lib_bkgd.c revision 50276
150276Speter/****************************************************************************
250276Speter * Copyright (c) 1998 Free Software Foundation, Inc.                        *
350276Speter *                                                                          *
450276Speter * Permission is hereby granted, free of charge, to any person obtaining a  *
550276Speter * copy of this software and associated documentation files (the            *
650276Speter * "Software"), to deal in the Software without restriction, including      *
750276Speter * without limitation the rights to use, copy, modify, merge, publish,      *
850276Speter * distribute, distribute with modifications, sublicense, and/or sell       *
950276Speter * copies of the Software, and to permit persons to whom the Software is    *
1050276Speter * furnished to do so, subject to the following conditions:                 *
1150276Speter *                                                                          *
1250276Speter * The above copyright notice and this permission notice shall be included  *
1350276Speter * in all copies or substantial portions of the Software.                   *
1450276Speter *                                                                          *
1550276Speter * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
1650276Speter * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
1750276Speter * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
1850276Speter * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
1950276Speter * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
2050276Speter * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
2150276Speter * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
2250276Speter *                                                                          *
2350276Speter * Except as contained in this notice, the name(s) of the above copyright   *
2450276Speter * holders shall not be used in advertising or otherwise to promote the     *
2550276Speter * sale, use or other dealings in this Software without prior written       *
2650276Speter * authorization.                                                           *
2750276Speter ****************************************************************************/
2850276Speter
2950276Speter/****************************************************************************
3050276Speter *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
3150276Speter *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
3250276Speter ****************************************************************************/
3350276Speter
3450276Speter#include <curses.priv.h>
3550276Speter
3650276SpeterMODULE_ID("$Id: lib_bkgd.c,v 1.12 1998/02/11 12:13:54 tom Exp $")
3750276Speter
3850276Spetervoid wbkgdset(WINDOW *win, chtype ch)
3950276Speter{
4050276Speter  T((T_CALLED("wbkgdset(%p,%s)"), win, _tracechtype(ch)));
4150276Speter
4250276Speter  if (win) {
4350276Speter    chtype off = AttrOf(win->_bkgd);
4450276Speter    chtype on  = AttrOf(ch);
4550276Speter
4650276Speter    toggle_attr_off(win->_attrs,off);
4750276Speter    toggle_attr_on (win->_attrs,on);
4850276Speter
4950276Speter    if (TextOf(ch)==0)
5050276Speter      ch |= BLANK;
5150276Speter    win->_bkgd = ch;
5250276Speter  }
5350276Speter  returnVoid;
5450276Speter}
5550276Speter
5650276Speterint wbkgd(WINDOW *win, const chtype ch)
5750276Speter{
5850276Speter  int code = ERR;
5950276Speter  int x, y;
6050276Speter  chtype new_bkgd = ch;
6150276Speter
6250276Speter  T((T_CALLED("wbkgd(%p,%s)"), win, _tracechtype(new_bkgd)));
6350276Speter
6450276Speter  if (win) {
6550276Speter    chtype old_bkgd = getbkgd(win);
6650276Speter
6750276Speter    wbkgdset(win, new_bkgd);
6850276Speter    wattrset(win, AttrOf(win->_bkgd));
6950276Speter
7050276Speter    for (y = 0; y <= win->_maxy; y++) {
7150276Speter      for (x = 0; x <= win->_maxx; x++) {
7250276Speter	if (win->_line[y].text[x] == old_bkgd)
7350276Speter	  win->_line[y].text[x] = win->_bkgd;
7450276Speter	else
7550276Speter	  win->_line[y].text[x] =
7650276Speter	    _nc_render(win,(A_ALTCHARSET &
7750276Speter			    AttrOf(win->_line[y].text[x]))
7850276Speter		       | TextOf(win->_line[y].text[x]));
7950276Speter      }
8050276Speter    }
8150276Speter    touchwin(win);
8250276Speter    _nc_synchook(win);
8350276Speter    code = OK;
8450276Speter  }
8550276Speter  returnCode(code);
8650276Speter}
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