tmux/dist/screen-write.c

185 	ttyctx->orlower = s->rlower;
921 	if (cy > s->rlower) {
927 		if (ny > s->rlower - cy)
928 			ny = s->rlower - cy;
1027 	s->rlower = screen_size_y(s) - 1;
1154 	if (s->cy < s->rupper || s->cy > s->rlower) {
1171 	if (ny > s->rlower + 1 - s->cy)
1172 		ny = s->rlower + 1 - s->cy;
1179 	if (s->cy < s->rupper || s->cy > s->rlower)
1182 		grid_view_insert_lines_region(gd, s->rlower, s->cy, ny, bg);
1207 	if (s->cy < s->rupper || s->cy > s->rlower) {
1224 	if (ny > s->rlower + 1 - s->cy)
1225 		ny = s->rlower + 1 - s->cy;
1232 	if (s->cy < s->rupper || s->cy > s->rlower)
1235 		grid_view_delete_lines_region(gd, s->rlower, s->cy, ny, bg);
1351 		if ((u_int)py > s->rlower - s->rupper)
1352 			py = s->rlower;
1379 		grid_view_scroll_region_down(s->grid, s->rupper, s->rlower, bg);
1394     u_int rlower)
1400 	if (rlower > screen_size_y(s) - 1)
1401 		rlower = screen_size_y(s) - 1;
1402 	if (rupper >= rlower)	/* cannot be one line */
1411 	s->rlower = rlower;
1424 	u_int			 rupper = s->rupper, rlower = s->rlower;
1431 	    rupper, rlower);
1438 	if (s->cy == s->rlower) {
1440 		if (rlower == screen_size_y(s) - 1)
1443 			redraw = image_check_line(s, rupper, rlower - rupper);
1447 		grid_view_scroll_region_up(gd, s->rupper, s->rlower, bg);
1464 	else if (lines > s->rlower - s->rupper + 1)
1465 		lines = s->rlower - s->rupper + 1;
1478 		grid_view_scroll_region_up(gd, s->rupper, s->rlower, bg);
1498 	else if (lines > s->rlower - s->rupper + 1)
1499 		lines = s->rlower - s->rupper + 1;
1507 		grid_view_scroll_region_down(gd, s->rupper, s->rlower, bg);
1742 	    s->rupper, s->rlower);
1746 	for (y = s->rupper; y < s->rlower; y++) {
1751 	ctx->s->write_list[s->rlower].data = saved;
1758 	TAILQ_INSERT_TAIL(&ctx->s->write_list[s->rlower].items, ci, entry);
1774 		    ctx->scrolled, s->rupper, s->rlower);
1775 		if (ctx->scrolled > s->rlower - s->rupper + 1)
1776 			ctx->scrolled = s->rlower - s->rupper + 1;