curses_p.h
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/****************************************************************************
* Copyright (c) 1998-2001,2002 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: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
* and: Eric S. Raymond <esr@snark.thyrsus.com> *
* and: Thomas E. Dickey 1996-2002 *
****************************************************************************/
/*
* $Id: curses.priv.h,v 1.228 2002/10/12 15:49:10 tom Exp $
*
* curses.priv.h
*
* Header file for curses library objects which are private to
* the library.
*
*/
#ifndef CURSES_PRIV_H
#define CURSES_PRIV_H 1
#include <ncursdll.h>
#ifdef __cplusplus
extern "C" {
#endif
#include <ncurscfg.h>
#if USE_RCS_IDS
#define MODULE_ID(id) static const char Ident[] = id;
#else
#define MODULE_ID(id) /*nothing*/
#endif
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
#if HAVE_SYS_BSDTYPES_H
#include <sys/bsdtypes.h> /* needed for ISC */
#endif
#if HAVE_LIMITS_H
# include <limits.h>
#elif HAVE_SYS_PARAM_H
# include <sys/param.h>
#endif
#ifndef PATH_MAX
# if defined(_POSIX_PATH_MAX)
# define PATH_MAX _POSIX_PATH_MAX
# elif defined(MAXPATHLEN)
# define PATH_MAX MAXPATHLEN
# else
# define PATH_MAX 255 /* the Posix minimum path-size */
# endif
#endif
#include <assert.h>
#include <stdio.h>
#include <errno.h>
#if DECL_ERRNO
extern int errno;
#endif
#include <nc_panel.h>
/* Some systems have a broken 'select()', but workable 'poll()'. Use that */
#if HAVE_WORKING_POLL
#define USE_FUNC_POLL 1
#if HAVE_POLL_H
#include <poll.h>
#else
#include <sys/poll.h>
#endif
#else
#define USE_FUNC_POLL 0
#endif
/* include signal.h before curses.h to work-around defect in glibc 2.1.3 */
#include <signal.h>
/* Alessandro Rubini's GPM (general-purpose mouse) */
#if HAVE_LIBGPM && HAVE_GPM_H
#define USE_GPM_SUPPORT 1
#else
#define USE_GPM_SUPPORT 0
#endif
/* QNX mouse support */
#if defined(__QNX__) && !defined(__QNXNTO__)
#define USE_QNX_MOUSE 1
#else
#define USE_QNX_MOUSE 0
#endif
/* EMX mouse support */
#ifdef __EMX__
#define USE_EMX_MOUSE
#endif
#define DEFAULT_MAXCLICK 166
#define EV_MAX 8 /* size of mouse circular event queue */
/*
* If we don't have signals to support it, don't add a sigwinch handler.
* In any case, resizing is an extended feature. Use it if we've got it.
*/
#if 0
#if !NCURSES_EXT_FUNCS
#undef HAVE_SIZECHANGE
#define HAVE_SIZECHANGE 0
#endif
#endif
#if HAVE_SIZECHANGE && defined(SIGWINCH)
#define USE_SIZECHANGE 1
#else
#define USE_SIZECHANGE 0
#undef USE_SIGWINCH
#define USE_SIGWINCH 0
#endif
#undef USE_SIZECHANGE
#define USE_SIZECHANGE 0
/*
* If desired, one can configure this, disabling environment variables that
* point to custom terminfo/termcap locations.
*/
#ifdef USE_ROOT_ENVIRON
#define use_terminfo_vars() 1
#else
#define use_terminfo_vars() _nc_env_access()
extern NCURSES_EXPORT(int) _nc_env_access (void);
#endif
/*
* Not all platforms have memmove; some have an equivalent bcopy. (Some may
* have neither).
*/
#if USE_OK_BCOPY
#define memmove(d,s,n) bcopy(s,d,n)
#elif USE_MY_MEMMOVE
#define memmove(d,s,n) _nc_memmove(d,s,n)
extern NCURSES_EXPORT(void *) _nc_memmove (void *, const void *, size_t);
#endif
/*
* Scroll hints are useless when hashmap is used
*/
#if !USE_SCROLL_HINTS
#if !USE_HASHMAP
#define USE_SCROLL_HINTS 1
#else
#define USE_SCROLL_HINTS 0
#endif
#endif
#if USE_SCROLL_HINTS
#define if_USE_SCROLL_HINTS(stmt) stmt
#else
#define if_USE_SCROLL_HINTS(stmt) /*nothing*/
#endif
/*
* Note: ht/cbt expansion flakes out randomly under Linux 1.1.47, but only
* when we're throwing control codes at the screen at high volume. To see
* this, re-enable USE_HARD_TABS and run worm for a while. Other systems
* probably don't want to define this either due to uncertainties about tab
* delays and expansion in raw mode.
*/
struct tries {
struct tries *child; /* ptr to child. NULL if none */
struct tries *sibling; /* ptr to sibling. NULL if none */
unsigned char ch; /* character at this node */
unsigned short value; /* code of string so far. 0 if none. */
};
/*
* Definitions for color pairs
*/
#define C_SHIFT 8 /* we need more bits than there are colors */
#define C_MASK ((1 << C_SHIFT) - 1)
#define PAIR_OF(fg, bg) ((((fg) & C_MASK) << C_SHIFT) | ((bg) & C_MASK))
/*
* Common/troublesome character definitions
*/
#define L_BRACE '{'
#define R_BRACE '}'
#define S_QUOTE '\''
#define D_QUOTE '"'
#define VT_ACSC "``aaffggiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz{{||}}~~"
/*
* Structure for palette tables
*/
typedef struct
{
short red, green, blue; /* what color_content() returns */
short r, g, b; /* params to init_color() */
int init; /* true if we called init_color() */
}
color_t;
#define MAXCOLUMNS 135
#define MAXLINES 66
#define FIFO_SIZE MAXCOLUMNS+2 /* for nocbreak mode input */
#define ACS_LEN 128
#define WINDOWLIST struct _win_list
#if USE_WIDEC_SUPPORT
#define _nc_bkgd _bkgrnd
#else
#undef _XOPEN_SOURCE_EXTENDED
#define _nc_bkgd _bkgd
#define wgetbkgrnd(win, wch) *wch = win->_bkgd
#define wbkgrnd wbkgd
#endif
#include <curses.h> /* we'll use -Ipath directive to get the right one! */
#include <term.h>
struct ldat
{
NCURSES_CH_T *text; /* text of the line */
NCURSES_SIZE_T firstchar; /* first changed character in the line */
NCURSES_SIZE_T lastchar; /* last changed character in the line */
NCURSES_SIZE_T oldindex; /* index of the line at last update */
};
/*
* Structure for soft labels.
*/
typedef struct
{
char *text; /* text for the label */
char *form_text; /* formatted text (left/center/...) */
int x; /* x coordinate of this field */
char dirty; /* this label has changed */
char visible; /* field is visible */
} slk_ent;
typedef struct {
char dirty; /* all labels have changed */
char hidden; /* soft labels are hidden */
WINDOW *win;
slk_ent *ent;
char* buffer; /* buffer for labels */
short maxlab; /* number of available labels */
short labcnt; /* number of allocated labels */
short maxlen; /* length of labels */
chtype attr; /* soft label attribute */
} SLK;
typedef struct {
unsigned long hashval;
int oldcount, newcount;
int oldindex, newindex;
} HASHMAP;
typedef struct {
int line; /* lines to take, < 0 => from bottom*/
int (*hook)(WINDOW *, int); /* callback for user */
WINDOW *w; /* maybe we need this for cleanup */
} ripoff_t;
struct screen {
int _ifd; /* input file ptr for screen */
FILE *_ofp; /* output file ptr for screen */
char *_setbuf; /* buffered I/O for output */
int _buffered; /* setvbuf uses _setbuf data */
int _checkfd; /* filedesc for typeahead check */
struct term *_term; /* terminal type information */
short _lines; /* screen lines */
short _columns; /* screen columns */
short _lines_avail; /* lines available for stdscr */
short _topstolen; /* lines stolen from top */
ripoff_t _rippedoff[5]; /* list of lines stolen */
int _rip_count; /* ...and total lines stolen */
WINDOW *_curscr; /* current screen */
WINDOW *_newscr; /* virtual screen to be updated to */
WINDOW *_stdscr; /* screen's full-window context */
struct tries *_keytry; /* "Try" for use with keypad mode */
struct tries *_key_ok; /* Disabled keys via keyok(,FALSE) */
bool _tried; /* keypad mode was initialized */
bool _keypad_on; /* keypad mode is currently on */
int _fifo[FIFO_SIZE]; /* input push-back buffer */
short _fifohead, /* head of fifo queue */
_fifotail, /* tail of fifo queue */
_fifopeek, /* where to peek for next char */
_fifohold; /* set if breakout marked */
int _endwin; /* are we out of window mode? */
attr_t _current_attr; /* terminal attribute current set */
int _coloron; /* is color enabled? */
int _color_defs; /* are colors modified */
int _cursor; /* visibility of the cursor */
int _cursrow; /* physical cursor row */
int _curscol; /* physical cursor column */
int _nl; /* True if NL -> CR/NL is on */
int _raw; /* True if in raw mode */
int _cbreak; /* 1 if in cbreak mode */
/* > 1 if in halfdelay mode */
int _echo; /* True if echo on */
int _use_meta; /* use the meta key? */
SLK *_slk; /* ptr to soft key struct / NULL */
int slk_format; /* selected format for this screen */
/* cursor movement costs; units are 10ths of milliseconds */
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