Add code to monitor memory allocation for bidi cache shelving.
src/xdisp.c (display_line): Release buffer allocated for shelved bidi
cache.
src/bidi.c (bidi_shelve_cache, bidi_unshelve_cache): Track total
amount allocated this far in `bidi_cache_total_alloc'.
(bidi_unshelve_cache): Accept an additional argument JUST_FREE; if
non-zero, only free the data buffer without restoring the cache
contents. All callers changed.
src/dispextern.h (bidi_unshelve_cache): Update prototype.
src/xdisp.c (SAVE_IT, pos_visible_p, move_it_in_display_line_to)
(move_it_in_display_line, move_it_to)
(move_it_vertically_backward, move_it_by_lines): Replace the call
to xfree to an equivalent call to bidi_unshelve_cache.
(move_it_in_display_line_to): Fix logic of returning
MOVE_POS_MATCH_OR_ZV in the bidi case.
Add diagnostic facility for monitoring memory allocated for cache shelving.
src/xdisp.c (display_line): Release buffer allocated for shelved bidi
cache. (Bug#9221)
src/bidi.c (bidi_shelve_cache, bidi_unshelve_cache): Track total
amount allocated this far in `bidi_cache_total_alloc'.
(bidi_unshelve_cache): Accept an additional argument JUST_FREE; if
non-zero, only free the data buffer without restoring the cache
contents. All callers changed.
src/dispextern.h (bidi_unshelve_cache): Update prototype.
src/xdisp.c (SAVE_IT, pos_visible_p, move_it_in_display_line_to)
(move_it_in_display_line, move_it_to)
(move_it_vertically_backward, move_it_by_lines): Replace the call
to xfree to an equivalent call to bidi_unshelve_cache.
(move_it_in_display_line_to): Fix logic of returning
MOVE_POS_MATCH_OR_ZV in the bidi case.
* xterm.c (x_find_topmost_parent): New function.
(x_set_frame_alpha): Find topmost parent window with
x_find_topmost_parent and set the property there also.
(handle_one_xevent): Call x_set_frame_alpha on ReparentNotify.
Fixes: debbugs:9181
* lisp/subr.el (make-composed-keymap): Move from C. Change calling
convention, and improve docstring to bring attention to a subtle point.
* lisp/minibuffer.el (completing-read-default): Adjust accordingly.
src/dispextern.h (struct bidi_it): New member disp_prop_p.
src/xdisp.c: Remove one-slot cache of display string positions.
(compute_display_string_pos): Accept an additional argument
DISP_PROP_P; callers changed. Scan at most 5K characters forward
for a display string or property. If found, set DISP_PROP_P
non-zero.
src/bidi.c (bidi_fetch_char): Accept an additional argument
DISP_PROP_P, and pass it to compute_display_string_pos. Only
handle text covered by a display string if DISP_PROP_P is returned
non-zero. All callers of bidi_fetch_char changed.
src/xdisp.c (forward_to_next_line_start): Accept additional argument
BIDI_IT_PREV, and store into it the state of the bidi iterator had
on the newline.
(reseat_at_next_visible_line_start): Use the bidi iterator state
returned by forward_to_next_line_start to restore the state of
it->bidi_it after backing up to previous newline. (Bug#9212)
* src/nsfont.m (nsfont_open): Remove assignment to voffset and
unnecessary vars hshink, expand, hd, full_height, min_height.
(nsfont_draw): Use s->ybase as baseline for glyph drawing.
* src/nsterm.h (nsfont_info): Remove voffset field.
* src/nsfont.m (nsfont_open): Use underline position provided by font,
instead of hard-coded value of 2.
(nsfont_draw): Call ns_draw_text_decoration instead.
* src/nsterm.h: Add declaration for ns_draw_text_decoration.
* src/nsterm.m (ns_draw_text_decoration): New function for drawing
underline, overline, and strike-through.
(ns_dumpglyphs_image, ns_dumpglyphs_stretch): Add call to
ns_draw_text_decoration. Change treatment of cursor drawing to
accomodate underlining, etc.
src/buffer.c (init_buffer_once, syms_of_buffer): Set
bidi-display-reordering to t by default.
doc/emacs/mule.texi (Bidirectional Editing): Document the fact that
bidi-display-reordering is t by default.
lispref/display.texi (Bidirectional Display): Document the fact that
bidi-display-reordering is t by default.
src/xdisp.c (compute_display_string_pos): Fix logic of caching
previous display string position. Initialize cached_prev_pos to -1.
Fixes slow-down at the beginning of a buffer.
src/xdisp.c (move_it_in_display_line_to): Record the best matching
position for TO_CHARPOS while scanning the line, and restore it on
exit if none of the characters scanned was an exact match. Fixes
vertical-motion and pos-visible-in-window-p under bidi redisplay
when exact match is impossible due to invisible text, and the
lines are truncated.
src/xdisp.c (move_it_in_display_line_to): Record the best matching
position for TO_CHARPOS while scanning the line, and restore it on
exit if none of the characters scanned was an exact match. Fixes
vertical-motion and pos-visible-in-window-p when exact match is
impossible due to invisible text, and the lines are truncated.
