1 /* $OpenBSD: lib_dft_fgbg.c,v 1.8 2010/01/12 23:22:05 nicm Exp $ */ 2 3 /**************************************************************************** 4 * Copyright (c) 1998-2004,2005 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: Thomas E. Dickey * 33 ****************************************************************************/ 34 35 #include <curses.priv.h> 36 #include <term.h> 37 38 MODULE_ID("$Id: lib_dft_fgbg.c,v 1.8 2010/01/12 23:22:05 nicm Exp $") 39 40 /* 41 * Modify the behavior of color-pair 0 so that the library doesn't assume that 42 * it is white on black. This is an extension to XSI curses. 43 */ 44 NCURSES_EXPORT(int) 45 use_default_colors(void) 46 { 47 T((T_CALLED("use_default_colors()"))); 48 returnCode(assume_default_colors(-1, -1)); 49 } 50 51 /* 52 * Modify the behavior of color-pair 0 so that the library assumes that it 53 * is something specific, possibly not white on black. 54 */ 55 NCURSES_EXPORT(int) 56 assume_default_colors(int fg, int bg) 57 { 58 T((T_CALLED("assume_default_colors(%d,%d)"), fg, bg)); 59 60 if (!orig_pair && !orig_colors) 61 returnCode(ERR); 62 63 if (initialize_pair) /* don't know how to handle this */ 64 returnCode(ERR); 65 66 SP->_default_color = isDefaultColor(fg) || isDefaultColor(bg); 67 SP->_has_sgr_39_49 = (tigetflag("AX") == TRUE); 68 SP->_default_fg = isDefaultColor(fg) ? COLOR_DEFAULT : (fg & C_MASK); 69 SP->_default_bg = isDefaultColor(bg) ? COLOR_DEFAULT : (bg & C_MASK); 70 if (SP->_color_pairs != 0) { 71 bool save = SP->_default_color; 72 SP->_default_color = TRUE; 73 init_pair(0, (short) fg, (short) bg); 74 SP->_default_color = save; 75 } 76 returnCode(OK); 77 } 78