void
termpty_text_save_top(Termpty *ty, Termcell *cells, ssize_t w_max)
{
Termsave *ts;
ssize_t w;
if (ty->backmax <= 0) return;
termpty_save_freeze();
w = termpty_line_length(cells, w_max);
ts = termpty_save_new(w);
termpty_cell_copy(ty, cells, ts->cell, w);
if (!ty->back) ty->back = calloc(1, sizeof(Termsave *) * ty->backmax);
if (ty->back[ty->backpos])
{
Termsave *ts2;
ts2 = termpty_save_extract(ty->back[ty->backpos]);
termpty_save_free(ts2);
ty->back[ty->backpos] = NULL;
}
ty->back[ty->backpos] = ts;
ty->backpos++;
if (ty->backpos >= ty->backmax) ty->backpos = 0;
ty->backscroll_num++;
if (ty->backscroll_num >= ty->backmax) ty->backscroll_num = ty->backmax;
termpty_save_thaw();
}
void
_termpty_text_scroll(Termpty *ty, Eina_Bool clear)
{
Termcell *cells = NULL, *cells2;
int y, start_y = 0, end_y = ty->h - 1;
if (ty->state.scroll_y2 != 0)
{
start_y = ty->state.scroll_y1;
end_y = ty->state.scroll_y2 - 1;
}
else
if (!ty->altbuf)
termpty_text_save_top(ty, &(TERMPTY_SCREEN(ty, 0, 0)), ty->w);
termio_scroll(ty->obj, -1, start_y, end_y);
DBG("... scroll!!!!! [%i->%i]", start_y, end_y);
if (start_y == 0 && end_y == ty->h - 1)
{
// screen is a circular buffer now
cells = &(ty->screen[ty->circular_offset * ty->w]);
if (clear)
_text_clear(ty, cells, ty->w, 0, EINA_TRUE);
ty->circular_offset++;
if (ty->circular_offset >= ty->h)
ty->circular_offset = 0;
}
else
{
cells = &(TERMPTY_SCREEN(ty, 0, end_y));
for (y = start_y; y < end_y; y++)
{
cells = &(TERMPTY_SCREEN(ty, 0, (y + 1)));
cells2 = &(TERMPTY_SCREEN(ty, 0, y));
termpty_cell_copy(ty, cells, cells2, ty->w);
}
if (clear)
_text_clear(ty, cells, ty->w, 0, EINA_TRUE);
}
}
void
_termpty_text_scroll_rev(Termpty *ty, Eina_Bool clear)
{
Termcell *cells, *cells2 = NULL;
int y, start_y = 0, end_y = ty->h - 1;
if (ty->state.scroll_y2 != 0)
{
start_y = ty->state.scroll_y1;
end_y = ty->state.scroll_y2 - 1;
}
DBG("... scroll rev!!!!! [%i->%i]", start_y, end_y);
termio_scroll(ty->obj, 1, start_y, end_y);
if (start_y == 0 && end_y == ty->h - 1)
{
// screen is a circular buffer now
ty->circular_offset--;
if (ty->circular_offset < 0)
ty->circular_offset = ty->h - 1;
cells = &(ty->screen[ty->circular_offset * ty->w]);
if (clear)
_text_clear(ty, cells, ty->w, 0, EINA_TRUE);
}
else
{
cells = &(TERMPTY_SCREEN(ty, 0, end_y));
for (y = end_y; y > start_y; y--)
{
cells = &(TERMPTY_SCREEN(ty, 0, (y - 1)));
cells2 = &(TERMPTY_SCREEN(ty, 0, y));
termpty_cell_copy(ty, cells, cells2, ty->w);
}
y = start_y;
if (clear)
_text_clear(ty, cells, ty->w, 0, EINA_TRUE);
}
}
void
_termpty_text_append(Termpty *ty, const Eina_Unicode *codepoints, int len)
{
Termcell *cells;
int i, j;
termio_content_change(ty->obj, ty->state.cx, ty->state.cy, len);
cells = &(TERMPTY_SCREEN(ty, 0, ty->state.cy));
for (i = 0; i < len; i++)
{
Eina_Unicode g;
if (ty->state.wrapnext)
{
cells[ty->w - 1].att.autowrapped = 1;
ty->state.wrapnext = 0;
ty->state.cx = 0;
ty->state.cy++;
_termpty_text_scroll_test(ty, EINA_TRUE);
cells = &(TERMPTY_SCREEN(ty, 0, ty->state.cy));
}
if (ty->state.insert)
{
for (j = ty->w - 1; j > ty->state.cx; j--)
termpty_cell_copy(ty, &(cells[j - 1]), &(cells[j]), 1);
}
g = _termpty_charset_trans(codepoints[i], ty->state.charsetch);
termpty_cell_codepoint_att_fill(ty, g, ty->state.att,
&(cells[ty->state.cx]), 1);
#if defined(SUPPORT_DBLWIDTH)
cells[ty->state.cx].att.dblwidth = _termpty_is_dblwidth_get(ty, g);
if (EINA_UNLIKELY((cells[ty->state.cx].att.dblwidth) && (ty->state.cx < (ty->w - 1))))
{
TERMPTY_FMTCLR(cells[ty->state.cx].att);
termpty_cell_codepoint_att_fill(ty, 0, cells[ty->state.cx].att,
&(cells[ty->state.cx + 1]), 1);
}
#endif
if (ty->state.wrap)
{
unsigned char offset = 1;
ty->state.wrapnext = 0;
#if defined(SUPPORT_DBLWIDTH)
if (EINA_UNLIKELY(cells[ty->state.cx].att.dblwidth))
offset = 2;
#endif
if (EINA_UNLIKELY(ty->state.cx >= (ty->w - offset))) ty->state.wrapnext = 1;
else ty->state.cx += offset;
}
else
{
unsigned char offset = 1;
ty->state.wrapnext = 0;
#if defined(SUPPORT_DBLWIDTH)
if (EINA_UNLIKELY(cells[ty->state.cx].att.dblwidth))
offset = 2;
#endif
ty->state.cx += offset;
if (ty->state.cx > (ty->w - offset))
{
ty->state.cx = ty->w - offset;
return;
}
}
}
}
void
termpty_text_append(Termpty *ty, const Eina_Unicode *codepoints, int len)
{
Termcell *cells;
int i, j;
termio_content_change(ty->obj, ty->cursor_state.cx, ty->cursor_state.cy, len);
cells = &(TERMPTY_SCREEN(ty, 0, ty->cursor_state.cy));
for (i = 0; i < len; i++)
{
Eina_Unicode g;
if (ty->termstate.wrapnext)
{
cells[ty->w - 1].att.autowrapped = 1;
ty->termstate.wrapnext = 0;
ty->cursor_state.cx = 0;
ty->cursor_state.cy++;
termpty_text_scroll_test(ty, EINA_TRUE);
cells = &(TERMPTY_SCREEN(ty, 0, ty->cursor_state.cy));
}
if (ty->termstate.insert)
{
for (j = ty->w - 1; j > ty->cursor_state.cx; j--)
termpty_cell_copy(ty, &(cells[j - 1]), &(cells[j]), 1);
}
g = _termpty_charset_trans(codepoints[i], ty);
/* Skip 0-width space */
if (EINA_UNLIKELY(g == 0x200b))
{
continue;
}
if (EINA_UNLIKELY(g >= 0x300 && g <=0x36f))
{
/* combining chars */
if (EINA_UNLIKELY(g == 0x336))
{
ty->termstate.combining_strike = 1;
}
continue;
}
termpty_cell_codepoint_att_fill(ty, g, ty->termstate.att,
&(cells[ty->cursor_state.cx]), 1);
if (EINA_UNLIKELY(ty->termstate.combining_strike))
{
ty->termstate.combining_strike = 0;
cells[ty->cursor_state.cx].att.strike = 1;
}
cells[ty->cursor_state.cx].att.dblwidth = _termpty_is_dblwidth_get(ty, g);
if (EINA_UNLIKELY((cells[ty->cursor_state.cx].att.dblwidth) && (ty->cursor_state.cx < (ty->w - 1))))
{
TERMPTY_FMTCLR(cells[ty->cursor_state.cx].att);
termpty_cell_codepoint_att_fill(ty, 0, cells[ty->cursor_state.cx].att,
&(cells[ty->cursor_state.cx + 1]), 1);
}
if (ty->termstate.wrap)
{
unsigned char offset = 1;
ty->termstate.wrapnext = 0;
if (EINA_UNLIKELY(cells[ty->cursor_state.cx].att.dblwidth))
offset = 2;
if (EINA_UNLIKELY(ty->cursor_state.cx >= (ty->w - offset)))
ty->termstate.wrapnext = 1;
else
{
ty->cursor_state.cx += offset;
TERMPTY_RESTRICT_FIELD(ty->cursor_state.cx, 0, ty->w);
}
}
else
{
unsigned char offset = 1;
ty->termstate.wrapnext = 0;
if (EINA_UNLIKELY(cells[ty->cursor_state.cx].att.dblwidth))
offset = 2;
ty->cursor_state.cx += offset;
if (ty->cursor_state.cx > (ty->w - offset))
{
ty->cursor_state.cx = ty->w - offset;
TERMPTY_RESTRICT_FIELD(ty->cursor_state.cx, 0, ty->w);
return;
}
TERMPTY_RESTRICT_FIELD(ty->cursor_state.cx, 0, ty->w);
}
}
}
