ncurses 6.0 - patch 20170311

[ncurses.git] / ncurses / new_pair.h

diff --git a/ncurses/new_pair.h b/ncurses/new_pair.h
new file mode 100644 (file)
index 0000000..8c344da
--- /dev/null
+++ b/ncurses/new_pair.h
@@ -0,0 +1,98 @@
+/****************************************************************************
+ * Copyright (c) 2017 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                                                *
+ ****************************************************************************/
+
+/*
+ * Common type definitions and macros for new_pair.c, lib_color.c
+ *
+ * $Id: new_pair.h,v 1.2 2017/03/10 09:20:43 tom Exp $
+ */
+
+#ifndef NEW_PAIR_H
+#define NEW_PAIR_H 1
+/* *INDENT-OFF* */
+
+#define USE_NEW_PAIR NCURSES_EXT_COLORS
+
+#ifdef NEW_PAIR_INTERNAL
+
+typedef enum {
+    cpKEEP = -1,               /* color pair 0 */
+    cpFREE = 0,                        /* free for use */
+    cpINIT = 1,                        /* init_pair() */
+    cpAUTO = 1                 /* alloc_pair() */
+} CPMODE;
+
+typedef struct _color_pairs
+{
+    int fg;
+    int bg;
+#if USE_NEW_PAIR
+    int mode;                  /* FIXME - needed? */
+    int prev;                  /* index of previous item */
+    int next;                  /* index of next item */
+#endif
+}
+colorpair_t;
+
+#define MakeColorPair(target,f,b) target.fg = f, target.bg = b
+#define isSamePair(a,b)                ((a).fg == (b).fg && (a).bg == (b).bg)
+#define FORE_OF(c)             (c).fg
+#define BACK_OF(c)             (c).bg
+
+/*
+ * Ensure that we use color pairs only when colors have been started, and also
+ * that the index is within the limits of the table which we allocated.
+ */
+#define ValidPair(sp,pair) \
+    ((sp != 0) && (pair >= 0) && (pair < sp->_pair_limit) && sp->_coloron)
+
+#if USE_NEW_PAIR
+extern NCURSES_EXPORT(void)     _nc_set_color_pair(SCREEN*, int, int);
+extern NCURSES_EXPORT(void)     _nc_reset_color_pair(SCREEN*, int, colorpair_t*);
+#else
+#define _nc_set_color_pair(sp, pair, mode) /* nothing */
+#define _nc_reset_color_pair(sp, pair, data) /* nothing */
+#endif
+
+#else
+
+typedef struct _color_pairs colorpair_t;
+
+#endif /* NEW_PAIR_INTERNAL */
+
+#if NO_LEAKS
+extern NCURSES_EXPORT(void)     _nc_new_pair_leaks(SCREEN*);
+#endif
+
+/* *INDENT-ON* */
+
+#endif /* NEW_PAIR_H */