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Use parm_left_cursor and parm_right_cursor for bulk cursor motions.

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Fixes #1448
This commit is contained in:
ridiculousfish 2014-05-09 14:37:23 -07:00
parent 7f2c4cbf8a
commit fa68c2619f
3 changed files with 36 additions and 37 deletions
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24
output.cpp
View file

@ -418,13 +418,6 @@ int writeb(tputs_arg_t b)
return 0;
}
int writembs_internal(char *str)
{
CHECK(str, 1);
return tputs(str,1,&writeb)==ERR?1:0;
}
int writech(wint_t ch)
{
mbstate_t state;
@ -725,3 +718,20 @@ const wchar_t *output_get_term()
{
return current_term.empty() ? L"<unknown>" : current_term.c_str();
}
void writembs_check(char *mbs, const char *mbs_name, const char *file, long line)
{
if (mbs != NULL)
{
tputs(mbs, 1, &writeb);
}
else
{
debug( 0, _(L"Tried to use terminfo string %s on line %ld of %s, which is undefined in terminal of type \"%ls\". Please report this error to %s"),
mbs_name,
line,
file,
output_get_term(),
PACKAGE_BUGREPORT);
}
}

29
output.h
View file

@ -78,33 +78,8 @@ void set_color(rgb_color_t c, rgb_color_t c2);
/**
Write specified multibyte string
*/
#define writembs( mbs ) \
{ \
char *tmp = mbs; \
if( tmp ) \
{ \
writembs_internal( tmp ); \
} \
else \
{ \
debug( 0, \
_(L"Tried to use terminfo string %s on line %d of %s, which is undefined in terminal of type \"%ls\". Please report this error to %s"), \
#mbs, \
__LINE__, \
__FILE__, \
output_get_term(), \
PACKAGE_BUGREPORT); \
} \
}
/**
Write a char * narrow string to FD 1, needed for the terminfo
strings. This is usually just a wrapper aound tputs, using writeb
as the sending function. But a weird bug on PPC Linux means that on
this platform, write is instead used directly.
*/
int writembs_internal(char *str);
void writembs_check(char *mbs, const char *mbs_name, const char *file, long line);
#define writembs(mbs) writembs_check((mbs), #mbs, __FILE__, __LINE__)
/**
Write a wide character using the output method specified using output_set_writer().

20
screen.cpp
View file

@ -638,18 +638,32 @@ static void s_move(screen_t *s, data_buffer_t *b, int new_x, int new_y)
x_steps = 0;
}
char *multi_str = NULL;
if (x_steps < 0)
{
str = cursor_left;
multi_str = parm_left_cursor;
}
else
{
str = cursor_right;
multi_str = parm_right_cursor;
}
for (i=0; i<abs(x_steps); i++)
// Use the bulk ('multi') output for cursor movement if it is supported and it would be shorter
// Note that this is required to avoid some visual glitches in iTerm (#1448)
bool use_multi = (multi_str != NULL && multi_str[0] != '\0' && abs(x_steps) * strlen(str) > strlen(multi_str));
if (use_multi)
{
writembs(str);
char *multi_param = tparm(multi_str, abs(x_steps));
writembs(multi_param);
}
else
{
for (i=0; i<abs(x_steps); i++)
{
writembs(str);
}
}