ncurses/lib_insdel.c

   1
   2 /***************************************************************************
   3 *                            COPYRIGHT NOTICE                              *
   4 ****************************************************************************
   5 *                ncurses is copyright (C) 1992-1995                        *
   6 *                          Zeyd M. Ben-Halim                               *
   7 *                          zmbenhal@netcom.com                             *
   8 *                          Eric S. Raymond                                 *
   9 *                          esr@snark.thyrsus.com                           *
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  21
  22 /*
  23 **      lib_insdel.c
  24 **
  25 **      The routine winsdelln(win, n).
  26 **  positive n insert n lines above current line
  27 **  negative n delete n lines starting from current line
  28 **
  29 */
  30
  31 #include <curses.priv.h>
  32
  33 MODULE_ID("$Id")
  34
  35 int
  36 winsdelln(WINDOW *win, int n)
  37 {
  38         T((T_CALLED("winsdel(%p,%d)"), win, n));
  39
  40         if (n == 0)
  41                 returnCode(OK);
  42
  43         _nc_scroll_window(win, -n, win->_cury, win->_maxy);
  44         touchline(win, win->_cury, win->_maxy - win->_cury + 1);
  45
  46         _nc_synchook(win);
  47         returnCode(OK);
  48 }