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- /****************************************************************************
- * 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 0.30 2020/02/02 23:34:34 tom Exp $ */
- #ifndef FORM_H
- #define FORM_H
- /* *INDENT-OFF*/
- #include <curses.h>
- #include <eti.h>
- #ifdef __cplusplus
- extern "C" {
- #endif
- #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 NCURSES_EXPORT_VAR(FIELDTYPE *) TYPE_ALPHA;
- extern NCURSES_EXPORT_VAR(FIELDTYPE *) TYPE_ALNUM;
- extern NCURSES_EXPORT_VAR(FIELDTYPE *) TYPE_ENUM;
- extern NCURSES_EXPORT_VAR(FIELDTYPE *) TYPE_INTEGER;
- extern NCURSES_EXPORT_VAR(FIELDTYPE *) TYPE_NUMERIC;
- extern NCURSES_EXPORT_VAR(FIELDTYPE *) TYPE_REGEXP;
- /************************************
- * built-in additional field types *
- * They are not defined in SVr4 *
- ************************************/
- extern NCURSES_EXPORT_VAR(FIELDTYPE *) TYPE_IPV4; /* Internet IP Version 4 address */
- /***********************
- * FIELDTYPE routines *
- ***********************/
- extern NCURSES_EXPORT(FIELDTYPE *) new_fieldtype (
- bool (* const field_check)(FIELD *,const void *),
- bool (* const char_check)(int,const void *));
- extern NCURSES_EXPORT(FIELDTYPE *) link_fieldtype(
- FIELDTYPE *, FIELDTYPE *);
- extern NCURSES_EXPORT(int) free_fieldtype (FIELDTYPE *);
- extern NCURSES_EXPORT(int) set_fieldtype_arg (FIELDTYPE *,
- void * (* const make_arg)(va_list *),
- void * (* const copy_arg)(const void *),
- void (* const free_arg)(void *));
- extern NCURSES_EXPORT(int) set_fieldtype_choice (FIELDTYPE *,
- bool (* const next_choice)(FIELD *,const void *),
- bool (* const prev_choice)(FIELD *,const void *));
- /*******************
- * FIELD routines *
- *******************/
- extern NCURSES_EXPORT(FIELD *) new_field (int,int,int,int,int,int);
- extern NCURSES_EXPORT(FIELD *) dup_field (FIELD *,int,int);
- extern NCURSES_EXPORT(FIELD *) link_field (FIELD *,int,int);
- extern NCURSES_EXPORT(int) free_field (FIELD *);
- extern NCURSES_EXPORT(int) field_info (const FIELD *,int *,int *,int *,int *,int *,int *);
- extern NCURSES_EXPORT(int) dynamic_field_info (const FIELD *,int *,int *,int *);
- extern NCURSES_EXPORT(int) set_max_field ( FIELD *,int);
- extern NCURSES_EXPORT(int) move_field (FIELD *,int,int);
- extern NCURSES_EXPORT(int) set_field_type (FIELD *,FIELDTYPE *,...);
- extern NCURSES_EXPORT(int) set_new_page (FIELD *,bool);
- extern NCURSES_EXPORT(int) set_field_just (FIELD *,int);
- extern NCURSES_EXPORT(int) field_just (const FIELD *);
- extern NCURSES_EXPORT(int) set_field_fore (FIELD *,chtype);
- extern NCURSES_EXPORT(int) set_field_back (FIELD *,chtype);
- extern NCURSES_EXPORT(int) set_field_pad (FIELD *,int);
- extern NCURSES_EXPORT(int) field_pad (const FIELD *);
- extern NCURSES_EXPORT(int) set_field_buffer (FIELD *,int,const char *);
- extern NCURSES_EXPORT(int) set_field_status (FIELD *,bool);
- extern NCURSES_EXPORT(int) set_field_userptr (FIELD *, void *);
- extern NCURSES_EXPORT(int) set_field_opts (FIELD *,Field_Options);
- extern NCURSES_EXPORT(int) field_opts_on (FIELD *,Field_Options);
- extern NCURSES_EXPORT(int) field_opts_off (FIELD *,Field_Options);
- extern NCURSES_EXPORT(chtype) field_fore (const FIELD *);
- extern NCURSES_EXPORT(chtype) field_back (const FIELD *);
- extern NCURSES_EXPORT(bool) new_page (const FIELD *);
- extern NCURSES_EXPORT(bool) field_status (const FIELD *);
- extern NCURSES_EXPORT(void *) field_arg (const FIELD *);
- extern NCURSES_EXPORT(void *) field_userptr (const FIELD *);
- extern NCURSES_EXPORT(FIELDTYPE *) field_type (const FIELD *);
- extern NCURSES_EXPORT(char *) field_buffer (const FIELD *,int);
- extern NCURSES_EXPORT(Field_Options) field_opts (const FIELD *);
- /******************
- * FORM routines *
- ******************/
- extern NCURSES_EXPORT(FORM *) new_form (FIELD **);
- extern NCURSES_EXPORT(FIELD **) form_fields (const FORM *);
- extern NCURSES_EXPORT(FIELD *) current_field (const FORM *);
- extern NCURSES_EXPORT(WINDOW *) form_win (const FORM *);
- extern NCURSES_EXPORT(WINDOW *) form_sub (const FORM *);
- extern NCURSES_EXPORT(Form_Hook) form_init (const FORM *);
- extern NCURSES_EXPORT(Form_Hook) form_term (const FORM *);
- extern NCURSES_EXPORT(Form_Hook) field_init (const FORM *);
- extern NCURSES_EXPORT(Form_Hook) field_term (const FORM *);
- extern NCURSES_EXPORT(int) free_form (FORM *);
- extern NCURSES_EXPORT(int) set_form_fields (FORM *,FIELD **);
- extern NCURSES_EXPORT(int) field_count (const FORM *);
- extern NCURSES_EXPORT(int) set_form_win (FORM *,WINDOW *);
- extern NCURSES_EXPORT(int) set_form_sub (FORM *,WINDOW *);
- extern NCURSES_EXPORT(int) set_current_field (FORM *,FIELD *);
- extern NCURSES_EXPORT(int) unfocus_current_field (FORM *);
- extern NCURSES_EXPORT(int) field_index (const FIELD *);
- extern NCURSES_EXPORT(int) set_form_page (FORM *,int);
- extern NCURSES_EXPORT(int) form_page (const FORM *);
- extern NCURSES_EXPORT(int) scale_form (const FORM *,int *,int *);
- extern NCURSES_EXPORT(int) set_form_init (FORM *,Form_Hook);
- extern NCURSES_EXPORT(int) set_form_term (FORM *,Form_Hook);
- extern NCURSES_EXPORT(int) set_field_init (FORM *,Form_Hook);
- extern NCURSES_EXPORT(int) set_field_term (FORM *,Form_Hook);
- extern NCURSES_EXPORT(int) post_form (FORM *);
- extern NCURSES_EXPORT(int) unpost_form (FORM *);
- extern NCURSES_EXPORT(int) pos_form_cursor (FORM *);
- extern NCURSES_EXPORT(int) form_driver (FORM *,int);
- # if NCURSES_WIDECHAR
- extern NCURSES_EXPORT(int) form_driver_w (FORM *,int,wchar_t);
- # endif
- extern NCURSES_EXPORT(int) set_form_userptr (FORM *,void *);
- extern NCURSES_EXPORT(int) set_form_opts (FORM *,Form_Options);
- extern NCURSES_EXPORT(int) form_opts_on (FORM *,Form_Options);
- extern NCURSES_EXPORT(int) form_opts_off (FORM *,Form_Options);
- extern NCURSES_EXPORT(int) form_request_by_name (const char *);
- extern NCURSES_EXPORT(const char *) form_request_name (int);
- extern NCURSES_EXPORT(void *) form_userptr (const FORM *);
- extern NCURSES_EXPORT(Form_Options) form_opts (const FORM *);
- extern NCURSES_EXPORT(bool) data_ahead (const FORM *);
- extern NCURSES_EXPORT(bool) data_behind (const FORM *);
- #if NCURSES_SP_FUNCS
- extern NCURSES_EXPORT(FORM *) NCURSES_SP_NAME(new_form) (SCREEN*, FIELD **);
- #endif
- #ifdef __cplusplus
- }
- #endif
- /* *INDENT-ON*/
- #endif /* FORM_H */
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