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2 * Copyright (c) 2017 Free Software Foundation, Inc. *
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5 * copy of this software and associated documentation files (the *
6 * "Software"), to deal in the Software without restriction, including *
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15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
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27 ****************************************************************************/
29 /****************************************************************************
30 * Author: Thomas E. Dickey *
31 ****************************************************************************/
34 * Common type definitions and macros for new_pair.c, lib_color.c
36 * $Id: new_pair.h,v 1.4 2017/03/31 11:32:07 tom Exp $
43 #define USE_NEW_PAIR NCURSES_EXT_COLORS
45 #define MAX_OF_TYPE(t) (int)(((unsigned t)(~0))>>1)
46 #define LIMIT_TYPED(n,t) (t)(((t)(n) < 0) ? MAX_OF_TYPE(t) : (n))
48 #define limit_COLOR(n) LIMIT_TYPED(n,NCURSES_COLOR_T)
49 #define limit_PAIRS(n) LIMIT_TYPED(n,NCURSES_PAIRS_T)
51 #define MAX_XCURSES_PAIR MAX_OF_TYPE(NCURSES_PAIRS_T)
54 #define OPTIONAL_PAIR GCC_UNUSED
55 #define USE_NEW_PAIR NCURSES_EXT_COLORS
56 #define get_extended_pair(opts, color_pair) \
57 if ((opts) != NULL) { \
58 *(int*)(opts) = color_pair; \
60 #define set_extended_pair(opts, color_pair) \
61 if ((opts) != NULL) { \
62 color_pair = *(const int*)(opts); \
65 #define OPTIONAL_PAIR /* nothing */
66 #define USE_NEW_PAIR NCURSES_EXT_COLORS
67 #define get_extended_pair(opts, color_pair) /* nothing */
68 #define set_extended_pair(opts, color_pair) \
69 if ((opts) != NULL) { \
74 #ifdef NEW_PAIR_INTERNAL
77 cpKEEP = -1, /* color pair 0 */
78 cpFREE = 0, /* free for use */
79 cpINIT = 1, /* init_pair() */
80 cpAUTO = 1 /* alloc_pair() */
83 typedef struct _color_pairs
88 int mode; /* tells if the entry is allocated or free */
89 int prev; /* index of previous item */
90 int next; /* index of next item */
95 #define MakeColorPair(target,f,b) target.fg = f, target.bg = b
96 #define isSamePair(a,b) ((a).fg == (b).fg && (a).bg == (b).bg)
97 #define FORE_OF(c) (c).fg
98 #define BACK_OF(c) (c).bg
101 * Ensure that we use color pairs only when colors have been started, and also
102 * that the index is within the limits of the table which we allocated.
104 #define ValidPair(sp,pair) \
105 ((sp != 0) && (pair >= 0) && (pair < sp->_pair_limit) && sp->_coloron)
108 extern NCURSES_EXPORT(void) _nc_set_color_pair(SCREEN*, int, int);
109 extern NCURSES_EXPORT(void) _nc_reset_color_pair(SCREEN*, int, colorpair_t*);
111 #define _nc_set_color_pair(sp, pair, mode) /* nothing */
112 #define _nc_reset_color_pair(sp, pair, data) /* nothing */
117 typedef struct _color_pairs colorpair_t;
119 #endif /* NEW_PAIR_INTERNAL */
122 extern NCURSES_EXPORT(void) _nc_new_pair_leaks(SCREEN*);
127 #endif /* NEW_PAIR_H */