1 /* Synchronize redisplay structures and output changes.
2 Copyright (C) 1994, 1995 Board of Trustees, University of Illinois.
3 Copyright (C) 1995, 1996 Ben Wing.
4 Copyright (C) 1996 Chuck Thompson.
5 Copyright (C) 1999, 2002 Andy Piper.
7 This file is part of XEmacs.
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
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
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. */
24 /* Synched up with: Not in FSF. */
26 /* This file has been Mule-ized. */
28 /* Author: Chuck Thompson */
30 /* Heavily hacked for modularity, gutter and subwindow support by Andy
41 #include "redisplay.h"
45 static int compare_runes (struct window *w, struct rune *crb,
47 static void redraw_cursor_in_window (struct window *w,
48 int run_end_begin_glyphs);
49 static void redisplay_output_display_block (struct window *w, struct display_line *dl,
50 int block, int start, int end, int start_pixpos,
51 int cursor_start, int cursor_width,
53 static void redisplay_normalize_display_box (struct display_box* dest,
54 struct display_glyph_area* src);
55 static int redisplay_display_boxes_in_window_p (struct window* w,
56 struct display_box* db,
57 struct display_glyph_area* dga);
58 static void redisplay_clear_clipped_region (Lisp_Object locale, face_index findex,
59 struct display_box* dest,
60 struct display_glyph_area* glyphsrc,
61 int fullheight_p, Lisp_Object);
63 /*****************************************************************************
66 Synchronize the given rune blocks.
67 ****************************************************************************/
69 sync_rune_structs (struct window *w, rune_dynarr *cra, rune_dynarr *dra)
72 int max_move = ((Dynarr_length (dra) > Dynarr_largest (cra))
73 ? Dynarr_largest (cra)
74 : Dynarr_length (dra));
78 /* #### Doing this directly breaks the encapsulation. But, the
79 running time of this function has a measurable impact on
80 redisplay performance so avoiding all excess overhead is a
81 good thing. Is all of this true? */
82 memcpy (cra->base, dra->base, sizeof (struct rune) * max_move);
83 Dynarr_set_size (cra, max_move);
88 for (rune_elt = max_move; rune_elt < Dynarr_length (dra); rune_elt++)
91 struct rune *drb = Dynarr_atp (dra, rune_elt);
94 memcpy (crb, drb, sizeof (struct rune));
95 Dynarr_add (cra, *crb);
99 /*****************************************************************************
100 sync_display_line_structs
102 For the given LINE in window W, make the current display line equal
103 the desired display line.
104 ****************************************************************************/
106 sync_display_line_structs (struct window *w, int line, int do_blocks,
107 display_line_dynarr *cdla,
108 display_line_dynarr *ddla)
110 int cdla_len = Dynarr_length (cdla);
112 struct display_line dl, *clp, *dlp;
115 dlp = Dynarr_atp (ddla, line);
116 if (line >= Dynarr_largest (cdla))
119 clp->display_blocks = Dynarr_new (display_block);
123 clp = Dynarr_atp (cdla, line);
124 if (clp->display_blocks)
125 Dynarr_reset (clp->display_blocks);
126 if (clp->left_glyphs)
128 Dynarr_free (clp->left_glyphs);
129 clp->left_glyphs = 0;
131 if (clp->right_glyphs)
133 Dynarr_free (clp->right_glyphs);
134 clp->right_glyphs = 0;
138 display_block_dynarr *tdb = clp->display_blocks;
140 memcpy (clp, dlp, sizeof (struct display_line));
141 clp->display_blocks = tdb;
142 clp->left_glyphs = 0;
143 clp->right_glyphs = 0;
146 if (!do_blocks && line >= cdla_len)
148 Dynarr_add (cdla, *clp);
152 for (db_elt = 0; db_elt < Dynarr_length (dlp->display_blocks); db_elt++)
154 struct display_block db, *cdb;
155 struct display_block *ddb = Dynarr_atp (dlp->display_blocks, db_elt);
157 if (db_elt >= Dynarr_largest (clp->display_blocks))
160 memcpy (cdb, ddb, sizeof (struct display_block));
161 cdb->runes = Dynarr_new (rune);
162 Dynarr_add (clp->display_blocks, *cdb);
168 cdb = Dynarr_atp (clp->display_blocks, db_elt);
170 memcpy (cdb, ddb, sizeof (struct display_block));
172 Dynarr_increment (clp->display_blocks);
175 sync_rune_structs (w, cdb->runes, ddb->runes);
178 if (line >= cdla_len)
179 Dynarr_add (cdla, *clp);
182 /*****************************************************************************
185 Compare two runes to see if each of their fields is equal. If so,
186 return true otherwise return false.
187 ****************************************************************************/
189 compare_runes (struct window *w, struct rune *crb, struct rune *drb)
191 /* Do not compare the values of bufpos and endpos. They do not
192 affect the display characteristics. */
194 /* Note: (hanoi 6) spends 95% of its time in redisplay, and about
195 30% here. Not using bitfields for rune.type alone gives a redisplay
198 #### In profile arcs run of a normal Gnus session this function
199 is run 6.76 million times, only to return 1 in 6.73 million of
202 In addition a quick look GCC sparc assembly shows that GCC is not
203 doing a good job here.
204 1. The function is not inlined (too complicated?)
205 2. It seems to be reloading the crb and drb variables all the
207 3. It doesn't seem to notice that the second half of these if's
208 are really a switch statement.
212 #### It would really be worth it to arrange for this function to
213 be (almost) a single call to memcmp. */
215 if (crb->xpos != drb->xpos)
217 else if (crb->width != drb->width)
219 else if (crb->cursor_type != drb->cursor_type)
221 else if (crb->type != drb->type)
223 else if (crb->type == RUNE_CHAR &&
224 !CHARC_EQ (crb->object.cglyph, drb->object.cglyph))
226 else if (crb->type == RUNE_HLINE &&
227 (crb->object.hline.thickness != drb->object.hline.thickness ||
228 crb->object.hline.yoffset != drb->object.hline.yoffset))
230 else if (crb->type == RUNE_DGLYPH &&
231 (!EQ (crb->object.dglyph.glyph, drb->object.dglyph.glyph) ||
232 !EQ (crb->object.dglyph.extent, drb->object.dglyph.extent) ||
233 crb->object.dglyph.xoffset != drb->object.dglyph.xoffset ||
234 crb->object.dglyph.yoffset != drb->object.dglyph.yoffset ||
235 crb->object.dglyph.ascent != drb->object.dglyph.ascent ||
236 crb->object.dglyph.descent != drb->object.dglyph.descent))
238 /* Only check dirtiness if we know something has changed. */
239 else if (crb->type == RUNE_DGLYPH &&
240 (XGLYPH_DIRTYP (crb->object.dglyph.glyph) ||
241 crb->findex != drb->findex))
243 /* We need some way of telling redisplay_output_layout () that the
244 only reason we are outputting it is because something has
245 changed internally. That way we can optimize whether we need
246 to clear the layout first and also only output the components
247 that have changed. The image_instance dirty flag and
248 display_hash are no good to us because these will invariably
249 have been set anyway if the layout has changed. So it looks
250 like we need yet another change flag that we can set here and
251 then clear in redisplay_output_layout (). */
252 Lisp_Object window, image;
253 Lisp_Image_Instance* ii;
254 XSETWINDOW (window, w);
255 image = glyph_image_instance (crb->object.dglyph.glyph,
256 window, ERROR_ME_NOT, 1);
258 if (!IMAGE_INSTANCEP (image))
260 ii = XIMAGE_INSTANCE (image);
262 if (TEXT_IMAGE_INSTANCEP (image) &&
263 (crb->findex != drb->findex ||
264 WINDOW_FACE_CACHEL_DIRTY (w, drb->findex)))
267 /* It is quite common for the two glyphs to be EQ since in many
268 cases they will actually be the same object. This does not
269 mean, however, that nothing has changed. We therefore need to
270 check the current hash of the glyph against the last recorded
271 display hash and the pending display items. See
272 update_subwindow (). */
273 if (image_instance_changed (image) ||
274 crb->findex != drb->findex ||
275 WINDOW_FACE_CACHEL_DIRTY (w, drb->findex))
277 /* Now we are going to re-output the glyph, but since
278 this is for some internal reason not related to geometry
279 changes, send a hint to the output routines that they can
280 take some short cuts. This is most useful for
281 layouts. This flag should get reset by the output
284 #### It is possible for us to get here when the
285 face_cachel is dirty. I do not know what the implications
287 IMAGE_INSTANCE_OPTIMIZE_OUTPUT (ii) = 1;
293 /* We now do this last so that glyph checks can do their own thing
294 for face changes. Face changes quite often happen when we are
295 trying to output something in the gutter, this would normally
296 lead to a lot of flashing. The indices can quite often be
297 different and yet the faces are the same, we do not want to
298 re-output in this instance. */
299 else if (crb->findex != drb->findex ||
300 WINDOW_FACE_CACHEL_DIRTY (w, drb->findex))
306 /*****************************************************************************
307 get_next_display_block
309 Return the next display starting at or overlapping START_POS. Return
310 the start of the next region in NEXT_START.
311 ****************************************************************************/
313 get_next_display_block (layout_bounds bounds, display_block_dynarr *dba,
314 int start_pos, int *next_start)
316 int next_display_block = NO_BLOCK;
320 /* If we don't find a display block covering or starting at
321 start_pos, then we return the starting point of the next display
322 block or the next division boundary, whichever is closer to
326 if (start_pos >= bounds.left_out && start_pos < bounds.left_in)
327 *next_start = bounds.left_in;
328 else if (start_pos < bounds.left_white)
329 *next_start = bounds.left_white;
330 else if (start_pos < bounds.right_white)
331 *next_start = bounds.right_white;
332 else if (start_pos < bounds.right_in)
333 *next_start = bounds.right_in;
334 else if (start_pos <= bounds.right_out)
335 *next_start = bounds.right_out;
340 for (block = 0; block < Dynarr_length (dba); block++)
342 struct display_block *db = Dynarr_atp (dba, block);
344 if (db->start_pos <= start_pos && db->end_pos > start_pos)
346 if ((int) db->type > priority)
349 next_display_block = block;
351 *next_start = db->end_pos;
354 else if (next_start && db->start_pos > start_pos)
356 if (db->start_pos < *next_start)
357 *next_start = db->start_pos;
361 return next_display_block;
364 /*****************************************************************************
365 get_cursor_size_and_location
367 Return the information defining the pixel location of the cursor.
368 ****************************************************************************/
370 get_cursor_size_and_location (struct window *w, struct display_block *db,
372 int *cursor_start, int *cursor_width,
377 int defheight, defwidth;
379 if (Dynarr_length (db->runes) <= cursor_location)
382 XSETWINDOW (window, w);
384 rb = Dynarr_atp (db->runes, cursor_location);
385 *cursor_start = rb->xpos;
387 default_face_height_and_width (window, &defheight, &defwidth);
388 *cursor_height = defheight;
390 if (rb->type == RUNE_BLANK)
391 *cursor_width = defwidth;
393 *cursor_width = rb->width;
396 /*****************************************************************************
397 compare_display_blocks
399 Given two display blocks, output only those areas where they differ.
400 ****************************************************************************/
402 compare_display_blocks (struct window *w, struct display_line *cdl,
403 struct display_line *ddl, int c_block, int d_block,
404 int start_pixpos, int cursor_start, int cursor_width,
407 struct frame *f = XFRAME (w->frame);
408 struct display_block *cdb, *ddb;
414 cdb = Dynarr_atp (cdl->display_blocks, c_block);
415 ddb = Dynarr_atp (ddl->display_blocks, d_block);
417 assert (cdb->type == ddb->type);
420 stop_pos = min (Dynarr_length (cdb->runes), Dynarr_length (ddb->runes));
423 (!Dynarr_length (ddb->runes)
425 : (Dynarr_atp (ddb->runes, Dynarr_length (ddb->runes) - 1)->xpos +
426 Dynarr_atp (ddb->runes, Dynarr_length (ddb->runes) - 1)->width));
428 /* If the new block type is not text and the cursor status is
429 changing and it overlaps the position of this block then force a
430 full redraw of the block in order to make sure that the cursor is
432 if (ddb->type != TEXT
434 /* I'm not sure exactly what this code wants to do, but it's
435 * not right--it doesn't update when cursor_elt changes from, e.g.,
436 * 0 to 8, and the new or old cursor loc overlaps this block.
437 * I've replaced it with the more conservative test below.
438 * -dkindred@cs.cmu.edu 23-Mar-1997 */
439 && ((cdl->cursor_elt == -1 && ddl->cursor_elt != -1)
440 || (cdl->cursor_elt != -1 && ddl->cursor_elt == -1))
441 && (ddl->cursor_elt == -1 ||
444 && (cursor_start + cursor_width) >= start_pixpos
445 && cursor_start <= block_end))
447 && (cdl->cursor_elt != ddl->cursor_elt)
452 if (f->windows_structure_changed ||
453 /* #### Why is this so? We have face cachels so that we don't
454 have to recalculate all the display blocks when faces
455 change. I have fixed this for glyphs and am inclined to think
456 that faces should "Just Work", but I'm not feeling brave
457 today. Maybe its because the face cachels represent merged
458 faces rather than simply instantiations in a particular
461 cdl->ypos != ddl->ypos ||
462 cdl->ascent != ddl->ascent ||
463 cdl->descent != ddl->descent ||
464 cdl->clip != ddl->clip ||
474 while (start_pos < 0 && elt < stop_pos)
476 if (!compare_runes (w, Dynarr_atp (cdb->runes, elt),
477 Dynarr_atp (ddb->runes, elt)))
487 /* If nothing has changed in the area where the blocks overlap, but
488 there are new blocks in the desired block, then adjust the start
489 point accordingly. */
490 if (elt == stop_pos && stop_pos < Dynarr_length (ddb->runes))
491 start_pos = stop_pos;
496 if ((Dynarr_length (ddb->runes) != Dynarr_length (cdb->runes))
499 stop_pos = Dynarr_length (ddb->runes);
503 /* If the lines have the same number of runes and we are not
504 forcing a full redraw because the display line has
505 changed position then we try and optimize how much of the
506 line we actually redraw by scanning backwards from the
507 end for the first changed rune. This optimization is
508 almost always triggered by face changes. */
510 int elt = Dynarr_length (ddb->runes) - 1;
512 while (elt > start_pos)
514 if (!compare_runes (w, Dynarr_atp (cdb->runes, elt),
515 Dynarr_atp (ddb->runes, elt)))
523 redisplay_output_display_block (w, ddl, d_block, start_pos,
524 stop_pos, start_pixpos,
525 cursor_start, cursor_width,
533 /*****************************************************************************
536 Clear the lefthand outside border.
537 ****************************************************************************/
539 clear_left_border (struct window *w, int y, int height)
541 struct frame *f = XFRAME (w->frame);
544 XSETWINDOW (window, w);
545 redisplay_clear_region (window, DEFAULT_INDEX,
546 FRAME_LEFT_BORDER_START (f), y,
547 FRAME_BORDER_WIDTH (f), height);
550 /*****************************************************************************
553 Clear the righthand outside border.
554 ****************************************************************************/
556 clear_right_border (struct window *w, int y, int height)
558 struct frame *f = XFRAME (w->frame);
561 XSETWINDOW (window, w);
562 redisplay_clear_region (window, DEFAULT_INDEX,
563 FRAME_RIGHT_BORDER_START (f),
564 y, FRAME_BORDER_WIDTH (f), height);
567 /*****************************************************************************
570 Ensure that the contents of the given display line is correct
571 on-screen. The force_ parameters are used by redisplay_move_cursor
572 to correctly update cursor locations and only cursor locations.
573 ****************************************************************************/
575 output_display_line (struct window *w, display_line_dynarr *cdla,
576 display_line_dynarr *ddla, int line, int force_start,
580 struct frame *f = XFRAME (w->frame);
581 struct buffer *b = XBUFFER (w->buffer);
582 struct buffer *old_b = window_display_buffer (w);
583 struct display_line *cdl, *ddl;
584 display_block_dynarr *cdba, *ddba;
585 int start_pixpos, end_pixpos;
586 int cursor_start, cursor_width, cursor_height;
588 int force = (force_start >= 0 || force_end >= 0);
589 int clear_border = 0;
592 if (cdla && line < Dynarr_length (cdla))
594 cdl = Dynarr_atp (cdla, line);
595 cdba = cdl->display_blocks;
603 ddl = Dynarr_atp (ddla, line); /* assert line < Dynarr_length (ddla) */
604 ddba = ddl->display_blocks;
606 if (force_start >= 0 && force_start >= ddl->bounds.left_out)
607 start_pixpos = force_start;
609 start_pixpos = ddl->bounds.left_out;
611 if (force_end >= 0 && force_end < ddl->bounds.right_out)
612 end_pixpos = force_end;
614 end_pixpos = ddl->bounds.right_out;
616 /* Get the cursor parameters. */
617 if (ddl->cursor_elt != -1)
619 struct display_block *db;
621 /* If the lines cursor parameter is not -1 then it indicates
622 which rune in the TEXT block contains the cursor. This means
623 that there must be at least one display block. The TEXT
624 block, if present, must always be the first display block. */
625 assert (Dynarr_length (ddba) != 0);
627 db = Dynarr_atp (ddba, 0);
628 assert (db->type == TEXT);
630 get_cursor_size_and_location (w, db, ddl->cursor_elt, &cursor_start,
631 &cursor_width, &cursor_height);
635 cursor_start = cursor_width = cursor_height = 0;
638 /* The modeline should only have a single block and it had better be
642 /* The shadow thickness check is necessary if only the sign of
644 if (cdba && !w->shadow_thickness_changed)
646 must_sync |= compare_display_blocks (w, cdl, ddl, 0, 0,
647 start_pixpos, 0, 0, 0);
651 redisplay_output_display_block (w, ddl, 0, 0, -1, start_pixpos,
660 while (!ddl->modeline && start_pixpos < end_pixpos)
663 int next_start_pixpos;
665 block = get_next_display_block (ddl->bounds, ddba, start_pixpos,
668 /* If we didn't find a block then we should blank the area
669 between start_pos and next_start if necessary. */
670 if (block == NO_BLOCK)
672 /* We only erase those areas which were actually previously
673 covered by a display block unless the window structure
674 changed. In that case we clear all areas since the current
675 structures may actually represent a different buffer. */
676 while (start_pixpos < next_start_pixpos)
682 old_block = get_next_display_block (ddl->bounds, cdba,
683 start_pixpos, &block_end);
686 old_block = NO_BLOCK;
687 block_end = next_start_pixpos;
690 if (!cdba || old_block != NO_BLOCK || b != old_b ||
691 f->windows_structure_changed ||
694 (cdl && (cdl->ypos != ddl->ypos ||
695 cdl->ascent != ddl->ascent ||
696 cdl->descent != ddl->descent ||
697 cdl->top_clip != ddl->top_clip ||
698 cdl->clip != ddl->clip)))
700 int x, y, width, height;
705 y = DISPLAY_LINE_YPOS (ddl);
706 width = min (next_start_pixpos, block_end) - x;
707 height = DISPLAY_LINE_HEIGHT (ddl);
709 if (x < ddl->bounds.left_in)
711 findex = ddl->left_margin_findex ?
712 ddl->left_margin_findex
713 : get_builtin_face_cache_index (w, Vleft_margin_face);
715 else if (x < ddl->bounds.right_in)
717 /* no check here because DEFAULT_INDEX == 0 anyway */
718 findex = ddl->default_findex;
720 else if (x < ddl->bounds.right_out)
722 findex = ddl->right_margin_findex ?
723 ddl->right_margin_findex
724 : get_builtin_face_cache_index (w, Vright_margin_face);
727 findex = (face_index) -1;
729 if (findex != (face_index) -1)
733 XSETWINDOW (window, w);
735 /* Clear the empty area. */
736 redisplay_clear_region (window, findex, x, y, width, height);
738 /* Mark that we should clear the border. This is
739 necessary because italic fonts may leave
740 droppings in the border. */
745 start_pixpos = min (next_start_pixpos, block_end);
750 struct display_block *cdb, *ddb;
755 old_block = get_next_display_block (ddl->bounds, cdba,
756 start_pixpos, &block_end);
758 old_block = NO_BLOCK;
760 ddb = Dynarr_atp (ddba, block);
761 cdb = (old_block != NO_BLOCK ? Dynarr_atp (cdba, old_block) : 0);
763 /* If there was formerly no block over the current
764 region or if it was a block of a different type, then
765 output the entire ddb. Otherwise, compare cdb and
766 ddb and output only the changed region. */
767 if (!force && cdb && ddb->type == cdb->type
768 /* If there was no buffer being display before the
769 compare anyway as we might be outputting a gutter. */
771 (b == old_b || !old_b))
773 must_sync |= compare_display_blocks (w, cdl, ddl, old_block,
775 cursor_start, cursor_width,
784 for (elt = 0; elt < Dynarr_length (ddb->runes); elt++)
786 struct rune *rb = Dynarr_atp (ddb->runes, elt);
788 if (start_pixpos >= rb->xpos
789 && start_pixpos < rb->xpos + rb->width)
792 if (end_pixpos > rb->xpos
793 && end_pixpos <= rb->xpos + rb->width)
796 if (last_elt > Dynarr_length (ddb->runes))
797 last_elt = Dynarr_length (ddb->runes);
803 redisplay_output_display_block (w, ddl, block, first_elt,
806 cursor_start, cursor_width,
810 start_pixpos = next_start_pixpos;
814 /* Clear the internal border if we are next to it and the window
815 structure or frame size has changed or if something caused
816 clear_border to be tripped. */
817 /* #### Doing this on f->clear sucks but is necessary because of
818 window-local background values. */
819 if (f->windows_structure_changed || f->faces_changed || clear_border
822 int y = DISPLAY_LINE_YPOS (ddl);
823 int height = DISPLAY_LINE_HEIGHT (ddl);
825 /* If we are in the gutter then we musn't clear the borders. */
826 if (y >= WINDOW_TEXT_TOP (w) && (y + height) <= WINDOW_TEXT_BOTTOM (w))
830 y -= MODELINE_SHADOW_THICKNESS (w);
831 height += (2 * MODELINE_SHADOW_THICKNESS (w));
834 if (window_is_leftmost (w))
835 clear_left_border (w, y, height);
836 if (window_is_rightmost (w))
837 clear_right_border (w, y, height);
842 sync_display_line_structs (w, line, must_sync, cdla, ddla);
845 /*****************************************************************************
846 redisplay_move_cursor
848 For the given window W, move the cursor to NEW_POINT. Returns a
849 boolean indicating success or failure.
850 ****************************************************************************/
852 #define ADJ_BUFPOS (rb->bufpos + dl->offset)
853 #define ADJ_ENDPOS (rb->endpos + dl->offset)
856 redisplay_move_cursor (struct window *w, Bufpos new_point, int no_output_end)
858 struct frame *f = XFRAME (w->frame);
859 struct device *d = XDEVICE (f->device);
861 display_line_dynarr *cla = window_display_lines (w, CURRENT_DISP);
862 struct display_line *dl;
863 struct display_block *db;
865 int x = w->last_point_x[CURRENT_DISP];
866 int y = w->last_point_y[CURRENT_DISP];
869 * Bail if cursor_in_echo_area is non-zero and we're fiddling with
870 * the cursor in a non-active minibuffer window, since that is a
871 * special case that is handled elsewhere and this function need
872 * not handle it. Return 1 so the caller will assume we
875 if (cursor_in_echo_area && MINI_WINDOW_P (w) &&
876 w != XWINDOW (FRAME_SELECTED_WINDOW (f)))
879 if (y < 0 || y >= Dynarr_length (cla))
882 dl = Dynarr_atp (cla, y);
883 db = get_display_block_from_line (dl, TEXT);
885 if (x < 0 || x >= Dynarr_length (db->runes))
888 rb = Dynarr_atp (db->runes, x);
890 if (rb->cursor_type == CURSOR_OFF)
892 else if (ADJ_BUFPOS == new_point
893 || (ADJ_ENDPOS && (new_point >= ADJ_BUFPOS)
894 && (new_point <= ADJ_ENDPOS)))
896 w->last_point_x[CURRENT_DISP] = x;
897 w->last_point_y[CURRENT_DISP] = y;
898 Fset_marker (w->last_point[CURRENT_DISP], make_int (ADJ_BUFPOS),
906 MAYBE_DEVMETH (d, frame_output_begin, (f));
907 MAYBE_DEVMETH (d, window_output_begin, (w));
909 rb->cursor_type = CURSOR_OFF;
911 output_display_line (w, 0, cla, y, rb->xpos, rb->xpos + rb->width);
914 w->last_point_x[CURRENT_DISP] = -1;
915 w->last_point_y[CURRENT_DISP] = -1;
916 Fset_marker (w->last_point[CURRENT_DISP], Qnil, w->buffer);
918 /* If this isn't the selected frame, then erasing the old cursor is
919 all we actually had to do. */
920 if (w != XWINDOW (FRAME_SELECTED_WINDOW (device_selected_frame (d))))
924 MAYBE_DEVMETH (d, window_output_end, (w));
925 MAYBE_DEVMETH (d, frame_output_end, (f));
931 /* This should only occur in the minibuffer. */
934 w->last_point_x[CURRENT_DISP] = 0;
935 w->last_point_y[CURRENT_DISP] = y;
936 Fset_marker (w->last_point[CURRENT_DISP], Qzero, w->buffer);
938 rb = Dynarr_atp (db->runes, 0);
939 rb->cursor_type = CURSOR_ON;
942 output_display_line (w, 0, cla, y, rb->xpos, rb->xpos + rb->width);
946 MAYBE_DEVMETH (d, window_output_end, (w));
947 MAYBE_DEVMETH (d, frame_output_end, (f));
957 if (ADJ_BUFPOS < new_point)
963 else /* (rb->bufpos + dl->offset) > new_point */
980 while (up ? (cur_dl < Dynarr_length (cla)) : (cur_dl >= 0))
982 dl = Dynarr_atp (cla, cur_dl);
983 db = get_display_block_from_line (dl, TEXT);
986 cur_rb = Dynarr_length (db->runes) - 1;
988 while ((!scroll_on_clipped_lines || !dl->clip) &&
989 (up ? (cur_rb < Dynarr_length (db->runes)) : (cur_rb >= 0)))
991 rb = Dynarr_atp (db->runes, cur_rb);
993 if (rb->cursor_type != IGNORE_CURSOR
994 && rb->cursor_type != NO_CURSOR &&
995 (ADJ_BUFPOS == new_point
996 || (ADJ_ENDPOS && (new_point >= ADJ_BUFPOS)
997 && (new_point <= ADJ_BUFPOS))))
999 rb->cursor_type = CURSOR_ON;
1000 dl->cursor_elt = cur_rb;
1003 output_display_line (w, 0, cla, cur_dl, rb->xpos,
1004 rb->xpos + rb->width);
1006 w->last_point_x[CURRENT_DISP] = cur_rb;
1007 w->last_point_y[CURRENT_DISP] = cur_dl;
1008 Fset_marker (w->last_point[CURRENT_DISP],
1009 make_int (ADJ_BUFPOS), w->buffer);
1013 MAYBE_DEVMETH (d, window_output_end, (w));
1014 MAYBE_DEVMETH (d, frame_output_end, (f));
1019 (up ? cur_rb++ : cur_rb--);
1022 (up ? (cur_rb = 0) : (first = 0));
1023 (up ? cur_dl++ : cur_dl--);
1029 MAYBE_DEVMETH (d, window_output_end, (w));
1030 MAYBE_DEVMETH (d, frame_output_end, (f));
1037 /*****************************************************************************
1038 redraw_cursor_in_window
1040 For the given window W, redraw the cursor if it is contained within
1042 ****************************************************************************/
1044 redraw_cursor_in_window (struct window *w, int run_end_begin_meths)
1046 struct frame *f = XFRAME (w->frame);
1047 struct device *d = XDEVICE (f->device);
1049 display_line_dynarr *dla = window_display_lines (w, CURRENT_DISP);
1050 struct display_line *dl;
1051 struct display_block *db;
1054 int x = w->last_point_x[CURRENT_DISP];
1055 int y = w->last_point_y[CURRENT_DISP];
1057 if (cursor_in_echo_area && MINI_WINDOW_P (w) &&
1058 !echo_area_active (f) && minibuf_level == 0)
1060 MAYBE_DEVMETH (d, set_final_cursor_coords, (f, w->pixel_top, 0));
1063 if (y < 0 || y >= Dynarr_length (dla))
1066 if (MINI_WINDOW_P (w) && f != device_selected_frame (d) &&
1067 !is_surrogate_for_selected_frame (f))
1070 dl = Dynarr_atp (dla, y);
1071 db = get_display_block_from_line (dl, TEXT);
1073 if (x < 0 || x >= Dynarr_length (db->runes))
1076 rb = Dynarr_atp (db->runes, x);
1078 /* Don't call the output routine if the block isn't actually the
1080 if (rb->cursor_type == CURSOR_ON)
1082 MAYBE_DEVMETH (d, set_final_cursor_coords,
1083 (f, dl->ypos - 1, rb->xpos));
1085 if (run_end_begin_meths)
1087 MAYBE_DEVMETH (d, frame_output_begin, (f));
1088 MAYBE_DEVMETH (d, window_output_begin, (w));
1091 output_display_line (w, 0, dla, y, rb->xpos, rb->xpos + rb->width);
1093 if (run_end_begin_meths)
1095 MAYBE_DEVMETH (d, window_output_end, (w));
1096 MAYBE_DEVMETH (d, frame_output_end, (f));
1101 /*****************************************************************************
1102 redisplay_redraw_cursor
1104 For the given frame F, redraw the cursor on the selected window.
1105 This is used to update the cursor after focus changes.
1106 ****************************************************************************/
1108 redisplay_redraw_cursor (struct frame *f, int run_end_begin_meths)
1112 if (!cursor_in_echo_area)
1113 window = FRAME_SELECTED_WINDOW (f);
1114 else if (FRAME_HAS_MINIBUF_P (f))
1115 window = FRAME_MINIBUF_WINDOW (f);
1119 redraw_cursor_in_window (XWINDOW (window), run_end_begin_meths);
1122 /****************************************************************************
1123 redisplay_output_display_block
1125 Given a display line, a block number for that start line, output all
1126 runes between start and end in the specified display block.
1127 ****************************************************************************/
1129 redisplay_output_display_block (struct window *w, struct display_line *dl, int block,
1130 int start, int end, int start_pixpos, int cursor_start,
1131 int cursor_width, int cursor_height)
1133 struct frame *f = XFRAME (w->frame);
1134 struct device *d = XDEVICE (f->device);
1135 /* Temporarily disabled until generalization is done. */
1137 struct display_block *db = Dynarr_atp (dl->display_blocks, block);
1138 rune_dynarr *rba = db->runes;
1141 rb = Dynarr_atp (rba, start);
1144 /* Nothing to do so don't do anything. */
1147 xpos = max (start_pixpos, rb->xpos);
1150 end = Dynarr_length (rba);
1152 rb = Dynarr_atp (rba, end - 1);
1153 width = rb->xpos + rb->width - xpos;
1155 /* now actually output the block. */
1156 DEVMETH (d, output_display_block, (w, dl, block, start,
1158 cursor_start, cursor_width,
1162 /****************************************************************************
1163 redisplay_unmap_subwindows
1165 Remove subwindows from the area in the box defined by the given
1167 ****************************************************************************/
1169 redisplay_unmap_subwindows (struct frame* f, int x, int y, int width, int height,
1170 Lisp_Object ignored_window)
1174 LIST_LOOP (rest, XWEAK_LIST_LIST (FRAME_SUBWINDOW_CACHE (f)))
1176 Lisp_Image_Instance *ii = XIMAGE_INSTANCE (XCAR (rest));
1177 if (IMAGE_INSTANCE_SUBWINDOW_DISPLAYEDP (ii)
1179 IMAGE_INSTANCE_DISPLAY_X (ii)
1180 + IMAGE_INSTANCE_DISPLAY_WIDTH (ii) > (unsigned) x
1182 IMAGE_INSTANCE_DISPLAY_X (ii) < (unsigned) (x + width)
1184 IMAGE_INSTANCE_DISPLAY_Y (ii)
1185 + IMAGE_INSTANCE_DISPLAY_HEIGHT (ii) > (unsigned) y
1187 IMAGE_INSTANCE_DISPLAY_Y (ii) < (unsigned) (y + height)
1189 !EQ (XCAR (rest), ignored_window))
1191 unmap_subwindow (XCAR (rest));
1196 /****************************************************************************
1197 redisplay_unmap_subwindows_maybe
1199 Potentially subwindows from the area in the box defined by the given
1201 ****************************************************************************/
1202 void redisplay_unmap_subwindows_maybe (struct frame* f, int x, int y, int width, int height)
1204 if (!NILP (XWEAK_LIST_LIST (FRAME_SUBWINDOW_CACHE (f))))
1206 redisplay_unmap_subwindows (f, x, y, width, height, Qnil);
1210 static void redisplay_unmap_subwindows_except_us (struct frame* f, int x, int y, int width,
1211 int height, Lisp_Object subwindow)
1213 if (!NILP (XWEAK_LIST_LIST (FRAME_SUBWINDOW_CACHE (f))))
1215 redisplay_unmap_subwindows (f, x, y, width, height, subwindow);
1219 /****************************************************************************
1220 redisplay_output_subwindow
1222 output a subwindow. This code borrows heavily from the pixmap stuff,
1223 although is much simpler not needing to account for partial
1224 pixmaps, backgrounds etc.
1225 ****************************************************************************/
1227 redisplay_output_subwindow (struct window *w,
1228 Lisp_Object image_instance,
1229 struct display_box* db, struct display_glyph_area* dga,
1230 face_index findex, int cursor_start, int cursor_width,
1233 Lisp_Image_Instance *p = XIMAGE_INSTANCE (image_instance);
1235 struct display_glyph_area sdga;
1237 dga->height = IMAGE_INSTANCE_HEIGHT (p);
1238 dga->width = IMAGE_INSTANCE_WIDTH (p);
1240 /* The first thing we are going to do is update the display
1241 characteristics of the subwindow. This also clears the dirty
1242 flags as a side effect. */
1243 redisplay_subwindow (image_instance);
1245 /* This makes the glyph area fit into the display area. */
1246 if (!redisplay_normalize_glyph_area (db, dga))
1249 XSETWINDOW (window, w);
1251 /* Clear the area the subwindow is going into. */
1252 redisplay_clear_clipped_region (window, findex,
1253 db, dga, 0, image_instance);
1255 /* This shrinks the display box to exactly enclose the glyph
1257 redisplay_normalize_display_box (db, dga);
1259 /* if we can't view the whole window we can't view any of it. We
1260 have to be careful here since we may be being asked to display
1261 part of a subwindow, the rest of which is on-screen as well. We
1262 need to allow this case and map the entire subwindow. We also
1263 need to be careful since the subwindow could be outside the
1264 window in the gutter or modeline - we also need to allow these
1266 sdga.xoffset = -dga->xoffset;
1267 sdga.yoffset = -dga->yoffset;
1268 sdga.height = IMAGE_INSTANCE_HEIGHT (p);
1269 sdga.width = IMAGE_INSTANCE_WIDTH (p);
1271 if (redisplay_display_boxes_in_window_p (w, db, &sdga) == 0
1273 /* We only want to do full subwindow display for windows that
1274 are completely in the gutter, otherwise we must clip to be
1276 display_boxes_in_gutter_p (XFRAME (w->frame), db, &sdga) <= 0)
1278 map_subwindow (image_instance, db->xpos, db->ypos, dga);
1282 sdga.xoffset = sdga.yoffset = 0;
1283 map_subwindow (image_instance, db->xpos - dga->xoffset,
1284 db->ypos - dga->yoffset, &sdga);
1288 /****************************************************************************
1289 redisplay_output_layout
1291 Output a widget hierarchy. This can safely call itself recursively.
1293 The complexity of outputting layouts is deciding whether to do it or
1294 not. Consider a layout enclosing some text, the text changes and is
1295 marked as dirty, but the enclosing layout has not been marked as
1296 dirty so no updates occur and the text will potentially be truncated.
1297 Alternatively we hold a back pointer in the image instance to the
1298 parent and mark the parent as dirty. But the layout code assumes that
1299 if the layout is dirty then the whole layout should be redisplayed,
1300 so we then get lots of flashing even though only the text has changed
1301 size. Of course if the text shrinks in size then we do actually need
1302 to redisplay the layout to repaint the exposed area. So what happens
1303 if we make a non-structural change like changing color? Either we
1304 redisplay everything, or we redisplay nothing. These are exactly the
1305 issues lwlib has to grapple with. We really need to know what has
1306 actually changed and make a layout decision based on that. We also
1307 really need to know what has changed so that we can only make the
1308 necessary changes in update_subwindow. This has all now been
1309 implemented, Viva la revolution!
1310 ****************************************************************************/
1312 redisplay_output_layout (Lisp_Object domain,
1313 Lisp_Object image_instance,
1314 struct display_box* db, struct display_glyph_area* dga,
1315 face_index findex, int cursor_start, int cursor_width,
1318 Lisp_Image_Instance *p = XIMAGE_INSTANCE (image_instance);
1319 Lisp_Object rest, window = DOMAIN_WINDOW (domain);
1321 struct window *w = XWINDOW (window);
1322 struct device *d = DOMAIN_XDEVICE (domain);
1323 int layout_height, layout_width;
1325 layout_height = glyph_height (image_instance, domain);
1326 layout_width = glyph_width (image_instance, domain);
1328 dga->height = layout_height;
1329 dga->width = layout_width;
1330 #ifdef DEBUG_WIDGET_OUTPUT
1331 printf ("outputing layout glyph %p\n", p);
1333 /* This makes the glyph area fit into the display area. */
1334 if (!redisplay_normalize_glyph_area (db, dga))
1337 buf = Dynarr_new (Charc);
1339 /* Highly dodgy optimization. We want to only output the whole
1340 layout if we really have to. */
1341 if (!IMAGE_INSTANCE_OPTIMIZE_OUTPUT (p)
1342 || IMAGE_INSTANCE_LAYOUT_CHANGED (p)
1343 || IMAGE_INSTANCE_WIDGET_FACE_CHANGED (p)
1344 || IMAGE_INSTANCE_SIZE_CHANGED (p)
1345 || IMAGE_INSTANCE_WIDGET_ITEMS_CHANGED (p))
1347 /* First clear the area we are drawing into. This is the easiest
1348 thing to do since we have many gaps that we have to make sure are
1350 redisplay_clear_clipped_region (window, findex, db, dga, 1, Qnil);
1352 /* Output a border if required */
1353 if (!NILP (IMAGE_INSTANCE_LAYOUT_BORDER (p)))
1356 enum edge_style style;
1357 int ypos = db->ypos;
1358 int xpos = db->xpos;
1359 int height = dga->height;
1360 int width = dga->width;
1362 /* The bevel_area routines always draw in from the specified
1363 area so there is no need to adjust the displayed area to
1364 make sure that the lines are visible. */
1365 if (dga->xoffset >= 0)
1367 if (dga->width - dga->xoffset == layout_width)
1368 edges |= EDGE_RIGHT;
1369 if (dga->yoffset >= 0)
1371 if (dga->height - dga->yoffset == layout_height)
1372 edges |= EDGE_BOTTOM;
1374 if (EQ (IMAGE_INSTANCE_LAYOUT_BORDER (p), Qetched_in))
1375 style = EDGE_ETCHED_IN;
1376 else if (EQ (IMAGE_INSTANCE_LAYOUT_BORDER (p), Qetched_out))
1377 style = EDGE_ETCHED_OUT;
1378 else if (EQ (IMAGE_INSTANCE_LAYOUT_BORDER (p), Qbevel_in))
1379 style = EDGE_BEVEL_IN;
1380 else if (INTP (IMAGE_INSTANCE_LAYOUT_BORDER (p)))
1382 style = EDGE_ETCHED_IN;
1383 if (edges & EDGE_TOP)
1385 ypos += XINT (IMAGE_INSTANCE_LAYOUT_BORDER (p));
1386 height -= XINT (IMAGE_INSTANCE_LAYOUT_BORDER (p));
1390 style = EDGE_BEVEL_OUT;
1392 MAYBE_DEVMETH (d, bevel_area,
1393 (w, findex, xpos, ypos, width, height,
1394 DEFAULT_WIDGET_SHADOW_WIDTH, edges, style));
1398 /* This shrinks the display box to exactly enclose the glyph
1400 redisplay_normalize_display_box (db, dga);
1402 /* Flip through the widgets in the layout displaying as necessary */
1403 LIST_LOOP (rest, IMAGE_INSTANCE_LAYOUT_CHILDREN (p))
1405 Lisp_Object child = glyph_image_instance (XCAR (rest), image_instance,
1408 struct display_box cdb;
1409 /* For losing HP-UX */
1410 cdb.xpos = db->xpos;
1411 cdb.ypos = db->ypos;
1412 cdb.width = db->width;
1413 cdb.height = db->height;
1415 /* First determine if the image is visible at all */
1416 if (IMAGE_INSTANCEP (child))
1418 Lisp_Image_Instance* childii = XIMAGE_INSTANCE (child);
1420 /* The enclosing layout offsets are +ve at this point */
1421 struct display_glyph_area cdga;
1422 cdga.xoffset = IMAGE_INSTANCE_XOFFSET (childii) - dga->xoffset;
1423 cdga.yoffset = IMAGE_INSTANCE_YOFFSET (childii) - dga->yoffset;
1424 cdga.width = glyph_width (child, image_instance);
1425 cdga.height = glyph_height (child, image_instance);
1427 IMAGE_INSTANCE_OPTIMIZE_OUTPUT (childii) =
1428 IMAGE_INSTANCE_OPTIMIZE_OUTPUT (p);
1430 /* Although normalization is done by the output routines
1431 we have to do it here so that they don't try and
1432 clear all of db. This is true below also. */
1433 if (redisplay_normalize_glyph_area (&cdb, &cdga))
1435 redisplay_normalize_display_box (&cdb, &cdga);
1436 /* Since the display boxes will now be totally in the
1437 window if they are visible at all we can now check this easily. */
1438 if (cdb.xpos < db->xpos || cdb.ypos < db->ypos
1439 || cdb.xpos + cdb.width > db->xpos + db->width
1440 || cdb.ypos + cdb.height > db->ypos + db->height)
1442 /* We have to invert the offset here as normalization
1443 will have made them positive which the output
1444 routines will treat as a truly +ve offset. */
1445 cdga.xoffset = -cdga.xoffset;
1446 cdga.yoffset = -cdga.yoffset;
1448 switch (IMAGE_INSTANCE_TYPE (childii))
1452 /* #### This is well hacked and could use some
1454 if (redisplay_normalize_glyph_area (&cdb, &cdga)
1456 (!IMAGE_INSTANCE_OPTIMIZE_OUTPUT (childii) ||
1457 IMAGE_INSTANCE_DIRTYP (childii)))
1459 struct display_line dl; /* this is fake */
1460 Lisp_Object string =
1461 IMAGE_INSTANCE_TEXT_STRING (childii);
1462 Charset_ID charsets[NUM_LEADING_BYTES];
1463 struct face_cachel *cachel = WINDOW_FACE_CACHEL (w, findex);
1465 find_charsets_in_bufbyte_string (charsets,
1466 XSTRING_DATA (string),
1467 XSTRING_LENGTH (string));
1468 ensure_face_cachel_complete (cachel, window, charsets);
1470 convert_bufbyte_string_into_charc_dynarr
1471 (XSTRING_DATA (string), XSTRING_LENGTH (string),
1474 redisplay_normalize_display_box (&cdb, &cdga);
1475 /* Offsets are now +ve again so be careful
1476 when fixing up the display line. */
1478 /* Munge boxes into display lines. */
1479 dl.ypos = (cdb.ypos - cdga.yoffset)
1480 + glyph_ascent (child, image_instance);
1481 dl.ascent = glyph_ascent (child, image_instance);
1482 dl.descent = glyph_descent (child, image_instance);
1483 dl.top_clip = cdga.yoffset;
1484 dl.clip = (dl.ypos + dl.descent) - (cdb.ypos + cdb.height);
1485 /* output_string doesn't understand offsets in
1486 the same way as other routines - we have to
1487 add the offset to the width so that we
1488 output the full string. */
1489 MAYBE_DEVMETH (d, output_string, (w, &dl, buf, cdb.xpos,
1490 cdga.xoffset, cdb.xpos,
1491 cdga.width + cdga.xoffset,
1492 findex, 0, 0, 0, 0));
1498 case IMAGE_MONO_PIXMAP:
1499 case IMAGE_COLOR_PIXMAP:
1500 if (!IMAGE_INSTANCE_OPTIMIZE_OUTPUT (childii)
1501 || IMAGE_INSTANCE_DIRTYP (childii))
1502 redisplay_output_pixmap (w, child, &cdb, &cdga, findex,
1507 if (EQ (IMAGE_INSTANCE_WIDGET_TYPE (childii), Qlayout))
1509 redisplay_output_layout (image_instance, child, &cdb, &cdga, findex,
1513 case IMAGE_SUBWINDOW:
1514 if (!IMAGE_INSTANCE_OPTIMIZE_OUTPUT (childii) ||
1515 IMAGE_INSTANCE_DIRTYP (childii))
1516 redisplay_output_subwindow (w, child, &cdb, &cdga, findex,
1521 /* nothing is as nothing does */
1529 IMAGE_INSTANCE_OPTIMIZE_OUTPUT (childii) = 0;
1533 /* Update any display properties. I'm not sure whether this actually
1534 does anything for layouts except clear the changed flags. */
1535 redisplay_subwindow (image_instance);
1540 /****************************************************************************
1541 redisplay_output_pixmap
1545 ****************************************************************************/
1547 redisplay_output_pixmap (struct window *w,
1548 Lisp_Object image_instance,
1549 struct display_box* db, struct display_glyph_area* dga,
1550 face_index findex, int cursor_start, int cursor_width,
1551 int cursor_height, int offset_bitmap)
1553 struct frame *f = XFRAME (w->frame);
1554 struct device *d = XDEVICE (f->device);
1555 Lisp_Image_Instance *p = XIMAGE_INSTANCE (image_instance);
1557 XSETWINDOW (window, w);
1559 dga->height = IMAGE_INSTANCE_PIXMAP_HEIGHT (p);
1560 dga->width = IMAGE_INSTANCE_PIXMAP_WIDTH (p);
1562 #ifdef DEBUG_REDISPLAY
1563 printf ("redisplay_output_pixmap(request) \
1564 [%dx%d@%d+%d] in [%dx%d@%d+%d]\n",
1565 db->width, db->height, db->xpos, db->ypos,
1566 dga->width, dga->height, dga->xoffset, dga->yoffset);
1569 /* This makes the glyph area fit into the display area. */
1570 if (!redisplay_normalize_glyph_area (db, dga))
1573 #ifdef DEBUG_REDISPLAY
1574 printf ("redisplay_output_pixmap(normalized) \
1575 [%dx%d@%d+%d] in [%dx%d@%d+%d]\n",
1576 db->width, db->height, db->xpos, db->ypos,
1577 dga->width, dga->height, dga->xoffset, dga->yoffset);
1580 /* Clear the area the pixmap is going into. The pixmap itself will
1581 always take care of the full width. We don't want to clear where
1582 it is going to go in order to avoid flicker. So, all we have to
1583 take care of is any area above or below the pixmap. If the pixmap
1584 has a mask in which case we have to clear the whole damn thing
1585 since we can't yet clear just the area not included in the
1589 redisplay_clear_clipped_region (window, findex,
1591 (IMAGE_INSTANCE_PIXMAP_MASK (p) != 0),
1594 /* This shrinks the display box to exactly enclose the glyph
1596 redisplay_normalize_display_box (db, dga);
1598 assert (db->xpos >= 0 && db->ypos >= 0);
1600 MAYBE_DEVMETH (d, output_pixmap, (w, image_instance,
1602 findex, cursor_start,
1603 cursor_width, cursor_height,
1607 /****************************************************************************
1608 redisplay_clear_region
1610 Clear the area in the box defined by the given parameters using the
1611 given face. This has been generalised so that subwindows can be
1612 coped with effectively.
1613 ****************************************************************************/
1615 redisplay_clear_region (Lisp_Object locale, face_index findex, int x, int y,
1616 int width, int height)
1618 struct window *w = NULL;
1619 struct frame *f = NULL;
1621 Lisp_Object background_pixmap = Qunbound;
1622 Lisp_Object fcolor = Qnil, bcolor = Qnil;
1624 if (!width || !height)
1627 if (WINDOWP (locale))
1629 w = XWINDOW (locale);
1630 f = XFRAME (w->frame);
1632 else if (FRAMEP (locale))
1635 f = XFRAME (locale);
1640 d = XDEVICE (f->device);
1642 /* if we have subwindows in the region we have to unmap them */
1643 redisplay_unmap_subwindows_maybe (f, x, y, width, height);
1645 /* #### This isn't quite right for when this function is called
1646 from the toolbar code. */
1648 /* Don't use a backing pixmap in the border area */
1649 if (x >= FRAME_LEFT_BORDER_END (f)
1650 && x < FRAME_RIGHT_BORDER_START (f)
1651 && y >= FRAME_TOP_BORDER_END (f)
1652 && y < FRAME_BOTTOM_BORDER_START (f))
1658 temp = WINDOW_FACE_CACHEL_BACKGROUND_PIXMAP (w, findex);
1660 if (IMAGE_INSTANCEP (temp)
1661 && IMAGE_INSTANCE_PIXMAP_TYPE_P (XIMAGE_INSTANCE (temp)))
1663 /* #### maybe we could implement such that a string
1664 can be a background pixmap? */
1665 background_pixmap = temp;
1670 temp = FACE_BACKGROUND_PIXMAP (Vdefault_face, locale);
1672 if (IMAGE_INSTANCEP (temp)
1673 && IMAGE_INSTANCE_PIXMAP_TYPE_P (XIMAGE_INSTANCE (temp)))
1675 background_pixmap = temp;
1680 if (!UNBOUNDP (background_pixmap) &&
1681 XIMAGE_INSTANCE_PIXMAP_DEPTH (background_pixmap) == 0)
1685 fcolor = WINDOW_FACE_CACHEL_FOREGROUND (w, findex);
1686 bcolor = WINDOW_FACE_CACHEL_BACKGROUND (w, findex);
1690 fcolor = FACE_FOREGROUND (Vdefault_face, locale);
1691 bcolor = FACE_BACKGROUND (Vdefault_face, locale);
1697 WINDOW_FACE_CACHEL_BACKGROUND (w, findex) :
1698 FACE_BACKGROUND (Vdefault_face, locale));
1702 if (UNBOUNDP (background_pixmap))
1703 background_pixmap = Qnil;
1705 DEVMETH (d, clear_region,
1706 (locale, d, f, findex, x, y, width, height, fcolor, bcolor, background_pixmap));
1709 /****************************************************************************
1710 redisplay_clear_clipped_region
1712 Clear the area in the dest display_box not covered by the src
1713 display_glyph_area using the given face. This is a common occurrence
1714 for images shorter than the display line. Clipping can be played
1715 around with by altering these. glyphsrc should be normalized.
1716 ****************************************************************************/
1718 redisplay_clear_clipped_region (Lisp_Object window, face_index findex,
1719 struct display_box* dest, struct display_glyph_area* glyphsrc,
1720 int fullheight_p, Lisp_Object ignored_subwindow)
1722 /* assume dest->xpos >= 0 */
1724 struct frame* f = XFRAME (XWINDOW (window)->frame);
1726 if (glyphsrc->xoffset > 0)
1728 clear_x = dest->xpos + glyphsrc->xoffset;
1732 clear_x = dest->xpos;
1735 /* If we need the whole height cleared then just do it. */
1738 redisplay_clear_region (window, findex, clear_x, dest->ypos,
1739 glyphsrc->width, dest->height);
1743 int yoffset = (glyphsrc->yoffset > 0 ? glyphsrc->yoffset : 0);
1745 /* We need to make sure that subwindows are unmapped from the
1747 redisplay_unmap_subwindows_except_us (f, clear_x, dest->ypos,
1748 glyphsrc->width, dest->height,
1750 /* first the top box */
1753 redisplay_clear_region (window, findex, clear_x, dest->ypos,
1754 glyphsrc->width, yoffset);
1757 /* Then the bottom box */
1758 if (yoffset + glyphsrc->height < dest->height)
1760 redisplay_clear_region (window, findex, clear_x,
1761 dest->ypos + yoffset + glyphsrc->height,
1763 dest->height - (yoffset + glyphsrc->height));
1769 /*****************************************************************************
1770 redisplay_normalize_glyph_area
1771 redisplay_normalize_display_box
1773 Calculate the visible box for displaying glyphsrc in dest.
1775 display_box and display_glyph_area are used to represent an area to
1776 displayed and where to display it. Using these two structures all
1777 combinations of clipping and position can be accommodated.
1781 xpos - absolute horizontal position of area.
1783 ypos - absolute vertical position of area.
1785 glyphsrc - display_glyph_area
1787 xoffset - horizontal offset of the glyph, +ve means display
1788 the glyph with the x position offset by xoffset, -ve means
1789 display starting xoffset into the glyph.
1791 yoffset - vertical offset of the glyph, +ve means display the
1792 glyph with y position offset by yoffset, -ve means display
1793 starting xoffset into the glyph.
1795 ****************************************************************************/
1797 redisplay_normalize_glyph_area (struct display_box* dest,
1798 struct display_glyph_area* glyphsrc)
1800 if (dest->xpos + glyphsrc->xoffset > dest->xpos + dest->width
1802 dest->ypos + glyphsrc->yoffset > dest->ypos + dest->height
1804 -glyphsrc->xoffset >= glyphsrc->width
1806 -glyphsrc->yoffset >= glyphsrc->height
1808 /* #### Not sure why this wasn't coped with before but normalizing
1809 to zero width or height is definitely wrong. */
1810 (dest->xpos + glyphsrc->xoffset + glyphsrc->width > dest->xpos + dest->width
1812 dest->width - glyphsrc->xoffset <= 0)
1814 (dest->ypos + glyphsrc->yoffset + glyphsrc->height > dest->ypos + dest->height
1816 dest->height - glyphsrc->yoffset <= 0))
1818 /* It's all clipped out */
1822 /* Horizontal offsets. This works because xoffset can be -ve as well
1823 as +ve. When we enter this function the glyphsrc width and
1824 height are set to the actual glyph width and height irrespective
1825 of how much can be displayed. We are trying to clip both the
1826 offset into the image and the rightmost bounding box. Its
1827 possible for the glyph width to be much larger than the area we
1828 are displaying into (e.g. a large glyph in a small frame). */
1829 if (dest->xpos + glyphsrc->xoffset + glyphsrc->width > dest->xpos + dest->width)
1831 /* glyphsrc offset is +ve we are trying to display offset from the
1832 origin (the bounding box contains some space and then the
1833 glyph). At most the width we want to display is dest->width -
1834 glyphsrc->xoffset. */
1835 if (glyphsrc->xoffset > 0)
1836 glyphsrc->width = dest->width - glyphsrc->xoffset;
1837 /* glyphsrc offset is -ve we are trying to display hard up
1838 against the dest corner inset into the glyphsrc by
1840 else if (glyphsrc->xoffset < 0)
1842 glyphsrc->width += glyphsrc->xoffset;
1843 glyphsrc->width = min (glyphsrc->width, dest->width);
1846 glyphsrc->width = dest->width;
1849 else if (glyphsrc->xoffset < 0)
1850 glyphsrc->width += glyphsrc->xoffset;
1852 /* Vertical offsets. This works because yoffset can be -ve as well as +ve */
1853 if (dest->ypos + glyphsrc->yoffset + glyphsrc->height > dest->ypos + dest->height)
1855 if ((glyphsrc->yoffset > 0) && (dest->height > glyphsrc->yoffset))
1856 glyphsrc->height = dest->height - glyphsrc->yoffset;
1857 else if (glyphsrc->yoffset < 0)
1859 glyphsrc->height += glyphsrc->yoffset;
1860 glyphsrc->height = min (glyphsrc->height, dest->height);
1863 glyphsrc->height = dest->height;
1866 else if (glyphsrc->yoffset < 0)
1867 glyphsrc->height += glyphsrc->yoffset;
1873 redisplay_normalize_display_box (struct display_box* dest,
1874 struct display_glyph_area* glyphsrc)
1876 /* Adjust the destination area. At the end of this the destination
1877 area will exactly enclose the glyph area. The only remaining
1878 adjustment will be offsets into the glyph area. */
1880 /* Horizontal adjustment. */
1881 if (glyphsrc->xoffset > 0)
1883 dest->xpos += glyphsrc->xoffset;
1884 dest->width -= glyphsrc->xoffset;
1885 glyphsrc->xoffset = 0;
1888 glyphsrc->xoffset = -glyphsrc->xoffset;
1890 if (glyphsrc->width < dest->width)
1891 dest->width = glyphsrc->width;
1893 /* Vertical adjustment. */
1894 if (glyphsrc->yoffset > 0)
1896 dest->ypos += glyphsrc->yoffset;
1897 dest->height -= glyphsrc->yoffset;
1898 glyphsrc->yoffset = 0;
1901 glyphsrc->yoffset = -glyphsrc->yoffset;
1903 if (glyphsrc->height < dest->height)
1904 dest->height = glyphsrc->height;
1907 /*****************************************************************************
1908 redisplay_display_boxes_in_window_p
1910 Determine whether the required display_glyph_area is completely inside
1911 the window. -1 means the display_box is not in the window. 1 means the
1912 display_box and the display_glyph_area are in the window. 0 means
1913 the display_box is in the window but the display_glyph_area is not.
1914 ****************************************************************************/
1916 redisplay_display_boxes_in_window_p (struct window* w,
1917 struct display_box* db,
1918 struct display_glyph_area* dga)
1920 int left = WINDOW_TEXT_LEFT (w);
1921 int right = WINDOW_TEXT_RIGHT (w);
1922 int top = WINDOW_TEXT_TOP (w);
1923 int bottom = WINDOW_TEXT_BOTTOM (w);
1925 if (db->xpos < left || db->ypos < top
1926 || db->xpos + db->width > right
1927 || db->ypos + db->height > bottom)
1928 /* We are not displaying in a window at all */
1931 if (db->xpos + dga->xoffset >= left
1933 db->ypos + dga->yoffset >= top
1935 db->xpos + dga->xoffset + dga->width <= right
1937 db->ypos + dga->yoffset + dga->height <= bottom)
1943 /*****************************************************************************
1944 redisplay_calculate_display_boxes
1946 Convert from rune/display_line co-ordinates to display_box
1948 ****************************************************************************/
1950 redisplay_calculate_display_boxes (struct display_line *dl, int xpos,
1951 int xoffset, int yoffset, int start_pixpos,
1952 int width, struct display_box* dest,
1953 struct display_glyph_area* src)
1956 dest->ypos = DISPLAY_LINE_YPOS (dl);
1957 dest->width = width;
1958 dest->height = DISPLAY_LINE_HEIGHT (dl);
1960 src->xoffset = -xoffset;
1964 src->yoffset = -dl->top_clip + yoffset;
1966 if (start_pixpos >=0 && start_pixpos > xpos)
1968 /* Oops, we're asking for a start outside of the displayable
1970 if (start_pixpos > xpos + width)
1972 dest->xpos = start_pixpos;
1973 dest->width -= (start_pixpos - xpos);
1974 /* Offsets are -ve when we want to clip pixels off the displayed
1976 src->xoffset -= (start_pixpos - xpos);
1982 /*****************************************************************************
1983 redisplay_clear_top_of_window
1985 If window is topmost, clear the internal border above it.
1986 ****************************************************************************/
1988 redisplay_clear_top_of_window (struct window *w)
1991 XSETWINDOW (window, w);
1993 if (!NILP (Fwindow_highest_p (window)))
1995 struct frame *f = XFRAME (w->frame);
1996 int x, y, width, height;
1999 width = w->pixel_width;
2001 if (window_is_leftmost (w))
2003 x -= FRAME_BORDER_WIDTH (f);
2004 width += FRAME_BORDER_WIDTH (f);
2006 if (window_is_rightmost (w))
2007 width += FRAME_BORDER_WIDTH (f);
2009 y = FRAME_TOP_BORDER_START (f) - 1;
2010 height = FRAME_BORDER_HEIGHT (f) + 1;
2012 redisplay_clear_region (window, DEFAULT_INDEX, x, y, width, height);
2016 /*****************************************************************************
2017 redisplay_clear_to_window_end
2019 Clear the area between ypos1 and ypos2. Each margin area and the
2020 text area is handled separately since they may each have their own
2022 ****************************************************************************/
2024 redisplay_clear_to_window_end (struct window *w, int ypos1, int ypos2)
2026 struct frame *f = XFRAME (w->frame);
2027 struct device *d = XDEVICE (f->device);
2029 if (HAS_DEVMETH_P (d, clear_to_window_end))
2030 DEVMETH (d, clear_to_window_end, (w, ypos1, ypos2));
2033 int height = ypos2 - ypos1;
2038 int bflag = 0 ; /* (window_needs_vertical_divider (w) ? 0 : 1);*/
2039 layout_bounds bounds;
2041 bounds = calculate_display_line_boundaries (w, bflag);
2042 XSETWINDOW (window, w);
2044 if (window_is_leftmost (w))
2045 redisplay_clear_region (window, DEFAULT_INDEX, FRAME_LEFT_BORDER_START (f),
2046 ypos1, FRAME_BORDER_WIDTH (f), height);
2048 if (bounds.left_in - bounds.left_out > 0)
2049 redisplay_clear_region (window,
2050 get_builtin_face_cache_index (w, Vleft_margin_face),
2051 bounds.left_out, ypos1,
2052 bounds.left_in - bounds.left_out, height);
2054 if (bounds.right_in - bounds.left_in > 0)
2055 redisplay_clear_region (window,
2057 bounds.left_in, ypos1,
2058 bounds.right_in - bounds.left_in, height);
2060 if (bounds.right_out - bounds.right_in > 0)
2061 redisplay_clear_region (window,
2062 get_builtin_face_cache_index (w, Vright_margin_face),
2063 bounds.right_in, ypos1,
2064 bounds.right_out - bounds.right_in, height);
2066 if (window_is_rightmost (w))
2067 redisplay_clear_region (window, DEFAULT_INDEX, FRAME_RIGHT_BORDER_START (f),
2068 ypos1, FRAME_BORDER_WIDTH (f), height);
2073 /*****************************************************************************
2074 redisplay_clear_bottom_of_window
2076 Clear window from right below the last display line to right above
2077 the modeline. The calling function can limit the area actually
2078 erased by setting min_start and/or max_end to positive values.
2079 ****************************************************************************/
2081 redisplay_clear_bottom_of_window (struct window *w, display_line_dynarr *ddla,
2082 int min_start, int max_end)
2084 struct frame *f = XFRAME (w->frame);
2086 int ddla_len = Dynarr_length (ddla);
2088 ypos2 = WINDOW_TEXT_BOTTOM (w);
2089 #ifdef HAVE_SCROLLBARS
2090 /* This adjustment is to catch the intersection of any scrollbars. */
2091 if (f->windows_structure_changed && NILP (w->scrollbar_on_top_p))
2092 ypos2 += window_scrollbar_height (w);
2097 if (ddla_len == 1 && Dynarr_atp (ddla, 0)->modeline)
2099 ypos1 = WINDOW_TEXT_TOP (w);
2100 #ifdef HAVE_SCROLLBARS
2101 /* This adjustment is to catch the intersection of any scrollbars. */
2102 if (f->windows_structure_changed && !NILP (w->scrollbar_on_top_p))
2103 ypos1 -= window_scrollbar_height (w);
2108 struct display_line *dl = Dynarr_atp (ddla, ddla_len - 1);
2109 ypos1 = dl->ypos + dl->descent - dl->clip;
2113 ypos1 = WINDOW_TEXT_TOP (w);
2115 /* #### See if this can be made conditional on the frame
2117 if (MINI_WINDOW_P (w))
2118 ypos2 += FRAME_BORDER_HEIGHT (f);
2120 if (min_start >= 0 && ypos1 < min_start)
2122 if (max_end >= 0 && ypos2 > max_end)
2128 redisplay_clear_to_window_end (w, ypos1, ypos2);
2131 /*****************************************************************************
2132 redisplay_update_line
2134 This is used during incremental updates to update a single line and
2135 correct the offsets on all lines below it. At the moment
2136 update_values is false if we are only updating the modeline.
2137 ****************************************************************************/
2139 redisplay_update_line (struct window *w, int first_line, int last_line,
2142 struct frame *f = XFRAME (w->frame);
2143 struct device *d = XDEVICE (f->device);
2145 display_line_dynarr *cdla = window_display_lines (w, CURRENT_DISP);
2146 display_line_dynarr *ddla = window_display_lines (w, DESIRED_DISP);
2148 MAYBE_DEVMETH (d, window_output_begin, (w));
2150 while (first_line <= last_line)
2152 Charcount old_len = (Dynarr_atp (cdla, first_line)->end_bufpos -
2153 Dynarr_atp (cdla, first_line)->bufpos);
2154 Charcount new_len = (Dynarr_atp (ddla, first_line)->end_bufpos -
2155 Dynarr_atp (ddla, first_line)->bufpos);
2157 assert (Dynarr_length (cdla) == Dynarr_length (ddla));
2159 /* Output the changes. */
2160 output_display_line (w, cdla, ddla, first_line, -1, -1);
2162 /* Update the offsets. */
2165 int cur_line = first_line + 1;
2166 while (cur_line < Dynarr_length (cdla))
2168 Dynarr_atp (cdla, cur_line)->offset += (new_len - old_len);
2169 Dynarr_atp (ddla, cur_line)->offset += (new_len - old_len);
2174 /* Update the window_end_pos and other settings. */
2177 w->window_end_pos[CURRENT_DISP] -= (new_len - old_len);
2179 if (Dynarr_atp (ddla, first_line)->cursor_elt != -1)
2181 w->last_point_x[CURRENT_DISP] = w->last_point_x[DESIRED_DISP];
2182 w->last_point_y[CURRENT_DISP] = w->last_point_y[DESIRED_DISP];
2189 /* Update the window max line length. We have to scan the entire
2190 set of display lines otherwise we might not detect if the max is
2191 supposed to shrink. */
2196 w->max_line_len = 0;
2197 while (line < Dynarr_length (ddla))
2199 struct display_line *dl = Dynarr_atp (ddla, line);
2202 w->max_line_len = max (dl->num_chars, w->max_line_len);
2208 w->last_modified[CURRENT_DISP] = w->last_modified[DESIRED_DISP];
2209 w->last_facechange[CURRENT_DISP] = w->last_facechange[DESIRED_DISP];
2210 Fset_marker (w->last_point[CURRENT_DISP],
2211 Fmarker_position (w->last_point[DESIRED_DISP]), w->buffer);
2212 Fset_marker (w->last_start[CURRENT_DISP],
2213 Fmarker_position (w->last_start[DESIRED_DISP]), w->buffer);
2215 /* We don't bother updating the vertical scrollbars here. This
2216 gives us a performance increase while having minimal loss of
2217 quality to the scrollbar slider size and position since when this
2218 function is called we know that the changes to the buffer were
2219 very localized. We have to update the horizontal scrollbars,
2220 though, because this routine could cause a change which has a
2221 larger impact on their sizing. */
2222 /* #### See if we can get away with only calling this if
2223 max_line_len is greater than the window_char_width. */
2224 /* #### BILL!!! Should we do this for GTK as well? */
2225 #if defined(HAVE_SCROLLBARS) && defined(HAVE_X_WINDOWS)
2227 extern int stupid_vertical_scrollbar_drag_hack;
2229 update_window_scrollbars (w, NULL, 1, stupid_vertical_scrollbar_drag_hack);
2230 stupid_vertical_scrollbar_drag_hack = 1;
2234 redisplay_redraw_cursor (f, 0);
2235 MAYBE_DEVMETH (d, window_output_end, (w));
2238 /*****************************************************************************
2239 redisplay_output_window
2241 For the given window W, ensure that the current display lines are
2242 equal to the desired display lines, outputing changes as necessary.
2244 #### Fuck me. This just isn't going to cut it for tty's. The output
2245 decisions for them must be based on the contents of the entire frame
2246 because that is how the available output capabilities think. The
2247 solution is relatively simple. Create redisplay_output_frame. This
2248 will basically merge all of the separate window display structs into
2249 a single one for the frame. This combination structure will be able
2250 to be passed to the same output_display_line which works for windows
2251 on X frames and the right things will happen. It just takes time to
2253 ****************************************************************************/
2255 redisplay_output_window (struct window *w)
2257 struct frame *f = XFRAME (w->frame);
2258 struct device *d = XDEVICE (f->device);
2260 display_line_dynarr *cdla = window_display_lines (w, CURRENT_DISP);
2261 display_line_dynarr *ddla = window_display_lines (w, DESIRED_DISP);
2263 int cdla_len = Dynarr_length (cdla);
2264 int ddla_len = Dynarr_length (ddla);
2267 int need_to_clear_bottom = 0;
2268 int need_to_clear_start = -1;
2269 int need_to_clear_end = -1;
2271 /* Backgrounds may have changed or windows may have gone away
2272 leaving dividers lying around. */
2273 if (f->faces_changed
2274 || f->windows_structure_changed
2275 || w->shadow_thickness_changed)
2276 need_to_clear_bottom = 1;
2278 /* The first thing we do is determine if we are going to need to
2279 clear the bottom of the window. We only need to do this if the
2280 bottom of the current display lines is below the bottom of the
2281 desired display lines. Note that the number of lines is
2282 irrelevant. Only the position matters. We also clear to the
2283 bottom of the window if the modeline has shifted position. */
2284 /* #### We can't blindly not clear the bottom if f->clear is true
2285 since there might be a window-local background. However, for
2286 those cases where there isn't, clearing the end of the window in
2288 if (!need_to_clear_bottom)
2290 struct display_line *cdl, *ddl;
2292 /* If the modeline has changed position or size, clear the bottom
2294 if (!need_to_clear_bottom)
2299 cdl = Dynarr_atp (cdla, 0);
2301 ddl = Dynarr_atp (ddla, 0);
2304 need_to_clear_bottom = 1;
2305 else if ((!cdl->modeline && ddl->modeline)
2306 || (cdl->modeline && !ddl->modeline))
2307 need_to_clear_bottom = 1;
2308 else if (cdl->ypos != ddl->ypos ||
2309 cdl->ascent != ddl->ascent ||
2310 cdl->descent != ddl->descent ||
2311 cdl->clip != ddl->clip)
2312 need_to_clear_bottom = 1;
2314 /* #### This kludge is to make sure the modeline shadows get
2315 redrawn if the modeline position shifts. */
2316 if (need_to_clear_bottom)
2317 w->shadow_thickness_changed = 1;
2320 if (!need_to_clear_bottom)
2325 cdl = Dynarr_atp (cdla, cdla_len - 1);
2327 ddl = Dynarr_atp (ddla, ddla_len - 1);
2330 need_to_clear_bottom = 1;
2333 int cdl_bottom, ddl_bottom;
2335 cdl_bottom = cdl->ypos + cdl->descent;
2336 ddl_bottom = ddl->ypos + ddl->descent;
2338 if (cdl_bottom > ddl_bottom)
2340 need_to_clear_bottom = 1;
2341 need_to_clear_start = ddl_bottom;
2342 need_to_clear_end = cdl_bottom;
2348 /* Perform any output initialization. */
2349 MAYBE_DEVMETH (d, window_output_begin, (w));
2351 /* If the window's structure has changed clear the internal border
2352 above it if it is topmost (the function will check). */
2353 if (f->windows_structure_changed || f->faces_changed)
2354 redisplay_clear_top_of_window (w);
2356 /* Output each line. */
2357 for (line = 0; line < Dynarr_length (ddla); line++)
2359 output_display_line (w, cdla, ddla, line, -1, -1);
2362 /* If the number of display lines has shrunk, adjust. */
2363 if (cdla_len > ddla_len)
2365 Dynarr_length (cdla) = ddla_len;
2368 /* Output a vertical divider between windows, if necessary. */
2369 if (window_needs_vertical_divider (w)
2370 && (f->windows_structure_changed || f->clear))
2372 MAYBE_DEVMETH (d, output_vertical_divider, (w, f->windows_structure_changed));
2375 /* Clear the rest of the window, if necessary. */
2376 if (need_to_clear_bottom)
2378 redisplay_clear_bottom_of_window (w, ddla, need_to_clear_start,
2382 w->window_end_pos[CURRENT_DISP] = w->window_end_pos[DESIRED_DISP];
2383 Fset_marker (w->start[CURRENT_DISP],
2384 make_int (marker_position (w->start[DESIRED_DISP])),
2386 Fset_marker (w->pointm[CURRENT_DISP],
2387 make_int (marker_position (w->pointm[DESIRED_DISP])),
2389 w->last_modified[CURRENT_DISP] = w->last_modified[DESIRED_DISP];
2390 w->last_facechange[CURRENT_DISP] = w->last_facechange[DESIRED_DISP];
2391 Fset_marker (w->last_start[CURRENT_DISP],
2392 Fmarker_position (w->last_start[DESIRED_DISP]), w->buffer);
2393 Fset_marker (w->last_point[CURRENT_DISP],
2394 Fmarker_position (w->last_point[DESIRED_DISP]), w->buffer);
2395 w->last_point_x[CURRENT_DISP] = w->last_point_x[DESIRED_DISP];
2396 w->last_point_y[CURRENT_DISP] = w->last_point_y[DESIRED_DISP];
2397 w->shadow_thickness_changed = 0;
2399 set_window_display_buffer (w, XBUFFER (w->buffer));
2400 find_window_mirror (w)->truncate_win = window_truncation_on (w);
2402 /* Overkill on invalidating the cache. It is very bad for it to not
2403 get invalidated when it should be. */
2404 INVALIDATE_DEVICE_PIXEL_TO_GLYPH_CACHE (d);
2406 redisplay_redraw_cursor (f, 0);
2407 MAYBE_DEVMETH (d, window_output_end, (w));
2409 #ifdef HAVE_SCROLLBARS
2410 update_window_scrollbars (w, NULL, !MINI_WINDOW_P (w), 0);
2414 /*****************************************************************************
2417 Draw a 3d border around the modeline on window W.
2418 ****************************************************************************/
2420 bevel_modeline (struct window *w, struct display_line *dl)
2422 struct frame *f = XFRAME (w->frame);
2423 struct device *d = XDEVICE (f->device);
2424 int x, y, width, height;
2425 int shadow_thickness = MODELINE_SHADOW_THICKNESS (w);
2426 enum edge_style style;
2428 x = WINDOW_MODELINE_LEFT (w);
2429 width = WINDOW_MODELINE_RIGHT (w) - x;
2430 y = dl->ypos - dl->ascent - shadow_thickness;
2431 height = dl->ascent + dl->descent + 2 * shadow_thickness;
2433 if (XINT (w->modeline_shadow_thickness) < 0)
2435 style = EDGE_BEVEL_IN;
2439 style = EDGE_BEVEL_OUT;
2442 MAYBE_DEVMETH (d, bevel_area,
2443 (w, MODELINE_INDEX, x, y, width, height, shadow_thickness,