Commit | Line | Data |
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2d05deef | 1 | /* Fringe handling (split from xdisp.c). |
0b5538bd | 2 | Copyright (C) 1985, 1986, 1987, 1988, 1993, 1994, 1995, 1997, |
429ab54e GM |
3 | 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, |
4 | 2006, 2007 Free Software Foundation, Inc. | |
2d05deef KS |
5 | |
6 | This file is part of GNU Emacs. | |
7 | ||
8 | GNU Emacs is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
684d6f5b | 10 | the Free Software Foundation; either version 3, or (at your option) |
2d05deef KS |
11 | any later version. |
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 | |
19 | along with GNU Emacs; see the file COPYING. If not, write to | |
4fc5845f LK |
20 | the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
21 | Boston, MA 02110-1301, USA. */ | |
2d05deef KS |
22 | |
23 | #include <config.h> | |
24 | #include <stdio.h> | |
25 | ||
26 | #include "lisp.h" | |
27 | #include "frame.h" | |
28 | #include "window.h" | |
29 | #include "dispextern.h" | |
30 | #include "buffer.h" | |
31 | #include "blockinput.h" | |
e581a466 | 32 | #include "termhooks.h" |
2d05deef KS |
33 | |
34 | #ifdef HAVE_WINDOW_SYSTEM | |
35 | ||
7a2a85be | 36 | extern Lisp_Object Qfringe; |
2d05deef | 37 | extern Lisp_Object Qtop, Qbottom, Qcenter; |
5797a7a0 | 38 | extern Lisp_Object Qup, Qdown, Qleft, Qright; |
2d05deef KS |
39 | |
40 | /* Non-nil means that newline may flow into the right fringe. */ | |
41 | ||
42 | Lisp_Object Voverflow_newline_into_fringe; | |
43 | ||
7a2a85be KS |
44 | /* List of known fringe bitmap symbols. |
45 | ||
46 | The fringe bitmap number is stored in the `fringe' property on | |
47 | those symbols. Names for the built-in bitmaps are installed by | |
48 | loading fringe.el. | |
49 | */ | |
50 | ||
51 | Lisp_Object Vfringe_bitmaps; | |
2d05deef | 52 | |
7840b332 KS |
53 | /* Fringe bitmaps are represented in three different ways: |
54 | ||
55 | Logical bitmaps are used internally to denote things like | |
56 | 'end-of-buffer', 'left-truncation', 'overlay-arrow', etc. | |
57 | ||
58 | Physical bitmaps specify the visual appearence of the bitmap, | |
59 | e.g. 'bottom-left-angle', 'left-arrow', 'left-triangle', etc. | |
60 | User defined bitmaps are physical bitmaps. | |
61 | ||
62 | Internally, fringe bitmaps for a specific display row are | |
63 | represented as a simple integer that is used as an index | |
64 | into the table of all defined bitmaps. This index is stored | |
65 | in the `fringe' property of the physical bitmap symbol. | |
66 | ||
67 | Logical bitmaps are mapped to physical bitmaps through the | |
68 | buffer-local `fringe-indicator-alist' variable. | |
69 | ||
70 | Each element of this alist is a cons (LOGICAL . PHYSICAL) | |
71 | mapping a logical bitmap to a physical bitmap. | |
72 | PHYSICAL is either a symbol to use in both left and right fringe, | |
73 | or a cons of two symbols (LEFT . RIGHT) denoting different | |
74 | bitmaps to use in left and right fringe. | |
75 | ||
76 | LOGICAL is first looked up in the window's buffer's buffer-local | |
77 | value of the fringe-indicator-alist variable, and if not present, | |
78 | in the global value of fringe-indicator-alist. | |
79 | ||
80 | If LOGICAL is not present in either alist, or the PHYSICAL value | |
81 | found is nil, no bitmap is shown for the logical bitmap. | |
82 | ||
83 | The `left-fringe' and `right-fringe' display properties | |
84 | must specify physical bitmap symbols. | |
85 | */ | |
86 | ||
87 | extern Lisp_Object Qunknown; | |
88 | Lisp_Object Qtruncation, Qcontinuation, Qoverlay_arrow; | |
89 | Lisp_Object Qempty_line, Qtop_bottom; | |
90 | extern Lisp_Object Qbar, Qhbar, Qbox, Qhollow; | |
91 | Lisp_Object Qhollow_small; | |
2d05deef KS |
92 | |
93 | enum fringe_bitmap_align | |
94 | { | |
95 | ALIGN_BITMAP_CENTER = 0, | |
96 | ALIGN_BITMAP_TOP, | |
97 | ALIGN_BITMAP_BOTTOM | |
98 | }; | |
99 | ||
100 | struct fringe_bitmap | |
101 | { | |
0881a0fd | 102 | unsigned short *bits; |
2d05deef KS |
103 | unsigned height : 8; |
104 | unsigned width : 8; | |
105 | unsigned period : 8; | |
106 | unsigned align : 2; | |
107 | unsigned dynamic : 1; | |
108 | }; | |
109 | ||
110 | \f | |
111 | /*********************************************************************** | |
112 | Fringe bitmaps | |
113 | ***********************************************************************/ | |
114 | ||
115 | /* Undefined bitmap. A question mark. */ | |
116 | /* | |
117 | ..xxxx.. | |
118 | .xxxxxx. | |
119 | xx....xx | |
120 | xx....xx | |
121 | ....xx.. | |
122 | ...xx... | |
123 | ...xx... | |
124 | ........ | |
125 | ...xx... | |
126 | ...xx... | |
127 | */ | |
7840b332 | 128 | static unsigned short question_mark_bits[] = { |
2d05deef KS |
129 | 0x3c, 0x7e, 0x7e, 0x0c, 0x18, 0x18, 0x00, 0x18, 0x18}; |
130 | ||
131 | /* An arrow like this: `<-'. */ | |
132 | /* | |
133 | ...xx... | |
134 | ..xx.... | |
135 | .xx..... | |
136 | xxxxxx.. | |
137 | xxxxxx.. | |
138 | .xx..... | |
139 | ..xx.... | |
140 | ...xx... | |
141 | */ | |
0881a0fd | 142 | static unsigned short left_arrow_bits[] = { |
2d05deef KS |
143 | 0x18, 0x30, 0x60, 0xfc, 0xfc, 0x60, 0x30, 0x18}; |
144 | ||
145 | ||
146 | /* Right truncation arrow bitmap `->'. */ | |
147 | /* | |
148 | ...xx... | |
149 | ....xx.. | |
150 | .....xx. | |
151 | ..xxxxxx | |
152 | ..xxxxxx | |
153 | .....xx. | |
154 | ....xx.. | |
155 | ...xx... | |
156 | */ | |
0881a0fd | 157 | static unsigned short right_arrow_bits[] = { |
2d05deef KS |
158 | 0x18, 0x0c, 0x06, 0x3f, 0x3f, 0x06, 0x0c, 0x18}; |
159 | ||
160 | ||
161 | /* Up arrow bitmap. */ | |
162 | /* | |
163 | ...xx... | |
164 | ..xxxx.. | |
165 | .xxxxxx. | |
166 | xxxxxxxx | |
167 | ...xx... | |
168 | ...xx... | |
169 | ...xx... | |
170 | ...xx... | |
171 | */ | |
0881a0fd | 172 | static unsigned short up_arrow_bits[] = { |
2d05deef KS |
173 | 0x18, 0x3c, 0x7e, 0xff, 0x18, 0x18, 0x18, 0x18}; |
174 | ||
175 | ||
176 | /* Down arrow bitmap. */ | |
177 | /* | |
178 | ...xx... | |
179 | ...xx... | |
180 | ...xx... | |
181 | ...xx... | |
182 | xxxxxxxx | |
183 | .xxxxxx. | |
184 | ..xxxx.. | |
185 | ...xx... | |
186 | */ | |
0881a0fd | 187 | static unsigned short down_arrow_bits[] = { |
2d05deef KS |
188 | 0x18, 0x18, 0x18, 0x18, 0xff, 0x7e, 0x3c, 0x18}; |
189 | ||
2d05deef KS |
190 | /* Marker for continuation lines. */ |
191 | /* | |
192 | ..xxxx.. | |
193 | .xxxxx.. | |
194 | xx...... | |
195 | xxx..x.. | |
196 | xxxxxx.. | |
197 | .xxxxx.. | |
198 | ..xxxx.. | |
199 | .xxxxx.. | |
200 | */ | |
7840b332 | 201 | static unsigned short left_curly_arrow_bits[] = { |
2d05deef KS |
202 | 0x3c, 0x7c, 0xc0, 0xe4, 0xfc, 0x7c, 0x3c, 0x7c}; |
203 | ||
7840b332 | 204 | /* Marker for continued lines. */ |
2d05deef | 205 | /* |
7840b332 KS |
206 | ..xxxx.. |
207 | ..xxxxx. | |
208 | ......xx | |
209 | ..x..xxx | |
210 | ..xxxxxx | |
211 | ..xxxxx. | |
212 | ..xxxx.. | |
213 | ..xxxxx. | |
2d05deef | 214 | */ |
7840b332 KS |
215 | static unsigned short right_curly_arrow_bits[] = { |
216 | 0x3c, 0x3e, 0x03, 0x27, 0x3f, 0x3e, 0x3c, 0x3e}; | |
2d05deef | 217 | |
2d05deef KS |
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 | */ | |
7840b332 | 229 | static unsigned short left_triangle_bits[] = { |
2d05deef | 230 | 0x03, 0x0f, 0x1f, 0x3f, 0x3f, 0x1f, 0x0f, 0x03}; |
7840b332 KS |
231 | |
232 | /* Overlay arrow bitmap. A triangular arrow. */ | |
233 | /* | |
234 | xx...... | |
235 | xxxx.... | |
236 | xxxxx... | |
237 | xxxxxx.. | |
238 | xxxxxx.. | |
239 | xxxxx... | |
240 | xxxx.... | |
241 | xx...... | |
242 | */ | |
243 | static unsigned short right_triangle_bits[] = { | |
244 | 0xc0, 0xf0, 0xf8, 0xfc, 0xfc, 0xf8, 0xf0, 0xc0}; | |
2d05deef KS |
245 | |
246 | /* First line bitmap. An top-left angle. */ | |
247 | /* | |
248 | xxxxxx.. | |
249 | xxxxxx.. | |
250 | xx...... | |
251 | xx...... | |
252 | xx...... | |
253 | xx...... | |
254 | xx...... | |
255 | ........ | |
256 | */ | |
0881a0fd | 257 | static unsigned short top_left_angle_bits[] = { |
2d05deef KS |
258 | 0xfc, 0xfc, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0x00}; |
259 | ||
260 | /* First line bitmap. An right-up angle. */ | |
261 | /* | |
262 | ..xxxxxx | |
263 | ..xxxxxx | |
264 | ......xx | |
265 | ......xx | |
266 | ......xx | |
267 | ......xx | |
268 | ......xx | |
269 | ........ | |
270 | */ | |
0881a0fd | 271 | static unsigned short top_right_angle_bits[] = { |
2d05deef KS |
272 | 0x3f, 0x3f, 0x03, 0x03, 0x03, 0x03, 0x03, 0x00}; |
273 | ||
274 | /* Last line bitmap. An left-down angle. */ | |
275 | /* | |
276 | ........ | |
277 | xx...... | |
278 | xx...... | |
279 | xx...... | |
280 | xx...... | |
281 | xx...... | |
282 | xxxxxx.. | |
283 | xxxxxx.. | |
284 | */ | |
0881a0fd | 285 | static unsigned short bottom_left_angle_bits[] = { |
2d05deef KS |
286 | 0x00, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xfc, 0xfc}; |
287 | ||
288 | /* Last line bitmap. An right-down angle. */ | |
289 | /* | |
290 | ........ | |
291 | ......xx | |
292 | ......xx | |
293 | ......xx | |
294 | ......xx | |
295 | ......xx | |
296 | ..xxxxxx | |
297 | ..xxxxxx | |
298 | */ | |
0881a0fd | 299 | static unsigned short bottom_right_angle_bits[] = { |
2d05deef KS |
300 | 0x00, 0x03, 0x03, 0x03, 0x03, 0x03, 0x3f, 0x3f}; |
301 | ||
302 | /* First/last line bitmap. An left bracket. */ | |
303 | /* | |
304 | xxxxxx.. | |
305 | xxxxxx.. | |
306 | xx...... | |
307 | xx...... | |
308 | xx...... | |
309 | xx...... | |
310 | xx...... | |
311 | xx...... | |
312 | xxxxxx.. | |
313 | xxxxxx.. | |
314 | */ | |
0881a0fd | 315 | static unsigned short left_bracket_bits[] = { |
2d05deef KS |
316 | 0xfc, 0xfc, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xfc, 0xfc}; |
317 | ||
318 | /* First/last line bitmap. An right bracket. */ | |
319 | /* | |
320 | ..xxxxxx | |
321 | ..xxxxxx | |
322 | ......xx | |
323 | ......xx | |
324 | ......xx | |
325 | ......xx | |
326 | ......xx | |
327 | ......xx | |
328 | ..xxxxxx | |
329 | ..xxxxxx | |
330 | */ | |
0881a0fd | 331 | static unsigned short right_bracket_bits[] = { |
2d05deef KS |
332 | 0x3f, 0x3f, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x3f, 0x3f}; |
333 | ||
334 | /* Filled box cursor bitmap. A filled box; max 13 pixels high. */ | |
335 | /* | |
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 | xxxxxxx. | |
349 | */ | |
7840b332 | 350 | static unsigned short filled_rectangle_bits[] = { |
2d05deef KS |
351 | 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe}; |
352 | ||
353 | /* Hollow box cursor bitmap. A hollow box; max 13 pixels high. */ | |
354 | /* | |
355 | xxxxxxx. | |
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 | x.....x. | |
367 | xxxxxxx. | |
368 | */ | |
7840b332 | 369 | static unsigned short hollow_rectangle_bits[] = { |
2d05deef KS |
370 | 0xfe, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0xfe}; |
371 | ||
7840b332 KS |
372 | /* Hollow square bitmap. */ |
373 | /* | |
374 | .xxxxxx. | |
375 | .x....x. | |
376 | .x....x. | |
377 | .x....x. | |
378 | .x....x. | |
379 | .xxxxxx. | |
380 | */ | |
381 | static unsigned short hollow_square_bits[] = { | |
382 | 0x7e, 0x42, 0x42, 0x42, 0x42, 0x7e}; | |
383 | ||
384 | /* Filled square bitmap. */ | |
385 | /* | |
386 | .xxxxxx. | |
387 | .xxxxxx. | |
388 | .xxxxxx. | |
389 | .xxxxxx. | |
390 | .xxxxxx. | |
391 | .xxxxxx. | |
392 | */ | |
393 | static unsigned short filled_square_bits[] = { | |
394 | 0x7e, 0x7e, 0x7e, 0x7e, 0x7e, 0x7e}; | |
395 | ||
2d05deef KS |
396 | /* Bar cursor bitmap. A vertical bar; max 13 pixels high. */ |
397 | /* | |
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 | xx...... | |
411 | */ | |
7840b332 | 412 | static unsigned short vertical_bar_bits[] = { |
2d05deef KS |
413 | 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0}; |
414 | ||
68a33afa | 415 | /* HBar cursor bitmap. A horizontal bar; 2 pixels high. */ |
2d05deef KS |
416 | /* |
417 | xxxxxxx. | |
418 | xxxxxxx. | |
419 | */ | |
68a33afa | 420 | static unsigned short horizontal_bar_bits[] = { |
2d05deef KS |
421 | 0xfe, 0xfe}; |
422 | ||
423 | ||
424 | /* Bitmap drawn to indicate lines not displaying text if | |
425 | `indicate-empty-lines' is non-nil. */ | |
426 | /* | |
427 | ........ | |
428 | ..xxxx.. | |
429 | ........ | |
430 | ........ | |
431 | ..xxxx.. | |
432 | ........ | |
433 | */ | |
7840b332 | 434 | static unsigned short empty_line_bits[] = { |
2d05deef KS |
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 | 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00}; | |
443 | ||
2d05deef | 444 | |
0881a0fd KS |
445 | #define BYTES_PER_BITMAP_ROW (sizeof (unsigned short)) |
446 | #define STANDARD_BITMAP_HEIGHT(bits) (sizeof (bits)/BYTES_PER_BITMAP_ROW) | |
447 | #define FRBITS(bits) bits, STANDARD_BITMAP_HEIGHT (bits) | |
2d05deef | 448 | |
7840b332 KS |
449 | /* NOTE: The order of these bitmaps must match the sequence |
450 | used in fringe.el to define the corresponding symbols. */ | |
451 | ||
452 | struct fringe_bitmap standard_bitmaps[] = | |
2d05deef KS |
453 | { |
454 | { NULL, 0, 0, 0, 0, 0 }, /* NO_FRINGE_BITMAP */ | |
7840b332 | 455 | { FRBITS (question_mark_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, |
2d05deef KS |
456 | { FRBITS (left_arrow_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, |
457 | { FRBITS (right_arrow_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, | |
458 | { FRBITS (up_arrow_bits), 8, 0, ALIGN_BITMAP_TOP, 0 }, | |
459 | { FRBITS (down_arrow_bits), 8, 0, ALIGN_BITMAP_BOTTOM, 0 }, | |
7840b332 KS |
460 | { FRBITS (left_curly_arrow_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, |
461 | { FRBITS (right_curly_arrow_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, | |
462 | { FRBITS (left_triangle_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, | |
463 | { FRBITS (right_triangle_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, | |
2d05deef KS |
464 | { FRBITS (top_left_angle_bits), 8, 0, ALIGN_BITMAP_TOP, 0 }, |
465 | { FRBITS (top_right_angle_bits), 8, 0, ALIGN_BITMAP_TOP, 0 }, | |
466 | { FRBITS (bottom_left_angle_bits), 8, 0, ALIGN_BITMAP_BOTTOM, 0 }, | |
467 | { FRBITS (bottom_right_angle_bits), 8, 0, ALIGN_BITMAP_BOTTOM, 0 }, | |
468 | { FRBITS (left_bracket_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, | |
469 | { FRBITS (right_bracket_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, | |
7840b332 KS |
470 | { FRBITS (filled_rectangle_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, |
471 | { FRBITS (hollow_rectangle_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, | |
472 | { FRBITS (filled_square_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, | |
2d05deef | 473 | { FRBITS (hollow_square_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, |
7840b332 | 474 | { FRBITS (vertical_bar_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, |
68a33afa | 475 | { FRBITS (horizontal_bar_bits), 8, 0, ALIGN_BITMAP_BOTTOM, 0 }, |
7840b332 | 476 | { FRBITS (empty_line_bits), 8, 3, ALIGN_BITMAP_TOP, 0 }, |
2d05deef KS |
477 | }; |
478 | ||
7840b332 KS |
479 | #define NO_FRINGE_BITMAP 0 |
480 | #define UNDEF_FRINGE_BITMAP 1 | |
481 | #define MAX_STANDARD_FRINGE_BITMAPS (sizeof(standard_bitmaps)/sizeof(standard_bitmaps[0])) | |
482 | ||
ad67849e | 483 | static struct fringe_bitmap **fringe_bitmaps; |
49ce2dbd | 484 | static Lisp_Object *fringe_faces; |
ad67849e | 485 | static int max_fringe_bitmaps; |
2d05deef KS |
486 | |
487 | static int max_used_fringe_bitmap = MAX_STANDARD_FRINGE_BITMAPS; | |
488 | ||
4cce0ab7 KS |
489 | |
490 | /* Lookup bitmap number for symbol BITMAP. | |
491 | Return 0 if not a bitmap. */ | |
2d05deef KS |
492 | |
493 | int | |
4cce0ab7 | 494 | lookup_fringe_bitmap (bitmap) |
7a2a85be KS |
495 | Lisp_Object bitmap; |
496 | { | |
497 | int bn; | |
498 | ||
4cce0ab7 | 499 | bitmap = Fget (bitmap, Qfringe); |
7a2a85be KS |
500 | if (!INTEGERP (bitmap)) |
501 | return 0; | |
502 | ||
503 | bn = XINT (bitmap); | |
4cce0ab7 KS |
504 | if (bn > NO_FRINGE_BITMAP |
505 | && bn < max_used_fringe_bitmap | |
506 | && (bn < MAX_STANDARD_FRINGE_BITMAPS | |
507 | || fringe_bitmaps[bn] != NULL)) | |
508 | return bn; | |
509 | ||
510 | return 0; | |
7a2a85be KS |
511 | } |
512 | ||
513 | /* Get fringe bitmap name for bitmap number BN. | |
514 | ||
515 | Found by traversing Vfringe_bitmaps comparing BN to the | |
516 | fringe property for each symbol. | |
517 | ||
518 | Return BN if not found in Vfringe_bitmaps. */ | |
519 | ||
520 | static Lisp_Object | |
521 | get_fringe_bitmap_name (bn) | |
522 | int bn; | |
523 | { | |
524 | Lisp_Object bitmaps; | |
525 | Lisp_Object num; | |
526 | ||
527 | /* Zero means no bitmap -- return nil. */ | |
528 | if (bn <= 0) | |
529 | return Qnil; | |
530 | ||
531 | bitmaps = Vfringe_bitmaps; | |
532 | num = make_number (bn); | |
533 | ||
534 | while (CONSP (bitmaps)) | |
535 | { | |
536 | Lisp_Object bitmap = XCAR (bitmaps); | |
537 | if (EQ (num, Fget (bitmap, Qfringe))) | |
538 | return bitmap; | |
539 | bitmaps = XCDR (bitmaps); | |
540 | } | |
541 | ||
542 | return num; | |
543 | } | |
544 | ||
545 | ||
2d05deef KS |
546 | /* Draw the bitmap WHICH in one of the left or right fringes of |
547 | window W. ROW is the glyph row for which to display the bitmap; it | |
548 | determines the vertical position at which the bitmap has to be | |
549 | drawn. | |
550 | LEFT_P is 1 for left fringe, 0 for right fringe. | |
551 | */ | |
552 | ||
7840b332 | 553 | static void |
2d05deef KS |
554 | draw_fringe_bitmap_1 (w, row, left_p, overlay, which) |
555 | struct window *w; | |
556 | struct glyph_row *row; | |
557 | int left_p, overlay; | |
7840b332 | 558 | int which; |
2d05deef KS |
559 | { |
560 | struct frame *f = XFRAME (WINDOW_FRAME (w)); | |
561 | struct draw_fringe_bitmap_params p; | |
562 | struct fringe_bitmap *fb; | |
563 | int period; | |
564 | int face_id = DEFAULT_FACE_ID; | |
565 | ||
566 | p.cursor_p = 0; | |
567 | p.overlay_p = (overlay & 1) == 1; | |
568 | p.cursor_p = (overlay & 2) == 2; | |
569 | ||
570 | if (which != NO_FRINGE_BITMAP) | |
571 | { | |
572 | } | |
573 | else if (left_p) | |
574 | { | |
575 | which = row->left_fringe_bitmap; | |
576 | face_id = row->left_fringe_face_id; | |
577 | } | |
578 | else | |
579 | { | |
580 | which = row->right_fringe_bitmap; | |
581 | face_id = row->right_fringe_face_id; | |
582 | } | |
583 | ||
584 | if (face_id == DEFAULT_FACE_ID) | |
49ce2dbd KS |
585 | { |
586 | Lisp_Object face; | |
587 | ||
588 | if ((face = fringe_faces[which], NILP (face)) | |
308785c1 KS |
589 | || (face_id = lookup_derived_face (f, face, 'A', FRINGE_FACE_ID, 0), |
590 | face_id < 0)) | |
49ce2dbd KS |
591 | face_id = FRINGE_FACE_ID; |
592 | } | |
2d05deef KS |
593 | |
594 | fb = fringe_bitmaps[which]; | |
595 | if (fb == NULL) | |
596 | fb = &standard_bitmaps[which < MAX_STANDARD_FRINGE_BITMAPS | |
597 | ? which : UNDEF_FRINGE_BITMAP]; | |
598 | ||
599 | period = fb->period; | |
600 | ||
601 | /* Convert row to frame coordinates. */ | |
602 | p.y = WINDOW_TO_FRAME_PIXEL_Y (w, row->y); | |
603 | ||
604 | p.which = which; | |
605 | p.bits = fb->bits; | |
606 | p.wd = fb->width; | |
607 | ||
608 | p.h = fb->height; | |
609 | p.dh = (period > 0 ? (p.y % period) : 0); | |
610 | p.h -= p.dh; | |
611 | /* Clip bitmap if too high. */ | |
612 | if (p.h > row->height) | |
613 | p.h = row->height; | |
614 | ||
615 | p.face = FACE_FROM_ID (f, face_id); | |
616 | ||
617 | if (p.face == NULL) | |
618 | { | |
49ce2dbd KS |
619 | /* This could happen after clearing face cache. |
620 | But it shouldn't happen anymore. ++kfs */ | |
2d05deef KS |
621 | return; |
622 | } | |
623 | ||
624 | PREPARE_FACE_FOR_DISPLAY (f, p.face); | |
625 | ||
626 | /* Clear left fringe if no bitmap to draw or if bitmap doesn't fill | |
627 | the fringe. */ | |
628 | p.bx = -1; | |
629 | if (left_p) | |
630 | { | |
631 | int wd = WINDOW_LEFT_FRINGE_WIDTH (w); | |
632 | int x = window_box_left (w, (WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w) | |
633 | ? LEFT_MARGIN_AREA | |
634 | : TEXT_AREA)); | |
635 | if (p.wd > wd) | |
636 | p.wd = wd; | |
637 | p.x = x - p.wd - (wd - p.wd) / 2; | |
638 | ||
639 | if (p.wd < wd || row->height > p.h) | |
640 | { | |
641 | /* If W has a vertical border to its left, don't draw over it. */ | |
642 | wd -= ((!WINDOW_LEFTMOST_P (w) | |
643 | && !WINDOW_HAS_VERTICAL_SCROLL_BAR (w)) | |
644 | ? 1 : 0); | |
645 | p.bx = x - wd; | |
646 | p.nx = wd; | |
647 | } | |
648 | } | |
649 | else | |
650 | { | |
651 | int x = window_box_right (w, | |
652 | (WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w) | |
653 | ? RIGHT_MARGIN_AREA | |
654 | : TEXT_AREA)); | |
655 | int wd = WINDOW_RIGHT_FRINGE_WIDTH (w); | |
656 | if (p.wd > wd) | |
657 | p.wd = wd; | |
658 | p.x = x + (wd - p.wd) / 2; | |
659 | /* Clear right fringe if no bitmap to draw of if bitmap doesn't fill | |
660 | the fringe. */ | |
661 | if (p.wd < wd || row->height > p.h) | |
662 | { | |
663 | p.bx = x; | |
664 | p.nx = wd; | |
665 | } | |
666 | } | |
667 | ||
668 | if (p.bx >= 0) | |
669 | { | |
670 | int header_line_height = WINDOW_HEADER_LINE_HEIGHT (w); | |
671 | ||
672 | p.by = WINDOW_TO_FRAME_PIXEL_Y (w, max (header_line_height, row->y)); | |
673 | p.ny = row->visible_height; | |
674 | } | |
675 | ||
676 | /* Adjust y to the offset in the row to start drawing the bitmap. */ | |
677 | switch (fb->align) | |
678 | { | |
679 | case ALIGN_BITMAP_CENTER: | |
680 | p.y += (row->height - p.h) / 2; | |
681 | break; | |
682 | case ALIGN_BITMAP_BOTTOM: | |
683 | p.h = fb->height; | |
684 | p.y += (row->visible_height - p.h); | |
685 | break; | |
686 | case ALIGN_BITMAP_TOP: | |
687 | break; | |
688 | } | |
689 | ||
e581a466 | 690 | FRAME_RIF (f)->draw_fringe_bitmap (w, row, &p); |
2d05deef KS |
691 | } |
692 | ||
7840b332 KS |
693 | static int |
694 | get_logical_cursor_bitmap (w, cursor) | |
695 | struct window *w; | |
696 | Lisp_Object cursor; | |
697 | { | |
698 | Lisp_Object cmap, bm = Qnil; | |
699 | ||
700 | if ((cmap = XBUFFER (w->buffer)->fringe_cursor_alist), !NILP (cmap)) | |
701 | { | |
702 | bm = Fassq (cursor, cmap); | |
703 | if (CONSP (bm)) | |
704 | { | |
705 | if ((bm = XCDR (bm)), NILP (bm)) | |
706 | return NO_FRINGE_BITMAP; | |
707 | return lookup_fringe_bitmap (bm); | |
708 | } | |
709 | } | |
710 | if (EQ (cmap, buffer_defaults.fringe_cursor_alist)) | |
711 | return NO_FRINGE_BITMAP; | |
712 | bm = Fassq (cursor, buffer_defaults.fringe_cursor_alist); | |
713 | if (!CONSP (bm) || ((bm = XCDR (bm)), NILP (bm))) | |
714 | return NO_FRINGE_BITMAP; | |
715 | return lookup_fringe_bitmap (bm); | |
716 | } | |
717 | ||
718 | static int | |
719 | get_logical_fringe_bitmap (w, bitmap, right_p, partial_p) | |
720 | struct window *w; | |
721 | Lisp_Object bitmap; | |
722 | int right_p, partial_p; | |
723 | { | |
724 | Lisp_Object cmap, bm1 = Qnil, bm2 = Qnil, bm; | |
725 | int ln1 = 0, ln2 = 0; | |
726 | int ix1 = right_p; | |
727 | int ix2 = ix1 + (partial_p ? 2 : 0); | |
728 | ||
729 | /* Lookup in buffer-local fringe-indicator-alist before global alist. | |
730 | ||
731 | Elements are: | |
732 | BITMAP -- use for all | |
733 | (L R) -- use for left right (whether partial or not) | |
734 | (L R PL PR) -- use for left rigth partial-left partial-right | |
735 | If any value in local binding is not present or t, use global value. | |
736 | ||
737 | If partial, lookup partial bitmap in default value if not found here. | |
738 | If not partial, or no partial spec is present, use non-partial bitmap. */ | |
739 | ||
740 | if ((cmap = XBUFFER (w->buffer)->fringe_indicator_alist), !NILP (cmap)) | |
741 | { | |
742 | bm1 = Fassq (bitmap, cmap); | |
743 | if (CONSP (bm1)) | |
744 | { | |
745 | if ((bm1 = XCDR (bm1)), NILP (bm1)) | |
746 | return NO_FRINGE_BITMAP; | |
747 | if (CONSP (bm1)) | |
748 | { | |
749 | ln1 = XINT (Flength (bm1)); | |
750 | if (partial_p) | |
751 | { | |
752 | if (ln1 > ix2) | |
753 | { | |
754 | bm = Fnth (make_number (ix2), bm1); | |
755 | if (!EQ (bm, Qt)) | |
756 | goto found; | |
757 | } | |
758 | } | |
759 | else | |
760 | { | |
761 | if (ln1 > ix1) | |
762 | { | |
763 | bm = Fnth (make_number (ix1), bm1); | |
764 | if (!EQ (bm, Qt)) | |
765 | goto found; | |
766 | } | |
767 | } | |
768 | } | |
769 | else if ((bm = bm1, !EQ (bm, Qt))) | |
770 | goto found; | |
771 | } | |
772 | } | |
773 | ||
774 | if (!EQ (cmap, buffer_defaults.fringe_indicator_alist) | |
775 | && !NILP (buffer_defaults.fringe_indicator_alist)) | |
776 | { | |
777 | bm2 = Fassq (bitmap, buffer_defaults.fringe_indicator_alist); | |
778 | if (CONSP (bm2)) | |
779 | { | |
780 | if ((bm2 = XCDR (bm2)), !NILP (bm2)) | |
781 | { | |
782 | if (CONSP (bm2)) | |
783 | { | |
784 | ln2 = XINT (Flength (bm2)); | |
785 | if (partial_p) | |
786 | { | |
787 | if (ln2 > ix2) | |
788 | { | |
789 | bm = Fnth (make_number (ix2), bm2); | |
790 | if (!EQ (bm, Qt)) | |
791 | goto found; | |
792 | } | |
793 | } | |
794 | } | |
795 | } | |
796 | } | |
797 | } | |
798 | ||
799 | if (ln1 > ix1) | |
800 | { | |
801 | bm = Fnth (make_number (ix1), bm1); | |
802 | if (!EQ (bm, Qt)) | |
803 | goto found; | |
804 | } | |
805 | ||
806 | if (ln2 > ix1) | |
807 | { | |
808 | bm = Fnth (make_number (ix1), bm2); | |
809 | if (!EQ (bm, Qt)) | |
810 | goto found; | |
811 | return NO_FRINGE_BITMAP; | |
812 | } | |
813 | else if ((bm = bm2, NILP (bm))) | |
814 | return NO_FRINGE_BITMAP; | |
815 | ||
816 | found: | |
817 | return lookup_fringe_bitmap (bm); | |
818 | } | |
819 | ||
820 | ||
2d05deef KS |
821 | void |
822 | draw_fringe_bitmap (w, row, left_p) | |
823 | struct window *w; | |
824 | struct glyph_row *row; | |
825 | int left_p; | |
826 | { | |
827 | int overlay = 0; | |
828 | ||
829 | if (!left_p && row->cursor_in_fringe_p) | |
830 | { | |
7840b332 | 831 | Lisp_Object cursor = Qnil; |
2d05deef KS |
832 | |
833 | switch (w->phys_cursor_type) | |
834 | { | |
835 | case HOLLOW_BOX_CURSOR: | |
7840b332 KS |
836 | if (row->visible_height >= STANDARD_BITMAP_HEIGHT (hollow_rectangle_bits)) |
837 | cursor = Qhollow; | |
2d05deef | 838 | else |
7840b332 | 839 | cursor = Qhollow_small; |
2d05deef KS |
840 | break; |
841 | case FILLED_BOX_CURSOR: | |
7840b332 | 842 | cursor = Qbox; |
2d05deef KS |
843 | break; |
844 | case BAR_CURSOR: | |
7840b332 | 845 | cursor = Qbar; |
2d05deef KS |
846 | break; |
847 | case HBAR_CURSOR: | |
7840b332 | 848 | cursor = Qhbar; |
2d05deef KS |
849 | break; |
850 | case NO_CURSOR: | |
851 | default: | |
852 | w->phys_cursor_on_p = 0; | |
853 | row->cursor_in_fringe_p = 0; | |
854 | break; | |
855 | } | |
7840b332 | 856 | if (!NILP (cursor)) |
2d05deef | 857 | { |
7840b332 KS |
858 | int bm = get_logical_cursor_bitmap (w, cursor); |
859 | if (bm != NO_FRINGE_BITMAP) | |
860 | { | |
861 | draw_fringe_bitmap_1 (w, row, 0, 2, bm); | |
862 | overlay = EQ (cursor, Qbox) ? 3 : 1; | |
863 | } | |
2d05deef KS |
864 | } |
865 | } | |
866 | ||
867 | draw_fringe_bitmap_1 (w, row, left_p, overlay, NO_FRINGE_BITMAP); | |
868 | ||
a8b34fae | 869 | if (left_p && row->overlay_arrow_bitmap != NO_FRINGE_BITMAP) |
7dfa5c49 | 870 | draw_fringe_bitmap_1 (w, row, 1, 1, row->overlay_arrow_bitmap); |
2d05deef KS |
871 | } |
872 | ||
873 | ||
874 | /* Draw fringe bitmaps for glyph row ROW on window W. Call this | |
875 | function with input blocked. */ | |
876 | ||
877 | void | |
878 | draw_row_fringe_bitmaps (w, row) | |
879 | struct window *w; | |
880 | struct glyph_row *row; | |
881 | { | |
882 | xassert (interrupt_input_blocked); | |
883 | ||
884 | /* If row is completely invisible, because of vscrolling, we | |
885 | don't have to draw anything. */ | |
886 | if (row->visible_height <= 0) | |
887 | return; | |
888 | ||
889 | if (WINDOW_LEFT_FRINGE_WIDTH (w) != 0) | |
890 | draw_fringe_bitmap (w, row, 1); | |
891 | ||
892 | if (WINDOW_RIGHT_FRINGE_WIDTH (w) != 0) | |
893 | draw_fringe_bitmap (w, row, 0); | |
894 | } | |
895 | ||
896 | /* Draw the fringes of window W. Only fringes for rows marked for | |
11491cbb | 897 | update in redraw_fringe_bitmaps_p are drawn. |
2d05deef | 898 | |
11491cbb KS |
899 | Return >0 if left or right fringe was redrawn in any way. |
900 | ||
901 | If NO_FRINGE is non-zero, also return >0 if either fringe has zero width. | |
902 | ||
903 | A return value >0 indicates that the vertical line between windows | |
904 | needs update (as it may be drawn in the fringe). | |
905 | */ | |
906 | ||
907 | int | |
908 | draw_window_fringes (w, no_fringe) | |
2d05deef | 909 | struct window *w; |
11491cbb | 910 | int no_fringe; |
2d05deef KS |
911 | { |
912 | struct glyph_row *row; | |
913 | int yb = window_text_bottom_y (w); | |
914 | int nrows = w->current_matrix->nrows; | |
915 | int y = 0, rn; | |
11491cbb | 916 | int updated = 0; |
2d05deef KS |
917 | |
918 | if (w->pseudo_window_p) | |
11491cbb KS |
919 | return 0; |
920 | ||
921 | /* Must draw line if no fringe */ | |
922 | if (no_fringe | |
923 | && (WINDOW_LEFT_FRINGE_WIDTH (w) == 0 | |
924 | || WINDOW_RIGHT_FRINGE_WIDTH (w) == 0)) | |
925 | updated++; | |
2d05deef KS |
926 | |
927 | for (y = 0, rn = 0, row = w->current_matrix->rows; | |
928 | y < yb && rn < nrows; | |
929 | y += row->height, ++row, ++rn) | |
930 | { | |
931 | if (!row->redraw_fringe_bitmaps_p) | |
932 | continue; | |
933 | draw_row_fringe_bitmaps (w, row); | |
934 | row->redraw_fringe_bitmaps_p = 0; | |
11491cbb | 935 | updated++; |
2d05deef | 936 | } |
11491cbb KS |
937 | |
938 | return updated; | |
2d05deef KS |
939 | } |
940 | ||
941 | ||
942 | /* Recalculate the bitmaps to show in the fringes of window W. | |
4dadc129 KS |
943 | Only mark rows with modified bitmaps for update in redraw_fringe_bitmaps_p. |
944 | ||
945 | If KEEP_CURRENT_P is 0, update current_matrix too. */ | |
2d05deef KS |
946 | |
947 | int | |
4dadc129 | 948 | update_window_fringes (w, keep_current_p) |
2d05deef | 949 | struct window *w; |
4dadc129 | 950 | int keep_current_p; |
2d05deef KS |
951 | { |
952 | struct glyph_row *row, *cur = 0; | |
953 | int yb = window_text_bottom_y (w); | |
954 | int rn, nrows = w->current_matrix->nrows; | |
955 | int y; | |
956 | int redraw_p = 0; | |
5797a7a0 KS |
957 | Lisp_Object boundary_top = Qnil, boundary_bot = Qnil; |
958 | Lisp_Object arrow_top = Qnil, arrow_bot = Qnil; | |
959 | Lisp_Object empty_pos; | |
960 | Lisp_Object ind = Qnil; | |
7840b332 KS |
961 | #define MAX_BITMAP_CACHE (8*4) |
962 | int bitmap_cache[MAX_BITMAP_CACHE]; | |
2d05deef KS |
963 | |
964 | if (w->pseudo_window_p) | |
965 | return 0; | |
966 | ||
967 | if (!MINI_WINDOW_P (w) | |
968 | && (ind = XBUFFER (w->buffer)->indicate_buffer_boundaries, !NILP (ind))) | |
969 | { | |
5797a7a0 KS |
970 | if (EQ (ind, Qleft) || EQ (ind, Qright)) |
971 | boundary_top = boundary_bot = arrow_top = arrow_bot = ind; | |
972 | else if (CONSP (ind) && CONSP (XCAR (ind))) | |
973 | { | |
974 | Lisp_Object pos; | |
975 | if (pos = Fassq (Qt, ind), !NILP (pos)) | |
976 | boundary_top = boundary_bot = arrow_top = arrow_bot = XCDR (pos); | |
977 | if (pos = Fassq (Qtop, ind), !NILP (pos)) | |
978 | boundary_top = XCDR (pos); | |
979 | if (pos = Fassq (Qbottom, ind), !NILP (pos)) | |
980 | boundary_bot = XCDR (pos); | |
981 | if (pos = Fassq (Qup, ind), !NILP (pos)) | |
982 | arrow_top = XCDR (pos); | |
983 | if (pos = Fassq (Qdown, ind), !NILP (pos)) | |
984 | arrow_bot = XCDR (pos); | |
985 | } | |
2d05deef | 986 | else |
a208b89c KS |
987 | /* Anything else means boundary on left and no arrows. */ |
988 | boundary_top = boundary_bot = Qleft; | |
5797a7a0 | 989 | } |
2d05deef | 990 | |
5797a7a0 KS |
991 | if (!NILP (ind)) |
992 | { | |
26a5d440 | 993 | int done_top = 0, done_bot = 0; |
2d05deef KS |
994 | |
995 | for (y = 0, rn = 0; | |
996 | y < yb && rn < nrows; | |
997 | y += row->height, ++rn) | |
998 | { | |
999 | unsigned indicate_bob_p, indicate_top_line_p; | |
1000 | unsigned indicate_eob_p, indicate_bottom_line_p; | |
bffe8c26 | 1001 | |
2d05deef KS |
1002 | row = w->desired_matrix->rows + rn; |
1003 | if (!row->enabled_p) | |
1004 | row = w->current_matrix->rows + rn; | |
1005 | ||
1006 | indicate_bob_p = row->indicate_bob_p; | |
1007 | indicate_top_line_p = row->indicate_top_line_p; | |
1008 | indicate_eob_p = row->indicate_eob_p; | |
1009 | indicate_bottom_line_p = row->indicate_bottom_line_p; | |
bffe8c26 | 1010 | |
2d05deef KS |
1011 | row->indicate_bob_p = row->indicate_top_line_p = 0; |
1012 | row->indicate_eob_p = row->indicate_bottom_line_p = 0; | |
1013 | ||
26a5d440 KS |
1014 | if (!row->mode_line_p) |
1015 | { | |
1016 | if (!done_top) | |
1017 | { | |
18e1c39a KS |
1018 | if (MATRIX_ROW_START_CHARPOS (row) <= BUF_BEGV (XBUFFER (w->buffer)) |
1019 | && !MATRIX_ROW_PARTIALLY_VISIBLE_AT_TOP_P (w, row)) | |
26a5d440 KS |
1020 | row->indicate_bob_p = !NILP (boundary_top); |
1021 | else | |
1022 | row->indicate_top_line_p = !NILP (arrow_top); | |
1023 | done_top = 1; | |
1024 | } | |
2d05deef | 1025 | |
26a5d440 KS |
1026 | if (!done_bot) |
1027 | { | |
b15d77dd | 1028 | if (MATRIX_ROW_END_CHARPOS (row) >= BUF_ZV (XBUFFER (w->buffer)) |
18e1c39a | 1029 | && !MATRIX_ROW_PARTIALLY_VISIBLE_AT_BOTTOM_P (w, row)) |
26a5d440 KS |
1030 | row->indicate_eob_p = !NILP (boundary_bot), done_bot = 1; |
1031 | else if (y + row->height >= yb) | |
1032 | row->indicate_bottom_line_p = !NILP (arrow_bot), done_bot = 1; | |
1033 | } | |
1034 | } | |
2d05deef KS |
1035 | |
1036 | if (indicate_bob_p != row->indicate_bob_p | |
1037 | || indicate_top_line_p != row->indicate_top_line_p | |
1038 | || indicate_eob_p != row->indicate_eob_p | |
1039 | || indicate_bottom_line_p != row->indicate_bottom_line_p) | |
1040 | row->redraw_fringe_bitmaps_p = 1; | |
1041 | } | |
1042 | } | |
1043 | ||
5797a7a0 KS |
1044 | empty_pos = XBUFFER (w->buffer)->indicate_empty_lines; |
1045 | if (!NILP (empty_pos) && !EQ (empty_pos, Qright)) | |
1046 | empty_pos = WINDOW_LEFT_FRINGE_WIDTH (w) == 0 ? Qright : Qleft; | |
2d05deef | 1047 | |
7840b332 KS |
1048 | for (y = 0; y < MAX_BITMAP_CACHE; y++) |
1049 | bitmap_cache[y] = -1; | |
1050 | ||
1051 | #define LEFT_FRINGE(cache, which, partial_p) \ | |
1052 | (bitmap_cache[cache*4+partial_p] >= 0 \ | |
1053 | ? bitmap_cache[cache*4+partial_p] \ | |
1054 | : (bitmap_cache[cache*4+partial_p] = \ | |
1055 | get_logical_fringe_bitmap (w, which, 0, partial_p))) | |
1056 | ||
1057 | #define RIGHT_FRINGE(cache, which, partial_p) \ | |
1058 | (bitmap_cache[cache*4+2+partial_p] >= 0 \ | |
1059 | ? bitmap_cache[cache*4+2+partial_p] \ | |
1060 | : (bitmap_cache[cache*4+2+partial_p] = \ | |
1061 | get_logical_fringe_bitmap (w, which, 1, partial_p))) | |
1062 | ||
1063 | ||
2d05deef KS |
1064 | for (y = 0, rn = 0; |
1065 | y < yb && rn < nrows; | |
1066 | y += row->height, rn++) | |
1067 | { | |
7840b332 | 1068 | int left, right; |
2d05deef KS |
1069 | unsigned left_face_id, right_face_id; |
1070 | ||
1071 | row = w->desired_matrix->rows + rn; | |
1072 | cur = w->current_matrix->rows + rn; | |
1073 | if (!row->enabled_p) | |
1074 | row = cur; | |
1075 | ||
1076 | left_face_id = right_face_id = DEFAULT_FACE_ID; | |
1077 | ||
1078 | /* Decide which bitmap to draw in the left fringe. */ | |
1079 | if (WINDOW_LEFT_FRINGE_WIDTH (w) == 0) | |
1080 | left = NO_FRINGE_BITMAP; | |
1081 | else if (row->left_user_fringe_bitmap != NO_FRINGE_BITMAP) | |
1082 | { | |
1083 | left = row->left_user_fringe_bitmap; | |
1084 | left_face_id = row->left_user_fringe_face_id; | |
1085 | } | |
cfd3af7a | 1086 | else if (row->truncated_on_left_p) |
7840b332 | 1087 | left = LEFT_FRINGE(0, Qtruncation, 0); |
5797a7a0 KS |
1088 | else if (row->indicate_bob_p && EQ (boundary_top, Qleft)) |
1089 | left = ((row->indicate_eob_p && EQ (boundary_bot, Qleft)) | |
7840b332 KS |
1090 | ? LEFT_FRINGE (1, Qtop_bottom, row->ends_at_zv_p) |
1091 | : LEFT_FRINGE (2, Qtop, 0)); | |
5797a7a0 | 1092 | else if (row->indicate_eob_p && EQ (boundary_bot, Qleft)) |
7840b332 | 1093 | left = LEFT_FRINGE (3, Qbottom, row->ends_at_zv_p); |
2d05deef | 1094 | else if (MATRIX_ROW_CONTINUATION_LINE_P (row)) |
7840b332 | 1095 | left = LEFT_FRINGE (4, Qcontinuation, 0); |
5797a7a0 | 1096 | else if (row->indicate_empty_line_p && EQ (empty_pos, Qleft)) |
7840b332 | 1097 | left = LEFT_FRINGE (5, Qempty_line, 0); |
5797a7a0 | 1098 | else if (row->indicate_top_line_p && EQ (arrow_top, Qleft)) |
7840b332 | 1099 | left = LEFT_FRINGE (6, Qup, 0); |
5797a7a0 | 1100 | else if (row->indicate_bottom_line_p && EQ (arrow_bot, Qleft)) |
7840b332 | 1101 | left = LEFT_FRINGE (7, Qdown, 0); |
2d05deef KS |
1102 | else |
1103 | left = NO_FRINGE_BITMAP; | |
1104 | ||
1105 | /* Decide which bitmap to draw in the right fringe. */ | |
1106 | if (WINDOW_RIGHT_FRINGE_WIDTH (w) == 0) | |
1107 | right = NO_FRINGE_BITMAP; | |
1108 | else if (row->right_user_fringe_bitmap != NO_FRINGE_BITMAP) | |
1109 | { | |
1110 | right = row->right_user_fringe_bitmap; | |
1111 | right_face_id = row->right_user_fringe_face_id; | |
1112 | } | |
cfd3af7a | 1113 | else if (row->truncated_on_right_p) |
7840b332 | 1114 | right = RIGHT_FRINGE (0, Qtruncation, 0); |
5797a7a0 KS |
1115 | else if (row->indicate_bob_p && EQ (boundary_top, Qright)) |
1116 | right = ((row->indicate_eob_p && EQ (boundary_bot, Qright)) | |
7840b332 KS |
1117 | ? RIGHT_FRINGE (1, Qtop_bottom, row->ends_at_zv_p) |
1118 | : RIGHT_FRINGE (2, Qtop, 0)); | |
5797a7a0 | 1119 | else if (row->indicate_eob_p && EQ (boundary_bot, Qright)) |
7840b332 | 1120 | right = RIGHT_FRINGE (3, Qbottom, row->ends_at_zv_p); |
2d05deef | 1121 | else if (row->continued_p) |
7840b332 | 1122 | right = RIGHT_FRINGE (4, Qcontinuation, 0); |
5797a7a0 | 1123 | else if (row->indicate_top_line_p && EQ (arrow_top, Qright)) |
7840b332 | 1124 | right = RIGHT_FRINGE (6, Qup, 0); |
5797a7a0 | 1125 | else if (row->indicate_bottom_line_p && EQ (arrow_bot, Qright)) |
7840b332 | 1126 | right = RIGHT_FRINGE (7, Qdown, 0); |
5797a7a0 | 1127 | else if (row->indicate_empty_line_p && EQ (empty_pos, Qright)) |
7840b332 | 1128 | right = RIGHT_FRINGE (5, Qempty_line, 0); |
2d05deef KS |
1129 | else |
1130 | right = NO_FRINGE_BITMAP; | |
1131 | ||
4dadc129 | 1132 | if (row->y != cur->y |
2d05deef | 1133 | || row->visible_height != cur->visible_height |
81544a1d | 1134 | || row->ends_at_zv_p != cur->ends_at_zv_p |
2d05deef KS |
1135 | || left != cur->left_fringe_bitmap |
1136 | || right != cur->right_fringe_bitmap | |
1137 | || left_face_id != cur->left_fringe_face_id | |
1138 | || right_face_id != cur->right_fringe_face_id | |
1139 | || cur->redraw_fringe_bitmaps_p) | |
1140 | { | |
4dadc129 KS |
1141 | redraw_p = row->redraw_fringe_bitmaps_p = 1; |
1142 | if (!keep_current_p) | |
1143 | { | |
1144 | cur->redraw_fringe_bitmaps_p = 1; | |
1145 | cur->left_fringe_bitmap = left; | |
1146 | cur->right_fringe_bitmap = right; | |
1147 | cur->left_fringe_face_id = left_face_id; | |
1148 | cur->right_fringe_face_id = right_face_id; | |
1149 | } | |
2d05deef KS |
1150 | } |
1151 | ||
7dfa5c49 KS |
1152 | if (row->overlay_arrow_bitmap < 0) |
1153 | row->overlay_arrow_bitmap = get_logical_fringe_bitmap (w, Qoverlay_arrow, 0, 0); | |
1154 | ||
a8b34fae | 1155 | if (row->overlay_arrow_bitmap != cur->overlay_arrow_bitmap) |
2d05deef KS |
1156 | { |
1157 | redraw_p = row->redraw_fringe_bitmaps_p = cur->redraw_fringe_bitmaps_p = 1; | |
a8b34fae | 1158 | cur->overlay_arrow_bitmap = row->overlay_arrow_bitmap; |
2d05deef KS |
1159 | } |
1160 | ||
1161 | row->left_fringe_bitmap = left; | |
1162 | row->right_fringe_bitmap = right; | |
1163 | row->left_fringe_face_id = left_face_id; | |
1164 | row->right_fringe_face_id = right_face_id; | |
81544a1d KS |
1165 | |
1166 | if (rn > 0 && row->redraw_fringe_bitmaps_p) | |
1167 | row[-1].redraw_fringe_bitmaps_p = cur[-1].redraw_fringe_bitmaps_p = 1; | |
2d05deef KS |
1168 | } |
1169 | ||
4dadc129 | 1170 | return redraw_p && !keep_current_p; |
2d05deef KS |
1171 | } |
1172 | ||
1173 | ||
bffe8c26 | 1174 | /* Compute actual fringe widths for frame F. |
2d05deef KS |
1175 | |
1176 | If REDRAW is 1, redraw F if the fringe settings was actually | |
1177 | modified and F is visible. | |
1178 | ||
1179 | Since the combined left and right fringe must occupy an integral | |
1180 | number of columns, we may need to add some pixels to each fringe. | |
1181 | Typically, we add an equal amount (+/- 1 pixel) to each fringe, | |
1182 | but a negative width value is taken literally (after negating it). | |
1183 | ||
11491cbb | 1184 | We never make the fringes narrower than specified. |
2d05deef KS |
1185 | */ |
1186 | ||
1187 | void | |
1188 | compute_fringe_widths (f, redraw) | |
1189 | struct frame *f; | |
1190 | int redraw; | |
1191 | { | |
1192 | int o_left = FRAME_LEFT_FRINGE_WIDTH (f); | |
1193 | int o_right = FRAME_RIGHT_FRINGE_WIDTH (f); | |
1194 | int o_cols = FRAME_FRINGE_COLS (f); | |
1195 | ||
1196 | Lisp_Object left_fringe = Fassq (Qleft_fringe, f->param_alist); | |
1197 | Lisp_Object right_fringe = Fassq (Qright_fringe, f->param_alist); | |
1198 | int left_fringe_width, right_fringe_width; | |
1199 | ||
1200 | if (!NILP (left_fringe)) | |
1201 | left_fringe = Fcdr (left_fringe); | |
1202 | if (!NILP (right_fringe)) | |
1203 | right_fringe = Fcdr (right_fringe); | |
1204 | ||
1205 | left_fringe_width = ((NILP (left_fringe) || !INTEGERP (left_fringe)) ? 8 : | |
1206 | XINT (left_fringe)); | |
1207 | right_fringe_width = ((NILP (right_fringe) || !INTEGERP (right_fringe)) ? 8 : | |
1208 | XINT (right_fringe)); | |
1209 | ||
1210 | if (left_fringe_width || right_fringe_width) | |
1211 | { | |
1212 | int left_wid = left_fringe_width >= 0 ? left_fringe_width : -left_fringe_width; | |
1213 | int right_wid = right_fringe_width >= 0 ? right_fringe_width : -right_fringe_width; | |
1214 | int conf_wid = left_wid + right_wid; | |
1215 | int font_wid = FRAME_COLUMN_WIDTH (f); | |
1216 | int cols = (left_wid + right_wid + font_wid-1) / font_wid; | |
1217 | int real_wid = cols * font_wid; | |
1218 | if (left_wid && right_wid) | |
1219 | { | |
1220 | if (left_fringe_width < 0) | |
1221 | { | |
1222 | /* Left fringe width is fixed, adjust right fringe if necessary */ | |
1223 | FRAME_LEFT_FRINGE_WIDTH (f) = left_wid; | |
1224 | FRAME_RIGHT_FRINGE_WIDTH (f) = real_wid - left_wid; | |
1225 | } | |
1226 | else if (right_fringe_width < 0) | |
1227 | { | |
1228 | /* Right fringe width is fixed, adjust left fringe if necessary */ | |
1229 | FRAME_LEFT_FRINGE_WIDTH (f) = real_wid - right_wid; | |
1230 | FRAME_RIGHT_FRINGE_WIDTH (f) = right_wid; | |
1231 | } | |
1232 | else | |
1233 | { | |
1234 | /* Adjust both fringes with an equal amount. | |
1235 | Note that we are doing integer arithmetic here, so don't | |
1236 | lose a pixel if the total width is an odd number. */ | |
1237 | int fill = real_wid - conf_wid; | |
1238 | FRAME_LEFT_FRINGE_WIDTH (f) = left_wid + fill/2; | |
1239 | FRAME_RIGHT_FRINGE_WIDTH (f) = right_wid + fill - fill/2; | |
1240 | } | |
1241 | } | |
1242 | else if (left_fringe_width) | |
1243 | { | |
1244 | FRAME_LEFT_FRINGE_WIDTH (f) = real_wid; | |
1245 | FRAME_RIGHT_FRINGE_WIDTH (f) = 0; | |
1246 | } | |
1247 | else | |
1248 | { | |
1249 | FRAME_LEFT_FRINGE_WIDTH (f) = 0; | |
1250 | FRAME_RIGHT_FRINGE_WIDTH (f) = real_wid; | |
1251 | } | |
1252 | FRAME_FRINGE_COLS (f) = cols; | |
1253 | } | |
1254 | else | |
1255 | { | |
1256 | FRAME_LEFT_FRINGE_WIDTH (f) = 0; | |
1257 | FRAME_RIGHT_FRINGE_WIDTH (f) = 0; | |
1258 | FRAME_FRINGE_COLS (f) = 0; | |
1259 | } | |
1260 | ||
1261 | if (redraw && FRAME_VISIBLE_P (f)) | |
1262 | if (o_left != FRAME_LEFT_FRINGE_WIDTH (f) || | |
1263 | o_right != FRAME_RIGHT_FRINGE_WIDTH (f) || | |
1264 | o_cols != FRAME_FRINGE_COLS (f)) | |
1265 | redraw_frame (f); | |
1266 | } | |
1267 | ||
7a2a85be | 1268 | |
4cce0ab7 KS |
1269 | /* Free resources used by a user-defined bitmap. */ |
1270 | ||
c3c69bb6 | 1271 | void |
7a2a85be KS |
1272 | destroy_fringe_bitmap (n) |
1273 | int n; | |
2d05deef | 1274 | { |
2d05deef KS |
1275 | struct fringe_bitmap **fbp; |
1276 | ||
49ce2dbd | 1277 | fringe_faces[n] = Qnil; |
2d05deef KS |
1278 | |
1279 | fbp = &fringe_bitmaps[n]; | |
1280 | if (*fbp && (*fbp)->dynamic) | |
1281 | { | |
e581a466 | 1282 | /* XXX Is SELECTED_FRAME OK here? */ |
04ccca97 | 1283 | struct redisplay_interface *rif = FRAME_RIF (SELECTED_FRAME ()); |
f2be4fd0 | 1284 | if (rif && rif->destroy_fringe_bitmap) |
2d05deef KS |
1285 | rif->destroy_fringe_bitmap (n); |
1286 | xfree (*fbp); | |
1287 | *fbp = NULL; | |
1288 | } | |
1289 | ||
1290 | while (max_used_fringe_bitmap > MAX_STANDARD_FRINGE_BITMAPS | |
1291 | && fringe_bitmaps[max_used_fringe_bitmap - 1] == NULL) | |
1292 | max_used_fringe_bitmap--; | |
7a2a85be KS |
1293 | } |
1294 | ||
2d05deef | 1295 | |
7a2a85be KS |
1296 | DEFUN ("destroy-fringe-bitmap", Fdestroy_fringe_bitmap, Sdestroy_fringe_bitmap, |
1297 | 1, 1, 0, | |
1298 | doc: /* Destroy fringe bitmap BITMAP. | |
1299 | If BITMAP overrides a standard fringe bitmap, the original bitmap is restored. */) | |
1300 | (bitmap) | |
1301 | Lisp_Object bitmap; | |
1302 | { | |
1303 | int n; | |
7a2a85be | 1304 | |
4cce0ab7 KS |
1305 | CHECK_SYMBOL (bitmap); |
1306 | n = lookup_fringe_bitmap (bitmap); | |
1307 | if (!n) | |
7a2a85be KS |
1308 | return Qnil; |
1309 | ||
1310 | destroy_fringe_bitmap (n); | |
2d05deef | 1311 | |
4cce0ab7 | 1312 | if (n >= MAX_STANDARD_FRINGE_BITMAPS) |
7a2a85be | 1313 | { |
4cce0ab7 | 1314 | Vfringe_bitmaps = Fdelq (bitmap, Vfringe_bitmaps); |
7a2a85be | 1315 | /* It would be better to remove the fringe property. */ |
4cce0ab7 | 1316 | Fput (bitmap, Qfringe, Qnil); |
7a2a85be | 1317 | } |
4cce0ab7 | 1318 | |
2d05deef KS |
1319 | return Qnil; |
1320 | } | |
1321 | ||
1322 | ||
1323 | /* Initialize bitmap bit. | |
0881a0fd KS |
1324 | |
1325 | On X, we bit-swap the built-in bitmaps and reduce bitmap | |
1326 | from short to char array if width is <= 8 bits. | |
1327 | ||
bd231131 KS |
1328 | On MAC with big-endian CPU, we need to byte-swap each short. |
1329 | ||
1330 | On W32 and MAC (little endian), there's no need to do this. | |
2d05deef KS |
1331 | */ |
1332 | ||
2e4e5023 GM |
1333 | #if defined (HAVE_X_WINDOWS) |
1334 | static unsigned char swap_nibble[16] = { | |
1335 | 0x0, 0x8, 0x4, 0xc, /* 0000 1000 0100 1100 */ | |
1336 | 0x2, 0xa, 0x6, 0xe, /* 0010 1010 0110 1110 */ | |
1337 | 0x1, 0x9, 0x5, 0xd, /* 0001 1001 0101 1101 */ | |
1338 | 0x3, 0xb, 0x7, 0xf}; /* 0011 1011 0111 1111 */ | |
1339 | #endif /* HAVE_X_WINDOWS */ | |
1340 | ||
2d05deef KS |
1341 | void |
1342 | init_fringe_bitmap (which, fb, once_p) | |
7840b332 | 1343 | int which; |
2d05deef KS |
1344 | struct fringe_bitmap *fb; |
1345 | int once_p; | |
1346 | { | |
1347 | if (once_p || fb->dynamic) | |
1348 | { | |
0881a0fd | 1349 | #if defined (HAVE_X_WINDOWS) |
0881a0fd | 1350 | unsigned short *bits = fb->bits; |
2d05deef | 1351 | int j; |
0881a0fd KS |
1352 | |
1353 | if (fb->width <= 8) | |
1354 | { | |
1355 | unsigned char *cbits = (unsigned char *)fb->bits; | |
1356 | for (j = 0; j < fb->height; j++) | |
1357 | { | |
1358 | unsigned short b = *bits++; | |
1359 | unsigned char c; | |
1360 | c = (unsigned char)((swap_nibble[b & 0xf] << 4) | |
1361 | | (swap_nibble[(b>>4) & 0xf])); | |
1362 | *cbits++ = (c >> (8 - fb->width)); | |
1363 | } | |
1364 | } | |
1365 | else | |
2d05deef | 1366 | { |
0881a0fd KS |
1367 | for (j = 0; j < fb->height; j++) |
1368 | { | |
1369 | unsigned short b = *bits; | |
1370 | b = (unsigned short)((swap_nibble[b & 0xf] << 12) | |
1371 | | (swap_nibble[(b>>4) & 0xf] << 8) | |
1372 | | (swap_nibble[(b>>8) & 0xf] << 4) | |
1373 | | (swap_nibble[(b>>12) & 0xf])); | |
1374 | *bits++ = (b >> (16 - fb->width)); | |
1375 | } | |
2d05deef | 1376 | } |
bd231131 KS |
1377 | #endif /* HAVE_X_WINDOWS */ |
1378 | ||
1379 | #if defined (MAC_OS) && defined (WORDS_BIG_ENDIAN) | |
1380 | unsigned short *bits = fb->bits; | |
159c348e | 1381 | int j; |
bd231131 KS |
1382 | for (j = 0; j < fb->height; j++) |
1383 | { | |
1384 | unsigned short b = *bits; | |
1385 | *bits++ = ((b >> 8) & 0xff) | ((b & 0xff) << 8); | |
1386 | } | |
1387 | #endif /* MAC_OS && WORDS_BIG_ENDIAN */ | |
2d05deef KS |
1388 | } |
1389 | ||
1390 | if (!once_p) | |
1391 | { | |
e581a466 | 1392 | /* XXX Is SELECTED_FRAME OK here? */ |
04ccca97 | 1393 | struct redisplay_interface *rif = FRAME_RIF (SELECTED_FRAME ()); |
a284b538 KL |
1394 | |
1395 | destroy_fringe_bitmap (which); | |
1396 | ||
f2be4fd0 | 1397 | if (rif && rif->define_fringe_bitmap) |
2d05deef KS |
1398 | rif->define_fringe_bitmap (which, fb->bits, fb->height, fb->width); |
1399 | ||
1400 | fringe_bitmaps[which] = fb; | |
1401 | if (which >= max_used_fringe_bitmap) | |
1402 | max_used_fringe_bitmap = which + 1; | |
1403 | } | |
1404 | } | |
1405 | ||
1406 | ||
1407 | DEFUN ("define-fringe-bitmap", Fdefine_fringe_bitmap, Sdefine_fringe_bitmap, | |
7a2a85be KS |
1408 | 2, 5, 0, |
1409 | doc: /* Define fringe bitmap BITMAP from BITS of size HEIGHT x WIDTH. | |
2faacff7 | 1410 | BITMAP is a symbol identifying the new fringe bitmap. |
0881a0fd KS |
1411 | BITS is either a string or a vector of integers. |
1412 | HEIGHT is height of bitmap. If HEIGHT is nil, use length of BITS. | |
1413 | WIDTH must be an integer between 1 and 16, or nil which defaults to 8. | |
7a2a85be | 1414 | Optional fifth arg ALIGN may be one of `top', `center', or `bottom', |
0881a0fd KS |
1415 | indicating the positioning of the bitmap relative to the rows where it |
1416 | is used; the default is to center the bitmap. Fourth arg may also be a | |
1417 | list (ALIGN PERIODIC) where PERIODIC non-nil specifies that the bitmap | |
1418 | should be repeated. | |
7a2a85be KS |
1419 | If BITMAP already exists, the existing definition is replaced. */) |
1420 | (bitmap, bits, height, width, align) | |
1421 | Lisp_Object bitmap, bits, height, width, align; | |
2d05deef | 1422 | { |
2d05deef | 1423 | int n, h, i, j; |
0881a0fd | 1424 | unsigned short *b; |
2d05deef KS |
1425 | struct fringe_bitmap fb, *xfb; |
1426 | int fill1 = 0, fill2 = 0; | |
7a2a85be | 1427 | |
4cce0ab7 | 1428 | CHECK_SYMBOL (bitmap); |
2d05deef | 1429 | |
11e04b2d KS |
1430 | if (STRINGP (bits)) |
1431 | h = SCHARS (bits); | |
1432 | else if (VECTORP (bits)) | |
1433 | h = XVECTOR (bits)->size; | |
1434 | else | |
7fee0b51 | 1435 | wrong_type_argument (Qsequencep, bits); |
2d05deef KS |
1436 | |
1437 | if (NILP (height)) | |
11e04b2d | 1438 | fb.height = h; |
2d05deef KS |
1439 | else |
1440 | { | |
1441 | CHECK_NUMBER (height); | |
1442 | fb.height = min (XINT (height), 255); | |
11e04b2d | 1443 | if (fb.height > h) |
2d05deef | 1444 | { |
2d05deef KS |
1445 | fill1 = (fb.height - h) / 2; |
1446 | fill2 = fb.height - h - fill1; | |
1447 | } | |
1448 | } | |
bffe8c26 | 1449 | |
2d05deef KS |
1450 | if (NILP (width)) |
1451 | fb.width = 8; | |
1452 | else | |
1453 | { | |
1454 | CHECK_NUMBER (width); | |
1455 | fb.width = min (XINT (width), 255); | |
1456 | } | |
1457 | ||
1458 | fb.period = 0; | |
1459 | fb.align = ALIGN_BITMAP_CENTER; | |
1460 | ||
1461 | if (CONSP (align)) | |
1462 | { | |
1463 | Lisp_Object period = XCDR (align); | |
1464 | if (CONSP (period)) | |
1465 | { | |
1466 | period = XCAR (period); | |
1467 | if (!NILP (period)) | |
1468 | { | |
1469 | fb.period = fb.height; | |
1470 | fb.height = 255; | |
1471 | } | |
1472 | } | |
1473 | align = XCAR (align); | |
1474 | } | |
1475 | if (EQ (align, Qtop)) | |
1476 | fb.align = ALIGN_BITMAP_TOP; | |
1477 | else if (EQ (align, Qbottom)) | |
1478 | fb.align = ALIGN_BITMAP_BOTTOM; | |
1479 | else if (!NILP (align) && !EQ (align, Qcenter)) | |
1480 | error ("Bad align argument"); | |
1481 | ||
ad67849e | 1482 | n = lookup_fringe_bitmap (bitmap); |
4cce0ab7 | 1483 | if (!n) |
2d05deef | 1484 | { |
ad67849e | 1485 | if (max_used_fringe_bitmap < max_fringe_bitmaps) |
d2f14999 | 1486 | n = max_used_fringe_bitmap++; |
2d05deef KS |
1487 | else |
1488 | { | |
1489 | for (n = MAX_STANDARD_FRINGE_BITMAPS; | |
ad67849e | 1490 | n < max_fringe_bitmaps; |
2d05deef KS |
1491 | n++) |
1492 | if (fringe_bitmaps[n] == NULL) | |
1493 | break; | |
ad67849e KS |
1494 | |
1495 | if (n == max_fringe_bitmaps) | |
1496 | { | |
1497 | if ((max_fringe_bitmaps + 20) > MAX_FRINGE_BITMAPS) | |
1498 | error ("No free fringe bitmap slots"); | |
1499 | ||
1500 | i = max_fringe_bitmaps; | |
1501 | max_fringe_bitmaps += 20; | |
1502 | fringe_bitmaps | |
1503 | = ((struct fringe_bitmap **) | |
1504 | xrealloc (fringe_bitmaps, max_fringe_bitmaps * sizeof (struct fringe_bitmap *))); | |
1505 | fringe_faces | |
50af5100 | 1506 | = (Lisp_Object *) xrealloc (fringe_faces, max_fringe_bitmaps * sizeof (Lisp_Object)); |
ad67849e KS |
1507 | |
1508 | for (; i < max_fringe_bitmaps; i++) | |
1509 | { | |
1510 | fringe_bitmaps[i] = NULL; | |
49ce2dbd | 1511 | fringe_faces[i] = Qnil; |
ad67849e KS |
1512 | } |
1513 | } | |
2d05deef | 1514 | } |
7a2a85be | 1515 | |
4cce0ab7 KS |
1516 | Vfringe_bitmaps = Fcons (bitmap, Vfringe_bitmaps); |
1517 | Fput (bitmap, Qfringe, make_number (n)); | |
2d05deef KS |
1518 | } |
1519 | ||
1520 | fb.dynamic = 1; | |
1521 | ||
beaedd56 AS |
1522 | xfb = (struct fringe_bitmap *) xmalloc (sizeof fb |
1523 | + fb.height * BYTES_PER_BITMAP_ROW); | |
1524 | fb.bits = b = (unsigned short *) (xfb + 1); | |
2d05deef KS |
1525 | bzero (b, fb.height); |
1526 | ||
1527 | j = 0; | |
1528 | while (j < fb.height) | |
1529 | { | |
1530 | for (i = 0; i < fill1 && j < fb.height; i++) | |
1531 | b[j++] = 0; | |
e581a466 | 1532 | for (i = 0; i < h && j < fb.height; i++) |
2d05deef KS |
1533 | { |
1534 | Lisp_Object elt = Faref (bits, make_number (i)); | |
1535 | b[j++] = NUMBERP (elt) ? XINT (elt) : 0; | |
1536 | } | |
1537 | for (i = 0; i < fill2 && j < fb.height; i++) | |
1538 | b[j++] = 0; | |
1539 | } | |
1540 | ||
1541 | *xfb = fb; | |
1542 | ||
1543 | init_fringe_bitmap (n, xfb, 0); | |
1544 | ||
4cce0ab7 | 1545 | return bitmap; |
2d05deef KS |
1546 | } |
1547 | ||
1548 | DEFUN ("set-fringe-bitmap-face", Fset_fringe_bitmap_face, Sset_fringe_bitmap_face, | |
1549 | 1, 2, 0, | |
7a2a85be | 1550 | doc: /* Set face for fringe bitmap BITMAP to FACE. |
2d05deef | 1551 | If FACE is nil, reset face to default fringe face. */) |
7a2a85be KS |
1552 | (bitmap, face) |
1553 | Lisp_Object bitmap, face; | |
2d05deef | 1554 | { |
4cce0ab7 | 1555 | int n; |
2d05deef KS |
1556 | int face_id; |
1557 | ||
4cce0ab7 KS |
1558 | CHECK_SYMBOL (bitmap); |
1559 | n = lookup_fringe_bitmap (bitmap); | |
1560 | if (!n) | |
7a2a85be | 1561 | error ("Undefined fringe bitmap"); |
2d05deef KS |
1562 | |
1563 | if (!NILP (face)) | |
1564 | { | |
308785c1 KS |
1565 | face_id = lookup_derived_face (SELECTED_FRAME (), face, |
1566 | 'A', FRINGE_FACE_ID, 1); | |
2d05deef KS |
1567 | if (face_id < 0) |
1568 | error ("No such face"); | |
1569 | } | |
2d05deef | 1570 | |
49ce2dbd | 1571 | fringe_faces[n] = face; |
2d05deef KS |
1572 | |
1573 | return Qnil; | |
1574 | } | |
1575 | ||
1576 | DEFUN ("fringe-bitmaps-at-pos", Ffringe_bitmaps_at_pos, Sfringe_bitmaps_at_pos, | |
1577 | 0, 2, 0, | |
bffe8c26 | 1578 | doc: /* Return fringe bitmaps of row containing position POS in window WINDOW. |
2d05deef | 1579 | If WINDOW is nil, use selected window. If POS is nil, use value of point |
d3848fe9 KS |
1580 | in that window. Return value is a list (LEFT RIGHT OV), where LEFT |
1581 | is the symbol for the bitmap in the left fringe (or nil if no bitmap), | |
1582 | RIGHT is similar for the right fringe, and OV is non-nil if there is an | |
1583 | overlay arrow in the left fringe. | |
5797a7a0 | 1584 | Return nil if POS is not visible in WINDOW. */) |
2d05deef | 1585 | (pos, window) |
d30b6b33 | 1586 | Lisp_Object pos, window; |
2d05deef KS |
1587 | { |
1588 | struct window *w; | |
2d05deef KS |
1589 | struct glyph_row *row; |
1590 | int textpos; | |
1591 | ||
1592 | if (NILP (window)) | |
1593 | window = selected_window; | |
1594 | CHECK_WINDOW (window); | |
1595 | w = XWINDOW (window); | |
1596 | ||
1597 | if (!NILP (pos)) | |
1598 | { | |
1599 | CHECK_NUMBER_COERCE_MARKER (pos); | |
1600 | textpos = XINT (pos); | |
1601 | } | |
1602 | else if (w == XWINDOW (selected_window)) | |
1603 | textpos = PT; | |
1604 | else | |
1605 | textpos = XMARKER (w->pointm)->charpos; | |
1606 | ||
1607 | row = MATRIX_FIRST_TEXT_ROW (w->current_matrix); | |
1608 | row = row_containing_pos (w, textpos, row, NULL, 0); | |
1609 | if (row) | |
d3848fe9 KS |
1610 | return list3 (get_fringe_bitmap_name (row->left_fringe_bitmap), |
1611 | get_fringe_bitmap_name (row->right_fringe_bitmap), | |
a8b34fae KS |
1612 | (row->overlay_arrow_bitmap == 0 ? Qnil |
1613 | : row->overlay_arrow_bitmap < 0 ? Qt | |
1614 | : get_fringe_bitmap_name (row->overlay_arrow_bitmap))); | |
2d05deef KS |
1615 | else |
1616 | return Qnil; | |
1617 | } | |
1618 | ||
1619 | ||
1620 | /*********************************************************************** | |
1621 | Initialization | |
1622 | ***********************************************************************/ | |
1623 | ||
1624 | void | |
1625 | syms_of_fringe () | |
1626 | { | |
7840b332 KS |
1627 | Qtruncation = intern ("truncation"); |
1628 | staticpro (&Qtruncation); | |
1629 | Qcontinuation = intern ("continuation"); | |
1630 | staticpro (&Qcontinuation); | |
1631 | Qoverlay_arrow = intern ("overlay-arrow"); | |
1632 | staticpro (&Qoverlay_arrow); | |
1633 | Qempty_line = intern ("empty-line"); | |
1634 | staticpro (&Qempty_line); | |
1635 | Qtop_bottom = intern ("top-bottom"); | |
1636 | staticpro (&Qtop_bottom); | |
1637 | Qhollow_small = intern ("hollow-small"); | |
1638 | staticpro (&Qhollow_small); | |
1639 | ||
2d05deef KS |
1640 | defsubr (&Sdestroy_fringe_bitmap); |
1641 | defsubr (&Sdefine_fringe_bitmap); | |
1642 | defsubr (&Sfringe_bitmaps_at_pos); | |
1643 | defsubr (&Sset_fringe_bitmap_face); | |
1644 | ||
1645 | DEFVAR_LISP ("overflow-newline-into-fringe", &Voverflow_newline_into_fringe, | |
1646 | doc: /* *Non-nil means that newline may flow into the right fringe. | |
1647 | This means that display lines which are exactly as wide as the window | |
1648 | (not counting the final newline) will only occupy one screen line, by | |
1649 | showing (or hiding) the final newline in the right fringe; when point | |
1650 | is at the final newline, the cursor is shown in the right fringe. | |
1651 | If nil, also continue lines which are exactly as wide as the window. */); | |
1652 | Voverflow_newline_into_fringe = Qt; | |
1653 | ||
7a2a85be | 1654 | DEFVAR_LISP ("fringe-bitmaps", &Vfringe_bitmaps, |
a4b7b036 | 1655 | doc: /* List of fringe bitmap symbols. */); |
7a2a85be | 1656 | Vfringe_bitmaps = Qnil; |
2d05deef KS |
1657 | } |
1658 | ||
49ce2dbd KS |
1659 | /* Garbage collection hook */ |
1660 | ||
1661 | void | |
1662 | mark_fringe_data () | |
1663 | { | |
1664 | int i; | |
1665 | ||
1666 | for (i = 0; i < max_fringe_bitmaps; i++) | |
1667 | if (!NILP (fringe_faces[i])) | |
1668 | mark_object (fringe_faces[i]); | |
1669 | } | |
1670 | ||
2d05deef KS |
1671 | /* Initialize this module when Emacs starts. */ |
1672 | ||
1673 | void | |
1674 | init_fringe_once () | |
1675 | { | |
7840b332 | 1676 | int bt; |
2d05deef KS |
1677 | |
1678 | for (bt = NO_FRINGE_BITMAP + 1; bt < MAX_STANDARD_FRINGE_BITMAPS; bt++) | |
1679 | init_fringe_bitmap(bt, &standard_bitmaps[bt], 1); | |
1680 | } | |
1681 | ||
1682 | void | |
1683 | init_fringe () | |
1684 | { | |
1685 | int i; | |
1686 | ||
ad67849e KS |
1687 | max_fringe_bitmaps = MAX_STANDARD_FRINGE_BITMAPS + 20; |
1688 | ||
1689 | fringe_bitmaps | |
1690 | = (struct fringe_bitmap **) xmalloc (max_fringe_bitmaps * sizeof (struct fringe_bitmap *)); | |
1691 | fringe_faces | |
50af5100 | 1692 | = (Lisp_Object *) xmalloc (max_fringe_bitmaps * sizeof (Lisp_Object)); |
ad67849e KS |
1693 | |
1694 | for (i = 0; i < max_fringe_bitmaps; i++) | |
1695 | { | |
1696 | fringe_bitmaps[i] = NULL; | |
49ce2dbd | 1697 | fringe_faces[i] = Qnil; |
ad67849e | 1698 | } |
2d05deef KS |
1699 | } |
1700 | ||
64c37431 | 1701 | #if defined (HAVE_NTGUI) || defined (MAC_OS) |
2d05deef KS |
1702 | |
1703 | void | |
64c37431 | 1704 | #ifdef HAVE_NTGUI |
91f4aeef | 1705 | w32_init_fringe (rif) |
bd8ce5da | 1706 | #else /* MAC_OS */ |
91f4aeef | 1707 | mac_init_fringe (rif) |
bd8ce5da | 1708 | #endif |
91f4aeef | 1709 | struct redisplay_interface *rif; |
2d05deef | 1710 | { |
7840b332 | 1711 | int bt; |
2d05deef | 1712 | |
f2be4fd0 KS |
1713 | if (!rif) |
1714 | return; | |
1715 | ||
2d05deef KS |
1716 | for (bt = NO_FRINGE_BITMAP + 1; bt < MAX_STANDARD_FRINGE_BITMAPS; bt++) |
1717 | { | |
1718 | struct fringe_bitmap *fb = &standard_bitmaps[bt]; | |
1719 | rif->define_fringe_bitmap (bt, fb->bits, fb->height, fb->width); | |
1720 | } | |
1721 | } | |
bd8ce5da | 1722 | #endif |
2d05deef | 1723 | |
64c37431 | 1724 | #ifdef HAVE_NTGUI |
2d05deef KS |
1725 | void |
1726 | w32_reset_fringes () | |
1727 | { | |
1728 | /* Destroy row bitmaps. */ | |
1729 | int bt; | |
5c217767 | 1730 | struct redisplay_interface *rif = FRAME_RIF (SELECTED_FRAME ()); |
bffe8c26 | 1731 | |
f2be4fd0 KS |
1732 | if (!rif) |
1733 | return; | |
1734 | ||
2d05deef KS |
1735 | for (bt = NO_FRINGE_BITMAP + 1; bt < max_used_fringe_bitmap; bt++) |
1736 | rif->destroy_fringe_bitmap (bt); | |
1737 | } | |
1738 | ||
bd231131 | 1739 | #endif /* HAVE_NTGUI */ |
2d05deef KS |
1740 | |
1741 | #endif /* HAVE_WINDOW_SYSTEM */ | |
1742 | ||
429e7e2d MB |
1743 | /* arch-tag: 04596920-43eb-473d-b319-82712338162d |
1744 | (do not change this comment) */ |