35 static void topline_back(lineoff_T *lp);
36 static void botline_forw(lineoff_T *lp);
1678 topline_back(lineoff_T *lp)  in topline_back()  argument
1681     if (lp->fill < diff_check_fill(curwin, lp->lnum))  in topline_back()
1684 	++lp->fill;  in topline_back()
1685 	lp->height = 1;  in topline_back()
1690 	--lp->lnum;  in topline_back()
1692 	lp->fill = 0;  in topline_back()
1694 	if (lp->lnum < 1)  in topline_back()
1695 	    lp->height = MAXCOL;  in topline_back()
1698 	    if (hasFolding(lp->lnum, &lp->lnum, NULL))  in topline_back()
1700 	    lp->height = 1;  in topline_back()
1703 	    lp->height = PLINES_NOFILL(lp->lnum);  in topline_back()
1714 botline_forw(lineoff_T *lp)  in botline_forw()  argument
1717     if (lp->fill < diff_check_fill(curwin, lp->lnum + 1))  in botline_forw()
1720 	++lp->fill;  in botline_forw()
1721 	lp->height = 1;  in botline_forw()
1726 	++lp->lnum;  in botline_forw()
1728 	lp->fill = 0;  in botline_forw()
1730 	if (lp->lnum > curbuf->b_ml.ml_line_count)  in botline_forw()
1731 	    lp->height = MAXCOL;  in botline_forw()
1734 	    if (hasFolding(lp->lnum, NULL, &lp->lnum))  in botline_forw()
1736 	    lp->height = 1;  in botline_forw()
1739 	    lp->height = PLINES_NOFILL(lp->lnum);  in botline_forw()
1750 botline_topline(lineoff_T *lp)  in botline_topline()  argument
1752     if (lp->fill > 0)  in botline_topline()
1754 	++lp->lnum;  in botline_topline()
1755 	lp->fill = diff_check_fill(curwin, lp->lnum) - lp->fill + 1;  in botline_topline()
1765 topline_botline(lineoff_T *lp)  in topline_botline()  argument
1767     if (lp->fill > 0)  in topline_botline()
1769 	lp->fill = diff_check_fill(curwin, lp->lnum) - lp->fill + 1;  in topline_botline()
1770 	--lp->lnum;  in topline_botline()
2368 static void get_scroll_overlap(lineoff_T *lp, int dir);
2632 get_scroll_overlap(lineoff_T *lp, int dir)  in get_scroll_overlap()  argument
2639     if (lp->fill > 0)  in get_scroll_overlap()
2640 	lp->height = 1;  in get_scroll_overlap()
2642 	lp->height = plines_nofill(lp->lnum);  in get_scroll_overlap()
2644     lp->height = plines(lp->lnum);  in get_scroll_overlap()
2646     h1 = lp->height;  in get_scroll_overlap()
2650     loff0 = *lp;  in get_scroll_overlap()
2652 	botline_forw(lp);  in get_scroll_overlap()
2654 	topline_back(lp);  in get_scroll_overlap()
2655     h2 = lp->height;  in get_scroll_overlap()
2658 	*lp = loff0;	// no overlap  in get_scroll_overlap()
2662     loff1 = *lp;  in get_scroll_overlap()
2664 	botline_forw(lp);  in get_scroll_overlap()
2666 	topline_back(lp);  in get_scroll_overlap()
2667     h3 = lp->height;  in get_scroll_overlap()
2670 	*lp = loff0;	// no overlap  in get_scroll_overlap()
2674     loff2 = *lp;  in get_scroll_overlap()
2676 	botline_forw(lp);  in get_scroll_overlap()
2678 	topline_back(lp);  in get_scroll_overlap()
2679     h4 = lp->height;  in get_scroll_overlap()
2681 	*lp = loff1;	// 1 line overlap  in get_scroll_overlap()
2683 	*lp = loff2;	// 2 lines overlap  in get_scroll_overlap()