Mercurial > hg > xemacs-beta
annotate src/window.c @ 5143:186aebf7f6c6
merge
| author | Ben Wing <ben@xemacs.org> |
|---|---|
| date | Sat, 13 Mar 2010 11:38:54 -0600 |
| parents | f965e31a35f0 |
| children | 88bd4f3ef8e4 |
| rev | line source |
|---|---|
| 428 | 1 /* Window creation, deletion and examination for XEmacs. |
| 2 Copyright (C) 1985-1987, 1992-1995 Free Software Foundation, Inc. | |
| 3 Copyright (C) 1994, 1995 Board of Trustees, University of Illinois. | |
| 5043 | 4 Copyright (C) 1995, 1996, 2002, 2010 Ben Wing. |
| 428 | 5 Copyright (C) 1996 Chuck Thompson. |
| 6 | |
| 7 This file is part of XEmacs. | |
| 8 | |
| 9 XEmacs is free software; you can redistribute it and/or modify it | |
| 10 under the terms of the GNU General Public License as published by the | |
| 11 Free Software Foundation; either version 2, or (at your option) any | |
| 12 later version. | |
| 13 | |
| 14 XEmacs is distributed in the hope that it will be useful, but WITHOUT | |
| 15 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 17 for more details. | |
| 18 | |
| 19 You should have received a copy of the GNU General Public License | |
| 20 along with XEmacs; see the file COPYING. If not, write to | |
| 21 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 22 Boston, MA 02111-1307, USA. */ | |
| 23 | |
| 24 /* Synched up with: FSF 19.30. */ | |
| 25 /* Beginning to diverge significantly. */ | |
| 26 | |
| 853 | 27 /* Authorship: |
| 28 | |
| 29 Based on code from pre-release FSF 19, c. 1991. | |
| 30 Significantly reworked by Chuck Thompson, 1993-1996. | |
| 31 window mirror stuff added by Chuck Thompson c. 1993. | |
| 32 various cleanup by Ben Wing c. 1995 (window slots, window init code, | |
| 33 memory usage, synch. up to FSF 19.30, other). | |
| 34 Unknown work by Andy Piper. | |
| 35 new window-width/height fns. by Ben Wing, Mar 2000. */ | |
| 36 | |
| 428 | 37 /* This file has been Mule-ized. */ |
| 38 | |
| 39 #include <config.h> | |
| 40 #include "lisp.h" | |
| 41 | |
| 42 #include "buffer.h" | |
| 800 | 43 #include "commands.h" |
| 872 | 44 #include "device-impl.h" |
| 800 | 45 #include "elhash.h" |
| 428 | 46 #include "faces.h" |
| 872 | 47 #include "frame-impl.h" |
| 800 | 48 #include "glyphs.h" |
| 49 #include "gutter.h" | |
| 428 | 50 #include "objects.h" |
| 51 #include "redisplay.h" | |
| 872 | 52 #include "window-impl.h" |
| 428 | 53 |
| 1149 | 54 Lisp_Object Qwindowp, Qwindow_live_p; |
| 428 | 55 Lisp_Object Qdisplay_buffer; |
| 56 | |
| 57 #ifdef MEMORY_USAGE_STATS | |
| 58 Lisp_Object Qface_cache, Qglyph_cache, Qline_start_cache, Qother_redisplay; | |
| 59 #ifdef HAVE_SCROLLBARS | |
| 60 Lisp_Object Qscrollbar_instances; | |
| 61 #endif | |
| 62 #endif | |
| 63 | |
| 1979 | 64 extern int allow_deletion_of_last_visible_frame; |
| 65 | |
| 428 | 66 EXFUN (Fnext_window, 4); |
| 67 | |
| 68 static int window_pixel_width_to_char_width (struct window *w, | |
| 69 int pixel_width, | |
| 70 int include_margins_p); | |
| 71 static int window_char_width_to_pixel_width (struct window *w, | |
| 72 int char_width, | |
| 73 int include_margins_p); | |
| 74 static int window_pixel_height_to_char_height (struct window *w, | |
| 75 int pixel_height, | |
| 76 int include_gutters_p); | |
| 77 static int window_char_height_to_pixel_height (struct window *w, | |
| 78 int char_height, | |
| 79 int include_gutters_p); | |
| 444 | 80 static void change_window_height (Lisp_Object window, int delta, |
| 81 Lisp_Object horizontalp, int inpixels); | |
| 428 | 82 |
| 83 /* Thickness of shadow border around 3d modelines. */ | |
| 84 Lisp_Object Vmodeline_shadow_thickness; | |
| 85 | |
| 86 /* Whether vertical dividers are draggable and displayed */ | |
| 87 Lisp_Object Vvertical_divider_always_visible_p; | |
| 88 | |
| 89 /* Whether a modeline should be displayed. */ | |
| 90 Lisp_Object Vhas_modeline_p; | |
| 91 | |
| 92 /* Thickness of shadow border around vertical dividers. */ | |
| 93 Lisp_Object Vvertical_divider_shadow_thickness; | |
| 94 | |
| 95 /* Divider surface width (not counting 3-d borders) */ | |
| 96 Lisp_Object Vvertical_divider_line_width; | |
| 97 | |
| 442 | 98 /* Spacing between outer edge of divider border and window edge */ |
| 428 | 99 Lisp_Object Vvertical_divider_spacing; |
| 100 | |
| 101 /* How much to scroll by per-line. */ | |
| 102 Lisp_Object Vwindow_pixel_scroll_increment; | |
| 103 | |
| 104 /* Scroll if point lands on the bottom line and that line is partially | |
| 105 clipped. */ | |
| 106 int scroll_on_clipped_lines; | |
| 107 | |
| 108 /* The minibuffer window of the selected frame. | |
| 109 Note that you cannot test for minibufferness of an arbitrary window | |
| 110 by comparing against this; but you can test for minibufferness of | |
| 111 the selected window. */ | |
| 112 Lisp_Object minibuf_window; | |
| 113 | |
| 114 /* Non-nil means it is the window for C-M-v to scroll | |
| 115 when the minibuffer is selected. */ | |
| 116 Lisp_Object Vminibuffer_scroll_window; | |
| 117 | |
| 118 /* Non-nil means this is the buffer whose window C-M-v should scroll. */ | |
| 119 Lisp_Object Vother_window_scroll_buffer; | |
| 120 | |
| 121 /* Non-nil means it's the function to call to display temp buffers. */ | |
| 122 Lisp_Object Vtemp_buffer_show_function; | |
| 123 | |
| 124 /* If a window gets smaller than either of these, it is removed. */ | |
| 458 | 125 Fixnum window_min_height; |
| 126 Fixnum window_min_width; | |
| 428 | 127 |
| 128 /* Number of lines of continuity in scrolling by screenfuls. */ | |
| 458 | 129 Fixnum next_screen_context_lines; |
| 428 | 130 |
| 1149 | 131 Lisp_Object Qcurrent_window_configuration, Qset_window_configuration; |
| 428 | 132 |
| 707 | 133 Lisp_Object Qtruncate_partial_width_windows; |
| 134 | |
| 428 | 135 #define SET_LAST_MODIFIED(w, cache_too) \ |
| 136 do { \ | |
| 137 (w)->last_modified[CURRENT_DISP] = Qzero; \ | |
| 138 (w)->last_modified[DESIRED_DISP] = Qzero; \ | |
| 139 (w)->last_modified[CMOTION_DISP] = Qzero; \ | |
| 140 if (cache_too) \ | |
| 141 (w)->line_cache_last_updated = Qzero; \ | |
| 142 } while (0) | |
| 143 | |
| 144 #define SET_LAST_FACECHANGE(w) \ | |
| 145 do { \ | |
| 146 (w)->last_facechange[CURRENT_DISP] = Qzero; \ | |
| 147 (w)->last_facechange[DESIRED_DISP] = Qzero; \ | |
| 148 (w)->last_facechange[CMOTION_DISP] = Qzero; \ | |
| 149 } while (0) | |
| 150 | |
| 151 | |
| 1204 | 152 |
| 153 static const struct memory_description int_description_1[] = { | |
| 154 { XD_END } | |
| 155 }; | |
| 156 | |
| 157 static const struct sized_memory_description int_description = { | |
| 158 sizeof (int), | |
| 159 int_description_1 | |
| 160 }; | |
| 161 | |
| 162 static const struct memory_description int_dynarr_description_1[] = { | |
| 163 XD_DYNARR_DESC (int_dynarr, &int_description), | |
| 164 { XD_END } | |
| 165 }; | |
| 166 | |
| 167 static const struct sized_memory_description int_dynarr_description = { | |
| 168 sizeof (int_dynarr), | |
| 169 int_dynarr_description_1 | |
| 170 }; | |
| 171 | |
| 172 static const struct memory_description face_cachel_description_1[] = { | |
| 2367 | 173 { XD_BLOCK_PTR, offsetof (face_cachel, merged_faces), |
| 2551 | 174 1, { &int_dynarr_description } }, |
| 1204 | 175 { XD_LISP_OBJECT, offsetof (face_cachel, face) }, |
| 176 { XD_LISP_OBJECT, offsetof (face_cachel, foreground) }, | |
| 177 { XD_LISP_OBJECT, offsetof (face_cachel, background) }, | |
| 178 { XD_LISP_OBJECT_ARRAY, offsetof (face_cachel, font), NUM_LEADING_BYTES }, | |
| 179 { XD_LISP_OBJECT, offsetof (face_cachel, display_table) }, | |
| 180 { XD_LISP_OBJECT, offsetof (face_cachel, background_pixmap) }, | |
| 181 { XD_END } | |
| 182 }; | |
| 183 | |
| 3092 | 184 #ifdef NEW_GC |
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185 DEFINE_DUMPABLE_INTERNAL_LISP_OBJECT ("face-cachel", face_cachel, |
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186 0, face_cachel_description_1, |
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187 Lisp_Face_Cachel); |
| 3092 | 188 #endif /* NEW_GC */ |
| 189 | |
| 1204 | 190 static const struct sized_memory_description face_cachel_description = { |
| 191 sizeof (face_cachel), | |
| 192 face_cachel_description_1 | |
| 193 }; | |
| 194 | |
| 195 static const struct memory_description face_cachel_dynarr_description_1[] = { | |
| 3092 | 196 #ifdef NEW_GC |
| 197 XD_LISP_DYNARR_DESC (face_cachel_dynarr, &face_cachel_description), | |
| 198 #else /* not NEW_GC */ | |
| 1204 | 199 XD_DYNARR_DESC (face_cachel_dynarr, &face_cachel_description), |
| 3092 | 200 #endif /* not NEW_GC */ |
| 1204 | 201 { XD_END } |
| 202 }; | |
| 203 | |
| 3092 | 204 #ifdef NEW_GC |
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205 DEFINE_DUMPABLE_INTERNAL_LISP_OBJECT ("face-cachel-dynarr", face_cachel_dynarr, |
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206 0, face_cachel_dynarr_description_1, |
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207 face_cachel_dynarr); |
| 3092 | 208 #else /* not NEW_GC */ |
| 1204 | 209 static const struct sized_memory_description face_cachel_dynarr_description = { |
| 210 sizeof (face_cachel_dynarr), | |
| 211 face_cachel_dynarr_description_1 | |
| 212 }; | |
| 3092 | 213 #endif /* not NEW_GC */ |
| 1204 | 214 |
| 215 static const struct memory_description glyph_cachel_description_1[] = { | |
| 216 { XD_LISP_OBJECT, offsetof (glyph_cachel, glyph) }, | |
| 217 { XD_END } | |
| 218 }; | |
| 219 | |
| 3092 | 220 #ifdef NEW_GC |
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221 DEFINE_DUMPABLE_INTERNAL_LISP_OBJECT ("glyph-cachel", glyph_cachel, |
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222 0, glyph_cachel_description_1, |
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223 Lisp_Glyph_Cachel); |
| 3092 | 224 #endif /* NEW_GC */ |
| 225 | |
| 1204 | 226 static const struct sized_memory_description glyph_cachel_description = { |
| 227 sizeof (glyph_cachel), | |
| 228 glyph_cachel_description_1 | |
| 229 }; | |
| 230 | |
| 231 static const struct memory_description glyph_cachel_dynarr_description_1[] = { | |
| 3092 | 232 #ifdef NEW_GC |
| 233 XD_LISP_DYNARR_DESC (glyph_cachel_dynarr, &glyph_cachel_description), | |
| 234 #else /* not NEW_GC */ | |
| 1204 | 235 XD_DYNARR_DESC (glyph_cachel_dynarr, &glyph_cachel_description), |
| 3092 | 236 #endif /* not NEW_GC */ |
| 1204 | 237 { XD_END } |
| 238 }; | |
| 239 | |
| 3092 | 240 #ifdef NEW_GC |
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241 DEFINE_DUMPABLE_INTERNAL_LISP_OBJECT ("glyph-cachel-dynarr", |
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242 glyph_cachel_dynarr, 0, |
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243 glyph_cachel_dynarr_description_1, |
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244 glyph_cachel_dynarr); |
| 3092 | 245 #else /* not NEW_GC */ |
| 1204 | 246 static const struct sized_memory_description glyph_cachel_dynarr_description = { |
| 247 sizeof (glyph_cachel_dynarr), | |
| 248 glyph_cachel_dynarr_description_1 | |
| 249 }; | |
| 3092 | 250 #endif /* not NEW_GC */ |
| 1204 | 251 |
| 252 static const struct memory_description line_start_cache_description_1[] = { | |
| 253 { XD_END } | |
| 254 }; | |
| 255 | |
| 256 static const struct sized_memory_description line_start_cache_description = { | |
| 257 sizeof (line_start_cache), | |
| 258 line_start_cache_description_1 | |
| 259 }; | |
| 260 | |
| 261 static const struct memory_description line_start_cache_dynarr_description_1[] = { | |
| 262 XD_DYNARR_DESC (line_start_cache_dynarr, &line_start_cache_description), | |
| 263 { XD_END } | |
| 264 }; | |
| 265 | |
| 266 static const struct sized_memory_description line_start_cache_dynarr_description = { | |
| 267 sizeof (line_start_cache_dynarr), | |
| 268 line_start_cache_dynarr_description_1 | |
| 269 }; | |
| 270 | |
| 271 static const struct memory_description window_description [] = { | |
| 272 #define WINDOW_SLOT(slot) { XD_LISP_OBJECT, offsetof (struct window, slot) }, | |
| 273 #define WINDOW_SLOT_ARRAY(slot, size) \ | |
| 274 { XD_LISP_OBJECT_ARRAY, offsetof (struct window, slot), size }, | |
| 275 #include "winslots.h" | |
| 276 | |
| 3092 | 277 #ifdef NEW_GC |
| 278 { XD_LISP_OBJECT, offsetof (struct window, face_cachels) }, | |
| 279 { XD_LISP_OBJECT, offsetof (struct window, glyph_cachels) }, | |
| 280 #else /* not NEW_GC */ | |
| 2367 | 281 { XD_BLOCK_PTR, offsetof (struct window, face_cachels), |
| 2551 | 282 1, { &face_cachel_dynarr_description } }, |
| 2367 | 283 { XD_BLOCK_PTR, offsetof (struct window, glyph_cachels), |
| 2551 | 284 1, { &glyph_cachel_dynarr_description } }, |
| 3092 | 285 #endif /* not NEW_GC */ |
| 2367 | 286 { XD_BLOCK_PTR, offsetof (struct window, line_start_cache), |
| 2775 | 287 1, { &line_start_cache_dynarr_description }, XD_FLAG_NO_KKCC }, |
| 1204 | 288 { XD_END } |
| 289 }; | |
| 428 | 290 |
| 291 static Lisp_Object | |
| 292 mark_window (Lisp_Object obj) | |
| 293 { | |
| 294 struct window *window = XWINDOW (obj); | |
| 295 | |
| 296 mark_face_cachels (window->face_cachels); | |
| 297 mark_glyph_cachels (window->glyph_cachels); | |
| 298 | |
| 617 | 299 #define WINDOW_SLOT(slot) mark_object (window->slot); |
| 428 | 300 #include "winslots.h" |
| 301 | |
| 302 return Qnil; | |
| 303 } | |
| 304 | |
| 305 static void | |
| 2286 | 306 print_window (Lisp_Object obj, Lisp_Object printcharfun, |
| 307 int UNUSED (escapeflag)) | |
| 428 | 308 { |
| 4846 | 309 Lisp_Object buf; |
| 310 | |
| 428 | 311 if (print_readably) |
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312 printing_unreadable_lisp_object (obj, 0); |
| 428 | 313 |
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314 write_ascstring (printcharfun, "#<window"); |
| 4846 | 315 buf = XWINDOW_BUFFER (obj); |
| 316 if (EQ (buf, Qt)) | |
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317 write_ascstring (printcharfun, " during creation"); |
| 4846 | 318 else if (!NILP (buf)) |
| 428 | 319 { |
| 4846 | 320 |
| 321 Lisp_Object name = XBUFFER (buf)->name; | |
| 800 | 322 write_fmt_string_lisp (printcharfun, " on %S", 1, name); |
| 428 | 323 } |
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324 write_fmt_string (printcharfun, " 0x%x>", |
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325 NORMAL_LISP_OBJECT_UID (XWINDOW (obj))); |
| 428 | 326 } |
| 327 | |
| 328 static void | |
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329 finalize_window (Lisp_Object obj) |
| 428 | 330 { |
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331 struct window *w = XWINDOW (obj); |
| 428 | 332 |
| 333 if (w->line_start_cache) | |
| 334 { | |
| 335 Dynarr_free (w->line_start_cache); | |
| 336 w->line_start_cache = 0; | |
| 337 } | |
| 338 | |
| 339 if (w->face_cachels) | |
| 340 { | |
| 341 int i; | |
| 342 | |
| 343 for (i = 0; i < Dynarr_length (w->face_cachels); i++) | |
| 344 { | |
| 345 struct face_cachel *cachel = Dynarr_atp (w->face_cachels, i); | |
| 346 if (cachel->merged_faces) | |
| 347 { | |
| 348 Dynarr_free (cachel->merged_faces); | |
| 349 cachel->merged_faces = 0; | |
| 350 } | |
| 351 } | |
| 352 Dynarr_free (w->face_cachels); | |
| 353 w->face_cachels = 0; | |
| 354 } | |
| 355 | |
| 356 if (w->glyph_cachels) | |
| 357 { | |
| 358 Dynarr_free (w->glyph_cachels); | |
| 359 w->glyph_cachels = 0; | |
| 360 } | |
| 361 } | |
| 362 | |
| 844 | 363 /* These caches map buffers to markers. They are key-weak so that entries |
| 364 remain around as long as the buffers do. */ | |
| 365 | |
| 366 static Lisp_Object | |
| 367 make_saved_buffer_point_cache (void) | |
| 368 { | |
| 369 return make_lisp_hash_table (20, HASH_TABLE_KEY_WEAK, HASH_TABLE_EQ); | |
| 370 } | |
| 371 | |
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372 DEFINE_NODUMP_LISP_OBJECT ("window", window, |
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373 mark_window, print_window, finalize_window, |
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374 0, 0, window_description, struct window); |
| 428 | 375 |
| 376 #define INIT_DISP_VARIABLE(field, initialization) \ | |
| 377 p->field[CURRENT_DISP] = initialization; \ | |
| 378 p->field[DESIRED_DISP] = initialization; \ | |
| 379 p->field[CMOTION_DISP] = initialization; | |
| 380 | |
| 381 /* We have an implicit assertion that the first two elements (default | |
| 382 and modeline faces) are always present in the face_element_cache. | |
| 383 Normally redisplay ensures this. However, it is possible for a | |
| 384 window to get created and functions which reference these values | |
| 385 called before redisplay works with the window for the first time. | |
| 386 All callers of allocate_window should therefore call | |
| 387 reset_face_cachels on the created window. We can't do it | |
| 388 here because the window must have its frame pointer set or | |
| 389 reset_face_cachels will fail. */ | |
| 390 Lisp_Object | |
| 391 allocate_window (void) | |
| 392 { | |
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393 Lisp_Object obj = ALLOC_NORMAL_LISP_OBJECT (window); |
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394 struct window *p = XWINDOW (obj); |
| 617 | 395 |
| 396 #define WINDOW_SLOT(slot) p->slot = Qnil; | |
| 397 #include "winslots.h" | |
| 398 | |
| 428 | 399 INIT_DISP_VARIABLE (start, Fmake_marker ()); |
| 400 INIT_DISP_VARIABLE (pointm, Fmake_marker ()); | |
| 401 p->sb_point = Fmake_marker (); | |
| 844 | 402 p->saved_point_cache = make_saved_buffer_point_cache (); |
| 403 p->saved_last_window_start_cache = make_saved_buffer_point_cache (); | |
| 428 | 404 p->use_time = Qzero; |
| 405 INIT_DISP_VARIABLE (last_modified, Qzero); | |
| 406 INIT_DISP_VARIABLE (last_point, Fmake_marker ()); | |
| 407 INIT_DISP_VARIABLE (last_start, Fmake_marker ()); | |
| 408 INIT_DISP_VARIABLE (last_facechange, Qzero); | |
| 3092 | 409 #ifdef NEW_GC |
| 410 p->face_cachels = Dynarr_lisp_new (face_cachel, | |
| 411 &lrecord_face_cachel_dynarr, | |
| 412 &lrecord_face_cachel); | |
| 413 p->glyph_cachels = Dynarr_lisp_new (glyph_cachel, | |
| 414 &lrecord_glyph_cachel_dynarr, | |
| 415 &lrecord_glyph_cachel); | |
| 416 #else /* not NEW_GC */ | |
| 428 | 417 p->face_cachels = Dynarr_new (face_cachel); |
| 418 p->glyph_cachels = Dynarr_new (glyph_cachel); | |
| 3092 | 419 #endif /* not NEW_GC */ |
| 428 | 420 p->line_start_cache = Dynarr_new (line_start_cache); |
| 450 | 421 p->subwindow_instance_cache = make_image_instance_cache_hash_table (); |
| 422 | |
| 428 | 423 p->line_cache_last_updated = Qzero; |
| 442 | 424 |
| 428 | 425 p->windows_changed = 1; |
| 426 p->shadow_thickness_changed = 1; | |
| 427 | |
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|
428 return obj; |
| 428 | 429 } |
| 430 #undef INIT_DISP_VARIABLE | |
| 431 | |
| 617 | 432 /************************************************************************/ |
| 433 /* Window mirror structure */ | |
| 434 /************************************************************************/ | |
| 435 | |
| 428 | 436 /* |
| 437 * The redisplay structures used to be stored with each window. While | |
| 438 * they are logically something associated with frames they can't be | |
| 439 * stored there with a redisplay which handles variable height lines. | |
| 440 * Lines in horizontally split windows might not line up. So they get | |
| 441 * stored with the windows. | |
| 442 * | |
| 443 * The problem with this is window configurations. When restoring a | |
| 444 * window configuration it now becomes problematic to do an | |
| 445 * incremental redisplay. The solution is to store the redisplay | |
| 446 * structures with the frame as they should be but laid out in the | |
| 447 * same manner as the window structure. Thus is born the window | |
| 448 * mirror. | |
| 449 * | |
| 450 * It also becomes a convenient place to stick scrollbar instances | |
| 451 * since they extrapolate out to having the same problem described for | |
| 452 * the display structures. | |
| 453 */ | |
| 454 | |
| 617 | 455 /* NOTE: The window-mirror structure formerly was not a Lisp object, and |
| 456 marking was handled specially. I've gotten recurring crashes, however, | |
| 457 using the mouse wheel under Windows, where either the window mirror | |
| 458 accessed through a scrollbar instance, or the frame pointed to by that | |
| 459 window mirror, gets garbaged. Things are tricky under windows because | |
| 460 the scrollbar instances are stored in HWND-specific data. Furthermore, | |
| 461 we have scrollbar-instance caches to complicate things. Both of these | |
| 462 make it very difficult (for me at least, not being intimately familiar | |
| 463 with the redisplay code) to track exactly when and where a particular | |
| 464 window mirror or scrollbar instance has pointers to it, or whether a | |
| 465 window mirror might have a dead frame or buffer in it (i.e. not | |
| 466 necessarily gc-protected by being on a global list). By far the safest | |
| 467 thing, then, is to make both structures Lisp objects and not explicitly | |
| 468 xfree() them. This should make no practical difference in memory usage | |
| 469 because neither structure is created very often (only when windows are | |
| 470 created or deleted). --ben */ | |
| 471 | |
| 1204 | 472 static const struct memory_description window_mirror_description [] = { |
| 473 { XD_LISP_OBJECT, offsetof (struct window_mirror, frame) }, | |
| 474 { XD_LISP_OBJECT, offsetof (struct window_mirror, next) }, | |
| 475 { XD_LISP_OBJECT, offsetof (struct window_mirror, hchild) }, | |
| 476 { XD_LISP_OBJECT, offsetof (struct window_mirror, vchild) }, | |
| 477 | |
| 2367 | 478 { XD_BLOCK_PTR, offsetof (struct window_mirror, current_display_lines), |
| 2551 | 479 1, { &display_line_dynarr_description } }, |
| 2367 | 480 { XD_BLOCK_PTR, offsetof (struct window_mirror, desired_display_lines), |
| 2551 | 481 1, { &display_line_dynarr_description } }, |
| 1204 | 482 |
| 483 { XD_LISP_OBJECT, offsetof (struct window_mirror, buffer) }, | |
| 484 | |
| 485 #ifdef HAVE_SCROLLBARS | |
| 486 { XD_LISP_OBJECT, offsetof (struct window_mirror, | |
| 487 scrollbar_vertical_instance) }, | |
| 488 { XD_LISP_OBJECT, offsetof (struct window_mirror, | |
| 489 scrollbar_horizontal_instance) }, | |
| 490 #endif /* HAVE_SCROLLBARS */ | |
| 491 | |
| 934 | 492 { XD_END } |
| 493 }; | |
| 494 | |
| 617 | 495 static Lisp_Object |
| 496 mark_window_mirror (Lisp_Object obj) | |
| 497 { | |
| 498 struct window_mirror *mir = XWINDOW_MIRROR (obj); | |
| 499 | |
| 500 if (mir->current_display_lines) | |
| 501 mark_redisplay_structs (mir->current_display_lines); | |
| 502 if (mir->desired_display_lines) | |
| 503 mark_redisplay_structs (mir->desired_display_lines); | |
| 504 | |
| 505 if (mir->hchild) | |
| 506 mark_object (wrap_window_mirror (mir->hchild)); | |
| 507 if (mir->vchild) | |
| 508 mark_object (wrap_window_mirror (mir->vchild)); | |
| 509 | |
| 510 if (mir->frame) | |
| 511 mark_object (wrap_frame (mir->frame)); | |
| 512 if (mir->buffer) | |
| 513 mark_object (wrap_buffer (mir->buffer)); | |
| 514 | |
| 515 #ifdef HAVE_SCROLLBARS | |
| 516 if (mir->scrollbar_vertical_instance) | |
| 517 mark_object (wrap_scrollbar_instance (mir->scrollbar_vertical_instance)); | |
| 518 if (mir->scrollbar_horizontal_instance) | |
| 519 mark_object (wrap_scrollbar_instance (mir->scrollbar_horizontal_instance)); | |
| 520 #endif /* HAVE_SCROLLBARS */ | |
| 521 if (mir->next) | |
| 522 return wrap_window_mirror (mir->next); | |
| 523 else | |
| 524 return Qnil; | |
| 525 } | |
| 526 | |
|
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527 DEFINE_NODUMP_INTERNAL_LISP_OBJECT ("window-mirror", window_mirror, |
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528 mark_window_mirror, |
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529 window_mirror_description, |
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530 struct window_mirror); |
| 617 | 531 |
| 428 | 532 /* Create a new window mirror structure and associated redisplay |
| 533 structs. */ | |
| 534 static struct window_mirror * | |
| 535 new_window_mirror (struct frame *f) | |
| 536 { | |
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537 Lisp_Object obj = ALLOC_NORMAL_LISP_OBJECT (window_mirror); |
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538 struct window_mirror *t = XWINDOW_MIRROR (obj); |
| 428 | 539 |
| 540 t->frame = f; | |
| 541 t->current_display_lines = Dynarr_new (display_line); | |
| 542 t->desired_display_lines = Dynarr_new (display_line); | |
| 543 | |
| 544 return t; | |
| 545 } | |
| 546 | |
| 547 /* Synchronize the mirror structure with a given window structure. | |
| 548 This is normally called from update_frame_window_mirror with a | |
| 549 starting window of f->root_window. */ | |
| 550 static struct window_mirror * | |
| 551 update_mirror_internal (Lisp_Object win, struct window_mirror *mir) | |
| 552 { | |
| 553 if (NILP (win)) | |
| 554 { | |
| 555 if (mir) | |
| 556 { | |
| 557 free_window_mirror (mir); | |
| 558 mir = NULL; | |
| 559 } | |
| 560 return mir; | |
| 561 } | |
| 562 else | |
| 563 if (!mir) | |
| 564 mir = new_window_mirror (XFRAME (XWINDOW (win)->frame)); | |
| 565 | |
| 1204 | 566 mir->next = update_mirror_internal (XWINDOW (win)->next, mir->next); |
| 428 | 567 mir->hchild = update_mirror_internal (XWINDOW (win)->hchild, mir->hchild); |
| 568 mir->vchild = update_mirror_internal (XWINDOW (win)->vchild, mir->vchild); | |
| 569 | |
| 570 /* | |
| 571 * If the redisplay structs are not empty and the mirror has | |
| 572 * children, then this mirror structure was formerly being used for | |
| 573 * display but is no longer. Reset its current display structs so | |
| 574 * that redisplay doesn't accidentally think they are accurate if it | |
| 575 * is later used for display purposes once again. Also, mark the | |
| 576 * scrollbar instance as not active. | |
| 577 */ | |
| 578 if (mir->vchild || mir->hchild) | |
| 579 { | |
| 580 /* The redisplay structures are big. Leaving them around in | |
| 581 non-leaf windows can add up to a lot of wasted space. So | |
| 582 don't do it. */ | |
| 583 free_display_structs (mir); | |
| 584 mir->current_display_lines = Dynarr_new (display_line); | |
| 585 mir->desired_display_lines = Dynarr_new (display_line); | |
| 586 | |
| 587 #ifdef HAVE_SCROLLBARS | |
| 588 update_window_scrollbars (XWINDOW (win), mir, 0, 0); | |
| 589 #endif | |
| 590 mir->buffer = NULL; | |
| 591 } | |
| 592 | |
| 593 return mir; | |
| 594 } | |
| 595 | |
| 596 /* Given a window mirror, determine which real window it contains the | |
| 597 redisplay structures for. */ | |
| 598 static Lisp_Object | |
| 599 real_window_internal (Lisp_Object win, struct window_mirror *rmir, | |
| 600 struct window_mirror *mir) | |
| 601 { | |
| 602 for (; !NILP (win) && rmir ; win = XWINDOW (win)->next, rmir = rmir->next) | |
| 603 { | |
| 604 if (mir == rmir) | |
| 605 return win; | |
| 606 if (!NILP (XWINDOW (win)->vchild)) | |
| 607 { | |
| 608 Lisp_Object retval = | |
| 609 real_window_internal (XWINDOW (win)->vchild, rmir->vchild, mir); | |
| 610 if (!NILP (retval)) | |
| 611 return retval; | |
| 612 } | |
| 613 if (!NILP (XWINDOW (win)->hchild)) | |
| 614 { | |
| 615 Lisp_Object retval = | |
| 616 real_window_internal (XWINDOW (win)->hchild, rmir->hchild, mir); | |
| 617 if (!NILP (retval)) | |
| 618 return retval; | |
| 619 } | |
| 620 } | |
| 621 | |
| 622 return Qnil; | |
| 623 } | |
| 624 | |
| 625 /* Given a real window, find the mirror structure which contains its | |
| 626 redisplay structures. */ | |
| 627 static struct window_mirror * | |
| 628 find_window_mirror_internal (Lisp_Object win, struct window_mirror *rmir, | |
| 629 struct window *w) | |
| 630 { | |
| 631 for (; !NILP (win); win = XWINDOW (win)->next, rmir = rmir->next) | |
| 632 { | |
| 633 if (w == XWINDOW (win)) | |
| 634 return rmir; | |
| 635 | |
| 636 if (!NILP (XWINDOW (win)->vchild)) | |
| 637 { | |
| 638 struct window_mirror *retval = | |
| 639 find_window_mirror_internal (XWINDOW (win)->vchild, | |
| 640 rmir->vchild, w); | |
| 641 if (retval) return retval; | |
| 642 } | |
| 643 | |
| 644 if (!NILP (XWINDOW (win)->hchild)) | |
| 645 { | |
| 646 struct window_mirror *retval = | |
| 647 find_window_mirror_internal (XWINDOW (win)->hchild, | |
| 648 rmir->hchild, w); | |
| 649 if (retval) return retval; | |
| 650 } | |
| 651 } | |
| 652 | |
| 653 return 0; | |
| 654 } | |
| 655 | |
| 656 /* Update the mirror structure for the given frame. */ | |
| 657 void | |
| 658 update_frame_window_mirror (struct frame *f) | |
| 659 { | |
| 617 | 660 f->root_mirror = |
| 661 wrap_window_mirror (update_mirror_internal | |
| 662 (f->root_window, | |
| 663 NILP (f->root_mirror) ? 0 : | |
| 664 XWINDOW_MIRROR (f->root_mirror))); | |
| 428 | 665 f->mirror_dirty = 0; |
| 666 } | |
| 667 | |
| 668 /* Free a given mirror structure along with all of its children as | |
| 669 well as their associated display structures. */ | |
| 670 void | |
| 671 free_window_mirror (struct window_mirror *mir) | |
| 672 { | |
| 673 while (mir) | |
| 674 { | |
| 675 if (mir->hchild) free_window_mirror (mir->hchild); | |
| 676 if (mir->vchild) free_window_mirror (mir->vchild); | |
| 677 #ifdef HAVE_SCROLLBARS | |
| 678 release_window_mirror_scrollbars (mir); | |
| 679 #endif | |
| 680 free_display_structs (mir); | |
| 681 mir = mir->next; | |
|
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682 /* not worth calling free_normal_lisp_object() -- window mirrors |
| 617 | 683 are not created that frequently and it's dangerous. we don't |
| 684 know for sure that there aren't other pointers around -- e.g. | |
| 685 in a scrollbar instance. */ | |
| 428 | 686 } |
| 687 } | |
| 688 | |
| 689 /* Given a mirror structure, return the window it mirrors. Calls | |
| 690 real_window_internal to do most of the work. */ | |
| 691 Lisp_Object | |
| 692 real_window (struct window_mirror *mir, int no_abort) | |
| 693 { | |
| 617 | 694 Lisp_Object retval = |
| 695 real_window_internal (mir->frame->root_window, | |
| 696 XWINDOW_MIRROR (mir->frame->root_mirror), mir); | |
|
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697 assert (!NILP (retval) || no_abort); |
| 428 | 698 |
| 699 return retval; | |
| 700 } | |
| 701 | |
| 702 /* Given a real window, return its mirror structure. Calls | |
| 703 find_window_mirror_internal to do all of the work. */ | |
| 704 struct window_mirror * | |
| 705 find_window_mirror (struct window *w) | |
| 706 { | |
| 707 struct frame *f = XFRAME (w->frame); | |
| 708 if (f->mirror_dirty) | |
| 709 update_frame_window_mirror (f); | |
| 617 | 710 return find_window_mirror_internal (f->root_window, |
| 711 XWINDOW_MIRROR (f->root_mirror), w); | |
| 428 | 712 } |
| 713 | |
| 714 /***************************************************************************** | |
| 715 find_window_by_pixel_pos | |
| 716 | |
| 717 Given a pixel position relative to a frame, find the window at that | |
| 718 position. | |
| 719 ****************************************************************************/ | |
| 720 struct window * | |
| 721 find_window_by_pixel_pos (int pix_x, int pix_y, Lisp_Object win) | |
| 722 { | |
| 723 if (NILP (win)) | |
| 724 return 0; | |
| 725 | |
| 726 for (; !NILP (win); win = XWINDOW (win)->next) | |
| 727 { | |
| 728 struct window *w; | |
| 729 | |
| 730 if (!NILP (XWINDOW (win)->vchild)) | |
| 731 { | |
| 732 w = find_window_by_pixel_pos (pix_x, pix_y, XWINDOW (win)->vchild); | |
| 733 if (w) return w; | |
| 734 } | |
| 735 if (!NILP (XWINDOW (win)->hchild)) | |
| 736 { | |
| 737 w = find_window_by_pixel_pos (pix_x, pix_y, XWINDOW (win)->hchild); | |
| 738 if (w) return w; | |
| 739 } | |
| 740 w = XWINDOW (win); | |
| 741 if (pix_x >= WINDOW_LEFT (w) | |
| 742 && pix_x <= WINDOW_RIGHT (w) | |
| 743 && pix_y >= WINDOW_TOP (w) | |
| 744 && pix_y <= WINDOW_BOTTOM (w)) | |
| 745 return w; | |
| 746 } | |
| 747 return NULL; | |
| 748 } | |
| 749 | |
| 750 /* Return a pointer to the display structures for the given window. */ | |
| 751 display_line_dynarr * | |
| 752 window_display_lines (struct window *w, int which) | |
| 753 { | |
| 754 struct window_mirror *t; | |
| 755 | |
| 756 if (XFRAME (w->frame)->mirror_dirty) | |
| 757 update_frame_window_mirror (XFRAME (w->frame)); | |
| 758 t = find_window_mirror (w); | |
|
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759 assert (t); |
| 428 | 760 |
| 761 if (which == CURRENT_DISP) | |
| 762 return t->current_display_lines; | |
| 763 else if (which == DESIRED_DISP) | |
| 764 return t->desired_display_lines; | |
| 765 else if (which == CMOTION_DISP) | |
| 766 /* The CMOTION_DISP display lines are global. */ | |
| 767 return cmotion_display_lines; | |
| 768 else | |
| 2500 | 769 ABORT (); |
| 428 | 770 |
| 771 return 0; /* shut up compiler */ | |
| 772 } | |
| 773 | |
| 774 struct buffer * | |
| 775 window_display_buffer (struct window *w) | |
| 776 { | |
| 777 struct window_mirror *t; | |
| 778 | |
| 779 if (XFRAME (w->frame)->mirror_dirty) | |
| 780 update_frame_window_mirror (XFRAME (w->frame)); | |
| 781 t = find_window_mirror (w); | |
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782 assert (t); |
| 428 | 783 |
| 784 return t->buffer; | |
| 785 } | |
| 786 | |
| 787 void | |
| 788 set_window_display_buffer (struct window *w, struct buffer *b) | |
| 789 { | |
| 790 struct window_mirror *t; | |
| 791 | |
| 792 if (XFRAME (w->frame)->mirror_dirty) | |
| 793 update_frame_window_mirror (XFRAME (w->frame)); | |
| 794 t = find_window_mirror (w); | |
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795 assert (t); |
| 428 | 796 |
| 797 t->buffer = b; | |
| 798 } | |
| 799 | |
| 800 | |
| 801 /* Determining a window's position based solely on its pixel | |
| 802 positioning doesn't work. Instead, we do it the intelligent way, | |
| 803 by checking its positioning in the window hierarchy. */ | |
| 804 int | |
| 805 window_is_leftmost (struct window *w) | |
| 806 { | |
| 807 Lisp_Object parent, current_ancestor, window; | |
| 808 | |
| 793 | 809 window = wrap_window (w); |
| 428 | 810 |
| 811 parent = XWINDOW (window)->parent; | |
| 812 current_ancestor = window; | |
| 813 | |
| 814 while (!NILP (parent)) | |
| 815 { | |
| 816 if (!NILP (XWINDOW (parent)->hchild) && | |
| 817 !EQ (XWINDOW (parent)->hchild, current_ancestor)) | |
| 818 return 0; | |
| 819 | |
| 820 current_ancestor = parent; | |
| 821 parent = XWINDOW (parent)->parent; | |
| 822 } | |
| 823 | |
| 824 return 1; | |
| 825 } | |
| 826 | |
| 827 int | |
| 828 window_is_rightmost (struct window *w) | |
| 829 { | |
| 830 Lisp_Object parent, current_ancestor, window; | |
| 831 | |
| 793 | 832 window = wrap_window (w); |
| 428 | 833 |
| 834 parent = XWINDOW (window)->parent; | |
| 835 current_ancestor = window; | |
| 836 | |
| 837 while (!NILP (parent)) | |
| 838 { | |
| 839 if (!NILP (XWINDOW (parent)->hchild) | |
| 840 && !NILP (XWINDOW (current_ancestor)->next)) | |
| 841 return 0; | |
| 842 | |
| 843 current_ancestor = parent; | |
| 844 parent = XWINDOW (parent)->parent; | |
| 845 } | |
| 846 | |
| 847 return 1; | |
| 848 } | |
| 849 | |
| 850 static int | |
| 851 window_full_width_p (struct window *w) | |
| 852 { | |
| 853 return window_is_leftmost (w) && window_is_rightmost (w); | |
| 854 } | |
| 855 | |
| 856 int | |
| 857 window_is_highest (struct window *w) | |
| 858 { | |
| 859 Lisp_Object parent, current_ancestor, window; | |
| 860 | |
| 793 | 861 window = wrap_window (w); |
| 428 | 862 |
| 863 parent = XWINDOW (window)->parent; | |
| 864 current_ancestor = window; | |
| 865 | |
| 866 while (!NILP (parent)) | |
| 867 { | |
| 868 if (!NILP (XWINDOW (parent)->vchild) && | |
| 869 !EQ (XWINDOW (parent)->vchild, current_ancestor)) | |
| 870 return 0; | |
| 871 | |
| 872 current_ancestor = parent; | |
| 873 parent = XWINDOW (parent)->parent; | |
| 874 } | |
| 875 | |
| 876 /* This is really to catch the minibuffer but we make it generic in | |
| 877 case we ever change things around to let the minibuffer be on top. */ | |
| 878 if (NILP (XWINDOW (current_ancestor)->prev)) | |
| 879 return 1; | |
| 880 else | |
| 881 return 0; | |
| 882 } | |
| 883 | |
| 884 int | |
| 885 window_is_lowest (struct window *w) | |
| 886 { | |
| 887 Lisp_Object parent, current_ancestor, window; | |
| 888 | |
| 793 | 889 window = wrap_window (w); |
| 428 | 890 |
| 891 parent = XWINDOW (window)->parent; | |
| 892 current_ancestor = window; | |
| 893 | |
| 894 while (!NILP (parent)) | |
| 895 { | |
| 896 if (!NILP (XWINDOW (parent)->vchild) | |
| 897 && !NILP (XWINDOW (current_ancestor)->next)) | |
| 898 return 0; | |
| 899 | |
| 900 current_ancestor = parent; | |
| 901 parent = XWINDOW (parent)->parent; | |
| 902 } | |
| 903 | |
| 904 return 1; | |
| 905 } | |
| 906 | |
| 907 #if 0 /* not currently used */ | |
| 908 | |
| 909 static int | |
| 910 window_full_height_p (struct window *w) | |
| 911 { | |
| 912 return window_is_highest (w) && window_is_lowest (w); | |
| 913 } | |
| 914 | |
| 915 #endif | |
| 916 | |
| 917 int | |
| 918 window_truncation_on (struct window *w) | |
| 919 { | |
| 920 /* Minibuffer windows are never truncated. | |
| 440 | 921 #### is this the right way ? */ |
| 428 | 922 if (MINI_WINDOW_P (w)) |
| 923 return 0; | |
| 924 | |
| 925 /* Horizontally scrolled windows are truncated. */ | |
| 926 if (w->hscroll) | |
| 927 return 1; | |
| 928 | |
| 929 /* If truncate_partial_width_windows is true and the window is not | |
| 930 the full width of the frame it is truncated. */ | |
| 707 | 931 if (!NILP (symbol_value_in_buffer (Qtruncate_partial_width_windows, |
| 932 w->buffer)) | |
| 428 | 933 && !(window_is_leftmost (w) && window_is_rightmost (w))) |
| 934 return 1; | |
| 935 | |
| 936 /* If the window's buffer's value of truncate_lines is non-nil, then | |
| 937 the window is truncated. */ | |
| 938 if (!NILP (XBUFFER (w->buffer)->truncate_lines)) | |
| 939 return 1; | |
| 940 | |
| 941 return 0; | |
| 942 } | |
| 943 | |
| 944 DEFUN ("window-truncated-p", Fwindow_truncated_p, 0, 1, 0, /* | |
| 442 | 945 Returns non-nil if text in the window is truncated. |
| 428 | 946 */ |
| 947 (window)) | |
| 948 { | |
| 949 struct window *w = decode_window (window); | |
| 950 | |
| 951 return window_truncation_on (w) ? Qt : Qnil; | |
| 952 } | |
| 953 | |
| 954 | |
| 955 static int | |
| 956 have_undivided_common_edge (struct window *w_right, void *closure) | |
| 957 { | |
| 958 struct window *w_left = (struct window *) closure; | |
| 959 return (WINDOW_RIGHT (w_left) == WINDOW_LEFT (w_right) | |
| 960 && WINDOW_TOP (w_left) < WINDOW_BOTTOM (w_right) | |
| 961 && WINDOW_TOP (w_right) < WINDOW_BOTTOM (w_left) | |
| 962 #ifdef HAVE_SCROLLBARS | |
| 963 && (NILP (w_right->scrollbar_on_left_p) | |
| 964 || NILP (w_right->vertical_scrollbar_visible_p) | |
| 965 || ZEROP (w_right->scrollbar_width)) | |
| 966 #endif | |
| 967 ); | |
| 968 } | |
| 969 | |
| 970 static int | |
| 971 window_needs_vertical_divider_1 (struct window *w) | |
| 972 { | |
| 973 /* Never if we're on the right */ | |
| 974 if (window_is_rightmost (w)) | |
| 975 return 0; | |
| 976 | |
| 977 /* Always if draggable */ | |
| 978 if (!NILP (w->vertical_divider_always_visible_p)) | |
| 979 return 1; | |
| 980 | |
| 981 #ifdef HAVE_SCROLLBARS | |
| 982 /* Our right scrollbar is enough to separate us at the right */ | |
| 983 if (NILP (w->scrollbar_on_left_p) | |
| 984 && !NILP (w->vertical_scrollbar_visible_p) | |
| 985 && !ZEROP (w->scrollbar_width)) | |
| 986 return 0; | |
| 987 #endif | |
| 988 | |
| 989 /* Ok. to determine whether we need a divider on the left, we must | |
| 990 check that our right neighbor windows have scrollbars on their | |
| 991 left sides. We must check all such windows which have common | |
| 992 left edge with our window's right edge. */ | |
| 993 return map_windows (XFRAME (WINDOW_FRAME (w)), | |
| 994 have_undivided_common_edge, (void*)w); | |
| 995 } | |
| 996 | |
| 997 int | |
| 998 window_needs_vertical_divider (struct window *w) | |
| 999 { | |
| 1000 if (!w->need_vertical_divider_valid_p) | |
| 1001 { | |
| 1002 w->need_vertical_divider_p = | |
| 1003 window_needs_vertical_divider_1 (w); | |
| 1004 w->need_vertical_divider_valid_p = 1; | |
| 1005 } | |
| 1006 return w->need_vertical_divider_p; | |
| 1007 } | |
| 1008 | |
| 1009 /* Called from invalidate_vertical_divider_cache_in_frame */ | |
| 1010 int | |
| 1011 invalidate_vertical_divider_cache_in_window (struct window *w, | |
| 2286 | 1012 void *UNUSED (unused)) |
| 428 | 1013 { |
| 1014 w->need_vertical_divider_valid_p = 0; | |
| 1015 return 0; | |
| 1016 } | |
| 1017 | |
| 1018 /* Calculate width of vertical divider, including its shadows | |
| 1019 and spacing. The returned value is effectively the distance | |
| 1020 between adjacent window edges. This function does not check | |
| 1021 whether a window needs a vertical divider, so the returned | |
| 1022 value is a "theoretical" one */ | |
| 1023 int | |
| 1024 window_divider_width (struct window *w) | |
| 1025 { | |
| 1026 /* the shadow thickness can be negative. This means that the divider | |
| 1027 will have a depressed look */ | |
| 1028 | |
| 1029 if (FRAME_WIN_P (XFRAME (WINDOW_FRAME (w)))) | |
| 1030 return | |
| 1031 XINT (w->vertical_divider_line_width) | |
| 1032 + 2 * XINT (w->vertical_divider_spacing) | |
| 1033 + 2 * abs (XINT (w->vertical_divider_shadow_thickness)); | |
| 1034 else | |
| 1035 return XINT (w->vertical_divider_line_width) == 0 ? 0 : 1; | |
| 1036 } | |
| 1037 | |
| 1038 int | |
| 4932 | 1039 window_scrollbar_width (struct window * USED_IF_SCROLLBARS (w)) |
| 428 | 1040 { |
| 1041 #ifdef HAVE_SCROLLBARS | |
| 1042 if (!WINDOW_WIN_P (w) | |
| 1043 || MINI_WINDOW_P (w) | |
| 1044 || NILP (w->buffer) | |
| 1045 || NILP (w->vertical_scrollbar_visible_p)) | |
| 1046 /* #### when does NILP (w->buffer) happen? */ | |
| 1047 return 0; | |
| 1048 | |
| 1049 return XINT (w->scrollbar_width); | |
| 1050 #else | |
| 1051 return 0; | |
| 1052 #endif /* HAVE_SCROLLBARS */ | |
| 1053 } | |
| 1054 | |
| 1055 /* Horizontal scrollbars are only active on windows with truncation | |
| 1056 turned on. */ | |
| 1057 int | |
| 4932 | 1058 window_scrollbar_height (struct window * USED_IF_SCROLLBARS (w)) |
| 428 | 1059 { |
| 1060 #ifdef HAVE_SCROLLBARS | |
| 1061 if (!WINDOW_WIN_P (w) | |
| 1062 || MINI_WINDOW_P (w) | |
| 1063 || NILP (w->buffer) | |
| 1064 || NILP (w->horizontal_scrollbar_visible_p) | |
| 1065 || !window_truncation_on (w)) | |
| 1066 return 0; | |
| 1067 | |
| 1068 return XINT (w->scrollbar_height); | |
| 1069 #else | |
| 1070 return 0; | |
| 1071 #endif /* HAVE_SCROLLBARS */ | |
| 1072 } | |
| 1073 | |
| 1074 int | |
| 1075 window_modeline_height (struct window *w) | |
| 1076 { | |
| 1077 struct frame *f = XFRAME (w->frame); | |
| 1078 int modeline_height; | |
| 1079 | |
| 1080 if (MINI_WINDOW_P (w) || NILP (w->buffer)) | |
| 1081 { | |
| 1082 modeline_height = 0; | |
| 1083 } | |
| 1084 else if (!WINDOW_HAS_MODELINE_P (w)) | |
| 1085 { | |
| 1086 if (window_scrollbar_height (w)) | |
| 1087 modeline_height = 0; | |
| 1088 else | |
| 1089 { | |
| 1090 modeline_height = FRAMEMETH (f, divider_height, ()); | |
| 1091 | |
| 1092 if (!EQ (Qzero, w->modeline_shadow_thickness) && FRAME_WIN_P (f)) | |
| 1093 modeline_height += (2 * MODELINE_SHADOW_THICKNESS (w)); | |
| 1094 } | |
| 1095 } | |
| 1096 else | |
| 1097 { | |
| 1098 if (noninteractive) | |
| 1099 modeline_height = 0; | |
| 1100 else | |
| 1101 { | |
| 1102 display_line_dynarr *dla; | |
| 1103 | |
| 1104 /* We don't force a regeneration of the modeline here. | |
| 1105 Instead it is now a precondition that any function calling | |
| 1106 this should make sure that one of these structures is | |
| 1107 up-to-date. In practice this only affects two internal | |
| 1108 redisplay functions, regenerate_window and | |
| 1109 regenerate_window_point_center. */ | |
| 1110 /* We check DESIRED_DISP because if it is valid it is more | |
| 1111 up-to-date than CURRENT_DISP. For calls to this outside | |
| 1112 of redisplay it doesn't matter which structure we check | |
| 1113 since there is a redisplay condition that these | |
| 1114 structures be identical outside of redisplay. */ | |
| 1115 dla = window_display_lines (w, DESIRED_DISP); | |
| 4967 | 1116 if (dla && Dynarr_length (dla) && Dynarr_begin (dla)->modeline) |
| 1117 modeline_height = (Dynarr_begin (dla)->ascent + | |
| 1118 Dynarr_begin (dla)->descent); | |
| 428 | 1119 else |
| 1120 { | |
| 1121 dla = window_display_lines (w, CURRENT_DISP); | |
| 4967 | 1122 if (dla && Dynarr_length (dla) && Dynarr_begin (dla)->modeline) |
| 1123 modeline_height = (Dynarr_begin (dla)->ascent + | |
| 1124 Dynarr_begin (dla)->descent); | |
| 428 | 1125 else |
| 1126 /* This should be an abort except I'm not yet 100% | |
| 1127 confident that it won't ever get hit (though I | |
| 1128 haven't been able to trigger it). It is extremely | |
| 1129 unlikely to cause any noticeable problem and even if | |
| 1130 it does it will be a minor display glitch. */ | |
| 1131 /* #### Bullshit alert. It does get hit and it causes | |
| 1132 noticeable glitches. real_current_modeline_height | |
| 1133 is a kludge to fix this for 19.14. */ | |
| 1134 modeline_height = real_current_modeline_height (w); | |
| 1135 } | |
| 1136 | |
| 1137 if (!EQ (Qzero, w->modeline_shadow_thickness) && FRAME_WIN_P (f)) | |
| 1138 modeline_height += (2 * MODELINE_SHADOW_THICKNESS (w)); | |
| 1139 } | |
| 1140 } | |
| 1141 | |
| 1142 return modeline_height; | |
| 1143 } | |
| 1144 | |
| 1145 /***************************************************************************** | |
| 1146 margin_width_internal | |
| 1147 | |
| 1148 For a given window, return the width in pixels of the specified margin. | |
| 1149 ****************************************************************************/ | |
| 1150 static int | |
| 1151 margin_width_internal (struct window *w, int left_margin) | |
| 1152 { | |
| 1153 int window_cwidth = window_char_width (w, 1); | |
| 1154 int margin_cwidth; | |
| 1155 int font_width; | |
| 1156 Lisp_Object window; | |
| 1157 | |
| 1158 /* We might be getting called on a non-leaf. */ | |
| 1159 if (NILP (w->buffer)) | |
| 1160 return 0; | |
| 1161 | |
| 1162 /* The minibuffer never has margins. */ | |
| 1163 if (MINI_WINDOW_P (w)) | |
| 1164 return 0; | |
| 1165 | |
| 793 | 1166 window = wrap_window (w); |
| 428 | 1167 margin_cwidth = (left_margin ? XINT (w->left_margin_width) : |
| 1168 XINT (w->right_margin_width)); | |
| 1169 | |
|
5047
07dcc7000bbf
put width before height consistently, fix a real bug found in the process
Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
1170 default_face_width_and_height (window, &font_width, 0); |
| 428 | 1171 |
| 1172 /* The left margin takes precedence over the right margin so we | |
| 1173 subtract its width from the space available for the right | |
| 1174 margin. */ | |
| 1175 if (!left_margin) | |
| 1176 window_cwidth -= XINT (w->left_margin_width); | |
| 1177 | |
| 1178 /* The margin cannot be wider than the window is. We allow the | |
| 1179 value to be bigger since it is possible for the user to enlarge | |
| 1180 the window such that the left margin value would no longer be too | |
| 1181 big, but we won't return a value that is larger. */ | |
| 1182 if (margin_cwidth > window_cwidth) | |
| 1183 margin_cwidth = window_cwidth; | |
| 1184 | |
| 1185 /* At the user level the margin is always specified in characters. | |
| 1186 Internally however it is manipulated in terms of pixels. */ | |
| 1187 return margin_cwidth * font_width; | |
| 1188 } | |
| 1189 | |
| 1190 int | |
| 1191 window_left_margin_width (struct window *w) | |
| 1192 { | |
| 1193 return margin_width_internal (w, 1); | |
| 1194 } | |
| 1195 | |
| 1196 int | |
| 1197 window_right_margin_width (struct window *w) | |
| 1198 { | |
| 1199 return margin_width_internal (w, 0); | |
| 1200 } | |
| 1201 | |
| 1202 /***************************************************************************** | |
| 1203 Window Gutters | |
| 1204 | |
| 1205 The gutters of a window are those areas in the boundary defined by | |
| 1206 w->pixel_top, w->pixel_left, w->pixel_height and w->pixel_width which | |
| 1207 do not contain text. Items which may be in the gutters include | |
| 1208 scrollbars, toolbars and modelines. The margin areas are not | |
| 1209 included. This is an exception made because redisplay special cases | |
| 1210 the handling of those areas in many places in such a way that | |
| 1211 including them in the gutter area would make life difficult. | |
| 1212 | |
| 1213 The size functions refer to height for the bottom and top gutters and | |
| 1214 width for the left and right gutters. The starting position | |
| 1215 functions refer to the Y coord for bottom and top gutters and the X | |
| 1216 coord for left and right gutters. All starting positions are | |
| 1217 relative to the frame, not the window. | |
| 1218 ****************************************************************************/ | |
| 1219 | |
| 442 | 1220 static int |
| 1221 window_top_window_gutter_height (struct window *w) | |
| 1222 { | |
| 428 | 1223 if (!NILP (w->hchild) || !NILP (w->vchild)) |
| 1224 return 0; | |
| 1225 | |
| 1226 #ifdef HAVE_SCROLLBARS | |
| 1227 if (!NILP (w->scrollbar_on_top_p)) | |
| 442 | 1228 return window_scrollbar_height (w); |
| 428 | 1229 else |
| 1230 #endif | |
| 442 | 1231 return 0; |
| 428 | 1232 } |
| 1233 | |
| 1234 int | |
| 442 | 1235 window_top_gutter_height (struct window *w) |
| 1236 { | |
| 1237 return window_top_window_gutter_height (w); | |
| 1238 } | |
| 1239 | |
| 1240 static int | |
| 1241 window_bottom_window_gutter_height (struct window *w) | |
| 1242 { | |
| 1243 int gutter; | |
| 428 | 1244 |
| 1245 if (!NILP (w->hchild) || !NILP (w->vchild)) | |
| 1246 return 0; | |
| 1247 | |
| 442 | 1248 gutter = window_modeline_height (w); |
| 428 | 1249 |
| 1250 #ifdef HAVE_SCROLLBARS | |
| 1251 if (NILP (w->scrollbar_on_top_p)) | |
| 1252 return window_scrollbar_height (w) + gutter; | |
| 1253 else | |
| 1254 #endif | |
| 1255 return gutter; | |
| 1256 } | |
| 1257 | |
| 1258 int | |
| 442 | 1259 window_bottom_gutter_height (struct window *w) |
| 1260 { | |
| 1261 return window_bottom_window_gutter_height (w); | |
| 1262 } | |
| 1263 | |
| 1264 static int | |
| 4932 | 1265 window_left_window_gutter_width (struct window *w, |
| 1266 int USED_IF_SCROLLBARS (modeline)) | |
| 442 | 1267 { |
| 428 | 1268 if (!NILP (w->hchild) || !NILP (w->vchild)) |
| 1269 return 0; | |
| 1270 | |
| 1271 #ifdef HAVE_SCROLLBARS | |
| 1272 if (!modeline && !NILP (w->scrollbar_on_left_p)) | |
| 442 | 1273 return window_scrollbar_width (w); |
| 428 | 1274 #endif |
| 1275 | |
| 442 | 1276 return 0; |
| 428 | 1277 } |
| 1278 | |
| 1279 int | |
| 442 | 1280 window_left_gutter_width (struct window *w, int modeline) |
| 1281 { | |
| 1282 return window_left_window_gutter_width (w, modeline); | |
| 1283 } | |
| 1284 | |
| 1285 static int | |
| 4932 | 1286 window_right_window_gutter_width (struct window *w, |
| 1287 int USED_IF_SCROLLBARS (modeline)) | |
| 442 | 1288 { |
| 1289 int gutter = 0; | |
| 428 | 1290 |
| 1291 if (!NILP (w->hchild) || !NILP (w->vchild)) | |
| 1292 return 0; | |
| 1293 | |
| 1294 #ifdef HAVE_SCROLLBARS | |
| 1295 if (!modeline && NILP (w->scrollbar_on_left_p)) | |
| 1296 gutter += window_scrollbar_width (w); | |
| 1297 #endif | |
| 1298 | |
| 1299 if (window_needs_vertical_divider (w)) | |
| 1300 gutter += window_divider_width (w); | |
| 1301 | |
| 1302 return gutter; | |
| 1303 } | |
| 1304 | |
| 442 | 1305 int |
| 1306 window_right_gutter_width (struct window *w, int modeline) | |
| 1307 { | |
| 1308 return window_right_window_gutter_width (w, modeline); | |
| 1309 } | |
| 1310 | |
| 1311 static int | |
| 1312 window_pixel_height (struct window* w) | |
| 1313 { | |
| 1314 return WINDOW_HEIGHT (w); | |
| 1315 } | |
| 1316 | |
| 428 | 1317 |
| 1318 DEFUN ("windowp", Fwindowp, 1, 1, 0, /* | |
| 444 | 1319 Return t if OBJECT is a window. |
| 428 | 1320 */ |
| 444 | 1321 (object)) |
| 1322 { | |
| 1323 return WINDOWP (object) ? Qt : Qnil; | |
| 428 | 1324 } |
| 1325 | |
| 1326 DEFUN ("window-live-p", Fwindow_live_p, 1, 1, 0, /* | |
| 444 | 1327 Return t if OBJECT is a window which is currently visible. |
| 428 | 1328 */ |
| 444 | 1329 (object)) |
| 1330 { | |
| 1331 return WINDOWP (object) && WINDOW_LIVE_P (XWINDOW (object)) | |
| 1332 ? Qt : Qnil; | |
| 428 | 1333 } |
| 1334 | |
| 1335 DEFUN ("selected-window", Fselected_window, 0, 1, 0, /* | |
| 1336 Return the window that the cursor now appears in and commands apply to. | |
| 1337 If the optional argument CON-DEV-OR-FRAME is specified and is a frame, return | |
| 1338 the selected window used by that frame. If CON-DEV-OR-FRAME is a device, | |
| 1339 then the selected frame on that device will be used. If CON-DEV-OR-FRAME | |
| 1340 is a console, the selected frame on that console's selected device will | |
| 1341 be used. Otherwise, the selected frame is used. | |
| 1342 */ | |
| 1343 (con_dev_or_frame)) | |
| 1344 { | |
| 1345 if (NILP (con_dev_or_frame) && NILP (Fselected_device (Qnil))) | |
| 1346 return Qnil; /* happens at startup */ | |
| 1347 | |
| 1348 { | |
| 1349 struct frame *f = decode_frame_or_selected (con_dev_or_frame); | |
| 1350 return FRAME_SELECTED_WINDOW (f); | |
| 1351 } | |
| 1352 } | |
| 1353 | |
| 1354 DEFUN ("last-nonminibuf-window", Flast_nonminibuf_window, 0, 1, 0, /* | |
| 1355 Return the last selected window that is not a minibuffer window. | |
| 1356 If the optional argument CON-DEV-OR-FRAME is specified and is a frame, | |
| 1357 return the last non-minibuffer window used by that frame. If | |
| 1358 CON-DEV-OR-FRAME is a device, then the selected frame on that device | |
| 1359 will be used. If CON-DEV-OR-FRAME is a console, the selected frame on | |
| 1360 that console's selected device will be used. Otherwise, the selected | |
| 1361 frame is used. | |
| 1362 */ | |
| 1363 (con_dev_or_frame)) | |
| 1364 { | |
| 1365 if (NILP (con_dev_or_frame) && NILP (Fselected_device (Qnil))) | |
| 1366 return Qnil; /* happens at startup */ | |
| 1367 | |
| 1368 { | |
| 1369 struct frame *f = decode_frame_or_selected (con_dev_or_frame); | |
| 1370 return FRAME_LAST_NONMINIBUF_WINDOW (f); | |
| 1371 } | |
| 1372 } | |
| 1373 | |
| 1374 DEFUN ("minibuffer-window", Fminibuffer_window, 0, 1, 0, /* | |
| 1375 Return the window used now for minibuffers. | |
| 1376 If the optional argument CON-DEV-OR-FRAME is specified and is a frame, return | |
| 1377 the minibuffer window used by that frame. If CON-DEV-OR-FRAME is a device, | |
| 1378 then the selected frame on that device will be used. If CON-DEV-OR-FRAME | |
| 1379 is a console, the selected frame on that console's selected device will | |
| 1380 be used. Otherwise, the selected frame is used. | |
| 1381 */ | |
| 1382 (con_dev_or_frame)) | |
| 1383 { | |
| 1384 return FRAME_MINIBUF_WINDOW (decode_frame_or_selected (con_dev_or_frame)); | |
| 1385 } | |
| 1386 | |
| 438 | 1387 DEFUN ("window-minibuffer-p", Fwindow_minibuffer_p, 0, 1, 0, /* |
| 428 | 1388 Return non-nil if WINDOW is a minibuffer window. |
| 1389 */ | |
| 1390 (window)) | |
| 1391 { | |
| 1392 return MINI_WINDOW_P (decode_window (window)) ? Qt : Qnil; | |
| 1393 } | |
| 1394 | |
| 1395 DEFUN ("window-first-hchild", Fwindow_first_hchild, 1, 1, 0, /* | |
| 1396 Return the first horizontal child of WINDOW, or nil. | |
| 1397 */ | |
| 1398 (window)) | |
| 1399 { | |
| 1400 return decode_window (window)->hchild; | |
| 1401 } | |
| 1402 | |
| 1403 DEFUN ("window-first-vchild", Fwindow_first_vchild, 1, 1, 0, /* | |
| 1404 Return the first vertical child of WINDOW, or nil. | |
| 1405 */ | |
| 1406 (window)) | |
| 1407 { | |
| 1408 return decode_window (window)->vchild; | |
| 1409 } | |
| 1410 | |
| 1411 DEFUN ("window-next-child", Fwindow_next_child, 1, 1, 0, /* | |
| 1412 Return the next window on the same level as WINDOW, or nil. | |
| 1413 */ | |
| 1414 (window)) | |
| 1415 { | |
| 1416 return decode_window (window)->next; | |
| 1417 } | |
| 1418 | |
| 1419 DEFUN ("window-previous-child", Fwindow_previous_child, 1, 1, 0, /* | |
| 1420 Return the previous window on the same level as WINDOW, or nil. | |
| 1421 */ | |
| 1422 (window)) | |
| 1423 { | |
| 1424 return decode_window (window)->prev; | |
| 1425 } | |
| 1426 | |
| 1427 DEFUN ("window-parent", Fwindow_parent, 1, 1, 0, /* | |
| 1428 Return the parent of WINDOW, or nil. | |
| 1429 */ | |
| 1430 (window)) | |
| 1431 { | |
| 1432 return decode_window (window)->parent; | |
| 1433 } | |
| 1434 | |
| 1435 DEFUN ("window-lowest-p", Fwindow_lowest_p, 1, 1, 0, /* | |
| 1436 Return non-nil if WINDOW is along the bottom of its frame. | |
| 1437 */ | |
| 1438 (window)) | |
| 1439 { | |
| 1440 return window_is_lowest (decode_window (window)) ? Qt : Qnil; | |
| 1441 } | |
| 1442 | |
| 1443 DEFUN ("window-highest-p", Fwindow_highest_p, 1, 1, 0, /* | |
| 1444 Return non-nil if WINDOW is along the top of its frame. | |
| 1445 */ | |
| 1446 (window)) | |
| 1447 { | |
| 1448 return window_is_highest (decode_window (window)) ? Qt : Qnil; | |
| 1449 } | |
| 1450 | |
| 1451 DEFUN ("window-leftmost-p", Fwindow_leftmost_p, 1, 1, 0, /* | |
| 1452 Return non-nil if WINDOW is along the left edge of its frame. | |
| 1453 */ | |
| 1454 (window)) | |
| 1455 { | |
| 1456 return window_is_leftmost (decode_window (window)) ? Qt : Qnil; | |
| 1457 } | |
| 1458 | |
| 1459 DEFUN ("window-rightmost-p", Fwindow_rightmost_p, 1, 1, 0, /* | |
| 1460 Return non-nil if WINDOW is along the right edge of its frame. | |
| 1461 */ | |
| 1462 (window)) | |
| 1463 { | |
| 1464 return window_is_rightmost (decode_window (window)) ? Qt : Qnil; | |
| 1465 } | |
| 1466 | |
| 1708 | 1467 DEFUN ("pos-visible-in-window-p", Fpos_visible_in_window_p, 0, 3, 0, /* |
| 1468 Returns t if position POS is currently on the frame in WINDOW. | |
| 428 | 1469 Returns nil if that position is scrolled vertically out of view. |
| 1708 | 1470 If a character is only partially visible, nil is returned, unless the |
| 1471 optional argument PARTIALLY is non-nil. | |
| 428 | 1472 POS defaults to point in WINDOW's buffer; WINDOW, to the selected window. |
| 1473 */ | |
| 1708 | 1474 (pos, window, partially)) |
| 428 | 1475 { |
| 1476 struct window *w = decode_window (window); | |
| 665 | 1477 Charbpos top = marker_position (w->start[CURRENT_DISP]); |
| 1478 Charbpos posint; | |
| 428 | 1479 struct buffer *buf = XBUFFER (w->buffer); |
| 1480 | |
| 1481 if (NILP (pos)) | |
| 1482 posint = BUF_PT (buf); | |
| 1483 else | |
| 1484 { | |
| 1485 CHECK_INT_COERCE_MARKER (pos); | |
| 1486 posint = XINT (pos); | |
| 1487 } | |
| 1488 | |
| 1489 if (posint < top || posint > BUF_ZV (buf)) | |
| 1490 return Qnil; | |
| 1491 | |
| 1492 /* w->start can be out of range. If it is, do something reasonable. */ | |
| 1493 if (top < BUF_BEGV (buf) || top > BUF_ZV (buf)) | |
| 1494 return Qnil; | |
| 1495 | |
| 1708 | 1496 return point_would_be_visible (w, top, posint, !NILP (partially)) |
| 1497 ? Qt : Qnil; | |
| 428 | 1498 } |
| 1499 | |
| 1500 | |
| 1501 struct window * | |
| 1502 decode_window (Lisp_Object window) | |
| 1503 { | |
| 1504 if (NILP (window)) | |
| 1505 return XWINDOW (Fselected_window (Qnil)); | |
| 1506 | |
| 1507 CHECK_LIVE_WINDOW (window); | |
| 1508 return XWINDOW (window); | |
| 1509 } | |
| 1510 | |
| 872 | 1511 int |
| 1512 window_live_p (struct window *w) | |
| 1513 { | |
| 1514 return WINDOW_LIVE_P (w); | |
| 1515 } | |
| 1516 | |
| 1517 Lisp_Object | |
| 1518 window_frame (struct window *w) | |
| 1519 { | |
| 1520 return WINDOW_FRAME (w); | |
| 1521 } | |
| 1522 | |
| 1523 Lisp_Object | |
| 1524 window_buffer (struct window *w) | |
| 1525 { | |
| 1526 return WINDOW_BUFFER (w); | |
| 1527 } | |
| 1528 | |
| 428 | 1529 DEFUN ("window-buffer", Fwindow_buffer, 0, 1, 0, /* |
| 1530 Return the buffer that WINDOW is displaying. | |
| 1531 */ | |
| 1532 (window)) | |
| 1533 { | |
| 1534 return decode_window (window)->buffer; | |
| 1535 } | |
| 1536 | |
| 1537 DEFUN ("window-frame", Fwindow_frame, 0, 1, 0, /* | |
| 1538 Return the frame that window WINDOW is on. | |
| 1539 */ | |
| 1540 (window)) | |
| 1541 { | |
| 1542 return decode_window (window)->frame; | |
| 1543 } | |
| 1544 | |
| 1545 DEFUN ("window-height", Fwindow_height, 0, 1, 0, /* | |
| 1546 Return the number of default lines in WINDOW. | |
| 1547 This actually works by dividing the window's pixel height (including | |
| 1548 the modeline and horizontal scrollbar, if any) by the height of the | |
| 1549 default font; therefore, the number of displayed lines will probably | |
| 1550 be different. | |
| 1551 Use `window-height' to get consistent results in geometry calculations. | |
| 1552 Use `window-displayed-height' to get the actual number of lines | |
| 1553 currently displayed in a window. | |
| 442 | 1554 |
| 1555 The names are somewhat confusing; here's a table to help out: | |
| 1556 | |
| 1557 width height | |
| 1558 ------------------------------------------------------------------------- | |
| 1559 w/o gutters | |
| 1560 (rows/columns) window-width window-text-area-height | |
| 1561 (pixels) window-text-area-pixel-width window-text-area-pixel-height | |
| 1562 | |
| 1563 with gutters | |
| 1564 (rows/columns) window-full-width window-height | |
| 1565 (pixels) window-pixel-width window-pixel-height | |
| 1566 | |
| 1567 actually displayed | |
| 1568 (rows/columns) ---- window-displayed-height | |
| 1569 (pixels) ---- window-displayed-text-pixel-height | |
| 428 | 1570 */ |
| 1571 (window)) | |
| 1572 { | |
| 1573 return make_int (window_char_height (decode_window (window), 1)); | |
| 1574 } | |
| 1575 | |
| 1576 DEFUN ("window-displayed-height", Fwindow_displayed_height, 0, 1, 0, /* | |
| 1577 Return the number of lines currently displayed in WINDOW. | |
| 1578 This counts the actual number of lines displayed in WINDOW | |
| 1579 \(as opposed to `window-height'). The modeline and horizontal | |
| 1580 scrollbar do not count as lines. If there is some blank space | |
| 1581 between the end of the buffer and the end of the window, this | |
| 1582 function pretends that there are lines of text in the default | |
| 1583 font there. | |
| 1584 */ | |
| 1585 (window)) | |
| 1586 { | |
| 1587 return make_int (window_displayed_height (decode_window (window))); | |
| 1588 } | |
| 1589 | |
| 1590 DEFUN ("window-pixel-height", Fwindow_pixel_height, 0, 1, 0, /* | |
| 1591 Return the height of WINDOW in pixels. Defaults to current window. | |
| 1592 This includes the window's modeline and horizontal scrollbar (if any). | |
| 1593 */ | |
| 1594 (window)) | |
| 1595 { | |
| 442 | 1596 return make_int (window_pixel_height (decode_window (window))); |
| 1597 } | |
| 1598 | |
| 1599 DEFUN ("window-text-area-height", Fwindow_text_area_height, 0, 1, 0, /* | |
| 1600 Return the number of default lines in the text area of WINDOW. | |
| 1601 This actually works by dividing the window's text area pixel height (i.e. | |
| 1602 excluding the modeline and horizontal scrollbar, if any) by the height of the | |
| 1603 default font; therefore, the number of displayed lines will probably | |
| 1604 be different. | |
| 1605 See also `window-height' and `window-displayed-height'. | |
| 1606 */ | |
| 1607 (window)) | |
| 1608 { | |
| 1609 return make_int (window_char_height (decode_window (window), 0)); | |
| 428 | 1610 } |
| 1611 | |
| 1612 DEFUN ("window-text-area-pixel-height", | |
| 1613 Fwindow_text_area_pixel_height, 0, 1, 0, /* | |
| 1614 Return the height in pixels of the text-displaying portion of WINDOW. | |
| 1615 Unlike `window-pixel-height', the space occupied by the modeline and | |
| 1616 horizontal scrollbar, if any, is not counted. | |
| 1617 */ | |
| 1618 (window)) | |
| 1619 { | |
| 1620 struct window *w = decode_window (window); | |
| 1621 | |
| 1622 return make_int (WINDOW_TEXT_HEIGHT (w)); | |
| 1623 } | |
| 1624 | |
| 1625 DEFUN ("window-displayed-text-pixel-height", | |
| 1626 Fwindow_displayed_text_pixel_height, 0, 2, 0, /* | |
| 1627 Return the height in pixels of the text displayed in WINDOW. | |
| 1628 Unlike `window-text-area-pixel-height', any blank space below the | |
| 1629 end of the buffer is not included. If optional argument NOCLIPPED | |
| 1630 is non-nil, do not include space occupied by clipped lines. | |
| 1631 */ | |
| 1632 (window, noclipped)) | |
| 1633 { | |
| 1634 struct window *w; | |
| 665 | 1635 Charbpos start, eobuf; |
| 428 | 1636 int defheight; |
| 1637 int hlimit, height, prev_height = -1; | |
| 1638 int line; | |
| 1639 int elt, nelt, i; | |
| 1640 int needed; | |
| 1641 line_start_cache_dynarr *cache; | |
| 1642 | |
| 1643 if (NILP (window)) | |
| 1644 window = Fselected_window (Qnil); | |
| 1645 | |
| 1646 CHECK_LIVE_WINDOW (window); | |
| 1647 w = XWINDOW (window); | |
| 1648 | |
| 1649 start = marker_position (w->start[CURRENT_DISP]); | |
| 1650 hlimit = WINDOW_TEXT_HEIGHT (w); | |
| 1651 eobuf = BUF_ZV (XBUFFER (w->buffer)); | |
| 1652 | |
|
5047
07dcc7000bbf
put width before height consistently, fix a real bug found in the process
Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
1653 default_face_width_and_height (window, NULL, &defheight); |
| 428 | 1654 |
| 1655 /* guess lines needed in line start cache + a few extra */ | |
| 1656 needed = (hlimit + defheight-1) / defheight + 3; | |
| 1657 | |
| 1658 while (1) { | |
| 1659 elt = point_in_line_start_cache (w, start, needed); | |
| 1660 assert (elt >= 0); /* in the cache */ | |
| 1661 | |
| 1662 cache = w->line_start_cache; | |
| 1663 nelt = Dynarr_length (cache); | |
| 1664 | |
| 1665 height = 0; | |
| 1666 for (i = elt; i < nelt; i++) { | |
| 1667 line = Dynarr_atp (cache, i)->height; | |
| 1668 | |
| 1669 if (height + line > hlimit) | |
| 1670 return make_int (!NILP (noclipped) ? height : hlimit); | |
| 1671 | |
| 1672 height += line; | |
| 1673 | |
| 1674 if (height == hlimit || Dynarr_atp (cache, i)->end >= eobuf) | |
| 1675 return make_int (height); | |
| 1676 } | |
| 1677 | |
| 1678 /* get here => need more cache lines. try again. */ | |
| 1679 assert(height > prev_height); /* progress? */ | |
| 1680 prev_height = height; | |
| 1681 | |
| 1682 needed += ((hlimit - height)*(nelt - elt) + height-1)/height + 3; | |
| 1683 } | |
| 1684 | |
| 1204 | 1685 RETURN_NOT_REACHED(make_int (0)); /* shut up compiler */ |
| 428 | 1686 } |
| 1687 | |
| 1688 DEFUN ("window-width", Fwindow_width, 0, 1, 0, /* | |
| 1689 Return the number of display columns in WINDOW. | |
| 442 | 1690 This is the width that is usable columns available for text in WINDOW, |
| 1691 and does not include vertical scrollbars, dividers, or the like. See also | |
| 1692 `window-full-width' and `window-height'. | |
| 428 | 1693 */ |
| 1694 (window)) | |
| 1695 { | |
| 1696 return make_int (window_char_width (decode_window (window), 0)); | |
| 1697 } | |
| 1698 | |
| 442 | 1699 DEFUN ("window-full-width", Fwindow_full_width, 0, 1, 0, /* |
| 1700 Return the total number of columns in WINDOW. | |
| 1701 This is like `window-width' but includes vertical scrollbars, dividers, | |
| 1702 etc. | |
| 1703 */ | |
| 1704 (window)) | |
| 1705 { | |
| 1706 return make_int (window_char_width (decode_window (window), 1)); | |
| 1707 } | |
| 1708 | |
| 428 | 1709 DEFUN ("window-pixel-width", Fwindow_pixel_width, 0, 1, 0, /* |
| 1710 Return the width of WINDOW in pixels. Defaults to current window. | |
| 1711 */ | |
| 1712 (window)) | |
| 1713 { | |
| 1714 return make_int (decode_window (window)->pixel_width); | |
| 1715 } | |
| 1716 | |
| 1717 DEFUN ("window-text-area-pixel-width", | |
| 1718 Fwindow_text_area_pixel_width, 0, 1, 0, /* | |
| 1719 Return the width in pixels of the text-displaying portion of WINDOW. | |
| 1720 Unlike `window-pixel-width', the space occupied by the vertical | |
| 1721 scrollbar or divider, if any, is not counted. | |
| 1722 */ | |
| 1723 (window)) | |
| 1724 { | |
| 1725 struct window *w = decode_window (window); | |
| 1726 | |
| 1727 return make_int (WINDOW_TEXT_WIDTH (w)); | |
| 1728 } | |
| 1729 | |
| 1730 DEFUN ("window-hscroll", Fwindow_hscroll, 0, 1, 0, /* | |
| 1731 Return the number of columns by which WINDOW is scrolled from left margin. | |
| 1732 */ | |
| 1733 (window)) | |
| 1734 { | |
| 1735 return make_int (decode_window (window)->hscroll); | |
| 1736 } | |
| 1737 | |
| 1738 DEFUN ("modeline-hscroll", Fmodeline_hscroll, 0, 1, 0, /* | |
| 442 | 1739 Return the horizontal scrolling amount of WINDOW's modeline. |
| 438 | 1740 If the window has no modeline, return nil. |
| 428 | 1741 */ |
| 1742 (window)) | |
| 1743 { | |
| 1744 struct window *w = decode_window (window); | |
| 1745 | |
| 438 | 1746 return (WINDOW_HAS_MODELINE_P (w)) ? make_int ((int) w->modeline_hscroll) : |
| 1747 Qnil; | |
| 428 | 1748 } |
| 1749 | |
| 1750 DEFUN ("set-modeline-hscroll", Fset_modeline_hscroll, 2, 2, 0, /* | |
| 442 | 1751 Set the horizontal scrolling amount of WINDOW's modeline to NCOL. |
| 438 | 1752 If NCOL is negative, it will silently be forced to 0. |
| 1753 If the window has no modeline, return nil. Otherwise, return the actual | |
| 1754 value that was set. | |
| 428 | 1755 */ |
| 1756 (window, ncol)) | |
| 1757 { | |
| 1758 struct window *w = decode_window (window); | |
| 1759 | |
| 1760 if (WINDOW_HAS_MODELINE_P (w)) | |
| 1761 { | |
| 438 | 1762 Charcount ncols; |
| 1763 | |
| 428 | 1764 CHECK_INT (ncol); |
| 438 | 1765 ncols = (XINT (ncol) <= 0) ? 0 : (Charcount) XINT (ncol); |
| 1766 if (ncols != w->modeline_hscroll) | |
| 1767 { | |
| 1768 MARK_MODELINE_CHANGED; | |
| 1769 w->modeline_hscroll = ncols; | |
| 1770 } | |
| 1771 return make_int ((int) ncols); | |
| 428 | 1772 } |
| 438 | 1773 |
| 428 | 1774 return Qnil; |
| 1775 } | |
| 1776 | |
| 1777 DEFUN ("set-window-hscroll", Fset_window_hscroll, 2, 2, 0, /* | |
| 1778 Set number of columns WINDOW is scrolled from left margin to NCOL. | |
| 1779 NCOL should be zero or positive. | |
| 1780 */ | |
| 1781 (window, ncol)) | |
| 1782 { | |
| 1783 struct window *w; | |
| 1784 int ncols; | |
| 1785 | |
| 1786 CHECK_INT (ncol); | |
| 1787 ncols = XINT (ncol); | |
| 1788 if (ncols < 0) ncols = 0; | |
| 1789 w = decode_window (window); | |
| 1790 if (w->hscroll != ncols) | |
| 1791 MARK_CLIP_CHANGED; /* FSF marks differently but we aren't FSF. */ | |
| 1792 w->hscroll = ncols; | |
| 1793 return ncol; | |
| 1794 } | |
| 1795 | |
| 1796 DEFUN ("window-pixel-edges", Fwindow_pixel_edges, 0, 1, 0, /* | |
| 1797 Return a list of the pixel edge coordinates of WINDOW. | |
| 444 | 1798 The returned list is of the form (LEFT TOP RIGHT BOTTOM), |
| 1799 all relative to 0, 0 at the top left corner of WINDOW's frame. | |
| 1800 The frame toolbars, menubars and gutters are considered to be outside | |
| 1801 of this area, while the scrollbars are considered to be inside. | |
| 428 | 1802 */ |
| 1803 (window)) | |
| 1804 { | |
| 1805 struct window *w = decode_window (window); | |
| 1806 struct frame *f = XFRAME (w->frame); | |
| 1807 | |
| 5090 | 1808 int left = w->pixel_left - FRAME_PANED_LEFT_EDGE (f); |
| 1809 int top = w->pixel_top - FRAME_PANED_TOP_EDGE (f); | |
| 428 | 1810 |
| 1811 return list4 (make_int (left), | |
| 1812 make_int (top), | |
| 1813 make_int (left + w->pixel_width), | |
| 1814 make_int (top + w->pixel_height)); | |
| 1815 } | |
| 1816 | |
| 1817 DEFUN ("window-text-area-pixel-edges", | |
| 1818 Fwindow_text_area_pixel_edges, 0, 1, 0, /* | |
| 1819 Return a list of the pixel edge coordinates of the text area of WINDOW. | |
| 444 | 1820 The returned list is of the form (LEFT TOP RIGHT BOTTOM), |
| 1821 all relative to 0, 0 at the top left corner of the total area allocated | |
| 1822 to the window, which includes the scrollbars. | |
| 428 | 1823 */ |
| 1824 (window)) | |
| 1825 { | |
| 1826 struct window *w = decode_window (window); | |
| 1827 | |
| 1828 int left = window_left_gutter_width (w, /* modeline = */ 0); | |
| 1829 int top = window_top_gutter_height (w); | |
| 1830 int right = WINDOW_WIDTH (w) - window_right_gutter_width (w, 0); | |
| 1831 int bottom = WINDOW_HEIGHT (w) - window_bottom_gutter_height (w); | |
| 1832 | |
| 1833 return list4 (make_int (left), | |
| 1834 make_int (top), | |
| 1835 make_int (right), | |
| 1836 make_int (bottom)); | |
| 1837 } | |
| 1838 | |
| 1839 DEFUN ("window-point", Fwindow_point, 0, 1, 0, /* | |
| 1840 Return current value of point in WINDOW. | |
| 442 | 1841 For a non-selected window, this is the value point would have |
| 428 | 1842 if that window were selected. |
| 1843 | |
| 1844 Note that, when WINDOW is the selected window and its buffer | |
| 1845 is also currently selected, the value returned is the same as (point). | |
| 1846 It would be more strictly correct to return the `top-level' value | |
| 1847 of point, outside of any save-excursion forms. | |
| 444 | 1848 But that value is hard to find. |
| 428 | 1849 */ |
| 1850 (window)) | |
| 1851 { | |
| 1852 struct window *w = decode_window (window); | |
| 1853 | |
| 1854 /* The special check for current buffer is necessary for this | |
| 1855 function to work as defined when called within an excursion. */ | |
| 1856 if (w == XWINDOW (Fselected_window (XFRAME (w->frame)->device)) | |
| 1857 && current_buffer == XBUFFER (w->buffer)) | |
| 1858 return Fpoint (Qnil); | |
| 1859 return Fmarker_position (w->pointm[CURRENT_DISP]); | |
| 1860 } | |
| 1861 | |
| 1862 DEFUN ("window-start", Fwindow_start, 0, 1, 0, /* | |
| 1863 Return position at which display currently starts in WINDOW. | |
| 1864 This is updated by redisplay or by calling `set-window-start'. | |
| 1865 */ | |
| 1866 (window)) | |
| 1867 { | |
| 1868 return Fmarker_position (decode_window (window)->start[CURRENT_DISP]); | |
| 1869 } | |
| 1870 | |
| 1871 DEFUN ("window-end", Fwindow_end, 0, 2, 0, /* | |
| 1872 Return position at which display currently ends in WINDOW. | |
| 1873 This is updated by redisplay, when it runs to completion. | |
| 444 | 1874 Simply changing the buffer text or setting `window-start' does not |
| 1875 update this value. WINDOW defaults to the selected window. | |
| 1876 | |
| 1877 If optional arg GUARANTEE is non-nil, the return value is guaranteed | |
| 1878 to be the same value as this function would return at the end of the | |
| 1879 next full redisplay assuming nothing else changes in the meantime. | |
| 1880 This function is potentially much slower with this flag set. | |
| 428 | 1881 */ |
| 1882 (window, guarantee)) | |
| 1883 { | |
| 1884 struct window *w = decode_window (window); | |
| 1885 | |
| 1886 if (NILP (guarantee)) | |
| 1887 { | |
| 1888 Lisp_Object buf; | |
| 1889 buf = w->buffer; | |
| 1890 CHECK_BUFFER (buf); | |
| 1891 return make_int (BUF_Z (XBUFFER (buf)) - w->window_end_pos[CURRENT_DISP]); | |
| 1892 } | |
| 1893 else | |
| 1894 { | |
| 665 | 1895 Charbpos startp = marker_position (w->start[CURRENT_DISP]); |
| 428 | 1896 return make_int (end_of_last_line (w, startp)); |
| 1897 } | |
| 1898 } | |
| 1899 | |
| 442 | 1900 DEFUN ("window-last-line-visible-height", Fwindow_last_line_visible_height, 0, 1, 0, /* |
| 1901 Return pixel height of visible part of last window line if it is clipped. | |
| 1902 If the last line is not clipped, return nil. | |
| 1903 */ | |
| 1904 (window)) | |
| 1905 { | |
| 1906 struct window *w = decode_window (window); | |
| 1907 display_line_dynarr *dla = window_display_lines (w, CURRENT_DISP); | |
| 1908 int num_lines = Dynarr_length (dla); | |
| 1909 struct display_line *dl; | |
| 1910 | |
| 1911 /* No lines - no clipped lines */ | |
| 4967 | 1912 if (num_lines == 0 || (num_lines == 1 && Dynarr_begin (dla)->modeline)) |
| 442 | 1913 return Qnil; |
| 1914 | |
| 1915 dl = Dynarr_atp (dla, num_lines - 1); | |
| 1916 if (dl->clip == 0) | |
| 1917 return Qnil; | |
| 1918 | |
| 1919 return make_int (dl->ascent + dl->descent - dl->clip); | |
| 1920 } | |
| 1921 | |
| 428 | 1922 DEFUN ("set-window-point", Fset_window_point, 2, 2, 0, /* |
| 1923 Make point value in WINDOW be at position POS in WINDOW's buffer. | |
| 1161 | 1924 If WINDOW is the selected window, and window's buffer is the current |
| 1925 buffer, this actually changes the buffer's point instead of the window's | |
| 1926 point. (The equivalence of the selected window's point with its buffer's | |
| 1927 point is maintained throughout XEmacs. However, enforcing the additional | |
| 1928 restriction on the current buffer is "bug compatible" with FSF and is | |
| 1929 perhaps more logical.) | |
| 428 | 1930 */ |
| 1931 (window, pos)) | |
| 1932 { | |
| 1933 struct window *w = decode_window (window); | |
| 1934 | |
| 1935 CHECK_INT_COERCE_MARKER (pos); | |
| 1161 | 1936 |
| 844 | 1937 /* Don't dereference selected-window because there may not |
| 1938 be one -- e.g. at startup */ | |
| 1161 | 1939 if (EQ (wrap_window (w), Fselected_window (Qnil)) |
| 1940 && EQ (w->buffer, Fcurrent_buffer ())) | |
| 1941 Fgoto_char (pos, Qnil); | |
| 428 | 1942 else |
| 1943 set_marker_restricted (w->pointm[CURRENT_DISP], pos, w->buffer); | |
| 1944 | |
| 1945 MARK_POINT_CHANGED; | |
| 1946 return pos; | |
| 1947 } | |
| 1948 | |
| 1949 DEFUN ("set-window-start", Fset_window_start, 2, 3, 0, /* | |
| 1950 Make display in WINDOW start at position POS in WINDOW's buffer. | |
| 1951 Optional third arg NOFORCE non-nil inhibits next redisplay | |
| 1952 from overriding motion of point in order to display at this exact start. | |
| 1953 */ | |
| 1954 (window, pos, noforce)) | |
| 1955 { | |
| 1956 struct window *w = decode_window (window); | |
| 1957 | |
| 1958 CHECK_INT_COERCE_MARKER (pos); | |
| 1959 set_marker_restricted (w->start[CURRENT_DISP], pos, w->buffer); | |
| 1960 /* this is not right, but much easier than doing what is right. */ | |
| 1961 /* w->start_at_line_beg = 0; */ | |
| 1962 /* WTF is the above supposed to mean? GE */ | |
| 1963 w->start_at_line_beg = beginning_of_line_p (XBUFFER (w->buffer), | |
| 1964 marker_position (w->start[CURRENT_DISP])); | |
| 1965 if (NILP (noforce)) | |
| 1966 w->force_start = 1; | |
| 1967 w->redo_modeline = 1; | |
| 1968 SET_LAST_MODIFIED (w, 0); | |
| 1969 SET_LAST_FACECHANGE (w); | |
| 1970 | |
| 1971 MARK_WINDOWS_CHANGED (w); | |
| 1972 | |
| 1973 return pos; | |
| 1974 } | |
| 1975 | |
| 1976 DEFUN ("window-dedicated-p", Fwindow_dedicated_p, 1, 1, 0, /* | |
| 1977 Return WINDOW's dedicated object, usually t or nil. | |
| 1978 See also `set-window-dedicated-p'. | |
| 1979 */ | |
| 1980 (window)) | |
| 1981 { | |
| 1982 return decode_window (window)->dedicated; | |
| 1983 } | |
| 1984 | |
| 1985 DEFUN ("set-window-dedicated-p", Fset_window_dedicated_p, 2, 2, 0, /* | |
| 1986 Control whether WINDOW is dedicated to the buffer it displays. | |
| 1987 If it is dedicated, Emacs will not automatically change | |
| 1988 which buffer appears in it. | |
| 1989 The second argument is the new value for the dedication flag; | |
| 1990 non-nil means yes. | |
| 1991 */ | |
| 1992 (window, arg)) | |
| 1993 { | |
| 1994 struct window *w = decode_window (window); | |
| 1995 | |
| 1996 w->dedicated = NILP (arg) ? Qnil : Qt; | |
| 1997 | |
| 1998 return w->dedicated; | |
| 1999 } | |
| 2000 | |
| 2001 /* FSFmacs has window-display-table here. We have display table as a | |
| 2002 specifier. */ | |
| 2003 | |
| 2004 | |
| 2005 /* Record info on buffer window w is displaying | |
| 2006 when it is about to cease to display that buffer. */ | |
| 2007 static void | |
| 2008 unshow_buffer (struct window *w) | |
| 2009 { | |
| 2010 Lisp_Object buf = w->buffer; | |
| 844 | 2011 struct buffer *b = XBUFFER (buf); |
| 2012 | |
|
5050
6f2158fa75ed
Fix quick-build, use asserts() in place of ABORT()
Ben Wing <ben@xemacs.org>
parents:
4967
diff
changeset
|
2013 assert (b == XMARKER (w->pointm[CURRENT_DISP])->buffer); |
| 428 | 2014 |
| 2015 /* FSF disables this check, so I'll do it too. I hope it won't | |
| 2016 break things. --ben */ | |
| 2017 #if 0 | |
| 2018 if (w == XWINDOW (Fselected_window (Qnil)) | |
| 2019 || ! EQ (buf, XWINDOW (Fselected_window (Qnil))->buffer)) | |
| 2020 /* Do this except when the selected window's buffer | |
| 2021 is being removed from some other window. */ | |
| 2022 #endif | |
| 2023 /* last_window_start records the start position that this buffer | |
| 2024 had in the last window to be disconnected from it. | |
| 2025 Now that this statement is unconditional, | |
| 2026 it is possible for the buffer to be displayed in the | |
| 2027 selected window, while last_window_start reflects another | |
| 2028 window which was recently showing the same buffer. | |
| 2029 Some people might say that might be a good thing. Let's see. */ | |
| 2030 XBUFFER (buf)->last_window_start = | |
| 2031 marker_position (w->start[CURRENT_DISP]); | |
| 2032 | |
| 2033 /* Point in the selected window's buffer | |
| 2034 is actually stored in that buffer, and the window's pointm isn't used. | |
| 2035 So don't clobber point in that buffer. */ | |
| 2036 if (! EQ (buf, XWINDOW (Fselected_window (Qnil))->buffer)) | |
| 844 | 2037 BUF_SET_PT (b, |
| 2038 charbpos_clip_to_bounds | |
| 2039 (BUF_BEGV (b), | |
| 2040 marker_position (w->pointm[CURRENT_DISP]), | |
| 2041 BUF_ZV (b))); | |
| 2042 | |
| 2043 { | |
| 2044 Lisp_Object marker = Fgethash (buf, w->saved_point_cache, Qnil); | |
| 2045 int selected = EQ (wrap_window (w), Fselected_window (Qnil)); | |
| 2046 | |
| 2047 if (NILP (marker)) | |
| 2048 { | |
| 2049 marker = Fmake_marker (); | |
| 2050 Fputhash (buf, marker, w->saved_point_cache); | |
| 2051 } | |
| 2052 Fset_marker (marker, | |
| 2053 selected ? make_int (BUF_PT (b)) : w->pointm[CURRENT_DISP], | |
| 2054 buf); | |
| 2055 | |
| 2056 marker = Fgethash (buf, w->saved_last_window_start_cache, Qnil); | |
| 2057 | |
| 2058 if (NILP (marker)) | |
| 2059 { | |
| 2060 marker = Fmake_marker (); | |
| 2061 Fputhash (buf, marker, w->saved_last_window_start_cache); | |
| 2062 } | |
| 2063 Fset_marker (marker, w->start[CURRENT_DISP], buf); | |
| 2064 } | |
| 428 | 2065 } |
| 2066 | |
| 2067 /* Put REPLACEMENT into the window structure in place of OLD. */ | |
| 2068 static void | |
| 2069 replace_window (Lisp_Object old, Lisp_Object replacement) | |
| 2070 { | |
| 2071 Lisp_Object tem; | |
| 2072 struct window *o = XWINDOW (old), *p = XWINDOW (replacement); | |
| 2073 | |
| 2074 /* If OLD is its frame's root_window, then replacement is the new | |
| 2075 root_window for that frame. */ | |
| 2076 | |
| 2077 if (EQ (old, FRAME_ROOT_WINDOW (XFRAME (o->frame)))) | |
| 2078 FRAME_ROOT_WINDOW (XFRAME (o->frame)) = replacement; | |
| 2079 | |
| 2080 WINDOW_LEFT (p) = WINDOW_LEFT (o); | |
| 2081 WINDOW_TOP (p) = WINDOW_TOP (o); | |
| 2082 WINDOW_WIDTH (p) = WINDOW_WIDTH (o); | |
| 2083 WINDOW_HEIGHT (p) = WINDOW_HEIGHT (o); | |
| 2084 | |
| 2085 p->next = tem = o->next; | |
| 2086 if (!NILP (tem)) | |
| 2087 XWINDOW (tem)->prev = replacement; | |
| 2088 | |
| 2089 p->prev = tem = o->prev; | |
| 2090 if (!NILP (tem)) | |
| 2091 XWINDOW (tem)->next = replacement; | |
| 2092 | |
| 2093 p->parent = tem = o->parent; | |
| 2094 if (!NILP (tem)) | |
| 2095 { | |
| 2096 if (EQ (XWINDOW (tem)->vchild, old)) | |
| 2097 XWINDOW (tem)->vchild = replacement; | |
| 2098 if (EQ (XWINDOW (tem)->hchild, old)) | |
| 2099 XWINDOW (tem)->hchild = replacement; | |
| 2100 } | |
| 2101 | |
| 2102 /* #### Here, if replacement is a vertical combination | |
| 2103 and so is its new parent, we should make replacement's | |
| 2104 children be children of that parent instead. */ | |
| 442 | 2105 |
| 2106 ERROR_CHECK_SUBWINDOW_CACHE (p); | |
| 2107 } | |
| 2108 | |
| 2109 static void | |
| 2110 window_unmap_subwindows (struct window* w) | |
| 2111 { | |
| 2112 assert (!NILP (w->subwindow_instance_cache)); | |
| 2113 elisp_maphash (unmap_subwindow_instance_cache_mapper, | |
| 2114 w->subwindow_instance_cache, (void*)1); | |
| 428 | 2115 } |
| 2116 | |
| 2117 /* we're deleting W; set the structure of W to indicate this. */ | |
| 2118 | |
| 2119 static void | |
| 2120 mark_window_as_deleted (struct window *w) | |
| 2121 { | |
| 442 | 2122 /* The window instance cache is going away now, so need to get the |
| 2123 cachels reset by redisplay. */ | |
| 2124 MARK_FRAME_SUBWINDOWS_CHANGED (XFRAME (WINDOW_FRAME (w))); | |
| 2125 | |
| 2126 /* The cache is going away. If we leave unmapping to | |
| 2127 reset_subwindow_cachels then we get in a situation where the | |
| 2128 domain (the window) has been deleted but we still need access to | |
| 2129 its attributes in order to unmap windows properly. Since the | |
| 2130 subwindows are going to get GC'd anyway as a result of the domain | |
| 2131 going away, it is safer to just unmap them all while we know the | |
| 2132 domain is still valid. */ | |
| 2133 ERROR_CHECK_SUBWINDOW_CACHE (w); | |
| 2134 window_unmap_subwindows (w); | |
| 2135 | |
| 617 | 2136 /* Free the extra data structures attached to windows immediately so |
| 2137 they don't sit around consuming excess space. They will be | |
| 2138 reinitialized by the window-configuration code as necessary. */ | |
|
5127
a9c41067dd88
more cleanups, terminology clarification, lots of doc work
Ben Wing <ben@xemacs.org>
parents:
5126
diff
changeset
|
2139 finalize_window (wrap_window (w)); |
| 617 | 2140 |
| 1149 | 2141 /* Nobody should be accessing anything in this object any more, |
| 618 | 2142 and making them Qnil allows for better GC'ing in case a pointer |
| 2143 to the dead window continues to hang around. Zero all other | |
| 2144 structs in case someone tries to access something through them. | |
| 2145 | |
| 2146 (So, in point of fact, we zero out all of the "saved" slots, | |
| 2147 which are obviously restored from the window config, plus the | |
| 2148 slots which were already zeroed.) | |
| 617 | 2149 |
| 2150 As an example of why setting the values to Qnil is good, here | |
| 2151 is an old comment: | |
| 2152 | |
| 2153 In the loop | |
| 428 | 2154 (while t (split-window) (delete-window)) |
| 2155 we end up with a tree of deleted windows which are all connected | |
| 2156 through the `next' slot. This might not seem so bad, as they're | |
| 2157 deleted, and will presumably be GCed - but if even *one* of those | |
| 2158 windows is still being pointed to, by the user, or by a window | |
| 1149 | 2159 configuration, then *all* of those windows stick around. */ |
| 617 | 2160 |
| 618 | 2161 #define WINDOW_SLOT(slot) |
| 2162 #define WINDOW_SAVED_SLOT(slot, compare) w->slot = Qnil; | |
| 617 | 2163 #include "winslots.h" |
| 428 | 2164 |
| 618 | 2165 w->next = Qnil; |
| 2166 w->prev = Qnil; | |
| 2167 w->hchild = Qnil; | |
| 2168 w->vchild = Qnil; | |
| 2169 w->parent = Qnil; | |
| 2170 w->subwindow_instance_cache = Qnil; | |
| 2171 | |
| 428 | 2172 w->dead = 1; |
| 853 | 2173 note_object_deleted (wrap_window (w)); |
| 428 | 2174 } |
| 2175 | |
| 1207 | 2176 /* Check if window contains pwindow. */ |
| 2177 | |
| 2178 static int | |
| 2179 contains_window (Lisp_Object window, Lisp_Object pwindow) | |
| 2180 { | |
| 2181 while (!NILP (pwindow)) | |
| 2182 { | |
| 2183 if (EQ (window, pwindow)) | |
| 2184 return 1; | |
| 2185 pwindow = XWINDOW (pwindow)->parent; | |
| 2186 } | |
| 2187 return 0; | |
| 2188 } | |
| 2189 | |
| 428 | 2190 DEFUN ("delete-window", Fdelete_window, 0, 2, "", /* |
| 2191 Remove WINDOW from the display. Default is selected window. | |
| 444 | 2192 If window is the only one on its frame, the frame is deleted as well. |
| 428 | 2193 Normally, you cannot delete the last non-minibuffer-only frame (you must |
| 2194 use `save-buffers-kill-emacs' or `kill-emacs'). However, if optional | |
| 2195 second argument FORCE is non-nil, you can delete the last frame. (This | |
| 2196 will automatically call `save-buffers-kill-emacs'.) | |
| 2197 */ | |
| 2198 (window, force)) | |
| 2199 { | |
| 2200 /* This function can GC if this is the only window in the frame */ | |
| 2201 struct window *w; | |
| 2202 Lisp_Object parent; | |
| 2203 struct window *par; | |
| 2204 Lisp_Object frame; | |
| 2205 struct frame *f; | |
| 2206 struct device *d; | |
| 2207 | |
| 2208 /* Note: this function is called by other C code on non-leaf | |
| 2209 windows. */ | |
| 2210 | |
| 2211 /* Do the equivalent of decode_window() but don't error out on | |
| 2212 deleted window; it's OK to delete an already-deleted window. */ | |
| 2213 if (NILP (window)) | |
| 2214 window = Fselected_window (Qnil); | |
| 2215 else | |
| 2216 CHECK_WINDOW (window); | |
| 442 | 2217 |
| 428 | 2218 w = XWINDOW (window); |
| 2219 | |
| 2220 /* It's okay to delete an already-deleted window. */ | |
| 2221 if (! WINDOW_LIVE_P (w)) | |
| 2222 return Qnil; | |
| 2223 | |
| 853 | 2224 check_allowed_operation (OPERATION_DELETE_OBJECT, window, Qnil); |
| 2225 | |
| 428 | 2226 frame = WINDOW_FRAME (w); |
| 2227 f = XFRAME (frame); | |
| 2228 d = XDEVICE (FRAME_DEVICE (f)); | |
| 2229 | |
| 2230 if (TOP_LEVEL_WINDOW_P (w)) | |
| 2231 { | |
| 2232 if (NILP (memq_no_quit (frame, DEVICE_FRAME_LIST (d)))) | |
| 2233 /* this frame isn't fully initialized yet; don't blow up. */ | |
| 2234 return Qnil; | |
| 2235 | |
| 2236 if (MINI_WINDOW_P (XWINDOW (window))) | |
| 563 | 2237 signal_error (Qinvalid_operation, "Attempt to delete the minibuffer window", Qunbound); |
| 428 | 2238 |
| 2239 /* It has been suggested that it's a good thing for C-x 0 to have this | |
| 2240 behavior, but not such a good idea for #'delete-window to have it. | |
| 2241 Maybe C-x 0 should be bound to something else, or maybe frame | |
| 2242 deletion should only happen when this is called interactively. | |
| 2243 */ | |
| 2244 delete_frame_internal (f, !NILP (force), 0, 0); | |
| 2245 return Qnil; | |
| 2246 } | |
| 2247 | |
| 2248 /* At this point, we know the window has a parent. */ | |
| 2249 parent = w->parent; | |
| 2250 par = XWINDOW (parent); | |
| 2251 | |
| 2252 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f); | |
| 430 | 2253 /* It's quite likely that deleting a window will result in |
| 2254 subwindows needing to be deleted also (since they are cached | |
| 2255 per-window). So we mark them as changed, so that the cachels will | |
| 2256 get reset by redisplay and thus deleted subwindows can get | |
| 2257 GC'd. */ | |
| 2258 MARK_FRAME_SUBWINDOWS_CHANGED (f); | |
| 428 | 2259 |
| 2260 /* Are we trying to delete any frame's selected window? | |
| 2261 Note that we could be dealing with a non-leaf window | |
| 2262 where the selected window is one of our children. | |
| 2263 So, we check by scanning all the ancestors of the | |
| 2264 frame's selected window and comparing each one with | |
| 2265 WINDOW. */ | |
| 1207 | 2266 if (contains_window (window, FRAME_SELECTED_WINDOW (f))) |
| 2267 { | |
| 2268 Lisp_Object alternative; | |
| 2269 alternative = Fnext_window (window, Qlambda, Qnil, Qnil); | |
| 2270 | |
| 2271 /* #### */ | |
| 2272 /* If we're about to delete the selected window on the | |
| 2273 selected frame, then we should use Fselect_window to select | |
| 2274 the new window. On the other hand, if we're about to | |
| 2275 delete the selected window on any other frame, we shouldn't do | |
| 2276 anything but set the frame's selected_window slot. */ | |
| 2277 if (EQ (frame, Fselected_frame (Qnil))) | |
| 2278 Fselect_window (alternative, Qnil); | |
| 2279 else | |
| 2280 set_frame_selected_window (f, alternative); | |
| 2281 } | |
| 2282 | |
| 2283 /* Some display parameters (gutter display specifically) depend on | |
| 2284 FRAME_LAST_NONMINIBUF (f) to be set to a live window. Ensure that. */ | |
| 2285 if (contains_window (window, FRAME_LAST_NONMINIBUF_WINDOW (f))) | |
| 2286 f->last_nonminibuf_window = Fnext_window (window, Qlambda, Qnil, Qnil); | |
| 428 | 2287 |
| 2288 /* w->buffer is nil in a non-leaf window; in this case, | |
| 2289 get rid of the markers we maintain that point into that buffer. */ | |
| 2290 if (!NILP (w->buffer)) | |
| 2291 { | |
| 2292 unshow_buffer (w); | |
| 2293 unchain_marker (w->pointm[CURRENT_DISP]); | |
| 2294 unchain_marker (w->pointm[DESIRED_DISP]); | |
| 2295 unchain_marker (w->pointm[CMOTION_DISP]); | |
| 2296 unchain_marker (w->start[CURRENT_DISP]); | |
| 2297 unchain_marker (w->start[DESIRED_DISP]); | |
| 2298 unchain_marker (w->start[CMOTION_DISP]); | |
| 2299 unchain_marker (w->sb_point); | |
| 1149 | 2300 w->buffer = Qnil; |
| 428 | 2301 } |
| 2302 | |
| 2303 /* close up the hole in the sibling list */ | |
| 2304 if (!NILP (w->next)) | |
| 2305 XWINDOW (w->next)->prev = w->prev; | |
| 2306 if (!NILP (w->prev)) | |
| 2307 XWINDOW (w->prev)->next = w->next; | |
| 2308 if (EQ (window, par->hchild)) | |
| 2309 par->hchild = w->next; | |
| 2310 if (EQ (window, par->vchild)) | |
| 2311 par->vchild = w->next; | |
| 2312 | |
| 2313 /* Find one of our siblings to give our space to. */ | |
| 2314 { | |
| 2315 Lisp_Object sib = w->prev; | |
| 2316 if (NILP (sib)) | |
| 2317 { | |
| 2318 /* If w gives its space to its next sibling, that sibling needs | |
| 2319 to have its top/left side pulled back to where w's is. | |
| 2320 set_window_{height,width} will re-position the sibling's | |
| 2321 children. */ | |
| 2322 sib = w->next; | |
| 2323 WINDOW_TOP (XWINDOW (sib)) = WINDOW_TOP (w); | |
| 2324 WINDOW_LEFT (XWINDOW (sib)) = WINDOW_LEFT (w); | |
| 2325 } | |
| 2326 | |
| 2327 /* Stretch that sibling. */ | |
| 2328 if (!NILP (par->vchild)) | |
| 2329 set_window_pixheight | |
| 2330 (sib, (WINDOW_HEIGHT (XWINDOW (sib)) + WINDOW_HEIGHT (w)), 1); | |
| 2331 if (!NILP (par->hchild)) | |
| 2332 set_window_pixwidth | |
| 2333 (sib, (WINDOW_WIDTH (XWINDOW (sib)) + WINDOW_WIDTH (w)), 1); | |
| 2334 } | |
| 2335 | |
| 2336 /* If parent now has only one child, | |
| 2337 put the child into the parent's place. */ | |
| 2338 { | |
| 2339 Lisp_Object parchild = par->hchild; | |
| 2340 if (NILP (parchild)) | |
| 2341 parchild = par->vchild; | |
| 2342 if (NILP (XWINDOW (parchild)->next)) | |
| 2343 { | |
| 2344 replace_window (parent, parchild); | |
| 2345 mark_window_as_deleted (XWINDOW (parent)); | |
| 2346 } | |
| 2347 } | |
| 2348 | |
| 2349 /* Since we may be deleting combination windows, we must make sure that | |
| 2350 not only W but all its children have been marked as deleted. */ | |
| 2351 if (!NILP (w->hchild)) | |
| 2352 delete_all_subwindows (XWINDOW (w->hchild)); | |
| 2353 else if (!NILP (w->vchild)) | |
| 2354 delete_all_subwindows (XWINDOW (w->vchild)); | |
| 2355 | |
| 1752 | 2356 /* Warning: mark_window_as_deleted calls window_unmap_subwindows and |
| 2357 therefore redisplay, so it requires the mirror structure to be | |
| 2358 correct. We must dirty the mirror before it is called. */ | |
| 2359 f->mirror_dirty = 1; | |
| 2360 | |
| 428 | 2361 mark_window_as_deleted (w); |
| 2362 | |
| 2363 return Qnil; | |
| 2364 } | |
| 2365 | |
| 2366 | |
| 2367 DEFUN ("next-window", Fnext_window, 0, 4, 0, /* | |
| 442 | 2368 Return the next window after WINDOW in the canonical ordering of windows. |
| 428 | 2369 If omitted, WINDOW defaults to the selected window. |
| 2370 | |
| 2371 Optional second arg MINIBUF t means count the minibuffer window even | |
| 2372 if not active. MINIBUF nil or omitted means count the minibuffer iff | |
| 2373 it is active. MINIBUF neither t nor nil means not to count the | |
| 2374 minibuffer even if it is active. | |
| 2375 | |
| 2376 Several frames may share a single minibuffer; if the minibuffer | |
| 2377 counts, all windows on all frames that share that minibuffer count | |
| 2378 too. Therefore, `next-window' can be used to iterate through the | |
| 2379 set of windows even when the minibuffer is on another frame. If the | |
| 2380 minibuffer does not count, only windows from WINDOW's frame count. | |
| 2381 | |
| 444 | 2382 By default, only the windows in the selected frame are considered. |
| 2383 The optional argument WHICH-FRAMES changes this behavior: | |
| 2384 WHICH-FRAMES = `visible' means search windows on all visible frames. | |
| 448 | 2385 WHICH-FRAMES = 0 means search windows on all visible and iconified frames. |
| 444 | 2386 WHICH-FRAMES = t means search windows on all frames including invisible frames. |
| 2387 WHICH-FRAMES = a frame means search only windows on that frame. | |
| 2388 Anything else means restrict to the selected frame. | |
| 2389 | |
| 2390 The optional fourth argument WHICH-DEVICES further clarifies on which | |
| 2391 devices to search for frames as specified by WHICH-FRAMES. This value | |
| 2392 is only meaningful if WHICH-FRAMES is non-nil. | |
| 2393 If nil or omitted, search all devices on the selected console. | |
| 2394 If a device, only search that device. | |
| 2395 If a console, search all devices on that console. | |
| 2396 If a device type, search all devices of that type. | |
| 2397 If `window-system', search all window-system devices. | |
| 2398 Any other non-nil value means search all devices. | |
| 2399 | |
| 2400 If you use consistent values for MINIBUF, WHICH-FRAMES, and WHICH-DEVICES, | |
| 2401 you can use `next-window' to iterate through the entire cycle of | |
| 2402 acceptable windows, eventually ending up back at the window you started with. | |
| 428 | 2403 `previous-window' traverses the same cycle, in the reverse order. |
| 2404 */ | |
| 444 | 2405 (window, minibuf, which_frames, which_devices)) |
| 428 | 2406 { |
| 2407 Lisp_Object tem; | |
| 2408 Lisp_Object start_window; | |
| 2409 | |
| 2410 if (NILP (window)) | |
| 2411 window = Fselected_window (Qnil); | |
| 2412 else | |
| 2413 CHECK_LIVE_WINDOW (window); | |
| 2414 | |
| 2415 start_window = window; | |
| 2416 | |
| 2417 /* minibuf == nil may or may not include minibuffers. | |
| 2418 Decide if it does. */ | |
| 2419 if (NILP (minibuf)) | |
| 2420 minibuf = (minibuf_level ? minibuf_window : Qlambda); | |
| 2421 else if (! EQ (minibuf, Qt)) | |
| 2422 minibuf = Qlambda; | |
| 442 | 2423 /* Now `minibuf' is one of: |
| 2424 t => count all minibuffer windows | |
| 2425 lambda => count none of them | |
| 428 | 2426 or a specific minibuffer window (the active one) to count. */ |
| 2427 | |
| 444 | 2428 /* which_frames == nil doesn't specify which frames to include. */ |
| 2429 if (NILP (which_frames)) | |
| 2430 which_frames = (! EQ (minibuf, Qlambda) | |
| 428 | 2431 ? (FRAME_MINIBUF_WINDOW |
| 2432 (XFRAME | |
| 2433 (WINDOW_FRAME | |
| 2434 (XWINDOW (window))))) | |
| 2435 : Qnil); | |
| 444 | 2436 else if (EQ (which_frames, Qvisible)) |
| 428 | 2437 ; |
| 444 | 2438 else if (ZEROP (which_frames)) |
| 428 | 2439 ; |
| 444 | 2440 else if (FRAMEP (which_frames) && ! EQ (which_frames, Fwindow_frame (window))) |
| 2441 /* If which_frames is a frame and window arg isn't on that frame, just | |
| 428 | 2442 return the first window on the frame. */ |
| 444 | 2443 return frame_first_window (XFRAME (which_frames)); |
| 2444 else if (! EQ (which_frames, Qt)) | |
| 2445 which_frames = Qnil; | |
| 2446 /* Now `which_frames' is one of: | |
| 442 | 2447 t => search all frames |
| 2448 nil => search just the current frame | |
| 2449 visible => search just visible frames | |
| 2450 0 => search visible and iconified frames | |
| 2451 a window => search the frame that window belongs to. */ | |
| 428 | 2452 |
| 2453 /* Do this loop at least once, to get the next window, and perhaps | |
| 2454 again, if we hit the minibuffer and that is not acceptable. */ | |
| 2455 do | |
| 2456 { | |
| 2457 /* Find a window that actually has a next one. This loop | |
| 2458 climbs up the tree. */ | |
| 2459 while (tem = XWINDOW (window)->next, NILP (tem)) | |
| 2460 if (tem = XWINDOW (window)->parent, !NILP (tem)) | |
| 2461 window = tem; | |
| 2462 else /* window must be minibuffer window now */ | |
| 2463 { | |
| 2464 /* We've reached the end of this frame. | |
| 2465 Which other frames are acceptable? */ | |
| 2466 tem = WINDOW_FRAME (XWINDOW (window)); | |
| 2467 | |
| 444 | 2468 if (! NILP (which_frames)) |
| 428 | 2469 { |
| 442 | 2470 Lisp_Object tem1 = tem; |
| 444 | 2471 tem = next_frame (tem, which_frames, which_devices); |
| 442 | 2472 |
| 428 | 2473 /* In the case where the minibuffer is active, |
| 2474 and we include its frame as well as the selected one, | |
| 2475 next_frame may get stuck in that frame. | |
| 2476 If that happens, go back to the selected frame | |
| 2477 so we can complete the cycle. */ | |
| 2478 if (EQ (tem, tem1)) | |
| 793 | 2479 tem = wrap_frame (selected_frame ()); |
| 428 | 2480 } |
| 2481 | |
| 2482 tem = FRAME_ROOT_WINDOW (XFRAME (tem)); | |
| 2483 break; | |
| 2484 } | |
| 2485 | |
| 2486 window = tem; | |
| 2487 | |
| 2488 /* If we're in a combination window, find its first child and | |
| 2489 recurse on that. Otherwise, we've found the window we want. */ | |
| 2490 while (1) | |
| 2491 { | |
| 2492 if (!NILP (XWINDOW (window)->hchild)) | |
| 2493 window = XWINDOW (window)->hchild; | |
| 2494 else if (!NILP (XWINDOW (window)->vchild)) | |
| 2495 window = XWINDOW (window)->vchild; | |
| 2496 else break; | |
| 2497 } | |
| 2498 } | |
| 2499 /* Which windows are acceptable? | |
| 2500 Exit the loop and accept this window if | |
| 2501 this isn't a minibuffer window, | |
| 2502 or we're accepting all minibuffer windows, | |
| 2503 or this is the active minibuffer and we are accepting that one, or | |
| 2504 we've come all the way around and we're back at the original window. */ | |
| 2505 while (MINI_WINDOW_P (XWINDOW (window)) | |
| 2506 && ! EQ (minibuf, Qt) | |
| 2507 && ! EQ (minibuf, window) | |
| 2508 && ! EQ (window, start_window)); | |
| 2509 | |
| 2510 return window; | |
| 2511 } | |
| 2512 | |
| 2513 DEFUN ("previous-window", Fprevious_window, 0, 4, 0, /* | |
| 442 | 2514 Return the window preceding WINDOW in the canonical ordering of windows. |
| 428 | 2515 If omitted, WINDOW defaults to the selected window. |
| 2516 | |
| 2517 Optional second arg MINIBUF t means count the minibuffer window even | |
| 2518 if not active. MINIBUF nil or omitted means count the minibuffer iff | |
| 2519 it is active. MINIBUF neither t nor nil means not to count the | |
| 2520 minibuffer even if it is active. | |
| 2521 | |
| 2522 Several frames may share a single minibuffer; if the minibuffer | |
| 2523 counts, all windows on all frames that share that minibuffer count | |
| 2524 too. Therefore, `previous-window' can be used to iterate through | |
| 2525 the set of windows even when the minibuffer is on another frame. If | |
| 442 | 2526 the minibuffer does not count, only windows from WINDOW's frame count. |
| 2527 | |
| 444 | 2528 By default, only the windows in the selected frame are considered. |
| 2529 The optional argument WHICH-FRAMES changes this behavior: | |
| 2530 WHICH-FRAMES = `visible' means search windows on all visible frames. | |
| 448 | 2531 WHICH-FRAMES = 0 means search windows on all visible and iconified frames. |
| 444 | 2532 WHICH-FRAMES = t means search windows on all frames including invisible frames. |
| 2533 WHICH-FRAMES = a frame means search only windows on that frame. | |
| 2534 Anything else means restrict to the selected frame. | |
| 2535 | |
| 2536 The optional fourth argument WHICH-DEVICES further clarifies on which | |
| 2537 devices to search for frames as specified by WHICH-FRAMES. This value | |
| 2538 is only meaningful if WHICH-FRAMES is non-nil. | |
| 2539 If nil or omitted, search all devices on the selected console. | |
| 2540 If a device, only search that device. | |
| 2541 If a console, search all devices on that console. | |
| 2542 If a device type, search all devices of that type. | |
| 2543 If `window-system', search all window-system devices. | |
| 2544 Any other non-nil value means search all devices. | |
| 2545 | |
| 2546 If you use consistent values for MINIBUF, WHICH-FRAMES, and WHICH-DEVICES, | |
| 2547 you can use `previous-window' to iterate through the entire cycle of | |
| 2548 acceptable windows, eventually ending up back at the window you started with. | |
| 428 | 2549 `next-window' traverses the same cycle, in the reverse order. |
| 2550 */ | |
| 444 | 2551 (window, minibuf, which_frames, devices)) |
| 428 | 2552 { |
| 2553 Lisp_Object tem; | |
| 2554 Lisp_Object start_window; | |
| 2555 | |
| 2556 if (NILP (window)) | |
| 2557 window = Fselected_window (Qnil); | |
| 2558 else | |
| 2559 CHECK_LIVE_WINDOW (window); | |
| 2560 | |
| 2561 start_window = window; | |
| 2562 | |
| 2563 /* minibuf == nil may or may not include minibuffers. | |
| 2564 Decide if it does. */ | |
| 2565 if (NILP (minibuf)) | |
| 2566 minibuf = (minibuf_level ? minibuf_window : Qlambda); | |
| 2567 else if (! EQ (minibuf, Qt)) | |
| 2568 minibuf = Qlambda; | |
| 442 | 2569 /* Now `minibuf' is one of: |
| 2570 t => count all minibuffer windows | |
| 2571 lambda => count none of them | |
| 428 | 2572 or a specific minibuffer window (the active one) to count. */ |
| 2573 | |
| 444 | 2574 /* which_frames == nil doesn't specify which frames to include. |
| 428 | 2575 Decide which frames it includes. */ |
| 444 | 2576 if (NILP (which_frames)) |
| 2577 which_frames = (! EQ (minibuf, Qlambda) | |
| 428 | 2578 ? (FRAME_MINIBUF_WINDOW |
| 2579 (XFRAME | |
| 2580 (WINDOW_FRAME | |
| 2581 (XWINDOW (window))))) | |
| 2582 : Qnil); | |
| 444 | 2583 else if (EQ (which_frames, Qvisible)) |
| 428 | 2584 ; |
| 444 | 2585 else if (ZEROP (which_frames)) |
| 428 | 2586 ; |
| 444 | 2587 else if (FRAMEP (which_frames) && ! EQ (which_frames, Fwindow_frame (window))) |
| 2588 /* If which_frames is a frame and window arg isn't on that frame, just | |
| 428 | 2589 return the first window on the frame. */ |
| 444 | 2590 return frame_first_window (XFRAME (which_frames)); |
| 2591 else if (! EQ (which_frames, Qt)) | |
| 2592 which_frames = Qnil; | |
| 2593 /* Now `which_frames' is one of: | |
| 442 | 2594 t => search all frames |
| 2595 nil => search just the current frame | |
| 2596 visible => search just visible frames | |
| 2597 0 => search visible and iconified frames | |
| 2598 a window => search the frame that window belongs to. */ | |
| 428 | 2599 |
| 2600 /* Do this loop at least once, to get the next window, and perhaps | |
| 2601 again, if we hit the minibuffer and that is not acceptable. */ | |
| 2602 do | |
| 2603 { | |
| 2604 /* Find a window that actually has a next one. This loop | |
| 2605 climbs up the tree. */ | |
| 2606 while (tem = XWINDOW (window)->prev, NILP (tem)) | |
| 2607 if (tem = XWINDOW (window)->parent, !NILP (tem)) | |
| 2608 window = tem; | |
| 2609 else /* window must be minibuffer window now */ | |
| 2610 { | |
| 2611 /* We have found the top window on the frame. | |
| 2612 Which frames are acceptable? */ | |
| 2613 tem = WINDOW_FRAME (XWINDOW (window)); | |
| 2614 | |
| 444 | 2615 if (! NILP (which_frames)) |
| 442 | 2616 /* It's actually important that we use previous_frame here, |
| 428 | 2617 rather than next_frame. All the windows acceptable |
| 2618 according to the given parameters should form a ring; | |
| 2619 Fnext_window and Fprevious_window should go back and | |
| 2620 forth around the ring. If we use next_frame here, | |
| 2621 then Fnext_window and Fprevious_window take different | |
| 2622 paths through the set of acceptable windows. | |
| 2623 window_loop assumes that these `ring' requirement are | |
| 2624 met. */ | |
| 2625 { | |
| 442 | 2626 Lisp_Object tem1 = tem; |
| 444 | 2627 tem = previous_frame (tem, which_frames, devices); |
| 428 | 2628 /* In the case where the minibuffer is active, |
| 2629 and we include its frame as well as the selected one, | |
| 2630 next_frame may get stuck in that frame. | |
| 2631 If that happens, go back to the selected frame | |
| 2632 so we can complete the cycle. */ | |
| 2633 if (EQ (tem, tem1)) | |
| 793 | 2634 tem = wrap_frame (selected_frame ()); |
| 428 | 2635 } |
| 2636 | |
| 2637 /* If this frame has a minibuffer, find that window first, | |
| 2638 because it is conceptually the last window in that frame. */ | |
| 2639 if (FRAME_HAS_MINIBUF_P (XFRAME (tem))) | |
| 2640 tem = FRAME_MINIBUF_WINDOW (XFRAME (tem)); | |
| 2641 else | |
| 2642 tem = FRAME_ROOT_WINDOW (XFRAME (tem)); | |
| 2643 | |
| 2644 break; | |
| 2645 } | |
| 2646 | |
| 2647 window = tem; | |
| 2648 | |
| 2649 /* If we're in a combination window, find its first child and | |
| 2650 recurse on that. Otherwise, we've found the window we want. */ | |
| 2651 while (1) | |
| 2652 { | |
| 2653 if (!NILP (XWINDOW (window)->hchild)) | |
| 2654 window = XWINDOW (window)->hchild; | |
| 2655 else if (!NILP (XWINDOW (window)->vchild)) | |
| 2656 window = XWINDOW (window)->vchild; | |
| 2657 else break; | |
| 2658 while (tem = XWINDOW (window)->next, !NILP (tem)) | |
| 2659 window = tem; | |
| 2660 } | |
| 2661 } | |
| 2662 /* Which windows are acceptable? | |
| 2663 Exit the loop and accept this window if | |
| 2664 this isn't a minibuffer window, | |
| 2665 or we're accepting all minibuffer windows, | |
| 2666 or this is the active minibuffer and we are accepting that one, or | |
| 2667 we've come all the way around and we're back at the original window. */ | |
| 2668 while (MINI_WINDOW_P (XWINDOW (window)) | |
| 2669 && ! EQ (minibuf, Qt) | |
| 2670 && ! EQ (minibuf, window) | |
| 2671 && ! EQ (window, start_window)); | |
| 2672 | |
| 2673 return window; | |
| 2674 } | |
| 2675 | |
| 2676 DEFUN ("next-vertical-window", Fnext_vertical_window, 0, 1, 0, /* | |
| 2677 Return the next window which is vertically after WINDOW. | |
| 2678 */ | |
| 2679 (window)) | |
| 2680 { | |
| 2681 Lisp_Object root; | |
| 2682 struct window *w = decode_window (window); | |
| 793 | 2683 window = wrap_window (w); |
| 428 | 2684 |
| 2685 if (MINI_WINDOW_P (XWINDOW (window))) | |
| 2686 return Qnil; | |
| 2687 | |
| 2688 root = FRAME_ROOT_WINDOW (XFRAME (WINDOW_FRAME (XWINDOW (window)))); | |
| 2689 | |
| 2690 if (EQ (window, root)) | |
| 2691 { | |
| 2692 while (1) | |
| 2693 if (!NILP (XWINDOW (window)->hchild)) | |
| 2694 window = XWINDOW (window)->hchild; | |
| 2695 else if (!NILP (XWINDOW (window)->vchild)) | |
| 2696 window = XWINDOW (window)->vchild; | |
| 2697 else | |
| 2698 return window; | |
| 2699 } | |
| 2700 | |
| 2701 do | |
| 2702 { | |
| 2703 if (!NILP (XWINDOW (window)->parent) && | |
| 2704 !NILP (XWINDOW (XWINDOW (window)->parent)->vchild)) | |
| 2705 { | |
| 2706 if (!NILP (XWINDOW (window)->next)) | |
| 2707 return XWINDOW (window)->next; | |
| 2708 else | |
| 2709 window = XWINDOW (window)->parent; | |
| 2710 } | |
| 2711 else | |
| 2712 window = XWINDOW (window)->parent; | |
| 2713 } | |
| 2714 while (!EQ (window, root)); | |
| 2715 | |
| 2716 while (1) | |
| 2717 if (!NILP (XWINDOW (window)->hchild)) | |
| 2718 window = XWINDOW (window)->hchild; | |
| 2719 else if (!NILP (XWINDOW (window)->vchild)) | |
| 2720 window = XWINDOW (window)->vchild; | |
| 2721 else | |
| 2722 return window; | |
| 2723 } | |
| 2724 | |
| 2725 DEFUN ("other-window", Fother_window, 1, 3, "p", /* | |
| 444 | 2726 Select the COUNT'th different window on this frame. |
| 428 | 2727 All windows on current frame are arranged in a cyclic order. |
| 444 | 2728 This command selects the window COUNT steps away in that order. |
| 2729 A negative COUNT moves in the opposite order. | |
| 2730 | |
| 2731 By default, only the windows in the selected frame are considered. | |
| 2732 The optional argument WHICH-FRAMES changes this behavior: | |
| 2733 WHICH-FRAMES = `visible' means search windows on all visible frames. | |
| 448 | 2734 WHICH-FRAMES = 0 means search windows on all visible and iconified frames. |
| 444 | 2735 WHICH-FRAMES = t means search windows on all frames including invisible frames. |
| 2736 WHICH-FRAMES = a frame means search only windows on that frame. | |
| 2737 Anything else means restrict to the selected frame. | |
| 2738 | |
| 2739 The optional argument WHICH-DEVICES further clarifies on which devices | |
| 2740 to search for frames as specified by WHICH-FRAMES. This value is only | |
| 2741 meaningful if WHICH-FRAMES is non-nil. | |
| 2742 If nil or omitted, search all devices on the selected console. | |
| 2743 If a device, only search that device. | |
| 2744 If a console, search all devices on that console. | |
| 2745 If a device type, search all devices of that type. | |
| 2746 If `window-system', search all window-system devices. | |
| 2747 Any other non-nil value means search all devices. | |
| 428 | 2748 */ |
| 444 | 2749 (count, which_frames, which_devices)) |
| 428 | 2750 { |
| 2751 int i; | |
| 2752 Lisp_Object w; | |
| 2753 | |
| 444 | 2754 CHECK_INT (count); |
| 428 | 2755 w = Fselected_window (Qnil); |
| 444 | 2756 i = XINT (count); |
| 428 | 2757 |
| 2758 while (i > 0) | |
| 2759 { | |
| 444 | 2760 w = Fnext_window (w, Qnil, which_frames, which_devices); |
| 428 | 2761 i--; |
| 2762 } | |
| 2763 while (i < 0) | |
| 2764 { | |
| 444 | 2765 w = Fprevious_window (w, Qnil, which_frames, which_devices); |
| 428 | 2766 i++; |
| 2767 } | |
| 2768 Fselect_window (w, Qnil); | |
| 2769 return Qnil; | |
| 2770 } | |
| 2771 | |
| 2772 | |
| 2773 /* Look at all windows, performing an operation specified by TYPE | |
| 2774 with argument OBJ. | |
| 2775 | |
| 2776 If FRAMES is Qt, look at all frames, if Qnil, look at just the selected | |
| 2777 frame. If FRAMES is a frame, just look at windows on that frame. | |
| 2778 If MINI is non-zero, perform the operation on minibuffer windows too. | |
| 2779 */ | |
| 2780 | |
| 2781 enum window_loop | |
| 2782 { | |
| 2783 WINDOW_LOOP_UNUSED, | |
| 2784 GET_BUFFER_WINDOW, /* Arg is buffer */ | |
| 2785 GET_LRU_WINDOW, /* Arg is t for full-width windows only */ | |
| 2786 DELETE_OTHER_WINDOWS, /* Arg is window not to delete */ | |
| 2787 DELETE_BUFFER_WINDOWS, /* Arg is buffer */ | |
| 2788 GET_LARGEST_WINDOW, | |
| 2789 GET_BUFFER_WINDOW_COUNT, /* Arg is buffer */ | |
| 2790 GET_BUFFER_MRU_WINDOW /* Arg is buffer */ | |
| 2791 }; | |
| 2792 | |
| 2793 static Lisp_Object | |
| 2794 window_loop (enum window_loop type, | |
| 2795 Lisp_Object obj, | |
| 2796 int mini, | |
| 444 | 2797 Lisp_Object which_frames, |
| 428 | 2798 int dedicated_too, |
| 444 | 2799 Lisp_Object which_devices) |
| 428 | 2800 { |
| 448 | 2801 /* This function can GC if type == DELETE_BUFFER_WINDOWS */ |
| 428 | 2802 Lisp_Object w; |
| 2803 Lisp_Object best_window = Qnil; | |
| 2804 Lisp_Object next_window; | |
| 2805 Lisp_Object last_window; | |
| 2806 struct frame *frame; | |
| 2807 Lisp_Object frame_arg = Qt; | |
| 2808 int count = 0; /* for GET_BUFFER_WINDOW_COUNT */ | |
| 2809 /* #### I think the change of "precomputing" last_window and next_window | |
| 2810 * #### catch the lossage this is meant(?) to punt on... | |
| 2811 */ | |
| 2812 int lose_lose = 0; | |
| 2813 Lisp_Object devcons, concons; | |
| 2814 | |
| 2815 /* If we're only looping through windows on a particular frame, | |
| 2816 FRAME points to that frame. If we're looping through windows | |
| 2817 on all frames, FRAME is 0. */ | |
| 444 | 2818 if (FRAMEP (which_frames)) |
| 2819 frame = XFRAME (which_frames); | |
| 2820 else if (NILP (which_frames)) | |
| 428 | 2821 frame = selected_frame (); |
| 2822 else | |
| 2823 frame = 0; | |
| 442 | 2824 |
| 2825 /* FRAME_ARG is Qlambda to stick to one frame, | |
| 2826 Qvisible to consider all visible frames, | |
| 2827 or Qt otherwise. */ | |
| 428 | 2828 if (frame) |
| 2829 frame_arg = Qlambda; | |
| 444 | 2830 else if (ZEROP (which_frames)) |
| 2831 frame_arg = which_frames; | |
| 2832 else if (EQ (which_frames, Qvisible)) | |
| 2833 frame_arg = which_frames; | |
| 428 | 2834 |
| 2835 DEVICE_LOOP_NO_BREAK (devcons, concons) | |
| 2836 { | |
| 2837 Lisp_Object device = XCAR (devcons); | |
| 2838 Lisp_Object the_frame; | |
| 2839 | |
| 2840 if (frame) | |
| 793 | 2841 the_frame = wrap_frame (frame); |
| 428 | 2842 else |
| 2843 the_frame = DEVICE_SELECTED_FRAME (XDEVICE (device)); | |
| 2844 | |
| 2845 if (NILP (the_frame)) | |
| 2846 continue; | |
| 2847 | |
| 444 | 2848 if (!device_matches_device_spec (device, |
| 2849 NILP (which_devices) ? | |
| 2850 FRAME_CONSOLE (XFRAME (the_frame)) : | |
| 2851 which_devices)) | |
| 428 | 2852 continue; |
| 2853 | |
| 2854 /* Pick a window to start with. */ | |
| 2855 if (WINDOWP (obj)) | |
| 2856 w = obj; | |
| 2857 else | |
| 2858 w = FRAME_SELECTED_WINDOW (XFRAME (the_frame)); | |
| 2859 | |
| 2860 /* Figure out the last window we're going to mess with. Since | |
| 2861 Fnext_window, given the same options, is guaranteed to go in a | |
| 2862 ring, we can just use Fprevious_window to find the last one. | |
| 2863 | |
| 2864 We can't just wait until we hit the first window again, | |
| 2865 because it might be deleted. */ | |
| 2866 | |
| 707 | 2867 last_window = Fprevious_window (w, mini ? Qt : Qnil, frame_arg, device); |
| 428 | 2868 |
| 2869 best_window = Qnil; | |
| 2870 for (;;) | |
| 2871 { | |
| 2872 struct window *p = XWINDOW (w); | |
| 2873 | |
| 2874 /* Pick the next window now, since some operations will delete | |
| 2875 the current window. */ | |
| 442 | 2876 next_window = Fnext_window (w, mini ? Qt : Qnil, frame_arg, device); |
| 428 | 2877 |
| 2878 /* #### Still needed ?? */ | |
| 2879 /* Given the outstanding quality of the rest of this code, | |
| 2880 I feel no shame about putting this piece of shit in. */ | |
| 2881 if (++lose_lose >= 500) | |
| 707 | 2882 { |
| 2500 | 2883 /* Call to ABORT() added by Darryl Okahata (16 Nov. 2001), |
| 707 | 2884 at Ben's request, to catch any remaining bugs. |
| 2885 | |
| 2886 If you find that XEmacs is aborting here, and you | |
| 2887 need to be up and running ASAP, it should be safe to | |
| 2500 | 2888 comment out the following ABORT(), as long as you |
| 707 | 2889 leave the "break;" alone. */ |
| 2500 | 2890 ABORT(); |
| 707 | 2891 break; /* <--- KEEP THIS HERE! Do not delete! */ |
| 2892 } | |
| 428 | 2893 |
| 2894 /* Note that we do not pay attention here to whether | |
| 2895 the frame is visible, since Fnext_window skips non-visible frames | |
| 2896 if that is desired, under the control of frame_arg. */ | |
| 2897 if (! MINI_WINDOW_P (p) | |
| 2898 || (mini && minibuf_level > 0)) | |
| 2899 switch (type) | |
| 2900 { | |
| 2901 case GET_BUFFER_WINDOW: | |
| 2902 { | |
| 2903 if (XBUFFER (p->buffer) == XBUFFER (obj)) | |
| 2904 return w; | |
| 2905 break; | |
| 2906 } | |
| 2907 | |
| 2908 case GET_BUFFER_WINDOW_COUNT: | |
| 2909 { | |
| 2910 if (XBUFFER (p->buffer) == XBUFFER (obj)) | |
| 2911 count++; | |
| 2912 break; | |
| 2913 } | |
| 2914 | |
| 2915 case GET_LRU_WINDOW: | |
| 2916 { | |
| 2917 /* t as arg means consider only full-width windows */ | |
| 2918 if (!NILP (obj) | |
| 2919 && !window_full_width_p (p)) | |
| 2920 break; | |
| 2921 /* Ignore dedicated windows and minibuffers. */ | |
| 2922 if (MINI_WINDOW_P (p) | |
| 2923 || (dedicated_too ? 0 : !NILP (p->dedicated))) | |
| 2924 break; | |
| 2925 if (NILP (best_window) | |
| 2926 || (XINT (XWINDOW (best_window)->use_time) | |
| 2927 > XINT (p->use_time))) | |
| 2928 best_window = w; | |
| 2929 break; | |
| 2930 } | |
| 2931 | |
| 2932 case GET_BUFFER_MRU_WINDOW: | |
| 2933 { | |
| 2934 /* #### what about the first check in GET_LRU_WINDOW? */ | |
| 2935 /* Ignore dedicated windows and minibuffers. */ | |
| 2936 if (MINI_WINDOW_P (p) | |
| 2937 || (dedicated_too ? 0 : !NILP (p->dedicated))) | |
| 2938 break; | |
| 2939 | |
| 2940 if (XBUFFER (p->buffer) == XBUFFER (obj)) | |
| 2941 { | |
| 2942 if (NILP (best_window) | |
| 2943 || (XINT (XWINDOW (best_window)->use_time) | |
| 2944 < XINT (p->use_time))) | |
| 2945 best_window = w; | |
| 2946 } | |
| 2947 break; | |
| 2948 } | |
| 2949 | |
| 2950 case DELETE_OTHER_WINDOWS: | |
| 2951 { | |
| 2952 /* Don't delete the last window on a frame; this can | |
| 2953 happen when the minibuffer is selected, and would | |
| 2954 cause the frame to be deleted. */ | |
| 2955 if (p != XWINDOW (obj) && !TOP_LEVEL_WINDOW_P (XWINDOW (w))) | |
| 2956 Fdelete_window (w, Qnil); | |
| 2957 break; | |
| 2958 } | |
| 2959 | |
| 2960 case DELETE_BUFFER_WINDOWS: | |
| 2961 { | |
| 2962 if (EQ (p->buffer, obj)) | |
| 2963 { | |
| 2964 struct frame *f = XFRAME (WINDOW_FRAME (p)); | |
| 2965 | |
| 2966 /* If this window is dedicated, and in a frame | |
| 2967 of its own, kill the frame. */ | |
| 2968 if (EQ (w, FRAME_ROOT_WINDOW (f)) | |
| 2969 && !NILP (p->dedicated) | |
| 1979 | 2970 && (allow_deletion_of_last_visible_frame |
| 2971 || other_visible_frames (f))) | |
| 428 | 2972 { |
| 2973 /* Skip the other windows on this frame. | |
| 2974 There might be one, the minibuffer! */ | |
| 2975 if (! EQ (w, last_window)) | |
| 2976 while (f == XFRAME (WINDOW_FRAME | |
| 2977 (XWINDOW (next_window)))) | |
| 2978 { | |
| 2979 /* As we go, check for the end of the | |
| 2980 loop. We mustn't start going | |
| 2981 around a second time. */ | |
| 2982 if (EQ (next_window, last_window)) | |
| 2983 { | |
| 2984 last_window = w; | |
| 2985 break; | |
| 2986 } | |
| 2987 next_window = Fnext_window (next_window, | |
| 2988 mini ? Qt : Qnil, | |
| 2989 frame_arg, Qt); | |
| 2990 } | |
| 2991 /* Now we can safely delete the frame. */ | |
| 2992 Fdelete_frame (WINDOW_FRAME (p), Qnil); | |
| 2993 } | |
| 2994 else | |
| 2995 /* If we're deleting the buffer displayed in | |
| 2996 the only window on the frame, find a new | |
| 2997 buffer to display there. */ | |
| 2998 if (NILP (p->parent)) | |
| 2999 { | |
| 3000 Lisp_Object new_buffer; | |
| 3001 new_buffer = Fother_buffer (obj, Qnil, Qnil); | |
| 3002 if (NILP (new_buffer)) | |
| 3003 new_buffer = Fget_buffer_create (QSscratch); | |
| 440 | 3004 Fset_window_buffer (w, new_buffer, Qnil); |
| 428 | 3005 if (EQ (w, Fselected_window (Qnil))) |
| 3006 Fset_buffer (p->buffer); | |
| 3007 } | |
| 3008 else | |
| 3009 Fdelete_window (w, Qnil); | |
| 3010 } | |
| 3011 break; | |
| 3012 } | |
| 3013 | |
| 3014 case GET_LARGEST_WINDOW: | |
| 3015 { | |
| 3016 /* Ignore dedicated windows and minibuffers. */ | |
| 3017 if (MINI_WINDOW_P (p) | |
| 3018 || (dedicated_too ? 0 : !NILP (p->dedicated))) | |
| 3019 break; | |
| 3020 { | |
| 3021 /* write the check as follows to avoid tripping | |
| 3022 error_check_window() --ben */ | |
| 3023 struct window *b = NILP (best_window) ? 0 : | |
| 3024 XWINDOW (best_window); | |
| 3025 if (NILP (best_window) | |
| 3026 || ((WINDOW_HEIGHT (p) * WINDOW_WIDTH (p)) | |
| 3027 > (WINDOW_HEIGHT (b) * WINDOW_WIDTH (b)))) | |
| 3028 best_window = w; | |
| 3029 } | |
| 3030 break; | |
| 3031 } | |
| 3032 | |
| 3033 default: | |
| 2500 | 3034 ABORT (); |
| 428 | 3035 } |
| 3036 | |
| 3037 if (EQ (w, last_window)) | |
| 3038 break; | |
| 3039 | |
| 3040 w = next_window; | |
| 3041 } | |
| 3042 } | |
| 3043 | |
| 3044 return type == GET_BUFFER_WINDOW_COUNT ? make_int (count) : best_window; | |
| 3045 } | |
| 3046 | |
| 3047 #if 0 /* not currently used */ | |
| 3048 | |
| 3049 int | |
| 3050 buffer_window_count (struct buffer *b, struct frame *f) | |
| 3051 { | |
| 3052 Lisp_Object buffer, frame; | |
| 3053 | |
| 793 | 3054 frame = wrap_frame (f); |
| 3055 buffer = wrap_buffer (b); | |
| 428 | 3056 |
| 3057 return XINT (window_loop (GET_BUFFER_WINDOW_COUNT, buffer, 0, frame, 1, | |
| 3058 Qnil)); | |
| 3059 } | |
| 3060 | |
| 3061 int | |
| 3062 buffer_window_mru (struct window *w) | |
| 3063 { | |
| 3064 Lisp_Object window = | |
| 3065 window_loop (GET_BUFFER_MRU_WINDOW, w->buffer, 0, w->frame, 1, Qnil); | |
| 3066 | |
| 3067 if (NILP (window)) | |
| 3068 return 0; | |
| 3069 else if (XWINDOW (window) == w) | |
| 3070 return 1; | |
| 3071 else | |
| 3072 return 0; | |
| 3073 } | |
| 3074 | |
| 3075 #endif | |
| 3076 | |
| 3077 | |
| 3078 DEFUN ("get-lru-window", Fget_lru_window, 0, 2, 0, /* | |
| 3079 Return the window least recently selected or used for display. | |
| 444 | 3080 |
| 3081 By default, only the windows in the selected frame are considered. | |
| 3082 The optional argument WHICH-FRAMES changes this behavior: | |
| 3083 If optional argument WHICH-FRAMES is `visible', search all visible frames. | |
| 3084 If WHICH-FRAMES is 0, search all visible and iconified frames. | |
| 3085 If WHICH-FRAMES is t, search all frames. | |
| 3086 If WHICH-FRAMES is nil, search only the selected frame. | |
| 3087 If WHICH-FRAMES is a frame, search only that frame. | |
| 3088 | |
| 3089 The optional argument WHICH-DEVICES further clarifies on which devices | |
| 3090 to search for frames as specified by WHICH-FRAMES. This value is only | |
| 3091 meaningful if WHICH-FRAMES is non-nil. | |
| 3092 If nil or omitted, search all devices on the selected console. | |
| 3093 If a device, only search that device. | |
| 3094 If a console, search all devices on that console. | |
| 3095 If a device type, search all devices of that type. | |
| 3096 If `window-system', search all devices on window-system consoles. | |
| 3097 Any other non-nil value means search all devices. | |
| 428 | 3098 */ |
| 444 | 3099 (which_frames, which_devices)) |
| 428 | 3100 { |
| 3101 Lisp_Object w; | |
| 3102 /* First try for a non-dedicated window that is full-width */ | |
| 444 | 3103 w = window_loop (GET_LRU_WINDOW, Qt, 0, which_frames, 0, which_devices); |
| 428 | 3104 if (!NILP (w) && !EQ (w, Fselected_window (Qnil))) |
| 3105 return w; | |
| 3106 | |
| 3107 /* Then try for any non-dedicated window */ | |
| 444 | 3108 w = window_loop (GET_LRU_WINDOW, Qnil, 0, which_frames, 0, which_devices); |
| 428 | 3109 if (!NILP (w) && !EQ (w, Fselected_window (Qnil))) |
| 3110 return w; | |
| 3111 | |
| 3112 #if 0 | |
| 3113 /* FSFmacs never returns a dedicated window here. If we do, | |
| 3114 it makes `display-buffer' not work right. #### All of this | |
| 3115 shit is so disgusting and awful that it needs to be rethought | |
| 3116 from scratch. */ | |
| 3117 /* then try for a dedicated window that is full-width */ | |
| 444 | 3118 w = window_loop (GET_LRU_WINDOW, Qt, 0, which_frames, 1, which_devices); |
| 428 | 3119 if (!NILP (w) && !EQ (w, Fselected_window (Qnil))) |
| 3120 return w; | |
| 3121 | |
| 3122 /* If none of them, then all windows, dedicated or not. */ | |
| 444 | 3123 w = window_loop (GET_LRU_WINDOW, Qnil, 0, which_frames, 1, which_devices); |
| 428 | 3124 |
| 3125 /* At this point we damn well better have found something. */ | |
|
5050
6f2158fa75ed
Fix quick-build, use asserts() in place of ABORT()
Ben Wing <ben@xemacs.org>
parents:
4967
diff
changeset
|
3126 assert (!NILP (w)); |
| 428 | 3127 #endif |
| 3128 | |
| 3129 return w; | |
| 3130 } | |
| 3131 | |
| 3132 DEFUN ("get-largest-window", Fget_largest_window, 0, 2, 0, /* | |
| 3133 Return the window largest in area. | |
| 444 | 3134 |
| 3135 By default, only the windows in the selected frame are considered. | |
| 3136 The optional argument WHICH-FRAMES changes this behavior: | |
| 3137 If optional argument WHICH-FRAMES is `visible', search all visible frames. | |
| 3138 If WHICH-FRAMES is 0, search all visible and iconified frames. | |
| 3139 If WHICH-FRAMES is t, search all frames. | |
| 3140 If WHICH-FRAMES is nil, search only the selected frame. | |
| 3141 If WHICH-FRAMES is a frame, search only that frame. | |
| 3142 | |
| 3143 The optional argument WHICH-DEVICES further clarifies on which devices | |
| 3144 to search for frames as specified by WHICH-FRAMES. This value is only | |
| 3145 meaningful if WHICH-FRAMES is non-nil. | |
| 3146 If nil or omitted, search all devices on the selected console. | |
| 3147 If a device, only search that device. | |
| 3148 If a console, search all devices on that console. | |
| 3149 If a device type, search all devices of that type. | |
| 3150 If `window-system', search all devices on window-system consoles. | |
| 3151 Any other non-nil value means search all devices. | |
| 428 | 3152 */ |
| 444 | 3153 (which_frames, which_devices)) |
| 428 | 3154 { |
| 3155 /* Don't search dedicated windows because FSFmacs doesn't. | |
| 3156 This stuff is all black magic so don't try to apply common | |
| 3157 sense to it. */ | |
| 444 | 3158 return window_loop (GET_LARGEST_WINDOW, Qnil, 0, |
| 3159 which_frames, 0, which_devices); | |
| 428 | 3160 } |
| 3161 | |
| 3162 DEFUN ("get-buffer-window", Fget_buffer_window, 1, 3, 0, /* | |
| 3163 Return a window currently displaying BUFFER, or nil if none. | |
| 444 | 3164 |
| 3165 By default, only the windows in the selected frame are considered. | |
| 3166 The optional argument WHICH-FRAMES changes this behavior: | |
| 3167 If optional argument WHICH-FRAMES is `visible', search all visible frames. | |
| 3168 If WHICH-FRAMES is 0, search all visible and iconified frames. | |
| 3169 If WHICH-FRAMES is t, search all frames. | |
| 3170 If WHICH-FRAMES is nil, search only the selected frame. | |
| 3171 If WHICH-FRAMES is a frame, search only that frame. | |
| 3172 | |
| 3173 The optional argument WHICH-DEVICES further clarifies on which devices | |
| 3174 to search for frames as specified by WHICH-FRAMES. This value is only | |
| 3175 meaningful if WHICH-FRAMES is non-nil. | |
| 3176 If nil or omitted, search all devices on the selected console. | |
| 3177 If a device, only search that device. | |
| 3178 If a console, search all devices on that console. | |
| 3179 If a device type, search all devices of that type. | |
| 3180 If `window-system', search all devices on window-system consoles. | |
| 3181 Any other non-nil value means search all devices. | |
| 428 | 3182 */ |
| 444 | 3183 (buffer, which_frames, which_devices)) |
| 428 | 3184 { |
| 3185 buffer = Fget_buffer (buffer); | |
| 3186 if (BUFFERP (buffer)) | |
| 3187 /* Search dedicated windows too. (Doesn't matter here anyway.) */ | |
| 444 | 3188 return window_loop (GET_BUFFER_WINDOW, buffer, 1, |
| 3189 which_frames, 1, which_devices); | |
| 428 | 3190 else |
| 3191 return Qnil; | |
| 3192 } | |
| 3193 | |
| 3194 /* These functions used to be `buffer-left-margin-pixel-width', etc. | |
| 3195 but there is no sensible way to implement those functions, since | |
| 3196 you can't in general derive a window from a buffer. */ | |
| 3197 | |
| 3198 DEFUN ("window-left-margin-pixel-width", Fwindow_left_margin_pixel_width, | |
| 3199 0, 1, 0, /* | |
| 3200 Return the width in pixels of the left outside margin of window WINDOW. | |
| 3201 If WINDOW is nil, the selected window is assumed. | |
| 3202 */ | |
| 3203 (window)) | |
| 3204 { | |
| 3205 return make_int (window_left_margin_width (decode_window (window))); | |
| 3206 } | |
| 3207 | |
| 3208 DEFUN ("window-right-margin-pixel-width", Fwindow_right_margin_pixel_width, | |
| 3209 0, 1, 0, /* | |
| 3210 Return the width in pixels of the right outside margin of window WINDOW. | |
| 3211 If WINDOW is nil, the selected window is assumed. | |
| 3212 */ | |
| 3213 (window)) | |
| 3214 { | |
| 3215 return make_int (window_right_margin_width (decode_window (window))); | |
| 3216 } | |
| 3217 | |
| 3218 DEFUN ("delete-other-windows", Fdelete_other_windows, 0, 1, "", /* | |
| 3219 Make WINDOW (or the selected window) fill its frame. | |
| 3220 Only the frame WINDOW is on is affected. | |
| 3221 This function tries to reduce display jumps | |
| 3222 by keeping the text previously visible in WINDOW | |
| 3223 in the same place on the frame. Doing this depends on | |
| 3224 the value of (window-start WINDOW), so if calling this function | |
| 3225 in a program gives strange scrolling, make sure the window-start | |
| 3226 value is reasonable when this function is called. | |
| 3227 */ | |
| 3228 (window)) | |
| 3229 { | |
| 3230 struct window *w = decode_window (window); | |
| 1207 | 3231 struct buffer *b; |
| 665 | 3232 Charbpos start_pos; |
| 428 | 3233 int old_top = WINDOW_TOP (w); |
| 3234 | |
| 1207 | 3235 if (NILP (WINDOW_BUFFER (w))) |
| 3236 invalid_operation ("Can't delete other windows of combination", window); | |
| 3237 | |
| 793 | 3238 window = wrap_window (w); |
| 1207 | 3239 b = XBUFFER (WINDOW_BUFFER (w)); |
| 428 | 3240 |
| 3241 if (MINI_WINDOW_P (w) && old_top > 0) | |
| 563 | 3242 invalid_operation ("Can't expand minibuffer to full frame", Qunbound); |
| 428 | 3243 |
| 3244 /* Ignore dedicated windows. */ | |
| 3245 window_loop (DELETE_OTHER_WINDOWS, window, 0, w->frame, 0, Qnil); | |
| 3246 | |
| 3247 start_pos = marker_position (w->start[CURRENT_DISP]); | |
| 3248 | |
| 3249 /* Try to minimize scrolling, by setting the window start to the | |
| 3250 point which will cause the text at the old window start to be at | |
| 3251 the same place on the frame. But don't try to do this if the | |
| 3252 window start is outside the visible portion (as might happen when | |
| 3253 the display is not current, due to typeahead). */ | |
| 3254 if (start_pos >= BUF_BEGV (b) && start_pos <= BUF_ZV (b) | |
| 3255 && !MINI_WINDOW_P (w)) | |
| 3256 { | |
| 665 | 3257 Charbpos new_start = start_with_line_at_pixpos (w, start_pos, old_top); |
| 428 | 3258 |
| 3259 if (new_start >= BUF_BEGV (b) && new_start <= BUF_ZV (b)) | |
| 3260 { | |
| 3261 Fset_marker (w->start[CURRENT_DISP], make_int (new_start), | |
| 3262 w->buffer); | |
| 3263 w->start_at_line_beg = beginning_of_line_p (b, new_start); | |
| 3264 } | |
| 3265 /* We need to do this, so that the window-scroll-functions | |
| 3266 get called. */ | |
| 3267 w->force_start = 1; | |
| 3268 } | |
| 3269 | |
| 3270 return Qnil; | |
| 3271 } | |
| 3272 | |
| 3273 DEFUN ("delete-windows-on", Fdelete_windows_on, 1, 3, | |
| 3274 "bDelete windows on (buffer): ", /* | |
| 3275 Delete all windows showing BUFFER. | |
| 444 | 3276 |
| 3277 Optional second argument WHICH-FRAMES controls which frames are affected. | |
| 428 | 3278 If nil or omitted, delete all windows showing BUFFER in any frame. |
| 3279 If t, delete only windows showing BUFFER in the selected frame. | |
| 3280 If `visible', delete all windows showing BUFFER in any visible frame. | |
| 3281 If a frame, delete only windows showing BUFFER in that frame. | |
| 444 | 3282 Warning: WHICH-FRAMES has the same meaning as with `next-window', |
| 3283 except that the meanings of nil and t are reversed. | |
| 3284 | |
| 3285 The optional third argument WHICH-DEVICES further clarifies on which | |
| 3286 devices to search for frames as specified by WHICH-FRAMES. This value | |
| 3287 is only meaningful if WHICH-FRAMES is not t. | |
| 3288 If nil or omitted, search only the selected console. | |
| 3289 If a device, only search that device. | |
| 3290 If a console, search all devices on that console. | |
| 3291 If a device type, search all devices of that type. | |
| 3292 If `window-system', search all devices on a window system. | |
| 3293 Any other non-nil value means search all devices. | |
| 428 | 3294 */ |
| 444 | 3295 (buffer, which_frames, which_devices)) |
| 428 | 3296 { |
| 3297 /* This function can GC */ | |
| 444 | 3298 buffer = Fget_buffer (buffer); |
| 3299 CHECK_BUFFER (buffer); | |
| 3300 | |
| 3301 /* WHICH-FRAMES values t and nil mean the opposite of what | |
| 3302 window_loop expects. */ | |
| 3303 if (EQ (which_frames, Qnil)) | |
| 3304 which_frames = Qt; | |
| 3305 else if (EQ (which_frames, Qt)) | |
| 3306 which_frames = Qnil; | |
| 3307 | |
| 3308 /* Ignore dedicated windows. */ | |
| 3309 window_loop (DELETE_BUFFER_WINDOWS, buffer, 0, | |
| 3310 which_frames, 0, which_devices); | |
| 428 | 3311 return Qnil; |
| 3312 } | |
| 3313 | |
| 448 | 3314 static Lisp_Object |
| 3315 list_windows (struct window *w, Lisp_Object value) | |
| 3316 { | |
| 3317 for (;;) | |
| 3318 { | |
| 3319 if (!NILP (w->hchild)) | |
| 3320 value = list_windows (XWINDOW (w->hchild), value); | |
| 3321 else if (!NILP (w->vchild)) | |
| 3322 value = list_windows (XWINDOW (w->vchild), value); | |
| 3323 else | |
| 3324 { | |
| 793 | 3325 Lisp_Object window = wrap_window (w); |
| 3326 | |
| 448 | 3327 value = Fcons (window, value); |
| 3328 } | |
| 3329 if (NILP (w->next)) | |
| 3330 break; | |
| 3331 w = XWINDOW (w->next); | |
| 3332 } | |
| 3333 return value; | |
| 3334 } | |
| 3335 | |
| 3336 static Lisp_Object | |
| 3337 list_all_windows (Lisp_Object frame_spec, Lisp_Object device_spec) | |
| 3338 { | |
| 3339 Lisp_Object devcons, concons; | |
| 3340 Lisp_Object retval = Qnil; | |
| 3341 | |
| 3342 DEVICE_LOOP_NO_BREAK (devcons, concons) | |
| 3343 { | |
| 3344 Lisp_Object frame_list, the_window; | |
| 3345 Lisp_Object device, tail; | |
| 3346 | |
| 3347 device = XCAR (devcons); | |
| 3348 frame_list = DEVICE_FRAME_LIST (XDEVICE (device)); | |
| 3349 | |
| 3350 LIST_LOOP (tail, frame_list) | |
| 3351 { | |
| 3352 if ((NILP (frame_spec) | |
| 3353 && !EQ (XCAR (tail), DEVICE_SELECTED_FRAME (XDEVICE (device)))) | |
| 3354 || (EQ (frame_spec, Qvisible) | |
| 3355 && !FRAME_VISIBLE_P (XFRAME (XCAR (tail)))) | |
| 3356 || (FRAMEP (frame_spec) | |
| 3357 && !EQ (frame_spec, XCAR (tail))) | |
| 3358 || (!NILP (frame_spec) | |
| 3359 && !device_matches_device_spec (device, | |
| 3360 NILP (device_spec) ? | |
| 3361 Vselected_console : | |
| 3362 device_spec))) | |
| 3363 continue; | |
| 3364 the_window = FRAME_ROOT_WINDOW (XFRAME (XCAR (tail))); | |
| 3365 retval = list_windows (XWINDOW (the_window), retval); | |
| 3366 } | |
| 3367 } | |
| 3368 return Fnreverse (retval); | |
| 3369 } | |
| 3370 | |
| 444 | 3371 DEFUN ("replace-buffer-in-windows", Freplace_buffer_in_windows, 1, 3, |
| 428 | 3372 "bReplace buffer in windows: ", /* |
| 3373 Replace BUFFER with some other buffer in all windows showing it. | |
| 444 | 3374 |
| 3375 Optional second argument WHICH-FRAMES controls which frames are affected. | |
| 3376 If nil or omitted, all frames are affected. | |
| 3377 If t, only the selected frame is affected. | |
| 3378 If `visible', all visible frames are affected. | |
| 3379 If a frame, only that frame is affected. | |
| 3380 Warning: WHICH-FRAMES has the same meaning as with `next-window', | |
| 3381 except that the meanings of nil and t are reversed. | |
| 3382 | |
| 3383 The optional third argument WHICH-DEVICES further clarifies on which | |
| 3384 devices to search for frames as specified by WHICH-FRAMES. This value | |
| 3385 is only meaningful if WHICH-FRAMES is not t. | |
| 3386 If nil or omitted, search only the selected console. | |
| 3387 If a device, only search that device. | |
| 3388 If a console, search all devices on that console. | |
| 3389 If a device type, search all devices of that type. | |
| 3390 If `window-system', search all devices on a window system. | |
| 3391 Any other non-nil value means search all devices. | |
| 428 | 3392 */ |
| 444 | 3393 (buffer, which_frames, which_devices)) |
| 428 | 3394 { |
| 3395 /* This function can GC */ | |
| 448 | 3396 Lisp_Object window_list; |
| 3397 Lisp_Object tail; | |
| 3398 struct gcpro gcpro1, gcpro2; | |
| 3399 | |
| 444 | 3400 if (EQ (which_frames, Qnil)) |
| 3401 which_frames = Qt; | |
| 3402 else if (EQ (which_frames, Qt)) | |
| 3403 which_frames = Qnil; | |
| 448 | 3404 window_list = list_all_windows (which_frames, which_devices); |
| 3405 | |
| 3406 buffer = Fget_buffer (buffer); | |
| 3407 CHECK_BUFFER (buffer); | |
| 3408 | |
| 3409 GCPRO2 (window_list, buffer); | |
| 3410 LIST_LOOP (tail, window_list) | |
| 3411 { | |
| 3412 Lisp_Object window = XCAR (tail); | |
| 3413 if (!MINI_WINDOW_P (XWINDOW (window)) | |
| 3414 && EQ (XWINDOW (window)->buffer, buffer)) | |
| 3415 { | |
| 3416 Lisp_Object another_buffer = Fother_buffer (buffer, Qnil, Qnil); | |
| 3417 Lisp_Object frame = WINDOW_FRAME (XWINDOW (window)); | |
| 3418 if (NILP (another_buffer)) | |
| 3419 another_buffer = Fget_buffer_create (QSscratch); | |
| 3420 if (!NILP (XWINDOW (window)->dedicated) | |
| 3421 && EQ (window, | |
| 3422 FRAME_ROOT_WINDOW (XFRAME (frame))) | |
| 1979 | 3423 && (allow_deletion_of_last_visible_frame |
| 3424 || other_visible_frames (XFRAME (frame)))) | |
| 448 | 3425 { |
| 3426 delete_frame_internal (XFRAME (frame), 0, 0, 0); /* GC */ | |
| 3427 } | |
| 3428 else | |
| 3429 { | |
| 3430 Fset_window_buffer (window, another_buffer, Qnil); | |
| 3431 if (EQ (window, Fselected_window (Qnil))) | |
| 3432 Fset_buffer (XWINDOW (window)->buffer); | |
| 3433 } | |
| 3434 } | |
| 3435 } | |
| 3436 UNGCPRO; | |
| 428 | 3437 return Qnil; |
| 3438 } | |
| 3439 | |
| 3440 /* The smallest acceptable dimensions for a window. Anything smaller | |
| 3441 might crash Emacs. */ | |
| 3442 #define MIN_SAFE_WINDOW_WIDTH (2) | |
| 3443 #define MIN_SAFE_WINDOW_HEIGHT (2) | |
| 3444 | |
| 3445 /* Make sure that window_min_height and window_min_width are | |
| 3446 not too small; if they are, set them to safe minima. */ | |
| 3447 | |
| 3448 static void | |
| 3449 check_min_window_sizes (void) | |
| 3450 { | |
| 3451 /* Smaller values might permit a crash. */ | |
| 3452 if (window_min_width < MIN_SAFE_WINDOW_WIDTH) | |
| 3453 window_min_width = MIN_SAFE_WINDOW_WIDTH; | |
| 3454 if (window_min_height < MIN_SAFE_WINDOW_HEIGHT) | |
| 3455 window_min_height = MIN_SAFE_WINDOW_HEIGHT; | |
| 3456 } | |
| 3457 | |
| 440 | 3458 static int |
| 3459 frame_min_height (struct frame *frame) | |
| 3460 { | |
| 3461 /* For height, we have to see whether the frame has a minibuffer, and | |
| 3462 whether it wants a modeline. */ | |
| 3463 return (FRAME_MINIBUF_ONLY_P (frame) ? MIN_SAFE_WINDOW_HEIGHT - 1 | |
| 3464 : (! FRAME_HAS_MINIBUF_P (frame)) ? MIN_SAFE_WINDOW_HEIGHT | |
| 3465 : 2 * MIN_SAFE_WINDOW_HEIGHT - 1); | |
| 3466 } | |
| 3467 | |
| 3468 /* Return non-zero if both frame sizes are less than or equal to | |
| 3469 minimal allowed values. ROWS and COLS are in characters */ | |
|
5047
07dcc7000bbf
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Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
3470 static int |
|
07dcc7000bbf
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Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
3471 frame_size_valid_p (struct frame *frame, int cols, int rows) |
| 440 | 3472 { |
| 3473 return (rows >= frame_min_height (frame) | |
| 3474 && cols >= MIN_SAFE_WINDOW_WIDTH); | |
| 3475 } | |
| 3476 | |
| 3477 /* Return non-zero if both frame sizes are less than or equal to | |
| 3478 minimal allowed values. WIDTH and HEIGHT are in pixels */ | |
| 3479 int | |
| 3480 frame_pixsize_valid_p (struct frame *frame, int width, int height) | |
| 3481 { | |
| 3482 int rows, cols; | |
| 5043 | 3483 pixel_to_char_size (frame, width, height, &cols, &rows); |
|
5047
07dcc7000bbf
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Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
3484 return frame_size_valid_p (frame, cols, rows); |
| 440 | 3485 } |
| 3486 | |
| 428 | 3487 /* If *ROWS or *COLS are too small a size for FRAME, set them to the |
| 3488 minimum allowable size. */ | |
| 3489 void | |
|
5047
07dcc7000bbf
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Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
3490 check_frame_size (struct frame *frame, int *cols, int *rows) |
| 428 | 3491 { |
| 440 | 3492 int min_height = frame_min_height (frame); |
| 5043 | 3493 int min_pixwidth, min_pixheight; |
| 3494 int min_geomwidth, min_geomheight; | |
| 3495 | |
| 3496 /* There is no char_to_frame_unit_size(). This can be done with | |
| 3497 frame_conversion_internal(), but that's currently static, and we can | |
| 3498 do it fine with two steps, as follows. */ | |
| 3499 char_to_pixel_size (frame, MIN_SAFE_WINDOW_WIDTH, min_height, | |
| 3500 &min_pixwidth, &min_pixheight); | |
| 3501 pixel_to_frame_unit_size (frame, min_pixwidth, min_pixheight, | |
| 3502 &min_geomwidth, &min_geomheight); | |
| 3503 if (*rows < min_geomheight) | |
| 3504 *rows = min_geomheight; | |
| 3505 if (*cols < min_geomwidth) | |
| 3506 *cols = min_geomwidth; | |
| 428 | 3507 } |
| 3508 | |
| 3509 /* Normally the window is deleted if it gets too small. | |
| 3510 nodelete nonzero means do not do this. | |
| 3511 (The caller should check later and do so if appropriate) */ | |
| 3512 static void | |
| 3513 set_window_pixsize (Lisp_Object window, int new_pixsize, int nodelete, | |
| 3514 int set_height) | |
| 3515 { | |
| 3516 struct window *w = XWINDOW (window); | |
| 3517 struct frame *f = XFRAME (w->frame); | |
| 3518 struct window *c; | |
| 3519 int old_pixsize = (set_height ? WINDOW_HEIGHT (w) : WINDOW_WIDTH (w)); | |
| 3520 Lisp_Object child, minor_kid, major_kid; | |
| 3521 int minsize; | |
| 3522 int line_size; | |
| 3523 int defheight, defwidth; | |
| 3524 | |
|
5047
07dcc7000bbf
put width before height consistently, fix a real bug found in the process
Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
3525 default_face_width_and_height (window, &defwidth, &defheight); |
| 428 | 3526 line_size = (set_height ? defheight : defwidth); |
| 3527 | |
| 3528 check_min_window_sizes (); | |
| 3529 | |
| 3530 minsize = (set_height ? window_min_height : window_min_width); | |
| 3531 minsize *= line_size; | |
| 3532 | |
| 3533 if (!nodelete | |
| 3534 && !TOP_LEVEL_WINDOW_P (w) | |
|
4375
74e0e1131e01
Update window-size computation.
Mike Sperber <sperber@deinprogramm.de>
parents:
3707
diff
changeset
|
3535 && (new_pixsize + window_modeline_height (w)) < minsize) |
| 428 | 3536 { |
| 3537 Fdelete_window (window, Qnil); | |
| 3538 return; | |
| 3539 } | |
| 3540 | |
| 3541 SET_LAST_MODIFIED (w, 0); | |
| 3542 SET_LAST_FACECHANGE (w); | |
| 3543 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f); /* multiple windows affected */ | |
| 3544 if (set_height) | |
| 3545 { | |
| 3546 WINDOW_HEIGHT (w) = new_pixsize; | |
| 3547 major_kid = w->vchild; | |
| 3548 minor_kid = w->hchild; | |
| 3549 } | |
| 3550 else | |
| 3551 { | |
| 3552 WINDOW_WIDTH (w) = new_pixsize; | |
| 3553 major_kid = w->hchild; | |
| 3554 minor_kid = w->vchild; | |
| 3555 } | |
| 3556 | |
| 3557 if (!NILP (minor_kid)) | |
| 3558 { | |
| 3559 for (child = minor_kid; !NILP (child); child = XWINDOW (child)->next) | |
| 3560 { | |
| 3561 if (set_height) | |
| 3562 WINDOW_TOP (XWINDOW (child)) = WINDOW_TOP (w); | |
| 3563 else | |
| 3564 WINDOW_LEFT (XWINDOW (child)) = WINDOW_LEFT (w); | |
| 3565 | |
| 3566 set_window_pixsize (child, new_pixsize, nodelete, set_height); | |
| 3567 } | |
| 3568 } | |
| 3569 else if (!NILP (major_kid)) | |
| 3570 { | |
| 3571 int last_pos, last_old_pos, pos, old_pos, first; | |
| 3572 int pixel_adj_left = new_pixsize - old_pixsize; | |
| 3573 int div_val = old_pixsize << 1; | |
| 3574 | |
| 3575 /* | |
| 3576 * Previously we bailed out here if there was no size change. | |
| 3577 * (pixel_adj_left == 0) But this broke toolbar updates. If a | |
| 3578 * toolbar appears or disappears, windows may not change size, | |
| 3579 * but their top and left coordinates need to be updated. | |
| 3580 * | |
| 3581 * So we don't bail until after the loop below. | |
| 3582 */ | |
| 3583 | |
| 3584 last_pos = first = (set_height ? WINDOW_TOP (w) : WINDOW_LEFT (w)); | |
| 3585 last_old_pos = 0; | |
| 3586 | |
| 3587 for (child = major_kid; !NILP (child); child = c->next) | |
| 3588 { | |
| 3589 c = XWINDOW (child); | |
| 3590 | |
| 3591 if (set_height) | |
| 3592 { | |
| 3593 old_pos = last_old_pos + WINDOW_HEIGHT (c); | |
| 3594 WINDOW_TOP (c) = last_pos; | |
| 3595 } | |
| 3596 else | |
| 3597 { | |
| 3598 old_pos = last_old_pos + WINDOW_WIDTH (c); | |
| 3599 WINDOW_LEFT (c) = last_pos; | |
| 3600 } | |
| 3601 | |
| 3602 pos = (((old_pos * new_pixsize) << 1) + old_pixsize) / div_val; | |
| 3603 /* All but the last window should have a height which is | |
| 3604 a multiple of the default line height. */ | |
| 3605 if (!NILP (c->next)) | |
|
4446
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3606 { |
|
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3607 /* |
|
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3608 * 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
|
3609 * 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
|
3610 * cancel out actually do cancel out. |
|
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3611 */ |
|
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3612 if (pixel_adj_left < 0) |
|
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3613 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
|
3614 else |
|
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3615 pos = (pos / line_size) * line_size; |
|
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3616 } |
| 428 | 3617 |
| 3618 /* Avoid confusion: don't delete child if it becomes too small */ | |
| 3619 set_window_pixsize (child, pos + first - last_pos, 1, set_height); | |
| 3620 | |
| 3621 last_pos = pos + first; | |
| 3622 last_old_pos = old_pos; | |
| 3623 } | |
| 3624 | |
| 3625 /* Sometimes we may get called with our old size. In that case | |
| 3626 we don't need to do anything else. */ | |
| 3627 if (!pixel_adj_left) | |
| 3628 return; | |
| 3629 | |
| 3630 /* Now delete any children that became too small. */ | |
| 3631 if (!nodelete) | |
| 3632 for (child = major_kid; !NILP (child); child = XWINDOW (child)->next) | |
| 3633 { | |
| 3634 if (set_height) | |
| 3635 set_window_pixheight (child, WINDOW_HEIGHT (XWINDOW (child)), 0); | |
| 3636 else | |
| 3637 set_window_pixwidth (child, WINDOW_WIDTH (XWINDOW (child)), 0); | |
| 3638 } | |
| 3639 } | |
| 3640 } | |
| 3641 | |
| 3642 /* Set the height of WINDOW and all its inferiors. */ | |
| 3643 void | |
| 3644 set_window_pixheight (Lisp_Object window, int new_pixheight, int nodelete) | |
| 3645 { | |
| 3646 set_window_pixsize (window, new_pixheight, nodelete, 1); | |
| 3647 } | |
| 3648 | |
| 3649 /* Recursively set width of WINDOW and its inferiors. */ | |
| 3650 void | |
| 3651 set_window_pixwidth (Lisp_Object window, int new_pixwidth, int nodelete) | |
| 3652 { | |
| 3653 set_window_pixsize (window, new_pixwidth, nodelete, 0); | |
| 3654 } | |
| 3655 | |
| 3656 | |
| 3657 static int window_select_count; | |
| 3658 | |
| 440 | 3659 DEFUN ("set-window-buffer", Fset_window_buffer, 2, 3, 0, /* |
| 428 | 3660 Make WINDOW display BUFFER as its contents. |
| 3661 BUFFER can be a buffer or buffer name. | |
| 440 | 3662 |
| 442 | 3663 With non-nil optional argument NORECORD, do not modify the |
| 440 | 3664 global or per-frame buffer ordering. |
| 428 | 3665 */ |
| 440 | 3666 (window, buffer, norecord)) |
| 428 | 3667 { |
| 3668 Lisp_Object tem; | |
| 3669 struct window *w = decode_window (window); | |
| 448 | 3670 int old_buffer_local_face_property = 0; |
| 428 | 3671 |
| 3672 buffer = Fget_buffer (buffer); | |
| 3673 CHECK_BUFFER (buffer); | |
| 3674 | |
| 3675 if (!BUFFER_LIVE_P (XBUFFER (buffer))) | |
| 563 | 3676 invalid_operation ("Attempt to display deleted buffer", Qunbound); |
| 428 | 3677 |
| 3678 tem = w->buffer; | |
| 3679 if (NILP (tem)) | |
| 563 | 3680 invalid_operation ("Window is deleted", Qunbound); |
| 428 | 3681 else if (EQ (tem, buffer)) |
| 3682 return Qnil; | |
| 3683 else if (! EQ (tem, Qt)) /* w->buffer is t when the window | |
| 3684 is first being set up. */ | |
| 3685 { | |
| 3686 if (!NILP (w->dedicated) && !EQ (tem, buffer)) | |
| 563 | 3687 signal_error (Qinvalid_operation, "Window is dedicated to buffer", tem); |
| 428 | 3688 |
| 448 | 3689 old_buffer_local_face_property = |
| 3690 XBUFFER (w->buffer)->buffer_local_face_property; | |
| 428 | 3691 unshow_buffer (w); |
| 3692 } | |
| 3693 | |
| 3694 w->buffer = buffer; | |
| 3695 w->window_end_pos[CURRENT_DISP] = 0; | |
| 3696 w->hscroll = 0; | |
| 3697 w->modeline_hscroll = 0; | |
| 844 | 3698 #if 0 /* pre point caches */ |
| 428 | 3699 Fset_marker (w->pointm[CURRENT_DISP], |
| 3700 make_int (BUF_PT (XBUFFER (buffer))), | |
| 3701 buffer); | |
| 3702 set_marker_restricted (w->start[CURRENT_DISP], | |
| 3703 make_int (XBUFFER (buffer)->last_window_start), | |
| 3704 buffer); | |
| 844 | 3705 #else |
| 3706 { | |
| 3707 Lisp_Object marker = Fgethash (buffer, w->saved_point_cache, Qnil); | |
| 3708 Lisp_Object newpoint = | |
| 3709 !NILP (marker) ? make_int (marker_position (marker)) : | |
| 3710 make_int (BUF_PT (XBUFFER (buffer))); | |
| 3711 /* Previously, we had in here set-window-point, which did one of the | |
| 3712 following two, but not both. However, that could result in pointm | |
| 3713 being in a different buffer from the window's buffer! Probably | |
| 3714 not a travesty since it always occurred when the window was | |
| 3715 selected, meaning its value of point was ignored in favor of the | |
| 3716 buffer's; but it tripped an assert() in unshow_buffer(). */ | |
| 3717 set_marker_restricted (w->pointm[CURRENT_DISP], newpoint, buffer); | |
| 3718 if (EQ (wrap_window (w), Fselected_window (Qnil))) | |
| 3719 Fgoto_char (newpoint, buffer); /* this will automatically clip to | |
| 3720 accessible */ | |
| 3721 marker = Fgethash (buffer, w->saved_last_window_start_cache, Qnil); | |
| 3722 set_marker_restricted (w->start[CURRENT_DISP], | |
| 3723 !NILP (marker) ? | |
| 3724 make_int (marker_position (marker)) : | |
| 3725 make_int (XBUFFER (buffer)->last_window_start), | |
| 3726 buffer); | |
| 3727 } | |
| 3728 #endif | |
| 3729 | |
| 428 | 3730 Fset_marker (w->sb_point, w->start[CURRENT_DISP], buffer); |
| 3731 /* set start_at_line_beg correctly. GE */ | |
| 844 | 3732 w->start_at_line_beg = |
| 3733 beginning_of_line_p (XBUFFER (buffer), | |
| 3734 marker_position (w->start[CURRENT_DISP])); | |
| 3735 w->force_start = 0; /* XEmacs fix */ | |
| 428 | 3736 SET_LAST_MODIFIED (w, 1); |
| 3737 SET_LAST_FACECHANGE (w); | |
| 3738 MARK_WINDOWS_CHANGED (w); | |
| 448 | 3739 { |
| 3740 int new_buffer_local_face_property = | |
| 3741 XBUFFER (w->buffer)->buffer_local_face_property; | |
| 3742 | |
| 3743 if (new_buffer_local_face_property | |
| 3744 || new_buffer_local_face_property != old_buffer_local_face_property) | |
| 3745 MARK_WINDOW_FACES_CHANGED (w); | |
| 3746 } | |
| 428 | 3747 recompute_all_cached_specifiers_in_window (w); |
| 3748 if (EQ (window, Fselected_window (Qnil))) | |
| 3749 { | |
| 440 | 3750 if (NILP (norecord)) |
| 3751 Frecord_buffer (buffer); | |
| 3752 | |
| 428 | 3753 Fset_buffer (buffer); |
| 3754 } | |
| 3755 return Qnil; | |
| 3756 } | |
| 3757 | |
| 3758 DEFUN ("select-window", Fselect_window, 1, 2, 0, /* | |
| 3759 Select WINDOW. Most editing will apply to WINDOW's buffer. | |
| 3760 The main editor command loop selects the buffer of the selected window | |
| 3761 before each command. | |
| 3762 | |
| 442 | 3763 With non-nil optional argument NORECORD, do not modify the |
| 428 | 3764 global or per-frame buffer ordering. |
| 3765 */ | |
| 3766 (window, norecord)) | |
| 3767 { | |
| 3768 struct window *w; | |
| 3769 Lisp_Object old_selected_window = Fselected_window (Qnil); | |
| 3770 | |
| 3771 CHECK_LIVE_WINDOW (window); | |
| 3772 w = XWINDOW (window); | |
| 3773 | |
| 3774 /* we have already caught dead-window errors */ | |
| 3775 if (!NILP (w->hchild) || !NILP (w->vchild)) | |
| 563 | 3776 invalid_operation ("Trying to select non-leaf window", Qunbound); |
| 428 | 3777 |
| 3778 w->use_time = make_int (++window_select_count); | |
| 442 | 3779 |
| 428 | 3780 if (EQ (window, old_selected_window)) |
| 3781 return window; | |
| 3782 | |
| 3783 /* deselect the old window, if it exists (it might not exist if | |
| 3784 the selected device has no frames, which occurs at startup) */ | |
| 3785 if (!NILP (old_selected_window)) | |
| 3786 { | |
| 3787 struct window *ow = XWINDOW (old_selected_window); | |
| 3788 | |
| 3789 Fset_marker (ow->pointm[CURRENT_DISP], | |
| 3790 make_int (BUF_PT (XBUFFER (ow->buffer))), | |
| 3791 ow->buffer); | |
| 3792 | |
| 3793 MARK_WINDOWS_CHANGED (ow); | |
| 3794 } | |
| 3795 | |
| 3796 /* now select the window's frame */ | |
| 3797 set_frame_selected_window (XFRAME (WINDOW_FRAME (w)), window); | |
| 3798 | |
| 3799 select_frame_1 (WINDOW_FRAME (w)); | |
| 3800 | |
| 3801 /* also select the window's buffer */ | |
| 3802 if (NILP (norecord)) | |
| 3803 Frecord_buffer (w->buffer); | |
| 3804 Fset_buffer (w->buffer); | |
| 3805 | |
| 3806 /* Go to the point recorded in the window. | |
| 3807 This is important when the buffer is in more | |
| 3808 than one window. It also matters when | |
| 3809 redisplay_window has altered point after scrolling, | |
| 3810 because it makes the change only in the window. */ | |
| 3811 { | |
| 665 | 3812 Charbpos new_point = marker_position (w->pointm[CURRENT_DISP]); |
| 428 | 3813 if (new_point < BUF_BEGV (current_buffer)) |
| 3814 new_point = BUF_BEGV (current_buffer); | |
| 3815 else if (new_point > BUF_ZV (current_buffer)) | |
| 3816 new_point = BUF_ZV (current_buffer); | |
| 3817 | |
| 3818 BUF_SET_PT (current_buffer, new_point); | |
| 3819 } | |
| 3820 | |
| 3821 MARK_WINDOWS_CHANGED (w); | |
| 3822 | |
| 3823 return window; | |
| 3824 } | |
| 3825 | |
| 3826 Lisp_Object | |
| 3827 display_buffer (Lisp_Object buffer, Lisp_Object not_this_window_p, | |
| 3828 Lisp_Object override_frame) | |
| 3829 { | |
| 3830 return call3 (Qdisplay_buffer, buffer, not_this_window_p, override_frame); | |
| 3831 } | |
| 3832 | |
| 3833 void | |
| 3834 temp_output_buffer_show (Lisp_Object buf, Lisp_Object same_frame) | |
| 3835 { | |
| 3836 /* This function can GC */ | |
| 3837 Lisp_Object window; | |
| 3838 struct window *w; | |
| 3839 struct buffer *b = XBUFFER (buf); | |
| 3840 | |
| 3841 BUF_SAVE_MODIFF (XBUFFER (buf)) = BUF_MODIFF (b); | |
| 3842 widen_buffer (b, 0); | |
| 3843 BUF_SET_PT (b, BUF_BEG (b)); | |
| 3844 | |
| 3845 if (!NILP (Vtemp_buffer_show_function)) | |
| 3846 call1 (Vtemp_buffer_show_function, buf); | |
| 3847 else | |
| 3848 { | |
| 3849 window = display_buffer (buf, Qnil, same_frame); | |
| 3850 | |
| 3851 if (!EQ (XWINDOW (window)->frame, Fselected_frame (Qnil))) | |
| 3852 Fmake_frame_visible (WINDOW_FRAME (XWINDOW (window))); | |
| 3853 | |
| 3854 Vminibuffer_scroll_window = window; | |
| 3855 w = XWINDOW (window); | |
| 3856 w->hscroll = 0; | |
| 3857 w->modeline_hscroll = 0; | |
| 3858 set_marker_restricted (w->start[CURRENT_DISP], make_int (1), buf); | |
| 3859 set_marker_restricted (w->pointm[CURRENT_DISP], make_int (1), buf); | |
| 3860 set_marker_restricted (w->sb_point, make_int (1), buf); | |
| 3861 } | |
| 3862 } | |
| 3863 | |
| 3864 static void | |
| 3865 make_dummy_parent (Lisp_Object window) | |
| 3866 { | |
| 3867 struct window *o = XWINDOW (window); | |
|
5127
a9c41067dd88
more cleanups, terminology clarification, lots of doc work
Ben Wing <ben@xemacs.org>
parents:
5126
diff
changeset
|
3868 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
|
3869 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
|
3870 |
|
5127
a9c41067dd88
more cleanups, terminology clarification, lots of doc work
Ben Wing <ben@xemacs.org>
parents:
5126
diff
changeset
|
3871 copy_lisp_object (obj, window); |
| 428 | 3872 |
| 3873 /* Don't copy the pointers to the line start cache or the face | |
| 3874 instances. */ | |
| 3875 p->line_start_cache = Dynarr_new (line_start_cache); | |
| 3092 | 3876 #ifdef NEW_GC |
| 3877 p->face_cachels = Dynarr_lisp_new (face_cachel, | |
| 3878 &lrecord_face_cachel_dynarr, | |
| 3879 &lrecord_face_cachel); | |
| 3880 p->glyph_cachels = Dynarr_lisp_new (glyph_cachel, | |
| 3881 &lrecord_glyph_cachel_dynarr, | |
| 3882 &lrecord_glyph_cachel); | |
| 3883 #else /* not NEW_GC */ | |
| 428 | 3884 p->face_cachels = Dynarr_new (face_cachel); |
| 3885 p->glyph_cachels = Dynarr_new (glyph_cachel); | |
| 3092 | 3886 #endif /* not NEW_GC */ |
| 442 | 3887 p->subwindow_instance_cache = |
| 450 | 3888 make_image_instance_cache_hash_table (); |
| 428 | 3889 |
| 3890 /* 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
|
3891 replace_window (window, obj); |
| 428 | 3892 |
| 3893 o->next = Qnil; | |
| 3894 o->prev = Qnil; | |
| 3895 o->vchild = Qnil; | |
| 3896 o->hchild = Qnil; | |
|
5117
3742ea8250b5
Checking in final CVS version of workspace 'ben-lisp-object'
Ben Wing <ben@xemacs.org>
parents:
3078
diff
changeset
|
3897 o->parent = obj; |
| 428 | 3898 |
| 3899 p->start[CURRENT_DISP] = Qnil; | |
| 3900 p->start[DESIRED_DISP] = Qnil; | |
| 3901 p->start[CMOTION_DISP] = Qnil; | |
| 3902 p->pointm[CURRENT_DISP] = Qnil; | |
| 3903 p->pointm[DESIRED_DISP] = Qnil; | |
| 3904 p->pointm[CMOTION_DISP] = Qnil; | |
| 3905 p->sb_point = Qnil; | |
| 844 | 3906 p->saved_point_cache = make_saved_buffer_point_cache (); |
| 3907 p->saved_last_window_start_cache = make_saved_buffer_point_cache (); | |
| 428 | 3908 p->buffer = Qnil; |
| 3909 } | |
| 3910 | |
| 3911 DEFUN ("split-window", Fsplit_window, 0, 3, "", /* | |
| 3912 Split WINDOW, putting SIZE lines in the first of the pair. | |
| 444 | 3913 WINDOW defaults to the selected one and SIZE to half its size. |
| 707 | 3914 If optional third arg HORFLAG is non-nil, split side by side and put |
| 3915 SIZE columns in the first of the pair. The newly created window is | |
| 3916 returned. | |
| 428 | 3917 */ |
| 444 | 3918 (window, size, horflag)) |
| 428 | 3919 { |
| 3025 | 3920 Lisp_Object new_; |
| 428 | 3921 struct window *o, *p; |
| 3922 struct frame *f; | |
| 444 | 3923 int csize; |
| 428 | 3924 int psize; |
| 3925 | |
| 3926 if (NILP (window)) | |
| 3927 window = Fselected_window (Qnil); | |
| 3928 else | |
| 3929 CHECK_LIVE_WINDOW (window); | |
| 3930 | |
| 3931 o = XWINDOW (window); | |
| 3932 f = XFRAME (WINDOW_FRAME (o)); | |
| 3933 | |
| 444 | 3934 if (NILP (size)) |
| 428 | 3935 { |
| 3936 if (!NILP (horflag)) | |
| 3937 /* In the new scheme, we are symmetric with respect to separators | |
| 3938 so there is no need to do weird things here. */ | |
| 3939 { | |
| 956 | 3940 psize = (WINDOW_WIDTH (o) + window_divider_width (o)) >> 1; |
| 444 | 3941 csize = window_pixel_width_to_char_width (o, psize, 0); |
| 428 | 3942 } |
| 3943 else | |
| 3944 { | |
| 3945 psize = WINDOW_HEIGHT (o) >> 1; | |
| 444 | 3946 csize = window_pixel_height_to_char_height (o, psize, 1); |
| 428 | 3947 } |
| 3948 } | |
| 3949 else | |
| 3950 { | |
| 444 | 3951 CHECK_INT (size); |
| 3952 csize = XINT (size); | |
| 428 | 3953 if (!NILP (horflag)) |
| 444 | 3954 psize = window_char_width_to_pixel_width (o, csize, 0); |
| 428 | 3955 else |
| 444 | 3956 psize = window_char_height_to_pixel_height (o, csize, 1); |
| 428 | 3957 } |
| 3958 | |
| 3959 if (MINI_WINDOW_P (o)) | |
| 563 | 3960 invalid_operation ("Attempt to split minibuffer window", Qunbound); |
| 428 | 3961 else if (FRAME_NO_SPLIT_P (XFRAME (WINDOW_FRAME (o)))) |
| 563 | 3962 invalid_operation ("Attempt to split unsplittable frame", Qunbound); |
| 428 | 3963 |
| 3964 check_min_window_sizes (); | |
| 3965 | |
| 3966 if (NILP (horflag)) | |
| 3967 { | |
| 444 | 3968 if (csize < window_min_height) |
| 563 | 3969 signal_error (Qinvalid_operation, "Window height too small (after splitting)", make_int (csize)); |
| 444 | 3970 if (csize + window_min_height > window_char_height (o, 1)) |
| 563 | 3971 signal_error (Qinvalid_operation, "Window height too small (after splitting)", |
| 3972 make_int (window_char_height (o, 1) - csize)); | |
| 428 | 3973 if (NILP (o->parent) |
| 3974 || NILP (XWINDOW (o->parent)->vchild)) | |
| 3975 { | |
| 3976 make_dummy_parent (window); | |
| 448 | 3977 #if 0 |
| 3978 /* #### I can't understand why you have to reset face | |
| 3979 cachels here. This can cause crash so let's disable it | |
| 3980 and see the difference. See redisplay-tests.el --yh */ | |
| 428 | 3981 reset_face_cachels (XWINDOW (window)); |
| 448 | 3982 #endif |
| 3025 | 3983 new_ = o->parent; |
| 3984 XWINDOW (new_)->vchild = window; | |
| 428 | 3985 XFRAME (o->frame)->mirror_dirty = 1; |
| 3986 } | |
| 3987 } | |
| 3988 else | |
| 3989 { | |
| 444 | 3990 if (csize < window_min_width) |
| 563 | 3991 signal_error (Qinvalid_operation, "Window width too small (after splitting)", make_int (csize)); |
| 444 | 3992 if (csize + window_min_width > window_char_width (o, 0)) |
| 563 | 3993 signal_error (Qinvalid_operation, "Window width too small (after splitting)", |
| 3994 make_int (window_char_width (o, 0) - csize)); | |
| 428 | 3995 if (NILP (o->parent) |
| 3996 || NILP (XWINDOW (o->parent)->hchild)) | |
| 3997 { | |
| 3998 make_dummy_parent (window); | |
| 448 | 3999 #if 0 |
| 4000 /* #### See above. */ | |
| 428 | 4001 reset_face_cachels (XWINDOW (window)); |
| 448 | 4002 #endif |
| 3025 | 4003 new_ = o->parent; |
| 4004 XWINDOW (new_)->hchild = window; | |
| 428 | 4005 XFRAME (o->frame)->mirror_dirty = 1; |
| 4006 } | |
| 4007 } | |
| 4008 | |
| 4009 /* Now we know that window's parent is a vertical combination | |
| 4010 if we are dividing vertically, or a horizontal combination | |
| 4011 if we are making side-by-side windows */ | |
| 4012 | |
| 4013 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f); | |
| 3025 | 4014 new_ = allocate_window (); |
| 4015 p = XWINDOW (new_); | |
| 428 | 4016 |
| 4017 p->frame = o->frame; | |
| 4018 p->next = o->next; | |
| 4019 if (!NILP (p->next)) | |
| 3025 | 4020 XWINDOW (p->next)->prev = new_; |
| 428 | 4021 p->prev = window; |
| 3025 | 4022 o->next = new_; |
| 428 | 4023 p->parent = o->parent; |
| 4024 p->buffer = Qt; | |
| 4025 | |
| 4026 reset_face_cachels (p); | |
| 4027 reset_glyph_cachels (p); | |
| 4028 | |
| 4029 | |
| 4030 /* Apportion the available frame space among the two new windows */ | |
| 4031 | |
| 4032 if (!NILP (horflag)) | |
| 4033 { | |
| 4034 WINDOW_HEIGHT (p) = WINDOW_HEIGHT (o); | |
| 4035 WINDOW_TOP (p) = WINDOW_TOP (o); | |
| 4036 WINDOW_WIDTH (p) = WINDOW_WIDTH (o) - psize; | |
| 4037 WINDOW_WIDTH (o) = psize; | |
| 4038 WINDOW_LEFT (p) = WINDOW_LEFT (o) + psize; | |
| 4039 } | |
| 4040 else | |
| 4041 { | |
| 4042 WINDOW_LEFT (p) = WINDOW_LEFT (o); | |
| 4043 WINDOW_WIDTH (p) = WINDOW_WIDTH (o); | |
| 4044 WINDOW_HEIGHT (p) = WINDOW_HEIGHT (o) - psize; | |
| 4045 WINDOW_HEIGHT (o) = psize; | |
| 4046 WINDOW_TOP (p) = WINDOW_TOP (o) + psize; | |
| 4047 } | |
| 4048 | |
| 4049 XFRAME (p->frame)->mirror_dirty = 1; | |
| 853 | 4050 |
| 3025 | 4051 note_object_created (new_); |
| 853 | 4052 |
| 428 | 4053 /* do this last (after the window is completely initialized and |
| 4054 the mirror-dirty flag is set) so that specifier recomputation | |
| 4055 caused as a result of this will work properly and not abort. */ | |
| 3025 | 4056 Fset_window_buffer (new_, o->buffer, Qt); |
| 4057 return new_; | |
| 428 | 4058 } |
| 4059 | |
| 4060 | |
| 4061 DEFUN ("enlarge-window", Fenlarge_window, 1, 3, "_p", /* | |
| 444 | 4062 Make the selected window COUNT lines taller. |
| 4063 From program, optional second arg HORIZONTALP non-nil means grow | |
| 4064 sideways COUNT columns, and optional third arg WINDOW specifies the | |
| 4065 window to change instead of the selected window. | |
| 428 | 4066 */ |
| 444 | 4067 (count, horizontalp, window)) |
| 4068 { | |
| 4069 CHECK_INT (count); | |
| 4070 change_window_height (window, XINT (count), horizontalp, /* inpixels */ 0); | |
| 428 | 4071 return Qnil; |
| 4072 } | |
| 4073 | |
| 4074 DEFUN ("enlarge-window-pixels", Fenlarge_window_pixels, 1, 3, "_p", /* | |
| 444 | 4075 Make the selected window COUNT pixels taller. |
| 4076 From program, optional second arg HORIZONTALP non-nil means grow | |
| 4077 sideways COUNT pixels, and optional third arg WINDOW specifies the | |
| 4078 window to change instead of the selected window. | |
| 428 | 4079 */ |
| 444 | 4080 (count, horizontalp, window)) |
| 4081 { | |
| 4082 CHECK_INT (count); | |
| 4083 change_window_height (window, XINT (count), horizontalp, /* inpixels */ 1); | |
| 428 | 4084 return Qnil; |
| 4085 } | |
| 4086 | |
| 4087 DEFUN ("shrink-window", Fshrink_window, 1, 3, "_p", /* | |
| 444 | 4088 Make the selected window COUNT lines shorter. |
| 4089 From program, optional second arg HORIZONTALP non-nil means shrink | |
| 4090 sideways COUNT columns, and optional third arg WINDOW specifies the | |
| 4091 window to change instead of the selected window. | |
| 428 | 4092 */ |
| 444 | 4093 (count, horizontalp, window)) |
| 4094 { | |
| 4095 CHECK_INT (count); | |
| 4096 change_window_height (window, -XINT (count), horizontalp, /* inpixels */ 0); | |
| 428 | 4097 return Qnil; |
| 4098 } | |
| 4099 | |
| 4100 DEFUN ("shrink-window-pixels", Fshrink_window_pixels, 1, 3, "_p", /* | |
| 444 | 4101 Make the selected window COUNT pixels smaller. |
| 4102 From program, optional second arg HORIZONTALP non-nil means shrink | |
| 4103 sideways COUNT pixels, and optional third arg WINDOW specifies the | |
| 4104 window to change instead of the selected window. | |
| 428 | 4105 */ |
| 444 | 4106 (count, horizontalp, window)) |
| 4107 { | |
| 4108 CHECK_INT (count); | |
| 4109 change_window_height (window, -XINT (count), horizontalp, /* inpixels */ 1); | |
| 428 | 4110 return Qnil; |
| 4111 } | |
| 4112 | |
| 4113 static int | |
| 4114 window_pixel_height_to_char_height (struct window *w, int pixel_height, | |
| 4115 int include_gutters_p) | |
| 4116 { | |
| 4117 int avail_height; | |
| 4118 int defheight, defwidth; | |
| 3687 | 4119 int char_height = 0; |
| 793 | 4120 Lisp_Object window = wrap_window (w); |
| 4121 | |
| 428 | 4122 |
| 4123 avail_height = (pixel_height - | |
| 4124 (include_gutters_p ? 0 : | |
| 442 | 4125 window_top_window_gutter_height (w) + |
| 4126 window_bottom_window_gutter_height (w))); | |
| 428 | 4127 |
|
5047
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put width before height consistently, fix a real bug found in the process
Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
4128 default_face_width_and_height (window, &defwidth, &defheight); |
| 428 | 4129 |
| 3687 | 4130 if (defheight) |
| 4131 char_height = avail_height / defheight; | |
| 428 | 4132 |
| 4133 /* It's the calling function's responsibility to check these values | |
| 4134 and make sure they're not out of range. | |
| 4135 | |
| 4136 #### We need to go through the calling functions and actually | |
| 4137 do this. */ | |
| 4138 return max (0, char_height); | |
| 4139 } | |
| 4140 | |
| 4141 static int | |
| 4142 window_char_height_to_pixel_height (struct window *w, int char_height, | |
| 4143 int include_gutters_p) | |
| 4144 { | |
| 4145 int avail_height; | |
| 4146 int defheight, defwidth; | |
| 4147 int pixel_height; | |
| 4148 | |
| 793 | 4149 Lisp_Object window = wrap_window (w); |
| 4150 | |
| 428 | 4151 |
|
5047
07dcc7000bbf
put width before height consistently, fix a real bug found in the process
Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
4152 default_face_width_and_height (window, &defwidth, &defheight); |
| 428 | 4153 |
| 4154 avail_height = char_height * defheight; | |
| 4155 pixel_height = (avail_height + | |
| 4156 (include_gutters_p ? 0 : | |
| 442 | 4157 window_top_window_gutter_height (w) + |
| 4158 window_bottom_window_gutter_height (w))); | |
| 428 | 4159 |
| 4160 /* It's the calling function's responsibility to check these values | |
| 4161 and make sure they're not out of range. | |
| 4162 | |
| 4163 #### We need to go through the calling functions and actually | |
| 4164 do this. */ | |
| 4165 return max (0, pixel_height); | |
| 4166 } | |
| 4167 | |
| 4168 /* Return number of default lines of text can fit in the window W. | |
| 4169 If INCLUDE_GUTTERS_P is 1, include "gutter" space (modeline plus | |
| 4170 horizontal scrollbar) in the space that is used for the calculation. | |
| 442 | 4171 This doesn't include space used by the frame gutters. |
| 428 | 4172 */ |
| 4173 int | |
| 4174 window_char_height (struct window *w, int include_gutters_p) | |
| 4175 { | |
| 442 | 4176 return window_pixel_height_to_char_height (w, window_pixel_height (w), |
| 428 | 4177 include_gutters_p); |
| 4178 } | |
| 4179 | |
| 4180 /* | |
| 4181 * Return number of lines currently displayed in window w. If | |
| 4182 * end-of-buffer is displayed then the area below end-of-buffer is assume | |
| 4183 * to be blank lines of default height. | |
| 4184 * Does not include the modeline. | |
| 4185 */ | |
| 4186 int | |
| 4187 window_displayed_height (struct window *w) | |
| 4188 { | |
| 4189 struct buffer *b = XBUFFER (w->buffer); | |
| 4190 display_line_dynarr *dla = window_display_lines (w, CURRENT_DISP); | |
| 4191 int num_lines; | |
| 4192 Charcount end_pos = (BUF_Z (b) - w->window_end_pos[CURRENT_DISP] > BUF_ZV (b) | |
| 4193 ? -1 | |
| 4194 : w->window_end_pos[CURRENT_DISP]); | |
| 4195 | |
| 4196 if (!Dynarr_length (dla)) | |
| 4197 return window_char_height (w, 0); | |
| 4198 | |
| 4199 num_lines = Dynarr_length (dla); | |
| 4200 | |
| 4201 /* #### Document and assert somewhere that w->window_end_pos == -1 | |
| 4202 indicates that end-of-buffer is being displayed. */ | |
| 4203 if (end_pos == -1) | |
| 4204 { | |
| 4967 | 4205 struct display_line *dl = Dynarr_begin (dla); |
| 428 | 4206 int ypos1 = dl->ypos + dl->descent; |
| 4207 int ypos2 = WINDOW_TEXT_BOTTOM (w); | |
| 4208 Lisp_Object window; | |
| 4209 int defheight, defwidth; | |
| 4210 | |
| 793 | 4211 window = wrap_window (w); |
| 428 | 4212 |
| 4213 if (dl->modeline) | |
| 4214 { | |
| 4215 num_lines--; | |
| 4216 | |
| 4217 if (Dynarr_length (dla) == 1) | |
| 4218 ypos1 = WINDOW_TEXT_TOP (w); | |
| 4219 else | |
| 4220 { | |
| 4221 dl = Dynarr_atp (dla, Dynarr_length (dla) - 1); | |
| 4222 /* If this line is clipped then we know that there is no | |
| 4223 blank room between eob and the modeline. If we are | |
| 4224 scrolling on clipped lines just know off the clipped | |
| 4225 line and return .*/ | |
| 4226 if (scroll_on_clipped_lines && dl->clip) | |
| 4227 return num_lines - 1; | |
| 4228 ypos1 = dl->ypos + dl->descent - dl->clip; | |
| 4229 } | |
| 4230 } | |
| 4231 | |
|
5047
07dcc7000bbf
put width before height consistently, fix a real bug found in the process
Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
4232 default_face_width_and_height (window, &defwidth, &defheight); |
| 428 | 4233 /* #### This probably needs to know about the clipping area once a |
| 4234 final definition is decided on. */ | |
| 3707 | 4235 if (defheight) |
| 4236 num_lines += ((ypos2 - ypos1) / defheight); | |
| 428 | 4237 } |
| 4238 else | |
| 4239 { | |
| 4967 | 4240 if (num_lines > 1 && Dynarr_begin (dla)->modeline) |
| 428 | 4241 num_lines--; |
| 4242 | |
| 4243 if (scroll_on_clipped_lines | |
| 4244 && Dynarr_atp (dla, Dynarr_length (dla) - 1)->clip) | |
| 4245 num_lines--; | |
| 4246 } | |
| 4247 | |
| 4248 return num_lines; | |
| 4249 } | |
| 4250 | |
| 4251 static int | |
| 4252 window_pixel_width (Lisp_Object window) | |
| 4253 { | |
| 4254 return WINDOW_WIDTH (XWINDOW (window)); | |
| 4255 } | |
| 4256 | |
| 442 | 4257 /* Calculate the pixel of a window, optionally including margin space |
| 4258 but no vertical gutters. */ | |
| 428 | 4259 static int |
| 4260 window_pixel_width_to_char_width (struct window *w, int pixel_width, | |
| 4261 int include_margins_p) | |
| 4262 { | |
| 4263 int avail_width; | |
| 3676 | 4264 int char_width = 0; |
| 428 | 4265 int defheight, defwidth; |
| 793 | 4266 Lisp_Object window = wrap_window (w); |
| 4267 | |
| 428 | 4268 |
| 4269 avail_width = (pixel_width - | |
| 4270 window_left_gutter_width (w, 0) - | |
| 4271 window_right_gutter_width (w, 0) - | |
| 4272 (include_margins_p ? 0 : window_left_margin_width (w)) - | |
| 4273 (include_margins_p ? 0 : window_right_margin_width (w))); | |
| 4274 | |
|
5047
07dcc7000bbf
put width before height consistently, fix a real bug found in the process
Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
4275 default_face_width_and_height (window, &defwidth, &defheight); |
| 428 | 4276 |
| 3676 | 4277 if (defwidth) |
| 4278 char_width = (avail_width / defwidth); | |
| 428 | 4279 |
| 4280 /* It's the calling function's responsibility to check these values | |
| 4281 and make sure they're not out of range. | |
| 4282 | |
| 4283 #### We need to go through the calling functions and actually | |
| 4284 do this. */ | |
| 4285 return max (0, char_width); | |
| 4286 } | |
| 4287 | |
| 4288 static int | |
| 4289 window_char_width_to_pixel_width (struct window *w, int char_width, | |
| 4290 int include_margins_p) | |
| 4291 { | |
| 4292 int avail_width; | |
| 4293 int pixel_width; | |
| 4294 int defheight, defwidth; | |
| 793 | 4295 Lisp_Object window = wrap_window (w); |
| 4296 | |
| 428 | 4297 |
|
5047
07dcc7000bbf
put width before height consistently, fix a real bug found in the process
Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
4298 default_face_width_and_height (window, &defwidth, &defheight); |
| 428 | 4299 |
| 4300 avail_width = char_width * defwidth; | |
| 4301 pixel_width = (avail_width + | |
| 442 | 4302 window_left_window_gutter_width (w, 0) + |
| 4303 window_right_window_gutter_width (w, 0) + | |
| 428 | 4304 (include_margins_p ? 0 : window_left_margin_width (w)) + |
| 4305 (include_margins_p ? 0 : window_right_margin_width (w))); | |
| 4306 | |
| 4307 /* It's the calling function's responsibility to check these values | |
| 4308 and make sure they're not out of range. | |
| 4309 | |
| 4310 #### We need to go through the calling functions and actually | |
| 4311 do this. */ | |
| 4312 return max (0, pixel_width); | |
| 4313 } | |
| 4314 | |
| 4315 /* This returns the usable space which doesn't include space needed by | |
| 4316 scrollbars or divider lines. */ | |
| 4317 int | |
| 4318 window_char_width (struct window *w, int include_margins_p) | |
| 4319 { | |
| 4320 return window_pixel_width_to_char_width (w, WINDOW_WIDTH (w), | |
| 4321 include_margins_p); | |
| 4322 } | |
| 4323 | |
| 4324 #define MINSIZE(w) \ | |
| 4325 (widthflag \ | |
| 4326 ? window_min_width * defwidth \ | |
| 4327 : (defheight * (MINI_WINDOW_P (XWINDOW (w)) ? 1 : window_min_height))) | |
| 4328 | |
| 4329 #define CURBEG(w) \ | |
| 4330 *(widthflag ? (int *) &WINDOW_LEFT (w) : (int *) &WINDOW_TOP (w)) | |
| 4331 | |
| 4332 #define CURSIZE(w) \ | |
| 4333 *(widthflag ? (int *) &WINDOW_WIDTH (w) : (int *) &WINDOW_HEIGHT (w)) | |
| 4334 | |
| 4335 #define CURCHARSIZE(w) \ | |
| 4336 (widthflag ? window_char_width (w, 0) : window_char_height (w, 1)) | |
| 4337 | |
| 4338 #define MINCHARSIZE(window) \ | |
| 4339 (widthflag ? window_min_width : MINI_WINDOW_P (XWINDOW (window)) \ | |
| 4340 ? 1 : window_min_height) | |
| 4341 | |
| 442 | 4342 static int |
| 4343 window_pixheight (Lisp_Object w) | |
| 4344 { | |
| 4345 return window_pixel_height (XWINDOW (w)); | |
| 4346 } | |
| 4347 | |
| 428 | 4348 /* Unlike set_window_pixheight, this function |
| 4349 also changes the heights of the siblings so as to | |
| 4350 keep everything consistent. */ | |
| 4351 | |
| 4352 static void | |
| 444 | 4353 change_window_height (Lisp_Object window, int delta, Lisp_Object horizontalp, |
| 428 | 4354 int inpixels) |
| 4355 { | |
| 444 | 4356 struct window *win = decode_window (window); |
| 4357 int widthflag = !NILP (horizontalp); | |
| 428 | 4358 Lisp_Object parent; |
| 4359 struct window *w; | |
| 4360 struct frame *f; | |
| 4361 int *sizep; | |
| 4362 int (*sizefun) (Lisp_Object) = (widthflag | |
| 4363 ? window_pixel_width | |
| 442 | 4364 : window_pixheight); |
| 428 | 4365 void (*setsizefun) (Lisp_Object, int, int) = (widthflag |
| 4366 ? set_window_pixwidth | |
| 4367 : set_window_pixheight); | |
| 4368 int dim; | |
| 4369 int defheight, defwidth; | |
| 4370 | |
| 4371 if (delta == 0) | |
| 4372 return; | |
| 4373 | |
| 4374 check_min_window_sizes (); | |
| 4375 | |
| 793 | 4376 window = wrap_window (win); |
| 428 | 4377 f = XFRAME (win->frame); |
| 4378 if (EQ (window, FRAME_ROOT_WINDOW (f))) | |
| 563 | 4379 invalid_operation ("Won't change only window", Qunbound); |
| 428 | 4380 |
|
5047
07dcc7000bbf
put width before height consistently, fix a real bug found in the process
Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
4381 default_face_width_and_height (window, &defwidth, &defheight); |
| 428 | 4382 |
| 4383 while (1) | |
| 4384 { | |
| 4385 w = XWINDOW (window); | |
| 4386 parent = w->parent; | |
| 4387 if (NILP (parent)) | |
| 4388 { | |
| 4389 if (widthflag) | |
| 3078 | 4390 { |
| 4391 int new_pixsize; | |
| 4392 sizep = &CURSIZE (w); | |
| 3466 | 4393 dim = CURCHARSIZE (w); |
| 3078 | 4394 new_pixsize = inpixels?(*sizep + delta):(dim+delta); |
| 4395 set_window_pixsize (window, new_pixsize, 0, 0); | |
| 4396 return; | |
| 4397 } | |
| 428 | 4398 break; |
| 4399 } | |
| 4400 if (widthflag | |
| 4401 ? !NILP (XWINDOW (parent)->hchild) | |
| 4402 : !NILP (XWINDOW (parent)->vchild)) | |
| 4403 break; | |
| 4404 window = parent; | |
| 4405 } | |
| 4406 | |
| 4407 sizep = &CURSIZE (w); | |
| 4408 dim = CURCHARSIZE (w); | |
| 4409 | |
| 4410 if ((inpixels && (*sizep + delta) < MINSIZE (window)) || | |
| 4411 (!inpixels && (dim + delta) < MINCHARSIZE (window))) | |
| 4412 { | |
| 4413 if (MINI_WINDOW_P (XWINDOW (window))) | |
| 4414 return; | |
| 4415 else if (!NILP (parent)) | |
| 4416 { | |
| 4417 Fdelete_window (window, Qnil); | |
| 4418 return; | |
| 4419 } | |
| 4420 } | |
| 4421 | |
| 4422 if (!inpixels) | |
| 4423 delta *= (widthflag ? defwidth : defheight); | |
| 4424 | |
| 4425 { | |
| 4426 int maxdelta; | |
| 4427 | |
| 4428 maxdelta = ((!NILP (parent)) | |
| 4429 ? (*sizefun) (parent) - *sizep | |
| 4430 : ((!NILP (w->next)) | |
| 4431 ? (*sizefun) (w->next) - MINSIZE (w->next) | |
| 4432 : ((!NILP (w->prev)) | |
| 4433 ? (*sizefun) (w->prev) - MINSIZE (w->prev) | |
| 4434 /* This is a frame with only one window, | |
| 4435 a minibuffer-only or a minibufferless frame. */ | |
| 4436 : (delta = 0)))); | |
| 4437 | |
| 4438 if (delta > maxdelta) | |
| 4439 /* This case traps trying to make the minibuffer | |
| 4440 the full frame, or make the only window aside from the | |
| 4441 minibuffer the full frame. */ | |
| 4442 delta = maxdelta; | |
| 4443 | |
| 4444 if (delta == 0) | |
| 4445 return; | |
| 4446 | |
| 4447 #if 0 /* FSFmacs */ | |
| 4448 /* #### Chuck: is this correct? */ | |
| 4449 if (*sizep + delta < MINSIZE (window)) | |
| 4450 { | |
| 4451 Fdelete_window (window); | |
| 4452 return; | |
| 4453 } | |
| 4454 #endif | |
| 4455 } | |
| 4456 | |
| 4457 if (!NILP (w->next) && | |
| 4458 (*sizefun) (w->next) - delta >= (int) MINSIZE (w->next)) | |
| 4459 { | |
| 4460 CURBEG (XWINDOW (w->next)) += delta; | |
| 4461 (*setsizefun) (w->next, (*sizefun) (w->next) - delta, 0); | |
| 4462 (*setsizefun) (window, *sizep + delta, 0); | |
| 4463 } | |
| 4464 else if (!NILP (w->prev) && | |
| 4465 (*sizefun) (w->prev) - delta >= (int) MINSIZE (w->prev)) | |
| 4466 { | |
| 4467 (*setsizefun) (w->prev, (*sizefun) (w->prev) - delta, 0); | |
| 4468 CURBEG (w) -= delta; | |
| 4469 (*setsizefun) (window, *sizep + delta, 0); | |
| 4470 } | |
| 4471 else | |
| 4472 { | |
| 4473 int delta1; | |
| 4474 int opht = (*sizefun) (parent); | |
| 4475 | |
| 4476 /* If trying to grow this window to or beyond size of the parent, | |
| 4477 make delta1 so big that, on shrinking back down, | |
| 4478 all the siblings end up with less than one line and are deleted. */ | |
| 4479 if (opht <= *sizep + delta) | |
| 4480 delta1 = opht * opht * 2; | |
| 4481 /* Otherwise, make delta1 just right so that if we add delta1 | |
| 4482 lines to this window and to the parent, and then shrink | |
| 4483 the parent back to its original size, the new proportional | |
| 4484 size of this window will increase by delta. */ | |
| 4485 else | |
| 4486 delta1 = (delta * opht * 100) / ((opht - *sizep - delta) * 100); | |
| 4487 | |
| 4488 /* Add delta1 lines or columns to this window, and to the parent, | |
| 4489 keeping things consistent while not affecting siblings. */ | |
| 4490 CURSIZE (XWINDOW (parent)) = opht + delta1; | |
| 4491 (*setsizefun) (window, *sizep + delta1, 0); | |
| 4492 | |
| 4493 /* Squeeze out delta1 lines or columns from our parent, | |
| 4494 shrinking this window and siblings proportionately. | |
| 4495 This brings parent back to correct size. | |
| 4496 Delta1 was calculated so this makes this window the desired size, | |
| 4497 taking it all out of the siblings. */ | |
| 4498 (*setsizefun) (parent, opht, 0); | |
| 4499 } | |
| 4500 | |
| 4501 SET_LAST_MODIFIED (w, 0); | |
| 4502 SET_LAST_FACECHANGE (w); | |
| 4503 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f); | |
| 4504 /* overkill maybe, but better to be correct */ | |
| 4505 MARK_FRAME_GUTTERS_CHANGED (f); | |
| 4506 } | |
| 4507 #undef MINSIZE | |
| 4508 #undef CURBEG | |
| 4509 #undef CURSIZE | |
| 4510 #undef CURCHARSIZE | |
| 4511 #undef MINCHARSIZE | |
| 4512 | |
| 4513 | |
| 4514 | |
| 444 | 4515 /* Scroll contents of window WINDOW up COUNT lines. |
| 4516 If COUNT < (top line height / average line height) then we just adjust | |
| 4517 the top clip. */ | |
| 428 | 4518 void |
| 444 | 4519 window_scroll (Lisp_Object window, Lisp_Object count, int direction, |
| 578 | 4520 Error_Behavior errb) |
| 428 | 4521 { |
| 4522 struct window *w = XWINDOW (window); | |
| 4523 struct buffer *b = XBUFFER (w->buffer); | |
| 4524 int selected = EQ (window, Fselected_window (Qnil)); | |
| 4525 int value = 0; | |
| 4526 Lisp_Object point, tem; | |
| 4527 display_line_dynarr *dla; | |
| 4528 int fheight, fwidth, modeline = 0; | |
| 4529 struct display_line* dl; | |
| 4530 | |
| 4531 if (selected) | |
| 4532 point = make_int (BUF_PT (b)); | |
| 4533 else | |
| 4534 { | |
| 665 | 4535 Charbpos pos = marker_position (w->pointm[CURRENT_DISP]); |
| 428 | 4536 |
| 4537 if (pos < BUF_BEGV (b)) | |
| 4538 pos = BUF_BEGV (b); | |
| 4539 else if (pos > BUF_ZV (b)) | |
| 4540 pos = BUF_ZV (b); | |
| 4541 | |
| 4542 point = make_int (pos); | |
| 4543 } | |
| 4544 | |
| 4545 /* Always set force_start so that redisplay_window will run | |
| 4546 the window-scroll-functions. */ | |
| 4547 w->force_start = 1; | |
| 4548 | |
| 4549 /* #### When the fuck does this happen? I'm so glad that history has | |
| 4550 completely documented the behavior of the scrolling functions under | |
| 4551 all circumstances. */ | |
| 1708 | 4552 tem = Fpos_visible_in_window_p (point, window, Qnil); |
| 428 | 4553 if (NILP (tem)) |
| 4554 { | |
| 4555 Fvertical_motion (make_int (-window_char_height (w, 0) / 2), | |
| 4556 window, Qnil); | |
| 4557 Fset_marker (w->start[CURRENT_DISP], point, w->buffer); | |
| 4558 w->start_at_line_beg = beginning_of_line_p (b, XINT (point)); | |
| 4559 WINDOW_TEXT_TOP_CLIP (w) = 0; | |
| 4560 MARK_WINDOWS_CHANGED (w); | |
| 4561 } | |
| 4562 | |
| 444 | 4563 if (!NILP (count)) |
| 428 | 4564 { |
| 444 | 4565 if (EQ (count, Qminus)) |
| 428 | 4566 direction *= -1; |
| 4567 else | |
| 4568 { | |
| 444 | 4569 count = Fprefix_numeric_value (count); |
| 4570 value = XINT (count) * direction; | |
| 428 | 4571 |
| 4572 if (!value) | |
| 4573 return; /* someone just made a pointless call */ | |
| 4574 } | |
| 4575 } | |
| 4576 | |
| 4577 /* If the user didn't specify how far to scroll then we have to figure it | |
| 4578 out by ourselves. */ | |
| 444 | 4579 if (NILP (count) || EQ (count, Qminus)) |
| 428 | 4580 { |
| 4581 /* Going forwards is easy. If that is what we are doing then just | |
| 4582 set value and the section which handles the user specifying a | |
| 4583 positive value will work. */ | |
| 4584 if (direction == 1) | |
| 4585 { | |
| 4586 value = window_displayed_height (w) - next_screen_context_lines; | |
| 4587 value = (value < 1 ? 1 : value); | |
| 4588 } | |
| 4589 | |
| 4590 /* Going backwards is hard. We can't use the same loop used if the | |
| 4591 user specified a negative value because we care about | |
| 4592 next_screen_context_lines. In a variable height world you don't | |
| 4593 know how many lines above you can actually be displayed and still | |
| 4594 have the context lines appear. So we leave value set to 0 and add | |
| 4595 a separate section to deal with this. */ | |
| 4596 | |
| 4597 } | |
| 4598 | |
| 4599 if (direction == 1 && !value) | |
| 4600 { | |
| 4601 return; | |
| 4602 } | |
| 4603 | |
| 4604 /* Determine parameters to test for partial line scrolling with. */ | |
| 4605 dla = window_display_lines (w, CURRENT_DISP); | |
| 4606 | |
| 4607 if (INTP (Vwindow_pixel_scroll_increment)) | |
| 4608 fheight = XINT (Vwindow_pixel_scroll_increment); | |
| 440 | 4609 else if (!NILP (Vwindow_pixel_scroll_increment)) |
|
5047
07dcc7000bbf
put width before height consistently, fix a real bug found in the process
Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
4610 default_face_width_and_height (window, &fwidth, &fheight); |
| 438 | 4611 |
| 428 | 4612 if (Dynarr_length (dla) >= 1) |
| 4967 | 4613 modeline = Dynarr_begin (dla)->modeline; |
| 428 | 4614 |
| 4615 dl = Dynarr_atp (dla, modeline); | |
| 438 | 4616 |
| 428 | 4617 if (value > 0) |
| 4618 { | |
| 4619 /* Go for partial display line scrolling. This just means bumping | |
| 4620 the clip by a reasonable amount and redisplaying, everything else | |
| 4621 remains unchanged. */ | |
| 4622 if (!NILP (Vwindow_pixel_scroll_increment) | |
| 4623 && | |
| 4624 Dynarr_length (dla) >= (1 + modeline) | |
| 4625 && | |
| 458 | 4626 (dl->ascent - dl->top_clip) > fheight * value) |
| 428 | 4627 { |
| 4628 WINDOW_TEXT_TOP_CLIP (w) += value * fheight; | |
| 4629 MARK_WINDOWS_CHANGED (w); | |
| 4630 } | |
| 4631 else | |
| 4632 { | |
| 4633 int vtarget; | |
| 665 | 4634 Charbpos startp, old_start; |
| 438 | 4635 |
| 428 | 4636 if (WINDOW_TEXT_TOP_CLIP (w)) |
| 4637 { | |
| 4638 WINDOW_TEXT_TOP_CLIP (w) = 0; | |
| 4639 MARK_WINDOWS_CHANGED (w); | |
| 4640 } | |
| 4641 | |
| 4642 old_start = marker_position (w->start[CURRENT_DISP]); | |
| 4643 startp = vmotion (w, old_start, value, &vtarget); | |
| 438 | 4644 |
| 428 | 4645 if (vtarget < value && |
| 4646 (w->window_end_pos[CURRENT_DISP] == -1 | |
| 4647 || (BUF_Z (b) - w->window_end_pos[CURRENT_DISP] > BUF_ZV (b)))) | |
| 4648 { | |
| 563 | 4649 maybe_signal_error_1 (Qend_of_buffer, Qnil, Qwindow, errb); |
| 428 | 4650 return; |
| 4651 } | |
| 4652 else | |
| 4653 { | |
| 4654 set_marker_restricted (w->start[CURRENT_DISP], make_int (startp), | |
| 4655 w->buffer); | |
| 4656 w->force_start = 1; | |
| 4657 w->start_at_line_beg = beginning_of_line_p (b, startp); | |
| 4658 MARK_WINDOWS_CHANGED (w); | |
| 438 | 4659 |
| 1708 | 4660 if (!point_would_be_visible (w, startp, XINT (point), 0)) |
| 844 | 4661 Fset_window_point (wrap_window (w), make_int (startp)); |
| 428 | 4662 } |
| 4663 } | |
| 4664 } | |
| 4665 else if (value < 0) | |
| 4666 { | |
| 4667 /* Go for partial display line scrolling. This just means bumping | |
| 4668 the clip by a reasonable amount and redisplaying, everything else | |
| 4669 remains unchanged. */ | |
| 4670 if (!NILP (Vwindow_pixel_scroll_increment) | |
| 4671 && | |
| 4672 Dynarr_length (dla) >= (1 + modeline) | |
| 4673 && | |
| 4674 (dl->ascent - dl->top_clip) - fheight * value < | |
| 4675 (dl->ascent + dl->descent - dl->clip) | |
| 4676 && | |
| 4677 WINDOW_TEXT_TOP_CLIP (w) + value * fheight > 0) | |
| 4678 { | |
| 4679 WINDOW_TEXT_TOP_CLIP (w) += value * fheight; | |
| 4680 MARK_WINDOWS_CHANGED (w); | |
| 4681 } | |
| 4682 else | |
| 4683 { | |
| 4684 int vtarget; | |
| 665 | 4685 Charbpos startp, old_start; |
| 438 | 4686 |
| 428 | 4687 if (WINDOW_TEXT_TOP_CLIP (w)) |
| 4688 { | |
| 4689 WINDOW_TEXT_TOP_CLIP (w) = 0; | |
| 4690 MARK_WINDOWS_CHANGED (w); | |
| 4691 } | |
| 438 | 4692 |
| 428 | 4693 old_start = marker_position (w->start[CURRENT_DISP]); |
| 4694 startp = vmotion (w, old_start, value, &vtarget); | |
| 438 | 4695 |
| 428 | 4696 if (vtarget > value |
| 4697 && marker_position (w->start[CURRENT_DISP]) == BUF_BEGV (b)) | |
| 4698 { | |
| 563 | 4699 maybe_signal_error_1 (Qbeginning_of_buffer, Qnil, Qwindow, errb); |
| 428 | 4700 return; |
| 4701 } | |
| 4702 else | |
| 4703 { | |
| 4704 set_marker_restricted (w->start[CURRENT_DISP], make_int (startp), | |
| 4705 w->buffer); | |
| 4706 w->force_start = 1; | |
| 4707 w->start_at_line_beg = beginning_of_line_p (b, startp); | |
| 4708 MARK_WINDOWS_CHANGED (w); | |
| 438 | 4709 |
| 440 | 4710 /* #### Scroll back by less than a line. This code was |
| 4711 originally for scrolling over large pixmaps and it | |
| 4712 loses when a line being *exposed* at the top of the | |
| 4713 window is bigger than the current one. However, for | |
| 4714 pixel based scrolling in general we can guess that | |
| 4715 the line we are going to display is probably the same | |
| 4716 size as the one we are on. In that instance we can | |
| 4717 have a reasonable stab at a suitable top clip. Fixing | |
| 4718 this properly is hard (and probably slow) as we would | |
| 4719 have to call redisplay to figure out the exposed line | |
| 4720 size. */ | |
| 4721 if (!NILP (Vwindow_pixel_scroll_increment) | |
| 4722 && Dynarr_length (dla) >= (1 + modeline) | |
| 4723 && dl->ascent + fheight * value > 0) | |
| 4724 { | |
| 4725 WINDOW_TEXT_TOP_CLIP (w) = (dl->ascent + fheight * value); | |
| 4726 } | |
| 4727 | |
| 1708 | 4728 if (!point_would_be_visible (w, startp, XINT (point), 0)) |
| 428 | 4729 { |
| 665 | 4730 Charbpos new_point; |
| 438 | 4731 |
| 428 | 4732 if (MINI_WINDOW_P (w)) |
| 4733 new_point = startp; | |
| 4734 else | |
| 4735 new_point = start_of_last_line (w, startp); | |
| 438 | 4736 |
| 844 | 4737 Fset_window_point (wrap_window (w), make_int (new_point)); |
| 428 | 4738 } |
| 4739 } | |
| 4740 } | |
| 4741 } | |
| 4742 else /* value == 0 && direction == -1 */ | |
| 4743 { | |
| 4744 if (WINDOW_TEXT_TOP_CLIP (w)) | |
| 4745 { | |
| 4746 WINDOW_TEXT_TOP_CLIP (w) = 0; | |
| 4747 MARK_WINDOWS_CHANGED (w); | |
| 4748 } | |
| 4749 if (marker_position (w->start[CURRENT_DISP]) == BUF_BEGV (b)) | |
| 4750 { | |
| 563 | 4751 maybe_signal_error_1 (Qbeginning_of_buffer, Qnil, Qwindow, errb); |
| 428 | 4752 return; |
| 4753 } | |
| 4754 else | |
| 4755 { | |
| 4756 int vtarget; | |
| 4757 int movement = next_screen_context_lines - 1; | |
| 665 | 4758 Charbpos old_startp = marker_position (w->start[CURRENT_DISP]); |
| 4759 Charbpos bottom = vmotion (w, old_startp, movement, &vtarget); | |
| 4760 Charbpos startp = | |
| 428 | 4761 start_with_point_on_display_line (w, bottom, |
| 4762 -1 - (movement - vtarget)); | |
| 4763 | |
| 4764 if (startp >= old_startp) | |
| 4765 startp = vmotion (w, old_startp, -1, NULL); | |
| 4766 | |
| 4767 set_marker_restricted (w->start[CURRENT_DISP], make_int (startp), | |
| 4768 w->buffer); | |
| 4769 w->force_start = 1; | |
| 4770 w->start_at_line_beg = beginning_of_line_p (b, startp); | |
| 4771 MARK_WINDOWS_CHANGED (w); | |
| 4772 | |
| 1708 | 4773 if (!point_would_be_visible (w, startp, XINT (point), 0)) |
| 428 | 4774 { |
| 665 | 4775 Charbpos new_point = start_of_last_line (w, startp); |
| 428 | 4776 |
| 844 | 4777 Fset_window_point (wrap_window (w), make_int (new_point)); |
| 428 | 4778 } |
| 4779 } | |
| 4780 } | |
| 4781 } | |
| 4782 | |
| 4783 DEFUN ("scroll-up", Fscroll_up, 0, 1, "_P", /* | |
| 444 | 4784 Scroll text of current window up COUNT lines; or near full screen if no arg. |
| 428 | 4785 A near full screen is `next-screen-context-lines' less than a full screen. |
| 444 | 4786 Negative COUNT means scroll downward. |
| 428 | 4787 When calling from a program, supply an integer as argument or nil. |
| 4788 On attempt to scroll past end of buffer, `end-of-buffer' is signaled. | |
| 4789 On attempt to scroll past beginning of buffer, `beginning-of-buffer' is | |
| 4790 signaled. | |
| 462 | 4791 |
| 4792 The characters that are moved over may be added to the current selection | |
| 4793 \(i.e. active region) if the Shift key is held down, a motion key is used | |
| 4794 to invoke this command, and `shifted-motion-keys-select-region' is t; see | |
| 4795 the documentation for this variable for more details. | |
| 428 | 4796 */ |
| 444 | 4797 (count)) |
| 4798 { | |
| 4799 window_scroll (Fselected_window (Qnil), count, 1, ERROR_ME); | |
| 428 | 4800 return Qnil; |
| 4801 } | |
| 4802 | |
| 4803 DEFUN ("scroll-down", Fscroll_down, 0, 1, "_P", /* | |
| 444 | 4804 Scroll text of current window down COUNT lines; or near full screen if no arg. |
| 428 | 4805 A near full screen is `next-screen-context-lines' less than a full screen. |
| 444 | 4806 Negative COUNT means scroll upward. |
| 428 | 4807 When calling from a program, supply a number as argument or nil. |
| 4808 On attempt to scroll past end of buffer, `end-of-buffer' is signaled. | |
| 4809 On attempt to scroll past beginning of buffer, `beginning-of-buffer' is | |
| 4810 signaled. | |
| 462 | 4811 |
| 4812 The characters that are moved over may be added to the current selection | |
| 4813 \(i.e. active region) if the Shift key is held down, a motion key is used | |
| 4814 to invoke this command, and `shifted-motion-keys-select-region' is t; see | |
| 4815 the documentation for this variable for more details. | |
| 428 | 4816 */ |
| 444 | 4817 (count)) |
| 4818 { | |
| 4819 window_scroll (Fselected_window (Qnil), count, -1, ERROR_ME); | |
| 428 | 4820 return Qnil; |
| 4821 } | |
| 4822 | |
| 4823 DEFUN ("other-window-for-scrolling", Fother_window_for_scrolling, 0, 0, 0, /* | |
| 4824 Return the other window for "other window scroll" commands. | |
| 4825 If in the minibuffer, `minibuffer-scroll-window' if non-nil | |
| 4826 specifies the window. | |
| 4827 If `other-window-scroll-buffer' is non-nil, a window | |
| 4828 showing that buffer is used. | |
| 4829 */ | |
| 4830 ()) | |
| 4831 { | |
| 4832 Lisp_Object window; | |
| 4833 Lisp_Object selected_window = Fselected_window (Qnil); | |
| 4834 | |
| 4835 if (MINI_WINDOW_P (XWINDOW (selected_window)) | |
| 4836 && !NILP (Vminibuffer_scroll_window)) | |
| 4837 window = Vminibuffer_scroll_window; | |
| 4838 /* If buffer is specified, scroll that buffer. */ | |
| 4839 else if (!NILP (Vother_window_scroll_buffer)) | |
| 4840 { | |
| 4841 window = Fget_buffer_window (Vother_window_scroll_buffer, Qnil, Qnil); | |
| 4842 if (NILP (window)) | |
| 4843 window = display_buffer (Vother_window_scroll_buffer, Qt, Qnil); | |
| 4844 } | |
| 4845 else | |
| 4846 { | |
| 4847 /* Nothing specified; look for a neighboring window on the same | |
| 4848 frame. */ | |
| 4849 window = Fnext_window (selected_window, Qnil, Qnil, Qnil); | |
| 4850 | |
| 4851 if (EQ (window, selected_window)) | |
| 4852 /* That didn't get us anywhere; look for a window on another | |
| 4853 visible frame. */ | |
| 4854 do | |
| 4855 window = Fnext_window (window, Qnil, Qt, Qnil); | |
| 4856 while (! FRAME_VISIBLE_P (XFRAME (WINDOW_FRAME (XWINDOW (window)))) | |
| 4857 && ! EQ (window, selected_window)); | |
| 4858 } | |
| 4859 | |
| 4860 CHECK_LIVE_WINDOW (window); | |
| 4861 | |
| 4862 if (EQ (window, selected_window)) | |
| 563 | 4863 invalid_operation ("There is no other window", Qunbound); |
| 428 | 4864 |
| 4865 return window; | |
| 4866 } | |
| 4867 | |
| 4868 DEFUN ("scroll-other-window", Fscroll_other_window, 0, 1, "_P", /* | |
| 444 | 4869 Scroll next window upward COUNT lines; or near full frame if no arg. |
| 428 | 4870 The next window is the one below the current one; or the one at the top |
| 444 | 4871 if the current one is at the bottom. Negative COUNT means scroll downward. |
| 428 | 4872 When calling from a program, supply a number as argument or nil. |
| 4873 | |
| 4874 If in the minibuffer, `minibuffer-scroll-window' if non-nil | |
| 4875 specifies the window to scroll. | |
| 4876 If `other-window-scroll-buffer' is non-nil, scroll the window | |
| 4877 showing that buffer, popping the buffer up if necessary. | |
| 4878 */ | |
| 444 | 4879 (count)) |
| 4880 { | |
| 4881 window_scroll (Fother_window_for_scrolling (), count, 1, ERROR_ME); | |
| 428 | 4882 return Qnil; |
| 4883 } | |
| 4884 | |
| 4885 DEFUN ("scroll-left", Fscroll_left, 0, 1, "_P", /* | |
| 444 | 4886 Scroll selected window display COUNT columns left. |
| 4887 Default for COUNT is window width minus 2. | |
| 462 | 4888 |
| 4889 The characters that are moved over may be added to the current selection | |
| 4890 \(i.e. active region) if the Shift key is held down, a motion key is used | |
| 4891 to invoke this command, and `shifted-motion-keys-select-region' is t; see | |
| 4892 the documentation for this variable for more details. | |
| 428 | 4893 */ |
| 444 | 4894 (count)) |
| 428 | 4895 { |
| 4896 Lisp_Object window = Fselected_window (Qnil); | |
| 4897 struct window *w = XWINDOW (window); | |
| 444 | 4898 int n = (NILP (count) ? |
| 4899 window_char_width (w, 0) - 2 : | |
| 4900 XINT (Fprefix_numeric_value (count))); | |
| 4901 | |
| 4902 return Fset_window_hscroll (window, make_int (w->hscroll + n)); | |
| 428 | 4903 } |
| 4904 | |
| 4905 DEFUN ("scroll-right", Fscroll_right, 0, 1, "_P", /* | |
| 444 | 4906 Scroll selected window display COUNT columns right. |
| 4907 Default for COUNT is window width minus 2. | |
| 462 | 4908 |
| 4909 The characters that are moved over may be added to the current selection | |
| 4910 \(i.e. active region) if the Shift key is held down, a motion key is used | |
| 4911 to invoke this command, and `shifted-motion-keys-select-region' is t; see | |
| 4912 the documentation for this variable for more details. | |
| 428 | 4913 */ |
| 444 | 4914 (count)) |
| 428 | 4915 { |
| 4916 Lisp_Object window = Fselected_window (Qnil); | |
| 4917 struct window *w = XWINDOW (window); | |
| 444 | 4918 int n = (NILP (count) ? |
| 4919 window_char_width (w, 0) - 2 : | |
| 4920 XINT (Fprefix_numeric_value (count))); | |
| 4921 | |
| 4922 return Fset_window_hscroll (window, make_int (w->hscroll - n)); | |
| 428 | 4923 } |
| 4924 | |
| 4925 DEFUN ("center-to-window-line", Fcenter_to_window_line, 0, 2, "_P", /* | |
| 4926 Center point in WINDOW. With N, put point on line N. | |
| 4927 The desired position of point is always relative to the window. | |
| 4928 If WINDOW is nil, the selected window is used. | |
| 4929 */ | |
| 4930 (n, window)) | |
| 4931 { | |
| 4932 struct window *w = decode_window (window); | |
| 4933 struct buffer *b = XBUFFER (w->buffer); | |
| 665 | 4934 Charbpos opoint = BUF_PT (b); |
| 4935 Charbpos startp; | |
| 428 | 4936 |
| 4937 if (NILP (n)) | |
| 4938 startp = start_with_line_at_pixpos (w, opoint, window_half_pixpos (w)); | |
| 4939 else | |
| 4940 { | |
| 4941 n = Fprefix_numeric_value (n); | |
| 4942 CHECK_INT (n); | |
| 4943 startp = start_with_point_on_display_line (w, opoint, XINT (n)); | |
| 4944 } | |
| 4945 | |
| 4946 Fset_marker (w->start[CURRENT_DISP], make_int (startp), w->buffer); | |
| 4947 | |
| 4948 w->start_at_line_beg = beginning_of_line_p (b, startp); | |
| 4949 w->force_start = 1; | |
| 4950 MARK_WINDOWS_CHANGED (w); | |
| 4951 return Qnil; | |
| 4952 } | |
| 4953 | |
| 4954 DEFUN ("move-to-window-line", Fmove_to_window_line, 1, 2, "_P", /* | |
| 4955 Position point relative to WINDOW. | |
| 4956 With no argument, position text at center of window. | |
| 4957 An argument specifies window line; zero means top of window, | |
| 4958 negative means relative to bottom of window. | |
| 4959 If WINDOW is nil, the selected window is used. | |
| 4960 */ | |
| 4961 (arg, window)) | |
| 4962 { | |
| 4963 struct window *w; | |
| 4964 struct buffer *b; | |
| 4965 int height; | |
| 665 | 4966 Charbpos start, new_point; |
| 428 | 4967 int selected; |
| 4968 | |
| 4969 /* Don't use decode_window() because we need the new value of | |
| 4970 WINDOW. */ | |
| 4971 if (NILP (window)) | |
| 4972 window = Fselected_window (Qnil); | |
| 4973 else | |
| 4974 CHECK_LIVE_WINDOW (window); | |
| 4975 w = XWINDOW (window); | |
| 4976 b = XBUFFER (w->buffer); | |
| 4977 | |
| 4978 height = window_displayed_height (w); | |
| 4979 selected = EQ (window, Fselected_window (w->frame)); | |
| 4980 | |
| 4981 if (NILP (arg)) | |
| 4982 { | |
| 4983 int retval; | |
| 4984 | |
| 4985 if (XINT (w->last_modified[CURRENT_DISP]) >= BUF_MODIFF (b) | |
| 4986 && XINT (w->last_facechange[CURRENT_DISP]) >= BUF_FACECHANGE (b)) | |
| 4987 { | |
| 4988 new_point = point_at_center (w, CURRENT_DISP, 0, 0); | |
| 4989 | |
| 844 | 4990 /* #### Here we are checking the selected window of the frame |
| 4991 instead of the selected window period. Elsewhere we check | |
| 4992 the selected window of the device. What a mess! */ | |
| 428 | 4993 if (selected) |
| 4994 BUF_SET_PT (b, new_point); | |
| 4995 else | |
| 4996 Fset_window_point (window, make_int (new_point)); | |
| 4997 | |
| 4998 retval = line_at_center (w, CURRENT_DISP, 0, 0); | |
| 4999 } | |
| 5000 else | |
| 5001 { | |
| 5002 start = marker_position (w->start[CURRENT_DISP]); | |
| 5003 if (start < BUF_BEGV (b)) | |
| 5004 start = BUF_BEGV (b); | |
| 5005 else if (start > BUF_ZV (b)) | |
| 5006 start = BUF_ZV (b); | |
| 5007 | |
| 5008 if (selected) | |
| 5009 new_point = BUF_PT (b); | |
| 5010 else | |
| 5011 new_point = marker_position (w->pointm[CURRENT_DISP]); | |
| 5012 | |
| 5013 new_point = point_at_center (w, CMOTION_DISP, start, BUF_PT (b)); | |
| 5014 | |
| 5015 if (selected) | |
| 5016 BUF_SET_PT (b, new_point); | |
| 5017 else | |
| 5018 Fset_window_point (window, make_int (new_point)); | |
| 5019 | |
| 5020 retval = line_at_center (w, CMOTION_DISP, start, BUF_PT (b)); | |
| 5021 } | |
| 5022 | |
| 5023 return make_int (retval); | |
| 5024 } | |
| 5025 else | |
| 5026 { | |
| 5027 /* #### Is this going to work right when at eob? */ | |
| 5028 arg = Fprefix_numeric_value (arg); | |
| 5029 if (XINT (arg) < 0) | |
| 793 | 5030 arg = make_int (XINT (arg) + height); |
| 428 | 5031 } |
| 5032 | |
| 5033 start = marker_position (w->start[CURRENT_DISP]); | |
| 5034 if (start < BUF_BEGV (b) || start > BUF_ZV (b)) | |
| 5035 { | |
| 5036 if (selected) | |
| 5037 new_point = BUF_PT (b); | |
| 5038 else | |
| 5039 new_point = marker_position (w->pointm[CURRENT_DISP]); | |
| 5040 | |
| 5041 new_point = vmotion (XWINDOW (window), new_point, -height / 2, 0); | |
| 5042 | |
| 5043 if (selected) | |
| 5044 BUF_SET_PT (b, new_point); | |
| 5045 else | |
| 5046 Fset_window_point (window, make_int (new_point)); | |
| 5047 | |
| 5048 Fset_marker (w->start[CURRENT_DISP], make_int (new_point), | |
| 5049 w->buffer); | |
| 5050 w->start_at_line_beg = beginning_of_line_p (b, new_point); | |
| 5051 w->force_start = 1; | |
| 5052 } | |
| 5053 else | |
| 5054 { | |
| 5055 if (selected) | |
| 5056 BUF_SET_PT (b, start); | |
| 5057 else | |
| 5058 Fset_window_point (window, make_int (start)); | |
| 5059 } | |
| 5060 | |
| 5061 if (selected) | |
| 5062 return Fvertical_motion (arg, window, Qnil); | |
| 5063 else | |
| 5064 { | |
| 5065 int vpos; | |
| 5066 new_point = vmotion (XWINDOW (window), | |
| 5067 marker_position (w->pointm[CURRENT_DISP]), | |
| 5068 XINT (arg), &vpos); | |
| 5069 Fset_window_point (window, make_int (new_point)); | |
| 5070 return make_int (vpos); | |
| 5071 } | |
| 5072 } | |
| 5073 | |
| 5074 | |
| 5075 static int | |
| 5076 map_windows_1 (Lisp_Object window, | |
| 5077 int (*mapfun) (struct window *w, void *closure), | |
| 5078 void *closure) | |
| 5079 { | |
| 5080 for (; !NILP (window); window = XWINDOW (window)->next) | |
| 5081 { | |
| 5082 int retval; | |
| 5083 struct window *w = XWINDOW (window); | |
| 5084 | |
| 5085 if (!NILP (w->vchild)) | |
| 5086 retval = map_windows_1 (w->vchild, mapfun, closure); | |
| 5087 else if (!NILP (w->hchild)) | |
| 5088 retval = map_windows_1 (w->hchild, mapfun, closure); | |
| 5089 else | |
| 5090 retval = (mapfun) (w, closure); | |
| 5091 | |
| 5092 if (retval) | |
| 5093 return retval; | |
| 5094 } | |
| 5095 | |
| 5096 return 0; | |
| 5097 } | |
| 5098 | |
| 5099 /* Map MAPFUN over the windows in F. CLOSURE is passed to each | |
| 5100 invocation of MAPFUN. If any invocation of MAPFUN returns | |
| 5101 non-zero, the mapping is halted. Otherwise, map_windows() maps | |
| 5102 over all windows in F. | |
| 5103 | |
| 800 | 5104 If F is null, map over all frames on all devices and consoles. |
| 5105 | |
| 428 | 5106 If MAPFUN creates or deletes windows, the behavior is undefined. */ |
| 5107 | |
| 5108 int | |
| 5109 map_windows (struct frame *f, int (*mapfun) (struct window *w, void *closure), | |
| 5110 void *closure) | |
| 5111 { | |
| 5112 if (f) | |
| 5113 return map_windows_1 (FRAME_ROOT_WINDOW (f), mapfun, closure); | |
| 5114 else | |
| 5115 { | |
| 5116 Lisp_Object frmcons, devcons, concons; | |
| 5117 | |
| 5118 FRAME_LOOP_NO_BREAK(frmcons, devcons, concons) | |
| 5119 { | |
| 5120 int v = map_windows_1 (FRAME_ROOT_WINDOW (XFRAME (XCAR (frmcons))), | |
| 5121 mapfun, closure); | |
| 5122 if (v) | |
| 5123 return v; | |
| 5124 } | |
| 5125 } | |
| 5126 | |
| 5127 return 0; | |
| 5128 } | |
| 5129 | |
| 5130 | |
| 5131 static void | |
| 2286 | 5132 modeline_shadow_thickness_changed (Lisp_Object UNUSED (specifier), |
| 5133 struct window *w, | |
| 5134 Lisp_Object UNUSED (oldval)) | |
| 428 | 5135 { |
| 5136 w->shadow_thickness_changed = 1; | |
| 5137 MARK_WINDOWS_CHANGED (w); | |
| 5138 } | |
| 5139 | |
| 5140 static void | |
| 2286 | 5141 vertical_divider_changed_in_window (Lisp_Object UNUSED (specifier), |
| 428 | 5142 struct window *w, |
| 2286 | 5143 Lisp_Object UNUSED (oldval)) |
| 428 | 5144 { |
| 5145 MARK_WINDOWS_CHANGED (w); | |
| 5146 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (XFRAME (WINDOW_FRAME (w))); | |
| 5147 } | |
| 5148 | |
| 5149 /* also used in scrollbar.c */ | |
| 5150 void | |
| 2286 | 5151 some_window_value_changed (Lisp_Object UNUSED (specifier), |
| 5152 struct window *w, | |
| 5153 Lisp_Object UNUSED (oldval)) | |
| 428 | 5154 { |
| 5155 MARK_WINDOWS_CHANGED (w); | |
| 5156 } | |
| 5157 | |
| 5158 #ifdef MEMORY_USAGE_STATS | |
| 5159 | |
| 5160 struct window_stats | |
| 5161 { | |
| 5162 int face; | |
| 5163 int glyph; | |
| 5164 #ifdef HAVE_SCROLLBARS | |
| 5165 int scrollbar; | |
| 5166 #endif | |
| 5167 int line_start; | |
| 5168 int other_redisplay; | |
| 5169 int other; | |
| 5170 }; | |
| 5171 | |
| 5172 static void | |
| 5173 compute_window_mirror_usage (struct window_mirror *mir, | |
| 5174 struct window_stats *stats, | |
| 5175 struct overhead_stats *ovstats) | |
| 5176 { | |
| 5177 if (!mir) | |
| 5178 return; | |
|
5127
a9c41067dd88
more cleanups, terminology clarification, lots of doc work
Ben Wing <ben@xemacs.org>
parents:
5126
diff
changeset
|
5179 stats->other += lisp_object_storage_size (wrap_window_mirror (mir), ovstats); |
| 428 | 5180 #ifdef HAVE_SCROLLBARS |
| 5181 { | |
| 5182 struct device *d = XDEVICE (FRAME_DEVICE (mir->frame)); | |
| 5183 | |
| 5184 stats->scrollbar += | |
| 5185 compute_scrollbar_instance_usage (d, mir->scrollbar_vertical_instance, | |
| 5186 ovstats); | |
| 5187 stats->scrollbar += | |
| 5188 compute_scrollbar_instance_usage (d, mir->scrollbar_horizontal_instance, | |
| 5189 ovstats); | |
| 5190 } | |
| 5191 #endif /* HAVE_SCROLLBARS */ | |
| 5192 stats->other_redisplay += | |
| 5193 compute_display_line_dynarr_usage (mir->current_display_lines, ovstats); | |
| 5194 stats->other_redisplay += | |
| 5195 compute_display_line_dynarr_usage (mir->desired_display_lines, ovstats); | |
| 5196 } | |
| 5197 | |
| 5198 static void | |
| 5199 compute_window_usage (struct window *w, struct window_stats *stats, | |
| 5200 struct overhead_stats *ovstats) | |
| 5201 { | |
| 5202 xzero (*stats); | |
|
5127
a9c41067dd88
more cleanups, terminology clarification, lots of doc work
Ben Wing <ben@xemacs.org>
parents:
5126
diff
changeset
|
5203 stats->other += lisp_object_storage_size (wrap_window (w), ovstats); |
| 428 | 5204 stats->face += compute_face_cachel_usage (w->face_cachels, ovstats); |
| 5205 stats->glyph += compute_glyph_cachel_usage (w->glyph_cachels, ovstats); | |
| 5206 stats->line_start += | |
| 5207 compute_line_start_cache_dynarr_usage (w->line_start_cache, ovstats); | |
| 5208 compute_window_mirror_usage (find_window_mirror (w), stats, ovstats); | |
| 5209 } | |
| 5210 | |
| 5211 DEFUN ("window-memory-usage", Fwindow_memory_usage, 1, 1, 0, /* | |
| 5212 Return stats about the memory usage of window WINDOW. | |
| 5213 The values returned are in the form of an alist of usage types and byte | |
| 5214 counts. The byte counts attempt to encompass all the memory used | |
| 5215 by the window (separate from the memory logically associated with a | |
| 5216 buffer or frame), including internal structures and any malloc() | |
| 5217 overhead associated with them. In practice, the byte counts are | |
| 5218 underestimated because certain memory usage is very hard to determine | |
| 5219 \(e.g. the amount of memory used inside the Xt library or inside the | |
| 5220 X server) and because there is other stuff that might logically | |
| 5221 be associated with a window, buffer, or frame (e.g. window configurations, | |
| 5222 glyphs) but should not obviously be included in the usage counts. | |
| 5223 | |
| 5224 Multiple slices of the total memory usage may be returned, separated | |
| 5225 by a nil. Each slice represents a particular view of the memory, a | |
| 5226 particular way of partitioning it into groups. Within a slice, there | |
| 5227 is no overlap between the groups of memory, and each slice collectively | |
| 5228 represents all the memory concerned. | |
| 5229 */ | |
| 5230 (window)) | |
| 5231 { | |
| 5232 struct window_stats stats; | |
| 5233 struct overhead_stats ovstats; | |
| 5234 Lisp_Object val = Qnil; | |
| 5235 | |
| 5236 CHECK_WINDOW (window); /* dead windows should be allowed, no? */ | |
| 5237 xzero (ovstats); | |
| 5238 compute_window_usage (XWINDOW (window), &stats, &ovstats); | |
| 5239 | |
| 5240 val = acons (Qface_cache, make_int (stats.face), val); | |
| 5241 val = acons (Qglyph_cache, make_int (stats.glyph), val); | |
| 5242 #ifdef HAVE_SCROLLBARS | |
| 5243 val = acons (Qscrollbar_instances, make_int (stats.scrollbar), val); | |
| 5244 #endif | |
| 5245 val = acons (Qline_start_cache, make_int (stats.line_start), val); | |
| 5246 val = acons (Qother_redisplay, make_int (stats.other_redisplay), val); | |
| 5247 val = acons (Qother, make_int (stats.other), val); | |
| 5248 val = Fcons (Qnil, val); | |
| 5249 val = acons (Qactually_requested, make_int (ovstats.was_requested), val); | |
| 5250 val = acons (Qmalloc_overhead, make_int (ovstats.malloc_overhead), val); | |
| 5251 val = acons (Qdynarr_overhead, make_int (ovstats.dynarr_overhead), val); | |
| 5252 | |
| 5253 return Fnreverse (val); | |
| 5254 } | |
| 5255 | |
| 5256 #endif /* MEMORY_USAGE_STATS */ | |
| 5257 | |
| 5258 /* Mark all subwindows of a window as deleted. The argument | |
| 5259 W is actually the subwindow tree of the window in question. */ | |
| 5260 | |
| 5261 void | |
| 5262 delete_all_subwindows (struct window *w) | |
| 5263 { | |
| 5264 if (!NILP (w->next)) delete_all_subwindows (XWINDOW (w->next)); | |
| 5265 if (!NILP (w->vchild)) delete_all_subwindows (XWINDOW (w->vchild)); | |
| 5266 if (!NILP (w->hchild)) delete_all_subwindows (XWINDOW (w->hchild)); | |
| 5267 | |
| 5268 mark_window_as_deleted (w); | |
| 5269 } | |
| 5270 | |
| 1149 | 5271 |
| 2289 | 5272 static int |
| 5273 get_current_pixel_pos (Lisp_Object window, Lisp_Object pos, | |
| 5274 struct window **w, | |
| 5275 struct rune **rb, struct display_line **dl) | |
| 428 | 5276 { |
| 2289 | 5277 display_line_dynarr *dla; |
| 5278 struct display_block *db = NULL; | |
| 5279 int x, y; | |
| 5280 | |
| 5281 *rb = NULL; | |
| 5282 *dl = NULL; | |
| 5283 *w = decode_window (window); | |
| 5284 dla = window_display_lines (*w, CURRENT_DISP); | |
| 5285 x = (*w)->last_point_x[CURRENT_DISP]; | |
| 5286 y = (*w)->last_point_y[CURRENT_DISP]; | |
| 5287 if (MINI_WINDOW_P (*w)) | |
| 5288 return 0; | |
| 428 | 5289 |
| 5290 if (y<0 || x<0 || y >= Dynarr_length (dla) || !NILP (pos)) | |
| 5291 { | |
| 5292 int first_line, i; | |
| 665 | 5293 Charbpos point; |
| 428 | 5294 |
| 5295 if (NILP (pos)) | |
| 5296 pos = Fwindow_point (window); | |
| 438 | 5297 |
| 428 | 5298 CHECK_INT (pos); |
| 5299 point = XINT (pos); | |
| 5300 | |
| 4967 | 5301 if (Dynarr_length (dla) && Dynarr_begin (dla)->modeline) |
| 428 | 5302 first_line = 1; |
| 5303 else | |
| 5304 first_line = 0; | |
| 5305 | |
| 5306 for (i = first_line; i < Dynarr_length (dla); i++) | |
| 5307 { | |
| 2289 | 5308 *dl = Dynarr_atp (dla, i); |
| 428 | 5309 /* find the vertical location first */ |
| 2289 | 5310 if (point >= (*dl)->charpos && point <= (*dl)->end_charpos) |
| 428 | 5311 { |
| 2289 | 5312 db = get_display_block_from_line (*dl, TEXT); |
| 428 | 5313 for (i = 0; i < Dynarr_length (db->runes); i++) |
| 5314 { | |
| 2289 | 5315 *rb = Dynarr_atp (db->runes, i); |
| 2290 | 5316 if (point <= (*rb)->charpos) |
| 826 | 5317 goto found_charpos; |
| 428 | 5318 } |
| 2289 | 5319 return 0; |
| 428 | 5320 } |
| 5321 } | |
| 2289 | 5322 return 0; |
| 826 | 5323 found_charpos: |
| 428 | 5324 ; |
| 5325 } | |
| 5326 else | |
| 5327 { | |
| 442 | 5328 /* optimized case */ |
| 2289 | 5329 *dl = Dynarr_atp (dla, y); |
| 5330 db = get_display_block_from_line (*dl, TEXT); | |
| 428 | 5331 |
| 5332 if (x >= Dynarr_length (db->runes)) | |
| 2289 | 5333 return 0; |
| 5334 | |
| 5335 *rb = Dynarr_atp (db->runes, x); | |
| 428 | 5336 } |
| 5337 | |
| 2289 | 5338 return 1; |
| 5339 } | |
| 5340 | |
| 5341 DEFUN ("current-pixel-column", Fcurrent_pixel_column, 0, 2, 0, /* | |
| 5342 Return the horizontal pixel position of point POS in window. | |
| 5343 Beginning of line is column 0. If WINDOW is nil, the current window | |
| 5344 is assumed. If POS is nil, point is assumed. Note that POS must be | |
| 5345 visible for a non-nil result to be returned. This is calculated using | |
| 5346 the redisplay display tables; because of this, the returned value will | |
| 5347 only be correct if the redisplay tables are up-to-date. Use | |
| 5348 \"(sit-for 0)\" to insure that they are; however, if WINDOW is part of | |
| 5349 a new frame, use the following instead: | |
| 5350 (while (not (frame-visible-p frame)) (sleep-for .5)) | |
| 5351 */ | |
| 5352 (window, pos)) | |
| 5353 { | |
| 5354 struct window* w; | |
| 5355 struct display_line *dl; | |
| 5356 struct rune* rb; | |
| 5357 | |
| 5358 if (!get_current_pixel_pos(window, pos, &w, &rb, &dl)) | |
| 5359 return Qnil; | |
| 5360 | |
| 428 | 5361 return make_int (rb->xpos - WINDOW_LEFT (w)); |
| 5362 } | |
| 5363 | |
| 2289 | 5364 DEFUN ("current-pixel-row", Fcurrent_pixel_row, 0, 2, 0, /* |
| 5365 Return the vertical pixel position of point POS in window. Top of | |
| 5366 window is row 0. If WINDOW is nil, the current window is assumed. If | |
| 5367 POS is nil, point is assumed. Note that POS must be visible for a | |
| 5368 non-nil result to be returned. This is calculated using the redisplay | |
| 5369 display tables; because of this, the returned value will only be | |
| 5370 correct if the redisplay tables are up-to-date. Use \"(sit-for 0)\" | |
| 5371 to insure that they are; however, if WINDOW is part of a new frame, | |
| 5372 use the following instead: | |
| 5373 (while (not (frame-visible-p frame)) (sleep-for .5)) | |
| 5374 */ | |
| 5375 (window, pos)) | |
| 5376 { | |
| 5377 struct window* w; | |
| 5378 struct display_line *dl; | |
| 5379 struct rune* rb; | |
| 5380 | |
| 5381 if (!get_current_pixel_pos(window, pos, &w, &rb, &dl)) | |
| 5382 return Qnil; | |
| 5383 | |
| 5384 return make_int (dl->ypos - dl->ascent - WINDOW_TOP (w)); | |
| 5385 } | |
| 5386 | |
| 428 | 5387 |
| 5388 #ifdef DEBUG_XEMACS | |
| 5389 /* This is short and simple in elisp, but... it was written to debug | |
| 5390 problems purely on the C side. That is where we need to call it so | |
| 5391 here it is. */ | |
| 5392 static void | |
| 5393 debug_print_window (Lisp_Object window, int level) | |
| 5394 { | |
| 5395 int i; | |
| 5396 Lisp_Object child = Fwindow_first_vchild (window); | |
| 5397 | |
| 5398 if (NILP (child)) | |
| 5399 child = Fwindow_first_hchild (window); | |
| 5400 | |
| 5401 for (i = level; i > 0; i--) | |
| 442 | 5402 stderr_out ("\t"); |
| 5403 | |
| 5404 stderr_out ("#<window"); | |
| 428 | 5405 { |
| 5406 Lisp_Object buffer = XWINDOW (window)->buffer; | |
| 5407 if (!NILP (buffer) && BUFFERP (buffer)) | |
| 442 | 5408 stderr_out (" on %s", XSTRING_DATA (XBUFFER (buffer)->name)); |
| 428 | 5409 } |
|
5142
f965e31a35f0
reduce lcrecord headers to 2 words, rename printing_unreadable_object
Ben Wing <ben@xemacs.org>
parents:
5128
diff
changeset
|
5410 stderr_out (" 0x%x>", NORMAL_LISP_OBJECT_UID (XWINDOW (window))); |
| 428 | 5411 |
| 5412 while (!NILP (child)) | |
| 5413 { | |
| 5414 debug_print_window (child, level + 1); | |
| 5415 child = Fwindow_next_child (child); | |
| 5416 } | |
| 5417 } | |
| 5418 | |
| 5419 void debug_print_windows (struct frame *f); | |
| 5420 void | |
| 5421 debug_print_windows (struct frame *f) | |
| 5422 { | |
| 5423 debug_print_window (f->root_window, 0); | |
| 5424 putc ('\n', stderr); | |
| 5425 } | |
| 5426 #endif /* DEBUG_XEMACS */ | |
| 5427 | |
| 5428 | |
| 5429 /************************************************************************/ | |
| 5430 /* initialization */ | |
| 5431 /************************************************************************/ | |
| 5432 | |
| 5433 void | |
| 5434 syms_of_window (void) | |
| 5435 { | |
|
5117
3742ea8250b5
Checking in final CVS version of workspace 'ben-lisp-object'
Ben Wing <ben@xemacs.org>
parents:
3078
diff
changeset
|
5436 INIT_LISP_OBJECT (window); |
|
3742ea8250b5
Checking in final CVS version of workspace 'ben-lisp-object'
Ben Wing <ben@xemacs.org>
parents:
3078
diff
changeset
|
5437 INIT_LISP_OBJECT (window_mirror); |
| 3092 | 5438 #ifdef NEW_GC |
|
5118
e0db3c197671
merge up to latest default branch, doesn't compile yet
Ben Wing <ben@xemacs.org>
diff
changeset
|
5439 INIT_LISP_OBJECT (face_cachel); |
|
e0db3c197671
merge up to latest default branch, doesn't compile yet
Ben Wing <ben@xemacs.org>
diff
changeset
|
5440 INIT_LISP_OBJECT (face_cachel_dynarr); |
|
e0db3c197671
merge up to latest default branch, doesn't compile yet
Ben Wing <ben@xemacs.org>
diff
changeset
|
5441 INIT_LISP_OBJECT (glyph_cachel); |
|
e0db3c197671
merge up to latest default branch, doesn't compile yet
Ben Wing <ben@xemacs.org>
diff
changeset
|
5442 INIT_LISP_OBJECT (glyph_cachel_dynarr); |
| 3092 | 5443 #endif /* NEW_GC */ |
| 442 | 5444 |
| 563 | 5445 DEFSYMBOL (Qwindowp); |
| 5446 DEFSYMBOL (Qwindow_live_p); | |
| 5447 DEFSYMBOL (Qdisplay_buffer); | |
| 428 | 5448 |
| 5449 #ifdef MEMORY_USAGE_STATS | |
| 563 | 5450 DEFSYMBOL (Qface_cache); |
| 5451 DEFSYMBOL (Qglyph_cache); | |
| 5452 DEFSYMBOL (Qline_start_cache); | |
| 428 | 5453 #ifdef HAVE_SCROLLBARS |
| 563 | 5454 DEFSYMBOL (Qscrollbar_instances); |
| 428 | 5455 #endif |
| 563 | 5456 DEFSYMBOL (Qother_redisplay); |
| 428 | 5457 /* Qother in general.c */ |
| 5458 #endif | |
| 5459 | |
| 707 | 5460 DEFSYMBOL (Qtruncate_partial_width_windows); |
| 1149 | 5461 DEFSYMBOL (Qcurrent_window_configuration); |
| 5462 DEFSYMBOL (Qset_window_configuration); | |
| 707 | 5463 |
| 428 | 5464 DEFSUBR (Fselected_window); |
| 5465 DEFSUBR (Flast_nonminibuf_window); | |
| 5466 DEFSUBR (Fminibuffer_window); | |
| 5467 DEFSUBR (Fwindow_minibuffer_p); | |
| 5468 DEFSUBR (Fwindowp); | |
| 5469 DEFSUBR (Fwindow_live_p); | |
| 5470 DEFSUBR (Fwindow_first_hchild); | |
| 5471 DEFSUBR (Fwindow_first_vchild); | |
| 5472 DEFSUBR (Fwindow_next_child); | |
| 5473 DEFSUBR (Fwindow_previous_child); | |
| 5474 DEFSUBR (Fwindow_parent); | |
| 5475 DEFSUBR (Fwindow_lowest_p); | |
| 5476 DEFSUBR (Fwindow_truncated_p); | |
| 5477 DEFSUBR (Fwindow_highest_p); | |
| 5478 DEFSUBR (Fwindow_leftmost_p); | |
| 5479 DEFSUBR (Fwindow_rightmost_p); | |
| 5480 DEFSUBR (Fpos_visible_in_window_p); | |
| 5481 DEFSUBR (Fwindow_buffer); | |
| 5482 DEFSUBR (Fwindow_frame); | |
| 5483 DEFSUBR (Fwindow_height); | |
| 5484 DEFSUBR (Fwindow_displayed_height); | |
| 5485 DEFSUBR (Fwindow_width); | |
| 442 | 5486 DEFSUBR (Fwindow_full_width); |
| 428 | 5487 DEFSUBR (Fwindow_pixel_height); |
| 5488 DEFSUBR (Fwindow_pixel_width); | |
| 442 | 5489 DEFSUBR (Fwindow_text_area_height); |
| 428 | 5490 DEFSUBR (Fwindow_text_area_pixel_height); |
| 5491 DEFSUBR (Fwindow_displayed_text_pixel_height); | |
| 5492 DEFSUBR (Fwindow_text_area_pixel_width); | |
| 5493 DEFSUBR (Fwindow_hscroll); | |
| 438 | 5494 DEFSUBR (Fset_window_hscroll); |
| 428 | 5495 DEFSUBR (Fmodeline_hscroll); |
| 5496 DEFSUBR (Fset_modeline_hscroll); | |
| 5497 DEFSUBR (Fwindow_pixel_edges); | |
| 5498 DEFSUBR (Fwindow_text_area_pixel_edges); | |
| 5499 DEFSUBR (Fwindow_point); | |
| 5500 DEFSUBR (Fwindow_start); | |
| 5501 DEFSUBR (Fwindow_end); | |
| 442 | 5502 DEFSUBR (Fwindow_last_line_visible_height); |
| 428 | 5503 DEFSUBR (Fset_window_point); |
| 5504 DEFSUBR (Fset_window_start); | |
| 5505 DEFSUBR (Fwindow_dedicated_p); | |
| 5506 DEFSUBR (Fset_window_dedicated_p); | |
| 5507 DEFSUBR (Fnext_window); | |
| 5508 DEFSUBR (Fprevious_window); | |
| 5509 DEFSUBR (Fnext_vertical_window); | |
| 5510 DEFSUBR (Fother_window); | |
| 5511 DEFSUBR (Fget_lru_window); | |
| 5512 DEFSUBR (Fget_largest_window); | |
| 5513 DEFSUBR (Fget_buffer_window); | |
| 5514 DEFSUBR (Fwindow_left_margin_pixel_width); | |
| 5515 DEFSUBR (Fwindow_right_margin_pixel_width); | |
| 5516 DEFSUBR (Fdelete_other_windows); | |
| 5517 DEFSUBR (Fdelete_windows_on); | |
| 5518 DEFSUBR (Freplace_buffer_in_windows); | |
| 5519 DEFSUBR (Fdelete_window); | |
| 5520 DEFSUBR (Fset_window_buffer); | |
| 5521 DEFSUBR (Fselect_window); | |
| 5522 DEFSUBR (Fsplit_window); | |
| 5523 DEFSUBR (Fenlarge_window); | |
| 5524 DEFSUBR (Fenlarge_window_pixels); | |
| 5525 DEFSUBR (Fshrink_window); | |
| 5526 DEFSUBR (Fshrink_window_pixels); | |
| 5527 DEFSUBR (Fscroll_up); | |
| 5528 DEFSUBR (Fscroll_down); | |
| 5529 DEFSUBR (Fscroll_left); | |
| 5530 DEFSUBR (Fscroll_right); | |
| 5531 DEFSUBR (Fother_window_for_scrolling); | |
| 5532 DEFSUBR (Fscroll_other_window); | |
| 5533 DEFSUBR (Fcenter_to_window_line); | |
| 5534 DEFSUBR (Fmove_to_window_line); | |
| 5535 #ifdef MEMORY_USAGE_STATS | |
| 5536 DEFSUBR (Fwindow_memory_usage); | |
| 5537 #endif | |
| 5538 DEFSUBR (Fcurrent_pixel_column); | |
| 2289 | 5539 DEFSUBR (Fcurrent_pixel_row); |
| 428 | 5540 } |
| 5541 | |
| 5542 void | |
| 5543 reinit_vars_of_window (void) | |
| 5544 { | |
| 5545 /* Make sure all windows get marked */ | |
| 5546 minibuf_window = Qnil; | |
| 5547 staticpro_nodump (&minibuf_window); | |
| 5548 } | |
| 5549 | |
| 5550 void | |
| 5551 vars_of_window (void) | |
| 5552 { | |
| 5553 DEFVAR_BOOL ("scroll-on-clipped-lines", &scroll_on_clipped_lines /* | |
| 5554 *Non-nil means to scroll if point lands on a line which is clipped. | |
| 5555 */ ); | |
| 5556 scroll_on_clipped_lines = 1; | |
| 5557 | |
| 5558 DEFVAR_LISP ("temp-buffer-show-function", &Vtemp_buffer_show_function /* | |
| 5559 Non-nil means call as function to display a help buffer. | |
| 5560 The function is called with one argument, the buffer to be displayed. | |
| 5561 Used by `with-output-to-temp-buffer'. | |
| 5562 If this function is used, then it must do the entire job of showing | |
| 5563 the buffer; `temp-buffer-show-hook' is not run unless this function runs it. | |
| 442 | 5564 \(`temp-buffer-show-hook' is obsolete. Do not use in new code.) |
| 428 | 5565 */ ); |
| 5566 Vtemp_buffer_show_function = Qnil; | |
| 5567 | |
| 5568 DEFVAR_LISP ("minibuffer-scroll-window", &Vminibuffer_scroll_window /* | |
| 5569 Non-nil means it is the window that \\<minibuffer-local-map>\\[scroll-other-window] in minibuffer should scroll. | |
| 5570 */ ); | |
| 5571 Vminibuffer_scroll_window = Qnil; | |
| 5572 | |
| 5573 DEFVAR_LISP ("other-window-scroll-buffer", &Vother_window_scroll_buffer /* | |
| 5574 If non-nil, this is a buffer and \\[scroll-other-window] should scroll its window. | |
| 5575 */ ); | |
| 5576 Vother_window_scroll_buffer = Qnil; | |
| 5577 | |
| 5578 DEFVAR_LISP ("window-pixel-scroll-increment", &Vwindow_pixel_scroll_increment /* | |
| 5579 *Number of pixels to scroll by per requested line. | |
| 5580 If nil then normal line scrolling occurs regardless of line height. | |
| 5581 If t then scrolling is done in increments equal to the height of the default face. | |
| 5582 */ ); | |
| 5583 Vwindow_pixel_scroll_increment = Qt; | |
| 5584 | |
| 5585 DEFVAR_INT ("next-screen-context-lines", &next_screen_context_lines /* | |
| 5586 *Number of lines of continuity when scrolling by screenfuls. | |
| 5587 */ ); | |
| 5588 next_screen_context_lines = 2; | |
| 5589 | |
| 5590 DEFVAR_INT ("window-min-height", &window_min_height /* | |
| 5591 *Delete any window less than this tall (including its modeline). | |
| 5592 */ ); | |
| 5593 window_min_height = 4; | |
| 5594 | |
| 5595 DEFVAR_INT ("window-min-width", &window_min_width /* | |
| 5596 *Delete any window less than this wide. | |
| 5597 */ ); | |
| 5598 window_min_width = 10; | |
| 5599 } | |
| 5600 | |
| 5601 void | |
| 5602 specifier_vars_of_window (void) | |
| 5603 { | |
| 5604 DEFVAR_SPECIFIER ("modeline-shadow-thickness", &Vmodeline_shadow_thickness /* | |
| 5605 *How thick to draw 3D shadows around modelines. | |
| 5606 If this is set to 0, modelines will be the traditional 2D. Sizes above | |
| 5607 10 will be accepted but the maximum thickness that will be drawn is 10. | |
| 5608 This is a specifier; use `set-specifier' to change it. | |
| 5609 */ ); | |
| 5610 Vmodeline_shadow_thickness = Fmake_specifier (Qinteger); | |
| 5611 /* The initial value for modeline-shadow-thickness is 2, but if the | |
| 5612 user removes all specifications we provide a fallback value of 0, | |
| 5613 which is probably what was expected. */ | |
| 5614 set_specifier_fallback (Vmodeline_shadow_thickness, | |
| 5615 list1 (Fcons (Qnil, Qzero))); | |
| 5616 Fadd_spec_to_specifier (Vmodeline_shadow_thickness, make_int (2), | |
| 5617 Qnil, Qnil, Qnil); | |
| 5618 set_specifier_caching (Vmodeline_shadow_thickness, | |
| 438 | 5619 offsetof (struct window, modeline_shadow_thickness), |
| 428 | 5620 modeline_shadow_thickness_changed, |
| 444 | 5621 0, 0, 0); |
| 428 | 5622 |
| 5623 DEFVAR_SPECIFIER ("has-modeline-p", &Vhas_modeline_p /* | |
| 5624 *Whether the modeline should be displayed. | |
| 5625 This is a specifier; use `set-specifier' to change it. | |
| 5626 */ ); | |
| 5627 Vhas_modeline_p = Fmake_specifier (Qboolean); | |
| 5628 set_specifier_fallback (Vhas_modeline_p, | |
| 5629 list1 (Fcons (Qnil, Qt))); | |
| 5630 set_specifier_caching (Vhas_modeline_p, | |
| 438 | 5631 offsetof (struct window, has_modeline_p), |
| 428 | 5632 /* #### It's strange that we need a special |
| 5633 flag to indicate that the shadow-thickness | |
| 5634 has changed, but not one to indicate that | |
| 5635 the modeline has been turned off or on. */ | |
| 5636 some_window_value_changed, | |
| 444 | 5637 0, 0, 0); |
| 428 | 5638 |
| 5639 DEFVAR_SPECIFIER ("vertical-divider-always-visible-p", | |
| 5640 &Vvertical_divider_always_visible_p /* | |
| 5641 *Should XEmacs always display vertical dividers between windows. | |
| 5642 | |
| 5643 When this is non-nil, vertical dividers are always shown, and are | |
| 5644 draggable. When it is nil, vertical dividers are shown only when | |
| 5645 there are no scrollbars in between windows, and are not draggable. | |
| 5646 | |
| 5647 This is a specifier; use `set-specifier' to change it. | |
| 5648 */ ); | |
| 5649 Vvertical_divider_always_visible_p = Fmake_specifier (Qboolean); | |
| 5650 set_specifier_fallback (Vvertical_divider_always_visible_p, | |
| 5651 list1 (Fcons (Qnil, Qt))); | |
| 5652 set_specifier_caching (Vvertical_divider_always_visible_p, | |
| 438 | 5653 offsetof (struct window, |
| 5654 vertical_divider_always_visible_p), | |
| 428 | 5655 vertical_divider_changed_in_window, |
| 444 | 5656 0, 0, 0); |
| 428 | 5657 |
| 5658 DEFVAR_SPECIFIER ("vertical-divider-shadow-thickness", &Vvertical_divider_shadow_thickness /* | |
| 5659 *How thick to draw 3D shadows around vertical dividers. | |
| 5660 This is a specifier; use `set-specifier' to change it. | |
| 5661 */ ); | |
| 5662 Vvertical_divider_shadow_thickness = Fmake_specifier (Qinteger); | |
| 5663 set_specifier_fallback (Vvertical_divider_shadow_thickness, | |
| 5664 list1 (Fcons (Qnil, Qzero))); | |
| 5665 Fadd_spec_to_specifier (Vvertical_divider_shadow_thickness, make_int (2), | |
| 5666 Qnil, Qnil, Qnil); | |
| 5667 set_specifier_caching (Vvertical_divider_shadow_thickness, | |
| 438 | 5668 offsetof (struct window, |
| 5669 vertical_divider_shadow_thickness), | |
| 428 | 5670 vertical_divider_changed_in_window, |
| 444 | 5671 0, 0, 0); |
| 428 | 5672 DEFVAR_SPECIFIER ("vertical-divider-line-width", &Vvertical_divider_line_width /* |
| 5673 *The width of the vertical dividers, not including shadows. | |
| 5674 | |
| 5675 For TTY windows, divider line is always one character wide. When | |
| 5676 instance of this specifier is zero in a TTY window, no divider is | |
| 5677 drawn at all between windows. When non-zero, a one character wide | |
| 5678 divider is displayed. | |
| 5679 | |
| 5680 This is a specifier; use `set-specifier' to change it. | |
| 5681 */ ); | |
| 5682 | |
| 5683 Vvertical_divider_line_width = Fmake_specifier (Qnatnum); | |
| 5684 { | |
| 5685 Lisp_Object fb = Qnil; | |
| 5686 #ifdef HAVE_TTY | |
| 5687 fb = Fcons (Fcons (list1 (Qtty), make_int (1)), fb); | |
| 5688 #endif | |
| 462 | 5689 #ifdef HAVE_GTK |
| 5690 fb = Fcons (Fcons (list1 (Qgtk), make_int (3)), fb); | |
| 5691 #endif | |
| 428 | 5692 #ifdef HAVE_X_WINDOWS |
| 5693 fb = Fcons (Fcons (list1 (Qx), make_int (3)), fb); | |
| 5694 #endif | |
| 5695 #ifdef HAVE_MS_WINDOWS | |
| 5696 /* #### This should be made magic and made to obey system settings */ | |
| 5697 fb = Fcons (Fcons (list1 (Qmswindows), make_int (3)), fb); | |
| 5698 #endif | |
| 5699 set_specifier_fallback (Vvertical_divider_line_width, fb); | |
| 5700 } | |
| 5701 set_specifier_caching (Vvertical_divider_line_width, | |
| 438 | 5702 offsetof (struct window, |
| 5703 vertical_divider_line_width), | |
| 428 | 5704 vertical_divider_changed_in_window, |
| 444 | 5705 0, 0, 0); |
| 428 | 5706 |
| 5707 DEFVAR_SPECIFIER ("vertical-divider-spacing", &Vvertical_divider_spacing /* | |
| 5708 *How much space to leave around the vertical dividers. | |
| 5709 | |
| 5710 In TTY windows, spacing is always zero, and the value of this | |
| 5711 specifier is ignored. | |
| 5712 | |
| 5713 This is a specifier; use `set-specifier' to change it. | |
| 5714 */ ); | |
| 5715 Vvertical_divider_spacing = Fmake_specifier (Qnatnum); | |
| 5716 { | |
| 5717 Lisp_Object fb = Qnil; | |
| 5718 #ifdef HAVE_TTY | |
| 5719 fb = Fcons (Fcons (list1 (Qtty), Qzero), fb); | |
| 5720 #endif | |
| 5721 #ifdef HAVE_X_WINDOWS | |
| 5722 /* #### 3D dividers look great on MS Windows with spacing = 0. | |
| 5723 Should not the same value be the fallback under X? - kkm */ | |
| 5724 fb = Fcons (Fcons (list1 (Qx), make_int (2)), fb); | |
| 5725 #endif | |
| 462 | 5726 #ifdef HAVE_GTK |
| 5727 fb = Fcons (Fcons (list1 (Qgtk), Qzero), fb); | |
| 5728 #endif | |
| 428 | 5729 #ifdef HAVE_MS_WINDOWS |
| 5730 fb = Fcons (Fcons (list1 (Qmswindows), Qzero), fb); | |
| 5731 #endif | |
| 5732 set_specifier_fallback (Vvertical_divider_spacing, fb); | |
| 5733 } | |
| 5734 set_specifier_caching (Vvertical_divider_spacing, | |
| 438 | 5735 offsetof (struct window, vertical_divider_spacing), |
| 428 | 5736 vertical_divider_changed_in_window, |
| 444 | 5737 0, 0, 0); |
| 5738 } |