same as the old one. This prevents excessive redraws in some
applications.
* Fix bug introduced when wbkgrndset was fixed, we cannot blindly
replace any instance of the old background character with the new one
because some of those characters were put there by the application
leading to display corruption. So flag characters as background when
they are erased and only update the flagged characters when setting
the background.
* Remove the WCOL family of macros, these were "stealing" the upper bits
of a character attribute to store the column width of a character. No
warning was given about this in curses.h which meant it was easy to
accidentally reuse the bits in use by the WCOL macros (we already did).
Add couple of 16bit ints to the character structure iff HAVE_WCHAR is
true to hold the display width and wide char related flags (just
continuation at the moment)
* Convert all instances of WCOL macros to just reference the column width
in the char structure so it is not obfuscated.
* Fix cursor positioning so placing a cursor in the middle of a wide char
actually does just that.
* Fix plod so it understands that if the cursor is going to be positioned
in the middle of a wide char it cannot just reprint the char to get there.
* Fix plodput so it correctly counts the number of output characters for
wide characters.
* Fix slk routines to properly size the wctomb() buffer.
For __newwin() and __resizewin(), the line hash was calculated as if
HAVE_WCHAR is disabled.
Fix this bug by refactoring __hash_line() function, which calculates
the line hash by an appropriate method.
lp->hash is not initialized at this point. Since the hash is
calculated in chunks using __hash_more(), it needs to be initialized
to 0 first (just as in doupdate()).
Detected with valgrind while running python's test suite when
debugging an unrelated issue.
ok uwe@
When support for negative nrows/ncols was added, one s/ncols/maxx/ was
missed so we ended up passing negative (i.e. huge unsigned) length
when hashing the line contents.
Reported by Naman Jain in PR lib/55484
without refresh. If the window is not dirty but the window cursor
position does not match curscr then move the cursor. This fixes
the issues seen in PR lib/54263.
Keep track of the cursor location, if getch is called without a refresh
and without pending updates (dirty windows) then move the cursor to the
correct location directly. Doing this prevents unnecessary refreshes.
This makes it more portable as open_memstream is POSIX and fixes a
potential issue with wide characters not fully being printed
due to any buffer overflow.
If auto margins are present, we need to turn them off or enter
an insert mode to "push" the character we want into the corner.
If pushing a wide character of greater than one cell, we need something
more than ich1, othewise the bottom right corner will remain blank.
Follow on fix for PR# 30978.
OK jdc@
This is a historical behaviour that needs fixing
If any terminal does scroll when drawing in the lowest right hand cell
of the terminal then an entry should be made in the terminfo database
(currently there is no standard code) to state that and define
__SCROLLWIN as before.
Fixes PR# 30978.
When creating stdscr, ensure it's placed and sized in accordance with
lines ripped off.
LINES is no longer adjusted for lines ripped off.
POSIX makes no mention that it should be adjusted.
Bottom lines are now placed correctly.
Lines ripped off are now displayed after calling initscr.
ok kamil@
Fixes PR #53635
term.h #defines lines, pad_char and no_color_video macros which conflict
with existing curses code. We change lines to alines and nlines depending
on use, pad_char to padchar and no_color_video becomes no_color_attributes
but with a strong alias from no_color_video.
Make delwin() remove window from list of windows on its screen.
Free win->lspace and win->lines for subwins (they only share text space).
Free things in the correct (and same) order if malloc() fails in __makenew().
Adjust delscreen() for delwin() removing itself from winlist.
Fixes potential massive corruptions if delwin() called on a main window.
NB: not responsible for the sysinst core dumps :-(
* Added function derwin.
* Added function copywin.
* Modified both overlay and overwrite to use copywin.
* Updated man page with new functions and fixed minor format glitch.
* Added Bill's fixes for errors when compiling with WARNS=1
* Incorporated fixes to make usage of unctrl consistent in debug and
made improvements to ctrace - it now timestamps it's output better.
* Reduced the number of mallocs done by __init_getch by allocating key
structs in bunches instead of singly.
* Removed the shadowing of global declarations in newwin and subwin
functions
blymn