int
mvwin(WINDOW *win, int by, int bx)
{
WINDOW *orig;
int dy, dx;
if (by + win->_maxy > LINES || bx + win->_maxx > COLS)
return (ERR);
dy = by - win->_begy;
dx = bx - win->_begx;
orig = win->_orig;
if (orig == NULL) {
orig = win;
do {
win->_begy += dy;
win->_begx += dx;
_swflags_(win);
win = win->_nextp;
} while (win != orig);
} else {
if (by < orig->_begy || win->_maxy + dy > orig->_maxy)
return (ERR);
if (bx < orig->_begx || win->_maxx + dx > orig->_maxx)
return (ERR);
win->_begy = (short)by;
win->_begx = (short)bx;
_swflags_(win);
_set_subwin_(orig, win);
}
(void) touchwin(win);
return (OK);
}
int mvwin(
reg WINDOW *win,
reg int by,
reg int bx )
{
register WINDOW *orig;
register int dy, dx;
if (by + win->_maxy > LINES || bx + win->_maxx > COLS)
return ERR;
dy = by - win->_begy;
dx = bx - win->_begx;
orig = win->_orig;
if (orig == NULL) {
orig = win;
do {
win->_begy += dy;
win->_begx += dx;
_swflags_(win);
win = win->_nextp;
} while (win != orig);
}
else {
if (by < orig->_begy || win->_maxy + dy > orig->_maxy)
return ERR;
if (bx < orig->_begx || win->_maxx + dx > orig->_maxx)
return ERR;
win->_begy = by;
win->_begx = bx;
_swflags_(win);
_set_subwin_(orig, win);
}
touchwin(win);
return OK;
}
static WINDOW *
makenew(int num_lines, int num_cols, int begy, int begx)
{
WINDOW *win;
int by, bx, nl, nc;
by = begy;
bx = begx;
nl = num_lines;
nc = num_cols;
#ifdef DEBUG
fprintf(outf, "MAKENEW(%d, %d, %d, %d)\n", nl, nc, by, bx);
#endif
if ((win = (WINDOW *) malloc(sizeof (*win))) == NULL)
return (NULL);
#ifdef DEBUG
fprintf(outf, "MAKENEW: nl = %d\n", nl);
#endif
if ((win->_y = (char **)malloc(nl * sizeof (win->_y[0]))) == NULL) {
free(win);
return (NULL);
}
#ifdef DEBUG
fprintf(outf, "MAKENEW: nc = %d\n", nc);
#endif
win->_cury = win->_curx = 0;
win->_clear = FALSE;
win->_maxy = (short)nl;
win->_maxx = (short)nc;
win->_begy = (short)by;
win->_begx = (short)bx;
win->_flags = 0;
win->_scroll = win->_leave = FALSE;
_swflags_(win);
win->_orig = NULL;
#ifdef DEBUG
fprintf(outf, "MAKENEW: win->_clear = %d\n", win->_clear);
fprintf(outf, "MAKENEW: win->_leave = %d\n", win->_leave);
fprintf(outf, "MAKENEW: win->_scroll = %d\n", win->_scroll);
fprintf(outf, "MAKENEW: win->_flags = %0.2o\n", win->_flags);
fprintf(outf, "MAKENEW: win->_maxy = %d\n", win->_maxy);
fprintf(outf, "MAKENEW: win->_maxx = %d\n", win->_maxx);
fprintf(outf, "MAKENEW: win->_begy = %d\n", win->_begy);
fprintf(outf, "MAKENEW: win->_begx = %d\n", win->_begx);
#endif
return (win);
}
