release/src/router/libncurses/ncurses/base/lib_chgat.c

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  29 /****************************************************************************
  30  *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
  31  *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
  32  *     and: Sven Verdoolaege                        2001                    *
  33  *     and: Thomas E. Dickey                        2005                    *
  34  ****************************************************************************/
  35
  36 /*
  37 **      lib_chgat.c
  38 **
  39 **      The routine wchgat().
  40 **
  41 */
  42
  43 #include <curses.priv.h>
  44
  45 MODULE_ID("$Id: lib_chgat.c,v 1.10 2014/02/01 22:13:31 tom Exp $")
  46
  47 NCURSES_EXPORT(int)
  48 wchgat(WINDOW *win,
  49        int n,
  50        attr_t attr,
  51        NCURSES_PAIRS_T color,
  52        const void *opts GCC_UNUSED)
  53 {
  54     int i;
  55
  56     T((T_CALLED("wchgat(%p,%d,%s,%d)"),
  57        (void *) win,
  58        n,
  59        _traceattr(attr),
  60        (int) color));
  61
  62     if (win) {
  63         struct ldat *line = &(win->_line[win->_cury]);
  64
  65         toggle_attr_on(attr, ColorPair(color));
  66
  67         for (i = win->_curx; i <= win->_maxx && (n == -1 || (n-- > 0)); i++) {
  68             SetAttr(line->text[i], attr);
  69             SetPair(line->text[i], color);
  70             CHANGED_CELL(line, i);
  71         }
  72
  73         returnCode(OK);
  74     } else
  75         returnCode(ERR);
  76 }