1 /**************************************************************************** 2 * Copyright (c) 1998-2004,2005 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: Thomas E. Dickey * 31 ****************************************************************************/ 32 33 #include <curses.priv.h> 34 #include <term.h> 35 36 MODULE_ID("$Id: lib_dft_fgbg.c,v 1.18 2005/11/26 20:03:38 tom Exp $") 37 38 /* 39 * Modify the behavior of color-pair 0 so that the library doesn't assume that 40 * it is white on black. This is an extension to XSI curses. 41 */ 42 NCURSES_EXPORT(int) 43 use_default_colors(void) 44 { 45 T((T_CALLED("use_default_colors()"))); 46 returnCode(assume_default_colors(-1, -1)); 47 } 48 49 /* 50 * Modify the behavior of color-pair 0 so that the library assumes that it 51 * is something specific, possibly not white on black. 52 */ 53 NCURSES_EXPORT(int) 54 assume_default_colors(int fg, int bg) 55 { 56 T((T_CALLED("assume_default_colors(%d,%d)"), fg, bg)); 57 58 if (!orig_pair && !orig_colors) 59 returnCode(ERR); 60 61 if (initialize_pair) /* don't know how to handle this */ 62 returnCode(ERR); 63 64 SP->_default_color = isDefaultColor(fg) || isDefaultColor(bg); 65 SP->_has_sgr_39_49 = (tigetflag("AX") == TRUE); 66 SP->_default_fg = isDefaultColor(fg) ? COLOR_DEFAULT : (fg & C_MASK); 67 SP->_default_bg = isDefaultColor(bg) ? COLOR_DEFAULT : (bg & C_MASK); 68 if (SP->_color_pairs != 0) { 69 bool save = SP->_default_color; 70 SP->_default_color = TRUE; 71 init_pair(0, (short) fg, (short) bg); 72 SP->_default_color = save; 73 } 74 returnCode(OK); 75 } 76