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119 Commits

Author SHA1 Message Date
Thomas Adam
39904f7fc6 Merge branch 'obsd-master' into master 2021-02-05 14:01:23 +00:00
nicm
3dddc11603 Send Unicode directional isolate characters around horizontal pane 
borders if the terminal support UTF-8 and an extension terminfo(5)
capability "Bidi" is present. On terminals with BiDi support (ie, VTE)
this seems to be enough to display right-to-left text acceptably enough
to be usable (with some caveats about the mouse position). Requested by
and with help from Mahmoud Elagdar in GitHub issue 2425.
 2021-02-05 12:29:18 +00:00
Thomas Adam
66da51b631 Merge branch 'obsd-master' into master 2021-01-18 12:01:22 +00:00
nicm
91d112bf12 There is no need to clear every line entirely before drawing to it, this 
means moving the cursor and messes up wrapping. Better to just clear the
sections that aren't written over. GitHub issue 2537.
 2021-01-18 10:27:54 +00:00
Nicholas Marriott
680e7a382f glibc's malloc is very bad about returning memory from the kernel, add a call 
to its malloc_trim to prompt it to do so. Reported by Sarunas Valaskevicius.
 2020-10-06 08:18:42 +01:00
nicm
212c0c1f72 Do not force line width to grid width because it may need to be larger 
to accomodate a wide character. GitHub issue 2336.
 2020-08-07 07:02:57 +00:00
nicm
03b2998abe Do not take the address of a potentially unaligned member. 2020-06-05 09:35:41 +00:00
nicm
d9cd493d09 Reset wrapped flag when clearing or moving lines, GitHub issue 2215. 2020-06-04 21:41:31 +00:00
nicm
4694e9a2b6 Move the code to set up a padding cell into grid.c. 2020-06-02 20:51:46 +00:00
nicm
2a4d4bda2b Allow UTF-8 characters of width 0 to be stored, it is useful to be able 
to put padding cells in as width 0.
 2020-06-02 20:10:23 +00:00
nicm
f336599a3a Make padding cell a valid character. 2020-05-27 06:23:23 +00:00
nicm
370f0bb98d Remove leftover debug logging and fix comparison. 2020-05-26 08:56:48 +00:00
nicm
6f03e49e68 Use the internal representation for UTF-8 keys instead of wchar_t and 
drop some code only needed for that.
 2020-05-25 18:57:24 +00:00
nicm
49ec074271 Tidy up new UTF-8 code and make it more generic. 2020-05-25 18:19:29 +00:00
nicm
3a5219c6d0 Instead of storing all UTF-8 characters in the extended cell which means 
that 14 bytes are wasted for each character in the BMP, only store
characters of three bytes or less in the cell itself and store others
(outside the BMP or with combining characters) in a separate global
tree. Can reduce grid memory use for heavy Unicode users by around 30%.
 2020-05-25 09:32:10 +00:00
nicm
ecbdcc256f Add screen write flags instead of individual bits and fix line length 
calculation with padding.
 2020-05-16 16:22:01 +00:00
nicm
6ea6d46d0a Store and restore cursor position when copy mode is resized, from 
Anindya Mukherjee.
 2020-05-16 15:49:20 +00:00
nicm
5bf96c2f2c Use a grid cell not a style for the pane style. 2020-05-16 14:53:23 +00:00
nicm
c7883d5c87 Use grid_empty_line rather than memset when adding new lines on resize. 
Also remove some old test code.
 2020-04-15 12:59:20 +00:00
nicm
315961faec Some more, and use of wp->window before wp NULL check in format.c. 2020-04-09 13:53:50 +00:00
nicm
e6cddcf752 Add a -T flag to resize-pane to trim lines below the cursor, moving 
lines out of the history. GitHub issue 2134.
 2020-03-31 17:13:20 +00:00
nicm
edca27ae45 AIX colours are always stored as 90-97, not 100-107. From Johannes 
Altmanninger.
 2020-03-21 13:51:30 +00:00
nicm
ce61bf931b Do not set the history flag if there is no history. 2020-03-19 13:46:10 +00:00
nicm
7826d40ff9 Style nits in function arguments. 2019-12-03 10:47:22 +00:00
nicm
e3359f8349 Some minor performance improvements - most notably, don't search the 
input state table if the next character matches the same state as before.
 2019-09-24 20:44:58 +00:00
nicm
58bbce09e2 Remove check for same size - size has already been changed so this 
breaks reflow.
 2019-08-01 07:08:13 +00:00
nicm
b89f2f28bb Fix grid clear code to correctly clear with the default background 
colour rather than ending up with the used count higher than the total
size, GitHub issue 1829.
 2019-07-16 10:30:56 +00:00
nicm
3635b3cd6c Correctly clear underscore colour in grid_get_cell1, also fix struct 
grid_cell to avoid padding. Fixes increased memory use reported by Suraj
N Kurapati.
 2019-07-06 20:37:29 +00:00
nicm
dae2868d12 Add support for underscore colours with Setulc capability, mostly from 
Kai Moschcau.
 2019-06-27 15:17:41 +00:00
nicm
e90d4a6021 Add formats for word and line under the mouse and use them to add some 
items to the pane menu.
 2019-05-26 17:34:45 +00:00
nicm
1ee944a19d Add support for overline (SGR 53), from Ricardo Banffy. 2019-05-13 20:10:23 +00:00
nicm
ffa4d48967 Store and restore cursor across reflow by working out a position based 
on unwrapped lines, rather than a grid offset. Fixes problems reported
by Thomas Sattler and Paul de Weerd.
 2019-04-02 08:45:32 +00:00
nicm
792fcb1dbf Restore a check to stop scrolled lines becoming larger than total lines, 
fixes a crash reported by Thomas Sattler.
 2019-04-01 19:33:38 +00:00
nicm
9ee1a8f701 Improve cursor positioning after reflow by storing the position as an 
offset into the entire history before reflow and restoring it aftewards.
 2019-03-20 19:19:11 +00:00
nicm
d738d51688 Mode init needs to be fired with the mode on the list or it will not be 
resized correctly.
 2019-03-18 15:25:36 +00:00
nicm
b2bc34af12 Set a flag on cells are genuinely empty (cleared and never written to) 
and use tty_clear_line (which will choose the best escape sequence) to
clear any batches of cells with that flag when redrawing a line from the
stored screen.
 2019-03-12 23:21:45 +00:00
nicm
fc41bf46ac Add a "terminal" colour which can be used instead of "default" in style 
options for the terminal default colour, bypassing any inheritance from
other options. Prompted by a discussion with abieber@.
 2018-10-25 15:13:38 +00:00
nicm
bc0e527f32 Support for extended underline styles on terminals which offer them, 
enabled by adding the Smulx capability with terminal-overrides (add
something like ',vte*:Smulx=\E[4\:%p1%dm'). GitHub issue 1492.
 2018-10-18 07:57:57 +00:00
nicm
e7d53020b4 Helper function to shorten history. 2018-07-11 06:51:39 +00:00
nicm
03519021b9 Add function comments. 2018-07-11 06:43:45 +00:00
nicm
2fae6a5761 Add accessors for grid linedata member, for some future work. From Dan 
Aloni.
 2018-07-04 09:44:07 +00:00
nicm
d0c992306d Fix some compiler warnings; from Thomas Adam. 2018-06-11 11:14:10 +00:00
nicm
ba31d3a88c Increment the lines counter when skipping a line to avoid an infinite 
loop, and fix a check to avoid a potential out-of-bounds access. Problem
reported by Yuxiang Qin and tracked down by Karl Beldan; GitHub issue
1352.

Also a man page fix request by jmc@.
 2018-06-03 10:17:30 +00:00
nicm
2595718dd3 Include source function name in grid_check_y logging. 2018-04-18 14:31:42 +00:00
nicm
320abba341 Reflowing the grid in-place involved way too much memmove() for a big 
performance cost with a large history. Instead change back to using a
second grid and copying modified lines over which is much faster (this
doesn't revert to the old code however which didn't support UTF-8
properly). GitHub issue 1249.
 2018-02-16 09:51:41 +00:00
nicm
533a5719c5 Completely rewrite the reflow code to correctly handle double width 
characters (previously they were not accounted for).
 2017-11-15 19:21:24 +00:00
nicm
50a5f84cb4 Support mouse on preview in tree mode. 2017-11-03 17:02:33 +00:00
nicm
6fdaaa0637 Do not free more lines than are available in the history. 2017-09-11 06:40:46 +00:00
nicm
70bc07a358 Previously, extended cell data was never reduced in size even when the 
cell was overwritten. With a large history this can be a substantial
amount of memory. To reduce this, compact each extended cell list to
only cells in use as it is scrolled off the visible screen into the
history. From Dan Aloni in GitHub issue 1062.
 2017-09-10 14:36:12 +00:00
nicm
6abfd9b8ff Instead of overloading the line clear function to mean free if 
background is default (8), introduce an explicit free function and use
it where a free alone is needed. Likewise, use memmove directly rather
than grid_move_lines where it makes sense. Based on a memory leak fix by
Dan Aloni in GitHub issue 1051.
 2017-08-30 18:13:47 +00:00