… | |
… | |
613 | want_refresh = 1; |
613 | want_refresh = 1; |
614 | num_scr += count; |
614 | num_scr += count; |
615 | |
615 | |
616 | if (count > 0 |
616 | if (count > 0 |
617 | && row1 == 0 |
617 | && row1 == 0 |
618 | && row2 == nrow - 1 |
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|
619 | && (current_screen == PRIMARY || OPTION (Opt_secondaryScroll))) |
618 | && (current_screen == PRIMARY || OPTION (Opt_secondaryScroll))) |
620 | { |
619 | { |
621 | nsaved = min (nsaved + count, saveLines); |
620 | nsaved = min (nsaved + count, saveLines); |
622 | |
621 | |
623 | HOOK_INVOKE ((this, HOOK_SCROLL_BACK, DT_INT, count, DT_INT, nsaved, DT_END)); |
622 | HOOK_INVOKE ((this, HOOK_SCROLL_BACK, DT_INT, count, DT_INT, nsaved, DT_END)); |
624 | |
623 | |
|
|
624 | // scroll everything up 'count' lines |
625 | term_start = (term_start + count) % total_rows; |
625 | term_start = (term_start + count) % total_rows; |
626 | |
626 | |
|
|
627 | { |
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|
628 | // severe bottommost scrolled line |
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|
629 | line_t &l = ROW(row2 - count); |
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|
630 | l.touch (); |
|
|
631 | l.is_longer (0); |
|
|
632 | } |
|
|
633 | |
|
|
634 | // erase newly scorlled-in lines |
|
|
635 | for (int i = count; i; --i ) |
|
|
636 | { |
|
|
637 | // basically this is a slightly optimized scr_blank_screen_mem |
|
|
638 | // it is worth the effort on slower machines |
|
|
639 | line_t &l = ROW(nrow - i); |
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|
640 | |
|
|
641 | scr_blank_line (l, 0, l.l, rstyle); |
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642 | |
|
|
643 | l.l = 0; |
|
|
644 | l.f = 0; |
|
|
645 | } |
|
|
646 | |
|
|
647 | // now copy lines below the scroll region bottom to the |
|
|
648 | // bottom of the screen again, so they look as if they |
|
|
649 | // hadn't moved. |
|
|
650 | for (int i = nrow; --i > row2; ) |
|
|
651 | { |
|
|
652 | line_t &l1 = ROW(i - count); |
|
|
653 | line_t &l2 = ROW(i); |
|
|
654 | |
|
|
655 | ::swap (l1, l2); |
|
|
656 | l2.touch (); |
|
|
657 | } |
|
|
658 | |
|
|
659 | // move and/or clear selection, if any |
627 | if (selection.op && current_screen == selection.screen) |
660 | if (selection.op && current_screen == selection.screen) |
628 | { |
661 | { |
629 | selection.beg.row -= count; |
662 | selection.beg.row -= count; |
630 | selection.end.row -= count; |
663 | selection.end.row -= count; |
631 | selection.mark.row -= count; |
664 | selection.mark.row -= count; |
… | |
… | |
637 | CLEAR_ALL_SELECTION (); |
670 | CLEAR_ALL_SELECTION (); |
638 | selection.op = SELECTION_CLEAR; |
671 | selection.op = SELECTION_CLEAR; |
639 | } |
672 | } |
640 | } |
673 | } |
641 | |
674 | |
642 | for (int i = count; i--; ) |
675 | // finally move the view window, if desired |
643 | { |
|
|
644 | // basically thi is a slightly optimized scr_blank_screen_mem |
|
|
645 | // it is worth the effort on slower machines |
|
|
646 | line_t &l = ROW(row2 - i); |
|
|
647 | |
|
|
648 | scr_blank_line (l, 0, l.l, rstyle); |
|
|
649 | |
|
|
650 | l.l = 0; |
|
|
651 | l.f = 0; |
|
|
652 | } |
|
|
653 | |
|
|
654 | if (OPTION (Opt_scrollWithBuffer) |
676 | if (OPTION (Opt_scrollWithBuffer) |
655 | && view_start != 0 |
677 | && view_start != 0 |
656 | && view_start != saveLines) |
678 | && view_start != saveLines) |
657 | scr_page (UP, count); |
679 | scr_page (UP, count); |
658 | } |
680 | } |