Commit | Line | Data |
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6b61353c | 1 | /* Fringe handling (split from xdisp.c). |
0b5538bd | 2 | Copyright (C) 1985, 1986, 1987, 1988, 1993, 1994, 1995, 1997, |
429ab54e | 3 | 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, |
76b6f707 | 4 | 2006, 2007, 2008, 2009 Free Software Foundation, Inc. |
6b61353c KH |
5 | |
6 | This file is part of GNU Emacs. | |
7 | ||
9ec0b715 | 8 | GNU Emacs is free software: you can redistribute it and/or modify |
6b61353c | 9 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
10 | the Free Software Foundation, either version 3 of the License, or |
11 | (at your option) any later version. | |
6b61353c KH |
12 | |
13 | GNU Emacs is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
9ec0b715 | 19 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
6b61353c KH |
20 | |
21 | #include <config.h> | |
22 | #include <stdio.h> | |
d7306fe6 | 23 | #include <setjmp.h> |
6b61353c KH |
24 | |
25 | #include "lisp.h" | |
26 | #include "frame.h" | |
27 | #include "window.h" | |
28 | #include "dispextern.h" | |
29 | #include "buffer.h" | |
30 | #include "blockinput.h" | |
e581a466 | 31 | #include "termhooks.h" |
6b61353c KH |
32 | |
33 | #ifdef HAVE_WINDOW_SYSTEM | |
34 | ||
7a2a85be | 35 | extern Lisp_Object Qfringe; |
6b61353c | 36 | extern Lisp_Object Qtop, Qbottom, Qcenter; |
5797a7a0 | 37 | extern Lisp_Object Qup, Qdown, Qleft, Qright; |
6b61353c KH |
38 | |
39 | /* Non-nil means that newline may flow into the right fringe. */ | |
40 | ||
41 | Lisp_Object Voverflow_newline_into_fringe; | |
42 | ||
7a2a85be KS |
43 | /* List of known fringe bitmap symbols. |
44 | ||
45 | The fringe bitmap number is stored in the `fringe' property on | |
46 | those symbols. Names for the built-in bitmaps are installed by | |
47 | loading fringe.el. | |
48 | */ | |
49 | ||
50 | Lisp_Object Vfringe_bitmaps; | |
6b61353c | 51 | |
7840b332 KS |
52 | /* Fringe bitmaps are represented in three different ways: |
53 | ||
54 | Logical bitmaps are used internally to denote things like | |
55 | 'end-of-buffer', 'left-truncation', 'overlay-arrow', etc. | |
56 | ||
57 | Physical bitmaps specify the visual appearence of the bitmap, | |
58 | e.g. 'bottom-left-angle', 'left-arrow', 'left-triangle', etc. | |
59 | User defined bitmaps are physical bitmaps. | |
60 | ||
61 | Internally, fringe bitmaps for a specific display row are | |
62 | represented as a simple integer that is used as an index | |
63 | into the table of all defined bitmaps. This index is stored | |
64 | in the `fringe' property of the physical bitmap symbol. | |
65 | ||
66 | Logical bitmaps are mapped to physical bitmaps through the | |
67 | buffer-local `fringe-indicator-alist' variable. | |
68 | ||
69 | Each element of this alist is a cons (LOGICAL . PHYSICAL) | |
70 | mapping a logical bitmap to a physical bitmap. | |
71 | PHYSICAL is either a symbol to use in both left and right fringe, | |
72 | or a cons of two symbols (LEFT . RIGHT) denoting different | |
73 | bitmaps to use in left and right fringe. | |
74 | ||
75 | LOGICAL is first looked up in the window's buffer's buffer-local | |
76 | value of the fringe-indicator-alist variable, and if not present, | |
77 | in the global value of fringe-indicator-alist. | |
78 | ||
79 | If LOGICAL is not present in either alist, or the PHYSICAL value | |
80 | found is nil, no bitmap is shown for the logical bitmap. | |
81 | ||
82 | The `left-fringe' and `right-fringe' display properties | |
83 | must specify physical bitmap symbols. | |
84 | */ | |
85 | ||
86 | extern Lisp_Object Qunknown; | |
87 | Lisp_Object Qtruncation, Qcontinuation, Qoverlay_arrow; | |
88 | Lisp_Object Qempty_line, Qtop_bottom; | |
89 | extern Lisp_Object Qbar, Qhbar, Qbox, Qhollow; | |
90 | Lisp_Object Qhollow_small; | |
6b61353c KH |
91 | |
92 | enum fringe_bitmap_align | |
93 | { | |
94 | ALIGN_BITMAP_CENTER = 0, | |
95 | ALIGN_BITMAP_TOP, | |
96 | ALIGN_BITMAP_BOTTOM | |
97 | }; | |
98 | ||
99 | struct fringe_bitmap | |
100 | { | |
101 | unsigned short *bits; | |
102 | unsigned height : 8; | |
103 | unsigned width : 8; | |
104 | unsigned period : 8; | |
105 | unsigned align : 2; | |
106 | unsigned dynamic : 1; | |
107 | }; | |
108 | ||
109 | \f | |
110 | /*********************************************************************** | |
111 | Fringe bitmaps | |
112 | ***********************************************************************/ | |
113 | ||
114 | /* Undefined bitmap. A question mark. */ | |
115 | /* | |
116 | ..xxxx.. | |
117 | .xxxxxx. | |
118 | xx....xx | |
119 | xx....xx | |
120 | ....xx.. | |
121 | ...xx... | |
122 | ...xx... | |
123 | ........ | |
124 | ...xx... | |
125 | ...xx... | |
126 | */ | |
7840b332 | 127 | static unsigned short question_mark_bits[] = { |
6b61353c KH |
128 | 0x3c, 0x7e, 0x7e, 0x0c, 0x18, 0x18, 0x00, 0x18, 0x18}; |
129 | ||
130 | /* An arrow like this: `<-'. */ | |
131 | /* | |
132 | ...xx... | |
133 | ..xx.... | |
134 | .xx..... | |
135 | xxxxxx.. | |
136 | xxxxxx.. | |
137 | .xx..... | |
138 | ..xx.... | |
139 | ...xx... | |
140 | */ | |
141 | static unsigned short left_arrow_bits[] = { | |
142 | 0x18, 0x30, 0x60, 0xfc, 0xfc, 0x60, 0x30, 0x18}; | |
143 | ||
144 | ||
145 | /* Right truncation arrow bitmap `->'. */ | |
146 | /* | |
147 | ...xx... | |
148 | ....xx.. | |
149 | .....xx. | |
150 | ..xxxxxx | |
151 | ..xxxxxx | |
152 | .....xx. | |
153 | ....xx.. | |
154 | ...xx... | |
155 | */ | |
156 | static unsigned short right_arrow_bits[] = { | |
157 | 0x18, 0x0c, 0x06, 0x3f, 0x3f, 0x06, 0x0c, 0x18}; | |
158 | ||
159 | ||
160 | /* Up arrow bitmap. */ | |
161 | /* | |
162 | ...xx... | |
163 | ..xxxx.. | |
164 | .xxxxxx. | |
165 | xxxxxxxx | |
166 | ...xx... | |
167 | ...xx... | |
168 | ...xx... | |
169 | ...xx... | |
170 | */ | |
171 | static unsigned short up_arrow_bits[] = { | |
172 | 0x18, 0x3c, 0x7e, 0xff, 0x18, 0x18, 0x18, 0x18}; | |
173 | ||
174 | ||
175 | /* Down arrow bitmap. */ | |
176 | /* | |
177 | ...xx... | |
178 | ...xx... | |
179 | ...xx... | |
180 | ...xx... | |
181 | xxxxxxxx | |
182 | .xxxxxx. | |
183 | ..xxxx.. | |
184 | ...xx... | |
185 | */ | |
186 | static unsigned short down_arrow_bits[] = { | |
187 | 0x18, 0x18, 0x18, 0x18, 0xff, 0x7e, 0x3c, 0x18}; | |
188 | ||
6b61353c KH |
189 | /* Marker for continuation lines. */ |
190 | /* | |
191 | ..xxxx.. | |
192 | .xxxxx.. | |
193 | xx...... | |
194 | xxx..x.. | |
195 | xxxxxx.. | |
196 | .xxxxx.. | |
197 | ..xxxx.. | |
198 | .xxxxx.. | |
199 | */ | |
7840b332 | 200 | static unsigned short left_curly_arrow_bits[] = { |
6b61353c KH |
201 | 0x3c, 0x7c, 0xc0, 0xe4, 0xfc, 0x7c, 0x3c, 0x7c}; |
202 | ||
7840b332 | 203 | /* Marker for continued lines. */ |
6b61353c | 204 | /* |
7840b332 KS |
205 | ..xxxx.. |
206 | ..xxxxx. | |
207 | ......xx | |
208 | ..x..xxx | |
209 | ..xxxxxx | |
210 | ..xxxxx. | |
211 | ..xxxx.. | |
212 | ..xxxxx. | |
6b61353c | 213 | */ |
7840b332 KS |
214 | static unsigned short right_curly_arrow_bits[] = { |
215 | 0x3c, 0x3e, 0x03, 0x27, 0x3f, 0x3e, 0x3c, 0x3e}; | |
6b61353c | 216 | |
6b61353c KH |
217 | /* Reverse Overlay arrow bitmap. A triangular arrow. */ |
218 | /* | |
219 | ......xx | |
220 | ....xxxx | |
221 | ...xxxxx | |
222 | ..xxxxxx | |
223 | ..xxxxxx | |
224 | ...xxxxx | |
225 | ....xxxx | |
226 | ......xx | |
227 | */ | |
7840b332 | 228 | static unsigned short left_triangle_bits[] = { |
6b61353c | 229 | 0x03, 0x0f, 0x1f, 0x3f, 0x3f, 0x1f, 0x0f, 0x03}; |
7840b332 KS |
230 | |
231 | /* Overlay arrow bitmap. A triangular arrow. */ | |
232 | /* | |
233 | xx...... | |
234 | xxxx.... | |
235 | xxxxx... | |
236 | xxxxxx.. | |
237 | xxxxxx.. | |
238 | xxxxx... | |
239 | xxxx.... | |
240 | xx...... | |
241 | */ | |
242 | static unsigned short right_triangle_bits[] = { | |
243 | 0xc0, 0xf0, 0xf8, 0xfc, 0xfc, 0xf8, 0xf0, 0xc0}; | |
6b61353c KH |
244 | |
245 | /* First line bitmap. An top-left angle. */ | |
246 | /* | |
247 | xxxxxx.. | |
248 | xxxxxx.. | |
249 | xx...... | |
250 | xx...... | |
251 | xx...... | |
252 | xx...... | |
253 | xx...... | |
254 | ........ | |
255 | */ | |
256 | static unsigned short top_left_angle_bits[] = { | |
257 | 0xfc, 0xfc, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0x00}; | |
258 | ||
259 | /* First line bitmap. An right-up angle. */ | |
260 | /* | |
261 | ..xxxxxx | |
262 | ..xxxxxx | |
263 | ......xx | |
264 | ......xx | |
265 | ......xx | |
266 | ......xx | |
267 | ......xx | |
268 | ........ | |
269 | */ | |
270 | static unsigned short top_right_angle_bits[] = { | |
271 | 0x3f, 0x3f, 0x03, 0x03, 0x03, 0x03, 0x03, 0x00}; | |
272 | ||
273 | /* Last line bitmap. An left-down angle. */ | |
274 | /* | |
275 | ........ | |
276 | xx...... | |
277 | xx...... | |
278 | xx...... | |
279 | xx...... | |
280 | xx...... | |
281 | xxxxxx.. | |
282 | xxxxxx.. | |
283 | */ | |
284 | static unsigned short bottom_left_angle_bits[] = { | |
285 | 0x00, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xfc, 0xfc}; | |
286 | ||
287 | /* Last line bitmap. An right-down angle. */ | |
288 | /* | |
289 | ........ | |
290 | ......xx | |
291 | ......xx | |
292 | ......xx | |
293 | ......xx | |
294 | ......xx | |
295 | ..xxxxxx | |
296 | ..xxxxxx | |
297 | */ | |
298 | static unsigned short bottom_right_angle_bits[] = { | |
299 | 0x00, 0x03, 0x03, 0x03, 0x03, 0x03, 0x3f, 0x3f}; | |
300 | ||
301 | /* First/last line bitmap. An left bracket. */ | |
302 | /* | |
303 | xxxxxx.. | |
304 | xxxxxx.. | |
305 | xx...... | |
306 | xx...... | |
307 | xx...... | |
308 | xx...... | |
309 | xx...... | |
310 | xx...... | |
311 | xxxxxx.. | |
312 | xxxxxx.. | |
313 | */ | |
314 | static unsigned short left_bracket_bits[] = { | |
315 | 0xfc, 0xfc, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xfc, 0xfc}; | |
316 | ||
317 | /* First/last line bitmap. An right bracket. */ | |
318 | /* | |
319 | ..xxxxxx | |
320 | ..xxxxxx | |
321 | ......xx | |
322 | ......xx | |
323 | ......xx | |
324 | ......xx | |
325 | ......xx | |
326 | ......xx | |
327 | ..xxxxxx | |
328 | ..xxxxxx | |
329 | */ | |
330 | static unsigned short right_bracket_bits[] = { | |
331 | 0x3f, 0x3f, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x3f, 0x3f}; | |
332 | ||
333 | /* Filled box cursor bitmap. A filled box; max 13 pixels high. */ | |
334 | /* | |
335 | xxxxxxx. | |
336 | xxxxxxx. | |
337 | xxxxxxx. | |
338 | xxxxxxx. | |
339 | xxxxxxx. | |
340 | xxxxxxx. | |
341 | xxxxxxx. | |
342 | xxxxxxx. | |
343 | xxxxxxx. | |
344 | xxxxxxx. | |
345 | xxxxxxx. | |
346 | xxxxxxx. | |
347 | xxxxxxx. | |
348 | */ | |
7840b332 | 349 | static unsigned short filled_rectangle_bits[] = { |
6b61353c KH |
350 | 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe}; |
351 | ||
352 | /* Hollow box cursor bitmap. A hollow box; max 13 pixels high. */ | |
353 | /* | |
354 | xxxxxxx. | |
355 | x.....x. | |
356 | x.....x. | |
357 | x.....x. | |
358 | x.....x. | |
359 | x.....x. | |
360 | x.....x. | |
361 | x.....x. | |
362 | x.....x. | |
363 | x.....x. | |
364 | x.....x. | |
365 | x.....x. | |
366 | xxxxxxx. | |
367 | */ | |
7840b332 | 368 | static unsigned short hollow_rectangle_bits[] = { |
6b61353c KH |
369 | 0xfe, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0xfe}; |
370 | ||
7840b332 KS |
371 | /* Hollow square bitmap. */ |
372 | /* | |
373 | .xxxxxx. | |
374 | .x....x. | |
375 | .x....x. | |
376 | .x....x. | |
377 | .x....x. | |
378 | .xxxxxx. | |
379 | */ | |
380 | static unsigned short hollow_square_bits[] = { | |
381 | 0x7e, 0x42, 0x42, 0x42, 0x42, 0x7e}; | |
382 | ||
383 | /* Filled square bitmap. */ | |
384 | /* | |
385 | .xxxxxx. | |
386 | .xxxxxx. | |
387 | .xxxxxx. | |
388 | .xxxxxx. | |
389 | .xxxxxx. | |
390 | .xxxxxx. | |
391 | */ | |
392 | static unsigned short filled_square_bits[] = { | |
393 | 0x7e, 0x7e, 0x7e, 0x7e, 0x7e, 0x7e}; | |
394 | ||
6b61353c KH |
395 | /* Bar cursor bitmap. A vertical bar; max 13 pixels high. */ |
396 | /* | |
397 | xx...... | |
398 | xx...... | |
399 | xx...... | |
400 | xx...... | |
401 | xx...... | |
402 | xx...... | |
403 | xx...... | |
404 | xx...... | |
405 | xx...... | |
406 | xx...... | |
407 | xx...... | |
408 | xx...... | |
409 | xx...... | |
410 | */ | |
7840b332 | 411 | static unsigned short vertical_bar_bits[] = { |
6b61353c KH |
412 | 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0}; |
413 | ||
68a33afa | 414 | /* HBar cursor bitmap. A horizontal bar; 2 pixels high. */ |
6b61353c KH |
415 | /* |
416 | xxxxxxx. | |
417 | xxxxxxx. | |
418 | */ | |
68a33afa | 419 | static unsigned short horizontal_bar_bits[] = { |
6b61353c KH |
420 | 0xfe, 0xfe}; |
421 | ||
422 | ||
423 | /* Bitmap drawn to indicate lines not displaying text if | |
424 | `indicate-empty-lines' is non-nil. */ | |
425 | /* | |
426 | ........ | |
427 | ..xxxx.. | |
428 | ........ | |
429 | ........ | |
430 | ..xxxx.. | |
431 | ........ | |
432 | */ | |
7840b332 | 433 | static unsigned short empty_line_bits[] = { |
6b61353c KH |
434 | 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, |
435 | 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, | |
436 | 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, | |
437 | 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, | |
438 | 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, | |
439 | 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, | |
440 | 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, | |
441 | 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00}; | |
442 | ||
6b61353c KH |
443 | |
444 | #define BYTES_PER_BITMAP_ROW (sizeof (unsigned short)) | |
445 | #define STANDARD_BITMAP_HEIGHT(bits) (sizeof (bits)/BYTES_PER_BITMAP_ROW) | |
446 | #define FRBITS(bits) bits, STANDARD_BITMAP_HEIGHT (bits) | |
447 | ||
7840b332 KS |
448 | /* NOTE: The order of these bitmaps must match the sequence |
449 | used in fringe.el to define the corresponding symbols. */ | |
450 | ||
451 | struct fringe_bitmap standard_bitmaps[] = | |
6b61353c KH |
452 | { |
453 | { NULL, 0, 0, 0, 0, 0 }, /* NO_FRINGE_BITMAP */ | |
7840b332 | 454 | { FRBITS (question_mark_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, |
6b61353c KH |
455 | { FRBITS (left_arrow_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, |
456 | { FRBITS (right_arrow_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, | |
457 | { FRBITS (up_arrow_bits), 8, 0, ALIGN_BITMAP_TOP, 0 }, | |
458 | { FRBITS (down_arrow_bits), 8, 0, ALIGN_BITMAP_BOTTOM, 0 }, | |
7840b332 KS |
459 | { FRBITS (left_curly_arrow_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, |
460 | { FRBITS (right_curly_arrow_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, | |
461 | { FRBITS (left_triangle_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, | |
462 | { FRBITS (right_triangle_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, | |
6b61353c KH |
463 | { FRBITS (top_left_angle_bits), 8, 0, ALIGN_BITMAP_TOP, 0 }, |
464 | { FRBITS (top_right_angle_bits), 8, 0, ALIGN_BITMAP_TOP, 0 }, | |
465 | { FRBITS (bottom_left_angle_bits), 8, 0, ALIGN_BITMAP_BOTTOM, 0 }, | |
466 | { FRBITS (bottom_right_angle_bits), 8, 0, ALIGN_BITMAP_BOTTOM, 0 }, | |
467 | { FRBITS (left_bracket_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, | |
468 | { FRBITS (right_bracket_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, | |
7840b332 KS |
469 | { FRBITS (filled_rectangle_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, |
470 | { FRBITS (hollow_rectangle_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, | |
471 | { FRBITS (filled_square_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, | |
6b61353c | 472 | { FRBITS (hollow_square_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, |
7840b332 | 473 | { FRBITS (vertical_bar_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, |
68a33afa | 474 | { FRBITS (horizontal_bar_bits), 8, 0, ALIGN_BITMAP_BOTTOM, 0 }, |
7840b332 | 475 | { FRBITS (empty_line_bits), 8, 3, ALIGN_BITMAP_TOP, 0 }, |
6b61353c KH |
476 | }; |
477 | ||
7840b332 KS |
478 | #define NO_FRINGE_BITMAP 0 |
479 | #define UNDEF_FRINGE_BITMAP 1 | |
480 | #define MAX_STANDARD_FRINGE_BITMAPS (sizeof(standard_bitmaps)/sizeof(standard_bitmaps[0])) | |
481 | ||
ad67849e | 482 | static struct fringe_bitmap **fringe_bitmaps; |
49ce2dbd | 483 | static Lisp_Object *fringe_faces; |
ad67849e | 484 | static int max_fringe_bitmaps; |
6b61353c | 485 | |
edfda783 | 486 | int max_used_fringe_bitmap = MAX_STANDARD_FRINGE_BITMAPS; |
6b61353c | 487 | |
4cce0ab7 KS |
488 | |
489 | /* Lookup bitmap number for symbol BITMAP. | |
490 | Return 0 if not a bitmap. */ | |
6b61353c KH |
491 | |
492 | int | |
4cce0ab7 | 493 | lookup_fringe_bitmap (bitmap) |
7a2a85be KS |
494 | Lisp_Object bitmap; |
495 | { | |
496 | int bn; | |
497 | ||
4cce0ab7 | 498 | bitmap = Fget (bitmap, Qfringe); |
7a2a85be KS |
499 | if (!INTEGERP (bitmap)) |
500 | return 0; | |
501 | ||
502 | bn = XINT (bitmap); | |
4cce0ab7 KS |
503 | if (bn > NO_FRINGE_BITMAP |
504 | && bn < max_used_fringe_bitmap | |
505 | && (bn < MAX_STANDARD_FRINGE_BITMAPS | |
506 | || fringe_bitmaps[bn] != NULL)) | |
507 | return bn; | |
508 | ||
509 | return 0; | |
7a2a85be KS |
510 | } |
511 | ||
512 | /* Get fringe bitmap name for bitmap number BN. | |
513 | ||
514 | Found by traversing Vfringe_bitmaps comparing BN to the | |
515 | fringe property for each symbol. | |
516 | ||
517 | Return BN if not found in Vfringe_bitmaps. */ | |
518 | ||
519 | static Lisp_Object | |
520 | get_fringe_bitmap_name (bn) | |
521 | int bn; | |
522 | { | |
523 | Lisp_Object bitmaps; | |
524 | Lisp_Object num; | |
525 | ||
526 | /* Zero means no bitmap -- return nil. */ | |
527 | if (bn <= 0) | |
528 | return Qnil; | |
529 | ||
530 | bitmaps = Vfringe_bitmaps; | |
531 | num = make_number (bn); | |
532 | ||
533 | while (CONSP (bitmaps)) | |
534 | { | |
535 | Lisp_Object bitmap = XCAR (bitmaps); | |
536 | if (EQ (num, Fget (bitmap, Qfringe))) | |
537 | return bitmap; | |
538 | bitmaps = XCDR (bitmaps); | |
539 | } | |
540 | ||
541 | return num; | |
542 | } | |
543 | ||
544 | ||
6b61353c KH |
545 | /* Draw the bitmap WHICH in one of the left or right fringes of |
546 | window W. ROW is the glyph row for which to display the bitmap; it | |
547 | determines the vertical position at which the bitmap has to be | |
548 | drawn. | |
549 | LEFT_P is 1 for left fringe, 0 for right fringe. | |
550 | */ | |
551 | ||
7840b332 | 552 | static void |
6b61353c KH |
553 | draw_fringe_bitmap_1 (w, row, left_p, overlay, which) |
554 | struct window *w; | |
555 | struct glyph_row *row; | |
556 | int left_p, overlay; | |
7840b332 | 557 | int which; |
6b61353c KH |
558 | { |
559 | struct frame *f = XFRAME (WINDOW_FRAME (w)); | |
560 | struct draw_fringe_bitmap_params p; | |
561 | struct fringe_bitmap *fb; | |
562 | int period; | |
563 | int face_id = DEFAULT_FACE_ID; | |
564 | ||
565 | p.cursor_p = 0; | |
566 | p.overlay_p = (overlay & 1) == 1; | |
567 | p.cursor_p = (overlay & 2) == 2; | |
568 | ||
569 | if (which != NO_FRINGE_BITMAP) | |
570 | { | |
571 | } | |
572 | else if (left_p) | |
573 | { | |
574 | which = row->left_fringe_bitmap; | |
575 | face_id = row->left_fringe_face_id; | |
576 | } | |
577 | else | |
578 | { | |
579 | which = row->right_fringe_bitmap; | |
580 | face_id = row->right_fringe_face_id; | |
581 | } | |
582 | ||
583 | if (face_id == DEFAULT_FACE_ID) | |
49ce2dbd KS |
584 | { |
585 | Lisp_Object face; | |
586 | ||
587 | if ((face = fringe_faces[which], NILP (face)) | |
5c538596 | 588 | || (face_id = lookup_derived_face (f, face, FRINGE_FACE_ID, 0), |
308785c1 | 589 | face_id < 0)) |
49ce2dbd KS |
590 | face_id = FRINGE_FACE_ID; |
591 | } | |
6b61353c KH |
592 | |
593 | fb = fringe_bitmaps[which]; | |
594 | if (fb == NULL) | |
595 | fb = &standard_bitmaps[which < MAX_STANDARD_FRINGE_BITMAPS | |
596 | ? which : UNDEF_FRINGE_BITMAP]; | |
597 | ||
598 | period = fb->period; | |
599 | ||
600 | /* Convert row to frame coordinates. */ | |
601 | p.y = WINDOW_TO_FRAME_PIXEL_Y (w, row->y); | |
602 | ||
603 | p.which = which; | |
604 | p.bits = fb->bits; | |
605 | p.wd = fb->width; | |
606 | ||
607 | p.h = fb->height; | |
608 | p.dh = (period > 0 ? (p.y % period) : 0); | |
609 | p.h -= p.dh; | |
610 | /* Clip bitmap if too high. */ | |
611 | if (p.h > row->height) | |
612 | p.h = row->height; | |
613 | ||
614 | p.face = FACE_FROM_ID (f, face_id); | |
615 | ||
616 | if (p.face == NULL) | |
617 | { | |
49ce2dbd KS |
618 | /* This could happen after clearing face cache. |
619 | But it shouldn't happen anymore. ++kfs */ | |
6b61353c KH |
620 | return; |
621 | } | |
622 | ||
623 | PREPARE_FACE_FOR_DISPLAY (f, p.face); | |
624 | ||
625 | /* Clear left fringe if no bitmap to draw or if bitmap doesn't fill | |
626 | the fringe. */ | |
627 | p.bx = -1; | |
628 | if (left_p) | |
629 | { | |
630 | int wd = WINDOW_LEFT_FRINGE_WIDTH (w); | |
631 | int x = window_box_left (w, (WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w) | |
632 | ? LEFT_MARGIN_AREA | |
633 | : TEXT_AREA)); | |
634 | if (p.wd > wd) | |
635 | p.wd = wd; | |
636 | p.x = x - p.wd - (wd - p.wd) / 2; | |
637 | ||
638 | if (p.wd < wd || row->height > p.h) | |
639 | { | |
640 | /* If W has a vertical border to its left, don't draw over it. */ | |
641 | wd -= ((!WINDOW_LEFTMOST_P (w) | |
642 | && !WINDOW_HAS_VERTICAL_SCROLL_BAR (w)) | |
643 | ? 1 : 0); | |
644 | p.bx = x - wd; | |
645 | p.nx = wd; | |
646 | } | |
647 | } | |
648 | else | |
649 | { | |
650 | int x = window_box_right (w, | |
651 | (WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w) | |
652 | ? RIGHT_MARGIN_AREA | |
653 | : TEXT_AREA)); | |
654 | int wd = WINDOW_RIGHT_FRINGE_WIDTH (w); | |
655 | if (p.wd > wd) | |
656 | p.wd = wd; | |
657 | p.x = x + (wd - p.wd) / 2; | |
658 | /* Clear right fringe if no bitmap to draw of if bitmap doesn't fill | |
659 | the fringe. */ | |
660 | if (p.wd < wd || row->height > p.h) | |
661 | { | |
662 | p.bx = x; | |
663 | p.nx = wd; | |
664 | } | |
665 | } | |
666 | ||
667 | if (p.bx >= 0) | |
668 | { | |
669 | int header_line_height = WINDOW_HEADER_LINE_HEIGHT (w); | |
670 | ||
671 | p.by = WINDOW_TO_FRAME_PIXEL_Y (w, max (header_line_height, row->y)); | |
672 | p.ny = row->visible_height; | |
673 | } | |
674 | ||
675 | /* Adjust y to the offset in the row to start drawing the bitmap. */ | |
676 | switch (fb->align) | |
677 | { | |
678 | case ALIGN_BITMAP_CENTER: | |
679 | p.y += (row->height - p.h) / 2; | |
680 | break; | |
681 | case ALIGN_BITMAP_BOTTOM: | |
682 | p.h = fb->height; | |
683 | p.y += (row->visible_height - p.h); | |
684 | break; | |
685 | case ALIGN_BITMAP_TOP: | |
686 | break; | |
687 | } | |
688 | ||
e581a466 | 689 | FRAME_RIF (f)->draw_fringe_bitmap (w, row, &p); |
6b61353c KH |
690 | } |
691 | ||
7840b332 KS |
692 | static int |
693 | get_logical_cursor_bitmap (w, cursor) | |
694 | struct window *w; | |
695 | Lisp_Object cursor; | |
696 | { | |
697 | Lisp_Object cmap, bm = Qnil; | |
698 | ||
699 | if ((cmap = XBUFFER (w->buffer)->fringe_cursor_alist), !NILP (cmap)) | |
700 | { | |
701 | bm = Fassq (cursor, cmap); | |
702 | if (CONSP (bm)) | |
703 | { | |
704 | if ((bm = XCDR (bm)), NILP (bm)) | |
705 | return NO_FRINGE_BITMAP; | |
706 | return lookup_fringe_bitmap (bm); | |
707 | } | |
708 | } | |
709 | if (EQ (cmap, buffer_defaults.fringe_cursor_alist)) | |
710 | return NO_FRINGE_BITMAP; | |
711 | bm = Fassq (cursor, buffer_defaults.fringe_cursor_alist); | |
712 | if (!CONSP (bm) || ((bm = XCDR (bm)), NILP (bm))) | |
713 | return NO_FRINGE_BITMAP; | |
714 | return lookup_fringe_bitmap (bm); | |
715 | } | |
716 | ||
717 | static int | |
718 | get_logical_fringe_bitmap (w, bitmap, right_p, partial_p) | |
719 | struct window *w; | |
720 | Lisp_Object bitmap; | |
721 | int right_p, partial_p; | |
722 | { | |
723 | Lisp_Object cmap, bm1 = Qnil, bm2 = Qnil, bm; | |
724 | int ln1 = 0, ln2 = 0; | |
725 | int ix1 = right_p; | |
726 | int ix2 = ix1 + (partial_p ? 2 : 0); | |
727 | ||
728 | /* Lookup in buffer-local fringe-indicator-alist before global alist. | |
729 | ||
730 | Elements are: | |
731 | BITMAP -- use for all | |
732 | (L R) -- use for left right (whether partial or not) | |
733 | (L R PL PR) -- use for left rigth partial-left partial-right | |
734 | If any value in local binding is not present or t, use global value. | |
735 | ||
736 | If partial, lookup partial bitmap in default value if not found here. | |
737 | If not partial, or no partial spec is present, use non-partial bitmap. */ | |
738 | ||
739 | if ((cmap = XBUFFER (w->buffer)->fringe_indicator_alist), !NILP (cmap)) | |
740 | { | |
741 | bm1 = Fassq (bitmap, cmap); | |
742 | if (CONSP (bm1)) | |
743 | { | |
744 | if ((bm1 = XCDR (bm1)), NILP (bm1)) | |
745 | return NO_FRINGE_BITMAP; | |
746 | if (CONSP (bm1)) | |
747 | { | |
748 | ln1 = XINT (Flength (bm1)); | |
749 | if (partial_p) | |
750 | { | |
751 | if (ln1 > ix2) | |
752 | { | |
753 | bm = Fnth (make_number (ix2), bm1); | |
754 | if (!EQ (bm, Qt)) | |
755 | goto found; | |
756 | } | |
757 | } | |
758 | else | |
759 | { | |
760 | if (ln1 > ix1) | |
761 | { | |
762 | bm = Fnth (make_number (ix1), bm1); | |
763 | if (!EQ (bm, Qt)) | |
764 | goto found; | |
765 | } | |
766 | } | |
767 | } | |
768 | else if ((bm = bm1, !EQ (bm, Qt))) | |
769 | goto found; | |
770 | } | |
771 | } | |
772 | ||
773 | if (!EQ (cmap, buffer_defaults.fringe_indicator_alist) | |
774 | && !NILP (buffer_defaults.fringe_indicator_alist)) | |
775 | { | |
776 | bm2 = Fassq (bitmap, buffer_defaults.fringe_indicator_alist); | |
777 | if (CONSP (bm2)) | |
778 | { | |
779 | if ((bm2 = XCDR (bm2)), !NILP (bm2)) | |
780 | { | |
781 | if (CONSP (bm2)) | |
782 | { | |
783 | ln2 = XINT (Flength (bm2)); | |
784 | if (partial_p) | |
785 | { | |
786 | if (ln2 > ix2) | |
787 | { | |
788 | bm = Fnth (make_number (ix2), bm2); | |
789 | if (!EQ (bm, Qt)) | |
790 | goto found; | |
791 | } | |
792 | } | |
793 | } | |
794 | } | |
795 | } | |
796 | } | |
797 | ||
798 | if (ln1 > ix1) | |
799 | { | |
800 | bm = Fnth (make_number (ix1), bm1); | |
801 | if (!EQ (bm, Qt)) | |
802 | goto found; | |
803 | } | |
804 | ||
805 | if (ln2 > ix1) | |
806 | { | |
807 | bm = Fnth (make_number (ix1), bm2); | |
808 | if (!EQ (bm, Qt)) | |
809 | goto found; | |
810 | return NO_FRINGE_BITMAP; | |
811 | } | |
812 | else if ((bm = bm2, NILP (bm))) | |
813 | return NO_FRINGE_BITMAP; | |
814 | ||
815 | found: | |
816 | return lookup_fringe_bitmap (bm); | |
817 | } | |
818 | ||
819 | ||
6b61353c KH |
820 | void |
821 | draw_fringe_bitmap (w, row, left_p) | |
822 | struct window *w; | |
823 | struct glyph_row *row; | |
824 | int left_p; | |
825 | { | |
826 | int overlay = 0; | |
827 | ||
828 | if (!left_p && row->cursor_in_fringe_p) | |
829 | { | |
7840b332 | 830 | Lisp_Object cursor = Qnil; |
6b61353c KH |
831 | |
832 | switch (w->phys_cursor_type) | |
833 | { | |
834 | case HOLLOW_BOX_CURSOR: | |
7840b332 KS |
835 | if (row->visible_height >= STANDARD_BITMAP_HEIGHT (hollow_rectangle_bits)) |
836 | cursor = Qhollow; | |
6b61353c | 837 | else |
7840b332 | 838 | cursor = Qhollow_small; |
6b61353c KH |
839 | break; |
840 | case FILLED_BOX_CURSOR: | |
7840b332 | 841 | cursor = Qbox; |
6b61353c KH |
842 | break; |
843 | case BAR_CURSOR: | |
7840b332 | 844 | cursor = Qbar; |
6b61353c KH |
845 | break; |
846 | case HBAR_CURSOR: | |
7840b332 | 847 | cursor = Qhbar; |
6b61353c KH |
848 | break; |
849 | case NO_CURSOR: | |
850 | default: | |
851 | w->phys_cursor_on_p = 0; | |
852 | row->cursor_in_fringe_p = 0; | |
853 | break; | |
854 | } | |
7840b332 | 855 | if (!NILP (cursor)) |
6b61353c | 856 | { |
7840b332 KS |
857 | int bm = get_logical_cursor_bitmap (w, cursor); |
858 | if (bm != NO_FRINGE_BITMAP) | |
859 | { | |
860 | draw_fringe_bitmap_1 (w, row, 0, 2, bm); | |
861 | overlay = EQ (cursor, Qbox) ? 3 : 1; | |
862 | } | |
6b61353c KH |
863 | } |
864 | } | |
865 | ||
866 | draw_fringe_bitmap_1 (w, row, left_p, overlay, NO_FRINGE_BITMAP); | |
867 | ||
a8b34fae | 868 | if (left_p && row->overlay_arrow_bitmap != NO_FRINGE_BITMAP) |
7dfa5c49 | 869 | draw_fringe_bitmap_1 (w, row, 1, 1, row->overlay_arrow_bitmap); |
6b61353c KH |
870 | } |
871 | ||
872 | ||
873 | /* Draw fringe bitmaps for glyph row ROW on window W. Call this | |
874 | function with input blocked. */ | |
875 | ||
876 | void | |
877 | draw_row_fringe_bitmaps (w, row) | |
878 | struct window *w; | |
879 | struct glyph_row *row; | |
880 | { | |
881 | xassert (interrupt_input_blocked); | |
882 | ||
883 | /* If row is completely invisible, because of vscrolling, we | |
884 | don't have to draw anything. */ | |
885 | if (row->visible_height <= 0) | |
886 | return; | |
887 | ||
888 | if (WINDOW_LEFT_FRINGE_WIDTH (w) != 0) | |
889 | draw_fringe_bitmap (w, row, 1); | |
890 | ||
891 | if (WINDOW_RIGHT_FRINGE_WIDTH (w) != 0) | |
892 | draw_fringe_bitmap (w, row, 0); | |
893 | } | |
894 | ||
895 | /* Draw the fringes of window W. Only fringes for rows marked for | |
11491cbb | 896 | update in redraw_fringe_bitmaps_p are drawn. |
6b61353c | 897 | |
11491cbb KS |
898 | Return >0 if left or right fringe was redrawn in any way. |
899 | ||
900 | If NO_FRINGE is non-zero, also return >0 if either fringe has zero width. | |
901 | ||
902 | A return value >0 indicates that the vertical line between windows | |
903 | needs update (as it may be drawn in the fringe). | |
904 | */ | |
905 | ||
906 | int | |
907 | draw_window_fringes (w, no_fringe) | |
6b61353c | 908 | struct window *w; |
11491cbb | 909 | int no_fringe; |
6b61353c KH |
910 | { |
911 | struct glyph_row *row; | |
912 | int yb = window_text_bottom_y (w); | |
913 | int nrows = w->current_matrix->nrows; | |
914 | int y = 0, rn; | |
11491cbb | 915 | int updated = 0; |
6b61353c KH |
916 | |
917 | if (w->pseudo_window_p) | |
11491cbb KS |
918 | return 0; |
919 | ||
920 | /* Must draw line if no fringe */ | |
921 | if (no_fringe | |
922 | && (WINDOW_LEFT_FRINGE_WIDTH (w) == 0 | |
923 | || WINDOW_RIGHT_FRINGE_WIDTH (w) == 0)) | |
924 | updated++; | |
6b61353c KH |
925 | |
926 | for (y = 0, rn = 0, row = w->current_matrix->rows; | |
927 | y < yb && rn < nrows; | |
928 | y += row->height, ++row, ++rn) | |
929 | { | |
930 | if (!row->redraw_fringe_bitmaps_p) | |
931 | continue; | |
932 | draw_row_fringe_bitmaps (w, row); | |
933 | row->redraw_fringe_bitmaps_p = 0; | |
11491cbb | 934 | updated++; |
6b61353c | 935 | } |
11491cbb KS |
936 | |
937 | return updated; | |
6b61353c KH |
938 | } |
939 | ||
940 | ||
941 | /* Recalculate the bitmaps to show in the fringes of window W. | |
4dadc129 KS |
942 | Only mark rows with modified bitmaps for update in redraw_fringe_bitmaps_p. |
943 | ||
944 | If KEEP_CURRENT_P is 0, update current_matrix too. */ | |
6b61353c KH |
945 | |
946 | int | |
4dadc129 | 947 | update_window_fringes (w, keep_current_p) |
6b61353c | 948 | struct window *w; |
4dadc129 | 949 | int keep_current_p; |
6b61353c KH |
950 | { |
951 | struct glyph_row *row, *cur = 0; | |
952 | int yb = window_text_bottom_y (w); | |
953 | int rn, nrows = w->current_matrix->nrows; | |
954 | int y; | |
955 | int redraw_p = 0; | |
5797a7a0 KS |
956 | Lisp_Object boundary_top = Qnil, boundary_bot = Qnil; |
957 | Lisp_Object arrow_top = Qnil, arrow_bot = Qnil; | |
958 | Lisp_Object empty_pos; | |
959 | Lisp_Object ind = Qnil; | |
7840b332 KS |
960 | #define MAX_BITMAP_CACHE (8*4) |
961 | int bitmap_cache[MAX_BITMAP_CACHE]; | |
6b61353c KH |
962 | |
963 | if (w->pseudo_window_p) | |
964 | return 0; | |
965 | ||
966 | if (!MINI_WINDOW_P (w) | |
967 | && (ind = XBUFFER (w->buffer)->indicate_buffer_boundaries, !NILP (ind))) | |
968 | { | |
5797a7a0 KS |
969 | if (EQ (ind, Qleft) || EQ (ind, Qright)) |
970 | boundary_top = boundary_bot = arrow_top = arrow_bot = ind; | |
971 | else if (CONSP (ind) && CONSP (XCAR (ind))) | |
972 | { | |
973 | Lisp_Object pos; | |
974 | if (pos = Fassq (Qt, ind), !NILP (pos)) | |
975 | boundary_top = boundary_bot = arrow_top = arrow_bot = XCDR (pos); | |
976 | if (pos = Fassq (Qtop, ind), !NILP (pos)) | |
977 | boundary_top = XCDR (pos); | |
978 | if (pos = Fassq (Qbottom, ind), !NILP (pos)) | |
979 | boundary_bot = XCDR (pos); | |
980 | if (pos = Fassq (Qup, ind), !NILP (pos)) | |
981 | arrow_top = XCDR (pos); | |
982 | if (pos = Fassq (Qdown, ind), !NILP (pos)) | |
983 | arrow_bot = XCDR (pos); | |
984 | } | |
6b61353c | 985 | else |
a208b89c KS |
986 | /* Anything else means boundary on left and no arrows. */ |
987 | boundary_top = boundary_bot = Qleft; | |
5797a7a0 | 988 | } |
6b61353c | 989 | |
5797a7a0 KS |
990 | if (!NILP (ind)) |
991 | { | |
26a5d440 | 992 | int done_top = 0, done_bot = 0; |
6b61353c KH |
993 | |
994 | for (y = 0, rn = 0; | |
995 | y < yb && rn < nrows; | |
996 | y += row->height, ++rn) | |
997 | { | |
998 | unsigned indicate_bob_p, indicate_top_line_p; | |
999 | unsigned indicate_eob_p, indicate_bottom_line_p; | |
1000 | ||
1001 | row = w->desired_matrix->rows + rn; | |
1002 | if (!row->enabled_p) | |
1003 | row = w->current_matrix->rows + rn; | |
1004 | ||
1005 | indicate_bob_p = row->indicate_bob_p; | |
1006 | indicate_top_line_p = row->indicate_top_line_p; | |
1007 | indicate_eob_p = row->indicate_eob_p; | |
1008 | indicate_bottom_line_p = row->indicate_bottom_line_p; | |
1009 | ||
1010 | row->indicate_bob_p = row->indicate_top_line_p = 0; | |
1011 | row->indicate_eob_p = row->indicate_bottom_line_p = 0; | |
1012 | ||
26a5d440 KS |
1013 | if (!row->mode_line_p) |
1014 | { | |
1015 | if (!done_top) | |
1016 | { | |
18e1c39a KS |
1017 | if (MATRIX_ROW_START_CHARPOS (row) <= BUF_BEGV (XBUFFER (w->buffer)) |
1018 | && !MATRIX_ROW_PARTIALLY_VISIBLE_AT_TOP_P (w, row)) | |
26a5d440 KS |
1019 | row->indicate_bob_p = !NILP (boundary_top); |
1020 | else | |
1021 | row->indicate_top_line_p = !NILP (arrow_top); | |
1022 | done_top = 1; | |
1023 | } | |
6b61353c | 1024 | |
26a5d440 KS |
1025 | if (!done_bot) |
1026 | { | |
18e1c39a KS |
1027 | if (MATRIX_ROW_END_CHARPOS (row) >= BUF_ZV (XBUFFER (w->buffer)) |
1028 | && !MATRIX_ROW_PARTIALLY_VISIBLE_AT_BOTTOM_P (w, row)) | |
26a5d440 KS |
1029 | row->indicate_eob_p = !NILP (boundary_bot), done_bot = 1; |
1030 | else if (y + row->height >= yb) | |
1031 | row->indicate_bottom_line_p = !NILP (arrow_bot), done_bot = 1; | |
1032 | } | |
1033 | } | |
6b61353c KH |
1034 | |
1035 | if (indicate_bob_p != row->indicate_bob_p | |
1036 | || indicate_top_line_p != row->indicate_top_line_p | |
1037 | || indicate_eob_p != row->indicate_eob_p | |
1038 | || indicate_bottom_line_p != row->indicate_bottom_line_p) | |
1039 | row->redraw_fringe_bitmaps_p = 1; | |
1040 | } | |
1041 | } | |
1042 | ||
5797a7a0 KS |
1043 | empty_pos = XBUFFER (w->buffer)->indicate_empty_lines; |
1044 | if (!NILP (empty_pos) && !EQ (empty_pos, Qright)) | |
1045 | empty_pos = WINDOW_LEFT_FRINGE_WIDTH (w) == 0 ? Qright : Qleft; | |
6b61353c | 1046 | |
7840b332 KS |
1047 | for (y = 0; y < MAX_BITMAP_CACHE; y++) |
1048 | bitmap_cache[y] = -1; | |
1049 | ||
1050 | #define LEFT_FRINGE(cache, which, partial_p) \ | |
1051 | (bitmap_cache[cache*4+partial_p] >= 0 \ | |
1052 | ? bitmap_cache[cache*4+partial_p] \ | |
1053 | : (bitmap_cache[cache*4+partial_p] = \ | |
1054 | get_logical_fringe_bitmap (w, which, 0, partial_p))) | |
1055 | ||
1056 | #define RIGHT_FRINGE(cache, which, partial_p) \ | |
1057 | (bitmap_cache[cache*4+2+partial_p] >= 0 \ | |
1058 | ? bitmap_cache[cache*4+2+partial_p] \ | |
1059 | : (bitmap_cache[cache*4+2+partial_p] = \ | |
1060 | get_logical_fringe_bitmap (w, which, 1, partial_p))) | |
1061 | ||
1062 | ||
6b61353c KH |
1063 | for (y = 0, rn = 0; |
1064 | y < yb && rn < nrows; | |
1065 | y += row->height, rn++) | |
1066 | { | |
7840b332 | 1067 | int left, right; |
6b61353c KH |
1068 | unsigned left_face_id, right_face_id; |
1069 | ||
1070 | row = w->desired_matrix->rows + rn; | |
1071 | cur = w->current_matrix->rows + rn; | |
1072 | if (!row->enabled_p) | |
1073 | row = cur; | |
1074 | ||
1075 | left_face_id = right_face_id = DEFAULT_FACE_ID; | |
1076 | ||
1077 | /* Decide which bitmap to draw in the left fringe. */ | |
1078 | if (WINDOW_LEFT_FRINGE_WIDTH (w) == 0) | |
1079 | left = NO_FRINGE_BITMAP; | |
1080 | else if (row->left_user_fringe_bitmap != NO_FRINGE_BITMAP) | |
1081 | { | |
1082 | left = row->left_user_fringe_bitmap; | |
1083 | left_face_id = row->left_user_fringe_face_id; | |
1084 | } | |
cfd3af7a | 1085 | else if (row->truncated_on_left_p) |
7840b332 | 1086 | left = LEFT_FRINGE(0, Qtruncation, 0); |
5797a7a0 KS |
1087 | else if (row->indicate_bob_p && EQ (boundary_top, Qleft)) |
1088 | left = ((row->indicate_eob_p && EQ (boundary_bot, Qleft)) | |
7840b332 KS |
1089 | ? LEFT_FRINGE (1, Qtop_bottom, row->ends_at_zv_p) |
1090 | : LEFT_FRINGE (2, Qtop, 0)); | |
5797a7a0 | 1091 | else if (row->indicate_eob_p && EQ (boundary_bot, Qleft)) |
7840b332 | 1092 | left = LEFT_FRINGE (3, Qbottom, row->ends_at_zv_p); |
6b61353c | 1093 | else if (MATRIX_ROW_CONTINUATION_LINE_P (row)) |
7840b332 | 1094 | left = LEFT_FRINGE (4, Qcontinuation, 0); |
5797a7a0 | 1095 | else if (row->indicate_empty_line_p && EQ (empty_pos, Qleft)) |
7840b332 | 1096 | left = LEFT_FRINGE (5, Qempty_line, 0); |
5797a7a0 | 1097 | else if (row->indicate_top_line_p && EQ (arrow_top, Qleft)) |
7840b332 | 1098 | left = LEFT_FRINGE (6, Qup, 0); |
5797a7a0 | 1099 | else if (row->indicate_bottom_line_p && EQ (arrow_bot, Qleft)) |
7840b332 | 1100 | left = LEFT_FRINGE (7, Qdown, 0); |
6b61353c KH |
1101 | else |
1102 | left = NO_FRINGE_BITMAP; | |
1103 | ||
1104 | /* Decide which bitmap to draw in the right fringe. */ | |
1105 | if (WINDOW_RIGHT_FRINGE_WIDTH (w) == 0) | |
1106 | right = NO_FRINGE_BITMAP; | |
1107 | else if (row->right_user_fringe_bitmap != NO_FRINGE_BITMAP) | |
1108 | { | |
1109 | right = row->right_user_fringe_bitmap; | |
1110 | right_face_id = row->right_user_fringe_face_id; | |
1111 | } | |
cfd3af7a | 1112 | else if (row->truncated_on_right_p) |
7840b332 | 1113 | right = RIGHT_FRINGE (0, Qtruncation, 0); |
5797a7a0 KS |
1114 | else if (row->indicate_bob_p && EQ (boundary_top, Qright)) |
1115 | right = ((row->indicate_eob_p && EQ (boundary_bot, Qright)) | |
7840b332 KS |
1116 | ? RIGHT_FRINGE (1, Qtop_bottom, row->ends_at_zv_p) |
1117 | : RIGHT_FRINGE (2, Qtop, 0)); | |
5797a7a0 | 1118 | else if (row->indicate_eob_p && EQ (boundary_bot, Qright)) |
7840b332 | 1119 | right = RIGHT_FRINGE (3, Qbottom, row->ends_at_zv_p); |
6b61353c | 1120 | else if (row->continued_p) |
7840b332 | 1121 | right = RIGHT_FRINGE (4, Qcontinuation, 0); |
5797a7a0 | 1122 | else if (row->indicate_top_line_p && EQ (arrow_top, Qright)) |
7840b332 | 1123 | right = RIGHT_FRINGE (6, Qup, 0); |
5797a7a0 | 1124 | else if (row->indicate_bottom_line_p && EQ (arrow_bot, Qright)) |
7840b332 | 1125 | right = RIGHT_FRINGE (7, Qdown, 0); |
5797a7a0 | 1126 | else if (row->indicate_empty_line_p && EQ (empty_pos, Qright)) |
7840b332 | 1127 | right = RIGHT_FRINGE (5, Qempty_line, 0); |
6b61353c KH |
1128 | else |
1129 | right = NO_FRINGE_BITMAP; | |
1130 | ||
4dadc129 | 1131 | if (row->y != cur->y |
6b61353c | 1132 | || row->visible_height != cur->visible_height |
81544a1d | 1133 | || row->ends_at_zv_p != cur->ends_at_zv_p |
6b61353c KH |
1134 | || left != cur->left_fringe_bitmap |
1135 | || right != cur->right_fringe_bitmap | |
1136 | || left_face_id != cur->left_fringe_face_id | |
1137 | || right_face_id != cur->right_fringe_face_id | |
1138 | || cur->redraw_fringe_bitmaps_p) | |
1139 | { | |
4dadc129 KS |
1140 | redraw_p = row->redraw_fringe_bitmaps_p = 1; |
1141 | if (!keep_current_p) | |
1142 | { | |
1143 | cur->redraw_fringe_bitmaps_p = 1; | |
1144 | cur->left_fringe_bitmap = left; | |
1145 | cur->right_fringe_bitmap = right; | |
1146 | cur->left_fringe_face_id = left_face_id; | |
1147 | cur->right_fringe_face_id = right_face_id; | |
1148 | } | |
6b61353c KH |
1149 | } |
1150 | ||
7dfa5c49 KS |
1151 | if (row->overlay_arrow_bitmap < 0) |
1152 | row->overlay_arrow_bitmap = get_logical_fringe_bitmap (w, Qoverlay_arrow, 0, 0); | |
1153 | ||
a8b34fae | 1154 | if (row->overlay_arrow_bitmap != cur->overlay_arrow_bitmap) |
6b61353c KH |
1155 | { |
1156 | redraw_p = row->redraw_fringe_bitmaps_p = cur->redraw_fringe_bitmaps_p = 1; | |
a8b34fae | 1157 | cur->overlay_arrow_bitmap = row->overlay_arrow_bitmap; |
6b61353c KH |
1158 | } |
1159 | ||
1160 | row->left_fringe_bitmap = left; | |
1161 | row->right_fringe_bitmap = right; | |
1162 | row->left_fringe_face_id = left_face_id; | |
1163 | row->right_fringe_face_id = right_face_id; | |
81544a1d KS |
1164 | |
1165 | if (rn > 0 && row->redraw_fringe_bitmaps_p) | |
1166 | row[-1].redraw_fringe_bitmaps_p = cur[-1].redraw_fringe_bitmaps_p = 1; | |
6b61353c KH |
1167 | } |
1168 | ||
4dadc129 | 1169 | return redraw_p && !keep_current_p; |
6b61353c KH |
1170 | } |
1171 | ||
1172 | ||
1173 | /* Compute actual fringe widths for frame F. | |
1174 | ||
1175 | If REDRAW is 1, redraw F if the fringe settings was actually | |
1176 | modified and F is visible. | |
1177 | ||
1178 | Since the combined left and right fringe must occupy an integral | |
1179 | number of columns, we may need to add some pixels to each fringe. | |
1180 | Typically, we add an equal amount (+/- 1 pixel) to each fringe, | |
1181 | but a negative width value is taken literally (after negating it). | |
1182 | ||
11491cbb | 1183 | We never make the fringes narrower than specified. |
6b61353c KH |
1184 | */ |
1185 | ||
1186 | void | |
1187 | compute_fringe_widths (f, redraw) | |
1188 | struct frame *f; | |
1189 | int redraw; | |
1190 | { | |
1191 | int o_left = FRAME_LEFT_FRINGE_WIDTH (f); | |
1192 | int o_right = FRAME_RIGHT_FRINGE_WIDTH (f); | |
1193 | int o_cols = FRAME_FRINGE_COLS (f); | |
1194 | ||
1195 | Lisp_Object left_fringe = Fassq (Qleft_fringe, f->param_alist); | |
1196 | Lisp_Object right_fringe = Fassq (Qright_fringe, f->param_alist); | |
1197 | int left_fringe_width, right_fringe_width; | |
1198 | ||
1199 | if (!NILP (left_fringe)) | |
1200 | left_fringe = Fcdr (left_fringe); | |
1201 | if (!NILP (right_fringe)) | |
1202 | right_fringe = Fcdr (right_fringe); | |
1203 | ||
1204 | left_fringe_width = ((NILP (left_fringe) || !INTEGERP (left_fringe)) ? 8 : | |
1205 | XINT (left_fringe)); | |
1206 | right_fringe_width = ((NILP (right_fringe) || !INTEGERP (right_fringe)) ? 8 : | |
1207 | XINT (right_fringe)); | |
1208 | ||
1209 | if (left_fringe_width || right_fringe_width) | |
1210 | { | |
1211 | int left_wid = left_fringe_width >= 0 ? left_fringe_width : -left_fringe_width; | |
1212 | int right_wid = right_fringe_width >= 0 ? right_fringe_width : -right_fringe_width; | |
1213 | int conf_wid = left_wid + right_wid; | |
1214 | int font_wid = FRAME_COLUMN_WIDTH (f); | |
1215 | int cols = (left_wid + right_wid + font_wid-1) / font_wid; | |
1216 | int real_wid = cols * font_wid; | |
1217 | if (left_wid && right_wid) | |
1218 | { | |
1219 | if (left_fringe_width < 0) | |
1220 | { | |
1221 | /* Left fringe width is fixed, adjust right fringe if necessary */ | |
1222 | FRAME_LEFT_FRINGE_WIDTH (f) = left_wid; | |
1223 | FRAME_RIGHT_FRINGE_WIDTH (f) = real_wid - left_wid; | |
1224 | } | |
1225 | else if (right_fringe_width < 0) | |
1226 | { | |
1227 | /* Right fringe width is fixed, adjust left fringe if necessary */ | |
1228 | FRAME_LEFT_FRINGE_WIDTH (f) = real_wid - right_wid; | |
1229 | FRAME_RIGHT_FRINGE_WIDTH (f) = right_wid; | |
1230 | } | |
1231 | else | |
1232 | { | |
1233 | /* Adjust both fringes with an equal amount. | |
1234 | Note that we are doing integer arithmetic here, so don't | |
1235 | lose a pixel if the total width is an odd number. */ | |
1236 | int fill = real_wid - conf_wid; | |
1237 | FRAME_LEFT_FRINGE_WIDTH (f) = left_wid + fill/2; | |
1238 | FRAME_RIGHT_FRINGE_WIDTH (f) = right_wid + fill - fill/2; | |
1239 | } | |
1240 | } | |
1241 | else if (left_fringe_width) | |
1242 | { | |
1243 | FRAME_LEFT_FRINGE_WIDTH (f) = real_wid; | |
1244 | FRAME_RIGHT_FRINGE_WIDTH (f) = 0; | |
1245 | } | |
1246 | else | |
1247 | { | |
1248 | FRAME_LEFT_FRINGE_WIDTH (f) = 0; | |
1249 | FRAME_RIGHT_FRINGE_WIDTH (f) = real_wid; | |
1250 | } | |
1251 | FRAME_FRINGE_COLS (f) = cols; | |
1252 | } | |
1253 | else | |
1254 | { | |
1255 | FRAME_LEFT_FRINGE_WIDTH (f) = 0; | |
1256 | FRAME_RIGHT_FRINGE_WIDTH (f) = 0; | |
1257 | FRAME_FRINGE_COLS (f) = 0; | |
1258 | } | |
1259 | ||
1260 | if (redraw && FRAME_VISIBLE_P (f)) | |
1261 | if (o_left != FRAME_LEFT_FRINGE_WIDTH (f) || | |
1262 | o_right != FRAME_RIGHT_FRINGE_WIDTH (f) || | |
1263 | o_cols != FRAME_FRINGE_COLS (f)) | |
1264 | redraw_frame (f); | |
1265 | } | |
1266 | ||
7a2a85be | 1267 | |
4cce0ab7 KS |
1268 | /* Free resources used by a user-defined bitmap. */ |
1269 | ||
c3c69bb6 | 1270 | void |
7a2a85be KS |
1271 | destroy_fringe_bitmap (n) |
1272 | int n; | |
6b61353c | 1273 | { |
6b61353c KH |
1274 | struct fringe_bitmap **fbp; |
1275 | ||
49ce2dbd | 1276 | fringe_faces[n] = Qnil; |
6b61353c KH |
1277 | |
1278 | fbp = &fringe_bitmaps[n]; | |
1279 | if (*fbp && (*fbp)->dynamic) | |
1280 | { | |
e581a466 | 1281 | /* XXX Is SELECTED_FRAME OK here? */ |
04ccca97 | 1282 | struct redisplay_interface *rif = FRAME_RIF (SELECTED_FRAME ()); |
f2be4fd0 | 1283 | if (rif && rif->destroy_fringe_bitmap) |
6b61353c KH |
1284 | rif->destroy_fringe_bitmap (n); |
1285 | xfree (*fbp); | |
1286 | *fbp = NULL; | |
1287 | } | |
1288 | ||
1289 | while (max_used_fringe_bitmap > MAX_STANDARD_FRINGE_BITMAPS | |
1290 | && fringe_bitmaps[max_used_fringe_bitmap - 1] == NULL) | |
1291 | max_used_fringe_bitmap--; | |
7a2a85be KS |
1292 | } |
1293 | ||
6b61353c | 1294 | |
7a2a85be KS |
1295 | DEFUN ("destroy-fringe-bitmap", Fdestroy_fringe_bitmap, Sdestroy_fringe_bitmap, |
1296 | 1, 1, 0, | |
1297 | doc: /* Destroy fringe bitmap BITMAP. | |
1298 | If BITMAP overrides a standard fringe bitmap, the original bitmap is restored. */) | |
1299 | (bitmap) | |
1300 | Lisp_Object bitmap; | |
1301 | { | |
1302 | int n; | |
7a2a85be | 1303 | |
4cce0ab7 KS |
1304 | CHECK_SYMBOL (bitmap); |
1305 | n = lookup_fringe_bitmap (bitmap); | |
1306 | if (!n) | |
7a2a85be KS |
1307 | return Qnil; |
1308 | ||
1309 | destroy_fringe_bitmap (n); | |
2d05deef | 1310 | |
4cce0ab7 | 1311 | if (n >= MAX_STANDARD_FRINGE_BITMAPS) |
7a2a85be | 1312 | { |
4cce0ab7 | 1313 | Vfringe_bitmaps = Fdelq (bitmap, Vfringe_bitmaps); |
7a2a85be | 1314 | /* It would be better to remove the fringe property. */ |
4cce0ab7 | 1315 | Fput (bitmap, Qfringe, Qnil); |
7a2a85be | 1316 | } |
4cce0ab7 | 1317 | |
6b61353c KH |
1318 | return Qnil; |
1319 | } | |
1320 | ||
1321 | ||
1322 | /* Initialize bitmap bit. | |
1323 | ||
1324 | On X, we bit-swap the built-in bitmaps and reduce bitmap | |
1325 | from short to char array if width is <= 8 bits. | |
1326 | ||
1327 | On MAC with big-endian CPU, we need to byte-swap each short. | |
1328 | ||
1329 | On W32 and MAC (little endian), there's no need to do this. | |
1330 | */ | |
1331 | ||
2e4e5023 | 1332 | #if defined (HAVE_X_WINDOWS) |
91433552 | 1333 | static const unsigned char swap_nibble[16] = { |
2e4e5023 GM |
1334 | 0x0, 0x8, 0x4, 0xc, /* 0000 1000 0100 1100 */ |
1335 | 0x2, 0xa, 0x6, 0xe, /* 0010 1010 0110 1110 */ | |
1336 | 0x1, 0x9, 0x5, 0xd, /* 0001 1001 0101 1101 */ | |
1337 | 0x3, 0xb, 0x7, 0xf}; /* 0011 1011 0111 1111 */ | |
1338 | #endif /* HAVE_X_WINDOWS */ | |
1339 | ||
6b61353c KH |
1340 | void |
1341 | init_fringe_bitmap (which, fb, once_p) | |
7840b332 | 1342 | int which; |
6b61353c KH |
1343 | struct fringe_bitmap *fb; |
1344 | int once_p; | |
1345 | { | |
1346 | if (once_p || fb->dynamic) | |
1347 | { | |
1348 | #if defined (HAVE_X_WINDOWS) | |
6b61353c KH |
1349 | unsigned short *bits = fb->bits; |
1350 | int j; | |
1351 | ||
1352 | if (fb->width <= 8) | |
1353 | { | |
1354 | unsigned char *cbits = (unsigned char *)fb->bits; | |
1355 | for (j = 0; j < fb->height; j++) | |
1356 | { | |
1357 | unsigned short b = *bits++; | |
1358 | unsigned char c; | |
1359 | c = (unsigned char)((swap_nibble[b & 0xf] << 4) | |
1360 | | (swap_nibble[(b>>4) & 0xf])); | |
1361 | *cbits++ = (c >> (8 - fb->width)); | |
1362 | } | |
1363 | } | |
1364 | else | |
1365 | { | |
1366 | for (j = 0; j < fb->height; j++) | |
1367 | { | |
1368 | unsigned short b = *bits; | |
1369 | b = (unsigned short)((swap_nibble[b & 0xf] << 12) | |
1370 | | (swap_nibble[(b>>4) & 0xf] << 8) | |
1371 | | (swap_nibble[(b>>8) & 0xf] << 4) | |
1372 | | (swap_nibble[(b>>12) & 0xf])); | |
4e8231f3 YM |
1373 | b >>= (16 - fb->width); |
1374 | #ifdef WORDS_BIG_ENDIAN | |
1375 | b = ((b >> 8) | (b << 8)); | |
1376 | #endif | |
1377 | *bits++ = b; | |
6b61353c KH |
1378 | } |
1379 | } | |
1380 | #endif /* HAVE_X_WINDOWS */ | |
1381 | ||
6b61353c KH |
1382 | } |
1383 | ||
1384 | if (!once_p) | |
1385 | { | |
e581a466 | 1386 | /* XXX Is SELECTED_FRAME OK here? */ |
04ccca97 | 1387 | struct redisplay_interface *rif = FRAME_RIF (SELECTED_FRAME ()); |
a284b538 | 1388 | |
7a2a85be | 1389 | destroy_fringe_bitmap (which); |
6b61353c | 1390 | |
f2be4fd0 | 1391 | if (rif && rif->define_fringe_bitmap) |
6b61353c KH |
1392 | rif->define_fringe_bitmap (which, fb->bits, fb->height, fb->width); |
1393 | ||
1394 | fringe_bitmaps[which] = fb; | |
1395 | if (which >= max_used_fringe_bitmap) | |
1396 | max_used_fringe_bitmap = which + 1; | |
1397 | } | |
1398 | } | |
1399 | ||
1400 | ||
1401 | DEFUN ("define-fringe-bitmap", Fdefine_fringe_bitmap, Sdefine_fringe_bitmap, | |
7a2a85be KS |
1402 | 2, 5, 0, |
1403 | doc: /* Define fringe bitmap BITMAP from BITS of size HEIGHT x WIDTH. | |
2faacff7 | 1404 | BITMAP is a symbol identifying the new fringe bitmap. |
6b61353c KH |
1405 | BITS is either a string or a vector of integers. |
1406 | HEIGHT is height of bitmap. If HEIGHT is nil, use length of BITS. | |
1407 | WIDTH must be an integer between 1 and 16, or nil which defaults to 8. | |
7a2a85be | 1408 | Optional fifth arg ALIGN may be one of `top', `center', or `bottom', |
6b61353c | 1409 | indicating the positioning of the bitmap relative to the rows where it |
6b72791f | 1410 | is used; the default is to center the bitmap. Fifth arg may also be a |
6b61353c KH |
1411 | list (ALIGN PERIODIC) where PERIODIC non-nil specifies that the bitmap |
1412 | should be repeated. | |
7a2a85be KS |
1413 | If BITMAP already exists, the existing definition is replaced. */) |
1414 | (bitmap, bits, height, width, align) | |
1415 | Lisp_Object bitmap, bits, height, width, align; | |
6b61353c | 1416 | { |
6b61353c KH |
1417 | int n, h, i, j; |
1418 | unsigned short *b; | |
1419 | struct fringe_bitmap fb, *xfb; | |
1420 | int fill1 = 0, fill2 = 0; | |
7a2a85be | 1421 | |
4cce0ab7 | 1422 | CHECK_SYMBOL (bitmap); |
6b61353c | 1423 | |
11e04b2d KS |
1424 | if (STRINGP (bits)) |
1425 | h = SCHARS (bits); | |
1426 | else if (VECTORP (bits)) | |
1427 | h = XVECTOR (bits)->size; | |
1428 | else | |
7fee0b51 | 1429 | wrong_type_argument (Qsequencep, bits); |
6b61353c KH |
1430 | |
1431 | if (NILP (height)) | |
11e04b2d | 1432 | fb.height = h; |
6b61353c KH |
1433 | else |
1434 | { | |
1435 | CHECK_NUMBER (height); | |
1436 | fb.height = min (XINT (height), 255); | |
11e04b2d | 1437 | if (fb.height > h) |
6b61353c | 1438 | { |
6b61353c KH |
1439 | fill1 = (fb.height - h) / 2; |
1440 | fill2 = fb.height - h - fill1; | |
1441 | } | |
1442 | } | |
1443 | ||
1444 | if (NILP (width)) | |
1445 | fb.width = 8; | |
1446 | else | |
1447 | { | |
1448 | CHECK_NUMBER (width); | |
1449 | fb.width = min (XINT (width), 255); | |
1450 | } | |
1451 | ||
1452 | fb.period = 0; | |
1453 | fb.align = ALIGN_BITMAP_CENTER; | |
1454 | ||
1455 | if (CONSP (align)) | |
1456 | { | |
1457 | Lisp_Object period = XCDR (align); | |
1458 | if (CONSP (period)) | |
1459 | { | |
1460 | period = XCAR (period); | |
1461 | if (!NILP (period)) | |
1462 | { | |
1463 | fb.period = fb.height; | |
1464 | fb.height = 255; | |
1465 | } | |
1466 | } | |
1467 | align = XCAR (align); | |
1468 | } | |
1469 | if (EQ (align, Qtop)) | |
1470 | fb.align = ALIGN_BITMAP_TOP; | |
1471 | else if (EQ (align, Qbottom)) | |
1472 | fb.align = ALIGN_BITMAP_BOTTOM; | |
1473 | else if (!NILP (align) && !EQ (align, Qcenter)) | |
1474 | error ("Bad align argument"); | |
1475 | ||
ad67849e | 1476 | n = lookup_fringe_bitmap (bitmap); |
4cce0ab7 | 1477 | if (!n) |
6b61353c | 1478 | { |
ad67849e | 1479 | if (max_used_fringe_bitmap < max_fringe_bitmaps) |
6b61353c KH |
1480 | n = max_used_fringe_bitmap++; |
1481 | else | |
1482 | { | |
1483 | for (n = MAX_STANDARD_FRINGE_BITMAPS; | |
ad67849e | 1484 | n < max_fringe_bitmaps; |
6b61353c KH |
1485 | n++) |
1486 | if (fringe_bitmaps[n] == NULL) | |
1487 | break; | |
ad67849e KS |
1488 | |
1489 | if (n == max_fringe_bitmaps) | |
1490 | { | |
1491 | if ((max_fringe_bitmaps + 20) > MAX_FRINGE_BITMAPS) | |
1492 | error ("No free fringe bitmap slots"); | |
1493 | ||
1494 | i = max_fringe_bitmaps; | |
1495 | max_fringe_bitmaps += 20; | |
1496 | fringe_bitmaps | |
1497 | = ((struct fringe_bitmap **) | |
1498 | xrealloc (fringe_bitmaps, max_fringe_bitmaps * sizeof (struct fringe_bitmap *))); | |
1499 | fringe_faces | |
50af5100 | 1500 | = (Lisp_Object *) xrealloc (fringe_faces, max_fringe_bitmaps * sizeof (Lisp_Object)); |
ad67849e KS |
1501 | |
1502 | for (; i < max_fringe_bitmaps; i++) | |
1503 | { | |
1504 | fringe_bitmaps[i] = NULL; | |
49ce2dbd | 1505 | fringe_faces[i] = Qnil; |
ad67849e KS |
1506 | } |
1507 | } | |
6b61353c | 1508 | } |
7a2a85be | 1509 | |
4cce0ab7 KS |
1510 | Vfringe_bitmaps = Fcons (bitmap, Vfringe_bitmaps); |
1511 | Fput (bitmap, Qfringe, make_number (n)); | |
6b61353c KH |
1512 | } |
1513 | ||
1514 | fb.dynamic = 1; | |
1515 | ||
1516 | xfb = (struct fringe_bitmap *) xmalloc (sizeof fb | |
1517 | + fb.height * BYTES_PER_BITMAP_ROW); | |
1518 | fb.bits = b = (unsigned short *) (xfb + 1); | |
1519 | bzero (b, fb.height); | |
1520 | ||
1521 | j = 0; | |
1522 | while (j < fb.height) | |
1523 | { | |
1524 | for (i = 0; i < fill1 && j < fb.height; i++) | |
1525 | b[j++] = 0; | |
1526 | for (i = 0; i < h && j < fb.height; i++) | |
1527 | { | |
1528 | Lisp_Object elt = Faref (bits, make_number (i)); | |
1529 | b[j++] = NUMBERP (elt) ? XINT (elt) : 0; | |
1530 | } | |
1531 | for (i = 0; i < fill2 && j < fb.height; i++) | |
1532 | b[j++] = 0; | |
1533 | } | |
1534 | ||
1535 | *xfb = fb; | |
1536 | ||
1537 | init_fringe_bitmap (n, xfb, 0); | |
1538 | ||
4cce0ab7 | 1539 | return bitmap; |
6b61353c KH |
1540 | } |
1541 | ||
1542 | DEFUN ("set-fringe-bitmap-face", Fset_fringe_bitmap_face, Sset_fringe_bitmap_face, | |
1543 | 1, 2, 0, | |
7a2a85be | 1544 | doc: /* Set face for fringe bitmap BITMAP to FACE. |
6b61353c | 1545 | If FACE is nil, reset face to default fringe face. */) |
7a2a85be KS |
1546 | (bitmap, face) |
1547 | Lisp_Object bitmap, face; | |
6b61353c | 1548 | { |
4cce0ab7 | 1549 | int n; |
6b61353c KH |
1550 | int face_id; |
1551 | ||
4cce0ab7 KS |
1552 | CHECK_SYMBOL (bitmap); |
1553 | n = lookup_fringe_bitmap (bitmap); | |
1554 | if (!n) | |
7a2a85be | 1555 | error ("Undefined fringe bitmap"); |
6b61353c KH |
1556 | |
1557 | if (!NILP (face)) | |
1558 | { | |
308785c1 | 1559 | face_id = lookup_derived_face (SELECTED_FRAME (), face, |
5c538596 | 1560 | FRINGE_FACE_ID, 1); |
6b61353c KH |
1561 | if (face_id < 0) |
1562 | error ("No such face"); | |
1563 | } | |
6b61353c | 1564 | |
49ce2dbd | 1565 | fringe_faces[n] = face; |
6b61353c KH |
1566 | |
1567 | return Qnil; | |
1568 | } | |
1569 | ||
1570 | DEFUN ("fringe-bitmaps-at-pos", Ffringe_bitmaps_at_pos, Sfringe_bitmaps_at_pos, | |
1571 | 0, 2, 0, | |
1572 | doc: /* Return fringe bitmaps of row containing position POS in window WINDOW. | |
1573 | If WINDOW is nil, use selected window. If POS is nil, use value of point | |
d3848fe9 KS |
1574 | in that window. Return value is a list (LEFT RIGHT OV), where LEFT |
1575 | is the symbol for the bitmap in the left fringe (or nil if no bitmap), | |
1576 | RIGHT is similar for the right fringe, and OV is non-nil if there is an | |
1577 | overlay arrow in the left fringe. | |
5797a7a0 | 1578 | Return nil if POS is not visible in WINDOW. */) |
6b61353c KH |
1579 | (pos, window) |
1580 | Lisp_Object pos, window; | |
1581 | { | |
1582 | struct window *w; | |
6b61353c KH |
1583 | struct glyph_row *row; |
1584 | int textpos; | |
1585 | ||
1586 | if (NILP (window)) | |
1587 | window = selected_window; | |
1588 | CHECK_WINDOW (window); | |
1589 | w = XWINDOW (window); | |
1590 | ||
1591 | if (!NILP (pos)) | |
1592 | { | |
1593 | CHECK_NUMBER_COERCE_MARKER (pos); | |
1594 | textpos = XINT (pos); | |
1595 | } | |
1596 | else if (w == XWINDOW (selected_window)) | |
1597 | textpos = PT; | |
1598 | else | |
1599 | textpos = XMARKER (w->pointm)->charpos; | |
1600 | ||
1601 | row = MATRIX_FIRST_TEXT_ROW (w->current_matrix); | |
1602 | row = row_containing_pos (w, textpos, row, NULL, 0); | |
1603 | if (row) | |
d3848fe9 KS |
1604 | return list3 (get_fringe_bitmap_name (row->left_fringe_bitmap), |
1605 | get_fringe_bitmap_name (row->right_fringe_bitmap), | |
a8b34fae KS |
1606 | (row->overlay_arrow_bitmap == 0 ? Qnil |
1607 | : row->overlay_arrow_bitmap < 0 ? Qt | |
1608 | : get_fringe_bitmap_name (row->overlay_arrow_bitmap))); | |
6b61353c KH |
1609 | else |
1610 | return Qnil; | |
1611 | } | |
1612 | ||
1613 | ||
1614 | /*********************************************************************** | |
1615 | Initialization | |
1616 | ***********************************************************************/ | |
1617 | ||
1618 | void | |
1619 | syms_of_fringe () | |
1620 | { | |
d67b4f80 | 1621 | Qtruncation = intern_c_string ("truncation"); |
7840b332 | 1622 | staticpro (&Qtruncation); |
d67b4f80 | 1623 | Qcontinuation = intern_c_string ("continuation"); |
7840b332 | 1624 | staticpro (&Qcontinuation); |
d67b4f80 | 1625 | Qoverlay_arrow = intern_c_string ("overlay-arrow"); |
7840b332 | 1626 | staticpro (&Qoverlay_arrow); |
d67b4f80 | 1627 | Qempty_line = intern_c_string ("empty-line"); |
7840b332 | 1628 | staticpro (&Qempty_line); |
d67b4f80 | 1629 | Qtop_bottom = intern_c_string ("top-bottom"); |
7840b332 | 1630 | staticpro (&Qtop_bottom); |
d67b4f80 | 1631 | Qhollow_small = intern_c_string ("hollow-small"); |
7840b332 KS |
1632 | staticpro (&Qhollow_small); |
1633 | ||
6b61353c KH |
1634 | defsubr (&Sdestroy_fringe_bitmap); |
1635 | defsubr (&Sdefine_fringe_bitmap); | |
1636 | defsubr (&Sfringe_bitmaps_at_pos); | |
1637 | defsubr (&Sset_fringe_bitmap_face); | |
1638 | ||
1639 | DEFVAR_LISP ("overflow-newline-into-fringe", &Voverflow_newline_into_fringe, | |
1640 | doc: /* *Non-nil means that newline may flow into the right fringe. | |
1641 | This means that display lines which are exactly as wide as the window | |
1642 | (not counting the final newline) will only occupy one screen line, by | |
1643 | showing (or hiding) the final newline in the right fringe; when point | |
1644 | is at the final newline, the cursor is shown in the right fringe. | |
1645 | If nil, also continue lines which are exactly as wide as the window. */); | |
1646 | Voverflow_newline_into_fringe = Qt; | |
1647 | ||
7a2a85be | 1648 | DEFVAR_LISP ("fringe-bitmaps", &Vfringe_bitmaps, |
a4b7b036 | 1649 | doc: /* List of fringe bitmap symbols. */); |
7a2a85be | 1650 | Vfringe_bitmaps = Qnil; |
6b61353c KH |
1651 | } |
1652 | ||
49ce2dbd KS |
1653 | /* Garbage collection hook */ |
1654 | ||
1655 | void | |
1656 | mark_fringe_data () | |
1657 | { | |
1658 | int i; | |
1659 | ||
1660 | for (i = 0; i < max_fringe_bitmaps; i++) | |
1661 | if (!NILP (fringe_faces[i])) | |
1662 | mark_object (fringe_faces[i]); | |
1663 | } | |
1664 | ||
6b61353c KH |
1665 | /* Initialize this module when Emacs starts. */ |
1666 | ||
1667 | void | |
1668 | init_fringe_once () | |
1669 | { | |
7840b332 | 1670 | int bt; |
6b61353c KH |
1671 | |
1672 | for (bt = NO_FRINGE_BITMAP + 1; bt < MAX_STANDARD_FRINGE_BITMAPS; bt++) | |
1673 | init_fringe_bitmap(bt, &standard_bitmaps[bt], 1); | |
1674 | } | |
1675 | ||
1676 | void | |
1677 | init_fringe () | |
1678 | { | |
1679 | int i; | |
1680 | ||
ad67849e KS |
1681 | max_fringe_bitmaps = MAX_STANDARD_FRINGE_BITMAPS + 20; |
1682 | ||
1683 | fringe_bitmaps | |
1684 | = (struct fringe_bitmap **) xmalloc (max_fringe_bitmaps * sizeof (struct fringe_bitmap *)); | |
1685 | fringe_faces | |
50af5100 | 1686 | = (Lisp_Object *) xmalloc (max_fringe_bitmaps * sizeof (Lisp_Object)); |
ad67849e KS |
1687 | |
1688 | for (i = 0; i < max_fringe_bitmaps; i++) | |
1689 | { | |
1690 | fringe_bitmaps[i] = NULL; | |
49ce2dbd | 1691 | fringe_faces[i] = Qnil; |
ad67849e | 1692 | } |
6b61353c KH |
1693 | } |
1694 | ||
9e2a2647 | 1695 | #ifdef HAVE_NTGUI |
6b61353c KH |
1696 | |
1697 | void | |
9e2a2647 | 1698 | w32_init_fringe (struct redisplay_interface *rif) |
6b61353c | 1699 | { |
7840b332 | 1700 | int bt; |
6b61353c | 1701 | |
f2be4fd0 KS |
1702 | if (!rif) |
1703 | return; | |
1704 | ||
6b61353c KH |
1705 | for (bt = NO_FRINGE_BITMAP + 1; bt < MAX_STANDARD_FRINGE_BITMAPS; bt++) |
1706 | { | |
1707 | struct fringe_bitmap *fb = &standard_bitmaps[bt]; | |
1708 | rif->define_fringe_bitmap (bt, fb->bits, fb->height, fb->width); | |
1709 | } | |
1710 | } | |
1711 | ||
1712 | void | |
1713 | w32_reset_fringes () | |
1714 | { | |
1715 | /* Destroy row bitmaps. */ | |
1716 | int bt; | |
5c217767 | 1717 | struct redisplay_interface *rif = FRAME_RIF (SELECTED_FRAME ()); |
6b61353c | 1718 | |
f2be4fd0 KS |
1719 | if (!rif) |
1720 | return; | |
1721 | ||
6b61353c KH |
1722 | for (bt = NO_FRINGE_BITMAP + 1; bt < max_used_fringe_bitmap; bt++) |
1723 | rif->destroy_fringe_bitmap (bt); | |
1724 | } | |
1725 | ||
1726 | #endif /* HAVE_NTGUI */ | |
1727 | ||
1728 | #endif /* HAVE_WINDOW_SYSTEM */ | |
1729 | ||
1730 | /* arch-tag: 04596920-43eb-473d-b319-82712338162d | |
1731 | (do not change this comment) */ |