Mercurial > hg > xemacs-beta
annotate src/window.c @ 5649:d026b665014f
Actually obey POSIX rules in #'posix-string-match, don't ignore them.
src/ChangeLog addition:
2012-04-25 Aidan Kehoe <kehoea@parhasard.net>
* search.c (string_match_1): Actually use the POSIX argument here,
pass it to compile_pattern(). Thank you for the bug report, Ilya
Shlyakhter!
tests/ChangeLog addition:
2012-04-25 Aidan Kehoe <kehoea@parhasard.net>
* automated/regexp-tests.el: Check that #'posix-string-match
actually returns the longest match; thank you Ilya Shlyakhter in
jn1j8t$ujq$1@dough.gmane.org !
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Wed, 25 Apr 2012 20:25:33 +0100 |
| parents | 3fde0e346ad7 |
| children | a1808d52a34a |
| 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 | |
|
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9 XEmacs is free software: you can redistribute it and/or modify it |
| 428 | 10 under the terms of the GNU General Public License as published by the |
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11 Free Software Foundation, either version 3 of the License, or (at your |
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12 option) any later version. |
| 428 | 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 | |
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20 along with XEmacs. If not, see <http://www.gnu.org/licenses/>. */ |
| 428 | 21 |
| 22 /* Synched up with: FSF 19.30. */ | |
| 23 /* Beginning to diverge significantly. */ | |
| 24 | |
| 853 | 25 /* Authorship: |
| 26 | |
| 27 Based on code from pre-release FSF 19, c. 1991. | |
| 28 Significantly reworked by Chuck Thompson, 1993-1996. | |
| 29 window mirror stuff added by Chuck Thompson c. 1993. | |
| 30 various cleanup by Ben Wing c. 1995 (window slots, window init code, | |
| 31 memory usage, synch. up to FSF 19.30, other). | |
| 32 Unknown work by Andy Piper. | |
| 33 new window-width/height fns. by Ben Wing, Mar 2000. */ | |
| 34 | |
| 428 | 35 /* This file has been Mule-ized. */ |
| 36 | |
| 37 #include <config.h> | |
| 38 #include "lisp.h" | |
| 39 | |
| 40 #include "buffer.h" | |
| 800 | 41 #include "commands.h" |
| 872 | 42 #include "device-impl.h" |
| 800 | 43 #include "elhash.h" |
| 428 | 44 #include "faces.h" |
| 872 | 45 #include "frame-impl.h" |
| 800 | 46 #include "glyphs.h" |
| 47 #include "gutter.h" | |
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48 #include "fontcolor.h" |
| 428 | 49 #include "redisplay.h" |
| 872 | 50 #include "window-impl.h" |
| 428 | 51 |
| 1149 | 52 Lisp_Object Qwindowp, Qwindow_live_p; |
| 428 | 53 Lisp_Object Qdisplay_buffer; |
| 54 | |
| 55 #ifdef MEMORY_USAGE_STATS | |
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56 Lisp_Object Qface_cache, Qglyph_cache, Qline_start_cache, Qredisplay_structs; |
| 428 | 57 #ifdef HAVE_SCROLLBARS |
| 58 Lisp_Object Qscrollbar_instances; | |
| 59 #endif | |
| 60 #endif | |
| 61 | |
| 1979 | 62 extern int allow_deletion_of_last_visible_frame; |
| 63 | |
| 428 | 64 EXFUN (Fnext_window, 4); |
| 65 | |
| 66 static int window_pixel_width_to_char_width (struct window *w, | |
| 67 int pixel_width, | |
| 68 int include_margins_p); | |
| 69 static int window_char_width_to_pixel_width (struct window *w, | |
| 70 int char_width, | |
| 71 int include_margins_p); | |
| 72 static int window_pixel_height_to_char_height (struct window *w, | |
| 73 int pixel_height, | |
| 74 int include_gutters_p); | |
| 75 static int window_char_height_to_pixel_height (struct window *w, | |
| 76 int char_height, | |
| 77 int include_gutters_p); | |
| 444 | 78 static void change_window_height (Lisp_Object window, int delta, |
| 79 Lisp_Object horizontalp, int inpixels); | |
| 428 | 80 |
| 81 /* Thickness of shadow border around 3d modelines. */ | |
| 82 Lisp_Object Vmodeline_shadow_thickness; | |
| 83 | |
| 84 /* Whether vertical dividers are draggable and displayed */ | |
| 85 Lisp_Object Vvertical_divider_always_visible_p; | |
| 86 | |
| 87 /* Whether a modeline should be displayed. */ | |
| 88 Lisp_Object Vhas_modeline_p; | |
| 89 | |
| 90 /* Thickness of shadow border around vertical dividers. */ | |
| 91 Lisp_Object Vvertical_divider_shadow_thickness; | |
| 92 | |
| 93 /* Divider surface width (not counting 3-d borders) */ | |
| 94 Lisp_Object Vvertical_divider_line_width; | |
| 95 | |
| 442 | 96 /* Spacing between outer edge of divider border and window edge */ |
| 428 | 97 Lisp_Object Vvertical_divider_spacing; |
| 98 | |
| 99 /* How much to scroll by per-line. */ | |
| 100 Lisp_Object Vwindow_pixel_scroll_increment; | |
| 101 | |
| 102 /* Scroll if point lands on the bottom line and that line is partially | |
| 103 clipped. */ | |
| 104 int scroll_on_clipped_lines; | |
| 105 | |
| 106 /* The minibuffer window of the selected frame. | |
| 107 Note that you cannot test for minibufferness of an arbitrary window | |
| 108 by comparing against this; but you can test for minibufferness of | |
| 109 the selected window. */ | |
| 110 Lisp_Object minibuf_window; | |
| 111 | |
| 112 /* Non-nil means it is the window for C-M-v to scroll | |
| 113 when the minibuffer is selected. */ | |
| 114 Lisp_Object Vminibuffer_scroll_window; | |
| 115 | |
| 116 /* Non-nil means this is the buffer whose window C-M-v should scroll. */ | |
| 117 Lisp_Object Vother_window_scroll_buffer; | |
| 118 | |
| 119 /* Non-nil means it's the function to call to display temp buffers. */ | |
| 120 Lisp_Object Vtemp_buffer_show_function; | |
| 121 | |
| 122 /* If a window gets smaller than either of these, it is removed. */ | |
| 458 | 123 Fixnum window_min_height; |
| 124 Fixnum window_min_width; | |
| 428 | 125 |
| 126 /* Number of lines of continuity in scrolling by screenfuls. */ | |
| 458 | 127 Fixnum next_screen_context_lines; |
| 428 | 128 |
| 1149 | 129 Lisp_Object Qcurrent_window_configuration, Qset_window_configuration; |
| 428 | 130 |
| 707 | 131 Lisp_Object Qtruncate_partial_width_windows; |
| 132 | |
| 428 | 133 #define SET_LAST_MODIFIED(w, cache_too) \ |
| 134 do { \ | |
| 135 (w)->last_modified[CURRENT_DISP] = Qzero; \ | |
| 136 (w)->last_modified[DESIRED_DISP] = Qzero; \ | |
| 137 (w)->last_modified[CMOTION_DISP] = Qzero; \ | |
| 138 if (cache_too) \ | |
| 139 (w)->line_cache_last_updated = Qzero; \ | |
| 140 } while (0) | |
| 141 | |
| 142 #define SET_LAST_FACECHANGE(w) \ | |
| 143 do { \ | |
| 144 (w)->last_facechange[CURRENT_DISP] = Qzero; \ | |
| 145 (w)->last_facechange[DESIRED_DISP] = Qzero; \ | |
| 146 (w)->last_facechange[CMOTION_DISP] = Qzero; \ | |
| 147 } while (0) | |
| 148 | |
| 149 | |
| 1204 | 150 |
| 151 static const struct memory_description int_description_1[] = { | |
| 152 { XD_END } | |
| 153 }; | |
| 154 | |
| 155 static const struct sized_memory_description int_description = { | |
| 156 sizeof (int), | |
| 157 int_description_1 | |
| 158 }; | |
| 159 | |
| 160 static const struct memory_description int_dynarr_description_1[] = { | |
| 161 XD_DYNARR_DESC (int_dynarr, &int_description), | |
| 162 { XD_END } | |
| 163 }; | |
| 164 | |
| 165 static const struct sized_memory_description int_dynarr_description = { | |
| 166 sizeof (int_dynarr), | |
| 167 int_dynarr_description_1 | |
| 168 }; | |
| 169 | |
| 170 static const struct memory_description face_cachel_description_1[] = { | |
| 2367 | 171 { XD_BLOCK_PTR, offsetof (face_cachel, merged_faces), |
| 2551 | 172 1, { &int_dynarr_description } }, |
| 1204 | 173 { XD_LISP_OBJECT, offsetof (face_cachel, face) }, |
| 174 { XD_LISP_OBJECT, offsetof (face_cachel, foreground) }, | |
| 175 { XD_LISP_OBJECT, offsetof (face_cachel, background) }, | |
| 176 { XD_LISP_OBJECT_ARRAY, offsetof (face_cachel, font), NUM_LEADING_BYTES }, | |
| 177 { XD_LISP_OBJECT, offsetof (face_cachel, display_table) }, | |
| 178 { XD_LISP_OBJECT, offsetof (face_cachel, background_pixmap) }, | |
| 179 { XD_END } | |
| 180 }; | |
| 181 | |
| 3092 | 182 #ifdef NEW_GC |
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183 DEFINE_DUMPABLE_INTERNAL_LISP_OBJECT ("face-cachel", face_cachel, |
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184 0, face_cachel_description_1, |
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185 Lisp_Face_Cachel); |
| 3092 | 186 #endif /* NEW_GC */ |
| 187 | |
| 1204 | 188 static const struct sized_memory_description face_cachel_description = { |
| 189 sizeof (face_cachel), | |
| 190 face_cachel_description_1 | |
| 191 }; | |
| 192 | |
| 193 static const struct memory_description face_cachel_dynarr_description_1[] = { | |
| 3092 | 194 #ifdef NEW_GC |
| 195 XD_LISP_DYNARR_DESC (face_cachel_dynarr, &face_cachel_description), | |
| 196 #else /* not NEW_GC */ | |
| 1204 | 197 XD_DYNARR_DESC (face_cachel_dynarr, &face_cachel_description), |
| 3092 | 198 #endif /* not NEW_GC */ |
| 1204 | 199 { XD_END } |
| 200 }; | |
| 201 | |
| 3092 | 202 #ifdef NEW_GC |
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203 DEFINE_DUMPABLE_INTERNAL_LISP_OBJECT ("face-cachel-dynarr", face_cachel_dynarr, |
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204 0, face_cachel_dynarr_description_1, |
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205 face_cachel_dynarr); |
| 3092 | 206 #else /* not NEW_GC */ |
| 1204 | 207 static const struct sized_memory_description face_cachel_dynarr_description = { |
| 208 sizeof (face_cachel_dynarr), | |
| 209 face_cachel_dynarr_description_1 | |
| 210 }; | |
| 3092 | 211 #endif /* not NEW_GC */ |
| 1204 | 212 |
| 213 static const struct memory_description glyph_cachel_description_1[] = { | |
| 214 { XD_LISP_OBJECT, offsetof (glyph_cachel, glyph) }, | |
| 215 { XD_END } | |
| 216 }; | |
| 217 | |
| 3092 | 218 #ifdef NEW_GC |
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219 DEFINE_DUMPABLE_INTERNAL_LISP_OBJECT ("glyph-cachel", glyph_cachel, |
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220 0, glyph_cachel_description_1, |
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221 Lisp_Glyph_Cachel); |
| 3092 | 222 #endif /* NEW_GC */ |
| 223 | |
| 1204 | 224 static const struct sized_memory_description glyph_cachel_description = { |
| 225 sizeof (glyph_cachel), | |
| 226 glyph_cachel_description_1 | |
| 227 }; | |
| 228 | |
| 229 static const struct memory_description glyph_cachel_dynarr_description_1[] = { | |
| 3092 | 230 #ifdef NEW_GC |
| 231 XD_LISP_DYNARR_DESC (glyph_cachel_dynarr, &glyph_cachel_description), | |
| 232 #else /* not NEW_GC */ | |
| 1204 | 233 XD_DYNARR_DESC (glyph_cachel_dynarr, &glyph_cachel_description), |
| 3092 | 234 #endif /* not NEW_GC */ |
| 1204 | 235 { XD_END } |
| 236 }; | |
| 237 | |
| 3092 | 238 #ifdef NEW_GC |
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239 DEFINE_DUMPABLE_INTERNAL_LISP_OBJECT ("glyph-cachel-dynarr", |
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240 glyph_cachel_dynarr, 0, |
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241 glyph_cachel_dynarr_description_1, |
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242 glyph_cachel_dynarr); |
| 3092 | 243 #else /* not NEW_GC */ |
| 1204 | 244 static const struct sized_memory_description glyph_cachel_dynarr_description = { |
| 245 sizeof (glyph_cachel_dynarr), | |
| 246 glyph_cachel_dynarr_description_1 | |
| 247 }; | |
| 3092 | 248 #endif /* not NEW_GC */ |
| 1204 | 249 |
| 250 static const struct memory_description line_start_cache_description_1[] = { | |
| 251 { XD_END } | |
| 252 }; | |
| 253 | |
| 254 static const struct sized_memory_description line_start_cache_description = { | |
| 255 sizeof (line_start_cache), | |
| 256 line_start_cache_description_1 | |
| 257 }; | |
| 258 | |
| 259 static const struct memory_description line_start_cache_dynarr_description_1[] = { | |
| 260 XD_DYNARR_DESC (line_start_cache_dynarr, &line_start_cache_description), | |
| 261 { XD_END } | |
| 262 }; | |
| 263 | |
| 264 static const struct sized_memory_description line_start_cache_dynarr_description = { | |
| 265 sizeof (line_start_cache_dynarr), | |
| 266 line_start_cache_dynarr_description_1 | |
| 267 }; | |
| 268 | |
| 269 static const struct memory_description window_description [] = { | |
| 270 #define WINDOW_SLOT(slot) { XD_LISP_OBJECT, offsetof (struct window, slot) }, | |
| 271 #define WINDOW_SLOT_ARRAY(slot, size) \ | |
| 272 { XD_LISP_OBJECT_ARRAY, offsetof (struct window, slot), size }, | |
| 273 #include "winslots.h" | |
| 274 | |
| 3092 | 275 #ifdef NEW_GC |
| 276 { XD_LISP_OBJECT, offsetof (struct window, face_cachels) }, | |
| 277 { XD_LISP_OBJECT, offsetof (struct window, glyph_cachels) }, | |
| 278 #else /* not NEW_GC */ | |
| 2367 | 279 { XD_BLOCK_PTR, offsetof (struct window, face_cachels), |
| 2551 | 280 1, { &face_cachel_dynarr_description } }, |
| 2367 | 281 { XD_BLOCK_PTR, offsetof (struct window, glyph_cachels), |
| 2551 | 282 1, { &glyph_cachel_dynarr_description } }, |
| 3092 | 283 #endif /* not NEW_GC */ |
| 2367 | 284 { XD_BLOCK_PTR, offsetof (struct window, line_start_cache), |
| 2775 | 285 1, { &line_start_cache_dynarr_description }, XD_FLAG_NO_KKCC }, |
| 1204 | 286 { XD_END } |
| 287 }; | |
| 428 | 288 |
| 289 static Lisp_Object | |
| 290 mark_window (Lisp_Object obj) | |
| 291 { | |
| 292 struct window *window = XWINDOW (obj); | |
| 293 | |
| 294 mark_face_cachels (window->face_cachels); | |
| 295 mark_glyph_cachels (window->glyph_cachels); | |
| 296 | |
| 617 | 297 #define WINDOW_SLOT(slot) mark_object (window->slot); |
| 428 | 298 #include "winslots.h" |
| 299 | |
| 300 return Qnil; | |
| 301 } | |
| 302 | |
| 303 static void | |
| 2286 | 304 print_window (Lisp_Object obj, Lisp_Object printcharfun, |
| 305 int UNUSED (escapeflag)) | |
| 428 | 306 { |
| 4846 | 307 Lisp_Object buf; |
| 308 | |
| 428 | 309 if (print_readably) |
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310 printing_unreadable_lisp_object (obj, 0); |
| 428 | 311 |
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312 write_ascstring (printcharfun, "#<window"); |
| 4846 | 313 buf = XWINDOW_BUFFER (obj); |
| 314 if (EQ (buf, Qt)) | |
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315 write_ascstring (printcharfun, " during creation"); |
| 4846 | 316 else if (!NILP (buf)) |
| 428 | 317 { |
| 4846 | 318 |
| 319 Lisp_Object name = XBUFFER (buf)->name; | |
| 800 | 320 write_fmt_string_lisp (printcharfun, " on %S", 1, name); |
| 428 | 321 } |
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322 write_fmt_string (printcharfun, " 0x%x>", LISP_OBJECT_UID (obj)); |
| 428 | 323 } |
| 324 | |
| 325 static void | |
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326 finalize_window (Lisp_Object obj) |
| 428 | 327 { |
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328 struct window *w = XWINDOW (obj); |
| 428 | 329 |
| 330 if (w->line_start_cache) | |
| 331 { | |
| 332 Dynarr_free (w->line_start_cache); | |
| 333 w->line_start_cache = 0; | |
| 334 } | |
| 335 | |
| 336 if (w->face_cachels) | |
| 337 { | |
| 338 int i; | |
| 339 | |
| 340 for (i = 0; i < Dynarr_length (w->face_cachels); i++) | |
| 341 { | |
| 342 struct face_cachel *cachel = Dynarr_atp (w->face_cachels, i); | |
| 343 if (cachel->merged_faces) | |
| 344 { | |
| 345 Dynarr_free (cachel->merged_faces); | |
| 346 cachel->merged_faces = 0; | |
| 347 } | |
| 348 } | |
| 349 Dynarr_free (w->face_cachels); | |
| 350 w->face_cachels = 0; | |
| 351 } | |
| 352 | |
| 353 if (w->glyph_cachels) | |
| 354 { | |
| 355 Dynarr_free (w->glyph_cachels); | |
| 356 w->glyph_cachels = 0; | |
| 357 } | |
| 358 } | |
| 359 | |
| 844 | 360 /* These caches map buffers to markers. They are key-weak so that entries |
| 361 remain around as long as the buffers do. */ | |
| 362 | |
| 363 static Lisp_Object | |
| 364 make_saved_buffer_point_cache (void) | |
| 365 { | |
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366 return make_lisp_hash_table (20, HASH_TABLE_KEY_WEAK, Qeq); |
| 844 | 367 } |
| 368 | |
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369 DEFINE_NODUMP_LISP_OBJECT ("window", window, |
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370 mark_window, print_window, finalize_window, |
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371 0, 0, window_description, struct window); |
| 428 | 372 |
| 373 #define INIT_DISP_VARIABLE(field, initialization) \ | |
| 374 p->field[CURRENT_DISP] = initialization; \ | |
| 375 p->field[DESIRED_DISP] = initialization; \ | |
| 376 p->field[CMOTION_DISP] = initialization; | |
| 377 | |
| 378 /* We have an implicit assertion that the first two elements (default | |
| 379 and modeline faces) are always present in the face_element_cache. | |
| 380 Normally redisplay ensures this. However, it is possible for a | |
| 381 window to get created and functions which reference these values | |
| 382 called before redisplay works with the window for the first time. | |
| 383 All callers of allocate_window should therefore call | |
| 384 reset_face_cachels on the created window. We can't do it | |
| 385 here because the window must have its frame pointer set or | |
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386 reset_face_cachels will fail. |
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387 A similar requirement holds for reset_glyph_cachels. We *could* do |
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388 that here (there's no reference to the frame pointer in that function), |
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389 but we may as well have the same discipline. */ |
| 428 | 390 Lisp_Object |
| 391 allocate_window (void) | |
| 392 { | |
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393 Lisp_Object obj = ALLOC_NORMAL_LISP_OBJECT (window); |
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394 struct window *p = XWINDOW (obj); |
| 617 | 395 |
| 396 #define WINDOW_SLOT(slot) p->slot = Qnil; | |
| 397 #include "winslots.h" | |
| 398 | |
| 428 | 399 INIT_DISP_VARIABLE (start, Fmake_marker ()); |
| 400 INIT_DISP_VARIABLE (pointm, Fmake_marker ()); | |
| 401 p->sb_point = Fmake_marker (); | |
| 844 | 402 p->saved_point_cache = make_saved_buffer_point_cache (); |
| 403 p->saved_last_window_start_cache = make_saved_buffer_point_cache (); | |
| 428 | 404 p->use_time = Qzero; |
| 405 INIT_DISP_VARIABLE (last_modified, Qzero); | |
| 406 INIT_DISP_VARIABLE (last_point, Fmake_marker ()); | |
| 407 INIT_DISP_VARIABLE (last_start, Fmake_marker ()); | |
| 408 INIT_DISP_VARIABLE (last_facechange, Qzero); | |
| 3092 | 409 #ifdef NEW_GC |
| 410 p->face_cachels = Dynarr_lisp_new (face_cachel, | |
| 411 &lrecord_face_cachel_dynarr, | |
| 412 &lrecord_face_cachel); | |
| 413 p->glyph_cachels = Dynarr_lisp_new (glyph_cachel, | |
| 414 &lrecord_glyph_cachel_dynarr, | |
| 415 &lrecord_glyph_cachel); | |
| 416 #else /* not NEW_GC */ | |
| 428 | 417 p->face_cachels = Dynarr_new (face_cachel); |
| 418 p->glyph_cachels = Dynarr_new (glyph_cachel); | |
| 3092 | 419 #endif /* not NEW_GC */ |
| 428 | 420 p->line_start_cache = Dynarr_new (line_start_cache); |
| 450 | 421 p->subwindow_instance_cache = make_image_instance_cache_hash_table (); |
| 422 | |
| 428 | 423 p->line_cache_last_updated = Qzero; |
| 442 | 424 |
| 428 | 425 p->windows_changed = 1; |
| 426 p->shadow_thickness_changed = 1; | |
| 427 | |
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428 return obj; |
| 428 | 429 } |
| 430 #undef INIT_DISP_VARIABLE | |
| 431 | |
| 617 | 432 /************************************************************************/ |
| 433 /* Window mirror structure */ | |
| 434 /************************************************************************/ | |
| 435 | |
| 428 | 436 /* |
| 437 * The redisplay structures used to be stored with each window. While | |
| 438 * they are logically something associated with frames they can't be | |
| 439 * stored there with a redisplay which handles variable height lines. | |
| 440 * Lines in horizontally split windows might not line up. So they get | |
| 441 * stored with the windows. | |
| 442 * | |
| 443 * The problem with this is window configurations. When restoring a | |
| 444 * window configuration it now becomes problematic to do an | |
| 445 * incremental redisplay. The solution is to store the redisplay | |
| 446 * structures with the frame as they should be but laid out in the | |
| 447 * same manner as the window structure. Thus is born the window | |
| 448 * mirror. | |
| 449 * | |
| 450 * It also becomes a convenient place to stick scrollbar instances | |
| 451 * since they extrapolate out to having the same problem described for | |
| 452 * the display structures. | |
| 453 */ | |
| 454 | |
| 617 | 455 /* NOTE: The window-mirror structure formerly was not a Lisp object, and |
| 456 marking was handled specially. I've gotten recurring crashes, however, | |
| 457 using the mouse wheel under Windows, where either the window mirror | |
| 458 accessed through a scrollbar instance, or the frame pointed to by that | |
| 459 window mirror, gets garbaged. Things are tricky under windows because | |
| 460 the scrollbar instances are stored in HWND-specific data. Furthermore, | |
| 461 we have scrollbar-instance caches to complicate things. Both of these | |
| 462 make it very difficult (for me at least, not being intimately familiar | |
| 463 with the redisplay code) to track exactly when and where a particular | |
| 464 window mirror or scrollbar instance has pointers to it, or whether a | |
| 465 window mirror might have a dead frame or buffer in it (i.e. not | |
| 466 necessarily gc-protected by being on a global list). By far the safest | |
| 467 thing, then, is to make both structures Lisp objects and not explicitly | |
| 468 xfree() them. This should make no practical difference in memory usage | |
| 469 because neither structure is created very often (only when windows are | |
| 470 created or deleted). --ben */ | |
| 471 | |
| 1204 | 472 static const struct memory_description window_mirror_description [] = { |
| 473 { XD_LISP_OBJECT, offsetof (struct window_mirror, frame) }, | |
| 474 { XD_LISP_OBJECT, offsetof (struct window_mirror, next) }, | |
| 475 { XD_LISP_OBJECT, offsetof (struct window_mirror, hchild) }, | |
| 476 { XD_LISP_OBJECT, offsetof (struct window_mirror, vchild) }, | |
| 477 | |
| 2367 | 478 { XD_BLOCK_PTR, offsetof (struct window_mirror, current_display_lines), |
| 2551 | 479 1, { &display_line_dynarr_description } }, |
| 2367 | 480 { XD_BLOCK_PTR, offsetof (struct window_mirror, desired_display_lines), |
| 2551 | 481 1, { &display_line_dynarr_description } }, |
| 1204 | 482 |
| 483 { XD_LISP_OBJECT, offsetof (struct window_mirror, buffer) }, | |
| 484 | |
| 485 #ifdef HAVE_SCROLLBARS | |
| 486 { XD_LISP_OBJECT, offsetof (struct window_mirror, | |
| 487 scrollbar_vertical_instance) }, | |
| 488 { XD_LISP_OBJECT, offsetof (struct window_mirror, | |
| 489 scrollbar_horizontal_instance) }, | |
| 490 #endif /* HAVE_SCROLLBARS */ | |
| 491 | |
| 934 | 492 { XD_END } |
| 493 }; | |
| 494 | |
| 617 | 495 static Lisp_Object |
| 496 mark_window_mirror (Lisp_Object obj) | |
| 497 { | |
| 498 struct window_mirror *mir = XWINDOW_MIRROR (obj); | |
| 499 | |
| 500 if (mir->current_display_lines) | |
| 501 mark_redisplay_structs (mir->current_display_lines); | |
| 502 if (mir->desired_display_lines) | |
| 503 mark_redisplay_structs (mir->desired_display_lines); | |
| 504 | |
| 505 if (mir->hchild) | |
| 506 mark_object (wrap_window_mirror (mir->hchild)); | |
| 507 if (mir->vchild) | |
| 508 mark_object (wrap_window_mirror (mir->vchild)); | |
| 509 | |
| 510 if (mir->frame) | |
| 511 mark_object (wrap_frame (mir->frame)); | |
| 512 if (mir->buffer) | |
| 513 mark_object (wrap_buffer (mir->buffer)); | |
| 514 | |
| 515 #ifdef HAVE_SCROLLBARS | |
| 516 if (mir->scrollbar_vertical_instance) | |
| 517 mark_object (wrap_scrollbar_instance (mir->scrollbar_vertical_instance)); | |
| 518 if (mir->scrollbar_horizontal_instance) | |
| 519 mark_object (wrap_scrollbar_instance (mir->scrollbar_horizontal_instance)); | |
| 520 #endif /* HAVE_SCROLLBARS */ | |
| 521 if (mir->next) | |
| 522 return wrap_window_mirror (mir->next); | |
| 523 else | |
| 524 return Qnil; | |
| 525 } | |
| 526 | |
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527 DEFINE_NODUMP_INTERNAL_LISP_OBJECT ("window-mirror", window_mirror, |
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528 mark_window_mirror, |
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529 window_mirror_description, |
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530 struct window_mirror); |
| 617 | 531 |
| 428 | 532 /* Create a new window mirror structure and associated redisplay |
| 533 structs. */ | |
| 534 static struct window_mirror * | |
| 535 new_window_mirror (struct frame *f) | |
| 536 { | |
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537 Lisp_Object obj = ALLOC_NORMAL_LISP_OBJECT (window_mirror); |
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538 struct window_mirror *t = XWINDOW_MIRROR (obj); |
| 428 | 539 |
| 540 t->frame = f; | |
| 541 t->current_display_lines = Dynarr_new (display_line); | |
| 542 t->desired_display_lines = Dynarr_new (display_line); | |
| 543 | |
| 544 return t; | |
| 545 } | |
| 546 | |
| 547 /* Synchronize the mirror structure with a given window structure. | |
| 548 This is normally called from update_frame_window_mirror with a | |
| 549 starting window of f->root_window. */ | |
| 550 static struct window_mirror * | |
| 551 update_mirror_internal (Lisp_Object win, struct window_mirror *mir) | |
| 552 { | |
| 553 if (NILP (win)) | |
| 554 { | |
| 555 if (mir) | |
| 556 { | |
| 557 free_window_mirror (mir); | |
| 558 mir = NULL; | |
| 559 } | |
| 560 return mir; | |
| 561 } | |
| 562 else | |
| 563 if (!mir) | |
| 564 mir = new_window_mirror (XFRAME (XWINDOW (win)->frame)); | |
| 565 | |
| 1204 | 566 mir->next = update_mirror_internal (XWINDOW (win)->next, mir->next); |
| 428 | 567 mir->hchild = update_mirror_internal (XWINDOW (win)->hchild, mir->hchild); |
| 568 mir->vchild = update_mirror_internal (XWINDOW (win)->vchild, mir->vchild); | |
| 569 | |
| 570 /* | |
| 571 * If the redisplay structs are not empty and the mirror has | |
| 572 * children, then this mirror structure was formerly being used for | |
| 573 * display but is no longer. Reset its current display structs so | |
| 574 * that redisplay doesn't accidentally think they are accurate if it | |
| 575 * is later used for display purposes once again. Also, mark the | |
| 576 * scrollbar instance as not active. | |
| 577 */ | |
| 578 if (mir->vchild || mir->hchild) | |
| 579 { | |
| 580 /* The redisplay structures are big. Leaving them around in | |
| 581 non-leaf windows can add up to a lot of wasted space. So | |
| 582 don't do it. */ | |
| 583 free_display_structs (mir); | |
| 584 mir->current_display_lines = Dynarr_new (display_line); | |
| 585 mir->desired_display_lines = Dynarr_new (display_line); | |
| 586 | |
| 587 #ifdef HAVE_SCROLLBARS | |
| 588 update_window_scrollbars (XWINDOW (win), mir, 0, 0); | |
| 589 #endif | |
| 590 mir->buffer = NULL; | |
| 591 } | |
| 592 | |
| 593 return mir; | |
| 594 } | |
| 595 | |
| 596 /* Given a window mirror, determine which real window it contains the | |
| 597 redisplay structures for. */ | |
| 598 static Lisp_Object | |
| 599 real_window_internal (Lisp_Object win, struct window_mirror *rmir, | |
| 600 struct window_mirror *mir) | |
| 601 { | |
| 602 for (; !NILP (win) && rmir ; win = XWINDOW (win)->next, rmir = rmir->next) | |
| 603 { | |
| 604 if (mir == rmir) | |
| 605 return win; | |
| 606 if (!NILP (XWINDOW (win)->vchild)) | |
| 607 { | |
| 608 Lisp_Object retval = | |
| 609 real_window_internal (XWINDOW (win)->vchild, rmir->vchild, mir); | |
| 610 if (!NILP (retval)) | |
| 611 return retval; | |
| 612 } | |
| 613 if (!NILP (XWINDOW (win)->hchild)) | |
| 614 { | |
| 615 Lisp_Object retval = | |
| 616 real_window_internal (XWINDOW (win)->hchild, rmir->hchild, mir); | |
| 617 if (!NILP (retval)) | |
| 618 return retval; | |
| 619 } | |
| 620 } | |
| 621 | |
| 622 return Qnil; | |
| 623 } | |
| 624 | |
| 625 /* Given a real window, find the mirror structure which contains its | |
| 626 redisplay structures. */ | |
| 627 static struct window_mirror * | |
| 628 find_window_mirror_internal (Lisp_Object win, struct window_mirror *rmir, | |
| 629 struct window *w) | |
| 630 { | |
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631 for (; !NILP (win) && rmir; win = XWINDOW (win)->next, rmir = rmir->next) |
| 428 | 632 { |
| 633 if (w == XWINDOW (win)) | |
| 634 return rmir; | |
| 635 | |
| 636 if (!NILP (XWINDOW (win)->vchild)) | |
| 637 { | |
| 638 struct window_mirror *retval = | |
| 639 find_window_mirror_internal (XWINDOW (win)->vchild, | |
| 640 rmir->vchild, w); | |
| 641 if (retval) return retval; | |
| 642 } | |
| 643 | |
| 644 if (!NILP (XWINDOW (win)->hchild)) | |
| 645 { | |
| 646 struct window_mirror *retval = | |
| 647 find_window_mirror_internal (XWINDOW (win)->hchild, | |
| 648 rmir->hchild, w); | |
| 649 if (retval) return retval; | |
| 650 } | |
| 651 } | |
| 652 | |
| 653 return 0; | |
| 654 } | |
| 655 | |
| 656 /* Update the mirror structure for the given frame. */ | |
| 657 void | |
| 658 update_frame_window_mirror (struct frame *f) | |
| 659 { | |
| 617 | 660 f->root_mirror = |
| 661 wrap_window_mirror (update_mirror_internal | |
| 662 (f->root_window, | |
| 663 NILP (f->root_mirror) ? 0 : | |
| 664 XWINDOW_MIRROR (f->root_mirror))); | |
| 428 | 665 f->mirror_dirty = 0; |
| 666 } | |
| 667 | |
| 668 /* Free a given mirror structure along with all of its children as | |
| 669 well as their associated display structures. */ | |
| 670 void | |
| 671 free_window_mirror (struct window_mirror *mir) | |
| 672 { | |
| 673 while (mir) | |
| 674 { | |
| 675 if (mir->hchild) free_window_mirror (mir->hchild); | |
| 676 if (mir->vchild) free_window_mirror (mir->vchild); | |
| 677 #ifdef HAVE_SCROLLBARS | |
| 678 release_window_mirror_scrollbars (mir); | |
| 679 #endif | |
| 680 free_display_structs (mir); | |
| 681 mir = mir->next; | |
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682 /* not worth calling free_normal_lisp_object() -- window mirrors |
| 617 | 683 are not created that frequently and it's dangerous. we don't |
| 684 know for sure that there aren't other pointers around -- e.g. | |
| 685 in a scrollbar instance. */ | |
| 428 | 686 } |
| 687 } | |
| 688 | |
| 689 /* Given a mirror structure, return the window it mirrors. Calls | |
| 690 real_window_internal to do most of the work. */ | |
| 691 Lisp_Object | |
| 692 real_window (struct window_mirror *mir, int no_abort) | |
| 693 { | |
| 617 | 694 Lisp_Object retval = |
| 695 real_window_internal (mir->frame->root_window, | |
| 696 XWINDOW_MIRROR (mir->frame->root_mirror), mir); | |
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697 assert (!NILP (retval) || no_abort); |
| 428 | 698 |
| 699 return retval; | |
| 700 } | |
| 701 | |
| 702 /* Given a real window, return its mirror structure. Calls | |
| 703 find_window_mirror_internal to do all of the work. */ | |
| 704 struct window_mirror * | |
| 705 find_window_mirror (struct window *w) | |
| 706 { | |
| 707 struct frame *f = XFRAME (w->frame); | |
| 708 if (f->mirror_dirty) | |
| 709 update_frame_window_mirror (f); | |
| 617 | 710 return find_window_mirror_internal (f->root_window, |
| 711 XWINDOW_MIRROR (f->root_mirror), w); | |
| 428 | 712 } |
| 713 | |
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714 /* Given a real window, return its mirror structure, if it exists. |
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715 Don't do any updating. */ |
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716 static struct window_mirror * |
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717 find_window_mirror_maybe (struct window *w) |
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718 { |
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719 struct frame *f = XFRAME (w->frame); |
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720 if (!WINDOW_MIRRORP (f->root_mirror)) |
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721 return 0; |
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722 return find_window_mirror_internal (f->root_window, |
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723 XWINDOW_MIRROR (f->root_mirror), w); |
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724 } |
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725 |
| 428 | 726 /***************************************************************************** |
| 727 find_window_by_pixel_pos | |
| 728 | |
| 729 Given a pixel position relative to a frame, find the window at that | |
| 730 position. | |
| 731 ****************************************************************************/ | |
| 732 struct window * | |
| 733 find_window_by_pixel_pos (int pix_x, int pix_y, Lisp_Object win) | |
| 734 { | |
| 735 if (NILP (win)) | |
| 736 return 0; | |
| 737 | |
| 738 for (; !NILP (win); win = XWINDOW (win)->next) | |
| 739 { | |
| 740 struct window *w; | |
| 741 | |
| 742 if (!NILP (XWINDOW (win)->vchild)) | |
| 743 { | |
| 744 w = find_window_by_pixel_pos (pix_x, pix_y, XWINDOW (win)->vchild); | |
| 745 if (w) return w; | |
| 746 } | |
| 747 if (!NILP (XWINDOW (win)->hchild)) | |
| 748 { | |
| 749 w = find_window_by_pixel_pos (pix_x, pix_y, XWINDOW (win)->hchild); | |
| 750 if (w) return w; | |
| 751 } | |
| 752 w = XWINDOW (win); | |
| 753 if (pix_x >= WINDOW_LEFT (w) | |
| 754 && pix_x <= WINDOW_RIGHT (w) | |
| 755 && pix_y >= WINDOW_TOP (w) | |
| 756 && pix_y <= WINDOW_BOTTOM (w)) | |
| 757 return w; | |
| 758 } | |
| 759 return NULL; | |
| 760 } | |
| 761 | |
| 762 /* Return a pointer to the display structures for the given window. */ | |
| 763 display_line_dynarr * | |
| 764 window_display_lines (struct window *w, int which) | |
| 765 { | |
| 766 struct window_mirror *t; | |
| 767 | |
| 768 t = find_window_mirror (w); | |
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769 assert (t); |
| 428 | 770 |
| 771 if (which == CURRENT_DISP) | |
| 772 return t->current_display_lines; | |
| 773 else if (which == DESIRED_DISP) | |
| 774 return t->desired_display_lines; | |
| 775 else if (which == CMOTION_DISP) | |
| 776 /* The CMOTION_DISP display lines are global. */ | |
| 777 return cmotion_display_lines; | |
| 778 else | |
| 2500 | 779 ABORT (); |
| 428 | 780 |
| 781 return 0; /* shut up compiler */ | |
| 782 } | |
| 783 | |
| 784 struct buffer * | |
| 785 window_display_buffer (struct window *w) | |
| 786 { | |
| 787 struct window_mirror *t; | |
| 788 | |
| 789 t = find_window_mirror (w); | |
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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 t = find_window_mirror (w); | |
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801 assert (t); |
| 428 | 802 |
| 803 t->buffer = b; | |
| 804 } | |
| 805 | |
| 806 | |
| 807 /* Determining a window's position based solely on its pixel | |
| 808 positioning doesn't work. Instead, we do it the intelligent way, | |
| 809 by checking its positioning in the window hierarchy. */ | |
| 810 int | |
| 811 window_is_leftmost (struct window *w) | |
| 812 { | |
| 813 Lisp_Object parent, current_ancestor, window; | |
| 814 | |
| 793 | 815 window = wrap_window (w); |
| 428 | 816 |
| 817 parent = XWINDOW (window)->parent; | |
| 818 current_ancestor = window; | |
| 819 | |
| 820 while (!NILP (parent)) | |
| 821 { | |
| 822 if (!NILP (XWINDOW (parent)->hchild) && | |
| 823 !EQ (XWINDOW (parent)->hchild, current_ancestor)) | |
| 824 return 0; | |
| 825 | |
| 826 current_ancestor = parent; | |
| 827 parent = XWINDOW (parent)->parent; | |
| 828 } | |
| 829 | |
| 830 return 1; | |
| 831 } | |
| 832 | |
| 833 int | |
| 834 window_is_rightmost (struct window *w) | |
| 835 { | |
| 836 Lisp_Object parent, current_ancestor, window; | |
| 837 | |
| 793 | 838 window = wrap_window (w); |
| 428 | 839 |
| 840 parent = XWINDOW (window)->parent; | |
| 841 current_ancestor = window; | |
| 842 | |
| 843 while (!NILP (parent)) | |
| 844 { | |
| 845 if (!NILP (XWINDOW (parent)->hchild) | |
| 846 && !NILP (XWINDOW (current_ancestor)->next)) | |
| 847 return 0; | |
| 848 | |
| 849 current_ancestor = parent; | |
| 850 parent = XWINDOW (parent)->parent; | |
| 851 } | |
| 852 | |
| 853 return 1; | |
| 854 } | |
| 855 | |
| 856 static int | |
| 857 window_full_width_p (struct window *w) | |
| 858 { | |
| 859 return window_is_leftmost (w) && window_is_rightmost (w); | |
| 860 } | |
| 861 | |
| 862 int | |
| 863 window_is_highest (struct window *w) | |
| 864 { | |
| 865 Lisp_Object parent, current_ancestor, window; | |
| 866 | |
| 793 | 867 window = wrap_window (w); |
| 428 | 868 |
| 869 parent = XWINDOW (window)->parent; | |
| 870 current_ancestor = window; | |
| 871 | |
| 872 while (!NILP (parent)) | |
| 873 { | |
| 874 if (!NILP (XWINDOW (parent)->vchild) && | |
| 875 !EQ (XWINDOW (parent)->vchild, current_ancestor)) | |
| 876 return 0; | |
| 877 | |
| 878 current_ancestor = parent; | |
| 879 parent = XWINDOW (parent)->parent; | |
| 880 } | |
| 881 | |
| 882 /* This is really to catch the minibuffer but we make it generic in | |
| 883 case we ever change things around to let the minibuffer be on top. */ | |
| 884 if (NILP (XWINDOW (current_ancestor)->prev)) | |
| 885 return 1; | |
| 886 else | |
| 887 return 0; | |
| 888 } | |
| 889 | |
| 890 int | |
| 891 window_is_lowest (struct window *w) | |
| 892 { | |
| 893 Lisp_Object parent, current_ancestor, window; | |
| 894 | |
| 793 | 895 window = wrap_window (w); |
| 428 | 896 |
| 897 parent = XWINDOW (window)->parent; | |
| 898 current_ancestor = window; | |
| 899 | |
| 900 while (!NILP (parent)) | |
| 901 { | |
| 902 if (!NILP (XWINDOW (parent)->vchild) | |
| 903 && !NILP (XWINDOW (current_ancestor)->next)) | |
| 904 return 0; | |
| 905 | |
| 906 current_ancestor = parent; | |
| 907 parent = XWINDOW (parent)->parent; | |
| 908 } | |
| 909 | |
| 910 return 1; | |
| 911 } | |
| 912 | |
| 913 #if 0 /* not currently used */ | |
| 914 | |
| 915 static int | |
| 916 window_full_height_p (struct window *w) | |
| 917 { | |
| 918 return window_is_highest (w) && window_is_lowest (w); | |
| 919 } | |
| 920 | |
| 921 #endif | |
| 922 | |
| 923 int | |
| 924 window_truncation_on (struct window *w) | |
| 925 { | |
| 926 /* Minibuffer windows are never truncated. | |
| 440 | 927 #### is this the right way ? */ |
| 428 | 928 if (MINI_WINDOW_P (w)) |
| 929 return 0; | |
| 930 | |
| 931 /* Horizontally scrolled windows are truncated. */ | |
| 932 if (w->hscroll) | |
| 933 return 1; | |
| 934 | |
| 935 /* If truncate_partial_width_windows is true and the window is not | |
| 936 the full width of the frame it is truncated. */ | |
| 707 | 937 if (!NILP (symbol_value_in_buffer (Qtruncate_partial_width_windows, |
| 938 w->buffer)) | |
| 428 | 939 && !(window_is_leftmost (w) && window_is_rightmost (w))) |
| 940 return 1; | |
| 941 | |
| 942 /* If the window's buffer's value of truncate_lines is non-nil, then | |
| 943 the window is truncated. */ | |
| 944 if (!NILP (XBUFFER (w->buffer)->truncate_lines)) | |
| 945 return 1; | |
| 946 | |
| 947 return 0; | |
| 948 } | |
| 949 | |
| 950 DEFUN ("window-truncated-p", Fwindow_truncated_p, 0, 1, 0, /* | |
| 442 | 951 Returns non-nil if text in the window is truncated. |
| 428 | 952 */ |
| 953 (window)) | |
| 954 { | |
| 955 struct window *w = decode_window (window); | |
| 956 | |
| 957 return window_truncation_on (w) ? Qt : Qnil; | |
| 958 } | |
| 959 | |
| 960 | |
| 961 static int | |
| 962 have_undivided_common_edge (struct window *w_right, void *closure) | |
| 963 { | |
| 964 struct window *w_left = (struct window *) closure; | |
| 965 return (WINDOW_RIGHT (w_left) == WINDOW_LEFT (w_right) | |
| 966 && WINDOW_TOP (w_left) < WINDOW_BOTTOM (w_right) | |
| 967 && WINDOW_TOP (w_right) < WINDOW_BOTTOM (w_left) | |
| 968 #ifdef HAVE_SCROLLBARS | |
| 969 && (NILP (w_right->scrollbar_on_left_p) | |
| 970 || NILP (w_right->vertical_scrollbar_visible_p) | |
| 971 || ZEROP (w_right->scrollbar_width)) | |
| 972 #endif | |
| 973 ); | |
| 974 } | |
| 975 | |
| 976 static int | |
| 977 window_needs_vertical_divider_1 (struct window *w) | |
| 978 { | |
| 979 /* Never if we're on the right */ | |
| 980 if (window_is_rightmost (w)) | |
| 981 return 0; | |
| 982 | |
| 983 /* Always if draggable */ | |
| 984 if (!NILP (w->vertical_divider_always_visible_p)) | |
| 985 return 1; | |
| 986 | |
| 987 #ifdef HAVE_SCROLLBARS | |
| 988 /* Our right scrollbar is enough to separate us at the right */ | |
| 989 if (NILP (w->scrollbar_on_left_p) | |
| 990 && !NILP (w->vertical_scrollbar_visible_p) | |
| 991 && !ZEROP (w->scrollbar_width)) | |
| 992 return 0; | |
| 993 #endif | |
| 994 | |
| 995 /* Ok. to determine whether we need a divider on the left, we must | |
| 996 check that our right neighbor windows have scrollbars on their | |
| 997 left sides. We must check all such windows which have common | |
| 998 left edge with our window's right edge. */ | |
| 999 return map_windows (XFRAME (WINDOW_FRAME (w)), | |
| 1000 have_undivided_common_edge, (void*)w); | |
| 1001 } | |
| 1002 | |
| 1003 int | |
| 1004 window_needs_vertical_divider (struct window *w) | |
| 1005 { | |
| 1006 if (!w->need_vertical_divider_valid_p) | |
| 1007 { | |
| 1008 w->need_vertical_divider_p = | |
| 1009 window_needs_vertical_divider_1 (w); | |
| 1010 w->need_vertical_divider_valid_p = 1; | |
| 1011 } | |
| 1012 return w->need_vertical_divider_p; | |
| 1013 } | |
| 1014 | |
| 1015 /* Called from invalidate_vertical_divider_cache_in_frame */ | |
| 1016 int | |
| 1017 invalidate_vertical_divider_cache_in_window (struct window *w, | |
| 2286 | 1018 void *UNUSED (unused)) |
| 428 | 1019 { |
| 1020 w->need_vertical_divider_valid_p = 0; | |
| 1021 return 0; | |
| 1022 } | |
| 1023 | |
| 1024 /* Calculate width of vertical divider, including its shadows | |
| 1025 and spacing. The returned value is effectively the distance | |
| 1026 between adjacent window edges. This function does not check | |
| 1027 whether a window needs a vertical divider, so the returned | |
| 1028 value is a "theoretical" one */ | |
| 1029 int | |
| 1030 window_divider_width (struct window *w) | |
| 1031 { | |
| 1032 /* the shadow thickness can be negative. This means that the divider | |
| 1033 will have a depressed look */ | |
| 1034 | |
| 1035 if (FRAME_WIN_P (XFRAME (WINDOW_FRAME (w)))) | |
| 1036 return | |
|
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1037 XFIXNUM (w->vertical_divider_line_width) |
|
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changeset
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1038 + 2 * XFIXNUM (w->vertical_divider_spacing) |
|
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1039 + 2 * abs (XFIXNUM (w->vertical_divider_shadow_thickness)); |
| 428 | 1040 else |
|
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1041 return XFIXNUM (w->vertical_divider_line_width) == 0 ? 0 : 1; |
| 428 | 1042 } |
| 1043 | |
| 1044 int | |
| 4932 | 1045 window_scrollbar_width (struct window * USED_IF_SCROLLBARS (w)) |
| 428 | 1046 { |
| 1047 #ifdef HAVE_SCROLLBARS | |
| 1048 if (!WINDOW_WIN_P (w) | |
| 1049 || MINI_WINDOW_P (w) | |
| 1050 || NILP (w->buffer) | |
| 1051 || NILP (w->vertical_scrollbar_visible_p)) | |
| 1052 /* #### when does NILP (w->buffer) happen? */ | |
| 1053 return 0; | |
| 1054 | |
|
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1055 return XFIXNUM (w->scrollbar_width); |
| 428 | 1056 #else |
| 1057 return 0; | |
| 1058 #endif /* HAVE_SCROLLBARS */ | |
| 1059 } | |
| 1060 | |
| 1061 /* Horizontal scrollbars are only active on windows with truncation | |
| 1062 turned on. */ | |
| 1063 int | |
| 4932 | 1064 window_scrollbar_height (struct window * USED_IF_SCROLLBARS (w)) |
| 428 | 1065 { |
| 1066 #ifdef HAVE_SCROLLBARS | |
| 1067 if (!WINDOW_WIN_P (w) | |
| 1068 || MINI_WINDOW_P (w) | |
| 1069 || NILP (w->buffer) | |
| 1070 || NILP (w->horizontal_scrollbar_visible_p) | |
| 1071 || !window_truncation_on (w)) | |
| 1072 return 0; | |
| 1073 | |
|
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|
1074 return XFIXNUM (w->scrollbar_height); |
| 428 | 1075 #else |
| 1076 return 0; | |
| 1077 #endif /* HAVE_SCROLLBARS */ | |
| 1078 } | |
| 1079 | |
| 1080 int | |
| 1081 window_modeline_height (struct window *w) | |
| 1082 { | |
| 1083 struct frame *f = XFRAME (w->frame); | |
| 1084 int modeline_height; | |
| 1085 | |
| 1086 if (MINI_WINDOW_P (w) || NILP (w->buffer)) | |
| 1087 { | |
| 1088 modeline_height = 0; | |
| 1089 } | |
| 1090 else if (!WINDOW_HAS_MODELINE_P (w)) | |
| 1091 { | |
| 1092 if (window_scrollbar_height (w)) | |
| 1093 modeline_height = 0; | |
| 1094 else | |
| 1095 { | |
| 1096 modeline_height = FRAMEMETH (f, divider_height, ()); | |
| 1097 | |
| 1098 if (!EQ (Qzero, w->modeline_shadow_thickness) && FRAME_WIN_P (f)) | |
| 1099 modeline_height += (2 * MODELINE_SHADOW_THICKNESS (w)); | |
| 1100 } | |
| 1101 } | |
| 1102 else | |
| 1103 { | |
| 1104 if (noninteractive) | |
| 1105 modeline_height = 0; | |
| 1106 else | |
| 1107 { | |
| 1108 display_line_dynarr *dla; | |
| 1109 | |
| 1110 /* We don't force a regeneration of the modeline here. | |
| 1111 Instead it is now a precondition that any function calling | |
| 1112 this should make sure that one of these structures is | |
| 1113 up-to-date. In practice this only affects two internal | |
| 1114 redisplay functions, regenerate_window and | |
| 1115 regenerate_window_point_center. */ | |
| 1116 /* We check DESIRED_DISP because if it is valid it is more | |
| 1117 up-to-date than CURRENT_DISP. For calls to this outside | |
| 1118 of redisplay it doesn't matter which structure we check | |
| 1119 since there is a redisplay condition that these | |
| 1120 structures be identical outside of redisplay. */ | |
| 1121 dla = window_display_lines (w, DESIRED_DISP); | |
| 4967 | 1122 if (dla && Dynarr_length (dla) && Dynarr_begin (dla)->modeline) |
| 1123 modeline_height = (Dynarr_begin (dla)->ascent + | |
| 1124 Dynarr_begin (dla)->descent); | |
| 428 | 1125 else |
| 1126 { | |
| 1127 dla = window_display_lines (w, CURRENT_DISP); | |
| 4967 | 1128 if (dla && Dynarr_length (dla) && Dynarr_begin (dla)->modeline) |
| 1129 modeline_height = (Dynarr_begin (dla)->ascent + | |
| 1130 Dynarr_begin (dla)->descent); | |
| 428 | 1131 else |
| 1132 /* This should be an abort except I'm not yet 100% | |
| 1133 confident that it won't ever get hit (though I | |
| 1134 haven't been able to trigger it). It is extremely | |
| 1135 unlikely to cause any noticeable problem and even if | |
| 1136 it does it will be a minor display glitch. */ | |
| 1137 /* #### Bullshit alert. It does get hit and it causes | |
| 1138 noticeable glitches. real_current_modeline_height | |
| 1139 is a kludge to fix this for 19.14. */ | |
| 1140 modeline_height = real_current_modeline_height (w); | |
| 1141 } | |
| 1142 | |
| 1143 if (!EQ (Qzero, w->modeline_shadow_thickness) && FRAME_WIN_P (f)) | |
| 1144 modeline_height += (2 * MODELINE_SHADOW_THICKNESS (w)); | |
| 1145 } | |
| 1146 } | |
| 1147 | |
| 1148 return modeline_height; | |
| 1149 } | |
| 1150 | |
| 1151 /***************************************************************************** | |
| 1152 margin_width_internal | |
| 1153 | |
| 1154 For a given window, return the width in pixels of the specified margin. | |
| 1155 ****************************************************************************/ | |
| 1156 static int | |
| 1157 margin_width_internal (struct window *w, int left_margin) | |
| 1158 { | |
| 1159 int window_cwidth = window_char_width (w, 1); | |
| 1160 int margin_cwidth; | |
| 1161 int font_width; | |
| 1162 Lisp_Object window; | |
| 1163 | |
| 1164 /* We might be getting called on a non-leaf. */ | |
| 1165 if (NILP (w->buffer)) | |
| 1166 return 0; | |
| 1167 | |
| 1168 /* The minibuffer never has margins. */ | |
| 1169 if (MINI_WINDOW_P (w)) | |
| 1170 return 0; | |
| 1171 | |
| 793 | 1172 window = wrap_window (w); |
|
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|
1173 margin_cwidth = (left_margin ? XFIXNUM (w->left_margin_width) : |
|
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|
1174 XFIXNUM (w->right_margin_width)); |
| 428 | 1175 |
|
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1176 default_face_width_and_height (window, &font_width, 0); |
| 428 | 1177 |
| 1178 /* The left margin takes precedence over the right margin so we | |
| 1179 subtract its width from the space available for the right | |
| 1180 margin. */ | |
| 1181 if (!left_margin) | |
|
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1182 window_cwidth -= XFIXNUM (w->left_margin_width); |
| 428 | 1183 |
| 1184 /* The margin cannot be wider than the window is. We allow the | |
| 1185 value to be bigger since it is possible for the user to enlarge | |
| 1186 the window such that the left margin value would no longer be too | |
| 1187 big, but we won't return a value that is larger. */ | |
| 1188 if (margin_cwidth > window_cwidth) | |
| 1189 margin_cwidth = window_cwidth; | |
| 1190 | |
| 1191 /* At the user level the margin is always specified in characters. | |
| 1192 Internally however it is manipulated in terms of pixels. */ | |
| 1193 return margin_cwidth * font_width; | |
| 1194 } | |
| 1195 | |
| 1196 int | |
| 1197 window_left_margin_width (struct window *w) | |
| 1198 { | |
| 1199 return margin_width_internal (w, 1); | |
| 1200 } | |
| 1201 | |
| 1202 int | |
| 1203 window_right_margin_width (struct window *w) | |
| 1204 { | |
| 1205 return margin_width_internal (w, 0); | |
| 1206 } | |
| 1207 | |
| 1208 /***************************************************************************** | |
| 1209 Window Gutters | |
| 1210 | |
| 1211 The gutters of a window are those areas in the boundary defined by | |
| 1212 w->pixel_top, w->pixel_left, w->pixel_height and w->pixel_width which | |
| 1213 do not contain text. Items which may be in the gutters include | |
| 1214 scrollbars, toolbars and modelines. The margin areas are not | |
| 1215 included. This is an exception made because redisplay special cases | |
| 1216 the handling of those areas in many places in such a way that | |
| 1217 including them in the gutter area would make life difficult. | |
| 1218 | |
| 1219 The size functions refer to height for the bottom and top gutters and | |
| 1220 width for the left and right gutters. The starting position | |
| 1221 functions refer to the Y coord for bottom and top gutters and the X | |
| 1222 coord for left and right gutters. All starting positions are | |
| 1223 relative to the frame, not the window. | |
| 1224 ****************************************************************************/ | |
| 1225 | |
| 442 | 1226 static int |
| 1227 window_top_window_gutter_height (struct window *w) | |
| 1228 { | |
| 428 | 1229 if (!NILP (w->hchild) || !NILP (w->vchild)) |
| 1230 return 0; | |
| 1231 | |
| 1232 #ifdef HAVE_SCROLLBARS | |
| 1233 if (!NILP (w->scrollbar_on_top_p)) | |
| 442 | 1234 return window_scrollbar_height (w); |
| 428 | 1235 else |
| 1236 #endif | |
| 442 | 1237 return 0; |
| 428 | 1238 } |
| 1239 | |
| 1240 int | |
| 442 | 1241 window_top_gutter_height (struct window *w) |
| 1242 { | |
| 1243 return window_top_window_gutter_height (w); | |
| 1244 } | |
| 1245 | |
| 1246 static int | |
| 1247 window_bottom_window_gutter_height (struct window *w) | |
| 1248 { | |
| 1249 int gutter; | |
| 428 | 1250 |
| 1251 if (!NILP (w->hchild) || !NILP (w->vchild)) | |
| 1252 return 0; | |
| 1253 | |
| 442 | 1254 gutter = window_modeline_height (w); |
| 428 | 1255 |
| 1256 #ifdef HAVE_SCROLLBARS | |
| 1257 if (NILP (w->scrollbar_on_top_p)) | |
| 1258 return window_scrollbar_height (w) + gutter; | |
| 1259 else | |
| 1260 #endif | |
| 1261 return gutter; | |
| 1262 } | |
| 1263 | |
| 1264 int | |
| 442 | 1265 window_bottom_gutter_height (struct window *w) |
| 1266 { | |
| 1267 return window_bottom_window_gutter_height (w); | |
| 1268 } | |
| 1269 | |
| 1270 static int | |
| 4932 | 1271 window_left_window_gutter_width (struct window *w, |
| 1272 int USED_IF_SCROLLBARS (modeline)) | |
| 442 | 1273 { |
| 428 | 1274 if (!NILP (w->hchild) || !NILP (w->vchild)) |
| 1275 return 0; | |
| 1276 | |
| 1277 #ifdef HAVE_SCROLLBARS | |
| 1278 if (!modeline && !NILP (w->scrollbar_on_left_p)) | |
| 442 | 1279 return window_scrollbar_width (w); |
| 428 | 1280 #endif |
| 1281 | |
| 442 | 1282 return 0; |
| 428 | 1283 } |
| 1284 | |
| 1285 int | |
| 442 | 1286 window_left_gutter_width (struct window *w, int modeline) |
| 1287 { | |
| 1288 return window_left_window_gutter_width (w, modeline); | |
| 1289 } | |
| 1290 | |
| 1291 static int | |
| 4932 | 1292 window_right_window_gutter_width (struct window *w, |
| 1293 int USED_IF_SCROLLBARS (modeline)) | |
| 442 | 1294 { |
| 1295 int gutter = 0; | |
| 428 | 1296 |
| 1297 if (!NILP (w->hchild) || !NILP (w->vchild)) | |
| 1298 return 0; | |
| 1299 | |
| 1300 #ifdef HAVE_SCROLLBARS | |
| 1301 if (!modeline && NILP (w->scrollbar_on_left_p)) | |
| 1302 gutter += window_scrollbar_width (w); | |
| 1303 #endif | |
| 1304 | |
| 1305 if (window_needs_vertical_divider (w)) | |
| 1306 gutter += window_divider_width (w); | |
| 1307 | |
| 1308 return gutter; | |
| 1309 } | |
| 1310 | |
| 442 | 1311 int |
| 1312 window_right_gutter_width (struct window *w, int modeline) | |
| 1313 { | |
| 1314 return window_right_window_gutter_width (w, modeline); | |
| 1315 } | |
| 1316 | |
| 1317 static int | |
| 1318 window_pixel_height (struct window* w) | |
| 1319 { | |
| 1320 return WINDOW_HEIGHT (w); | |
| 1321 } | |
| 1322 | |
| 428 | 1323 |
| 1324 DEFUN ("windowp", Fwindowp, 1, 1, 0, /* | |
| 444 | 1325 Return t if OBJECT is a window. |
| 428 | 1326 */ |
| 444 | 1327 (object)) |
| 1328 { | |
| 1329 return WINDOWP (object) ? Qt : Qnil; | |
| 428 | 1330 } |
| 1331 | |
| 1332 DEFUN ("window-live-p", Fwindow_live_p, 1, 1, 0, /* | |
| 444 | 1333 Return t if OBJECT is a window which is currently visible. |
| 428 | 1334 */ |
| 444 | 1335 (object)) |
| 1336 { | |
| 1337 return WINDOWP (object) && WINDOW_LIVE_P (XWINDOW (object)) | |
| 1338 ? Qt : Qnil; | |
| 428 | 1339 } |
| 1340 | |
| 1341 DEFUN ("selected-window", Fselected_window, 0, 1, 0, /* | |
| 1342 Return the window that the cursor now appears in and commands apply to. | |
| 1343 If the optional argument CON-DEV-OR-FRAME is specified and is a frame, return | |
| 1344 the selected window used by that frame. If CON-DEV-OR-FRAME is a device, | |
| 1345 then the selected frame on that device will be used. If CON-DEV-OR-FRAME | |
| 1346 is a console, the selected frame on that console's selected device will | |
| 1347 be used. Otherwise, the selected frame is used. | |
| 1348 */ | |
| 1349 (con_dev_or_frame)) | |
| 1350 { | |
| 1351 if (NILP (con_dev_or_frame) && NILP (Fselected_device (Qnil))) | |
| 1352 return Qnil; /* happens at startup */ | |
| 1353 | |
| 1354 { | |
| 1355 struct frame *f = decode_frame_or_selected (con_dev_or_frame); | |
| 1356 return FRAME_SELECTED_WINDOW (f); | |
| 1357 } | |
| 1358 } | |
| 1359 | |
| 1360 DEFUN ("last-nonminibuf-window", Flast_nonminibuf_window, 0, 1, 0, /* | |
| 1361 Return the last selected window that is not a minibuffer window. | |
| 1362 If the optional argument CON-DEV-OR-FRAME is specified and is a frame, | |
| 1363 return the last non-minibuffer window used by that frame. If | |
| 1364 CON-DEV-OR-FRAME is a device, then the selected frame on that device | |
| 1365 will be used. If CON-DEV-OR-FRAME is a console, the selected frame on | |
| 1366 that console's selected device will be used. Otherwise, the selected | |
| 1367 frame is used. | |
| 1368 */ | |
| 1369 (con_dev_or_frame)) | |
| 1370 { | |
| 1371 if (NILP (con_dev_or_frame) && NILP (Fselected_device (Qnil))) | |
| 1372 return Qnil; /* happens at startup */ | |
| 1373 | |
| 1374 { | |
| 1375 struct frame *f = decode_frame_or_selected (con_dev_or_frame); | |
| 1376 return FRAME_LAST_NONMINIBUF_WINDOW (f); | |
| 1377 } | |
| 1378 } | |
| 1379 | |
| 1380 DEFUN ("minibuffer-window", Fminibuffer_window, 0, 1, 0, /* | |
| 1381 Return the window used now for minibuffers. | |
| 1382 If the optional argument CON-DEV-OR-FRAME is specified and is a frame, return | |
| 1383 the minibuffer window used by that frame. If CON-DEV-OR-FRAME is a device, | |
| 1384 then the selected frame on that device will be used. If CON-DEV-OR-FRAME | |
| 1385 is a console, the selected frame on that console's selected device will | |
| 1386 be used. Otherwise, the selected frame is used. | |
| 1387 */ | |
| 1388 (con_dev_or_frame)) | |
| 1389 { | |
| 1390 return FRAME_MINIBUF_WINDOW (decode_frame_or_selected (con_dev_or_frame)); | |
| 1391 } | |
| 1392 | |
| 438 | 1393 DEFUN ("window-minibuffer-p", Fwindow_minibuffer_p, 0, 1, 0, /* |
| 428 | 1394 Return non-nil if WINDOW is a minibuffer window. |
| 1395 */ | |
| 1396 (window)) | |
| 1397 { | |
| 1398 return MINI_WINDOW_P (decode_window (window)) ? Qt : Qnil; | |
| 1399 } | |
| 1400 | |
| 1401 DEFUN ("window-first-hchild", Fwindow_first_hchild, 1, 1, 0, /* | |
| 1402 Return the first horizontal child of WINDOW, or nil. | |
| 1403 */ | |
| 1404 (window)) | |
| 1405 { | |
| 1406 return decode_window (window)->hchild; | |
| 1407 } | |
| 1408 | |
| 1409 DEFUN ("window-first-vchild", Fwindow_first_vchild, 1, 1, 0, /* | |
| 1410 Return the first vertical child of WINDOW, or nil. | |
| 1411 */ | |
| 1412 (window)) | |
| 1413 { | |
| 1414 return decode_window (window)->vchild; | |
| 1415 } | |
| 1416 | |
| 1417 DEFUN ("window-next-child", Fwindow_next_child, 1, 1, 0, /* | |
| 1418 Return the next window on the same level as WINDOW, or nil. | |
| 1419 */ | |
| 1420 (window)) | |
| 1421 { | |
| 1422 return decode_window (window)->next; | |
| 1423 } | |
| 1424 | |
| 1425 DEFUN ("window-previous-child", Fwindow_previous_child, 1, 1, 0, /* | |
| 1426 Return the previous window on the same level as WINDOW, or nil. | |
| 1427 */ | |
| 1428 (window)) | |
| 1429 { | |
| 1430 return decode_window (window)->prev; | |
| 1431 } | |
| 1432 | |
| 1433 DEFUN ("window-parent", Fwindow_parent, 1, 1, 0, /* | |
| 1434 Return the parent of WINDOW, or nil. | |
| 1435 */ | |
| 1436 (window)) | |
| 1437 { | |
| 1438 return decode_window (window)->parent; | |
| 1439 } | |
| 1440 | |
| 1441 DEFUN ("window-lowest-p", Fwindow_lowest_p, 1, 1, 0, /* | |
| 1442 Return non-nil if WINDOW is along the bottom of its frame. | |
| 1443 */ | |
| 1444 (window)) | |
| 1445 { | |
| 1446 return window_is_lowest (decode_window (window)) ? Qt : Qnil; | |
| 1447 } | |
| 1448 | |
| 1449 DEFUN ("window-highest-p", Fwindow_highest_p, 1, 1, 0, /* | |
| 1450 Return non-nil if WINDOW is along the top of its frame. | |
| 1451 */ | |
| 1452 (window)) | |
| 1453 { | |
| 1454 return window_is_highest (decode_window (window)) ? Qt : Qnil; | |
| 1455 } | |
| 1456 | |
| 1457 DEFUN ("window-leftmost-p", Fwindow_leftmost_p, 1, 1, 0, /* | |
| 1458 Return non-nil if WINDOW is along the left edge of its frame. | |
| 1459 */ | |
| 1460 (window)) | |
| 1461 { | |
| 1462 return window_is_leftmost (decode_window (window)) ? Qt : Qnil; | |
| 1463 } | |
| 1464 | |
| 1465 DEFUN ("window-rightmost-p", Fwindow_rightmost_p, 1, 1, 0, /* | |
| 1466 Return non-nil if WINDOW is along the right edge of its frame. | |
| 1467 */ | |
| 1468 (window)) | |
| 1469 { | |
| 1470 return window_is_rightmost (decode_window (window)) ? Qt : Qnil; | |
| 1471 } | |
| 1472 | |
| 1708 | 1473 DEFUN ("pos-visible-in-window-p", Fpos_visible_in_window_p, 0, 3, 0, /* |
| 1474 Returns t if position POS is currently on the frame in WINDOW. | |
| 428 | 1475 Returns nil if that position is scrolled vertically out of view. |
| 1708 | 1476 If a character is only partially visible, nil is returned, unless the |
| 1477 optional argument PARTIALLY is non-nil. | |
| 428 | 1478 POS defaults to point in WINDOW's buffer; WINDOW, to the selected window. |
| 1479 */ | |
| 1708 | 1480 (pos, window, partially)) |
| 428 | 1481 { |
| 1482 struct window *w = decode_window (window); | |
| 665 | 1483 Charbpos top = marker_position (w->start[CURRENT_DISP]); |
| 1484 Charbpos posint; | |
| 428 | 1485 struct buffer *buf = XBUFFER (w->buffer); |
| 1486 | |
| 1487 if (NILP (pos)) | |
| 1488 posint = BUF_PT (buf); | |
| 1489 else | |
| 1490 { | |
|
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1491 CHECK_FIXNUM_COERCE_MARKER (pos); |
|
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1492 posint = XFIXNUM (pos); |
| 428 | 1493 } |
| 1494 | |
| 1495 if (posint < top || posint > BUF_ZV (buf)) | |
| 1496 return Qnil; | |
| 1497 | |
| 1498 /* w->start can be out of range. If it is, do something reasonable. */ | |
| 1499 if (top < BUF_BEGV (buf) || top > BUF_ZV (buf)) | |
| 1500 return Qnil; | |
| 1501 | |
| 1708 | 1502 return point_would_be_visible (w, top, posint, !NILP (partially)) |
| 1503 ? Qt : Qnil; | |
| 428 | 1504 } |
| 1505 | |
| 1506 | |
| 1507 struct window * | |
| 1508 decode_window (Lisp_Object window) | |
| 1509 { | |
| 1510 if (NILP (window)) | |
| 1511 return XWINDOW (Fselected_window (Qnil)); | |
| 1512 | |
| 1513 CHECK_LIVE_WINDOW (window); | |
| 1514 return XWINDOW (window); | |
| 1515 } | |
| 1516 | |
| 872 | 1517 int |
| 1518 window_live_p (struct window *w) | |
| 1519 { | |
| 1520 return WINDOW_LIVE_P (w); | |
| 1521 } | |
| 1522 | |
| 1523 Lisp_Object | |
| 1524 window_frame (struct window *w) | |
| 1525 { | |
| 1526 return WINDOW_FRAME (w); | |
| 1527 } | |
| 1528 | |
| 1529 Lisp_Object | |
| 1530 window_buffer (struct window *w) | |
| 1531 { | |
| 1532 return WINDOW_BUFFER (w); | |
| 1533 } | |
| 1534 | |
| 428 | 1535 DEFUN ("window-buffer", Fwindow_buffer, 0, 1, 0, /* |
| 1536 Return the buffer that WINDOW is displaying. | |
| 1537 */ | |
| 1538 (window)) | |
| 1539 { | |
| 1540 return decode_window (window)->buffer; | |
| 1541 } | |
| 1542 | |
| 1543 DEFUN ("window-frame", Fwindow_frame, 0, 1, 0, /* | |
| 1544 Return the frame that window WINDOW is on. | |
| 1545 */ | |
| 1546 (window)) | |
| 1547 { | |
| 1548 return decode_window (window)->frame; | |
| 1549 } | |
| 1550 | |
| 1551 DEFUN ("window-height", Fwindow_height, 0, 1, 0, /* | |
| 1552 Return the number of default lines in WINDOW. | |
| 1553 This actually works by dividing the window's pixel height (including | |
| 1554 the modeline and horizontal scrollbar, if any) by the height of the | |
| 1555 default font; therefore, the number of displayed lines will probably | |
| 1556 be different. | |
| 1557 Use `window-height' to get consistent results in geometry calculations. | |
| 1558 Use `window-displayed-height' to get the actual number of lines | |
| 1559 currently displayed in a window. | |
| 442 | 1560 |
| 1561 The names are somewhat confusing; here's a table to help out: | |
| 1562 | |
| 1563 width height | |
| 1564 ------------------------------------------------------------------------- | |
| 1565 w/o gutters | |
| 1566 (rows/columns) window-width window-text-area-height | |
| 1567 (pixels) window-text-area-pixel-width window-text-area-pixel-height | |
| 1568 | |
| 1569 with gutters | |
| 1570 (rows/columns) window-full-width window-height | |
| 1571 (pixels) window-pixel-width window-pixel-height | |
| 1572 | |
| 1573 actually displayed | |
| 1574 (rows/columns) ---- window-displayed-height | |
| 1575 (pixels) ---- window-displayed-text-pixel-height | |
| 428 | 1576 */ |
| 1577 (window)) | |
| 1578 { | |
|
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1579 return make_fixnum (window_char_height (decode_window (window), 1)); |
| 428 | 1580 } |
| 1581 | |
| 1582 DEFUN ("window-displayed-height", Fwindow_displayed_height, 0, 1, 0, /* | |
| 1583 Return the number of lines currently displayed in WINDOW. | |
| 1584 This counts the actual number of lines displayed in WINDOW | |
| 1585 \(as opposed to `window-height'). The modeline and horizontal | |
| 1586 scrollbar do not count as lines. If there is some blank space | |
| 1587 between the end of the buffer and the end of the window, this | |
| 1588 function pretends that there are lines of text in the default | |
| 1589 font there. | |
| 1590 */ | |
| 1591 (window)) | |
| 1592 { | |
|
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1593 return make_fixnum (window_displayed_height (decode_window (window))); |
| 428 | 1594 } |
| 1595 | |
| 1596 DEFUN ("window-pixel-height", Fwindow_pixel_height, 0, 1, 0, /* | |
| 1597 Return the height of WINDOW in pixels. Defaults to current window. | |
| 1598 This includes the window's modeline and horizontal scrollbar (if any). | |
| 1599 */ | |
| 1600 (window)) | |
| 1601 { | |
|
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1602 return make_fixnum (window_pixel_height (decode_window (window))); |
| 442 | 1603 } |
| 1604 | |
| 1605 DEFUN ("window-text-area-height", Fwindow_text_area_height, 0, 1, 0, /* | |
| 1606 Return the number of default lines in the text area of WINDOW. | |
| 1607 This actually works by dividing the window's text area pixel height (i.e. | |
| 1608 excluding the modeline and horizontal scrollbar, if any) by the height of the | |
| 1609 default font; therefore, the number of displayed lines will probably | |
| 1610 be different. | |
| 1611 See also `window-height' and `window-displayed-height'. | |
| 1612 */ | |
| 1613 (window)) | |
| 1614 { | |
|
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1615 return make_fixnum (window_char_height (decode_window (window), 0)); |
| 428 | 1616 } |
| 1617 | |
| 1618 DEFUN ("window-text-area-pixel-height", | |
| 1619 Fwindow_text_area_pixel_height, 0, 1, 0, /* | |
| 1620 Return the height in pixels of the text-displaying portion of WINDOW. | |
| 1621 Unlike `window-pixel-height', the space occupied by the modeline and | |
| 1622 horizontal scrollbar, if any, is not counted. | |
| 1623 */ | |
| 1624 (window)) | |
| 1625 { | |
| 1626 struct window *w = decode_window (window); | |
| 1627 | |
|
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1628 return make_fixnum (WINDOW_TEXT_HEIGHT (w)); |
| 428 | 1629 } |
| 1630 | |
| 1631 DEFUN ("window-displayed-text-pixel-height", | |
| 1632 Fwindow_displayed_text_pixel_height, 0, 2, 0, /* | |
| 1633 Return the height in pixels of the text displayed in WINDOW. | |
| 1634 Unlike `window-text-area-pixel-height', any blank space below the | |
| 1635 end of the buffer is not included. If optional argument NOCLIPPED | |
| 1636 is non-nil, do not include space occupied by clipped lines. | |
| 1637 */ | |
| 1638 (window, noclipped)) | |
| 1639 { | |
| 1640 struct window *w; | |
| 665 | 1641 Charbpos start, eobuf; |
| 428 | 1642 int defheight; |
| 1643 int hlimit, height, prev_height = -1; | |
| 1644 int line; | |
| 1645 int elt, nelt, i; | |
| 1646 int needed; | |
| 1647 line_start_cache_dynarr *cache; | |
| 1648 | |
| 1649 if (NILP (window)) | |
| 1650 window = Fselected_window (Qnil); | |
| 1651 | |
| 1652 CHECK_LIVE_WINDOW (window); | |
| 1653 w = XWINDOW (window); | |
| 1654 | |
| 1655 start = marker_position (w->start[CURRENT_DISP]); | |
| 1656 hlimit = WINDOW_TEXT_HEIGHT (w); | |
| 1657 eobuf = BUF_ZV (XBUFFER (w->buffer)); | |
| 1658 | |
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|
1659 default_face_width_and_height (window, NULL, &defheight); |
| 428 | 1660 |
| 1661 /* guess lines needed in line start cache + a few extra */ | |
| 1662 needed = (hlimit + defheight-1) / defheight + 3; | |
| 1663 | |
| 1664 while (1) { | |
| 1665 elt = point_in_line_start_cache (w, start, needed); | |
| 1666 assert (elt >= 0); /* in the cache */ | |
| 1667 | |
| 1668 cache = w->line_start_cache; | |
| 1669 nelt = Dynarr_length (cache); | |
| 1670 | |
| 1671 height = 0; | |
| 1672 for (i = elt; i < nelt; i++) { | |
| 1673 line = Dynarr_atp (cache, i)->height; | |
| 1674 | |
| 1675 if (height + line > hlimit) | |
|
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|
1676 return make_fixnum (!NILP (noclipped) ? height : hlimit); |
| 428 | 1677 |
| 1678 height += line; | |
| 1679 | |
| 1680 if (height == hlimit || Dynarr_atp (cache, i)->end >= eobuf) | |
|
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1681 return make_fixnum (height); |
| 428 | 1682 } |
| 1683 | |
| 1684 /* get here => need more cache lines. try again. */ | |
| 1685 assert(height > prev_height); /* progress? */ | |
| 1686 prev_height = height; | |
| 1687 | |
| 1688 needed += ((hlimit - height)*(nelt - elt) + height-1)/height + 3; | |
| 1689 } | |
| 1690 | |
|
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|
1691 RETURN_NOT_REACHED(make_fixnum (0)); /* shut up compiler */ |
| 428 | 1692 } |
| 1693 | |
| 1694 DEFUN ("window-width", Fwindow_width, 0, 1, 0, /* | |
| 1695 Return the number of display columns in WINDOW. | |
| 442 | 1696 This is the width that is usable columns available for text in WINDOW, |
| 1697 and does not include vertical scrollbars, dividers, or the like. See also | |
| 1698 `window-full-width' and `window-height'. | |
| 428 | 1699 */ |
| 1700 (window)) | |
| 1701 { | |
|
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|
1702 return make_fixnum (window_char_width (decode_window (window), 0)); |
| 428 | 1703 } |
| 1704 | |
| 442 | 1705 DEFUN ("window-full-width", Fwindow_full_width, 0, 1, 0, /* |
| 1706 Return the total number of columns in WINDOW. | |
| 1707 This is like `window-width' but includes vertical scrollbars, dividers, | |
| 1708 etc. | |
| 1709 */ | |
| 1710 (window)) | |
| 1711 { | |
|
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|
1712 return make_fixnum (window_char_width (decode_window (window), 1)); |
| 442 | 1713 } |
| 1714 | |
| 428 | 1715 DEFUN ("window-pixel-width", Fwindow_pixel_width, 0, 1, 0, /* |
| 1716 Return the width of WINDOW in pixels. Defaults to current window. | |
| 1717 */ | |
| 1718 (window)) | |
| 1719 { | |
|
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|
1720 return make_fixnum (decode_window (window)->pixel_width); |
| 428 | 1721 } |
| 1722 | |
| 1723 DEFUN ("window-text-area-pixel-width", | |
| 1724 Fwindow_text_area_pixel_width, 0, 1, 0, /* | |
| 1725 Return the width in pixels of the text-displaying portion of WINDOW. | |
| 1726 Unlike `window-pixel-width', the space occupied by the vertical | |
| 1727 scrollbar or divider, if any, is not counted. | |
| 1728 */ | |
| 1729 (window)) | |
| 1730 { | |
| 1731 struct window *w = decode_window (window); | |
| 1732 | |
|
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|
1733 return make_fixnum (WINDOW_TEXT_WIDTH (w)); |
| 428 | 1734 } |
| 1735 | |
| 1736 DEFUN ("window-hscroll", Fwindow_hscroll, 0, 1, 0, /* | |
| 1737 Return the number of columns by which WINDOW is scrolled from left margin. | |
| 1738 */ | |
| 1739 (window)) | |
| 1740 { | |
|
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|
1741 return make_fixnum (decode_window (window)->hscroll); |
| 428 | 1742 } |
| 1743 | |
| 1744 DEFUN ("modeline-hscroll", Fmodeline_hscroll, 0, 1, 0, /* | |
| 442 | 1745 Return the horizontal scrolling amount of WINDOW's modeline. |
| 438 | 1746 If the window has no modeline, return nil. |
| 428 | 1747 */ |
| 1748 (window)) | |
| 1749 { | |
| 1750 struct window *w = decode_window (window); | |
| 1751 | |
|
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|
1752 return (WINDOW_HAS_MODELINE_P (w)) ? make_fixnum ((int) w->modeline_hscroll) : |
| 438 | 1753 Qnil; |
| 428 | 1754 } |
| 1755 | |
| 1756 DEFUN ("set-modeline-hscroll", Fset_modeline_hscroll, 2, 2, 0, /* | |
| 442 | 1757 Set the horizontal scrolling amount of WINDOW's modeline to NCOL. |
| 438 | 1758 If NCOL is negative, it will silently be forced to 0. |
| 1759 If the window has no modeline, return nil. Otherwise, return the actual | |
| 1760 value that was set. | |
| 428 | 1761 */ |
| 1762 (window, ncol)) | |
| 1763 { | |
| 1764 struct window *w = decode_window (window); | |
| 1765 | |
| 1766 if (WINDOW_HAS_MODELINE_P (w)) | |
| 1767 { | |
| 438 | 1768 Charcount ncols; |
| 1769 | |
|
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|
1770 CHECK_FIXNUM (ncol); |
|
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|
1771 ncols = (XFIXNUM (ncol) <= 0) ? 0 : (Charcount) XFIXNUM (ncol); |
| 438 | 1772 if (ncols != w->modeline_hscroll) |
| 1773 { | |
| 1774 MARK_MODELINE_CHANGED; | |
| 1775 w->modeline_hscroll = ncols; | |
| 1776 } | |
|
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|
1777 return make_fixnum ((int) ncols); |
| 428 | 1778 } |
| 438 | 1779 |
| 428 | 1780 return Qnil; |
| 1781 } | |
| 1782 | |
| 1783 DEFUN ("set-window-hscroll", Fset_window_hscroll, 2, 2, 0, /* | |
| 1784 Set number of columns WINDOW is scrolled from left margin to NCOL. | |
| 1785 NCOL should be zero or positive. | |
| 1786 */ | |
| 1787 (window, ncol)) | |
| 1788 { | |
| 1789 struct window *w; | |
| 1790 int ncols; | |
| 1791 | |
|
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|
1792 CHECK_FIXNUM (ncol); |
|
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|
1793 ncols = XFIXNUM (ncol); |
| 428 | 1794 if (ncols < 0) ncols = 0; |
| 1795 w = decode_window (window); | |
| 1796 if (w->hscroll != ncols) | |
| 1797 MARK_CLIP_CHANGED; /* FSF marks differently but we aren't FSF. */ | |
| 1798 w->hscroll = ncols; | |
| 1799 return ncol; | |
| 1800 } | |
| 1801 | |
| 1802 DEFUN ("window-pixel-edges", Fwindow_pixel_edges, 0, 1, 0, /* | |
| 1803 Return a list of the pixel edge coordinates of WINDOW. | |
| 444 | 1804 The returned list is of the form (LEFT TOP RIGHT BOTTOM), |
| 1805 all relative to 0, 0 at the top left corner of WINDOW's frame. | |
| 1806 The frame toolbars, menubars and gutters are considered to be outside | |
| 1807 of this area, while the scrollbars are considered to be inside. | |
| 428 | 1808 */ |
| 1809 (window)) | |
| 1810 { | |
| 1811 struct window *w = decode_window (window); | |
| 1812 struct frame *f = XFRAME (w->frame); | |
| 1813 | |
| 5090 | 1814 int left = w->pixel_left - FRAME_PANED_LEFT_EDGE (f); |
| 1815 int top = w->pixel_top - FRAME_PANED_TOP_EDGE (f); | |
| 428 | 1816 |
|
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1817 return list4 (make_fixnum (left), |
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1818 make_fixnum (top), |
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1819 make_fixnum (left + w->pixel_width), |
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1820 make_fixnum (top + w->pixel_height)); |
| 428 | 1821 } |
| 1822 | |
| 1823 DEFUN ("window-text-area-pixel-edges", | |
| 1824 Fwindow_text_area_pixel_edges, 0, 1, 0, /* | |
| 1825 Return a list of the pixel edge coordinates of the text area of WINDOW. | |
| 444 | 1826 The returned list is of the form (LEFT TOP RIGHT BOTTOM), |
| 1827 all relative to 0, 0 at the top left corner of the total area allocated | |
| 1828 to the window, which includes the scrollbars. | |
| 428 | 1829 */ |
| 1830 (window)) | |
| 1831 { | |
| 1832 struct window *w = decode_window (window); | |
| 1833 | |
| 1834 int left = window_left_gutter_width (w, /* modeline = */ 0); | |
| 1835 int top = window_top_gutter_height (w); | |
| 1836 int right = WINDOW_WIDTH (w) - window_right_gutter_width (w, 0); | |
| 1837 int bottom = WINDOW_HEIGHT (w) - window_bottom_gutter_height (w); | |
| 1838 | |
|
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1839 return list4 (make_fixnum (left), |
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1840 make_fixnum (top), |
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1841 make_fixnum (right), |
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1842 make_fixnum (bottom)); |
| 428 | 1843 } |
| 1844 | |
| 1845 DEFUN ("window-point", Fwindow_point, 0, 1, 0, /* | |
| 1846 Return current value of point in WINDOW. | |
| 442 | 1847 For a non-selected window, this is the value point would have |
| 428 | 1848 if that window were selected. |
| 1849 | |
| 1850 Note that, when WINDOW is the selected window and its buffer | |
| 1851 is also currently selected, the value returned is the same as (point). | |
| 1852 It would be more strictly correct to return the `top-level' value | |
| 1853 of point, outside of any save-excursion forms. | |
| 444 | 1854 But that value is hard to find. |
| 428 | 1855 */ |
| 1856 (window)) | |
| 1857 { | |
| 1858 struct window *w = decode_window (window); | |
| 1859 | |
| 1860 /* The special check for current buffer is necessary for this | |
| 1861 function to work as defined when called within an excursion. */ | |
| 1862 if (w == XWINDOW (Fselected_window (XFRAME (w->frame)->device)) | |
| 1863 && current_buffer == XBUFFER (w->buffer)) | |
| 1864 return Fpoint (Qnil); | |
| 1865 return Fmarker_position (w->pointm[CURRENT_DISP]); | |
| 1866 } | |
| 1867 | |
| 1868 DEFUN ("window-start", Fwindow_start, 0, 1, 0, /* | |
| 1869 Return position at which display currently starts in WINDOW. | |
| 1870 This is updated by redisplay or by calling `set-window-start'. | |
| 1871 */ | |
| 1872 (window)) | |
| 1873 { | |
| 1874 return Fmarker_position (decode_window (window)->start[CURRENT_DISP]); | |
| 1875 } | |
| 1876 | |
| 1877 DEFUN ("window-end", Fwindow_end, 0, 2, 0, /* | |
| 1878 Return position at which display currently ends in WINDOW. | |
| 1879 This is updated by redisplay, when it runs to completion. | |
| 444 | 1880 Simply changing the buffer text or setting `window-start' does not |
| 1881 update this value. WINDOW defaults to the selected window. | |
| 1882 | |
| 1883 If optional arg GUARANTEE is non-nil, the return value is guaranteed | |
| 1884 to be the same value as this function would return at the end of the | |
| 1885 next full redisplay assuming nothing else changes in the meantime. | |
| 1886 This function is potentially much slower with this flag set. | |
| 428 | 1887 */ |
| 1888 (window, guarantee)) | |
| 1889 { | |
| 1890 struct window *w = decode_window (window); | |
| 1891 | |
| 1892 if (NILP (guarantee)) | |
| 1893 { | |
| 1894 Lisp_Object buf; | |
| 1895 buf = w->buffer; | |
| 1896 CHECK_BUFFER (buf); | |
|
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1897 return make_fixnum (BUF_Z (XBUFFER (buf)) - w->window_end_pos[CURRENT_DISP]); |
| 428 | 1898 } |
| 1899 else | |
| 1900 { | |
| 665 | 1901 Charbpos startp = marker_position (w->start[CURRENT_DISP]); |
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1902 return make_fixnum (end_of_last_line (w, startp)); |
| 428 | 1903 } |
| 1904 } | |
| 1905 | |
| 442 | 1906 DEFUN ("window-last-line-visible-height", Fwindow_last_line_visible_height, 0, 1, 0, /* |
| 1907 Return pixel height of visible part of last window line if it is clipped. | |
| 1908 If the last line is not clipped, return nil. | |
| 1909 */ | |
| 1910 (window)) | |
| 1911 { | |
| 1912 struct window *w = decode_window (window); | |
| 1913 display_line_dynarr *dla = window_display_lines (w, CURRENT_DISP); | |
| 1914 int num_lines = Dynarr_length (dla); | |
| 1915 struct display_line *dl; | |
| 1916 | |
| 1917 /* No lines - no clipped lines */ | |
| 4967 | 1918 if (num_lines == 0 || (num_lines == 1 && Dynarr_begin (dla)->modeline)) |
| 442 | 1919 return Qnil; |
| 1920 | |
| 1921 dl = Dynarr_atp (dla, num_lines - 1); | |
| 1922 if (dl->clip == 0) | |
| 1923 return Qnil; | |
| 1924 | |
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1925 return make_fixnum (dl->ascent + dl->descent - dl->clip); |
| 442 | 1926 } |
| 1927 | |
| 428 | 1928 DEFUN ("set-window-point", Fset_window_point, 2, 2, 0, /* |
| 1929 Make point value in WINDOW be at position POS in WINDOW's buffer. | |
| 1161 | 1930 If WINDOW is the selected window, and window's buffer is the current |
| 1931 buffer, this actually changes the buffer's point instead of the window's | |
| 1932 point. (The equivalence of the selected window's point with its buffer's | |
| 1933 point is maintained throughout XEmacs. However, enforcing the additional | |
| 1934 restriction on the current buffer is "bug compatible" with FSF and is | |
| 1935 perhaps more logical.) | |
| 428 | 1936 */ |
| 1937 (window, pos)) | |
| 1938 { | |
| 1939 struct window *w = decode_window (window); | |
| 1940 | |
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1941 CHECK_FIXNUM_COERCE_MARKER (pos); |
| 1161 | 1942 |
| 844 | 1943 /* Don't dereference selected-window because there may not |
| 1944 be one -- e.g. at startup */ | |
| 1161 | 1945 if (EQ (wrap_window (w), Fselected_window (Qnil)) |
| 1946 && EQ (w->buffer, Fcurrent_buffer ())) | |
| 1947 Fgoto_char (pos, Qnil); | |
| 428 | 1948 else |
| 1949 set_marker_restricted (w->pointm[CURRENT_DISP], pos, w->buffer); | |
| 1950 | |
| 1951 MARK_POINT_CHANGED; | |
| 1952 return pos; | |
| 1953 } | |
| 1954 | |
| 1955 DEFUN ("set-window-start", Fset_window_start, 2, 3, 0, /* | |
| 1956 Make display in WINDOW start at position POS in WINDOW's buffer. | |
| 1957 Optional third arg NOFORCE non-nil inhibits next redisplay | |
| 1958 from overriding motion of point in order to display at this exact start. | |
| 1959 */ | |
| 1960 (window, pos, noforce)) | |
| 1961 { | |
| 1962 struct window *w = decode_window (window); | |
| 1963 | |
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1964 CHECK_FIXNUM_COERCE_MARKER (pos); |
| 428 | 1965 set_marker_restricted (w->start[CURRENT_DISP], pos, w->buffer); |
| 1966 /* this is not right, but much easier than doing what is right. */ | |
| 1967 /* w->start_at_line_beg = 0; */ | |
| 1968 /* WTF is the above supposed to mean? GE */ | |
| 1969 w->start_at_line_beg = beginning_of_line_p (XBUFFER (w->buffer), | |
| 1970 marker_position (w->start[CURRENT_DISP])); | |
| 1971 if (NILP (noforce)) | |
| 1972 w->force_start = 1; | |
| 1973 w->redo_modeline = 1; | |
| 1974 SET_LAST_MODIFIED (w, 0); | |
| 1975 SET_LAST_FACECHANGE (w); | |
| 1976 | |
| 1977 MARK_WINDOWS_CHANGED (w); | |
| 1978 | |
| 1979 return pos; | |
| 1980 } | |
| 1981 | |
| 1982 DEFUN ("window-dedicated-p", Fwindow_dedicated_p, 1, 1, 0, /* | |
| 1983 Return WINDOW's dedicated object, usually t or nil. | |
| 1984 See also `set-window-dedicated-p'. | |
| 1985 */ | |
| 1986 (window)) | |
| 1987 { | |
| 1988 return decode_window (window)->dedicated; | |
| 1989 } | |
| 1990 | |
| 1991 DEFUN ("set-window-dedicated-p", Fset_window_dedicated_p, 2, 2, 0, /* | |
| 1992 Control whether WINDOW is dedicated to the buffer it displays. | |
| 1993 If it is dedicated, Emacs will not automatically change | |
| 1994 which buffer appears in it. | |
| 1995 The second argument is the new value for the dedication flag; | |
| 1996 non-nil means yes. | |
| 1997 */ | |
| 1998 (window, arg)) | |
| 1999 { | |
| 2000 struct window *w = decode_window (window); | |
| 2001 | |
| 2002 w->dedicated = NILP (arg) ? Qnil : Qt; | |
| 2003 | |
| 2004 return w->dedicated; | |
| 2005 } | |
| 2006 | |
| 2007 /* FSFmacs has window-display-table here. We have display table as a | |
| 2008 specifier. */ | |
| 2009 | |
| 2010 | |
| 2011 /* Record info on buffer window w is displaying | |
| 2012 when it is about to cease to display that buffer. */ | |
| 2013 static void | |
| 2014 unshow_buffer (struct window *w) | |
| 2015 { | |
| 2016 Lisp_Object buf = w->buffer; | |
| 844 | 2017 struct buffer *b = XBUFFER (buf); |
| 2018 | |
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2019 assert (b == XMARKER (w->pointm[CURRENT_DISP])->buffer); |
| 428 | 2020 |
| 2021 /* FSF disables this check, so I'll do it too. I hope it won't | |
| 2022 break things. --ben */ | |
| 2023 #if 0 | |
| 2024 if (w == XWINDOW (Fselected_window (Qnil)) | |
| 2025 || ! EQ (buf, XWINDOW (Fselected_window (Qnil))->buffer)) | |
| 2026 /* Do this except when the selected window's buffer | |
| 2027 is being removed from some other window. */ | |
| 2028 #endif | |
| 2029 /* last_window_start records the start position that this buffer | |
| 2030 had in the last window to be disconnected from it. | |
| 2031 Now that this statement is unconditional, | |
| 2032 it is possible for the buffer to be displayed in the | |
| 2033 selected window, while last_window_start reflects another | |
| 2034 window which was recently showing the same buffer. | |
| 2035 Some people might say that might be a good thing. Let's see. */ | |
| 2036 XBUFFER (buf)->last_window_start = | |
| 2037 marker_position (w->start[CURRENT_DISP]); | |
| 2038 | |
| 2039 /* Point in the selected window's buffer | |
| 2040 is actually stored in that buffer, and the window's pointm isn't used. | |
| 2041 So don't clobber point in that buffer. */ | |
| 2042 if (! EQ (buf, XWINDOW (Fselected_window (Qnil))->buffer)) | |
| 844 | 2043 BUF_SET_PT (b, |
| 2044 charbpos_clip_to_bounds | |
| 2045 (BUF_BEGV (b), | |
| 2046 marker_position (w->pointm[CURRENT_DISP]), | |
| 2047 BUF_ZV (b))); | |
| 2048 | |
| 2049 { | |
| 2050 Lisp_Object marker = Fgethash (buf, w->saved_point_cache, Qnil); | |
| 2051 int selected = EQ (wrap_window (w), Fselected_window (Qnil)); | |
| 2052 | |
| 2053 if (NILP (marker)) | |
| 2054 { | |
| 2055 marker = Fmake_marker (); | |
| 2056 Fputhash (buf, marker, w->saved_point_cache); | |
| 2057 } | |
| 2058 Fset_marker (marker, | |
|
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2059 selected ? make_fixnum (BUF_PT (b)) : w->pointm[CURRENT_DISP], |
| 844 | 2060 buf); |
| 2061 | |
| 2062 marker = Fgethash (buf, w->saved_last_window_start_cache, Qnil); | |
| 2063 | |
| 2064 if (NILP (marker)) | |
| 2065 { | |
| 2066 marker = Fmake_marker (); | |
| 2067 Fputhash (buf, marker, w->saved_last_window_start_cache); | |
| 2068 } | |
| 2069 Fset_marker (marker, w->start[CURRENT_DISP], buf); | |
| 2070 } | |
| 428 | 2071 } |
| 2072 | |
| 2073 /* Put REPLACEMENT into the window structure in place of OLD. */ | |
| 2074 static void | |
| 2075 replace_window (Lisp_Object old, Lisp_Object replacement) | |
| 2076 { | |
| 2077 Lisp_Object tem; | |
| 2078 struct window *o = XWINDOW (old), *p = XWINDOW (replacement); | |
| 2079 | |
| 2080 /* If OLD is its frame's root_window, then replacement is the new | |
| 2081 root_window for that frame. */ | |
| 2082 | |
| 2083 if (EQ (old, FRAME_ROOT_WINDOW (XFRAME (o->frame)))) | |
| 2084 FRAME_ROOT_WINDOW (XFRAME (o->frame)) = replacement; | |
| 2085 | |
| 2086 WINDOW_LEFT (p) = WINDOW_LEFT (o); | |
| 2087 WINDOW_TOP (p) = WINDOW_TOP (o); | |
| 2088 WINDOW_WIDTH (p) = WINDOW_WIDTH (o); | |
| 2089 WINDOW_HEIGHT (p) = WINDOW_HEIGHT (o); | |
| 2090 | |
| 2091 p->next = tem = o->next; | |
| 2092 if (!NILP (tem)) | |
| 2093 XWINDOW (tem)->prev = replacement; | |
| 2094 | |
| 2095 p->prev = tem = o->prev; | |
| 2096 if (!NILP (tem)) | |
| 2097 XWINDOW (tem)->next = replacement; | |
| 2098 | |
| 2099 p->parent = tem = o->parent; | |
| 2100 if (!NILP (tem)) | |
| 2101 { | |
| 2102 if (EQ (XWINDOW (tem)->vchild, old)) | |
| 2103 XWINDOW (tem)->vchild = replacement; | |
| 2104 if (EQ (XWINDOW (tem)->hchild, old)) | |
| 2105 XWINDOW (tem)->hchild = replacement; | |
| 2106 } | |
| 2107 | |
| 2108 /* #### Here, if replacement is a vertical combination | |
| 2109 and so is its new parent, we should make replacement's | |
| 2110 children be children of that parent instead. */ | |
| 442 | 2111 |
| 2112 ERROR_CHECK_SUBWINDOW_CACHE (p); | |
| 2113 } | |
| 2114 | |
| 2115 static void | |
| 2116 window_unmap_subwindows (struct window* w) | |
| 2117 { | |
| 2118 assert (!NILP (w->subwindow_instance_cache)); | |
| 2119 elisp_maphash (unmap_subwindow_instance_cache_mapper, | |
| 2120 w->subwindow_instance_cache, (void*)1); | |
| 428 | 2121 } |
| 2122 | |
| 2123 /* we're deleting W; set the structure of W to indicate this. */ | |
| 2124 | |
| 2125 static void | |
| 2126 mark_window_as_deleted (struct window *w) | |
| 2127 { | |
| 442 | 2128 /* The window instance cache is going away now, so need to get the |
| 2129 cachels reset by redisplay. */ | |
| 2130 MARK_FRAME_SUBWINDOWS_CHANGED (XFRAME (WINDOW_FRAME (w))); | |
| 2131 | |
| 2132 /* The cache is going away. If we leave unmapping to | |
| 2133 reset_subwindow_cachels then we get in a situation where the | |
| 2134 domain (the window) has been deleted but we still need access to | |
| 2135 its attributes in order to unmap windows properly. Since the | |
| 2136 subwindows are going to get GC'd anyway as a result of the domain | |
| 2137 going away, it is safer to just unmap them all while we know the | |
| 2138 domain is still valid. */ | |
| 2139 ERROR_CHECK_SUBWINDOW_CACHE (w); | |
| 2140 window_unmap_subwindows (w); | |
| 2141 | |
| 617 | 2142 /* Free the extra data structures attached to windows immediately so |
| 2143 they don't sit around consuming excess space. They will be | |
| 2144 reinitialized by the window-configuration code as necessary. */ | |
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2145 finalize_window (wrap_window (w)); |
| 617 | 2146 |
| 1149 | 2147 /* Nobody should be accessing anything in this object any more, |
| 618 | 2148 and making them Qnil allows for better GC'ing in case a pointer |
| 2149 to the dead window continues to hang around. Zero all other | |
| 2150 structs in case someone tries to access something through them. | |
| 2151 | |
| 2152 (So, in point of fact, we zero out all of the "saved" slots, | |
| 2153 which are obviously restored from the window config, plus the | |
| 2154 slots which were already zeroed.) | |
| 617 | 2155 |
| 2156 As an example of why setting the values to Qnil is good, here | |
| 2157 is an old comment: | |
| 2158 | |
| 2159 In the loop | |
| 428 | 2160 (while t (split-window) (delete-window)) |
| 2161 we end up with a tree of deleted windows which are all connected | |
| 2162 through the `next' slot. This might not seem so bad, as they're | |
| 2163 deleted, and will presumably be GCed - but if even *one* of those | |
| 2164 windows is still being pointed to, by the user, or by a window | |
| 1149 | 2165 configuration, then *all* of those windows stick around. */ |
| 617 | 2166 |
| 618 | 2167 #define WINDOW_SLOT(slot) |
| 2168 #define WINDOW_SAVED_SLOT(slot, compare) w->slot = Qnil; | |
| 617 | 2169 #include "winslots.h" |
| 428 | 2170 |
| 618 | 2171 w->next = Qnil; |
| 2172 w->prev = Qnil; | |
| 2173 w->hchild = Qnil; | |
| 2174 w->vchild = Qnil; | |
| 2175 w->parent = Qnil; | |
| 2176 w->subwindow_instance_cache = Qnil; | |
| 2177 | |
| 428 | 2178 w->dead = 1; |
| 853 | 2179 note_object_deleted (wrap_window (w)); |
| 428 | 2180 } |
| 2181 | |
| 1207 | 2182 /* Check if window contains pwindow. */ |
| 2183 | |
| 2184 static int | |
| 2185 contains_window (Lisp_Object window, Lisp_Object pwindow) | |
| 2186 { | |
| 2187 while (!NILP (pwindow)) | |
| 2188 { | |
| 2189 if (EQ (window, pwindow)) | |
| 2190 return 1; | |
| 2191 pwindow = XWINDOW (pwindow)->parent; | |
| 2192 } | |
| 2193 return 0; | |
| 2194 } | |
| 2195 | |
| 428 | 2196 DEFUN ("delete-window", Fdelete_window, 0, 2, "", /* |
| 2197 Remove WINDOW from the display. Default is selected window. | |
| 444 | 2198 If window is the only one on its frame, the frame is deleted as well. |
| 428 | 2199 Normally, you cannot delete the last non-minibuffer-only frame (you must |
| 2200 use `save-buffers-kill-emacs' or `kill-emacs'). However, if optional | |
| 2201 second argument FORCE is non-nil, you can delete the last frame. (This | |
| 2202 will automatically call `save-buffers-kill-emacs'.) | |
| 2203 */ | |
| 2204 (window, force)) | |
| 2205 { | |
| 2206 /* This function can GC if this is the only window in the frame */ | |
| 2207 struct window *w; | |
| 2208 Lisp_Object parent; | |
| 2209 struct window *par; | |
| 2210 Lisp_Object frame; | |
| 2211 struct frame *f; | |
| 2212 struct device *d; | |
| 2213 | |
| 2214 /* Note: this function is called by other C code on non-leaf | |
| 2215 windows. */ | |
| 2216 | |
| 2217 /* Do the equivalent of decode_window() but don't error out on | |
| 2218 deleted window; it's OK to delete an already-deleted window. */ | |
| 2219 if (NILP (window)) | |
| 2220 window = Fselected_window (Qnil); | |
| 2221 else | |
| 2222 CHECK_WINDOW (window); | |
| 442 | 2223 |
| 428 | 2224 w = XWINDOW (window); |
| 2225 | |
| 2226 /* It's okay to delete an already-deleted window. */ | |
| 2227 if (! WINDOW_LIVE_P (w)) | |
| 2228 return Qnil; | |
| 2229 | |
| 853 | 2230 check_allowed_operation (OPERATION_DELETE_OBJECT, window, Qnil); |
| 2231 | |
| 428 | 2232 frame = WINDOW_FRAME (w); |
| 2233 f = XFRAME (frame); | |
| 2234 d = XDEVICE (FRAME_DEVICE (f)); | |
| 2235 | |
| 2236 if (TOP_LEVEL_WINDOW_P (w)) | |
| 2237 { | |
| 2238 if (NILP (memq_no_quit (frame, DEVICE_FRAME_LIST (d)))) | |
| 2239 /* this frame isn't fully initialized yet; don't blow up. */ | |
| 2240 return Qnil; | |
| 2241 | |
| 2242 if (MINI_WINDOW_P (XWINDOW (window))) | |
| 563 | 2243 signal_error (Qinvalid_operation, "Attempt to delete the minibuffer window", Qunbound); |
| 428 | 2244 |
| 2245 /* It has been suggested that it's a good thing for C-x 0 to have this | |
| 2246 behavior, but not such a good idea for #'delete-window to have it. | |
| 2247 Maybe C-x 0 should be bound to something else, or maybe frame | |
| 2248 deletion should only happen when this is called interactively. | |
| 2249 */ | |
| 2250 delete_frame_internal (f, !NILP (force), 0, 0); | |
| 2251 return Qnil; | |
| 2252 } | |
| 2253 | |
| 2254 /* At this point, we know the window has a parent. */ | |
| 2255 parent = w->parent; | |
| 2256 par = XWINDOW (parent); | |
| 2257 | |
| 2258 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f); | |
| 430 | 2259 /* It's quite likely that deleting a window will result in |
| 2260 subwindows needing to be deleted also (since they are cached | |
| 2261 per-window). So we mark them as changed, so that the cachels will | |
| 2262 get reset by redisplay and thus deleted subwindows can get | |
| 2263 GC'd. */ | |
| 2264 MARK_FRAME_SUBWINDOWS_CHANGED (f); | |
| 428 | 2265 |
| 2266 /* Are we trying to delete any frame's selected window? | |
| 2267 Note that we could be dealing with a non-leaf window | |
| 2268 where the selected window is one of our children. | |
| 2269 So, we check by scanning all the ancestors of the | |
| 2270 frame's selected window and comparing each one with | |
| 2271 WINDOW. */ | |
| 1207 | 2272 if (contains_window (window, FRAME_SELECTED_WINDOW (f))) |
| 2273 { | |
| 2274 Lisp_Object alternative; | |
| 2275 alternative = Fnext_window (window, Qlambda, Qnil, Qnil); | |
| 2276 | |
| 2277 /* #### */ | |
| 2278 /* If we're about to delete the selected window on the | |
| 2279 selected frame, then we should use Fselect_window to select | |
| 2280 the new window. On the other hand, if we're about to | |
| 2281 delete the selected window on any other frame, we shouldn't do | |
| 2282 anything but set the frame's selected_window slot. */ | |
| 2283 if (EQ (frame, Fselected_frame (Qnil))) | |
| 2284 Fselect_window (alternative, Qnil); | |
| 2285 else | |
| 2286 set_frame_selected_window (f, alternative); | |
| 2287 } | |
| 2288 | |
| 2289 /* Some display parameters (gutter display specifically) depend on | |
| 2290 FRAME_LAST_NONMINIBUF (f) to be set to a live window. Ensure that. */ | |
| 2291 if (contains_window (window, FRAME_LAST_NONMINIBUF_WINDOW (f))) | |
| 2292 f->last_nonminibuf_window = Fnext_window (window, Qlambda, Qnil, Qnil); | |
| 428 | 2293 |
| 2294 /* w->buffer is nil in a non-leaf window; in this case, | |
| 2295 get rid of the markers we maintain that point into that buffer. */ | |
| 2296 if (!NILP (w->buffer)) | |
| 2297 { | |
| 2298 unshow_buffer (w); | |
| 2299 unchain_marker (w->pointm[CURRENT_DISP]); | |
| 2300 unchain_marker (w->pointm[DESIRED_DISP]); | |
| 2301 unchain_marker (w->pointm[CMOTION_DISP]); | |
| 2302 unchain_marker (w->start[CURRENT_DISP]); | |
| 2303 unchain_marker (w->start[DESIRED_DISP]); | |
| 2304 unchain_marker (w->start[CMOTION_DISP]); | |
| 2305 unchain_marker (w->sb_point); | |
| 1149 | 2306 w->buffer = Qnil; |
| 428 | 2307 } |
| 2308 | |
| 2309 /* close up the hole in the sibling list */ | |
| 2310 if (!NILP (w->next)) | |
| 2311 XWINDOW (w->next)->prev = w->prev; | |
| 2312 if (!NILP (w->prev)) | |
| 2313 XWINDOW (w->prev)->next = w->next; | |
| 2314 if (EQ (window, par->hchild)) | |
| 2315 par->hchild = w->next; | |
| 2316 if (EQ (window, par->vchild)) | |
| 2317 par->vchild = w->next; | |
| 2318 | |
| 2319 /* Find one of our siblings to give our space to. */ | |
| 2320 { | |
| 2321 Lisp_Object sib = w->prev; | |
| 2322 if (NILP (sib)) | |
| 2323 { | |
| 2324 /* If w gives its space to its next sibling, that sibling needs | |
| 2325 to have its top/left side pulled back to where w's is. | |
| 2326 set_window_{height,width} will re-position the sibling's | |
| 2327 children. */ | |
| 2328 sib = w->next; | |
| 2329 WINDOW_TOP (XWINDOW (sib)) = WINDOW_TOP (w); | |
| 2330 WINDOW_LEFT (XWINDOW (sib)) = WINDOW_LEFT (w); | |
| 2331 } | |
| 2332 | |
| 2333 /* Stretch that sibling. */ | |
| 2334 if (!NILP (par->vchild)) | |
| 2335 set_window_pixheight | |
| 2336 (sib, (WINDOW_HEIGHT (XWINDOW (sib)) + WINDOW_HEIGHT (w)), 1); | |
| 2337 if (!NILP (par->hchild)) | |
| 2338 set_window_pixwidth | |
| 2339 (sib, (WINDOW_WIDTH (XWINDOW (sib)) + WINDOW_WIDTH (w)), 1); | |
| 2340 } | |
| 2341 | |
| 2342 /* If parent now has only one child, | |
| 2343 put the child into the parent's place. */ | |
| 2344 { | |
| 2345 Lisp_Object parchild = par->hchild; | |
| 2346 if (NILP (parchild)) | |
| 2347 parchild = par->vchild; | |
| 2348 if (NILP (XWINDOW (parchild)->next)) | |
| 2349 { | |
| 2350 replace_window (parent, parchild); | |
| 2351 mark_window_as_deleted (XWINDOW (parent)); | |
| 2352 } | |
| 2353 } | |
| 2354 | |
| 2355 /* Since we may be deleting combination windows, we must make sure that | |
| 2356 not only W but all its children have been marked as deleted. */ | |
| 2357 if (!NILP (w->hchild)) | |
| 2358 delete_all_subwindows (XWINDOW (w->hchild)); | |
| 2359 else if (!NILP (w->vchild)) | |
| 2360 delete_all_subwindows (XWINDOW (w->vchild)); | |
| 2361 | |
| 1752 | 2362 /* Warning: mark_window_as_deleted calls window_unmap_subwindows and |
| 2363 therefore redisplay, so it requires the mirror structure to be | |
| 2364 correct. We must dirty the mirror before it is called. */ | |
| 2365 f->mirror_dirty = 1; | |
| 2366 | |
| 428 | 2367 mark_window_as_deleted (w); |
| 2368 | |
| 2369 return Qnil; | |
| 2370 } | |
| 2371 | |
| 2372 | |
| 2373 DEFUN ("next-window", Fnext_window, 0, 4, 0, /* | |
| 442 | 2374 Return the next window after WINDOW in the canonical ordering of windows. |
| 428 | 2375 If omitted, WINDOW defaults to the selected window. |
| 2376 | |
| 2377 Optional second arg MINIBUF t means count the minibuffer window even | |
| 2378 if not active. MINIBUF nil or omitted means count the minibuffer iff | |
| 2379 it is active. MINIBUF neither t nor nil means not to count the | |
| 2380 minibuffer even if it is active. | |
| 2381 | |
| 2382 Several frames may share a single minibuffer; if the minibuffer | |
| 2383 counts, all windows on all frames that share that minibuffer count | |
| 2384 too. Therefore, `next-window' can be used to iterate through the | |
| 2385 set of windows even when the minibuffer is on another frame. If the | |
| 2386 minibuffer does not count, only windows from WINDOW's frame count. | |
| 2387 | |
| 444 | 2388 By default, only the windows in the selected frame are considered. |
| 2389 The optional argument WHICH-FRAMES changes this behavior: | |
| 2390 WHICH-FRAMES = `visible' means search windows on all visible frames. | |
| 448 | 2391 WHICH-FRAMES = 0 means search windows on all visible and iconified frames. |
| 444 | 2392 WHICH-FRAMES = t means search windows on all frames including invisible frames. |
| 2393 WHICH-FRAMES = a frame means search only windows on that frame. | |
| 2394 Anything else means restrict to the selected frame. | |
| 2395 | |
| 2396 The optional fourth argument WHICH-DEVICES further clarifies on which | |
| 2397 devices to search for frames as specified by WHICH-FRAMES. This value | |
| 2398 is only meaningful if WHICH-FRAMES is non-nil. | |
| 2399 If nil or omitted, search all devices on the selected console. | |
| 2400 If a device, only search that device. | |
| 2401 If a console, search all devices on that console. | |
| 2402 If a device type, search all devices of that type. | |
| 2403 If `window-system', search all window-system devices. | |
| 2404 Any other non-nil value means search all devices. | |
| 2405 | |
| 2406 If you use consistent values for MINIBUF, WHICH-FRAMES, and WHICH-DEVICES, | |
| 2407 you can use `next-window' to iterate through the entire cycle of | |
| 2408 acceptable windows, eventually ending up back at the window you started with. | |
| 428 | 2409 `previous-window' traverses the same cycle, in the reverse order. |
| 2410 */ | |
| 444 | 2411 (window, minibuf, which_frames, which_devices)) |
| 428 | 2412 { |
| 2413 Lisp_Object tem; | |
| 2414 Lisp_Object start_window; | |
| 2415 | |
| 2416 if (NILP (window)) | |
| 2417 window = Fselected_window (Qnil); | |
| 2418 else | |
| 2419 CHECK_LIVE_WINDOW (window); | |
| 2420 | |
| 2421 start_window = window; | |
| 2422 | |
| 2423 /* minibuf == nil may or may not include minibuffers. | |
| 2424 Decide if it does. */ | |
| 2425 if (NILP (minibuf)) | |
| 2426 minibuf = (minibuf_level ? minibuf_window : Qlambda); | |
| 2427 else if (! EQ (minibuf, Qt)) | |
| 2428 minibuf = Qlambda; | |
| 442 | 2429 /* Now `minibuf' is one of: |
| 2430 t => count all minibuffer windows | |
| 2431 lambda => count none of them | |
| 428 | 2432 or a specific minibuffer window (the active one) to count. */ |
| 2433 | |
| 444 | 2434 /* which_frames == nil doesn't specify which frames to include. */ |
| 2435 if (NILP (which_frames)) | |
| 2436 which_frames = (! EQ (minibuf, Qlambda) | |
| 428 | 2437 ? (FRAME_MINIBUF_WINDOW |
| 2438 (XFRAME | |
| 2439 (WINDOW_FRAME | |
| 2440 (XWINDOW (window))))) | |
| 2441 : Qnil); | |
| 444 | 2442 else if (EQ (which_frames, Qvisible)) |
| 428 | 2443 ; |
| 444 | 2444 else if (ZEROP (which_frames)) |
| 428 | 2445 ; |
| 444 | 2446 else if (FRAMEP (which_frames) && ! EQ (which_frames, Fwindow_frame (window))) |
| 2447 /* If which_frames is a frame and window arg isn't on that frame, just | |
| 428 | 2448 return the first window on the frame. */ |
| 444 | 2449 return frame_first_window (XFRAME (which_frames)); |
| 2450 else if (! EQ (which_frames, Qt)) | |
| 2451 which_frames = Qnil; | |
| 2452 /* Now `which_frames' is one of: | |
| 442 | 2453 t => search all frames |
| 2454 nil => search just the current frame | |
| 2455 visible => search just visible frames | |
| 2456 0 => search visible and iconified frames | |
| 2457 a window => search the frame that window belongs to. */ | |
| 428 | 2458 |
| 2459 /* Do this loop at least once, to get the next window, and perhaps | |
| 2460 again, if we hit the minibuffer and that is not acceptable. */ | |
| 2461 do | |
| 2462 { | |
| 2463 /* Find a window that actually has a next one. This loop | |
| 2464 climbs up the tree. */ | |
| 2465 while (tem = XWINDOW (window)->next, NILP (tem)) | |
| 2466 if (tem = XWINDOW (window)->parent, !NILP (tem)) | |
| 2467 window = tem; | |
| 2468 else /* window must be minibuffer window now */ | |
| 2469 { | |
| 2470 /* We've reached the end of this frame. | |
| 2471 Which other frames are acceptable? */ | |
| 2472 tem = WINDOW_FRAME (XWINDOW (window)); | |
| 2473 | |
| 444 | 2474 if (! NILP (which_frames)) |
| 428 | 2475 { |
| 442 | 2476 Lisp_Object tem1 = tem; |
| 444 | 2477 tem = next_frame (tem, which_frames, which_devices); |
| 442 | 2478 |
| 428 | 2479 /* In the case where the minibuffer is active, |
| 2480 and we include its frame as well as the selected one, | |
| 2481 next_frame may get stuck in that frame. | |
| 2482 If that happens, go back to the selected frame | |
| 2483 so we can complete the cycle. */ | |
| 2484 if (EQ (tem, tem1)) | |
| 793 | 2485 tem = wrap_frame (selected_frame ()); |
| 428 | 2486 } |
| 2487 | |
| 2488 tem = FRAME_ROOT_WINDOW (XFRAME (tem)); | |
| 2489 break; | |
| 2490 } | |
| 2491 | |
| 2492 window = tem; | |
| 2493 | |
| 2494 /* If we're in a combination window, find its first child and | |
| 2495 recurse on that. Otherwise, we've found the window we want. */ | |
| 2496 while (1) | |
| 2497 { | |
| 2498 if (!NILP (XWINDOW (window)->hchild)) | |
| 2499 window = XWINDOW (window)->hchild; | |
| 2500 else if (!NILP (XWINDOW (window)->vchild)) | |
| 2501 window = XWINDOW (window)->vchild; | |
| 2502 else break; | |
| 2503 } | |
| 2504 } | |
| 2505 /* Which windows are acceptable? | |
| 2506 Exit the loop and accept this window if | |
| 2507 this isn't a minibuffer window, | |
| 2508 or we're accepting all minibuffer windows, | |
| 2509 or this is the active minibuffer and we are accepting that one, or | |
| 2510 we've come all the way around and we're back at the original window. */ | |
| 2511 while (MINI_WINDOW_P (XWINDOW (window)) | |
| 2512 && ! EQ (minibuf, Qt) | |
| 2513 && ! EQ (minibuf, window) | |
| 2514 && ! EQ (window, start_window)); | |
| 2515 | |
| 2516 return window; | |
| 2517 } | |
| 2518 | |
| 2519 DEFUN ("previous-window", Fprevious_window, 0, 4, 0, /* | |
| 442 | 2520 Return the window preceding WINDOW in the canonical ordering of windows. |
| 428 | 2521 If omitted, WINDOW defaults to the selected window. |
| 2522 | |
| 2523 Optional second arg MINIBUF t means count the minibuffer window even | |
| 2524 if not active. MINIBUF nil or omitted means count the minibuffer iff | |
| 2525 it is active. MINIBUF neither t nor nil means not to count the | |
| 2526 minibuffer even if it is active. | |
| 2527 | |
| 2528 Several frames may share a single minibuffer; if the minibuffer | |
| 2529 counts, all windows on all frames that share that minibuffer count | |
| 2530 too. Therefore, `previous-window' can be used to iterate through | |
| 2531 the set of windows even when the minibuffer is on another frame. If | |
| 442 | 2532 the minibuffer does not count, only windows from WINDOW's frame count. |
| 2533 | |
| 444 | 2534 By default, only the windows in the selected frame are considered. |
| 2535 The optional argument WHICH-FRAMES changes this behavior: | |
| 2536 WHICH-FRAMES = `visible' means search windows on all visible frames. | |
| 448 | 2537 WHICH-FRAMES = 0 means search windows on all visible and iconified frames. |
| 444 | 2538 WHICH-FRAMES = t means search windows on all frames including invisible frames. |
| 2539 WHICH-FRAMES = a frame means search only windows on that frame. | |
| 2540 Anything else means restrict to the selected frame. | |
| 2541 | |
| 2542 The optional fourth argument WHICH-DEVICES further clarifies on which | |
| 2543 devices to search for frames as specified by WHICH-FRAMES. This value | |
| 2544 is only meaningful if WHICH-FRAMES is non-nil. | |
| 2545 If nil or omitted, search all devices on the selected console. | |
| 2546 If a device, only search that device. | |
| 2547 If a console, search all devices on that console. | |
| 2548 If a device type, search all devices of that type. | |
| 2549 If `window-system', search all window-system devices. | |
| 2550 Any other non-nil value means search all devices. | |
| 2551 | |
| 2552 If you use consistent values for MINIBUF, WHICH-FRAMES, and WHICH-DEVICES, | |
| 2553 you can use `previous-window' to iterate through the entire cycle of | |
| 2554 acceptable windows, eventually ending up back at the window you started with. | |
| 428 | 2555 `next-window' traverses the same cycle, in the reverse order. |
| 2556 */ | |
| 444 | 2557 (window, minibuf, which_frames, devices)) |
| 428 | 2558 { |
| 2559 Lisp_Object tem; | |
| 2560 Lisp_Object start_window; | |
| 2561 | |
| 2562 if (NILP (window)) | |
| 2563 window = Fselected_window (Qnil); | |
| 2564 else | |
| 2565 CHECK_LIVE_WINDOW (window); | |
| 2566 | |
| 2567 start_window = window; | |
| 2568 | |
| 2569 /* minibuf == nil may or may not include minibuffers. | |
| 2570 Decide if it does. */ | |
| 2571 if (NILP (minibuf)) | |
| 2572 minibuf = (minibuf_level ? minibuf_window : Qlambda); | |
| 2573 else if (! EQ (minibuf, Qt)) | |
| 2574 minibuf = Qlambda; | |
| 442 | 2575 /* Now `minibuf' is one of: |
| 2576 t => count all minibuffer windows | |
| 2577 lambda => count none of them | |
| 428 | 2578 or a specific minibuffer window (the active one) to count. */ |
| 2579 | |
| 444 | 2580 /* which_frames == nil doesn't specify which frames to include. |
| 428 | 2581 Decide which frames it includes. */ |
| 444 | 2582 if (NILP (which_frames)) |
| 2583 which_frames = (! EQ (minibuf, Qlambda) | |
| 428 | 2584 ? (FRAME_MINIBUF_WINDOW |
| 2585 (XFRAME | |
| 2586 (WINDOW_FRAME | |
| 2587 (XWINDOW (window))))) | |
| 2588 : Qnil); | |
| 444 | 2589 else if (EQ (which_frames, Qvisible)) |
| 428 | 2590 ; |
| 444 | 2591 else if (ZEROP (which_frames)) |
| 428 | 2592 ; |
| 444 | 2593 else if (FRAMEP (which_frames) && ! EQ (which_frames, Fwindow_frame (window))) |
| 2594 /* If which_frames is a frame and window arg isn't on that frame, just | |
| 428 | 2595 return the first window on the frame. */ |
| 444 | 2596 return frame_first_window (XFRAME (which_frames)); |
| 2597 else if (! EQ (which_frames, Qt)) | |
| 2598 which_frames = Qnil; | |
| 2599 /* Now `which_frames' is one of: | |
| 442 | 2600 t => search all frames |
| 2601 nil => search just the current frame | |
| 2602 visible => search just visible frames | |
| 2603 0 => search visible and iconified frames | |
| 2604 a window => search the frame that window belongs to. */ | |
| 428 | 2605 |
| 2606 /* Do this loop at least once, to get the next window, and perhaps | |
| 2607 again, if we hit the minibuffer and that is not acceptable. */ | |
| 2608 do | |
| 2609 { | |
| 2610 /* Find a window that actually has a next one. This loop | |
| 2611 climbs up the tree. */ | |
| 2612 while (tem = XWINDOW (window)->prev, NILP (tem)) | |
| 2613 if (tem = XWINDOW (window)->parent, !NILP (tem)) | |
| 2614 window = tem; | |
| 2615 else /* window must be minibuffer window now */ | |
| 2616 { | |
| 2617 /* We have found the top window on the frame. | |
| 2618 Which frames are acceptable? */ | |
| 2619 tem = WINDOW_FRAME (XWINDOW (window)); | |
| 2620 | |
| 444 | 2621 if (! NILP (which_frames)) |
| 442 | 2622 /* It's actually important that we use previous_frame here, |
| 428 | 2623 rather than next_frame. All the windows acceptable |
| 2624 according to the given parameters should form a ring; | |
| 2625 Fnext_window and Fprevious_window should go back and | |
| 2626 forth around the ring. If we use next_frame here, | |
| 2627 then Fnext_window and Fprevious_window take different | |
| 2628 paths through the set of acceptable windows. | |
| 2629 window_loop assumes that these `ring' requirement are | |
| 2630 met. */ | |
| 2631 { | |
| 442 | 2632 Lisp_Object tem1 = tem; |
| 444 | 2633 tem = previous_frame (tem, which_frames, devices); |
| 428 | 2634 /* In the case where the minibuffer is active, |
| 2635 and we include its frame as well as the selected one, | |
| 2636 next_frame may get stuck in that frame. | |
| 2637 If that happens, go back to the selected frame | |
| 2638 so we can complete the cycle. */ | |
| 2639 if (EQ (tem, tem1)) | |
| 793 | 2640 tem = wrap_frame (selected_frame ()); |
| 428 | 2641 } |
| 2642 | |
| 2643 /* If this frame has a minibuffer, find that window first, | |
| 2644 because it is conceptually the last window in that frame. */ | |
| 2645 if (FRAME_HAS_MINIBUF_P (XFRAME (tem))) | |
| 2646 tem = FRAME_MINIBUF_WINDOW (XFRAME (tem)); | |
| 2647 else | |
| 2648 tem = FRAME_ROOT_WINDOW (XFRAME (tem)); | |
| 2649 | |
| 2650 break; | |
| 2651 } | |
| 2652 | |
| 2653 window = tem; | |
| 2654 | |
| 2655 /* If we're in a combination window, find its first child and | |
| 2656 recurse on that. Otherwise, we've found the window we want. */ | |
| 2657 while (1) | |
| 2658 { | |
| 2659 if (!NILP (XWINDOW (window)->hchild)) | |
| 2660 window = XWINDOW (window)->hchild; | |
| 2661 else if (!NILP (XWINDOW (window)->vchild)) | |
| 2662 window = XWINDOW (window)->vchild; | |
| 2663 else break; | |
| 2664 while (tem = XWINDOW (window)->next, !NILP (tem)) | |
| 2665 window = tem; | |
| 2666 } | |
| 2667 } | |
| 2668 /* Which windows are acceptable? | |
| 2669 Exit the loop and accept this window if | |
| 2670 this isn't a minibuffer window, | |
| 2671 or we're accepting all minibuffer windows, | |
| 2672 or this is the active minibuffer and we are accepting that one, or | |
| 2673 we've come all the way around and we're back at the original window. */ | |
| 2674 while (MINI_WINDOW_P (XWINDOW (window)) | |
| 2675 && ! EQ (minibuf, Qt) | |
| 2676 && ! EQ (minibuf, window) | |
| 2677 && ! EQ (window, start_window)); | |
| 2678 | |
| 2679 return window; | |
| 2680 } | |
| 2681 | |
| 2682 DEFUN ("next-vertical-window", Fnext_vertical_window, 0, 1, 0, /* | |
| 2683 Return the next window which is vertically after WINDOW. | |
| 2684 */ | |
| 2685 (window)) | |
| 2686 { | |
| 2687 Lisp_Object root; | |
| 2688 struct window *w = decode_window (window); | |
| 793 | 2689 window = wrap_window (w); |
| 428 | 2690 |
| 2691 if (MINI_WINDOW_P (XWINDOW (window))) | |
| 2692 return Qnil; | |
| 2693 | |
| 2694 root = FRAME_ROOT_WINDOW (XFRAME (WINDOW_FRAME (XWINDOW (window)))); | |
| 2695 | |
| 2696 if (EQ (window, root)) | |
| 2697 { | |
| 2698 while (1) | |
| 2699 if (!NILP (XWINDOW (window)->hchild)) | |
| 2700 window = XWINDOW (window)->hchild; | |
| 2701 else if (!NILP (XWINDOW (window)->vchild)) | |
| 2702 window = XWINDOW (window)->vchild; | |
| 2703 else | |
| 2704 return window; | |
| 2705 } | |
| 2706 | |
| 2707 do | |
| 2708 { | |
| 2709 if (!NILP (XWINDOW (window)->parent) && | |
| 2710 !NILP (XWINDOW (XWINDOW (window)->parent)->vchild)) | |
| 2711 { | |
| 2712 if (!NILP (XWINDOW (window)->next)) | |
| 2713 return XWINDOW (window)->next; | |
| 2714 else | |
| 2715 window = XWINDOW (window)->parent; | |
| 2716 } | |
| 2717 else | |
| 2718 window = XWINDOW (window)->parent; | |
| 2719 } | |
| 2720 while (!EQ (window, root)); | |
| 2721 | |
| 2722 while (1) | |
| 2723 if (!NILP (XWINDOW (window)->hchild)) | |
| 2724 window = XWINDOW (window)->hchild; | |
| 2725 else if (!NILP (XWINDOW (window)->vchild)) | |
| 2726 window = XWINDOW (window)->vchild; | |
| 2727 else | |
| 2728 return window; | |
| 2729 } | |
| 2730 | |
| 2731 DEFUN ("other-window", Fother_window, 1, 3, "p", /* | |
| 444 | 2732 Select the COUNT'th different window on this frame. |
| 428 | 2733 All windows on current frame are arranged in a cyclic order. |
| 444 | 2734 This command selects the window COUNT steps away in that order. |
| 2735 A negative COUNT moves in the opposite order. | |
| 2736 | |
| 2737 By default, only the windows in the selected frame are considered. | |
| 2738 The optional argument WHICH-FRAMES changes this behavior: | |
| 2739 WHICH-FRAMES = `visible' means search windows on all visible frames. | |
| 448 | 2740 WHICH-FRAMES = 0 means search windows on all visible and iconified frames. |
| 444 | 2741 WHICH-FRAMES = t means search windows on all frames including invisible frames. |
| 2742 WHICH-FRAMES = a frame means search only windows on that frame. | |
| 2743 Anything else means restrict to the selected frame. | |
| 2744 | |
| 2745 The optional argument WHICH-DEVICES further clarifies on which devices | |
| 2746 to search for frames as specified by WHICH-FRAMES. This value is only | |
| 2747 meaningful if WHICH-FRAMES is non-nil. | |
| 2748 If nil or omitted, search all devices on the selected console. | |
| 2749 If a device, only search that device. | |
| 2750 If a console, search all devices on that console. | |
| 2751 If a device type, search all devices of that type. | |
| 2752 If `window-system', search all window-system devices. | |
| 2753 Any other non-nil value means search all devices. | |
| 428 | 2754 */ |
| 444 | 2755 (count, which_frames, which_devices)) |
| 428 | 2756 { |
| 2757 int i; | |
| 2758 Lisp_Object w; | |
| 2759 | |
|
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Aidan Kehoe <kehoea@parhasard.net>
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5474
diff
changeset
|
2760 CHECK_FIXNUM (count); |
| 428 | 2761 w = Fselected_window (Qnil); |
|
5581
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
2762 i = XFIXNUM (count); |
| 428 | 2763 |
| 2764 while (i > 0) | |
| 2765 { | |
| 444 | 2766 w = Fnext_window (w, Qnil, which_frames, which_devices); |
| 428 | 2767 i--; |
| 2768 } | |
| 2769 while (i < 0) | |
| 2770 { | |
| 444 | 2771 w = Fprevious_window (w, Qnil, which_frames, which_devices); |
| 428 | 2772 i++; |
| 2773 } | |
| 2774 Fselect_window (w, Qnil); | |
| 2775 return Qnil; | |
| 2776 } | |
| 2777 | |
| 2778 | |
| 2779 /* Look at all windows, performing an operation specified by TYPE | |
| 2780 with argument OBJ. | |
| 2781 | |
| 2782 If FRAMES is Qt, look at all frames, if Qnil, look at just the selected | |
| 2783 frame. If FRAMES is a frame, just look at windows on that frame. | |
| 2784 If MINI is non-zero, perform the operation on minibuffer windows too. | |
| 2785 */ | |
| 2786 | |
| 2787 enum window_loop | |
| 2788 { | |
| 2789 WINDOW_LOOP_UNUSED, | |
| 2790 GET_BUFFER_WINDOW, /* Arg is buffer */ | |
| 2791 GET_LRU_WINDOW, /* Arg is t for full-width windows only */ | |
| 2792 DELETE_OTHER_WINDOWS, /* Arg is window not to delete */ | |
| 2793 DELETE_BUFFER_WINDOWS, /* Arg is buffer */ | |
| 2794 GET_LARGEST_WINDOW, | |
| 2795 GET_BUFFER_WINDOW_COUNT, /* Arg is buffer */ | |
| 2796 GET_BUFFER_MRU_WINDOW /* Arg is buffer */ | |
| 2797 }; | |
| 2798 | |
| 2799 static Lisp_Object | |
| 2800 window_loop (enum window_loop type, | |
| 2801 Lisp_Object obj, | |
| 2802 int mini, | |
| 444 | 2803 Lisp_Object which_frames, |
| 428 | 2804 int dedicated_too, |
| 444 | 2805 Lisp_Object which_devices) |
| 428 | 2806 { |
| 448 | 2807 /* This function can GC if type == DELETE_BUFFER_WINDOWS */ |
| 428 | 2808 Lisp_Object w; |
| 2809 Lisp_Object best_window = Qnil; | |
| 2810 Lisp_Object next_window; | |
| 2811 Lisp_Object last_window; | |
| 2812 struct frame *frame; | |
| 2813 Lisp_Object frame_arg = Qt; | |
| 2814 int count = 0; /* for GET_BUFFER_WINDOW_COUNT */ | |
| 2815 /* #### I think the change of "precomputing" last_window and next_window | |
| 2816 * #### catch the lossage this is meant(?) to punt on... | |
| 2817 */ | |
| 2818 int lose_lose = 0; | |
| 2819 Lisp_Object devcons, concons; | |
| 2820 | |
| 2821 /* If we're only looping through windows on a particular frame, | |
| 2822 FRAME points to that frame. If we're looping through windows | |
| 2823 on all frames, FRAME is 0. */ | |
| 444 | 2824 if (FRAMEP (which_frames)) |
| 2825 frame = XFRAME (which_frames); | |
| 2826 else if (NILP (which_frames)) | |
| 428 | 2827 frame = selected_frame (); |
| 2828 else | |
| 2829 frame = 0; | |
| 442 | 2830 |
| 2831 /* FRAME_ARG is Qlambda to stick to one frame, | |
| 2832 Qvisible to consider all visible frames, | |
| 2833 or Qt otherwise. */ | |
| 428 | 2834 if (frame) |
| 2835 frame_arg = Qlambda; | |
| 444 | 2836 else if (ZEROP (which_frames)) |
| 2837 frame_arg = which_frames; | |
| 2838 else if (EQ (which_frames, Qvisible)) | |
| 2839 frame_arg = which_frames; | |
| 428 | 2840 |
| 2841 DEVICE_LOOP_NO_BREAK (devcons, concons) | |
| 2842 { | |
| 2843 Lisp_Object device = XCAR (devcons); | |
| 2844 Lisp_Object the_frame; | |
| 2845 | |
| 2846 if (frame) | |
| 793 | 2847 the_frame = wrap_frame (frame); |
| 428 | 2848 else |
| 2849 the_frame = DEVICE_SELECTED_FRAME (XDEVICE (device)); | |
| 2850 | |
| 2851 if (NILP (the_frame)) | |
| 2852 continue; | |
| 2853 | |
| 444 | 2854 if (!device_matches_device_spec (device, |
| 2855 NILP (which_devices) ? | |
| 2856 FRAME_CONSOLE (XFRAME (the_frame)) : | |
| 2857 which_devices)) | |
| 428 | 2858 continue; |
| 2859 | |
| 2860 /* Pick a window to start with. */ | |
| 2861 if (WINDOWP (obj)) | |
| 2862 w = obj; | |
| 2863 else | |
| 2864 w = FRAME_SELECTED_WINDOW (XFRAME (the_frame)); | |
| 2865 | |
| 2866 /* Figure out the last window we're going to mess with. Since | |
| 2867 Fnext_window, given the same options, is guaranteed to go in a | |
| 2868 ring, we can just use Fprevious_window to find the last one. | |
| 2869 | |
| 2870 We can't just wait until we hit the first window again, | |
| 2871 because it might be deleted. */ | |
| 2872 | |
| 707 | 2873 last_window = Fprevious_window (w, mini ? Qt : Qnil, frame_arg, device); |
| 428 | 2874 |
| 2875 best_window = Qnil; | |
| 2876 for (;;) | |
| 2877 { | |
| 2878 struct window *p = XWINDOW (w); | |
| 2879 | |
| 2880 /* Pick the next window now, since some operations will delete | |
| 2881 the current window. */ | |
| 442 | 2882 next_window = Fnext_window (w, mini ? Qt : Qnil, frame_arg, device); |
| 428 | 2883 |
| 2884 /* #### Still needed ?? */ | |
| 2885 /* Given the outstanding quality of the rest of this code, | |
| 2886 I feel no shame about putting this piece of shit in. */ | |
| 2887 if (++lose_lose >= 500) | |
| 707 | 2888 { |
| 2500 | 2889 /* Call to ABORT() added by Darryl Okahata (16 Nov. 2001), |
| 707 | 2890 at Ben's request, to catch any remaining bugs. |
| 2891 | |
| 2892 If you find that XEmacs is aborting here, and you | |
| 2893 need to be up and running ASAP, it should be safe to | |
| 2500 | 2894 comment out the following ABORT(), as long as you |
| 707 | 2895 leave the "break;" alone. */ |
| 2500 | 2896 ABORT(); |
| 707 | 2897 break; /* <--- KEEP THIS HERE! Do not delete! */ |
| 2898 } | |
| 428 | 2899 |
| 2900 /* Note that we do not pay attention here to whether | |
| 2901 the frame is visible, since Fnext_window skips non-visible frames | |
| 2902 if that is desired, under the control of frame_arg. */ | |
| 2903 if (! MINI_WINDOW_P (p) | |
| 2904 || (mini && minibuf_level > 0)) | |
| 2905 switch (type) | |
| 2906 { | |
| 2907 case GET_BUFFER_WINDOW: | |
| 2908 { | |
| 2909 if (XBUFFER (p->buffer) == XBUFFER (obj)) | |
| 2910 return w; | |
| 2911 break; | |
| 2912 } | |
| 2913 | |
| 2914 case GET_BUFFER_WINDOW_COUNT: | |
| 2915 { | |
| 2916 if (XBUFFER (p->buffer) == XBUFFER (obj)) | |
| 2917 count++; | |
| 2918 break; | |
| 2919 } | |
| 2920 | |
| 2921 case GET_LRU_WINDOW: | |
| 2922 { | |
| 2923 /* t as arg means consider only full-width windows */ | |
| 2924 if (!NILP (obj) | |
| 2925 && !window_full_width_p (p)) | |
| 2926 break; | |
| 2927 /* Ignore dedicated windows and minibuffers. */ | |
| 2928 if (MINI_WINDOW_P (p) | |
| 2929 || (dedicated_too ? 0 : !NILP (p->dedicated))) | |
| 2930 break; | |
| 2931 if (NILP (best_window) | |
|
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Aidan Kehoe <kehoea@parhasard.net>
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diff
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|
2932 || (XFIXNUM (XWINDOW (best_window)->use_time) |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
2933 > XFIXNUM (p->use_time))) |
| 428 | 2934 best_window = w; |
| 2935 break; | |
| 2936 } | |
| 2937 | |
| 2938 case GET_BUFFER_MRU_WINDOW: | |
| 2939 { | |
| 2940 /* #### what about the first check in GET_LRU_WINDOW? */ | |
| 2941 /* Ignore dedicated windows and minibuffers. */ | |
| 2942 if (MINI_WINDOW_P (p) | |
| 2943 || (dedicated_too ? 0 : !NILP (p->dedicated))) | |
| 2944 break; | |
| 2945 | |
| 2946 if (XBUFFER (p->buffer) == XBUFFER (obj)) | |
| 2947 { | |
| 2948 if (NILP (best_window) | |
|
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
2949 || (XFIXNUM (XWINDOW (best_window)->use_time) |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
2950 < XFIXNUM (p->use_time))) |
| 428 | 2951 best_window = w; |
| 2952 } | |
| 2953 break; | |
| 2954 } | |
| 2955 | |
| 2956 case DELETE_OTHER_WINDOWS: | |
| 2957 { | |
| 2958 /* Don't delete the last window on a frame; this can | |
| 2959 happen when the minibuffer is selected, and would | |
| 2960 cause the frame to be deleted. */ | |
| 2961 if (p != XWINDOW (obj) && !TOP_LEVEL_WINDOW_P (XWINDOW (w))) | |
| 2962 Fdelete_window (w, Qnil); | |
| 2963 break; | |
| 2964 } | |
| 2965 | |
| 2966 case DELETE_BUFFER_WINDOWS: | |
| 2967 { | |
| 2968 if (EQ (p->buffer, obj)) | |
| 2969 { | |
| 2970 struct frame *f = XFRAME (WINDOW_FRAME (p)); | |
| 2971 | |
| 2972 /* If this window is dedicated, and in a frame | |
| 2973 of its own, kill the frame. */ | |
| 2974 if (EQ (w, FRAME_ROOT_WINDOW (f)) | |
| 2975 && !NILP (p->dedicated) | |
| 1979 | 2976 && (allow_deletion_of_last_visible_frame |
| 2977 || other_visible_frames (f))) | |
| 428 | 2978 { |
| 2979 /* Skip the other windows on this frame. | |
| 2980 There might be one, the minibuffer! */ | |
| 2981 if (! EQ (w, last_window)) | |
| 2982 while (f == XFRAME (WINDOW_FRAME | |
| 2983 (XWINDOW (next_window)))) | |
| 2984 { | |
| 2985 /* As we go, check for the end of the | |
| 2986 loop. We mustn't start going | |
| 2987 around a second time. */ | |
| 2988 if (EQ (next_window, last_window)) | |
| 2989 { | |
| 2990 last_window = w; | |
| 2991 break; | |
| 2992 } | |
| 2993 next_window = Fnext_window (next_window, | |
| 2994 mini ? Qt : Qnil, | |
| 2995 frame_arg, Qt); | |
| 2996 } | |
| 2997 /* Now we can safely delete the frame. */ | |
| 2998 Fdelete_frame (WINDOW_FRAME (p), Qnil); | |
| 2999 } | |
| 3000 else | |
| 3001 /* If we're deleting the buffer displayed in | |
| 3002 the only window on the frame, find a new | |
| 3003 buffer to display there. */ | |
| 3004 if (NILP (p->parent)) | |
| 3005 { | |
| 3006 Lisp_Object new_buffer; | |
| 3007 new_buffer = Fother_buffer (obj, Qnil, Qnil); | |
| 3008 if (NILP (new_buffer)) | |
| 3009 new_buffer = Fget_buffer_create (QSscratch); | |
| 440 | 3010 Fset_window_buffer (w, new_buffer, Qnil); |
| 428 | 3011 if (EQ (w, Fselected_window (Qnil))) |
| 3012 Fset_buffer (p->buffer); | |
| 3013 } | |
| 3014 else | |
| 3015 Fdelete_window (w, Qnil); | |
| 3016 } | |
| 3017 break; | |
| 3018 } | |
| 3019 | |
| 3020 case GET_LARGEST_WINDOW: | |
| 3021 { | |
| 3022 /* Ignore dedicated windows and minibuffers. */ | |
| 3023 if (MINI_WINDOW_P (p) | |
| 3024 || (dedicated_too ? 0 : !NILP (p->dedicated))) | |
| 3025 break; | |
| 3026 { | |
| 3027 /* write the check as follows to avoid tripping | |
| 3028 error_check_window() --ben */ | |
| 3029 struct window *b = NILP (best_window) ? 0 : | |
| 3030 XWINDOW (best_window); | |
| 3031 if (NILP (best_window) | |
| 3032 || ((WINDOW_HEIGHT (p) * WINDOW_WIDTH (p)) | |
| 3033 > (WINDOW_HEIGHT (b) * WINDOW_WIDTH (b)))) | |
| 3034 best_window = w; | |
| 3035 } | |
| 3036 break; | |
| 3037 } | |
| 3038 | |
| 3039 default: | |
| 2500 | 3040 ABORT (); |
| 428 | 3041 } |
| 3042 | |
| 3043 if (EQ (w, last_window)) | |
| 3044 break; | |
| 3045 | |
| 3046 w = next_window; | |
| 3047 } | |
| 3048 } | |
| 3049 | |
|
5581
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
3050 return type == GET_BUFFER_WINDOW_COUNT ? make_fixnum (count) : best_window; |
| 428 | 3051 } |
| 3052 | |
| 3053 #if 0 /* not currently used */ | |
| 3054 | |
| 3055 int | |
| 3056 buffer_window_count (struct buffer *b, struct frame *f) | |
| 3057 { | |
| 3058 Lisp_Object buffer, frame; | |
| 3059 | |
| 793 | 3060 frame = wrap_frame (f); |
| 3061 buffer = wrap_buffer (b); | |
| 428 | 3062 |
|
5581
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
3063 return XFIXNUM (window_loop (GET_BUFFER_WINDOW_COUNT, buffer, 0, frame, 1, |
| 428 | 3064 Qnil)); |
| 3065 } | |
| 3066 | |
| 3067 int | |
| 3068 buffer_window_mru (struct window *w) | |
| 3069 { | |
| 3070 Lisp_Object window = | |
| 3071 window_loop (GET_BUFFER_MRU_WINDOW, w->buffer, 0, w->frame, 1, Qnil); | |
| 3072 | |
| 3073 if (NILP (window)) | |
| 3074 return 0; | |
| 3075 else if (XWINDOW (window) == w) | |
| 3076 return 1; | |
| 3077 else | |
| 3078 return 0; | |
| 3079 } | |
| 3080 | |
| 3081 #endif | |
| 3082 | |
| 3083 | |
| 3084 DEFUN ("get-lru-window", Fget_lru_window, 0, 2, 0, /* | |
| 3085 Return the window least recently selected or used for display. | |
| 444 | 3086 |
| 3087 By default, only the windows in the selected frame are considered. | |
| 3088 The optional argument WHICH-FRAMES changes this behavior: | |
| 3089 If optional argument WHICH-FRAMES is `visible', search all visible frames. | |
| 3090 If WHICH-FRAMES is 0, search all visible and iconified frames. | |
| 3091 If WHICH-FRAMES is t, search all frames. | |
| 3092 If WHICH-FRAMES is nil, search only the selected frame. | |
| 3093 If WHICH-FRAMES is a frame, search only that frame. | |
| 3094 | |
| 3095 The optional argument WHICH-DEVICES further clarifies on which devices | |
| 3096 to search for frames as specified by WHICH-FRAMES. This value is only | |
| 3097 meaningful if WHICH-FRAMES is non-nil. | |
| 3098 If nil or omitted, search all devices on the selected console. | |
| 3099 If a device, only search that device. | |
| 3100 If a console, search all devices on that console. | |
| 3101 If a device type, search all devices of that type. | |
| 3102 If `window-system', search all devices on window-system consoles. | |
| 3103 Any other non-nil value means search all devices. | |
| 428 | 3104 */ |
| 444 | 3105 (which_frames, which_devices)) |
| 428 | 3106 { |
| 3107 Lisp_Object w; | |
| 3108 /* First try for a non-dedicated window that is full-width */ | |
| 444 | 3109 w = window_loop (GET_LRU_WINDOW, Qt, 0, which_frames, 0, which_devices); |
| 428 | 3110 if (!NILP (w) && !EQ (w, Fselected_window (Qnil))) |
| 3111 return w; | |
| 3112 | |
| 3113 /* Then try for any non-dedicated window */ | |
| 444 | 3114 w = window_loop (GET_LRU_WINDOW, Qnil, 0, which_frames, 0, which_devices); |
| 428 | 3115 if (!NILP (w) && !EQ (w, Fselected_window (Qnil))) |
| 3116 return w; | |
| 3117 | |
| 3118 #if 0 | |
| 3119 /* FSFmacs never returns a dedicated window here. If we do, | |
| 3120 it makes `display-buffer' not work right. #### All of this | |
| 3121 shit is so disgusting and awful that it needs to be rethought | |
| 3122 from scratch. */ | |
| 3123 /* then try for a dedicated window that is full-width */ | |
| 444 | 3124 w = window_loop (GET_LRU_WINDOW, Qt, 0, which_frames, 1, which_devices); |
| 428 | 3125 if (!NILP (w) && !EQ (w, Fselected_window (Qnil))) |
| 3126 return w; | |
| 3127 | |
| 3128 /* If none of them, then all windows, dedicated or not. */ | |
| 444 | 3129 w = window_loop (GET_LRU_WINDOW, Qnil, 0, which_frames, 1, which_devices); |
| 428 | 3130 |
| 3131 /* At this point we damn well better have found something. */ | |
|
5050
6f2158fa75ed
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Ben Wing <ben@xemacs.org>
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4967
diff
changeset
|
3132 assert (!NILP (w)); |
| 428 | 3133 #endif |
| 3134 | |
| 3135 return w; | |
| 3136 } | |
| 3137 | |
| 3138 DEFUN ("get-largest-window", Fget_largest_window, 0, 2, 0, /* | |
| 3139 Return the window largest in area. | |
| 444 | 3140 |
| 3141 By default, only the windows in the selected frame are considered. | |
| 3142 The optional argument WHICH-FRAMES changes this behavior: | |
| 3143 If optional argument WHICH-FRAMES is `visible', search all visible frames. | |
| 3144 If WHICH-FRAMES is 0, search all visible and iconified frames. | |
| 3145 If WHICH-FRAMES is t, search all frames. | |
| 3146 If WHICH-FRAMES is nil, search only the selected frame. | |
| 3147 If WHICH-FRAMES is a frame, search only that frame. | |
| 3148 | |
| 3149 The optional argument WHICH-DEVICES further clarifies on which devices | |
| 3150 to search for frames as specified by WHICH-FRAMES. This value is only | |
| 3151 meaningful if WHICH-FRAMES is non-nil. | |
| 3152 If nil or omitted, search all devices on the selected console. | |
| 3153 If a device, only search that device. | |
| 3154 If a console, search all devices on that console. | |
| 3155 If a device type, search all devices of that type. | |
| 3156 If `window-system', search all devices on window-system consoles. | |
| 3157 Any other non-nil value means search all devices. | |
| 428 | 3158 */ |
| 444 | 3159 (which_frames, which_devices)) |
| 428 | 3160 { |
| 3161 /* Don't search dedicated windows because FSFmacs doesn't. | |
| 3162 This stuff is all black magic so don't try to apply common | |
| 3163 sense to it. */ | |
| 444 | 3164 return window_loop (GET_LARGEST_WINDOW, Qnil, 0, |
| 3165 which_frames, 0, which_devices); | |
| 428 | 3166 } |
| 3167 | |
| 3168 DEFUN ("get-buffer-window", Fget_buffer_window, 1, 3, 0, /* | |
| 3169 Return a window currently displaying BUFFER, or nil if none. | |
| 444 | 3170 |
| 3171 By default, only the windows in the selected frame are considered. | |
| 3172 The optional argument WHICH-FRAMES changes this behavior: | |
| 3173 If optional argument WHICH-FRAMES is `visible', search all visible frames. | |
| 3174 If WHICH-FRAMES is 0, search all visible and iconified frames. | |
| 3175 If WHICH-FRAMES is t, search all frames. | |
| 3176 If WHICH-FRAMES is nil, search only the selected frame. | |
| 3177 If WHICH-FRAMES is a frame, search only that frame. | |
| 3178 | |
| 3179 The optional argument WHICH-DEVICES further clarifies on which devices | |
| 3180 to search for frames as specified by WHICH-FRAMES. This value is only | |
| 3181 meaningful if WHICH-FRAMES is non-nil. | |
| 3182 If nil or omitted, search all devices on the selected console. | |
| 3183 If a device, only search that device. | |
| 3184 If a console, search all devices on that console. | |
| 3185 If a device type, search all devices of that type. | |
| 3186 If `window-system', search all devices on window-system consoles. | |
| 3187 Any other non-nil value means search all devices. | |
| 428 | 3188 */ |
| 444 | 3189 (buffer, which_frames, which_devices)) |
| 428 | 3190 { |
| 3191 buffer = Fget_buffer (buffer); | |
| 3192 if (BUFFERP (buffer)) | |
| 3193 /* Search dedicated windows too. (Doesn't matter here anyway.) */ | |
| 444 | 3194 return window_loop (GET_BUFFER_WINDOW, buffer, 1, |
| 3195 which_frames, 1, which_devices); | |
| 428 | 3196 else |
| 3197 return Qnil; | |
| 3198 } | |
| 3199 | |
| 3200 /* These functions used to be `buffer-left-margin-pixel-width', etc. | |
| 3201 but there is no sensible way to implement those functions, since | |
| 3202 you can't in general derive a window from a buffer. */ | |
| 3203 | |
| 3204 DEFUN ("window-left-margin-pixel-width", Fwindow_left_margin_pixel_width, | |
| 3205 0, 1, 0, /* | |
| 3206 Return the width in pixels of the left outside margin of window WINDOW. | |
| 3207 If WINDOW is nil, the selected window is assumed. | |
| 3208 */ | |
| 3209 (window)) | |
| 3210 { | |
|
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Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
3211 return make_fixnum (window_left_margin_width (decode_window (window))); |
| 428 | 3212 } |
| 3213 | |
| 3214 DEFUN ("window-right-margin-pixel-width", Fwindow_right_margin_pixel_width, | |
| 3215 0, 1, 0, /* | |
| 3216 Return the width in pixels of the right outside margin of window WINDOW. | |
| 3217 If WINDOW is nil, the selected window is assumed. | |
| 3218 */ | |
| 3219 (window)) | |
| 3220 { | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
3221 return make_fixnum (window_right_margin_width (decode_window (window))); |
| 428 | 3222 } |
| 3223 | |
| 3224 DEFUN ("delete-other-windows", Fdelete_other_windows, 0, 1, "", /* | |
| 3225 Make WINDOW (or the selected window) fill its frame. | |
| 3226 Only the frame WINDOW is on is affected. | |
| 3227 This function tries to reduce display jumps | |
| 3228 by keeping the text previously visible in WINDOW | |
| 3229 in the same place on the frame. Doing this depends on | |
| 3230 the value of (window-start WINDOW), so if calling this function | |
| 3231 in a program gives strange scrolling, make sure the window-start | |
| 3232 value is reasonable when this function is called. | |
| 3233 */ | |
| 3234 (window)) | |
| 3235 { | |
| 3236 struct window *w = decode_window (window); | |
| 1207 | 3237 struct buffer *b; |
| 665 | 3238 Charbpos start_pos; |
| 428 | 3239 int old_top = WINDOW_TOP (w); |
| 3240 | |
| 1207 | 3241 if (NILP (WINDOW_BUFFER (w))) |
| 3242 invalid_operation ("Can't delete other windows of combination", window); | |
| 3243 | |
| 793 | 3244 window = wrap_window (w); |
| 1207 | 3245 b = XBUFFER (WINDOW_BUFFER (w)); |
| 428 | 3246 |
| 3247 if (MINI_WINDOW_P (w) && old_top > 0) | |
| 563 | 3248 invalid_operation ("Can't expand minibuffer to full frame", Qunbound); |
| 428 | 3249 |
| 3250 /* Ignore dedicated windows. */ | |
| 3251 window_loop (DELETE_OTHER_WINDOWS, window, 0, w->frame, 0, Qnil); | |
| 3252 | |
| 3253 start_pos = marker_position (w->start[CURRENT_DISP]); | |
| 3254 | |
| 3255 /* Try to minimize scrolling, by setting the window start to the | |
| 3256 point which will cause the text at the old window start to be at | |
| 3257 the same place on the frame. But don't try to do this if the | |
| 3258 window start is outside the visible portion (as might happen when | |
| 3259 the display is not current, due to typeahead). */ | |
| 3260 if (start_pos >= BUF_BEGV (b) && start_pos <= BUF_ZV (b) | |
| 3261 && !MINI_WINDOW_P (w)) | |
| 3262 { | |
| 665 | 3263 Charbpos new_start = start_with_line_at_pixpos (w, start_pos, old_top); |
| 428 | 3264 |
| 3265 if (new_start >= BUF_BEGV (b) && new_start <= BUF_ZV (b)) | |
| 3266 { | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
3267 Fset_marker (w->start[CURRENT_DISP], make_fixnum (new_start), |
| 428 | 3268 w->buffer); |
| 3269 w->start_at_line_beg = beginning_of_line_p (b, new_start); | |
| 3270 } | |
| 3271 /* We need to do this, so that the window-scroll-functions | |
| 3272 get called. */ | |
| 3273 w->force_start = 1; | |
| 3274 } | |
| 3275 | |
| 3276 return Qnil; | |
| 3277 } | |
| 3278 | |
| 3279 DEFUN ("delete-windows-on", Fdelete_windows_on, 1, 3, | |
| 3280 "bDelete windows on (buffer): ", /* | |
| 3281 Delete all windows showing BUFFER. | |
| 444 | 3282 |
| 3283 Optional second argument WHICH-FRAMES controls which frames are affected. | |
| 428 | 3284 If nil or omitted, delete all windows showing BUFFER in any frame. |
| 3285 If t, delete only windows showing BUFFER in the selected frame. | |
| 3286 If `visible', delete all windows showing BUFFER in any visible frame. | |
| 3287 If a frame, delete only windows showing BUFFER in that frame. | |
| 444 | 3288 Warning: WHICH-FRAMES has the same meaning as with `next-window', |
| 3289 except that the meanings of nil and t are reversed. | |
| 3290 | |
| 3291 The optional third argument WHICH-DEVICES further clarifies on which | |
| 3292 devices to search for frames as specified by WHICH-FRAMES. This value | |
| 3293 is only meaningful if WHICH-FRAMES is not t. | |
| 3294 If nil or omitted, search only the selected console. | |
| 3295 If a device, only search that device. | |
| 3296 If a console, search all devices on that console. | |
| 3297 If a device type, search all devices of that type. | |
| 3298 If `window-system', search all devices on a window system. | |
| 3299 Any other non-nil value means search all devices. | |
| 428 | 3300 */ |
| 444 | 3301 (buffer, which_frames, which_devices)) |
| 428 | 3302 { |
| 3303 /* This function can GC */ | |
| 444 | 3304 buffer = Fget_buffer (buffer); |
| 3305 CHECK_BUFFER (buffer); | |
| 3306 | |
| 3307 /* WHICH-FRAMES values t and nil mean the opposite of what | |
| 3308 window_loop expects. */ | |
| 3309 if (EQ (which_frames, Qnil)) | |
| 3310 which_frames = Qt; | |
| 3311 else if (EQ (which_frames, Qt)) | |
| 3312 which_frames = Qnil; | |
| 3313 | |
| 3314 /* Ignore dedicated windows. */ | |
| 3315 window_loop (DELETE_BUFFER_WINDOWS, buffer, 0, | |
| 3316 which_frames, 0, which_devices); | |
| 428 | 3317 return Qnil; |
| 3318 } | |
| 3319 | |
| 448 | 3320 static Lisp_Object |
| 3321 list_windows (struct window *w, Lisp_Object value) | |
| 3322 { | |
| 3323 for (;;) | |
| 3324 { | |
| 3325 if (!NILP (w->hchild)) | |
| 3326 value = list_windows (XWINDOW (w->hchild), value); | |
| 3327 else if (!NILP (w->vchild)) | |
| 3328 value = list_windows (XWINDOW (w->vchild), value); | |
| 3329 else | |
| 3330 { | |
| 793 | 3331 Lisp_Object window = wrap_window (w); |
| 3332 | |
| 448 | 3333 value = Fcons (window, value); |
| 3334 } | |
| 3335 if (NILP (w->next)) | |
| 3336 break; | |
| 3337 w = XWINDOW (w->next); | |
| 3338 } | |
| 3339 return value; | |
| 3340 } | |
| 3341 | |
| 3342 static Lisp_Object | |
| 3343 list_all_windows (Lisp_Object frame_spec, Lisp_Object device_spec) | |
| 3344 { | |
| 3345 Lisp_Object devcons, concons; | |
| 3346 Lisp_Object retval = Qnil; | |
| 3347 | |
| 3348 DEVICE_LOOP_NO_BREAK (devcons, concons) | |
| 3349 { | |
| 3350 Lisp_Object frame_list, the_window; | |
| 3351 Lisp_Object device, tail; | |
| 3352 | |
| 3353 device = XCAR (devcons); | |
| 3354 frame_list = DEVICE_FRAME_LIST (XDEVICE (device)); | |
| 3355 | |
| 3356 LIST_LOOP (tail, frame_list) | |
| 3357 { | |
| 3358 if ((NILP (frame_spec) | |
| 3359 && !EQ (XCAR (tail), DEVICE_SELECTED_FRAME (XDEVICE (device)))) | |
| 3360 || (EQ (frame_spec, Qvisible) | |
| 3361 && !FRAME_VISIBLE_P (XFRAME (XCAR (tail)))) | |
| 3362 || (FRAMEP (frame_spec) | |
| 3363 && !EQ (frame_spec, XCAR (tail))) | |
| 3364 || (!NILP (frame_spec) | |
| 3365 && !device_matches_device_spec (device, | |
| 3366 NILP (device_spec) ? | |
| 3367 Vselected_console : | |
| 3368 device_spec))) | |
| 3369 continue; | |
| 3370 the_window = FRAME_ROOT_WINDOW (XFRAME (XCAR (tail))); | |
| 3371 retval = list_windows (XWINDOW (the_window), retval); | |
| 3372 } | |
| 3373 } | |
| 3374 return Fnreverse (retval); | |
| 3375 } | |
| 3376 | |
| 444 | 3377 DEFUN ("replace-buffer-in-windows", Freplace_buffer_in_windows, 1, 3, |
| 428 | 3378 "bReplace buffer in windows: ", /* |
| 3379 Replace BUFFER with some other buffer in all windows showing it. | |
| 444 | 3380 |
| 3381 Optional second argument WHICH-FRAMES controls which frames are affected. | |
| 3382 If nil or omitted, all frames are affected. | |
| 3383 If t, only the selected frame is affected. | |
| 3384 If `visible', all visible frames are affected. | |
| 3385 If a frame, only that frame is affected. | |
| 3386 Warning: WHICH-FRAMES has the same meaning as with `next-window', | |
| 3387 except that the meanings of nil and t are reversed. | |
| 3388 | |
| 3389 The optional third argument WHICH-DEVICES further clarifies on which | |
| 3390 devices to search for frames as specified by WHICH-FRAMES. This value | |
| 3391 is only meaningful if WHICH-FRAMES is not t. | |
| 3392 If nil or omitted, search only the selected console. | |
| 3393 If a device, only search that device. | |
| 3394 If a console, search all devices on that console. | |
| 3395 If a device type, search all devices of that type. | |
| 3396 If `window-system', search all devices on a window system. | |
| 3397 Any other non-nil value means search all devices. | |
| 428 | 3398 */ |
| 444 | 3399 (buffer, which_frames, which_devices)) |
| 428 | 3400 { |
| 3401 /* This function can GC */ | |
| 448 | 3402 Lisp_Object window_list; |
| 3403 Lisp_Object tail; | |
| 3404 struct gcpro gcpro1, gcpro2; | |
| 3405 | |
| 444 | 3406 if (EQ (which_frames, Qnil)) |
| 3407 which_frames = Qt; | |
| 3408 else if (EQ (which_frames, Qt)) | |
| 3409 which_frames = Qnil; | |
| 448 | 3410 window_list = list_all_windows (which_frames, which_devices); |
| 3411 | |
| 3412 buffer = Fget_buffer (buffer); | |
| 3413 CHECK_BUFFER (buffer); | |
| 3414 | |
| 3415 GCPRO2 (window_list, buffer); | |
| 3416 LIST_LOOP (tail, window_list) | |
| 3417 { | |
| 3418 Lisp_Object window = XCAR (tail); | |
| 3419 if (!MINI_WINDOW_P (XWINDOW (window)) | |
| 3420 && EQ (XWINDOW (window)->buffer, buffer)) | |
| 3421 { | |
| 3422 Lisp_Object another_buffer = Fother_buffer (buffer, Qnil, Qnil); | |
| 3423 Lisp_Object frame = WINDOW_FRAME (XWINDOW (window)); | |
| 3424 if (NILP (another_buffer)) | |
| 3425 another_buffer = Fget_buffer_create (QSscratch); | |
| 3426 if (!NILP (XWINDOW (window)->dedicated) | |
| 3427 && EQ (window, | |
| 3428 FRAME_ROOT_WINDOW (XFRAME (frame))) | |
| 1979 | 3429 && (allow_deletion_of_last_visible_frame |
| 3430 || other_visible_frames (XFRAME (frame)))) | |
| 448 | 3431 { |
| 3432 delete_frame_internal (XFRAME (frame), 0, 0, 0); /* GC */ | |
| 3433 } | |
| 3434 else | |
| 3435 { | |
| 3436 Fset_window_buffer (window, another_buffer, Qnil); | |
| 3437 if (EQ (window, Fselected_window (Qnil))) | |
| 3438 Fset_buffer (XWINDOW (window)->buffer); | |
| 3439 } | |
| 3440 } | |
| 3441 } | |
| 3442 UNGCPRO; | |
| 428 | 3443 return Qnil; |
| 3444 } | |
| 3445 | |
| 3446 /* The smallest acceptable dimensions for a window. Anything smaller | |
| 3447 might crash Emacs. */ | |
| 3448 #define MIN_SAFE_WINDOW_WIDTH (2) | |
| 3449 #define MIN_SAFE_WINDOW_HEIGHT (2) | |
| 3450 | |
| 3451 /* Make sure that window_min_height and window_min_width are | |
| 3452 not too small; if they are, set them to safe minima. */ | |
| 3453 | |
| 3454 static void | |
| 3455 check_min_window_sizes (void) | |
| 3456 { | |
| 3457 /* Smaller values might permit a crash. */ | |
| 3458 if (window_min_width < MIN_SAFE_WINDOW_WIDTH) | |
| 3459 window_min_width = MIN_SAFE_WINDOW_WIDTH; | |
| 3460 if (window_min_height < MIN_SAFE_WINDOW_HEIGHT) | |
| 3461 window_min_height = MIN_SAFE_WINDOW_HEIGHT; | |
| 3462 } | |
| 3463 | |
| 440 | 3464 static int |
| 3465 frame_min_height (struct frame *frame) | |
| 3466 { | |
| 3467 /* For height, we have to see whether the frame has a minibuffer, and | |
| 3468 whether it wants a modeline. */ | |
| 3469 return (FRAME_MINIBUF_ONLY_P (frame) ? MIN_SAFE_WINDOW_HEIGHT - 1 | |
| 3470 : (! FRAME_HAS_MINIBUF_P (frame)) ? MIN_SAFE_WINDOW_HEIGHT | |
| 3471 : 2 * MIN_SAFE_WINDOW_HEIGHT - 1); | |
| 3472 } | |
| 3473 | |
| 3474 /* Return non-zero if both frame sizes are less than or equal to | |
| 3475 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
|
3476 static int |
|
07dcc7000bbf
put width before height consistently, fix a real bug found in the process
Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
3477 frame_size_valid_p (struct frame *frame, int cols, int rows) |
| 440 | 3478 { |
| 3479 return (rows >= frame_min_height (frame) | |
| 3480 && cols >= MIN_SAFE_WINDOW_WIDTH); | |
| 3481 } | |
| 3482 | |
| 3483 /* Return non-zero if both frame sizes are less than or equal to | |
| 3484 minimal allowed values. WIDTH and HEIGHT are in pixels */ | |
| 3485 int | |
| 3486 frame_pixsize_valid_p (struct frame *frame, int width, int height) | |
| 3487 { | |
| 3488 int rows, cols; | |
| 5043 | 3489 pixel_to_char_size (frame, width, height, &cols, &rows); |
|
5047
07dcc7000bbf
put width before height consistently, fix a real bug found in the process
Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
3490 return frame_size_valid_p (frame, cols, rows); |
| 440 | 3491 } |
| 3492 | |
| 428 | 3493 /* If *ROWS or *COLS are too small a size for FRAME, set them to the |
| 3494 minimum allowable size. */ | |
| 3495 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
|
3496 check_frame_size (struct frame *frame, int *cols, int *rows) |
| 428 | 3497 { |
| 440 | 3498 int min_height = frame_min_height (frame); |
| 5043 | 3499 int min_pixwidth, min_pixheight; |
| 3500 int min_geomwidth, min_geomheight; | |
| 3501 | |
| 3502 /* There is no char_to_frame_unit_size(). This can be done with | |
| 3503 frame_conversion_internal(), but that's currently static, and we can | |
| 3504 do it fine with two steps, as follows. */ | |
| 3505 char_to_pixel_size (frame, MIN_SAFE_WINDOW_WIDTH, min_height, | |
| 3506 &min_pixwidth, &min_pixheight); | |
| 3507 pixel_to_frame_unit_size (frame, min_pixwidth, min_pixheight, | |
| 3508 &min_geomwidth, &min_geomheight); | |
| 3509 if (*rows < min_geomheight) | |
| 3510 *rows = min_geomheight; | |
| 3511 if (*cols < min_geomwidth) | |
| 3512 *cols = min_geomwidth; | |
| 428 | 3513 } |
| 3514 | |
| 3515 /* Normally the window is deleted if it gets too small. | |
| 3516 nodelete nonzero means do not do this. | |
| 3517 (The caller should check later and do so if appropriate) */ | |
| 3518 static void | |
| 3519 set_window_pixsize (Lisp_Object window, int new_pixsize, int nodelete, | |
| 3520 int set_height) | |
| 3521 { | |
| 3522 struct window *w = XWINDOW (window); | |
| 3523 struct frame *f = XFRAME (w->frame); | |
| 3524 struct window *c; | |
| 3525 int old_pixsize = (set_height ? WINDOW_HEIGHT (w) : WINDOW_WIDTH (w)); | |
| 3526 Lisp_Object child, minor_kid, major_kid; | |
| 3527 int minsize; | |
| 3528 int line_size; | |
| 3529 int defheight, defwidth; | |
| 3530 | |
|
5047
07dcc7000bbf
put width before height consistently, fix a real bug found in the process
Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
3531 default_face_width_and_height (window, &defwidth, &defheight); |
| 428 | 3532 line_size = (set_height ? defheight : defwidth); |
| 3533 | |
| 3534 check_min_window_sizes (); | |
| 3535 | |
| 3536 minsize = (set_height ? window_min_height : window_min_width); | |
| 3537 minsize *= line_size; | |
| 3538 | |
| 3539 if (!nodelete | |
| 3540 && !TOP_LEVEL_WINDOW_P (w) | |
|
4375
74e0e1131e01
Update window-size computation.
Mike Sperber <sperber@deinprogramm.de>
parents:
3707
diff
changeset
|
3541 && (new_pixsize + window_modeline_height (w)) < minsize) |
| 428 | 3542 { |
| 3543 Fdelete_window (window, Qnil); | |
| 3544 return; | |
| 3545 } | |
| 3546 | |
| 3547 SET_LAST_MODIFIED (w, 0); | |
| 3548 SET_LAST_FACECHANGE (w); | |
| 3549 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f); /* multiple windows affected */ | |
| 3550 if (set_height) | |
| 3551 { | |
| 3552 WINDOW_HEIGHT (w) = new_pixsize; | |
| 3553 major_kid = w->vchild; | |
| 3554 minor_kid = w->hchild; | |
| 3555 } | |
| 3556 else | |
| 3557 { | |
| 3558 WINDOW_WIDTH (w) = new_pixsize; | |
| 3559 major_kid = w->hchild; | |
| 3560 minor_kid = w->vchild; | |
| 3561 } | |
| 3562 | |
| 3563 if (!NILP (minor_kid)) | |
| 3564 { | |
| 3565 for (child = minor_kid; !NILP (child); child = XWINDOW (child)->next) | |
| 3566 { | |
| 3567 if (set_height) | |
| 3568 WINDOW_TOP (XWINDOW (child)) = WINDOW_TOP (w); | |
| 3569 else | |
| 3570 WINDOW_LEFT (XWINDOW (child)) = WINDOW_LEFT (w); | |
| 3571 | |
| 3572 set_window_pixsize (child, new_pixsize, nodelete, set_height); | |
| 3573 } | |
| 3574 } | |
| 3575 else if (!NILP (major_kid)) | |
| 3576 { | |
| 3577 int last_pos, last_old_pos, pos, old_pos, first; | |
| 3578 int pixel_adj_left = new_pixsize - old_pixsize; | |
| 3579 int div_val = old_pixsize << 1; | |
| 3580 | |
| 3581 /* | |
| 3582 * Previously we bailed out here if there was no size change. | |
| 3583 * (pixel_adj_left == 0) But this broke toolbar updates. If a | |
| 3584 * toolbar appears or disappears, windows may not change size, | |
| 3585 * but their top and left coordinates need to be updated. | |
| 3586 * | |
| 3587 * So we don't bail until after the loop below. | |
| 3588 */ | |
| 3589 | |
| 3590 last_pos = first = (set_height ? WINDOW_TOP (w) : WINDOW_LEFT (w)); | |
| 3591 last_old_pos = 0; | |
| 3592 | |
| 3593 for (child = major_kid; !NILP (child); child = c->next) | |
| 3594 { | |
| 3595 c = XWINDOW (child); | |
| 3596 | |
| 3597 if (set_height) | |
| 3598 { | |
| 3599 old_pos = last_old_pos + WINDOW_HEIGHT (c); | |
| 3600 WINDOW_TOP (c) = last_pos; | |
| 3601 } | |
| 3602 else | |
| 3603 { | |
| 3604 old_pos = last_old_pos + WINDOW_WIDTH (c); | |
| 3605 WINDOW_LEFT (c) = last_pos; | |
| 3606 } | |
| 3607 | |
| 3608 pos = (((old_pos * new_pixsize) << 1) + old_pixsize) / div_val; | |
| 3609 /* All but the last window should have a height which is | |
| 3610 a multiple of the default line height. */ | |
| 3611 if (!NILP (c->next)) | |
|
4446
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3612 { |
|
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3613 /* |
|
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3614 * 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
|
3615 * 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
|
3616 * cancel out actually do cancel out. |
|
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3617 */ |
|
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3618 if (pixel_adj_left < 0) |
|
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3619 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
|
3620 else |
|
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3621 pos = (pos / line_size) * line_size; |
|
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3622 } |
| 428 | 3623 |
| 3624 /* Avoid confusion: don't delete child if it becomes too small */ | |
| 3625 set_window_pixsize (child, pos + first - last_pos, 1, set_height); | |
| 3626 | |
| 3627 last_pos = pos + first; | |
| 3628 last_old_pos = old_pos; | |
| 3629 } | |
| 3630 | |
| 3631 /* Sometimes we may get called with our old size. In that case | |
| 3632 we don't need to do anything else. */ | |
| 3633 if (!pixel_adj_left) | |
| 3634 return; | |
| 3635 | |
| 3636 /* Now delete any children that became too small. */ | |
| 3637 if (!nodelete) | |
| 3638 for (child = major_kid; !NILP (child); child = XWINDOW (child)->next) | |
| 3639 { | |
| 3640 if (set_height) | |
| 3641 set_window_pixheight (child, WINDOW_HEIGHT (XWINDOW (child)), 0); | |
| 3642 else | |
| 3643 set_window_pixwidth (child, WINDOW_WIDTH (XWINDOW (child)), 0); | |
| 3644 } | |
| 3645 } | |
| 3646 } | |
| 3647 | |
| 3648 /* Set the height of WINDOW and all its inferiors. */ | |
| 3649 void | |
| 3650 set_window_pixheight (Lisp_Object window, int new_pixheight, int nodelete) | |
| 3651 { | |
| 3652 set_window_pixsize (window, new_pixheight, nodelete, 1); | |
| 3653 } | |
| 3654 | |
| 3655 /* Recursively set width of WINDOW and its inferiors. */ | |
| 3656 void | |
| 3657 set_window_pixwidth (Lisp_Object window, int new_pixwidth, int nodelete) | |
| 3658 { | |
| 3659 set_window_pixsize (window, new_pixwidth, nodelete, 0); | |
| 3660 } | |
| 3661 | |
| 3662 | |
| 3663 static int window_select_count; | |
| 3664 | |
| 440 | 3665 DEFUN ("set-window-buffer", Fset_window_buffer, 2, 3, 0, /* |
| 428 | 3666 Make WINDOW display BUFFER as its contents. |
| 3667 BUFFER can be a buffer or buffer name. | |
| 440 | 3668 |
| 442 | 3669 With non-nil optional argument NORECORD, do not modify the |
| 440 | 3670 global or per-frame buffer ordering. |
| 428 | 3671 */ |
| 440 | 3672 (window, buffer, norecord)) |
| 428 | 3673 { |
| 3674 Lisp_Object tem; | |
| 3675 struct window *w = decode_window (window); | |
| 448 | 3676 int old_buffer_local_face_property = 0; |
| 428 | 3677 |
| 3678 buffer = Fget_buffer (buffer); | |
| 3679 CHECK_BUFFER (buffer); | |
| 3680 | |
| 3681 if (!BUFFER_LIVE_P (XBUFFER (buffer))) | |
| 563 | 3682 invalid_operation ("Attempt to display deleted buffer", Qunbound); |
| 428 | 3683 |
| 3684 tem = w->buffer; | |
| 3685 if (NILP (tem)) | |
| 563 | 3686 invalid_operation ("Window is deleted", Qunbound); |
| 428 | 3687 else if (EQ (tem, buffer)) |
| 3688 return Qnil; | |
| 3689 else if (! EQ (tem, Qt)) /* w->buffer is t when the window | |
| 3690 is first being set up. */ | |
| 3691 { | |
| 3692 if (!NILP (w->dedicated) && !EQ (tem, buffer)) | |
| 563 | 3693 signal_error (Qinvalid_operation, "Window is dedicated to buffer", tem); |
| 428 | 3694 |
| 448 | 3695 old_buffer_local_face_property = |
| 3696 XBUFFER (w->buffer)->buffer_local_face_property; | |
| 428 | 3697 unshow_buffer (w); |
| 3698 } | |
| 3699 | |
| 3700 w->buffer = buffer; | |
| 3701 w->window_end_pos[CURRENT_DISP] = 0; | |
| 3702 w->hscroll = 0; | |
| 3703 w->modeline_hscroll = 0; | |
| 844 | 3704 #if 0 /* pre point caches */ |
| 428 | 3705 Fset_marker (w->pointm[CURRENT_DISP], |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
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5474
diff
changeset
|
3706 make_fixnum (BUF_PT (XBUFFER (buffer))), |
| 428 | 3707 buffer); |
| 3708 set_marker_restricted (w->start[CURRENT_DISP], | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
3709 make_fixnum (XBUFFER (buffer)->last_window_start), |
| 428 | 3710 buffer); |
| 844 | 3711 #else |
| 3712 { | |
| 3713 Lisp_Object marker = Fgethash (buffer, w->saved_point_cache, Qnil); | |
| 3714 Lisp_Object newpoint = | |
|
5581
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
3715 !NILP (marker) ? make_fixnum (marker_position (marker)) : |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
3716 make_fixnum (BUF_PT (XBUFFER (buffer))); |
| 844 | 3717 /* Previously, we had in here set-window-point, which did one of the |
| 3718 following two, but not both. However, that could result in pointm | |
| 3719 being in a different buffer from the window's buffer! Probably | |
| 3720 not a travesty since it always occurred when the window was | |
| 3721 selected, meaning its value of point was ignored in favor of the | |
| 3722 buffer's; but it tripped an assert() in unshow_buffer(). */ | |
| 3723 set_marker_restricted (w->pointm[CURRENT_DISP], newpoint, buffer); | |
| 3724 if (EQ (wrap_window (w), Fselected_window (Qnil))) | |
| 3725 Fgoto_char (newpoint, buffer); /* this will automatically clip to | |
| 3726 accessible */ | |
| 3727 marker = Fgethash (buffer, w->saved_last_window_start_cache, Qnil); | |
| 3728 set_marker_restricted (w->start[CURRENT_DISP], | |
| 3729 !NILP (marker) ? | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
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parents:
5474
diff
changeset
|
3730 make_fixnum (marker_position (marker)) : |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
3731 make_fixnum (XBUFFER (buffer)->last_window_start), |
| 844 | 3732 buffer); |
| 3733 } | |
| 3734 #endif | |
| 3735 | |
| 428 | 3736 Fset_marker (w->sb_point, w->start[CURRENT_DISP], buffer); |
| 3737 /* set start_at_line_beg correctly. GE */ | |
| 844 | 3738 w->start_at_line_beg = |
| 3739 beginning_of_line_p (XBUFFER (buffer), | |
| 3740 marker_position (w->start[CURRENT_DISP])); | |
| 3741 w->force_start = 0; /* XEmacs fix */ | |
| 428 | 3742 SET_LAST_MODIFIED (w, 1); |
| 3743 SET_LAST_FACECHANGE (w); | |
| 3744 MARK_WINDOWS_CHANGED (w); | |
| 448 | 3745 { |
| 3746 int new_buffer_local_face_property = | |
| 3747 XBUFFER (w->buffer)->buffer_local_face_property; | |
| 3748 | |
| 3749 if (new_buffer_local_face_property | |
| 3750 || new_buffer_local_face_property != old_buffer_local_face_property) | |
| 3751 MARK_WINDOW_FACES_CHANGED (w); | |
| 3752 } | |
| 428 | 3753 recompute_all_cached_specifiers_in_window (w); |
| 3754 if (EQ (window, Fselected_window (Qnil))) | |
| 3755 { | |
| 440 | 3756 if (NILP (norecord)) |
| 3757 Frecord_buffer (buffer); | |
| 3758 | |
| 428 | 3759 Fset_buffer (buffer); |
| 3760 } | |
|
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diff
changeset
|
3761 if (NILP (XBUFFER (buffer)->display_count)) |
|
5581
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
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5474
diff
changeset
|
3762 XBUFFER (buffer)->display_count = make_fixnum (1); |
|
5214
0b4d355771bd
Import buffer-display-count, buffer-display-time; thank you, Jeff Sparkes.
Aidan Kehoe <kehoea@parhasard.net>
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5191
diff
changeset
|
3763 else |
|
5581
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Mechanically change INT to FIXNUM in our sources.
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5474
diff
changeset
|
3764 XBUFFER (buffer)->display_count = make_fixnum (1 + XFIXNUM (XBUFFER (buffer)->display_count)); |
|
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diff
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|
3765 XBUFFER (buffer)->display_time = Fcurrent_time(); |
| 428 | 3766 return Qnil; |
| 3767 } | |
| 3768 | |
| 3769 DEFUN ("select-window", Fselect_window, 1, 2, 0, /* | |
| 3770 Select WINDOW. Most editing will apply to WINDOW's buffer. | |
| 3771 The main editor command loop selects the buffer of the selected window | |
| 3772 before each command. | |
| 3773 | |
| 442 | 3774 With non-nil optional argument NORECORD, do not modify the |
| 428 | 3775 global or per-frame buffer ordering. |
| 3776 */ | |
| 3777 (window, norecord)) | |
| 3778 { | |
| 3779 struct window *w; | |
| 3780 Lisp_Object old_selected_window = Fselected_window (Qnil); | |
| 3781 | |
| 3782 CHECK_LIVE_WINDOW (window); | |
| 3783 w = XWINDOW (window); | |
| 3784 | |
| 3785 /* we have already caught dead-window errors */ | |
| 3786 if (!NILP (w->hchild) || !NILP (w->vchild)) | |
| 563 | 3787 invalid_operation ("Trying to select non-leaf window", Qunbound); |
| 428 | 3788 |
|
5581
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
3789 w->use_time = make_fixnum (++window_select_count); |
| 442 | 3790 |
| 428 | 3791 if (EQ (window, old_selected_window)) |
| 3792 return window; | |
| 3793 | |
| 3794 /* deselect the old window, if it exists (it might not exist if | |
| 3795 the selected device has no frames, which occurs at startup) */ | |
| 3796 if (!NILP (old_selected_window)) | |
| 3797 { | |
| 3798 struct window *ow = XWINDOW (old_selected_window); | |
| 3799 | |
| 3800 Fset_marker (ow->pointm[CURRENT_DISP], | |
|
5581
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
3801 make_fixnum (BUF_PT (XBUFFER (ow->buffer))), |
| 428 | 3802 ow->buffer); |
| 3803 | |
| 3804 MARK_WINDOWS_CHANGED (ow); | |
| 3805 } | |
| 3806 | |
| 3807 /* now select the window's frame */ | |
| 3808 set_frame_selected_window (XFRAME (WINDOW_FRAME (w)), window); | |
| 3809 | |
| 3810 select_frame_1 (WINDOW_FRAME (w)); | |
| 3811 | |
| 3812 /* also select the window's buffer */ | |
| 3813 if (NILP (norecord)) | |
| 3814 Frecord_buffer (w->buffer); | |
| 3815 Fset_buffer (w->buffer); | |
| 3816 | |
| 3817 /* Go to the point recorded in the window. | |
| 3818 This is important when the buffer is in more | |
| 3819 than one window. It also matters when | |
| 3820 redisplay_window has altered point after scrolling, | |
| 3821 because it makes the change only in the window. */ | |
| 3822 { | |
| 665 | 3823 Charbpos new_point = marker_position (w->pointm[CURRENT_DISP]); |
| 428 | 3824 if (new_point < BUF_BEGV (current_buffer)) |
| 3825 new_point = BUF_BEGV (current_buffer); | |
| 3826 else if (new_point > BUF_ZV (current_buffer)) | |
| 3827 new_point = BUF_ZV (current_buffer); | |
| 3828 | |
| 3829 BUF_SET_PT (current_buffer, new_point); | |
| 3830 } | |
| 3831 | |
| 3832 MARK_WINDOWS_CHANGED (w); | |
| 3833 | |
| 3834 return window; | |
| 3835 } | |
| 3836 | |
| 3837 Lisp_Object | |
| 3838 display_buffer (Lisp_Object buffer, Lisp_Object not_this_window_p, | |
| 3839 Lisp_Object override_frame) | |
| 3840 { | |
| 3841 return call3 (Qdisplay_buffer, buffer, not_this_window_p, override_frame); | |
| 3842 } | |
| 3843 | |
| 3844 void | |
| 3845 temp_output_buffer_show (Lisp_Object buf, Lisp_Object same_frame) | |
| 3846 { | |
| 3847 /* This function can GC */ | |
| 3848 Lisp_Object window; | |
| 3849 struct window *w; | |
| 3850 struct buffer *b = XBUFFER (buf); | |
| 3851 | |
| 3852 BUF_SAVE_MODIFF (XBUFFER (buf)) = BUF_MODIFF (b); | |
| 3853 widen_buffer (b, 0); | |
| 3854 BUF_SET_PT (b, BUF_BEG (b)); | |
| 3855 | |
| 3856 if (!NILP (Vtemp_buffer_show_function)) | |
| 3857 call1 (Vtemp_buffer_show_function, buf); | |
| 3858 else | |
| 3859 { | |
| 3860 window = display_buffer (buf, Qnil, same_frame); | |
| 3861 | |
| 3862 if (!EQ (XWINDOW (window)->frame, Fselected_frame (Qnil))) | |
| 3863 Fmake_frame_visible (WINDOW_FRAME (XWINDOW (window))); | |
| 3864 | |
| 3865 Vminibuffer_scroll_window = window; | |
| 3866 w = XWINDOW (window); | |
| 3867 w->hscroll = 0; | |
| 3868 w->modeline_hscroll = 0; | |
|
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5474
diff
changeset
|
3869 set_marker_restricted (w->start[CURRENT_DISP], make_fixnum (1), buf); |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
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5474
diff
changeset
|
3870 set_marker_restricted (w->pointm[CURRENT_DISP], make_fixnum (1), buf); |
|
56144c8593a8
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5474
diff
changeset
|
3871 set_marker_restricted (w->sb_point, make_fixnum (1), buf); |
| 428 | 3872 } |
| 3873 } | |
| 3874 | |
| 3875 static void | |
| 3876 make_dummy_parent (Lisp_Object window) | |
| 3877 { | |
| 3878 struct window *o = XWINDOW (window); | |
|
5127
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5126
diff
changeset
|
3879 Lisp_Object obj = ALLOC_NORMAL_LISP_OBJECT (window); |
|
5117
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changeset
|
3880 struct window *p = XWINDOW (obj); |
|
3742ea8250b5
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diff
changeset
|
3881 |
|
5127
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5126
diff
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|
3882 copy_lisp_object (obj, window); |
| 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 */ | |
|
5117
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changeset
|
3902 replace_window (window, obj); |
| 428 | 3903 |
| 3904 o->next = Qnil; | |
| 3905 o->prev = Qnil; | |
| 3906 o->vchild = Qnil; | |
| 3907 o->hchild = Qnil; | |
|
5117
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changeset
|
3908 o->parent = obj; |
| 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 { | |
|
5581
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5474
diff
changeset
|
3962 CHECK_FIXNUM (size); |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
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5474
diff
changeset
|
3963 csize = XFIXNUM (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) |
|
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diff
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|
3980 signal_error (Qinvalid_operation, "Window height too small (after splitting)", make_fixnum (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)", |
|
5581
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|
3983 make_fixnum (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) |
|
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|
4002 signal_error (Qinvalid_operation, "Window width too small (after splitting)", make_fixnum (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)", |
|
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|
4005 make_fixnum (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 { | |
|
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diff
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|
4080 CHECK_FIXNUM (count); |
|
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|
4081 change_window_height (window, XFIXNUM (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 { | |
|
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changeset
|
4093 CHECK_FIXNUM (count); |
|
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|
4094 change_window_height (window, XFIXNUM (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 { | |
|
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|
4106 CHECK_FIXNUM (count); |
|
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|
4107 change_window_height (window, -XFIXNUM (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 { | |
|
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changeset
|
4119 CHECK_FIXNUM (count); |
|
56144c8593a8
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5474
diff
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|
4120 change_window_height (window, -XFIXNUM (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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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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|
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 | |
|
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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 | |
|
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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 |
|
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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
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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
|
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) | |
|
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Mechanically change INT to FIXNUM in our sources.
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diff
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|
4543 point = make_fixnum (BUF_PT (b)); |
| 428 | 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 | |
|
5581
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4553 point = make_fixnum (pos); |
| 428 | 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 { | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4566 Fvertical_motion (make_fixnum (-window_char_height (w, 0) / 2), |
| 428 | 4567 window, Qnil); |
| 4568 Fset_marker (w->start[CURRENT_DISP], point, w->buffer); | |
|
5581
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4569 w->start_at_line_beg = beginning_of_line_p (b, XFIXNUM (point)); |
| 428 | 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); |
|
5581
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4581 value = XFIXNUM (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 | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4618 if (FIXNUMP (Vwindow_pixel_scroll_increment)) |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4619 fheight = XFIXNUM (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>
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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 { | |
|
5581
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4665 set_marker_restricted (w->start[CURRENT_DISP], make_fixnum (startp), |
| 428 | 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 |
|
5581
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Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4671 if (!point_would_be_visible (w, startp, XFIXNUM (point), 0)) |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4672 Fset_window_point (wrap_window (w), make_fixnum (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 { | |
|
5581
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4715 set_marker_restricted (w->start[CURRENT_DISP], make_fixnum (startp), |
| 428 | 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 | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4739 if (!point_would_be_visible (w, startp, XFIXNUM (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 |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4748 Fset_window_point (wrap_window (w), make_fixnum (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 | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4778 set_marker_restricted (w->start[CURRENT_DISP], make_fixnum (startp), |
| 428 | 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 | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4784 if (!point_would_be_visible (w, startp, XFIXNUM (point), 0)) |
| 428 | 4785 { |
| 665 | 4786 Charbpos new_point = start_of_last_line (w, startp); |
| 428 | 4787 |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4788 Fset_window_point (wrap_window (w), make_fixnum (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 : | |
|
5581
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Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4911 XFIXNUM (Fprefix_numeric_value (count))); |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4912 |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4913 return Fset_window_hscroll (window, make_fixnum (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 : | |
|
5581
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4931 XFIXNUM (Fprefix_numeric_value (count))); |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4932 |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4933 return Fset_window_hscroll (window, make_fixnum (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); | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4953 CHECK_FIXNUM (n); |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4954 startp = start_with_point_on_display_line (w, opoint, XFIXNUM (n)); |
| 428 | 4955 } |
| 4956 | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4957 Fset_marker (w->start[CURRENT_DISP], make_fixnum (startp), w->buffer); |
| 428 | 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 | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4996 if (XFIXNUM (w->last_modified[CURRENT_DISP]) >= BUF_MODIFF (b) |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4997 && XFIXNUM (w->last_facechange[CURRENT_DISP]) >= BUF_FACECHANGE (b)) |
| 428 | 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 | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
5007 Fset_window_point (window, make_fixnum (new_point)); |
| 428 | 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 | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
5029 Fset_window_point (window, make_fixnum (new_point)); |
| 428 | 5030 |
| 5031 retval = line_at_center (w, CMOTION_DISP, start, BUF_PT (b)); | |
| 5032 } | |
| 5033 | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
5034 return make_fixnum (retval); |
| 428 | 5035 } |
| 5036 else | |
| 5037 { | |
| 5038 /* #### Is this going to work right when at eob? */ | |
| 5039 arg = Fprefix_numeric_value (arg); | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
5040 if (XFIXNUM (arg) < 0) |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
5041 arg = make_fixnum (XFIXNUM (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 | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
5057 Fset_window_point (window, make_fixnum (new_point)); |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
5058 |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
5059 Fset_marker (w->start[CURRENT_DISP], make_fixnum (new_point), |
| 428 | 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 | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
5069 Fset_window_point (window, make_fixnum (start)); |
| 428 | 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]), | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
5079 XFIXNUM (arg), &vpos); |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
5080 Fset_window_point (window, make_fixnum (new_point)); |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
5081 return make_fixnum (vpos); |
| 428 | 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 | |
|
5170
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parents:
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diff
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|
5171 struct window_mirror_stats |
|
5ddbab03b0e6
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diff
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|
5172 { |
|
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parents:
5157
diff
changeset
|
5173 struct usage_stats u; |
|
5384
3889ef128488
Fix misspelled words, and some grammar, across the entire source tree.
Jerry James <james@xemacs.org>
parents:
5217
diff
changeset
|
5174 /* Ancillary non-lisp */ |
|
5170
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5175 Bytecount redisplay_structs; |
|
5ddbab03b0e6
various fixes to memory-usage stats
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parents:
5157
diff
changeset
|
5176 #ifdef HAVE_SCROLLBARS |
|
5384
3889ef128488
Fix misspelled words, and some grammar, across the entire source tree.
Jerry James <james@xemacs.org>
parents:
5217
diff
changeset
|
5177 /* Ancillary Lisp */ |
|
5170
5ddbab03b0e6
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Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5178 Bytecount scrollbar; |
|
5ddbab03b0e6
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Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5179 #endif |
|
5ddbab03b0e6
various fixes to memory-usage stats
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diff
changeset
|
5180 }; |
|
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parents:
5157
diff
changeset
|
5181 |
| 428 | 5182 struct window_stats |
| 5183 { | |
|
5157
1fae11d56ad2
redo memory-usage mechanism, add way of dynamically initializing Lisp objects
Ben Wing <ben@xemacs.org>
parents:
5146
diff
changeset
|
5184 struct usage_stats u; |
|
5170
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5185 /* Ancillary non-Lisp */ |
|
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5186 Bytecount line_start; |
|
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5187 /* The next two: ancillary non-Lisp under old-GC, ancillary Lisp under |
|
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5188 NEW_GC */ |
|
5157
1fae11d56ad2
redo memory-usage mechanism, add way of dynamically initializing Lisp objects
Ben Wing <ben@xemacs.org>
parents:
5146
diff
changeset
|
5189 Bytecount face; |
|
1fae11d56ad2
redo memory-usage mechanism, add way of dynamically initializing Lisp objects
Ben Wing <ben@xemacs.org>
parents:
5146
diff
changeset
|
5190 Bytecount glyph; |
|
5170
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5191 /* The next two are copied out of the window mirror, which is an ancillary |
|
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5192 Lisp structure; the first is non-Lisp, the second Lisp, but from our |
|
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5193 perspective, they are both counted as Lisp */ |
|
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5194 Bytecount redisplay_structs; |
| 428 | 5195 #ifdef HAVE_SCROLLBARS |
|
5157
1fae11d56ad2
redo memory-usage mechanism, add way of dynamically initializing Lisp objects
Ben Wing <ben@xemacs.org>
parents:
5146
diff
changeset
|
5196 Bytecount scrollbar; |
| 428 | 5197 #endif |
|
5170
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5198 /* Remaining memory associated with window mirror (ancillary Lisp) */ |
|
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5199 Bytecount window_mirror; |
| 428 | 5200 }; |
| 5201 | |
| 5202 static void | |
| 5203 compute_window_mirror_usage (struct window_mirror *mir, | |
|
5170
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
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|
5204 struct window_mirror_stats *stats) |
|
5ddbab03b0e6
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parents:
5157
diff
changeset
|
5205 { |
|
5ddbab03b0e6
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Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5206 stats->redisplay_structs = |
|
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5207 compute_display_line_dynarr_usage (mir->current_display_lines, &stats->u) |
|
5ddbab03b0e6
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Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5208 + |
|
5ddbab03b0e6
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Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5209 compute_display_line_dynarr_usage (mir->desired_display_lines, &stats->u); |
| 428 | 5210 #ifdef HAVE_SCROLLBARS |
|
5170
5ddbab03b0e6
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parents:
5157
diff
changeset
|
5211 stats->scrollbar = |
|
5ddbab03b0e6
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Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5212 compute_all_scrollbar_instance_usage (mir->scrollbar_vertical_instance) + |
|
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5213 compute_all_scrollbar_instance_usage (mir->scrollbar_horizontal_instance); |
| 428 | 5214 #endif /* HAVE_SCROLLBARS */ |
|
5170
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5157
diff
changeset
|
5215 } |
|
5ddbab03b0e6
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diff
changeset
|
5216 |
|
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5157
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|
5217 |
|
5ddbab03b0e6
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5157
diff
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|
5218 static void |
|
5ddbab03b0e6
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5157
diff
changeset
|
5219 window_mirror_memory_usage (Lisp_Object window_mirror, |
|
5ddbab03b0e6
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5157
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|
5220 struct generic_usage_stats *gustats) |
|
5ddbab03b0e6
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5157
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changeset
|
5221 { |
|
5ddbab03b0e6
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5157
diff
changeset
|
5222 struct window_mirror_stats *stats = (struct window_mirror_stats *) gustats; |
|
5ddbab03b0e6
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changeset
|
5223 |
|
5ddbab03b0e6
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|
5224 compute_window_mirror_usage (XWINDOW_MIRROR (window_mirror), stats); |
| 428 | 5225 } |
| 5226 | |
| 5227 static void | |
| 5228 compute_window_usage (struct window *w, struct window_stats *stats, | |
|
5157
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5146
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changeset
|
5229 struct usage_stats *ustats) |
| 428 | 5230 { |
|
5170
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5157
diff
changeset
|
5231 stats->line_start = |
|
5157
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5146
diff
changeset
|
5232 compute_line_start_cache_dynarr_usage (w->line_start_cache, ustats); |
|
5170
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changeset
|
5233 stats->face = compute_face_cachel_usage (w->face_cachels, |
|
5217
c0f518284a68
Unbreak `show-memory-usage' for NEW_GC.
Marcus Crestani <crestani@informatik.uni-tuebingen.de>
parents:
5214
diff
changeset
|
5234 ustats); |
|
5170
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5157
diff
changeset
|
5235 stats->glyph = compute_glyph_cachel_usage (w->glyph_cachels, |
|
5217
c0f518284a68
Unbreak `show-memory-usage' for NEW_GC.
Marcus Crestani <crestani@informatik.uni-tuebingen.de>
parents:
5214
diff
changeset
|
5236 ustats); |
|
5170
5ddbab03b0e6
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changeset
|
5237 { |
|
5ddbab03b0e6
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changeset
|
5238 struct window_mirror *wm; |
|
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various fixes to memory-usage stats
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|
5239 |
|
5ddbab03b0e6
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|
5240 wm = find_window_mirror_maybe (w); |
|
5ddbab03b0e6
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changeset
|
5241 if (wm) |
|
5ddbab03b0e6
various fixes to memory-usage stats
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changeset
|
5242 { |
|
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various fixes to memory-usage stats
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changeset
|
5243 struct generic_usage_stats gustats; |
|
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changeset
|
5244 struct window_mirror_stats *wmstats; |
|
5ddbab03b0e6
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diff
changeset
|
5245 Bytecount total; |
|
5ddbab03b0e6
various fixes to memory-usage stats
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|
5246 total = lisp_object_memory_usage_full (wrap_window_mirror (wm), |
|
5ddbab03b0e6
various fixes to memory-usage stats
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diff
changeset
|
5247 NULL, NULL, NULL, &gustats); |
|
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various fixes to memory-usage stats
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changeset
|
5248 wmstats = (struct window_mirror_stats *) &gustats; |
|
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diff
changeset
|
5249 stats->redisplay_structs = wmstats->redisplay_structs; |
|
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parents:
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diff
changeset
|
5250 total -= stats->redisplay_structs; |
|
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various fixes to memory-usage stats
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diff
changeset
|
5251 #ifdef HAVE_SCROLLBARS |
|
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diff
changeset
|
5252 stats->scrollbar = wmstats->scrollbar; |
|
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diff
changeset
|
5253 total -= stats->scrollbar; |
|
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diff
changeset
|
5254 #endif |
|
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changeset
|
5255 stats->window_mirror = total; |
|
5ddbab03b0e6
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diff
changeset
|
5256 } |
|
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various fixes to memory-usage stats
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diff
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|
5257 } |
| 428 | 5258 } |
| 5259 | |
|
5157
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5146
diff
changeset
|
5260 static void |
|
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changeset
|
5261 window_memory_usage (Lisp_Object window, struct generic_usage_stats *gustats) |
| 428 | 5262 { |
|
5157
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parents:
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changeset
|
5263 struct window_stats *stats = (struct window_stats *) gustats; |
|
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Ben Wing <ben@xemacs.org>
parents:
5146
diff
changeset
|
5264 |
|
1fae11d56ad2
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Ben Wing <ben@xemacs.org>
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diff
changeset
|
5265 compute_window_usage (XWINDOW (window), stats, &stats->u); |
| 428 | 5266 } |
| 5267 | |
| 5268 #endif /* MEMORY_USAGE_STATS */ | |
|
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|
5269 |
|
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Ben Wing <ben@xemacs.org>
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changeset
|
5270 |
| 428 | 5271 |
| 5272 /* Mark all subwindows of a window as deleted. The argument | |
| 5273 W is actually the subwindow tree of the window in question. */ | |
| 5274 | |
| 5275 void | |
| 5276 delete_all_subwindows (struct window *w) | |
| 5277 { | |
| 5278 if (!NILP (w->next)) delete_all_subwindows (XWINDOW (w->next)); | |
| 5279 if (!NILP (w->vchild)) delete_all_subwindows (XWINDOW (w->vchild)); | |
| 5280 if (!NILP (w->hchild)) delete_all_subwindows (XWINDOW (w->hchild)); | |
| 5281 | |
| 5282 mark_window_as_deleted (w); | |
| 5283 } | |
| 5284 | |
| 1149 | 5285 |
| 2289 | 5286 static int |
| 5287 get_current_pixel_pos (Lisp_Object window, Lisp_Object pos, | |
| 5288 struct window **w, | |
| 5289 struct rune **rb, struct display_line **dl) | |
| 428 | 5290 { |
| 2289 | 5291 display_line_dynarr *dla; |
| 5292 struct display_block *db = NULL; | |
| 5293 int x, y; | |
| 5294 | |
| 5295 *rb = NULL; | |
| 5296 *dl = NULL; | |
| 5297 *w = decode_window (window); | |
| 5298 dla = window_display_lines (*w, CURRENT_DISP); | |
| 5299 x = (*w)->last_point_x[CURRENT_DISP]; | |
| 5300 y = (*w)->last_point_y[CURRENT_DISP]; | |
| 5301 if (MINI_WINDOW_P (*w)) | |
| 5302 return 0; | |
| 428 | 5303 |
| 5304 if (y<0 || x<0 || y >= Dynarr_length (dla) || !NILP (pos)) | |
| 5305 { | |
| 5306 int first_line, i; | |
| 665 | 5307 Charbpos point; |
| 428 | 5308 |
| 5309 if (NILP (pos)) | |
| 5310 pos = Fwindow_point (window); | |
| 438 | 5311 |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
5312 CHECK_FIXNUM (pos); |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
5313 point = XFIXNUM (pos); |
| 428 | 5314 |
| 4967 | 5315 if (Dynarr_length (dla) && Dynarr_begin (dla)->modeline) |
| 428 | 5316 first_line = 1; |
| 5317 else | |
| 5318 first_line = 0; | |
| 5319 | |
| 5320 for (i = first_line; i < Dynarr_length (dla); i++) | |
| 5321 { | |
| 2289 | 5322 *dl = Dynarr_atp (dla, i); |
| 428 | 5323 /* find the vertical location first */ |
| 2289 | 5324 if (point >= (*dl)->charpos && point <= (*dl)->end_charpos) |
| 428 | 5325 { |
| 2289 | 5326 db = get_display_block_from_line (*dl, TEXT); |
| 428 | 5327 for (i = 0; i < Dynarr_length (db->runes); i++) |
| 5328 { | |
| 2289 | 5329 *rb = Dynarr_atp (db->runes, i); |
| 2290 | 5330 if (point <= (*rb)->charpos) |
| 826 | 5331 goto found_charpos; |
| 428 | 5332 } |
| 2289 | 5333 return 0; |
| 428 | 5334 } |
| 5335 } | |
| 2289 | 5336 return 0; |
| 826 | 5337 found_charpos: |
| 428 | 5338 ; |
| 5339 } | |
| 5340 else | |
| 5341 { | |
| 442 | 5342 /* optimized case */ |
| 2289 | 5343 *dl = Dynarr_atp (dla, y); |
| 5344 db = get_display_block_from_line (*dl, TEXT); | |
| 428 | 5345 |
| 5346 if (x >= Dynarr_length (db->runes)) | |
| 2289 | 5347 return 0; |
| 5348 | |
| 5349 *rb = Dynarr_atp (db->runes, x); | |
| 428 | 5350 } |
| 5351 | |
| 2289 | 5352 return 1; |
| 5353 } | |
| 5354 | |
| 5355 DEFUN ("current-pixel-column", Fcurrent_pixel_column, 0, 2, 0, /* | |
| 5356 Return the horizontal pixel position of point POS in window. | |
| 5357 Beginning of line is column 0. If WINDOW is nil, the current window | |
| 5358 is assumed. If POS is nil, point is assumed. Note that POS must be | |
| 5359 visible for a non-nil result to be returned. This is calculated using | |
| 5360 the redisplay display tables; because of this, the returned value will | |
| 5361 only be correct if the redisplay tables are up-to-date. Use | |
| 5362 \"(sit-for 0)\" to insure that they are; however, if WINDOW is part of | |
| 5363 a new frame, use the following instead: | |
| 5364 (while (not (frame-visible-p frame)) (sleep-for .5)) | |
| 5365 */ | |
| 5366 (window, pos)) | |
| 5367 { | |
| 5368 struct window* w; | |
| 5369 struct display_line *dl; | |
| 5370 struct rune* rb; | |
| 5371 | |
| 5372 if (!get_current_pixel_pos(window, pos, &w, &rb, &dl)) | |
| 5373 return Qnil; | |
| 5374 | |
|
5581
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
5375 return make_fixnum (rb->xpos - WINDOW_LEFT (w)); |
| 428 | 5376 } |
| 5377 | |
| 2289 | 5378 DEFUN ("current-pixel-row", Fcurrent_pixel_row, 0, 2, 0, /* |
| 5379 Return the vertical pixel position of point POS in window. Top of | |
| 5380 window is row 0. If WINDOW is nil, the current window is assumed. If | |
| 5381 POS is nil, point is assumed. Note that POS must be visible for a | |
| 5382 non-nil result to be returned. This is calculated using the redisplay | |
| 5383 display tables; because of this, the returned value will only be | |
| 5384 correct if the redisplay tables are up-to-date. Use \"(sit-for 0)\" | |
| 5385 to insure that they are; however, if WINDOW is part of a new frame, | |
| 5386 use the following instead: | |
| 5387 (while (not (frame-visible-p frame)) (sleep-for .5)) | |
| 5388 */ | |
| 5389 (window, pos)) | |
| 5390 { | |
| 5391 struct window* w; | |
| 5392 struct display_line *dl; | |
| 5393 struct rune* rb; | |
| 5394 | |
| 5395 if (!get_current_pixel_pos(window, pos, &w, &rb, &dl)) | |
| 5396 return Qnil; | |
| 5397 | |
|
5581
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
5398 return make_fixnum (dl->ypos - dl->ascent - WINDOW_TOP (w)); |
| 2289 | 5399 } |
| 5400 | |
| 428 | 5401 |
| 5402 #ifdef DEBUG_XEMACS | |
| 5403 /* This is short and simple in elisp, but... it was written to debug | |
| 5404 problems purely on the C side. That is where we need to call it so | |
| 5405 here it is. */ | |
| 5406 static void | |
| 5407 debug_print_window (Lisp_Object window, int level) | |
| 5408 { | |
| 5409 int i; | |
| 5410 Lisp_Object child = Fwindow_first_vchild (window); | |
| 5411 | |
| 5412 if (NILP (child)) | |
| 5413 child = Fwindow_first_hchild (window); | |
| 5414 | |
| 5415 for (i = level; i > 0; i--) | |
| 442 | 5416 stderr_out ("\t"); |
| 5417 | |
| 5418 stderr_out ("#<window"); | |
| 428 | 5419 { |
| 5420 Lisp_Object buffer = XWINDOW (window)->buffer; | |
| 5421 if (!NILP (buffer) && BUFFERP (buffer)) | |
| 442 | 5422 stderr_out (" on %s", XSTRING_DATA (XBUFFER (buffer)->name)); |
| 428 | 5423 } |
|
5146
88bd4f3ef8e4
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Ben Wing <ben@xemacs.org>
parents:
5142
diff
changeset
|
5424 stderr_out (" 0x%x>", LISP_OBJECT_UID (window)); |
| 428 | 5425 |
| 5426 while (!NILP (child)) | |
| 5427 { | |
| 5428 debug_print_window (child, level + 1); | |
| 5429 child = Fwindow_next_child (child); | |
| 5430 } | |
| 5431 } | |
| 5432 | |
| 5433 void debug_print_windows (struct frame *f); | |
| 5434 void | |
| 5435 debug_print_windows (struct frame *f) | |
| 5436 { | |
| 5437 debug_print_window (f->root_window, 0); | |
| 5438 putc ('\n', stderr); | |
| 5439 } | |
| 5440 #endif /* DEBUG_XEMACS */ | |
| 5441 | |
| 5442 | |
| 5443 /************************************************************************/ | |
| 5444 /* initialization */ | |
| 5445 /************************************************************************/ | |
| 5446 | |
| 5447 void | |
|
5157
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5146
diff
changeset
|
5448 window_objects_create (void) |
|
1fae11d56ad2
redo memory-usage mechanism, add way of dynamically initializing Lisp objects
Ben Wing <ben@xemacs.org>
parents:
5146
diff
changeset
|
5449 { |
|
1fae11d56ad2
redo memory-usage mechanism, add way of dynamically initializing Lisp objects
Ben Wing <ben@xemacs.org>
parents:
5146
diff
changeset
|
5450 #ifdef MEMORY_USAGE_STATS |
|
1fae11d56ad2
redo memory-usage mechanism, add way of dynamically initializing Lisp objects
Ben Wing <ben@xemacs.org>
parents:
5146
diff
changeset
|
5451 OBJECT_HAS_METHOD (window, memory_usage); |
|
5170
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various fixes to memory-usage stats
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5157
diff
changeset
|
5452 OBJECT_HAS_METHOD (window_mirror, memory_usage); |
|
5157
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redo memory-usage mechanism, add way of dynamically initializing Lisp objects
Ben Wing <ben@xemacs.org>
parents:
5146
diff
changeset
|
5453 #endif |
|
1fae11d56ad2
redo memory-usage mechanism, add way of dynamically initializing Lisp objects
Ben Wing <ben@xemacs.org>
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5146
diff
changeset
|
5454 } |
|
1fae11d56ad2
redo memory-usage mechanism, add way of dynamically initializing Lisp objects
Ben Wing <ben@xemacs.org>
parents:
5146
diff
changeset
|
5455 |
|
1fae11d56ad2
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Ben Wing <ben@xemacs.org>
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diff
changeset
|
5456 void |
| 428 | 5457 syms_of_window (void) |
| 5458 { | |
|
5117
3742ea8250b5
Checking in final CVS version of workspace 'ben-lisp-object'
Ben Wing <ben@xemacs.org>
parents:
3078
diff
changeset
|
5459 INIT_LISP_OBJECT (window); |
|
3742ea8250b5
Checking in final CVS version of workspace 'ben-lisp-object'
Ben Wing <ben@xemacs.org>
parents:
3078
diff
changeset
|
5460 INIT_LISP_OBJECT (window_mirror); |
| 3092 | 5461 #ifdef NEW_GC |
|
5118
e0db3c197671
merge up to latest default branch, doesn't compile yet
Ben Wing <ben@xemacs.org>
diff
changeset
|
5462 INIT_LISP_OBJECT (face_cachel); |
|
e0db3c197671
merge up to latest default branch, doesn't compile yet
Ben Wing <ben@xemacs.org>
diff
changeset
|
5463 INIT_LISP_OBJECT (face_cachel_dynarr); |
|
e0db3c197671
merge up to latest default branch, doesn't compile yet
Ben Wing <ben@xemacs.org>
diff
changeset
|
5464 INIT_LISP_OBJECT (glyph_cachel); |
|
e0db3c197671
merge up to latest default branch, doesn't compile yet
Ben Wing <ben@xemacs.org>
diff
changeset
|
5465 INIT_LISP_OBJECT (glyph_cachel_dynarr); |
| 3092 | 5466 #endif /* NEW_GC */ |
| 442 | 5467 |
| 563 | 5468 DEFSYMBOL (Qwindowp); |
| 5469 DEFSYMBOL (Qwindow_live_p); | |
| 5470 DEFSYMBOL (Qdisplay_buffer); | |
| 428 | 5471 |
| 5472 #ifdef MEMORY_USAGE_STATS | |
| 563 | 5473 DEFSYMBOL (Qface_cache); |
| 5474 DEFSYMBOL (Qglyph_cache); | |
| 5475 DEFSYMBOL (Qline_start_cache); | |
| 428 | 5476 #ifdef HAVE_SCROLLBARS |
| 563 | 5477 DEFSYMBOL (Qscrollbar_instances); |
| 428 | 5478 #endif |
|
5170
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various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
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5157
diff
changeset
|
5479 DEFSYMBOL (Qredisplay_structs); |
| 428 | 5480 #endif |
| 5481 | |
| 707 | 5482 DEFSYMBOL (Qtruncate_partial_width_windows); |
| 1149 | 5483 DEFSYMBOL (Qcurrent_window_configuration); |
| 5484 DEFSYMBOL (Qset_window_configuration); | |
| 707 | 5485 |
| 428 | 5486 DEFSUBR (Fselected_window); |
| 5487 DEFSUBR (Flast_nonminibuf_window); | |
| 5488 DEFSUBR (Fminibuffer_window); | |
| 5489 DEFSUBR (Fwindow_minibuffer_p); | |
| 5490 DEFSUBR (Fwindowp); | |
| 5491 DEFSUBR (Fwindow_live_p); | |
| 5492 DEFSUBR (Fwindow_first_hchild); | |
| 5493 DEFSUBR (Fwindow_first_vchild); | |
| 5494 DEFSUBR (Fwindow_next_child); | |
| 5495 DEFSUBR (Fwindow_previous_child); | |
| 5496 DEFSUBR (Fwindow_parent); | |
| 5497 DEFSUBR (Fwindow_lowest_p); | |
| 5498 DEFSUBR (Fwindow_truncated_p); | |
| 5499 DEFSUBR (Fwindow_highest_p); | |
| 5500 DEFSUBR (Fwindow_leftmost_p); | |
| 5501 DEFSUBR (Fwindow_rightmost_p); | |
| 5502 DEFSUBR (Fpos_visible_in_window_p); | |
| 5503 DEFSUBR (Fwindow_buffer); | |
| 5504 DEFSUBR (Fwindow_frame); | |
| 5505 DEFSUBR (Fwindow_height); | |
| 5506 DEFSUBR (Fwindow_displayed_height); | |
| 5507 DEFSUBR (Fwindow_width); | |
| 442 | 5508 DEFSUBR (Fwindow_full_width); |
| 428 | 5509 DEFSUBR (Fwindow_pixel_height); |
| 5510 DEFSUBR (Fwindow_pixel_width); | |
| 442 | 5511 DEFSUBR (Fwindow_text_area_height); |
| 428 | 5512 DEFSUBR (Fwindow_text_area_pixel_height); |
| 5513 DEFSUBR (Fwindow_displayed_text_pixel_height); | |
| 5514 DEFSUBR (Fwindow_text_area_pixel_width); | |
| 5515 DEFSUBR (Fwindow_hscroll); | |
| 438 | 5516 DEFSUBR (Fset_window_hscroll); |
| 428 | 5517 DEFSUBR (Fmodeline_hscroll); |
| 5518 DEFSUBR (Fset_modeline_hscroll); | |
| 5519 DEFSUBR (Fwindow_pixel_edges); | |
| 5520 DEFSUBR (Fwindow_text_area_pixel_edges); | |
| 5521 DEFSUBR (Fwindow_point); | |
| 5522 DEFSUBR (Fwindow_start); | |
| 5523 DEFSUBR (Fwindow_end); | |
| 442 | 5524 DEFSUBR (Fwindow_last_line_visible_height); |
| 428 | 5525 DEFSUBR (Fset_window_point); |
| 5526 DEFSUBR (Fset_window_start); | |
| 5527 DEFSUBR (Fwindow_dedicated_p); | |
| 5528 DEFSUBR (Fset_window_dedicated_p); | |
| 5529 DEFSUBR (Fnext_window); | |
| 5530 DEFSUBR (Fprevious_window); | |
| 5531 DEFSUBR (Fnext_vertical_window); | |
| 5532 DEFSUBR (Fother_window); | |
| 5533 DEFSUBR (Fget_lru_window); | |
| 5534 DEFSUBR (Fget_largest_window); | |
| 5535 DEFSUBR (Fget_buffer_window); | |
| 5536 DEFSUBR (Fwindow_left_margin_pixel_width); | |
| 5537 DEFSUBR (Fwindow_right_margin_pixel_width); | |
| 5538 DEFSUBR (Fdelete_other_windows); | |
| 5539 DEFSUBR (Fdelete_windows_on); | |
| 5540 DEFSUBR (Freplace_buffer_in_windows); | |
| 5541 DEFSUBR (Fdelete_window); | |
| 5542 DEFSUBR (Fset_window_buffer); | |
| 5543 DEFSUBR (Fselect_window); | |
| 5544 DEFSUBR (Fsplit_window); | |
| 5545 DEFSUBR (Fenlarge_window); | |
| 5546 DEFSUBR (Fenlarge_window_pixels); | |
| 5547 DEFSUBR (Fshrink_window); | |
| 5548 DEFSUBR (Fshrink_window_pixels); | |
| 5549 DEFSUBR (Fscroll_up); | |
| 5550 DEFSUBR (Fscroll_down); | |
| 5551 DEFSUBR (Fscroll_left); | |
| 5552 DEFSUBR (Fscroll_right); | |
| 5553 DEFSUBR (Fother_window_for_scrolling); | |
| 5554 DEFSUBR (Fscroll_other_window); | |
| 5555 DEFSUBR (Fcenter_to_window_line); | |
| 5556 DEFSUBR (Fmove_to_window_line); | |
| 5557 DEFSUBR (Fcurrent_pixel_column); | |
| 2289 | 5558 DEFSUBR (Fcurrent_pixel_row); |
| 428 | 5559 } |
| 5560 | |
| 5561 void | |
| 5562 reinit_vars_of_window (void) | |
| 5563 { | |
| 5564 /* Make sure all windows get marked */ | |
| 5565 minibuf_window = Qnil; | |
| 5566 staticpro_nodump (&minibuf_window); | |
| 5567 } | |
| 5568 | |
| 5569 void | |
| 5570 vars_of_window (void) | |
| 5571 { | |
|
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5146
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changeset
|
5572 #ifdef MEMORY_USAGE_STATS |
|
5170
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5157
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|
5573 Lisp_Object l; |
|
5ddbab03b0e6
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5157
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changeset
|
5574 |
|
5ddbab03b0e6
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changeset
|
5575 l = listu (Qline_start_cache, |
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5576 #ifdef NEW_GC |
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5577 Qt, |
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5578 #endif |
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5579 Qface_cache, Qglyph_cache, |
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5580 #ifndef NEW_GC |
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5581 Qt, |
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5582 #endif |
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5583 Qredisplay_structs, |
|
5164
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5584 #ifdef HAVE_SCROLLBARS |
|
5170
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5585 Qscrollbar_instances, |
|
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5586 #endif |
|
5170
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5587 intern ("window-mirror"), |
|
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|
5588 Qunbound); |
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5589 |
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5590 OBJECT_HAS_PROPERTY (window, memusage_stats_list, l); |
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5591 |
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5592 l = listu (Qredisplay_structs, |
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|
5593 #ifdef HAVE_SCROLLBARS |
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5594 Qt, Qscrollbar_instances, |
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|
5595 #endif |
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|
5596 Qunbound); |
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|
5597 OBJECT_HAS_PROPERTY (window_mirror, memusage_stats_list, l); |
|
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5598 #endif /* MEMORY_USAGE_STATS */ |
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|
5599 |
| 428 | 5600 DEFVAR_BOOL ("scroll-on-clipped-lines", &scroll_on_clipped_lines /* |
| 5601 *Non-nil means to scroll if point lands on a line which is clipped. | |
| 5602 */ ); | |
| 5603 scroll_on_clipped_lines = 1; | |
| 5604 | |
| 5605 DEFVAR_LISP ("temp-buffer-show-function", &Vtemp_buffer_show_function /* | |
| 5606 Non-nil means call as function to display a help buffer. | |
| 5607 The function is called with one argument, the buffer to be displayed. | |
| 5608 Used by `with-output-to-temp-buffer'. | |
| 5609 If this function is used, then it must do the entire job of showing | |
| 5610 the buffer; `temp-buffer-show-hook' is not run unless this function runs it. | |
| 442 | 5611 \(`temp-buffer-show-hook' is obsolete. Do not use in new code.) |
| 428 | 5612 */ ); |
| 5613 Vtemp_buffer_show_function = Qnil; | |
| 5614 | |
| 5615 DEFVAR_LISP ("minibuffer-scroll-window", &Vminibuffer_scroll_window /* | |
| 5616 Non-nil means it is the window that \\<minibuffer-local-map>\\[scroll-other-window] in minibuffer should scroll. | |
| 5617 */ ); | |
| 5618 Vminibuffer_scroll_window = Qnil; | |
| 5619 | |
| 5620 DEFVAR_LISP ("other-window-scroll-buffer", &Vother_window_scroll_buffer /* | |
| 5621 If non-nil, this is a buffer and \\[scroll-other-window] should scroll its window. | |
| 5622 */ ); | |
| 5623 Vother_window_scroll_buffer = Qnil; | |
| 5624 | |
| 5625 DEFVAR_LISP ("window-pixel-scroll-increment", &Vwindow_pixel_scroll_increment /* | |
| 5626 *Number of pixels to scroll by per requested line. | |
| 5627 If nil then normal line scrolling occurs regardless of line height. | |
| 5628 If t then scrolling is done in increments equal to the height of the default face. | |
| 5629 */ ); | |
| 5630 Vwindow_pixel_scroll_increment = Qt; | |
| 5631 | |
| 5632 DEFVAR_INT ("next-screen-context-lines", &next_screen_context_lines /* | |
| 5633 *Number of lines of continuity when scrolling by screenfuls. | |
| 5634 */ ); | |
| 5635 next_screen_context_lines = 2; | |
| 5636 | |
| 5637 DEFVAR_INT ("window-min-height", &window_min_height /* | |
| 5638 *Delete any window less than this tall (including its modeline). | |
| 5639 */ ); | |
| 5640 window_min_height = 4; | |
| 5641 | |
| 5642 DEFVAR_INT ("window-min-width", &window_min_width /* | |
| 5643 *Delete any window less than this wide. | |
| 5644 */ ); | |
| 5645 window_min_width = 10; | |
| 5646 } | |
| 5647 | |
| 5648 void | |
| 5649 specifier_vars_of_window (void) | |
| 5650 { | |
| 5651 DEFVAR_SPECIFIER ("modeline-shadow-thickness", &Vmodeline_shadow_thickness /* | |
| 5652 *How thick to draw 3D shadows around modelines. | |
| 5653 If this is set to 0, modelines will be the traditional 2D. Sizes above | |
| 5654 10 will be accepted but the maximum thickness that will be drawn is 10. | |
| 5655 This is a specifier; use `set-specifier' to change it. | |
| 5656 */ ); | |
| 5657 Vmodeline_shadow_thickness = Fmake_specifier (Qinteger); | |
| 5658 /* The initial value for modeline-shadow-thickness is 2, but if the | |
| 5659 user removes all specifications we provide a fallback value of 0, | |
| 5660 which is probably what was expected. */ | |
| 5661 set_specifier_fallback (Vmodeline_shadow_thickness, | |
| 5662 list1 (Fcons (Qnil, Qzero))); | |
|
5581
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Aidan Kehoe <kehoea@parhasard.net>
parents:
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|
5663 Fadd_spec_to_specifier (Vmodeline_shadow_thickness, make_fixnum (2), |
| 428 | 5664 Qnil, Qnil, Qnil); |
| 5665 set_specifier_caching (Vmodeline_shadow_thickness, | |
| 438 | 5666 offsetof (struct window, modeline_shadow_thickness), |
| 428 | 5667 modeline_shadow_thickness_changed, |
| 444 | 5668 0, 0, 0); |
| 428 | 5669 |
| 5670 DEFVAR_SPECIFIER ("has-modeline-p", &Vhas_modeline_p /* | |
| 5671 *Whether the modeline should be displayed. | |
| 5672 This is a specifier; use `set-specifier' to change it. | |
| 5673 */ ); | |
| 5674 Vhas_modeline_p = Fmake_specifier (Qboolean); | |
| 5675 set_specifier_fallback (Vhas_modeline_p, | |
| 5676 list1 (Fcons (Qnil, Qt))); | |
| 5677 set_specifier_caching (Vhas_modeline_p, | |
| 438 | 5678 offsetof (struct window, has_modeline_p), |
| 428 | 5679 /* #### It's strange that we need a special |
| 5680 flag to indicate that the shadow-thickness | |
| 5681 has changed, but not one to indicate that | |
| 5682 the modeline has been turned off or on. */ | |
| 5683 some_window_value_changed, | |
| 444 | 5684 0, 0, 0); |
| 428 | 5685 |
| 5686 DEFVAR_SPECIFIER ("vertical-divider-always-visible-p", | |
| 5687 &Vvertical_divider_always_visible_p /* | |
| 5688 *Should XEmacs always display vertical dividers between windows. | |
| 5689 | |
| 5690 When this is non-nil, vertical dividers are always shown, and are | |
| 5691 draggable. When it is nil, vertical dividers are shown only when | |
| 5692 there are no scrollbars in between windows, and are not draggable. | |
| 5693 | |
| 5694 This is a specifier; use `set-specifier' to change it. | |
| 5695 */ ); | |
| 5696 Vvertical_divider_always_visible_p = Fmake_specifier (Qboolean); | |
| 5697 set_specifier_fallback (Vvertical_divider_always_visible_p, | |
| 5698 list1 (Fcons (Qnil, Qt))); | |
| 5699 set_specifier_caching (Vvertical_divider_always_visible_p, | |
| 438 | 5700 offsetof (struct window, |
| 5701 vertical_divider_always_visible_p), | |
| 428 | 5702 vertical_divider_changed_in_window, |
| 444 | 5703 0, 0, 0); |
| 428 | 5704 |
| 5705 DEFVAR_SPECIFIER ("vertical-divider-shadow-thickness", &Vvertical_divider_shadow_thickness /* | |
| 5706 *How thick to draw 3D shadows around vertical dividers. | |
| 5707 This is a specifier; use `set-specifier' to change it. | |
| 5708 */ ); | |
| 5709 Vvertical_divider_shadow_thickness = Fmake_specifier (Qinteger); | |
| 5710 set_specifier_fallback (Vvertical_divider_shadow_thickness, | |
| 5711 list1 (Fcons (Qnil, Qzero))); | |
|
5581
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|
5712 Fadd_spec_to_specifier (Vvertical_divider_shadow_thickness, make_fixnum (2), |
| 428 | 5713 Qnil, Qnil, Qnil); |
| 5714 set_specifier_caching (Vvertical_divider_shadow_thickness, | |
| 438 | 5715 offsetof (struct window, |
| 5716 vertical_divider_shadow_thickness), | |
| 428 | 5717 vertical_divider_changed_in_window, |
| 444 | 5718 0, 0, 0); |
| 428 | 5719 DEFVAR_SPECIFIER ("vertical-divider-line-width", &Vvertical_divider_line_width /* |
| 5720 *The width of the vertical dividers, not including shadows. | |
| 5721 | |
| 5722 For TTY windows, divider line is always one character wide. When | |
| 5723 instance of this specifier is zero in a TTY window, no divider is | |
| 5724 drawn at all between windows. When non-zero, a one character wide | |
| 5725 divider is displayed. | |
| 5726 | |
| 5727 This is a specifier; use `set-specifier' to change it. | |
| 5728 */ ); | |
| 5729 | |
| 5730 Vvertical_divider_line_width = Fmake_specifier (Qnatnum); | |
| 5731 { | |
| 5732 Lisp_Object fb = Qnil; | |
| 5733 #ifdef HAVE_TTY | |
|
5581
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Aidan Kehoe <kehoea@parhasard.net>
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5474
diff
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|
5734 fb = Fcons (Fcons (list1 (Qtty), make_fixnum (1)), fb); |
| 428 | 5735 #endif |
| 462 | 5736 #ifdef HAVE_GTK |
|
5581
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5474
diff
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|
5737 fb = Fcons (Fcons (list1 (Qgtk), make_fixnum (3)), fb); |
| 462 | 5738 #endif |
| 428 | 5739 #ifdef HAVE_X_WINDOWS |
|
5581
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5474
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|
5740 fb = Fcons (Fcons (list1 (Qx), make_fixnum (3)), fb); |
| 428 | 5741 #endif |
| 5742 #ifdef HAVE_MS_WINDOWS | |
| 5743 /* #### This should be made magic and made to obey system settings */ | |
|
5581
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5474
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changeset
|
5744 fb = Fcons (Fcons (list1 (Qmswindows), make_fixnum (3)), fb); |
| 428 | 5745 #endif |
| 5746 set_specifier_fallback (Vvertical_divider_line_width, fb); | |
| 5747 } | |
| 5748 set_specifier_caching (Vvertical_divider_line_width, | |
| 438 | 5749 offsetof (struct window, |
| 5750 vertical_divider_line_width), | |
| 428 | 5751 vertical_divider_changed_in_window, |
| 444 | 5752 0, 0, 0); |
| 428 | 5753 |
| 5754 DEFVAR_SPECIFIER ("vertical-divider-spacing", &Vvertical_divider_spacing /* | |
| 5755 *How much space to leave around the vertical dividers. | |
| 5756 | |
| 5757 In TTY windows, spacing is always zero, and the value of this | |
| 5758 specifier is ignored. | |
| 5759 | |
| 5760 This is a specifier; use `set-specifier' to change it. | |
| 5761 */ ); | |
| 5762 Vvertical_divider_spacing = Fmake_specifier (Qnatnum); | |
| 5763 { | |
| 5764 Lisp_Object fb = Qnil; | |
| 5765 #ifdef HAVE_TTY | |
| 5766 fb = Fcons (Fcons (list1 (Qtty), Qzero), fb); | |
| 5767 #endif | |
| 5768 #ifdef HAVE_X_WINDOWS | |
| 5769 /* #### 3D dividers look great on MS Windows with spacing = 0. | |
| 5770 Should not the same value be the fallback under X? - kkm */ | |
|
5581
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Aidan Kehoe <kehoea@parhasard.net>
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5474
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changeset
|
5771 fb = Fcons (Fcons (list1 (Qx), make_fixnum (2)), fb); |
| 428 | 5772 #endif |
| 462 | 5773 #ifdef HAVE_GTK |
| 5774 fb = Fcons (Fcons (list1 (Qgtk), Qzero), fb); | |
| 5775 #endif | |
| 428 | 5776 #ifdef HAVE_MS_WINDOWS |
| 5777 fb = Fcons (Fcons (list1 (Qmswindows), Qzero), fb); | |
| 5778 #endif | |
| 5779 set_specifier_fallback (Vvertical_divider_spacing, fb); | |
| 5780 } | |
| 5781 set_specifier_caching (Vvertical_divider_spacing, | |
| 438 | 5782 offsetof (struct window, vertical_divider_spacing), |
| 428 | 5783 vertical_divider_changed_in_window, |
| 444 | 5784 0, 0, 0); |
| 5785 } |