Sync OpenBSD patchset 429:

Now we are correctly not redrawing the whole pane on linefeed, redo the
last-cursor-position code to move to the right position when panes reach EOL.

1 files changed, 16 insertions, 9 deletions

diff --git a/tty.c b/tty.c
index 028fab69..b04c07c4 100644
--- a/tty.c
+++ b/tty.c
@@ -1,4 +1,4 @@
-/* $Id: tty.c,v 1.160 2009-10-23 17:23:52 tcunha Exp $ */
+/* $Id: tty.c,v 1.161 2009-10-23 17:25:51 tcunha Exp $ */
 
 /*
  * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -856,17 +856,24 @@ tty_cmd_cell(struct tty *tty, const struct tty_ctx *ctx)
 {
 	struct window_pane	*wp = ctx->wp;
 	struct screen		*s = wp->screen;
-	u_int			 cx;
+	u_int			 cx, sx;
 
 	tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
 
-	/*
-	 * Should the cursor be in the last cursor position ready for a natural
-	 * wrap? If so - and it isn't - move to and rewrite the last cell.
-	 */
-	if (!(tty->term->flags & TERM_EARLYWRAP) &&
-	    ctx->ocx + wp->xoff > tty->sx - ctx->last_width) {
-		if (tty->cx < tty->sx) {
+	/* Is the cursor in the very last position? */
+	if (ctx->ocx > wp->sx - ctx->last_width) {
+		if (wp->xoff != 0 || wp->sx != tty->sx) {
+			/*
+			 * The pane doesn't fill the entire line, the linefeed
+			 * will already have happened, so just move the cursor.
+			 */
+			tty_cursor_pane(tty, ctx, 0, ctx->ocy + 1);
+		} else if (tty->cx < tty->sx) {
+			/*
+			 * The cursor isn't in the last position already, so
+			 * move as far left as possinble and redraw the last
+			 * cell to move into the last position.
+			 */
 			cx = screen_size_x(s) - ctx->last_width;
 			tty_cursor_pane(tty, ctx, cx, ctx->ocy);
 			tty_cell(tty, &ctx->last_cell, &ctx->last_utf8);