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Diffstat (limited to 'ncurses/new_pair.h')
| -rw-r--r-- | ncurses/new_pair.h | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/ncurses/new_pair.h b/ncurses/new_pair.h new file mode 100644 index 000000000000..49828d4a7725 --- /dev/null +++ b/ncurses/new_pair.h @@ -0,0 +1,130 @@ +/**************************************************************************** + * Copyright (c) 2017,2018 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 1.9 2018/03/01 15:02:12 tom Exp $ + */ + +#ifndef NEW_PAIR_H +#define NEW_PAIR_H 1 +/* *INDENT-OFF* */ + +#define LIMIT_TYPED(n,t) \ + (t)(((n) > MAX_OF_TYPE(t)) \ + ? MAX_OF_TYPE(t) \ + : ((n) < -MAX_OF_TYPE(t)) \ + ? -MAX_OF_TYPE(t) \ + : (n)) + +#define limit_COLOR(n) LIMIT_TYPED(n,NCURSES_COLOR_T) +#define limit_PAIRS(n) LIMIT_TYPED(n,NCURSES_PAIRS_T) + +#define MAX_XCURSES_PAIR MAX_OF_TYPE(NCURSES_PAIRS_T) + +#if NCURSES_EXT_COLORS +#define OPTIONAL_PAIR GCC_UNUSED +#define get_extended_pair(opts, color_pair) \ + if ((opts) != NULL) { \ + *(int*)(opts) = color_pair; \ + } +#define set_extended_pair(opts, color_pair) \ + if ((opts) != NULL) { \ + color_pair = *(const int*)(opts); \ + } +#else +#define OPTIONAL_PAIR /* nothing */ +#define get_extended_pair(opts, color_pair) /* nothing */ +#define set_extended_pair(opts, color_pair) \ + if ((opts) != NULL) { \ + color_pair = -1; \ + } +#endif + +#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 NCURSES_EXT_COLORS + int mode; /* tells if the entry is allocated or free */ + 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 NCURSES_EXT_COLORS +extern NCURSES_EXPORT(void) _nc_copy_pairs(SCREEN*, colorpair_t*, colorpair_t*, int); +extern NCURSES_EXPORT(void) _nc_free_ordered_pairs(SCREEN*); +extern NCURSES_EXPORT(void) _nc_reset_color_pair(SCREEN*, int, colorpair_t*); +extern NCURSES_EXPORT(void) _nc_set_color_pair(SCREEN*, int, int); +#else +#define _nc_free_ordered_pairs(sp) /* nothing */ +#define _nc_reset_color_pair(sp, pair, data) /* nothing */ +#define _nc_set_color_pair(sp, pair, mode) /* 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 */ |