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-rw-r--r--tty.c24
1 files changed, 22 insertions, 2 deletions
diff --git a/tty.c b/tty.c
index 0ed6125e..47b28454 100644
--- a/tty.c
+++ b/tty.c
@@ -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)