Mercurial > hg > xemacs-beta
annotate src/window.c @ 5902:2dc8711af537
Make get_char_table in loop bodies more tolerable without optimization.
2015-05-08 Aidan Kehoe <kehoea@parhasard.net>
* chartab.h (get_char_table):
* chartab.h (get_char_table_mirrors_ok): New.
Provide get_char_table_mirrors_ok, which differs from
get_char_table only if ERROR_CHECK_TYPES is defined.
Implement it, and get_char_table, using a macro wrapper of
get_char_table_1, so that on builds without optimization each
get_char_table no longer requires two C function calls.
* chartab.c (updating_mirror_get_range_char_table):
Use get_char_table_mirrors_ok.
* syntax.h:
Ditto.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Fri, 08 May 2015 12:47:13 +0100 |
| parents | b94d6e89ea5b |
| children |
| 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" |
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44 #include "extents.h" |
| 428 | 45 #include "faces.h" |
| 872 | 46 #include "frame-impl.h" |
| 800 | 47 #include "glyphs.h" |
| 48 #include "gutter.h" | |
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49 #include "fontcolor.h" |
| 428 | 50 #include "redisplay.h" |
| 872 | 51 #include "window-impl.h" |
| 428 | 52 |
| 1149 | 53 Lisp_Object Qwindowp, Qwindow_live_p; |
| 428 | 54 Lisp_Object Qdisplay_buffer; |
| 55 | |
| 56 #ifdef MEMORY_USAGE_STATS | |
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57 Lisp_Object Qface_cache, Qglyph_cache, Qline_start_cache, Qredisplay_structs; |
| 428 | 58 #ifdef HAVE_SCROLLBARS |
| 59 Lisp_Object Qscrollbar_instances; | |
| 60 #endif | |
| 61 #endif | |
| 62 | |
| 1979 | 63 extern int allow_deletion_of_last_visible_frame; |
| 64 | |
| 428 | 65 EXFUN (Fnext_window, 4); |
| 66 | |
| 67 static int window_pixel_width_to_char_width (struct window *w, | |
| 68 int pixel_width, | |
| 69 int include_margins_p); | |
| 70 static int window_char_width_to_pixel_width (struct window *w, | |
| 71 int char_width, | |
| 72 int include_margins_p); | |
| 73 static int window_pixel_height_to_char_height (struct window *w, | |
| 74 int pixel_height, | |
| 75 int include_gutters_p); | |
| 76 static int window_char_height_to_pixel_height (struct window *w, | |
| 77 int char_height, | |
| 78 int include_gutters_p); | |
| 444 | 79 static void change_window_height (Lisp_Object window, int delta, |
| 80 Lisp_Object horizontalp, int inpixels); | |
| 428 | 81 |
| 82 /* Thickness of shadow border around 3d modelines. */ | |
| 83 Lisp_Object Vmodeline_shadow_thickness; | |
| 84 | |
| 85 /* Whether vertical dividers are draggable and displayed */ | |
| 86 Lisp_Object Vvertical_divider_always_visible_p; | |
| 87 | |
| 88 /* Whether a modeline should be displayed. */ | |
| 89 Lisp_Object Vhas_modeline_p; | |
| 90 | |
| 91 /* Thickness of shadow border around vertical dividers. */ | |
| 92 Lisp_Object Vvertical_divider_shadow_thickness; | |
| 93 | |
| 94 /* Divider surface width (not counting 3-d borders) */ | |
| 95 Lisp_Object Vvertical_divider_line_width; | |
| 96 | |
| 442 | 97 /* Spacing between outer edge of divider border and window edge */ |
| 428 | 98 Lisp_Object Vvertical_divider_spacing; |
| 99 | |
| 100 /* How much to scroll by per-line. */ | |
| 101 Lisp_Object Vwindow_pixel_scroll_increment; | |
| 102 | |
| 103 /* Scroll if point lands on the bottom line and that line is partially | |
| 104 clipped. */ | |
| 105 int scroll_on_clipped_lines; | |
| 106 | |
| 107 /* The minibuffer window of the selected frame. | |
| 108 Note that you cannot test for minibufferness of an arbitrary window | |
| 109 by comparing against this; but you can test for minibufferness of | |
| 110 the selected window. */ | |
| 111 Lisp_Object minibuf_window; | |
| 112 | |
| 113 /* Non-nil means it is the window for C-M-v to scroll | |
| 114 when the minibuffer is selected. */ | |
| 115 Lisp_Object Vminibuffer_scroll_window; | |
| 116 | |
| 117 /* Non-nil means this is the buffer whose window C-M-v should scroll. */ | |
| 118 Lisp_Object Vother_window_scroll_buffer; | |
| 119 | |
| 120 /* Non-nil means it's the function to call to display temp buffers. */ | |
| 121 Lisp_Object Vtemp_buffer_show_function; | |
| 122 | |
| 123 /* If a window gets smaller than either of these, it is removed. */ | |
| 458 | 124 Fixnum window_min_height; |
| 125 Fixnum window_min_width; | |
| 428 | 126 |
| 127 /* Number of lines of continuity in scrolling by screenfuls. */ | |
| 458 | 128 Fixnum next_screen_context_lines; |
| 428 | 129 |
| 1149 | 130 Lisp_Object Qcurrent_window_configuration, Qset_window_configuration; |
| 428 | 131 |
| 707 | 132 Lisp_Object Qtruncate_partial_width_windows; |
| 133 | |
| 428 | 134 #define SET_LAST_MODIFIED(w, cache_too) \ |
| 135 do { \ | |
| 136 (w)->last_modified[CURRENT_DISP] = Qzero; \ | |
| 137 (w)->last_modified[DESIRED_DISP] = Qzero; \ | |
| 138 (w)->last_modified[CMOTION_DISP] = Qzero; \ | |
| 139 if (cache_too) \ | |
| 140 (w)->line_cache_last_updated = Qzero; \ | |
| 141 } while (0) | |
| 142 | |
| 143 #define SET_LAST_FACECHANGE(w) \ | |
| 144 do { \ | |
| 145 (w)->last_facechange[CURRENT_DISP] = Qzero; \ | |
| 146 (w)->last_facechange[DESIRED_DISP] = Qzero; \ | |
| 147 (w)->last_facechange[CMOTION_DISP] = Qzero; \ | |
| 148 } while (0) | |
| 149 | |
| 150 | |
| 1204 | 151 |
| 152 static const struct memory_description int_description_1[] = { | |
| 153 { XD_END } | |
| 154 }; | |
| 155 | |
| 156 static const struct sized_memory_description int_description = { | |
| 157 sizeof (int), | |
| 158 int_description_1 | |
| 159 }; | |
| 160 | |
| 161 static const struct memory_description int_dynarr_description_1[] = { | |
| 162 XD_DYNARR_DESC (int_dynarr, &int_description), | |
| 163 { XD_END } | |
| 164 }; | |
| 165 | |
| 166 static const struct sized_memory_description int_dynarr_description = { | |
| 167 sizeof (int_dynarr), | |
| 168 int_dynarr_description_1 | |
| 169 }; | |
| 170 | |
| 171 static const struct memory_description face_cachel_description_1[] = { | |
| 2367 | 172 { XD_BLOCK_PTR, offsetof (face_cachel, merged_faces), |
| 2551 | 173 1, { &int_dynarr_description } }, |
| 1204 | 174 { XD_LISP_OBJECT, offsetof (face_cachel, face) }, |
| 175 { XD_LISP_OBJECT, offsetof (face_cachel, foreground) }, | |
| 176 { XD_LISP_OBJECT, offsetof (face_cachel, background) }, | |
| 177 { XD_LISP_OBJECT_ARRAY, offsetof (face_cachel, font), NUM_LEADING_BYTES }, | |
| 178 { XD_LISP_OBJECT, offsetof (face_cachel, display_table) }, | |
| 179 { XD_LISP_OBJECT, offsetof (face_cachel, background_pixmap) }, | |
| 180 { XD_END } | |
| 181 }; | |
| 182 | |
| 3092 | 183 #ifdef NEW_GC |
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184 DEFINE_DUMPABLE_INTERNAL_LISP_OBJECT ("face-cachel", face_cachel, |
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185 0, face_cachel_description_1, |
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186 Lisp_Face_Cachel); |
| 3092 | 187 #endif /* NEW_GC */ |
| 188 | |
| 1204 | 189 static const struct sized_memory_description face_cachel_description = { |
| 190 sizeof (face_cachel), | |
| 191 face_cachel_description_1 | |
| 192 }; | |
| 193 | |
| 194 static const struct memory_description face_cachel_dynarr_description_1[] = { | |
| 3092 | 195 #ifdef NEW_GC |
| 196 XD_LISP_DYNARR_DESC (face_cachel_dynarr, &face_cachel_description), | |
| 197 #else /* not NEW_GC */ | |
| 1204 | 198 XD_DYNARR_DESC (face_cachel_dynarr, &face_cachel_description), |
| 3092 | 199 #endif /* not NEW_GC */ |
| 1204 | 200 { XD_END } |
| 201 }; | |
| 202 | |
| 3092 | 203 #ifdef NEW_GC |
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204 DEFINE_DUMPABLE_INTERNAL_LISP_OBJECT ("face-cachel-dynarr", face_cachel_dynarr, |
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205 0, face_cachel_dynarr_description_1, |
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206 face_cachel_dynarr); |
| 3092 | 207 #else /* not NEW_GC */ |
| 1204 | 208 static const struct sized_memory_description face_cachel_dynarr_description = { |
| 209 sizeof (face_cachel_dynarr), | |
| 210 face_cachel_dynarr_description_1 | |
| 211 }; | |
| 3092 | 212 #endif /* not NEW_GC */ |
| 1204 | 213 |
| 214 static const struct memory_description glyph_cachel_description_1[] = { | |
| 215 { XD_LISP_OBJECT, offsetof (glyph_cachel, glyph) }, | |
| 216 { XD_END } | |
| 217 }; | |
| 218 | |
| 3092 | 219 #ifdef NEW_GC |
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220 DEFINE_DUMPABLE_INTERNAL_LISP_OBJECT ("glyph-cachel", glyph_cachel, |
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221 0, glyph_cachel_description_1, |
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222 Lisp_Glyph_Cachel); |
| 3092 | 223 #endif /* NEW_GC */ |
| 224 | |
| 1204 | 225 static const struct sized_memory_description glyph_cachel_description = { |
| 226 sizeof (glyph_cachel), | |
| 227 glyph_cachel_description_1 | |
| 228 }; | |
| 229 | |
| 230 static const struct memory_description glyph_cachel_dynarr_description_1[] = { | |
| 3092 | 231 #ifdef NEW_GC |
| 232 XD_LISP_DYNARR_DESC (glyph_cachel_dynarr, &glyph_cachel_description), | |
| 233 #else /* not NEW_GC */ | |
| 1204 | 234 XD_DYNARR_DESC (glyph_cachel_dynarr, &glyph_cachel_description), |
| 3092 | 235 #endif /* not NEW_GC */ |
| 1204 | 236 { XD_END } |
| 237 }; | |
| 238 | |
| 3092 | 239 #ifdef NEW_GC |
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240 DEFINE_DUMPABLE_INTERNAL_LISP_OBJECT ("glyph-cachel-dynarr", |
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241 glyph_cachel_dynarr, 0, |
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242 glyph_cachel_dynarr_description_1, |
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243 glyph_cachel_dynarr); |
| 3092 | 244 #else /* not NEW_GC */ |
| 1204 | 245 static const struct sized_memory_description glyph_cachel_dynarr_description = { |
| 246 sizeof (glyph_cachel_dynarr), | |
| 247 glyph_cachel_dynarr_description_1 | |
| 248 }; | |
| 3092 | 249 #endif /* not NEW_GC */ |
| 1204 | 250 |
| 251 static const struct memory_description line_start_cache_description_1[] = { | |
| 252 { XD_END } | |
| 253 }; | |
| 254 | |
| 255 static const struct sized_memory_description line_start_cache_description = { | |
| 256 sizeof (line_start_cache), | |
| 257 line_start_cache_description_1 | |
| 258 }; | |
| 259 | |
| 260 static const struct memory_description line_start_cache_dynarr_description_1[] = { | |
| 261 XD_DYNARR_DESC (line_start_cache_dynarr, &line_start_cache_description), | |
| 262 { XD_END } | |
| 263 }; | |
| 264 | |
| 265 static const struct sized_memory_description line_start_cache_dynarr_description = { | |
| 266 sizeof (line_start_cache_dynarr), | |
| 267 line_start_cache_dynarr_description_1 | |
| 268 }; | |
| 269 | |
| 270 static const struct memory_description window_description [] = { | |
| 271 #define WINDOW_SLOT(slot) { XD_LISP_OBJECT, offsetof (struct window, slot) }, | |
| 272 #define WINDOW_SLOT_ARRAY(slot, size) \ | |
| 273 { XD_LISP_OBJECT_ARRAY, offsetof (struct window, slot), size }, | |
| 274 #include "winslots.h" | |
| 275 | |
| 3092 | 276 #ifdef NEW_GC |
| 277 { XD_LISP_OBJECT, offsetof (struct window, face_cachels) }, | |
| 278 { XD_LISP_OBJECT, offsetof (struct window, glyph_cachels) }, | |
| 279 #else /* not NEW_GC */ | |
| 2367 | 280 { XD_BLOCK_PTR, offsetof (struct window, face_cachels), |
| 2551 | 281 1, { &face_cachel_dynarr_description } }, |
| 2367 | 282 { XD_BLOCK_PTR, offsetof (struct window, glyph_cachels), |
| 2551 | 283 1, { &glyph_cachel_dynarr_description } }, |
| 3092 | 284 #endif /* not NEW_GC */ |
| 2367 | 285 { XD_BLOCK_PTR, offsetof (struct window, line_start_cache), |
| 2775 | 286 1, { &line_start_cache_dynarr_description }, XD_FLAG_NO_KKCC }, |
| 1204 | 287 { XD_END } |
| 288 }; | |
| 428 | 289 |
| 290 static Lisp_Object | |
| 291 mark_window (Lisp_Object obj) | |
| 292 { | |
| 293 struct window *window = XWINDOW (obj); | |
| 294 | |
| 295 mark_face_cachels (window->face_cachels); | |
| 296 mark_glyph_cachels (window->glyph_cachels); | |
| 297 | |
| 617 | 298 #define WINDOW_SLOT(slot) mark_object (window->slot); |
| 428 | 299 #include "winslots.h" |
| 300 | |
| 301 return Qnil; | |
| 302 } | |
| 303 | |
| 304 static void | |
| 2286 | 305 print_window (Lisp_Object obj, Lisp_Object printcharfun, |
| 306 int UNUSED (escapeflag)) | |
| 428 | 307 { |
| 4846 | 308 Lisp_Object buf; |
| 309 | |
| 428 | 310 if (print_readably) |
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311 printing_unreadable_lisp_object (obj, 0); |
| 428 | 312 |
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313 write_ascstring (printcharfun, "#<window"); |
| 4846 | 314 buf = XWINDOW_BUFFER (obj); |
| 315 if (EQ (buf, Qt)) | |
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316 write_ascstring (printcharfun, " during creation"); |
| 4846 | 317 else if (!NILP (buf)) |
| 428 | 318 { |
| 4846 | 319 |
| 320 Lisp_Object name = XBUFFER (buf)->name; | |
| 800 | 321 write_fmt_string_lisp (printcharfun, " on %S", 1, name); |
| 428 | 322 } |
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323 write_fmt_string (printcharfun, " 0x%x>", LISP_OBJECT_UID (obj)); |
| 428 | 324 } |
| 325 | |
| 326 static void | |
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327 finalize_window (Lisp_Object obj) |
| 428 | 328 { |
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329 struct window *w = XWINDOW (obj); |
| 428 | 330 |
| 331 if (w->line_start_cache) | |
| 332 { | |
| 333 Dynarr_free (w->line_start_cache); | |
| 334 w->line_start_cache = 0; | |
| 335 } | |
| 336 | |
| 337 if (w->face_cachels) | |
| 338 { | |
| 339 int i; | |
| 340 | |
| 341 for (i = 0; i < Dynarr_length (w->face_cachels); i++) | |
| 342 { | |
| 343 struct face_cachel *cachel = Dynarr_atp (w->face_cachels, i); | |
| 344 if (cachel->merged_faces) | |
| 345 { | |
| 346 Dynarr_free (cachel->merged_faces); | |
| 347 cachel->merged_faces = 0; | |
| 348 } | |
| 349 } | |
| 350 Dynarr_free (w->face_cachels); | |
| 351 w->face_cachels = 0; | |
| 352 } | |
| 353 | |
| 354 if (w->glyph_cachels) | |
| 355 { | |
| 356 Dynarr_free (w->glyph_cachels); | |
| 357 w->glyph_cachels = 0; | |
| 358 } | |
| 359 } | |
| 360 | |
| 844 | 361 /* These caches map buffers to markers. They are key-weak so that entries |
| 362 remain around as long as the buffers do. */ | |
| 363 | |
| 364 static Lisp_Object | |
| 365 make_saved_buffer_point_cache (void) | |
| 366 { | |
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367 return make_lisp_hash_table (20, HASH_TABLE_KEY_WEAK, Qeq); |
| 844 | 368 } |
| 369 | |
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370 DEFINE_NODUMP_LISP_OBJECT ("window", window, |
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371 mark_window, print_window, finalize_window, |
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372 0, 0, window_description, struct window); |
| 428 | 373 |
| 374 #define INIT_DISP_VARIABLE(field, initialization) \ | |
| 375 p->field[CURRENT_DISP] = initialization; \ | |
| 376 p->field[DESIRED_DISP] = initialization; \ | |
| 377 p->field[CMOTION_DISP] = initialization; | |
| 378 | |
| 379 /* We have an implicit assertion that the first two elements (default | |
| 380 and modeline faces) are always present in the face_element_cache. | |
| 381 Normally redisplay ensures this. However, it is possible for a | |
| 382 window to get created and functions which reference these values | |
| 383 called before redisplay works with the window for the first time. | |
| 384 All callers of allocate_window should therefore call | |
| 385 reset_face_cachels on the created window. We can't do it | |
| 386 here because the window must have its frame pointer set or | |
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387 reset_face_cachels will fail. |
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388 A similar requirement holds for reset_glyph_cachels. We *could* do |
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389 that here (there's no reference to the frame pointer in that function), |
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390 but we may as well have the same discipline. */ |
| 428 | 391 Lisp_Object |
| 392 allocate_window (void) | |
| 393 { | |
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394 Lisp_Object obj = ALLOC_NORMAL_LISP_OBJECT (window); |
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395 struct window *p = XWINDOW (obj); |
| 617 | 396 |
| 397 #define WINDOW_SLOT(slot) p->slot = Qnil; | |
| 398 #include "winslots.h" | |
| 399 | |
| 428 | 400 INIT_DISP_VARIABLE (start, Fmake_marker ()); |
| 401 INIT_DISP_VARIABLE (pointm, Fmake_marker ()); | |
| 402 p->sb_point = Fmake_marker (); | |
| 844 | 403 p->saved_point_cache = make_saved_buffer_point_cache (); |
| 404 p->saved_last_window_start_cache = make_saved_buffer_point_cache (); | |
| 428 | 405 p->use_time = Qzero; |
| 406 INIT_DISP_VARIABLE (last_modified, Qzero); | |
| 407 INIT_DISP_VARIABLE (last_point, Fmake_marker ()); | |
| 408 INIT_DISP_VARIABLE (last_start, Fmake_marker ()); | |
| 409 INIT_DISP_VARIABLE (last_facechange, Qzero); | |
| 3092 | 410 #ifdef NEW_GC |
| 411 p->face_cachels = Dynarr_lisp_new (face_cachel, | |
| 412 &lrecord_face_cachel_dynarr, | |
| 413 &lrecord_face_cachel); | |
| 414 p->glyph_cachels = Dynarr_lisp_new (glyph_cachel, | |
| 415 &lrecord_glyph_cachel_dynarr, | |
| 416 &lrecord_glyph_cachel); | |
| 417 #else /* not NEW_GC */ | |
| 428 | 418 p->face_cachels = Dynarr_new (face_cachel); |
| 419 p->glyph_cachels = Dynarr_new (glyph_cachel); | |
| 3092 | 420 #endif /* not NEW_GC */ |
| 428 | 421 p->line_start_cache = Dynarr_new (line_start_cache); |
| 450 | 422 p->subwindow_instance_cache = make_image_instance_cache_hash_table (); |
| 423 | |
| 428 | 424 p->line_cache_last_updated = Qzero; |
| 442 | 425 |
| 428 | 426 p->windows_changed = 1; |
| 427 p->shadow_thickness_changed = 1; | |
| 428 | |
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429 return obj; |
| 428 | 430 } |
| 431 #undef INIT_DISP_VARIABLE | |
| 432 | |
| 617 | 433 /************************************************************************/ |
| 434 /* Window mirror structure */ | |
| 435 /************************************************************************/ | |
| 436 | |
| 428 | 437 /* |
| 438 * The redisplay structures used to be stored with each window. While | |
| 439 * they are logically something associated with frames they can't be | |
| 440 * stored there with a redisplay which handles variable height lines. | |
| 441 * Lines in horizontally split windows might not line up. So they get | |
| 442 * stored with the windows. | |
| 443 * | |
| 444 * The problem with this is window configurations. When restoring a | |
| 445 * window configuration it now becomes problematic to do an | |
| 446 * incremental redisplay. The solution is to store the redisplay | |
| 447 * structures with the frame as they should be but laid out in the | |
| 448 * same manner as the window structure. Thus is born the window | |
| 449 * mirror. | |
| 450 * | |
| 451 * It also becomes a convenient place to stick scrollbar instances | |
| 452 * since they extrapolate out to having the same problem described for | |
| 453 * the display structures. | |
| 454 */ | |
| 455 | |
| 617 | 456 /* NOTE: The window-mirror structure formerly was not a Lisp object, and |
| 457 marking was handled specially. I've gotten recurring crashes, however, | |
| 458 using the mouse wheel under Windows, where either the window mirror | |
| 459 accessed through a scrollbar instance, or the frame pointed to by that | |
| 460 window mirror, gets garbaged. Things are tricky under windows because | |
| 461 the scrollbar instances are stored in HWND-specific data. Furthermore, | |
| 462 we have scrollbar-instance caches to complicate things. Both of these | |
| 463 make it very difficult (for me at least, not being intimately familiar | |
| 464 with the redisplay code) to track exactly when and where a particular | |
| 465 window mirror or scrollbar instance has pointers to it, or whether a | |
| 466 window mirror might have a dead frame or buffer in it (i.e. not | |
| 467 necessarily gc-protected by being on a global list). By far the safest | |
| 468 thing, then, is to make both structures Lisp objects and not explicitly | |
| 469 xfree() them. This should make no practical difference in memory usage | |
| 470 because neither structure is created very often (only when windows are | |
| 471 created or deleted). --ben */ | |
| 472 | |
| 1204 | 473 static const struct memory_description window_mirror_description [] = { |
| 474 { XD_LISP_OBJECT, offsetof (struct window_mirror, frame) }, | |
| 475 { XD_LISP_OBJECT, offsetof (struct window_mirror, next) }, | |
| 476 { XD_LISP_OBJECT, offsetof (struct window_mirror, hchild) }, | |
| 477 { XD_LISP_OBJECT, offsetof (struct window_mirror, vchild) }, | |
| 478 | |
| 2367 | 479 { XD_BLOCK_PTR, offsetof (struct window_mirror, current_display_lines), |
| 2551 | 480 1, { &display_line_dynarr_description } }, |
| 2367 | 481 { XD_BLOCK_PTR, offsetof (struct window_mirror, desired_display_lines), |
| 2551 | 482 1, { &display_line_dynarr_description } }, |
| 1204 | 483 |
| 484 { XD_LISP_OBJECT, offsetof (struct window_mirror, buffer) }, | |
| 485 | |
| 486 #ifdef HAVE_SCROLLBARS | |
| 487 { XD_LISP_OBJECT, offsetof (struct window_mirror, | |
| 488 scrollbar_vertical_instance) }, | |
| 489 { XD_LISP_OBJECT, offsetof (struct window_mirror, | |
| 490 scrollbar_horizontal_instance) }, | |
| 491 #endif /* HAVE_SCROLLBARS */ | |
| 492 | |
| 934 | 493 { XD_END } |
| 494 }; | |
| 495 | |
| 617 | 496 static Lisp_Object |
| 497 mark_window_mirror (Lisp_Object obj) | |
| 498 { | |
| 499 struct window_mirror *mir = XWINDOW_MIRROR (obj); | |
| 500 | |
| 501 if (mir->current_display_lines) | |
| 502 mark_redisplay_structs (mir->current_display_lines); | |
| 503 if (mir->desired_display_lines) | |
| 504 mark_redisplay_structs (mir->desired_display_lines); | |
| 505 | |
| 506 if (mir->hchild) | |
| 507 mark_object (wrap_window_mirror (mir->hchild)); | |
| 508 if (mir->vchild) | |
| 509 mark_object (wrap_window_mirror (mir->vchild)); | |
| 510 | |
| 511 if (mir->frame) | |
| 512 mark_object (wrap_frame (mir->frame)); | |
| 513 if (mir->buffer) | |
| 514 mark_object (wrap_buffer (mir->buffer)); | |
| 515 | |
| 516 #ifdef HAVE_SCROLLBARS | |
| 517 if (mir->scrollbar_vertical_instance) | |
| 518 mark_object (wrap_scrollbar_instance (mir->scrollbar_vertical_instance)); | |
| 519 if (mir->scrollbar_horizontal_instance) | |
| 520 mark_object (wrap_scrollbar_instance (mir->scrollbar_horizontal_instance)); | |
| 521 #endif /* HAVE_SCROLLBARS */ | |
| 522 if (mir->next) | |
| 523 return wrap_window_mirror (mir->next); | |
| 524 else | |
| 525 return Qnil; | |
| 526 } | |
| 527 | |
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528 DEFINE_NODUMP_INTERNAL_LISP_OBJECT ("window-mirror", window_mirror, |
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529 mark_window_mirror, |
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530 window_mirror_description, |
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531 struct window_mirror); |
| 617 | 532 |
| 428 | 533 /* Create a new window mirror structure and associated redisplay |
| 534 structs. */ | |
| 535 static struct window_mirror * | |
| 536 new_window_mirror (struct frame *f) | |
| 537 { | |
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538 Lisp_Object obj = ALLOC_NORMAL_LISP_OBJECT (window_mirror); |
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539 struct window_mirror *t = XWINDOW_MIRROR (obj); |
| 428 | 540 |
| 541 t->frame = f; | |
| 542 t->current_display_lines = Dynarr_new (display_line); | |
| 543 t->desired_display_lines = Dynarr_new (display_line); | |
| 544 | |
| 545 return t; | |
| 546 } | |
| 547 | |
| 548 /* Synchronize the mirror structure with a given window structure. | |
| 549 This is normally called from update_frame_window_mirror with a | |
| 550 starting window of f->root_window. */ | |
| 551 static struct window_mirror * | |
| 552 update_mirror_internal (Lisp_Object win, struct window_mirror *mir) | |
| 553 { | |
| 554 if (NILP (win)) | |
| 555 { | |
| 556 if (mir) | |
| 557 { | |
| 558 free_window_mirror (mir); | |
| 559 mir = NULL; | |
| 560 } | |
| 561 return mir; | |
| 562 } | |
| 563 else | |
| 564 if (!mir) | |
| 565 mir = new_window_mirror (XFRAME (XWINDOW (win)->frame)); | |
| 566 | |
| 1204 | 567 mir->next = update_mirror_internal (XWINDOW (win)->next, mir->next); |
| 428 | 568 mir->hchild = update_mirror_internal (XWINDOW (win)->hchild, mir->hchild); |
| 569 mir->vchild = update_mirror_internal (XWINDOW (win)->vchild, mir->vchild); | |
| 570 | |
| 571 /* | |
| 572 * If the redisplay structs are not empty and the mirror has | |
| 573 * children, then this mirror structure was formerly being used for | |
| 574 * display but is no longer. Reset its current display structs so | |
| 575 * that redisplay doesn't accidentally think they are accurate if it | |
| 576 * is later used for display purposes once again. Also, mark the | |
| 577 * scrollbar instance as not active. | |
| 578 */ | |
| 579 if (mir->vchild || mir->hchild) | |
| 580 { | |
| 581 /* The redisplay structures are big. Leaving them around in | |
| 582 non-leaf windows can add up to a lot of wasted space. So | |
| 583 don't do it. */ | |
| 584 free_display_structs (mir); | |
| 585 mir->current_display_lines = Dynarr_new (display_line); | |
| 586 mir->desired_display_lines = Dynarr_new (display_line); | |
| 587 | |
| 588 #ifdef HAVE_SCROLLBARS | |
| 589 update_window_scrollbars (XWINDOW (win), mir, 0, 0); | |
| 590 #endif | |
| 591 mir->buffer = NULL; | |
| 592 } | |
| 593 | |
| 594 return mir; | |
| 595 } | |
| 596 | |
| 597 /* Given a window mirror, determine which real window it contains the | |
| 598 redisplay structures for. */ | |
| 599 static Lisp_Object | |
| 600 real_window_internal (Lisp_Object win, struct window_mirror *rmir, | |
| 601 struct window_mirror *mir) | |
| 602 { | |
| 603 for (; !NILP (win) && rmir ; win = XWINDOW (win)->next, rmir = rmir->next) | |
| 604 { | |
| 605 if (mir == rmir) | |
| 606 return win; | |
| 607 if (!NILP (XWINDOW (win)->vchild)) | |
| 608 { | |
| 609 Lisp_Object retval = | |
| 610 real_window_internal (XWINDOW (win)->vchild, rmir->vchild, mir); | |
| 611 if (!NILP (retval)) | |
| 612 return retval; | |
| 613 } | |
| 614 if (!NILP (XWINDOW (win)->hchild)) | |
| 615 { | |
| 616 Lisp_Object retval = | |
| 617 real_window_internal (XWINDOW (win)->hchild, rmir->hchild, mir); | |
| 618 if (!NILP (retval)) | |
| 619 return retval; | |
| 620 } | |
| 621 } | |
| 622 | |
| 623 return Qnil; | |
| 624 } | |
| 625 | |
| 626 /* Given a real window, find the mirror structure which contains its | |
| 627 redisplay structures. */ | |
| 628 static struct window_mirror * | |
| 629 find_window_mirror_internal (Lisp_Object win, struct window_mirror *rmir, | |
| 630 struct window *w) | |
| 631 { | |
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632 for (; !NILP (win) && rmir; win = XWINDOW (win)->next, rmir = rmir->next) |
| 428 | 633 { |
| 634 if (w == XWINDOW (win)) | |
| 635 return rmir; | |
| 636 | |
| 637 if (!NILP (XWINDOW (win)->vchild)) | |
| 638 { | |
| 639 struct window_mirror *retval = | |
| 640 find_window_mirror_internal (XWINDOW (win)->vchild, | |
| 641 rmir->vchild, w); | |
| 642 if (retval) return retval; | |
| 643 } | |
| 644 | |
| 645 if (!NILP (XWINDOW (win)->hchild)) | |
| 646 { | |
| 647 struct window_mirror *retval = | |
| 648 find_window_mirror_internal (XWINDOW (win)->hchild, | |
| 649 rmir->hchild, w); | |
| 650 if (retval) return retval; | |
| 651 } | |
| 652 } | |
| 653 | |
| 654 return 0; | |
| 655 } | |
| 656 | |
| 657 /* Update the mirror structure for the given frame. */ | |
| 658 void | |
| 659 update_frame_window_mirror (struct frame *f) | |
| 660 { | |
| 617 | 661 f->root_mirror = |
| 662 wrap_window_mirror (update_mirror_internal | |
| 663 (f->root_window, | |
| 664 NILP (f->root_mirror) ? 0 : | |
| 665 XWINDOW_MIRROR (f->root_mirror))); | |
| 428 | 666 f->mirror_dirty = 0; |
| 667 } | |
| 668 | |
| 669 /* Free a given mirror structure along with all of its children as | |
| 670 well as their associated display structures. */ | |
| 671 void | |
| 672 free_window_mirror (struct window_mirror *mir) | |
| 673 { | |
| 674 while (mir) | |
| 675 { | |
| 676 if (mir->hchild) free_window_mirror (mir->hchild); | |
| 677 if (mir->vchild) free_window_mirror (mir->vchild); | |
| 678 #ifdef HAVE_SCROLLBARS | |
| 679 release_window_mirror_scrollbars (mir); | |
| 680 #endif | |
| 681 free_display_structs (mir); | |
| 682 mir = mir->next; | |
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683 /* not worth calling free_normal_lisp_object() -- window mirrors |
| 617 | 684 are not created that frequently and it's dangerous. we don't |
| 685 know for sure that there aren't other pointers around -- e.g. | |
| 686 in a scrollbar instance. */ | |
| 428 | 687 } |
| 688 } | |
| 689 | |
| 690 /* Given a mirror structure, return the window it mirrors. Calls | |
| 691 real_window_internal to do most of the work. */ | |
| 692 Lisp_Object | |
| 693 real_window (struct window_mirror *mir, int no_abort) | |
| 694 { | |
| 617 | 695 Lisp_Object retval = |
| 696 real_window_internal (mir->frame->root_window, | |
| 697 XWINDOW_MIRROR (mir->frame->root_mirror), mir); | |
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698 assert (!NILP (retval) || no_abort); |
| 428 | 699 |
| 700 return retval; | |
| 701 } | |
| 702 | |
| 703 /* Given a real window, return its mirror structure. Calls | |
| 704 find_window_mirror_internal to do all of the work. */ | |
| 705 struct window_mirror * | |
| 706 find_window_mirror (struct window *w) | |
| 707 { | |
| 708 struct frame *f = XFRAME (w->frame); | |
| 709 if (f->mirror_dirty) | |
| 710 update_frame_window_mirror (f); | |
| 617 | 711 return find_window_mirror_internal (f->root_window, |
| 712 XWINDOW_MIRROR (f->root_mirror), w); | |
| 428 | 713 } |
| 714 | |
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715 /* Given a real window, return its mirror structure, if it exists. |
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716 Don't do any updating. */ |
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717 static struct window_mirror * |
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718 find_window_mirror_maybe (struct window *w) |
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719 { |
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720 struct frame *f = XFRAME (w->frame); |
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721 if (!WINDOW_MIRRORP (f->root_mirror)) |
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722 return 0; |
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723 return find_window_mirror_internal (f->root_window, |
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724 XWINDOW_MIRROR (f->root_mirror), w); |
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725 } |
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726 |
| 428 | 727 /***************************************************************************** |
| 728 find_window_by_pixel_pos | |
| 729 | |
| 730 Given a pixel position relative to a frame, find the window at that | |
| 731 position. | |
| 732 ****************************************************************************/ | |
| 733 struct window * | |
| 734 find_window_by_pixel_pos (int pix_x, int pix_y, Lisp_Object win) | |
| 735 { | |
| 736 if (NILP (win)) | |
| 737 return 0; | |
| 738 | |
| 739 for (; !NILP (win); win = XWINDOW (win)->next) | |
| 740 { | |
| 741 struct window *w; | |
| 742 | |
| 743 if (!NILP (XWINDOW (win)->vchild)) | |
| 744 { | |
| 745 w = find_window_by_pixel_pos (pix_x, pix_y, XWINDOW (win)->vchild); | |
| 746 if (w) return w; | |
| 747 } | |
| 748 if (!NILP (XWINDOW (win)->hchild)) | |
| 749 { | |
| 750 w = find_window_by_pixel_pos (pix_x, pix_y, XWINDOW (win)->hchild); | |
| 751 if (w) return w; | |
| 752 } | |
| 753 w = XWINDOW (win); | |
| 754 if (pix_x >= WINDOW_LEFT (w) | |
| 755 && pix_x <= WINDOW_RIGHT (w) | |
| 756 && pix_y >= WINDOW_TOP (w) | |
| 757 && pix_y <= WINDOW_BOTTOM (w)) | |
| 758 return w; | |
| 759 } | |
| 760 return NULL; | |
| 761 } | |
| 762 | |
| 763 /* Return a pointer to the display structures for the given window. */ | |
| 764 display_line_dynarr * | |
| 765 window_display_lines (struct window *w, int which) | |
| 766 { | |
| 767 struct window_mirror *t; | |
| 768 | |
| 769 t = find_window_mirror (w); | |
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770 assert (t); |
| 428 | 771 |
| 772 if (which == CURRENT_DISP) | |
| 773 return t->current_display_lines; | |
| 774 else if (which == DESIRED_DISP) | |
| 775 return t->desired_display_lines; | |
| 776 else if (which == CMOTION_DISP) | |
| 777 /* The CMOTION_DISP display lines are global. */ | |
| 778 return cmotion_display_lines; | |
| 779 else | |
| 2500 | 780 ABORT (); |
| 428 | 781 |
| 782 return 0; /* shut up compiler */ | |
| 783 } | |
| 784 | |
| 785 struct buffer * | |
| 786 window_display_buffer (struct window *w) | |
| 787 { | |
| 788 struct window_mirror *t; | |
| 789 | |
| 790 t = find_window_mirror (w); | |
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791 assert (t); |
| 428 | 792 |
| 793 return t->buffer; | |
| 794 } | |
| 795 | |
| 796 void | |
| 797 set_window_display_buffer (struct window *w, struct buffer *b) | |
| 798 { | |
| 799 struct window_mirror *t; | |
| 800 | |
| 801 t = find_window_mirror (w); | |
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802 assert (t); |
| 428 | 803 |
| 804 t->buffer = b; | |
| 805 } | |
| 806 | |
| 807 | |
| 808 /* Determining a window's position based solely on its pixel | |
| 809 positioning doesn't work. Instead, we do it the intelligent way, | |
| 810 by checking its positioning in the window hierarchy. */ | |
| 811 int | |
| 812 window_is_leftmost (struct window *w) | |
| 813 { | |
| 814 Lisp_Object parent, current_ancestor, window; | |
| 815 | |
| 793 | 816 window = wrap_window (w); |
| 428 | 817 |
| 818 parent = XWINDOW (window)->parent; | |
| 819 current_ancestor = window; | |
| 820 | |
| 821 while (!NILP (parent)) | |
| 822 { | |
| 823 if (!NILP (XWINDOW (parent)->hchild) && | |
| 824 !EQ (XWINDOW (parent)->hchild, current_ancestor)) | |
| 825 return 0; | |
| 826 | |
| 827 current_ancestor = parent; | |
| 828 parent = XWINDOW (parent)->parent; | |
| 829 } | |
| 830 | |
| 831 return 1; | |
| 832 } | |
| 833 | |
| 834 int | |
| 835 window_is_rightmost (struct window *w) | |
| 836 { | |
| 837 Lisp_Object parent, current_ancestor, window; | |
| 838 | |
| 793 | 839 window = wrap_window (w); |
| 428 | 840 |
| 841 parent = XWINDOW (window)->parent; | |
| 842 current_ancestor = window; | |
| 843 | |
| 844 while (!NILP (parent)) | |
| 845 { | |
| 846 if (!NILP (XWINDOW (parent)->hchild) | |
| 847 && !NILP (XWINDOW (current_ancestor)->next)) | |
| 848 return 0; | |
| 849 | |
| 850 current_ancestor = parent; | |
| 851 parent = XWINDOW (parent)->parent; | |
| 852 } | |
| 853 | |
| 854 return 1; | |
| 855 } | |
| 856 | |
| 857 static int | |
| 858 window_full_width_p (struct window *w) | |
| 859 { | |
| 860 return window_is_leftmost (w) && window_is_rightmost (w); | |
| 861 } | |
| 862 | |
| 863 int | |
| 864 window_is_highest (struct window *w) | |
| 865 { | |
| 866 Lisp_Object parent, current_ancestor, window; | |
| 867 | |
| 793 | 868 window = wrap_window (w); |
| 428 | 869 |
| 870 parent = XWINDOW (window)->parent; | |
| 871 current_ancestor = window; | |
| 872 | |
| 873 while (!NILP (parent)) | |
| 874 { | |
| 875 if (!NILP (XWINDOW (parent)->vchild) && | |
| 876 !EQ (XWINDOW (parent)->vchild, current_ancestor)) | |
| 877 return 0; | |
| 878 | |
| 879 current_ancestor = parent; | |
| 880 parent = XWINDOW (parent)->parent; | |
| 881 } | |
| 882 | |
| 883 /* This is really to catch the minibuffer but we make it generic in | |
| 884 case we ever change things around to let the minibuffer be on top. */ | |
| 885 if (NILP (XWINDOW (current_ancestor)->prev)) | |
| 886 return 1; | |
| 887 else | |
| 888 return 0; | |
| 889 } | |
| 890 | |
| 891 int | |
| 892 window_is_lowest (struct window *w) | |
| 893 { | |
| 894 Lisp_Object parent, current_ancestor, window; | |
| 895 | |
| 793 | 896 window = wrap_window (w); |
| 428 | 897 |
| 898 parent = XWINDOW (window)->parent; | |
| 899 current_ancestor = window; | |
| 900 | |
| 901 while (!NILP (parent)) | |
| 902 { | |
| 903 if (!NILP (XWINDOW (parent)->vchild) | |
| 904 && !NILP (XWINDOW (current_ancestor)->next)) | |
| 905 return 0; | |
| 906 | |
| 907 current_ancestor = parent; | |
| 908 parent = XWINDOW (parent)->parent; | |
| 909 } | |
| 910 | |
| 911 return 1; | |
| 912 } | |
| 913 | |
| 914 #if 0 /* not currently used */ | |
| 915 | |
| 916 static int | |
| 917 window_full_height_p (struct window *w) | |
| 918 { | |
| 919 return window_is_highest (w) && window_is_lowest (w); | |
| 920 } | |
| 921 | |
| 922 #endif | |
| 923 | |
| 924 int | |
| 925 window_truncation_on (struct window *w) | |
| 926 { | |
| 927 /* Minibuffer windows are never truncated. | |
| 440 | 928 #### is this the right way ? */ |
| 428 | 929 if (MINI_WINDOW_P (w)) |
| 930 return 0; | |
| 931 | |
| 932 /* Horizontally scrolled windows are truncated. */ | |
| 933 if (w->hscroll) | |
| 934 return 1; | |
| 935 | |
| 936 /* If truncate_partial_width_windows is true and the window is not | |
| 937 the full width of the frame it is truncated. */ | |
| 707 | 938 if (!NILP (symbol_value_in_buffer (Qtruncate_partial_width_windows, |
| 939 w->buffer)) | |
| 428 | 940 && !(window_is_leftmost (w) && window_is_rightmost (w))) |
| 941 return 1; | |
| 942 | |
| 943 /* If the window's buffer's value of truncate_lines is non-nil, then | |
| 944 the window is truncated. */ | |
| 945 if (!NILP (XBUFFER (w->buffer)->truncate_lines)) | |
| 946 return 1; | |
| 947 | |
| 948 return 0; | |
| 949 } | |
| 950 | |
| 951 DEFUN ("window-truncated-p", Fwindow_truncated_p, 0, 1, 0, /* | |
| 442 | 952 Returns non-nil if text in the window is truncated. |
| 428 | 953 */ |
| 954 (window)) | |
| 955 { | |
| 956 struct window *w = decode_window (window); | |
| 957 | |
| 958 return window_truncation_on (w) ? Qt : Qnil; | |
| 959 } | |
| 960 | |
| 961 | |
| 962 static int | |
| 963 have_undivided_common_edge (struct window *w_right, void *closure) | |
| 964 { | |
| 965 struct window *w_left = (struct window *) closure; | |
| 966 return (WINDOW_RIGHT (w_left) == WINDOW_LEFT (w_right) | |
| 967 && WINDOW_TOP (w_left) < WINDOW_BOTTOM (w_right) | |
| 968 && WINDOW_TOP (w_right) < WINDOW_BOTTOM (w_left) | |
| 969 #ifdef HAVE_SCROLLBARS | |
| 970 && (NILP (w_right->scrollbar_on_left_p) | |
| 971 || NILP (w_right->vertical_scrollbar_visible_p) | |
| 972 || ZEROP (w_right->scrollbar_width)) | |
| 973 #endif | |
| 974 ); | |
| 975 } | |
| 976 | |
| 977 static int | |
| 978 window_needs_vertical_divider_1 (struct window *w) | |
| 979 { | |
| 980 /* Never if we're on the right */ | |
| 981 if (window_is_rightmost (w)) | |
| 982 return 0; | |
| 983 | |
| 984 /* Always if draggable */ | |
| 985 if (!NILP (w->vertical_divider_always_visible_p)) | |
| 986 return 1; | |
| 987 | |
| 988 #ifdef HAVE_SCROLLBARS | |
| 989 /* Our right scrollbar is enough to separate us at the right */ | |
| 990 if (NILP (w->scrollbar_on_left_p) | |
| 991 && !NILP (w->vertical_scrollbar_visible_p) | |
| 992 && !ZEROP (w->scrollbar_width)) | |
| 993 return 0; | |
| 994 #endif | |
| 995 | |
| 996 /* Ok. to determine whether we need a divider on the left, we must | |
| 997 check that our right neighbor windows have scrollbars on their | |
| 998 left sides. We must check all such windows which have common | |
| 999 left edge with our window's right edge. */ | |
| 1000 return map_windows (XFRAME (WINDOW_FRAME (w)), | |
| 1001 have_undivided_common_edge, (void*)w); | |
| 1002 } | |
| 1003 | |
| 1004 int | |
| 1005 window_needs_vertical_divider (struct window *w) | |
| 1006 { | |
| 1007 if (!w->need_vertical_divider_valid_p) | |
| 1008 { | |
| 1009 w->need_vertical_divider_p = | |
| 1010 window_needs_vertical_divider_1 (w); | |
| 1011 w->need_vertical_divider_valid_p = 1; | |
| 1012 } | |
| 1013 return w->need_vertical_divider_p; | |
| 1014 } | |
| 1015 | |
| 1016 /* Called from invalidate_vertical_divider_cache_in_frame */ | |
| 1017 int | |
| 1018 invalidate_vertical_divider_cache_in_window (struct window *w, | |
| 2286 | 1019 void *UNUSED (unused)) |
| 428 | 1020 { |
| 1021 w->need_vertical_divider_valid_p = 0; | |
| 1022 return 0; | |
| 1023 } | |
| 1024 | |
| 1025 /* Calculate width of vertical divider, including its shadows | |
| 1026 and spacing. The returned value is effectively the distance | |
| 1027 between adjacent window edges. This function does not check | |
| 1028 whether a window needs a vertical divider, so the returned | |
| 1029 value is a "theoretical" one */ | |
| 1030 int | |
| 1031 window_divider_width (struct window *w) | |
| 1032 { | |
| 1033 /* the shadow thickness can be negative. This means that the divider | |
| 1034 will have a depressed look */ | |
| 1035 | |
| 1036 if (FRAME_WIN_P (XFRAME (WINDOW_FRAME (w)))) | |
| 1037 return | |
|
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|
1038 XFIXNUM (w->vertical_divider_line_width) |
|
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changeset
|
1039 + 2 * XFIXNUM (w->vertical_divider_spacing) |
|
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1040 + 2 * abs (XFIXNUM (w->vertical_divider_shadow_thickness)); |
| 428 | 1041 else |
|
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1042 return XFIXNUM (w->vertical_divider_line_width) == 0 ? 0 : 1; |
| 428 | 1043 } |
| 1044 | |
| 1045 int | |
| 4932 | 1046 window_scrollbar_width (struct window * USED_IF_SCROLLBARS (w)) |
| 428 | 1047 { |
| 1048 #ifdef HAVE_SCROLLBARS | |
| 1049 if (!WINDOW_WIN_P (w) | |
| 1050 || MINI_WINDOW_P (w) | |
| 1051 || NILP (w->buffer) | |
| 1052 || NILP (w->vertical_scrollbar_visible_p)) | |
| 1053 /* #### when does NILP (w->buffer) happen? */ | |
| 1054 return 0; | |
| 1055 | |
|
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1056 return XFIXNUM (w->scrollbar_width); |
| 428 | 1057 #else |
| 1058 return 0; | |
| 1059 #endif /* HAVE_SCROLLBARS */ | |
| 1060 } | |
| 1061 | |
| 1062 /* Horizontal scrollbars are only active on windows with truncation | |
| 1063 turned on. */ | |
| 1064 int | |
| 4932 | 1065 window_scrollbar_height (struct window * USED_IF_SCROLLBARS (w)) |
| 428 | 1066 { |
| 1067 #ifdef HAVE_SCROLLBARS | |
| 1068 if (!WINDOW_WIN_P (w) | |
| 1069 || MINI_WINDOW_P (w) | |
| 1070 || NILP (w->buffer) | |
| 1071 || NILP (w->horizontal_scrollbar_visible_p) | |
| 1072 || !window_truncation_on (w)) | |
| 1073 return 0; | |
| 1074 | |
|
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|
1075 return XFIXNUM (w->scrollbar_height); |
| 428 | 1076 #else |
| 1077 return 0; | |
| 1078 #endif /* HAVE_SCROLLBARS */ | |
| 1079 } | |
| 1080 | |
| 1081 int | |
| 1082 window_modeline_height (struct window *w) | |
| 1083 { | |
| 1084 struct frame *f = XFRAME (w->frame); | |
| 1085 int modeline_height; | |
| 1086 | |
| 1087 if (MINI_WINDOW_P (w) || NILP (w->buffer)) | |
| 1088 { | |
| 1089 modeline_height = 0; | |
| 1090 } | |
| 1091 else if (!WINDOW_HAS_MODELINE_P (w)) | |
| 1092 { | |
| 1093 if (window_scrollbar_height (w)) | |
| 1094 modeline_height = 0; | |
| 1095 else | |
| 1096 { | |
| 1097 modeline_height = FRAMEMETH (f, divider_height, ()); | |
| 1098 | |
| 1099 if (!EQ (Qzero, w->modeline_shadow_thickness) && FRAME_WIN_P (f)) | |
| 1100 modeline_height += (2 * MODELINE_SHADOW_THICKNESS (w)); | |
| 1101 } | |
| 1102 } | |
| 1103 else | |
| 1104 { | |
| 1105 if (noninteractive) | |
| 1106 modeline_height = 0; | |
| 1107 else | |
| 1108 { | |
| 1109 display_line_dynarr *dla; | |
| 1110 | |
| 1111 /* We don't force a regeneration of the modeline here. | |
| 1112 Instead it is now a precondition that any function calling | |
| 1113 this should make sure that one of these structures is | |
| 1114 up-to-date. In practice this only affects two internal | |
| 1115 redisplay functions, regenerate_window and | |
| 1116 regenerate_window_point_center. */ | |
| 1117 /* We check DESIRED_DISP because if it is valid it is more | |
| 1118 up-to-date than CURRENT_DISP. For calls to this outside | |
| 1119 of redisplay it doesn't matter which structure we check | |
| 1120 since there is a redisplay condition that these | |
| 1121 structures be identical outside of redisplay. */ | |
| 1122 dla = window_display_lines (w, DESIRED_DISP); | |
| 4967 | 1123 if (dla && Dynarr_length (dla) && Dynarr_begin (dla)->modeline) |
| 1124 modeline_height = (Dynarr_begin (dla)->ascent + | |
| 1125 Dynarr_begin (dla)->descent); | |
| 428 | 1126 else |
| 1127 { | |
| 1128 dla = window_display_lines (w, CURRENT_DISP); | |
| 4967 | 1129 if (dla && Dynarr_length (dla) && Dynarr_begin (dla)->modeline) |
| 1130 modeline_height = (Dynarr_begin (dla)->ascent + | |
| 1131 Dynarr_begin (dla)->descent); | |
| 428 | 1132 else |
| 1133 /* This should be an abort except I'm not yet 100% | |
| 1134 confident that it won't ever get hit (though I | |
| 1135 haven't been able to trigger it). It is extremely | |
| 1136 unlikely to cause any noticeable problem and even if | |
| 1137 it does it will be a minor display glitch. */ | |
| 1138 /* #### Bullshit alert. It does get hit and it causes | |
| 1139 noticeable glitches. real_current_modeline_height | |
| 1140 is a kludge to fix this for 19.14. */ | |
| 1141 modeline_height = real_current_modeline_height (w); | |
| 1142 } | |
| 1143 | |
| 1144 if (!EQ (Qzero, w->modeline_shadow_thickness) && FRAME_WIN_P (f)) | |
| 1145 modeline_height += (2 * MODELINE_SHADOW_THICKNESS (w)); | |
| 1146 } | |
| 1147 } | |
| 1148 | |
| 1149 return modeline_height; | |
| 1150 } | |
| 1151 | |
| 1152 /***************************************************************************** | |
| 1153 margin_width_internal | |
| 1154 | |
| 1155 For a given window, return the width in pixels of the specified margin. | |
| 1156 ****************************************************************************/ | |
| 1157 static int | |
| 1158 margin_width_internal (struct window *w, int left_margin) | |
| 1159 { | |
| 1160 int window_cwidth = window_char_width (w, 1); | |
| 1161 int margin_cwidth; | |
| 1162 int font_width; | |
| 1163 Lisp_Object window; | |
| 1164 | |
| 1165 /* We might be getting called on a non-leaf. */ | |
| 1166 if (NILP (w->buffer)) | |
| 1167 return 0; | |
| 1168 | |
| 1169 /* The minibuffer never has margins. */ | |
| 1170 if (MINI_WINDOW_P (w)) | |
| 1171 return 0; | |
| 1172 | |
| 793 | 1173 window = wrap_window (w); |
|
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|
1174 margin_cwidth = (left_margin ? XFIXNUM (w->left_margin_width) : |
|
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|
1175 XFIXNUM (w->right_margin_width)); |
| 428 | 1176 |
|
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1177 default_face_width_and_height (window, &font_width, 0); |
| 428 | 1178 |
| 1179 /* The left margin takes precedence over the right margin so we | |
| 1180 subtract its width from the space available for the right | |
| 1181 margin. */ | |
| 1182 if (!left_margin) | |
|
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1183 window_cwidth -= XFIXNUM (w->left_margin_width); |
| 428 | 1184 |
| 1185 /* The margin cannot be wider than the window is. We allow the | |
| 1186 value to be bigger since it is possible for the user to enlarge | |
| 1187 the window such that the left margin value would no longer be too | |
| 1188 big, but we won't return a value that is larger. */ | |
| 1189 if (margin_cwidth > window_cwidth) | |
| 1190 margin_cwidth = window_cwidth; | |
| 1191 | |
| 1192 /* At the user level the margin is always specified in characters. | |
| 1193 Internally however it is manipulated in terms of pixels. */ | |
| 1194 return margin_cwidth * font_width; | |
| 1195 } | |
| 1196 | |
| 1197 int | |
| 1198 window_left_margin_width (struct window *w) | |
| 1199 { | |
| 1200 return margin_width_internal (w, 1); | |
| 1201 } | |
| 1202 | |
| 1203 int | |
| 1204 window_right_margin_width (struct window *w) | |
| 1205 { | |
| 1206 return margin_width_internal (w, 0); | |
| 1207 } | |
| 1208 | |
| 1209 /***************************************************************************** | |
| 1210 Window Gutters | |
| 1211 | |
| 1212 The gutters of a window are those areas in the boundary defined by | |
| 1213 w->pixel_top, w->pixel_left, w->pixel_height and w->pixel_width which | |
| 1214 do not contain text. Items which may be in the gutters include | |
| 1215 scrollbars, toolbars and modelines. The margin areas are not | |
| 1216 included. This is an exception made because redisplay special cases | |
| 1217 the handling of those areas in many places in such a way that | |
| 1218 including them in the gutter area would make life difficult. | |
| 1219 | |
| 1220 The size functions refer to height for the bottom and top gutters and | |
| 1221 width for the left and right gutters. The starting position | |
| 1222 functions refer to the Y coord for bottom and top gutters and the X | |
| 1223 coord for left and right gutters. All starting positions are | |
| 1224 relative to the frame, not the window. | |
| 1225 ****************************************************************************/ | |
| 1226 | |
| 442 | 1227 static int |
| 1228 window_top_window_gutter_height (struct window *w) | |
| 1229 { | |
| 428 | 1230 if (!NILP (w->hchild) || !NILP (w->vchild)) |
| 1231 return 0; | |
| 1232 | |
| 1233 #ifdef HAVE_SCROLLBARS | |
| 1234 if (!NILP (w->scrollbar_on_top_p)) | |
| 442 | 1235 return window_scrollbar_height (w); |
| 428 | 1236 else |
| 1237 #endif | |
| 442 | 1238 return 0; |
| 428 | 1239 } |
| 1240 | |
| 1241 int | |
| 442 | 1242 window_top_gutter_height (struct window *w) |
| 1243 { | |
| 1244 return window_top_window_gutter_height (w); | |
| 1245 } | |
| 1246 | |
| 1247 static int | |
| 1248 window_bottom_window_gutter_height (struct window *w) | |
| 1249 { | |
| 1250 int gutter; | |
| 428 | 1251 |
| 1252 if (!NILP (w->hchild) || !NILP (w->vchild)) | |
| 1253 return 0; | |
| 1254 | |
| 442 | 1255 gutter = window_modeline_height (w); |
| 428 | 1256 |
| 1257 #ifdef HAVE_SCROLLBARS | |
| 1258 if (NILP (w->scrollbar_on_top_p)) | |
| 1259 return window_scrollbar_height (w) + gutter; | |
| 1260 else | |
| 1261 #endif | |
| 1262 return gutter; | |
| 1263 } | |
| 1264 | |
| 1265 int | |
| 442 | 1266 window_bottom_gutter_height (struct window *w) |
| 1267 { | |
| 1268 return window_bottom_window_gutter_height (w); | |
| 1269 } | |
| 1270 | |
| 1271 static int | |
| 4932 | 1272 window_left_window_gutter_width (struct window *w, |
| 1273 int USED_IF_SCROLLBARS (modeline)) | |
| 442 | 1274 { |
| 428 | 1275 if (!NILP (w->hchild) || !NILP (w->vchild)) |
| 1276 return 0; | |
| 1277 | |
| 1278 #ifdef HAVE_SCROLLBARS | |
| 1279 if (!modeline && !NILP (w->scrollbar_on_left_p)) | |
| 442 | 1280 return window_scrollbar_width (w); |
| 428 | 1281 #endif |
| 1282 | |
| 442 | 1283 return 0; |
| 428 | 1284 } |
| 1285 | |
| 1286 int | |
| 442 | 1287 window_left_gutter_width (struct window *w, int modeline) |
| 1288 { | |
| 1289 return window_left_window_gutter_width (w, modeline); | |
| 1290 } | |
| 1291 | |
| 1292 static int | |
| 4932 | 1293 window_right_window_gutter_width (struct window *w, |
| 1294 int USED_IF_SCROLLBARS (modeline)) | |
| 442 | 1295 { |
| 1296 int gutter = 0; | |
| 428 | 1297 |
| 1298 if (!NILP (w->hchild) || !NILP (w->vchild)) | |
| 1299 return 0; | |
| 1300 | |
| 1301 #ifdef HAVE_SCROLLBARS | |
| 1302 if (!modeline && NILP (w->scrollbar_on_left_p)) | |
| 1303 gutter += window_scrollbar_width (w); | |
| 1304 #endif | |
| 1305 | |
| 1306 if (window_needs_vertical_divider (w)) | |
| 1307 gutter += window_divider_width (w); | |
| 1308 | |
| 1309 return gutter; | |
| 1310 } | |
| 1311 | |
| 442 | 1312 int |
| 1313 window_right_gutter_width (struct window *w, int modeline) | |
| 1314 { | |
| 1315 return window_right_window_gutter_width (w, modeline); | |
| 1316 } | |
| 1317 | |
| 1318 static int | |
| 1319 window_pixel_height (struct window* w) | |
| 1320 { | |
| 1321 return WINDOW_HEIGHT (w); | |
| 1322 } | |
| 1323 | |
| 428 | 1324 |
| 1325 DEFUN ("windowp", Fwindowp, 1, 1, 0, /* | |
| 444 | 1326 Return t if OBJECT is a window. |
| 428 | 1327 */ |
| 444 | 1328 (object)) |
| 1329 { | |
| 1330 return WINDOWP (object) ? Qt : Qnil; | |
| 428 | 1331 } |
| 1332 | |
| 1333 DEFUN ("window-live-p", Fwindow_live_p, 1, 1, 0, /* | |
| 444 | 1334 Return t if OBJECT is a window which is currently visible. |
| 428 | 1335 */ |
| 444 | 1336 (object)) |
| 1337 { | |
| 1338 return WINDOWP (object) && WINDOW_LIVE_P (XWINDOW (object)) | |
| 1339 ? Qt : Qnil; | |
| 428 | 1340 } |
| 1341 | |
| 1342 DEFUN ("selected-window", Fselected_window, 0, 1, 0, /* | |
| 1343 Return the window that the cursor now appears in and commands apply to. | |
| 1344 If the optional argument CON-DEV-OR-FRAME is specified and is a frame, return | |
| 1345 the selected window used by that frame. If CON-DEV-OR-FRAME is a device, | |
| 1346 then the selected frame on that device will be used. If CON-DEV-OR-FRAME | |
| 1347 is a console, the selected frame on that console's selected device will | |
| 1348 be used. Otherwise, the selected frame is used. | |
| 1349 */ | |
| 1350 (con_dev_or_frame)) | |
| 1351 { | |
| 1352 if (NILP (con_dev_or_frame) && NILP (Fselected_device (Qnil))) | |
| 1353 return Qnil; /* happens at startup */ | |
| 1354 | |
| 1355 { | |
| 1356 struct frame *f = decode_frame_or_selected (con_dev_or_frame); | |
| 1357 return FRAME_SELECTED_WINDOW (f); | |
| 1358 } | |
| 1359 } | |
| 1360 | |
| 1361 DEFUN ("last-nonminibuf-window", Flast_nonminibuf_window, 0, 1, 0, /* | |
| 1362 Return the last selected window that is not a minibuffer window. | |
| 1363 If the optional argument CON-DEV-OR-FRAME is specified and is a frame, | |
| 1364 return the last non-minibuffer window used by that frame. If | |
| 1365 CON-DEV-OR-FRAME is a device, then the selected frame on that device | |
| 1366 will be used. If CON-DEV-OR-FRAME is a console, the selected frame on | |
| 1367 that console's selected device will be used. Otherwise, the selected | |
| 1368 frame is used. | |
| 1369 */ | |
| 1370 (con_dev_or_frame)) | |
| 1371 { | |
| 1372 if (NILP (con_dev_or_frame) && NILP (Fselected_device (Qnil))) | |
| 1373 return Qnil; /* happens at startup */ | |
| 1374 | |
| 1375 { | |
| 1376 struct frame *f = decode_frame_or_selected (con_dev_or_frame); | |
| 1377 return FRAME_LAST_NONMINIBUF_WINDOW (f); | |
| 1378 } | |
| 1379 } | |
| 1380 | |
| 1381 DEFUN ("minibuffer-window", Fminibuffer_window, 0, 1, 0, /* | |
| 1382 Return the window used now for minibuffers. | |
| 1383 If the optional argument CON-DEV-OR-FRAME is specified and is a frame, return | |
| 1384 the minibuffer window used by that frame. If CON-DEV-OR-FRAME is a device, | |
| 1385 then the selected frame on that device will be used. If CON-DEV-OR-FRAME | |
| 1386 is a console, the selected frame on that console's selected device will | |
| 1387 be used. Otherwise, the selected frame is used. | |
| 1388 */ | |
| 1389 (con_dev_or_frame)) | |
| 1390 { | |
| 1391 return FRAME_MINIBUF_WINDOW (decode_frame_or_selected (con_dev_or_frame)); | |
| 1392 } | |
| 1393 | |
| 438 | 1394 DEFUN ("window-minibuffer-p", Fwindow_minibuffer_p, 0, 1, 0, /* |
| 428 | 1395 Return non-nil if WINDOW is a minibuffer window. |
| 1396 */ | |
| 1397 (window)) | |
| 1398 { | |
| 1399 return MINI_WINDOW_P (decode_window (window)) ? Qt : Qnil; | |
| 1400 } | |
| 1401 | |
| 1402 DEFUN ("window-first-hchild", Fwindow_first_hchild, 1, 1, 0, /* | |
| 1403 Return the first horizontal child of WINDOW, or nil. | |
| 1404 */ | |
| 1405 (window)) | |
| 1406 { | |
| 1407 return decode_window (window)->hchild; | |
| 1408 } | |
| 1409 | |
| 1410 DEFUN ("window-first-vchild", Fwindow_first_vchild, 1, 1, 0, /* | |
| 1411 Return the first vertical child of WINDOW, or nil. | |
| 1412 */ | |
| 1413 (window)) | |
| 1414 { | |
| 1415 return decode_window (window)->vchild; | |
| 1416 } | |
| 1417 | |
| 1418 DEFUN ("window-next-child", Fwindow_next_child, 1, 1, 0, /* | |
| 1419 Return the next window on the same level as WINDOW, or nil. | |
| 1420 */ | |
| 1421 (window)) | |
| 1422 { | |
| 1423 return decode_window (window)->next; | |
| 1424 } | |
| 1425 | |
| 1426 DEFUN ("window-previous-child", Fwindow_previous_child, 1, 1, 0, /* | |
| 1427 Return the previous window on the same level as WINDOW, or nil. | |
| 1428 */ | |
| 1429 (window)) | |
| 1430 { | |
| 1431 return decode_window (window)->prev; | |
| 1432 } | |
| 1433 | |
| 1434 DEFUN ("window-parent", Fwindow_parent, 1, 1, 0, /* | |
| 1435 Return the parent of WINDOW, or nil. | |
| 1436 */ | |
| 1437 (window)) | |
| 1438 { | |
| 1439 return decode_window (window)->parent; | |
| 1440 } | |
| 1441 | |
| 1442 DEFUN ("window-lowest-p", Fwindow_lowest_p, 1, 1, 0, /* | |
| 1443 Return non-nil if WINDOW is along the bottom of its frame. | |
| 1444 */ | |
| 1445 (window)) | |
| 1446 { | |
| 1447 return window_is_lowest (decode_window (window)) ? Qt : Qnil; | |
| 1448 } | |
| 1449 | |
| 1450 DEFUN ("window-highest-p", Fwindow_highest_p, 1, 1, 0, /* | |
| 1451 Return non-nil if WINDOW is along the top of its frame. | |
| 1452 */ | |
| 1453 (window)) | |
| 1454 { | |
| 1455 return window_is_highest (decode_window (window)) ? Qt : Qnil; | |
| 1456 } | |
| 1457 | |
| 1458 DEFUN ("window-leftmost-p", Fwindow_leftmost_p, 1, 1, 0, /* | |
| 1459 Return non-nil if WINDOW is along the left edge of its frame. | |
| 1460 */ | |
| 1461 (window)) | |
| 1462 { | |
| 1463 return window_is_leftmost (decode_window (window)) ? Qt : Qnil; | |
| 1464 } | |
| 1465 | |
| 1466 DEFUN ("window-rightmost-p", Fwindow_rightmost_p, 1, 1, 0, /* | |
| 1467 Return non-nil if WINDOW is along the right edge of its frame. | |
| 1468 */ | |
| 1469 (window)) | |
| 1470 { | |
| 1471 return window_is_rightmost (decode_window (window)) ? Qt : Qnil; | |
| 1472 } | |
| 1473 | |
| 1708 | 1474 DEFUN ("pos-visible-in-window-p", Fpos_visible_in_window_p, 0, 3, 0, /* |
| 1475 Returns t if position POS is currently on the frame in WINDOW. | |
| 428 | 1476 Returns nil if that position is scrolled vertically out of view. |
| 1708 | 1477 If a character is only partially visible, nil is returned, unless the |
| 1478 optional argument PARTIALLY is non-nil. | |
| 428 | 1479 POS defaults to point in WINDOW's buffer; WINDOW, to the selected window. |
| 1480 */ | |
| 1708 | 1481 (pos, window, partially)) |
| 428 | 1482 { |
| 1483 struct window *w = decode_window (window); | |
| 665 | 1484 Charbpos top = marker_position (w->start[CURRENT_DISP]); |
| 1485 Charbpos posint; | |
| 428 | 1486 struct buffer *buf = XBUFFER (w->buffer); |
| 1487 | |
| 1488 if (NILP (pos)) | |
| 1489 posint = BUF_PT (buf); | |
| 1490 else | |
| 1491 { | |
|
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|
1492 CHECK_FIXNUM_COERCE_MARKER (pos); |
|
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1493 posint = XFIXNUM (pos); |
| 428 | 1494 } |
| 1495 | |
| 1496 if (posint < top || posint > BUF_ZV (buf)) | |
| 1497 return Qnil; | |
| 1498 | |
| 1499 /* w->start can be out of range. If it is, do something reasonable. */ | |
| 1500 if (top < BUF_BEGV (buf) || top > BUF_ZV (buf)) | |
| 1501 return Qnil; | |
| 1502 | |
| 1708 | 1503 return point_would_be_visible (w, top, posint, !NILP (partially)) |
| 1504 ? Qt : Qnil; | |
| 428 | 1505 } |
| 1506 | |
| 1507 | |
| 1508 struct window * | |
| 1509 decode_window (Lisp_Object window) | |
| 1510 { | |
| 1511 if (NILP (window)) | |
| 1512 return XWINDOW (Fselected_window (Qnil)); | |
| 1513 | |
| 1514 CHECK_LIVE_WINDOW (window); | |
| 1515 return XWINDOW (window); | |
| 1516 } | |
| 1517 | |
| 872 | 1518 int |
| 1519 window_live_p (struct window *w) | |
| 1520 { | |
| 1521 return WINDOW_LIVE_P (w); | |
| 1522 } | |
| 1523 | |
| 1524 Lisp_Object | |
| 1525 window_frame (struct window *w) | |
| 1526 { | |
| 1527 return WINDOW_FRAME (w); | |
| 1528 } | |
| 1529 | |
| 1530 Lisp_Object | |
| 1531 window_buffer (struct window *w) | |
| 1532 { | |
| 1533 return WINDOW_BUFFER (w); | |
| 1534 } | |
| 1535 | |
| 428 | 1536 DEFUN ("window-buffer", Fwindow_buffer, 0, 1, 0, /* |
| 1537 Return the buffer that WINDOW is displaying. | |
| 1538 */ | |
| 1539 (window)) | |
| 1540 { | |
| 1541 return decode_window (window)->buffer; | |
| 1542 } | |
| 1543 | |
| 1544 DEFUN ("window-frame", Fwindow_frame, 0, 1, 0, /* | |
| 1545 Return the frame that window WINDOW is on. | |
| 1546 */ | |
| 1547 (window)) | |
| 1548 { | |
| 1549 return decode_window (window)->frame; | |
| 1550 } | |
| 1551 | |
| 1552 DEFUN ("window-height", Fwindow_height, 0, 1, 0, /* | |
| 1553 Return the number of default lines in WINDOW. | |
| 1554 This actually works by dividing the window's pixel height (including | |
| 1555 the modeline and horizontal scrollbar, if any) by the height of the | |
| 1556 default font; therefore, the number of displayed lines will probably | |
| 1557 be different. | |
| 1558 Use `window-height' to get consistent results in geometry calculations. | |
| 1559 Use `window-displayed-height' to get the actual number of lines | |
| 1560 currently displayed in a window. | |
| 442 | 1561 |
| 1562 The names are somewhat confusing; here's a table to help out: | |
| 1563 | |
| 1564 width height | |
| 1565 ------------------------------------------------------------------------- | |
| 1566 w/o gutters | |
| 1567 (rows/columns) window-width window-text-area-height | |
| 1568 (pixels) window-text-area-pixel-width window-text-area-pixel-height | |
| 1569 | |
| 1570 with gutters | |
| 1571 (rows/columns) window-full-width window-height | |
| 1572 (pixels) window-pixel-width window-pixel-height | |
| 1573 | |
| 1574 actually displayed | |
| 1575 (rows/columns) ---- window-displayed-height | |
| 1576 (pixels) ---- window-displayed-text-pixel-height | |
| 428 | 1577 */ |
| 1578 (window)) | |
| 1579 { | |
|
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1580 return make_fixnum (window_char_height (decode_window (window), 1)); |
| 428 | 1581 } |
| 1582 | |
| 1583 DEFUN ("window-displayed-height", Fwindow_displayed_height, 0, 1, 0, /* | |
| 1584 Return the number of lines currently displayed in WINDOW. | |
| 1585 This counts the actual number of lines displayed in WINDOW | |
| 1586 \(as opposed to `window-height'). The modeline and horizontal | |
| 1587 scrollbar do not count as lines. If there is some blank space | |
| 1588 between the end of the buffer and the end of the window, this | |
| 1589 function pretends that there are lines of text in the default | |
| 1590 font there. | |
| 1591 */ | |
| 1592 (window)) | |
| 1593 { | |
|
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1594 return make_fixnum (window_displayed_height (decode_window (window))); |
| 428 | 1595 } |
| 1596 | |
| 1597 DEFUN ("window-pixel-height", Fwindow_pixel_height, 0, 1, 0, /* | |
| 1598 Return the height of WINDOW in pixels. Defaults to current window. | |
| 1599 This includes the window's modeline and horizontal scrollbar (if any). | |
| 1600 */ | |
| 1601 (window)) | |
| 1602 { | |
|
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1603 return make_fixnum (window_pixel_height (decode_window (window))); |
| 442 | 1604 } |
| 1605 | |
| 1606 DEFUN ("window-text-area-height", Fwindow_text_area_height, 0, 1, 0, /* | |
| 1607 Return the number of default lines in the text area of WINDOW. | |
| 1608 This actually works by dividing the window's text area pixel height (i.e. | |
| 1609 excluding the modeline and horizontal scrollbar, if any) by the height of the | |
| 1610 default font; therefore, the number of displayed lines will probably | |
| 1611 be different. | |
| 1612 See also `window-height' and `window-displayed-height'. | |
| 1613 */ | |
| 1614 (window)) | |
| 1615 { | |
|
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1616 return make_fixnum (window_char_height (decode_window (window), 0)); |
| 428 | 1617 } |
| 1618 | |
| 1619 DEFUN ("window-text-area-pixel-height", | |
| 1620 Fwindow_text_area_pixel_height, 0, 1, 0, /* | |
| 1621 Return the height in pixels of the text-displaying portion of WINDOW. | |
| 1622 Unlike `window-pixel-height', the space occupied by the modeline and | |
| 1623 horizontal scrollbar, if any, is not counted. | |
| 1624 */ | |
| 1625 (window)) | |
| 1626 { | |
| 1627 struct window *w = decode_window (window); | |
| 1628 | |
|
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1629 return make_fixnum (WINDOW_TEXT_HEIGHT (w)); |
| 428 | 1630 } |
| 1631 | |
| 1632 DEFUN ("window-displayed-text-pixel-height", | |
| 1633 Fwindow_displayed_text_pixel_height, 0, 2, 0, /* | |
| 1634 Return the height in pixels of the text displayed in WINDOW. | |
| 1635 Unlike `window-text-area-pixel-height', any blank space below the | |
| 1636 end of the buffer is not included. If optional argument NOCLIPPED | |
| 1637 is non-nil, do not include space occupied by clipped lines. | |
| 1638 */ | |
| 1639 (window, noclipped)) | |
| 1640 { | |
| 1641 struct window *w; | |
| 665 | 1642 Charbpos start, eobuf; |
| 428 | 1643 int defheight; |
| 1644 int hlimit, height, prev_height = -1; | |
| 1645 int line; | |
| 1646 int elt, nelt, i; | |
| 1647 int needed; | |
| 1648 line_start_cache_dynarr *cache; | |
| 1649 | |
| 1650 if (NILP (window)) | |
| 1651 window = Fselected_window (Qnil); | |
| 1652 | |
| 1653 CHECK_LIVE_WINDOW (window); | |
| 1654 w = XWINDOW (window); | |
| 1655 | |
| 1656 start = marker_position (w->start[CURRENT_DISP]); | |
| 1657 hlimit = WINDOW_TEXT_HEIGHT (w); | |
| 1658 eobuf = BUF_ZV (XBUFFER (w->buffer)); | |
| 1659 | |
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|
1660 default_face_width_and_height (window, NULL, &defheight); |
| 428 | 1661 |
| 1662 /* guess lines needed in line start cache + a few extra */ | |
| 1663 needed = (hlimit + defheight-1) / defheight + 3; | |
| 1664 | |
| 1665 while (1) { | |
| 1666 elt = point_in_line_start_cache (w, start, needed); | |
| 1667 assert (elt >= 0); /* in the cache */ | |
| 1668 | |
| 1669 cache = w->line_start_cache; | |
| 1670 nelt = Dynarr_length (cache); | |
| 1671 | |
| 1672 height = 0; | |
| 1673 for (i = elt; i < nelt; i++) { | |
| 1674 line = Dynarr_atp (cache, i)->height; | |
| 1675 | |
| 1676 if (height + line > hlimit) | |
|
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|
1677 return make_fixnum (!NILP (noclipped) ? height : hlimit); |
| 428 | 1678 |
| 1679 height += line; | |
| 1680 | |
| 1681 if (height == hlimit || Dynarr_atp (cache, i)->end >= eobuf) | |
|
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1682 return make_fixnum (height); |
| 428 | 1683 } |
| 1684 | |
| 1685 /* get here => need more cache lines. try again. */ | |
| 1686 assert(height > prev_height); /* progress? */ | |
| 1687 prev_height = height; | |
| 1688 | |
| 1689 needed += ((hlimit - height)*(nelt - elt) + height-1)/height + 3; | |
| 1690 } | |
| 1691 | |
|
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|
1692 RETURN_NOT_REACHED(make_fixnum (0)); /* shut up compiler */ |
| 428 | 1693 } |
| 1694 | |
| 1695 DEFUN ("window-width", Fwindow_width, 0, 1, 0, /* | |
| 1696 Return the number of display columns in WINDOW. | |
| 442 | 1697 This is the width that is usable columns available for text in WINDOW, |
| 1698 and does not include vertical scrollbars, dividers, or the like. See also | |
| 1699 `window-full-width' and `window-height'. | |
| 428 | 1700 */ |
| 1701 (window)) | |
| 1702 { | |
|
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changeset
|
1703 return make_fixnum (window_char_width (decode_window (window), 0)); |
| 428 | 1704 } |
| 1705 | |
| 442 | 1706 DEFUN ("window-full-width", Fwindow_full_width, 0, 1, 0, /* |
| 1707 Return the total number of columns in WINDOW. | |
| 1708 This is like `window-width' but includes vertical scrollbars, dividers, | |
| 1709 etc. | |
| 1710 */ | |
| 1711 (window)) | |
| 1712 { | |
|
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changeset
|
1713 return make_fixnum (window_char_width (decode_window (window), 1)); |
| 442 | 1714 } |
| 1715 | |
| 428 | 1716 DEFUN ("window-pixel-width", Fwindow_pixel_width, 0, 1, 0, /* |
| 1717 Return the width of WINDOW in pixels. Defaults to current window. | |
| 1718 */ | |
| 1719 (window)) | |
| 1720 { | |
|
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|
1721 return make_fixnum (decode_window (window)->pixel_width); |
| 428 | 1722 } |
| 1723 | |
| 1724 DEFUN ("window-text-area-pixel-width", | |
| 1725 Fwindow_text_area_pixel_width, 0, 1, 0, /* | |
| 1726 Return the width in pixels of the text-displaying portion of WINDOW. | |
| 1727 Unlike `window-pixel-width', the space occupied by the vertical | |
| 1728 scrollbar or divider, if any, is not counted. | |
| 1729 */ | |
| 1730 (window)) | |
| 1731 { | |
| 1732 struct window *w = decode_window (window); | |
| 1733 | |
|
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1734 return make_fixnum (WINDOW_TEXT_WIDTH (w)); |
| 428 | 1735 } |
| 1736 | |
| 1737 DEFUN ("window-hscroll", Fwindow_hscroll, 0, 1, 0, /* | |
| 1738 Return the number of columns by which WINDOW is scrolled from left margin. | |
| 1739 */ | |
| 1740 (window)) | |
| 1741 { | |
|
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|
1742 return make_fixnum (decode_window (window)->hscroll); |
| 428 | 1743 } |
| 1744 | |
| 1745 DEFUN ("modeline-hscroll", Fmodeline_hscroll, 0, 1, 0, /* | |
| 442 | 1746 Return the horizontal scrolling amount of WINDOW's modeline. |
| 438 | 1747 If the window has no modeline, return nil. |
| 428 | 1748 */ |
| 1749 (window)) | |
| 1750 { | |
| 1751 struct window *w = decode_window (window); | |
| 1752 | |
|
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|
1753 return (WINDOW_HAS_MODELINE_P (w)) ? make_fixnum ((int) w->modeline_hscroll) : |
| 438 | 1754 Qnil; |
| 428 | 1755 } |
| 1756 | |
| 1757 DEFUN ("set-modeline-hscroll", Fset_modeline_hscroll, 2, 2, 0, /* | |
| 442 | 1758 Set the horizontal scrolling amount of WINDOW's modeline to NCOL. |
| 438 | 1759 If NCOL is negative, it will silently be forced to 0. |
| 1760 If the window has no modeline, return nil. Otherwise, return the actual | |
| 1761 value that was set. | |
| 428 | 1762 */ |
| 1763 (window, ncol)) | |
| 1764 { | |
| 1765 struct window *w = decode_window (window); | |
| 1766 | |
| 1767 if (WINDOW_HAS_MODELINE_P (w)) | |
| 1768 { | |
| 438 | 1769 Charcount ncols; |
| 1770 | |
|
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|
1771 CHECK_FIXNUM (ncol); |
|
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|
1772 ncols = (XFIXNUM (ncol) <= 0) ? 0 : (Charcount) XFIXNUM (ncol); |
| 438 | 1773 if (ncols != w->modeline_hscroll) |
| 1774 { | |
| 1775 MARK_MODELINE_CHANGED; | |
| 1776 w->modeline_hscroll = ncols; | |
| 1777 } | |
|
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|
1778 return make_fixnum ((int) ncols); |
| 428 | 1779 } |
| 438 | 1780 |
| 428 | 1781 return Qnil; |
| 1782 } | |
| 1783 | |
| 1784 DEFUN ("set-window-hscroll", Fset_window_hscroll, 2, 2, 0, /* | |
| 1785 Set number of columns WINDOW is scrolled from left margin to NCOL. | |
| 1786 NCOL should be zero or positive. | |
| 1787 */ | |
| 1788 (window, ncol)) | |
| 1789 { | |
| 1790 struct window *w; | |
| 1791 int ncols; | |
| 1792 | |
|
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|
1793 CHECK_FIXNUM (ncol); |
|
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1794 ncols = XFIXNUM (ncol); |
| 428 | 1795 if (ncols < 0) ncols = 0; |
| 1796 w = decode_window (window); | |
| 1797 if (w->hscroll != ncols) | |
| 1798 MARK_CLIP_CHANGED; /* FSF marks differently but we aren't FSF. */ | |
| 1799 w->hscroll = ncols; | |
| 1800 return ncol; | |
| 1801 } | |
| 1802 | |
| 1803 DEFUN ("window-pixel-edges", Fwindow_pixel_edges, 0, 1, 0, /* | |
| 1804 Return a list of the pixel edge coordinates of WINDOW. | |
| 444 | 1805 The returned list is of the form (LEFT TOP RIGHT BOTTOM), |
| 1806 all relative to 0, 0 at the top left corner of WINDOW's frame. | |
| 1807 The frame toolbars, menubars and gutters are considered to be outside | |
| 1808 of this area, while the scrollbars are considered to be inside. | |
| 428 | 1809 */ |
| 1810 (window)) | |
| 1811 { | |
| 1812 struct window *w = decode_window (window); | |
| 1813 struct frame *f = XFRAME (w->frame); | |
| 1814 | |
| 5090 | 1815 int left = w->pixel_left - FRAME_PANED_LEFT_EDGE (f); |
| 1816 int top = w->pixel_top - FRAME_PANED_TOP_EDGE (f); | |
| 428 | 1817 |
|
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1818 return list4 (make_fixnum (left), |
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1819 make_fixnum (top), |
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1820 make_fixnum (left + w->pixel_width), |
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1821 make_fixnum (top + w->pixel_height)); |
| 428 | 1822 } |
| 1823 | |
| 1824 DEFUN ("window-text-area-pixel-edges", | |
| 1825 Fwindow_text_area_pixel_edges, 0, 1, 0, /* | |
| 1826 Return a list of the pixel edge coordinates of the text area of WINDOW. | |
| 444 | 1827 The returned list is of the form (LEFT TOP RIGHT BOTTOM), |
| 1828 all relative to 0, 0 at the top left corner of the total area allocated | |
| 1829 to the window, which includes the scrollbars. | |
| 428 | 1830 */ |
| 1831 (window)) | |
| 1832 { | |
| 1833 struct window *w = decode_window (window); | |
| 1834 | |
| 1835 int left = window_left_gutter_width (w, /* modeline = */ 0); | |
| 1836 int top = window_top_gutter_height (w); | |
| 1837 int right = WINDOW_WIDTH (w) - window_right_gutter_width (w, 0); | |
| 1838 int bottom = WINDOW_HEIGHT (w) - window_bottom_gutter_height (w); | |
| 1839 | |
|
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1840 return list4 (make_fixnum (left), |
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1841 make_fixnum (top), |
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1842 make_fixnum (right), |
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1843 make_fixnum (bottom)); |
| 428 | 1844 } |
| 1845 | |
| 1846 DEFUN ("window-point", Fwindow_point, 0, 1, 0, /* | |
| 1847 Return current value of point in WINDOW. | |
| 442 | 1848 For a non-selected window, this is the value point would have |
| 428 | 1849 if that window were selected. |
| 1850 | |
| 1851 Note that, when WINDOW is the selected window and its buffer | |
| 1852 is also currently selected, the value returned is the same as (point). | |
| 1853 It would be more strictly correct to return the `top-level' value | |
| 1854 of point, outside of any save-excursion forms. | |
| 444 | 1855 But that value is hard to find. |
| 428 | 1856 */ |
| 1857 (window)) | |
| 1858 { | |
| 1859 struct window *w = decode_window (window); | |
| 1860 | |
| 1861 /* The special check for current buffer is necessary for this | |
| 1862 function to work as defined when called within an excursion. */ | |
| 1863 if (w == XWINDOW (Fselected_window (XFRAME (w->frame)->device)) | |
| 1864 && current_buffer == XBUFFER (w->buffer)) | |
| 1865 return Fpoint (Qnil); | |
| 1866 return Fmarker_position (w->pointm[CURRENT_DISP]); | |
| 1867 } | |
| 1868 | |
| 1869 DEFUN ("window-start", Fwindow_start, 0, 1, 0, /* | |
| 1870 Return position at which display currently starts in WINDOW. | |
| 1871 This is updated by redisplay or by calling `set-window-start'. | |
| 1872 */ | |
| 1873 (window)) | |
| 1874 { | |
| 1875 return Fmarker_position (decode_window (window)->start[CURRENT_DISP]); | |
| 1876 } | |
| 1877 | |
| 1878 DEFUN ("window-end", Fwindow_end, 0, 2, 0, /* | |
| 1879 Return position at which display currently ends in WINDOW. | |
| 1880 This is updated by redisplay, when it runs to completion. | |
| 444 | 1881 Simply changing the buffer text or setting `window-start' does not |
| 1882 update this value. WINDOW defaults to the selected window. | |
| 1883 | |
| 1884 If optional arg GUARANTEE is non-nil, the return value is guaranteed | |
| 1885 to be the same value as this function would return at the end of the | |
| 1886 next full redisplay assuming nothing else changes in the meantime. | |
| 1887 This function is potentially much slower with this flag set. | |
| 428 | 1888 */ |
| 1889 (window, guarantee)) | |
| 1890 { | |
| 1891 struct window *w = decode_window (window); | |
| 1892 | |
| 1893 if (NILP (guarantee)) | |
| 1894 { | |
| 1895 Lisp_Object buf; | |
| 1896 buf = w->buffer; | |
| 1897 CHECK_BUFFER (buf); | |
|
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1898 return make_fixnum (BUF_Z (XBUFFER (buf)) - w->window_end_pos[CURRENT_DISP]); |
| 428 | 1899 } |
| 1900 else | |
| 1901 { | |
| 665 | 1902 Charbpos startp = marker_position (w->start[CURRENT_DISP]); |
|
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1903 return make_fixnum (end_of_last_line (w, startp)); |
| 428 | 1904 } |
| 1905 } | |
| 1906 | |
| 442 | 1907 DEFUN ("window-last-line-visible-height", Fwindow_last_line_visible_height, 0, 1, 0, /* |
| 1908 Return pixel height of visible part of last window line if it is clipped. | |
| 1909 If the last line is not clipped, return nil. | |
| 1910 */ | |
| 1911 (window)) | |
| 1912 { | |
| 1913 struct window *w = decode_window (window); | |
| 1914 display_line_dynarr *dla = window_display_lines (w, CURRENT_DISP); | |
| 1915 int num_lines = Dynarr_length (dla); | |
| 1916 struct display_line *dl; | |
| 1917 | |
| 1918 /* No lines - no clipped lines */ | |
| 4967 | 1919 if (num_lines == 0 || (num_lines == 1 && Dynarr_begin (dla)->modeline)) |
| 442 | 1920 return Qnil; |
| 1921 | |
| 1922 dl = Dynarr_atp (dla, num_lines - 1); | |
| 1923 if (dl->clip == 0) | |
| 1924 return Qnil; | |
| 1925 | |
|
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1926 return make_fixnum (dl->ascent + dl->descent - dl->clip); |
| 442 | 1927 } |
| 1928 | |
| 428 | 1929 DEFUN ("set-window-point", Fset_window_point, 2, 2, 0, /* |
| 1930 Make point value in WINDOW be at position POS in WINDOW's buffer. | |
| 1161 | 1931 If WINDOW is the selected window, and window's buffer is the current |
| 1932 buffer, this actually changes the buffer's point instead of the window's | |
| 1933 point. (The equivalence of the selected window's point with its buffer's | |
| 1934 point is maintained throughout XEmacs. However, enforcing the additional | |
| 1935 restriction on the current buffer is "bug compatible" with FSF and is | |
| 1936 perhaps more logical.) | |
| 428 | 1937 */ |
| 1938 (window, pos)) | |
| 1939 { | |
| 1940 struct window *w = decode_window (window); | |
| 1941 | |
|
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1942 CHECK_FIXNUM_COERCE_MARKER (pos); |
| 1161 | 1943 |
| 844 | 1944 /* Don't dereference selected-window because there may not |
| 1945 be one -- e.g. at startup */ | |
| 1161 | 1946 if (EQ (wrap_window (w), Fselected_window (Qnil)) |
| 1947 && EQ (w->buffer, Fcurrent_buffer ())) | |
| 1948 Fgoto_char (pos, Qnil); | |
| 428 | 1949 else |
| 1950 set_marker_restricted (w->pointm[CURRENT_DISP], pos, w->buffer); | |
| 1951 | |
| 1952 MARK_POINT_CHANGED; | |
| 1953 return pos; | |
| 1954 } | |
| 1955 | |
| 1956 DEFUN ("set-window-start", Fset_window_start, 2, 3, 0, /* | |
| 1957 Make display in WINDOW start at position POS in WINDOW's buffer. | |
| 1958 Optional third arg NOFORCE non-nil inhibits next redisplay | |
| 1959 from overriding motion of point in order to display at this exact start. | |
| 1960 */ | |
| 1961 (window, pos, noforce)) | |
| 1962 { | |
| 1963 struct window *w = decode_window (window); | |
| 1964 | |
|
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1965 CHECK_FIXNUM_COERCE_MARKER (pos); |
| 428 | 1966 set_marker_restricted (w->start[CURRENT_DISP], pos, w->buffer); |
| 1967 /* this is not right, but much easier than doing what is right. */ | |
| 1968 /* w->start_at_line_beg = 0; */ | |
| 1969 /* WTF is the above supposed to mean? GE */ | |
| 1970 w->start_at_line_beg = beginning_of_line_p (XBUFFER (w->buffer), | |
| 1971 marker_position (w->start[CURRENT_DISP])); | |
| 1972 if (NILP (noforce)) | |
| 1973 w->force_start = 1; | |
| 1974 w->redo_modeline = 1; | |
| 1975 SET_LAST_MODIFIED (w, 0); | |
| 1976 SET_LAST_FACECHANGE (w); | |
| 1977 | |
| 1978 MARK_WINDOWS_CHANGED (w); | |
| 1979 | |
| 1980 return pos; | |
| 1981 } | |
| 1982 | |
| 1983 DEFUN ("window-dedicated-p", Fwindow_dedicated_p, 1, 1, 0, /* | |
| 1984 Return WINDOW's dedicated object, usually t or nil. | |
| 1985 See also `set-window-dedicated-p'. | |
| 1986 */ | |
| 1987 (window)) | |
| 1988 { | |
| 1989 return decode_window (window)->dedicated; | |
| 1990 } | |
| 1991 | |
| 1992 DEFUN ("set-window-dedicated-p", Fset_window_dedicated_p, 2, 2, 0, /* | |
| 1993 Control whether WINDOW is dedicated to the buffer it displays. | |
| 1994 If it is dedicated, Emacs will not automatically change | |
| 1995 which buffer appears in it. | |
| 1996 The second argument is the new value for the dedication flag; | |
| 1997 non-nil means yes. | |
| 1998 */ | |
| 1999 (window, arg)) | |
| 2000 { | |
| 2001 struct window *w = decode_window (window); | |
| 2002 | |
| 2003 w->dedicated = NILP (arg) ? Qnil : Qt; | |
| 2004 | |
| 2005 return w->dedicated; | |
| 2006 } | |
| 2007 | |
| 2008 /* FSFmacs has window-display-table here. We have display table as a | |
| 2009 specifier. */ | |
| 2010 | |
| 2011 | |
| 2012 /* Record info on buffer window w is displaying | |
| 2013 when it is about to cease to display that buffer. */ | |
| 2014 static void | |
| 2015 unshow_buffer (struct window *w) | |
| 2016 { | |
| 2017 Lisp_Object buf = w->buffer; | |
| 844 | 2018 struct buffer *b = XBUFFER (buf); |
| 2019 | |
|
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2020 assert (b == XMARKER (w->pointm[CURRENT_DISP])->buffer); |
| 428 | 2021 |
| 2022 /* FSF disables this check, so I'll do it too. I hope it won't | |
| 2023 break things. --ben */ | |
| 2024 #if 0 | |
| 2025 if (w == XWINDOW (Fselected_window (Qnil)) | |
| 2026 || ! EQ (buf, XWINDOW (Fselected_window (Qnil))->buffer)) | |
| 2027 /* Do this except when the selected window's buffer | |
| 2028 is being removed from some other window. */ | |
| 2029 #endif | |
| 2030 /* last_window_start records the start position that this buffer | |
| 2031 had in the last window to be disconnected from it. | |
| 2032 Now that this statement is unconditional, | |
| 2033 it is possible for the buffer to be displayed in the | |
| 2034 selected window, while last_window_start reflects another | |
| 2035 window which was recently showing the same buffer. | |
| 2036 Some people might say that might be a good thing. Let's see. */ | |
| 2037 XBUFFER (buf)->last_window_start = | |
| 2038 marker_position (w->start[CURRENT_DISP]); | |
| 2039 | |
| 2040 /* Point in the selected window's buffer | |
| 2041 is actually stored in that buffer, and the window's pointm isn't used. | |
| 2042 So don't clobber point in that buffer. */ | |
| 2043 if (! EQ (buf, XWINDOW (Fselected_window (Qnil))->buffer)) | |
| 844 | 2044 BUF_SET_PT (b, |
| 2045 charbpos_clip_to_bounds | |
| 2046 (BUF_BEGV (b), | |
| 2047 marker_position (w->pointm[CURRENT_DISP]), | |
| 2048 BUF_ZV (b))); | |
| 2049 | |
| 2050 { | |
|
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2051 Lisp_Object marker; |
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2052 Lisp_Object saved_point = Fgethash (buf, w->saved_point_cache, Qnil); |
| 844 | 2053 int selected = EQ (wrap_window (w), Fselected_window (Qnil)); |
| 2054 | |
|
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2055 if (NILP (saved_point)) |
| 844 | 2056 { |
|
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2057 saved_point = Fmake_extent (Qnil, Qnil, buf); |
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2058 Fset_extent_property (saved_point, Qstart_open, Qt); |
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2059 Fputhash (buf, saved_point, w->saved_point_cache); |
| 844 | 2060 } |
|
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2061 |
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2062 if (selected) |
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2063 { |
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2064 set_extent_endpoints (XEXTENT (saved_point), |
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2065 BYTE_BUF_PT (b), BYTE_BUF_PT (b), buf); |
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2066 } |
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2067 else |
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2068 { |
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2069 set_extent_endpoints (XEXTENT (saved_point), |
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2070 byte_marker_position (w->pointm[CURRENT_DISP]), |
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2071 byte_marker_position (w->pointm[CURRENT_DISP]), |
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2072 buf); |
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2073 } |
| 844 | 2074 |
| 2075 marker = Fgethash (buf, w->saved_last_window_start_cache, Qnil); | |
| 2076 | |
| 2077 if (NILP (marker)) | |
| 2078 { | |
| 2079 marker = Fmake_marker (); | |
| 2080 Fputhash (buf, marker, w->saved_last_window_start_cache); | |
| 2081 } | |
| 2082 Fset_marker (marker, w->start[CURRENT_DISP], buf); | |
| 2083 } | |
| 428 | 2084 } |
| 2085 | |
| 2086 /* Put REPLACEMENT into the window structure in place of OLD. */ | |
| 2087 static void | |
| 2088 replace_window (Lisp_Object old, Lisp_Object replacement) | |
| 2089 { | |
| 2090 Lisp_Object tem; | |
| 2091 struct window *o = XWINDOW (old), *p = XWINDOW (replacement); | |
| 2092 | |
| 2093 /* If OLD is its frame's root_window, then replacement is the new | |
| 2094 root_window for that frame. */ | |
| 2095 | |
| 2096 if (EQ (old, FRAME_ROOT_WINDOW (XFRAME (o->frame)))) | |
| 2097 FRAME_ROOT_WINDOW (XFRAME (o->frame)) = replacement; | |
| 2098 | |
| 2099 WINDOW_LEFT (p) = WINDOW_LEFT (o); | |
| 2100 WINDOW_TOP (p) = WINDOW_TOP (o); | |
| 2101 WINDOW_WIDTH (p) = WINDOW_WIDTH (o); | |
| 2102 WINDOW_HEIGHT (p) = WINDOW_HEIGHT (o); | |
| 2103 | |
| 2104 p->next = tem = o->next; | |
| 2105 if (!NILP (tem)) | |
| 2106 XWINDOW (tem)->prev = replacement; | |
| 2107 | |
| 2108 p->prev = tem = o->prev; | |
| 2109 if (!NILP (tem)) | |
| 2110 XWINDOW (tem)->next = replacement; | |
| 2111 | |
| 2112 p->parent = tem = o->parent; | |
| 2113 if (!NILP (tem)) | |
| 2114 { | |
| 2115 if (EQ (XWINDOW (tem)->vchild, old)) | |
| 2116 XWINDOW (tem)->vchild = replacement; | |
| 2117 if (EQ (XWINDOW (tem)->hchild, old)) | |
| 2118 XWINDOW (tem)->hchild = replacement; | |
| 2119 } | |
| 2120 | |
| 2121 /* #### Here, if replacement is a vertical combination | |
| 2122 and so is its new parent, we should make replacement's | |
| 2123 children be children of that parent instead. */ | |
| 442 | 2124 |
| 2125 ERROR_CHECK_SUBWINDOW_CACHE (p); | |
| 2126 } | |
| 2127 | |
| 2128 static void | |
| 2129 window_unmap_subwindows (struct window* w) | |
| 2130 { | |
| 2131 assert (!NILP (w->subwindow_instance_cache)); | |
| 2132 elisp_maphash (unmap_subwindow_instance_cache_mapper, | |
| 2133 w->subwindow_instance_cache, (void*)1); | |
| 428 | 2134 } |
| 2135 | |
| 2136 /* we're deleting W; set the structure of W to indicate this. */ | |
| 2137 | |
| 2138 static void | |
| 2139 mark_window_as_deleted (struct window *w) | |
| 2140 { | |
| 442 | 2141 /* The window instance cache is going away now, so need to get the |
| 2142 cachels reset by redisplay. */ | |
| 2143 MARK_FRAME_SUBWINDOWS_CHANGED (XFRAME (WINDOW_FRAME (w))); | |
| 2144 | |
| 2145 /* The cache is going away. If we leave unmapping to | |
| 2146 reset_subwindow_cachels then we get in a situation where the | |
| 2147 domain (the window) has been deleted but we still need access to | |
| 2148 its attributes in order to unmap windows properly. Since the | |
| 2149 subwindows are going to get GC'd anyway as a result of the domain | |
| 2150 going away, it is safer to just unmap them all while we know the | |
| 2151 domain is still valid. */ | |
| 2152 ERROR_CHECK_SUBWINDOW_CACHE (w); | |
| 2153 window_unmap_subwindows (w); | |
| 2154 | |
| 617 | 2155 /* Free the extra data structures attached to windows immediately so |
| 2156 they don't sit around consuming excess space. They will be | |
| 2157 reinitialized by the window-configuration code as necessary. */ | |
|
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2158 finalize_window (wrap_window (w)); |
| 617 | 2159 |
| 1149 | 2160 /* Nobody should be accessing anything in this object any more, |
| 618 | 2161 and making them Qnil allows for better GC'ing in case a pointer |
| 2162 to the dead window continues to hang around. Zero all other | |
| 2163 structs in case someone tries to access something through them. | |
| 2164 | |
| 2165 (So, in point of fact, we zero out all of the "saved" slots, | |
| 2166 which are obviously restored from the window config, plus the | |
| 2167 slots which were already zeroed.) | |
| 617 | 2168 |
| 2169 As an example of why setting the values to Qnil is good, here | |
| 2170 is an old comment: | |
| 2171 | |
| 2172 In the loop | |
| 428 | 2173 (while t (split-window) (delete-window)) |
| 2174 we end up with a tree of deleted windows which are all connected | |
| 2175 through the `next' slot. This might not seem so bad, as they're | |
| 2176 deleted, and will presumably be GCed - but if even *one* of those | |
| 2177 windows is still being pointed to, by the user, or by a window | |
| 1149 | 2178 configuration, then *all* of those windows stick around. */ |
| 617 | 2179 |
| 618 | 2180 #define WINDOW_SLOT(slot) |
| 2181 #define WINDOW_SAVED_SLOT(slot, compare) w->slot = Qnil; | |
| 617 | 2182 #include "winslots.h" |
| 428 | 2183 |
| 618 | 2184 w->next = Qnil; |
| 2185 w->prev = Qnil; | |
| 2186 w->hchild = Qnil; | |
| 2187 w->vchild = Qnil; | |
| 2188 w->parent = Qnil; | |
| 2189 w->subwindow_instance_cache = Qnil; | |
| 2190 | |
| 428 | 2191 w->dead = 1; |
| 853 | 2192 note_object_deleted (wrap_window (w)); |
| 428 | 2193 } |
| 2194 | |
| 1207 | 2195 /* Check if window contains pwindow. */ |
| 2196 | |
| 2197 static int | |
| 2198 contains_window (Lisp_Object window, Lisp_Object pwindow) | |
| 2199 { | |
| 2200 while (!NILP (pwindow)) | |
| 2201 { | |
| 2202 if (EQ (window, pwindow)) | |
| 2203 return 1; | |
| 2204 pwindow = XWINDOW (pwindow)->parent; | |
| 2205 } | |
| 2206 return 0; | |
| 2207 } | |
| 2208 | |
|
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2209 static int |
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2210 delete_saved_point (Lisp_Object UNUSED (buffer), Lisp_Object saved_point, |
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2211 void *UNUSED (closure)) |
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2212 { |
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2213 Fdelete_extent (saved_point); |
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2214 return 0; |
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2215 } |
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2216 |
| 428 | 2217 DEFUN ("delete-window", Fdelete_window, 0, 2, "", /* |
| 2218 Remove WINDOW from the display. Default is selected window. | |
| 444 | 2219 If window is the only one on its frame, the frame is deleted as well. |
| 428 | 2220 Normally, you cannot delete the last non-minibuffer-only frame (you must |
| 2221 use `save-buffers-kill-emacs' or `kill-emacs'). However, if optional | |
| 2222 second argument FORCE is non-nil, you can delete the last frame. (This | |
| 2223 will automatically call `save-buffers-kill-emacs'.) | |
| 2224 */ | |
| 2225 (window, force)) | |
| 2226 { | |
| 2227 /* This function can GC if this is the only window in the frame */ | |
| 2228 struct window *w; | |
| 2229 Lisp_Object parent; | |
| 2230 struct window *par; | |
| 2231 Lisp_Object frame; | |
| 2232 struct frame *f; | |
| 2233 struct device *d; | |
| 2234 | |
| 2235 /* Note: this function is called by other C code on non-leaf | |
| 2236 windows. */ | |
| 2237 | |
| 2238 /* Do the equivalent of decode_window() but don't error out on | |
| 2239 deleted window; it's OK to delete an already-deleted window. */ | |
| 2240 if (NILP (window)) | |
| 2241 window = Fselected_window (Qnil); | |
| 2242 else | |
| 2243 CHECK_WINDOW (window); | |
| 442 | 2244 |
| 428 | 2245 w = XWINDOW (window); |
| 2246 | |
| 2247 /* It's okay to delete an already-deleted window. */ | |
| 2248 if (! WINDOW_LIVE_P (w)) | |
| 2249 return Qnil; | |
| 2250 | |
| 853 | 2251 check_allowed_operation (OPERATION_DELETE_OBJECT, window, Qnil); |
| 2252 | |
| 428 | 2253 frame = WINDOW_FRAME (w); |
| 2254 f = XFRAME (frame); | |
| 2255 d = XDEVICE (FRAME_DEVICE (f)); | |
| 2256 | |
| 2257 if (TOP_LEVEL_WINDOW_P (w)) | |
| 2258 { | |
| 2259 if (NILP (memq_no_quit (frame, DEVICE_FRAME_LIST (d)))) | |
| 2260 /* this frame isn't fully initialized yet; don't blow up. */ | |
| 2261 return Qnil; | |
| 2262 | |
| 2263 if (MINI_WINDOW_P (XWINDOW (window))) | |
| 563 | 2264 signal_error (Qinvalid_operation, "Attempt to delete the minibuffer window", Qunbound); |
| 428 | 2265 |
| 2266 /* It has been suggested that it's a good thing for C-x 0 to have this | |
| 2267 behavior, but not such a good idea for #'delete-window to have it. | |
| 2268 Maybe C-x 0 should be bound to something else, or maybe frame | |
| 2269 deletion should only happen when this is called interactively. | |
| 2270 */ | |
| 2271 delete_frame_internal (f, !NILP (force), 0, 0); | |
| 2272 return Qnil; | |
| 2273 } | |
| 2274 | |
| 2275 /* At this point, we know the window has a parent. */ | |
| 2276 parent = w->parent; | |
| 2277 par = XWINDOW (parent); | |
| 2278 | |
| 2279 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f); | |
| 430 | 2280 /* It's quite likely that deleting a window will result in |
| 2281 subwindows needing to be deleted also (since they are cached | |
| 2282 per-window). So we mark them as changed, so that the cachels will | |
| 2283 get reset by redisplay and thus deleted subwindows can get | |
| 2284 GC'd. */ | |
| 2285 MARK_FRAME_SUBWINDOWS_CHANGED (f); | |
| 428 | 2286 |
| 2287 /* Are we trying to delete any frame's selected window? | |
| 2288 Note that we could be dealing with a non-leaf window | |
| 2289 where the selected window is one of our children. | |
| 2290 So, we check by scanning all the ancestors of the | |
| 2291 frame's selected window and comparing each one with | |
| 2292 WINDOW. */ | |
| 1207 | 2293 if (contains_window (window, FRAME_SELECTED_WINDOW (f))) |
| 2294 { | |
| 2295 Lisp_Object alternative; | |
| 2296 alternative = Fnext_window (window, Qlambda, Qnil, Qnil); | |
| 2297 | |
| 2298 /* #### */ | |
| 2299 /* If we're about to delete the selected window on the | |
| 2300 selected frame, then we should use Fselect_window to select | |
| 2301 the new window. On the other hand, if we're about to | |
| 2302 delete the selected window on any other frame, we shouldn't do | |
| 2303 anything but set the frame's selected_window slot. */ | |
| 2304 if (EQ (frame, Fselected_frame (Qnil))) | |
| 2305 Fselect_window (alternative, Qnil); | |
| 2306 else | |
| 2307 set_frame_selected_window (f, alternative); | |
| 2308 } | |
| 2309 | |
| 2310 /* Some display parameters (gutter display specifically) depend on | |
| 2311 FRAME_LAST_NONMINIBUF (f) to be set to a live window. Ensure that. */ | |
| 2312 if (contains_window (window, FRAME_LAST_NONMINIBUF_WINDOW (f))) | |
| 2313 f->last_nonminibuf_window = Fnext_window (window, Qlambda, Qnil, Qnil); | |
| 428 | 2314 |
| 2315 /* w->buffer is nil in a non-leaf window; in this case, | |
| 2316 get rid of the markers we maintain that point into that buffer. */ | |
| 2317 if (!NILP (w->buffer)) | |
| 2318 { | |
| 2319 unshow_buffer (w); | |
| 2320 unchain_marker (w->pointm[CURRENT_DISP]); | |
| 2321 unchain_marker (w->pointm[DESIRED_DISP]); | |
| 2322 unchain_marker (w->pointm[CMOTION_DISP]); | |
| 2323 unchain_marker (w->start[CURRENT_DISP]); | |
| 2324 unchain_marker (w->start[DESIRED_DISP]); | |
| 2325 unchain_marker (w->start[CMOTION_DISP]); | |
| 2326 unchain_marker (w->sb_point); | |
| 1149 | 2327 w->buffer = Qnil; |
| 428 | 2328 } |
| 2329 | |
|
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2330 /* Delete the saved point extents, since they will still be referenced |
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2331 from the buffer and thus won't be garbage-collected until the buffer |
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2332 is. */ |
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2333 elisp_maphash_unsafe (delete_saved_point, w->saved_point_cache, NULL); |
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2334 |
| 428 | 2335 /* close up the hole in the sibling list */ |
| 2336 if (!NILP (w->next)) | |
| 2337 XWINDOW (w->next)->prev = w->prev; | |
| 2338 if (!NILP (w->prev)) | |
| 2339 XWINDOW (w->prev)->next = w->next; | |
| 2340 if (EQ (window, par->hchild)) | |
| 2341 par->hchild = w->next; | |
| 2342 if (EQ (window, par->vchild)) | |
| 2343 par->vchild = w->next; | |
| 2344 | |
| 2345 /* Find one of our siblings to give our space to. */ | |
| 2346 { | |
| 2347 Lisp_Object sib = w->prev; | |
| 2348 if (NILP (sib)) | |
| 2349 { | |
| 2350 /* If w gives its space to its next sibling, that sibling needs | |
| 2351 to have its top/left side pulled back to where w's is. | |
| 2352 set_window_{height,width} will re-position the sibling's | |
| 2353 children. */ | |
| 2354 sib = w->next; | |
| 2355 WINDOW_TOP (XWINDOW (sib)) = WINDOW_TOP (w); | |
| 2356 WINDOW_LEFT (XWINDOW (sib)) = WINDOW_LEFT (w); | |
| 2357 } | |
| 2358 | |
| 2359 /* Stretch that sibling. */ | |
| 2360 if (!NILP (par->vchild)) | |
| 2361 set_window_pixheight | |
| 2362 (sib, (WINDOW_HEIGHT (XWINDOW (sib)) + WINDOW_HEIGHT (w)), 1); | |
| 2363 if (!NILP (par->hchild)) | |
| 2364 set_window_pixwidth | |
| 2365 (sib, (WINDOW_WIDTH (XWINDOW (sib)) + WINDOW_WIDTH (w)), 1); | |
| 2366 } | |
| 2367 | |
| 2368 /* If parent now has only one child, | |
| 2369 put the child into the parent's place. */ | |
| 2370 { | |
| 2371 Lisp_Object parchild = par->hchild; | |
| 2372 if (NILP (parchild)) | |
| 2373 parchild = par->vchild; | |
| 2374 if (NILP (XWINDOW (parchild)->next)) | |
| 2375 { | |
| 2376 replace_window (parent, parchild); | |
| 2377 mark_window_as_deleted (XWINDOW (parent)); | |
| 2378 } | |
| 2379 } | |
| 2380 | |
| 2381 /* Since we may be deleting combination windows, we must make sure that | |
| 2382 not only W but all its children have been marked as deleted. */ | |
| 2383 if (!NILP (w->hchild)) | |
| 2384 delete_all_subwindows (XWINDOW (w->hchild)); | |
| 2385 else if (!NILP (w->vchild)) | |
| 2386 delete_all_subwindows (XWINDOW (w->vchild)); | |
| 2387 | |
| 1752 | 2388 /* Warning: mark_window_as_deleted calls window_unmap_subwindows and |
| 2389 therefore redisplay, so it requires the mirror structure to be | |
| 2390 correct. We must dirty the mirror before it is called. */ | |
| 2391 f->mirror_dirty = 1; | |
| 2392 | |
| 428 | 2393 mark_window_as_deleted (w); |
| 2394 | |
| 2395 return Qnil; | |
| 2396 } | |
| 2397 | |
| 2398 | |
| 2399 DEFUN ("next-window", Fnext_window, 0, 4, 0, /* | |
| 442 | 2400 Return the next window after WINDOW in the canonical ordering of windows. |
| 428 | 2401 If omitted, WINDOW defaults to the selected window. |
| 2402 | |
| 2403 Optional second arg MINIBUF t means count the minibuffer window even | |
| 2404 if not active. MINIBUF nil or omitted means count the minibuffer iff | |
| 2405 it is active. MINIBUF neither t nor nil means not to count the | |
| 2406 minibuffer even if it is active. | |
| 2407 | |
| 2408 Several frames may share a single minibuffer; if the minibuffer | |
| 2409 counts, all windows on all frames that share that minibuffer count | |
| 2410 too. Therefore, `next-window' can be used to iterate through the | |
| 2411 set of windows even when the minibuffer is on another frame. If the | |
| 2412 minibuffer does not count, only windows from WINDOW's frame count. | |
| 2413 | |
| 444 | 2414 By default, only the windows in the selected frame are considered. |
| 2415 The optional argument WHICH-FRAMES changes this behavior: | |
| 2416 WHICH-FRAMES = `visible' means search windows on all visible frames. | |
| 448 | 2417 WHICH-FRAMES = 0 means search windows on all visible and iconified frames. |
| 444 | 2418 WHICH-FRAMES = t means search windows on all frames including invisible frames. |
| 2419 WHICH-FRAMES = a frame means search only windows on that frame. | |
| 2420 Anything else means restrict to the selected frame. | |
| 2421 | |
| 2422 The optional fourth argument WHICH-DEVICES further clarifies on which | |
| 2423 devices to search for frames as specified by WHICH-FRAMES. This value | |
| 2424 is only meaningful if WHICH-FRAMES is non-nil. | |
| 2425 If nil or omitted, search all devices on the selected console. | |
| 2426 If a device, only search that device. | |
| 2427 If a console, search all devices on that console. | |
| 2428 If a device type, search all devices of that type. | |
| 2429 If `window-system', search all window-system devices. | |
| 2430 Any other non-nil value means search all devices. | |
| 2431 | |
| 2432 If you use consistent values for MINIBUF, WHICH-FRAMES, and WHICH-DEVICES, | |
| 2433 you can use `next-window' to iterate through the entire cycle of | |
| 2434 acceptable windows, eventually ending up back at the window you started with. | |
| 428 | 2435 `previous-window' traverses the same cycle, in the reverse order. |
| 2436 */ | |
| 444 | 2437 (window, minibuf, which_frames, which_devices)) |
| 428 | 2438 { |
| 2439 Lisp_Object tem; | |
| 2440 Lisp_Object start_window; | |
| 2441 | |
| 2442 if (NILP (window)) | |
| 2443 window = Fselected_window (Qnil); | |
| 2444 else | |
| 2445 CHECK_LIVE_WINDOW (window); | |
| 2446 | |
| 2447 start_window = window; | |
| 2448 | |
| 2449 /* minibuf == nil may or may not include minibuffers. | |
| 2450 Decide if it does. */ | |
| 2451 if (NILP (minibuf)) | |
| 2452 minibuf = (minibuf_level ? minibuf_window : Qlambda); | |
| 2453 else if (! EQ (minibuf, Qt)) | |
| 2454 minibuf = Qlambda; | |
| 442 | 2455 /* Now `minibuf' is one of: |
| 2456 t => count all minibuffer windows | |
| 2457 lambda => count none of them | |
| 428 | 2458 or a specific minibuffer window (the active one) to count. */ |
| 2459 | |
| 444 | 2460 /* which_frames == nil doesn't specify which frames to include. */ |
| 2461 if (NILP (which_frames)) | |
| 2462 which_frames = (! EQ (minibuf, Qlambda) | |
| 428 | 2463 ? (FRAME_MINIBUF_WINDOW |
| 2464 (XFRAME | |
| 2465 (WINDOW_FRAME | |
| 2466 (XWINDOW (window))))) | |
| 2467 : Qnil); | |
| 444 | 2468 else if (EQ (which_frames, Qvisible)) |
| 428 | 2469 ; |
| 444 | 2470 else if (ZEROP (which_frames)) |
| 428 | 2471 ; |
| 444 | 2472 else if (FRAMEP (which_frames) && ! EQ (which_frames, Fwindow_frame (window))) |
| 2473 /* If which_frames is a frame and window arg isn't on that frame, just | |
| 428 | 2474 return the first window on the frame. */ |
| 444 | 2475 return frame_first_window (XFRAME (which_frames)); |
| 2476 else if (! EQ (which_frames, Qt)) | |
| 2477 which_frames = Qnil; | |
| 2478 /* Now `which_frames' is one of: | |
| 442 | 2479 t => search all frames |
| 2480 nil => search just the current frame | |
| 2481 visible => search just visible frames | |
| 2482 0 => search visible and iconified frames | |
| 2483 a window => search the frame that window belongs to. */ | |
| 428 | 2484 |
| 2485 /* Do this loop at least once, to get the next window, and perhaps | |
| 2486 again, if we hit the minibuffer and that is not acceptable. */ | |
| 2487 do | |
| 2488 { | |
| 2489 /* Find a window that actually has a next one. This loop | |
| 2490 climbs up the tree. */ | |
| 2491 while (tem = XWINDOW (window)->next, NILP (tem)) | |
| 2492 if (tem = XWINDOW (window)->parent, !NILP (tem)) | |
| 2493 window = tem; | |
| 2494 else /* window must be minibuffer window now */ | |
| 2495 { | |
| 2496 /* We've reached the end of this frame. | |
| 2497 Which other frames are acceptable? */ | |
| 2498 tem = WINDOW_FRAME (XWINDOW (window)); | |
| 2499 | |
| 444 | 2500 if (! NILP (which_frames)) |
| 428 | 2501 { |
| 442 | 2502 Lisp_Object tem1 = tem; |
| 444 | 2503 tem = next_frame (tem, which_frames, which_devices); |
| 442 | 2504 |
| 428 | 2505 /* In the case where the minibuffer is active, |
| 2506 and we include its frame as well as the selected one, | |
| 2507 next_frame may get stuck in that frame. | |
| 2508 If that happens, go back to the selected frame | |
| 2509 so we can complete the cycle. */ | |
| 2510 if (EQ (tem, tem1)) | |
| 793 | 2511 tem = wrap_frame (selected_frame ()); |
| 428 | 2512 } |
| 2513 | |
| 2514 tem = FRAME_ROOT_WINDOW (XFRAME (tem)); | |
| 2515 break; | |
| 2516 } | |
| 2517 | |
| 2518 window = tem; | |
| 2519 | |
| 2520 /* If we're in a combination window, find its first child and | |
| 2521 recurse on that. Otherwise, we've found the window we want. */ | |
| 2522 while (1) | |
| 2523 { | |
| 2524 if (!NILP (XWINDOW (window)->hchild)) | |
| 2525 window = XWINDOW (window)->hchild; | |
| 2526 else if (!NILP (XWINDOW (window)->vchild)) | |
| 2527 window = XWINDOW (window)->vchild; | |
| 2528 else break; | |
| 2529 } | |
| 2530 } | |
| 2531 /* Which windows are acceptable? | |
| 2532 Exit the loop and accept this window if | |
| 2533 this isn't a minibuffer window, | |
| 2534 or we're accepting all minibuffer windows, | |
| 2535 or this is the active minibuffer and we are accepting that one, or | |
| 2536 we've come all the way around and we're back at the original window. */ | |
| 2537 while (MINI_WINDOW_P (XWINDOW (window)) | |
| 2538 && ! EQ (minibuf, Qt) | |
| 2539 && ! EQ (minibuf, window) | |
| 2540 && ! EQ (window, start_window)); | |
| 2541 | |
| 2542 return window; | |
| 2543 } | |
| 2544 | |
| 2545 DEFUN ("previous-window", Fprevious_window, 0, 4, 0, /* | |
| 442 | 2546 Return the window preceding WINDOW in the canonical ordering of windows. |
| 428 | 2547 If omitted, WINDOW defaults to the selected window. |
| 2548 | |
| 2549 Optional second arg MINIBUF t means count the minibuffer window even | |
| 2550 if not active. MINIBUF nil or omitted means count the minibuffer iff | |
| 2551 it is active. MINIBUF neither t nor nil means not to count the | |
| 2552 minibuffer even if it is active. | |
| 2553 | |
| 2554 Several frames may share a single minibuffer; if the minibuffer | |
| 2555 counts, all windows on all frames that share that minibuffer count | |
| 2556 too. Therefore, `previous-window' can be used to iterate through | |
| 2557 the set of windows even when the minibuffer is on another frame. If | |
| 442 | 2558 the minibuffer does not count, only windows from WINDOW's frame count. |
| 2559 | |
| 444 | 2560 By default, only the windows in the selected frame are considered. |
| 2561 The optional argument WHICH-FRAMES changes this behavior: | |
| 2562 WHICH-FRAMES = `visible' means search windows on all visible frames. | |
| 448 | 2563 WHICH-FRAMES = 0 means search windows on all visible and iconified frames. |
| 444 | 2564 WHICH-FRAMES = t means search windows on all frames including invisible frames. |
| 2565 WHICH-FRAMES = a frame means search only windows on that frame. | |
| 2566 Anything else means restrict to the selected frame. | |
| 2567 | |
| 2568 The optional fourth argument WHICH-DEVICES further clarifies on which | |
| 2569 devices to search for frames as specified by WHICH-FRAMES. This value | |
| 2570 is only meaningful if WHICH-FRAMES is non-nil. | |
| 2571 If nil or omitted, search all devices on the selected console. | |
| 2572 If a device, only search that device. | |
| 2573 If a console, search all devices on that console. | |
| 2574 If a device type, search all devices of that type. | |
| 2575 If `window-system', search all window-system devices. | |
| 2576 Any other non-nil value means search all devices. | |
| 2577 | |
| 2578 If you use consistent values for MINIBUF, WHICH-FRAMES, and WHICH-DEVICES, | |
| 2579 you can use `previous-window' to iterate through the entire cycle of | |
| 2580 acceptable windows, eventually ending up back at the window you started with. | |
| 428 | 2581 `next-window' traverses the same cycle, in the reverse order. |
| 2582 */ | |
| 444 | 2583 (window, minibuf, which_frames, devices)) |
| 428 | 2584 { |
| 2585 Lisp_Object tem; | |
| 2586 Lisp_Object start_window; | |
| 2587 | |
| 2588 if (NILP (window)) | |
| 2589 window = Fselected_window (Qnil); | |
| 2590 else | |
| 2591 CHECK_LIVE_WINDOW (window); | |
| 2592 | |
| 2593 start_window = window; | |
| 2594 | |
| 2595 /* minibuf == nil may or may not include minibuffers. | |
| 2596 Decide if it does. */ | |
| 2597 if (NILP (minibuf)) | |
| 2598 minibuf = (minibuf_level ? minibuf_window : Qlambda); | |
| 2599 else if (! EQ (minibuf, Qt)) | |
| 2600 minibuf = Qlambda; | |
| 442 | 2601 /* Now `minibuf' is one of: |
| 2602 t => count all minibuffer windows | |
| 2603 lambda => count none of them | |
| 428 | 2604 or a specific minibuffer window (the active one) to count. */ |
| 2605 | |
| 444 | 2606 /* which_frames == nil doesn't specify which frames to include. |
| 428 | 2607 Decide which frames it includes. */ |
| 444 | 2608 if (NILP (which_frames)) |
| 2609 which_frames = (! EQ (minibuf, Qlambda) | |
| 428 | 2610 ? (FRAME_MINIBUF_WINDOW |
| 2611 (XFRAME | |
| 2612 (WINDOW_FRAME | |
| 2613 (XWINDOW (window))))) | |
| 2614 : Qnil); | |
| 444 | 2615 else if (EQ (which_frames, Qvisible)) |
| 428 | 2616 ; |
| 444 | 2617 else if (ZEROP (which_frames)) |
| 428 | 2618 ; |
| 444 | 2619 else if (FRAMEP (which_frames) && ! EQ (which_frames, Fwindow_frame (window))) |
| 2620 /* If which_frames is a frame and window arg isn't on that frame, just | |
| 428 | 2621 return the first window on the frame. */ |
| 444 | 2622 return frame_first_window (XFRAME (which_frames)); |
| 2623 else if (! EQ (which_frames, Qt)) | |
| 2624 which_frames = Qnil; | |
| 2625 /* Now `which_frames' is one of: | |
| 442 | 2626 t => search all frames |
| 2627 nil => search just the current frame | |
| 2628 visible => search just visible frames | |
| 2629 0 => search visible and iconified frames | |
| 2630 a window => search the frame that window belongs to. */ | |
| 428 | 2631 |
| 2632 /* Do this loop at least once, to get the next window, and perhaps | |
| 2633 again, if we hit the minibuffer and that is not acceptable. */ | |
| 2634 do | |
| 2635 { | |
| 2636 /* Find a window that actually has a next one. This loop | |
| 2637 climbs up the tree. */ | |
| 2638 while (tem = XWINDOW (window)->prev, NILP (tem)) | |
| 2639 if (tem = XWINDOW (window)->parent, !NILP (tem)) | |
| 2640 window = tem; | |
| 2641 else /* window must be minibuffer window now */ | |
| 2642 { | |
| 2643 /* We have found the top window on the frame. | |
| 2644 Which frames are acceptable? */ | |
| 2645 tem = WINDOW_FRAME (XWINDOW (window)); | |
| 2646 | |
| 444 | 2647 if (! NILP (which_frames)) |
| 442 | 2648 /* It's actually important that we use previous_frame here, |
| 428 | 2649 rather than next_frame. All the windows acceptable |
| 2650 according to the given parameters should form a ring; | |
| 2651 Fnext_window and Fprevious_window should go back and | |
| 2652 forth around the ring. If we use next_frame here, | |
| 2653 then Fnext_window and Fprevious_window take different | |
| 2654 paths through the set of acceptable windows. | |
| 2655 window_loop assumes that these `ring' requirement are | |
| 2656 met. */ | |
| 2657 { | |
| 442 | 2658 Lisp_Object tem1 = tem; |
| 444 | 2659 tem = previous_frame (tem, which_frames, devices); |
| 428 | 2660 /* In the case where the minibuffer is active, |
| 2661 and we include its frame as well as the selected one, | |
| 2662 next_frame may get stuck in that frame. | |
| 2663 If that happens, go back to the selected frame | |
| 2664 so we can complete the cycle. */ | |
| 2665 if (EQ (tem, tem1)) | |
| 793 | 2666 tem = wrap_frame (selected_frame ()); |
| 428 | 2667 } |
| 2668 | |
| 2669 /* If this frame has a minibuffer, find that window first, | |
| 2670 because it is conceptually the last window in that frame. */ | |
| 2671 if (FRAME_HAS_MINIBUF_P (XFRAME (tem))) | |
| 2672 tem = FRAME_MINIBUF_WINDOW (XFRAME (tem)); | |
| 2673 else | |
| 2674 tem = FRAME_ROOT_WINDOW (XFRAME (tem)); | |
| 2675 | |
| 2676 break; | |
| 2677 } | |
| 2678 | |
| 2679 window = tem; | |
| 2680 | |
| 2681 /* If we're in a combination window, find its first child and | |
| 2682 recurse on that. Otherwise, we've found the window we want. */ | |
| 2683 while (1) | |
| 2684 { | |
| 2685 if (!NILP (XWINDOW (window)->hchild)) | |
| 2686 window = XWINDOW (window)->hchild; | |
| 2687 else if (!NILP (XWINDOW (window)->vchild)) | |
| 2688 window = XWINDOW (window)->vchild; | |
| 2689 else break; | |
| 2690 while (tem = XWINDOW (window)->next, !NILP (tem)) | |
| 2691 window = tem; | |
| 2692 } | |
| 2693 } | |
| 2694 /* Which windows are acceptable? | |
| 2695 Exit the loop and accept this window if | |
| 2696 this isn't a minibuffer window, | |
| 2697 or we're accepting all minibuffer windows, | |
| 2698 or this is the active minibuffer and we are accepting that one, or | |
| 2699 we've come all the way around and we're back at the original window. */ | |
| 2700 while (MINI_WINDOW_P (XWINDOW (window)) | |
| 2701 && ! EQ (minibuf, Qt) | |
| 2702 && ! EQ (minibuf, window) | |
| 2703 && ! EQ (window, start_window)); | |
| 2704 | |
| 2705 return window; | |
| 2706 } | |
| 2707 | |
| 2708 DEFUN ("next-vertical-window", Fnext_vertical_window, 0, 1, 0, /* | |
| 2709 Return the next window which is vertically after WINDOW. | |
| 2710 */ | |
| 2711 (window)) | |
| 2712 { | |
| 2713 Lisp_Object root; | |
| 2714 struct window *w = decode_window (window); | |
| 793 | 2715 window = wrap_window (w); |
| 428 | 2716 |
| 2717 if (MINI_WINDOW_P (XWINDOW (window))) | |
| 2718 return Qnil; | |
| 2719 | |
| 2720 root = FRAME_ROOT_WINDOW (XFRAME (WINDOW_FRAME (XWINDOW (window)))); | |
| 2721 | |
| 2722 if (EQ (window, root)) | |
| 2723 { | |
| 2724 while (1) | |
| 2725 if (!NILP (XWINDOW (window)->hchild)) | |
| 2726 window = XWINDOW (window)->hchild; | |
| 2727 else if (!NILP (XWINDOW (window)->vchild)) | |
| 2728 window = XWINDOW (window)->vchild; | |
| 2729 else | |
| 2730 return window; | |
| 2731 } | |
| 2732 | |
| 2733 do | |
| 2734 { | |
| 2735 if (!NILP (XWINDOW (window)->parent) && | |
| 2736 !NILP (XWINDOW (XWINDOW (window)->parent)->vchild)) | |
| 2737 { | |
| 2738 if (!NILP (XWINDOW (window)->next)) | |
| 2739 return XWINDOW (window)->next; | |
| 2740 else | |
| 2741 window = XWINDOW (window)->parent; | |
| 2742 } | |
| 2743 else | |
| 2744 window = XWINDOW (window)->parent; | |
| 2745 } | |
| 2746 while (!EQ (window, root)); | |
| 2747 | |
| 2748 while (1) | |
| 2749 if (!NILP (XWINDOW (window)->hchild)) | |
| 2750 window = XWINDOW (window)->hchild; | |
| 2751 else if (!NILP (XWINDOW (window)->vchild)) | |
| 2752 window = XWINDOW (window)->vchild; | |
| 2753 else | |
| 2754 return window; | |
| 2755 } | |
| 2756 | |
| 2757 DEFUN ("other-window", Fother_window, 1, 3, "p", /* | |
| 444 | 2758 Select the COUNT'th different window on this frame. |
| 428 | 2759 All windows on current frame are arranged in a cyclic order. |
| 444 | 2760 This command selects the window COUNT steps away in that order. |
| 2761 A negative COUNT moves in the opposite order. | |
| 2762 | |
| 2763 By default, only the windows in the selected frame are considered. | |
| 2764 The optional argument WHICH-FRAMES changes this behavior: | |
| 2765 WHICH-FRAMES = `visible' means search windows on all visible frames. | |
| 448 | 2766 WHICH-FRAMES = 0 means search windows on all visible and iconified frames. |
| 444 | 2767 WHICH-FRAMES = t means search windows on all frames including invisible frames. |
| 2768 WHICH-FRAMES = a frame means search only windows on that frame. | |
| 2769 Anything else means restrict to the selected frame. | |
| 2770 | |
| 2771 The optional argument WHICH-DEVICES further clarifies on which devices | |
| 2772 to search for frames as specified by WHICH-FRAMES. This value is only | |
| 2773 meaningful if WHICH-FRAMES is non-nil. | |
| 2774 If nil or omitted, search all devices on the selected console. | |
| 2775 If a device, only search that device. | |
| 2776 If a console, search all devices on that console. | |
| 2777 If a device type, search all devices of that type. | |
| 2778 If `window-system', search all window-system devices. | |
| 2779 Any other non-nil value means search all devices. | |
| 428 | 2780 */ |
| 444 | 2781 (count, which_frames, which_devices)) |
| 428 | 2782 { |
| 2783 int i; | |
| 2784 Lisp_Object w; | |
| 2785 | |
|
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Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
2786 CHECK_FIXNUM (count); |
| 428 | 2787 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
|
2788 i = XFIXNUM (count); |
| 428 | 2789 |
| 2790 while (i > 0) | |
| 2791 { | |
| 444 | 2792 w = Fnext_window (w, Qnil, which_frames, which_devices); |
| 428 | 2793 i--; |
| 2794 } | |
| 2795 while (i < 0) | |
| 2796 { | |
| 444 | 2797 w = Fprevious_window (w, Qnil, which_frames, which_devices); |
| 428 | 2798 i++; |
| 2799 } | |
| 2800 Fselect_window (w, Qnil); | |
| 2801 return Qnil; | |
| 2802 } | |
| 2803 | |
| 2804 | |
| 2805 /* Look at all windows, performing an operation specified by TYPE | |
| 2806 with argument OBJ. | |
| 2807 | |
| 2808 If FRAMES is Qt, look at all frames, if Qnil, look at just the selected | |
| 2809 frame. If FRAMES is a frame, just look at windows on that frame. | |
| 2810 If MINI is non-zero, perform the operation on minibuffer windows too. | |
| 2811 */ | |
| 2812 | |
| 2813 enum window_loop | |
| 2814 { | |
| 2815 WINDOW_LOOP_UNUSED, | |
| 2816 GET_BUFFER_WINDOW, /* Arg is buffer */ | |
| 2817 GET_LRU_WINDOW, /* Arg is t for full-width windows only */ | |
| 2818 DELETE_OTHER_WINDOWS, /* Arg is window not to delete */ | |
| 2819 DELETE_BUFFER_WINDOWS, /* Arg is buffer */ | |
| 2820 GET_LARGEST_WINDOW, | |
| 2821 GET_BUFFER_WINDOW_COUNT, /* Arg is buffer */ | |
| 2822 GET_BUFFER_MRU_WINDOW /* Arg is buffer */ | |
| 2823 }; | |
| 2824 | |
| 2825 static Lisp_Object | |
| 2826 window_loop (enum window_loop type, | |
| 2827 Lisp_Object obj, | |
| 2828 int mini, | |
| 444 | 2829 Lisp_Object which_frames, |
| 428 | 2830 int dedicated_too, |
| 444 | 2831 Lisp_Object which_devices) |
| 428 | 2832 { |
| 448 | 2833 /* This function can GC if type == DELETE_BUFFER_WINDOWS */ |
| 428 | 2834 Lisp_Object w; |
| 2835 Lisp_Object best_window = Qnil; | |
| 2836 Lisp_Object next_window; | |
| 2837 Lisp_Object last_window; | |
| 2838 struct frame *frame; | |
| 2839 Lisp_Object frame_arg = Qt; | |
| 2840 int count = 0; /* for GET_BUFFER_WINDOW_COUNT */ | |
| 2841 /* #### I think the change of "precomputing" last_window and next_window | |
| 2842 * #### catch the lossage this is meant(?) to punt on... | |
| 2843 */ | |
| 2844 int lose_lose = 0; | |
| 2845 Lisp_Object devcons, concons; | |
| 2846 | |
| 2847 /* If we're only looping through windows on a particular frame, | |
| 2848 FRAME points to that frame. If we're looping through windows | |
| 2849 on all frames, FRAME is 0. */ | |
| 444 | 2850 if (FRAMEP (which_frames)) |
| 2851 frame = XFRAME (which_frames); | |
| 2852 else if (NILP (which_frames)) | |
| 428 | 2853 frame = selected_frame (); |
| 2854 else | |
| 2855 frame = 0; | |
| 442 | 2856 |
| 2857 /* FRAME_ARG is Qlambda to stick to one frame, | |
| 2858 Qvisible to consider all visible frames, | |
| 2859 or Qt otherwise. */ | |
| 428 | 2860 if (frame) |
| 2861 frame_arg = Qlambda; | |
| 444 | 2862 else if (ZEROP (which_frames)) |
| 2863 frame_arg = which_frames; | |
| 2864 else if (EQ (which_frames, Qvisible)) | |
| 2865 frame_arg = which_frames; | |
| 428 | 2866 |
| 2867 DEVICE_LOOP_NO_BREAK (devcons, concons) | |
| 2868 { | |
| 2869 Lisp_Object device = XCAR (devcons); | |
| 2870 Lisp_Object the_frame; | |
| 2871 | |
| 2872 if (frame) | |
| 793 | 2873 the_frame = wrap_frame (frame); |
| 428 | 2874 else |
| 2875 the_frame = DEVICE_SELECTED_FRAME (XDEVICE (device)); | |
| 2876 | |
| 2877 if (NILP (the_frame)) | |
| 2878 continue; | |
| 2879 | |
| 444 | 2880 if (!device_matches_device_spec (device, |
| 2881 NILP (which_devices) ? | |
| 2882 FRAME_CONSOLE (XFRAME (the_frame)) : | |
| 2883 which_devices)) | |
| 428 | 2884 continue; |
| 2885 | |
| 2886 /* Pick a window to start with. */ | |
| 2887 if (WINDOWP (obj)) | |
| 2888 w = obj; | |
| 2889 else | |
| 2890 w = FRAME_SELECTED_WINDOW (XFRAME (the_frame)); | |
| 2891 | |
| 2892 /* Figure out the last window we're going to mess with. Since | |
| 2893 Fnext_window, given the same options, is guaranteed to go in a | |
| 2894 ring, we can just use Fprevious_window to find the last one. | |
| 2895 | |
| 2896 We can't just wait until we hit the first window again, | |
| 2897 because it might be deleted. */ | |
| 2898 | |
| 707 | 2899 last_window = Fprevious_window (w, mini ? Qt : Qnil, frame_arg, device); |
| 428 | 2900 |
| 2901 best_window = Qnil; | |
| 2902 for (;;) | |
| 2903 { | |
| 2904 struct window *p = XWINDOW (w); | |
| 2905 | |
| 2906 /* Pick the next window now, since some operations will delete | |
| 2907 the current window. */ | |
| 442 | 2908 next_window = Fnext_window (w, mini ? Qt : Qnil, frame_arg, device); |
| 428 | 2909 |
| 2910 /* #### Still needed ?? */ | |
| 2911 /* Given the outstanding quality of the rest of this code, | |
| 2912 I feel no shame about putting this piece of shit in. */ | |
| 2913 if (++lose_lose >= 500) | |
| 707 | 2914 { |
| 2500 | 2915 /* Call to ABORT() added by Darryl Okahata (16 Nov. 2001), |
| 707 | 2916 at Ben's request, to catch any remaining bugs. |
| 2917 | |
| 2918 If you find that XEmacs is aborting here, and you | |
| 2919 need to be up and running ASAP, it should be safe to | |
| 2500 | 2920 comment out the following ABORT(), as long as you |
| 707 | 2921 leave the "break;" alone. */ |
| 2500 | 2922 ABORT(); |
| 707 | 2923 break; /* <--- KEEP THIS HERE! Do not delete! */ |
| 2924 } | |
| 428 | 2925 |
| 2926 /* Note that we do not pay attention here to whether | |
| 2927 the frame is visible, since Fnext_window skips non-visible frames | |
| 2928 if that is desired, under the control of frame_arg. */ | |
| 2929 if (! MINI_WINDOW_P (p) | |
| 2930 || (mini && minibuf_level > 0)) | |
| 2931 switch (type) | |
| 2932 { | |
| 2933 case GET_BUFFER_WINDOW: | |
| 2934 { | |
| 2935 if (XBUFFER (p->buffer) == XBUFFER (obj)) | |
| 2936 return w; | |
| 2937 break; | |
| 2938 } | |
| 2939 | |
| 2940 case GET_BUFFER_WINDOW_COUNT: | |
| 2941 { | |
| 2942 if (XBUFFER (p->buffer) == XBUFFER (obj)) | |
| 2943 count++; | |
| 2944 break; | |
| 2945 } | |
| 2946 | |
| 2947 case GET_LRU_WINDOW: | |
| 2948 { | |
| 2949 /* t as arg means consider only full-width windows */ | |
| 2950 if (!NILP (obj) | |
| 2951 && !window_full_width_p (p)) | |
| 2952 break; | |
| 2953 /* Ignore dedicated windows and minibuffers. */ | |
| 2954 if (MINI_WINDOW_P (p) | |
| 2955 || (dedicated_too ? 0 : !NILP (p->dedicated))) | |
| 2956 break; | |
| 2957 if (NILP (best_window) | |
|
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56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
2958 || (XFIXNUM (XWINDOW (best_window)->use_time) |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
2959 > XFIXNUM (p->use_time))) |
| 428 | 2960 best_window = w; |
| 2961 break; | |
| 2962 } | |
| 2963 | |
| 2964 case GET_BUFFER_MRU_WINDOW: | |
| 2965 { | |
| 2966 /* #### what about the first check in GET_LRU_WINDOW? */ | |
| 2967 /* Ignore dedicated windows and minibuffers. */ | |
| 2968 if (MINI_WINDOW_P (p) | |
| 2969 || (dedicated_too ? 0 : !NILP (p->dedicated))) | |
| 2970 break; | |
| 2971 | |
| 2972 if (XBUFFER (p->buffer) == XBUFFER (obj)) | |
| 2973 { | |
| 2974 if (NILP (best_window) | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
2975 || (XFIXNUM (XWINDOW (best_window)->use_time) |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
2976 < XFIXNUM (p->use_time))) |
| 428 | 2977 best_window = w; |
| 2978 } | |
| 2979 break; | |
| 2980 } | |
| 2981 | |
| 2982 case DELETE_OTHER_WINDOWS: | |
| 2983 { | |
| 2984 /* Don't delete the last window on a frame; this can | |
| 2985 happen when the minibuffer is selected, and would | |
| 2986 cause the frame to be deleted. */ | |
| 2987 if (p != XWINDOW (obj) && !TOP_LEVEL_WINDOW_P (XWINDOW (w))) | |
| 2988 Fdelete_window (w, Qnil); | |
| 2989 break; | |
| 2990 } | |
| 2991 | |
| 2992 case DELETE_BUFFER_WINDOWS: | |
| 2993 { | |
| 2994 if (EQ (p->buffer, obj)) | |
| 2995 { | |
| 2996 struct frame *f = XFRAME (WINDOW_FRAME (p)); | |
| 2997 | |
| 2998 /* If this window is dedicated, and in a frame | |
| 2999 of its own, kill the frame. */ | |
| 3000 if (EQ (w, FRAME_ROOT_WINDOW (f)) | |
| 3001 && !NILP (p->dedicated) | |
| 1979 | 3002 && (allow_deletion_of_last_visible_frame |
| 3003 || other_visible_frames (f))) | |
| 428 | 3004 { |
| 3005 /* Skip the other windows on this frame. | |
| 3006 There might be one, the minibuffer! */ | |
| 3007 if (! EQ (w, last_window)) | |
| 3008 while (f == XFRAME (WINDOW_FRAME | |
| 3009 (XWINDOW (next_window)))) | |
| 3010 { | |
| 3011 /* As we go, check for the end of the | |
| 3012 loop. We mustn't start going | |
| 3013 around a second time. */ | |
| 3014 if (EQ (next_window, last_window)) | |
| 3015 { | |
| 3016 last_window = w; | |
| 3017 break; | |
| 3018 } | |
| 3019 next_window = Fnext_window (next_window, | |
| 3020 mini ? Qt : Qnil, | |
| 3021 frame_arg, Qt); | |
| 3022 } | |
| 3023 /* Now we can safely delete the frame. */ | |
| 3024 Fdelete_frame (WINDOW_FRAME (p), Qnil); | |
| 3025 } | |
| 3026 else | |
| 3027 /* If we're deleting the buffer displayed in | |
| 3028 the only window on the frame, find a new | |
| 3029 buffer to display there. */ | |
| 3030 if (NILP (p->parent)) | |
| 3031 { | |
| 3032 Lisp_Object new_buffer; | |
| 3033 new_buffer = Fother_buffer (obj, Qnil, Qnil); | |
| 3034 if (NILP (new_buffer)) | |
| 3035 new_buffer = Fget_buffer_create (QSscratch); | |
| 440 | 3036 Fset_window_buffer (w, new_buffer, Qnil); |
| 428 | 3037 if (EQ (w, Fselected_window (Qnil))) |
| 3038 Fset_buffer (p->buffer); | |
| 3039 } | |
| 3040 else | |
| 3041 Fdelete_window (w, Qnil); | |
| 3042 } | |
| 3043 break; | |
| 3044 } | |
| 3045 | |
| 3046 case GET_LARGEST_WINDOW: | |
| 3047 { | |
| 3048 /* Ignore dedicated windows and minibuffers. */ | |
| 3049 if (MINI_WINDOW_P (p) | |
| 3050 || (dedicated_too ? 0 : !NILP (p->dedicated))) | |
| 3051 break; | |
| 3052 { | |
| 3053 /* write the check as follows to avoid tripping | |
| 3054 error_check_window() --ben */ | |
| 3055 struct window *b = NILP (best_window) ? 0 : | |
| 3056 XWINDOW (best_window); | |
| 3057 if (NILP (best_window) | |
| 3058 || ((WINDOW_HEIGHT (p) * WINDOW_WIDTH (p)) | |
| 3059 > (WINDOW_HEIGHT (b) * WINDOW_WIDTH (b)))) | |
| 3060 best_window = w; | |
| 3061 } | |
| 3062 break; | |
| 3063 } | |
| 3064 | |
| 3065 default: | |
| 2500 | 3066 ABORT (); |
| 428 | 3067 } |
| 3068 | |
| 3069 if (EQ (w, last_window)) | |
| 3070 break; | |
| 3071 | |
| 3072 w = next_window; | |
| 3073 } | |
| 3074 } | |
| 3075 | |
|
5581
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
3076 return type == GET_BUFFER_WINDOW_COUNT ? make_fixnum (count) : best_window; |
| 428 | 3077 } |
| 3078 | |
| 3079 #if 0 /* not currently used */ | |
| 3080 | |
| 3081 int | |
| 3082 buffer_window_count (struct buffer *b, struct frame *f) | |
| 3083 { | |
| 3084 Lisp_Object buffer, frame; | |
| 3085 | |
| 793 | 3086 frame = wrap_frame (f); |
| 3087 buffer = wrap_buffer (b); | |
| 428 | 3088 |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
3089 return XFIXNUM (window_loop (GET_BUFFER_WINDOW_COUNT, buffer, 0, frame, 1, |
| 428 | 3090 Qnil)); |
| 3091 } | |
| 3092 | |
| 3093 int | |
| 3094 buffer_window_mru (struct window *w) | |
| 3095 { | |
| 3096 Lisp_Object window = | |
| 3097 window_loop (GET_BUFFER_MRU_WINDOW, w->buffer, 0, w->frame, 1, Qnil); | |
| 3098 | |
| 3099 if (NILP (window)) | |
| 3100 return 0; | |
| 3101 else if (XWINDOW (window) == w) | |
| 3102 return 1; | |
| 3103 else | |
| 3104 return 0; | |
| 3105 } | |
| 3106 | |
| 3107 #endif | |
| 3108 | |
| 3109 | |
| 3110 DEFUN ("get-lru-window", Fget_lru_window, 0, 2, 0, /* | |
| 3111 Return the window least recently selected or used for display. | |
| 444 | 3112 |
| 3113 By default, only the windows in the selected frame are considered. | |
| 3114 The optional argument WHICH-FRAMES changes this behavior: | |
| 3115 If optional argument WHICH-FRAMES is `visible', search all visible frames. | |
| 3116 If WHICH-FRAMES is 0, search all visible and iconified frames. | |
| 3117 If WHICH-FRAMES is t, search all frames. | |
| 3118 If WHICH-FRAMES is nil, search only the selected frame. | |
| 3119 If WHICH-FRAMES is a frame, search only that frame. | |
| 3120 | |
| 3121 The optional argument WHICH-DEVICES further clarifies on which devices | |
| 3122 to search for frames as specified by WHICH-FRAMES. This value is only | |
| 3123 meaningful if WHICH-FRAMES is non-nil. | |
| 3124 If nil or omitted, search all devices on the selected console. | |
| 3125 If a device, only search that device. | |
| 3126 If a console, search all devices on that console. | |
| 3127 If a device type, search all devices of that type. | |
| 3128 If `window-system', search all devices on window-system consoles. | |
| 3129 Any other non-nil value means search all devices. | |
| 428 | 3130 */ |
| 444 | 3131 (which_frames, which_devices)) |
| 428 | 3132 { |
| 3133 Lisp_Object w; | |
| 3134 /* First try for a non-dedicated window that is full-width */ | |
| 444 | 3135 w = window_loop (GET_LRU_WINDOW, Qt, 0, which_frames, 0, which_devices); |
| 428 | 3136 if (!NILP (w) && !EQ (w, Fselected_window (Qnil))) |
| 3137 return w; | |
| 3138 | |
| 3139 /* Then try for any non-dedicated window */ | |
| 444 | 3140 w = window_loop (GET_LRU_WINDOW, Qnil, 0, which_frames, 0, which_devices); |
| 428 | 3141 if (!NILP (w) && !EQ (w, Fselected_window (Qnil))) |
| 3142 return w; | |
| 3143 | |
| 3144 #if 0 | |
| 3145 /* FSFmacs never returns a dedicated window here. If we do, | |
| 3146 it makes `display-buffer' not work right. #### All of this | |
| 3147 shit is so disgusting and awful that it needs to be rethought | |
| 3148 from scratch. */ | |
| 3149 /* then try for a dedicated window that is full-width */ | |
| 444 | 3150 w = window_loop (GET_LRU_WINDOW, Qt, 0, which_frames, 1, which_devices); |
| 428 | 3151 if (!NILP (w) && !EQ (w, Fselected_window (Qnil))) |
| 3152 return w; | |
| 3153 | |
| 3154 /* If none of them, then all windows, dedicated or not. */ | |
| 444 | 3155 w = window_loop (GET_LRU_WINDOW, Qnil, 0, which_frames, 1, which_devices); |
| 428 | 3156 |
| 3157 /* At this point we damn well better have found something. */ | |
|
5050
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Fix quick-build, use asserts() in place of ABORT()
Ben Wing <ben@xemacs.org>
parents:
4967
diff
changeset
|
3158 assert (!NILP (w)); |
| 428 | 3159 #endif |
| 3160 | |
| 3161 return w; | |
| 3162 } | |
| 3163 | |
| 3164 DEFUN ("get-largest-window", Fget_largest_window, 0, 2, 0, /* | |
| 3165 Return the window largest in area. | |
| 444 | 3166 |
| 3167 By default, only the windows in the selected frame are considered. | |
| 3168 The optional argument WHICH-FRAMES changes this behavior: | |
| 3169 If optional argument WHICH-FRAMES is `visible', search all visible frames. | |
| 3170 If WHICH-FRAMES is 0, search all visible and iconified frames. | |
| 3171 If WHICH-FRAMES is t, search all frames. | |
| 3172 If WHICH-FRAMES is nil, search only the selected frame. | |
| 3173 If WHICH-FRAMES is a frame, search only that frame. | |
| 3174 | |
| 3175 The optional argument WHICH-DEVICES further clarifies on which devices | |
| 3176 to search for frames as specified by WHICH-FRAMES. This value is only | |
| 3177 meaningful if WHICH-FRAMES is non-nil. | |
| 3178 If nil or omitted, search all devices on the selected console. | |
| 3179 If a device, only search that device. | |
| 3180 If a console, search all devices on that console. | |
| 3181 If a device type, search all devices of that type. | |
| 3182 If `window-system', search all devices on window-system consoles. | |
| 3183 Any other non-nil value means search all devices. | |
| 428 | 3184 */ |
| 444 | 3185 (which_frames, which_devices)) |
| 428 | 3186 { |
| 3187 /* Don't search dedicated windows because FSFmacs doesn't. | |
| 3188 This stuff is all black magic so don't try to apply common | |
| 3189 sense to it. */ | |
| 444 | 3190 return window_loop (GET_LARGEST_WINDOW, Qnil, 0, |
| 3191 which_frames, 0, which_devices); | |
| 428 | 3192 } |
| 3193 | |
| 3194 DEFUN ("get-buffer-window", Fget_buffer_window, 1, 3, 0, /* | |
| 3195 Return a window currently displaying BUFFER, or nil if none. | |
| 444 | 3196 |
| 3197 By default, only the windows in the selected frame are considered. | |
| 3198 The optional argument WHICH-FRAMES changes this behavior: | |
| 3199 If optional argument WHICH-FRAMES is `visible', search all visible frames. | |
| 3200 If WHICH-FRAMES is 0, search all visible and iconified frames. | |
| 3201 If WHICH-FRAMES is t, search all frames. | |
| 3202 If WHICH-FRAMES is nil, search only the selected frame. | |
| 3203 If WHICH-FRAMES is a frame, search only that frame. | |
| 3204 | |
| 3205 The optional argument WHICH-DEVICES further clarifies on which devices | |
| 3206 to search for frames as specified by WHICH-FRAMES. This value is only | |
| 3207 meaningful if WHICH-FRAMES is non-nil. | |
| 3208 If nil or omitted, search all devices on the selected console. | |
| 3209 If a device, only search that device. | |
| 3210 If a console, search all devices on that console. | |
| 3211 If a device type, search all devices of that type. | |
| 3212 If `window-system', search all devices on window-system consoles. | |
| 3213 Any other non-nil value means search all devices. | |
| 428 | 3214 */ |
| 444 | 3215 (buffer, which_frames, which_devices)) |
| 428 | 3216 { |
| 3217 buffer = Fget_buffer (buffer); | |
| 3218 if (BUFFERP (buffer)) | |
| 3219 /* Search dedicated windows too. (Doesn't matter here anyway.) */ | |
| 444 | 3220 return window_loop (GET_BUFFER_WINDOW, buffer, 1, |
| 3221 which_frames, 1, which_devices); | |
| 428 | 3222 else |
| 3223 return Qnil; | |
| 3224 } | |
| 3225 | |
| 3226 /* These functions used to be `buffer-left-margin-pixel-width', etc. | |
| 3227 but there is no sensible way to implement those functions, since | |
| 3228 you can't in general derive a window from a buffer. */ | |
| 3229 | |
| 3230 DEFUN ("window-left-margin-pixel-width", Fwindow_left_margin_pixel_width, | |
| 3231 0, 1, 0, /* | |
| 3232 Return the width in pixels of the left outside margin of window WINDOW. | |
| 3233 If WINDOW is nil, the selected window is assumed. | |
| 3234 */ | |
| 3235 (window)) | |
| 3236 { | |
|
5581
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
3237 return make_fixnum (window_left_margin_width (decode_window (window))); |
| 428 | 3238 } |
| 3239 | |
| 3240 DEFUN ("window-right-margin-pixel-width", Fwindow_right_margin_pixel_width, | |
| 3241 0, 1, 0, /* | |
| 3242 Return the width in pixels of the right outside margin of window WINDOW. | |
| 3243 If WINDOW is nil, the selected window is assumed. | |
| 3244 */ | |
| 3245 (window)) | |
| 3246 { | |
|
5581
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
3247 return make_fixnum (window_right_margin_width (decode_window (window))); |
| 428 | 3248 } |
| 3249 | |
| 3250 DEFUN ("delete-other-windows", Fdelete_other_windows, 0, 1, "", /* | |
| 3251 Make WINDOW (or the selected window) fill its frame. | |
| 3252 Only the frame WINDOW is on is affected. | |
| 3253 This function tries to reduce display jumps | |
| 3254 by keeping the text previously visible in WINDOW | |
| 3255 in the same place on the frame. Doing this depends on | |
| 3256 the value of (window-start WINDOW), so if calling this function | |
| 3257 in a program gives strange scrolling, make sure the window-start | |
| 3258 value is reasonable when this function is called. | |
| 3259 */ | |
| 3260 (window)) | |
| 3261 { | |
| 3262 struct window *w = decode_window (window); | |
| 1207 | 3263 struct buffer *b; |
| 665 | 3264 Charbpos start_pos; |
| 428 | 3265 int old_top = WINDOW_TOP (w); |
| 3266 | |
| 1207 | 3267 if (NILP (WINDOW_BUFFER (w))) |
| 3268 invalid_operation ("Can't delete other windows of combination", window); | |
| 3269 | |
| 793 | 3270 window = wrap_window (w); |
| 1207 | 3271 b = XBUFFER (WINDOW_BUFFER (w)); |
| 428 | 3272 |
| 3273 if (MINI_WINDOW_P (w) && old_top > 0) | |
| 563 | 3274 invalid_operation ("Can't expand minibuffer to full frame", Qunbound); |
| 428 | 3275 |
| 3276 /* Ignore dedicated windows. */ | |
| 3277 window_loop (DELETE_OTHER_WINDOWS, window, 0, w->frame, 0, Qnil); | |
| 3278 | |
| 3279 start_pos = marker_position (w->start[CURRENT_DISP]); | |
| 3280 | |
| 3281 /* Try to minimize scrolling, by setting the window start to the | |
| 3282 point which will cause the text at the old window start to be at | |
| 3283 the same place on the frame. But don't try to do this if the | |
| 3284 window start is outside the visible portion (as might happen when | |
| 3285 the display is not current, due to typeahead). */ | |
| 3286 if (start_pos >= BUF_BEGV (b) && start_pos <= BUF_ZV (b) | |
| 3287 && !MINI_WINDOW_P (w)) | |
| 3288 { | |
| 665 | 3289 Charbpos new_start = start_with_line_at_pixpos (w, start_pos, old_top); |
| 428 | 3290 |
| 3291 if (new_start >= BUF_BEGV (b) && new_start <= BUF_ZV (b)) | |
| 3292 { | |
|
5581
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
3293 Fset_marker (w->start[CURRENT_DISP], make_fixnum (new_start), |
| 428 | 3294 w->buffer); |
| 3295 w->start_at_line_beg = beginning_of_line_p (b, new_start); | |
| 3296 } | |
| 3297 /* We need to do this, so that the window-scroll-functions | |
| 3298 get called. */ | |
| 3299 w->force_start = 1; | |
| 3300 } | |
| 3301 | |
| 3302 return Qnil; | |
| 3303 } | |
| 3304 | |
| 3305 DEFUN ("delete-windows-on", Fdelete_windows_on, 1, 3, | |
| 3306 "bDelete windows on (buffer): ", /* | |
| 3307 Delete all windows showing BUFFER. | |
| 444 | 3308 |
| 3309 Optional second argument WHICH-FRAMES controls which frames are affected. | |
| 428 | 3310 If nil or omitted, delete all windows showing BUFFER in any frame. |
| 3311 If t, delete only windows showing BUFFER in the selected frame. | |
| 3312 If `visible', delete all windows showing BUFFER in any visible frame. | |
| 3313 If a frame, delete only windows showing BUFFER in that frame. | |
| 444 | 3314 Warning: WHICH-FRAMES has the same meaning as with `next-window', |
| 3315 except that the meanings of nil and t are reversed. | |
| 3316 | |
| 3317 The optional third argument WHICH-DEVICES further clarifies on which | |
| 3318 devices to search for frames as specified by WHICH-FRAMES. This value | |
| 3319 is only meaningful if WHICH-FRAMES is not t. | |
| 3320 If nil or omitted, search only the selected console. | |
| 3321 If a device, only search that device. | |
| 3322 If a console, search all devices on that console. | |
| 3323 If a device type, search all devices of that type. | |
| 3324 If `window-system', search all devices on a window system. | |
| 3325 Any other non-nil value means search all devices. | |
| 428 | 3326 */ |
| 444 | 3327 (buffer, which_frames, which_devices)) |
| 428 | 3328 { |
| 3329 /* This function can GC */ | |
| 444 | 3330 buffer = Fget_buffer (buffer); |
| 3331 CHECK_BUFFER (buffer); | |
| 3332 | |
| 3333 /* WHICH-FRAMES values t and nil mean the opposite of what | |
| 3334 window_loop expects. */ | |
| 3335 if (EQ (which_frames, Qnil)) | |
| 3336 which_frames = Qt; | |
| 3337 else if (EQ (which_frames, Qt)) | |
| 3338 which_frames = Qnil; | |
| 3339 | |
| 3340 /* Ignore dedicated windows. */ | |
| 3341 window_loop (DELETE_BUFFER_WINDOWS, buffer, 0, | |
| 3342 which_frames, 0, which_devices); | |
| 428 | 3343 return Qnil; |
| 3344 } | |
| 3345 | |
| 448 | 3346 static Lisp_Object |
| 3347 list_windows (struct window *w, Lisp_Object value) | |
| 3348 { | |
| 3349 for (;;) | |
| 3350 { | |
| 3351 if (!NILP (w->hchild)) | |
| 3352 value = list_windows (XWINDOW (w->hchild), value); | |
| 3353 else if (!NILP (w->vchild)) | |
| 3354 value = list_windows (XWINDOW (w->vchild), value); | |
| 3355 else | |
| 3356 { | |
| 793 | 3357 Lisp_Object window = wrap_window (w); |
| 3358 | |
| 448 | 3359 value = Fcons (window, value); |
| 3360 } | |
| 3361 if (NILP (w->next)) | |
| 3362 break; | |
| 3363 w = XWINDOW (w->next); | |
| 3364 } | |
| 3365 return value; | |
| 3366 } | |
| 3367 | |
| 3368 static Lisp_Object | |
| 3369 list_all_windows (Lisp_Object frame_spec, Lisp_Object device_spec) | |
| 3370 { | |
| 3371 Lisp_Object devcons, concons; | |
| 3372 Lisp_Object retval = Qnil; | |
| 3373 | |
| 3374 DEVICE_LOOP_NO_BREAK (devcons, concons) | |
| 3375 { | |
| 3376 Lisp_Object frame_list, the_window; | |
| 3377 Lisp_Object device, tail; | |
| 3378 | |
| 3379 device = XCAR (devcons); | |
| 3380 frame_list = DEVICE_FRAME_LIST (XDEVICE (device)); | |
| 3381 | |
| 3382 LIST_LOOP (tail, frame_list) | |
| 3383 { | |
| 3384 if ((NILP (frame_spec) | |
| 3385 && !EQ (XCAR (tail), DEVICE_SELECTED_FRAME (XDEVICE (device)))) | |
| 3386 || (EQ (frame_spec, Qvisible) | |
| 3387 && !FRAME_VISIBLE_P (XFRAME (XCAR (tail)))) | |
| 3388 || (FRAMEP (frame_spec) | |
| 3389 && !EQ (frame_spec, XCAR (tail))) | |
| 3390 || (!NILP (frame_spec) | |
| 3391 && !device_matches_device_spec (device, | |
| 3392 NILP (device_spec) ? | |
| 3393 Vselected_console : | |
| 3394 device_spec))) | |
| 3395 continue; | |
| 3396 the_window = FRAME_ROOT_WINDOW (XFRAME (XCAR (tail))); | |
| 3397 retval = list_windows (XWINDOW (the_window), retval); | |
| 3398 } | |
| 3399 } | |
| 3400 return Fnreverse (retval); | |
| 3401 } | |
| 3402 | |
| 444 | 3403 DEFUN ("replace-buffer-in-windows", Freplace_buffer_in_windows, 1, 3, |
| 428 | 3404 "bReplace buffer in windows: ", /* |
| 3405 Replace BUFFER with some other buffer in all windows showing it. | |
| 444 | 3406 |
| 3407 Optional second argument WHICH-FRAMES controls which frames are affected. | |
| 3408 If nil or omitted, all frames are affected. | |
| 3409 If t, only the selected frame is affected. | |
| 3410 If `visible', all visible frames are affected. | |
| 3411 If a frame, only that frame is affected. | |
| 3412 Warning: WHICH-FRAMES has the same meaning as with `next-window', | |
| 3413 except that the meanings of nil and t are reversed. | |
| 3414 | |
| 3415 The optional third argument WHICH-DEVICES further clarifies on which | |
| 3416 devices to search for frames as specified by WHICH-FRAMES. This value | |
| 3417 is only meaningful if WHICH-FRAMES is not t. | |
| 3418 If nil or omitted, search only the selected console. | |
| 3419 If a device, only search that device. | |
| 3420 If a console, search all devices on that console. | |
| 3421 If a device type, search all devices of that type. | |
| 3422 If `window-system', search all devices on a window system. | |
| 3423 Any other non-nil value means search all devices. | |
| 428 | 3424 */ |
| 444 | 3425 (buffer, which_frames, which_devices)) |
| 428 | 3426 { |
| 3427 /* This function can GC */ | |
| 448 | 3428 Lisp_Object window_list; |
| 3429 Lisp_Object tail; | |
| 3430 struct gcpro gcpro1, gcpro2; | |
| 3431 | |
| 444 | 3432 if (EQ (which_frames, Qnil)) |
| 3433 which_frames = Qt; | |
| 3434 else if (EQ (which_frames, Qt)) | |
| 3435 which_frames = Qnil; | |
| 448 | 3436 window_list = list_all_windows (which_frames, which_devices); |
| 3437 | |
| 3438 buffer = Fget_buffer (buffer); | |
| 3439 CHECK_BUFFER (buffer); | |
| 3440 | |
| 3441 GCPRO2 (window_list, buffer); | |
| 3442 LIST_LOOP (tail, window_list) | |
| 3443 { | |
| 3444 Lisp_Object window = XCAR (tail); | |
| 3445 if (!MINI_WINDOW_P (XWINDOW (window)) | |
| 3446 && EQ (XWINDOW (window)->buffer, buffer)) | |
| 3447 { | |
| 3448 Lisp_Object another_buffer = Fother_buffer (buffer, Qnil, Qnil); | |
| 3449 Lisp_Object frame = WINDOW_FRAME (XWINDOW (window)); | |
| 3450 if (NILP (another_buffer)) | |
| 3451 another_buffer = Fget_buffer_create (QSscratch); | |
| 3452 if (!NILP (XWINDOW (window)->dedicated) | |
| 3453 && EQ (window, | |
| 3454 FRAME_ROOT_WINDOW (XFRAME (frame))) | |
| 1979 | 3455 && (allow_deletion_of_last_visible_frame |
| 3456 || other_visible_frames (XFRAME (frame)))) | |
| 448 | 3457 { |
| 3458 delete_frame_internal (XFRAME (frame), 0, 0, 0); /* GC */ | |
| 3459 } | |
| 3460 else | |
| 3461 { | |
| 3462 Fset_window_buffer (window, another_buffer, Qnil); | |
| 3463 if (EQ (window, Fselected_window (Qnil))) | |
| 3464 Fset_buffer (XWINDOW (window)->buffer); | |
| 3465 } | |
| 3466 } | |
| 3467 } | |
| 3468 UNGCPRO; | |
| 428 | 3469 return Qnil; |
| 3470 } | |
| 3471 | |
| 3472 /* The smallest acceptable dimensions for a window. Anything smaller | |
| 3473 might crash Emacs. */ | |
| 3474 #define MIN_SAFE_WINDOW_WIDTH (2) | |
| 3475 #define MIN_SAFE_WINDOW_HEIGHT (2) | |
| 3476 | |
| 3477 /* Make sure that window_min_height and window_min_width are | |
| 3478 not too small; if they are, set them to safe minima. */ | |
| 3479 | |
| 3480 static void | |
| 3481 check_min_window_sizes (void) | |
| 3482 { | |
| 3483 /* Smaller values might permit a crash. */ | |
| 3484 if (window_min_width < MIN_SAFE_WINDOW_WIDTH) | |
| 3485 window_min_width = MIN_SAFE_WINDOW_WIDTH; | |
| 3486 if (window_min_height < MIN_SAFE_WINDOW_HEIGHT) | |
| 3487 window_min_height = MIN_SAFE_WINDOW_HEIGHT; | |
| 3488 } | |
| 3489 | |
| 440 | 3490 static int |
| 3491 frame_min_height (struct frame *frame) | |
| 3492 { | |
| 3493 /* For height, we have to see whether the frame has a minibuffer, and | |
| 3494 whether it wants a modeline. */ | |
| 3495 return (FRAME_MINIBUF_ONLY_P (frame) ? MIN_SAFE_WINDOW_HEIGHT - 1 | |
| 3496 : (! FRAME_HAS_MINIBUF_P (frame)) ? MIN_SAFE_WINDOW_HEIGHT | |
| 3497 : 2 * MIN_SAFE_WINDOW_HEIGHT - 1); | |
| 3498 } | |
| 3499 | |
| 3500 /* Return non-zero if both frame sizes are less than or equal to | |
| 3501 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
|
3502 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
|
3503 frame_size_valid_p (struct frame *frame, int cols, int rows) |
| 440 | 3504 { |
| 3505 return (rows >= frame_min_height (frame) | |
| 3506 && cols >= MIN_SAFE_WINDOW_WIDTH); | |
| 3507 } | |
| 3508 | |
| 3509 /* Return non-zero if both frame sizes are less than or equal to | |
| 3510 minimal allowed values. WIDTH and HEIGHT are in pixels */ | |
| 3511 int | |
| 3512 frame_pixsize_valid_p (struct frame *frame, int width, int height) | |
| 3513 { | |
| 3514 int rows, cols; | |
| 5043 | 3515 pixel_to_char_size (frame, width, height, &cols, &rows); |
|
5047
07dcc7000bbf
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Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
3516 return frame_size_valid_p (frame, cols, rows); |
| 440 | 3517 } |
| 3518 | |
| 428 | 3519 /* If *ROWS or *COLS are too small a size for FRAME, set them to the |
| 3520 minimum allowable size. */ | |
| 3521 void | |
|
5047
07dcc7000bbf
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Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
3522 check_frame_size (struct frame *frame, int *cols, int *rows) |
| 428 | 3523 { |
| 440 | 3524 int min_height = frame_min_height (frame); |
| 5043 | 3525 int min_pixwidth, min_pixheight; |
| 3526 int min_geomwidth, min_geomheight; | |
| 3527 | |
| 3528 /* There is no char_to_frame_unit_size(). This can be done with | |
| 3529 frame_conversion_internal(), but that's currently static, and we can | |
| 3530 do it fine with two steps, as follows. */ | |
| 3531 char_to_pixel_size (frame, MIN_SAFE_WINDOW_WIDTH, min_height, | |
| 3532 &min_pixwidth, &min_pixheight); | |
| 3533 pixel_to_frame_unit_size (frame, min_pixwidth, min_pixheight, | |
| 3534 &min_geomwidth, &min_geomheight); | |
| 3535 if (*rows < min_geomheight) | |
| 3536 *rows = min_geomheight; | |
| 3537 if (*cols < min_geomwidth) | |
| 3538 *cols = min_geomwidth; | |
| 428 | 3539 } |
| 3540 | |
| 3541 /* Normally the window is deleted if it gets too small. | |
| 3542 nodelete nonzero means do not do this. | |
| 3543 (The caller should check later and do so if appropriate) */ | |
| 3544 static void | |
| 3545 set_window_pixsize (Lisp_Object window, int new_pixsize, int nodelete, | |
| 3546 int set_height) | |
| 3547 { | |
| 3548 struct window *w = XWINDOW (window); | |
| 3549 struct frame *f = XFRAME (w->frame); | |
| 3550 struct window *c; | |
| 3551 int old_pixsize = (set_height ? WINDOW_HEIGHT (w) : WINDOW_WIDTH (w)); | |
| 3552 Lisp_Object child, minor_kid, major_kid; | |
| 3553 int minsize; | |
| 3554 int line_size; | |
| 3555 int defheight, defwidth; | |
| 3556 | |
|
5047
07dcc7000bbf
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Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
3557 default_face_width_and_height (window, &defwidth, &defheight); |
| 428 | 3558 line_size = (set_height ? defheight : defwidth); |
| 3559 | |
| 3560 check_min_window_sizes (); | |
| 3561 | |
| 3562 minsize = (set_height ? window_min_height : window_min_width); | |
| 3563 minsize *= line_size; | |
| 3564 | |
| 3565 if (!nodelete | |
| 3566 && !TOP_LEVEL_WINDOW_P (w) | |
|
4375
74e0e1131e01
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Mike Sperber <sperber@deinprogramm.de>
parents:
3707
diff
changeset
|
3567 && (new_pixsize + window_modeline_height (w)) < minsize) |
| 428 | 3568 { |
| 3569 Fdelete_window (window, Qnil); | |
| 3570 return; | |
| 3571 } | |
| 3572 | |
| 3573 SET_LAST_MODIFIED (w, 0); | |
| 3574 SET_LAST_FACECHANGE (w); | |
| 3575 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f); /* multiple windows affected */ | |
| 3576 if (set_height) | |
| 3577 { | |
| 3578 WINDOW_HEIGHT (w) = new_pixsize; | |
| 3579 major_kid = w->vchild; | |
| 3580 minor_kid = w->hchild; | |
| 3581 } | |
| 3582 else | |
| 3583 { | |
| 3584 WINDOW_WIDTH (w) = new_pixsize; | |
| 3585 major_kid = w->hchild; | |
| 3586 minor_kid = w->vchild; | |
| 3587 } | |
| 3588 | |
| 3589 if (!NILP (minor_kid)) | |
| 3590 { | |
| 3591 for (child = minor_kid; !NILP (child); child = XWINDOW (child)->next) | |
| 3592 { | |
| 3593 if (set_height) | |
| 3594 WINDOW_TOP (XWINDOW (child)) = WINDOW_TOP (w); | |
| 3595 else | |
| 3596 WINDOW_LEFT (XWINDOW (child)) = WINDOW_LEFT (w); | |
| 3597 | |
| 3598 set_window_pixsize (child, new_pixsize, nodelete, set_height); | |
| 3599 } | |
| 3600 } | |
| 3601 else if (!NILP (major_kid)) | |
| 3602 { | |
| 3603 int last_pos, last_old_pos, pos, old_pos, first; | |
| 3604 int pixel_adj_left = new_pixsize - old_pixsize; | |
| 3605 int div_val = old_pixsize << 1; | |
| 3606 | |
| 3607 /* | |
| 3608 * Previously we bailed out here if there was no size change. | |
| 3609 * (pixel_adj_left == 0) But this broke toolbar updates. If a | |
| 3610 * toolbar appears or disappears, windows may not change size, | |
| 3611 * but their top and left coordinates need to be updated. | |
| 3612 * | |
| 3613 * So we don't bail until after the loop below. | |
| 3614 */ | |
| 3615 | |
| 3616 last_pos = first = (set_height ? WINDOW_TOP (w) : WINDOW_LEFT (w)); | |
| 3617 last_old_pos = 0; | |
| 3618 | |
| 3619 for (child = major_kid; !NILP (child); child = c->next) | |
| 3620 { | |
| 3621 c = XWINDOW (child); | |
| 3622 | |
| 3623 if (set_height) | |
| 3624 { | |
| 3625 old_pos = last_old_pos + WINDOW_HEIGHT (c); | |
| 3626 WINDOW_TOP (c) = last_pos; | |
| 3627 } | |
| 3628 else | |
| 3629 { | |
| 3630 old_pos = last_old_pos + WINDOW_WIDTH (c); | |
| 3631 WINDOW_LEFT (c) = last_pos; | |
| 3632 } | |
| 3633 | |
| 3634 pos = (((old_pos * new_pixsize) << 1) + old_pixsize) / div_val; | |
| 3635 /* All but the last window should have a height which is | |
| 3636 a multiple of the default line height. */ | |
| 3637 if (!NILP (c->next)) | |
|
4446
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3638 { |
|
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3639 /* |
|
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3640 * 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
|
3641 * 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
|
3642 * cancel out actually do cancel out. |
|
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3643 */ |
|
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3644 if (pixel_adj_left < 0) |
|
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3645 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
|
3646 else |
|
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3647 pos = (pos / line_size) * line_size; |
|
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3648 } |
| 428 | 3649 |
| 3650 /* Avoid confusion: don't delete child if it becomes too small */ | |
| 3651 set_window_pixsize (child, pos + first - last_pos, 1, set_height); | |
| 3652 | |
| 3653 last_pos = pos + first; | |
| 3654 last_old_pos = old_pos; | |
| 3655 } | |
| 3656 | |
| 3657 /* Sometimes we may get called with our old size. In that case | |
| 3658 we don't need to do anything else. */ | |
| 3659 if (!pixel_adj_left) | |
| 3660 return; | |
| 3661 | |
| 3662 /* Now delete any children that became too small. */ | |
| 3663 if (!nodelete) | |
| 3664 for (child = major_kid; !NILP (child); child = XWINDOW (child)->next) | |
| 3665 { | |
| 3666 if (set_height) | |
| 3667 set_window_pixheight (child, WINDOW_HEIGHT (XWINDOW (child)), 0); | |
| 3668 else | |
| 3669 set_window_pixwidth (child, WINDOW_WIDTH (XWINDOW (child)), 0); | |
| 3670 } | |
| 3671 } | |
| 3672 } | |
| 3673 | |
| 3674 /* Set the height of WINDOW and all its inferiors. */ | |
| 3675 void | |
| 3676 set_window_pixheight (Lisp_Object window, int new_pixheight, int nodelete) | |
| 3677 { | |
| 3678 set_window_pixsize (window, new_pixheight, nodelete, 1); | |
| 3679 } | |
| 3680 | |
| 3681 /* Recursively set width of WINDOW and its inferiors. */ | |
| 3682 void | |
| 3683 set_window_pixwidth (Lisp_Object window, int new_pixwidth, int nodelete) | |
| 3684 { | |
| 3685 set_window_pixsize (window, new_pixwidth, nodelete, 0); | |
| 3686 } | |
| 3687 | |
| 3688 | |
| 3689 static int window_select_count; | |
| 3690 | |
| 440 | 3691 DEFUN ("set-window-buffer", Fset_window_buffer, 2, 3, 0, /* |
| 428 | 3692 Make WINDOW display BUFFER as its contents. |
| 3693 BUFFER can be a buffer or buffer name. | |
| 440 | 3694 |
| 442 | 3695 With non-nil optional argument NORECORD, do not modify the |
| 440 | 3696 global or per-frame buffer ordering. |
| 428 | 3697 */ |
| 440 | 3698 (window, buffer, norecord)) |
| 428 | 3699 { |
| 3700 Lisp_Object tem; | |
| 3701 struct window *w = decode_window (window); | |
| 448 | 3702 int old_buffer_local_face_property = 0; |
| 428 | 3703 |
| 3704 buffer = Fget_buffer (buffer); | |
| 3705 CHECK_BUFFER (buffer); | |
| 3706 | |
| 3707 if (!BUFFER_LIVE_P (XBUFFER (buffer))) | |
| 563 | 3708 invalid_operation ("Attempt to display deleted buffer", Qunbound); |
| 428 | 3709 |
| 3710 tem = w->buffer; | |
| 3711 if (NILP (tem)) | |
| 563 | 3712 invalid_operation ("Window is deleted", Qunbound); |
| 428 | 3713 else if (EQ (tem, buffer)) |
| 3714 return Qnil; | |
| 3715 else if (! EQ (tem, Qt)) /* w->buffer is t when the window | |
| 3716 is first being set up. */ | |
| 3717 { | |
| 3718 if (!NILP (w->dedicated) && !EQ (tem, buffer)) | |
| 563 | 3719 signal_error (Qinvalid_operation, "Window is dedicated to buffer", tem); |
| 428 | 3720 |
| 448 | 3721 old_buffer_local_face_property = |
| 3722 XBUFFER (w->buffer)->buffer_local_face_property; | |
| 428 | 3723 unshow_buffer (w); |
| 3724 } | |
| 3725 | |
| 3726 w->buffer = buffer; | |
| 3727 w->window_end_pos[CURRENT_DISP] = 0; | |
| 3728 w->hscroll = 0; | |
| 3729 w->modeline_hscroll = 0; | |
| 844 | 3730 #if 0 /* pre point caches */ |
| 428 | 3731 Fset_marker (w->pointm[CURRENT_DISP], |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
3732 make_fixnum (BUF_PT (XBUFFER (buffer))), |
| 428 | 3733 buffer); |
| 3734 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
|
3735 make_fixnum (XBUFFER (buffer)->last_window_start), |
| 428 | 3736 buffer); |
| 844 | 3737 #else |
| 3738 { | |
|
5797
a1808d52a34a
If the position of a window's cached point is deleted, use buffer point instead
Aidan Kehoe <kehoea@parhasard.net>
parents:
5587
diff
changeset
|
3739 Lisp_Object saved_point = Fgethash (buffer, w->saved_point_cache, Qnil); |
| 844 | 3740 Lisp_Object newpoint = |
|
5798
b94d6e89ea5b
Correct a couple of small things with my last change.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5797
diff
changeset
|
3741 (EXTENTP (saved_point) && NILP (Fextent_detached_p (saved_point))) |
|
5797
a1808d52a34a
If the position of a window's cached point is deleted, use buffer point instead
Aidan Kehoe <kehoea@parhasard.net>
parents:
5587
diff
changeset
|
3742 ? Fextent_start_position (saved_point) |
|
a1808d52a34a
If the position of a window's cached point is deleted, use buffer point instead
Aidan Kehoe <kehoea@parhasard.net>
parents:
5587
diff
changeset
|
3743 : make_fixnum (BUF_PT (XBUFFER (buffer))); |
|
a1808d52a34a
If the position of a window's cached point is deleted, use buffer point instead
Aidan Kehoe <kehoea@parhasard.net>
parents:
5587
diff
changeset
|
3744 Lisp_Object marker; |
| 844 | 3745 /* Previously, we had in here set-window-point, which did one of the |
| 3746 following two, but not both. However, that could result in pointm | |
| 3747 being in a different buffer from the window's buffer! Probably | |
| 3748 not a travesty since it always occurred when the window was | |
| 3749 selected, meaning its value of point was ignored in favor of the | |
| 3750 buffer's; but it tripped an assert() in unshow_buffer(). */ | |
| 3751 set_marker_restricted (w->pointm[CURRENT_DISP], newpoint, buffer); | |
| 3752 if (EQ (wrap_window (w), Fselected_window (Qnil))) | |
| 3753 Fgoto_char (newpoint, buffer); /* this will automatically clip to | |
| 3754 accessible */ | |
| 3755 marker = Fgethash (buffer, w->saved_last_window_start_cache, Qnil); | |
| 3756 set_marker_restricted (w->start[CURRENT_DISP], | |
| 3757 !NILP (marker) ? | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
3758 make_fixnum (marker_position (marker)) : |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
3759 make_fixnum (XBUFFER (buffer)->last_window_start), |
| 844 | 3760 buffer); |
| 3761 } | |
| 3762 #endif | |
| 3763 | |
| 428 | 3764 Fset_marker (w->sb_point, w->start[CURRENT_DISP], buffer); |
| 3765 /* set start_at_line_beg correctly. GE */ | |
| 844 | 3766 w->start_at_line_beg = |
| 3767 beginning_of_line_p (XBUFFER (buffer), | |
| 3768 marker_position (w->start[CURRENT_DISP])); | |
| 3769 w->force_start = 0; /* XEmacs fix */ | |
| 428 | 3770 SET_LAST_MODIFIED (w, 1); |
| 3771 SET_LAST_FACECHANGE (w); | |
| 3772 MARK_WINDOWS_CHANGED (w); | |
| 448 | 3773 { |
| 3774 int new_buffer_local_face_property = | |
| 3775 XBUFFER (w->buffer)->buffer_local_face_property; | |
| 3776 | |
| 3777 if (new_buffer_local_face_property | |
| 3778 || new_buffer_local_face_property != old_buffer_local_face_property) | |
| 3779 MARK_WINDOW_FACES_CHANGED (w); | |
| 3780 } | |
| 428 | 3781 recompute_all_cached_specifiers_in_window (w); |
| 3782 if (EQ (window, Fselected_window (Qnil))) | |
| 3783 { | |
| 440 | 3784 if (NILP (norecord)) |
| 3785 Frecord_buffer (buffer); | |
| 3786 | |
| 428 | 3787 Fset_buffer (buffer); |
| 3788 } | |
|
5214
0b4d355771bd
Import buffer-display-count, buffer-display-time; thank you, Jeff Sparkes.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5191
diff
changeset
|
3789 if (NILP (XBUFFER (buffer)->display_count)) |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
3790 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>
parents:
5191
diff
changeset
|
3791 else |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
3792 XBUFFER (buffer)->display_count = make_fixnum (1 + XFIXNUM (XBUFFER (buffer)->display_count)); |
|
5214
0b4d355771bd
Import buffer-display-count, buffer-display-time; thank you, Jeff Sparkes.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5191
diff
changeset
|
3793 XBUFFER (buffer)->display_time = Fcurrent_time(); |
| 428 | 3794 return Qnil; |
| 3795 } | |
| 3796 | |
| 3797 DEFUN ("select-window", Fselect_window, 1, 2, 0, /* | |
| 3798 Select WINDOW. Most editing will apply to WINDOW's buffer. | |
| 3799 The main editor command loop selects the buffer of the selected window | |
| 3800 before each command. | |
| 3801 | |
| 442 | 3802 With non-nil optional argument NORECORD, do not modify the |
| 428 | 3803 global or per-frame buffer ordering. |
| 3804 */ | |
| 3805 (window, norecord)) | |
| 3806 { | |
| 3807 struct window *w; | |
| 3808 Lisp_Object old_selected_window = Fselected_window (Qnil); | |
| 3809 | |
| 3810 CHECK_LIVE_WINDOW (window); | |
| 3811 w = XWINDOW (window); | |
| 3812 | |
| 3813 /* we have already caught dead-window errors */ | |
| 3814 if (!NILP (w->hchild) || !NILP (w->vchild)) | |
| 563 | 3815 invalid_operation ("Trying to select non-leaf window", Qunbound); |
| 428 | 3816 |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
3817 w->use_time = make_fixnum (++window_select_count); |
| 442 | 3818 |
| 428 | 3819 if (EQ (window, old_selected_window)) |
| 3820 return window; | |
| 3821 | |
| 3822 /* deselect the old window, if it exists (it might not exist if | |
| 3823 the selected device has no frames, which occurs at startup) */ | |
| 3824 if (!NILP (old_selected_window)) | |
| 3825 { | |
| 3826 struct window *ow = XWINDOW (old_selected_window); | |
| 3827 | |
| 3828 Fset_marker (ow->pointm[CURRENT_DISP], | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
3829 make_fixnum (BUF_PT (XBUFFER (ow->buffer))), |
| 428 | 3830 ow->buffer); |
| 3831 | |
| 3832 MARK_WINDOWS_CHANGED (ow); | |
| 3833 } | |
| 3834 | |
| 3835 /* now select the window's frame */ | |
| 3836 set_frame_selected_window (XFRAME (WINDOW_FRAME (w)), window); | |
| 3837 | |
| 3838 select_frame_1 (WINDOW_FRAME (w)); | |
| 3839 | |
| 3840 /* also select the window's buffer */ | |
| 3841 if (NILP (norecord)) | |
| 3842 Frecord_buffer (w->buffer); | |
| 3843 Fset_buffer (w->buffer); | |
| 3844 | |
| 3845 /* Go to the point recorded in the window. | |
| 3846 This is important when the buffer is in more | |
| 3847 than one window. It also matters when | |
| 3848 redisplay_window has altered point after scrolling, | |
| 3849 because it makes the change only in the window. */ | |
| 3850 { | |
| 665 | 3851 Charbpos new_point = marker_position (w->pointm[CURRENT_DISP]); |
| 428 | 3852 if (new_point < BUF_BEGV (current_buffer)) |
| 3853 new_point = BUF_BEGV (current_buffer); | |
| 3854 else if (new_point > BUF_ZV (current_buffer)) | |
| 3855 new_point = BUF_ZV (current_buffer); | |
| 3856 | |
| 3857 BUF_SET_PT (current_buffer, new_point); | |
| 3858 } | |
| 3859 | |
| 3860 MARK_WINDOWS_CHANGED (w); | |
| 3861 | |
| 3862 return window; | |
| 3863 } | |
| 3864 | |
| 3865 Lisp_Object | |
| 3866 display_buffer (Lisp_Object buffer, Lisp_Object not_this_window_p, | |
| 3867 Lisp_Object override_frame) | |
| 3868 { | |
| 3869 return call3 (Qdisplay_buffer, buffer, not_this_window_p, override_frame); | |
| 3870 } | |
| 3871 | |
| 3872 void | |
| 3873 temp_output_buffer_show (Lisp_Object buf, Lisp_Object same_frame) | |
| 3874 { | |
| 3875 /* This function can GC */ | |
| 3876 Lisp_Object window; | |
| 3877 struct window *w; | |
| 3878 struct buffer *b = XBUFFER (buf); | |
| 3879 | |
| 3880 BUF_SAVE_MODIFF (XBUFFER (buf)) = BUF_MODIFF (b); | |
| 3881 widen_buffer (b, 0); | |
| 3882 BUF_SET_PT (b, BUF_BEG (b)); | |
| 3883 | |
| 3884 if (!NILP (Vtemp_buffer_show_function)) | |
| 3885 call1 (Vtemp_buffer_show_function, buf); | |
| 3886 else | |
| 3887 { | |
| 3888 window = display_buffer (buf, Qnil, same_frame); | |
| 3889 | |
| 3890 if (!EQ (XWINDOW (window)->frame, Fselected_frame (Qnil))) | |
| 3891 Fmake_frame_visible (WINDOW_FRAME (XWINDOW (window))); | |
| 3892 | |
| 3893 Vminibuffer_scroll_window = window; | |
| 3894 w = XWINDOW (window); | |
| 3895 w->hscroll = 0; | |
| 3896 w->modeline_hscroll = 0; | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
3897 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>
parents:
5474
diff
changeset
|
3898 set_marker_restricted (w->pointm[CURRENT_DISP], make_fixnum (1), buf); |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
3899 set_marker_restricted (w->sb_point, make_fixnum (1), buf); |
| 428 | 3900 } |
| 3901 } | |
| 3902 | |
| 3903 static void | |
| 3904 make_dummy_parent (Lisp_Object window) | |
| 3905 { | |
| 3906 struct window *o = XWINDOW (window); | |
|
5127
a9c41067dd88
more cleanups, terminology clarification, lots of doc work
Ben Wing <ben@xemacs.org>
parents:
5126
diff
changeset
|
3907 Lisp_Object obj = ALLOC_NORMAL_LISP_OBJECT (window); |
|
5117
3742ea8250b5
Checking in final CVS version of workspace 'ben-lisp-object'
Ben Wing <ben@xemacs.org>
parents:
3078
diff
changeset
|
3908 struct window *p = XWINDOW (obj); |
|
3742ea8250b5
Checking in final CVS version of workspace 'ben-lisp-object'
Ben Wing <ben@xemacs.org>
parents:
3078
diff
changeset
|
3909 |
|
5127
a9c41067dd88
more cleanups, terminology clarification, lots of doc work
Ben Wing <ben@xemacs.org>
parents:
5126
diff
changeset
|
3910 copy_lisp_object (obj, window); |
| 428 | 3911 |
| 3912 /* Don't copy the pointers to the line start cache or the face | |
| 3913 instances. */ | |
| 3914 p->line_start_cache = Dynarr_new (line_start_cache); | |
| 3092 | 3915 #ifdef NEW_GC |
| 3916 p->face_cachels = Dynarr_lisp_new (face_cachel, | |
| 3917 &lrecord_face_cachel_dynarr, | |
| 3918 &lrecord_face_cachel); | |
| 3919 p->glyph_cachels = Dynarr_lisp_new (glyph_cachel, | |
| 3920 &lrecord_glyph_cachel_dynarr, | |
| 3921 &lrecord_glyph_cachel); | |
| 3922 #else /* not NEW_GC */ | |
| 428 | 3923 p->face_cachels = Dynarr_new (face_cachel); |
| 3924 p->glyph_cachels = Dynarr_new (glyph_cachel); | |
| 3092 | 3925 #endif /* not NEW_GC */ |
| 442 | 3926 p->subwindow_instance_cache = |
| 450 | 3927 make_image_instance_cache_hash_table (); |
| 428 | 3928 |
| 3929 /* Put new into window structure in place of window */ | |
|
5117
3742ea8250b5
Checking in final CVS version of workspace 'ben-lisp-object'
Ben Wing <ben@xemacs.org>
parents:
3078
diff
changeset
|
3930 replace_window (window, obj); |
| 428 | 3931 |
| 3932 o->next = Qnil; | |
| 3933 o->prev = Qnil; | |
| 3934 o->vchild = Qnil; | |
| 3935 o->hchild = Qnil; | |
|
5117
3742ea8250b5
Checking in final CVS version of workspace 'ben-lisp-object'
Ben Wing <ben@xemacs.org>
parents:
3078
diff
changeset
|
3936 o->parent = obj; |
| 428 | 3937 |
| 3938 p->start[CURRENT_DISP] = Qnil; | |
| 3939 p->start[DESIRED_DISP] = Qnil; | |
| 3940 p->start[CMOTION_DISP] = Qnil; | |
| 3941 p->pointm[CURRENT_DISP] = Qnil; | |
| 3942 p->pointm[DESIRED_DISP] = Qnil; | |
| 3943 p->pointm[CMOTION_DISP] = Qnil; | |
| 3944 p->sb_point = Qnil; | |
| 844 | 3945 p->saved_point_cache = make_saved_buffer_point_cache (); |
| 3946 p->saved_last_window_start_cache = make_saved_buffer_point_cache (); | |
| 428 | 3947 p->buffer = Qnil; |
| 3948 } | |
| 3949 | |
| 3950 DEFUN ("split-window", Fsplit_window, 0, 3, "", /* | |
| 3951 Split WINDOW, putting SIZE lines in the first of the pair. | |
| 444 | 3952 WINDOW defaults to the selected one and SIZE to half its size. |
| 707 | 3953 If optional third arg HORFLAG is non-nil, split side by side and put |
| 3954 SIZE columns in the first of the pair. The newly created window is | |
| 3955 returned. | |
| 428 | 3956 */ |
| 444 | 3957 (window, size, horflag)) |
| 428 | 3958 { |
| 3025 | 3959 Lisp_Object new_; |
| 428 | 3960 struct window *o, *p; |
| 3961 struct frame *f; | |
| 444 | 3962 int csize; |
| 428 | 3963 int psize; |
| 3964 | |
| 3965 if (NILP (window)) | |
| 3966 window = Fselected_window (Qnil); | |
| 3967 else | |
| 3968 CHECK_LIVE_WINDOW (window); | |
| 3969 | |
| 3970 o = XWINDOW (window); | |
| 3971 f = XFRAME (WINDOW_FRAME (o)); | |
| 3972 | |
| 444 | 3973 if (NILP (size)) |
| 428 | 3974 { |
| 3975 if (!NILP (horflag)) | |
| 3976 /* In the new scheme, we are symmetric with respect to separators | |
| 3977 so there is no need to do weird things here. */ | |
| 3978 { | |
| 956 | 3979 psize = (WINDOW_WIDTH (o) + window_divider_width (o)) >> 1; |
| 444 | 3980 csize = window_pixel_width_to_char_width (o, psize, 0); |
| 428 | 3981 } |
| 3982 else | |
| 3983 { | |
| 3984 psize = WINDOW_HEIGHT (o) >> 1; | |
| 444 | 3985 csize = window_pixel_height_to_char_height (o, psize, 1); |
| 428 | 3986 } |
| 3987 } | |
| 3988 else | |
| 3989 { | |
|
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|
3990 CHECK_FIXNUM (size); |
|
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|
3991 csize = XFIXNUM (size); |
| 428 | 3992 if (!NILP (horflag)) |
| 444 | 3993 psize = window_char_width_to_pixel_width (o, csize, 0); |
| 428 | 3994 else |
| 444 | 3995 psize = window_char_height_to_pixel_height (o, csize, 1); |
| 428 | 3996 } |
| 3997 | |
| 3998 if (MINI_WINDOW_P (o)) | |
| 563 | 3999 invalid_operation ("Attempt to split minibuffer window", Qunbound); |
| 428 | 4000 else if (FRAME_NO_SPLIT_P (XFRAME (WINDOW_FRAME (o)))) |
| 563 | 4001 invalid_operation ("Attempt to split unsplittable frame", Qunbound); |
| 428 | 4002 |
| 4003 check_min_window_sizes (); | |
| 4004 | |
| 4005 if (NILP (horflag)) | |
| 4006 { | |
| 444 | 4007 if (csize < window_min_height) |
|
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|
4008 signal_error (Qinvalid_operation, "Window height too small (after splitting)", make_fixnum (csize)); |
| 444 | 4009 if (csize + window_min_height > window_char_height (o, 1)) |
| 563 | 4010 signal_error (Qinvalid_operation, "Window height too small (after splitting)", |
|
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|
4011 make_fixnum (window_char_height (o, 1) - csize)); |
| 428 | 4012 if (NILP (o->parent) |
| 4013 || NILP (XWINDOW (o->parent)->vchild)) | |
| 4014 { | |
| 4015 make_dummy_parent (window); | |
| 448 | 4016 #if 0 |
| 4017 /* #### I can't understand why you have to reset face | |
| 4018 cachels here. This can cause crash so let's disable it | |
| 4019 and see the difference. See redisplay-tests.el --yh */ | |
| 428 | 4020 reset_face_cachels (XWINDOW (window)); |
| 448 | 4021 #endif |
| 3025 | 4022 new_ = o->parent; |
| 4023 XWINDOW (new_)->vchild = window; | |
| 428 | 4024 XFRAME (o->frame)->mirror_dirty = 1; |
| 4025 } | |
| 4026 } | |
| 4027 else | |
| 4028 { | |
| 444 | 4029 if (csize < window_min_width) |
|
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|
4030 signal_error (Qinvalid_operation, "Window width too small (after splitting)", make_fixnum (csize)); |
| 444 | 4031 if (csize + window_min_width > window_char_width (o, 0)) |
| 563 | 4032 signal_error (Qinvalid_operation, "Window width too small (after splitting)", |
|
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|
4033 make_fixnum (window_char_width (o, 0) - csize)); |
| 428 | 4034 if (NILP (o->parent) |
| 4035 || NILP (XWINDOW (o->parent)->hchild)) | |
| 4036 { | |
| 4037 make_dummy_parent (window); | |
| 448 | 4038 #if 0 |
| 4039 /* #### See above. */ | |
| 428 | 4040 reset_face_cachels (XWINDOW (window)); |
| 448 | 4041 #endif |
| 3025 | 4042 new_ = o->parent; |
| 4043 XWINDOW (new_)->hchild = window; | |
| 428 | 4044 XFRAME (o->frame)->mirror_dirty = 1; |
| 4045 } | |
| 4046 } | |
| 4047 | |
| 4048 /* Now we know that window's parent is a vertical combination | |
| 4049 if we are dividing vertically, or a horizontal combination | |
| 4050 if we are making side-by-side windows */ | |
| 4051 | |
| 4052 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f); | |
| 3025 | 4053 new_ = allocate_window (); |
| 4054 p = XWINDOW (new_); | |
| 428 | 4055 |
| 4056 p->frame = o->frame; | |
| 4057 p->next = o->next; | |
| 4058 if (!NILP (p->next)) | |
| 3025 | 4059 XWINDOW (p->next)->prev = new_; |
| 428 | 4060 p->prev = window; |
| 3025 | 4061 o->next = new_; |
| 428 | 4062 p->parent = o->parent; |
| 4063 p->buffer = Qt; | |
| 4064 | |
| 4065 reset_face_cachels (p); | |
| 4066 reset_glyph_cachels (p); | |
| 4067 | |
| 4068 | |
| 4069 /* Apportion the available frame space among the two new windows */ | |
| 4070 | |
| 4071 if (!NILP (horflag)) | |
| 4072 { | |
| 4073 WINDOW_HEIGHT (p) = WINDOW_HEIGHT (o); | |
| 4074 WINDOW_TOP (p) = WINDOW_TOP (o); | |
| 4075 WINDOW_WIDTH (p) = WINDOW_WIDTH (o) - psize; | |
| 4076 WINDOW_WIDTH (o) = psize; | |
| 4077 WINDOW_LEFT (p) = WINDOW_LEFT (o) + psize; | |
| 4078 } | |
| 4079 else | |
| 4080 { | |
| 4081 WINDOW_LEFT (p) = WINDOW_LEFT (o); | |
| 4082 WINDOW_WIDTH (p) = WINDOW_WIDTH (o); | |
| 4083 WINDOW_HEIGHT (p) = WINDOW_HEIGHT (o) - psize; | |
| 4084 WINDOW_HEIGHT (o) = psize; | |
| 4085 WINDOW_TOP (p) = WINDOW_TOP (o) + psize; | |
| 4086 } | |
| 4087 | |
| 4088 XFRAME (p->frame)->mirror_dirty = 1; | |
| 853 | 4089 |
| 3025 | 4090 note_object_created (new_); |
| 853 | 4091 |
| 428 | 4092 /* do this last (after the window is completely initialized and |
| 4093 the mirror-dirty flag is set) so that specifier recomputation | |
| 4094 caused as a result of this will work properly and not abort. */ | |
| 3025 | 4095 Fset_window_buffer (new_, o->buffer, Qt); |
| 4096 return new_; | |
| 428 | 4097 } |
| 4098 | |
| 4099 | |
| 4100 DEFUN ("enlarge-window", Fenlarge_window, 1, 3, "_p", /* | |
| 444 | 4101 Make the selected window COUNT lines taller. |
| 4102 From program, optional second arg HORIZONTALP non-nil means grow | |
| 4103 sideways COUNT columns, and optional third arg WINDOW specifies the | |
| 4104 window to change instead of the selected window. | |
| 428 | 4105 */ |
| 444 | 4106 (count, horizontalp, window)) |
| 4107 { | |
|
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|
4108 CHECK_FIXNUM (count); |
|
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|
4109 change_window_height (window, XFIXNUM (count), horizontalp, /* inpixels */ 0); |
| 428 | 4110 return Qnil; |
| 4111 } | |
| 4112 | |
| 4113 DEFUN ("enlarge-window-pixels", Fenlarge_window_pixels, 1, 3, "_p", /* | |
| 444 | 4114 Make the selected window COUNT pixels taller. |
| 4115 From program, optional second arg HORIZONTALP non-nil means grow | |
| 4116 sideways COUNT pixels, and optional third arg WINDOW specifies the | |
| 4117 window to change instead of the selected window. | |
| 428 | 4118 */ |
| 444 | 4119 (count, horizontalp, window)) |
| 4120 { | |
|
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|
4121 CHECK_FIXNUM (count); |
|
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|
4122 change_window_height (window, XFIXNUM (count), horizontalp, /* inpixels */ 1); |
| 428 | 4123 return Qnil; |
| 4124 } | |
| 4125 | |
| 4126 DEFUN ("shrink-window", Fshrink_window, 1, 3, "_p", /* | |
| 444 | 4127 Make the selected window COUNT lines shorter. |
| 4128 From program, optional second arg HORIZONTALP non-nil means shrink | |
| 4129 sideways COUNT columns, and optional third arg WINDOW specifies the | |
| 4130 window to change instead of the selected window. | |
| 428 | 4131 */ |
| 444 | 4132 (count, horizontalp, window)) |
| 4133 { | |
|
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|
4134 CHECK_FIXNUM (count); |
|
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|
4135 change_window_height (window, -XFIXNUM (count), horizontalp, /* inpixels */ 0); |
| 428 | 4136 return Qnil; |
| 4137 } | |
| 4138 | |
| 4139 DEFUN ("shrink-window-pixels", Fshrink_window_pixels, 1, 3, "_p", /* | |
| 444 | 4140 Make the selected window COUNT pixels smaller. |
| 4141 From program, optional second arg HORIZONTALP non-nil means shrink | |
| 4142 sideways COUNT pixels, and optional third arg WINDOW specifies the | |
| 4143 window to change instead of the selected window. | |
| 428 | 4144 */ |
| 444 | 4145 (count, horizontalp, window)) |
| 4146 { | |
|
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|
4147 CHECK_FIXNUM (count); |
|
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diff
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|
4148 change_window_height (window, -XFIXNUM (count), horizontalp, /* inpixels */ 1); |
| 428 | 4149 return Qnil; |
| 4150 } | |
| 4151 | |
| 4152 static int | |
| 4153 window_pixel_height_to_char_height (struct window *w, int pixel_height, | |
| 4154 int include_gutters_p) | |
| 4155 { | |
| 4156 int avail_height; | |
| 4157 int defheight, defwidth; | |
| 3687 | 4158 int char_height = 0; |
| 793 | 4159 Lisp_Object window = wrap_window (w); |
| 4160 | |
| 428 | 4161 |
| 4162 avail_height = (pixel_height - | |
| 4163 (include_gutters_p ? 0 : | |
| 442 | 4164 window_top_window_gutter_height (w) + |
| 4165 window_bottom_window_gutter_height (w))); | |
| 428 | 4166 |
|
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|
4167 default_face_width_and_height (window, &defwidth, &defheight); |
| 428 | 4168 |
| 3687 | 4169 if (defheight) |
| 4170 char_height = avail_height / defheight; | |
| 428 | 4171 |
| 4172 /* It's the calling function's responsibility to check these values | |
| 4173 and make sure they're not out of range. | |
| 4174 | |
| 4175 #### We need to go through the calling functions and actually | |
| 4176 do this. */ | |
| 4177 return max (0, char_height); | |
| 4178 } | |
| 4179 | |
| 4180 static int | |
| 4181 window_char_height_to_pixel_height (struct window *w, int char_height, | |
| 4182 int include_gutters_p) | |
| 4183 { | |
| 4184 int avail_height; | |
| 4185 int defheight, defwidth; | |
| 4186 int pixel_height; | |
| 4187 | |
| 793 | 4188 Lisp_Object window = wrap_window (w); |
| 4189 | |
| 428 | 4190 |
|
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|
4191 default_face_width_and_height (window, &defwidth, &defheight); |
| 428 | 4192 |
| 4193 avail_height = char_height * defheight; | |
| 4194 pixel_height = (avail_height + | |
| 4195 (include_gutters_p ? 0 : | |
| 442 | 4196 window_top_window_gutter_height (w) + |
| 4197 window_bottom_window_gutter_height (w))); | |
| 428 | 4198 |
| 4199 /* It's the calling function's responsibility to check these values | |
| 4200 and make sure they're not out of range. | |
| 4201 | |
| 4202 #### We need to go through the calling functions and actually | |
| 4203 do this. */ | |
| 4204 return max (0, pixel_height); | |
| 4205 } | |
| 4206 | |
| 4207 /* Return number of default lines of text can fit in the window W. | |
| 4208 If INCLUDE_GUTTERS_P is 1, include "gutter" space (modeline plus | |
| 4209 horizontal scrollbar) in the space that is used for the calculation. | |
| 442 | 4210 This doesn't include space used by the frame gutters. |
| 428 | 4211 */ |
| 4212 int | |
| 4213 window_char_height (struct window *w, int include_gutters_p) | |
| 4214 { | |
| 442 | 4215 return window_pixel_height_to_char_height (w, window_pixel_height (w), |
| 428 | 4216 include_gutters_p); |
| 4217 } | |
| 4218 | |
| 4219 /* | |
| 4220 * Return number of lines currently displayed in window w. If | |
| 4221 * end-of-buffer is displayed then the area below end-of-buffer is assume | |
| 4222 * to be blank lines of default height. | |
| 4223 * Does not include the modeline. | |
| 4224 */ | |
| 4225 int | |
| 4226 window_displayed_height (struct window *w) | |
| 4227 { | |
| 4228 struct buffer *b = XBUFFER (w->buffer); | |
| 4229 display_line_dynarr *dla = window_display_lines (w, CURRENT_DISP); | |
| 4230 int num_lines; | |
| 4231 Charcount end_pos = (BUF_Z (b) - w->window_end_pos[CURRENT_DISP] > BUF_ZV (b) | |
| 4232 ? -1 | |
| 4233 : w->window_end_pos[CURRENT_DISP]); | |
| 4234 | |
| 4235 if (!Dynarr_length (dla)) | |
| 4236 return window_char_height (w, 0); | |
| 4237 | |
| 4238 num_lines = Dynarr_length (dla); | |
| 4239 | |
| 4240 /* #### Document and assert somewhere that w->window_end_pos == -1 | |
| 4241 indicates that end-of-buffer is being displayed. */ | |
| 4242 if (end_pos == -1) | |
| 4243 { | |
| 4967 | 4244 struct display_line *dl = Dynarr_begin (dla); |
| 428 | 4245 int ypos1 = dl->ypos + dl->descent; |
| 4246 int ypos2 = WINDOW_TEXT_BOTTOM (w); | |
| 4247 Lisp_Object window; | |
| 4248 int defheight, defwidth; | |
| 4249 | |
| 793 | 4250 window = wrap_window (w); |
| 428 | 4251 |
| 4252 if (dl->modeline) | |
| 4253 { | |
| 4254 num_lines--; | |
| 4255 | |
| 4256 if (Dynarr_length (dla) == 1) | |
| 4257 ypos1 = WINDOW_TEXT_TOP (w); | |
| 4258 else | |
| 4259 { | |
| 4260 dl = Dynarr_atp (dla, Dynarr_length (dla) - 1); | |
| 4261 /* If this line is clipped then we know that there is no | |
| 4262 blank room between eob and the modeline. If we are | |
| 4263 scrolling on clipped lines just know off the clipped | |
| 4264 line and return .*/ | |
| 4265 if (scroll_on_clipped_lines && dl->clip) | |
| 4266 return num_lines - 1; | |
| 4267 ypos1 = dl->ypos + dl->descent - dl->clip; | |
| 4268 } | |
| 4269 } | |
| 4270 | |
|
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changeset
|
4271 default_face_width_and_height (window, &defwidth, &defheight); |
| 428 | 4272 /* #### This probably needs to know about the clipping area once a |
| 4273 final definition is decided on. */ | |
| 3707 | 4274 if (defheight) |
| 4275 num_lines += ((ypos2 - ypos1) / defheight); | |
| 428 | 4276 } |
| 4277 else | |
| 4278 { | |
| 4967 | 4279 if (num_lines > 1 && Dynarr_begin (dla)->modeline) |
| 428 | 4280 num_lines--; |
| 4281 | |
| 4282 if (scroll_on_clipped_lines | |
| 4283 && Dynarr_atp (dla, Dynarr_length (dla) - 1)->clip) | |
| 4284 num_lines--; | |
| 4285 } | |
| 4286 | |
| 4287 return num_lines; | |
| 4288 } | |
| 4289 | |
| 4290 static int | |
| 4291 window_pixel_width (Lisp_Object window) | |
| 4292 { | |
| 4293 return WINDOW_WIDTH (XWINDOW (window)); | |
| 4294 } | |
| 4295 | |
| 442 | 4296 /* Calculate the pixel of a window, optionally including margin space |
| 4297 but no vertical gutters. */ | |
| 428 | 4298 static int |
| 4299 window_pixel_width_to_char_width (struct window *w, int pixel_width, | |
| 4300 int include_margins_p) | |
| 4301 { | |
| 4302 int avail_width; | |
| 3676 | 4303 int char_width = 0; |
| 428 | 4304 int defheight, defwidth; |
| 793 | 4305 Lisp_Object window = wrap_window (w); |
| 4306 | |
| 428 | 4307 |
| 4308 avail_width = (pixel_width - | |
| 4309 window_left_gutter_width (w, 0) - | |
| 4310 window_right_gutter_width (w, 0) - | |
| 4311 (include_margins_p ? 0 : window_left_margin_width (w)) - | |
| 4312 (include_margins_p ? 0 : window_right_margin_width (w))); | |
| 4313 | |
|
5047
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changeset
|
4314 default_face_width_and_height (window, &defwidth, &defheight); |
| 428 | 4315 |
| 3676 | 4316 if (defwidth) |
| 4317 char_width = (avail_width / defwidth); | |
| 428 | 4318 |
| 4319 /* It's the calling function's responsibility to check these values | |
| 4320 and make sure they're not out of range. | |
| 4321 | |
| 4322 #### We need to go through the calling functions and actually | |
| 4323 do this. */ | |
| 4324 return max (0, char_width); | |
| 4325 } | |
| 4326 | |
| 4327 static int | |
| 4328 window_char_width_to_pixel_width (struct window *w, int char_width, | |
| 4329 int include_margins_p) | |
| 4330 { | |
| 4331 int avail_width; | |
| 4332 int pixel_width; | |
| 4333 int defheight, defwidth; | |
| 793 | 4334 Lisp_Object window = wrap_window (w); |
| 4335 | |
| 428 | 4336 |
|
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changeset
|
4337 default_face_width_and_height (window, &defwidth, &defheight); |
| 428 | 4338 |
| 4339 avail_width = char_width * defwidth; | |
| 4340 pixel_width = (avail_width + | |
| 442 | 4341 window_left_window_gutter_width (w, 0) + |
| 4342 window_right_window_gutter_width (w, 0) + | |
| 428 | 4343 (include_margins_p ? 0 : window_left_margin_width (w)) + |
| 4344 (include_margins_p ? 0 : window_right_margin_width (w))); | |
| 4345 | |
| 4346 /* It's the calling function's responsibility to check these values | |
| 4347 and make sure they're not out of range. | |
| 4348 | |
| 4349 #### We need to go through the calling functions and actually | |
| 4350 do this. */ | |
| 4351 return max (0, pixel_width); | |
| 4352 } | |
| 4353 | |
| 4354 /* This returns the usable space which doesn't include space needed by | |
| 4355 scrollbars or divider lines. */ | |
| 4356 int | |
| 4357 window_char_width (struct window *w, int include_margins_p) | |
| 4358 { | |
| 4359 return window_pixel_width_to_char_width (w, WINDOW_WIDTH (w), | |
| 4360 include_margins_p); | |
| 4361 } | |
| 4362 | |
| 4363 #define MINSIZE(w) \ | |
| 4364 (widthflag \ | |
| 4365 ? window_min_width * defwidth \ | |
| 4366 : (defheight * (MINI_WINDOW_P (XWINDOW (w)) ? 1 : window_min_height))) | |
| 4367 | |
| 4368 #define CURBEG(w) \ | |
| 4369 *(widthflag ? (int *) &WINDOW_LEFT (w) : (int *) &WINDOW_TOP (w)) | |
| 4370 | |
| 4371 #define CURSIZE(w) \ | |
| 4372 *(widthflag ? (int *) &WINDOW_WIDTH (w) : (int *) &WINDOW_HEIGHT (w)) | |
| 4373 | |
| 4374 #define CURCHARSIZE(w) \ | |
| 4375 (widthflag ? window_char_width (w, 0) : window_char_height (w, 1)) | |
| 4376 | |
| 4377 #define MINCHARSIZE(window) \ | |
| 4378 (widthflag ? window_min_width : MINI_WINDOW_P (XWINDOW (window)) \ | |
| 4379 ? 1 : window_min_height) | |
| 4380 | |
| 442 | 4381 static int |
| 4382 window_pixheight (Lisp_Object w) | |
| 4383 { | |
| 4384 return window_pixel_height (XWINDOW (w)); | |
| 4385 } | |
| 4386 | |
| 428 | 4387 /* Unlike set_window_pixheight, this function |
| 4388 also changes the heights of the siblings so as to | |
| 4389 keep everything consistent. */ | |
| 4390 | |
| 4391 static void | |
| 444 | 4392 change_window_height (Lisp_Object window, int delta, Lisp_Object horizontalp, |
| 428 | 4393 int inpixels) |
| 4394 { | |
| 444 | 4395 struct window *win = decode_window (window); |
| 4396 int widthflag = !NILP (horizontalp); | |
| 428 | 4397 Lisp_Object parent; |
| 4398 struct window *w; | |
| 4399 struct frame *f; | |
| 4400 int *sizep; | |
| 4401 int (*sizefun) (Lisp_Object) = (widthflag | |
| 4402 ? window_pixel_width | |
| 442 | 4403 : window_pixheight); |
| 428 | 4404 void (*setsizefun) (Lisp_Object, int, int) = (widthflag |
| 4405 ? set_window_pixwidth | |
| 4406 : set_window_pixheight); | |
| 4407 int dim; | |
| 4408 int defheight, defwidth; | |
| 4409 | |
| 4410 if (delta == 0) | |
| 4411 return; | |
| 4412 | |
| 4413 check_min_window_sizes (); | |
| 4414 | |
| 793 | 4415 window = wrap_window (win); |
| 428 | 4416 f = XFRAME (win->frame); |
| 4417 if (EQ (window, FRAME_ROOT_WINDOW (f))) | |
| 563 | 4418 invalid_operation ("Won't change only window", Qunbound); |
| 428 | 4419 |
|
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Ben Wing <ben@xemacs.org>
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5043
diff
changeset
|
4420 default_face_width_and_height (window, &defwidth, &defheight); |
| 428 | 4421 |
| 4422 while (1) | |
| 4423 { | |
| 4424 w = XWINDOW (window); | |
| 4425 parent = w->parent; | |
| 4426 if (NILP (parent)) | |
| 4427 { | |
| 4428 if (widthflag) | |
| 3078 | 4429 { |
| 4430 int new_pixsize; | |
| 4431 sizep = &CURSIZE (w); | |
| 3466 | 4432 dim = CURCHARSIZE (w); |
| 3078 | 4433 new_pixsize = inpixels?(*sizep + delta):(dim+delta); |
| 4434 set_window_pixsize (window, new_pixsize, 0, 0); | |
| 4435 return; | |
| 4436 } | |
| 428 | 4437 break; |
| 4438 } | |
| 4439 if (widthflag | |
| 4440 ? !NILP (XWINDOW (parent)->hchild) | |
| 4441 : !NILP (XWINDOW (parent)->vchild)) | |
| 4442 break; | |
| 4443 window = parent; | |
| 4444 } | |
| 4445 | |
| 4446 sizep = &CURSIZE (w); | |
| 4447 dim = CURCHARSIZE (w); | |
| 4448 | |
| 4449 if ((inpixels && (*sizep + delta) < MINSIZE (window)) || | |
| 4450 (!inpixels && (dim + delta) < MINCHARSIZE (window))) | |
| 4451 { | |
| 4452 if (MINI_WINDOW_P (XWINDOW (window))) | |
| 4453 return; | |
| 4454 else if (!NILP (parent)) | |
| 4455 { | |
| 4456 Fdelete_window (window, Qnil); | |
| 4457 return; | |
| 4458 } | |
| 4459 } | |
| 4460 | |
| 4461 if (!inpixels) | |
| 4462 delta *= (widthflag ? defwidth : defheight); | |
| 4463 | |
| 4464 { | |
| 4465 int maxdelta; | |
| 4466 | |
| 4467 maxdelta = ((!NILP (parent)) | |
| 4468 ? (*sizefun) (parent) - *sizep | |
| 4469 : ((!NILP (w->next)) | |
| 4470 ? (*sizefun) (w->next) - MINSIZE (w->next) | |
| 4471 : ((!NILP (w->prev)) | |
| 4472 ? (*sizefun) (w->prev) - MINSIZE (w->prev) | |
| 4473 /* This is a frame with only one window, | |
| 4474 a minibuffer-only or a minibufferless frame. */ | |
| 4475 : (delta = 0)))); | |
| 4476 | |
| 4477 if (delta > maxdelta) | |
| 4478 /* This case traps trying to make the minibuffer | |
| 4479 the full frame, or make the only window aside from the | |
| 4480 minibuffer the full frame. */ | |
| 4481 delta = maxdelta; | |
| 4482 | |
| 4483 if (delta == 0) | |
| 4484 return; | |
| 4485 | |
| 4486 #if 0 /* FSFmacs */ | |
| 4487 /* #### Chuck: is this correct? */ | |
| 4488 if (*sizep + delta < MINSIZE (window)) | |
| 4489 { | |
| 4490 Fdelete_window (window); | |
| 4491 return; | |
| 4492 } | |
| 4493 #endif | |
| 4494 } | |
| 4495 | |
| 4496 if (!NILP (w->next) && | |
| 4497 (*sizefun) (w->next) - delta >= (int) MINSIZE (w->next)) | |
| 4498 { | |
| 4499 CURBEG (XWINDOW (w->next)) += delta; | |
| 4500 (*setsizefun) (w->next, (*sizefun) (w->next) - delta, 0); | |
| 4501 (*setsizefun) (window, *sizep + delta, 0); | |
| 4502 } | |
| 4503 else if (!NILP (w->prev) && | |
| 4504 (*sizefun) (w->prev) - delta >= (int) MINSIZE (w->prev)) | |
| 4505 { | |
| 4506 (*setsizefun) (w->prev, (*sizefun) (w->prev) - delta, 0); | |
| 4507 CURBEG (w) -= delta; | |
| 4508 (*setsizefun) (window, *sizep + delta, 0); | |
| 4509 } | |
| 4510 else | |
| 4511 { | |
| 4512 int delta1; | |
| 4513 int opht = (*sizefun) (parent); | |
| 4514 | |
| 4515 /* If trying to grow this window to or beyond size of the parent, | |
| 4516 make delta1 so big that, on shrinking back down, | |
| 4517 all the siblings end up with less than one line and are deleted. */ | |
| 4518 if (opht <= *sizep + delta) | |
| 4519 delta1 = opht * opht * 2; | |
| 4520 /* Otherwise, make delta1 just right so that if we add delta1 | |
| 4521 lines to this window and to the parent, and then shrink | |
| 4522 the parent back to its original size, the new proportional | |
| 4523 size of this window will increase by delta. */ | |
| 4524 else | |
| 4525 delta1 = (delta * opht * 100) / ((opht - *sizep - delta) * 100); | |
| 4526 | |
| 4527 /* Add delta1 lines or columns to this window, and to the parent, | |
| 4528 keeping things consistent while not affecting siblings. */ | |
| 4529 CURSIZE (XWINDOW (parent)) = opht + delta1; | |
| 4530 (*setsizefun) (window, *sizep + delta1, 0); | |
| 4531 | |
| 4532 /* Squeeze out delta1 lines or columns from our parent, | |
| 4533 shrinking this window and siblings proportionately. | |
| 4534 This brings parent back to correct size. | |
| 4535 Delta1 was calculated so this makes this window the desired size, | |
| 4536 taking it all out of the siblings. */ | |
| 4537 (*setsizefun) (parent, opht, 0); | |
| 4538 } | |
| 4539 | |
| 4540 SET_LAST_MODIFIED (w, 0); | |
| 4541 SET_LAST_FACECHANGE (w); | |
| 4542 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f); | |
| 4543 /* overkill maybe, but better to be correct */ | |
| 4544 MARK_FRAME_GUTTERS_CHANGED (f); | |
| 4545 } | |
| 4546 #undef MINSIZE | |
| 4547 #undef CURBEG | |
| 4548 #undef CURSIZE | |
| 4549 #undef CURCHARSIZE | |
| 4550 #undef MINCHARSIZE | |
| 4551 | |
| 4552 | |
| 4553 | |
| 444 | 4554 /* Scroll contents of window WINDOW up COUNT lines. |
| 4555 If COUNT < (top line height / average line height) then we just adjust | |
| 4556 the top clip. */ | |
| 428 | 4557 void |
| 444 | 4558 window_scroll (Lisp_Object window, Lisp_Object count, int direction, |
| 578 | 4559 Error_Behavior errb) |
| 428 | 4560 { |
| 4561 struct window *w = XWINDOW (window); | |
| 4562 struct buffer *b = XBUFFER (w->buffer); | |
| 4563 int selected = EQ (window, Fselected_window (Qnil)); | |
| 4564 int value = 0; | |
| 4565 Lisp_Object point, tem; | |
| 4566 display_line_dynarr *dla; | |
| 4567 int fheight, fwidth, modeline = 0; | |
| 4568 struct display_line* dl; | |
| 4569 | |
| 4570 if (selected) | |
|
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|
4571 point = make_fixnum (BUF_PT (b)); |
| 428 | 4572 else |
| 4573 { | |
| 665 | 4574 Charbpos pos = marker_position (w->pointm[CURRENT_DISP]); |
| 428 | 4575 |
| 4576 if (pos < BUF_BEGV (b)) | |
| 4577 pos = BUF_BEGV (b); | |
| 4578 else if (pos > BUF_ZV (b)) | |
| 4579 pos = BUF_ZV (b); | |
| 4580 | |
|
5581
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Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4581 point = make_fixnum (pos); |
| 428 | 4582 } |
| 4583 | |
| 4584 /* Always set force_start so that redisplay_window will run | |
| 4585 the window-scroll-functions. */ | |
| 4586 w->force_start = 1; | |
| 4587 | |
| 4588 /* #### When the fuck does this happen? I'm so glad that history has | |
| 4589 completely documented the behavior of the scrolling functions under | |
| 4590 all circumstances. */ | |
| 1708 | 4591 tem = Fpos_visible_in_window_p (point, window, Qnil); |
| 428 | 4592 if (NILP (tem)) |
| 4593 { | |
|
5581
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4594 Fvertical_motion (make_fixnum (-window_char_height (w, 0) / 2), |
| 428 | 4595 window, Qnil); |
| 4596 Fset_marker (w->start[CURRENT_DISP], point, w->buffer); | |
|
5581
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Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4597 w->start_at_line_beg = beginning_of_line_p (b, XFIXNUM (point)); |
| 428 | 4598 WINDOW_TEXT_TOP_CLIP (w) = 0; |
| 4599 MARK_WINDOWS_CHANGED (w); | |
| 4600 } | |
| 4601 | |
| 444 | 4602 if (!NILP (count)) |
| 428 | 4603 { |
| 444 | 4604 if (EQ (count, Qminus)) |
| 428 | 4605 direction *= -1; |
| 4606 else | |
| 4607 { | |
| 444 | 4608 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
|
4609 value = XFIXNUM (count) * direction; |
| 428 | 4610 |
| 4611 if (!value) | |
| 4612 return; /* someone just made a pointless call */ | |
| 4613 } | |
| 4614 } | |
| 4615 | |
| 4616 /* If the user didn't specify how far to scroll then we have to figure it | |
| 4617 out by ourselves. */ | |
| 444 | 4618 if (NILP (count) || EQ (count, Qminus)) |
| 428 | 4619 { |
| 4620 /* Going forwards is easy. If that is what we are doing then just | |
| 4621 set value and the section which handles the user specifying a | |
| 4622 positive value will work. */ | |
| 4623 if (direction == 1) | |
| 4624 { | |
| 4625 value = window_displayed_height (w) - next_screen_context_lines; | |
| 4626 value = (value < 1 ? 1 : value); | |
| 4627 } | |
| 4628 | |
| 4629 /* Going backwards is hard. We can't use the same loop used if the | |
| 4630 user specified a negative value because we care about | |
| 4631 next_screen_context_lines. In a variable height world you don't | |
| 4632 know how many lines above you can actually be displayed and still | |
| 4633 have the context lines appear. So we leave value set to 0 and add | |
| 4634 a separate section to deal with this. */ | |
| 4635 | |
| 4636 } | |
| 4637 | |
| 4638 if (direction == 1 && !value) | |
| 4639 { | |
| 4640 return; | |
| 4641 } | |
| 4642 | |
| 4643 /* Determine parameters to test for partial line scrolling with. */ | |
| 4644 dla = window_display_lines (w, CURRENT_DISP); | |
| 4645 | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4646 if (FIXNUMP (Vwindow_pixel_scroll_increment)) |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4647 fheight = XFIXNUM (Vwindow_pixel_scroll_increment); |
| 440 | 4648 else if (!NILP (Vwindow_pixel_scroll_increment)) |
|
5047
07dcc7000bbf
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Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
4649 default_face_width_and_height (window, &fwidth, &fheight); |
| 438 | 4650 |
| 428 | 4651 if (Dynarr_length (dla) >= 1) |
| 4967 | 4652 modeline = Dynarr_begin (dla)->modeline; |
| 428 | 4653 |
| 4654 dl = Dynarr_atp (dla, modeline); | |
| 438 | 4655 |
| 428 | 4656 if (value > 0) |
| 4657 { | |
| 4658 /* Go for partial display line scrolling. This just means bumping | |
| 4659 the clip by a reasonable amount and redisplaying, everything else | |
| 4660 remains unchanged. */ | |
| 4661 if (!NILP (Vwindow_pixel_scroll_increment) | |
| 4662 && | |
| 4663 Dynarr_length (dla) >= (1 + modeline) | |
| 4664 && | |
| 458 | 4665 (dl->ascent - dl->top_clip) > fheight * value) |
| 428 | 4666 { |
| 4667 WINDOW_TEXT_TOP_CLIP (w) += value * fheight; | |
| 4668 MARK_WINDOWS_CHANGED (w); | |
| 4669 } | |
| 4670 else | |
| 4671 { | |
| 4672 int vtarget; | |
| 665 | 4673 Charbpos startp, old_start; |
| 438 | 4674 |
| 428 | 4675 if (WINDOW_TEXT_TOP_CLIP (w)) |
| 4676 { | |
| 4677 WINDOW_TEXT_TOP_CLIP (w) = 0; | |
| 4678 MARK_WINDOWS_CHANGED (w); | |
| 4679 } | |
| 4680 | |
| 4681 old_start = marker_position (w->start[CURRENT_DISP]); | |
| 4682 startp = vmotion (w, old_start, value, &vtarget); | |
| 438 | 4683 |
| 428 | 4684 if (vtarget < value && |
| 4685 (w->window_end_pos[CURRENT_DISP] == -1 | |
| 4686 || (BUF_Z (b) - w->window_end_pos[CURRENT_DISP] > BUF_ZV (b)))) | |
| 4687 { | |
| 563 | 4688 maybe_signal_error_1 (Qend_of_buffer, Qnil, Qwindow, errb); |
| 428 | 4689 return; |
| 4690 } | |
| 4691 else | |
| 4692 { | |
|
5581
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4693 set_marker_restricted (w->start[CURRENT_DISP], make_fixnum (startp), |
| 428 | 4694 w->buffer); |
| 4695 w->force_start = 1; | |
| 4696 w->start_at_line_beg = beginning_of_line_p (b, startp); | |
| 4697 MARK_WINDOWS_CHANGED (w); | |
| 438 | 4698 |
|
5581
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Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4699 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
|
4700 Fset_window_point (wrap_window (w), make_fixnum (startp)); |
| 428 | 4701 } |
| 4702 } | |
| 4703 } | |
| 4704 else if (value < 0) | |
| 4705 { | |
| 4706 /* Go for partial display line scrolling. This just means bumping | |
| 4707 the clip by a reasonable amount and redisplaying, everything else | |
| 4708 remains unchanged. */ | |
| 4709 if (!NILP (Vwindow_pixel_scroll_increment) | |
| 4710 && | |
| 4711 Dynarr_length (dla) >= (1 + modeline) | |
| 4712 && | |
| 4713 (dl->ascent - dl->top_clip) - fheight * value < | |
| 4714 (dl->ascent + dl->descent - dl->clip) | |
| 4715 && | |
| 4716 WINDOW_TEXT_TOP_CLIP (w) + value * fheight > 0) | |
| 4717 { | |
| 4718 WINDOW_TEXT_TOP_CLIP (w) += value * fheight; | |
| 4719 MARK_WINDOWS_CHANGED (w); | |
| 4720 } | |
| 4721 else | |
| 4722 { | |
| 4723 int vtarget; | |
| 665 | 4724 Charbpos startp, old_start; |
| 438 | 4725 |
| 428 | 4726 if (WINDOW_TEXT_TOP_CLIP (w)) |
| 4727 { | |
| 4728 WINDOW_TEXT_TOP_CLIP (w) = 0; | |
| 4729 MARK_WINDOWS_CHANGED (w); | |
| 4730 } | |
| 438 | 4731 |
| 428 | 4732 old_start = marker_position (w->start[CURRENT_DISP]); |
| 4733 startp = vmotion (w, old_start, value, &vtarget); | |
| 438 | 4734 |
| 428 | 4735 if (vtarget > value |
| 4736 && marker_position (w->start[CURRENT_DISP]) == BUF_BEGV (b)) | |
| 4737 { | |
| 563 | 4738 maybe_signal_error_1 (Qbeginning_of_buffer, Qnil, Qwindow, errb); |
| 428 | 4739 return; |
| 4740 } | |
| 4741 else | |
| 4742 { | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4743 set_marker_restricted (w->start[CURRENT_DISP], make_fixnum (startp), |
| 428 | 4744 w->buffer); |
| 4745 w->force_start = 1; | |
| 4746 w->start_at_line_beg = beginning_of_line_p (b, startp); | |
| 4747 MARK_WINDOWS_CHANGED (w); | |
| 438 | 4748 |
| 440 | 4749 /* #### Scroll back by less than a line. This code was |
| 4750 originally for scrolling over large pixmaps and it | |
| 4751 loses when a line being *exposed* at the top of the | |
| 4752 window is bigger than the current one. However, for | |
| 4753 pixel based scrolling in general we can guess that | |
| 4754 the line we are going to display is probably the same | |
| 4755 size as the one we are on. In that instance we can | |
| 4756 have a reasonable stab at a suitable top clip. Fixing | |
| 4757 this properly is hard (and probably slow) as we would | |
| 4758 have to call redisplay to figure out the exposed line | |
| 4759 size. */ | |
| 4760 if (!NILP (Vwindow_pixel_scroll_increment) | |
| 4761 && Dynarr_length (dla) >= (1 + modeline) | |
| 4762 && dl->ascent + fheight * value > 0) | |
| 4763 { | |
| 4764 WINDOW_TEXT_TOP_CLIP (w) = (dl->ascent + fheight * value); | |
| 4765 } | |
| 4766 | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4767 if (!point_would_be_visible (w, startp, XFIXNUM (point), 0)) |
| 428 | 4768 { |
| 665 | 4769 Charbpos new_point; |
| 438 | 4770 |
| 428 | 4771 if (MINI_WINDOW_P (w)) |
| 4772 new_point = startp; | |
| 4773 else | |
| 4774 new_point = start_of_last_line (w, startp); | |
| 438 | 4775 |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4776 Fset_window_point (wrap_window (w), make_fixnum (new_point)); |
| 428 | 4777 } |
| 4778 } | |
| 4779 } | |
| 4780 } | |
| 4781 else /* value == 0 && direction == -1 */ | |
| 4782 { | |
| 4783 if (WINDOW_TEXT_TOP_CLIP (w)) | |
| 4784 { | |
| 4785 WINDOW_TEXT_TOP_CLIP (w) = 0; | |
| 4786 MARK_WINDOWS_CHANGED (w); | |
| 4787 } | |
| 4788 if (marker_position (w->start[CURRENT_DISP]) == BUF_BEGV (b)) | |
| 4789 { | |
| 563 | 4790 maybe_signal_error_1 (Qbeginning_of_buffer, Qnil, Qwindow, errb); |
| 428 | 4791 return; |
| 4792 } | |
| 4793 else | |
| 4794 { | |
| 4795 int vtarget; | |
| 4796 int movement = next_screen_context_lines - 1; | |
| 665 | 4797 Charbpos old_startp = marker_position (w->start[CURRENT_DISP]); |
| 4798 Charbpos bottom = vmotion (w, old_startp, movement, &vtarget); | |
| 4799 Charbpos startp = | |
| 428 | 4800 start_with_point_on_display_line (w, bottom, |
| 4801 -1 - (movement - vtarget)); | |
| 4802 | |
| 4803 if (startp >= old_startp) | |
| 4804 startp = vmotion (w, old_startp, -1, NULL); | |
| 4805 | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4806 set_marker_restricted (w->start[CURRENT_DISP], make_fixnum (startp), |
| 428 | 4807 w->buffer); |
| 4808 w->force_start = 1; | |
| 4809 w->start_at_line_beg = beginning_of_line_p (b, startp); | |
| 4810 MARK_WINDOWS_CHANGED (w); | |
| 4811 | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4812 if (!point_would_be_visible (w, startp, XFIXNUM (point), 0)) |
| 428 | 4813 { |
| 665 | 4814 Charbpos new_point = start_of_last_line (w, startp); |
| 428 | 4815 |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4816 Fset_window_point (wrap_window (w), make_fixnum (new_point)); |
| 428 | 4817 } |
| 4818 } | |
| 4819 } | |
| 4820 } | |
| 4821 | |
| 4822 DEFUN ("scroll-up", Fscroll_up, 0, 1, "_P", /* | |
| 444 | 4823 Scroll text of current window up COUNT lines; or near full screen if no arg. |
| 428 | 4824 A near full screen is `next-screen-context-lines' less than a full screen. |
| 444 | 4825 Negative COUNT means scroll downward. |
| 428 | 4826 When calling from a program, supply an integer as argument or nil. |
| 4827 On attempt to scroll past end of buffer, `end-of-buffer' is signaled. | |
| 4828 On attempt to scroll past beginning of buffer, `beginning-of-buffer' is | |
| 4829 signaled. | |
| 462 | 4830 |
| 4831 The characters that are moved over may be added to the current selection | |
| 4832 \(i.e. active region) if the Shift key is held down, a motion key is used | |
| 4833 to invoke this command, and `shifted-motion-keys-select-region' is t; see | |
| 4834 the documentation for this variable for more details. | |
| 428 | 4835 */ |
| 444 | 4836 (count)) |
| 4837 { | |
| 4838 window_scroll (Fselected_window (Qnil), count, 1, ERROR_ME); | |
| 428 | 4839 return Qnil; |
| 4840 } | |
| 4841 | |
| 4842 DEFUN ("scroll-down", Fscroll_down, 0, 1, "_P", /* | |
| 444 | 4843 Scroll text of current window down COUNT lines; or near full screen if no arg. |
| 428 | 4844 A near full screen is `next-screen-context-lines' less than a full screen. |
| 444 | 4845 Negative COUNT means scroll upward. |
| 428 | 4846 When calling from a program, supply a number as argument or nil. |
| 4847 On attempt to scroll past end of buffer, `end-of-buffer' is signaled. | |
| 4848 On attempt to scroll past beginning of buffer, `beginning-of-buffer' is | |
| 4849 signaled. | |
| 462 | 4850 |
| 4851 The characters that are moved over may be added to the current selection | |
| 4852 \(i.e. active region) if the Shift key is held down, a motion key is used | |
| 4853 to invoke this command, and `shifted-motion-keys-select-region' is t; see | |
| 4854 the documentation for this variable for more details. | |
| 428 | 4855 */ |
| 444 | 4856 (count)) |
| 4857 { | |
| 4858 window_scroll (Fselected_window (Qnil), count, -1, ERROR_ME); | |
| 428 | 4859 return Qnil; |
| 4860 } | |
| 4861 | |
| 4862 DEFUN ("other-window-for-scrolling", Fother_window_for_scrolling, 0, 0, 0, /* | |
| 4863 Return the other window for "other window scroll" commands. | |
| 4864 If in the minibuffer, `minibuffer-scroll-window' if non-nil | |
| 4865 specifies the window. | |
| 4866 If `other-window-scroll-buffer' is non-nil, a window | |
| 4867 showing that buffer is used. | |
| 4868 */ | |
| 4869 ()) | |
| 4870 { | |
| 4871 Lisp_Object window; | |
| 4872 Lisp_Object selected_window = Fselected_window (Qnil); | |
| 4873 | |
| 4874 if (MINI_WINDOW_P (XWINDOW (selected_window)) | |
| 4875 && !NILP (Vminibuffer_scroll_window)) | |
| 4876 window = Vminibuffer_scroll_window; | |
| 4877 /* If buffer is specified, scroll that buffer. */ | |
| 4878 else if (!NILP (Vother_window_scroll_buffer)) | |
| 4879 { | |
| 4880 window = Fget_buffer_window (Vother_window_scroll_buffer, Qnil, Qnil); | |
| 4881 if (NILP (window)) | |
| 4882 window = display_buffer (Vother_window_scroll_buffer, Qt, Qnil); | |
| 4883 } | |
| 4884 else | |
| 4885 { | |
| 4886 /* Nothing specified; look for a neighboring window on the same | |
| 4887 frame. */ | |
| 4888 window = Fnext_window (selected_window, Qnil, Qnil, Qnil); | |
| 4889 | |
| 4890 if (EQ (window, selected_window)) | |
| 4891 /* That didn't get us anywhere; look for a window on another | |
| 4892 visible frame. */ | |
| 4893 do | |
| 4894 window = Fnext_window (window, Qnil, Qt, Qnil); | |
| 4895 while (! FRAME_VISIBLE_P (XFRAME (WINDOW_FRAME (XWINDOW (window)))) | |
| 4896 && ! EQ (window, selected_window)); | |
| 4897 } | |
| 4898 | |
| 4899 CHECK_LIVE_WINDOW (window); | |
| 4900 | |
| 4901 if (EQ (window, selected_window)) | |
| 563 | 4902 invalid_operation ("There is no other window", Qunbound); |
| 428 | 4903 |
| 4904 return window; | |
| 4905 } | |
| 4906 | |
| 4907 DEFUN ("scroll-other-window", Fscroll_other_window, 0, 1, "_P", /* | |
| 444 | 4908 Scroll next window upward COUNT lines; or near full frame if no arg. |
| 428 | 4909 The next window is the one below the current one; or the one at the top |
| 444 | 4910 if the current one is at the bottom. Negative COUNT means scroll downward. |
| 428 | 4911 When calling from a program, supply a number as argument or nil. |
| 4912 | |
| 4913 If in the minibuffer, `minibuffer-scroll-window' if non-nil | |
| 4914 specifies the window to scroll. | |
| 4915 If `other-window-scroll-buffer' is non-nil, scroll the window | |
| 4916 showing that buffer, popping the buffer up if necessary. | |
| 4917 */ | |
| 444 | 4918 (count)) |
| 4919 { | |
| 4920 window_scroll (Fother_window_for_scrolling (), count, 1, ERROR_ME); | |
| 428 | 4921 return Qnil; |
| 4922 } | |
| 4923 | |
| 4924 DEFUN ("scroll-left", Fscroll_left, 0, 1, "_P", /* | |
| 444 | 4925 Scroll selected window display COUNT columns left. |
| 4926 Default for COUNT is window width minus 2. | |
| 462 | 4927 |
| 4928 The characters that are moved over may be added to the current selection | |
| 4929 \(i.e. active region) if the Shift key is held down, a motion key is used | |
| 4930 to invoke this command, and `shifted-motion-keys-select-region' is t; see | |
| 4931 the documentation for this variable for more details. | |
| 428 | 4932 */ |
| 444 | 4933 (count)) |
| 428 | 4934 { |
| 4935 Lisp_Object window = Fselected_window (Qnil); | |
| 4936 struct window *w = XWINDOW (window); | |
| 444 | 4937 int n = (NILP (count) ? |
| 4938 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
|
4939 XFIXNUM (Fprefix_numeric_value (count))); |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4940 |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4941 return Fset_window_hscroll (window, make_fixnum (w->hscroll + n)); |
| 428 | 4942 } |
| 4943 | |
| 4944 DEFUN ("scroll-right", Fscroll_right, 0, 1, "_P", /* | |
| 444 | 4945 Scroll selected window display COUNT columns right. |
| 4946 Default for COUNT is window width minus 2. | |
| 462 | 4947 |
| 4948 The characters that are moved over may be added to the current selection | |
| 4949 \(i.e. active region) if the Shift key is held down, a motion key is used | |
| 4950 to invoke this command, and `shifted-motion-keys-select-region' is t; see | |
| 4951 the documentation for this variable for more details. | |
| 428 | 4952 */ |
| 444 | 4953 (count)) |
| 428 | 4954 { |
| 4955 Lisp_Object window = Fselected_window (Qnil); | |
| 4956 struct window *w = XWINDOW (window); | |
| 444 | 4957 int n = (NILP (count) ? |
| 4958 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
|
4959 XFIXNUM (Fprefix_numeric_value (count))); |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4960 |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4961 return Fset_window_hscroll (window, make_fixnum (w->hscroll - n)); |
| 428 | 4962 } |
| 4963 | |
| 4964 DEFUN ("center-to-window-line", Fcenter_to_window_line, 0, 2, "_P", /* | |
| 4965 Center point in WINDOW. With N, put point on line N. | |
| 4966 The desired position of point is always relative to the window. | |
| 4967 If WINDOW is nil, the selected window is used. | |
| 4968 */ | |
| 4969 (n, window)) | |
| 4970 { | |
| 4971 struct window *w = decode_window (window); | |
| 4972 struct buffer *b = XBUFFER (w->buffer); | |
| 665 | 4973 Charbpos opoint = BUF_PT (b); |
| 4974 Charbpos startp; | |
| 428 | 4975 |
| 4976 if (NILP (n)) | |
| 4977 startp = start_with_line_at_pixpos (w, opoint, window_half_pixpos (w)); | |
| 4978 else | |
| 4979 { | |
| 4980 n = Fprefix_numeric_value (n); | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4981 CHECK_FIXNUM (n); |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4982 startp = start_with_point_on_display_line (w, opoint, XFIXNUM (n)); |
| 428 | 4983 } |
| 4984 | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4985 Fset_marker (w->start[CURRENT_DISP], make_fixnum (startp), w->buffer); |
| 428 | 4986 |
| 4987 w->start_at_line_beg = beginning_of_line_p (b, startp); | |
| 4988 w->force_start = 1; | |
| 4989 MARK_WINDOWS_CHANGED (w); | |
| 4990 return Qnil; | |
| 4991 } | |
| 4992 | |
| 4993 DEFUN ("move-to-window-line", Fmove_to_window_line, 1, 2, "_P", /* | |
| 4994 Position point relative to WINDOW. | |
| 4995 With no argument, position text at center of window. | |
| 4996 An argument specifies window line; zero means top of window, | |
| 4997 negative means relative to bottom of window. | |
| 4998 If WINDOW is nil, the selected window is used. | |
| 4999 */ | |
| 5000 (arg, window)) | |
| 5001 { | |
| 5002 struct window *w; | |
| 5003 struct buffer *b; | |
| 5004 int height; | |
| 665 | 5005 Charbpos start, new_point; |
| 428 | 5006 int selected; |
| 5007 | |
| 5008 /* Don't use decode_window() because we need the new value of | |
| 5009 WINDOW. */ | |
| 5010 if (NILP (window)) | |
| 5011 window = Fselected_window (Qnil); | |
| 5012 else | |
| 5013 CHECK_LIVE_WINDOW (window); | |
| 5014 w = XWINDOW (window); | |
| 5015 b = XBUFFER (w->buffer); | |
| 5016 | |
| 5017 height = window_displayed_height (w); | |
| 5018 selected = EQ (window, Fselected_window (w->frame)); | |
| 5019 | |
| 5020 if (NILP (arg)) | |
| 5021 { | |
| 5022 int retval; | |
| 5023 | |
|
5581
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
5024 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
|
5025 && XFIXNUM (w->last_facechange[CURRENT_DISP]) >= BUF_FACECHANGE (b)) |
| 428 | 5026 { |
| 5027 new_point = point_at_center (w, CURRENT_DISP, 0, 0); | |
| 5028 | |
| 844 | 5029 /* #### Here we are checking the selected window of the frame |
| 5030 instead of the selected window period. Elsewhere we check | |
| 5031 the selected window of the device. What a mess! */ | |
| 428 | 5032 if (selected) |
| 5033 BUF_SET_PT (b, new_point); | |
| 5034 else | |
|
5581
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
5035 Fset_window_point (window, make_fixnum (new_point)); |
| 428 | 5036 |
| 5037 retval = line_at_center (w, CURRENT_DISP, 0, 0); | |
| 5038 } | |
| 5039 else | |
| 5040 { | |
| 5041 start = marker_position (w->start[CURRENT_DISP]); | |
| 5042 if (start < BUF_BEGV (b)) | |
| 5043 start = BUF_BEGV (b); | |
| 5044 else if (start > BUF_ZV (b)) | |
| 5045 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 = point_at_center (w, CMOTION_DISP, start, BUF_PT (b)); | |
| 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)); |
| 428 | 5058 |
| 5059 retval = line_at_center (w, CMOTION_DISP, start, BUF_PT (b)); | |
| 5060 } | |
| 5061 | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
5062 return make_fixnum (retval); |
| 428 | 5063 } |
| 5064 else | |
| 5065 { | |
| 5066 /* #### Is this going to work right when at eob? */ | |
| 5067 arg = Fprefix_numeric_value (arg); | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
5068 if (XFIXNUM (arg) < 0) |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
5069 arg = make_fixnum (XFIXNUM (arg) + height); |
| 428 | 5070 } |
| 5071 | |
| 5072 start = marker_position (w->start[CURRENT_DISP]); | |
| 5073 if (start < BUF_BEGV (b) || start > BUF_ZV (b)) | |
| 5074 { | |
| 5075 if (selected) | |
| 5076 new_point = BUF_PT (b); | |
| 5077 else | |
| 5078 new_point = marker_position (w->pointm[CURRENT_DISP]); | |
| 5079 | |
| 5080 new_point = vmotion (XWINDOW (window), new_point, -height / 2, 0); | |
| 5081 | |
| 5082 if (selected) | |
| 5083 BUF_SET_PT (b, new_point); | |
| 5084 else | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
5085 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
|
5086 |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
5087 Fset_marker (w->start[CURRENT_DISP], make_fixnum (new_point), |
| 428 | 5088 w->buffer); |
| 5089 w->start_at_line_beg = beginning_of_line_p (b, new_point); | |
| 5090 w->force_start = 1; | |
| 5091 } | |
| 5092 else | |
| 5093 { | |
| 5094 if (selected) | |
| 5095 BUF_SET_PT (b, start); | |
| 5096 else | |
|
5581
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
5097 Fset_window_point (window, make_fixnum (start)); |
| 428 | 5098 } |
| 5099 | |
| 5100 if (selected) | |
| 5101 return Fvertical_motion (arg, window, Qnil); | |
| 5102 else | |
| 5103 { | |
| 5104 int vpos; | |
| 5105 new_point = vmotion (XWINDOW (window), | |
| 5106 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
|
5107 XFIXNUM (arg), &vpos); |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
5108 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
|
5109 return make_fixnum (vpos); |
| 428 | 5110 } |
| 5111 } | |
| 5112 | |
| 5113 | |
| 5114 static int | |
| 5115 map_windows_1 (Lisp_Object window, | |
| 5116 int (*mapfun) (struct window *w, void *closure), | |
| 5117 void *closure) | |
| 5118 { | |
| 5119 for (; !NILP (window); window = XWINDOW (window)->next) | |
| 5120 { | |
| 5121 int retval; | |
| 5122 struct window *w = XWINDOW (window); | |
| 5123 | |
| 5124 if (!NILP (w->vchild)) | |
| 5125 retval = map_windows_1 (w->vchild, mapfun, closure); | |
| 5126 else if (!NILP (w->hchild)) | |
| 5127 retval = map_windows_1 (w->hchild, mapfun, closure); | |
| 5128 else | |
| 5129 retval = (mapfun) (w, closure); | |
| 5130 | |
| 5131 if (retval) | |
| 5132 return retval; | |
| 5133 } | |
| 5134 | |
| 5135 return 0; | |
| 5136 } | |
| 5137 | |
| 5138 /* Map MAPFUN over the windows in F. CLOSURE is passed to each | |
| 5139 invocation of MAPFUN. If any invocation of MAPFUN returns | |
| 5140 non-zero, the mapping is halted. Otherwise, map_windows() maps | |
| 5141 over all windows in F. | |
| 5142 | |
| 800 | 5143 If F is null, map over all frames on all devices and consoles. |
| 5144 | |
| 428 | 5145 If MAPFUN creates or deletes windows, the behavior is undefined. */ |
| 5146 | |
| 5147 int | |
| 5148 map_windows (struct frame *f, int (*mapfun) (struct window *w, void *closure), | |
| 5149 void *closure) | |
| 5150 { | |
| 5151 if (f) | |
| 5152 return map_windows_1 (FRAME_ROOT_WINDOW (f), mapfun, closure); | |
| 5153 else | |
| 5154 { | |
| 5155 Lisp_Object frmcons, devcons, concons; | |
| 5156 | |
| 5157 FRAME_LOOP_NO_BREAK(frmcons, devcons, concons) | |
| 5158 { | |
| 5159 int v = map_windows_1 (FRAME_ROOT_WINDOW (XFRAME (XCAR (frmcons))), | |
| 5160 mapfun, closure); | |
| 5161 if (v) | |
| 5162 return v; | |
| 5163 } | |
| 5164 } | |
| 5165 | |
| 5166 return 0; | |
| 5167 } | |
| 5168 | |
| 5169 | |
| 5170 static void | |
| 2286 | 5171 modeline_shadow_thickness_changed (Lisp_Object UNUSED (specifier), |
| 5172 struct window *w, | |
| 5173 Lisp_Object UNUSED (oldval)) | |
| 428 | 5174 { |
| 5175 w->shadow_thickness_changed = 1; | |
| 5176 MARK_WINDOWS_CHANGED (w); | |
| 5177 } | |
| 5178 | |
| 5179 static void | |
| 2286 | 5180 vertical_divider_changed_in_window (Lisp_Object UNUSED (specifier), |
| 428 | 5181 struct window *w, |
| 2286 | 5182 Lisp_Object UNUSED (oldval)) |
| 428 | 5183 { |
| 5184 MARK_WINDOWS_CHANGED (w); | |
| 5185 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (XFRAME (WINDOW_FRAME (w))); | |
| 5186 } | |
| 5187 | |
| 5188 /* also used in scrollbar.c */ | |
| 5189 void | |
| 2286 | 5190 some_window_value_changed (Lisp_Object UNUSED (specifier), |
| 5191 struct window *w, | |
| 5192 Lisp_Object UNUSED (oldval)) | |
| 428 | 5193 { |
| 5194 MARK_WINDOWS_CHANGED (w); | |
| 5195 } | |
| 5196 | |
| 5197 #ifdef MEMORY_USAGE_STATS | |
| 5198 | |
|
5170
5ddbab03b0e6
various fixes to memory-usage stats
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diff
changeset
|
5199 struct window_mirror_stats |
|
5ddbab03b0e6
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diff
changeset
|
5200 { |
|
5ddbab03b0e6
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diff
changeset
|
5201 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
|
5202 /* Ancillary non-lisp */ |
|
5170
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Ben Wing <ben@xemacs.org>
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changeset
|
5203 Bytecount redisplay_structs; |
|
5ddbab03b0e6
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Ben Wing <ben@xemacs.org>
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diff
changeset
|
5204 #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
|
5205 /* Ancillary Lisp */ |
|
5170
5ddbab03b0e6
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Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5206 Bytecount scrollbar; |
|
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5207 #endif |
|
5ddbab03b0e6
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Ben Wing <ben@xemacs.org>
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diff
changeset
|
5208 }; |
|
5ddbab03b0e6
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parents:
5157
diff
changeset
|
5209 |
| 428 | 5210 struct window_stats |
| 5211 { | |
|
5157
1fae11d56ad2
redo memory-usage mechanism, add way of dynamically initializing Lisp objects
Ben Wing <ben@xemacs.org>
parents:
5146
diff
changeset
|
5212 struct usage_stats u; |
|
5170
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5213 /* Ancillary non-Lisp */ |
|
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5214 Bytecount line_start; |
|
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5215 /* 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
|
5216 NEW_GC */ |
|
5157
1fae11d56ad2
redo memory-usage mechanism, add way of dynamically initializing Lisp objects
Ben Wing <ben@xemacs.org>
parents:
5146
diff
changeset
|
5217 Bytecount face; |
|
1fae11d56ad2
redo memory-usage mechanism, add way of dynamically initializing Lisp objects
Ben Wing <ben@xemacs.org>
parents:
5146
diff
changeset
|
5218 Bytecount glyph; |
|
5170
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|
5219 /* The next two are copied out of the window mirror, which is an ancillary |
|
5ddbab03b0e6
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|
5220 Lisp structure; the first is non-Lisp, the second Lisp, but from our |
|
5ddbab03b0e6
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5157
diff
changeset
|
5221 perspective, they are both counted as Lisp */ |
|
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diff
changeset
|
5222 Bytecount redisplay_structs; |
| 428 | 5223 #ifdef HAVE_SCROLLBARS |
|
5157
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diff
changeset
|
5224 Bytecount scrollbar; |
| 428 | 5225 #endif |
|
5170
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changeset
|
5226 /* Remaining memory associated with window mirror (ancillary Lisp) */ |
|
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various fixes to memory-usage stats
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|
5227 Bytecount window_mirror; |
| 428 | 5228 }; |
| 5229 | |
| 5230 static void | |
| 5231 compute_window_mirror_usage (struct window_mirror *mir, | |
|
5170
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diff
changeset
|
5232 struct window_mirror_stats *stats) |
|
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diff
changeset
|
5233 { |
|
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5234 stats->redisplay_structs = |
|
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Ben Wing <ben@xemacs.org>
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diff
changeset
|
5235 compute_display_line_dynarr_usage (mir->current_display_lines, &stats->u) |
|
5ddbab03b0e6
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parents:
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diff
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|
5236 + |
|
5ddbab03b0e6
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parents:
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diff
changeset
|
5237 compute_display_line_dynarr_usage (mir->desired_display_lines, &stats->u); |
| 428 | 5238 #ifdef HAVE_SCROLLBARS |
|
5170
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5157
diff
changeset
|
5239 stats->scrollbar = |
|
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Ben Wing <ben@xemacs.org>
parents:
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diff
changeset
|
5240 compute_all_scrollbar_instance_usage (mir->scrollbar_vertical_instance) + |
|
5ddbab03b0e6
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parents:
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diff
changeset
|
5241 compute_all_scrollbar_instance_usage (mir->scrollbar_horizontal_instance); |
| 428 | 5242 #endif /* HAVE_SCROLLBARS */ |
|
5170
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various fixes to memory-usage stats
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|
5243 } |
|
5ddbab03b0e6
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changeset
|
5244 |
|
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|
5245 |
|
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parents:
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changeset
|
5246 static void |
|
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parents:
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diff
changeset
|
5247 window_mirror_memory_usage (Lisp_Object window_mirror, |
|
5ddbab03b0e6
various fixes to memory-usage stats
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parents:
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diff
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|
5248 struct generic_usage_stats *gustats) |
|
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|
5249 { |
|
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|
5250 struct window_mirror_stats *stats = (struct window_mirror_stats *) gustats; |
|
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changeset
|
5251 |
|
5ddbab03b0e6
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Ben Wing <ben@xemacs.org>
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|
5252 compute_window_mirror_usage (XWINDOW_MIRROR (window_mirror), stats); |
| 428 | 5253 } |
| 5254 | |
| 5255 static void | |
| 5256 compute_window_usage (struct window *w, struct window_stats *stats, | |
|
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|
5257 struct usage_stats *ustats) |
| 428 | 5258 { |
|
5170
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diff
changeset
|
5259 stats->line_start = |
|
5157
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Ben Wing <ben@xemacs.org>
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diff
changeset
|
5260 compute_line_start_cache_dynarr_usage (w->line_start_cache, ustats); |
|
5170
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various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5261 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
|
5262 ustats); |
|
5170
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5263 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
|
5264 ustats); |
|
5170
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5265 { |
|
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
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5157
diff
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|
5266 struct window_mirror *wm; |
|
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
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diff
changeset
|
5267 |
|
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
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diff
changeset
|
5268 wm = find_window_mirror_maybe (w); |
|
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5269 if (wm) |
|
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5270 { |
|
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5271 struct generic_usage_stats gustats; |
|
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5272 struct window_mirror_stats *wmstats; |
|
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5273 Bytecount total; |
|
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5274 total = lisp_object_memory_usage_full (wrap_window_mirror (wm), |
|
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
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diff
changeset
|
5275 NULL, NULL, NULL, &gustats); |
|
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
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changeset
|
5276 wmstats = (struct window_mirror_stats *) &gustats; |
|
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5277 stats->redisplay_structs = wmstats->redisplay_structs; |
|
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5278 total -= stats->redisplay_structs; |
|
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5279 #ifdef HAVE_SCROLLBARS |
|
5ddbab03b0e6
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Ben Wing <ben@xemacs.org>
parents:
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diff
changeset
|
5280 stats->scrollbar = wmstats->scrollbar; |
|
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5281 total -= stats->scrollbar; |
|
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
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5157
diff
changeset
|
5282 #endif |
|
5ddbab03b0e6
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Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5283 stats->window_mirror = total; |
|
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5284 } |
|
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5285 } |
| 428 | 5286 } |
| 5287 | |
|
5157
1fae11d56ad2
redo memory-usage mechanism, add way of dynamically initializing Lisp objects
Ben Wing <ben@xemacs.org>
parents:
5146
diff
changeset
|
5288 static void |
|
1fae11d56ad2
redo memory-usage mechanism, add way of dynamically initializing Lisp objects
Ben Wing <ben@xemacs.org>
parents:
5146
diff
changeset
|
5289 window_memory_usage (Lisp_Object window, struct generic_usage_stats *gustats) |
| 428 | 5290 { |
|
5157
1fae11d56ad2
redo memory-usage mechanism, add way of dynamically initializing Lisp objects
Ben Wing <ben@xemacs.org>
parents:
5146
diff
changeset
|
5291 struct window_stats *stats = (struct window_stats *) gustats; |
|
1fae11d56ad2
redo memory-usage mechanism, add way of dynamically initializing Lisp objects
Ben Wing <ben@xemacs.org>
parents:
5146
diff
changeset
|
5292 |
|
1fae11d56ad2
redo memory-usage mechanism, add way of dynamically initializing Lisp objects
Ben Wing <ben@xemacs.org>
parents:
5146
diff
changeset
|
5293 compute_window_usage (XWINDOW (window), stats, &stats->u); |
| 428 | 5294 } |
| 5295 | |
| 5296 #endif /* MEMORY_USAGE_STATS */ | |
|
5157
1fae11d56ad2
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Ben Wing <ben@xemacs.org>
parents:
5146
diff
changeset
|
5297 |
|
1fae11d56ad2
redo memory-usage mechanism, add way of dynamically initializing Lisp objects
Ben Wing <ben@xemacs.org>
parents:
5146
diff
changeset
|
5298 |
| 428 | 5299 |
| 5300 /* Mark all subwindows of a window as deleted. The argument | |
| 5301 W is actually the subwindow tree of the window in question. */ | |
| 5302 | |
| 5303 void | |
| 5304 delete_all_subwindows (struct window *w) | |
| 5305 { | |
| 5306 if (!NILP (w->next)) delete_all_subwindows (XWINDOW (w->next)); | |
| 5307 if (!NILP (w->vchild)) delete_all_subwindows (XWINDOW (w->vchild)); | |
| 5308 if (!NILP (w->hchild)) delete_all_subwindows (XWINDOW (w->hchild)); | |
| 5309 | |
| 5310 mark_window_as_deleted (w); | |
| 5311 } | |
| 5312 | |
| 1149 | 5313 |
| 2289 | 5314 static int |
| 5315 get_current_pixel_pos (Lisp_Object window, Lisp_Object pos, | |
| 5316 struct window **w, | |
| 5317 struct rune **rb, struct display_line **dl) | |
| 428 | 5318 { |
| 2289 | 5319 display_line_dynarr *dla; |
| 5320 struct display_block *db = NULL; | |
| 5321 int x, y; | |
| 5322 | |
| 5323 *rb = NULL; | |
| 5324 *dl = NULL; | |
| 5325 *w = decode_window (window); | |
| 5326 dla = window_display_lines (*w, CURRENT_DISP); | |
| 5327 x = (*w)->last_point_x[CURRENT_DISP]; | |
| 5328 y = (*w)->last_point_y[CURRENT_DISP]; | |
| 5329 if (MINI_WINDOW_P (*w)) | |
| 5330 return 0; | |
| 428 | 5331 |
| 5332 if (y<0 || x<0 || y >= Dynarr_length (dla) || !NILP (pos)) | |
| 5333 { | |
| 5334 int first_line, i; | |
| 665 | 5335 Charbpos point; |
| 428 | 5336 |
| 5337 if (NILP (pos)) | |
| 5338 pos = Fwindow_point (window); | |
| 438 | 5339 |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
5340 CHECK_FIXNUM (pos); |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
5341 point = XFIXNUM (pos); |
| 428 | 5342 |
| 4967 | 5343 if (Dynarr_length (dla) && Dynarr_begin (dla)->modeline) |
| 428 | 5344 first_line = 1; |
| 5345 else | |
| 5346 first_line = 0; | |
| 5347 | |
| 5348 for (i = first_line; i < Dynarr_length (dla); i++) | |
| 5349 { | |
| 2289 | 5350 *dl = Dynarr_atp (dla, i); |
| 428 | 5351 /* find the vertical location first */ |
| 2289 | 5352 if (point >= (*dl)->charpos && point <= (*dl)->end_charpos) |
| 428 | 5353 { |
| 2289 | 5354 db = get_display_block_from_line (*dl, TEXT); |
| 428 | 5355 for (i = 0; i < Dynarr_length (db->runes); i++) |
| 5356 { | |
| 2289 | 5357 *rb = Dynarr_atp (db->runes, i); |
| 2290 | 5358 if (point <= (*rb)->charpos) |
| 826 | 5359 goto found_charpos; |
| 428 | 5360 } |
| 2289 | 5361 return 0; |
| 428 | 5362 } |
| 5363 } | |
| 2289 | 5364 return 0; |
| 826 | 5365 found_charpos: |
| 428 | 5366 ; |
| 5367 } | |
| 5368 else | |
| 5369 { | |
| 442 | 5370 /* optimized case */ |
| 2289 | 5371 *dl = Dynarr_atp (dla, y); |
| 5372 db = get_display_block_from_line (*dl, TEXT); | |
| 428 | 5373 |
| 5374 if (x >= Dynarr_length (db->runes)) | |
| 2289 | 5375 return 0; |
| 5376 | |
| 5377 *rb = Dynarr_atp (db->runes, x); | |
| 428 | 5378 } |
| 5379 | |
| 2289 | 5380 return 1; |
| 5381 } | |
| 5382 | |
| 5383 DEFUN ("current-pixel-column", Fcurrent_pixel_column, 0, 2, 0, /* | |
| 5384 Return the horizontal pixel position of point POS in window. | |
| 5385 Beginning of line is column 0. If WINDOW is nil, the current window | |
| 5386 is assumed. If POS is nil, point is assumed. Note that POS must be | |
| 5387 visible for a non-nil result to be returned. This is calculated using | |
| 5388 the redisplay display tables; because of this, the returned value will | |
| 5389 only be correct if the redisplay tables are up-to-date. Use | |
| 5390 \"(sit-for 0)\" to insure that they are; however, if WINDOW is part of | |
| 5391 a new frame, use the following instead: | |
| 5392 (while (not (frame-visible-p frame)) (sleep-for .5)) | |
| 5393 */ | |
| 5394 (window, pos)) | |
| 5395 { | |
| 5396 struct window* w; | |
| 5397 struct display_line *dl; | |
| 5398 struct rune* rb; | |
| 5399 | |
| 5400 if (!get_current_pixel_pos(window, pos, &w, &rb, &dl)) | |
| 5401 return Qnil; | |
| 5402 | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
5403 return make_fixnum (rb->xpos - WINDOW_LEFT (w)); |
| 428 | 5404 } |
| 5405 | |
| 2289 | 5406 DEFUN ("current-pixel-row", Fcurrent_pixel_row, 0, 2, 0, /* |
| 5407 Return the vertical pixel position of point POS in window. Top of | |
| 5408 window is row 0. If WINDOW is nil, the current window is assumed. If | |
| 5409 POS is nil, point is assumed. Note that POS must be visible for a | |
| 5410 non-nil result to be returned. This is calculated using the redisplay | |
| 5411 display tables; because of this, the returned value will only be | |
| 5412 correct if the redisplay tables are up-to-date. Use \"(sit-for 0)\" | |
| 5413 to insure that they are; however, if WINDOW is part of a new frame, | |
| 5414 use the following instead: | |
| 5415 (while (not (frame-visible-p frame)) (sleep-for .5)) | |
| 5416 */ | |
| 5417 (window, pos)) | |
| 5418 { | |
| 5419 struct window* w; | |
| 5420 struct display_line *dl; | |
| 5421 struct rune* rb; | |
| 5422 | |
| 5423 if (!get_current_pixel_pos(window, pos, &w, &rb, &dl)) | |
| 5424 return Qnil; | |
| 5425 | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
5426 return make_fixnum (dl->ypos - dl->ascent - WINDOW_TOP (w)); |
| 2289 | 5427 } |
| 5428 | |
| 428 | 5429 |
| 5430 #ifdef DEBUG_XEMACS | |
| 5431 /* This is short and simple in elisp, but... it was written to debug | |
| 5432 problems purely on the C side. That is where we need to call it so | |
| 5433 here it is. */ | |
| 5434 static void | |
| 5435 debug_print_window (Lisp_Object window, int level) | |
| 5436 { | |
| 5437 int i; | |
| 5438 Lisp_Object child = Fwindow_first_vchild (window); | |
| 5439 | |
| 5440 if (NILP (child)) | |
| 5441 child = Fwindow_first_hchild (window); | |
| 5442 | |
| 5443 for (i = level; i > 0; i--) | |
| 442 | 5444 stderr_out ("\t"); |
| 5445 | |
| 5446 stderr_out ("#<window"); | |
| 428 | 5447 { |
| 5448 Lisp_Object buffer = XWINDOW (window)->buffer; | |
| 5449 if (!NILP (buffer) && BUFFERP (buffer)) | |
| 442 | 5450 stderr_out (" on %s", XSTRING_DATA (XBUFFER (buffer)->name)); |
| 428 | 5451 } |
|
5146
88bd4f3ef8e4
make lrecord UID's have a separate UID space for each object, resurrect debug SOE code in extents.c
Ben Wing <ben@xemacs.org>
parents:
5142
diff
changeset
|
5452 stderr_out (" 0x%x>", LISP_OBJECT_UID (window)); |
| 428 | 5453 |
| 5454 while (!NILP (child)) | |
| 5455 { | |
| 5456 debug_print_window (child, level + 1); | |
| 5457 child = Fwindow_next_child (child); | |
| 5458 } | |
| 5459 } | |
| 5460 | |
| 5461 void debug_print_windows (struct frame *f); | |
| 5462 void | |
| 5463 debug_print_windows (struct frame *f) | |
| 5464 { | |
| 5465 debug_print_window (f->root_window, 0); | |
| 5466 putc ('\n', stderr); | |
| 5467 } | |
| 5468 #endif /* DEBUG_XEMACS */ | |
| 5469 | |
| 5470 | |
| 5471 /************************************************************************/ | |
| 5472 /* initialization */ | |
| 5473 /************************************************************************/ | |
| 5474 | |
| 5475 void | |
|
5157
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5146
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changeset
|
5476 window_objects_create (void) |
|
1fae11d56ad2
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5146
diff
changeset
|
5477 { |
|
1fae11d56ad2
redo memory-usage mechanism, add way of dynamically initializing Lisp objects
Ben Wing <ben@xemacs.org>
parents:
5146
diff
changeset
|
5478 #ifdef MEMORY_USAGE_STATS |
|
1fae11d56ad2
redo memory-usage mechanism, add way of dynamically initializing Lisp objects
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5146
diff
changeset
|
5479 OBJECT_HAS_METHOD (window, memory_usage); |
|
5170
5ddbab03b0e6
various fixes to memory-usage stats
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parents:
5157
diff
changeset
|
5480 OBJECT_HAS_METHOD (window_mirror, memory_usage); |
|
5157
1fae11d56ad2
redo memory-usage mechanism, add way of dynamically initializing Lisp objects
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5146
diff
changeset
|
5481 #endif |
|
1fae11d56ad2
redo memory-usage mechanism, add way of dynamically initializing Lisp objects
Ben Wing <ben@xemacs.org>
parents:
5146
diff
changeset
|
5482 } |
|
1fae11d56ad2
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changeset
|
5483 |
|
1fae11d56ad2
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parents:
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diff
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|
5484 void |
| 428 | 5485 syms_of_window (void) |
| 5486 { | |
|
5117
3742ea8250b5
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parents:
3078
diff
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|
5487 INIT_LISP_OBJECT (window); |
|
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|
5488 INIT_LISP_OBJECT (window_mirror); |
| 3092 | 5489 #ifdef NEW_GC |
|
5118
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|
5490 INIT_LISP_OBJECT (face_cachel); |
|
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Ben Wing <ben@xemacs.org>
diff
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|
5491 INIT_LISP_OBJECT (face_cachel_dynarr); |
|
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Ben Wing <ben@xemacs.org>
diff
changeset
|
5492 INIT_LISP_OBJECT (glyph_cachel); |
|
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diff
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|
5493 INIT_LISP_OBJECT (glyph_cachel_dynarr); |
| 3092 | 5494 #endif /* NEW_GC */ |
| 442 | 5495 |
| 563 | 5496 DEFSYMBOL (Qwindowp); |
| 5497 DEFSYMBOL (Qwindow_live_p); | |
| 5498 DEFSYMBOL (Qdisplay_buffer); | |
| 428 | 5499 |
| 5500 #ifdef MEMORY_USAGE_STATS | |
| 563 | 5501 DEFSYMBOL (Qface_cache); |
| 5502 DEFSYMBOL (Qglyph_cache); | |
| 5503 DEFSYMBOL (Qline_start_cache); | |
| 428 | 5504 #ifdef HAVE_SCROLLBARS |
| 563 | 5505 DEFSYMBOL (Qscrollbar_instances); |
| 428 | 5506 #endif |
|
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|
5507 DEFSYMBOL (Qredisplay_structs); |
| 428 | 5508 #endif |
| 5509 | |
| 707 | 5510 DEFSYMBOL (Qtruncate_partial_width_windows); |
| 1149 | 5511 DEFSYMBOL (Qcurrent_window_configuration); |
| 5512 DEFSYMBOL (Qset_window_configuration); | |
| 707 | 5513 |
| 428 | 5514 DEFSUBR (Fselected_window); |
| 5515 DEFSUBR (Flast_nonminibuf_window); | |
| 5516 DEFSUBR (Fminibuffer_window); | |
| 5517 DEFSUBR (Fwindow_minibuffer_p); | |
| 5518 DEFSUBR (Fwindowp); | |
| 5519 DEFSUBR (Fwindow_live_p); | |
| 5520 DEFSUBR (Fwindow_first_hchild); | |
| 5521 DEFSUBR (Fwindow_first_vchild); | |
| 5522 DEFSUBR (Fwindow_next_child); | |
| 5523 DEFSUBR (Fwindow_previous_child); | |
| 5524 DEFSUBR (Fwindow_parent); | |
| 5525 DEFSUBR (Fwindow_lowest_p); | |
| 5526 DEFSUBR (Fwindow_truncated_p); | |
| 5527 DEFSUBR (Fwindow_highest_p); | |
| 5528 DEFSUBR (Fwindow_leftmost_p); | |
| 5529 DEFSUBR (Fwindow_rightmost_p); | |
| 5530 DEFSUBR (Fpos_visible_in_window_p); | |
| 5531 DEFSUBR (Fwindow_buffer); | |
| 5532 DEFSUBR (Fwindow_frame); | |
| 5533 DEFSUBR (Fwindow_height); | |
| 5534 DEFSUBR (Fwindow_displayed_height); | |
| 5535 DEFSUBR (Fwindow_width); | |
| 442 | 5536 DEFSUBR (Fwindow_full_width); |
| 428 | 5537 DEFSUBR (Fwindow_pixel_height); |
| 5538 DEFSUBR (Fwindow_pixel_width); | |
| 442 | 5539 DEFSUBR (Fwindow_text_area_height); |
| 428 | 5540 DEFSUBR (Fwindow_text_area_pixel_height); |
| 5541 DEFSUBR (Fwindow_displayed_text_pixel_height); | |
| 5542 DEFSUBR (Fwindow_text_area_pixel_width); | |
| 5543 DEFSUBR (Fwindow_hscroll); | |
| 438 | 5544 DEFSUBR (Fset_window_hscroll); |
| 428 | 5545 DEFSUBR (Fmodeline_hscroll); |
| 5546 DEFSUBR (Fset_modeline_hscroll); | |
| 5547 DEFSUBR (Fwindow_pixel_edges); | |
| 5548 DEFSUBR (Fwindow_text_area_pixel_edges); | |
| 5549 DEFSUBR (Fwindow_point); | |
| 5550 DEFSUBR (Fwindow_start); | |
| 5551 DEFSUBR (Fwindow_end); | |
| 442 | 5552 DEFSUBR (Fwindow_last_line_visible_height); |
| 428 | 5553 DEFSUBR (Fset_window_point); |
| 5554 DEFSUBR (Fset_window_start); | |
| 5555 DEFSUBR (Fwindow_dedicated_p); | |
| 5556 DEFSUBR (Fset_window_dedicated_p); | |
| 5557 DEFSUBR (Fnext_window); | |
| 5558 DEFSUBR (Fprevious_window); | |
| 5559 DEFSUBR (Fnext_vertical_window); | |
| 5560 DEFSUBR (Fother_window); | |
| 5561 DEFSUBR (Fget_lru_window); | |
| 5562 DEFSUBR (Fget_largest_window); | |
| 5563 DEFSUBR (Fget_buffer_window); | |
| 5564 DEFSUBR (Fwindow_left_margin_pixel_width); | |
| 5565 DEFSUBR (Fwindow_right_margin_pixel_width); | |
| 5566 DEFSUBR (Fdelete_other_windows); | |
| 5567 DEFSUBR (Fdelete_windows_on); | |
| 5568 DEFSUBR (Freplace_buffer_in_windows); | |
| 5569 DEFSUBR (Fdelete_window); | |
| 5570 DEFSUBR (Fset_window_buffer); | |
| 5571 DEFSUBR (Fselect_window); | |
| 5572 DEFSUBR (Fsplit_window); | |
| 5573 DEFSUBR (Fenlarge_window); | |
| 5574 DEFSUBR (Fenlarge_window_pixels); | |
| 5575 DEFSUBR (Fshrink_window); | |
| 5576 DEFSUBR (Fshrink_window_pixels); | |
| 5577 DEFSUBR (Fscroll_up); | |
| 5578 DEFSUBR (Fscroll_down); | |
| 5579 DEFSUBR (Fscroll_left); | |
| 5580 DEFSUBR (Fscroll_right); | |
| 5581 DEFSUBR (Fother_window_for_scrolling); | |
| 5582 DEFSUBR (Fscroll_other_window); | |
| 5583 DEFSUBR (Fcenter_to_window_line); | |
| 5584 DEFSUBR (Fmove_to_window_line); | |
| 5585 DEFSUBR (Fcurrent_pixel_column); | |
| 2289 | 5586 DEFSUBR (Fcurrent_pixel_row); |
| 428 | 5587 } |
| 5588 | |
| 5589 void | |
| 5590 reinit_vars_of_window (void) | |
| 5591 { | |
| 5592 /* Make sure all windows get marked */ | |
| 5593 minibuf_window = Qnil; | |
| 5594 staticpro_nodump (&minibuf_window); | |
| 5595 } | |
| 5596 | |
| 5597 void | |
| 5598 vars_of_window (void) | |
| 5599 { | |
|
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|
5600 #ifdef MEMORY_USAGE_STATS |
|
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|
5601 Lisp_Object l; |
|
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|
5602 |
|
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|
5603 l = listu (Qline_start_cache, |
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|
5604 #ifdef NEW_GC |
|
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|
5605 Qt, |
|
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|
5606 #endif |
|
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|
5607 Qface_cache, Qglyph_cache, |
|
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|
5608 #ifndef NEW_GC |
|
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|
5609 Qt, |
|
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|
5610 #endif |
|
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|
5611 Qredisplay_structs, |
|
5164
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Fix broken compile of window.c under Visual Studio 6.
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parents:
5157
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|
5612 #ifdef HAVE_SCROLLBARS |
|
5170
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|
5613 Qscrollbar_instances, |
|
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|
5614 #endif |
|
5170
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|
5615 intern ("window-mirror"), |
|
5ddbab03b0e6
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changeset
|
5616 Qunbound); |
|
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|
5617 |
|
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|
5618 OBJECT_HAS_PROPERTY (window, memusage_stats_list, l); |
|
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parents:
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|
5619 |
|
5ddbab03b0e6
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diff
changeset
|
5620 l = listu (Qredisplay_structs, |
|
5ddbab03b0e6
various fixes to memory-usage stats
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parents:
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diff
changeset
|
5621 #ifdef HAVE_SCROLLBARS |
|
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parents:
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diff
changeset
|
5622 Qt, Qscrollbar_instances, |
|
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|
5623 #endif |
|
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Ben Wing <ben@xemacs.org>
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|
5624 Qunbound); |
|
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parents:
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diff
changeset
|
5625 OBJECT_HAS_PROPERTY (window_mirror, memusage_stats_list, l); |
|
5157
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redo memory-usage mechanism, add way of dynamically initializing Lisp objects
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diff
changeset
|
5626 #endif /* MEMORY_USAGE_STATS */ |
|
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parents:
5146
diff
changeset
|
5627 |
| 428 | 5628 DEFVAR_BOOL ("scroll-on-clipped-lines", &scroll_on_clipped_lines /* |
| 5629 *Non-nil means to scroll if point lands on a line which is clipped. | |
| 5630 */ ); | |
| 5631 scroll_on_clipped_lines = 1; | |
| 5632 | |
| 5633 DEFVAR_LISP ("temp-buffer-show-function", &Vtemp_buffer_show_function /* | |
| 5634 Non-nil means call as function to display a help buffer. | |
| 5635 The function is called with one argument, the buffer to be displayed. | |
| 5636 Used by `with-output-to-temp-buffer'. | |
| 5637 If this function is used, then it must do the entire job of showing | |
| 5638 the buffer; `temp-buffer-show-hook' is not run unless this function runs it. | |
| 442 | 5639 \(`temp-buffer-show-hook' is obsolete. Do not use in new code.) |
| 428 | 5640 */ ); |
| 5641 Vtemp_buffer_show_function = Qnil; | |
| 5642 | |
| 5643 DEFVAR_LISP ("minibuffer-scroll-window", &Vminibuffer_scroll_window /* | |
| 5644 Non-nil means it is the window that \\<minibuffer-local-map>\\[scroll-other-window] in minibuffer should scroll. | |
| 5645 */ ); | |
| 5646 Vminibuffer_scroll_window = Qnil; | |
| 5647 | |
| 5648 DEFVAR_LISP ("other-window-scroll-buffer", &Vother_window_scroll_buffer /* | |
| 5649 If non-nil, this is a buffer and \\[scroll-other-window] should scroll its window. | |
| 5650 */ ); | |
| 5651 Vother_window_scroll_buffer = Qnil; | |
| 5652 | |
| 5653 DEFVAR_LISP ("window-pixel-scroll-increment", &Vwindow_pixel_scroll_increment /* | |
| 5654 *Number of pixels to scroll by per requested line. | |
| 5655 If nil then normal line scrolling occurs regardless of line height. | |
| 5656 If t then scrolling is done in increments equal to the height of the default face. | |
| 5657 */ ); | |
| 5658 Vwindow_pixel_scroll_increment = Qt; | |
| 5659 | |
| 5660 DEFVAR_INT ("next-screen-context-lines", &next_screen_context_lines /* | |
| 5661 *Number of lines of continuity when scrolling by screenfuls. | |
| 5662 */ ); | |
| 5663 next_screen_context_lines = 2; | |
| 5664 | |
| 5665 DEFVAR_INT ("window-min-height", &window_min_height /* | |
| 5666 *Delete any window less than this tall (including its modeline). | |
| 5667 */ ); | |
| 5668 window_min_height = 4; | |
| 5669 | |
| 5670 DEFVAR_INT ("window-min-width", &window_min_width /* | |
| 5671 *Delete any window less than this wide. | |
| 5672 */ ); | |
| 5673 window_min_width = 10; | |
| 5674 } | |
| 5675 | |
| 5676 void | |
| 5677 specifier_vars_of_window (void) | |
| 5678 { | |
| 5679 DEFVAR_SPECIFIER ("modeline-shadow-thickness", &Vmodeline_shadow_thickness /* | |
| 5680 *How thick to draw 3D shadows around modelines. | |
| 5681 If this is set to 0, modelines will be the traditional 2D. Sizes above | |
| 5682 10 will be accepted but the maximum thickness that will be drawn is 10. | |
| 5683 This is a specifier; use `set-specifier' to change it. | |
| 5684 */ ); | |
| 5685 Vmodeline_shadow_thickness = Fmake_specifier (Qinteger); | |
| 5686 /* The initial value for modeline-shadow-thickness is 2, but if the | |
| 5687 user removes all specifications we provide a fallback value of 0, | |
| 5688 which is probably what was expected. */ | |
| 5689 set_specifier_fallback (Vmodeline_shadow_thickness, | |
| 5690 list1 (Fcons (Qnil, Qzero))); | |
|
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Aidan Kehoe <kehoea@parhasard.net>
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5474
diff
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|
5691 Fadd_spec_to_specifier (Vmodeline_shadow_thickness, make_fixnum (2), |
| 428 | 5692 Qnil, Qnil, Qnil); |
| 5693 set_specifier_caching (Vmodeline_shadow_thickness, | |
| 438 | 5694 offsetof (struct window, modeline_shadow_thickness), |
| 428 | 5695 modeline_shadow_thickness_changed, |
| 444 | 5696 0, 0, 0); |
| 428 | 5697 |
| 5698 DEFVAR_SPECIFIER ("has-modeline-p", &Vhas_modeline_p /* | |
| 5699 *Whether the modeline should be displayed. | |
| 5700 This is a specifier; use `set-specifier' to change it. | |
| 5701 */ ); | |
| 5702 Vhas_modeline_p = Fmake_specifier (Qboolean); | |
| 5703 set_specifier_fallback (Vhas_modeline_p, | |
| 5704 list1 (Fcons (Qnil, Qt))); | |
| 5705 set_specifier_caching (Vhas_modeline_p, | |
| 438 | 5706 offsetof (struct window, has_modeline_p), |
| 428 | 5707 /* #### It's strange that we need a special |
| 5708 flag to indicate that the shadow-thickness | |
| 5709 has changed, but not one to indicate that | |
| 5710 the modeline has been turned off or on. */ | |
| 5711 some_window_value_changed, | |
| 444 | 5712 0, 0, 0); |
| 428 | 5713 |
| 5714 DEFVAR_SPECIFIER ("vertical-divider-always-visible-p", | |
| 5715 &Vvertical_divider_always_visible_p /* | |
| 5716 *Should XEmacs always display vertical dividers between windows. | |
| 5717 | |
| 5718 When this is non-nil, vertical dividers are always shown, and are | |
| 5719 draggable. When it is nil, vertical dividers are shown only when | |
| 5720 there are no scrollbars in between windows, and are not draggable. | |
| 5721 | |
| 5722 This is a specifier; use `set-specifier' to change it. | |
| 5723 */ ); | |
| 5724 Vvertical_divider_always_visible_p = Fmake_specifier (Qboolean); | |
| 5725 set_specifier_fallback (Vvertical_divider_always_visible_p, | |
| 5726 list1 (Fcons (Qnil, Qt))); | |
| 5727 set_specifier_caching (Vvertical_divider_always_visible_p, | |
| 438 | 5728 offsetof (struct window, |
| 5729 vertical_divider_always_visible_p), | |
| 428 | 5730 vertical_divider_changed_in_window, |
| 444 | 5731 0, 0, 0); |
| 428 | 5732 |
| 5733 DEFVAR_SPECIFIER ("vertical-divider-shadow-thickness", &Vvertical_divider_shadow_thickness /* | |
| 5734 *How thick to draw 3D shadows around vertical dividers. | |
| 5735 This is a specifier; use `set-specifier' to change it. | |
| 5736 */ ); | |
| 5737 Vvertical_divider_shadow_thickness = Fmake_specifier (Qinteger); | |
| 5738 set_specifier_fallback (Vvertical_divider_shadow_thickness, | |
| 5739 list1 (Fcons (Qnil, Qzero))); | |
|
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changeset
|
5740 Fadd_spec_to_specifier (Vvertical_divider_shadow_thickness, make_fixnum (2), |
| 428 | 5741 Qnil, Qnil, Qnil); |
| 5742 set_specifier_caching (Vvertical_divider_shadow_thickness, | |
| 438 | 5743 offsetof (struct window, |
| 5744 vertical_divider_shadow_thickness), | |
| 428 | 5745 vertical_divider_changed_in_window, |
| 444 | 5746 0, 0, 0); |
| 428 | 5747 DEFVAR_SPECIFIER ("vertical-divider-line-width", &Vvertical_divider_line_width /* |
| 5748 *The width of the vertical dividers, not including shadows. | |
| 5749 | |
| 5750 For TTY windows, divider line is always one character wide. When | |
| 5751 instance of this specifier is zero in a TTY window, no divider is | |
| 5752 drawn at all between windows. When non-zero, a one character wide | |
| 5753 divider is displayed. | |
| 5754 | |
| 5755 This is a specifier; use `set-specifier' to change it. | |
| 5756 */ ); | |
| 5757 | |
| 5758 Vvertical_divider_line_width = Fmake_specifier (Qnatnum); | |
| 5759 { | |
| 5760 Lisp_Object fb = Qnil; | |
| 5761 #ifdef HAVE_TTY | |
|
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|
5762 fb = Fcons (Fcons (list1 (Qtty), make_fixnum (1)), fb); |
| 428 | 5763 #endif |
| 462 | 5764 #ifdef HAVE_GTK |
|
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diff
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|
5765 fb = Fcons (Fcons (list1 (Qgtk), make_fixnum (3)), fb); |
| 462 | 5766 #endif |
| 428 | 5767 #ifdef HAVE_X_WINDOWS |
|
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|
5768 fb = Fcons (Fcons (list1 (Qx), make_fixnum (3)), fb); |
| 428 | 5769 #endif |
| 5770 #ifdef HAVE_MS_WINDOWS | |
| 5771 /* #### This should be made magic and made to obey system settings */ | |
|
5581
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5474
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changeset
|
5772 fb = Fcons (Fcons (list1 (Qmswindows), make_fixnum (3)), fb); |
| 428 | 5773 #endif |
| 5774 set_specifier_fallback (Vvertical_divider_line_width, fb); | |
| 5775 } | |
| 5776 set_specifier_caching (Vvertical_divider_line_width, | |
| 438 | 5777 offsetof (struct window, |
| 5778 vertical_divider_line_width), | |
| 428 | 5779 vertical_divider_changed_in_window, |
| 444 | 5780 0, 0, 0); |
| 428 | 5781 |
| 5782 DEFVAR_SPECIFIER ("vertical-divider-spacing", &Vvertical_divider_spacing /* | |
| 5783 *How much space to leave around the vertical dividers. | |
| 5784 | |
| 5785 In TTY windows, spacing is always zero, and the value of this | |
| 5786 specifier is ignored. | |
| 5787 | |
| 5788 This is a specifier; use `set-specifier' to change it. | |
| 5789 */ ); | |
| 5790 Vvertical_divider_spacing = Fmake_specifier (Qnatnum); | |
| 5791 { | |
| 5792 Lisp_Object fb = Qnil; | |
| 5793 #ifdef HAVE_TTY | |
| 5794 fb = Fcons (Fcons (list1 (Qtty), Qzero), fb); | |
| 5795 #endif | |
| 5796 #ifdef HAVE_X_WINDOWS | |
| 5797 /* #### 3D dividers look great on MS Windows with spacing = 0. | |
| 5798 Should not the same value be the fallback under X? - kkm */ | |
|
5581
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5474
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changeset
|
5799 fb = Fcons (Fcons (list1 (Qx), make_fixnum (2)), fb); |
| 428 | 5800 #endif |
| 462 | 5801 #ifdef HAVE_GTK |
| 5802 fb = Fcons (Fcons (list1 (Qgtk), Qzero), fb); | |
| 5803 #endif | |
| 428 | 5804 #ifdef HAVE_MS_WINDOWS |
| 5805 fb = Fcons (Fcons (list1 (Qmswindows), Qzero), fb); | |
| 5806 #endif | |
| 5807 set_specifier_fallback (Vvertical_divider_spacing, fb); | |
| 5808 } | |
| 5809 set_specifier_caching (Vvertical_divider_spacing, | |
| 438 | 5810 offsetof (struct window, vertical_divider_spacing), |
| 428 | 5811 vertical_divider_changed_in_window, |
| 444 | 5812 0, 0, 0); |
| 5813 } |