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Telling ncurses to really redraw the line, without optimization.

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git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4907 35c25a1d-7b9e-4130-9fde-d3aeb78583b8
This commit is contained in:
Benno Schulenberg 2014-05-23 20:24:31 +00:00
parent b19524f0d7
commit 0ae38b4ef8
2 changed files with 11 additions and 6 deletions
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ChangeLog
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@ -1,3 +1,10 @@
2014-05-23 Benno Schulenberg <bensberg@justemail.net>
* src/winio.c (edit_draw): Finally, the proper fix for bug #31743;
telling ncurses to really redraw the line, without optimization, so
it will not mistakenly assume that a wide character at the start of
a line takes up just one column. This deletes the workaround that
had the side effect of creating pastes full of trailing whitespace.
2014-05-19 Mark Majeres <mark@engine12.com>
* src/winio.c (edit_draw): Paint the current line *after* tickling the
terminal, so that the character in the final column will be displayed

10
src/winio.c
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@ -2492,15 +2492,13 @@ void edit_draw(filestruct *fileptr, const char *converted, int
assert(openfile != NULL && fileptr != NULL && converted != NULL);
assert(strlenpt(converted) <= COLS);
#ifdef ENABLE_UTF8
if (using_utf8())
/* Tickle the terminal into displaying two-column characters
* properly, using Unicode 00A0 (No-Break Space). */
mvwaddstr(edit, line, COLS - 1, "\xC2\xA0\x00");
#endif
/* First simply paint the line -- then we'll add colors or the
* marking highlight on just the pieces that need it. */
mvwaddstr(edit, line, 0, converted);
/* Tell ncurses to really redraw the line without trying to optimize
for what it thinks is already there, because it gets it wrong in
the case of a wide character in column zero. See bug #31743. */
wredrawln(edit, line, 1);
#ifndef DISABLE_COLOR
/* If color syntaxes are available and turned on, we need to display