/****************************************************************************
* Copyright 2018-2019,2020 Thomas E. Dickey *
* Copyright 1998-2016,2017 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: Juergen Pfeifer, 1995,1997 *
****************************************************************************/
/* $Id: form.h,v 0.31 2020/07/04 20:38:43 tom Exp $ */
#ifndef FORM_H
#define FORM_H
/* *INDENT-OFF*/
#include <curses.h>
#include <eti.h>
#ifdef __cplusplus
extern "C" {
#endif
#if defined(BUILDING_FORM)
# define FORM_IMPEXP NCURSES_EXPORT_GENERAL_EXPORT
#else
# define FORM_IMPEXP NCURSES_EXPORT_GENERAL_IMPORT
#endif
#define FORM_WRAPPED_VAR(type,name) extern FORM_IMPEXP type NCURSES_PUBLIC_VAR(name)(void)
#define FORM_EXPORT(type) FORM_IMPEXP type NCURSES_API
#define FORM_EXPORT_VAR(type) FORM_IMPEXP type
#ifndef FORM_PRIV_H
typedef void *FIELD_CELL;
#endif
#ifndef NCURSES_FIELD_INTERNALS
#define NCURSES_FIELD_INTERNALS /* nothing */
#endif
typedef int Form_Options;
typedef int Field_Options;
/**********
* _PAGE *
**********/
typedef struct pagenode
#if !NCURSES_OPAQUE_FORM
{
short pmin; /* index of first field on page */
short pmax; /* index of last field on page */
short smin; /* index of top leftmost field on page */
short smax; /* index of bottom rightmost field on page */
}
#endif /* !NCURSES_OPAQUE_FORM */
_PAGE;
/**********
* FIELD *
**********/
typedef struct fieldnode
#if 1 /* not yet: !NCURSES_OPAQUE_FORM */
{
unsigned short status; /* flags */
short rows; /* size in rows */
short cols; /* size in cols */
short frow; /* first row */
short fcol; /* first col */
int drows; /* dynamic rows */
int dcols; /* dynamic cols */
int maxgrow; /* maximum field growth */
int nrow; /* off-screen rows */
short nbuf; /* additional buffers */
short just; /* justification */
short page; /* page on form */
short index; /* into form -> field */
int pad; /* pad character */
chtype fore; /* foreground attribute */
chtype back; /* background attribute */
Field_Options opts; /* options */
struct fieldnode * snext; /* sorted order pointer */
struct fieldnode * sprev; /* sorted order pointer */
struct fieldnode * link; /* linked field chain */
struct formnode * form; /* containing form */
struct typenode * type; /* field type */
void * arg; /* argument for type */
FIELD_CELL * buf; /* field buffers */
void * usrptr; /* user pointer */
/*
* The wide-character configuration requires extra information. Because
* there are existing applications that manipulate the members of FIELD
* directly, we cannot make the struct opaque, except by changing the ABI.
* Offsets of members up to this point are the same in the narrow- and
* wide-character configuration. But note that the type of buf depends on
* the configuration, and is made opaque for that reason.
*/
NCURSES_FIELD_INTERNALS
}
#endif /* NCURSES_OPAQUE_FORM */
FIELD;
/*********
* FORM *
*********/
typedef struct formnode
#if 1 /* not yet: !NCURSES_OPAQUE_FORM */
{
unsigned short status; /* flags */
short rows; /* size in rows */
short cols; /* size in cols */
int currow; /* current row in field window */
int curcol; /* current col in field window */
int toprow; /* in scrollable field window */
int begincol; /* in horiz. scrollable field */
short maxfield; /* number of fields */
short maxpage; /* number of pages */
short curpage; /* index into page */
Form_Options opts; /* options */
WINDOW * win; /* window */
WINDOW * sub; /* subwindow */
WINDOW * w; /* window for current field */
FIELD ** field; /* field [maxfield] */
FIELD * current; /* current field */
_PAGE * page; /* page [maxpage] */
void * usrptr; /* user pointer */
void (*forminit)(struct formnode *);
void (*formterm)(struct formnode *);
void (*fieldinit)(struct formnode *);
void (*fieldterm)(struct formnode *);
}
#endif /* !NCURSES_OPAQUE_FORM */
FORM;
/**************
* FIELDTYPE *
**************/
typedef struct typenode
#if !NCURSES_OPAQUE_FORM
{
unsigned short status; /* flags */
long ref; /* reference count */
struct typenode * left; /* ptr to operand for | */
struct typenode * right; /* ptr to operand for | */
void* (*makearg)(va_list *); /* make fieldtype arg */
void* (*copyarg)(const void *); /* copy fieldtype arg */
void (*freearg)(void *); /* free fieldtype arg */
#if NCURSES_INTEROP_FUNCS
union {
bool (*ofcheck)(FIELD *,const void *); /* field validation */
bool (*gfcheck)(FORM*,FIELD *,const void*); /* generic field validation */
} fieldcheck;
union {
bool (*occheck)(int,const void *); /* character validation */
bool (*gccheck)(int,FORM*,
FIELD*,const void*); /* generic char validation */
} charcheck;
union {
bool (*onext)(FIELD *,const void *); /* enumerate next value */
bool (*gnext)(FORM*,FIELD*,const void*); /* generic enumerate next */
} enum_next;
union {
bool (*oprev)(FIELD *,const void *); /* enumerate prev value */
bool (*gprev)(FORM*,FIELD*,const void*); /* generic enumerate prev */
} enum_prev;
void* (*genericarg)(void*); /* Alternate Arg method */
#else
bool (*fcheck)(FIELD *,const void *); /* field validation */
bool (*ccheck)(int,const void *); /* character validation */
bool (*next)(FIELD *,const void *); /* enumerate next value */
bool (*prev)(FIELD *,const void *); /* enumerate prev value */
#endif
}
#endif /* !NCURSES_OPAQUE_FORM */
FIELDTYPE;
typedef void (*Form_Hook)(FORM *);
/***************************
* miscellaneous #defines *
***************************/
/* field justification */
#define NO_JUSTIFICATION (0)
#define JUSTIFY_LEFT (1)
#define JUSTIFY_CENTER (2)
#define JUSTIFY_RIGHT (3)
/* field options */
#define O_VISIBLE (0x0001U)
#define O_ACTIVE (0x0002U)
#define O_PUBLIC (0x0004U)
#define O_EDIT (0x0008U)
#define O_WRAP (0x0010U)
#define O_BLANK (0x0020U)
#define O_AUTOSKIP (0x0040U)
#define O_NULLOK (0x0080U)
#define O_PASSOK (0x0100U)
#define O_STATIC (0x0200U)
#define O_DYNAMIC_JUSTIFY (0x0400U) /* ncurses extension */
#define O_NO_LEFT_STRIP (0x0800U) /* ncurses extension */
#define O_EDGE_INSERT_STAY (0x1000U) /* ncurses extension */
#define O_INPUT_LIMIT (0x2000U) /* ncurses extension */
/* form options */
#define O_NL_OVERLOAD (0x0001U)
#define O_BS_OVERLOAD (0x0002U)
/* form driver commands */
#define REQ_NEXT_PAGE (KEY_MAX + 1) /* move to next page */
#define REQ_PREV_PAGE (KEY_MAX + 2) /* move to previous page */
#define REQ_FIRST_PAGE (KEY_MAX + 3) /* move to first page */
#define REQ_LAST_PAGE (KEY_MAX + 4) /* move to last page */
#define REQ_NEXT_FIELD (KEY_MAX + 5) /* move to next field */
#define REQ_PREV_FIELD (KEY_MAX + 6) /* move to previous field */
#define REQ_FIRST_FIELD (KEY_MAX + 7) /* move to first field */
#define REQ_LAST_FIELD (KEY_MAX + 8) /* move to last field */
#define REQ_SNEXT_FIELD (KEY_MAX + 9) /* move to sorted next field */
#define REQ_SPREV_FIELD (KEY_MAX + 10) /* move to sorted prev field */
#define REQ_SFIRST_FIELD (KEY_MAX + 11) /* move to sorted first field */
#define REQ_SLAST_FIELD (KEY_MAX + 12) /* move to sorted last field */
#define REQ_LEFT_FIELD (KEY_MAX + 13) /* move to left to field */
#define REQ_RIGHT_FIELD (KEY_MAX + 14) /* move to right to field */
#define REQ_UP_FIELD (KEY_MAX + 15) /* move to up to field */
#define REQ_DOWN_FIELD (KEY_MAX + 16) /* move to down to field */
#define REQ_NEXT_CHAR (KEY_MAX + 17) /* move to next char in field */
#define REQ_PREV_CHAR (KEY_MAX + 18) /* move to prev char in field */
#define REQ_NEXT_LINE (KEY_MAX + 19) /* move to next line in field */
#define REQ_PREV_LINE (KEY_MAX + 20) /* move to prev line in field */
#define REQ_NEXT_WORD (KEY_MAX + 21) /* move to next word in field */
#define REQ_PREV_WORD (KEY_MAX + 22) /* move to prev word in field */
#define REQ_BEG_FIELD (KEY_MAX + 23) /* move to first char in field */
#define REQ_END_FIELD (KEY_MAX + 24) /* move after last char in fld */
#define REQ_BEG_LINE (KEY_MAX + 25) /* move to beginning of line */
#define REQ_END_LINE (KEY_MAX + 26) /* move after last char in line */
#define REQ_LEFT_CHAR (KEY_MAX + 27) /* move left in field */
#define REQ_RIGHT_CHAR (KEY_MAX + 28) /* move right in field */
#define REQ_UP_CHAR (KEY_MAX + 29) /* move up in field */
#define REQ_DOWN_CHAR (KEY_MAX + 30) /* move down in field */
#define REQ_NEW_LINE (KEY_MAX + 31) /* insert/overlay new line */
#define REQ_INS_CHAR (KEY_MAX + 32) /* insert blank char at cursor */
#define REQ_INS_LINE (KEY_MAX + 33) /* insert blank line at cursor */
#define REQ_DEL_CHAR (KEY_MAX + 34) /* delete char at cursor */
#define REQ_DEL_PREV (KEY_MAX + 35) /* delete char before cursor */
#define REQ_DEL_LINE (KEY_MAX + 36) /* delete line at cursor */
#define REQ_DEL_WORD (KEY_MAX + 37) /* delete word at cursor */
#define REQ_CLR_EOL (KEY_MAX + 38) /* clear to end of line */
#define REQ_CLR_EOF (KEY_MAX + 39) /* clear to end of field */
#define REQ_CLR_FIELD (KEY_MAX + 40) /* clear entire field */
#define REQ_OVL_MODE (KEY_MAX + 41) /* begin overlay mode */
#define REQ_INS_MODE (KEY_MAX + 42) /* begin insert mode */
#define REQ_SCR_FLINE (KEY_MAX + 43) /* scroll field forward a line */
#define REQ_SCR_BLINE (KEY_MAX + 44) /* scroll field backward a line */
#define REQ_SCR_FPAGE (KEY_MAX + 45) /* scroll field forward a page */
#define REQ_SCR_BPAGE (KEY_MAX + 46) /* scroll field backward a page */
#define REQ_SCR_FHPAGE (KEY_MAX + 47) /* scroll field forward half page */
#define REQ_SCR_BHPAGE (KEY_MAX + 48) /* scroll field backward half page */
#define REQ_SCR_FCHAR (KEY_MAX + 49) /* horizontal scroll char */
#define REQ_SCR_BCHAR (KEY_MAX + 50) /* horizontal scroll char */
#define REQ_SCR_HFLINE (KEY_MAX + 51) /* horizontal scroll line */
#define REQ_SCR_HBLINE (KEY_MAX + 52) /* horizontal scroll line */
#define REQ_SCR_HFHALF (KEY_MAX + 53) /* horizontal scroll half line */
#define REQ_SCR_HBHALF (KEY_MAX + 54) /* horizontal scroll half line */
#define REQ_VALIDATION (KEY_MAX + 55) /* validate field */
#define REQ_NEXT_CHOICE (KEY_MAX + 56) /* display next field choice */
#define REQ_PREV_CHOICE (KEY_MAX + 57) /* display prev field choice */
#define MIN_FORM_COMMAND (KEY_MAX + 1) /* used by form_driver */
#define MAX_FORM_COMMAND (KEY_MAX + 57) /* used by form_driver */
#if defined(MAX_COMMAND)
# if (MAX_FORM_COMMAND > MAX_COMMAND)
# error Something is wrong -- MAX_FORM_COMMAND is greater than MAX_COMMAND
# elif (MAX_COMMAND != (KEY_MAX + 128))
# error Something is wrong -- MAX_COMMAND is already inconsistently defined.
# endif
#else
# define MAX_COMMAND (KEY_MAX + 128)
#endif
/*************************
* standard field types *
*************************/
extern FORM_EXPORT_VAR(FIELDTYPE *) TYPE_ALPHA;
extern FORM_EXPORT_VAR(FIELDTYPE *) TYPE_ALNUM;
extern FORM_EXPORT_VAR(FIELDTYPE *) TYPE_ENUM;
extern FORM_EXPORT_VAR(FIELDTYPE *) TYPE_INTEGER;
extern FORM_EXPORT_VAR(FIELDTYPE *) TYPE_NUMERIC;
extern FORM_EXPORT_VAR(FIELDTYPE *) TYPE_REGEXP;
/************************************
* built-in additional field types *
* They are not defined in SVr4 *
************************************/
extern FORM_EXPORT_VAR(FIELDTYPE *) TYPE_IPV4; /* Internet IP Version 4 address */
/***********************
* FIELDTYPE routines *
***********************/
extern FORM_EXPORT(FIELDTYPE *) new_fieldtype (
bool (* const field_check)(FIELD *,const void *),
bool (* const char_check)(int,const void *));
extern FORM_EXPORT(FIELDTYPE *) link_fieldtype(
FIELDTYPE *, FIELDTYPE *);
extern FORM_EXPORT(int) free_fieldtype (FIELDTYPE *);
extern FORM_EXPORT(int) set_fieldtype_arg (FIELDTYPE *,
void * (* const make_arg)(va_list *),
void * (* const copy_arg)(const void *),
void (* const free_arg)(void *));
extern FORM_EXPORT(int) set_fieldtype_choice (FIELDTYPE *,
bool (* const next_choice)(FIELD *,const void *),
bool (* const prev_choice)(FIELD *,const void *));
/*******************
* FIELD routines *
*******************/
extern FORM_EXPORT(FIELD *) new_field (int,int,int,int,int,int);
extern FORM_EXPORT(FIELD *) dup_field (FIELD *,int,int);
extern FORM_EXPORT(FIELD *) link_field (FIELD *,int,int);
extern FORM_EXPORT(int) free_field (FIELD *);
extern FORM_EXPORT(int) field_info (const FIELD *,int *,int *,int *,int *,int *,int *);
extern FORM_EXPORT(int) dynamic_field_info (const FIELD *,int *,int *,int *);
extern FORM_EXPORT(int) set_max_field ( FIELD *,int);
extern FORM_EXPORT(int) move_field (FIELD *,int,int);
extern FORM_EXPORT(int) set_field_type (FIELD *,FIELDTYPE *,...);
extern FORM_EXPORT(int) set_new_page (FIELD *,bool);
extern FORM_EXPORT(int) set_field_just (FIELD *,int);
extern FORM_EXPORT(int) field_just (const FIELD *);
extern FORM_EXPORT(int) set_field_fore (FIELD *,chtype);
extern FORM_EXPORT(int) set_field_back (FIELD *,chtype);
extern FORM_EXPORT(int) set_field_pad (FIELD *,int);
extern FORM_EXPORT(int) field_pad (const FIELD *);
extern FORM_EXPORT(int) set_field_buffer (FIELD *,int,const char *);
extern FORM_EXPORT(int) set_field_status (FIELD *,bool);
extern FORM_EXPORT(int) set_field_userptr (FIELD *, void *);
extern FORM_EXPORT(int) set_field_opts (FIELD *,Field_Options);
extern FORM_EXPORT(int) field_opts_on (FIELD *,Field_Options);
extern FORM_EXPORT(int) field_opts_off (FIELD *,Field_Options);
extern FORM_EXPORT(chtype) field_fore (const FIELD *);
extern FORM_EXPORT(chtype) field_back (const FIELD *);
extern FORM_EXPORT(bool) new_page (const FIELD *);
extern FORM_EXPORT(bool) field_status (const FIELD *);
extern FORM_EXPORT(void *) field_arg (const FIELD *);
extern FORM_EXPORT(void *) field_userptr (const FIELD *);
extern FORM_EXPORT(FIELDTYPE *) field_type (const FIELD *);
extern FORM_EXPORT(char *) field_buffer (const FIELD *,int);
extern FORM_EXPORT(Field_Options) field_opts (const FIELD *);
/******************
* FORM routines *
******************/
extern FORM_EXPORT(FORM *) new_form (FIELD **);
extern FORM_EXPORT(FIELD **) form_fields (const FORM *);
extern FORM_EXPORT(FIELD *) current_field (const FORM *);
extern FORM_EXPORT(WINDOW *) form_win (const FORM *);
extern FORM_EXPORT(WINDOW *) form_sub (const FORM *);
extern FORM_EXPORT(Form_Hook) form_init (const FORM *);
extern FORM_EXPORT(Form_Hook) form_term (const FORM *);
extern FORM_EXPORT(Form_Hook) field_init (const FORM *);
extern FORM_EXPORT(Form_Hook) field_term (const FORM *);
extern FORM_EXPORT(int) free_form (FORM *);
extern FORM_EXPORT(int) set_form_fields (FORM *,FIELD **);
extern FORM_EXPORT(int) field_count (const FORM *);
extern FORM_EXPORT(int) set_form_win (FORM *,WINDOW *);
extern FORM_EXPORT(int) set_form_sub (FORM *,WINDOW *);
extern FORM_EXPORT(int) set_current_field (FORM *,FIELD *);
extern FORM_EXPORT(int) unfocus_current_field (FORM *);
extern FORM_EXPORT(int) field_index (const FIELD *);
extern FORM_EXPORT(int) set_form_page (FORM *,int);
extern FORM_EXPORT(int) form_page (const FORM *);
extern FORM_EXPORT(int) scale_form (const FORM *,int *,int *);
extern FORM_EXPORT(int) set_form_init (FORM *,Form_Hook);
extern FORM_EXPORT(int) set_form_term (FORM *,Form_Hook);
extern FORM_EXPORT(int) set_field_init (FORM *,Form_Hook);
extern FORM_EXPORT(int) set_field_term (FORM *,Form_Hook);
extern FORM_EXPORT(int) post_form (FORM *);
extern FORM_EXPORT(int) unpost_form (FORM *);
extern FORM_EXPORT(int) pos_form_cursor (FORM *);
extern FORM_EXPORT(int) form_driver (FORM *,int);
# if NCURSES_WIDECHAR
extern FORM_EXPORT(int) form_driver_w (FORM *,int,wchar_t);
# endif
extern FORM_EXPORT(int) set_form_userptr (FORM *,void *);
extern FORM_EXPORT(int) set_form_opts (FORM *,Form_Options);
extern FORM_EXPORT(int) form_opts_on (FORM *,Form_Options);
extern FORM_EXPORT(int) form_opts_off (FORM *,Form_Options);
extern FORM_EXPORT(int) form_request_by_name (const char *);
extern FORM_EXPORT(const char *) form_request_name (int);
extern FORM_EXPORT(void *) form_userptr (const FORM *);
extern FORM_EXPORT(Form_Options) form_opts (const FORM *);
extern FORM_EXPORT(bool) data_ahead (const FORM *);
extern FORM_EXPORT(bool) data_behind (const FORM *);
#if NCURSES_SP_FUNCS
extern FORM_EXPORT(FORM *) NCURSES_SP_NAME(new_form) (SCREEN*, FIELD **);
#endif
#ifdef __cplusplus
}
#endif
/* *INDENT-ON*/
#endif /* FORM_H */
