ncurses 5.0

[ncurses.git] / ncurses / base / lib_dft_fgbg.c

diff --git a/ncurses/base/lib_dft_fgbg.c b/ncurses/base/lib_dft_fgbg.c
new file mode 100644 (file)
index 0000000..a2dfbd2
--- /dev/null
+++ b/ncurses/base/lib_dft_fgbg.c
@@ -0,0 +1,60 @@
+/****************************************************************************
+ * Copyright (c) 1998 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: Thomas E. Dickey <dickey@clark.net> 1997                        *
+ ****************************************************************************/
+#include <curses.priv.h>
+#include <term.h>
+
+MODULE_ID("$Id: lib_dft_fgbg.c,v 1.3 1998/02/11 12:13:54 tom Exp $")
+
+/*
+ * Modify the behavior of color-pair 0 so that the library doesn't assume that
+ * it is black on white.  This is an extension to XSI curses.
+ *
+ * Invoke this function after 'start_color()'.
+ */
+int
+use_default_colors(void)
+{
+       T((T_CALLED("use_default_colors()")));
+
+       if (!SP->_coloron)
+               returnCode(ERR);
+
+       if (!orig_pair && !orig_colors)
+               returnCode(ERR);
+
+       if (initialize_pair)    /* don't know how to handle this */
+               returnCode(ERR);
+
+       SP->_default_color = TRUE;
+       SP->_color_pairs[0] = PAIR_OF(C_MASK, C_MASK);
+       returnCode(OK);
+}