/* re_putc():
* Draw the character given
*/
libedit_private void
re_putc(EditLine *el, wint_t c, int shift)
{
coord_t *cur = &el->el_refresh.r_cursor;
int i, w = wcwidth(c);
int sizeh = el->el_terminal.t_size.h;
ELRE_DEBUG(1, (__F, "printing %5x '%lc'\r\n", c, c));
if (w == -1)
w = 0;
while (shift && (cur->h + w > sizeh))
re_putc(el, ' ', 1);
el->el_vdisplay[cur->v][cur->h] = c;
/* assumes !shift is only used for single-column chars */
i = w;
while (--i > 0)
el->el_vdisplay[cur->v][cur->h + i] = MB_FILL_CHAR;
if (!shift)
return;
cur->h += w; /* advance to next place */
if (cur->h >= sizeh) {
/* assure end of line */
el->el_vdisplay[cur->v][sizeh] = '\0';
re_nextline(el);
}
}
/* re_addc():
* Draw c, expanding tabs, control chars etc.
*/
static void
re_addc(EditLine *el, wint_t c)
{
switch (ct_chr_class(c)) {
case CHTYPE_TAB: /* expand the tab */
for (;;) {
re_putc(el, ' ', 1);
if ((el->el_refresh.r_cursor.h & 07) == 0)
break; /* go until tab stop */
}
break;
case CHTYPE_NL: {
int oldv = el->el_refresh.r_cursor.v;
re_putc(el, '\0', 0); /* assure end of line */
if (oldv == el->el_refresh.r_cursor.v) /* XXX */
re_nextline(el);
break;
}
case CHTYPE_PRINT:
re_putc(el, c, 1);
break;
default: {
wchar_t visbuf[VISUAL_WIDTH_MAX];
ssize_t i, n =
ct_visual_char(visbuf, VISUAL_WIDTH_MAX, c);
for (i = 0; n-- > 0; ++i)
re_putc(el, visbuf[i], 1);
break;
}
}
}
/* re_putliteral():
* Place the literal string given
*/
libedit_private void
re_putliteral(EditLine *el, const wchar_t *begin, const wchar_t *end)
{
coord_t *cur = &el->el_refresh.r_cursor;
wint_t c;
int sizeh = el->el_terminal.t_size.h;
int i, w;
c = literal_add(el, begin, end, &w);
if (c == 0 || w <= 0)
return;
el->el_vdisplay[cur->v][cur->h] = c;
i = w;
if (i > sizeh - cur->h) /* avoid overflow */
i = sizeh - cur->h;
while (--i > 0)
el->el_vdisplay[cur->v][cur->h + i] = MB_FILL_CHAR;
cur->h += w;
if (cur->h >= sizeh) {
/* assure end of line */
el->el_vdisplay[cur->v][sizeh] = '\0';
re_nextline(el);
}
}
