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Try to avoid moving the cursor to the start of the next line when

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printing cells if it is already at the very end of the line and the
terminal will wrap it to the next line itself, this means terminals
still see it as a wrapped line for the purposes of their own mouse
selection. Reported by millert@.
This commit is contained in:
nicm 2017-03-15 09:21:21 +00:00
parent 8e9b10062b
commit 3c3c08b6d9
1 changed files with 22 additions and 2 deletions
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24
tty.c
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@ -41,6 +41,8 @@ static int tty_try_colour(struct tty *, int, const char *);
static void tty_force_cursor_colour(struct tty *, const char *);
static void tty_cursor_pane(struct tty *, const struct tty_ctx *, u_int,
u_int);
static void tty_cursor_pane_unless_wrap(struct tty *,
const struct tty_ctx *, u_int, u_int);
static void tty_invalidate(struct tty *);
static void tty_colours(struct tty *, const struct grid_cell *);
static void tty_check_fg(struct tty *, const struct window_pane *,
@ -1188,7 +1190,7 @@ tty_cmd_cell(struct tty *tty, const struct tty_ctx *ctx)
tty_margin_off(tty);
}
tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
tty_cursor_pane_unless_wrap(tty, ctx, ctx->ocx, ctx->ocy);
tty_cell(tty, ctx->cell, ctx->wp);
}
@ -1196,7 +1198,7 @@ tty_cmd_cell(struct tty *tty, const struct tty_ctx *ctx)
void
tty_cmd_cells(struct tty *tty, const struct tty_ctx *ctx)
{
tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
tty_cursor_pane_unless_wrap(tty, ctx, ctx->ocx, ctx->ocy);
tty_attributes(tty, ctx->cell, ctx->wp);
tty_putn(tty, ctx->ptr, ctx->num, ctx->num);
@ -1389,6 +1391,24 @@ tty_margin(struct tty *tty, u_int rleft, u_int rright)
tty->cx = tty->cy = UINT_MAX;
}
/*
* Move the cursor, unless it would wrap itself when the next character is
* printed.
*/
static void
tty_cursor_pane_unless_wrap(struct tty *tty, const struct tty_ctx *ctx,
u_int cx, u_int cy)
{
if (!tty_pane_full_width(tty, ctx) ||
(tty->term->flags & TERM_EARLYWRAP) ||
ctx->xoff + cx != 0 ||
ctx->yoff + cy != tty->cy + 1 ||
tty->cx < tty->sx)
tty_cursor_pane(tty, ctx, cx, cy);
else
log_debug("%s: will wrap at %u,%u", __func__, tty->cx, tty->cy);
}
/* Move cursor inside pane. */
static void
tty_cursor_pane(struct tty *tty, const struct tty_ctx *ctx, u_int cx, u_int cy)