Commit | Line | Data |
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2d05deef KS |
1 | /* Fringe handling (split from xdisp.c). |
2 | Copyright (C) 1985,86,87,88,93,94,95,97,98,99,2000,01,02,03,04 | |
3 | Free Software Foundation, Inc. | |
4 | ||
5 | This file is part of GNU Emacs. | |
6 | ||
7 | GNU Emacs is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2, or (at your option) | |
10 | any later version. | |
11 | ||
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU Emacs; see the file COPYING. If not, write to | |
19 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
20 | Boston, MA 02111-1307, USA. */ | |
21 | ||
22 | #include <config.h> | |
23 | #include <stdio.h> | |
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" |
2d05deef KS |
32 | |
33 | #ifdef HAVE_WINDOW_SYSTEM | |
34 | ||
7a2a85be | 35 | extern Lisp_Object Qfringe; |
2d05deef | 36 | extern Lisp_Object Qtop, Qbottom, Qcenter; |
5797a7a0 | 37 | extern Lisp_Object Qup, Qdown, Qleft, Qright; |
2d05deef KS |
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; | |
2d05deef KS |
51 | |
52 | enum fringe_bitmap_type | |
53 | { | |
54 | NO_FRINGE_BITMAP = 0, | |
55 | UNDEF_FRINGE_BITMAP, | |
56 | LEFT_TRUNCATION_BITMAP, | |
57 | RIGHT_TRUNCATION_BITMAP, | |
58 | UP_ARROW_BITMAP, | |
59 | DOWN_ARROW_BITMAP, | |
60 | CONTINUED_LINE_BITMAP, | |
61 | CONTINUATION_LINE_BITMAP, | |
62 | OVERLAY_ARROW_BITMAP, | |
63 | TOP_LEFT_ANGLE_BITMAP, | |
64 | TOP_RIGHT_ANGLE_BITMAP, | |
65 | BOTTOM_LEFT_ANGLE_BITMAP, | |
66 | BOTTOM_RIGHT_ANGLE_BITMAP, | |
67 | LEFT_BRACKET_BITMAP, | |
68 | RIGHT_BRACKET_BITMAP, | |
69 | FILLED_BOX_CURSOR_BITMAP, | |
70 | HOLLOW_BOX_CURSOR_BITMAP, | |
71 | HOLLOW_SQUARE_BITMAP, | |
72 | BAR_CURSOR_BITMAP, | |
73 | HBAR_CURSOR_BITMAP, | |
74 | ZV_LINE_BITMAP, | |
75 | MAX_STANDARD_FRINGE_BITMAPS | |
76 | }; | |
77 | ||
78 | enum fringe_bitmap_align | |
79 | { | |
80 | ALIGN_BITMAP_CENTER = 0, | |
81 | ALIGN_BITMAP_TOP, | |
82 | ALIGN_BITMAP_BOTTOM | |
83 | }; | |
84 | ||
85 | struct fringe_bitmap | |
86 | { | |
0881a0fd | 87 | unsigned short *bits; |
2d05deef KS |
88 | unsigned height : 8; |
89 | unsigned width : 8; | |
90 | unsigned period : 8; | |
91 | unsigned align : 2; | |
92 | unsigned dynamic : 1; | |
93 | }; | |
94 | ||
95 | \f | |
96 | /*********************************************************************** | |
97 | Fringe bitmaps | |
98 | ***********************************************************************/ | |
99 | ||
100 | /* Undefined bitmap. A question mark. */ | |
101 | /* | |
102 | ..xxxx.. | |
103 | .xxxxxx. | |
104 | xx....xx | |
105 | xx....xx | |
106 | ....xx.. | |
107 | ...xx... | |
108 | ...xx... | |
109 | ........ | |
110 | ...xx... | |
111 | ...xx... | |
112 | */ | |
0881a0fd | 113 | static unsigned short unknown_bits[] = { |
2d05deef KS |
114 | 0x3c, 0x7e, 0x7e, 0x0c, 0x18, 0x18, 0x00, 0x18, 0x18}; |
115 | ||
116 | /* An arrow like this: `<-'. */ | |
117 | /* | |
118 | ...xx... | |
119 | ..xx.... | |
120 | .xx..... | |
121 | xxxxxx.. | |
122 | xxxxxx.. | |
123 | .xx..... | |
124 | ..xx.... | |
125 | ...xx... | |
126 | */ | |
0881a0fd | 127 | static unsigned short left_arrow_bits[] = { |
2d05deef KS |
128 | 0x18, 0x30, 0x60, 0xfc, 0xfc, 0x60, 0x30, 0x18}; |
129 | ||
130 | ||
131 | /* Right truncation arrow bitmap `->'. */ | |
132 | /* | |
133 | ...xx... | |
134 | ....xx.. | |
135 | .....xx. | |
136 | ..xxxxxx | |
137 | ..xxxxxx | |
138 | .....xx. | |
139 | ....xx.. | |
140 | ...xx... | |
141 | */ | |
0881a0fd | 142 | static unsigned short right_arrow_bits[] = { |
2d05deef KS |
143 | 0x18, 0x0c, 0x06, 0x3f, 0x3f, 0x06, 0x0c, 0x18}; |
144 | ||
145 | ||
146 | /* Up arrow bitmap. */ | |
147 | /* | |
148 | ...xx... | |
149 | ..xxxx.. | |
150 | .xxxxxx. | |
151 | xxxxxxxx | |
152 | ...xx... | |
153 | ...xx... | |
154 | ...xx... | |
155 | ...xx... | |
156 | */ | |
0881a0fd | 157 | static unsigned short up_arrow_bits[] = { |
2d05deef KS |
158 | 0x18, 0x3c, 0x7e, 0xff, 0x18, 0x18, 0x18, 0x18}; |
159 | ||
160 | ||
161 | /* Down arrow bitmap. */ | |
162 | /* | |
163 | ...xx... | |
164 | ...xx... | |
165 | ...xx... | |
166 | ...xx... | |
167 | xxxxxxxx | |
168 | .xxxxxx. | |
169 | ..xxxx.. | |
170 | ...xx... | |
171 | */ | |
0881a0fd | 172 | static unsigned short down_arrow_bits[] = { |
2d05deef KS |
173 | 0x18, 0x18, 0x18, 0x18, 0xff, 0x7e, 0x3c, 0x18}; |
174 | ||
175 | /* Marker for continued lines. */ | |
176 | /* | |
177 | ..xxxx.. | |
178 | ..xxxxx. | |
179 | ......xx | |
180 | ..x..xxx | |
181 | ..xxxxxx | |
182 | ..xxxxx. | |
183 | ..xxxx.. | |
184 | ..xxxxx. | |
185 | */ | |
0881a0fd | 186 | static unsigned short continued_bits[] = { |
2d05deef KS |
187 | 0x3c, 0x3e, 0x03, 0x27, 0x3f, 0x3e, 0x3c, 0x3e}; |
188 | ||
189 | /* Marker for continuation lines. */ | |
190 | /* | |
191 | ..xxxx.. | |
192 | .xxxxx.. | |
193 | xx...... | |
194 | xxx..x.. | |
195 | xxxxxx.. | |
196 | .xxxxx.. | |
197 | ..xxxx.. | |
198 | .xxxxx.. | |
199 | */ | |
0881a0fd | 200 | static unsigned short continuation_bits[] = { |
2d05deef KS |
201 | 0x3c, 0x7c, 0xc0, 0xe4, 0xfc, 0x7c, 0x3c, 0x7c}; |
202 | ||
203 | /* Overlay arrow bitmap. A triangular arrow. */ | |
204 | /* | |
205 | xx...... | |
206 | xxxx.... | |
207 | xxxxx... | |
208 | xxxxxx.. | |
209 | xxxxxx.. | |
210 | xxxxx... | |
211 | xxxx.... | |
212 | xx...... | |
213 | */ | |
0881a0fd | 214 | static unsigned short ov_bits[] = { |
2d05deef KS |
215 | 0xc0, 0xf0, 0xf8, 0xfc, 0xfc, 0xf8, 0xf0, 0xc0}; |
216 | ||
217 | #if 0 | |
218 | /* Reverse Overlay arrow bitmap. A triangular arrow. */ | |
219 | /* | |
220 | ......xx | |
221 | ....xxxx | |
222 | ...xxxxx | |
223 | ..xxxxxx | |
224 | ..xxxxxx | |
225 | ...xxxxx | |
226 | ....xxxx | |
227 | ......xx | |
228 | */ | |
0881a0fd | 229 | static unsigned short rev_ov_bits[] = { |
2d05deef KS |
230 | 0x03, 0x0f, 0x1f, 0x3f, 0x3f, 0x1f, 0x0f, 0x03}; |
231 | #endif | |
232 | ||
233 | /* First line bitmap. An top-left angle. */ | |
234 | /* | |
235 | xxxxxx.. | |
236 | xxxxxx.. | |
237 | xx...... | |
238 | xx...... | |
239 | xx...... | |
240 | xx...... | |
241 | xx...... | |
242 | ........ | |
243 | */ | |
0881a0fd | 244 | static unsigned short top_left_angle_bits[] = { |
2d05deef KS |
245 | 0xfc, 0xfc, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0x00}; |
246 | ||
247 | /* First line bitmap. An right-up angle. */ | |
248 | /* | |
249 | ..xxxxxx | |
250 | ..xxxxxx | |
251 | ......xx | |
252 | ......xx | |
253 | ......xx | |
254 | ......xx | |
255 | ......xx | |
256 | ........ | |
257 | */ | |
0881a0fd | 258 | static unsigned short top_right_angle_bits[] = { |
2d05deef KS |
259 | 0x3f, 0x3f, 0x03, 0x03, 0x03, 0x03, 0x03, 0x00}; |
260 | ||
261 | /* Last line bitmap. An left-down angle. */ | |
262 | /* | |
263 | ........ | |
264 | xx...... | |
265 | xx...... | |
266 | xx...... | |
267 | xx...... | |
268 | xx...... | |
269 | xxxxxx.. | |
270 | xxxxxx.. | |
271 | */ | |
0881a0fd | 272 | static unsigned short bottom_left_angle_bits[] = { |
2d05deef KS |
273 | 0x00, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xfc, 0xfc}; |
274 | ||
275 | /* Last line bitmap. An right-down angle. */ | |
276 | /* | |
277 | ........ | |
278 | ......xx | |
279 | ......xx | |
280 | ......xx | |
281 | ......xx | |
282 | ......xx | |
283 | ..xxxxxx | |
284 | ..xxxxxx | |
285 | */ | |
0881a0fd | 286 | static unsigned short bottom_right_angle_bits[] = { |
2d05deef KS |
287 | 0x00, 0x03, 0x03, 0x03, 0x03, 0x03, 0x3f, 0x3f}; |
288 | ||
289 | /* First/last line bitmap. An left bracket. */ | |
290 | /* | |
291 | xxxxxx.. | |
292 | xxxxxx.. | |
293 | xx...... | |
294 | xx...... | |
295 | xx...... | |
296 | xx...... | |
297 | xx...... | |
298 | xx...... | |
299 | xxxxxx.. | |
300 | xxxxxx.. | |
301 | */ | |
0881a0fd | 302 | static unsigned short left_bracket_bits[] = { |
2d05deef KS |
303 | 0xfc, 0xfc, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xfc, 0xfc}; |
304 | ||
305 | /* First/last line bitmap. An right bracket. */ | |
306 | /* | |
307 | ..xxxxxx | |
308 | ..xxxxxx | |
309 | ......xx | |
310 | ......xx | |
311 | ......xx | |
312 | ......xx | |
313 | ......xx | |
314 | ......xx | |
315 | ..xxxxxx | |
316 | ..xxxxxx | |
317 | */ | |
0881a0fd | 318 | static unsigned short right_bracket_bits[] = { |
2d05deef KS |
319 | 0x3f, 0x3f, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x3f, 0x3f}; |
320 | ||
321 | /* Filled box cursor bitmap. A filled box; max 13 pixels high. */ | |
322 | /* | |
323 | xxxxxxx. | |
324 | xxxxxxx. | |
325 | xxxxxxx. | |
326 | xxxxxxx. | |
327 | xxxxxxx. | |
328 | xxxxxxx. | |
329 | xxxxxxx. | |
330 | xxxxxxx. | |
331 | xxxxxxx. | |
332 | xxxxxxx. | |
333 | xxxxxxx. | |
334 | xxxxxxx. | |
335 | xxxxxxx. | |
336 | */ | |
0881a0fd | 337 | static unsigned short filled_box_cursor_bits[] = { |
2d05deef KS |
338 | 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe}; |
339 | ||
340 | /* Hollow box cursor bitmap. A hollow box; max 13 pixels high. */ | |
341 | /* | |
342 | xxxxxxx. | |
343 | x.....x. | |
344 | x.....x. | |
345 | x.....x. | |
346 | x.....x. | |
347 | x.....x. | |
348 | x.....x. | |
349 | x.....x. | |
350 | x.....x. | |
351 | x.....x. | |
352 | x.....x. | |
353 | x.....x. | |
354 | xxxxxxx. | |
355 | */ | |
0881a0fd | 356 | static unsigned short hollow_box_cursor_bits[] = { |
2d05deef KS |
357 | 0xfe, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0xfe}; |
358 | ||
359 | /* Bar cursor bitmap. A vertical bar; max 13 pixels high. */ | |
360 | /* | |
361 | xx...... | |
362 | xx...... | |
363 | xx...... | |
364 | xx...... | |
365 | xx...... | |
366 | xx...... | |
367 | xx...... | |
368 | xx...... | |
369 | xx...... | |
370 | xx...... | |
371 | xx...... | |
372 | xx...... | |
373 | xx...... | |
374 | */ | |
0881a0fd | 375 | static unsigned short bar_cursor_bits[] = { |
2d05deef KS |
376 | 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0}; |
377 | ||
378 | /* HBar cursor bitmap. A horisontal bar; 2 pixels high. */ | |
379 | /* | |
380 | xxxxxxx. | |
381 | xxxxxxx. | |
382 | */ | |
0881a0fd | 383 | static unsigned short hbar_cursor_bits[] = { |
2d05deef KS |
384 | 0xfe, 0xfe}; |
385 | ||
386 | ||
387 | /* Bitmap drawn to indicate lines not displaying text if | |
388 | `indicate-empty-lines' is non-nil. */ | |
389 | /* | |
390 | ........ | |
391 | ..xxxx.. | |
392 | ........ | |
393 | ........ | |
394 | ..xxxx.. | |
395 | ........ | |
396 | */ | |
0881a0fd | 397 | static unsigned short zv_bits[] = { |
2d05deef KS |
398 | 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, |
399 | 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, | |
400 | 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, | |
401 | 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, | |
402 | 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, | |
403 | 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, | |
404 | 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, | |
405 | 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00}; | |
406 | ||
407 | /* Hollow square bitmap. */ | |
408 | /* | |
409 | .xxxxxx. | |
410 | .x....x. | |
411 | .x....x. | |
412 | .x....x. | |
413 | .x....x. | |
414 | .xxxxxx. | |
415 | */ | |
0881a0fd | 416 | static unsigned short hollow_square_bits[] = { |
2d05deef KS |
417 | 0x7e, 0x42, 0x42, 0x42, 0x42, 0x7e}; |
418 | ||
419 | ||
0881a0fd KS |
420 | #define BYTES_PER_BITMAP_ROW (sizeof (unsigned short)) |
421 | #define STANDARD_BITMAP_HEIGHT(bits) (sizeof (bits)/BYTES_PER_BITMAP_ROW) | |
422 | #define FRBITS(bits) bits, STANDARD_BITMAP_HEIGHT (bits) | |
2d05deef | 423 | |
2d05deef KS |
424 | struct fringe_bitmap standard_bitmaps[MAX_STANDARD_FRINGE_BITMAPS] = |
425 | { | |
426 | { NULL, 0, 0, 0, 0, 0 }, /* NO_FRINGE_BITMAP */ | |
427 | { FRBITS (unknown_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, | |
428 | { FRBITS (left_arrow_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, | |
429 | { FRBITS (right_arrow_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, | |
430 | { FRBITS (up_arrow_bits), 8, 0, ALIGN_BITMAP_TOP, 0 }, | |
431 | { FRBITS (down_arrow_bits), 8, 0, ALIGN_BITMAP_BOTTOM, 0 }, | |
432 | { FRBITS (continued_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, | |
433 | { FRBITS (continuation_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, | |
434 | { FRBITS (ov_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, | |
435 | { FRBITS (top_left_angle_bits), 8, 0, ALIGN_BITMAP_TOP, 0 }, | |
436 | { FRBITS (top_right_angle_bits), 8, 0, ALIGN_BITMAP_TOP, 0 }, | |
437 | { FRBITS (bottom_left_angle_bits), 8, 0, ALIGN_BITMAP_BOTTOM, 0 }, | |
438 | { FRBITS (bottom_right_angle_bits), 8, 0, ALIGN_BITMAP_BOTTOM, 0 }, | |
439 | { FRBITS (left_bracket_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, | |
440 | { FRBITS (right_bracket_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, | |
441 | { FRBITS (filled_box_cursor_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, | |
442 | { FRBITS (hollow_box_cursor_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, | |
443 | { FRBITS (hollow_square_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, | |
444 | { FRBITS (bar_cursor_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, | |
445 | { FRBITS (hbar_cursor_bits), 8, 0, ALIGN_BITMAP_BOTTOM, 0 }, | |
446 | { FRBITS (zv_bits), 8, 3, ALIGN_BITMAP_TOP, 0 }, | |
447 | }; | |
448 | ||
ad67849e KS |
449 | static struct fringe_bitmap **fringe_bitmaps; |
450 | static unsigned *fringe_faces; | |
451 | static int max_fringe_bitmaps; | |
2d05deef KS |
452 | |
453 | static int max_used_fringe_bitmap = MAX_STANDARD_FRINGE_BITMAPS; | |
454 | ||
4cce0ab7 KS |
455 | |
456 | /* Lookup bitmap number for symbol BITMAP. | |
457 | Return 0 if not a bitmap. */ | |
2d05deef KS |
458 | |
459 | int | |
4cce0ab7 | 460 | lookup_fringe_bitmap (bitmap) |
7a2a85be KS |
461 | Lisp_Object bitmap; |
462 | { | |
463 | int bn; | |
464 | ||
4cce0ab7 | 465 | bitmap = Fget (bitmap, Qfringe); |
7a2a85be KS |
466 | if (!INTEGERP (bitmap)) |
467 | return 0; | |
468 | ||
469 | bn = XINT (bitmap); | |
4cce0ab7 KS |
470 | if (bn > NO_FRINGE_BITMAP |
471 | && bn < max_used_fringe_bitmap | |
472 | && (bn < MAX_STANDARD_FRINGE_BITMAPS | |
473 | || fringe_bitmaps[bn] != NULL)) | |
474 | return bn; | |
475 | ||
476 | return 0; | |
7a2a85be KS |
477 | } |
478 | ||
479 | /* Get fringe bitmap name for bitmap number BN. | |
480 | ||
481 | Found by traversing Vfringe_bitmaps comparing BN to the | |
482 | fringe property for each symbol. | |
483 | ||
484 | Return BN if not found in Vfringe_bitmaps. */ | |
485 | ||
486 | static Lisp_Object | |
487 | get_fringe_bitmap_name (bn) | |
488 | int bn; | |
489 | { | |
490 | Lisp_Object bitmaps; | |
491 | Lisp_Object num; | |
492 | ||
493 | /* Zero means no bitmap -- return nil. */ | |
494 | if (bn <= 0) | |
495 | return Qnil; | |
496 | ||
497 | bitmaps = Vfringe_bitmaps; | |
498 | num = make_number (bn); | |
499 | ||
500 | while (CONSP (bitmaps)) | |
501 | { | |
502 | Lisp_Object bitmap = XCAR (bitmaps); | |
503 | if (EQ (num, Fget (bitmap, Qfringe))) | |
504 | return bitmap; | |
505 | bitmaps = XCDR (bitmaps); | |
506 | } | |
507 | ||
508 | return num; | |
509 | } | |
510 | ||
511 | ||
2d05deef KS |
512 | /* Draw the bitmap WHICH in one of the left or right fringes of |
513 | window W. ROW is the glyph row for which to display the bitmap; it | |
514 | determines the vertical position at which the bitmap has to be | |
515 | drawn. | |
516 | LEFT_P is 1 for left fringe, 0 for right fringe. | |
517 | */ | |
518 | ||
519 | void | |
520 | draw_fringe_bitmap_1 (w, row, left_p, overlay, which) | |
521 | struct window *w; | |
522 | struct glyph_row *row; | |
523 | int left_p, overlay; | |
524 | enum fringe_bitmap_type which; | |
525 | { | |
526 | struct frame *f = XFRAME (WINDOW_FRAME (w)); | |
527 | struct draw_fringe_bitmap_params p; | |
528 | struct fringe_bitmap *fb; | |
529 | int period; | |
530 | int face_id = DEFAULT_FACE_ID; | |
531 | ||
532 | p.cursor_p = 0; | |
533 | p.overlay_p = (overlay & 1) == 1; | |
534 | p.cursor_p = (overlay & 2) == 2; | |
535 | ||
536 | if (which != NO_FRINGE_BITMAP) | |
537 | { | |
538 | } | |
539 | else if (left_p) | |
540 | { | |
541 | which = row->left_fringe_bitmap; | |
542 | face_id = row->left_fringe_face_id; | |
543 | } | |
544 | else | |
545 | { | |
546 | which = row->right_fringe_bitmap; | |
547 | face_id = row->right_fringe_face_id; | |
548 | } | |
549 | ||
550 | if (face_id == DEFAULT_FACE_ID) | |
551 | face_id = fringe_faces[which]; | |
552 | ||
553 | fb = fringe_bitmaps[which]; | |
554 | if (fb == NULL) | |
555 | fb = &standard_bitmaps[which < MAX_STANDARD_FRINGE_BITMAPS | |
556 | ? which : UNDEF_FRINGE_BITMAP]; | |
557 | ||
558 | period = fb->period; | |
559 | ||
560 | /* Convert row to frame coordinates. */ | |
561 | p.y = WINDOW_TO_FRAME_PIXEL_Y (w, row->y); | |
562 | ||
563 | p.which = which; | |
564 | p.bits = fb->bits; | |
565 | p.wd = fb->width; | |
566 | ||
567 | p.h = fb->height; | |
568 | p.dh = (period > 0 ? (p.y % period) : 0); | |
569 | p.h -= p.dh; | |
570 | /* Clip bitmap if too high. */ | |
571 | if (p.h > row->height) | |
572 | p.h = row->height; | |
573 | ||
574 | p.face = FACE_FROM_ID (f, face_id); | |
575 | ||
576 | if (p.face == NULL) | |
577 | { | |
578 | /* Why does this happen? ++kfs */ | |
579 | return; | |
580 | } | |
581 | ||
582 | PREPARE_FACE_FOR_DISPLAY (f, p.face); | |
583 | ||
584 | /* Clear left fringe if no bitmap to draw or if bitmap doesn't fill | |
585 | the fringe. */ | |
586 | p.bx = -1; | |
587 | if (left_p) | |
588 | { | |
589 | int wd = WINDOW_LEFT_FRINGE_WIDTH (w); | |
590 | int x = window_box_left (w, (WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w) | |
591 | ? LEFT_MARGIN_AREA | |
592 | : TEXT_AREA)); | |
593 | if (p.wd > wd) | |
594 | p.wd = wd; | |
595 | p.x = x - p.wd - (wd - p.wd) / 2; | |
596 | ||
597 | if (p.wd < wd || row->height > p.h) | |
598 | { | |
599 | /* If W has a vertical border to its left, don't draw over it. */ | |
600 | wd -= ((!WINDOW_LEFTMOST_P (w) | |
601 | && !WINDOW_HAS_VERTICAL_SCROLL_BAR (w)) | |
602 | ? 1 : 0); | |
603 | p.bx = x - wd; | |
604 | p.nx = wd; | |
605 | } | |
606 | } | |
607 | else | |
608 | { | |
609 | int x = window_box_right (w, | |
610 | (WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w) | |
611 | ? RIGHT_MARGIN_AREA | |
612 | : TEXT_AREA)); | |
613 | int wd = WINDOW_RIGHT_FRINGE_WIDTH (w); | |
614 | if (p.wd > wd) | |
615 | p.wd = wd; | |
616 | p.x = x + (wd - p.wd) / 2; | |
617 | /* Clear right fringe if no bitmap to draw of if bitmap doesn't fill | |
618 | the fringe. */ | |
619 | if (p.wd < wd || row->height > p.h) | |
620 | { | |
621 | p.bx = x; | |
622 | p.nx = wd; | |
623 | } | |
624 | } | |
625 | ||
626 | if (p.bx >= 0) | |
627 | { | |
628 | int header_line_height = WINDOW_HEADER_LINE_HEIGHT (w); | |
629 | ||
630 | p.by = WINDOW_TO_FRAME_PIXEL_Y (w, max (header_line_height, row->y)); | |
631 | p.ny = row->visible_height; | |
632 | } | |
633 | ||
634 | /* Adjust y to the offset in the row to start drawing the bitmap. */ | |
635 | switch (fb->align) | |
636 | { | |
637 | case ALIGN_BITMAP_CENTER: | |
638 | p.y += (row->height - p.h) / 2; | |
639 | break; | |
640 | case ALIGN_BITMAP_BOTTOM: | |
641 | p.h = fb->height; | |
642 | p.y += (row->visible_height - p.h); | |
643 | break; | |
644 | case ALIGN_BITMAP_TOP: | |
645 | break; | |
646 | } | |
647 | ||
e581a466 | 648 | FRAME_RIF (f)->draw_fringe_bitmap (w, row, &p); |
2d05deef KS |
649 | } |
650 | ||
651 | void | |
652 | draw_fringe_bitmap (w, row, left_p) | |
653 | struct window *w; | |
654 | struct glyph_row *row; | |
655 | int left_p; | |
656 | { | |
657 | int overlay = 0; | |
658 | ||
659 | if (!left_p && row->cursor_in_fringe_p) | |
660 | { | |
661 | int cursor = NO_FRINGE_BITMAP; | |
662 | ||
663 | switch (w->phys_cursor_type) | |
664 | { | |
665 | case HOLLOW_BOX_CURSOR: | |
0881a0fd | 666 | if (row->visible_height >= STANDARD_BITMAP_HEIGHT (hollow_box_cursor_bits)) |
2d05deef KS |
667 | cursor = HOLLOW_BOX_CURSOR_BITMAP; |
668 | else | |
669 | cursor = HOLLOW_SQUARE_BITMAP; | |
670 | break; | |
671 | case FILLED_BOX_CURSOR: | |
672 | cursor = FILLED_BOX_CURSOR_BITMAP; | |
673 | break; | |
674 | case BAR_CURSOR: | |
675 | cursor = BAR_CURSOR_BITMAP; | |
676 | break; | |
677 | case HBAR_CURSOR: | |
678 | cursor = HBAR_CURSOR_BITMAP; | |
679 | break; | |
680 | case NO_CURSOR: | |
681 | default: | |
682 | w->phys_cursor_on_p = 0; | |
683 | row->cursor_in_fringe_p = 0; | |
684 | break; | |
685 | } | |
686 | if (cursor != NO_FRINGE_BITMAP) | |
687 | { | |
688 | draw_fringe_bitmap_1 (w, row, 0, 2, cursor); | |
689 | overlay = cursor == FILLED_BOX_CURSOR_BITMAP ? 3 : 1; | |
690 | } | |
691 | } | |
692 | ||
693 | draw_fringe_bitmap_1 (w, row, left_p, overlay, NO_FRINGE_BITMAP); | |
694 | ||
695 | if (left_p && row->overlay_arrow_p) | |
1c2a9e98 KS |
696 | draw_fringe_bitmap_1 (w, row, 1, 1, |
697 | (w->overlay_arrow_bitmap | |
698 | ? w->overlay_arrow_bitmap | |
699 | : OVERLAY_ARROW_BITMAP)); | |
2d05deef KS |
700 | } |
701 | ||
702 | ||
703 | /* Draw fringe bitmaps for glyph row ROW on window W. Call this | |
704 | function with input blocked. */ | |
705 | ||
706 | void | |
707 | draw_row_fringe_bitmaps (w, row) | |
708 | struct window *w; | |
709 | struct glyph_row *row; | |
710 | { | |
711 | xassert (interrupt_input_blocked); | |
712 | ||
713 | /* If row is completely invisible, because of vscrolling, we | |
714 | don't have to draw anything. */ | |
715 | if (row->visible_height <= 0) | |
716 | return; | |
717 | ||
718 | if (WINDOW_LEFT_FRINGE_WIDTH (w) != 0) | |
719 | draw_fringe_bitmap (w, row, 1); | |
720 | ||
721 | if (WINDOW_RIGHT_FRINGE_WIDTH (w) != 0) | |
722 | draw_fringe_bitmap (w, row, 0); | |
723 | } | |
724 | ||
725 | /* Draw the fringes of window W. Only fringes for rows marked for | |
726 | update in redraw_fringe_bitmaps_p are drawn. */ | |
727 | ||
728 | void | |
729 | draw_window_fringes (w) | |
730 | struct window *w; | |
731 | { | |
732 | struct glyph_row *row; | |
733 | int yb = window_text_bottom_y (w); | |
734 | int nrows = w->current_matrix->nrows; | |
735 | int y = 0, rn; | |
736 | ||
737 | if (w->pseudo_window_p) | |
738 | return; | |
739 | ||
740 | for (y = 0, rn = 0, row = w->current_matrix->rows; | |
741 | y < yb && rn < nrows; | |
742 | y += row->height, ++row, ++rn) | |
743 | { | |
744 | if (!row->redraw_fringe_bitmaps_p) | |
745 | continue; | |
746 | draw_row_fringe_bitmaps (w, row); | |
747 | row->redraw_fringe_bitmaps_p = 0; | |
748 | } | |
749 | } | |
750 | ||
751 | ||
752 | /* Recalculate the bitmaps to show in the fringes of window W. | |
753 | If FORCE_P is 0, only mark rows with modified bitmaps for update in | |
754 | redraw_fringe_bitmaps_p; else mark all rows for update. */ | |
755 | ||
756 | int | |
757 | update_window_fringes (w, force_p) | |
758 | struct window *w; | |
759 | int force_p; | |
760 | { | |
761 | struct glyph_row *row, *cur = 0; | |
762 | int yb = window_text_bottom_y (w); | |
763 | int rn, nrows = w->current_matrix->nrows; | |
764 | int y; | |
765 | int redraw_p = 0; | |
5797a7a0 KS |
766 | Lisp_Object boundary_top = Qnil, boundary_bot = Qnil; |
767 | Lisp_Object arrow_top = Qnil, arrow_bot = Qnil; | |
768 | Lisp_Object empty_pos; | |
769 | Lisp_Object ind = Qnil; | |
2d05deef KS |
770 | |
771 | if (w->pseudo_window_p) | |
772 | return 0; | |
773 | ||
774 | if (!MINI_WINDOW_P (w) | |
775 | && (ind = XBUFFER (w->buffer)->indicate_buffer_boundaries, !NILP (ind))) | |
776 | { | |
5797a7a0 KS |
777 | if (EQ (ind, Qleft) || EQ (ind, Qright)) |
778 | boundary_top = boundary_bot = arrow_top = arrow_bot = ind; | |
779 | else if (CONSP (ind) && CONSP (XCAR (ind))) | |
780 | { | |
781 | Lisp_Object pos; | |
782 | if (pos = Fassq (Qt, ind), !NILP (pos)) | |
783 | boundary_top = boundary_bot = arrow_top = arrow_bot = XCDR (pos); | |
784 | if (pos = Fassq (Qtop, ind), !NILP (pos)) | |
785 | boundary_top = XCDR (pos); | |
786 | if (pos = Fassq (Qbottom, ind), !NILP (pos)) | |
787 | boundary_bot = XCDR (pos); | |
788 | if (pos = Fassq (Qup, ind), !NILP (pos)) | |
789 | arrow_top = XCDR (pos); | |
790 | if (pos = Fassq (Qdown, ind), !NILP (pos)) | |
791 | arrow_bot = XCDR (pos); | |
792 | } | |
2d05deef | 793 | else |
5797a7a0 KS |
794 | ind = Qnil; |
795 | } | |
2d05deef | 796 | |
5797a7a0 KS |
797 | if (!NILP (ind)) |
798 | { | |
799 | int do_eob = 1, do_bob = 1; | |
2d05deef KS |
800 | |
801 | for (y = 0, rn = 0; | |
802 | y < yb && rn < nrows; | |
803 | y += row->height, ++rn) | |
804 | { | |
805 | unsigned indicate_bob_p, indicate_top_line_p; | |
806 | unsigned indicate_eob_p, indicate_bottom_line_p; | |
bffe8c26 | 807 | |
2d05deef KS |
808 | row = w->desired_matrix->rows + rn; |
809 | if (!row->enabled_p) | |
810 | row = w->current_matrix->rows + rn; | |
811 | ||
812 | indicate_bob_p = row->indicate_bob_p; | |
813 | indicate_top_line_p = row->indicate_top_line_p; | |
814 | indicate_eob_p = row->indicate_eob_p; | |
815 | indicate_bottom_line_p = row->indicate_bottom_line_p; | |
bffe8c26 | 816 | |
2d05deef KS |
817 | row->indicate_bob_p = row->indicate_top_line_p = 0; |
818 | row->indicate_eob_p = row->indicate_bottom_line_p = 0; | |
819 | ||
5797a7a0 | 820 | if (!NILP (boundary_top) |
2d05deef KS |
821 | && MATRIX_ROW_START_CHARPOS (row) <= BUF_BEGV (XBUFFER (w->buffer))) |
822 | row->indicate_bob_p = do_bob, do_bob = 0; | |
5797a7a0 | 823 | else if (!NILP (arrow_top) |
2d05deef KS |
824 | && (WINDOW_WANTS_HEADER_LINE_P (w) ? 1 : 0) == rn) |
825 | row->indicate_top_line_p = 1; | |
826 | ||
5797a7a0 | 827 | if (!NILP (boundary_bot) |
2d05deef KS |
828 | && MATRIX_ROW_END_CHARPOS (row) >= BUF_ZV (XBUFFER (w->buffer))) |
829 | row->indicate_eob_p = do_eob, do_eob = 0; | |
5797a7a0 | 830 | else if (!NILP (arrow_bot) |
2d05deef KS |
831 | && y + row->height >= yb) |
832 | row->indicate_bottom_line_p = 1; | |
833 | ||
834 | if (indicate_bob_p != row->indicate_bob_p | |
835 | || indicate_top_line_p != row->indicate_top_line_p | |
836 | || indicate_eob_p != row->indicate_eob_p | |
837 | || indicate_bottom_line_p != row->indicate_bottom_line_p) | |
838 | row->redraw_fringe_bitmaps_p = 1; | |
839 | } | |
840 | } | |
841 | ||
5797a7a0 KS |
842 | empty_pos = XBUFFER (w->buffer)->indicate_empty_lines; |
843 | if (!NILP (empty_pos) && !EQ (empty_pos, Qright)) | |
844 | empty_pos = WINDOW_LEFT_FRINGE_WIDTH (w) == 0 ? Qright : Qleft; | |
2d05deef KS |
845 | |
846 | for (y = 0, rn = 0; | |
847 | y < yb && rn < nrows; | |
848 | y += row->height, rn++) | |
849 | { | |
850 | enum fringe_bitmap_type left, right; | |
851 | unsigned left_face_id, right_face_id; | |
852 | ||
853 | row = w->desired_matrix->rows + rn; | |
854 | cur = w->current_matrix->rows + rn; | |
855 | if (!row->enabled_p) | |
856 | row = cur; | |
857 | ||
858 | left_face_id = right_face_id = DEFAULT_FACE_ID; | |
859 | ||
860 | /* Decide which bitmap to draw in the left fringe. */ | |
861 | if (WINDOW_LEFT_FRINGE_WIDTH (w) == 0) | |
862 | left = NO_FRINGE_BITMAP; | |
863 | else if (row->left_user_fringe_bitmap != NO_FRINGE_BITMAP) | |
864 | { | |
865 | left = row->left_user_fringe_bitmap; | |
866 | left_face_id = row->left_user_fringe_face_id; | |
867 | } | |
5797a7a0 KS |
868 | else if (row->indicate_bob_p && EQ (boundary_top, Qleft)) |
869 | left = ((row->indicate_eob_p && EQ (boundary_bot, Qleft)) | |
2d05deef | 870 | ? LEFT_BRACKET_BITMAP : TOP_LEFT_ANGLE_BITMAP); |
5797a7a0 | 871 | else if (row->indicate_eob_p && EQ (boundary_bot, Qleft)) |
2d05deef KS |
872 | left = BOTTOM_LEFT_ANGLE_BITMAP; |
873 | else if (row->truncated_on_left_p) | |
874 | left = LEFT_TRUNCATION_BITMAP; | |
875 | else if (MATRIX_ROW_CONTINUATION_LINE_P (row)) | |
876 | left = CONTINUATION_LINE_BITMAP; | |
5797a7a0 | 877 | else if (row->indicate_empty_line_p && EQ (empty_pos, Qleft)) |
2d05deef | 878 | left = ZV_LINE_BITMAP; |
5797a7a0 | 879 | else if (row->indicate_top_line_p && EQ (arrow_top, Qleft)) |
2d05deef | 880 | left = UP_ARROW_BITMAP; |
5797a7a0 | 881 | else if (row->indicate_bottom_line_p && EQ (arrow_bot, Qleft)) |
2d05deef KS |
882 | left = DOWN_ARROW_BITMAP; |
883 | else | |
884 | left = NO_FRINGE_BITMAP; | |
885 | ||
886 | /* Decide which bitmap to draw in the right fringe. */ | |
887 | if (WINDOW_RIGHT_FRINGE_WIDTH (w) == 0) | |
888 | right = NO_FRINGE_BITMAP; | |
889 | else if (row->right_user_fringe_bitmap != NO_FRINGE_BITMAP) | |
890 | { | |
891 | right = row->right_user_fringe_bitmap; | |
892 | right_face_id = row->right_user_fringe_face_id; | |
893 | } | |
5797a7a0 KS |
894 | else if (row->indicate_bob_p && EQ (boundary_top, Qright)) |
895 | right = ((row->indicate_eob_p && EQ (boundary_bot, Qright)) | |
2d05deef | 896 | ? RIGHT_BRACKET_BITMAP : TOP_RIGHT_ANGLE_BITMAP); |
5797a7a0 | 897 | else if (row->indicate_eob_p && EQ (boundary_bot, Qright)) |
2d05deef KS |
898 | right = BOTTOM_RIGHT_ANGLE_BITMAP; |
899 | else if (row->truncated_on_right_p) | |
900 | right = RIGHT_TRUNCATION_BITMAP; | |
901 | else if (row->continued_p) | |
902 | right = CONTINUED_LINE_BITMAP; | |
5797a7a0 | 903 | else if (row->indicate_top_line_p && EQ (arrow_top, Qright)) |
2d05deef | 904 | right = UP_ARROW_BITMAP; |
5797a7a0 | 905 | else if (row->indicate_bottom_line_p && EQ (arrow_bot, Qright)) |
2d05deef | 906 | right = DOWN_ARROW_BITMAP; |
5797a7a0 | 907 | else if (row->indicate_empty_line_p && EQ (empty_pos, Qright)) |
2d05deef KS |
908 | right = ZV_LINE_BITMAP; |
909 | else | |
910 | right = NO_FRINGE_BITMAP; | |
911 | ||
912 | if (force_p | |
913 | || row->y != cur->y | |
914 | || row->visible_height != cur->visible_height | |
915 | || left != cur->left_fringe_bitmap | |
916 | || right != cur->right_fringe_bitmap | |
917 | || left_face_id != cur->left_fringe_face_id | |
918 | || right_face_id != cur->right_fringe_face_id | |
919 | || cur->redraw_fringe_bitmaps_p) | |
920 | { | |
921 | redraw_p = row->redraw_fringe_bitmaps_p = cur->redraw_fringe_bitmaps_p = 1; | |
922 | cur->left_fringe_bitmap = left; | |
923 | cur->right_fringe_bitmap = right; | |
924 | cur->left_fringe_face_id = left_face_id; | |
925 | cur->right_fringe_face_id = right_face_id; | |
926 | } | |
927 | ||
928 | if (row->overlay_arrow_p != cur->overlay_arrow_p) | |
929 | { | |
930 | redraw_p = row->redraw_fringe_bitmaps_p = cur->redraw_fringe_bitmaps_p = 1; | |
931 | cur->overlay_arrow_p = row->overlay_arrow_p; | |
932 | } | |
933 | ||
934 | row->left_fringe_bitmap = left; | |
935 | row->right_fringe_bitmap = right; | |
936 | row->left_fringe_face_id = left_face_id; | |
937 | row->right_fringe_face_id = right_face_id; | |
938 | } | |
939 | ||
940 | return redraw_p; | |
941 | } | |
942 | ||
943 | ||
bffe8c26 | 944 | /* Compute actual fringe widths for frame F. |
2d05deef KS |
945 | |
946 | If REDRAW is 1, redraw F if the fringe settings was actually | |
947 | modified and F is visible. | |
948 | ||
949 | Since the combined left and right fringe must occupy an integral | |
950 | number of columns, we may need to add some pixels to each fringe. | |
951 | Typically, we add an equal amount (+/- 1 pixel) to each fringe, | |
952 | but a negative width value is taken literally (after negating it). | |
953 | ||
954 | We never make the fringes narrower than specified. It is planned | |
955 | to make fringe bitmaps customizable and expandable, and at that | |
956 | time, the user will typically specify the minimum number of pixels | |
957 | needed for his bitmaps, so we shouldn't select anything less than | |
958 | what is specified. | |
959 | */ | |
960 | ||
961 | void | |
962 | compute_fringe_widths (f, redraw) | |
963 | struct frame *f; | |
964 | int redraw; | |
965 | { | |
966 | int o_left = FRAME_LEFT_FRINGE_WIDTH (f); | |
967 | int o_right = FRAME_RIGHT_FRINGE_WIDTH (f); | |
968 | int o_cols = FRAME_FRINGE_COLS (f); | |
969 | ||
970 | Lisp_Object left_fringe = Fassq (Qleft_fringe, f->param_alist); | |
971 | Lisp_Object right_fringe = Fassq (Qright_fringe, f->param_alist); | |
972 | int left_fringe_width, right_fringe_width; | |
973 | ||
974 | if (!NILP (left_fringe)) | |
975 | left_fringe = Fcdr (left_fringe); | |
976 | if (!NILP (right_fringe)) | |
977 | right_fringe = Fcdr (right_fringe); | |
978 | ||
979 | left_fringe_width = ((NILP (left_fringe) || !INTEGERP (left_fringe)) ? 8 : | |
980 | XINT (left_fringe)); | |
981 | right_fringe_width = ((NILP (right_fringe) || !INTEGERP (right_fringe)) ? 8 : | |
982 | XINT (right_fringe)); | |
983 | ||
984 | if (left_fringe_width || right_fringe_width) | |
985 | { | |
986 | int left_wid = left_fringe_width >= 0 ? left_fringe_width : -left_fringe_width; | |
987 | int right_wid = right_fringe_width >= 0 ? right_fringe_width : -right_fringe_width; | |
988 | int conf_wid = left_wid + right_wid; | |
989 | int font_wid = FRAME_COLUMN_WIDTH (f); | |
990 | int cols = (left_wid + right_wid + font_wid-1) / font_wid; | |
991 | int real_wid = cols * font_wid; | |
992 | if (left_wid && right_wid) | |
993 | { | |
994 | if (left_fringe_width < 0) | |
995 | { | |
996 | /* Left fringe width is fixed, adjust right fringe if necessary */ | |
997 | FRAME_LEFT_FRINGE_WIDTH (f) = left_wid; | |
998 | FRAME_RIGHT_FRINGE_WIDTH (f) = real_wid - left_wid; | |
999 | } | |
1000 | else if (right_fringe_width < 0) | |
1001 | { | |
1002 | /* Right fringe width is fixed, adjust left fringe if necessary */ | |
1003 | FRAME_LEFT_FRINGE_WIDTH (f) = real_wid - right_wid; | |
1004 | FRAME_RIGHT_FRINGE_WIDTH (f) = right_wid; | |
1005 | } | |
1006 | else | |
1007 | { | |
1008 | /* Adjust both fringes with an equal amount. | |
1009 | Note that we are doing integer arithmetic here, so don't | |
1010 | lose a pixel if the total width is an odd number. */ | |
1011 | int fill = real_wid - conf_wid; | |
1012 | FRAME_LEFT_FRINGE_WIDTH (f) = left_wid + fill/2; | |
1013 | FRAME_RIGHT_FRINGE_WIDTH (f) = right_wid + fill - fill/2; | |
1014 | } | |
1015 | } | |
1016 | else if (left_fringe_width) | |
1017 | { | |
1018 | FRAME_LEFT_FRINGE_WIDTH (f) = real_wid; | |
1019 | FRAME_RIGHT_FRINGE_WIDTH (f) = 0; | |
1020 | } | |
1021 | else | |
1022 | { | |
1023 | FRAME_LEFT_FRINGE_WIDTH (f) = 0; | |
1024 | FRAME_RIGHT_FRINGE_WIDTH (f) = real_wid; | |
1025 | } | |
1026 | FRAME_FRINGE_COLS (f) = cols; | |
1027 | } | |
1028 | else | |
1029 | { | |
1030 | FRAME_LEFT_FRINGE_WIDTH (f) = 0; | |
1031 | FRAME_RIGHT_FRINGE_WIDTH (f) = 0; | |
1032 | FRAME_FRINGE_COLS (f) = 0; | |
1033 | } | |
1034 | ||
1035 | if (redraw && FRAME_VISIBLE_P (f)) | |
1036 | if (o_left != FRAME_LEFT_FRINGE_WIDTH (f) || | |
1037 | o_right != FRAME_RIGHT_FRINGE_WIDTH (f) || | |
1038 | o_cols != FRAME_FRINGE_COLS (f)) | |
1039 | redraw_frame (f); | |
1040 | } | |
1041 | ||
7a2a85be | 1042 | |
4cce0ab7 KS |
1043 | /* Free resources used by a user-defined bitmap. */ |
1044 | ||
1045 | int | |
7a2a85be KS |
1046 | destroy_fringe_bitmap (n) |
1047 | int n; | |
2d05deef | 1048 | { |
2d05deef KS |
1049 | struct fringe_bitmap **fbp; |
1050 | ||
2d05deef KS |
1051 | fringe_faces[n] = FRINGE_FACE_ID; |
1052 | ||
1053 | fbp = &fringe_bitmaps[n]; | |
1054 | if (*fbp && (*fbp)->dynamic) | |
1055 | { | |
e581a466 | 1056 | /* XXX Is SELECTED_FRAME OK here? */ |
04ccca97 | 1057 | struct redisplay_interface *rif = FRAME_RIF (SELECTED_FRAME ()); |
f2be4fd0 | 1058 | if (rif && rif->destroy_fringe_bitmap) |
2d05deef KS |
1059 | rif->destroy_fringe_bitmap (n); |
1060 | xfree (*fbp); | |
1061 | *fbp = NULL; | |
1062 | } | |
1063 | ||
1064 | while (max_used_fringe_bitmap > MAX_STANDARD_FRINGE_BITMAPS | |
1065 | && fringe_bitmaps[max_used_fringe_bitmap - 1] == NULL) | |
1066 | max_used_fringe_bitmap--; | |
7a2a85be KS |
1067 | } |
1068 | ||
2d05deef | 1069 | |
7a2a85be KS |
1070 | DEFUN ("destroy-fringe-bitmap", Fdestroy_fringe_bitmap, Sdestroy_fringe_bitmap, |
1071 | 1, 1, 0, | |
1072 | doc: /* Destroy fringe bitmap BITMAP. | |
1073 | If BITMAP overrides a standard fringe bitmap, the original bitmap is restored. */) | |
1074 | (bitmap) | |
1075 | Lisp_Object bitmap; | |
1076 | { | |
1077 | int n; | |
7a2a85be | 1078 | |
4cce0ab7 KS |
1079 | CHECK_SYMBOL (bitmap); |
1080 | n = lookup_fringe_bitmap (bitmap); | |
1081 | if (!n) | |
7a2a85be KS |
1082 | return Qnil; |
1083 | ||
1084 | destroy_fringe_bitmap (n); | |
2d05deef | 1085 | |
4cce0ab7 | 1086 | if (n >= MAX_STANDARD_FRINGE_BITMAPS) |
7a2a85be | 1087 | { |
4cce0ab7 | 1088 | Vfringe_bitmaps = Fdelq (bitmap, Vfringe_bitmaps); |
7a2a85be | 1089 | /* It would be better to remove the fringe property. */ |
4cce0ab7 | 1090 | Fput (bitmap, Qfringe, Qnil); |
7a2a85be | 1091 | } |
4cce0ab7 | 1092 | |
2d05deef KS |
1093 | return Qnil; |
1094 | } | |
1095 | ||
1096 | ||
1097 | /* Initialize bitmap bit. | |
0881a0fd KS |
1098 | |
1099 | On X, we bit-swap the built-in bitmaps and reduce bitmap | |
1100 | from short to char array if width is <= 8 bits. | |
1101 | ||
bd231131 KS |
1102 | On MAC with big-endian CPU, we need to byte-swap each short. |
1103 | ||
1104 | On W32 and MAC (little endian), there's no need to do this. | |
2d05deef KS |
1105 | */ |
1106 | ||
1107 | void | |
1108 | init_fringe_bitmap (which, fb, once_p) | |
1109 | enum fringe_bitmap_type which; | |
1110 | struct fringe_bitmap *fb; | |
1111 | int once_p; | |
1112 | { | |
1113 | if (once_p || fb->dynamic) | |
1114 | { | |
0881a0fd KS |
1115 | #if defined (HAVE_X_WINDOWS) |
1116 | static unsigned char swap_nibble[16] | |
1117 | = { 0x0, 0x8, 0x4, 0xc, /* 0000 1000 0100 1100 */ | |
1118 | 0x2, 0xa, 0x6, 0xe, /* 0010 1010 0110 1110 */ | |
1119 | 0x1, 0x9, 0x5, 0xd, /* 0001 1001 0101 1101 */ | |
bd231131 | 1120 | 0x3, 0xb, 0x7, 0xf }; /* 0011 1011 0111 1111 */ |
0881a0fd | 1121 | unsigned short *bits = fb->bits; |
2d05deef | 1122 | int j; |
0881a0fd KS |
1123 | |
1124 | if (fb->width <= 8) | |
1125 | { | |
1126 | unsigned char *cbits = (unsigned char *)fb->bits; | |
1127 | for (j = 0; j < fb->height; j++) | |
1128 | { | |
1129 | unsigned short b = *bits++; | |
1130 | unsigned char c; | |
1131 | c = (unsigned char)((swap_nibble[b & 0xf] << 4) | |
1132 | | (swap_nibble[(b>>4) & 0xf])); | |
1133 | *cbits++ = (c >> (8 - fb->width)); | |
1134 | } | |
1135 | } | |
1136 | else | |
2d05deef | 1137 | { |
0881a0fd KS |
1138 | for (j = 0; j < fb->height; j++) |
1139 | { | |
1140 | unsigned short b = *bits; | |
1141 | b = (unsigned short)((swap_nibble[b & 0xf] << 12) | |
1142 | | (swap_nibble[(b>>4) & 0xf] << 8) | |
1143 | | (swap_nibble[(b>>8) & 0xf] << 4) | |
1144 | | (swap_nibble[(b>>12) & 0xf])); | |
1145 | *bits++ = (b >> (16 - fb->width)); | |
1146 | } | |
2d05deef | 1147 | } |
bd231131 KS |
1148 | #endif /* HAVE_X_WINDOWS */ |
1149 | ||
1150 | #if defined (MAC_OS) && defined (WORDS_BIG_ENDIAN) | |
1151 | unsigned short *bits = fb->bits; | |
159c348e | 1152 | int j; |
bd231131 KS |
1153 | for (j = 0; j < fb->height; j++) |
1154 | { | |
1155 | unsigned short b = *bits; | |
1156 | *bits++ = ((b >> 8) & 0xff) | ((b & 0xff) << 8); | |
1157 | } | |
1158 | #endif /* MAC_OS && WORDS_BIG_ENDIAN */ | |
2d05deef KS |
1159 | } |
1160 | ||
1161 | if (!once_p) | |
1162 | { | |
7a2a85be | 1163 | destroy_fringe_bitmap (which); |
2d05deef | 1164 | |
e581a466 | 1165 | /* XXX Is SELECTED_FRAME OK here? */ |
04ccca97 | 1166 | struct redisplay_interface *rif = FRAME_RIF (SELECTED_FRAME ()); |
f2be4fd0 | 1167 | if (rif && rif->define_fringe_bitmap) |
2d05deef KS |
1168 | rif->define_fringe_bitmap (which, fb->bits, fb->height, fb->width); |
1169 | ||
1170 | fringe_bitmaps[which] = fb; | |
1171 | if (which >= max_used_fringe_bitmap) | |
1172 | max_used_fringe_bitmap = which + 1; | |
1173 | } | |
1174 | } | |
1175 | ||
1176 | ||
1177 | DEFUN ("define-fringe-bitmap", Fdefine_fringe_bitmap, Sdefine_fringe_bitmap, | |
7a2a85be KS |
1178 | 2, 5, 0, |
1179 | doc: /* Define fringe bitmap BITMAP from BITS of size HEIGHT x WIDTH. | |
1180 | BITMAP is a symbol or string naming the new fringe bitmap. | |
0881a0fd KS |
1181 | BITS is either a string or a vector of integers. |
1182 | HEIGHT is height of bitmap. If HEIGHT is nil, use length of BITS. | |
1183 | WIDTH must be an integer between 1 and 16, or nil which defaults to 8. | |
7a2a85be | 1184 | Optional fifth arg ALIGN may be one of `top', `center', or `bottom', |
0881a0fd KS |
1185 | indicating the positioning of the bitmap relative to the rows where it |
1186 | is used; the default is to center the bitmap. Fourth arg may also be a | |
1187 | list (ALIGN PERIODIC) where PERIODIC non-nil specifies that the bitmap | |
1188 | should be repeated. | |
7a2a85be KS |
1189 | If BITMAP already exists, the existing definition is replaced. */) |
1190 | (bitmap, bits, height, width, align) | |
1191 | Lisp_Object bitmap, bits, height, width, align; | |
2d05deef KS |
1192 | { |
1193 | Lisp_Object len; | |
1194 | int n, h, i, j; | |
0881a0fd | 1195 | unsigned short *b; |
2d05deef KS |
1196 | struct fringe_bitmap fb, *xfb; |
1197 | int fill1 = 0, fill2 = 0; | |
7a2a85be | 1198 | |
4cce0ab7 | 1199 | CHECK_SYMBOL (bitmap); |
2d05deef KS |
1200 | |
1201 | if (!STRINGP (bits) && !VECTORP (bits)) | |
1202 | bits = wrong_type_argument (Qstringp, bits); | |
1203 | ||
1204 | len = Flength (bits); | |
1205 | ||
1206 | if (NILP (height)) | |
1207 | h = fb.height = XINT (len); | |
1208 | else | |
1209 | { | |
1210 | CHECK_NUMBER (height); | |
1211 | fb.height = min (XINT (height), 255); | |
1212 | if (fb.height > XINT (len)) | |
1213 | { | |
1214 | h = XINT (len); | |
1215 | fill1 = (fb.height - h) / 2; | |
1216 | fill2 = fb.height - h - fill1; | |
1217 | } | |
1218 | } | |
bffe8c26 | 1219 | |
2d05deef KS |
1220 | if (NILP (width)) |
1221 | fb.width = 8; | |
1222 | else | |
1223 | { | |
1224 | CHECK_NUMBER (width); | |
1225 | fb.width = min (XINT (width), 255); | |
1226 | } | |
1227 | ||
1228 | fb.period = 0; | |
1229 | fb.align = ALIGN_BITMAP_CENTER; | |
1230 | ||
1231 | if (CONSP (align)) | |
1232 | { | |
1233 | Lisp_Object period = XCDR (align); | |
1234 | if (CONSP (period)) | |
1235 | { | |
1236 | period = XCAR (period); | |
1237 | if (!NILP (period)) | |
1238 | { | |
1239 | fb.period = fb.height; | |
1240 | fb.height = 255; | |
1241 | } | |
1242 | } | |
1243 | align = XCAR (align); | |
1244 | } | |
1245 | if (EQ (align, Qtop)) | |
1246 | fb.align = ALIGN_BITMAP_TOP; | |
1247 | else if (EQ (align, Qbottom)) | |
1248 | fb.align = ALIGN_BITMAP_BOTTOM; | |
1249 | else if (!NILP (align) && !EQ (align, Qcenter)) | |
1250 | error ("Bad align argument"); | |
1251 | ||
ad67849e | 1252 | n = lookup_fringe_bitmap (bitmap); |
4cce0ab7 | 1253 | if (!n) |
2d05deef | 1254 | { |
ad67849e | 1255 | if (max_used_fringe_bitmap < max_fringe_bitmaps) |
d2f14999 | 1256 | n = max_used_fringe_bitmap++; |
2d05deef KS |
1257 | else |
1258 | { | |
1259 | for (n = MAX_STANDARD_FRINGE_BITMAPS; | |
ad67849e | 1260 | n < max_fringe_bitmaps; |
2d05deef KS |
1261 | n++) |
1262 | if (fringe_bitmaps[n] == NULL) | |
1263 | break; | |
ad67849e KS |
1264 | |
1265 | if (n == max_fringe_bitmaps) | |
1266 | { | |
1267 | if ((max_fringe_bitmaps + 20) > MAX_FRINGE_BITMAPS) | |
1268 | error ("No free fringe bitmap slots"); | |
1269 | ||
1270 | i = max_fringe_bitmaps; | |
1271 | max_fringe_bitmaps += 20; | |
1272 | fringe_bitmaps | |
1273 | = ((struct fringe_bitmap **) | |
1274 | xrealloc (fringe_bitmaps, max_fringe_bitmaps * sizeof (struct fringe_bitmap *))); | |
1275 | fringe_faces | |
1276 | = (unsigned *) xrealloc (fringe_faces, max_fringe_bitmaps * sizeof (unsigned)); | |
1277 | ||
1278 | for (; i < max_fringe_bitmaps; i++) | |
1279 | { | |
1280 | fringe_bitmaps[i] = NULL; | |
1281 | fringe_faces[i] = FRINGE_FACE_ID; | |
1282 | } | |
1283 | } | |
2d05deef | 1284 | } |
7a2a85be | 1285 | |
4cce0ab7 KS |
1286 | Vfringe_bitmaps = Fcons (bitmap, Vfringe_bitmaps); |
1287 | Fput (bitmap, Qfringe, make_number (n)); | |
2d05deef KS |
1288 | } |
1289 | ||
1290 | fb.dynamic = 1; | |
1291 | ||
beaedd56 AS |
1292 | xfb = (struct fringe_bitmap *) xmalloc (sizeof fb |
1293 | + fb.height * BYTES_PER_BITMAP_ROW); | |
1294 | fb.bits = b = (unsigned short *) (xfb + 1); | |
2d05deef KS |
1295 | bzero (b, fb.height); |
1296 | ||
1297 | j = 0; | |
1298 | while (j < fb.height) | |
1299 | { | |
1300 | for (i = 0; i < fill1 && j < fb.height; i++) | |
1301 | b[j++] = 0; | |
e581a466 | 1302 | for (i = 0; i < h && j < fb.height; i++) |
2d05deef KS |
1303 | { |
1304 | Lisp_Object elt = Faref (bits, make_number (i)); | |
1305 | b[j++] = NUMBERP (elt) ? XINT (elt) : 0; | |
1306 | } | |
1307 | for (i = 0; i < fill2 && j < fb.height; i++) | |
1308 | b[j++] = 0; | |
1309 | } | |
1310 | ||
1311 | *xfb = fb; | |
1312 | ||
1313 | init_fringe_bitmap (n, xfb, 0); | |
1314 | ||
4cce0ab7 | 1315 | return bitmap; |
2d05deef KS |
1316 | } |
1317 | ||
1318 | DEFUN ("set-fringe-bitmap-face", Fset_fringe_bitmap_face, Sset_fringe_bitmap_face, | |
1319 | 1, 2, 0, | |
7a2a85be | 1320 | doc: /* Set face for fringe bitmap BITMAP to FACE. |
2d05deef | 1321 | If FACE is nil, reset face to default fringe face. */) |
7a2a85be KS |
1322 | (bitmap, face) |
1323 | Lisp_Object bitmap, face; | |
2d05deef | 1324 | { |
4cce0ab7 | 1325 | int n; |
2d05deef KS |
1326 | int face_id; |
1327 | ||
4cce0ab7 KS |
1328 | CHECK_SYMBOL (bitmap); |
1329 | n = lookup_fringe_bitmap (bitmap); | |
1330 | if (!n) | |
7a2a85be | 1331 | error ("Undefined fringe bitmap"); |
2d05deef KS |
1332 | |
1333 | if (!NILP (face)) | |
1334 | { | |
1335 | face_id = lookup_named_face (SELECTED_FRAME (), face, 'A'); | |
1336 | if (face_id < 0) | |
1337 | error ("No such face"); | |
1338 | } | |
1339 | else | |
1340 | face_id = FRINGE_FACE_ID; | |
1341 | ||
4cce0ab7 | 1342 | fringe_faces[n] = face_id; |
2d05deef KS |
1343 | |
1344 | return Qnil; | |
1345 | } | |
1346 | ||
1347 | DEFUN ("fringe-bitmaps-at-pos", Ffringe_bitmaps_at_pos, Sfringe_bitmaps_at_pos, | |
1348 | 0, 2, 0, | |
bffe8c26 | 1349 | doc: /* Return fringe bitmaps of row containing position POS in window WINDOW. |
2d05deef | 1350 | If WINDOW is nil, use selected window. If POS is nil, use value of point |
d3848fe9 KS |
1351 | in that window. Return value is a list (LEFT RIGHT OV), where LEFT |
1352 | is the symbol for the bitmap in the left fringe (or nil if no bitmap), | |
1353 | RIGHT is similar for the right fringe, and OV is non-nil if there is an | |
1354 | overlay arrow in the left fringe. | |
5797a7a0 | 1355 | Return nil if POS is not visible in WINDOW. */) |
2d05deef | 1356 | (pos, window) |
d30b6b33 | 1357 | Lisp_Object pos, window; |
2d05deef KS |
1358 | { |
1359 | struct window *w; | |
2d05deef KS |
1360 | struct glyph_row *row; |
1361 | int textpos; | |
1362 | ||
1363 | if (NILP (window)) | |
1364 | window = selected_window; | |
1365 | CHECK_WINDOW (window); | |
1366 | w = XWINDOW (window); | |
1367 | ||
1368 | if (!NILP (pos)) | |
1369 | { | |
1370 | CHECK_NUMBER_COERCE_MARKER (pos); | |
1371 | textpos = XINT (pos); | |
1372 | } | |
1373 | else if (w == XWINDOW (selected_window)) | |
1374 | textpos = PT; | |
1375 | else | |
1376 | textpos = XMARKER (w->pointm)->charpos; | |
1377 | ||
1378 | row = MATRIX_FIRST_TEXT_ROW (w->current_matrix); | |
1379 | row = row_containing_pos (w, textpos, row, NULL, 0); | |
1380 | if (row) | |
d3848fe9 KS |
1381 | return list3 (get_fringe_bitmap_name (row->left_fringe_bitmap), |
1382 | get_fringe_bitmap_name (row->right_fringe_bitmap), | |
1383 | (row->overlay_arrow_p ? Qt : Qnil)); | |
2d05deef KS |
1384 | else |
1385 | return Qnil; | |
1386 | } | |
1387 | ||
1388 | ||
1389 | /*********************************************************************** | |
1390 | Initialization | |
1391 | ***********************************************************************/ | |
1392 | ||
1393 | void | |
1394 | syms_of_fringe () | |
1395 | { | |
2d05deef KS |
1396 | defsubr (&Sdestroy_fringe_bitmap); |
1397 | defsubr (&Sdefine_fringe_bitmap); | |
1398 | defsubr (&Sfringe_bitmaps_at_pos); | |
1399 | defsubr (&Sset_fringe_bitmap_face); | |
1400 | ||
1401 | DEFVAR_LISP ("overflow-newline-into-fringe", &Voverflow_newline_into_fringe, | |
1402 | doc: /* *Non-nil means that newline may flow into the right fringe. | |
1403 | This means that display lines which are exactly as wide as the window | |
1404 | (not counting the final newline) will only occupy one screen line, by | |
1405 | showing (or hiding) the final newline in the right fringe; when point | |
1406 | is at the final newline, the cursor is shown in the right fringe. | |
1407 | If nil, also continue lines which are exactly as wide as the window. */); | |
1408 | Voverflow_newline_into_fringe = Qt; | |
1409 | ||
7a2a85be KS |
1410 | DEFVAR_LISP ("fringe-bitmaps", &Vfringe_bitmaps, |
1411 | doc: /* List of fringe bitmap symbols. | |
1412 | You must (require 'fringe) to use fringe bitmap symbols in your programs." */); | |
1413 | Vfringe_bitmaps = Qnil; | |
2d05deef KS |
1414 | } |
1415 | ||
1416 | /* Initialize this module when Emacs starts. */ | |
1417 | ||
1418 | void | |
1419 | init_fringe_once () | |
1420 | { | |
1421 | enum fringe_bitmap_type bt; | |
1422 | ||
1423 | for (bt = NO_FRINGE_BITMAP + 1; bt < MAX_STANDARD_FRINGE_BITMAPS; bt++) | |
1424 | init_fringe_bitmap(bt, &standard_bitmaps[bt], 1); | |
1425 | } | |
1426 | ||
1427 | void | |
1428 | init_fringe () | |
1429 | { | |
1430 | int i; | |
1431 | ||
ad67849e KS |
1432 | max_fringe_bitmaps = MAX_STANDARD_FRINGE_BITMAPS + 20; |
1433 | ||
1434 | fringe_bitmaps | |
1435 | = (struct fringe_bitmap **) xmalloc (max_fringe_bitmaps * sizeof (struct fringe_bitmap *)); | |
1436 | fringe_faces | |
1437 | = (unsigned *) xmalloc (max_fringe_bitmaps * sizeof (unsigned)); | |
1438 | ||
1439 | for (i = 0; i < max_fringe_bitmaps; i++) | |
1440 | { | |
1441 | fringe_bitmaps[i] = NULL; | |
1442 | fringe_faces[i] = FRINGE_FACE_ID; | |
1443 | } | |
2d05deef KS |
1444 | } |
1445 | ||
1446 | #ifdef HAVE_NTGUI | |
1447 | ||
1448 | void | |
1449 | w32_init_fringe () | |
1450 | { | |
1451 | enum fringe_bitmap_type bt; | |
1452 | ||
f2be4fd0 KS |
1453 | if (!rif) |
1454 | return; | |
1455 | ||
2d05deef KS |
1456 | for (bt = NO_FRINGE_BITMAP + 1; bt < MAX_STANDARD_FRINGE_BITMAPS; bt++) |
1457 | { | |
1458 | struct fringe_bitmap *fb = &standard_bitmaps[bt]; | |
1459 | rif->define_fringe_bitmap (bt, fb->bits, fb->height, fb->width); | |
1460 | } | |
1461 | } | |
1462 | ||
1463 | void | |
1464 | w32_reset_fringes () | |
1465 | { | |
1466 | /* Destroy row bitmaps. */ | |
1467 | int bt; | |
bffe8c26 | 1468 | |
f2be4fd0 KS |
1469 | if (!rif) |
1470 | return; | |
1471 | ||
2d05deef KS |
1472 | for (bt = NO_FRINGE_BITMAP + 1; bt < max_used_fringe_bitmap; bt++) |
1473 | rif->destroy_fringe_bitmap (bt); | |
1474 | } | |
1475 | ||
bd231131 | 1476 | #endif /* HAVE_NTGUI */ |
2d05deef KS |
1477 | |
1478 | #endif /* HAVE_WINDOW_SYSTEM */ | |
1479 | ||
429e7e2d MB |
1480 | /* arch-tag: 04596920-43eb-473d-b319-82712338162d |
1481 | (do not change this comment) */ |