ncurses/lib_hline.c

   1 /****************************************************************************
   2  * Copyright (c) 1998 Free Software Foundation, Inc.                        *
   3  *                                                                          *
   4  * Permission is hereby granted, free of charge, to any person obtaining a  *
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   6  * "Software"), to deal in the Software without restriction, including      *
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   8  * distribute, distribute with modifications, sublicense, and/or sell       *
   9  * copies of the Software, and to permit persons to whom the Software is    *
  10  * furnished to do so, subject to the following conditions:                 *
  11  *                                                                          *
  12  * The above copyright notice and this permission notice shall be included  *
  13  * in all copies or substantial portions of the Software.                   *
  14  *                                                                          *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
  16  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
  17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
  18  * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
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  21  * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
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  23  * Except as contained in this notice, the name(s) of the above copyright   *
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  27  ****************************************************************************/
  28
  29 /****************************************************************************
  30  *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
  31  *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
  32  ****************************************************************************/
  33
  34
  35
  36 /*
  37 **      lib_hline.c
  38 **
  39 **      The routine whline().
  40 **
  41 */
  42
  43 #include <curses.priv.h>
  44
  45 MODULE_ID("$Id: lib_hline.c,v 1.2 1998/02/11 12:13:55 tom Exp $")
  46
  47 int whline(WINDOW *win, chtype ch, int n)
  48 {
  49 int   code = ERR;
  50 short line;
  51 short start;
  52 short end;
  53
  54         T((T_CALLED("whline(%p,%s,%d)"), win, _tracechtype(ch), n));
  55
  56         if (win) {
  57                 line  = win->_cury;
  58                 start = win->_curx;
  59                 end   = start + n - 1;
  60                 if (end > win->_maxx)
  61                         end   = win->_maxx;
  62
  63                 if (win->_line[line].firstchar == _NOCHANGE
  64                  || win->_line[line].firstchar > start)
  65                         win->_line[line].firstchar = start;
  66                 if (win->_line[line].lastchar == _NOCHANGE
  67                  || win->_line[line].lastchar < start)
  68                         win->_line[line].lastchar = end;
  69
  70                 if (ch == 0)
  71                         ch = ACS_HLINE;
  72                 ch = _nc_render(win, ch);
  73
  74                 while ( end >= start) {
  75                         win->_line[line].text[end] = ch;
  76                         end--;
  77                 }
  78                 code = OK;
  79         }
  80         returnCode(code);
  81 }