/* Clear into history. */
void
grid_view_clear_history(struct grid *gd, u_int bg)
{
struct grid_line *gl;
u_int yy, last;
/* Find the last used line. */
last = 0;
for (yy = 0; yy < gd->sy; yy++) {
gl = &gd->linedata[grid_view_y(gd, yy)];
if (gl->cellused != 0)
last = yy + 1;
}
if (last == 0) {
grid_view_clear(gd, 0, 0, gd->sx, gd->sy, bg);
return;
}
/* Scroll the lines into the history. */
for (yy = 0; yy < last; yy++) {
grid_collect_history(gd, bg);
grid_scroll_history(gd, bg);
}
if (last < gd->sy)
grid_view_clear(gd, 0, 0, gd->sx, gd->sy - last, bg);
gd->hscrolled = 0;
}
/* Scroll region up. */
void
grid_view_scroll_region_up(struct grid *gd, u_int rupper, u_int rlower)
{
if (gd->flags & GRID_HISTORY) {
grid_collect_history(gd);
if (rupper == 0 && rlower == gd->sy - 1)
grid_scroll_history(gd);
else {
rupper = grid_view_y(gd, rupper);
rlower = grid_view_y(gd, rlower);
grid_scroll_history_region(gd, rupper, rlower);
}
} else {
rupper = grid_view_y(gd, rupper);
rlower = grid_view_y(gd, rlower);
grid_move_lines(gd, rupper, rupper + 1, rlower - rupper);
}
}
/* Clear into history. */
void
grid_view_clear_history(struct grid *gd)
{
struct grid_line *gl;
u_int yy, last;
/* Find the last used line. */
last = 0;
for (yy = 0; yy < gd->sy; yy++) {
gl = &gd->linedata[grid_view_y(gd, yy)];
if (gl->cellsize != 0)
last = yy + 1;
}
if (last == 0)
return;
/* Scroll the lines into the history. */
for (yy = 0; yy < last; yy++) {
grid_collect_history(gd);
grid_scroll_history(gd);
}
}
