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Implement DECAWM (SM/RM 7) using existing MODE_WRAP flag.

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This commit is contained in:
Nicholas Marriott
2013-02-18 15:57:46 +00:00
parent ba3b8ccc1d
commit a6c4c2cca0
3 changed files with 21 additions and 9 deletions
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1
TODO
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@@ -171,7 +171,6 @@ TERMINAL ISSUES
- support for bce
- use screen-256color when started on 256 colour terminal??
- if-shell/run-shell should block further command execution in the same command
- wrap/no wrap esc seq DEC CSI ? 7 h/l
* We need a tmux terminfo entry to document the extensions we are using in
upstream terminfo. Must NOT change (only add or remove) anything from
TERM=screen so we can fallback!

6
input.c
View File

@@ -1248,6 +1248,9 @@ input_csi_dispatch(struct input_ctx *ictx)
screen_write_cursormove(&ictx->ctx, 0, 0);
screen_write_clearscreen(&ictx->ctx);
break;
case 7: /* DECAWM */
screen_write_mode_clear(&ictx->ctx, MODE_WRAP);
break;
case 25: /* TCEM */
screen_write_mode_clear(&ictx->ctx, MODE_CURSOR);
break;
@@ -1305,6 +1308,9 @@ input_csi_dispatch(struct input_ctx *ictx)
screen_write_cursormove(&ictx->ctx, 0, 0);
screen_write_clearscreen(&ictx->ctx);
break;
case 7: /* DECAWM */
screen_write_mode_set(&ictx->ctx, MODE_WRAP);
break;
case 25: /* TCEM */
screen_write_mode_set(&ictx->ctx, MODE_CURSOR);
break;

23
screen-write.c
View File

@@ -979,10 +979,10 @@ screen_write_cell(struct screen_write_ctx *ctx, const struct grid_cell *gc)
struct screen *s = ctx->s;
struct grid *gd = s->grid;
struct tty_ctx ttyctx;
u_int width, xx;
u_int width, xx, last;
struct grid_cell tmp_gc, *tmp_gcp;
struct utf8_data ud;
int insert = 0;
int insert;
/* Ignore padding. */
if (gc->flags & GRID_FLAG_PADDING)
@@ -1020,7 +1020,8 @@ screen_write_cell(struct screen_write_ctx *ctx, const struct grid_cell *gc)
xx = screen_size_x(s) - s->cx - width;
grid_move_cells(s->grid, s->cx + width, s->cx, s->cy, xx);
insert = 1;
}
} else
insert = 0;
/* Check this will fit on the current line and wrap if not. */
if ((s->mode & MODE_WRAP) && s->cx > screen_size_x(s) - width) {
@@ -1028,9 +1029,8 @@ screen_write_cell(struct screen_write_ctx *ctx, const struct grid_cell *gc)
s->cx = 0; /* carriage return */
}
/* Sanity checks. */
if (((s->mode & MODE_WRAP) && s->cx > screen_size_x(s) - width)
|| s->cy > screen_size_y(s) - 1)
/* Sanity check cursor position. */
if (s->cx > screen_size_x(s) - width || s->cy > screen_size_y(s) - 1)
return;
/* Handle overwriting of UTF-8 characters. */
@@ -1049,8 +1049,15 @@ screen_write_cell(struct screen_write_ctx *ctx, const struct grid_cell *gc)
/* Set the cell. */
grid_view_set_cell(gd, s->cx, s->cy, gc);
/* Move the cursor. */
s->cx += width;
/*
* Move the cursor. If not wrapping, stick at the last character and
* replace it.
*/
last = !!(s->mode & MODE_WRAP);
if (s->cx <= screen_size_x(s) - last - width)
s->cx += width;
else
s->cx = screen_size_x(s) - last;
/* Draw to the screen if necessary. */
if (insert) {