1 /* Redisplay data structures.
2 Copyright (C) 1994, 1995 Board of Trustees, University of Illinois.
3 Copyright (C) 1996 Chuck Thompson.
4 Copyright (C) 1995, 1996 Ben Wing.
6 This file is part of SXEmacs
8 SXEmacs is free software: you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation, either version 3 of the License, or
11 (at your option) any later version.
13 SXEmacs is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>. */
22 /* Synched up with: Not in FSF. */
24 #ifndef INCLUDED_redisplay_h_
25 #define INCLUDED_redisplay_h_
27 /* Redisplay DASSERT types */
29 #define DB_DISP_TEXT_LAYOUT 2
30 #define DB_DISP_REDISPLAY 4
32 /* These are the possible return values from pixel_to_glyph_translation. */
33 #define OVER_MODELINE 0
35 #define OVER_OUTSIDE 2
36 #define OVER_NOTHING 3
38 #define OVER_TOOLBAR 5
39 #define OVER_V_DIVIDER 6
43 /* Imagine that the text in the buffer is displayed on a piece of paper
44 the width of the frame and very very tall. The line start cache is
45 an array of struct line_start_cache's, describing the start and
46 end buffer positions for a contiguous set of lines on that piece
49 typedef struct line_start_cache line_start_cache;
50 struct line_start_cache {
56 Dynarr_declare(line_start_cache);
57 } line_start_cache_dynarr;
59 /* The possible types of runes.
61 #### The Lisp_Glyph type is broken. There should instead be a pixmap
62 type. Currently the device-specific output routines have to worry
63 about whether the glyph is textual or not, etc. For Mule this is
64 a big problem because you might need multiple fonts to display the
65 text. It also eliminates optimizations that could come from glumping
66 the text of multiple text glyphs together -- this makes displaying
67 binary files (with lots of control chars, etc.) very very slow. */
79 #define IGNORE_CURSOR 4
81 #define DEFAULT_INDEX (face_index) 0
82 #define MODELINE_INDEX (face_index) 1
84 /* A rune is a single display element, such as a printable character
85 or pixmap. Any single character in a buffer has one or more runes
86 (or zero, if the character is invisible) corresponding to it.
87 (Printable characters typically have one rune associated with them,
88 but control characters have two -- a ^ and a letter -- and other
89 non-printing characters (those displayed in octal) have four. */
91 /* WARNING! In compare_runes (one of the most heavily used functions)
92 two runes are compared. So please be careful with changes to this
93 structure. See comments in compare_runes.
95 #### This should really be made smaller.
98 typedef struct rune rune;
100 face_index findex; /* face rune is displayed with. The
101 face_index is an index into a
102 window-specific array of face cache
103 elements. Each face cache element
104 corresponds to one "merged face"
105 (the result of merging all the
106 faces that overlap the rune) and
107 contains the instance values for
108 each of the face properties in this
109 particular window. */
111 Bufpos bufpos; /* buffer position this rune is displaying;
112 for the modeline, the value here is a
113 Charcount, but who's looking? */
114 Bufpos endpos; /* if set this rune covers a range of pos */
115 /* #### Chuck, what does it mean for a rune
116 to cover a range of pos? I don't get
118 /* #### This isn't used as an rvalue anywhere!
121 short xpos; /* horizontal starting position in pixels */
122 short width; /* pixel width of rune */
124 unsigned char cursor_type; /* is this rune covered by the cursor? */
125 unsigned char type; /* type of rune object */
126 /* We used to do bitfields here, but if I
127 (JV) count correctly that doesn't matter
128 for the size of the structure. All the bit
129 fiddling _does_ slow down redisplay by
130 about 10%. So don't do that */
132 union { /* Information specific to the type of rune */
133 /* #### Glyphs are rare. Is it really necessary to waste 8 bytes on every
138 Lisp_Object extent; /* extent rune is attached to, if any.
139 If this is a rune in the modeline
140 then this might be nil. */
142 int ascent; /* Ascent of this glyph, in pixels. */
143 int descent; /* Descent of this glyph, in pixels. */
144 int yoffset; /* Offset from line top to reach glyph top */
145 int xoffset; /* Number of pixels that need to be
146 chopped off the left of the glyph.
147 This has the effect of shifting the
148 glyph to the left while still clipping
154 Emchar ch; /* Character of this rune. */
159 short thickness; /* how thick to make hline */
160 short yoffset; /* how far down from top of line to put top */
162 } object; /* actual rune object */
166 Dynarr_declare(rune);
169 /* These must have distinct values. Note that the ordering actually
170 represents priority levels. TEXT has the lowest priority level. */
176 RIGHT_OUTSIDE_MARGIN,
180 /* A display block represents a run of text on a single line.
181 Apparently there is only one display block per line for each
182 of the types listed in `enum display_type'.
184 A display block consists mostly of an array of runes, one per
185 atomic display element (printable character, pixmap, etc.). */
187 /* #### Yuckity yuckity yuck yuck yuck yuck yuck!!
189 Chuck, I think you should redo this. It should not be the
190 responsibility of the device-specific code to worry about
191 the different faces. The generic stuff in redisplay-output.c
192 should glump things up into sub-blocks, each of which
193 corresponds to a single pixmap or a single run of text in
196 It might still make sense for the device-specific output routine
197 to get passed an entire display line. That way, it can make
198 calls to XDrawText() (which draws multiple runs of single-font
199 data) instead of XDrawString(). The reason for this is to
200 reduce the amount of X traffic, which will help things significantly
203 typedef struct display_block display_block;
204 struct display_block {
205 enum display_type type; /* type of display block */
207 int start_pos; /* starting pixel position of block */
208 int end_pos; /* ending pixel position of block */
210 rune_dynarr *runes; /* Dynamic array of runes */
214 Dynarr_declare(display_block);
215 } display_block_dynarr;
217 typedef struct layout_bounds_type {
226 typedef struct glyph_block glyph_block;
231 face_index findex; /* Only used by margin routines. */
232 int active; /* For begin/end glyph indicates type,
233 otherwise for margin routines. */
234 int width; /* Only used by margin routines. */
238 Dynarr_declare(glyph_block);
239 } glyph_block_dynarr;
241 /*************************************************************************/
243 /*************************************************************************/
245 /* Modeline commentary: IMO the modeline is handled very badly, we
246 special case virtually *everything* in the redisplay routines for
247 the modeline. The fact that dl->bufpos can be either a buffer
248 position or a char count highlights this. There is no abstraction at
249 all that I can find and it means that the code is made very ugly as
250 a result. Either we should treat the modeline *entirely* separately,
251 or we should abstract to something that applies equally well to the
252 modeline and to buffer text, the things are not enormously different
253 after all and handling them identically at some level would
254 eliminate some bugs that still exist (mainly to do with modeline
255 handling). This problem doesn't help trying to implement gutters
256 which are somewhere in between buffer text and modeline text.
258 Redisplay commentary: Everything in redisplay is tied very tightly
259 to the things that are being displayed, and the context,
260 e.g. buffers and windows. According to Chuck this is so that we can
261 get speed, which seems fine to me, however this usage is extended
262 too far down the redisplay routines IMO. At some level there should
263 be functions that know how to display strings with extents and
264 faces, regardless of buffer etc. After all the window system does
265 not care. <andy@xemacs.org> */
267 typedef struct display_line display_line;
268 struct display_line {
269 short ypos; /* vertical position in pixels
270 of the baseline for this line. */
271 unsigned short ascent, descent; /* maximum values for this line.
272 The ascent is the number of
273 pixels above the baseline, and
274 the descent is the number of
275 pixels below the baseline.
276 The descent includes the baseline
277 pixel-row itself, I think. */
278 unsigned short clip; /* amount of bottom of line to clip
280 unsigned short top_clip; /* amount of top of line to clip
282 Bufpos bufpos; /* first buffer position on line */
283 Bufpos end_bufpos; /* last buffer position on line */
284 Charcount offset; /* adjustment to bufpos vals */
285 Charcount num_chars; /* # of chars on line
286 including expansion of tabs
288 int cursor_elt; /* rune block of TEXT display
289 block cursor is at or -1 */
290 char used_prop_data; /* can't incrementally update if line
291 used propagation data */
293 layout_bounds bounds; /* line boundary positions */
295 char modeline; /* t if this line is a modeline */
297 char line_continuation; /* t if this line continues to
298 next display line. */
300 /* Dynamic array of display blocks */
301 display_block_dynarr *display_blocks;
303 /* Dynamic arrays of left and right glyph blocks */
304 glyph_block_dynarr *left_glyphs;
305 glyph_block_dynarr *right_glyphs;
307 face_index left_margin_findex;
308 face_index right_margin_findex;
309 face_index default_findex;
312 #define DISPLAY_LINE_HEIGHT(dl) \
313 (dl->ascent + dl->descent - (dl->clip + dl->top_clip))
314 #define DISPLAY_LINE_YPOS(dl) \
315 (dl->ypos - (dl->ascent - dl->top_clip))
316 #define DISPLAY_LINE_YEND(dl) \
317 ((dl->ypos + dl->descent) - dl->clip)
320 Dynarr_declare(display_line);
321 } display_line_dynarr;
323 /* The following two structures are used to represent an area to
324 displayed and where to display it. Using these two structures all
325 combinations of clipping and position can be accommodated. */
327 /* This represents an area to be displayed into. */
328 typedef struct display_box display_box;
330 int xpos; /* absolute horizontal position of area */
331 int ypos; /* absolute vertical position of area */
335 /* This represents the area from a glyph to be displayed. */
336 typedef struct display_glyph_area display_glyph_area;
337 struct display_glyph_area {
338 int xoffset; /* horizontal offset of the glyph, +ve means
339 display the glyph with x offset by xoffset,
340 -ve means display starting xoffset into the
342 int yoffset; /* vertical offset of the glyph, +ve means
343 display the glyph with y offset by yoffset,
344 -ve means display starting xoffset into the
346 int width, height; /* width and height of glyph to display. */
349 /* It could be argued that the following two structs belong in
350 extents.h, but they're only used by redisplay and it simplifies
351 the header files to put them here. */
354 Dynarr_declare(EXTENT);
357 struct font_metric_info {
359 int height; /* always ascent + descent; for convenience */
366 /* NOTE NOTE NOTE: Currently the positions in an extent fragment
367 structure are Bytind's, not Bufpos's. This could change. */
369 struct extent_fragment {
370 Lisp_Object object; /* buffer or string */
373 EXTENT_dynarr *extents;
374 glyph_block_dynarr *glyphs;
375 unsigned int invisible:1;
376 unsigned int invisible_ellipses:1;
377 unsigned int previously_invisible:1;
378 unsigned int invisible_ellipses_already_displayed:1;
383 #define EDGE_BOTTOM 4
385 #define EDGE_ALL (EDGE_TOP | EDGE_LEFT | EDGE_BOTTOM | EDGE_RIGHT)
387 /*************************************************************************/
389 /*************************************************************************/
391 /* Quick flags to signal redisplay. redisplay() sets them all to 0
392 when it finishes. If none of them are set when it starts, it
393 assumes that nothing needs to be done. Functions that make a change
394 that is (potentially) visible on the screen should set the
397 If any of these flags are set, redisplay will look more carefully
398 to see if anything has really changed. */
400 /* Nonzero if the contents of a buffer have changed since the last time
401 redisplay completed. */
402 extern int buffers_changed;
403 extern int buffers_changed_set;
405 /* Nonzero if head_clip or tail_clip of a buffer has changed
406 since last redisplay that finished. */
407 extern int clip_changed;
408 extern int clip_changed_set;
410 /* Nonzero if any extent has changed since the last time redisplay completed. */
411 extern int extents_changed;
412 extern int extents_changed_set;
414 /* Nonzero if any face has changed since the last time redisplay completed. */
415 extern int faces_changed;
417 /* Nonzero means one or more frames have been marked as garbaged. */
418 extern int frame_changed;
420 /* True if any of the builtin display glyphs (continuation,
421 hscroll, control-arrow, etc) is in need of updating
423 extern int glyphs_changed;
424 extern int glyphs_changed_set;
426 /* True if any displayed subwindow is in need of updating
428 extern int subwindows_changed;
429 extern int subwindows_changed_set;
431 /* True if any displayed subwindow is in need of updating
433 extern int subwindows_state_changed;
434 extern int subwindows_state_changed_set;
436 /* True if an icon is in need of updating somewhere. */
437 extern int icon_changed;
438 extern int icon_changed_set;
440 /* True if a menubar is in need of updating somewhere. */
441 extern int menubar_changed;
442 extern int menubar_changed_set;
444 /* True iff we should redraw the modelines on the next redisplay. */
445 extern int modeline_changed;
446 extern int modeline_changed_set;
448 /* Nonzero if point has changed in some buffer since the last time
449 redisplay completed. */
450 extern int point_changed;
451 extern int point_changed_set;
453 /* Nonzero if some frame has changed its size. */
454 extern int size_changed;
456 /* Nonzero if some device has signaled that it wants to change size. */
457 extern int asynch_device_change_pending;
459 /* Nonzero if some frame has changed the layout of internal elements
460 (gutters or toolbars). */
461 extern int frame_layout_changed;
463 /* Nonzero if any toolbar has changed. */
464 extern int toolbar_changed;
465 extern int toolbar_changed_set;
467 /* Nonzero if any gutter has changed. */
468 extern int gutter_changed;
469 extern int gutter_changed_set;
471 /* Nonzero if any window has changed since the last time redisplay completed */
472 extern int windows_changed;
474 /* Nonzero if any frame's window structure has changed since the last
475 time redisplay completed. */
476 extern int windows_structure_changed;
478 /* These macros can be relatively expensive. Since they are often
479 called numerous times between each call to redisplay, we keep track
480 if each has already been called and don't bother doing most of the
481 work if it is currently set. */
483 #define MARK_TYPE_CHANGED(object) do { \
484 if (!object##_changed_set) { \
485 Lisp_Object MTC_devcons, MTC_concons; \
486 DEVICE_LOOP_NO_BREAK (MTC_devcons, MTC_concons) \
488 Lisp_Object MTC_frmcons; \
489 struct device *MTC_d = XDEVICE (XCAR (MTC_devcons)); \
490 DEVICE_FRAME_LOOP (MTC_frmcons, MTC_d) \
492 struct frame *MTC_f = XFRAME (XCAR (MTC_frmcons)); \
493 MTC_f->object##_changed = 1; \
496 MTC_d->object##_changed = 1; \
498 object##_changed = 1; \
499 object##_changed_set = 1; } \
502 #define MARK_BUFFERS_CHANGED MARK_TYPE_CHANGED (buffers)
503 #define MARK_CLIP_CHANGED MARK_TYPE_CHANGED (clip)
504 #define MARK_EXTENTS_CHANGED MARK_TYPE_CHANGED (extents)
505 #define MARK_ICON_CHANGED MARK_TYPE_CHANGED (icon)
506 #define MARK_MENUBAR_CHANGED MARK_TYPE_CHANGED (menubar)
507 #define MARK_MODELINE_CHANGED MARK_TYPE_CHANGED (modeline)
508 #define MARK_POINT_CHANGED MARK_TYPE_CHANGED (point)
509 #define MARK_TOOLBAR_CHANGED MARK_TYPE_CHANGED (toolbar)
510 #define MARK_GUTTER_CHANGED MARK_TYPE_CHANGED (gutter)
511 #define MARK_GLYPHS_CHANGED MARK_TYPE_CHANGED (glyphs)
512 #define MARK_SUBWINDOWS_CHANGED MARK_TYPE_CHANGED (subwindows)
513 #define MARK_SUBWINDOWS_STATE_CHANGED MARK_TYPE_CHANGED (subwindows_state)
515 #define CLASS_RESET_CHANGED_FLAGS(p) do { \
516 (p)->buffers_changed = 0; \
517 (p)->clip_changed = 0; \
518 (p)->extents_changed = 0; \
519 (p)->faces_changed = 0; \
520 (p)->frame_changed = 0; \
521 (p)->frame_layout_changed = 0; \
522 (p)->icon_changed = 0; \
523 (p)->menubar_changed = 0; \
524 (p)->modeline_changed = 0; \
525 (p)->point_changed = 0; \
526 (p)->toolbar_changed = 0; \
527 (p)->gutter_changed = 0; \
528 (p)->glyphs_changed = 0; \
529 (p)->subwindows_changed = 0; \
530 (p)->subwindows_state_changed = 0; \
531 (p)->windows_changed = 0; \
532 (p)->windows_structure_changed = 0; \
535 #define GLOBAL_RESET_CHANGED_FLAGS do { \
536 buffers_changed = 0; \
538 extents_changed = 0; \
540 frame_layout_changed = 0; \
542 menubar_changed = 0; \
543 modeline_changed = 0; \
545 toolbar_changed = 0; \
546 gutter_changed = 0; \
547 glyphs_changed = 0; \
548 subwindows_changed = 0; \
549 subwindows_state_changed = 0; \
550 windows_changed = 0; \
551 windows_structure_changed = 0; \
554 #define CLASS_REDISPLAY_FLAGS_CHANGEDP(p) \
555 ( (p)->buffers_changed || \
556 (p)->clip_changed || \
557 (p)->extents_changed || \
558 (p)->faces_changed || \
559 (p)->frame_changed || \
560 (p)->frame_layout_changed || \
561 (p)->icon_changed || \
562 (p)->menubar_changed || \
563 (p)->modeline_changed || \
564 (p)->point_changed || \
565 (p)->toolbar_changed || \
566 (p)->gutter_changed || \
567 (p)->glyphs_changed || \
568 (p)->size_changed || \
569 (p)->subwindows_changed || \
570 (p)->subwindows_state_changed || \
571 (p)->windows_changed || \
572 (p)->windows_structure_changed )
574 #define GLOBAL_REDISPLAY_FLAGS_CHANGEDP \
575 ( buffers_changed || \
580 frame_layout_changed || \
583 modeline_changed || \
589 subwindows_changed || \
590 subwindows_state_changed || \
592 windows_structure_changed )
594 /* Anytime a console, device or frame is added or deleted we need to reset
596 #define RESET_CHANGED_SET_FLAGS do { \
597 buffers_changed_set = 0; \
598 clip_changed_set = 0; \
599 extents_changed_set = 0; \
600 icon_changed_set = 0; \
601 menubar_changed_set = 0; \
602 modeline_changed_set = 0; \
603 point_changed_set = 0; \
604 toolbar_changed_set = 0; \
605 gutter_changed_set = 0; \
606 glyphs_changed_set = 0; \
607 subwindows_changed_set = 0; \
608 subwindows_state_changed_set = 0; \
611 /*************************************************************************/
612 /* redisplay global variables */
613 /*************************************************************************/
615 /* redisplay structure used by various utility routines. */
616 extern display_line_dynarr *cmotion_display_lines;
618 /* Nonzero means truncate lines in all windows less wide than the frame. */
619 extern int truncate_partial_width_windows;
621 /* Nonzero if we're in a display critical section. */
622 extern int in_display;
624 /* Nonzero means no need to redraw the entire frame on resuming
625 a suspended Emacs. This is useful on terminals with multiple pages,
626 where one page is used for Emacs and another for all else. */
627 extern int no_redraw_on_reenter;
629 /* Non-nil means flash the frame instead of ringing the bell. */
630 extern Lisp_Object Vvisible_bell;
632 /* Thickness of shadow border around 3D modelines. */
633 extern Lisp_Object Vmodeline_shadow_thickness;
635 /* Scroll if point lands on the bottom line and that line is partially
637 extern int scroll_on_clipped_lines;
639 extern Lisp_Object Vglobal_mode_string;
641 /* The following two variables are defined in emacs.c and are used
642 to convey information discovered on the command line way early
643 (before *anything* is initialized). */
645 /* If non-zero, a window-system was specified on the command line.
646 Defined in emacs.c. */
647 extern int display_arg;
649 /* Type of display specified. Defined in emacs.c. */
650 extern const char *display_use;
652 /* Nonzero means reading single-character input with prompt
653 so put cursor on minibuffer after the prompt. */
655 extern int cursor_in_echo_area;
657 extern Lisp_Object Qbar_cursor, Qcursor_in_echo_area, Vwindow_system;
659 extern Lisp_Object Qtop_bottom;
661 /*************************************************************************/
662 /* redisplay exported functions */
663 /*************************************************************************/
664 EXFUN(Fredraw_frame, 2);
666 int redisplay_text_width_string(struct window *w, int findex,
667 Bufbyte * nonreloc, Lisp_Object reloc,
668 Bytecount offset, Bytecount len);
669 int redisplay_frame_text_width_string(struct frame *f,
673 Bytecount offset, Bytecount len);
674 int redisplay_frame(struct frame *f, int preemption_check);
675 void redisplay(void);
676 struct display_block *get_display_block_from_line(struct display_line *dl,
677 enum display_type type);
678 layout_bounds calculate_display_line_boundaries(struct window *w, int modeline);
679 Bufpos point_at_center(struct window *w, int type, Bufpos start, Bufpos point);
680 int line_at_center(struct window *w, int type, Bufpos start, Bufpos point);
681 int window_half_pixpos(struct window *w);
682 void redisplay_echo_area(void);
683 void free_display_structs(struct window_mirror *mir);
684 void free_display_lines(display_line_dynarr * dla);
685 void mark_redisplay_structs(display_line_dynarr * dla);
686 void generate_displayable_area(struct window *w, Lisp_Object disp_string,
687 int xpos, int ypos, int width, int height,
688 display_line_dynarr * dl,
689 Bufpos start_pos, face_index default_face);
690 /* `generate_title_string' in frame.c needs this */
691 void generate_formatted_string_db(Lisp_Object format_str,
692 Lisp_Object result_str,
694 struct display_line *dl,
695 struct display_block *db,
697 int min_pixpos, int max_pixpos, int type);
698 int real_current_modeline_height(struct window *w);
699 int pixel_to_glyph_translation(struct frame *f, int x_coord,
700 int y_coord, int *col, int *row,
701 int *obj_x, int *obj_y,
702 struct window **w, Bufpos * bufpos,
703 Bufpos * closest, Charcount * modeline_closest,
704 Lisp_Object * obj1, Lisp_Object * obj2);
705 void glyph_to_pixel_translation(struct window *w, int char_x,
706 int char_y, int *pix_x, int *pix_y);
707 void mark_redisplay(void);
708 int point_in_line_start_cache(struct window *w, Bufpos point, int min_past);
709 int point_would_be_visible(struct window *w, Bufpos startp, Bufpos point);
710 Bufpos start_of_last_line(struct window *w, Bufpos startp);
711 Bufpos end_of_last_line(struct window *w, Bufpos startp);
712 Bufpos start_with_line_at_pixpos(struct window *w, Bufpos point, int pixpos);
713 Bufpos start_with_point_on_display_line(struct window *w, Bufpos point,
715 int redisplay_variable_changed(Lisp_Object sym, Lisp_Object * val,
716 Lisp_Object in_object, int flags);
717 void redisplay_glyph_changed(Lisp_Object glyph, Lisp_Object property,
720 #ifdef MEMORY_USAGE_STATS
721 int compute_display_line_dynarr_usage(display_line_dynarr * dyn,
722 struct overhead_stats *ovstats);
723 int compute_line_start_cache_dynarr_usage(line_start_cache_dynarr * dyn,
724 struct overhead_stats *ovstats);
727 /* defined in redisplay-output.c */
728 int get_next_display_block(layout_bounds bounds,
729 display_block_dynarr * dba, int start_pos,
731 void redisplay_output_layout(Lisp_Object domain,
732 Lisp_Object image_instance,
733 struct display_box *db,
734 struct display_glyph_area *dga, face_index findex,
735 int cursor_start, int cursor_width,
737 void redisplay_output_subwindow(struct window *w, Lisp_Object image_instance,
738 struct display_box *db,
739 struct display_glyph_area *dga,
740 face_index findex, int cursor_start,
741 int cursor_width, int cursor_height);
742 void redisplay_unmap_subwindows_maybe(struct frame *f, int x, int y, int width,
744 void redisplay_output_pixmap(struct window *w, Lisp_Object image_instance,
745 struct display_box *db,
746 struct display_glyph_area *dga, face_index findex,
747 int cursor_start, int cursor_width,
748 int cursor_height, int offset_bitmap);
749 int redisplay_calculate_display_boxes(struct display_line *dl, int xpos,
750 int xoffset, int yoffset,
751 int start_pixpos, int width,
752 struct display_box *dest,
753 struct display_glyph_area *src);
754 int redisplay_normalize_glyph_area(struct display_box *dest,
755 struct display_glyph_area *glyphsrc);
756 void redisplay_clear_to_window_end(struct window *w, int ypos1, int ypos2);
757 void redisplay_clear_region(Lisp_Object window, face_index findex, int x,
758 int y, int width, int height);
759 void redisplay_clear_top_of_window(struct window *w);
760 void redisplay_clear_bottom_of_window(struct window *w,
761 display_line_dynarr * ddla,
762 int min_start, int max_end);
763 void redisplay_update_line(struct window *w, int first_line,
764 int last_line, int update_values);
765 void redisplay_output_window(struct window *w);
766 void bevel_modeline(struct window *w, struct display_line *dl);
767 int redisplay_move_cursor(struct window *w, Bufpos new_point,
769 void redisplay_redraw_cursor(struct frame *f, int run_begin_end_meths);
770 void output_display_line(struct window *w, display_line_dynarr * cdla,
771 display_line_dynarr * ddla, int line,
772 int force_start, int force_end);
773 void sync_display_line_structs(struct window *w, int line, int do_blocks,
774 display_line_dynarr * cdla,
775 display_line_dynarr * ddla);
777 #endif /* INCLUDED_redisplay_h_ */