nvi/vi/vs_smap.c

45 vs_change(SCR *sp, recno_t lno, lnop_t op)
51 	vip = VIP(sp);
66 	    !db_exist(sp, 2)) {
92 			for (p = HMAP, cnt = sp->t_rows; cnt--; ++p)
94 			if (sp->lno >= lno)
95 				--sp->lno;
99 			for (p = HMAP, cnt = sp->t_rows; cnt--; ++p)
101 			if (sp->lno >= lno)
102 				++sp->lno;
118 	if (sp->lno == lno)
126 	if (!F_ISSET(sp, SC_TINPUT_INFO) &&
127 	    (F_ISSET(sp, SC_SCR_EXWROTE) || VIP(sp)->totalcount > 1)) {
133 	(void)sp->gp->scr_cursor(sp, &oldy, &oldx);
137 		if (vs_sm_delete(sp, lno))
139 		if (sp->lno > lno)
140 			--sp->lno;
144 		if (vs_sm_insert(sp, lno))
146 		if (sp->lno > lno)
147 			++sp->lno;
151 		if (vs_sm_reset(sp, lno))
158 	(void)sp->gp->scr_move(sp, oldy, oldx);
177 vs_sm_fill(SCR *sp, recno_t lno, pos_t pos)
183 	for (p = HMAP, cnt = sp->t_rows; cnt--; ++p)
194 	F_SET(sp, SC_SCR_REDRAW);
203 		if (vs_sm_nlines(sp,
204 		    &tmp, lno, HALFTEXT(sp)) <= HALFTEXT(sp)) {
210 		if (db_last(sp, &tmp.lno))
213 		tmp.soff = vs_screens(sp, tmp.lno, NULL);
214 		if (vs_sm_nlines(sp,
215 		    &tmp, lno, HALFTEXT(sp)) <= HALFTEXT(sp)) {
234 			cnt = vs_screens(sp, HMAP->lno, NULL);
239 		for (p = HMAP, cnt = sp->t_rows; --cnt; ++p)
240 			if (vs_sm_next(sp, p, p + 1))
245 middle:		p = HMAP + sp->t_rows / 2;
250 			if (vs_sm_prev(sp, p, p - 1)) {
256 		p = HMAP + sp->t_rows / 2;
258 			if (vs_sm_next(sp, p, p + 1))
265 			TMAP->soff = vs_screens(sp, lno, NULL);
269 			if (vs_sm_prev(sp, p, p - 1)) {
287 		if (vs_sm_next(sp, p, p + 1))
300 	if (cnt >= sp->t_rows) {					\
301 		F_SET(sp, SC_SCR_REFORMAT);				\
311 vs_sm_delete(SCR *sp, recno_t lno)
321 	if (O_ISSET(sp, O_LEFTRIGHT))
330 	(void)sp->gp->scr_move(sp, p - HMAP, 0);
331 	if (vs_deleteln(sp, cnt_orig))
343 		if (p < TMAP && vs_sm_next(sp, p, p + 1))
346 		if (vs_line(sp, ++p, NULL, NULL))
359 vs_sm_insert(SCR *sp, recno_t lno)
373 	cnt_orig = vs_screens(sp, lno, NULL);
385 	(void)sp->gp->scr_move(sp, p - HMAP, 0);
386 	if (vs_insertln(sp, cnt_orig))
402 		if (vs_line(sp, t, NULL, NULL))
413 vs_sm_reset(SCR *sp, recno_t lno)
424 	if (O_ISSET(sp, O_LEFTRIGHT)) {
430 		cnt_new = vs_screens(sp, lno, NULL);
438 			if (vs_line(sp, p, NULL, NULL))
458 			(void)sp->gp->scr_move(sp, p - HMAP, 0);
459 			if (vs_insertln(sp, diff))
472 			if (vs_line(sp, t, NULL, NULL))
480 		(void)sp->gp->scr_move(sp, p - HMAP, 0);
481 		if (vs_deleteln(sp, diff))
492 			if (vs_line(sp, t, NULL, NULL))
498 			if (t < TMAP && vs_sm_next(sp, t, t + 1))
501 			if (vs_line(sp, ++t, NULL, NULL))
518 vs_sm_scroll(SCR *sp, MARK *rp, recno_t count, scroll_t scmd)
527 	F_SET(VIP(sp), VIP_CUR_INVALID);
530 	if (vs_sm_cursor(sp, &smp))
538 		if (vs_sm_down(sp, rp, count, scmd, smp))
545 		if (vs_sm_up(sp, rp, count, scmd, smp))
564 	    rp->cno == 0 && nonblank(sp, rp->lno, &rp->cno))
575 vs_sm_up(SCR *sp, MARK *rp, recno_t count, scroll_t scmd, SMAP *smp)
591 	if (vs_sm_next(sp, TMAP, &s1))
593 	if (s1.lno > TMAP->lno && !db_exist(sp, s1.lno)) {
595 			v_eof(sp, NULL);
598 		if (vs_sm_next(sp, smp, &s1))
600 		if (s1.lno > smp->lno && !db_exist(sp, s1.lno)) {
601 			v_eof(sp, NULL);
618 	if (IS_SMALL(sp)) {
619 		if (count >= sp->t_maxrows || scmd == CNTRL_F) {
621 			if (vs_sm_erase(sp))
624 				if (vs_sm_next(sp, &s1, &s2))
626 				if (s2.lno != s1.lno && !db_exist(sp, s2.lno))
630 			if (vs_sm_fill(sp, OOBLNO, P_BOTTOM))
632 			return (vs_sm_position(sp, rp, 0, P_TOP));
634 		cursor_set = scmd == CNTRL_E || vs_sm_cursor(sp, &ssmp);
636 		    sp->t_rows != sp->t_maxrows; --count, ++sp->t_rows) {
637 			if (vs_sm_next(sp, TMAP, &s1))
639 			if (TMAP->lno != s1.lno && !db_exist(sp, s1.lno))
643 			if (vs_line(sp, TMAP, NULL, NULL))
659 		if (vs_sm_next(sp, TMAP, &s1))
663 		if (TMAP->lno != s1.lno && !db_exist(sp, s1.lno))
667 		if (vs_sm_1up(sp))
703 			rp->cno = vs_colpos(sp, smp->lno,
704 			    (O_ISSET(sp, O_LEFTRIGHT) ?
705 			    smp->coff : (smp->soff - 1) * sp->cols) +
706 			    sp->rcm % sp->cols);
727 			if (smp == TMAP || !db_exist(sp, smp[1].lno))
737 	if (!SMAP_CACHE(smp) && vs_line(sp, smp, NULL, NULL))
751 vs_sm_1up(SCR *sp)
757 	(void)sp->gp->scr_move(sp, 0, 0);
758 	if (vs_deleteln(sp, 1))
762 	if (IS_ONELINE(sp)) {
763 		if (vs_sm_next(sp, TMAP, TMAP))
766 		memmove(HMAP, HMAP + 1, (sp->rows - 1) * sizeof(SMAP));
767 		if (vs_sm_next(sp, TMAP - 1, TMAP))
771 	return (vs_line(sp, TMAP, NULL, NULL));
780 vs_deleteln(SCR *sp, int cnt)
785 	gp = sp->gp;
788 	if (IS_VSPLIT(sp)) {
789 		F_SET(sp, SC_SCR_REDRAW);
793 	if (IS_ONELINE(sp))
794 		(void)gp->scr_clrtoeol(sp);
796 		(void)gp->scr_cursor(sp, &oldy, &oldx);
798 			(void)gp->scr_deleteln(sp);
799 			(void)gp->scr_move(sp, LASTLINE(sp), 0);
800 			(void)gp->scr_insertln(sp);
801 			(void)gp->scr_move(sp, oldy, oldx);
812 vs_sm_down(SCR *sp, MARK *rp, recno_t count, scroll_t scmd, SMAP *smp)
819 	    (O_ISSET(sp, O_LEFTRIGHT) || HMAP->soff == 1) &&
821 		v_sof(sp, NULL);
837 	if (IS_SMALL(sp)) {
838 		if (count >= sp->t_maxrows || scmd == CNTRL_B) {
840 			if (vs_sm_erase(sp))
843 				if (vs_sm_prev(sp, &s1, &s2))
846 				    (O_ISSET(sp, O_LEFTRIGHT) || s2.soff == 1))
850 			if (vs_sm_fill(sp, OOBLNO, P_TOP))
852 			return (vs_sm_position(sp, rp, 0, P_BOTTOM));
854 		cursor_set = scmd == CNTRL_Y || vs_sm_cursor(sp, &ssmp);
856 		    sp->t_rows != sp->t_maxrows; --count, ++sp->t_rows) {
858 			    (O_ISSET(sp, O_LEFTRIGHT) || HMAP->soff == 1))
861 			if (vs_sm_1down(sp))
875 		    (O_ISSET(sp, O_LEFTRIGHT) || HMAP->soff == 1))
879 		if (vs_sm_1down(sp))
914 				if (db_exist(sp, smp->lno))
938 			rp->cno = vs_colpos(sp, smp->lno,
939 			    (O_ISSET(sp, O_LEFTRIGHT) ?
940 			    smp->coff : (smp->soff - 1) * sp->cols) +
941 			    sp->rcm % sp->cols);
951 	if (!SMAP_CACHE(smp) && vs_line(sp, smp, NULL, NULL))
963 vs_sm_erase(SCR *sp)
967 	gp = sp->gp;
968 	(void)gp->scr_move(sp, LASTLINE(sp), 0);
969 	(void)gp->scr_clrtoeol(sp);
970 	for (; sp->t_rows > sp->t_minrows; --sp->t_rows, --TMAP) {
971 		(void)gp->scr_move(sp, TMAP - HMAP, 0);
972 		(void)gp->scr_clrtoeol(sp);
984 vs_sm_1down(SCR *sp)
990 	(void)sp->gp->scr_move(sp, 0, 0);
991 	if (vs_insertln(sp, 1))
995 	if (IS_ONELINE(sp)) {
996 		if (vs_sm_prev(sp, HMAP, HMAP))
999 		memmove(HMAP + 1, HMAP, (sp->rows - 1) * sizeof(SMAP));
1000 		if (vs_sm_prev(sp, HMAP + 1, HMAP))
1004 	return (vs_line(sp, HMAP, NULL, NULL));
1013 vs_insertln(SCR *sp, int cnt)
1018 	gp = sp->gp;
1021 	if (IS_VSPLIT(sp)) {
1022 		F_SET(sp, SC_SCR_REDRAW);
1026 	if (IS_ONELINE(sp)) {
1027 		(void)gp->scr_move(sp, LASTLINE(sp), 0);
1028 		(void)gp->scr_clrtoeol(sp);
1030 		(void)gp->scr_cursor(sp, &oldy, &oldx);
1032 			(void)gp->scr_move(sp, LASTLINE(sp) - 1, 0);
1033 			(void)gp->scr_deleteln(sp);
1034 			(void)gp->scr_move(sp, oldy, oldx);
1035 			(void)gp->scr_insertln(sp);
1048 vs_sm_next(SCR *sp, SMAP *p, SMAP *t)
1053 	if (O_ISSET(sp, O_LEFTRIGHT)) {
1057 		lcnt = vs_screens(sp, p->lno, NULL);
1076 vs_sm_prev(SCR *sp, SMAP *p, SMAP *t)
1079 	if (O_ISSET(sp, O_LEFTRIGHT)) {
1088 			t->soff = vs_screens(sp, t->lno, NULL);
1101 vs_sm_cursor(SCR *sp, SMAP **smpp)
1106 	if (sp->lno < HMAP->lno || sp->lno > TMAP->lno)
1110 	for (p = HMAP; p->lno != sp->lno; ++p);
1119 		if (!SMAP_CACHE(p) && vs_line(sp, p, NULL, NULL))
1121 		if (p->c_eboff >= sp->cno) {
1140 vs_sm_position(SCR *sp, MARK *rp, u_long cnt, pos_t pos)
1156 		if (cnt && !db_exist(sp, smp->lno)) {
1157 sof:			msgq(sp, M_BERR, "220|Movement past the end-of-screen");
1168 		if (!db_exist(sp, TMAP->lno)) {
1169 			if (db_last(sp, &last))
1187 		if (!db_exist(sp, smp->lno)) {
1188 			if (db_last(sp, &last))
1192 eof:				msgq(sp, M_BERR,
1204 	if (!SMAP_CACHE(smp) && vs_line(sp, smp, NULL, NULL))
1220 vs_sm_nlines(SCR *sp, SMAP *from_sp, recno_t to_lno, size_t max)
1224 	if (O_ISSET(sp, O_LEFTRIGHT))
1234 			lcnt += vs_screens(sp, lno, NULL);
1237 		lcnt = (vs_screens(sp, lno, NULL) - from_sp->soff) + 1;
1239 			lcnt += vs_screens(sp, lno, NULL);