Mercurial > hg > xemacs-beta
annotate src/window.c @ 5170:5ddbab03b0e6
various fixes to memory-usage stats
-------------------- ChangeLog entries follow: --------------------
lisp/ChangeLog addition:
2010-03-25 Ben Wing <ben@xemacs.org>
* diagnose.el (show-memory-usage):
* diagnose.el (show-object-memory-usage-stats):
Further changes to correspond with changes in the C code;
add an additional column in show-object-memory-usage-stats showing
the ancillary Lisp overhead used with each type; shrink columns for
windows in show-memory-usage to get it to fit in 79 chars.
src/ChangeLog addition:
2010-03-25 Ben Wing <ben@xemacs.org>
* alloc.c:
* alloc.c (struct):
* alloc.c (finish_object_memory_usage_stats):
* alloc.c (object_memory_usage_stats):
* alloc.c (Fobject_memory_usage):
* alloc.c (lisp_object_memory_usage_full):
* alloc.c (compute_memusage_stats_length):
* lrecord.h:
* lrecord.h (struct lrecord_implementation):
Add fields to the `lrecord_implementation' structure to list an
offset into the array of extra statistics in a
`struct generic_usage_stats' and a length, listing the first slice
of ancillary Lisp-object memory. Compute automatically in
compute_memusage_stats_length(). Use to add an entry
`FOO-lisp-ancillary-storage' for object type FOO.
Don't crash when an int or char is given to object-memory-usage,
signal an error instead.
Add functions lisp_object_memory_usage_full() and
lisp_object_memory_usage() to compute the total memory usage of an
object (sum of object, non-Lisp attached, and Lisp ancillary
memory).
* array.c:
* array.c (gap_array_memory_usage):
* array.h:
Add function to return memory usage of a gap array.
* buffer.c (struct buffer_stats):
* buffer.c (compute_buffer_usage):
* buffer.c (vars_of_buffer):
* extents.c (compute_buffer_extent_usage):
* marker.c:
* marker.c (compute_buffer_marker_usage):
* extents.h:
* lisp.h:
Remove `struct usage_stats' arg from compute_buffer_marker_usage()
and compute_buffer_extent_usage() -- these are ancillary Lisp
objects and don't get accumulated into `struct usage_stats';
change the value of `memusage_stats_list' so that `markers' and
`extents' memory is in Lisp-ancillary, where it belongs.
In compute_buffer_marker_usage(), use lisp_object_memory_usage()
rather than lisp_object_storage_size().
* casetab.c:
* casetab.c (case_table_memory_usage):
* casetab.c (vars_of_casetab):
* emacs.c (main_1):
Add memory usage stats for case tables.
* lisp.h:
Add comment explaining the `struct generic_usage_stats' more,
as well as the new fields in lrecord_implementation.
* console-impl.h:
* console-impl.h (struct console_methods):
* scrollbar-gtk.c:
* scrollbar-gtk.c (gtk_compute_scrollbar_instance_usage):
* scrollbar-msw.c:
* scrollbar-msw.c (mswindows_compute_scrollbar_instance_usage):
* scrollbar-x.c:
* scrollbar-x.c (x_compute_scrollbar_instance_usage):
* scrollbar.c:
* scrollbar.c (struct scrollbar_instance_stats):
* scrollbar.c (compute_all_scrollbar_instance_usage):
* scrollbar.c (scrollbar_instance_memory_usage):
* scrollbar.c (scrollbar_objects_create):
* scrollbar.c (vars_of_scrollbar):
* scrollbar.h:
* symsinit.h:
* window.c:
* window.c (find_window_mirror_maybe):
* window.c (struct window_mirror_stats):
* window.c (compute_window_mirror_usage):
* window.c (window_mirror_memory_usage):
* window.c (compute_window_usage):
* window.c (window_objects_create):
* window.c (syms_of_window):
* window.c (vars_of_window):
Redo memory-usage associated with windows, window mirrors, and
scrollbar instances. Should fix crash in find_window_mirror,
among other things. Properly assign memo ry to object memory,
non-Lisp extra memory, and Lisp ancillary memory. For example,
redisplay structures are non-Lisp memory hanging off a window
mirror, not a window; make it an ancillary Lisp-object field.
Window mirrors and scrollbar instances have their own statistics,
among other things.
| author | Ben Wing <ben@xemacs.org> |
|---|---|
| date | Thu, 25 Mar 2010 06:07:25 -0500 |
| parents | 1fae11d56ad2 |
| children | 8cd17b2131a1 |
| rev | line source |
|---|---|
| 428 | 1 /* Window creation, deletion and examination for XEmacs. |
| 2 Copyright (C) 1985-1987, 1992-1995 Free Software Foundation, Inc. | |
| 3 Copyright (C) 1994, 1995 Board of Trustees, University of Illinois. | |
| 5043 | 4 Copyright (C) 1995, 1996, 2002, 2010 Ben Wing. |
| 428 | 5 Copyright (C) 1996 Chuck Thompson. |
| 6 | |
| 7 This file is part of XEmacs. | |
| 8 | |
| 9 XEmacs is free software; you can redistribute it and/or modify it | |
| 10 under the terms of the GNU General Public License as published by the | |
| 11 Free Software Foundation; either version 2, or (at your option) any | |
| 12 later version. | |
| 13 | |
| 14 XEmacs is distributed in the hope that it will be useful, but WITHOUT | |
| 15 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 17 for more details. | |
| 18 | |
| 19 You should have received a copy of the GNU General Public License | |
| 20 along with XEmacs; see the file COPYING. If not, write to | |
| 21 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 22 Boston, MA 02111-1307, USA. */ | |
| 23 | |
| 24 /* Synched up with: FSF 19.30. */ | |
| 25 /* Beginning to diverge significantly. */ | |
| 26 | |
| 853 | 27 /* Authorship: |
| 28 | |
| 29 Based on code from pre-release FSF 19, c. 1991. | |
| 30 Significantly reworked by Chuck Thompson, 1993-1996. | |
| 31 window mirror stuff added by Chuck Thompson c. 1993. | |
| 32 various cleanup by Ben Wing c. 1995 (window slots, window init code, | |
| 33 memory usage, synch. up to FSF 19.30, other). | |
| 34 Unknown work by Andy Piper. | |
| 35 new window-width/height fns. by Ben Wing, Mar 2000. */ | |
| 36 | |
| 428 | 37 /* This file has been Mule-ized. */ |
| 38 | |
| 39 #include <config.h> | |
| 40 #include "lisp.h" | |
| 41 | |
| 42 #include "buffer.h" | |
| 800 | 43 #include "commands.h" |
| 872 | 44 #include "device-impl.h" |
| 800 | 45 #include "elhash.h" |
| 428 | 46 #include "faces.h" |
| 872 | 47 #include "frame-impl.h" |
| 800 | 48 #include "glyphs.h" |
| 49 #include "gutter.h" | |
| 428 | 50 #include "objects.h" |
| 51 #include "redisplay.h" | |
| 872 | 52 #include "window-impl.h" |
| 428 | 53 |
| 1149 | 54 Lisp_Object Qwindowp, Qwindow_live_p; |
| 428 | 55 Lisp_Object Qdisplay_buffer; |
| 56 | |
| 57 #ifdef MEMORY_USAGE_STATS | |
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58 Lisp_Object Qface_cache, Qglyph_cache, Qline_start_cache, Qredisplay_structs; |
| 428 | 59 #ifdef HAVE_SCROLLBARS |
| 60 Lisp_Object Qscrollbar_instances; | |
| 61 #endif | |
| 62 #endif | |
| 63 | |
| 1979 | 64 extern int allow_deletion_of_last_visible_frame; |
| 65 | |
| 428 | 66 EXFUN (Fnext_window, 4); |
| 67 | |
| 68 static int window_pixel_width_to_char_width (struct window *w, | |
| 69 int pixel_width, | |
| 70 int include_margins_p); | |
| 71 static int window_char_width_to_pixel_width (struct window *w, | |
| 72 int char_width, | |
| 73 int include_margins_p); | |
| 74 static int window_pixel_height_to_char_height (struct window *w, | |
| 75 int pixel_height, | |
| 76 int include_gutters_p); | |
| 77 static int window_char_height_to_pixel_height (struct window *w, | |
| 78 int char_height, | |
| 79 int include_gutters_p); | |
| 444 | 80 static void change_window_height (Lisp_Object window, int delta, |
| 81 Lisp_Object horizontalp, int inpixels); | |
| 428 | 82 |
| 83 /* Thickness of shadow border around 3d modelines. */ | |
| 84 Lisp_Object Vmodeline_shadow_thickness; | |
| 85 | |
| 86 /* Whether vertical dividers are draggable and displayed */ | |
| 87 Lisp_Object Vvertical_divider_always_visible_p; | |
| 88 | |
| 89 /* Whether a modeline should be displayed. */ | |
| 90 Lisp_Object Vhas_modeline_p; | |
| 91 | |
| 92 /* Thickness of shadow border around vertical dividers. */ | |
| 93 Lisp_Object Vvertical_divider_shadow_thickness; | |
| 94 | |
| 95 /* Divider surface width (not counting 3-d borders) */ | |
| 96 Lisp_Object Vvertical_divider_line_width; | |
| 97 | |
| 442 | 98 /* Spacing between outer edge of divider border and window edge */ |
| 428 | 99 Lisp_Object Vvertical_divider_spacing; |
| 100 | |
| 101 /* How much to scroll by per-line. */ | |
| 102 Lisp_Object Vwindow_pixel_scroll_increment; | |
| 103 | |
| 104 /* Scroll if point lands on the bottom line and that line is partially | |
| 105 clipped. */ | |
| 106 int scroll_on_clipped_lines; | |
| 107 | |
| 108 /* The minibuffer window of the selected frame. | |
| 109 Note that you cannot test for minibufferness of an arbitrary window | |
| 110 by comparing against this; but you can test for minibufferness of | |
| 111 the selected window. */ | |
| 112 Lisp_Object minibuf_window; | |
| 113 | |
| 114 /* Non-nil means it is the window for C-M-v to scroll | |
| 115 when the minibuffer is selected. */ | |
| 116 Lisp_Object Vminibuffer_scroll_window; | |
| 117 | |
| 118 /* Non-nil means this is the buffer whose window C-M-v should scroll. */ | |
| 119 Lisp_Object Vother_window_scroll_buffer; | |
| 120 | |
| 121 /* Non-nil means it's the function to call to display temp buffers. */ | |
| 122 Lisp_Object Vtemp_buffer_show_function; | |
| 123 | |
| 124 /* If a window gets smaller than either of these, it is removed. */ | |
| 458 | 125 Fixnum window_min_height; |
| 126 Fixnum window_min_width; | |
| 428 | 127 |
| 128 /* Number of lines of continuity in scrolling by screenfuls. */ | |
| 458 | 129 Fixnum next_screen_context_lines; |
| 428 | 130 |
| 1149 | 131 Lisp_Object Qcurrent_window_configuration, Qset_window_configuration; |
| 428 | 132 |
| 707 | 133 Lisp_Object Qtruncate_partial_width_windows; |
| 134 | |
| 428 | 135 #define SET_LAST_MODIFIED(w, cache_too) \ |
| 136 do { \ | |
| 137 (w)->last_modified[CURRENT_DISP] = Qzero; \ | |
| 138 (w)->last_modified[DESIRED_DISP] = Qzero; \ | |
| 139 (w)->last_modified[CMOTION_DISP] = Qzero; \ | |
| 140 if (cache_too) \ | |
| 141 (w)->line_cache_last_updated = Qzero; \ | |
| 142 } while (0) | |
| 143 | |
| 144 #define SET_LAST_FACECHANGE(w) \ | |
| 145 do { \ | |
| 146 (w)->last_facechange[CURRENT_DISP] = Qzero; \ | |
| 147 (w)->last_facechange[DESIRED_DISP] = Qzero; \ | |
| 148 (w)->last_facechange[CMOTION_DISP] = Qzero; \ | |
| 149 } while (0) | |
| 150 | |
| 151 | |
| 1204 | 152 |
| 153 static const struct memory_description int_description_1[] = { | |
| 154 { XD_END } | |
| 155 }; | |
| 156 | |
| 157 static const struct sized_memory_description int_description = { | |
| 158 sizeof (int), | |
| 159 int_description_1 | |
| 160 }; | |
| 161 | |
| 162 static const struct memory_description int_dynarr_description_1[] = { | |
| 163 XD_DYNARR_DESC (int_dynarr, &int_description), | |
| 164 { XD_END } | |
| 165 }; | |
| 166 | |
| 167 static const struct sized_memory_description int_dynarr_description = { | |
| 168 sizeof (int_dynarr), | |
| 169 int_dynarr_description_1 | |
| 170 }; | |
| 171 | |
| 172 static const struct memory_description face_cachel_description_1[] = { | |
| 2367 | 173 { XD_BLOCK_PTR, offsetof (face_cachel, merged_faces), |
| 2551 | 174 1, { &int_dynarr_description } }, |
| 1204 | 175 { XD_LISP_OBJECT, offsetof (face_cachel, face) }, |
| 176 { XD_LISP_OBJECT, offsetof (face_cachel, foreground) }, | |
| 177 { XD_LISP_OBJECT, offsetof (face_cachel, background) }, | |
| 178 { XD_LISP_OBJECT_ARRAY, offsetof (face_cachel, font), NUM_LEADING_BYTES }, | |
| 179 { XD_LISP_OBJECT, offsetof (face_cachel, display_table) }, | |
| 180 { XD_LISP_OBJECT, offsetof (face_cachel, background_pixmap) }, | |
| 181 { XD_END } | |
| 182 }; | |
| 183 | |
| 3092 | 184 #ifdef NEW_GC |
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185 DEFINE_DUMPABLE_INTERNAL_LISP_OBJECT ("face-cachel", face_cachel, |
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186 0, face_cachel_description_1, |
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187 Lisp_Face_Cachel); |
| 3092 | 188 #endif /* NEW_GC */ |
| 189 | |
| 1204 | 190 static const struct sized_memory_description face_cachel_description = { |
| 191 sizeof (face_cachel), | |
| 192 face_cachel_description_1 | |
| 193 }; | |
| 194 | |
| 195 static const struct memory_description face_cachel_dynarr_description_1[] = { | |
| 3092 | 196 #ifdef NEW_GC |
| 197 XD_LISP_DYNARR_DESC (face_cachel_dynarr, &face_cachel_description), | |
| 198 #else /* not NEW_GC */ | |
| 1204 | 199 XD_DYNARR_DESC (face_cachel_dynarr, &face_cachel_description), |
| 3092 | 200 #endif /* not NEW_GC */ |
| 1204 | 201 { XD_END } |
| 202 }; | |
| 203 | |
| 3092 | 204 #ifdef NEW_GC |
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205 DEFINE_DUMPABLE_INTERNAL_LISP_OBJECT ("face-cachel-dynarr", face_cachel_dynarr, |
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206 0, face_cachel_dynarr_description_1, |
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207 face_cachel_dynarr); |
| 3092 | 208 #else /* not NEW_GC */ |
| 1204 | 209 static const struct sized_memory_description face_cachel_dynarr_description = { |
| 210 sizeof (face_cachel_dynarr), | |
| 211 face_cachel_dynarr_description_1 | |
| 212 }; | |
| 3092 | 213 #endif /* not NEW_GC */ |
| 1204 | 214 |
| 215 static const struct memory_description glyph_cachel_description_1[] = { | |
| 216 { XD_LISP_OBJECT, offsetof (glyph_cachel, glyph) }, | |
| 217 { XD_END } | |
| 218 }; | |
| 219 | |
| 3092 | 220 #ifdef NEW_GC |
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221 DEFINE_DUMPABLE_INTERNAL_LISP_OBJECT ("glyph-cachel", glyph_cachel, |
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222 0, glyph_cachel_description_1, |
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223 Lisp_Glyph_Cachel); |
| 3092 | 224 #endif /* NEW_GC */ |
| 225 | |
| 1204 | 226 static const struct sized_memory_description glyph_cachel_description = { |
| 227 sizeof (glyph_cachel), | |
| 228 glyph_cachel_description_1 | |
| 229 }; | |
| 230 | |
| 231 static const struct memory_description glyph_cachel_dynarr_description_1[] = { | |
| 3092 | 232 #ifdef NEW_GC |
| 233 XD_LISP_DYNARR_DESC (glyph_cachel_dynarr, &glyph_cachel_description), | |
| 234 #else /* not NEW_GC */ | |
| 1204 | 235 XD_DYNARR_DESC (glyph_cachel_dynarr, &glyph_cachel_description), |
| 3092 | 236 #endif /* not NEW_GC */ |
| 1204 | 237 { XD_END } |
| 238 }; | |
| 239 | |
| 3092 | 240 #ifdef NEW_GC |
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241 DEFINE_DUMPABLE_INTERNAL_LISP_OBJECT ("glyph-cachel-dynarr", |
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242 glyph_cachel_dynarr, 0, |
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243 glyph_cachel_dynarr_description_1, |
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244 glyph_cachel_dynarr); |
| 3092 | 245 #else /* not NEW_GC */ |
| 1204 | 246 static const struct sized_memory_description glyph_cachel_dynarr_description = { |
| 247 sizeof (glyph_cachel_dynarr), | |
| 248 glyph_cachel_dynarr_description_1 | |
| 249 }; | |
| 3092 | 250 #endif /* not NEW_GC */ |
| 1204 | 251 |
| 252 static const struct memory_description line_start_cache_description_1[] = { | |
| 253 { XD_END } | |
| 254 }; | |
| 255 | |
| 256 static const struct sized_memory_description line_start_cache_description = { | |
| 257 sizeof (line_start_cache), | |
| 258 line_start_cache_description_1 | |
| 259 }; | |
| 260 | |
| 261 static const struct memory_description line_start_cache_dynarr_description_1[] = { | |
| 262 XD_DYNARR_DESC (line_start_cache_dynarr, &line_start_cache_description), | |
| 263 { XD_END } | |
| 264 }; | |
| 265 | |
| 266 static const struct sized_memory_description line_start_cache_dynarr_description = { | |
| 267 sizeof (line_start_cache_dynarr), | |
| 268 line_start_cache_dynarr_description_1 | |
| 269 }; | |
| 270 | |
| 271 static const struct memory_description window_description [] = { | |
| 272 #define WINDOW_SLOT(slot) { XD_LISP_OBJECT, offsetof (struct window, slot) }, | |
| 273 #define WINDOW_SLOT_ARRAY(slot, size) \ | |
| 274 { XD_LISP_OBJECT_ARRAY, offsetof (struct window, slot), size }, | |
| 275 #include "winslots.h" | |
| 276 | |
| 3092 | 277 #ifdef NEW_GC |
| 278 { XD_LISP_OBJECT, offsetof (struct window, face_cachels) }, | |
| 279 { XD_LISP_OBJECT, offsetof (struct window, glyph_cachels) }, | |
| 280 #else /* not NEW_GC */ | |
| 2367 | 281 { XD_BLOCK_PTR, offsetof (struct window, face_cachels), |
| 2551 | 282 1, { &face_cachel_dynarr_description } }, |
| 2367 | 283 { XD_BLOCK_PTR, offsetof (struct window, glyph_cachels), |
| 2551 | 284 1, { &glyph_cachel_dynarr_description } }, |
| 3092 | 285 #endif /* not NEW_GC */ |
| 2367 | 286 { XD_BLOCK_PTR, offsetof (struct window, line_start_cache), |
| 2775 | 287 1, { &line_start_cache_dynarr_description }, XD_FLAG_NO_KKCC }, |
| 1204 | 288 { XD_END } |
| 289 }; | |
| 428 | 290 |
| 291 static Lisp_Object | |
| 292 mark_window (Lisp_Object obj) | |
| 293 { | |
| 294 struct window *window = XWINDOW (obj); | |
| 295 | |
| 296 mark_face_cachels (window->face_cachels); | |
| 297 mark_glyph_cachels (window->glyph_cachels); | |
| 298 | |
| 617 | 299 #define WINDOW_SLOT(slot) mark_object (window->slot); |
| 428 | 300 #include "winslots.h" |
| 301 | |
| 302 return Qnil; | |
| 303 } | |
| 304 | |
| 305 static void | |
| 2286 | 306 print_window (Lisp_Object obj, Lisp_Object printcharfun, |
| 307 int UNUSED (escapeflag)) | |
| 428 | 308 { |
| 4846 | 309 Lisp_Object buf; |
| 310 | |
| 428 | 311 if (print_readably) |
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312 printing_unreadable_lisp_object (obj, 0); |
| 428 | 313 |
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314 write_ascstring (printcharfun, "#<window"); |
| 4846 | 315 buf = XWINDOW_BUFFER (obj); |
| 316 if (EQ (buf, Qt)) | |
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317 write_ascstring (printcharfun, " during creation"); |
| 4846 | 318 else if (!NILP (buf)) |
| 428 | 319 { |
| 4846 | 320 |
| 321 Lisp_Object name = XBUFFER (buf)->name; | |
| 800 | 322 write_fmt_string_lisp (printcharfun, " on %S", 1, name); |
| 428 | 323 } |
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324 write_fmt_string (printcharfun, " 0x%x>", LISP_OBJECT_UID (obj)); |
| 428 | 325 } |
| 326 | |
| 327 static void | |
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328 finalize_window (Lisp_Object obj) |
| 428 | 329 { |
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330 struct window *w = XWINDOW (obj); |
| 428 | 331 |
| 332 if (w->line_start_cache) | |
| 333 { | |
| 334 Dynarr_free (w->line_start_cache); | |
| 335 w->line_start_cache = 0; | |
| 336 } | |
| 337 | |
| 338 if (w->face_cachels) | |
| 339 { | |
| 340 int i; | |
| 341 | |
| 342 for (i = 0; i < Dynarr_length (w->face_cachels); i++) | |
| 343 { | |
| 344 struct face_cachel *cachel = Dynarr_atp (w->face_cachels, i); | |
| 345 if (cachel->merged_faces) | |
| 346 { | |
| 347 Dynarr_free (cachel->merged_faces); | |
| 348 cachel->merged_faces = 0; | |
| 349 } | |
| 350 } | |
| 351 Dynarr_free (w->face_cachels); | |
| 352 w->face_cachels = 0; | |
| 353 } | |
| 354 | |
| 355 if (w->glyph_cachels) | |
| 356 { | |
| 357 Dynarr_free (w->glyph_cachels); | |
| 358 w->glyph_cachels = 0; | |
| 359 } | |
| 360 } | |
| 361 | |
| 844 | 362 /* These caches map buffers to markers. They are key-weak so that entries |
| 363 remain around as long as the buffers do. */ | |
| 364 | |
| 365 static Lisp_Object | |
| 366 make_saved_buffer_point_cache (void) | |
| 367 { | |
| 368 return make_lisp_hash_table (20, HASH_TABLE_KEY_WEAK, HASH_TABLE_EQ); | |
| 369 } | |
| 370 | |
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371 DEFINE_NODUMP_LISP_OBJECT ("window", window, |
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372 mark_window, print_window, finalize_window, |
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373 0, 0, window_description, struct window); |
| 428 | 374 |
| 375 #define INIT_DISP_VARIABLE(field, initialization) \ | |
| 376 p->field[CURRENT_DISP] = initialization; \ | |
| 377 p->field[DESIRED_DISP] = initialization; \ | |
| 378 p->field[CMOTION_DISP] = initialization; | |
| 379 | |
| 380 /* We have an implicit assertion that the first two elements (default | |
| 381 and modeline faces) are always present in the face_element_cache. | |
| 382 Normally redisplay ensures this. However, it is possible for a | |
| 383 window to get created and functions which reference these values | |
| 384 called before redisplay works with the window for the first time. | |
| 385 All callers of allocate_window should therefore call | |
| 386 reset_face_cachels on the created window. We can't do it | |
| 387 here because the window must have its frame pointer set or | |
| 388 reset_face_cachels will fail. */ | |
| 389 Lisp_Object | |
| 390 allocate_window (void) | |
| 391 { | |
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392 Lisp_Object obj = ALLOC_NORMAL_LISP_OBJECT (window); |
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393 struct window *p = XWINDOW (obj); |
| 617 | 394 |
| 395 #define WINDOW_SLOT(slot) p->slot = Qnil; | |
| 396 #include "winslots.h" | |
| 397 | |
| 428 | 398 INIT_DISP_VARIABLE (start, Fmake_marker ()); |
| 399 INIT_DISP_VARIABLE (pointm, Fmake_marker ()); | |
| 400 p->sb_point = Fmake_marker (); | |
| 844 | 401 p->saved_point_cache = make_saved_buffer_point_cache (); |
| 402 p->saved_last_window_start_cache = make_saved_buffer_point_cache (); | |
| 428 | 403 p->use_time = Qzero; |
| 404 INIT_DISP_VARIABLE (last_modified, Qzero); | |
| 405 INIT_DISP_VARIABLE (last_point, Fmake_marker ()); | |
| 406 INIT_DISP_VARIABLE (last_start, Fmake_marker ()); | |
| 407 INIT_DISP_VARIABLE (last_facechange, Qzero); | |
| 3092 | 408 #ifdef NEW_GC |
| 409 p->face_cachels = Dynarr_lisp_new (face_cachel, | |
| 410 &lrecord_face_cachel_dynarr, | |
| 411 &lrecord_face_cachel); | |
| 412 p->glyph_cachels = Dynarr_lisp_new (glyph_cachel, | |
| 413 &lrecord_glyph_cachel_dynarr, | |
| 414 &lrecord_glyph_cachel); | |
| 415 #else /* not NEW_GC */ | |
| 428 | 416 p->face_cachels = Dynarr_new (face_cachel); |
| 417 p->glyph_cachels = Dynarr_new (glyph_cachel); | |
| 3092 | 418 #endif /* not NEW_GC */ |
| 428 | 419 p->line_start_cache = Dynarr_new (line_start_cache); |
| 450 | 420 p->subwindow_instance_cache = make_image_instance_cache_hash_table (); |
| 421 | |
| 428 | 422 p->line_cache_last_updated = Qzero; |
| 442 | 423 |
| 428 | 424 p->windows_changed = 1; |
| 425 p->shadow_thickness_changed = 1; | |
| 426 | |
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427 return obj; |
| 428 | 428 } |
| 429 #undef INIT_DISP_VARIABLE | |
| 430 | |
| 617 | 431 /************************************************************************/ |
| 432 /* Window mirror structure */ | |
| 433 /************************************************************************/ | |
| 434 | |
| 428 | 435 /* |
| 436 * The redisplay structures used to be stored with each window. While | |
| 437 * they are logically something associated with frames they can't be | |
| 438 * stored there with a redisplay which handles variable height lines. | |
| 439 * Lines in horizontally split windows might not line up. So they get | |
| 440 * stored with the windows. | |
| 441 * | |
| 442 * The problem with this is window configurations. When restoring a | |
| 443 * window configuration it now becomes problematic to do an | |
| 444 * incremental redisplay. The solution is to store the redisplay | |
| 445 * structures with the frame as they should be but laid out in the | |
| 446 * same manner as the window structure. Thus is born the window | |
| 447 * mirror. | |
| 448 * | |
| 449 * It also becomes a convenient place to stick scrollbar instances | |
| 450 * since they extrapolate out to having the same problem described for | |
| 451 * the display structures. | |
| 452 */ | |
| 453 | |
| 617 | 454 /* NOTE: The window-mirror structure formerly was not a Lisp object, and |
| 455 marking was handled specially. I've gotten recurring crashes, however, | |
| 456 using the mouse wheel under Windows, where either the window mirror | |
| 457 accessed through a scrollbar instance, or the frame pointed to by that | |
| 458 window mirror, gets garbaged. Things are tricky under windows because | |
| 459 the scrollbar instances are stored in HWND-specific data. Furthermore, | |
| 460 we have scrollbar-instance caches to complicate things. Both of these | |
| 461 make it very difficult (for me at least, not being intimately familiar | |
| 462 with the redisplay code) to track exactly when and where a particular | |
| 463 window mirror or scrollbar instance has pointers to it, or whether a | |
| 464 window mirror might have a dead frame or buffer in it (i.e. not | |
| 465 necessarily gc-protected by being on a global list). By far the safest | |
| 466 thing, then, is to make both structures Lisp objects and not explicitly | |
| 467 xfree() them. This should make no practical difference in memory usage | |
| 468 because neither structure is created very often (only when windows are | |
| 469 created or deleted). --ben */ | |
| 470 | |
| 1204 | 471 static const struct memory_description window_mirror_description [] = { |
| 472 { XD_LISP_OBJECT, offsetof (struct window_mirror, frame) }, | |
| 473 { XD_LISP_OBJECT, offsetof (struct window_mirror, next) }, | |
| 474 { XD_LISP_OBJECT, offsetof (struct window_mirror, hchild) }, | |
| 475 { XD_LISP_OBJECT, offsetof (struct window_mirror, vchild) }, | |
| 476 | |
| 2367 | 477 { XD_BLOCK_PTR, offsetof (struct window_mirror, current_display_lines), |
| 2551 | 478 1, { &display_line_dynarr_description } }, |
| 2367 | 479 { XD_BLOCK_PTR, offsetof (struct window_mirror, desired_display_lines), |
| 2551 | 480 1, { &display_line_dynarr_description } }, |
| 1204 | 481 |
| 482 { XD_LISP_OBJECT, offsetof (struct window_mirror, buffer) }, | |
| 483 | |
| 484 #ifdef HAVE_SCROLLBARS | |
| 485 { XD_LISP_OBJECT, offsetof (struct window_mirror, | |
| 486 scrollbar_vertical_instance) }, | |
| 487 { XD_LISP_OBJECT, offsetof (struct window_mirror, | |
| 488 scrollbar_horizontal_instance) }, | |
| 489 #endif /* HAVE_SCROLLBARS */ | |
| 490 | |
| 934 | 491 { XD_END } |
| 492 }; | |
| 493 | |
| 617 | 494 static Lisp_Object |
| 495 mark_window_mirror (Lisp_Object obj) | |
| 496 { | |
| 497 struct window_mirror *mir = XWINDOW_MIRROR (obj); | |
| 498 | |
| 499 if (mir->current_display_lines) | |
| 500 mark_redisplay_structs (mir->current_display_lines); | |
| 501 if (mir->desired_display_lines) | |
| 502 mark_redisplay_structs (mir->desired_display_lines); | |
| 503 | |
| 504 if (mir->hchild) | |
| 505 mark_object (wrap_window_mirror (mir->hchild)); | |
| 506 if (mir->vchild) | |
| 507 mark_object (wrap_window_mirror (mir->vchild)); | |
| 508 | |
| 509 if (mir->frame) | |
| 510 mark_object (wrap_frame (mir->frame)); | |
| 511 if (mir->buffer) | |
| 512 mark_object (wrap_buffer (mir->buffer)); | |
| 513 | |
| 514 #ifdef HAVE_SCROLLBARS | |
| 515 if (mir->scrollbar_vertical_instance) | |
| 516 mark_object (wrap_scrollbar_instance (mir->scrollbar_vertical_instance)); | |
| 517 if (mir->scrollbar_horizontal_instance) | |
| 518 mark_object (wrap_scrollbar_instance (mir->scrollbar_horizontal_instance)); | |
| 519 #endif /* HAVE_SCROLLBARS */ | |
| 520 if (mir->next) | |
| 521 return wrap_window_mirror (mir->next); | |
| 522 else | |
| 523 return Qnil; | |
| 524 } | |
| 525 | |
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526 DEFINE_NODUMP_INTERNAL_LISP_OBJECT ("window-mirror", window_mirror, |
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527 mark_window_mirror, |
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528 window_mirror_description, |
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529 struct window_mirror); |
| 617 | 530 |
| 428 | 531 /* Create a new window mirror structure and associated redisplay |
| 532 structs. */ | |
| 533 static struct window_mirror * | |
| 534 new_window_mirror (struct frame *f) | |
| 535 { | |
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536 Lisp_Object obj = ALLOC_NORMAL_LISP_OBJECT (window_mirror); |
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537 struct window_mirror *t = XWINDOW_MIRROR (obj); |
| 428 | 538 |
| 539 t->frame = f; | |
| 540 t->current_display_lines = Dynarr_new (display_line); | |
| 541 t->desired_display_lines = Dynarr_new (display_line); | |
| 542 | |
| 543 return t; | |
| 544 } | |
| 545 | |
| 546 /* Synchronize the mirror structure with a given window structure. | |
| 547 This is normally called from update_frame_window_mirror with a | |
| 548 starting window of f->root_window. */ | |
| 549 static struct window_mirror * | |
| 550 update_mirror_internal (Lisp_Object win, struct window_mirror *mir) | |
| 551 { | |
| 552 if (NILP (win)) | |
| 553 { | |
| 554 if (mir) | |
| 555 { | |
| 556 free_window_mirror (mir); | |
| 557 mir = NULL; | |
| 558 } | |
| 559 return mir; | |
| 560 } | |
| 561 else | |
| 562 if (!mir) | |
| 563 mir = new_window_mirror (XFRAME (XWINDOW (win)->frame)); | |
| 564 | |
| 1204 | 565 mir->next = update_mirror_internal (XWINDOW (win)->next, mir->next); |
| 428 | 566 mir->hchild = update_mirror_internal (XWINDOW (win)->hchild, mir->hchild); |
| 567 mir->vchild = update_mirror_internal (XWINDOW (win)->vchild, mir->vchild); | |
| 568 | |
| 569 /* | |
| 570 * If the redisplay structs are not empty and the mirror has | |
| 571 * children, then this mirror structure was formerly being used for | |
| 572 * display but is no longer. Reset its current display structs so | |
| 573 * that redisplay doesn't accidentally think they are accurate if it | |
| 574 * is later used for display purposes once again. Also, mark the | |
| 575 * scrollbar instance as not active. | |
| 576 */ | |
| 577 if (mir->vchild || mir->hchild) | |
| 578 { | |
| 579 /* The redisplay structures are big. Leaving them around in | |
| 580 non-leaf windows can add up to a lot of wasted space. So | |
| 581 don't do it. */ | |
| 582 free_display_structs (mir); | |
| 583 mir->current_display_lines = Dynarr_new (display_line); | |
| 584 mir->desired_display_lines = Dynarr_new (display_line); | |
| 585 | |
| 586 #ifdef HAVE_SCROLLBARS | |
| 587 update_window_scrollbars (XWINDOW (win), mir, 0, 0); | |
| 588 #endif | |
| 589 mir->buffer = NULL; | |
| 590 } | |
| 591 | |
| 592 return mir; | |
| 593 } | |
| 594 | |
| 595 /* Given a window mirror, determine which real window it contains the | |
| 596 redisplay structures for. */ | |
| 597 static Lisp_Object | |
| 598 real_window_internal (Lisp_Object win, struct window_mirror *rmir, | |
| 599 struct window_mirror *mir) | |
| 600 { | |
| 601 for (; !NILP (win) && rmir ; win = XWINDOW (win)->next, rmir = rmir->next) | |
| 602 { | |
| 603 if (mir == rmir) | |
| 604 return win; | |
| 605 if (!NILP (XWINDOW (win)->vchild)) | |
| 606 { | |
| 607 Lisp_Object retval = | |
| 608 real_window_internal (XWINDOW (win)->vchild, rmir->vchild, mir); | |
| 609 if (!NILP (retval)) | |
| 610 return retval; | |
| 611 } | |
| 612 if (!NILP (XWINDOW (win)->hchild)) | |
| 613 { | |
| 614 Lisp_Object retval = | |
| 615 real_window_internal (XWINDOW (win)->hchild, rmir->hchild, mir); | |
| 616 if (!NILP (retval)) | |
| 617 return retval; | |
| 618 } | |
| 619 } | |
| 620 | |
| 621 return Qnil; | |
| 622 } | |
| 623 | |
| 624 /* Given a real window, find the mirror structure which contains its | |
| 625 redisplay structures. */ | |
| 626 static struct window_mirror * | |
| 627 find_window_mirror_internal (Lisp_Object win, struct window_mirror *rmir, | |
| 628 struct window *w) | |
| 629 { | |
| 630 for (; !NILP (win); win = XWINDOW (win)->next, rmir = rmir->next) | |
| 631 { | |
| 632 if (w == XWINDOW (win)) | |
| 633 return rmir; | |
| 634 | |
| 635 if (!NILP (XWINDOW (win)->vchild)) | |
| 636 { | |
| 637 struct window_mirror *retval = | |
| 638 find_window_mirror_internal (XWINDOW (win)->vchild, | |
| 639 rmir->vchild, w); | |
| 640 if (retval) return retval; | |
| 641 } | |
| 642 | |
| 643 if (!NILP (XWINDOW (win)->hchild)) | |
| 644 { | |
| 645 struct window_mirror *retval = | |
| 646 find_window_mirror_internal (XWINDOW (win)->hchild, | |
| 647 rmir->hchild, w); | |
| 648 if (retval) return retval; | |
| 649 } | |
| 650 } | |
| 651 | |
| 652 return 0; | |
| 653 } | |
| 654 | |
| 655 /* Update the mirror structure for the given frame. */ | |
| 656 void | |
| 657 update_frame_window_mirror (struct frame *f) | |
| 658 { | |
| 617 | 659 f->root_mirror = |
| 660 wrap_window_mirror (update_mirror_internal | |
| 661 (f->root_window, | |
| 662 NILP (f->root_mirror) ? 0 : | |
| 663 XWINDOW_MIRROR (f->root_mirror))); | |
| 428 | 664 f->mirror_dirty = 0; |
| 665 } | |
| 666 | |
| 667 /* Free a given mirror structure along with all of its children as | |
| 668 well as their associated display structures. */ | |
| 669 void | |
| 670 free_window_mirror (struct window_mirror *mir) | |
| 671 { | |
| 672 while (mir) | |
| 673 { | |
| 674 if (mir->hchild) free_window_mirror (mir->hchild); | |
| 675 if (mir->vchild) free_window_mirror (mir->vchild); | |
| 676 #ifdef HAVE_SCROLLBARS | |
| 677 release_window_mirror_scrollbars (mir); | |
| 678 #endif | |
| 679 free_display_structs (mir); | |
| 680 mir = mir->next; | |
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681 /* not worth calling free_normal_lisp_object() -- window mirrors |
| 617 | 682 are not created that frequently and it's dangerous. we don't |
| 683 know for sure that there aren't other pointers around -- e.g. | |
| 684 in a scrollbar instance. */ | |
| 428 | 685 } |
| 686 } | |
| 687 | |
| 688 /* Given a mirror structure, return the window it mirrors. Calls | |
| 689 real_window_internal to do most of the work. */ | |
| 690 Lisp_Object | |
| 691 real_window (struct window_mirror *mir, int no_abort) | |
| 692 { | |
| 617 | 693 Lisp_Object retval = |
| 694 real_window_internal (mir->frame->root_window, | |
| 695 XWINDOW_MIRROR (mir->frame->root_mirror), mir); | |
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696 assert (!NILP (retval) || no_abort); |
| 428 | 697 |
| 698 return retval; | |
| 699 } | |
| 700 | |
| 701 /* Given a real window, return its mirror structure. Calls | |
| 702 find_window_mirror_internal to do all of the work. */ | |
| 703 struct window_mirror * | |
| 704 find_window_mirror (struct window *w) | |
| 705 { | |
| 706 struct frame *f = XFRAME (w->frame); | |
| 707 if (f->mirror_dirty) | |
| 708 update_frame_window_mirror (f); | |
| 617 | 709 return find_window_mirror_internal (f->root_window, |
| 710 XWINDOW_MIRROR (f->root_mirror), w); | |
| 428 | 711 } |
| 712 | |
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713 /* Given a real window, return its mirror structure, if it exists. |
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714 Don't do any updating. */ |
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715 static struct window_mirror * |
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716 find_window_mirror_maybe (struct window *w) |
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717 { |
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718 struct frame *f = XFRAME (w->frame); |
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719 if (!WINDOW_MIRRORP (f->root_mirror)) |
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720 return 0; |
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721 return find_window_mirror_internal (f->root_window, |
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722 XWINDOW_MIRROR (f->root_mirror), w); |
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723 } |
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724 |
| 428 | 725 /***************************************************************************** |
| 726 find_window_by_pixel_pos | |
| 727 | |
| 728 Given a pixel position relative to a frame, find the window at that | |
| 729 position. | |
| 730 ****************************************************************************/ | |
| 731 struct window * | |
| 732 find_window_by_pixel_pos (int pix_x, int pix_y, Lisp_Object win) | |
| 733 { | |
| 734 if (NILP (win)) | |
| 735 return 0; | |
| 736 | |
| 737 for (; !NILP (win); win = XWINDOW (win)->next) | |
| 738 { | |
| 739 struct window *w; | |
| 740 | |
| 741 if (!NILP (XWINDOW (win)->vchild)) | |
| 742 { | |
| 743 w = find_window_by_pixel_pos (pix_x, pix_y, XWINDOW (win)->vchild); | |
| 744 if (w) return w; | |
| 745 } | |
| 746 if (!NILP (XWINDOW (win)->hchild)) | |
| 747 { | |
| 748 w = find_window_by_pixel_pos (pix_x, pix_y, XWINDOW (win)->hchild); | |
| 749 if (w) return w; | |
| 750 } | |
| 751 w = XWINDOW (win); | |
| 752 if (pix_x >= WINDOW_LEFT (w) | |
| 753 && pix_x <= WINDOW_RIGHT (w) | |
| 754 && pix_y >= WINDOW_TOP (w) | |
| 755 && pix_y <= WINDOW_BOTTOM (w)) | |
| 756 return w; | |
| 757 } | |
| 758 return NULL; | |
| 759 } | |
| 760 | |
| 761 /* Return a pointer to the display structures for the given window. */ | |
| 762 display_line_dynarr * | |
| 763 window_display_lines (struct window *w, int which) | |
| 764 { | |
| 765 struct window_mirror *t; | |
| 766 | |
| 767 if (XFRAME (w->frame)->mirror_dirty) | |
| 768 update_frame_window_mirror (XFRAME (w->frame)); | |
| 769 t = find_window_mirror (w); | |
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770 assert (t); |
| 428 | 771 |
| 772 if (which == CURRENT_DISP) | |
| 773 return t->current_display_lines; | |
| 774 else if (which == DESIRED_DISP) | |
| 775 return t->desired_display_lines; | |
| 776 else if (which == CMOTION_DISP) | |
| 777 /* The CMOTION_DISP display lines are global. */ | |
| 778 return cmotion_display_lines; | |
| 779 else | |
| 2500 | 780 ABORT (); |
| 428 | 781 |
| 782 return 0; /* shut up compiler */ | |
| 783 } | |
| 784 | |
| 785 struct buffer * | |
| 786 window_display_buffer (struct window *w) | |
| 787 { | |
| 788 struct window_mirror *t; | |
| 789 | |
| 790 if (XFRAME (w->frame)->mirror_dirty) | |
| 791 update_frame_window_mirror (XFRAME (w->frame)); | |
| 792 t = find_window_mirror (w); | |
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793 assert (t); |
| 428 | 794 |
| 795 return t->buffer; | |
| 796 } | |
| 797 | |
| 798 void | |
| 799 set_window_display_buffer (struct window *w, struct buffer *b) | |
| 800 { | |
| 801 struct window_mirror *t; | |
| 802 | |
| 803 if (XFRAME (w->frame)->mirror_dirty) | |
| 804 update_frame_window_mirror (XFRAME (w->frame)); | |
| 805 t = find_window_mirror (w); | |
|
5050
6f2158fa75ed
Fix quick-build, use asserts() in place of ABORT()
Ben Wing <ben@xemacs.org>
parents:
4967
diff
changeset
|
806 assert (t); |
| 428 | 807 |
| 808 t->buffer = b; | |
| 809 } | |
| 810 | |
| 811 | |
| 812 /* Determining a window's position based solely on its pixel | |
| 813 positioning doesn't work. Instead, we do it the intelligent way, | |
| 814 by checking its positioning in the window hierarchy. */ | |
| 815 int | |
| 816 window_is_leftmost (struct window *w) | |
| 817 { | |
| 818 Lisp_Object parent, current_ancestor, window; | |
| 819 | |
| 793 | 820 window = wrap_window (w); |
| 428 | 821 |
| 822 parent = XWINDOW (window)->parent; | |
| 823 current_ancestor = window; | |
| 824 | |
| 825 while (!NILP (parent)) | |
| 826 { | |
| 827 if (!NILP (XWINDOW (parent)->hchild) && | |
| 828 !EQ (XWINDOW (parent)->hchild, current_ancestor)) | |
| 829 return 0; | |
| 830 | |
| 831 current_ancestor = parent; | |
| 832 parent = XWINDOW (parent)->parent; | |
| 833 } | |
| 834 | |
| 835 return 1; | |
| 836 } | |
| 837 | |
| 838 int | |
| 839 window_is_rightmost (struct window *w) | |
| 840 { | |
| 841 Lisp_Object parent, current_ancestor, window; | |
| 842 | |
| 793 | 843 window = wrap_window (w); |
| 428 | 844 |
| 845 parent = XWINDOW (window)->parent; | |
| 846 current_ancestor = window; | |
| 847 | |
| 848 while (!NILP (parent)) | |
| 849 { | |
| 850 if (!NILP (XWINDOW (parent)->hchild) | |
| 851 && !NILP (XWINDOW (current_ancestor)->next)) | |
| 852 return 0; | |
| 853 | |
| 854 current_ancestor = parent; | |
| 855 parent = XWINDOW (parent)->parent; | |
| 856 } | |
| 857 | |
| 858 return 1; | |
| 859 } | |
| 860 | |
| 861 static int | |
| 862 window_full_width_p (struct window *w) | |
| 863 { | |
| 864 return window_is_leftmost (w) && window_is_rightmost (w); | |
| 865 } | |
| 866 | |
| 867 int | |
| 868 window_is_highest (struct window *w) | |
| 869 { | |
| 870 Lisp_Object parent, current_ancestor, window; | |
| 871 | |
| 793 | 872 window = wrap_window (w); |
| 428 | 873 |
| 874 parent = XWINDOW (window)->parent; | |
| 875 current_ancestor = window; | |
| 876 | |
| 877 while (!NILP (parent)) | |
| 878 { | |
| 879 if (!NILP (XWINDOW (parent)->vchild) && | |
| 880 !EQ (XWINDOW (parent)->vchild, current_ancestor)) | |
| 881 return 0; | |
| 882 | |
| 883 current_ancestor = parent; | |
| 884 parent = XWINDOW (parent)->parent; | |
| 885 } | |
| 886 | |
| 887 /* This is really to catch the minibuffer but we make it generic in | |
| 888 case we ever change things around to let the minibuffer be on top. */ | |
| 889 if (NILP (XWINDOW (current_ancestor)->prev)) | |
| 890 return 1; | |
| 891 else | |
| 892 return 0; | |
| 893 } | |
| 894 | |
| 895 int | |
| 896 window_is_lowest (struct window *w) | |
| 897 { | |
| 898 Lisp_Object parent, current_ancestor, window; | |
| 899 | |
| 793 | 900 window = wrap_window (w); |
| 428 | 901 |
| 902 parent = XWINDOW (window)->parent; | |
| 903 current_ancestor = window; | |
| 904 | |
| 905 while (!NILP (parent)) | |
| 906 { | |
| 907 if (!NILP (XWINDOW (parent)->vchild) | |
| 908 && !NILP (XWINDOW (current_ancestor)->next)) | |
| 909 return 0; | |
| 910 | |
| 911 current_ancestor = parent; | |
| 912 parent = XWINDOW (parent)->parent; | |
| 913 } | |
| 914 | |
| 915 return 1; | |
| 916 } | |
| 917 | |
| 918 #if 0 /* not currently used */ | |
| 919 | |
| 920 static int | |
| 921 window_full_height_p (struct window *w) | |
| 922 { | |
| 923 return window_is_highest (w) && window_is_lowest (w); | |
| 924 } | |
| 925 | |
| 926 #endif | |
| 927 | |
| 928 int | |
| 929 window_truncation_on (struct window *w) | |
| 930 { | |
| 931 /* Minibuffer windows are never truncated. | |
| 440 | 932 #### is this the right way ? */ |
| 428 | 933 if (MINI_WINDOW_P (w)) |
| 934 return 0; | |
| 935 | |
| 936 /* Horizontally scrolled windows are truncated. */ | |
| 937 if (w->hscroll) | |
| 938 return 1; | |
| 939 | |
| 940 /* If truncate_partial_width_windows is true and the window is not | |
| 941 the full width of the frame it is truncated. */ | |
| 707 | 942 if (!NILP (symbol_value_in_buffer (Qtruncate_partial_width_windows, |
| 943 w->buffer)) | |
| 428 | 944 && !(window_is_leftmost (w) && window_is_rightmost (w))) |
| 945 return 1; | |
| 946 | |
| 947 /* If the window's buffer's value of truncate_lines is non-nil, then | |
| 948 the window is truncated. */ | |
| 949 if (!NILP (XBUFFER (w->buffer)->truncate_lines)) | |
| 950 return 1; | |
| 951 | |
| 952 return 0; | |
| 953 } | |
| 954 | |
| 955 DEFUN ("window-truncated-p", Fwindow_truncated_p, 0, 1, 0, /* | |
| 442 | 956 Returns non-nil if text in the window is truncated. |
| 428 | 957 */ |
| 958 (window)) | |
| 959 { | |
| 960 struct window *w = decode_window (window); | |
| 961 | |
| 962 return window_truncation_on (w) ? Qt : Qnil; | |
| 963 } | |
| 964 | |
| 965 | |
| 966 static int | |
| 967 have_undivided_common_edge (struct window *w_right, void *closure) | |
| 968 { | |
| 969 struct window *w_left = (struct window *) closure; | |
| 970 return (WINDOW_RIGHT (w_left) == WINDOW_LEFT (w_right) | |
| 971 && WINDOW_TOP (w_left) < WINDOW_BOTTOM (w_right) | |
| 972 && WINDOW_TOP (w_right) < WINDOW_BOTTOM (w_left) | |
| 973 #ifdef HAVE_SCROLLBARS | |
| 974 && (NILP (w_right->scrollbar_on_left_p) | |
| 975 || NILP (w_right->vertical_scrollbar_visible_p) | |
| 976 || ZEROP (w_right->scrollbar_width)) | |
| 977 #endif | |
| 978 ); | |
| 979 } | |
| 980 | |
| 981 static int | |
| 982 window_needs_vertical_divider_1 (struct window *w) | |
| 983 { | |
| 984 /* Never if we're on the right */ | |
| 985 if (window_is_rightmost (w)) | |
| 986 return 0; | |
| 987 | |
| 988 /* Always if draggable */ | |
| 989 if (!NILP (w->vertical_divider_always_visible_p)) | |
| 990 return 1; | |
| 991 | |
| 992 #ifdef HAVE_SCROLLBARS | |
| 993 /* Our right scrollbar is enough to separate us at the right */ | |
| 994 if (NILP (w->scrollbar_on_left_p) | |
| 995 && !NILP (w->vertical_scrollbar_visible_p) | |
| 996 && !ZEROP (w->scrollbar_width)) | |
| 997 return 0; | |
| 998 #endif | |
| 999 | |
| 1000 /* Ok. to determine whether we need a divider on the left, we must | |
| 1001 check that our right neighbor windows have scrollbars on their | |
| 1002 left sides. We must check all such windows which have common | |
| 1003 left edge with our window's right edge. */ | |
| 1004 return map_windows (XFRAME (WINDOW_FRAME (w)), | |
| 1005 have_undivided_common_edge, (void*)w); | |
| 1006 } | |
| 1007 | |
| 1008 int | |
| 1009 window_needs_vertical_divider (struct window *w) | |
| 1010 { | |
| 1011 if (!w->need_vertical_divider_valid_p) | |
| 1012 { | |
| 1013 w->need_vertical_divider_p = | |
| 1014 window_needs_vertical_divider_1 (w); | |
| 1015 w->need_vertical_divider_valid_p = 1; | |
| 1016 } | |
| 1017 return w->need_vertical_divider_p; | |
| 1018 } | |
| 1019 | |
| 1020 /* Called from invalidate_vertical_divider_cache_in_frame */ | |
| 1021 int | |
| 1022 invalidate_vertical_divider_cache_in_window (struct window *w, | |
| 2286 | 1023 void *UNUSED (unused)) |
| 428 | 1024 { |
| 1025 w->need_vertical_divider_valid_p = 0; | |
| 1026 return 0; | |
| 1027 } | |
| 1028 | |
| 1029 /* Calculate width of vertical divider, including its shadows | |
| 1030 and spacing. The returned value is effectively the distance | |
| 1031 between adjacent window edges. This function does not check | |
| 1032 whether a window needs a vertical divider, so the returned | |
| 1033 value is a "theoretical" one */ | |
| 1034 int | |
| 1035 window_divider_width (struct window *w) | |
| 1036 { | |
| 1037 /* the shadow thickness can be negative. This means that the divider | |
| 1038 will have a depressed look */ | |
| 1039 | |
| 1040 if (FRAME_WIN_P (XFRAME (WINDOW_FRAME (w)))) | |
| 1041 return | |
| 1042 XINT (w->vertical_divider_line_width) | |
| 1043 + 2 * XINT (w->vertical_divider_spacing) | |
| 1044 + 2 * abs (XINT (w->vertical_divider_shadow_thickness)); | |
| 1045 else | |
| 1046 return XINT (w->vertical_divider_line_width) == 0 ? 0 : 1; | |
| 1047 } | |
| 1048 | |
| 1049 int | |
| 4932 | 1050 window_scrollbar_width (struct window * USED_IF_SCROLLBARS (w)) |
| 428 | 1051 { |
| 1052 #ifdef HAVE_SCROLLBARS | |
| 1053 if (!WINDOW_WIN_P (w) | |
| 1054 || MINI_WINDOW_P (w) | |
| 1055 || NILP (w->buffer) | |
| 1056 || NILP (w->vertical_scrollbar_visible_p)) | |
| 1057 /* #### when does NILP (w->buffer) happen? */ | |
| 1058 return 0; | |
| 1059 | |
| 1060 return XINT (w->scrollbar_width); | |
| 1061 #else | |
| 1062 return 0; | |
| 1063 #endif /* HAVE_SCROLLBARS */ | |
| 1064 } | |
| 1065 | |
| 1066 /* Horizontal scrollbars are only active on windows with truncation | |
| 1067 turned on. */ | |
| 1068 int | |
| 4932 | 1069 window_scrollbar_height (struct window * USED_IF_SCROLLBARS (w)) |
| 428 | 1070 { |
| 1071 #ifdef HAVE_SCROLLBARS | |
| 1072 if (!WINDOW_WIN_P (w) | |
| 1073 || MINI_WINDOW_P (w) | |
| 1074 || NILP (w->buffer) | |
| 1075 || NILP (w->horizontal_scrollbar_visible_p) | |
| 1076 || !window_truncation_on (w)) | |
| 1077 return 0; | |
| 1078 | |
| 1079 return XINT (w->scrollbar_height); | |
| 1080 #else | |
| 1081 return 0; | |
| 1082 #endif /* HAVE_SCROLLBARS */ | |
| 1083 } | |
| 1084 | |
| 1085 int | |
| 1086 window_modeline_height (struct window *w) | |
| 1087 { | |
| 1088 struct frame *f = XFRAME (w->frame); | |
| 1089 int modeline_height; | |
| 1090 | |
| 1091 if (MINI_WINDOW_P (w) || NILP (w->buffer)) | |
| 1092 { | |
| 1093 modeline_height = 0; | |
| 1094 } | |
| 1095 else if (!WINDOW_HAS_MODELINE_P (w)) | |
| 1096 { | |
| 1097 if (window_scrollbar_height (w)) | |
| 1098 modeline_height = 0; | |
| 1099 else | |
| 1100 { | |
| 1101 modeline_height = FRAMEMETH (f, divider_height, ()); | |
| 1102 | |
| 1103 if (!EQ (Qzero, w->modeline_shadow_thickness) && FRAME_WIN_P (f)) | |
| 1104 modeline_height += (2 * MODELINE_SHADOW_THICKNESS (w)); | |
| 1105 } | |
| 1106 } | |
| 1107 else | |
| 1108 { | |
| 1109 if (noninteractive) | |
| 1110 modeline_height = 0; | |
| 1111 else | |
| 1112 { | |
| 1113 display_line_dynarr *dla; | |
| 1114 | |
| 1115 /* We don't force a regeneration of the modeline here. | |
| 1116 Instead it is now a precondition that any function calling | |
| 1117 this should make sure that one of these structures is | |
| 1118 up-to-date. In practice this only affects two internal | |
| 1119 redisplay functions, regenerate_window and | |
| 1120 regenerate_window_point_center. */ | |
| 1121 /* We check DESIRED_DISP because if it is valid it is more | |
| 1122 up-to-date than CURRENT_DISP. For calls to this outside | |
| 1123 of redisplay it doesn't matter which structure we check | |
| 1124 since there is a redisplay condition that these | |
| 1125 structures be identical outside of redisplay. */ | |
| 1126 dla = window_display_lines (w, DESIRED_DISP); | |
| 4967 | 1127 if (dla && Dynarr_length (dla) && Dynarr_begin (dla)->modeline) |
| 1128 modeline_height = (Dynarr_begin (dla)->ascent + | |
| 1129 Dynarr_begin (dla)->descent); | |
| 428 | 1130 else |
| 1131 { | |
| 1132 dla = window_display_lines (w, CURRENT_DISP); | |
| 4967 | 1133 if (dla && Dynarr_length (dla) && Dynarr_begin (dla)->modeline) |
| 1134 modeline_height = (Dynarr_begin (dla)->ascent + | |
| 1135 Dynarr_begin (dla)->descent); | |
| 428 | 1136 else |
| 1137 /* This should be an abort except I'm not yet 100% | |
| 1138 confident that it won't ever get hit (though I | |
| 1139 haven't been able to trigger it). It is extremely | |
| 1140 unlikely to cause any noticeable problem and even if | |
| 1141 it does it will be a minor display glitch. */ | |
| 1142 /* #### Bullshit alert. It does get hit and it causes | |
| 1143 noticeable glitches. real_current_modeline_height | |
| 1144 is a kludge to fix this for 19.14. */ | |
| 1145 modeline_height = real_current_modeline_height (w); | |
| 1146 } | |
| 1147 | |
| 1148 if (!EQ (Qzero, w->modeline_shadow_thickness) && FRAME_WIN_P (f)) | |
| 1149 modeline_height += (2 * MODELINE_SHADOW_THICKNESS (w)); | |
| 1150 } | |
| 1151 } | |
| 1152 | |
| 1153 return modeline_height; | |
| 1154 } | |
| 1155 | |
| 1156 /***************************************************************************** | |
| 1157 margin_width_internal | |
| 1158 | |
| 1159 For a given window, return the width in pixels of the specified margin. | |
| 1160 ****************************************************************************/ | |
| 1161 static int | |
| 1162 margin_width_internal (struct window *w, int left_margin) | |
| 1163 { | |
| 1164 int window_cwidth = window_char_width (w, 1); | |
| 1165 int margin_cwidth; | |
| 1166 int font_width; | |
| 1167 Lisp_Object window; | |
| 1168 | |
| 1169 /* We might be getting called on a non-leaf. */ | |
| 1170 if (NILP (w->buffer)) | |
| 1171 return 0; | |
| 1172 | |
| 1173 /* The minibuffer never has margins. */ | |
| 1174 if (MINI_WINDOW_P (w)) | |
| 1175 return 0; | |
| 1176 | |
| 793 | 1177 window = wrap_window (w); |
| 428 | 1178 margin_cwidth = (left_margin ? XINT (w->left_margin_width) : |
| 1179 XINT (w->right_margin_width)); | |
| 1180 | |
|
5047
07dcc7000bbf
put width before height consistently, fix a real bug found in the process
Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
1181 default_face_width_and_height (window, &font_width, 0); |
| 428 | 1182 |
| 1183 /* The left margin takes precedence over the right margin so we | |
| 1184 subtract its width from the space available for the right | |
| 1185 margin. */ | |
| 1186 if (!left_margin) | |
| 1187 window_cwidth -= XINT (w->left_margin_width); | |
| 1188 | |
| 1189 /* The margin cannot be wider than the window is. We allow the | |
| 1190 value to be bigger since it is possible for the user to enlarge | |
| 1191 the window such that the left margin value would no longer be too | |
| 1192 big, but we won't return a value that is larger. */ | |
| 1193 if (margin_cwidth > window_cwidth) | |
| 1194 margin_cwidth = window_cwidth; | |
| 1195 | |
| 1196 /* At the user level the margin is always specified in characters. | |
| 1197 Internally however it is manipulated in terms of pixels. */ | |
| 1198 return margin_cwidth * font_width; | |
| 1199 } | |
| 1200 | |
| 1201 int | |
| 1202 window_left_margin_width (struct window *w) | |
| 1203 { | |
| 1204 return margin_width_internal (w, 1); | |
| 1205 } | |
| 1206 | |
| 1207 int | |
| 1208 window_right_margin_width (struct window *w) | |
| 1209 { | |
| 1210 return margin_width_internal (w, 0); | |
| 1211 } | |
| 1212 | |
| 1213 /***************************************************************************** | |
| 1214 Window Gutters | |
| 1215 | |
| 1216 The gutters of a window are those areas in the boundary defined by | |
| 1217 w->pixel_top, w->pixel_left, w->pixel_height and w->pixel_width which | |
| 1218 do not contain text. Items which may be in the gutters include | |
| 1219 scrollbars, toolbars and modelines. The margin areas are not | |
| 1220 included. This is an exception made because redisplay special cases | |
| 1221 the handling of those areas in many places in such a way that | |
| 1222 including them in the gutter area would make life difficult. | |
| 1223 | |
| 1224 The size functions refer to height for the bottom and top gutters and | |
| 1225 width for the left and right gutters. The starting position | |
| 1226 functions refer to the Y coord for bottom and top gutters and the X | |
| 1227 coord for left and right gutters. All starting positions are | |
| 1228 relative to the frame, not the window. | |
| 1229 ****************************************************************************/ | |
| 1230 | |
| 442 | 1231 static int |
| 1232 window_top_window_gutter_height (struct window *w) | |
| 1233 { | |
| 428 | 1234 if (!NILP (w->hchild) || !NILP (w->vchild)) |
| 1235 return 0; | |
| 1236 | |
| 1237 #ifdef HAVE_SCROLLBARS | |
| 1238 if (!NILP (w->scrollbar_on_top_p)) | |
| 442 | 1239 return window_scrollbar_height (w); |
| 428 | 1240 else |
| 1241 #endif | |
| 442 | 1242 return 0; |
| 428 | 1243 } |
| 1244 | |
| 1245 int | |
| 442 | 1246 window_top_gutter_height (struct window *w) |
| 1247 { | |
| 1248 return window_top_window_gutter_height (w); | |
| 1249 } | |
| 1250 | |
| 1251 static int | |
| 1252 window_bottom_window_gutter_height (struct window *w) | |
| 1253 { | |
| 1254 int gutter; | |
| 428 | 1255 |
| 1256 if (!NILP (w->hchild) || !NILP (w->vchild)) | |
| 1257 return 0; | |
| 1258 | |
| 442 | 1259 gutter = window_modeline_height (w); |
| 428 | 1260 |
| 1261 #ifdef HAVE_SCROLLBARS | |
| 1262 if (NILP (w->scrollbar_on_top_p)) | |
| 1263 return window_scrollbar_height (w) + gutter; | |
| 1264 else | |
| 1265 #endif | |
| 1266 return gutter; | |
| 1267 } | |
| 1268 | |
| 1269 int | |
| 442 | 1270 window_bottom_gutter_height (struct window *w) |
| 1271 { | |
| 1272 return window_bottom_window_gutter_height (w); | |
| 1273 } | |
| 1274 | |
| 1275 static int | |
| 4932 | 1276 window_left_window_gutter_width (struct window *w, |
| 1277 int USED_IF_SCROLLBARS (modeline)) | |
| 442 | 1278 { |
| 428 | 1279 if (!NILP (w->hchild) || !NILP (w->vchild)) |
| 1280 return 0; | |
| 1281 | |
| 1282 #ifdef HAVE_SCROLLBARS | |
| 1283 if (!modeline && !NILP (w->scrollbar_on_left_p)) | |
| 442 | 1284 return window_scrollbar_width (w); |
| 428 | 1285 #endif |
| 1286 | |
| 442 | 1287 return 0; |
| 428 | 1288 } |
| 1289 | |
| 1290 int | |
| 442 | 1291 window_left_gutter_width (struct window *w, int modeline) |
| 1292 { | |
| 1293 return window_left_window_gutter_width (w, modeline); | |
| 1294 } | |
| 1295 | |
| 1296 static int | |
| 4932 | 1297 window_right_window_gutter_width (struct window *w, |
| 1298 int USED_IF_SCROLLBARS (modeline)) | |
| 442 | 1299 { |
| 1300 int gutter = 0; | |
| 428 | 1301 |
| 1302 if (!NILP (w->hchild) || !NILP (w->vchild)) | |
| 1303 return 0; | |
| 1304 | |
| 1305 #ifdef HAVE_SCROLLBARS | |
| 1306 if (!modeline && NILP (w->scrollbar_on_left_p)) | |
| 1307 gutter += window_scrollbar_width (w); | |
| 1308 #endif | |
| 1309 | |
| 1310 if (window_needs_vertical_divider (w)) | |
| 1311 gutter += window_divider_width (w); | |
| 1312 | |
| 1313 return gutter; | |
| 1314 } | |
| 1315 | |
| 442 | 1316 int |
| 1317 window_right_gutter_width (struct window *w, int modeline) | |
| 1318 { | |
| 1319 return window_right_window_gutter_width (w, modeline); | |
| 1320 } | |
| 1321 | |
| 1322 static int | |
| 1323 window_pixel_height (struct window* w) | |
| 1324 { | |
| 1325 return WINDOW_HEIGHT (w); | |
| 1326 } | |
| 1327 | |
| 428 | 1328 |
| 1329 DEFUN ("windowp", Fwindowp, 1, 1, 0, /* | |
| 444 | 1330 Return t if OBJECT is a window. |
| 428 | 1331 */ |
| 444 | 1332 (object)) |
| 1333 { | |
| 1334 return WINDOWP (object) ? Qt : Qnil; | |
| 428 | 1335 } |
| 1336 | |
| 1337 DEFUN ("window-live-p", Fwindow_live_p, 1, 1, 0, /* | |
| 444 | 1338 Return t if OBJECT is a window which is currently visible. |
| 428 | 1339 */ |
| 444 | 1340 (object)) |
| 1341 { | |
| 1342 return WINDOWP (object) && WINDOW_LIVE_P (XWINDOW (object)) | |
| 1343 ? Qt : Qnil; | |
| 428 | 1344 } |
| 1345 | |
| 1346 DEFUN ("selected-window", Fselected_window, 0, 1, 0, /* | |
| 1347 Return the window that the cursor now appears in and commands apply to. | |
| 1348 If the optional argument CON-DEV-OR-FRAME is specified and is a frame, return | |
| 1349 the selected window used by that frame. If CON-DEV-OR-FRAME is a device, | |
| 1350 then the selected frame on that device will be used. If CON-DEV-OR-FRAME | |
| 1351 is a console, the selected frame on that console's selected device will | |
| 1352 be used. Otherwise, the selected frame is used. | |
| 1353 */ | |
| 1354 (con_dev_or_frame)) | |
| 1355 { | |
| 1356 if (NILP (con_dev_or_frame) && NILP (Fselected_device (Qnil))) | |
| 1357 return Qnil; /* happens at startup */ | |
| 1358 | |
| 1359 { | |
| 1360 struct frame *f = decode_frame_or_selected (con_dev_or_frame); | |
| 1361 return FRAME_SELECTED_WINDOW (f); | |
| 1362 } | |
| 1363 } | |
| 1364 | |
| 1365 DEFUN ("last-nonminibuf-window", Flast_nonminibuf_window, 0, 1, 0, /* | |
| 1366 Return the last selected window that is not a minibuffer window. | |
| 1367 If the optional argument CON-DEV-OR-FRAME is specified and is a frame, | |
| 1368 return the last non-minibuffer window used by that frame. If | |
| 1369 CON-DEV-OR-FRAME is a device, then the selected frame on that device | |
| 1370 will be used. If CON-DEV-OR-FRAME is a console, the selected frame on | |
| 1371 that console's selected device will be used. Otherwise, the selected | |
| 1372 frame is used. | |
| 1373 */ | |
| 1374 (con_dev_or_frame)) | |
| 1375 { | |
| 1376 if (NILP (con_dev_or_frame) && NILP (Fselected_device (Qnil))) | |
| 1377 return Qnil; /* happens at startup */ | |
| 1378 | |
| 1379 { | |
| 1380 struct frame *f = decode_frame_or_selected (con_dev_or_frame); | |
| 1381 return FRAME_LAST_NONMINIBUF_WINDOW (f); | |
| 1382 } | |
| 1383 } | |
| 1384 | |
| 1385 DEFUN ("minibuffer-window", Fminibuffer_window, 0, 1, 0, /* | |
| 1386 Return the window used now for minibuffers. | |
| 1387 If the optional argument CON-DEV-OR-FRAME is specified and is a frame, return | |
| 1388 the minibuffer window used by that frame. If CON-DEV-OR-FRAME is a device, | |
| 1389 then the selected frame on that device will be used. If CON-DEV-OR-FRAME | |
| 1390 is a console, the selected frame on that console's selected device will | |
| 1391 be used. Otherwise, the selected frame is used. | |
| 1392 */ | |
| 1393 (con_dev_or_frame)) | |
| 1394 { | |
| 1395 return FRAME_MINIBUF_WINDOW (decode_frame_or_selected (con_dev_or_frame)); | |
| 1396 } | |
| 1397 | |
| 438 | 1398 DEFUN ("window-minibuffer-p", Fwindow_minibuffer_p, 0, 1, 0, /* |
| 428 | 1399 Return non-nil if WINDOW is a minibuffer window. |
| 1400 */ | |
| 1401 (window)) | |
| 1402 { | |
| 1403 return MINI_WINDOW_P (decode_window (window)) ? Qt : Qnil; | |
| 1404 } | |
| 1405 | |
| 1406 DEFUN ("window-first-hchild", Fwindow_first_hchild, 1, 1, 0, /* | |
| 1407 Return the first horizontal child of WINDOW, or nil. | |
| 1408 */ | |
| 1409 (window)) | |
| 1410 { | |
| 1411 return decode_window (window)->hchild; | |
| 1412 } | |
| 1413 | |
| 1414 DEFUN ("window-first-vchild", Fwindow_first_vchild, 1, 1, 0, /* | |
| 1415 Return the first vertical child of WINDOW, or nil. | |
| 1416 */ | |
| 1417 (window)) | |
| 1418 { | |
| 1419 return decode_window (window)->vchild; | |
| 1420 } | |
| 1421 | |
| 1422 DEFUN ("window-next-child", Fwindow_next_child, 1, 1, 0, /* | |
| 1423 Return the next window on the same level as WINDOW, or nil. | |
| 1424 */ | |
| 1425 (window)) | |
| 1426 { | |
| 1427 return decode_window (window)->next; | |
| 1428 } | |
| 1429 | |
| 1430 DEFUN ("window-previous-child", Fwindow_previous_child, 1, 1, 0, /* | |
| 1431 Return the previous window on the same level as WINDOW, or nil. | |
| 1432 */ | |
| 1433 (window)) | |
| 1434 { | |
| 1435 return decode_window (window)->prev; | |
| 1436 } | |
| 1437 | |
| 1438 DEFUN ("window-parent", Fwindow_parent, 1, 1, 0, /* | |
| 1439 Return the parent of WINDOW, or nil. | |
| 1440 */ | |
| 1441 (window)) | |
| 1442 { | |
| 1443 return decode_window (window)->parent; | |
| 1444 } | |
| 1445 | |
| 1446 DEFUN ("window-lowest-p", Fwindow_lowest_p, 1, 1, 0, /* | |
| 1447 Return non-nil if WINDOW is along the bottom of its frame. | |
| 1448 */ | |
| 1449 (window)) | |
| 1450 { | |
| 1451 return window_is_lowest (decode_window (window)) ? Qt : Qnil; | |
| 1452 } | |
| 1453 | |
| 1454 DEFUN ("window-highest-p", Fwindow_highest_p, 1, 1, 0, /* | |
| 1455 Return non-nil if WINDOW is along the top of its frame. | |
| 1456 */ | |
| 1457 (window)) | |
| 1458 { | |
| 1459 return window_is_highest (decode_window (window)) ? Qt : Qnil; | |
| 1460 } | |
| 1461 | |
| 1462 DEFUN ("window-leftmost-p", Fwindow_leftmost_p, 1, 1, 0, /* | |
| 1463 Return non-nil if WINDOW is along the left edge of its frame. | |
| 1464 */ | |
| 1465 (window)) | |
| 1466 { | |
| 1467 return window_is_leftmost (decode_window (window)) ? Qt : Qnil; | |
| 1468 } | |
| 1469 | |
| 1470 DEFUN ("window-rightmost-p", Fwindow_rightmost_p, 1, 1, 0, /* | |
| 1471 Return non-nil if WINDOW is along the right edge of its frame. | |
| 1472 */ | |
| 1473 (window)) | |
| 1474 { | |
| 1475 return window_is_rightmost (decode_window (window)) ? Qt : Qnil; | |
| 1476 } | |
| 1477 | |
| 1708 | 1478 DEFUN ("pos-visible-in-window-p", Fpos_visible_in_window_p, 0, 3, 0, /* |
| 1479 Returns t if position POS is currently on the frame in WINDOW. | |
| 428 | 1480 Returns nil if that position is scrolled vertically out of view. |
| 1708 | 1481 If a character is only partially visible, nil is returned, unless the |
| 1482 optional argument PARTIALLY is non-nil. | |
| 428 | 1483 POS defaults to point in WINDOW's buffer; WINDOW, to the selected window. |
| 1484 */ | |
| 1708 | 1485 (pos, window, partially)) |
| 428 | 1486 { |
| 1487 struct window *w = decode_window (window); | |
| 665 | 1488 Charbpos top = marker_position (w->start[CURRENT_DISP]); |
| 1489 Charbpos posint; | |
| 428 | 1490 struct buffer *buf = XBUFFER (w->buffer); |
| 1491 | |
| 1492 if (NILP (pos)) | |
| 1493 posint = BUF_PT (buf); | |
| 1494 else | |
| 1495 { | |
| 1496 CHECK_INT_COERCE_MARKER (pos); | |
| 1497 posint = XINT (pos); | |
| 1498 } | |
| 1499 | |
| 1500 if (posint < top || posint > BUF_ZV (buf)) | |
| 1501 return Qnil; | |
| 1502 | |
| 1503 /* w->start can be out of range. If it is, do something reasonable. */ | |
| 1504 if (top < BUF_BEGV (buf) || top > BUF_ZV (buf)) | |
| 1505 return Qnil; | |
| 1506 | |
| 1708 | 1507 return point_would_be_visible (w, top, posint, !NILP (partially)) |
| 1508 ? Qt : Qnil; | |
| 428 | 1509 } |
| 1510 | |
| 1511 | |
| 1512 struct window * | |
| 1513 decode_window (Lisp_Object window) | |
| 1514 { | |
| 1515 if (NILP (window)) | |
| 1516 return XWINDOW (Fselected_window (Qnil)); | |
| 1517 | |
| 1518 CHECK_LIVE_WINDOW (window); | |
| 1519 return XWINDOW (window); | |
| 1520 } | |
| 1521 | |
| 872 | 1522 int |
| 1523 window_live_p (struct window *w) | |
| 1524 { | |
| 1525 return WINDOW_LIVE_P (w); | |
| 1526 } | |
| 1527 | |
| 1528 Lisp_Object | |
| 1529 window_frame (struct window *w) | |
| 1530 { | |
| 1531 return WINDOW_FRAME (w); | |
| 1532 } | |
| 1533 | |
| 1534 Lisp_Object | |
| 1535 window_buffer (struct window *w) | |
| 1536 { | |
| 1537 return WINDOW_BUFFER (w); | |
| 1538 } | |
| 1539 | |
| 428 | 1540 DEFUN ("window-buffer", Fwindow_buffer, 0, 1, 0, /* |
| 1541 Return the buffer that WINDOW is displaying. | |
| 1542 */ | |
| 1543 (window)) | |
| 1544 { | |
| 1545 return decode_window (window)->buffer; | |
| 1546 } | |
| 1547 | |
| 1548 DEFUN ("window-frame", Fwindow_frame, 0, 1, 0, /* | |
| 1549 Return the frame that window WINDOW is on. | |
| 1550 */ | |
| 1551 (window)) | |
| 1552 { | |
| 1553 return decode_window (window)->frame; | |
| 1554 } | |
| 1555 | |
| 1556 DEFUN ("window-height", Fwindow_height, 0, 1, 0, /* | |
| 1557 Return the number of default lines in WINDOW. | |
| 1558 This actually works by dividing the window's pixel height (including | |
| 1559 the modeline and horizontal scrollbar, if any) by the height of the | |
| 1560 default font; therefore, the number of displayed lines will probably | |
| 1561 be different. | |
| 1562 Use `window-height' to get consistent results in geometry calculations. | |
| 1563 Use `window-displayed-height' to get the actual number of lines | |
| 1564 currently displayed in a window. | |
| 442 | 1565 |
| 1566 The names are somewhat confusing; here's a table to help out: | |
| 1567 | |
| 1568 width height | |
| 1569 ------------------------------------------------------------------------- | |
| 1570 w/o gutters | |
| 1571 (rows/columns) window-width window-text-area-height | |
| 1572 (pixels) window-text-area-pixel-width window-text-area-pixel-height | |
| 1573 | |
| 1574 with gutters | |
| 1575 (rows/columns) window-full-width window-height | |
| 1576 (pixels) window-pixel-width window-pixel-height | |
| 1577 | |
| 1578 actually displayed | |
| 1579 (rows/columns) ---- window-displayed-height | |
| 1580 (pixels) ---- window-displayed-text-pixel-height | |
| 428 | 1581 */ |
| 1582 (window)) | |
| 1583 { | |
| 1584 return make_int (window_char_height (decode_window (window), 1)); | |
| 1585 } | |
| 1586 | |
| 1587 DEFUN ("window-displayed-height", Fwindow_displayed_height, 0, 1, 0, /* | |
| 1588 Return the number of lines currently displayed in WINDOW. | |
| 1589 This counts the actual number of lines displayed in WINDOW | |
| 1590 \(as opposed to `window-height'). The modeline and horizontal | |
| 1591 scrollbar do not count as lines. If there is some blank space | |
| 1592 between the end of the buffer and the end of the window, this | |
| 1593 function pretends that there are lines of text in the default | |
| 1594 font there. | |
| 1595 */ | |
| 1596 (window)) | |
| 1597 { | |
| 1598 return make_int (window_displayed_height (decode_window (window))); | |
| 1599 } | |
| 1600 | |
| 1601 DEFUN ("window-pixel-height", Fwindow_pixel_height, 0, 1, 0, /* | |
| 1602 Return the height of WINDOW in pixels. Defaults to current window. | |
| 1603 This includes the window's modeline and horizontal scrollbar (if any). | |
| 1604 */ | |
| 1605 (window)) | |
| 1606 { | |
| 442 | 1607 return make_int (window_pixel_height (decode_window (window))); |
| 1608 } | |
| 1609 | |
| 1610 DEFUN ("window-text-area-height", Fwindow_text_area_height, 0, 1, 0, /* | |
| 1611 Return the number of default lines in the text area of WINDOW. | |
| 1612 This actually works by dividing the window's text area pixel height (i.e. | |
| 1613 excluding the modeline and horizontal scrollbar, if any) by the height of the | |
| 1614 default font; therefore, the number of displayed lines will probably | |
| 1615 be different. | |
| 1616 See also `window-height' and `window-displayed-height'. | |
| 1617 */ | |
| 1618 (window)) | |
| 1619 { | |
| 1620 return make_int (window_char_height (decode_window (window), 0)); | |
| 428 | 1621 } |
| 1622 | |
| 1623 DEFUN ("window-text-area-pixel-height", | |
| 1624 Fwindow_text_area_pixel_height, 0, 1, 0, /* | |
| 1625 Return the height in pixels of the text-displaying portion of WINDOW. | |
| 1626 Unlike `window-pixel-height', the space occupied by the modeline and | |
| 1627 horizontal scrollbar, if any, is not counted. | |
| 1628 */ | |
| 1629 (window)) | |
| 1630 { | |
| 1631 struct window *w = decode_window (window); | |
| 1632 | |
| 1633 return make_int (WINDOW_TEXT_HEIGHT (w)); | |
| 1634 } | |
| 1635 | |
| 1636 DEFUN ("window-displayed-text-pixel-height", | |
| 1637 Fwindow_displayed_text_pixel_height, 0, 2, 0, /* | |
| 1638 Return the height in pixels of the text displayed in WINDOW. | |
| 1639 Unlike `window-text-area-pixel-height', any blank space below the | |
| 1640 end of the buffer is not included. If optional argument NOCLIPPED | |
| 1641 is non-nil, do not include space occupied by clipped lines. | |
| 1642 */ | |
| 1643 (window, noclipped)) | |
| 1644 { | |
| 1645 struct window *w; | |
| 665 | 1646 Charbpos start, eobuf; |
| 428 | 1647 int defheight; |
| 1648 int hlimit, height, prev_height = -1; | |
| 1649 int line; | |
| 1650 int elt, nelt, i; | |
| 1651 int needed; | |
| 1652 line_start_cache_dynarr *cache; | |
| 1653 | |
| 1654 if (NILP (window)) | |
| 1655 window = Fselected_window (Qnil); | |
| 1656 | |
| 1657 CHECK_LIVE_WINDOW (window); | |
| 1658 w = XWINDOW (window); | |
| 1659 | |
| 1660 start = marker_position (w->start[CURRENT_DISP]); | |
| 1661 hlimit = WINDOW_TEXT_HEIGHT (w); | |
| 1662 eobuf = BUF_ZV (XBUFFER (w->buffer)); | |
| 1663 | |
|
5047
07dcc7000bbf
put width before height consistently, fix a real bug found in the process
Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
1664 default_face_width_and_height (window, NULL, &defheight); |
| 428 | 1665 |
| 1666 /* guess lines needed in line start cache + a few extra */ | |
| 1667 needed = (hlimit + defheight-1) / defheight + 3; | |
| 1668 | |
| 1669 while (1) { | |
| 1670 elt = point_in_line_start_cache (w, start, needed); | |
| 1671 assert (elt >= 0); /* in the cache */ | |
| 1672 | |
| 1673 cache = w->line_start_cache; | |
| 1674 nelt = Dynarr_length (cache); | |
| 1675 | |
| 1676 height = 0; | |
| 1677 for (i = elt; i < nelt; i++) { | |
| 1678 line = Dynarr_atp (cache, i)->height; | |
| 1679 | |
| 1680 if (height + line > hlimit) | |
| 1681 return make_int (!NILP (noclipped) ? height : hlimit); | |
| 1682 | |
| 1683 height += line; | |
| 1684 | |
| 1685 if (height == hlimit || Dynarr_atp (cache, i)->end >= eobuf) | |
| 1686 return make_int (height); | |
| 1687 } | |
| 1688 | |
| 1689 /* get here => need more cache lines. try again. */ | |
| 1690 assert(height > prev_height); /* progress? */ | |
| 1691 prev_height = height; | |
| 1692 | |
| 1693 needed += ((hlimit - height)*(nelt - elt) + height-1)/height + 3; | |
| 1694 } | |
| 1695 | |
| 1204 | 1696 RETURN_NOT_REACHED(make_int (0)); /* shut up compiler */ |
| 428 | 1697 } |
| 1698 | |
| 1699 DEFUN ("window-width", Fwindow_width, 0, 1, 0, /* | |
| 1700 Return the number of display columns in WINDOW. | |
| 442 | 1701 This is the width that is usable columns available for text in WINDOW, |
| 1702 and does not include vertical scrollbars, dividers, or the like. See also | |
| 1703 `window-full-width' and `window-height'. | |
| 428 | 1704 */ |
| 1705 (window)) | |
| 1706 { | |
| 1707 return make_int (window_char_width (decode_window (window), 0)); | |
| 1708 } | |
| 1709 | |
| 442 | 1710 DEFUN ("window-full-width", Fwindow_full_width, 0, 1, 0, /* |
| 1711 Return the total number of columns in WINDOW. | |
| 1712 This is like `window-width' but includes vertical scrollbars, dividers, | |
| 1713 etc. | |
| 1714 */ | |
| 1715 (window)) | |
| 1716 { | |
| 1717 return make_int (window_char_width (decode_window (window), 1)); | |
| 1718 } | |
| 1719 | |
| 428 | 1720 DEFUN ("window-pixel-width", Fwindow_pixel_width, 0, 1, 0, /* |
| 1721 Return the width of WINDOW in pixels. Defaults to current window. | |
| 1722 */ | |
| 1723 (window)) | |
| 1724 { | |
| 1725 return make_int (decode_window (window)->pixel_width); | |
| 1726 } | |
| 1727 | |
| 1728 DEFUN ("window-text-area-pixel-width", | |
| 1729 Fwindow_text_area_pixel_width, 0, 1, 0, /* | |
| 1730 Return the width in pixels of the text-displaying portion of WINDOW. | |
| 1731 Unlike `window-pixel-width', the space occupied by the vertical | |
| 1732 scrollbar or divider, if any, is not counted. | |
| 1733 */ | |
| 1734 (window)) | |
| 1735 { | |
| 1736 struct window *w = decode_window (window); | |
| 1737 | |
| 1738 return make_int (WINDOW_TEXT_WIDTH (w)); | |
| 1739 } | |
| 1740 | |
| 1741 DEFUN ("window-hscroll", Fwindow_hscroll, 0, 1, 0, /* | |
| 1742 Return the number of columns by which WINDOW is scrolled from left margin. | |
| 1743 */ | |
| 1744 (window)) | |
| 1745 { | |
| 1746 return make_int (decode_window (window)->hscroll); | |
| 1747 } | |
| 1748 | |
| 1749 DEFUN ("modeline-hscroll", Fmodeline_hscroll, 0, 1, 0, /* | |
| 442 | 1750 Return the horizontal scrolling amount of WINDOW's modeline. |
| 438 | 1751 If the window has no modeline, return nil. |
| 428 | 1752 */ |
| 1753 (window)) | |
| 1754 { | |
| 1755 struct window *w = decode_window (window); | |
| 1756 | |
| 438 | 1757 return (WINDOW_HAS_MODELINE_P (w)) ? make_int ((int) w->modeline_hscroll) : |
| 1758 Qnil; | |
| 428 | 1759 } |
| 1760 | |
| 1761 DEFUN ("set-modeline-hscroll", Fset_modeline_hscroll, 2, 2, 0, /* | |
| 442 | 1762 Set the horizontal scrolling amount of WINDOW's modeline to NCOL. |
| 438 | 1763 If NCOL is negative, it will silently be forced to 0. |
| 1764 If the window has no modeline, return nil. Otherwise, return the actual | |
| 1765 value that was set. | |
| 428 | 1766 */ |
| 1767 (window, ncol)) | |
| 1768 { | |
| 1769 struct window *w = decode_window (window); | |
| 1770 | |
| 1771 if (WINDOW_HAS_MODELINE_P (w)) | |
| 1772 { | |
| 438 | 1773 Charcount ncols; |
| 1774 | |
| 428 | 1775 CHECK_INT (ncol); |
| 438 | 1776 ncols = (XINT (ncol) <= 0) ? 0 : (Charcount) XINT (ncol); |
| 1777 if (ncols != w->modeline_hscroll) | |
| 1778 { | |
| 1779 MARK_MODELINE_CHANGED; | |
| 1780 w->modeline_hscroll = ncols; | |
| 1781 } | |
| 1782 return make_int ((int) ncols); | |
| 428 | 1783 } |
| 438 | 1784 |
| 428 | 1785 return Qnil; |
| 1786 } | |
| 1787 | |
| 1788 DEFUN ("set-window-hscroll", Fset_window_hscroll, 2, 2, 0, /* | |
| 1789 Set number of columns WINDOW is scrolled from left margin to NCOL. | |
| 1790 NCOL should be zero or positive. | |
| 1791 */ | |
| 1792 (window, ncol)) | |
| 1793 { | |
| 1794 struct window *w; | |
| 1795 int ncols; | |
| 1796 | |
| 1797 CHECK_INT (ncol); | |
| 1798 ncols = XINT (ncol); | |
| 1799 if (ncols < 0) ncols = 0; | |
| 1800 w = decode_window (window); | |
| 1801 if (w->hscroll != ncols) | |
| 1802 MARK_CLIP_CHANGED; /* FSF marks differently but we aren't FSF. */ | |
| 1803 w->hscroll = ncols; | |
| 1804 return ncol; | |
| 1805 } | |
| 1806 | |
| 1807 DEFUN ("window-pixel-edges", Fwindow_pixel_edges, 0, 1, 0, /* | |
| 1808 Return a list of the pixel edge coordinates of WINDOW. | |
| 444 | 1809 The returned list is of the form (LEFT TOP RIGHT BOTTOM), |
| 1810 all relative to 0, 0 at the top left corner of WINDOW's frame. | |
| 1811 The frame toolbars, menubars and gutters are considered to be outside | |
| 1812 of this area, while the scrollbars are considered to be inside. | |
| 428 | 1813 */ |
| 1814 (window)) | |
| 1815 { | |
| 1816 struct window *w = decode_window (window); | |
| 1817 struct frame *f = XFRAME (w->frame); | |
| 1818 | |
| 5090 | 1819 int left = w->pixel_left - FRAME_PANED_LEFT_EDGE (f); |
| 1820 int top = w->pixel_top - FRAME_PANED_TOP_EDGE (f); | |
| 428 | 1821 |
| 1822 return list4 (make_int (left), | |
| 1823 make_int (top), | |
| 1824 make_int (left + w->pixel_width), | |
| 1825 make_int (top + w->pixel_height)); | |
| 1826 } | |
| 1827 | |
| 1828 DEFUN ("window-text-area-pixel-edges", | |
| 1829 Fwindow_text_area_pixel_edges, 0, 1, 0, /* | |
| 1830 Return a list of the pixel edge coordinates of the text area of WINDOW. | |
| 444 | 1831 The returned list is of the form (LEFT TOP RIGHT BOTTOM), |
| 1832 all relative to 0, 0 at the top left corner of the total area allocated | |
| 1833 to the window, which includes the scrollbars. | |
| 428 | 1834 */ |
| 1835 (window)) | |
| 1836 { | |
| 1837 struct window *w = decode_window (window); | |
| 1838 | |
| 1839 int left = window_left_gutter_width (w, /* modeline = */ 0); | |
| 1840 int top = window_top_gutter_height (w); | |
| 1841 int right = WINDOW_WIDTH (w) - window_right_gutter_width (w, 0); | |
| 1842 int bottom = WINDOW_HEIGHT (w) - window_bottom_gutter_height (w); | |
| 1843 | |
| 1844 return list4 (make_int (left), | |
| 1845 make_int (top), | |
| 1846 make_int (right), | |
| 1847 make_int (bottom)); | |
| 1848 } | |
| 1849 | |
| 1850 DEFUN ("window-point", Fwindow_point, 0, 1, 0, /* | |
| 1851 Return current value of point in WINDOW. | |
| 442 | 1852 For a non-selected window, this is the value point would have |
| 428 | 1853 if that window were selected. |
| 1854 | |
| 1855 Note that, when WINDOW is the selected window and its buffer | |
| 1856 is also currently selected, the value returned is the same as (point). | |
| 1857 It would be more strictly correct to return the `top-level' value | |
| 1858 of point, outside of any save-excursion forms. | |
| 444 | 1859 But that value is hard to find. |
| 428 | 1860 */ |
| 1861 (window)) | |
| 1862 { | |
| 1863 struct window *w = decode_window (window); | |
| 1864 | |
| 1865 /* The special check for current buffer is necessary for this | |
| 1866 function to work as defined when called within an excursion. */ | |
| 1867 if (w == XWINDOW (Fselected_window (XFRAME (w->frame)->device)) | |
| 1868 && current_buffer == XBUFFER (w->buffer)) | |
| 1869 return Fpoint (Qnil); | |
| 1870 return Fmarker_position (w->pointm[CURRENT_DISP]); | |
| 1871 } | |
| 1872 | |
| 1873 DEFUN ("window-start", Fwindow_start, 0, 1, 0, /* | |
| 1874 Return position at which display currently starts in WINDOW. | |
| 1875 This is updated by redisplay or by calling `set-window-start'. | |
| 1876 */ | |
| 1877 (window)) | |
| 1878 { | |
| 1879 return Fmarker_position (decode_window (window)->start[CURRENT_DISP]); | |
| 1880 } | |
| 1881 | |
| 1882 DEFUN ("window-end", Fwindow_end, 0, 2, 0, /* | |
| 1883 Return position at which display currently ends in WINDOW. | |
| 1884 This is updated by redisplay, when it runs to completion. | |
| 444 | 1885 Simply changing the buffer text or setting `window-start' does not |
| 1886 update this value. WINDOW defaults to the selected window. | |
| 1887 | |
| 1888 If optional arg GUARANTEE is non-nil, the return value is guaranteed | |
| 1889 to be the same value as this function would return at the end of the | |
| 1890 next full redisplay assuming nothing else changes in the meantime. | |
| 1891 This function is potentially much slower with this flag set. | |
| 428 | 1892 */ |
| 1893 (window, guarantee)) | |
| 1894 { | |
| 1895 struct window *w = decode_window (window); | |
| 1896 | |
| 1897 if (NILP (guarantee)) | |
| 1898 { | |
| 1899 Lisp_Object buf; | |
| 1900 buf = w->buffer; | |
| 1901 CHECK_BUFFER (buf); | |
| 1902 return make_int (BUF_Z (XBUFFER (buf)) - w->window_end_pos[CURRENT_DISP]); | |
| 1903 } | |
| 1904 else | |
| 1905 { | |
| 665 | 1906 Charbpos startp = marker_position (w->start[CURRENT_DISP]); |
| 428 | 1907 return make_int (end_of_last_line (w, startp)); |
| 1908 } | |
| 1909 } | |
| 1910 | |
| 442 | 1911 DEFUN ("window-last-line-visible-height", Fwindow_last_line_visible_height, 0, 1, 0, /* |
| 1912 Return pixel height of visible part of last window line if it is clipped. | |
| 1913 If the last line is not clipped, return nil. | |
| 1914 */ | |
| 1915 (window)) | |
| 1916 { | |
| 1917 struct window *w = decode_window (window); | |
| 1918 display_line_dynarr *dla = window_display_lines (w, CURRENT_DISP); | |
| 1919 int num_lines = Dynarr_length (dla); | |
| 1920 struct display_line *dl; | |
| 1921 | |
| 1922 /* No lines - no clipped lines */ | |
| 4967 | 1923 if (num_lines == 0 || (num_lines == 1 && Dynarr_begin (dla)->modeline)) |
| 442 | 1924 return Qnil; |
| 1925 | |
| 1926 dl = Dynarr_atp (dla, num_lines - 1); | |
| 1927 if (dl->clip == 0) | |
| 1928 return Qnil; | |
| 1929 | |
| 1930 return make_int (dl->ascent + dl->descent - dl->clip); | |
| 1931 } | |
| 1932 | |
| 428 | 1933 DEFUN ("set-window-point", Fset_window_point, 2, 2, 0, /* |
| 1934 Make point value in WINDOW be at position POS in WINDOW's buffer. | |
| 1161 | 1935 If WINDOW is the selected window, and window's buffer is the current |
| 1936 buffer, this actually changes the buffer's point instead of the window's | |
| 1937 point. (The equivalence of the selected window's point with its buffer's | |
| 1938 point is maintained throughout XEmacs. However, enforcing the additional | |
| 1939 restriction on the current buffer is "bug compatible" with FSF and is | |
| 1940 perhaps more logical.) | |
| 428 | 1941 */ |
| 1942 (window, pos)) | |
| 1943 { | |
| 1944 struct window *w = decode_window (window); | |
| 1945 | |
| 1946 CHECK_INT_COERCE_MARKER (pos); | |
| 1161 | 1947 |
| 844 | 1948 /* Don't dereference selected-window because there may not |
| 1949 be one -- e.g. at startup */ | |
| 1161 | 1950 if (EQ (wrap_window (w), Fselected_window (Qnil)) |
| 1951 && EQ (w->buffer, Fcurrent_buffer ())) | |
| 1952 Fgoto_char (pos, Qnil); | |
| 428 | 1953 else |
| 1954 set_marker_restricted (w->pointm[CURRENT_DISP], pos, w->buffer); | |
| 1955 | |
| 1956 MARK_POINT_CHANGED; | |
| 1957 return pos; | |
| 1958 } | |
| 1959 | |
| 1960 DEFUN ("set-window-start", Fset_window_start, 2, 3, 0, /* | |
| 1961 Make display in WINDOW start at position POS in WINDOW's buffer. | |
| 1962 Optional third arg NOFORCE non-nil inhibits next redisplay | |
| 1963 from overriding motion of point in order to display at this exact start. | |
| 1964 */ | |
| 1965 (window, pos, noforce)) | |
| 1966 { | |
| 1967 struct window *w = decode_window (window); | |
| 1968 | |
| 1969 CHECK_INT_COERCE_MARKER (pos); | |
| 1970 set_marker_restricted (w->start[CURRENT_DISP], pos, w->buffer); | |
| 1971 /* this is not right, but much easier than doing what is right. */ | |
| 1972 /* w->start_at_line_beg = 0; */ | |
| 1973 /* WTF is the above supposed to mean? GE */ | |
| 1974 w->start_at_line_beg = beginning_of_line_p (XBUFFER (w->buffer), | |
| 1975 marker_position (w->start[CURRENT_DISP])); | |
| 1976 if (NILP (noforce)) | |
| 1977 w->force_start = 1; | |
| 1978 w->redo_modeline = 1; | |
| 1979 SET_LAST_MODIFIED (w, 0); | |
| 1980 SET_LAST_FACECHANGE (w); | |
| 1981 | |
| 1982 MARK_WINDOWS_CHANGED (w); | |
| 1983 | |
| 1984 return pos; | |
| 1985 } | |
| 1986 | |
| 1987 DEFUN ("window-dedicated-p", Fwindow_dedicated_p, 1, 1, 0, /* | |
| 1988 Return WINDOW's dedicated object, usually t or nil. | |
| 1989 See also `set-window-dedicated-p'. | |
| 1990 */ | |
| 1991 (window)) | |
| 1992 { | |
| 1993 return decode_window (window)->dedicated; | |
| 1994 } | |
| 1995 | |
| 1996 DEFUN ("set-window-dedicated-p", Fset_window_dedicated_p, 2, 2, 0, /* | |
| 1997 Control whether WINDOW is dedicated to the buffer it displays. | |
| 1998 If it is dedicated, Emacs will not automatically change | |
| 1999 which buffer appears in it. | |
| 2000 The second argument is the new value for the dedication flag; | |
| 2001 non-nil means yes. | |
| 2002 */ | |
| 2003 (window, arg)) | |
| 2004 { | |
| 2005 struct window *w = decode_window (window); | |
| 2006 | |
| 2007 w->dedicated = NILP (arg) ? Qnil : Qt; | |
| 2008 | |
| 2009 return w->dedicated; | |
| 2010 } | |
| 2011 | |
| 2012 /* FSFmacs has window-display-table here. We have display table as a | |
| 2013 specifier. */ | |
| 2014 | |
| 2015 | |
| 2016 /* Record info on buffer window w is displaying | |
| 2017 when it is about to cease to display that buffer. */ | |
| 2018 static void | |
| 2019 unshow_buffer (struct window *w) | |
| 2020 { | |
| 2021 Lisp_Object buf = w->buffer; | |
| 844 | 2022 struct buffer *b = XBUFFER (buf); |
| 2023 | |
|
5050
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Ben Wing <ben@xemacs.org>
parents:
4967
diff
changeset
|
2024 assert (b == XMARKER (w->pointm[CURRENT_DISP])->buffer); |
| 428 | 2025 |
| 2026 /* FSF disables this check, so I'll do it too. I hope it won't | |
| 2027 break things. --ben */ | |
| 2028 #if 0 | |
| 2029 if (w == XWINDOW (Fselected_window (Qnil)) | |
| 2030 || ! EQ (buf, XWINDOW (Fselected_window (Qnil))->buffer)) | |
| 2031 /* Do this except when the selected window's buffer | |
| 2032 is being removed from some other window. */ | |
| 2033 #endif | |
| 2034 /* last_window_start records the start position that this buffer | |
| 2035 had in the last window to be disconnected from it. | |
| 2036 Now that this statement is unconditional, | |
| 2037 it is possible for the buffer to be displayed in the | |
| 2038 selected window, while last_window_start reflects another | |
| 2039 window which was recently showing the same buffer. | |
| 2040 Some people might say that might be a good thing. Let's see. */ | |
| 2041 XBUFFER (buf)->last_window_start = | |
| 2042 marker_position (w->start[CURRENT_DISP]); | |
| 2043 | |
| 2044 /* Point in the selected window's buffer | |
| 2045 is actually stored in that buffer, and the window's pointm isn't used. | |
| 2046 So don't clobber point in that buffer. */ | |
| 2047 if (! EQ (buf, XWINDOW (Fselected_window (Qnil))->buffer)) | |
| 844 | 2048 BUF_SET_PT (b, |
| 2049 charbpos_clip_to_bounds | |
| 2050 (BUF_BEGV (b), | |
| 2051 marker_position (w->pointm[CURRENT_DISP]), | |
| 2052 BUF_ZV (b))); | |
| 2053 | |
| 2054 { | |
| 2055 Lisp_Object marker = Fgethash (buf, w->saved_point_cache, Qnil); | |
| 2056 int selected = EQ (wrap_window (w), Fselected_window (Qnil)); | |
| 2057 | |
| 2058 if (NILP (marker)) | |
| 2059 { | |
| 2060 marker = Fmake_marker (); | |
| 2061 Fputhash (buf, marker, w->saved_point_cache); | |
| 2062 } | |
| 2063 Fset_marker (marker, | |
| 2064 selected ? make_int (BUF_PT (b)) : w->pointm[CURRENT_DISP], | |
| 2065 buf); | |
| 2066 | |
| 2067 marker = Fgethash (buf, w->saved_last_window_start_cache, Qnil); | |
| 2068 | |
| 2069 if (NILP (marker)) | |
| 2070 { | |
| 2071 marker = Fmake_marker (); | |
| 2072 Fputhash (buf, marker, w->saved_last_window_start_cache); | |
| 2073 } | |
| 2074 Fset_marker (marker, w->start[CURRENT_DISP], buf); | |
| 2075 } | |
| 428 | 2076 } |
| 2077 | |
| 2078 /* Put REPLACEMENT into the window structure in place of OLD. */ | |
| 2079 static void | |
| 2080 replace_window (Lisp_Object old, Lisp_Object replacement) | |
| 2081 { | |
| 2082 Lisp_Object tem; | |
| 2083 struct window *o = XWINDOW (old), *p = XWINDOW (replacement); | |
| 2084 | |
| 2085 /* If OLD is its frame's root_window, then replacement is the new | |
| 2086 root_window for that frame. */ | |
| 2087 | |
| 2088 if (EQ (old, FRAME_ROOT_WINDOW (XFRAME (o->frame)))) | |
| 2089 FRAME_ROOT_WINDOW (XFRAME (o->frame)) = replacement; | |
| 2090 | |
| 2091 WINDOW_LEFT (p) = WINDOW_LEFT (o); | |
| 2092 WINDOW_TOP (p) = WINDOW_TOP (o); | |
| 2093 WINDOW_WIDTH (p) = WINDOW_WIDTH (o); | |
| 2094 WINDOW_HEIGHT (p) = WINDOW_HEIGHT (o); | |
| 2095 | |
| 2096 p->next = tem = o->next; | |
| 2097 if (!NILP (tem)) | |
| 2098 XWINDOW (tem)->prev = replacement; | |
| 2099 | |
| 2100 p->prev = tem = o->prev; | |
| 2101 if (!NILP (tem)) | |
| 2102 XWINDOW (tem)->next = replacement; | |
| 2103 | |
| 2104 p->parent = tem = o->parent; | |
| 2105 if (!NILP (tem)) | |
| 2106 { | |
| 2107 if (EQ (XWINDOW (tem)->vchild, old)) | |
| 2108 XWINDOW (tem)->vchild = replacement; | |
| 2109 if (EQ (XWINDOW (tem)->hchild, old)) | |
| 2110 XWINDOW (tem)->hchild = replacement; | |
| 2111 } | |
| 2112 | |
| 2113 /* #### Here, if replacement is a vertical combination | |
| 2114 and so is its new parent, we should make replacement's | |
| 2115 children be children of that parent instead. */ | |
| 442 | 2116 |
| 2117 ERROR_CHECK_SUBWINDOW_CACHE (p); | |
| 2118 } | |
| 2119 | |
| 2120 static void | |
| 2121 window_unmap_subwindows (struct window* w) | |
| 2122 { | |
| 2123 assert (!NILP (w->subwindow_instance_cache)); | |
| 2124 elisp_maphash (unmap_subwindow_instance_cache_mapper, | |
| 2125 w->subwindow_instance_cache, (void*)1); | |
| 428 | 2126 } |
| 2127 | |
| 2128 /* we're deleting W; set the structure of W to indicate this. */ | |
| 2129 | |
| 2130 static void | |
| 2131 mark_window_as_deleted (struct window *w) | |
| 2132 { | |
| 442 | 2133 /* The window instance cache is going away now, so need to get the |
| 2134 cachels reset by redisplay. */ | |
| 2135 MARK_FRAME_SUBWINDOWS_CHANGED (XFRAME (WINDOW_FRAME (w))); | |
| 2136 | |
| 2137 /* The cache is going away. If we leave unmapping to | |
| 2138 reset_subwindow_cachels then we get in a situation where the | |
| 2139 domain (the window) has been deleted but we still need access to | |
| 2140 its attributes in order to unmap windows properly. Since the | |
| 2141 subwindows are going to get GC'd anyway as a result of the domain | |
| 2142 going away, it is safer to just unmap them all while we know the | |
| 2143 domain is still valid. */ | |
| 2144 ERROR_CHECK_SUBWINDOW_CACHE (w); | |
| 2145 window_unmap_subwindows (w); | |
| 2146 | |
| 617 | 2147 /* Free the extra data structures attached to windows immediately so |
| 2148 they don't sit around consuming excess space. They will be | |
| 2149 reinitialized by the window-configuration code as necessary. */ | |
|
5127
a9c41067dd88
more cleanups, terminology clarification, lots of doc work
Ben Wing <ben@xemacs.org>
parents:
5126
diff
changeset
|
2150 finalize_window (wrap_window (w)); |
| 617 | 2151 |
| 1149 | 2152 /* Nobody should be accessing anything in this object any more, |
| 618 | 2153 and making them Qnil allows for better GC'ing in case a pointer |
| 2154 to the dead window continues to hang around. Zero all other | |
| 2155 structs in case someone tries to access something through them. | |
| 2156 | |
| 2157 (So, in point of fact, we zero out all of the "saved" slots, | |
| 2158 which are obviously restored from the window config, plus the | |
| 2159 slots which were already zeroed.) | |
| 617 | 2160 |
| 2161 As an example of why setting the values to Qnil is good, here | |
| 2162 is an old comment: | |
| 2163 | |
| 2164 In the loop | |
| 428 | 2165 (while t (split-window) (delete-window)) |
| 2166 we end up with a tree of deleted windows which are all connected | |
| 2167 through the `next' slot. This might not seem so bad, as they're | |
| 2168 deleted, and will presumably be GCed - but if even *one* of those | |
| 2169 windows is still being pointed to, by the user, or by a window | |
| 1149 | 2170 configuration, then *all* of those windows stick around. */ |
| 617 | 2171 |
| 618 | 2172 #define WINDOW_SLOT(slot) |
| 2173 #define WINDOW_SAVED_SLOT(slot, compare) w->slot = Qnil; | |
| 617 | 2174 #include "winslots.h" |
| 428 | 2175 |
| 618 | 2176 w->next = Qnil; |
| 2177 w->prev = Qnil; | |
| 2178 w->hchild = Qnil; | |
| 2179 w->vchild = Qnil; | |
| 2180 w->parent = Qnil; | |
| 2181 w->subwindow_instance_cache = Qnil; | |
| 2182 | |
| 428 | 2183 w->dead = 1; |
| 853 | 2184 note_object_deleted (wrap_window (w)); |
| 428 | 2185 } |
| 2186 | |
| 1207 | 2187 /* Check if window contains pwindow. */ |
| 2188 | |
| 2189 static int | |
| 2190 contains_window (Lisp_Object window, Lisp_Object pwindow) | |
| 2191 { | |
| 2192 while (!NILP (pwindow)) | |
| 2193 { | |
| 2194 if (EQ (window, pwindow)) | |
| 2195 return 1; | |
| 2196 pwindow = XWINDOW (pwindow)->parent; | |
| 2197 } | |
| 2198 return 0; | |
| 2199 } | |
| 2200 | |
| 428 | 2201 DEFUN ("delete-window", Fdelete_window, 0, 2, "", /* |
| 2202 Remove WINDOW from the display. Default is selected window. | |
| 444 | 2203 If window is the only one on its frame, the frame is deleted as well. |
| 428 | 2204 Normally, you cannot delete the last non-minibuffer-only frame (you must |
| 2205 use `save-buffers-kill-emacs' or `kill-emacs'). However, if optional | |
| 2206 second argument FORCE is non-nil, you can delete the last frame. (This | |
| 2207 will automatically call `save-buffers-kill-emacs'.) | |
| 2208 */ | |
| 2209 (window, force)) | |
| 2210 { | |
| 2211 /* This function can GC if this is the only window in the frame */ | |
| 2212 struct window *w; | |
| 2213 Lisp_Object parent; | |
| 2214 struct window *par; | |
| 2215 Lisp_Object frame; | |
| 2216 struct frame *f; | |
| 2217 struct device *d; | |
| 2218 | |
| 2219 /* Note: this function is called by other C code on non-leaf | |
| 2220 windows. */ | |
| 2221 | |
| 2222 /* Do the equivalent of decode_window() but don't error out on | |
| 2223 deleted window; it's OK to delete an already-deleted window. */ | |
| 2224 if (NILP (window)) | |
| 2225 window = Fselected_window (Qnil); | |
| 2226 else | |
| 2227 CHECK_WINDOW (window); | |
| 442 | 2228 |
| 428 | 2229 w = XWINDOW (window); |
| 2230 | |
| 2231 /* It's okay to delete an already-deleted window. */ | |
| 2232 if (! WINDOW_LIVE_P (w)) | |
| 2233 return Qnil; | |
| 2234 | |
| 853 | 2235 check_allowed_operation (OPERATION_DELETE_OBJECT, window, Qnil); |
| 2236 | |
| 428 | 2237 frame = WINDOW_FRAME (w); |
| 2238 f = XFRAME (frame); | |
| 2239 d = XDEVICE (FRAME_DEVICE (f)); | |
| 2240 | |
| 2241 if (TOP_LEVEL_WINDOW_P (w)) | |
| 2242 { | |
| 2243 if (NILP (memq_no_quit (frame, DEVICE_FRAME_LIST (d)))) | |
| 2244 /* this frame isn't fully initialized yet; don't blow up. */ | |
| 2245 return Qnil; | |
| 2246 | |
| 2247 if (MINI_WINDOW_P (XWINDOW (window))) | |
| 563 | 2248 signal_error (Qinvalid_operation, "Attempt to delete the minibuffer window", Qunbound); |
| 428 | 2249 |
| 2250 /* It has been suggested that it's a good thing for C-x 0 to have this | |
| 2251 behavior, but not such a good idea for #'delete-window to have it. | |
| 2252 Maybe C-x 0 should be bound to something else, or maybe frame | |
| 2253 deletion should only happen when this is called interactively. | |
| 2254 */ | |
| 2255 delete_frame_internal (f, !NILP (force), 0, 0); | |
| 2256 return Qnil; | |
| 2257 } | |
| 2258 | |
| 2259 /* At this point, we know the window has a parent. */ | |
| 2260 parent = w->parent; | |
| 2261 par = XWINDOW (parent); | |
| 2262 | |
| 2263 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f); | |
| 430 | 2264 /* It's quite likely that deleting a window will result in |
| 2265 subwindows needing to be deleted also (since they are cached | |
| 2266 per-window). So we mark them as changed, so that the cachels will | |
| 2267 get reset by redisplay and thus deleted subwindows can get | |
| 2268 GC'd. */ | |
| 2269 MARK_FRAME_SUBWINDOWS_CHANGED (f); | |
| 428 | 2270 |
| 2271 /* Are we trying to delete any frame's selected window? | |
| 2272 Note that we could be dealing with a non-leaf window | |
| 2273 where the selected window is one of our children. | |
| 2274 So, we check by scanning all the ancestors of the | |
| 2275 frame's selected window and comparing each one with | |
| 2276 WINDOW. */ | |
| 1207 | 2277 if (contains_window (window, FRAME_SELECTED_WINDOW (f))) |
| 2278 { | |
| 2279 Lisp_Object alternative; | |
| 2280 alternative = Fnext_window (window, Qlambda, Qnil, Qnil); | |
| 2281 | |
| 2282 /* #### */ | |
| 2283 /* If we're about to delete the selected window on the | |
| 2284 selected frame, then we should use Fselect_window to select | |
| 2285 the new window. On the other hand, if we're about to | |
| 2286 delete the selected window on any other frame, we shouldn't do | |
| 2287 anything but set the frame's selected_window slot. */ | |
| 2288 if (EQ (frame, Fselected_frame (Qnil))) | |
| 2289 Fselect_window (alternative, Qnil); | |
| 2290 else | |
| 2291 set_frame_selected_window (f, alternative); | |
| 2292 } | |
| 2293 | |
| 2294 /* Some display parameters (gutter display specifically) depend on | |
| 2295 FRAME_LAST_NONMINIBUF (f) to be set to a live window. Ensure that. */ | |
| 2296 if (contains_window (window, FRAME_LAST_NONMINIBUF_WINDOW (f))) | |
| 2297 f->last_nonminibuf_window = Fnext_window (window, Qlambda, Qnil, Qnil); | |
| 428 | 2298 |
| 2299 /* w->buffer is nil in a non-leaf window; in this case, | |
| 2300 get rid of the markers we maintain that point into that buffer. */ | |
| 2301 if (!NILP (w->buffer)) | |
| 2302 { | |
| 2303 unshow_buffer (w); | |
| 2304 unchain_marker (w->pointm[CURRENT_DISP]); | |
| 2305 unchain_marker (w->pointm[DESIRED_DISP]); | |
| 2306 unchain_marker (w->pointm[CMOTION_DISP]); | |
| 2307 unchain_marker (w->start[CURRENT_DISP]); | |
| 2308 unchain_marker (w->start[DESIRED_DISP]); | |
| 2309 unchain_marker (w->start[CMOTION_DISP]); | |
| 2310 unchain_marker (w->sb_point); | |
| 1149 | 2311 w->buffer = Qnil; |
| 428 | 2312 } |
| 2313 | |
| 2314 /* close up the hole in the sibling list */ | |
| 2315 if (!NILP (w->next)) | |
| 2316 XWINDOW (w->next)->prev = w->prev; | |
| 2317 if (!NILP (w->prev)) | |
| 2318 XWINDOW (w->prev)->next = w->next; | |
| 2319 if (EQ (window, par->hchild)) | |
| 2320 par->hchild = w->next; | |
| 2321 if (EQ (window, par->vchild)) | |
| 2322 par->vchild = w->next; | |
| 2323 | |
| 2324 /* Find one of our siblings to give our space to. */ | |
| 2325 { | |
| 2326 Lisp_Object sib = w->prev; | |
| 2327 if (NILP (sib)) | |
| 2328 { | |
| 2329 /* If w gives its space to its next sibling, that sibling needs | |
| 2330 to have its top/left side pulled back to where w's is. | |
| 2331 set_window_{height,width} will re-position the sibling's | |
| 2332 children. */ | |
| 2333 sib = w->next; | |
| 2334 WINDOW_TOP (XWINDOW (sib)) = WINDOW_TOP (w); | |
| 2335 WINDOW_LEFT (XWINDOW (sib)) = WINDOW_LEFT (w); | |
| 2336 } | |
| 2337 | |
| 2338 /* Stretch that sibling. */ | |
| 2339 if (!NILP (par->vchild)) | |
| 2340 set_window_pixheight | |
| 2341 (sib, (WINDOW_HEIGHT (XWINDOW (sib)) + WINDOW_HEIGHT (w)), 1); | |
| 2342 if (!NILP (par->hchild)) | |
| 2343 set_window_pixwidth | |
| 2344 (sib, (WINDOW_WIDTH (XWINDOW (sib)) + WINDOW_WIDTH (w)), 1); | |
| 2345 } | |
| 2346 | |
| 2347 /* If parent now has only one child, | |
| 2348 put the child into the parent's place. */ | |
| 2349 { | |
| 2350 Lisp_Object parchild = par->hchild; | |
| 2351 if (NILP (parchild)) | |
| 2352 parchild = par->vchild; | |
| 2353 if (NILP (XWINDOW (parchild)->next)) | |
| 2354 { | |
| 2355 replace_window (parent, parchild); | |
| 2356 mark_window_as_deleted (XWINDOW (parent)); | |
| 2357 } | |
| 2358 } | |
| 2359 | |
| 2360 /* Since we may be deleting combination windows, we must make sure that | |
| 2361 not only W but all its children have been marked as deleted. */ | |
| 2362 if (!NILP (w->hchild)) | |
| 2363 delete_all_subwindows (XWINDOW (w->hchild)); | |
| 2364 else if (!NILP (w->vchild)) | |
| 2365 delete_all_subwindows (XWINDOW (w->vchild)); | |
| 2366 | |
| 1752 | 2367 /* Warning: mark_window_as_deleted calls window_unmap_subwindows and |
| 2368 therefore redisplay, so it requires the mirror structure to be | |
| 2369 correct. We must dirty the mirror before it is called. */ | |
| 2370 f->mirror_dirty = 1; | |
| 2371 | |
| 428 | 2372 mark_window_as_deleted (w); |
| 2373 | |
| 2374 return Qnil; | |
| 2375 } | |
| 2376 | |
| 2377 | |
| 2378 DEFUN ("next-window", Fnext_window, 0, 4, 0, /* | |
| 442 | 2379 Return the next window after WINDOW in the canonical ordering of windows. |
| 428 | 2380 If omitted, WINDOW defaults to the selected window. |
| 2381 | |
| 2382 Optional second arg MINIBUF t means count the minibuffer window even | |
| 2383 if not active. MINIBUF nil or omitted means count the minibuffer iff | |
| 2384 it is active. MINIBUF neither t nor nil means not to count the | |
| 2385 minibuffer even if it is active. | |
| 2386 | |
| 2387 Several frames may share a single minibuffer; if the minibuffer | |
| 2388 counts, all windows on all frames that share that minibuffer count | |
| 2389 too. Therefore, `next-window' can be used to iterate through the | |
| 2390 set of windows even when the minibuffer is on another frame. If the | |
| 2391 minibuffer does not count, only windows from WINDOW's frame count. | |
| 2392 | |
| 444 | 2393 By default, only the windows in the selected frame are considered. |
| 2394 The optional argument WHICH-FRAMES changes this behavior: | |
| 2395 WHICH-FRAMES = `visible' means search windows on all visible frames. | |
| 448 | 2396 WHICH-FRAMES = 0 means search windows on all visible and iconified frames. |
| 444 | 2397 WHICH-FRAMES = t means search windows on all frames including invisible frames. |
| 2398 WHICH-FRAMES = a frame means search only windows on that frame. | |
| 2399 Anything else means restrict to the selected frame. | |
| 2400 | |
| 2401 The optional fourth argument WHICH-DEVICES further clarifies on which | |
| 2402 devices to search for frames as specified by WHICH-FRAMES. This value | |
| 2403 is only meaningful if WHICH-FRAMES is non-nil. | |
| 2404 If nil or omitted, search all devices on the selected console. | |
| 2405 If a device, only search that device. | |
| 2406 If a console, search all devices on that console. | |
| 2407 If a device type, search all devices of that type. | |
| 2408 If `window-system', search all window-system devices. | |
| 2409 Any other non-nil value means search all devices. | |
| 2410 | |
| 2411 If you use consistent values for MINIBUF, WHICH-FRAMES, and WHICH-DEVICES, | |
| 2412 you can use `next-window' to iterate through the entire cycle of | |
| 2413 acceptable windows, eventually ending up back at the window you started with. | |
| 428 | 2414 `previous-window' traverses the same cycle, in the reverse order. |
| 2415 */ | |
| 444 | 2416 (window, minibuf, which_frames, which_devices)) |
| 428 | 2417 { |
| 2418 Lisp_Object tem; | |
| 2419 Lisp_Object start_window; | |
| 2420 | |
| 2421 if (NILP (window)) | |
| 2422 window = Fselected_window (Qnil); | |
| 2423 else | |
| 2424 CHECK_LIVE_WINDOW (window); | |
| 2425 | |
| 2426 start_window = window; | |
| 2427 | |
| 2428 /* minibuf == nil may or may not include minibuffers. | |
| 2429 Decide if it does. */ | |
| 2430 if (NILP (minibuf)) | |
| 2431 minibuf = (minibuf_level ? minibuf_window : Qlambda); | |
| 2432 else if (! EQ (minibuf, Qt)) | |
| 2433 minibuf = Qlambda; | |
| 442 | 2434 /* Now `minibuf' is one of: |
| 2435 t => count all minibuffer windows | |
| 2436 lambda => count none of them | |
| 428 | 2437 or a specific minibuffer window (the active one) to count. */ |
| 2438 | |
| 444 | 2439 /* which_frames == nil doesn't specify which frames to include. */ |
| 2440 if (NILP (which_frames)) | |
| 2441 which_frames = (! EQ (minibuf, Qlambda) | |
| 428 | 2442 ? (FRAME_MINIBUF_WINDOW |
| 2443 (XFRAME | |
| 2444 (WINDOW_FRAME | |
| 2445 (XWINDOW (window))))) | |
| 2446 : Qnil); | |
| 444 | 2447 else if (EQ (which_frames, Qvisible)) |
| 428 | 2448 ; |
| 444 | 2449 else if (ZEROP (which_frames)) |
| 428 | 2450 ; |
| 444 | 2451 else if (FRAMEP (which_frames) && ! EQ (which_frames, Fwindow_frame (window))) |
| 2452 /* If which_frames is a frame and window arg isn't on that frame, just | |
| 428 | 2453 return the first window on the frame. */ |
| 444 | 2454 return frame_first_window (XFRAME (which_frames)); |
| 2455 else if (! EQ (which_frames, Qt)) | |
| 2456 which_frames = Qnil; | |
| 2457 /* Now `which_frames' is one of: | |
| 442 | 2458 t => search all frames |
| 2459 nil => search just the current frame | |
| 2460 visible => search just visible frames | |
| 2461 0 => search visible and iconified frames | |
| 2462 a window => search the frame that window belongs to. */ | |
| 428 | 2463 |
| 2464 /* Do this loop at least once, to get the next window, and perhaps | |
| 2465 again, if we hit the minibuffer and that is not acceptable. */ | |
| 2466 do | |
| 2467 { | |
| 2468 /* Find a window that actually has a next one. This loop | |
| 2469 climbs up the tree. */ | |
| 2470 while (tem = XWINDOW (window)->next, NILP (tem)) | |
| 2471 if (tem = XWINDOW (window)->parent, !NILP (tem)) | |
| 2472 window = tem; | |
| 2473 else /* window must be minibuffer window now */ | |
| 2474 { | |
| 2475 /* We've reached the end of this frame. | |
| 2476 Which other frames are acceptable? */ | |
| 2477 tem = WINDOW_FRAME (XWINDOW (window)); | |
| 2478 | |
| 444 | 2479 if (! NILP (which_frames)) |
| 428 | 2480 { |
| 442 | 2481 Lisp_Object tem1 = tem; |
| 444 | 2482 tem = next_frame (tem, which_frames, which_devices); |
| 442 | 2483 |
| 428 | 2484 /* In the case where the minibuffer is active, |
| 2485 and we include its frame as well as the selected one, | |
| 2486 next_frame may get stuck in that frame. | |
| 2487 If that happens, go back to the selected frame | |
| 2488 so we can complete the cycle. */ | |
| 2489 if (EQ (tem, tem1)) | |
| 793 | 2490 tem = wrap_frame (selected_frame ()); |
| 428 | 2491 } |
| 2492 | |
| 2493 tem = FRAME_ROOT_WINDOW (XFRAME (tem)); | |
| 2494 break; | |
| 2495 } | |
| 2496 | |
| 2497 window = tem; | |
| 2498 | |
| 2499 /* If we're in a combination window, find its first child and | |
| 2500 recurse on that. Otherwise, we've found the window we want. */ | |
| 2501 while (1) | |
| 2502 { | |
| 2503 if (!NILP (XWINDOW (window)->hchild)) | |
| 2504 window = XWINDOW (window)->hchild; | |
| 2505 else if (!NILP (XWINDOW (window)->vchild)) | |
| 2506 window = XWINDOW (window)->vchild; | |
| 2507 else break; | |
| 2508 } | |
| 2509 } | |
| 2510 /* Which windows are acceptable? | |
| 2511 Exit the loop and accept this window if | |
| 2512 this isn't a minibuffer window, | |
| 2513 or we're accepting all minibuffer windows, | |
| 2514 or this is the active minibuffer and we are accepting that one, or | |
| 2515 we've come all the way around and we're back at the original window. */ | |
| 2516 while (MINI_WINDOW_P (XWINDOW (window)) | |
| 2517 && ! EQ (minibuf, Qt) | |
| 2518 && ! EQ (minibuf, window) | |
| 2519 && ! EQ (window, start_window)); | |
| 2520 | |
| 2521 return window; | |
| 2522 } | |
| 2523 | |
| 2524 DEFUN ("previous-window", Fprevious_window, 0, 4, 0, /* | |
| 442 | 2525 Return the window preceding WINDOW in the canonical ordering of windows. |
| 428 | 2526 If omitted, WINDOW defaults to the selected window. |
| 2527 | |
| 2528 Optional second arg MINIBUF t means count the minibuffer window even | |
| 2529 if not active. MINIBUF nil or omitted means count the minibuffer iff | |
| 2530 it is active. MINIBUF neither t nor nil means not to count the | |
| 2531 minibuffer even if it is active. | |
| 2532 | |
| 2533 Several frames may share a single minibuffer; if the minibuffer | |
| 2534 counts, all windows on all frames that share that minibuffer count | |
| 2535 too. Therefore, `previous-window' can be used to iterate through | |
| 2536 the set of windows even when the minibuffer is on another frame. If | |
| 442 | 2537 the minibuffer does not count, only windows from WINDOW's frame count. |
| 2538 | |
| 444 | 2539 By default, only the windows in the selected frame are considered. |
| 2540 The optional argument WHICH-FRAMES changes this behavior: | |
| 2541 WHICH-FRAMES = `visible' means search windows on all visible frames. | |
| 448 | 2542 WHICH-FRAMES = 0 means search windows on all visible and iconified frames. |
| 444 | 2543 WHICH-FRAMES = t means search windows on all frames including invisible frames. |
| 2544 WHICH-FRAMES = a frame means search only windows on that frame. | |
| 2545 Anything else means restrict to the selected frame. | |
| 2546 | |
| 2547 The optional fourth argument WHICH-DEVICES further clarifies on which | |
| 2548 devices to search for frames as specified by WHICH-FRAMES. This value | |
| 2549 is only meaningful if WHICH-FRAMES is non-nil. | |
| 2550 If nil or omitted, search all devices on the selected console. | |
| 2551 If a device, only search that device. | |
| 2552 If a console, search all devices on that console. | |
| 2553 If a device type, search all devices of that type. | |
| 2554 If `window-system', search all window-system devices. | |
| 2555 Any other non-nil value means search all devices. | |
| 2556 | |
| 2557 If you use consistent values for MINIBUF, WHICH-FRAMES, and WHICH-DEVICES, | |
| 2558 you can use `previous-window' to iterate through the entire cycle of | |
| 2559 acceptable windows, eventually ending up back at the window you started with. | |
| 428 | 2560 `next-window' traverses the same cycle, in the reverse order. |
| 2561 */ | |
| 444 | 2562 (window, minibuf, which_frames, devices)) |
| 428 | 2563 { |
| 2564 Lisp_Object tem; | |
| 2565 Lisp_Object start_window; | |
| 2566 | |
| 2567 if (NILP (window)) | |
| 2568 window = Fselected_window (Qnil); | |
| 2569 else | |
| 2570 CHECK_LIVE_WINDOW (window); | |
| 2571 | |
| 2572 start_window = window; | |
| 2573 | |
| 2574 /* minibuf == nil may or may not include minibuffers. | |
| 2575 Decide if it does. */ | |
| 2576 if (NILP (minibuf)) | |
| 2577 minibuf = (minibuf_level ? minibuf_window : Qlambda); | |
| 2578 else if (! EQ (minibuf, Qt)) | |
| 2579 minibuf = Qlambda; | |
| 442 | 2580 /* Now `minibuf' is one of: |
| 2581 t => count all minibuffer windows | |
| 2582 lambda => count none of them | |
| 428 | 2583 or a specific minibuffer window (the active one) to count. */ |
| 2584 | |
| 444 | 2585 /* which_frames == nil doesn't specify which frames to include. |
| 428 | 2586 Decide which frames it includes. */ |
| 444 | 2587 if (NILP (which_frames)) |
| 2588 which_frames = (! EQ (minibuf, Qlambda) | |
| 428 | 2589 ? (FRAME_MINIBUF_WINDOW |
| 2590 (XFRAME | |
| 2591 (WINDOW_FRAME | |
| 2592 (XWINDOW (window))))) | |
| 2593 : Qnil); | |
| 444 | 2594 else if (EQ (which_frames, Qvisible)) |
| 428 | 2595 ; |
| 444 | 2596 else if (ZEROP (which_frames)) |
| 428 | 2597 ; |
| 444 | 2598 else if (FRAMEP (which_frames) && ! EQ (which_frames, Fwindow_frame (window))) |
| 2599 /* If which_frames is a frame and window arg isn't on that frame, just | |
| 428 | 2600 return the first window on the frame. */ |
| 444 | 2601 return frame_first_window (XFRAME (which_frames)); |
| 2602 else if (! EQ (which_frames, Qt)) | |
| 2603 which_frames = Qnil; | |
| 2604 /* Now `which_frames' is one of: | |
| 442 | 2605 t => search all frames |
| 2606 nil => search just the current frame | |
| 2607 visible => search just visible frames | |
| 2608 0 => search visible and iconified frames | |
| 2609 a window => search the frame that window belongs to. */ | |
| 428 | 2610 |
| 2611 /* Do this loop at least once, to get the next window, and perhaps | |
| 2612 again, if we hit the minibuffer and that is not acceptable. */ | |
| 2613 do | |
| 2614 { | |
| 2615 /* Find a window that actually has a next one. This loop | |
| 2616 climbs up the tree. */ | |
| 2617 while (tem = XWINDOW (window)->prev, NILP (tem)) | |
| 2618 if (tem = XWINDOW (window)->parent, !NILP (tem)) | |
| 2619 window = tem; | |
| 2620 else /* window must be minibuffer window now */ | |
| 2621 { | |
| 2622 /* We have found the top window on the frame. | |
| 2623 Which frames are acceptable? */ | |
| 2624 tem = WINDOW_FRAME (XWINDOW (window)); | |
| 2625 | |
| 444 | 2626 if (! NILP (which_frames)) |
| 442 | 2627 /* It's actually important that we use previous_frame here, |
| 428 | 2628 rather than next_frame. All the windows acceptable |
| 2629 according to the given parameters should form a ring; | |
| 2630 Fnext_window and Fprevious_window should go back and | |
| 2631 forth around the ring. If we use next_frame here, | |
| 2632 then Fnext_window and Fprevious_window take different | |
| 2633 paths through the set of acceptable windows. | |
| 2634 window_loop assumes that these `ring' requirement are | |
| 2635 met. */ | |
| 2636 { | |
| 442 | 2637 Lisp_Object tem1 = tem; |
| 444 | 2638 tem = previous_frame (tem, which_frames, devices); |
| 428 | 2639 /* In the case where the minibuffer is active, |
| 2640 and we include its frame as well as the selected one, | |
| 2641 next_frame may get stuck in that frame. | |
| 2642 If that happens, go back to the selected frame | |
| 2643 so we can complete the cycle. */ | |
| 2644 if (EQ (tem, tem1)) | |
| 793 | 2645 tem = wrap_frame (selected_frame ()); |
| 428 | 2646 } |
| 2647 | |
| 2648 /* If this frame has a minibuffer, find that window first, | |
| 2649 because it is conceptually the last window in that frame. */ | |
| 2650 if (FRAME_HAS_MINIBUF_P (XFRAME (tem))) | |
| 2651 tem = FRAME_MINIBUF_WINDOW (XFRAME (tem)); | |
| 2652 else | |
| 2653 tem = FRAME_ROOT_WINDOW (XFRAME (tem)); | |
| 2654 | |
| 2655 break; | |
| 2656 } | |
| 2657 | |
| 2658 window = tem; | |
| 2659 | |
| 2660 /* If we're in a combination window, find its first child and | |
| 2661 recurse on that. Otherwise, we've found the window we want. */ | |
| 2662 while (1) | |
| 2663 { | |
| 2664 if (!NILP (XWINDOW (window)->hchild)) | |
| 2665 window = XWINDOW (window)->hchild; | |
| 2666 else if (!NILP (XWINDOW (window)->vchild)) | |
| 2667 window = XWINDOW (window)->vchild; | |
| 2668 else break; | |
| 2669 while (tem = XWINDOW (window)->next, !NILP (tem)) | |
| 2670 window = tem; | |
| 2671 } | |
| 2672 } | |
| 2673 /* Which windows are acceptable? | |
| 2674 Exit the loop and accept this window if | |
| 2675 this isn't a minibuffer window, | |
| 2676 or we're accepting all minibuffer windows, | |
| 2677 or this is the active minibuffer and we are accepting that one, or | |
| 2678 we've come all the way around and we're back at the original window. */ | |
| 2679 while (MINI_WINDOW_P (XWINDOW (window)) | |
| 2680 && ! EQ (minibuf, Qt) | |
| 2681 && ! EQ (minibuf, window) | |
| 2682 && ! EQ (window, start_window)); | |
| 2683 | |
| 2684 return window; | |
| 2685 } | |
| 2686 | |
| 2687 DEFUN ("next-vertical-window", Fnext_vertical_window, 0, 1, 0, /* | |
| 2688 Return the next window which is vertically after WINDOW. | |
| 2689 */ | |
| 2690 (window)) | |
| 2691 { | |
| 2692 Lisp_Object root; | |
| 2693 struct window *w = decode_window (window); | |
| 793 | 2694 window = wrap_window (w); |
| 428 | 2695 |
| 2696 if (MINI_WINDOW_P (XWINDOW (window))) | |
| 2697 return Qnil; | |
| 2698 | |
| 2699 root = FRAME_ROOT_WINDOW (XFRAME (WINDOW_FRAME (XWINDOW (window)))); | |
| 2700 | |
| 2701 if (EQ (window, root)) | |
| 2702 { | |
| 2703 while (1) | |
| 2704 if (!NILP (XWINDOW (window)->hchild)) | |
| 2705 window = XWINDOW (window)->hchild; | |
| 2706 else if (!NILP (XWINDOW (window)->vchild)) | |
| 2707 window = XWINDOW (window)->vchild; | |
| 2708 else | |
| 2709 return window; | |
| 2710 } | |
| 2711 | |
| 2712 do | |
| 2713 { | |
| 2714 if (!NILP (XWINDOW (window)->parent) && | |
| 2715 !NILP (XWINDOW (XWINDOW (window)->parent)->vchild)) | |
| 2716 { | |
| 2717 if (!NILP (XWINDOW (window)->next)) | |
| 2718 return XWINDOW (window)->next; | |
| 2719 else | |
| 2720 window = XWINDOW (window)->parent; | |
| 2721 } | |
| 2722 else | |
| 2723 window = XWINDOW (window)->parent; | |
| 2724 } | |
| 2725 while (!EQ (window, root)); | |
| 2726 | |
| 2727 while (1) | |
| 2728 if (!NILP (XWINDOW (window)->hchild)) | |
| 2729 window = XWINDOW (window)->hchild; | |
| 2730 else if (!NILP (XWINDOW (window)->vchild)) | |
| 2731 window = XWINDOW (window)->vchild; | |
| 2732 else | |
| 2733 return window; | |
| 2734 } | |
| 2735 | |
| 2736 DEFUN ("other-window", Fother_window, 1, 3, "p", /* | |
| 444 | 2737 Select the COUNT'th different window on this frame. |
| 428 | 2738 All windows on current frame are arranged in a cyclic order. |
| 444 | 2739 This command selects the window COUNT steps away in that order. |
| 2740 A negative COUNT moves in the opposite order. | |
| 2741 | |
| 2742 By default, only the windows in the selected frame are considered. | |
| 2743 The optional argument WHICH-FRAMES changes this behavior: | |
| 2744 WHICH-FRAMES = `visible' means search windows on all visible frames. | |
| 448 | 2745 WHICH-FRAMES = 0 means search windows on all visible and iconified frames. |
| 444 | 2746 WHICH-FRAMES = t means search windows on all frames including invisible frames. |
| 2747 WHICH-FRAMES = a frame means search only windows on that frame. | |
| 2748 Anything else means restrict to the selected frame. | |
| 2749 | |
| 2750 The optional argument WHICH-DEVICES further clarifies on which devices | |
| 2751 to search for frames as specified by WHICH-FRAMES. This value is only | |
| 2752 meaningful if WHICH-FRAMES is non-nil. | |
| 2753 If nil or omitted, search all devices on the selected console. | |
| 2754 If a device, only search that device. | |
| 2755 If a console, search all devices on that console. | |
| 2756 If a device type, search all devices of that type. | |
| 2757 If `window-system', search all window-system devices. | |
| 2758 Any other non-nil value means search all devices. | |
| 428 | 2759 */ |
| 444 | 2760 (count, which_frames, which_devices)) |
| 428 | 2761 { |
| 2762 int i; | |
| 2763 Lisp_Object w; | |
| 2764 | |
| 444 | 2765 CHECK_INT (count); |
| 428 | 2766 w = Fselected_window (Qnil); |
| 444 | 2767 i = XINT (count); |
| 428 | 2768 |
| 2769 while (i > 0) | |
| 2770 { | |
| 444 | 2771 w = Fnext_window (w, Qnil, which_frames, which_devices); |
| 428 | 2772 i--; |
| 2773 } | |
| 2774 while (i < 0) | |
| 2775 { | |
| 444 | 2776 w = Fprevious_window (w, Qnil, which_frames, which_devices); |
| 428 | 2777 i++; |
| 2778 } | |
| 2779 Fselect_window (w, Qnil); | |
| 2780 return Qnil; | |
| 2781 } | |
| 2782 | |
| 2783 | |
| 2784 /* Look at all windows, performing an operation specified by TYPE | |
| 2785 with argument OBJ. | |
| 2786 | |
| 2787 If FRAMES is Qt, look at all frames, if Qnil, look at just the selected | |
| 2788 frame. If FRAMES is a frame, just look at windows on that frame. | |
| 2789 If MINI is non-zero, perform the operation on minibuffer windows too. | |
| 2790 */ | |
| 2791 | |
| 2792 enum window_loop | |
| 2793 { | |
| 2794 WINDOW_LOOP_UNUSED, | |
| 2795 GET_BUFFER_WINDOW, /* Arg is buffer */ | |
| 2796 GET_LRU_WINDOW, /* Arg is t for full-width windows only */ | |
| 2797 DELETE_OTHER_WINDOWS, /* Arg is window not to delete */ | |
| 2798 DELETE_BUFFER_WINDOWS, /* Arg is buffer */ | |
| 2799 GET_LARGEST_WINDOW, | |
| 2800 GET_BUFFER_WINDOW_COUNT, /* Arg is buffer */ | |
| 2801 GET_BUFFER_MRU_WINDOW /* Arg is buffer */ | |
| 2802 }; | |
| 2803 | |
| 2804 static Lisp_Object | |
| 2805 window_loop (enum window_loop type, | |
| 2806 Lisp_Object obj, | |
| 2807 int mini, | |
| 444 | 2808 Lisp_Object which_frames, |
| 428 | 2809 int dedicated_too, |
| 444 | 2810 Lisp_Object which_devices) |
| 428 | 2811 { |
| 448 | 2812 /* This function can GC if type == DELETE_BUFFER_WINDOWS */ |
| 428 | 2813 Lisp_Object w; |
| 2814 Lisp_Object best_window = Qnil; | |
| 2815 Lisp_Object next_window; | |
| 2816 Lisp_Object last_window; | |
| 2817 struct frame *frame; | |
| 2818 Lisp_Object frame_arg = Qt; | |
| 2819 int count = 0; /* for GET_BUFFER_WINDOW_COUNT */ | |
| 2820 /* #### I think the change of "precomputing" last_window and next_window | |
| 2821 * #### catch the lossage this is meant(?) to punt on... | |
| 2822 */ | |
| 2823 int lose_lose = 0; | |
| 2824 Lisp_Object devcons, concons; | |
| 2825 | |
| 2826 /* If we're only looping through windows on a particular frame, | |
| 2827 FRAME points to that frame. If we're looping through windows | |
| 2828 on all frames, FRAME is 0. */ | |
| 444 | 2829 if (FRAMEP (which_frames)) |
| 2830 frame = XFRAME (which_frames); | |
| 2831 else if (NILP (which_frames)) | |
| 428 | 2832 frame = selected_frame (); |
| 2833 else | |
| 2834 frame = 0; | |
| 442 | 2835 |
| 2836 /* FRAME_ARG is Qlambda to stick to one frame, | |
| 2837 Qvisible to consider all visible frames, | |
| 2838 or Qt otherwise. */ | |
| 428 | 2839 if (frame) |
| 2840 frame_arg = Qlambda; | |
| 444 | 2841 else if (ZEROP (which_frames)) |
| 2842 frame_arg = which_frames; | |
| 2843 else if (EQ (which_frames, Qvisible)) | |
| 2844 frame_arg = which_frames; | |
| 428 | 2845 |
| 2846 DEVICE_LOOP_NO_BREAK (devcons, concons) | |
| 2847 { | |
| 2848 Lisp_Object device = XCAR (devcons); | |
| 2849 Lisp_Object the_frame; | |
| 2850 | |
| 2851 if (frame) | |
| 793 | 2852 the_frame = wrap_frame (frame); |
| 428 | 2853 else |
| 2854 the_frame = DEVICE_SELECTED_FRAME (XDEVICE (device)); | |
| 2855 | |
| 2856 if (NILP (the_frame)) | |
| 2857 continue; | |
| 2858 | |
| 444 | 2859 if (!device_matches_device_spec (device, |
| 2860 NILP (which_devices) ? | |
| 2861 FRAME_CONSOLE (XFRAME (the_frame)) : | |
| 2862 which_devices)) | |
| 428 | 2863 continue; |
| 2864 | |
| 2865 /* Pick a window to start with. */ | |
| 2866 if (WINDOWP (obj)) | |
| 2867 w = obj; | |
| 2868 else | |
| 2869 w = FRAME_SELECTED_WINDOW (XFRAME (the_frame)); | |
| 2870 | |
| 2871 /* Figure out the last window we're going to mess with. Since | |
| 2872 Fnext_window, given the same options, is guaranteed to go in a | |
| 2873 ring, we can just use Fprevious_window to find the last one. | |
| 2874 | |
| 2875 We can't just wait until we hit the first window again, | |
| 2876 because it might be deleted. */ | |
| 2877 | |
| 707 | 2878 last_window = Fprevious_window (w, mini ? Qt : Qnil, frame_arg, device); |
| 428 | 2879 |
| 2880 best_window = Qnil; | |
| 2881 for (;;) | |
| 2882 { | |
| 2883 struct window *p = XWINDOW (w); | |
| 2884 | |
| 2885 /* Pick the next window now, since some operations will delete | |
| 2886 the current window. */ | |
| 442 | 2887 next_window = Fnext_window (w, mini ? Qt : Qnil, frame_arg, device); |
| 428 | 2888 |
| 2889 /* #### Still needed ?? */ | |
| 2890 /* Given the outstanding quality of the rest of this code, | |
| 2891 I feel no shame about putting this piece of shit in. */ | |
| 2892 if (++lose_lose >= 500) | |
| 707 | 2893 { |
| 2500 | 2894 /* Call to ABORT() added by Darryl Okahata (16 Nov. 2001), |
| 707 | 2895 at Ben's request, to catch any remaining bugs. |
| 2896 | |
| 2897 If you find that XEmacs is aborting here, and you | |
| 2898 need to be up and running ASAP, it should be safe to | |
| 2500 | 2899 comment out the following ABORT(), as long as you |
| 707 | 2900 leave the "break;" alone. */ |
| 2500 | 2901 ABORT(); |
| 707 | 2902 break; /* <--- KEEP THIS HERE! Do not delete! */ |
| 2903 } | |
| 428 | 2904 |
| 2905 /* Note that we do not pay attention here to whether | |
| 2906 the frame is visible, since Fnext_window skips non-visible frames | |
| 2907 if that is desired, under the control of frame_arg. */ | |
| 2908 if (! MINI_WINDOW_P (p) | |
| 2909 || (mini && minibuf_level > 0)) | |
| 2910 switch (type) | |
| 2911 { | |
| 2912 case GET_BUFFER_WINDOW: | |
| 2913 { | |
| 2914 if (XBUFFER (p->buffer) == XBUFFER (obj)) | |
| 2915 return w; | |
| 2916 break; | |
| 2917 } | |
| 2918 | |
| 2919 case GET_BUFFER_WINDOW_COUNT: | |
| 2920 { | |
| 2921 if (XBUFFER (p->buffer) == XBUFFER (obj)) | |
| 2922 count++; | |
| 2923 break; | |
| 2924 } | |
| 2925 | |
| 2926 case GET_LRU_WINDOW: | |
| 2927 { | |
| 2928 /* t as arg means consider only full-width windows */ | |
| 2929 if (!NILP (obj) | |
| 2930 && !window_full_width_p (p)) | |
| 2931 break; | |
| 2932 /* Ignore dedicated windows and minibuffers. */ | |
| 2933 if (MINI_WINDOW_P (p) | |
| 2934 || (dedicated_too ? 0 : !NILP (p->dedicated))) | |
| 2935 break; | |
| 2936 if (NILP (best_window) | |
| 2937 || (XINT (XWINDOW (best_window)->use_time) | |
| 2938 > XINT (p->use_time))) | |
| 2939 best_window = w; | |
| 2940 break; | |
| 2941 } | |
| 2942 | |
| 2943 case GET_BUFFER_MRU_WINDOW: | |
| 2944 { | |
| 2945 /* #### what about the first check in GET_LRU_WINDOW? */ | |
| 2946 /* Ignore dedicated windows and minibuffers. */ | |
| 2947 if (MINI_WINDOW_P (p) | |
| 2948 || (dedicated_too ? 0 : !NILP (p->dedicated))) | |
| 2949 break; | |
| 2950 | |
| 2951 if (XBUFFER (p->buffer) == XBUFFER (obj)) | |
| 2952 { | |
| 2953 if (NILP (best_window) | |
| 2954 || (XINT (XWINDOW (best_window)->use_time) | |
| 2955 < XINT (p->use_time))) | |
| 2956 best_window = w; | |
| 2957 } | |
| 2958 break; | |
| 2959 } | |
| 2960 | |
| 2961 case DELETE_OTHER_WINDOWS: | |
| 2962 { | |
| 2963 /* Don't delete the last window on a frame; this can | |
| 2964 happen when the minibuffer is selected, and would | |
| 2965 cause the frame to be deleted. */ | |
| 2966 if (p != XWINDOW (obj) && !TOP_LEVEL_WINDOW_P (XWINDOW (w))) | |
| 2967 Fdelete_window (w, Qnil); | |
| 2968 break; | |
| 2969 } | |
| 2970 | |
| 2971 case DELETE_BUFFER_WINDOWS: | |
| 2972 { | |
| 2973 if (EQ (p->buffer, obj)) | |
| 2974 { | |
| 2975 struct frame *f = XFRAME (WINDOW_FRAME (p)); | |
| 2976 | |
| 2977 /* If this window is dedicated, and in a frame | |
| 2978 of its own, kill the frame. */ | |
| 2979 if (EQ (w, FRAME_ROOT_WINDOW (f)) | |
| 2980 && !NILP (p->dedicated) | |
| 1979 | 2981 && (allow_deletion_of_last_visible_frame |
| 2982 || other_visible_frames (f))) | |
| 428 | 2983 { |
| 2984 /* Skip the other windows on this frame. | |
| 2985 There might be one, the minibuffer! */ | |
| 2986 if (! EQ (w, last_window)) | |
| 2987 while (f == XFRAME (WINDOW_FRAME | |
| 2988 (XWINDOW (next_window)))) | |
| 2989 { | |
| 2990 /* As we go, check for the end of the | |
| 2991 loop. We mustn't start going | |
| 2992 around a second time. */ | |
| 2993 if (EQ (next_window, last_window)) | |
| 2994 { | |
| 2995 last_window = w; | |
| 2996 break; | |
| 2997 } | |
| 2998 next_window = Fnext_window (next_window, | |
| 2999 mini ? Qt : Qnil, | |
| 3000 frame_arg, Qt); | |
| 3001 } | |
| 3002 /* Now we can safely delete the frame. */ | |
| 3003 Fdelete_frame (WINDOW_FRAME (p), Qnil); | |
| 3004 } | |
| 3005 else | |
| 3006 /* If we're deleting the buffer displayed in | |
| 3007 the only window on the frame, find a new | |
| 3008 buffer to display there. */ | |
| 3009 if (NILP (p->parent)) | |
| 3010 { | |
| 3011 Lisp_Object new_buffer; | |
| 3012 new_buffer = Fother_buffer (obj, Qnil, Qnil); | |
| 3013 if (NILP (new_buffer)) | |
| 3014 new_buffer = Fget_buffer_create (QSscratch); | |
| 440 | 3015 Fset_window_buffer (w, new_buffer, Qnil); |
| 428 | 3016 if (EQ (w, Fselected_window (Qnil))) |
| 3017 Fset_buffer (p->buffer); | |
| 3018 } | |
| 3019 else | |
| 3020 Fdelete_window (w, Qnil); | |
| 3021 } | |
| 3022 break; | |
| 3023 } | |
| 3024 | |
| 3025 case GET_LARGEST_WINDOW: | |
| 3026 { | |
| 3027 /* Ignore dedicated windows and minibuffers. */ | |
| 3028 if (MINI_WINDOW_P (p) | |
| 3029 || (dedicated_too ? 0 : !NILP (p->dedicated))) | |
| 3030 break; | |
| 3031 { | |
| 3032 /* write the check as follows to avoid tripping | |
| 3033 error_check_window() --ben */ | |
| 3034 struct window *b = NILP (best_window) ? 0 : | |
| 3035 XWINDOW (best_window); | |
| 3036 if (NILP (best_window) | |
| 3037 || ((WINDOW_HEIGHT (p) * WINDOW_WIDTH (p)) | |
| 3038 > (WINDOW_HEIGHT (b) * WINDOW_WIDTH (b)))) | |
| 3039 best_window = w; | |
| 3040 } | |
| 3041 break; | |
| 3042 } | |
| 3043 | |
| 3044 default: | |
| 2500 | 3045 ABORT (); |
| 428 | 3046 } |
| 3047 | |
| 3048 if (EQ (w, last_window)) | |
| 3049 break; | |
| 3050 | |
| 3051 w = next_window; | |
| 3052 } | |
| 3053 } | |
| 3054 | |
| 3055 return type == GET_BUFFER_WINDOW_COUNT ? make_int (count) : best_window; | |
| 3056 } | |
| 3057 | |
| 3058 #if 0 /* not currently used */ | |
| 3059 | |
| 3060 int | |
| 3061 buffer_window_count (struct buffer *b, struct frame *f) | |
| 3062 { | |
| 3063 Lisp_Object buffer, frame; | |
| 3064 | |
| 793 | 3065 frame = wrap_frame (f); |
| 3066 buffer = wrap_buffer (b); | |
| 428 | 3067 |
| 3068 return XINT (window_loop (GET_BUFFER_WINDOW_COUNT, buffer, 0, frame, 1, | |
| 3069 Qnil)); | |
| 3070 } | |
| 3071 | |
| 3072 int | |
| 3073 buffer_window_mru (struct window *w) | |
| 3074 { | |
| 3075 Lisp_Object window = | |
| 3076 window_loop (GET_BUFFER_MRU_WINDOW, w->buffer, 0, w->frame, 1, Qnil); | |
| 3077 | |
| 3078 if (NILP (window)) | |
| 3079 return 0; | |
| 3080 else if (XWINDOW (window) == w) | |
| 3081 return 1; | |
| 3082 else | |
| 3083 return 0; | |
| 3084 } | |
| 3085 | |
| 3086 #endif | |
| 3087 | |
| 3088 | |
| 3089 DEFUN ("get-lru-window", Fget_lru_window, 0, 2, 0, /* | |
| 3090 Return the window least recently selected or used for display. | |
| 444 | 3091 |
| 3092 By default, only the windows in the selected frame are considered. | |
| 3093 The optional argument WHICH-FRAMES changes this behavior: | |
| 3094 If optional argument WHICH-FRAMES is `visible', search all visible frames. | |
| 3095 If WHICH-FRAMES is 0, search all visible and iconified frames. | |
| 3096 If WHICH-FRAMES is t, search all frames. | |
| 3097 If WHICH-FRAMES is nil, search only the selected frame. | |
| 3098 If WHICH-FRAMES is a frame, search only that frame. | |
| 3099 | |
| 3100 The optional argument WHICH-DEVICES further clarifies on which devices | |
| 3101 to search for frames as specified by WHICH-FRAMES. This value is only | |
| 3102 meaningful if WHICH-FRAMES is non-nil. | |
| 3103 If nil or omitted, search all devices on the selected console. | |
| 3104 If a device, only search that device. | |
| 3105 If a console, search all devices on that console. | |
| 3106 If a device type, search all devices of that type. | |
| 3107 If `window-system', search all devices on window-system consoles. | |
| 3108 Any other non-nil value means search all devices. | |
| 428 | 3109 */ |
| 444 | 3110 (which_frames, which_devices)) |
| 428 | 3111 { |
| 3112 Lisp_Object w; | |
| 3113 /* First try for a non-dedicated window that is full-width */ | |
| 444 | 3114 w = window_loop (GET_LRU_WINDOW, Qt, 0, which_frames, 0, which_devices); |
| 428 | 3115 if (!NILP (w) && !EQ (w, Fselected_window (Qnil))) |
| 3116 return w; | |
| 3117 | |
| 3118 /* Then try for any non-dedicated window */ | |
| 444 | 3119 w = window_loop (GET_LRU_WINDOW, Qnil, 0, which_frames, 0, which_devices); |
| 428 | 3120 if (!NILP (w) && !EQ (w, Fselected_window (Qnil))) |
| 3121 return w; | |
| 3122 | |
| 3123 #if 0 | |
| 3124 /* FSFmacs never returns a dedicated window here. If we do, | |
| 3125 it makes `display-buffer' not work right. #### All of this | |
| 3126 shit is so disgusting and awful that it needs to be rethought | |
| 3127 from scratch. */ | |
| 3128 /* then try for a dedicated window that is full-width */ | |
| 444 | 3129 w = window_loop (GET_LRU_WINDOW, Qt, 0, which_frames, 1, which_devices); |
| 428 | 3130 if (!NILP (w) && !EQ (w, Fselected_window (Qnil))) |
| 3131 return w; | |
| 3132 | |
| 3133 /* If none of them, then all windows, dedicated or not. */ | |
| 444 | 3134 w = window_loop (GET_LRU_WINDOW, Qnil, 0, which_frames, 1, which_devices); |
| 428 | 3135 |
| 3136 /* At this point we damn well better have found something. */ | |
|
5050
6f2158fa75ed
Fix quick-build, use asserts() in place of ABORT()
Ben Wing <ben@xemacs.org>
parents:
4967
diff
changeset
|
3137 assert (!NILP (w)); |
| 428 | 3138 #endif |
| 3139 | |
| 3140 return w; | |
| 3141 } | |
| 3142 | |
| 3143 DEFUN ("get-largest-window", Fget_largest_window, 0, 2, 0, /* | |
| 3144 Return the window largest in area. | |
| 444 | 3145 |
| 3146 By default, only the windows in the selected frame are considered. | |
| 3147 The optional argument WHICH-FRAMES changes this behavior: | |
| 3148 If optional argument WHICH-FRAMES is `visible', search all visible frames. | |
| 3149 If WHICH-FRAMES is 0, search all visible and iconified frames. | |
| 3150 If WHICH-FRAMES is t, search all frames. | |
| 3151 If WHICH-FRAMES is nil, search only the selected frame. | |
| 3152 If WHICH-FRAMES is a frame, search only that frame. | |
| 3153 | |
| 3154 The optional argument WHICH-DEVICES further clarifies on which devices | |
| 3155 to search for frames as specified by WHICH-FRAMES. This value is only | |
| 3156 meaningful if WHICH-FRAMES is non-nil. | |
| 3157 If nil or omitted, search all devices on the selected console. | |
| 3158 If a device, only search that device. | |
| 3159 If a console, search all devices on that console. | |
| 3160 If a device type, search all devices of that type. | |
| 3161 If `window-system', search all devices on window-system consoles. | |
| 3162 Any other non-nil value means search all devices. | |
| 428 | 3163 */ |
| 444 | 3164 (which_frames, which_devices)) |
| 428 | 3165 { |
| 3166 /* Don't search dedicated windows because FSFmacs doesn't. | |
| 3167 This stuff is all black magic so don't try to apply common | |
| 3168 sense to it. */ | |
| 444 | 3169 return window_loop (GET_LARGEST_WINDOW, Qnil, 0, |
| 3170 which_frames, 0, which_devices); | |
| 428 | 3171 } |
| 3172 | |
| 3173 DEFUN ("get-buffer-window", Fget_buffer_window, 1, 3, 0, /* | |
| 3174 Return a window currently displaying BUFFER, or nil if none. | |
| 444 | 3175 |
| 3176 By default, only the windows in the selected frame are considered. | |
| 3177 The optional argument WHICH-FRAMES changes this behavior: | |
| 3178 If optional argument WHICH-FRAMES is `visible', search all visible frames. | |
| 3179 If WHICH-FRAMES is 0, search all visible and iconified frames. | |
| 3180 If WHICH-FRAMES is t, search all frames. | |
| 3181 If WHICH-FRAMES is nil, search only the selected frame. | |
| 3182 If WHICH-FRAMES is a frame, search only that frame. | |
| 3183 | |
| 3184 The optional argument WHICH-DEVICES further clarifies on which devices | |
| 3185 to search for frames as specified by WHICH-FRAMES. This value is only | |
| 3186 meaningful if WHICH-FRAMES is non-nil. | |
| 3187 If nil or omitted, search all devices on the selected console. | |
| 3188 If a device, only search that device. | |
| 3189 If a console, search all devices on that console. | |
| 3190 If a device type, search all devices of that type. | |
| 3191 If `window-system', search all devices on window-system consoles. | |
| 3192 Any other non-nil value means search all devices. | |
| 428 | 3193 */ |
| 444 | 3194 (buffer, which_frames, which_devices)) |
| 428 | 3195 { |
| 3196 buffer = Fget_buffer (buffer); | |
| 3197 if (BUFFERP (buffer)) | |
| 3198 /* Search dedicated windows too. (Doesn't matter here anyway.) */ | |
| 444 | 3199 return window_loop (GET_BUFFER_WINDOW, buffer, 1, |
| 3200 which_frames, 1, which_devices); | |
| 428 | 3201 else |
| 3202 return Qnil; | |
| 3203 } | |
| 3204 | |
| 3205 /* These functions used to be `buffer-left-margin-pixel-width', etc. | |
| 3206 but there is no sensible way to implement those functions, since | |
| 3207 you can't in general derive a window from a buffer. */ | |
| 3208 | |
| 3209 DEFUN ("window-left-margin-pixel-width", Fwindow_left_margin_pixel_width, | |
| 3210 0, 1, 0, /* | |
| 3211 Return the width in pixels of the left outside margin of window WINDOW. | |
| 3212 If WINDOW is nil, the selected window is assumed. | |
| 3213 */ | |
| 3214 (window)) | |
| 3215 { | |
| 3216 return make_int (window_left_margin_width (decode_window (window))); | |
| 3217 } | |
| 3218 | |
| 3219 DEFUN ("window-right-margin-pixel-width", Fwindow_right_margin_pixel_width, | |
| 3220 0, 1, 0, /* | |
| 3221 Return the width in pixels of the right outside margin of window WINDOW. | |
| 3222 If WINDOW is nil, the selected window is assumed. | |
| 3223 */ | |
| 3224 (window)) | |
| 3225 { | |
| 3226 return make_int (window_right_margin_width (decode_window (window))); | |
| 3227 } | |
| 3228 | |
| 3229 DEFUN ("delete-other-windows", Fdelete_other_windows, 0, 1, "", /* | |
| 3230 Make WINDOW (or the selected window) fill its frame. | |
| 3231 Only the frame WINDOW is on is affected. | |
| 3232 This function tries to reduce display jumps | |
| 3233 by keeping the text previously visible in WINDOW | |
| 3234 in the same place on the frame. Doing this depends on | |
| 3235 the value of (window-start WINDOW), so if calling this function | |
| 3236 in a program gives strange scrolling, make sure the window-start | |
| 3237 value is reasonable when this function is called. | |
| 3238 */ | |
| 3239 (window)) | |
| 3240 { | |
| 3241 struct window *w = decode_window (window); | |
| 1207 | 3242 struct buffer *b; |
| 665 | 3243 Charbpos start_pos; |
| 428 | 3244 int old_top = WINDOW_TOP (w); |
| 3245 | |
| 1207 | 3246 if (NILP (WINDOW_BUFFER (w))) |
| 3247 invalid_operation ("Can't delete other windows of combination", window); | |
| 3248 | |
| 793 | 3249 window = wrap_window (w); |
| 1207 | 3250 b = XBUFFER (WINDOW_BUFFER (w)); |
| 428 | 3251 |
| 3252 if (MINI_WINDOW_P (w) && old_top > 0) | |
| 563 | 3253 invalid_operation ("Can't expand minibuffer to full frame", Qunbound); |
| 428 | 3254 |
| 3255 /* Ignore dedicated windows. */ | |
| 3256 window_loop (DELETE_OTHER_WINDOWS, window, 0, w->frame, 0, Qnil); | |
| 3257 | |
| 3258 start_pos = marker_position (w->start[CURRENT_DISP]); | |
| 3259 | |
| 3260 /* Try to minimize scrolling, by setting the window start to the | |
| 3261 point which will cause the text at the old window start to be at | |
| 3262 the same place on the frame. But don't try to do this if the | |
| 3263 window start is outside the visible portion (as might happen when | |
| 3264 the display is not current, due to typeahead). */ | |
| 3265 if (start_pos >= BUF_BEGV (b) && start_pos <= BUF_ZV (b) | |
| 3266 && !MINI_WINDOW_P (w)) | |
| 3267 { | |
| 665 | 3268 Charbpos new_start = start_with_line_at_pixpos (w, start_pos, old_top); |
| 428 | 3269 |
| 3270 if (new_start >= BUF_BEGV (b) && new_start <= BUF_ZV (b)) | |
| 3271 { | |
| 3272 Fset_marker (w->start[CURRENT_DISP], make_int (new_start), | |
| 3273 w->buffer); | |
| 3274 w->start_at_line_beg = beginning_of_line_p (b, new_start); | |
| 3275 } | |
| 3276 /* We need to do this, so that the window-scroll-functions | |
| 3277 get called. */ | |
| 3278 w->force_start = 1; | |
| 3279 } | |
| 3280 | |
| 3281 return Qnil; | |
| 3282 } | |
| 3283 | |
| 3284 DEFUN ("delete-windows-on", Fdelete_windows_on, 1, 3, | |
| 3285 "bDelete windows on (buffer): ", /* | |
| 3286 Delete all windows showing BUFFER. | |
| 444 | 3287 |
| 3288 Optional second argument WHICH-FRAMES controls which frames are affected. | |
| 428 | 3289 If nil or omitted, delete all windows showing BUFFER in any frame. |
| 3290 If t, delete only windows showing BUFFER in the selected frame. | |
| 3291 If `visible', delete all windows showing BUFFER in any visible frame. | |
| 3292 If a frame, delete only windows showing BUFFER in that frame. | |
| 444 | 3293 Warning: WHICH-FRAMES has the same meaning as with `next-window', |
| 3294 except that the meanings of nil and t are reversed. | |
| 3295 | |
| 3296 The optional third argument WHICH-DEVICES further clarifies on which | |
| 3297 devices to search for frames as specified by WHICH-FRAMES. This value | |
| 3298 is only meaningful if WHICH-FRAMES is not t. | |
| 3299 If nil or omitted, search only the selected console. | |
| 3300 If a device, only search that device. | |
| 3301 If a console, search all devices on that console. | |
| 3302 If a device type, search all devices of that type. | |
| 3303 If `window-system', search all devices on a window system. | |
| 3304 Any other non-nil value means search all devices. | |
| 428 | 3305 */ |
| 444 | 3306 (buffer, which_frames, which_devices)) |
| 428 | 3307 { |
| 3308 /* This function can GC */ | |
| 444 | 3309 buffer = Fget_buffer (buffer); |
| 3310 CHECK_BUFFER (buffer); | |
| 3311 | |
| 3312 /* WHICH-FRAMES values t and nil mean the opposite of what | |
| 3313 window_loop expects. */ | |
| 3314 if (EQ (which_frames, Qnil)) | |
| 3315 which_frames = Qt; | |
| 3316 else if (EQ (which_frames, Qt)) | |
| 3317 which_frames = Qnil; | |
| 3318 | |
| 3319 /* Ignore dedicated windows. */ | |
| 3320 window_loop (DELETE_BUFFER_WINDOWS, buffer, 0, | |
| 3321 which_frames, 0, which_devices); | |
| 428 | 3322 return Qnil; |
| 3323 } | |
| 3324 | |
| 448 | 3325 static Lisp_Object |
| 3326 list_windows (struct window *w, Lisp_Object value) | |
| 3327 { | |
| 3328 for (;;) | |
| 3329 { | |
| 3330 if (!NILP (w->hchild)) | |
| 3331 value = list_windows (XWINDOW (w->hchild), value); | |
| 3332 else if (!NILP (w->vchild)) | |
| 3333 value = list_windows (XWINDOW (w->vchild), value); | |
| 3334 else | |
| 3335 { | |
| 793 | 3336 Lisp_Object window = wrap_window (w); |
| 3337 | |
| 448 | 3338 value = Fcons (window, value); |
| 3339 } | |
| 3340 if (NILP (w->next)) | |
| 3341 break; | |
| 3342 w = XWINDOW (w->next); | |
| 3343 } | |
| 3344 return value; | |
| 3345 } | |
| 3346 | |
| 3347 static Lisp_Object | |
| 3348 list_all_windows (Lisp_Object frame_spec, Lisp_Object device_spec) | |
| 3349 { | |
| 3350 Lisp_Object devcons, concons; | |
| 3351 Lisp_Object retval = Qnil; | |
| 3352 | |
| 3353 DEVICE_LOOP_NO_BREAK (devcons, concons) | |
| 3354 { | |
| 3355 Lisp_Object frame_list, the_window; | |
| 3356 Lisp_Object device, tail; | |
| 3357 | |
| 3358 device = XCAR (devcons); | |
| 3359 frame_list = DEVICE_FRAME_LIST (XDEVICE (device)); | |
| 3360 | |
| 3361 LIST_LOOP (tail, frame_list) | |
| 3362 { | |
| 3363 if ((NILP (frame_spec) | |
| 3364 && !EQ (XCAR (tail), DEVICE_SELECTED_FRAME (XDEVICE (device)))) | |
| 3365 || (EQ (frame_spec, Qvisible) | |
| 3366 && !FRAME_VISIBLE_P (XFRAME (XCAR (tail)))) | |
| 3367 || (FRAMEP (frame_spec) | |
| 3368 && !EQ (frame_spec, XCAR (tail))) | |
| 3369 || (!NILP (frame_spec) | |
| 3370 && !device_matches_device_spec (device, | |
| 3371 NILP (device_spec) ? | |
| 3372 Vselected_console : | |
| 3373 device_spec))) | |
| 3374 continue; | |
| 3375 the_window = FRAME_ROOT_WINDOW (XFRAME (XCAR (tail))); | |
| 3376 retval = list_windows (XWINDOW (the_window), retval); | |
| 3377 } | |
| 3378 } | |
| 3379 return Fnreverse (retval); | |
| 3380 } | |
| 3381 | |
| 444 | 3382 DEFUN ("replace-buffer-in-windows", Freplace_buffer_in_windows, 1, 3, |
| 428 | 3383 "bReplace buffer in windows: ", /* |
| 3384 Replace BUFFER with some other buffer in all windows showing it. | |
| 444 | 3385 |
| 3386 Optional second argument WHICH-FRAMES controls which frames are affected. | |
| 3387 If nil or omitted, all frames are affected. | |
| 3388 If t, only the selected frame is affected. | |
| 3389 If `visible', all visible frames are affected. | |
| 3390 If a frame, only that frame is affected. | |
| 3391 Warning: WHICH-FRAMES has the same meaning as with `next-window', | |
| 3392 except that the meanings of nil and t are reversed. | |
| 3393 | |
| 3394 The optional third argument WHICH-DEVICES further clarifies on which | |
| 3395 devices to search for frames as specified by WHICH-FRAMES. This value | |
| 3396 is only meaningful if WHICH-FRAMES is not t. | |
| 3397 If nil or omitted, search only the selected console. | |
| 3398 If a device, only search that device. | |
| 3399 If a console, search all devices on that console. | |
| 3400 If a device type, search all devices of that type. | |
| 3401 If `window-system', search all devices on a window system. | |
| 3402 Any other non-nil value means search all devices. | |
| 428 | 3403 */ |
| 444 | 3404 (buffer, which_frames, which_devices)) |
| 428 | 3405 { |
| 3406 /* This function can GC */ | |
| 448 | 3407 Lisp_Object window_list; |
| 3408 Lisp_Object tail; | |
| 3409 struct gcpro gcpro1, gcpro2; | |
| 3410 | |
| 444 | 3411 if (EQ (which_frames, Qnil)) |
| 3412 which_frames = Qt; | |
| 3413 else if (EQ (which_frames, Qt)) | |
| 3414 which_frames = Qnil; | |
| 448 | 3415 window_list = list_all_windows (which_frames, which_devices); |
| 3416 | |
| 3417 buffer = Fget_buffer (buffer); | |
| 3418 CHECK_BUFFER (buffer); | |
| 3419 | |
| 3420 GCPRO2 (window_list, buffer); | |
| 3421 LIST_LOOP (tail, window_list) | |
| 3422 { | |
| 3423 Lisp_Object window = XCAR (tail); | |
| 3424 if (!MINI_WINDOW_P (XWINDOW (window)) | |
| 3425 && EQ (XWINDOW (window)->buffer, buffer)) | |
| 3426 { | |
| 3427 Lisp_Object another_buffer = Fother_buffer (buffer, Qnil, Qnil); | |
| 3428 Lisp_Object frame = WINDOW_FRAME (XWINDOW (window)); | |
| 3429 if (NILP (another_buffer)) | |
| 3430 another_buffer = Fget_buffer_create (QSscratch); | |
| 3431 if (!NILP (XWINDOW (window)->dedicated) | |
| 3432 && EQ (window, | |
| 3433 FRAME_ROOT_WINDOW (XFRAME (frame))) | |
| 1979 | 3434 && (allow_deletion_of_last_visible_frame |
| 3435 || other_visible_frames (XFRAME (frame)))) | |
| 448 | 3436 { |
| 3437 delete_frame_internal (XFRAME (frame), 0, 0, 0); /* GC */ | |
| 3438 } | |
| 3439 else | |
| 3440 { | |
| 3441 Fset_window_buffer (window, another_buffer, Qnil); | |
| 3442 if (EQ (window, Fselected_window (Qnil))) | |
| 3443 Fset_buffer (XWINDOW (window)->buffer); | |
| 3444 } | |
| 3445 } | |
| 3446 } | |
| 3447 UNGCPRO; | |
| 428 | 3448 return Qnil; |
| 3449 } | |
| 3450 | |
| 3451 /* The smallest acceptable dimensions for a window. Anything smaller | |
| 3452 might crash Emacs. */ | |
| 3453 #define MIN_SAFE_WINDOW_WIDTH (2) | |
| 3454 #define MIN_SAFE_WINDOW_HEIGHT (2) | |
| 3455 | |
| 3456 /* Make sure that window_min_height and window_min_width are | |
| 3457 not too small; if they are, set them to safe minima. */ | |
| 3458 | |
| 3459 static void | |
| 3460 check_min_window_sizes (void) | |
| 3461 { | |
| 3462 /* Smaller values might permit a crash. */ | |
| 3463 if (window_min_width < MIN_SAFE_WINDOW_WIDTH) | |
| 3464 window_min_width = MIN_SAFE_WINDOW_WIDTH; | |
| 3465 if (window_min_height < MIN_SAFE_WINDOW_HEIGHT) | |
| 3466 window_min_height = MIN_SAFE_WINDOW_HEIGHT; | |
| 3467 } | |
| 3468 | |
| 440 | 3469 static int |
| 3470 frame_min_height (struct frame *frame) | |
| 3471 { | |
| 3472 /* For height, we have to see whether the frame has a minibuffer, and | |
| 3473 whether it wants a modeline. */ | |
| 3474 return (FRAME_MINIBUF_ONLY_P (frame) ? MIN_SAFE_WINDOW_HEIGHT - 1 | |
| 3475 : (! FRAME_HAS_MINIBUF_P (frame)) ? MIN_SAFE_WINDOW_HEIGHT | |
| 3476 : 2 * MIN_SAFE_WINDOW_HEIGHT - 1); | |
| 3477 } | |
| 3478 | |
| 3479 /* Return non-zero if both frame sizes are less than or equal to | |
| 3480 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
|
3481 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
|
3482 frame_size_valid_p (struct frame *frame, int cols, int rows) |
| 440 | 3483 { |
| 3484 return (rows >= frame_min_height (frame) | |
| 3485 && cols >= MIN_SAFE_WINDOW_WIDTH); | |
| 3486 } | |
| 3487 | |
| 3488 /* Return non-zero if both frame sizes are less than or equal to | |
| 3489 minimal allowed values. WIDTH and HEIGHT are in pixels */ | |
| 3490 int | |
| 3491 frame_pixsize_valid_p (struct frame *frame, int width, int height) | |
| 3492 { | |
| 3493 int rows, cols; | |
| 5043 | 3494 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
|
3495 return frame_size_valid_p (frame, cols, rows); |
| 440 | 3496 } |
| 3497 | |
| 428 | 3498 /* If *ROWS or *COLS are too small a size for FRAME, set them to the |
| 3499 minimum allowable size. */ | |
| 3500 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
|
3501 check_frame_size (struct frame *frame, int *cols, int *rows) |
| 428 | 3502 { |
| 440 | 3503 int min_height = frame_min_height (frame); |
| 5043 | 3504 int min_pixwidth, min_pixheight; |
| 3505 int min_geomwidth, min_geomheight; | |
| 3506 | |
| 3507 /* There is no char_to_frame_unit_size(). This can be done with | |
| 3508 frame_conversion_internal(), but that's currently static, and we can | |
| 3509 do it fine with two steps, as follows. */ | |
| 3510 char_to_pixel_size (frame, MIN_SAFE_WINDOW_WIDTH, min_height, | |
| 3511 &min_pixwidth, &min_pixheight); | |
| 3512 pixel_to_frame_unit_size (frame, min_pixwidth, min_pixheight, | |
| 3513 &min_geomwidth, &min_geomheight); | |
| 3514 if (*rows < min_geomheight) | |
| 3515 *rows = min_geomheight; | |
| 3516 if (*cols < min_geomwidth) | |
| 3517 *cols = min_geomwidth; | |
| 428 | 3518 } |
| 3519 | |
| 3520 /* Normally the window is deleted if it gets too small. | |
| 3521 nodelete nonzero means do not do this. | |
| 3522 (The caller should check later and do so if appropriate) */ | |
| 3523 static void | |
| 3524 set_window_pixsize (Lisp_Object window, int new_pixsize, int nodelete, | |
| 3525 int set_height) | |
| 3526 { | |
| 3527 struct window *w = XWINDOW (window); | |
| 3528 struct frame *f = XFRAME (w->frame); | |
| 3529 struct window *c; | |
| 3530 int old_pixsize = (set_height ? WINDOW_HEIGHT (w) : WINDOW_WIDTH (w)); | |
| 3531 Lisp_Object child, minor_kid, major_kid; | |
| 3532 int minsize; | |
| 3533 int line_size; | |
| 3534 int defheight, defwidth; | |
| 3535 | |
|
5047
07dcc7000bbf
put width before height consistently, fix a real bug found in the process
Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
3536 default_face_width_and_height (window, &defwidth, &defheight); |
| 428 | 3537 line_size = (set_height ? defheight : defwidth); |
| 3538 | |
| 3539 check_min_window_sizes (); | |
| 3540 | |
| 3541 minsize = (set_height ? window_min_height : window_min_width); | |
| 3542 minsize *= line_size; | |
| 3543 | |
| 3544 if (!nodelete | |
| 3545 && !TOP_LEVEL_WINDOW_P (w) | |
|
4375
74e0e1131e01
Update window-size computation.
Mike Sperber <sperber@deinprogramm.de>
parents:
3707
diff
changeset
|
3546 && (new_pixsize + window_modeline_height (w)) < minsize) |
| 428 | 3547 { |
| 3548 Fdelete_window (window, Qnil); | |
| 3549 return; | |
| 3550 } | |
| 3551 | |
| 3552 SET_LAST_MODIFIED (w, 0); | |
| 3553 SET_LAST_FACECHANGE (w); | |
| 3554 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f); /* multiple windows affected */ | |
| 3555 if (set_height) | |
| 3556 { | |
| 3557 WINDOW_HEIGHT (w) = new_pixsize; | |
| 3558 major_kid = w->vchild; | |
| 3559 minor_kid = w->hchild; | |
| 3560 } | |
| 3561 else | |
| 3562 { | |
| 3563 WINDOW_WIDTH (w) = new_pixsize; | |
| 3564 major_kid = w->hchild; | |
| 3565 minor_kid = w->vchild; | |
| 3566 } | |
| 3567 | |
| 3568 if (!NILP (minor_kid)) | |
| 3569 { | |
| 3570 for (child = minor_kid; !NILP (child); child = XWINDOW (child)->next) | |
| 3571 { | |
| 3572 if (set_height) | |
| 3573 WINDOW_TOP (XWINDOW (child)) = WINDOW_TOP (w); | |
| 3574 else | |
| 3575 WINDOW_LEFT (XWINDOW (child)) = WINDOW_LEFT (w); | |
| 3576 | |
| 3577 set_window_pixsize (child, new_pixsize, nodelete, set_height); | |
| 3578 } | |
| 3579 } | |
| 3580 else if (!NILP (major_kid)) | |
| 3581 { | |
| 3582 int last_pos, last_old_pos, pos, old_pos, first; | |
| 3583 int pixel_adj_left = new_pixsize - old_pixsize; | |
| 3584 int div_val = old_pixsize << 1; | |
| 3585 | |
| 3586 /* | |
| 3587 * Previously we bailed out here if there was no size change. | |
| 3588 * (pixel_adj_left == 0) But this broke toolbar updates. If a | |
| 3589 * toolbar appears or disappears, windows may not change size, | |
| 3590 * but their top and left coordinates need to be updated. | |
| 3591 * | |
| 3592 * So we don't bail until after the loop below. | |
| 3593 */ | |
| 3594 | |
| 3595 last_pos = first = (set_height ? WINDOW_TOP (w) : WINDOW_LEFT (w)); | |
| 3596 last_old_pos = 0; | |
| 3597 | |
| 3598 for (child = major_kid; !NILP (child); child = c->next) | |
| 3599 { | |
| 3600 c = XWINDOW (child); | |
| 3601 | |
| 3602 if (set_height) | |
| 3603 { | |
| 3604 old_pos = last_old_pos + WINDOW_HEIGHT (c); | |
| 3605 WINDOW_TOP (c) = last_pos; | |
| 3606 } | |
| 3607 else | |
| 3608 { | |
| 3609 old_pos = last_old_pos + WINDOW_WIDTH (c); | |
| 3610 WINDOW_LEFT (c) = last_pos; | |
| 3611 } | |
| 3612 | |
| 3613 pos = (((old_pos * new_pixsize) << 1) + old_pixsize) / div_val; | |
| 3614 /* All but the last window should have a height which is | |
| 3615 a multiple of the default line height. */ | |
| 3616 if (!NILP (c->next)) | |
|
4446
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3617 { |
|
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3618 /* |
|
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3619 * 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
|
3620 * 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
|
3621 * cancel out actually do cancel out. |
|
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3622 */ |
|
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3623 if (pixel_adj_left < 0) |
|
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3624 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
|
3625 else |
|
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3626 pos = (pos / line_size) * line_size; |
|
c32b3d10c56b
Fix problem with `resize-minibuffer-mode'.
Mike Sperber <sperber@deinprogramm.de>
parents:
4375
diff
changeset
|
3627 } |
| 428 | 3628 |
| 3629 /* Avoid confusion: don't delete child if it becomes too small */ | |
| 3630 set_window_pixsize (child, pos + first - last_pos, 1, set_height); | |
| 3631 | |
| 3632 last_pos = pos + first; | |
| 3633 last_old_pos = old_pos; | |
| 3634 } | |
| 3635 | |
| 3636 /* Sometimes we may get called with our old size. In that case | |
| 3637 we don't need to do anything else. */ | |
| 3638 if (!pixel_adj_left) | |
| 3639 return; | |
| 3640 | |
| 3641 /* Now delete any children that became too small. */ | |
| 3642 if (!nodelete) | |
| 3643 for (child = major_kid; !NILP (child); child = XWINDOW (child)->next) | |
| 3644 { | |
| 3645 if (set_height) | |
| 3646 set_window_pixheight (child, WINDOW_HEIGHT (XWINDOW (child)), 0); | |
| 3647 else | |
| 3648 set_window_pixwidth (child, WINDOW_WIDTH (XWINDOW (child)), 0); | |
| 3649 } | |
| 3650 } | |
| 3651 } | |
| 3652 | |
| 3653 /* Set the height of WINDOW and all its inferiors. */ | |
| 3654 void | |
| 3655 set_window_pixheight (Lisp_Object window, int new_pixheight, int nodelete) | |
| 3656 { | |
| 3657 set_window_pixsize (window, new_pixheight, nodelete, 1); | |
| 3658 } | |
| 3659 | |
| 3660 /* Recursively set width of WINDOW and its inferiors. */ | |
| 3661 void | |
| 3662 set_window_pixwidth (Lisp_Object window, int new_pixwidth, int nodelete) | |
| 3663 { | |
| 3664 set_window_pixsize (window, new_pixwidth, nodelete, 0); | |
| 3665 } | |
| 3666 | |
| 3667 | |
| 3668 static int window_select_count; | |
| 3669 | |
| 440 | 3670 DEFUN ("set-window-buffer", Fset_window_buffer, 2, 3, 0, /* |
| 428 | 3671 Make WINDOW display BUFFER as its contents. |
| 3672 BUFFER can be a buffer or buffer name. | |
| 440 | 3673 |
| 442 | 3674 With non-nil optional argument NORECORD, do not modify the |
| 440 | 3675 global or per-frame buffer ordering. |
| 428 | 3676 */ |
| 440 | 3677 (window, buffer, norecord)) |
| 428 | 3678 { |
| 3679 Lisp_Object tem; | |
| 3680 struct window *w = decode_window (window); | |
| 448 | 3681 int old_buffer_local_face_property = 0; |
| 428 | 3682 |
| 3683 buffer = Fget_buffer (buffer); | |
| 3684 CHECK_BUFFER (buffer); | |
| 3685 | |
| 3686 if (!BUFFER_LIVE_P (XBUFFER (buffer))) | |
| 563 | 3687 invalid_operation ("Attempt to display deleted buffer", Qunbound); |
| 428 | 3688 |
| 3689 tem = w->buffer; | |
| 3690 if (NILP (tem)) | |
| 563 | 3691 invalid_operation ("Window is deleted", Qunbound); |
| 428 | 3692 else if (EQ (tem, buffer)) |
| 3693 return Qnil; | |
| 3694 else if (! EQ (tem, Qt)) /* w->buffer is t when the window | |
| 3695 is first being set up. */ | |
| 3696 { | |
| 3697 if (!NILP (w->dedicated) && !EQ (tem, buffer)) | |
| 563 | 3698 signal_error (Qinvalid_operation, "Window is dedicated to buffer", tem); |
| 428 | 3699 |
| 448 | 3700 old_buffer_local_face_property = |
| 3701 XBUFFER (w->buffer)->buffer_local_face_property; | |
| 428 | 3702 unshow_buffer (w); |
| 3703 } | |
| 3704 | |
| 3705 w->buffer = buffer; | |
| 3706 w->window_end_pos[CURRENT_DISP] = 0; | |
| 3707 w->hscroll = 0; | |
| 3708 w->modeline_hscroll = 0; | |
| 844 | 3709 #if 0 /* pre point caches */ |
| 428 | 3710 Fset_marker (w->pointm[CURRENT_DISP], |
| 3711 make_int (BUF_PT (XBUFFER (buffer))), | |
| 3712 buffer); | |
| 3713 set_marker_restricted (w->start[CURRENT_DISP], | |
| 3714 make_int (XBUFFER (buffer)->last_window_start), | |
| 3715 buffer); | |
| 844 | 3716 #else |
| 3717 { | |
| 3718 Lisp_Object marker = Fgethash (buffer, w->saved_point_cache, Qnil); | |
| 3719 Lisp_Object newpoint = | |
| 3720 !NILP (marker) ? make_int (marker_position (marker)) : | |
| 3721 make_int (BUF_PT (XBUFFER (buffer))); | |
| 3722 /* Previously, we had in here set-window-point, which did one of the | |
| 3723 following two, but not both. However, that could result in pointm | |
| 3724 being in a different buffer from the window's buffer! Probably | |
| 3725 not a travesty since it always occurred when the window was | |
| 3726 selected, meaning its value of point was ignored in favor of the | |
| 3727 buffer's; but it tripped an assert() in unshow_buffer(). */ | |
| 3728 set_marker_restricted (w->pointm[CURRENT_DISP], newpoint, buffer); | |
| 3729 if (EQ (wrap_window (w), Fselected_window (Qnil))) | |
| 3730 Fgoto_char (newpoint, buffer); /* this will automatically clip to | |
| 3731 accessible */ | |
| 3732 marker = Fgethash (buffer, w->saved_last_window_start_cache, Qnil); | |
| 3733 set_marker_restricted (w->start[CURRENT_DISP], | |
| 3734 !NILP (marker) ? | |
| 3735 make_int (marker_position (marker)) : | |
| 3736 make_int (XBUFFER (buffer)->last_window_start), | |
| 3737 buffer); | |
| 3738 } | |
| 3739 #endif | |
| 3740 | |
| 428 | 3741 Fset_marker (w->sb_point, w->start[CURRENT_DISP], buffer); |
| 3742 /* set start_at_line_beg correctly. GE */ | |
| 844 | 3743 w->start_at_line_beg = |
| 3744 beginning_of_line_p (XBUFFER (buffer), | |
| 3745 marker_position (w->start[CURRENT_DISP])); | |
| 3746 w->force_start = 0; /* XEmacs fix */ | |
| 428 | 3747 SET_LAST_MODIFIED (w, 1); |
| 3748 SET_LAST_FACECHANGE (w); | |
| 3749 MARK_WINDOWS_CHANGED (w); | |
| 448 | 3750 { |
| 3751 int new_buffer_local_face_property = | |
| 3752 XBUFFER (w->buffer)->buffer_local_face_property; | |
| 3753 | |
| 3754 if (new_buffer_local_face_property | |
| 3755 || new_buffer_local_face_property != old_buffer_local_face_property) | |
| 3756 MARK_WINDOW_FACES_CHANGED (w); | |
| 3757 } | |
| 428 | 3758 recompute_all_cached_specifiers_in_window (w); |
| 3759 if (EQ (window, Fselected_window (Qnil))) | |
| 3760 { | |
| 440 | 3761 if (NILP (norecord)) |
| 3762 Frecord_buffer (buffer); | |
| 3763 | |
| 428 | 3764 Fset_buffer (buffer); |
| 3765 } | |
| 3766 return Qnil; | |
| 3767 } | |
| 3768 | |
| 3769 DEFUN ("select-window", Fselect_window, 1, 2, 0, /* | |
| 3770 Select WINDOW. Most editing will apply to WINDOW's buffer. | |
| 3771 The main editor command loop selects the buffer of the selected window | |
| 3772 before each command. | |
| 3773 | |
| 442 | 3774 With non-nil optional argument NORECORD, do not modify the |
| 428 | 3775 global or per-frame buffer ordering. |
| 3776 */ | |
| 3777 (window, norecord)) | |
| 3778 { | |
| 3779 struct window *w; | |
| 3780 Lisp_Object old_selected_window = Fselected_window (Qnil); | |
| 3781 | |
| 3782 CHECK_LIVE_WINDOW (window); | |
| 3783 w = XWINDOW (window); | |
| 3784 | |
| 3785 /* we have already caught dead-window errors */ | |
| 3786 if (!NILP (w->hchild) || !NILP (w->vchild)) | |
| 563 | 3787 invalid_operation ("Trying to select non-leaf window", Qunbound); |
| 428 | 3788 |
| 3789 w->use_time = make_int (++window_select_count); | |
| 442 | 3790 |
| 428 | 3791 if (EQ (window, old_selected_window)) |
| 3792 return window; | |
| 3793 | |
| 3794 /* deselect the old window, if it exists (it might not exist if | |
| 3795 the selected device has no frames, which occurs at startup) */ | |
| 3796 if (!NILP (old_selected_window)) | |
| 3797 { | |
| 3798 struct window *ow = XWINDOW (old_selected_window); | |
| 3799 | |
| 3800 Fset_marker (ow->pointm[CURRENT_DISP], | |
| 3801 make_int (BUF_PT (XBUFFER (ow->buffer))), | |
| 3802 ow->buffer); | |
| 3803 | |
| 3804 MARK_WINDOWS_CHANGED (ow); | |
| 3805 } | |
| 3806 | |
| 3807 /* now select the window's frame */ | |
| 3808 set_frame_selected_window (XFRAME (WINDOW_FRAME (w)), window); | |
| 3809 | |
| 3810 select_frame_1 (WINDOW_FRAME (w)); | |
| 3811 | |
| 3812 /* also select the window's buffer */ | |
| 3813 if (NILP (norecord)) | |
| 3814 Frecord_buffer (w->buffer); | |
| 3815 Fset_buffer (w->buffer); | |
| 3816 | |
| 3817 /* Go to the point recorded in the window. | |
| 3818 This is important when the buffer is in more | |
| 3819 than one window. It also matters when | |
| 3820 redisplay_window has altered point after scrolling, | |
| 3821 because it makes the change only in the window. */ | |
| 3822 { | |
| 665 | 3823 Charbpos new_point = marker_position (w->pointm[CURRENT_DISP]); |
| 428 | 3824 if (new_point < BUF_BEGV (current_buffer)) |
| 3825 new_point = BUF_BEGV (current_buffer); | |
| 3826 else if (new_point > BUF_ZV (current_buffer)) | |
| 3827 new_point = BUF_ZV (current_buffer); | |
| 3828 | |
| 3829 BUF_SET_PT (current_buffer, new_point); | |
| 3830 } | |
| 3831 | |
| 3832 MARK_WINDOWS_CHANGED (w); | |
| 3833 | |
| 3834 return window; | |
| 3835 } | |
| 3836 | |
| 3837 Lisp_Object | |
| 3838 display_buffer (Lisp_Object buffer, Lisp_Object not_this_window_p, | |
| 3839 Lisp_Object override_frame) | |
| 3840 { | |
| 3841 return call3 (Qdisplay_buffer, buffer, not_this_window_p, override_frame); | |
| 3842 } | |
| 3843 | |
| 3844 void | |
| 3845 temp_output_buffer_show (Lisp_Object buf, Lisp_Object same_frame) | |
| 3846 { | |
| 3847 /* This function can GC */ | |
| 3848 Lisp_Object window; | |
| 3849 struct window *w; | |
| 3850 struct buffer *b = XBUFFER (buf); | |
| 3851 | |
| 3852 BUF_SAVE_MODIFF (XBUFFER (buf)) = BUF_MODIFF (b); | |
| 3853 widen_buffer (b, 0); | |
| 3854 BUF_SET_PT (b, BUF_BEG (b)); | |
| 3855 | |
| 3856 if (!NILP (Vtemp_buffer_show_function)) | |
| 3857 call1 (Vtemp_buffer_show_function, buf); | |
| 3858 else | |
| 3859 { | |
| 3860 window = display_buffer (buf, Qnil, same_frame); | |
| 3861 | |
| 3862 if (!EQ (XWINDOW (window)->frame, Fselected_frame (Qnil))) | |
| 3863 Fmake_frame_visible (WINDOW_FRAME (XWINDOW (window))); | |
| 3864 | |
| 3865 Vminibuffer_scroll_window = window; | |
| 3866 w = XWINDOW (window); | |
| 3867 w->hscroll = 0; | |
| 3868 w->modeline_hscroll = 0; | |
| 3869 set_marker_restricted (w->start[CURRENT_DISP], make_int (1), buf); | |
| 3870 set_marker_restricted (w->pointm[CURRENT_DISP], make_int (1), buf); | |
| 3871 set_marker_restricted (w->sb_point, make_int (1), buf); | |
| 3872 } | |
| 3873 } | |
| 3874 | |
| 3875 static void | |
| 3876 make_dummy_parent (Lisp_Object window) | |
| 3877 { | |
| 3878 struct window *o = XWINDOW (window); | |
|
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|
3879 Lisp_Object obj = ALLOC_NORMAL_LISP_OBJECT (window); |
|
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|
3880 struct window *p = XWINDOW (obj); |
|
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|
3881 |
|
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|
3882 copy_lisp_object (obj, window); |
| 428 | 3883 |
| 3884 /* Don't copy the pointers to the line start cache or the face | |
| 3885 instances. */ | |
| 3886 p->line_start_cache = Dynarr_new (line_start_cache); | |
| 3092 | 3887 #ifdef NEW_GC |
| 3888 p->face_cachels = Dynarr_lisp_new (face_cachel, | |
| 3889 &lrecord_face_cachel_dynarr, | |
| 3890 &lrecord_face_cachel); | |
| 3891 p->glyph_cachels = Dynarr_lisp_new (glyph_cachel, | |
| 3892 &lrecord_glyph_cachel_dynarr, | |
| 3893 &lrecord_glyph_cachel); | |
| 3894 #else /* not NEW_GC */ | |
| 428 | 3895 p->face_cachels = Dynarr_new (face_cachel); |
| 3896 p->glyph_cachels = Dynarr_new (glyph_cachel); | |
| 3092 | 3897 #endif /* not NEW_GC */ |
| 442 | 3898 p->subwindow_instance_cache = |
| 450 | 3899 make_image_instance_cache_hash_table (); |
| 428 | 3900 |
| 3901 /* Put new into window structure in place of window */ | |
|
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|
3902 replace_window (window, obj); |
| 428 | 3903 |
| 3904 o->next = Qnil; | |
| 3905 o->prev = Qnil; | |
| 3906 o->vchild = Qnil; | |
| 3907 o->hchild = Qnil; | |
|
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|
3908 o->parent = obj; |
| 428 | 3909 |
| 3910 p->start[CURRENT_DISP] = Qnil; | |
| 3911 p->start[DESIRED_DISP] = Qnil; | |
| 3912 p->start[CMOTION_DISP] = Qnil; | |
| 3913 p->pointm[CURRENT_DISP] = Qnil; | |
| 3914 p->pointm[DESIRED_DISP] = Qnil; | |
| 3915 p->pointm[CMOTION_DISP] = Qnil; | |
| 3916 p->sb_point = Qnil; | |
| 844 | 3917 p->saved_point_cache = make_saved_buffer_point_cache (); |
| 3918 p->saved_last_window_start_cache = make_saved_buffer_point_cache (); | |
| 428 | 3919 p->buffer = Qnil; |
| 3920 } | |
| 3921 | |
| 3922 DEFUN ("split-window", Fsplit_window, 0, 3, "", /* | |
| 3923 Split WINDOW, putting SIZE lines in the first of the pair. | |
| 444 | 3924 WINDOW defaults to the selected one and SIZE to half its size. |
| 707 | 3925 If optional third arg HORFLAG is non-nil, split side by side and put |
| 3926 SIZE columns in the first of the pair. The newly created window is | |
| 3927 returned. | |
| 428 | 3928 */ |
| 444 | 3929 (window, size, horflag)) |
| 428 | 3930 { |
| 3025 | 3931 Lisp_Object new_; |
| 428 | 3932 struct window *o, *p; |
| 3933 struct frame *f; | |
| 444 | 3934 int csize; |
| 428 | 3935 int psize; |
| 3936 | |
| 3937 if (NILP (window)) | |
| 3938 window = Fselected_window (Qnil); | |
| 3939 else | |
| 3940 CHECK_LIVE_WINDOW (window); | |
| 3941 | |
| 3942 o = XWINDOW (window); | |
| 3943 f = XFRAME (WINDOW_FRAME (o)); | |
| 3944 | |
| 444 | 3945 if (NILP (size)) |
| 428 | 3946 { |
| 3947 if (!NILP (horflag)) | |
| 3948 /* In the new scheme, we are symmetric with respect to separators | |
| 3949 so there is no need to do weird things here. */ | |
| 3950 { | |
| 956 | 3951 psize = (WINDOW_WIDTH (o) + window_divider_width (o)) >> 1; |
| 444 | 3952 csize = window_pixel_width_to_char_width (o, psize, 0); |
| 428 | 3953 } |
| 3954 else | |
| 3955 { | |
| 3956 psize = WINDOW_HEIGHT (o) >> 1; | |
| 444 | 3957 csize = window_pixel_height_to_char_height (o, psize, 1); |
| 428 | 3958 } |
| 3959 } | |
| 3960 else | |
| 3961 { | |
| 444 | 3962 CHECK_INT (size); |
| 3963 csize = XINT (size); | |
| 428 | 3964 if (!NILP (horflag)) |
| 444 | 3965 psize = window_char_width_to_pixel_width (o, csize, 0); |
| 428 | 3966 else |
| 444 | 3967 psize = window_char_height_to_pixel_height (o, csize, 1); |
| 428 | 3968 } |
| 3969 | |
| 3970 if (MINI_WINDOW_P (o)) | |
| 563 | 3971 invalid_operation ("Attempt to split minibuffer window", Qunbound); |
| 428 | 3972 else if (FRAME_NO_SPLIT_P (XFRAME (WINDOW_FRAME (o)))) |
| 563 | 3973 invalid_operation ("Attempt to split unsplittable frame", Qunbound); |
| 428 | 3974 |
| 3975 check_min_window_sizes (); | |
| 3976 | |
| 3977 if (NILP (horflag)) | |
| 3978 { | |
| 444 | 3979 if (csize < window_min_height) |
| 563 | 3980 signal_error (Qinvalid_operation, "Window height too small (after splitting)", make_int (csize)); |
| 444 | 3981 if (csize + window_min_height > window_char_height (o, 1)) |
| 563 | 3982 signal_error (Qinvalid_operation, "Window height too small (after splitting)", |
| 3983 make_int (window_char_height (o, 1) - csize)); | |
| 428 | 3984 if (NILP (o->parent) |
| 3985 || NILP (XWINDOW (o->parent)->vchild)) | |
| 3986 { | |
| 3987 make_dummy_parent (window); | |
| 448 | 3988 #if 0 |
| 3989 /* #### I can't understand why you have to reset face | |
| 3990 cachels here. This can cause crash so let's disable it | |
| 3991 and see the difference. See redisplay-tests.el --yh */ | |
| 428 | 3992 reset_face_cachels (XWINDOW (window)); |
| 448 | 3993 #endif |
| 3025 | 3994 new_ = o->parent; |
| 3995 XWINDOW (new_)->vchild = window; | |
| 428 | 3996 XFRAME (o->frame)->mirror_dirty = 1; |
| 3997 } | |
| 3998 } | |
| 3999 else | |
| 4000 { | |
| 444 | 4001 if (csize < window_min_width) |
| 563 | 4002 signal_error (Qinvalid_operation, "Window width too small (after splitting)", make_int (csize)); |
| 444 | 4003 if (csize + window_min_width > window_char_width (o, 0)) |
| 563 | 4004 signal_error (Qinvalid_operation, "Window width too small (after splitting)", |
| 4005 make_int (window_char_width (o, 0) - csize)); | |
| 428 | 4006 if (NILP (o->parent) |
| 4007 || NILP (XWINDOW (o->parent)->hchild)) | |
| 4008 { | |
| 4009 make_dummy_parent (window); | |
| 448 | 4010 #if 0 |
| 4011 /* #### See above. */ | |
| 428 | 4012 reset_face_cachels (XWINDOW (window)); |
| 448 | 4013 #endif |
| 3025 | 4014 new_ = o->parent; |
| 4015 XWINDOW (new_)->hchild = window; | |
| 428 | 4016 XFRAME (o->frame)->mirror_dirty = 1; |
| 4017 } | |
| 4018 } | |
| 4019 | |
| 4020 /* Now we know that window's parent is a vertical combination | |
| 4021 if we are dividing vertically, or a horizontal combination | |
| 4022 if we are making side-by-side windows */ | |
| 4023 | |
| 4024 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f); | |
| 3025 | 4025 new_ = allocate_window (); |
| 4026 p = XWINDOW (new_); | |
| 428 | 4027 |
| 4028 p->frame = o->frame; | |
| 4029 p->next = o->next; | |
| 4030 if (!NILP (p->next)) | |
| 3025 | 4031 XWINDOW (p->next)->prev = new_; |
| 428 | 4032 p->prev = window; |
| 3025 | 4033 o->next = new_; |
| 428 | 4034 p->parent = o->parent; |
| 4035 p->buffer = Qt; | |
| 4036 | |
| 4037 reset_face_cachels (p); | |
| 4038 reset_glyph_cachels (p); | |
| 4039 | |
| 4040 | |
| 4041 /* Apportion the available frame space among the two new windows */ | |
| 4042 | |
| 4043 if (!NILP (horflag)) | |
| 4044 { | |
| 4045 WINDOW_HEIGHT (p) = WINDOW_HEIGHT (o); | |
| 4046 WINDOW_TOP (p) = WINDOW_TOP (o); | |
| 4047 WINDOW_WIDTH (p) = WINDOW_WIDTH (o) - psize; | |
| 4048 WINDOW_WIDTH (o) = psize; | |
| 4049 WINDOW_LEFT (p) = WINDOW_LEFT (o) + psize; | |
| 4050 } | |
| 4051 else | |
| 4052 { | |
| 4053 WINDOW_LEFT (p) = WINDOW_LEFT (o); | |
| 4054 WINDOW_WIDTH (p) = WINDOW_WIDTH (o); | |
| 4055 WINDOW_HEIGHT (p) = WINDOW_HEIGHT (o) - psize; | |
| 4056 WINDOW_HEIGHT (o) = psize; | |
| 4057 WINDOW_TOP (p) = WINDOW_TOP (o) + psize; | |
| 4058 } | |
| 4059 | |
| 4060 XFRAME (p->frame)->mirror_dirty = 1; | |
| 853 | 4061 |
| 3025 | 4062 note_object_created (new_); |
| 853 | 4063 |
| 428 | 4064 /* do this last (after the window is completely initialized and |
| 4065 the mirror-dirty flag is set) so that specifier recomputation | |
| 4066 caused as a result of this will work properly and not abort. */ | |
| 3025 | 4067 Fset_window_buffer (new_, o->buffer, Qt); |
| 4068 return new_; | |
| 428 | 4069 } |
| 4070 | |
| 4071 | |
| 4072 DEFUN ("enlarge-window", Fenlarge_window, 1, 3, "_p", /* | |
| 444 | 4073 Make the selected window COUNT lines taller. |
| 4074 From program, optional second arg HORIZONTALP non-nil means grow | |
| 4075 sideways COUNT columns, and optional third arg WINDOW specifies the | |
| 4076 window to change instead of the selected window. | |
| 428 | 4077 */ |
| 444 | 4078 (count, horizontalp, window)) |
| 4079 { | |
| 4080 CHECK_INT (count); | |
| 4081 change_window_height (window, XINT (count), horizontalp, /* inpixels */ 0); | |
| 428 | 4082 return Qnil; |
| 4083 } | |
| 4084 | |
| 4085 DEFUN ("enlarge-window-pixels", Fenlarge_window_pixels, 1, 3, "_p", /* | |
| 444 | 4086 Make the selected window COUNT pixels taller. |
| 4087 From program, optional second arg HORIZONTALP non-nil means grow | |
| 4088 sideways COUNT pixels, and optional third arg WINDOW specifies the | |
| 4089 window to change instead of the selected window. | |
| 428 | 4090 */ |
| 444 | 4091 (count, horizontalp, window)) |
| 4092 { | |
| 4093 CHECK_INT (count); | |
| 4094 change_window_height (window, XINT (count), horizontalp, /* inpixels */ 1); | |
| 428 | 4095 return Qnil; |
| 4096 } | |
| 4097 | |
| 4098 DEFUN ("shrink-window", Fshrink_window, 1, 3, "_p", /* | |
| 444 | 4099 Make the selected window COUNT lines shorter. |
| 4100 From program, optional second arg HORIZONTALP non-nil means shrink | |
| 4101 sideways COUNT columns, and optional third arg WINDOW specifies the | |
| 4102 window to change instead of the selected window. | |
| 428 | 4103 */ |
| 444 | 4104 (count, horizontalp, window)) |
| 4105 { | |
| 4106 CHECK_INT (count); | |
| 4107 change_window_height (window, -XINT (count), horizontalp, /* inpixels */ 0); | |
| 428 | 4108 return Qnil; |
| 4109 } | |
| 4110 | |
| 4111 DEFUN ("shrink-window-pixels", Fshrink_window_pixels, 1, 3, "_p", /* | |
| 444 | 4112 Make the selected window COUNT pixels smaller. |
| 4113 From program, optional second arg HORIZONTALP non-nil means shrink | |
| 4114 sideways COUNT pixels, and optional third arg WINDOW specifies the | |
| 4115 window to change instead of the selected window. | |
| 428 | 4116 */ |
| 444 | 4117 (count, horizontalp, window)) |
| 4118 { | |
| 4119 CHECK_INT (count); | |
| 4120 change_window_height (window, -XINT (count), horizontalp, /* inpixels */ 1); | |
| 428 | 4121 return Qnil; |
| 4122 } | |
| 4123 | |
| 4124 static int | |
| 4125 window_pixel_height_to_char_height (struct window *w, int pixel_height, | |
| 4126 int include_gutters_p) | |
| 4127 { | |
| 4128 int avail_height; | |
| 4129 int defheight, defwidth; | |
| 3687 | 4130 int char_height = 0; |
| 793 | 4131 Lisp_Object window = wrap_window (w); |
| 4132 | |
| 428 | 4133 |
| 4134 avail_height = (pixel_height - | |
| 4135 (include_gutters_p ? 0 : | |
| 442 | 4136 window_top_window_gutter_height (w) + |
| 4137 window_bottom_window_gutter_height (w))); | |
| 428 | 4138 |
|
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diff
changeset
|
4139 default_face_width_and_height (window, &defwidth, &defheight); |
| 428 | 4140 |
| 3687 | 4141 if (defheight) |
| 4142 char_height = avail_height / defheight; | |
| 428 | 4143 |
| 4144 /* It's the calling function's responsibility to check these values | |
| 4145 and make sure they're not out of range. | |
| 4146 | |
| 4147 #### We need to go through the calling functions and actually | |
| 4148 do this. */ | |
| 4149 return max (0, char_height); | |
| 4150 } | |
| 4151 | |
| 4152 static int | |
| 4153 window_char_height_to_pixel_height (struct window *w, int char_height, | |
| 4154 int include_gutters_p) | |
| 4155 { | |
| 4156 int avail_height; | |
| 4157 int defheight, defwidth; | |
| 4158 int pixel_height; | |
| 4159 | |
| 793 | 4160 Lisp_Object window = wrap_window (w); |
| 4161 | |
| 428 | 4162 |
|
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5043
diff
changeset
|
4163 default_face_width_and_height (window, &defwidth, &defheight); |
| 428 | 4164 |
| 4165 avail_height = char_height * defheight; | |
| 4166 pixel_height = (avail_height + | |
| 4167 (include_gutters_p ? 0 : | |
| 442 | 4168 window_top_window_gutter_height (w) + |
| 4169 window_bottom_window_gutter_height (w))); | |
| 428 | 4170 |
| 4171 /* It's the calling function's responsibility to check these values | |
| 4172 and make sure they're not out of range. | |
| 4173 | |
| 4174 #### We need to go through the calling functions and actually | |
| 4175 do this. */ | |
| 4176 return max (0, pixel_height); | |
| 4177 } | |
| 4178 | |
| 4179 /* Return number of default lines of text can fit in the window W. | |
| 4180 If INCLUDE_GUTTERS_P is 1, include "gutter" space (modeline plus | |
| 4181 horizontal scrollbar) in the space that is used for the calculation. | |
| 442 | 4182 This doesn't include space used by the frame gutters. |
| 428 | 4183 */ |
| 4184 int | |
| 4185 window_char_height (struct window *w, int include_gutters_p) | |
| 4186 { | |
| 442 | 4187 return window_pixel_height_to_char_height (w, window_pixel_height (w), |
| 428 | 4188 include_gutters_p); |
| 4189 } | |
| 4190 | |
| 4191 /* | |
| 4192 * Return number of lines currently displayed in window w. If | |
| 4193 * end-of-buffer is displayed then the area below end-of-buffer is assume | |
| 4194 * to be blank lines of default height. | |
| 4195 * Does not include the modeline. | |
| 4196 */ | |
| 4197 int | |
| 4198 window_displayed_height (struct window *w) | |
| 4199 { | |
| 4200 struct buffer *b = XBUFFER (w->buffer); | |
| 4201 display_line_dynarr *dla = window_display_lines (w, CURRENT_DISP); | |
| 4202 int num_lines; | |
| 4203 Charcount end_pos = (BUF_Z (b) - w->window_end_pos[CURRENT_DISP] > BUF_ZV (b) | |
| 4204 ? -1 | |
| 4205 : w->window_end_pos[CURRENT_DISP]); | |
| 4206 | |
| 4207 if (!Dynarr_length (dla)) | |
| 4208 return window_char_height (w, 0); | |
| 4209 | |
| 4210 num_lines = Dynarr_length (dla); | |
| 4211 | |
| 4212 /* #### Document and assert somewhere that w->window_end_pos == -1 | |
| 4213 indicates that end-of-buffer is being displayed. */ | |
| 4214 if (end_pos == -1) | |
| 4215 { | |
| 4967 | 4216 struct display_line *dl = Dynarr_begin (dla); |
| 428 | 4217 int ypos1 = dl->ypos + dl->descent; |
| 4218 int ypos2 = WINDOW_TEXT_BOTTOM (w); | |
| 4219 Lisp_Object window; | |
| 4220 int defheight, defwidth; | |
| 4221 | |
| 793 | 4222 window = wrap_window (w); |
| 428 | 4223 |
| 4224 if (dl->modeline) | |
| 4225 { | |
| 4226 num_lines--; | |
| 4227 | |
| 4228 if (Dynarr_length (dla) == 1) | |
| 4229 ypos1 = WINDOW_TEXT_TOP (w); | |
| 4230 else | |
| 4231 { | |
| 4232 dl = Dynarr_atp (dla, Dynarr_length (dla) - 1); | |
| 4233 /* If this line is clipped then we know that there is no | |
| 4234 blank room between eob and the modeline. If we are | |
| 4235 scrolling on clipped lines just know off the clipped | |
| 4236 line and return .*/ | |
| 4237 if (scroll_on_clipped_lines && dl->clip) | |
| 4238 return num_lines - 1; | |
| 4239 ypos1 = dl->ypos + dl->descent - dl->clip; | |
| 4240 } | |
| 4241 } | |
| 4242 | |
|
5047
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5043
diff
changeset
|
4243 default_face_width_and_height (window, &defwidth, &defheight); |
| 428 | 4244 /* #### This probably needs to know about the clipping area once a |
| 4245 final definition is decided on. */ | |
| 3707 | 4246 if (defheight) |
| 4247 num_lines += ((ypos2 - ypos1) / defheight); | |
| 428 | 4248 } |
| 4249 else | |
| 4250 { | |
| 4967 | 4251 if (num_lines > 1 && Dynarr_begin (dla)->modeline) |
| 428 | 4252 num_lines--; |
| 4253 | |
| 4254 if (scroll_on_clipped_lines | |
| 4255 && Dynarr_atp (dla, Dynarr_length (dla) - 1)->clip) | |
| 4256 num_lines--; | |
| 4257 } | |
| 4258 | |
| 4259 return num_lines; | |
| 4260 } | |
| 4261 | |
| 4262 static int | |
| 4263 window_pixel_width (Lisp_Object window) | |
| 4264 { | |
| 4265 return WINDOW_WIDTH (XWINDOW (window)); | |
| 4266 } | |
| 4267 | |
| 442 | 4268 /* Calculate the pixel of a window, optionally including margin space |
| 4269 but no vertical gutters. */ | |
| 428 | 4270 static int |
| 4271 window_pixel_width_to_char_width (struct window *w, int pixel_width, | |
| 4272 int include_margins_p) | |
| 4273 { | |
| 4274 int avail_width; | |
| 3676 | 4275 int char_width = 0; |
| 428 | 4276 int defheight, defwidth; |
| 793 | 4277 Lisp_Object window = wrap_window (w); |
| 4278 | |
| 428 | 4279 |
| 4280 avail_width = (pixel_width - | |
| 4281 window_left_gutter_width (w, 0) - | |
| 4282 window_right_gutter_width (w, 0) - | |
| 4283 (include_margins_p ? 0 : window_left_margin_width (w)) - | |
| 4284 (include_margins_p ? 0 : window_right_margin_width (w))); | |
| 4285 | |
|
5047
07dcc7000bbf
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Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
4286 default_face_width_and_height (window, &defwidth, &defheight); |
| 428 | 4287 |
| 3676 | 4288 if (defwidth) |
| 4289 char_width = (avail_width / defwidth); | |
| 428 | 4290 |
| 4291 /* It's the calling function's responsibility to check these values | |
| 4292 and make sure they're not out of range. | |
| 4293 | |
| 4294 #### We need to go through the calling functions and actually | |
| 4295 do this. */ | |
| 4296 return max (0, char_width); | |
| 4297 } | |
| 4298 | |
| 4299 static int | |
| 4300 window_char_width_to_pixel_width (struct window *w, int char_width, | |
| 4301 int include_margins_p) | |
| 4302 { | |
| 4303 int avail_width; | |
| 4304 int pixel_width; | |
| 4305 int defheight, defwidth; | |
| 793 | 4306 Lisp_Object window = wrap_window (w); |
| 4307 | |
| 428 | 4308 |
|
5047
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Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
4309 default_face_width_and_height (window, &defwidth, &defheight); |
| 428 | 4310 |
| 4311 avail_width = char_width * defwidth; | |
| 4312 pixel_width = (avail_width + | |
| 442 | 4313 window_left_window_gutter_width (w, 0) + |
| 4314 window_right_window_gutter_width (w, 0) + | |
| 428 | 4315 (include_margins_p ? 0 : window_left_margin_width (w)) + |
| 4316 (include_margins_p ? 0 : window_right_margin_width (w))); | |
| 4317 | |
| 4318 /* It's the calling function's responsibility to check these values | |
| 4319 and make sure they're not out of range. | |
| 4320 | |
| 4321 #### We need to go through the calling functions and actually | |
| 4322 do this. */ | |
| 4323 return max (0, pixel_width); | |
| 4324 } | |
| 4325 | |
| 4326 /* This returns the usable space which doesn't include space needed by | |
| 4327 scrollbars or divider lines. */ | |
| 4328 int | |
| 4329 window_char_width (struct window *w, int include_margins_p) | |
| 4330 { | |
| 4331 return window_pixel_width_to_char_width (w, WINDOW_WIDTH (w), | |
| 4332 include_margins_p); | |
| 4333 } | |
| 4334 | |
| 4335 #define MINSIZE(w) \ | |
| 4336 (widthflag \ | |
| 4337 ? window_min_width * defwidth \ | |
| 4338 : (defheight * (MINI_WINDOW_P (XWINDOW (w)) ? 1 : window_min_height))) | |
| 4339 | |
| 4340 #define CURBEG(w) \ | |
| 4341 *(widthflag ? (int *) &WINDOW_LEFT (w) : (int *) &WINDOW_TOP (w)) | |
| 4342 | |
| 4343 #define CURSIZE(w) \ | |
| 4344 *(widthflag ? (int *) &WINDOW_WIDTH (w) : (int *) &WINDOW_HEIGHT (w)) | |
| 4345 | |
| 4346 #define CURCHARSIZE(w) \ | |
| 4347 (widthflag ? window_char_width (w, 0) : window_char_height (w, 1)) | |
| 4348 | |
| 4349 #define MINCHARSIZE(window) \ | |
| 4350 (widthflag ? window_min_width : MINI_WINDOW_P (XWINDOW (window)) \ | |
| 4351 ? 1 : window_min_height) | |
| 4352 | |
| 442 | 4353 static int |
| 4354 window_pixheight (Lisp_Object w) | |
| 4355 { | |
| 4356 return window_pixel_height (XWINDOW (w)); | |
| 4357 } | |
| 4358 | |
| 428 | 4359 /* Unlike set_window_pixheight, this function |
| 4360 also changes the heights of the siblings so as to | |
| 4361 keep everything consistent. */ | |
| 4362 | |
| 4363 static void | |
| 444 | 4364 change_window_height (Lisp_Object window, int delta, Lisp_Object horizontalp, |
| 428 | 4365 int inpixels) |
| 4366 { | |
| 444 | 4367 struct window *win = decode_window (window); |
| 4368 int widthflag = !NILP (horizontalp); | |
| 428 | 4369 Lisp_Object parent; |
| 4370 struct window *w; | |
| 4371 struct frame *f; | |
| 4372 int *sizep; | |
| 4373 int (*sizefun) (Lisp_Object) = (widthflag | |
| 4374 ? window_pixel_width | |
| 442 | 4375 : window_pixheight); |
| 428 | 4376 void (*setsizefun) (Lisp_Object, int, int) = (widthflag |
| 4377 ? set_window_pixwidth | |
| 4378 : set_window_pixheight); | |
| 4379 int dim; | |
| 4380 int defheight, defwidth; | |
| 4381 | |
| 4382 if (delta == 0) | |
| 4383 return; | |
| 4384 | |
| 4385 check_min_window_sizes (); | |
| 4386 | |
| 793 | 4387 window = wrap_window (win); |
| 428 | 4388 f = XFRAME (win->frame); |
| 4389 if (EQ (window, FRAME_ROOT_WINDOW (f))) | |
| 563 | 4390 invalid_operation ("Won't change only window", Qunbound); |
| 428 | 4391 |
|
5047
07dcc7000bbf
put width before height consistently, fix a real bug found in the process
Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
4392 default_face_width_and_height (window, &defwidth, &defheight); |
| 428 | 4393 |
| 4394 while (1) | |
| 4395 { | |
| 4396 w = XWINDOW (window); | |
| 4397 parent = w->parent; | |
| 4398 if (NILP (parent)) | |
| 4399 { | |
| 4400 if (widthflag) | |
| 3078 | 4401 { |
| 4402 int new_pixsize; | |
| 4403 sizep = &CURSIZE (w); | |
| 3466 | 4404 dim = CURCHARSIZE (w); |
| 3078 | 4405 new_pixsize = inpixels?(*sizep + delta):(dim+delta); |
| 4406 set_window_pixsize (window, new_pixsize, 0, 0); | |
| 4407 return; | |
| 4408 } | |
| 428 | 4409 break; |
| 4410 } | |
| 4411 if (widthflag | |
| 4412 ? !NILP (XWINDOW (parent)->hchild) | |
| 4413 : !NILP (XWINDOW (parent)->vchild)) | |
| 4414 break; | |
| 4415 window = parent; | |
| 4416 } | |
| 4417 | |
| 4418 sizep = &CURSIZE (w); | |
| 4419 dim = CURCHARSIZE (w); | |
| 4420 | |
| 4421 if ((inpixels && (*sizep + delta) < MINSIZE (window)) || | |
| 4422 (!inpixels && (dim + delta) < MINCHARSIZE (window))) | |
| 4423 { | |
| 4424 if (MINI_WINDOW_P (XWINDOW (window))) | |
| 4425 return; | |
| 4426 else if (!NILP (parent)) | |
| 4427 { | |
| 4428 Fdelete_window (window, Qnil); | |
| 4429 return; | |
| 4430 } | |
| 4431 } | |
| 4432 | |
| 4433 if (!inpixels) | |
| 4434 delta *= (widthflag ? defwidth : defheight); | |
| 4435 | |
| 4436 { | |
| 4437 int maxdelta; | |
| 4438 | |
| 4439 maxdelta = ((!NILP (parent)) | |
| 4440 ? (*sizefun) (parent) - *sizep | |
| 4441 : ((!NILP (w->next)) | |
| 4442 ? (*sizefun) (w->next) - MINSIZE (w->next) | |
| 4443 : ((!NILP (w->prev)) | |
| 4444 ? (*sizefun) (w->prev) - MINSIZE (w->prev) | |
| 4445 /* This is a frame with only one window, | |
| 4446 a minibuffer-only or a minibufferless frame. */ | |
| 4447 : (delta = 0)))); | |
| 4448 | |
| 4449 if (delta > maxdelta) | |
| 4450 /* This case traps trying to make the minibuffer | |
| 4451 the full frame, or make the only window aside from the | |
| 4452 minibuffer the full frame. */ | |
| 4453 delta = maxdelta; | |
| 4454 | |
| 4455 if (delta == 0) | |
| 4456 return; | |
| 4457 | |
| 4458 #if 0 /* FSFmacs */ | |
| 4459 /* #### Chuck: is this correct? */ | |
| 4460 if (*sizep + delta < MINSIZE (window)) | |
| 4461 { | |
| 4462 Fdelete_window (window); | |
| 4463 return; | |
| 4464 } | |
| 4465 #endif | |
| 4466 } | |
| 4467 | |
| 4468 if (!NILP (w->next) && | |
| 4469 (*sizefun) (w->next) - delta >= (int) MINSIZE (w->next)) | |
| 4470 { | |
| 4471 CURBEG (XWINDOW (w->next)) += delta; | |
| 4472 (*setsizefun) (w->next, (*sizefun) (w->next) - delta, 0); | |
| 4473 (*setsizefun) (window, *sizep + delta, 0); | |
| 4474 } | |
| 4475 else if (!NILP (w->prev) && | |
| 4476 (*sizefun) (w->prev) - delta >= (int) MINSIZE (w->prev)) | |
| 4477 { | |
| 4478 (*setsizefun) (w->prev, (*sizefun) (w->prev) - delta, 0); | |
| 4479 CURBEG (w) -= delta; | |
| 4480 (*setsizefun) (window, *sizep + delta, 0); | |
| 4481 } | |
| 4482 else | |
| 4483 { | |
| 4484 int delta1; | |
| 4485 int opht = (*sizefun) (parent); | |
| 4486 | |
| 4487 /* If trying to grow this window to or beyond size of the parent, | |
| 4488 make delta1 so big that, on shrinking back down, | |
| 4489 all the siblings end up with less than one line and are deleted. */ | |
| 4490 if (opht <= *sizep + delta) | |
| 4491 delta1 = opht * opht * 2; | |
| 4492 /* Otherwise, make delta1 just right so that if we add delta1 | |
| 4493 lines to this window and to the parent, and then shrink | |
| 4494 the parent back to its original size, the new proportional | |
| 4495 size of this window will increase by delta. */ | |
| 4496 else | |
| 4497 delta1 = (delta * opht * 100) / ((opht - *sizep - delta) * 100); | |
| 4498 | |
| 4499 /* Add delta1 lines or columns to this window, and to the parent, | |
| 4500 keeping things consistent while not affecting siblings. */ | |
| 4501 CURSIZE (XWINDOW (parent)) = opht + delta1; | |
| 4502 (*setsizefun) (window, *sizep + delta1, 0); | |
| 4503 | |
| 4504 /* Squeeze out delta1 lines or columns from our parent, | |
| 4505 shrinking this window and siblings proportionately. | |
| 4506 This brings parent back to correct size. | |
| 4507 Delta1 was calculated so this makes this window the desired size, | |
| 4508 taking it all out of the siblings. */ | |
| 4509 (*setsizefun) (parent, opht, 0); | |
| 4510 } | |
| 4511 | |
| 4512 SET_LAST_MODIFIED (w, 0); | |
| 4513 SET_LAST_FACECHANGE (w); | |
| 4514 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f); | |
| 4515 /* overkill maybe, but better to be correct */ | |
| 4516 MARK_FRAME_GUTTERS_CHANGED (f); | |
| 4517 } | |
| 4518 #undef MINSIZE | |
| 4519 #undef CURBEG | |
| 4520 #undef CURSIZE | |
| 4521 #undef CURCHARSIZE | |
| 4522 #undef MINCHARSIZE | |
| 4523 | |
| 4524 | |
| 4525 | |
| 444 | 4526 /* Scroll contents of window WINDOW up COUNT lines. |
| 4527 If COUNT < (top line height / average line height) then we just adjust | |
| 4528 the top clip. */ | |
| 428 | 4529 void |
| 444 | 4530 window_scroll (Lisp_Object window, Lisp_Object count, int direction, |
| 578 | 4531 Error_Behavior errb) |
| 428 | 4532 { |
| 4533 struct window *w = XWINDOW (window); | |
| 4534 struct buffer *b = XBUFFER (w->buffer); | |
| 4535 int selected = EQ (window, Fselected_window (Qnil)); | |
| 4536 int value = 0; | |
| 4537 Lisp_Object point, tem; | |
| 4538 display_line_dynarr *dla; | |
| 4539 int fheight, fwidth, modeline = 0; | |
| 4540 struct display_line* dl; | |
| 4541 | |
| 4542 if (selected) | |
| 4543 point = make_int (BUF_PT (b)); | |
| 4544 else | |
| 4545 { | |
| 665 | 4546 Charbpos pos = marker_position (w->pointm[CURRENT_DISP]); |
| 428 | 4547 |
| 4548 if (pos < BUF_BEGV (b)) | |
| 4549 pos = BUF_BEGV (b); | |
| 4550 else if (pos > BUF_ZV (b)) | |
| 4551 pos = BUF_ZV (b); | |
| 4552 | |
| 4553 point = make_int (pos); | |
| 4554 } | |
| 4555 | |
| 4556 /* Always set force_start so that redisplay_window will run | |
| 4557 the window-scroll-functions. */ | |
| 4558 w->force_start = 1; | |
| 4559 | |
| 4560 /* #### When the fuck does this happen? I'm so glad that history has | |
| 4561 completely documented the behavior of the scrolling functions under | |
| 4562 all circumstances. */ | |
| 1708 | 4563 tem = Fpos_visible_in_window_p (point, window, Qnil); |
| 428 | 4564 if (NILP (tem)) |
| 4565 { | |
| 4566 Fvertical_motion (make_int (-window_char_height (w, 0) / 2), | |
| 4567 window, Qnil); | |
| 4568 Fset_marker (w->start[CURRENT_DISP], point, w->buffer); | |
| 4569 w->start_at_line_beg = beginning_of_line_p (b, XINT (point)); | |
| 4570 WINDOW_TEXT_TOP_CLIP (w) = 0; | |
| 4571 MARK_WINDOWS_CHANGED (w); | |
| 4572 } | |
| 4573 | |
| 444 | 4574 if (!NILP (count)) |
| 428 | 4575 { |
| 444 | 4576 if (EQ (count, Qminus)) |
| 428 | 4577 direction *= -1; |
| 4578 else | |
| 4579 { | |
| 444 | 4580 count = Fprefix_numeric_value (count); |
| 4581 value = XINT (count) * direction; | |
| 428 | 4582 |
| 4583 if (!value) | |
| 4584 return; /* someone just made a pointless call */ | |
| 4585 } | |
| 4586 } | |
| 4587 | |
| 4588 /* If the user didn't specify how far to scroll then we have to figure it | |
| 4589 out by ourselves. */ | |
| 444 | 4590 if (NILP (count) || EQ (count, Qminus)) |
| 428 | 4591 { |
| 4592 /* Going forwards is easy. If that is what we are doing then just | |
| 4593 set value and the section which handles the user specifying a | |
| 4594 positive value will work. */ | |
| 4595 if (direction == 1) | |
| 4596 { | |
| 4597 value = window_displayed_height (w) - next_screen_context_lines; | |
| 4598 value = (value < 1 ? 1 : value); | |
| 4599 } | |
| 4600 | |
| 4601 /* Going backwards is hard. We can't use the same loop used if the | |
| 4602 user specified a negative value because we care about | |
| 4603 next_screen_context_lines. In a variable height world you don't | |
| 4604 know how many lines above you can actually be displayed and still | |
| 4605 have the context lines appear. So we leave value set to 0 and add | |
| 4606 a separate section to deal with this. */ | |
| 4607 | |
| 4608 } | |
| 4609 | |
| 4610 if (direction == 1 && !value) | |
| 4611 { | |
| 4612 return; | |
| 4613 } | |
| 4614 | |
| 4615 /* Determine parameters to test for partial line scrolling with. */ | |
| 4616 dla = window_display_lines (w, CURRENT_DISP); | |
| 4617 | |
| 4618 if (INTP (Vwindow_pixel_scroll_increment)) | |
| 4619 fheight = XINT (Vwindow_pixel_scroll_increment); | |
| 440 | 4620 else if (!NILP (Vwindow_pixel_scroll_increment)) |
|
5047
07dcc7000bbf
put width before height consistently, fix a real bug found in the process
Ben Wing <ben@xemacs.org>
parents:
5043
diff
changeset
|
4621 default_face_width_and_height (window, &fwidth, &fheight); |
| 438 | 4622 |
| 428 | 4623 if (Dynarr_length (dla) >= 1) |
| 4967 | 4624 modeline = Dynarr_begin (dla)->modeline; |
| 428 | 4625 |
| 4626 dl = Dynarr_atp (dla, modeline); | |
| 438 | 4627 |
| 428 | 4628 if (value > 0) |
| 4629 { | |
| 4630 /* Go for partial display line scrolling. This just means bumping | |
| 4631 the clip by a reasonable amount and redisplaying, everything else | |
| 4632 remains unchanged. */ | |
| 4633 if (!NILP (Vwindow_pixel_scroll_increment) | |
| 4634 && | |
| 4635 Dynarr_length (dla) >= (1 + modeline) | |
| 4636 && | |
| 458 | 4637 (dl->ascent - dl->top_clip) > fheight * value) |
| 428 | 4638 { |
| 4639 WINDOW_TEXT_TOP_CLIP (w) += value * fheight; | |
| 4640 MARK_WINDOWS_CHANGED (w); | |
| 4641 } | |
| 4642 else | |
| 4643 { | |
| 4644 int vtarget; | |
| 665 | 4645 Charbpos startp, old_start; |
| 438 | 4646 |
| 428 | 4647 if (WINDOW_TEXT_TOP_CLIP (w)) |
| 4648 { | |
| 4649 WINDOW_TEXT_TOP_CLIP (w) = 0; | |
| 4650 MARK_WINDOWS_CHANGED (w); | |
| 4651 } | |
| 4652 | |
| 4653 old_start = marker_position (w->start[CURRENT_DISP]); | |
| 4654 startp = vmotion (w, old_start, value, &vtarget); | |
| 438 | 4655 |
| 428 | 4656 if (vtarget < value && |
| 4657 (w->window_end_pos[CURRENT_DISP] == -1 | |
| 4658 || (BUF_Z (b) - w->window_end_pos[CURRENT_DISP] > BUF_ZV (b)))) | |
| 4659 { | |
| 563 | 4660 maybe_signal_error_1 (Qend_of_buffer, Qnil, Qwindow, errb); |
| 428 | 4661 return; |
| 4662 } | |
| 4663 else | |
| 4664 { | |
| 4665 set_marker_restricted (w->start[CURRENT_DISP], make_int (startp), | |
| 4666 w->buffer); | |
| 4667 w->force_start = 1; | |
| 4668 w->start_at_line_beg = beginning_of_line_p (b, startp); | |
| 4669 MARK_WINDOWS_CHANGED (w); | |
| 438 | 4670 |
| 1708 | 4671 if (!point_would_be_visible (w, startp, XINT (point), 0)) |
| 844 | 4672 Fset_window_point (wrap_window (w), make_int (startp)); |
| 428 | 4673 } |
| 4674 } | |
| 4675 } | |
| 4676 else if (value < 0) | |
| 4677 { | |
| 4678 /* Go for partial display line scrolling. This just means bumping | |
| 4679 the clip by a reasonable amount and redisplaying, everything else | |
| 4680 remains unchanged. */ | |
| 4681 if (!NILP (Vwindow_pixel_scroll_increment) | |
| 4682 && | |
| 4683 Dynarr_length (dla) >= (1 + modeline) | |
| 4684 && | |
| 4685 (dl->ascent - dl->top_clip) - fheight * value < | |
| 4686 (dl->ascent + dl->descent - dl->clip) | |
| 4687 && | |
| 4688 WINDOW_TEXT_TOP_CLIP (w) + value * fheight > 0) | |
| 4689 { | |
| 4690 WINDOW_TEXT_TOP_CLIP (w) += value * fheight; | |
| 4691 MARK_WINDOWS_CHANGED (w); | |
| 4692 } | |
| 4693 else | |
| 4694 { | |
| 4695 int vtarget; | |
| 665 | 4696 Charbpos startp, old_start; |
| 438 | 4697 |
| 428 | 4698 if (WINDOW_TEXT_TOP_CLIP (w)) |
| 4699 { | |
| 4700 WINDOW_TEXT_TOP_CLIP (w) = 0; | |
| 4701 MARK_WINDOWS_CHANGED (w); | |
| 4702 } | |
| 438 | 4703 |
| 428 | 4704 old_start = marker_position (w->start[CURRENT_DISP]); |
| 4705 startp = vmotion (w, old_start, value, &vtarget); | |
| 438 | 4706 |
| 428 | 4707 if (vtarget > value |
| 4708 && marker_position (w->start[CURRENT_DISP]) == BUF_BEGV (b)) | |
| 4709 { | |
| 563 | 4710 maybe_signal_error_1 (Qbeginning_of_buffer, Qnil, Qwindow, errb); |
| 428 | 4711 return; |
| 4712 } | |
| 4713 else | |
| 4714 { | |
| 4715 set_marker_restricted (w->start[CURRENT_DISP], make_int (startp), | |
| 4716 w->buffer); | |
| 4717 w->force_start = 1; | |
| 4718 w->start_at_line_beg = beginning_of_line_p (b, startp); | |
| 4719 MARK_WINDOWS_CHANGED (w); | |
| 438 | 4720 |
| 440 | 4721 /* #### Scroll back by less than a line. This code was |
| 4722 originally for scrolling over large pixmaps and it | |
| 4723 loses when a line being *exposed* at the top of the | |
| 4724 window is bigger than the current one. However, for | |
| 4725 pixel based scrolling in general we can guess that | |
| 4726 the line we are going to display is probably the same | |
| 4727 size as the one we are on. In that instance we can | |
| 4728 have a reasonable stab at a suitable top clip. Fixing | |
| 4729 this properly is hard (and probably slow) as we would | |
| 4730 have to call redisplay to figure out the exposed line | |
| 4731 size. */ | |
| 4732 if (!NILP (Vwindow_pixel_scroll_increment) | |
| 4733 && Dynarr_length (dla) >= (1 + modeline) | |
| 4734 && dl->ascent + fheight * value > 0) | |
| 4735 { | |
| 4736 WINDOW_TEXT_TOP_CLIP (w) = (dl->ascent + fheight * value); | |
| 4737 } | |
| 4738 | |
| 1708 | 4739 if (!point_would_be_visible (w, startp, XINT (point), 0)) |
| 428 | 4740 { |
| 665 | 4741 Charbpos new_point; |
| 438 | 4742 |
| 428 | 4743 if (MINI_WINDOW_P (w)) |
| 4744 new_point = startp; | |
| 4745 else | |
| 4746 new_point = start_of_last_line (w, startp); | |
| 438 | 4747 |
| 844 | 4748 Fset_window_point (wrap_window (w), make_int (new_point)); |
| 428 | 4749 } |
| 4750 } | |
| 4751 } | |
| 4752 } | |
| 4753 else /* value == 0 && direction == -1 */ | |
| 4754 { | |
| 4755 if (WINDOW_TEXT_TOP_CLIP (w)) | |
| 4756 { | |
| 4757 WINDOW_TEXT_TOP_CLIP (w) = 0; | |
| 4758 MARK_WINDOWS_CHANGED (w); | |
| 4759 } | |
| 4760 if (marker_position (w->start[CURRENT_DISP]) == BUF_BEGV (b)) | |
| 4761 { | |
| 563 | 4762 maybe_signal_error_1 (Qbeginning_of_buffer, Qnil, Qwindow, errb); |
| 428 | 4763 return; |
| 4764 } | |
| 4765 else | |
| 4766 { | |
| 4767 int vtarget; | |
| 4768 int movement = next_screen_context_lines - 1; | |
| 665 | 4769 Charbpos old_startp = marker_position (w->start[CURRENT_DISP]); |
| 4770 Charbpos bottom = vmotion (w, old_startp, movement, &vtarget); | |
| 4771 Charbpos startp = | |
| 428 | 4772 start_with_point_on_display_line (w, bottom, |
| 4773 -1 - (movement - vtarget)); | |
| 4774 | |
| 4775 if (startp >= old_startp) | |
| 4776 startp = vmotion (w, old_startp, -1, NULL); | |
| 4777 | |
| 4778 set_marker_restricted (w->start[CURRENT_DISP], make_int (startp), | |
| 4779 w->buffer); | |
| 4780 w->force_start = 1; | |
| 4781 w->start_at_line_beg = beginning_of_line_p (b, startp); | |
| 4782 MARK_WINDOWS_CHANGED (w); | |
| 4783 | |
| 1708 | 4784 if (!point_would_be_visible (w, startp, XINT (point), 0)) |
| 428 | 4785 { |
| 665 | 4786 Charbpos new_point = start_of_last_line (w, startp); |
| 428 | 4787 |
| 844 | 4788 Fset_window_point (wrap_window (w), make_int (new_point)); |
| 428 | 4789 } |
| 4790 } | |
| 4791 } | |
| 4792 } | |
| 4793 | |
| 4794 DEFUN ("scroll-up", Fscroll_up, 0, 1, "_P", /* | |
| 444 | 4795 Scroll text of current window up COUNT lines; or near full screen if no arg. |
| 428 | 4796 A near full screen is `next-screen-context-lines' less than a full screen. |
| 444 | 4797 Negative COUNT means scroll downward. |
| 428 | 4798 When calling from a program, supply an integer as argument or nil. |
| 4799 On attempt to scroll past end of buffer, `end-of-buffer' is signaled. | |
| 4800 On attempt to scroll past beginning of buffer, `beginning-of-buffer' is | |
| 4801 signaled. | |
| 462 | 4802 |
| 4803 The characters that are moved over may be added to the current selection | |
| 4804 \(i.e. active region) if the Shift key is held down, a motion key is used | |
| 4805 to invoke this command, and `shifted-motion-keys-select-region' is t; see | |
| 4806 the documentation for this variable for more details. | |
| 428 | 4807 */ |
| 444 | 4808 (count)) |
| 4809 { | |
| 4810 window_scroll (Fselected_window (Qnil), count, 1, ERROR_ME); | |
| 428 | 4811 return Qnil; |
| 4812 } | |
| 4813 | |
| 4814 DEFUN ("scroll-down", Fscroll_down, 0, 1, "_P", /* | |
| 444 | 4815 Scroll text of current window down COUNT lines; or near full screen if no arg. |
| 428 | 4816 A near full screen is `next-screen-context-lines' less than a full screen. |
| 444 | 4817 Negative COUNT means scroll upward. |
| 428 | 4818 When calling from a program, supply a number as argument or nil. |
| 4819 On attempt to scroll past end of buffer, `end-of-buffer' is signaled. | |
| 4820 On attempt to scroll past beginning of buffer, `beginning-of-buffer' is | |
| 4821 signaled. | |
| 462 | 4822 |
| 4823 The characters that are moved over may be added to the current selection | |
| 4824 \(i.e. active region) if the Shift key is held down, a motion key is used | |
| 4825 to invoke this command, and `shifted-motion-keys-select-region' is t; see | |
| 4826 the documentation for this variable for more details. | |
| 428 | 4827 */ |
| 444 | 4828 (count)) |
| 4829 { | |
| 4830 window_scroll (Fselected_window (Qnil), count, -1, ERROR_ME); | |
| 428 | 4831 return Qnil; |
| 4832 } | |
| 4833 | |
| 4834 DEFUN ("other-window-for-scrolling", Fother_window_for_scrolling, 0, 0, 0, /* | |
| 4835 Return the other window for "other window scroll" commands. | |
| 4836 If in the minibuffer, `minibuffer-scroll-window' if non-nil | |
| 4837 specifies the window. | |
| 4838 If `other-window-scroll-buffer' is non-nil, a window | |
| 4839 showing that buffer is used. | |
| 4840 */ | |
| 4841 ()) | |
| 4842 { | |
| 4843 Lisp_Object window; | |
| 4844 Lisp_Object selected_window = Fselected_window (Qnil); | |
| 4845 | |
| 4846 if (MINI_WINDOW_P (XWINDOW (selected_window)) | |
| 4847 && !NILP (Vminibuffer_scroll_window)) | |
| 4848 window = Vminibuffer_scroll_window; | |
| 4849 /* If buffer is specified, scroll that buffer. */ | |
| 4850 else if (!NILP (Vother_window_scroll_buffer)) | |
| 4851 { | |
| 4852 window = Fget_buffer_window (Vother_window_scroll_buffer, Qnil, Qnil); | |
| 4853 if (NILP (window)) | |
| 4854 window = display_buffer (Vother_window_scroll_buffer, Qt, Qnil); | |
| 4855 } | |
| 4856 else | |
| 4857 { | |
| 4858 /* Nothing specified; look for a neighboring window on the same | |
| 4859 frame. */ | |
| 4860 window = Fnext_window (selected_window, Qnil, Qnil, Qnil); | |
| 4861 | |
| 4862 if (EQ (window, selected_window)) | |
| 4863 /* That didn't get us anywhere; look for a window on another | |
| 4864 visible frame. */ | |
| 4865 do | |
| 4866 window = Fnext_window (window, Qnil, Qt, Qnil); | |
| 4867 while (! FRAME_VISIBLE_P (XFRAME (WINDOW_FRAME (XWINDOW (window)))) | |
| 4868 && ! EQ (window, selected_window)); | |
| 4869 } | |
| 4870 | |
| 4871 CHECK_LIVE_WINDOW (window); | |
| 4872 | |
| 4873 if (EQ (window, selected_window)) | |
| 563 | 4874 invalid_operation ("There is no other window", Qunbound); |
| 428 | 4875 |
| 4876 return window; | |
| 4877 } | |
| 4878 | |
| 4879 DEFUN ("scroll-other-window", Fscroll_other_window, 0, 1, "_P", /* | |
| 444 | 4880 Scroll next window upward COUNT lines; or near full frame if no arg. |
| 428 | 4881 The next window is the one below the current one; or the one at the top |
| 444 | 4882 if the current one is at the bottom. Negative COUNT means scroll downward. |
| 428 | 4883 When calling from a program, supply a number as argument or nil. |
| 4884 | |
| 4885 If in the minibuffer, `minibuffer-scroll-window' if non-nil | |
| 4886 specifies the window to scroll. | |
| 4887 If `other-window-scroll-buffer' is non-nil, scroll the window | |
| 4888 showing that buffer, popping the buffer up if necessary. | |
| 4889 */ | |
| 444 | 4890 (count)) |
| 4891 { | |
| 4892 window_scroll (Fother_window_for_scrolling (), count, 1, ERROR_ME); | |
| 428 | 4893 return Qnil; |
| 4894 } | |
| 4895 | |
| 4896 DEFUN ("scroll-left", Fscroll_left, 0, 1, "_P", /* | |
| 444 | 4897 Scroll selected window display COUNT columns left. |
| 4898 Default for COUNT is window width minus 2. | |
| 462 | 4899 |
| 4900 The characters that are moved over may be added to the current selection | |
| 4901 \(i.e. active region) if the Shift key is held down, a motion key is used | |
| 4902 to invoke this command, and `shifted-motion-keys-select-region' is t; see | |
| 4903 the documentation for this variable for more details. | |
| 428 | 4904 */ |
| 444 | 4905 (count)) |
| 428 | 4906 { |
| 4907 Lisp_Object window = Fselected_window (Qnil); | |
| 4908 struct window *w = XWINDOW (window); | |
| 444 | 4909 int n = (NILP (count) ? |
| 4910 window_char_width (w, 0) - 2 : | |
| 4911 XINT (Fprefix_numeric_value (count))); | |
| 4912 | |
| 4913 return Fset_window_hscroll (window, make_int (w->hscroll + n)); | |
| 428 | 4914 } |
| 4915 | |
| 4916 DEFUN ("scroll-right", Fscroll_right, 0, 1, "_P", /* | |
| 444 | 4917 Scroll selected window display COUNT columns right. |
| 4918 Default for COUNT is window width minus 2. | |
| 462 | 4919 |
| 4920 The characters that are moved over may be added to the current selection | |
| 4921 \(i.e. active region) if the Shift key is held down, a motion key is used | |
| 4922 to invoke this command, and `shifted-motion-keys-select-region' is t; see | |
| 4923 the documentation for this variable for more details. | |
| 428 | 4924 */ |
| 444 | 4925 (count)) |
| 428 | 4926 { |
| 4927 Lisp_Object window = Fselected_window (Qnil); | |
| 4928 struct window *w = XWINDOW (window); | |
| 444 | 4929 int n = (NILP (count) ? |
| 4930 window_char_width (w, 0) - 2 : | |
| 4931 XINT (Fprefix_numeric_value (count))); | |
| 4932 | |
| 4933 return Fset_window_hscroll (window, make_int (w->hscroll - n)); | |
| 428 | 4934 } |
| 4935 | |
| 4936 DEFUN ("center-to-window-line", Fcenter_to_window_line, 0, 2, "_P", /* | |
| 4937 Center point in WINDOW. With N, put point on line N. | |
| 4938 The desired position of point is always relative to the window. | |
| 4939 If WINDOW is nil, the selected window is used. | |
| 4940 */ | |
| 4941 (n, window)) | |
| 4942 { | |
| 4943 struct window *w = decode_window (window); | |
| 4944 struct buffer *b = XBUFFER (w->buffer); | |
| 665 | 4945 Charbpos opoint = BUF_PT (b); |
| 4946 Charbpos startp; | |
| 428 | 4947 |
| 4948 if (NILP (n)) | |
| 4949 startp = start_with_line_at_pixpos (w, opoint, window_half_pixpos (w)); | |
| 4950 else | |
| 4951 { | |
| 4952 n = Fprefix_numeric_value (n); | |
| 4953 CHECK_INT (n); | |
| 4954 startp = start_with_point_on_display_line (w, opoint, XINT (n)); | |
| 4955 } | |
| 4956 | |
| 4957 Fset_marker (w->start[CURRENT_DISP], make_int (startp), w->buffer); | |
| 4958 | |
| 4959 w->start_at_line_beg = beginning_of_line_p (b, startp); | |
| 4960 w->force_start = 1; | |
| 4961 MARK_WINDOWS_CHANGED (w); | |
| 4962 return Qnil; | |
| 4963 } | |
| 4964 | |
| 4965 DEFUN ("move-to-window-line", Fmove_to_window_line, 1, 2, "_P", /* | |
| 4966 Position point relative to WINDOW. | |
| 4967 With no argument, position text at center of window. | |
| 4968 An argument specifies window line; zero means top of window, | |
| 4969 negative means relative to bottom of window. | |
| 4970 If WINDOW is nil, the selected window is used. | |
| 4971 */ | |
| 4972 (arg, window)) | |
| 4973 { | |
| 4974 struct window *w; | |
| 4975 struct buffer *b; | |
| 4976 int height; | |
| 665 | 4977 Charbpos start, new_point; |
| 428 | 4978 int selected; |
| 4979 | |
| 4980 /* Don't use decode_window() because we need the new value of | |
| 4981 WINDOW. */ | |
| 4982 if (NILP (window)) | |
| 4983 window = Fselected_window (Qnil); | |
| 4984 else | |
| 4985 CHECK_LIVE_WINDOW (window); | |
| 4986 w = XWINDOW (window); | |
| 4987 b = XBUFFER (w->buffer); | |
| 4988 | |
| 4989 height = window_displayed_height (w); | |
| 4990 selected = EQ (window, Fselected_window (w->frame)); | |
| 4991 | |
| 4992 if (NILP (arg)) | |
| 4993 { | |
| 4994 int retval; | |
| 4995 | |
| 4996 if (XINT (w->last_modified[CURRENT_DISP]) >= BUF_MODIFF (b) | |
| 4997 && XINT (w->last_facechange[CURRENT_DISP]) >= BUF_FACECHANGE (b)) | |
| 4998 { | |
| 4999 new_point = point_at_center (w, CURRENT_DISP, 0, 0); | |
| 5000 | |
| 844 | 5001 /* #### Here we are checking the selected window of the frame |
| 5002 instead of the selected window period. Elsewhere we check | |
| 5003 the selected window of the device. What a mess! */ | |
| 428 | 5004 if (selected) |
| 5005 BUF_SET_PT (b, new_point); | |
| 5006 else | |
| 5007 Fset_window_point (window, make_int (new_point)); | |
| 5008 | |
| 5009 retval = line_at_center (w, CURRENT_DISP, 0, 0); | |
| 5010 } | |
| 5011 else | |
| 5012 { | |
| 5013 start = marker_position (w->start[CURRENT_DISP]); | |
| 5014 if (start < BUF_BEGV (b)) | |
| 5015 start = BUF_BEGV (b); | |
| 5016 else if (start > BUF_ZV (b)) | |
| 5017 start = BUF_ZV (b); | |
| 5018 | |
| 5019 if (selected) | |
| 5020 new_point = BUF_PT (b); | |
| 5021 else | |
| 5022 new_point = marker_position (w->pointm[CURRENT_DISP]); | |
| 5023 | |
| 5024 new_point = point_at_center (w, CMOTION_DISP, start, BUF_PT (b)); | |
| 5025 | |
| 5026 if (selected) | |
| 5027 BUF_SET_PT (b, new_point); | |
| 5028 else | |
| 5029 Fset_window_point (window, make_int (new_point)); | |
| 5030 | |
| 5031 retval = line_at_center (w, CMOTION_DISP, start, BUF_PT (b)); | |
| 5032 } | |
| 5033 | |
| 5034 return make_int (retval); | |
| 5035 } | |
| 5036 else | |
| 5037 { | |
| 5038 /* #### Is this going to work right when at eob? */ | |
| 5039 arg = Fprefix_numeric_value (arg); | |
| 5040 if (XINT (arg) < 0) | |
| 793 | 5041 arg = make_int (XINT (arg) + height); |
| 428 | 5042 } |
| 5043 | |
| 5044 start = marker_position (w->start[CURRENT_DISP]); | |
| 5045 if (start < BUF_BEGV (b) || start > BUF_ZV (b)) | |
| 5046 { | |
| 5047 if (selected) | |
| 5048 new_point = BUF_PT (b); | |
| 5049 else | |
| 5050 new_point = marker_position (w->pointm[CURRENT_DISP]); | |
| 5051 | |
| 5052 new_point = vmotion (XWINDOW (window), new_point, -height / 2, 0); | |
| 5053 | |
| 5054 if (selected) | |
| 5055 BUF_SET_PT (b, new_point); | |
| 5056 else | |
| 5057 Fset_window_point (window, make_int (new_point)); | |
| 5058 | |
| 5059 Fset_marker (w->start[CURRENT_DISP], make_int (new_point), | |
| 5060 w->buffer); | |
| 5061 w->start_at_line_beg = beginning_of_line_p (b, new_point); | |
| 5062 w->force_start = 1; | |
| 5063 } | |
| 5064 else | |
| 5065 { | |
| 5066 if (selected) | |
| 5067 BUF_SET_PT (b, start); | |
| 5068 else | |
| 5069 Fset_window_point (window, make_int (start)); | |
| 5070 } | |
| 5071 | |
| 5072 if (selected) | |
| 5073 return Fvertical_motion (arg, window, Qnil); | |
| 5074 else | |
| 5075 { | |
| 5076 int vpos; | |
| 5077 new_point = vmotion (XWINDOW (window), | |
| 5078 marker_position (w->pointm[CURRENT_DISP]), | |
| 5079 XINT (arg), &vpos); | |
| 5080 Fset_window_point (window, make_int (new_point)); | |
| 5081 return make_int (vpos); | |
| 5082 } | |
| 5083 } | |
| 5084 | |
| 5085 | |
| 5086 static int | |
| 5087 map_windows_1 (Lisp_Object window, | |
| 5088 int (*mapfun) (struct window *w, void *closure), | |
| 5089 void *closure) | |
| 5090 { | |
| 5091 for (; !NILP (window); window = XWINDOW (window)->next) | |
| 5092 { | |
| 5093 int retval; | |
| 5094 struct window *w = XWINDOW (window); | |
| 5095 | |
| 5096 if (!NILP (w->vchild)) | |
| 5097 retval = map_windows_1 (w->vchild, mapfun, closure); | |
| 5098 else if (!NILP (w->hchild)) | |
| 5099 retval = map_windows_1 (w->hchild, mapfun, closure); | |
| 5100 else | |
| 5101 retval = (mapfun) (w, closure); | |
| 5102 | |
| 5103 if (retval) | |
| 5104 return retval; | |
| 5105 } | |
| 5106 | |
| 5107 return 0; | |
| 5108 } | |
| 5109 | |
| 5110 /* Map MAPFUN over the windows in F. CLOSURE is passed to each | |
| 5111 invocation of MAPFUN. If any invocation of MAPFUN returns | |
| 5112 non-zero, the mapping is halted. Otherwise, map_windows() maps | |
| 5113 over all windows in F. | |
| 5114 | |
| 800 | 5115 If F is null, map over all frames on all devices and consoles. |
| 5116 | |
| 428 | 5117 If MAPFUN creates or deletes windows, the behavior is undefined. */ |
| 5118 | |
| 5119 int | |
| 5120 map_windows (struct frame *f, int (*mapfun) (struct window *w, void *closure), | |
| 5121 void *closure) | |
| 5122 { | |
| 5123 if (f) | |
| 5124 return map_windows_1 (FRAME_ROOT_WINDOW (f), mapfun, closure); | |
| 5125 else | |
| 5126 { | |
| 5127 Lisp_Object frmcons, devcons, concons; | |
| 5128 | |
| 5129 FRAME_LOOP_NO_BREAK(frmcons, devcons, concons) | |
| 5130 { | |
| 5131 int v = map_windows_1 (FRAME_ROOT_WINDOW (XFRAME (XCAR (frmcons))), | |
| 5132 mapfun, closure); | |
| 5133 if (v) | |
| 5134 return v; | |
| 5135 } | |
| 5136 } | |
| 5137 | |
| 5138 return 0; | |
| 5139 } | |
| 5140 | |
| 5141 | |
| 5142 static void | |
| 2286 | 5143 modeline_shadow_thickness_changed (Lisp_Object UNUSED (specifier), |
| 5144 struct window *w, | |
| 5145 Lisp_Object UNUSED (oldval)) | |
| 428 | 5146 { |
| 5147 w->shadow_thickness_changed = 1; | |
| 5148 MARK_WINDOWS_CHANGED (w); | |
| 5149 } | |
| 5150 | |
| 5151 static void | |
| 2286 | 5152 vertical_divider_changed_in_window (Lisp_Object UNUSED (specifier), |
| 428 | 5153 struct window *w, |
| 2286 | 5154 Lisp_Object UNUSED (oldval)) |
| 428 | 5155 { |
| 5156 MARK_WINDOWS_CHANGED (w); | |
| 5157 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (XFRAME (WINDOW_FRAME (w))); | |
| 5158 } | |
| 5159 | |
| 5160 /* also used in scrollbar.c */ | |
| 5161 void | |
| 2286 | 5162 some_window_value_changed (Lisp_Object UNUSED (specifier), |
| 5163 struct window *w, | |
| 5164 Lisp_Object UNUSED (oldval)) | |
| 428 | 5165 { |
| 5166 MARK_WINDOWS_CHANGED (w); | |
| 5167 } | |
| 5168 | |
| 5169 #ifdef MEMORY_USAGE_STATS | |
| 5170 | |
|
5170
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5171 struct window_mirror_stats |
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5172 { |
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5173 struct usage_stats u; |
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5174 /* Ancilliary non-lisp */ |
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5175 Bytecount redisplay_structs; |
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5176 #ifdef HAVE_SCROLLBARS |
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5177 /* Ancilliary Lisp */ |
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5178 Bytecount scrollbar; |
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5179 #endif |
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5180 }; |
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5181 |
| 428 | 5182 struct window_stats |
| 5183 { | |
|
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5184 struct usage_stats u; |
|
5170
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5185 /* Ancillary non-Lisp */ |
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5186 Bytecount line_start; |
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5187 /* The next two: ancillary non-Lisp under old-GC, ancillary Lisp under |
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5188 NEW_GC */ |
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5189 Bytecount face; |
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5190 Bytecount glyph; |
|
5170
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5191 /* The next two are copied out of the window mirror, which is an ancillary |
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5192 Lisp structure; the first is non-Lisp, the second Lisp, but from our |
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5193 perspective, they are both counted as Lisp */ |
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5194 Bytecount redisplay_structs; |
| 428 | 5195 #ifdef HAVE_SCROLLBARS |
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5196 Bytecount scrollbar; |
| 428 | 5197 #endif |
|
5170
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5198 /* Remaining memory associated with window mirror (ancillary Lisp) */ |
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5199 Bytecount window_mirror; |
| 428 | 5200 }; |
| 5201 | |
| 5202 static void | |
| 5203 compute_window_mirror_usage (struct window_mirror *mir, | |
|
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5204 struct window_mirror_stats *stats) |
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5205 { |
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5206 stats->redisplay_structs = |
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5207 compute_display_line_dynarr_usage (mir->current_display_lines, &stats->u) |
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5208 + |
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5209 compute_display_line_dynarr_usage (mir->desired_display_lines, &stats->u); |
| 428 | 5210 #ifdef HAVE_SCROLLBARS |
|
5170
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5211 stats->scrollbar = |
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5212 compute_all_scrollbar_instance_usage (mir->scrollbar_vertical_instance) + |
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5213 compute_all_scrollbar_instance_usage (mir->scrollbar_horizontal_instance); |
| 428 | 5214 #endif /* HAVE_SCROLLBARS */ |
|
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5215 } |
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5216 |
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5217 |
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5218 static void |
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5219 window_mirror_memory_usage (Lisp_Object window_mirror, |
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5220 struct generic_usage_stats *gustats) |
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5221 { |
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5222 struct window_mirror_stats *stats = (struct window_mirror_stats *) gustats; |
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5223 |
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5224 compute_window_mirror_usage (XWINDOW_MIRROR (window_mirror), stats); |
| 428 | 5225 } |
| 5226 | |
| 5227 static void | |
| 5228 compute_window_usage (struct window *w, struct window_stats *stats, | |
|
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5229 struct usage_stats *ustats) |
| 428 | 5230 { |
|
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|
5231 stats->line_start = |
|
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|
5232 compute_line_start_cache_dynarr_usage (w->line_start_cache, ustats); |
|
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5233 stats->face = compute_face_cachel_usage (w->face_cachels, |
|
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|
5234 IF_OLD_GC (ustats)); |
|
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|
5235 stats->glyph = compute_glyph_cachel_usage (w->glyph_cachels, |
|
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|
5236 IF_OLD_GC (ustats)); |
|
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|
5237 { |
|
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|
5238 struct window_mirror *wm; |
|
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|
5239 |
|
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|
5240 wm = find_window_mirror_maybe (w); |
|
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|
5241 if (wm) |
|
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|
5242 { |
|
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|
5243 struct generic_usage_stats gustats; |
|
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|
5244 struct window_mirror_stats *wmstats; |
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|
5245 Bytecount total; |
|
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|
5246 total = lisp_object_memory_usage_full (wrap_window_mirror (wm), |
|
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|
5247 NULL, NULL, NULL, &gustats); |
|
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5248 wmstats = (struct window_mirror_stats *) &gustats; |
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5249 stats->redisplay_structs = wmstats->redisplay_structs; |
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5250 total -= stats->redisplay_structs; |
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5251 #ifdef HAVE_SCROLLBARS |
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5252 stats->scrollbar = wmstats->scrollbar; |
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5253 total -= stats->scrollbar; |
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5254 #endif |
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5255 stats->window_mirror = total; |
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5256 } |
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|
5257 } |
| 428 | 5258 } |
| 5259 | |
|
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|
5260 static void |
|
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|
5261 window_memory_usage (Lisp_Object window, struct generic_usage_stats *gustats) |
| 428 | 5262 { |
|
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5263 struct window_stats *stats = (struct window_stats *) gustats; |
|
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5264 |
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|
5265 compute_window_usage (XWINDOW (window), stats, &stats->u); |
| 428 | 5266 } |
| 5267 | |
| 5268 #endif /* MEMORY_USAGE_STATS */ | |
|
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|
5269 |
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|
5270 |
| 428 | 5271 |
| 5272 /* Mark all subwindows of a window as deleted. The argument | |
| 5273 W is actually the subwindow tree of the window in question. */ | |
| 5274 | |
| 5275 void | |
| 5276 delete_all_subwindows (struct window *w) | |
| 5277 { | |
| 5278 if (!NILP (w->next)) delete_all_subwindows (XWINDOW (w->next)); | |
| 5279 if (!NILP (w->vchild)) delete_all_subwindows (XWINDOW (w->vchild)); | |
| 5280 if (!NILP (w->hchild)) delete_all_subwindows (XWINDOW (w->hchild)); | |
| 5281 | |
| 5282 mark_window_as_deleted (w); | |
| 5283 } | |
| 5284 | |
| 1149 | 5285 |
| 2289 | 5286 static int |
| 5287 get_current_pixel_pos (Lisp_Object window, Lisp_Object pos, | |
| 5288 struct window **w, | |
| 5289 struct rune **rb, struct display_line **dl) | |
| 428 | 5290 { |
| 2289 | 5291 display_line_dynarr *dla; |
| 5292 struct display_block *db = NULL; | |
| 5293 int x, y; | |
| 5294 | |
| 5295 *rb = NULL; | |
| 5296 *dl = NULL; | |
| 5297 *w = decode_window (window); | |
| 5298 dla = window_display_lines (*w, CURRENT_DISP); | |
| 5299 x = (*w)->last_point_x[CURRENT_DISP]; | |
| 5300 y = (*w)->last_point_y[CURRENT_DISP]; | |
| 5301 if (MINI_WINDOW_P (*w)) | |
| 5302 return 0; | |
| 428 | 5303 |
| 5304 if (y<0 || x<0 || y >= Dynarr_length (dla) || !NILP (pos)) | |
| 5305 { | |
| 5306 int first_line, i; | |
| 665 | 5307 Charbpos point; |
| 428 | 5308 |
| 5309 if (NILP (pos)) | |
| 5310 pos = Fwindow_point (window); | |
| 438 | 5311 |
| 428 | 5312 CHECK_INT (pos); |
| 5313 point = XINT (pos); | |
| 5314 | |
| 4967 | 5315 if (Dynarr_length (dla) && Dynarr_begin (dla)->modeline) |
| 428 | 5316 first_line = 1; |
| 5317 else | |
| 5318 first_line = 0; | |
| 5319 | |
| 5320 for (i = first_line; i < Dynarr_length (dla); i++) | |
| 5321 { | |
| 2289 | 5322 *dl = Dynarr_atp (dla, i); |
| 428 | 5323 /* find the vertical location first */ |
| 2289 | 5324 if (point >= (*dl)->charpos && point <= (*dl)->end_charpos) |
| 428 | 5325 { |
| 2289 | 5326 db = get_display_block_from_line (*dl, TEXT); |
| 428 | 5327 for (i = 0; i < Dynarr_length (db->runes); i++) |
| 5328 { | |
| 2289 | 5329 *rb = Dynarr_atp (db->runes, i); |
| 2290 | 5330 if (point <= (*rb)->charpos) |
| 826 | 5331 goto found_charpos; |
| 428 | 5332 } |
| 2289 | 5333 return 0; |
| 428 | 5334 } |
| 5335 } | |
| 2289 | 5336 return 0; |
| 826 | 5337 found_charpos: |
| 428 | 5338 ; |
| 5339 } | |
| 5340 else | |
| 5341 { | |
| 442 | 5342 /* optimized case */ |
| 2289 | 5343 *dl = Dynarr_atp (dla, y); |
| 5344 db = get_display_block_from_line (*dl, TEXT); | |
| 428 | 5345 |
| 5346 if (x >= Dynarr_length (db->runes)) | |
| 2289 | 5347 return 0; |
| 5348 | |
| 5349 *rb = Dynarr_atp (db->runes, x); | |
| 428 | 5350 } |
| 5351 | |
| 2289 | 5352 return 1; |
| 5353 } | |
| 5354 | |
| 5355 DEFUN ("current-pixel-column", Fcurrent_pixel_column, 0, 2, 0, /* | |
| 5356 Return the horizontal pixel position of point POS in window. | |
| 5357 Beginning of line is column 0. If WINDOW is nil, the current window | |
| 5358 is assumed. If POS is nil, point is assumed. Note that POS must be | |
| 5359 visible for a non-nil result to be returned. This is calculated using | |
| 5360 the redisplay display tables; because of this, the returned value will | |
| 5361 only be correct if the redisplay tables are up-to-date. Use | |
| 5362 \"(sit-for 0)\" to insure that they are; however, if WINDOW is part of | |
| 5363 a new frame, use the following instead: | |
| 5364 (while (not (frame-visible-p frame)) (sleep-for .5)) | |
| 5365 */ | |
| 5366 (window, pos)) | |
| 5367 { | |
| 5368 struct window* w; | |
| 5369 struct display_line *dl; | |
| 5370 struct rune* rb; | |
| 5371 | |
| 5372 if (!get_current_pixel_pos(window, pos, &w, &rb, &dl)) | |
| 5373 return Qnil; | |
| 5374 | |
| 428 | 5375 return make_int (rb->xpos - WINDOW_LEFT (w)); |
| 5376 } | |
| 5377 | |
| 2289 | 5378 DEFUN ("current-pixel-row", Fcurrent_pixel_row, 0, 2, 0, /* |
| 5379 Return the vertical pixel position of point POS in window. Top of | |
| 5380 window is row 0. If WINDOW is nil, the current window is assumed. If | |
| 5381 POS is nil, point is assumed. Note that POS must be visible for a | |
| 5382 non-nil result to be returned. This is calculated using the redisplay | |
| 5383 display tables; because of this, the returned value will only be | |
| 5384 correct if the redisplay tables are up-to-date. Use \"(sit-for 0)\" | |
| 5385 to insure that they are; however, if WINDOW is part of a new frame, | |
| 5386 use the following instead: | |
| 5387 (while (not (frame-visible-p frame)) (sleep-for .5)) | |
| 5388 */ | |
| 5389 (window, pos)) | |
| 5390 { | |
| 5391 struct window* w; | |
| 5392 struct display_line *dl; | |
| 5393 struct rune* rb; | |
| 5394 | |
| 5395 if (!get_current_pixel_pos(window, pos, &w, &rb, &dl)) | |
| 5396 return Qnil; | |
| 5397 | |
| 5398 return make_int (dl->ypos - dl->ascent - WINDOW_TOP (w)); | |
| 5399 } | |
| 5400 | |
| 428 | 5401 |
| 5402 #ifdef DEBUG_XEMACS | |
| 5403 /* This is short and simple in elisp, but... it was written to debug | |
| 5404 problems purely on the C side. That is where we need to call it so | |
| 5405 here it is. */ | |
| 5406 static void | |
| 5407 debug_print_window (Lisp_Object window, int level) | |
| 5408 { | |
| 5409 int i; | |
| 5410 Lisp_Object child = Fwindow_first_vchild (window); | |
| 5411 | |
| 5412 if (NILP (child)) | |
| 5413 child = Fwindow_first_hchild (window); | |
| 5414 | |
| 5415 for (i = level; i > 0; i--) | |
| 442 | 5416 stderr_out ("\t"); |
| 5417 | |
| 5418 stderr_out ("#<window"); | |
| 428 | 5419 { |
| 5420 Lisp_Object buffer = XWINDOW (window)->buffer; | |
| 5421 if (!NILP (buffer) && BUFFERP (buffer)) | |
| 442 | 5422 stderr_out (" on %s", XSTRING_DATA (XBUFFER (buffer)->name)); |
| 428 | 5423 } |
|
5146
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5142
diff
changeset
|
5424 stderr_out (" 0x%x>", LISP_OBJECT_UID (window)); |
| 428 | 5425 |
| 5426 while (!NILP (child)) | |
| 5427 { | |
| 5428 debug_print_window (child, level + 1); | |
| 5429 child = Fwindow_next_child (child); | |
| 5430 } | |
| 5431 } | |
| 5432 | |
| 5433 void debug_print_windows (struct frame *f); | |
| 5434 void | |
| 5435 debug_print_windows (struct frame *f) | |
| 5436 { | |
| 5437 debug_print_window (f->root_window, 0); | |
| 5438 putc ('\n', stderr); | |
| 5439 } | |
| 5440 #endif /* DEBUG_XEMACS */ | |
| 5441 | |
| 5442 | |
| 5443 /************************************************************************/ | |
| 5444 /* initialization */ | |
| 5445 /************************************************************************/ | |
| 5446 | |
| 5447 void | |
|
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|
5448 window_objects_create (void) |
|
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|
5449 { |
|
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|
5450 #ifdef MEMORY_USAGE_STATS |
|
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|
5451 OBJECT_HAS_METHOD (window, memory_usage); |
|
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|
5452 OBJECT_HAS_METHOD (window_mirror, memory_usage); |
|
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|
5453 #endif |
|
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|
5454 } |
|
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|
5455 |
|
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|
5456 void |
| 428 | 5457 syms_of_window (void) |
| 5458 { | |
|
5117
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|
5459 INIT_LISP_OBJECT (window); |
|
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|
5460 INIT_LISP_OBJECT (window_mirror); |
| 3092 | 5461 #ifdef NEW_GC |
|
5118
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|
5462 INIT_LISP_OBJECT (face_cachel); |
|
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|
5463 INIT_LISP_OBJECT (face_cachel_dynarr); |
|
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|
5464 INIT_LISP_OBJECT (glyph_cachel); |
|
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|
5465 INIT_LISP_OBJECT (glyph_cachel_dynarr); |
| 3092 | 5466 #endif /* NEW_GC */ |
| 442 | 5467 |
| 563 | 5468 DEFSYMBOL (Qwindowp); |
| 5469 DEFSYMBOL (Qwindow_live_p); | |
| 5470 DEFSYMBOL (Qdisplay_buffer); | |
| 428 | 5471 |
| 5472 #ifdef MEMORY_USAGE_STATS | |
| 563 | 5473 DEFSYMBOL (Qface_cache); |
| 5474 DEFSYMBOL (Qglyph_cache); | |
| 5475 DEFSYMBOL (Qline_start_cache); | |
| 428 | 5476 #ifdef HAVE_SCROLLBARS |
| 563 | 5477 DEFSYMBOL (Qscrollbar_instances); |
| 428 | 5478 #endif |
|
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|
5479 DEFSYMBOL (Qredisplay_structs); |
| 428 | 5480 #endif |
| 5481 | |
| 707 | 5482 DEFSYMBOL (Qtruncate_partial_width_windows); |
| 1149 | 5483 DEFSYMBOL (Qcurrent_window_configuration); |
| 5484 DEFSYMBOL (Qset_window_configuration); | |
| 707 | 5485 |
| 428 | 5486 DEFSUBR (Fselected_window); |
| 5487 DEFSUBR (Flast_nonminibuf_window); | |
| 5488 DEFSUBR (Fminibuffer_window); | |
| 5489 DEFSUBR (Fwindow_minibuffer_p); | |
| 5490 DEFSUBR (Fwindowp); | |
| 5491 DEFSUBR (Fwindow_live_p); | |
| 5492 DEFSUBR (Fwindow_first_hchild); | |
| 5493 DEFSUBR (Fwindow_first_vchild); | |
| 5494 DEFSUBR (Fwindow_next_child); | |
| 5495 DEFSUBR (Fwindow_previous_child); | |
| 5496 DEFSUBR (Fwindow_parent); | |
| 5497 DEFSUBR (Fwindow_lowest_p); | |
| 5498 DEFSUBR (Fwindow_truncated_p); | |
| 5499 DEFSUBR (Fwindow_highest_p); | |
| 5500 DEFSUBR (Fwindow_leftmost_p); | |
| 5501 DEFSUBR (Fwindow_rightmost_p); | |
| 5502 DEFSUBR (Fpos_visible_in_window_p); | |
| 5503 DEFSUBR (Fwindow_buffer); | |
| 5504 DEFSUBR (Fwindow_frame); | |
| 5505 DEFSUBR (Fwindow_height); | |
| 5506 DEFSUBR (Fwindow_displayed_height); | |
| 5507 DEFSUBR (Fwindow_width); | |
| 442 | 5508 DEFSUBR (Fwindow_full_width); |
| 428 | 5509 DEFSUBR (Fwindow_pixel_height); |
| 5510 DEFSUBR (Fwindow_pixel_width); | |
| 442 | 5511 DEFSUBR (Fwindow_text_area_height); |
| 428 | 5512 DEFSUBR (Fwindow_text_area_pixel_height); |
| 5513 DEFSUBR (Fwindow_displayed_text_pixel_height); | |
| 5514 DEFSUBR (Fwindow_text_area_pixel_width); | |
| 5515 DEFSUBR (Fwindow_hscroll); | |
| 438 | 5516 DEFSUBR (Fset_window_hscroll); |
| 428 | 5517 DEFSUBR (Fmodeline_hscroll); |
| 5518 DEFSUBR (Fset_modeline_hscroll); | |
| 5519 DEFSUBR (Fwindow_pixel_edges); | |
| 5520 DEFSUBR (Fwindow_text_area_pixel_edges); | |
| 5521 DEFSUBR (Fwindow_point); | |
| 5522 DEFSUBR (Fwindow_start); | |
| 5523 DEFSUBR (Fwindow_end); | |
| 442 | 5524 DEFSUBR (Fwindow_last_line_visible_height); |
| 428 | 5525 DEFSUBR (Fset_window_point); |
| 5526 DEFSUBR (Fset_window_start); | |
| 5527 DEFSUBR (Fwindow_dedicated_p); | |
| 5528 DEFSUBR (Fset_window_dedicated_p); | |
| 5529 DEFSUBR (Fnext_window); | |
| 5530 DEFSUBR (Fprevious_window); | |
| 5531 DEFSUBR (Fnext_vertical_window); | |
| 5532 DEFSUBR (Fother_window); | |
| 5533 DEFSUBR (Fget_lru_window); | |
| 5534 DEFSUBR (Fget_largest_window); | |
| 5535 DEFSUBR (Fget_buffer_window); | |
| 5536 DEFSUBR (Fwindow_left_margin_pixel_width); | |
| 5537 DEFSUBR (Fwindow_right_margin_pixel_width); | |
| 5538 DEFSUBR (Fdelete_other_windows); | |
| 5539 DEFSUBR (Fdelete_windows_on); | |
| 5540 DEFSUBR (Freplace_buffer_in_windows); | |
| 5541 DEFSUBR (Fdelete_window); | |
| 5542 DEFSUBR (Fset_window_buffer); | |
| 5543 DEFSUBR (Fselect_window); | |
| 5544 DEFSUBR (Fsplit_window); | |
| 5545 DEFSUBR (Fenlarge_window); | |
| 5546 DEFSUBR (Fenlarge_window_pixels); | |
| 5547 DEFSUBR (Fshrink_window); | |
| 5548 DEFSUBR (Fshrink_window_pixels); | |
| 5549 DEFSUBR (Fscroll_up); | |
| 5550 DEFSUBR (Fscroll_down); | |
| 5551 DEFSUBR (Fscroll_left); | |
| 5552 DEFSUBR (Fscroll_right); | |
| 5553 DEFSUBR (Fother_window_for_scrolling); | |
| 5554 DEFSUBR (Fscroll_other_window); | |
| 5555 DEFSUBR (Fcenter_to_window_line); | |
| 5556 DEFSUBR (Fmove_to_window_line); | |
| 5557 DEFSUBR (Fcurrent_pixel_column); | |
| 2289 | 5558 DEFSUBR (Fcurrent_pixel_row); |
| 428 | 5559 } |
| 5560 | |
| 5561 void | |
| 5562 reinit_vars_of_window (void) | |
| 5563 { | |
| 5564 /* Make sure all windows get marked */ | |
| 5565 minibuf_window = Qnil; | |
| 5566 staticpro_nodump (&minibuf_window); | |
| 5567 } | |
| 5568 | |
| 5569 void | |
| 5570 vars_of_window (void) | |
| 5571 { | |
|
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5572 #ifdef MEMORY_USAGE_STATS |
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5573 Lisp_Object l; |
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5574 |
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5575 l = listu (Qline_start_cache, |
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5576 #ifdef NEW_GC |
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5577 Qt, |
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5578 #endif |
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5579 Qface_cache, Qglyph_cache, |
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5580 #ifndef NEW_GC |
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5581 Qt, |
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5582 #endif |
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5583 Qredisplay_structs, |
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5584 #ifdef HAVE_SCROLLBARS |
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5585 Qscrollbar_instances, |
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5586 #endif |
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5587 intern ("window-mirror"), |
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5588 Qunbound); |
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5589 |
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5590 OBJECT_HAS_PROPERTY (window, memusage_stats_list, l); |
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5591 |
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5592 l = listu (Qredisplay_structs, |
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5593 #ifdef HAVE_SCROLLBARS |
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5594 Qt, Qscrollbar_instances, |
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5595 #endif |
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5596 Qunbound); |
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5597 OBJECT_HAS_PROPERTY (window_mirror, memusage_stats_list, l); |
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5598 #endif /* MEMORY_USAGE_STATS */ |
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5599 |
| 428 | 5600 DEFVAR_BOOL ("scroll-on-clipped-lines", &scroll_on_clipped_lines /* |
| 5601 *Non-nil means to scroll if point lands on a line which is clipped. | |
| 5602 */ ); | |
| 5603 scroll_on_clipped_lines = 1; | |
| 5604 | |
| 5605 DEFVAR_LISP ("temp-buffer-show-function", &Vtemp_buffer_show_function /* | |
| 5606 Non-nil means call as function to display a help buffer. | |
| 5607 The function is called with one argument, the buffer to be displayed. | |
| 5608 Used by `with-output-to-temp-buffer'. | |
| 5609 If this function is used, then it must do the entire job of showing | |
| 5610 the buffer; `temp-buffer-show-hook' is not run unless this function runs it. | |
| 442 | 5611 \(`temp-buffer-show-hook' is obsolete. Do not use in new code.) |
| 428 | 5612 */ ); |
| 5613 Vtemp_buffer_show_function = Qnil; | |
| 5614 | |
| 5615 DEFVAR_LISP ("minibuffer-scroll-window", &Vminibuffer_scroll_window /* | |
| 5616 Non-nil means it is the window that \\<minibuffer-local-map>\\[scroll-other-window] in minibuffer should scroll. | |
| 5617 */ ); | |
| 5618 Vminibuffer_scroll_window = Qnil; | |
| 5619 | |
| 5620 DEFVAR_LISP ("other-window-scroll-buffer", &Vother_window_scroll_buffer /* | |
| 5621 If non-nil, this is a buffer and \\[scroll-other-window] should scroll its window. | |
| 5622 */ ); | |
| 5623 Vother_window_scroll_buffer = Qnil; | |
| 5624 | |
| 5625 DEFVAR_LISP ("window-pixel-scroll-increment", &Vwindow_pixel_scroll_increment /* | |
| 5626 *Number of pixels to scroll by per requested line. | |
| 5627 If nil then normal line scrolling occurs regardless of line height. | |
| 5628 If t then scrolling is done in increments equal to the height of the default face. | |
| 5629 */ ); | |
| 5630 Vwindow_pixel_scroll_increment = Qt; | |
| 5631 | |
| 5632 DEFVAR_INT ("next-screen-context-lines", &next_screen_context_lines /* | |
| 5633 *Number of lines of continuity when scrolling by screenfuls. | |
| 5634 */ ); | |
| 5635 next_screen_context_lines = 2; | |
| 5636 | |
| 5637 DEFVAR_INT ("window-min-height", &window_min_height /* | |
| 5638 *Delete any window less than this tall (including its modeline). | |
| 5639 */ ); | |
| 5640 window_min_height = 4; | |
| 5641 | |
| 5642 DEFVAR_INT ("window-min-width", &window_min_width /* | |
| 5643 *Delete any window less than this wide. | |
| 5644 */ ); | |
| 5645 window_min_width = 10; | |
| 5646 } | |
| 5647 | |
| 5648 void | |
| 5649 specifier_vars_of_window (void) | |
| 5650 { | |
| 5651 DEFVAR_SPECIFIER ("modeline-shadow-thickness", &Vmodeline_shadow_thickness /* | |
| 5652 *How thick to draw 3D shadows around modelines. | |
| 5653 If this is set to 0, modelines will be the traditional 2D. Sizes above | |
| 5654 10 will be accepted but the maximum thickness that will be drawn is 10. | |
| 5655 This is a specifier; use `set-specifier' to change it. | |
| 5656 */ ); | |
| 5657 Vmodeline_shadow_thickness = Fmake_specifier (Qinteger); | |
| 5658 /* The initial value for modeline-shadow-thickness is 2, but if the | |
| 5659 user removes all specifications we provide a fallback value of 0, | |
| 5660 which is probably what was expected. */ | |
| 5661 set_specifier_fallback (Vmodeline_shadow_thickness, | |
| 5662 list1 (Fcons (Qnil, Qzero))); | |
| 5663 Fadd_spec_to_specifier (Vmodeline_shadow_thickness, make_int (2), | |
| 5664 Qnil, Qnil, Qnil); | |
| 5665 set_specifier_caching (Vmodeline_shadow_thickness, | |
| 438 | 5666 offsetof (struct window, modeline_shadow_thickness), |
| 428 | 5667 modeline_shadow_thickness_changed, |
| 444 | 5668 0, 0, 0); |
| 428 | 5669 |
| 5670 DEFVAR_SPECIFIER ("has-modeline-p", &Vhas_modeline_p /* | |
| 5671 *Whether the modeline should be displayed. | |
| 5672 This is a specifier; use `set-specifier' to change it. | |
| 5673 */ ); | |
| 5674 Vhas_modeline_p = Fmake_specifier (Qboolean); | |
| 5675 set_specifier_fallback (Vhas_modeline_p, | |
| 5676 list1 (Fcons (Qnil, Qt))); | |
| 5677 set_specifier_caching (Vhas_modeline_p, | |
| 438 | 5678 offsetof (struct window, has_modeline_p), |
| 428 | 5679 /* #### It's strange that we need a special |
| 5680 flag to indicate that the shadow-thickness | |
| 5681 has changed, but not one to indicate that | |
| 5682 the modeline has been turned off or on. */ | |
| 5683 some_window_value_changed, | |
| 444 | 5684 0, 0, 0); |
| 428 | 5685 |
| 5686 DEFVAR_SPECIFIER ("vertical-divider-always-visible-p", | |
| 5687 &Vvertical_divider_always_visible_p /* | |
| 5688 *Should XEmacs always display vertical dividers between windows. | |
| 5689 | |
| 5690 When this is non-nil, vertical dividers are always shown, and are | |
| 5691 draggable. When it is nil, vertical dividers are shown only when | |
| 5692 there are no scrollbars in between windows, and are not draggable. | |
| 5693 | |
| 5694 This is a specifier; use `set-specifier' to change it. | |
| 5695 */ ); | |
| 5696 Vvertical_divider_always_visible_p = Fmake_specifier (Qboolean); | |
| 5697 set_specifier_fallback (Vvertical_divider_always_visible_p, | |
| 5698 list1 (Fcons (Qnil, Qt))); | |
| 5699 set_specifier_caching (Vvertical_divider_always_visible_p, | |
| 438 | 5700 offsetof (struct window, |
| 5701 vertical_divider_always_visible_p), | |
| 428 | 5702 vertical_divider_changed_in_window, |
| 444 | 5703 0, 0, 0); |
| 428 | 5704 |
| 5705 DEFVAR_SPECIFIER ("vertical-divider-shadow-thickness", &Vvertical_divider_shadow_thickness /* | |
| 5706 *How thick to draw 3D shadows around vertical dividers. | |
| 5707 This is a specifier; use `set-specifier' to change it. | |
| 5708 */ ); | |
| 5709 Vvertical_divider_shadow_thickness = Fmake_specifier (Qinteger); | |
| 5710 set_specifier_fallback (Vvertical_divider_shadow_thickness, | |
| 5711 list1 (Fcons (Qnil, Qzero))); | |
| 5712 Fadd_spec_to_specifier (Vvertical_divider_shadow_thickness, make_int (2), | |
| 5713 Qnil, Qnil, Qnil); | |
| 5714 set_specifier_caching (Vvertical_divider_shadow_thickness, | |
| 438 | 5715 offsetof (struct window, |
| 5716 vertical_divider_shadow_thickness), | |
| 428 | 5717 vertical_divider_changed_in_window, |
| 444 | 5718 0, 0, 0); |
| 428 | 5719 DEFVAR_SPECIFIER ("vertical-divider-line-width", &Vvertical_divider_line_width /* |
| 5720 *The width of the vertical dividers, not including shadows. | |
| 5721 | |
| 5722 For TTY windows, divider line is always one character wide. When | |
| 5723 instance of this specifier is zero in a TTY window, no divider is | |
| 5724 drawn at all between windows. When non-zero, a one character wide | |
| 5725 divider is displayed. | |
| 5726 | |
| 5727 This is a specifier; use `set-specifier' to change it. | |
| 5728 */ ); | |
| 5729 | |
| 5730 Vvertical_divider_line_width = Fmake_specifier (Qnatnum); | |
| 5731 { | |
| 5732 Lisp_Object fb = Qnil; | |
| 5733 #ifdef HAVE_TTY | |
| 5734 fb = Fcons (Fcons (list1 (Qtty), make_int (1)), fb); | |
| 5735 #endif | |
| 462 | 5736 #ifdef HAVE_GTK |
| 5737 fb = Fcons (Fcons (list1 (Qgtk), make_int (3)), fb); | |
| 5738 #endif | |
| 428 | 5739 #ifdef HAVE_X_WINDOWS |
| 5740 fb = Fcons (Fcons (list1 (Qx), make_int (3)), fb); | |
| 5741 #endif | |
| 5742 #ifdef HAVE_MS_WINDOWS | |
| 5743 /* #### This should be made magic and made to obey system settings */ | |
| 5744 fb = Fcons (Fcons (list1 (Qmswindows), make_int (3)), fb); | |
| 5745 #endif | |
| 5746 set_specifier_fallback (Vvertical_divider_line_width, fb); | |
| 5747 } | |
| 5748 set_specifier_caching (Vvertical_divider_line_width, | |
| 438 | 5749 offsetof (struct window, |
| 5750 vertical_divider_line_width), | |
| 428 | 5751 vertical_divider_changed_in_window, |
| 444 | 5752 0, 0, 0); |
| 428 | 5753 |
| 5754 DEFVAR_SPECIFIER ("vertical-divider-spacing", &Vvertical_divider_spacing /* | |
| 5755 *How much space to leave around the vertical dividers. | |
| 5756 | |
| 5757 In TTY windows, spacing is always zero, and the value of this | |
| 5758 specifier is ignored. | |
| 5759 | |
| 5760 This is a specifier; use `set-specifier' to change it. | |
| 5761 */ ); | |
| 5762 Vvertical_divider_spacing = Fmake_specifier (Qnatnum); | |
| 5763 { | |
| 5764 Lisp_Object fb = Qnil; | |
| 5765 #ifdef HAVE_TTY | |
| 5766 fb = Fcons (Fcons (list1 (Qtty), Qzero), fb); | |
| 5767 #endif | |
| 5768 #ifdef HAVE_X_WINDOWS | |
| 5769 /* #### 3D dividers look great on MS Windows with spacing = 0. | |
| 5770 Should not the same value be the fallback under X? - kkm */ | |
| 5771 fb = Fcons (Fcons (list1 (Qx), make_int (2)), fb); | |
| 5772 #endif | |
| 462 | 5773 #ifdef HAVE_GTK |
| 5774 fb = Fcons (Fcons (list1 (Qgtk), Qzero), fb); | |
| 5775 #endif | |
| 428 | 5776 #ifdef HAVE_MS_WINDOWS |
| 5777 fb = Fcons (Fcons (list1 (Qmswindows), Qzero), fb); | |
| 5778 #endif | |
| 5779 set_specifier_fallback (Vvertical_divider_spacing, fb); | |
| 5780 } | |
| 5781 set_specifier_caching (Vvertical_divider_spacing, | |
| 438 | 5782 offsetof (struct window, vertical_divider_spacing), |
| 428 | 5783 vertical_divider_changed_in_window, |
| 444 | 5784 0, 0, 0); |
| 5785 } |