Mercurial > hg > xemacs-beta
annotate src/window.c @ 5581:56144c8593a8
Mechanically change INT to FIXNUM in our sources.
src/ChangeLog addition:
2011-10-09 Aidan Kehoe <kehoea@parhasard.net>
[...]
Mechanically change INT (where it refers to non-bignum Lisp
integers) to FIXNUM in our sources. Done for the following
functions, enums, and macros: Lisp_Type_Int_Even,
Lisp_Type_Int_Odd, INT_GCBITS, INT_VALBITS, make_int(), INTP(),
XINT(), CHECK_INT(), XREALINT(), INT_PLUS(), INT_MINUS(),
EMACS_INT_MAX (to MOST_POSITIVE_FIXNUM), EMACS_INT_MIN (to
MOST_NEGATIVE_FIXNUM), NUMBER_FITS_IN_AN_EMACS_INT() to
NUMBER_FITS_IN_A_FIXNUM(), XFLOATINT, XCHAR_OR_INT, INT_OR_FLOAT.
The EMACS_INT typedef was not changed, it does not describe
non-bignum Lisp integers.
Script that did the change available in
http://mid.gmane.org/20067.17650.181273.12014@parhasard.net .
modules/ChangeLog addition:
2011-10-09 Aidan Kehoe <kehoea@parhasard.net>
[...]
Mechanically change INT to FIXNUM, where the usage describes non-bignum
Lisp integers. See the src/ChangeLog entry for more details.
man/ChangeLog addition:
2011-10-09 Aidan Kehoe <kehoea@parhasard.net>
* internals/internals.texi (How Lisp Objects Are Represented in C):
* internals/internals.texi (Integers and Characters):
Mechanically change INT to FIXNUM, where the usage describes non-bignum
Lisp integers.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Sun, 09 Oct 2011 09:51:57 +0100 |
| parents | 4dee0387b9de |
| children | 3fde0e346ad7 |
| rev | line source |
|---|---|
| 428 | 1 /* Window creation, deletion and examination for XEmacs. |
| 2 Copyright (C) 1985-1987, 1992-1995 Free Software Foundation, Inc. | |
| 3 Copyright (C) 1994, 1995 Board of Trustees, University of Illinois. | |
| 5043 | 4 Copyright (C) 1995, 1996, 2002, 2010 Ben Wing. |
| 428 | 5 Copyright (C) 1996 Chuck Thompson. |
| 6 | |
| 7 This file is part of XEmacs. | |
| 8 | |
|
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9 XEmacs is free software: you can redistribute it and/or modify it |
| 428 | 10 under the terms of the GNU General Public License as published by the |
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11 Free Software Foundation, either version 3 of the License, or (at your |
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12 option) any later version. |
| 428 | 13 |
| 14 XEmacs is distributed in the hope that it will be useful, but WITHOUT | |
| 15 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 17 for more details. | |
| 18 | |
| 19 You should have received a copy of the GNU General Public License | |
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20 along with XEmacs. If not, see <http://www.gnu.org/licenses/>. */ |
| 428 | 21 |
| 22 /* Synched up with: FSF 19.30. */ | |
| 23 /* Beginning to diverge significantly. */ | |
| 24 | |
| 853 | 25 /* Authorship: |
| 26 | |
| 27 Based on code from pre-release FSF 19, c. 1991. | |
| 28 Significantly reworked by Chuck Thompson, 1993-1996. | |
| 29 window mirror stuff added by Chuck Thompson c. 1993. | |
| 30 various cleanup by Ben Wing c. 1995 (window slots, window init code, | |
| 31 memory usage, synch. up to FSF 19.30, other). | |
| 32 Unknown work by Andy Piper. | |
| 33 new window-width/height fns. by Ben Wing, Mar 2000. */ | |
| 34 | |
| 428 | 35 /* This file has been Mule-ized. */ |
| 36 | |
| 37 #include <config.h> | |
| 38 #include "lisp.h" | |
| 39 | |
| 40 #include "buffer.h" | |
| 800 | 41 #include "commands.h" |
| 872 | 42 #include "device-impl.h" |
| 800 | 43 #include "elhash.h" |
| 428 | 44 #include "faces.h" |
| 872 | 45 #include "frame-impl.h" |
| 800 | 46 #include "glyphs.h" |
| 47 #include "gutter.h" | |
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48 #include "fontcolor.h" |
| 428 | 49 #include "redisplay.h" |
| 872 | 50 #include "window-impl.h" |
| 428 | 51 |
| 1149 | 52 Lisp_Object Qwindowp, Qwindow_live_p; |
| 428 | 53 Lisp_Object Qdisplay_buffer; |
| 54 | |
| 55 #ifdef MEMORY_USAGE_STATS | |
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56 Lisp_Object Qface_cache, Qglyph_cache, Qline_start_cache, Qredisplay_structs; |
| 428 | 57 #ifdef HAVE_SCROLLBARS |
| 58 Lisp_Object Qscrollbar_instances; | |
| 59 #endif | |
| 60 #endif | |
| 61 | |
| 1979 | 62 extern int allow_deletion_of_last_visible_frame; |
| 63 | |
| 428 | 64 EXFUN (Fnext_window, 4); |
| 65 | |
| 66 static int window_pixel_width_to_char_width (struct window *w, | |
| 67 int pixel_width, | |
| 68 int include_margins_p); | |
| 69 static int window_char_width_to_pixel_width (struct window *w, | |
| 70 int char_width, | |
| 71 int include_margins_p); | |
| 72 static int window_pixel_height_to_char_height (struct window *w, | |
| 73 int pixel_height, | |
| 74 int include_gutters_p); | |
| 75 static int window_char_height_to_pixel_height (struct window *w, | |
| 76 int char_height, | |
| 77 int include_gutters_p); | |
| 444 | 78 static void change_window_height (Lisp_Object window, int delta, |
| 79 Lisp_Object horizontalp, int inpixels); | |
| 428 | 80 |
| 81 /* Thickness of shadow border around 3d modelines. */ | |
| 82 Lisp_Object Vmodeline_shadow_thickness; | |
| 83 | |
| 84 /* Whether vertical dividers are draggable and displayed */ | |
| 85 Lisp_Object Vvertical_divider_always_visible_p; | |
| 86 | |
| 87 /* Whether a modeline should be displayed. */ | |
| 88 Lisp_Object Vhas_modeline_p; | |
| 89 | |
| 90 /* Thickness of shadow border around vertical dividers. */ | |
| 91 Lisp_Object Vvertical_divider_shadow_thickness; | |
| 92 | |
| 93 /* Divider surface width (not counting 3-d borders) */ | |
| 94 Lisp_Object Vvertical_divider_line_width; | |
| 95 | |
| 442 | 96 /* Spacing between outer edge of divider border and window edge */ |
| 428 | 97 Lisp_Object Vvertical_divider_spacing; |
| 98 | |
| 99 /* How much to scroll by per-line. */ | |
| 100 Lisp_Object Vwindow_pixel_scroll_increment; | |
| 101 | |
| 102 /* Scroll if point lands on the bottom line and that line is partially | |
| 103 clipped. */ | |
| 104 int scroll_on_clipped_lines; | |
| 105 | |
| 106 /* The minibuffer window of the selected frame. | |
| 107 Note that you cannot test for minibufferness of an arbitrary window | |
| 108 by comparing against this; but you can test for minibufferness of | |
| 109 the selected window. */ | |
| 110 Lisp_Object minibuf_window; | |
| 111 | |
| 112 /* Non-nil means it is the window for C-M-v to scroll | |
| 113 when the minibuffer is selected. */ | |
| 114 Lisp_Object Vminibuffer_scroll_window; | |
| 115 | |
| 116 /* Non-nil means this is the buffer whose window C-M-v should scroll. */ | |
| 117 Lisp_Object Vother_window_scroll_buffer; | |
| 118 | |
| 119 /* Non-nil means it's the function to call to display temp buffers. */ | |
| 120 Lisp_Object Vtemp_buffer_show_function; | |
| 121 | |
| 122 /* If a window gets smaller than either of these, it is removed. */ | |
| 458 | 123 Fixnum window_min_height; |
| 124 Fixnum window_min_width; | |
| 428 | 125 |
| 126 /* Number of lines of continuity in scrolling by screenfuls. */ | |
| 458 | 127 Fixnum next_screen_context_lines; |
| 428 | 128 |
| 1149 | 129 Lisp_Object Qcurrent_window_configuration, Qset_window_configuration; |
| 428 | 130 |
| 707 | 131 Lisp_Object Qtruncate_partial_width_windows; |
| 132 | |
| 428 | 133 #define SET_LAST_MODIFIED(w, cache_too) \ |
| 134 do { \ | |
| 135 (w)->last_modified[CURRENT_DISP] = Qzero; \ | |
| 136 (w)->last_modified[DESIRED_DISP] = Qzero; \ | |
| 137 (w)->last_modified[CMOTION_DISP] = Qzero; \ | |
| 138 if (cache_too) \ | |
| 139 (w)->line_cache_last_updated = Qzero; \ | |
| 140 } while (0) | |
| 141 | |
| 142 #define SET_LAST_FACECHANGE(w) \ | |
| 143 do { \ | |
| 144 (w)->last_facechange[CURRENT_DISP] = Qzero; \ | |
| 145 (w)->last_facechange[DESIRED_DISP] = Qzero; \ | |
| 146 (w)->last_facechange[CMOTION_DISP] = Qzero; \ | |
| 147 } while (0) | |
| 148 | |
| 149 | |
| 1204 | 150 |
| 151 static const struct memory_description int_description_1[] = { | |
| 152 { XD_END } | |
| 153 }; | |
| 154 | |
| 155 static const struct sized_memory_description int_description = { | |
| 156 sizeof (int), | |
| 157 int_description_1 | |
| 158 }; | |
| 159 | |
| 160 static const struct memory_description int_dynarr_description_1[] = { | |
| 161 XD_DYNARR_DESC (int_dynarr, &int_description), | |
| 162 { XD_END } | |
| 163 }; | |
| 164 | |
| 165 static const struct sized_memory_description int_dynarr_description = { | |
| 166 sizeof (int_dynarr), | |
| 167 int_dynarr_description_1 | |
| 168 }; | |
| 169 | |
| 170 static const struct memory_description face_cachel_description_1[] = { | |
| 2367 | 171 { XD_BLOCK_PTR, offsetof (face_cachel, merged_faces), |
| 2551 | 172 1, { &int_dynarr_description } }, |
| 1204 | 173 { XD_LISP_OBJECT, offsetof (face_cachel, face) }, |
| 174 { XD_LISP_OBJECT, offsetof (face_cachel, foreground) }, | |
| 175 { XD_LISP_OBJECT, offsetof (face_cachel, background) }, | |
| 176 { XD_LISP_OBJECT_ARRAY, offsetof (face_cachel, font), NUM_LEADING_BYTES }, | |
| 177 { XD_LISP_OBJECT, offsetof (face_cachel, display_table) }, | |
| 178 { XD_LISP_OBJECT, offsetof (face_cachel, background_pixmap) }, | |
| 179 { XD_END } | |
| 180 }; | |
| 181 | |
| 3092 | 182 #ifdef NEW_GC |
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183 DEFINE_DUMPABLE_INTERNAL_LISP_OBJECT ("face-cachel", face_cachel, |
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184 0, face_cachel_description_1, |
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185 Lisp_Face_Cachel); |
| 3092 | 186 #endif /* NEW_GC */ |
| 187 | |
| 1204 | 188 static const struct sized_memory_description face_cachel_description = { |
| 189 sizeof (face_cachel), | |
| 190 face_cachel_description_1 | |
| 191 }; | |
| 192 | |
| 193 static const struct memory_description face_cachel_dynarr_description_1[] = { | |
| 3092 | 194 #ifdef NEW_GC |
| 195 XD_LISP_DYNARR_DESC (face_cachel_dynarr, &face_cachel_description), | |
| 196 #else /* not NEW_GC */ | |
| 1204 | 197 XD_DYNARR_DESC (face_cachel_dynarr, &face_cachel_description), |
| 3092 | 198 #endif /* not NEW_GC */ |
| 1204 | 199 { XD_END } |
| 200 }; | |
| 201 | |
| 3092 | 202 #ifdef NEW_GC |
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203 DEFINE_DUMPABLE_INTERNAL_LISP_OBJECT ("face-cachel-dynarr", face_cachel_dynarr, |
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204 0, face_cachel_dynarr_description_1, |
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205 face_cachel_dynarr); |
| 3092 | 206 #else /* not NEW_GC */ |
| 1204 | 207 static const struct sized_memory_description face_cachel_dynarr_description = { |
| 208 sizeof (face_cachel_dynarr), | |
| 209 face_cachel_dynarr_description_1 | |
| 210 }; | |
| 3092 | 211 #endif /* not NEW_GC */ |
| 1204 | 212 |
| 213 static const struct memory_description glyph_cachel_description_1[] = { | |
| 214 { XD_LISP_OBJECT, offsetof (glyph_cachel, glyph) }, | |
| 215 { XD_END } | |
| 216 }; | |
| 217 | |
| 3092 | 218 #ifdef NEW_GC |
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219 DEFINE_DUMPABLE_INTERNAL_LISP_OBJECT ("glyph-cachel", glyph_cachel, |
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220 0, glyph_cachel_description_1, |
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221 Lisp_Glyph_Cachel); |
| 3092 | 222 #endif /* NEW_GC */ |
| 223 | |
| 1204 | 224 static const struct sized_memory_description glyph_cachel_description = { |
| 225 sizeof (glyph_cachel), | |
| 226 glyph_cachel_description_1 | |
| 227 }; | |
| 228 | |
| 229 static const struct memory_description glyph_cachel_dynarr_description_1[] = { | |
| 3092 | 230 #ifdef NEW_GC |
| 231 XD_LISP_DYNARR_DESC (glyph_cachel_dynarr, &glyph_cachel_description), | |
| 232 #else /* not NEW_GC */ | |
| 1204 | 233 XD_DYNARR_DESC (glyph_cachel_dynarr, &glyph_cachel_description), |
| 3092 | 234 #endif /* not NEW_GC */ |
| 1204 | 235 { XD_END } |
| 236 }; | |
| 237 | |
| 3092 | 238 #ifdef NEW_GC |
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239 DEFINE_DUMPABLE_INTERNAL_LISP_OBJECT ("glyph-cachel-dynarr", |
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240 glyph_cachel_dynarr, 0, |
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241 glyph_cachel_dynarr_description_1, |
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242 glyph_cachel_dynarr); |
| 3092 | 243 #else /* not NEW_GC */ |
| 1204 | 244 static const struct sized_memory_description glyph_cachel_dynarr_description = { |
| 245 sizeof (glyph_cachel_dynarr), | |
| 246 glyph_cachel_dynarr_description_1 | |
| 247 }; | |
| 3092 | 248 #endif /* not NEW_GC */ |
| 1204 | 249 |
| 250 static const struct memory_description line_start_cache_description_1[] = { | |
| 251 { XD_END } | |
| 252 }; | |
| 253 | |
| 254 static const struct sized_memory_description line_start_cache_description = { | |
| 255 sizeof (line_start_cache), | |
| 256 line_start_cache_description_1 | |
| 257 }; | |
| 258 | |
| 259 static const struct memory_description line_start_cache_dynarr_description_1[] = { | |
| 260 XD_DYNARR_DESC (line_start_cache_dynarr, &line_start_cache_description), | |
| 261 { XD_END } | |
| 262 }; | |
| 263 | |
| 264 static const struct sized_memory_description line_start_cache_dynarr_description = { | |
| 265 sizeof (line_start_cache_dynarr), | |
| 266 line_start_cache_dynarr_description_1 | |
| 267 }; | |
| 268 | |
| 269 static const struct memory_description window_description [] = { | |
| 270 #define WINDOW_SLOT(slot) { XD_LISP_OBJECT, offsetof (struct window, slot) }, | |
| 271 #define WINDOW_SLOT_ARRAY(slot, size) \ | |
| 272 { XD_LISP_OBJECT_ARRAY, offsetof (struct window, slot), size }, | |
| 273 #include "winslots.h" | |
| 274 | |
| 3092 | 275 #ifdef NEW_GC |
| 276 { XD_LISP_OBJECT, offsetof (struct window, face_cachels) }, | |
| 277 { XD_LISP_OBJECT, offsetof (struct window, glyph_cachels) }, | |
| 278 #else /* not NEW_GC */ | |
| 2367 | 279 { XD_BLOCK_PTR, offsetof (struct window, face_cachels), |
| 2551 | 280 1, { &face_cachel_dynarr_description } }, |
| 2367 | 281 { XD_BLOCK_PTR, offsetof (struct window, glyph_cachels), |
| 2551 | 282 1, { &glyph_cachel_dynarr_description } }, |
| 3092 | 283 #endif /* not NEW_GC */ |
| 2367 | 284 { XD_BLOCK_PTR, offsetof (struct window, line_start_cache), |
| 2775 | 285 1, { &line_start_cache_dynarr_description }, XD_FLAG_NO_KKCC }, |
| 1204 | 286 { XD_END } |
| 287 }; | |
| 428 | 288 |
| 289 static Lisp_Object | |
| 290 mark_window (Lisp_Object obj) | |
| 291 { | |
| 292 struct window *window = XWINDOW (obj); | |
| 293 | |
| 294 mark_face_cachels (window->face_cachels); | |
| 295 mark_glyph_cachels (window->glyph_cachels); | |
| 296 | |
| 617 | 297 #define WINDOW_SLOT(slot) mark_object (window->slot); |
| 428 | 298 #include "winslots.h" |
| 299 | |
| 300 return Qnil; | |
| 301 } | |
| 302 | |
| 303 static void | |
| 2286 | 304 print_window (Lisp_Object obj, Lisp_Object printcharfun, |
| 305 int UNUSED (escapeflag)) | |
| 428 | 306 { |
| 4846 | 307 Lisp_Object buf; |
| 308 | |
| 428 | 309 if (print_readably) |
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310 printing_unreadable_lisp_object (obj, 0); |
| 428 | 311 |
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312 write_ascstring (printcharfun, "#<window"); |
| 4846 | 313 buf = XWINDOW_BUFFER (obj); |
| 314 if (EQ (buf, Qt)) | |
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315 write_ascstring (printcharfun, " during creation"); |
| 4846 | 316 else if (!NILP (buf)) |
| 428 | 317 { |
| 4846 | 318 |
| 319 Lisp_Object name = XBUFFER (buf)->name; | |
| 800 | 320 write_fmt_string_lisp (printcharfun, " on %S", 1, name); |
| 428 | 321 } |
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322 write_fmt_string (printcharfun, " 0x%x>", LISP_OBJECT_UID (obj)); |
| 428 | 323 } |
| 324 | |
| 325 static void | |
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326 finalize_window (Lisp_Object obj) |
| 428 | 327 { |
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328 struct window *w = XWINDOW (obj); |
| 428 | 329 |
| 330 if (w->line_start_cache) | |
| 331 { | |
| 332 Dynarr_free (w->line_start_cache); | |
| 333 w->line_start_cache = 0; | |
| 334 } | |
| 335 | |
| 336 if (w->face_cachels) | |
| 337 { | |
| 338 int i; | |
| 339 | |
| 340 for (i = 0; i < Dynarr_length (w->face_cachels); i++) | |
| 341 { | |
| 342 struct face_cachel *cachel = Dynarr_atp (w->face_cachels, i); | |
| 343 if (cachel->merged_faces) | |
| 344 { | |
| 345 Dynarr_free (cachel->merged_faces); | |
| 346 cachel->merged_faces = 0; | |
| 347 } | |
| 348 } | |
| 349 Dynarr_free (w->face_cachels); | |
| 350 w->face_cachels = 0; | |
| 351 } | |
| 352 | |
| 353 if (w->glyph_cachels) | |
| 354 { | |
| 355 Dynarr_free (w->glyph_cachels); | |
| 356 w->glyph_cachels = 0; | |
| 357 } | |
| 358 } | |
| 359 | |
| 844 | 360 /* These caches map buffers to markers. They are key-weak so that entries |
| 361 remain around as long as the buffers do. */ | |
| 362 | |
| 363 static Lisp_Object | |
| 364 make_saved_buffer_point_cache (void) | |
| 365 { | |
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366 return make_lisp_hash_table (20, HASH_TABLE_KEY_WEAK, Qeq); |
| 844 | 367 } |
| 368 | |
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369 DEFINE_NODUMP_LISP_OBJECT ("window", window, |
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370 mark_window, print_window, finalize_window, |
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371 0, 0, window_description, struct window); |
| 428 | 372 |
| 373 #define INIT_DISP_VARIABLE(field, initialization) \ | |
| 374 p->field[CURRENT_DISP] = initialization; \ | |
| 375 p->field[DESIRED_DISP] = initialization; \ | |
| 376 p->field[CMOTION_DISP] = initialization; | |
| 377 | |
| 378 /* We have an implicit assertion that the first two elements (default | |
| 379 and modeline faces) are always present in the face_element_cache. | |
| 380 Normally redisplay ensures this. However, it is possible for a | |
| 381 window to get created and functions which reference these values | |
| 382 called before redisplay works with the window for the first time. | |
| 383 All callers of allocate_window should therefore call | |
| 384 reset_face_cachels on the created window. We can't do it | |
| 385 here because the window must have its frame pointer set or | |
| 386 reset_face_cachels will fail. */ | |
| 387 Lisp_Object | |
| 388 allocate_window (void) | |
| 389 { | |
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390 Lisp_Object obj = ALLOC_NORMAL_LISP_OBJECT (window); |
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391 struct window *p = XWINDOW (obj); |
| 617 | 392 |
| 393 #define WINDOW_SLOT(slot) p->slot = Qnil; | |
| 394 #include "winslots.h" | |
| 395 | |
| 428 | 396 INIT_DISP_VARIABLE (start, Fmake_marker ()); |
| 397 INIT_DISP_VARIABLE (pointm, Fmake_marker ()); | |
| 398 p->sb_point = Fmake_marker (); | |
| 844 | 399 p->saved_point_cache = make_saved_buffer_point_cache (); |
| 400 p->saved_last_window_start_cache = make_saved_buffer_point_cache (); | |
| 428 | 401 p->use_time = Qzero; |
| 402 INIT_DISP_VARIABLE (last_modified, Qzero); | |
| 403 INIT_DISP_VARIABLE (last_point, Fmake_marker ()); | |
| 404 INIT_DISP_VARIABLE (last_start, Fmake_marker ()); | |
| 405 INIT_DISP_VARIABLE (last_facechange, Qzero); | |
| 3092 | 406 #ifdef NEW_GC |
| 407 p->face_cachels = Dynarr_lisp_new (face_cachel, | |
| 408 &lrecord_face_cachel_dynarr, | |
| 409 &lrecord_face_cachel); | |
| 410 p->glyph_cachels = Dynarr_lisp_new (glyph_cachel, | |
| 411 &lrecord_glyph_cachel_dynarr, | |
| 412 &lrecord_glyph_cachel); | |
| 413 #else /* not NEW_GC */ | |
| 428 | 414 p->face_cachels = Dynarr_new (face_cachel); |
| 415 p->glyph_cachels = Dynarr_new (glyph_cachel); | |
| 3092 | 416 #endif /* not NEW_GC */ |
| 428 | 417 p->line_start_cache = Dynarr_new (line_start_cache); |
| 450 | 418 p->subwindow_instance_cache = make_image_instance_cache_hash_table (); |
| 419 | |
| 428 | 420 p->line_cache_last_updated = Qzero; |
| 442 | 421 |
| 428 | 422 p->windows_changed = 1; |
| 423 p->shadow_thickness_changed = 1; | |
| 424 | |
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425 return obj; |
| 428 | 426 } |
| 427 #undef INIT_DISP_VARIABLE | |
| 428 | |
| 617 | 429 /************************************************************************/ |
| 430 /* Window mirror structure */ | |
| 431 /************************************************************************/ | |
| 432 | |
| 428 | 433 /* |
| 434 * The redisplay structures used to be stored with each window. While | |
| 435 * they are logically something associated with frames they can't be | |
| 436 * stored there with a redisplay which handles variable height lines. | |
| 437 * Lines in horizontally split windows might not line up. So they get | |
| 438 * stored with the windows. | |
| 439 * | |
| 440 * The problem with this is window configurations. When restoring a | |
| 441 * window configuration it now becomes problematic to do an | |
| 442 * incremental redisplay. The solution is to store the redisplay | |
| 443 * structures with the frame as they should be but laid out in the | |
| 444 * same manner as the window structure. Thus is born the window | |
| 445 * mirror. | |
| 446 * | |
| 447 * It also becomes a convenient place to stick scrollbar instances | |
| 448 * since they extrapolate out to having the same problem described for | |
| 449 * the display structures. | |
| 450 */ | |
| 451 | |
| 617 | 452 /* NOTE: The window-mirror structure formerly was not a Lisp object, and |
| 453 marking was handled specially. I've gotten recurring crashes, however, | |
| 454 using the mouse wheel under Windows, where either the window mirror | |
| 455 accessed through a scrollbar instance, or the frame pointed to by that | |
| 456 window mirror, gets garbaged. Things are tricky under windows because | |
| 457 the scrollbar instances are stored in HWND-specific data. Furthermore, | |
| 458 we have scrollbar-instance caches to complicate things. Both of these | |
| 459 make it very difficult (for me at least, not being intimately familiar | |
| 460 with the redisplay code) to track exactly when and where a particular | |
| 461 window mirror or scrollbar instance has pointers to it, or whether a | |
| 462 window mirror might have a dead frame or buffer in it (i.e. not | |
| 463 necessarily gc-protected by being on a global list). By far the safest | |
| 464 thing, then, is to make both structures Lisp objects and not explicitly | |
| 465 xfree() them. This should make no practical difference in memory usage | |
| 466 because neither structure is created very often (only when windows are | |
| 467 created or deleted). --ben */ | |
| 468 | |
| 1204 | 469 static const struct memory_description window_mirror_description [] = { |
| 470 { XD_LISP_OBJECT, offsetof (struct window_mirror, frame) }, | |
| 471 { XD_LISP_OBJECT, offsetof (struct window_mirror, next) }, | |
| 472 { XD_LISP_OBJECT, offsetof (struct window_mirror, hchild) }, | |
| 473 { XD_LISP_OBJECT, offsetof (struct window_mirror, vchild) }, | |
| 474 | |
| 2367 | 475 { XD_BLOCK_PTR, offsetof (struct window_mirror, current_display_lines), |
| 2551 | 476 1, { &display_line_dynarr_description } }, |
| 2367 | 477 { XD_BLOCK_PTR, offsetof (struct window_mirror, desired_display_lines), |
| 2551 | 478 1, { &display_line_dynarr_description } }, |
| 1204 | 479 |
| 480 { XD_LISP_OBJECT, offsetof (struct window_mirror, buffer) }, | |
| 481 | |
| 482 #ifdef HAVE_SCROLLBARS | |
| 483 { XD_LISP_OBJECT, offsetof (struct window_mirror, | |
| 484 scrollbar_vertical_instance) }, | |
| 485 { XD_LISP_OBJECT, offsetof (struct window_mirror, | |
| 486 scrollbar_horizontal_instance) }, | |
| 487 #endif /* HAVE_SCROLLBARS */ | |
| 488 | |
| 934 | 489 { XD_END } |
| 490 }; | |
| 491 | |
| 617 | 492 static Lisp_Object |
| 493 mark_window_mirror (Lisp_Object obj) | |
| 494 { | |
| 495 struct window_mirror *mir = XWINDOW_MIRROR (obj); | |
| 496 | |
| 497 if (mir->current_display_lines) | |
| 498 mark_redisplay_structs (mir->current_display_lines); | |
| 499 if (mir->desired_display_lines) | |
| 500 mark_redisplay_structs (mir->desired_display_lines); | |
| 501 | |
| 502 if (mir->hchild) | |
| 503 mark_object (wrap_window_mirror (mir->hchild)); | |
| 504 if (mir->vchild) | |
| 505 mark_object (wrap_window_mirror (mir->vchild)); | |
| 506 | |
| 507 if (mir->frame) | |
| 508 mark_object (wrap_frame (mir->frame)); | |
| 509 if (mir->buffer) | |
| 510 mark_object (wrap_buffer (mir->buffer)); | |
| 511 | |
| 512 #ifdef HAVE_SCROLLBARS | |
| 513 if (mir->scrollbar_vertical_instance) | |
| 514 mark_object (wrap_scrollbar_instance (mir->scrollbar_vertical_instance)); | |
| 515 if (mir->scrollbar_horizontal_instance) | |
| 516 mark_object (wrap_scrollbar_instance (mir->scrollbar_horizontal_instance)); | |
| 517 #endif /* HAVE_SCROLLBARS */ | |
| 518 if (mir->next) | |
| 519 return wrap_window_mirror (mir->next); | |
| 520 else | |
| 521 return Qnil; | |
| 522 } | |
| 523 | |
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524 DEFINE_NODUMP_INTERNAL_LISP_OBJECT ("window-mirror", window_mirror, |
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525 mark_window_mirror, |
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526 window_mirror_description, |
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527 struct window_mirror); |
| 617 | 528 |
| 428 | 529 /* Create a new window mirror structure and associated redisplay |
| 530 structs. */ | |
| 531 static struct window_mirror * | |
| 532 new_window_mirror (struct frame *f) | |
| 533 { | |
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534 Lisp_Object obj = ALLOC_NORMAL_LISP_OBJECT (window_mirror); |
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535 struct window_mirror *t = XWINDOW_MIRROR (obj); |
| 428 | 536 |
| 537 t->frame = f; | |
| 538 t->current_display_lines = Dynarr_new (display_line); | |
| 539 t->desired_display_lines = Dynarr_new (display_line); | |
| 540 | |
| 541 return t; | |
| 542 } | |
| 543 | |
| 544 /* Synchronize the mirror structure with a given window structure. | |
| 545 This is normally called from update_frame_window_mirror with a | |
| 546 starting window of f->root_window. */ | |
| 547 static struct window_mirror * | |
| 548 update_mirror_internal (Lisp_Object win, struct window_mirror *mir) | |
| 549 { | |
| 550 if (NILP (win)) | |
| 551 { | |
| 552 if (mir) | |
| 553 { | |
| 554 free_window_mirror (mir); | |
| 555 mir = NULL; | |
| 556 } | |
| 557 return mir; | |
| 558 } | |
| 559 else | |
| 560 if (!mir) | |
| 561 mir = new_window_mirror (XFRAME (XWINDOW (win)->frame)); | |
| 562 | |
| 1204 | 563 mir->next = update_mirror_internal (XWINDOW (win)->next, mir->next); |
| 428 | 564 mir->hchild = update_mirror_internal (XWINDOW (win)->hchild, mir->hchild); |
| 565 mir->vchild = update_mirror_internal (XWINDOW (win)->vchild, mir->vchild); | |
| 566 | |
| 567 /* | |
| 568 * If the redisplay structs are not empty and the mirror has | |
| 569 * children, then this mirror structure was formerly being used for | |
| 570 * display but is no longer. Reset its current display structs so | |
| 571 * that redisplay doesn't accidentally think they are accurate if it | |
| 572 * is later used for display purposes once again. Also, mark the | |
| 573 * scrollbar instance as not active. | |
| 574 */ | |
| 575 if (mir->vchild || mir->hchild) | |
| 576 { | |
| 577 /* The redisplay structures are big. Leaving them around in | |
| 578 non-leaf windows can add up to a lot of wasted space. So | |
| 579 don't do it. */ | |
| 580 free_display_structs (mir); | |
| 581 mir->current_display_lines = Dynarr_new (display_line); | |
| 582 mir->desired_display_lines = Dynarr_new (display_line); | |
| 583 | |
| 584 #ifdef HAVE_SCROLLBARS | |
| 585 update_window_scrollbars (XWINDOW (win), mir, 0, 0); | |
| 586 #endif | |
| 587 mir->buffer = NULL; | |
| 588 } | |
| 589 | |
| 590 return mir; | |
| 591 } | |
| 592 | |
| 593 /* Given a window mirror, determine which real window it contains the | |
| 594 redisplay structures for. */ | |
| 595 static Lisp_Object | |
| 596 real_window_internal (Lisp_Object win, struct window_mirror *rmir, | |
| 597 struct window_mirror *mir) | |
| 598 { | |
| 599 for (; !NILP (win) && rmir ; win = XWINDOW (win)->next, rmir = rmir->next) | |
| 600 { | |
| 601 if (mir == rmir) | |
| 602 return win; | |
| 603 if (!NILP (XWINDOW (win)->vchild)) | |
| 604 { | |
| 605 Lisp_Object retval = | |
| 606 real_window_internal (XWINDOW (win)->vchild, rmir->vchild, mir); | |
| 607 if (!NILP (retval)) | |
| 608 return retval; | |
| 609 } | |
| 610 if (!NILP (XWINDOW (win)->hchild)) | |
| 611 { | |
| 612 Lisp_Object retval = | |
| 613 real_window_internal (XWINDOW (win)->hchild, rmir->hchild, mir); | |
| 614 if (!NILP (retval)) | |
| 615 return retval; | |
| 616 } | |
| 617 } | |
| 618 | |
| 619 return Qnil; | |
| 620 } | |
| 621 | |
| 622 /* Given a real window, find the mirror structure which contains its | |
| 623 redisplay structures. */ | |
| 624 static struct window_mirror * | |
| 625 find_window_mirror_internal (Lisp_Object win, struct window_mirror *rmir, | |
| 626 struct window *w) | |
| 627 { | |
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628 for (; !NILP (win) && rmir; win = XWINDOW (win)->next, rmir = rmir->next) |
| 428 | 629 { |
| 630 if (w == XWINDOW (win)) | |
| 631 return rmir; | |
| 632 | |
| 633 if (!NILP (XWINDOW (win)->vchild)) | |
| 634 { | |
| 635 struct window_mirror *retval = | |
| 636 find_window_mirror_internal (XWINDOW (win)->vchild, | |
| 637 rmir->vchild, w); | |
| 638 if (retval) return retval; | |
| 639 } | |
| 640 | |
| 641 if (!NILP (XWINDOW (win)->hchild)) | |
| 642 { | |
| 643 struct window_mirror *retval = | |
| 644 find_window_mirror_internal (XWINDOW (win)->hchild, | |
| 645 rmir->hchild, w); | |
| 646 if (retval) return retval; | |
| 647 } | |
| 648 } | |
| 649 | |
| 650 return 0; | |
| 651 } | |
| 652 | |
| 653 /* Update the mirror structure for the given frame. */ | |
| 654 void | |
| 655 update_frame_window_mirror (struct frame *f) | |
| 656 { | |
| 617 | 657 f->root_mirror = |
| 658 wrap_window_mirror (update_mirror_internal | |
| 659 (f->root_window, | |
| 660 NILP (f->root_mirror) ? 0 : | |
| 661 XWINDOW_MIRROR (f->root_mirror))); | |
| 428 | 662 f->mirror_dirty = 0; |
| 663 } | |
| 664 | |
| 665 /* Free a given mirror structure along with all of its children as | |
| 666 well as their associated display structures. */ | |
| 667 void | |
| 668 free_window_mirror (struct window_mirror *mir) | |
| 669 { | |
| 670 while (mir) | |
| 671 { | |
| 672 if (mir->hchild) free_window_mirror (mir->hchild); | |
| 673 if (mir->vchild) free_window_mirror (mir->vchild); | |
| 674 #ifdef HAVE_SCROLLBARS | |
| 675 release_window_mirror_scrollbars (mir); | |
| 676 #endif | |
| 677 free_display_structs (mir); | |
| 678 mir = mir->next; | |
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679 /* not worth calling free_normal_lisp_object() -- window mirrors |
| 617 | 680 are not created that frequently and it's dangerous. we don't |
| 681 know for sure that there aren't other pointers around -- e.g. | |
| 682 in a scrollbar instance. */ | |
| 428 | 683 } |
| 684 } | |
| 685 | |
| 686 /* Given a mirror structure, return the window it mirrors. Calls | |
| 687 real_window_internal to do most of the work. */ | |
| 688 Lisp_Object | |
| 689 real_window (struct window_mirror *mir, int no_abort) | |
| 690 { | |
| 617 | 691 Lisp_Object retval = |
| 692 real_window_internal (mir->frame->root_window, | |
| 693 XWINDOW_MIRROR (mir->frame->root_mirror), mir); | |
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694 assert (!NILP (retval) || no_abort); |
| 428 | 695 |
| 696 return retval; | |
| 697 } | |
| 698 | |
| 699 /* Given a real window, return its mirror structure. Calls | |
| 700 find_window_mirror_internal to do all of the work. */ | |
| 701 struct window_mirror * | |
| 702 find_window_mirror (struct window *w) | |
| 703 { | |
| 704 struct frame *f = XFRAME (w->frame); | |
| 705 if (f->mirror_dirty) | |
| 706 update_frame_window_mirror (f); | |
| 617 | 707 return find_window_mirror_internal (f->root_window, |
| 708 XWINDOW_MIRROR (f->root_mirror), w); | |
| 428 | 709 } |
| 710 | |
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711 /* Given a real window, return its mirror structure, if it exists. |
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712 Don't do any updating. */ |
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713 static struct window_mirror * |
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714 find_window_mirror_maybe (struct window *w) |
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715 { |
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716 struct frame *f = XFRAME (w->frame); |
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717 if (!WINDOW_MIRRORP (f->root_mirror)) |
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718 return 0; |
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719 return find_window_mirror_internal (f->root_window, |
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720 XWINDOW_MIRROR (f->root_mirror), w); |
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721 } |
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722 |
| 428 | 723 /***************************************************************************** |
| 724 find_window_by_pixel_pos | |
| 725 | |
| 726 Given a pixel position relative to a frame, find the window at that | |
| 727 position. | |
| 728 ****************************************************************************/ | |
| 729 struct window * | |
| 730 find_window_by_pixel_pos (int pix_x, int pix_y, Lisp_Object win) | |
| 731 { | |
| 732 if (NILP (win)) | |
| 733 return 0; | |
| 734 | |
| 735 for (; !NILP (win); win = XWINDOW (win)->next) | |
| 736 { | |
| 737 struct window *w; | |
| 738 | |
| 739 if (!NILP (XWINDOW (win)->vchild)) | |
| 740 { | |
| 741 w = find_window_by_pixel_pos (pix_x, pix_y, XWINDOW (win)->vchild); | |
| 742 if (w) return w; | |
| 743 } | |
| 744 if (!NILP (XWINDOW (win)->hchild)) | |
| 745 { | |
| 746 w = find_window_by_pixel_pos (pix_x, pix_y, XWINDOW (win)->hchild); | |
| 747 if (w) return w; | |
| 748 } | |
| 749 w = XWINDOW (win); | |
| 750 if (pix_x >= WINDOW_LEFT (w) | |
| 751 && pix_x <= WINDOW_RIGHT (w) | |
| 752 && pix_y >= WINDOW_TOP (w) | |
| 753 && pix_y <= WINDOW_BOTTOM (w)) | |
| 754 return w; | |
| 755 } | |
| 756 return NULL; | |
| 757 } | |
| 758 | |
| 759 /* Return a pointer to the display structures for the given window. */ | |
| 760 display_line_dynarr * | |
| 761 window_display_lines (struct window *w, int which) | |
| 762 { | |
| 763 struct window_mirror *t; | |
| 764 | |
| 765 t = find_window_mirror (w); | |
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766 assert (t); |
| 428 | 767 |
| 768 if (which == CURRENT_DISP) | |
| 769 return t->current_display_lines; | |
| 770 else if (which == DESIRED_DISP) | |
| 771 return t->desired_display_lines; | |
| 772 else if (which == CMOTION_DISP) | |
| 773 /* The CMOTION_DISP display lines are global. */ | |
| 774 return cmotion_display_lines; | |
| 775 else | |
| 2500 | 776 ABORT (); |
| 428 | 777 |
| 778 return 0; /* shut up compiler */ | |
| 779 } | |
| 780 | |
| 781 struct buffer * | |
| 782 window_display_buffer (struct window *w) | |
| 783 { | |
| 784 struct window_mirror *t; | |
| 785 | |
| 786 t = find_window_mirror (w); | |
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787 assert (t); |
| 428 | 788 |
| 789 return t->buffer; | |
| 790 } | |
| 791 | |
| 792 void | |
| 793 set_window_display_buffer (struct window *w, struct buffer *b) | |
| 794 { | |
| 795 struct window_mirror *t; | |
| 796 | |
| 797 t = find_window_mirror (w); | |
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798 assert (t); |
| 428 | 799 |
| 800 t->buffer = b; | |
| 801 } | |
| 802 | |
| 803 | |
| 804 /* Determining a window's position based solely on its pixel | |
| 805 positioning doesn't work. Instead, we do it the intelligent way, | |
| 806 by checking its positioning in the window hierarchy. */ | |
| 807 int | |
| 808 window_is_leftmost (struct window *w) | |
| 809 { | |
| 810 Lisp_Object parent, current_ancestor, window; | |
| 811 | |
| 793 | 812 window = wrap_window (w); |
| 428 | 813 |
| 814 parent = XWINDOW (window)->parent; | |
| 815 current_ancestor = window; | |
| 816 | |
| 817 while (!NILP (parent)) | |
| 818 { | |
| 819 if (!NILP (XWINDOW (parent)->hchild) && | |
| 820 !EQ (XWINDOW (parent)->hchild, current_ancestor)) | |
| 821 return 0; | |
| 822 | |
| 823 current_ancestor = parent; | |
| 824 parent = XWINDOW (parent)->parent; | |
| 825 } | |
| 826 | |
| 827 return 1; | |
| 828 } | |
| 829 | |
| 830 int | |
| 831 window_is_rightmost (struct window *w) | |
| 832 { | |
| 833 Lisp_Object parent, current_ancestor, window; | |
| 834 | |
| 793 | 835 window = wrap_window (w); |
| 428 | 836 |
| 837 parent = XWINDOW (window)->parent; | |
| 838 current_ancestor = window; | |
| 839 | |
| 840 while (!NILP (parent)) | |
| 841 { | |
| 842 if (!NILP (XWINDOW (parent)->hchild) | |
| 843 && !NILP (XWINDOW (current_ancestor)->next)) | |
| 844 return 0; | |
| 845 | |
| 846 current_ancestor = parent; | |
| 847 parent = XWINDOW (parent)->parent; | |
| 848 } | |
| 849 | |
| 850 return 1; | |
| 851 } | |
| 852 | |
| 853 static int | |
| 854 window_full_width_p (struct window *w) | |
| 855 { | |
| 856 return window_is_leftmost (w) && window_is_rightmost (w); | |
| 857 } | |
| 858 | |
| 859 int | |
| 860 window_is_highest (struct window *w) | |
| 861 { | |
| 862 Lisp_Object parent, current_ancestor, window; | |
| 863 | |
| 793 | 864 window = wrap_window (w); |
| 428 | 865 |
| 866 parent = XWINDOW (window)->parent; | |
| 867 current_ancestor = window; | |
| 868 | |
| 869 while (!NILP (parent)) | |
| 870 { | |
| 871 if (!NILP (XWINDOW (parent)->vchild) && | |
| 872 !EQ (XWINDOW (parent)->vchild, current_ancestor)) | |
| 873 return 0; | |
| 874 | |
| 875 current_ancestor = parent; | |
| 876 parent = XWINDOW (parent)->parent; | |
| 877 } | |
| 878 | |
| 879 /* This is really to catch the minibuffer but we make it generic in | |
| 880 case we ever change things around to let the minibuffer be on top. */ | |
| 881 if (NILP (XWINDOW (current_ancestor)->prev)) | |
| 882 return 1; | |
| 883 else | |
| 884 return 0; | |
| 885 } | |
| 886 | |
| 887 int | |
| 888 window_is_lowest (struct window *w) | |
| 889 { | |
| 890 Lisp_Object parent, current_ancestor, window; | |
| 891 | |
| 793 | 892 window = wrap_window (w); |
| 428 | 893 |
| 894 parent = XWINDOW (window)->parent; | |
| 895 current_ancestor = window; | |
| 896 | |
| 897 while (!NILP (parent)) | |
| 898 { | |
| 899 if (!NILP (XWINDOW (parent)->vchild) | |
| 900 && !NILP (XWINDOW (current_ancestor)->next)) | |
| 901 return 0; | |
| 902 | |
| 903 current_ancestor = parent; | |
| 904 parent = XWINDOW (parent)->parent; | |
| 905 } | |
| 906 | |
| 907 return 1; | |
| 908 } | |
| 909 | |
| 910 #if 0 /* not currently used */ | |
| 911 | |
| 912 static int | |
| 913 window_full_height_p (struct window *w) | |
| 914 { | |
| 915 return window_is_highest (w) && window_is_lowest (w); | |
| 916 } | |
| 917 | |
| 918 #endif | |
| 919 | |
| 920 int | |
| 921 window_truncation_on (struct window *w) | |
| 922 { | |
| 923 /* Minibuffer windows are never truncated. | |
| 440 | 924 #### is this the right way ? */ |
| 428 | 925 if (MINI_WINDOW_P (w)) |
| 926 return 0; | |
| 927 | |
| 928 /* Horizontally scrolled windows are truncated. */ | |
| 929 if (w->hscroll) | |
| 930 return 1; | |
| 931 | |
| 932 /* If truncate_partial_width_windows is true and the window is not | |
| 933 the full width of the frame it is truncated. */ | |
| 707 | 934 if (!NILP (symbol_value_in_buffer (Qtruncate_partial_width_windows, |
| 935 w->buffer)) | |
| 428 | 936 && !(window_is_leftmost (w) && window_is_rightmost (w))) |
| 937 return 1; | |
| 938 | |
| 939 /* If the window's buffer's value of truncate_lines is non-nil, then | |
| 940 the window is truncated. */ | |
| 941 if (!NILP (XBUFFER (w->buffer)->truncate_lines)) | |
| 942 return 1; | |
| 943 | |
| 944 return 0; | |
| 945 } | |
| 946 | |
| 947 DEFUN ("window-truncated-p", Fwindow_truncated_p, 0, 1, 0, /* | |
| 442 | 948 Returns non-nil if text in the window is truncated. |
| 428 | 949 */ |
| 950 (window)) | |
| 951 { | |
| 952 struct window *w = decode_window (window); | |
| 953 | |
| 954 return window_truncation_on (w) ? Qt : Qnil; | |
| 955 } | |
| 956 | |
| 957 | |
| 958 static int | |
| 959 have_undivided_common_edge (struct window *w_right, void *closure) | |
| 960 { | |
| 961 struct window *w_left = (struct window *) closure; | |
| 962 return (WINDOW_RIGHT (w_left) == WINDOW_LEFT (w_right) | |
| 963 && WINDOW_TOP (w_left) < WINDOW_BOTTOM (w_right) | |
| 964 && WINDOW_TOP (w_right) < WINDOW_BOTTOM (w_left) | |
| 965 #ifdef HAVE_SCROLLBARS | |
| 966 && (NILP (w_right->scrollbar_on_left_p) | |
| 967 || NILP (w_right->vertical_scrollbar_visible_p) | |
| 968 || ZEROP (w_right->scrollbar_width)) | |
| 969 #endif | |
| 970 ); | |
| 971 } | |
| 972 | |
| 973 static int | |
| 974 window_needs_vertical_divider_1 (struct window *w) | |
| 975 { | |
| 976 /* Never if we're on the right */ | |
| 977 if (window_is_rightmost (w)) | |
| 978 return 0; | |
| 979 | |
| 980 /* Always if draggable */ | |
| 981 if (!NILP (w->vertical_divider_always_visible_p)) | |
| 982 return 1; | |
| 983 | |
| 984 #ifdef HAVE_SCROLLBARS | |
| 985 /* Our right scrollbar is enough to separate us at the right */ | |
| 986 if (NILP (w->scrollbar_on_left_p) | |
| 987 && !NILP (w->vertical_scrollbar_visible_p) | |
| 988 && !ZEROP (w->scrollbar_width)) | |
| 989 return 0; | |
| 990 #endif | |
| 991 | |
| 992 /* Ok. to determine whether we need a divider on the left, we must | |
| 993 check that our right neighbor windows have scrollbars on their | |
| 994 left sides. We must check all such windows which have common | |
| 995 left edge with our window's right edge. */ | |
| 996 return map_windows (XFRAME (WINDOW_FRAME (w)), | |
| 997 have_undivided_common_edge, (void*)w); | |
| 998 } | |
| 999 | |
| 1000 int | |
| 1001 window_needs_vertical_divider (struct window *w) | |
| 1002 { | |
| 1003 if (!w->need_vertical_divider_valid_p) | |
| 1004 { | |
| 1005 w->need_vertical_divider_p = | |
| 1006 window_needs_vertical_divider_1 (w); | |
| 1007 w->need_vertical_divider_valid_p = 1; | |
| 1008 } | |
| 1009 return w->need_vertical_divider_p; | |
| 1010 } | |
| 1011 | |
| 1012 /* Called from invalidate_vertical_divider_cache_in_frame */ | |
| 1013 int | |
| 1014 invalidate_vertical_divider_cache_in_window (struct window *w, | |
| 2286 | 1015 void *UNUSED (unused)) |
| 428 | 1016 { |
| 1017 w->need_vertical_divider_valid_p = 0; | |
| 1018 return 0; | |
| 1019 } | |
| 1020 | |
| 1021 /* Calculate width of vertical divider, including its shadows | |
| 1022 and spacing. The returned value is effectively the distance | |
| 1023 between adjacent window edges. This function does not check | |
| 1024 whether a window needs a vertical divider, so the returned | |
| 1025 value is a "theoretical" one */ | |
| 1026 int | |
| 1027 window_divider_width (struct window *w) | |
| 1028 { | |
| 1029 /* the shadow thickness can be negative. This means that the divider | |
| 1030 will have a depressed look */ | |
| 1031 | |
| 1032 if (FRAME_WIN_P (XFRAME (WINDOW_FRAME (w)))) | |
| 1033 return | |
|
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|
1034 XFIXNUM (w->vertical_divider_line_width) |
|
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|
1035 + 2 * XFIXNUM (w->vertical_divider_spacing) |
|
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1036 + 2 * abs (XFIXNUM (w->vertical_divider_shadow_thickness)); |
| 428 | 1037 else |
|
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1038 return XFIXNUM (w->vertical_divider_line_width) == 0 ? 0 : 1; |
| 428 | 1039 } |
| 1040 | |
| 1041 int | |
| 4932 | 1042 window_scrollbar_width (struct window * USED_IF_SCROLLBARS (w)) |
| 428 | 1043 { |
| 1044 #ifdef HAVE_SCROLLBARS | |
| 1045 if (!WINDOW_WIN_P (w) | |
| 1046 || MINI_WINDOW_P (w) | |
| 1047 || NILP (w->buffer) | |
| 1048 || NILP (w->vertical_scrollbar_visible_p)) | |
| 1049 /* #### when does NILP (w->buffer) happen? */ | |
| 1050 return 0; | |
| 1051 | |
|
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1052 return XFIXNUM (w->scrollbar_width); |
| 428 | 1053 #else |
| 1054 return 0; | |
| 1055 #endif /* HAVE_SCROLLBARS */ | |
| 1056 } | |
| 1057 | |
| 1058 /* Horizontal scrollbars are only active on windows with truncation | |
| 1059 turned on. */ | |
| 1060 int | |
| 4932 | 1061 window_scrollbar_height (struct window * USED_IF_SCROLLBARS (w)) |
| 428 | 1062 { |
| 1063 #ifdef HAVE_SCROLLBARS | |
| 1064 if (!WINDOW_WIN_P (w) | |
| 1065 || MINI_WINDOW_P (w) | |
| 1066 || NILP (w->buffer) | |
| 1067 || NILP (w->horizontal_scrollbar_visible_p) | |
| 1068 || !window_truncation_on (w)) | |
| 1069 return 0; | |
| 1070 | |
|
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|
1071 return XFIXNUM (w->scrollbar_height); |
| 428 | 1072 #else |
| 1073 return 0; | |
| 1074 #endif /* HAVE_SCROLLBARS */ | |
| 1075 } | |
| 1076 | |
| 1077 int | |
| 1078 window_modeline_height (struct window *w) | |
| 1079 { | |
| 1080 struct frame *f = XFRAME (w->frame); | |
| 1081 int modeline_height; | |
| 1082 | |
| 1083 if (MINI_WINDOW_P (w) || NILP (w->buffer)) | |
| 1084 { | |
| 1085 modeline_height = 0; | |
| 1086 } | |
| 1087 else if (!WINDOW_HAS_MODELINE_P (w)) | |
| 1088 { | |
| 1089 if (window_scrollbar_height (w)) | |
| 1090 modeline_height = 0; | |
| 1091 else | |
| 1092 { | |
| 1093 modeline_height = FRAMEMETH (f, divider_height, ()); | |
| 1094 | |
| 1095 if (!EQ (Qzero, w->modeline_shadow_thickness) && FRAME_WIN_P (f)) | |
| 1096 modeline_height += (2 * MODELINE_SHADOW_THICKNESS (w)); | |
| 1097 } | |
| 1098 } | |
| 1099 else | |
| 1100 { | |
| 1101 if (noninteractive) | |
| 1102 modeline_height = 0; | |
| 1103 else | |
| 1104 { | |
| 1105 display_line_dynarr *dla; | |
| 1106 | |
| 1107 /* We don't force a regeneration of the modeline here. | |
| 1108 Instead it is now a precondition that any function calling | |
| 1109 this should make sure that one of these structures is | |
| 1110 up-to-date. In practice this only affects two internal | |
| 1111 redisplay functions, regenerate_window and | |
| 1112 regenerate_window_point_center. */ | |
| 1113 /* We check DESIRED_DISP because if it is valid it is more | |
| 1114 up-to-date than CURRENT_DISP. For calls to this outside | |
| 1115 of redisplay it doesn't matter which structure we check | |
| 1116 since there is a redisplay condition that these | |
| 1117 structures be identical outside of redisplay. */ | |
| 1118 dla = window_display_lines (w, DESIRED_DISP); | |
| 4967 | 1119 if (dla && Dynarr_length (dla) && Dynarr_begin (dla)->modeline) |
| 1120 modeline_height = (Dynarr_begin (dla)->ascent + | |
| 1121 Dynarr_begin (dla)->descent); | |
| 428 | 1122 else |
| 1123 { | |
| 1124 dla = window_display_lines (w, CURRENT_DISP); | |
| 4967 | 1125 if (dla && Dynarr_length (dla) && Dynarr_begin (dla)->modeline) |
| 1126 modeline_height = (Dynarr_begin (dla)->ascent + | |
| 1127 Dynarr_begin (dla)->descent); | |
| 428 | 1128 else |
| 1129 /* This should be an abort except I'm not yet 100% | |
| 1130 confident that it won't ever get hit (though I | |
| 1131 haven't been able to trigger it). It is extremely | |
| 1132 unlikely to cause any noticeable problem and even if | |
| 1133 it does it will be a minor display glitch. */ | |
| 1134 /* #### Bullshit alert. It does get hit and it causes | |
| 1135 noticeable glitches. real_current_modeline_height | |
| 1136 is a kludge to fix this for 19.14. */ | |
| 1137 modeline_height = real_current_modeline_height (w); | |
| 1138 } | |
| 1139 | |
| 1140 if (!EQ (Qzero, w->modeline_shadow_thickness) && FRAME_WIN_P (f)) | |
| 1141 modeline_height += (2 * MODELINE_SHADOW_THICKNESS (w)); | |
| 1142 } | |
| 1143 } | |
| 1144 | |
| 1145 return modeline_height; | |
| 1146 } | |
| 1147 | |
| 1148 /***************************************************************************** | |
| 1149 margin_width_internal | |
| 1150 | |
| 1151 For a given window, return the width in pixels of the specified margin. | |
| 1152 ****************************************************************************/ | |
| 1153 static int | |
| 1154 margin_width_internal (struct window *w, int left_margin) | |
| 1155 { | |
| 1156 int window_cwidth = window_char_width (w, 1); | |
| 1157 int margin_cwidth; | |
| 1158 int font_width; | |
| 1159 Lisp_Object window; | |
| 1160 | |
| 1161 /* We might be getting called on a non-leaf. */ | |
| 1162 if (NILP (w->buffer)) | |
| 1163 return 0; | |
| 1164 | |
| 1165 /* The minibuffer never has margins. */ | |
| 1166 if (MINI_WINDOW_P (w)) | |
| 1167 return 0; | |
| 1168 | |
| 793 | 1169 window = wrap_window (w); |
|
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|
1170 margin_cwidth = (left_margin ? XFIXNUM (w->left_margin_width) : |
|
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|
1171 XFIXNUM (w->right_margin_width)); |
| 428 | 1172 |
|
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1173 default_face_width_and_height (window, &font_width, 0); |
| 428 | 1174 |
| 1175 /* The left margin takes precedence over the right margin so we | |
| 1176 subtract its width from the space available for the right | |
| 1177 margin. */ | |
| 1178 if (!left_margin) | |
|
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|
1179 window_cwidth -= XFIXNUM (w->left_margin_width); |
| 428 | 1180 |
| 1181 /* The margin cannot be wider than the window is. We allow the | |
| 1182 value to be bigger since it is possible for the user to enlarge | |
| 1183 the window such that the left margin value would no longer be too | |
| 1184 big, but we won't return a value that is larger. */ | |
| 1185 if (margin_cwidth > window_cwidth) | |
| 1186 margin_cwidth = window_cwidth; | |
| 1187 | |
| 1188 /* At the user level the margin is always specified in characters. | |
| 1189 Internally however it is manipulated in terms of pixels. */ | |
| 1190 return margin_cwidth * font_width; | |
| 1191 } | |
| 1192 | |
| 1193 int | |
| 1194 window_left_margin_width (struct window *w) | |
| 1195 { | |
| 1196 return margin_width_internal (w, 1); | |
| 1197 } | |
| 1198 | |
| 1199 int | |
| 1200 window_right_margin_width (struct window *w) | |
| 1201 { | |
| 1202 return margin_width_internal (w, 0); | |
| 1203 } | |
| 1204 | |
| 1205 /***************************************************************************** | |
| 1206 Window Gutters | |
| 1207 | |
| 1208 The gutters of a window are those areas in the boundary defined by | |
| 1209 w->pixel_top, w->pixel_left, w->pixel_height and w->pixel_width which | |
| 1210 do not contain text. Items which may be in the gutters include | |
| 1211 scrollbars, toolbars and modelines. The margin areas are not | |
| 1212 included. This is an exception made because redisplay special cases | |
| 1213 the handling of those areas in many places in such a way that | |
| 1214 including them in the gutter area would make life difficult. | |
| 1215 | |
| 1216 The size functions refer to height for the bottom and top gutters and | |
| 1217 width for the left and right gutters. The starting position | |
| 1218 functions refer to the Y coord for bottom and top gutters and the X | |
| 1219 coord for left and right gutters. All starting positions are | |
| 1220 relative to the frame, not the window. | |
| 1221 ****************************************************************************/ | |
| 1222 | |
| 442 | 1223 static int |
| 1224 window_top_window_gutter_height (struct window *w) | |
| 1225 { | |
| 428 | 1226 if (!NILP (w->hchild) || !NILP (w->vchild)) |
| 1227 return 0; | |
| 1228 | |
| 1229 #ifdef HAVE_SCROLLBARS | |
| 1230 if (!NILP (w->scrollbar_on_top_p)) | |
| 442 | 1231 return window_scrollbar_height (w); |
| 428 | 1232 else |
| 1233 #endif | |
| 442 | 1234 return 0; |
| 428 | 1235 } |
| 1236 | |
| 1237 int | |
| 442 | 1238 window_top_gutter_height (struct window *w) |
| 1239 { | |
| 1240 return window_top_window_gutter_height (w); | |
| 1241 } | |
| 1242 | |
| 1243 static int | |
| 1244 window_bottom_window_gutter_height (struct window *w) | |
| 1245 { | |
| 1246 int gutter; | |
| 428 | 1247 |
| 1248 if (!NILP (w->hchild) || !NILP (w->vchild)) | |
| 1249 return 0; | |
| 1250 | |
| 442 | 1251 gutter = window_modeline_height (w); |
| 428 | 1252 |
| 1253 #ifdef HAVE_SCROLLBARS | |
| 1254 if (NILP (w->scrollbar_on_top_p)) | |
| 1255 return window_scrollbar_height (w) + gutter; | |
| 1256 else | |
| 1257 #endif | |
| 1258 return gutter; | |
| 1259 } | |
| 1260 | |
| 1261 int | |
| 442 | 1262 window_bottom_gutter_height (struct window *w) |
| 1263 { | |
| 1264 return window_bottom_window_gutter_height (w); | |
| 1265 } | |
| 1266 | |
| 1267 static int | |
| 4932 | 1268 window_left_window_gutter_width (struct window *w, |
| 1269 int USED_IF_SCROLLBARS (modeline)) | |
| 442 | 1270 { |
| 428 | 1271 if (!NILP (w->hchild) || !NILP (w->vchild)) |
| 1272 return 0; | |
| 1273 | |
| 1274 #ifdef HAVE_SCROLLBARS | |
| 1275 if (!modeline && !NILP (w->scrollbar_on_left_p)) | |
| 442 | 1276 return window_scrollbar_width (w); |
| 428 | 1277 #endif |
| 1278 | |
| 442 | 1279 return 0; |
| 428 | 1280 } |
| 1281 | |
| 1282 int | |
| 442 | 1283 window_left_gutter_width (struct window *w, int modeline) |
| 1284 { | |
| 1285 return window_left_window_gutter_width (w, modeline); | |
| 1286 } | |
| 1287 | |
| 1288 static int | |
| 4932 | 1289 window_right_window_gutter_width (struct window *w, |
| 1290 int USED_IF_SCROLLBARS (modeline)) | |
| 442 | 1291 { |
| 1292 int gutter = 0; | |
| 428 | 1293 |
| 1294 if (!NILP (w->hchild) || !NILP (w->vchild)) | |
| 1295 return 0; | |
| 1296 | |
| 1297 #ifdef HAVE_SCROLLBARS | |
| 1298 if (!modeline && NILP (w->scrollbar_on_left_p)) | |
| 1299 gutter += window_scrollbar_width (w); | |
| 1300 #endif | |
| 1301 | |
| 1302 if (window_needs_vertical_divider (w)) | |
| 1303 gutter += window_divider_width (w); | |
| 1304 | |
| 1305 return gutter; | |
| 1306 } | |
| 1307 | |
| 442 | 1308 int |
| 1309 window_right_gutter_width (struct window *w, int modeline) | |
| 1310 { | |
| 1311 return window_right_window_gutter_width (w, modeline); | |
| 1312 } | |
| 1313 | |
| 1314 static int | |
| 1315 window_pixel_height (struct window* w) | |
| 1316 { | |
| 1317 return WINDOW_HEIGHT (w); | |
| 1318 } | |
| 1319 | |
| 428 | 1320 |
| 1321 DEFUN ("windowp", Fwindowp, 1, 1, 0, /* | |
| 444 | 1322 Return t if OBJECT is a window. |
| 428 | 1323 */ |
| 444 | 1324 (object)) |
| 1325 { | |
| 1326 return WINDOWP (object) ? Qt : Qnil; | |
| 428 | 1327 } |
| 1328 | |
| 1329 DEFUN ("window-live-p", Fwindow_live_p, 1, 1, 0, /* | |
| 444 | 1330 Return t if OBJECT is a window which is currently visible. |
| 428 | 1331 */ |
| 444 | 1332 (object)) |
| 1333 { | |
| 1334 return WINDOWP (object) && WINDOW_LIVE_P (XWINDOW (object)) | |
| 1335 ? Qt : Qnil; | |
| 428 | 1336 } |
| 1337 | |
| 1338 DEFUN ("selected-window", Fselected_window, 0, 1, 0, /* | |
| 1339 Return the window that the cursor now appears in and commands apply to. | |
| 1340 If the optional argument CON-DEV-OR-FRAME is specified and is a frame, return | |
| 1341 the selected window used by that frame. If CON-DEV-OR-FRAME is a device, | |
| 1342 then the selected frame on that device will be used. If CON-DEV-OR-FRAME | |
| 1343 is a console, the selected frame on that console's selected device will | |
| 1344 be used. Otherwise, the selected frame is used. | |
| 1345 */ | |
| 1346 (con_dev_or_frame)) | |
| 1347 { | |
| 1348 if (NILP (con_dev_or_frame) && NILP (Fselected_device (Qnil))) | |
| 1349 return Qnil; /* happens at startup */ | |
| 1350 | |
| 1351 { | |
| 1352 struct frame *f = decode_frame_or_selected (con_dev_or_frame); | |
| 1353 return FRAME_SELECTED_WINDOW (f); | |
| 1354 } | |
| 1355 } | |
| 1356 | |
| 1357 DEFUN ("last-nonminibuf-window", Flast_nonminibuf_window, 0, 1, 0, /* | |
| 1358 Return the last selected window that is not a minibuffer window. | |
| 1359 If the optional argument CON-DEV-OR-FRAME is specified and is a frame, | |
| 1360 return the last non-minibuffer window used by that frame. If | |
| 1361 CON-DEV-OR-FRAME is a device, then the selected frame on that device | |
| 1362 will be used. If CON-DEV-OR-FRAME is a console, the selected frame on | |
| 1363 that console's selected device will be used. Otherwise, the selected | |
| 1364 frame is used. | |
| 1365 */ | |
| 1366 (con_dev_or_frame)) | |
| 1367 { | |
| 1368 if (NILP (con_dev_or_frame) && NILP (Fselected_device (Qnil))) | |
| 1369 return Qnil; /* happens at startup */ | |
| 1370 | |
| 1371 { | |
| 1372 struct frame *f = decode_frame_or_selected (con_dev_or_frame); | |
| 1373 return FRAME_LAST_NONMINIBUF_WINDOW (f); | |
| 1374 } | |
| 1375 } | |
| 1376 | |
| 1377 DEFUN ("minibuffer-window", Fminibuffer_window, 0, 1, 0, /* | |
| 1378 Return the window used now for minibuffers. | |
| 1379 If the optional argument CON-DEV-OR-FRAME is specified and is a frame, return | |
| 1380 the minibuffer window used by that frame. If CON-DEV-OR-FRAME is a device, | |
| 1381 then the selected frame on that device will be used. If CON-DEV-OR-FRAME | |
| 1382 is a console, the selected frame on that console's selected device will | |
| 1383 be used. Otherwise, the selected frame is used. | |
| 1384 */ | |
| 1385 (con_dev_or_frame)) | |
| 1386 { | |
| 1387 return FRAME_MINIBUF_WINDOW (decode_frame_or_selected (con_dev_or_frame)); | |
| 1388 } | |
| 1389 | |
| 438 | 1390 DEFUN ("window-minibuffer-p", Fwindow_minibuffer_p, 0, 1, 0, /* |
| 428 | 1391 Return non-nil if WINDOW is a minibuffer window. |
| 1392 */ | |
| 1393 (window)) | |
| 1394 { | |
| 1395 return MINI_WINDOW_P (decode_window (window)) ? Qt : Qnil; | |
| 1396 } | |
| 1397 | |
| 1398 DEFUN ("window-first-hchild", Fwindow_first_hchild, 1, 1, 0, /* | |
| 1399 Return the first horizontal child of WINDOW, or nil. | |
| 1400 */ | |
| 1401 (window)) | |
| 1402 { | |
| 1403 return decode_window (window)->hchild; | |
| 1404 } | |
| 1405 | |
| 1406 DEFUN ("window-first-vchild", Fwindow_first_vchild, 1, 1, 0, /* | |
| 1407 Return the first vertical child of WINDOW, or nil. | |
| 1408 */ | |
| 1409 (window)) | |
| 1410 { | |
| 1411 return decode_window (window)->vchild; | |
| 1412 } | |
| 1413 | |
| 1414 DEFUN ("window-next-child", Fwindow_next_child, 1, 1, 0, /* | |
| 1415 Return the next window on the same level as WINDOW, or nil. | |
| 1416 */ | |
| 1417 (window)) | |
| 1418 { | |
| 1419 return decode_window (window)->next; | |
| 1420 } | |
| 1421 | |
| 1422 DEFUN ("window-previous-child", Fwindow_previous_child, 1, 1, 0, /* | |
| 1423 Return the previous window on the same level as WINDOW, or nil. | |
| 1424 */ | |
| 1425 (window)) | |
| 1426 { | |
| 1427 return decode_window (window)->prev; | |
| 1428 } | |
| 1429 | |
| 1430 DEFUN ("window-parent", Fwindow_parent, 1, 1, 0, /* | |
| 1431 Return the parent of WINDOW, or nil. | |
| 1432 */ | |
| 1433 (window)) | |
| 1434 { | |
| 1435 return decode_window (window)->parent; | |
| 1436 } | |
| 1437 | |
| 1438 DEFUN ("window-lowest-p", Fwindow_lowest_p, 1, 1, 0, /* | |
| 1439 Return non-nil if WINDOW is along the bottom of its frame. | |
| 1440 */ | |
| 1441 (window)) | |
| 1442 { | |
| 1443 return window_is_lowest (decode_window (window)) ? Qt : Qnil; | |
| 1444 } | |
| 1445 | |
| 1446 DEFUN ("window-highest-p", Fwindow_highest_p, 1, 1, 0, /* | |
| 1447 Return non-nil if WINDOW is along the top of its frame. | |
| 1448 */ | |
| 1449 (window)) | |
| 1450 { | |
| 1451 return window_is_highest (decode_window (window)) ? Qt : Qnil; | |
| 1452 } | |
| 1453 | |
| 1454 DEFUN ("window-leftmost-p", Fwindow_leftmost_p, 1, 1, 0, /* | |
| 1455 Return non-nil if WINDOW is along the left edge of its frame. | |
| 1456 */ | |
| 1457 (window)) | |
| 1458 { | |
| 1459 return window_is_leftmost (decode_window (window)) ? Qt : Qnil; | |
| 1460 } | |
| 1461 | |
| 1462 DEFUN ("window-rightmost-p", Fwindow_rightmost_p, 1, 1, 0, /* | |
| 1463 Return non-nil if WINDOW is along the right edge of its frame. | |
| 1464 */ | |
| 1465 (window)) | |
| 1466 { | |
| 1467 return window_is_rightmost (decode_window (window)) ? Qt : Qnil; | |
| 1468 } | |
| 1469 | |
| 1708 | 1470 DEFUN ("pos-visible-in-window-p", Fpos_visible_in_window_p, 0, 3, 0, /* |
| 1471 Returns t if position POS is currently on the frame in WINDOW. | |
| 428 | 1472 Returns nil if that position is scrolled vertically out of view. |
| 1708 | 1473 If a character is only partially visible, nil is returned, unless the |
| 1474 optional argument PARTIALLY is non-nil. | |
| 428 | 1475 POS defaults to point in WINDOW's buffer; WINDOW, to the selected window. |
| 1476 */ | |
| 1708 | 1477 (pos, window, partially)) |
| 428 | 1478 { |
| 1479 struct window *w = decode_window (window); | |
| 665 | 1480 Charbpos top = marker_position (w->start[CURRENT_DISP]); |
| 1481 Charbpos posint; | |
| 428 | 1482 struct buffer *buf = XBUFFER (w->buffer); |
| 1483 | |
| 1484 if (NILP (pos)) | |
| 1485 posint = BUF_PT (buf); | |
| 1486 else | |
| 1487 { | |
|
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|
1488 CHECK_FIXNUM_COERCE_MARKER (pos); |
|
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1489 posint = XFIXNUM (pos); |
| 428 | 1490 } |
| 1491 | |
| 1492 if (posint < top || posint > BUF_ZV (buf)) | |
| 1493 return Qnil; | |
| 1494 | |
| 1495 /* w->start can be out of range. If it is, do something reasonable. */ | |
| 1496 if (top < BUF_BEGV (buf) || top > BUF_ZV (buf)) | |
| 1497 return Qnil; | |
| 1498 | |
| 1708 | 1499 return point_would_be_visible (w, top, posint, !NILP (partially)) |
| 1500 ? Qt : Qnil; | |
| 428 | 1501 } |
| 1502 | |
| 1503 | |
| 1504 struct window * | |
| 1505 decode_window (Lisp_Object window) | |
| 1506 { | |
| 1507 if (NILP (window)) | |
| 1508 return XWINDOW (Fselected_window (Qnil)); | |
| 1509 | |
| 1510 CHECK_LIVE_WINDOW (window); | |
| 1511 return XWINDOW (window); | |
| 1512 } | |
| 1513 | |
| 872 | 1514 int |
| 1515 window_live_p (struct window *w) | |
| 1516 { | |
| 1517 return WINDOW_LIVE_P (w); | |
| 1518 } | |
| 1519 | |
| 1520 Lisp_Object | |
| 1521 window_frame (struct window *w) | |
| 1522 { | |
| 1523 return WINDOW_FRAME (w); | |
| 1524 } | |
| 1525 | |
| 1526 Lisp_Object | |
| 1527 window_buffer (struct window *w) | |
| 1528 { | |
| 1529 return WINDOW_BUFFER (w); | |
| 1530 } | |
| 1531 | |
| 428 | 1532 DEFUN ("window-buffer", Fwindow_buffer, 0, 1, 0, /* |
| 1533 Return the buffer that WINDOW is displaying. | |
| 1534 */ | |
| 1535 (window)) | |
| 1536 { | |
| 1537 return decode_window (window)->buffer; | |
| 1538 } | |
| 1539 | |
| 1540 DEFUN ("window-frame", Fwindow_frame, 0, 1, 0, /* | |
| 1541 Return the frame that window WINDOW is on. | |
| 1542 */ | |
| 1543 (window)) | |
| 1544 { | |
| 1545 return decode_window (window)->frame; | |
| 1546 } | |
| 1547 | |
| 1548 DEFUN ("window-height", Fwindow_height, 0, 1, 0, /* | |
| 1549 Return the number of default lines in WINDOW. | |
| 1550 This actually works by dividing the window's pixel height (including | |
| 1551 the modeline and horizontal scrollbar, if any) by the height of the | |
| 1552 default font; therefore, the number of displayed lines will probably | |
| 1553 be different. | |
| 1554 Use `window-height' to get consistent results in geometry calculations. | |
| 1555 Use `window-displayed-height' to get the actual number of lines | |
| 1556 currently displayed in a window. | |
| 442 | 1557 |
| 1558 The names are somewhat confusing; here's a table to help out: | |
| 1559 | |
| 1560 width height | |
| 1561 ------------------------------------------------------------------------- | |
| 1562 w/o gutters | |
| 1563 (rows/columns) window-width window-text-area-height | |
| 1564 (pixels) window-text-area-pixel-width window-text-area-pixel-height | |
| 1565 | |
| 1566 with gutters | |
| 1567 (rows/columns) window-full-width window-height | |
| 1568 (pixels) window-pixel-width window-pixel-height | |
| 1569 | |
| 1570 actually displayed | |
| 1571 (rows/columns) ---- window-displayed-height | |
| 1572 (pixels) ---- window-displayed-text-pixel-height | |
| 428 | 1573 */ |
| 1574 (window)) | |
| 1575 { | |
|
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1576 return make_fixnum (window_char_height (decode_window (window), 1)); |
| 428 | 1577 } |
| 1578 | |
| 1579 DEFUN ("window-displayed-height", Fwindow_displayed_height, 0, 1, 0, /* | |
| 1580 Return the number of lines currently displayed in WINDOW. | |
| 1581 This counts the actual number of lines displayed in WINDOW | |
| 1582 \(as opposed to `window-height'). The modeline and horizontal | |
| 1583 scrollbar do not count as lines. If there is some blank space | |
| 1584 between the end of the buffer and the end of the window, this | |
| 1585 function pretends that there are lines of text in the default | |
| 1586 font there. | |
| 1587 */ | |
| 1588 (window)) | |
| 1589 { | |
|
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1590 return make_fixnum (window_displayed_height (decode_window (window))); |
| 428 | 1591 } |
| 1592 | |
| 1593 DEFUN ("window-pixel-height", Fwindow_pixel_height, 0, 1, 0, /* | |
| 1594 Return the height of WINDOW in pixels. Defaults to current window. | |
| 1595 This includes the window's modeline and horizontal scrollbar (if any). | |
| 1596 */ | |
| 1597 (window)) | |
| 1598 { | |
|
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1599 return make_fixnum (window_pixel_height (decode_window (window))); |
| 442 | 1600 } |
| 1601 | |
| 1602 DEFUN ("window-text-area-height", Fwindow_text_area_height, 0, 1, 0, /* | |
| 1603 Return the number of default lines in the text area of WINDOW. | |
| 1604 This actually works by dividing the window's text area pixel height (i.e. | |
| 1605 excluding the modeline and horizontal scrollbar, if any) by the height of the | |
| 1606 default font; therefore, the number of displayed lines will probably | |
| 1607 be different. | |
| 1608 See also `window-height' and `window-displayed-height'. | |
| 1609 */ | |
| 1610 (window)) | |
| 1611 { | |
|
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1612 return make_fixnum (window_char_height (decode_window (window), 0)); |
| 428 | 1613 } |
| 1614 | |
| 1615 DEFUN ("window-text-area-pixel-height", | |
| 1616 Fwindow_text_area_pixel_height, 0, 1, 0, /* | |
| 1617 Return the height in pixels of the text-displaying portion of WINDOW. | |
| 1618 Unlike `window-pixel-height', the space occupied by the modeline and | |
| 1619 horizontal scrollbar, if any, is not counted. | |
| 1620 */ | |
| 1621 (window)) | |
| 1622 { | |
| 1623 struct window *w = decode_window (window); | |
| 1624 | |
|
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1625 return make_fixnum (WINDOW_TEXT_HEIGHT (w)); |
| 428 | 1626 } |
| 1627 | |
| 1628 DEFUN ("window-displayed-text-pixel-height", | |
| 1629 Fwindow_displayed_text_pixel_height, 0, 2, 0, /* | |
| 1630 Return the height in pixels of the text displayed in WINDOW. | |
| 1631 Unlike `window-text-area-pixel-height', any blank space below the | |
| 1632 end of the buffer is not included. If optional argument NOCLIPPED | |
| 1633 is non-nil, do not include space occupied by clipped lines. | |
| 1634 */ | |
| 1635 (window, noclipped)) | |
| 1636 { | |
| 1637 struct window *w; | |
| 665 | 1638 Charbpos start, eobuf; |
| 428 | 1639 int defheight; |
| 1640 int hlimit, height, prev_height = -1; | |
| 1641 int line; | |
| 1642 int elt, nelt, i; | |
| 1643 int needed; | |
| 1644 line_start_cache_dynarr *cache; | |
| 1645 | |
| 1646 if (NILP (window)) | |
| 1647 window = Fselected_window (Qnil); | |
| 1648 | |
| 1649 CHECK_LIVE_WINDOW (window); | |
| 1650 w = XWINDOW (window); | |
| 1651 | |
| 1652 start = marker_position (w->start[CURRENT_DISP]); | |
| 1653 hlimit = WINDOW_TEXT_HEIGHT (w); | |
| 1654 eobuf = BUF_ZV (XBUFFER (w->buffer)); | |
| 1655 | |
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1656 default_face_width_and_height (window, NULL, &defheight); |
| 428 | 1657 |
| 1658 /* guess lines needed in line start cache + a few extra */ | |
| 1659 needed = (hlimit + defheight-1) / defheight + 3; | |
| 1660 | |
| 1661 while (1) { | |
| 1662 elt = point_in_line_start_cache (w, start, needed); | |
| 1663 assert (elt >= 0); /* in the cache */ | |
| 1664 | |
| 1665 cache = w->line_start_cache; | |
| 1666 nelt = Dynarr_length (cache); | |
| 1667 | |
| 1668 height = 0; | |
| 1669 for (i = elt; i < nelt; i++) { | |
| 1670 line = Dynarr_atp (cache, i)->height; | |
| 1671 | |
| 1672 if (height + line > hlimit) | |
|
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1673 return make_fixnum (!NILP (noclipped) ? height : hlimit); |
| 428 | 1674 |
| 1675 height += line; | |
| 1676 | |
| 1677 if (height == hlimit || Dynarr_atp (cache, i)->end >= eobuf) | |
|
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1678 return make_fixnum (height); |
| 428 | 1679 } |
| 1680 | |
| 1681 /* get here => need more cache lines. try again. */ | |
| 1682 assert(height > prev_height); /* progress? */ | |
| 1683 prev_height = height; | |
| 1684 | |
| 1685 needed += ((hlimit - height)*(nelt - elt) + height-1)/height + 3; | |
| 1686 } | |
| 1687 | |
|
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1688 RETURN_NOT_REACHED(make_fixnum (0)); /* shut up compiler */ |
| 428 | 1689 } |
| 1690 | |
| 1691 DEFUN ("window-width", Fwindow_width, 0, 1, 0, /* | |
| 1692 Return the number of display columns in WINDOW. | |
| 442 | 1693 This is the width that is usable columns available for text in WINDOW, |
| 1694 and does not include vertical scrollbars, dividers, or the like. See also | |
| 1695 `window-full-width' and `window-height'. | |
| 428 | 1696 */ |
| 1697 (window)) | |
| 1698 { | |
|
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|
1699 return make_fixnum (window_char_width (decode_window (window), 0)); |
| 428 | 1700 } |
| 1701 | |
| 442 | 1702 DEFUN ("window-full-width", Fwindow_full_width, 0, 1, 0, /* |
| 1703 Return the total number of columns in WINDOW. | |
| 1704 This is like `window-width' but includes vertical scrollbars, dividers, | |
| 1705 etc. | |
| 1706 */ | |
| 1707 (window)) | |
| 1708 { | |
|
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|
1709 return make_fixnum (window_char_width (decode_window (window), 1)); |
| 442 | 1710 } |
| 1711 | |
| 428 | 1712 DEFUN ("window-pixel-width", Fwindow_pixel_width, 0, 1, 0, /* |
| 1713 Return the width of WINDOW in pixels. Defaults to current window. | |
| 1714 */ | |
| 1715 (window)) | |
| 1716 { | |
|
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|
1717 return make_fixnum (decode_window (window)->pixel_width); |
| 428 | 1718 } |
| 1719 | |
| 1720 DEFUN ("window-text-area-pixel-width", | |
| 1721 Fwindow_text_area_pixel_width, 0, 1, 0, /* | |
| 1722 Return the width in pixels of the text-displaying portion of WINDOW. | |
| 1723 Unlike `window-pixel-width', the space occupied by the vertical | |
| 1724 scrollbar or divider, if any, is not counted. | |
| 1725 */ | |
| 1726 (window)) | |
| 1727 { | |
| 1728 struct window *w = decode_window (window); | |
| 1729 | |
|
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1730 return make_fixnum (WINDOW_TEXT_WIDTH (w)); |
| 428 | 1731 } |
| 1732 | |
| 1733 DEFUN ("window-hscroll", Fwindow_hscroll, 0, 1, 0, /* | |
| 1734 Return the number of columns by which WINDOW is scrolled from left margin. | |
| 1735 */ | |
| 1736 (window)) | |
| 1737 { | |
|
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|
1738 return make_fixnum (decode_window (window)->hscroll); |
| 428 | 1739 } |
| 1740 | |
| 1741 DEFUN ("modeline-hscroll", Fmodeline_hscroll, 0, 1, 0, /* | |
| 442 | 1742 Return the horizontal scrolling amount of WINDOW's modeline. |
| 438 | 1743 If the window has no modeline, return nil. |
| 428 | 1744 */ |
| 1745 (window)) | |
| 1746 { | |
| 1747 struct window *w = decode_window (window); | |
| 1748 | |
|
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|
1749 return (WINDOW_HAS_MODELINE_P (w)) ? make_fixnum ((int) w->modeline_hscroll) : |
| 438 | 1750 Qnil; |
| 428 | 1751 } |
| 1752 | |
| 1753 DEFUN ("set-modeline-hscroll", Fset_modeline_hscroll, 2, 2, 0, /* | |
| 442 | 1754 Set the horizontal scrolling amount of WINDOW's modeline to NCOL. |
| 438 | 1755 If NCOL is negative, it will silently be forced to 0. |
| 1756 If the window has no modeline, return nil. Otherwise, return the actual | |
| 1757 value that was set. | |
| 428 | 1758 */ |
| 1759 (window, ncol)) | |
| 1760 { | |
| 1761 struct window *w = decode_window (window); | |
| 1762 | |
| 1763 if (WINDOW_HAS_MODELINE_P (w)) | |
| 1764 { | |
| 438 | 1765 Charcount ncols; |
| 1766 | |
|
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|
1767 CHECK_FIXNUM (ncol); |
|
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|
1768 ncols = (XFIXNUM (ncol) <= 0) ? 0 : (Charcount) XFIXNUM (ncol); |
| 438 | 1769 if (ncols != w->modeline_hscroll) |
| 1770 { | |
| 1771 MARK_MODELINE_CHANGED; | |
| 1772 w->modeline_hscroll = ncols; | |
| 1773 } | |
|
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1774 return make_fixnum ((int) ncols); |
| 428 | 1775 } |
| 438 | 1776 |
| 428 | 1777 return Qnil; |
| 1778 } | |
| 1779 | |
| 1780 DEFUN ("set-window-hscroll", Fset_window_hscroll, 2, 2, 0, /* | |
| 1781 Set number of columns WINDOW is scrolled from left margin to NCOL. | |
| 1782 NCOL should be zero or positive. | |
| 1783 */ | |
| 1784 (window, ncol)) | |
| 1785 { | |
| 1786 struct window *w; | |
| 1787 int ncols; | |
| 1788 | |
|
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1789 CHECK_FIXNUM (ncol); |
|
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1790 ncols = XFIXNUM (ncol); |
| 428 | 1791 if (ncols < 0) ncols = 0; |
| 1792 w = decode_window (window); | |
| 1793 if (w->hscroll != ncols) | |
| 1794 MARK_CLIP_CHANGED; /* FSF marks differently but we aren't FSF. */ | |
| 1795 w->hscroll = ncols; | |
| 1796 return ncol; | |
| 1797 } | |
| 1798 | |
| 1799 DEFUN ("window-pixel-edges", Fwindow_pixel_edges, 0, 1, 0, /* | |
| 1800 Return a list of the pixel edge coordinates of WINDOW. | |
| 444 | 1801 The returned list is of the form (LEFT TOP RIGHT BOTTOM), |
| 1802 all relative to 0, 0 at the top left corner of WINDOW's frame. | |
| 1803 The frame toolbars, menubars and gutters are considered to be outside | |
| 1804 of this area, while the scrollbars are considered to be inside. | |
| 428 | 1805 */ |
| 1806 (window)) | |
| 1807 { | |
| 1808 struct window *w = decode_window (window); | |
| 1809 struct frame *f = XFRAME (w->frame); | |
| 1810 | |
| 5090 | 1811 int left = w->pixel_left - FRAME_PANED_LEFT_EDGE (f); |
| 1812 int top = w->pixel_top - FRAME_PANED_TOP_EDGE (f); | |
| 428 | 1813 |
|
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1814 return list4 (make_fixnum (left), |
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1815 make_fixnum (top), |
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1816 make_fixnum (left + w->pixel_width), |
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1817 make_fixnum (top + w->pixel_height)); |
| 428 | 1818 } |
| 1819 | |
| 1820 DEFUN ("window-text-area-pixel-edges", | |
| 1821 Fwindow_text_area_pixel_edges, 0, 1, 0, /* | |
| 1822 Return a list of the pixel edge coordinates of the text area of WINDOW. | |
| 444 | 1823 The returned list is of the form (LEFT TOP RIGHT BOTTOM), |
| 1824 all relative to 0, 0 at the top left corner of the total area allocated | |
| 1825 to the window, which includes the scrollbars. | |
| 428 | 1826 */ |
| 1827 (window)) | |
| 1828 { | |
| 1829 struct window *w = decode_window (window); | |
| 1830 | |
| 1831 int left = window_left_gutter_width (w, /* modeline = */ 0); | |
| 1832 int top = window_top_gutter_height (w); | |
| 1833 int right = WINDOW_WIDTH (w) - window_right_gutter_width (w, 0); | |
| 1834 int bottom = WINDOW_HEIGHT (w) - window_bottom_gutter_height (w); | |
| 1835 | |
|
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1836 return list4 (make_fixnum (left), |
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1837 make_fixnum (top), |
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1838 make_fixnum (right), |
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1839 make_fixnum (bottom)); |
| 428 | 1840 } |
| 1841 | |
| 1842 DEFUN ("window-point", Fwindow_point, 0, 1, 0, /* | |
| 1843 Return current value of point in WINDOW. | |
| 442 | 1844 For a non-selected window, this is the value point would have |
| 428 | 1845 if that window were selected. |
| 1846 | |
| 1847 Note that, when WINDOW is the selected window and its buffer | |
| 1848 is also currently selected, the value returned is the same as (point). | |
| 1849 It would be more strictly correct to return the `top-level' value | |
| 1850 of point, outside of any save-excursion forms. | |
| 444 | 1851 But that value is hard to find. |
| 428 | 1852 */ |
| 1853 (window)) | |
| 1854 { | |
| 1855 struct window *w = decode_window (window); | |
| 1856 | |
| 1857 /* The special check for current buffer is necessary for this | |
| 1858 function to work as defined when called within an excursion. */ | |
| 1859 if (w == XWINDOW (Fselected_window (XFRAME (w->frame)->device)) | |
| 1860 && current_buffer == XBUFFER (w->buffer)) | |
| 1861 return Fpoint (Qnil); | |
| 1862 return Fmarker_position (w->pointm[CURRENT_DISP]); | |
| 1863 } | |
| 1864 | |
| 1865 DEFUN ("window-start", Fwindow_start, 0, 1, 0, /* | |
| 1866 Return position at which display currently starts in WINDOW. | |
| 1867 This is updated by redisplay or by calling `set-window-start'. | |
| 1868 */ | |
| 1869 (window)) | |
| 1870 { | |
| 1871 return Fmarker_position (decode_window (window)->start[CURRENT_DISP]); | |
| 1872 } | |
| 1873 | |
| 1874 DEFUN ("window-end", Fwindow_end, 0, 2, 0, /* | |
| 1875 Return position at which display currently ends in WINDOW. | |
| 1876 This is updated by redisplay, when it runs to completion. | |
| 444 | 1877 Simply changing the buffer text or setting `window-start' does not |
| 1878 update this value. WINDOW defaults to the selected window. | |
| 1879 | |
| 1880 If optional arg GUARANTEE is non-nil, the return value is guaranteed | |
| 1881 to be the same value as this function would return at the end of the | |
| 1882 next full redisplay assuming nothing else changes in the meantime. | |
| 1883 This function is potentially much slower with this flag set. | |
| 428 | 1884 */ |
| 1885 (window, guarantee)) | |
| 1886 { | |
| 1887 struct window *w = decode_window (window); | |
| 1888 | |
| 1889 if (NILP (guarantee)) | |
| 1890 { | |
| 1891 Lisp_Object buf; | |
| 1892 buf = w->buffer; | |
| 1893 CHECK_BUFFER (buf); | |
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1894 return make_fixnum (BUF_Z (XBUFFER (buf)) - w->window_end_pos[CURRENT_DISP]); |
| 428 | 1895 } |
| 1896 else | |
| 1897 { | |
| 665 | 1898 Charbpos startp = marker_position (w->start[CURRENT_DISP]); |
|
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1899 return make_fixnum (end_of_last_line (w, startp)); |
| 428 | 1900 } |
| 1901 } | |
| 1902 | |
| 442 | 1903 DEFUN ("window-last-line-visible-height", Fwindow_last_line_visible_height, 0, 1, 0, /* |
| 1904 Return pixel height of visible part of last window line if it is clipped. | |
| 1905 If the last line is not clipped, return nil. | |
| 1906 */ | |
| 1907 (window)) | |
| 1908 { | |
| 1909 struct window *w = decode_window (window); | |
| 1910 display_line_dynarr *dla = window_display_lines (w, CURRENT_DISP); | |
| 1911 int num_lines = Dynarr_length (dla); | |
| 1912 struct display_line *dl; | |
| 1913 | |
| 1914 /* No lines - no clipped lines */ | |
| 4967 | 1915 if (num_lines == 0 || (num_lines == 1 && Dynarr_begin (dla)->modeline)) |
| 442 | 1916 return Qnil; |
| 1917 | |
| 1918 dl = Dynarr_atp (dla, num_lines - 1); | |
| 1919 if (dl->clip == 0) | |
| 1920 return Qnil; | |
| 1921 | |
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1922 return make_fixnum (dl->ascent + dl->descent - dl->clip); |
| 442 | 1923 } |
| 1924 | |
| 428 | 1925 DEFUN ("set-window-point", Fset_window_point, 2, 2, 0, /* |
| 1926 Make point value in WINDOW be at position POS in WINDOW's buffer. | |
| 1161 | 1927 If WINDOW is the selected window, and window's buffer is the current |
| 1928 buffer, this actually changes the buffer's point instead of the window's | |
| 1929 point. (The equivalence of the selected window's point with its buffer's | |
| 1930 point is maintained throughout XEmacs. However, enforcing the additional | |
| 1931 restriction on the current buffer is "bug compatible" with FSF and is | |
| 1932 perhaps more logical.) | |
| 428 | 1933 */ |
| 1934 (window, pos)) | |
| 1935 { | |
| 1936 struct window *w = decode_window (window); | |
| 1937 | |
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1938 CHECK_FIXNUM_COERCE_MARKER (pos); |
| 1161 | 1939 |
| 844 | 1940 /* Don't dereference selected-window because there may not |
| 1941 be one -- e.g. at startup */ | |
| 1161 | 1942 if (EQ (wrap_window (w), Fselected_window (Qnil)) |
| 1943 && EQ (w->buffer, Fcurrent_buffer ())) | |
| 1944 Fgoto_char (pos, Qnil); | |
| 428 | 1945 else |
| 1946 set_marker_restricted (w->pointm[CURRENT_DISP], pos, w->buffer); | |
| 1947 | |
| 1948 MARK_POINT_CHANGED; | |
| 1949 return pos; | |
| 1950 } | |
| 1951 | |
| 1952 DEFUN ("set-window-start", Fset_window_start, 2, 3, 0, /* | |
| 1953 Make display in WINDOW start at position POS in WINDOW's buffer. | |
| 1954 Optional third arg NOFORCE non-nil inhibits next redisplay | |
| 1955 from overriding motion of point in order to display at this exact start. | |
| 1956 */ | |
| 1957 (window, pos, noforce)) | |
| 1958 { | |
| 1959 struct window *w = decode_window (window); | |
| 1960 | |
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1961 CHECK_FIXNUM_COERCE_MARKER (pos); |
| 428 | 1962 set_marker_restricted (w->start[CURRENT_DISP], pos, w->buffer); |
| 1963 /* this is not right, but much easier than doing what is right. */ | |
| 1964 /* w->start_at_line_beg = 0; */ | |
| 1965 /* WTF is the above supposed to mean? GE */ | |
| 1966 w->start_at_line_beg = beginning_of_line_p (XBUFFER (w->buffer), | |
| 1967 marker_position (w->start[CURRENT_DISP])); | |
| 1968 if (NILP (noforce)) | |
| 1969 w->force_start = 1; | |
| 1970 w->redo_modeline = 1; | |
| 1971 SET_LAST_MODIFIED (w, 0); | |
| 1972 SET_LAST_FACECHANGE (w); | |
| 1973 | |
| 1974 MARK_WINDOWS_CHANGED (w); | |
| 1975 | |
| 1976 return pos; | |
| 1977 } | |
| 1978 | |
| 1979 DEFUN ("window-dedicated-p", Fwindow_dedicated_p, 1, 1, 0, /* | |
| 1980 Return WINDOW's dedicated object, usually t or nil. | |
| 1981 See also `set-window-dedicated-p'. | |
| 1982 */ | |
| 1983 (window)) | |
| 1984 { | |
| 1985 return decode_window (window)->dedicated; | |
| 1986 } | |
| 1987 | |
| 1988 DEFUN ("set-window-dedicated-p", Fset_window_dedicated_p, 2, 2, 0, /* | |
| 1989 Control whether WINDOW is dedicated to the buffer it displays. | |
| 1990 If it is dedicated, Emacs will not automatically change | |
| 1991 which buffer appears in it. | |
| 1992 The second argument is the new value for the dedication flag; | |
| 1993 non-nil means yes. | |
| 1994 */ | |
| 1995 (window, arg)) | |
| 1996 { | |
| 1997 struct window *w = decode_window (window); | |
| 1998 | |
| 1999 w->dedicated = NILP (arg) ? Qnil : Qt; | |
| 2000 | |
| 2001 return w->dedicated; | |
| 2002 } | |
| 2003 | |
| 2004 /* FSFmacs has window-display-table here. We have display table as a | |
| 2005 specifier. */ | |
| 2006 | |
| 2007 | |
| 2008 /* Record info on buffer window w is displaying | |
| 2009 when it is about to cease to display that buffer. */ | |
| 2010 static void | |
| 2011 unshow_buffer (struct window *w) | |
| 2012 { | |
| 2013 Lisp_Object buf = w->buffer; | |
| 844 | 2014 struct buffer *b = XBUFFER (buf); |
| 2015 | |
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2016 assert (b == XMARKER (w->pointm[CURRENT_DISP])->buffer); |
| 428 | 2017 |
| 2018 /* FSF disables this check, so I'll do it too. I hope it won't | |
| 2019 break things. --ben */ | |
| 2020 #if 0 | |
| 2021 if (w == XWINDOW (Fselected_window (Qnil)) | |
| 2022 || ! EQ (buf, XWINDOW (Fselected_window (Qnil))->buffer)) | |
| 2023 /* Do this except when the selected window's buffer | |
| 2024 is being removed from some other window. */ | |
| 2025 #endif | |
| 2026 /* last_window_start records the start position that this buffer | |
| 2027 had in the last window to be disconnected from it. | |
| 2028 Now that this statement is unconditional, | |
| 2029 it is possible for the buffer to be displayed in the | |
| 2030 selected window, while last_window_start reflects another | |
| 2031 window which was recently showing the same buffer. | |
| 2032 Some people might say that might be a good thing. Let's see. */ | |
| 2033 XBUFFER (buf)->last_window_start = | |
| 2034 marker_position (w->start[CURRENT_DISP]); | |
| 2035 | |
| 2036 /* Point in the selected window's buffer | |
| 2037 is actually stored in that buffer, and the window's pointm isn't used. | |
| 2038 So don't clobber point in that buffer. */ | |
| 2039 if (! EQ (buf, XWINDOW (Fselected_window (Qnil))->buffer)) | |
| 844 | 2040 BUF_SET_PT (b, |
| 2041 charbpos_clip_to_bounds | |
| 2042 (BUF_BEGV (b), | |
| 2043 marker_position (w->pointm[CURRENT_DISP]), | |
| 2044 BUF_ZV (b))); | |
| 2045 | |
| 2046 { | |
| 2047 Lisp_Object marker = Fgethash (buf, w->saved_point_cache, Qnil); | |
| 2048 int selected = EQ (wrap_window (w), Fselected_window (Qnil)); | |
| 2049 | |
| 2050 if (NILP (marker)) | |
| 2051 { | |
| 2052 marker = Fmake_marker (); | |
| 2053 Fputhash (buf, marker, w->saved_point_cache); | |
| 2054 } | |
| 2055 Fset_marker (marker, | |
|
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2056 selected ? make_fixnum (BUF_PT (b)) : w->pointm[CURRENT_DISP], |
| 844 | 2057 buf); |
| 2058 | |
| 2059 marker = Fgethash (buf, w->saved_last_window_start_cache, Qnil); | |
| 2060 | |
| 2061 if (NILP (marker)) | |
| 2062 { | |
| 2063 marker = Fmake_marker (); | |
| 2064 Fputhash (buf, marker, w->saved_last_window_start_cache); | |
| 2065 } | |
| 2066 Fset_marker (marker, w->start[CURRENT_DISP], buf); | |
| 2067 } | |
| 428 | 2068 } |
| 2069 | |
| 2070 /* Put REPLACEMENT into the window structure in place of OLD. */ | |
| 2071 static void | |
| 2072 replace_window (Lisp_Object old, Lisp_Object replacement) | |
| 2073 { | |
| 2074 Lisp_Object tem; | |
| 2075 struct window *o = XWINDOW (old), *p = XWINDOW (replacement); | |
| 2076 | |
| 2077 /* If OLD is its frame's root_window, then replacement is the new | |
| 2078 root_window for that frame. */ | |
| 2079 | |
| 2080 if (EQ (old, FRAME_ROOT_WINDOW (XFRAME (o->frame)))) | |
| 2081 FRAME_ROOT_WINDOW (XFRAME (o->frame)) = replacement; | |
| 2082 | |
| 2083 WINDOW_LEFT (p) = WINDOW_LEFT (o); | |
| 2084 WINDOW_TOP (p) = WINDOW_TOP (o); | |
| 2085 WINDOW_WIDTH (p) = WINDOW_WIDTH (o); | |
| 2086 WINDOW_HEIGHT (p) = WINDOW_HEIGHT (o); | |
| 2087 | |
| 2088 p->next = tem = o->next; | |
| 2089 if (!NILP (tem)) | |
| 2090 XWINDOW (tem)->prev = replacement; | |
| 2091 | |
| 2092 p->prev = tem = o->prev; | |
| 2093 if (!NILP (tem)) | |
| 2094 XWINDOW (tem)->next = replacement; | |
| 2095 | |
| 2096 p->parent = tem = o->parent; | |
| 2097 if (!NILP (tem)) | |
| 2098 { | |
| 2099 if (EQ (XWINDOW (tem)->vchild, old)) | |
| 2100 XWINDOW (tem)->vchild = replacement; | |
| 2101 if (EQ (XWINDOW (tem)->hchild, old)) | |
| 2102 XWINDOW (tem)->hchild = replacement; | |
| 2103 } | |
| 2104 | |
| 2105 /* #### Here, if replacement is a vertical combination | |
| 2106 and so is its new parent, we should make replacement's | |
| 2107 children be children of that parent instead. */ | |
| 442 | 2108 |
| 2109 ERROR_CHECK_SUBWINDOW_CACHE (p); | |
| 2110 } | |
| 2111 | |
| 2112 static void | |
| 2113 window_unmap_subwindows (struct window* w) | |
| 2114 { | |
| 2115 assert (!NILP (w->subwindow_instance_cache)); | |
| 2116 elisp_maphash (unmap_subwindow_instance_cache_mapper, | |
| 2117 w->subwindow_instance_cache, (void*)1); | |
| 428 | 2118 } |
| 2119 | |
| 2120 /* we're deleting W; set the structure of W to indicate this. */ | |
| 2121 | |
| 2122 static void | |
| 2123 mark_window_as_deleted (struct window *w) | |
| 2124 { | |
| 442 | 2125 /* The window instance cache is going away now, so need to get the |
| 2126 cachels reset by redisplay. */ | |
| 2127 MARK_FRAME_SUBWINDOWS_CHANGED (XFRAME (WINDOW_FRAME (w))); | |
| 2128 | |
| 2129 /* The cache is going away. If we leave unmapping to | |
| 2130 reset_subwindow_cachels then we get in a situation where the | |
| 2131 domain (the window) has been deleted but we still need access to | |
| 2132 its attributes in order to unmap windows properly. Since the | |
| 2133 subwindows are going to get GC'd anyway as a result of the domain | |
| 2134 going away, it is safer to just unmap them all while we know the | |
| 2135 domain is still valid. */ | |
| 2136 ERROR_CHECK_SUBWINDOW_CACHE (w); | |
| 2137 window_unmap_subwindows (w); | |
| 2138 | |
| 617 | 2139 /* Free the extra data structures attached to windows immediately so |
| 2140 they don't sit around consuming excess space. They will be | |
| 2141 reinitialized by the window-configuration code as necessary. */ | |
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2142 finalize_window (wrap_window (w)); |
| 617 | 2143 |
| 1149 | 2144 /* Nobody should be accessing anything in this object any more, |
| 618 | 2145 and making them Qnil allows for better GC'ing in case a pointer |
| 2146 to the dead window continues to hang around. Zero all other | |
| 2147 structs in case someone tries to access something through them. | |
| 2148 | |
| 2149 (So, in point of fact, we zero out all of the "saved" slots, | |
| 2150 which are obviously restored from the window config, plus the | |
| 2151 slots which were already zeroed.) | |
| 617 | 2152 |
| 2153 As an example of why setting the values to Qnil is good, here | |
| 2154 is an old comment: | |
| 2155 | |
| 2156 In the loop | |
| 428 | 2157 (while t (split-window) (delete-window)) |
| 2158 we end up with a tree of deleted windows which are all connected | |
| 2159 through the `next' slot. This might not seem so bad, as they're | |
| 2160 deleted, and will presumably be GCed - but if even *one* of those | |
| 2161 windows is still being pointed to, by the user, or by a window | |
| 1149 | 2162 configuration, then *all* of those windows stick around. */ |
| 617 | 2163 |
| 618 | 2164 #define WINDOW_SLOT(slot) |
| 2165 #define WINDOW_SAVED_SLOT(slot, compare) w->slot = Qnil; | |
| 617 | 2166 #include "winslots.h" |
| 428 | 2167 |
| 618 | 2168 w->next = Qnil; |
| 2169 w->prev = Qnil; | |
| 2170 w->hchild = Qnil; | |
| 2171 w->vchild = Qnil; | |
| 2172 w->parent = Qnil; | |
| 2173 w->subwindow_instance_cache = Qnil; | |
| 2174 | |
| 428 | 2175 w->dead = 1; |
| 853 | 2176 note_object_deleted (wrap_window (w)); |
| 428 | 2177 } |
| 2178 | |
| 1207 | 2179 /* Check if window contains pwindow. */ |
| 2180 | |
| 2181 static int | |
| 2182 contains_window (Lisp_Object window, Lisp_Object pwindow) | |
| 2183 { | |
| 2184 while (!NILP (pwindow)) | |
| 2185 { | |
| 2186 if (EQ (window, pwindow)) | |
| 2187 return 1; | |
| 2188 pwindow = XWINDOW (pwindow)->parent; | |
| 2189 } | |
| 2190 return 0; | |
| 2191 } | |
| 2192 | |
| 428 | 2193 DEFUN ("delete-window", Fdelete_window, 0, 2, "", /* |
| 2194 Remove WINDOW from the display. Default is selected window. | |
| 444 | 2195 If window is the only one on its frame, the frame is deleted as well. |
| 428 | 2196 Normally, you cannot delete the last non-minibuffer-only frame (you must |
| 2197 use `save-buffers-kill-emacs' or `kill-emacs'). However, if optional | |
| 2198 second argument FORCE is non-nil, you can delete the last frame. (This | |
| 2199 will automatically call `save-buffers-kill-emacs'.) | |
| 2200 */ | |
| 2201 (window, force)) | |
| 2202 { | |
| 2203 /* This function can GC if this is the only window in the frame */ | |
| 2204 struct window *w; | |
| 2205 Lisp_Object parent; | |
| 2206 struct window *par; | |
| 2207 Lisp_Object frame; | |
| 2208 struct frame *f; | |
| 2209 struct device *d; | |
| 2210 | |
| 2211 /* Note: this function is called by other C code on non-leaf | |
| 2212 windows. */ | |
| 2213 | |
| 2214 /* Do the equivalent of decode_window() but don't error out on | |
| 2215 deleted window; it's OK to delete an already-deleted window. */ | |
| 2216 if (NILP (window)) | |
| 2217 window = Fselected_window (Qnil); | |
| 2218 else | |
| 2219 CHECK_WINDOW (window); | |
| 442 | 2220 |
| 428 | 2221 w = XWINDOW (window); |
| 2222 | |
| 2223 /* It's okay to delete an already-deleted window. */ | |
| 2224 if (! WINDOW_LIVE_P (w)) | |
| 2225 return Qnil; | |
| 2226 | |
| 853 | 2227 check_allowed_operation (OPERATION_DELETE_OBJECT, window, Qnil); |
| 2228 | |
| 428 | 2229 frame = WINDOW_FRAME (w); |
| 2230 f = XFRAME (frame); | |
| 2231 d = XDEVICE (FRAME_DEVICE (f)); | |
| 2232 | |
| 2233 if (TOP_LEVEL_WINDOW_P (w)) | |
| 2234 { | |
| 2235 if (NILP (memq_no_quit (frame, DEVICE_FRAME_LIST (d)))) | |
| 2236 /* this frame isn't fully initialized yet; don't blow up. */ | |
| 2237 return Qnil; | |
| 2238 | |
| 2239 if (MINI_WINDOW_P (XWINDOW (window))) | |
| 563 | 2240 signal_error (Qinvalid_operation, "Attempt to delete the minibuffer window", Qunbound); |
| 428 | 2241 |
| 2242 /* It has been suggested that it's a good thing for C-x 0 to have this | |
| 2243 behavior, but not such a good idea for #'delete-window to have it. | |
| 2244 Maybe C-x 0 should be bound to something else, or maybe frame | |
| 2245 deletion should only happen when this is called interactively. | |
| 2246 */ | |
| 2247 delete_frame_internal (f, !NILP (force), 0, 0); | |
| 2248 return Qnil; | |
| 2249 } | |
| 2250 | |
| 2251 /* At this point, we know the window has a parent. */ | |
| 2252 parent = w->parent; | |
| 2253 par = XWINDOW (parent); | |
| 2254 | |
| 2255 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f); | |
| 430 | 2256 /* It's quite likely that deleting a window will result in |
| 2257 subwindows needing to be deleted also (since they are cached | |
| 2258 per-window). So we mark them as changed, so that the cachels will | |
| 2259 get reset by redisplay and thus deleted subwindows can get | |
| 2260 GC'd. */ | |
| 2261 MARK_FRAME_SUBWINDOWS_CHANGED (f); | |
| 428 | 2262 |
| 2263 /* Are we trying to delete any frame's selected window? | |
| 2264 Note that we could be dealing with a non-leaf window | |
| 2265 where the selected window is one of our children. | |
| 2266 So, we check by scanning all the ancestors of the | |
| 2267 frame's selected window and comparing each one with | |
| 2268 WINDOW. */ | |
| 1207 | 2269 if (contains_window (window, FRAME_SELECTED_WINDOW (f))) |
| 2270 { | |
| 2271 Lisp_Object alternative; | |
| 2272 alternative = Fnext_window (window, Qlambda, Qnil, Qnil); | |
| 2273 | |
| 2274 /* #### */ | |
| 2275 /* If we're about to delete the selected window on the | |
| 2276 selected frame, then we should use Fselect_window to select | |
| 2277 the new window. On the other hand, if we're about to | |
| 2278 delete the selected window on any other frame, we shouldn't do | |
| 2279 anything but set the frame's selected_window slot. */ | |
| 2280 if (EQ (frame, Fselected_frame (Qnil))) | |
| 2281 Fselect_window (alternative, Qnil); | |
| 2282 else | |
| 2283 set_frame_selected_window (f, alternative); | |
| 2284 } | |
| 2285 | |
| 2286 /* Some display parameters (gutter display specifically) depend on | |
| 2287 FRAME_LAST_NONMINIBUF (f) to be set to a live window. Ensure that. */ | |
| 2288 if (contains_window (window, FRAME_LAST_NONMINIBUF_WINDOW (f))) | |
| 2289 f->last_nonminibuf_window = Fnext_window (window, Qlambda, Qnil, Qnil); | |
| 428 | 2290 |
| 2291 /* w->buffer is nil in a non-leaf window; in this case, | |
| 2292 get rid of the markers we maintain that point into that buffer. */ | |
| 2293 if (!NILP (w->buffer)) | |
| 2294 { | |
| 2295 unshow_buffer (w); | |
| 2296 unchain_marker (w->pointm[CURRENT_DISP]); | |
| 2297 unchain_marker (w->pointm[DESIRED_DISP]); | |
| 2298 unchain_marker (w->pointm[CMOTION_DISP]); | |
| 2299 unchain_marker (w->start[CURRENT_DISP]); | |
| 2300 unchain_marker (w->start[DESIRED_DISP]); | |
| 2301 unchain_marker (w->start[CMOTION_DISP]); | |
| 2302 unchain_marker (w->sb_point); | |
| 1149 | 2303 w->buffer = Qnil; |
| 428 | 2304 } |
| 2305 | |
| 2306 /* close up the hole in the sibling list */ | |
| 2307 if (!NILP (w->next)) | |
| 2308 XWINDOW (w->next)->prev = w->prev; | |
| 2309 if (!NILP (w->prev)) | |
| 2310 XWINDOW (w->prev)->next = w->next; | |
| 2311 if (EQ (window, par->hchild)) | |
| 2312 par->hchild = w->next; | |
| 2313 if (EQ (window, par->vchild)) | |
| 2314 par->vchild = w->next; | |
| 2315 | |
| 2316 /* Find one of our siblings to give our space to. */ | |
| 2317 { | |
| 2318 Lisp_Object sib = w->prev; | |
| 2319 if (NILP (sib)) | |
| 2320 { | |
| 2321 /* If w gives its space to its next sibling, that sibling needs | |
| 2322 to have its top/left side pulled back to where w's is. | |
| 2323 set_window_{height,width} will re-position the sibling's | |
| 2324 children. */ | |
| 2325 sib = w->next; | |
| 2326 WINDOW_TOP (XWINDOW (sib)) = WINDOW_TOP (w); | |
| 2327 WINDOW_LEFT (XWINDOW (sib)) = WINDOW_LEFT (w); | |
| 2328 } | |
| 2329 | |
| 2330 /* Stretch that sibling. */ | |
| 2331 if (!NILP (par->vchild)) | |
| 2332 set_window_pixheight | |
| 2333 (sib, (WINDOW_HEIGHT (XWINDOW (sib)) + WINDOW_HEIGHT (w)), 1); | |
| 2334 if (!NILP (par->hchild)) | |
| 2335 set_window_pixwidth | |
| 2336 (sib, (WINDOW_WIDTH (XWINDOW (sib)) + WINDOW_WIDTH (w)), 1); | |
| 2337 } | |
| 2338 | |
| 2339 /* If parent now has only one child, | |
| 2340 put the child into the parent's place. */ | |
| 2341 { | |
| 2342 Lisp_Object parchild = par->hchild; | |
| 2343 if (NILP (parchild)) | |
| 2344 parchild = par->vchild; | |
| 2345 if (NILP (XWINDOW (parchild)->next)) | |
| 2346 { | |
| 2347 replace_window (parent, parchild); | |
| 2348 mark_window_as_deleted (XWINDOW (parent)); | |
| 2349 } | |
| 2350 } | |
| 2351 | |
| 2352 /* Since we may be deleting combination windows, we must make sure that | |
| 2353 not only W but all its children have been marked as deleted. */ | |
| 2354 if (!NILP (w->hchild)) | |
| 2355 delete_all_subwindows (XWINDOW (w->hchild)); | |
| 2356 else if (!NILP (w->vchild)) | |
| 2357 delete_all_subwindows (XWINDOW (w->vchild)); | |
| 2358 | |
| 1752 | 2359 /* Warning: mark_window_as_deleted calls window_unmap_subwindows and |
| 2360 therefore redisplay, so it requires the mirror structure to be | |
| 2361 correct. We must dirty the mirror before it is called. */ | |
| 2362 f->mirror_dirty = 1; | |
| 2363 | |
| 428 | 2364 mark_window_as_deleted (w); |
| 2365 | |
| 2366 return Qnil; | |
| 2367 } | |
| 2368 | |
| 2369 | |
| 2370 DEFUN ("next-window", Fnext_window, 0, 4, 0, /* | |
| 442 | 2371 Return the next window after WINDOW in the canonical ordering of windows. |
| 428 | 2372 If omitted, WINDOW defaults to the selected window. |
| 2373 | |
| 2374 Optional second arg MINIBUF t means count the minibuffer window even | |
| 2375 if not active. MINIBUF nil or omitted means count the minibuffer iff | |
| 2376 it is active. MINIBUF neither t nor nil means not to count the | |
| 2377 minibuffer even if it is active. | |
| 2378 | |
| 2379 Several frames may share a single minibuffer; if the minibuffer | |
| 2380 counts, all windows on all frames that share that minibuffer count | |
| 2381 too. Therefore, `next-window' can be used to iterate through the | |
| 2382 set of windows even when the minibuffer is on another frame. If the | |
| 2383 minibuffer does not count, only windows from WINDOW's frame count. | |
| 2384 | |
| 444 | 2385 By default, only the windows in the selected frame are considered. |
| 2386 The optional argument WHICH-FRAMES changes this behavior: | |
| 2387 WHICH-FRAMES = `visible' means search windows on all visible frames. | |
| 448 | 2388 WHICH-FRAMES = 0 means search windows on all visible and iconified frames. |
| 444 | 2389 WHICH-FRAMES = t means search windows on all frames including invisible frames. |
| 2390 WHICH-FRAMES = a frame means search only windows on that frame. | |
| 2391 Anything else means restrict to the selected frame. | |
| 2392 | |
| 2393 The optional fourth argument WHICH-DEVICES further clarifies on which | |
| 2394 devices to search for frames as specified by WHICH-FRAMES. This value | |
| 2395 is only meaningful if WHICH-FRAMES is non-nil. | |
| 2396 If nil or omitted, search all devices on the selected console. | |
| 2397 If a device, only search that device. | |
| 2398 If a console, search all devices on that console. | |
| 2399 If a device type, search all devices of that type. | |
| 2400 If `window-system', search all window-system devices. | |
| 2401 Any other non-nil value means search all devices. | |
| 2402 | |
| 2403 If you use consistent values for MINIBUF, WHICH-FRAMES, and WHICH-DEVICES, | |
| 2404 you can use `next-window' to iterate through the entire cycle of | |
| 2405 acceptable windows, eventually ending up back at the window you started with. | |
| 428 | 2406 `previous-window' traverses the same cycle, in the reverse order. |
| 2407 */ | |
| 444 | 2408 (window, minibuf, which_frames, which_devices)) |
| 428 | 2409 { |
| 2410 Lisp_Object tem; | |
| 2411 Lisp_Object start_window; | |
| 2412 | |
| 2413 if (NILP (window)) | |
| 2414 window = Fselected_window (Qnil); | |
| 2415 else | |
| 2416 CHECK_LIVE_WINDOW (window); | |
| 2417 | |
| 2418 start_window = window; | |
| 2419 | |
| 2420 /* minibuf == nil may or may not include minibuffers. | |
| 2421 Decide if it does. */ | |
| 2422 if (NILP (minibuf)) | |
| 2423 minibuf = (minibuf_level ? minibuf_window : Qlambda); | |
| 2424 else if (! EQ (minibuf, Qt)) | |
| 2425 minibuf = Qlambda; | |
| 442 | 2426 /* Now `minibuf' is one of: |
| 2427 t => count all minibuffer windows | |
| 2428 lambda => count none of them | |
| 428 | 2429 or a specific minibuffer window (the active one) to count. */ |
| 2430 | |
| 444 | 2431 /* which_frames == nil doesn't specify which frames to include. */ |
| 2432 if (NILP (which_frames)) | |
| 2433 which_frames = (! EQ (minibuf, Qlambda) | |
| 428 | 2434 ? (FRAME_MINIBUF_WINDOW |
| 2435 (XFRAME | |
| 2436 (WINDOW_FRAME | |
| 2437 (XWINDOW (window))))) | |
| 2438 : Qnil); | |
| 444 | 2439 else if (EQ (which_frames, Qvisible)) |
| 428 | 2440 ; |
| 444 | 2441 else if (ZEROP (which_frames)) |
| 428 | 2442 ; |
| 444 | 2443 else if (FRAMEP (which_frames) && ! EQ (which_frames, Fwindow_frame (window))) |
| 2444 /* If which_frames is a frame and window arg isn't on that frame, just | |
| 428 | 2445 return the first window on the frame. */ |
| 444 | 2446 return frame_first_window (XFRAME (which_frames)); |
| 2447 else if (! EQ (which_frames, Qt)) | |
| 2448 which_frames = Qnil; | |
| 2449 /* Now `which_frames' is one of: | |
| 442 | 2450 t => search all frames |
| 2451 nil => search just the current frame | |
| 2452 visible => search just visible frames | |
| 2453 0 => search visible and iconified frames | |
| 2454 a window => search the frame that window belongs to. */ | |
| 428 | 2455 |
| 2456 /* Do this loop at least once, to get the next window, and perhaps | |
| 2457 again, if we hit the minibuffer and that is not acceptable. */ | |
| 2458 do | |
| 2459 { | |
| 2460 /* Find a window that actually has a next one. This loop | |
| 2461 climbs up the tree. */ | |
| 2462 while (tem = XWINDOW (window)->next, NILP (tem)) | |
| 2463 if (tem = XWINDOW (window)->parent, !NILP (tem)) | |
| 2464 window = tem; | |
| 2465 else /* window must be minibuffer window now */ | |
| 2466 { | |
| 2467 /* We've reached the end of this frame. | |
| 2468 Which other frames are acceptable? */ | |
| 2469 tem = WINDOW_FRAME (XWINDOW (window)); | |
| 2470 | |
| 444 | 2471 if (! NILP (which_frames)) |
| 428 | 2472 { |
| 442 | 2473 Lisp_Object tem1 = tem; |
| 444 | 2474 tem = next_frame (tem, which_frames, which_devices); |
| 442 | 2475 |
| 428 | 2476 /* In the case where the minibuffer is active, |
| 2477 and we include its frame as well as the selected one, | |
| 2478 next_frame may get stuck in that frame. | |
| 2479 If that happens, go back to the selected frame | |
| 2480 so we can complete the cycle. */ | |
| 2481 if (EQ (tem, tem1)) | |
| 793 | 2482 tem = wrap_frame (selected_frame ()); |
| 428 | 2483 } |
| 2484 | |
| 2485 tem = FRAME_ROOT_WINDOW (XFRAME (tem)); | |
| 2486 break; | |
| 2487 } | |
| 2488 | |
| 2489 window = tem; | |
| 2490 | |
| 2491 /* If we're in a combination window, find its first child and | |
| 2492 recurse on that. Otherwise, we've found the window we want. */ | |
| 2493 while (1) | |
| 2494 { | |
| 2495 if (!NILP (XWINDOW (window)->hchild)) | |
| 2496 window = XWINDOW (window)->hchild; | |
| 2497 else if (!NILP (XWINDOW (window)->vchild)) | |
| 2498 window = XWINDOW (window)->vchild; | |
| 2499 else break; | |
| 2500 } | |
| 2501 } | |
| 2502 /* Which windows are acceptable? | |
| 2503 Exit the loop and accept this window if | |
| 2504 this isn't a minibuffer window, | |
| 2505 or we're accepting all minibuffer windows, | |
| 2506 or this is the active minibuffer and we are accepting that one, or | |
| 2507 we've come all the way around and we're back at the original window. */ | |
| 2508 while (MINI_WINDOW_P (XWINDOW (window)) | |
| 2509 && ! EQ (minibuf, Qt) | |
| 2510 && ! EQ (minibuf, window) | |
| 2511 && ! EQ (window, start_window)); | |
| 2512 | |
| 2513 return window; | |
| 2514 } | |
| 2515 | |
| 2516 DEFUN ("previous-window", Fprevious_window, 0, 4, 0, /* | |
| 442 | 2517 Return the window preceding WINDOW in the canonical ordering of windows. |
| 428 | 2518 If omitted, WINDOW defaults to the selected window. |
| 2519 | |
| 2520 Optional second arg MINIBUF t means count the minibuffer window even | |
| 2521 if not active. MINIBUF nil or omitted means count the minibuffer iff | |
| 2522 it is active. MINIBUF neither t nor nil means not to count the | |
| 2523 minibuffer even if it is active. | |
| 2524 | |
| 2525 Several frames may share a single minibuffer; if the minibuffer | |
| 2526 counts, all windows on all frames that share that minibuffer count | |
| 2527 too. Therefore, `previous-window' can be used to iterate through | |
| 2528 the set of windows even when the minibuffer is on another frame. If | |
| 442 | 2529 the minibuffer does not count, only windows from WINDOW's frame count. |
| 2530 | |
| 444 | 2531 By default, only the windows in the selected frame are considered. |
| 2532 The optional argument WHICH-FRAMES changes this behavior: | |
| 2533 WHICH-FRAMES = `visible' means search windows on all visible frames. | |
| 448 | 2534 WHICH-FRAMES = 0 means search windows on all visible and iconified frames. |
| 444 | 2535 WHICH-FRAMES = t means search windows on all frames including invisible frames. |
| 2536 WHICH-FRAMES = a frame means search only windows on that frame. | |
| 2537 Anything else means restrict to the selected frame. | |
| 2538 | |
| 2539 The optional fourth argument WHICH-DEVICES further clarifies on which | |
| 2540 devices to search for frames as specified by WHICH-FRAMES. This value | |
| 2541 is only meaningful if WHICH-FRAMES is non-nil. | |
| 2542 If nil or omitted, search all devices on the selected console. | |
| 2543 If a device, only search that device. | |
| 2544 If a console, search all devices on that console. | |
| 2545 If a device type, search all devices of that type. | |
| 2546 If `window-system', search all window-system devices. | |
| 2547 Any other non-nil value means search all devices. | |
| 2548 | |
| 2549 If you use consistent values for MINIBUF, WHICH-FRAMES, and WHICH-DEVICES, | |
| 2550 you can use `previous-window' to iterate through the entire cycle of | |
| 2551 acceptable windows, eventually ending up back at the window you started with. | |
| 428 | 2552 `next-window' traverses the same cycle, in the reverse order. |
| 2553 */ | |
| 444 | 2554 (window, minibuf, which_frames, devices)) |
| 428 | 2555 { |
| 2556 Lisp_Object tem; | |
| 2557 Lisp_Object start_window; | |
| 2558 | |
| 2559 if (NILP (window)) | |
| 2560 window = Fselected_window (Qnil); | |
| 2561 else | |
| 2562 CHECK_LIVE_WINDOW (window); | |
| 2563 | |
| 2564 start_window = window; | |
| 2565 | |
| 2566 /* minibuf == nil may or may not include minibuffers. | |
| 2567 Decide if it does. */ | |
| 2568 if (NILP (minibuf)) | |
| 2569 minibuf = (minibuf_level ? minibuf_window : Qlambda); | |
| 2570 else if (! EQ (minibuf, Qt)) | |
| 2571 minibuf = Qlambda; | |
| 442 | 2572 /* Now `minibuf' is one of: |
| 2573 t => count all minibuffer windows | |
| 2574 lambda => count none of them | |
| 428 | 2575 or a specific minibuffer window (the active one) to count. */ |
| 2576 | |
| 444 | 2577 /* which_frames == nil doesn't specify which frames to include. |
| 428 | 2578 Decide which frames it includes. */ |
| 444 | 2579 if (NILP (which_frames)) |
| 2580 which_frames = (! EQ (minibuf, Qlambda) | |
| 428 | 2581 ? (FRAME_MINIBUF_WINDOW |
| 2582 (XFRAME | |
| 2583 (WINDOW_FRAME | |
| 2584 (XWINDOW (window))))) | |
| 2585 : Qnil); | |
| 444 | 2586 else if (EQ (which_frames, Qvisible)) |
| 428 | 2587 ; |
| 444 | 2588 else if (ZEROP (which_frames)) |
| 428 | 2589 ; |
| 444 | 2590 else if (FRAMEP (which_frames) && ! EQ (which_frames, Fwindow_frame (window))) |
| 2591 /* If which_frames is a frame and window arg isn't on that frame, just | |
| 428 | 2592 return the first window on the frame. */ |
| 444 | 2593 return frame_first_window (XFRAME (which_frames)); |
| 2594 else if (! EQ (which_frames, Qt)) | |
| 2595 which_frames = Qnil; | |
| 2596 /* Now `which_frames' is one of: | |
| 442 | 2597 t => search all frames |
| 2598 nil => search just the current frame | |
| 2599 visible => search just visible frames | |
| 2600 0 => search visible and iconified frames | |
| 2601 a window => search the frame that window belongs to. */ | |
| 428 | 2602 |
| 2603 /* Do this loop at least once, to get the next window, and perhaps | |
| 2604 again, if we hit the minibuffer and that is not acceptable. */ | |
| 2605 do | |
| 2606 { | |
| 2607 /* Find a window that actually has a next one. This loop | |
| 2608 climbs up the tree. */ | |
| 2609 while (tem = XWINDOW (window)->prev, NILP (tem)) | |
| 2610 if (tem = XWINDOW (window)->parent, !NILP (tem)) | |
| 2611 window = tem; | |
| 2612 else /* window must be minibuffer window now */ | |
| 2613 { | |
| 2614 /* We have found the top window on the frame. | |
| 2615 Which frames are acceptable? */ | |
| 2616 tem = WINDOW_FRAME (XWINDOW (window)); | |
| 2617 | |
| 444 | 2618 if (! NILP (which_frames)) |
| 442 | 2619 /* It's actually important that we use previous_frame here, |
| 428 | 2620 rather than next_frame. All the windows acceptable |
| 2621 according to the given parameters should form a ring; | |
| 2622 Fnext_window and Fprevious_window should go back and | |
| 2623 forth around the ring. If we use next_frame here, | |
| 2624 then Fnext_window and Fprevious_window take different | |
| 2625 paths through the set of acceptable windows. | |
| 2626 window_loop assumes that these `ring' requirement are | |
| 2627 met. */ | |
| 2628 { | |
| 442 | 2629 Lisp_Object tem1 = tem; |
| 444 | 2630 tem = previous_frame (tem, which_frames, devices); |
| 428 | 2631 /* In the case where the minibuffer is active, |
| 2632 and we include its frame as well as the selected one, | |
| 2633 next_frame may get stuck in that frame. | |
| 2634 If that happens, go back to the selected frame | |
| 2635 so we can complete the cycle. */ | |
| 2636 if (EQ (tem, tem1)) | |
| 793 | 2637 tem = wrap_frame (selected_frame ()); |
| 428 | 2638 } |
| 2639 | |
| 2640 /* If this frame has a minibuffer, find that window first, | |
| 2641 because it is conceptually the last window in that frame. */ | |
| 2642 if (FRAME_HAS_MINIBUF_P (XFRAME (tem))) | |
| 2643 tem = FRAME_MINIBUF_WINDOW (XFRAME (tem)); | |
| 2644 else | |
| 2645 tem = FRAME_ROOT_WINDOW (XFRAME (tem)); | |
| 2646 | |
| 2647 break; | |
| 2648 } | |
| 2649 | |
| 2650 window = tem; | |
| 2651 | |
| 2652 /* If we're in a combination window, find its first child and | |
| 2653 recurse on that. Otherwise, we've found the window we want. */ | |
| 2654 while (1) | |
| 2655 { | |
| 2656 if (!NILP (XWINDOW (window)->hchild)) | |
| 2657 window = XWINDOW (window)->hchild; | |
| 2658 else if (!NILP (XWINDOW (window)->vchild)) | |
| 2659 window = XWINDOW (window)->vchild; | |
| 2660 else break; | |
| 2661 while (tem = XWINDOW (window)->next, !NILP (tem)) | |
| 2662 window = tem; | |
| 2663 } | |
| 2664 } | |
| 2665 /* Which windows are acceptable? | |
| 2666 Exit the loop and accept this window if | |
| 2667 this isn't a minibuffer window, | |
| 2668 or we're accepting all minibuffer windows, | |
| 2669 or this is the active minibuffer and we are accepting that one, or | |
| 2670 we've come all the way around and we're back at the original window. */ | |
| 2671 while (MINI_WINDOW_P (XWINDOW (window)) | |
| 2672 && ! EQ (minibuf, Qt) | |
| 2673 && ! EQ (minibuf, window) | |
| 2674 && ! EQ (window, start_window)); | |
| 2675 | |
| 2676 return window; | |
| 2677 } | |
| 2678 | |
| 2679 DEFUN ("next-vertical-window", Fnext_vertical_window, 0, 1, 0, /* | |
| 2680 Return the next window which is vertically after WINDOW. | |
| 2681 */ | |
| 2682 (window)) | |
| 2683 { | |
| 2684 Lisp_Object root; | |
| 2685 struct window *w = decode_window (window); | |
| 793 | 2686 window = wrap_window (w); |
| 428 | 2687 |
| 2688 if (MINI_WINDOW_P (XWINDOW (window))) | |
| 2689 return Qnil; | |
| 2690 | |
| 2691 root = FRAME_ROOT_WINDOW (XFRAME (WINDOW_FRAME (XWINDOW (window)))); | |
| 2692 | |
| 2693 if (EQ (window, root)) | |
| 2694 { | |
| 2695 while (1) | |
| 2696 if (!NILP (XWINDOW (window)->hchild)) | |
| 2697 window = XWINDOW (window)->hchild; | |
| 2698 else if (!NILP (XWINDOW (window)->vchild)) | |
| 2699 window = XWINDOW (window)->vchild; | |
| 2700 else | |
| 2701 return window; | |
| 2702 } | |
| 2703 | |
| 2704 do | |
| 2705 { | |
| 2706 if (!NILP (XWINDOW (window)->parent) && | |
| 2707 !NILP (XWINDOW (XWINDOW (window)->parent)->vchild)) | |
| 2708 { | |
| 2709 if (!NILP (XWINDOW (window)->next)) | |
| 2710 return XWINDOW (window)->next; | |
| 2711 else | |
| 2712 window = XWINDOW (window)->parent; | |
| 2713 } | |
| 2714 else | |
| 2715 window = XWINDOW (window)->parent; | |
| 2716 } | |
| 2717 while (!EQ (window, root)); | |
| 2718 | |
| 2719 while (1) | |
| 2720 if (!NILP (XWINDOW (window)->hchild)) | |
| 2721 window = XWINDOW (window)->hchild; | |
| 2722 else if (!NILP (XWINDOW (window)->vchild)) | |
| 2723 window = XWINDOW (window)->vchild; | |
| 2724 else | |
| 2725 return window; | |
| 2726 } | |
| 2727 | |
| 2728 DEFUN ("other-window", Fother_window, 1, 3, "p", /* | |
| 444 | 2729 Select the COUNT'th different window on this frame. |
| 428 | 2730 All windows on current frame are arranged in a cyclic order. |
| 444 | 2731 This command selects the window COUNT steps away in that order. |
| 2732 A negative COUNT moves in the opposite order. | |
| 2733 | |
| 2734 By default, only the windows in the selected frame are considered. | |
| 2735 The optional argument WHICH-FRAMES changes this behavior: | |
| 2736 WHICH-FRAMES = `visible' means search windows on all visible frames. | |
| 448 | 2737 WHICH-FRAMES = 0 means search windows on all visible and iconified frames. |
| 444 | 2738 WHICH-FRAMES = t means search windows on all frames including invisible frames. |
| 2739 WHICH-FRAMES = a frame means search only windows on that frame. | |
| 2740 Anything else means restrict to the selected frame. | |
| 2741 | |
| 2742 The optional argument WHICH-DEVICES further clarifies on which devices | |
| 2743 to search for frames as specified by WHICH-FRAMES. This value is only | |
| 2744 meaningful if WHICH-FRAMES is non-nil. | |
| 2745 If nil or omitted, search all devices on the selected console. | |
| 2746 If a device, only search that device. | |
| 2747 If a console, search all devices on that console. | |
| 2748 If a device type, search all devices of that type. | |
| 2749 If `window-system', search all window-system devices. | |
| 2750 Any other non-nil value means search all devices. | |
| 428 | 2751 */ |
| 444 | 2752 (count, which_frames, which_devices)) |
| 428 | 2753 { |
| 2754 int i; | |
| 2755 Lisp_Object w; | |
| 2756 | |
|
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Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
2757 CHECK_FIXNUM (count); |
| 428 | 2758 w = Fselected_window (Qnil); |
|
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Aidan Kehoe <kehoea@parhasard.net>
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5474
diff
changeset
|
2759 i = XFIXNUM (count); |
| 428 | 2760 |
| 2761 while (i > 0) | |
| 2762 { | |
| 444 | 2763 w = Fnext_window (w, Qnil, which_frames, which_devices); |
| 428 | 2764 i--; |
| 2765 } | |
| 2766 while (i < 0) | |
| 2767 { | |
| 444 | 2768 w = Fprevious_window (w, Qnil, which_frames, which_devices); |
| 428 | 2769 i++; |
| 2770 } | |
| 2771 Fselect_window (w, Qnil); | |
| 2772 return Qnil; | |
| 2773 } | |
| 2774 | |
| 2775 | |
| 2776 /* Look at all windows, performing an operation specified by TYPE | |
| 2777 with argument OBJ. | |
| 2778 | |
| 2779 If FRAMES is Qt, look at all frames, if Qnil, look at just the selected | |
| 2780 frame. If FRAMES is a frame, just look at windows on that frame. | |
| 2781 If MINI is non-zero, perform the operation on minibuffer windows too. | |
| 2782 */ | |
| 2783 | |
| 2784 enum window_loop | |
| 2785 { | |
| 2786 WINDOW_LOOP_UNUSED, | |
| 2787 GET_BUFFER_WINDOW, /* Arg is buffer */ | |
| 2788 GET_LRU_WINDOW, /* Arg is t for full-width windows only */ | |
| 2789 DELETE_OTHER_WINDOWS, /* Arg is window not to delete */ | |
| 2790 DELETE_BUFFER_WINDOWS, /* Arg is buffer */ | |
| 2791 GET_LARGEST_WINDOW, | |
| 2792 GET_BUFFER_WINDOW_COUNT, /* Arg is buffer */ | |
| 2793 GET_BUFFER_MRU_WINDOW /* Arg is buffer */ | |
| 2794 }; | |
| 2795 | |
| 2796 static Lisp_Object | |
| 2797 window_loop (enum window_loop type, | |
| 2798 Lisp_Object obj, | |
| 2799 int mini, | |
| 444 | 2800 Lisp_Object which_frames, |
| 428 | 2801 int dedicated_too, |
| 444 | 2802 Lisp_Object which_devices) |
| 428 | 2803 { |
| 448 | 2804 /* This function can GC if type == DELETE_BUFFER_WINDOWS */ |
| 428 | 2805 Lisp_Object w; |
| 2806 Lisp_Object best_window = Qnil; | |
| 2807 Lisp_Object next_window; | |
| 2808 Lisp_Object last_window; | |
| 2809 struct frame *frame; | |
| 2810 Lisp_Object frame_arg = Qt; | |
| 2811 int count = 0; /* for GET_BUFFER_WINDOW_COUNT */ | |
| 2812 /* #### I think the change of "precomputing" last_window and next_window | |
| 2813 * #### catch the lossage this is meant(?) to punt on... | |
| 2814 */ | |
| 2815 int lose_lose = 0; | |
| 2816 Lisp_Object devcons, concons; | |
| 2817 | |
| 2818 /* If we're only looping through windows on a particular frame, | |
| 2819 FRAME points to that frame. If we're looping through windows | |
| 2820 on all frames, FRAME is 0. */ | |
| 444 | 2821 if (FRAMEP (which_frames)) |
| 2822 frame = XFRAME (which_frames); | |
| 2823 else if (NILP (which_frames)) | |
| 428 | 2824 frame = selected_frame (); |
| 2825 else | |
| 2826 frame = 0; | |
| 442 | 2827 |
| 2828 /* FRAME_ARG is Qlambda to stick to one frame, | |
| 2829 Qvisible to consider all visible frames, | |
| 2830 or Qt otherwise. */ | |
| 428 | 2831 if (frame) |
| 2832 frame_arg = Qlambda; | |
| 444 | 2833 else if (ZEROP (which_frames)) |
| 2834 frame_arg = which_frames; | |
| 2835 else if (EQ (which_frames, Qvisible)) | |
| 2836 frame_arg = which_frames; | |
| 428 | 2837 |
| 2838 DEVICE_LOOP_NO_BREAK (devcons, concons) | |
| 2839 { | |
| 2840 Lisp_Object device = XCAR (devcons); | |
| 2841 Lisp_Object the_frame; | |
| 2842 | |
| 2843 if (frame) | |
| 793 | 2844 the_frame = wrap_frame (frame); |
| 428 | 2845 else |
| 2846 the_frame = DEVICE_SELECTED_FRAME (XDEVICE (device)); | |
| 2847 | |
| 2848 if (NILP (the_frame)) | |
| 2849 continue; | |
| 2850 | |
| 444 | 2851 if (!device_matches_device_spec (device, |
| 2852 NILP (which_devices) ? | |
| 2853 FRAME_CONSOLE (XFRAME (the_frame)) : | |
| 2854 which_devices)) | |
| 428 | 2855 continue; |
| 2856 | |
| 2857 /* Pick a window to start with. */ | |
| 2858 if (WINDOWP (obj)) | |
| 2859 w = obj; | |
| 2860 else | |
| 2861 w = FRAME_SELECTED_WINDOW (XFRAME (the_frame)); | |
| 2862 | |
| 2863 /* Figure out the last window we're going to mess with. Since | |
| 2864 Fnext_window, given the same options, is guaranteed to go in a | |
| 2865 ring, we can just use Fprevious_window to find the last one. | |
| 2866 | |
| 2867 We can't just wait until we hit the first window again, | |
| 2868 because it might be deleted. */ | |
| 2869 | |
| 707 | 2870 last_window = Fprevious_window (w, mini ? Qt : Qnil, frame_arg, device); |
| 428 | 2871 |
| 2872 best_window = Qnil; | |
| 2873 for (;;) | |
| 2874 { | |
| 2875 struct window *p = XWINDOW (w); | |
| 2876 | |
| 2877 /* Pick the next window now, since some operations will delete | |
| 2878 the current window. */ | |
| 442 | 2879 next_window = Fnext_window (w, mini ? Qt : Qnil, frame_arg, device); |
| 428 | 2880 |
| 2881 /* #### Still needed ?? */ | |
| 2882 /* Given the outstanding quality of the rest of this code, | |
| 2883 I feel no shame about putting this piece of shit in. */ | |
| 2884 if (++lose_lose >= 500) | |
| 707 | 2885 { |
| 2500 | 2886 /* Call to ABORT() added by Darryl Okahata (16 Nov. 2001), |
| 707 | 2887 at Ben's request, to catch any remaining bugs. |
| 2888 | |
| 2889 If you find that XEmacs is aborting here, and you | |
| 2890 need to be up and running ASAP, it should be safe to | |
| 2500 | 2891 comment out the following ABORT(), as long as you |
| 707 | 2892 leave the "break;" alone. */ |
| 2500 | 2893 ABORT(); |
| 707 | 2894 break; /* <--- KEEP THIS HERE! Do not delete! */ |
| 2895 } | |
| 428 | 2896 |
| 2897 /* Note that we do not pay attention here to whether | |
| 2898 the frame is visible, since Fnext_window skips non-visible frames | |
| 2899 if that is desired, under the control of frame_arg. */ | |
| 2900 if (! MINI_WINDOW_P (p) | |
| 2901 || (mini && minibuf_level > 0)) | |
| 2902 switch (type) | |
| 2903 { | |
| 2904 case GET_BUFFER_WINDOW: | |
| 2905 { | |
| 2906 if (XBUFFER (p->buffer) == XBUFFER (obj)) | |
| 2907 return w; | |
| 2908 break; | |
| 2909 } | |
| 2910 | |
| 2911 case GET_BUFFER_WINDOW_COUNT: | |
| 2912 { | |
| 2913 if (XBUFFER (p->buffer) == XBUFFER (obj)) | |
| 2914 count++; | |
| 2915 break; | |
| 2916 } | |
| 2917 | |
| 2918 case GET_LRU_WINDOW: | |
| 2919 { | |
| 2920 /* t as arg means consider only full-width windows */ | |
| 2921 if (!NILP (obj) | |
| 2922 && !window_full_width_p (p)) | |
| 2923 break; | |
| 2924 /* Ignore dedicated windows and minibuffers. */ | |
| 2925 if (MINI_WINDOW_P (p) | |
| 2926 || (dedicated_too ? 0 : !NILP (p->dedicated))) | |
| 2927 break; | |
| 2928 if (NILP (best_window) | |
|
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diff
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|
2929 || (XFIXNUM (XWINDOW (best_window)->use_time) |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
2930 > XFIXNUM (p->use_time))) |
| 428 | 2931 best_window = w; |
| 2932 break; | |
| 2933 } | |
| 2934 | |
| 2935 case GET_BUFFER_MRU_WINDOW: | |
| 2936 { | |
| 2937 /* #### what about the first check in GET_LRU_WINDOW? */ | |
| 2938 /* Ignore dedicated windows and minibuffers. */ | |
| 2939 if (MINI_WINDOW_P (p) | |
| 2940 || (dedicated_too ? 0 : !NILP (p->dedicated))) | |
| 2941 break; | |
| 2942 | |
| 2943 if (XBUFFER (p->buffer) == XBUFFER (obj)) | |
| 2944 { | |
| 2945 if (NILP (best_window) | |
|
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
2946 || (XFIXNUM (XWINDOW (best_window)->use_time) |
|
56144c8593a8
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Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
2947 < XFIXNUM (p->use_time))) |
| 428 | 2948 best_window = w; |
| 2949 } | |
| 2950 break; | |
| 2951 } | |
| 2952 | |
| 2953 case DELETE_OTHER_WINDOWS: | |
| 2954 { | |
| 2955 /* Don't delete the last window on a frame; this can | |
| 2956 happen when the minibuffer is selected, and would | |
| 2957 cause the frame to be deleted. */ | |
| 2958 if (p != XWINDOW (obj) && !TOP_LEVEL_WINDOW_P (XWINDOW (w))) | |
| 2959 Fdelete_window (w, Qnil); | |
| 2960 break; | |
| 2961 } | |
| 2962 | |
| 2963 case DELETE_BUFFER_WINDOWS: | |
| 2964 { | |
| 2965 if (EQ (p->buffer, obj)) | |
| 2966 { | |
| 2967 struct frame *f = XFRAME (WINDOW_FRAME (p)); | |
| 2968 | |
| 2969 /* If this window is dedicated, and in a frame | |
| 2970 of its own, kill the frame. */ | |
| 2971 if (EQ (w, FRAME_ROOT_WINDOW (f)) | |
| 2972 && !NILP (p->dedicated) | |
| 1979 | 2973 && (allow_deletion_of_last_visible_frame |
| 2974 || other_visible_frames (f))) | |
| 428 | 2975 { |
| 2976 /* Skip the other windows on this frame. | |
| 2977 There might be one, the minibuffer! */ | |
| 2978 if (! EQ (w, last_window)) | |
| 2979 while (f == XFRAME (WINDOW_FRAME | |
| 2980 (XWINDOW (next_window)))) | |
| 2981 { | |
| 2982 /* As we go, check for the end of the | |
| 2983 loop. We mustn't start going | |
| 2984 around a second time. */ | |
| 2985 if (EQ (next_window, last_window)) | |
| 2986 { | |
| 2987 last_window = w; | |
| 2988 break; | |
| 2989 } | |
| 2990 next_window = Fnext_window (next_window, | |
| 2991 mini ? Qt : Qnil, | |
| 2992 frame_arg, Qt); | |
| 2993 } | |
| 2994 /* Now we can safely delete the frame. */ | |
| 2995 Fdelete_frame (WINDOW_FRAME (p), Qnil); | |
| 2996 } | |
| 2997 else | |
| 2998 /* If we're deleting the buffer displayed in | |
| 2999 the only window on the frame, find a new | |
| 3000 buffer to display there. */ | |
| 3001 if (NILP (p->parent)) | |
| 3002 { | |
| 3003 Lisp_Object new_buffer; | |
| 3004 new_buffer = Fother_buffer (obj, Qnil, Qnil); | |
| 3005 if (NILP (new_buffer)) | |
| 3006 new_buffer = Fget_buffer_create (QSscratch); | |
| 440 | 3007 Fset_window_buffer (w, new_buffer, Qnil); |
| 428 | 3008 if (EQ (w, Fselected_window (Qnil))) |
| 3009 Fset_buffer (p->buffer); | |
| 3010 } | |
| 3011 else | |
| 3012 Fdelete_window (w, Qnil); | |
| 3013 } | |
| 3014 break; | |
| 3015 } | |
| 3016 | |
| 3017 case GET_LARGEST_WINDOW: | |
| 3018 { | |
| 3019 /* Ignore dedicated windows and minibuffers. */ | |
| 3020 if (MINI_WINDOW_P (p) | |
| 3021 || (dedicated_too ? 0 : !NILP (p->dedicated))) | |
| 3022 break; | |
| 3023 { | |
| 3024 /* write the check as follows to avoid tripping | |
| 3025 error_check_window() --ben */ | |
| 3026 struct window *b = NILP (best_window) ? 0 : | |
| 3027 XWINDOW (best_window); | |
| 3028 if (NILP (best_window) | |
| 3029 || ((WINDOW_HEIGHT (p) * WINDOW_WIDTH (p)) | |
| 3030 > (WINDOW_HEIGHT (b) * WINDOW_WIDTH (b)))) | |
| 3031 best_window = w; | |
| 3032 } | |
| 3033 break; | |
| 3034 } | |
| 3035 | |
| 3036 default: | |
| 2500 | 3037 ABORT (); |
| 428 | 3038 } |
| 3039 | |
| 3040 if (EQ (w, last_window)) | |
| 3041 break; | |
| 3042 | |
| 3043 w = next_window; | |
| 3044 } | |
| 3045 } | |
| 3046 | |
|
5581
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
3047 return type == GET_BUFFER_WINDOW_COUNT ? make_fixnum (count) : best_window; |
| 428 | 3048 } |
| 3049 | |
| 3050 #if 0 /* not currently used */ | |
| 3051 | |
| 3052 int | |
| 3053 buffer_window_count (struct buffer *b, struct frame *f) | |
| 3054 { | |
| 3055 Lisp_Object buffer, frame; | |
| 3056 | |
| 793 | 3057 frame = wrap_frame (f); |
| 3058 buffer = wrap_buffer (b); | |
| 428 | 3059 |
|
5581
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Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
3060 return XFIXNUM (window_loop (GET_BUFFER_WINDOW_COUNT, buffer, 0, frame, 1, |
| 428 | 3061 Qnil)); |
| 3062 } | |
| 3063 | |
| 3064 int | |
| 3065 buffer_window_mru (struct window *w) | |
| 3066 { | |
| 3067 Lisp_Object window = | |
| 3068 window_loop (GET_BUFFER_MRU_WINDOW, w->buffer, 0, w->frame, 1, Qnil); | |
| 3069 | |
| 3070 if (NILP (window)) | |
| 3071 return 0; | |
| 3072 else if (XWINDOW (window) == w) | |
| 3073 return 1; | |
| 3074 else | |
| 3075 return 0; | |
| 3076 } | |
| 3077 | |
| 3078 #endif | |
| 3079 | |
| 3080 | |
| 3081 DEFUN ("get-lru-window", Fget_lru_window, 0, 2, 0, /* | |
| 3082 Return the window least recently selected or used for display. | |
| 444 | 3083 |
| 3084 By default, only the windows in the selected frame are considered. | |
| 3085 The optional argument WHICH-FRAMES changes this behavior: | |
| 3086 If optional argument WHICH-FRAMES is `visible', search all visible frames. | |
| 3087 If WHICH-FRAMES is 0, search all visible and iconified frames. | |
| 3088 If WHICH-FRAMES is t, search all frames. | |
| 3089 If WHICH-FRAMES is nil, search only the selected frame. | |
| 3090 If WHICH-FRAMES is a frame, search only that frame. | |
| 3091 | |
| 3092 The optional argument WHICH-DEVICES further clarifies on which devices | |
| 3093 to search for frames as specified by WHICH-FRAMES. This value is only | |
| 3094 meaningful if WHICH-FRAMES is non-nil. | |
| 3095 If nil or omitted, search all devices on the selected console. | |
| 3096 If a device, only search that device. | |
| 3097 If a console, search all devices on that console. | |
| 3098 If a device type, search all devices of that type. | |
| 3099 If `window-system', search all devices on window-system consoles. | |
| 3100 Any other non-nil value means search all devices. | |
| 428 | 3101 */ |
| 444 | 3102 (which_frames, which_devices)) |
| 428 | 3103 { |
| 3104 Lisp_Object w; | |
| 3105 /* First try for a non-dedicated window that is full-width */ | |
| 444 | 3106 w = window_loop (GET_LRU_WINDOW, Qt, 0, which_frames, 0, which_devices); |
| 428 | 3107 if (!NILP (w) && !EQ (w, Fselected_window (Qnil))) |
| 3108 return w; | |
| 3109 | |
| 3110 /* Then try for any non-dedicated window */ | |
| 444 | 3111 w = window_loop (GET_LRU_WINDOW, Qnil, 0, which_frames, 0, which_devices); |
| 428 | 3112 if (!NILP (w) && !EQ (w, Fselected_window (Qnil))) |
| 3113 return w; | |
| 3114 | |
| 3115 #if 0 | |
| 3116 /* FSFmacs never returns a dedicated window here. If we do, | |
| 3117 it makes `display-buffer' not work right. #### All of this | |
| 3118 shit is so disgusting and awful that it needs to be rethought | |
| 3119 from scratch. */ | |
| 3120 /* then try for a dedicated window that is full-width */ | |
| 444 | 3121 w = window_loop (GET_LRU_WINDOW, Qt, 0, which_frames, 1, which_devices); |
| 428 | 3122 if (!NILP (w) && !EQ (w, Fselected_window (Qnil))) |
| 3123 return w; | |
| 3124 | |
| 3125 /* If none of them, then all windows, dedicated or not. */ | |
| 444 | 3126 w = window_loop (GET_LRU_WINDOW, Qnil, 0, which_frames, 1, which_devices); |
| 428 | 3127 |
| 3128 /* At this point we damn well better have found something. */ | |
|
5050
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Ben Wing <ben@xemacs.org>
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4967
diff
changeset
|
3129 assert (!NILP (w)); |
| 428 | 3130 #endif |
| 3131 | |
| 3132 return w; | |
| 3133 } | |
| 3134 | |
| 3135 DEFUN ("get-largest-window", Fget_largest_window, 0, 2, 0, /* | |
| 3136 Return the window largest in area. | |
| 444 | 3137 |
| 3138 By default, only the windows in the selected frame are considered. | |
| 3139 The optional argument WHICH-FRAMES changes this behavior: | |
| 3140 If optional argument WHICH-FRAMES is `visible', search all visible frames. | |
| 3141 If WHICH-FRAMES is 0, search all visible and iconified frames. | |
| 3142 If WHICH-FRAMES is t, search all frames. | |
| 3143 If WHICH-FRAMES is nil, search only the selected frame. | |
| 3144 If WHICH-FRAMES is a frame, search only that frame. | |
| 3145 | |
| 3146 The optional argument WHICH-DEVICES further clarifies on which devices | |
| 3147 to search for frames as specified by WHICH-FRAMES. This value is only | |
| 3148 meaningful if WHICH-FRAMES is non-nil. | |
| 3149 If nil or omitted, search all devices on the selected console. | |
| 3150 If a device, only search that device. | |
| 3151 If a console, search all devices on that console. | |
| 3152 If a device type, search all devices of that type. | |
| 3153 If `window-system', search all devices on window-system consoles. | |
| 3154 Any other non-nil value means search all devices. | |
| 428 | 3155 */ |
| 444 | 3156 (which_frames, which_devices)) |
| 428 | 3157 { |
| 3158 /* Don't search dedicated windows because FSFmacs doesn't. | |
| 3159 This stuff is all black magic so don't try to apply common | |
| 3160 sense to it. */ | |
| 444 | 3161 return window_loop (GET_LARGEST_WINDOW, Qnil, 0, |
| 3162 which_frames, 0, which_devices); | |
| 428 | 3163 } |
| 3164 | |
| 3165 DEFUN ("get-buffer-window", Fget_buffer_window, 1, 3, 0, /* | |
| 3166 Return a window currently displaying BUFFER, or nil if none. | |
| 444 | 3167 |
| 3168 By default, only the windows in the selected frame are considered. | |
| 3169 The optional argument WHICH-FRAMES changes this behavior: | |
| 3170 If optional argument WHICH-FRAMES is `visible', search all visible frames. | |
| 3171 If WHICH-FRAMES is 0, search all visible and iconified frames. | |
| 3172 If WHICH-FRAMES is t, search all frames. | |
| 3173 If WHICH-FRAMES is nil, search only the selected frame. | |
| 3174 If WHICH-FRAMES is a frame, search only that frame. | |
| 3175 | |
| 3176 The optional argument WHICH-DEVICES further clarifies on which devices | |
| 3177 to search for frames as specified by WHICH-FRAMES. This value is only | |
| 3178 meaningful if WHICH-FRAMES is non-nil. | |
| 3179 If nil or omitted, search all devices on the selected console. | |
| 3180 If a device, only search that device. | |
| 3181 If a console, search all devices on that console. | |
| 3182 If a device type, search all devices of that type. | |
| 3183 If `window-system', search all devices on window-system consoles. | |
| 3184 Any other non-nil value means search all devices. | |
| 428 | 3185 */ |
| 444 | 3186 (buffer, which_frames, which_devices)) |
| 428 | 3187 { |
| 3188 buffer = Fget_buffer (buffer); | |
| 3189 if (BUFFERP (buffer)) | |
| 3190 /* Search dedicated windows too. (Doesn't matter here anyway.) */ | |
| 444 | 3191 return window_loop (GET_BUFFER_WINDOW, buffer, 1, |
| 3192 which_frames, 1, which_devices); | |
| 428 | 3193 else |
| 3194 return Qnil; | |
| 3195 } | |
| 3196 | |
| 3197 /* These functions used to be `buffer-left-margin-pixel-width', etc. | |
| 3198 but there is no sensible way to implement those functions, since | |
| 3199 you can't in general derive a window from a buffer. */ | |
| 3200 | |
| 3201 DEFUN ("window-left-margin-pixel-width", Fwindow_left_margin_pixel_width, | |
| 3202 0, 1, 0, /* | |
| 3203 Return the width in pixels of the left outside margin of window WINDOW. | |
| 3204 If WINDOW is nil, the selected window is assumed. | |
| 3205 */ | |
| 3206 (window)) | |
| 3207 { | |
|
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Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
3208 return make_fixnum (window_left_margin_width (decode_window (window))); |
| 428 | 3209 } |
| 3210 | |
| 3211 DEFUN ("window-right-margin-pixel-width", Fwindow_right_margin_pixel_width, | |
| 3212 0, 1, 0, /* | |
| 3213 Return the width in pixels of the right outside margin of window WINDOW. | |
| 3214 If WINDOW is nil, the selected window is assumed. | |
| 3215 */ | |
| 3216 (window)) | |
| 3217 { | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
3218 return make_fixnum (window_right_margin_width (decode_window (window))); |
| 428 | 3219 } |
| 3220 | |
| 3221 DEFUN ("delete-other-windows", Fdelete_other_windows, 0, 1, "", /* | |
| 3222 Make WINDOW (or the selected window) fill its frame. | |
| 3223 Only the frame WINDOW is on is affected. | |
| 3224 This function tries to reduce display jumps | |
| 3225 by keeping the text previously visible in WINDOW | |
| 3226 in the same place on the frame. Doing this depends on | |
| 3227 the value of (window-start WINDOW), so if calling this function | |
| 3228 in a program gives strange scrolling, make sure the window-start | |
| 3229 value is reasonable when this function is called. | |
| 3230 */ | |
| 3231 (window)) | |
| 3232 { | |
| 3233 struct window *w = decode_window (window); | |
| 1207 | 3234 struct buffer *b; |
| 665 | 3235 Charbpos start_pos; |
| 428 | 3236 int old_top = WINDOW_TOP (w); |
| 3237 | |
| 1207 | 3238 if (NILP (WINDOW_BUFFER (w))) |
| 3239 invalid_operation ("Can't delete other windows of combination", window); | |
| 3240 | |
| 793 | 3241 window = wrap_window (w); |
| 1207 | 3242 b = XBUFFER (WINDOW_BUFFER (w)); |
| 428 | 3243 |
| 3244 if (MINI_WINDOW_P (w) && old_top > 0) | |
| 563 | 3245 invalid_operation ("Can't expand minibuffer to full frame", Qunbound); |
| 428 | 3246 |
| 3247 /* Ignore dedicated windows. */ | |
| 3248 window_loop (DELETE_OTHER_WINDOWS, window, 0, w->frame, 0, Qnil); | |
| 3249 | |
| 3250 start_pos = marker_position (w->start[CURRENT_DISP]); | |
| 3251 | |
| 3252 /* Try to minimize scrolling, by setting the window start to the | |
| 3253 point which will cause the text at the old window start to be at | |
| 3254 the same place on the frame. But don't try to do this if the | |
| 3255 window start is outside the visible portion (as might happen when | |
| 3256 the display is not current, due to typeahead). */ | |
| 3257 if (start_pos >= BUF_BEGV (b) && start_pos <= BUF_ZV (b) | |
| 3258 && !MINI_WINDOW_P (w)) | |
| 3259 { | |
| 665 | 3260 Charbpos new_start = start_with_line_at_pixpos (w, start_pos, old_top); |
| 428 | 3261 |
| 3262 if (new_start >= BUF_BEGV (b) && new_start <= BUF_ZV (b)) | |
| 3263 { | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
3264 Fset_marker (w->start[CURRENT_DISP], make_fixnum (new_start), |
| 428 | 3265 w->buffer); |
| 3266 w->start_at_line_beg = beginning_of_line_p (b, new_start); | |
| 3267 } | |
| 3268 /* We need to do this, so that the window-scroll-functions | |
| 3269 get called. */ | |
| 3270 w->force_start = 1; | |
| 3271 } | |
| 3272 | |
| 3273 return Qnil; | |
| 3274 } | |
| 3275 | |
| 3276 DEFUN ("delete-windows-on", Fdelete_windows_on, 1, 3, | |
| 3277 "bDelete windows on (buffer): ", /* | |
| 3278 Delete all windows showing BUFFER. | |
| 444 | 3279 |
| 3280 Optional second argument WHICH-FRAMES controls which frames are affected. | |
| 428 | 3281 If nil or omitted, delete all windows showing BUFFER in any frame. |
| 3282 If t, delete only windows showing BUFFER in the selected frame. | |
| 3283 If `visible', delete all windows showing BUFFER in any visible frame. | |
| 3284 If a frame, delete only windows showing BUFFER in that frame. | |
| 444 | 3285 Warning: WHICH-FRAMES has the same meaning as with `next-window', |
| 3286 except that the meanings of nil and t are reversed. | |
| 3287 | |
| 3288 The optional third argument WHICH-DEVICES further clarifies on which | |
| 3289 devices to search for frames as specified by WHICH-FRAMES. This value | |
| 3290 is only meaningful if WHICH-FRAMES is not t. | |
| 3291 If nil or omitted, search only the selected console. | |
| 3292 If a device, only search that device. | |
| 3293 If a console, search all devices on that console. | |
| 3294 If a device type, search all devices of that type. | |
| 3295 If `window-system', search all devices on a window system. | |
| 3296 Any other non-nil value means search all devices. | |
| 428 | 3297 */ |
| 444 | 3298 (buffer, which_frames, which_devices)) |
| 428 | 3299 { |
| 3300 /* This function can GC */ | |
| 444 | 3301 buffer = Fget_buffer (buffer); |
| 3302 CHECK_BUFFER (buffer); | |
| 3303 | |
| 3304 /* WHICH-FRAMES values t and nil mean the opposite of what | |
| 3305 window_loop expects. */ | |
| 3306 if (EQ (which_frames, Qnil)) | |
| 3307 which_frames = Qt; | |
| 3308 else if (EQ (which_frames, Qt)) | |
| 3309 which_frames = Qnil; | |
| 3310 | |
| 3311 /* Ignore dedicated windows. */ | |
| 3312 window_loop (DELETE_BUFFER_WINDOWS, buffer, 0, | |
| 3313 which_frames, 0, which_devices); | |
| 428 | 3314 return Qnil; |
| 3315 } | |
| 3316 | |
| 448 | 3317 static Lisp_Object |
| 3318 list_windows (struct window *w, Lisp_Object value) | |
| 3319 { | |
| 3320 for (;;) | |
| 3321 { | |
| 3322 if (!NILP (w->hchild)) | |
| 3323 value = list_windows (XWINDOW (w->hchild), value); | |
| 3324 else if (!NILP (w->vchild)) | |
| 3325 value = list_windows (XWINDOW (w->vchild), value); | |
| 3326 else | |
| 3327 { | |
| 793 | 3328 Lisp_Object window = wrap_window (w); |
| 3329 | |
| 448 | 3330 value = Fcons (window, value); |
| 3331 } | |
| 3332 if (NILP (w->next)) | |
| 3333 break; | |
| 3334 w = XWINDOW (w->next); | |
| 3335 } | |
| 3336 return value; | |
| 3337 } | |
| 3338 | |
| 3339 static Lisp_Object | |
| 3340 list_all_windows (Lisp_Object frame_spec, Lisp_Object device_spec) | |
| 3341 { | |
| 3342 Lisp_Object devcons, concons; | |
| 3343 Lisp_Object retval = Qnil; | |
| 3344 | |
| 3345 DEVICE_LOOP_NO_BREAK (devcons, concons) | |
| 3346 { | |
| 3347 Lisp_Object frame_list, the_window; | |
| 3348 Lisp_Object device, tail; | |
| 3349 | |
| 3350 device = XCAR (devcons); | |
| 3351 frame_list = DEVICE_FRAME_LIST (XDEVICE (device)); | |
| 3352 | |
| 3353 LIST_LOOP (tail, frame_list) | |
| 3354 { | |
| 3355 if ((NILP (frame_spec) | |
| 3356 && !EQ (XCAR (tail), DEVICE_SELECTED_FRAME (XDEVICE (device)))) | |
| 3357 || (EQ (frame_spec, Qvisible) | |
| 3358 && !FRAME_VISIBLE_P (XFRAME (XCAR (tail)))) | |
| 3359 || (FRAMEP (frame_spec) | |
| 3360 && !EQ (frame_spec, XCAR (tail))) | |
| 3361 || (!NILP (frame_spec) | |
| 3362 && !device_matches_device_spec (device, | |
| 3363 NILP (device_spec) ? | |
| 3364 Vselected_console : | |
| 3365 device_spec))) | |
| 3366 continue; | |
| 3367 the_window = FRAME_ROOT_WINDOW (XFRAME (XCAR (tail))); | |
| 3368 retval = list_windows (XWINDOW (the_window), retval); | |
| 3369 } | |
| 3370 } | |
| 3371 return Fnreverse (retval); | |
| 3372 } | |
| 3373 | |
| 444 | 3374 DEFUN ("replace-buffer-in-windows", Freplace_buffer_in_windows, 1, 3, |
| 428 | 3375 "bReplace buffer in windows: ", /* |
| 3376 Replace BUFFER with some other buffer in all windows showing it. | |
| 444 | 3377 |
| 3378 Optional second argument WHICH-FRAMES controls which frames are affected. | |
| 3379 If nil or omitted, all frames are affected. | |
| 3380 If t, only the selected frame is affected. | |
| 3381 If `visible', all visible frames are affected. | |
| 3382 If a frame, only that frame is affected. | |
| 3383 Warning: WHICH-FRAMES has the same meaning as with `next-window', | |
| 3384 except that the meanings of nil and t are reversed. | |
| 3385 | |
| 3386 The optional third argument WHICH-DEVICES further clarifies on which | |
| 3387 devices to search for frames as specified by WHICH-FRAMES. This value | |
| 3388 is only meaningful if WHICH-FRAMES is not t. | |
| 3389 If nil or omitted, search only the selected console. | |
| 3390 If a device, only search that device. | |
| 3391 If a console, search all devices on that console. | |
| 3392 If a device type, search all devices of that type. | |
| 3393 If `window-system', search all devices on a window system. | |
| 3394 Any other non-nil value means search all devices. | |
| 428 | 3395 */ |
| 444 | 3396 (buffer, which_frames, which_devices)) |
| 428 | 3397 { |
| 3398 /* This function can GC */ | |
| 448 | 3399 Lisp_Object window_list; |
| 3400 Lisp_Object tail; | |
| 3401 struct gcpro gcpro1, gcpro2; | |
| 3402 | |
| 444 | 3403 if (EQ (which_frames, Qnil)) |
| 3404 which_frames = Qt; | |
| 3405 else if (EQ (which_frames, Qt)) | |
| 3406 which_frames = Qnil; | |
| 448 | 3407 window_list = list_all_windows (which_frames, which_devices); |
| 3408 | |
| 3409 buffer = Fget_buffer (buffer); | |
| 3410 CHECK_BUFFER (buffer); | |
| 3411 | |
| 3412 GCPRO2 (window_list, buffer); | |
| 3413 LIST_LOOP (tail, window_list) | |
| 3414 { | |
| 3415 Lisp_Object window = XCAR (tail); | |
| 3416 if (!MINI_WINDOW_P (XWINDOW (window)) | |
| 3417 && EQ (XWINDOW (window)->buffer, buffer)) | |
| 3418 { | |
| 3419 Lisp_Object another_buffer = Fother_buffer (buffer, Qnil, Qnil); | |
| 3420 Lisp_Object frame = WINDOW_FRAME (XWINDOW (window)); | |
| 3421 if (NILP (another_buffer)) | |
| 3422 another_buffer = Fget_buffer_create (QSscratch); | |
| 3423 if (!NILP (XWINDOW (window)->dedicated) | |
| 3424 && EQ (window, | |
| 3425 FRAME_ROOT_WINDOW (XFRAME (frame))) | |
| 1979 | 3426 && (allow_deletion_of_last_visible_frame |
| 3427 || other_visible_frames (XFRAME (frame)))) | |
| 448 | 3428 { |
| 3429 delete_frame_internal (XFRAME (frame), 0, 0, 0); /* GC */ | |
| 3430 } | |
| 3431 else | |
| 3432 { | |
| 3433 Fset_window_buffer (window, another_buffer, Qnil); | |
| 3434 if (EQ (window, Fselected_window (Qnil))) | |
| 3435 Fset_buffer (XWINDOW (window)->buffer); | |
| 3436 } | |
| 3437 } | |
| 3438 } | |
| 3439 UNGCPRO; | |
| 428 | 3440 return Qnil; |
| 3441 } | |
| 3442 | |
| 3443 /* The smallest acceptable dimensions for a window. Anything smaller | |
| 3444 might crash Emacs. */ | |
| 3445 #define MIN_SAFE_WINDOW_WIDTH (2) | |
| 3446 #define MIN_SAFE_WINDOW_HEIGHT (2) | |
| 3447 | |
| 3448 /* Make sure that window_min_height and window_min_width are | |
| 3449 not too small; if they are, set them to safe minima. */ | |
| 3450 | |
| 3451 static void | |
| 3452 check_min_window_sizes (void) | |
| 3453 { | |
| 3454 /* Smaller values might permit a crash. */ | |
| 3455 if (window_min_width < MIN_SAFE_WINDOW_WIDTH) | |
| 3456 window_min_width = MIN_SAFE_WINDOW_WIDTH; | |
| 3457 if (window_min_height < MIN_SAFE_WINDOW_HEIGHT) | |
| 3458 window_min_height = MIN_SAFE_WINDOW_HEIGHT; | |
| 3459 } | |
| 3460 | |
| 440 | 3461 static int |
| 3462 frame_min_height (struct frame *frame) | |
| 3463 { | |
| 3464 /* For height, we have to see whether the frame has a minibuffer, and | |
| 3465 whether it wants a modeline. */ | |
| 3466 return (FRAME_MINIBUF_ONLY_P (frame) ? MIN_SAFE_WINDOW_HEIGHT - 1 | |
| 3467 : (! FRAME_HAS_MINIBUF_P (frame)) ? MIN_SAFE_WINDOW_HEIGHT | |
| 3468 : 2 * MIN_SAFE_WINDOW_HEIGHT - 1); | |
| 3469 } | |
| 3470 | |
| 3471 /* Return non-zero if both frame sizes are less than or equal to | |
| 3472 minimal allowed values. ROWS and COLS are in characters */ | |
|
5047
07dcc7000bbf
put width before height consistently, fix a real bug found in the process
Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
3473 static int |
|
07dcc7000bbf
put width before height consistently, fix a real bug found in the process
Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
3474 frame_size_valid_p (struct frame *frame, int cols, int rows) |
| 440 | 3475 { |
| 3476 return (rows >= frame_min_height (frame) | |
| 3477 && cols >= MIN_SAFE_WINDOW_WIDTH); | |
| 3478 } | |
| 3479 | |
| 3480 /* Return non-zero if both frame sizes are less than or equal to | |
| 3481 minimal allowed values. WIDTH and HEIGHT are in pixels */ | |
| 3482 int | |
| 3483 frame_pixsize_valid_p (struct frame *frame, int width, int height) | |
| 3484 { | |
| 3485 int rows, cols; | |
| 5043 | 3486 pixel_to_char_size (frame, width, height, &cols, &rows); |
|
5047
07dcc7000bbf
put width before height consistently, fix a real bug found in the process
Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
3487 return frame_size_valid_p (frame, cols, rows); |
| 440 | 3488 } |
| 3489 | |
| 428 | 3490 /* If *ROWS or *COLS are too small a size for FRAME, set them to the |
| 3491 minimum allowable size. */ | |
| 3492 void | |
|
5047
07dcc7000bbf
put width before height consistently, fix a real bug found in the process
Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
3493 check_frame_size (struct frame *frame, int *cols, int *rows) |
| 428 | 3494 { |
| 440 | 3495 int min_height = frame_min_height (frame); |
| 5043 | 3496 int min_pixwidth, min_pixheight; |
| 3497 int min_geomwidth, min_geomheight; | |
| 3498 | |
| 3499 /* There is no char_to_frame_unit_size(). This can be done with | |
| 3500 frame_conversion_internal(), but that's currently static, and we can | |
| 3501 do it fine with two steps, as follows. */ | |
| 3502 char_to_pixel_size (frame, MIN_SAFE_WINDOW_WIDTH, min_height, | |
| 3503 &min_pixwidth, &min_pixheight); | |
| 3504 pixel_to_frame_unit_size (frame, min_pixwidth, min_pixheight, | |
| 3505 &min_geomwidth, &min_geomheight); | |
| 3506 if (*rows < min_geomheight) | |
| 3507 *rows = min_geomheight; | |
| 3508 if (*cols < min_geomwidth) | |
| 3509 *cols = min_geomwidth; | |
| 428 | 3510 } |
| 3511 | |
| 3512 /* Normally the window is deleted if it gets too small. | |
| 3513 nodelete nonzero means do not do this. | |
| 3514 (The caller should check later and do so if appropriate) */ | |
| 3515 static void | |
| 3516 set_window_pixsize (Lisp_Object window, int new_pixsize, int nodelete, | |
| 3517 int set_height) | |
| 3518 { | |
| 3519 struct window *w = XWINDOW (window); | |
| 3520 struct frame *f = XFRAME (w->frame); | |
| 3521 struct window *c; | |
| 3522 int old_pixsize = (set_height ? WINDOW_HEIGHT (w) : WINDOW_WIDTH (w)); | |
| 3523 Lisp_Object child, minor_kid, major_kid; | |
| 3524 int minsize; | |
| 3525 int line_size; | |
| 3526 int defheight, defwidth; | |
| 3527 | |
|
5047
07dcc7000bbf
put width before height consistently, fix a real bug found in the process
Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
3528 default_face_width_and_height (window, &defwidth, &defheight); |
| 428 | 3529 line_size = (set_height ? defheight : defwidth); |
| 3530 | |
| 3531 check_min_window_sizes (); | |
| 3532 | |
| 3533 minsize = (set_height ? window_min_height : window_min_width); | |
| 3534 minsize *= line_size; | |
| 3535 | |
| 3536 if (!nodelete | |
| 3537 && !TOP_LEVEL_WINDOW_P (w) | |
|
4375
74e0e1131e01
Update window-size computation.
Mike Sperber <sperber@deinprogramm.de>
parents:
3707
diff
changeset
|
3538 && (new_pixsize + window_modeline_height (w)) < minsize) |
| 428 | 3539 { |
| 3540 Fdelete_window (window, Qnil); | |
| 3541 return; | |
| 3542 } | |
| 3543 | |
| 3544 SET_LAST_MODIFIED (w, 0); | |
| 3545 SET_LAST_FACECHANGE (w); | |
| 3546 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f); /* multiple windows affected */ | |
| 3547 if (set_height) | |
| 3548 { | |
| 3549 WINDOW_HEIGHT (w) = new_pixsize; | |
| 3550 major_kid = w->vchild; | |
| 3551 minor_kid = w->hchild; | |
| 3552 } | |
| 3553 else | |
| 3554 { | |
| 3555 WINDOW_WIDTH (w) = new_pixsize; | |
| 3556 major_kid = w->hchild; | |
| 3557 minor_kid = w->vchild; | |
| 3558 } | |
| 3559 | |
| 3560 if (!NILP (minor_kid)) | |
| 3561 { | |
| 3562 for (child = minor_kid; !NILP (child); child = XWINDOW (child)->next) | |
| 3563 { | |
| 3564 if (set_height) | |
| 3565 WINDOW_TOP (XWINDOW (child)) = WINDOW_TOP (w); | |
| 3566 else | |
| 3567 WINDOW_LEFT (XWINDOW (child)) = WINDOW_LEFT (w); | |
| 3568 | |
| 3569 set_window_pixsize (child, new_pixsize, nodelete, set_height); | |
| 3570 } | |
| 3571 } | |
| 3572 else if (!NILP (major_kid)) | |
| 3573 { | |
| 3574 int last_pos, last_old_pos, pos, old_pos, first; | |
| 3575 int pixel_adj_left = new_pixsize - old_pixsize; | |
| 3576 int div_val = old_pixsize << 1; | |
| 3577 | |
| 3578 /* | |
| 3579 * Previously we bailed out here if there was no size change. | |
| 3580 * (pixel_adj_left == 0) But this broke toolbar updates. If a | |
| 3581 * toolbar appears or disappears, windows may not change size, | |
| 3582 * but their top and left coordinates need to be updated. | |
| 3583 * | |
| 3584 * So we don't bail until after the loop below. | |
| 3585 */ | |
| 3586 | |
| 3587 last_pos = first = (set_height ? WINDOW_TOP (w) : WINDOW_LEFT (w)); | |
| 3588 last_old_pos = 0; | |
| 3589 | |
| 3590 for (child = major_kid; !NILP (child); child = c->next) | |
| 3591 { | |
| 3592 c = XWINDOW (child); | |
| 3593 | |
| 3594 if (set_height) | |
| 3595 { | |
| 3596 old_pos = last_old_pos + WINDOW_HEIGHT (c); | |
| 3597 WINDOW_TOP (c) = last_pos; | |
| 3598 } | |
| 3599 else | |
| 3600 { | |
| 3601 old_pos = last_old_pos + WINDOW_WIDTH (c); | |
| 3602 WINDOW_LEFT (c) = last_pos; | |
| 3603 } | |
| 3604 | |
| 3605 pos = (((old_pos * new_pixsize) << 1) + old_pixsize) / div_val; | |
| 3606 /* All but the last window should have a height which is | |
| 3607 a multiple of the default line height. */ | |
| 3608 if (!NILP (c->next)) | |
|
4446
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3609 { |
|
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3610 /* |
|
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3611 * 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
|
3612 * 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
|
3613 * cancel out actually do cancel out. |
|
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3614 */ |
|
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3615 if (pixel_adj_left < 0) |
|
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3616 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
|
3617 else |
|
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3618 pos = (pos / line_size) * line_size; |
|
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3619 } |
| 428 | 3620 |
| 3621 /* Avoid confusion: don't delete child if it becomes too small */ | |
| 3622 set_window_pixsize (child, pos + first - last_pos, 1, set_height); | |
| 3623 | |
| 3624 last_pos = pos + first; | |
| 3625 last_old_pos = old_pos; | |
| 3626 } | |
| 3627 | |
| 3628 /* Sometimes we may get called with our old size. In that case | |
| 3629 we don't need to do anything else. */ | |
| 3630 if (!pixel_adj_left) | |
| 3631 return; | |
| 3632 | |
| 3633 /* Now delete any children that became too small. */ | |
| 3634 if (!nodelete) | |
| 3635 for (child = major_kid; !NILP (child); child = XWINDOW (child)->next) | |
| 3636 { | |
| 3637 if (set_height) | |
| 3638 set_window_pixheight (child, WINDOW_HEIGHT (XWINDOW (child)), 0); | |
| 3639 else | |
| 3640 set_window_pixwidth (child, WINDOW_WIDTH (XWINDOW (child)), 0); | |
| 3641 } | |
| 3642 } | |
| 3643 } | |
| 3644 | |
| 3645 /* Set the height of WINDOW and all its inferiors. */ | |
| 3646 void | |
| 3647 set_window_pixheight (Lisp_Object window, int new_pixheight, int nodelete) | |
| 3648 { | |
| 3649 set_window_pixsize (window, new_pixheight, nodelete, 1); | |
| 3650 } | |
| 3651 | |
| 3652 /* Recursively set width of WINDOW and its inferiors. */ | |
| 3653 void | |
| 3654 set_window_pixwidth (Lisp_Object window, int new_pixwidth, int nodelete) | |
| 3655 { | |
| 3656 set_window_pixsize (window, new_pixwidth, nodelete, 0); | |
| 3657 } | |
| 3658 | |
| 3659 | |
| 3660 static int window_select_count; | |
| 3661 | |
| 440 | 3662 DEFUN ("set-window-buffer", Fset_window_buffer, 2, 3, 0, /* |
| 428 | 3663 Make WINDOW display BUFFER as its contents. |
| 3664 BUFFER can be a buffer or buffer name. | |
| 440 | 3665 |
| 442 | 3666 With non-nil optional argument NORECORD, do not modify the |
| 440 | 3667 global or per-frame buffer ordering. |
| 428 | 3668 */ |
| 440 | 3669 (window, buffer, norecord)) |
| 428 | 3670 { |
| 3671 Lisp_Object tem; | |
| 3672 struct window *w = decode_window (window); | |
| 448 | 3673 int old_buffer_local_face_property = 0; |
| 428 | 3674 |
| 3675 buffer = Fget_buffer (buffer); | |
| 3676 CHECK_BUFFER (buffer); | |
| 3677 | |
| 3678 if (!BUFFER_LIVE_P (XBUFFER (buffer))) | |
| 563 | 3679 invalid_operation ("Attempt to display deleted buffer", Qunbound); |
| 428 | 3680 |
| 3681 tem = w->buffer; | |
| 3682 if (NILP (tem)) | |
| 563 | 3683 invalid_operation ("Window is deleted", Qunbound); |
| 428 | 3684 else if (EQ (tem, buffer)) |
| 3685 return Qnil; | |
| 3686 else if (! EQ (tem, Qt)) /* w->buffer is t when the window | |
| 3687 is first being set up. */ | |
| 3688 { | |
| 3689 if (!NILP (w->dedicated) && !EQ (tem, buffer)) | |
| 563 | 3690 signal_error (Qinvalid_operation, "Window is dedicated to buffer", tem); |
| 428 | 3691 |
| 448 | 3692 old_buffer_local_face_property = |
| 3693 XBUFFER (w->buffer)->buffer_local_face_property; | |
| 428 | 3694 unshow_buffer (w); |
| 3695 } | |
| 3696 | |
| 3697 w->buffer = buffer; | |
| 3698 w->window_end_pos[CURRENT_DISP] = 0; | |
| 3699 w->hscroll = 0; | |
| 3700 w->modeline_hscroll = 0; | |
| 844 | 3701 #if 0 /* pre point caches */ |
| 428 | 3702 Fset_marker (w->pointm[CURRENT_DISP], |
|
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
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5474
diff
changeset
|
3703 make_fixnum (BUF_PT (XBUFFER (buffer))), |
| 428 | 3704 buffer); |
| 3705 set_marker_restricted (w->start[CURRENT_DISP], | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
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5474
diff
changeset
|
3706 make_fixnum (XBUFFER (buffer)->last_window_start), |
| 428 | 3707 buffer); |
| 844 | 3708 #else |
| 3709 { | |
| 3710 Lisp_Object marker = Fgethash (buffer, w->saved_point_cache, Qnil); | |
| 3711 Lisp_Object newpoint = | |
|
5581
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
3712 !NILP (marker) ? make_fixnum (marker_position (marker)) : |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
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5474
diff
changeset
|
3713 make_fixnum (BUF_PT (XBUFFER (buffer))); |
| 844 | 3714 /* Previously, we had in here set-window-point, which did one of the |
| 3715 following two, but not both. However, that could result in pointm | |
| 3716 being in a different buffer from the window's buffer! Probably | |
| 3717 not a travesty since it always occurred when the window was | |
| 3718 selected, meaning its value of point was ignored in favor of the | |
| 3719 buffer's; but it tripped an assert() in unshow_buffer(). */ | |
| 3720 set_marker_restricted (w->pointm[CURRENT_DISP], newpoint, buffer); | |
| 3721 if (EQ (wrap_window (w), Fselected_window (Qnil))) | |
| 3722 Fgoto_char (newpoint, buffer); /* this will automatically clip to | |
| 3723 accessible */ | |
| 3724 marker = Fgethash (buffer, w->saved_last_window_start_cache, Qnil); | |
| 3725 set_marker_restricted (w->start[CURRENT_DISP], | |
| 3726 !NILP (marker) ? | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
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5474
diff
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|
3727 make_fixnum (marker_position (marker)) : |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
3728 make_fixnum (XBUFFER (buffer)->last_window_start), |
| 844 | 3729 buffer); |
| 3730 } | |
| 3731 #endif | |
| 3732 | |
| 428 | 3733 Fset_marker (w->sb_point, w->start[CURRENT_DISP], buffer); |
| 3734 /* set start_at_line_beg correctly. GE */ | |
| 844 | 3735 w->start_at_line_beg = |
| 3736 beginning_of_line_p (XBUFFER (buffer), | |
| 3737 marker_position (w->start[CURRENT_DISP])); | |
| 3738 w->force_start = 0; /* XEmacs fix */ | |
| 428 | 3739 SET_LAST_MODIFIED (w, 1); |
| 3740 SET_LAST_FACECHANGE (w); | |
| 3741 MARK_WINDOWS_CHANGED (w); | |
| 448 | 3742 { |
| 3743 int new_buffer_local_face_property = | |
| 3744 XBUFFER (w->buffer)->buffer_local_face_property; | |
| 3745 | |
| 3746 if (new_buffer_local_face_property | |
| 3747 || new_buffer_local_face_property != old_buffer_local_face_property) | |
| 3748 MARK_WINDOW_FACES_CHANGED (w); | |
| 3749 } | |
| 428 | 3750 recompute_all_cached_specifiers_in_window (w); |
| 3751 if (EQ (window, Fselected_window (Qnil))) | |
| 3752 { | |
| 440 | 3753 if (NILP (norecord)) |
| 3754 Frecord_buffer (buffer); | |
| 3755 | |
| 428 | 3756 Fset_buffer (buffer); |
| 3757 } | |
|
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Import buffer-display-count, buffer-display-time; thank you, Jeff Sparkes.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
3758 if (NILP (XBUFFER (buffer)->display_count)) |
|
5581
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Mechanically change INT to FIXNUM in our sources.
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diff
changeset
|
3759 XBUFFER (buffer)->display_count = make_fixnum (1); |
|
5214
0b4d355771bd
Import buffer-display-count, buffer-display-time; thank you, Jeff Sparkes.
Aidan Kehoe <kehoea@parhasard.net>
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5191
diff
changeset
|
3760 else |
|
5581
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Mechanically change INT to FIXNUM in our sources.
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|
3761 XBUFFER (buffer)->display_count = make_fixnum (1 + XFIXNUM (XBUFFER (buffer)->display_count)); |
|
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Aidan Kehoe <kehoea@parhasard.net>
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5191
diff
changeset
|
3762 XBUFFER (buffer)->display_time = Fcurrent_time(); |
| 428 | 3763 return Qnil; |
| 3764 } | |
| 3765 | |
| 3766 DEFUN ("select-window", Fselect_window, 1, 2, 0, /* | |
| 3767 Select WINDOW. Most editing will apply to WINDOW's buffer. | |
| 3768 The main editor command loop selects the buffer of the selected window | |
| 3769 before each command. | |
| 3770 | |
| 442 | 3771 With non-nil optional argument NORECORD, do not modify the |
| 428 | 3772 global or per-frame buffer ordering. |
| 3773 */ | |
| 3774 (window, norecord)) | |
| 3775 { | |
| 3776 struct window *w; | |
| 3777 Lisp_Object old_selected_window = Fselected_window (Qnil); | |
| 3778 | |
| 3779 CHECK_LIVE_WINDOW (window); | |
| 3780 w = XWINDOW (window); | |
| 3781 | |
| 3782 /* we have already caught dead-window errors */ | |
| 3783 if (!NILP (w->hchild) || !NILP (w->vchild)) | |
| 563 | 3784 invalid_operation ("Trying to select non-leaf window", Qunbound); |
| 428 | 3785 |
|
5581
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Mechanically change INT to FIXNUM in our sources.
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diff
changeset
|
3786 w->use_time = make_fixnum (++window_select_count); |
| 442 | 3787 |
| 428 | 3788 if (EQ (window, old_selected_window)) |
| 3789 return window; | |
| 3790 | |
| 3791 /* deselect the old window, if it exists (it might not exist if | |
| 3792 the selected device has no frames, which occurs at startup) */ | |
| 3793 if (!NILP (old_selected_window)) | |
| 3794 { | |
| 3795 struct window *ow = XWINDOW (old_selected_window); | |
| 3796 | |
| 3797 Fset_marker (ow->pointm[CURRENT_DISP], | |
|
5581
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Mechanically change INT to FIXNUM in our sources.
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5474
diff
changeset
|
3798 make_fixnum (BUF_PT (XBUFFER (ow->buffer))), |
| 428 | 3799 ow->buffer); |
| 3800 | |
| 3801 MARK_WINDOWS_CHANGED (ow); | |
| 3802 } | |
| 3803 | |
| 3804 /* now select the window's frame */ | |
| 3805 set_frame_selected_window (XFRAME (WINDOW_FRAME (w)), window); | |
| 3806 | |
| 3807 select_frame_1 (WINDOW_FRAME (w)); | |
| 3808 | |
| 3809 /* also select the window's buffer */ | |
| 3810 if (NILP (norecord)) | |
| 3811 Frecord_buffer (w->buffer); | |
| 3812 Fset_buffer (w->buffer); | |
| 3813 | |
| 3814 /* Go to the point recorded in the window. | |
| 3815 This is important when the buffer is in more | |
| 3816 than one window. It also matters when | |
| 3817 redisplay_window has altered point after scrolling, | |
| 3818 because it makes the change only in the window. */ | |
| 3819 { | |
| 665 | 3820 Charbpos new_point = marker_position (w->pointm[CURRENT_DISP]); |
| 428 | 3821 if (new_point < BUF_BEGV (current_buffer)) |
| 3822 new_point = BUF_BEGV (current_buffer); | |
| 3823 else if (new_point > BUF_ZV (current_buffer)) | |
| 3824 new_point = BUF_ZV (current_buffer); | |
| 3825 | |
| 3826 BUF_SET_PT (current_buffer, new_point); | |
| 3827 } | |
| 3828 | |
| 3829 MARK_WINDOWS_CHANGED (w); | |
| 3830 | |
| 3831 return window; | |
| 3832 } | |
| 3833 | |
| 3834 Lisp_Object | |
| 3835 display_buffer (Lisp_Object buffer, Lisp_Object not_this_window_p, | |
| 3836 Lisp_Object override_frame) | |
| 3837 { | |
| 3838 return call3 (Qdisplay_buffer, buffer, not_this_window_p, override_frame); | |
| 3839 } | |
| 3840 | |
| 3841 void | |
| 3842 temp_output_buffer_show (Lisp_Object buf, Lisp_Object same_frame) | |
| 3843 { | |
| 3844 /* This function can GC */ | |
| 3845 Lisp_Object window; | |
| 3846 struct window *w; | |
| 3847 struct buffer *b = XBUFFER (buf); | |
| 3848 | |
| 3849 BUF_SAVE_MODIFF (XBUFFER (buf)) = BUF_MODIFF (b); | |
| 3850 widen_buffer (b, 0); | |
| 3851 BUF_SET_PT (b, BUF_BEG (b)); | |
| 3852 | |
| 3853 if (!NILP (Vtemp_buffer_show_function)) | |
| 3854 call1 (Vtemp_buffer_show_function, buf); | |
| 3855 else | |
| 3856 { | |
| 3857 window = display_buffer (buf, Qnil, same_frame); | |
| 3858 | |
| 3859 if (!EQ (XWINDOW (window)->frame, Fselected_frame (Qnil))) | |
| 3860 Fmake_frame_visible (WINDOW_FRAME (XWINDOW (window))); | |
| 3861 | |
| 3862 Vminibuffer_scroll_window = window; | |
| 3863 w = XWINDOW (window); | |
| 3864 w->hscroll = 0; | |
| 3865 w->modeline_hscroll = 0; | |
|
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diff
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|
3866 set_marker_restricted (w->start[CURRENT_DISP], make_fixnum (1), buf); |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
3867 set_marker_restricted (w->pointm[CURRENT_DISP], make_fixnum (1), buf); |
|
56144c8593a8
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5474
diff
changeset
|
3868 set_marker_restricted (w->sb_point, make_fixnum (1), buf); |
| 428 | 3869 } |
| 3870 } | |
| 3871 | |
| 3872 static void | |
| 3873 make_dummy_parent (Lisp_Object window) | |
| 3874 { | |
| 3875 struct window *o = XWINDOW (window); | |
|
5127
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5126
diff
changeset
|
3876 Lisp_Object obj = ALLOC_NORMAL_LISP_OBJECT (window); |
|
5117
3742ea8250b5
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diff
changeset
|
3877 struct window *p = XWINDOW (obj); |
|
3742ea8250b5
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diff
changeset
|
3878 |
|
5127
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5126
diff
changeset
|
3879 copy_lisp_object (obj, window); |
| 428 | 3880 |
| 3881 /* Don't copy the pointers to the line start cache or the face | |
| 3882 instances. */ | |
| 3883 p->line_start_cache = Dynarr_new (line_start_cache); | |
| 3092 | 3884 #ifdef NEW_GC |
| 3885 p->face_cachels = Dynarr_lisp_new (face_cachel, | |
| 3886 &lrecord_face_cachel_dynarr, | |
| 3887 &lrecord_face_cachel); | |
| 3888 p->glyph_cachels = Dynarr_lisp_new (glyph_cachel, | |
| 3889 &lrecord_glyph_cachel_dynarr, | |
| 3890 &lrecord_glyph_cachel); | |
| 3891 #else /* not NEW_GC */ | |
| 428 | 3892 p->face_cachels = Dynarr_new (face_cachel); |
| 3893 p->glyph_cachels = Dynarr_new (glyph_cachel); | |
| 3092 | 3894 #endif /* not NEW_GC */ |
| 442 | 3895 p->subwindow_instance_cache = |
| 450 | 3896 make_image_instance_cache_hash_table (); |
| 428 | 3897 |
| 3898 /* Put new into window structure in place of window */ | |
|
5117
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diff
changeset
|
3899 replace_window (window, obj); |
| 428 | 3900 |
| 3901 o->next = Qnil; | |
| 3902 o->prev = Qnil; | |
| 3903 o->vchild = Qnil; | |
| 3904 o->hchild = Qnil; | |
|
5117
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changeset
|
3905 o->parent = obj; |
| 428 | 3906 |
| 3907 p->start[CURRENT_DISP] = Qnil; | |
| 3908 p->start[DESIRED_DISP] = Qnil; | |
| 3909 p->start[CMOTION_DISP] = Qnil; | |
| 3910 p->pointm[CURRENT_DISP] = Qnil; | |
| 3911 p->pointm[DESIRED_DISP] = Qnil; | |
| 3912 p->pointm[CMOTION_DISP] = Qnil; | |
| 3913 p->sb_point = Qnil; | |
| 844 | 3914 p->saved_point_cache = make_saved_buffer_point_cache (); |
| 3915 p->saved_last_window_start_cache = make_saved_buffer_point_cache (); | |
| 428 | 3916 p->buffer = Qnil; |
| 3917 } | |
| 3918 | |
| 3919 DEFUN ("split-window", Fsplit_window, 0, 3, "", /* | |
| 3920 Split WINDOW, putting SIZE lines in the first of the pair. | |
| 444 | 3921 WINDOW defaults to the selected one and SIZE to half its size. |
| 707 | 3922 If optional third arg HORFLAG is non-nil, split side by side and put |
| 3923 SIZE columns in the first of the pair. The newly created window is | |
| 3924 returned. | |
| 428 | 3925 */ |
| 444 | 3926 (window, size, horflag)) |
| 428 | 3927 { |
| 3025 | 3928 Lisp_Object new_; |
| 428 | 3929 struct window *o, *p; |
| 3930 struct frame *f; | |
| 444 | 3931 int csize; |
| 428 | 3932 int psize; |
| 3933 | |
| 3934 if (NILP (window)) | |
| 3935 window = Fselected_window (Qnil); | |
| 3936 else | |
| 3937 CHECK_LIVE_WINDOW (window); | |
| 3938 | |
| 3939 o = XWINDOW (window); | |
| 3940 f = XFRAME (WINDOW_FRAME (o)); | |
| 3941 | |
| 444 | 3942 if (NILP (size)) |
| 428 | 3943 { |
| 3944 if (!NILP (horflag)) | |
| 3945 /* In the new scheme, we are symmetric with respect to separators | |
| 3946 so there is no need to do weird things here. */ | |
| 3947 { | |
| 956 | 3948 psize = (WINDOW_WIDTH (o) + window_divider_width (o)) >> 1; |
| 444 | 3949 csize = window_pixel_width_to_char_width (o, psize, 0); |
| 428 | 3950 } |
| 3951 else | |
| 3952 { | |
| 3953 psize = WINDOW_HEIGHT (o) >> 1; | |
| 444 | 3954 csize = window_pixel_height_to_char_height (o, psize, 1); |
| 428 | 3955 } |
| 3956 } | |
| 3957 else | |
| 3958 { | |
|
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diff
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|
3959 CHECK_FIXNUM (size); |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
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diff
changeset
|
3960 csize = XFIXNUM (size); |
| 428 | 3961 if (!NILP (horflag)) |
| 444 | 3962 psize = window_char_width_to_pixel_width (o, csize, 0); |
| 428 | 3963 else |
| 444 | 3964 psize = window_char_height_to_pixel_height (o, csize, 1); |
| 428 | 3965 } |
| 3966 | |
| 3967 if (MINI_WINDOW_P (o)) | |
| 563 | 3968 invalid_operation ("Attempt to split minibuffer window", Qunbound); |
| 428 | 3969 else if (FRAME_NO_SPLIT_P (XFRAME (WINDOW_FRAME (o)))) |
| 563 | 3970 invalid_operation ("Attempt to split unsplittable frame", Qunbound); |
| 428 | 3971 |
| 3972 check_min_window_sizes (); | |
| 3973 | |
| 3974 if (NILP (horflag)) | |
| 3975 { | |
| 444 | 3976 if (csize < window_min_height) |
|
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|
3977 signal_error (Qinvalid_operation, "Window height too small (after splitting)", make_fixnum (csize)); |
| 444 | 3978 if (csize + window_min_height > window_char_height (o, 1)) |
| 563 | 3979 signal_error (Qinvalid_operation, "Window height too small (after splitting)", |
|
5581
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|
3980 make_fixnum (window_char_height (o, 1) - csize)); |
| 428 | 3981 if (NILP (o->parent) |
| 3982 || NILP (XWINDOW (o->parent)->vchild)) | |
| 3983 { | |
| 3984 make_dummy_parent (window); | |
| 448 | 3985 #if 0 |
| 3986 /* #### I can't understand why you have to reset face | |
| 3987 cachels here. This can cause crash so let's disable it | |
| 3988 and see the difference. See redisplay-tests.el --yh */ | |
| 428 | 3989 reset_face_cachels (XWINDOW (window)); |
| 448 | 3990 #endif |
| 3025 | 3991 new_ = o->parent; |
| 3992 XWINDOW (new_)->vchild = window; | |
| 428 | 3993 XFRAME (o->frame)->mirror_dirty = 1; |
| 3994 } | |
| 3995 } | |
| 3996 else | |
| 3997 { | |
| 444 | 3998 if (csize < window_min_width) |
|
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|
3999 signal_error (Qinvalid_operation, "Window width too small (after splitting)", make_fixnum (csize)); |
| 444 | 4000 if (csize + window_min_width > window_char_width (o, 0)) |
| 563 | 4001 signal_error (Qinvalid_operation, "Window width too small (after splitting)", |
|
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|
4002 make_fixnum (window_char_width (o, 0) - csize)); |
| 428 | 4003 if (NILP (o->parent) |
| 4004 || NILP (XWINDOW (o->parent)->hchild)) | |
| 4005 { | |
| 4006 make_dummy_parent (window); | |
| 448 | 4007 #if 0 |
| 4008 /* #### See above. */ | |
| 428 | 4009 reset_face_cachels (XWINDOW (window)); |
| 448 | 4010 #endif |
| 3025 | 4011 new_ = o->parent; |
| 4012 XWINDOW (new_)->hchild = window; | |
| 428 | 4013 XFRAME (o->frame)->mirror_dirty = 1; |
| 4014 } | |
| 4015 } | |
| 4016 | |
| 4017 /* Now we know that window's parent is a vertical combination | |
| 4018 if we are dividing vertically, or a horizontal combination | |
| 4019 if we are making side-by-side windows */ | |
| 4020 | |
| 4021 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f); | |
| 3025 | 4022 new_ = allocate_window (); |
| 4023 p = XWINDOW (new_); | |
| 428 | 4024 |
| 4025 p->frame = o->frame; | |
| 4026 p->next = o->next; | |
| 4027 if (!NILP (p->next)) | |
| 3025 | 4028 XWINDOW (p->next)->prev = new_; |
| 428 | 4029 p->prev = window; |
| 3025 | 4030 o->next = new_; |
| 428 | 4031 p->parent = o->parent; |
| 4032 p->buffer = Qt; | |
| 4033 | |
| 4034 reset_face_cachels (p); | |
| 4035 reset_glyph_cachels (p); | |
| 4036 | |
| 4037 | |
| 4038 /* Apportion the available frame space among the two new windows */ | |
| 4039 | |
| 4040 if (!NILP (horflag)) | |
| 4041 { | |
| 4042 WINDOW_HEIGHT (p) = WINDOW_HEIGHT (o); | |
| 4043 WINDOW_TOP (p) = WINDOW_TOP (o); | |
| 4044 WINDOW_WIDTH (p) = WINDOW_WIDTH (o) - psize; | |
| 4045 WINDOW_WIDTH (o) = psize; | |
| 4046 WINDOW_LEFT (p) = WINDOW_LEFT (o) + psize; | |
| 4047 } | |
| 4048 else | |
| 4049 { | |
| 4050 WINDOW_LEFT (p) = WINDOW_LEFT (o); | |
| 4051 WINDOW_WIDTH (p) = WINDOW_WIDTH (o); | |
| 4052 WINDOW_HEIGHT (p) = WINDOW_HEIGHT (o) - psize; | |
| 4053 WINDOW_HEIGHT (o) = psize; | |
| 4054 WINDOW_TOP (p) = WINDOW_TOP (o) + psize; | |
| 4055 } | |
| 4056 | |
| 4057 XFRAME (p->frame)->mirror_dirty = 1; | |
| 853 | 4058 |
| 3025 | 4059 note_object_created (new_); |
| 853 | 4060 |
| 428 | 4061 /* do this last (after the window is completely initialized and |
| 4062 the mirror-dirty flag is set) so that specifier recomputation | |
| 4063 caused as a result of this will work properly and not abort. */ | |
| 3025 | 4064 Fset_window_buffer (new_, o->buffer, Qt); |
| 4065 return new_; | |
| 428 | 4066 } |
| 4067 | |
| 4068 | |
| 4069 DEFUN ("enlarge-window", Fenlarge_window, 1, 3, "_p", /* | |
| 444 | 4070 Make the selected window COUNT lines taller. |
| 4071 From program, optional second arg HORIZONTALP non-nil means grow | |
| 4072 sideways COUNT columns, and optional third arg WINDOW specifies the | |
| 4073 window to change instead of the selected window. | |
| 428 | 4074 */ |
| 444 | 4075 (count, horizontalp, window)) |
| 4076 { | |
|
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diff
changeset
|
4077 CHECK_FIXNUM (count); |
|
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|
4078 change_window_height (window, XFIXNUM (count), horizontalp, /* inpixels */ 0); |
| 428 | 4079 return Qnil; |
| 4080 } | |
| 4081 | |
| 4082 DEFUN ("enlarge-window-pixels", Fenlarge_window_pixels, 1, 3, "_p", /* | |
| 444 | 4083 Make the selected window COUNT pixels taller. |
| 4084 From program, optional second arg HORIZONTALP non-nil means grow | |
| 4085 sideways COUNT pixels, and optional third arg WINDOW specifies the | |
| 4086 window to change instead of the selected window. | |
| 428 | 4087 */ |
| 444 | 4088 (count, horizontalp, window)) |
| 4089 { | |
|
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diff
changeset
|
4090 CHECK_FIXNUM (count); |
|
56144c8593a8
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diff
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|
4091 change_window_height (window, XFIXNUM (count), horizontalp, /* inpixels */ 1); |
| 428 | 4092 return Qnil; |
| 4093 } | |
| 4094 | |
| 4095 DEFUN ("shrink-window", Fshrink_window, 1, 3, "_p", /* | |
| 444 | 4096 Make the selected window COUNT lines shorter. |
| 4097 From program, optional second arg HORIZONTALP non-nil means shrink | |
| 4098 sideways COUNT columns, and optional third arg WINDOW specifies the | |
| 4099 window to change instead of the selected window. | |
| 428 | 4100 */ |
| 444 | 4101 (count, horizontalp, window)) |
| 4102 { | |
|
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diff
changeset
|
4103 CHECK_FIXNUM (count); |
|
56144c8593a8
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diff
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|
4104 change_window_height (window, -XFIXNUM (count), horizontalp, /* inpixels */ 0); |
| 428 | 4105 return Qnil; |
| 4106 } | |
| 4107 | |
| 4108 DEFUN ("shrink-window-pixels", Fshrink_window_pixels, 1, 3, "_p", /* | |
| 444 | 4109 Make the selected window COUNT pixels smaller. |
| 4110 From program, optional second arg HORIZONTALP non-nil means shrink | |
| 4111 sideways COUNT pixels, and optional third arg WINDOW specifies the | |
| 4112 window to change instead of the selected window. | |
| 428 | 4113 */ |
| 444 | 4114 (count, horizontalp, window)) |
| 4115 { | |
|
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4116 CHECK_FIXNUM (count); |
|
56144c8593a8
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Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4117 change_window_height (window, -XFIXNUM (count), horizontalp, /* inpixels */ 1); |
| 428 | 4118 return Qnil; |
| 4119 } | |
| 4120 | |
| 4121 static int | |
| 4122 window_pixel_height_to_char_height (struct window *w, int pixel_height, | |
| 4123 int include_gutters_p) | |
| 4124 { | |
| 4125 int avail_height; | |
| 4126 int defheight, defwidth; | |
| 3687 | 4127 int char_height = 0; |
| 793 | 4128 Lisp_Object window = wrap_window (w); |
| 4129 | |
| 428 | 4130 |
| 4131 avail_height = (pixel_height - | |
| 4132 (include_gutters_p ? 0 : | |
| 442 | 4133 window_top_window_gutter_height (w) + |
| 4134 window_bottom_window_gutter_height (w))); | |
| 428 | 4135 |
|
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5043
diff
changeset
|
4136 default_face_width_and_height (window, &defwidth, &defheight); |
| 428 | 4137 |
| 3687 | 4138 if (defheight) |
| 4139 char_height = avail_height / defheight; | |
| 428 | 4140 |
| 4141 /* It's the calling function's responsibility to check these values | |
| 4142 and make sure they're not out of range. | |
| 4143 | |
| 4144 #### We need to go through the calling functions and actually | |
| 4145 do this. */ | |
| 4146 return max (0, char_height); | |
| 4147 } | |
| 4148 | |
| 4149 static int | |
| 4150 window_char_height_to_pixel_height (struct window *w, int char_height, | |
| 4151 int include_gutters_p) | |
| 4152 { | |
| 4153 int avail_height; | |
| 4154 int defheight, defwidth; | |
| 4155 int pixel_height; | |
| 4156 | |
| 793 | 4157 Lisp_Object window = wrap_window (w); |
| 4158 | |
| 428 | 4159 |
|
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5043
diff
changeset
|
4160 default_face_width_and_height (window, &defwidth, &defheight); |
| 428 | 4161 |
| 4162 avail_height = char_height * defheight; | |
| 4163 pixel_height = (avail_height + | |
| 4164 (include_gutters_p ? 0 : | |
| 442 | 4165 window_top_window_gutter_height (w) + |
| 4166 window_bottom_window_gutter_height (w))); | |
| 428 | 4167 |
| 4168 /* It's the calling function's responsibility to check these values | |
| 4169 and make sure they're not out of range. | |
| 4170 | |
| 4171 #### We need to go through the calling functions and actually | |
| 4172 do this. */ | |
| 4173 return max (0, pixel_height); | |
| 4174 } | |
| 4175 | |
| 4176 /* Return number of default lines of text can fit in the window W. | |
| 4177 If INCLUDE_GUTTERS_P is 1, include "gutter" space (modeline plus | |
| 4178 horizontal scrollbar) in the space that is used for the calculation. | |
| 442 | 4179 This doesn't include space used by the frame gutters. |
| 428 | 4180 */ |
| 4181 int | |
| 4182 window_char_height (struct window *w, int include_gutters_p) | |
| 4183 { | |
| 442 | 4184 return window_pixel_height_to_char_height (w, window_pixel_height (w), |
| 428 | 4185 include_gutters_p); |
| 4186 } | |
| 4187 | |
| 4188 /* | |
| 4189 * Return number of lines currently displayed in window w. If | |
| 4190 * end-of-buffer is displayed then the area below end-of-buffer is assume | |
| 4191 * to be blank lines of default height. | |
| 4192 * Does not include the modeline. | |
| 4193 */ | |
| 4194 int | |
| 4195 window_displayed_height (struct window *w) | |
| 4196 { | |
| 4197 struct buffer *b = XBUFFER (w->buffer); | |
| 4198 display_line_dynarr *dla = window_display_lines (w, CURRENT_DISP); | |
| 4199 int num_lines; | |
| 4200 Charcount end_pos = (BUF_Z (b) - w->window_end_pos[CURRENT_DISP] > BUF_ZV (b) | |
| 4201 ? -1 | |
| 4202 : w->window_end_pos[CURRENT_DISP]); | |
| 4203 | |
| 4204 if (!Dynarr_length (dla)) | |
| 4205 return window_char_height (w, 0); | |
| 4206 | |
| 4207 num_lines = Dynarr_length (dla); | |
| 4208 | |
| 4209 /* #### Document and assert somewhere that w->window_end_pos == -1 | |
| 4210 indicates that end-of-buffer is being displayed. */ | |
| 4211 if (end_pos == -1) | |
| 4212 { | |
| 4967 | 4213 struct display_line *dl = Dynarr_begin (dla); |
| 428 | 4214 int ypos1 = dl->ypos + dl->descent; |
| 4215 int ypos2 = WINDOW_TEXT_BOTTOM (w); | |
| 4216 Lisp_Object window; | |
| 4217 int defheight, defwidth; | |
| 4218 | |
| 793 | 4219 window = wrap_window (w); |
| 428 | 4220 |
| 4221 if (dl->modeline) | |
| 4222 { | |
| 4223 num_lines--; | |
| 4224 | |
| 4225 if (Dynarr_length (dla) == 1) | |
| 4226 ypos1 = WINDOW_TEXT_TOP (w); | |
| 4227 else | |
| 4228 { | |
| 4229 dl = Dynarr_atp (dla, Dynarr_length (dla) - 1); | |
| 4230 /* If this line is clipped then we know that there is no | |
| 4231 blank room between eob and the modeline. If we are | |
| 4232 scrolling on clipped lines just know off the clipped | |
| 4233 line and return .*/ | |
| 4234 if (scroll_on_clipped_lines && dl->clip) | |
| 4235 return num_lines - 1; | |
| 4236 ypos1 = dl->ypos + dl->descent - dl->clip; | |
| 4237 } | |
| 4238 } | |
| 4239 | |
|
5047
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Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
4240 default_face_width_and_height (window, &defwidth, &defheight); |
| 428 | 4241 /* #### This probably needs to know about the clipping area once a |
| 4242 final definition is decided on. */ | |
| 3707 | 4243 if (defheight) |
| 4244 num_lines += ((ypos2 - ypos1) / defheight); | |
| 428 | 4245 } |
| 4246 else | |
| 4247 { | |
| 4967 | 4248 if (num_lines > 1 && Dynarr_begin (dla)->modeline) |
| 428 | 4249 num_lines--; |
| 4250 | |
| 4251 if (scroll_on_clipped_lines | |
| 4252 && Dynarr_atp (dla, Dynarr_length (dla) - 1)->clip) | |
| 4253 num_lines--; | |
| 4254 } | |
| 4255 | |
| 4256 return num_lines; | |
| 4257 } | |
| 4258 | |
| 4259 static int | |
| 4260 window_pixel_width (Lisp_Object window) | |
| 4261 { | |
| 4262 return WINDOW_WIDTH (XWINDOW (window)); | |
| 4263 } | |
| 4264 | |
| 442 | 4265 /* Calculate the pixel of a window, optionally including margin space |
| 4266 but no vertical gutters. */ | |
| 428 | 4267 static int |
| 4268 window_pixel_width_to_char_width (struct window *w, int pixel_width, | |
| 4269 int include_margins_p) | |
| 4270 { | |
| 4271 int avail_width; | |
| 3676 | 4272 int char_width = 0; |
| 428 | 4273 int defheight, defwidth; |
| 793 | 4274 Lisp_Object window = wrap_window (w); |
| 4275 | |
| 428 | 4276 |
| 4277 avail_width = (pixel_width - | |
| 4278 window_left_gutter_width (w, 0) - | |
| 4279 window_right_gutter_width (w, 0) - | |
| 4280 (include_margins_p ? 0 : window_left_margin_width (w)) - | |
| 4281 (include_margins_p ? 0 : window_right_margin_width (w))); | |
| 4282 | |
|
5047
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Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
4283 default_face_width_and_height (window, &defwidth, &defheight); |
| 428 | 4284 |
| 3676 | 4285 if (defwidth) |
| 4286 char_width = (avail_width / defwidth); | |
| 428 | 4287 |
| 4288 /* It's the calling function's responsibility to check these values | |
| 4289 and make sure they're not out of range. | |
| 4290 | |
| 4291 #### We need to go through the calling functions and actually | |
| 4292 do this. */ | |
| 4293 return max (0, char_width); | |
| 4294 } | |
| 4295 | |
| 4296 static int | |
| 4297 window_char_width_to_pixel_width (struct window *w, int char_width, | |
| 4298 int include_margins_p) | |
| 4299 { | |
| 4300 int avail_width; | |
| 4301 int pixel_width; | |
| 4302 int defheight, defwidth; | |
| 793 | 4303 Lisp_Object window = wrap_window (w); |
| 4304 | |
| 428 | 4305 |
|
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
|
4306 default_face_width_and_height (window, &defwidth, &defheight); |
| 428 | 4307 |
| 4308 avail_width = char_width * defwidth; | |
| 4309 pixel_width = (avail_width + | |
| 442 | 4310 window_left_window_gutter_width (w, 0) + |
| 4311 window_right_window_gutter_width (w, 0) + | |
| 428 | 4312 (include_margins_p ? 0 : window_left_margin_width (w)) + |
| 4313 (include_margins_p ? 0 : window_right_margin_width (w))); | |
| 4314 | |
| 4315 /* It's the calling function's responsibility to check these values | |
| 4316 and make sure they're not out of range. | |
| 4317 | |
| 4318 #### We need to go through the calling functions and actually | |
| 4319 do this. */ | |
| 4320 return max (0, pixel_width); | |
| 4321 } | |
| 4322 | |
| 4323 /* This returns the usable space which doesn't include space needed by | |
| 4324 scrollbars or divider lines. */ | |
| 4325 int | |
| 4326 window_char_width (struct window *w, int include_margins_p) | |
| 4327 { | |
| 4328 return window_pixel_width_to_char_width (w, WINDOW_WIDTH (w), | |
| 4329 include_margins_p); | |
| 4330 } | |
| 4331 | |
| 4332 #define MINSIZE(w) \ | |
| 4333 (widthflag \ | |
| 4334 ? window_min_width * defwidth \ | |
| 4335 : (defheight * (MINI_WINDOW_P (XWINDOW (w)) ? 1 : window_min_height))) | |
| 4336 | |
| 4337 #define CURBEG(w) \ | |
| 4338 *(widthflag ? (int *) &WINDOW_LEFT (w) : (int *) &WINDOW_TOP (w)) | |
| 4339 | |
| 4340 #define CURSIZE(w) \ | |
| 4341 *(widthflag ? (int *) &WINDOW_WIDTH (w) : (int *) &WINDOW_HEIGHT (w)) | |
| 4342 | |
| 4343 #define CURCHARSIZE(w) \ | |
| 4344 (widthflag ? window_char_width (w, 0) : window_char_height (w, 1)) | |
| 4345 | |
| 4346 #define MINCHARSIZE(window) \ | |
| 4347 (widthflag ? window_min_width : MINI_WINDOW_P (XWINDOW (window)) \ | |
| 4348 ? 1 : window_min_height) | |
| 4349 | |
| 442 | 4350 static int |
| 4351 window_pixheight (Lisp_Object w) | |
| 4352 { | |
| 4353 return window_pixel_height (XWINDOW (w)); | |
| 4354 } | |
| 4355 | |
| 428 | 4356 /* Unlike set_window_pixheight, this function |
| 4357 also changes the heights of the siblings so as to | |
| 4358 keep everything consistent. */ | |
| 4359 | |
| 4360 static void | |
| 444 | 4361 change_window_height (Lisp_Object window, int delta, Lisp_Object horizontalp, |
| 428 | 4362 int inpixels) |
| 4363 { | |
| 444 | 4364 struct window *win = decode_window (window); |
| 4365 int widthflag = !NILP (horizontalp); | |
| 428 | 4366 Lisp_Object parent; |
| 4367 struct window *w; | |
| 4368 struct frame *f; | |
| 4369 int *sizep; | |
| 4370 int (*sizefun) (Lisp_Object) = (widthflag | |
| 4371 ? window_pixel_width | |
| 442 | 4372 : window_pixheight); |
| 428 | 4373 void (*setsizefun) (Lisp_Object, int, int) = (widthflag |
| 4374 ? set_window_pixwidth | |
| 4375 : set_window_pixheight); | |
| 4376 int dim; | |
| 4377 int defheight, defwidth; | |
| 4378 | |
| 4379 if (delta == 0) | |
| 4380 return; | |
| 4381 | |
| 4382 check_min_window_sizes (); | |
| 4383 | |
| 793 | 4384 window = wrap_window (win); |
| 428 | 4385 f = XFRAME (win->frame); |
| 4386 if (EQ (window, FRAME_ROOT_WINDOW (f))) | |
| 563 | 4387 invalid_operation ("Won't change only window", Qunbound); |
| 428 | 4388 |
|
5047
07dcc7000bbf
put width before height consistently, fix a real bug found in the process
Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
4389 default_face_width_and_height (window, &defwidth, &defheight); |
| 428 | 4390 |
| 4391 while (1) | |
| 4392 { | |
| 4393 w = XWINDOW (window); | |
| 4394 parent = w->parent; | |
| 4395 if (NILP (parent)) | |
| 4396 { | |
| 4397 if (widthflag) | |
| 3078 | 4398 { |
| 4399 int new_pixsize; | |
| 4400 sizep = &CURSIZE (w); | |
| 3466 | 4401 dim = CURCHARSIZE (w); |
| 3078 | 4402 new_pixsize = inpixels?(*sizep + delta):(dim+delta); |
| 4403 set_window_pixsize (window, new_pixsize, 0, 0); | |
| 4404 return; | |
| 4405 } | |
| 428 | 4406 break; |
| 4407 } | |
| 4408 if (widthflag | |
| 4409 ? !NILP (XWINDOW (parent)->hchild) | |
| 4410 : !NILP (XWINDOW (parent)->vchild)) | |
| 4411 break; | |
| 4412 window = parent; | |
| 4413 } | |
| 4414 | |
| 4415 sizep = &CURSIZE (w); | |
| 4416 dim = CURCHARSIZE (w); | |
| 4417 | |
| 4418 if ((inpixels && (*sizep + delta) < MINSIZE (window)) || | |
| 4419 (!inpixels && (dim + delta) < MINCHARSIZE (window))) | |
| 4420 { | |
| 4421 if (MINI_WINDOW_P (XWINDOW (window))) | |
| 4422 return; | |
| 4423 else if (!NILP (parent)) | |
| 4424 { | |
| 4425 Fdelete_window (window, Qnil); | |
| 4426 return; | |
| 4427 } | |
| 4428 } | |
| 4429 | |
| 4430 if (!inpixels) | |
| 4431 delta *= (widthflag ? defwidth : defheight); | |
| 4432 | |
| 4433 { | |
| 4434 int maxdelta; | |
| 4435 | |
| 4436 maxdelta = ((!NILP (parent)) | |
| 4437 ? (*sizefun) (parent) - *sizep | |
| 4438 : ((!NILP (w->next)) | |
| 4439 ? (*sizefun) (w->next) - MINSIZE (w->next) | |
| 4440 : ((!NILP (w->prev)) | |
| 4441 ? (*sizefun) (w->prev) - MINSIZE (w->prev) | |
| 4442 /* This is a frame with only one window, | |
| 4443 a minibuffer-only or a minibufferless frame. */ | |
| 4444 : (delta = 0)))); | |
| 4445 | |
| 4446 if (delta > maxdelta) | |
| 4447 /* This case traps trying to make the minibuffer | |
| 4448 the full frame, or make the only window aside from the | |
| 4449 minibuffer the full frame. */ | |
| 4450 delta = maxdelta; | |
| 4451 | |
| 4452 if (delta == 0) | |
| 4453 return; | |
| 4454 | |
| 4455 #if 0 /* FSFmacs */ | |
| 4456 /* #### Chuck: is this correct? */ | |
| 4457 if (*sizep + delta < MINSIZE (window)) | |
| 4458 { | |
| 4459 Fdelete_window (window); | |
| 4460 return; | |
| 4461 } | |
| 4462 #endif | |
| 4463 } | |
| 4464 | |
| 4465 if (!NILP (w->next) && | |
| 4466 (*sizefun) (w->next) - delta >= (int) MINSIZE (w->next)) | |
| 4467 { | |
| 4468 CURBEG (XWINDOW (w->next)) += delta; | |
| 4469 (*setsizefun) (w->next, (*sizefun) (w->next) - delta, 0); | |
| 4470 (*setsizefun) (window, *sizep + delta, 0); | |
| 4471 } | |
| 4472 else if (!NILP (w->prev) && | |
| 4473 (*sizefun) (w->prev) - delta >= (int) MINSIZE (w->prev)) | |
| 4474 { | |
| 4475 (*setsizefun) (w->prev, (*sizefun) (w->prev) - delta, 0); | |
| 4476 CURBEG (w) -= delta; | |
| 4477 (*setsizefun) (window, *sizep + delta, 0); | |
| 4478 } | |
| 4479 else | |
| 4480 { | |
| 4481 int delta1; | |
| 4482 int opht = (*sizefun) (parent); | |
| 4483 | |
| 4484 /* If trying to grow this window to or beyond size of the parent, | |
| 4485 make delta1 so big that, on shrinking back down, | |
| 4486 all the siblings end up with less than one line and are deleted. */ | |
| 4487 if (opht <= *sizep + delta) | |
| 4488 delta1 = opht * opht * 2; | |
| 4489 /* Otherwise, make delta1 just right so that if we add delta1 | |
| 4490 lines to this window and to the parent, and then shrink | |
| 4491 the parent back to its original size, the new proportional | |
| 4492 size of this window will increase by delta. */ | |
| 4493 else | |
| 4494 delta1 = (delta * opht * 100) / ((opht - *sizep - delta) * 100); | |
| 4495 | |
| 4496 /* Add delta1 lines or columns to this window, and to the parent, | |
| 4497 keeping things consistent while not affecting siblings. */ | |
| 4498 CURSIZE (XWINDOW (parent)) = opht + delta1; | |
| 4499 (*setsizefun) (window, *sizep + delta1, 0); | |
| 4500 | |
| 4501 /* Squeeze out delta1 lines or columns from our parent, | |
| 4502 shrinking this window and siblings proportionately. | |
| 4503 This brings parent back to correct size. | |
| 4504 Delta1 was calculated so this makes this window the desired size, | |
| 4505 taking it all out of the siblings. */ | |
| 4506 (*setsizefun) (parent, opht, 0); | |
| 4507 } | |
| 4508 | |
| 4509 SET_LAST_MODIFIED (w, 0); | |
| 4510 SET_LAST_FACECHANGE (w); | |
| 4511 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f); | |
| 4512 /* overkill maybe, but better to be correct */ | |
| 4513 MARK_FRAME_GUTTERS_CHANGED (f); | |
| 4514 } | |
| 4515 #undef MINSIZE | |
| 4516 #undef CURBEG | |
| 4517 #undef CURSIZE | |
| 4518 #undef CURCHARSIZE | |
| 4519 #undef MINCHARSIZE | |
| 4520 | |
| 4521 | |
| 4522 | |
| 444 | 4523 /* Scroll contents of window WINDOW up COUNT lines. |
| 4524 If COUNT < (top line height / average line height) then we just adjust | |
| 4525 the top clip. */ | |
| 428 | 4526 void |
| 444 | 4527 window_scroll (Lisp_Object window, Lisp_Object count, int direction, |
| 578 | 4528 Error_Behavior errb) |
| 428 | 4529 { |
| 4530 struct window *w = XWINDOW (window); | |
| 4531 struct buffer *b = XBUFFER (w->buffer); | |
| 4532 int selected = EQ (window, Fselected_window (Qnil)); | |
| 4533 int value = 0; | |
| 4534 Lisp_Object point, tem; | |
| 4535 display_line_dynarr *dla; | |
| 4536 int fheight, fwidth, modeline = 0; | |
| 4537 struct display_line* dl; | |
| 4538 | |
| 4539 if (selected) | |
|
5581
56144c8593a8
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Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4540 point = make_fixnum (BUF_PT (b)); |
| 428 | 4541 else |
| 4542 { | |
| 665 | 4543 Charbpos pos = marker_position (w->pointm[CURRENT_DISP]); |
| 428 | 4544 |
| 4545 if (pos < BUF_BEGV (b)) | |
| 4546 pos = BUF_BEGV (b); | |
| 4547 else if (pos > BUF_ZV (b)) | |
| 4548 pos = BUF_ZV (b); | |
| 4549 | |
|
5581
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4550 point = make_fixnum (pos); |
| 428 | 4551 } |
| 4552 | |
| 4553 /* Always set force_start so that redisplay_window will run | |
| 4554 the window-scroll-functions. */ | |
| 4555 w->force_start = 1; | |
| 4556 | |
| 4557 /* #### When the fuck does this happen? I'm so glad that history has | |
| 4558 completely documented the behavior of the scrolling functions under | |
| 4559 all circumstances. */ | |
| 1708 | 4560 tem = Fpos_visible_in_window_p (point, window, Qnil); |
| 428 | 4561 if (NILP (tem)) |
| 4562 { | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4563 Fvertical_motion (make_fixnum (-window_char_height (w, 0) / 2), |
| 428 | 4564 window, Qnil); |
| 4565 Fset_marker (w->start[CURRENT_DISP], point, w->buffer); | |
|
5581
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4566 w->start_at_line_beg = beginning_of_line_p (b, XFIXNUM (point)); |
| 428 | 4567 WINDOW_TEXT_TOP_CLIP (w) = 0; |
| 4568 MARK_WINDOWS_CHANGED (w); | |
| 4569 } | |
| 4570 | |
| 444 | 4571 if (!NILP (count)) |
| 428 | 4572 { |
| 444 | 4573 if (EQ (count, Qminus)) |
| 428 | 4574 direction *= -1; |
| 4575 else | |
| 4576 { | |
| 444 | 4577 count = Fprefix_numeric_value (count); |
|
5581
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4578 value = XFIXNUM (count) * direction; |
| 428 | 4579 |
| 4580 if (!value) | |
| 4581 return; /* someone just made a pointless call */ | |
| 4582 } | |
| 4583 } | |
| 4584 | |
| 4585 /* If the user didn't specify how far to scroll then we have to figure it | |
| 4586 out by ourselves. */ | |
| 444 | 4587 if (NILP (count) || EQ (count, Qminus)) |
| 428 | 4588 { |
| 4589 /* Going forwards is easy. If that is what we are doing then just | |
| 4590 set value and the section which handles the user specifying a | |
| 4591 positive value will work. */ | |
| 4592 if (direction == 1) | |
| 4593 { | |
| 4594 value = window_displayed_height (w) - next_screen_context_lines; | |
| 4595 value = (value < 1 ? 1 : value); | |
| 4596 } | |
| 4597 | |
| 4598 /* Going backwards is hard. We can't use the same loop used if the | |
| 4599 user specified a negative value because we care about | |
| 4600 next_screen_context_lines. In a variable height world you don't | |
| 4601 know how many lines above you can actually be displayed and still | |
| 4602 have the context lines appear. So we leave value set to 0 and add | |
| 4603 a separate section to deal with this. */ | |
| 4604 | |
| 4605 } | |
| 4606 | |
| 4607 if (direction == 1 && !value) | |
| 4608 { | |
| 4609 return; | |
| 4610 } | |
| 4611 | |
| 4612 /* Determine parameters to test for partial line scrolling with. */ | |
| 4613 dla = window_display_lines (w, CURRENT_DISP); | |
| 4614 | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4615 if (FIXNUMP (Vwindow_pixel_scroll_increment)) |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4616 fheight = XFIXNUM (Vwindow_pixel_scroll_increment); |
| 440 | 4617 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
|
4618 default_face_width_and_height (window, &fwidth, &fheight); |
| 438 | 4619 |
| 428 | 4620 if (Dynarr_length (dla) >= 1) |
| 4967 | 4621 modeline = Dynarr_begin (dla)->modeline; |
| 428 | 4622 |
| 4623 dl = Dynarr_atp (dla, modeline); | |
| 438 | 4624 |
| 428 | 4625 if (value > 0) |
| 4626 { | |
| 4627 /* Go for partial display line scrolling. This just means bumping | |
| 4628 the clip by a reasonable amount and redisplaying, everything else | |
| 4629 remains unchanged. */ | |
| 4630 if (!NILP (Vwindow_pixel_scroll_increment) | |
| 4631 && | |
| 4632 Dynarr_length (dla) >= (1 + modeline) | |
| 4633 && | |
| 458 | 4634 (dl->ascent - dl->top_clip) > fheight * value) |
| 428 | 4635 { |
| 4636 WINDOW_TEXT_TOP_CLIP (w) += value * fheight; | |
| 4637 MARK_WINDOWS_CHANGED (w); | |
| 4638 } | |
| 4639 else | |
| 4640 { | |
| 4641 int vtarget; | |
| 665 | 4642 Charbpos startp, old_start; |
| 438 | 4643 |
| 428 | 4644 if (WINDOW_TEXT_TOP_CLIP (w)) |
| 4645 { | |
| 4646 WINDOW_TEXT_TOP_CLIP (w) = 0; | |
| 4647 MARK_WINDOWS_CHANGED (w); | |
| 4648 } | |
| 4649 | |
| 4650 old_start = marker_position (w->start[CURRENT_DISP]); | |
| 4651 startp = vmotion (w, old_start, value, &vtarget); | |
| 438 | 4652 |
| 428 | 4653 if (vtarget < value && |
| 4654 (w->window_end_pos[CURRENT_DISP] == -1 | |
| 4655 || (BUF_Z (b) - w->window_end_pos[CURRENT_DISP] > BUF_ZV (b)))) | |
| 4656 { | |
| 563 | 4657 maybe_signal_error_1 (Qend_of_buffer, Qnil, Qwindow, errb); |
| 428 | 4658 return; |
| 4659 } | |
| 4660 else | |
| 4661 { | |
|
5581
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4662 set_marker_restricted (w->start[CURRENT_DISP], make_fixnum (startp), |
| 428 | 4663 w->buffer); |
| 4664 w->force_start = 1; | |
| 4665 w->start_at_line_beg = beginning_of_line_p (b, startp); | |
| 4666 MARK_WINDOWS_CHANGED (w); | |
| 438 | 4667 |
|
5581
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4668 if (!point_would_be_visible (w, startp, XFIXNUM (point), 0)) |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4669 Fset_window_point (wrap_window (w), make_fixnum (startp)); |
| 428 | 4670 } |
| 4671 } | |
| 4672 } | |
| 4673 else if (value < 0) | |
| 4674 { | |
| 4675 /* Go for partial display line scrolling. This just means bumping | |
| 4676 the clip by a reasonable amount and redisplaying, everything else | |
| 4677 remains unchanged. */ | |
| 4678 if (!NILP (Vwindow_pixel_scroll_increment) | |
| 4679 && | |
| 4680 Dynarr_length (dla) >= (1 + modeline) | |
| 4681 && | |
| 4682 (dl->ascent - dl->top_clip) - fheight * value < | |
| 4683 (dl->ascent + dl->descent - dl->clip) | |
| 4684 && | |
| 4685 WINDOW_TEXT_TOP_CLIP (w) + value * fheight > 0) | |
| 4686 { | |
| 4687 WINDOW_TEXT_TOP_CLIP (w) += value * fheight; | |
| 4688 MARK_WINDOWS_CHANGED (w); | |
| 4689 } | |
| 4690 else | |
| 4691 { | |
| 4692 int vtarget; | |
| 665 | 4693 Charbpos startp, old_start; |
| 438 | 4694 |
| 428 | 4695 if (WINDOW_TEXT_TOP_CLIP (w)) |
| 4696 { | |
| 4697 WINDOW_TEXT_TOP_CLIP (w) = 0; | |
| 4698 MARK_WINDOWS_CHANGED (w); | |
| 4699 } | |
| 438 | 4700 |
| 428 | 4701 old_start = marker_position (w->start[CURRENT_DISP]); |
| 4702 startp = vmotion (w, old_start, value, &vtarget); | |
| 438 | 4703 |
| 428 | 4704 if (vtarget > value |
| 4705 && marker_position (w->start[CURRENT_DISP]) == BUF_BEGV (b)) | |
| 4706 { | |
| 563 | 4707 maybe_signal_error_1 (Qbeginning_of_buffer, Qnil, Qwindow, errb); |
| 428 | 4708 return; |
| 4709 } | |
| 4710 else | |
| 4711 { | |
|
5581
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4712 set_marker_restricted (w->start[CURRENT_DISP], make_fixnum (startp), |
| 428 | 4713 w->buffer); |
| 4714 w->force_start = 1; | |
| 4715 w->start_at_line_beg = beginning_of_line_p (b, startp); | |
| 4716 MARK_WINDOWS_CHANGED (w); | |
| 438 | 4717 |
| 440 | 4718 /* #### Scroll back by less than a line. This code was |
| 4719 originally for scrolling over large pixmaps and it | |
| 4720 loses when a line being *exposed* at the top of the | |
| 4721 window is bigger than the current one. However, for | |
| 4722 pixel based scrolling in general we can guess that | |
| 4723 the line we are going to display is probably the same | |
| 4724 size as the one we are on. In that instance we can | |
| 4725 have a reasonable stab at a suitable top clip. Fixing | |
| 4726 this properly is hard (and probably slow) as we would | |
| 4727 have to call redisplay to figure out the exposed line | |
| 4728 size. */ | |
| 4729 if (!NILP (Vwindow_pixel_scroll_increment) | |
| 4730 && Dynarr_length (dla) >= (1 + modeline) | |
| 4731 && dl->ascent + fheight * value > 0) | |
| 4732 { | |
| 4733 WINDOW_TEXT_TOP_CLIP (w) = (dl->ascent + fheight * value); | |
| 4734 } | |
| 4735 | |
|
5581
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4736 if (!point_would_be_visible (w, startp, XFIXNUM (point), 0)) |
| 428 | 4737 { |
| 665 | 4738 Charbpos new_point; |
| 438 | 4739 |
| 428 | 4740 if (MINI_WINDOW_P (w)) |
| 4741 new_point = startp; | |
| 4742 else | |
| 4743 new_point = start_of_last_line (w, startp); | |
| 438 | 4744 |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4745 Fset_window_point (wrap_window (w), make_fixnum (new_point)); |
| 428 | 4746 } |
| 4747 } | |
| 4748 } | |
| 4749 } | |
| 4750 else /* value == 0 && direction == -1 */ | |
| 4751 { | |
| 4752 if (WINDOW_TEXT_TOP_CLIP (w)) | |
| 4753 { | |
| 4754 WINDOW_TEXT_TOP_CLIP (w) = 0; | |
| 4755 MARK_WINDOWS_CHANGED (w); | |
| 4756 } | |
| 4757 if (marker_position (w->start[CURRENT_DISP]) == BUF_BEGV (b)) | |
| 4758 { | |
| 563 | 4759 maybe_signal_error_1 (Qbeginning_of_buffer, Qnil, Qwindow, errb); |
| 428 | 4760 return; |
| 4761 } | |
| 4762 else | |
| 4763 { | |
| 4764 int vtarget; | |
| 4765 int movement = next_screen_context_lines - 1; | |
| 665 | 4766 Charbpos old_startp = marker_position (w->start[CURRENT_DISP]); |
| 4767 Charbpos bottom = vmotion (w, old_startp, movement, &vtarget); | |
| 4768 Charbpos startp = | |
| 428 | 4769 start_with_point_on_display_line (w, bottom, |
| 4770 -1 - (movement - vtarget)); | |
| 4771 | |
| 4772 if (startp >= old_startp) | |
| 4773 startp = vmotion (w, old_startp, -1, NULL); | |
| 4774 | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4775 set_marker_restricted (w->start[CURRENT_DISP], make_fixnum (startp), |
| 428 | 4776 w->buffer); |
| 4777 w->force_start = 1; | |
| 4778 w->start_at_line_beg = beginning_of_line_p (b, startp); | |
| 4779 MARK_WINDOWS_CHANGED (w); | |
| 4780 | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4781 if (!point_would_be_visible (w, startp, XFIXNUM (point), 0)) |
| 428 | 4782 { |
| 665 | 4783 Charbpos new_point = start_of_last_line (w, startp); |
| 428 | 4784 |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4785 Fset_window_point (wrap_window (w), make_fixnum (new_point)); |
| 428 | 4786 } |
| 4787 } | |
| 4788 } | |
| 4789 } | |
| 4790 | |
| 4791 DEFUN ("scroll-up", Fscroll_up, 0, 1, "_P", /* | |
| 444 | 4792 Scroll text of current window up COUNT lines; or near full screen if no arg. |
| 428 | 4793 A near full screen is `next-screen-context-lines' less than a full screen. |
| 444 | 4794 Negative COUNT means scroll downward. |
| 428 | 4795 When calling from a program, supply an integer as argument or nil. |
| 4796 On attempt to scroll past end of buffer, `end-of-buffer' is signaled. | |
| 4797 On attempt to scroll past beginning of buffer, `beginning-of-buffer' is | |
| 4798 signaled. | |
| 462 | 4799 |
| 4800 The characters that are moved over may be added to the current selection | |
| 4801 \(i.e. active region) if the Shift key is held down, a motion key is used | |
| 4802 to invoke this command, and `shifted-motion-keys-select-region' is t; see | |
| 4803 the documentation for this variable for more details. | |
| 428 | 4804 */ |
| 444 | 4805 (count)) |
| 4806 { | |
| 4807 window_scroll (Fselected_window (Qnil), count, 1, ERROR_ME); | |
| 428 | 4808 return Qnil; |
| 4809 } | |
| 4810 | |
| 4811 DEFUN ("scroll-down", Fscroll_down, 0, 1, "_P", /* | |
| 444 | 4812 Scroll text of current window down COUNT lines; or near full screen if no arg. |
| 428 | 4813 A near full screen is `next-screen-context-lines' less than a full screen. |
| 444 | 4814 Negative COUNT means scroll upward. |
| 428 | 4815 When calling from a program, supply a number as argument or nil. |
| 4816 On attempt to scroll past end of buffer, `end-of-buffer' is signaled. | |
| 4817 On attempt to scroll past beginning of buffer, `beginning-of-buffer' is | |
| 4818 signaled. | |
| 462 | 4819 |
| 4820 The characters that are moved over may be added to the current selection | |
| 4821 \(i.e. active region) if the Shift key is held down, a motion key is used | |
| 4822 to invoke this command, and `shifted-motion-keys-select-region' is t; see | |
| 4823 the documentation for this variable for more details. | |
| 428 | 4824 */ |
| 444 | 4825 (count)) |
| 4826 { | |
| 4827 window_scroll (Fselected_window (Qnil), count, -1, ERROR_ME); | |
| 428 | 4828 return Qnil; |
| 4829 } | |
| 4830 | |
| 4831 DEFUN ("other-window-for-scrolling", Fother_window_for_scrolling, 0, 0, 0, /* | |
| 4832 Return the other window for "other window scroll" commands. | |
| 4833 If in the minibuffer, `minibuffer-scroll-window' if non-nil | |
| 4834 specifies the window. | |
| 4835 If `other-window-scroll-buffer' is non-nil, a window | |
| 4836 showing that buffer is used. | |
| 4837 */ | |
| 4838 ()) | |
| 4839 { | |
| 4840 Lisp_Object window; | |
| 4841 Lisp_Object selected_window = Fselected_window (Qnil); | |
| 4842 | |
| 4843 if (MINI_WINDOW_P (XWINDOW (selected_window)) | |
| 4844 && !NILP (Vminibuffer_scroll_window)) | |
| 4845 window = Vminibuffer_scroll_window; | |
| 4846 /* If buffer is specified, scroll that buffer. */ | |
| 4847 else if (!NILP (Vother_window_scroll_buffer)) | |
| 4848 { | |
| 4849 window = Fget_buffer_window (Vother_window_scroll_buffer, Qnil, Qnil); | |
| 4850 if (NILP (window)) | |
| 4851 window = display_buffer (Vother_window_scroll_buffer, Qt, Qnil); | |
| 4852 } | |
| 4853 else | |
| 4854 { | |
| 4855 /* Nothing specified; look for a neighboring window on the same | |
| 4856 frame. */ | |
| 4857 window = Fnext_window (selected_window, Qnil, Qnil, Qnil); | |
| 4858 | |
| 4859 if (EQ (window, selected_window)) | |
| 4860 /* That didn't get us anywhere; look for a window on another | |
| 4861 visible frame. */ | |
| 4862 do | |
| 4863 window = Fnext_window (window, Qnil, Qt, Qnil); | |
| 4864 while (! FRAME_VISIBLE_P (XFRAME (WINDOW_FRAME (XWINDOW (window)))) | |
| 4865 && ! EQ (window, selected_window)); | |
| 4866 } | |
| 4867 | |
| 4868 CHECK_LIVE_WINDOW (window); | |
| 4869 | |
| 4870 if (EQ (window, selected_window)) | |
| 563 | 4871 invalid_operation ("There is no other window", Qunbound); |
| 428 | 4872 |
| 4873 return window; | |
| 4874 } | |
| 4875 | |
| 4876 DEFUN ("scroll-other-window", Fscroll_other_window, 0, 1, "_P", /* | |
| 444 | 4877 Scroll next window upward COUNT lines; or near full frame if no arg. |
| 428 | 4878 The next window is the one below the current one; or the one at the top |
| 444 | 4879 if the current one is at the bottom. Negative COUNT means scroll downward. |
| 428 | 4880 When calling from a program, supply a number as argument or nil. |
| 4881 | |
| 4882 If in the minibuffer, `minibuffer-scroll-window' if non-nil | |
| 4883 specifies the window to scroll. | |
| 4884 If `other-window-scroll-buffer' is non-nil, scroll the window | |
| 4885 showing that buffer, popping the buffer up if necessary. | |
| 4886 */ | |
| 444 | 4887 (count)) |
| 4888 { | |
| 4889 window_scroll (Fother_window_for_scrolling (), count, 1, ERROR_ME); | |
| 428 | 4890 return Qnil; |
| 4891 } | |
| 4892 | |
| 4893 DEFUN ("scroll-left", Fscroll_left, 0, 1, "_P", /* | |
| 444 | 4894 Scroll selected window display COUNT columns left. |
| 4895 Default for COUNT is window width minus 2. | |
| 462 | 4896 |
| 4897 The characters that are moved over may be added to the current selection | |
| 4898 \(i.e. active region) if the Shift key is held down, a motion key is used | |
| 4899 to invoke this command, and `shifted-motion-keys-select-region' is t; see | |
| 4900 the documentation for this variable for more details. | |
| 428 | 4901 */ |
| 444 | 4902 (count)) |
| 428 | 4903 { |
| 4904 Lisp_Object window = Fselected_window (Qnil); | |
| 4905 struct window *w = XWINDOW (window); | |
| 444 | 4906 int n = (NILP (count) ? |
| 4907 window_char_width (w, 0) - 2 : | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4908 XFIXNUM (Fprefix_numeric_value (count))); |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4909 |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4910 return Fset_window_hscroll (window, make_fixnum (w->hscroll + n)); |
| 428 | 4911 } |
| 4912 | |
| 4913 DEFUN ("scroll-right", Fscroll_right, 0, 1, "_P", /* | |
| 444 | 4914 Scroll selected window display COUNT columns right. |
| 4915 Default for COUNT is window width minus 2. | |
| 462 | 4916 |
| 4917 The characters that are moved over may be added to the current selection | |
| 4918 \(i.e. active region) if the Shift key is held down, a motion key is used | |
| 4919 to invoke this command, and `shifted-motion-keys-select-region' is t; see | |
| 4920 the documentation for this variable for more details. | |
| 428 | 4921 */ |
| 444 | 4922 (count)) |
| 428 | 4923 { |
| 4924 Lisp_Object window = Fselected_window (Qnil); | |
| 4925 struct window *w = XWINDOW (window); | |
| 444 | 4926 int n = (NILP (count) ? |
| 4927 window_char_width (w, 0) - 2 : | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4928 XFIXNUM (Fprefix_numeric_value (count))); |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4929 |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4930 return Fset_window_hscroll (window, make_fixnum (w->hscroll - n)); |
| 428 | 4931 } |
| 4932 | |
| 4933 DEFUN ("center-to-window-line", Fcenter_to_window_line, 0, 2, "_P", /* | |
| 4934 Center point in WINDOW. With N, put point on line N. | |
| 4935 The desired position of point is always relative to the window. | |
| 4936 If WINDOW is nil, the selected window is used. | |
| 4937 */ | |
| 4938 (n, window)) | |
| 4939 { | |
| 4940 struct window *w = decode_window (window); | |
| 4941 struct buffer *b = XBUFFER (w->buffer); | |
| 665 | 4942 Charbpos opoint = BUF_PT (b); |
| 4943 Charbpos startp; | |
| 428 | 4944 |
| 4945 if (NILP (n)) | |
| 4946 startp = start_with_line_at_pixpos (w, opoint, window_half_pixpos (w)); | |
| 4947 else | |
| 4948 { | |
| 4949 n = Fprefix_numeric_value (n); | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4950 CHECK_FIXNUM (n); |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4951 startp = start_with_point_on_display_line (w, opoint, XFIXNUM (n)); |
| 428 | 4952 } |
| 4953 | |
|
5581
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
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5474
diff
changeset
|
4954 Fset_marker (w->start[CURRENT_DISP], make_fixnum (startp), w->buffer); |
| 428 | 4955 |
| 4956 w->start_at_line_beg = beginning_of_line_p (b, startp); | |
| 4957 w->force_start = 1; | |
| 4958 MARK_WINDOWS_CHANGED (w); | |
| 4959 return Qnil; | |
| 4960 } | |
| 4961 | |
| 4962 DEFUN ("move-to-window-line", Fmove_to_window_line, 1, 2, "_P", /* | |
| 4963 Position point relative to WINDOW. | |
| 4964 With no argument, position text at center of window. | |
| 4965 An argument specifies window line; zero means top of window, | |
| 4966 negative means relative to bottom of window. | |
| 4967 If WINDOW is nil, the selected window is used. | |
| 4968 */ | |
| 4969 (arg, window)) | |
| 4970 { | |
| 4971 struct window *w; | |
| 4972 struct buffer *b; | |
| 4973 int height; | |
| 665 | 4974 Charbpos start, new_point; |
| 428 | 4975 int selected; |
| 4976 | |
| 4977 /* Don't use decode_window() because we need the new value of | |
| 4978 WINDOW. */ | |
| 4979 if (NILP (window)) | |
| 4980 window = Fselected_window (Qnil); | |
| 4981 else | |
| 4982 CHECK_LIVE_WINDOW (window); | |
| 4983 w = XWINDOW (window); | |
| 4984 b = XBUFFER (w->buffer); | |
| 4985 | |
| 4986 height = window_displayed_height (w); | |
| 4987 selected = EQ (window, Fselected_window (w->frame)); | |
| 4988 | |
| 4989 if (NILP (arg)) | |
| 4990 { | |
| 4991 int retval; | |
| 4992 | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4993 if (XFIXNUM (w->last_modified[CURRENT_DISP]) >= BUF_MODIFF (b) |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
4994 && XFIXNUM (w->last_facechange[CURRENT_DISP]) >= BUF_FACECHANGE (b)) |
| 428 | 4995 { |
| 4996 new_point = point_at_center (w, CURRENT_DISP, 0, 0); | |
| 4997 | |
| 844 | 4998 /* #### Here we are checking the selected window of the frame |
| 4999 instead of the selected window period. Elsewhere we check | |
| 5000 the selected window of the device. What a mess! */ | |
| 428 | 5001 if (selected) |
| 5002 BUF_SET_PT (b, new_point); | |
| 5003 else | |
|
5581
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
5004 Fset_window_point (window, make_fixnum (new_point)); |
| 428 | 5005 |
| 5006 retval = line_at_center (w, CURRENT_DISP, 0, 0); | |
| 5007 } | |
| 5008 else | |
| 5009 { | |
| 5010 start = marker_position (w->start[CURRENT_DISP]); | |
| 5011 if (start < BUF_BEGV (b)) | |
| 5012 start = BUF_BEGV (b); | |
| 5013 else if (start > BUF_ZV (b)) | |
| 5014 start = BUF_ZV (b); | |
| 5015 | |
| 5016 if (selected) | |
| 5017 new_point = BUF_PT (b); | |
| 5018 else | |
| 5019 new_point = marker_position (w->pointm[CURRENT_DISP]); | |
| 5020 | |
| 5021 new_point = point_at_center (w, CMOTION_DISP, start, BUF_PT (b)); | |
| 5022 | |
| 5023 if (selected) | |
| 5024 BUF_SET_PT (b, new_point); | |
| 5025 else | |
|
5581
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
5026 Fset_window_point (window, make_fixnum (new_point)); |
| 428 | 5027 |
| 5028 retval = line_at_center (w, CMOTION_DISP, start, BUF_PT (b)); | |
| 5029 } | |
| 5030 | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
5031 return make_fixnum (retval); |
| 428 | 5032 } |
| 5033 else | |
| 5034 { | |
| 5035 /* #### Is this going to work right when at eob? */ | |
| 5036 arg = Fprefix_numeric_value (arg); | |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
5037 if (XFIXNUM (arg) < 0) |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
5038 arg = make_fixnum (XFIXNUM (arg) + height); |
| 428 | 5039 } |
| 5040 | |
| 5041 start = marker_position (w->start[CURRENT_DISP]); | |
| 5042 if (start < BUF_BEGV (b) || start > BUF_ZV (b)) | |
| 5043 { | |
| 5044 if (selected) | |
| 5045 new_point = BUF_PT (b); | |
| 5046 else | |
| 5047 new_point = marker_position (w->pointm[CURRENT_DISP]); | |
| 5048 | |
| 5049 new_point = vmotion (XWINDOW (window), new_point, -height / 2, 0); | |
| 5050 | |
| 5051 if (selected) | |
| 5052 BUF_SET_PT (b, new_point); | |
| 5053 else | |
|
5581
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
5054 Fset_window_point (window, make_fixnum (new_point)); |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
5055 |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
5056 Fset_marker (w->start[CURRENT_DISP], make_fixnum (new_point), |
| 428 | 5057 w->buffer); |
| 5058 w->start_at_line_beg = beginning_of_line_p (b, new_point); | |
| 5059 w->force_start = 1; | |
| 5060 } | |
| 5061 else | |
| 5062 { | |
| 5063 if (selected) | |
| 5064 BUF_SET_PT (b, start); | |
| 5065 else | |
|
5581
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
5066 Fset_window_point (window, make_fixnum (start)); |
| 428 | 5067 } |
| 5068 | |
| 5069 if (selected) | |
| 5070 return Fvertical_motion (arg, window, Qnil); | |
| 5071 else | |
| 5072 { | |
| 5073 int vpos; | |
| 5074 new_point = vmotion (XWINDOW (window), | |
| 5075 marker_position (w->pointm[CURRENT_DISP]), | |
|
5581
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
5076 XFIXNUM (arg), &vpos); |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
5077 Fset_window_point (window, make_fixnum (new_point)); |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
5078 return make_fixnum (vpos); |
| 428 | 5079 } |
| 5080 } | |
| 5081 | |
| 5082 | |
| 5083 static int | |
| 5084 map_windows_1 (Lisp_Object window, | |
| 5085 int (*mapfun) (struct window *w, void *closure), | |
| 5086 void *closure) | |
| 5087 { | |
| 5088 for (; !NILP (window); window = XWINDOW (window)->next) | |
| 5089 { | |
| 5090 int retval; | |
| 5091 struct window *w = XWINDOW (window); | |
| 5092 | |
| 5093 if (!NILP (w->vchild)) | |
| 5094 retval = map_windows_1 (w->vchild, mapfun, closure); | |
| 5095 else if (!NILP (w->hchild)) | |
| 5096 retval = map_windows_1 (w->hchild, mapfun, closure); | |
| 5097 else | |
| 5098 retval = (mapfun) (w, closure); | |
| 5099 | |
| 5100 if (retval) | |
| 5101 return retval; | |
| 5102 } | |
| 5103 | |
| 5104 return 0; | |
| 5105 } | |
| 5106 | |
| 5107 /* Map MAPFUN over the windows in F. CLOSURE is passed to each | |
| 5108 invocation of MAPFUN. If any invocation of MAPFUN returns | |
| 5109 non-zero, the mapping is halted. Otherwise, map_windows() maps | |
| 5110 over all windows in F. | |
| 5111 | |
| 800 | 5112 If F is null, map over all frames on all devices and consoles. |
| 5113 | |
| 428 | 5114 If MAPFUN creates or deletes windows, the behavior is undefined. */ |
| 5115 | |
| 5116 int | |
| 5117 map_windows (struct frame *f, int (*mapfun) (struct window *w, void *closure), | |
| 5118 void *closure) | |
| 5119 { | |
| 5120 if (f) | |
| 5121 return map_windows_1 (FRAME_ROOT_WINDOW (f), mapfun, closure); | |
| 5122 else | |
| 5123 { | |
| 5124 Lisp_Object frmcons, devcons, concons; | |
| 5125 | |
| 5126 FRAME_LOOP_NO_BREAK(frmcons, devcons, concons) | |
| 5127 { | |
| 5128 int v = map_windows_1 (FRAME_ROOT_WINDOW (XFRAME (XCAR (frmcons))), | |
| 5129 mapfun, closure); | |
| 5130 if (v) | |
| 5131 return v; | |
| 5132 } | |
| 5133 } | |
| 5134 | |
| 5135 return 0; | |
| 5136 } | |
| 5137 | |
| 5138 | |
| 5139 static void | |
| 2286 | 5140 modeline_shadow_thickness_changed (Lisp_Object UNUSED (specifier), |
| 5141 struct window *w, | |
| 5142 Lisp_Object UNUSED (oldval)) | |
| 428 | 5143 { |
| 5144 w->shadow_thickness_changed = 1; | |
| 5145 MARK_WINDOWS_CHANGED (w); | |
| 5146 } | |
| 5147 | |
| 5148 static void | |
| 2286 | 5149 vertical_divider_changed_in_window (Lisp_Object UNUSED (specifier), |
| 428 | 5150 struct window *w, |
| 2286 | 5151 Lisp_Object UNUSED (oldval)) |
| 428 | 5152 { |
| 5153 MARK_WINDOWS_CHANGED (w); | |
| 5154 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (XFRAME (WINDOW_FRAME (w))); | |
| 5155 } | |
| 5156 | |
| 5157 /* also used in scrollbar.c */ | |
| 5158 void | |
| 2286 | 5159 some_window_value_changed (Lisp_Object UNUSED (specifier), |
| 5160 struct window *w, | |
| 5161 Lisp_Object UNUSED (oldval)) | |
| 428 | 5162 { |
| 5163 MARK_WINDOWS_CHANGED (w); | |
| 5164 } | |
| 5165 | |
| 5166 #ifdef MEMORY_USAGE_STATS | |
| 5167 | |
|
5170
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various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5168 struct window_mirror_stats |
|
5ddbab03b0e6
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diff
changeset
|
5169 { |
|
5ddbab03b0e6
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Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5170 struct usage_stats u; |
|
5384
3889ef128488
Fix misspelled words, and some grammar, across the entire source tree.
Jerry James <james@xemacs.org>
parents:
5217
diff
changeset
|
5171 /* Ancillary non-lisp */ |
|
5170
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
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diff
changeset
|
5172 Bytecount redisplay_structs; |
|
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5173 #ifdef HAVE_SCROLLBARS |
|
5384
3889ef128488
Fix misspelled words, and some grammar, across the entire source tree.
Jerry James <james@xemacs.org>
parents:
5217
diff
changeset
|
5174 /* Ancillary Lisp */ |
|
5170
5ddbab03b0e6
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Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5175 Bytecount scrollbar; |
|
5ddbab03b0e6
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Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5176 #endif |
|
5ddbab03b0e6
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diff
changeset
|
5177 }; |
|
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various fixes to memory-usage stats
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parents:
5157
diff
changeset
|
5178 |
| 428 | 5179 struct window_stats |
| 5180 { | |
|
5157
1fae11d56ad2
redo memory-usage mechanism, add way of dynamically initializing Lisp objects
Ben Wing <ben@xemacs.org>
parents:
5146
diff
changeset
|
5181 struct usage_stats u; |
|
5170
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5182 /* Ancillary non-Lisp */ |
|
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5183 Bytecount line_start; |
|
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5184 /* The next two: ancillary non-Lisp under old-GC, ancillary Lisp under |
|
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5185 NEW_GC */ |
|
5157
1fae11d56ad2
redo memory-usage mechanism, add way of dynamically initializing Lisp objects
Ben Wing <ben@xemacs.org>
parents:
5146
diff
changeset
|
5186 Bytecount face; |
|
1fae11d56ad2
redo memory-usage mechanism, add way of dynamically initializing Lisp objects
Ben Wing <ben@xemacs.org>
parents:
5146
diff
changeset
|
5187 Bytecount glyph; |
|
5170
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5188 /* The next two are copied out of the window mirror, which is an ancillary |
|
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5189 Lisp structure; the first is non-Lisp, the second Lisp, but from our |
|
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5190 perspective, they are both counted as Lisp */ |
|
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5191 Bytecount redisplay_structs; |
| 428 | 5192 #ifdef HAVE_SCROLLBARS |
|
5157
1fae11d56ad2
redo memory-usage mechanism, add way of dynamically initializing Lisp objects
Ben Wing <ben@xemacs.org>
parents:
5146
diff
changeset
|
5193 Bytecount scrollbar; |
| 428 | 5194 #endif |
|
5170
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5195 /* Remaining memory associated with window mirror (ancillary Lisp) */ |
|
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5196 Bytecount window_mirror; |
| 428 | 5197 }; |
| 5198 | |
| 5199 static void | |
| 5200 compute_window_mirror_usage (struct window_mirror *mir, | |
|
5170
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5201 struct window_mirror_stats *stats) |
|
5ddbab03b0e6
various fixes to memory-usage stats
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parents:
5157
diff
changeset
|
5202 { |
|
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5203 stats->redisplay_structs = |
|
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5204 compute_display_line_dynarr_usage (mir->current_display_lines, &stats->u) |
|
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5205 + |
|
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5206 compute_display_line_dynarr_usage (mir->desired_display_lines, &stats->u); |
| 428 | 5207 #ifdef HAVE_SCROLLBARS |
|
5170
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5208 stats->scrollbar = |
|
5ddbab03b0e6
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Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5209 compute_all_scrollbar_instance_usage (mir->scrollbar_vertical_instance) + |
|
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5210 compute_all_scrollbar_instance_usage (mir->scrollbar_horizontal_instance); |
| 428 | 5211 #endif /* HAVE_SCROLLBARS */ |
|
5170
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Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5212 } |
|
5ddbab03b0e6
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parents:
5157
diff
changeset
|
5213 |
|
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5157
diff
changeset
|
5214 |
|
5ddbab03b0e6
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Ben Wing <ben@xemacs.org>
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5157
diff
changeset
|
5215 static void |
|
5ddbab03b0e6
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parents:
5157
diff
changeset
|
5216 window_mirror_memory_usage (Lisp_Object window_mirror, |
|
5ddbab03b0e6
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5157
diff
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|
5217 struct generic_usage_stats *gustats) |
|
5ddbab03b0e6
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5157
diff
changeset
|
5218 { |
|
5ddbab03b0e6
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5157
diff
changeset
|
5219 struct window_mirror_stats *stats = (struct window_mirror_stats *) gustats; |
|
5ddbab03b0e6
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5157
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changeset
|
5220 |
|
5ddbab03b0e6
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5157
diff
changeset
|
5221 compute_window_mirror_usage (XWINDOW_MIRROR (window_mirror), stats); |
| 428 | 5222 } |
| 5223 | |
| 5224 static void | |
| 5225 compute_window_usage (struct window *w, struct window_stats *stats, | |
|
5157
1fae11d56ad2
redo memory-usage mechanism, add way of dynamically initializing Lisp objects
Ben Wing <ben@xemacs.org>
parents:
5146
diff
changeset
|
5226 struct usage_stats *ustats) |
| 428 | 5227 { |
|
5170
5ddbab03b0e6
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5157
diff
changeset
|
5228 stats->line_start = |
|
5157
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Ben Wing <ben@xemacs.org>
parents:
5146
diff
changeset
|
5229 compute_line_start_cache_dynarr_usage (w->line_start_cache, ustats); |
|
5170
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
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5157
diff
changeset
|
5230 stats->face = compute_face_cachel_usage (w->face_cachels, |
|
5217
c0f518284a68
Unbreak `show-memory-usage' for NEW_GC.
Marcus Crestani <crestani@informatik.uni-tuebingen.de>
parents:
5214
diff
changeset
|
5231 ustats); |
|
5170
5ddbab03b0e6
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Ben Wing <ben@xemacs.org>
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5157
diff
changeset
|
5232 stats->glyph = compute_glyph_cachel_usage (w->glyph_cachels, |
|
5217
c0f518284a68
Unbreak `show-memory-usage' for NEW_GC.
Marcus Crestani <crestani@informatik.uni-tuebingen.de>
parents:
5214
diff
changeset
|
5233 ustats); |
|
5170
5ddbab03b0e6
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5157
diff
changeset
|
5234 { |
|
5ddbab03b0e6
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Ben Wing <ben@xemacs.org>
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5157
diff
changeset
|
5235 struct window_mirror *wm; |
|
5ddbab03b0e6
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5157
diff
changeset
|
5236 |
|
5ddbab03b0e6
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diff
changeset
|
5237 wm = find_window_mirror_maybe (w); |
|
5ddbab03b0e6
various fixes to memory-usage stats
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diff
changeset
|
5238 if (wm) |
|
5ddbab03b0e6
various fixes to memory-usage stats
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diff
changeset
|
5239 { |
|
5ddbab03b0e6
various fixes to memory-usage stats
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diff
changeset
|
5240 struct generic_usage_stats gustats; |
|
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diff
changeset
|
5241 struct window_mirror_stats *wmstats; |
|
5ddbab03b0e6
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diff
changeset
|
5242 Bytecount total; |
|
5ddbab03b0e6
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|
5243 total = lisp_object_memory_usage_full (wrap_window_mirror (wm), |
|
5ddbab03b0e6
various fixes to memory-usage stats
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|
5244 NULL, NULL, NULL, &gustats); |
|
5ddbab03b0e6
various fixes to memory-usage stats
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diff
changeset
|
5245 wmstats = (struct window_mirror_stats *) &gustats; |
|
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parents:
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diff
changeset
|
5246 stats->redisplay_structs = wmstats->redisplay_structs; |
|
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parents:
5157
diff
changeset
|
5247 total -= stats->redisplay_structs; |
|
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various fixes to memory-usage stats
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diff
changeset
|
5248 #ifdef HAVE_SCROLLBARS |
|
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parents:
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diff
changeset
|
5249 stats->scrollbar = wmstats->scrollbar; |
|
5ddbab03b0e6
various fixes to memory-usage stats
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parents:
5157
diff
changeset
|
5250 total -= stats->scrollbar; |
|
5ddbab03b0e6
various fixes to memory-usage stats
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parents:
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diff
changeset
|
5251 #endif |
|
5ddbab03b0e6
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parents:
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diff
changeset
|
5252 stats->window_mirror = total; |
|
5ddbab03b0e6
various fixes to memory-usage stats
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parents:
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diff
changeset
|
5253 } |
|
5ddbab03b0e6
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5157
diff
changeset
|
5254 } |
| 428 | 5255 } |
| 5256 | |
|
5157
1fae11d56ad2
redo memory-usage mechanism, add way of dynamically initializing Lisp objects
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parents:
5146
diff
changeset
|
5257 static void |
|
1fae11d56ad2
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parents:
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changeset
|
5258 window_memory_usage (Lisp_Object window, struct generic_usage_stats *gustats) |
| 428 | 5259 { |
|
5157
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parents:
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diff
changeset
|
5260 struct window_stats *stats = (struct window_stats *) gustats; |
|
1fae11d56ad2
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parents:
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diff
changeset
|
5261 |
|
1fae11d56ad2
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diff
changeset
|
5262 compute_window_usage (XWINDOW (window), stats, &stats->u); |
| 428 | 5263 } |
| 5264 | |
| 5265 #endif /* MEMORY_USAGE_STATS */ | |
|
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|
5266 |
|
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changeset
|
5267 |
| 428 | 5268 |
| 5269 /* Mark all subwindows of a window as deleted. The argument | |
| 5270 W is actually the subwindow tree of the window in question. */ | |
| 5271 | |
| 5272 void | |
| 5273 delete_all_subwindows (struct window *w) | |
| 5274 { | |
| 5275 if (!NILP (w->next)) delete_all_subwindows (XWINDOW (w->next)); | |
| 5276 if (!NILP (w->vchild)) delete_all_subwindows (XWINDOW (w->vchild)); | |
| 5277 if (!NILP (w->hchild)) delete_all_subwindows (XWINDOW (w->hchild)); | |
| 5278 | |
| 5279 mark_window_as_deleted (w); | |
| 5280 } | |
| 5281 | |
| 1149 | 5282 |
| 2289 | 5283 static int |
| 5284 get_current_pixel_pos (Lisp_Object window, Lisp_Object pos, | |
| 5285 struct window **w, | |
| 5286 struct rune **rb, struct display_line **dl) | |
| 428 | 5287 { |
| 2289 | 5288 display_line_dynarr *dla; |
| 5289 struct display_block *db = NULL; | |
| 5290 int x, y; | |
| 5291 | |
| 5292 *rb = NULL; | |
| 5293 *dl = NULL; | |
| 5294 *w = decode_window (window); | |
| 5295 dla = window_display_lines (*w, CURRENT_DISP); | |
| 5296 x = (*w)->last_point_x[CURRENT_DISP]; | |
| 5297 y = (*w)->last_point_y[CURRENT_DISP]; | |
| 5298 if (MINI_WINDOW_P (*w)) | |
| 5299 return 0; | |
| 428 | 5300 |
| 5301 if (y<0 || x<0 || y >= Dynarr_length (dla) || !NILP (pos)) | |
| 5302 { | |
| 5303 int first_line, i; | |
| 665 | 5304 Charbpos point; |
| 428 | 5305 |
| 5306 if (NILP (pos)) | |
| 5307 pos = Fwindow_point (window); | |
| 438 | 5308 |
|
5581
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
5309 CHECK_FIXNUM (pos); |
|
56144c8593a8
Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
5310 point = XFIXNUM (pos); |
| 428 | 5311 |
| 4967 | 5312 if (Dynarr_length (dla) && Dynarr_begin (dla)->modeline) |
| 428 | 5313 first_line = 1; |
| 5314 else | |
| 5315 first_line = 0; | |
| 5316 | |
| 5317 for (i = first_line; i < Dynarr_length (dla); i++) | |
| 5318 { | |
| 2289 | 5319 *dl = Dynarr_atp (dla, i); |
| 428 | 5320 /* find the vertical location first */ |
| 2289 | 5321 if (point >= (*dl)->charpos && point <= (*dl)->end_charpos) |
| 428 | 5322 { |
| 2289 | 5323 db = get_display_block_from_line (*dl, TEXT); |
| 428 | 5324 for (i = 0; i < Dynarr_length (db->runes); i++) |
| 5325 { | |
| 2289 | 5326 *rb = Dynarr_atp (db->runes, i); |
| 2290 | 5327 if (point <= (*rb)->charpos) |
| 826 | 5328 goto found_charpos; |
| 428 | 5329 } |
| 2289 | 5330 return 0; |
| 428 | 5331 } |
| 5332 } | |
| 2289 | 5333 return 0; |
| 826 | 5334 found_charpos: |
| 428 | 5335 ; |
| 5336 } | |
| 5337 else | |
| 5338 { | |
| 442 | 5339 /* optimized case */ |
| 2289 | 5340 *dl = Dynarr_atp (dla, y); |
| 5341 db = get_display_block_from_line (*dl, TEXT); | |
| 428 | 5342 |
| 5343 if (x >= Dynarr_length (db->runes)) | |
| 2289 | 5344 return 0; |
| 5345 | |
| 5346 *rb = Dynarr_atp (db->runes, x); | |
| 428 | 5347 } |
| 5348 | |
| 2289 | 5349 return 1; |
| 5350 } | |
| 5351 | |
| 5352 DEFUN ("current-pixel-column", Fcurrent_pixel_column, 0, 2, 0, /* | |
| 5353 Return the horizontal pixel position of point POS in window. | |
| 5354 Beginning of line is column 0. If WINDOW is nil, the current window | |
| 5355 is assumed. If POS is nil, point is assumed. Note that POS must be | |
| 5356 visible for a non-nil result to be returned. This is calculated using | |
| 5357 the redisplay display tables; because of this, the returned value will | |
| 5358 only be correct if the redisplay tables are up-to-date. Use | |
| 5359 \"(sit-for 0)\" to insure that they are; however, if WINDOW is part of | |
| 5360 a new frame, use the following instead: | |
| 5361 (while (not (frame-visible-p frame)) (sleep-for .5)) | |
| 5362 */ | |
| 5363 (window, pos)) | |
| 5364 { | |
| 5365 struct window* w; | |
| 5366 struct display_line *dl; | |
| 5367 struct rune* rb; | |
| 5368 | |
| 5369 if (!get_current_pixel_pos(window, pos, &w, &rb, &dl)) | |
| 5370 return Qnil; | |
| 5371 | |
|
5581
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
5372 return make_fixnum (rb->xpos - WINDOW_LEFT (w)); |
| 428 | 5373 } |
| 5374 | |
| 2289 | 5375 DEFUN ("current-pixel-row", Fcurrent_pixel_row, 0, 2, 0, /* |
| 5376 Return the vertical pixel position of point POS in window. Top of | |
| 5377 window is row 0. If WINDOW is nil, the current window is assumed. If | |
| 5378 POS is nil, point is assumed. Note that POS must be visible for a | |
| 5379 non-nil result to be returned. This is calculated using the redisplay | |
| 5380 display tables; because of this, the returned value will only be | |
| 5381 correct if the redisplay tables are up-to-date. Use \"(sit-for 0)\" | |
| 5382 to insure that they are; however, if WINDOW is part of a new frame, | |
| 5383 use the following instead: | |
| 5384 (while (not (frame-visible-p frame)) (sleep-for .5)) | |
| 5385 */ | |
| 5386 (window, pos)) | |
| 5387 { | |
| 5388 struct window* w; | |
| 5389 struct display_line *dl; | |
| 5390 struct rune* rb; | |
| 5391 | |
| 5392 if (!get_current_pixel_pos(window, pos, &w, &rb, &dl)) | |
| 5393 return Qnil; | |
| 5394 | |
|
5581
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Mechanically change INT to FIXNUM in our sources.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5474
diff
changeset
|
5395 return make_fixnum (dl->ypos - dl->ascent - WINDOW_TOP (w)); |
| 2289 | 5396 } |
| 5397 | |
| 428 | 5398 |
| 5399 #ifdef DEBUG_XEMACS | |
| 5400 /* This is short and simple in elisp, but... it was written to debug | |
| 5401 problems purely on the C side. That is where we need to call it so | |
| 5402 here it is. */ | |
| 5403 static void | |
| 5404 debug_print_window (Lisp_Object window, int level) | |
| 5405 { | |
| 5406 int i; | |
| 5407 Lisp_Object child = Fwindow_first_vchild (window); | |
| 5408 | |
| 5409 if (NILP (child)) | |
| 5410 child = Fwindow_first_hchild (window); | |
| 5411 | |
| 5412 for (i = level; i > 0; i--) | |
| 442 | 5413 stderr_out ("\t"); |
| 5414 | |
| 5415 stderr_out ("#<window"); | |
| 428 | 5416 { |
| 5417 Lisp_Object buffer = XWINDOW (window)->buffer; | |
| 5418 if (!NILP (buffer) && BUFFERP (buffer)) | |
| 442 | 5419 stderr_out (" on %s", XSTRING_DATA (XBUFFER (buffer)->name)); |
| 428 | 5420 } |
|
5146
88bd4f3ef8e4
make lrecord UID's have a separate UID space for each object, resurrect debug SOE code in extents.c
Ben Wing <ben@xemacs.org>
parents:
5142
diff
changeset
|
5421 stderr_out (" 0x%x>", LISP_OBJECT_UID (window)); |
| 428 | 5422 |
| 5423 while (!NILP (child)) | |
| 5424 { | |
| 5425 debug_print_window (child, level + 1); | |
| 5426 child = Fwindow_next_child (child); | |
| 5427 } | |
| 5428 } | |
| 5429 | |
| 5430 void debug_print_windows (struct frame *f); | |
| 5431 void | |
| 5432 debug_print_windows (struct frame *f) | |
| 5433 { | |
| 5434 debug_print_window (f->root_window, 0); | |
| 5435 putc ('\n', stderr); | |
| 5436 } | |
| 5437 #endif /* DEBUG_XEMACS */ | |
| 5438 | |
| 5439 | |
| 5440 /************************************************************************/ | |
| 5441 /* initialization */ | |
| 5442 /************************************************************************/ | |
| 5443 | |
| 5444 void | |
|
5157
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redo memory-usage mechanism, add way of dynamically initializing Lisp objects
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parents:
5146
diff
changeset
|
5445 window_objects_create (void) |
|
1fae11d56ad2
redo memory-usage mechanism, add way of dynamically initializing Lisp objects
Ben Wing <ben@xemacs.org>
parents:
5146
diff
changeset
|
5446 { |
|
1fae11d56ad2
redo memory-usage mechanism, add way of dynamically initializing Lisp objects
Ben Wing <ben@xemacs.org>
parents:
5146
diff
changeset
|
5447 #ifdef MEMORY_USAGE_STATS |
|
1fae11d56ad2
redo memory-usage mechanism, add way of dynamically initializing Lisp objects
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parents:
5146
diff
changeset
|
5448 OBJECT_HAS_METHOD (window, memory_usage); |
|
5170
5ddbab03b0e6
various fixes to memory-usage stats
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parents:
5157
diff
changeset
|
5449 OBJECT_HAS_METHOD (window_mirror, memory_usage); |
|
5157
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redo memory-usage mechanism, add way of dynamically initializing Lisp objects
Ben Wing <ben@xemacs.org>
parents:
5146
diff
changeset
|
5450 #endif |
|
1fae11d56ad2
redo memory-usage mechanism, add way of dynamically initializing Lisp objects
Ben Wing <ben@xemacs.org>
parents:
5146
diff
changeset
|
5451 } |
|
1fae11d56ad2
redo memory-usage mechanism, add way of dynamically initializing Lisp objects
Ben Wing <ben@xemacs.org>
parents:
5146
diff
changeset
|
5452 |
|
1fae11d56ad2
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Ben Wing <ben@xemacs.org>
parents:
5146
diff
changeset
|
5453 void |
| 428 | 5454 syms_of_window (void) |
| 5455 { | |
|
5117
3742ea8250b5
Checking in final CVS version of workspace 'ben-lisp-object'
Ben Wing <ben@xemacs.org>
parents:
3078
diff
changeset
|
5456 INIT_LISP_OBJECT (window); |
|
3742ea8250b5
Checking in final CVS version of workspace 'ben-lisp-object'
Ben Wing <ben@xemacs.org>
parents:
3078
diff
changeset
|
5457 INIT_LISP_OBJECT (window_mirror); |
| 3092 | 5458 #ifdef NEW_GC |
|
5118
e0db3c197671
merge up to latest default branch, doesn't compile yet
Ben Wing <ben@xemacs.org>
diff
changeset
|
5459 INIT_LISP_OBJECT (face_cachel); |
|
e0db3c197671
merge up to latest default branch, doesn't compile yet
Ben Wing <ben@xemacs.org>
diff
changeset
|
5460 INIT_LISP_OBJECT (face_cachel_dynarr); |
|
e0db3c197671
merge up to latest default branch, doesn't compile yet
Ben Wing <ben@xemacs.org>
diff
changeset
|
5461 INIT_LISP_OBJECT (glyph_cachel); |
|
e0db3c197671
merge up to latest default branch, doesn't compile yet
Ben Wing <ben@xemacs.org>
diff
changeset
|
5462 INIT_LISP_OBJECT (glyph_cachel_dynarr); |
| 3092 | 5463 #endif /* NEW_GC */ |
| 442 | 5464 |
| 563 | 5465 DEFSYMBOL (Qwindowp); |
| 5466 DEFSYMBOL (Qwindow_live_p); | |
| 5467 DEFSYMBOL (Qdisplay_buffer); | |
| 428 | 5468 |
| 5469 #ifdef MEMORY_USAGE_STATS | |
| 563 | 5470 DEFSYMBOL (Qface_cache); |
| 5471 DEFSYMBOL (Qglyph_cache); | |
| 5472 DEFSYMBOL (Qline_start_cache); | |
| 428 | 5473 #ifdef HAVE_SCROLLBARS |
| 563 | 5474 DEFSYMBOL (Qscrollbar_instances); |
| 428 | 5475 #endif |
|
5170
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various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
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5157
diff
changeset
|
5476 DEFSYMBOL (Qredisplay_structs); |
| 428 | 5477 #endif |
| 5478 | |
| 707 | 5479 DEFSYMBOL (Qtruncate_partial_width_windows); |
| 1149 | 5480 DEFSYMBOL (Qcurrent_window_configuration); |
| 5481 DEFSYMBOL (Qset_window_configuration); | |
| 707 | 5482 |
| 428 | 5483 DEFSUBR (Fselected_window); |
| 5484 DEFSUBR (Flast_nonminibuf_window); | |
| 5485 DEFSUBR (Fminibuffer_window); | |
| 5486 DEFSUBR (Fwindow_minibuffer_p); | |
| 5487 DEFSUBR (Fwindowp); | |
| 5488 DEFSUBR (Fwindow_live_p); | |
| 5489 DEFSUBR (Fwindow_first_hchild); | |
| 5490 DEFSUBR (Fwindow_first_vchild); | |
| 5491 DEFSUBR (Fwindow_next_child); | |
| 5492 DEFSUBR (Fwindow_previous_child); | |
| 5493 DEFSUBR (Fwindow_parent); | |
| 5494 DEFSUBR (Fwindow_lowest_p); | |
| 5495 DEFSUBR (Fwindow_truncated_p); | |
| 5496 DEFSUBR (Fwindow_highest_p); | |
| 5497 DEFSUBR (Fwindow_leftmost_p); | |
| 5498 DEFSUBR (Fwindow_rightmost_p); | |
| 5499 DEFSUBR (Fpos_visible_in_window_p); | |
| 5500 DEFSUBR (Fwindow_buffer); | |
| 5501 DEFSUBR (Fwindow_frame); | |
| 5502 DEFSUBR (Fwindow_height); | |
| 5503 DEFSUBR (Fwindow_displayed_height); | |
| 5504 DEFSUBR (Fwindow_width); | |
| 442 | 5505 DEFSUBR (Fwindow_full_width); |
| 428 | 5506 DEFSUBR (Fwindow_pixel_height); |
| 5507 DEFSUBR (Fwindow_pixel_width); | |
| 442 | 5508 DEFSUBR (Fwindow_text_area_height); |
| 428 | 5509 DEFSUBR (Fwindow_text_area_pixel_height); |
| 5510 DEFSUBR (Fwindow_displayed_text_pixel_height); | |
| 5511 DEFSUBR (Fwindow_text_area_pixel_width); | |
| 5512 DEFSUBR (Fwindow_hscroll); | |
| 438 | 5513 DEFSUBR (Fset_window_hscroll); |
| 428 | 5514 DEFSUBR (Fmodeline_hscroll); |
| 5515 DEFSUBR (Fset_modeline_hscroll); | |
| 5516 DEFSUBR (Fwindow_pixel_edges); | |
| 5517 DEFSUBR (Fwindow_text_area_pixel_edges); | |
| 5518 DEFSUBR (Fwindow_point); | |
| 5519 DEFSUBR (Fwindow_start); | |
| 5520 DEFSUBR (Fwindow_end); | |
| 442 | 5521 DEFSUBR (Fwindow_last_line_visible_height); |
| 428 | 5522 DEFSUBR (Fset_window_point); |
| 5523 DEFSUBR (Fset_window_start); | |
| 5524 DEFSUBR (Fwindow_dedicated_p); | |
| 5525 DEFSUBR (Fset_window_dedicated_p); | |
| 5526 DEFSUBR (Fnext_window); | |
| 5527 DEFSUBR (Fprevious_window); | |
| 5528 DEFSUBR (Fnext_vertical_window); | |
| 5529 DEFSUBR (Fother_window); | |
| 5530 DEFSUBR (Fget_lru_window); | |
| 5531 DEFSUBR (Fget_largest_window); | |
| 5532 DEFSUBR (Fget_buffer_window); | |
| 5533 DEFSUBR (Fwindow_left_margin_pixel_width); | |
| 5534 DEFSUBR (Fwindow_right_margin_pixel_width); | |
| 5535 DEFSUBR (Fdelete_other_windows); | |
| 5536 DEFSUBR (Fdelete_windows_on); | |
| 5537 DEFSUBR (Freplace_buffer_in_windows); | |
| 5538 DEFSUBR (Fdelete_window); | |
| 5539 DEFSUBR (Fset_window_buffer); | |
| 5540 DEFSUBR (Fselect_window); | |
| 5541 DEFSUBR (Fsplit_window); | |
| 5542 DEFSUBR (Fenlarge_window); | |
| 5543 DEFSUBR (Fenlarge_window_pixels); | |
| 5544 DEFSUBR (Fshrink_window); | |
| 5545 DEFSUBR (Fshrink_window_pixels); | |
| 5546 DEFSUBR (Fscroll_up); | |
| 5547 DEFSUBR (Fscroll_down); | |
| 5548 DEFSUBR (Fscroll_left); | |
| 5549 DEFSUBR (Fscroll_right); | |
| 5550 DEFSUBR (Fother_window_for_scrolling); | |
| 5551 DEFSUBR (Fscroll_other_window); | |
| 5552 DEFSUBR (Fcenter_to_window_line); | |
| 5553 DEFSUBR (Fmove_to_window_line); | |
| 5554 DEFSUBR (Fcurrent_pixel_column); | |
| 2289 | 5555 DEFSUBR (Fcurrent_pixel_row); |
| 428 | 5556 } |
| 5557 | |
| 5558 void | |
| 5559 reinit_vars_of_window (void) | |
| 5560 { | |
| 5561 /* Make sure all windows get marked */ | |
| 5562 minibuf_window = Qnil; | |
| 5563 staticpro_nodump (&minibuf_window); | |
| 5564 } | |
| 5565 | |
| 5566 void | |
| 5567 vars_of_window (void) | |
| 5568 { | |
|
5157
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redo memory-usage mechanism, add way of dynamically initializing Lisp objects
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5146
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changeset
|
5569 #ifdef MEMORY_USAGE_STATS |
|
5170
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5157
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changeset
|
5570 Lisp_Object l; |
|
5ddbab03b0e6
various fixes to memory-usage stats
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parents:
5157
diff
changeset
|
5571 |
|
5ddbab03b0e6
various fixes to memory-usage stats
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5157
diff
changeset
|
5572 l = listu (Qline_start_cache, |
|
5ddbab03b0e6
various fixes to memory-usage stats
Ben Wing <ben@xemacs.org>
parents:
5157
diff
changeset
|
5573 #ifdef NEW_GC |
|
5ddbab03b0e6
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5574 Qt, |
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5575 #endif |
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5576 Qface_cache, Qglyph_cache, |
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5577 #ifndef NEW_GC |
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5578 Qt, |
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5579 #endif |
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5580 Qredisplay_structs, |
|
5164
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5581 #ifdef HAVE_SCROLLBARS |
|
5170
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5582 Qscrollbar_instances, |
|
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5583 #endif |
|
5170
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5584 intern ("window-mirror"), |
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5585 Qunbound); |
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5586 |
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5587 OBJECT_HAS_PROPERTY (window, memusage_stats_list, l); |
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5588 |
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5589 l = listu (Qredisplay_structs, |
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5590 #ifdef HAVE_SCROLLBARS |
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5591 Qt, Qscrollbar_instances, |
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5592 #endif |
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5593 Qunbound); |
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5594 OBJECT_HAS_PROPERTY (window_mirror, memusage_stats_list, l); |
|
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5595 #endif /* MEMORY_USAGE_STATS */ |
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5596 |
| 428 | 5597 DEFVAR_BOOL ("scroll-on-clipped-lines", &scroll_on_clipped_lines /* |
| 5598 *Non-nil means to scroll if point lands on a line which is clipped. | |
| 5599 */ ); | |
| 5600 scroll_on_clipped_lines = 1; | |
| 5601 | |
| 5602 DEFVAR_LISP ("temp-buffer-show-function", &Vtemp_buffer_show_function /* | |
| 5603 Non-nil means call as function to display a help buffer. | |
| 5604 The function is called with one argument, the buffer to be displayed. | |
| 5605 Used by `with-output-to-temp-buffer'. | |
| 5606 If this function is used, then it must do the entire job of showing | |
| 5607 the buffer; `temp-buffer-show-hook' is not run unless this function runs it. | |
| 442 | 5608 \(`temp-buffer-show-hook' is obsolete. Do not use in new code.) |
| 428 | 5609 */ ); |
| 5610 Vtemp_buffer_show_function = Qnil; | |
| 5611 | |
| 5612 DEFVAR_LISP ("minibuffer-scroll-window", &Vminibuffer_scroll_window /* | |
| 5613 Non-nil means it is the window that \\<minibuffer-local-map>\\[scroll-other-window] in minibuffer should scroll. | |
| 5614 */ ); | |
| 5615 Vminibuffer_scroll_window = Qnil; | |
| 5616 | |
| 5617 DEFVAR_LISP ("other-window-scroll-buffer", &Vother_window_scroll_buffer /* | |
| 5618 If non-nil, this is a buffer and \\[scroll-other-window] should scroll its window. | |
| 5619 */ ); | |
| 5620 Vother_window_scroll_buffer = Qnil; | |
| 5621 | |
| 5622 DEFVAR_LISP ("window-pixel-scroll-increment", &Vwindow_pixel_scroll_increment /* | |
| 5623 *Number of pixels to scroll by per requested line. | |
| 5624 If nil then normal line scrolling occurs regardless of line height. | |
| 5625 If t then scrolling is done in increments equal to the height of the default face. | |
| 5626 */ ); | |
| 5627 Vwindow_pixel_scroll_increment = Qt; | |
| 5628 | |
| 5629 DEFVAR_INT ("next-screen-context-lines", &next_screen_context_lines /* | |
| 5630 *Number of lines of continuity when scrolling by screenfuls. | |
| 5631 */ ); | |
| 5632 next_screen_context_lines = 2; | |
| 5633 | |
| 5634 DEFVAR_INT ("window-min-height", &window_min_height /* | |
| 5635 *Delete any window less than this tall (including its modeline). | |
| 5636 */ ); | |
| 5637 window_min_height = 4; | |
| 5638 | |
| 5639 DEFVAR_INT ("window-min-width", &window_min_width /* | |
| 5640 *Delete any window less than this wide. | |
| 5641 */ ); | |
| 5642 window_min_width = 10; | |
| 5643 } | |
| 5644 | |
| 5645 void | |
| 5646 specifier_vars_of_window (void) | |
| 5647 { | |
| 5648 DEFVAR_SPECIFIER ("modeline-shadow-thickness", &Vmodeline_shadow_thickness /* | |
| 5649 *How thick to draw 3D shadows around modelines. | |
| 5650 If this is set to 0, modelines will be the traditional 2D. Sizes above | |
| 5651 10 will be accepted but the maximum thickness that will be drawn is 10. | |
| 5652 This is a specifier; use `set-specifier' to change it. | |
| 5653 */ ); | |
| 5654 Vmodeline_shadow_thickness = Fmake_specifier (Qinteger); | |
| 5655 /* The initial value for modeline-shadow-thickness is 2, but if the | |
| 5656 user removes all specifications we provide a fallback value of 0, | |
| 5657 which is probably what was expected. */ | |
| 5658 set_specifier_fallback (Vmodeline_shadow_thickness, | |
| 5659 list1 (Fcons (Qnil, Qzero))); | |
|
5581
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Aidan Kehoe <kehoea@parhasard.net>
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diff
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|
5660 Fadd_spec_to_specifier (Vmodeline_shadow_thickness, make_fixnum (2), |
| 428 | 5661 Qnil, Qnil, Qnil); |
| 5662 set_specifier_caching (Vmodeline_shadow_thickness, | |
| 438 | 5663 offsetof (struct window, modeline_shadow_thickness), |
| 428 | 5664 modeline_shadow_thickness_changed, |
| 444 | 5665 0, 0, 0); |
| 428 | 5666 |
| 5667 DEFVAR_SPECIFIER ("has-modeline-p", &Vhas_modeline_p /* | |
| 5668 *Whether the modeline should be displayed. | |
| 5669 This is a specifier; use `set-specifier' to change it. | |
| 5670 */ ); | |
| 5671 Vhas_modeline_p = Fmake_specifier (Qboolean); | |
| 5672 set_specifier_fallback (Vhas_modeline_p, | |
| 5673 list1 (Fcons (Qnil, Qt))); | |
| 5674 set_specifier_caching (Vhas_modeline_p, | |
| 438 | 5675 offsetof (struct window, has_modeline_p), |
| 428 | 5676 /* #### It's strange that we need a special |
| 5677 flag to indicate that the shadow-thickness | |
| 5678 has changed, but not one to indicate that | |
| 5679 the modeline has been turned off or on. */ | |
| 5680 some_window_value_changed, | |
| 444 | 5681 0, 0, 0); |
| 428 | 5682 |
| 5683 DEFVAR_SPECIFIER ("vertical-divider-always-visible-p", | |
| 5684 &Vvertical_divider_always_visible_p /* | |
| 5685 *Should XEmacs always display vertical dividers between windows. | |
| 5686 | |
| 5687 When this is non-nil, vertical dividers are always shown, and are | |
| 5688 draggable. When it is nil, vertical dividers are shown only when | |
| 5689 there are no scrollbars in between windows, and are not draggable. | |
| 5690 | |
| 5691 This is a specifier; use `set-specifier' to change it. | |
| 5692 */ ); | |
| 5693 Vvertical_divider_always_visible_p = Fmake_specifier (Qboolean); | |
| 5694 set_specifier_fallback (Vvertical_divider_always_visible_p, | |
| 5695 list1 (Fcons (Qnil, Qt))); | |
| 5696 set_specifier_caching (Vvertical_divider_always_visible_p, | |
| 438 | 5697 offsetof (struct window, |
| 5698 vertical_divider_always_visible_p), | |
| 428 | 5699 vertical_divider_changed_in_window, |
| 444 | 5700 0, 0, 0); |
| 428 | 5701 |
| 5702 DEFVAR_SPECIFIER ("vertical-divider-shadow-thickness", &Vvertical_divider_shadow_thickness /* | |
| 5703 *How thick to draw 3D shadows around vertical dividers. | |
| 5704 This is a specifier; use `set-specifier' to change it. | |
| 5705 */ ); | |
| 5706 Vvertical_divider_shadow_thickness = Fmake_specifier (Qinteger); | |
| 5707 set_specifier_fallback (Vvertical_divider_shadow_thickness, | |
| 5708 list1 (Fcons (Qnil, Qzero))); | |
|
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|
5709 Fadd_spec_to_specifier (Vvertical_divider_shadow_thickness, make_fixnum (2), |
| 428 | 5710 Qnil, Qnil, Qnil); |
| 5711 set_specifier_caching (Vvertical_divider_shadow_thickness, | |
| 438 | 5712 offsetof (struct window, |
| 5713 vertical_divider_shadow_thickness), | |
| 428 | 5714 vertical_divider_changed_in_window, |
| 444 | 5715 0, 0, 0); |
| 428 | 5716 DEFVAR_SPECIFIER ("vertical-divider-line-width", &Vvertical_divider_line_width /* |
| 5717 *The width of the vertical dividers, not including shadows. | |
| 5718 | |
| 5719 For TTY windows, divider line is always one character wide. When | |
| 5720 instance of this specifier is zero in a TTY window, no divider is | |
| 5721 drawn at all between windows. When non-zero, a one character wide | |
| 5722 divider is displayed. | |
| 5723 | |
| 5724 This is a specifier; use `set-specifier' to change it. | |
| 5725 */ ); | |
| 5726 | |
| 5727 Vvertical_divider_line_width = Fmake_specifier (Qnatnum); | |
| 5728 { | |
| 5729 Lisp_Object fb = Qnil; | |
| 5730 #ifdef HAVE_TTY | |
|
5581
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Aidan Kehoe <kehoea@parhasard.net>
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5474
diff
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|
5731 fb = Fcons (Fcons (list1 (Qtty), make_fixnum (1)), fb); |
| 428 | 5732 #endif |
| 462 | 5733 #ifdef HAVE_GTK |
|
5581
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5474
diff
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|
5734 fb = Fcons (Fcons (list1 (Qgtk), make_fixnum (3)), fb); |
| 462 | 5735 #endif |
| 428 | 5736 #ifdef HAVE_X_WINDOWS |
|
5581
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|
5737 fb = Fcons (Fcons (list1 (Qx), make_fixnum (3)), fb); |
| 428 | 5738 #endif |
| 5739 #ifdef HAVE_MS_WINDOWS | |
| 5740 /* #### This should be made magic and made to obey system settings */ | |
|
5581
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5474
diff
changeset
|
5741 fb = Fcons (Fcons (list1 (Qmswindows), make_fixnum (3)), fb); |
| 428 | 5742 #endif |
| 5743 set_specifier_fallback (Vvertical_divider_line_width, fb); | |
| 5744 } | |
| 5745 set_specifier_caching (Vvertical_divider_line_width, | |
| 438 | 5746 offsetof (struct window, |
| 5747 vertical_divider_line_width), | |
| 428 | 5748 vertical_divider_changed_in_window, |
| 444 | 5749 0, 0, 0); |
| 428 | 5750 |
| 5751 DEFVAR_SPECIFIER ("vertical-divider-spacing", &Vvertical_divider_spacing /* | |
| 5752 *How much space to leave around the vertical dividers. | |
| 5753 | |
| 5754 In TTY windows, spacing is always zero, and the value of this | |
| 5755 specifier is ignored. | |
| 5756 | |
| 5757 This is a specifier; use `set-specifier' to change it. | |
| 5758 */ ); | |
| 5759 Vvertical_divider_spacing = Fmake_specifier (Qnatnum); | |
| 5760 { | |
| 5761 Lisp_Object fb = Qnil; | |
| 5762 #ifdef HAVE_TTY | |
| 5763 fb = Fcons (Fcons (list1 (Qtty), Qzero), fb); | |
| 5764 #endif | |
| 5765 #ifdef HAVE_X_WINDOWS | |
| 5766 /* #### 3D dividers look great on MS Windows with spacing = 0. | |
| 5767 Should not the same value be the fallback under X? - kkm */ | |
|
5581
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5474
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changeset
|
5768 fb = Fcons (Fcons (list1 (Qx), make_fixnum (2)), fb); |
| 428 | 5769 #endif |
| 462 | 5770 #ifdef HAVE_GTK |
| 5771 fb = Fcons (Fcons (list1 (Qgtk), Qzero), fb); | |
| 5772 #endif | |
| 428 | 5773 #ifdef HAVE_MS_WINDOWS |
| 5774 fb = Fcons (Fcons (list1 (Qmswindows), Qzero), fb); | |
| 5775 #endif | |
| 5776 set_specifier_fallback (Vvertical_divider_spacing, fb); | |
| 5777 } | |
| 5778 set_specifier_caching (Vvertical_divider_spacing, | |
| 438 | 5779 offsetof (struct window, vertical_divider_spacing), |
| 428 | 5780 vertical_divider_changed_in_window, |
| 444 | 5781 0, 0, 0); |
| 5782 } |