/* Resize screen. */
void
screen_resize(struct screen *s, u_int sx, u_int sy, int reflow)
{
if (sx < 1)
sx = 1;
if (sy < 1)
sy = 1;
if (sx != screen_size_x(s)) {
screen_resize_x(s, sx);
/*
* It is unclear what should happen to tabs on resize. xterm
* seems to try and maintain them, rxvt resets them. Resetting
* is simpler and more reliable so let's do that.
*/
screen_reset_tabs(s);
}
if (sy != screen_size_y(s))
screen_resize_y(s, sy);
if (reflow)
screen_reflow(s, sx);
}
/* Reset screen state. */
void
screen_write_reset(struct screen_write_ctx *ctx)
{
struct screen *s = ctx->s;
screen_reset_tabs(s);
screen_write_scrollregion(ctx, 0, screen_size_y(s) - 1);
s->mode &= ~(MODE_INSERT|MODE_KCURSOR|MODE_KKEYPAD|MODE_FOCUSON);
s->mode &= ~(ALL_MOUSE_MODES|MODE_MOUSE_UTF8|MODE_MOUSE_SGR);
screen_write_clearscreen(ctx, 8);
screen_write_cursormove(ctx, 0, 0);
}
/* Reset screen state. */
void
screen_write_reset(struct screen_write_ctx *ctx)
{
screen_reset_tabs(ctx->s);
screen_write_scrollregion(ctx, 0, screen_size_y(ctx->s) - 1);
screen_write_insertmode(ctx, 0);
screen_write_kcursormode(ctx, 0);
screen_write_kkeypadmode(ctx, 0);
screen_write_mousemode_off(ctx);
screen_write_clearscreen(ctx);
screen_write_cursormove(ctx, 0, 0);
}
/* Reinitialise screen. */
void
screen_reinit(struct screen *s)
{
s->cx = 0;
s->cy = 0;
s->rupper = 0;
s->rlower = screen_size_y(s) - 1;
s->mode = MODE_CURSOR | MODE_WRAP;
screen_reset_tabs(s);
grid_clear_lines(s->grid, s->grid->hsize, s->grid->sy);
screen_clear_selection(s);
}
/* Execute escape sequence. */
int
input_esc_dispatch(struct input_ctx *ictx)
{
struct screen_write_ctx *sctx = &ictx->ctx;
struct screen *s = sctx->s;
struct input_table_entry *entry;
if (ictx->flags & INPUT_DISCARD)
return (0);
log_debug("%s: '%c', %s", __func__, ictx->ch, ictx->interm_buf);
entry = bsearch(ictx, input_esc_table, nitems(input_esc_table),
sizeof input_esc_table[0], input_table_compare);
if (entry == NULL) {
log_debug("%s: unknown '%c'", __func__, ictx->ch);
return (0);
}
switch (entry->type) {
case INPUT_ESC_RIS:
memcpy(&ictx->cell, &grid_default_cell, sizeof ictx->cell);
memcpy(&ictx->old_cell, &ictx->cell, sizeof ictx->old_cell);
ictx->old_cx = 0;
ictx->old_cy = 0;
screen_reset_tabs(sctx->s);
screen_write_scrollregion(sctx, 0, screen_size_y(sctx->s) - 1);
screen_write_insertmode(sctx, 0);
screen_write_kcursormode(sctx, 0);
screen_write_kkeypadmode(sctx, 0);
screen_write_mousemode(sctx, 0);
screen_write_clearscreen(sctx);
screen_write_cursormove(sctx, 0, 0);
break;
case INPUT_ESC_IND:
screen_write_linefeed(sctx, 0);
break;
case INPUT_ESC_NEL:
screen_write_carriagereturn(sctx);
screen_write_linefeed(sctx, 0);
break;
case INPUT_ESC_HTS:
if (s->cx < screen_size_x(s))
bit_set(s->tabs, s->cx);
break;
case INPUT_ESC_RI:
screen_write_reverseindex(sctx);
break;
case INPUT_ESC_DECKPAM:
screen_write_kkeypadmode(sctx, 1);
break;
case INPUT_ESC_DECKPNM:
screen_write_kkeypadmode(sctx, 0);
break;
case INPUT_ESC_DECSC:
memcpy(&ictx->old_cell, &ictx->cell, sizeof ictx->old_cell);
ictx->old_cx = s->cx;
ictx->old_cy = s->cy;
break;
case INPUT_ESC_DECRC:
memcpy(&ictx->cell, &ictx->old_cell, sizeof ictx->cell);
screen_write_cursormove(sctx, ictx->old_cx, ictx->old_cy);
break;
case INPUT_ESC_DECALN:
screen_write_alignmenttest(sctx);
break;
case INPUT_ESC_SCSON_G0:
/*
* Not really supported, but fake it up enough for those that
* use it to switch character sets (by redefining G0 to
* graphics set, rather than switching to G1).
*/
ictx->cell.attr &= ~GRID_ATTR_CHARSET;
break;
case INPUT_ESC_SCSOFF_G0:
ictx->cell.attr |= GRID_ATTR_CHARSET;
break;
}
return (0);
}
