lib_bkgd.c revision 50276
1/**************************************************************************** 2 * Copyright (c) 1998 Free Software Foundation, Inc. * 3 * * 4 * Permission is hereby granted, free of charge, to any person obtaining a * 5 * copy of this software and associated documentation files (the * 6 * "Software"), to deal in the Software without restriction, including * 7 * without limitation the rights to use, copy, modify, merge, publish, * 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 * 20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 21 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 22 * * 23 * Except as contained in this notice, the name(s) of the above copyright * 24 * holders shall not be used in advertising or otherwise to promote the * 25 * sale, use or other dealings in this Software without prior written * 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#include <curses.priv.h> 35 36MODULE_ID("$Id: lib_bkgd.c,v 1.12 1998/02/11 12:13:54 tom Exp $") 37 38void wbkgdset(WINDOW *win, chtype ch) 39{ 40 T((T_CALLED("wbkgdset(%p,%s)"), win, _tracechtype(ch))); 41 42 if (win) { 43 chtype off = AttrOf(win->_bkgd); 44 chtype on = AttrOf(ch); 45 46 toggle_attr_off(win->_attrs,off); 47 toggle_attr_on (win->_attrs,on); 48 49 if (TextOf(ch)==0) 50 ch |= BLANK; 51 win->_bkgd = ch; 52 } 53 returnVoid; 54} 55 56int wbkgd(WINDOW *win, const chtype ch) 57{ 58 int code = ERR; 59 int x, y; 60 chtype new_bkgd = ch; 61 62 T((T_CALLED("wbkgd(%p,%s)"), win, _tracechtype(new_bkgd))); 63 64 if (win) { 65 chtype old_bkgd = getbkgd(win); 66 67 wbkgdset(win, new_bkgd); 68 wattrset(win, AttrOf(win->_bkgd)); 69 70 for (y = 0; y <= win->_maxy; y++) { 71 for (x = 0; x <= win->_maxx; x++) { 72 if (win->_line[y].text[x] == old_bkgd) 73 win->_line[y].text[x] = win->_bkgd; 74 else 75 win->_line[y].text[x] = 76 _nc_render(win,(A_ALTCHARSET & 77 AttrOf(win->_line[y].text[x])) 78 | TextOf(win->_line[y].text[x])); 79 } 80 } 81 touchwin(win); 82 _nc_synchook(win); 83 code = OK; 84 } 85 returnCode(code); 86} 87