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xdisp.c: Improve doc of redisplay flags a bit

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This commit is contained in:
Stefan Monnier
2023-07-16 21:12:20 -04:00
parent a65ece8b20
commit 207cd4c235
2 changed files with 12 additions and 4 deletions
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11
src/window.h
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@@ -1114,9 +1114,11 @@ void set_window_buffer (Lisp_Object window, Lisp_Object buffer,
extern Lisp_Object echo_area_window;
/* Non-zero if we should redraw the mode lines on the next redisplay.
/* Non-zero if we should redraw the mode line*s* on the next redisplay.
Usually set to a unique small integer so we can track the main causes of
full redisplays in `redisplay--mode-lines-cause'. */
full redisplays in `redisplay--mode-lines-cause'.
Here "mode lines" includes other elements not coming from the buffer's
text, such as header-lines, tab lines, frame names, menu-bars, .... */
extern int update_mode_lines;
@@ -1134,6 +1136,11 @@ extern int windows_or_buffers_changed;
extern void wset_redisplay (struct window *w);
extern void fset_redisplay (struct frame *f);
extern void bset_redisplay (struct buffer *b);
/* Routines to indicate that the mode-lines might need to be redisplayed.
Just as for `update_mode_lines`, this includes other elements not coming
from the buffer's text, such as header-lines, tab lines, frame names,
menu-bars, .... */
extern void bset_update_mode_line (struct buffer *b);
extern void wset_update_mode_line (struct window *w);
/* Call this to tell redisplay to look for other windows than selected-window

5
src/xdisp.c
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@@ -16490,8 +16490,9 @@ redisplay_internal (void)
enum {MAX_GARBAGED_FRAME_RETRIES = 2 };
int garbaged_frame_retries = 0;
/* True means redisplay has to consider all windows on all
frames. False, only selected_window is considered. */
/* False means that only the selected_window needs to be updated.
True means that other windows may need to be updated as well,
so we need to consult `needs_no_update` for all windows. */
bool consider_all_windows_p;
/* True means redisplay has to redisplay the miniwindow. */