1 /**************************************************************************** 2 * Copyright 2018,2020 Thomas E. Dickey * 3 * Copyright 2017 Free Software Foundation, Inc. * 4 * * 5 * Permission is hereby granted, free of charge, to any person obtaining a * 6 * copy of this software and associated documentation files (the * 7 * "Software"), to deal in the Software without restriction, including * 8 * without limitation the rights to use, copy, modify, merge, publish, * 9 * distribute, distribute with modifications, sublicense, and/or sell * 10 * copies of the Software, and to permit persons to whom the Software is * 11 * furnished to do so, subject to the following conditions: * 12 * * 13 * The above copyright notice and this permission notice shall be included * 14 * in all copies or substantial portions of the Software. * 15 * * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 19 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 22 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 23 * * 24 * Except as contained in this notice, the name(s) of the above copyright * 25 * holders shall not be used in advertising or otherwise to promote the * 26 * sale, use or other dealings in this Software without prior written * 27 * authorization. * 28 ****************************************************************************/ 29 30 /**************************************************************************** 31 * Author: Thomas E. Dickey * 32 ****************************************************************************/ 33 34 /* 35 * Common type definitions and macros for new_pair.c, lib_color.c 36 * 37 * $Id: new_pair.h,v 1.11 2020/04/11 16:43:47 tom Exp $ 38 */ 39 40 #ifndef NEW_PAIR_H 41 #define NEW_PAIR_H 1 42 /* *INDENT-OFF* */ 43 44 #define LIMIT_TYPED(n,t) \ 45 (t)(((n) > MAX_OF_TYPE(t)) \ 46 ? MAX_OF_TYPE(t) \ 47 : ((n) < -MAX_OF_TYPE(t)) \ 48 ? -MAX_OF_TYPE(t) \ 49 : (n)) 50 51 #define limit_COLOR(n) LIMIT_TYPED(n,NCURSES_COLOR_T) 52 #define limit_PAIRS(n) LIMIT_TYPED(n,NCURSES_PAIRS_T) 53 54 #define MAX_XCURSES_PAIR MAX_OF_TYPE(NCURSES_PAIRS_T) 55 56 #if NCURSES_EXT_COLORS 57 #define OPTIONAL_PAIR GCC_UNUSED 58 #define get_extended_pair(opts, color_pair) \ 59 if ((opts) != NULL) { \ 60 *(int*)(opts) = color_pair; \ 61 } 62 #define set_extended_pair(opts, color_pair) \ 63 if ((opts) != NULL) { \ 64 color_pair = *(const int*)(opts); \ 65 } 66 #else 67 #define OPTIONAL_PAIR /* nothing */ 68 #define get_extended_pair(opts, color_pair) /* nothing */ 69 #define set_extended_pair(opts, color_pair) \ 70 if ((opts) != NULL) { \ 71 color_pair = -1; \ 72 } 73 #endif 74 75 #ifdef NEW_PAIR_INTERNAL 76 77 typedef enum { 78 cpKEEP = -1, /* color pair 0 */ 79 cpFREE = 0, /* free for use */ 80 cpINIT = 1 /* initialized */ 81 } CPMODE; 82 83 typedef struct _color_pairs 84 { 85 int fg; 86 int bg; 87 #if NCURSES_EXT_COLORS 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 */ 91 #endif 92 } 93 colorpair_t; 94 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 99 100 /* 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. 103 */ 104 #define ValidPair(sp,pair) \ 105 ((sp != 0) && (pair >= 0) && (pair < sp->_pair_limit) && sp->_coloron) 106 107 #if NCURSES_EXT_COLORS 108 extern NCURSES_EXPORT(void) _nc_copy_pairs(SCREEN*, colorpair_t*, colorpair_t*, int); 109 extern NCURSES_EXPORT(void) _nc_free_ordered_pairs(SCREEN*); 110 extern NCURSES_EXPORT(void) _nc_reset_color_pair(SCREEN*, int, colorpair_t*); 111 extern NCURSES_EXPORT(void) _nc_set_color_pair(SCREEN*, int, int); 112 #else 113 #define _nc_free_ordered_pairs(sp) /* nothing */ 114 #define _nc_reset_color_pair(sp, pair, data) /* nothing */ 115 #define _nc_set_color_pair(sp, pair, mode) /* nothing */ 116 #endif 117 118 #else 119 120 typedef struct _color_pairs colorpair_t; 121 122 #endif /* NEW_PAIR_INTERNAL */ 123 124 #if NO_LEAKS 125 extern NCURSES_EXPORT(void) _nc_new_pair_leaks(SCREEN*); 126 #endif 127 128 /* *INDENT-ON* */ 129 130 #endif /* NEW_PAIR_H */ 131