static void
draw_window (size_t topline, Window wp)
{
size_t i, o;
Region r;
int highlight = calculate_highlight_region (wp, &r);
/* Find the first line to display on the first screen line. */
for (o = buffer_start_of_line (get_window_bp (wp), window_o (wp)), i = get_window_topdelta (wp);
i > 0 && o > 0;
assert ((o = buffer_prev_line (get_window_bp (wp), o)) != SIZE_MAX), --i)
;
/* Draw the window lines. */
size_t cur_tab_width = tab_width (get_window_bp (wp));
for (i = topline; i < get_window_eheight (wp) + topline; ++i)
{
/* Clear the line. */
term_move (i, 0);
term_clrtoeol ();
/* If at the end of the buffer, don't write any text. */
if (o == SIZE_MAX)
continue;
draw_line (i, get_window_start_column (wp), wp, o, r, highlight, cur_tab_width);
if (get_window_start_column (wp) > 0)
{
term_move (i, 0);
term_addstr("$");
}
o = buffer_next_line (get_window_bp (wp), o);
}
set_window_all_displayed (wp, o >= get_buffer_size (get_window_bp (wp)));
/* Draw the status line only if there is available space after the
buffer text space. */
if (get_window_fheight (wp) - get_window_eheight (wp) > 0)
draw_status_line (topline + get_window_eheight (wp), wp);
}
/*
* Scroll completions up.
*/
void
completion_scroll_up (void)
{
Window *wp, *old_wp = cur_wp;
Point pt;
wp = find_window ("*Completions*");
assert (wp != NULL);
set_current_window (wp);
pt = get_buffer_pt (cur_bp);
if (pt.n >= get_buffer_last_line (cur_bp) - get_window_eheight (cur_wp) || !FUNCALL (scroll_up))
gotobob ();
set_current_window (old_wp);
term_redisplay ();
}
