Mercurial > hg > xemacs-beta
annotate src/window.c @ 5089:99f8ebc082d9
Make #'substring an alias of #'subseq; give the latter the byte code.
src/ChangeLog addition:
2010-03-03 Aidan Kehoe <kehoea@parhasard.net>
* fns.c (Fsubstring): Removed.
* search.c (Freplace_match):
* minibuf.c (Ftry_completion):
* lisp.h:
* keymap.c (ensure_meta_prefix_char_keymapp):
* dired.c (user_name_completion, file_name_completion):
* console-x.c (x_canonicalize_console_connection):
* bytecode.c (Bsubseq):
* bytecode-ops.h (subseq):
Move #'substring to Lisp, as an alias for #'subseq; change all
C Fsubstring() calls to Fsubseq(), change the Bsubstring bytecode
to Bsubseq.
Motivation; not accepting vectors in #'substring is incompatible
with GNU, and Common Lisp prefers #'subseq, it has no #'substring.
lisp/ChangeLog addition:
2010-03-03 Aidan Kehoe <kehoea@parhasard.net>
Move byte code #o117 to #'subseq, not #'substring.
Make #'substring available as an alias for #'subseq in Lisp.
* bytecomp.el (79, subseq, substring):
* bytecomp.el (byte-compile-subseq): New.
* update-elc.el (update-elc-chop-extension): Use #'subseq, not
#'substring, the latter is not yet available.
* subr.el (substring): New alias, to #'subseq.
man/ChangeLog addition:
2010-03-03 Aidan Kehoe <kehoea@parhasard.net>
* lispref/tips.texi (Comment Tips):
* lispref/text.texi (Text Properties):
* lispref/strings.texi (Creating Strings):
* lispref/processes.texi (Input to Processes):
* lispref/functions.texi (Argument List):
* lispref/extents.texi (Duplicable Extents):
Move examples that used substring to using subseq; in
strings.texi, do not change the examples, but document that in
this XEmacs, it is an alias for subseq, and that there may be some
incompatibilities if you depend on that.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Wed, 03 Mar 2010 18:40:12 +0000 |
| parents | 92dc90c0bb40 |
| children | 0ca81354c4c7 2a462149bd6a 8b2f75cecb89 |
| rev | line source |
|---|---|
| 428 | 1 /* Window creation, deletion and examination for XEmacs. |
| 2 Copyright (C) 1985-1987, 1992-1995 Free Software Foundation, Inc. | |
| 3 Copyright (C) 1994, 1995 Board of Trustees, University of Illinois. | |
| 5043 | 4 Copyright (C) 1995, 1996, 2002, 2010 Ben Wing. |
| 428 | 5 Copyright (C) 1996 Chuck Thompson. |
| 6 | |
| 7 This file is part of XEmacs. | |
| 8 | |
| 9 XEmacs is free software; you can redistribute it and/or modify it | |
| 10 under the terms of the GNU General Public License as published by the | |
| 11 Free Software Foundation; either version 2, or (at your option) any | |
| 12 later version. | |
| 13 | |
| 14 XEmacs is distributed in the hope that it will be useful, but WITHOUT | |
| 15 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 17 for more details. | |
| 18 | |
| 19 You should have received a copy of the GNU General Public License | |
| 20 along with XEmacs; see the file COPYING. If not, write to | |
| 21 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 22 Boston, MA 02111-1307, USA. */ | |
| 23 | |
| 24 /* Synched up with: FSF 19.30. */ | |
| 25 /* Beginning to diverge significantly. */ | |
| 26 | |
| 853 | 27 /* Authorship: |
| 28 | |
| 29 Based on code from pre-release FSF 19, c. 1991. | |
| 30 Significantly reworked by Chuck Thompson, 1993-1996. | |
| 31 window mirror stuff added by Chuck Thompson c. 1993. | |
| 32 various cleanup by Ben Wing c. 1995 (window slots, window init code, | |
| 33 memory usage, synch. up to FSF 19.30, other). | |
| 34 Unknown work by Andy Piper. | |
| 35 new window-width/height fns. by Ben Wing, Mar 2000. */ | |
| 36 | |
| 428 | 37 /* This file has been Mule-ized. */ |
| 38 | |
| 39 #include <config.h> | |
| 40 #include "lisp.h" | |
| 41 | |
| 42 #include "buffer.h" | |
| 800 | 43 #include "commands.h" |
| 872 | 44 #include "device-impl.h" |
| 800 | 45 #include "elhash.h" |
| 428 | 46 #include "faces.h" |
| 872 | 47 #include "frame-impl.h" |
| 800 | 48 #include "glyphs.h" |
| 49 #include "gutter.h" | |
| 428 | 50 #include "objects.h" |
| 51 #include "redisplay.h" | |
| 872 | 52 #include "window-impl.h" |
| 428 | 53 |
| 1149 | 54 Lisp_Object Qwindowp, Qwindow_live_p; |
| 428 | 55 Lisp_Object Qdisplay_buffer; |
| 56 | |
| 57 #ifdef MEMORY_USAGE_STATS | |
| 58 Lisp_Object Qface_cache, Qglyph_cache, Qline_start_cache, Qother_redisplay; | |
| 59 #ifdef HAVE_SCROLLBARS | |
| 60 Lisp_Object Qscrollbar_instances; | |
| 61 #endif | |
| 62 #endif | |
| 63 | |
| 1979 | 64 extern int allow_deletion_of_last_visible_frame; |
| 65 | |
| 428 | 66 EXFUN (Fnext_window, 4); |
| 67 | |
| 68 static int window_pixel_width_to_char_width (struct window *w, | |
| 69 int pixel_width, | |
| 70 int include_margins_p); | |
| 71 static int window_char_width_to_pixel_width (struct window *w, | |
| 72 int char_width, | |
| 73 int include_margins_p); | |
| 74 static int window_pixel_height_to_char_height (struct window *w, | |
| 75 int pixel_height, | |
| 76 int include_gutters_p); | |
| 77 static int window_char_height_to_pixel_height (struct window *w, | |
| 78 int char_height, | |
| 79 int include_gutters_p); | |
| 444 | 80 static void change_window_height (Lisp_Object window, int delta, |
| 81 Lisp_Object horizontalp, int inpixels); | |
| 428 | 82 |
| 83 /* Thickness of shadow border around 3d modelines. */ | |
| 84 Lisp_Object Vmodeline_shadow_thickness; | |
| 85 | |
| 86 /* Whether vertical dividers are draggable and displayed */ | |
| 87 Lisp_Object Vvertical_divider_always_visible_p; | |
| 88 | |
| 89 /* Whether a modeline should be displayed. */ | |
| 90 Lisp_Object Vhas_modeline_p; | |
| 91 | |
| 92 /* Thickness of shadow border around vertical dividers. */ | |
| 93 Lisp_Object Vvertical_divider_shadow_thickness; | |
| 94 | |
| 95 /* Divider surface width (not counting 3-d borders) */ | |
| 96 Lisp_Object Vvertical_divider_line_width; | |
| 97 | |
| 442 | 98 /* Spacing between outer edge of divider border and window edge */ |
| 428 | 99 Lisp_Object Vvertical_divider_spacing; |
| 100 | |
| 101 /* How much to scroll by per-line. */ | |
| 102 Lisp_Object Vwindow_pixel_scroll_increment; | |
| 103 | |
| 104 /* Scroll if point lands on the bottom line and that line is partially | |
| 105 clipped. */ | |
| 106 int scroll_on_clipped_lines; | |
| 107 | |
| 108 /* The minibuffer window of the selected frame. | |
| 109 Note that you cannot test for minibufferness of an arbitrary window | |
| 110 by comparing against this; but you can test for minibufferness of | |
| 111 the selected window. */ | |
| 112 Lisp_Object minibuf_window; | |
| 113 | |
| 114 /* Non-nil means it is the window for C-M-v to scroll | |
| 115 when the minibuffer is selected. */ | |
| 116 Lisp_Object Vminibuffer_scroll_window; | |
| 117 | |
| 118 /* Non-nil means this is the buffer whose window C-M-v should scroll. */ | |
| 119 Lisp_Object Vother_window_scroll_buffer; | |
| 120 | |
| 121 /* Non-nil means it's the function to call to display temp buffers. */ | |
| 122 Lisp_Object Vtemp_buffer_show_function; | |
| 123 | |
| 124 /* If a window gets smaller than either of these, it is removed. */ | |
| 458 | 125 Fixnum window_min_height; |
| 126 Fixnum window_min_width; | |
| 428 | 127 |
| 128 /* Number of lines of continuity in scrolling by screenfuls. */ | |
| 458 | 129 Fixnum next_screen_context_lines; |
| 428 | 130 |
| 1149 | 131 Lisp_Object Qcurrent_window_configuration, Qset_window_configuration; |
| 428 | 132 |
| 707 | 133 Lisp_Object Qtruncate_partial_width_windows; |
| 134 | |
| 428 | 135 #define SET_LAST_MODIFIED(w, cache_too) \ |
| 136 do { \ | |
| 137 (w)->last_modified[CURRENT_DISP] = Qzero; \ | |
| 138 (w)->last_modified[DESIRED_DISP] = Qzero; \ | |
| 139 (w)->last_modified[CMOTION_DISP] = Qzero; \ | |
| 140 if (cache_too) \ | |
| 141 (w)->line_cache_last_updated = Qzero; \ | |
| 142 } while (0) | |
| 143 | |
| 144 #define SET_LAST_FACECHANGE(w) \ | |
| 145 do { \ | |
| 146 (w)->last_facechange[CURRENT_DISP] = Qzero; \ | |
| 147 (w)->last_facechange[DESIRED_DISP] = Qzero; \ | |
| 148 (w)->last_facechange[CMOTION_DISP] = Qzero; \ | |
| 149 } while (0) | |
| 150 | |
| 151 | |
| 1204 | 152 |
| 153 static const struct memory_description int_description_1[] = { | |
| 154 { XD_END } | |
| 155 }; | |
| 156 | |
| 157 static const struct sized_memory_description int_description = { | |
| 158 sizeof (int), | |
| 159 int_description_1 | |
| 160 }; | |
| 161 | |
| 162 static const struct memory_description int_dynarr_description_1[] = { | |
| 163 XD_DYNARR_DESC (int_dynarr, &int_description), | |
| 164 { XD_END } | |
| 165 }; | |
| 166 | |
| 167 static const struct sized_memory_description int_dynarr_description = { | |
| 168 sizeof (int_dynarr), | |
| 169 int_dynarr_description_1 | |
| 170 }; | |
| 171 | |
| 172 static const struct memory_description face_cachel_description_1[] = { | |
| 2367 | 173 { XD_BLOCK_PTR, offsetof (face_cachel, merged_faces), |
| 2551 | 174 1, { &int_dynarr_description } }, |
| 1204 | 175 { XD_LISP_OBJECT, offsetof (face_cachel, face) }, |
| 176 { XD_LISP_OBJECT, offsetof (face_cachel, foreground) }, | |
| 177 { XD_LISP_OBJECT, offsetof (face_cachel, background) }, | |
| 178 { XD_LISP_OBJECT_ARRAY, offsetof (face_cachel, font), NUM_LEADING_BYTES }, | |
| 179 { XD_LISP_OBJECT, offsetof (face_cachel, display_table) }, | |
| 180 { XD_LISP_OBJECT, offsetof (face_cachel, background_pixmap) }, | |
| 181 { XD_END } | |
| 182 }; | |
| 183 | |
| 3092 | 184 #ifdef NEW_GC |
| 185 DEFINE_LRECORD_IMPLEMENTATION ("face-cachel", face_cachel, | |
| 186 1, /*dumpable-flag*/ | |
| 187 0, 0, 0, 0, 0, | |
| 188 face_cachel_description_1, | |
| 189 Lisp_Face_Cachel); | |
| 190 #endif /* NEW_GC */ | |
| 191 | |
| 1204 | 192 static const struct sized_memory_description face_cachel_description = { |
| 193 sizeof (face_cachel), | |
| 194 face_cachel_description_1 | |
| 195 }; | |
| 196 | |
| 197 static const struct memory_description face_cachel_dynarr_description_1[] = { | |
| 3092 | 198 #ifdef NEW_GC |
| 199 XD_LISP_DYNARR_DESC (face_cachel_dynarr, &face_cachel_description), | |
| 200 #else /* not NEW_GC */ | |
| 1204 | 201 XD_DYNARR_DESC (face_cachel_dynarr, &face_cachel_description), |
| 3092 | 202 #endif /* not NEW_GC */ |
| 1204 | 203 { XD_END } |
| 204 }; | |
| 205 | |
| 3092 | 206 #ifdef NEW_GC |
| 207 DEFINE_LRECORD_IMPLEMENTATION ("face-cachel-dynarr", face_cachel_dynarr, | |
| 208 1, /*dumpable-flag*/ | |
| 209 0, 0, 0, 0, 0, | |
| 210 face_cachel_dynarr_description_1, | |
| 211 face_cachel_dynarr); | |
| 212 #else /* not NEW_GC */ | |
| 1204 | 213 static const struct sized_memory_description face_cachel_dynarr_description = { |
| 214 sizeof (face_cachel_dynarr), | |
| 215 face_cachel_dynarr_description_1 | |
| 216 }; | |
| 3092 | 217 #endif /* not NEW_GC */ |
| 1204 | 218 |
| 219 static const struct memory_description glyph_cachel_description_1[] = { | |
| 220 { XD_LISP_OBJECT, offsetof (glyph_cachel, glyph) }, | |
| 221 { XD_END } | |
| 222 }; | |
| 223 | |
| 3092 | 224 #ifdef NEW_GC |
| 225 DEFINE_LRECORD_IMPLEMENTATION ("glyph-cachel", glyph_cachel, | |
| 226 1, /*dumpable-flag*/ | |
| 227 0, 0, 0, 0, 0, | |
| 228 glyph_cachel_description_1, | |
| 229 Lisp_Glyph_Cachel); | |
| 230 #endif /* NEW_GC */ | |
| 231 | |
| 1204 | 232 static const struct sized_memory_description glyph_cachel_description = { |
| 233 sizeof (glyph_cachel), | |
| 234 glyph_cachel_description_1 | |
| 235 }; | |
| 236 | |
| 237 static const struct memory_description glyph_cachel_dynarr_description_1[] = { | |
| 3092 | 238 #ifdef NEW_GC |
| 239 XD_LISP_DYNARR_DESC (glyph_cachel_dynarr, &glyph_cachel_description), | |
| 240 #else /* not NEW_GC */ | |
| 1204 | 241 XD_DYNARR_DESC (glyph_cachel_dynarr, &glyph_cachel_description), |
| 3092 | 242 #endif /* not NEW_GC */ |
| 1204 | 243 { XD_END } |
| 244 }; | |
| 245 | |
| 3092 | 246 #ifdef NEW_GC |
| 247 DEFINE_LRECORD_IMPLEMENTATION ("glyph-cachel-dynarr", glyph_cachel_dynarr, | |
| 248 1, /*dumpable-flag*/ | |
| 249 0, 0, 0, 0, 0, | |
| 250 glyph_cachel_dynarr_description_1, | |
| 251 glyph_cachel_dynarr); | |
| 252 #else /* not NEW_GC */ | |
| 1204 | 253 static const struct sized_memory_description glyph_cachel_dynarr_description = { |
| 254 sizeof (glyph_cachel_dynarr), | |
| 255 glyph_cachel_dynarr_description_1 | |
| 256 }; | |
| 3092 | 257 #endif /* not NEW_GC */ |
| 1204 | 258 |
| 259 static const struct memory_description line_start_cache_description_1[] = { | |
| 260 { XD_END } | |
| 261 }; | |
| 262 | |
| 263 static const struct sized_memory_description line_start_cache_description = { | |
| 264 sizeof (line_start_cache), | |
| 265 line_start_cache_description_1 | |
| 266 }; | |
| 267 | |
| 268 static const struct memory_description line_start_cache_dynarr_description_1[] = { | |
| 269 XD_DYNARR_DESC (line_start_cache_dynarr, &line_start_cache_description), | |
| 270 { XD_END } | |
| 271 }; | |
| 272 | |
| 273 static const struct sized_memory_description line_start_cache_dynarr_description = { | |
| 274 sizeof (line_start_cache_dynarr), | |
| 275 line_start_cache_dynarr_description_1 | |
| 276 }; | |
| 277 | |
| 278 static const struct memory_description window_description [] = { | |
| 279 #define WINDOW_SLOT(slot) { XD_LISP_OBJECT, offsetof (struct window, slot) }, | |
| 280 #define WINDOW_SLOT_ARRAY(slot, size) \ | |
| 281 { XD_LISP_OBJECT_ARRAY, offsetof (struct window, slot), size }, | |
| 282 #include "winslots.h" | |
| 283 | |
| 3092 | 284 #ifdef NEW_GC |
| 285 { XD_LISP_OBJECT, offsetof (struct window, face_cachels) }, | |
| 286 { XD_LISP_OBJECT, offsetof (struct window, glyph_cachels) }, | |
| 287 #else /* not NEW_GC */ | |
| 2367 | 288 { XD_BLOCK_PTR, offsetof (struct window, face_cachels), |
| 2551 | 289 1, { &face_cachel_dynarr_description } }, |
| 2367 | 290 { XD_BLOCK_PTR, offsetof (struct window, glyph_cachels), |
| 2551 | 291 1, { &glyph_cachel_dynarr_description } }, |
| 3092 | 292 #endif /* not NEW_GC */ |
| 2367 | 293 { XD_BLOCK_PTR, offsetof (struct window, line_start_cache), |
| 2775 | 294 1, { &line_start_cache_dynarr_description }, XD_FLAG_NO_KKCC }, |
| 1204 | 295 { XD_END } |
| 296 }; | |
| 428 | 297 |
| 298 static Lisp_Object | |
| 299 mark_window (Lisp_Object obj) | |
| 300 { | |
| 301 struct window *window = XWINDOW (obj); | |
| 302 | |
| 303 mark_face_cachels (window->face_cachels); | |
| 304 mark_glyph_cachels (window->glyph_cachels); | |
| 305 | |
| 617 | 306 #define WINDOW_SLOT(slot) mark_object (window->slot); |
| 428 | 307 #include "winslots.h" |
| 308 | |
| 309 return Qnil; | |
| 310 } | |
| 311 | |
| 312 static void | |
| 2286 | 313 print_window (Lisp_Object obj, Lisp_Object printcharfun, |
| 314 int UNUSED (escapeflag)) | |
| 428 | 315 { |
| 4846 | 316 Lisp_Object buf; |
| 317 | |
| 428 | 318 if (print_readably) |
| 4846 | 319 printing_unreadable_lcrecord (obj, 0); |
| 428 | 320 |
|
4952
19a72041c5ed
Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents:
4932
diff
changeset
|
321 write_ascstring (printcharfun, "#<window"); |
| 4846 | 322 buf = XWINDOW_BUFFER (obj); |
| 323 if (EQ (buf, Qt)) | |
|
4952
19a72041c5ed
Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents:
4932
diff
changeset
|
324 write_ascstring (printcharfun, " during creation"); |
| 4846 | 325 else if (!NILP (buf)) |
| 428 | 326 { |
| 4846 | 327 |
| 328 Lisp_Object name = XBUFFER (buf)->name; | |
| 800 | 329 write_fmt_string_lisp (printcharfun, " on %S", 1, name); |
| 428 | 330 } |
| 800 | 331 write_fmt_string (printcharfun, " 0x%x>", XWINDOW (obj)->header.uid); |
| 428 | 332 } |
| 333 | |
| 334 static void | |
| 2286 | 335 finalize_window (void *header, int UNUSED (for_disksave)) |
| 428 | 336 { |
| 337 struct window *w = (struct window *) header; | |
| 338 | |
| 339 if (w->line_start_cache) | |
| 340 { | |
| 341 Dynarr_free (w->line_start_cache); | |
| 342 w->line_start_cache = 0; | |
| 343 } | |
| 344 | |
| 345 if (w->face_cachels) | |
| 346 { | |
| 347 int i; | |
| 348 | |
| 349 for (i = 0; i < Dynarr_length (w->face_cachels); i++) | |
| 350 { | |
| 351 struct face_cachel *cachel = Dynarr_atp (w->face_cachels, i); | |
| 352 if (cachel->merged_faces) | |
| 353 { | |
| 354 Dynarr_free (cachel->merged_faces); | |
| 355 cachel->merged_faces = 0; | |
| 356 } | |
| 357 } | |
| 358 Dynarr_free (w->face_cachels); | |
| 359 w->face_cachels = 0; | |
| 360 } | |
| 361 | |
| 362 if (w->glyph_cachels) | |
| 363 { | |
| 364 Dynarr_free (w->glyph_cachels); | |
| 365 w->glyph_cachels = 0; | |
| 366 } | |
| 367 } | |
| 368 | |
| 844 | 369 /* These caches map buffers to markers. They are key-weak so that entries |
| 370 remain around as long as the buffers do. */ | |
| 371 | |
| 372 static Lisp_Object | |
| 373 make_saved_buffer_point_cache (void) | |
| 374 { | |
| 375 return make_lisp_hash_table (20, HASH_TABLE_KEY_WEAK, HASH_TABLE_EQ); | |
| 376 } | |
| 377 | |
| 934 | 378 DEFINE_LRECORD_IMPLEMENTATION ("window", window, |
| 379 0, /*dumpable-flag*/ | |
| 380 mark_window, print_window, finalize_window, | |
| 1204 | 381 0, 0, window_description, struct window); |
| 428 | 382 |
| 383 #define INIT_DISP_VARIABLE(field, initialization) \ | |
| 384 p->field[CURRENT_DISP] = initialization; \ | |
| 385 p->field[DESIRED_DISP] = initialization; \ | |
| 386 p->field[CMOTION_DISP] = initialization; | |
| 387 | |
| 388 /* We have an implicit assertion that the first two elements (default | |
| 389 and modeline faces) are always present in the face_element_cache. | |
| 390 Normally redisplay ensures this. However, it is possible for a | |
| 391 window to get created and functions which reference these values | |
| 392 called before redisplay works with the window for the first time. | |
| 393 All callers of allocate_window should therefore call | |
| 394 reset_face_cachels on the created window. We can't do it | |
| 395 here because the window must have its frame pointer set or | |
| 396 reset_face_cachels will fail. */ | |
| 397 Lisp_Object | |
| 398 allocate_window (void) | |
| 399 { | |
| 3017 | 400 struct window *p = ALLOC_LCRECORD_TYPE (struct window, &lrecord_window); |
| 1204 | 401 Lisp_Object val = wrap_window (p); |
| 617 | 402 |
| 403 #define WINDOW_SLOT(slot) p->slot = Qnil; | |
| 404 #include "winslots.h" | |
| 405 | |
| 428 | 406 INIT_DISP_VARIABLE (start, Fmake_marker ()); |
| 407 INIT_DISP_VARIABLE (pointm, Fmake_marker ()); | |
| 408 p->sb_point = Fmake_marker (); | |
| 844 | 409 p->saved_point_cache = make_saved_buffer_point_cache (); |
| 410 p->saved_last_window_start_cache = make_saved_buffer_point_cache (); | |
| 428 | 411 p->use_time = Qzero; |
| 412 INIT_DISP_VARIABLE (last_modified, Qzero); | |
| 413 INIT_DISP_VARIABLE (last_point, Fmake_marker ()); | |
| 414 INIT_DISP_VARIABLE (last_start, Fmake_marker ()); | |
| 415 INIT_DISP_VARIABLE (last_facechange, Qzero); | |
| 3092 | 416 #ifdef NEW_GC |
| 417 p->face_cachels = Dynarr_lisp_new (face_cachel, | |
| 418 &lrecord_face_cachel_dynarr, | |
| 419 &lrecord_face_cachel); | |
| 420 p->glyph_cachels = Dynarr_lisp_new (glyph_cachel, | |
| 421 &lrecord_glyph_cachel_dynarr, | |
| 422 &lrecord_glyph_cachel); | |
| 423 #else /* not NEW_GC */ | |
| 428 | 424 p->face_cachels = Dynarr_new (face_cachel); |
| 425 p->glyph_cachels = Dynarr_new (glyph_cachel); | |
| 3092 | 426 #endif /* not NEW_GC */ |
| 428 | 427 p->line_start_cache = Dynarr_new (line_start_cache); |
| 450 | 428 p->subwindow_instance_cache = make_image_instance_cache_hash_table (); |
| 429 | |
| 428 | 430 p->line_cache_last_updated = Qzero; |
| 442 | 431 |
| 428 | 432 p->windows_changed = 1; |
| 433 p->shadow_thickness_changed = 1; | |
| 434 | |
| 435 return val; | |
| 436 } | |
| 437 #undef INIT_DISP_VARIABLE | |
| 438 | |
| 617 | 439 /************************************************************************/ |
| 440 /* Window mirror structure */ | |
| 441 /************************************************************************/ | |
| 442 | |
| 428 | 443 /* |
| 444 * The redisplay structures used to be stored with each window. While | |
| 445 * they are logically something associated with frames they can't be | |
| 446 * stored there with a redisplay which handles variable height lines. | |
| 447 * Lines in horizontally split windows might not line up. So they get | |
| 448 * stored with the windows. | |
| 449 * | |
| 450 * The problem with this is window configurations. When restoring a | |
| 451 * window configuration it now becomes problematic to do an | |
| 452 * incremental redisplay. The solution is to store the redisplay | |
| 453 * structures with the frame as they should be but laid out in the | |
| 454 * same manner as the window structure. Thus is born the window | |
| 455 * mirror. | |
| 456 * | |
| 457 * It also becomes a convenient place to stick scrollbar instances | |
| 458 * since they extrapolate out to having the same problem described for | |
| 459 * the display structures. | |
| 460 */ | |
| 461 | |
| 617 | 462 /* NOTE: The window-mirror structure formerly was not a Lisp object, and |
| 463 marking was handled specially. I've gotten recurring crashes, however, | |
| 464 using the mouse wheel under Windows, where either the window mirror | |
| 465 accessed through a scrollbar instance, or the frame pointed to by that | |
| 466 window mirror, gets garbaged. Things are tricky under windows because | |
| 467 the scrollbar instances are stored in HWND-specific data. Furthermore, | |
| 468 we have scrollbar-instance caches to complicate things. Both of these | |
| 469 make it very difficult (for me at least, not being intimately familiar | |
| 470 with the redisplay code) to track exactly when and where a particular | |
| 471 window mirror or scrollbar instance has pointers to it, or whether a | |
| 472 window mirror might have a dead frame or buffer in it (i.e. not | |
| 473 necessarily gc-protected by being on a global list). By far the safest | |
| 474 thing, then, is to make both structures Lisp objects and not explicitly | |
| 475 xfree() them. This should make no practical difference in memory usage | |
| 476 because neither structure is created very often (only when windows are | |
| 477 created or deleted). --ben */ | |
| 478 | |
| 1204 | 479 static const struct memory_description window_mirror_description [] = { |
| 480 { XD_LISP_OBJECT, offsetof (struct window_mirror, frame) }, | |
| 481 { XD_LISP_OBJECT, offsetof (struct window_mirror, next) }, | |
| 482 { XD_LISP_OBJECT, offsetof (struct window_mirror, hchild) }, | |
| 483 { XD_LISP_OBJECT, offsetof (struct window_mirror, vchild) }, | |
| 484 | |
| 2367 | 485 { XD_BLOCK_PTR, offsetof (struct window_mirror, current_display_lines), |
| 2551 | 486 1, { &display_line_dynarr_description } }, |
| 2367 | 487 { XD_BLOCK_PTR, offsetof (struct window_mirror, desired_display_lines), |
| 2551 | 488 1, { &display_line_dynarr_description } }, |
| 1204 | 489 |
| 490 { XD_LISP_OBJECT, offsetof (struct window_mirror, buffer) }, | |
| 491 | |
| 492 #ifdef HAVE_SCROLLBARS | |
| 493 { XD_LISP_OBJECT, offsetof (struct window_mirror, | |
| 494 scrollbar_vertical_instance) }, | |
| 495 { XD_LISP_OBJECT, offsetof (struct window_mirror, | |
| 496 scrollbar_horizontal_instance) }, | |
| 497 #endif /* HAVE_SCROLLBARS */ | |
| 498 | |
| 934 | 499 { XD_END } |
| 500 }; | |
| 501 | |
| 617 | 502 static Lisp_Object |
| 503 mark_window_mirror (Lisp_Object obj) | |
| 504 { | |
| 505 struct window_mirror *mir = XWINDOW_MIRROR (obj); | |
| 506 | |
| 507 if (mir->current_display_lines) | |
| 508 mark_redisplay_structs (mir->current_display_lines); | |
| 509 if (mir->desired_display_lines) | |
| 510 mark_redisplay_structs (mir->desired_display_lines); | |
| 511 | |
| 512 if (mir->hchild) | |
| 513 mark_object (wrap_window_mirror (mir->hchild)); | |
| 514 if (mir->vchild) | |
| 515 mark_object (wrap_window_mirror (mir->vchild)); | |
| 516 | |
| 517 if (mir->frame) | |
| 518 mark_object (wrap_frame (mir->frame)); | |
| 519 if (mir->buffer) | |
| 520 mark_object (wrap_buffer (mir->buffer)); | |
| 521 | |
| 522 #ifdef HAVE_SCROLLBARS | |
| 523 if (mir->scrollbar_vertical_instance) | |
| 524 mark_object (wrap_scrollbar_instance (mir->scrollbar_vertical_instance)); | |
| 525 if (mir->scrollbar_horizontal_instance) | |
| 526 mark_object (wrap_scrollbar_instance (mir->scrollbar_horizontal_instance)); | |
| 527 #endif /* HAVE_SCROLLBARS */ | |
| 528 if (mir->next) | |
| 529 return wrap_window_mirror (mir->next); | |
| 530 else | |
| 531 return Qnil; | |
| 532 } | |
| 533 | |
| 934 | 534 DEFINE_LRECORD_IMPLEMENTATION ("window-mirror", window_mirror, |
| 535 0, /*dumpable-flag*/ | |
| 536 mark_window_mirror, internal_object_printer, | |
| 1204 | 537 0, 0, 0, window_mirror_description, |
| 538 struct window_mirror); | |
| 617 | 539 |
| 428 | 540 /* Create a new window mirror structure and associated redisplay |
| 541 structs. */ | |
| 542 static struct window_mirror * | |
| 543 new_window_mirror (struct frame *f) | |
| 544 { | |
| 617 | 545 struct window_mirror *t = |
| 3017 | 546 ALLOC_LCRECORD_TYPE (struct window_mirror, &lrecord_window_mirror); |
| 428 | 547 |
| 548 t->frame = f; | |
| 549 t->current_display_lines = Dynarr_new (display_line); | |
| 550 t->desired_display_lines = Dynarr_new (display_line); | |
| 551 | |
| 552 return t; | |
| 553 } | |
| 554 | |
| 555 /* Synchronize the mirror structure with a given window structure. | |
| 556 This is normally called from update_frame_window_mirror with a | |
| 557 starting window of f->root_window. */ | |
| 558 static struct window_mirror * | |
| 559 update_mirror_internal (Lisp_Object win, struct window_mirror *mir) | |
| 560 { | |
| 561 if (NILP (win)) | |
| 562 { | |
| 563 if (mir) | |
| 564 { | |
| 565 free_window_mirror (mir); | |
| 566 mir = NULL; | |
| 567 } | |
| 568 return mir; | |
| 569 } | |
| 570 else | |
| 571 if (!mir) | |
| 572 mir = new_window_mirror (XFRAME (XWINDOW (win)->frame)); | |
| 573 | |
| 1204 | 574 mir->next = update_mirror_internal (XWINDOW (win)->next, mir->next); |
| 428 | 575 mir->hchild = update_mirror_internal (XWINDOW (win)->hchild, mir->hchild); |
| 576 mir->vchild = update_mirror_internal (XWINDOW (win)->vchild, mir->vchild); | |
| 577 | |
| 578 /* | |
| 579 * If the redisplay structs are not empty and the mirror has | |
| 580 * children, then this mirror structure was formerly being used for | |
| 581 * display but is no longer. Reset its current display structs so | |
| 582 * that redisplay doesn't accidentally think they are accurate if it | |
| 583 * is later used for display purposes once again. Also, mark the | |
| 584 * scrollbar instance as not active. | |
| 585 */ | |
| 586 if (mir->vchild || mir->hchild) | |
| 587 { | |
| 588 /* The redisplay structures are big. Leaving them around in | |
| 589 non-leaf windows can add up to a lot of wasted space. So | |
| 590 don't do it. */ | |
| 591 free_display_structs (mir); | |
| 592 mir->current_display_lines = Dynarr_new (display_line); | |
| 593 mir->desired_display_lines = Dynarr_new (display_line); | |
| 594 | |
| 595 #ifdef HAVE_SCROLLBARS | |
| 596 update_window_scrollbars (XWINDOW (win), mir, 0, 0); | |
| 597 #endif | |
| 598 mir->buffer = NULL; | |
| 599 } | |
| 600 | |
| 601 return mir; | |
| 602 } | |
| 603 | |
| 604 /* Given a window mirror, determine which real window it contains the | |
| 605 redisplay structures for. */ | |
| 606 static Lisp_Object | |
| 607 real_window_internal (Lisp_Object win, struct window_mirror *rmir, | |
| 608 struct window_mirror *mir) | |
| 609 { | |
| 610 for (; !NILP (win) && rmir ; win = XWINDOW (win)->next, rmir = rmir->next) | |
| 611 { | |
| 612 if (mir == rmir) | |
| 613 return win; | |
| 614 if (!NILP (XWINDOW (win)->vchild)) | |
| 615 { | |
| 616 Lisp_Object retval = | |
| 617 real_window_internal (XWINDOW (win)->vchild, rmir->vchild, mir); | |
| 618 if (!NILP (retval)) | |
| 619 return retval; | |
| 620 } | |
| 621 if (!NILP (XWINDOW (win)->hchild)) | |
| 622 { | |
| 623 Lisp_Object retval = | |
| 624 real_window_internal (XWINDOW (win)->hchild, rmir->hchild, mir); | |
| 625 if (!NILP (retval)) | |
| 626 return retval; | |
| 627 } | |
| 628 } | |
| 629 | |
| 630 return Qnil; | |
| 631 } | |
| 632 | |
| 633 /* Given a real window, find the mirror structure which contains its | |
| 634 redisplay structures. */ | |
| 635 static struct window_mirror * | |
| 636 find_window_mirror_internal (Lisp_Object win, struct window_mirror *rmir, | |
| 637 struct window *w) | |
| 638 { | |
| 639 for (; !NILP (win); win = XWINDOW (win)->next, rmir = rmir->next) | |
| 640 { | |
| 641 if (w == XWINDOW (win)) | |
| 642 return rmir; | |
| 643 | |
| 644 if (!NILP (XWINDOW (win)->vchild)) | |
| 645 { | |
| 646 struct window_mirror *retval = | |
| 647 find_window_mirror_internal (XWINDOW (win)->vchild, | |
| 648 rmir->vchild, w); | |
| 649 if (retval) return retval; | |
| 650 } | |
| 651 | |
| 652 if (!NILP (XWINDOW (win)->hchild)) | |
| 653 { | |
| 654 struct window_mirror *retval = | |
| 655 find_window_mirror_internal (XWINDOW (win)->hchild, | |
| 656 rmir->hchild, w); | |
| 657 if (retval) return retval; | |
| 658 } | |
| 659 } | |
| 660 | |
| 661 return 0; | |
| 662 } | |
| 663 | |
| 664 /* Update the mirror structure for the given frame. */ | |
| 665 void | |
| 666 update_frame_window_mirror (struct frame *f) | |
| 667 { | |
| 617 | 668 f->root_mirror = |
| 669 wrap_window_mirror (update_mirror_internal | |
| 670 (f->root_window, | |
| 671 NILP (f->root_mirror) ? 0 : | |
| 672 XWINDOW_MIRROR (f->root_mirror))); | |
| 428 | 673 f->mirror_dirty = 0; |
| 674 } | |
| 675 | |
| 676 /* Free a given mirror structure along with all of its children as | |
| 677 well as their associated display structures. */ | |
| 678 void | |
| 679 free_window_mirror (struct window_mirror *mir) | |
| 680 { | |
| 681 while (mir) | |
| 682 { | |
| 683 if (mir->hchild) free_window_mirror (mir->hchild); | |
| 684 if (mir->vchild) free_window_mirror (mir->vchild); | |
| 685 #ifdef HAVE_SCROLLBARS | |
| 686 release_window_mirror_scrollbars (mir); | |
| 687 #endif | |
| 688 free_display_structs (mir); | |
| 689 mir = mir->next; | |
| 617 | 690 /* not worth calling free_managed_lcrecord() -- window mirrors |
| 691 are not created that frequently and it's dangerous. we don't | |
| 692 know for sure that there aren't other pointers around -- e.g. | |
| 693 in a scrollbar instance. */ | |
| 428 | 694 } |
| 695 } | |
| 696 | |
| 697 /* Given a mirror structure, return the window it mirrors. Calls | |
| 698 real_window_internal to do most of the work. */ | |
| 699 Lisp_Object | |
| 700 real_window (struct window_mirror *mir, int no_abort) | |
| 701 { | |
| 617 | 702 Lisp_Object retval = |
| 703 real_window_internal (mir->frame->root_window, | |
| 704 XWINDOW_MIRROR (mir->frame->root_mirror), mir); | |
|
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parents:
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diff
changeset
|
705 assert (!NILP (retval) || no_abort); |
| 428 | 706 |
| 707 return retval; | |
| 708 } | |
| 709 | |
| 710 /* Given a real window, return its mirror structure. Calls | |
| 711 find_window_mirror_internal to do all of the work. */ | |
| 712 struct window_mirror * | |
| 713 find_window_mirror (struct window *w) | |
| 714 { | |
| 715 struct frame *f = XFRAME (w->frame); | |
| 716 if (f->mirror_dirty) | |
| 717 update_frame_window_mirror (f); | |
| 617 | 718 return find_window_mirror_internal (f->root_window, |
| 719 XWINDOW_MIRROR (f->root_mirror), w); | |
| 428 | 720 } |
| 721 | |
| 722 /***************************************************************************** | |
| 723 find_window_by_pixel_pos | |
| 724 | |
| 725 Given a pixel position relative to a frame, find the window at that | |
| 726 position. | |
| 727 ****************************************************************************/ | |
| 728 struct window * | |
| 729 find_window_by_pixel_pos (int pix_x, int pix_y, Lisp_Object win) | |
| 730 { | |
| 731 if (NILP (win)) | |
| 732 return 0; | |
| 733 | |
| 734 for (; !NILP (win); win = XWINDOW (win)->next) | |
| 735 { | |
| 736 struct window *w; | |
| 737 | |
| 738 if (!NILP (XWINDOW (win)->vchild)) | |
| 739 { | |
| 740 w = find_window_by_pixel_pos (pix_x, pix_y, XWINDOW (win)->vchild); | |
| 741 if (w) return w; | |
| 742 } | |
| 743 if (!NILP (XWINDOW (win)->hchild)) | |
| 744 { | |
| 745 w = find_window_by_pixel_pos (pix_x, pix_y, XWINDOW (win)->hchild); | |
| 746 if (w) return w; | |
| 747 } | |
| 748 w = XWINDOW (win); | |
| 749 if (pix_x >= WINDOW_LEFT (w) | |
| 750 && pix_x <= WINDOW_RIGHT (w) | |
| 751 && pix_y >= WINDOW_TOP (w) | |
| 752 && pix_y <= WINDOW_BOTTOM (w)) | |
| 753 return w; | |
| 754 } | |
| 755 return NULL; | |
| 756 } | |
| 757 | |
| 758 /* Return a pointer to the display structures for the given window. */ | |
| 759 display_line_dynarr * | |
| 760 window_display_lines (struct window *w, int which) | |
| 761 { | |
| 762 struct window_mirror *t; | |
| 763 | |
| 764 if (XFRAME (w->frame)->mirror_dirty) | |
| 765 update_frame_window_mirror (XFRAME (w->frame)); | |
| 766 t = find_window_mirror (w); | |
|
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parents:
4967
diff
changeset
|
767 assert (t); |
| 428 | 768 |
| 769 if (which == CURRENT_DISP) | |
| 770 return t->current_display_lines; | |
| 771 else if (which == DESIRED_DISP) | |
| 772 return t->desired_display_lines; | |
| 773 else if (which == CMOTION_DISP) | |
| 774 /* The CMOTION_DISP display lines are global. */ | |
| 775 return cmotion_display_lines; | |
| 776 else | |
| 2500 | 777 ABORT (); |
| 428 | 778 |
| 779 return 0; /* shut up compiler */ | |
| 780 } | |
| 781 | |
| 782 struct buffer * | |
| 783 window_display_buffer (struct window *w) | |
| 784 { | |
| 785 struct window_mirror *t; | |
| 786 | |
| 787 if (XFRAME (w->frame)->mirror_dirty) | |
| 788 update_frame_window_mirror (XFRAME (w->frame)); | |
| 789 t = find_window_mirror (w); | |
|
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Ben Wing <ben@xemacs.org>
parents:
4967
diff
changeset
|
790 assert (t); |
| 428 | 791 |
| 792 return t->buffer; | |
| 793 } | |
| 794 | |
| 795 void | |
| 796 set_window_display_buffer (struct window *w, struct buffer *b) | |
| 797 { | |
| 798 struct window_mirror *t; | |
| 799 | |
| 800 if (XFRAME (w->frame)->mirror_dirty) | |
| 801 update_frame_window_mirror (XFRAME (w->frame)); | |
| 802 t = find_window_mirror (w); | |
|
5050
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Ben Wing <ben@xemacs.org>
parents:
4967
diff
changeset
|
803 assert (t); |
| 428 | 804 |
| 805 t->buffer = b; | |
| 806 } | |
| 807 | |
| 808 | |
| 809 /* Determining a window's position based solely on its pixel | |
| 810 positioning doesn't work. Instead, we do it the intelligent way, | |
| 811 by checking its positioning in the window hierarchy. */ | |
| 812 int | |
| 813 window_is_leftmost (struct window *w) | |
| 814 { | |
| 815 Lisp_Object parent, current_ancestor, window; | |
| 816 | |
| 793 | 817 window = wrap_window (w); |
| 428 | 818 |
| 819 parent = XWINDOW (window)->parent; | |
| 820 current_ancestor = window; | |
| 821 | |
| 822 while (!NILP (parent)) | |
| 823 { | |
| 824 if (!NILP (XWINDOW (parent)->hchild) && | |
| 825 !EQ (XWINDOW (parent)->hchild, current_ancestor)) | |
| 826 return 0; | |
| 827 | |
| 828 current_ancestor = parent; | |
| 829 parent = XWINDOW (parent)->parent; | |
| 830 } | |
| 831 | |
| 832 return 1; | |
| 833 } | |
| 834 | |
| 835 int | |
| 836 window_is_rightmost (struct window *w) | |
| 837 { | |
| 838 Lisp_Object parent, current_ancestor, window; | |
| 839 | |
| 793 | 840 window = wrap_window (w); |
| 428 | 841 |
| 842 parent = XWINDOW (window)->parent; | |
| 843 current_ancestor = window; | |
| 844 | |
| 845 while (!NILP (parent)) | |
| 846 { | |
| 847 if (!NILP (XWINDOW (parent)->hchild) | |
| 848 && !NILP (XWINDOW (current_ancestor)->next)) | |
| 849 return 0; | |
| 850 | |
| 851 current_ancestor = parent; | |
| 852 parent = XWINDOW (parent)->parent; | |
| 853 } | |
| 854 | |
| 855 return 1; | |
| 856 } | |
| 857 | |
| 858 static int | |
| 859 window_full_width_p (struct window *w) | |
| 860 { | |
| 861 return window_is_leftmost (w) && window_is_rightmost (w); | |
| 862 } | |
| 863 | |
| 864 int | |
| 865 window_is_highest (struct window *w) | |
| 866 { | |
| 867 Lisp_Object parent, current_ancestor, window; | |
| 868 | |
| 793 | 869 window = wrap_window (w); |
| 428 | 870 |
| 871 parent = XWINDOW (window)->parent; | |
| 872 current_ancestor = window; | |
| 873 | |
| 874 while (!NILP (parent)) | |
| 875 { | |
| 876 if (!NILP (XWINDOW (parent)->vchild) && | |
| 877 !EQ (XWINDOW (parent)->vchild, current_ancestor)) | |
| 878 return 0; | |
| 879 | |
| 880 current_ancestor = parent; | |
| 881 parent = XWINDOW (parent)->parent; | |
| 882 } | |
| 883 | |
| 884 /* This is really to catch the minibuffer but we make it generic in | |
| 885 case we ever change things around to let the minibuffer be on top. */ | |
| 886 if (NILP (XWINDOW (current_ancestor)->prev)) | |
| 887 return 1; | |
| 888 else | |
| 889 return 0; | |
| 890 } | |
| 891 | |
| 892 int | |
| 893 window_is_lowest (struct window *w) | |
| 894 { | |
| 895 Lisp_Object parent, current_ancestor, window; | |
| 896 | |
| 793 | 897 window = wrap_window (w); |
| 428 | 898 |
| 899 parent = XWINDOW (window)->parent; | |
| 900 current_ancestor = window; | |
| 901 | |
| 902 while (!NILP (parent)) | |
| 903 { | |
| 904 if (!NILP (XWINDOW (parent)->vchild) | |
| 905 && !NILP (XWINDOW (current_ancestor)->next)) | |
| 906 return 0; | |
| 907 | |
| 908 current_ancestor = parent; | |
| 909 parent = XWINDOW (parent)->parent; | |
| 910 } | |
| 911 | |
| 912 return 1; | |
| 913 } | |
| 914 | |
| 915 #if 0 /* not currently used */ | |
| 916 | |
| 917 static int | |
| 918 window_full_height_p (struct window *w) | |
| 919 { | |
| 920 return window_is_highest (w) && window_is_lowest (w); | |
| 921 } | |
| 922 | |
| 923 #endif | |
| 924 | |
| 925 int | |
| 926 window_truncation_on (struct window *w) | |
| 927 { | |
| 928 /* Minibuffer windows are never truncated. | |
| 440 | 929 #### is this the right way ? */ |
| 428 | 930 if (MINI_WINDOW_P (w)) |
| 931 return 0; | |
| 932 | |
| 933 /* Horizontally scrolled windows are truncated. */ | |
| 934 if (w->hscroll) | |
| 935 return 1; | |
| 936 | |
| 937 /* If truncate_partial_width_windows is true and the window is not | |
| 938 the full width of the frame it is truncated. */ | |
| 707 | 939 if (!NILP (symbol_value_in_buffer (Qtruncate_partial_width_windows, |
| 940 w->buffer)) | |
| 428 | 941 && !(window_is_leftmost (w) && window_is_rightmost (w))) |
| 942 return 1; | |
| 943 | |
| 944 /* If the window's buffer's value of truncate_lines is non-nil, then | |
| 945 the window is truncated. */ | |
| 946 if (!NILP (XBUFFER (w->buffer)->truncate_lines)) | |
| 947 return 1; | |
| 948 | |
| 949 return 0; | |
| 950 } | |
| 951 | |
| 952 DEFUN ("window-truncated-p", Fwindow_truncated_p, 0, 1, 0, /* | |
| 442 | 953 Returns non-nil if text in the window is truncated. |
| 428 | 954 */ |
| 955 (window)) | |
| 956 { | |
| 957 struct window *w = decode_window (window); | |
| 958 | |
| 959 return window_truncation_on (w) ? Qt : Qnil; | |
| 960 } | |
| 961 | |
| 962 | |
| 963 static int | |
| 964 have_undivided_common_edge (struct window *w_right, void *closure) | |
| 965 { | |
| 966 struct window *w_left = (struct window *) closure; | |
| 967 return (WINDOW_RIGHT (w_left) == WINDOW_LEFT (w_right) | |
| 968 && WINDOW_TOP (w_left) < WINDOW_BOTTOM (w_right) | |
| 969 && WINDOW_TOP (w_right) < WINDOW_BOTTOM (w_left) | |
| 970 #ifdef HAVE_SCROLLBARS | |
| 971 && (NILP (w_right->scrollbar_on_left_p) | |
| 972 || NILP (w_right->vertical_scrollbar_visible_p) | |
| 973 || ZEROP (w_right->scrollbar_width)) | |
| 974 #endif | |
| 975 ); | |
| 976 } | |
| 977 | |
| 978 static int | |
| 979 window_needs_vertical_divider_1 (struct window *w) | |
| 980 { | |
| 981 /* Never if we're on the right */ | |
| 982 if (window_is_rightmost (w)) | |
| 983 return 0; | |
| 984 | |
| 985 /* Always if draggable */ | |
| 986 if (!NILP (w->vertical_divider_always_visible_p)) | |
| 987 return 1; | |
| 988 | |
| 989 #ifdef HAVE_SCROLLBARS | |
| 990 /* Our right scrollbar is enough to separate us at the right */ | |
| 991 if (NILP (w->scrollbar_on_left_p) | |
| 992 && !NILP (w->vertical_scrollbar_visible_p) | |
| 993 && !ZEROP (w->scrollbar_width)) | |
| 994 return 0; | |
| 995 #endif | |
| 996 | |
| 997 /* Ok. to determine whether we need a divider on the left, we must | |
| 998 check that our right neighbor windows have scrollbars on their | |
| 999 left sides. We must check all such windows which have common | |
| 1000 left edge with our window's right edge. */ | |
| 1001 return map_windows (XFRAME (WINDOW_FRAME (w)), | |
| 1002 have_undivided_common_edge, (void*)w); | |
| 1003 } | |
| 1004 | |
| 1005 int | |
| 1006 window_needs_vertical_divider (struct window *w) | |
| 1007 { | |
| 1008 if (!w->need_vertical_divider_valid_p) | |
| 1009 { | |
| 1010 w->need_vertical_divider_p = | |
| 1011 window_needs_vertical_divider_1 (w); | |
| 1012 w->need_vertical_divider_valid_p = 1; | |
| 1013 } | |
| 1014 return w->need_vertical_divider_p; | |
| 1015 } | |
| 1016 | |
| 1017 /* Called from invalidate_vertical_divider_cache_in_frame */ | |
| 1018 int | |
| 1019 invalidate_vertical_divider_cache_in_window (struct window *w, | |
| 2286 | 1020 void *UNUSED (unused)) |
| 428 | 1021 { |
| 1022 w->need_vertical_divider_valid_p = 0; | |
| 1023 return 0; | |
| 1024 } | |
| 1025 | |
| 1026 /* Calculate width of vertical divider, including its shadows | |
| 1027 and spacing. The returned value is effectively the distance | |
| 1028 between adjacent window edges. This function does not check | |
| 1029 whether a window needs a vertical divider, so the returned | |
| 1030 value is a "theoretical" one */ | |
| 1031 int | |
| 1032 window_divider_width (struct window *w) | |
| 1033 { | |
| 1034 /* the shadow thickness can be negative. This means that the divider | |
| 1035 will have a depressed look */ | |
| 1036 | |
| 1037 if (FRAME_WIN_P (XFRAME (WINDOW_FRAME (w)))) | |
| 1038 return | |
| 1039 XINT (w->vertical_divider_line_width) | |
| 1040 + 2 * XINT (w->vertical_divider_spacing) | |
| 1041 + 2 * abs (XINT (w->vertical_divider_shadow_thickness)); | |
| 1042 else | |
| 1043 return XINT (w->vertical_divider_line_width) == 0 ? 0 : 1; | |
| 1044 } | |
| 1045 | |
| 1046 int | |
| 4932 | 1047 window_scrollbar_width (struct window * USED_IF_SCROLLBARS (w)) |
| 428 | 1048 { |
| 1049 #ifdef HAVE_SCROLLBARS | |
| 1050 if (!WINDOW_WIN_P (w) | |
| 1051 || MINI_WINDOW_P (w) | |
| 1052 || NILP (w->buffer) | |
| 1053 || NILP (w->vertical_scrollbar_visible_p)) | |
| 1054 /* #### when does NILP (w->buffer) happen? */ | |
| 1055 return 0; | |
| 1056 | |
| 1057 return XINT (w->scrollbar_width); | |
| 1058 #else | |
| 1059 return 0; | |
| 1060 #endif /* HAVE_SCROLLBARS */ | |
| 1061 } | |
| 1062 | |
| 1063 /* Horizontal scrollbars are only active on windows with truncation | |
| 1064 turned on. */ | |
| 1065 int | |
| 4932 | 1066 window_scrollbar_height (struct window * USED_IF_SCROLLBARS (w)) |
| 428 | 1067 { |
| 1068 #ifdef HAVE_SCROLLBARS | |
| 1069 if (!WINDOW_WIN_P (w) | |
| 1070 || MINI_WINDOW_P (w) | |
| 1071 || NILP (w->buffer) | |
| 1072 || NILP (w->horizontal_scrollbar_visible_p) | |
| 1073 || !window_truncation_on (w)) | |
| 1074 return 0; | |
| 1075 | |
| 1076 return XINT (w->scrollbar_height); | |
| 1077 #else | |
| 1078 return 0; | |
| 1079 #endif /* HAVE_SCROLLBARS */ | |
| 1080 } | |
| 1081 | |
| 1082 int | |
| 1083 window_modeline_height (struct window *w) | |
| 1084 { | |
| 1085 struct frame *f = XFRAME (w->frame); | |
| 1086 int modeline_height; | |
| 1087 | |
| 1088 if (MINI_WINDOW_P (w) || NILP (w->buffer)) | |
| 1089 { | |
| 1090 modeline_height = 0; | |
| 1091 } | |
| 1092 else if (!WINDOW_HAS_MODELINE_P (w)) | |
| 1093 { | |
| 1094 if (window_scrollbar_height (w)) | |
| 1095 modeline_height = 0; | |
| 1096 else | |
| 1097 { | |
| 1098 modeline_height = FRAMEMETH (f, divider_height, ()); | |
| 1099 | |
| 1100 if (!EQ (Qzero, w->modeline_shadow_thickness) && FRAME_WIN_P (f)) | |
| 1101 modeline_height += (2 * MODELINE_SHADOW_THICKNESS (w)); | |
| 1102 } | |
| 1103 } | |
| 1104 else | |
| 1105 { | |
| 1106 if (noninteractive) | |
| 1107 modeline_height = 0; | |
| 1108 else | |
| 1109 { | |
| 1110 display_line_dynarr *dla; | |
| 1111 | |
| 1112 /* We don't force a regeneration of the modeline here. | |
| 1113 Instead it is now a precondition that any function calling | |
| 1114 this should make sure that one of these structures is | |
| 1115 up-to-date. In practice this only affects two internal | |
| 1116 redisplay functions, regenerate_window and | |
| 1117 regenerate_window_point_center. */ | |
| 1118 /* We check DESIRED_DISP because if it is valid it is more | |
| 1119 up-to-date than CURRENT_DISP. For calls to this outside | |
| 1120 of redisplay it doesn't matter which structure we check | |
| 1121 since there is a redisplay condition that these | |
| 1122 structures be identical outside of redisplay. */ | |
| 1123 dla = window_display_lines (w, DESIRED_DISP); | |
| 4967 | 1124 if (dla && Dynarr_length (dla) && Dynarr_begin (dla)->modeline) |
| 1125 modeline_height = (Dynarr_begin (dla)->ascent + | |
| 1126 Dynarr_begin (dla)->descent); | |
| 428 | 1127 else |
| 1128 { | |
| 1129 dla = window_display_lines (w, CURRENT_DISP); | |
| 4967 | 1130 if (dla && Dynarr_length (dla) && Dynarr_begin (dla)->modeline) |
| 1131 modeline_height = (Dynarr_begin (dla)->ascent + | |
| 1132 Dynarr_begin (dla)->descent); | |
| 428 | 1133 else |
| 1134 /* This should be an abort except I'm not yet 100% | |
| 1135 confident that it won't ever get hit (though I | |
| 1136 haven't been able to trigger it). It is extremely | |
| 1137 unlikely to cause any noticeable problem and even if | |
| 1138 it does it will be a minor display glitch. */ | |
| 1139 /* #### Bullshit alert. It does get hit and it causes | |
| 1140 noticeable glitches. real_current_modeline_height | |
| 1141 is a kludge to fix this for 19.14. */ | |
| 1142 modeline_height = real_current_modeline_height (w); | |
| 1143 } | |
| 1144 | |
| 1145 if (!EQ (Qzero, w->modeline_shadow_thickness) && FRAME_WIN_P (f)) | |
| 1146 modeline_height += (2 * MODELINE_SHADOW_THICKNESS (w)); | |
| 1147 } | |
| 1148 } | |
| 1149 | |
| 1150 return modeline_height; | |
| 1151 } | |
| 1152 | |
| 1153 /***************************************************************************** | |
| 1154 margin_width_internal | |
| 1155 | |
| 1156 For a given window, return the width in pixels of the specified margin. | |
| 1157 ****************************************************************************/ | |
| 1158 static int | |
| 1159 margin_width_internal (struct window *w, int left_margin) | |
| 1160 { | |
| 1161 int window_cwidth = window_char_width (w, 1); | |
| 1162 int margin_cwidth; | |
| 1163 int font_width; | |
| 1164 Lisp_Object window; | |
| 1165 | |
| 1166 /* We might be getting called on a non-leaf. */ | |
| 1167 if (NILP (w->buffer)) | |
| 1168 return 0; | |
| 1169 | |
| 1170 /* The minibuffer never has margins. */ | |
| 1171 if (MINI_WINDOW_P (w)) | |
| 1172 return 0; | |
| 1173 | |
| 793 | 1174 window = wrap_window (w); |
| 428 | 1175 margin_cwidth = (left_margin ? XINT (w->left_margin_width) : |
| 1176 XINT (w->right_margin_width)); | |
| 1177 | |
|
5047
07dcc7000bbf
put width before height consistently, fix a real bug found in the process
Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
1178 default_face_width_and_height (window, &font_width, 0); |
| 428 | 1179 |
| 1180 /* The left margin takes precedence over the right margin so we | |
| 1181 subtract its width from the space available for the right | |
| 1182 margin. */ | |
| 1183 if (!left_margin) | |
| 1184 window_cwidth -= XINT (w->left_margin_width); | |
| 1185 | |
| 1186 /* The margin cannot be wider than the window is. We allow the | |
| 1187 value to be bigger since it is possible for the user to enlarge | |
| 1188 the window such that the left margin value would no longer be too | |
| 1189 big, but we won't return a value that is larger. */ | |
| 1190 if (margin_cwidth > window_cwidth) | |
| 1191 margin_cwidth = window_cwidth; | |
| 1192 | |
| 1193 /* At the user level the margin is always specified in characters. | |
| 1194 Internally however it is manipulated in terms of pixels. */ | |
| 1195 return margin_cwidth * font_width; | |
| 1196 } | |
| 1197 | |
| 1198 int | |
| 1199 window_left_margin_width (struct window *w) | |
| 1200 { | |
| 1201 return margin_width_internal (w, 1); | |
| 1202 } | |
| 1203 | |
| 1204 int | |
| 1205 window_right_margin_width (struct window *w) | |
| 1206 { | |
| 1207 return margin_width_internal (w, 0); | |
| 1208 } | |
| 1209 | |
| 1210 /***************************************************************************** | |
| 1211 Window Gutters | |
| 1212 | |
| 1213 The gutters of a window are those areas in the boundary defined by | |
| 1214 w->pixel_top, w->pixel_left, w->pixel_height and w->pixel_width which | |
| 1215 do not contain text. Items which may be in the gutters include | |
| 1216 scrollbars, toolbars and modelines. The margin areas are not | |
| 1217 included. This is an exception made because redisplay special cases | |
| 1218 the handling of those areas in many places in such a way that | |
| 1219 including them in the gutter area would make life difficult. | |
| 1220 | |
| 1221 The size functions refer to height for the bottom and top gutters and | |
| 1222 width for the left and right gutters. The starting position | |
| 1223 functions refer to the Y coord for bottom and top gutters and the X | |
| 1224 coord for left and right gutters. All starting positions are | |
| 1225 relative to the frame, not the window. | |
| 1226 ****************************************************************************/ | |
| 1227 | |
| 442 | 1228 static int |
| 1229 window_top_window_gutter_height (struct window *w) | |
| 1230 { | |
| 428 | 1231 if (!NILP (w->hchild) || !NILP (w->vchild)) |
| 1232 return 0; | |
| 1233 | |
| 1234 #ifdef HAVE_SCROLLBARS | |
| 1235 if (!NILP (w->scrollbar_on_top_p)) | |
| 442 | 1236 return window_scrollbar_height (w); |
| 428 | 1237 else |
| 1238 #endif | |
| 442 | 1239 return 0; |
| 428 | 1240 } |
| 1241 | |
| 1242 int | |
| 442 | 1243 window_top_gutter_height (struct window *w) |
| 1244 { | |
| 1245 return window_top_window_gutter_height (w); | |
| 1246 } | |
| 1247 | |
| 1248 static int | |
| 1249 window_bottom_window_gutter_height (struct window *w) | |
| 1250 { | |
| 1251 int gutter; | |
| 428 | 1252 |
| 1253 if (!NILP (w->hchild) || !NILP (w->vchild)) | |
| 1254 return 0; | |
| 1255 | |
| 442 | 1256 gutter = window_modeline_height (w); |
| 428 | 1257 |
| 1258 #ifdef HAVE_SCROLLBARS | |
| 1259 if (NILP (w->scrollbar_on_top_p)) | |
| 1260 return window_scrollbar_height (w) + gutter; | |
| 1261 else | |
| 1262 #endif | |
| 1263 return gutter; | |
| 1264 } | |
| 1265 | |
| 1266 int | |
| 442 | 1267 window_bottom_gutter_height (struct window *w) |
| 1268 { | |
| 1269 return window_bottom_window_gutter_height (w); | |
| 1270 } | |
| 1271 | |
| 1272 static int | |
| 4932 | 1273 window_left_window_gutter_width (struct window *w, |
| 1274 int USED_IF_SCROLLBARS (modeline)) | |
| 442 | 1275 { |
| 428 | 1276 if (!NILP (w->hchild) || !NILP (w->vchild)) |
| 1277 return 0; | |
| 1278 | |
| 1279 #ifdef HAVE_SCROLLBARS | |
| 1280 if (!modeline && !NILP (w->scrollbar_on_left_p)) | |
| 442 | 1281 return window_scrollbar_width (w); |
| 428 | 1282 #endif |
| 1283 | |
| 442 | 1284 return 0; |
| 428 | 1285 } |
| 1286 | |
| 1287 int | |
| 442 | 1288 window_left_gutter_width (struct window *w, int modeline) |
| 1289 { | |
| 1290 return window_left_window_gutter_width (w, modeline); | |
| 1291 } | |
| 1292 | |
| 1293 static int | |
| 4932 | 1294 window_right_window_gutter_width (struct window *w, |
| 1295 int USED_IF_SCROLLBARS (modeline)) | |
| 442 | 1296 { |
| 1297 int gutter = 0; | |
| 428 | 1298 |
| 1299 if (!NILP (w->hchild) || !NILP (w->vchild)) | |
| 1300 return 0; | |
| 1301 | |
| 1302 #ifdef HAVE_SCROLLBARS | |
| 1303 if (!modeline && NILP (w->scrollbar_on_left_p)) | |
| 1304 gutter += window_scrollbar_width (w); | |
| 1305 #endif | |
| 1306 | |
| 1307 if (window_needs_vertical_divider (w)) | |
| 1308 gutter += window_divider_width (w); | |
| 1309 | |
| 1310 return gutter; | |
| 1311 } | |
| 1312 | |
| 442 | 1313 int |
| 1314 window_right_gutter_width (struct window *w, int modeline) | |
| 1315 { | |
| 1316 return window_right_window_gutter_width (w, modeline); | |
| 1317 } | |
| 1318 | |
| 1319 static int | |
| 1320 window_pixel_height (struct window* w) | |
| 1321 { | |
| 1322 return WINDOW_HEIGHT (w); | |
| 1323 } | |
| 1324 | |
| 428 | 1325 |
| 1326 DEFUN ("windowp", Fwindowp, 1, 1, 0, /* | |
| 444 | 1327 Return t if OBJECT is a window. |
| 428 | 1328 */ |
| 444 | 1329 (object)) |
| 1330 { | |
| 1331 return WINDOWP (object) ? Qt : Qnil; | |
| 428 | 1332 } |
| 1333 | |
| 1334 DEFUN ("window-live-p", Fwindow_live_p, 1, 1, 0, /* | |
| 444 | 1335 Return t if OBJECT is a window which is currently visible. |
| 428 | 1336 */ |
| 444 | 1337 (object)) |
| 1338 { | |
| 1339 return WINDOWP (object) && WINDOW_LIVE_P (XWINDOW (object)) | |
| 1340 ? Qt : Qnil; | |
| 428 | 1341 } |
| 1342 | |
| 1343 DEFUN ("selected-window", Fselected_window, 0, 1, 0, /* | |
| 1344 Return the window that the cursor now appears in and commands apply to. | |
| 1345 If the optional argument CON-DEV-OR-FRAME is specified and is a frame, return | |
| 1346 the selected window used by that frame. If CON-DEV-OR-FRAME is a device, | |
| 1347 then the selected frame on that device will be used. If CON-DEV-OR-FRAME | |
| 1348 is a console, the selected frame on that console's selected device will | |
| 1349 be used. Otherwise, the selected frame is used. | |
| 1350 */ | |
| 1351 (con_dev_or_frame)) | |
| 1352 { | |
| 1353 if (NILP (con_dev_or_frame) && NILP (Fselected_device (Qnil))) | |
| 1354 return Qnil; /* happens at startup */ | |
| 1355 | |
| 1356 { | |
| 1357 struct frame *f = decode_frame_or_selected (con_dev_or_frame); | |
| 1358 return FRAME_SELECTED_WINDOW (f); | |
| 1359 } | |
| 1360 } | |
| 1361 | |
| 1362 DEFUN ("last-nonminibuf-window", Flast_nonminibuf_window, 0, 1, 0, /* | |
| 1363 Return the last selected window that is not a minibuffer window. | |
| 1364 If the optional argument CON-DEV-OR-FRAME is specified and is a frame, | |
| 1365 return the last non-minibuffer window used by that frame. If | |
| 1366 CON-DEV-OR-FRAME is a device, then the selected frame on that device | |
| 1367 will be used. If CON-DEV-OR-FRAME is a console, the selected frame on | |
| 1368 that console's selected device will be used. Otherwise, the selected | |
| 1369 frame is used. | |
| 1370 */ | |
| 1371 (con_dev_or_frame)) | |
| 1372 { | |
| 1373 if (NILP (con_dev_or_frame) && NILP (Fselected_device (Qnil))) | |
| 1374 return Qnil; /* happens at startup */ | |
| 1375 | |
| 1376 { | |
| 1377 struct frame *f = decode_frame_or_selected (con_dev_or_frame); | |
| 1378 return FRAME_LAST_NONMINIBUF_WINDOW (f); | |
| 1379 } | |
| 1380 } | |
| 1381 | |
| 1382 DEFUN ("minibuffer-window", Fminibuffer_window, 0, 1, 0, /* | |
| 1383 Return the window used now for minibuffers. | |
| 1384 If the optional argument CON-DEV-OR-FRAME is specified and is a frame, return | |
| 1385 the minibuffer window used by that frame. If CON-DEV-OR-FRAME is a device, | |
| 1386 then the selected frame on that device will be used. If CON-DEV-OR-FRAME | |
| 1387 is a console, the selected frame on that console's selected device will | |
| 1388 be used. Otherwise, the selected frame is used. | |
| 1389 */ | |
| 1390 (con_dev_or_frame)) | |
| 1391 { | |
| 1392 return FRAME_MINIBUF_WINDOW (decode_frame_or_selected (con_dev_or_frame)); | |
| 1393 } | |
| 1394 | |
| 438 | 1395 DEFUN ("window-minibuffer-p", Fwindow_minibuffer_p, 0, 1, 0, /* |
| 428 | 1396 Return non-nil if WINDOW is a minibuffer window. |
| 1397 */ | |
| 1398 (window)) | |
| 1399 { | |
| 1400 return MINI_WINDOW_P (decode_window (window)) ? Qt : Qnil; | |
| 1401 } | |
| 1402 | |
| 1403 DEFUN ("window-first-hchild", Fwindow_first_hchild, 1, 1, 0, /* | |
| 1404 Return the first horizontal child of WINDOW, or nil. | |
| 1405 */ | |
| 1406 (window)) | |
| 1407 { | |
| 1408 return decode_window (window)->hchild; | |
| 1409 } | |
| 1410 | |
| 1411 DEFUN ("window-first-vchild", Fwindow_first_vchild, 1, 1, 0, /* | |
| 1412 Return the first vertical child of WINDOW, or nil. | |
| 1413 */ | |
| 1414 (window)) | |
| 1415 { | |
| 1416 return decode_window (window)->vchild; | |
| 1417 } | |
| 1418 | |
| 1419 DEFUN ("window-next-child", Fwindow_next_child, 1, 1, 0, /* | |
| 1420 Return the next window on the same level as WINDOW, or nil. | |
| 1421 */ | |
| 1422 (window)) | |
| 1423 { | |
| 1424 return decode_window (window)->next; | |
| 1425 } | |
| 1426 | |
| 1427 DEFUN ("window-previous-child", Fwindow_previous_child, 1, 1, 0, /* | |
| 1428 Return the previous window on the same level as WINDOW, or nil. | |
| 1429 */ | |
| 1430 (window)) | |
| 1431 { | |
| 1432 return decode_window (window)->prev; | |
| 1433 } | |
| 1434 | |
| 1435 DEFUN ("window-parent", Fwindow_parent, 1, 1, 0, /* | |
| 1436 Return the parent of WINDOW, or nil. | |
| 1437 */ | |
| 1438 (window)) | |
| 1439 { | |
| 1440 return decode_window (window)->parent; | |
| 1441 } | |
| 1442 | |
| 1443 DEFUN ("window-lowest-p", Fwindow_lowest_p, 1, 1, 0, /* | |
| 1444 Return non-nil if WINDOW is along the bottom of its frame. | |
| 1445 */ | |
| 1446 (window)) | |
| 1447 { | |
| 1448 return window_is_lowest (decode_window (window)) ? Qt : Qnil; | |
| 1449 } | |
| 1450 | |
| 1451 DEFUN ("window-highest-p", Fwindow_highest_p, 1, 1, 0, /* | |
| 1452 Return non-nil if WINDOW is along the top of its frame. | |
| 1453 */ | |
| 1454 (window)) | |
| 1455 { | |
| 1456 return window_is_highest (decode_window (window)) ? Qt : Qnil; | |
| 1457 } | |
| 1458 | |
| 1459 DEFUN ("window-leftmost-p", Fwindow_leftmost_p, 1, 1, 0, /* | |
| 1460 Return non-nil if WINDOW is along the left edge of its frame. | |
| 1461 */ | |
| 1462 (window)) | |
| 1463 { | |
| 1464 return window_is_leftmost (decode_window (window)) ? Qt : Qnil; | |
| 1465 } | |
| 1466 | |
| 1467 DEFUN ("window-rightmost-p", Fwindow_rightmost_p, 1, 1, 0, /* | |
| 1468 Return non-nil if WINDOW is along the right edge of its frame. | |
| 1469 */ | |
| 1470 (window)) | |
| 1471 { | |
| 1472 return window_is_rightmost (decode_window (window)) ? Qt : Qnil; | |
| 1473 } | |
| 1474 | |
| 1708 | 1475 DEFUN ("pos-visible-in-window-p", Fpos_visible_in_window_p, 0, 3, 0, /* |
| 1476 Returns t if position POS is currently on the frame in WINDOW. | |
| 428 | 1477 Returns nil if that position is scrolled vertically out of view. |
| 1708 | 1478 If a character is only partially visible, nil is returned, unless the |
| 1479 optional argument PARTIALLY is non-nil. | |
| 428 | 1480 POS defaults to point in WINDOW's buffer; WINDOW, to the selected window. |
| 1481 */ | |
| 1708 | 1482 (pos, window, partially)) |
| 428 | 1483 { |
| 1484 struct window *w = decode_window (window); | |
| 665 | 1485 Charbpos top = marker_position (w->start[CURRENT_DISP]); |
| 1486 Charbpos posint; | |
| 428 | 1487 struct buffer *buf = XBUFFER (w->buffer); |
| 1488 | |
| 1489 if (NILP (pos)) | |
| 1490 posint = BUF_PT (buf); | |
| 1491 else | |
| 1492 { | |
| 1493 CHECK_INT_COERCE_MARKER (pos); | |
| 1494 posint = XINT (pos); | |
| 1495 } | |
| 1496 | |
| 1497 if (posint < top || posint > BUF_ZV (buf)) | |
| 1498 return Qnil; | |
| 1499 | |
| 1500 /* w->start can be out of range. If it is, do something reasonable. */ | |
| 1501 if (top < BUF_BEGV (buf) || top > BUF_ZV (buf)) | |
| 1502 return Qnil; | |
| 1503 | |
| 1708 | 1504 return point_would_be_visible (w, top, posint, !NILP (partially)) |
| 1505 ? Qt : Qnil; | |
| 428 | 1506 } |
| 1507 | |
| 1508 | |
| 1509 struct window * | |
| 1510 decode_window (Lisp_Object window) | |
| 1511 { | |
| 1512 if (NILP (window)) | |
| 1513 return XWINDOW (Fselected_window (Qnil)); | |
| 1514 | |
| 1515 CHECK_LIVE_WINDOW (window); | |
| 1516 return XWINDOW (window); | |
| 1517 } | |
| 1518 | |
| 872 | 1519 int |
| 1520 window_live_p (struct window *w) | |
| 1521 { | |
| 1522 return WINDOW_LIVE_P (w); | |
| 1523 } | |
| 1524 | |
| 1525 Lisp_Object | |
| 1526 window_frame (struct window *w) | |
| 1527 { | |
| 1528 return WINDOW_FRAME (w); | |
| 1529 } | |
| 1530 | |
| 1531 Lisp_Object | |
| 1532 window_buffer (struct window *w) | |
| 1533 { | |
| 1534 return WINDOW_BUFFER (w); | |
| 1535 } | |
| 1536 | |
| 428 | 1537 DEFUN ("window-buffer", Fwindow_buffer, 0, 1, 0, /* |
| 1538 Return the buffer that WINDOW is displaying. | |
| 1539 */ | |
| 1540 (window)) | |
| 1541 { | |
| 1542 return decode_window (window)->buffer; | |
| 1543 } | |
| 1544 | |
| 1545 DEFUN ("window-frame", Fwindow_frame, 0, 1, 0, /* | |
| 1546 Return the frame that window WINDOW is on. | |
| 1547 */ | |
| 1548 (window)) | |
| 1549 { | |
| 1550 return decode_window (window)->frame; | |
| 1551 } | |
| 1552 | |
| 1553 DEFUN ("window-height", Fwindow_height, 0, 1, 0, /* | |
| 1554 Return the number of default lines in WINDOW. | |
| 1555 This actually works by dividing the window's pixel height (including | |
| 1556 the modeline and horizontal scrollbar, if any) by the height of the | |
| 1557 default font; therefore, the number of displayed lines will probably | |
| 1558 be different. | |
| 1559 Use `window-height' to get consistent results in geometry calculations. | |
| 1560 Use `window-displayed-height' to get the actual number of lines | |
| 1561 currently displayed in a window. | |
| 442 | 1562 |
| 1563 The names are somewhat confusing; here's a table to help out: | |
| 1564 | |
| 1565 width height | |
| 1566 ------------------------------------------------------------------------- | |
| 1567 w/o gutters | |
| 1568 (rows/columns) window-width window-text-area-height | |
| 1569 (pixels) window-text-area-pixel-width window-text-area-pixel-height | |
| 1570 | |
| 1571 with gutters | |
| 1572 (rows/columns) window-full-width window-height | |
| 1573 (pixels) window-pixel-width window-pixel-height | |
| 1574 | |
| 1575 actually displayed | |
| 1576 (rows/columns) ---- window-displayed-height | |
| 1577 (pixels) ---- window-displayed-text-pixel-height | |
| 428 | 1578 */ |
| 1579 (window)) | |
| 1580 { | |
| 1581 return make_int (window_char_height (decode_window (window), 1)); | |
| 1582 } | |
| 1583 | |
| 1584 DEFUN ("window-displayed-height", Fwindow_displayed_height, 0, 1, 0, /* | |
| 1585 Return the number of lines currently displayed in WINDOW. | |
| 1586 This counts the actual number of lines displayed in WINDOW | |
| 1587 \(as opposed to `window-height'). The modeline and horizontal | |
| 1588 scrollbar do not count as lines. If there is some blank space | |
| 1589 between the end of the buffer and the end of the window, this | |
| 1590 function pretends that there are lines of text in the default | |
| 1591 font there. | |
| 1592 */ | |
| 1593 (window)) | |
| 1594 { | |
| 1595 return make_int (window_displayed_height (decode_window (window))); | |
| 1596 } | |
| 1597 | |
| 1598 DEFUN ("window-pixel-height", Fwindow_pixel_height, 0, 1, 0, /* | |
| 1599 Return the height of WINDOW in pixels. Defaults to current window. | |
| 1600 This includes the window's modeline and horizontal scrollbar (if any). | |
| 1601 */ | |
| 1602 (window)) | |
| 1603 { | |
| 442 | 1604 return make_int (window_pixel_height (decode_window (window))); |
| 1605 } | |
| 1606 | |
| 1607 DEFUN ("window-text-area-height", Fwindow_text_area_height, 0, 1, 0, /* | |
| 1608 Return the number of default lines in the text area of WINDOW. | |
| 1609 This actually works by dividing the window's text area pixel height (i.e. | |
| 1610 excluding the modeline and horizontal scrollbar, if any) by the height of the | |
| 1611 default font; therefore, the number of displayed lines will probably | |
| 1612 be different. | |
| 1613 See also `window-height' and `window-displayed-height'. | |
| 1614 */ | |
| 1615 (window)) | |
| 1616 { | |
| 1617 return make_int (window_char_height (decode_window (window), 0)); | |
| 428 | 1618 } |
| 1619 | |
| 1620 DEFUN ("window-text-area-pixel-height", | |
| 1621 Fwindow_text_area_pixel_height, 0, 1, 0, /* | |
| 1622 Return the height in pixels of the text-displaying portion of WINDOW. | |
| 1623 Unlike `window-pixel-height', the space occupied by the modeline and | |
| 1624 horizontal scrollbar, if any, is not counted. | |
| 1625 */ | |
| 1626 (window)) | |
| 1627 { | |
| 1628 struct window *w = decode_window (window); | |
| 1629 | |
| 1630 return make_int (WINDOW_TEXT_HEIGHT (w)); | |
| 1631 } | |
| 1632 | |
| 1633 DEFUN ("window-displayed-text-pixel-height", | |
| 1634 Fwindow_displayed_text_pixel_height, 0, 2, 0, /* | |
| 1635 Return the height in pixels of the text displayed in WINDOW. | |
| 1636 Unlike `window-text-area-pixel-height', any blank space below the | |
| 1637 end of the buffer is not included. If optional argument NOCLIPPED | |
| 1638 is non-nil, do not include space occupied by clipped lines. | |
| 1639 */ | |
| 1640 (window, noclipped)) | |
| 1641 { | |
| 1642 struct window *w; | |
| 665 | 1643 Charbpos start, eobuf; |
| 428 | 1644 int defheight; |
| 1645 int hlimit, height, prev_height = -1; | |
| 1646 int line; | |
| 1647 int elt, nelt, i; | |
| 1648 int needed; | |
| 1649 line_start_cache_dynarr *cache; | |
| 1650 | |
| 1651 if (NILP (window)) | |
| 1652 window = Fselected_window (Qnil); | |
| 1653 | |
| 1654 CHECK_LIVE_WINDOW (window); | |
| 1655 w = XWINDOW (window); | |
| 1656 | |
| 1657 start = marker_position (w->start[CURRENT_DISP]); | |
| 1658 hlimit = WINDOW_TEXT_HEIGHT (w); | |
| 1659 eobuf = BUF_ZV (XBUFFER (w->buffer)); | |
| 1660 | |
|
5047
07dcc7000bbf
put width before height consistently, fix a real bug found in the process
Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
1661 default_face_width_and_height (window, NULL, &defheight); |
| 428 | 1662 |
| 1663 /* guess lines needed in line start cache + a few extra */ | |
| 1664 needed = (hlimit + defheight-1) / defheight + 3; | |
| 1665 | |
| 1666 while (1) { | |
| 1667 elt = point_in_line_start_cache (w, start, needed); | |
| 1668 assert (elt >= 0); /* in the cache */ | |
| 1669 | |
| 1670 cache = w->line_start_cache; | |
| 1671 nelt = Dynarr_length (cache); | |
| 1672 | |
| 1673 height = 0; | |
| 1674 for (i = elt; i < nelt; i++) { | |
| 1675 line = Dynarr_atp (cache, i)->height; | |
| 1676 | |
| 1677 if (height + line > hlimit) | |
| 1678 return make_int (!NILP (noclipped) ? height : hlimit); | |
| 1679 | |
| 1680 height += line; | |
| 1681 | |
| 1682 if (height == hlimit || Dynarr_atp (cache, i)->end >= eobuf) | |
| 1683 return make_int (height); | |
| 1684 } | |
| 1685 | |
| 1686 /* get here => need more cache lines. try again. */ | |
| 1687 assert(height > prev_height); /* progress? */ | |
| 1688 prev_height = height; | |
| 1689 | |
| 1690 needed += ((hlimit - height)*(nelt - elt) + height-1)/height + 3; | |
| 1691 } | |
| 1692 | |
| 1204 | 1693 RETURN_NOT_REACHED(make_int (0)); /* shut up compiler */ |
| 428 | 1694 } |
| 1695 | |
| 1696 DEFUN ("window-width", Fwindow_width, 0, 1, 0, /* | |
| 1697 Return the number of display columns in WINDOW. | |
| 442 | 1698 This is the width that is usable columns available for text in WINDOW, |
| 1699 and does not include vertical scrollbars, dividers, or the like. See also | |
| 1700 `window-full-width' and `window-height'. | |
| 428 | 1701 */ |
| 1702 (window)) | |
| 1703 { | |
| 1704 return make_int (window_char_width (decode_window (window), 0)); | |
| 1705 } | |
| 1706 | |
| 442 | 1707 DEFUN ("window-full-width", Fwindow_full_width, 0, 1, 0, /* |
| 1708 Return the total number of columns in WINDOW. | |
| 1709 This is like `window-width' but includes vertical scrollbars, dividers, | |
| 1710 etc. | |
| 1711 */ | |
| 1712 (window)) | |
| 1713 { | |
| 1714 return make_int (window_char_width (decode_window (window), 1)); | |
| 1715 } | |
| 1716 | |
| 428 | 1717 DEFUN ("window-pixel-width", Fwindow_pixel_width, 0, 1, 0, /* |
| 1718 Return the width of WINDOW in pixels. Defaults to current window. | |
| 1719 */ | |
| 1720 (window)) | |
| 1721 { | |
| 1722 return make_int (decode_window (window)->pixel_width); | |
| 1723 } | |
| 1724 | |
| 1725 DEFUN ("window-text-area-pixel-width", | |
| 1726 Fwindow_text_area_pixel_width, 0, 1, 0, /* | |
| 1727 Return the width in pixels of the text-displaying portion of WINDOW. | |
| 1728 Unlike `window-pixel-width', the space occupied by the vertical | |
| 1729 scrollbar or divider, if any, is not counted. | |
| 1730 */ | |
| 1731 (window)) | |
| 1732 { | |
| 1733 struct window *w = decode_window (window); | |
| 1734 | |
| 1735 return make_int (WINDOW_TEXT_WIDTH (w)); | |
| 1736 } | |
| 1737 | |
| 1738 DEFUN ("window-hscroll", Fwindow_hscroll, 0, 1, 0, /* | |
| 1739 Return the number of columns by which WINDOW is scrolled from left margin. | |
| 1740 */ | |
| 1741 (window)) | |
| 1742 { | |
| 1743 return make_int (decode_window (window)->hscroll); | |
| 1744 } | |
| 1745 | |
| 1746 DEFUN ("modeline-hscroll", Fmodeline_hscroll, 0, 1, 0, /* | |
| 442 | 1747 Return the horizontal scrolling amount of WINDOW's modeline. |
| 438 | 1748 If the window has no modeline, return nil. |
| 428 | 1749 */ |
| 1750 (window)) | |
| 1751 { | |
| 1752 struct window *w = decode_window (window); | |
| 1753 | |
| 438 | 1754 return (WINDOW_HAS_MODELINE_P (w)) ? make_int ((int) w->modeline_hscroll) : |
| 1755 Qnil; | |
| 428 | 1756 } |
| 1757 | |
| 1758 DEFUN ("set-modeline-hscroll", Fset_modeline_hscroll, 2, 2, 0, /* | |
| 442 | 1759 Set the horizontal scrolling amount of WINDOW's modeline to NCOL. |
| 438 | 1760 If NCOL is negative, it will silently be forced to 0. |
| 1761 If the window has no modeline, return nil. Otherwise, return the actual | |
| 1762 value that was set. | |
| 428 | 1763 */ |
| 1764 (window, ncol)) | |
| 1765 { | |
| 1766 struct window *w = decode_window (window); | |
| 1767 | |
| 1768 if (WINDOW_HAS_MODELINE_P (w)) | |
| 1769 { | |
| 438 | 1770 Charcount ncols; |
| 1771 | |
| 428 | 1772 CHECK_INT (ncol); |
| 438 | 1773 ncols = (XINT (ncol) <= 0) ? 0 : (Charcount) XINT (ncol); |
| 1774 if (ncols != w->modeline_hscroll) | |
| 1775 { | |
| 1776 MARK_MODELINE_CHANGED; | |
| 1777 w->modeline_hscroll = ncols; | |
| 1778 } | |
| 1779 return make_int ((int) ncols); | |
| 428 | 1780 } |
| 438 | 1781 |
| 428 | 1782 return Qnil; |
| 1783 } | |
| 1784 | |
| 1785 DEFUN ("set-window-hscroll", Fset_window_hscroll, 2, 2, 0, /* | |
| 1786 Set number of columns WINDOW is scrolled from left margin to NCOL. | |
| 1787 NCOL should be zero or positive. | |
| 1788 */ | |
| 1789 (window, ncol)) | |
| 1790 { | |
| 1791 struct window *w; | |
| 1792 int ncols; | |
| 1793 | |
| 1794 CHECK_INT (ncol); | |
| 1795 ncols = XINT (ncol); | |
| 1796 if (ncols < 0) ncols = 0; | |
| 1797 w = decode_window (window); | |
| 1798 if (w->hscroll != ncols) | |
| 1799 MARK_CLIP_CHANGED; /* FSF marks differently but we aren't FSF. */ | |
| 1800 w->hscroll = ncols; | |
| 1801 return ncol; | |
| 1802 } | |
| 1803 | |
| 1804 DEFUN ("window-pixel-edges", Fwindow_pixel_edges, 0, 1, 0, /* | |
| 1805 Return a list of the pixel edge coordinates of WINDOW. | |
| 444 | 1806 The returned list is of the form (LEFT TOP RIGHT BOTTOM), |
| 1807 all relative to 0, 0 at the top left corner of WINDOW's frame. | |
| 1808 The frame toolbars, menubars and gutters are considered to be outside | |
| 1809 of this area, while the scrollbars are considered to be inside. | |
| 428 | 1810 */ |
| 1811 (window)) | |
| 1812 { | |
| 1813 struct window *w = decode_window (window); | |
| 1814 struct frame *f = XFRAME (w->frame); | |
| 1815 | |
| 442 | 1816 int left = |
| 1817 w->pixel_left - FRAME_LEFT_BORDER_END (f) - FRAME_LEFT_GUTTER_BOUNDS (f); | |
| 1818 int top = | |
| 1819 w->pixel_top - FRAME_TOP_BORDER_END (f) - FRAME_TOP_GUTTER_BOUNDS (f); | |
| 428 | 1820 |
| 1821 return list4 (make_int (left), | |
| 1822 make_int (top), | |
| 1823 make_int (left + w->pixel_width), | |
| 1824 make_int (top + w->pixel_height)); | |
| 1825 } | |
| 1826 | |
| 1827 DEFUN ("window-text-area-pixel-edges", | |
| 1828 Fwindow_text_area_pixel_edges, 0, 1, 0, /* | |
| 1829 Return a list of the pixel edge coordinates of the text area of WINDOW. | |
| 444 | 1830 The returned list is of the form (LEFT TOP RIGHT BOTTOM), |
| 1831 all relative to 0, 0 at the top left corner of the total area allocated | |
| 1832 to the window, which includes the scrollbars. | |
| 428 | 1833 */ |
| 1834 (window)) | |
| 1835 { | |
| 1836 struct window *w = decode_window (window); | |
| 1837 | |
| 1838 int left = window_left_gutter_width (w, /* modeline = */ 0); | |
| 1839 int top = window_top_gutter_height (w); | |
| 1840 int right = WINDOW_WIDTH (w) - window_right_gutter_width (w, 0); | |
| 1841 int bottom = WINDOW_HEIGHT (w) - window_bottom_gutter_height (w); | |
| 1842 | |
| 1843 return list4 (make_int (left), | |
| 1844 make_int (top), | |
| 1845 make_int (right), | |
| 1846 make_int (bottom)); | |
| 1847 } | |
| 1848 | |
| 1849 DEFUN ("window-point", Fwindow_point, 0, 1, 0, /* | |
| 1850 Return current value of point in WINDOW. | |
| 442 | 1851 For a non-selected window, this is the value point would have |
| 428 | 1852 if that window were selected. |
| 1853 | |
| 1854 Note that, when WINDOW is the selected window and its buffer | |
| 1855 is also currently selected, the value returned is the same as (point). | |
| 1856 It would be more strictly correct to return the `top-level' value | |
| 1857 of point, outside of any save-excursion forms. | |
| 444 | 1858 But that value is hard to find. |
| 428 | 1859 */ |
| 1860 (window)) | |
| 1861 { | |
| 1862 struct window *w = decode_window (window); | |
| 1863 | |
| 1864 /* The special check for current buffer is necessary for this | |
| 1865 function to work as defined when called within an excursion. */ | |
| 1866 if (w == XWINDOW (Fselected_window (XFRAME (w->frame)->device)) | |
| 1867 && current_buffer == XBUFFER (w->buffer)) | |
| 1868 return Fpoint (Qnil); | |
| 1869 return Fmarker_position (w->pointm[CURRENT_DISP]); | |
| 1870 } | |
| 1871 | |
| 1872 DEFUN ("window-start", Fwindow_start, 0, 1, 0, /* | |
| 1873 Return position at which display currently starts in WINDOW. | |
| 1874 This is updated by redisplay or by calling `set-window-start'. | |
| 1875 */ | |
| 1876 (window)) | |
| 1877 { | |
| 1878 return Fmarker_position (decode_window (window)->start[CURRENT_DISP]); | |
| 1879 } | |
| 1880 | |
| 1881 DEFUN ("window-end", Fwindow_end, 0, 2, 0, /* | |
| 1882 Return position at which display currently ends in WINDOW. | |
| 1883 This is updated by redisplay, when it runs to completion. | |
| 444 | 1884 Simply changing the buffer text or setting `window-start' does not |
| 1885 update this value. WINDOW defaults to the selected window. | |
| 1886 | |
| 1887 If optional arg GUARANTEE is non-nil, the return value is guaranteed | |
| 1888 to be the same value as this function would return at the end of the | |
| 1889 next full redisplay assuming nothing else changes in the meantime. | |
| 1890 This function is potentially much slower with this flag set. | |
| 428 | 1891 */ |
| 1892 (window, guarantee)) | |
| 1893 { | |
| 1894 struct window *w = decode_window (window); | |
| 1895 | |
| 1896 if (NILP (guarantee)) | |
| 1897 { | |
| 1898 Lisp_Object buf; | |
| 1899 buf = w->buffer; | |
| 1900 CHECK_BUFFER (buf); | |
| 1901 return make_int (BUF_Z (XBUFFER (buf)) - w->window_end_pos[CURRENT_DISP]); | |
| 1902 } | |
| 1903 else | |
| 1904 { | |
| 665 | 1905 Charbpos startp = marker_position (w->start[CURRENT_DISP]); |
| 428 | 1906 return make_int (end_of_last_line (w, startp)); |
| 1907 } | |
| 1908 } | |
| 1909 | |
| 442 | 1910 DEFUN ("window-last-line-visible-height", Fwindow_last_line_visible_height, 0, 1, 0, /* |
| 1911 Return pixel height of visible part of last window line if it is clipped. | |
| 1912 If the last line is not clipped, return nil. | |
| 1913 */ | |
| 1914 (window)) | |
| 1915 { | |
| 1916 struct window *w = decode_window (window); | |
| 1917 display_line_dynarr *dla = window_display_lines (w, CURRENT_DISP); | |
| 1918 int num_lines = Dynarr_length (dla); | |
| 1919 struct display_line *dl; | |
| 1920 | |
| 1921 /* No lines - no clipped lines */ | |
| 4967 | 1922 if (num_lines == 0 || (num_lines == 1 && Dynarr_begin (dla)->modeline)) |
| 442 | 1923 return Qnil; |
| 1924 | |
| 1925 dl = Dynarr_atp (dla, num_lines - 1); | |
| 1926 if (dl->clip == 0) | |
| 1927 return Qnil; | |
| 1928 | |
| 1929 return make_int (dl->ascent + dl->descent - dl->clip); | |
| 1930 } | |
| 1931 | |
| 428 | 1932 DEFUN ("set-window-point", Fset_window_point, 2, 2, 0, /* |
| 1933 Make point value in WINDOW be at position POS in WINDOW's buffer. | |
| 1161 | 1934 If WINDOW is the selected window, and window's buffer is the current |
| 1935 buffer, this actually changes the buffer's point instead of the window's | |
| 1936 point. (The equivalence of the selected window's point with its buffer's | |
| 1937 point is maintained throughout XEmacs. However, enforcing the additional | |
| 1938 restriction on the current buffer is "bug compatible" with FSF and is | |
| 1939 perhaps more logical.) | |
| 428 | 1940 */ |
| 1941 (window, pos)) | |
| 1942 { | |
| 1943 struct window *w = decode_window (window); | |
| 1944 | |
| 1945 CHECK_INT_COERCE_MARKER (pos); | |
| 1161 | 1946 |
| 844 | 1947 /* Don't dereference selected-window because there may not |
| 1948 be one -- e.g. at startup */ | |
| 1161 | 1949 if (EQ (wrap_window (w), Fselected_window (Qnil)) |
| 1950 && EQ (w->buffer, Fcurrent_buffer ())) | |
| 1951 Fgoto_char (pos, Qnil); | |
| 428 | 1952 else |
| 1953 set_marker_restricted (w->pointm[CURRENT_DISP], pos, w->buffer); | |
| 1954 | |
| 1955 MARK_POINT_CHANGED; | |
| 1956 return pos; | |
| 1957 } | |
| 1958 | |
| 1959 DEFUN ("set-window-start", Fset_window_start, 2, 3, 0, /* | |
| 1960 Make display in WINDOW start at position POS in WINDOW's buffer. | |
| 1961 Optional third arg NOFORCE non-nil inhibits next redisplay | |
| 1962 from overriding motion of point in order to display at this exact start. | |
| 1963 */ | |
| 1964 (window, pos, noforce)) | |
| 1965 { | |
| 1966 struct window *w = decode_window (window); | |
| 1967 | |
| 1968 CHECK_INT_COERCE_MARKER (pos); | |
| 1969 set_marker_restricted (w->start[CURRENT_DISP], pos, w->buffer); | |
| 1970 /* this is not right, but much easier than doing what is right. */ | |
| 1971 /* w->start_at_line_beg = 0; */ | |
| 1972 /* WTF is the above supposed to mean? GE */ | |
| 1973 w->start_at_line_beg = beginning_of_line_p (XBUFFER (w->buffer), | |
| 1974 marker_position (w->start[CURRENT_DISP])); | |
| 1975 if (NILP (noforce)) | |
| 1976 w->force_start = 1; | |
| 1977 w->redo_modeline = 1; | |
| 1978 SET_LAST_MODIFIED (w, 0); | |
| 1979 SET_LAST_FACECHANGE (w); | |
| 1980 | |
| 1981 MARK_WINDOWS_CHANGED (w); | |
| 1982 | |
| 1983 return pos; | |
| 1984 } | |
| 1985 | |
| 1986 DEFUN ("window-dedicated-p", Fwindow_dedicated_p, 1, 1, 0, /* | |
| 1987 Return WINDOW's dedicated object, usually t or nil. | |
| 1988 See also `set-window-dedicated-p'. | |
| 1989 */ | |
| 1990 (window)) | |
| 1991 { | |
| 1992 return decode_window (window)->dedicated; | |
| 1993 } | |
| 1994 | |
| 1995 DEFUN ("set-window-dedicated-p", Fset_window_dedicated_p, 2, 2, 0, /* | |
| 1996 Control whether WINDOW is dedicated to the buffer it displays. | |
| 1997 If it is dedicated, Emacs will not automatically change | |
| 1998 which buffer appears in it. | |
| 1999 The second argument is the new value for the dedication flag; | |
| 2000 non-nil means yes. | |
| 2001 */ | |
| 2002 (window, arg)) | |
| 2003 { | |
| 2004 struct window *w = decode_window (window); | |
| 2005 | |
| 2006 w->dedicated = NILP (arg) ? Qnil : Qt; | |
| 2007 | |
| 2008 return w->dedicated; | |
| 2009 } | |
| 2010 | |
| 2011 /* FSFmacs has window-display-table here. We have display table as a | |
| 2012 specifier. */ | |
| 2013 | |
| 2014 | |
| 2015 /* Record info on buffer window w is displaying | |
| 2016 when it is about to cease to display that buffer. */ | |
| 2017 static void | |
| 2018 unshow_buffer (struct window *w) | |
| 2019 { | |
| 2020 Lisp_Object buf = w->buffer; | |
| 844 | 2021 struct buffer *b = XBUFFER (buf); |
| 2022 | |
|
5050
6f2158fa75ed
Fix quick-build, use asserts() in place of ABORT()
Ben Wing <ben@xemacs.org>
parents:
4967
diff
changeset
|
2023 assert (b == XMARKER (w->pointm[CURRENT_DISP])->buffer); |
| 428 | 2024 |
| 2025 /* FSF disables this check, so I'll do it too. I hope it won't | |
| 2026 break things. --ben */ | |
| 2027 #if 0 | |
| 2028 if (w == XWINDOW (Fselected_window (Qnil)) | |
| 2029 || ! EQ (buf, XWINDOW (Fselected_window (Qnil))->buffer)) | |
| 2030 /* Do this except when the selected window's buffer | |
| 2031 is being removed from some other window. */ | |
| 2032 #endif | |
| 2033 /* last_window_start records the start position that this buffer | |
| 2034 had in the last window to be disconnected from it. | |
| 2035 Now that this statement is unconditional, | |
| 2036 it is possible for the buffer to be displayed in the | |
| 2037 selected window, while last_window_start reflects another | |
| 2038 window which was recently showing the same buffer. | |
| 2039 Some people might say that might be a good thing. Let's see. */ | |
| 2040 XBUFFER (buf)->last_window_start = | |
| 2041 marker_position (w->start[CURRENT_DISP]); | |
| 2042 | |
| 2043 /* Point in the selected window's buffer | |
| 2044 is actually stored in that buffer, and the window's pointm isn't used. | |
| 2045 So don't clobber point in that buffer. */ | |
| 2046 if (! EQ (buf, XWINDOW (Fselected_window (Qnil))->buffer)) | |
| 844 | 2047 BUF_SET_PT (b, |
| 2048 charbpos_clip_to_bounds | |
| 2049 (BUF_BEGV (b), | |
| 2050 marker_position (w->pointm[CURRENT_DISP]), | |
| 2051 BUF_ZV (b))); | |
| 2052 | |
| 2053 { | |
| 2054 Lisp_Object marker = Fgethash (buf, w->saved_point_cache, Qnil); | |
| 2055 int selected = EQ (wrap_window (w), Fselected_window (Qnil)); | |
| 2056 | |
| 2057 if (NILP (marker)) | |
| 2058 { | |
| 2059 marker = Fmake_marker (); | |
| 2060 Fputhash (buf, marker, w->saved_point_cache); | |
| 2061 } | |
| 2062 Fset_marker (marker, | |
| 2063 selected ? make_int (BUF_PT (b)) : w->pointm[CURRENT_DISP], | |
| 2064 buf); | |
| 2065 | |
| 2066 marker = Fgethash (buf, w->saved_last_window_start_cache, Qnil); | |
| 2067 | |
| 2068 if (NILP (marker)) | |
| 2069 { | |
| 2070 marker = Fmake_marker (); | |
| 2071 Fputhash (buf, marker, w->saved_last_window_start_cache); | |
| 2072 } | |
| 2073 Fset_marker (marker, w->start[CURRENT_DISP], buf); | |
| 2074 } | |
| 428 | 2075 } |
| 2076 | |
| 2077 /* Put REPLACEMENT into the window structure in place of OLD. */ | |
| 2078 static void | |
| 2079 replace_window (Lisp_Object old, Lisp_Object replacement) | |
| 2080 { | |
| 2081 Lisp_Object tem; | |
| 2082 struct window *o = XWINDOW (old), *p = XWINDOW (replacement); | |
| 2083 | |
| 2084 /* If OLD is its frame's root_window, then replacement is the new | |
| 2085 root_window for that frame. */ | |
| 2086 | |
| 2087 if (EQ (old, FRAME_ROOT_WINDOW (XFRAME (o->frame)))) | |
| 2088 FRAME_ROOT_WINDOW (XFRAME (o->frame)) = replacement; | |
| 2089 | |
| 2090 WINDOW_LEFT (p) = WINDOW_LEFT (o); | |
| 2091 WINDOW_TOP (p) = WINDOW_TOP (o); | |
| 2092 WINDOW_WIDTH (p) = WINDOW_WIDTH (o); | |
| 2093 WINDOW_HEIGHT (p) = WINDOW_HEIGHT (o); | |
| 2094 | |
| 2095 p->next = tem = o->next; | |
| 2096 if (!NILP (tem)) | |
| 2097 XWINDOW (tem)->prev = replacement; | |
| 2098 | |
| 2099 p->prev = tem = o->prev; | |
| 2100 if (!NILP (tem)) | |
| 2101 XWINDOW (tem)->next = replacement; | |
| 2102 | |
| 2103 p->parent = tem = o->parent; | |
| 2104 if (!NILP (tem)) | |
| 2105 { | |
| 2106 if (EQ (XWINDOW (tem)->vchild, old)) | |
| 2107 XWINDOW (tem)->vchild = replacement; | |
| 2108 if (EQ (XWINDOW (tem)->hchild, old)) | |
| 2109 XWINDOW (tem)->hchild = replacement; | |
| 2110 } | |
| 2111 | |
| 2112 /* #### Here, if replacement is a vertical combination | |
| 2113 and so is its new parent, we should make replacement's | |
| 2114 children be children of that parent instead. */ | |
| 442 | 2115 |
| 2116 ERROR_CHECK_SUBWINDOW_CACHE (p); | |
| 2117 } | |
| 2118 | |
| 2119 static void | |
| 2120 window_unmap_subwindows (struct window* w) | |
| 2121 { | |
| 2122 assert (!NILP (w->subwindow_instance_cache)); | |
| 2123 elisp_maphash (unmap_subwindow_instance_cache_mapper, | |
| 2124 w->subwindow_instance_cache, (void*)1); | |
| 428 | 2125 } |
| 2126 | |
| 2127 /* we're deleting W; set the structure of W to indicate this. */ | |
| 2128 | |
| 2129 static void | |
| 2130 mark_window_as_deleted (struct window *w) | |
| 2131 { | |
| 442 | 2132 /* The window instance cache is going away now, so need to get the |
| 2133 cachels reset by redisplay. */ | |
| 2134 MARK_FRAME_SUBWINDOWS_CHANGED (XFRAME (WINDOW_FRAME (w))); | |
| 2135 | |
| 2136 /* The cache is going away. If we leave unmapping to | |
| 2137 reset_subwindow_cachels then we get in a situation where the | |
| 2138 domain (the window) has been deleted but we still need access to | |
| 2139 its attributes in order to unmap windows properly. Since the | |
| 2140 subwindows are going to get GC'd anyway as a result of the domain | |
| 2141 going away, it is safer to just unmap them all while we know the | |
| 2142 domain is still valid. */ | |
| 2143 ERROR_CHECK_SUBWINDOW_CACHE (w); | |
| 2144 window_unmap_subwindows (w); | |
| 2145 | |
| 617 | 2146 /* Free the extra data structures attached to windows immediately so |
| 2147 they don't sit around consuming excess space. They will be | |
| 2148 reinitialized by the window-configuration code as necessary. */ | |
| 2149 finalize_window ((void *) w, 0); | |
| 2150 | |
| 1149 | 2151 /* Nobody should be accessing anything in this object any more, |
| 618 | 2152 and making them Qnil allows for better GC'ing in case a pointer |
| 2153 to the dead window continues to hang around. Zero all other | |
| 2154 structs in case someone tries to access something through them. | |
| 2155 | |
| 2156 (So, in point of fact, we zero out all of the "saved" slots, | |
| 2157 which are obviously restored from the window config, plus the | |
| 2158 slots which were already zeroed.) | |
| 617 | 2159 |
| 2160 As an example of why setting the values to Qnil is good, here | |
| 2161 is an old comment: | |
| 2162 | |
| 2163 In the loop | |
| 428 | 2164 (while t (split-window) (delete-window)) |
| 2165 we end up with a tree of deleted windows which are all connected | |
| 2166 through the `next' slot. This might not seem so bad, as they're | |
| 2167 deleted, and will presumably be GCed - but if even *one* of those | |
| 2168 windows is still being pointed to, by the user, or by a window | |
| 1149 | 2169 configuration, then *all* of those windows stick around. */ |
| 617 | 2170 |
| 618 | 2171 #define WINDOW_SLOT(slot) |
| 2172 #define WINDOW_SAVED_SLOT(slot, compare) w->slot = Qnil; | |
| 617 | 2173 #include "winslots.h" |
| 428 | 2174 |
| 618 | 2175 w->next = Qnil; |
| 2176 w->prev = Qnil; | |
| 2177 w->hchild = Qnil; | |
| 2178 w->vchild = Qnil; | |
| 2179 w->parent = Qnil; | |
| 2180 w->subwindow_instance_cache = Qnil; | |
| 2181 | |
| 428 | 2182 w->dead = 1; |
| 853 | 2183 note_object_deleted (wrap_window (w)); |
| 428 | 2184 } |
| 2185 | |
| 1207 | 2186 /* Check if window contains pwindow. */ |
| 2187 | |
| 2188 static int | |
| 2189 contains_window (Lisp_Object window, Lisp_Object pwindow) | |
| 2190 { | |
| 2191 while (!NILP (pwindow)) | |
| 2192 { | |
| 2193 if (EQ (window, pwindow)) | |
| 2194 return 1; | |
| 2195 pwindow = XWINDOW (pwindow)->parent; | |
| 2196 } | |
| 2197 return 0; | |
| 2198 } | |
| 2199 | |
| 428 | 2200 DEFUN ("delete-window", Fdelete_window, 0, 2, "", /* |
| 2201 Remove WINDOW from the display. Default is selected window. | |
| 444 | 2202 If window is the only one on its frame, the frame is deleted as well. |
| 428 | 2203 Normally, you cannot delete the last non-minibuffer-only frame (you must |
| 2204 use `save-buffers-kill-emacs' or `kill-emacs'). However, if optional | |
| 2205 second argument FORCE is non-nil, you can delete the last frame. (This | |
| 2206 will automatically call `save-buffers-kill-emacs'.) | |
| 2207 */ | |
| 2208 (window, force)) | |
| 2209 { | |
| 2210 /* This function can GC if this is the only window in the frame */ | |
| 2211 struct window *w; | |
| 2212 Lisp_Object parent; | |
| 2213 struct window *par; | |
| 2214 Lisp_Object frame; | |
| 2215 struct frame *f; | |
| 2216 struct device *d; | |
| 2217 | |
| 2218 /* Note: this function is called by other C code on non-leaf | |
| 2219 windows. */ | |
| 2220 | |
| 2221 /* Do the equivalent of decode_window() but don't error out on | |
| 2222 deleted window; it's OK to delete an already-deleted window. */ | |
| 2223 if (NILP (window)) | |
| 2224 window = Fselected_window (Qnil); | |
| 2225 else | |
| 2226 CHECK_WINDOW (window); | |
| 442 | 2227 |
| 428 | 2228 w = XWINDOW (window); |
| 2229 | |
| 2230 /* It's okay to delete an already-deleted window. */ | |
| 2231 if (! WINDOW_LIVE_P (w)) | |
| 2232 return Qnil; | |
| 2233 | |
| 853 | 2234 check_allowed_operation (OPERATION_DELETE_OBJECT, window, Qnil); |
| 2235 | |
| 428 | 2236 frame = WINDOW_FRAME (w); |
| 2237 f = XFRAME (frame); | |
| 2238 d = XDEVICE (FRAME_DEVICE (f)); | |
| 2239 | |
| 2240 if (TOP_LEVEL_WINDOW_P (w)) | |
| 2241 { | |
| 2242 if (NILP (memq_no_quit (frame, DEVICE_FRAME_LIST (d)))) | |
| 2243 /* this frame isn't fully initialized yet; don't blow up. */ | |
| 2244 return Qnil; | |
| 2245 | |
| 2246 if (MINI_WINDOW_P (XWINDOW (window))) | |
| 563 | 2247 signal_error (Qinvalid_operation, "Attempt to delete the minibuffer window", Qunbound); |
| 428 | 2248 |
| 2249 /* It has been suggested that it's a good thing for C-x 0 to have this | |
| 2250 behavior, but not such a good idea for #'delete-window to have it. | |
| 2251 Maybe C-x 0 should be bound to something else, or maybe frame | |
| 2252 deletion should only happen when this is called interactively. | |
| 2253 */ | |
| 2254 delete_frame_internal (f, !NILP (force), 0, 0); | |
| 2255 return Qnil; | |
| 2256 } | |
| 2257 | |
| 2258 /* At this point, we know the window has a parent. */ | |
| 2259 parent = w->parent; | |
| 2260 par = XWINDOW (parent); | |
| 2261 | |
| 2262 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f); | |
| 430 | 2263 /* It's quite likely that deleting a window will result in |
| 2264 subwindows needing to be deleted also (since they are cached | |
| 2265 per-window). So we mark them as changed, so that the cachels will | |
| 2266 get reset by redisplay and thus deleted subwindows can get | |
| 2267 GC'd. */ | |
| 2268 MARK_FRAME_SUBWINDOWS_CHANGED (f); | |
| 428 | 2269 |
| 2270 /* Are we trying to delete any frame's selected window? | |
| 2271 Note that we could be dealing with a non-leaf window | |
| 2272 where the selected window is one of our children. | |
| 2273 So, we check by scanning all the ancestors of the | |
| 2274 frame's selected window and comparing each one with | |
| 2275 WINDOW. */ | |
| 1207 | 2276 if (contains_window (window, FRAME_SELECTED_WINDOW (f))) |
| 2277 { | |
| 2278 Lisp_Object alternative; | |
| 2279 alternative = Fnext_window (window, Qlambda, Qnil, Qnil); | |
| 2280 | |
| 2281 /* #### */ | |
| 2282 /* If we're about to delete the selected window on the | |
| 2283 selected frame, then we should use Fselect_window to select | |
| 2284 the new window. On the other hand, if we're about to | |
| 2285 delete the selected window on any other frame, we shouldn't do | |
| 2286 anything but set the frame's selected_window slot. */ | |
| 2287 if (EQ (frame, Fselected_frame (Qnil))) | |
| 2288 Fselect_window (alternative, Qnil); | |
| 2289 else | |
| 2290 set_frame_selected_window (f, alternative); | |
| 2291 } | |
| 2292 | |
| 2293 /* Some display parameters (gutter display specifically) depend on | |
| 2294 FRAME_LAST_NONMINIBUF (f) to be set to a live window. Ensure that. */ | |
| 2295 if (contains_window (window, FRAME_LAST_NONMINIBUF_WINDOW (f))) | |
| 2296 f->last_nonminibuf_window = Fnext_window (window, Qlambda, Qnil, Qnil); | |
| 428 | 2297 |
| 2298 /* w->buffer is nil in a non-leaf window; in this case, | |
| 2299 get rid of the markers we maintain that point into that buffer. */ | |
| 2300 if (!NILP (w->buffer)) | |
| 2301 { | |
| 2302 unshow_buffer (w); | |
| 2303 unchain_marker (w->pointm[CURRENT_DISP]); | |
| 2304 unchain_marker (w->pointm[DESIRED_DISP]); | |
| 2305 unchain_marker (w->pointm[CMOTION_DISP]); | |
| 2306 unchain_marker (w->start[CURRENT_DISP]); | |
| 2307 unchain_marker (w->start[DESIRED_DISP]); | |
| 2308 unchain_marker (w->start[CMOTION_DISP]); | |
| 2309 unchain_marker (w->sb_point); | |
| 1149 | 2310 w->buffer = Qnil; |
| 428 | 2311 } |
| 2312 | |
| 2313 /* close up the hole in the sibling list */ | |
| 2314 if (!NILP (w->next)) | |
| 2315 XWINDOW (w->next)->prev = w->prev; | |
| 2316 if (!NILP (w->prev)) | |
| 2317 XWINDOW (w->prev)->next = w->next; | |
| 2318 if (EQ (window, par->hchild)) | |
| 2319 par->hchild = w->next; | |
| 2320 if (EQ (window, par->vchild)) | |
| 2321 par->vchild = w->next; | |
| 2322 | |
| 2323 /* Find one of our siblings to give our space to. */ | |
| 2324 { | |
| 2325 Lisp_Object sib = w->prev; | |
| 2326 if (NILP (sib)) | |
| 2327 { | |
| 2328 /* If w gives its space to its next sibling, that sibling needs | |
| 2329 to have its top/left side pulled back to where w's is. | |
| 2330 set_window_{height,width} will re-position the sibling's | |
| 2331 children. */ | |
| 2332 sib = w->next; | |
| 2333 WINDOW_TOP (XWINDOW (sib)) = WINDOW_TOP (w); | |
| 2334 WINDOW_LEFT (XWINDOW (sib)) = WINDOW_LEFT (w); | |
| 2335 } | |
| 2336 | |
| 2337 /* Stretch that sibling. */ | |
| 2338 if (!NILP (par->vchild)) | |
| 2339 set_window_pixheight | |
| 2340 (sib, (WINDOW_HEIGHT (XWINDOW (sib)) + WINDOW_HEIGHT (w)), 1); | |
| 2341 if (!NILP (par->hchild)) | |
| 2342 set_window_pixwidth | |
| 2343 (sib, (WINDOW_WIDTH (XWINDOW (sib)) + WINDOW_WIDTH (w)), 1); | |
| 2344 } | |
| 2345 | |
| 2346 /* If parent now has only one child, | |
| 2347 put the child into the parent's place. */ | |
| 2348 { | |
| 2349 Lisp_Object parchild = par->hchild; | |
| 2350 if (NILP (parchild)) | |
| 2351 parchild = par->vchild; | |
| 2352 if (NILP (XWINDOW (parchild)->next)) | |
| 2353 { | |
| 2354 replace_window (parent, parchild); | |
| 2355 mark_window_as_deleted (XWINDOW (parent)); | |
| 2356 } | |
| 2357 } | |
| 2358 | |
| 2359 /* Since we may be deleting combination windows, we must make sure that | |
| 2360 not only W but all its children have been marked as deleted. */ | |
| 2361 if (!NILP (w->hchild)) | |
| 2362 delete_all_subwindows (XWINDOW (w->hchild)); | |
| 2363 else if (!NILP (w->vchild)) | |
| 2364 delete_all_subwindows (XWINDOW (w->vchild)); | |
| 2365 | |
| 1752 | 2366 /* Warning: mark_window_as_deleted calls window_unmap_subwindows and |
| 2367 therefore redisplay, so it requires the mirror structure to be | |
| 2368 correct. We must dirty the mirror before it is called. */ | |
| 2369 f->mirror_dirty = 1; | |
| 2370 | |
| 428 | 2371 mark_window_as_deleted (w); |
| 2372 | |
| 2373 return Qnil; | |
| 2374 } | |
| 2375 | |
| 2376 | |
| 2377 DEFUN ("next-window", Fnext_window, 0, 4, 0, /* | |
| 442 | 2378 Return the next window after WINDOW in the canonical ordering of windows. |
| 428 | 2379 If omitted, WINDOW defaults to the selected window. |
| 2380 | |
| 2381 Optional second arg MINIBUF t means count the minibuffer window even | |
| 2382 if not active. MINIBUF nil or omitted means count the minibuffer iff | |
| 2383 it is active. MINIBUF neither t nor nil means not to count the | |
| 2384 minibuffer even if it is active. | |
| 2385 | |
| 2386 Several frames may share a single minibuffer; if the minibuffer | |
| 2387 counts, all windows on all frames that share that minibuffer count | |
| 2388 too. Therefore, `next-window' can be used to iterate through the | |
| 2389 set of windows even when the minibuffer is on another frame. If the | |
| 2390 minibuffer does not count, only windows from WINDOW's frame count. | |
| 2391 | |
| 444 | 2392 By default, only the windows in the selected frame are considered. |
| 2393 The optional argument WHICH-FRAMES changes this behavior: | |
| 2394 WHICH-FRAMES = `visible' means search windows on all visible frames. | |
| 448 | 2395 WHICH-FRAMES = 0 means search windows on all visible and iconified frames. |
| 444 | 2396 WHICH-FRAMES = t means search windows on all frames including invisible frames. |
| 2397 WHICH-FRAMES = a frame means search only windows on that frame. | |
| 2398 Anything else means restrict to the selected frame. | |
| 2399 | |
| 2400 The optional fourth argument WHICH-DEVICES further clarifies on which | |
| 2401 devices to search for frames as specified by WHICH-FRAMES. This value | |
| 2402 is only meaningful if WHICH-FRAMES is non-nil. | |
| 2403 If nil or omitted, search all devices on the selected console. | |
| 2404 If a device, only search that device. | |
| 2405 If a console, search all devices on that console. | |
| 2406 If a device type, search all devices of that type. | |
| 2407 If `window-system', search all window-system devices. | |
| 2408 Any other non-nil value means search all devices. | |
| 2409 | |
| 2410 If you use consistent values for MINIBUF, WHICH-FRAMES, and WHICH-DEVICES, | |
| 2411 you can use `next-window' to iterate through the entire cycle of | |
| 2412 acceptable windows, eventually ending up back at the window you started with. | |
| 428 | 2413 `previous-window' traverses the same cycle, in the reverse order. |
| 2414 */ | |
| 444 | 2415 (window, minibuf, which_frames, which_devices)) |
| 428 | 2416 { |
| 2417 Lisp_Object tem; | |
| 2418 Lisp_Object start_window; | |
| 2419 | |
| 2420 if (NILP (window)) | |
| 2421 window = Fselected_window (Qnil); | |
| 2422 else | |
| 2423 CHECK_LIVE_WINDOW (window); | |
| 2424 | |
| 2425 start_window = window; | |
| 2426 | |
| 2427 /* minibuf == nil may or may not include minibuffers. | |
| 2428 Decide if it does. */ | |
| 2429 if (NILP (minibuf)) | |
| 2430 minibuf = (minibuf_level ? minibuf_window : Qlambda); | |
| 2431 else if (! EQ (minibuf, Qt)) | |
| 2432 minibuf = Qlambda; | |
| 442 | 2433 /* Now `minibuf' is one of: |
| 2434 t => count all minibuffer windows | |
| 2435 lambda => count none of them | |
| 428 | 2436 or a specific minibuffer window (the active one) to count. */ |
| 2437 | |
| 444 | 2438 /* which_frames == nil doesn't specify which frames to include. */ |
| 2439 if (NILP (which_frames)) | |
| 2440 which_frames = (! EQ (minibuf, Qlambda) | |
| 428 | 2441 ? (FRAME_MINIBUF_WINDOW |
| 2442 (XFRAME | |
| 2443 (WINDOW_FRAME | |
| 2444 (XWINDOW (window))))) | |
| 2445 : Qnil); | |
| 444 | 2446 else if (EQ (which_frames, Qvisible)) |
| 428 | 2447 ; |
| 444 | 2448 else if (ZEROP (which_frames)) |
| 428 | 2449 ; |
| 444 | 2450 else if (FRAMEP (which_frames) && ! EQ (which_frames, Fwindow_frame (window))) |
| 2451 /* If which_frames is a frame and window arg isn't on that frame, just | |
| 428 | 2452 return the first window on the frame. */ |
| 444 | 2453 return frame_first_window (XFRAME (which_frames)); |
| 2454 else if (! EQ (which_frames, Qt)) | |
| 2455 which_frames = Qnil; | |
| 2456 /* Now `which_frames' is one of: | |
| 442 | 2457 t => search all frames |
| 2458 nil => search just the current frame | |
| 2459 visible => search just visible frames | |
| 2460 0 => search visible and iconified frames | |
| 2461 a window => search the frame that window belongs to. */ | |
| 428 | 2462 |
| 2463 /* Do this loop at least once, to get the next window, and perhaps | |
| 2464 again, if we hit the minibuffer and that is not acceptable. */ | |
| 2465 do | |
| 2466 { | |
| 2467 /* Find a window that actually has a next one. This loop | |
| 2468 climbs up the tree. */ | |
| 2469 while (tem = XWINDOW (window)->next, NILP (tem)) | |
| 2470 if (tem = XWINDOW (window)->parent, !NILP (tem)) | |
| 2471 window = tem; | |
| 2472 else /* window must be minibuffer window now */ | |
| 2473 { | |
| 2474 /* We've reached the end of this frame. | |
| 2475 Which other frames are acceptable? */ | |
| 2476 tem = WINDOW_FRAME (XWINDOW (window)); | |
| 2477 | |
| 444 | 2478 if (! NILP (which_frames)) |
| 428 | 2479 { |
| 442 | 2480 Lisp_Object tem1 = tem; |
| 444 | 2481 tem = next_frame (tem, which_frames, which_devices); |
| 442 | 2482 |
| 428 | 2483 /* In the case where the minibuffer is active, |
| 2484 and we include its frame as well as the selected one, | |
| 2485 next_frame may get stuck in that frame. | |
| 2486 If that happens, go back to the selected frame | |
| 2487 so we can complete the cycle. */ | |
| 2488 if (EQ (tem, tem1)) | |
| 793 | 2489 tem = wrap_frame (selected_frame ()); |
| 428 | 2490 } |
| 2491 | |
| 2492 tem = FRAME_ROOT_WINDOW (XFRAME (tem)); | |
| 2493 break; | |
| 2494 } | |
| 2495 | |
| 2496 window = tem; | |
| 2497 | |
| 2498 /* If we're in a combination window, find its first child and | |
| 2499 recurse on that. Otherwise, we've found the window we want. */ | |
| 2500 while (1) | |
| 2501 { | |
| 2502 if (!NILP (XWINDOW (window)->hchild)) | |
| 2503 window = XWINDOW (window)->hchild; | |
| 2504 else if (!NILP (XWINDOW (window)->vchild)) | |
| 2505 window = XWINDOW (window)->vchild; | |
| 2506 else break; | |
| 2507 } | |
| 2508 } | |
| 2509 /* Which windows are acceptable? | |
| 2510 Exit the loop and accept this window if | |
| 2511 this isn't a minibuffer window, | |
| 2512 or we're accepting all minibuffer windows, | |
| 2513 or this is the active minibuffer and we are accepting that one, or | |
| 2514 we've come all the way around and we're back at the original window. */ | |
| 2515 while (MINI_WINDOW_P (XWINDOW (window)) | |
| 2516 && ! EQ (minibuf, Qt) | |
| 2517 && ! EQ (minibuf, window) | |
| 2518 && ! EQ (window, start_window)); | |
| 2519 | |
| 2520 return window; | |
| 2521 } | |
| 2522 | |
| 2523 DEFUN ("previous-window", Fprevious_window, 0, 4, 0, /* | |
| 442 | 2524 Return the window preceding WINDOW in the canonical ordering of windows. |
| 428 | 2525 If omitted, WINDOW defaults to the selected window. |
| 2526 | |
| 2527 Optional second arg MINIBUF t means count the minibuffer window even | |
| 2528 if not active. MINIBUF nil or omitted means count the minibuffer iff | |
| 2529 it is active. MINIBUF neither t nor nil means not to count the | |
| 2530 minibuffer even if it is active. | |
| 2531 | |
| 2532 Several frames may share a single minibuffer; if the minibuffer | |
| 2533 counts, all windows on all frames that share that minibuffer count | |
| 2534 too. Therefore, `previous-window' can be used to iterate through | |
| 2535 the set of windows even when the minibuffer is on another frame. If | |
| 442 | 2536 the minibuffer does not count, only windows from WINDOW's frame count. |
| 2537 | |
| 444 | 2538 By default, only the windows in the selected frame are considered. |
| 2539 The optional argument WHICH-FRAMES changes this behavior: | |
| 2540 WHICH-FRAMES = `visible' means search windows on all visible frames. | |
| 448 | 2541 WHICH-FRAMES = 0 means search windows on all visible and iconified frames. |
| 444 | 2542 WHICH-FRAMES = t means search windows on all frames including invisible frames. |
| 2543 WHICH-FRAMES = a frame means search only windows on that frame. | |
| 2544 Anything else means restrict to the selected frame. | |
| 2545 | |
| 2546 The optional fourth argument WHICH-DEVICES further clarifies on which | |
| 2547 devices to search for frames as specified by WHICH-FRAMES. This value | |
| 2548 is only meaningful if WHICH-FRAMES is non-nil. | |
| 2549 If nil or omitted, search all devices on the selected console. | |
| 2550 If a device, only search that device. | |
| 2551 If a console, search all devices on that console. | |
| 2552 If a device type, search all devices of that type. | |
| 2553 If `window-system', search all window-system devices. | |
| 2554 Any other non-nil value means search all devices. | |
| 2555 | |
| 2556 If you use consistent values for MINIBUF, WHICH-FRAMES, and WHICH-DEVICES, | |
| 2557 you can use `previous-window' to iterate through the entire cycle of | |
| 2558 acceptable windows, eventually ending up back at the window you started with. | |
| 428 | 2559 `next-window' traverses the same cycle, in the reverse order. |
| 2560 */ | |
| 444 | 2561 (window, minibuf, which_frames, devices)) |
| 428 | 2562 { |
| 2563 Lisp_Object tem; | |
| 2564 Lisp_Object start_window; | |
| 2565 | |
| 2566 if (NILP (window)) | |
| 2567 window = Fselected_window (Qnil); | |
| 2568 else | |
| 2569 CHECK_LIVE_WINDOW (window); | |
| 2570 | |
| 2571 start_window = window; | |
| 2572 | |
| 2573 /* minibuf == nil may or may not include minibuffers. | |
| 2574 Decide if it does. */ | |
| 2575 if (NILP (minibuf)) | |
| 2576 minibuf = (minibuf_level ? minibuf_window : Qlambda); | |
| 2577 else if (! EQ (minibuf, Qt)) | |
| 2578 minibuf = Qlambda; | |
| 442 | 2579 /* Now `minibuf' is one of: |
| 2580 t => count all minibuffer windows | |
| 2581 lambda => count none of them | |
| 428 | 2582 or a specific minibuffer window (the active one) to count. */ |
| 2583 | |
| 444 | 2584 /* which_frames == nil doesn't specify which frames to include. |
| 428 | 2585 Decide which frames it includes. */ |
| 444 | 2586 if (NILP (which_frames)) |
| 2587 which_frames = (! EQ (minibuf, Qlambda) | |
| 428 | 2588 ? (FRAME_MINIBUF_WINDOW |
| 2589 (XFRAME | |
| 2590 (WINDOW_FRAME | |
| 2591 (XWINDOW (window))))) | |
| 2592 : Qnil); | |
| 444 | 2593 else if (EQ (which_frames, Qvisible)) |
| 428 | 2594 ; |
| 444 | 2595 else if (ZEROP (which_frames)) |
| 428 | 2596 ; |
| 444 | 2597 else if (FRAMEP (which_frames) && ! EQ (which_frames, Fwindow_frame (window))) |
| 2598 /* If which_frames is a frame and window arg isn't on that frame, just | |
| 428 | 2599 return the first window on the frame. */ |
| 444 | 2600 return frame_first_window (XFRAME (which_frames)); |
| 2601 else if (! EQ (which_frames, Qt)) | |
| 2602 which_frames = Qnil; | |
| 2603 /* Now `which_frames' is one of: | |
| 442 | 2604 t => search all frames |
| 2605 nil => search just the current frame | |
| 2606 visible => search just visible frames | |
| 2607 0 => search visible and iconified frames | |
| 2608 a window => search the frame that window belongs to. */ | |
| 428 | 2609 |
| 2610 /* Do this loop at least once, to get the next window, and perhaps | |
| 2611 again, if we hit the minibuffer and that is not acceptable. */ | |
| 2612 do | |
| 2613 { | |
| 2614 /* Find a window that actually has a next one. This loop | |
| 2615 climbs up the tree. */ | |
| 2616 while (tem = XWINDOW (window)->prev, NILP (tem)) | |
| 2617 if (tem = XWINDOW (window)->parent, !NILP (tem)) | |
| 2618 window = tem; | |
| 2619 else /* window must be minibuffer window now */ | |
| 2620 { | |
| 2621 /* We have found the top window on the frame. | |
| 2622 Which frames are acceptable? */ | |
| 2623 tem = WINDOW_FRAME (XWINDOW (window)); | |
| 2624 | |
| 444 | 2625 if (! NILP (which_frames)) |
| 442 | 2626 /* It's actually important that we use previous_frame here, |
| 428 | 2627 rather than next_frame. All the windows acceptable |
| 2628 according to the given parameters should form a ring; | |
| 2629 Fnext_window and Fprevious_window should go back and | |
| 2630 forth around the ring. If we use next_frame here, | |
| 2631 then Fnext_window and Fprevious_window take different | |
| 2632 paths through the set of acceptable windows. | |
| 2633 window_loop assumes that these `ring' requirement are | |
| 2634 met. */ | |
| 2635 { | |
| 442 | 2636 Lisp_Object tem1 = tem; |
| 444 | 2637 tem = previous_frame (tem, which_frames, devices); |
| 428 | 2638 /* In the case where the minibuffer is active, |
| 2639 and we include its frame as well as the selected one, | |
| 2640 next_frame may get stuck in that frame. | |
| 2641 If that happens, go back to the selected frame | |
| 2642 so we can complete the cycle. */ | |
| 2643 if (EQ (tem, tem1)) | |
| 793 | 2644 tem = wrap_frame (selected_frame ()); |
| 428 | 2645 } |
| 2646 | |
| 2647 /* If this frame has a minibuffer, find that window first, | |
| 2648 because it is conceptually the last window in that frame. */ | |
| 2649 if (FRAME_HAS_MINIBUF_P (XFRAME (tem))) | |
| 2650 tem = FRAME_MINIBUF_WINDOW (XFRAME (tem)); | |
| 2651 else | |
| 2652 tem = FRAME_ROOT_WINDOW (XFRAME (tem)); | |
| 2653 | |
| 2654 break; | |
| 2655 } | |
| 2656 | |
| 2657 window = tem; | |
| 2658 | |
| 2659 /* If we're in a combination window, find its first child and | |
| 2660 recurse on that. Otherwise, we've found the window we want. */ | |
| 2661 while (1) | |
| 2662 { | |
| 2663 if (!NILP (XWINDOW (window)->hchild)) | |
| 2664 window = XWINDOW (window)->hchild; | |
| 2665 else if (!NILP (XWINDOW (window)->vchild)) | |
| 2666 window = XWINDOW (window)->vchild; | |
| 2667 else break; | |
| 2668 while (tem = XWINDOW (window)->next, !NILP (tem)) | |
| 2669 window = tem; | |
| 2670 } | |
| 2671 } | |
| 2672 /* Which windows are acceptable? | |
| 2673 Exit the loop and accept this window if | |
| 2674 this isn't a minibuffer window, | |
| 2675 or we're accepting all minibuffer windows, | |
| 2676 or this is the active minibuffer and we are accepting that one, or | |
| 2677 we've come all the way around and we're back at the original window. */ | |
| 2678 while (MINI_WINDOW_P (XWINDOW (window)) | |
| 2679 && ! EQ (minibuf, Qt) | |
| 2680 && ! EQ (minibuf, window) | |
| 2681 && ! EQ (window, start_window)); | |
| 2682 | |
| 2683 return window; | |
| 2684 } | |
| 2685 | |
| 2686 DEFUN ("next-vertical-window", Fnext_vertical_window, 0, 1, 0, /* | |
| 2687 Return the next window which is vertically after WINDOW. | |
| 2688 */ | |
| 2689 (window)) | |
| 2690 { | |
| 2691 Lisp_Object root; | |
| 2692 struct window *w = decode_window (window); | |
| 793 | 2693 window = wrap_window (w); |
| 428 | 2694 |
| 2695 if (MINI_WINDOW_P (XWINDOW (window))) | |
| 2696 return Qnil; | |
| 2697 | |
| 2698 root = FRAME_ROOT_WINDOW (XFRAME (WINDOW_FRAME (XWINDOW (window)))); | |
| 2699 | |
| 2700 if (EQ (window, root)) | |
| 2701 { | |
| 2702 while (1) | |
| 2703 if (!NILP (XWINDOW (window)->hchild)) | |
| 2704 window = XWINDOW (window)->hchild; | |
| 2705 else if (!NILP (XWINDOW (window)->vchild)) | |
| 2706 window = XWINDOW (window)->vchild; | |
| 2707 else | |
| 2708 return window; | |
| 2709 } | |
| 2710 | |
| 2711 do | |
| 2712 { | |
| 2713 if (!NILP (XWINDOW (window)->parent) && | |
| 2714 !NILP (XWINDOW (XWINDOW (window)->parent)->vchild)) | |
| 2715 { | |
| 2716 if (!NILP (XWINDOW (window)->next)) | |
| 2717 return XWINDOW (window)->next; | |
| 2718 else | |
| 2719 window = XWINDOW (window)->parent; | |
| 2720 } | |
| 2721 else | |
| 2722 window = XWINDOW (window)->parent; | |
| 2723 } | |
| 2724 while (!EQ (window, root)); | |
| 2725 | |
| 2726 while (1) | |
| 2727 if (!NILP (XWINDOW (window)->hchild)) | |
| 2728 window = XWINDOW (window)->hchild; | |
| 2729 else if (!NILP (XWINDOW (window)->vchild)) | |
| 2730 window = XWINDOW (window)->vchild; | |
| 2731 else | |
| 2732 return window; | |
| 2733 } | |
| 2734 | |
| 2735 DEFUN ("other-window", Fother_window, 1, 3, "p", /* | |
| 444 | 2736 Select the COUNT'th different window on this frame. |
| 428 | 2737 All windows on current frame are arranged in a cyclic order. |
| 444 | 2738 This command selects the window COUNT steps away in that order. |
| 2739 A negative COUNT moves in the opposite order. | |
| 2740 | |
| 2741 By default, only the windows in the selected frame are considered. | |
| 2742 The optional argument WHICH-FRAMES changes this behavior: | |
| 2743 WHICH-FRAMES = `visible' means search windows on all visible frames. | |
| 448 | 2744 WHICH-FRAMES = 0 means search windows on all visible and iconified frames. |
| 444 | 2745 WHICH-FRAMES = t means search windows on all frames including invisible frames. |
| 2746 WHICH-FRAMES = a frame means search only windows on that frame. | |
| 2747 Anything else means restrict to the selected frame. | |
| 2748 | |
| 2749 The optional argument WHICH-DEVICES further clarifies on which devices | |
| 2750 to search for frames as specified by WHICH-FRAMES. This value is only | |
| 2751 meaningful if WHICH-FRAMES is non-nil. | |
| 2752 If nil or omitted, search all devices on the selected console. | |
| 2753 If a device, only search that device. | |
| 2754 If a console, search all devices on that console. | |
| 2755 If a device type, search all devices of that type. | |
| 2756 If `window-system', search all window-system devices. | |
| 2757 Any other non-nil value means search all devices. | |
| 428 | 2758 */ |
| 444 | 2759 (count, which_frames, which_devices)) |
| 428 | 2760 { |
| 2761 int i; | |
| 2762 Lisp_Object w; | |
| 2763 | |
| 444 | 2764 CHECK_INT (count); |
| 428 | 2765 w = Fselected_window (Qnil); |
| 444 | 2766 i = XINT (count); |
| 428 | 2767 |
| 2768 while (i > 0) | |
| 2769 { | |
| 444 | 2770 w = Fnext_window (w, Qnil, which_frames, which_devices); |
| 428 | 2771 i--; |
| 2772 } | |
| 2773 while (i < 0) | |
| 2774 { | |
| 444 | 2775 w = Fprevious_window (w, Qnil, which_frames, which_devices); |
| 428 | 2776 i++; |
| 2777 } | |
| 2778 Fselect_window (w, Qnil); | |
| 2779 return Qnil; | |
| 2780 } | |
| 2781 | |
| 2782 | |
| 2783 /* Look at all windows, performing an operation specified by TYPE | |
| 2784 with argument OBJ. | |
| 2785 | |
| 2786 If FRAMES is Qt, look at all frames, if Qnil, look at just the selected | |
| 2787 frame. If FRAMES is a frame, just look at windows on that frame. | |
| 2788 If MINI is non-zero, perform the operation on minibuffer windows too. | |
| 2789 */ | |
| 2790 | |
| 2791 enum window_loop | |
| 2792 { | |
| 2793 WINDOW_LOOP_UNUSED, | |
| 2794 GET_BUFFER_WINDOW, /* Arg is buffer */ | |
| 2795 GET_LRU_WINDOW, /* Arg is t for full-width windows only */ | |
| 2796 DELETE_OTHER_WINDOWS, /* Arg is window not to delete */ | |
| 2797 DELETE_BUFFER_WINDOWS, /* Arg is buffer */ | |
| 2798 GET_LARGEST_WINDOW, | |
| 2799 GET_BUFFER_WINDOW_COUNT, /* Arg is buffer */ | |
| 2800 GET_BUFFER_MRU_WINDOW /* Arg is buffer */ | |
| 2801 }; | |
| 2802 | |
| 2803 static Lisp_Object | |
| 2804 window_loop (enum window_loop type, | |
| 2805 Lisp_Object obj, | |
| 2806 int mini, | |
| 444 | 2807 Lisp_Object which_frames, |
| 428 | 2808 int dedicated_too, |
| 444 | 2809 Lisp_Object which_devices) |
| 428 | 2810 { |
| 448 | 2811 /* This function can GC if type == DELETE_BUFFER_WINDOWS */ |
| 428 | 2812 Lisp_Object w; |
| 2813 Lisp_Object best_window = Qnil; | |
| 2814 Lisp_Object next_window; | |
| 2815 Lisp_Object last_window; | |
| 2816 struct frame *frame; | |
| 2817 Lisp_Object frame_arg = Qt; | |
| 2818 int count = 0; /* for GET_BUFFER_WINDOW_COUNT */ | |
| 2819 /* #### I think the change of "precomputing" last_window and next_window | |
| 2820 * #### catch the lossage this is meant(?) to punt on... | |
| 2821 */ | |
| 2822 int lose_lose = 0; | |
| 2823 Lisp_Object devcons, concons; | |
| 2824 | |
| 2825 /* If we're only looping through windows on a particular frame, | |
| 2826 FRAME points to that frame. If we're looping through windows | |
| 2827 on all frames, FRAME is 0. */ | |
| 444 | 2828 if (FRAMEP (which_frames)) |
| 2829 frame = XFRAME (which_frames); | |
| 2830 else if (NILP (which_frames)) | |
| 428 | 2831 frame = selected_frame (); |
| 2832 else | |
| 2833 frame = 0; | |
| 442 | 2834 |
| 2835 /* FRAME_ARG is Qlambda to stick to one frame, | |
| 2836 Qvisible to consider all visible frames, | |
| 2837 or Qt otherwise. */ | |
| 428 | 2838 if (frame) |
| 2839 frame_arg = Qlambda; | |
| 444 | 2840 else if (ZEROP (which_frames)) |
| 2841 frame_arg = which_frames; | |
| 2842 else if (EQ (which_frames, Qvisible)) | |
| 2843 frame_arg = which_frames; | |
| 428 | 2844 |
| 2845 DEVICE_LOOP_NO_BREAK (devcons, concons) | |
| 2846 { | |
| 2847 Lisp_Object device = XCAR (devcons); | |
| 2848 Lisp_Object the_frame; | |
| 2849 | |
| 2850 if (frame) | |
| 793 | 2851 the_frame = wrap_frame (frame); |
| 428 | 2852 else |
| 2853 the_frame = DEVICE_SELECTED_FRAME (XDEVICE (device)); | |
| 2854 | |
| 2855 if (NILP (the_frame)) | |
| 2856 continue; | |
| 2857 | |
| 444 | 2858 if (!device_matches_device_spec (device, |
| 2859 NILP (which_devices) ? | |
| 2860 FRAME_CONSOLE (XFRAME (the_frame)) : | |
| 2861 which_devices)) | |
| 428 | 2862 continue; |
| 2863 | |
| 2864 /* Pick a window to start with. */ | |
| 2865 if (WINDOWP (obj)) | |
| 2866 w = obj; | |
| 2867 else | |
| 2868 w = FRAME_SELECTED_WINDOW (XFRAME (the_frame)); | |
| 2869 | |
| 2870 /* Figure out the last window we're going to mess with. Since | |
| 2871 Fnext_window, given the same options, is guaranteed to go in a | |
| 2872 ring, we can just use Fprevious_window to find the last one. | |
| 2873 | |
| 2874 We can't just wait until we hit the first window again, | |
| 2875 because it might be deleted. */ | |
| 2876 | |
| 707 | 2877 last_window = Fprevious_window (w, mini ? Qt : Qnil, frame_arg, device); |
| 428 | 2878 |
| 2879 best_window = Qnil; | |
| 2880 for (;;) | |
| 2881 { | |
| 2882 struct window *p = XWINDOW (w); | |
| 2883 | |
| 2884 /* Pick the next window now, since some operations will delete | |
| 2885 the current window. */ | |
| 442 | 2886 next_window = Fnext_window (w, mini ? Qt : Qnil, frame_arg, device); |
| 428 | 2887 |
| 2888 /* #### Still needed ?? */ | |
| 2889 /* Given the outstanding quality of the rest of this code, | |
| 2890 I feel no shame about putting this piece of shit in. */ | |
| 2891 if (++lose_lose >= 500) | |
| 707 | 2892 { |
| 2500 | 2893 /* Call to ABORT() added by Darryl Okahata (16 Nov. 2001), |
| 707 | 2894 at Ben's request, to catch any remaining bugs. |
| 2895 | |
| 2896 If you find that XEmacs is aborting here, and you | |
| 2897 need to be up and running ASAP, it should be safe to | |
| 2500 | 2898 comment out the following ABORT(), as long as you |
| 707 | 2899 leave the "break;" alone. */ |
| 2500 | 2900 ABORT(); |
| 707 | 2901 break; /* <--- KEEP THIS HERE! Do not delete! */ |
| 2902 } | |
| 428 | 2903 |
| 2904 /* Note that we do not pay attention here to whether | |
| 2905 the frame is visible, since Fnext_window skips non-visible frames | |
| 2906 if that is desired, under the control of frame_arg. */ | |
| 2907 if (! MINI_WINDOW_P (p) | |
| 2908 || (mini && minibuf_level > 0)) | |
| 2909 switch (type) | |
| 2910 { | |
| 2911 case GET_BUFFER_WINDOW: | |
| 2912 { | |
| 2913 if (XBUFFER (p->buffer) == XBUFFER (obj)) | |
| 2914 return w; | |
| 2915 break; | |
| 2916 } | |
| 2917 | |
| 2918 case GET_BUFFER_WINDOW_COUNT: | |
| 2919 { | |
| 2920 if (XBUFFER (p->buffer) == XBUFFER (obj)) | |
| 2921 count++; | |
| 2922 break; | |
| 2923 } | |
| 2924 | |
| 2925 case GET_LRU_WINDOW: | |
| 2926 { | |
| 2927 /* t as arg means consider only full-width windows */ | |
| 2928 if (!NILP (obj) | |
| 2929 && !window_full_width_p (p)) | |
| 2930 break; | |
| 2931 /* Ignore dedicated windows and minibuffers. */ | |
| 2932 if (MINI_WINDOW_P (p) | |
| 2933 || (dedicated_too ? 0 : !NILP (p->dedicated))) | |
| 2934 break; | |
| 2935 if (NILP (best_window) | |
| 2936 || (XINT (XWINDOW (best_window)->use_time) | |
| 2937 > XINT (p->use_time))) | |
| 2938 best_window = w; | |
| 2939 break; | |
| 2940 } | |
| 2941 | |
| 2942 case GET_BUFFER_MRU_WINDOW: | |
| 2943 { | |
| 2944 /* #### what about the first check in GET_LRU_WINDOW? */ | |
| 2945 /* Ignore dedicated windows and minibuffers. */ | |
| 2946 if (MINI_WINDOW_P (p) | |
| 2947 || (dedicated_too ? 0 : !NILP (p->dedicated))) | |
| 2948 break; | |
| 2949 | |
| 2950 if (XBUFFER (p->buffer) == XBUFFER (obj)) | |
| 2951 { | |
| 2952 if (NILP (best_window) | |
| 2953 || (XINT (XWINDOW (best_window)->use_time) | |
| 2954 < XINT (p->use_time))) | |
| 2955 best_window = w; | |
| 2956 } | |
| 2957 break; | |
| 2958 } | |
| 2959 | |
| 2960 case DELETE_OTHER_WINDOWS: | |
| 2961 { | |
| 2962 /* Don't delete the last window on a frame; this can | |
| 2963 happen when the minibuffer is selected, and would | |
| 2964 cause the frame to be deleted. */ | |
| 2965 if (p != XWINDOW (obj) && !TOP_LEVEL_WINDOW_P (XWINDOW (w))) | |
| 2966 Fdelete_window (w, Qnil); | |
| 2967 break; | |
| 2968 } | |
| 2969 | |
| 2970 case DELETE_BUFFER_WINDOWS: | |
| 2971 { | |
| 2972 if (EQ (p->buffer, obj)) | |
| 2973 { | |
| 2974 struct frame *f = XFRAME (WINDOW_FRAME (p)); | |
| 2975 | |
| 2976 /* If this window is dedicated, and in a frame | |
| 2977 of its own, kill the frame. */ | |
| 2978 if (EQ (w, FRAME_ROOT_WINDOW (f)) | |
| 2979 && !NILP (p->dedicated) | |
| 1979 | 2980 && (allow_deletion_of_last_visible_frame |
| 2981 || other_visible_frames (f))) | |
| 428 | 2982 { |
| 2983 /* Skip the other windows on this frame. | |
| 2984 There might be one, the minibuffer! */ | |
| 2985 if (! EQ (w, last_window)) | |
| 2986 while (f == XFRAME (WINDOW_FRAME | |
| 2987 (XWINDOW (next_window)))) | |
| 2988 { | |
| 2989 /* As we go, check for the end of the | |
| 2990 loop. We mustn't start going | |
| 2991 around a second time. */ | |
| 2992 if (EQ (next_window, last_window)) | |
| 2993 { | |
| 2994 last_window = w; | |
| 2995 break; | |
| 2996 } | |
| 2997 next_window = Fnext_window (next_window, | |
| 2998 mini ? Qt : Qnil, | |
| 2999 frame_arg, Qt); | |
| 3000 } | |
| 3001 /* Now we can safely delete the frame. */ | |
| 3002 Fdelete_frame (WINDOW_FRAME (p), Qnil); | |
| 3003 } | |
| 3004 else | |
| 3005 /* If we're deleting the buffer displayed in | |
| 3006 the only window on the frame, find a new | |
| 3007 buffer to display there. */ | |
| 3008 if (NILP (p->parent)) | |
| 3009 { | |
| 3010 Lisp_Object new_buffer; | |
| 3011 new_buffer = Fother_buffer (obj, Qnil, Qnil); | |
| 3012 if (NILP (new_buffer)) | |
| 3013 new_buffer = Fget_buffer_create (QSscratch); | |
| 440 | 3014 Fset_window_buffer (w, new_buffer, Qnil); |
| 428 | 3015 if (EQ (w, Fselected_window (Qnil))) |
| 3016 Fset_buffer (p->buffer); | |
| 3017 } | |
| 3018 else | |
| 3019 Fdelete_window (w, Qnil); | |
| 3020 } | |
| 3021 break; | |
| 3022 } | |
| 3023 | |
| 3024 case GET_LARGEST_WINDOW: | |
| 3025 { | |
| 3026 /* Ignore dedicated windows and minibuffers. */ | |
| 3027 if (MINI_WINDOW_P (p) | |
| 3028 || (dedicated_too ? 0 : !NILP (p->dedicated))) | |
| 3029 break; | |
| 3030 { | |
| 3031 /* write the check as follows to avoid tripping | |
| 3032 error_check_window() --ben */ | |
| 3033 struct window *b = NILP (best_window) ? 0 : | |
| 3034 XWINDOW (best_window); | |
| 3035 if (NILP (best_window) | |
| 3036 || ((WINDOW_HEIGHT (p) * WINDOW_WIDTH (p)) | |
| 3037 > (WINDOW_HEIGHT (b) * WINDOW_WIDTH (b)))) | |
| 3038 best_window = w; | |
| 3039 } | |
| 3040 break; | |
| 3041 } | |
| 3042 | |
| 3043 default: | |
| 2500 | 3044 ABORT (); |
| 428 | 3045 } |
| 3046 | |
| 3047 if (EQ (w, last_window)) | |
| 3048 break; | |
| 3049 | |
| 3050 w = next_window; | |
| 3051 } | |
| 3052 } | |
| 3053 | |
| 3054 return type == GET_BUFFER_WINDOW_COUNT ? make_int (count) : best_window; | |
| 3055 } | |
| 3056 | |
| 3057 #if 0 /* not currently used */ | |
| 3058 | |
| 3059 int | |
| 3060 buffer_window_count (struct buffer *b, struct frame *f) | |
| 3061 { | |
| 3062 Lisp_Object buffer, frame; | |
| 3063 | |
| 793 | 3064 frame = wrap_frame (f); |
| 3065 buffer = wrap_buffer (b); | |
| 428 | 3066 |
| 3067 return XINT (window_loop (GET_BUFFER_WINDOW_COUNT, buffer, 0, frame, 1, | |
| 3068 Qnil)); | |
| 3069 } | |
| 3070 | |
| 3071 int | |
| 3072 buffer_window_mru (struct window *w) | |
| 3073 { | |
| 3074 Lisp_Object window = | |
| 3075 window_loop (GET_BUFFER_MRU_WINDOW, w->buffer, 0, w->frame, 1, Qnil); | |
| 3076 | |
| 3077 if (NILP (window)) | |
| 3078 return 0; | |
| 3079 else if (XWINDOW (window) == w) | |
| 3080 return 1; | |
| 3081 else | |
| 3082 return 0; | |
| 3083 } | |
| 3084 | |
| 3085 #endif | |
| 3086 | |
| 3087 | |
| 3088 DEFUN ("get-lru-window", Fget_lru_window, 0, 2, 0, /* | |
| 3089 Return the window least recently selected or used for display. | |
| 444 | 3090 |
| 3091 By default, only the windows in the selected frame are considered. | |
| 3092 The optional argument WHICH-FRAMES changes this behavior: | |
| 3093 If optional argument WHICH-FRAMES is `visible', search all visible frames. | |
| 3094 If WHICH-FRAMES is 0, search all visible and iconified frames. | |
| 3095 If WHICH-FRAMES is t, search all frames. | |
| 3096 If WHICH-FRAMES is nil, search only the selected frame. | |
| 3097 If WHICH-FRAMES is a frame, search only that frame. | |
| 3098 | |
| 3099 The optional argument WHICH-DEVICES further clarifies on which devices | |
| 3100 to search for frames as specified by WHICH-FRAMES. This value is only | |
| 3101 meaningful if WHICH-FRAMES is non-nil. | |
| 3102 If nil or omitted, search all devices on the selected console. | |
| 3103 If a device, only search that device. | |
| 3104 If a console, search all devices on that console. | |
| 3105 If a device type, search all devices of that type. | |
| 3106 If `window-system', search all devices on window-system consoles. | |
| 3107 Any other non-nil value means search all devices. | |
| 428 | 3108 */ |
| 444 | 3109 (which_frames, which_devices)) |
| 428 | 3110 { |
| 3111 Lisp_Object w; | |
| 3112 /* First try for a non-dedicated window that is full-width */ | |
| 444 | 3113 w = window_loop (GET_LRU_WINDOW, Qt, 0, which_frames, 0, which_devices); |
| 428 | 3114 if (!NILP (w) && !EQ (w, Fselected_window (Qnil))) |
| 3115 return w; | |
| 3116 | |
| 3117 /* Then try for any non-dedicated window */ | |
| 444 | 3118 w = window_loop (GET_LRU_WINDOW, Qnil, 0, which_frames, 0, which_devices); |
| 428 | 3119 if (!NILP (w) && !EQ (w, Fselected_window (Qnil))) |
| 3120 return w; | |
| 3121 | |
| 3122 #if 0 | |
| 3123 /* FSFmacs never returns a dedicated window here. If we do, | |
| 3124 it makes `display-buffer' not work right. #### All of this | |
| 3125 shit is so disgusting and awful that it needs to be rethought | |
| 3126 from scratch. */ | |
| 3127 /* then try for a dedicated window that is full-width */ | |
| 444 | 3128 w = window_loop (GET_LRU_WINDOW, Qt, 0, which_frames, 1, which_devices); |
| 428 | 3129 if (!NILP (w) && !EQ (w, Fselected_window (Qnil))) |
| 3130 return w; | |
| 3131 | |
| 3132 /* If none of them, then all windows, dedicated or not. */ | |
| 444 | 3133 w = window_loop (GET_LRU_WINDOW, Qnil, 0, which_frames, 1, which_devices); |
| 428 | 3134 |
| 3135 /* At this point we damn well better have found something. */ | |
|
5050
6f2158fa75ed
Fix quick-build, use asserts() in place of ABORT()
Ben Wing <ben@xemacs.org>
parents:
4967
diff
changeset
|
3136 assert (!NILP (w)); |
| 428 | 3137 #endif |
| 3138 | |
| 3139 return w; | |
| 3140 } | |
| 3141 | |
| 3142 DEFUN ("get-largest-window", Fget_largest_window, 0, 2, 0, /* | |
| 3143 Return the window largest in area. | |
| 444 | 3144 |
| 3145 By default, only the windows in the selected frame are considered. | |
| 3146 The optional argument WHICH-FRAMES changes this behavior: | |
| 3147 If optional argument WHICH-FRAMES is `visible', search all visible frames. | |
| 3148 If WHICH-FRAMES is 0, search all visible and iconified frames. | |
| 3149 If WHICH-FRAMES is t, search all frames. | |
| 3150 If WHICH-FRAMES is nil, search only the selected frame. | |
| 3151 If WHICH-FRAMES is a frame, search only that frame. | |
| 3152 | |
| 3153 The optional argument WHICH-DEVICES further clarifies on which devices | |
| 3154 to search for frames as specified by WHICH-FRAMES. This value is only | |
| 3155 meaningful if WHICH-FRAMES is non-nil. | |
| 3156 If nil or omitted, search all devices on the selected console. | |
| 3157 If a device, only search that device. | |
| 3158 If a console, search all devices on that console. | |
| 3159 If a device type, search all devices of that type. | |
| 3160 If `window-system', search all devices on window-system consoles. | |
| 3161 Any other non-nil value means search all devices. | |
| 428 | 3162 */ |
| 444 | 3163 (which_frames, which_devices)) |
| 428 | 3164 { |
| 3165 /* Don't search dedicated windows because FSFmacs doesn't. | |
| 3166 This stuff is all black magic so don't try to apply common | |
| 3167 sense to it. */ | |
| 444 | 3168 return window_loop (GET_LARGEST_WINDOW, Qnil, 0, |
| 3169 which_frames, 0, which_devices); | |
| 428 | 3170 } |
| 3171 | |
| 3172 DEFUN ("get-buffer-window", Fget_buffer_window, 1, 3, 0, /* | |
| 3173 Return a window currently displaying BUFFER, or nil if none. | |
| 444 | 3174 |
| 3175 By default, only the windows in the selected frame are considered. | |
| 3176 The optional argument WHICH-FRAMES changes this behavior: | |
| 3177 If optional argument WHICH-FRAMES is `visible', search all visible frames. | |
| 3178 If WHICH-FRAMES is 0, search all visible and iconified frames. | |
| 3179 If WHICH-FRAMES is t, search all frames. | |
| 3180 If WHICH-FRAMES is nil, search only the selected frame. | |
| 3181 If WHICH-FRAMES is a frame, search only that frame. | |
| 3182 | |
| 3183 The optional argument WHICH-DEVICES further clarifies on which devices | |
| 3184 to search for frames as specified by WHICH-FRAMES. This value is only | |
| 3185 meaningful if WHICH-FRAMES is non-nil. | |
| 3186 If nil or omitted, search all devices on the selected console. | |
| 3187 If a device, only search that device. | |
| 3188 If a console, search all devices on that console. | |
| 3189 If a device type, search all devices of that type. | |
| 3190 If `window-system', search all devices on window-system consoles. | |
| 3191 Any other non-nil value means search all devices. | |
| 428 | 3192 */ |
| 444 | 3193 (buffer, which_frames, which_devices)) |
| 428 | 3194 { |
| 3195 buffer = Fget_buffer (buffer); | |
| 3196 if (BUFFERP (buffer)) | |
| 3197 /* Search dedicated windows too. (Doesn't matter here anyway.) */ | |
| 444 | 3198 return window_loop (GET_BUFFER_WINDOW, buffer, 1, |
| 3199 which_frames, 1, which_devices); | |
| 428 | 3200 else |
| 3201 return Qnil; | |
| 3202 } | |
| 3203 | |
| 3204 /* These functions used to be `buffer-left-margin-pixel-width', etc. | |
| 3205 but there is no sensible way to implement those functions, since | |
| 3206 you can't in general derive a window from a buffer. */ | |
| 3207 | |
| 3208 DEFUN ("window-left-margin-pixel-width", Fwindow_left_margin_pixel_width, | |
| 3209 0, 1, 0, /* | |
| 3210 Return the width in pixels of the left outside margin of window WINDOW. | |
| 3211 If WINDOW is nil, the selected window is assumed. | |
| 3212 */ | |
| 3213 (window)) | |
| 3214 { | |
| 3215 return make_int (window_left_margin_width (decode_window (window))); | |
| 3216 } | |
| 3217 | |
| 3218 DEFUN ("window-right-margin-pixel-width", Fwindow_right_margin_pixel_width, | |
| 3219 0, 1, 0, /* | |
| 3220 Return the width in pixels of the right outside margin of window WINDOW. | |
| 3221 If WINDOW is nil, the selected window is assumed. | |
| 3222 */ | |
| 3223 (window)) | |
| 3224 { | |
| 3225 return make_int (window_right_margin_width (decode_window (window))); | |
| 3226 } | |
| 3227 | |
| 3228 DEFUN ("delete-other-windows", Fdelete_other_windows, 0, 1, "", /* | |
| 3229 Make WINDOW (or the selected window) fill its frame. | |
| 3230 Only the frame WINDOW is on is affected. | |
| 3231 This function tries to reduce display jumps | |
| 3232 by keeping the text previously visible in WINDOW | |
| 3233 in the same place on the frame. Doing this depends on | |
| 3234 the value of (window-start WINDOW), so if calling this function | |
| 3235 in a program gives strange scrolling, make sure the window-start | |
| 3236 value is reasonable when this function is called. | |
| 3237 */ | |
| 3238 (window)) | |
| 3239 { | |
| 3240 struct window *w = decode_window (window); | |
| 1207 | 3241 struct buffer *b; |
| 665 | 3242 Charbpos start_pos; |
| 428 | 3243 int old_top = WINDOW_TOP (w); |
| 3244 | |
| 1207 | 3245 if (NILP (WINDOW_BUFFER (w))) |
| 3246 invalid_operation ("Can't delete other windows of combination", window); | |
| 3247 | |
| 793 | 3248 window = wrap_window (w); |
| 1207 | 3249 b = XBUFFER (WINDOW_BUFFER (w)); |
| 428 | 3250 |
| 3251 if (MINI_WINDOW_P (w) && old_top > 0) | |
| 563 | 3252 invalid_operation ("Can't expand minibuffer to full frame", Qunbound); |
| 428 | 3253 |
| 3254 /* Ignore dedicated windows. */ | |
| 3255 window_loop (DELETE_OTHER_WINDOWS, window, 0, w->frame, 0, Qnil); | |
| 3256 | |
| 3257 start_pos = marker_position (w->start[CURRENT_DISP]); | |
| 3258 | |
| 3259 /* Try to minimize scrolling, by setting the window start to the | |
| 3260 point which will cause the text at the old window start to be at | |
| 3261 the same place on the frame. But don't try to do this if the | |
| 3262 window start is outside the visible portion (as might happen when | |
| 3263 the display is not current, due to typeahead). */ | |
| 3264 if (start_pos >= BUF_BEGV (b) && start_pos <= BUF_ZV (b) | |
| 3265 && !MINI_WINDOW_P (w)) | |
| 3266 { | |
| 665 | 3267 Charbpos new_start = start_with_line_at_pixpos (w, start_pos, old_top); |
| 428 | 3268 |
| 3269 if (new_start >= BUF_BEGV (b) && new_start <= BUF_ZV (b)) | |
| 3270 { | |
| 3271 Fset_marker (w->start[CURRENT_DISP], make_int (new_start), | |
| 3272 w->buffer); | |
| 3273 w->start_at_line_beg = beginning_of_line_p (b, new_start); | |
| 3274 } | |
| 3275 /* We need to do this, so that the window-scroll-functions | |
| 3276 get called. */ | |
| 3277 w->force_start = 1; | |
| 3278 } | |
| 3279 | |
| 3280 return Qnil; | |
| 3281 } | |
| 3282 | |
| 3283 DEFUN ("delete-windows-on", Fdelete_windows_on, 1, 3, | |
| 3284 "bDelete windows on (buffer): ", /* | |
| 3285 Delete all windows showing BUFFER. | |
| 444 | 3286 |
| 3287 Optional second argument WHICH-FRAMES controls which frames are affected. | |
| 428 | 3288 If nil or omitted, delete all windows showing BUFFER in any frame. |
| 3289 If t, delete only windows showing BUFFER in the selected frame. | |
| 3290 If `visible', delete all windows showing BUFFER in any visible frame. | |
| 3291 If a frame, delete only windows showing BUFFER in that frame. | |
| 444 | 3292 Warning: WHICH-FRAMES has the same meaning as with `next-window', |
| 3293 except that the meanings of nil and t are reversed. | |
| 3294 | |
| 3295 The optional third argument WHICH-DEVICES further clarifies on which | |
| 3296 devices to search for frames as specified by WHICH-FRAMES. This value | |
| 3297 is only meaningful if WHICH-FRAMES is not t. | |
| 3298 If nil or omitted, search only the selected console. | |
| 3299 If a device, only search that device. | |
| 3300 If a console, search all devices on that console. | |
| 3301 If a device type, search all devices of that type. | |
| 3302 If `window-system', search all devices on a window system. | |
| 3303 Any other non-nil value means search all devices. | |
| 428 | 3304 */ |
| 444 | 3305 (buffer, which_frames, which_devices)) |
| 428 | 3306 { |
| 3307 /* This function can GC */ | |
| 444 | 3308 buffer = Fget_buffer (buffer); |
| 3309 CHECK_BUFFER (buffer); | |
| 3310 | |
| 3311 /* WHICH-FRAMES values t and nil mean the opposite of what | |
| 3312 window_loop expects. */ | |
| 3313 if (EQ (which_frames, Qnil)) | |
| 3314 which_frames = Qt; | |
| 3315 else if (EQ (which_frames, Qt)) | |
| 3316 which_frames = Qnil; | |
| 3317 | |
| 3318 /* Ignore dedicated windows. */ | |
| 3319 window_loop (DELETE_BUFFER_WINDOWS, buffer, 0, | |
| 3320 which_frames, 0, which_devices); | |
| 428 | 3321 return Qnil; |
| 3322 } | |
| 3323 | |
| 448 | 3324 static Lisp_Object |
| 3325 list_windows (struct window *w, Lisp_Object value) | |
| 3326 { | |
| 3327 for (;;) | |
| 3328 { | |
| 3329 if (!NILP (w->hchild)) | |
| 3330 value = list_windows (XWINDOW (w->hchild), value); | |
| 3331 else if (!NILP (w->vchild)) | |
| 3332 value = list_windows (XWINDOW (w->vchild), value); | |
| 3333 else | |
| 3334 { | |
| 793 | 3335 Lisp_Object window = wrap_window (w); |
| 3336 | |
| 448 | 3337 value = Fcons (window, value); |
| 3338 } | |
| 3339 if (NILP (w->next)) | |
| 3340 break; | |
| 3341 w = XWINDOW (w->next); | |
| 3342 } | |
| 3343 return value; | |
| 3344 } | |
| 3345 | |
| 3346 static Lisp_Object | |
| 3347 list_all_windows (Lisp_Object frame_spec, Lisp_Object device_spec) | |
| 3348 { | |
| 3349 Lisp_Object devcons, concons; | |
| 3350 Lisp_Object retval = Qnil; | |
| 3351 | |
| 3352 DEVICE_LOOP_NO_BREAK (devcons, concons) | |
| 3353 { | |
| 3354 Lisp_Object frame_list, the_window; | |
| 3355 Lisp_Object device, tail; | |
| 3356 | |
| 3357 device = XCAR (devcons); | |
| 3358 frame_list = DEVICE_FRAME_LIST (XDEVICE (device)); | |
| 3359 | |
| 3360 LIST_LOOP (tail, frame_list) | |
| 3361 { | |
| 3362 if ((NILP (frame_spec) | |
| 3363 && !EQ (XCAR (tail), DEVICE_SELECTED_FRAME (XDEVICE (device)))) | |
| 3364 || (EQ (frame_spec, Qvisible) | |
| 3365 && !FRAME_VISIBLE_P (XFRAME (XCAR (tail)))) | |
| 3366 || (FRAMEP (frame_spec) | |
| 3367 && !EQ (frame_spec, XCAR (tail))) | |
| 3368 || (!NILP (frame_spec) | |
| 3369 && !device_matches_device_spec (device, | |
| 3370 NILP (device_spec) ? | |
| 3371 Vselected_console : | |
| 3372 device_spec))) | |
| 3373 continue; | |
| 3374 the_window = FRAME_ROOT_WINDOW (XFRAME (XCAR (tail))); | |
| 3375 retval = list_windows (XWINDOW (the_window), retval); | |
| 3376 } | |
| 3377 } | |
| 3378 return Fnreverse (retval); | |
| 3379 } | |
| 3380 | |
| 444 | 3381 DEFUN ("replace-buffer-in-windows", Freplace_buffer_in_windows, 1, 3, |
| 428 | 3382 "bReplace buffer in windows: ", /* |
| 3383 Replace BUFFER with some other buffer in all windows showing it. | |
| 444 | 3384 |
| 3385 Optional second argument WHICH-FRAMES controls which frames are affected. | |
| 3386 If nil or omitted, all frames are affected. | |
| 3387 If t, only the selected frame is affected. | |
| 3388 If `visible', all visible frames are affected. | |
| 3389 If a frame, only that frame is affected. | |
| 3390 Warning: WHICH-FRAMES has the same meaning as with `next-window', | |
| 3391 except that the meanings of nil and t are reversed. | |
| 3392 | |
| 3393 The optional third argument WHICH-DEVICES further clarifies on which | |
| 3394 devices to search for frames as specified by WHICH-FRAMES. This value | |
| 3395 is only meaningful if WHICH-FRAMES is not t. | |
| 3396 If nil or omitted, search only the selected console. | |
| 3397 If a device, only search that device. | |
| 3398 If a console, search all devices on that console. | |
| 3399 If a device type, search all devices of that type. | |
| 3400 If `window-system', search all devices on a window system. | |
| 3401 Any other non-nil value means search all devices. | |
| 428 | 3402 */ |
| 444 | 3403 (buffer, which_frames, which_devices)) |
| 428 | 3404 { |
| 3405 /* This function can GC */ | |
| 448 | 3406 Lisp_Object window_list; |
| 3407 Lisp_Object tail; | |
| 3408 struct gcpro gcpro1, gcpro2; | |
| 3409 | |
| 444 | 3410 if (EQ (which_frames, Qnil)) |
| 3411 which_frames = Qt; | |
| 3412 else if (EQ (which_frames, Qt)) | |
| 3413 which_frames = Qnil; | |
| 448 | 3414 window_list = list_all_windows (which_frames, which_devices); |
| 3415 | |
| 3416 buffer = Fget_buffer (buffer); | |
| 3417 CHECK_BUFFER (buffer); | |
| 3418 | |
| 3419 GCPRO2 (window_list, buffer); | |
| 3420 LIST_LOOP (tail, window_list) | |
| 3421 { | |
| 3422 Lisp_Object window = XCAR (tail); | |
| 3423 if (!MINI_WINDOW_P (XWINDOW (window)) | |
| 3424 && EQ (XWINDOW (window)->buffer, buffer)) | |
| 3425 { | |
| 3426 Lisp_Object another_buffer = Fother_buffer (buffer, Qnil, Qnil); | |
| 3427 Lisp_Object frame = WINDOW_FRAME (XWINDOW (window)); | |
| 3428 if (NILP (another_buffer)) | |
| 3429 another_buffer = Fget_buffer_create (QSscratch); | |
| 3430 if (!NILP (XWINDOW (window)->dedicated) | |
| 3431 && EQ (window, | |
| 3432 FRAME_ROOT_WINDOW (XFRAME (frame))) | |
| 1979 | 3433 && (allow_deletion_of_last_visible_frame |
| 3434 || other_visible_frames (XFRAME (frame)))) | |
| 448 | 3435 { |
| 3436 delete_frame_internal (XFRAME (frame), 0, 0, 0); /* GC */ | |
| 3437 } | |
| 3438 else | |
| 3439 { | |
| 3440 Fset_window_buffer (window, another_buffer, Qnil); | |
| 3441 if (EQ (window, Fselected_window (Qnil))) | |
| 3442 Fset_buffer (XWINDOW (window)->buffer); | |
| 3443 } | |
| 3444 } | |
| 3445 } | |
| 3446 UNGCPRO; | |
| 428 | 3447 return Qnil; |
| 3448 } | |
| 3449 | |
| 3450 /* The smallest acceptable dimensions for a window. Anything smaller | |
| 3451 might crash Emacs. */ | |
| 3452 #define MIN_SAFE_WINDOW_WIDTH (2) | |
| 3453 #define MIN_SAFE_WINDOW_HEIGHT (2) | |
| 3454 | |
| 3455 /* Make sure that window_min_height and window_min_width are | |
| 3456 not too small; if they are, set them to safe minima. */ | |
| 3457 | |
| 3458 static void | |
| 3459 check_min_window_sizes (void) | |
| 3460 { | |
| 3461 /* Smaller values might permit a crash. */ | |
| 3462 if (window_min_width < MIN_SAFE_WINDOW_WIDTH) | |
| 3463 window_min_width = MIN_SAFE_WINDOW_WIDTH; | |
| 3464 if (window_min_height < MIN_SAFE_WINDOW_HEIGHT) | |
| 3465 window_min_height = MIN_SAFE_WINDOW_HEIGHT; | |
| 3466 } | |
| 3467 | |
| 440 | 3468 static int |
| 3469 frame_min_height (struct frame *frame) | |
| 3470 { | |
| 3471 /* For height, we have to see whether the frame has a minibuffer, and | |
| 3472 whether it wants a modeline. */ | |
| 3473 return (FRAME_MINIBUF_ONLY_P (frame) ? MIN_SAFE_WINDOW_HEIGHT - 1 | |
| 3474 : (! FRAME_HAS_MINIBUF_P (frame)) ? MIN_SAFE_WINDOW_HEIGHT | |
| 3475 : 2 * MIN_SAFE_WINDOW_HEIGHT - 1); | |
| 3476 } | |
| 3477 | |
| 3478 /* Return non-zero if both frame sizes are less than or equal to | |
| 3479 minimal allowed values. ROWS and COLS are in characters */ | |
|
5047
07dcc7000bbf
put width before height consistently, fix a real bug found in the process
Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
3480 static int |
|
07dcc7000bbf
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Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
3481 frame_size_valid_p (struct frame *frame, int cols, int rows) |
| 440 | 3482 { |
| 3483 return (rows >= frame_min_height (frame) | |
| 3484 && cols >= MIN_SAFE_WINDOW_WIDTH); | |
| 3485 } | |
| 3486 | |
| 3487 /* Return non-zero if both frame sizes are less than or equal to | |
| 3488 minimal allowed values. WIDTH and HEIGHT are in pixels */ | |
| 3489 int | |
| 3490 frame_pixsize_valid_p (struct frame *frame, int width, int height) | |
| 3491 { | |
| 3492 int rows, cols; | |
| 5043 | 3493 pixel_to_char_size (frame, width, height, &cols, &rows); |
|
5047
07dcc7000bbf
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Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
3494 return frame_size_valid_p (frame, cols, rows); |
| 440 | 3495 } |
| 3496 | |
| 428 | 3497 /* If *ROWS or *COLS are too small a size for FRAME, set them to the |
| 3498 minimum allowable size. */ | |
| 3499 void | |
|
5047
07dcc7000bbf
put width before height consistently, fix a real bug found in the process
Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
3500 check_frame_size (struct frame *frame, int *cols, int *rows) |
| 428 | 3501 { |
| 440 | 3502 int min_height = frame_min_height (frame); |
| 5043 | 3503 int min_pixwidth, min_pixheight; |
| 3504 int min_geomwidth, min_geomheight; | |
| 3505 | |
| 3506 /* There is no char_to_frame_unit_size(). This can be done with | |
| 3507 frame_conversion_internal(), but that's currently static, and we can | |
| 3508 do it fine with two steps, as follows. */ | |
| 3509 char_to_pixel_size (frame, MIN_SAFE_WINDOW_WIDTH, min_height, | |
| 3510 &min_pixwidth, &min_pixheight); | |
| 3511 pixel_to_frame_unit_size (frame, min_pixwidth, min_pixheight, | |
| 3512 &min_geomwidth, &min_geomheight); | |
| 3513 if (*rows < min_geomheight) | |
| 3514 *rows = min_geomheight; | |
| 3515 if (*cols < min_geomwidth) | |
| 3516 *cols = min_geomwidth; | |
| 428 | 3517 } |
| 3518 | |
| 3519 /* Normally the window is deleted if it gets too small. | |
| 3520 nodelete nonzero means do not do this. | |
| 3521 (The caller should check later and do so if appropriate) */ | |
| 3522 static void | |
| 3523 set_window_pixsize (Lisp_Object window, int new_pixsize, int nodelete, | |
| 3524 int set_height) | |
| 3525 { | |
| 3526 struct window *w = XWINDOW (window); | |
| 3527 struct frame *f = XFRAME (w->frame); | |
| 3528 struct window *c; | |
| 3529 int old_pixsize = (set_height ? WINDOW_HEIGHT (w) : WINDOW_WIDTH (w)); | |
| 3530 Lisp_Object child, minor_kid, major_kid; | |
| 3531 int minsize; | |
| 3532 int line_size; | |
| 3533 int defheight, defwidth; | |
| 3534 | |
|
5047
07dcc7000bbf
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Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
3535 default_face_width_and_height (window, &defwidth, &defheight); |
| 428 | 3536 line_size = (set_height ? defheight : defwidth); |
| 3537 | |
| 3538 check_min_window_sizes (); | |
| 3539 | |
| 3540 minsize = (set_height ? window_min_height : window_min_width); | |
| 3541 minsize *= line_size; | |
| 3542 | |
| 3543 if (!nodelete | |
| 3544 && !TOP_LEVEL_WINDOW_P (w) | |
|
4375
74e0e1131e01
Update window-size computation.
Mike Sperber <sperber@deinprogramm.de>
parents:
3707
diff
changeset
|
3545 && (new_pixsize + window_modeline_height (w)) < minsize) |
| 428 | 3546 { |
| 3547 Fdelete_window (window, Qnil); | |
| 3548 return; | |
| 3549 } | |
| 3550 | |
| 3551 SET_LAST_MODIFIED (w, 0); | |
| 3552 SET_LAST_FACECHANGE (w); | |
| 3553 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f); /* multiple windows affected */ | |
| 3554 if (set_height) | |
| 3555 { | |
| 3556 WINDOW_HEIGHT (w) = new_pixsize; | |
| 3557 major_kid = w->vchild; | |
| 3558 minor_kid = w->hchild; | |
| 3559 } | |
| 3560 else | |
| 3561 { | |
| 3562 WINDOW_WIDTH (w) = new_pixsize; | |
| 3563 major_kid = w->hchild; | |
| 3564 minor_kid = w->vchild; | |
| 3565 } | |
| 3566 | |
| 3567 if (!NILP (minor_kid)) | |
| 3568 { | |
| 3569 for (child = minor_kid; !NILP (child); child = XWINDOW (child)->next) | |
| 3570 { | |
| 3571 if (set_height) | |
| 3572 WINDOW_TOP (XWINDOW (child)) = WINDOW_TOP (w); | |
| 3573 else | |
| 3574 WINDOW_LEFT (XWINDOW (child)) = WINDOW_LEFT (w); | |
| 3575 | |
| 3576 set_window_pixsize (child, new_pixsize, nodelete, set_height); | |
| 3577 } | |
| 3578 } | |
| 3579 else if (!NILP (major_kid)) | |
| 3580 { | |
| 3581 int last_pos, last_old_pos, pos, old_pos, first; | |
| 3582 int pixel_adj_left = new_pixsize - old_pixsize; | |
| 3583 int div_val = old_pixsize << 1; | |
| 3584 | |
| 3585 /* | |
| 3586 * Previously we bailed out here if there was no size change. | |
| 3587 * (pixel_adj_left == 0) But this broke toolbar updates. If a | |
| 3588 * toolbar appears or disappears, windows may not change size, | |
| 3589 * but their top and left coordinates need to be updated. | |
| 3590 * | |
| 3591 * So we don't bail until after the loop below. | |
| 3592 */ | |
| 3593 | |
| 3594 last_pos = first = (set_height ? WINDOW_TOP (w) : WINDOW_LEFT (w)); | |
| 3595 last_old_pos = 0; | |
| 3596 | |
| 3597 for (child = major_kid; !NILP (child); child = c->next) | |
| 3598 { | |
| 3599 c = XWINDOW (child); | |
| 3600 | |
| 3601 if (set_height) | |
| 3602 { | |
| 3603 old_pos = last_old_pos + WINDOW_HEIGHT (c); | |
| 3604 WINDOW_TOP (c) = last_pos; | |
| 3605 } | |
| 3606 else | |
| 3607 { | |
| 3608 old_pos = last_old_pos + WINDOW_WIDTH (c); | |
| 3609 WINDOW_LEFT (c) = last_pos; | |
| 3610 } | |
| 3611 | |
| 3612 pos = (((old_pos * new_pixsize) << 1) + old_pixsize) / div_val; | |
| 3613 /* All but the last window should have a height which is | |
| 3614 a multiple of the default line height. */ | |
| 3615 if (!NILP (c->next)) | |
|
4446
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
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diff
changeset
|
3616 { |
|
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Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
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diff
changeset
|
3617 /* |
|
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3618 * Round up when we're shrinking, down when we're growing |
|
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3619 * to make sure that pairs of grow / shrink meant to |
|
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3620 * cancel out actually do cancel out. |
|
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3621 */ |
|
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3622 if (pixel_adj_left < 0) |
|
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3623 pos = ((pos + line_size -1) / line_size) * line_size; |
|
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3624 else |
|
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3625 pos = (pos / line_size) * line_size; |
|
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3626 } |
| 428 | 3627 |
| 3628 /* Avoid confusion: don't delete child if it becomes too small */ | |
| 3629 set_window_pixsize (child, pos + first - last_pos, 1, set_height); | |
| 3630 | |
| 3631 last_pos = pos + first; | |
| 3632 last_old_pos = old_pos; | |
| 3633 } | |
| 3634 | |
| 3635 /* Sometimes we may get called with our old size. In that case | |
| 3636 we don't need to do anything else. */ | |
| 3637 if (!pixel_adj_left) | |
| 3638 return; | |
| 3639 | |
| 3640 /* Now delete any children that became too small. */ | |
| 3641 if (!nodelete) | |
| 3642 for (child = major_kid; !NILP (child); child = XWINDOW (child)->next) | |
| 3643 { | |
| 3644 if (set_height) | |
| 3645 set_window_pixheight (child, WINDOW_HEIGHT (XWINDOW (child)), 0); | |
| 3646 else | |
| 3647 set_window_pixwidth (child, WINDOW_WIDTH (XWINDOW (child)), 0); | |
| 3648 } | |
| 3649 } | |
| 3650 } | |
| 3651 | |
| 3652 /* Set the height of WINDOW and all its inferiors. */ | |
| 3653 void | |
| 3654 set_window_pixheight (Lisp_Object window, int new_pixheight, int nodelete) | |
| 3655 { | |
| 3656 set_window_pixsize (window, new_pixheight, nodelete, 1); | |
| 3657 } | |
| 3658 | |
| 3659 /* Recursively set width of WINDOW and its inferiors. */ | |
| 3660 void | |
| 3661 set_window_pixwidth (Lisp_Object window, int new_pixwidth, int nodelete) | |
| 3662 { | |
| 3663 set_window_pixsize (window, new_pixwidth, nodelete, 0); | |
| 3664 } | |
| 3665 | |
| 3666 | |
| 3667 static int window_select_count; | |
| 3668 | |
| 440 | 3669 DEFUN ("set-window-buffer", Fset_window_buffer, 2, 3, 0, /* |
| 428 | 3670 Make WINDOW display BUFFER as its contents. |
| 3671 BUFFER can be a buffer or buffer name. | |
| 440 | 3672 |
| 442 | 3673 With non-nil optional argument NORECORD, do not modify the |
| 440 | 3674 global or per-frame buffer ordering. |
| 428 | 3675 */ |
| 440 | 3676 (window, buffer, norecord)) |
| 428 | 3677 { |
| 3678 Lisp_Object tem; | |
| 3679 struct window *w = decode_window (window); | |
| 448 | 3680 int old_buffer_local_face_property = 0; |
| 428 | 3681 |
| 3682 buffer = Fget_buffer (buffer); | |
| 3683 CHECK_BUFFER (buffer); | |
| 3684 | |
| 3685 if (!BUFFER_LIVE_P (XBUFFER (buffer))) | |
| 563 | 3686 invalid_operation ("Attempt to display deleted buffer", Qunbound); |
| 428 | 3687 |
| 3688 tem = w->buffer; | |
| 3689 if (NILP (tem)) | |
| 563 | 3690 invalid_operation ("Window is deleted", Qunbound); |
| 428 | 3691 else if (EQ (tem, buffer)) |
| 3692 return Qnil; | |
| 3693 else if (! EQ (tem, Qt)) /* w->buffer is t when the window | |
| 3694 is first being set up. */ | |
| 3695 { | |
| 3696 if (!NILP (w->dedicated) && !EQ (tem, buffer)) | |
| 563 | 3697 signal_error (Qinvalid_operation, "Window is dedicated to buffer", tem); |
| 428 | 3698 |
| 448 | 3699 old_buffer_local_face_property = |
| 3700 XBUFFER (w->buffer)->buffer_local_face_property; | |
| 428 | 3701 unshow_buffer (w); |
| 3702 } | |
| 3703 | |
| 3704 w->buffer = buffer; | |
| 3705 w->window_end_pos[CURRENT_DISP] = 0; | |
| 3706 w->hscroll = 0; | |
| 3707 w->modeline_hscroll = 0; | |
| 844 | 3708 #if 0 /* pre point caches */ |
| 428 | 3709 Fset_marker (w->pointm[CURRENT_DISP], |
| 3710 make_int (BUF_PT (XBUFFER (buffer))), | |
| 3711 buffer); | |
| 3712 set_marker_restricted (w->start[CURRENT_DISP], | |
| 3713 make_int (XBUFFER (buffer)->last_window_start), | |
| 3714 buffer); | |
| 844 | 3715 #else |
| 3716 { | |
| 3717 Lisp_Object marker = Fgethash (buffer, w->saved_point_cache, Qnil); | |
| 3718 Lisp_Object newpoint = | |
| 3719 !NILP (marker) ? make_int (marker_position (marker)) : | |
| 3720 make_int (BUF_PT (XBUFFER (buffer))); | |
| 3721 /* Previously, we had in here set-window-point, which did one of the | |
| 3722 following two, but not both. However, that could result in pointm | |
| 3723 being in a different buffer from the window's buffer! Probably | |
| 3724 not a travesty since it always occurred when the window was | |
| 3725 selected, meaning its value of point was ignored in favor of the | |
| 3726 buffer's; but it tripped an assert() in unshow_buffer(). */ | |
| 3727 set_marker_restricted (w->pointm[CURRENT_DISP], newpoint, buffer); | |
| 3728 if (EQ (wrap_window (w), Fselected_window (Qnil))) | |
| 3729 Fgoto_char (newpoint, buffer); /* this will automatically clip to | |
| 3730 accessible */ | |
| 3731 marker = Fgethash (buffer, w->saved_last_window_start_cache, Qnil); | |
| 3732 set_marker_restricted (w->start[CURRENT_DISP], | |
| 3733 !NILP (marker) ? | |
| 3734 make_int (marker_position (marker)) : | |
| 3735 make_int (XBUFFER (buffer)->last_window_start), | |
| 3736 buffer); | |
| 3737 } | |
| 3738 #endif | |
| 3739 | |
| 428 | 3740 Fset_marker (w->sb_point, w->start[CURRENT_DISP], buffer); |
| 3741 /* set start_at_line_beg correctly. GE */ | |
| 844 | 3742 w->start_at_line_beg = |
| 3743 beginning_of_line_p (XBUFFER (buffer), | |
| 3744 marker_position (w->start[CURRENT_DISP])); | |
| 3745 w->force_start = 0; /* XEmacs fix */ | |
| 428 | 3746 SET_LAST_MODIFIED (w, 1); |
| 3747 SET_LAST_FACECHANGE (w); | |
| 3748 MARK_WINDOWS_CHANGED (w); | |
| 448 | 3749 { |
| 3750 int new_buffer_local_face_property = | |
| 3751 XBUFFER (w->buffer)->buffer_local_face_property; | |
| 3752 | |
| 3753 if (new_buffer_local_face_property | |
| 3754 || new_buffer_local_face_property != old_buffer_local_face_property) | |
| 3755 MARK_WINDOW_FACES_CHANGED (w); | |
| 3756 } | |
| 428 | 3757 recompute_all_cached_specifiers_in_window (w); |
| 3758 if (EQ (window, Fselected_window (Qnil))) | |
| 3759 { | |
| 440 | 3760 if (NILP (norecord)) |
| 3761 Frecord_buffer (buffer); | |
| 3762 | |
| 428 | 3763 Fset_buffer (buffer); |
| 3764 } | |
| 3765 return Qnil; | |
| 3766 } | |
| 3767 | |
| 3768 DEFUN ("select-window", Fselect_window, 1, 2, 0, /* | |
| 3769 Select WINDOW. Most editing will apply to WINDOW's buffer. | |
| 3770 The main editor command loop selects the buffer of the selected window | |
| 3771 before each command. | |
| 3772 | |
| 442 | 3773 With non-nil optional argument NORECORD, do not modify the |
| 428 | 3774 global or per-frame buffer ordering. |
| 3775 */ | |
| 3776 (window, norecord)) | |
| 3777 { | |
| 3778 struct window *w; | |
| 3779 Lisp_Object old_selected_window = Fselected_window (Qnil); | |
| 3780 | |
| 3781 CHECK_LIVE_WINDOW (window); | |
| 3782 w = XWINDOW (window); | |
| 3783 | |
| 3784 /* we have already caught dead-window errors */ | |
| 3785 if (!NILP (w->hchild) || !NILP (w->vchild)) | |
| 563 | 3786 invalid_operation ("Trying to select non-leaf window", Qunbound); |
| 428 | 3787 |
| 3788 w->use_time = make_int (++window_select_count); | |
| 442 | 3789 |
| 428 | 3790 if (EQ (window, old_selected_window)) |
| 3791 return window; | |
| 3792 | |
| 3793 /* deselect the old window, if it exists (it might not exist if | |
| 3794 the selected device has no frames, which occurs at startup) */ | |
| 3795 if (!NILP (old_selected_window)) | |
| 3796 { | |
| 3797 struct window *ow = XWINDOW (old_selected_window); | |
| 3798 | |
| 3799 Fset_marker (ow->pointm[CURRENT_DISP], | |
| 3800 make_int (BUF_PT (XBUFFER (ow->buffer))), | |
| 3801 ow->buffer); | |
| 3802 | |
| 3803 MARK_WINDOWS_CHANGED (ow); | |
| 3804 } | |
| 3805 | |
| 3806 /* now select the window's frame */ | |
| 3807 set_frame_selected_window (XFRAME (WINDOW_FRAME (w)), window); | |
| 3808 | |
| 3809 select_frame_1 (WINDOW_FRAME (w)); | |
| 3810 | |
| 3811 /* also select the window's buffer */ | |
| 3812 if (NILP (norecord)) | |
| 3813 Frecord_buffer (w->buffer); | |
| 3814 Fset_buffer (w->buffer); | |
| 3815 | |
| 3816 /* Go to the point recorded in the window. | |
| 3817 This is important when the buffer is in more | |
| 3818 than one window. It also matters when | |
| 3819 redisplay_window has altered point after scrolling, | |
| 3820 because it makes the change only in the window. */ | |
| 3821 { | |
| 665 | 3822 Charbpos new_point = marker_position (w->pointm[CURRENT_DISP]); |
| 428 | 3823 if (new_point < BUF_BEGV (current_buffer)) |
| 3824 new_point = BUF_BEGV (current_buffer); | |
| 3825 else if (new_point > BUF_ZV (current_buffer)) | |
| 3826 new_point = BUF_ZV (current_buffer); | |
| 3827 | |
| 3828 BUF_SET_PT (current_buffer, new_point); | |
| 3829 } | |
| 3830 | |
| 3831 MARK_WINDOWS_CHANGED (w); | |
| 3832 | |
| 3833 return window; | |
| 3834 } | |
| 3835 | |
| 3836 Lisp_Object | |
| 3837 display_buffer (Lisp_Object buffer, Lisp_Object not_this_window_p, | |
| 3838 Lisp_Object override_frame) | |
| 3839 { | |
| 3840 return call3 (Qdisplay_buffer, buffer, not_this_window_p, override_frame); | |
| 3841 } | |
| 3842 | |
| 3843 void | |
| 3844 temp_output_buffer_show (Lisp_Object buf, Lisp_Object same_frame) | |
| 3845 { | |
| 3846 /* This function can GC */ | |
| 3847 Lisp_Object window; | |
| 3848 struct window *w; | |
| 3849 struct buffer *b = XBUFFER (buf); | |
| 3850 | |
| 3851 BUF_SAVE_MODIFF (XBUFFER (buf)) = BUF_MODIFF (b); | |
| 3852 widen_buffer (b, 0); | |
| 3853 BUF_SET_PT (b, BUF_BEG (b)); | |
| 3854 | |
| 3855 if (!NILP (Vtemp_buffer_show_function)) | |
| 3856 call1 (Vtemp_buffer_show_function, buf); | |
| 3857 else | |
| 3858 { | |
| 3859 window = display_buffer (buf, Qnil, same_frame); | |
| 3860 | |
| 3861 if (!EQ (XWINDOW (window)->frame, Fselected_frame (Qnil))) | |
| 3862 Fmake_frame_visible (WINDOW_FRAME (XWINDOW (window))); | |
| 3863 | |
| 3864 Vminibuffer_scroll_window = window; | |
| 3865 w = XWINDOW (window); | |
| 3866 w->hscroll = 0; | |
| 3867 w->modeline_hscroll = 0; | |
| 3868 set_marker_restricted (w->start[CURRENT_DISP], make_int (1), buf); | |
| 3869 set_marker_restricted (w->pointm[CURRENT_DISP], make_int (1), buf); | |
| 3870 set_marker_restricted (w->sb_point, make_int (1), buf); | |
| 3871 } | |
| 3872 } | |
| 3873 | |
| 3874 static void | |
| 3875 make_dummy_parent (Lisp_Object window) | |
| 3876 { | |
| 3025 | 3877 Lisp_Object new_; |
| 428 | 3878 struct window *o = XWINDOW (window); |
| 3017 | 3879 struct window *p = ALLOC_LCRECORD_TYPE (struct window, &lrecord_window); |
| 428 | 3880 |
| 3025 | 3881 new_ = wrap_window (p); |
| 3017 | 3882 COPY_LCRECORD (p, o); |
| 428 | 3883 |
| 3884 /* Don't copy the pointers to the line start cache or the face | |
| 3885 instances. */ | |
| 3886 p->line_start_cache = Dynarr_new (line_start_cache); | |
| 3092 | 3887 #ifdef NEW_GC |
| 3888 p->face_cachels = Dynarr_lisp_new (face_cachel, | |
| 3889 &lrecord_face_cachel_dynarr, | |
| 3890 &lrecord_face_cachel); | |
| 3891 p->glyph_cachels = Dynarr_lisp_new (glyph_cachel, | |
| 3892 &lrecord_glyph_cachel_dynarr, | |
| 3893 &lrecord_glyph_cachel); | |
| 3894 #else /* not NEW_GC */ | |
| 428 | 3895 p->face_cachels = Dynarr_new (face_cachel); |
| 3896 p->glyph_cachels = Dynarr_new (glyph_cachel); | |
| 3092 | 3897 #endif /* not NEW_GC */ |
| 442 | 3898 p->subwindow_instance_cache = |
| 450 | 3899 make_image_instance_cache_hash_table (); |
| 428 | 3900 |
| 3901 /* Put new into window structure in place of window */ | |
| 3025 | 3902 replace_window (window, new_); |
| 428 | 3903 |
| 3904 o->next = Qnil; | |
| 3905 o->prev = Qnil; | |
| 3906 o->vchild = Qnil; | |
| 3907 o->hchild = Qnil; | |
| 3025 | 3908 o->parent = new_; |
| 428 | 3909 |
| 3910 p->start[CURRENT_DISP] = Qnil; | |
| 3911 p->start[DESIRED_DISP] = Qnil; | |
| 3912 p->start[CMOTION_DISP] = Qnil; | |
| 3913 p->pointm[CURRENT_DISP] = Qnil; | |
| 3914 p->pointm[DESIRED_DISP] = Qnil; | |
| 3915 p->pointm[CMOTION_DISP] = Qnil; | |
| 3916 p->sb_point = Qnil; | |
| 844 | 3917 p->saved_point_cache = make_saved_buffer_point_cache (); |
| 3918 p->saved_last_window_start_cache = make_saved_buffer_point_cache (); | |
| 428 | 3919 p->buffer = Qnil; |
| 3920 } | |
| 3921 | |
| 3922 DEFUN ("split-window", Fsplit_window, 0, 3, "", /* | |
| 3923 Split WINDOW, putting SIZE lines in the first of the pair. | |
| 444 | 3924 WINDOW defaults to the selected one and SIZE to half its size. |
| 707 | 3925 If optional third arg HORFLAG is non-nil, split side by side and put |
| 3926 SIZE columns in the first of the pair. The newly created window is | |
| 3927 returned. | |
| 428 | 3928 */ |
| 444 | 3929 (window, size, horflag)) |
| 428 | 3930 { |
| 3025 | 3931 Lisp_Object new_; |
| 428 | 3932 struct window *o, *p; |
| 3933 struct frame *f; | |
| 444 | 3934 int csize; |
| 428 | 3935 int psize; |
| 3936 | |
| 3937 if (NILP (window)) | |
| 3938 window = Fselected_window (Qnil); | |
| 3939 else | |
| 3940 CHECK_LIVE_WINDOW (window); | |
| 3941 | |
| 3942 o = XWINDOW (window); | |
| 3943 f = XFRAME (WINDOW_FRAME (o)); | |
| 3944 | |
| 444 | 3945 if (NILP (size)) |
| 428 | 3946 { |
| 3947 if (!NILP (horflag)) | |
| 3948 /* In the new scheme, we are symmetric with respect to separators | |
| 3949 so there is no need to do weird things here. */ | |
| 3950 { | |
| 956 | 3951 psize = (WINDOW_WIDTH (o) + window_divider_width (o)) >> 1; |
| 444 | 3952 csize = window_pixel_width_to_char_width (o, psize, 0); |
| 428 | 3953 } |
| 3954 else | |
| 3955 { | |
| 3956 psize = WINDOW_HEIGHT (o) >> 1; | |
| 444 | 3957 csize = window_pixel_height_to_char_height (o, psize, 1); |
| 428 | 3958 } |
| 3959 } | |
| 3960 else | |
| 3961 { | |
| 444 | 3962 CHECK_INT (size); |
| 3963 csize = XINT (size); | |
| 428 | 3964 if (!NILP (horflag)) |
| 444 | 3965 psize = window_char_width_to_pixel_width (o, csize, 0); |
| 428 | 3966 else |
| 444 | 3967 psize = window_char_height_to_pixel_height (o, csize, 1); |
| 428 | 3968 } |
| 3969 | |
| 3970 if (MINI_WINDOW_P (o)) | |
| 563 | 3971 invalid_operation ("Attempt to split minibuffer window", Qunbound); |
| 428 | 3972 else if (FRAME_NO_SPLIT_P (XFRAME (WINDOW_FRAME (o)))) |
| 563 | 3973 invalid_operation ("Attempt to split unsplittable frame", Qunbound); |
| 428 | 3974 |
| 3975 check_min_window_sizes (); | |
| 3976 | |
| 3977 if (NILP (horflag)) | |
| 3978 { | |
| 444 | 3979 if (csize < window_min_height) |
| 563 | 3980 signal_error (Qinvalid_operation, "Window height too small (after splitting)", make_int (csize)); |
| 444 | 3981 if (csize + window_min_height > window_char_height (o, 1)) |
| 563 | 3982 signal_error (Qinvalid_operation, "Window height too small (after splitting)", |
| 3983 make_int (window_char_height (o, 1) - csize)); | |
| 428 | 3984 if (NILP (o->parent) |
| 3985 || NILP (XWINDOW (o->parent)->vchild)) | |
| 3986 { | |
| 3987 make_dummy_parent (window); | |
| 448 | 3988 #if 0 |
| 3989 /* #### I can't understand why you have to reset face | |
| 3990 cachels here. This can cause crash so let's disable it | |
| 3991 and see the difference. See redisplay-tests.el --yh */ | |
| 428 | 3992 reset_face_cachels (XWINDOW (window)); |
| 448 | 3993 #endif |
| 3025 | 3994 new_ = o->parent; |
| 3995 XWINDOW (new_)->vchild = window; | |
| 428 | 3996 XFRAME (o->frame)->mirror_dirty = 1; |
| 3997 } | |
| 3998 } | |
| 3999 else | |
| 4000 { | |
| 444 | 4001 if (csize < window_min_width) |
| 563 | 4002 signal_error (Qinvalid_operation, "Window width too small (after splitting)", make_int (csize)); |
| 444 | 4003 if (csize + window_min_width > window_char_width (o, 0)) |
| 563 | 4004 signal_error (Qinvalid_operation, "Window width too small (after splitting)", |
| 4005 make_int (window_char_width (o, 0) - csize)); | |
| 428 | 4006 if (NILP (o->parent) |
| 4007 || NILP (XWINDOW (o->parent)->hchild)) | |
| 4008 { | |
| 4009 make_dummy_parent (window); | |
| 448 | 4010 #if 0 |
| 4011 /* #### See above. */ | |
| 428 | 4012 reset_face_cachels (XWINDOW (window)); |
| 448 | 4013 #endif |
| 3025 | 4014 new_ = o->parent; |
| 4015 XWINDOW (new_)->hchild = window; | |
| 428 | 4016 XFRAME (o->frame)->mirror_dirty = 1; |
| 4017 } | |
| 4018 } | |
| 4019 | |
| 4020 /* Now we know that window's parent is a vertical combination | |
| 4021 if we are dividing vertically, or a horizontal combination | |
| 4022 if we are making side-by-side windows */ | |
| 4023 | |
| 4024 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f); | |
| 3025 | 4025 new_ = allocate_window (); |
| 4026 p = XWINDOW (new_); | |
| 428 | 4027 |
| 4028 p->frame = o->frame; | |
| 4029 p->next = o->next; | |
| 4030 if (!NILP (p->next)) | |
| 3025 | 4031 XWINDOW (p->next)->prev = new_; |
| 428 | 4032 p->prev = window; |
| 3025 | 4033 o->next = new_; |
| 428 | 4034 p->parent = o->parent; |
| 4035 p->buffer = Qt; | |
| 4036 | |
| 4037 reset_face_cachels (p); | |
| 4038 reset_glyph_cachels (p); | |
| 4039 | |
| 4040 | |
| 4041 /* Apportion the available frame space among the two new windows */ | |
| 4042 | |
| 4043 if (!NILP (horflag)) | |
| 4044 { | |
| 4045 WINDOW_HEIGHT (p) = WINDOW_HEIGHT (o); | |
| 4046 WINDOW_TOP (p) = WINDOW_TOP (o); | |
| 4047 WINDOW_WIDTH (p) = WINDOW_WIDTH (o) - psize; | |
| 4048 WINDOW_WIDTH (o) = psize; | |
| 4049 WINDOW_LEFT (p) = WINDOW_LEFT (o) + psize; | |
| 4050 } | |
| 4051 else | |
| 4052 { | |
| 4053 WINDOW_LEFT (p) = WINDOW_LEFT (o); | |
| 4054 WINDOW_WIDTH (p) = WINDOW_WIDTH (o); | |
| 4055 WINDOW_HEIGHT (p) = WINDOW_HEIGHT (o) - psize; | |
| 4056 WINDOW_HEIGHT (o) = psize; | |
| 4057 WINDOW_TOP (p) = WINDOW_TOP (o) + psize; | |
| 4058 } | |
| 4059 | |
| 4060 XFRAME (p->frame)->mirror_dirty = 1; | |
| 853 | 4061 |
| 3025 | 4062 note_object_created (new_); |
| 853 | 4063 |
| 428 | 4064 /* do this last (after the window is completely initialized and |
| 4065 the mirror-dirty flag is set) so that specifier recomputation | |
| 4066 caused as a result of this will work properly and not abort. */ | |
| 3025 | 4067 Fset_window_buffer (new_, o->buffer, Qt); |
| 4068 return new_; | |
| 428 | 4069 } |
| 4070 | |
| 4071 | |
| 4072 DEFUN ("enlarge-window", Fenlarge_window, 1, 3, "_p", /* | |
| 444 | 4073 Make the selected window COUNT lines taller. |
| 4074 From program, optional second arg HORIZONTALP non-nil means grow | |
| 4075 sideways COUNT columns, and optional third arg WINDOW specifies the | |
| 4076 window to change instead of the selected window. | |
| 428 | 4077 */ |
| 444 | 4078 (count, horizontalp, window)) |
| 4079 { | |
| 4080 CHECK_INT (count); | |
| 4081 change_window_height (window, XINT (count), horizontalp, /* inpixels */ 0); | |
| 428 | 4082 return Qnil; |
| 4083 } | |
| 4084 | |
| 4085 DEFUN ("enlarge-window-pixels", Fenlarge_window_pixels, 1, 3, "_p", /* | |
| 444 | 4086 Make the selected window COUNT pixels taller. |
| 4087 From program, optional second arg HORIZONTALP non-nil means grow | |
| 4088 sideways COUNT pixels, and optional third arg WINDOW specifies the | |
| 4089 window to change instead of the selected window. | |
| 428 | 4090 */ |
| 444 | 4091 (count, horizontalp, window)) |
| 4092 { | |
| 4093 CHECK_INT (count); | |
| 4094 change_window_height (window, XINT (count), horizontalp, /* inpixels */ 1); | |
| 428 | 4095 return Qnil; |
| 4096 } | |
| 4097 | |
| 4098 DEFUN ("shrink-window", Fshrink_window, 1, 3, "_p", /* | |
| 444 | 4099 Make the selected window COUNT lines shorter. |
| 4100 From program, optional second arg HORIZONTALP non-nil means shrink | |
| 4101 sideways COUNT columns, and optional third arg WINDOW specifies the | |
| 4102 window to change instead of the selected window. | |
| 428 | 4103 */ |
| 444 | 4104 (count, horizontalp, window)) |
| 4105 { | |
| 4106 CHECK_INT (count); | |
| 4107 change_window_height (window, -XINT (count), horizontalp, /* inpixels */ 0); | |
| 428 | 4108 return Qnil; |
| 4109 } | |
| 4110 | |
| 4111 DEFUN ("shrink-window-pixels", Fshrink_window_pixels, 1, 3, "_p", /* | |
| 444 | 4112 Make the selected window COUNT pixels smaller. |
| 4113 From program, optional second arg HORIZONTALP non-nil means shrink | |
| 4114 sideways COUNT pixels, and optional third arg WINDOW specifies the | |
| 4115 window to change instead of the selected window. | |
| 428 | 4116 */ |
| 444 | 4117 (count, horizontalp, window)) |
| 4118 { | |
| 4119 CHECK_INT (count); | |
| 4120 change_window_height (window, -XINT (count), horizontalp, /* inpixels */ 1); | |
| 428 | 4121 return Qnil; |
| 4122 } | |
| 4123 | |
| 4124 static int | |
| 4125 window_pixel_height_to_char_height (struct window *w, int pixel_height, | |
| 4126 int include_gutters_p) | |
| 4127 { | |
| 4128 int avail_height; | |
| 4129 int defheight, defwidth; | |
| 3687 | 4130 int char_height = 0; |
| 793 | 4131 Lisp_Object window = wrap_window (w); |
| 4132 | |
| 428 | 4133 |
| 4134 avail_height = (pixel_height - | |
| 4135 (include_gutters_p ? 0 : | |
| 442 | 4136 window_top_window_gutter_height (w) + |
| 4137 window_bottom_window_gutter_height (w))); | |
| 428 | 4138 |
|
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put width before height consistently, fix a real bug found in the process
Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
4139 default_face_width_and_height (window, &defwidth, &defheight); |
| 428 | 4140 |
| 3687 | 4141 if (defheight) |
| 4142 char_height = avail_height / defheight; | |
| 428 | 4143 |
| 4144 /* It's the calling function's responsibility to check these values | |
| 4145 and make sure they're not out of range. | |
| 4146 | |
| 4147 #### We need to go through the calling functions and actually | |
| 4148 do this. */ | |
| 4149 return max (0, char_height); | |
| 4150 } | |
| 4151 | |
| 4152 static int | |
| 4153 window_char_height_to_pixel_height (struct window *w, int char_height, | |
| 4154 int include_gutters_p) | |
| 4155 { | |
| 4156 int avail_height; | |
| 4157 int defheight, defwidth; | |
| 4158 int pixel_height; | |
| 4159 | |
| 793 | 4160 Lisp_Object window = wrap_window (w); |
| 4161 | |
| 428 | 4162 |
|
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put width before height consistently, fix a real bug found in the process
Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
4163 default_face_width_and_height (window, &defwidth, &defheight); |
| 428 | 4164 |
| 4165 avail_height = char_height * defheight; | |
| 4166 pixel_height = (avail_height + | |
| 4167 (include_gutters_p ? 0 : | |
| 442 | 4168 window_top_window_gutter_height (w) + |
| 4169 window_bottom_window_gutter_height (w))); | |
| 428 | 4170 |
| 4171 /* It's the calling function's responsibility to check these values | |
| 4172 and make sure they're not out of range. | |
| 4173 | |
| 4174 #### We need to go through the calling functions and actually | |
| 4175 do this. */ | |
| 4176 return max (0, pixel_height); | |
| 4177 } | |
| 4178 | |
| 4179 /* Return number of default lines of text can fit in the window W. | |
| 4180 If INCLUDE_GUTTERS_P is 1, include "gutter" space (modeline plus | |
| 4181 horizontal scrollbar) in the space that is used for the calculation. | |
| 442 | 4182 This doesn't include space used by the frame gutters. |
| 428 | 4183 */ |
| 4184 int | |
| 4185 window_char_height (struct window *w, int include_gutters_p) | |
| 4186 { | |
| 442 | 4187 return window_pixel_height_to_char_height (w, window_pixel_height (w), |
| 428 | 4188 include_gutters_p); |
| 4189 } | |
| 4190 | |
| 4191 /* | |
| 4192 * Return number of lines currently displayed in window w. If | |
| 4193 * end-of-buffer is displayed then the area below end-of-buffer is assume | |
| 4194 * to be blank lines of default height. | |
| 4195 * Does not include the modeline. | |
| 4196 */ | |
| 4197 int | |
| 4198 window_displayed_height (struct window *w) | |
| 4199 { | |
| 4200 struct buffer *b = XBUFFER (w->buffer); | |
| 4201 display_line_dynarr *dla = window_display_lines (w, CURRENT_DISP); | |
| 4202 int num_lines; | |
| 4203 Charcount end_pos = (BUF_Z (b) - w->window_end_pos[CURRENT_DISP] > BUF_ZV (b) | |
| 4204 ? -1 | |
| 4205 : w->window_end_pos[CURRENT_DISP]); | |
| 4206 | |
| 4207 if (!Dynarr_length (dla)) | |
| 4208 return window_char_height (w, 0); | |
| 4209 | |
| 4210 num_lines = Dynarr_length (dla); | |
| 4211 | |
| 4212 /* #### Document and assert somewhere that w->window_end_pos == -1 | |
| 4213 indicates that end-of-buffer is being displayed. */ | |
| 4214 if (end_pos == -1) | |
| 4215 { | |
| 4967 | 4216 struct display_line *dl = Dynarr_begin (dla); |
| 428 | 4217 int ypos1 = dl->ypos + dl->descent; |
| 4218 int ypos2 = WINDOW_TEXT_BOTTOM (w); | |
| 4219 Lisp_Object window; | |
| 4220 int defheight, defwidth; | |
| 4221 | |
| 793 | 4222 window = wrap_window (w); |
| 428 | 4223 |
| 4224 if (dl->modeline) | |
| 4225 { | |
| 4226 num_lines--; | |
| 4227 | |
| 4228 if (Dynarr_length (dla) == 1) | |
| 4229 ypos1 = WINDOW_TEXT_TOP (w); | |
| 4230 else | |
| 4231 { | |
| 4232 dl = Dynarr_atp (dla, Dynarr_length (dla) - 1); | |
| 4233 /* If this line is clipped then we know that there is no | |
| 4234 blank room between eob and the modeline. If we are | |
| 4235 scrolling on clipped lines just know off the clipped | |
| 4236 line and return .*/ | |
| 4237 if (scroll_on_clipped_lines && dl->clip) | |
| 4238 return num_lines - 1; | |
| 4239 ypos1 = dl->ypos + dl->descent - dl->clip; | |
| 4240 } | |
| 4241 } | |
| 4242 | |
|
5047
07dcc7000bbf
put width before height consistently, fix a real bug found in the process
Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
4243 default_face_width_and_height (window, &defwidth, &defheight); |
| 428 | 4244 /* #### This probably needs to know about the clipping area once a |
| 4245 final definition is decided on. */ | |
| 3707 | 4246 if (defheight) |
| 4247 num_lines += ((ypos2 - ypos1) / defheight); | |
| 428 | 4248 } |
| 4249 else | |
| 4250 { | |
| 4967 | 4251 if (num_lines > 1 && Dynarr_begin (dla)->modeline) |
| 428 | 4252 num_lines--; |
| 4253 | |
| 4254 if (scroll_on_clipped_lines | |
| 4255 && Dynarr_atp (dla, Dynarr_length (dla) - 1)->clip) | |
| 4256 num_lines--; | |
| 4257 } | |
| 4258 | |
| 4259 return num_lines; | |
| 4260 } | |
| 4261 | |
| 4262 static int | |
| 4263 window_pixel_width (Lisp_Object window) | |
| 4264 { | |
| 4265 return WINDOW_WIDTH (XWINDOW (window)); | |
| 4266 } | |
| 4267 | |
| 442 | 4268 /* Calculate the pixel of a window, optionally including margin space |
| 4269 but no vertical gutters. */ | |
| 428 | 4270 static int |
| 4271 window_pixel_width_to_char_width (struct window *w, int pixel_width, | |
| 4272 int include_margins_p) | |
| 4273 { | |
| 4274 int avail_width; | |
| 3676 | 4275 int char_width = 0; |
| 428 | 4276 int defheight, defwidth; |
| 793 | 4277 Lisp_Object window = wrap_window (w); |
| 4278 | |
| 428 | 4279 |
| 4280 avail_width = (pixel_width - | |
| 4281 window_left_gutter_width (w, 0) - | |
| 4282 window_right_gutter_width (w, 0) - | |
| 4283 (include_margins_p ? 0 : window_left_margin_width (w)) - | |
| 4284 (include_margins_p ? 0 : window_right_margin_width (w))); | |
| 4285 | |
|
5047
07dcc7000bbf
put width before height consistently, fix a real bug found in the process
Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
4286 default_face_width_and_height (window, &defwidth, &defheight); |
| 428 | 4287 |
| 3676 | 4288 if (defwidth) |
| 4289 char_width = (avail_width / defwidth); | |
| 428 | 4290 |
| 4291 /* It's the calling function's responsibility to check these values | |
| 4292 and make sure they're not out of range. | |
| 4293 | |
| 4294 #### We need to go through the calling functions and actually | |
| 4295 do this. */ | |
| 4296 return max (0, char_width); | |
| 4297 } | |
| 4298 | |
| 4299 static int | |
| 4300 window_char_width_to_pixel_width (struct window *w, int char_width, | |
| 4301 int include_margins_p) | |
| 4302 { | |
| 4303 int avail_width; | |
| 4304 int pixel_width; | |
| 4305 int defheight, defwidth; | |
| 793 | 4306 Lisp_Object window = wrap_window (w); |
| 4307 | |
| 428 | 4308 |
|
5047
07dcc7000bbf
put width before height consistently, fix a real bug found in the process
Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
4309 default_face_width_and_height (window, &defwidth, &defheight); |
| 428 | 4310 |
| 4311 avail_width = char_width * defwidth; | |
| 4312 pixel_width = (avail_width + | |
| 442 | 4313 window_left_window_gutter_width (w, 0) + |
| 4314 window_right_window_gutter_width (w, 0) + | |
| 428 | 4315 (include_margins_p ? 0 : window_left_margin_width (w)) + |
| 4316 (include_margins_p ? 0 : window_right_margin_width (w))); | |
| 4317 | |
| 4318 /* It's the calling function's responsibility to check these values | |
| 4319 and make sure they're not out of range. | |
| 4320 | |
| 4321 #### We need to go through the calling functions and actually | |
| 4322 do this. */ | |
| 4323 return max (0, pixel_width); | |
| 4324 } | |
| 4325 | |
| 4326 /* This returns the usable space which doesn't include space needed by | |
| 4327 scrollbars or divider lines. */ | |
| 4328 int | |
| 4329 window_char_width (struct window *w, int include_margins_p) | |
| 4330 { | |
| 4331 return window_pixel_width_to_char_width (w, WINDOW_WIDTH (w), | |
| 4332 include_margins_p); | |
| 4333 } | |
| 4334 | |
| 4335 #define MINSIZE(w) \ | |
| 4336 (widthflag \ | |
| 4337 ? window_min_width * defwidth \ | |
| 4338 : (defheight * (MINI_WINDOW_P (XWINDOW (w)) ? 1 : window_min_height))) | |
| 4339 | |
| 4340 #define CURBEG(w) \ | |
| 4341 *(widthflag ? (int *) &WINDOW_LEFT (w) : (int *) &WINDOW_TOP (w)) | |
| 4342 | |
| 4343 #define CURSIZE(w) \ | |
| 4344 *(widthflag ? (int *) &WINDOW_WIDTH (w) : (int *) &WINDOW_HEIGHT (w)) | |
| 4345 | |
| 4346 #define CURCHARSIZE(w) \ | |
| 4347 (widthflag ? window_char_width (w, 0) : window_char_height (w, 1)) | |
| 4348 | |
| 4349 #define MINCHARSIZE(window) \ | |
| 4350 (widthflag ? window_min_width : MINI_WINDOW_P (XWINDOW (window)) \ | |
| 4351 ? 1 : window_min_height) | |
| 4352 | |
| 442 | 4353 static int |
| 4354 window_pixheight (Lisp_Object w) | |
| 4355 { | |
| 4356 return window_pixel_height (XWINDOW (w)); | |
| 4357 } | |
| 4358 | |
| 428 | 4359 /* Unlike set_window_pixheight, this function |
| 4360 also changes the heights of the siblings so as to | |
| 4361 keep everything consistent. */ | |
| 4362 | |
| 4363 static void | |
| 444 | 4364 change_window_height (Lisp_Object window, int delta, Lisp_Object horizontalp, |
| 428 | 4365 int inpixels) |
| 4366 { | |
| 444 | 4367 struct window *win = decode_window (window); |
| 4368 int widthflag = !NILP (horizontalp); | |
| 428 | 4369 Lisp_Object parent; |
| 4370 struct window *w; | |
| 4371 struct frame *f; | |
| 4372 int *sizep; | |
| 4373 int (*sizefun) (Lisp_Object) = (widthflag | |
| 4374 ? window_pixel_width | |
| 442 | 4375 : window_pixheight); |
| 428 | 4376 void (*setsizefun) (Lisp_Object, int, int) = (widthflag |
| 4377 ? set_window_pixwidth | |
| 4378 : set_window_pixheight); | |
| 4379 int dim; | |
| 4380 int defheight, defwidth; | |
| 4381 | |
| 4382 if (delta == 0) | |
| 4383 return; | |
| 4384 | |
| 4385 check_min_window_sizes (); | |
| 4386 | |
| 793 | 4387 window = wrap_window (win); |
| 428 | 4388 f = XFRAME (win->frame); |
| 4389 if (EQ (window, FRAME_ROOT_WINDOW (f))) | |
| 563 | 4390 invalid_operation ("Won't change only window", Qunbound); |
| 428 | 4391 |
|
5047
07dcc7000bbf
put width before height consistently, fix a real bug found in the process
Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
4392 default_face_width_and_height (window, &defwidth, &defheight); |
| 428 | 4393 |
| 4394 while (1) | |
| 4395 { | |
| 4396 w = XWINDOW (window); | |
| 4397 parent = w->parent; | |
| 4398 if (NILP (parent)) | |
| 4399 { | |
| 4400 if (widthflag) | |
| 3078 | 4401 { |
| 4402 int new_pixsize; | |
| 4403 sizep = &CURSIZE (w); | |
| 3466 | 4404 dim = CURCHARSIZE (w); |
| 3078 | 4405 new_pixsize = inpixels?(*sizep + delta):(dim+delta); |
| 4406 set_window_pixsize (window, new_pixsize, 0, 0); | |
| 4407 return; | |
| 4408 } | |
| 428 | 4409 break; |
| 4410 } | |
| 4411 if (widthflag | |
| 4412 ? !NILP (XWINDOW (parent)->hchild) | |
| 4413 : !NILP (XWINDOW (parent)->vchild)) | |
| 4414 break; | |
| 4415 window = parent; | |
| 4416 } | |
| 4417 | |
| 4418 sizep = &CURSIZE (w); | |
| 4419 dim = CURCHARSIZE (w); | |
| 4420 | |
| 4421 if ((inpixels && (*sizep + delta) < MINSIZE (window)) || | |
| 4422 (!inpixels && (dim + delta) < MINCHARSIZE (window))) | |
| 4423 { | |
| 4424 if (MINI_WINDOW_P (XWINDOW (window))) | |
| 4425 return; | |
| 4426 else if (!NILP (parent)) | |
| 4427 { | |
| 4428 Fdelete_window (window, Qnil); | |
| 4429 return; | |
| 4430 } | |
| 4431 } | |
| 4432 | |
| 4433 if (!inpixels) | |
| 4434 delta *= (widthflag ? defwidth : defheight); | |
| 4435 | |
| 4436 { | |
| 4437 int maxdelta; | |
| 4438 | |
| 4439 maxdelta = ((!NILP (parent)) | |
| 4440 ? (*sizefun) (parent) - *sizep | |
| 4441 : ((!NILP (w->next)) | |
| 4442 ? (*sizefun) (w->next) - MINSIZE (w->next) | |
| 4443 : ((!NILP (w->prev)) | |
| 4444 ? (*sizefun) (w->prev) - MINSIZE (w->prev) | |
| 4445 /* This is a frame with only one window, | |
| 4446 a minibuffer-only or a minibufferless frame. */ | |
| 4447 : (delta = 0)))); | |
| 4448 | |
| 4449 if (delta > maxdelta) | |
| 4450 /* This case traps trying to make the minibuffer | |
| 4451 the full frame, or make the only window aside from the | |
| 4452 minibuffer the full frame. */ | |
| 4453 delta = maxdelta; | |
| 4454 | |
| 4455 if (delta == 0) | |
| 4456 return; | |
| 4457 | |
| 4458 #if 0 /* FSFmacs */ | |
| 4459 /* #### Chuck: is this correct? */ | |
| 4460 if (*sizep + delta < MINSIZE (window)) | |
| 4461 { | |
| 4462 Fdelete_window (window); | |
| 4463 return; | |
| 4464 } | |
| 4465 #endif | |
| 4466 } | |
| 4467 | |
| 4468 if (!NILP (w->next) && | |
| 4469 (*sizefun) (w->next) - delta >= (int) MINSIZE (w->next)) | |
| 4470 { | |
| 4471 CURBEG (XWINDOW (w->next)) += delta; | |
| 4472 (*setsizefun) (w->next, (*sizefun) (w->next) - delta, 0); | |
| 4473 (*setsizefun) (window, *sizep + delta, 0); | |
| 4474 } | |
| 4475 else if (!NILP (w->prev) && | |
| 4476 (*sizefun) (w->prev) - delta >= (int) MINSIZE (w->prev)) | |
| 4477 { | |
| 4478 (*setsizefun) (w->prev, (*sizefun) (w->prev) - delta, 0); | |
| 4479 CURBEG (w) -= delta; | |
| 4480 (*setsizefun) (window, *sizep + delta, 0); | |
| 4481 } | |
| 4482 else | |
| 4483 { | |
| 4484 int delta1; | |
| 4485 int opht = (*sizefun) (parent); | |
| 4486 | |
| 4487 /* If trying to grow this window to or beyond size of the parent, | |
| 4488 make delta1 so big that, on shrinking back down, | |
| 4489 all the siblings end up with less than one line and are deleted. */ | |
| 4490 if (opht <= *sizep + delta) | |
| 4491 delta1 = opht * opht * 2; | |
| 4492 /* Otherwise, make delta1 just right so that if we add delta1 | |
| 4493 lines to this window and to the parent, and then shrink | |
| 4494 the parent back to its original size, the new proportional | |
| 4495 size of this window will increase by delta. */ | |
| 4496 else | |
| 4497 delta1 = (delta * opht * 100) / ((opht - *sizep - delta) * 100); | |
| 4498 | |
| 4499 /* Add delta1 lines or columns to this window, and to the parent, | |
| 4500 keeping things consistent while not affecting siblings. */ | |
| 4501 CURSIZE (XWINDOW (parent)) = opht + delta1; | |
| 4502 (*setsizefun) (window, *sizep + delta1, 0); | |
| 4503 | |
| 4504 /* Squeeze out delta1 lines or columns from our parent, | |
| 4505 shrinking this window and siblings proportionately. | |
| 4506 This brings parent back to correct size. | |
| 4507 Delta1 was calculated so this makes this window the desired size, | |
| 4508 taking it all out of the siblings. */ | |
| 4509 (*setsizefun) (parent, opht, 0); | |
| 4510 } | |
| 4511 | |
| 4512 SET_LAST_MODIFIED (w, 0); | |
| 4513 SET_LAST_FACECHANGE (w); | |
| 4514 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f); | |
| 4515 /* overkill maybe, but better to be correct */ | |
| 4516 MARK_FRAME_GUTTERS_CHANGED (f); | |
| 4517 } | |
| 4518 #undef MINSIZE | |
| 4519 #undef CURBEG | |
| 4520 #undef CURSIZE | |
| 4521 #undef CURCHARSIZE | |
| 4522 #undef MINCHARSIZE | |
| 4523 | |
| 4524 | |
| 4525 | |
| 444 | 4526 /* Scroll contents of window WINDOW up COUNT lines. |
| 4527 If COUNT < (top line height / average line height) then we just adjust | |
| 4528 the top clip. */ | |
| 428 | 4529 void |
| 444 | 4530 window_scroll (Lisp_Object window, Lisp_Object count, int direction, |
| 578 | 4531 Error_Behavior errb) |
| 428 | 4532 { |
| 4533 struct window *w = XWINDOW (window); | |
| 4534 struct buffer *b = XBUFFER (w->buffer); | |
| 4535 int selected = EQ (window, Fselected_window (Qnil)); | |
| 4536 int value = 0; | |
| 4537 Lisp_Object point, tem; | |
| 4538 display_line_dynarr *dla; | |
| 4539 int fheight, fwidth, modeline = 0; | |
| 4540 struct display_line* dl; | |
| 4541 | |
| 4542 if (selected) | |
| 4543 point = make_int (BUF_PT (b)); | |
| 4544 else | |
| 4545 { | |
| 665 | 4546 Charbpos pos = marker_position (w->pointm[CURRENT_DISP]); |
| 428 | 4547 |
| 4548 if (pos < BUF_BEGV (b)) | |
| 4549 pos = BUF_BEGV (b); | |
| 4550 else if (pos > BUF_ZV (b)) | |
| 4551 pos = BUF_ZV (b); | |
| 4552 | |
| 4553 point = make_int (pos); | |
| 4554 } | |
| 4555 | |
| 4556 /* Always set force_start so that redisplay_window will run | |
| 4557 the window-scroll-functions. */ | |
| 4558 w->force_start = 1; | |
| 4559 | |
| 4560 /* #### When the fuck does this happen? I'm so glad that history has | |
| 4561 completely documented the behavior of the scrolling functions under | |
| 4562 all circumstances. */ | |
| 1708 | 4563 tem = Fpos_visible_in_window_p (point, window, Qnil); |
| 428 | 4564 if (NILP (tem)) |
| 4565 { | |
| 4566 Fvertical_motion (make_int (-window_char_height (w, 0) / 2), | |
| 4567 window, Qnil); | |
| 4568 Fset_marker (w->start[CURRENT_DISP], point, w->buffer); | |
| 4569 w->start_at_line_beg = beginning_of_line_p (b, XINT (point)); | |
| 4570 WINDOW_TEXT_TOP_CLIP (w) = 0; | |
| 4571 MARK_WINDOWS_CHANGED (w); | |
| 4572 } | |
| 4573 | |
| 444 | 4574 if (!NILP (count)) |
| 428 | 4575 { |
| 444 | 4576 if (EQ (count, Qminus)) |
| 428 | 4577 direction *= -1; |
| 4578 else | |
| 4579 { | |
| 444 | 4580 count = Fprefix_numeric_value (count); |
| 4581 value = XINT (count) * direction; | |
| 428 | 4582 |
| 4583 if (!value) | |
| 4584 return; /* someone just made a pointless call */ | |
| 4585 } | |
| 4586 } | |
| 4587 | |
| 4588 /* If the user didn't specify how far to scroll then we have to figure it | |
| 4589 out by ourselves. */ | |
| 444 | 4590 if (NILP (count) || EQ (count, Qminus)) |
| 428 | 4591 { |
| 4592 /* Going forwards is easy. If that is what we are doing then just | |
| 4593 set value and the section which handles the user specifying a | |
| 4594 positive value will work. */ | |
| 4595 if (direction == 1) | |
| 4596 { | |
| 4597 value = window_displayed_height (w) - next_screen_context_lines; | |
| 4598 value = (value < 1 ? 1 : value); | |
| 4599 } | |
| 4600 | |
| 4601 /* Going backwards is hard. We can't use the same loop used if the | |
| 4602 user specified a negative value because we care about | |
| 4603 next_screen_context_lines. In a variable height world you don't | |
| 4604 know how many lines above you can actually be displayed and still | |
| 4605 have the context lines appear. So we leave value set to 0 and add | |
| 4606 a separate section to deal with this. */ | |
| 4607 | |
| 4608 } | |
| 4609 | |
| 4610 if (direction == 1 && !value) | |
| 4611 { | |
| 4612 return; | |
| 4613 } | |
| 4614 | |
| 4615 /* Determine parameters to test for partial line scrolling with. */ | |
| 4616 dla = window_display_lines (w, CURRENT_DISP); | |
| 4617 | |
| 4618 if (INTP (Vwindow_pixel_scroll_increment)) | |
| 4619 fheight = XINT (Vwindow_pixel_scroll_increment); | |
| 440 | 4620 else if (!NILP (Vwindow_pixel_scroll_increment)) |
|
5047
07dcc7000bbf
put width before height consistently, fix a real bug found in the process
Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
4621 default_face_width_and_height (window, &fwidth, &fheight); |
| 438 | 4622 |
| 428 | 4623 if (Dynarr_length (dla) >= 1) |
| 4967 | 4624 modeline = Dynarr_begin (dla)->modeline; |
| 428 | 4625 |
| 4626 dl = Dynarr_atp (dla, modeline); | |
| 438 | 4627 |
| 428 | 4628 if (value > 0) |
| 4629 { | |
| 4630 /* Go for partial display line scrolling. This just means bumping | |
| 4631 the clip by a reasonable amount and redisplaying, everything else | |
| 4632 remains unchanged. */ | |
| 4633 if (!NILP (Vwindow_pixel_scroll_increment) | |
| 4634 && | |
| 4635 Dynarr_length (dla) >= (1 + modeline) | |
| 4636 && | |
| 458 | 4637 (dl->ascent - dl->top_clip) > fheight * value) |
| 428 | 4638 { |
| 4639 WINDOW_TEXT_TOP_CLIP (w) += value * fheight; | |
| 4640 MARK_WINDOWS_CHANGED (w); | |
| 4641 } | |
| 4642 else | |
| 4643 { | |
| 4644 int vtarget; | |
| 665 | 4645 Charbpos startp, old_start; |
| 438 | 4646 |
| 428 | 4647 if (WINDOW_TEXT_TOP_CLIP (w)) |
| 4648 { | |
| 4649 WINDOW_TEXT_TOP_CLIP (w) = 0; | |
| 4650 MARK_WINDOWS_CHANGED (w); | |
| 4651 } | |
| 4652 | |
| 4653 old_start = marker_position (w->start[CURRENT_DISP]); | |
| 4654 startp = vmotion (w, old_start, value, &vtarget); | |
| 438 | 4655 |
| 428 | 4656 if (vtarget < value && |
| 4657 (w->window_end_pos[CURRENT_DISP] == -1 | |
| 4658 || (BUF_Z (b) - w->window_end_pos[CURRENT_DISP] > BUF_ZV (b)))) | |
| 4659 { | |
| 563 | 4660 maybe_signal_error_1 (Qend_of_buffer, Qnil, Qwindow, errb); |
| 428 | 4661 return; |
| 4662 } | |
| 4663 else | |
| 4664 { | |
| 4665 set_marker_restricted (w->start[CURRENT_DISP], make_int (startp), | |
| 4666 w->buffer); | |
| 4667 w->force_start = 1; | |
| 4668 w->start_at_line_beg = beginning_of_line_p (b, startp); | |
| 4669 MARK_WINDOWS_CHANGED (w); | |
| 438 | 4670 |
| 1708 | 4671 if (!point_would_be_visible (w, startp, XINT (point), 0)) |
| 844 | 4672 Fset_window_point (wrap_window (w), make_int (startp)); |
| 428 | 4673 } |
| 4674 } | |
| 4675 } | |
| 4676 else if (value < 0) | |
| 4677 { | |
| 4678 /* Go for partial display line scrolling. This just means bumping | |
| 4679 the clip by a reasonable amount and redisplaying, everything else | |
| 4680 remains unchanged. */ | |
| 4681 if (!NILP (Vwindow_pixel_scroll_increment) | |
| 4682 && | |
| 4683 Dynarr_length (dla) >= (1 + modeline) | |
| 4684 && | |
| 4685 (dl->ascent - dl->top_clip) - fheight * value < | |
| 4686 (dl->ascent + dl->descent - dl->clip) | |
| 4687 && | |
| 4688 WINDOW_TEXT_TOP_CLIP (w) + value * fheight > 0) | |
| 4689 { | |
| 4690 WINDOW_TEXT_TOP_CLIP (w) += value * fheight; | |
| 4691 MARK_WINDOWS_CHANGED (w); | |
| 4692 } | |
| 4693 else | |
| 4694 { | |
| 4695 int vtarget; | |
| 665 | 4696 Charbpos startp, old_start; |
| 438 | 4697 |
| 428 | 4698 if (WINDOW_TEXT_TOP_CLIP (w)) |
| 4699 { | |
| 4700 WINDOW_TEXT_TOP_CLIP (w) = 0; | |
| 4701 MARK_WINDOWS_CHANGED (w); | |
| 4702 } | |
| 438 | 4703 |
| 428 | 4704 old_start = marker_position (w->start[CURRENT_DISP]); |
| 4705 startp = vmotion (w, old_start, value, &vtarget); | |
| 438 | 4706 |
| 428 | 4707 if (vtarget > value |
| 4708 && marker_position (w->start[CURRENT_DISP]) == BUF_BEGV (b)) | |
| 4709 { | |
| 563 | 4710 maybe_signal_error_1 (Qbeginning_of_buffer, Qnil, Qwindow, errb); |
| 428 | 4711 return; |
| 4712 } | |
| 4713 else | |
| 4714 { | |
| 4715 set_marker_restricted (w->start[CURRENT_DISP], make_int (startp), | |
| 4716 w->buffer); | |
| 4717 w->force_start = 1; | |
| 4718 w->start_at_line_beg = beginning_of_line_p (b, startp); | |
| 4719 MARK_WINDOWS_CHANGED (w); | |
| 438 | 4720 |
| 440 | 4721 /* #### Scroll back by less than a line. This code was |
| 4722 originally for scrolling over large pixmaps and it | |
| 4723 loses when a line being *exposed* at the top of the | |
| 4724 window is bigger than the current one. However, for | |
| 4725 pixel based scrolling in general we can guess that | |
| 4726 the line we are going to display is probably the same | |
| 4727 size as the one we are on. In that instance we can | |
| 4728 have a reasonable stab at a suitable top clip. Fixing | |
| 4729 this properly is hard (and probably slow) as we would | |
| 4730 have to call redisplay to figure out the exposed line | |
| 4731 size. */ | |
| 4732 if (!NILP (Vwindow_pixel_scroll_increment) | |
| 4733 && Dynarr_length (dla) >= (1 + modeline) | |
| 4734 && dl->ascent + fheight * value > 0) | |
| 4735 { | |
| 4736 WINDOW_TEXT_TOP_CLIP (w) = (dl->ascent + fheight * value); | |
| 4737 } | |
| 4738 | |
| 1708 | 4739 if (!point_would_be_visible (w, startp, XINT (point), 0)) |
| 428 | 4740 { |
| 665 | 4741 Charbpos new_point; |
| 438 | 4742 |
| 428 | 4743 if (MINI_WINDOW_P (w)) |
| 4744 new_point = startp; | |
| 4745 else | |
| 4746 new_point = start_of_last_line (w, startp); | |
| 438 | 4747 |
| 844 | 4748 Fset_window_point (wrap_window (w), make_int (new_point)); |
| 428 | 4749 } |
| 4750 } | |
| 4751 } | |
| 4752 } | |
| 4753 else /* value == 0 && direction == -1 */ | |
| 4754 { | |
| 4755 if (WINDOW_TEXT_TOP_CLIP (w)) | |
| 4756 { | |
| 4757 WINDOW_TEXT_TOP_CLIP (w) = 0; | |
| 4758 MARK_WINDOWS_CHANGED (w); | |
| 4759 } | |
| 4760 if (marker_position (w->start[CURRENT_DISP]) == BUF_BEGV (b)) | |
| 4761 { | |
| 563 | 4762 maybe_signal_error_1 (Qbeginning_of_buffer, Qnil, Qwindow, errb); |
| 428 | 4763 return; |
| 4764 } | |
| 4765 else | |
| 4766 { | |
| 4767 int vtarget; | |
| 4768 int movement = next_screen_context_lines - 1; | |
| 665 | 4769 Charbpos old_startp = marker_position (w->start[CURRENT_DISP]); |
| 4770 Charbpos bottom = vmotion (w, old_startp, movement, &vtarget); | |
| 4771 Charbpos startp = | |
| 428 | 4772 start_with_point_on_display_line (w, bottom, |
| 4773 -1 - (movement - vtarget)); | |
| 4774 | |
| 4775 if (startp >= old_startp) | |
| 4776 startp = vmotion (w, old_startp, -1, NULL); | |
| 4777 | |
| 4778 set_marker_restricted (w->start[CURRENT_DISP], make_int (startp), | |
| 4779 w->buffer); | |
| 4780 w->force_start = 1; | |
| 4781 w->start_at_line_beg = beginning_of_line_p (b, startp); | |
| 4782 MARK_WINDOWS_CHANGED (w); | |
| 4783 | |
| 1708 | 4784 if (!point_would_be_visible (w, startp, XINT (point), 0)) |
| 428 | 4785 { |
| 665 | 4786 Charbpos new_point = start_of_last_line (w, startp); |
| 428 | 4787 |
| 844 | 4788 Fset_window_point (wrap_window (w), make_int (new_point)); |
| 428 | 4789 } |
| 4790 } | |
| 4791 } | |
| 4792 } | |
| 4793 | |
| 4794 DEFUN ("scroll-up", Fscroll_up, 0, 1, "_P", /* | |
| 444 | 4795 Scroll text of current window up COUNT lines; or near full screen if no arg. |
| 428 | 4796 A near full screen is `next-screen-context-lines' less than a full screen. |
| 444 | 4797 Negative COUNT means scroll downward. |
| 428 | 4798 When calling from a program, supply an integer as argument or nil. |
| 4799 On attempt to scroll past end of buffer, `end-of-buffer' is signaled. | |
| 4800 On attempt to scroll past beginning of buffer, `beginning-of-buffer' is | |
| 4801 signaled. | |
| 462 | 4802 |
| 4803 The characters that are moved over may be added to the current selection | |
| 4804 \(i.e. active region) if the Shift key is held down, a motion key is used | |
| 4805 to invoke this command, and `shifted-motion-keys-select-region' is t; see | |
| 4806 the documentation for this variable for more details. | |
| 428 | 4807 */ |
| 444 | 4808 (count)) |
| 4809 { | |
| 4810 window_scroll (Fselected_window (Qnil), count, 1, ERROR_ME); | |
| 428 | 4811 return Qnil; |
| 4812 } | |
| 4813 | |
| 4814 DEFUN ("scroll-down", Fscroll_down, 0, 1, "_P", /* | |
| 444 | 4815 Scroll text of current window down COUNT lines; or near full screen if no arg. |
| 428 | 4816 A near full screen is `next-screen-context-lines' less than a full screen. |
| 444 | 4817 Negative COUNT means scroll upward. |
| 428 | 4818 When calling from a program, supply a number as argument or nil. |
| 4819 On attempt to scroll past end of buffer, `end-of-buffer' is signaled. | |
| 4820 On attempt to scroll past beginning of buffer, `beginning-of-buffer' is | |
| 4821 signaled. | |
| 462 | 4822 |
| 4823 The characters that are moved over may be added to the current selection | |
| 4824 \(i.e. active region) if the Shift key is held down, a motion key is used | |
| 4825 to invoke this command, and `shifted-motion-keys-select-region' is t; see | |
| 4826 the documentation for this variable for more details. | |
| 428 | 4827 */ |
| 444 | 4828 (count)) |
| 4829 { | |
| 4830 window_scroll (Fselected_window (Qnil), count, -1, ERROR_ME); | |
| 428 | 4831 return Qnil; |
| 4832 } | |
| 4833 | |
| 4834 DEFUN ("other-window-for-scrolling", Fother_window_for_scrolling, 0, 0, 0, /* | |
| 4835 Return the other window for "other window scroll" commands. | |
| 4836 If in the minibuffer, `minibuffer-scroll-window' if non-nil | |
| 4837 specifies the window. | |
| 4838 If `other-window-scroll-buffer' is non-nil, a window | |
| 4839 showing that buffer is used. | |
| 4840 */ | |
| 4841 ()) | |
| 4842 { | |
| 4843 Lisp_Object window; | |
| 4844 Lisp_Object selected_window = Fselected_window (Qnil); | |
| 4845 | |
| 4846 if (MINI_WINDOW_P (XWINDOW (selected_window)) | |
| 4847 && !NILP (Vminibuffer_scroll_window)) | |
| 4848 window = Vminibuffer_scroll_window; | |
| 4849 /* If buffer is specified, scroll that buffer. */ | |
| 4850 else if (!NILP (Vother_window_scroll_buffer)) | |
| 4851 { | |
| 4852 window = Fget_buffer_window (Vother_window_scroll_buffer, Qnil, Qnil); | |
| 4853 if (NILP (window)) | |
| 4854 window = display_buffer (Vother_window_scroll_buffer, Qt, Qnil); | |
| 4855 } | |
| 4856 else | |
| 4857 { | |
| 4858 /* Nothing specified; look for a neighboring window on the same | |
| 4859 frame. */ | |
| 4860 window = Fnext_window (selected_window, Qnil, Qnil, Qnil); | |
| 4861 | |
| 4862 if (EQ (window, selected_window)) | |
| 4863 /* That didn't get us anywhere; look for a window on another | |
| 4864 visible frame. */ | |
| 4865 do | |
| 4866 window = Fnext_window (window, Qnil, Qt, Qnil); | |
| 4867 while (! FRAME_VISIBLE_P (XFRAME (WINDOW_FRAME (XWINDOW (window)))) | |
| 4868 && ! EQ (window, selected_window)); | |
| 4869 } | |
| 4870 | |
| 4871 CHECK_LIVE_WINDOW (window); | |
| 4872 | |
| 4873 if (EQ (window, selected_window)) | |
| 563 | 4874 invalid_operation ("There is no other window", Qunbound); |
| 428 | 4875 |
| 4876 return window; | |
| 4877 } | |
| 4878 | |
| 4879 DEFUN ("scroll-other-window", Fscroll_other_window, 0, 1, "_P", /* | |
| 444 | 4880 Scroll next window upward COUNT lines; or near full frame if no arg. |
| 428 | 4881 The next window is the one below the current one; or the one at the top |
| 444 | 4882 if the current one is at the bottom. Negative COUNT means scroll downward. |
| 428 | 4883 When calling from a program, supply a number as argument or nil. |
| 4884 | |
| 4885 If in the minibuffer, `minibuffer-scroll-window' if non-nil | |
| 4886 specifies the window to scroll. | |
| 4887 If `other-window-scroll-buffer' is non-nil, scroll the window | |
| 4888 showing that buffer, popping the buffer up if necessary. | |
| 4889 */ | |
| 444 | 4890 (count)) |
| 4891 { | |
| 4892 window_scroll (Fother_window_for_scrolling (), count, 1, ERROR_ME); | |
| 428 | 4893 return Qnil; |
| 4894 } | |
| 4895 | |
| 4896 DEFUN ("scroll-left", Fscroll_left, 0, 1, "_P", /* | |
| 444 | 4897 Scroll selected window display COUNT columns left. |
| 4898 Default for COUNT is window width minus 2. | |
| 462 | 4899 |
| 4900 The characters that are moved over may be added to the current selection | |
| 4901 \(i.e. active region) if the Shift key is held down, a motion key is used | |
| 4902 to invoke this command, and `shifted-motion-keys-select-region' is t; see | |
| 4903 the documentation for this variable for more details. | |
| 428 | 4904 */ |
| 444 | 4905 (count)) |
| 428 | 4906 { |
| 4907 Lisp_Object window = Fselected_window (Qnil); | |
| 4908 struct window *w = XWINDOW (window); | |
| 444 | 4909 int n = (NILP (count) ? |
| 4910 window_char_width (w, 0) - 2 : | |
| 4911 XINT (Fprefix_numeric_value (count))); | |
| 4912 | |
| 4913 return Fset_window_hscroll (window, make_int (w->hscroll + n)); | |
| 428 | 4914 } |
| 4915 | |
| 4916 DEFUN ("scroll-right", Fscroll_right, 0, 1, "_P", /* | |
| 444 | 4917 Scroll selected window display COUNT columns right. |
| 4918 Default for COUNT is window width minus 2. | |
| 462 | 4919 |
| 4920 The characters that are moved over may be added to the current selection | |
| 4921 \(i.e. active region) if the Shift key is held down, a motion key is used | |
| 4922 to invoke this command, and `shifted-motion-keys-select-region' is t; see | |
| 4923 the documentation for this variable for more details. | |
| 428 | 4924 */ |
| 444 | 4925 (count)) |
| 428 | 4926 { |
| 4927 Lisp_Object window = Fselected_window (Qnil); | |
| 4928 struct window *w = XWINDOW (window); | |
| 444 | 4929 int n = (NILP (count) ? |
| 4930 window_char_width (w, 0) - 2 : | |
| 4931 XINT (Fprefix_numeric_value (count))); | |
| 4932 | |
| 4933 return Fset_window_hscroll (window, make_int (w->hscroll - n)); | |
| 428 | 4934 } |
| 4935 | |
| 4936 DEFUN ("center-to-window-line", Fcenter_to_window_line, 0, 2, "_P", /* | |
| 4937 Center point in WINDOW. With N, put point on line N. | |
| 4938 The desired position of point is always relative to the window. | |
| 4939 If WINDOW is nil, the selected window is used. | |
| 4940 */ | |
| 4941 (n, window)) | |
| 4942 { | |
| 4943 struct window *w = decode_window (window); | |
| 4944 struct buffer *b = XBUFFER (w->buffer); | |
| 665 | 4945 Charbpos opoint = BUF_PT (b); |
| 4946 Charbpos startp; | |
| 428 | 4947 |
| 4948 if (NILP (n)) | |
| 4949 startp = start_with_line_at_pixpos (w, opoint, window_half_pixpos (w)); | |
| 4950 else | |
| 4951 { | |
| 4952 n = Fprefix_numeric_value (n); | |
| 4953 CHECK_INT (n); | |
| 4954 startp = start_with_point_on_display_line (w, opoint, XINT (n)); | |
| 4955 } | |
| 4956 | |
| 4957 Fset_marker (w->start[CURRENT_DISP], make_int (startp), w->buffer); | |
| 4958 | |
| 4959 w->start_at_line_beg = beginning_of_line_p (b, startp); | |
| 4960 w->force_start = 1; | |
| 4961 MARK_WINDOWS_CHANGED (w); | |
| 4962 return Qnil; | |
| 4963 } | |
| 4964 | |
| 4965 DEFUN ("move-to-window-line", Fmove_to_window_line, 1, 2, "_P", /* | |
| 4966 Position point relative to WINDOW. | |
| 4967 With no argument, position text at center of window. | |
| 4968 An argument specifies window line; zero means top of window, | |
| 4969 negative means relative to bottom of window. | |
| 4970 If WINDOW is nil, the selected window is used. | |
| 4971 */ | |
| 4972 (arg, window)) | |
| 4973 { | |
| 4974 struct window *w; | |
| 4975 struct buffer *b; | |
| 4976 int height; | |
| 665 | 4977 Charbpos start, new_point; |
| 428 | 4978 int selected; |
| 4979 | |
| 4980 /* Don't use decode_window() because we need the new value of | |
| 4981 WINDOW. */ | |
| 4982 if (NILP (window)) | |
| 4983 window = Fselected_window (Qnil); | |
| 4984 else | |
| 4985 CHECK_LIVE_WINDOW (window); | |
| 4986 w = XWINDOW (window); | |
| 4987 b = XBUFFER (w->buffer); | |
| 4988 | |
| 4989 height = window_displayed_height (w); | |
| 4990 selected = EQ (window, Fselected_window (w->frame)); | |
| 4991 | |
| 4992 if (NILP (arg)) | |
| 4993 { | |
| 4994 int retval; | |
| 4995 | |
| 4996 if (XINT (w->last_modified[CURRENT_DISP]) >= BUF_MODIFF (b) | |
| 4997 && XINT (w->last_facechange[CURRENT_DISP]) >= BUF_FACECHANGE (b)) | |
| 4998 { | |
| 4999 new_point = point_at_center (w, CURRENT_DISP, 0, 0); | |
| 5000 | |
| 844 | 5001 /* #### Here we are checking the selected window of the frame |
| 5002 instead of the selected window period. Elsewhere we check | |
| 5003 the selected window of the device. What a mess! */ | |
| 428 | 5004 if (selected) |
| 5005 BUF_SET_PT (b, new_point); | |
| 5006 else | |
| 5007 Fset_window_point (window, make_int (new_point)); | |
| 5008 | |
| 5009 retval = line_at_center (w, CURRENT_DISP, 0, 0); | |
| 5010 } | |
| 5011 else | |
| 5012 { | |
| 5013 start = marker_position (w->start[CURRENT_DISP]); | |
| 5014 if (start < BUF_BEGV (b)) | |
| 5015 start = BUF_BEGV (b); | |
| 5016 else if (start > BUF_ZV (b)) | |
| 5017 start = BUF_ZV (b); | |
| 5018 | |
| 5019 if (selected) | |
| 5020 new_point = BUF_PT (b); | |
| 5021 else | |
| 5022 new_point = marker_position (w->pointm[CURRENT_DISP]); | |
| 5023 | |
| 5024 new_point = point_at_center (w, CMOTION_DISP, start, BUF_PT (b)); | |
| 5025 | |
| 5026 if (selected) | |
| 5027 BUF_SET_PT (b, new_point); | |
| 5028 else | |
| 5029 Fset_window_point (window, make_int (new_point)); | |
| 5030 | |
| 5031 retval = line_at_center (w, CMOTION_DISP, start, BUF_PT (b)); | |
| 5032 } | |
| 5033 | |
| 5034 return make_int (retval); | |
| 5035 } | |
| 5036 else | |
| 5037 { | |
| 5038 /* #### Is this going to work right when at eob? */ | |
| 5039 arg = Fprefix_numeric_value (arg); | |
| 5040 if (XINT (arg) < 0) | |
| 793 | 5041 arg = make_int (XINT (arg) + height); |
| 428 | 5042 } |
| 5043 | |
| 5044 start = marker_position (w->start[CURRENT_DISP]); | |
| 5045 if (start < BUF_BEGV (b) || start > BUF_ZV (b)) | |
| 5046 { | |
| 5047 if (selected) | |
| 5048 new_point = BUF_PT (b); | |
| 5049 else | |
| 5050 new_point = marker_position (w->pointm[CURRENT_DISP]); | |
| 5051 | |
| 5052 new_point = vmotion (XWINDOW (window), new_point, -height / 2, 0); | |
| 5053 | |
| 5054 if (selected) | |
| 5055 BUF_SET_PT (b, new_point); | |
| 5056 else | |
| 5057 Fset_window_point (window, make_int (new_point)); | |
| 5058 | |
| 5059 Fset_marker (w->start[CURRENT_DISP], make_int (new_point), | |
| 5060 w->buffer); | |
| 5061 w->start_at_line_beg = beginning_of_line_p (b, new_point); | |
| 5062 w->force_start = 1; | |
| 5063 } | |
| 5064 else | |
| 5065 { | |
| 5066 if (selected) | |
| 5067 BUF_SET_PT (b, start); | |
| 5068 else | |
| 5069 Fset_window_point (window, make_int (start)); | |
| 5070 } | |
| 5071 | |
| 5072 if (selected) | |
| 5073 return Fvertical_motion (arg, window, Qnil); | |
| 5074 else | |
| 5075 { | |
| 5076 int vpos; | |
| 5077 new_point = vmotion (XWINDOW (window), | |
| 5078 marker_position (w->pointm[CURRENT_DISP]), | |
| 5079 XINT (arg), &vpos); | |
| 5080 Fset_window_point (window, make_int (new_point)); | |
| 5081 return make_int (vpos); | |
| 5082 } | |
| 5083 } | |
| 5084 | |
| 5085 | |
| 5086 static int | |
| 5087 map_windows_1 (Lisp_Object window, | |
| 5088 int (*mapfun) (struct window *w, void *closure), | |
| 5089 void *closure) | |
| 5090 { | |
| 5091 for (; !NILP (window); window = XWINDOW (window)->next) | |
| 5092 { | |
| 5093 int retval; | |
| 5094 struct window *w = XWINDOW (window); | |
| 5095 | |
| 5096 if (!NILP (w->vchild)) | |
| 5097 retval = map_windows_1 (w->vchild, mapfun, closure); | |
| 5098 else if (!NILP (w->hchild)) | |
| 5099 retval = map_windows_1 (w->hchild, mapfun, closure); | |
| 5100 else | |
| 5101 retval = (mapfun) (w, closure); | |
| 5102 | |
| 5103 if (retval) | |
| 5104 return retval; | |
| 5105 } | |
| 5106 | |
| 5107 return 0; | |
| 5108 } | |
| 5109 | |
| 5110 /* Map MAPFUN over the windows in F. CLOSURE is passed to each | |
| 5111 invocation of MAPFUN. If any invocation of MAPFUN returns | |
| 5112 non-zero, the mapping is halted. Otherwise, map_windows() maps | |
| 5113 over all windows in F. | |
| 5114 | |
| 800 | 5115 If F is null, map over all frames on all devices and consoles. |
| 5116 | |
| 428 | 5117 If MAPFUN creates or deletes windows, the behavior is undefined. */ |
| 5118 | |
| 5119 int | |
| 5120 map_windows (struct frame *f, int (*mapfun) (struct window *w, void *closure), | |
| 5121 void *closure) | |
| 5122 { | |
| 5123 if (f) | |
| 5124 return map_windows_1 (FRAME_ROOT_WINDOW (f), mapfun, closure); | |
| 5125 else | |
| 5126 { | |
| 5127 Lisp_Object frmcons, devcons, concons; | |
| 5128 | |
| 5129 FRAME_LOOP_NO_BREAK(frmcons, devcons, concons) | |
| 5130 { | |
| 5131 int v = map_windows_1 (FRAME_ROOT_WINDOW (XFRAME (XCAR (frmcons))), | |
| 5132 mapfun, closure); | |
| 5133 if (v) | |
| 5134 return v; | |
| 5135 } | |
| 5136 } | |
| 5137 | |
| 5138 return 0; | |
| 5139 } | |
| 5140 | |
| 5141 | |
| 5142 static void | |
| 2286 | 5143 modeline_shadow_thickness_changed (Lisp_Object UNUSED (specifier), |
| 5144 struct window *w, | |
| 5145 Lisp_Object UNUSED (oldval)) | |
| 428 | 5146 { |
| 5147 w->shadow_thickness_changed = 1; | |
| 5148 MARK_WINDOWS_CHANGED (w); | |
| 5149 } | |
| 5150 | |
| 5151 static void | |
| 2286 | 5152 vertical_divider_changed_in_window (Lisp_Object UNUSED (specifier), |
| 428 | 5153 struct window *w, |
| 2286 | 5154 Lisp_Object UNUSED (oldval)) |
| 428 | 5155 { |
| 5156 MARK_WINDOWS_CHANGED (w); | |
| 5157 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (XFRAME (WINDOW_FRAME (w))); | |
| 5158 } | |
| 5159 | |
| 5160 /* also used in scrollbar.c */ | |
| 5161 void | |
| 2286 | 5162 some_window_value_changed (Lisp_Object UNUSED (specifier), |
| 5163 struct window *w, | |
| 5164 Lisp_Object UNUSED (oldval)) | |
| 428 | 5165 { |
| 5166 MARK_WINDOWS_CHANGED (w); | |
| 5167 } | |
| 5168 | |
| 5169 #ifdef MEMORY_USAGE_STATS | |
| 5170 | |
| 5171 struct window_stats | |
| 5172 { | |
| 5173 int face; | |
| 5174 int glyph; | |
| 5175 #ifdef HAVE_SCROLLBARS | |
| 5176 int scrollbar; | |
| 5177 #endif | |
| 5178 int line_start; | |
| 5179 int other_redisplay; | |
| 5180 int other; | |
| 5181 }; | |
| 5182 | |
| 5183 static void | |
| 5184 compute_window_mirror_usage (struct window_mirror *mir, | |
| 5185 struct window_stats *stats, | |
| 5186 struct overhead_stats *ovstats) | |
| 5187 { | |
| 5188 if (!mir) | |
| 5189 return; | |
| 3024 | 5190 stats->other += LISPOBJ_STORAGE_SIZE (mir, sizeof (*mir), ovstats); |
| 428 | 5191 #ifdef HAVE_SCROLLBARS |
| 5192 { | |
| 5193 struct device *d = XDEVICE (FRAME_DEVICE (mir->frame)); | |
| 5194 | |
| 5195 stats->scrollbar += | |
| 5196 compute_scrollbar_instance_usage (d, mir->scrollbar_vertical_instance, | |
| 5197 ovstats); | |
| 5198 stats->scrollbar += | |
| 5199 compute_scrollbar_instance_usage (d, mir->scrollbar_horizontal_instance, | |
| 5200 ovstats); | |
| 5201 } | |
| 5202 #endif /* HAVE_SCROLLBARS */ | |
| 5203 stats->other_redisplay += | |
| 5204 compute_display_line_dynarr_usage (mir->current_display_lines, ovstats); | |
| 5205 stats->other_redisplay += | |
| 5206 compute_display_line_dynarr_usage (mir->desired_display_lines, ovstats); | |
| 5207 } | |
| 5208 | |
| 5209 static void | |
| 5210 compute_window_usage (struct window *w, struct window_stats *stats, | |
| 5211 struct overhead_stats *ovstats) | |
| 5212 { | |
| 5213 xzero (*stats); | |
| 3024 | 5214 stats->other += LISPOBJ_STORAGE_SIZE (w, sizeof (*w), ovstats); |
| 428 | 5215 stats->face += compute_face_cachel_usage (w->face_cachels, ovstats); |
| 5216 stats->glyph += compute_glyph_cachel_usage (w->glyph_cachels, ovstats); | |
| 5217 stats->line_start += | |
| 5218 compute_line_start_cache_dynarr_usage (w->line_start_cache, ovstats); | |
| 5219 compute_window_mirror_usage (find_window_mirror (w), stats, ovstats); | |
| 5220 } | |
| 5221 | |
| 5222 DEFUN ("window-memory-usage", Fwindow_memory_usage, 1, 1, 0, /* | |
| 5223 Return stats about the memory usage of window WINDOW. | |
| 5224 The values returned are in the form of an alist of usage types and byte | |
| 5225 counts. The byte counts attempt to encompass all the memory used | |
| 5226 by the window (separate from the memory logically associated with a | |
| 5227 buffer or frame), including internal structures and any malloc() | |
| 5228 overhead associated with them. In practice, the byte counts are | |
| 5229 underestimated because certain memory usage is very hard to determine | |
| 5230 \(e.g. the amount of memory used inside the Xt library or inside the | |
| 5231 X server) and because there is other stuff that might logically | |
| 5232 be associated with a window, buffer, or frame (e.g. window configurations, | |
| 5233 glyphs) but should not obviously be included in the usage counts. | |
| 5234 | |
| 5235 Multiple slices of the total memory usage may be returned, separated | |
| 5236 by a nil. Each slice represents a particular view of the memory, a | |
| 5237 particular way of partitioning it into groups. Within a slice, there | |
| 5238 is no overlap between the groups of memory, and each slice collectively | |
| 5239 represents all the memory concerned. | |
| 5240 */ | |
| 5241 (window)) | |
| 5242 { | |
| 5243 struct window_stats stats; | |
| 5244 struct overhead_stats ovstats; | |
| 5245 Lisp_Object val = Qnil; | |
| 5246 | |
| 5247 CHECK_WINDOW (window); /* dead windows should be allowed, no? */ | |
| 5248 xzero (ovstats); | |
| 5249 compute_window_usage (XWINDOW (window), &stats, &ovstats); | |
| 5250 | |
| 5251 val = acons (Qface_cache, make_int (stats.face), val); | |
| 5252 val = acons (Qglyph_cache, make_int (stats.glyph), val); | |
| 5253 #ifdef HAVE_SCROLLBARS | |
| 5254 val = acons (Qscrollbar_instances, make_int (stats.scrollbar), val); | |
| 5255 #endif | |
| 5256 val = acons (Qline_start_cache, make_int (stats.line_start), val); | |
| 5257 val = acons (Qother_redisplay, make_int (stats.other_redisplay), val); | |
| 5258 val = acons (Qother, make_int (stats.other), val); | |
| 5259 val = Fcons (Qnil, val); | |
| 5260 val = acons (Qactually_requested, make_int (ovstats.was_requested), val); | |
| 5261 val = acons (Qmalloc_overhead, make_int (ovstats.malloc_overhead), val); | |
| 5262 val = acons (Qdynarr_overhead, make_int (ovstats.dynarr_overhead), val); | |
| 5263 | |
| 5264 return Fnreverse (val); | |
| 5265 } | |
| 5266 | |
| 5267 #endif /* MEMORY_USAGE_STATS */ | |
| 5268 | |
| 5269 /* Mark all subwindows of a window as deleted. The argument | |
| 5270 W is actually the subwindow tree of the window in question. */ | |
| 5271 | |
| 5272 void | |
| 5273 delete_all_subwindows (struct window *w) | |
| 5274 { | |
| 5275 if (!NILP (w->next)) delete_all_subwindows (XWINDOW (w->next)); | |
| 5276 if (!NILP (w->vchild)) delete_all_subwindows (XWINDOW (w->vchild)); | |
| 5277 if (!NILP (w->hchild)) delete_all_subwindows (XWINDOW (w->hchild)); | |
| 5278 | |
| 5279 mark_window_as_deleted (w); | |
| 5280 } | |
| 5281 | |
| 1149 | 5282 |
| 2289 | 5283 static int |
| 5284 get_current_pixel_pos (Lisp_Object window, Lisp_Object pos, | |
| 5285 struct window **w, | |
| 5286 struct rune **rb, struct display_line **dl) | |
| 428 | 5287 { |
| 2289 | 5288 display_line_dynarr *dla; |
| 5289 struct display_block *db = NULL; | |
| 5290 int x, y; | |
| 5291 | |
| 5292 *rb = NULL; | |
| 5293 *dl = NULL; | |
| 5294 *w = decode_window (window); | |
| 5295 dla = window_display_lines (*w, CURRENT_DISP); | |
| 5296 x = (*w)->last_point_x[CURRENT_DISP]; | |
| 5297 y = (*w)->last_point_y[CURRENT_DISP]; | |
| 5298 if (MINI_WINDOW_P (*w)) | |
| 5299 return 0; | |
| 428 | 5300 |
| 5301 if (y<0 || x<0 || y >= Dynarr_length (dla) || !NILP (pos)) | |
| 5302 { | |
| 5303 int first_line, i; | |
| 665 | 5304 Charbpos point; |
| 428 | 5305 |
| 5306 if (NILP (pos)) | |
| 5307 pos = Fwindow_point (window); | |
| 438 | 5308 |
| 428 | 5309 CHECK_INT (pos); |
| 5310 point = XINT (pos); | |
| 5311 | |
| 4967 | 5312 if (Dynarr_length (dla) && Dynarr_begin (dla)->modeline) |
| 428 | 5313 first_line = 1; |
| 5314 else | |
| 5315 first_line = 0; | |
| 5316 | |
| 5317 for (i = first_line; i < Dynarr_length (dla); i++) | |
| 5318 { | |
| 2289 | 5319 *dl = Dynarr_atp (dla, i); |
| 428 | 5320 /* find the vertical location first */ |
| 2289 | 5321 if (point >= (*dl)->charpos && point <= (*dl)->end_charpos) |
| 428 | 5322 { |
| 2289 | 5323 db = get_display_block_from_line (*dl, TEXT); |
| 428 | 5324 for (i = 0; i < Dynarr_length (db->runes); i++) |
| 5325 { | |
| 2289 | 5326 *rb = Dynarr_atp (db->runes, i); |
| 2290 | 5327 if (point <= (*rb)->charpos) |
| 826 | 5328 goto found_charpos; |
| 428 | 5329 } |
| 2289 | 5330 return 0; |
| 428 | 5331 } |
| 5332 } | |
| 2289 | 5333 return 0; |
| 826 | 5334 found_charpos: |
| 428 | 5335 ; |
| 5336 } | |
| 5337 else | |
| 5338 { | |
| 442 | 5339 /* optimized case */ |
| 2289 | 5340 *dl = Dynarr_atp (dla, y); |
| 5341 db = get_display_block_from_line (*dl, TEXT); | |
| 428 | 5342 |
| 5343 if (x >= Dynarr_length (db->runes)) | |
| 2289 | 5344 return 0; |
| 5345 | |
| 5346 *rb = Dynarr_atp (db->runes, x); | |
| 428 | 5347 } |
| 5348 | |
| 2289 | 5349 return 1; |
| 5350 } | |
| 5351 | |
| 5352 DEFUN ("current-pixel-column", Fcurrent_pixel_column, 0, 2, 0, /* | |
| 5353 Return the horizontal pixel position of point POS in window. | |
| 5354 Beginning of line is column 0. If WINDOW is nil, the current window | |
| 5355 is assumed. If POS is nil, point is assumed. Note that POS must be | |
| 5356 visible for a non-nil result to be returned. This is calculated using | |
| 5357 the redisplay display tables; because of this, the returned value will | |
| 5358 only be correct if the redisplay tables are up-to-date. Use | |
| 5359 \"(sit-for 0)\" to insure that they are; however, if WINDOW is part of | |
| 5360 a new frame, use the following instead: | |
| 5361 (while (not (frame-visible-p frame)) (sleep-for .5)) | |
| 5362 */ | |
| 5363 (window, pos)) | |
| 5364 { | |
| 5365 struct window* w; | |
| 5366 struct display_line *dl; | |
| 5367 struct rune* rb; | |
| 5368 | |
| 5369 if (!get_current_pixel_pos(window, pos, &w, &rb, &dl)) | |
| 5370 return Qnil; | |
| 5371 | |
| 428 | 5372 return make_int (rb->xpos - WINDOW_LEFT (w)); |
| 5373 } | |
| 5374 | |
| 2289 | 5375 DEFUN ("current-pixel-row", Fcurrent_pixel_row, 0, 2, 0, /* |
| 5376 Return the vertical pixel position of point POS in window. Top of | |
| 5377 window is row 0. If WINDOW is nil, the current window is assumed. If | |
| 5378 POS is nil, point is assumed. Note that POS must be visible for a | |
| 5379 non-nil result to be returned. This is calculated using the redisplay | |
| 5380 display tables; because of this, the returned value will only be | |
| 5381 correct if the redisplay tables are up-to-date. Use \"(sit-for 0)\" | |
| 5382 to insure that they are; however, if WINDOW is part of a new frame, | |
| 5383 use the following instead: | |
| 5384 (while (not (frame-visible-p frame)) (sleep-for .5)) | |
| 5385 */ | |
| 5386 (window, pos)) | |
| 5387 { | |
| 5388 struct window* w; | |
| 5389 struct display_line *dl; | |
| 5390 struct rune* rb; | |
| 5391 | |
| 5392 if (!get_current_pixel_pos(window, pos, &w, &rb, &dl)) | |
| 5393 return Qnil; | |
| 5394 | |
| 5395 return make_int (dl->ypos - dl->ascent - WINDOW_TOP (w)); | |
| 5396 } | |
| 5397 | |
| 428 | 5398 |
| 5399 #ifdef DEBUG_XEMACS | |
| 5400 /* This is short and simple in elisp, but... it was written to debug | |
| 5401 problems purely on the C side. That is where we need to call it so | |
| 5402 here it is. */ | |
| 5403 static void | |
| 5404 debug_print_window (Lisp_Object window, int level) | |
| 5405 { | |
| 5406 int i; | |
| 5407 Lisp_Object child = Fwindow_first_vchild (window); | |
| 5408 | |
| 5409 if (NILP (child)) | |
| 5410 child = Fwindow_first_hchild (window); | |
| 5411 | |
| 5412 for (i = level; i > 0; i--) | |
| 442 | 5413 stderr_out ("\t"); |
| 5414 | |
| 5415 stderr_out ("#<window"); | |
| 428 | 5416 { |
| 5417 Lisp_Object buffer = XWINDOW (window)->buffer; | |
| 5418 if (!NILP (buffer) && BUFFERP (buffer)) | |
| 442 | 5419 stderr_out (" on %s", XSTRING_DATA (XBUFFER (buffer)->name)); |
| 428 | 5420 } |
| 442 | 5421 stderr_out (" 0x%x>", XWINDOW (window)->header.uid); |
| 428 | 5422 |
| 5423 while (!NILP (child)) | |
| 5424 { | |
| 5425 debug_print_window (child, level + 1); | |
| 5426 child = Fwindow_next_child (child); | |
| 5427 } | |
| 5428 } | |
| 5429 | |
| 5430 void debug_print_windows (struct frame *f); | |
| 5431 void | |
| 5432 debug_print_windows (struct frame *f) | |
| 5433 { | |
| 5434 debug_print_window (f->root_window, 0); | |
| 5435 putc ('\n', stderr); | |
| 5436 } | |
| 5437 #endif /* DEBUG_XEMACS */ | |
| 5438 | |
| 5439 | |
| 5440 /************************************************************************/ | |
| 5441 /* initialization */ | |
| 5442 /************************************************************************/ | |
| 5443 | |
| 5444 void | |
| 5445 syms_of_window (void) | |
| 5446 { | |
| 442 | 5447 INIT_LRECORD_IMPLEMENTATION (window); |
| 617 | 5448 INIT_LRECORD_IMPLEMENTATION (window_mirror); |
| 3092 | 5449 #ifdef NEW_GC |
| 5450 INIT_LRECORD_IMPLEMENTATION (face_cachel); | |
| 5451 INIT_LRECORD_IMPLEMENTATION (face_cachel_dynarr); | |
| 5452 INIT_LRECORD_IMPLEMENTATION (glyph_cachel); | |
| 5453 INIT_LRECORD_IMPLEMENTATION (glyph_cachel_dynarr); | |
| 5454 #endif /* NEW_GC */ | |
| 442 | 5455 |
| 563 | 5456 DEFSYMBOL (Qwindowp); |
| 5457 DEFSYMBOL (Qwindow_live_p); | |
| 5458 DEFSYMBOL (Qdisplay_buffer); | |
| 428 | 5459 |
| 5460 #ifdef MEMORY_USAGE_STATS | |
| 563 | 5461 DEFSYMBOL (Qface_cache); |
| 5462 DEFSYMBOL (Qglyph_cache); | |
| 5463 DEFSYMBOL (Qline_start_cache); | |
| 428 | 5464 #ifdef HAVE_SCROLLBARS |
| 563 | 5465 DEFSYMBOL (Qscrollbar_instances); |
| 428 | 5466 #endif |
| 563 | 5467 DEFSYMBOL (Qother_redisplay); |
| 428 | 5468 /* Qother in general.c */ |
| 5469 #endif | |
| 5470 | |
| 707 | 5471 DEFSYMBOL (Qtruncate_partial_width_windows); |
| 1149 | 5472 DEFSYMBOL (Qcurrent_window_configuration); |
| 5473 DEFSYMBOL (Qset_window_configuration); | |
| 707 | 5474 |
| 428 | 5475 DEFSUBR (Fselected_window); |
| 5476 DEFSUBR (Flast_nonminibuf_window); | |
| 5477 DEFSUBR (Fminibuffer_window); | |
| 5478 DEFSUBR (Fwindow_minibuffer_p); | |
| 5479 DEFSUBR (Fwindowp); | |
| 5480 DEFSUBR (Fwindow_live_p); | |
| 5481 DEFSUBR (Fwindow_first_hchild); | |
| 5482 DEFSUBR (Fwindow_first_vchild); | |
| 5483 DEFSUBR (Fwindow_next_child); | |
| 5484 DEFSUBR (Fwindow_previous_child); | |
| 5485 DEFSUBR (Fwindow_parent); | |
| 5486 DEFSUBR (Fwindow_lowest_p); | |
| 5487 DEFSUBR (Fwindow_truncated_p); | |
| 5488 DEFSUBR (Fwindow_highest_p); | |
| 5489 DEFSUBR (Fwindow_leftmost_p); | |
| 5490 DEFSUBR (Fwindow_rightmost_p); | |
| 5491 DEFSUBR (Fpos_visible_in_window_p); | |
| 5492 DEFSUBR (Fwindow_buffer); | |
| 5493 DEFSUBR (Fwindow_frame); | |
| 5494 DEFSUBR (Fwindow_height); | |
| 5495 DEFSUBR (Fwindow_displayed_height); | |
| 5496 DEFSUBR (Fwindow_width); | |
| 442 | 5497 DEFSUBR (Fwindow_full_width); |
| 428 | 5498 DEFSUBR (Fwindow_pixel_height); |
| 5499 DEFSUBR (Fwindow_pixel_width); | |
| 442 | 5500 DEFSUBR (Fwindow_text_area_height); |
| 428 | 5501 DEFSUBR (Fwindow_text_area_pixel_height); |
| 5502 DEFSUBR (Fwindow_displayed_text_pixel_height); | |
| 5503 DEFSUBR (Fwindow_text_area_pixel_width); | |
| 5504 DEFSUBR (Fwindow_hscroll); | |
| 438 | 5505 DEFSUBR (Fset_window_hscroll); |
| 428 | 5506 DEFSUBR (Fmodeline_hscroll); |
| 5507 DEFSUBR (Fset_modeline_hscroll); | |
| 5508 DEFSUBR (Fwindow_pixel_edges); | |
| 5509 DEFSUBR (Fwindow_text_area_pixel_edges); | |
| 5510 DEFSUBR (Fwindow_point); | |
| 5511 DEFSUBR (Fwindow_start); | |
| 5512 DEFSUBR (Fwindow_end); | |
| 442 | 5513 DEFSUBR (Fwindow_last_line_visible_height); |
| 428 | 5514 DEFSUBR (Fset_window_point); |
| 5515 DEFSUBR (Fset_window_start); | |
| 5516 DEFSUBR (Fwindow_dedicated_p); | |
| 5517 DEFSUBR (Fset_window_dedicated_p); | |
| 5518 DEFSUBR (Fnext_window); | |
| 5519 DEFSUBR (Fprevious_window); | |
| 5520 DEFSUBR (Fnext_vertical_window); | |
| 5521 DEFSUBR (Fother_window); | |
| 5522 DEFSUBR (Fget_lru_window); | |
| 5523 DEFSUBR (Fget_largest_window); | |
| 5524 DEFSUBR (Fget_buffer_window); | |
| 5525 DEFSUBR (Fwindow_left_margin_pixel_width); | |
| 5526 DEFSUBR (Fwindow_right_margin_pixel_width); | |
| 5527 DEFSUBR (Fdelete_other_windows); | |
| 5528 DEFSUBR (Fdelete_windows_on); | |
| 5529 DEFSUBR (Freplace_buffer_in_windows); | |
| 5530 DEFSUBR (Fdelete_window); | |
| 5531 DEFSUBR (Fset_window_buffer); | |
| 5532 DEFSUBR (Fselect_window); | |
| 5533 DEFSUBR (Fsplit_window); | |
| 5534 DEFSUBR (Fenlarge_window); | |
| 5535 DEFSUBR (Fenlarge_window_pixels); | |
| 5536 DEFSUBR (Fshrink_window); | |
| 5537 DEFSUBR (Fshrink_window_pixels); | |
| 5538 DEFSUBR (Fscroll_up); | |
| 5539 DEFSUBR (Fscroll_down); | |
| 5540 DEFSUBR (Fscroll_left); | |
| 5541 DEFSUBR (Fscroll_right); | |
| 5542 DEFSUBR (Fother_window_for_scrolling); | |
| 5543 DEFSUBR (Fscroll_other_window); | |
| 5544 DEFSUBR (Fcenter_to_window_line); | |
| 5545 DEFSUBR (Fmove_to_window_line); | |
| 5546 #ifdef MEMORY_USAGE_STATS | |
| 5547 DEFSUBR (Fwindow_memory_usage); | |
| 5548 #endif | |
| 5549 DEFSUBR (Fcurrent_pixel_column); | |
| 2289 | 5550 DEFSUBR (Fcurrent_pixel_row); |
| 428 | 5551 } |
| 5552 | |
| 5553 void | |
| 5554 reinit_vars_of_window (void) | |
| 5555 { | |
| 5556 /* Make sure all windows get marked */ | |
| 5557 minibuf_window = Qnil; | |
| 5558 staticpro_nodump (&minibuf_window); | |
| 5559 } | |
| 5560 | |
| 5561 void | |
| 5562 vars_of_window (void) | |
| 5563 { | |
| 5564 DEFVAR_BOOL ("scroll-on-clipped-lines", &scroll_on_clipped_lines /* | |
| 5565 *Non-nil means to scroll if point lands on a line which is clipped. | |
| 5566 */ ); | |
| 5567 scroll_on_clipped_lines = 1; | |
| 5568 | |
| 5569 DEFVAR_LISP ("temp-buffer-show-function", &Vtemp_buffer_show_function /* | |
| 5570 Non-nil means call as function to display a help buffer. | |
| 5571 The function is called with one argument, the buffer to be displayed. | |
| 5572 Used by `with-output-to-temp-buffer'. | |
| 5573 If this function is used, then it must do the entire job of showing | |
| 5574 the buffer; `temp-buffer-show-hook' is not run unless this function runs it. | |
| 442 | 5575 \(`temp-buffer-show-hook' is obsolete. Do not use in new code.) |
| 428 | 5576 */ ); |
| 5577 Vtemp_buffer_show_function = Qnil; | |
| 5578 | |
| 5579 DEFVAR_LISP ("minibuffer-scroll-window", &Vminibuffer_scroll_window /* | |
| 5580 Non-nil means it is the window that \\<minibuffer-local-map>\\[scroll-other-window] in minibuffer should scroll. | |
| 5581 */ ); | |
| 5582 Vminibuffer_scroll_window = Qnil; | |
| 5583 | |
| 5584 DEFVAR_LISP ("other-window-scroll-buffer", &Vother_window_scroll_buffer /* | |
| 5585 If non-nil, this is a buffer and \\[scroll-other-window] should scroll its window. | |
| 5586 */ ); | |
| 5587 Vother_window_scroll_buffer = Qnil; | |
| 5588 | |
| 5589 DEFVAR_LISP ("window-pixel-scroll-increment", &Vwindow_pixel_scroll_increment /* | |
| 5590 *Number of pixels to scroll by per requested line. | |
| 5591 If nil then normal line scrolling occurs regardless of line height. | |
| 5592 If t then scrolling is done in increments equal to the height of the default face. | |
| 5593 */ ); | |
| 5594 Vwindow_pixel_scroll_increment = Qt; | |
| 5595 | |
| 5596 DEFVAR_INT ("next-screen-context-lines", &next_screen_context_lines /* | |
| 5597 *Number of lines of continuity when scrolling by screenfuls. | |
| 5598 */ ); | |
| 5599 next_screen_context_lines = 2; | |
| 5600 | |
| 5601 DEFVAR_INT ("window-min-height", &window_min_height /* | |
| 5602 *Delete any window less than this tall (including its modeline). | |
| 5603 */ ); | |
| 5604 window_min_height = 4; | |
| 5605 | |
| 5606 DEFVAR_INT ("window-min-width", &window_min_width /* | |
| 5607 *Delete any window less than this wide. | |
| 5608 */ ); | |
| 5609 window_min_width = 10; | |
| 5610 } | |
| 5611 | |
| 5612 void | |
| 5613 specifier_vars_of_window (void) | |
| 5614 { | |
| 5615 DEFVAR_SPECIFIER ("modeline-shadow-thickness", &Vmodeline_shadow_thickness /* | |
| 5616 *How thick to draw 3D shadows around modelines. | |
| 5617 If this is set to 0, modelines will be the traditional 2D. Sizes above | |
| 5618 10 will be accepted but the maximum thickness that will be drawn is 10. | |
| 5619 This is a specifier; use `set-specifier' to change it. | |
| 5620 */ ); | |
| 5621 Vmodeline_shadow_thickness = Fmake_specifier (Qinteger); | |
| 5622 /* The initial value for modeline-shadow-thickness is 2, but if the | |
| 5623 user removes all specifications we provide a fallback value of 0, | |
| 5624 which is probably what was expected. */ | |
| 5625 set_specifier_fallback (Vmodeline_shadow_thickness, | |
| 5626 list1 (Fcons (Qnil, Qzero))); | |
| 5627 Fadd_spec_to_specifier (Vmodeline_shadow_thickness, make_int (2), | |
| 5628 Qnil, Qnil, Qnil); | |
| 5629 set_specifier_caching (Vmodeline_shadow_thickness, | |
| 438 | 5630 offsetof (struct window, modeline_shadow_thickness), |
| 428 | 5631 modeline_shadow_thickness_changed, |
| 444 | 5632 0, 0, 0); |
| 428 | 5633 |
| 5634 DEFVAR_SPECIFIER ("has-modeline-p", &Vhas_modeline_p /* | |
| 5635 *Whether the modeline should be displayed. | |
| 5636 This is a specifier; use `set-specifier' to change it. | |
| 5637 */ ); | |
| 5638 Vhas_modeline_p = Fmake_specifier (Qboolean); | |
| 5639 set_specifier_fallback (Vhas_modeline_p, | |
| 5640 list1 (Fcons (Qnil, Qt))); | |
| 5641 set_specifier_caching (Vhas_modeline_p, | |
| 438 | 5642 offsetof (struct window, has_modeline_p), |
| 428 | 5643 /* #### It's strange that we need a special |
| 5644 flag to indicate that the shadow-thickness | |
| 5645 has changed, but not one to indicate that | |
| 5646 the modeline has been turned off or on. */ | |
| 5647 some_window_value_changed, | |
| 444 | 5648 0, 0, 0); |
| 428 | 5649 |
| 5650 DEFVAR_SPECIFIER ("vertical-divider-always-visible-p", | |
| 5651 &Vvertical_divider_always_visible_p /* | |
| 5652 *Should XEmacs always display vertical dividers between windows. | |
| 5653 | |
| 5654 When this is non-nil, vertical dividers are always shown, and are | |
| 5655 draggable. When it is nil, vertical dividers are shown only when | |
| 5656 there are no scrollbars in between windows, and are not draggable. | |
| 5657 | |
| 5658 This is a specifier; use `set-specifier' to change it. | |
| 5659 */ ); | |
| 5660 Vvertical_divider_always_visible_p = Fmake_specifier (Qboolean); | |
| 5661 set_specifier_fallback (Vvertical_divider_always_visible_p, | |
| 5662 list1 (Fcons (Qnil, Qt))); | |
| 5663 set_specifier_caching (Vvertical_divider_always_visible_p, | |
| 438 | 5664 offsetof (struct window, |
| 5665 vertical_divider_always_visible_p), | |
| 428 | 5666 vertical_divider_changed_in_window, |
| 444 | 5667 0, 0, 0); |
| 428 | 5668 |
| 5669 DEFVAR_SPECIFIER ("vertical-divider-shadow-thickness", &Vvertical_divider_shadow_thickness /* | |
| 5670 *How thick to draw 3D shadows around vertical dividers. | |
| 5671 This is a specifier; use `set-specifier' to change it. | |
| 5672 */ ); | |
| 5673 Vvertical_divider_shadow_thickness = Fmake_specifier (Qinteger); | |
| 5674 set_specifier_fallback (Vvertical_divider_shadow_thickness, | |
| 5675 list1 (Fcons (Qnil, Qzero))); | |
| 5676 Fadd_spec_to_specifier (Vvertical_divider_shadow_thickness, make_int (2), | |
| 5677 Qnil, Qnil, Qnil); | |
| 5678 set_specifier_caching (Vvertical_divider_shadow_thickness, | |
| 438 | 5679 offsetof (struct window, |
| 5680 vertical_divider_shadow_thickness), | |
| 428 | 5681 vertical_divider_changed_in_window, |
| 444 | 5682 0, 0, 0); |
| 428 | 5683 DEFVAR_SPECIFIER ("vertical-divider-line-width", &Vvertical_divider_line_width /* |
| 5684 *The width of the vertical dividers, not including shadows. | |
| 5685 | |
| 5686 For TTY windows, divider line is always one character wide. When | |
| 5687 instance of this specifier is zero in a TTY window, no divider is | |
| 5688 drawn at all between windows. When non-zero, a one character wide | |
| 5689 divider is displayed. | |
| 5690 | |
| 5691 This is a specifier; use `set-specifier' to change it. | |
| 5692 */ ); | |
| 5693 | |
| 5694 Vvertical_divider_line_width = Fmake_specifier (Qnatnum); | |
| 5695 { | |
| 5696 Lisp_Object fb = Qnil; | |
| 5697 #ifdef HAVE_TTY | |
| 5698 fb = Fcons (Fcons (list1 (Qtty), make_int (1)), fb); | |
| 5699 #endif | |
| 462 | 5700 #ifdef HAVE_GTK |
| 5701 fb = Fcons (Fcons (list1 (Qgtk), make_int (3)), fb); | |
| 5702 #endif | |
| 428 | 5703 #ifdef HAVE_X_WINDOWS |
| 5704 fb = Fcons (Fcons (list1 (Qx), make_int (3)), fb); | |
| 5705 #endif | |
| 5706 #ifdef HAVE_MS_WINDOWS | |
| 5707 /* #### This should be made magic and made to obey system settings */ | |
| 5708 fb = Fcons (Fcons (list1 (Qmswindows), make_int (3)), fb); | |
| 5709 #endif | |
| 5710 set_specifier_fallback (Vvertical_divider_line_width, fb); | |
| 5711 } | |
| 5712 set_specifier_caching (Vvertical_divider_line_width, | |
| 438 | 5713 offsetof (struct window, |
| 5714 vertical_divider_line_width), | |
| 428 | 5715 vertical_divider_changed_in_window, |
| 444 | 5716 0, 0, 0); |
| 428 | 5717 |
| 5718 DEFVAR_SPECIFIER ("vertical-divider-spacing", &Vvertical_divider_spacing /* | |
| 5719 *How much space to leave around the vertical dividers. | |
| 5720 | |
| 5721 In TTY windows, spacing is always zero, and the value of this | |
| 5722 specifier is ignored. | |
| 5723 | |
| 5724 This is a specifier; use `set-specifier' to change it. | |
| 5725 */ ); | |
| 5726 Vvertical_divider_spacing = Fmake_specifier (Qnatnum); | |
| 5727 { | |
| 5728 Lisp_Object fb = Qnil; | |
| 5729 #ifdef HAVE_TTY | |
| 5730 fb = Fcons (Fcons (list1 (Qtty), Qzero), fb); | |
| 5731 #endif | |
| 5732 #ifdef HAVE_X_WINDOWS | |
| 5733 /* #### 3D dividers look great on MS Windows with spacing = 0. | |
| 5734 Should not the same value be the fallback under X? - kkm */ | |
| 5735 fb = Fcons (Fcons (list1 (Qx), make_int (2)), fb); | |
| 5736 #endif | |
| 462 | 5737 #ifdef HAVE_GTK |
| 5738 fb = Fcons (Fcons (list1 (Qgtk), Qzero), fb); | |
| 5739 #endif | |
| 428 | 5740 #ifdef HAVE_MS_WINDOWS |
| 5741 fb = Fcons (Fcons (list1 (Qmswindows), Qzero), fb); | |
| 5742 #endif | |
| 5743 set_specifier_fallback (Vvertical_divider_spacing, fb); | |
| 5744 } | |
| 5745 set_specifier_caching (Vvertical_divider_spacing, | |
| 438 | 5746 offsetof (struct window, vertical_divider_spacing), |
| 428 | 5747 vertical_divider_changed_in_window, |
| 444 | 5748 0, 0, 0); |
| 5749 } |