lib_vline.c

   1 /****************************************************************************
   2  * Copyright (c) 1998 Free Software Foundation, Inc.                        *
   3  *                                                                          *
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   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,   *
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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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  26  * authorization.                                                           *
  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_vline.c
  38 **
  39 **      The routine wvline().
  40 **
  41 */
  42
  43 #include <curses.priv.h>
  44
  45 MODULE_ID("$Id: lib_vline.c,v 1.2 1998/02/11 12:13:55 tom Exp $")
  46
  47 int wvline(WINDOW *win, chtype ch, int n)
  48 {
  49 int   code = ERR;
  50 short row, col;
  51 short end;
  52
  53         T((T_CALLED("wvline(%p,%s,%d)"), win, _tracechtype(ch), n));
  54
  55         if (win) {
  56                 row = win->_cury;
  57                 col = win->_curx;
  58                 end = row + n - 1;
  59                 if (end > win->_maxy)
  60                         end = win->_maxy;
  61
  62                 if (ch == 0)
  63                         ch = ACS_VLINE;
  64                 ch = _nc_render(win, ch);
  65
  66                 while(end >= row) {
  67                         win->_line[end].text[col] = ch;
  68                         if (win->_line[end].firstchar == _NOCHANGE
  69                          || win->_line[end].firstchar > col)
  70                                 win->_line[end].firstchar = col;
  71                         if (win->_line[end].lastchar == _NOCHANGE
  72                          || win->_line[end].lastchar < col)
  73                                 win->_line[end].lastchar = col;
  74                         end--;
  75                 }
  76
  77                 _nc_synchook(win);
  78                 code = OK;
  79         }
  80         returnCode(code);
  81 }