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Don't redraw the scroll region on linefeed/reverse index unless it is necessary

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(the cursor is at the bottom/top). Should fix slow cursor movement when using
vi in a pane spotted by pirofti@.
This commit is contained in:
Nicholas Marriott 2009-10-21 13:42:44 +00:00
parent 683ddbc466
commit 9b5da97e6f
1 changed files with 18 additions and 16 deletions

10
tty.c
View File

@ -684,13 +684,15 @@ tty_cmd_reverseindex(struct tty *tty, const struct tty_ctx *ctx)
struct window_pane *wp = ctx->wp;
struct screen *s = wp->screen;
if (ctx->ocy != ctx->orupper)
return;
if (wp->xoff != 0 || screen_size_x(s) < tty->sx ||
!tty_term_has(tty->term, TTYC_CSR)) {
tty_redraw_region(tty, ctx);
return;
}
if (ctx->ocy == ctx->orupper) {
tty_reset(tty);
tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
@ -698,7 +700,6 @@ tty_cmd_reverseindex(struct tty *tty, const struct tty_ctx *ctx)
tty_putcode(tty, TTYC_RI);
}
}
void
tty_cmd_linefeed(struct tty *tty, const struct tty_ctx *ctx)
@ -706,6 +707,9 @@ tty_cmd_linefeed(struct tty *tty, const struct tty_ctx *ctx)
struct window_pane *wp = ctx->wp;
struct screen *s = wp->screen;
if (ctx->ocy != ctx->orlower)
return;
if (wp->xoff != 0 || screen_size_x(s) < tty->sx ||
!tty_term_has(tty->term, TTYC_CSR)) {
tty_redraw_region(tty, ctx);
@ -720,7 +724,6 @@ tty_cmd_linefeed(struct tty *tty, const struct tty_ctx *ctx)
if (ctx->num && !(tty->term->flags & TERM_EARLYWRAP))
return;
if (ctx->ocy == ctx->orlower) {
tty_reset(tty);
tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
@ -728,7 +731,6 @@ tty_cmd_linefeed(struct tty *tty, const struct tty_ctx *ctx)
tty_putc(tty, '\n');
}
}
void
tty_cmd_clearendofscreen(struct tty *tty, const struct tty_ctx *ctx)