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Add a customize mode where keys and options may be browsed and changed,

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includes adding a brief description of each option. Bound to "C" by
default.
This commit is contained in:
nicm
2020-05-16 16:02:24 +00:00
parent 472d77fd0f
commit d67245c734
22 changed files with 2284 additions and 363 deletions
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92
screen-write.c
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@ -360,7 +360,97 @@ screen_write_strlen(const char *fmt, ...)
return (size);
}
/* Write simple string (no UTF-8 or maximum length). */
/* Write string wrapped over lines. */
int
screen_write_text(struct screen_write_ctx *ctx, u_int cx, u_int width,
u_int lines, int more, const struct grid_cell *gcp, const char *fmt, ...)
{
struct screen *s = ctx->s;
va_list ap;
char *tmp;
u_int cy = s->cy, i, end, next, idx = 0, at, left;
struct utf8_data *text;
struct grid_cell gc;
memcpy(&gc, gcp, sizeof gc);
va_start(ap, fmt);
xvasprintf(&tmp, fmt, ap);
va_end(ap);
text = utf8_fromcstr(tmp);
free(tmp);
left = (cx + width) - s->cx;
for (;;) {
/* Find the end of what can fit on the line. */
at = 0;
for (end = idx; text[end].size != 0; end++) {
if (text[end].size == 1 && text[end].data[0] == '\n')
break;
if (at + text[end].width > left)
break;
at += text[end].width;
}
/*
* If we're on a space, that's the end. If not, walk back to
* try and find one.
*/
if (text[end].size == 0)
next = end;
else if (text[end].size == 1 && text[end].data[0] == '\n')
next = end + 1;
else if (text[end].size == 1 && text[end].data[0] == ' ')
next = end + 1;
else {
for (i = end; i > idx; i--) {
if (text[i].size == 1 && text[i].data[0] == ' ')
break;
}
if (i != idx) {
next = i + 1;
end = i;
} else
next = end;
}
/* Print the line. */
for (i = idx; i < end; i++) {
utf8_copy(&gc.data, &text[i]);
screen_write_cell(ctx, &gc);
}
/* If at the bottom, stop. */
idx = next;
if (s->cy == cy + lines - 1 || text[idx].size == 0)
break;
screen_write_cursormove(ctx, cx, s->cy + 1, 0);
left = width;
}
/*
* Fail if on the last line and there is more to come or at the end, or
* if the text was not entirely consumed.
*/
if ((s->cy == cy + lines - 1 && (!more || s->cx == cx + width)) ||
text[idx].size != 0) {
free(text);
return (0);
}
free(text);
/*
* If no more to come, move to the next line. Otherwise, leave on
* the same line (except if at the end).
*/
if (!more || s->cx == cx + width)
screen_write_cursormove(ctx, cx, s->cy + 1, 0);
return (1);
}
/* Write simple string (no maximum length). */
void
screen_write_puts(struct screen_write_ctx *ctx, const struct grid_cell *gcp,
const char *fmt, ...)