1 /* $OpenBSD: lib_bkgd.c,v 1.2 2001/01/22 18:01:37 millert Exp $ */ 2 3 /**************************************************************************** 4 * Copyright (c) 1998,2000 Free Software Foundation, Inc. * 5 * * 6 * Permission is hereby granted, free of charge, to any person obtaining a * 7 * copy of this software and associated documentation files (the * 8 * "Software"), to deal in the Software without restriction, including * 9 * without limitation the rights to use, copy, modify, merge, publish, * 10 * distribute, distribute with modifications, sublicense, and/or sell * 11 * copies of the Software, and to permit persons to whom the Software is * 12 * furnished to do so, subject to the following conditions: * 13 * * 14 * The above copyright notice and this permission notice shall be included * 15 * in all copies or substantial portions of the Software. * 16 * * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 20 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 21 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 22 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 23 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 24 * * 25 * Except as contained in this notice, the name(s) of the above copyright * 26 * holders shall not be used in advertising or otherwise to promote the * 27 * sale, use or other dealings in this Software without prior written * 28 * authorization. * 29 ****************************************************************************/ 30 31 /**************************************************************************** 32 * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 * 33 * and: Eric S. Raymond <esr@snark.thyrsus.com> * 34 ****************************************************************************/ 35 36 #include <curses.priv.h> 37 38 MODULE_ID("$From: lib_bkgd.c,v 1.14 2000/12/10 02:43:26 tom Exp $") 39 40 NCURSES_EXPORT(void) 41 wbkgdset(WINDOW *win, chtype ch) 42 { 43 T((T_CALLED("wbkgdset(%p,%s)"), win, _tracechtype(ch))); 44 45 if (win) { 46 chtype off = AttrOf(win->_bkgd); 47 chtype on = AttrOf(ch); 48 49 toggle_attr_off(win->_attrs, off); 50 toggle_attr_on(win->_attrs, on); 51 52 if (TextOf(ch) == 0) 53 ch |= BLANK; 54 win->_bkgd = ch; 55 } 56 returnVoid; 57 } 58 59 NCURSES_EXPORT(int) 60 wbkgd(WINDOW *win, const chtype ch) 61 { 62 int code = ERR; 63 int x, y; 64 chtype new_bkgd = ch; 65 66 T((T_CALLED("wbkgd(%p,%s)"), win, _tracechtype(new_bkgd))); 67 68 if (win) { 69 chtype old_bkgd = getbkgd(win); 70 71 wbkgdset(win, new_bkgd); 72 wattrset(win, AttrOf(win->_bkgd)); 73 74 for (y = 0; y <= win->_maxy; y++) { 75 for (x = 0; x <= win->_maxx; x++) { 76 if (win->_line[y].text[x] == old_bkgd) 77 win->_line[y].text[x] = win->_bkgd; 78 else 79 win->_line[y].text[x] = 80 _nc_render(win, (A_ALTCHARSET & 81 AttrOf(win->_line[y].text[x])) 82 | TextOf(win->_line[y].text[x])); 83 } 84 } 85 touchwin(win); 86 _nc_synchook(win); 87 code = OK; 88 } 89 returnCode(code); 90 } 91