */ | |
bf95c413 | 2533 | int extra_line_spacing; |
5f5c8ee5 | 2534 | |
db0c5a7d KS |
2535 | /* Max extra line spacing added in this row. */ |
2536 | int max_extra_line_spacing; | |
2537 | ||
d956147c KS |
2538 | /* Override font height information for this glyph. |
2539 | Used if override_ascent >= 0. Cleared after this glyph. */ | |
2540 | int override_ascent, override_descent, override_boff; | |
2541 | ||
5f5c8ee5 GM |
2542 | /* If non-null, glyphs are produced in glyph_row with each call to |
2543 | produce_glyphs. */ | |
2544 | struct glyph_row *glyph_row; | |
2545 | ||
2546 | /* The area of glyph_row to which glyphs are added. */ | |
2547 | enum glyph_row_area area; | |
2548 | ||
2549 | /* Number of glyphs needed for the last character requested via | |
2550 | produce_glyphs. This is 1 except for tabs. */ | |
2551 | int nglyphs; | |
177c0ea7 | 2552 | |
5f5c8ee5 GM |
2553 | /* Width of the display element in pixels. Result of |
2554 | produce_glyphs. */ | |
2555 | int pixel_width; | |
2556 | ||
2febf6e0 GM |
2557 | /* Current, maximum logical, and maximum physical line height |
2558 | information. Result of produce_glyphs. */ | |
5f5c8ee5 | 2559 | int ascent, descent, max_ascent, max_descent; |
2febf6e0 | 2560 | int phys_ascent, phys_descent, max_phys_ascent, max_phys_descent; |
5f5c8ee5 GM |
2561 | |
2562 | /* Current x pixel position within the display line. This value | |
2563 | does not include the width of continuation lines in front of the | |
2564 | line. The value of current_x is automatically incremented by | |
2565 | pixel_width with each call to produce_glyphs. */ | |
2566 | int current_x; | |
2567 | ||
2568 | /* Accumulated width of continuation lines. If > 0, this means we | |
2569 | are currently in a continuation line. This is initially zero and | |
2570 | incremented/reset by display_line, move_it_to etc. */ | |
2571 | int continuation_lines_width; | |
2572 | ||
8eef7665 EZ |
2573 | /* Buffer position that ends the buffer text line being iterated. |
2574 | This is normally the position after the newline at EOL. If this | |
2575 | is the last line of the buffer and it doesn't have a newline, | |
2576 | value is ZV/ZV_BYTE. Set and used only if IT->bidi_p, for | |
2577 | setting the end position of glyph rows produced for continuation | |
2578 | lines, see display_line. */ | |
2579 | struct text_pos eol_pos; | |
2580 | ||
5f5c8ee5 GM |
2581 | /* Current y-position. Automatically incremented by the height of |
2582 | glyph_row in move_it_to and display_line. */ | |
2583 | int current_y; | |
2584 | ||
6b61353c KH |
2585 | /* Vertical matrix position of first text line in window. */ |
2586 | int first_vpos; | |
2587 | ||
5f5c8ee5 GM |
2588 | /* Current vertical matrix position, or line number. Automatically |
2589 | incremented by move_it_to and display_line. */ | |
2590 | int vpos; | |
2591 | ||
2592 | /* Horizontal matrix position reached in move_it_in_display_line. | |
4e104c76 EZ |
2593 | Only set there, not in display_line, and only when the X |
2594 | coordinate is past first_visible_x. */ | |
5f5c8ee5 | 2595 | int hpos; |
6b61353c KH |
2596 | |
2597 | /* Left fringe bitmap number (enum fringe_bitmap_type). */ | |
2598 | unsigned left_user_fringe_bitmap : FRINGE_ID_BITS; | |
2599 | ||
6b61353c KH |
2600 | /* Right fringe bitmap number (enum fringe_bitmap_type). */ |
2601 | unsigned right_user_fringe_bitmap : FRINGE_ID_BITS; | |
2602 | ||
b3b08f03 KS |
2603 | /* Face of the left fringe glyph. */ |
2604 | unsigned left_user_fringe_face_id : FACE_ID_BITS; | |
2605 | ||
6b61353c KH |
2606 | /* Face of the right fringe glyph. */ |
2607 | unsigned right_user_fringe_face_id : FACE_ID_BITS; | |
b7b65b15 | 2608 | |
96c06863 | 2609 | /* True means we need to reorder bidirectional text for display |
f44e260c | 2610 | in the visual order. */ |
96c06863 | 2611 | bool_bf bidi_p : 1; |
b7b65b15 | 2612 | |
f44e260c | 2613 | /* For iterating over bidirectional text. */ |
b7b65b15 | 2614 | struct bidi_it bidi_it; |
b44d9321 | 2615 | bidi_dir_t paragraph_embedding; |
5f5c8ee5 GM |
2616 | }; |
2617 | ||
2618 | ||
2619 | /* Access to positions of iterator IT. */ | |
2620 | ||
2621 | #define IT_CHARPOS(IT) CHARPOS ((IT).current.pos) | |
2622 | #define IT_BYTEPOS(IT) BYTEPOS ((IT).current.pos) | |
2623 | #define IT_STRING_CHARPOS(IT) CHARPOS ((IT).current.string_pos) | |
2624 | #define IT_STRING_BYTEPOS(IT) BYTEPOS ((IT).current.string_pos) | |
2625 | ||
2626 | /* Test if IT has reached the end of its buffer or string. This will | |
2627 | only work after get_next_display_element has been called. */ | |
2628 | ||
2629 | #define ITERATOR_AT_END_P(IT) ((IT)->what == IT_EOB) | |
2630 | ||
96c06863 | 2631 | /* True means IT is at the end of a line. This is the case if it |
5f5c8ee5 GM |
2632 | is either on a newline or on a carriage return and selective |
2633 | display hides the rest of the line. */ | |
2634 | ||
2635 | #define ITERATOR_AT_END_OF_LINE_P(IT) \ | |
2636 | ((IT)->what == IT_CHARACTER \ | |
2637 | && ((IT)->c == '\n' \ | |
2638 | || ((IT)->c == '\r' && (IT)->selective))) | |
2639 | ||
e3670e00 EZ |
2640 | /* Call produce_glyphs or FRAME_RIF->produce_glyphs, if set. Shortcut |
2641 | to avoid the function call overhead. */ | |
5f5c8ee5 | 2642 | |
fa971ac3 KL |
2643 | #define PRODUCE_GLYPHS(IT) \ |
2644 | do { \ | |
c0546589 | 2645 | if ((IT)->glyph_row != NULL && (IT)->bidi_p) \ |
96c06863 | 2646 | (IT)->glyph_row->reversed_p = (IT)->bidi_it.paragraph_dir == R2L; \ |
fa971ac3 KL |
2647 | if (FRAME_RIF ((IT)->f) != NULL) \ |
2648 | FRAME_RIF ((IT)->f)->produce_glyphs ((IT)); \ | |
2649 | else \ | |
2650 | produce_glyphs ((IT)); \ | |
2651 | if ((IT)->glyph_row != NULL) \ | |
96c06863 PE |
2652 | inhibit_free_realized_faces = true; \ |
2653 | } while (false) | |
5f5c8ee5 GM |
2654 | |
2655 | /* Bit-flags indicating what operation move_it_to should perform. */ | |
2656 | ||
2657 | enum move_operation_enum | |
2658 | { | |
2659 | /* Stop if specified x-position is reached. */ | |
2660 | MOVE_TO_X = 0x01, | |
2661 | ||
2662 | /* Stop if specified y-position is reached. */ | |
2663 | MOVE_TO_Y = 0x02, | |
2664 | ||
2665 | /* Stop if specified vpos is reached. */ | |
2666 | MOVE_TO_VPOS = 0x04, | |
2667 | ||
2668 | /* Stop if specified buffer or string position is reached. */ | |
2669 | MOVE_TO_POS = 0x08 | |
2670 | }; | |
2671 | ||
9fed9729 DA |
2672 | /*********************************************************************** |
2673 | Mouse Highlight | |
2674 | ***********************************************************************/ | |
2675 | ||
2676 | /* Structure to hold mouse highlight data. */ | |
2677 | ||
2678 | typedef struct { | |
2679 | /* These variables describe the range of text currently shown in its | |
2680 | mouse-face, together with the window they apply to. As long as | |
2681 | the mouse stays within this range, we need not redraw anything on | |
2682 | its account. Rows and columns are glyph matrix positions in | |
2683 | MOUSE_FACE_WINDOW. */ | |
2684 | int mouse_face_beg_row, mouse_face_beg_col, mouse_face_beg_x; | |
2685 | int mouse_face_end_row, mouse_face_end_col, mouse_face_end_x; | |
2686 | Lisp_Object mouse_face_window; | |
2687 | int mouse_face_face_id; | |
2688 | Lisp_Object mouse_face_overlay; | |
2689 | ||
2690 | /* FRAME and X, Y position of mouse when last checked for | |
2691 | highlighting. X and Y can be negative or out of range for the frame. */ | |
2692 | struct frame *mouse_face_mouse_frame; | |
2693 | int mouse_face_mouse_x, mouse_face_mouse_y; | |
2694 | ||
2695 | /* Nonzero if part of the text currently shown in | |
2696 | its mouse-face is beyond the window end. */ | |
96c06863 | 2697 | bool_bf mouse_face_past_end : 1; |
9fed9729 | 2698 | |
96c06863 PE |
2699 | /* True means defer mouse-motion highlighting. */ |
2700 | bool_bf mouse_face_defer : 1; | |
9fed9729 | 2701 | |
96c06863 PE |
2702 | /* True means that the mouse highlight should not be shown. */ |
2703 | bool_bf mouse_face_hidden : 1; | |
9fed9729 DA |
2704 | } Mouse_HLInfo; |
2705 | ||
00382e8b | 2706 | INLINE void |
9fed9729 DA |
2707 | reset_mouse_highlight (Mouse_HLInfo *hlinfo) |
2708 | { | |
2709 | ||
2710 | hlinfo->mouse_face_beg_row = hlinfo->mouse_face_beg_col = -1; | |
2711 | hlinfo->mouse_face_end_row = hlinfo->mouse_face_end_col = -1; | |
2712 | hlinfo->mouse_face_mouse_x = hlinfo->mouse_face_mouse_y = 0; | |
2713 | hlinfo->mouse_face_beg_x = hlinfo->mouse_face_end_x = 0; | |
2714 | hlinfo->mouse_face_face_id = DEFAULT_FACE_ID; | |
43aac990 | 2715 | hlinfo->mouse_face_mouse_frame = NULL; |
9fed9729 DA |
2716 | hlinfo->mouse_face_window = Qnil; |
2717 | hlinfo->mouse_face_overlay = Qnil; | |
96c06863 PE |
2718 | hlinfo->mouse_face_past_end = false; |
2719 | hlinfo->mouse_face_hidden = false; | |
2720 | hlinfo->mouse_face_defer = false; | |
9fed9729 | 2721 | } |
5f5c8ee5 | 2722 | |
5f5c8ee5 GM |
2723 | /*********************************************************************** |
2724 | Window-based redisplay interface | |
2725 | ***********************************************************************/ | |
2726 | ||
2727 | /* Structure used to describe runs of lines that must be scrolled. */ | |
2728 | ||
2729 | struct run | |
2730 | { | |
2731 | /* Source and destination y pixel position. */ | |
2732 | int desired_y, current_y; | |
2733 | ||
2734 | /* Source and destination vpos in matrix. */ | |
2735 | int desired_vpos, current_vpos; | |
2736 | ||
2737 | /* Height in pixels, number of glyph rows. */ | |
2738 | int height, nrows; | |
2739 | }; | |
2740 | ||
2741 | ||
e6b3aecd KS |
2742 | /* Handlers for setting frame parameters. */ |
2743 | ||
383e0970 | 2744 | typedef void (*frame_parm_handler) (struct frame *, Lisp_Object, Lisp_Object); |
e6b3aecd KS |
2745 | |
2746 | ||
5f5c8ee5 GM |
2747 | /* Structure holding system-dependent interface functions needed |
2748 | for window-based redisplay. */ | |
2749 | ||
2750 | struct redisplay_interface | |
2751 | { | |
e6b3aecd KS |
2752 | /* Handlers for setting frame parameters. */ |
2753 | frame_parm_handler *frame_parm_handlers; | |
2754 | ||
5f5c8ee5 GM |
2755 | /* Produce glyphs/get display metrics for the display element IT is |
2756 | loaded with. */ | |
383e0970 | 2757 | void (*produce_glyphs) (struct it *it); |
177c0ea7 | 2758 | |
5f5c8ee5 GM |
2759 | /* Write or insert LEN glyphs from STRING at the nominal output |
2760 | position. */ | |
7f780da6 DA |
2761 | void (*write_glyphs) (struct window *w, struct glyph_row *row, |
2762 | struct glyph *string, enum glyph_row_area area, | |
2763 | int len); | |
2764 | void (*insert_glyphs) (struct window *w, struct glyph_row *row, | |
2765 | struct glyph *start, enum glyph_row_area area, | |
2766 | int len); | |
5f5c8ee5 GM |
2767 | |
2768 | /* Clear from nominal output position to X. X < 0 means clear | |
2769 | to right end of display. */ | |
7f780da6 DA |
2770 | void (*clear_end_of_line) (struct window *w, struct glyph_row *row, |
2771 | enum glyph_row_area area, int x); | |
177c0ea7 | 2772 | |
5f5c8ee5 GM |
2773 | /* Function to call to scroll the display as described by RUN on |
2774 | window W. */ | |
383e0970 | 2775 | void (*scroll_run_hook) (struct window *w, struct run *run); |
5f5c8ee5 GM |
2776 | |
2777 | /* Function to call after a line in a display has been completely | |
2778 | updated. Used to draw truncation marks and alike. DESIRED_ROW | |
2779 | is the desired row which has been updated. */ | |
65620264 DA |
2780 | void (*after_update_window_line_hook) (struct window *w, |
2781 | struct glyph_row *desired_row); | |
42087301 | 2782 | |
5f5c8ee5 GM |
2783 | /* Function to call before beginning to update window W in |
2784 | window-based redisplay. */ | |
383e0970 | 2785 | void (*update_window_begin_hook) (struct window *w); |
5f5c8ee5 GM |
2786 | |
2787 | /* Function to call after window W has been updated in window-based | |
96c06863 PE |
2788 | redisplay. CURSOR_ON_P true means switch cursor on. |
2789 | MOUSE_FACE_OVERWRITTEN_P true means that some lines in W | |
712eaef2 | 2790 | that contained glyphs in mouse-face were overwritten, so we |
54bff0bd | 2791 | have to update the mouse highlight. */ |
9997ec56 DA |
2792 | void (*update_window_end_hook) (struct window *w, bool cursor_on_p, |
2793 | bool mouse_face_overwritten_p); | |
177c0ea7 | 2794 | |
5f5c8ee5 | 2795 | /* Flush the display of frame F. For X, this is XFlush. */ |
383e0970 | 2796 | void (*flush_display) (struct frame *f); |
5f5c8ee5 | 2797 | |
cd1181db | 2798 | /* Clear the mouse highlight in window W, if there is any. */ |
383e0970 | 2799 | void (*clear_window_mouse_face) (struct window *w); |
712eaef2 | 2800 | |
5f5c8ee5 GM |
2801 | /* Set *LEFT and *RIGHT to the left and right overhang of GLYPH on |
2802 | frame F. */ | |
383e0970 J |
2803 | void (*get_glyph_overhangs) (struct glyph *glyph, struct frame *f, |
2804 | int *left, int *right); | |
2febf6e0 GM |
2805 | |
2806 | /* Fix the display of AREA of ROW in window W for overlapping rows. | |
2807 | This function is called from redraw_overlapping_rows after | |
2808 | desired rows have been made current. */ | |
383e0970 J |
2809 | void (*fix_overlapping_area) (struct window *w, struct glyph_row *row, |
2810 | enum glyph_row_area area, int); | |
f4e1400d | 2811 | |
79fa9e0f KS |
2812 | #ifdef HAVE_WINDOW_SYSTEM |
2813 | ||
f4e1400d | 2814 | /* Draw a fringe bitmap in window W of row ROW using parameters P. */ |
383e0970 J |
2815 | void (*draw_fringe_bitmap) (struct window *w, struct glyph_row *row, |
2816 | struct draw_fringe_bitmap_params *p); | |
f4e1400d | 2817 | |
6b61353c | 2818 | /* Define and destroy fringe bitmap no. WHICH. */ |
383e0970 J |
2819 | void (*define_fringe_bitmap) (int which, unsigned short *bits, |
2820 | int h, int wd); | |
2821 | void (*destroy_fringe_bitmap) (int which); | |
6b61353c | 2822 | |
0633d52c | 2823 | /* Compute left and right overhang of glyph string S. |
d5cc60b8 | 2824 | A NULL pointer if platform does not support this. */ |
383e0970 | 2825 | void (*compute_glyph_string_overhangs) (struct glyph_string *s); |
d5cc60b8 KS |
2826 | |
2827 | /* Draw a glyph string S. */ | |
383e0970 | 2828 | void (*draw_glyph_string) (struct glyph_string *s); |
d5cc60b8 | 2829 | |
d74b2553 | 2830 | /* Define cursor CURSOR on frame F. */ |
383e0970 | 2831 | void (*define_frame_cursor) (struct frame *f, Cursor cursor); |
5f5c8ee5 | 2832 | |
d74b2553 | 2833 | /* Clear the area at (X,Y,WIDTH,HEIGHT) of frame F. */ |
383e0970 J |
2834 | void (*clear_frame_area) (struct frame *f, int x, int y, |
2835 | int width, int height); | |
5f5c8ee5 | 2836 | |
e5a3b7d9 | 2837 | /* Draw specified cursor CURSOR_TYPE of width CURSOR_WIDTH |
96c06863 PE |
2838 | at row GLYPH_ROW on window W if ON_P is true. If ON_P is |
2839 | false, don't draw cursor. If ACTIVE_P is true, system caret | |
e5a3b7d9 | 2840 | should track this cursor (when applicable). */ |
383e0970 | 2841 | void (*draw_window_cursor) (struct window *w, |
9997ec56 DA |
2842 | struct glyph_row *glyph_row, |
2843 | int x, int y, | |
2844 | enum text_cursor_kinds cursor_type, | |
2845 | int cursor_width, bool on_p, bool active_p); | |
5f5c8ee5 | 2846 | |
3c647824 | 2847 | /* Draw vertical border for window W from (X,Y_0) to (X,Y_1). */ |
383e0970 | 2848 | void (*draw_vertical_window_border) (struct window *w, |
3c647824 | 2849 | int x, int y_0, int y_1); |
d5cc60b8 | 2850 | |
880e6158 MR |
2851 | /* Draw window divider for window W from (X_0, Y_0) to (X_1, ,Y_1). */ |
2852 | void (*draw_window_divider) (struct window *w, | |
2853 | int x_0, int x_1, int y_0, int y_1); | |
2854 | ||
0633d52c | 2855 | /* Shift display of frame F to make room for inserted glyphs. |
d74b2553 KS |
2856 | The area at pixel (X,Y) of width WIDTH and height HEIGHT is |
2857 | shifted right by SHIFT_BY pixels. */ | |
383e0970 J |
2858 | void (*shift_glyphs_for_insert) (struct frame *f, |
2859 | int x, int y, int width, | |
2860 | int height, int shift_by); | |
d5cc60b8 | 2861 | |
d74b2553 KS |
2862 | #endif /* HAVE_WINDOW_SYSTEM */ |
2863 | }; | |
d5cc60b8 | 2864 | |
5f5c8ee5 GM |
2865 | \f |
2866 | /*********************************************************************** | |
2867 | Images | |
2868 | ***********************************************************************/ | |
2869 | ||
4397e334 | 2870 | #ifdef HAVE_WINDOW_SYSTEM |
5f5c8ee5 | 2871 | |
54bff0bd | 2872 | /* Each image format (JPEG, TIFF, ...) supported is described by |
5f5c8ee5 GM |
2873 | a structure of the type below. */ |
2874 | ||
2875 | struct image_type | |
2876 | { | |
2877 | /* A symbol uniquely identifying the image type, .e.g `jpeg'. */ | |
2878 | Lisp_Object *type; | |
2879 | ||
2880 | /* Check that SPEC is a valid image specification for the given | |
578098f3 PE |
2881 | image type. Value is true if SPEC is valid. */ |
2882 | bool (* valid_p) (Lisp_Object spec); | |
5f5c8ee5 GM |
2883 | |
2884 | /* Load IMG which is used on frame F from information contained in | |
578098f3 PE |
2885 | IMG->spec. Value is true if successful. */ |
2886 | bool (* load) (struct frame *f, struct image *img); | |
5f5c8ee5 GM |
2887 | |
2888 | /* Free resources of image IMG which is used on frame F. */ | |
383e0970 | 2889 | void (* free) (struct frame *f, struct image *img); |
9f2279ad | 2890 | |
bb4d86b4 CY |
2891 | /* Initialization function (used for dynamic loading of image |
2892 | libraries on Windows), or NULL if none. */ | |
578098f3 | 2893 | bool (* init) (void); |
bb4d86b4 | 2894 | |
5f5c8ee5 GM |
2895 | /* Next in list of all supported image types. */ |
2896 | struct image_type *next; | |
2897 | }; | |
9f2279ad | 2898 | |
9f2279ad | 2899 | |
5f5c8ee5 GM |
2900 | /* Structure describing an image. Specific image formats like XBM are |
2901 | converted into this form, so that display only has to deal with | |
2902 | this type of image. */ | |
9f2279ad | 2903 | |
5f5c8ee5 GM |
2904 | struct image |
2905 | { | |
2906 | /* The time in seconds at which the image was last displayed. Set | |
2907 | in prepare_image_for_display. */ | |
43aac990 | 2908 | struct timespec timestamp; |
9f2279ad | 2909 | |
5f5c8ee5 GM |
2910 | /* Pixmaps of the image. */ |
2911 | Pixmap pixmap, mask; | |
9f2279ad | 2912 | |
547c9269 YM |
2913 | #ifdef HAVE_X_WINDOWS |
2914 | /* X images of the image, corresponding to the above Pixmaps. | |
2915 | Non-NULL means it and its Pixmap counterpart may be out of sync | |
2916 | and the latter is outdated. NULL means the X image has been | |
2917 | synchronized to Pixmap. */ | |
2918 | XImagePtr ximg, mask_img; | |
2919 | #endif | |
2920 | ||
5f5c8ee5 GM |
2921 | /* Colors allocated for this image, if any. Allocated via xmalloc. */ |
2922 | unsigned long *colors; | |
2923 | int ncolors; | |
9f2279ad | 2924 | |
0ff7c0d4 MB |
2925 | /* A single `background color' for this image, for the use of anyone that |
2926 | cares about such a thing. Only valid if the `background_valid' field | |
2927 | is true. This should generally be accessed by calling the accessor | |
2928 | macro `IMAGE_BACKGROUND', which will heuristically calculate a value | |
2929 | if necessary. */ | |
2930 | unsigned long background; | |
2931 | ||
f6b54648 YM |
2932 | /* Foreground and background colors of the frame on which the image |
2933 | is created. */ | |
2934 | unsigned long frame_foreground, frame_background; | |
2935 | ||
0ff7c0d4 MB |
2936 | /* True if this image has a `transparent' background -- that is, is |
2937 | uses an image mask. The accessor macro for this is | |
2938 | `IMAGE_BACKGROUND_TRANSPARENT'. */ | |
96c06863 | 2939 | bool_bf background_transparent : 1; |
0ff7c0d4 MB |
2940 | |
2941 | /* True if the `background' and `background_transparent' fields are | |
2942 | valid, respectively. */ | |
96c06863 | 2943 | bool_bf background_valid : 1, background_transparent_valid : 1; |
0ff7c0d4 | 2944 | |
5f5c8ee5 GM |
2945 | /* Width and height of the image. */ |
2946 | int width, height; | |
87485d6f | 2947 | |
5f5c8ee5 GM |
2948 | /* These values are used for the rectangles displayed for images |
2949 | that can't be loaded. */ | |
2950 | #define DEFAULT_IMAGE_WIDTH 30 | |
2951 | #define DEFAULT_IMAGE_HEIGHT 30 | |
9f2279ad | 2952 | |
7b48cc13 KS |
2953 | /* Top/left and bottom/right corner pixel of actual image data. |
2954 | Used by four_corners_best to consider the real image data, | |
2955 | rather than looking at the optional image margin. */ | |
2956 | int corners[4]; | |
2957 | #define TOP_CORNER 0 | |
2958 | #define LEFT_CORNER 1 | |
2959 | #define BOT_CORNER 2 | |
2960 | #define RIGHT_CORNER 3 | |
2961 | ||
bdda7eb0 | 2962 | /* Percent of image height used as ascent. A value of |
54bff0bd | 2963 | CENTERED_IMAGE_ASCENT means draw the image centered on the |
bdda7eb0 | 2964 | line. */ |
5f5c8ee5 GM |
2965 | int ascent; |
2966 | #define DEFAULT_IMAGE_ASCENT 50 | |
bdda7eb0 | 2967 | #define CENTERED_IMAGE_ASCENT -1 |
c22ca93b | 2968 | |
5f5c8ee5 GM |
2969 | /* Lisp specification of this image. */ |
2970 | Lisp_Object spec; | |
c22ca93b | 2971 | |
a2bc5bdd SM |
2972 | /* List of "references" followed to build the image. |
2973 | Typically will just contain the name of the image file. | |
2974 | Used to allow fine-grained cache flushing. */ | |
2975 | Lisp_Object dependencies; | |
2976 | ||
5f5c8ee5 GM |
2977 | /* Relief to draw around the image. */ |
2978 | int relief; | |
c22ca93b | 2979 | |
f8215993 GM |
2980 | /* Optional margins around the image. This includes the relief. */ |
2981 | int hmargin, vmargin; | |
5f5c8ee5 GM |
2982 | |
2983 | /* Reference to the type of the image. */ | |
2984 | struct image_type *type; | |
2985 | ||
96c06863 PE |
2986 | /* True means that loading the image failed. Don't try again. */ |
2987 | bool load_failed_p; | |
a7ac64a9 | 2988 | |
b50691aa CY |
2989 | /* A place for image types to store additional data. It is marked |
2990 | during GC. */ | |
2991 | Lisp_Object lisp_data; | |
c22ca93b | 2992 | |
5f5c8ee5 | 2993 | /* Hash value of image specification to speed up comparisons. */ |
0de4bb68 | 2994 | EMACS_UINT hash; |
5f5c8ee5 GM |
2995 | |
2996 | /* Image id of this image. */ | |
13464394 | 2997 | ptrdiff_t id; |
5f5c8ee5 GM |
2998 | |
2999 | /* Hash collision chain. */ | |
3000 | struct image *next, *prev; | |
3001 | }; | |
3002 | ||
3003 | ||
3004 | /* Cache of images. Each frame has a cache. X frames with the same | |
3005 | x_display_info share their caches. */ | |
3006 | ||
3007 | struct image_cache | |
3008 | { | |
3009 | /* Hash table of images. */ | |
3010 | struct image **buckets; | |
3011 | ||
3012 | /* Vector mapping image ids to images. */ | |
3013 | struct image **images; | |
3014 | ||
3015 | /* Allocated size of `images'. */ | |
13464394 | 3016 | ptrdiff_t size; |
5f5c8ee5 GM |
3017 | |
3018 | /* Number of images in the cache. */ | |
13464394 | 3019 | ptrdiff_t used; |
5f5c8ee5 GM |
3020 | |
3021 | /* Reference count (number of frames sharing this cache). */ | |
13464394 | 3022 | ptrdiff_t refcount; |
5f5c8ee5 GM |
3023 | }; |
3024 | ||
3025 | ||
5f5c8ee5 GM |
3026 | /* Value is a pointer to the image with id ID on frame F, or null if |
3027 | no image with that id exists. */ | |
3028 | ||
3029 | #define IMAGE_FROM_ID(F, ID) \ | |
354884c4 SM |
3030 | (((ID) >= 0 && (ID) < (FRAME_IMAGE_CACHE (F)->used)) \ |
3031 | ? FRAME_IMAGE_CACHE (F)->images[ID] \ | |
5f5c8ee5 GM |
3032 | : NULL) |
3033 | ||
3034 | /* Size of bucket vector of image caches. Should be prime. */ | |
3035 | ||
3036 | #define IMAGE_CACHE_BUCKETS_SIZE 1001 | |
3037 | ||
4397e334 | 3038 | #endif /* HAVE_WINDOW_SYSTEM */ |
5f5c8ee5 GM |
3039 | |
3040 | ||
3041 | \f | |
3042 | /*********************************************************************** | |
9ea173e8 | 3043 | Tool-bars |
5f5c8ee5 GM |
3044 | ***********************************************************************/ |
3045 | ||
9ea173e8 GM |
3046 | /* Enumeration defining where to find tool-bar item information in |
3047 | tool-bar items vectors stored with frames. Each tool-bar item | |
3048 | occupies TOOL_BAR_ITEM_NSLOTS elements in such a vector. */ | |
5f5c8ee5 | 3049 | |
9ea173e8 | 3050 | enum tool_bar_item_idx |
5f5c8ee5 | 3051 | { |
9ea173e8 | 3052 | /* The key of the tool-bar item. Used to remove items when a binding |
5f5c8ee5 | 3053 | for `undefined' is found. */ |
9ea173e8 | 3054 | TOOL_BAR_ITEM_KEY, |
5f5c8ee5 GM |
3055 | |
3056 | /* Non-nil if item is enabled. */ | |
9ea173e8 | 3057 | TOOL_BAR_ITEM_ENABLED_P, |
5f5c8ee5 GM |
3058 | |
3059 | /* Non-nil if item is selected (pressed). */ | |
9ea173e8 | 3060 | TOOL_BAR_ITEM_SELECTED_P, |
5f5c8ee5 GM |
3061 | |
3062 | /* Caption. */ | |
9ea173e8 | 3063 | TOOL_BAR_ITEM_CAPTION, |
5f5c8ee5 GM |
3064 | |
3065 | /* Image(s) to display. This is either a single image specification | |
3066 | or a vector of specifications. */ | |
9ea173e8 | 3067 | TOOL_BAR_ITEM_IMAGES, |
5f5c8ee5 GM |
3068 | |
3069 | /* The binding. */ | |
9ea173e8 | 3070 | TOOL_BAR_ITEM_BINDING, |
5f5c8ee5 | 3071 | |
4039c786 CY |
3072 | /* Button type. One of nil (default button), t (a separator), |
3073 | `:radio', or `:toggle'. The latter two currently do nothing. */ | |
9ea173e8 | 3074 | TOOL_BAR_ITEM_TYPE, |
c22ca93b | 3075 | |
5f5c8ee5 | 3076 | /* Help string. */ |
9ea173e8 | 3077 | TOOL_BAR_ITEM_HELP, |
5f5c8ee5 | 3078 | |
fface677 JD |
3079 | /* Icon file name of right to left image when an RTL locale is used. */ |
3080 | TOOL_BAR_ITEM_RTL_IMAGE, | |
3081 | ||
f904c0f9 JD |
3082 | /* Label to show when text labels are enabled. */ |
3083 | TOOL_BAR_ITEM_LABEL, | |
3084 | ||
d2bd5189 JD |
3085 | /* If we shall show the label only below the icon and not beside it. */ |
3086 | TOOL_BAR_ITEM_VERT_ONLY, | |
3087 | ||
9ea173e8 GM |
3088 | /* Sentinel = number of slots in tool_bar_items occupied by one |
3089 | tool-bar item. */ | |
3090 | TOOL_BAR_ITEM_NSLOTS | |
5f5c8ee5 GM |
3091 | }; |
3092 | ||
3093 | ||
3094 | /* An enumeration for the different images that can be specified | |
9ea173e8 | 3095 | for a tool-bar item. */ |
5f5c8ee5 | 3096 | |
9ea173e8 | 3097 | enum tool_bar_item_image |
5f5c8ee5 | 3098 | { |
9ea173e8 GM |
3099 | TOOL_BAR_IMAGE_ENABLED_SELECTED, |
3100 | TOOL_BAR_IMAGE_ENABLED_DESELECTED, | |
3101 | TOOL_BAR_IMAGE_DISABLED_SELECTED, | |
3102 | TOOL_BAR_IMAGE_DISABLED_DESELECTED | |
5f5c8ee5 GM |
3103 | }; |
3104 | ||
f904c0f9 JD |
3105 | #define DEFAULT_TOOL_BAR_LABEL_SIZE 14 |
3106 | ||
cc4cb755 GM |
3107 | /* Default values of the above variables. */ |
3108 | ||
cfa5cf43 PJ |
3109 | #define DEFAULT_TOOL_BAR_BUTTON_MARGIN 4 |
3110 | #define DEFAULT_TOOL_BAR_BUTTON_RELIEF 1 | |
cc4cb755 GM |
3111 | |
3112 | /* The height in pixels of the default tool-bar images. */ | |
3113 | ||
3114 | #define DEFAULT_TOOL_BAR_IMAGE_HEIGHT 24 | |
5f5c8ee5 GM |
3115 | |
3116 | \f | |
3117 | /*********************************************************************** | |
a0816661 MB |
3118 | Terminal Capabilities |
3119 | ***********************************************************************/ | |
3120 | ||
8da139bc MB |
3121 | /* Each of these is a bit representing a terminal `capability' (bold, |
3122 | inverse, etc). They are or'd together to specify the set of | |
3123 | capabilities being queried for when calling `tty_capable_p' (which | |
3124 | returns true if the terminal supports all of them). */ | |
f0be5454 | 3125 | |
a0816661 MB |
3126 | #define TTY_CAP_INVERSE 0x01 |
3127 | #define TTY_CAP_UNDERLINE 0x02 | |
3128 | #define TTY_CAP_BOLD 0x04 | |
3129 | #define TTY_CAP_DIM 0x08 | |
cd4eb164 | 3130 | #define TTY_CAP_ITALIC 0x10 |
a0816661 MB |
3131 | |
3132 | \f | |
3133 | /*********************************************************************** | |
3134 | Function Prototypes | |
5f5c8ee5 GM |
3135 | ***********************************************************************/ |
3136 | ||
b7b65b15 EZ |
3137 | /* Defined in bidi.c */ |
3138 | ||
2cc21167 | 3139 | extern void bidi_init_it (ptrdiff_t, ptrdiff_t, bool, struct bidi_it *); |
383e0970 | 3140 | extern void bidi_move_to_visually_next (struct bidi_it *); |
2cc21167 | 3141 | extern void bidi_paragraph_init (bidi_dir_t, struct bidi_it *, bool); |
383e0970 | 3142 | extern int bidi_mirror_char (int); |
58b9f433 EZ |
3143 | extern void bidi_push_it (struct bidi_it *); |
3144 | extern void bidi_pop_it (struct bidi_it *); | |
ed94e6d7 | 3145 | extern void *bidi_shelve_cache (void); |
2cc21167 | 3146 | extern void bidi_unshelve_cache (void *, bool); |
b7b65b15 | 3147 | |
5f5c8ee5 GM |
3148 | /* Defined in xdisp.c */ |
3149 | ||
d311d28c | 3150 | struct glyph_row *row_containing_pos (struct window *, ptrdiff_t, |
383e0970 J |
3151 | struct glyph_row *, |
3152 | struct glyph_row *, int); | |
383e0970 | 3153 | int line_bottom_y (struct it *); |
fdda0220 | 3154 | int default_line_pixel_height (struct window *); |
d311d28c | 3155 | int display_prop_intangible_p (Lisp_Object, Lisp_Object, ptrdiff_t, ptrdiff_t); |
383e0970 J |
3156 | void resize_echo_area_exactly (void); |
3157 | int resize_mini_window (struct window *, int); | |
4887c6e2 | 3158 | void set_vertical_scroll_bar (struct window *); |
383e0970 | 3159 | int try_window (Lisp_Object, struct text_pos, int); |
c3c4768d DA |
3160 | void window_box (struct window *, enum glyph_row_area, |
3161 | int *, int *, int *, int *); | |
383e0970 J |
3162 | int window_box_height (struct window *); |
3163 | int window_text_bottom_y (struct window *); | |
c3c4768d DA |
3164 | int window_box_width (struct window *, enum glyph_row_area); |
3165 | int window_box_left (struct window *, enum glyph_row_area); | |
3166 | int window_box_left_offset (struct window *, enum glyph_row_area); | |
3167 | int window_box_right (struct window *, enum glyph_row_area); | |
3168 | int window_box_right_offset (struct window *, enum glyph_row_area); | |
383e0970 | 3169 | int estimate_mode_line_height (struct frame *, enum face_id); |
880e6158 | 3170 | int move_it_to (struct it *, ptrdiff_t, int, int, int, int); |
383e0970 J |
3171 | void pixel_to_glyph_coords (struct frame *, int, int, int *, int *, |
3172 | NativeRectangle *, int); | |
383e0970 J |
3173 | void remember_mouse_glyph (struct frame *, int, int, NativeRectangle *); |
3174 | ||
3175 | void mark_window_display_accurate (Lisp_Object, int); | |
3176 | void redisplay_preserve_echo_area (int); | |
d311d28c PE |
3177 | void init_iterator (struct it *, struct window *, ptrdiff_t, |
3178 | ptrdiff_t, struct glyph_row *, enum face_id); | |
383e0970 J |
3179 | void init_iterator_to_row_start (struct it *, struct window *, |
3180 | struct glyph_row *); | |
383e0970 | 3181 | void start_display (struct it *, struct window *, struct text_pos); |
383e0970 J |
3182 | void move_it_vertically (struct it *, int); |
3183 | void move_it_vertically_backward (struct it *, int); | |
d311d28c | 3184 | void move_it_by_lines (struct it *, ptrdiff_t); |
383e0970 | 3185 | void move_it_past_eol (struct it *); |
c876b227 | 3186 | void move_it_in_display_line (struct it *it, |
d311d28c | 3187 | ptrdiff_t to_charpos, int to_x, |
c876b227 | 3188 | enum move_operation_enum op); |
96c06863 | 3189 | bool in_display_vector_p (struct it *); |
383e0970 | 3190 | int frame_mode_line_height (struct frame *); |
9ea173e8 | 3191 | extern Lisp_Object Qtool_bar; |
1882aa38 | 3192 | extern bool redisplaying_p; |
e08813d0 | 3193 | extern bool help_echo_showing_p; |
d74b2553 | 3194 | extern Lisp_Object help_echo_string, help_echo_window; |
0633d52c | 3195 | extern Lisp_Object help_echo_object, previous_help_echo_string; |
d311d28c | 3196 | extern ptrdiff_t help_echo_pos; |
383e0970 | 3197 | extern void reseat_at_previous_visible_line_start (struct it *); |
b18fad6d | 3198 | extern Lisp_Object lookup_glyphless_char_display (int, struct it *); |
d311d28c | 3199 | extern ptrdiff_t compute_display_string_pos (struct text_pos *, |
55439c61 | 3200 | struct bidi_string_data *, |
5bf97bfc | 3201 | struct window *, int, int *); |
d311d28c | 3202 | extern ptrdiff_t compute_display_string_end (ptrdiff_t, |
87e67904 | 3203 | struct bidi_string_data *); |
148ae00e | 3204 | extern void produce_stretch_glyph (struct it *); |
77394d40 | 3205 | extern int merge_glyphless_glyph_face (struct it *); |
6b61353c | 3206 | |
d74b2553 | 3207 | #ifdef HAVE_WINDOW_SYSTEM |
5f5c8ee5 | 3208 | |
e509cfa6 | 3209 | #ifdef GLYPH_DEBUG |
85fece3e | 3210 | extern void dump_glyph_string (struct glyph_string *) EXTERNALLY_VISIBLE; |
d5cc60b8 KS |
3211 | #endif |
3212 | ||
383e0970 J |
3213 | extern void x_get_glyph_overhangs (struct glyph *, struct frame *, |
3214 | int *, int *); | |
3215 | extern void x_produce_glyphs (struct it *); | |
d5cc60b8 | 3216 | |
7f780da6 DA |
3217 | extern void x_write_glyphs (struct window *, struct glyph_row *, |
3218 | struct glyph *, enum glyph_row_area, int); | |
3219 | extern void x_insert_glyphs (struct window *, struct glyph_row *, | |
3220 | struct glyph *, enum glyph_row_area, int); | |
3221 | extern void x_clear_end_of_line (struct window *, struct glyph_row *, | |
3222 | enum glyph_row_area, int); | |
383e0970 J |
3223 | extern void x_fix_overlapping_area (struct window *, struct glyph_row *, |
3224 | enum glyph_row_area, int); | |
3225 | extern void draw_phys_cursor_glyph (struct window *, | |
3226 | struct glyph_row *, | |
3227 | enum draw_glyphs_face); | |
3228 | extern void get_phys_cursor_geometry (struct window *, struct glyph_row *, | |
3229 | struct glyph *, int *, int *, int *); | |
3230 | extern void erase_phys_cursor (struct window *); | |
9997ec56 | 3231 | extern void display_and_set_cursor (struct window *, bool, int, int, int, int); |
9997ec56 | 3232 | extern void x_update_cursor (struct frame *, bool); |
383e0970 J |
3233 | extern void x_clear_cursor (struct window *); |
3234 | extern void x_draw_vertical_border (struct window *w); | |
880e6158 | 3235 | extern void x_draw_right_divider (struct window *w); |
383e0970 | 3236 | |
383e0970 J |
3237 | extern int get_glyph_string_clip_rects (struct glyph_string *, |
3238 | NativeRectangle *, int); | |
3239 | extern void get_glyph_string_clip_rect (struct glyph_string *, | |
3240 | NativeRectangle *nr); | |
3241 | extern Lisp_Object find_hot_spot (Lisp_Object, int, int); | |
383e0970 J |
3242 | |
3243 | extern void handle_tool_bar_click (struct frame *, | |
d311d28c | 3244 | int, int, int, int); |
d74b2553 | 3245 | |
383e0970 J |
3246 | extern void expose_frame (struct frame *, int, int, int, int); |
3247 | extern int x_intersect_rectangles (XRectangle *, XRectangle *, | |
3248 | XRectangle *); | |
d009ae66 EZ |
3249 | #endif /* HAVE_WINDOW_SYSTEM */ |
3250 | ||
d009ae66 EZ |
3251 | extern void note_mouse_highlight (struct frame *, int, int); |
3252 | extern void x_clear_window_mouse_face (struct window *); | |
3253 | extern void cancel_mouse_face (struct frame *); | |
28118eb6 | 3254 | extern int clear_mouse_face (Mouse_HLInfo *); |
96c06863 | 3255 | extern bool cursor_in_mouse_face_p (struct window *w); |
28118eb6 EZ |
3256 | extern void tty_draw_row_with_mouse_face (struct window *, struct glyph_row *, |
3257 | int, int, enum draw_glyphs_face); | |
342cf494 | 3258 | extern void display_tty_menu_item (const char *, int, int, int, int, int); |
d5cc60b8 | 3259 | |
6eff5c3d YM |
3260 | /* Flags passed to try_window. */ |
3261 | #define TRY_WINDOW_CHECK_MARGINS (1 << 0) | |
3262 | #define TRY_WINDOW_IGNORE_FONTS_CHANGE (1 << 1) | |
3263 | ||
e72d7335 | 3264 | int lookup_fringe_bitmap (Lisp_Object); |
383e0970 J |
3265 | void draw_fringe_bitmap (struct window *, struct glyph_row *, int); |
3266 | void draw_row_fringe_bitmaps (struct window *, struct glyph_row *); | |
d7e6881a DA |
3267 | bool draw_window_fringes (struct window *, bool); |
3268 | bool update_window_fringes (struct window *, bool); | |
3269 | void compute_fringe_widths (struct frame *, bool); | |
6b61353c | 3270 | |
0fda9b75 | 3271 | #ifdef HAVE_NTGUI |
383e0970 J |
3272 | void w32_init_fringe (struct redisplay_interface *); |
3273 | void w32_reset_fringes (void); | |
6b61353c | 3274 | #endif |
015137db EZ |
3275 | |
3276 | extern unsigned row_hash (struct glyph_row *); | |
3277 | ||
6b61353c KH |
3278 | /* Defined in image.c */ |
3279 | ||
3280 | #ifdef HAVE_WINDOW_SYSTEM | |
3281 | ||
62aba0d4 | 3282 | extern ptrdiff_t x_bitmap_pixmap (struct frame *, ptrdiff_t); |
13464394 | 3283 | extern void x_reference_bitmap (struct frame *, ptrdiff_t); |
0766b489 PE |
3284 | extern ptrdiff_t x_create_bitmap_from_data (struct frame *, char *, |
3285 | unsigned int, unsigned int); | |
3286 | extern ptrdiff_t x_create_bitmap_from_file (struct frame *, Lisp_Object); | |
cd44d2eb | 3287 | #if defined HAVE_XPM && defined HAVE_X_WINDOWS && !defined USE_GTK |
0766b489 | 3288 | extern ptrdiff_t x_create_bitmap_from_xpm_data (struct frame *, const char **); |
516c741d | 3289 | #endif |
6b61353c | 3290 | #ifndef x_destroy_bitmap |
0766b489 | 3291 | extern void x_destroy_bitmap (struct frame *, ptrdiff_t); |
6b61353c | 3292 | #endif |
383e0970 | 3293 | extern void x_destroy_all_bitmaps (Display_Info *); |
578098f3 | 3294 | extern void x_create_bitmap_mask (struct frame *, ptrdiff_t); |
383e0970 J |
3295 | extern Lisp_Object x_find_image_file (Lisp_Object); |
3296 | ||
3297 | void x_kill_gs_process (Pixmap, struct frame *); | |
3298 | struct image_cache *make_image_cache (void); | |
3299 | void free_image_cache (struct frame *); | |
3300 | void clear_image_caches (Lisp_Object); | |
3301 | void mark_image_cache (struct image_cache *); | |
578098f3 | 3302 | bool valid_image_p (Lisp_Object); |
383e0970 | 3303 | void prepare_image_for_display (struct frame *, struct image *); |
13464394 | 3304 | ptrdiff_t lookup_image (struct frame *, Lisp_Object); |
383e0970 | 3305 | |
6db423a9 KB |
3306 | #if defined (HAVE_X_WINDOWS) || defined (HAVE_NS) |
3307 | #define RGB_PIXEL_COLOR unsigned long | |
3308 | #endif | |
3309 | ||
3310 | #ifdef HAVE_NTGUI | |
3311 | #define RGB_PIXEL_COLOR COLORREF | |
3312 | #endif | |
3313 | ||
3314 | RGB_PIXEL_COLOR image_background (struct image *, struct frame *, | |
383e0970 J |
3315 | XImagePtr_or_DC ximg); |
3316 | int image_background_transparent (struct image *, struct frame *, | |
3317 | XImagePtr_or_DC mask); | |
3318 | ||
3319 | int image_ascent (struct image *, struct face *, struct glyph_slice *); | |
0633d52c | 3320 | |
6b61353c KH |
3321 | #endif |
3322 | ||
5f5c8ee5 GM |
3323 | /* Defined in sysdep.c */ |
3324 | ||
383e0970 | 3325 | void get_tty_size (int, int *, int *); |
653d4f43 | 3326 | bool tabs_safe_p (int); |
383e0970 J |
3327 | void init_baud_rate (int); |
3328 | void init_sigio (int); | |
4a4bbad2 | 3329 | void ignore_sigio (void); |
5f5c8ee5 | 3330 | |
3472b6c6 | 3331 | /* Defined in xfaces.c. */ |
8317e104 | 3332 | |
2ad412d7 | 3333 | #ifdef HAVE_X_WINDOWS |
0085b9be | 3334 | void unload_color (struct frame *, unsigned long); |
383e0970 | 3335 | void x_free_colors (struct frame *, unsigned long *, int); |
2ad412d7 | 3336 | #endif |
5f5c8ee5 | 3337 | |
383e0970 J |
3338 | void update_face_from_frame_parameter (struct frame *, Lisp_Object, |
3339 | Lisp_Object); | |
3340 | Lisp_Object tty_color_name (struct frame *, int); | |
3341 | void clear_face_cache (int); | |
3342 | unsigned long load_color (struct frame *, struct face *, Lisp_Object, | |
3343 | enum lface_attribute_index); | |
383e0970 J |
3344 | char *choose_face_font (struct frame *, Lisp_Object *, Lisp_Object, |
3345 | int *); | |
2e120be4 | 3346 | #ifdef HAVE_WINDOW_SYSTEM |
383e0970 | 3347 | void prepare_face_for_display (struct frame *, struct face *); |
2e120be4 | 3348 | #endif |
383e0970 J |
3349 | int lookup_named_face (struct frame *, Lisp_Object, int); |
3350 | int lookup_basic_face (struct frame *, int); | |
3351 | int smaller_face (struct frame *, int, int); | |
3352 | int face_with_height (struct frame *, int, int); | |
3353 | int lookup_derived_face (struct frame *, Lisp_Object, int, int); | |
3354 | void init_frame_faces (struct frame *); | |
3355 | void free_frame_faces (struct frame *); | |
3356 | void recompute_basic_faces (struct frame *); | |
d311d28c | 3357 | int face_at_buffer_position (struct window *w, ptrdiff_t pos, |
d311d28c | 3358 | ptrdiff_t *endptr, ptrdiff_t limit, |
383e0970 | 3359 | int mouse, int base_face_id); |
d311d28c | 3360 | int face_for_overlay_string (struct window *w, ptrdiff_t pos, |
d311d28c | 3361 | ptrdiff_t *endptr, ptrdiff_t limit, |
383e0970 J |
3362 | int mouse, Lisp_Object overlay); |
3363 | int face_at_string_position (struct window *w, Lisp_Object string, | |
d311d28c | 3364 | ptrdiff_t pos, ptrdiff_t bufpos, |
d311d28c PE |
3365 | ptrdiff_t *endptr, enum face_id, int mouse); |
3366 | int merge_faces (struct frame *, Lisp_Object, int, int); | |
383e0970 J |
3367 | int compute_char_face (struct frame *, int, Lisp_Object); |
3368 | void free_all_realized_faces (Lisp_Object); | |
5f5c8ee5 | 3369 | extern Lisp_Object Qforeground_color, Qbackground_color; |
f0ba2d22 | 3370 | extern char unspecified_fg[], unspecified_bg[]; |
5f5c8ee5 | 3371 | |
3472b6c6 | 3372 | /* Defined in xfns.c. */ |
5f5c8ee5 | 3373 | |
4397e334 | 3374 | #ifdef HAVE_X_WINDOWS |
383e0970 | 3375 | void gamma_correct (struct frame *, XColor *); |
4397e334 | 3376 | #endif |
0fda9b75 | 3377 | #ifdef HAVE_NTGUI |
383e0970 | 3378 | void gamma_correct (struct frame *, COLORREF *); |
4397e334 AI |
3379 | #endif |
3380 | ||
3381 | #ifdef HAVE_WINDOW_SYSTEM | |
3382 | ||
383e0970 | 3383 | void x_implicitly_set_name (struct frame *, Lisp_Object, Lisp_Object); |
c26e3f6c | 3384 | |
4811586b | 3385 | extern Lisp_Object tip_frame; |
5f5c8ee5 | 3386 | extern Window tip_window; |
a411ac43 PE |
3387 | extern frame_parm_handler x_frame_parm_handlers[]; |
3388 | ||
383e0970 J |
3389 | extern void start_hourglass (void); |
3390 | extern void cancel_hourglass (void); | |
e08813d0 | 3391 | extern bool hourglass_shown_p; |
1885ab29 AR |
3392 | /* If non-null, an asynchronous timer that, when it expires, displays |
3393 | an hourglass cursor on all frames. */ | |
3394 | extern struct atimer *hourglass_atimer; | |
3395 | ||
6fb5f7da | 3396 | /* Each GUI implements these. FIXME: move into RIF. */ |
383e0970 J |
3397 | extern void show_hourglass (struct atimer *); |
3398 | extern void hide_hourglass (void); | |
5f5c8ee5 | 3399 | |
0ff7c0d4 MB |
3400 | /* Returns the background color of IMG, calculating one heuristically if |
3401 | necessary. If non-zero, XIMG is an existing XImage object to use for | |
3402 | the heuristic. */ | |
3403 | ||
3404 | #define IMAGE_BACKGROUND(img, f, ximg) \ | |
3405 | ((img)->background_valid \ | |
3406 | ? (img)->background \ | |
3407 | : image_background (img, f, ximg)) | |
3408 | ||
3409 | /* Returns true if IMG has a `transparent' background, using heuristics | |
3410 | to decide if necessary. If non-zero, MASK is an existing XImage | |
3411 | object to use for the heuristic. */ | |
3412 | ||
3413 | #define IMAGE_BACKGROUND_TRANSPARENT(img, f, mask) \ | |
3414 | ((img)->background_transparent_valid \ | |
3415 | ? (img)->background_transparent \ | |
3416 | : image_background_transparent (img, f, mask)) | |
3417 | ||
4397e334 | 3418 | #endif /* HAVE_WINDOW_SYSTEM */ |
5f5c8ee5 GM |
3419 | |
3420 | ||
3421 | /* Defined in xmenu.c */ | |
3422 | ||
383e0970 | 3423 | int popup_activated (void); |
5f5c8ee5 | 3424 | |
b5e9cbb6 EZ |
3425 | /* Defined in dispnew.c */ |
3426 | ||
383e0970 J |
3427 | extern Lisp_Object buffer_posn_from_coords (struct window *, |
3428 | int *, int *, | |
3429 | struct display_pos *, | |
3430 | Lisp_Object *, | |
3431 | int *, int *, int *, int *); | |
3432 | extern Lisp_Object mode_line_string (struct window *, enum window_part, | |
d311d28c | 3433 | int *, int *, ptrdiff_t *, |
383e0970 J |
3434 | Lisp_Object *, |
3435 | int *, int *, int *, int *); | |
3436 | extern Lisp_Object marginal_area_string (struct window *, enum window_part, | |
d311d28c | 3437 | int *, int *, ptrdiff_t *, |
383e0970 J |
3438 | Lisp_Object *, |
3439 | int *, int *, int *, int *); | |
3440 | extern void redraw_frame (struct frame *); | |
59ea14cd | 3441 | extern bool update_frame (struct frame *, bool, bool); |
d13adf6d | 3442 | extern void update_frame_with_menu (struct frame *, int, int); |
383e0970 | 3443 | extern void bitch_at_user (void); |
bd0443bb | 3444 | extern void adjust_frame_glyphs (struct frame *); |
383e0970 J |
3445 | void free_glyphs (struct frame *); |
3446 | void free_window_matrices (struct window *); | |
3447 | void check_glyph_memory (void); | |
3448 | void mirrored_line_dance (struct glyph_matrix *, int, int, int *, char *); | |
3449 | void clear_glyph_matrix (struct glyph_matrix *); | |
3450 | void clear_current_matrices (struct frame *f); | |
3451 | void clear_desired_matrices (struct frame *); | |
3452 | void shift_glyph_matrix (struct window *, struct glyph_matrix *, | |
3453 | int, int, int); | |
3454 | void rotate_matrix (struct glyph_matrix *, int, int, int); | |
3455 | void increment_matrix_positions (struct glyph_matrix *, | |
d311d28c | 3456 | int, int, ptrdiff_t, ptrdiff_t); |
383e0970 | 3457 | void blank_row (struct window *, struct glyph_row *, int); |
59ea14cd | 3458 | void clear_glyph_matrix_rows (struct glyph_matrix *, int, int); |
383e0970 J |
3459 | void clear_glyph_row (struct glyph_row *); |
3460 | void prepare_desired_row (struct glyph_row *); | |
59ea14cd PE |
3461 | void update_single_window (struct window *, bool); |
3462 | void do_pending_window_change (bool); | |
880e6158 | 3463 | void change_frame_size (struct frame *, int, int, bool, bool, bool, bool); |
383e0970 J |
3464 | void init_display (void); |
3465 | void syms_of_display (void); | |
69a7a14d | 3466 | extern Lisp_Object Qredisplay_dont_pause; |
b5e9cbb6 | 3467 | extern void spec_glyph_lookup_face (struct window *, GLYPH *); |
abe02020 | 3468 | extern void fill_up_frame_row_with_spaces (struct glyph_row *, int); |
ec5d8db7 | 3469 | |
ed8dad6b | 3470 | /* Defined in terminal.c */ |
5f5c8ee5 | 3471 | |
383e0970 J |
3472 | extern void ring_bell (struct frame *); |
3473 | extern void update_begin (struct frame *); | |
3474 | extern void update_end (struct frame *); | |
3475 | extern void set_terminal_window (struct frame *, int); | |
3476 | extern void cursor_to (struct frame *, int, int); | |
3477 | extern void raw_cursor_to (struct frame *, int, int); | |
3478 | extern void clear_to_end (struct frame *); | |
3479 | extern void clear_frame (struct frame *); | |
3480 | extern void clear_end_of_line (struct frame *, int); | |
3481 | extern void write_glyphs (struct frame *, struct glyph *, int); | |
3482 | extern void insert_glyphs (struct frame *, struct glyph *, int); | |
3483 | extern void delete_glyphs (struct frame *, int); | |
3484 | extern void ins_del_lines (struct frame *, int, int); | |
ed8dad6b | 3485 | |
383e0970 | 3486 | extern struct terminal *init_initial_terminal (void); |
ed8dad6b KL |
3487 | |
3488 | ||
3489 | /* Defined in term.c */ | |
3490 | ||
383e0970 | 3491 | extern void tty_turn_off_insert (struct tty_display_info *); |
8ea90aa3 DN |
3492 | extern int string_cost (const char *); |
3493 | extern int per_line_cost (const char *); | |
383e0970 J |
3494 | extern void calculate_costs (struct frame *); |
3495 | extern void produce_glyphs (struct it *); | |
798aef02 | 3496 | extern bool tty_capable_p (struct tty_display_info *, unsigned); |
9b2cd403 | 3497 | extern void set_tty_color_mode (struct tty_display_info *, struct frame *); |
8ea90aa3 | 3498 | extern struct terminal *get_named_tty (const char *); |
383e0970 | 3499 | extern void create_tty_output (struct frame *); |
653d4f43 | 3500 | extern struct terminal *init_tty (const char *, const char *, bool); |
148ae00e | 3501 | extern void tty_append_glyph (struct it *); |
b2fedb04 | 3502 | |
ec5d8db7 AS |
3503 | |
3504 | /* Defined in scroll.c */ | |
5f5c8ee5 | 3505 | |
383e0970 | 3506 | extern int scrolling_max_lines_saved (int, int, int *, int *, int *); |
fbceeba2 PE |
3507 | extern void do_line_insertion_deletion_costs (struct frame *, const char *, |
3508 | const char *, const char *, | |
3509 | const char *, const char *, | |
3510 | const char *, int); | |
383e0970 J |
3511 | void scrolling_1 (struct frame *, int, int, int, int *, int *, int *, |
3512 | int *, int); | |
87485d6f | 3513 | |
e6b3aecd KS |
3514 | /* Defined in frame.c */ |
3515 | ||
3516 | #ifdef HAVE_WINDOW_SYSTEM | |
3517 | ||
3518 | /* Types we might convert a resource string into. */ | |
3519 | enum resource_types | |
3520 | { | |
3521 | RES_TYPE_NUMBER, | |
3522 | RES_TYPE_FLOAT, | |
3523 | RES_TYPE_BOOLEAN, | |
3524 | RES_TYPE_STRING, | |
93318cbd JD |
3525 | RES_TYPE_SYMBOL, |
3526 | RES_TYPE_BOOLEAN_NUMBER | |
e6b3aecd KS |
3527 | }; |
3528 | ||
a6c2ee1b | 3529 | extern Display_Info *check_x_display_info (Lisp_Object); |
383e0970 | 3530 | extern Lisp_Object x_get_arg (Display_Info *, Lisp_Object, |
eec47d6b | 3531 | Lisp_Object, const char *, const char *class, |
383e0970 | 3532 | enum resource_types); |
eec47d6b DN |
3533 | extern Lisp_Object x_frame_get_and_record_arg (struct frame *, Lisp_Object, |
3534 | Lisp_Object, | |
3535 | const char *, const char *, | |
383e0970 J |
3536 | enum resource_types); |
3537 | extern Lisp_Object x_default_parameter (struct frame *, Lisp_Object, | |
3538 | Lisp_Object, Lisp_Object, | |
eec47d6b | 3539 | const char *, const char *, |
383e0970 | 3540 | enum resource_types); |
a6c2ee1b DA |
3541 | extern char *x_get_string_resource (XrmDatabase, const char *, |
3542 | const char *); | |
582ed56c DA |
3543 | |
3544 | #ifndef HAVE_NS /* These both used on W32 and X only. */ | |
3545 | extern bool x_mouse_grabbed (Display_Info *); | |
18da0d8a | 3546 | extern void x_redo_mouse_highlight (Display_Info *); |
582ed56c | 3547 | #endif /* HAVE_NS */ |
e6b3aecd KS |
3548 | |
3549 | #endif /* HAVE_WINDOW_SYSTEM */ | |
3550 | ||
f162bcc3 PE |
3551 | INLINE_HEADER_END |
3552 | ||
5f5c8ee5 | 3553 | #endif /* not DISPEXTERN_H_INCLUDED */ |