Commit | Line | Data |
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6b61353c | 1 | /* Fringe handling (split from xdisp.c). |
0b5538bd | 2 | Copyright (C) 1985, 1986, 1987, 1988, 1993, 1994, 1995, 1997, |
429ab54e | 3 | 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, |
8cabe764 | 4 | 2006, 2007, 2008 Free Software Foundation, Inc. |
6b61353c KH |
5 | |
6 | This file is part of GNU Emacs. | |
7 | ||
9ec0b715 | 8 | GNU Emacs is free software: you can redistribute it and/or modify |
6b61353c | 9 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
10 | the Free Software Foundation, either version 3 of the License, or |
11 | (at your option) any later version. | |
6b61353c KH |
12 | |
13 | GNU Emacs is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
9ec0b715 | 19 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
6b61353c KH |
20 | |
21 | #include <config.h> | |
22 | #include <stdio.h> | |
23 | ||
24 | #include "lisp.h" | |
25 | #include "frame.h" | |
26 | #include "window.h" | |
27 | #include "dispextern.h" | |
28 | #include "buffer.h" | |
29 | #include "blockinput.h" | |
e581a466 | 30 | #include "termhooks.h" |
6b61353c KH |
31 | |
32 | #ifdef HAVE_WINDOW_SYSTEM | |
33 | ||
7a2a85be | 34 | extern Lisp_Object Qfringe; |
6b61353c | 35 | extern Lisp_Object Qtop, Qbottom, Qcenter; |
5797a7a0 | 36 | extern Lisp_Object Qup, Qdown, Qleft, Qright; |
6b61353c KH |
37 | |
38 | /* Non-nil means that newline may flow into the right fringe. */ | |
39 | ||
40 | Lisp_Object Voverflow_newline_into_fringe; | |
41 | ||
7a2a85be KS |
42 | /* List of known fringe bitmap symbols. |
43 | ||
44 | The fringe bitmap number is stored in the `fringe' property on | |
45 | those symbols. Names for the built-in bitmaps are installed by | |
46 | loading fringe.el. | |
47 | */ | |
48 | ||
49 | Lisp_Object Vfringe_bitmaps; | |
6b61353c | 50 | |
7840b332 KS |
51 | /* Fringe bitmaps are represented in three different ways: |
52 | ||
53 | Logical bitmaps are used internally to denote things like | |
54 | 'end-of-buffer', 'left-truncation', 'overlay-arrow', etc. | |
55 | ||
56 | Physical bitmaps specify the visual appearence of the bitmap, | |
57 | e.g. 'bottom-left-angle', 'left-arrow', 'left-triangle', etc. | |
58 | User defined bitmaps are physical bitmaps. | |
59 | ||
60 | Internally, fringe bitmaps for a specific display row are | |
61 | represented as a simple integer that is used as an index | |
62 | into the table of all defined bitmaps. This index is stored | |
63 | in the `fringe' property of the physical bitmap symbol. | |
64 | ||
65 | Logical bitmaps are mapped to physical bitmaps through the | |
66 | buffer-local `fringe-indicator-alist' variable. | |
67 | ||
68 | Each element of this alist is a cons (LOGICAL . PHYSICAL) | |
69 | mapping a logical bitmap to a physical bitmap. | |
70 | PHYSICAL is either a symbol to use in both left and right fringe, | |
71 | or a cons of two symbols (LEFT . RIGHT) denoting different | |
72 | bitmaps to use in left and right fringe. | |
73 | ||
74 | LOGICAL is first looked up in the window's buffer's buffer-local | |
75 | value of the fringe-indicator-alist variable, and if not present, | |
76 | in the global value of fringe-indicator-alist. | |
77 | ||
78 | If LOGICAL is not present in either alist, or the PHYSICAL value | |
79 | found is nil, no bitmap is shown for the logical bitmap. | |
80 | ||
81 | The `left-fringe' and `right-fringe' display properties | |
82 | must specify physical bitmap symbols. | |
83 | */ | |
84 | ||
85 | extern Lisp_Object Qunknown; | |
86 | Lisp_Object Qtruncation, Qcontinuation, Qoverlay_arrow; | |
87 | Lisp_Object Qempty_line, Qtop_bottom; | |
88 | extern Lisp_Object Qbar, Qhbar, Qbox, Qhollow; | |
89 | Lisp_Object Qhollow_small; | |
6b61353c KH |
90 | |
91 | enum fringe_bitmap_align | |
92 | { | |
93 | ALIGN_BITMAP_CENTER = 0, | |
94 | ALIGN_BITMAP_TOP, | |
95 | ALIGN_BITMAP_BOTTOM | |
96 | }; | |
97 | ||
98 | struct fringe_bitmap | |
99 | { | |
100 | unsigned short *bits; | |
101 | unsigned height : 8; | |
102 | unsigned width : 8; | |
103 | unsigned period : 8; | |
104 | unsigned align : 2; | |
105 | unsigned dynamic : 1; | |
106 | }; | |
107 | ||
108 | \f | |
109 | /*********************************************************************** | |
110 | Fringe bitmaps | |
111 | ***********************************************************************/ | |
112 | ||
113 | /* Undefined bitmap. A question mark. */ | |
114 | /* | |
115 | ..xxxx.. | |
116 | .xxxxxx. | |
117 | xx....xx | |
118 | xx....xx | |
119 | ....xx.. | |
120 | ...xx... | |
121 | ...xx... | |
122 | ........ | |
123 | ...xx... | |
124 | ...xx... | |
125 | */ | |
7840b332 | 126 | static unsigned short question_mark_bits[] = { |
6b61353c KH |
127 | 0x3c, 0x7e, 0x7e, 0x0c, 0x18, 0x18, 0x00, 0x18, 0x18}; |
128 | ||
129 | /* An arrow like this: `<-'. */ | |
130 | /* | |
131 | ...xx... | |
132 | ..xx.... | |
133 | .xx..... | |
134 | xxxxxx.. | |
135 | xxxxxx.. | |
136 | .xx..... | |
137 | ..xx.... | |
138 | ...xx... | |
139 | */ | |
140 | static unsigned short left_arrow_bits[] = { | |
141 | 0x18, 0x30, 0x60, 0xfc, 0xfc, 0x60, 0x30, 0x18}; | |
142 | ||
143 | ||
144 | /* Right truncation arrow bitmap `->'. */ | |
145 | /* | |
146 | ...xx... | |
147 | ....xx.. | |
148 | .....xx. | |
149 | ..xxxxxx | |
150 | ..xxxxxx | |
151 | .....xx. | |
152 | ....xx.. | |
153 | ...xx... | |
154 | */ | |
155 | static unsigned short right_arrow_bits[] = { | |
156 | 0x18, 0x0c, 0x06, 0x3f, 0x3f, 0x06, 0x0c, 0x18}; | |
157 | ||
158 | ||
159 | /* Up arrow bitmap. */ | |
160 | /* | |
161 | ...xx... | |
162 | ..xxxx.. | |
163 | .xxxxxx. | |
164 | xxxxxxxx | |
165 | ...xx... | |
166 | ...xx... | |
167 | ...xx... | |
168 | ...xx... | |
169 | */ | |
170 | static unsigned short up_arrow_bits[] = { | |
171 | 0x18, 0x3c, 0x7e, 0xff, 0x18, 0x18, 0x18, 0x18}; | |
172 | ||
173 | ||
174 | /* Down arrow bitmap. */ | |
175 | /* | |
176 | ...xx... | |
177 | ...xx... | |
178 | ...xx... | |
179 | ...xx... | |
180 | xxxxxxxx | |
181 | .xxxxxx. | |
182 | ..xxxx.. | |
183 | ...xx... | |
184 | */ | |
185 | static unsigned short down_arrow_bits[] = { | |
186 | 0x18, 0x18, 0x18, 0x18, 0xff, 0x7e, 0x3c, 0x18}; | |
187 | ||
6b61353c KH |
188 | /* Marker for continuation lines. */ |
189 | /* | |
190 | ..xxxx.. | |
191 | .xxxxx.. | |
192 | xx...... | |
193 | xxx..x.. | |
194 | xxxxxx.. | |
195 | .xxxxx.. | |
196 | ..xxxx.. | |
197 | .xxxxx.. | |
198 | */ | |
7840b332 | 199 | static unsigned short left_curly_arrow_bits[] = { |
6b61353c KH |
200 | 0x3c, 0x7c, 0xc0, 0xe4, 0xfc, 0x7c, 0x3c, 0x7c}; |
201 | ||
7840b332 | 202 | /* Marker for continued lines. */ |
6b61353c | 203 | /* |
7840b332 KS |
204 | ..xxxx.. |
205 | ..xxxxx. | |
206 | ......xx | |
207 | ..x..xxx | |
208 | ..xxxxxx | |
209 | ..xxxxx. | |
210 | ..xxxx.. | |
211 | ..xxxxx. | |
6b61353c | 212 | */ |
7840b332 KS |
213 | static unsigned short right_curly_arrow_bits[] = { |
214 | 0x3c, 0x3e, 0x03, 0x27, 0x3f, 0x3e, 0x3c, 0x3e}; | |
6b61353c | 215 | |
6b61353c KH |
216 | /* Reverse Overlay arrow bitmap. A triangular arrow. */ |
217 | /* | |
218 | ......xx | |
219 | ....xxxx | |
220 | ...xxxxx | |
221 | ..xxxxxx | |
222 | ..xxxxxx | |
223 | ...xxxxx | |
224 | ....xxxx | |
225 | ......xx | |
226 | */ | |
7840b332 | 227 | static unsigned short left_triangle_bits[] = { |
6b61353c | 228 | 0x03, 0x0f, 0x1f, 0x3f, 0x3f, 0x1f, 0x0f, 0x03}; |
7840b332 KS |
229 | |
230 | /* Overlay arrow bitmap. A triangular arrow. */ | |
231 | /* | |
232 | xx...... | |
233 | xxxx.... | |
234 | xxxxx... | |
235 | xxxxxx.. | |
236 | xxxxxx.. | |
237 | xxxxx... | |
238 | xxxx.... | |
239 | xx...... | |
240 | */ | |
241 | static unsigned short right_triangle_bits[] = { | |
242 | 0xc0, 0xf0, 0xf8, 0xfc, 0xfc, 0xf8, 0xf0, 0xc0}; | |
6b61353c KH |
243 | |
244 | /* First line bitmap. An top-left angle. */ | |
245 | /* | |
246 | xxxxxx.. | |
247 | xxxxxx.. | |
248 | xx...... | |
249 | xx...... | |
250 | xx...... | |
251 | xx...... | |
252 | xx...... | |
253 | ........ | |
254 | */ | |
255 | static unsigned short top_left_angle_bits[] = { | |
256 | 0xfc, 0xfc, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0x00}; | |
257 | ||
258 | /* First line bitmap. An right-up angle. */ | |
259 | /* | |
260 | ..xxxxxx | |
261 | ..xxxxxx | |
262 | ......xx | |
263 | ......xx | |
264 | ......xx | |
265 | ......xx | |
266 | ......xx | |
267 | ........ | |
268 | */ | |
269 | static unsigned short top_right_angle_bits[] = { | |
270 | 0x3f, 0x3f, 0x03, 0x03, 0x03, 0x03, 0x03, 0x00}; | |
271 | ||
272 | /* Last line bitmap. An left-down angle. */ | |
273 | /* | |
274 | ........ | |
275 | xx...... | |
276 | xx...... | |
277 | xx...... | |
278 | xx...... | |
279 | xx...... | |
280 | xxxxxx.. | |
281 | xxxxxx.. | |
282 | */ | |
283 | static unsigned short bottom_left_angle_bits[] = { | |
284 | 0x00, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xfc, 0xfc}; | |
285 | ||
286 | /* Last line bitmap. An right-down angle. */ | |
287 | /* | |
288 | ........ | |
289 | ......xx | |
290 | ......xx | |
291 | ......xx | |
292 | ......xx | |
293 | ......xx | |
294 | ..xxxxxx | |
295 | ..xxxxxx | |
296 | */ | |
297 | static unsigned short bottom_right_angle_bits[] = { | |
298 | 0x00, 0x03, 0x03, 0x03, 0x03, 0x03, 0x3f, 0x3f}; | |
299 | ||
300 | /* First/last line bitmap. An left bracket. */ | |
301 | /* | |
302 | xxxxxx.. | |
303 | xxxxxx.. | |
304 | xx...... | |
305 | xx...... | |
306 | xx...... | |
307 | xx...... | |
308 | xx...... | |
309 | xx...... | |
310 | xxxxxx.. | |
311 | xxxxxx.. | |
312 | */ | |
313 | static unsigned short left_bracket_bits[] = { | |
314 | 0xfc, 0xfc, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xfc, 0xfc}; | |
315 | ||
316 | /* First/last line bitmap. An right bracket. */ | |
317 | /* | |
318 | ..xxxxxx | |
319 | ..xxxxxx | |
320 | ......xx | |
321 | ......xx | |
322 | ......xx | |
323 | ......xx | |
324 | ......xx | |
325 | ......xx | |
326 | ..xxxxxx | |
327 | ..xxxxxx | |
328 | */ | |
329 | static unsigned short right_bracket_bits[] = { | |
330 | 0x3f, 0x3f, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x3f, 0x3f}; | |
331 | ||
332 | /* Filled box cursor bitmap. A filled box; max 13 pixels high. */ | |
333 | /* | |
334 | xxxxxxx. | |
335 | xxxxxxx. | |
336 | xxxxxxx. | |
337 | xxxxxxx. | |
338 | xxxxxxx. | |
339 | xxxxxxx. | |
340 | xxxxxxx. | |
341 | xxxxxxx. | |
342 | xxxxxxx. | |
343 | xxxxxxx. | |
344 | xxxxxxx. | |
345 | xxxxxxx. | |
346 | xxxxxxx. | |
347 | */ | |
7840b332 | 348 | static unsigned short filled_rectangle_bits[] = { |
6b61353c KH |
349 | 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe}; |
350 | ||
351 | /* Hollow box cursor bitmap. A hollow box; max 13 pixels high. */ | |
352 | /* | |
353 | xxxxxxx. | |
354 | x.....x. | |
355 | x.....x. | |
356 | x.....x. | |
357 | x.....x. | |
358 | x.....x. | |
359 | x.....x. | |
360 | x.....x. | |
361 | x.....x. | |
362 | x.....x. | |
363 | x.....x. | |
364 | x.....x. | |
365 | xxxxxxx. | |
366 | */ | |
7840b332 | 367 | static unsigned short hollow_rectangle_bits[] = { |
6b61353c KH |
368 | 0xfe, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0xfe}; |
369 | ||
7840b332 KS |
370 | /* Hollow square bitmap. */ |
371 | /* | |
372 | .xxxxxx. | |
373 | .x....x. | |
374 | .x....x. | |
375 | .x....x. | |
376 | .x....x. | |
377 | .xxxxxx. | |
378 | */ | |
379 | static unsigned short hollow_square_bits[] = { | |
380 | 0x7e, 0x42, 0x42, 0x42, 0x42, 0x7e}; | |
381 | ||
382 | /* Filled square bitmap. */ | |
383 | /* | |
384 | .xxxxxx. | |
385 | .xxxxxx. | |
386 | .xxxxxx. | |
387 | .xxxxxx. | |
388 | .xxxxxx. | |
389 | .xxxxxx. | |
390 | */ | |
391 | static unsigned short filled_square_bits[] = { | |
392 | 0x7e, 0x7e, 0x7e, 0x7e, 0x7e, 0x7e}; | |
393 | ||
6b61353c KH |
394 | /* Bar cursor bitmap. A vertical bar; max 13 pixels high. */ |
395 | /* | |
396 | xx...... | |
397 | xx...... | |
398 | xx...... | |
399 | xx...... | |
400 | xx...... | |
401 | xx...... | |
402 | xx...... | |
403 | xx...... | |
404 | xx...... | |
405 | xx...... | |
406 | xx...... | |
407 | xx...... | |
408 | xx...... | |
409 | */ | |
7840b332 | 410 | static unsigned short vertical_bar_bits[] = { |
6b61353c KH |
411 | 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0}; |
412 | ||
68a33afa | 413 | /* HBar cursor bitmap. A horizontal bar; 2 pixels high. */ |
6b61353c KH |
414 | /* |
415 | xxxxxxx. | |
416 | xxxxxxx. | |
417 | */ | |
68a33afa | 418 | static unsigned short horizontal_bar_bits[] = { |
6b61353c KH |
419 | 0xfe, 0xfe}; |
420 | ||
421 | ||
422 | /* Bitmap drawn to indicate lines not displaying text if | |
423 | `indicate-empty-lines' is non-nil. */ | |
424 | /* | |
425 | ........ | |
426 | ..xxxx.. | |
427 | ........ | |
428 | ........ | |
429 | ..xxxx.. | |
430 | ........ | |
431 | */ | |
7840b332 | 432 | static unsigned short empty_line_bits[] = { |
6b61353c KH |
433 | 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, |
434 | 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, | |
435 | 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, | |
436 | 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, | |
437 | 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, | |
438 | 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, | |
439 | 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, | |
440 | 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00}; | |
441 | ||
6b61353c KH |
442 | |
443 | #define BYTES_PER_BITMAP_ROW (sizeof (unsigned short)) | |
444 | #define STANDARD_BITMAP_HEIGHT(bits) (sizeof (bits)/BYTES_PER_BITMAP_ROW) | |
445 | #define FRBITS(bits) bits, STANDARD_BITMAP_HEIGHT (bits) | |
446 | ||
7840b332 KS |
447 | /* NOTE: The order of these bitmaps must match the sequence |
448 | used in fringe.el to define the corresponding symbols. */ | |
449 | ||
450 | struct fringe_bitmap standard_bitmaps[] = | |
6b61353c KH |
451 | { |
452 | { NULL, 0, 0, 0, 0, 0 }, /* NO_FRINGE_BITMAP */ | |
7840b332 | 453 | { FRBITS (question_mark_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, |
6b61353c KH |
454 | { FRBITS (left_arrow_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, |
455 | { FRBITS (right_arrow_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, | |
456 | { FRBITS (up_arrow_bits), 8, 0, ALIGN_BITMAP_TOP, 0 }, | |
457 | { FRBITS (down_arrow_bits), 8, 0, ALIGN_BITMAP_BOTTOM, 0 }, | |
7840b332 KS |
458 | { FRBITS (left_curly_arrow_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, |
459 | { FRBITS (right_curly_arrow_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, | |
460 | { FRBITS (left_triangle_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, | |
461 | { FRBITS (right_triangle_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, | |
6b61353c KH |
462 | { FRBITS (top_left_angle_bits), 8, 0, ALIGN_BITMAP_TOP, 0 }, |
463 | { FRBITS (top_right_angle_bits), 8, 0, ALIGN_BITMAP_TOP, 0 }, | |
464 | { FRBITS (bottom_left_angle_bits), 8, 0, ALIGN_BITMAP_BOTTOM, 0 }, | |
465 | { FRBITS (bottom_right_angle_bits), 8, 0, ALIGN_BITMAP_BOTTOM, 0 }, | |
466 | { FRBITS (left_bracket_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, | |
467 | { FRBITS (right_bracket_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, | |
7840b332 KS |
468 | { FRBITS (filled_rectangle_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, |
469 | { FRBITS (hollow_rectangle_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, | |
470 | { FRBITS (filled_square_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, | |
6b61353c | 471 | { FRBITS (hollow_square_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, |
7840b332 | 472 | { FRBITS (vertical_bar_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 }, |
68a33afa | 473 | { FRBITS (horizontal_bar_bits), 8, 0, ALIGN_BITMAP_BOTTOM, 0 }, |
7840b332 | 474 | { FRBITS (empty_line_bits), 8, 3, ALIGN_BITMAP_TOP, 0 }, |
6b61353c KH |
475 | }; |
476 | ||
7840b332 KS |
477 | #define NO_FRINGE_BITMAP 0 |
478 | #define UNDEF_FRINGE_BITMAP 1 | |
479 | #define MAX_STANDARD_FRINGE_BITMAPS (sizeof(standard_bitmaps)/sizeof(standard_bitmaps[0])) | |
480 | ||
ad67849e | 481 | static struct fringe_bitmap **fringe_bitmaps; |
49ce2dbd | 482 | static Lisp_Object *fringe_faces; |
ad67849e | 483 | static int max_fringe_bitmaps; |
6b61353c | 484 | |
edfda783 | 485 | int max_used_fringe_bitmap = MAX_STANDARD_FRINGE_BITMAPS; |
6b61353c | 486 | |
4cce0ab7 KS |
487 | |
488 | /* Lookup bitmap number for symbol BITMAP. | |
489 | Return 0 if not a bitmap. */ | |
6b61353c KH |
490 | |
491 | int | |
4cce0ab7 | 492 | lookup_fringe_bitmap (bitmap) |
7a2a85be KS |
493 | Lisp_Object bitmap; |
494 | { | |
495 | int bn; | |
496 | ||
4cce0ab7 | 497 | bitmap = Fget (bitmap, Qfringe); |
7a2a85be KS |
498 | if (!INTEGERP (bitmap)) |
499 | return 0; | |
500 | ||
501 | bn = XINT (bitmap); | |
4cce0ab7 KS |
502 | if (bn > NO_FRINGE_BITMAP |
503 | && bn < max_used_fringe_bitmap | |
504 | && (bn < MAX_STANDARD_FRINGE_BITMAPS | |
505 | || fringe_bitmaps[bn] != NULL)) | |
506 | return bn; | |
507 | ||
508 | return 0; | |
7a2a85be KS |
509 | } |
510 | ||
511 | /* Get fringe bitmap name for bitmap number BN. | |
512 | ||
513 | Found by traversing Vfringe_bitmaps comparing BN to the | |
514 | fringe property for each symbol. | |
515 | ||
516 | Return BN if not found in Vfringe_bitmaps. */ | |
517 | ||
518 | static Lisp_Object | |
519 | get_fringe_bitmap_name (bn) | |
520 | int bn; | |
521 | { | |
522 | Lisp_Object bitmaps; | |
523 | Lisp_Object num; | |
524 | ||
525 | /* Zero means no bitmap -- return nil. */ | |
526 | if (bn <= 0) | |
527 | return Qnil; | |
528 | ||
529 | bitmaps = Vfringe_bitmaps; | |
530 | num = make_number (bn); | |
531 | ||
532 | while (CONSP (bitmaps)) | |
533 | { | |
534 | Lisp_Object bitmap = XCAR (bitmaps); | |
535 | if (EQ (num, Fget (bitmap, Qfringe))) | |
536 | return bitmap; | |
537 | bitmaps = XCDR (bitmaps); | |
538 | } | |
539 | ||
540 | return num; | |
541 | } | |
542 | ||
543 | ||
6b61353c KH |
544 | /* Draw the bitmap WHICH in one of the left or right fringes of |
545 | window W. ROW is the glyph row for which to display the bitmap; it | |
546 | determines the vertical position at which the bitmap has to be | |
547 | drawn. | |
548 | LEFT_P is 1 for left fringe, 0 for right fringe. | |
549 | */ | |
550 | ||
7840b332 | 551 | static void |
6b61353c KH |
552 | draw_fringe_bitmap_1 (w, row, left_p, overlay, which) |
553 | struct window *w; | |
554 | struct glyph_row *row; | |
555 | int left_p, overlay; | |
7840b332 | 556 | int which; |
6b61353c KH |
557 | { |
558 | struct frame *f = XFRAME (WINDOW_FRAME (w)); | |
559 | struct draw_fringe_bitmap_params p; | |
560 | struct fringe_bitmap *fb; | |
561 | int period; | |
562 | int face_id = DEFAULT_FACE_ID; | |
563 | ||
564 | p.cursor_p = 0; | |
565 | p.overlay_p = (overlay & 1) == 1; | |
566 | p.cursor_p = (overlay & 2) == 2; | |
567 | ||
568 | if (which != NO_FRINGE_BITMAP) | |
569 | { | |
570 | } | |
571 | else if (left_p) | |
572 | { | |
573 | which = row->left_fringe_bitmap; | |
574 | face_id = row->left_fringe_face_id; | |
575 | } | |
576 | else | |
577 | { | |
578 | which = row->right_fringe_bitmap; | |
579 | face_id = row->right_fringe_face_id; | |
580 | } | |
581 | ||
582 | if (face_id == DEFAULT_FACE_ID) | |
49ce2dbd KS |
583 | { |
584 | Lisp_Object face; | |
585 | ||
586 | if ((face = fringe_faces[which], NILP (face)) | |
5c538596 | 587 | || (face_id = lookup_derived_face (f, face, FRINGE_FACE_ID, 0), |
308785c1 | 588 | face_id < 0)) |
49ce2dbd KS |
589 | face_id = FRINGE_FACE_ID; |
590 | } | |
6b61353c KH |
591 | |
592 | fb = fringe_bitmaps[which]; | |
593 | if (fb == NULL) | |
594 | fb = &standard_bitmaps[which < MAX_STANDARD_FRINGE_BITMAPS | |
595 | ? which : UNDEF_FRINGE_BITMAP]; | |
596 | ||
597 | period = fb->period; | |
598 | ||
599 | /* Convert row to frame coordinates. */ | |
600 | p.y = WINDOW_TO_FRAME_PIXEL_Y (w, row->y); | |
601 | ||
602 | p.which = which; | |
603 | p.bits = fb->bits; | |
604 | p.wd = fb->width; | |
605 | ||
606 | p.h = fb->height; | |
607 | p.dh = (period > 0 ? (p.y % period) : 0); | |
608 | p.h -= p.dh; | |
609 | /* Clip bitmap if too high. */ | |
610 | if (p.h > row->height) | |
611 | p.h = row->height; | |
612 | ||
613 | p.face = FACE_FROM_ID (f, face_id); | |
614 | ||
615 | if (p.face == NULL) | |
616 | { | |
49ce2dbd KS |
617 | /* This could happen after clearing face cache. |
618 | But it shouldn't happen anymore. ++kfs */ | |
6b61353c KH |
619 | return; |
620 | } | |
621 | ||
622 | PREPARE_FACE_FOR_DISPLAY (f, p.face); | |
623 | ||
624 | /* Clear left fringe if no bitmap to draw or if bitmap doesn't fill | |
625 | the fringe. */ | |
626 | p.bx = -1; | |
627 | if (left_p) | |
628 | { | |
629 | int wd = WINDOW_LEFT_FRINGE_WIDTH (w); | |
630 | int x = window_box_left (w, (WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w) | |
631 | ? LEFT_MARGIN_AREA | |
632 | : TEXT_AREA)); | |
633 | if (p.wd > wd) | |
634 | p.wd = wd; | |
635 | p.x = x - p.wd - (wd - p.wd) / 2; | |
636 | ||
637 | if (p.wd < wd || row->height > p.h) | |
638 | { | |
639 | /* If W has a vertical border to its left, don't draw over it. */ | |
640 | wd -= ((!WINDOW_LEFTMOST_P (w) | |
641 | && !WINDOW_HAS_VERTICAL_SCROLL_BAR (w)) | |
642 | ? 1 : 0); | |
643 | p.bx = x - wd; | |
644 | p.nx = wd; | |
645 | } | |
646 | } | |
647 | else | |
648 | { | |
649 | int x = window_box_right (w, | |
650 | (WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w) | |
651 | ? RIGHT_MARGIN_AREA | |
652 | : TEXT_AREA)); | |
653 | int wd = WINDOW_RIGHT_FRINGE_WIDTH (w); | |
654 | if (p.wd > wd) | |
655 | p.wd = wd; | |
656 | p.x = x + (wd - p.wd) / 2; | |
657 | /* Clear right fringe if no bitmap to draw of if bitmap doesn't fill | |
658 | the fringe. */ | |
659 | if (p.wd < wd || row->height > p.h) | |
660 | { | |
661 | p.bx = x; | |
662 | p.nx = wd; | |
663 | } | |
664 | } | |
665 | ||
666 | if (p.bx >= 0) | |
667 | { | |
668 | int header_line_height = WINDOW_HEADER_LINE_HEIGHT (w); | |
669 | ||
670 | p.by = WINDOW_TO_FRAME_PIXEL_Y (w, max (header_line_height, row->y)); | |
671 | p.ny = row->visible_height; | |
672 | } | |
673 | ||
674 | /* Adjust y to the offset in the row to start drawing the bitmap. */ | |
675 | switch (fb->align) | |
676 | { | |
677 | case ALIGN_BITMAP_CENTER: | |
678 | p.y += (row->height - p.h) / 2; | |
679 | break; | |
680 | case ALIGN_BITMAP_BOTTOM: | |
681 | p.h = fb->height; | |
682 | p.y += (row->visible_height - p.h); | |
683 | break; | |
684 | case ALIGN_BITMAP_TOP: | |
685 | break; | |
686 | } | |
687 | ||
e581a466 | 688 | FRAME_RIF (f)->draw_fringe_bitmap (w, row, &p); |
6b61353c KH |
689 | } |
690 | ||
7840b332 KS |
691 | static int |
692 | get_logical_cursor_bitmap (w, cursor) | |
693 | struct window *w; | |
694 | Lisp_Object cursor; | |
695 | { | |
696 | Lisp_Object cmap, bm = Qnil; | |
697 | ||
698 | if ((cmap = XBUFFER (w->buffer)->fringe_cursor_alist), !NILP (cmap)) | |
699 | { | |
700 | bm = Fassq (cursor, cmap); | |
701 | if (CONSP (bm)) | |
702 | { | |
703 | if ((bm = XCDR (bm)), NILP (bm)) | |
704 | return NO_FRINGE_BITMAP; | |
705 | return lookup_fringe_bitmap (bm); | |
706 | } | |
707 | } | |
708 | if (EQ (cmap, buffer_defaults.fringe_cursor_alist)) | |
709 | return NO_FRINGE_BITMAP; | |
710 | bm = Fassq (cursor, buffer_defaults.fringe_cursor_alist); | |
711 | if (!CONSP (bm) || ((bm = XCDR (bm)), NILP (bm))) | |
712 | return NO_FRINGE_BITMAP; | |
713 | return lookup_fringe_bitmap (bm); | |
714 | } | |
715 | ||
716 | static int | |
717 | get_logical_fringe_bitmap (w, bitmap, right_p, partial_p) | |
718 | struct window *w; | |
719 | Lisp_Object bitmap; | |
720 | int right_p, partial_p; | |
721 | { | |
722 | Lisp_Object cmap, bm1 = Qnil, bm2 = Qnil, bm; | |
723 | int ln1 = 0, ln2 = 0; | |
724 | int ix1 = right_p; | |
725 | int ix2 = ix1 + (partial_p ? 2 : 0); | |
726 | ||
727 | /* Lookup in buffer-local fringe-indicator-alist before global alist. | |
728 | ||
729 | Elements are: | |
730 | BITMAP -- use for all | |
731 | (L R) -- use for left right (whether partial or not) | |
732 | (L R PL PR) -- use for left rigth partial-left partial-right | |
733 | If any value in local binding is not present or t, use global value. | |
734 | ||
735 | If partial, lookup partial bitmap in default value if not found here. | |
736 | If not partial, or no partial spec is present, use non-partial bitmap. */ | |
737 | ||
738 | if ((cmap = XBUFFER (w->buffer)->fringe_indicator_alist), !NILP (cmap)) | |
739 | { | |
740 | bm1 = Fassq (bitmap, cmap); | |
741 | if (CONSP (bm1)) | |
742 | { | |
743 | if ((bm1 = XCDR (bm1)), NILP (bm1)) | |
744 | return NO_FRINGE_BITMAP; | |
745 | if (CONSP (bm1)) | |
746 | { | |
747 | ln1 = XINT (Flength (bm1)); | |
748 | if (partial_p) | |
749 | { | |
750 | if (ln1 > ix2) | |
751 | { | |
752 | bm = Fnth (make_number (ix2), bm1); | |
753 | if (!EQ (bm, Qt)) | |
754 | goto found; | |
755 | } | |
756 | } | |
757 | else | |
758 | { | |
759 | if (ln1 > ix1) | |
760 | { | |
761 | bm = Fnth (make_number (ix1), bm1); | |
762 | if (!EQ (bm, Qt)) | |
763 | goto found; | |
764 | } | |
765 | } | |
766 | } | |
767 | else if ((bm = bm1, !EQ (bm, Qt))) | |
768 | goto found; | |
769 | } | |
770 | } | |
771 | ||
772 | if (!EQ (cmap, buffer_defaults.fringe_indicator_alist) | |
773 | && !NILP (buffer_defaults.fringe_indicator_alist)) | |
774 | { | |
775 | bm2 = Fassq (bitmap, buffer_defaults.fringe_indicator_alist); | |
776 | if (CONSP (bm2)) | |
777 | { | |
778 | if ((bm2 = XCDR (bm2)), !NILP (bm2)) | |
779 | { | |
780 | if (CONSP (bm2)) | |
781 | { | |
782 | ln2 = XINT (Flength (bm2)); | |
783 | if (partial_p) | |
784 | { | |
785 | if (ln2 > ix2) | |
786 | { | |
787 | bm = Fnth (make_number (ix2), bm2); | |
788 | if (!EQ (bm, Qt)) | |
789 | goto found; | |
790 | } | |
791 | } | |
792 | } | |
793 | } | |
794 | } | |
795 | } | |
796 | ||
797 | if (ln1 > ix1) | |
798 | { | |
799 | bm = Fnth (make_number (ix1), bm1); | |
800 | if (!EQ (bm, Qt)) | |
801 | goto found; | |
802 | } | |
803 | ||
804 | if (ln2 > ix1) | |
805 | { | |
806 | bm = Fnth (make_number (ix1), bm2); | |
807 | if (!EQ (bm, Qt)) | |
808 | goto found; | |
809 | return NO_FRINGE_BITMAP; | |
810 | } | |
811 | else if ((bm = bm2, NILP (bm))) | |
812 | return NO_FRINGE_BITMAP; | |
813 | ||
814 | found: | |
815 | return lookup_fringe_bitmap (bm); | |
816 | } | |
817 | ||
818 | ||
6b61353c KH |
819 | void |
820 | draw_fringe_bitmap (w, row, left_p) | |
821 | struct window *w; | |
822 | struct glyph_row *row; | |
823 | int left_p; | |
824 | { | |
825 | int overlay = 0; | |
826 | ||
827 | if (!left_p && row->cursor_in_fringe_p) | |
828 | { | |
7840b332 | 829 | Lisp_Object cursor = Qnil; |
6b61353c KH |
830 | |
831 | switch (w->phys_cursor_type) | |
832 | { | |
833 | case HOLLOW_BOX_CURSOR: | |
7840b332 KS |
834 | if (row->visible_height >= STANDARD_BITMAP_HEIGHT (hollow_rectangle_bits)) |
835 | cursor = Qhollow; | |
6b61353c | 836 | else |
7840b332 | 837 | cursor = Qhollow_small; |
6b61353c KH |
838 | break; |
839 | case FILLED_BOX_CURSOR: | |
7840b332 | 840 | cursor = Qbox; |
6b61353c KH |
841 | break; |
842 | case BAR_CURSOR: | |
7840b332 | 843 | cursor = Qbar; |
6b61353c KH |
844 | break; |
845 | case HBAR_CURSOR: | |
7840b332 | 846 | cursor = Qhbar; |
6b61353c KH |
847 | break; |
848 | case NO_CURSOR: | |
849 | default: | |
850 | w->phys_cursor_on_p = 0; | |
851 | row->cursor_in_fringe_p = 0; | |
852 | break; | |
853 | } | |
7840b332 | 854 | if (!NILP (cursor)) |
6b61353c | 855 | { |
7840b332 KS |
856 | int bm = get_logical_cursor_bitmap (w, cursor); |
857 | if (bm != NO_FRINGE_BITMAP) | |
858 | { | |
859 | draw_fringe_bitmap_1 (w, row, 0, 2, bm); | |
860 | overlay = EQ (cursor, Qbox) ? 3 : 1; | |
861 | } | |
6b61353c KH |
862 | } |
863 | } | |
864 | ||
865 | draw_fringe_bitmap_1 (w, row, left_p, overlay, NO_FRINGE_BITMAP); | |
866 | ||
a8b34fae | 867 | if (left_p && row->overlay_arrow_bitmap != NO_FRINGE_BITMAP) |
7dfa5c49 | 868 | draw_fringe_bitmap_1 (w, row, 1, 1, row->overlay_arrow_bitmap); |
6b61353c KH |
869 | } |
870 | ||
871 | ||
872 | /* Draw fringe bitmaps for glyph row ROW on window W. Call this | |
873 | function with input blocked. */ | |
874 | ||
875 | void | |
876 | draw_row_fringe_bitmaps (w, row) | |
877 | struct window *w; | |
878 | struct glyph_row *row; | |
879 | { | |
880 | xassert (interrupt_input_blocked); | |
881 | ||
882 | /* If row is completely invisible, because of vscrolling, we | |
883 | don't have to draw anything. */ | |
884 | if (row->visible_height <= 0) | |
885 | return; | |
886 | ||
887 | if (WINDOW_LEFT_FRINGE_WIDTH (w) != 0) | |
888 | draw_fringe_bitmap (w, row, 1); | |
889 | ||
890 | if (WINDOW_RIGHT_FRINGE_WIDTH (w) != 0) | |
891 | draw_fringe_bitmap (w, row, 0); | |
892 | } | |
893 | ||
894 | /* Draw the fringes of window W. Only fringes for rows marked for | |
11491cbb | 895 | update in redraw_fringe_bitmaps_p are drawn. |
6b61353c | 896 | |
11491cbb KS |
897 | Return >0 if left or right fringe was redrawn in any way. |
898 | ||
899 | If NO_FRINGE is non-zero, also return >0 if either fringe has zero width. | |
900 | ||
901 | A return value >0 indicates that the vertical line between windows | |
902 | needs update (as it may be drawn in the fringe). | |
903 | */ | |
904 | ||
905 | int | |
906 | draw_window_fringes (w, no_fringe) | |
6b61353c | 907 | struct window *w; |
11491cbb | 908 | int no_fringe; |
6b61353c KH |
909 | { |
910 | struct glyph_row *row; | |
911 | int yb = window_text_bottom_y (w); | |
912 | int nrows = w->current_matrix->nrows; | |
913 | int y = 0, rn; | |
11491cbb | 914 | int updated = 0; |
6b61353c KH |
915 | |
916 | if (w->pseudo_window_p) | |
11491cbb KS |
917 | return 0; |
918 | ||
919 | /* Must draw line if no fringe */ | |
920 | if (no_fringe | |
921 | && (WINDOW_LEFT_FRINGE_WIDTH (w) == 0 | |
922 | || WINDOW_RIGHT_FRINGE_WIDTH (w) == 0)) | |
923 | updated++; | |
6b61353c KH |
924 | |
925 | for (y = 0, rn = 0, row = w->current_matrix->rows; | |
926 | y < yb && rn < nrows; | |
927 | y += row->height, ++row, ++rn) | |
928 | { | |
929 | if (!row->redraw_fringe_bitmaps_p) | |
930 | continue; | |
931 | draw_row_fringe_bitmaps (w, row); | |
932 | row->redraw_fringe_bitmaps_p = 0; | |
11491cbb | 933 | updated++; |
6b61353c | 934 | } |
11491cbb KS |
935 | |
936 | return updated; | |
6b61353c KH |
937 | } |
938 | ||
939 | ||
940 | /* Recalculate the bitmaps to show in the fringes of window W. | |
4dadc129 KS |
941 | Only mark rows with modified bitmaps for update in redraw_fringe_bitmaps_p. |
942 | ||
943 | If KEEP_CURRENT_P is 0, update current_matrix too. */ | |
6b61353c KH |
944 | |
945 | int | |
4dadc129 | 946 | update_window_fringes (w, keep_current_p) |
6b61353c | 947 | struct window *w; |
4dadc129 | 948 | int keep_current_p; |
6b61353c KH |
949 | { |
950 | struct glyph_row *row, *cur = 0; | |
951 | int yb = window_text_bottom_y (w); | |
952 | int rn, nrows = w->current_matrix->nrows; | |
953 | int y; | |
954 | int redraw_p = 0; | |
5797a7a0 KS |
955 | Lisp_Object boundary_top = Qnil, boundary_bot = Qnil; |
956 | Lisp_Object arrow_top = Qnil, arrow_bot = Qnil; | |
957 | Lisp_Object empty_pos; | |
958 | Lisp_Object ind = Qnil; | |
7840b332 KS |
959 | #define MAX_BITMAP_CACHE (8*4) |
960 | int bitmap_cache[MAX_BITMAP_CACHE]; | |
6b61353c KH |
961 | |
962 | if (w->pseudo_window_p) | |
963 | return 0; | |
964 | ||
965 | if (!MINI_WINDOW_P (w) | |
966 | && (ind = XBUFFER (w->buffer)->indicate_buffer_boundaries, !NILP (ind))) | |
967 | { | |
5797a7a0 KS |
968 | if (EQ (ind, Qleft) || EQ (ind, Qright)) |
969 | boundary_top = boundary_bot = arrow_top = arrow_bot = ind; | |
970 | else if (CONSP (ind) && CONSP (XCAR (ind))) | |
971 | { | |
972 | Lisp_Object pos; | |
973 | if (pos = Fassq (Qt, ind), !NILP (pos)) | |
974 | boundary_top = boundary_bot = arrow_top = arrow_bot = XCDR (pos); | |
975 | if (pos = Fassq (Qtop, ind), !NILP (pos)) | |
976 | boundary_top = XCDR (pos); | |
977 | if (pos = Fassq (Qbottom, ind), !NILP (pos)) | |
978 | boundary_bot = XCDR (pos); | |
979 | if (pos = Fassq (Qup, ind), !NILP (pos)) | |
980 | arrow_top = XCDR (pos); | |
981 | if (pos = Fassq (Qdown, ind), !NILP (pos)) | |
982 | arrow_bot = XCDR (pos); | |
983 | } | |
6b61353c | 984 | else |
a208b89c KS |
985 | /* Anything else means boundary on left and no arrows. */ |
986 | boundary_top = boundary_bot = Qleft; | |
5797a7a0 | 987 | } |
6b61353c | 988 | |
5797a7a0 KS |
989 | if (!NILP (ind)) |
990 | { | |
26a5d440 | 991 | int done_top = 0, done_bot = 0; |
6b61353c KH |
992 | |
993 | for (y = 0, rn = 0; | |
994 | y < yb && rn < nrows; | |
995 | y += row->height, ++rn) | |
996 | { | |
997 | unsigned indicate_bob_p, indicate_top_line_p; | |
998 | unsigned indicate_eob_p, indicate_bottom_line_p; | |
999 | ||
1000 | row = w->desired_matrix->rows + rn; | |
1001 | if (!row->enabled_p) | |
1002 | row = w->current_matrix->rows + rn; | |
1003 | ||
1004 | indicate_bob_p = row->indicate_bob_p; | |
1005 | indicate_top_line_p = row->indicate_top_line_p; | |
1006 | indicate_eob_p = row->indicate_eob_p; | |
1007 | indicate_bottom_line_p = row->indicate_bottom_line_p; | |
1008 | ||
1009 | row->indicate_bob_p = row->indicate_top_line_p = 0; | |
1010 | row->indicate_eob_p = row->indicate_bottom_line_p = 0; | |
1011 | ||
26a5d440 KS |
1012 | if (!row->mode_line_p) |
1013 | { | |
1014 | if (!done_top) | |
1015 | { | |
18e1c39a KS |
1016 | if (MATRIX_ROW_START_CHARPOS (row) <= BUF_BEGV (XBUFFER (w->buffer)) |
1017 | && !MATRIX_ROW_PARTIALLY_VISIBLE_AT_TOP_P (w, row)) | |
26a5d440 KS |
1018 | row->indicate_bob_p = !NILP (boundary_top); |
1019 | else | |
1020 | row->indicate_top_line_p = !NILP (arrow_top); | |
1021 | done_top = 1; | |
1022 | } | |
6b61353c | 1023 | |
26a5d440 KS |
1024 | if (!done_bot) |
1025 | { | |
18e1c39a KS |
1026 | if (MATRIX_ROW_END_CHARPOS (row) >= BUF_ZV (XBUFFER (w->buffer)) |
1027 | && !MATRIX_ROW_PARTIALLY_VISIBLE_AT_BOTTOM_P (w, row)) | |
26a5d440 KS |
1028 | row->indicate_eob_p = !NILP (boundary_bot), done_bot = 1; |
1029 | else if (y + row->height >= yb) | |
1030 | row->indicate_bottom_line_p = !NILP (arrow_bot), done_bot = 1; | |
1031 | } | |
1032 | } | |
6b61353c KH |
1033 | |
1034 | if (indicate_bob_p != row->indicate_bob_p | |
1035 | || indicate_top_line_p != row->indicate_top_line_p | |
1036 | || indicate_eob_p != row->indicate_eob_p | |
1037 | || indicate_bottom_line_p != row->indicate_bottom_line_p) | |
1038 | row->redraw_fringe_bitmaps_p = 1; | |
1039 | } | |
1040 | } | |
1041 | ||
5797a7a0 KS |
1042 | empty_pos = XBUFFER (w->buffer)->indicate_empty_lines; |
1043 | if (!NILP (empty_pos) && !EQ (empty_pos, Qright)) | |
1044 | empty_pos = WINDOW_LEFT_FRINGE_WIDTH (w) == 0 ? Qright : Qleft; | |
6b61353c | 1045 | |
7840b332 KS |
1046 | for (y = 0; y < MAX_BITMAP_CACHE; y++) |
1047 | bitmap_cache[y] = -1; | |
1048 | ||
1049 | #define LEFT_FRINGE(cache, which, partial_p) \ | |
1050 | (bitmap_cache[cache*4+partial_p] >= 0 \ | |
1051 | ? bitmap_cache[cache*4+partial_p] \ | |
1052 | : (bitmap_cache[cache*4+partial_p] = \ | |
1053 | get_logical_fringe_bitmap (w, which, 0, partial_p))) | |
1054 | ||
1055 | #define RIGHT_FRINGE(cache, which, partial_p) \ | |
1056 | (bitmap_cache[cache*4+2+partial_p] >= 0 \ | |
1057 | ? bitmap_cache[cache*4+2+partial_p] \ | |
1058 | : (bitmap_cache[cache*4+2+partial_p] = \ | |
1059 | get_logical_fringe_bitmap (w, which, 1, partial_p))) | |
1060 | ||
1061 | ||
6b61353c KH |
1062 | for (y = 0, rn = 0; |
1063 | y < yb && rn < nrows; | |
1064 | y += row->height, rn++) | |
1065 | { | |
7840b332 | 1066 | int left, right; |
6b61353c KH |
1067 | unsigned left_face_id, right_face_id; |
1068 | ||
1069 | row = w->desired_matrix->rows + rn; | |
1070 | cur = w->current_matrix->rows + rn; | |
1071 | if (!row->enabled_p) | |
1072 | row = cur; | |
1073 | ||
1074 | left_face_id = right_face_id = DEFAULT_FACE_ID; | |
1075 | ||
1076 | /* Decide which bitmap to draw in the left fringe. */ | |
1077 | if (WINDOW_LEFT_FRINGE_WIDTH (w) == 0) | |
1078 | left = NO_FRINGE_BITMAP; | |
1079 | else if (row->left_user_fringe_bitmap != NO_FRINGE_BITMAP) | |
1080 | { | |
1081 | left = row->left_user_fringe_bitmap; | |
1082 | left_face_id = row->left_user_fringe_face_id; | |
1083 | } | |
cfd3af7a | 1084 | else if (row->truncated_on_left_p) |
7840b332 | 1085 | left = LEFT_FRINGE(0, Qtruncation, 0); |
5797a7a0 KS |
1086 | else if (row->indicate_bob_p && EQ (boundary_top, Qleft)) |
1087 | left = ((row->indicate_eob_p && EQ (boundary_bot, Qleft)) | |
7840b332 KS |
1088 | ? LEFT_FRINGE (1, Qtop_bottom, row->ends_at_zv_p) |
1089 | : LEFT_FRINGE (2, Qtop, 0)); | |
5797a7a0 | 1090 | else if (row->indicate_eob_p && EQ (boundary_bot, Qleft)) |
7840b332 | 1091 | left = LEFT_FRINGE (3, Qbottom, row->ends_at_zv_p); |
6b61353c | 1092 | else if (MATRIX_ROW_CONTINUATION_LINE_P (row)) |
7840b332 | 1093 | left = LEFT_FRINGE (4, Qcontinuation, 0); |
5797a7a0 | 1094 | else if (row->indicate_empty_line_p && EQ (empty_pos, Qleft)) |
7840b332 | 1095 | left = LEFT_FRINGE (5, Qempty_line, 0); |
5797a7a0 | 1096 | else if (row->indicate_top_line_p && EQ (arrow_top, Qleft)) |
7840b332 | 1097 | left = LEFT_FRINGE (6, Qup, 0); |
5797a7a0 | 1098 | else if (row->indicate_bottom_line_p && EQ (arrow_bot, Qleft)) |
7840b332 | 1099 | left = LEFT_FRINGE (7, Qdown, 0); |
6b61353c KH |
1100 | else |
1101 | left = NO_FRINGE_BITMAP; | |
1102 | ||
1103 | /* Decide which bitmap to draw in the right fringe. */ | |
1104 | if (WINDOW_RIGHT_FRINGE_WIDTH (w) == 0) | |
1105 | right = NO_FRINGE_BITMAP; | |
1106 | else if (row->right_user_fringe_bitmap != NO_FRINGE_BITMAP) | |
1107 | { | |
1108 | right = row->right_user_fringe_bitmap; | |
1109 | right_face_id = row->right_user_fringe_face_id; | |
1110 | } | |
cfd3af7a | 1111 | else if (row->truncated_on_right_p) |
7840b332 | 1112 | right = RIGHT_FRINGE (0, Qtruncation, 0); |
5797a7a0 KS |
1113 | else if (row->indicate_bob_p && EQ (boundary_top, Qright)) |
1114 | right = ((row->indicate_eob_p && EQ (boundary_bot, Qright)) | |
7840b332 KS |
1115 | ? RIGHT_FRINGE (1, Qtop_bottom, row->ends_at_zv_p) |
1116 | : RIGHT_FRINGE (2, Qtop, 0)); | |
5797a7a0 | 1117 | else if (row->indicate_eob_p && EQ (boundary_bot, Qright)) |
7840b332 | 1118 | right = RIGHT_FRINGE (3, Qbottom, row->ends_at_zv_p); |
6b61353c | 1119 | else if (row->continued_p) |
7840b332 | 1120 | right = RIGHT_FRINGE (4, Qcontinuation, 0); |
5797a7a0 | 1121 | else if (row->indicate_top_line_p && EQ (arrow_top, Qright)) |
7840b332 | 1122 | right = RIGHT_FRINGE (6, Qup, 0); |
5797a7a0 | 1123 | else if (row->indicate_bottom_line_p && EQ (arrow_bot, Qright)) |
7840b332 | 1124 | right = RIGHT_FRINGE (7, Qdown, 0); |
5797a7a0 | 1125 | else if (row->indicate_empty_line_p && EQ (empty_pos, Qright)) |
7840b332 | 1126 | right = RIGHT_FRINGE (5, Qempty_line, 0); |
6b61353c KH |
1127 | else |
1128 | right = NO_FRINGE_BITMAP; | |
1129 | ||
4dadc129 | 1130 | if (row->y != cur->y |
6b61353c | 1131 | || row->visible_height != cur->visible_height |
81544a1d | 1132 | || row->ends_at_zv_p != cur->ends_at_zv_p |
6b61353c KH |
1133 | || left != cur->left_fringe_bitmap |
1134 | || right != cur->right_fringe_bitmap | |
1135 | || left_face_id != cur->left_fringe_face_id | |
1136 | || right_face_id != cur->right_fringe_face_id | |
1137 | || cur->redraw_fringe_bitmaps_p) | |
1138 | { | |
4dadc129 KS |
1139 | redraw_p = row->redraw_fringe_bitmaps_p = 1; |
1140 | if (!keep_current_p) | |
1141 | { | |
1142 | cur->redraw_fringe_bitmaps_p = 1; | |
1143 | cur->left_fringe_bitmap = left; | |
1144 | cur->right_fringe_bitmap = right; | |
1145 | cur->left_fringe_face_id = left_face_id; | |
1146 | cur->right_fringe_face_id = right_face_id; | |
1147 | } | |
6b61353c KH |
1148 | } |
1149 | ||
7dfa5c49 KS |
1150 | if (row->overlay_arrow_bitmap < 0) |
1151 | row->overlay_arrow_bitmap = get_logical_fringe_bitmap (w, Qoverlay_arrow, 0, 0); | |
1152 | ||
a8b34fae | 1153 | if (row->overlay_arrow_bitmap != cur->overlay_arrow_bitmap) |
6b61353c KH |
1154 | { |
1155 | redraw_p = row->redraw_fringe_bitmaps_p = cur->redraw_fringe_bitmaps_p = 1; | |
a8b34fae | 1156 | cur->overlay_arrow_bitmap = row->overlay_arrow_bitmap; |
6b61353c KH |
1157 | } |
1158 | ||
1159 | row->left_fringe_bitmap = left; | |
1160 | row->right_fringe_bitmap = right; | |
1161 | row->left_fringe_face_id = left_face_id; | |
1162 | row->right_fringe_face_id = right_face_id; | |
81544a1d KS |
1163 | |
1164 | if (rn > 0 && row->redraw_fringe_bitmaps_p) | |
1165 | row[-1].redraw_fringe_bitmaps_p = cur[-1].redraw_fringe_bitmaps_p = 1; | |
6b61353c KH |
1166 | } |
1167 | ||
4dadc129 | 1168 | return redraw_p && !keep_current_p; |
6b61353c KH |
1169 | } |
1170 | ||
1171 | ||
1172 | /* Compute actual fringe widths for frame F. | |
1173 | ||
1174 | If REDRAW is 1, redraw F if the fringe settings was actually | |
1175 | modified and F is visible. | |
1176 | ||
1177 | Since the combined left and right fringe must occupy an integral | |
1178 | number of columns, we may need to add some pixels to each fringe. | |
1179 | Typically, we add an equal amount (+/- 1 pixel) to each fringe, | |
1180 | but a negative width value is taken literally (after negating it). | |
1181 | ||
11491cbb | 1182 | We never make the fringes narrower than specified. |
6b61353c KH |
1183 | */ |
1184 | ||
1185 | void | |
1186 | compute_fringe_widths (f, redraw) | |
1187 | struct frame *f; | |
1188 | int redraw; | |
1189 | { | |
1190 | int o_left = FRAME_LEFT_FRINGE_WIDTH (f); | |
1191 | int o_right = FRAME_RIGHT_FRINGE_WIDTH (f); | |
1192 | int o_cols = FRAME_FRINGE_COLS (f); | |
1193 | ||
1194 | Lisp_Object left_fringe = Fassq (Qleft_fringe, f->param_alist); | |
1195 | Lisp_Object right_fringe = Fassq (Qright_fringe, f->param_alist); | |
1196 | int left_fringe_width, right_fringe_width; | |
1197 | ||
1198 | if (!NILP (left_fringe)) | |
1199 | left_fringe = Fcdr (left_fringe); | |
1200 | if (!NILP (right_fringe)) | |
1201 | right_fringe = Fcdr (right_fringe); | |
1202 | ||
1203 | left_fringe_width = ((NILP (left_fringe) || !INTEGERP (left_fringe)) ? 8 : | |
1204 | XINT (left_fringe)); | |
1205 | right_fringe_width = ((NILP (right_fringe) || !INTEGERP (right_fringe)) ? 8 : | |
1206 | XINT (right_fringe)); | |
1207 | ||
1208 | if (left_fringe_width || right_fringe_width) | |
1209 | { | |
1210 | int left_wid = left_fringe_width >= 0 ? left_fringe_width : -left_fringe_width; | |
1211 | int right_wid = right_fringe_width >= 0 ? right_fringe_width : -right_fringe_width; | |
1212 | int conf_wid = left_wid + right_wid; | |
1213 | int font_wid = FRAME_COLUMN_WIDTH (f); | |
1214 | int cols = (left_wid + right_wid + font_wid-1) / font_wid; | |
1215 | int real_wid = cols * font_wid; | |
1216 | if (left_wid && right_wid) | |
1217 | { | |
1218 | if (left_fringe_width < 0) | |
1219 | { | |
1220 | /* Left fringe width is fixed, adjust right fringe if necessary */ | |
1221 | FRAME_LEFT_FRINGE_WIDTH (f) = left_wid; | |
1222 | FRAME_RIGHT_FRINGE_WIDTH (f) = real_wid - left_wid; | |
1223 | } | |
1224 | else if (right_fringe_width < 0) | |
1225 | { | |
1226 | /* Right fringe width is fixed, adjust left fringe if necessary */ | |
1227 | FRAME_LEFT_FRINGE_WIDTH (f) = real_wid - right_wid; | |
1228 | FRAME_RIGHT_FRINGE_WIDTH (f) = right_wid; | |
1229 | } | |
1230 | else | |
1231 | { | |
1232 | /* Adjust both fringes with an equal amount. | |
1233 | Note that we are doing integer arithmetic here, so don't | |
1234 | lose a pixel if the total width is an odd number. */ | |
1235 | int fill = real_wid - conf_wid; | |
1236 | FRAME_LEFT_FRINGE_WIDTH (f) = left_wid + fill/2; | |
1237 | FRAME_RIGHT_FRINGE_WIDTH (f) = right_wid + fill - fill/2; | |
1238 | } | |
1239 | } | |
1240 | else if (left_fringe_width) | |
1241 | { | |
1242 | FRAME_LEFT_FRINGE_WIDTH (f) = real_wid; | |
1243 | FRAME_RIGHT_FRINGE_WIDTH (f) = 0; | |
1244 | } | |
1245 | else | |
1246 | { | |
1247 | FRAME_LEFT_FRINGE_WIDTH (f) = 0; | |
1248 | FRAME_RIGHT_FRINGE_WIDTH (f) = real_wid; | |
1249 | } | |
1250 | FRAME_FRINGE_COLS (f) = cols; | |
1251 | } | |
1252 | else | |
1253 | { | |
1254 | FRAME_LEFT_FRINGE_WIDTH (f) = 0; | |
1255 | FRAME_RIGHT_FRINGE_WIDTH (f) = 0; | |
1256 | FRAME_FRINGE_COLS (f) = 0; | |
1257 | } | |
1258 | ||
1259 | if (redraw && FRAME_VISIBLE_P (f)) | |
1260 | if (o_left != FRAME_LEFT_FRINGE_WIDTH (f) || | |
1261 | o_right != FRAME_RIGHT_FRINGE_WIDTH (f) || | |
1262 | o_cols != FRAME_FRINGE_COLS (f)) | |
1263 | redraw_frame (f); | |
1264 | } | |
1265 | ||
7a2a85be | 1266 | |
4cce0ab7 KS |
1267 | /* Free resources used by a user-defined bitmap. */ |
1268 | ||
c3c69bb6 | 1269 | void |
7a2a85be KS |
1270 | destroy_fringe_bitmap (n) |
1271 | int n; | |
6b61353c | 1272 | { |
6b61353c KH |
1273 | struct fringe_bitmap **fbp; |
1274 | ||
49ce2dbd | 1275 | fringe_faces[n] = Qnil; |
6b61353c KH |
1276 | |
1277 | fbp = &fringe_bitmaps[n]; | |
1278 | if (*fbp && (*fbp)->dynamic) | |
1279 | { | |
e581a466 | 1280 | /* XXX Is SELECTED_FRAME OK here? */ |
04ccca97 | 1281 | struct redisplay_interface *rif = FRAME_RIF (SELECTED_FRAME ()); |
f2be4fd0 | 1282 | if (rif && rif->destroy_fringe_bitmap) |
6b61353c KH |
1283 | rif->destroy_fringe_bitmap (n); |
1284 | xfree (*fbp); | |
1285 | *fbp = NULL; | |
1286 | } | |
1287 | ||
1288 | while (max_used_fringe_bitmap > MAX_STANDARD_FRINGE_BITMAPS | |
1289 | && fringe_bitmaps[max_used_fringe_bitmap - 1] == NULL) | |
1290 | max_used_fringe_bitmap--; | |
7a2a85be KS |
1291 | } |
1292 | ||
6b61353c | 1293 | |
7a2a85be KS |
1294 | DEFUN ("destroy-fringe-bitmap", Fdestroy_fringe_bitmap, Sdestroy_fringe_bitmap, |
1295 | 1, 1, 0, | |
1296 | doc: /* Destroy fringe bitmap BITMAP. | |
1297 | If BITMAP overrides a standard fringe bitmap, the original bitmap is restored. */) | |
1298 | (bitmap) | |
1299 | Lisp_Object bitmap; | |
1300 | { | |
1301 | int n; | |
7a2a85be | 1302 | |
4cce0ab7 KS |
1303 | CHECK_SYMBOL (bitmap); |
1304 | n = lookup_fringe_bitmap (bitmap); | |
1305 | if (!n) | |
7a2a85be KS |
1306 | return Qnil; |
1307 | ||
1308 | destroy_fringe_bitmap (n); | |
2d05deef | 1309 | |
4cce0ab7 | 1310 | if (n >= MAX_STANDARD_FRINGE_BITMAPS) |
7a2a85be | 1311 | { |
4cce0ab7 | 1312 | Vfringe_bitmaps = Fdelq (bitmap, Vfringe_bitmaps); |
7a2a85be | 1313 | /* It would be better to remove the fringe property. */ |
4cce0ab7 | 1314 | Fput (bitmap, Qfringe, Qnil); |
7a2a85be | 1315 | } |
4cce0ab7 | 1316 | |
6b61353c KH |
1317 | return Qnil; |
1318 | } | |
1319 | ||
1320 | ||
1321 | /* Initialize bitmap bit. | |
1322 | ||
1323 | On X, we bit-swap the built-in bitmaps and reduce bitmap | |
1324 | from short to char array if width is <= 8 bits. | |
1325 | ||
1326 | On MAC with big-endian CPU, we need to byte-swap each short. | |
1327 | ||
1328 | On W32 and MAC (little endian), there's no need to do this. | |
1329 | */ | |
1330 | ||
2e4e5023 GM |
1331 | #if defined (HAVE_X_WINDOWS) |
1332 | static unsigned char swap_nibble[16] = { | |
1333 | 0x0, 0x8, 0x4, 0xc, /* 0000 1000 0100 1100 */ | |
1334 | 0x2, 0xa, 0x6, 0xe, /* 0010 1010 0110 1110 */ | |
1335 | 0x1, 0x9, 0x5, 0xd, /* 0001 1001 0101 1101 */ | |
1336 | 0x3, 0xb, 0x7, 0xf}; /* 0011 1011 0111 1111 */ | |
1337 | #endif /* HAVE_X_WINDOWS */ | |
1338 | ||
6b61353c KH |
1339 | void |
1340 | init_fringe_bitmap (which, fb, once_p) | |
7840b332 | 1341 | int which; |
6b61353c KH |
1342 | struct fringe_bitmap *fb; |
1343 | int once_p; | |
1344 | { | |
1345 | if (once_p || fb->dynamic) | |
1346 | { | |
1347 | #if defined (HAVE_X_WINDOWS) | |
6b61353c KH |
1348 | unsigned short *bits = fb->bits; |
1349 | int j; | |
1350 | ||
1351 | if (fb->width <= 8) | |
1352 | { | |
1353 | unsigned char *cbits = (unsigned char *)fb->bits; | |
1354 | for (j = 0; j < fb->height; j++) | |
1355 | { | |
1356 | unsigned short b = *bits++; | |
1357 | unsigned char c; | |
1358 | c = (unsigned char)((swap_nibble[b & 0xf] << 4) | |
1359 | | (swap_nibble[(b>>4) & 0xf])); | |
1360 | *cbits++ = (c >> (8 - fb->width)); | |
1361 | } | |
1362 | } | |
1363 | else | |
1364 | { | |
1365 | for (j = 0; j < fb->height; j++) | |
1366 | { | |
1367 | unsigned short b = *bits; | |
1368 | b = (unsigned short)((swap_nibble[b & 0xf] << 12) | |
1369 | | (swap_nibble[(b>>4) & 0xf] << 8) | |
1370 | | (swap_nibble[(b>>8) & 0xf] << 4) | |
1371 | | (swap_nibble[(b>>12) & 0xf])); | |
1372 | *bits++ = (b >> (16 - fb->width)); | |
1373 | } | |
1374 | } | |
1375 | #endif /* HAVE_X_WINDOWS */ | |
1376 | ||
1377 | #if defined (MAC_OS) && defined (WORDS_BIG_ENDIAN) | |
1378 | unsigned short *bits = fb->bits; | |
1379 | int j; | |
1380 | for (j = 0; j < fb->height; j++) | |
1381 | { | |
1382 | unsigned short b = *bits; | |
1383 | *bits++ = ((b >> 8) & 0xff) | ((b & 0xff) << 8); | |
1384 | } | |
1385 | #endif /* MAC_OS && WORDS_BIG_ENDIAN */ | |
1386 | } | |
1387 | ||
1388 | if (!once_p) | |
1389 | { | |
e581a466 | 1390 | /* XXX Is SELECTED_FRAME OK here? */ |
04ccca97 | 1391 | struct redisplay_interface *rif = FRAME_RIF (SELECTED_FRAME ()); |
a284b538 | 1392 | |
7a2a85be | 1393 | destroy_fringe_bitmap (which); |
6b61353c | 1394 | |
f2be4fd0 | 1395 | if (rif && rif->define_fringe_bitmap) |
6b61353c KH |
1396 | rif->define_fringe_bitmap (which, fb->bits, fb->height, fb->width); |
1397 | ||
1398 | fringe_bitmaps[which] = fb; | |
1399 | if (which >= max_used_fringe_bitmap) | |
1400 | max_used_fringe_bitmap = which + 1; | |
1401 | } | |
1402 | } | |
1403 | ||
1404 | ||
1405 | DEFUN ("define-fringe-bitmap", Fdefine_fringe_bitmap, Sdefine_fringe_bitmap, | |
7a2a85be KS |
1406 | 2, 5, 0, |
1407 | doc: /* Define fringe bitmap BITMAP from BITS of size HEIGHT x WIDTH. | |
2faacff7 | 1408 | BITMAP is a symbol identifying the new fringe bitmap. |
6b61353c KH |
1409 | BITS is either a string or a vector of integers. |
1410 | HEIGHT is height of bitmap. If HEIGHT is nil, use length of BITS. | |
1411 | WIDTH must be an integer between 1 and 16, or nil which defaults to 8. | |
7a2a85be | 1412 | Optional fifth arg ALIGN may be one of `top', `center', or `bottom', |
6b61353c | 1413 | indicating the positioning of the bitmap relative to the rows where it |
6b72791f | 1414 | is used; the default is to center the bitmap. Fifth arg may also be a |
6b61353c KH |
1415 | list (ALIGN PERIODIC) where PERIODIC non-nil specifies that the bitmap |
1416 | should be repeated. | |
7a2a85be KS |
1417 | If BITMAP already exists, the existing definition is replaced. */) |
1418 | (bitmap, bits, height, width, align) | |
1419 | Lisp_Object bitmap, bits, height, width, align; | |
6b61353c | 1420 | { |
6b61353c KH |
1421 | int n, h, i, j; |
1422 | unsigned short *b; | |
1423 | struct fringe_bitmap fb, *xfb; | |
1424 | int fill1 = 0, fill2 = 0; | |
7a2a85be | 1425 | |
4cce0ab7 | 1426 | CHECK_SYMBOL (bitmap); |
6b61353c | 1427 | |
11e04b2d KS |
1428 | if (STRINGP (bits)) |
1429 | h = SCHARS (bits); | |
1430 | else if (VECTORP (bits)) | |
1431 | h = XVECTOR (bits)->size; | |
1432 | else | |
7fee0b51 | 1433 | wrong_type_argument (Qsequencep, bits); |
6b61353c KH |
1434 | |
1435 | if (NILP (height)) | |
11e04b2d | 1436 | fb.height = h; |
6b61353c KH |
1437 | else |
1438 | { | |
1439 | CHECK_NUMBER (height); | |
1440 | fb.height = min (XINT (height), 255); | |
11e04b2d | 1441 | if (fb.height > h) |
6b61353c | 1442 | { |
6b61353c KH |
1443 | fill1 = (fb.height - h) / 2; |
1444 | fill2 = fb.height - h - fill1; | |
1445 | } | |
1446 | } | |
1447 | ||
1448 | if (NILP (width)) | |
1449 | fb.width = 8; | |
1450 | else | |
1451 | { | |
1452 | CHECK_NUMBER (width); | |
1453 | fb.width = min (XINT (width), 255); | |
1454 | } | |
1455 | ||
1456 | fb.period = 0; | |
1457 | fb.align = ALIGN_BITMAP_CENTER; | |
1458 | ||
1459 | if (CONSP (align)) | |
1460 | { | |
1461 | Lisp_Object period = XCDR (align); | |
1462 | if (CONSP (period)) | |
1463 | { | |
1464 | period = XCAR (period); | |
1465 | if (!NILP (period)) | |
1466 | { | |
1467 | fb.period = fb.height; | |
1468 | fb.height = 255; | |
1469 | } | |
1470 | } | |
1471 | align = XCAR (align); | |
1472 | } | |
1473 | if (EQ (align, Qtop)) | |
1474 | fb.align = ALIGN_BITMAP_TOP; | |
1475 | else if (EQ (align, Qbottom)) | |
1476 | fb.align = ALIGN_BITMAP_BOTTOM; | |
1477 | else if (!NILP (align) && !EQ (align, Qcenter)) | |
1478 | error ("Bad align argument"); | |
1479 | ||
ad67849e | 1480 | n = lookup_fringe_bitmap (bitmap); |
4cce0ab7 | 1481 | if (!n) |
6b61353c | 1482 | { |
ad67849e | 1483 | if (max_used_fringe_bitmap < max_fringe_bitmaps) |
6b61353c KH |
1484 | n = max_used_fringe_bitmap++; |
1485 | else | |
1486 | { | |
1487 | for (n = MAX_STANDARD_FRINGE_BITMAPS; | |
ad67849e | 1488 | n < max_fringe_bitmaps; |
6b61353c KH |
1489 | n++) |
1490 | if (fringe_bitmaps[n] == NULL) | |
1491 | break; | |
ad67849e KS |
1492 | |
1493 | if (n == max_fringe_bitmaps) | |
1494 | { | |
1495 | if ((max_fringe_bitmaps + 20) > MAX_FRINGE_BITMAPS) | |
1496 | error ("No free fringe bitmap slots"); | |
1497 | ||
1498 | i = max_fringe_bitmaps; | |
1499 | max_fringe_bitmaps += 20; | |
1500 | fringe_bitmaps | |
1501 | = ((struct fringe_bitmap **) | |
1502 | xrealloc (fringe_bitmaps, max_fringe_bitmaps * sizeof (struct fringe_bitmap *))); | |
1503 | fringe_faces | |
50af5100 | 1504 | = (Lisp_Object *) xrealloc (fringe_faces, max_fringe_bitmaps * sizeof (Lisp_Object)); |
ad67849e KS |
1505 | |
1506 | for (; i < max_fringe_bitmaps; i++) | |
1507 | { | |
1508 | fringe_bitmaps[i] = NULL; | |
49ce2dbd | 1509 | fringe_faces[i] = Qnil; |
ad67849e KS |
1510 | } |
1511 | } | |
6b61353c | 1512 | } |
7a2a85be | 1513 | |
4cce0ab7 KS |
1514 | Vfringe_bitmaps = Fcons (bitmap, Vfringe_bitmaps); |
1515 | Fput (bitmap, Qfringe, make_number (n)); | |
6b61353c KH |
1516 | } |
1517 | ||
1518 | fb.dynamic = 1; | |
1519 | ||
1520 | xfb = (struct fringe_bitmap *) xmalloc (sizeof fb | |
1521 | + fb.height * BYTES_PER_BITMAP_ROW); | |
1522 | fb.bits = b = (unsigned short *) (xfb + 1); | |
1523 | bzero (b, fb.height); | |
1524 | ||
1525 | j = 0; | |
1526 | while (j < fb.height) | |
1527 | { | |
1528 | for (i = 0; i < fill1 && j < fb.height; i++) | |
1529 | b[j++] = 0; | |
1530 | for (i = 0; i < h && j < fb.height; i++) | |
1531 | { | |
1532 | Lisp_Object elt = Faref (bits, make_number (i)); | |
1533 | b[j++] = NUMBERP (elt) ? XINT (elt) : 0; | |
1534 | } | |
1535 | for (i = 0; i < fill2 && j < fb.height; i++) | |
1536 | b[j++] = 0; | |
1537 | } | |
1538 | ||
1539 | *xfb = fb; | |
1540 | ||
1541 | init_fringe_bitmap (n, xfb, 0); | |
1542 | ||
4cce0ab7 | 1543 | return bitmap; |
6b61353c KH |
1544 | } |
1545 | ||
1546 | DEFUN ("set-fringe-bitmap-face", Fset_fringe_bitmap_face, Sset_fringe_bitmap_face, | |
1547 | 1, 2, 0, | |
7a2a85be | 1548 | doc: /* Set face for fringe bitmap BITMAP to FACE. |
6b61353c | 1549 | If FACE is nil, reset face to default fringe face. */) |
7a2a85be KS |
1550 | (bitmap, face) |
1551 | Lisp_Object bitmap, face; | |
6b61353c | 1552 | { |
4cce0ab7 | 1553 | int n; |
6b61353c KH |
1554 | int face_id; |
1555 | ||
4cce0ab7 KS |
1556 | CHECK_SYMBOL (bitmap); |
1557 | n = lookup_fringe_bitmap (bitmap); | |
1558 | if (!n) | |
7a2a85be | 1559 | error ("Undefined fringe bitmap"); |
6b61353c KH |
1560 | |
1561 | if (!NILP (face)) | |
1562 | { | |
308785c1 | 1563 | face_id = lookup_derived_face (SELECTED_FRAME (), face, |
5c538596 | 1564 | FRINGE_FACE_ID, 1); |
6b61353c KH |
1565 | if (face_id < 0) |
1566 | error ("No such face"); | |
1567 | } | |
6b61353c | 1568 | |
49ce2dbd | 1569 | fringe_faces[n] = face; |
6b61353c KH |
1570 | |
1571 | return Qnil; | |
1572 | } | |
1573 | ||
1574 | DEFUN ("fringe-bitmaps-at-pos", Ffringe_bitmaps_at_pos, Sfringe_bitmaps_at_pos, | |
1575 | 0, 2, 0, | |
1576 | doc: /* Return fringe bitmaps of row containing position POS in window WINDOW. | |
1577 | If WINDOW is nil, use selected window. If POS is nil, use value of point | |
d3848fe9 KS |
1578 | in that window. Return value is a list (LEFT RIGHT OV), where LEFT |
1579 | is the symbol for the bitmap in the left fringe (or nil if no bitmap), | |
1580 | RIGHT is similar for the right fringe, and OV is non-nil if there is an | |
1581 | overlay arrow in the left fringe. | |
5797a7a0 | 1582 | Return nil if POS is not visible in WINDOW. */) |
6b61353c KH |
1583 | (pos, window) |
1584 | Lisp_Object pos, window; | |
1585 | { | |
1586 | struct window *w; | |
6b61353c KH |
1587 | struct glyph_row *row; |
1588 | int textpos; | |
1589 | ||
1590 | if (NILP (window)) | |
1591 | window = selected_window; | |
1592 | CHECK_WINDOW (window); | |
1593 | w = XWINDOW (window); | |
1594 | ||
1595 | if (!NILP (pos)) | |
1596 | { | |
1597 | CHECK_NUMBER_COERCE_MARKER (pos); | |
1598 | textpos = XINT (pos); | |
1599 | } | |
1600 | else if (w == XWINDOW (selected_window)) | |
1601 | textpos = PT; | |
1602 | else | |
1603 | textpos = XMARKER (w->pointm)->charpos; | |
1604 | ||
1605 | row = MATRIX_FIRST_TEXT_ROW (w->current_matrix); | |
1606 | row = row_containing_pos (w, textpos, row, NULL, 0); | |
1607 | if (row) | |
d3848fe9 KS |
1608 | return list3 (get_fringe_bitmap_name (row->left_fringe_bitmap), |
1609 | get_fringe_bitmap_name (row->right_fringe_bitmap), | |
a8b34fae KS |
1610 | (row->overlay_arrow_bitmap == 0 ? Qnil |
1611 | : row->overlay_arrow_bitmap < 0 ? Qt | |
1612 | : get_fringe_bitmap_name (row->overlay_arrow_bitmap))); | |
6b61353c KH |
1613 | else |
1614 | return Qnil; | |
1615 | } | |
1616 | ||
1617 | ||
1618 | /*********************************************************************** | |
1619 | Initialization | |
1620 | ***********************************************************************/ | |
1621 | ||
1622 | void | |
1623 | syms_of_fringe () | |
1624 | { | |
7840b332 KS |
1625 | Qtruncation = intern ("truncation"); |
1626 | staticpro (&Qtruncation); | |
1627 | Qcontinuation = intern ("continuation"); | |
1628 | staticpro (&Qcontinuation); | |
1629 | Qoverlay_arrow = intern ("overlay-arrow"); | |
1630 | staticpro (&Qoverlay_arrow); | |
1631 | Qempty_line = intern ("empty-line"); | |
1632 | staticpro (&Qempty_line); | |
1633 | Qtop_bottom = intern ("top-bottom"); | |
1634 | staticpro (&Qtop_bottom); | |
1635 | Qhollow_small = intern ("hollow-small"); | |
1636 | staticpro (&Qhollow_small); | |
1637 | ||
6b61353c KH |
1638 | defsubr (&Sdestroy_fringe_bitmap); |
1639 | defsubr (&Sdefine_fringe_bitmap); | |
1640 | defsubr (&Sfringe_bitmaps_at_pos); | |
1641 | defsubr (&Sset_fringe_bitmap_face); | |
1642 | ||
1643 | DEFVAR_LISP ("overflow-newline-into-fringe", &Voverflow_newline_into_fringe, | |
1644 | doc: /* *Non-nil means that newline may flow into the right fringe. | |
1645 | This means that display lines which are exactly as wide as the window | |
1646 | (not counting the final newline) will only occupy one screen line, by | |
1647 | showing (or hiding) the final newline in the right fringe; when point | |
1648 | is at the final newline, the cursor is shown in the right fringe. | |
1649 | If nil, also continue lines which are exactly as wide as the window. */); | |
1650 | Voverflow_newline_into_fringe = Qt; | |
1651 | ||
7a2a85be | 1652 | DEFVAR_LISP ("fringe-bitmaps", &Vfringe_bitmaps, |
a4b7b036 | 1653 | doc: /* List of fringe bitmap symbols. */); |
7a2a85be | 1654 | Vfringe_bitmaps = Qnil; |
6b61353c KH |
1655 | } |
1656 | ||
49ce2dbd KS |
1657 | /* Garbage collection hook */ |
1658 | ||
1659 | void | |
1660 | mark_fringe_data () | |
1661 | { | |
1662 | int i; | |
1663 | ||
1664 | for (i = 0; i < max_fringe_bitmaps; i++) | |
1665 | if (!NILP (fringe_faces[i])) | |
1666 | mark_object (fringe_faces[i]); | |
1667 | } | |
1668 | ||
6b61353c KH |
1669 | /* Initialize this module when Emacs starts. */ |
1670 | ||
1671 | void | |
1672 | init_fringe_once () | |
1673 | { | |
7840b332 | 1674 | int bt; |
6b61353c KH |
1675 | |
1676 | for (bt = NO_FRINGE_BITMAP + 1; bt < MAX_STANDARD_FRINGE_BITMAPS; bt++) | |
1677 | init_fringe_bitmap(bt, &standard_bitmaps[bt], 1); | |
1678 | } | |
1679 | ||
1680 | void | |
1681 | init_fringe () | |
1682 | { | |
1683 | int i; | |
1684 | ||
ad67849e KS |
1685 | max_fringe_bitmaps = MAX_STANDARD_FRINGE_BITMAPS + 20; |
1686 | ||
1687 | fringe_bitmaps | |
1688 | = (struct fringe_bitmap **) xmalloc (max_fringe_bitmaps * sizeof (struct fringe_bitmap *)); | |
1689 | fringe_faces | |
50af5100 | 1690 | = (Lisp_Object *) xmalloc (max_fringe_bitmaps * sizeof (Lisp_Object)); |
ad67849e KS |
1691 | |
1692 | for (i = 0; i < max_fringe_bitmaps; i++) | |
1693 | { | |
1694 | fringe_bitmaps[i] = NULL; | |
49ce2dbd | 1695 | fringe_faces[i] = Qnil; |
ad67849e | 1696 | } |
6b61353c KH |
1697 | } |
1698 | ||
64c37431 | 1699 | #if defined (HAVE_NTGUI) || defined (MAC_OS) |
6b61353c KH |
1700 | |
1701 | void | |
64c37431 | 1702 | #ifdef HAVE_NTGUI |
91f4aeef | 1703 | w32_init_fringe (rif) |
bd8ce5da | 1704 | #else /* MAC_OS */ |
91f4aeef | 1705 | mac_init_fringe (rif) |
bd8ce5da | 1706 | #endif |
91f4aeef | 1707 | struct redisplay_interface *rif; |
6b61353c | 1708 | { |
7840b332 | 1709 | int bt; |
6b61353c | 1710 | |
f2be4fd0 KS |
1711 | if (!rif) |
1712 | return; | |
1713 | ||
6b61353c KH |
1714 | for (bt = NO_FRINGE_BITMAP + 1; bt < MAX_STANDARD_FRINGE_BITMAPS; bt++) |
1715 | { | |
1716 | struct fringe_bitmap *fb = &standard_bitmaps[bt]; | |
1717 | rif->define_fringe_bitmap (bt, fb->bits, fb->height, fb->width); | |
1718 | } | |
1719 | } | |
bd8ce5da | 1720 | #endif |
6b61353c | 1721 | |
64c37431 | 1722 | #ifdef HAVE_NTGUI |
6b61353c KH |
1723 | void |
1724 | w32_reset_fringes () | |
1725 | { | |
1726 | /* Destroy row bitmaps. */ | |
1727 | int bt; | |
5c217767 | 1728 | struct redisplay_interface *rif = FRAME_RIF (SELECTED_FRAME ()); |
6b61353c | 1729 | |
f2be4fd0 KS |
1730 | if (!rif) |
1731 | return; | |
1732 | ||
6b61353c KH |
1733 | for (bt = NO_FRINGE_BITMAP + 1; bt < max_used_fringe_bitmap; bt++) |
1734 | rif->destroy_fringe_bitmap (bt); | |
1735 | } | |
1736 | ||
1737 | #endif /* HAVE_NTGUI */ | |
1738 | ||
1739 | #endif /* HAVE_WINDOW_SYSTEM */ | |
1740 | ||
1741 | /* arch-tag: 04596920-43eb-473d-b319-82712338162d | |
1742 | (do not change this comment) */ |