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Annotation of 42BSD/usr.lib/libcurses/insertln.c, revision 1.1.1.1

1.1       root        1: # include      "curses.ext"
                      2: 
                      3: /*
                      4:  *     This routine performs an insert-line on the window, leaving
                      5:  * (_cury,_curx) unchanged.
                      6:  *
                      7:  * 4/17/81 (Berkeley) @(#)insertln.c   1.4
                      8:  */
                      9: winsertln(win)
                     10: reg WINDOW     *win; {
                     11: 
                     12:        reg char        *temp;
                     13:        reg int         y;
                     14:        reg char        *end;
                     15: 
                     16:        temp = win->_y[win->_maxy-1];
                     17:        win->_firstch[win->_cury] = 0;
                     18:        win->_lastch[win->_cury] = win->_maxx - 1;
                     19:        for (y = win->_maxy - 1; y > win->_cury; --y) {
                     20:                win->_y[y] = win->_y[y-1];
                     21:                win->_firstch[y] = 0;
                     22:                win->_lastch[y] = win->_maxx - 1;
                     23:        }
                     24:        for (end = &temp[win->_maxx]; temp < end; )
                     25:                *temp++ = ' ';
                     26:        win->_y[win->_cury] = temp - win->_maxx;
                     27:        if (win->_cury == LINES - 1 && win->_y[LINES-1][COLS-1] != ' ')
                     28:                if (win->_scroll) {
                     29:                        wrefresh(win);
                     30:                        scroll(win);
                     31:                        win->_cury--;
                     32:                }
                     33:                else
                     34:                        return ERR;
                     35:        return OK;
                     36: }

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