[unix-history] / usr / src / usr.bin / window / cmd6.c

#ifndef lint
static	char *sccsid = "@(#)cmd6.c	2.1 83/07/30";
#endif

#include "defs.h"

struct ww *openwin();
struct ww *doopen();

doscroll(dir)
int dir;
{
	register Win *W = selwin->ww_win;
	register brow = W->w_bstart.row;

	brow += dir * selwin->ww_i.nrow / 2;
	if (brow < 0)
		brow = 0;
	else if (brow + selwin->ww_w.nrow > W->w_textbuf->b_nrows)
		brow = W->w_textbuf->b_nrows - selwin->ww_w.nrow;
	if (brow != W->w_bstart.row)
		Wrelscroll(W, brow - W->w_bstart.row, 0, 1);
}
Commit	Line	Data
04698c54	1	#ifndef lint
35cbbdd0	2	static char *sccsid = "@(#)cmd6.c 2.1 83/07/30";
04698c54 EW	3	#endif
	4
	5	#include "defs.h"
	6
	7	struct ww *openwin();
	8	struct ww *doopen();
	9
	10	doscroll(dir)
	11	int dir;
	12	{
	13	register Win *W = selwin->ww_win;
	14	register brow = W->w_bstart.row;
	15
	16	brow += dir * selwin->ww_i.nrow / 2;
	17	if (brow < 0)
	18	brow = 0;
	19	else if (brow + selwin->ww_w.nrow > W->w_textbuf->b_nrows)
	20	brow = W->w_textbuf->b_nrows - selwin->ww_w.nrow;
	21	if (brow != W->w_bstart.row)
	22	Wrelscroll(W, brow - W->w_bstart.row, 0, 1);
	23	}