/**************************************************************************** * Copyright (c) 1998,2001-2002 Free Software Foundation, Inc. * * * * Permission is hereby granted, free of charge, to any person obtaining a * * copy of this software and associated documentation files (the * * "Software"), to deal in the Software without restriction, including * * without limitation the rights to use, copy, modify, merge, publish, * * distribute, distribute with modifications, sublicense, and/or sell * * copies of the Software, and to permit persons to whom the Software is * * furnished to do so, subject to the following conditions: * * * * The above copyright notice and this permission notice shall be included * * in all copies or substantial portions of the Software. * * * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * * * * Except as contained in this notice, the name(s) of the above copyright * * holders shall not be used in advertising or otherwise to promote the * * sale, use or other dealings in this Software without prior written * * authorization. * ****************************************************************************/ /**************************************************************************** * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 * * and: Eric S. Raymond <esr@snark.thyrsus.com> * ****************************************************************************/ #include <curses.priv.h> MODULE_ID("$Id: lib_bkgd.c,v 1.30 2003/07/05 16:46:49 tom Exp $") /* * Set the window's background information. */ #if USE_WIDEC_SUPPORT NCURSES_EXPORT(void) #else static inline void #endif wbkgrndset(WINDOW *win, const ARG_CH_T ch) { T((T_CALLED("wbkgdset(%p,%s)"), win, _tracech_t(ch))); if (win) { attr_t off = AttrOf(win->_nc_bkgd); attr_t on = AttrOf(CHDEREF(ch)); toggle_attr_off(win->_attrs, off); toggle_attr_on(win->_attrs, on); if (CharOf(CHDEREF(ch)) == L('\0')) SetChar(win->_nc_bkgd, BLANK_TEXT, AttrOf(CHDEREF(ch))); else win->_nc_bkgd = CHDEREF(ch); #if USE_WIDEC_SUPPORT /* * If we're compiled for wide-character support, _bkgrnd is the * preferred location for the background information since it stores * more than _bkgd. Update _bkgd each time we modify _bkgrnd, so the * macro getbkgd() will work. */ { cchar_t wch; int tmp; wgetbkgrnd(win, &wch); tmp = _nc_to_char(CharOf(wch)); win->_bkgd = ((tmp == EOF) ? ' ' : (chtype) tmp) | AttrOf(wch); } #endif } returnVoid; } NCURSES_EXPORT(void) wbkgdset(WINDOW *win, chtype ch) { NCURSES_CH_T wch; SetChar2(wch, ch); wbkgrndset(win, CHREF(wch)); } /* * Set the window's background information and apply it to each cell. */ #if USE_WIDEC_SUPPORT NCURSES_EXPORT(int) #else static inline int #undef wbkgrnd #endif wbkgrnd(WINDOW *win, const ARG_CH_T ch) { int code = ERR; int x, y; NCURSES_CH_T new_bkgd = CHDEREF(ch); T((T_CALLED("wbkgd(%p,%s)"), win, _tracech_t(ch))); if (win) { NCURSES_CH_T old_bkgrnd; wgetbkgrnd(win, &old_bkgrnd); wbkgrndset(win, CHREF(new_bkgd)); wattrset(win, AttrOf(win->_nc_bkgd)); for (y = 0; y <= win->_maxy; y++) { for (x = 0; x <= win->_maxx; x++) { if (CharEq(win->_line[y].text[x], old_bkgrnd)) win->_line[y].text[x] = win->_nc_bkgd; else { NCURSES_CH_T wch = win->_line[y].text[x]; RemAttr(wch, (~A_ALTCHARSET)); win->_line[y].text[x] = _nc_render(win, wch); } } } touchwin(win); _nc_synchook(win); code = OK; } returnCode(code); } NCURSES_EXPORT(int) wbkgd(WINDOW *win, chtype ch) { NCURSES_CH_T wch; SetChar2(wch, ch); return wbkgrnd(win, CHREF(wch)); }